JP5990226B2 - 勾配抽出を備える半鏡面の中空のバックライト - Google Patents
勾配抽出を備える半鏡面の中空のバックライト Download PDFInfo
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- JP5990226B2 JP5990226B2 JP2014153707A JP2014153707A JP5990226B2 JP 5990226 B2 JP5990226 B2 JP 5990226B2 JP 2014153707 A JP2014153707 A JP 2014153707A JP 2014153707 A JP2014153707 A JP 2014153707A JP 5990226 B2 JP5990226 B2 JP 5990226B2
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- 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
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
-
- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
-
- 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
- G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type
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- 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
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
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- 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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/14—Arrangements of reflectors therein
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Description
2.前面及び背面反射体のうちの一方又は両方の形状、
3.前面及び背面反射体の反射特性及び透過特性、
4.光抽出素子の反射特性、透過特性、及び拡散特性、
5.少なくとも1つの半鏡面素子の反射特性、並びに
6.1つ以上の光源によりキャビティ内へ放射される光の平均光束偏差角。
対角32”(81.3cm)、16:9のバックライトが作られた。バックライトは以下の寸法を備えて、図1と同様に設計された。長さLは398.5mmであり、高さHは15.0mmであり、略放物線状の反射体(図1における素子165)は、深さ21mm及び幅14mmと計測され(深さは左への距離であり、幅は端部132に沿った開口部である)、光源160は2.6mmと測定された。側面反射体(図1における素子134)は、垂直(素子110に最も近い末端部は、光源により近い)から約3.8°傾けた。ビーズ状の利得拡散体(同時係属の米国特許出願第60/939,085号、「RECYCLING BACKLIGHTS WITH SEMI−SPECULAR COMPONENTS」の実施例1に記載されている手順に従って調製された)は、半鏡面素子として使用された(図1における素子150)。光エンジン及びキャビティの全ての他の内面は、他に指定がない限り、3M companyから入手可能なESRを用いて裏打ちされた。2つの異なる部分的透過性の前面反射体(図1における素子110)を使用して、光抽出素子のないシミュレーションが実施された。第1の部分的透過性の前面反射体(ARFとして設計された)は、通過方向において、32%の透過率及び83%の半球反射率を有する非対象反射性フィルム(ARF)だった。第2の部分的透過性の前面反射体(APFとして設計された)は、51%の半球反射率を有するAdvanced Polarizing Film(高度偏光フィルム)だった。
Claims (3)
- 出力面(135;235;335)を含む中空の光リサイクリングキャビティ(130;230;330)を形成する、部分的透過性の前面反射体(110;210;310)及び背面反射体(120;220;320)と、
前記中空の光リサイクリングキャビティ(130;230;330)内に配置された半鏡面素子(150;250)と、
前記中空の光リサイクリングキャビティ(130;230;330)内に配置された光抽出素子(140;242,244,246;340)であって、勾配鏡面性を有する光抽出素子(140;242,244,246;340)と、
光を前記中空の光リサイクリングキャビティ(130;230;330)内に注入するように配置された少なくとも1つの光源(160;260,270;360,370)であって、前記出力面(135;235;335)が、前記出力面(135;235;335)に平行な平面として横断面を画定し、前記光源(160;260,270;360,370)が、前記横断面に対して0〜40度の範囲の平均光束偏差角で、前記中空のリサイクリングキャビティ(130;230;330)内に光ビームを注入する、少なくとも1つの光源(160;260,270;360,370)と、
を含む、バックライト(100;200;300)。 - 前記光抽出素子が勾配拡散体を含む、請求項1に記載のバックライト。
- 前記部分的透過性の前面反射体が、可視光線に対して半球反射率 Rf hemiを含み、前記背面反射体が、可視光線に対して半球反射率 Rb hemiを含み、Rf hemi*Rb hemiは、少なくとも0.45である、請求項1に記載のバックライト。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10860608P | 2008-10-27 | 2008-10-27 | |
US61/108,606 | 2008-10-27 |
Related Parent Applications (1)
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JP2011533229A Division JP2012507118A (ja) | 2008-10-27 | 2009-10-12 | 勾配抽出を備える半鏡面の中空のバックライト |
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JP2014209499A JP2014209499A (ja) | 2014-11-06 |
JP5990226B2 true JP5990226B2 (ja) | 2016-09-07 |
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JP2011533229A Withdrawn JP2012507118A (ja) | 2008-10-27 | 2009-10-12 | 勾配抽出を備える半鏡面の中空のバックライト |
JP2014153707A Expired - Fee Related JP5990226B2 (ja) | 2008-10-27 | 2014-07-29 | 勾配抽出を備える半鏡面の中空のバックライト |
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JP2011533229A Withdrawn JP2012507118A (ja) | 2008-10-27 | 2009-10-12 | 勾配抽出を備える半鏡面の中空のバックライト |
Country Status (8)
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US (2) | US8591052B2 (ja) |
EP (1) | EP2350737B1 (ja) |
JP (2) | JP2012507118A (ja) |
KR (2) | KR20110080170A (ja) |
CN (1) | CN102224448B (ja) |
BR (1) | BRPI0914366A2 (ja) |
TW (1) | TWI490606B (ja) |
WO (1) | WO2010062485A1 (ja) |
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-
2009
- 2009-10-12 BR BRPI0914366A patent/BRPI0914366A2/pt not_active IP Right Cessation
- 2009-10-12 KR KR1020117011659A patent/KR20110080170A/ko active Application Filing
- 2009-10-12 US US13/124,951 patent/US8591052B2/en not_active Expired - Fee Related
- 2009-10-12 WO PCT/US2009/060308 patent/WO2010062485A1/en active Application Filing
- 2009-10-12 JP JP2011533229A patent/JP2012507118A/ja not_active Withdrawn
- 2009-10-12 CN CN200980146578.5A patent/CN102224448B/zh not_active Expired - Fee Related
- 2009-10-12 EP EP09829539.7A patent/EP2350737B1/en not_active Not-in-force
- 2009-10-12 KR KR1020177004674A patent/KR20170021914A/ko not_active Application Discontinuation
- 2009-10-23 TW TW098136013A patent/TWI490606B/zh not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
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WO2010062485A1 (en) | 2010-06-03 |
KR20110080170A (ko) | 2011-07-12 |
KR20170021914A (ko) | 2017-02-28 |
BRPI0914366A2 (pt) | 2015-10-20 |
US20140009912A1 (en) | 2014-01-09 |
US20110199352A1 (en) | 2011-08-18 |
JP2014209499A (ja) | 2014-11-06 |
CN102224448A (zh) | 2011-10-19 |
JP2012507118A (ja) | 2012-03-22 |
TWI490606B (zh) | 2015-07-01 |
CN102224448B (zh) | 2015-06-10 |
EP2350737A1 (en) | 2011-08-03 |
EP2350737B1 (en) | 2014-11-26 |
US8591052B2 (en) | 2013-11-26 |
US8807774B2 (en) | 2014-08-19 |
TW201027192A (en) | 2010-07-16 |
EP2350737A4 (en) | 2012-05-09 |
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