发明名称 |
Liquid crystal display, driving apparatus, digital-analog converter and output voltage amplifier thereof |
摘要 |
The present invention relates to a liquid crystal display, a driving device thereof, a digital to analog converter, and an output voltage amplifying circuit. The present invention provides a liquid crystal display driving device including a reference gray voltage generator for generating a plurality of reference gray voltages, and a data driver for generating a plurality of gray voltages based on the plurality of reference gray voltages and applying a data signal that is generated by selecting a gray voltage corresponding to m-bit video signals applied from the outside from among the plurality of gray voltages to the pixel The data driver includes: a voltage generator for selecting a first gray voltage and a second gray voltage corresponding to bit values of (m−k) bits from among the video signal from among the plurality of gray voltages, and outputting the first and second gray voltages; an output voltage generator for outputting 2k voltages determined as one of the first and second gray voltages corresponding to bit values of k bits from among the video signal; and an output voltage amplifier for generating the data signal by combining the 2k voltages, and applying the data signal to a plurality of pixels. According to the present invention, a liquid crystal display having a small cost and area can be realized. |
申请公布号 |
US8294657(B2) |
申请公布日期 |
2012.10.23 |
申请号 |
US20080452341 |
申请日期 |
2008.06.24 |
申请人 |
KIM BYUNG-DOO;PARK HEE-JONG;NO JU-YOUNG;LEE SANG-HOON;MC TECHNOLOGY, CO., LTD. |
发明人 |
KIM BYUNG-DOO;PARK HEE-JONG;NO JU-YOUNG;LEE SANG-HOON |
分类号 |
G09G3/36 |
主分类号 |
G09G3/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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