Patent ID: 6456266
Filing Date: 2002-09-24
Classification: G09G

Abstract:
A liquid crystal display apparatus, comprising:a liquid crystal device including a pair of substrates and a layer of liquid crystal disposed between the substrates so as to form a matrix of pixels, and drive means for driving each pixel in a succession of frame periods each having a duration, in milliseconds, of Fr and divided into a first period and a second period in succession so as to display a first luminance corresponding to given picture data at the pixel in the first period and a second luminance below or equal to the first luminance and common to all the pixels in the second period under a condition satisfying: Tap+(&tgr;offâˆ’&tgr;on)/2Fr=Ts&lE;0.6, wherein Tap represents a time aperture ratio determined as a ratio between the first period and one frame period Fr, &tgr;on represents a rise time, in milliseconds, required for a luminance change of from 0% to 90% during a switching from 0%-luminance to 100%-luminance, and &tgr;off represents a fall time, in milliseconds, required for a luminance change of from 100% to 10% during switching from 100%-luminance to 0%-luminance based on a normalized luminance scale with 100% at a maximum luminance and 0% at a minimum luminance of each pixel, wherein Ts is set to be equal to all the pixels.