| 摘要 |
A liquid crystal display (LCD) device and an apparatus for controlling a liquid crystal display which can perform luminance adjustment no matter what illumination method is employed are provided. An image display screen is divided into a plurality of small regions, and a plurality of counter electrodes 26 are provided for the respective small regions such that the counter electrodes are arranged at positions opposing pixel electrodes with a liquid crystal layer therebetween. When the LCD displays an image, each dimming processor 36 obtains a brightness value of an image in an associated small region based on image data of the image to be displayed, obtains a common-line signal potential to be supplied to the associated counter electrode according to the obtained brightness value, and generates and supplies a correction signal according to the potential to a buffer circuit 40 associated with the counter electrode concerned. The buffer circuits 40 correct reference voltages supplied from a counter electrode drive inverter 38 according to the correction signals supplied from the dimming processors 36, and apply them as common-line signals to the respective counter electrodes 26.
|
