VIDEO PROCESSING CIRCUIT, VIDEO PROCESSING METHOD, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS

摘要

A video processing circuit detects a boundary between a first pixel to which an application voltage which is a first voltage is applied, and a second pixel to which an application voltage which is a second voltage higher than the first voltage is applied, based on a video signal indicating a video which alternately switches a first video and a second video which is obtained by moving in parallel with the first video for each unit frame, corrects the application voltage such that a fringe electric field occurring at the boundary is decreased, when determining a boundary detected by the boundary detection unit in a kth unit frame does not exist in a (k−2)th unit frame, and the boundary is a boundary which is moved from a (k−1)th unit frame to the kth unit frame, and outputs the corrected video signal such that the liquid crystal panel is driven.

主权项

1. A video processing circuit comprising:
a boundary detection unit that detects a boundary between a first pixel to which an application voltage which is a first voltage is applied, and a second pixel to which an application voltage which is a second voltage higher than the first voltage is applied, based on a video signal which designates the application voltage for each pixel of a liquid crystal panel having a plurality of pixels for each unit frame, and indicates a video which alternately switches between a first video and a second video which is obtained by moving in parallel with the first video for each unit frame; a first determination unit that determines whether or not a boundary detected by the boundary detection unit in a kth (k is a natural number) unit frame exists in a (k−2)th unit frame; a second determination unit that determines whether or not the boundary detected in the kth unit frame is a boundary which is moved from a (k−1)th unit frame to the kth unit frame; a correction unit that sets as a correction target pixel a pixel which is in contact with a boundary that is determined not to exist in the (k−2)th unit frame by the first determination unit and that is determined to have moved from the (k−1)th unit frame to the kth unit frame by the second determination unit, among the boundaries detected in the kth unit frame, and corrects the application voltage in such a manner that a fringe electric field occurring at the boundary is decreased; and an output unit that outputs a signal according to a video signal in which the application voltage is corrected by the correction unit, in such a manner that the liquid crystal panel is driven based on the signal.