Patent ID: 7334929

Claim:
A method of producing a multicolor pixel sheet having a black matrix, the method comprising the steps of: preparing a pixel sheet in which pixels of different colors are formed with a gap therebetween on a light-transmitting sheetlike substrate, each pixel composed of a coloring layer; covering upper surfaces of the pixels, the gap between the pixels, and an outer periphery defined by the outermost pixels with a photosensitive black resin layer composed of a photosensitive resin composition; exposing the pixel sheet to light from the side of the substrate opposite to the side disposed with the photosensitive black resin layer, to cure at least a lower portion of the photosensitive black resin layer at the gap between the pixels and at the outer periphery defined by the outermost pixels; exposing, via a photo mask, the pixel sheet to light from the side of the substrate disposed with the photosensitive black resin layer, to cure the photosensitive black resin layer at a part of the gap between the pixels and the outer periphery defined by the outermost pixels; developing the exposed pixel sheet to remove uncured portions of the photosensitive black resin layer in a first development step; developing the obtained pixel sheet from the first development step to reduce film thickness of the black resin layer at the gap between the pixels and the outer periphery defined by the outermost pixels in a second development step; and heating the pixel sheet having the developed black resin layer to further cure the black resin layer.