Patent ID: 7199774
Filing Date: 2007-04-03
Classification: G09G

Abstract:
1. A liquid crystal display, comprising: a power device; a display unit array; a scan driver, coupled to the power device, outputting a plurality of scan signals to the display unit array, wherein the scan driver sequentially outputs the scan signals to the display unit array in normal operation of the liquid crystal display, and the scan driver outputs an erase signal and all the scan signals during shutdown and power on processes of the liquid crystal display; a selection device having a first input terminal coupled to the power device, a first output terminal coupled to the scan driver, a second output terminal, and a first control terminal, wherein when the first control terminal receives the erase signal, and the selection device couples the first input terminal to the second output terminal; and a current limiting device, coupled between the second output terminal and the scan driver, limiting instantaneous current from the power device when the scan driver simultaneously outputs all the scan signals.