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Transient control drive method and circuit, and image display system thereof

A driving method and a driving circuit technology, applied to static indicators, instruments, etc., can solve the problems of time extension and other problems, and achieve the effects of improving performance, reducing power consumption, and eliminating delay phenomena

Active Publication Date: 2009-07-01
INNOLUX CORP
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Problems solved by technology

[0012] To sum up, when the known driving scheme is adopted under the condition of active matrix driving, since the capacitance of the liquid crystal depends on the effect of the voltage, even if the response time of the liquid crystal is shorter than the addressing period, the pixel is switched from a first brightness state The time required to reach a second brightness state is still significantly longer

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  • Transient control drive method and circuit, and image display system thereof
  • Transient control drive method and circuit, and image display system thereof
  • Transient control drive method and circuit, and image display system thereof

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Embodiment Construction

[0043] The present invention is fully described by the accompanying drawings containing preferred embodiments of the present invention, but before proceeding to this description, it should be understood that those skilled in the art can modify the invention described herein while obtaining the efficacy of the present invention. Therefore, it should be understood that the following description is a broad disclosure for those skilled in the art, and its content is not intended to limit the present invention.

[0044] The present invention relates to an image display system having a plurality of pixels. The present invention proposes a driving scheme to improve the switching behavior of pixels without extra cost and complex signal processing solutions.

[0045] refer to figure 1 , which shows a pixel 10 according to an embodiment of the present invention. The pixel 10 has a storage capacitor 11 , a liquid crystal (LC) capacitor 12 and three switches 13 , 14 , 15 representing a...

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Abstract

The present invention relates to a transient control drive method, for driving a liquid crystal capacitor of a pixel circuit from a first voltage level to a second voltage level, comprises: driving the liquid crystal capacitor from the first voltage level to an intermediate voltage level; and driving the liquid crystal capacitor from the intermediate voltage level to the second voltage level. The present invention further provides a transient control drive circuit and an image display system thereof.

Description

technical field [0001] The present invention relates to an image display system, in particular to a transient control driving method, a circuit and an image display system thereof. Background technique [0002] It is known that a change in the capacitance of a liquid crystal (LC) element after a pixel is addressed affects the switching time of a pixel in an image display system, especially an active matrix liquid crystal display. [0003] Taking a TN-type liquid crystal display, which is usually white, as an example, when switching between different brightness states, the capacitance of the pixel will also change accordingly. The liquid crystal element has a relatively low capacitance when it is in the bright state, and it has a relatively low capacitance when it is in the dark state. It has a relatively high capacitance. Generally speaking, the response time of the liquid crystal element (that is, the time required to switch from one brightness state to another) is longer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3648G09G2360/16G09G2310/0251G09G2320/0252G09G2320/0219
Inventor 爱德华兹·马丁
Owner INNOLUX CORP
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