Invention Grant
US08552939B2 Pixel circuit, display device, driving method of pixel circuit, and driving method of display device
有权
像素电路,显示装置,像素电路的驱动方法以及显示装置的驱动方法
- Patent Title: Pixel circuit, display device, driving method of pixel circuit, and driving method of display device
- Patent Title (中): 像素电路,显示装置,像素电路的驱动方法以及显示装置的驱动方法
-
Application No.: US12929836Application Date: 2011-02-18
-
Publication No.: US08552939B2Publication Date: 2013-10-08
- Inventor: Katsuhide Uchino , Junichi Yamashita
- Applicant: Katsuhide Uchino , Junichi Yamashita
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2004-198056 20040705; JP2004-198057 20040705; JP2004-201223 20040708; JP2004-215056 20040723
- Main IPC: G09G3/30
- IPC: G09G3/30

Abstract:
A pixel circuit, disposed at a part where a scanning line and a signal line intersect each other, includes at least an electrooptic element, a drive transistor, a sampling transistor, and a retaining capacitance. The drive transistor has a gate connected to an input node, a source connected to an output node, and a drain connected to a predetermined power supply potential and supplies a driving current to the electrooptic element according to a signal potential retained in the retaining capacitance. The electrooptic element has one terminal connected to the output node and another terminal connected to a predetermined potential. The sampling transistor is connected between the input node and the signal line and operates when selected by the scanning line, samples an input signal from the signal line, and retains the input signal in the retaining capacitance. The retaining capacitance is connected to the input node. The pixel circuit further includes a compensating circuit which detects a decrease in the driving current from a side of the output node and feeds back a result of detection to a side of the input node to compensate for a decrease in the driving current, which decrease is attendant on a secular change of the drive transistor.
Public/Granted literature
- US20110169812A1 Pixel circuit, display device, driving method of pixel circuit, and driving method of display device Public/Granted day:2011-07-14
Information query
IPC分类: