Invention Grant
- Patent Title: Device for driving a liquid crystal display
- Patent Title (中): 用于驱动液晶显示器的装置
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Application No.: US12037611Application Date: 2008-02-26
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Publication No.: US08279149B2Publication Date: 2012-10-02
- Inventor: Seung-Woo Lee , Young-Ki Kim
- Applicant: Seung-Woo Lee , Young-Ki Kim
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR
- Agency: Innovation Counsel LLP
- Priority: KR10-2002-0080816 20021217
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
An apparatus of driving a liquid crystal display (LCD) includes a gray voltage generator generating a range of gray voltages that correspond to different LC light transmittance levels. These gray voltages, along with image data, are fed into a data driver. The data driver converts the gray voltages to a data voltage that properly generates the image indicated by the image data. The gray voltage values are chosen from a wider range of values than the pixel voltages, and this conversion may include determining a conversion factor based on the relative range sizes. This conversion may also include calculating the voltage difference between the previous data and the current data and adjusting the data voltage according to the magnitude of this difference. Generally, the larger the voltage difference, the larger is the data voltage magnitude that is needed to bring the pixel voltage to the target voltage within limited time.
Public/Granted literature
- US20080211758A1 LIQUID CRYSTAL DISPLAY HAVING GRAY VOLTAGES AND DRIVING APPARATUS AND METHOD THEREOF Public/Granted day:2008-09-04
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