阅读说明：本技术 一种显示装置及其制备方法 (Display device and preparation method thereof ) 是由 林友道 王志伟 沈柏平 于 2020-06-08 设计创作，主要内容包括：本发明公开了一种显示装置及其制备方法。该显示装置包括：背光模组、显示面板以及粘结所述背光模组和所述显示面板的粘结胶；所述背光模组包括胶框；所述胶框包括多个侧壁,多个所述侧壁围绕形成框架结构；所述侧壁靠近所述显示面板一侧的表面设置有凹槽结构；至少部分所述粘结胶位于所述凹槽结构内,能够增加粘结胶侧壁的粘结力,所述粘结胶在所述显示面板所在平面上的垂直投影位于所述侧壁在所述显示面板所在平面上的垂直投影内,能够防止溢胶。因此,该显示装置能够在实现窄边框的同时,提高显示装置的稳定性。(The invention discloses a display device and a preparation method thereof. The display device includes: the backlight module comprises a backlight module, a display panel and bonding glue for bonding the backlight module and the display panel; the backlight module comprises a rubber frame; the rubber frame comprises a plurality of side walls, and a frame structure is formed by the side walls in a surrounding mode; the surface of the side wall close to one side of the display panel is provided with a groove structure; at least part of the bonding glue is positioned in the groove structure, the bonding force of the side wall of the bonding glue can be increased, the vertical projection of the bonding glue on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel, and the glue overflow can be prevented. Therefore, the display device can realize a narrow frame and improve the stability of the display device.)

1. A display device, comprising: the backlight module comprises a backlight module, a display panel and bonding glue for bonding the backlight module and the display panel;

the backlight module comprises a rubber frame; the rubber frame comprises a plurality of side walls, and a frame structure is formed by the side walls in a surrounding mode;

the surface of the side wall close to one side of the display panel is provided with a groove structure;

at least part of the bonding glue is positioned in the groove structure, and the vertical projection of the bonding glue on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel.

2. The display device according to claim 1, wherein the sidewall comprises a sub-sidewall and a sidewall base; the sub side wall is positioned on one side of the side wall substrate close to the display panel, and the sub side wall and the side wall substrate surround the groove structure;

the sub-side wall and the side wall substrate are integrally formed;

alternatively, the sub-sidewalls are provided independently of the sidewall base.

3. The display device according to claim 1, wherein the side surface and/or the bottom surface of the groove structure comprises a convex structure or a concave structure.

4. The display device according to claim 1, wherein the groove structure in the side wall extends in a curved line or a broken line along the extension direction of the long side of the side wall.

5. The display device of claim 1, wherein the groove structures correspond one-to-one to the sidewalls.

6. The display device according to claim 5, wherein a plurality of the sidewalls are connected in sequence;

the groove structures positioned in the two side walls connected with each other are communicated with each other.

7. The display device according to claim 1, wherein the groove structure includes a plurality of sub-groove structures along an extending direction of a long side of the sidewall;

the side walls are connected in sequence; the plurality of sub-groove structures at least comprise first sub-groove structures positioned at the end parts of the side walls, and the first sub-groove structures positioned in the two side walls connected with each other are communicated with each other.

8. The display device as claimed in claim 1, wherein the depth d of the groove structure satisfies 1mm ≦ d ≦ 3 mm.

9. The display device according to claim 1, wherein a vertical projection of the groove structure on a plane of the display panel is located within a vertical projection of the side wall on the display panel, and a width W1 of the groove structure and a width W2 of the side wall satisfy 0.5W2 ≦ W1 ≦ 0.75W 2.

10. The display device according to claim 1, wherein a width of a side of the groove structure facing away from the display panel is larger than a width of a side of the groove structure facing towards the display panel.

11. The display device according to claim 10, wherein the groove structure has a trapezoidal cross-sectional shape, and a lower base angle of the trapezoidal shape is greater than or equal to 80 °.

