WO1997011404A1 - Flat-panel picture display device - Google Patents
Flat-panel picture display device Download PDFInfo
- Publication number
- WO1997011404A1 WO1997011404A1 PCT/IB1996/000952 IB9600952W WO9711404A1 WO 1997011404 A1 WO1997011404 A1 WO 1997011404A1 IB 9600952 W IB9600952 W IB 9600952W WO 9711404 A1 WO9711404 A1 WO 9711404A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- picture display
- light
- panel
- display device
- flat
- Prior art date
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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- 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
- G02F1/133528—Polarisers
- G02F1/133536—Reflective polarizers
-
- 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
- G02F1/133528—Polarisers
- G02F1/133543—Cholesteric polarisers
-
- 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
- G02F1/133528—Polarisers
- G02F1/13355—Polarising beam splitters [PBS]
-
- 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
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
Definitions
- a flat-panel picture display device of the type described in the opening paragraph is known, for example, from United States Patent US-A 4,212,048.
- a picture display panel is illuminated by means of an illumination system which consists of a light source and a wedge-shaped transparent plate which functions as an optical waveguide.
- the light rays emitted by the light source are coupled in at an end face of the optical waveguide and propagate through the waveguide because they undergo total internal reflection at the interface between optical waveguide and air. Since the angle of incidence of the light rays at the interface of the optical waveguide facing the picture display panel decreases upon each reflection, this angle will be smaller at a given instant than the critical angle and the relevant light rays will leave the optical waveguide.
- a further embodiment of the flat-panel picture display device according to the invention is characterized in that the reflective polarizer is implemented as a cholesteric polarizer.
- a single-layer cholesteric polarizer with a varying pitch has the advantage that it is thinner and is less liable to reflection losses, because the interfaces between the several layers are eliminated.
- a further advantage of a pitch which is variable across the layer of the polarizer is that the reflection bandwidth can be chosen to be so wide that the band shift which occurs upon light incidence at a large angle with respect to the normal on the polarizer does not have any detrimental influence on the polarizing effect of the cholesteric layer.
- the cholesteric polarizer may be, for example, a self-supporting film. If this is not the case, the cholesteric layer should be provided on a substrate. This may be, for example, an optically transparent plate.
- An advantageous embodiment of the flat-panel picture display device according to the invention is characterized in that the n. ⁇ /4 plate functions as a substrate for the cholesteric polarizer. By providing the cholesteric layer on the n. ⁇ /4 plate, a separate substrate may be dispensed with, so that the picture display device can be implemented in a thinner form.
- the light passed by the reflective polarizer 31 is incident on a light- directing system 33 which is present at the surface 35 of the reflective polarizer 31 remote from the picture display panel 3.
- the light incident on the light-directing system 33 will at least partly be sent towards the picture display panel 3.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9512523A JPH10509537A (en) | 1995-09-22 | 1996-09-16 | Flat panel image display device |
EP96928653A EP0793815B1 (en) | 1995-09-22 | 1996-09-16 | Flat-panel picture display device |
DE69632679T DE69632679T2 (en) | 1995-09-22 | 1996-09-16 | FLAT PANEL DISPLAY |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95202559 | 1995-09-22 | ||
EP95202559.1 | 1995-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997011404A1 true WO1997011404A1 (en) | 1997-03-27 |
Family
