US 12,136,371 B2
Control circuit of display panel and display device
Tingting Shen, Shenzhen (CN); and Baohong Kang, Shenzhen (CN)
Assigned to HKC CORPORATION LIMITED, Shenzhen (CN)
Appl. No. 18/012,018
Filed by HKC CORPORATION LIMITED, Shenzhen (CN)
PCT Filed Jun. 9, 2022, PCT No. PCT/CN2022/097860
§ 371(c)(1), (2) Date Dec. 21, 2022,
PCT Pub. No. WO2023/005443, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. 202110876023.9 (CN), filed on Jul. 30, 2021.
Prior Publication US 2024/0242650 A1, Jul. 18, 2024
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2310/0267 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A control circuit of a display panel, wherein the control circuit is configured to receive a first clock signal, a first level signal and a second level signal, phase-shift the first clock signal to obtain a second clock signal according to the first level signal and the second level signal, and output the second clock signal to a gate drive circuit; wherein the second clock signal comprises a third level signal and a fourth level signal, the third level signal and the fourth level signal are at different levels;
the control circuit comprises: a first switch unit and a second switch unit connected to the first switch unit;
the first switch unit is configured to receive the first clock signal, the first level signal and the second level signal, and output the third level signal to the gate drive circuit based on the first clock signal, the first level signal and the second level signal; and
the second switch unit is configured to receive the first clock signal, the first level signal and the second level signal, and output the fourth level signal to the gate drive circuit according to the first clock signal, the first level signal and the second level signal.