JP6542184B2 - 面状照明装置 - Google Patents
面状照明装置 Download PDFInfo
- Publication number
- JP6542184B2 JP6542184B2 JP2016234307A JP2016234307A JP6542184B2 JP 6542184 B2 JP6542184 B2 JP 6542184B2 JP 2016234307 A JP2016234307 A JP 2016234307A JP 2016234307 A JP2016234307 A JP 2016234307A JP 6542184 B2 JP6542184 B2 JP 6542184B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- guide plate
- light guide
- reflection
- illumination device
- 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.)
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- 238000005286 illumination Methods 0.000 claims description 43
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000004048 modification Effects 0.000 description 14
- 238000012986 modification Methods 0.000 description 14
- 238000009792 diffusion process Methods 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- 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
- G02B6/0018—Redirecting means on the surface of the light guide
-
- 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
-
- 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
-
- 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
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0485—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the physical interaction between a user and certain areas located on the lighting device, e.g. a touch sensor
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- 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
-
- 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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
-
- 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
- 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
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
-
- 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
- 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
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
Description
11 LED
14 連結部材
20 有効領域
40 導光板
40a 出射面
40b 反射面
40b−1 第1反射面
40b−2 第2反射面
40b−3 第3反射面
40c 入光側面
30a、30b、31 遮光シート
32 遮光領域
50 収納容器
50c 底面
50c−1 第1底面
50c−2 第2底面
50c−3 第3底面
70、71 境界部
90 タッチセンサ
91 シムテープ
Claims (13)
- 光を出射する出射面と、前記出射面の反対側の面であって光を反射する反射面とを有する導光板と、
前記出射面の有効領域を規定する遮光部材と、
前記導光板の入光側面に対向して配置される光源と
を備え、
前記反射面は、
前記遮光部材による遮光領域側の前記有効領域において、前記入光側面から離れるほど前記出射面側に近づく方向に傾斜する領域を含む第1反射面と、
前記第1反射面における前記遮光領域側の端部から前記出射面に沿う向きに伸びる第3反射面とを備える、
面状照明装置。 - 前記第1反射面は、
前記出射面側へ向かって凸状又は凹状に傾斜する、
請求項1に記載の面状照明装置。 - 前記反射面は、
前記第1反射面における前記有効領域側の端部から前記出射面に沿う向きに伸びる第2反射面を備える、
請求項1又は2に記載の面状照明装置。 - 前記第1反射面と前記第2反射面との境界部がR形状である、
請求項3に記載の面状照明装置。 - 前記第3反射面は、
前記出射面側とは反対側から連結部材によって前記光源に連結される、
請求項1〜4のいずれか1つに記載の面状照明装置。 - 前記第1反射面と前記第3反射面との境界部がR形状である、
請求項1〜5のいずれか1つに記載の面状照明装置。 - 前記導光板は
前記出射面に光路変更パターンが形成されている、
請求項1〜6のいずれか1つに記載の面状照明装置。 - 前記導光板は、
前記第3反射面に光路変更パターンが形成されている、
請求項1〜6のいずれか1つに記載の面状照明装置。 - 前記導光板は、
前記出射面に第1の光路変更パターンが形成され、
前記第3反射面に第2の光路変更パターンが形成されている、
請求項1〜6のいずれか1つに記載の面状照明装置。 - 前記導光板は、
