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TWI371631B - Backlight module - Google Patents

Backlight module

Info

Publication number
TWI371631B
TWI371631B TW097129865A TW97129865A TWI371631B TW I371631 B TWI371631 B TW I371631B TW 097129865 A TW097129865 A TW 097129865A TW 97129865 A TW97129865 A TW 97129865A TW I371631 B TWI371631 B TW I371631B
Authority
TW
Taiwan
Prior art keywords
backlight module
backlight
module
Prior art date
Application number
TW097129865A
Other languages
English (en)
Other versions
TW201007278A (en
Inventor
Po Iem Lin
Original Assignee
Au Optronics Corp
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 Au Optronics Corp filed Critical Au Optronics Corp
Priority to TW097129865A priority Critical patent/TWI371631B/zh
Priority to US12/268,522 priority patent/US20100033957A1/en
Publication of TW201007278A publication Critical patent/TW201007278A/zh
Application granted granted Critical
Publication of TWI371631B publication Critical patent/TWI371631B/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
    • 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
    • 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
    • G02B5/0231—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 microprismatic or micropyramidal shape
    • 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
    • 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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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)
TW097129865A 2008-08-06 2008-08-06 Backlight module TWI371631B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW097129865A TWI371631B (en) 2008-08-06 2008-08-06 Backlight module
US12/268,522 US20100033957A1 (en) 2008-08-06 2008-11-11 Backlight Module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW097129865A TWI371631B (en) 2008-08-06 2008-08-06 Backlight module

Publications (2)

Publication Number Publication Date
TW201007278A TW201007278A (en) 2010-02-16
TWI371631B true TWI371631B (en) 2012-09-01

Family

ID=41652772

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097129865A TWI371631B (en) 2008-08-06 2008-08-06 Backlight module

Country Status (2)

Country Link
US (1) US20100033957A1 (zh)
TW (1) TWI371631B (zh)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103928489A (zh) * 2013-08-02 2014-07-16 厦门天马微电子有限公司 有机发光二极管显示面板及其形成方法
US10260711B2 (en) * 2014-05-30 2019-04-16 Osram Sylvania Inc. Light control films and lighting devices including same
JP6886992B2 (ja) 2018-03-30 2021-06-16 恵和株式会社 光拡散板積層体、バックライトユニット、及び液晶表示装置
TWI662303B (zh) * 2018-11-29 2019-06-11 友達光電股份有限公司 背光模組
EP3736624A1 (en) * 2019-03-13 2020-11-11 Keiwa Inc. Multilayer of light diffusers, backlight unit, and liquid crystal display device
WO2020227916A1 (zh) * 2019-05-14 2020-11-19 瑞仪(广州)光电子器件有限公司 光源结构、背光模组及显示装置
US11822158B2 (en) 2019-09-11 2023-11-21 Brightview Technologies, Inc. Back light unit for backlit displays
EP4028830A4 (en) 2019-09-11 2023-10-04 BrightView Technologies, Inc. BACKLIGHT UNIT FOR BACKLIT SCREENS
CN111736391A (zh) * 2020-08-13 2020-10-02 业成科技（成都）有限公司 光学组件与显示装置
KR102461674B1 (ko) * 2020-08-21 2022-11-02 주식회사 엘엠에스 광학필름
EP4246192B1 (en) * 2020-12-01 2025-12-03 KEIWA Incorporated Light diffusion sheet, backlight unit, liquid crystal display device, information apparatus, and method for manufacturing light diffusion sheet
KR20230117438A (ko) * 2020-12-18 2023-08-08 브라이트뷰 테크놀로지즈 아이엔씨. 개선된 효율을 갖는 에지-라이트형 백 라이트 유닛
US12360418B2 (en) 2020-12-18 2025-07-15 Brightview Technologies, Inc. Edge-lit back light unit using prism microstructures
TW202232142A (zh) * 2021-02-09 2022-08-16 暘旭光電股份有限公司 具傾斜結構之光學膜片的背光模組
US12393078B2 (en) 2021-06-10 2025-08-19 Keiwa Incorporated Light diffusion sheet, light diffusion sheet laminate, backlight unit, and liquid crystal display device
CN115812167B (zh) * 2021-07-14 2024-12-20 瑞仪(广州)光电子器件有限公司 背光模组及显示装置
JP7499741B2 (ja) * 2021-09-09 2024-06-14 恵和株式会社 光学シート積層体、バックライトユニット、液晶表示装置、情報機器、及びバックライトユニットの製造方法
JP7289001B2 (ja) 2021-09-28 2023-06-08 恵和株式会社 光学シート積層体、バックライトユニット、液晶表示装置、情報機器、及びバックライトユニットの製造方法
CN116343584B (zh) * 2021-12-22 2025-10-28 瑞轩科技股份有限公司 显示器的背光模块
CN114518671A (zh) * 2022-02-24 2022-05-20 富盛光电（吴江）有限公司 一种分光板及带有该分光板的背光模组
CN114706246A (zh) * 2022-03-28 2022-07-05 东莞市光志光电有限公司 分光膜及其加工方法、背光模组、滚压轮及其加工方法
CN114578620A (zh) * 2022-04-02 2022-06-03 深圳市金光宝光电有限公司 一种底部发光的led背光模组
CN115185124A (zh) * 2022-06-07 2022-10-14 惠州视维新技术有限公司 MiniLED背光模组及显示装置
CN115185126A (zh) * 2022-08-24 2022-10-14 伟时电子股份有限公司 光扩散板及背光模组
CN115629498A (zh) * 2022-10-18 2023-01-20 武汉华星光电技术有限公司 背光模组及其制作方法、显示装置
CN115763455B (zh) * 2022-11-14 2025-10-28 武汉华星光电技术有限公司 显示模组及移动终端
CN115951516B (zh) * 2022-12-08 2024-06-25 业成科技（成都）有限公司 背光模组及显示装置
CN221079143U (zh) 2023-05-22 2024-06-04 亮视技术公司 背光单元

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1790905A4 (en) * 2004-08-24 2008-10-01 Zeon Corp BACKLIGHT DIRECTLY UNDERLYING
KR20080055840A (ko) * 2005-09-15 2008-06-19 니폰 제온 가부시키가이샤 직하형 백라이트 장치
JP2007258152A (ja) * 2006-02-24 2007-10-04 Citizen Electronics Co Ltd バックライトユニット及びそれを備えた表示装置
KR100771828B1 (ko) * 2006-04-04 2007-10-30 삼성전기주식회사 도광판 및 이를 갖는 액정 디스플레이 장치
US20080037283A1 (en) * 2006-07-17 2008-02-14 Eastman Kodak Company Backlight apparatus with particular light-redirecting film
US7784954B1 (en) * 2006-07-25 2010-08-31 Fusion Optix, Inc. Polarization sensitive light homogenizer
CN101191849A (zh) * 2006-12-01 2008-06-04 鸿富锦精密工业（深圳）有限公司 光学板
CN101191847A (zh) * 2006-12-01 2008-06-04 鸿富锦精密工业（深圳）有限公司 光学板
US7540648B2 (en) * 2007-06-29 2009-06-02 Entire Technology Co., Ltd. Diffusion plate assembly
CN101393285A (zh) * 2007-09-21 2009-03-25 鸿富锦精密工业（深圳）有限公司 背光模组及其棱镜片

Also Published As

Publication number Publication date
TW201007278A (en) 2010-02-16
US20100033957A1 (en) 2010-02-11

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