JPH02829A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 23
- 230000007704 transition Effects 0.000 claims description 3
- 238000000149 argon plasma sintering Methods 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 claims 12
- 210000002858 crystal cell Anatomy 0.000 claims 2
- 239000000758 substrate Substances 0.000 abstract description 15
- 239000000126 substance Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
Abstract
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。[Detailed Description of the Invention] [Industrial Application Field] The present invention comprises two display cells placed in front and behind each other, a transflector is placed between them, and the front display cell is used as a guest host. A light source that is a liquid crystal and is capable of illuminating the rear display cell from the back side thereof, and an image electrode of the rear display cell having the same structure, which is arranged in the same row behind the image electrode of the front display cell and can be controlled simultaneously. The present invention relates to a liquid crystal display device having:
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。In liquid crystal display devices of this type, it is known to configure not only the front display cells but also the rear display cells as guest-host display cells. Such a structure does not provide high contrast between the controlled image electrode range and the uncontrolled display range of the liquid crystal display, and when viewing the liquid crystal display, the front image electrode and the back image It has the disadvantage that parallax occurs between the electrodes.
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。The object of the present invention is to provide a transreflective display in which a controlled area of the image electrode can be displayed with high contrast to the surrounding uncontrolled display area.
flekziv) to provide a liquid crystal display device.
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。This problem is solved according to the invention in that the rear display cell is a display cell with a high contrast ratio between the controlled image electrode and the display area of the uncontrolled display cell. With this configuration, a reflective-transmissive liquid crystal display device with a weak viewing angle dependence and a high contrast ratio is achieved. At the same time, the parallax between both display cells is also kept small.
有利に、後方表示セルはＴＮｉＮセルである。Advantageously, the rear display cell is a TNiN cell.
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。This extremely high contrast display cell gives rise to a high overall contrast of the liquid crystal display in transmissive display.
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。To further reduce viewing angle dependence, the front display cell may be a phase transition/guest/host display cell. This simultaneously results in good contrast for reflective displays and reduced parallax for transmissive displays.
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。If the transflector is a scattering, especially isotropic, scattering transflector, this extremely diffuse light scattering causes the image of the rear viewing cell to appear as a slightly blurred outline in front of the transflector. Therefore, the parallax between both display cells is further reduced.
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。When a TN cell is used as a rear cell, the polarized light generated by the polarizer of the TN cell is depolarized by the isotropic scattering transflector and becomes irregularly scattered light, so the viewing angle dependence of the TN cell is fully erased. Therefore, the effect of viewing angle dependence of all displayed images does not occur.
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。The accompanying drawings show a cross-sectional view of one embodiment of the liquid crystal display device of the present invention.
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。The illustrated liquid crystal display device consists of a front display cell 1 and a rear display cell 2, which are arranged in front and behind each other, and an isotropic scattering transflector 3 is arranged between them. A light source 4 for transmissive display is arranged on the side of the liquid crystal display device facing away from the viewer, and the path of light from this light source is illustrated by light &5. If the light source 4 is switched off, the display of the display device takes place by reflection according to the light beam 6 shown.
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。The front display cell 1 is a phase transition/guest/phos()FE display cell, and this display cell has an image electrode 8s? on the front transparent substrate 7 in each cell space II. and 8'.
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。A back electrode 10 is provided on the entire surface of the rear transparent substrate 9 on the cell space side.
is located. A cell space 11 formed between the substrate γ and the substrate 9 is filled with a liquid crystal material.
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。The rear display cell 2Fi is a TN display cell having a front transparent substrate 12 and a rear transparent substrate 13, with a cell space 14 filled with a liquid crystal substance formed between them.
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。Board 12s? A polarizer 15 is disposed on the side facing away from the cell space 14 of the front substrate 1211t and 13, and an image electrode 16 is disposed on the front substrate 1211t side of the cell space. It is arranged as follows. Similarly, the image electrodes 8' and 16' have the same structure and are similarly arranged one behind the other.
面図である。It is a front view.
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1.2...Display cell, 3...Transflector, cell space, 12.13...Substrate, 14...Cell space,
5... Polarizer, 6'... Image electrode, 7... Figure 1 1.2 Display cell 13.16' Image electrode
Claims (1)
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。[Claims] 1. It has two display cells arranged in front and behind each other, a transflector is arranged between them, the front display cell is a guest-host liquid crystal cell, and the rear display cell is further arranged as a guest-host liquid crystal cell. In a liquid crystal display device having a light source that can be illuminated from the rear side thereof and an image electrode of the rear display cell of the same structure, each arranged in alignment behind the image electrode of the front display cell and controllable at the same time, Display cell (2)
is a controlled image electrode (16, 16') and a display cell (2
) A liquid crystal display device characterized in that it is a display cell with a high contrast ratio between an uncontrolled display range and an uncontrolled display range. 2.Claim 1, wherein the rear display cell (2) is a TN display cell.
The liquid crystal display device described in Section 1. 3. The liquid crystal display device according to claim 1 or 2, wherein the front display cell (1) is a phase transition/guest/host display cell. 4. The liquid crystal display device according to claim 1, wherein the transflector (3) is a light-scattering transflector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3740647A DE3740647C2 (en) | 1987-12-01 | 1987-12-01 | Liquid crystal display with two display cells arranged one behind the other |
| DE3740647.7 | 1987-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02829A true JPH02829A (en) | 1990-01-05 |
Family
ID=6341625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63301122A Pending JPH02829A (en) | 1987-12-01 | 1988-11-30 | Liquid crystal display device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH02829A (en) |
| KR (1) | KR890010597A (en) |
| DE (1) | DE3740647C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017116683A (en) * | 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 | Liquid crystal display device |
Families Citing this family (3)
| 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 (en) * | 1999-02-17 | 2000-09-07 | Mannesmann Vdo Ag | Liquid crystal display |
| KR100828531B1 (en) * | 2002-07-26 | 2008-05-13 | 삼성전자주식회사 | Liquid crystal display |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3243614A1 (en) * | 1982-11-25 | 1984-05-30 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Liquid crystal display device |
| US4637687A (en) * | 1984-06-14 | 1987-01-20 | General Electric Company | Cascaded, dual cell transflective liquid crystal display |
-
1987
- 1987-12-01 DE DE3740647A patent/DE3740647C2/en not_active Revoked
-
1988
- 1988-11-30 JP JP63301122A patent/JPH02829A/en active Pending
- 1988-12-01 KR KR1019880015990A patent/KR890010597A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017116683A (en) * | 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 | Liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3740647C2 (en) | 1996-05-09 |
| DE3740647A1 (en) | 1989-06-15 |
| KR890010597A (en) | 1989-08-09 |
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