US 11,705,032 B2
Driving circuit and display panel
Haiming Cao, Hubei (CN); and Yanqing Guan, Hubei (CN)
Assigned to Wuhan China Star Optoelectronics Technology Co., Ltd., Hubei (CN)
Appl. No. 16/961,956
Filed by Wuhan China Star Optoelectronics Technology Co., Ltd., Hubei (CN)
PCT Filed Jun. 12, 2020, PCT No. PCT/CN2020/095851
§ 371(c)(1), (2) Date Jul. 14, 2020,
PCT Pub. No. WO2021/227175, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 202010400404.5 (CN), filed on May 13, 2020.
Prior Publication US 2023/0102348 A1, Mar. 30, 2023
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2300/0426 (2013.01); G09G 2310/0283 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A driving circuit, comprising a plurality of cascaded driving units, the driving unit comprising:
a forward/backward scan control module, configured to control the driving circuit to perform a forward scan according to a forward scan control signal or control the driving circuit to perform a backward scan according to a backward scan control signal;
a first control node controlling module, electrically connected to the forward/backward scan control module, wherein an output end of the first control node controlling module is electrically connected to a first control node to control a voltage level of the first control node;
a second control node controlling module, electrically connected to the forward/backward scan control module and the first control node controlling module, wherein an output end of the second control node controlling module is electrically connected to a second control node to control a voltage level of the second control node;
a global control module, configured to control the driving unit to output a global control signal;
a regulating module, configured to maintain the voltage level of the second control node;
a first output module, electrically connected to the first control node and the second control node, configured to output a stage signal; and
a second output module, electrically connected to the first control node and the second control node, configured to output a gate driving signal;
wherein a voltage level of the gate driving signal is higher than a voltage level of the stage signal.