A new FPC board

Abstract

The utility model relates to a novel FPC board, including FPC board body, EVA bubble cotton layer and PET color film layer, EVA bubble cotton layer sets up between FPC board body and PET color film layer, EVA bubble cotton layer and PET color film layer are provided with the adhesive layer 40 between them, the section of FPC board body, EVA bubble cotton layer and adhesive layer is less than the section of PET color film layer, the edge distance of FPC board body, EVA bubble cotton layer and adhesive layer edge to PET color film layer is 0.2mm 0.04mm, through setting up the distance of FPC board body, EVA bubble cotton layer and adhesive layer edge to PET color film layer's edge as 0.2mm 0.04mm, can make FPC board body, EVA bubble cotton layer and adhesive layer stick to PET color film layer have enough buffer space, avoided the situation that FPC board body, EVA bubble cotton layer and adhesive layer stick to the deviation and lead to the deviation to occur when producing.

Description

Technical Field

[0001] This utility model relates to the field of FPC board technology, and in particular to a novel FPC board. Background Technology

[0002] FPC boards typically have component areas, bonding areas, bending areas, and connection areas. The component areas are used to mount electronic components. The bonding areas are located on one side of the component areas and are connected to the component areas via the bending areas. The connection areas connect to the other side of the component areas. The bonding areas are used to bond with the LCD glass, and the connection areas are used to connect with the mobile phone motherboard. In existing FPC boards, the component and connection areas have low strength and are easily torn. The foam and color filter areas are the same size, which can easily lead to deviations during production. Utility Model Content

[0003] Therefore, it is necessary to provide a new type of FPC board to address the issues that some FPC boards have low strength in the component and connection areas, making them prone to tearing, and the fact that the foam and color film areas are the same size, which can easily lead to deviations during production.

[0004] A novel FPC board includes an FPC board body, an EVA foam layer, and a PET color filter layer. The EVA foam layer is disposed between the FPC board body and the PET color filter layer. An adhesive backing layer is disposed between the EVA foam layer and the PET color filter layer. The cross-sections of the FPC board body, the EVA foam layer, and the adhesive backing layer are smaller than the cross-section of the PET color filter layer. The distance from the edge of the FPC board body, the EVA foam layer, and the adhesive backing layer to the edge of the PET color filter layer is 0.2mm-0.04mm.

[0005] In one embodiment, the EVA foam layer is provided with a cushioning section.

[0006] In one embodiment, the thickness of the buffer portion is 0.25mm-0.55mm.

[0007] In one embodiment, a reinforcing layer is provided between the FPC board body and the EVA foam layer.

[0008] In one embodiment, the reinforcing layer is a copper layer.

[0009] In one embodiment, the copper layer is configured as a mesh.

[0010] In one embodiment, the PET color film layer has a thickness of 0.2 mm.

[0011] In one embodiment, a chip is disposed on the FPC board body.

[0012] The aforementioned novel FPC board includes an FPC board body, an EVA foam layer, and a PET color film layer. The EVA foam layer is disposed between the FPC board body and the PET color film layer, and an adhesive layer is disposed between the EVA foam layer and the PET color film layer. The cross-sections of the FPC board body, EVA foam layer, and adhesive layer are smaller than the cross-section of the PET color film layer. The distance from the edge of the FPC board body, EVA foam layer, and adhesive layer to the edge of the PET color film layer is 0.2mm-0.04mm. By setting the distance from the edge of the FPC board body, EVA foam layer, and adhesive layer to the edge of the PET color film layer to 0.2mm-0.04mm, sufficient buffer space is provided when the FPC board body, EVA foam layer, and adhesive layer are attached to the PET color film layer, avoiding deviations caused by misalignment during production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the FPC board body of a novel FPC board according to one embodiment;

[0014] Figure 2 This is a schematic diagram of the EVA foam layer of a novel FPC board according to one embodiment;

[0015] Figure 3 This is a schematic diagram of the PET color filter layer of a novel FPC board according to one embodiment;

[0016] Figure 4 This is a schematic diagram of the bonding structure of the EVA foam layer and the adhesive backing layer of a novel FPC board according to one embodiment.

[0017] Figure 5 This is a schematic diagram of the adhesive backing layer of a novel FPC board according to one embodiment. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] like Figures 1-5As shown, a novel FPC board includes an FPC board body 10, an EVA foam layer 20, and a PET color filter layer 30. The EVA foam layer 20 is disposed between the FPC board body 10 and the PET color filter layer 30. An adhesive backing layer 40 is disposed between the EVA foam layer 20 and the PET color filter layer 30. The cross-sections of the FPC board body 10, the EVA foam layer 20, and the adhesive backing layer 40 are smaller than the cross-section of the PET color filter layer 30. The distance from the edge of the FPC board body 10, the EVA foam layer 20, and the adhesive backing layer 40 to the edge of the PET color filter layer 30 is 0.2mm-0.04mm. For example, the outer contours of the FPC board body 10, EVA foam layer 20 and adhesive backing layer 40 are the same and overlap, and the distance from the edge of the FPC board body 10, EVA foam layer 20 and adhesive backing layer 40 to the edge of the PET color film layer 30 is 0.3mm. This can effectively avoid deviations caused by misalignment of the FPC board body 10, EVA foam layer 20 and adhesive backing layer 40 during production.

[0020] In one embodiment, the EVA foam layer 20 is provided with a buffer portion 210. For example, by providing a buffer portion 210 in the EVA foam layer 20, the display window of the buffer portion 210 is made as large as possible, and sufficient displacement space is reserved for the display content corresponding to each window, so as to prevent adverse situations from occurring during bending and film application.

[0021] In one embodiment, the thickness of the buffer portion 210 is 0.25mm-0.55mm. For example, the thickness of the buffer portion 210 can be set to 0.3mm to allow sufficient displacement space and prevent damage to the film during bending and application.

[0022] In one embodiment, a reinforcing layer (not shown) is provided between the FPC board body 10 and the EVA foam layer 20. For example, the reinforcing layer is provided in the non-trace area between the FPC board body 10 and the EVA foam layer 20. By providing the reinforcing layer, which is a copper layer arranged in a grid pattern, and in conjunction with the buffer portion 210 provided in the EVA foam layer 20, the strength of the FPC board body 10 is increased and it is not easy to tear.

[0023] In one embodiment, the thickness of the PET color filter layer 30 is 0.2 mm. For example, the thickness of the PET color filter layer 30 can also be set to 0.1 mm, 0.125 mm, 0.188 mm, 0.2 mm, or 0.25 mm, and the thickness of the PET color filter layer 30 can be designed according to actual needs.

[0024] In one embodiment, a chip 110 is disposed on the FPC board body 10. The chip 110 may be an HTR3229 communication chip 110, and the chip 110 is configured to be a 16×8 or 15×9 array LED driver chip 110 that can be programmed via a 1MHz I2C interface. Each LED supports 8-bit PWM data for independent dimming, and each CSx has 8 bits of DC scan data to support 256 levels of linear PWM dimming for each point, and each CSx supports 256 levels of adjustable DC current.

[0025] The aforementioned novel FPC board includes an FPC board body 10, an EVA foam layer 20, and a PET color filter layer 30. The EVA foam layer 20 is disposed between the FPC board body 10 and the PET color filter layer 30. An adhesive backing layer 40 is disposed between the EVA foam layer 20 and the PET color filter layer 30. The cross-sections of the FPC board body 10, the EVA foam layer 20, and the adhesive backing layer 40 are smaller than the cross-section of the PET color filter layer 30. The edges of the FPC board body 10, the EVA foam layer 20, and the adhesive backing layer 40 extend to the PET color filter layer. The edge distance of 30 is 0.2mm-0.04mm. By setting the distance from the edge of the FPC board body 10, EVA foam layer 20 and adhesive backing layer 40 to the edge of the PET color film layer 30 to 0.2mm-0.04mm, there is enough buffer space when the FPC board body 10, EVA foam layer 20 and adhesive backing layer 40 are attached to the PET color film layer 30, avoiding the situation where the FPC board body 10, EVA foam layer 20 and adhesive backing layer 40 are misaligned during production, which would cause deviation.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel FPC board, characterized in that, The device includes an FPC board body, an EVA foam layer, and a PET color filter layer. The EVA foam layer is disposed between the FPC board body and the PET color filter layer. An adhesive backing layer is disposed between the EVA foam layer and the PET color filter layer. The cross-sections of the FPC board body, the EVA foam layer, and the adhesive backing layer are smaller than the cross-section of the PET color filter layer. The distance from the edge of the FPC board body, the EVA foam layer, and the adhesive backing layer to the edge of the PET color filter layer is 0.2mm-0.04mm.

2. The novel FPC board according to claim 1, characterized in that, The EVA foam layer is provided with a cushioning section.

3. The novel FPC board according to claim 2, characterized in that, The thickness of the buffer section is 0.25mm-0.55mm.

4. The novel FPC board according to claim 1, characterized in that, A reinforcing layer is provided between the FPC board body and the EVA foam layer.

5. The novel FPC board according to claim 4, characterized in that, The reinforcing layer is a copper layer.

6. The novel FPC board according to claim 5, characterized in that, The copper layer is configured in a grid pattern.

7. The novel FPC board according to claim 1, characterized in that, The thickness of the PET color film layer is 0.2 mm.

8. The novel FPC board according to claim 1, characterized in that, The FPC board body is equipped with chips.

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