US 12,033,592 B2
Method and apparatus for displaying image and screen driving board
Shuo Zhang, Beijing (CN); Tiankuo Shi, Beijing (CN); Xiaomang Zhang, Beijing (CN); Yanhui Xi, Beijing (CN); Zhihua Ji, Beijing (CN); Yan Sun, Beijing (CN); Chenxi Zhao, Beijing (CN); Xiangjun Peng, Beijing (CN); Yifan Hou, Beijing (CN); and Minglei Chu, Beijing (CN)
Assigned to BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO. , LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO. , LTD., Beijing (CN)
Appl. No. 17/630,721
Filed by Beijing BOE Optoelectronics Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Dec. 24, 2020, PCT No. PCT/CN2020/139075
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2022/133920, PCT Pub. Date Jun. 30, 2022.
Prior Publication US 2023/0377526 A1, Nov. 23, 2023
Int. Cl. G09G 3/34 (2006.01); G09G 3/36 (2006.01); G09G 5/391 (2006.01)
CPC G09G 3/3426 (2013.01) [G09G 3/3406 (2013.01); G09G 3/342 (2013.01); G09G 3/3607 (2013.01); G09G 5/391 (2013.01); G09G 2300/023 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/0686 (2013.01); G09G 2340/0407 (2013.01); G09G 2340/0428 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for displaying an image, applicable to an apparatus for displaying an image of a display device, wherein the display device comprises a backlight module, a first display panel, and a second display panel that are laminated sequentially, wherein the backlight module comprises a plurality of backlight sections arranged in an array and a plurality of backlight sources, each of the backlight sections being provided with at least one of the backlight sources, and wherein the first display panel comprises a black-and-white display panel of a first resolution and includes a plurality of first display panel regions which are in one-to-one correspondence with the plurality backlight sections, and the second display panel comprises a color display panel of a second resolution and includes a plurality of second display panel regions which are in one-to-one correspondence with the plurality backlight sections, wherein the first resolution being less than the second resolution; and the method comprises:
acquiring a first target image with a third resolution and a second target image with a fourth resolution based on a source image and acquiring grayscale values of respective pixels in the first target image and grayscale values of respective pixels in the second target image, wherein both the third resolution and the fourth resolution are less than the second resolution, and the first target image comprises a plurality of first image regions in one-to-one correspondence with the plurality of backlight sections;
determining a reference grayscale value of each of the backlight sections based on the grayscale values of respective pixels in the first image region corresponding to the backlight section;
determining grayscale values of respective pixels in a first display image based on the grayscale values of respective pixels in the first target image, wherein a resolution of the first display image is the first resolution;
determining grayscale values of respective pixels in a second display image based on the grayscale values of the respective pixels in the first target image, the grayscale values of respective pixels in the second target image, the reference grayscale values of the plurality of backlight sections, and the grayscale values of the respective pixels in the first display image; driving each of the backlight sources to emit light based on the reference grayscale value of the backlight section where the backlight source is disposed;
driving the first display panel to perform display based on the grayscale values of respective pixels in the first display image; and
driving the second display panel to perform display based on the grayscale values of respective pixels in the second display image.