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Title:
PIXEL DRIVE CIRCUIT AND DRIVE METHOD THEREFOR, AND DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2022/110179
Kind Code:
A1
Abstract:
A pixel drive circuit and a drive method therefor, and a display panel. The pixel drive circuit comprises a drive transistor (DT), a data writing circuit (1), a compensation circuit (2), a light emission control circuit (3), a storage circuit (4), a first transistor (T1) and a second transistor (T2). A first electrode of the drive transistor (DT) is connected to a first node (N1), a second electrode thereof is connected to a second node (N2), and a gate electrode thereof is connected to a third node (N3); the data writing circuit (1) is connected to the first node (N1) and a data signal end (Da); the compensation circuit (2) is connected to the second node (N2) and the third node (N3); the light emission control circuit (3) is connected to the drive transistor (DT), a first power supply end (VDD), a light-emitting unit (OLED) and an enable signal end (EM); and the storage circuit (4) is connected between the first power supply end (VDD) and the third node (N3). The first transistor (T1) and the second transistor (T2) are connected in series between the third node (N3) and an initial signal end (Vinit); and the first transistor (T1) is an N-type oxide transistor, and the drive transistor (DT) is a P-type low-temperature polycrystalline silicon transistor.

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Inventors:
WANG ZHU (CN)
Application Number:
PCT/CN2020/132866
Publication Date:
June 02, 2022
Filing Date:
November 30, 2020
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
CHENGDU BOE OPTOELECT TECH CO (CN)
International Classes:
G09G3/3233; H01L27/32
Foreign References:
CN111627387A2020-09-04
CN111445848A2020-07-24
CN111312129A2020-06-19
CN110085170A2019-08-02
CN109216414A2019-01-15
CN109817165A2019-05-28
CN110728952A2020-01-24
US9626905B22017-04-18
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF:
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