ID=8220650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1996/000952 WO1997011404A1 (en) | 1995-09-22 | 1996-09-16 | Flat-panel picture display device |
Country Status (7)
Country | Link |
---|---|
US (1) | US5808713A (en) |
EP (1) | EP0793815B1 (en) |
JP (1) | JPH10509537A (en) |
KR (1) | KR100428523B1 (en) |
CN (1) | CN1113268C (en) |
DE (1) | DE69632679T2 (en) |
WO (1) | WO1997011404A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003078892A1 (en) * | 2002-03-18 | 2003-09-25 | Koninklijke Philips Electronics N.V. | Polorized-light-emitting waveguide, illumination arrangement and display device comprising such |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5910854A (en) | 1993-02-26 | 1999-06-08 | Donnelly Corporation | Electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films, and processes for making such solid films and devices |
US5668663A (en) | 1994-05-05 | 1997-09-16 | Donnelly Corporation | Electrochromic mirrors and devices |
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US6124886A (en) | 1997-08-25 | 2000-09-26 | Donnelly Corporation | Modular rearview mirror assembly |
US6172613B1 (en) | 1998-02-18 | 2001-01-09 | Donnelly Corporation | Rearview mirror assembly incorporating vehicle information display |
US6326613B1 (en) | 1998-01-07 | 2001-12-04 | Donnelly Corporation | Vehicle interior mirror assembly adapted for containing a rain sensor |
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US6329925B1 (en) | 1999-11-24 | 2001-12-11 | Donnelly Corporation | Rearview mirror assembly with added feature modular display |
US6477464B2 (en) | 2000-03-09 | 2002-11-05 | Donnelly Corporation | Complete mirror-based global-positioning system (GPS) navigation solution |
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US6241903B1 (en) | 1998-08-20 | 2001-06-05 | Physical Optics Corporation | Diffuser master and method of manufacture |
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US6933991B2 (en) * | 1999-01-22 | 2005-08-23 | White Electronic Designs Corp. | Super bright low reflectance liquid crystal display |
EP1063561A1 (en) * | 1999-06-11 | 2000-12-27 | Mannesmann VDO Aktiengesellschaft | Liquid crystal display device |
US6822711B1 (en) * | 1999-09-30 | 2004-11-23 | Casio Computer Co., Ltd. | Liquid crystal display apparatus using polarizing element transmitting one of two polarizing components crossing at right angles and reflecting the other component |
KR100320296B1 (en) * | 1999-09-30 | 2002-01-10 | 황기연 | Photoelectric flat display pannel |
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JP2001228315A (en) * | 2000-02-14 | 2001-08-24 | Nitto Denko Corp | Reflecting plate and liquid crystal display device |
US7370983B2 (en) | 2000-03-02 | 2008-05-13 | Donnelly Corporation | Interior mirror assembly with display |
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JP4197572B2 (en) | 2000-05-12 | 2008-12-17 | 日東電工株式会社 | Reflective liquid crystal display |
US6352350B1 (en) | 2000-06-01 | 2002-03-05 | Agilent Technologies, Inc. | High efficiency flat illuminator for liquid crystal micro-display |
JP4570228B2 (en) * | 2000-10-11 | 2010-10-27 | 日東電工株式会社 | Glass substrate and liquid crystal display device |
JP2002131552A (en) | 2000-10-24 | 2002-05-09 | Nitto Denko Corp | Light guiding plate, planer light source device and reflective liquid crystal display |
ATE363413T1 (en) | 2001-01-23 | 2007-06-15 | Donnelly Corp | IMPROVED VEHICLE LIGHTING SYSTEM |
US7255451B2 (en) | 2002-09-20 | 2007-08-14 | Donnelly Corporation | Electro-optic mirror cell |
US7581859B2 (en) | 2005-09-14 | 2009-09-01 | Donnelly Corp. | Display device for exterior rearview mirror |
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JP2003057653A (en) * | 2001-08-21 | 2003-02-26 | Citizen Watch Co Ltd | Liquid crystal display device |
US6918674B2 (en) | 2002-05-03 | 2005-07-19 | Donnelly Corporation | Vehicle rearview mirror system |
US7329013B2 (en) | 2002-06-06 | 2008-02-12 | Donnelly Corporation | Interior rearview mirror system with compass |
WO2003105099A1 (en) | 2002-06-06 | 2003-12-18 | Donnelly Corporation | Interior rearview mirror system with compass |
