Display module of backlight FPC with grounding function
By setting a copper-exposed area on the back of the lamp board to contact the metal backplate, the GND pins of the lamp strip and the glass display module are connected, which solves the anti-static problem of the module and backlight display module under the influence of static electricity, and realizes effective release of static electricity and improvement of anti-static performance.
Patent Information
- Application Number
- CN202520475713.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing modules and backlight display modules are easily affected by static electricity. Adding anti-static electronic components increases the process and material costs, and they are also prone to falling off, affecting the anti-static performance.
By setting a copper-exposed area on the back of the lamp board to contact the metal backplate, and connecting the GND pins of the lamp strip and the glass display module, static electricity is conducted to the metal backplate through the GND gold finger pins for discharge, thereby improving the anti-static performance.
It achieves improved antistatic performance without increasing material costs, reduces the risk of electronic components falling off, and enhances the static discharge effect.
Smart Images
Figure CN223911138U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a module and backlight display module field, especially a display module with grounding function backlight FPC. BACKGROUND
[0002] When the module and the backlight display module are affected by static electricity, the LED, FPCA or PCBA and LCD are affected, and the product use function is affected. At present, in the structure of the mobile phone, tablet computer and notebook computer module and backlight display module, the anti-static electronic element is increased in the circuit, the metal piece of the module and the backlight display module is connected to the ground through the conductive material, and the influence of static electricity on the product is prevented. The conductive material can be aluminum foil, copper foil and shielding material. However, the anti-static electronic element and the conductive material increase the process flow and increase the material cost. In subsequent use, the electronic element is easy to fall off, and the anti-static property of the module and the backlight display module is affected. UTILITY MODEL CONTENT
[0003] In view of the above problems, the utility model provides a display module with grounding function backlight FPC, the LED lamp strip and the display module are connected to the metal back plate, when affected by static electricity, static electricity can be conducted to the metal back plate through the GND golden finger pin, static electricity is released, the anti-static property is improved, and the material cost is reduced.
[0004] The utility model adopts the technical scheme:
[0005] A display module with grounding function backlight FPC, comprising a glass display module, a glue frame for placing the glass display module and a backlight module arranged on the back of the glass display module, the backlight module comprises a light guide plate, the back of the light guide plate is provided with a reflecting sheet, the light inlet of the light guide plate is provided with a lamp strip, and the back of the backlight module is provided with a metal back plate for supporting and protecting;Characterized in that: the lamp strip comprises a lamp plate and an LED lamp group arranged on the lamp plate, the back of the lamp plate is provided with a copper leakage area connected with the metal back plate, and the copper leakage area is connected with the GND pin on the lamp plate.
[0006] Preferably, one end or both ends of the back of the lamp plate are provided with a copper leakage area.
[0007] Preferably, the GND pin in the glass display module is linked and conducted with the GND pin on the lamp plate through welding or a connector.
[0008] Preferably, the GND pin in the glass display module is arranged on the display gold fingers of the display circuit board, the display gold fingers are provided with A pin, GND pin and K pin; the lamp plate ground wire is on the lamp plate gold fingers, the lamp plate gold fingers are provided with A pin, GND pin and K pin; the gold fingers A pin, GND pin and K pin of the lamp plate are in turn connected with the gold fingers A pin, GND pin and K pin of the display circuit board.
[0009] Preferably, the display circuit board is FPC or PCBA; the lamp plate is FPC.
[0010] Preferably, the glass display module and the backlight module are further provided with a backlight film material, the backlight film material comprises a lower diffusion sheet, a lower light enhancement sheet and an upper light enhancement sheet which are stacked in sequence, and a mouth-shaped adhesive is further arranged above the upper light enhancement sheet.
[0011] Compared with the prior art, the display module with the backlight FPC having the grounding function has the advantages that: the copper leakage area in contact with the metal back plate is arranged on the back of the lamp plate, the GND pin of the lamp strip and the glass display module is connected, when affected by static electricity, the static electricity can be conducted to the metal back plate through the GND gold finger pin to release static electricity, improve the anti-static performance, and reduce the material cost. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 An explosion view of the display module with the backlight FPC having the grounding function is provided.
[0013] Figure 2 An explosion view of the backlight module in the display module with the backlight FPC having the grounding function is provided.
[0014] Figure 3 A schematic view of the copper leakage area adhering to the metal back plate in the display module with the backlight FPC having the grounding function is provided.
[0015] Figure 4 A front view of the lamp plate in the display module with the backlight FPC having the grounding function is provided.
[0016] Figure 5 A back view of the lamp plate in the display module with the backlight FPC having the grounding function is provided. DETAILED DESCRIPTION
[0017] The preferred embodiments of the display module with the backlight FPC having the grounding function provided by the utility model are specifically described with reference to the drawings.
