Patent ID: 7746306

Claim:
A display device comprising: a plurality of pixels arranged in a matrix array; a selector circuit for selecting one from a plurality of rows of pixels in said matrix array; and a video signal supplying circuit for supplying a video signal to each of pixels in said selected row in synchronism with said selection of said selected row, said video signal supplying circuit including: a digital data store section for storing n-bit data information for each of said plurality of pixels, n being an integer equal to or greater than 3; a transfer-data processing section for generating a data signal at a time assigned to one of a plurality of gray scale levels represented by said n-bit data information, in accordance with an output from said digital data store section; a gray-scale voltage generator for generating a plurality of gray-scale voltages corresponding to said plurality of gray scale levels, respectively; and a gray-scale voltage selector circuit section in which individual said gray-scale voltages are successively-selected within one horizontal period, the gray-scale voltage selector circuit section adapted to select and output as said video signal, a voltage signal selected from among the successively-selected said plurality of gray-scale voltages, based upon said time associated with said data signal; wherein each of said plurality of gray-scale voltages are transferred through one of a plurality of gray-scale voltage lines, wherein said plurality of gray-scale signal voltage lines are common to all pixels in said selected row, and wherein each gray-scale voltage is constant during one horizontal period.