CA2384825C - Display illumination device and method of enhancing brightness in a display illumination device - Google Patents

Display illumination device and method of enhancing brightness in a display illumination device Download PDF

Info

Publication number
CA2384825C
CA2384825C CA002384825A CA2384825A CA2384825C CA 2384825 C CA2384825 C CA 2384825C CA 002384825 A CA002384825 A CA 002384825A CA 2384825 A CA2384825 A CA 2384825A CA 2384825 C CA2384825 C CA 2384825C
Authority
CA
Canada
Prior art keywords
optical element
illumination device
lightguide
turning film
diffuser
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 - Fee Related
Application number
CA002384825A
Other languages
English (en)
French (fr)
Other versions
CA2384825A1 (en
Inventor
Wade D. Kretman
Sanford Cobb
Kenneth A. Epstein
Mark E. Gardiner
David L. Wortman
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of CA2384825A1 publication Critical patent/CA2384825A1/en
Application granted granted Critical
Publication of CA2384825C publication Critical patent/CA2384825C/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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
    • 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
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/133545—Dielectric stack 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
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)
CA002384825A 1999-10-08 2000-09-08 Display illumination device and method of enhancing brightness in a display illumination device Expired - Fee Related CA2384825C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US41510099A 1999-10-08 1999-10-08
US09/415,100 1999-10-08
PCT/US2000/024590 WO2001027528A1 (en) 1999-10-08 2000-09-08 Display illumination device and method of enhancing brightness in a display illumination device

Publications (2)

Publication Number Publication Date
CA2384825A1 CA2384825A1 (en) 2001-04-19
CA2384825C true CA2384825C (en) 2006-05-30

Family

ID=23644384

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002384825A Expired - Fee Related CA2384825C (en) 1999-10-08 2000-09-08 Display illumination device and method of enhancing brightness in a display illumination device

Country Status (9)

Country Link
EP (1) EP1218663B1 (https=)
JP (1) JP2003511826A (https=)
KR (1) KR100798711B1 (https=)
CN (1) CN1217224C (https=)
AU (1) AU7356600A (https=)
CA (1) CA2384825C (https=)
DE (1) DE60024653T2 (https=)
HK (1) HK1048510A1 (https=)
WO (1) WO2001027528A1 (https=)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003029251A (ja) * 2001-07-16 2003-01-29 Nec Corp 液晶表示装置
JP3873835B2 (ja) 2002-07-22 2007-01-31 セイコーエプソン株式会社 液晶表示装置及び電子機器
US7293876B2 (en) * 2004-03-24 2007-11-13 Seiko Epson Corporation Light source unit and projector
US7710511B2 (en) * 2004-10-15 2010-05-04 3M Innovative Properties Company Liquid crystal displays with laminated diffuser plates
KR101462161B1 (ko) * 2008-04-11 2014-11-14 삼성디스플레이 주식회사 복합 편광 시트와 이를 포함하는 액정 표시 장치
WO2011050236A2 (en) * 2009-10-24 2011-04-28 3M Innovative Properties Company Voided diffuser
JP5529665B2 (ja) * 2009-11-16 2014-06-25 住友化学株式会社 偏光板、ならびにこれを用いた液晶パネルおよび液晶表示装置
KR101290585B1 (ko) * 2009-12-15 2013-07-30 엘지디스플레이 주식회사 투명표시소자
KR20110076373A (ko) * 2009-12-29 2011-07-06 엘지디스플레이 주식회사 엘에스에프 및 이를 포함하는 액정표시장치
TWI494619B (zh) * 2011-06-09 2015-08-01 Innolux Corp 液晶顯示裝置
WO2013029040A1 (en) 2011-08-25 2013-02-28 Euro-Pro Operating Llc Steam cleaning appliance with vibration and heating components
US9436015B2 (en) 2012-12-21 2016-09-06 Reald Inc. Superlens component for directional display
US10054732B2 (en) 2013-02-22 2018-08-21 Reald Spark, Llc Directional backlight having a rear reflector
TWI636283B (zh) 2012-05-18 2018-09-21 美商瑞爾Ｄ斯帕克有限責任公司 定向背光源、定向顯示裝置及其光源陣列的控制方法
JP6189423B2 (ja) 2012-05-18 2017-08-30 リアルディー スパーク エルエルシー 指向性光源用制御システム
US9678267B2 (en) 2012-05-18 2017-06-13 Reald Spark, Llc Wide angle imaging directional backlights
US9188731B2 (en) 2012-05-18 2015-11-17 Reald Inc. Directional backlight
US9235057B2 (en) * 2012-05-18 2016-01-12 Reald Inc. Polarization recovery in a directional display device
US9709723B2 (en) 2012-05-18 2017-07-18 Reald Spark, Llc Directional backlight
CN110234000B (zh) 2013-06-17 2021-07-13 瑞尔D斯帕克有限责任公司 远程会议方法和远程通信系统
WO2015057625A1 (en) 2013-10-14 2015-04-23 Reald Inc. Control of directional display
US9739928B2 (en) 2013-10-14 2017-08-22 Reald Spark, Llc Light input for directional backlight
WO2015073438A1 (en) 2013-11-15 2015-05-21 Reald Inc. Directional backlights with light emitting element packages
EP3126884A2 (en) * 2014-04-01 2017-02-08 3M Innovative Properties Company Asymmetric turning film with multiple light sources
CN106662773B (zh) 2014-06-26 2021-08-06 瑞尔D 斯帕克有限责任公司 定向防窥显示器
WO2016057690A1 (en) 2014-10-08 2016-04-14 Reald Inc. Directional backlight
WO2016105541A1 (en) 2014-12-24 2016-06-30 Reald Inc. Adjustment of perceived roundness in stereoscopic image of a head
RU2596062C1 (ru) 2015-03-20 2016-08-27 Автономная Некоммерческая Образовательная Организация Высшего Профессионального Образования "Сколковский Институт Науки И Технологий" Способ коррекции изображения глаз с использованием машинного обучения и способ машинного обучения
EP3283906B1 (en) 2015-04-13 2020-09-23 RealD Spark, LLC Wide angle imaging directional backlights
EP3304188B1 (en) 2015-05-27 2020-10-07 RealD Spark, LLC Wide angle imaging directional backlights
EP3369034B1 (en) 2015-10-26 2023-07-05 RealD Spark, LLC Intelligent privacy system, apparatus, and method thereof
US10459321B2 (en) 2015-11-10 2019-10-29 Reald Inc. Distortion matching polarization conversion systems and methods thereof
EP4293417A3 (en) 2015-11-13 2024-01-24 RealD Spark, LLC Surface features for imaging directional backlights
US10330843B2 (en) 2015-11-13 2019-06-25 Reald Spark, Llc Wide angle imaging directional backlights
EP3400706B1 (en) 2016-01-05 2022-04-13 RealD Spark, LLC Gaze correction of multi-view images
WO2017200950A1 (en) 2016-05-19 2017-11-23 Reald Spark, Llc Wide angle imaging directional backlights
WO2017205183A1 (en) 2016-05-23 2017-11-30 Reald Spark, Llc Wide angle imaging directional backlights
CN108169949A (zh) 2016-12-07 2018-06-15 群创光电股份有限公司 显示设备
CN110178072B (zh) 2017-01-04 2022-03-11 瑞尔D斯帕克有限责任公司 用于成像定向背光源的光学叠堆
WO2018187154A1 (en) 2017-04-03 2018-10-11 Reald Spark, Llc Segmented imaging directional backlights
EP4293574A3 (en) 2017-08-08 2024-04-03 RealD Spark, LLC Adjusting a digital representation of a head region
US11115647B2 (en) 2017-11-06 2021-09-07 Reald Spark, Llc Privacy display apparatus
EP3743766B1 (en) 2018-01-25 2026-02-11 RealD Spark, LLC Touch screen for privacy display
CN116194812A (zh) 2020-09-16 2023-05-30 瑞尔D斯帕克有限责任公司 车辆外部照明装置
US12585094B2 (en) 2022-06-22 2026-03-24 Reald Spark, Llc Anamorphic directional illumination device
WO2024030274A1 (en) 2022-08-02 2024-02-08 Reald Spark, Llc Pupil tracking near-eye display
US12282168B2 (en) 2022-08-11 2025-04-22 Reald Spark, Llc Anamorphic directional illumination device with selective light-guiding
DE102023128191A1 (de) * 2023-10-16 2025-04-17 Webasto SE Anzeigevorrichtung und Fahrzeugdach

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH06265892A (ja) * 1993-03-10 1994-09-22 Asahi Glass Co Ltd 照明装置および液晶表示装置
JP3694024B2 (ja) * 1994-04-11 2005-09-14 ミネソタ・マイニング・アンド・マニュファクチャリング・カンパニー テーパ付多層照明装置
JPH11174172A (ja) * 1997-07-30 1999-07-02 Citizen Watch Co Ltd 時 計

Also Published As

Publication number Publication date
CN1377453A (zh) 2002-10-30
DE60024653T2 (de) 2006-08-10
HK1048510A1 (zh) 2003-04-04
AU7356600A (en) 2001-04-23
DE60024653D1 (de) 2006-01-12
CA2384825A1 (en) 2001-04-19
WO2001027528A1 (en) 2001-04-19
JP2003511826A (ja) 2003-03-25
CN1217224C (zh) 2005-08-31
EP1218663B1 (en) 2005-12-07
EP1218663A1 (en) 2002-07-03
KR20020064294A (ko) 2002-08-07
KR100798711B1 (ko) 2008-01-28

Similar Documents

Publication Publication Date Title
CA2384825C (en) Display illumination device and method of enhancing brightness in a display illumination device
CN100595648C (zh) 色彩混合照明单元以及使用该单元的系统
US7903194B2 (en) Optical element for lateral light spreading in back-lit displays and system using same
US6356391B1 (en) Optical film with variable angle prisms
US6845212B2 (en) Optical element having programmed optical structures
US6724446B2 (en) Illumination device and/or a liquid crystal display device
KR100685760B1 (ko) 반사체가 직접 고정되어 있는 광가이드와 이 광가이드의제조 방법
CA2413700C (en) Backlight with structured sufaces
KR100496250B1 (ko) 사이드라이트형면광원장치및액정디스플레이
US20070236960A1 (en) Edge-lit optical display with fluted optical plate
CN101095077A (zh) 具有带凹入的棱锥形结构的结构化表面的光学薄膜
US20060290843A1 (en) Illumination element and system using same
US20060290845A1 (en) Polarization sensitive illumination element and system using same

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed