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TWI257015B - Light guide plate and back light system with the same - Google Patents

Light guide plate and back light system with the same

Info

Publication number
TWI257015B
TWI257015B TW091136973A TW91136973A TWI257015B TW I257015 B TWI257015 B TW I257015B TW 091136973 A TW091136973 A TW 091136973A TW 91136973 A TW91136973 A TW 91136973A TW I257015 B TWI257015 B TW I257015B
Authority
TW
Taiwan
Prior art keywords
guide plate
side surfaces
light guide
distances
light
Prior art date
Application number
TW091136973A
Other languages
English (en)
Other versions
TW200411271A (en
Inventor
Kun-Jung Tsai
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 TW091136973A priority Critical patent/TWI257015B/zh
Priority to US10/744,164 priority patent/US20040136173A1/en
Publication of TW200411271A publication Critical patent/TW200411271A/zh
Application granted granted Critical
Publication of TWI257015B publication Critical patent/TWI257015B/zh

Links

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
    • 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
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
TW091136973A 2002-12-20 2002-12-20 Light guide plate and back light system with the same TWI257015B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW091136973A TWI257015B (en) 2002-12-20 2002-12-20 Light guide plate and back light system with the same
US10/744,164 US20040136173A1 (en) 2002-12-20 2003-12-22 Surface light source device for liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW091136973A TWI257015B (en) 2002-12-20 2002-12-20 Light guide plate and back light system with the same

Publications (2)

Publication Number Publication Date
TW200411271A TW200411271A (en) 2004-07-01
TWI257015B true TWI257015B (en) 2006-06-21

Family

ID=32710114

Family Applications (1)

Application Number Title Priority Date Filing Date
TW091136973A TWI257015B (en) 2002-12-20 2002-12-20 Light guide plate and back light system with the same

Country Status (2)

Country Link
US (1) US20040136173A1 (zh)
TW (1) TWI257015B (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4363268B2 (ja) * 2004-07-08 2009-11-11 三菱電機株式会社 面状光源装置
CN100510515C (zh) * 2004-09-28 2009-07-08 三菱丽阳株式会社 面光源装置用导光体及面光源装置
CN100370283C (zh) * 2004-12-24 2008-02-20 鸿富锦精密工业（深圳）有限公司 导光板
CN100405164C (zh) * 2005-08-18 2008-07-23 鸿富锦精密工业（深圳）有限公司 导光板、背光模组和双面液晶显示装置
CN101025517B (zh) * 2006-02-24 2010-09-29 鸿富锦精密工业（深圳）有限公司 背光模组
KR100798224B1 (ko) 2006-07-25 2008-01-24 한국성전(주) 빛 누출 방지 개선한 도파로 시트를 사용한 키인쇄회로기판 및 키 플렉시블 인쇄회로기판의 조립체
CN100492125C (zh) * 2006-11-17 2009-05-27 群康科技(深圳)有限公司 液晶显示装置
US8605234B2 (en) * 2008-12-05 2013-12-10 Koninklijke Philips N.V. Light guide, patterned light emitting diode device, illumination system and method of generating the light guide or patterned light emitting diode device
GB2479590B (en) * 2010-04-16 2016-08-10 Zeta Specialist Lighting Light guide panel assembly
CN102495469B (zh) 2011-12-14 2014-03-26 深圳市华星光电技术有限公司 背光模块的导光板的选取方法
JP5556836B2 (ja) * 2012-03-15 2014-07-23 オムロン株式会社 面光源装置
FR2998351B1 (fr) * 2012-11-21 2020-06-12 Innovative Technologies Panneau de retroeclairage a leds, a lumiere tangentielle et a luminance homogene
CN107179627B (zh) * 2016-03-09 2020-10-23 台湾扬昕股份有限公司 光源模块以及显示装置
CN110488520B (zh) * 2019-08-08 2021-05-07 深圳市华星光电半导体显示技术有限公司 侧入式导光板、背光模组及显示装置
GB2589110B (en) 2019-11-20 2022-11-09 Design Led Products Ltd Uniform lighting device
GB2597100B (en) 2020-07-15 2024-01-31 Design Led Products Ltd Pixelated lighting device
CN116265805A (zh) * 2021-12-16 2023-06-20 浙江春风动力股份有限公司 发光模组

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69207934T2 (de) * 1991-03-29 1996-09-05 Nissha Printing Flächenartige Lichtquelle
JP2830972B2 (ja) * 1995-03-06 1998-12-02 株式会社日立製作所 液晶表示装置
JP4011805B2 (ja) * 1999-11-22 2007-11-21 日東電工株式会社 導光板、面光源装置及び液晶表示装置

Also Published As

Publication number Publication date
TW200411271A (en) 2004-07-01
US20040136173A1 (en) 2004-07-15

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees