US 11,985,877 B2
Display substrate and method of manufacturing the same, display panel, and display device
Wenjun Hou, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/419,108
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Sep. 23, 2020, PCT No. PCT/CN2020/117030
§ 371(c)(1), (2) Date Jun. 28, 2021,
PCT Pub. No. WO2021/057766, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 201910907490.6 (CN), filed on Sep. 24, 2019.
Prior Publication US 2022/0069026 A1, Mar. 3, 2022
Int. Cl. H10K 59/35 (2023.01); H10K 59/122 (2023.01); H10K 59/173 (2023.01); H10K 71/00 (2023.01); H10K 71/13 (2023.01)
CPC H10K 59/35 (2023.02) [H10K 59/122 (2023.02); H10K 59/173 (2023.02); H10K 59/352 (2023.02); H10K 71/00 (2023.02); H10K 71/135 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display substrate having a display area, the display substrate comprising:
a base; and
a plurality of light-emitting devices disposed on the base and located in the display area, each light-emitting device including a light-emitting portion; wherein
the light-emitting portion in at least one light-emitting device is a light-emitting portion that is manufactured using an ink-jet printing process, and distances from a plurality of selected points on an edge of an orthographic projection of the light-emitting portion manufactured using the ink-jet printing process on the base to a center of the orthographic projection are equal; and
the plurality of selected points are distributed on a circle at equal intervals when using the center of the orthographic projection as a center of the circle and a distance from one of the plurality of selected points to the center of the orthographic projection as a radius;
wherein the plurality of light-emitting devices include a first light-emitting device capable of emitting light of a first color, a second light-emitting device capable of emitting light of a second color, and a third light-emitting device capable of emitting light of a third color; wherein the first, second and third colors are three primary colors;
an area of a light exit surface of the first light-emitting device or the second light-emitting device is less than or equal to an area of a light exit surface of the third light-emitting device;
the first light-emitting device and the second light-emitting device are located within a range defined by an outer contour of the third light-emitting device; and orthographic projections of the first light-emitting device, the second light-emitting device and the third light-emitting device on the base do not overlap; and
an orthographic projection of a light-emitting portion on the base of at least one of the first light-emitting device and the second light-emitting device is in a shape of a circle.