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Patent Searching and Data


Title:
PIXEL CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY APPARATUS AND DRIVING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/196015
Kind Code:
A1
Abstract:
Provided in the embodiments of the present disclosure is a pixel circuit, comprising: a plurality of pixel units arranged in a matrix, each pixel unit comprising a light-emitting element and a pixel driving circuit used to drive the light-emitting element to emit light, and the pixel driving circuit and the light-emitting element being electrically connected to a first node; a first compensation sub-circuit, which is electrically connected to each pixel driving circuit in the plurality of pixel units, the first compensation sub-circuit being configured to provide initialization signals to the pixel driving circuits, obtain, by means of the pixel driving circuits, the voltages of the first nodes when the light-emitting elements emit light, and generate compensation data signals on the basis of the voltages of the first nodes; and a second compensation sub-circuit, which is electrically connected to each pixel driving circuit in the plurality of pixel units and is configured to maintain the voltages of the first nodes within a set operating voltage range of the light-emitting elements. The pixel driving circuits are further configured to initialize the first nodes on the basis of the initialization signals and use the compensation data signals to drive the light-emitting elements to emit light.

Inventors:
YU ZIYANG (CN)
WANG ZHU (CN)
HU SHENG (CN)
LIU TIANLIANG (CN)
LIU GUO (CN)
Application Number:
PCT/CN2020/082569
Publication Date:
October 07, 2021
Filing Date:
March 31, 2020
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
CHENGDU BOE OPTOELECT TECH CO (CN)
International Classes:
G09G3/3233
Foreign References:
CN111179855A2020-05-19
CN106205486A2016-12-07
CN109523950A2019-03-26
CN109817159A2019-05-28
CN109545146A2019-03-29
CN110827757A2020-02-21
CN109559686A2019-04-02
US20120139961A12012-06-07
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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