TW200801724A - Direct type backlight unit and method for forming diffuser in the direct type backlight unit - Google Patents

Direct type backlight unit and method for forming diffuser in the direct type backlight unit

Info

Publication number
TW200801724A
TW200801724A TW095149350A TW95149350A TW200801724A TW 200801724 A TW200801724 A TW 200801724A TW 095149350 A TW095149350 A TW 095149350A TW 95149350 A TW95149350 A TW 95149350A TW 200801724 A TW200801724 A TW 200801724A
Authority
TW
Taiwan
Prior art keywords
backlight unit
lamps
type backlight
direct type
diffuser
Prior art date
Application number
TW095149350A
Other languages
English (en)
Inventor
Hyun-Su Lee
Original Assignee
Lg Philips Lcd 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 Lg Philips Lcd Co Ltd filed Critical Lg Philips Lcd Co Ltd
Publication of TW200801724A publication Critical patent/TW200801724A/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
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • 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
    • G02B5/0215—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 the surface having a regular structure
    • 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
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • 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
    • G02B5/0263—Diffusing elements; Afocal elements characterised by the diffusing properties with positional variation of the diffusing properties, e.g. gradient or patterned diffuser
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/133604—Direct backlight with lamps
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

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)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
TW095149350A 2006-06-29 2006-12-27 Direct type backlight unit and method for forming diffuser in the direct type backlight unit TW200801724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060059977A KR101290584B1 (ko) 2006-06-29 2006-06-29 직하형 백라이트 유닛 및 직하형 백라이트 유닛에서의확산판 제조방법

Publications (1)

Publication Number Publication Date
TW200801724A true TW200801724A (en) 2008-01-01

Family

ID=37712418

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095149350A TW200801724A (en) 2006-06-29 2006-12-27 Direct type backlight unit and method for forming diffuser in the direct type backlight unit

Country Status (8)

Country Link
US (1) US7651241B2 (zh)
JP (1) JP2008009369A (zh)
KR (1) KR101290584B1 (zh)
CN (1) CN101097353A (zh)
DE (1) DE102006060733B4 (zh)
FR (1) FR2903202B1 (zh)
GB (1) GB2439556B (zh)
TW (1) TW200801724A (zh)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI359997B (en) * 2006-11-15 2012-03-11 Au Optronics Corp Backlight module and liquid crystal display module
JP4533414B2 (ja) * 2007-09-05 2010-09-01 株式会社日立製作所 照明装置および該照明装置を用いた表示装置
US20090196015A1 (en) * 2008-02-04 2009-08-06 Kismart Corporation Lighting module with wavelength converting structure and manufacturing method for the same
US7832885B2 (en) * 2008-02-05 2010-11-16 Kismart Corporation Patterned wavelength converting structure
WO2009110316A1 (ja) * 2008-03-05 2009-09-11 シャープ株式会社 照明装置、表示装置、及びテレビ受信装置
US8177382B2 (en) * 2008-03-11 2012-05-15 Cree, Inc. Apparatus and methods for multiplanar optical diffusers and display panels for using the same
KR20160073381A (ko) * 2008-05-23 2016-06-24 유브라이트 옵트로닉스 코포레이션 확산용 입자들이 기판에 분산되어 있는 휘도보강막
CN101644860A (zh) * 2008-08-06 2010-02-10 鸿富锦精密工业（深圳）有限公司 直下式背光模组
KR101513716B1 (ko) * 2008-09-18 2015-04-21 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 갖는 액정표시장치
WO2010035566A1 (ja) * 2008-09-23 2010-04-01 シャープ株式会社 照明装置、表示装置、及びテレビ受信装置
WO2010047164A1 (ja) * 2008-10-22 2010-04-29 シャープ株式会社 照明装置、表示装置およびテレビ受信装置
US8801208B2 (en) * 2009-04-02 2014-08-12 Sharp Kabushiki Kaisha Lighting device, display device and television receiver
JP5179651B2 (ja) * 2009-04-03 2013-04-10 シャープ株式会社 照明装置、表示装置、及びテレビ受信装置
CN102498331A (zh) * 2009-09-16 2012-06-13 夏普株式会社 照明装置、显示装置以及电视接收装置
US20120176558A1 (en) * 2009-09-30 2012-07-12 Sharp Kabushiki Kaisha Lighting device, display device and television receiver
CN102597609A (zh) * 2009-11-20 2012-07-18 夏普株式会社 光学构件、照明装置、显示装置、电视接收装置和光学构件的制造方法
FR2972147A1 (fr) * 2011-03-03 2012-09-07 Johnson Contr Automotive Elect Element decoratif, tableau de bord et procede de fabrication d'un element decoratif.
CN103592705B (zh) * 2013-11-06 2014-09-24 苏州东显光电科技有限公司 一种扩散板及其制作方法、背光模组
CN104197245B (zh) * 2014-09-09 2017-06-16 深圳市华星光电技术有限公司 背光模组
KR20160067274A (ko) 2014-12-03 2016-06-14 삼성디스플레이 주식회사 표시 장치
JP6697849B2 (ja) * 2015-01-21 2020-05-27 ソニー株式会社 ウェアラブルディスプレイ装置および画像表示方法
KR20170066974A (ko) 2015-12-07 2017-06-15 삼성전자주식회사 광 확산판 및 이를 포함하는 디스플레이 장치
DE112018004747T5 (de) 2017-08-22 2020-06-10 Varroc Lighting Systems, s.r.o. Leuchtvorrichtung eines Kraftfahrzeugs
KR20200092195A (ko) 2019-01-24 2020-08-03 엘지이노텍 주식회사 조명 장치
US11256018B2 (en) 2019-07-03 2022-02-22 Varroc Lighting Systems, s.r.o Light assembly including an illuminating utility segment and a visual stimulant segment
US10991339B1 (en) * 2019-11-26 2021-04-27 Facebook Technologies, Llc System and method for increasing light uniformity for a display backlight
CZ2020344A3 (cs) 2020-06-15 2021-12-22 Varroc Lighting Systems, s.r.o. Osvětlovací jednotka pro světelné zařízení motorového vozidla

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE42088T1 (de) 1984-02-28 1989-04-15 English Electric Co Ltd Glaskeramiken auf basis von lithiumaluminosilikat.
JPH03238489A (ja) * 1990-02-15 1991-10-24 Seiko Epson Corp 照明装置
JPH0495923A (ja) * 1990-08-07 1992-03-27 Stanley Electric Co Ltd 照明装置
JP3030465B2 (ja) * 1990-10-30 2000-04-10 株式会社大野技術研究所 光量制御部材
US5384658A (en) * 1990-09-04 1995-01-24 Ohno Research & Development Laboratories Co. Ltd. Plastic optical member and light-quantity-controlling member each having a light-diffusing layer on its surface
JPH06301034A (ja) * 1992-04-30 1994-10-28 Riyoosan:Kk バックライト装置及びその組立て方法
JPH08202298A (ja) * 1995-01-27 1996-08-09 Tokai Riken Kk 光りパネル装置及びその製造方法
JP2000047208A (ja) * 1998-07-27 2000-02-18 Hitachi Ltd 液晶表示装置
JP3746173B2 (ja) * 1999-03-12 2006-02-15 松下電器産業株式会社 面照明装置及びそれを用いた携帯端末装置
KR100292333B1 (ko) 1999-03-29 2001-06-01 김태우 액정표시패널의 백라이트 광원용 면조명장치
US6425673B1 (en) * 1999-09-20 2002-07-30 Mitsubisshi Chemical Corporation Light guide pipe having elongate roughened protrusions and/or roughened concaves, planar light source unit having a broad viewing angle characteristic, and liquid crystal display device
JP4176106B2 (ja) * 2002-09-30 2008-11-05 シャープ株式会社 バックライトユニット及びバックライトユニットを用いた液晶表示装置
ES2378124T3 (es) 2002-10-22 2012-04-09 Sharp Kabushiki Kaisha Unidad de retroiluminación y unidad de visualización de cristal líquido que utiliza la unidad de retroiluminación
TWI226954B (en) 2003-07-08 2005-01-21 Au Optronics Corp Direct type backlight module
KR20060079234A (ko) * 2003-09-19 2006-07-05 소니 가부시끼 가이샤 백라이트 장치 및 액정 표시 장치
JP2005117023A (ja) * 2003-09-19 2005-04-28 Sony Corp バックライト装置及び液晶表示装置
US7152988B2 (en) * 2004-03-30 2006-12-26 Chi Mei Optoelectronics Corp. Direct point-light type backlight module and liquid crystal display using the same
JP4590977B2 (ja) * 2004-08-18 2010-12-01 ソニー株式会社 バックライト装置及び透過型液晶表示装置

Also Published As

Publication number Publication date
FR2903202A1 (fr) 2008-01-04
GB2439556B (en) 2009-12-23
CN101097353A (zh) 2008-01-02
FR2903202B1 (fr) 2013-09-13
KR101290584B1 (ko) 2013-07-30
GB0625320D0 (en) 2007-01-24
US20080002391A1 (en) 2008-01-03
DE102006060733B4 (de) 2018-05-30
US7651241B2 (en) 2010-01-26
DE102006060733A1 (de) 2008-01-03
KR20080001507A (ko) 2008-01-03
JP2008009369A (ja) 2008-01-17
GB2439556A (en) 2008-01-02

Similar Documents

Publication Publication Date Title
TW200801724A (en) Direct type backlight unit and method for forming diffuser in the direct type backlight unit
TW200637008A (en) Liquid crystal display device and method for manufacturing the same
TW200710506A (en) Surface light source and backlight unit having the same
TW200604649A (en) Diffusing board and surface light source device
TW200600927A (en) Backlight unit and liquid crystal display using the same
CN202216081U (zh) 一种局部调光的背光源及液晶显示模组
CN102059865A (zh) 导光板及其印刷方法和背光模组
TW200702839A (en) Backlight assembly and liquid crystal display device having the same
TW200736718A (en) Backlight module
TW200613838A (en) Large size backlight apparatus reduced in thickness
TW200739211A (en) Method for manufacture of liquid crystal cell substrates, liquid crystal cell substrates, and liquid crystal device
TW200725169A (en) Patterning method and method for manufacturing liquid crystal display device using the same
WO2006137660A3 (en) Back light unit
TW200706954A (en) Liquid crystal display
TW200801697A (en) Liquid crystal display and electronic apparatus
CN202017959U (zh) 带有混光装置的直下式式led背光源模组
TW200641462A (en) Electro-optical device, electronic apparatus, and illuminating device
TW200604590A (en) Photo development apparatus and method for fabricating a color filter substrate using the same
CN205678515U (zh) 一种高色彩饱和度显示装置
KR20080086700A (ko) 백라이트 유닛의 확산판
TW200719052A (en) Apparatus for producing uniform luminance in liquid crystal display backlight
WO2010059017A3 (ko) 핫스팟 개선 복합시트 및 이를 이용한 백라이트 유닛
CN106647043A (zh) 一种采用聚合型扩散板的背光结构
TW200622147A (en) Backlight module
CN201348691Y (zh) 彩虹显示装置及液晶显示屏