US 12,307,987 B2
Display device and driving method thereof
Yue Xi, Guangdong (CN)
Assigned to Huizhou China Star Optoelectronics Display Co., Ltd., Huizhou (CN); and Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen (CN)
Appl. No. 17/607,536
Filed by Huizhou China Star Optoelectronics Display Co., Ltd., Guangdong (CN); and Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
PCT Filed Sep. 28, 2021, PCT No. PCT/CN2021/121133
§ 371(c)(1), (2) Date Oct. 29, 2021,
PCT Pub. No. WO2023/039944, PCT Pub. Date Mar. 23, 2023.
Claims priority of application No. 202111088131.6 (CN), filed on Sep. 16, 2021.
Prior Publication US 2024/0029673 A1, Jan. 25, 2024
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3426 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0276 (2013.01); G09G 2330/021 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A driving method of a display device, comprising:
obtaining an image to be displayed;
determining whether the image to be displayed is a heavy load image;
adjusting a first white balance data table corresponding to the image to be displayed into a second white balance data table if the image to be displayed is the heavy load image, wherein the first white balance data table is a linear data table, and a white balance parameter corresponding to at least one gray level in the first white balance data table is greater than a white balance parameter corresponding to the at least one gray level in the second white balance data table;
performing a white balance correction on the second white balance data table according to target color points; and
driving the display device to display the image to be displayed according to the second white balance data table;
wherein the step of determining whether the image to be displayed is a heavy load image comprises:
obtaining brightness distribution characteristics of a heavy load image;
obtaining brightness distribution characteristics of the image to be displayed; and
comparing the brightness distribution characteristics of the heavy load image with the brightness distribution characteristics of the image to be displayed, and determining that the image to be displayed is a heavy load image if the brightness distribution characteristics of the heavy load image is the same as the brightness distribution characteristics of the image to be displayed;
wherein the step of obtaining the brightness distribution characteristics of the heavy load image comprises:
obtaining a pixel driving architecture type of the display device; and
determining the brightness distribution characteristics of the heavy load image according to the pixel driving architecture type,
wherein the display device comprises a plurality of sub-pixels arranged in an array, every three ones of the sub-pixels constituting a pixel unit,
wherein the pixel driving architecture type comprises a first driving architecture having no polarity inversion characteristics and a second driving architecture having polarity inversion characteristics, and
wherein the brightness distribution characteristics of the heavy load image is at least one of: under the first driving architecture, in two adjacent rows of sub-pixels of the display device, one row of sub-pixels are bright, and another row of sub-pixels are dark; under the first driving architecture, in two adjacent sub-pixels of the display device, one sub-pixel is bright, and another sub-pixel is dark; under the first driving architecture, in two adjacent pixel units of the display device, three sub-pixels in one pixel unit are all bright, and three sub-pixels in another pixel unit are all dark; under the second driving architecture, in two adjacent rows of sub-pixels of the display device, one row of sub-pixels have positive polarity voltages, and another row of sub-pixels have negative polarity voltages; and under the second driving architecture, in two adjacent columns of sub-pixels of the display device, one column of sub-pixels have positive polarity voltages, and another column of sub-pixels have negative polarity voltages.