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1. (WO1985004505) LARGE LIQUID CRYSTAL DISPLAY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1985/004505 International Application No.: PCT/JP1985/000149
Publication Date: 10.10.1985 International Filing Date: 27.03.1985
IPC:
G02F 1/1335 (2006.01) ,G09F 9/35 (2006.01) ,G02F 1/1333 (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
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30
in which the desired character or characters are formed by combining individual elements
35
being liquid crystals
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
Applicants:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP/JP]; 1006, Oaza Kadoma Kadoma-shi Osaka-fu 571, JP (AllExceptUS)
MATSUKAWA, Hideki [JP/JP]; JP (UsOnly)
MASUYAMA, Takeshi [JP/JP]; JP (UsOnly)
HIROTA, Minoru [JP/JP]; JP (UsOnly)
WAKAHATA, Yasuo [JP/JP]; JP (UsOnly)
ITOH, Masahiro [JP/JP]; JP (UsOnly)
HARADA, Shinji [JP/JP]; JP (UsOnly)
Inventors:
MATSUKAWA, Hideki; JP
MASUYAMA, Takeshi; JP
HIROTA, Minoru; JP
WAKAHATA, Yasuo; JP
ITOH, Masahiro; JP
HARADA, Shinji; JP
Agent:
NAKAO, Toshio @; Matsushita Electric Industrial Co., Ltd. 1006, Oaza Kadoma Kadoma-shi Osaka-fu 571, JP
Priority Data:
59/6147928.03.1984JP
Title (EN) LARGE LIQUID CRYSTAL DISPLAY
(FR) AFFICHAGE A CRISTAUX LIQUIDES DE GRANDES DIMENSIONS
Abstract:
(EN) A large liquid crystal display in which many liquid crystal display elements (8) are arranged on a plane, each liquid crystal display element (8) having a liquid crystal (3) placed between transparent substrates that transmit the light emitted from sources (6) of light. The display portion of each liquid crystal display element (8) is covered with a light guide (13) which consists of one or more light guide elements (12) and which guides the rays. Seams (9) among the liquid crystal display elements (8) are also covered by the light guides (13). Namely, the screen is constituted by the light guides (13) that also cover seams (9) among the plurality of liquid crystal display elements (8). Therefore, lattice-like lines do not appear, and the brightness can be made nearly uniform on the whole screen of a large liquid crystal display, enabling a high-quality image to be formed on the whole screen.
(FR) Affichage à cristaux liquides de grandes dimensions dans lequel beaucoup d'éléments d'affichage à cristaux liquides (8) sont disposés dans un plan, chaque élément d'affichage à cristaux liquides (8) possédant des cristaux liquides (5) disposés entre des substrats transparents qui transmettent la lumière émise par des sources (6) de lumière. La partie d'affichage de chaque élément d'affichage à cristaux liquides (8) est recouverte d'un guide de lumière (13) se composant d'un ou de plusieurs éléments de guide de lumière (12) et qui guide les rayons. Des lignes de jonction (9) entre les éléments d'affichage à cristaux liquides (8) sont également recouvertes par les guides de lumière (13). L'écran est constitué par les guides de lumière (13) qui couvrent également les lignes de jonction (9) entre la pluralité d'éléments d'affichage à cristaux liquides (8). On évite ainsi l'apparition de lignes en forme de treillis et on peut obtenir une luminosité presque uniforme sur toute la surface d'un grand écran d'affichage à cristaux liquides, permettant ainsi de former une image de grande qualité sur toute la surface de l'écran.
Designated States: KR, US
European Patent Office (DE, FR, GB)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP0179913KR2019910001811*KR1019850700282