GB1298257A - Liquid crystal device - Google Patents

Liquid crystal device

Info

Publication number
GB1298257A
GB1298257A GB3715970A GB3715970A GB1298257A GB 1298257 A GB1298257 A GB 1298257A GB 3715970 A GB3715970 A GB 3715970A GB 3715970 A GB3715970 A GB 3715970A GB 1298257 A GB1298257 A GB 1298257A
Authority
GB
United Kingdom
Prior art keywords
transparent
electrodes
plates
liquid
vanes
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
GB3715970A
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of GB1298257A publication Critical patent/GB1298257A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/14—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by means of electrically scanned solid-state devices
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides

Abstract

1298257 Matrix displays RCA CORPORATION 31 July 1970 [25 Aug 1969] 37159/70 Heading G5C A display device comprises a cell containing transparent nematic liquid crystals 17 between transparent plates 11, 12, transparent electrodes 15, 16 associated with each plate and a plurality of planar elements 46 disposed over and inclined to one of the plates to prevent direct light passing. Parallel tin oxide strip electrodes on each plate are arranged to form a crossed array. Spacers are disposed between and bonded to the plates 11, 12. The elements 46 comprise opaque dull black vanes embedded in a transparent plastics material 44. Applying A.C., D.C. or pulsed D.C. potential between a pair of opposed electrodes causes local turbulence in the liquid, e.g. anislidene-p-aminophenylacetate which produces a forward light scattering state and a white appearance compared to the black background of the vanes visible through unenergized areas of the liquid. The degree of scattering is directly proportional to the potential above a threshold value. The electrodes may be sequentially energized or a number simultaneously energized to produce a fixed display.
GB3715970A 1969-08-25 1970-07-31 Liquid crystal device Expired GB1298257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85266469A 1969-08-25 1969-08-25

Publications (1)

Publication Number Publication Date
GB1298257A true GB1298257A (en) 1972-11-29

Family

ID=25313923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3715970A Expired GB1298257A (en) 1969-08-25 1970-07-31 Liquid crystal device

Country Status (8)

Country Link
BE (1) BE755222A (en)
CA (1) CA961146B (en)
CH (1) CH539314A (en)
DE (1) DE2042180B2 (en)
FR (1) FR2058972A5 (en)
GB (1) GB1298257A (en)
NL (1) NL7012488A (en)
SE (1) SE376675B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214983B2 (en) * 1972-01-31 1977-04-26
US3792198A (en) * 1972-09-28 1974-02-12 Ibm Partition system for image displays
JPS49115563A (en) * 1973-03-07 1974-11-05
JPS5016557A (en) * 1973-06-11 1975-02-21
DE2355134C2 (en) * 1973-11-05 1983-04-07 Vdo Adolf Schindling Ag, 6000 Frankfurt Display device
DE2708433A1 (en) * 1977-02-26 1978-08-31 Kirsten Elektrotech Illuminated dashboard for military vehicle - uses collimator grille comprising array of opaque slats to prevent stray light
DE2845858C2 (en) * 1978-10-21 1981-10-08 Standard Elektrik Lorenz Ag, 7000 Stuttgart Display arrangement
DE2931328C2 (en) * 1979-08-02 1981-10-01 Standard Elektrik Lorenz Ag, 7000 Stuttgart Display arrangement with a liquid cell
DE2937054A1 (en) * 1979-09-13 1981-03-19 Standard Elektrik Lorenz Ag, 7000 Stuttgart DISPLAY ARRANGEMENT WITH A LIQUID CELL
DE2937433C2 (en) * 1979-09-15 1981-08-06 Standard Elektrik Lorenz Ag, 7000 Stuttgart Exposure arrangement
DE2937974A1 (en) * 1979-09-20 1981-04-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt DEVICE FOR ELECTROOPTICALLY CONTROLLING A LIGHT BUNDLE
JPS56170434U (en) * 1981-04-16 1981-12-16
GB2120396A (en) * 1982-05-06 1983-11-30 Standard Telephones Cables Ltd Transmission type liquid crystal display device

Also Published As

Publication number Publication date
CH539314A (en) 1973-07-15
NL7012488A (en) 1971-03-01
BE755222A (en) 1971-02-01
FR2058972A5 (en) 1971-05-28
DE2042180A1 (en) 1972-02-17
CA961146B (en) 1975-01-14
DE2042180B2 (en) 1973-01-18
SE376675B (en) 1975-06-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee