US 12,456,414 B2
Gate driving unit and display device including frequency division control module
Yi Liu, Wuhan (CN); and Feixiang Sun, Wuhan (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Wuhan (CN)
Appl. No. 18/278,148
Filed by WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Wuhan (CN)
PCT Filed Jul. 20, 2023, PCT No. PCT/CN2023/108494
§ 371(c)(1), (2) Date Aug. 21, 2023,
PCT Pub. No. WO2024/250393, PCT Pub. Date Dec. 12, 2024.
Claims priority of application No. 202310669220.2 (CN), filed on Jun. 6, 2023.
Prior Publication US 2025/0029542 A1, Jan. 23, 2025
Int. Cl. G09G 3/3266 (2016.01); G09G 3/32 (2016.01); G09G 3/20 (2006.01); G09G 3/3208 (2016.01); G09G 3/3233 (2016.01); G09G 3/36 (2006.01)
CPC G09G 3/32 (2013.01) [G09G 3/3266 (2013.01); G09G 3/20 (2013.01); G09G 3/2074 (2013.01); G09G 3/3208 (2013.01); G09G 3/3233 (2013.01); G09G 3/3677 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0202 (2013.01); G09G 2310/0243 (2013.01); G09G 2310/0264 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/08 (2013.01); G09G 2320/02 (2013.01); G09G 2330/021 (2013.01); G09G 2330/023 (2013.01); G09G 2340/0435 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A gate driving unit, comprising a frequency division control line and a plurality of cascaded gate driving circuits, wherein the frequency division control line transmits a frequency division control signal to the plurality of cascaded gate driving circuits, and each of the gate driving circuits comprises:
a stage transmission module receiving an upper-stage stage transmission signal and outputting a current-stage stage transmission signal to a lower-stage of gate driving circuit;
an output module electrically connected to a first node and a second node in the stage transmission module and outputting a gate control signal based on the frequency division control signal and signals from the first node and the second node; and
a frequency division control module electrically connected between the stage transmission module and the output module and controlling signal transmission between the output module and one of the first node and the second node based on the frequency division control signal and the signal from the first node or the second node;
wherein the frequency division control module comprises:
a first control transistor, wherein a control terminal of the first control transistor is electrically connected to the first node or the second node, and an input terminal of the first control transistor is electrically connected to the frequency division control line; and
a second control transistor, wherein a control terminal of the second control transistor is electrically connected to an output terminal of the first control transistor, an input terminal of the second control transistor is electrically connected to one of the first node and the second node, and an output terminal of the second control transistor is electrically connected to the output module.