US 12,067,924 B2
Display panel and controlling method thereof
Zhisheng Li, Guangdong (CN); Dan Cao, Guangdong (CN); and Wenfang Li, Guangdong (CN)
Assigned to TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 17/609,278
Filed by TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Sep. 7, 2021, PCT No. PCT/CN2021/116945
§ 371(c)(1), (2) Date Mar. 2, 2023,
PCT Pub. No. WO2023/024160, PCT Pub. Date Mar. 2, 2023.
Claims priority of application No. 202110987833.1 (CN), filed on Aug. 26, 2021.
Prior Publication US 2024/0029618 A1, Jan. 25, 2024
Int. Cl. G09G 3/20 (2006.01); G09G 3/36 (2006.01)
CPC G09G 3/2074 (2013.01) [G09G 3/2096 (2013.01); G09G 3/3607 (2013.01); G09G 3/3648 (2013.01); G09G 2320/0209 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display panel controlling method, comprising:
obtaining a first grayscale value of a first location and a second grayscale value of a second location of a display panel in a same frame, wherein a first data voltage of the first location and a second data voltage of the second location is transmitted by a same data line;
obtaining a grayscale threshold value, and determining a grayscale difference value according to the first grayscale value and the second grayscale value;
when an absolute value of the grayscale difference value is greater than the grayscale threshold value, obtaining a first voltage range and determining a first voltage value corresponding to the first data voltage and a second voltage value corresponding to the second data voltage according to the first voltage range, the first grayscale value, and the second grayscale value; and
when the absolute value of the grayscale difference value is not greater than the grayscale threshold value, obtaining a second voltage range and determining a third voltage value corresponding to the first data voltage and a fourth voltage value corresponding to the second data voltage according to the second voltage range, the first grayscale value, and the second grayscale value, wherein a length of an interval of the first voltage range is less than a length of an interval of the second voltage range; and
wherein before the step of obtaining the first voltage range, the method comprises:
obtaining a sign voltage value; and
determining whether to obtain the first voltage range according to the sign voltage value.