JPH02829A - 液晶表示装置 - Google Patents

液晶表示装置

Info

Publication number
JPH02829A
JPH02829A JP63301122A JP30112288A JPH02829A JP H02829 A JPH02829 A JP H02829A JP 63301122 A JP63301122 A JP 63301122A JP 30112288 A JP30112288 A JP 30112288A JP H02829 A JPH02829 A JP H02829A
Authority
JP
Japan
Prior art keywords
cell
display
liquid crystal
display cell
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63301122A
Other languages
English (en)
Inventor
Klaus Hetzel
クラウス・ヘツツエル
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of JPH02829A publication Critical patent/JPH02829A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13475—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer is doped with a pleochroic dye, e.g. GH-LC cell
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13725—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13731—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition
    • G02F1/13737—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition in liquid crystals doped with a pleochroic dye
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/09—Function characteristic transflective

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、前後に配置された２つの表示セルを１し、そ
れらの間にトランスフレクタが配置されており、前方表
示セルはゲスト・ホスト液晶であり、さらに後方表示セ
ルをその裏側から照明することができる光源と、それぞ
れ前方表示セルの画像電極の背後に同列に配置されかつ
同時制御可能な、同じ構造の後方表示セルの画像電極と
を有する液晶表示装置に関する。
〔従来の技術〕
この種の液晶表示装置において、前方表示セルだけでな
く、後方表示セルもゲスト・ホスト表示セルとして構成
することは公知である。このような構造は、液晶表示装
置の制御された画像電極の範囲と制御されていない表示
範囲との間の高いコントラストが得られず、かつ液晶表
示装置を観察する際に前方画像電極と後方画像電極との
間の視差が生じるという欠点を有する。
〔発明が解決しようとする課題〕
本発明の課題は、制御された画像電極の範囲が、それを
嘔り囲む制御されていない表示範囲に対して高いコント
ラストで表示することの可能な透過反射形（Ｔｒａｎｓ
ｆｌｅｋｚｉｖ　）　　液晶表示装置を提供することで
ある。
〔課題を解決するための手段〕
この課題は本発明により、後方表示セルが制御された画
像電極と制御されていない表示セルの表示範囲との間の
コントラスト比の高い表示セルであることにより解決さ
れる。この構成により、かすかな視角依存性ならびに高
いコントラスト比を有する、反射ならひに透過形液晶表
示装置が達成される。同時に、双方の表示セルの間の視
差も小さく保たれる。
有利に、後方表示セルはＴＮｉＮセルである。
この極めて強いコントラストの表示セルは、透過形表示
では液晶表示装置の高い総合コントラストを惹起する。
視角依存性をさらに減少するために、前方表示セルは相
遷移・ゲスト・ホスト表示セルであってもよい。これに
より同時に、反射形表示では良好なコントラストが得ら
れ、透過形表示では減少した視差が達成される。
トランスフレクタが散乱性、特に等方性散乱のトランス
フレクタである場合、この除虫じる拡散性の光散乱によ
って、後方表示セルの像はトランスフレクタの前面にわ
ずかにぼやけた輪郭で表示されるため、双方の表示セル
間の視差はさらに減少されている。
ＴＮセルを後方セルとして使用する場合、ＴＮセルの偏
光子により生成した偏光は、等方性散乱のトランスフレ
クタにより偏光解消されて不規則な散乱光になり、この
ためＴＮセルの視角依存性は十分に消去される。従って
、表示の全画像の視角依存性の影響も生じない。
〔実施例〕
添付図面には本発明の液晶表示装置の１実施例が断面図
で示されている。
図示された液晶表示装置は、前方表示セル１と後方表示
セル２とからなり、これらは前後に配置されており、か
つその間に等方性散乱のトランスフレクタ３が配置され
ている。観察者に離反する液晶表示装置の側には、透過
形表示のための光源４が配置されており、この光源の光
の進路は光＆５によって図示されている。光源４が遮断
されている場合、表示装置の表示は図示された光線６に
従って反射により行なわれる。
前方表示セル１は相遷移・ゲスト・ホス）ＦＥ示セルで
あり、この表示セルはセル空間ＩＩでそのつど前方透明
基板７上に画像電極８ｓ？よび８′を有する。
後方透明基板９のセル空間側には、全面に背面電極１０
が配置されている。基板γと基板９との間に形成された
セル空間１１は、液晶物質が充填されている。
後方表示セル２Ｆｉ、前方透明基板１２と後方透明基板
１３とを有し、それらの間が液晶物質で充填したセル空
間１４が形成されているＴＮ表示セルである。
基板１２ｓ？よび１３のセル空間１４に離反する側には
、偏光子１５が配置されておシ、前方基板１２１１ｔセ
ル空間側に画像電極１６かよぴ画像電極８および１６は
同じ構造を有しかつ前後に整列して配置されている。同
様に、画像電極８′および１６′も同じ構造を有しかつ
同様に前後に整列して配置されている。
面図である。
１．２・・・表示セル、３・・・トランスフレクタ、セ
ル空間、１２．１３・・・基板、１４・・・セル空間、
５・・・偏光子、 ６′・・・画像電極、 ７・・・ 第１図 １．２　表示セル １３．１６’　　画像電極

