JP6709768B2 - 面状照明装置 - Google Patents
面状照明装置 Download PDFInfo
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- JP6709768B2 JP6709768B2 JP2017187834A JP2017187834A JP6709768B2 JP 6709768 B2 JP6709768 B2 JP 6709768B2 JP 2017187834 A JP2017187834 A JP 2017187834A JP 2017187834 A JP2017187834 A JP 2017187834A JP 6709768 B2 JP6709768 B2 JP 6709768B2
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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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
Description
まずは、面状照明装置10の概要について、図1を用いて説明する。図1は、実施形態に係る面状照明装置10の外観の一例を示す上面図である。図1に示すように、実施形態に係る面状照明装置10は、遮光シート30で覆われていない出射領域である有効エリア40から光を出射する。すなわち、遮光シート30により、有効エリア40が規定される。
つづいて、面状照明装置10の詳細な構成について、図2〜図5を参照しながら説明する。図2は、実施形態に係る面状照明装置10の構成を説明するための断面斜視図である。なお、図2では、FPC12、はんだ13、LED14、導光板15および第2固定部材17以外の図示を省略している。
次に、図6〜図9を参照しながら、実施形態の各種変形例について説明する。図6は、実施形態の変形例1に係る面状照明装置10の断面図であり、実施形態の図5に対応する図面である。
Claims (14)
- 側面と主面とを有し、前記側面から入射される光を前記主面から出射する導光板と、
前記導光板の前記主面と略平行に配置される基板と、
前記基板上において前記導光板の前記側面に対向して設けられ、前記側面に入射される光を発する発光面を有する光源と、
前記導光板と前記基板との間に配置され、前記導光板を前記基板に固定する第1固定部材と、
前記導光板に対して前記第1固定部材とは反対側に配置され、前記導光板を前記光源に固定する第2固定部材と、
を備え、
前記第2固定部材は、前記光源と前記導光板とに接着される接着層を有し、
前記接着層は、前記光源の前記発光面に対して、当該発光面から光が出射される側を除いた領域に設けられる、面状照明装置。 - 前記第2固定部材は、前記主面側に配置される、請求項1に記載の面状照明装置。
- 前記光源は、前記基板上に複数配列され、
前記接着層は、隣接する光源間において、一方の光源の前記発光面の端部から、当該端部に隣接する、他方の光源の前記発光面の端部に跨って設けられる、
請求項1または2に記載の面状照明装置。 - 前記接着層は、複数の前記光源の実装面とは反対側の面を一体で覆う基部と、前記光源の前記発光面に対して当該発光面から光が出射される側を除いた領域に設けられる複数の突出部とを有し、
前記基部には前記複数の突出部が櫛歯状に形成されている、
請求項1〜3のいずれか一つに記載の面状照明装置。 - 前記光源の前記発光面に対して、当該発光面から光が出射される側を覆うように配置される遮光部材をさらに備える、
請求項1〜4のいずれか一つに記載の面状照明装置。 - 前記遮光部材は、前記光源の少なくとも一部を覆うように配置される、
請求項5に記載の面状照明装置。 - 前記主面および前記光源の少なくとも一部を覆うように配置される拡散シートをさらに備え、
前記遮光部材は、前記拡散シートに設けられる、
請求項5または6に記載の面状照明装置。 - 前記第2固定部材は、基材と前記接着層とを有し、
前記遮光部材は、前記基材において前記接着層とは反対側の面に設けられる、
請求項5または6に記載の面状照明装置。 - 前記第2固定部材は、前記遮光部材と前記接着層とを有し、
前記接着層は、前記遮光部材において前記導光板側の面に設けられる、
請求項5または6に記載の面状照明装置。 - 前記主面を覆うように配置されるプリズムシートをさらに備え、
前記プリズムシートの端部は、前記遮光部材に重なっている、
請求項5〜9のいずれか一つに記載の面状照明装置。 - 前記第2固定部材は、基材と前記接着層とを有し、
前記基材は、前記光源の前記発光面に対して当該発光面から光が出射される側を除いた領域に設けられる複数の突出部と、複数の前記突出部の間に形成される切欠部とを有し、
複数の前記突出部と前記切欠部とは櫛歯状に形成されている、
請求項1〜10のいずれか1つに記載の面状照明装置。 - 前記光源の前記発光面に対して、当該発光面から光が出射される側を覆うように配置される遮光部材をさらに備え、
前記遮光部材は、前記切欠部を覆うように設けられている、
請求項11に記載の面状照明装置。 - 前記第1固定部材は、前記光源の前記発光面に対して、当該発光面から光が出射される側を除いた領域に設けられる、請求項1〜12のいずれか1つに記載の面状照明装置。
- 前記基板は、前記主面とは反対側の面に対向して設けられる、請求項1〜13のいずれか1つに記載の面状照明装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017187834A JP6709768B2 (ja) | 2017-09-28 | 2017-09-28 | 面状照明装置 |
CN201811066955.1A CN109578852A (zh) | 2017-09-28 | 2018-09-13 | 面状照明装置 |
CN201821495798.1U CN208719988U (zh) | 2017-09-28 | 2018-09-13 | 面状照明装置 |
US16/137,772 US11042061B2 (en) | 2017-09-28 | 2018-09-21 | Planar illumination device |
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JP2017187834A JP6709768B2 (ja) | 2017-09-28 | 2017-09-28 | 面状照明装置 |
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JP2019061934A JP2019061934A (ja) | 2019-04-18 |
JP6709768B2 true JP6709768B2 (ja) | 2020-06-17 |
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US (1) | US11042061B2 (ja) |
