TWI287149B - Backlight module and method of manufacturing the same - Google Patents

Backlight module and method of manufacturing the same Download PDF

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Publication number
TWI287149B
TWI287149B TW094129262A TW94129262A TWI287149B TW I287149 B TWI287149 B TW I287149B TW 094129262 A TW094129262 A TW 094129262A TW 94129262 A TW94129262 A TW 94129262A TW I287149 B TWI287149 B TW I287149B
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Taiwan
Prior art keywords
backlight module
back plate
manufacturing
plastic frame
plate
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TW094129262A
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English (en)
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TW200708839A (en
Inventor
Sin-Tung Haung
Ying-Chieh Chen
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Innolux Display Corp
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Priority to TW094129262A priority Critical patent/TWI287149B/zh
Priority to JP2006228264A priority patent/JP2007066893A/ja
Priority to US11/510,884 priority patent/US20070046859A1/en
Publication of TW200708839A publication Critical patent/TW200708839A/zh
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Publication of TWI287149B publication Critical patent/TWI287149B/zh

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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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • 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
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0093—Means for protecting the light guide
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G02F2201/503—Arrangements improving the resistance to shock

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Description

12*87149 Μ
V 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種背光模組及其製造方法。 【先前技術】 由於液晶顯示裝置具輕、薄、耗電小等優點，廣泛應用於筆 記本電腦、行動電話、個人數位助理等現代储訊設備。因液晶 本身不具發光躲，需域提供f光模_實_示功能。 請參照第-圖，-種先前技術之背光模組i包括··具有侧邊 111與内底面113之金屬背板u、包括側壁121之膠框12、位於 内底面113上方之反射板13、位於反射板13上方之導光板、 位於導光板14上款絲板15及與導秘14 端相鄰之光源 =。該金屬背板U與雜12結合，且膠框12之側壁121的向外 犬出的卡塊I22卡入設於該金屬背板u的側邊U1之固定孔把。 該先前技術之背光模Μ巾，從光源16射出的光進入導光板 !4’部份光從導光板Μ出光面射出，而另一部份光射出導光板14 的底面，經反射板13反射後，射出導光板14的出光面。 該月光模組1之金屬背板U與膠框12以卡塊122與固定孔 112卡合之方式結合，容易出現鬆脫之現象。 【發明内容】 有鑑於此，有必要提供一種不易鬆脫之背光模組。 本發明還提供一種上述背光模組之製造方法。 1287149 一種實施Μ揭露之f光模組包括：她 該膠框與她-體_，軸射板騎合扯括_軸·空=， 該光學元件位於該容納空間内。 一種實施方式聽之背紐_製造方法，包括步驟··提供 ΐ板；提供雜材料與膠鋪具，卿框射板以—體成型的方 式結合，形成-軸賴；提供絲元件，將光學元件置於該容 納空間。 相較於先前技術之背光模組，該背光模組之膠框與背板一體 成型，可避免-先前技術之背光模組之膠框與金屬背板以卡塊 卡合而容Μ現鬆默縣。歸光她之製造方法將膠框與背 板以-體成型之方式結合，此結合方式可增強#板與膠框的結合 體之剛性，從而提高整個背光模組的剛性。 【實施方式】 本發明之背光模組如第二圖及第三圖所示，第二圖係背光模 組2的分解圖，第三圖係第二圖所示背光模組之沿瓜.之剖面圖。 背光模組2包括具有内底面(未標示)與内壁211之金屬背板21、 膠框22、鍍於該金屬背板21之内底面之反射層23、導光板24、 位於導光板24上方之散射板25及與該導光板24的一端相鄰之光 源26。該膠框22與金屬背板21結合成一體，即該膠框22與金屬 月板21係一體成型，且該膠框22包覆該金屬背板21之内壁。該 導光板24位於該金屬背板21上方。該金屬背板21可為鋁背板。 1287149 m k 該膠框採用聚碳酸酯材料。該反射層可採用高反射率之金屬，如 銀。 剷述为光模組2之製造方法的第一實施方式如第二圖、第三 圖與第四圖所示，其步驟包括： 提供金屬背板21，該金屬背板21包括内壁211與内底面； 以電鑛或濺鍍的方式在該内底面形成反射層23 ; 提供膠框材料與膠框模具，將金屬背板21置於該膠框模具 修内，以模内成型(Insert mold)之方式結合膠框π與金屬背板21， 且膠框22包覆金屬背板21的内壁，以形成一體成型之膠框22與 金屬背板21 ; 提供導光板24，將導光板24置於該金屬背板21的内底面上； 提供光源26，將光源26相鄰導光板24 一端放置； 提供散射板25，將散射板25置於該導光板24上方。 馨本剌之#光麵之製造枝_二實财式㈣二圖、第 三圖與第四圖所示，其步驟包括·· 提供金屬背板21，該金屬背板21包括内壁211與内底面，· 提供職㈣與雜模具，將金射板21置_膠框模具 内’以拉内成型之方式結合金屬背板21與膠框Μ，且膠框r包 覆金屬背板21之内壁，以形成一體成型之膠框Μ與金屬背板Μ ; 以電鍍或濺鍍方式在該金射板之_面形成反射層23 ; ’ 提供導光板24，料光板24胁該金射板U _底面上； 1287149 ▲ 提供光源26，將光源26相鄰該導光板26的一端放置； ^供散射板25，將散射板25置於該導光板24上方。 本發明之背光模組2之金屬背板21與膠框22以模内成型的 方式結合’ J«膠框22包覆金射板21之内^，以形成一體成型 之馳22與金屬背板21，從而實現金屬背板21與膠框22緊密結 合成一體，不容易出現鬆脫之現象，即可增強整個背光模組2之 剛性。 1 、综上所述，本發明確已符合發明專利之要件，妥依法提出專 2申請。惟’以上所述者僅為本發明之較佳實施方式，本發明之 範圍並不以上述魏方式為限，舉凡鮮本案技藝之人士援依本 發明之精摘狀等雜飾或變化，冑應涵蓋於町冑請專利 圍内。 【圖式簡單說明】 .第圖係-種先前技術之背光模組之示意圖。 第一圖係本發明之背光模組之分解示意圖。 第二圖係第二圖所示背光模組沿之剖面圖。 第四圖係本發明之背光模組之組合示意圖。 【主要元件符號說明】 背光模組 2 導光板 24 金屬背板 21 散射板 25 膠框 22 光源 26 Ι2·87149 反射層 23 内壁 211
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Claims (1)

  1. I2«7149 蓍 ι 十、申請專利範圍： 羝7. u ι.—種背光模組，包括：背板、膠框與光學元件，該膠框轉板一 體成型，膠框射㈣結合體包括-容納郎，該光學元件位於 該容納空間内。 2. 如申請專利範圍第1項所述之背光模組，其中該背板進一步包括 内壁與内底面，該内底面上具有反射層。 3. 如申請專利範圍第2項所述之背光模組，其中該膠框包覆該背板 _ 之内壁。 4·如申請專利細第！項所述之背光模組，其中該背板為金屬背 板。 5.如申請專概_4項所述之背光模組，其中該金屬背板為紹背 板。 6·—種背光模組的製造方法，包括步驟： 提供背板； 提供膠框材料與膠框模具，將膠框與背板以一體成型的方式結 合，形成一容納空間； 提供光學元件，將光學元件置於該容納空間。 7·如申請專利範圍第6項所述之背光模組之製造方法，其中該背板 進-步包括内壁翻底面，該方法還包括於該背板㈣底面形成 反射層之步驟。 8.如申請專利範圍第7項所述之背光模組之製造方法，其中該膠框 11 1287149 雋 V f 4/ • 包覆該背板之内壁。 9·如申請專利範圍第7項所述之背光模組之製造方法，其中該反射 層係以濺鐘或電鍍之方式形成於該背板之内底面。 10·如申請專利範圍第7項所述之背光模組之製造方法，其中該反 射層為高反射率的金屬材料。 11.如申請專利範圍第10項所述之背光模組之製造方法，其中該金 屬材料為銀。 ' 鲁12·如申請專利範圍第6項所述之背光模組之製造方法，其中該背 板為金屬背板。 13·如申請專利範圍第12項所述之背光模組之製造方法，其中該金 屬背板為鋁背板。 ' 14·如申請專利範圍第6項所述之背光模組之製造方法，其中診 框為聚碳酸酯材料。 、“膠 15·如申請專利範圍第6項所述之背光模組之製造方法，其中診 ®體成型的方式係模内成型方式。 § 12 1287149 七、指定代表圖·· (一) 本案指定代表圖為：第（二）圖。 (二) 本代表圖之元件符號簡單說明·· 背光模組 2 導光板 24 膠框 22 散射板 25 金屬背板 21 光源 26 反射面 23
    八、本案若有化學式時，請揭示最能顯示發明特徵的化學式：
TW094129262A 2005-08-26 2005-08-26 Backlight module and method of manufacturing the same TWI287149B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW094129262A TWI287149B (en) 2005-08-26 2005-08-26 Backlight module and method of manufacturing the same
JP2006228264A JP2007066893A (ja) 2005-08-26 2006-08-24 バックライト装置
US11/510,884 US20070046859A1 (en) 2005-08-26 2006-08-28 Backlight module with integrally molded metal back plate-frame and liquid crystal display using the same

