阅读说明：本技术 液晶显示模组及制作方法、液晶显示装置 (Liquid crystal display module, manufacturing method and liquid crystal display device ) 是由 黄玉芬 常伟 钟志勇 张威轶 于 2021-09-22 设计创作，主要内容包括：本发明提供一种液晶显示模组及制作方法、液晶显示装置,液晶显示模组包括背光源和与背光源连接的贴合件,贴合件包括液晶面板,背光源包括胶铁,胶铁包括铁框,铁框形成有多个注胶点位,胶铁由胶体自注胶点位入铁框形成,铁框还形成有水滴角结构,位于水滴角结构处的注胶点位沿水滴角结构边缘设置有缺口形成注胶孔。铁框上形成的注胶点位用于注入胶体,在水滴角结构处设置缺口形成注胶孔,使得注胶点位可以通过缺口与外界连通,这样当弯折时应力可以在缺口处得以释放,而不会使胶铁产生严重变形,避免了胶铁与遮光胶分离可能造成的漏光或膜材褶皱等显示异常。该液晶显示模组具有不会因胶铁变形而产生漏光的优点。(The invention provides a liquid crystal display module, a manufacturing method and a liquid crystal display device, wherein the liquid crystal display module comprises a backlight source and an attaching piece connected with the backlight source, the attaching piece comprises a liquid crystal panel, the backlight source comprises a rubber iron, the rubber iron comprises an iron frame, the iron frame is provided with a plurality of glue injection point positions, the rubber iron is formed by the way that rubber enters the iron frame from the glue injection point positions, the iron frame is further provided with a water drop angle structure, and the glue injection point positions at the water drop angle structure are provided with notches along the edge of the water drop angle structure to form glue injection holes. The injecting glue position that forms on the chase is used for injecting the colloid, sets up the breach in water droplet angle structure department and forms the injecting glue hole for the injecting glue position can be through breach and external intercommunication, and stress can release in breach department when buckling like this, and can not make the sizing block produce serious deformation, has avoided sizing block and shading to glue the light leak or membrane material fold that the separation probably caused and show unusually. The liquid crystal display module has the advantage that light leakage is not generated due to deformation of the rubber iron.)

1. The utility model provides a liquid crystal display module assembly which characterized in that includes:

backlight and with the laminating piece that the backlight is connected, the laminating piece includes liquid crystal display panel, the backlight is including gluing indisputable, it includes the chase to glue indisputable, the chase is formed with a plurality of injecting glue position, glue indisputable by the colloid certainly the injecting glue position is gone into the chase forms, the chase still is formed with water droplet angle structure, is located the injecting glue position of water droplet angle structure department is followed water droplet angle structure edge is provided with the breach and forms the injecting glue hole.

2. The LCD module of claim 1, wherein the top of the bezel forms the water drop corner structure, the water drop corner structure being arc-shaped.

3. The liquid crystal display module of claim 1, wherein the glue injection holes are circular arc-shaped glue injection holes.

4. The liquid crystal display module of claim 3, wherein the central angle of the circular arc corresponding to the circular arc injection hole is greater than 180 degrees.

5. The liquid crystal display module of claim 1, wherein the glue injection holes are rectangular glue injection holes.

6. The liquid crystal display module of any of claims 1-5, wherein the backlight source further comprises a reflector, a light guide plate, a light bar, a diffuser and a brightness enhancement film sequentially mounted on the plastic.

7. The LCD module as claimed in any one of claims 1-5, wherein the attaching member comprises a cover plate, an optical adhesive layer, an upper polarizer, an LCD panel and a lower polarizer, the cover plate, the optical adhesive layer, the upper polarizer, the LCD panel and the lower polarizer are sequentially disposed, the lower polarizer is disposed facing the backlight source, and the lower polarizer is connected to the backlight source through a light-shielding adhesive.

