阅读说明：本技术 显示模组和显示装置 (Display module and display device ) 是由 王君荣 于 2021-09-07 设计创作，主要内容包括：本发明公开了一种显示模组和显示装置,属于显示技术领域,显示模组包括相对设置的背光模组和显示面板,显示模组包括镂空部,沿垂直于显示模组出光面的方向,镂空部至少贯穿背光模组,镂空部内设置有感光元件；显示模组还包括补光组件,补光组件包括导光膜和多个补光灯,导光膜围绕镂空部设置；显示面板和背光模组之间包括遮光胶带,遮光胶带围绕镂空部设置,导光膜位于遮光胶带靠近显示面板的一侧；补光灯的出光面朝向导光膜的入光面,导光膜的出光面朝向显示面板。显示装置包括上述显示模组。本发明可以解决屏下摄像头补光问题的同时,还可以进一步对遮光胶带所在区域进行补光,有利于真正实现全面屏。(The invention discloses a display module and a display device, belonging to the technical field of display, wherein the display module comprises a backlight module and a display panel which are oppositely arranged, the display module comprises a hollow part, the hollow part at least penetrates through the backlight module along the direction vertical to the light-emitting surface of the display module, and a photosensitive element is arranged in the hollow part; the display module further comprises a light supplementing assembly, the light supplementing assembly comprises a light guide film and a plurality of light supplementing lamps, and the light guide film is arranged around the hollow part; a shading adhesive tape is arranged between the display panel and the backlight module, the shading adhesive tape is arranged around the hollow part, and the light guide film is positioned on one side of the shading adhesive tape close to the display panel; the light emitting surface of the light supplementing lamp faces the light incident surface of the light guide film, and the light emitting surface of the light guide film faces the display panel. The display device comprises the display module. The invention can solve the problem of light supplement of the camera under the screen, and can also further supplement light to the area where the shading tape is positioned, thereby being beneficial to really realizing a full-screen.)

1. A display module, comprising: the display panel is positioned on one side of a light-emitting surface of the backlight module;

the display module comprises a hollow part, the hollow part at least penetrates through the backlight module along a direction perpendicular to a light-emitting surface of the display module, and a photosensitive element is arranged in the hollow part;

the display module further comprises a light supplementing assembly, the light supplementing assembly comprises a light guide film and a plurality of light supplementing lamps, and the light guide film is arranged around the hollow part;

a shading adhesive tape is arranged between the display panel and the backlight module, the shading adhesive tape is arranged around the hollow part, and the light guide film is positioned on one side of the shading adhesive tape close to the display panel;

the light supplement lamp is characterized in that the light emitting surface of the light supplement lamp faces the light incident surface of the light guide film, and the light emitting surface of the light guide film faces the display panel.

2. The display module according to claim 1, wherein the light guide film is a sheet structure, and the light supplement lamp is located on a side of the light guide film close to the hollow portion along a direction parallel to a light exit surface of the display module.

3. The display module according to claim 2, wherein the photosensitive element is fixedly connected to the display module through a first adhesive layer, and at least a portion of the first adhesive layer is located between the display panel and the photosensitive element;

along being on a parallel with the direction that display module goes out the plain noodles, first glue film orientation one side of leaded light membrane with the laminating of light filling lamp is fixed.

4. The display module as claimed in claim 2, wherein the light guiding film has a thickness of D1, and the light filling lamp has a width of D2, D1 ≧ D2.

5. The display module according to claim 1, wherein the light guiding film comprises a first sub-portion and a second sub-portion connected to each other, the first sub-portion extends in a direction parallel to a light emitting surface of the display module, and the first sub-portion is located between the light shielding tape and the display panel;

in a direction perpendicular to the light emitting surface of the display module, the second sub-portion is located on a side of the first sub-portion away from the display panel, and the extending direction of the second sub-portion intersects with the light emitting surface of the display module;

the light supplement lamp is located on one side, away from the first sub-portion, of the second sub-portion, and a light emitting surface of the light supplement lamp faces the end, away from the first sub-portion, of the second sub-portion.

6. The display module of claim 5, wherein the light-shielding tape is attached to the first sub-portion.

7. The display module of claim 5,

the backlight module comprises frame glue arranged around the hollow part, a groove is formed in one side, facing the display panel, of the frame glue, and the surface, close to the display panel, of one side of the frame glue is recessed towards the direction far away from the display panel to form the groove;

the second sub-part and the light supplement lamp are both embedded in the groove.

8. The display module according to claim 5, wherein the backlight module comprises a back plate and a plurality of optical films, the back plate forms a space for accommodating at least the optical films;

the backlight module comprises frame glue arranged around the hollow part, and the frame glue is fixed with the back plate;

the second sub-portion is located on one side, away from the hollow portion, of the frame glue along a direction parallel to a light-emitting surface of the display module, the back plate is provided with a through hole, and the light supplement lamp is arranged in the through hole.

9. The display module assembly of claim 8, wherein the fill light is connected to a flexible circuit board, and the flexible circuit board is attached to one side of the back plate, which is far away from the display panel.

10. The display module according to claim 5, wherein the backlight module comprises a sealant surrounding the hollow portion, the second sub-portion is located on a side of the sealant close to the hollow portion along a direction parallel to a light exit surface of the display module, and the light supplement lamp is fixed to the sealant.

11. The display module according to claim 1, wherein the plurality of light supplement lamps surround the hollow portion, and a distance between two adjacent light supplement lamps is equal in a direction parallel to a light emitting surface of the display module.

12. The display module of claim 1,

the display panel comprises a first display area and a second display area arranged around the first display area, and the orthographic projection of the hollow part to the light-emitting surface of the display module and the orthographic projection of the first display area to the light-emitting surface of the display module are overlapped.

13. A display device comprising the display module according to any one of claims 1 to 12.

Technical Field

The invention relates to the technical field of display, in particular to a display module and a display device.

