Patent ID: 7262755

Claim:
An image display device comprising: a display panel having a plurality of the first direction signal lines arranged in a first direction, a plurality of the second direction signal lines arranged in a second direction, said plurality of second direction signal lines intersecting said plurality of first direction signal lines, and a plurality of pixels coupled to said first direction signal lines and said second direction signal lines, wherein three of said pixels representing red, green and blue form one dot; a first direction driver which outputs driving voltages to said first direction signal lines; a second direction driver which scans said second direction signal lines in synchronism with driving by said first direction driver; and a converter for inputting a first multi-tone digital data and a second multi-tone digital data in serial and outputting said first multi-tone digital data and said second multi-tone digital data in parallel, wherein said first direction driver has a first port and a second port and receives the first multi-tone digital data for red, green and blue via said first port and the second multi-tone digital data for red, green and blue via said second port, wherein said first multi-tone digital data includes three N-bits corresponding to red, green and blue to display a multi-color at a first dot of said display panel, where N is an integer number not less than two, wherein said second multi-tone digital data includes three N-bits corresponding to red, green and blue to display a multi-color at the second dot of said display panel, and wherein said first direction driver provides a first driving voltages corresponding to said first multi-tone digital data for red, green and blue to said first dot and provides a second driving voltages corresponding to said second multi-tone digital data for red, green and blue to said second dot.