Structure for optimizing thickness of display module

Abstract

A structure for optimizing the thickness of a display module comprises display screen glass, a touch FPC, a COF and a display FPC. A bending area is arranged on the left side of the bottom of the touch FPC, a double-faced adhesive tape is arranged on the back of the touch FPC, the shape and size of the front face of the double-faced adhesive tape are the same as those of the front face of the touch FPC, an opening is formed in the center of the double-faced adhesive tape, and the shape and size of the front face of the opening are the same as those of the front face of the PI reinforcement. According to the structure for optimizing the thickness of the display module, the opening is formed in the double-faced adhesive tape, so that the double-faced adhesive tape is designed to be shaped like a Chinese character'hui ', the PI reinforcement on the touch FPC can be located in the center of the double-faced adhesive tape, the height of the PI reinforcement is the same as that of the double-faced adhesive tape, and therefore when the double-faced adhesive tape is adhered to the touch FPC, the double-faced adhesive tape and the PI reinforcement cannot be overlapped together, and the thickness of the display module is optimized. Therefore, the stacking thickness of the module can be reduced by 0.1 mm, more space is reserved for the battery of the whole machine, the standby time of the product is prolonged, and the market competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a structure for optimizing the thickness of a display module. Background Art

[0002] With the continuous advancement of science and technology and the improvement of people's living standards, smart wearable devices such as bracelets or watches are becoming more and more common, and the competition among their products is becoming more and more fierce. Consumers are pursuing higher and higher requirements for product thickness and standby time, especially for sports wearable products. Whole machine manufacturers hope to make the display screen thinner, so that more space can be reserved for the whole machine battery and the standby time of the product can be improved. The back of the existing display touch FPC is attached with a double-sided adhesive with a thickness of 0.1mm. Due to the difference in the height of the back of the FPC, such as the back of the component area usually has a 0.1mm PI reinforcement board. After the double-sided adhesive is compounded at this position, the stacking thickness is relatively high, which affects the stacking thickness of the entire display module. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a structure for optimizing the thickness of a display module.

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

[0005] A structure for optimizing the thickness of a display module, comprising: display glass, a touch FPC, a COF and a display FPC; a bending zone is arranged on the left side of the bottom of the touch FPC, the bending zone is connected to the top of the display glass, the bottom of the display glass is connected to the COF, and the bottom of the COF is connected to the display FPC; a PI reinforcement is arranged at the center of the back of the touch FPC, a double-sided adhesive is arranged at the back of the touch FPC, the shape and size of the front of the double-sided adhesive are the same as the shape and size of the front of the touch FPC, an opening is arranged in the center of the double-sided adhesive, and the shape and size of the front of the opening are the same as the shape and size of the front of the PI reinforcement.

[0006] In one embodiment, a release film is attached to the surface of the double-sided adhesive tape, and the shape and size of the front side of the release film are the same as the shape and size of the front side of the double-sided adhesive tape.

[0007] In one of the embodiments, a release film tearing handle is provided at the bottom of the right side of the front side of the release film, and the release film is a transparent film.

[0008] In one embodiment, a protective film is attached to the front of the display glass, the shape and size of the front of the protective film are the same as the shape and size of the front of the display glass, and a protective film tearing handle is provided on the right side of the top of the front of the protective film.

[0009] In one of the embodiments, a COF driving chip is disposed at the center of the front surface of the COF.

[0010] In one of the embodiments, the bending area and the connection between the COF and the display glass are provided with bending protection glue.

[0011] In one of the embodiments, green oil is applied on the bending area to soften it.

[0012] In one of the embodiments, the double-sided adhesive tape and the PI reinforcement have the same height, and the PI reinforcement is arranged in an opening in the center of the double-sided adhesive tape, and the front side of the double-sided adhesive tape is in the shape of a “U”.

[0013] In one of the embodiments, a plug-in terminal PI is disposed on the right side of the top of the touch FPC, and an electronic component is disposed on the front of the touch FPC.

[0014] In one of the embodiments, a connector is provided on the right side of the front side of the display FPC.

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

[0016] The utility model optimizes the structure of the display module thickness. By opening an opening on the double-sided adhesive tape to make it in a "U" shape, the PI reinforcement on the touch FPC can be located in the center of the double-sided adhesive tape, and the height of the PI reinforcement is the same as the height of the double-sided adhesive tape. Therefore, when the double-sided adhesive tape is bonded to the touch FPC, it will not overlap with the PI reinforcement. Therefore, the stacking thickness of the module can be reduced by 0.1mm, leaving more space for the battery of the whole machine, thereby improving the product standby time and market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a front overall schematic diagram of the structure for optimizing the thickness of the display module of the utility model;

[0019] Figure 2This is a schematic diagram of the front side of the double-sided adhesive structure for optimizing the thickness of the display module of the utility model;

[0020] Figure 3 This is a front schematic diagram of the structural release film for optimizing the thickness of the display module of the utility model.

[0021] In the figure: 1. Display glass; 11. Protective film; 2. Touch FPC; 21. Double-sided tape; 22. PI reinforcement; 23. Release film; 24. Bending area; 3. COF; 31. COF driver chip; 4. Display FPC; 41. Connector; 5. Bending protective glue. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0023] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present application.

[0024] Unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] like Figure 1-3As shown, a structure for optimizing the thickness of a display module includes: a display glass 1, a touch FPC2, a COF3, and a display FPC4; a bending area 24 is provided on the left side of the bottom of the touch FPC2, the bending area 24 is connected to the top of the display glass 1, the bottom of the display glass 1 is connected to the COF3, and the bottom of the COF3 is connected to the display FPC4; a PI reinforcement 22 is provided at the center of the back of the touch FPC2, a double-sided adhesive 21 is provided at the back of the touch FPC2, the shape and size of the front of the double-sided adhesive 21 are the same as the shape and size of the front of the touch FPC2, and an opening is provided in the center of the double-sided adhesive 21, the shape and size of the front of the opening are the same as the shape and size of the front of the PI reinforcement 22. It should be noted that the area of ​​the front of the touch FPC2 is smaller than the area of ​​the front of the display glass 1, and the display FPC4 is a flexible circuit board that can be bent and stored, so that the display FPC4 and the touch FPC2 can be bent to the back of the display glass 1, so as to be hidden.

[0027] like Figure 1-3 As shown, in one embodiment, a release film 23 is attached to the surface of the double-sided adhesive tape 21, and the shape and size of the front side of the release film 23 are the same as the shape and size of the front side of the double-sided adhesive tape 21. A release film tearing handle is provided at the bottom of the right side of the front side of the release film 23, and the release film 23 is a transparent film. It should be noted that the light transmittance of the release film 23 is 95%, and the color of the release film tearing handle is blue.

[0028] like Figure 1-3 As shown, in one embodiment, a protective film 11 is attached to the front of the display glass 1, and the shape and size of the front of the protective film 11 are the same as the shape and size of the front of the display glass 1. A protective film tearing handle is provided on the right side of the top of the front of the protective film 11. It should be noted that the protective film 11 is a transparent film.

[0029] like Figure 1-3 As shown, in one embodiment, a COF driving chip 31 is disposed at the center of the front surface of the COF 3.

[0030] like Figure 1-3 As shown, in one embodiment, the bending area 24 and the connection between the COF3 and the display glass 1 are provided with a bending protection glue 5. It should be noted that the bending protection glue 5 can protect the bending area 24 and the flexible circuit at the connection between the COF3 and the display glass 1, thereby preventing it from breaking due to bending.

[0031] like Figure 1-3 As shown, in one embodiment, green oil is applied to the bending area 24 to soften it. It should be noted that this design can soften the bending area 24 so that it can be bent.

[0032] like Figure 1-3As shown, in one embodiment, the heights of the double-sided adhesive 21 and the PI reinforcement 22 are the same, and the PI reinforcement 22 is arranged in the central opening of the double-sided adhesive 21, and the front of the double-sided adhesive 21 is in the shape of a "U" character. It should be noted that the double-sided adhesive 21 can be made of pressure-sensitive adhesive such as Tesa4982.

[0033] like Figure 1-3 As shown in FIG. 1 , in one embodiment, a plug-in terminal PI is disposed on the right side of the top of the touch FPC 2 , and an electronic component is disposed on the front of the touch FPC 2 . It should be noted that the electronic component and the PI reinforcement 22 correspond to each other.

[0034] like Figure 1-3 As shown in FIG. 1 , an embodiment shows that a connector 41 is provided on the right side of the front side of the FPC 4. It should be noted that the connector 41 is a BTB connector.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A structure for optimizing the thickness of a display module, characterized in that: include: Display glass (1), touch FPC (2), COF (3) and display FPC (4); A bending area (24) is provided on the left side of the bottom of the touch FPC (2), the bending area (24) and the top of the display screen glass (1) are connected to each other, the bottom of the display screen glass (1) and the COF (3) are connected to each other, and the bottom of the COF (3) and the display FPC (4) are connected to each other; A PI reinforcement (22) is arranged at the center of the back of the touch FPC (2), a double-sided adhesive tape (21) is arranged at the back of the touch FPC (2), the shape and size of the front of the double-sided adhesive tape (21) are the same as the shape and size of the front of the touch FPC (2), an opening is opened at the center of the double-sided adhesive tape (21), and the shape and size of the front of the opening are the same as the shape and size of the front of the PI reinforcement (22).

2. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: A release film (23) is attached to the surface of the double-sided adhesive tape (21), and the shape and size of the front side of the release film (23) are the same as the shape and size of the front side of the double-sided adhesive tape (21).

3. The structure for optimizing the thickness of a display module according to claim 2, characterized in that: A release film tearing handle is provided at the bottom of the right side of the front side of the release film (23), and the release film (23) is a transparent film.

4. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: A layer of protective film (11) is attached to the front of the display screen glass (1); the shape and size of the front of the protective film (11) are the same as the shape and size of the front of the display screen glass (1); and a protective film tearing handle is provided on the right side of the top of the front of the protective film (11).

5. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: A COF driving chip (31) is arranged at the center of the front side of the COF (3).

6. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: The bending area (24) and the connection between the COF (3) and the display screen glass (1) are all provided with bending protection glue (5).

7. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: The bending area (24) is coated with green oil for softening.

8. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: The double-sided adhesive tape (21) and the PI reinforcement (22) have the same height, and the PI reinforcement (22) is arranged in an opening in the center of the double-sided adhesive tape (21). The front side of the double-sided adhesive tape (21) is in the shape of a "U" character.

9. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: A plug-in terminal PI is arranged on the right side of the top of the touch FPC (2), and an electronic component is arranged on the front of the touch FPC (2).

10. The structure for optimizing the thickness of a display module according to claim 1, characterized in that: A connector (41) is provided on the right side of the front side of the display FPC (4).

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