Claims (1)

  1. 【特許請求の範囲】 １、前後に配置された２つの表示セルを有し、それらの
    間にトランスフレクタが配置されており、前方表示セル
    はゲスト・ホスト液晶セルであり、さらに後方表示セル
    をその裏側から照明することができる光源と、それぞれ
    前方表示セルの画像電極の後方に整列して配置されかつ
    同時に制御可能な、同じ構造の後方表示セルの画像電極
    とを有する液晶表示装置において、後方表示セル（２）
    は制御された画像電極（１６、１６′）と表示セル（２
    ）の制御されていない表示範囲との間のコントラスト比
    の高い表示セルであることを特徴とする液晶表示装置。 ２、後方表示セル（２）がＴＮ表示セルである請求項１
    項記載の液晶表示装置。 ３、前方表示セル（１）が相遷移・ゲスト・ホスト表示
    セルである請求項１または２記載の液晶表示装置。 ４、トランスフレクタ（３）が光散乱性トランスフレク
    タである請求項１から３までのいずれか１項記載の液晶
    表示装置。
JP63301122A 1987-12-01 1988-11-30 液晶表示装置 Pending JPH02829A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3740647.7 1987-12-01
DE3740647A DE3740647C2 (de) 1987-12-01 1987-12-01 Flüssigkristallanzeige mit zwei hintereinander angeordneten Anzeigezellen

Publications (1)

Publication Number Publication Date
JPH02829A true JPH02829A (ja) 1990-01-05

Family

ID=6341625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63301122A Pending JPH02829A (ja) 1987-12-01 1988-11-30 液晶表示装置

Country Status (3)

Country Link
JP (1) JPH02829A (ja)
KR (1) KR890010597A (ja)
DE (1) DE3740647C2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017116683A (ja) * 2015-12-24 2017-06-29 エルジー ディスプレイ カンパニー リミテッド 液晶表示装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5283563A (en) * 1990-03-20 1994-02-01 General Electric Company Backlighting of nematic curvilinear aligned phase liquid crystal display panels
DE19906483A1 (de) * 1999-02-17 2000-09-07 Mannesmann Vdo Ag Flüssigkristallanzeige
KR100828531B1 (ko) * 2002-07-26 2008-05-13 삼성전자주식회사 액정 표시 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243614A1 (de) * 1982-11-25 1984-05-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Fluessigkristall-anzeigevorrichtung
US4637687A (en) * 1984-06-14 1987-01-20 General Electric Company Cascaded, dual cell transflective liquid crystal display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017116683A (ja) * 2015-12-24 2017-06-29 エルジー ディスプレイ カンパニー リミテッド 液晶表示装置

Also Published As

Publication number Publication date
KR890010597A (ko) 1989-08-09
DE3740647C2 (de) 1996-05-09
DE3740647A1 (de) 1989-06-15

Similar Documents

Publication Publication Date Title
US3881809A (en) Reflection system for liquid crystal displays
US6449090B1 (en) Three dimensional display viewable in both stereoscopic and autostereoscopic modes
EP0886169B1 (en) Reflective liquid crystal display device
US4684939A (en) Liquid crystal display device
EP0448303B1 (en) Liquid crystal display panels
US10884291B2 (en) Transparent display device and container
JPH02829A (ja) 液晶表示装置
JP3506418B2 (ja) 表示装置
JPH10260376A (ja) ２次元映像／３次元映像互換型表示装置
JP3082114B2 (ja) 液晶表示装置
JP4062032B2 (ja) 液晶表示装置
JP3407641B2 (ja) 液晶装置及び電子機器
CA2341391C (en) Passive matrix liquid crystal display
JP2001091896A (ja) ２次元映像／３次元映像互換型映像表示装置
JP3760675B2 (ja) 液晶装置及び電子機器
JP3379427B2 (ja) 液晶装置及び電子機器
JP3039582B2 (ja) 液晶表示装置
JPH11202785A (ja) 反射型表示装置
JP3570419B2 (ja) 液晶装置、アクティブマトリクス型装置用基板及び電子機器
KR20000005771A (ko) 액티브매트릭스형액정디스플레이
JPH0682776A (ja) 液晶表示装置
JP3134555B2 (ja) 液晶表示素子
JP2026500684A (ja) 切替可能な光フィルタ、照明装置及びスクリーン
JPH03175421A (ja) 液晶表示素子
JP3395579B2 (ja) 液晶表示素子