JPS56140320A - Two-layer type liquid crystal color display device - Google Patents

Two-layer type liquid crystal color display device

Info

Publication number
JPS56140320A
JPS56140320A JP4350380A JP4350380A JPS56140320A JP S56140320 A JPS56140320 A JP S56140320A JP 4350380 A JP4350380 A JP 4350380A JP 4350380 A JP4350380 A JP 4350380A JP S56140320 A JPS56140320 A JP S56140320A
Authority
JP
Japan
Prior art keywords
liq
crystal
electric field
orienting
perpendicularly
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
JP4350380A
Other languages
Japanese (ja)
Inventor
Masato Isogai
Hidetoshi Abe
Fumio Nakano
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4350380A priority Critical patent/JPS56140320A/en
Publication of JPS56140320A publication Critical patent/JPS56140320A/en
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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To obtain a bright high-contrast display by orienting liq. crystal molecules perpendicularly to the surface of each substrate and orienting liq. crystal molecules in parallel with the surface so that the orientations of the molecules of the 1st and 2nd layers meet at right angles when an electric field is applied. CONSTITUTION:Perpendicularly orienting films 31, 32, 33, 34 are formed on glass substrates 11, 12, 13 having transparent electrodes 21, 22, 23, 24, respectively, and after rubbing the surfaces of films 31-34 so that preferential orientation is carried out in the lateral direction in the 1st liq. crystal layer and in the direction perpendicular to this paper in the 2nd liq. crystal layer, a mixture of nematic liq. crystal 4 with negative dielectric anisotropy and dichromatic dye 5 is sealed among substrates 11-13. In a part with no electric field applied crystal 4 and dye 5 orient perpendicularly and assume transparency. In a part with an electric field applied they orient parallelly and the orientations of the 1st and 2nd layers meet at right angles. Thus, a bright high-contract display is obtd. since no polarizing plate is contained. A dichromatic N type nematic liq. crystal may be used.
JP4350380A 1980-04-04 1980-04-04 Two-layer type liquid crystal color display device Pending JPS56140320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4350380A JPS56140320A (en) 1980-04-04 1980-04-04 Two-layer type liquid crystal color display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4350380A JPS56140320A (en) 1980-04-04 1980-04-04 Two-layer type liquid crystal color display device

Publications (1)

Publication Number Publication Date
JPS56140320A true JPS56140320A (en) 1981-11-02

Family

ID=12665516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4350380A Pending JPS56140320A (en) 1980-04-04 1980-04-04 Two-layer type liquid crystal color display device

Country Status (1)

Country Link
JP (1) JPS56140320A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130425U (en) * 1984-02-10 1985-08-31 スタンレー電気株式会社 liquid crystal display device
JPS60140925U (en) * 1984-02-27 1985-09-18 スタンレー電気株式会社 liquid crystal display device
JPS6113226A (en) * 1984-06-29 1986-01-21 Stanley Electric Co Ltd Liquid crystal display device
JPS62186113U (en) * 1986-05-16 1987-11-26
JPH02109018A (en) * 1988-10-18 1990-04-20 Fujitsu Ltd Liquid crystal display device
US4966441A (en) * 1989-03-28 1990-10-30 In Focus Systems, Inc. Hybrid color display system
US5050965A (en) * 1989-09-01 1991-09-24 In Focus Systems, Inc. Color display using supertwisted nematic liquid crystal material
US5089810A (en) * 1990-04-09 1992-02-18 Computer Accessories Corporation Stacked display panel construction and method of making same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130425U (en) * 1984-02-10 1985-08-31 スタンレー電気株式会社 liquid crystal display device
JPS60140925U (en) * 1984-02-27 1985-09-18 スタンレー電気株式会社 liquid crystal display device
JPS6113226A (en) * 1984-06-29 1986-01-21 Stanley Electric Co Ltd Liquid crystal display device
JPS62186113U (en) * 1986-05-16 1987-11-26
JPH02109018A (en) * 1988-10-18 1990-04-20 Fujitsu Ltd Liquid crystal display device
JP2658282B2 (en) * 1988-10-18 1997-09-30 富士通株式会社 Liquid crystal display
US4966441A (en) * 1989-03-28 1990-10-30 In Focus Systems, Inc. Hybrid color display system
US5050965A (en) * 1989-09-01 1991-09-24 In Focus Systems, Inc. Color display using supertwisted nematic liquid crystal material
US5089810A (en) * 1990-04-09 1992-02-18 Computer Accessories Corporation Stacked display panel construction and method of making same

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