前記第3反射面が前記有効領域まで伸びる、
請求項1〜9のいずれか1つに記載の面状照明装置。 - 前記導光板の出射面とは反対側の面に反射シートが配置され、
前記反射シートの前記入光側面側の端部は、前記遮光部材の前記入光側面側とは反対側の端部よりも、前記入光側面側に位置している、
請求項1〜10のいずれか1つに記載の面状照明装置。 - 前記光源と前記導光板とを収納する収納容器を備え、
前記収納容器の底面は、前記第1反射面と対向する部位が前記出射面側へ傾斜する、
請求項1〜11のいずれか1つに記載の面状照明装置。 - 前記光源と前記導光板とを収納し、前記出射面に沿う向きの底面を有する収納容器と、
前記収納容器の前記底面に配置され、ユーザのタッチ操作による静電容量の変化を検知するタッチセンサと、
前記タッチセンサにおける前記出射面側の面に配置され、前記導光板と前記タッチセンサとの接触を防止する緩衝部材と
を備え、
前記緩衝部材と前記導光板との距離は、前記遮光領域側から前記有効領域側へ向かって増加する、
請求項1〜11のいずれか1つに記載の面状照明装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016234307A JP6542184B2 (ja) | 2016-12-01 | 2016-12-01 | 面状照明装置 |
US15/823,697 US10175408B2 (en) | 2016-12-01 | 2017-11-28 | Planar illumination apparatus |
CN201711213929.2A CN108131593B (zh) | 2016-12-01 | 2017-11-28 | 面状照明装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016234307A JP6542184B2 (ja) | 2016-12-01 | 2016-12-01 | 面状照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018092768A JP2018092768A (ja) | 2018-06-14 |
JP6542184B2 true JP6542184B2 (ja) | 2019-07-10 |
Family
ID=62242969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016234307A Active JP6542184B2 (ja) | 2016-12-01 | 2016-12-01 | 面状照明装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10175408B2 (ja) |
JP (1) | JP6542184B2 (ja) |
CN (1) | CN108131593B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6684751B2 (ja) * | 2017-06-02 | 2020-04-22 | ミネベアミツミ株式会社 | 面状照明装置 |
TWI777690B (zh) * | 2021-07-26 | 2022-09-11 | 群光電能科技股份有限公司 | 觸控板模組 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10247413A (ja) * | 1997-03-03 | 1998-09-14 | Omron Corp | 面光源装置 |
TW200512515A (en) * | 2003-09-26 | 2005-04-01 | Samsung Electronics Co Ltd | Backlight assembly and liquid crystal display device having the same |
JP2008021420A (ja) * | 2006-07-10 | 2008-01-31 | Minebea Co Ltd | 面状照明装置 |
JP5410922B2 (ja) * | 2009-10-30 | 2014-02-05 | ミネベア株式会社 | 面状照明装置 |
JP2012043120A (ja) * | 2010-08-18 | 2012-03-01 | Shin Etsu Polymer Co Ltd | 電子機器用タッチパッド |
JP5609466B2 (ja) * | 2010-09-15 | 2014-10-22 | オムロン株式会社 | 面光源装置及び当該面光源装置に用いるフレーム |
KR20140018742A (ko) * | 2012-08-03 | 2014-02-13 | 삼성디스플레이 주식회사 | 백라이트 유닛 및 이를 갖는 표시 장치 |
JP5878239B2 (ja) * | 2012-09-13 | 2016-03-08 | 三菱電機株式会社 | 面光源装置およびそれを用いた表示装置 |
JP2014153439A (ja) * | 2013-02-05 | 2014-08-25 | Funai Electric Co Ltd | 表示装置 |
JP5784769B2 (ja) * | 2014-02-12 | 2015-09-24 | ミネベア株式会社 | 面状照明装置 |
CN107407834B (zh) * | 2015-03-16 | 2021-02-19 | 夏普株式会社 | 照明装置、显示装置以及电视接收装置 |
-
2016
- 2016-12-01 JP JP2016234307A patent/JP6542184B2/ja active Active
-
2017
- 2017-11-28 US US15/823,697 patent/US10175408B2/en active Active
- 2017-11-28 CN CN201711213929.2A patent/CN108131593B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN108131593A (zh) | 2018-06-08 |
CN108131593B (zh) | 2020-10-27 |
US10175408B2 (en) | 2019-01-08 |
US20180156958A1 (en) | 2018-06-07 |
JP2018092768A (ja) | 2018-06-14 |
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