Invention Grant
- Patent Title: Pixel circuit and method for improving image quality at low driving frequency
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Application No.: US17164657Application Date: 2021-02-01
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Publication No.: US11295669B2Publication Date: 2022-04-05
- Inventor: Seong Min Wang , Jihye Kong , Yongho Yang , Jeong-Soo Lee
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR Yongin-Si
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin-Si
- Agency: Innovation Counsel LLP
- Priority: KR10-2020-0029483 20200310
- Main IPC: G09G3/3233
- IPC: G09G3/3233 ; G09G3/20 ; G09G3/3266 ; G09G3/3291

Abstract:
A pixel circuit includes a light-emitting element, a first transistor, a second transistor operating based on a first gate signal, a third transistor operating based on a second gate signal, a fourth transistor operating based on an initialization control signal, a fifth transistor operating based on an emission control signal, a sixth transistor operating based on the emission control signal, a seventh transistor, of which one terminal is connected to the light-emitting element, operating based on a bias control signal, an eighth transistor, of which one terminal is connected to the driving transistor, operating based on the bias control signal, a storage capacitor, and the light-emitting element. The pixel circuit performs a display-scan operation in a first case where a driving time of a panel driving frame is a minimum driving time and performs a display-scan operation and at least one self-scan operation in a second case where the driving time is different from the minimum driving time.
Public/Granted literature
- US20210287605A1 PIXEL CIRCUIT Public/Granted day:2021-09-16
Information query
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