Double backlight FPC circuit structure
By designing the first AK line and the second AK line connected in parallel on the backlight FPC welding position, the problem of disconnection of the backlight FPC line due to uneven pressure in the prior art is solved, and the connectivity guarantee of the backlight FPC line is achieved.
Patent Information
- Application Number
- CN202420721750.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-09
AI Technical Summary
During the welding process, existing backlight FPC circuits are prone to lift and disconnect one side due to uneven pressure, affecting connectivity.
A dual backlight FPC circuit structure is designed, and by integrating the first and second AK lines in parallel on the backlight FPC welding position, it is ensured that even if one line is disconnected, the other line can still be connected.
It effectively ensures the connectivity of the backlight FPC circuit and ensures the normal use of the backlight, even in the case of uneven pressure during the compression welding process.
Smart Images
Figure CN222356614U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backlight FPC, in particular to a double backlight FPC circuit structure. Background Art
[0002] At present, the existing backlight FPC circuits are generally designed with separate A and K circuits at the welding position, and the welding position is now connected to the motherboard using pressure welding technology. Therefore, once a problem occurs during pressure welding, it is easy to make the pressure on the left and right sides of the welding position unbalanced, resulting in one side warping and affecting the contact of the circuit. Therefore, a dual backlight FPC circuit structure is designed to ensure the connectivity of the backlight FPC circuit. Utility Model Content
[0003] The utility model aims to overcome the deficiencies in the prior art and provide a double backlight FPC circuit structure.
[0004] The purpose of this utility model is achieved through the following technical solutions:
[0005] A dual backlight FPC circuit structure comprises: a backlight board and a backlight FPC; a backlight FPC, wherein the backlight FPC is arranged at the back of the backlight board, and a backlight FPC welding position is arranged at the bottom of the backlight FPC; and a first AK circuit and a second AK circuit are arranged at the bottom of the front of the backlight FPC welding position.
[0006] In one of the embodiments, the backlight FPC welding position is arranged on the right side of the bottom of the backlight FPC, and the backlight FPC welding position and the backlight FPC are electrically connected together through a flexible circuit board.
[0007] In one of the embodiments, a plurality of indicator lights are disposed at the bottom of the front side of the backlight panel, and the plurality of indicator lights are evenly disposed horizontally and equidistantly on the backlight panel.
[0008] In one embodiment, the first AK circuit and the second AK circuit are respectively arranged on the left and right sides of the front side of the backlight FPC welding position.
[0009] In one embodiment, the first AK circuit and the second AK circuit are both designed by combining three conductive copper sheets of the same size, and two copper sheets closer to each other are K1 and K2, while the copper sheet farther away is A.
[0010] In one of the embodiments, the size of the front side of the backlight FPC is smaller than the shape and size of the front side of the backlight panel, and the backlight FPC is electrically connected to the main board.
[0011] In one embodiment, the indicator light is electrically connected to the mainboard, and the indicator light is an LED light.
[0012] In one of the embodiments, the length of the front side of the backlight FPC welding position is smaller than the length of the front side of the backlight FPC, and the position at the bottom of the backlight FPC welding position where the first AK circuit and the second AK circuit are arranged is a hard circuit board.
[0013] In one of the embodiments, the four corners of the front side of the backlight panel are rounded.
[0014] In one of the embodiments, a plurality of heat dissipation copper blocks are disposed on the back of the backlight FPC welding position.
[0015] Compared with the prior art, the utility model has at least the following advantages:
[0016] The dual backlight FPC circuit structure of the utility model integrates the first AK circuit and the second AK circuit on the backlight FPC welding position, so that the backlight FPC of the present technology can have dual A and K circuits, and the two circuits are connected in parallel. In this way, even if the pressure is uneven on the left and right sides during the FPC pressure welding process, resulting in one side being lifted and disconnected, the circuit on the other side can still be connected to ensure the normal use of the backlight. Therefore, the dual backlight FPC circuit structure achieves the purpose of ensuring the connectivity of the backlight FPC circuit. 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 dual backlight FPC circuit structure of the utility model;
[0019] Figure 2 It is a partial front view schematic diagram of the dual backlight FPC circuit structure of the utility model.
[0020] In the figure: 1, backlight board; 11, backlight FPC; 12, indicator light; 13, backlight FPC welding position; 131, first AK circuit; 132, second AK circuit. DETAILED DESCRIPTION
[0021] 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.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] like Figure 1-2 As shown, a dual backlight FPC circuit structure includes: a backlight board 1 and a backlight FPC 11; the backlight FPC 11 is arranged at the back of the backlight board 1, and a backlight FPC welding position 13 is arranged at the bottom of the backlight FPC 11; the backlight FPC welding position 13, and a first AK circuit 131 and a second AK circuit 132 are arranged at the bottom of the front of the backlight FPC welding position 13. It should be noted that the circuit design between the first AK circuit 131 and the second AK circuit 132 is a parallel design, so that when one of the first AK circuit 131 and the second AK circuit 132 is damaged, the other circuit can still be connected and used normally, thereby ensuring that the backlight FPC 11 and the backlight can be connected normally.
