Patent ID: 6249270
Filing Date: 2001-06-19
Classification: G09G

Abstract:
A liquid crystal display device comprising:a liquid crystal display panel including a plurality of first bus lines, a plurality of second bus lines crossing said first bus lines, and a plurality of pixels formed at the intersections of said first and second bus lines;at least one gate driver for sequentially scanning said pixels through said first bus lines;at least one data driver for supplying a drive voltage for displaying a predetermined display data to selected ones of said pixels on said first bus lines through said second bus lines;a maximum amplitude display data detecting unit for detecting the display data corresponding to the maximum drive voltage having a maximum amplitude outputted from said data driver; anda variable output voltage type power source circuit portion for generating a power source voltage to be applied to said data driver and capable of changing said power source voltage based on the result of detection by said maximum amplitude display data detecting unit;wherein said power source voltage required for displaying said display data is selected and supplied to said data driver for each predetermined period.