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1. WO2000041032 - LCD DEVICE AND METHOD OF MANUFACTURE THEREOF

Publication Number WO/2000/041032
Publication Date 13.07.2000
International Application No. PCT/JP2000/000049
International Filing Date 07.01.2000
IPC
G02F 1/1334 2006.01
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1334based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
G02F 1/1339 2006.01
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1339Gaskets; Spacers; Sealing of cells
G02F 1/1341 2006.01
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1341Filling or closing of cells
CPC
G02F 1/1334
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1334based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
G02F 1/1339
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1339Gaskets; Spacers; Sealing of cells
G02F 1/1341
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1341Filling or closing of cells
Applicants
  • CITIZEN WATCH CO., LTD. [JP/JP]; 1-1, Nishi-Shinjuku 2-chome Shinjuku-ku Tokyo 163-0428, JP (AllExceptUS)
  • HOSHINO, Koichi [JP/JP]; JP (UsOnly)
Inventors
  • HOSHINO, Koichi; JP
Agents
  • OSAWA, Takashi; Ikebukur White House Building Room 818 20-2, Higashi Ikebukuro 1-chome Toshima-ku Tokyo 170-0013, JP
Priority Data
11/156307.01.1999JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LCD DEVICE AND METHOD OF MANUFACTURE THEREOF
(FR) DISPOSITIF D'AFFICHAGE A CRISTAUX LIQUIDES ET PROCEDE DE FABRICATION DE CE DISPOSITIF
Abstract
(EN)
An LCD device (20) includes a liquid-crystal layer (21) consisting of polymer-dispersed liquid crystal or polymer network liquid crystal enclosed in a gap between two transparent substrates (1, 2) joined by a sealant (3). An injection hole (5) is provided in one side (3a) of the sealant (3) between the two substrates (1, 2). Barriers (16) are provided near the ends of the side in order to stop liquid crystal from entering terminal areas (14) when the liquid crystal is charged in the gap through the injection hole (5). The adhesion of at least one of the two substrates (1, 2) to the barrier (16) is weaker than the adhesion of the sealant (3) to the substrate. As a result, the terminal areas (14) are shielded from liquid crystal, and damage is prevented when the substrates (1, 2) are cut, resulting in increased production yield.
(FR)
Cette invention concerne un dispositif d'affichage à cristaux liquides (20) comprenant une couche de cristaux liquides (21) qui se compose d'un cristal liquide dispersé dans un polymère ou d'un cristal liquide dans un réseau polymère, et qui est enfermée dans un espace défini par deux substrats transparents (1, 2) joints par un matériau d'étanchéité (3). Un trou d'injection (5) est prévu dans un côté (3a) du matériau d'étanchéité (3) entre les deux substrats (1, 2). Des barrières (16) sont prévues à proximité des extrémités du côté afin d'empêcher le cristal liquide de pénétrer dans les zones des bornes (14) lorsque ledit cristal liquide est introduit dans l'espace par le trou d'injection (5). L'adhérence de l'un au moins des deux substrats (1, 2) à la barrière (16) est moindre que l'adhérence du matériau d'étanchéité (3) au substrat. Les zones des bornes (14) sont ainsi protégées du cristal liquide, ce qui permet d'éviter tout dommage lors de la découpe des substrats (1, 2) et d'accroître ainsi le rythme de production.
Latest bibliographic data on file with the International Bureau