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1. WO2015019997 - 光学応答を改善する方法及びそれを用いた液晶表示素子

公開番号 WO/2015/019997
公開日 12.02.2015
国際出願番号 PCT/JP2014/070468
国際出願日 04.08.2014
IPC
G02F 1/13363 2006.01
G物理学
02光学
F光の強度,色,位相,偏光または方向の制御,例.スイッチング,ゲーテイング,変調または復調のための装置または配置の媒体の光学的性質の変化により,光学的作用が変化する装置または配置;そのための技法または手順;周波数変換;非線形光学;光学的論理素子;光学的アナログ/デジタル変換器
1独立の光源から到達する光の強度,色,位相,偏光または方向の制御のための装置または配置,例.スィッチング,ゲーテイングまたは変調;非線形光学
01強度,位相,偏光または色の制御のためのもの
13液晶に基づいたもの,例.単一の液晶表示セル
133構造配置;液晶セルの作動;回路配置
1333構造配置
1335セルと光学部材,例.偏光子または反射鏡,との構造的組合せ
13363複屈折素子との組合わせ,例.光学補償のためのもの
G02F 1/133 2006.01
G物理学
02光学
F光の強度,色,位相,偏光または方向の制御,例.スイッチング,ゲーテイング,変調または復調のための装置または配置の媒体の光学的性質の変化により,光学的作用が変化する装置または配置;そのための技法または手順;周波数変換;非線形光学;光学的論理素子;光学的アナログ/デジタル変換器
1独立の光源から到達する光の強度,色,位相,偏光または方向の制御のための装置または配置,例.スィッチング,ゲーテイングまたは変調;非線形光学
01強度,位相,偏光または色の制御のためのもの
13液晶に基づいたもの,例.単一の液晶表示セル
133構造配置;液晶セルの作動;回路配置
CPC
G02F 1/133528
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
133528Polarisers
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
G02F 1/133711
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
1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
133711by organic films, e.g. polymeric films
G02F 1/134309
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
1343Electrodes
134309characterised by their geometrical arrangement
G02F 2001/133531
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
133528Polarisers
133531Special arrangement of polariser or analyser axes
G02F 2001/133562
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
13356Particular location of the optical element
133562on the viewer side
出願人
  • 学校法人東京理科大学 TOKYO UNIVERSITY OF SCIENCE FOUNDATION [JP/JP]; 東京都新宿区神楽坂一丁目3番地 1-3, Kagurazaka, Shinjuku-ku, Tokyo 1628601, JP
  • DIC株式会社 DIC CORPORATION [JP/JP]; 東京都板橋区坂下3丁目35番58号 35-58, Sakashita 3-chome, Itabashi-ku, Tokyo 1748520, JP
発明者
  • 小林 駿介 KOBAYASHI Shunsuke; JP
  • 竹内 清文 TAKEUCHI Kiyofumi; JP
  • 金親 昌和 KANEOYA Masakazu; JP
代理人
  • 志賀 正武 SHIGA Masatake; JP
優先権情報
2013-16562008.08.2013JP
公開言語 (言語コード) 日本語 (JA)
出願言語 (言語コード) 日本語 (JA)
指定国 (国コード)
発明の名称
(EN) METHOD FOR IMPROVING OPTICAL RESPONSE AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME
(FR) PROCÉDÉ POUR AMÉLIORER LA RÉPONSE OPTIQUE ET DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES METTANT EN ŒUVRE UN TEL PROCÉDÉ
(JA) 光学応答を改善する方法及びそれを用いた液晶表示素子
要約
(EN)
The present invention provides a method for improving optical response with respect to temporal changes in the transmitted light amount of a liquid crystal display element. In the method, the optical response when dropping (turning off) from a voltage (V1) to a voltage (V2) having a high-low relationship of V1 > V2 is improved in a liquid crystal display element (1) that is provided with a liquid crystal cell (2) that comprises a liquid crystal layer, a first polarizer plate (3), a second polarizer plate (4), and an optical compensation plate (5) by performing optical design of the phase difference of the liquid crystal layer and the phase difference of the optical compensation plate (5) so that the formula (1) (| ∂Ι2 / ∂t | > | ∂Ι1 / ∂t |) is satisfied when the differential coefficient with respect to time (t) of a transmitted light amount (I1) when a drive voltage drops and the arrangement of the optical compensation plate (5) is omitted is represented by (∂Ι1 / ∂t) and the differential coefficient with respect to time (t) of the transmitted light amount (I2) when the drive voltage drops and the optical compensation plate (5) is positioned is represented by (∂Ι2 / ∂t).
(FR)
La présente invention concerne un procédé pour améliorer la réponse optique par rapport aux variations dans le temps de la quantité de lumière émise par un élément à cristaux liquides. Selon le procédé, la réponse optique lors de la chute (mise hors tension) depuis une tension (V1) jusqu'à une tension (V2) ayant une relation haute-basse de V1 > V2 est améliorée dans un élément à cristaux liquides (1) qui est équipé d'une cellule à cristaux liquides (2), comprenant une couche de cristaux liquides, une première lame polarisante (3), une seconde lame polarisante (4) et une lame de compensation optique (5), par la réalisation d'un modèle optique du déphasage de la couche de cristaux liquides et du déphasage introduit par la lame de compensation optique (5) de sorte que la formule (1) (| ∂Ι2 / ∂t | > | ∂Ι1 / ∂t |) est satisfaite si la dérivée par rapport au temps (t) d'une quantité de lumière émise (I1), lorsque la tension de commande chute et le montage de la lame de compensation optique (5) est omis, est représentée par (∂Ι1 / ∂t) et si la dérivée par rapport au temps (t) de la quantité de lumière émise (I2) lorsque la tension de commande chute et la lame de compensation optique (5) est mise en place est représentée par (∂Ι2 / ∂t).
(JA)
本発明は、液晶表示素子の透過光量の時間変化に対する光学応答を改善する方法を提供する。本発明の方法においては、液晶層を有する液晶セル2と、第1の偏光板3及び第2の偏光板4と、光学補償板5とを備える液晶表示素子1において、光学補償板5の配置を省略した場合の駆動電圧の立下り時の透過光量Ιの時間tに対する微分係数を∂Ι/∂tとし、光学補償板5が配置された場合の駆動電圧の立下り時の透過光量Ιの時間tに対する微分係数を∂Ι/∂tとしたときに、下記式(1): |∂Ι/∂t|>|∂Ι/∂t| …(1) の関係を満足するように、液晶層の位相差と光学補償板5の位相差との光学設計を行うことにより、高低関係がV1>V2である電圧V1から電圧V2への立下り(オフ)時の光学応答を改善する。
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