Background

Flat panel Display devices such as Liquid Crystal Displays (LCDs) have advantages such as high image quality, power saving, thin body, and wide application range, and thus are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and are becoming the mainstream of Display devices. Most of the conventional liquid crystal displays in the market are Backlight liquid crystal displays (lcds), which include a liquid crystal display panel and a Backlight Module (Backlight Module). With the development of display technology, the technology of terminal display screens is continuously innovated, and all manufacturers seek the ultimate screen occupation ratio of a full screen; for the terminal, besides the screen, the necessary external display components on the display screen side of the terminal also include at least a front camera, a photoelectric sensor and other devices. In the related art, for the processing of the front camera of the full screen, the position of the camera is set aside on the front panel, such as a bang screen, a water drop screen, a hole digging screen and the like, the camera is hidden by adopting a lifting structure, the display of the screen of the front camera lacks integrity, the terminal of the rear camera looks thick and heavy, and the consistency of the terminal is reduced by the lifting structure. Therefore, the 'under-screen camera technology' comes into play. The camera technique under the screen indicates under the prerequisite of not destroying screen integrality, can realize the full screen display and show, just indicates that the setting of leading camera is under the screen, and the screen display divides into two parts: the camera area under the screen is used for displaying pictures when the camera is closed, so that full-screen display is realized, and a camera shooting function is realized when the camera is opened.

However, although the camera can be hidden under the screen, this also can lead to setting up the regional unable quilt that the camera corresponds on the display screen and lighting up and showing, consequently also can't realize true comprehensive screen yet, has seriously influenced user experience.

Therefore, the display module and the display device based on the screen lower camera can meet the urgent need of the current real full screen, further improve the screen occupation ratio and the display effect, and the technical problem to be solved by the technical personnel in the field is urgently needed.

Disclosure of Invention

In view of this, the invention provides a display module and a display device, so as to solve the problem that in the prior art, due to the objective requirement of a camera under a screen, the screen cannot really realize a full screen, and user experience is easily affected.

The invention discloses a display module, comprising: the display panel is positioned on one side of the light-emitting surface of the backlight module; the display module comprises a hollow part, the hollow part at least penetrates through the backlight module along a direction perpendicular to a light-emitting surface of the display module, and a photosensitive element is arranged in the hollow part; the display module further comprises a light supplementing assembly, the light supplementing assembly comprises a light guide film and a plurality of light supplementing lamps, and the light guide film is arranged around the hollow part; a shading adhesive tape is arranged between the display panel and the backlight module, the shading adhesive tape is arranged around the hollow part, and the light guide film is positioned on one side of the shading adhesive tape close to the display panel; the light emitting surface of the light supplementing lamp faces the light incident surface of the light guide film, and the light emitting surface of the light guide film faces the display panel.

Based on the same invention concept, the invention also discloses a display device which comprises the display module.

Compared with the prior art, the display module and the display device provided by the invention at least realize the following beneficial effects:

the display module is of a camera structure under a screen, the display module comprises a hollow part, the hollow part at least penetrates through a backlight module along a direction perpendicular to a light-emitting surface of the display module, a photosensitive element is fixedly arranged in the hollow part, a shading adhesive tape is arranged between a display panel and the backlight module at the position of the hollow part, the shading adhesive tape is arranged between the display panel and the backlight module in a fitting mode around the hollow part, the shading adhesive tape is used for fixing the display panel and the backlight module and has a shading effect, light of film materials such as a light guide plate and other optical films in the backlight module at the edge of the hollow part can be shielded, and the display effect of the position of the hollow part of the display module in a display state is improved. The display module is also provided with a light supplementing assembly comprising a light guiding film and a plurality of light supplementing lamps, wherein the light guiding film is arranged around the hollow part, in the direction vertical to the light emitting surface of the display module, the light guiding film is positioned at one side of the shading adhesive tape close to the display panel, the light emitting surface of the light supplementing lamps faces the light incident surface of the light guiding film, and the light emitting surface of the light guiding film faces the display panel, so that in the display mode of the display module, the light supplementing lamps are turned on to enable the positions of the hollow parts to be light-transmitting (and in the non-display mode, namely the photographing mode, the light supplementing lamps are in the off state), the display problem of the area where the hollow parts are positioned is improved, meanwhile, the point light sources of the light supplementing lamps can be changed into surface light sources through the light guiding effect of the light guiding film, the frame area of the hollow parts where the shading adhesive tape is positioned can also have the light source light incident to the display panel, and further the frame area of the hollow parts where the shading adhesive tape is positioned can also be displayed, therefore, the problem of light supplement of the camera under the screen is solved, light supplement can be further performed on the area where the shading adhesive tape is located, the problem that the position of the shading adhesive tape cannot be really displayed is solved, and the full-screen is really realized.

Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic plan view of a display module according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A' of FIG. 1;

FIG. 3 is a partially enlarged view of the area B in FIG. 2;

FIG. 4 is a schematic view of another cross-sectional structure taken along line A-A' of FIG. 1;

fig. 5 is a schematic plan view illustrating another display module according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line C-C' of FIG. 5;

FIG. 7 is a schematic view of another planar structure of a display module according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view taken along line E-E' of FIG. 7;

fig. 9 is a schematic plan view of another display module according to an embodiment of the invention;

FIG. 10 is a schematic sectional view along the direction F-F' in FIG. 9;

fig. 11 is a schematic view of a connection structure between a fill-in light and a flexible circuit board according to an embodiment of the present invention;

fig. 12 is a schematic view of a partially enlarged structure of a plurality of fill-in lamps surrounding a hollow portion according to an embodiment of the invention;

fig. 13 is a schematic plan view of a display device according to an embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic plan view of a display module according to an embodiment of the present invention, fig. 2 is a schematic sectional view taken along a direction a-a' in fig. 1, and a display module 000 according to the present embodiment includes: the backlight module 10 (not filled in the figure) and the display panel 20 (not filled in the figure) are oppositely arranged, and the display panel 20 is positioned on one side of the light emitting surface 10E of the backlight module 10; optionally, the display panel 20 is a liquid crystal display panel;

the display module 000 comprises a hollow part 30, the hollow part 30 at least penetrates through the backlight module 10 along a direction Z perpendicular to a light-emitting surface of the display module 000, and a photosensitive element 40 is arranged in the hollow part 30;

the display module 000 further includes a light supplement assembly 50, the light supplement assembly 50 includes a light guide film 501 and a plurality of light supplement lamps 502, and the light guide film 501 is disposed around the hollow portion 30;

a light shielding tape 60 is arranged between the display panel 20 and the backlight module 10, the light shielding tape 60 is arranged around the hollow part 30, and the light guide film 501 is positioned on one side of the light shielding tape 60 close to the display panel 20;

the light emitting surface 502E of the light supplement lamp 502 faces the light incident surface 501A of the light guiding film 501, and the light emitting surface 501E of the light guiding film 501 faces the display panel 20.

Specifically, the display module 000 of the embodiment is a camera structure under a screen, the display panel 20 is located on one side of the light emitting surface 10E of the backlight module 10, the display module 000 includes a hollow portion 30, the hollow portion 30 at least penetrates through the backlight module 10 along a direction Z perpendicular to the light emitting surface of the display module 000, the photosensitive element 40 is fixedly disposed in the hollow portion 30, and the optional photosensitive element 40 may be a camera assembly or a photosensor and other devices. In this embodiment, the light-shielding tape 60 is disposed between the display panel 20 and the backlight module 10 at the position of the hollow portion 30, the light-shielding tape 60 is disposed around the hollow portion 30 and attached between the display panel 20 and the backlight module 10, the light-shielding tape 60 is generally a double-sided tape and employs a black light-shielding tape, which cannot pass light, the light-shielding tape 60 is used to fix the display panel 20 and the backlight module 10, and has a light-shielding effect, which can shield light rays at the edge of the hollow portion 30 from the light guide plate 101 and other optical films (the brightness enhancement film 102, the diffusion film 103, and the reflection film 104) in the backlight module 10 shown in fig. 2, and improve the display effect at the position of the hollow portion 30 of the display module 000 in the display state.

The working mode of the display module 000 of the embodiment may include a display mode and a non-display mode, for example, the photosensitive element 40 is a camera assembly, the camera assembly works to shoot in the non-display mode, and in the display mode, the photosensitive element 40 of the camera assembly does not work, the display module 000 displays a picture, but at this time, due to the existence of the light-shielding tape 60 at the position of the hollow portion 30, it is easy to make the frame area of the hollow portion 30 where the light-shielding tape 60 is located difficult for backlight light to enter the display panel 20, so that the area cannot be displayed, although the space area occupied by the light-shielding tape 60 at the hollow portion 30 is small, the display effect of the full-screen is also easily affected.

In order to solve the problem that the frame area of the hollow portion 30 where the light-shielding tape 60 of the display module 000 is located in the display mode cannot be displayed, the display module 000 of the embodiment sets the light-compensating assembly 50, wherein the light-compensating assembly 50 includes a light-guiding film 501 and a plurality of light-compensating lamps 502, the light-guiding film 501 is disposed around the hollow portion 30, optionally, the light-guiding film 501 may be disposed around the hollow portion 30 in a track shape (as shown in fig. 1), and in a direction Z perpendicular to the light-emitting surface of the display module 000, the light-guiding film 501 is located on one side of the light-shielding tape 60 close to the display panel 20 (as shown in fig. 2). It can be understood that the light guiding film 501 of the present embodiment is located on the side of the light shielding tape 60 close to the display panel 20, i.e. between the backlight module 10 and the display panel 20, and has a different shape structure from the light guiding plate 101 included in the backlight module 10 itself, but the light guiding film 501 has a guiding function on light, which is substantially the same as the function of the light guiding plate 101 included in the backlight module 10 itself. In this embodiment, the light emitting surface 502E of the light supplement lamp 502 faces the light incident surface 501A of the light guide film 501, and the light emitting surface 501E of the light guide film 501 faces the display panel 20, so that the light supplement lamp 502 is turned on to enable the hollow portion 30 to pass light (and the light supplement lamp 502 is turned off in the non-display mode, i.e. the photographing mode), in the display mode of the display module 000, to improve the display problem of the area where the hollow portion 30 is located, and at the same time, the light source of the light supplement lamp 502 is changed into a surface light source by the feature that the light guide film 501 has the same function as the light guide plate 101 included in the backlight module 10 (also having a dot structure), so that the frame area of the hollow portion 30 where the light shielding tape 60 is located can also have light source light incident on the display panel 20, and further the frame area of the hollow portion 30 where the light shielding tape 60 is located can also be displayed, thereby solving the camera head under the screen problem, light can be further supplemented to the area where the shading adhesive tape 60 is located, the problem that the position of the shading adhesive tape 60 cannot be really displayed is solved, and the full-screen display is favorably realized.

Optionally, when the display module 000 of this embodiment is manufactured, before the backlight module 10 and the display panel 20 are assembled, the light-shielding tape 60 may be disposed at the position of the hollow portion 30 of the backlight module 10, and then the racetrack-shaped light-guiding film 501 and the light-compensating lamp 502 in the light-compensating module 50 are assembled on the light-shielding tape 60 at the position of the hollow portion 30, so that the racetrack-shaped light-guiding film 501 surrounds the hollow portion 30 in the same manner and shape as the light-shielding tape 60, further optionally, in a direction X parallel to the light-emitting surface of the display module 000, the width of the light-shielding tape 60 and the width of the light-guiding film 501 may be the same, the light-emitting surface 502E of the light-compensating lamp 502 faces the light-entering surface 501A of the light-guiding film 501, the light-emitting surface 501E of the light-guiding film 501 is far away from the light-shielding tape 60, and finally the backlight module 10 and the display panel 20 are assembled.

When the display module 000 is in a non-display mode (e.g., a photographing mode), the light sensing element 40 is operated, and the light supplement lamp 502 of the light supplement assembly 50 is not operated; when the display module 000 is in the display mode, the photographing mode is turned off, the photosensitive element 40 does not work, the light supplement lamp 502 can emit light under the driving of a Flexible Circuit board 5020(FPC, Flexible Printed Circuit, the light supplement lamp 502 can be welded on the FPC by the way of SMT for the LED chip directly) which is electrically connected with the light supplement lamp, and the light supplement lamp is guided by the light guide film 501 to be used as a light supplement backlight source required at the position of the light shielding adhesive tape 60, so that full-screen display is realized. In this embodiment, the space between the photosensitive element 40 and the display panel 20 is fully utilized, as shown in fig. 2, in a general setting, as shown in fig. 2, the width L1 of the gap between the photosensitive element 40 and the backlight module 10 in the hollow portion 30 is usually greater than 0.25mm, the fill light 502 may be an LED chip, and the size is generally: the length is 0.5mm, the width is 0.15mm, thickness L2 is 0.1mm, thickness L3 of the flexible circuit board 5020 that is electrically connected with it is generally about 0.07mm, total thickness L2+ L3 of the light filling lamp 502 including the flexible circuit board 5020 is about 0.17mm, 0.17mm is far less than L1(0.25mm), therefore the light filling lamp 502 including the flexible circuit board 5020 can be directly placed in the gap between the photosensitive element 40 and the backlight module 10 in the hollow part 30, so that the light filling module 50 can be used in the display module 000 of the camera under the screen, and the full-screen display effect can be better realized and improved.

