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JPS56164322A - Guest host liquid crystal display element - Google Patents

Guest host liquid crystal display element

Info

Publication number
JPS56164322A
JPS56164322A JP6793480A JP6793480A JPS56164322A JP S56164322 A JPS56164322 A JP S56164322A JP 6793480 A JP6793480 A JP 6793480A JP 6793480 A JP6793480 A JP 6793480A JP S56164322 A JPS56164322 A JP S56164322A
Authority
JP
Japan
Prior art keywords
liquid crystal
light
dichromatic pigment
pigment
reflecting plate
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
JP6793480A
Other languages
Japanese (ja)
Inventor
Hiroshi Masuda
Shoichi Ogawa
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.)
AGC Inc
Original Assignee
Asahi Glass Co 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP6793480A priority Critical patent/JPS56164322A/en
Publication of JPS56164322A publication Critical patent/JPS56164322A/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 improve the contrast without darkening the display surface by subjecting pigment-added liquid crystal molecules to inclined longitudinal orientation and by placing a special wavelength plate and a reflecting plate on the back surface of a transparent electrode. CONSTITUTION:A nematic liquid crystal 14, having a negative dielectric anisotropy, to which a dichromatic pigment 15 was added is oriented longitudinally in an inclined form to be put between transparent elecdrodes 12, 17. A 1/4 wavelength plate 23 and a reflecting plate 20 are placed on the back of a glass substrate 18 supporting this transparent electrode 17. A light having an electric field vector crossed at right angles to the direction of the long axis of dichromatic pigment molecules at the incident time, when it is reflected at a reflecting plate 20 and returns to the liquid crystal, is rotated by pi/2, after changing to a light having an electric vector with the same direction as that of the long axis of a dichromatic pigment molecule, is absorbed to the dichromatic pigment. The light which does not contribute to the light absorption of the dichromatic pigment molecules goes out as it is as a reflected light. As a result, the contrast of the display is improved without darkening the display surface.
JP6793480A 1980-05-23 1980-05-23 Guest host liquid crystal display element Pending JPS56164322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6793480A JPS56164322A (en) 1980-05-23 1980-05-23 Guest host liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6793480A JPS56164322A (en) 1980-05-23 1980-05-23 Guest host liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS56164322A true JPS56164322A (en) 1981-12-17

Family

ID=13359247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6793480A Pending JPS56164322A (en) 1980-05-23 1980-05-23 Guest host liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS56164322A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179531U (en) * 1985-04-24 1986-11-08

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108147A (en) * 1976-03-05 1977-09-10 Philips Nv Liquid crystal picture display unit
JPS53100849A (en) * 1977-02-15 1978-09-02 Citizen Watch Co Ltd Liquid crystal color display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108147A (en) * 1976-03-05 1977-09-10 Philips Nv Liquid crystal picture display unit
JPS53100849A (en) * 1977-02-15 1978-09-02 Citizen Watch Co Ltd Liquid crystal color display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179531U (en) * 1985-04-24 1986-11-08

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