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TW201405212A - 背光模組及環形導光元件 - Google Patents

背光模組及環形導光元件 Download PDF

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Publication number
TW201405212A
TW201405212A TW101125696A TW101125696A TW201405212A TW 201405212 A TW201405212 A TW 201405212A TW 101125696 A TW101125696 A TW 101125696A TW 101125696 A TW101125696 A TW 101125696A TW 201405212 A TW201405212 A TW 201405212A
Authority
TW
Taiwan
Prior art keywords
light incident
annular body
light
backlight module
annular
Prior art date
Application number
TW101125696A
Other languages
English (en)
Inventor
Li-Ying Wanghe
Original Assignee
Hon Hai Prec Ind 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 Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW101125696A priority Critical patent/TW201405212A/zh
Priority to US13/686,958 priority patent/US20140022820A1/en
Publication of TW201405212A publication Critical patent/TW201405212A/zh

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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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • 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
    • 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
    • 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
    • G02B6/002—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 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

本發明涉及一種背光模組，其包括一環形導光元件以及一光源。該環形導光元件包括一環形本體以及一自該環形本體向外突出延伸的入光部。該入光部包括一自該環形本體的外邊緣平滑延伸出的圓弧面以及一入光面，該入光面連接該圓弧面與該環形本體的外邊緣。該光源對準該入光面。

Description

背光模組及環形導光元件
本發明涉及背光模組及導光元件，尤其涉及一種環形導光元件及使用該環形導光元件的背光模組。
背光模組作為一種光源模組，常為儀表、顯示裝置等電子裝置照明。一種典型的背光模組包括一光源及一導光元件，該導光元件為一環形體，該光源位於該環形體側邊。該背光模組缺陷在於大部分光易從環形體向外漏出，而環形體的光量不足，光線分佈不均勻。
有鑒於此，有必要提供一種可以克服上述問題的背光模組及環形導光元件。
一種背光模組，其包括一環形導光元件以及一光源。該環形導光元件包括一環形本體以及一自該環形本體向外突出延伸的入光部。該入光部包括一自該環形本體的外邊緣平滑延伸出的圓弧面以及一入光面，該入光面連接該圓弧面與該環形本體的外邊緣。該光源對準該入光面。
一種環形導光元件，其包括一環形本體以及一自該環形本體向外突出延伸的入光部。該入光部包括一自該環形本體的外邊緣平滑延伸出的圓弧面以及一入光面，該入光面連接該圓弧面與該環形本體的外邊緣。
相對於先前技術，本發明提供之環形導光元件具有一突出延伸的入光部，該入光部自該環形本體外邊緣平滑延伸出，光線經該入光部可以較均勻傳遞至整個環形本體。
請參閱圖1，本發明實施例提供之背光模組100包括一光源10及一環形導光元件20。
該光源10可以為單個或多個燈管或發光二極體（LED）。該環形導光元件20包括一環形本體22以及一自該環形本體22向外突出延伸的入光部24。
該環形本體22為一中空圓環形。該入光部24包括一自該環形本體22的外邊緣平滑延伸出的圓弧面242，以及一入光面246。該入光面246位於該圓弧面242的端部且與該環形本體22的外邊緣連接。
該入光部24與該環形本體22無縫連接，且與該環形本體22一體成型。
該圓弧面242自該環形本體22的外邊緣逐漸遠離該環形本體22，即該入光部24自該環形本體22的外邊緣向外延伸的同時逐漸增厚。
該入光面246為一矩形平面，且該入光面246與該環形本體22的外邊緣垂直。
該光源10對準該入光面246。請一並參閱圖2及圖3，由於該入光部24自該環形本體22平滑延伸出，光線經該入光部24可以較均勻傳遞至整個環形本體22。
綜上所述，本發明確已符合發明專利之要件，遂依法提出專利申請。惟，以上所述者僅為本發明之較佳實施方式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案技藝之人士爰依本發明之精神所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍內。
100．．．背光模組
10．．．光源
20．．．環形導光元件
22．．．環形本體
24．．．入光部
242．．．圓弧面
246．．．入光面
圖1係本發明實施例提供之背光模組之示意圖。
圖2及圖3係圖1的光學效果圖。
100．．．背光模組
10．．．光源
20．．．環形導光元件
22．．．環形本體
24．．．入光部
242．．．圓弧面
246．．．入光面

