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1. WO2020110977 - SET OF POLARIZING PLATES

Publication Number WO/2020/110977
Publication Date 04.06.2020
International Application No. PCT/JP2019/045914
International Filing Date 25.11.2019
IPC
G02F 1/1335 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
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
G02B 5/30 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
G02F 1/13363 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
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13363Birefringent elements, e.g. for optical compensation
CPC
G02B 5/30
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
G02F 1/1335
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
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
G02F 1/13363
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
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13363Birefringent elements, e.g. for optical compensation
Applicants
  • 日東電工株式会社 NITTO DENKO CORPORATION [JP]/[JP]
Inventors
  • 新地 真規子 SHINCHI Makiko
Agents
  • 籾井 孝文 MOMII Takafumi
Priority Data
2018-22045026.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SET OF POLARIZING PLATES
(FR) ENSEMBLE DE PLAQUES DE POLARISATION
(JA) 偏光板のセット
Abstract
(EN)
The purpose of the present invention is to provide a set of polarizing plates capable of minimizing warpage of a liquid crystal panel in a high temperature, high humidity environment. A set of polarizing plates according to the present invention comprises: a first polarizing plate (21) provided on one surface of a liquid crystal cell (10) and having a thickness between 200 μm and 300 μm, inclusive; and a second polarizing plate (22) provided on the other surface of the liquid crystal cell and having a thickness of 150 μm or less. The first polarizing plate includes: a phase difference layer (32) having a thickness of 100 μm or greater; a polarizer (31) provided on one surface of the phase difference layer and having a thickness of 10 μm or less; and an adhesive layer (33) provided on the other surface of the phase difference layer. The first polarizing plate is laminated on the liquid crystal cell via the adhesive layer.
(FR)
L'objectif de la présente invention est de fournir un ensemble de plaques de polarisation permettant de réduire au minimum le gauchissement d'un panneau à cristaux liquides dans un environnement à haute température et à humidité élevée. Un ensemble de plaques de polarisation selon la présente invention comprend une première plaque de polarisation (21) située sur une surface d'une cellule à cristaux liquides (10) et ayant une épaisseur comprise entre 200 μm et 300 µm ; et une seconde plaque de polarisation (22) située sur l'autre surface de la cellule à cristaux liquides et ayant une épaisseur de 150 µm ou moins. La première plaque de polarisation comprend une couche de différence de phase (32) ayant une épaisseur de 100 µm ou plus ; un polariseur (31) situé sur une surface de la couche de différence de phase et ayant une épaisseur de 10 µm ou moins ; et une couche adhésive (33) située sur l'autre surface de la couche de différence de phase. La première plaque de polarisation est stratifiée sur la cellule à cristaux liquides par l'intermédiaire de la couche adhésive.
(JA)
本発明の目的は、液晶パネルの高温高湿環境下における反りが抑制された偏光板のセットを提供することにある。本発明の偏光板のセットは、液晶セル(10)の一方の面に配置される厚みが200μm以上300μm以下である第1の偏光板(21)と、該液晶セルの他方の面に配置される厚みが150μm以下の第2の偏光板(22)と、からなる。該第1の偏光板が厚み100μm以上の位相差層(32)と、該位相差層の一方の面に配置された厚み10μm以下の偏光子(31)と、該位相差層の他方の面に配置された粘着剤層(33)とを有する。該第1の偏光板が該粘着剤層を介して液晶セルに積層されている。
Also published as
Latest bibliographic data on file with the International Bureau