12. The display device of claim 1, wherein the adhesive is a hot melt adhesive.

13. A method of manufacturing a display device, comprising:

providing a backlight module, wherein the backlight module comprises a rubber frame; the rubber frame comprises a plurality of side walls, and a frame structure is formed by the side walls in a surrounding mode;

preparing a groove structure on the surface of one side of the side wall close to the display panel;

preparing adhesive glue in the groove structure through a glue dispensing process, wherein the height of the adhesive glue is greater than or equal to the depth of the groove structure;

providing a display panel, and bonding the backlight module and the display panel through the bonding glue, wherein the vertical projection of the bonding glue on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel.

Technical Field

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

Background

A Liquid Crystal Display (LCD) is a Display that requires a backlight module to provide backlight for the LCD for displaying images, and as the Display requirements of customers increase, the overall screen is more and more favored by users with its excellent Display effect. The full-screen has a larger display area and a narrower bezel design, and the narrow bezel poses a great challenge to the stability of the display device.

Disclosure of Invention

The invention provides a display device and a preparation method thereof, which are used for improving the stability of the display device while realizing a narrow frame.

In a first aspect, an embodiment of the present invention provides a display device, including: the backlight module comprises a backlight module, a display panel and bonding glue for bonding the backlight module and the display panel;

the backlight module comprises a rubber frame; the rubber frame comprises a plurality of side walls, and a frame structure is formed by the side walls in a surrounding mode;

the surface of the side wall close to one side of the display panel is provided with a groove structure;

at least part of the bonding glue is positioned in the groove structure, and the vertical projection of the bonding glue on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel.

In a second aspect, embodiments of the present invention provide a method for manufacturing a display device, for manufacturing any one of the display devices provided in the first aspect; the method comprises the following steps:

providing a backlight module, wherein the backlight module comprises a rubber frame; the rubber frame comprises a plurality of side walls, and a frame structure is formed by the side walls in a surrounding mode;

preparing a groove structure on the surface of one side of the side wall close to the display panel;

preparing adhesive glue in the groove structure through a glue dispensing process, wherein the height of the adhesive glue is greater than or equal to the depth of the groove structure;

providing a display panel, and bonding the backlight module and the display panel through the bonding glue, wherein the vertical projection of the bonding glue on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel.

According to the technical scheme provided by the embodiment of the invention, the groove structure is arranged on the surface of the side wall close to one side of the display panel, at least part of the bonding glue is positioned in the groove structure, so that the bonding area between the bonding glue and the side wall can be increased, the bonding force between the bonding glue and the side wall is improved, the vertical projection of the bonding glue on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel, the risk of glue overflow is reduced, meanwhile, the width of the frame is not increased, and the narrow frame is realized. Therefore, the display device provided by the embodiment of the invention improves the bonding force between the backlight module and the display panel while realizing the narrow frame, namely, the stability of the display device is improved; in addition, the glue overflow risk is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another display device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another display device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another display device according to an embodiment of the present invention;

fig. 6 is a schematic partial structure diagram of a display device according to an embodiment of the present invention;

fig. 7 is a schematic partial structure diagram of another display device according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the display device shown in FIG. 7 along the section line AA';

FIG. 9 is a schematic cross-sectional view of the display device shown in FIG. 7 along a section line BB';

fig. 10 is a schematic flowchart of a method for manufacturing a display device according to an embodiment of the present invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention. With reference to fig. 1 and 2, the display device includes: the backlight module 100, the display panel 200 and the adhesive 300 for bonding the backlight module 100 and the display panel 200.

The backlight module 100 includes a rubber frame 110; the rubber frame 110 includes a plurality of sidewalls 111, and the plurality of sidewalls 111 surround to form a frame structure.

The surface of the sidewall 111 near one side of the display panel 200 is provided with a groove structure 400.

At least a portion of the adhesive 300 is located in the groove structure 400, and a vertical projection of the adhesive 300 on a plane of the display panel 200 is located in a vertical projection of the sidewall 111 on the plane of the display panel 200.

