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1. (WO1998050818) DISPLAY DEVICE AND ELECTRONIC EQUIPMENT MADE BY USING THE SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050818 International Application No.: PCT/JP1998/002000
Publication Date: 12.11.1998 International Filing Date: 01.05.1998
IPC:
G02F 1/1335 (2006.01) ,G02F 1/13357 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
Applicants:
SEIKO EPSON CORPORATION [JP/JP]; 4-1, Nishi-shinjuku 2-chome Shinjuku-ku Tokyo 163-0811, JP (AllExceptUS)
IIJIMA, Chiyoaki [JP/JP]; JP (UsOnly)
Inventors:
IIJIMA, Chiyoaki; JP
Agent:
SUZUKI, Kisaburo ; Seiko Epson Corporation Intellectual Property Dept. 3-5, Owa 3-chome Suwa-shi Nagano-ken 392-8502, JP
Priority Data:
9/11850308.05.1997JP
9/11850408.05.1997JP
Title (EN) DISPLAY DEVICE AND ELECTRONIC EQUIPMENT MADE BY USING THE SAME
(FR) DISPOSITIF D'AFFICHAGE ET EQUIPEMENT ELECTRONIQUE FABRIQUE A PARTIR DE CELUI-CI
Abstract:
(EN) Two reflecting polarizers one of which reflects light rays in one direction of polarization and the other of which reflects light rays in the other direction of polarization are arranged on the back of a liquid crystal panel in such a manner that their transmission axes may not be aligned with each other. This arrangement permits the light rays reflected from the reflecting polarizers to be confirmed visually in both bright and dark display states, thus widening the variation of the display design of a display device.
(FR) Cette invention concerne un dispositif faisant appel à deux polariseurs réfléchissants, l'un qui va réfléchir les rayons de lumière dans un sens de polarisation tandis que l'autre va réfléchir les rayons de lumière dans le sens de polarisation opposé. Ces polariseurs sont disposés à l'arrière d'un panneau à cristaux liquides de manière à ce que leurs axes d'émission ne soient pas alignés l'un avec l'autre. Ce système permet aux rayons de lumière réfléchis par les polariseurs de se confirmer visuellement dans des modes d'affichages tant clairs que sombres, ce qui permet d'étendre les possibilités de conception d'affichage d'un dispositif d'affichage.
front page image
Designated States: JP, US
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
JP3271264