It should be noted that fig. 1 and fig. 2 of the present embodiment only schematically illustrate that the shape of the hollow portion 30 may be a circle, but is not limited to this shape, and the shape of the hollow portion 30 may also be other shapes, and the present embodiment is not limited herein. In this embodiment, the fixing connection manner of the photosensitive element 40 and the backlight module 10 is not specifically limited, and the photosensitive element 40 and the backlight module 10 may be directly fixed to the bezel or the back plate 105 of the backlight module 10 through the substrate 401 of the photosensitive element 40, or the photosensitive element 40 and the bezel of the backlight module 10 may be fixed by gluing (not shown in the drawings), at this time, the glue may be located in the hollow portion 30, the glue may also be used as a fixing carrier of the light supplement lamp 502, and in specific implementation, the glue may be selectively set according to actual requirements, and only needs to satisfy the effect of fixing the photosensitive element 40 and the backlight module 10. The specific structures of the backlight module 10 and the display panel 20 in this embodiment are not limited to the above structures, and may be understood with reference to the structures of the liquid crystal display device in the related art, for example, the backlight module 10 may further include optical films such as a backlight source, a light guide plate, a brightness enhancement film, and a reflector, and the display panel 20 may include an array substrate and a color film substrate that are arranged oppositely, and a liquid crystal layer located between the array substrate and the color film substrate, which are not described herein again.

It should be further noted that the thickness of the light guiding film 501 illustrated in fig. 2 of this embodiment does not represent the thickness in actual implementation, and fig. 2 is only to illustrate the structure of the light supplement assembly 50 clearly, and the thickness of the light guiding film 501 is enlarged, and in actual implementation, the thickness and the size occupied by the light supplement assembly 50 in the display module 000 are small, and the overall thickness of the display module 000 is not affected, that is, the arrangement of the light guiding film 501 has almost no influence on the thinned design of the display module 000.

The number of the light supplement lamps 502 arranged in the light supplement assembly 50 is not specifically limited in this embodiment, four light supplement lamps 502 can be arranged around the hollow-out portion 30 as shown in fig. 1, the light emitting surfaces 502E of the four light supplement lamps 502 face the light incident surface 501A of the light guide film 501, three or more structures can be adopted, only the requirement that the light supplement effect can be achieved in the frame region of the light shading tape 60 by the light guide films 501 in the shapes of a plurality of light supplement lamps 502 and a runway needs to be met in the display mode, the problem that the position of the light shading tape 60 cannot be really displayed is solved, a complete screen can be really achieved, and the embodiment is not specifically limited.

It can be understood that fig. 1 and fig. 2 of the present embodiment only show the number, the arrangement position, and the shape of the light guiding film 501 and the light supplementing lamps 502 by way of example, in a specific implementation, the number, the arrangement position, and the shape of the light guiding film 501 and the light supplementing lamps 502 of the light supplementing assembly 50 include, but are not limited to, the light guiding film 501 of fig. 2 is a sheet-shaped structure arranged between the light shielding tape 60 and the display panel 20, and other implementation structures can also be adopted, only the light emitting surface 501E of the light guiding film 501 needs to face the display panel 20, and the light emitting surfaces 502E of the light supplementing lamps 502 all face the light incident surface 501A of the light guiding film 501, so that a light supplementing surface light source can be formed in the region where the light shielding tape 60 is located through the light emitting surface 501E of the light guiding film 501.

In some optional embodiments, please refer to fig. 1-2 and fig. 3 in combination, and fig. 3 is a schematic view of a partially enlarged structure of a region B in fig. 2, in this embodiment, the light guiding film 501 of the light supplement component 50 is a sheet-shaped structure, and the light supplement lamp 502 is located on one side of the light guiding film 501 close to the hollow portion 30 along a direction X parallel to the light emitting surface of the display module 000.

The present embodiment explains that the light guiding film 501 of the light supplementing assembly 50 may be a film having a sheet structure, and is attached to the side of the light shielding tape 60 facing the display panel 20, and at this time, the plurality of light supplementing lamps 502 disposed around the hollow portion 30 may be disposed on the side of the light guiding film 501 close to the hollow portion 30 along the direction X parallel to the light emitting surface of the display module 000, and optionally, the light supplementing lamps 502 and the light guiding film 501 are substantially flush in the direction X parallel to the light emitting surface of the display module 000, so that the light emitting surface 502E of the light supplementing lamps 502 faces the light incident surface 501A of the light guiding film 501, that is, the light incident surface 501A of the light guiding film 501 is a side surface of itself, and the light emitting surface 501E of the light guiding film 501 is an upper surface of the light guiding film 501 itself facing the display panel 20, so that the edge position region of the hollow portion 30 where the light shielding tape 60 is located can be normally displayed through the light guiding actions of the light supplementing lamps 502 and the light guiding film 501, the comprehensive screen effect is better realized.

Optionally, please refer to fig. 1-3, in a direction Z perpendicular to the light emitting surface of the display module 000, the thickness of the light guiding film 501 is D1, the width of the light supplement lamp 502 is D2, and D1 is not less than D2. That is, when the light guiding film 501 is a film with a sheet-shaped structure, the thickness D1 of the light guiding film in the direction Z perpendicular to the light emitting surface of the display module 000 is greater than or equal to the width D2 of the light supplementing lamp 502 in the direction Z perpendicular to the light emitting surface of the display module 000 (fig. 2 and 3 illustrate that D1 is greater than D2), so that the light emitted from the light emitting surface 502E of the light supplementing lamp 502 is prevented from being emitted to the region outside the light guiding film 501, the light entering the light incident surface 501A of the light guiding film 501 is as much as possible, the light utilization rate of the light supplementing lamp 502 is improved, and the light supplementing display effect of the edge region of the hollow portion 30 is improved.