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Application Number Priority Date Filing Date Title
TW094129262A TWI287149B (en) 2005-08-26 2005-08-26 Backlight module and method of manufacturing the same

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TW200708839A TW200708839A (en) 2007-03-01
TWI287149B true TWI287149B (en) 2007-09-21

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US7762709B2 (en) 2008-06-05 2010-07-27 Au Optronics Corporation Backlight module
US8704968B2 (en) 2009-09-18 2014-04-22 Coretronic Corporation Liquid crystal display

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US7671936B2 (en) * 2006-09-21 2010-03-02 Hannstar Display Corp. Liquid crystal display comprising at least one LED and a PCB and a frame having an opening with a narrow portion and a broad portion on a side surface of the frame and backlight module having the same
US7605880B2 (en) * 2006-10-27 2009-10-20 Chunghwa Picture Tubes, Ltd. Liquid crystal display
EP2153273B1 (en) * 2007-06-01 2017-05-10 LG Display Co., Ltd. Display device
TWI355536B (en) * 2007-06-27 2012-01-01 Au Optronics Corp Backlight module and the method for manufacturing
JP4811377B2 (ja) * 2007-09-25 2011-11-09 パナソニック電工株式会社 面発光装置
TWI325938B (en) * 2007-10-31 2010-06-11 Au Optronics Corp Back plate of backlight module and method for manufacturing same
KR20110099516A (ko) * 2010-03-02 2011-09-08 삼성전자주식회사 휴대용 단말기의 엘씨디 모듈
US9244215B2 (en) * 2011-09-09 2016-01-26 Apple Inc. Chassis for display backlight
CN103019311B (zh) * 2011-09-19 2018-01-05 三星电子株式会社 用于便携终端的纤薄型显示模块固定装置
TWI468806B (zh) * 2012-05-08 2015-01-11 Au Optronics Corp 窄邊框設計之顯示裝置及其背光模組
US9851593B2 (en) 2012-09-11 2017-12-26 Apple Inc. LCD frame assembly
TWI472851B (zh) 2012-10-09 2015-02-11 Au Optronics Corp 顯示裝置、背光模組及其框架結構
CN105444050A (zh) * 2013-01-15 2016-03-30 瑞仪光电(苏州)有限公司 光源模块
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KR20150117760A (ko) 2014-04-10 2015-10-21 삼성디스플레이 주식회사 표시 장치
KR102627073B1 (ko) 2016-11-30 2024-01-19 삼성디스플레이 주식회사 백라이트 유닛, 표시 장치 및 표시 장치의 제조 방법
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CN110703483B (zh) * 2019-11-01 2022-08-19 深圳创维－Rgb电子有限公司 液晶显示装置和电子设备

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US7762709B2 (en) 2008-06-05 2010-07-27 Au Optronics Corporation Backlight module
US8704968B2 (en) 2009-09-18 2014-04-22 Coretronic Corporation Liquid crystal display

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