8. A liquid crystal display comprising the liquid crystal display module according to any one of claims 1 to 7.

9. The manufacturing method of the liquid crystal display module is characterized by comprising the following steps:

providing an iron sheet, punching a plurality of glue injection points on the iron sheet, wherein the glue injection points are arranged to form a contour with a certain shape; wherein, part of the glue injection points are arranged to form an arc of a water drop angle structure;

punching the iron sheet with the glue injection point position into a semi-finished iron sheet along the outline under a mould, wherein the outer wall part of the glue injection point position at the water drop corner structure is punched to form the glue injection point position with an opening;

bending the semi-finished iron sheet to form an iron frame, wherein the glue injection point with the opening forms a glue injection hole with a notch;

and injecting colloid into the glue injection holes to form the glue iron.

10. The method for manufacturing a liquid crystal display module according to claim 9, wherein after the step of injecting the glue into the glue injection holes to form the glue, the method further comprises the following steps:

sequentially mounting a reflecting sheet, a light guide plate, a light bar, a diffusion sheet and a brightness enhancement sheet on the rubber iron to form a backlight source;

respectively attaching polaroids to the upper surface and the lower surface of the liquid crystal panel, and binding the chips by using conductive films;

binding the flexible circuit board by using a conductive film;

attaching the cover plate by using optical glue to form an attaching piece;

and attaching the backlight source and the attaching piece to form the liquid crystal display module.

Technical Field

The invention relates to the field of display modules, in particular to a liquid crystal display module, a manufacturing method of the liquid crystal display module and a liquid crystal display device.

Background

The liquid crystal display module has been widely used because of its thin body, power saving, no radiation and other advantages. Most of the existing liquid crystal display modules in the market are backlight liquid crystal display modules, which include a liquid crystal panel and a backlight source. Since the liquid crystal panel does not emit light, the backlight is one of the key components of the liquid crystal display because the light source provided by the backlight is required to normally display images.

In the existing backlight source structure, a frame body is mainly of a rubber-iron integrated structure, wherein circular glue injection holes are punched in an iron frame, and then rubber is injected into the glue injection holes to form the rubber-iron. The iron frame at the position of the drop angle of the glue iron manufactured in the way is of a circular arc structure, the iron frame has certain stress during stretching and extrusion forming, and is affected by temperature and humidity during reliability experiment, deformation is aggravated, the glue iron is separated from the shading glue, and side light leakage or film material wrinkles and other serious display abnormalities occur.

In view of the above, it is desirable to provide a novel liquid crystal display module, a manufacturing method thereof, and a liquid crystal display device, so as to solve or at least alleviate the above technical drawbacks.

Disclosure of Invention

The invention mainly aims to provide a liquid crystal display module, a manufacturing method thereof and a liquid crystal display device, and aims to solve the technical problem of light leakage caused by glue iron deformation of the liquid crystal display module in the prior art.

In order to achieve the above object, according to one aspect of the present invention, the present invention provides a liquid crystal display module, which includes a backlight source and an attachment member connected to the backlight source, where the attachment member includes a liquid crystal panel, the backlight source includes a rubber, the rubber includes an iron frame, the iron frame forms a plurality of rubber injection points, the rubber is formed by rubber entering the iron frame from the rubber injection points, the iron frame further forms a water drop angle structure, and a notch is formed at the rubber injection point located at the water drop angle structure along an edge of the water drop angle structure to form a rubber injection hole.

In one embodiment, the top of the iron frame forms the water drop angle structure, and the water drop angle structure is arc-shaped.

In one embodiment, the glue injection holes are circular arc glue injection holes.

In one embodiment, the central angle of the circular arc corresponding to the circular arc glue injection hole is larger than 180 degrees.

In one embodiment, the glue injection holes are rectangular glue injection holes.

In an embodiment, the backlight source further includes a reflective sheet, a light guide plate, a light bar, a diffusion sheet, and a brightness enhancement sheet sequentially mounted on the plastic iron.

In an embodiment, the attachment member includes a cover plate, an optical adhesive layer, an upper polarizer, a liquid crystal panel, and a lower polarizer, which are sequentially disposed, the lower polarizer is disposed facing the backlight source, and the lower polarizer is connected to the backlight source through a light-shielding adhesive.

