Patent ID: 6909442
Filing Date: 2005-06-21
Classification: G09G

Abstract:
1. A display device, comprising: a plurality of blocks of pixels each of which includes subpixels respectively of three colors, each of said blocks including pixels in a form of a matrix having N rows and M columns; a subpixel electrode disposed in each said pixel; a display element disposed in said each subpixel, said element operating according to a voltage on said subpixel electrode; a scanning line driving circuit for supplying a scanning signal to scanning lines arranged substantially parallel to each other; a discriminating signal line driving circuit for supplying a discriminating signal to discriminating signal lines arranged substantially vertical to said scanning lines; holding means for holding in said pixel a discriminating signal from said discriminating line; a gradation voltage line driving circuit for supplying a gradation voltage to Ma gradation voltage lines for supplying a gradation voltage to each said subpixel, said Ma gradation voltage lines being commonly connected (Ma is an integer; M≧Ma≧2) for said subpixels respectively of three colors of red, green, and blue in a direction of the column; a circuit for selecting a gradation voltage according to said discriminating signal; and a switch for applying the gradation voltage selected by said selecting circuit to said subpixel electrode, wherein said scanning lines, said discriminating signal lines, and gradation voltage lines include three layers of metallic wiring including first, second, and third metallic wiring, and a coating-type insulation film is formed between said second metallic wiring and said third metallic wiring.