Display module and display device

Patent metadata

Field	Value
Publication number	US-12369255-B2
Application number	US-202218030591-A
Country	US
Kind code	B2
Filing date	Mar 4, 2022
Priority date	Jun 22, 2021
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

The present application provides a display module and a display device. The display module is applied to a glasses-free 3D display device including a drive circuit board, and the drive circuit board includes at least one first connection buckle; the display module includes a display panel and at least one flexible printed circuit board; the flexible printed circuit board includes a first end and a second end opposite to each other, the first end includes a plurality of bonding parts; the display panel includes a plurality of to-be-bonded parts; each of the bonding parts is bonded to a corresponding to-be-bonded part; the second end includes a second connection buckle; and the second connection buckle is clamped and electrically connected with the first connection buckle.

First claim

The invention claimed is:

1. A display module, applied to a glasses-free 3D display device comprising a drive circuit board, the drive circuit board comprising at least one first connection buckle;
wherein the display module comprises a display panel and at least one flexible printed circuit board; the flexible printed circuit board comprises a first end and a second end opposite to each other, wherein the first end comprises a plurality of bonding parts, and the display panel comprises a plurality of to-be-bonded parts, each of the bonding parts being bonded to a corresponding one of the to-be-bonded parts; the second end comprises a second connection buckle, and the second connection buckle is clamped and electrically connected with the first connection buckle;
wherein the display module further comprises at least one first conductive cloth, the flexible printed circuit board comprises a gold finger side and a non-gold finger side opposite to each other; wherein the first conductive cloth is at least partially adhered to a surface of the non-gold finger side of the flexible printed circuit board.

2. The display module according to claim 1 , wherein a size of the first conductive cloth is less than a size of the flexible printed circuit board.

3. The display module according to claim 1 , wherein the first conductive cloth comprises a black conductive coating, a conductive tensile layer and a conductive adhesive layer that are stacked, and the conductive adhesive layer is adhered to the surface of the non-gold finger side.

4. The display module according to claim 1 , wherein the first conductive cloth is provided with a plurality of through holes, and positions of the through holes correspond to a bending area of the flexible printed circuit board.

5. The display module according to claim 1 , wherein the flexible printed circuit board further comprises a supporting plate, wherein the supporting plate and the second connection buckle are arranged to be opposite to each other, the supporting plate being arranged at the non-gold finger side, the second connection buckle being arranged at the gold finger side;
wherein the first conductive cloth is at least partially adhered to the supporting plate and adhered to all areas on the non-gold finger side except for an area where the supporting plate is located.

6. The display module according to claim 5 , wherein the flexible printed circuit board further comprises an anti-electromagnetic layer arranged all areas on the non-gold finger side except for the area where the supporting plate is located, the first conductive cloth is also adhered to the entire anti-electromagnetic layer.

7. The display module according to claim 5 , wherein the flexible printed circuit board further comprises a plurality of copper leakage areas, and the first conductive cloth is grounded through the copper leakage areas.

8. The display module according to claim 1 , further comprising at least one second conductive cloth arranged at an un-bonded side edge of the display panel.

9. The display module according to claim 8 , wherein the first conductive cloth and any of the second conductive cloth are arranged separately.

10. The display module according to claim 9 , wherein the first conductive cloth and the second conductive cloth adjacent to each other are overlapped at a junction, and two adjacent second conductive cloths are overlapped at a junction.

11. The display module according to claim 1 , further comprising a middle frame, a backlight module and a back cover, wherein the backlight module is arranged at a backlight side of the display panel;
wherein the middle frame is fixed to the back cover and configured to support the display panel; the back cover is configured to support the middle frame and the backlight module; and

the backlight module is arranged between the back cover and the display panel.

12. The display module according to claim 11 , wherein the middle frame comprises a plurality of fastening buckles, and the middle frame is clamped with the back cover through the fastening buckles.

13. The display module according to claim 12 , wherein the back cover comprises a base plate and a side plate, and the side plate is arranged around the base plate and connected with the base plate;
wherein the side plate is provided with a plurality of openings on a side close to the base plate, and the fastening buckles are embedded in the openings.

14. The display module according to claim 13 , wherein a material of the back cover comprises GM55.

15. The display module according to claim 14 , wherein a part of the side plate corresponding to an un-bonded side of the display panel comprises a double edge folding structure;
wherein the double edge folding structure comprises a first side edge and a second side edge connected to each other, the second side edge being connected with the base plate, and the openings are arranged on a side of the first side edge close to the base plate.

16. The display module according to claim 11 , wherein the backlight module comprises a reflective fixing tape, a light guide plate and a light bar;
wherein the light bar is arranged on a side edge of the light guide plate, and comprises a plurality of light emitting diodes; the reflective fixing tape comprises a reflective tape and a plurality of fixing parts fixed on the reflective tape, the reflective tape is pasted on the back cover; the fixing parts are arranged between adjacent light emitting diodes; and the plurality of fixing parts are used for fixing the light guide plate to the plurality of light emitting diodes.

17. The display module according to claim 11 , further comprising an adhesive layer arranged between the backlight module and the display panel;
wherein the adhesive layer comprises a first adhesive part extending along a first direction and a second adhesive part extending along a second direction, the first adhesive part and the second adhesive part are not connected, the first direction intersects with the second direction.

18. A display device, comprising a drive circuit board and a display module, wherein the drive circuit board comprises at least one first connection buckle;
wherein the display module comprises a display panel and at least one flexible printed circuit board; the flexible printed circuit board comprises a first end and a second end opposite to each other, wherein the first end comprises a plurality of bonding parts, and the display panel comprises a plurality of to-be-bonded parts, each of the bonding parts being bonded to a corresponding one of the to-be-bonded parts; the second end comprises a second connection buckle, and the second connection buckle is clamped and electrically connected with the first connection buckle;
wherein the display module further comprises at least one first conductive cloth, the flexible printed circuit board comprises a gold finger side and a non-gold finger side opposite to each other; wherein the first conductive cloth is at least partially adhered to a surface of the non-gold finger side of the flexible printed circuit board.

19. The display device according to claim 18 , further comprising a shell;
wherein the shell is arranged on a backlight side of the display module, and a gap exists between the shell and the display module; the flexible printed circuit board of the display module is bent so that the second end of the flexible printed circuit board is arranged on the backlight side of the display module, the drive circuit board is clamped and electrically co

Assignees

• Beijing Boe Display Tech Co
• Boe Technology Group Co Ltd

Inventors

• Chen Yuanye
• Dong Fei
• Li Xiang

Classifications

• H05K1/0281

  Reinforcement details thereof · CPC title

• H05K1/0216

  Reduction of cross-talk, noise or electromagnetic interference (grounding H05K1/0215) · CPC title

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• H05K2201/2009

  Reinforced areas, e.g. for a specific part of a flexible printed circuit · CPC title

• H05K2201/10136

  Liquid Crystal display [LCD] · CPC title