Wearable product without bending backlight FPC
By setting a welding area on the binding end of the main screen FPC, the backlight FPC is soldered into the binding end of the main screen FPC, the problem of pulling the backlight module by bending the backlight FPC is solved, ensuring the stable performance of the backlight module.
Patent Information
- Application Number
- CN202422038354.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-21
AI Technical Summary
In the prior art, the backlight FPC of the wearable product is subjected to a greater force during bending, which affects the performance of the backlight module.
Design a wearable product that does not require bent backlight FPC. By setting a welding area on the binding end of the main screen FPC, the backlight FPC is soldered to the bound end of the main screen FPC to avoid bent operations.
It effectively avoids the pulling of the backlight FPC on the backlight module, ensuring stable performance of the backlight module.
Smart Images
Figure CN223092316U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wearable devices, in particular to a wearable product that does not require bending of the backlight FPC. Background Art
[0002] Currently, there is more and more intelligence. With the development of technology, intelligence can be seen everywhere in people's lives. Smart wearable products have been very popular in recent years. There are various styles of smart watches and bracelets, which are not only used as watch sports devices but also have a certain accessory function. Wearable products usually include a display screen and a backlight. An FPC is usually bonded to the display screen and the backlight, and the FPC is used to connect to the customer main board to ensure the normal use of the wearable product. After the FPC is bonded to the display screen and the backlight, a bending operation is required to bend the FPC of the display screen and the backlight to the back of the backlight. The FPC on the backlight has a relatively large stress on the backlight after bending, which will pull the backlight, thus affecting the performance of the backlight. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a wearable product that does not require bending of the backlight FPC.
[0004] The purpose of the utility model is achieved by the following technical solutions:
[0005] A wearable product that does not require bending of the backlight FPC, comprising: a display screen and a backlight module, the display screen and the backlight module are assembled and fixed, a main screen FPC is bonded to the display screen, a backlight FPC is bonded to the backlight module, a welding area for welding the backlight FPC is provided at the bonding position where the main screen FPC is bonded to the display screen, the backlight FPC is welded to the welding area, the backlight FPC is welded to the position where the main screen FPC is bonded to the display screen, and the backlight FPC does not need to be bent.
[0006] In one embodiment, one end of the main screen FPC bonded to the display screen is a bonding end, and the welding area is located at the bonding end.
[0007] In one embodiment, the backlight FPC does not extend beyond the bonding end, and the position of the backlight FPC corresponds to the welding area.
[0008] In one embodiment, a backlight pad is provided on the backlight FPC, and the backlight pad is butt-welded to the welding area.
[0009] In one embodiment, the size of the welding area is adapted to the size of the backlight pad.
[0010] In one embodiment, a plurality of gold fingers are provided on the binding end, and the plurality of gold fingers are used for binding the main screen FPC and the display screen. The welding area is located on one side of the plurality of gold fingers, and the welding area is located near one edge of the binding end.
[0011] In one embodiment, the welding area is located on the back surface of the main screen FPC, and welding traces are provided on the welding area for welding the backlight pads.
[0012] In one embodiment, two welding lines are provided on the backlight pad. The routing structures of the two welding lines are the same. There are two welding traces in the welding area. The arrangement structures of the two welding traces and the two welding lines are the same. The two welding traces are respectively welded in alignment with the two welding lines.
[0013] In one embodiment, solder vias are provided on both of the two welding lines on the backlight pad, and the solder vias on the two welding lines are arranged alternately.
[0014] In one embodiment, a heat sink for heat dissipation is attached to the front surface of the main screen FPC at a position relative to the welding area.
[0015] Compared with the prior art, the present utility model has at least the following advantages:
[0016] A wearable product without bending the backlight FPC of the present utility model designs the size of the backlight FPC to be a little smaller, and a welding area for welding the backlight FPC is provided on the binding end of the main screen FPC, so that the backlight FPC is welded within the binding end range of the main screen FPC, thereby making the welding position of the backlight FPC located at the position of the main screen FPC on the display screen, avoiding the pulling of the backlight module caused by the bending operation of the backlight FPC. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below.
[0018] Figure 1 It is a front structural schematic diagram of a wearable product without bending the backlight FPC provided by the present utility model;
[0019] Figure 2 For Figure 1 an enlarged schematic diagram of part A in
[0020] Figure 3 It is a partial back structural schematic diagram of the main screen FPC in a wearable product without bending the backlight FPC provided by the present utility model;
[0021] Figure 4 Schematic diagram of the backlight in a wearable product provided by the present utility model that does not require bending the backlight FPC;
[0022] Figure 5 is Figure 4 An enlarged schematic diagram of part B in
[0023] Description of the drawings: 10. Display screen; 20. Backlight module; 30. Main screen FPC; 31. Binding end; 311. Gold finger; 40. Backlight FPC; 41. Backlight pad; 411. Welding wire; 4111. Solder via hole; 50. Welding area; 51. Welding trace; 60. Heat sink. Detailed implementation manners
[0024] To facilitate understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings.
[0025] A wearable product that does not require bending the backlight FPC, referring to Figure 1 , includes a display screen 10 and a backlight module 20, and the display screen 10 and the backlight module 20 are assembled and fixed.
[0026] Referring to Figure 1 and Figure 2 , a main screen FPC 30 is bound to the display screen 10, the main screen FPC 30 is a flexible circuit board, a backlight FPC 40 is bound to the backlight module 20, and one end of the backlight FPC 40 far from the binding to the backlight module 20 is welded to the main screen FPC 30.
[0027] Referring to Figure 1 and Figure 2 , after the backlight FPC 40 is welded to the main screen FPC 30, both the backlight FPC 40 and the main screen FPC 30 need to be bent to the back of the backlight module 20. After bending, the backlight FPC 40 is subjected to greater stress and is likely to pull the backlight module 20, thus affecting the performance of the backlight module 20. Therefore, the backlight FPC 40 in this embodiment does not need to be bent.
[0028] Referring to Figure 1 and Figure 3 , one end of the main screen FPC 30 is bound to the display screen 10, and the backlight FPC 40 is welded to the binding position of the main screen FPC 30 bound to the display screen 10. One end of the main screen FPC 30 bound to the display screen 10 is the binding end 31, and the entire binding end 31 is bound to the display screen 10. The backlight FPC 40 is welded to the binding end 31, so that the welding position of the backlight FPC 40 is located at the position of the main screen FPC 30 on the display screen 10, thus avoiding the bending operation.
[0029] Furthermore, referring to Figure 1 andFigure 3 The size of the backlight FPC 40 does not exceed the binding end 31 of the main screen FPC 30. The backlight FPC 40 is arranged corresponding to the welding area 50. After the backlight module 20 is assembled with the display screen 10, the backlight FPC 40 can be welded to the main screen FPC 30, and bending operations can be avoided.
[0030] Further, referring to Figure 1 and Figure 3 At the binding end 31, a welding area 50 for welding the backlight FPC 40 is provided. On the backlight FPC 40, a backlight pad 41 is provided, and the backlight pad 41 is welded and fixed to the welding area 50 in alignment.
[0031] Referring to Figure 1 and Figure 3 The size of the welding area 50 is adapted to the size of the backlight pad 41, so as to facilitate alignment when the backlight pad 41 is welded to the welding area 50, thereby avoiding deviation in the welding position.
[0032] Referring to Figure 1 and Figure 3 On the binding end 31, a plurality of gold fingers 311 are provided, and the plurality of gold fingers 311 are used to bind the main screen FPC 30 to the display screen 10. The welding area 50 is located on one side of the plurality of gold fingers 311. The welding area 50 is located near one edge of the binding end 31 and corresponds to the position of the backlight FPC 40.
[0033] Further, referring to Figure 1 and Figure 3 The welding area 50 on the binding end 31 is located on the back of the main screen FPC 30. On the welding area 50, a welding trace 51 of the welding area 50 is provided, so that the backlight pad 41 of the backlight FPC 40 is welded to the back of the main screen FPC 30.
[0034] Referring to Figure 4 and Figure 5 On the backlight pad 41, two welding wires 411 are provided. The wiring structures of the two welding wires 411 are the same. There are two welding traces 51 in the welding area 50 of the welding area 50. The arrangement structures of the two welding traces 51 are the same as those of the two welding wires 411 on the backlight pad 41. The two welding traces 51 are respectively welded to the two welding wires 411 on the backlight pad 41 in alignment.
