US 12,289,923 B2
Display panels and electronic devices
Yue Long, Beijing (CN); Yongkang Zhang, Beijing (CN); Zhenli Zhou, Beijing (CN); and Weiyun Huang, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/771,728
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Mar. 19, 2021, PCT No. PCT/CN2021/081874
§ 371(c)(1), (2) Date Apr. 25, 2022,
PCT Pub. No. WO2021/218483, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 202010344334.6 (CN), filed on Apr. 27, 2020.
Prior Publication US 2023/0046172 A1, Feb. 16, 2023
Int. Cl. H10K 59/121 (2023.01); H10F 39/00 (2025.01); H10K 50/822 (2023.01)
CPC H10F 39/802 (2025.01) [H10K 50/822 (2023.02); H10K 59/121 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a base substrate;
a low-display-density region, located on the base substrate;
a high-display-density region, located on the base substrate; and
a transition region, located on the base substrate and between the low-display-density region and the high-display-density region,
wherein the low-display-density region, the transition region, and the high-display-density region are provided with a plurality of pixel units for display, respectively; and
a display density of the low-display-density region is less than a display density of the transition region, and the display density of the transition region is less than a display density of the high-display-density region; and
wherein a maximum border of the low-display-density region has a first dimension, and a maximum border of the transition region has a second dimension, wherein the first dimension is the greater of the length or breadth values of the low-display-density region, and the second dimension is the greater of the length or breadth values of the transition region, a ratio of the second dimension to the first dimension is equal to or greater than 1.04, and display densities of the transition region at various positions tend to increase along a direction from the low-display-density region towards the high-display-density region, with a rate of increase of the display densities being less than 0.4, wherein the rate of increase is defined as increase of the display density (y-axis) versus the distance from the low towards the high display densities (x-axis) so as to avoid clear borders between the transition region and the low-display-density region and between the transition region and the high-display-density region, and wherein the display density is a ratio of an area occupied by the pixel units per unit area to the unit area.