According to another aspect of the present invention, the present invention provides a liquid crystal display, which includes the liquid crystal display module described above.

According to another aspect of the present invention, the present invention provides a method for manufacturing a liquid crystal display module, comprising the following steps:

providing an iron sheet, punching a plurality of glue injection points on the iron sheet, wherein the glue injection points are arranged to form a contour with a certain shape; wherein, part of the glue injection points are arranged to form an arc of a water drop angle structure;

punching the iron sheet with the glue injection point position into a semi-finished iron sheet along the outline under a mould, wherein the outer wall part of the glue injection point position at the water drop corner structure is punched to form the glue injection point position with an opening;

bending the semi-finished iron sheet to form an iron frame, wherein the glue injection point with the opening forms a glue injection hole with a notch;

and injecting colloid into the glue injection holes to form the glue iron.

In an embodiment, after the step of injecting the colloid into the glue injection hole to form the glue iron, the method further includes the following steps:

sequentially mounting a reflecting sheet, a light guide plate, a light bar, a diffusion sheet and a brightness enhancement sheet on the rubber iron to form a backlight source;

respectively attaching polaroids to the upper surface and the lower surface of the liquid crystal panel, and binding the chips by using conductive films;

binding the flexible circuit board by using a conductive film;

attaching the cover plate by using optical glue to form an attaching piece;

and attaching the backlight source and the attaching piece to form the liquid crystal display module.

In the above-mentioned scheme, the liquid crystal display module includes the liquid crystal display module, including the backlight and the laminating piece of being connected with the backlight, laminating piece includes liquid crystal display panel, and the backlight includes gluey iron, and gluey iron includes the chase, and the chase is formed with a plurality of injecting glue position, and gluey iron is gone into the chase by the colloid from the injecting glue position and is formed, and the chase still is formed with water droplet angle structure, and the injecting glue position that is located water droplet angle structure department is provided with the breach along water droplet angle structure edge and forms the injecting glue hole. The injecting glue position that forms on the chase is used for injecting the colloid, sets up the breach in water droplet angle structure department and forms the injecting glue hole for the injecting glue position can be through breach and external intercommunication, and stress can release in breach department when buckling like this, and can not make the sizing block produce serious deformation, has avoided sizing block and shading to glue the light leak or membrane material fold that the separation probably caused and show unusually. The invention has the advantage of no light leakage caused by the deformation of the rubber iron.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a glue iron according to an embodiment of the present invention;

FIG. 3 is a schematic view of a water drop corner structure according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a glue injection hole according to an embodiment of the present invention;

FIG. 5 is a schematic view (side view) of a portion of a liquid crystal display module according to an embodiment of the invention;

FIG. 6 is a schematic flow chart illustrating a method for fabricating a liquid crystal display module according to another embodiment of the present invention;

FIG. 7 is a schematic flow chart illustrating a method for fabricating a liquid crystal display module according to another embodiment of the invention.

The reference numbers illustrate:

100. a display module; 11. glue iron; 12. injecting glue holes; 13. a notch; 14. a light guide plate; 15. a reflective sheet; 16. film material; 17. glue injection point positions; 21. a liquid crystal panel; 22. a cover plate; 23. an optical adhesive layer; 24. an upper polarizer; 25. a lower polarizer; 3. a water drop corner structure; 4. a camera mounting hole; 5. and (5) shading glue.

The implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 to 5, according to an aspect of the present invention, the present invention provides a liquid crystal display module 100, including a backlight source and an attachment member connected to the backlight source, where the attachment member includes a liquid crystal panel 21, the backlight source includes a rubber 11, the rubber 11 includes an iron frame, the iron frame is formed with a plurality of rubber injection points 17, the rubber 11 is formed by rubber entering the iron frame from the rubber injection points 17, the iron frame is further formed with a water drop angle structure 3, and the rubber injection points 17 located at the water drop angle structure 3 are provided with notches 13 along edges of the water drop angle structure 3 to form rubber injection holes 12.

