Antistatic cover plate of display module

Abstract

The antistatic cover plate of the display module comprises a cover plate and the display module, the display module is arranged in the center of the cover plate, the edge of the front face of the cover plate is coated with attaching glue, and the density of the attaching glue is 1.5 G / m < 3 >. The display module comprises a display screen, and the distance between the edge of the cover plate and the edge of glass of the display screen is 1.7 mm or above. According to the anti-static cover plate of the display module, the distance between the cover plate and the glass edge of the display screen is enlarged, so that static electricity can be prevented from being hit to the glass edge from a gap of a machine shell easily, and the situation that electricity is gathered on a path between the cover plate and the glass can be effectively reduced; therefore, the antistatic cover plate of the display module can effectively reduce the condition that static electricity is gathered on the cover plate, so that the cost of adding conductive cloth, TVS tubes and the like on an AMOLED module is reduced, and the market requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to an antistatic cover plate for a display module. Background Art

[0002] At present, for AMOLED smart watches, in order to pass the electrostatic test, if too many TVS tubes and beads are added to the module FPC, the project cost will increase, which is not conducive to the promotion of products. And due to problems such as narrow structural space, the effect is still not good after adding conductive cloth. Moreover, there is a situation of electricity accumulation on the path between the cover plate and the glass of the current AMOLED smart watch, and static electricity is easily transmitted from the gap of the case to the edge of the glass, thus affecting the normal use of the smart watch. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an antistatic cover plate for a display module.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] An antistatic cover plate for a display module, comprising: a cover plate and a display module; the display module is arranged in the center of the cover plate, and a bonding glue is applied on the edge of the front surface of the cover plate, and the density of the bonding glue is 1.5 G / m3; the display module includes a display screen, and the distance between the edge of the cover plate and the edge of the display screen glass is more than 1.7 mm.

[0006] In one embodiment, a COF chip is arranged in the center of the top of the display screen, and a display FPC is arranged at one end of the COF chip away from the display screen.

[0007] In one embodiment, a touch FPC is arranged on the display FPC, and the touch FPC is bent and folded on the display FPC.

[0008] In one embodiment, IC protection papers are arranged on the COF chip, the display FPC and the touch FPC.

[0009] In one embodiment, a foam is arranged on the back of the display screen, and black ink is applied on one side of the foam away from the cover plate.

[0010] In one embodiment, the resistance value between two points at a distance of 0 mm of the black ink is greater than 000 M ohms.

[0011] In one embodiment, an electronic component area is arranged on one side of the display FPC close to the cover plate, and a copper sheet reinforcement is arranged on the bottom of the display FPC circuit board on the side away from the cover plate.

[0012] In one embodiment, the cover plate is attached to the housing by the bonding glue.

[0013] In one embodiment, a conductive cloth is provided on the back of the display module, and the conductive cloth is attached to the housing.

[0014] In one embodiment, an electromagnetic interference resistant layer is provided on the back of the display FPC.

[0015] Compared with the prior art, the present utility model has at least the following advantages:

[0016] For the anti-static cover plate of the display module of the present utility model, by expanding the distance between the cover plate and the edge of the display screen glass, so that the minimum distance is more than 1.7 mm, it can prevent static electricity from easily hitting the glass edge through the gap of the housing, and by using the bonding glue with a density of 1.5 G / m3 to connect the cover plate and the housing, it can effectively reduce the situation of static electricity accumulation on the path between the cover plate and the glass, so that the anti-static cover plate of the display module can effectively reduce the static electricity accumulation on the cover plate, thereby reducing the cost of adding conductive cloth, TVS tubes, etc. to the AMOLED module and meeting the requirements of the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic perspective view of the back of the anti-static cover plate of the display module of the present utility model.

[0019] In the figure: 1, cover plate; 11, bonding glue; 2, display module; 21, display screen; 22, COF chip; 23, display FPC; 24, IC protection paper; 25, touch FPC; 26, black ink; 27, foam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To facilitate the understanding of the present utility model, the following will describe the present utility model more comprehensively with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0022] Unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] As Figure 1 shown, an antistatic cover plate of a display module includes: a cover plate 1 and a display module 2; the display module 2 is arranged in the center of the cover plate 1, and a bonding glue 11 is applied on the edge of the front surface of the cover plate 1, and the density of the bonding glue 11 is 1.5 G / m3; the display module 2 includes a display screen 21, and the distance between the edge of the cover plate 1 and the edge of the glass of the display screen 21 is more than 1.7 mm. It should be noted that the shapes and sizes of the cover plate 1 and the front surface of the casing to be bonded match each other, and the bonding glue 11 needs to be evenly applied on the edge of the cover plate 1 to facilitate bonding and fixation.

[0025] As Figure 1 shown, in an embodiment, a COF chip 22 is arranged in the center of the top of the display screen 21, and a display FPC 23 is arranged at one end of the COF chip 22 away from the display screen 21. A touch FPC 25 is arranged on the display FPC 23, and the touch FPC 25 is bent and folded on the display FPC 23. It should be noted that when the display module needs to complete the final installation, the display FPC 23 and the touch FPC 25 need to be bent so that they can be completely received on the back of the cover plate 1.

[0026] As Figure 1As shown, in one embodiment, IC protection papers 24 are provided on the COF chip 22, the display FPC 23, and the touch FPC 25. It should be noted that the IC protection papers 24 are respectively provided on the IC chips of the COF chip 22, the display FPC 23, and the touch FPC 25.

[0027] As Figure 1 shown, in one embodiment, a foam 27 is provided on the back of the display screen 21, and black ink 26 is applied to the side of the foam 27 away from the cover plate 1. The resistance value between two points at a distance of 10 mm of the black ink 26 should be greater than 1000 M ohms. It should be noted that this design can effectively reduce the static electricity on the cover plate 1.

[0028] As Figure 1 shown, in one embodiment, an electronic component area is provided on the side of the display FPC 23 close to the cover plate 1, and a copper sheet reinforcement is provided on the side of the bottom of the display FPC 23 circuit board away from the cover plate 1. A conductive cloth is provided on the back of the display module 2, and the conductive cloth is attached to the housing. It should be noted that one end of the conductive cloth is attached to the exposed copper area on the display FPC 23, and the other end is connected to the metal outer wall of the housing, so that the static electricity on the display FPC 23 can be conducted to the outside.

[0029] As Figure 1 shown, in one embodiment, the cover plate 1 is attached to the housing through the bonding glue 11. It should be noted that the bonding glue 11 can make the cover plate 1 and the housing fit more closely together.

[0030] As Figure 1 shown, in one embodiment, an electromagnetic interference shielding layer is provided on the back of the display FPC 23. It should be noted that this design can enhance the anti-interference ability of the display FPC 23.

[0031] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An antistatic cover plate for a display module, characterized in that: include: A cover plate (1) and a display module (2); The display module (2) is arranged at the center of the cover plate (1), and a bonding glue (11) is smeared on the edge of the front side of the cover plate (1), and the density of the bonding glue (11) is 1.5G / m3; The display module (2) comprises a display screen (21), and the distance between the edge of the cover plate (1) and the edge of the glass of the display screen (21) is greater than 1.7 mm.

2. The antistatic cover plate of the display module according to claim 1, characterized in that: A COF chip (22) is arranged at the center of the top of the display screen (21), and a display FPC (23) is arranged at one end of the COF chip (22) away from the display screen (21).

3. The antistatic cover plate of the display module according to claim 2, characterized in that: A touch FPC (25) is arranged on the display FPC (23), and the touch FPC (25) is bent and folded on the display FPC (23).

4. The antistatic cover plate of the display module according to claim 3, characterized in that: IC protection paper (24) is provided on the COF chip (22), the display FPC (23) and the touch FPC (25).

5. The antistatic cover plate of the display module according to claim 1, characterized in that: The back of the display screen (21) is provided with foam (27), and a side of the foam (27) away from the cover plate (1) is coated with black ink (26).

6. The antistatic cover plate of the display module according to claim 5, characterized in that: The resistance value of the black ink (26) between two points at a distance of 10 mm is greater than 1000M ohms.

7. The antistatic cover plate of the display module according to claim 2, characterized in that: An electronic component area is arranged on the side of the display FPC (23) close to the cover plate (1), and a copper sheet reinforcement is arranged on the side of the bottom of the display FPC (23) circuit board away from the cover plate (1).

8. The antistatic cover plate of the display module according to claim 1, characterized in that: The cover plate (1) is bonded to the casing via the bonding glue (11).

9. The antistatic cover plate of the display module according to claim 1, characterized in that: The back of the display module (2) is provided with a conductive cloth, and the conductive cloth and the housing are bonded together.

10. The antistatic cover plate of the display module according to claim 2, characterized in that: The back of the display FPC (23) is provided with an anti-electromagnetic interference layer.

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