GB1569680A - Liquid crystal display and control - Google Patents

Liquid crystal display and control Download PDF

Info

Publication number
GB1569680A
GB1569680A GB1755577A GB1755577A GB1569680A GB 1569680 A GB1569680 A GB 1569680A GB 1755577 A GB1755577 A GB 1755577A GB 1755577 A GB1755577 A GB 1755577A GB 1569680 A GB1569680 A GB 1569680A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal display
display according
projection
plane
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.)
Expired
Application number
GB1755577A
Other languages
English (en)
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 and CIE
BBC Brown Boveri AG Switzerland
Original Assignee
BBC BROWN BOVERI and CIE
BBC Brown Boveri AG Switzerland
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 and CIE, BBC Brown Boveri AG Switzerland filed Critical BBC BROWN BOVERI and CIE
Publication of GB1569680A publication Critical patent/GB1569680A/en
Expired 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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
    • G04G9/0035—Details constructional

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
GB1755577A 1976-04-29 1977-04-27 Liquid crystal display and control Expired GB1569680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH538776A CH607120A5 (enrdf_load_stackoverflow) 1976-04-29 1976-04-29

Publications (1)

Publication Number Publication Date
GB1569680A true GB1569680A (en) 1980-06-18

Family

ID=4292719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1755577A Expired GB1569680A (en) 1976-04-29 1977-04-27 Liquid crystal display and control

Country Status (4)

Country Link
JP (2) JPS52132795A (enrdf_load_stackoverflow)
CH (1) CH607120A5 (enrdf_load_stackoverflow)
DE (1) DE2623190A1 (enrdf_load_stackoverflow)
GB (1) GB1569680A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875064A (en) * 1986-08-06 1989-10-17 Casio Computer Co., Ltd. Projector apparatus with mirror means
US5048949A (en) * 1987-11-26 1991-09-17 Casio Computer Co., Ltd. Liquid crystal projector
GB2257555A (en) * 1991-07-09 1993-01-13 Eev Ltd Electro-optical display.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3019311A1 (de) * 1980-05-21 1981-11-26 Vdo Adolf Schindling Ag, 6000 Frankfurt Entspiegelte elektrooptische anzeige
EP0192023A3 (en) * 1985-02-21 1986-10-08 Casio Computer Company Limited Liquid crystal projector
US4671634A (en) * 1985-03-19 1987-06-09 Casio Computer Co., Ltd. Liquid crystal projector
JPH0921990A (ja) * 1985-06-04 1997-01-21 Seiko Epson Corp ビューファインダー
FR2675295B1 (fr) * 1991-04-12 1994-03-11 Sextant Avionique Dispositif pour l'amelioration de la lisibilite d'un afficheur a cristaux liquides.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536857B2 (enrdf_load_stackoverflow) * 1972-08-16 1978-03-11
JPS51121292A (en) * 1975-04-17 1976-10-23 Seiko Epson Corp Liquid crystal display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875064A (en) * 1986-08-06 1989-10-17 Casio Computer Co., Ltd. Projector apparatus with mirror means
US4941732A (en) * 1986-08-06 1990-07-17 Casio Computer Co., Ltd. Transmission type projection screen
US5048949A (en) * 1987-11-26 1991-09-17 Casio Computer Co., Ltd. Liquid crystal projector
GB2257555A (en) * 1991-07-09 1993-01-13 Eev Ltd Electro-optical display.

Also Published As

Publication number Publication date
JPH0123178Y2 (enrdf_load_stackoverflow) 1989-07-17
JPS52132795A (en) 1977-11-07
JPS61109429U (enrdf_load_stackoverflow) 1986-07-11
DE2623190A1 (de) 1977-11-17
CH607120A5 (enrdf_load_stackoverflow) 1978-11-30

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee