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CN201773867U - 多层交错布点导光元件结构 - Google Patents

多层交错布点导光元件结构 Download PDF

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Publication number
CN201773867U
CN201773867U CN 201020254497 CN201020254497U CN201773867U CN 201773867 U CN201773867 U CN 201773867U CN 201020254497 CN201020254497 CN 201020254497 CN 201020254497 U CN201020254497 U CN 201020254497U CN 201773867 U CN201773867 U CN 201773867U
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CN
China
Prior art keywords
layer
light guide
optical waveguide
light
waveguide layer
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.)
Expired - Fee Related
Application number
CN 201020254497
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English (en)
Inventor
江佳靖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ambit Microsystems Shanghai Ltd
Hon Hai Precision Industry Co Ltd
Original Assignee
Ambit Microsystems Shanghai Ltd
Hon Hai Precision Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ambit Microsystems Shanghai Ltd, Hon Hai Precision Industry Co Ltd filed Critical Ambit Microsystems Shanghai Ltd
Priority to CN 201020254497 priority Critical patent/CN201773867U/zh
Priority to US12/862,785 priority patent/US8792172B2/en
Application granted granted Critical
Publication of CN201773867U publication Critical patent/CN201773867U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G02B6/0033—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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • 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
    • 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
    • G02B6/0073—Light emitting diode [LED]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

一种多层交错布点导光元件结构，包括第一导光层、第二导光层、扩散层及雾化层。第一导光层设有多个第一亮点，第二导光层设有多个第二亮点，第一导光层及第二导光层层叠设置以使第一亮点与第二亮点交错分布，以增强亮度。扩散层遮盖第二导光层，以有效抑制亮度过亮问题并有效改善整体均光度。雾化层遮盖扩散层，以雾化光源及解决网点可视问题。

Description

多层交错布点导光元件结构
技术领域
本实用新型涉及一种多层交错布点导光元件结构。
背景技术
当设计产品需要均匀亮光时，可行的方法是采用一组电致发光片(electroluminescence，简称EL)或者利用导光膜搭配发光二极管(Light EmittingDiode，简称LED)的方式。但前者成本高、寿命短且高噪音。所以，一般采用后者进行设计，但其技术缺点在于亮度及均光性难以两者兼得，并且无法改善网点可视的问题。因此，需提供一种多层交错布点导光元件结构，以同时达到高亮度及均光的效果，并且在出现网点可视的问题时，也可得到有效改善。
实用新型内容
有鉴于此，需提供一种多层交错布点导光元件结构，以达到高亮度及均光度效果，并可改善网点可视的问题。
本实用新型一种实施方式中的多层交错布点导光元件结构，包括层叠设置的第一导光层及第二导光层，所述第一导光层设有多个第一亮点，所述第二导光层设有多个第二亮点，所述第一亮点与所述第二亮点交错分布。所述多层交错布点导光元件结构还包括扩散层，所述扩散层遮盖所述第二导光层。
优选地，所述多层交错布点导光元件结构还包括遮盖所述扩散层的雾化层。
相较于现有技术，本实用新型的第一导光层及第二导光层层叠设置以使第一亮点及第二亮点交错分布，以增强亮度。遮盖于所述第二导光层的扩散层可以有效抑制亮度过亮的问题，以改善整体均光度。遮盖于所述扩散层的雾化层可以起到雾化光源并改善网点可视问题的作用。
附图说明
图1为本实用新型之第一导光层及第二导光层的排布结构。
图2为本实用新型之多层导光元件的层叠示意图。
图3为本实用新型之多层导光元件的分解示意图。
主要元件符号说明
第一导光层                10
第一亮点                  100
第二导光层                20
第二亮点                  200
扩散层                    30
雾化层                    40
光源                      50
具体实施方式
本实用新型之多层交错布点导光元件结构包括依次层叠布置的第一导光层10、第二导光层20、扩散层30及雾化层40。图1为本实用新型之第一导光层10及第二导光层20的排布结构。第一导光层10设有多个第一亮点100，第二导光层20设有多个第二亮点200。第二导光层20层叠于第一导光层10以使第一亮点100与第二亮点200交错分布。当光源50照射到第一导光层10之第一亮点100及及第二导光层20之第二亮点200时，这些交错分布的第一亮点100及第二亮点200可以使光源50之射入能量保持稳定，从而增强亮度。
图2为本实用新型之多层导光元件的层叠示意图及图3为本实用新型之多层导光元件的分解示意图。通过光学胶将扩散层30遮盖于第二导光层20。扩散层30为在基材上涂布扩散材料而制成。在本实施方式中，基材可以是高聚合物(polyethylene terephthalate，简称PET)或者聚碳酸酯(Polycarbonate，简称PC)。当光源50发出的光线经过第二导光层20射入扩散层30时，扩散层30可有效抑制亮度过亮问题，以有效改善整体均光度。雾化层40遮盖扩散层30，由聚酯树醴(Mylar)制成，具有雾化光源及解决网点可视问题等作用。
如图3所示，光源50发出的光线射入第一导光层10及第二导光层20上，受交错分布的第一亮点100及第二亮点200的作用，使这光亮度加强并射入扩散层30，由于扩散层30具有均光作用，因此，射出扩散层30的光线将均匀地射入雾化层40中。受雾化层40之雾化作用及雾化层40可以解决部分光线的网点可视问题，射出雾化层40之光线具有亮度高及均匀等特点。

