Display substrate, display panel and display device

Patent metadata

Field	Value
Publication number	US-12431065-B2
Application number	US-202117769935-A
Country	US
Kind code	B2
Filing date	Apr 23, 2021
Priority date	Apr 23, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

The embodiment of the present disclosure discloses a display substrate, a display panel and a display device. The display substrate includes a plurality of first pixel circuits located in a frame region, the frame region includes a first sub-region and a second sub-region, the plurality of first pixel circuits include first sub-pixel circuits and second sub-pixel circuits, the first sub-pixel circuits are located in the first sub-region, and the second sub-pixel circuits are located in the second sub-region; and the display substrate further includes a plurality of first light-emitting devices located in a first display region.

First claim

What is claimed is:

1. A display substrate, comprising a display region and a frame region,
wherein the display region comprises: a first display region and a second display region arranged on at least one side of the first display region;
the display substrate comprises a plurality of first pixel circuits arranged in the frame region, the frame region comprises first sub-regions and second sub-regions, and the plurality of first pixel circuits comprise first sub-pixel circuits and second sub-pixel circuits, the first sub-pixel circuits are arranged in the first sub-regions, and the second sub-pixel circuits are arranged in the second sub-regions;
the display substrate further comprises a plurality of first light emitting devices arranged in the first display region, the plurality of first light emitting devices comprise first sub-light emitting devices and second sub-light emitting devices, the first sub-light emitting devices and the first sub-pixel circuits are electrically connected, and the second sub-light emitting devices and the second sub-pixel circuits are electrically connected; and
the display substrate comprises a plurality of first control lines, the plurality of first control lines are configured to provide control signals for the plurality of first pixel circuits, and the first sub-pixel circuits and the plurality of first control lines are coupled through first connecting lines, and the second sub-pixel circuits and the plurality of first control lines are coupled through second connecting lines;
wherein the frame region comprises at least one group of the first sub-regions and the second sub-regions, a first sub-region and a second sub-region of a same group are arranged in a row direction, and the first sub-regions and the second sub-regions of different groups are arranged in sequence in a column direction; and the first sub-pixel circuits of the first sub-region and the second sub-pixel circuits of the second sub-region of the same group are arranged in the same row; and
the first sub-region and the second sub-region of the same group are coupled with a same first control line, and the first sub-regions and the second sub-regions of the different groups are coupled with different first control lines.

2. The display substrate according to claim 1 , further comprising a first drive circuit arranged in the frame region,
wherein the first drive circuit comprises a plurality of first shift register units disposed in cascade, and
the plurality of first control lines and signal output ends of the first shift register units are electrically connected.

3. The display substrate according to claim 2 , wherein the second display region further comprises a plurality of second pixel circuits and a plurality of second control lines;
each row of the plurality of second pixel circuits are electrically connected with a same second control line;
different rows of the plurality of second pixel circuits are electrically connected with different second control lines; and
the plurality of second control lines and the first drive circuit are electrically connected.

4. The display substrate according to claim 3 , wherein the plurality of first pixel circuits corresponding to the frame region and the plurality of second pixel circuits corresponding to the second display region all adopt bilateral driving;
each of the plurality of first control lines is correspondingly and electrically connected with two of the plurality of first shift register units; and
each of the plurality of second control lines is correspondingly and electrically connected with two of the plurality of first shift register units.

5. The display substrate according to claim 3 , further comprising a plurality of second light emitting devices arranged in the second display region;
wherein each of the plurality of second light emitting devices is correspondingly and electrically connected with each of the plurality of second pixel circuits separately; and
a resolution ratio of the first display region and a resolution ratio of the second display region are same.

6. The display substrate according to claim 2 , wherein the second display region further comprises a plurality of second pixel circuits and a plurality of second control lines, each row of the plurality of second pixel circuits are electrically connected with a same second control line, and different rows of the plurality of second pixel circuits are electrically connected with different second control lines;
the display substrate further comprises: a second drive circuit arranged in the frame region, and the second drive circuit comprises a plurality of second shift register units disposed in cascade; and
one of the plurality of second shift register units is electrically connected with one row of the plurality of second pixel circuits through a second control line.

7. The display substrate according to claim 6 , wherein a trigger signal of a first stage of first shift register unit and a trigger signal of a first stage of second shift register unit are same.

8. The display substrate according to claim 6 , wherein the plurality of first pixel circuits corresponding to the frame region and the plurality of second pixel circuits corresponding to the second display region all adopt bilateral driving;
each of the plurality of first control lines is correspondingly and electrically connected with two of the plurality of first shift register units; and
each of the plurality of second control lines is correspondingly and electrically connected with two of the plurality of second shift register units.

9. The display substrate according to claim 2 , wherein in a row of the plurality of first pixel circuits, except for a region farthest from the first drive circuit, remaining regions are all provided with corresponding compensation capacitors; the compensation capacitors are configured to compensate for a load of the first control lines electrically connected with corresponding regions; and
from a region closest to the first drive circuit to the region farthest from the first drive circuit, a compensation capacitor corresponding to each of the regions is decreased sequentially.

10. The display substrate according to claim 9 , wherein one end of the compensation capacitor is electrically connected with one of the first control lines, and the other end of the compensation capacitor is electrically connected with a voltage stabilization power supply terminal; and
the compensation capacitors are configured to compensate for the load of the first control lines electrically connected with the corresponding regions according to a voltage stabilization signal provided by the voltage stabilization power supply terminal.

11. The display substrate according to claim 1 , wherein the display substrate further comprises a plurality of data lines configured to provide data signals for the plurality of first pixel circuits,
the display substrate further comprises a plurality of third control lines, the plurality of data lines and the plurality of third control lines are electrically connected, and different data lines are electrically connected with different third control lines; and
a first sub-pixel circuit is coupled with a corresponding third control line through a third connecting line, a second sub-pixel circuit is coupled with a corresponding third control line through a fourth connecting line, and the first sub-pixel circuit and the second sub-pixel circuit are coupled with different third control lines.

12. The display substrate according to claim 1 , wherein the frame region comprises: a target row with a largest quantity of the first pixel circui

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Qiu Yuanyou
• Wang Binyan

Classifications

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2320/0233

  Improving the luminance or brightness uniformity across the screen · CPC title

• G09G2310/0286

  Details of a shift registers arranged for use in a driving circuit · CPC title

• G09G2310/0275

  Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current · CPC title

• G09G3/3233

  with pixel circuitry controlling the current through the light-emitting element · CPC title