Claims (10)

  1. 一種背光模組，其包括：
    一環形導光元件包括一環形本體以及一自該環形本體向外突出延伸的入光部，該入光部包括一自該環形本體的外邊緣平滑延伸出的圓弧面以及一入光面，該入光面連接該圓弧面與該環形本體的外邊緣；以及
    一光源對準該入光面。
  2. 如請求項1所述之背光模組，其中：該入光部與該環形本體無縫連接。
  3. 如請求項2所述之背光模組，其中：該入光部與該環形本體為一體成型結構。
  4. 如請求項1所述之背光模組，其中：該入光面為一矩形平面，且該入光面與該環形本體的外邊緣垂直。
  5. 如請求項1所述之背光模組，其中：該環形本體為中空圓環形。
  6. 一種環形導光元件，其包括一環形本體以及一自該環形本體向外突出延伸的入光部，該入光部包括一自該環形本體的外邊緣平滑延伸出的圓弧面以及一入光面，該入光面連接該圓弧面與該環形本體的外邊緣。
  7. 如請求項6所述之環形導光元件，其中：該入光部與該環形本體無縫連接。
  8. 如請求項7所述之環形導光元件，其中：該入光部與該環形本體為一體成型結構。
  9. 如請求項6所述之環形導光元件，其中：該入光面為一矩形平面，且該入光面與該環形本體的外邊緣垂直。
  10. 如請求項6所述之環形導光元件，其中：該環形本體為中空圓環形。
TW101125696A 2012-07-17 2012-07-17 背光模組及環形導光元件 TW201405212A (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW101125696A TW201405212A (zh) 2012-07-17 2012-07-17 背光模組及環形導光元件
US13/686,958 US20140022820A1 (en) 2012-07-17 2012-11-28 Ring-shaped light guiding member and backlight module having same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW101125696A TW201405212A (zh) 2012-07-17 2012-07-17 背光模組及環形導光元件

Publications (1)

Publication Number Publication Date
TW201405212A true TW201405212A (zh) 2014-02-01

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US (1) US20140022820A1 (zh)
TW (1) TW201405212A (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI507746B (zh) * 2014-02-07 2015-11-11 E Ink Holdings Inc 導光模組
JP6379875B2 (ja) * 2014-08-29 2018-08-29 日亜化学工業株式会社 照明装置
JP6398519B2 (ja) * 2014-09-19 2018-10-03 カシオ計算機株式会社 リング状照明装置、及び時計

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002111101A (ja) * 2000-09-28 2002-04-12 Toshiba Corp レーザ光源装置
US6969834B2 (en) * 2001-07-03 2005-11-29 Matsushita Electric Industrial Co., Ltd. Line type luminous device and induction heating cooker employing same
FR2850731B1 (fr) * 2003-01-30 2005-09-09 Valeo Vision Guide de lumiere equipe de reflecteurs
JP2006179379A (ja) * 2004-12-24 2006-07-06 Toyoda Gosei Co Ltd リング状発光体
JP2006236974A (ja) * 2005-01-28 2006-09-07 Toyoda Gosei Co Ltd リング状発光体
CN101451682B (zh) * 2007-12-06 2011-06-08 富士迈半导体精密工业（上海）有限公司 环形照明装置
TWI454639B (zh) * 2009-12-28 2014-10-01 Hon Hai Prec Ind Co Ltd 環形導光結構及採用該環形導光結構之背光模組

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