JP2020047455A - 面状照明装置 - Google Patents
面状照明装置 Download PDFInfo
- Publication number
- JP2020047455A JP2020047455A JP2018174511A JP2018174511A JP2020047455A JP 2020047455 A JP2020047455 A JP 2020047455A JP 2018174511 A JP2018174511 A JP 2018174511A JP 2018174511 A JP2018174511 A JP 2018174511A JP 2020047455 A JP2020047455 A JP 2020047455A
- Authority
- JP
- Japan
- Prior art keywords
- light
- guide plate
- holes
- light guide
- hole
- 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.)
- Granted
Links
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005282 brightening Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- 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
-
- 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
-
- 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
- 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
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- 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
-
- 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
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (6)
- 光源と、
前記光源からの光の入射方向と交差する方向において離間し、かつ板厚方向に貫通する複数の貫通孔が形成され、前記光源から一側端面である入射面に入射された光を一主面である出射面から出射する導光板と、
前記出射面のうち、隣り合う前記貫通孔同士の間の部位を覆うように配置される遮光シートと、
を備える面状照明装置。 - 前記貫通孔は、前記入射面とは反対側の側端面に隣接して設けられる
請求項1に記載の面状照明装置。 - 前記貫通孔は、円形状である
請求項1または2に記載の面状照明装置。 - 前記貫通孔の内壁を覆うように配置されるリングをさらに備える
請求項1〜3のいずれか一つに記載の面状照明装置。 - 前記導光板の前記出射面および前記出射面とは反対側の主面のうち少なくとも1つの面にはドットが形成され、
前記ドットが形成される面のうち、隣り合う前記貫通孔同士の間の部位には前記ドットが形成されていない
請求項1〜4のいずれか一つに記載の面状照明装置。 - 前記導光板には、3以上の前記貫通孔が一列に並んで形成される
請求項1〜5のいずれか一つに記載の面状照明装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018174511A JP6790035B2 (ja) | 2018-09-19 | 2018-09-19 | 面状照明装置 |
CN201910720468.0A CN110925626B9 (zh) | 2018-09-19 | 2019-08-06 | 面状照明装置 |
US16/570,116 US10996389B2 (en) | 2018-09-19 | 2019-09-13 | Planar lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018174511A JP6790035B2 (ja) | 2018-09-19 | 2018-09-19 | 面状照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020047455A true JP2020047455A (ja) | 2020-03-26 |
JP6790035B2 JP6790035B2 (ja) | 2020-11-25 |
Family
ID=69772469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018174511A Active JP6790035B2 (ja) | 2018-09-19 | 2018-09-19 | 面状照明装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10996389B2 (ja) |
JP (1) | JP6790035B2 (ja) |
CN (1) | CN110925626B9 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022153649A1 (ja) * | 2021-01-18 | 2022-07-21 | ミネベアミツミ株式会社 | 面状照明装置 |
JP7564308B2 (ja) | 2020-04-15 | 2024-10-08 | ミネベアミツミ株式会社 | 面状照明装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113253516A (zh) * | 2021-05-13 | 2021-08-13 | 京东方科技集团股份有限公司 | 背光模组和显示装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08315621A (ja) * | 1995-05-23 | 1996-11-29 | Sharp Corp | 面照明装置およびこれを利用した表示器 |
WO2015178299A1 (ja) * | 2014-05-23 | 2015-11-26 | シャープ株式会社 | 照明装置及び表示装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006294256A (ja) * | 2005-04-05 | 2006-10-26 | Mitsubishi Rayon Co Ltd | 面光源装置用導光体および面光源装置 |
JP4244942B2 (ja) * | 2005-03-08 | 2009-03-25 | セイコーエプソン株式会社 | 液晶装置、照明装置、および電子機器 |
JP2008130248A (ja) | 2006-11-16 | 2008-06-05 | Enplas Corp | 面光源装置及びこれを備えた表示装置 |
