JP2010536135A - ディスプレイ装置を照明する照明システム及びディスプレイ装置 - Google Patents
ディスプレイ装置を照明する照明システム及びディスプレイ装置 Download PDFInfo
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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
- G02B6/005—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
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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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
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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
- G02F1/133621—Illuminating devices providing coloured light
-
- 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
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of 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
- G02B6/0011—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
- G02B6/0045—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 by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
-
- 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
- G02F1/133603—Direct backlight with LEDs
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- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
【選択図】図3
Description
Claims (22)
- ディスプレイ装置(6)を照明する照明システム(7,17)であって、
複数の半透明のタイル(9,19)を有し、各半透明タイル(9,19)は、光を前記タイル(9,19)の外部結合面に向かって反射する反射手段(11,22)を備え、
1つ又は複数の発光ダイオード(LED)(15,18)の複数のアレイ(8)を有し、LED(15,18)の各アレイ(8)は、光を実質的に少なくとも1つの半透明タイル(9,19)に向かって放出するよう配置されており、
前記反射手段(11,21,22)は、前記半透明タイル(9,19)から距離を置いたところに位置決めされた受光面(10,20)に向いている前記タイル(9,19)の少なくとも1つの外部結合面に向かって光を反射するようになっており、前記反射は、少なくとも2つのタイル(9,19)によって放出された光が前記受光面(10,20)によって受光される前に少なくとも部分的に混合されるものである、照明システム(7,17)。 - 前記タイル(9,19)によって放出された光の少なくとも相当な部分は、前記受光面(10,20)の垂線と少なくとも45°の角度をなす方向に放出される、請求項1記載の照明システム(7,17)。
- 各タイル(9,19)によって放出された光は、前記タイル(9,19)の外部結合面の垂線と0°〜90°の角度をなす方向に放出される、請求項1又は2記載の照明システム(7,17)。
- 前記受光面(10,20)は、前記照明システム(7,17)の一部をなす光学的方向変更構造体(10,20)によって形成されている、請求項1〜3のいずれか1項に記載の照明システム(7,17)。
- 少なくとも1つのタイル(9,19)は、LED(15,18)の少なくとも2つのアレイ(8)によって照明される、請求項1〜4のいずれか1項に記載の照明システム(7,17)。
- 前記LED(15,18)のアレイ(8)は、光を実質的に、前記半透明タイル(9,19)の互いに異なる内部結合面(14)に向かって放出するよう配置されている、請求項4記載の照明システム(7,17)。
- 前記LED(15,18)の前記アレイ(8)は、光を実質的に、前記半透明タイル(9,19)の互いに対向する内部結合面(14)に向かって放出するよう配置されている、請求項6記載の照明システム(7,17)。
- 各半透明タイル(9,19)は、前記タイル(9,19)により放出される前に、アレイ(8)に属するLED(15,18)により放出された光の混合を可能にするほど十分広い、請求項1〜7のいずれか1項に記載の照明システム(7,17)。
- 少なくとも1つの半透明タイル(9,19)は、複数の外部結合面を有し、少なくとも2つの外部結合面が互いに角度をなしている、請求項1〜8のいずれか1項に記載の照明システム(7,17)。
- 前記反射手段(11,21,22)は、前記受光面(10,20)から離れる方向に向けられた各タイル(9,19)の表面のところに設けられている、請求項1〜9のいずれか1項に記載の照明システム(7,17)。
- 前記反射面(11,21,22)は、少なくとも1つの反射パターンを備えている、請求項10記載の照明システム(7,17)。
- 前記反射面(11,21,22)は、少なくとも1つの反射歯構造体(11,22)を備えている、請求項11記載の照明システム(7,17)。
- 前記反射手段(11,21,22)は、鏡面反射性及び/又は拡散性ミラーを含む、請求項10〜12のいずれか1項に記載の照明システム(7,17)。
- 前記半透明タイル(9,19)と前記受光面(10,20)との間には空隙(12,23)が存在している、請求項1〜13のいずれか1項に記載の照明システム(7,17)。
- 前記空隙(12,23)は、前記受光面(10,20)の実質的に均一な照明を可能にするほど十分広い、請求項14記載の照明システム(7,17)。
- 前記半透明タイル(9,19)と前記受光面(10,20)との間の最も短い距離は、少なくとも3mmである、請求項14又は15記載の照明システム(7,17)。
- 前記受光面(10,20)は、複数のマイクロプリズムを有する、請求項1〜16のいずれか1項に記載の照明システム(7,17)。
- 前記受光面(10,20)は、少なくとも1つの光学的方向変更箔を有する、請求項1〜17のいずれか1項に記載の照明システム(7,17)。
- 前記照明システム(7,17)は、前記LED(15,18)の前記アレイ(8)をそれぞれオンオフに選択的に切り替える制御ユニットを有する、請求項1〜18のいずれか1項に記載の照明システム(7,17)。
- 前記照明システム(7,17)は、照明されるべきディスプレイ装置(6)のイメージコンテンツに応じて、前記LED(15,18)の前記アレイ(8)をオンオフに選択的に切り替える制御ユニットを有する、請求項19記載の照明システム(7,17)。
- 少なくとも2つの半透明タイル(9,19)は、互いに連結されている、請求項1〜20のいずれか1項に記載の照明システム(7,17)。
- 請求項1〜21のいずれか1項に記載の照明システム(7,17)を有するディスプレイ装置(6)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07113993 | 2007-08-08 | ||
