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TWI313375B - Direct type back light module - Google Patents

Direct type back light module Download PDF

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Publication number
TWI313375B
TWI313375B TW094138782A TW94138782A TWI313375B TW I313375 B TWI313375 B TW I313375B TW 094138782 A TW094138782 A TW 094138782A TW 94138782 A TW94138782 A TW 94138782A TW I313375 B TWI313375 B TW I313375B
Authority
TW
Taiwan
Prior art keywords
light
direct
backlight module
item
direct type
Prior art date
Application number
TW094138782A
Other languages
English (en)
Other versions
TW200719020A (en
Inventor
Tung-Ming Hsu
Wen-Feng Cheng
Chien-Min Chen
Ming-Fu Hsu
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 TW094138782A priority Critical patent/TWI313375B/zh
Priority to US11/407,841 priority patent/US7413318B2/en
Publication of TW200719020A publication Critical patent/TW200719020A/zh
Application granted granted Critical
Publication of TWI313375B publication Critical patent/TWI313375B/zh

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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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F1/133628—Illuminating devices with cooling means

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Description

Ϊ313375 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種發光均勻且薄型化之直下式背光模組。 【先前技術】 液晶顯示器為一種非自發光顯示裝置，其顯示主要藉由控制外部光源所 發出光束之通過或者不通過來實現’因此通常需要外部光源及相應之導光袭 置，如背光模組，該背光模組可將外部光源所發出之光束導向顯示面板。、 由於顯示裝置之重量及體積之革新係靠顯示器之有效扁平化而達成 的，其中背光模組便扮演著有效利用光源之重要角色。於顯示器體積扁平化 之前提下’如何利用光線之特性’使背光模組之每個區域都有足夠而且均勻 之輝度，係背光模組結構改進之重點方向。 一種先刖技術之直下式背光模組如第一圖所示，該直下式背光模組 包括一盒體14、複數光源13、複數支撐體12及擴散板11。該複數光源13 並列位於該盒體14之底面，且盒體14之底面可以設置反射膜(圖未示），該 擴散板11設置於該盒體14之開口處’複數支撐體12位於該盒體14之底面 與擴散板11之間，用於支揮該擴散板11 〇 先前技術之直下式背光模組1 〇僅利用盒體14底面之反射膜以提供光源 13向上之出光率，卻使液晶顯示面板之相對光源η之正上方之光線直接出 光而令輝度較亮，而於兩光源之間區域之輝度較暗，造成平面光源出現輝度 不句之問題，進而使得液晶顯示器呈現之影像輝度不均勻。由於擴散板u 與光源13之間需保持一段距離，才能使擴散板^呈現預設之光擴散功效， 若與光源13過近則無法達到使光線均勻擴散之效果，因此，該直下式背光 权組10存在厚度將無法縮減之問題。此外，由於光源13數量較多，發熱 量較高，該背光模組1〇無輔助之散熱結構，因此存在散熱性不是很好之問 題。 【發明内容】 有鑒於此’有必要提供一種發光均勻且薄型化之直下式背光模組。 一種直下式背光模組，包括一基底；一擴散板，相對該基底設置；複數 導光支揮體’設置於該基底與該擴散板之間用於支撐擴散板，該複數導光支

Claims (1)

  1. ‘1313375 乃年’>月’〉日修正替換頁 十、申請專利範圍： 1 一種直下式背光模組，其包括： 一基底； 一擴散板，相對該基底設置； 複數導光^撐體’設置於該基底與該擴散板之間用於支樓擴散板，該複數導 光支樓體罪近基底之一面設有入光面，該入光面限定一凹槽，該導光支撐體 位於^光面之兩側部分為兩個側翼部，該兩侧翼部之側齡別與該基底形 成一第-夾角，該第一夾角小於等於9〇度，該兩侧翼部之頂面為一 V形面， 该V形面具有一第二夾角，該第二錢小於96度該v形面上設 反射膜； 干 複數光源，設置科歧撐體之凹勸，該統發出之光線經人光面射向v 形面，該V形面將投射於其上之大部分光線反射至侧翼部之側面並經該 面折射至擴散板。 2·=申請專利細第i項所述之直下式背織組，其中，該導光支樓體讀料 為聚甲基丙稀酸甲酯或聚碳酸酯。 3· $申睛專利範圍第2項所述之直下式背光模組，其中，該導光支撐體材料可 進—步添加二氧娜、二氧化鈦或二氧化石夕與二氧化欽之混合物。 .= 青專利麵第i項所述之直下式背光模組，其中，該半穿透半反射膜材 料為#S、金或銀。 申請專利範圍第i項所述之直下式背槪组，其中，該半穿透半反射膜上 進—步設有介質光學薄膜。 、 6=^_第5項所述之直下式背絲組，其中，該介質光學薄膜狀 枓為疋向聚丙烯、聚對苯二甲酸乙二醇酯或聚氣乙烯。 7· ΐΓί專利細第1項所述之直下式背光模組，其進—步包括多個側壁，該 i底與該多個側壁形成一開口之盒體。 8. 利麵第7項所述之直下式背級組，其中，該多侧 射面，或設置有反射片或反射板。 π久 9_如申請專利細第i猶述之直下讀光，斜，絲絲面為反射面， 11 匕，，曰修正替換頁 * 1313375 ψ 或設置有反射片或反射板。 - 10.如申請專利麵第1項中所述之直下式背光模組，其中，兮㈣ 有〇形環。 '中"亥光源上間隔套設 -u.如申請專利細第1項中所述之直下式背編且，其中，嗜搬柘、輸道土 支撐體之表面上設置有增亮膜或雛膜。 口織板捕導光 12•如申請專利細第丄項中所述之直下式背光模組 設置有散熱褒置。 。哀月光模組之底部 I3·如申請專利範圍第12項 * 複數聽平卜縣底篇她，射，該散Μ置具有 -配合。 H應之開σ ’複數突起平讀該開口_
TW094138782A 2005-11-04 2005-11-04 Direct type back light module TWI313375B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW094138782A TWI313375B (en) 2005-11-04 2005-11-04 Direct type back light module
US11/407,841 US7413318B2 (en) 2005-11-04 2006-04-20 Direct type backlight module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094138782A TWI313375B (en) 2005-11-04 2005-11-04 Direct type back light module

Publications (2)

Publication Number Publication Date
TW200719020A TW200719020A (en) 2007-05-16
TWI313375B true TWI313375B (en) 2009-08-11

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TW094138782A TWI313375B (en) 2005-11-04 2005-11-04 Direct type back light module

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US (1) US7413318B2 (zh)
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Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4600257B2 (ja) * 2005-11-25 2010-12-15 ソニー株式会社 導光板、バックライト装置とその製造方法及び液晶表示装置
WO2007077657A1 (ja) * 2006-01-05 2007-07-12 Sharp Kabushiki Kaisha 照明装置、表示装置およびテレビジョン受信機
TWI329749B (en) * 2007-04-04 2010-09-01 Coretronic Corp High brightness diffusion plate
KR101460152B1 (ko) * 2008-05-09 2014-11-11 삼성디스플레이 주식회사 광 가이드 유닛 및 이를 갖는 백라이트 어셈블리
WO2012032998A1 (ja) * 2010-09-06 2012-03-15 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
US8814391B2 (en) 2010-09-20 2014-08-26 Luxingtek, Ltd. Light guiding structure
US9075172B2 (en) * 2010-09-20 2015-07-07 Luxingtek, Ltd. Light converting optical structure and lighting device utilizing the same
CN202056689U (zh) * 2011-05-20 2011-11-30 京东方科技集团股份有限公司 一种背光源及显示装置
TW201326674A (zh) * 2011-12-28 2013-07-01 Ind Tech Res Inst 發光二極體陣列光源以及光學引擎
KR102023540B1 (ko) * 2012-08-08 2019-09-24 엘지이노텍 주식회사 광속 제어 부재, 발광 장치 및 표시 장치
CN102840514A (zh) * 2012-08-31 2012-12-26 深圳市华星光电技术有限公司 一种直下式背光模组及其led封装件
US20140347599A1 (en) * 2013-05-24 2014-11-27 Hon Hai Precision Industry Co., Ltd. Backlight module and liquid crystal display device
JP6277630B2 (ja) * 2013-08-19 2018-02-14 船井電機株式会社 表示装置
WO2015182797A1 (ko) * 2014-05-27 2015-12-03 주식회사 이아이라이팅 광학 모듈
JP2016051101A (ja) * 2014-09-01 2016-04-11 株式会社ジャパンディスプレイ 液晶表示装置
US10144288B2 (en) * 2016-03-31 2018-12-04 Denso International America, Inc. LCD display with highlighting
CN108644647B (zh) * 2018-07-16 2020-03-17 深圳创维－Rgb电子有限公司 一种直下式背光模组及显示器
JP6753452B2 (ja) * 2018-11-30 2020-09-09 日亜化学工業株式会社 発光モジュール
CN110111693A (zh) * 2019-05-08 2019-08-09 惠州市华星光电技术有限公司 背光模组及显示装置
CN110320703B (zh) * 2019-07-15 2022-09-27 京东方科技集团股份有限公司 一种双面显示装置
CN114153092B (zh) * 2021-12-09 2024-02-09 武汉华星光电技术有限公司 背光模组及显示装置
CN114660851B (zh) * 2022-04-12 2024-02-09 Tcl华星光电技术有限公司 背光模组及显示装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613750A (en) * 1994-11-07 1997-03-25 Delco Electronics Corporation Fluorescent backlighting device for an instrument panel
US5555161A (en) * 1995-09-11 1996-09-10 Delco Electronics Corporation Bi-functional light pipe and display assembly
JP4023079B2 (ja) * 2000-08-31 2007-12-19 株式会社日立製作所 面状照明装置及びこれを備えた表示装置
TW542883B (en) * 2002-08-16 2003-07-21 Au Optronics Corp Backlight unit for flat panel liquid crystal display
TWI255371B (en) * 2003-05-13 2006-05-21 Au Optronics Corp Back light module and liquid crystal display
US6846089B2 (en) * 2003-05-16 2005-01-25 3M Innovative Properties Company Method for stacking surface structured optical films
TW200426412A (en) * 2003-05-29 2004-12-01 Au Optronics Corp Vertical type backlight unit
TW591300B (en) * 2003-06-19 2004-06-11 Au Optronics Corp Backlight module
US6974221B2 (en) * 2003-12-30 2005-12-13 Au Optronics Corporation Support for backlight module
US6966674B2 (en) * 2004-02-17 2005-11-22 Au Optronics Corp. Backlight module and heat dissipation structure thereof
TWI313775B (en) * 2005-01-06 2009-08-21 Au Optronics Corp Backlight module and illumination device thereof

Also Published As

Publication number Publication date
TW200719020A (en) 2007-05-16
US7413318B2 (en) 2008-08-19
US20070103889A1 (en) 2007-05-10

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