DISPLAY SUBSTRATE, MANUFACTURING METHOD THEREFOR, AND DISPLAY APPARATUS

WIPO Patent Application WO/2023/230793

A1

Provided in the present disclosure is a display substrate. The display substrate comprises a substrate, a light-emitting device layer and a light extraction layer. The substrate comprises a first sub-pixel area, a second sub-pixel area and a third sub-pixel area which display different colors. The light-emitting device layer comprises a first light-emitting device, a second light-emitting device and a third light-emitting device which emit light of different colors, the first light-emitting device being located in the first sub-pixel area, the second light-emitting device being located in the second sub-pixel area, and the third light-emitting device being located in the third sub-pixel area. The light extraction layer is located on the side of the light-emitting device layer away from the substrate. The light extraction layer comprises a first light extraction part, a second light extraction part and a third light extraction part, the first light extraction part being located in the first sub-pixel area, the second light extraction part being located in the second sub-pixel area, and the third light extraction part being located in the third sub-pixel area, wherein at least two of the first light extraction part, the second light extraction part, and the third light extraction part have different sizes in a direction perpendicular to the substrate.

QU CAIYU (CN)
HAO YANJUN (CN)

PCT/CN2022/096077

December 07, 2023

May 30, 2022

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BOE TECHNOLOGY GROUP CO LTD (CN)

H01L27/32; H01L51/52

CN106981502A	2017-07-25
CN112838177A	2021-05-25
CN110265463A	2019-09-20
CN105609534A	2016-05-25
US20170117333A1	2017-04-27

BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)

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