Illustratively, as shown in fig. 1 and 2, the backlight module 100 includes an iron frame integrated structure 120, and the iron frame integrated structure 120 includes an integrally formed rubber frame 110 and an iron frame 121. Further, as shown in fig. 1, the adhesive 300 includes a first adhesive portion 310 and a second adhesive portion 320, the first adhesive portion 310 is located inside the groove structure 400, the second adhesive portion 320 is located outside the groove structure 400, a surface of the second adhesive portion 320 near the display panel 100 is a first surface, and the first surface is adhered to the display panel 200. The first bonding portion 310 is in contact with the side surface and the bottom surface of the groove structure 400, and thus a contact area of the adhesive 300 with the sidewall 111, that is, an adhesive force of the adhesive 300 with the bezel 110 can be increased, thereby improving stability of the display device 100. In addition, the vertical projection of the adhesive 300 on the plane of the display panel 200 is located in the vertical projection of the sidewall 111 on the plane of the display panel 200, that is, the edge of the adhesive 300 does not extend to the edge of the sidewall 111, that is, the adhesive overflow phenomenon is not generated, and the adhesive 300 does not affect the frame width of the display device, thereby realizing a narrow frame.

In other embodiments, as shown in fig. 2, the adhesive 300 may be entirely located in the groove structure 400, a surface of the adhesive 300 near the display panel 200 is flush with a surface of the sidewall 111 near the display panel 200, and the adhesive 300 adheres to the display panel 200 near the surface of the display panel 200. In this way, the contact area between the adhesive 300 and the sidewall 111, i.e., the adhesion between the adhesive 300 and the adhesive frame 110, can be increased, thereby improving the stability of the display device 100. Moreover, the adhesive 300 is entirely located in the groove structure 400, so that the adhesive overflow phenomenon is avoided, and meanwhile, the adhesive 300 does not affect the frame width of the display device, thereby realizing a narrow frame.

It should be noted that fig. 1 and fig. 2 only exemplarily show the structure in which the rubber frame 110 and the iron frame 121 are integrally formed, in practical applications, the rubber frame 110 and the iron frame 121 may also be independently arranged, and the rubber frame 110 may be fixed on the surface of the iron frame 121, which is not limited in this embodiment of the present invention.

In summary, according to the display device provided by the embodiment of the invention, the groove structure is arranged on the surface of the side wall close to the display panel, and at least part of the bonding glue is positioned in the groove structure, so that the bonding area between the bonding glue and the side wall can be increased, and the bonding force between the bonding glue and the side wall is improved; meanwhile, the vertical projection of the adhesive on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel, so that the risk of glue overflow is reduced, the width of the frame is not increased, and the narrow frame is realized. Therefore, the display device provided by the embodiment of the invention improves the bonding force between the backlight module and the display panel while realizing the narrow frame, namely, the stability of the display device is improved, and in addition, the glue overflow risk is also reduced.

Alternatively, fig. 3 is a schematic structural diagram of another display device provided in an embodiment of the present invention, and in conjunction with fig. 2 and fig. 3, the sidewall 111 may include a sub-sidewall 1111 and a sidewall substrate 1112; the sub-sidewall 1111 is located on a side of the sidewall substrate 1112 near the display panel 200, and the sub-sidewall 1111 and the sidewall substrate 1112 surround the groove structure 400.

The sub-sidewall 1111 and the sidewall base 1112 are integrally formed; alternatively, the sub-sidewall 1111 is provided separately from the sidewall base 1112, and the sub-sidewall 1111 is connected to the sidewall base 1112.

Specifically, fig. 2 illustrates an example in which the sub-sidewall 1111 and the sidewall base 1112 are integrally formed, and fig. 3 illustrates an example in which the sub-sidewall 1111 and the sidewall base 1112 are independently disposed. For fig. 2 and 3, it may be that the sub-sidewall 1111 and the sidewall base 1112 form a groove structure 400.