TW201122574A (en) * | 2009-12-23 | 2011-07-01 | Global Lighting Technology Inc | Light guide panel, backlight module and light guiding method |
US8534894B2 (en) * | 2009-12-23 | 2013-09-17 | Global Lighting Technology Inc. | Light guide plate, backlight module and method of guiding light |
TW201205002A (en) | 2010-07-26 | 2012-02-01 | Global Lighting Technology Inc | Back light module |
JP2015195110A (ja) | 2014-03-31 | 2015-11-05 | 凸版印刷株式会社 | エッジライト型面状照明装置および液晶表示装置 |
US10670917B2 (en) * | 2015-10-05 | 2020-06-02 | Sharp Kabushiki Kaisha | Lighting device and display device |
KR102392994B1 (ko) * | 2015-10-30 | 2022-04-29 | 엘지디스플레이 주식회사 | 백라이트 유닛과 이를 포함하는 액정 표시 장치 및 전자 장치 |
CN108427228B (zh) * | 2018-02-24 | 2021-03-16 | 武汉天马微电子有限公司 | 背光模组与显示装置 |
KR102634179B1 (ko) * | 2018-08-27 | 2024-02-06 | 엘지디스플레이 주식회사 | 디스플레이 장치 |
-
2018
- 2018-09-19 JP JP2018174511A patent/JP6790035B2/ja active Active
-
2019
- 2019-08-06 CN CN201910720468.0A patent/CN110925626B9/zh active Active
- 2019-09-13 US US16/570,116 patent/US10996389B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08315621A (ja) * | 1995-05-23 | 1996-11-29 | Sharp Corp | 面照明装置およびこれを利用した表示器 |
WO2015178299A1 (ja) * | 2014-05-23 | 2015-11-26 | シャープ株式会社 | 照明装置及び表示装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7564308B2 (ja) | 2020-04-15 | 2024-10-08 | ミネベアミツミ株式会社 | 面状照明装置 |
WO2022153649A1 (ja) * | 2021-01-18 | 2022-07-21 | ミネベアミツミ株式会社 | 面状照明装置 |
Also Published As
Publication number | Publication date |
---|---|
CN110925626A (zh) | 2020-03-27 |
CN110925626B9 (zh) | 2022-02-11 |
US20200088930A1 (en) | 2020-03-19 |
CN110925626B (zh) | 2022-01-04 |
JP6790035B2 (ja) | 2020-11-25 |
US10996389B2 (en) | 2021-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6487885B2 (ja) | 面状照明装置 | |
CN110925626B (zh) | 面状照明装置 | |
JP2002231037A (ja) | 点状光源を具える照明装置 | |
JP2014038306A (ja) | 表示装置 | |
JP2018006322A (ja) | 面状照明装置 | |
JP2020013714A (ja) | 面状照明装置 | |
JP2015149119A (ja) | 照明装置及び表示装置 | |
TW201539087A (zh) | 光學組件與背光模組 | |
JP2017120740A (ja) | 導光板、面光源装置、表示装置、及び電子機器 | |
CN108870197B (zh) | 面状照明装置 | |
JP6490136B2 (ja) | 面状照明装置 | |
JP2020021640A (ja) | 面状照明装置 | |
US20170343724A1 (en) | Light emitting device, display unit, and illumination unit | |
JP7197351B2 (ja) | 表示装置、照明装置、導光部材及び導光構造 | |
CN112601911A (zh) | 面状照明装置 | |
JP7077205B2 (ja) | 面状照明装置 | |
US9645300B2 (en) | Lighting device | |
JP6542184B2 (ja) | 面状照明装置 | |
JP6298986B2 (ja) | 照明装置 | |
JP2014029798A (ja) | 照明装置、及び情報機器 | |
JP2018194566A (ja) | 拡散レンズ及び発光装置 | |
JP6498258B1 (ja) | 面状照明装置 | |
JP6277416B2 (ja) | 照明装置 | |
JP2018107024A (ja) | 照明モジュール | |
JP2007273133A (ja) | 面発光装置およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20191122 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200827 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200901 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200918 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20201027 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20201104 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6790035 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |