Display panel and display apparatus

Patent metadata

Field	Value
Publication number	US-11570877-B2
Application number	US-202017132510-A
Country	US
Kind code	B2
Filing date	Dec 23, 2020
Priority date	Feb 13, 2020
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A display panel and a display apparatus are disclosed. The display panel comprises: a plurality of signal lines extending in a first direction; at least one first reference voltage bus which extends in a second direction intersecting the first direction; and a plurality of electrostatic discharge units divided into a plurality of electrostatic discharge unit groups, wherein the plurality of electrostatic discharge unit groups are arranged in the second direction and each of the plurality of electrostatic discharge unit groups comprises at least two electrostatic discharge units arranged in the first direction, wherein at least one of the plurality of signal lines is electrically connected to the first reference voltage bus through at least one of the plurality of electrostatic discharge units.

First claim

What is claimed is:

1. A display panel comprising:
a plurality of signal lines extending in a first direction;
at least one first reference voltage bus which extends in a second direction intersecting the first direction; and
a plurality of electrostatic discharge units divided into a plurality of electrostatic discharge unit groups, wherein the plurality of electrostatic discharge unit groups are arranged in the second direction and each of the plurality of electrostatic discharge unit groups comprises at least two electrostatic discharge units arranged in the first direction,
wherein at least one of the plurality of signal lines is electrically connected to the first reference voltage bus through at least one of the plurality of electrostatic discharge units; and
the display panel further comprises:
a second reference voltage bus, wherein each of the plurality of electrostatic discharge unit group comprises: a first electrostatic discharge unit and a second electrostatic discharge unit substantially symmetrically arranged on two sides of the first reference voltage bus in the first direction; and a third electrostatic discharge unit,
wherein the plurality of signal lines are divided into a plurality of signal line groups in one-to-one correspondence with the plurality of electrostatic discharge unit groups, and each of the plurality of signal line groups comprises: a first signal line electrically connected to the first reference voltage bus through the first electrostatic discharge unit of a corresponding one of the plurality of electrostatic discharge unit groups; a second signal line electrically connected to the first reference voltage bus through the second electrostatic discharge unit of the corresponding one of the plurality of electrostatic discharge unit groups; and a third signal line electrically connected to the second reference voltage bus through the third electrostatic discharge unit of the corresponding one of the plurality of electrostatic discharge unit groups.

2. The display panel of claim 1 , wherein:
each of the plurality of electrostatic discharge unit groups comprises a first electrostatic discharge unit and a second electrostatic discharge unit substantially symmetrically arranged on two sides of the first reference voltage bus in the first direction.

3. The display panel of claim 2 , wherein:
the plurality of signal lines are divided into a plurality of signal line groups in one-to-one correspondence with the plurality of electrostatic discharge unit groups, and each of the plurality of signal line groups comprises: a first signal line electrically connected to the first reference voltage bus through the first electrostatic discharge unit of a corresponding one of the plurality of electrostatic discharge unit groups; and a second signal line electrically connected to the first reference voltage bus through the second electrostatic discharge unit of the corresponding one of the plurality of electrostatic discharge unit groups.

4. The display panel of claim 3 , wherein:
there is at least one of the plurality of signal lines between every two adjacent groups of the plurality of electrostatic discharge unit groups.

5. The display panel of claim 1 , wherein:
the second reference voltage bus extends in the second direction, and the first reference voltage bus and the second reference voltage bus are arranged side by side in the first direction, and the first electrostatic discharge units and the third electrostatic discharge units are located between the first reference voltage bus and the second reference voltage bus.

6. The display panel of claim 1 , wherein:
the display panel comprises a display area, the second reference voltage bus is located on a side of the first reference voltage bus away from the display area, and there are at least the first signal line and the third signal line between every two adjacent groups of the plurality of electrostatic discharge unit groups.

7. The display panel of claim 1 , wherein:
the at least one first reference voltage bus comprises two first reference voltage buses, each of the plurality of electrostatic discharge unit groups comprises: a first electrostatic discharge unit and a second electrostatic discharge unit substantially symmetrically arranged on two sides of one of the two first reference voltage buses in the first direction; and a third electrostatic discharge unit and a fourth electrostatic discharge unit substantially symmetrically arranged on two sides of the other of the two first reference voltage buses in the first direction, and
the plurality of signal lines are divided into a plurality of signal line groups in one-to-one correspondence with the plurality of electrostatic discharge unit groups, and each of the plurality of signal line groups comprises: a first signal line electrically connected to the one of the two first reference voltage buses through the first electrostatic discharge unit of a corresponding one of the plurality of electrostatic discharge unit groups; a second signal line electrically connected to the one of the two first reference voltage buses through the second electrostatic discharge unit of the corresponding one of the plurality of electrostatic discharge unit groups; a third signal line electrically connected to the other of the two first reference voltage buses through the third electrostatic discharge unit of the corresponding one of the plurality of electrostatic discharge unit groups; and a fourth signal line electrically connected to the other of the two first reference voltage buses through the fourth electrostatic discharge unit of the corresponding one of the plurality of electrostatic discharge unit groups.

8. The display panel of claim 7 , wherein:
the two first reference voltage buses are arranged side by side in the first direction, the second electrostatic discharge unit and the third electrostatic discharge units are disposed between the two first reference voltage buses, the display panel comprises a display area, the fourth electrostatic discharge units are disposed adjacent to the display area, and there are at least the first signal line, the second signal line, and the third signal line between every two adjacent groups of the plurality of electrostatic discharge unit groups.

9. The display panel of claim 1 , wherein:
an electric potential of the first reference voltage bus and an electric potential of the second reference voltage bus have a same numerical value.

10. The display panel of claim 1 , wherein:
the signal line is a data line, and both the plurality of electrostatic discharge units, and the at least one first reference voltage bus are disposed in a non-display area opposite to a bonding area.

11. The display panel of claim 1 , wherein:
the signal line is a gate line, and both the plurality of electrostatic discharge units, and the at least one first reference voltage bus are disposed in a non-display area in a direction in which the gate line extends.

12. The display panel of claim 11 , further comprising:
a second reference voltage bus, wherein each of the plurality of electrostatic discharge unit groups comprises: a first electrostatic discharge unit and a second electrostatic discharge unit substantially symmetrically arranged on two sides of the first reference voltage bus in the first direction; and a third electrostatic discharge unit,
wherein the plurality of gate lines are divided into a plurality of gate line groups in one-to-one correspondence with the plurality of electrostatic discharge unit groups, and each of the plurality of gate line groups comprises: a first gate line electrically connected to the first refer

Assignees

• Boe Technology Group Co Ltd

Inventors

• Xu Pan
• Li Yongqian
• Wang Guoying
• Zhang Dacheng
• Liu Lang

Classifications

• G09G3/3648

  using an active matrix (G09G3/367 - G09G3/3696 take precedence) · CPC title

• H05F3/00 Primary

  Carrying-off electrostatic charges ({from shoes A43B7/36}; from living beings A61N1/14; {from tyres B60C19/08; from vehicles B60R16/06; from aircraft B64D45/02; from large containers B65D90/46}) · CPC title

• H01L27/0248

  Electricity · mapped topic

• G06F1/26

  Power supply means, e.g. regulation thereof (for memories G11C) · CPC title

• G09F9/30

  in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) · CPC title