JPS57188025A - Liquid crystal color display element - Google Patents

Liquid crystal color display element

Info

Publication number
JPS57188025A
JPS57188025A JP7321681A JP7321681A JPS57188025A JP S57188025 A JPS57188025 A JP S57188025A JP 7321681 A JP7321681 A JP 7321681A JP 7321681 A JP7321681 A JP 7321681A JP S57188025 A JPS57188025 A JP S57188025A
Authority
JP
Japan
Prior art keywords
liquid crystal
polychromatic
value width
half value
extremely large
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
JP7321681A
Other languages
Japanese (ja)
Inventor
Toshihiko Ueno
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7321681A priority Critical patent/JPS57188025A/en
Publication of JPS57188025A publication Critical patent/JPS57188025A/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)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE:To obtain a display having a high contrast and excellent visibility, by obtaining a guest-host liquid crystal layer by mixing plural polychromatic dyestuffs having a slight difference among the extremely large wavelengths absorbed to a visible region in a proper mixing raio. CONSTITUTION:An equal weight mixture 10 of a polychromatic dyestuff G162 (NIPPON KANKO SHIKISO KENKYUJO) of 8.7 dichromatic ratio, 554nm aborbed extermely large wavelength and 120nm half value width and a polychromatic dyestuff G165 (NIPPON KANKO SHIKISO KENYUJO) of 8.7 dichromatic ratio, 592nm absorbed extremely large wavelength and 120nm half value width are added to a nematic liquid crystal 9 having the positive dielectric anisotropy in about 0.6wt% to liquid crystal material 8. A polarizing plate 11 is set at the front of a display device, and horizontal or vertical orientated film 3 or 5 is formed on the transparent electrodes 2 and 6 of the glass bustrates 1 and 7, respectively. In such a way, an absorption spectrum of a wide 202nm half value width (shown in the above-mentioned example) is secured by mixing the >=2 types of polychromatic dyestuffs having absorbed extremely large wavelengths approximate to each other. Thus a high-contrast display is obtained.
JP7321681A 1981-05-15 1981-05-15 Liquid crystal color display element Pending JPS57188025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7321681A JPS57188025A (en) 1981-05-15 1981-05-15 Liquid crystal color display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7321681A JPS57188025A (en) 1981-05-15 1981-05-15 Liquid crystal color display element

Publications (1)

Publication Number Publication Date
JPS57188025A true JPS57188025A (en) 1982-11-18

Family

ID=13511741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7321681A Pending JPS57188025A (en) 1981-05-15 1981-05-15 Liquid crystal color display element

Country Status (1)

Country Link
JP (1) JPS57188025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228472A1 (en) * 1985-07-02 1987-07-15 Sel Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630484A (en) * 1979-08-22 1981-03-27 Hitachi Ltd Method of color liquid crystal display

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630484A (en) * 1979-08-22 1981-03-27 Hitachi Ltd Method of color liquid crystal display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228472A1 (en) * 1985-07-02 1987-07-15 Sel Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device

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