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Display panel and display device

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Source: EPO OPS

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91322786Family
§ Ⅰ

Dossier Overview

Applicant

BOE TECHNOLOGY GROUP CO LTD

Application number

CN20228004742

Inventor

WANG LINLIN; ZHOU DANDAN; XU CHENG

Filing Date

Nov 29, 2022

Publication Date

Jul 30, 2024

Patent Family ID

91322786

IPC Classification

H05B45/60

CPC Classification

H05B45/60H10K50/13H10K50/852H10K59/35H10K59/38H10K59/876H10K2102/331H10K2102/351

A display panel, the display panel comprising a plurality of light emitting devices arranged in an array, each light emitting device (10) of the plurality of light emitting devices comprising: a first electrode (111); a first light emitting layer (121) on the first electrode (111); the second light-emitting layer (122) is located on the side, away from the first electrode (111), of the first light-emitting layer (121); the third light-emitting layer (123) is located on the side, away from the first electrode (111), of the second light-emitting layer (122); the fourth light-emitting layer (124) is located on the side, away from the first electrode (111), of the third light-emitting layer (123); the fifth light-emitting layer (125) is located on the side, away from the first electrode (111), of the fourth light-emitting layer (124); the second electrode (112) is located on the side, away from the first electrode (111), of the fifth light-emitting layer (125), a microcavity is formed between the first electrode (111) and the second electrode (112), four of the first light-emitting layer (121), the second light-emitting layer (122), the third light-emitting layer (123), the fourth light-emitting layer (124) and the fifth light-emitting layer (125) emit light of a first wavelength, and the fourth light-emitting layer (124) emits light of a second wavelength. The remaining light-emitting layers other than the four light-emitting layers emitting light of the first wavelength emit light of the second wavelength, and the first wavelength is smaller than the second wavelength. The invention further provides a display device comprising the display panel.

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