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Device for driving liquid crystal display

A technology of liquid crystal display and driving device, applied in static indicators, instruments, etc., can solve problems such as power waste

Inactive Publication Date: 2007-02-21
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yet at the same time, the second-stage data drive device 61 until the n-th stage data drive device 63, although they do not receive a start signal to store image data, still operate because they receive a clock signal, thus causing unnecessary power consumption. waste
[0006] From the above description, it can be known that only one level of data driving device will store image data within a specific time, however, the other levels of data driving devices will operate due to receiving the clock signal, thus causing unnecessary waste of power

Method used

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  • Device for driving liquid crystal display
  • Device for driving liquid crystal display
  • Device for driving liquid crystal display

Examples

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Embodiment Construction

[0024] Some embodiments of the invention are described in detail below. However, in addition to the detailed description, the present invention can also be widely implemented in other embodiments, and the scope of the present invention is not limited by the following embodiments, but is subject to the scope of the subsequent patent applications.

[0025] image 3 A structural diagram of a liquid crystal display according to an embodiment of the present invention is shown. As shown in the figure, it includes a signal generating device 110 , a gray scale reference voltage generating device 120 , a DC voltage converting device 130 , a liquid crystal panel 140 , a multi-level data driving device, and a multi-level scanning driving device 150 .

[0026] In this embodiment, the gray-scale reference voltage generating device 120 is also used to generate the gray-scale reference voltage for the multi-level data driving device to adjust the gray-scale tone of the image on the display....

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Abstract

A driving device of liquid crystal display is featured as avoiding transmitting clock signal to data driving unit not required to store image data in order to decrease unnecessary power consumption at various stages of data driving units.

Description

technical field [0001] The invention relates to a driving device of a liquid crystal display, in particular to a driving device of a liquid crystal display which saves power consumption and reduces electromagnetic interference. Background technique [0002] figure 1 A diagram showing a conventional LCD architecture. It includes a traditional signal generating device 10 , a gray scale reference voltage generating device 20 , a DC voltage converting device 30 , a liquid crystal panel 40 , a multi-level data driving device, and a multi-level scanning driving device 50 . [0003] The gray-scale reference voltage generating device 20 is used to generate gray-scale reference voltages for the multi-level data driving device to adjust the gray-scale tone of the image on the display. The DC voltage converting device 30 is used for providing voltages to the signal generating device 10 , the gray scale reference voltage generating device 20 , the multi-level data driving device, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/20G02F1/133
Inventor 杨智翔许胜凯杜明鸿
Owner AU OPTRONICS CORP
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