Display Substrate and Display Apparatus

Patent metadata

Field	Value
Publication number	US-2025234725-A1
Application number	US-202318701945-A
Country	US
Kind code	A1
Filing date	Mar 28, 2023
Priority date	Mar 28, 2023
Publication date	Jul 17, 2025
Grant date	—

Abstract

Disclosed are a display Substrate and a display apparatus. The display substrate includes a display region (AA) and a bezel region (BB) located around the display region (AA), wherein the display region (AA) includes at least one corner region, the bezel region (BB) includes at least one corner region, the at least one corner region of the display region (AA) corresponds to the at least one corner region of the bezel region (BB); a power supply auxiliary line (L 11 ) located in at least one corner region of the bezel region (BB) and arranged to be electrically connected with a first power supply line (VSS); a plurality of power supply connection lines (L 12 ), at least a portion of the power supply connection lines (L 12 ) are arranged to be electrically connected with the power supply auxiliary line (L 11 ).

First claim

1 . A display substrate, comprising:
a display region and a bezel region located around the display region, wherein the display region comprises at least one corner region, the bezel region comprises at least one corner region, and the at least one corner region of the display region corresponds to the at least one corner region of the bezel region; a power supply auxiliary line, located in at least one corner region of the bezel region and arranged to be electrically connected with a first power supply line; and a plurality of power supply connection lines, wherein at least a portion of the power supply connection lines of the plurality of power supply connection lines is arranged to be electrically connected with the power supply auxiliary line, and extends from the corner region of the bezel region where the power supply auxiliary line is located to a corresponding corner region of the display region.

2 . The display substrate according to claim 1 , wherein the plurality of power supply connection lines comprises a plurality of first power supply connection lines and a plurality of second power supply connection lines, an extension direction of the plurality of first power supply connection lines is intersected with an extension direction of the plurality of second power supply connection lines, and at least a portion of the first power supply connection lines of the plurality of first power supply connection lines is electrically connected with at least a portion of the second power supply connection lines of the plurality of second power supply connection lines.

3 . The display substrate according to claim 2 , wherein: the at least a portion of the first power supply connection lines is located in at least one corner region of the bezel region and extends along a first direction;
the at least a portion of the second power supply connection lines extends along a second direction and extends from at least one corner region of the bezel region where the power supply auxiliary line is located to at least one corresponding corner region of the display region; and the power supply auxiliary line is respectively electrically connected with the at least a portion of the first power supply connection lines and the at least a portion of the second power supply connection lines, and the power supply auxiliary line, at least a portion of the first power supply line and at least a portion of a second power supply line form a mesh structure in at least one corner region of the bezel region where the power supply auxiliary line is located.

4 . The display substrate according to claim 1 , wherein a width of the power supply auxiliary line gradually decreases from an end connected to the first power supply line to an end away from the first power supply line.

5 . The display substrate according to claim 4 , wherein: in a direction perpendicular to a plane where the display substrate is located, the display substrate comprises a base substrate and a first conductive layer, a second conductive layer, a first source-drain metal layer and a second source-drain metal layer stacked on the base substrate sequentially; the power supply auxiliary line, the first power supply line, the plurality of first power supply connection lines and the plurality of second power supply connection lines are located in the second source-drain metal layer, and the first power supply line is located at a side of the power supply auxiliary line away from the display region.

6 . The display substrate according to claim 5 , further comprising a plurality of signal connection lines located in the bezel region, a plurality of signal lines located in the display region and a bonding region located at a side of the display region, wherein:
one end of at least a portion of the signal connection lines is arranged to be electrically connected with the plurality of signal lines respectively, and the other end of the at least a portion of the signal connection lines is arranged to be connected with the bonding region; the at least a portion of the signal connection lines is located in at least one corner region of the bezel region and is arranged in the first conductive layer and the second conductive layer; and orthographic projections of the at least a portion of the signal connection lines on the base substrate are at least partially overlapped with an orthographic projection of the power supply auxiliary line on the base substrate.

7 . The display substrate according to claim 6 , wherein orthographic projections of the signal connection lines located in the bezel region on the base substrate are within a range of the orthographic projection of the power supply auxiliary line on the base substrate.

8 . The display substrate according to claim 5 , further comprising at least one initial signal supply line located in the second source-drain metal layer, wherein
the at least one initial signal supply line is located in the bezel region, and in a corner region of the bezel region where the power supply auxiliary line is located, the at least one initial signal supply line is located at a side of the power supply auxiliary line away from the display region.

9 . The display substrate according to claim 8 , further comprising a plurality of gate driving circuits, wherein the plurality of gate driving circuits and the at least one initial signal supply line are located in different film layers;
at least a portion of the gate driving circuits is located in at least one corner region of the bezel region and between the power supply auxiliary line and the first power supply line; and the at least one initial signal supply line is located between the plurality of gate driving circuits and the power supply auxiliary line in the corner region of the bezel region where the power supply auxiliary line is located, or an orthographic projection of the at least one initial signal supply line on the base substrate is at least partially overlapped with orthographic projections of the plurality of gate driving circuits on the base substrate.

10 . The display substrate according to claim 2 , wherein the power supply auxiliary line is electrically connected to the at least a portion of the first power supply connection lines;
the at least a portion of the first power supply connection lines extends along a first direction and extends from at least one corner region of the bezel region where the power supply auxiliary line is located to at least one corresponding corner region of the display region; the at least a portion of the second power supply connection lines is located in the display region and extends in a second direction, and the at least a portion of the first power supply connection lines and the at least a portion of the second power supply connection lines form a mesh structure in at least one corner region of the display region.

11 . The display substrate according to claim 10 , wherein: in a direction perpendicular to a plane where the display substrate is located, the display substrate comprises a base substrate and a first conductive layer, a second conductive layer, a first source-drain metal layer, and a second source-drain metal layer stacked on the base substrate sequentially; the plurality of first power supply connection lines are located in the first source-drain metal layer, the plurality of second power supply connection lines are located in the second source-drain metal layer, and the first power supply line is located at a side of the power supply auxiliary line away from the display region; and the first power supply line is of a single-layer structure located in the first source-drain metal layer or the second source-drain metal la

Assignees

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

Inventors

• Cai Wenzhe
• Fan Cong
• Liu Tingliang
• Tong Kemeng
• He Fan
• Guan Hui
• Li Hanchao

Classifications

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title