US 12,424,136 B2
Driving method for display panel and display device
Yi Cheng, Chongqing (CN); and Haijiang Yuan, Chongqing (CN)
Assigned to CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing (CN); and HKC CORPORATION LIMITED, Shenzhen (CN)
Filed by CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing (CN); and HKC CORPORATION LIMITED, Shenzhen (CN)
Filed on Nov. 21, 2023, as Appl. No. 18/515,630.
Claims priority of application No. 202310605034.2 (CN), filed on May 25, 2023.
Prior Publication US 2024/0395186 A1, Nov. 28, 2024
Int. Cl. G09G 3/32 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/2007 (2013.01) [G09G 3/32 (2013.01); G09G 2320/0666 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A driving method for a display panel, wherein the display panel comprises a plurality of types of Light-Emitting Diodes (LEDs), different types of LEDs have different light-emitting colors, and the driving method for the display panel comprises:
obtaining a target grayscale value of the display panel;
determining, according to a preset correspondence corresponding to each type of LED between grayscale values and driving-current values, a driving-current value corresponding to each type of LED at the target grayscale value as a target driving-current value, to obtain target driving-current values corresponding to all LEDs at the target grayscale value, wherein the target driving-current values corresponding to the plurality of types of LEDs are different, and the preset correspondence between the grayscale values and the driving-current values defines that the grayscale values are positively correlated with the driving-current values;
providing currents having corresponding adjusted driving-current values for the plurality of types of LEDs respectively, wherein said each type of LED corresponds to an adjusted driving-current value, and for said each type of LED, the adjusted driving-current value corresponding to the type of LED is different from the target driving-current value corresponding to the type of LED; and
providing currents having corresponding target driving-current values for the plurality of types of LEDs respectively.