Display panel, display device and debugging method thereof

Patent metadata

Field	Value
Publication number	US-12027134-B2
Application number	US-202117768828-A
Country	US
Kind code	B2
Filing date	Apr 20, 2021
Priority date	Apr 20, 2021
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

A display panel ( 20 ), a display device and a debugging method thereof are provided. The display panel ( 20 ) includes: a base substrate ( 1 ), including a display region (A) and a non-display region (B) surrounding the display region (A), the non-display region (B) including a binding region (C) located on one side of the display region (A); and a plurality of sub-pixels ( 2 ), located in the display region (A). Areas of pixel aperture regions of the plurality of sub-pixels ( 2 ) tend to increase in a direction from the binding region (C) to the display region (A).

First claim

What is claimed is:

1. A display panel, comprising:
a base substrate, comprising:
a display region; and
a non-display region surrounding the display region;
wherein the non-display region comprises a binding region on one side of the display region; and

a plurality of sub-pixels, in the display region;
wherein areas of pixel aperture regions of the plurality of sub-pixels tend to increase in a direction from the binding region to the display region;
the display region is divided into a plurality of sub-display regions in the direction from the binding region to the display region;
areas of pixel aperture regions of sub-pixels in a same sub-display region are same; and
areas of pixel aperture regions of sub-pixels in different sub-display regions gradually increase in the direction from the binding region to the display region.

2. The display panel according to claim 1 , wherein a region occupied by each of the plurality sub-pixels comprises:
the pixel aperture region; and
a light-shielding region surrounding the pixel aperture region;
wherein areas of the regions occupied by the respective sub-pixels are same;
a color filter is disposed in the pixel aperture region;
a light-shielding part is disposed in the light-shielding region; and
in the direction from the binding region to the display region, widths of the light-shielding parts of the plurality of sub-pixels tend to decrease.

3. The display panel according to claim 2 , wherein the display region comprises data lines and gate lines disposed crosswise; and
the binding region is disposed on one side of an extending direction of the data lines, and in the direction from the binding region to the display region, widths of portions, for shielding the gate lines, in the light-shielding parts in the extending direction of the data lines tend to decrease.

4. The display panel according to claim 2 , wherein the display region comprises data lines and gate lines disposed crosswise; and
the binding region is disposed on one side of an extending direction of the gate lines, and in the direction from the binding region to the display region, widths of portions, for shielding the data lines, in the light-shielding parts in the extending direction of the gate lines tend to decrease.

5. The display panel according to claim 2 , wherein in a direction perpendicular to the direction from the binding region to the display region, widths of the light-shielding parts of the sub-pixels are same.

6. A display device, comprising:
a backlight module; and
the display panel according to claim 1 ;
wherein the display panel is on a light-emitting side of the backlight module.

7. A debugging method of the display device according to claim 6 , comprising:
inputting a pure color picture to the display panel; and
loading driving voltages tending to increase to regions, corresponding to the sub-pixels in the display region, of the backlight module in the direction from the binding region to the display region, such that a brightness difference between the sub-pixels is less than a preset threshold.

8. The debugging method according to claim 7 , wherein
said loading the driving voltages tending to increase to the regions, corresponding to the sub-pixels in the display region, of the backlight module in the direction from the binding region to the display region, comprises:
loading gradually increasing driving voltages to regions, corresponding to the sub-display regions, of the backlight module in the direction from the binding region to the display region;
wherein driving voltages loaded to regions, corresponding to a same sub-display region, of the backlight module are same.

9. A display panel, comprising:
a base substrate, comprising:
a display region; and
a non-display region surrounding the display region;
wherein the non-display region comprises a binding region on one side of the display region; and

a plurality of sub-pixels, in the display region;
wherein areas of pixel aperture regions of the plurality of sub-pixels tend to increase in a direction from the binding region to the display region;
the display region is divided into a plurality of sub-display regions in the direction from the binding region to the display region;
areas of pixel aperture regions of sub-pixels in a same sub-display region gradually increase in the direction from the binding region to the display region; and
areas of pixel aperture regions of sub-pixels in different sub-display regions gradually increase in the direction from the binding region to the display region.

10. The display panel according to claim 9 , wherein a region occupied by each of the plurality sub-pixels comprises:
the pixel aperture region; and
a light-shielding region surrounding the pixel aperture region;
wherein areas of the regions occupied by the respective sub-pixels are same;
a color filter is disposed in the pixel aperture region;
a light-shielding part is disposed in the light-shielding region; and
in the direction from the binding region to the display region, widths of the light-shielding parts of the plurality of sub-pixels tend to decrease.

11. The display panel according to claim 10 , wherein the display region comprises data lines and gate lines disposed crosswise; and
the binding region is disposed on one side of an extending direction of the data lines, and in the direction from the binding region to the display region, widths of portions, for shielding the gate lines, in the light-shielding parts in the extending direction of the data lines tend to decrease.

12. The display panel according to claim 10 , wherein the display region comprises data lines and gate lines disposed crosswise; and
the binding region is disposed on one side of an extending direction of the gate lines, and in the direction from the binding region to the display region, widths of portions, for shielding the data lines, in the light-shielding parts in the extending direction of the gate lines tend to decrease.

13. The display panel according to claim 10 , wherein in a direction perpendicular to the direction from the binding region to the display region, widths of the light-shielding parts of the sub-pixels are same.

14. A display device, comprising:
a backlight module; and
the display panel according to claim 9 ;
wherein the display panel is on a light-emitting side of the backlight module.

15. A debugging method of the display device according to claim 14 , comprising:
inputting a pure color picture to the display panel; and
loading driving voltages tending to increase to regions, corresponding to the sub-pixels in the display region, of the backlight module in the direction from the binding region to the display region, such that a brightness difference between the sub-pixels is less than a preset threshold.

Assignees

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

Inventors

• Li Shou
• Li Xingliang
• Zhou Liugang
• Zhang Jian
• Bu Zhanchang
• Zhang Hui
• Yue Hongli

Classifications

• G02F1/133388

  with constructional differences between the display region and the peripheral region · CPC title

• G02F2201/40

  Arrangements for improving the aperture ratio · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/133514

  Colour filters · CPC title