LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF DRIVING THE SAME

摘要

A liquid crystal display device that performs intermittent driving involving a driving period and an idle period includes a gray scale level control unit that generates, from an input image signal, an image signal for display and an image signal for correction. A signal line control unit writes the image signal for correction to the plurality of signal lines before writing the image signal for display during a driving period. An LUT stores a correction gray scale value associated with a gray scale value of at least a current frame. An adding circuit corrects the input image signal based on the correction gray scale value read from the LUT. The subtracting circuit specifies, in a pixel region, a regular image pattern including at least a first pixel and a second pixel and changes an output from the adding circuit for the first image by a predetermined gray scale width.

主权项

1. A liquid crystal display device that performs intermittent driving involving a driving period and an idle period, the liquid crystal display device comprising:
a plurality of scan lines; a plurality of signal lines crossing the plurality of scan lines; a pixel-forming unit provided at the intersection of each of the plurality of scan lines and each of the plurality of signal lines; a scan line control unit that scans the plurality of scan lines by selecting one after another of the scan lines; a gray scale level control unit that generates, from an input image signal, an image signal for display and an image signal for correction; and a signal line control unit that writes the image signal for correction to the plurality of signal lines before writing the image signal for display during a driving period, wherein the gray scale level control unit includes: a correction value storage unit that stores a correction gray scale value associated with a gray scale value of at least a current frame of the input image signal; a first correction circuit that corrects the input image signal based on the correction gray scale value read from the correction value storage unit; and a second correction circuit that specifies, in a pixel region including the pixel-forming unit, a regular image pattern including at least a first pixel and a second pixel and changes an output from the first correction circuit for the first pixel by a predetermined gray scale width.