TWI336011B - Light guiding apparatus, backlight assembly and liquid crystal display device having the same - Google Patents

Light guiding apparatus, backlight assembly and liquid crystal display device having the same Download PDF

Info

Publication number
TWI336011B
TWI336011B TW092114437A TW92114437A TWI336011B TW I336011 B TWI336011 B TW I336011B TW 092114437 A TW092114437 A TW 092114437A TW 92114437 A TW92114437 A TW 92114437A TW I336011 B TWI336011 B TW I336011B
Authority
TW
Taiwan
Prior art keywords
light
backlight assembly
light guiding
pattern
guiding member
Prior art date
Application number
TW092114437A
Other languages
English (en)
Chinese (zh)
Other versions
TW200405093A (en
Inventor
Lee Sang-Duk
Kang Jung-Tae
Kim Kyu-Seok
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of TW200405093A publication Critical patent/TW200405093A/zh
Application granted granted Critical
Publication of TWI336011B publication Critical patent/TWI336011B/zh

Links

Classifications

    • 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
    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width 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
    • G02B6/0033—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
    • G02B6/0033—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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)
TW092114437A 2002-07-09 2003-05-28 Light guiding apparatus, backlight assembly and liquid crystal display device having the same TWI336011B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020039810A KR20040005309A (ko) 2002-07-09 2002-07-09 도광장치와 이를 갖는 백라이트 어셈블리 및 액정 표시 장치

Publications (2)

Publication Number Publication Date
TW200405093A TW200405093A (en) 2004-04-01
TWI336011B true TWI336011B (en) 2011-01-11

Family

ID=30113109

Family Applications (1)

Application Number Title Priority Date Filing Date
TW092114437A TWI336011B (en) 2002-07-09 2003-05-28 Light guiding apparatus, backlight assembly and liquid crystal display device having the same

Country Status (5)

Country Link
US (2) US7133092B2 (enExample)
JP (1) JP4362048B2 (enExample)
KR (1) KR20040005309A (enExample)
CN (1) CN100397179C (enExample)
TW (1) TWI336011B (enExample)

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KR20040005309A (ko) * 2002-07-09 2004-01-16 삼성전자주식회사 도광장치와 이를 갖는 백라이트 어셈블리 및 액정 표시 장치
KR100698061B1 (ko) * 2004-03-30 2007-03-23 엘지.필립스 엘시디 주식회사 직하형 백라이트 유닛
CN100432709C (zh) * 2004-09-27 2008-11-12 中华映管股份有限公司 笔记本电脑、背光模块及其导光板
US7775700B2 (en) * 2004-10-01 2010-08-17 Rohm And Haas Electronics Materials Llc Turning film using array of roof prism structures
US7408461B2 (en) * 2005-01-11 2008-08-05 Controlled Capture Systems, Llc Metal detection system and method
KR101222957B1 (ko) * 2005-12-29 2013-01-17 엘지디스플레이 주식회사 액정표시장치
KR100800512B1 (ko) * 2006-10-10 2008-02-04 엘지전자 주식회사 도광시트의 제조 방법
JP4333768B2 (ja) * 2007-04-06 2009-09-16 ソニー株式会社 表示装置
US7379130B1 (en) 2007-10-03 2008-05-27 Vitera Llc LCD with hetero polar light guide
KR100906492B1 (ko) * 2008-12-18 2009-07-08 (주)섬레이코퍼레이션 면광원 조명장치
KR101580329B1 (ko) * 2009-09-07 2015-12-23 엘지이노텍 주식회사 휴대용 기기에서의 전력 회생장치
US20110242849A1 (en) * 2010-04-05 2011-10-06 Skc Haas Display Films Co., Ltd. Thin double-sided light guide plate
US20110242847A1 (en) * 2010-04-06 2011-10-06 Skc Haas Display Films Co., Ltd. Laminated double-sided light guide plate
US20110242850A1 (en) * 2010-04-06 2011-10-06 Skc Haas Display Films Co., Ltd. Double-sided light guide plate manufactured with micro-patterned carrier
US20110242848A1 (en) * 2010-04-06 2011-10-06 SKC Haas Display Film Co., Ltd. Printed double-sided light guide plate
JP5200077B2 (ja) * 2010-09-13 2013-05-15 住友化学株式会社 光学シート、面光源装置及び透過型画像表示装置
US8628321B2 (en) * 2010-10-13 2014-01-14 Microsoft Corporation Molding of nonuniform object having undercut structure
TWI408046B (zh) * 2010-12-28 2013-09-11 Au Optronics Corp 背光模組、導光裝置及其導光板製造方法
JP5197782B2 (ja) * 2011-03-04 2013-05-15 株式会社東芝 バックライト装置および表示装置
TW201300894A (zh) * 2011-06-20 2013-01-01 Au Optronics Corp 側光式背光模組
CN102565922A (zh) * 2012-03-05 2012-07-11 昆山市诚泰电气股份有限公司 具有光扩散功能的玻璃导光板
CN102588803A (zh) * 2012-03-14 2012-07-18 昆山市诚泰电气股份有限公司 平板型led灯
CN102588802A (zh) * 2012-03-14 2012-07-18 昆山市诚泰电气股份有限公司 Led平面灯
TWI539211B (zh) 2012-04-30 2016-06-21 中強光電股份有限公司 導光板及使用導光板之背光模組
DE102012109900B4 (de) * 2012-10-17 2015-10-15 Bayerische Motoren Werke Aktiengesellschaft Fahrzeugverglasung
TWI499836B (zh) * 2013-01-11 2015-09-11 Innolux Corp 具有霧度元件的顯示裝置
CN103927950A (zh) * 2013-01-11 2014-07-16 群创光电股份有限公司 具有雾度元件的显示装置
KR102158802B1 (ko) * 2013-10-31 2020-09-23 삼성디스플레이 주식회사 표시 패널 및 액정 표시 장치
KR101641375B1 (ko) * 2014-04-03 2016-07-21 주식회사 비바아트 복합 광산란요소를 갖는 도광판 유닛과 이의 제조방법
CN107817540B (zh) * 2014-07-18 2020-04-14 凸版印刷株式会社 波长转换片材用保护膜、波长转换片材及背光单元
KR101691340B1 (ko) * 2014-10-16 2016-12-29 도판 인사츠 가부시키가이샤 양자 도트 보호 필름, 그것을 사용한 양자 도트 필름 및 백라이트 유닛
CN104407412A (zh) * 2014-12-15 2015-03-11 广州创维平面显示科技有限公司 导光板、液晶显示装置、导光板的加工装置及加工方法
JP6576087B2 (ja) * 2015-04-21 2019-09-18 株式会社沖データ 画像形成装置及び複合装置
WO2019213661A1 (en) 2018-05-04 2019-11-07 Red E Innovations, Llc System for monitoring an injection mold or stamping die
CN121232346A (zh) * 2024-06-28 2025-12-30 中强光电股份有限公司 导光板及光源模块

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KR100371393B1 (ko) * 1997-06-28 2003-11-28 주식회사 엘지화학 액정 표시 판넬용 광학 시트 및 그 제조 방법
JP3654410B2 (ja) * 1997-08-11 2005-06-02 株式会社エンプラス サイドライト型面光源装置、液晶表示装置及び導光板
JP4118389B2 (ja) * 1997-12-29 2008-07-16 日本ライツ株式会社 導光板および平面照明装置
KR20000038518A (ko) * 1998-12-04 2000-07-05 윤종용 반사형 액정표시장치
KR100383033B1 (ko) * 1999-11-13 2003-05-09 전자부품연구원 표시 장치용 백라이트 장치
CN1151388C (zh) * 2000-06-07 2004-05-26 明基电通股份有限公司 均光背光板制作方法，均光背光板及其扫描器和液晶显示器
KR20040005309A (ko) * 2002-07-09 2004-01-16 삼성전자주식회사 도광장치와 이를 갖는 백라이트 어셈블리 및 액정 표시 장치
TWI273292B (en) * 2002-12-31 2007-02-11 Hon Hai Prec Ind Co Ltd Light guide plate and backlight system using the same

Also Published As

Publication number Publication date
KR20040005309A (ko) 2004-01-16
CN1470917A (zh) 2004-01-28
JP2004039640A (ja) 2004-02-05
JP4362048B2 (ja) 2009-11-11
US20040008507A1 (en) 2004-01-15
US7580091B2 (en) 2009-08-25
CN100397179C (zh) 2008-06-25
US7133092B2 (en) 2006-11-07
US20070127260A1 (en) 2007-06-07
TW200405093A (en) 2004-04-01

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GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees