Patent ID: 6825823
Filing Date: 2004-11-30
Classification: G02F,G09G,H04N

Abstract:
An image display system for producing color images, comprising:a self-luminous image display for time-divisionally displaying monochrome images corresponding to three primary colors, said self-luminous image display having a feature of displaying images by converting electric signals corresponding to image data into optical data by a control of switching between a light emitting state and non light emitting state; a color shutter for time-divisionally switching a plurality of colors to be displayed, provided in front of a luminous surface of said self-luminous image display, wherein said color shutter comprises: liquid crystal cells arranged on a whole display region, for switching optically on the basis of inversions between positive and negative polarities; and transparent electrodes formed on said whole display region and dividing said liquid crystal cells into at least two display parts; wherein said color shutter is capable of optically setting display colors for a plurality of said display parts by said transparent electrodes and displays a different color image on each of said display parts in an optional time in a driving condition, and wherein said self-luminous image display is a monochrome luminescent display for displaying a monochrome image by a line scanning, said monochrome luminescent display comprising at least one of a monochrome CRT, a monochrome EL luminescent display element, an FED and a plasma display element, which have a frequency F necessary to display all of screens corresponding to the three primary colors, and said monochrome luminescent display having a phosphor having a 1/10 afterglow time &tgr; meeting the following relationship: &tgr;&lE;{(1/4âˆ’1/3n)/NFâˆ’T}/2 assuming that said color shutter has n divided display regions, a period for repeatedly displaying three primary colors for a field period 1/F derived from said frequency F being N, and a response speed of said crystal color shutter being T.