As shown in fig. 2, a groove structure 400 is formed by grooving the surface of the side wall 111 near the display panel 200, for example, the groove structure 400 is formed by cutting the surface of the side wall 111 near the display panel 200 with a laser. Taking the plane of the bottom surface of the groove structure 400 as a boundary, the portion of the sidewall 111 on the side of the boundary away from the display panel 200 is the sidewall substrate 1112, and the portion of the sidewall 111 on the side of the boundary close to the display panel 200 is the sub-sidewall 1111, as shown in fig. 2, so that the sub-sidewall 1111 and the sidewall substrate 1112 are integrally formed.

In other embodiments, as shown in fig. 3, a convex block may be disposed on a surface of the side wall substrate 1112 near the side of the display panel 200, in a region near an edge of the side wall substrate 1112, and the convex block surrounds and forms the sub-side wall 1111, that is, the sub-side wall 1111 is disposed independently from the side wall substrate 1112. When the sub-sidewall 1111 and the sidewall substrate 1112 are disposed independently, the material of the sub-sidewall 1111 may be the same as or different from the material of the sidewall substrate 1112, and the embodiment of the invention is not limited thereto.

Optionally, fig. 4 is a schematic structural diagram of another display device provided in an embodiment of the present invention, and fig. 5 is a schematic structural diagram of another display device provided in an embodiment of the present invention. Referring to fig. 4 and 5, the side surface and/or the bottom surface of the groove structure 400 includes a protrusion structure 510.

Specifically, during the process of the adhesive 300 transforming from the liquid state to the solid state, the internal stress of the adhesive 300 is increased, which may result in the volume reduction of the adhesive 300, and therefore, the volume of the cured adhesive 300 in the groove structure 400 is reduced, as shown in fig. 4, the protrusion structures 510 are disposed on the side surfaces and/or the bottom surfaces of the groove structure 400, and the cured adhesive 300 in the groove structure 400 can maintain a contact state with the protrusion structures 510, that is, the adhesive 300 can maintain a bonding state with the adhesive frame 110 through the protrusion structures 510, thereby preventing the adhesive 300 from being degummed after curing, and improving the stability of the display device.

In other embodiments, as shown in fig. 5, a concave structure 520 may be disposed on the side surface and/or the bottom surface of the groove structure 400, and the adhesive glue 300 cured in the concave structure 520 maintains the bonding state with the glue frame 110 through the surface of the concave structure 520, so as to prevent the adhesive glue 300 from being degummed after curing, and achieve the purpose of improving the stability of the display device.

Optionally, fig. 6 is a schematic partial structure diagram of a display device according to an embodiment of the present invention. As shown in fig. 6, the groove structure 400 located in the side wall 111 extends in a curved line or a broken line along the extension direction of the long side of the side wall 111.

For clarity of illustrating the specific structure of the groove structure 400, fig. 4 only exemplarily shows the groove structure 400, the adhesive 300, and the sidewalls 111 in the display device. Illustratively, as shown in fig. 4, the rubber frame includes four sidewalls 111a, 111b, 111c, and 111d, where the extending direction of the long sides of the sidewalls 111a and 111c is a first direction, and the extending direction of the long sides of the sidewalls 111b and 111d is a second direction. The side wall 111a is provided with a groove structure 400a, the side wall 111b is provided with a groove structure 400b, the side wall 111c is provided with a groove structure 400c, the side wall 111d is provided with a groove structure 400d, and the groove structure 400a and the groove structure 400d extend in a curve along a first direction; in the second direction, the groove structures 400b and 400c extend in a curve. In other embodiments, it is also possible that along the first direction, the groove structure 400a and/or the groove structure 400d extend in a fold line; in the second direction, the groove structure 400b and/or the groove structure 400c extend in a fold line.

In the embodiment of the invention, the groove structure 400 is extended in a curve or in a broken line, so that the contact area between the groove structure 400 and the display panel can be increased, and further the contact area between the adhesive 300 in the groove structure 400 and the display panel can be increased, therefore, the adhesive force between the adhesive 300 and the display panel can be increased, and the stability of the display device can be further improved. It should be noted that fig. 6 only shows that the rubber frame includes four sidewalls 111 by way of example, and the number of the sidewalls is not particularly limited in the embodiment of the present invention.

Alternatively, with continued reference to fig. 6, the groove structures 400 correspond one-to-one with the sidewalls 111.

Specifically, as shown in fig. 6, the sidewall 111a is provided with a groove structure 400a, and the groove structure 400a is provided with an adhesive 300 a; a groove structure 400b is arranged on the side wall 111b, and bonding glue 300b is arranged in the groove structure 400 b; a groove structure 400c is arranged on the side wall 111c, and bonding glue 300c is arranged in the groove structure 400 c; the sidewall 111d is provided with a groove structure 400d, and the groove structure 400d is internally provided with adhesive 300 d. In the embodiment of the invention, the groove structure 400 is arranged on each side wall 111, so that the frequency of forming the groove structure 400 on the side wall surface 111 is reduced, the time for arranging the groove structure 400 is shortened, the time of a process is saved, furthermore, the bonding adhesive 300 can be arranged in one groove structure 400 through one-time adhesive dispensing process, and the number of the groove structures 400 arranged on each side wall 111 is less, so that the frequency of the adhesive dispensing process can be reduced, the time of the adhesive dispensing process is shortened, the time of the process is further saved, and the productivity of the display device is improved.

Optionally, with continued reference to fig. 6, the plurality of sidewalls 111 are connected in series; the groove structures 400 located in the two sidewalls 111 connected to each other are communicated with each other.

Illustratively, as shown in fig. 6, both ends of the sidewall 111a are respectively connected to a first end of the sidewall 111b and a first end of the sidewall 111c, and a second end of the sidewall 111b and a second end of the sidewall 111c are respectively connected to both ends of the sidewall 111 d. The two ends of the groove structure 400a are respectively communicated with the first end of the groove structure 400b and the first end of the groove structure 400c, and the second end of the groove structure 400b and the second end of the groove structure 400c are respectively communicated with the two ends of the groove structure 400d, i.e. the groove structures 400 are mutually communicated. Therefore, the connected groove structures 400 can be formed only by one process, the number of times of forming the groove structures 400 is reduced, the time for setting the groove structures 400 is shortened, the time of process procedures is saved, further, the adhesive 300 can be set in the whole groove structures 400 only by one dispensing process, the number of times of dispensing processes is reduced, the dispensing process time is shortened, the time of process procedures is further saved, and the improvement of the productivity of the display device is facilitated.

Optionally, fig. 7 is a schematic partial structure diagram of another display device according to an embodiment of the present invention. As shown in fig. 7, the groove structure 400 includes a plurality of sub-groove structures 410 along the extending direction of the long side of the sidewall 111; the plurality of side walls 111 are connected in sequence; the plurality of sub-groove structures 410 at least include a first sub-groove structure 411 at an end portion of the sidewall 111, and the first sub-groove structures 411 in the two sidewalls 111 connected to each other are communicated with each other.

For clarity of illustrating the specific structure of the groove structure 400, fig. 7 only exemplarily shows the groove structure 400 and the sidewall 111 in the display device. Illustratively, as shown in fig. 7, along the first direction, the side wall 111a and the side wall 111c are provided with a plurality of sub-groove structures 411; along the second direction, be provided with a plurality of sub-groove structure 411 on lateral wall 111b and the lateral wall 111d, can increase the contact surface between lateral wall 111 and the display panel, the display panel exerts for lateral wall 111 the pressure is littleer, improves the structural stability of gluey frame, therefore display device is more stable.

As shown in fig. 7, the end of the sidewall 111a is provided with first sub-groove structures 411a and 411a ', the end of the sidewall 111b is provided with first sub-groove structures 411b and 411 b', the end of the sidewall 111c is provided with first sub-groove structures 411c and 411c ', the end of the sidewall 111d is provided with first sub-groove structures 411d and 411 d', the first sub-groove structure 411a is communicated with the first sub-groove structure 411b, the first sub-groove structure 411a 'is communicated with the first sub-groove structure 411c, the first sub-groove structure 411 b' is communicated with the first sub-groove structure 411d, and the first sub-groove structure 411c 'is communicated with the first sub-groove structure 411 d', that is, the first sub-groove structures 411 in the two interconnected sidewalls 111 are communicated with each other. The number of the first sub-groove structures 411 disposed on the sidewall 111 is reduced, so that the number of times of forming the groove structure 400 can be reduced, the time of disposing the groove structure 400 can be shortened, and the process time can be saved.

Optionally, with continued reference to FIG. 1, the depth d of the groove structure 400 satisfies 1mm ≦ d ≦ 3 mm.

Specifically, the size of the groove structure 400 determines the contact area between the adhesive 300 and the groove structure 400, i.e., the adhesive force between the adhesive 300 and the adhesive frame 110, and therefore the depth d of the groove structure 400 needs to be set reasonably. For example, if d ≧ 1mm, the adhesive force between the adhesive 300 and the adhesive frame 110 can maintain the stability of the display device 100. In addition, if the depth d of the groove structure 400 is too large, the adhesive force between the adhesive 300 and the adhesive frame 110 is not changed too much, which may cause waste of the adhesive 300 and waste of resources and costs. Practice shows that when d is larger than 3mm, the change of the bonding force between the bonding glue 300 and the glue frame 110 is very small, so that the depth d of the groove structure 400 is larger than or equal to 1mm and smaller than or equal to 3 mm. It should be noted that, in the embodiment of the present invention, only the depth d of the groove structure 400 corresponding to the case where the adhesive force between the adhesive 300 and the adhesive frame 110 is sufficient to maintain the stability of the display device and the depth d of the groove structure 400 corresponding to the case where the change of the adhesive force between the adhesive 300 and the adhesive frame 110 is small are exemplarily described, and the depth d of the groove structure 400 is flexibly set according to the material, the process, and other factors in practical application.

Alternatively, fig. 8 is a schematic cross-sectional view of the display device shown in fig. 7 along the section line AA'. As shown in FIG. 8, the vertical projection of the groove structure 400 on the plane of the display panel 200 is located in the vertical projection of the sidewall 111 on the display panel 200, and the width W1 of the groove structure 400 and the width W2 of the sidewall 111 satisfy 0.5W2 ≦ W1 ≦ 0.75W 2.

Specifically, as shown in fig. 8, the groove structure 400 has a width W1 and the sidewall 111 has a width W2 in the direction of the arrow. The magnitude of the adhesive force between the adhesive 300 and the display panel 200 depends on the contact area between the groove structure 400 and the display panel, and therefore, the width W1 of the groove structure 400 needs to be set properly. For example, when W1 is greater than or equal to 0.5W2, the bonding force between the adhesive 300 and the display panel can maintain the stability of the display device. In addition, if the width W1 of the groove structure 400 is too large, the supporting force of the glue frame 110 on the display panel may be reduced. For example, when W1>0.75W2, the supporting force of the plastic frame on the display panel is not enough to maintain the stability of the display device, so the width W1 of the groove structure 400 and the width W2 of the side wall 111 satisfy 0.5W2 ≦ W1 ≦ 0.75W 2. It should be noted that, the embodiment of the present invention only exemplifies the relationship between the width W1 of the groove structure 400 and the width W2 of the sidewall 111 when the adhesive force between the adhesive glue and the display panel and the supporting force of the glue frame to the display panel are both sufficient to maintain the stability of the display device 100, and the relationship between the width W1 of the groove structure 400 and the width W2 of the sidewall 111 is flexibly set according to the material, the process, and other factors in practical application.

Alternatively, fig. 9 is a schematic cross-sectional structure view of the display device shown in fig. 7 along a section line BB'. As shown in fig. 9, a width W3 of a side of the groove structure 400 facing away from the display panel 200 is greater than a width W4 of a side of the groove structure 400 facing toward the display panel.

Specifically, as shown in fig. 9, the width of the groove structure 400 away from the display panel is W3, the width of the groove structure 400 near the display panel is W4, and W3> W4, that is, the opening of the groove structure 400 is small, so as to prevent the adhesive in the groove structure 400 from flowing backwards.

Optionally, with continued reference to fig. 9, the groove structure 400 has a trapezoidal cross-sectional shape, with a lower base angle θ of the trapezoid being greater than or equal to 80 °.

Specifically, when the groove is formed along the surface of the sidewall 111 near the display panel, the sidewall 111 may be broken when the slope of the groove structure 400 is too small, and the integrity of the groove structure 400 may not be maintained. For example, for a certain width W4, the lower base angle of the trapezoid is greater than or equal to 80 ° to maintain the integrity of the groove structure 400. It should be noted that, in the embodiment of the present invention, only the lower bottom corner of the cross section of the groove structure 400 is exemplarily described, and in practical application, the lower bottom corner of the cross section of the groove structure 400 is flexibly set according to factors such as materials and processes.

Optionally, the adhesive is a hot melt adhesive. Illustratively, hot melt adhesive is generally adopted in the process, the hot melt adhesive is melted at high temperature and filled in the groove structure, and the adhesive frame and the display panel are bonded after the hot melt adhesive is cooled. It should be noted that other types of colloids can be selected in practical application, and the embodiment of the present invention is not limited to this specifically.

The display device provided in the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, a television, a display area, a digital photo frame, a navigator, an intelligent wearable display device, or any product or component with a display function in specific implementation, which is not particularly limited in the embodiment of the present invention.

Based on the same inventive concept, the embodiment of the invention also provides a preparation method of the display device, which is used for preparing any one of the display devices provided in the embodiment of the invention.

Fig. 10 is a schematic flowchart of a method for manufacturing a display device according to an embodiment of the present invention. As shown in fig. 10, the specific steps include:

s110, providing a backlight module, wherein the backlight module comprises a rubber frame; the rubber frame comprises a plurality of side walls, and a frame structure is formed by the surrounding of the side walls.

S120, preparing a groove structure on the surface of the side wall close to one side of the display panel.

S130, preparing bonding glue in the groove structure through a glue dispensing process, wherein the height of the bonding glue is larger than or equal to the depth of the groove structure.

S140, providing a display panel, and bonding the backlight module and the display panel through the bonding glue, wherein the vertical projection of the bonding glue on the plane of the display panel is positioned in the vertical projection of the side wall on the plane of the display panel.

Specifically, utilize some adhesive equipment to glue the coating to groove structure in, the volume of gluing is controlled simultaneously out so that the height that coated bonding glued equals groove structure's degree of depth, consequently, the bonding glues a side surface that is close to display panel and can contact with display panel to the realization glues frame and display panel's bonding, and can not produce the excessive phenomenon of gluing, bonding glue can not cause the influence to display device's frame width, consequently realized narrow frame.

In other embodiments, the glue outlet amount can be controlled so that the height of the coated bonding glue is greater than the depth of the groove structure, after the display panel and the bonding glue are bonded, the vertical projection of the bonding glue on the plane where the display panel is located in the vertical projection of the side wall on the plane where the display panel is located, so that the bonding of the glue frame and the display panel can be realized, the glue overflow phenomenon cannot be generated, the bonding glue cannot affect the frame width of the display device, and therefore the narrow frame is realized. Due to the fact that the glue dispensing process can accurately control glue discharging amount, narrow frames can be achieved, and glue overflowing risks can be avoided.

The preparation method of the display device provided by the embodiment of the invention has the beneficial effects of the display device in the embodiment, and the details are not repeated here.

The foregoing is directed to the preferred embodiment of the present invention and the technical principles thereof. The present invention is not limited to the specific embodiments herein, and it will be apparent to those skilled in the art that various changes, rearrangements, and substitutions can be made without departing from the scope of the invention. Therefore, although the present invention has been described in more detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the claims.