LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a liquid crystal display device of which the reduction in performance due to changes in illuminance of external light can be prevented. SOLUTION: A gradient value which is a variation of a gradation tendency value to a variation of a precharge voltage with an exposure time fixed is calculated (step S5), and a target gradation tendency value is calculated from the gradient value (step S7). In order to obtain the target gradation tendency value from a multi-gradation image, the exposure time is varied with the precharge voltage fixed (step S13), and the precharge voltage is varied with the exposure time fixed (step S15). COPYRIGHT: (C)2007,JPO&INPIT