Patent ID: 8816948

Claim:
A video processing circuit, which includes a liquid crystal panel provided with pixel electrodes provided on a first substrate, a common electrode provided on a second substrate, and liquid crystal elements having liquid crystal interposed between the pixel electrodes and the common electrode, and designates an applied voltage, which is applied to the liquid crystal elements, to the liquid crystal panel based on a video signal, the video processing circuit comprising: a boundary detection unit that detects a specific boundary, which is a part of a boundary of a first pixel for which an applied voltage designated by the video signal is less than a first voltage, and a second pixel for which the applied voltage is more than a second voltage larger than the first voltage, the specific boundary being determined by tilt azimuth of the liquid crystal; and a replacement unit that replaces an applied voltage to a liquid crystal element corresponding to the first pixel with a predetermined voltage from the applied voltage designated by the input video signal when the applied voltage designated by the video signal is less than a third voltage smaller than the first voltage with respect to the first pixel adjacent to the specific boundary, wherein when an applied voltage designated by a video signal of the second pixel is less than the third voltage with respect to the first pixel adjacent to the specific boundary and at least one first pixel continuous to the first pixel, the replacement unit replaces an applied voltage to a liquid crystal element corresponding to the second pixel with the predetermined voltage from the applied voltage designated by the video signal, and when a time interval in which display of the liquid crystal panel is updated is defined as S and a response time of the liquid crystal element when an applied voltage is switched to the third voltage from a voltage less than the third voltage is defined as T, if S<T, the number of the at least one first pixel continuous to the first pixel adjacent to the specific boundary is a value of an integer part of a value obtained by dividing the response time T by the time interval S.