JP (1) | JP6709768B2 (ja) |
CN (2) | CN208719988U (ja) |
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JP6971802B2 (ja) | 2017-11-24 | 2021-11-24 | 株式会社ジャパンディスプレイ | バックライト装置、および液晶表示装置 |
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JP3864862B2 (ja) * | 2002-04-04 | 2007-01-10 | セイコーエプソン株式会社 | 電気光学装置及び電子機器 |
JP2006040755A (ja) | 2004-07-28 | 2006-02-09 | Sharp Corp | 面状照明装置 |
TWI368075B (en) * | 2008-01-14 | 2012-07-11 | Chimei Innolux Corp | Side type backlight module, liquid crystal display and assembling method thereof |
JP5402428B2 (ja) * | 2009-09-09 | 2014-01-29 | オムロン株式会社 | 面光源装置及び液晶表示装置 |
JP5777443B2 (ja) * | 2011-08-05 | 2015-09-09 | ミネベア株式会社 | 面状照明装置 |
WO2014021304A1 (ja) * | 2012-08-03 | 2014-02-06 | シャープ株式会社 | 照明装置、表示装置、及びテレビ受信装置 |
US9097825B1 (en) * | 2013-06-24 | 2015-08-04 | Amazon Technologies, Inc. | White tape in a front light display component stack |
JP6166612B2 (ja) * | 2013-07-31 | 2017-07-19 | ミネベアミツミ株式会社 | 面状照明装置 |
US9690036B1 (en) * | 2013-09-30 | 2017-06-27 | Amazon Technologies, Inc. | Controlling display lighting color and uniformity |
JP6199761B2 (ja) | 2014-01-31 | 2017-09-20 | ミネベアミツミ株式会社 | 面状照明装置 |
KR20150092812A (ko) * | 2014-02-05 | 2015-08-17 | 삼성디스플레이 주식회사 | 표시 장치 |
JP6303646B2 (ja) * | 2014-03-13 | 2018-04-04 | オムロン株式会社 | 面光源装置 |
US10209428B2 (en) * | 2014-12-26 | 2019-02-19 | Sharp Kabushiki Kaisha | Lighting device and display device |
JP6246748B2 (ja) * | 2015-01-28 | 2017-12-13 | ミネベアミツミ株式会社 | 面状照明装置 |
US10107955B2 (en) * | 2015-04-27 | 2018-10-23 | Boe Technology Group Co., Ltd. | Display backlight module having double-side adhesive blocks |
CN107683434A (zh) * | 2015-06-19 | 2018-02-09 | 夏普株式会社 | 照明装置和显示装置 |
WO2017073471A1 (ja) * | 2015-10-30 | 2017-05-04 | シャープ株式会社 | 照明装置及び表示装置 |
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US10488582B2 (en) * | 2016-06-24 | 2019-11-26 | Minebea Mitsumi Inc. | Planar illumination apparatus |
JP6408516B2 (ja) * | 2016-07-01 | 2018-10-17 | ミネベアミツミ株式会社 | 面状照明装置及び基板 |
JP6689731B2 (ja) * | 2016-11-28 | 2020-04-28 | 株式会社ジャパンディスプレイ | バックライト装置およびこれを備える液晶表示装置 |
KR102546055B1 (ko) * | 2016-11-30 | 2023-06-22 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 포함하는 액정표시장치 |
JP6779805B2 (ja) * | 2017-02-06 | 2020-11-04 | 株式会社ジャパンディスプレイ | バックライト装置およびこれを備える液晶表示装置 |
CN109404774A (zh) * | 2017-08-15 | 2019-03-01 | 元太科技工业股份有限公司 | 防水发光模块及显示装置 |
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2017
- 2017-09-28 JP JP2017187834A patent/JP6709768B2/ja active Active
-
2018
- 2018-09-13 CN CN201821495798.1U patent/CN208719988U/zh active Active
- 2018-09-13 CN CN201811066955.1A patent/CN109578852A/zh active Pending
- 2018-09-21 US US16/137,772 patent/US11042061B2/en active Active
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Publication number | Publication date |
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JP2019061934A (ja) | 2019-04-18 |
US11042061B2 (en) | 2021-06-22 |
US20190094614A1 (en) | 2019-03-28 |
CN109578852A (zh) | 2019-04-05 |
CN208719988U (zh) | 2019-04-09 |
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