JPS5784435A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS5784435A
JPS5784435A JP16115380A JP16115380A JPS5784435A JP S5784435 A JPS5784435 A JP S5784435A JP 16115380 A JP16115380 A JP 16115380A JP 16115380 A JP16115380 A JP 16115380A JP S5784435 A JPS5784435 A JP S5784435A
Authority
JP
Japan
Prior art keywords
liq
crystal
dye
light
voltage
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
JP16115380A
Other languages
Japanese (ja)
Inventor
Hisashi Aoki
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP16115380A priority Critical patent/JPS5784435A/en
Publication of JPS5784435A publication Critical patent/JPS5784435A/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
    • G02F1/13731—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

Landscapes

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

Abstract

PURPOSE:To enable the exchange of the display color in 2 ways by regulating the specific pitch of a chiral nematic liq. crystal contg. a dichromatic dye to half or below of the gap between substrates and by applying 2 kinds of driving voltages different from each other in value. CONSTITUTION:Since horizontally orienting films 5, 6 made of polyimide resin or the like have been rubbed, a chiral nematic liq. crystal is in planar arrangement. The specific pitch of the liq. crystal is 1/2-1/12 of the gap between electrode substrates. In a state with no voltage the liq. crystal is in planar arrangement, so light oscillating in any direction is absorbed by any of a dichromatic dye 8, and the whole region of the display surface is in a chromatic state. When a voltage 10 is applied, the planar arrangement is converted into focal conic arrangement, light is diffusely reflected and is almost independent of the absorbing effect of the dye, and the display surface becomes a cloudy state. When a voltage 11 is applied, homeotropic arrangement is provided, and light is hardly absorbed in the dye and passes through the liq. crystal layer. Thus, a dichromatic display having white and the color of the light source is enabled.
JP16115380A 1980-11-14 1980-11-14 Liquid crystal display device Pending JPS5784435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16115380A JPS5784435A (en) 1980-11-14 1980-11-14 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16115380A JPS5784435A (en) 1980-11-14 1980-11-14 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS5784435A true JPS5784435A (en) 1982-05-26

Family

ID=15729595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16115380A Pending JPS5784435A (en) 1980-11-14 1980-11-14 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5784435A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05346584A (en) * 1983-06-06 1993-12-27 Hitachi Ltd Liquid crystal optical modulating element
JP2007219413A (en) * 2006-02-20 2007-08-30 Fujifilm Corp Driving method of liquid crystal dimming device and liquid crystal dimming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05346584A (en) * 1983-06-06 1993-12-27 Hitachi Ltd Liquid crystal optical modulating element
JP2007219413A (en) * 2006-02-20 2007-08-30 Fujifilm Corp Driving method of liquid crystal dimming device and liquid crystal dimming device

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