Patent ID: 8451206
Filing Date: 2013-05-28
Classification: G09G

Abstract:
1. A liquid crystal display device with field sequential driving comprising: a liquid crystal display panel including a pair of substrates and a liquid crystal layer held between the pair of substrates; an area light source device which illuminates the liquid crystal display panel; a driving unit which drives the liquid crystal display panel and the area light source device; and a control unit which controls the driving unit, wherein the liquid crystal display panel includes a plurality of display pixels which are arrayed in a matrix, the area light source device includes plural light sources of different colors which are successively turned on in one frame period, the one frame period includes a plurality of sub-frame periods in which the plural light sources of different colors are turned on, respectively, the control unit includes means for controlling the driving unit in a manner to execute video signal write for writing a video signal in the plurality of display pixels and reset signal write for writing a reset signal in the plurality of display pixels after the video signal write, in a sub-frame period of the plurality of sub-frame periods, and means for controlling the driving unit in a manner to write a voltage signal, corresponding to black display and having a polarity opposite to a polarity of the reset signal in a last sub-frame period in the one frame period, in the plurality of display pixels between the last sub-frame period in the one frame period and a first sub-frame period in a next frame period, and the video signal write and the reset signal write are executed with the same polarity, and a polarity of potential of the plurality of display pixels is reversed between the one frame period and the next frame period.