[0035] Further, referring to Figure 4 and Figure 5 On the two welding wires 411 on the backlight pad 41, solder vias 4111 are respectively provided. The solder vias 4111 are circularly provided. The solder vias 4111 on the two welding wires 411 are arranged staggered with each other. The solder vias 4111 are used to pass solder paste when the backlight pad 41 is welded to the welding area 50, so that the backlight pad 41 is welded and fixed to the welding area 50.
[0036] Further, referring to Figure 2 , a heat sink 60 for heat dissipation is attached to the front surface of the main screen FPC 30 relative to the position of the welding area 50. The heat sink 60 is a graphite sheet, and the heat sink 60 is used to dissipate heat when the backlight FPC 40 is welded to the welding area 50, so as to avoid the occurrence of bubbles in the backlight pads 41 of the backlight FPC 40 due to excessive welding temperature.
[0037] By designing the size of the backlight FPC 40 to be a little smaller and providing a welding area 50 for welding the backlight FPC 40 on the binding end 31 of the main screen FPC 30, the backlight FPC 40 is welded within the range of the binding end 31 of the main screen FPC 30, so that the welding position of the backlight FPC 40 is located at the position of the main screen FPC 30 on the display screen 10, thus avoiding the bending operation.
[0038] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A wearable product that does not require bending the backlight FPC, characterized in that, Including: A display screen (10) and a backlight module (20), the display screen (10) and the backlight module (20) are assembled and fixed. A main screen FPC (30) is bonded on the display screen (10), and a backlight FPC (40) is bonded on the backlight module (20). A soldering area (50) for soldering the backlight FPC (40) is provided at the bonding position where the main screen FPC (30) is bonded to the display screen (10). The backlight FPC (40) is soldered to the soldering area (50). The backlight FPC (40) is soldered at the position where the main screen FPC (30) is bonded to the display screen (10), and the backlight FPC (40) does not need to be bent.
2. The wearable product with a backlight FPC that does not need to be bent according to claim 1, characterized in that One end of the main screen FPC (30) bonded to the display screen (10) is a bonding end (31), and the soldering area (50) is located at the bonding end (31).
3. A wearable product without bending the backlight FPC according to claim 2, characterized in that The backlight FPC (40) does not extend beyond the bonding end (31), and the position of the backlight FPC (40) corresponds to that of the soldering area (50).
4. A wearable product without bending the backlight FPC according to claim 3, characterized in that, Backlight pads (41) are provided on the backlight FPC (40), and the backlight pads (41) are welded to the soldering area (50) in alignment.
5. The wearable product without bending the backlight FPC according to claim 4, characterized in that The size of the soldering area (50) is adapted to the size of the backlight pads (41).
6. A wearable product without bending a backlight FPC according to claim 2, characterized in that A plurality of gold fingers (311) are provided on the bonding end (31), and the plurality of gold fingers (311) are used for bonding the main screen FPC (30) and the display screen (10). The soldering area (50) is located on one side of the plurality of gold fingers (311), and the soldering area (50) is located near one side edge of the bonding end (31).
7. A wearable product without bending the backlight FPC according to claim 5, characterized in that, The soldering area (50) is located on the back of the main screen FPC (30), and soldering traces (51) are provided on the soldering area (50) for soldering the backlight pads (41).
8. A wearable product without bending the backlight FPC according to claim 7, characterized in that, Two soldering lines (411) are provided on the backlight pads (41). The routing structures of the two soldering lines (411) are the same. There are two soldering traces (51) in the soldering area (50). The arrangement structures of the two soldering traces (51) and the two soldering lines (411) are the same, and the two soldering traces (51) are respectively welded to the two soldering lines (411) in alignment.
9. A wearable product without bending a backlight FPC according to claim 8, characterized in that Through-tin holes (4111) are formed in both of the two soldering lines (411) on the backlight pads (41), and the through-tin holes (4111) on the two soldering lines (411) are arranged in a staggered manner.
10. A wearable product without bending the backlight FPC according to claim 9, characterized in that, A heat sink (60) for heat dissipation is attached to the front surface of the main screen FPC (30) at a position corresponding to the soldering area (50).