Patent ID: 7495646

Claim:
A display device comprising: a plurality of gate lines; a plurality of drain lines; and a plurality of pixels, each of said plurality of pixels having a switching element coupled to a corresponding one of said plurality of gate lines and a corresponding one of said plurality of drain lines; wherein said display device is configured to switch between a first operating mode and a second operating mode; where said first operating mode is such that each of said plurality of gate lines are selected two times during one frame period, and thereby video signals and signals corresponding to blanking data are written into said plurality of pixels, and said second operating mode is such that each of said plurality of gate lines are selected once during one frame period, and thereby video signals are written into said plurality of pixels, but the signals corresponding to the blanking data are not written into said plurality of pixels; and wherein said first operating mode generates said video signals by using a first group of gray scale voltages, and said second operating mode generates said video signals by using a second group of gray scale voltages.