US 12,412,533 B2
Display panel and display device
Mingyue Li, Hubei (CN); Chao Tian, Hubei (CN); Yanqing Guan, Hubei (CN); Fei Ai, Hubei (CN); and Guanghui Liu, Hubei (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Hubei (CN)
Appl. No. 18/248,578
Filed by WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Hubei (CN)
PCT Filed Mar. 29, 2023, PCT No. PCT/CN2023/084781
§ 371(c)(1), (2) Date Apr. 11, 2023,
PCT Pub. No. WO2024/159608, PCT Pub. Date Aug. 8, 2024.
Claims priority of application No. 202310099796.X (CN), filed on Jan. 31, 2023.
Prior Publication US 2025/0087162 A1, Mar. 13, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/3266 (2016.01); G09G 3/32 (2016.01)
CPC G09G 3/3266 (2013.01) [G09G 3/32 (2013.01); G09G 2300/0465 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A display panel, comprising a display area comprising at least one display subarea, and further comprising:
N scan lines, wherein at least a part of each of the N scan lines is disposed in the display subarea, the N scan lines extend along a first direction and are arranged side by side along a second direction, the first direction intersects the second direction, and the N is an integer greater than or equal to 1; and
J sets of forward and reverse scan pull-down circuits disposed corresponding to the display subarea, wherein each set of the forward and reverse scan pull-down circuits comprises N forward and reverse scan pull-down modules, at least a part of each of the forward and reverse scan pull-down module is disposed in the display subarea, and the J is an integer greater than or equal to 1;
wherein in each set of the forward and reverse scan pull-down circuits, output terminals of the N forward and reverse scan pull-down modules are electrically connected to the N scan lines in a one-to-one correspondence;
wherein each set of the forward and reverse scan pull-down circuits comprises K rows of forward and reverse scan pull-down modules, each row of the forward and reverse scan pull-down modules comprises N/K forward and reverse scan pull-down modules arranged along the second direction, and the K is greater than or equal to 1 and less than or equal to N; and
wherein each of the forward and reverse scan pull-down modules comprises:
a forward scan control unit;
a reverse scan control unit; and
a pull-down unit, wherein a control terminal of the pull-down unit is connected to an output terminal of the forward scan control unit and an output terminal of the reverse scan control unit, and an output terminal of the pull-down unit is connected to one of the scan lines
wherein the display panel further comprises:
J groups of signal lines disposed corresponding to the display subarea, wherein each group of signal lines is disposed corresponding to one set of forward and reverse scan pull-down circuits, each group of signal lines comprises K groups of common signal lines, and the N/K forward and reverse scan pull-down modules of each row of forward and reverse scan pull-down modules are connected to one group of common signal lines;
wherein each group of common signal lines comprises a forward scan control signal line, a reverse scan control signal line and a low level signal line arranged adjacent to each other, and the forward scan control signal line, the reverse scan control signal line and the low level signal line extend along the second direction and are arranged along the first direction;
wherein second input terminals of the forward scan control units of the N/K forward and reverse scan pull-down modules of each row of the forward and reverse scan pull-down modules are connected to a same forward scan control signal line;
wherein second input terminals of the reverse scan control units of the N/K forward and reverse scan pull-down modules of each row of the forward and reverse scan pull-down modules are connected to a same reverse scan control signal line; and
wherein input terminals of the pull-down units of the N/K forward and reverse scan pull-down modules of each row of the forward and reverse scan pull-down modules are connected to a same low level signal line.