Browse Prior Art Database

Color LCD Structure

IP.com Disclosure Number: IPCOM000102665D
Original Publication Date: 1990-Dec-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 28K

Publishing Venue

IBM

Related People

Matino, H: AUTHOR [+2]

Abstract

This article describes a brighter color LCD panel structure. The color filter disclosed here has transmittance for two or more elemental color spectrum which is red, green or blue. This structure is effective for a battery-operated color display which requires highly efficient transmittance. Brightness is double a conventional red, green and blue system, when the new color element system, cyan, magenta or yellow, each of which consists of green and blue, blue and red or red and green, respectively, is used.

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Color LCD Structure

       This article describes a brighter color LCD panel
structure. The color filter disclosed here has transmittance for two
or more elemental color spectrum which is red, green or blue. This
structure is effective for a battery-operated color display which
requires highly efficient transmittance. Brightness is double a
conventional red, green and blue system, when the new color element
system, cyan, magenta or yellow, each of which consists of green and
blue, blue and red or red and green, respectively, is used.

      The figure shows transmission spectrum for this color filter.
The new color elements (a), (b) and (c) are formed by chemicals as
follows:
(a) R + B :  Color index (C.I.) pigment yellow 83
(b) G + B :  C.I. pigment green 37 and blue 15
(c) B + R :  C.I. pigment blue 15, red 83 and yellow 139
C.I. is defined by The Society of Dyes and Colorists.