Invention Grant
- Patent Title: Pixel circuit and display apparatus
- Patent Title (中): 像素电路和显示设备
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Application No.: US11526600Application Date: 2006-09-26
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Publication No.: US07659872B2Publication Date: 2010-02-09
- Inventor: Junichi Yamashita , Katsuhide Uchino
- Applicant: Junichi Yamashita , Katsuhide Uchino
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JPP2005-294308 20051007
- Main IPC: G09G3/30
- IPC: G09G3/30

Abstract:
Disclosed herein is a pixel circuit that includes a correcting section configured to correct the input voltage sampled in the pixel capacitance in order to cancel out the dependency of the output current on the carrier mobility. In the pixel circuit, the correcting section operates depending on the control signal supplied from the scanning line to extract the output current from the drive transistor and introduce the extracted output current into a capacitance of the light-emitting device and the pixel capacitance, thereby correcting the input voltage. The pixel circuit further includes an additional capacitance added to the capacitance of the light-emitting device. In the pixel circuit, a portion of the output current extracted from the drive transistor flows into the additional capacitance to give a time margin to operation of the correcting section.
Public/Granted literature
- US20070152920A1 Pixel circuit and display apparatus Public/Granted day:2007-07-05
Information query
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