Pixel circuit, liquid-crystal device, and electronic device

A technology of pixel circuit and pixel electrode, applied in the field of pixel circuit, can solve the problem of image quality deterioration, etc., and achieve the effect of improving accuracy

Inactive Publication Date: 2011-08-31
JAPAN DISPLAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the image quality of the display deteriorates when the writing time interval increases

Method used

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  • Pixel circuit, liquid-crystal device, and electronic device
  • Pixel circuit, liquid-crystal device, and electronic device
  • Pixel circuit, liquid-crystal device, and electronic device

Examples

Experimental program
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Effect test

Embodiment Construction

[0029]

[0030] figure 1 is a block diagram showing a schematic configuration of an electro-optical device according to an embodiment of the present invention. The electro-optic device 1 includes an electro-optic panel AA and a control circuit 700 . On the electro-optical panel AA, a display area A, a scanning line driving circuit 100, and a data line driving circuit 200 are formed. In the display area A, m scanning lines 102 are formed parallel to the X direction. In addition, n data lines 103 are formed in parallel to the Y direction perpendicular to the X direction. Furthermore, the pixel circuit 400A is provided in such a manner as to correspond to each crossing portion of the scanning line 102 and the data line 103 .

[0031] The scan line driving circuit 100 generates scan signals Y1 , Y2 , Y3 , . . . , Ym for sequentially selecting a plurality of scan lines 102 .

[0032] The data line driving circuit 200 respectively provides data signals X1, X2, X3, . . . , Xn t...

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PUM

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Abstract

The invention provides a pixel circuit, a liquid-crystal device and an electronic device. The pixel circuit that is connected with a scanning line and a data line includes a first transistor of which a gate electrode is connected with the scanning line and one of a source electrode and a drain electrode is connected with the data line, a second transistor of which a gate electrode is connected with the scanning line, one of a source electrode and a drain electrode is connected with the first transistor, and the other one of the source electrode and the drain electrode is connected with a first node, an auxiliary capacitor connected with a node at which the first transistor and the second transistor are connected to each other, a pixel electrode connected with the first node, a counter electrode opposed to the pixel electrode, liquid crystal held between the pixel electrode and the counter electrode, and a holding capacitor connected with the first node.

Description

technical field [0001] The present invention relates to a pixel circuit, a liquid crystal device including the pixel circuit, and an electronic device including the liquid crystal device. Background technique [0002] Medium-sized and small-sized displays represented by liquid crystal display devices are applied to many portable electronic devices such as mobile phones, digital cameras, digital video cameras, digital photo frames, and electronic papers due to their portability. Portable electronic devices are generally driven by batteries, so that displays used in portable electronic devices are required to have low power consumption from the viewpoint of ensuring operation time. [0003] A liquid crystal display device includes a plurality of pixels arranged in a matrix. An image is displayed by writing a voltage corresponding to a gradation to be displayed in each of the plurality of pixels, and controlling transmittance of liquid crystal depending on the written voltage....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/36
CPCG09G3/3648G09G2330/021G09G2300/0819G09G2300/0876
Inventor 有贺修二小间德夫广泽考司
Owner JAPAN DISPLAY INC
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