JPS5396863A - Guestthost lc display - Google Patents

Guestthost lc display

Info

Publication number
JPS5396863A
JPS5396863A JP14870277A JP14870277A JPS5396863A JP S5396863 A JPS5396863 A JP S5396863A JP 14870277 A JP14870277 A JP 14870277A JP 14870277 A JP14870277 A JP 14870277A JP S5396863 A JPS5396863 A JP S5396863A
Authority
JP
Japan
Prior art keywords
guest
host liquid
crystal display
display
cell
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
JP14870277A
Other languages
Japanese (ja)
Inventor
Kaufuman Mainorufu
Eru Kumetsu Aran
Jiee Shiefuaa Terii
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Publication of JPS5396863A publication Critical patent/JPS5396863A/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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0047—Details electrical, e.g. selection or application of the operating voltage

Landscapes

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

Abstract

An electronic clock with a guest-host liquid-crystal display is described. The specified drive electronics subject the guest-host liquid-crystal display to frequencies in excess of 32 Hz, preferably about 1 Hz. As a result, the power consumption of the guest-host liquid-crystal display is reduced to such an extent that there is no need for the previously used complex twisted nematic cell. Apart from the price advantage, the elimination of the previously necessary polarisers allows the proposed guest-host liquid-crystal cell to have a greater viewing angle for the display. <IMAGE>
JP14870277A 1977-01-31 1977-12-09 Guestthost lc display Pending JPS5396863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH112477A CH619590GA3 (en) 1977-01-31 1977-01-31 Liquid-crystal display device of the guest-host effect type and use of this liquid-crystal display device

Publications (1)

Publication Number Publication Date
JPS5396863A true JPS5396863A (en) 1978-08-24

Family

ID=4203046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14870277A Pending JPS5396863A (en) 1977-01-31 1977-12-09 Guestthost lc display

Country Status (6)

Country Link
JP (1) JPS5396863A (en)
CH (1) CH619590GA3 (en)
DE (1) DE2707671A1 (en)
FR (1) FR2379127A1 (en)
GB (1) GB1595842A (en)
NL (1) NL7801018A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386350A (en) * 1979-06-26 1983-05-31 Nippon Electric Co., Ltd. Display apparatus
CH687909A5 (en) * 1991-12-31 1997-03-27 Xelux Holding Ag Method for operating an anti-glare device.
CH687809A5 (en) * 1993-05-14 1997-02-28 Xelux Holding Ag Anti-glare device.

Also Published As

Publication number Publication date
FR2379127A1 (en) 1978-08-25
NL7801018A (en) 1978-08-02
GB1595842A (en) 1981-08-19
DE2707671A1 (en) 1978-08-03
CH619590GA3 (en) 1980-10-15
CH619590B (en)

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