US7310177B2 (en) | 2002-09-20 | 2007-12-18 | Donnelly Corporation | Electro-optic reflective element assembly |
WO2004103772A2 (en) | 2003-05-19 | 2004-12-02 | Donnelly Corporation | Mirror assembly for vehicle |
AU2003278863A1 (en) | 2002-09-20 | 2004-04-08 | Donnelly Corporation | Mirror reflective element assembly |
JP4087681B2 (en) * | 2002-10-29 | 2008-05-21 | 株式会社日立製作所 | LIGHTING DEVICE AND DISPLAY DEVICE USING THE SAME |
US20060072302A1 (en) * | 2004-10-01 | 2006-04-06 | Chien Tseng L | Electro-luminescent (EL) illuminated wall plate device with push-tighten frame means |
US7446924B2 (en) | 2003-10-02 | 2008-11-04 | Donnelly Corporation | Mirror reflective element assembly including electronic component |
US7308341B2 (en) | 2003-10-14 | 2007-12-11 | Donnelly Corporation | Vehicle communication system |
ATE517368T1 (en) | 2005-05-16 | 2011-08-15 | Donnelly Corp | VEHICLE MIRROR ARRANGEMENT WITH CHARACTER ON THE REFLECTIVE PART |
US8154418B2 (en) | 2008-03-31 | 2012-04-10 | Magna Mirrors Of America, Inc. | Interior rearview mirror system |
US7660047B1 (en) | 2008-09-03 | 2010-02-09 | Microsoft Corporation | Flat panel lens |
US9487144B2 (en) | 2008-10-16 | 2016-11-08 | Magna Mirrors Of America, Inc. | Interior mirror assembly with display |
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JP2012524381A (en) | 2009-04-15 | 2012-10-11 | スリーエム イノベイティブ プロパティズ カンパニー | Black light for light guide and display system with optical film containing voids |
US8354806B2 (en) * | 2009-08-21 | 2013-01-15 | Microsoft Corporation | Scanning collimation of light via flat panel lamp |
US20110044582A1 (en) * | 2009-08-21 | 2011-02-24 | Microsoft Corporation | Efficient collimation of light with optical wedge |
WO2011050254A1 (en) | 2009-10-24 | 2011-04-28 | 3M Innovative Properties Company | Light source and display system incorporating same |
JP2011095407A (en) * | 2009-10-28 | 2011-05-12 | Casio Computer Co Ltd | Display device |
WO2011071728A1 (en) | 2009-12-08 | 2011-06-16 | 3M Innovative Properties Company | Optical constructions incorporating a light guide and low refrative index films |
JP2010122707A (en) * | 2010-01-22 | 2010-06-03 | Nitto Denko Corp | Optical film |
WO2011129833A1 (en) | 2010-04-15 | 2011-10-20 | 3M Innovative Properties Company | Retroreflective articles including optically active areas and optically inactive areas |
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MX341955B (en) | 2010-04-15 | 2016-09-08 | 3M Innovative Properties Co | Retroreflective articles including optically active areas and optically inactive areas. |
TWI443390B (en) * | 2010-12-29 | 2014-07-01 | Ind Tech Res Inst | Broadband cholesteric liquid crystal film, method for fabricating the same, polarization device employing the same, and high light efficiency liquid crystal display employing the same |
US9201185B2 (en) | 2011-02-04 | 2015-12-01 | Microsoft Technology Licensing, Llc | Directional backlighting for display panels |
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US9870066B2 (en) | 2012-03-02 | 2018-01-16 | Microsoft Technology Licensing, Llc | Method of manufacturing an input device |
US9075566B2 (en) | 2012-03-02 | 2015-07-07 | Microsoft Technoogy Licensing, LLC | Flexible hinge spine |
US20130300590A1 (en) | 2012-05-14 | 2013-11-14 | Paul Henry Dietz | Audio Feedback |
US8947353B2 (en) | 2012-06-12 | 2015-02-03 | Microsoft Corporation | Photosensor array gesture detection |
US9256089B2 (en) | 2012-06-15 | 2016-02-09 | Microsoft Technology Licensing, Llc | Object-detecting backlight unit |
US8964379B2 (en) | 2012-08-20 | 2015-02-24 | Microsoft Corporation | Switchable magnetic lock |
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US9552777B2 (en) | 2013-05-10 | 2017-01-24 | Microsoft Technology Licensing, Llc | Phase control backlight |
US10120420B2 (en) | 2014-03-21 | 2018-11-06 | Microsoft Technology Licensing, Llc | Lockable display and techniques enabling use of lockable displays |
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KR102459728B1 (en) * | 2017-10-20 | 2022-10-31 | 삼성디스플레이 주식회사 | Liquid crystal display panel and liquid crystal display device including the same |
JP2021032938A (en) | 2019-08-19 | 2021-03-01 | 株式会社ジャパンディスプレイ | Display |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4212048A (en) * | 1978-06-16 | 1980-07-08 | General Electric Company | Illuminator for reflective dichroic liquid crystal displays |
US4985809A (en) * | 1988-08-23 | 1991-01-15 | Matsushita Electric Industrial Co., Ltd. | Surface light source panel |
EP0606939A1 (en) * | 1993-01-11 | 1994-07-20 | Koninklijke Philips Electronics N.V. | Illumination system and display device including such a system |
EP0636918A1 (en) * | 1993-07-30 | 1995-02-01 | Koninklijke Philips Electronics N.V. | Flat-panel display device, illumination system and radiation source suitable for use in such a flat-panel display device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3960438A (en) * | 1972-12-01 | 1976-06-01 | Honeywell Inc. | Reflective displays |
US4266859A (en) * | 1977-10-14 | 1981-05-12 | Citizen Watch Co., Ltd. | Liquid crystal display device |
US5099343A (en) * | 1989-05-25 | 1992-03-24 | Hughes Aircraft Company | Edge-illuminated liquid crystal display devices |
US5217794A (en) * | 1991-01-22 | 1993-06-08 | The Dow Chemical Company | Lamellar polymeric body |
JP2651088B2 (en) * | 1992-08-28 | 1997-09-10 | スタンレー電気株式会社 | LCD panel |
TW594115B (en) * | 1992-10-09 | 2004-06-21 | Asahi Glass Co Ltd | A liquid crystal display device and an illumination device for a direct viewing type display element |
US5333072A (en) * | 1992-12-31 | 1994-07-26 | Minnesota Mining And Manufacturing Company | Reflective liquid crystal display overhead projection system using a reflective linear polarizer and a fresnel lens |
US5325218A (en) * | 1992-12-31 | 1994-06-28 | Minnesota Mining And Manufacturing Company | Cholesteric polarizer for liquid crystal display and overhead projector |
TW289095B (en) * | 1993-01-11 | 1996-10-21 | ||
US5627666A (en) * | 1994-07-27 | 1997-05-06 | Board Of Regents Of The University Of Colorado | Liquid crystal phase modulator using cholesteric circular polarizers |
-
1996
- 1996-09-16 DE DE69632679T patent/DE69632679T2/en not_active Expired - Fee Related
- 1996-09-16 WO PCT/IB1996/000952 patent/WO1997011404A1/en active IP Right Grant
- 1996-09-16 KR KR1019970703393A patent/KR100428523B1/en not_active IP Right Cessation
- 1996-09-16 CN CN96191108A patent/CN1113268C/en not_active Expired - Fee Related
- 1996-09-16 EP EP96928653A patent/EP0793815B1/en not_active Expired - Lifetime
- 1996-09-16 JP JP9512523A patent/JPH10509537A/en not_active Ceased
- 1996-09-20 US US08/710,625 patent/US5808713A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4212048A (en) * | 1978-06-16 | 1980-07-08 | General Electric Company | Illuminator for reflective dichroic liquid crystal displays |
US4985809A (en) * | 1988-08-23 | 1991-01-15 | Matsushita Electric Industrial Co., Ltd. | Surface light source panel |
EP0606939A1 (en) * | 1993-01-11 | 1994-07-20 | Koninklijke Philips Electronics N.V. | Illumination system and display device including such a system |
EP0636918A1 (en) * | 1993-07-30 | 1995-02-01 | Koninklijke Philips Electronics N.V. | Flat-panel display device, illumination system and radiation source suitable for use in such a flat-panel display device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003078892A1 (en) * | 2002-03-18 | 2003-09-25 | Koninklijke Philips Electronics N.V. | Polorized-light-emitting waveguide, illumination arrangement and display device comprising such |
US7027671B2 (en) | 2002-03-18 | 2006-04-11 | Koninklijke Philips Electronics N.V. | Polarized-light-emitting waveguide, illumination arrangement and display device comprising such |
Also Published As
Publication number | Publication date |
---|---|
CN1165564A (en) | 1997-11-19 |
KR970707463A (en) | 1997-12-01 |
EP0793815B1 (en) | 2004-06-09 |
CN1113268C (en) | 2003-07-02 |
JPH10509537A (en) | 1998-09-14 |
US5808713A (en) | 1998-09-15 |
KR100428523B1 (en) | 2004-08-25 |
DE69632679D1 (en) | 2004-07-15 |
DE69632679T2 (en) | 2005-06-16 |
EP0793815A1 (en) | 1997-09-10 |
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