发明名称 |
Liquid crystal display and driving method thereof |
摘要 |
A liquid crystal display device that are adapted to display a certain information to a user when no signal is input after a power was applied to the liquid crystal display device. In the device, a liquid crystal display panel has pixel electrodes arranged in a matrix type. A timing controller generates and outputs control signals for driving the liquid crystal display panel in response to a timing synchronizing signal inputted from the exterior thereof, and re-arranges and outputs an input data. A drive circuit is connected between the liquid crystal display panel and the timing controller to display a data inputted from the timing controller on the liquid crystal display panel in response to the control signal. An oscillator generates a pre-synchronizing signal having a desired frequency to apply the same to the timing controller. A signal presence determiner compares the timing synchronizing signal with the pre-synchronizing signal to generate a determining signal indicating an input existence of the timing synchronizing signal. A control signal generator generates a control signal on the basis of the pre-synchronizing signal in response to a determining signal indicating no input of the timing synchronizing signal. A data storage device stores a certain picture data and outputs the picture data to the drive circuit in response to the determining signal indicating no input of the timing synchronizing signal.
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申请公布号 |
US6525720(B1) |
申请公布日期 |
2003.02.25 |
申请号 |
US20000651261 |
申请日期 |
2000.08.30 |
申请人 |
LG. PHILIPS LCD CO., LTD. |
发明人 |
BAEK JONG SANG |
分类号 |
G02F1/133;G09G3/20;G09G3/36;G09G5/00;G09G5/18;(IPC1-7):G09G5/00 |
主分类号 |
G02F1/133 |
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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