JP7203366B2 - 表示装置 - Google Patents
表示装置 Download PDFInfo
- Publication number
- JP7203366B2 JP7203366B2 JP2017050678A JP2017050678A JP7203366B2 JP 7203366 B2 JP7203366 B2 JP 7203366B2 JP 2017050678 A JP2017050678 A JP 2017050678A JP 2017050678 A JP2017050678 A JP 2017050678A JP 7203366 B2 JP7203366 B2 JP 7203366B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- plate
- guide plate
- shielding
- light guide
- 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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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
- G02B6/0033—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
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
- F21V1/14—Covers for frames; Frameless shades
- F21V1/146—Frameless shades
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
-
- 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
-
- 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
- F21V7/05—Optical design plane
-
- 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
- G02B6/0033—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
- G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts 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
- G02B6/0066—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
-
- 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
- G02B6/003—Lens or lenticular sheet or layer
Description
端面から入射した光を伝搬し、反射面に設けられたプリズムで反射させ、前記反射面と向かい合う出射面から出射させる導光板と、
前記導光板の端面に光を入射させる光源と、
前記導光板の出射面側に設けられるとともに、その出射面から出射する光を透過させる透光部と、前記透光部よりも光透過率が低い遮光部とを有する隠蔽板と、
各波長において前記透光部の光反射率よりも前記遮光部の光反射率に近い光反射率を有するとともに、前記導光板の出射面に垂直な方向から見て前記隠蔽板の透光部に重なるように、前記導光板の反射面側に設けられた着色板と、を備え、
前記光源は、前記導光板における互いに直交する2つの端面に光を入射させて、光が入射する端面によってそれぞれ異なる情報が表示されるように、少なくとも2箇所に設けられており、
前記導光板の出射面に垂直な方向から見て、前記着色板の端縁の全周が前記隠蔽板の前記遮光部に重なっており、
前記隠蔽板の透光部の光透過率は、1%より大きく50%未満であることを特徴とする。
図1A~1Eは、本発明の実施の形態1に係る表示装置を示す。図1Aは表示装置の正面図を示し、図1Bは図1AのX断面図を示し、図1Cは図1Bでの光の進行の状態を示し、図1Dは図1AのY断面図を示し、図1Eは図1Dでの光の進行の状態を示す。
図7A~7Eは本発明の実施の形態2に係る表示装置を示す。図7Aは本発明の表示装置の正面図を示し、図7Bは着色板18の正面図を示し、図7Cは、図7AのX断面図を示し、図7Dおよび図7Eは、図7Cでの光の進行の状態を示す。なお、図7Aにおいて、着色板18の図示が省略されている。実施の形態1と同じ構成については、詳細な説明を省略する。
2 光源
3 光学系
4 プリズム
5 光源
6 光学系
7 プリズム
8 隠蔽板
81 透光層
82 遮光層
8a 透光部
8b 遮光部
9 着色板
18 着色板
20 透光領域
21 光源
Claims (4)
- 端面から入射した光を伝搬し、反射面に設けられたプリズムで反射させ、前記反射面と向かい合う出射面から出射させる導光板と、
前記導光板の端面に光を入射させる光源と、
前記導光板の出射面側に設けられるとともに、その出射面から出射する光を透過させる透光部と、前記透光部よりも光透過率が低い遮光部とを有する隠蔽板と、
各波長において前記透光部の光反射率よりも前記遮光部の光反射率に近い光反射率を有するとともに、前記導光板の出射面に垂直な方向から見て前記隠蔽板の透光部に重なるように、前記導光板の反射面側に設けられた着色板と、を備え、
前記光源は、前記導光板における互いに直交する2つの端面に光を入射させて、光が入射する端面によってそれぞれ異なる情報が表示されるように、少なくとも2箇所に設けられており、
前記導光板の出射面に垂直な方向から見て、前記着色板の端縁の全周が前記隠蔽板の前記遮光部に重なっており、
前記隠蔽板の透光部の光透過率は、1%より大きく50%未満である、
ことを特徴とする表示装置。 - 前記光源は、前記導光板における互いに直交する2つの端面のいずれかに対向する別の1つの端面または前記2つの端面のそれぞれに対向する別の2つの端面に光を入射させるように設けられていることを特徴とする請求項1記載の表示装置。
- 前記導光板とで前記着色板を挟むように設けられた他の光源をさらに備え、
前記着色板には、他の領域の光透過率よりも高い光透過率を有する透光領域が設けられている
ことを特徴とする請求項1または2記載の表示装置。 - 前記隠蔽板の遮光部の光透過率は、1%以下であることを特徴とする請求項1~3の何れか1項に記載の表示装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017050678A JP7203366B2 (ja) | 2017-03-16 | 2017-03-16 | 表示装置 |
EP18154032.9A EP3376098B1 (en) | 2017-03-16 | 2018-01-30 | Display apparatus |
US15/890,942 US10338296B2 (en) | 2017-03-16 | 2018-02-07 | Display apparatus |
CN201810153329.XA CN108626618A (zh) | 2017-03-16 | 2018-02-14 | 显示装置 |
JP2021106211A JP2021176014A (ja) | 2017-03-16 | 2021-06-28 | 表示装置 |
JP2023063116A JP2023086776A (ja) | 2017-03-16 | 2023-04-10 | 表示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017050678A JP7203366B2 (ja) | 2017-03-16 | 2017-03-16 | 表示装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021106211A Division JP2021176014A (ja) | 2017-03-16 | 2021-06-28 | 表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018155819A JP2018155819A (ja) | 2018-10-04 |
JP7203366B2 true JP7203366B2 (ja) | 2023-01-13 |
Family
ID=61094269
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017050678A Active JP7203366B2 (ja) | 2017-03-16 | 2017-03-16 | 表示装置 |
JP2021106211A Pending JP2021176014A (ja) | 2017-03-16 | 2021-06-28 | 表示装置 |
JP2023063116A Pending JP2023086776A (ja) | 2017-03-16 | 2023-04-10 | 表示装置 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
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JP2021106211A Pending JP2021176014A (ja) | 2017-03-16 | 2021-06-28 | 表示装置 |
JP2023063116A Pending JP2023086776A (ja) | 2017-03-16 | 2023-04-10 | 表示装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10338296B2 (ja) |
EP (1) | EP3376098B1 (ja) |
JP (3) | JP7203366B2 (ja) |
CN (1) | CN108626618A (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7203366B2 (ja) | 2017-03-16 | 2023-01-13 | パナソニックIpマネジメント株式会社 | 表示装置 |
CN114096410A (zh) * | 2019-07-01 | 2022-02-25 | 阿尔卑斯阿尔派株式会社 | 装饰片及静电输入装置 |
DE102022210250B4 (de) * | 2022-09-28 | 2024-04-25 | Magna Exteriors Gmbh | Beleuchtungssystem für ein Außenverkleidungsteil eines Kraftfahrzeugs |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008145657A (ja) | 2006-12-08 | 2008-06-26 | Rohm Co Ltd | 表示装置 |
JP2021176014A (ja) | 2017-03-16 | 2021-11-04 | パナソニックIpマネジメント株式会社 | 表示装置 |
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DE60030541T2 (de) | 2000-01-06 | 2007-08-30 | Koninklijke Philips Electronics N.V. | Leuchte und leuchttafeln |
US6930737B2 (en) * | 2001-01-16 | 2005-08-16 | Visteon Global Technologies, Inc. | LED backlighting system |
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JP2003045214A (ja) * | 2001-07-27 | 2003-02-14 | Airesu Denshi Kogyo Kk | 発光装置 |
JP2006075362A (ja) | 2004-09-09 | 2006-03-23 | Omron Corp | 表示装置 |
JP2007206546A (ja) * | 2006-02-03 | 2007-08-16 | Citizen Electronics Co Ltd | バックライト |
CN101449309A (zh) * | 2006-04-20 | 2009-06-03 | 株式会社藤仓 | 显示装置及其制造方法、图案显示方法、以及遮蔽装置以及遮蔽方法 |
JP2008070697A (ja) | 2006-09-15 | 2008-03-27 | Toyoda Gosei Co Ltd | 表示装置 |
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JP2009204885A (ja) | 2008-02-28 | 2009-09-10 | Omron Corp | 表示装置 |
GB2464915A (en) * | 2008-09-23 | 2010-05-05 | Egush Ltd | Lighting device |
TWM354623U (en) * | 2008-10-27 | 2009-04-11 | Safety Traffic Equipment Co Ltd | Improved structure for LED road mark indication board |
US20120257119A1 (en) * | 2009-12-23 | 2012-10-11 | Sharp Kabushiki Kaisha | Lighting device, display device and television receiver |
JP5651840B2 (ja) * | 2010-07-20 | 2015-01-14 | 株式会社浅間製作所 | 図柄表示装置 |
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JP5809913B2 (ja) * | 2011-10-04 | 2015-11-11 | 株式会社フジクラ | 表示装置 |
EP2960916A4 (en) * | 2013-02-22 | 2016-08-24 | Alps Electric Co Ltd | DISPLAY DEVICE |
JP5621015B1 (ja) * | 2013-05-31 | 2014-11-05 | シャープ株式会社 | 導光板、照明装置、表示装置、及びテレビ受信装置 |
US10317610B2 (en) * | 2013-12-18 | 2019-06-11 | Sharp Kabushiki Kaisha | Illumination device and display device |
US9297948B1 (en) * | 2015-01-16 | 2016-03-29 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Liquid crystal panel and backlight module positioning adhesive structure and display device |
JP6467707B2 (ja) | 2015-03-24 | 2019-02-13 | パナソニックIpマネジメント株式会社 | 表示装置 |
EP3118843B1 (en) * | 2015-07-17 | 2020-04-08 | Goodrich Lighting Systems GmbH | Aircraft interior light unit and method of operating an aircraft interior light unit |
JP6532059B2 (ja) | 2015-08-05 | 2019-06-19 | アルプスアルパイン株式会社 | 照光表示装置の製造方法 |
-
2017
- 2017-03-16 JP JP2017050678A patent/JP7203366B2/ja active Active
-
2018
- 2018-01-30 EP EP18154032.9A patent/EP3376098B1/en active Active
- 2018-02-07 US US15/890,942 patent/US10338296B2/en active Active
- 2018-02-14 CN CN201810153329.XA patent/CN108626618A/zh active Pending
-
2021
- 2021-06-28 JP JP2021106211A patent/JP2021176014A/ja active Pending
-
2023
- 2023-04-10 JP JP2023063116A patent/JP2023086776A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008145657A (ja) | 2006-12-08 | 2008-06-26 | Rohm Co Ltd | 表示装置 |
JP2021176014A (ja) | 2017-03-16 | 2021-11-04 | パナソニックIpマネジメント株式会社 | 表示装置 |
Also Published As
Publication number | Publication date |
---|---|
CN108626618A (zh) | 2018-10-09 |
EP3376098B1 (en) | 2024-04-17 |
JP2021176014A (ja) | 2021-11-04 |
JP2023086776A (ja) | 2023-06-22 |
US20180267227A1 (en) | 2018-09-20 |
EP3376098A1 (en) | 2018-09-19 |
US10338296B2 (en) | 2019-07-02 |
JP2018155819A (ja) | 2018-10-04 |
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