It should be noted that, in the prior art, as for a mobile phone, a water drop corner structure 3 is provided, that is, an inwardly concave arc is provided at the top of the mobile phone, and a camera mounting hole 4 is provided at the arc for placing a camera of the mobile phone, so as to conveniently design the mobile phone with a narrow edge. In addition, in the existing backlight source structure, the strength of the pure rubber frame structure is greatly weaker than that of the iron frame structure, and the rubber frame is not conductive, so that the electrostatic shielding effect is greatly weaker than that of the rubber 11 structure, the rubber 11 structure serving as a structure for fixing all materials and supporting Liquid Crystal (LCD) becomes the mainstream structure of the market, and the light shielding rubber 5 is further arranged on the rubber 11 structure to prevent light from leaking from the edge. In the prior art, the glue 11 structure is that a round hole is punched on an iron sheet, then an iron frame is formed by bending or other processing, and glue is injected into the round hole to form the integrated glue 11. However, the water drop corner structure 3 of the iron frame is in an arc structure, the iron frame has certain stress during stretching and extrusion molding, and the stress generated during bending cannot be released and is easy to deform. During a reliability test, deformation is aggravated under the influence of temperature and humidity, and finally the glue iron 11 is separated from the light-shielding glue 5, so that serious display abnormalities such as side light leakage, wrinkling of the film material 16 (the film material 16 comprises a brightness enhancement film and a diffusion film) and the like occur.

In the above embodiment, the glue injection point 17 formed on the iron frame is used for injecting glue, and the notch 13 is arranged at the water drop corner structure 3 to form the glue injection hole 12, so that the glue injection point 17 can be communicated with the outside through the notch 13, and thus, when the water drop corner structure is bent, the stress can be released at the notch 13, the glue 11 is not seriously deformed, and the display abnormality such as light leakage or membrane material 16 wrinkles, which may be caused by the separation of the glue 11 and the light-shielding glue 5, is avoided. This embodiment has an advantage of not generating light leakage due to deformation of the glue 11.

In order to avoid the understanding deviation of the reader, it should be noted here that the glue injection points 17 and the glue injection holes 12 can be used for glue injection, and only the glue injection points 17 are located at other positions of the glue frame except the position of the water drop corner structure 3, and the notches 13 are not necessarily required to be provided, and since the position of the water drop corner structure 3 has a large stress, the notches 13 are required to be provided at the glue injection points 17 at the position of the water drop corner structure 3 so that the stress is released. Here, the glue injection site 17 may be a circular through hole, i.e., a through hole circular die is punched to form. At this time, the glue injection hole 12 may be a circular-arc-shaped glue injection hole, which is equivalent to a circular through hole formed by punching out a part of a circular arc. In order to ensure the glue injection effect, the central angle of the circular arc 12 corresponding to the circular arc is larger than 180 degrees, so that the glue injection hole 12 is smaller, and the injected glue is not easy to overflow. Of course, the glue injection points 17 may also be rectangular through holes, that is, formed by punching through a rectangular die. The shape of the corresponding glue injection point 17 and the shape of the glue injection hole 12 can be set according to actual needs by those skilled in the art.

In one embodiment, the top of the iron frame forms a water drop angle structure 3, and the water drop angle structure 3 is arc-shaped. The arc shape is provided here mainly for aesthetic needs and convenience in providing the camera mounting hole 4.

In an embodiment, the backlight further includes a reflective sheet 15, a light guide plate 14, a light bar, a diffusion sheet, and a brightness enhancement sheet sequentially mounted on the rubber 11. Certainly, the brightness enhancement film may include an upper brightness enhancement film and a lower brightness enhancement film, and the diffusion film may also include an upper diffusion film and a lower diffusion film, the upper brightness enhancement film and the lower brightness enhancement film are disposed between the upper diffusion film and the lower diffusion film, and the rubber 11 mainly plays a role in fixing and supporting.

