Patent ID: 6437769
Filing Date: 2002-08-20
Classification: G02F,G09G,H01L

Abstract:
A display apparatus comprising:a planar optical modulation panel; and a surface light source arranged on the back of the planar optical modulation panel, and having at least a first luminescent region including a luminescent material emitting light with a first color and a second luminescent region including a luminescent material emitting light with a second color different from the first color in a surface substantially parallel to a surface of the planar optical modulation panel, one scanning period of a color image to be displayed being divided into the number of luminescent colors of the surface light source, each of the luminescent regions being allowed to emit light in accordance with each of the divided periods, brightness information of the luminescent color of the emitted light being formed by the planar optical modulation panel in synchronism with the periods, and the light of each color being optically modulated to perform a color display; the surface light source having the first luminescent region and the second luminescent region with a structure in which a plurality of luminescent materials having different luminescent colors are arranged as a periodic alignment of a specific pattern within one plane on a substrate having a transparent first electrode formed thereon, a second electrode being formed on a luminescent layer including each of the luminescent materials and including a voltage source for applying a voltage sufficient to emit light between the selected first and second electrodes in a selected period; the plurality of organic luminescent layers being formed in the shape of stripes and in a plurality of repetition units of a set of colors, and a pitch p of each of the color stripe sets and a distance d between a light shutter surface of the planar optical modulation panel and the luminescent layers having a relationship expressed by p/d<1.1.