In some alternative embodiments, please refer to fig. 1 and fig. 4 in combination, fig. 4 is a schematic cross-sectional view along the direction a-a' in fig. 1, in which the photosensitive element 40 is fixedly connected to the display module 000 through the first adhesive layer 70, and at least a portion of the first adhesive layer 70 is located between the display panel 20 and the photosensitive element 40;

along the direction X parallel to the light emitting surface 000 of the display module, one side of the first adhesive layer 70 facing the light guiding film 501 is fixedly attached to the light compensating lamp 502.

This embodiment explains that the light guiding film 501 of the light compensating assembly 50 may be a film with a sheet structure, and is attached to the side of the light shielding tape 60 facing the display panel 20, at this time, the plurality of light compensating lamps 502 surrounding the hollow portion 30 may be disposed on the side of the light guiding film 501 close to the hollow portion 30 along the direction X parallel to the light emitting surface of the display module 000, the photosensitive element 40 may be fixedly connected to the display module 000 through the first adhesive layer 70, that is, at least a portion of the first adhesive layer 70 is filled in the gap between the display panel 20 and the photosensitive element 40, at this time, as shown in fig. 4, along the direction X parallel to the light emitting surface of the display module 000, a concave portion 701 corresponding to the light filling lamp 502 can be formed on one side of the first adhesive layer 70 facing the light guiding film 501, make light filling lamp 502 can be fixed with the laminating of first glue film 70 in this depressed part 701 to can be favorable to guaranteeing the steadiness of light filling lamp 502.

In some optional embodiments, please refer to fig. 5 and 6 in combination, fig. 5 is another schematic plan structure diagram of a display module according to an embodiment of the present invention, fig. 6 is a schematic cross-sectional structure diagram along the direction C-C' in fig. 5 (it can be understood that, in order to clearly illustrate the structure of the light compensation module of the present embodiment, the light compensation module in fig. 5 is filled with transparency), in a display module 000 provided in the present embodiment, the light guiding film 501 includes a first sub-portion 5011 and a second sub-portion 5012 connected to each other, an extending direction of the first sub-portion 5011 is parallel to a light emitting surface of the display module 000, and the first sub-portion 5011 is located between the light shielding tape 60 and the display panel 20;

in the direction Z perpendicular to the light emitting surface of the display module 000, the second sub-portion 5012 is located on a side of the first sub-portion 5011 away from the display panel 20, and the extending direction of the second sub-portion 5012 intersects with the light emitting surface of the display module 000; optionally, the extending direction of the second sub-portion 5012 is perpendicular to the light emitting surface of the display module 000;

the light supplement lamp 502 is located on a side of the second sub-portion 5012 away from the first sub-portion 5011, and a light emitting surface 502E of the light supplement lamp 502 faces an end of the second sub-portion 5012 away from the first sub-portion 5011.

The embodiment explains that the structure of the light guiding film 501 may also be a T-shaped form (as shown in fig. 6, a cross section of the light guiding film 501 in a direction Z perpendicular to the light emitting surface of the display module 000 is a T-shaped structure) or an L-shaped form (not shown in the drawings) arranged around the hollow portion 30, specifically, the light guiding film 501 includes a first sub-portion 5011 and a second sub-portion 5012 connected with each other, an extending direction of the first sub-portion 5011 is parallel to the light emitting surface of the display module 000, and an extending direction of the second sub-portion 5012 intersects with the light emitting surface of the display module 000, optionally, the first sub-portion 5011 and the second sub-portion 5012 connected with each other may be the light guiding film 501 integrally formed, which is beneficial to improving the overall connection effect and the process efficiency of the light guiding film. In this embodiment, taking the extending direction of the second sub-portion 5012 and the light-emitting surface of the display module 000 as an example of being perpendicular to each other, in the direction Z perpendicular to the light-emitting surface of the display module 000, the second sub-portion 5012 is located on the side of the first sub-portion 5011 away from the display panel 20, and the first sub-portion 5011 is located between the light-shielding tape 60 and the display panel 20, so that the light guiding film 501 includes two portions along the direction X parallel to the light-emitting surface of the display module 000 and along the direction Z perpendicular to the light-emitting surface of the display module 000, the light supplementing lamp 502 is located on the side of the second sub-portion 5012 away from the first sub-portion 5011 in the direction Z perpendicular to the light-emitting surface of the display module 000, the light-emitting surface 502E of the light supplementing lamp 502 faces the end of the second sub-portion 5012 away from the first sub-portion 5011, and the forward projection of the light supplementing lamp 502 to the light-emitting surface of the display module 000 is located in the range of the forward projection of the light guiding film 501 to the display module 000, thereby be favorable to reducing the whole display module assembly 000's that occupies of light filling subassembly 50 space, and then can avoid setting up of light filling subassembly 50 to influence the effect of photosensitive element 40.

It should be understood that fig. 5 and fig. 6 of the present embodiment only illustrate the light guiding film 501 (i.e. the light guiding film 501 formed by the first sub-portion 5011 and the second sub-portion 5012 connected to each other has a T-shaped cross section in the direction Z perpendicular to the light emitting surface of the display module 000), the light guiding film 501 includes but is not limited to the shape shown in fig. 6, and may also include other shapes, only in the direction Z perpendicular to the light emitting surface of the display module 000, the second sub-portion 5012 is located on the side of the first sub-portion 5011 away from the display panel 20, the light guiding film 501 includes two portions along the direction X parallel to the light emitting surface of the display module 000 and along the direction Z perpendicular to the light emitting surface of the display module 000, the normal projection of the light filling lamp 502 to the light emitting surface of the display module 000 is located in the range of the normal projection of the light guiding film 501 to the light emitting surface of the display module 000, so as to reduce the space occupied by the light sensing element 40, this embodiment is not described herein.

Optionally, with continued reference to fig. 5 and fig. 6, the backlight module 10 includes a sealant 106 disposed around the hollow portion 30, a groove 1061 is disposed on a side of the sealant 106 facing the display panel 20, and a surface of the sealant 106 close to the display panel 20 is recessed in a direction away from the display panel 20 to form the groove 1061;

the second sub-portion 5012 and the light supplement lamp 502 are fitted into the groove 1061.

