JP2013041077A - 表示装置 - Google Patents
表示装置 Download PDFInfo
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- JP2013041077A JP2013041077A JP2011177436A JP2011177436A JP2013041077A JP 2013041077 A JP2013041077 A JP 2013041077A JP 2011177436 A JP2011177436 A JP 2011177436A JP 2011177436 A JP2011177436 A JP 2011177436A JP 2013041077 A JP2013041077 A JP 2013041077A
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- Prior art keywords
- light
- guide plate
- display device
- adhesive sheet
- wiring board
- Prior art date
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- 238000009792 diffusion process Methods 0.000 claims abstract description 40
- 239000000853 adhesive Substances 0.000 claims abstract description 38
- 230000001070 adhesive effect Effects 0.000 claims abstract description 38
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 15
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- G02B6/0023—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
-
- 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
-
- 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
- G02B6/0051—Diffusing 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
- G02B6/005—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
- G02B6/0033—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
- 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
-
- 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
- G02F1/133612—Electrical details
Abstract
【解決手段】バックライト24は、光源26を搭載した配線基板28と、光源26の光を端面から入射して表面32から出射する導光板30と、配線基板28を導光板30の表面32の端部に貼り付ける遮光粘着シート52と、導光板30の表面32に重ねられた光拡散シート38を含む。導光板30の表面32は、面光源としての有効領域34と、光が入射する端面から有効領域34までの入光領域36と、を含む。配線基板28及び遮光粘着シート52は、入光領域36に位置する部分を有する。光拡散シート38は、有効領域34から入光領域36にわたって配置され、入光領域36では少なくとも遮光粘着シート52に重ねられる。遮光粘着シート52よりも有効領域34に近い側で、入光領域36は、光拡散シート38によって隙間なく覆われている。
【選択図】図1
Description
Claims (8)
- 表示パネルと、
前記表示パネルの面光源として使用されるバックライトと、
を有し、
前記バックライトは、前記面光源よりも狭い発光領域を有する光源と、前記光源を搭載した配線基板と、前記光源の光を端面から入射して表面から出射する導光板と、前記配線基板を前記導光板の前記表面の端部に貼り付ける遮光粘着シートと、前記導光板の前記表面に重ねられた光拡散シートと、を含み、
前記導光板の前記表面は、前記面光源としての有効領域と、前記光が入射する前記端面から前記有効領域までの入光領域と、を含み、
前記配線基板及び前記遮光粘着シートは、前記入光領域に位置する部分を有し、
前記光拡散シートは、前記有効領域から前記入光領域にわたって配置され、前記入光領域では少なくとも端部が前記遮光粘着シートに重ねられ、
前記遮光粘着シートよりも前記有効領域に近い側で、前記入光領域は、前記光拡散シートによって隙間なく覆われていることを特徴とする表示装置。 - 請求項1に記載された表示装置において、
前記遮光粘着シートの少なくとも一部は、前記配線基板と前記導光板の間に介在することを特徴とする表示装置。 - 請求項1に記載された表示装置において、
前記遮光粘着シートは、前記配線基板の前記導光板とは反対を向く面上から前記導光板の前記表面上にわたって粘着することを特徴とする表示装置。 - 請求項2又は3に記載された表示装置において、
前記遮光粘着シートは、前記配線基板との重複部を有し、前記重複部から前記有効領域の方向にはみ出し、前記配線基板の外側で前記光拡散シートに重なることを特徴とする表示装置。 - 請求項4に記載された表示装置において、
前記導光板の上に配置された前記光拡散シートの上に前記遮光粘着シートが重なることを特徴とする表示装置。 - 請求項4に記載された表示装置において、
前記導光板の上に配置された前記遮光粘着シートの上に前記光拡散シートが重なることを特徴とする表示装置。 - 請求項4から6のいずれか1項に記載された表示装置において、
前記光拡散シートは、前記遮光粘着シートとの重複を避けた非重複部を含み、
前記重複部及び前記非重複部の境目をまたぐように遮光膜が形成されていることを特徴とする表示装置。 - 請求項2に記載された表示装置において、
前記光拡散シートは、前記配線基板の前記導光板とは反対を向く面上に至るように配置され、前記配線基板を介して前記遮光粘着シートに重なることを特徴とする表示装置。
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011177436A JP5663434B2 (ja) | 2011-08-15 | 2011-08-15 | 表示装置 |
US13/572,757 US8864361B2 (en) | 2011-08-15 | 2012-08-13 | Display device |
CN201210294528.5A CN102955291B (zh) | 2011-08-15 | 2012-08-14 | 显示装置 |
US14/499,509 US9568667B2 (en) | 2011-08-15 | 2014-09-29 | Display device |
US15/392,019 US9810827B2 (en) | 2011-08-15 | 2016-12-28 | Display device |
US15/725,602 US10067282B2 (en) | 2011-08-15 | 2017-10-05 | Display device |
US16/053,041 US10281636B2 (en) | 2011-08-15 | 2018-08-02 | Back light |
US16/360,068 US10459143B2 (en) | 2011-08-15 | 2019-03-21 | Backlight |
US16/573,264 US10705277B2 (en) | 2011-08-15 | 2019-09-17 | Display device |
US16/892,392 US10962699B2 (en) | 2011-08-15 | 2020-06-04 | Display device |
US17/183,959 US11327214B2 (en) | 2011-08-15 | 2021-02-24 | Display device including LCD with substrate having extended portion, and backlight with wiring board overlapping the extended portion |
US17/719,476 US11726251B2 (en) | 2011-08-15 | 2022-04-13 | Display device having LCD with separate polarizing plates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011177436A JP5663434B2 (ja) | 2011-08-15 | 2011-08-15 | 表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013041077A true JP2013041077A (ja) | 2013-02-28 |
JP5663434B2 JP5663434B2 (ja) | 2015-02-04 |
Family
ID=47712536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011177436A Active JP5663434B2 (ja) | 2011-08-15 | 2011-08-15 | 表示装置 |
Country Status (3)
Country | Link |
---|---|
US (10) | US8864361B2 (ja) |
JP (1) | JP5663434B2 (ja) |
CN (1) | CN102955291B (ja) |
Cited By (7)
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JP2014178368A (ja) * | 2013-03-13 | 2014-09-25 | Japan Display Inc | 表示モジュール |
WO2014188748A1 (ja) * | 2013-05-24 | 2014-11-27 | シャープ株式会社 | 照明装置及び表示装置 |
JP2015118758A (ja) * | 2013-12-17 | 2015-06-25 | シチズンホールディングス株式会社 | Ledバックライト |
WO2017057219A1 (ja) * | 2015-09-30 | 2017-04-06 | シャープ株式会社 | 照明装置及び表示装置 |
KR20170084302A (ko) * | 2014-11-17 | 2017-07-19 | 센젠 차이나 스타 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 | 백라이트 모듈 및 디스플레이 장치 |
JP2017537345A (ja) * | 2014-11-17 | 2017-12-14 | 深▲セン▼市華星光電技術有限公司 | 表示装置 |
KR20190045545A (ko) * | 2017-10-24 | 2019-05-03 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 그를 이용한 액정 표시 장치 |
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US9568667B2 (en) | 2017-02-14 |
US8864361B2 (en) | 2014-10-21 |
US20220236471A1 (en) | 2022-07-28 |
US10459143B2 (en) | 2019-10-29 |
US11327214B2 (en) | 2022-05-10 |
CN102955291B (zh) | 2015-12-02 |
JP5663434B2 (ja) | 2015-02-04 |
US20200012033A1 (en) | 2020-01-09 |
US10962699B2 (en) | 2021-03-30 |
US20130044511A1 (en) | 2013-02-21 |
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