Invention Grant
US08094108B2 Liquid crystal display device and liquid crystal display driving circuit 有权
液晶显示装置和液晶显示驱动电路

Liquid crystal display device and liquid crystal display driving circuit
Abstract:
A gradation voltage adjustment section for increasing a positive gradation voltage VHX of an X-th gradation and a negative gradation voltage of the X-th gradation so that the increment corresponds to a charge pull-in amount ΔV is provided in a gradation voltage generation circuit of each source driver. In at least one embodiment, a center value between the positive and negative gradation voltages is adjusted for each driver in accordance with a slant of the charge pull-in amount ΔV in a direction of a gate signal line, thereby suppressing a flicker without varying a gradation characteristic. Further, a center value between the positive and negative gradation voltages is adjusted for each horizontal line or for every plural lines in a single frame in accordance with a horizontal direction deviation and a vertical direction deviation of the charge pull-in amount ΔV in a transfer block, thereby suppressing a flicker without varying a gradation characteristic.
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