This embodiment explains a structure in which the light guiding film 501 is formed of the first and second subsections 5011 and 5012 connected to each other, the second sub-portion 5012 of the light guiding film 501, which is located on the side of the first sub-portion 5011 away from the display panel 20, can be embedded in the sealant 106 of the backlight module 10, since the light supplement lamp 502 is located on a side of the second sub-portion 5012 away from the first sub-portion 5011, and the light emitting surface 502E of the light supplement lamp 502 faces to an end of the second sub-portion 5012 away from the first sub-portion 5011, the light supplement lamp 502 can also be embedded in the sealant 106 of the backlight module 10, that is, the backlight module 10 includes the sealant 106 surrounding the hollow portion 30, the sealant 106 is used to encapsulate and fix the back plate or the bezel, the optical film, etc. of the backlight module 10 around the edge of the hollow portion 30 within the hollow portion 30, the sealant 106 can also block the side light, so as to prevent the light of the backlight module 10 from affecting the use effect of the photosensitive element 40. A groove 1061 is disposed on a side of the sealant 106 facing the display panel 20, and the groove 1061 is formed by recessing a surface of the sealant 106 close to the display panel 20 in a direction away from the display panel 20. The second sub-portion 5012 and the light supplement lamp 502 are both embedded in the groove 1061, so that the light supplement lamp 502 and the second sub-portion 5012 do not occupy the space of the hollow portion 30 as much as possible, and the light supplement lamp 502 and the second sub-portion 5012 are prevented from being arranged to affect the use effect of the light sensing element 40.

Optionally, as shown in fig. 5 and fig. 6, the light shielding tape 60 of the present embodiment is fixedly attached to the first sub-portion 5011, that is, the surface of the light shielding tape 60 facing the display panel 20 is fixedly attached to the surface of the first sub-portion 5011 away from the display panel 20, because the second sub-portion 5012 is embedded in the groove 1061 of the frame rubber 106, and the frame rubber 1061 has a light shielding effect, the light shielding tape 60 may not be disposed on the second sub-portion 5012 of the light guiding film 501, and the light shielding tape 60 only needs to be fixedly attached to the first sub-portion 5011 to satisfy the light shielding effect of the area, which can also simplify the difficulty of the attaching process of the light shielding tape 60, and prevent the light guiding film 501 from affecting the attaching process of the light shielding tape 60 when the light guiding film 501 is formed by the first sub-portion 5011 and the second sub-portion 5012 which are connected to each other, thereby facilitating the improvement of the efficiency of the attaching process of the light shielding tape 60.

In some alternative embodiments, please refer to fig. 7 and 8 in combination, fig. 7 is another schematic plan structure diagram of a display module according to an embodiment of the present invention, fig. 8 is a schematic cross-sectional structure diagram along the direction of E-E' in fig. 7 (it can be understood that, for clarity, the structure of the light compensation module of the present embodiment is illustrated, the light compensation module and the photosensitive element in fig. 7 are filled with transparency), in a display module 000 provided in the present embodiment, the light guiding film 501 includes a first sub-portion 5011 and a second sub-portion 5012 connected to each other, an extending direction of the first sub-portion 5011 is parallel to a light emitting surface of the display module 000, and the first sub-portion 5011 is located between the light shielding tape 60 and the display panel 20;

in the direction Z perpendicular to the light emitting surface of the display module 000, the second sub-portion 5012 is located on a side of the first sub-portion 5011 away from the display panel 20, and the extending direction of the second sub-portion 5012 intersects with the light emitting surface of the display module 000; optionally, the extending direction of the second sub-portion 5012 is perpendicular to the light emitting surface of the display module 000;

the light supplement lamp 502 is located on a side of the second sub-portion 5012 away from the first sub-portion 5011, and a light emitting surface 502E of the light supplement lamp 502 faces an end of the second sub-portion 5012 away from the first sub-portion 5011.

The backlight module 10 includes a sealant 106 surrounding the hollow portion 30, and the second sub-portion 5012 is located on one side of the sealant 106 close to the hollow portion 30 along a direction X parallel to the light emitting surface 000 of the display module, and the light supplement lamp 502 is fixed to the sealant 106. Optionally, at this time, a side surface of the light shielding tape 60 facing the display panel 20 is attached and fixed to the first sub-portion 5011, the light sensing element 40 may be fixedly connected to the display module 000 through the first adhesive layer 70, at least a portion of the first adhesive layer 70 is located between the display panel 20 and the light sensing element 40, and the light supplement lamp 502 may be embedded in the first adhesive layer 70 to achieve fixing.

The embodiment explains that the structure of the light guiding film 501 may also be an L-shaped configuration disposed around the hollow portion 30 (as shown in fig. 8, the cross section of the light guiding film 501 in the direction Z perpendicular to the light emitting surface of the display module 000 is an L-shaped configuration), specifically, the light guiding film 501 includes a first sub-portion 5011 and a second sub-portion 5012 connected with each other, the extending direction of the first sub-portion 5011 is parallel to the light emitting surface of the display module 000, and the extending direction of the second sub-portion 5012 intersects with the light emitting surface of the display module 000, optionally, the first sub-portion 5011 and the second sub-portion 5012 connected with each other may be the light guiding film 501 integrally formed, which is beneficial to improving the overall connection effect and the process efficiency of the light guiding film 501. In the embodiment, taking the extending direction of the second sub-portion 5012 and the light-emitting surface of the display module 000 as an example of being perpendicular to each other, in the direction Z perpendicular to the light-emitting surface of the display module 000, the second sub-portion 5012 is located on the side of the first sub-portion 5011 away from the display panel 20, the first sub-portion 5011 is located between the light-shielding tape 60 and the display panel 20, and one end of the second sub-portion 5012 is connected to one end of the first sub-portion 5011, so that the cross sections of the first sub-portion 5011 and the second sub-portion 5012 of the light guiding film 501 in the direction Z perpendicular to the light-emitting surface of the display module 000 are L-shaped, the light guiding film 501 includes two portions in the direction X parallel to the light-emitting surface of the display module 000 and in the direction Z perpendicular to the light-emitting surface of the display module 000, the light supplementing lamp 502 is located on the side of the second sub-portion 5012 away from the first sub-portion 5011 in the direction Z perpendicular to the light-emitting surface of the display module 000, and the light-emitting surface 502E of the light-supplementing lamp 502 faces the second sub-portion 2 away from the end of the first sub-portion 5011, the light supplementing lamp 502 can be located in the range of the orthographic projection of the light guiding film 501 to the light emitting surface of the display module 000 to the orthographic projection of the light emitting surface of the display module 000, so that the space of the display module 000 occupied by the light supplementing assembly 50 is favorably reduced, and the effect of the photosensitive element 40 is prevented from being influenced by the arrangement of the light supplementing assembly 50. The backlight module 10 of the present embodiment includes the sealant 106 disposed around the hollow portion 30, the sealant 106 is used for encapsulating and fixing the back plate, the bezel, the optical film, and the like of the backlight module 10 around the edge of the hollow portion 30 within the hollow portion 30, and the sealant 106 can also function to block the side light, so as to prevent the light of the backlight module 10 from affecting the use effect of the photosensitive element 40. Along the direction X parallel to the light-emitting surface of the display module 000, the second sub-portion 5012 is located on one side of the frame adhesive 106 close to the hollow portion 30, the light supplement lamp 502 is fixedly attached to the frame adhesive 106, that is, the end portion of the second sub-portion 5012 far away from the first sub-portion 5011 is used as the light-emitting surface 501A of the light guide film 501, one side of the first sub-portion 5011 close to the display panel 20 is the light-emitting surface 501E, and light emitted from the light-emitting surface 502E of the light supplement lamp 502 is guided by the second sub-portion 5012 of the light guide film 501 to be transmitted to the first sub-portion 5011 of the light guide film 501, so that the area where the light-shielding tape 60 is located can be normally displayed, and a better full-screen display effect can be achieved.

