Title:
PIXEL CIRCUIT, DISPLAY PANEL AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/134853
Kind Code:
A1
Abstract:
A pixel circuit, a display panel and a display device. The pixel circuit comprises: a light-emitting unit (110, 210, 310, 410, 510), the light-emitting unit (110, 210, 310, 410, 510) comprising at least one sub-pixel light-emitting unit (112, 212, 312, 412); a pixel drive unit (120, 220, 320, 420, 520), the pixel drive unit (120, 220, 320, 420, 520) comprising at least one sub-pixel drive unit (122, 222, 322, 422, 522); and a fuse unit (130, 230, 430, 530), the fuse unit (130, 230, 430, 530) being connected between the sub-pixel drive unit (122, 222, 322, 422, 522) and an anode of the sub-pixel light-emitting unit (112, 212, 312, 412), wherein when the current output by the sub-pixel drive unit (122, 222, 322, 422, 522) is greater than a fusing current threshold, the fuse unit (130, 230, 430, 530) is disconnected. The fuse unit (130, 230, 430, 530) that can be fused under a high current is provided at the connection between the anode of the sub-pixel light-emitting unit (112, 212, 312, 412) and the sub-pixel drive unit (122, 222, 322, 422, 522), and then when a bright spot abnormality occurs in the sub-pixel light-emitting unit (112, 212, 312, 412), that is, when the output current of the sub-pixel light-emitting unit (112, 212, 312, 412) is greater than the fusing current threshold, the fuse unit (130, 230, 430, 530) is automatically fused so that the bright spot abnormality is automatically repaired, thereby greatly shortening the repair duration of the abnormal bright spot, improving a display effect and improving panel production efficiency.
Inventors:
ZHAO SUIXIN (CN)
Application Number:
PCT/CN2020/073427
Publication Date:
July 08, 2021
Filing Date:
January 21, 2020
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
G09G3/3225
Foreign References:
| US20150213756A1 | 2015-07-30 | |||
| CN106782318A | 2017-05-31 | |||
| CN206282593U | 2017-06-27 | |||
| CN106531079A | 2017-03-22 | |||
| CN206271396U | 2017-06-20 | |||
| JP2011164219A | 2011-08-25 | |||
| JP2009003009A | 2009-01-08 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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