Patent ID: 7202458
Filing Date: 2007-04-10
Classification: G02F,G09G

Abstract:
1. A display comprising: a liquid crystal display panel; a back light to illuminate the liquid crystal display panel; an inverter to supply electric power to the back light and adjust an intensity of illumination of the back light; a selector to select a function to adjust the intensity of illumination of the back light according to at least one of an environmental intensity of illumination and a brightness distribution data of an inputted video signal; a brightness distribution data detector to detect the brightness distribution data of the inputted video signal; a sensor to sense the environmental intensity of illumination; a controller to determine a lightness of an image based on at least one of the environmental intensity of illumination sensed by the sensor for an environmental intensity of illumination and the brightness distribution data detected by the brightness distribution data detector according to a selection through the selector and to control the inverter to adjust the intensity of illumination of the back light according to the determined lightness; and a contrast intensifier to intensify a contrast of the inputted video signal to a predetermined gain and to supply the intensified contrast to the brightness distribution data detector.