In some optional embodiments, please refer to fig. 9 and 10 in combination, fig. 9 is another schematic plan structure diagram of a display module according to an embodiment of the present invention, fig. 10 is a schematic cross-sectional structure diagram along direction F-F' in fig. 9 (it can be understood that, for clarity, the structure of the light compensation module of the present embodiment is illustrated, the light compensation module and the photosensitive element in fig. 9 are filled with transparency), in a display module 000 provided in the present embodiment, the light guiding film 501 includes a first sub-portion 5011 and a second sub-portion 5012 connected to each other, an extending direction of the first sub-portion 5011 is parallel to a light emitting surface of the display module 000, and the first sub-portion 5011 is located between the light shielding tape 60 and the display panel 20;

in the direction Z perpendicular to the light emitting surface of the display module 000, the second sub-portion 5012 is located on a side of the first sub-portion 5011 away from the display panel 20, and the extending direction of the second sub-portion 5012 intersects with the light emitting surface of the display module 000; optionally, the extending direction of the second sub-portion 5012 is perpendicular to the light emitting surface of the display module 000;

the light supplement lamp 502 is located on one side of the second sub-part 5012 away from the first sub-part 5011, and a light emitting surface 502E of the light supplement lamp 502 faces the end of the second sub-part 5012 away from the first sub-part 5011;

the backlight module 10 includes a back plate 105 and a plurality of optical films, the optical films may be a light guide plate 101, a brightness enhancement sheet 102, a diffusion sheet 103, a reflection sheet 104, etc., the back plate 105 may be an iron frame structure for forming a space for accommodating at least the optical films;

the backlight module 10 further includes a sealant 106 disposed around the hollow portion 30, and the sealant 106 is fixed to the back plate 105;

along the direction X parallel to the light-emitting surface of the display module 000, the second sub-portion 5012 is located on one side of the sealant 106 away from the hollow portion 30, the back plate 105 is provided with a through hole 1051, and the light supplement lamp 5012 is disposed in the through hole 1051.

The embodiment explains that the structure of the light guiding film 501 may also be a T-shaped configuration disposed around the hollow portion 30 (as shown in fig. 10, the cross section of the light guiding film 501 in the direction Z perpendicular to the light emitting surface of the display module 000 is a T-shaped configuration), specifically, the light guiding film 501 includes a first sub-portion 5011 and a second sub-portion 5012 connected with each other, the extending direction of the first sub-portion 5011 is parallel to the light emitting surface of the display module 000, and the extending direction of the second sub-portion 5012 intersects with the light emitting surface of the display module 000, optionally, the light guiding film 501 formed by integrally forming the first sub-portion 5011 and the second sub-portion 5012 connected with each other is beneficial to improving the overall connection effect and the process efficiency of the light guiding film. In this embodiment, taking the extending direction of the second sub-portion 5012 and the light-emitting surface of the display module 000 as an example of being perpendicular to each other, in the direction Z perpendicular to the light-emitting surface of the display module 000, the second sub-portion 5012 is located on the side of the first sub-portion 5011 away from the display panel 20, and the first sub-portion 5011 is located between the light-shielding tape 60 and the display panel 20, so that the light guiding film 501 includes two portions along the direction X parallel to the light-emitting surface of the display module 000 and along the direction Z perpendicular to the light-emitting surface of the display module 000, the light supplementing lamp 502 is located on the side of the second sub-portion 5012 away from the first sub-portion 5011 in the direction Z perpendicular to the light-emitting surface of the display module 000, the light-emitting surface 502E of the light supplementing lamp 502 faces the end of the second sub-portion 5012 away from the first sub-portion 5011, and the forward projection of the light supplementing lamp 502 to the light-emitting surface of the display module 000 is located in the range of the forward projection of the light guiding film 501 to the display module 000, thereby be favorable to reducing the whole display module assembly 000's that occupies of light filling subassembly 50 space, and then can avoid setting up of light filling subassembly 50 to influence the effect of photosensitive element 40.

The backlight module of this embodiment includes a back plate 105, and further includes a sealant 106 disposed around the hollow portion 30, the sealant 106 is fixed to the back plate 105, the back plate 105 and the sealant 106 form a space for accommodating an optical film, wherein along a direction X parallel to a light-emitting surface 000 of the display module, the second sub-portion 5012 is located on a side of the sealant 106 away from the hollow portion 30, the back plate 105 is provided with a through hole 1051, and the light filling lamp 5012 is disposed in the through hole 1051, so that the second sub-portion 5012 of the light guiding film 501 can be prevented from occupying the space of the sealant 106, the light filling lamp 501 is disposed in the bottom through hole 1051 of the back plate 105, the sealant 106 can be disposed in the direction X parallel to the light-emitting surface 000 of the display module, the sealant 106 is narrower, which is beneficial to reducing the width of a frame in the hollow portion 30 area, and better full-screen display can be achieved.