[0018] Figures 1 to 5 As shown in the drawings, the preferred embodiments of the display module with the backlight FPC having the grounding function provided by the utility model are specifically described with reference to the drawings.Figures 1 to 5 As shown, the display module with the grounding function backlight FPC includes a glass display module 10, a rubber frame 20 for placing the glass display module, and a backlight module 30 arranged on the back of the glass display module. The backlight module 30 includes a light guide plate 31, the back of the light guide plate 31 is provided with a reflecting sheet 32, the light inlet of the light guide plate 31 is provided with a lamp strip 34, and the back of the backlight module is provided with a metal back plate 40 for supporting and protecting. The lamp strip 34 includes a lamp plate 341 and a LED lamp group 342 arranged on the lamp plate. The back of the lamp plate 341 is provided with a copper leakage area 3411 which is connected with the metal back plate. The GND pin (ground pin) on the display circuit board of the glass display module 10 is connected with the GND pin (ground pin) on the lamp plate. In this way, when affected by static electricity, the static electricity can be conducted to the metal back plate 40 through the GND pin, so as to release the static electricity, improve the anti-static performance, and reduce the material cost. As a preferred embodiment, as shown in the figure, one end or both ends of the back of the lamp plate 341 is provided with a copper leakage area 3411 which is connected with the metal back plate 40 as a grounding end. When affected by static electricity, the static electricity is conducted from the GND pin to the copper leakage area 3411, and then to the metal back plate 40, so as to release the static electricity. Figure 5 As shown, one end or both ends of the back of the lamp plate 341 is provided with a copper leakage area 3411 which is connected with the metal back plate 40 as a grounding end. When affected by static electricity, the static electricity is conducted from the GND pin to the copper leakage area 3411, and then to the metal back plate 40, so as to release the static electricity.
[0019] The lamp strip 34 is covered with a small white film 33, so that all the light on the lamp strip enters the light guide plate 31, and the light is uniform.
[0020] The GND pin on the display circuit board 11 of the glass display module 10 is connected with the GND pin on the lamp plate 341 through welding or a connector. As shown, Figure 1 As shown, the GND pin on the display circuit board 11 of the glass display module 10 is arranged on the display gold finger 12 of the display circuit board 11. The display gold finger 12 is provided with an A pin, a GND pin and a K pin. As shown, Figure 4 As shown, the GND pin on the lamp plate is arranged on the lamp plate gold finger 343. The lamp plate gold finger 343 is provided with an A pin, a GND pin and a K pin. The A pin, the GND pin and the K pin of the lamp plate gold finger are connected with the A pin, the GND pin and the K pin of the display circuit board in sequence. After the glass display module 10 and the backlight module 30 are assembled, a module display module is formed. When the module and the backlight display module are affected by static electricity, the static electricity can be conducted to the metal shell of the module and the backlight display module through the GND pin, so as to release the static electricity. The display circuit board 11 is an FPC or a PCBA. The lamp plate is an FPC.
[0021] As shown, Figure 1As shown, the glass display module 10 is further provided with a backlight film material 50 between the glass display module 10 and the backlight module 30, the backlight film material 50 comprises a lower diffusion sheet 51, a lower light enhancement sheet 52 and an upper light enhancement sheet 53 which are sequentially stacked, and a mouth-shaped adhesive 54 is further arranged above the upper light enhancement sheet 53.
[0022] In summary, the technical scheme of the utility model can fully and effectively achieve the above-mentioned utility model purposes, the structure and functional principle of the utility model have been fully verified in the embodiments, the expected effects and purposes can be achieved, various changes or modifications can be made to the embodiments of the utility model without departing from the principles and essence of the utility model. Therefore, the utility model includes all the replacements within the range mentioned in the patent application, any equivalent changes within the range of the patent application of the utility model belong to the patent application range of the utility model.
Claims
1. A display module with a backlit FPC having a grounding function, comprising a glass display module, a rubber frame for placing the glass display module, and a back light module arranged on the back of the glass display module, wherein the back light module comprises a light guide plate, the back of the light guide plate is provided with a reflecting sheet, the light inlet of the light guide plate is provided with a lamp strip, and the back of the back light module is provided with a metal back plate for supporting and protecting; characterized in that: The lamp strip comprises a lamp plate and a LED lamp group arranged on the lamp plate, the back of the lamp plate is provided with a copper leakage area which is connected with a metal back plate, the copper leakage area is connected with a GND pin on the lamp plate; the glass display module is provided with a GND pin which is connected with the GND pin of the lamp plate.
2. The display module with a grounded function backlight FPC according to claim 1, characterized in that: One end or both ends of the back of the lamp plate is provided with a copper leakage area.
3. The display module with a grounded function backlight FPC according to claim 1, characterized in that: The GND pin in the glass display module is linked and conducted through welding or a connector with the GND pin on the lamp plate.
4. The display module with a grounded function backlight FPC according to claim 1, characterized in that: The GND pin in the glass display module is arranged on a display gold finger of the display circuit board, the display gold finger is provided with an A pin, a GND pin and a K pin; the grounding wire of the lamp plate is on a lamp plate gold finger, the lamp plate gold finger is provided with an A pin, a GND pin and a K pin; the A pin, the GND pin and the K pin of the gold finger of the lamp plate are sequentially connected with the A pin, the GND pin and the K pin of the gold finger of the display circuit board.
5. The display module with a grounded function backlight FPC according to claim 1, characterized in that: The display circuit board is FPC or PCBA; the lamp plate is FPC.
6. The display module with a grounded function backlight FPC according to claim 1, characterized in that: The glass display module and the backlight module are further provided with a backlight film material, the backlight film material comprises a lower diffusion sheet, a lower light enhancement sheet and an upper light enhancement sheet which are sequentially stacked, and a mouth-shaped adhesive is further arranged above the upper light enhancement sheet.