In one embodiment, the attachment member includes a cover plate 22, an optical adhesive layer 23, an upper polarizer 24, a liquid crystal panel 21, and a lower polarizer 25, which are sequentially disposed, the lower polarizer 25 is disposed facing the backlight source, and the lower polarizer 25 is connected to the backlight source through a light shielding adhesive 5. The light shielding glue 5 is mainly used for preventing light from leaking outside.

According to another aspect of the present invention, an lcd includes the above-mentioned lcd module 100. Specifically, the liquid crystal display device may be a mobile phone, a flat panel or a television, and of course, may be any other liquid crystal display device requiring the liquid crystal display module 100. Since the lcd device includes all the technical solutions of all the embodiments of the lcd module 100, at least all the advantages brought by all the technical solutions are obtained, and no further description is given here.

According to another aspect of the present invention, referring to fig. 6, the present invention provides a method for manufacturing a liquid crystal display module, comprising the following steps:

s100, providing an iron sheet, punching a plurality of glue injection points on the iron sheet, wherein the glue injection points are arranged to form a contour with a certain shape; wherein, partial glue injection points are arranged to form an arc of a water drop angle structure;

taking a liquid crystal display module of a mobile phone as an example, a plurality of circular through holes are punched on an iron sheet, and a plurality of glue injection points are arranged in a shape of a mobile phone shell with a water drop corner structure.

S200, punching the iron sheet with the glue injection point position under a mould to form a semi-finished iron sheet along the outline, wherein the outer wall part of the glue injection point position at the water drop corner structure is punched to form the glue injection point position with an opening;

unnecessary iron sheet can be got rid of through the punching press, when the injecting glue position is circular, can be in the partial circular arc formation that the circular injecting glue position was located to the water droplet angle structure excision has the open-ended round hole.

S300, bending the semi-finished iron sheet to form an iron frame, and forming a glue injection hole with a notch at a glue injection point with an opening;

the opening is used for releasing stress during bending and preventing the iron frame from deforming.

S400, injecting colloid into the glue injection holes to form the glue iron. And injecting the colloid into the glue injection hole and the glue injection point position to form a glue and iron integrated forming structure.

In the above embodiment, the injecting glue position that forms on the chase is used for injecting the colloid, and the breach formation injecting glue hole is punched out in water droplet angle structure department for the injecting glue position can be through breach and external intercommunication, and stress can be released in breach department when buckling like this, and can not make the sizing block produce serious deformation, has avoided sizing block and shading to glue the light leak that the separation probably caused or display such as membrane material fold unusually.

In an embodiment, referring to fig. 7, after the step of injecting the colloid into the glue injection hole to form the glue iron, the method further includes the following steps:

s500, sequentially mounting a reflecting sheet, a light guide plate, a light bar, a diffusion sheet and a brightness enhancement sheet on the rubber iron to form a backlight source;

s600, respectively attaching polaroids to the upper surface and the lower surface of the liquid crystal panel, and binding the chips by using conductive films;

s700, binding the flexible circuit board by using a conductive film;

s800, attaching the cover plate to form an attaching piece through optical cement

And S900, attaching the backlight source and the attaching piece to form the liquid crystal display module.

Specifically, after a glue and iron integrated structure is manufactured, a backlight source is formed by assembling a reflector plate, a light guide plate, a light bar, a diffusion plate and a brightness enhancement plate, a polarizer is attached to the upper surface and the lower surface of a liquid crystal panel, a chip is bound by a conductive film to form a COG module (a COG module is called chinp on glass, which means that an IC is carried on a glass panel), a flexible circuit board is bound on the COG module to form a FOG module (the FOG module is a mounting mode in the liquid crystal display industry, and the FOG module is called filmm on glass, which means that an FPC is carried on the glass panel), then the FOG module is attached to a cover plate through an OCA optical Adhesive (OCA, which is a special Adhesive for gluing transparent optical elements and is a layer of special optical transparent double-sided Adhesive) to form an attaching piece, and then the attaching piece is assembled with the backlight source and the liquid crystal display module.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the claims and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.