Patent ID: 8378945
Filing Date: 2013-02-19
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a pair of substrates including electrodes formed on the respective substrates; a liquid crystal layer interposed between the pair of substrates; a plurality of pixels arranged in a matrix on the substrates; signal lines arranged in a column direction on one of the substrates, each of signal lines connected to the pixels arranged in the column direction to supply bit signals corresponding to an image signal; control lines arranged in a row direction, the control lines selecting pixels arranged in the row direction to supply a plurality of control signals to write and hold the bit signals corresponding to the image signal to the selected pixels; and each pixel comprising, a static memory to hold the bit signals, a switch element to take in the bit signals corresponding to the image signal to the static memory, a polarity control circuit to control the held bit signals, and a driving voltage generator to supply voltages generated by the bit signals to the liquid crystal layer, wherein the transmittance of the liquid crystal layer is changed corresponding to the bit signals, and wherein the liquid crystal display device further comprises an inverter to invert a common voltage, and a switch to control a supply of the inverted common voltage to the signal line to prevent a display time lag when the liquid crystal display device becomes power on or off, and the power abruptly decreases.