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Driving device and driving method of LCD

A liquid crystal display and driving device technology, applied in the field of driving technology, can solve problems such as increasing chip cost, increasing chip area, and not conforming to the trend of electronic products, and achieve the effect of improving quality

Inactive Publication Date: 2012-05-30
华映视讯(吴江)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if more previous frames are used, more storage units must be used to store the above-mentioned multiple previous frames
Too many storage units will increase the area of ​​the chip and increase the cost of chip manufacturing, which is not in line with the current trend of electronic products

Method used

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  • Driving device and driving method of LCD
  • Driving device and driving method of LCD
  • Driving device and driving method of LCD

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Embodiment Construction

[0019] In the known overdrive technology, the current image can be adjusted more precisely according to more previous images. However, this method also needs to use more storage units, which not only increases the area of ​​the chip, but also increases the cost of chip manufacturing.

[0020] In view of this, in the embodiment of the present invention, whether the plurality of continuous images are substantially the same can be continuously compared, so as to generate a plurality of comparison results. The above comparison results are only used to indicate whether two consecutive images are substantially the same, so the data volume occupied by the comparison results is relatively small, that is, only a small-capacity storage unit is required to store the above comparison results. On the other hand, various image processing can be performed on the current image to generate a plurality of processed current images. Then, one of the current image and the above-mentioned processe...

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Abstract

A driving device comprises a storage unit, a comparator, a compensator and a selector, wherein the storage unit provides the previous image and the previous comparison result; the comparator compares whether the current image is the same as the previous image substantially so as to output the current comparison result; the compensator can process the current image according to the previous image so as to generate a plurality of process current images; the selector can output by selecting one of the process current images according to the previous comparison result and the current comparison result. Therefore, the space of the storage unit can be saved and the quality of the image can be improved.

Description

technical field [0001] The present invention relates to a driving technology, and in particular to a driving technology of a liquid crystal display. Background technique [0002] Due to the advantages of small size and low power consumption, liquid crystal displays have gradually replaced the screens of traditional cathode ray tubes. Whether it is as small as a mobile phone screen or as large as a large advertising billboard, it can be seen that the screen uses a liquid crystal display. However, for dynamic images, the twisting speed of the liquid crystal cells in the liquid crystal display is too slow. Therefore, image sticking and blurring may occur on the picture of the liquid crystal display, resulting in poor quality of dynamic images. [0003] At present, the control circuit of the liquid crystal display will perform an overdrive action on each liquid crystal unit that needs to change its state in order to increase the twisting speed of the liquid crystal unit. Ther...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/20
Inventor 陈建宏邱俊杰
Owner 华映视讯(吴江)有限公司