US 11,996,027 B2
Display device and method for driving display panel
Xingyao Zhou, Wuhan (CN); Yana Gao, Wuhan (CN); Kang Yang, Wuhan (CN); Wei Liu, Wuhan (CN); and Qijun Yao, Wuhan (CN)
Assigned to Wuhan Tianma Microelectronics Co., Ltd., Wuhan (CN); and Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai (CN)
Filed by WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan (CN); and Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai (CN)
Filed on Apr. 25, 2023, as Appl. No. 18/306,464.
Claims priority of application No. 202211021909.6 (CN), filed on Aug. 24, 2022.
Prior Publication US 2023/0316976 A1, Oct. 5, 2023
Int. Cl. G09G 3/3258 (2016.01); G09G 3/20 (2006.01); G09G 3/3233 (2016.01)
CPC G09G 3/20 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0202 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01); G09G 2330/021 (2013.01); G09G 2340/00 (2013.01)] 41 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel having a display area,
wherein the display panel comprises a plurality of pixel circuits arranged in the display area, wherein each of the pixel circuits of the plurality of pixel circuits comprises a driving transistor and a voltage regulating transistor, wherein the voltage regulating transistor is configured to adjust a node voltage of the driving transistor by a voltage provided by one voltage regulating signal line of a plurality of voltage regulating signal lines;
wherein the plurality of pixel circuits has data refresh frequencies, wherein the data refresh frequencies comprise a first frequency and a second frequency, wherein the first frequency is greater than the second frequency; and
wherein when one pixel circuit of the plurality of pixel circuits performs data refreshing at the first frequency, one corresponding voltage regulating signal line of the plurality of voltage regulating signal lines is configured to provide a first voltage, and, when one pixel circuit of the pixel circuits performs data refreshing at the second frequency, one corresponding voltage regulating signal line of the voltage regulating signal lines is configured to provide a second voltage, wherein the first voltage is not equal to the second voltage.