Display module with common grounding of FPC and backlight in single-layer wiring

Abstract

The utility model discloses a single-layer wiring FPC and backlight common grounding display module, which comprises a display module, backlight is arranged on one side of the display module, an FPC is bound on the display module, one end of the FPC is bound on the display module, the other end of the FPC is bent to the back surface of the backlight, a grounding copper leakage area is arranged on the FPC, and the grounding copper leakage area is arranged on the display module. The FPC is further provided with an open hole, the grounding copper leakage area is in contact with the open hole, and the FPC and the backlight are in grounding connection through the open hole. According to the display module, the FPC is provided with the grounding copper leakage area and the open hole, so that the FPC is in grounding connection with the backlight, and the ESD resistance effect of the FPC is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a display module in which a single-layer wiring FPC and a backlight are grounded together. Background Art

[0002] The display module usually includes a cover plate, a display screen and a backlight. The display screen is usually bound with an FPC, which needs to be bent to the back of the backlight and contact the iron frame on the back of the backlight. In order to consider the production cost and difficulty, the client usually makes the FPC adopt a single-layer routing layout, and the single-layer routing is not prone to short circuit and interference problems, which also improves the reliability of the display module.

[0003] However, after adopting the single-layer routing FPC, the FPC cannot connect the GND from the surface to the bottom layer, so that the ground leakage copper area cannot be set at the position where the FPC contacts the backlight iron frame to achieve common grounding with the backlight iron frame, which weakens the anti-ESD ability of the FPC. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a display module in which a single-layer FPC and a backlight are grounded together.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A display module in which a single-layer FPC and a backlight are grounded together, comprising: a display module, one side of the display module is a backlight, an FPC is bound to the display module, one end of the FPC is bound to the display module, the other end of the FPC is bent to the back of the backlight, a grounding leakage copper area is provided on the FPC, an opening is also opened on the FPC, the grounding leakage copper area is in contact with the opening, and the FPC and the backlight are grounded and connected through the opening.

[0007] In one embodiment, a binding end is provided at one end of the FPC bound to the display module, and the binding end is used to bind the FPC to the display module, and the grounding copper leakage area is provided on one side of the binding end.

[0008] In one embodiment, the ground leakage copper area is formed by extending outward from the upper end of the FPC, the ground leakage copper area is arranged in a long strip shape, and only one end of the ground leakage copper area is connected to the FPC.

[0009] In one embodiment, the opening runs through two sides of the FPC, and the opening is rectangular.

[0010] In one embodiment, the opening and the grounding copper leakage area are located on the same straight line, and the grounding copper leakage area can cover the range of the opening.

[0011] In one embodiment, the ground drain copper area is bent away from the end connected to the FPC to the back side of the backlight and covers the opening.

[0012] In one embodiment, the two outer edges of the ground leakage copper area are respectively 1 mm-2 mm away from the two outer edges opposite to the opening.

[0013] In one of the embodiments, a conductive double-sided adhesive is provided on the side of the ground leakage copper area facing the opening, and the conductive double-sided adhesive is provided along the length direction of the ground leakage copper area, one side of the conductive double-sided adhesive is adhered to the ground leakage copper area, and the other side of the conductive double-sided adhesive is attached to the backlight through the opening, and attached to the area of ​​the FPC outside the opening.

[0014] In one embodiment, the thickness of the conductive double-sided adhesive is 0.1 mm.

[0015] In one embodiment, the display module includes a display screen, the display screen is located on one side of the backlight, and the FPC is bound to the display screen.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model discloses a display module in which a single-layer routing FPC and a backlight are grounded together. A grounding copper leakage area and an opening are provided on the FPC, and the grounding connection between the FPC and the backlight is achieved through conductive double-sided adhesive and the opening, thereby improving the anti-ESD capability of the FPC, so that the static electricity on the FPC is conducted through the grounding copper leakage area and the conductive double-sided adhesive and the opening to the iron frame on the back of the backlight for release. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 This is a front structural schematic diagram of a display module provided by the utility model in which a single-layer wiring FPC and a backlight are grounded together;

[0020] Figure 2 A schematic diagram of the back structure of a display module provided by the utility model in which a single-layer wiring FPC and a backlight are grounded together;

[0021] Figure 3The utility model provides a schematic structural diagram of a ground leakage copper area covering opening in a display module in which a single-layer routing FPC and a backlight are grounded together.

[0022] Description of the drawings: 10. display module; 11. backlight; 12. display screen; 20. FPC; 21. binding end; 22. ground leakage copper area; 23. opening; 30. conductive double-sided adhesive. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] A display module with a single-layer FPC and a backlight that are grounded together, referring to Figure 1 , including a display module 10, one side of the display module 10 is a backlight 11. The display module 10 is bound with an FPC 20, one end of the FPC 20 is bound to the display module 10, and the other end of the FPC 20 is bent to the back of the backlight 11 and contacts the iron frame on the back of the backlight 11.

[0025] Reference Figure 1 The display module 10 includes a display screen 12 , which is located on one side of the backlight 11 , and the FPC 20 is bound to the display screen 12 .

[0026] Reference Figure 1 The end of the FPC 20 bound to the display module 10 is provided with a binding end 21, and the binding end 21 is used to bind the FPC 20 to the display module 10. The FPC 20 is provided with a ground leakage copper area 22 on the outer side relative to the binding end 21. The ground leakage copper area 22 is located on one side of the binding end 21. The ground leakage copper area 22 is formed by extending outward from the upper end of the FPC 20, and the ground leakage copper area 22 is arranged in a long strip shape. Only one end of the ground leakage copper area 22 is connected to the FPC 20, and the ground leakage copper area 22 is located outside the FPC 20 except for the end connected to the FPC 20.