PCT/IB2008/053103 WO2009019646A2 (en) | 2007-08-08 | 2008-08-04 | Illumination system for illuminating a display device, and display device |
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JP2010536135A true JP2010536135A (ja) | 2010-11-25 |
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JP2010519550A Pending JP2010536135A (ja) | 2007-08-08 | 2008-08-04 | ディスプレイ装置を照明する照明システム及びディスプレイ装置 |
Country Status (7)
Country | Link |
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US (1) | US8246233B2 (ja) |
EP (1) | EP2176704A2 (ja) |
JP (1) | JP2010536135A (ja) |
KR (1) | KR20100063710A (ja) |
CN (1) | CN101828147B (ja) |
TW (1) | TW200923515A (ja) |
WO (1) | WO2009019646A2 (ja) |
Cited By (1)
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JP2011076999A (ja) * | 2009-10-02 | 2011-04-14 | Hitachi Consumer Electronics Co Ltd | バックライトユニットおよびそれを用いた映像表示装置 |
Families Citing this family (13)
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US8436962B2 (en) * | 2007-07-27 | 2013-05-07 | Sharp Kabushiki Kaisha | Illumination device and liquid crystal display device |
CN101680632B (zh) * | 2007-07-27 | 2012-01-18 | 夏普株式会社 | 照明装置、显示装置和导光板 |
US8414173B2 (en) * | 2007-07-27 | 2013-04-09 | Sharp Kabushiki Kaisha | Illumination device and display device |
EP2241800A4 (en) * | 2008-02-05 | 2011-01-26 | Sharp Kk | LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE |
KR20110006773A (ko) * | 2009-07-15 | 2011-01-21 | 삼성전자주식회사 | 디스플레이장치 및 텔레비전 |
US20120206938A1 (en) * | 2009-10-27 | 2012-08-16 | Koninklijke Philips Electronics N.V. | Light-guide for an illumination system and for a scanning backlight system |
US20120044675A1 (en) * | 2010-08-23 | 2012-02-23 | Energy Focus, Inc. | Elongated LED Lamp |
KR20120088121A (ko) * | 2011-01-31 | 2012-08-08 | 삼성전자주식회사 | 백라이트 어셈블리 및 이를 갖는 표시장치 |
JP2013073800A (ja) * | 2011-09-28 | 2013-04-22 | Canon Inc | 表示装置 |
US9389356B2 (en) * | 2013-10-09 | 2016-07-12 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight module and the corresponding liquid crystal display |
TWI528340B (zh) * | 2014-11-13 | 2016-04-01 | 綠點高新科技股份有限公司 | 圖案顯示裝置 |
CN107991805B (zh) * | 2017-11-14 | 2021-03-02 | 海信视像科技股份有限公司 | 一种侧入式背光模组及显示装置 |
CN110133914B (zh) * | 2019-05-29 | 2021-12-03 | 深圳市华星光电半导体显示技术有限公司 | 一种背光结构及其制作方法、显示装置 |
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2008
- 2008-08-04 US US12/671,716 patent/US8246233B2/en not_active Expired - Fee Related
- 2008-08-04 CN CN2008801023164A patent/CN101828147B/zh not_active Expired - Fee Related
- 2008-08-04 KR KR1020107005005A patent/KR20100063710A/ko not_active Application Discontinuation
- 2008-08-04 WO PCT/IB2008/053103 patent/WO2009019646A2/en active Application Filing
- 2008-08-04 EP EP08789528A patent/EP2176704A2/en not_active Withdrawn
- 2008-08-04 JP JP2010519550A patent/JP2010536135A/ja active Pending
- 2008-08-05 TW TW097129681A patent/TW200923515A/zh unknown
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WO2007020966A1 (ja) * | 2005-08-17 | 2007-02-22 | Fujifilm Corporation | 面状照明装置 |
Cited By (1)
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JP2011076999A (ja) * | 2009-10-02 | 2011-04-14 | Hitachi Consumer Electronics Co Ltd | バックライトユニットおよびそれを用いた映像表示装置 |
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TW200923515A (en) | 2009-06-01 |
US8246233B2 (en) | 2012-08-21 |
US20110221361A1 (en) | 2011-09-15 |
CN101828147A (zh) | 2010-09-08 |
WO2009019646A3 (en) | 2009-04-02 |
EP2176704A2 (en) | 2010-04-21 |
KR20100063710A (ko) | 2010-06-11 |
CN101828147B (zh) | 2012-12-05 |
WO2009019646A2 (en) | 2009-02-12 |
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