公开(公告)号：US20210020869A1

公开(公告)日：2021-01-21

申请号：US17040952

申请日：2020-04-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xuewu XIE ,  Bowen LIU ,  Chienyu CHEN ,  Yu AI ,  Hao LIU ,  Yubao KONG ,  Shi SUN ,  Ameng ZHANG

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56 ,  G09G3/3225 ,  G09G3/20

Abstract: The present disclosure relates to an OLED display substrate including a base substrate, a thin film transistor array layer and a planarization layer on the base substrate, and an anode, a pixel definition layer, a cathode, and a light emitting layer on a side of the planarization layer away from the base substrate, the pixel definition layer defining pixel regions, the light emitting layer being located on a side of the pixel definition layer away from the base substrate. The display substrate further includes a light guide that is in contact with the light emitting layer and is used to lead out light from the light emitting layer, so as to test the led-out light and adjust light emission.

公开(公告)号：US20240221666A1

公开(公告)日：2024-07-04

申请号：US18570649

申请日：2022-03-07

Applicant: Mianyang BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Chienyu CHEN ,  Tsanghong WANG ,  Xu GONG ,  Erlong SONG ,  Chunyang LI

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2014 ,  G09G2310/061 ,  G09G2320/064

Abstract: A display panel, a method for driving the display panel and a display apparatus are provided. The display panel includes a light-emitting element and a pixel circuit, the pixel circuit includes: an enable signal terminal being a pulse width modulation signal, including a plurality of first active levels spaced in one frame light-emitting duration, a first inactive level being between two adjacent first active levels, where the enable signal is capable of driving the light-emitting element to emit light during a first active level period; a reset signal terminal including at least one second active level and one second inactive level in one frame light-emitting duration, the second active level being in a first inactive level period, and the first active level being in a second inactive level period, where the reset signal is capable of resetting the light-emitting device during a second active level period.

公开(公告)号：US20240365594A1

公开(公告)日：2024-10-31

申请号：US18029852

申请日：2022-04-01

Applicant: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Bo SHI ,  Ming HU ,  Weiyun HUANG ,  Taofeng XIE ,  Quan SHI ,  Chienyu CHEN

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/879

Abstract: A display substrate includes a pixel defining layer, a plurality of light emitting devices, a first isolation portion, and a light adjustment layer. The pixel defining layer has a plurality of openings. A portion of a light emitting device is located in an opening. The light emitting device includes a first light-emitting layer and a cathode that are disposed sequentially. The first isolation portion is disposed on the pixel defining layer and located between two adjacent openings, and the first isolation portion separates first light-emitting layers and cathodes of light emitting devices located in the two adjacent openings. The light adjusting layer covers the pixel defining layer, the plurality of light emitting devices, and the first isolation portion. A refractive index of the light adjustment layer is different from that of the first isolation portion.