Claims (2)

1.一种多层交错布点导光元件结构，包括层叠设置的第一导光层及第二导光层，所述第一导光层设有多个第一亮点，所述第二导光层设有多个第二亮点，所述第一亮点与所述第二亮点交错分布，其特征在于，所述多层交错布点导光元件结构还包括扩散层，所述扩散层遮盖所述第二导光层。
2.如权利要求1所述的多层交错布点导光元件结构，其特征在于，还包括遮盖所述扩散层的雾化层。
CN 201020254497 2010-07-12 2010-07-12 多层交错布点导光元件结构 Expired - Fee Related CN201773867U (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 201020254497 CN201773867U (zh) 2010-07-12 2010-07-12 多层交错布点导光元件结构
US12/862,785 US8792172B2 (en) 2010-07-12 2010-08-25 Light guide member

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI459424B (zh) * 2011-11-25 2014-11-01 Primax Electronics Ltd 發光鍵盤
EP3002508A1 (de) * 2014-09-30 2016-04-06 Evonik Röhm GmbH Lichtverbundsystem für die Verwendung in ultradünnen Leuchten und Back Light Units

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US5816677A (en) * 1905-03-01 1998-10-06 Canon Kabushiki Kaisha Backlight device for display apparatus
JPH07113718B2 (ja) * 1993-03-03 1995-12-06 日本電気株式会社 液晶パネル用バックライト装置
JP3625642B2 (ja) * 1998-03-26 2005-03-02 アルプス電気株式会社 液晶表示装置
JP4019886B2 (ja) * 2002-09-30 2007-12-12 オムロン株式会社 光学フィルム、面光源装置及び液晶表示装置
JP2004192828A (ja) * 2002-12-06 2004-07-08 Alps Electric Co Ltd 背面照明装置及び液晶表示装置
US20060250707A1 (en) * 2005-05-05 2006-11-09 3M Innovative Properties Company Optical film having a surface with rounded pyramidal structures
KR101234098B1 (ko) * 2006-03-21 2013-02-19 삼성디스플레이 주식회사 광학시트, 이를 갖는 백라이트 어셈블리 및 표시장치
TWI398017B (zh) * 2007-07-06 2013-06-01 Huga Optotech Inc 光電元件及其製作方法

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US8792172B2 (en) 2014-07-29

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