JP4855845B2 - 発光ダイオードパッケージ製造方法、バックライトユニット及び液晶表示装置 - Google Patents
発光ダイオードパッケージ製造方法、バックライトユニット及び液晶表示装置 Download PDFInfo
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- JP4855845B2 JP4855845B2 JP2006172279A JP2006172279A JP4855845B2 JP 4855845 B2 JP4855845 B2 JP 4855845B2 JP 2006172279 A JP2006172279 A JP 2006172279A JP 2006172279 A JP2006172279 A JP 2006172279A JP 4855845 B2 JP4855845 B2 JP 4855845B2
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- light emitting
- emitting diode
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- heat dissipation
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- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 239000004973 liquid crystal related substance Substances 0.000 title description 48
- 230000017525 heat dissipation Effects 0.000 claims description 58
- 239000000758 substrate Substances 0.000 claims description 43
- 239000000853 adhesive Substances 0.000 claims description 35
- 230000001070 adhesive effect Effects 0.000 claims description 35
- 238000005476 soldering Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- 229910052710 silicon Inorganic materials 0.000 description 21
- 239000010703 silicon Substances 0.000 description 21
- 230000008569 process Effects 0.000 description 16
- 229910000679 solder Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0209—External configuration of printed circuit board adapted for heat dissipation, e.g. lay-out of conductors, coatings
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
- H05K1/0206—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate by printed thermal vias
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
- H01L33/641—Heat extraction or cooling elements characterized by the materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/056—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an organic insulating layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/0108—Transparent
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0302—Properties and characteristics in general
- H05K2201/0305—Solder used for other purposes than connections between PCB or components, e.g. for filling vias or for programmable patterns
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09781—Dummy conductors, i.e. not used for normal transport of current; Dummy electrodes of components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10954—Other details of electrical connections
- H05K2201/10969—Metallic case or integral heatsink of component electrically connected to a pad on PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Led Device Packages (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Description
図1に図示されたように、液晶表示装置は、映像をディスプレイする液晶パネル10と、光を提供するバックライトユニットと、前記バックライトユニットを収納する下部ケース14を備えている。
図2に図示されたように、発光ダイオードパッケージ50は、最下端に形成される基板33と、前記基板33の上部に形成される絶縁層32と、前記絶縁層の上部に形成される電極パターン28とを含み、前記電極パターン28間の電気的干渉を防止する所定の空間29が、それぞれの電極パターン28の間に形成され、前記発光ダイオード15が実装される前記電極パターン28の上部に、熱伝導性接着剤30が付着される。
さらに、前記発光ダイオードパッケージ50は、端子部24と電極パターン28との連結のために、電極接着物27と端子接着物26とを含む。
したがって、変形したシリコン22とプラスチックレンズ23により光の強度差が発生して、不均一な輝度により画像品質が低下する問題がある。
なお、本発明によって発光ダイオードパッケージが実装されて、光効率を向上させたバックライトユニット及び液晶表示装置を提供することにその目的がある。
前記セラミックには、例えば、アルミナなどがある。
前記アルミナは、耐熱性、耐化学性及び機械的強度が優れており、放射線放出が少ないという長所を有している。
そして、前記絶縁層132は、放熱効果を極大化するために、熱伝導性の良い物質を使用する。
なお、両側の電極パターン128上部に、電極接着物126を形成する。
前記放熱層形成領域は、発光ダイオードのボディ部が配置される領域と対応する領域とすることが好ましい。
前記放熱層形成領域は、前記基板を露出させる。
なお、前記両側の電極パターン128上部に、電極接着物126を形成する。
ここで、前記発光ダイオード単品は、ボディ部124と、端子部125と、発光チップ121とを含む。
したがって、ボディ部は、導電性ボールを含むペーストにより、基板上部に接着固定される。
121:発光チップ
122:シリコン
123:プラスチックレンズ
124:ボーディ部
125:端子部
126:端子接着物
128:電極パターン
129:所定の空間
130:放熱層
132:絶縁層
133:アルミナ
135:シリコン注入器
Claims (3)
- 発光ダイオードチップと端子部を備えたボディ部を準備する工程と、
基板上に絶縁層を形成する工程と、
前記絶縁層上に互いに同一の層に形成された第1の電極パターン及び第2の電極パターンを含む電極パターンを形成する工程と、
前記第2の電極パターン上にソルダーリング物質からなる電極接着物を形成するとともに前記第1の電極パターン上に前記電極接着物と同一の物質からなる放熱層を形成する工程と、
前記第2の電極パターンと前記端子部、及び前記第1の電極パターンと前記ボディ部をソルダーリングする工程と
を含み、
前記ソルダーリングする工程の後に、前記ボディ部上にレンズを結合する工程を含み、
前記端子部は前記ボディ部の両側から引出され、前記絶縁層の上部に所定の空間を置いて形成されて前記第2の電極パターンと接触し、前記レンズは前記発光ダイオードチップが形成された前記ボディ部の上面を覆うように形成され、前記ボディ部は前記放熱層及び前記発光ダイオードチップとそれぞれ直接接触されていることを特徴とする発光ダイオードパッケージの製造方法。
- 前記基板がセラミック材質からなることを特徴とする請求項1に記載の発光ダイオードパッケージ製造方法。
- 前記セラミックがアルミナであることを特徴とする請求項2に記載の発光ダイオードパッケージの製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050058390A KR101232505B1 (ko) | 2005-06-30 | 2005-06-30 | 발광다이오드 패키지 제조방법, 백라이트 유닛 및액정표시장치 |
KR10-2005-0058390 | 2005-06-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007013143A JP2007013143A (ja) | 2007-01-18 |
JP4855845B2 true JP4855845B2 (ja) | 2012-01-18 |
Family
ID=37588600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006172279A Expired - Fee Related JP4855845B2 (ja) | 2005-06-30 | 2006-06-22 | 発光ダイオードパッケージ製造方法、バックライトユニット及び液晶表示装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070001564A1 (ja) |
JP (1) | JP4855845B2 (ja) |
KR (1) | KR101232505B1 (ja) |
CN (2) | CN102522464A (ja) |
Families Citing this family (17)
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US7304418B2 (en) * | 2003-10-24 | 2007-12-04 | Seiko Epson Corporation | Light source apparatus with light-emitting chip which generates light and heat |
US7667378B2 (en) * | 2006-11-14 | 2010-02-23 | Epson Imaging Devices Corporation | Illuminating device, electro-optic device, and electronic apparatus |
WO2009022808A2 (en) * | 2007-08-13 | 2009-02-19 | Lg Electronics Inc. | Circuit board for light emitting device package and light emitting unit using the same |
KR101064793B1 (ko) * | 2009-06-08 | 2011-09-14 | 박종진 | 방열엘이디보드 |
KR101102077B1 (ko) * | 2009-07-31 | 2012-01-04 | (주)지피오무역 | 발광 모듈 및 이를 갖는 발광 장치 |
KR101301317B1 (ko) | 2009-08-03 | 2013-08-29 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 이용한 액정표시장치 |
CN102005530B (zh) * | 2010-10-15 | 2016-06-01 | 深圳市中庆微科技开发有限公司 | 一种大功率led散热单元 |
KR101868138B1 (ko) * | 2010-11-11 | 2018-06-18 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 이용한 액정표시장치 |
KR101101709B1 (ko) * | 2010-12-16 | 2012-01-05 | 한국세라믹기술원 | Led 어레이 방열모듈 및 이의 제조방법 |
KR101783955B1 (ko) * | 2011-02-10 | 2017-10-11 | 삼성디스플레이 주식회사 | 발광 다이오드 패키지 및 이를 구비한 백라이트 유닛 |
KR20120118686A (ko) | 2011-04-19 | 2012-10-29 | 엘지이노텍 주식회사 | 발광소자 모듈 |
US20130056749A1 (en) * | 2011-09-07 | 2013-03-07 | Michael Tischler | Broad-area lighting systems |
KR101673259B1 (ko) | 2015-02-17 | 2016-11-07 | 엘지전자 주식회사 | 반도체 발광 소자를 이용한 디스플레이 장치 |
KR101638134B1 (ko) | 2015-05-15 | 2016-07-13 | 순천대학교 산학협력단 | 발광다이오드 장치 |
US10787303B2 (en) | 2016-05-29 | 2020-09-29 | Cellulose Material Solutions, LLC | Packaging insulation products and methods of making and using same |
US11078007B2 (en) | 2016-06-27 | 2021-08-03 | Cellulose Material Solutions, LLC | Thermoplastic packaging insulation products and methods of making and using same |
CN111584346B (zh) * | 2020-05-28 | 2021-02-12 | 浙江大学 | 具有热沉结构的GaN器件及其制备方法 |
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2005
- 2005-06-30 KR KR1020050058390A patent/KR101232505B1/ko active IP Right Grant
-
2006
- 2006-06-14 CN CN2011104442055A patent/CN102522464A/zh active Pending
- 2006-06-14 CN CNA2006100918998A patent/CN1893129A/zh active Pending
- 2006-06-20 US US11/455,708 patent/US20070001564A1/en not_active Abandoned
- 2006-06-22 JP JP2006172279A patent/JP4855845B2/ja not_active Expired - Fee Related
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KR20070002732A (ko) | 2007-01-05 |
KR101232505B1 (ko) | 2013-02-12 |
JP2007013143A (ja) | 2007-01-18 |
CN1893129A (zh) | 2007-01-10 |
US20070001564A1 (en) | 2007-01-04 |
CN102522464A (zh) | 2012-06-27 |
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