GB2327769A - Display system - Google Patents

Display system

Info

Publication number
GB2327769A
GB2327769A GB9822752A GB9822752A GB2327769A GB 2327769 A GB2327769 A GB 2327769A GB 9822752 A GB9822752 A GB 9822752A GB 9822752 A GB9822752 A GB 9822752A GB 2327769 A GB2327769 A GB 2327769A
Authority
GB
United Kingdom
Prior art keywords
light
phosphor
input
lens
output means
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.)
Granted
Application number
GB9822752A
Other versions
GB9822752D0 (en
GB2327769A8 (en
GB2327769B (en
Inventor
William Alden Crossland
Anthony Bernard Davey
Vincent Geake
Ian David Springle
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB9822752D0 publication Critical patent/GB9822752D0/en
Publication of GB2327769A publication Critical patent/GB2327769A/en
Publication of GB2327769A8 publication Critical patent/GB2327769A8/en
Application granted granted Critical
Publication of GB2327769B publication Critical patent/GB2327769B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02F1/1336—Illuminating devices
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
    • 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
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information
    • H04N5/70—Circuit details for electroluminescent devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers

Abstract

A modulator for modulating input collimated light, in particular UV, uses a spatial filtering arrangement to direct the input light onto phosphor emitters. To this end it comprises at least one switchable beam-deflecting device, such as a scattering LCD (1), at least one lens (3) and at least one secondary output means such as a phosphor screen (9, 11) which emits visible light when input light is directed towards it through the lens. The beam-deflecting device (1) is arranged so that, in its scattering state, it substantially prevents the input light from reaching the secondary output means, hence producing a dark output, while in its other (clear) state the UV light passes through the pinhole (5) and reaches the phosphor (11).
GB9822752A 1996-04-25 1997-04-25 Display system Expired - Fee Related GB2327769B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9608541.0A GB9608541D0 (en) 1996-04-25 1996-04-25 Display system
PCT/GB1997/001160 WO1997040418A1 (en) 1996-04-25 1997-04-25 Display system

Publications (4)

Publication Number Publication Date
GB9822752D0 GB9822752D0 (en) 1998-12-16
GB2327769A true GB2327769A (en) 1999-02-03
GB2327769A8 GB2327769A8 (en) 1999-02-18
GB2327769B GB2327769B (en) 2000-10-04

Family

ID=10792601

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9608541.0A Pending GB9608541D0 (en) 1996-04-25 1996-04-25 Display system
GB9822752A Expired - Fee Related GB2327769B (en) 1996-04-25 1997-04-25 Display system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9608541.0A Pending GB9608541D0 (en) 1996-04-25 1996-04-25 Display system

Country Status (3)

Country Link
AU (1) AU2645197A (en)
GB (2) GB9608541D0 (en)
WO (1) WO1997040418A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9819359D0 (en) * 1998-09-04 1998-10-28 Screen Tech Ltd Phosphor arrangement for liquid-crystal displays
CN1319196A (en) * 1998-09-21 2001-10-24 屏幕技术有限公司 Optical arrangement for flat-panel displays
GB0107076D0 (en) * 2001-03-21 2001-05-09 Screen Technology Ltd Liquid-crystal display using emissive elements
DE10325601B3 (en) * 2003-06-05 2005-01-13 Universität Stuttgart Switchable point light source array and its use in interferometry

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194228A (en) * 1986-02-20 1987-08-26 Matsushita Electric Ind Co Ltd Light emission type display device
WO1991008508A1 (en) * 1989-11-24 1991-06-13 Innovare Limited A display device
JPH04350693A (en) * 1991-05-28 1992-12-04 Clarion Co Ltd Display device
JPH05313154A (en) * 1992-05-06 1993-11-26 Mitsubishi Electric Corp Liquid crystal display device
WO1995027920A1 (en) * 1994-04-06 1995-10-19 Screen Technology Limited Display screen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194228A (en) * 1986-02-20 1987-08-26 Matsushita Electric Ind Co Ltd Light emission type display device
WO1991008508A1 (en) * 1989-11-24 1991-06-13 Innovare Limited A display device
JPH04350693A (en) * 1991-05-28 1992-12-04 Clarion Co Ltd Display device
JPH05313154A (en) * 1992-05-06 1993-11-26 Mitsubishi Electric Corp Liquid crystal display device
WO1995027920A1 (en) * 1994-04-06 1995-10-19 Screen Technology Limited Display screen

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
MICROLENS ARRAY TOPICAL MEETING vol. 3 no. 2 ISSSN 0963-9659PURE AND APPLIED OPTICS pages 143-150 *
Patent Abstracts of Japan vol. 12 no. 215 (P-665) & JP 62 194 228 A *
Patent Abstracts of Japan vol. 17 no. 215 (P-1527) & JP 04 350 693 A *

Also Published As

Publication number Publication date
GB9822752D0 (en) 1998-12-16
GB2327769A8 (en) 1999-02-18
GB9608541D0 (en) 1996-07-03
WO1997040418A1 (en) 1997-10-30
GB2327769B (en) 2000-10-04
AU2645197A (en) 1997-11-12

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020425