[0026] like Figure 1-2As shown, in one embodiment, the backlight FPC welding position 13 is set on the right side of the bottom of the backlight FPC 11, and the backlight FPC welding position 13 and the backlight FPC 11 are electrically connected through the flexible circuit board. It should be noted that the backlight FPC welding position 13 can be bent to the back of the backlight FPC 11, and the backlight FPC welding position 13 and the backlight panel 1 are welded together.
[0027] like Figure 1-2 As shown, in one embodiment, a plurality of indicator lights 12 are arranged at the bottom of the front of the backlight panel 1, and the plurality of indicator lights 12 are evenly arranged horizontally and equidistantly on the backlight panel 1. The indicator lights 12 are electrically connected to the mainboard, and the indicator lights 12 are LED lights. It should be noted that the color displayed by the indicator lights 12 can be set according to the mainboard.
[0028] like Figure 1-2 As shown in FIG. 1 , in one embodiment, the first AK circuit 131 and the second AK circuit 132 are respectively arranged on the left and right sides of the front of the backlight FPC welding position 13. The first AK circuit 131 and the second AK circuit 132 are both designed by combining three conductive copper sheets of the same size, and the two copper sheets closer to each other are K1 and K2, and the copper sheet farther away is A. It should be noted that the shapes of the copper sheets K1, K2 and A are
[0029] like Figure 1-2 As shown, in one embodiment, the size of the front of the backlight FPC 11 is smaller than the shape and size of the front of the backlight board 1, and the backlight FPC 11 is electrically connected to the main board. The length of the front of the backlight FPC welding position 13 is smaller than the length of the front of the backlight FPC 11, and the position where the first AK circuit 131 and the second AK circuit 132 are set at the bottom of the backlight FPC welding position 13 is a hard circuit board. It should be noted that this design can make the backlight FPC welding position 13 not easily deformed.
[0030] like Figure 1-2 As shown in one embodiment, the four corners of the front side of the backlight plate 1 are rounded. It should be noted that this design enhances its safety.
[0031] like Figure 1-2 As shown in one embodiment, a plurality of heat dissipation copper blocks are arranged at the back of the backlight FPC welding position 13. It should be noted that this design enhances the heat dissipation capability at the backlight FPC welding position 13.
[0032] 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 dual backlight FPC circuit structure, characterized in that: include: Backlight plate (1) and backlight FPC (11); A backlight FPC (11), wherein the backlight FPC (11) is arranged on the back of the backlight panel (1), and a backlight FPC welding position (13) is arranged at the bottom of the backlight FPC (11); A backlight FPC welding position (13), wherein a first AK circuit (131) and a second AK circuit (132) are arranged at the bottom of the front side of the backlight FPC welding position (13).
2. The dual backlight FPC circuit structure according to claim 1, characterized in that: The backlight FPC welding position (13) is arranged on the right side of the bottom of the backlight FPC (11), and the backlight FPC welding position (13) and the backlight FPC (11) are electrically connected together via a flexible circuit board.
3. The dual backlight FPC circuit structure according to claim 1, characterized in that: A plurality of indicator lights (12) are arranged at the bottom of the front side of the backlight panel (1), and the plurality of indicator lights (12) are evenly arranged at equal distances horizontally on the backlight panel (1).
4. The dual backlight FPC circuit structure according to claim 1, characterized in that: The first AK circuit (131) and the second AK circuit (132) are respectively arranged on the left and right sides of the front side of the backlight FPC welding position (13).
5. The dual backlight FPC circuit structure according to claim 1, characterized in that: The first AK circuit (131) and the second AK circuit (132) are both designed by combining three conductive copper sheets of the same size, and two copper sheets closer to each other are K1 and K2, while the copper sheet farther away is A.
6. The dual backlight FPC circuit structure according to claim 1, characterized in that: The size of the front side of the backlight FPC (11) is smaller than the shape and size of the front side of the backlight board (1), and the backlight FPC (11) is electrically connected to the main board.
7. The dual backlight FPC circuit structure according to claim 3, characterized in that: The indicator light (12) is electrically connected to the mainboard, and the indicator light (12) is an LED light.
8. The dual backlight FPC circuit structure according to claim 1, characterized in that: The length of the front side of the backlight FPC welding position (13) is less than the length of the front side of the backlight FPC (11), and the position at the bottom of the backlight FPC welding position (13) where the first AK circuit (131) and the second AK circuit (132) are arranged is a hard circuit board.
9. The dual backlight FPC circuit structure according to claim 1, characterized in that: The four corners of the front side of the backlight plate (1) are rounded.
10. The dual backlight FPC circuit structure according to claim 1, characterized in that: A plurality of heat dissipation copper blocks are arranged at the back of the backlight FPC welding position (13).