[0027] Reference Figure 1 and Figure 2 , an opening 23 is provided on the FPC 20, and the opening 23 runs through both sides of the FPC 20, and the opening 23 is rectangular. The opening 23 and the grounding drain copper area 22 are located on the same straight line, and the grounding drain copper area 22 can cover the opening 23 of the FPC 20. When the end of the FPC 20 away from the binding end 21 is bent to the back of the backlight 11, the end of the grounding drain copper area 22 away from the connection with the FPC 20 is also bent to the back of the backlight 11 and covers the opening 23, so that the FPC 20 is grounded together with the backlight 11 through the opening 23, thereby improving the anti-ESD capability of the FPC 20.

[0028] Reference Figure 2 and Figure 3The ground leakage copper area 22 covers the range of the opening 23, and the two outer edges of the ground leakage copper area 22 are respectively 1mm-2mm away from the two outer edges opposite to the opening 23, so that the ground leakage copper area 22 can completely cover the position of the opening 23, thereby facilitating the grounding connection between the ground leakage copper area 22 and the backlight 11.

[0029] Reference Figure 2 and Figure 3 A conductive double-sided adhesive 30 for attaching to the FPC 20 is provided on one side of the ground leakage copper area 22 facing the opening 23. The conductive double-sided adhesive 30 is provided along the length direction of the ground leakage copper area 22. One side of the conductive double-sided adhesive 30 is attached to the ground leakage copper area 22. The other side of the conductive double-sided adhesive 30 is attached to the backlight 11 through the opening 23. The side of the conductive double-sided adhesive 30 away from the ground leakage copper area 22 is attached to the area of ​​the FPC 20 outside the opening 23. The conductive double-sided adhesive 30 fixes one side of the ground leakage copper area 22 on the FPC 20, and the conductive double-sided adhesive 30 is conductive, so that the static electricity on the FPC 20 can be conducted through the ground leakage copper area 22 and the conductive double-sided adhesive 30, and through the opening 23 to the iron frame on the back of the backlight 11 for release.

[0030] Further, refer to Figure 2 and Figure 3 The thickness of the conductive double-sided adhesive 30 is 0.1mm.

[0031] 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 display module with a single-layer FPC and a backlight being grounded together, characterized in that: include: A display module (10), one side of the display module (10) being a backlight (11), an FPC (20) being bound to the display module (10), one end of the FPC (20) being bound to the display module (10), the other end of the FPC (20) being bent to the back side of the backlight (11), a grounding copper leakage area (22) being provided on the FPC (20), an opening (23) being provided on the FPC (20), the grounding copper leakage area (22) being in contact with the opening (23), and the FPC (20) and the backlight (11) being grounded and connected via the opening (23).

2. A display module with a single-layer FPC and a backlight being grounded together according to claim 1, characterized in that: One end of the FPC (20) bound to the display module (10) is provided with a binding end (21), the binding end (21) is used to bind the FPC (20) to the display module (10), and the grounding leakage copper area (22) is provided on one side of the binding end (21).

3. The display module with a single-layer FPC and a backlight being grounded together according to claim 2, characterized in that: The ground leakage copper area (22) is formed by extending outward from the upper end of the FPC (20). The ground leakage copper area (22) is arranged in a long strip shape, and only one end of the ground leakage copper area (22) is connected to the FPC (20).

4. The display module with a single-layer FPC and a backlight being grounded together according to claim 3, characterized in that: The opening (23) passes through two sides of the FPC (20), and the opening (23) is in a rectangular shape.

5. The display module with a single-layer FPC and a backlight being grounded together according to claim 4, characterized in that: The opening (23) and the grounding copper leakage area (22) are located on the same straight line, and the grounding copper leakage area (22) can cover the range of the opening (23).

6. The display module with a single-layer FPC and a backlight being grounded together according to claim 5, characterized in that: The end of the ground leakage copper area (22) away from the end connected to the FPC (20) is bent to the back side of the backlight (11) and covers the opening (23).

7. The display module with a single-layer FPC and a backlight being grounded together according to claim 6, characterized in that: The two outer edges of the ground leakage copper area (22) are respectively 1 mm to 2 mm away from the two outer edges opposite to the opening (23).

8. The display module with a single-layer FPC and a backlight being grounded together according to claim 7, characterized in that: A conductive double-sided adhesive (30) is provided on one side of the ground leakage copper area (22) facing the opening (23); the conductive double-sided adhesive (30) is provided along the length direction of the ground leakage copper area (22); one side of the conductive double-sided adhesive (30) is adhered to the ground leakage copper area (22); the other side of the conductive double-sided adhesive (30) is adhered to the backlight (11) through the opening (23), and is adhered to the area of ​​the FPC (20) outside the opening (23).

9. The display module with a single-layer FPC and a backlight being grounded together according to claim 8, characterized in that: The thickness of the conductive double-sided adhesive (30) is 0.1 mm.

10. The display module with a single-layer FPC and a backlight being grounded together according to claim 1, characterized in that: The display module (10) comprises a display screen (12), the display screen (12) is located on one side of the backlight (11), and the FPC (20) is bound to the display screen (12).

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