Patent ID: 7999775

Claim:
A viewing angle controllable liquid crystal display device comprising: a liquid crystal panel including a plurality of color pixels, each of the color pixels having color subpixels and at least one interference subpixel; an interference area control unit that receives a selection area data (SAD), a partial interference mode signal (PEM), and a wide/narrow mode control signal (W/N), for modulating the wide/narrow mode control signal (W/N) based on the selection area data (SAD) to generate a modulated wide/narrow mode control signal (M-W/N); an interference data generating unit that receives video data (VD), that includes color subpixel data, and a modulated wide/narrow control signal (M-W/N), for generating interference data (IFD), that includes interference subpixel data (Ed) and offset subpixel data (Eoff), in response to the modulated wide/narrow mode control signal (M-W/N); a data combining unit for combining the interference data (IFD), that includes interference subpixel data (Ed) and offset subpixel data (Eoff) from the interference data generating unit, with the video data (VD), that includes color subpixel data; and a driving circuit for driving the color subpixels and the interference subpixels on the liquid crystal panel using the combined interference data (IFD) and the video data (VD), that includes color subpixel data, from the data combining unit.