Optionally, the light supplement lamp 502 is connected to a flexible circuit board 5020, and the flexible circuit board 5020 is attached to one side of the back plate 105 far away from the display panel 20. Light filling lamp 502 passes through SMT's mode welding on flexible circuit board 5020, and light filling lamp 502 is luminous under the integrated drive circuit in flexible circuit board 5020, and this embodiment sets up light filling lamp 5012 in through-hole 1051 of backplate 105, and one side laminating that display panel 20 was kept away from to flexible circuit board 5020 and backplate 105 can make flexible circuit board 5020 have with the great laminating area of backplate 105, be favorable to strengthening the fixed effect of light filling lamp 502.

Optionally, please refer to fig. 9-10 and 11, where fig. 11 is a schematic diagram of a connection structure of the light supplement lamp and the flexible circuit board according to an embodiment of the present invention, and an example is illustrated by taking the hollow portion 30 of the display module 000 of the present embodiment as a circle, when the light supplement lamp 502 of the present embodiment is manufactured, a plurality of light supplement lamps 502 of the LED chip may be mounted on the circular flexible circuit board 5020, and then the flexible circuit board 5020 is attached to the backlight module 000 of the prefabricated back plate 105 including the through hole 1051, so that the light supplement lamps 502 are located by the times of the through hole 1051, and the flexible circuit board 5020 is attached to the back plate 105 and fixed.

In some optional embodiments, please refer to fig. 9-11 and 12 in combination, fig. 12 is a schematic view of a partial enlarged structure of a plurality of light supplement lamps surrounding a hollow portion according to an embodiment of the present invention, in which a plurality of light supplement lamps 502 (for example, 4 light supplement lamps are shown in fig. 11, and 8 light supplement lamps are shown in fig. 12) of the light supplement assembly 50 in the present embodiment are disposed around the hollow portion 30, and a distance M between two adjacent light supplement lamps 502 is equal in a direction X parallel to a light exit surface of the display module 000.

The embodiment further explains that a plurality of light filling lamps 502 arranged on the flexible circuit board 5020 can be uniformly arranged around the hollow part 30, namely in the direction X parallel to the light emitting surface of the display module 000, the distance M between two adjacent light filling lamps 502 is equal (the distance M can be understood as the distance between the central points of two adjacent light filling lamps 502, and can also be the distance between the ends of two adjacent light filling lamps 502), thereby being beneficial to further improving the uniform light emitting effect of the light filling lamps 502, and further being beneficial to improving the light filling uniformity of the frame region where the light blocking adhesive tape 60 is located.

In some alternative embodiments, please continue to refer to fig. 9-10, in which the display panel 20 in the present embodiment includes a first display area AA1 and a second display area AA2 surrounding the first display area AA1, and a forward projection of the hollow portion 30 to the light-emitting surface of the display module 000 and a forward projection of the first display area AA1 to the light-emitting surface of the display module 000 are overlapped with each other.

The embodiment explains that the display area included in the display panel 20 is divided into two areas, namely, a first display area AA1 and a second display area AA2 arranged around the first display area AA1, wherein a forward projection of the first display area AA1 to the light-emitting surface of the display module 000 is overlapped with a forward projection of the hollow portion 30 to the light-emitting surface of the display module 000, that is, when the position of the hollow portion 30 is in a state where the photosensitive element 40 is not photographed, the light supplementing assembly 50 can be used as a supplementary backlight of a frame area where the light shielding tape 60 at the position of the hollow portion 30 is located through the light supplementing lamp 502 and the light guiding film 501 of the light supplementing assembly 50, so as to improve the display effect of the edge of the second display area AA2, and thus, the display is jointly performed through the first display area AA1 and the second display area AA2, so as to better realize a full-screen and improve the display effect of the full-screen.

In some optional embodiments, please refer to fig. 13, where fig. 13 is a schematic plane structure diagram of a display device according to an embodiment of the present invention, and the display device 111 according to this embodiment includes the display module 000 according to the above embodiment of the present invention. The embodiment of fig. 13 is only an example of a mobile phone, and the display device 111 is described, it is understood that the display device 111 provided in the embodiment of the present invention may be another display device 111 having a display function, such as a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. The display device 111 provided in the embodiment of the present invention has the beneficial effects of the display module 000 provided in the embodiment of the present invention, and specific descriptions of the display module 000 in the above embodiments may be specifically referred to, and this embodiment is not described herein again.

According to the embodiment, the display module and the display device provided by the invention at least realize the following beneficial effects:

the display module is of a camera structure under a screen, the display module comprises a hollow part, the hollow part at least penetrates through a backlight module along a direction perpendicular to a light-emitting surface of the display module, a photosensitive element is fixedly arranged in the hollow part, a shading adhesive tape is arranged between a display panel and the backlight module at the position of the hollow part, the shading adhesive tape is arranged between the display panel and the backlight module in a fitting mode around the hollow part, the shading adhesive tape is used for fixing the display panel and the backlight module and has a shading effect, light of film materials such as a light guide plate and other optical films in the backlight module at the edge of the hollow part can be shielded, and the display effect of the position of the hollow part of the display module in a display state is improved. The display module is also provided with a light supplementing assembly comprising a light guiding film and a plurality of light supplementing lamps, wherein the light guiding film is arranged around the hollow part, in the direction vertical to the light emitting surface of the display module, the light guiding film is positioned at one side of the shading adhesive tape close to the display panel, the light emitting surface of the light supplementing lamps faces the light incident surface of the light guiding film, and the light emitting surface of the light guiding film faces the display panel, so that in the display mode of the display module, the light supplementing lamps are turned on to enable the positions of the hollow parts to be light-transmitting (and in the non-display mode, namely the photographing mode, the light supplementing lamps are in the off state), the display problem of the area where the hollow parts are positioned is improved, meanwhile, the point light sources of the light supplementing lamps can be changed into surface light sources through the light guiding effect of the light guiding film, the frame area of the hollow parts where the shading adhesive tape is positioned can also have the light source light incident to the display panel, and further the frame area of the hollow parts where the shading adhesive tape is positioned can also be displayed, therefore, the problem of light supplement of the camera under the screen is solved, light supplement can be further performed on the area where the shading adhesive tape is located, the problem that the position of the shading adhesive tape cannot be really displayed is solved, and the full-screen is really realized.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.