Display unit and display apparatus

Patent metadata

Field	Value
Publication number	US-11846853-B2
Application number	US-202117361352-A
Country	US
Kind code	B2
Filing date	Jun 29, 2021
Priority date	Dec 3, 2020
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

Provided are a display unit and a display apparatus, the display unit includes a back plate and a print circuit board disposed on the back plate, wherein the print circuit board is connected to the back plate through a screw, and is provided with a first electrostatic discharge region and a first electrostatic discharge unit; the first electrostatic discharge region is connected to the back plate through the screw to form a first electrostatic discharge channel, and the first electrostatic discharge unit is connected to the back plate to form a second electrostatic discharge channel.

First claim

What we claim is:

1. A display unit, comprising a first flexible print board, a back plate and a print circuit board disposed on the back plate, wherein
the print circuit board is connected to the back plate through a screw, and is provided with a first electrostatic discharge region and a first electrostatic discharge unit; and
the first electrostatic discharge region is connected to the back plate through the screw to form a first electrostatic discharge channel, and the first electrostatic discharge unit is connected to the back plate to form a second electrostatic discharge channel;
wherein the screw is a semi-threaded screw to form a moving gap between the print circuit board and the back plate;
wherein the first electrostatic discharge unit comprises a first electrostatic discharge pin;
the back plate is provided with a back light unit, and the back light unit is provided with a second electrostatic discharge unit;
the second electrostatic discharge unit comprises a transient voltage suppression (TVS) element disposed on the back light unit, and a second electrostatic discharge region formed on the back light unit;
the back light unit is provided with a gold finger, and the gold finger is provided with a second electrostatic discharge pin;
the first electrostatic discharge region and the first electrostatic discharge unit are separated and disconnected;
static electricity on the print circuit board is discharged to the back plate through the first electrostatic discharge pin, the first flexible print board, the second electrostatic discharge pin, the TVS element and the second electrostatic discharge region in turn to forming the second electrostatic discharge channel.

2. The display unit of claim 1 , wherein the first electrostatic discharge region is a conduction region on the print circuit board.

3. The display unit of claim 1 , wherein
the second electrostatic discharge unit is connected to the back plate and the first electrostatic discharge unit is connected to the second electrostatic discharge unit through the first flexible print board.

4. The display unit of claim 3 , wherein the second electrostatic discharge region is connected to the back plate.

5. The display unit according to claim 4 , wherein the second electrostatic discharge region is a conduction region on the back light unit.

6. The display unit of claim 3 , wherein the back light unit further comprises a lamp panel and a light emitting unit disposed on the lamp panel, and the second electrostatic discharge unit is disposed on the lamp panel.

7. The display unit of claim 4 , wherein the first electrostatic discharge unit is connected to the second electrostatic discharge region through the TVS element.

8. The display unit of claim 3 , wherein
the print circuit board is provided with a back light connector;
the back light connector is connected to the back light unit through the first flexible print board;
the first electrostatic discharge unit comprises the first electrostatic discharge pin disposed in the back light connector; and
the first electrostatic discharge pin is connected to the second electrostatic discharge unit through the first flexible print board.

9. The display unit of claim 8 , wherein the back light connector comprises a first back light pin, and the first back light pin is connected to the back light unit through the first flexible print board.

10. The display unit of claim 8 , wherein
the second electrostatic discharge pin is connected to the second electrostatic discharge unit, and the first flexible print board connects the first electrostatic discharge pin to the second electrostatic discharge pin.

11. The display unit of claim 1 , wherein
the print circuit board is provided with through holes, the back plate is correspondingly provided with a lug;
the screw passes through the through holes and is connected to the lug; and
the first electrostatic discharge region is disposed around the through holes and is connected to the screw.

12. The display unit of claim 11 , wherein the through holes are located at corners on both sides of the print circuit board.

13. The display unit of claim 1 , wherein the first electrostatic discharge unit comprises a third electrostatic discharge region formed on the print circuit board, and the third electrostatic discharge region is located in the middle of the print circuit board and is connected to the back plate.

14. The display unit of claim 13 , wherein the third electrostatic discharge region is a conduction region on the print circuit board.

15. The display unit of claim 1 , wherein the back plate is provided with a display substrate, and the print circuit board is connected to the display substrate through a second flexible print board.

16. The display unit of claim 1 , wherein the print circuit board is provided with components, and the components are connected to the first electrostatic discharge region and the first electrostatic discharge unit through ground wires.

17. A display apparatus, comprising a display unit, wherein
the display unit comprises a back plate and a print circuit board disposed on the back plate;
the print circuit board is connected to the back plate through a screw, and is provided with a first electrostatic discharge region and a first electrostatic discharge unit; and
the first electrostatic discharge region is connected to the back plate through the screw to form a first electrostatic discharge channel, and the first electrostatic discharge unit is connected to the back plate to form a second electrostatic discharge channel;
wherein the screw is a semi-threaded screw to form a moving gap between the print circuit board and the back plate;
wherein the first electrostatic discharge unit comprises a first electrostatic discharge pin;
the back plate is provided with a back light unit, and the back light unit is provided with a second electrostatic discharge unit;
the second electrostatic discharge unit comprises a transient voltage suppression (TVS) element disposed on the back light unit, and a second electrostatic discharge region formed on the back light unit;
the back light unit is provided with a gold finger, and the gold finger is provided with a second electrostatic discharge pin;
the first electrostatic discharge region and the first electrostatic discharge unit are separated and disconnected;
static electricity on the print circuit board is discharged to the back plate through the first electrostatic discharge pin, the first flexible print board, the second electrostatic discharge pin, the TVS element and the second electrostatic discharge region in turn to forming the second electrostatic discharge channel.

18. The display apparatus of claim 17 , wherein
the second electrostatic discharge unit is connected to the back plate and the first electrostatic discharge unit is connected to the second electrostatic discharge unit through a first flexible print board.

19. The display apparatus of claim 17 , wherein
the print circuit board is provided with through holes, and the back plate is correspondingly provided with a lug;
the screw passes through the through holes and is connected to the lug; and
the first electrostatic discharge region is disposed around the through holes and is connected to the screw.

Assignees

• Chongqing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Cao Qi
• Shu Yong
• Wang Xinlei
• Wang Ming
• Wang Nan
• Jiang Junjie
• Wang Xian

Classifications

• G02F1/136204 Primary

  Arrangements to prevent high voltage or static electricity failures · CPC title

• G06F1/1658

  related to the mounting of internal components, e.g. disc drive or any other functional module · CPC title

• G09F9/35 Primary

  being liquid crystals (G09F9/302 takes precedence; liquid crystal materials C09K19/00; {liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13}) · CPC title

• G02F1/133314 Primary

  Back frames · CPC title

• H05F3/02

  by means of earthing connections · CPC title