Patent ID: 7667777
Filing Date: 2010-02-23
Classification: G09G

Abstract:
1. A display device, comprising: a data input unit configured to convert an image signal to a color signal; a brightness control unit operationally coupled to the data input unit, configured to extract a maximum and minimum brightness level associated with the color signal, to subdivide the brightness level associated with the color signal according to the extracted minimum brightness value and a difference between the extracted maximum brightness value and the extracted minimum brightness value, and to apply a voltage to each brightness level subdivision to control brightness of the color signal; and a display unit configured to display the color signal according to controlled brightness, wherein the brightness control unit: subdivides voltage sections associated with brightness level subdivisions, maps brightness values associated with the brightness level subdivisions to the voltage sections, and subdivides the brightness level equal to a number of maximum brightness levels which may be displayed for the voltage sections which have a degree of distribution of the brightness value greater than the reference value.