JPS57133438A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS57133438A
JPS57133438A JP56019092A JP1909281A JPS57133438A JP S57133438 A JPS57133438 A JP S57133438A JP 56019092 A JP56019092 A JP 56019092A JP 1909281 A JP1909281 A JP 1909281A JP S57133438 A JPS57133438 A JP S57133438A
Authority
JP
Japan
Prior art keywords
liquid crystal
substrate
electric field
provided outside
mixture layer
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
JP56019092A
Other languages
Japanese (ja)
Inventor
Kazuhisa Toriyama
Tamihito Nakagome
Kenkichi Suzuki
Norio Aoki
Masaharu Kamiyama
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 JP56019092A priority Critical patent/JPS57133438A/en
Publication of JPS57133438A publication Critical patent/JPS57133438A/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
    • G02F1/137—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

Landscapes

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

Abstract

PURPOSE:To obtain a high-contrast display without color unevenness and leakage of the light, by sealing a nematic liquid crystal, where the molecular axis has a specific torsional orientation structure, between transparent electrode substrates. CONSTITUTION:A mixture layer 4 where a multicolor dye and an optically active substance (such as cholesteryl chloride) are mixed in the nematic liquid crystal showing a positive dielectric anisotropy is sealed between transparent electrode substrates 2 and 3 which have transparent conductive films 2b and 3b formed on faces facing to each other of two parallel plane-plate transparent substrates 2a and 3a and are subjected to the transversal orientation treatment, and liquid crystal molecules 1 constituting the mixture layer 4 are turned gradually by 270 deg. from the substrate 2 toward the substrate 3 when an electric field is not applied. A linear polarizer 6 having the polarization axis parallel to the molecular axis of liquid crystal molecule 1 which is in contact with the substrate 3 is provided outside the substrate 3, and a light source 7 is provided outside of the linear polarizer 6. Since the light incident to the liquid crystal cell i s absorbed by dye molecule with sufficiently high efficiency when the electric field is not applied, a uniform color display without color unevenness is possible.
JP56019092A 1981-02-13 1981-02-13 Liquid crystal display device Pending JPS57133438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019092A JPS57133438A (en) 1981-02-13 1981-02-13 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019092A JPS57133438A (en) 1981-02-13 1981-02-13 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS57133438A true JPS57133438A (en) 1982-08-18

Family

ID=11989818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019092A Pending JPS57133438A (en) 1981-02-13 1981-02-13 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS57133438A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131216A2 (en) * 1983-07-12 1985-01-16 BBC Brown Boveri AG Liquid crystal display
US4596446A (en) * 1982-06-29 1986-06-24 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal devices with particular cholesteric pitch-cell thickness ratio
US6693689B1 (en) * 1999-03-31 2004-02-17 Lg Philips Lcd Co., Ltd. Reflective liquid crystal display device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596446A (en) * 1982-06-29 1986-06-24 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal devices with particular cholesteric pitch-cell thickness ratio
EP0131216A2 (en) * 1983-07-12 1985-01-16 BBC Brown Boveri AG Liquid crystal display
FR2549268A1 (en) * 1983-07-12 1985-01-18 Bbc Brown Boveri & Cie LIQUID CRYSTAL DISPLAY
DE3423993A1 (en) * 1983-07-12 1985-01-24 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau LIQUID CRYSTAL DISPLAY
US4634229A (en) * 1983-07-12 1987-01-06 Bbc Brown, Boveri & Company Limited Liquid crystal display
US4697884A (en) * 1983-07-12 1987-10-06 Bbc Brown, Boveri & Company, Limited Liquid crystal display having degree of twist and thickness for improved multiplexing
US6693689B1 (en) * 1999-03-31 2004-02-17 Lg Philips Lcd Co., Ltd. Reflective liquid crystal display device
US7310125B2 (en) * 1999-03-31 2007-12-18 Lg.Philips Co., Ltd. Reflective liquid crystal display

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