KR20050021919A - 발광 소자 및 그의 제조 방법 - Google Patents
발광 소자 및 그의 제조 방법 Download PDFInfo
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- KR20050021919A KR20050021919A KR1020040068001A KR20040068001A KR20050021919A KR 20050021919 A KR20050021919 A KR 20050021919A KR 1020040068001 A KR1020040068001 A KR 1020040068001A KR 20040068001 A KR20040068001 A KR 20040068001A KR 20050021919 A KR20050021919 A KR 20050021919A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 182
- 229920000642 polymer Polymers 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 53
- 239000002019 doping agent Substances 0.000 claims abstract description 41
- 239000002052 molecular layer Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 15
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- 238000009792 diffusion process Methods 0.000 claims description 2
- FVKFHMNJTHKMRX-UHFFFAOYSA-N 3,4,6,7,8,9-hexahydro-2H-pyrimido[1,2-a]pyrimidine Chemical compound C1CCN2CCCNC2=N1 FVKFHMNJTHKMRX-UHFFFAOYSA-N 0.000 claims 2
- 239000007858 starting material Substances 0.000 claims 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 19
- 239000007924 injection Substances 0.000 description 19
- 230000005525 hole transport Effects 0.000 description 11
- 239000002800 charge carrier Substances 0.000 description 7
- DHDHJYNTEFLIHY-UHFFFAOYSA-N 4,7-diphenyl-1,10-phenanthroline Chemical compound C1=CC=CC=C1C1=CC=NC2=C1C=CC1=C(C=3C=CC=CC=3)C=CN=C21 DHDHJYNTEFLIHY-UHFFFAOYSA-N 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 5
- 239000000370 acceptor Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000004770 highest occupied molecular orbital Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- RICKKZXCGCSLIU-UHFFFAOYSA-N 2-[2-[carboxymethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]ethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]acetic acid Chemical compound CC1=NC=C(CO)C(CN(CCN(CC(O)=O)CC=2C(=C(C)N=CC=2CO)O)CC(O)=O)=C1O RICKKZXCGCSLIU-UHFFFAOYSA-N 0.000 description 2
- 229920000144 PEDOT:PSS Polymers 0.000 description 2
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- DCZNSJVFOQPSRV-UHFFFAOYSA-N n,n-diphenyl-4-[4-(n-phenylanilino)phenyl]aniline Chemical compound C1=CC=CC=C1N(C=1C=CC(=CC=1)C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 DCZNSJVFOQPSRV-UHFFFAOYSA-N 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IXHWGNYCZPISET-UHFFFAOYSA-N 2-[4-(dicyanomethylidene)-2,3,5,6-tetrafluorocyclohexa-2,5-dien-1-ylidene]propanedinitrile Chemical compound FC1=C(F)C(=C(C#N)C#N)C(F)=C(F)C1=C(C#N)C#N IXHWGNYCZPISET-UHFFFAOYSA-N 0.000 description 1
- UPSWHSOSMRAWEH-UHFFFAOYSA-N 2-n,3-n,4-n-tris(3-methylphenyl)-1-n,1-n,2-n,3-n,4-n-pentakis-phenylbenzene-1,2,3,4-tetramine Chemical compound CC1=CC=CC(N(C=2C=CC=CC=2)C=2C(=C(N(C=3C=CC=CC=3)C=3C=C(C)C=CC=3)C(N(C=3C=CC=CC=3)C=3C=CC=CC=3)=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)=C1 UPSWHSOSMRAWEH-UHFFFAOYSA-N 0.000 description 1
- DIVZFUBWFAOMCW-UHFFFAOYSA-N 4-n-(3-methylphenyl)-1-n,1-n-bis[4-(n-(3-methylphenyl)anilino)phenyl]-4-n-phenylbenzene-1,4-diamine Chemical compound CC1=CC=CC(N(C=2C=CC=CC=2)C=2C=CC(=CC=2)N(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)=C1 DIVZFUBWFAOMCW-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 1
- 229910000024 caesium carbonate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004776 molecular orbital Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
- H10K50/155—Hole transporting layers comprising dopants
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/16—Electron transporting layers
- H10K50/165—Electron transporting layers comprising dopants
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
- H10K50/171—Electron injection layers
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/30—Doping active layers, e.g. electron transporting layers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
- H10K85/1135—Polyethylene dioxythiophene [PEDOT]; Derivatives thereof
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
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- Inorganic Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims (31)
- 기판 위에 놓인 베이스 콘택과 커버 콘택 사이에 폴리머로 된 폴리머층들 및 진공 증착된 저분자들로 이루어진 분자층들과 같은 다수의 유기층들을 포함하는 발광 소자로서,하나 이상의 폴리머층(3; 4) 및 2개의 분자층(5; 6)이 배치되고,- 상기 커버 콘택(7)이 캐소드인 경우, 상기 커버 콘택(7) 다음에 놓이는 층이 전자를 수송하는 분자층으로서 형성되고, 상기 분자층은 유기 도너 또는 무기 도너로 도핑되며, n형 도펀트는 유기질인 주 물질과 도너 형태의 도펀트 물질을 함유하며 200 g/mol보다 큰 분자질량을 가지고,- 상기 커버 콘택(7)이 애노드인 경우, 상기 커버 콘택(7) 다음에 놓이는 층이 p형 정공을 수송하는 분자층으로서 형성되고, 상기 분자층은 유기 억셉터 또는 무기 억셉터로 도핑되며, 상기 도펀트는 유기질인 주 물질과 억셉터 형태의 도펀트 물질을 함유하고 200 g/mol보다 큰 분자질량을 가지는, 발광 소자.
- 제 1항에 있어서,발광층과 수송층을 동시에 형성하는 상기 폴리머층이 배치되는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,2개 이상의 상기 폴리머층(3; 4)이 배치되는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 도핑된 분자층이 단 1개만 배치되는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,,상기 도핑된 층(9)의 매트릭스 재료가 상기 중간층(5)의 매트릭스 재료와 동일한, 발광 소자.
- 제 1항 또는 제 2항에 있어서,,상기 베이스 콘택(2) 위에 하나 이상의 상기 도핑된 분자층 또는 비도핑 분자층이 배치되고, 상기 분자층들의 면들 중 상기 베이스 콘택(2)의 반대쪽 면 위에 하나 이상의 상기 폴리머층이 배치되는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 폴리머층이 배치되고, 상기 폴리머층의 면들 중 상기 베이스 콘택(2)쪽 면과 상기 커버 콘택(7)쪽 면에 각각 1개의 분자층이 접하는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 콘택들(2; 7)이 투명하게 형성되는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 발광 소자는, 연결층에 의해 서로 전기적으로 연결되고 빛을 방출하는 동일한 소자들이 다중 배열된 구조를 갖는, 발광 소자.
- 제 9항에 있어서,상기 연결층은 콘택을 가지며, 상기 콘택을 통해 제어될 수 있는, 발광 소자.
- 제 9항 또는 제 10항에 있어서,상기 연결층 및/또는 상기 콘택이 투명하게 구현되는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 전자 수송층 내 도너 도펀트는 hpp(1,3,4,6,7,8- hexahydro-2H-pyrimido-[1,2-a]-pyrimidine)를 함유한 텅스텐-패들휠(paddle wheel)인, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 도핑된 층은 1E-7 S/cm 내지 1E-3 S/cm의 전도도를 갖는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 도핑된 층은 1E-6 S/cm 내지 5E-5 S/cm의 전도도를 갖는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 비도핑 중간층의 전도도는 상기 도핑된 층의 전도도보다 1/2 이상 더 낮은, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 도핑된 층은 40 nm 내지 500 nm의 두께를 갖는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 도핑된 층은 50 nm 내지 300 nm의 두께를 갖는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 비도핑 중간층은 2 nm 내지 30 nm의 두께를 갖는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 비도핑 중간층은 5 nm 내지 15 nm의 두께를 갖는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 비도핑 층은 상기 도핑된 층보다 더 얇게 형성되는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 도너 도펀트는 4.1 eV 미만의 이온화 퍼텐셜을 갖는, 발광 소자.
- 제 1항 또는 제 2항에 있어서,상기 도펀트의 농도는 유기 도펀트의 경우 1:1000 내지 1:20이고, 무기 도펀트의 경우 1:1000 내지 3:1인, 발광 소자.
- 기판 위에 베이스 콘택, 다수의 층들 및 마지막 커버 콘택이 순서대로 제공되는, 제 1항 또는 제 2항에 따른 발광 소자를 제조하기 위한 방법으로서,상기 층들 중 적어도 하나는 폴리머층으로서 증착되고, 상기 층들 중 적어도 하나는 분자층으로서 증착되며, 상기 분자층은 도핑되는, 발광 소자 제조 방법.
- 제 23항에 있어서,상기 분자층의 도핑은 진공 상태에서 독립적으로 제어된 2개의 소오스로부터 Co-evaporation 공정으로서 이루어지는, 발광 소자 제어 방법.
- 제 23항에 있어서,상기 도펀트는 우선 진공 상태에서 전구 물질로부터 생성되고, 상기 전구 물질로서 작용하는 출발 물질은 증발되며, 상기 출발 물질은 상기 증발 공정동안 상기 도펀트를 형성하는, 발광 소자 제조 방법.
- 제 23항에 있어서,상기 도펀트 농도는 유기 도펀트의 경우 1:1000 내지 1:20이고, 무기 도펀트의 경우 1:1000 내지 3:1인, 발광 소자 제조 방법.
- 제 23항에 있어서,상기 폴리머층의 증착은 잉크젯 프린팅의 원리에 따라 이루어지는, 발광 소자 제조 방법.
- 제 27항에 있어서,멀티컬러 OLED의 제조를 위해 적색, 녹색 및 청색 픽셀이 나란히 형성되는 방식으로 상기 발광층(4)의 측면이 상기 잉크젯 프린팅을 통해 구조화되는, 발광 소자 제조 방법.
- 제 23항에 있어서,상기 모든 층들의 두께는 0.1 nm 내지 1 ㎛인, 발광 소자 제조 방법.
- 제 23항에 있어서,상기 폴리머층들 중 하나 이상의 층이 용액으로부터 혼합층이 제공됨으로써 또는 상기 재료들이 연속적으로 제공됨으로써 제조되고, 이어서 상기 폴리머층 내로 상기 도펀트들이 확산됨으로써 도핑되는, 발광 소자 제조 방법.
- 제 23항에 있어서,상기 전자 수송층에서 도너 도펀트로서 hpp(1,3,4,6,7,8- hexahydro-2H-pyrimido-[1,2-a]-pyrimidine)를 함유한 텅스텐-패들휠이 사용되는, 발광 소자 제조 방법.
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DE10339772B4 (de) * | 2003-08-27 | 2006-07-13 | Novaled Gmbh | Licht emittierendes Bauelement und Verfahren zu seiner Herstellung |
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2003
- 2003-08-27 DE DE10339772A patent/DE10339772B4/de not_active Expired - Fee Related
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2004
- 2004-08-09 TW TW093123848A patent/TWI264841B/zh not_active IP Right Cessation
- 2004-08-10 EP EP04018867.4A patent/EP1511094B1/de not_active Expired - Lifetime
- 2004-08-27 JP JP2004247705A patent/JP5184736B2/ja not_active Expired - Fee Related
- 2004-08-27 KR KR1020040068001A patent/KR100685108B1/ko not_active IP Right Cessation
- 2004-08-27 US US10/928,976 patent/US7355197B2/en not_active Ceased
- 2004-08-27 CN CNB2004100683207A patent/CN100559627C/zh not_active Expired - Lifetime
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2008
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8040044B2 (en) | 2005-07-15 | 2011-10-18 | Lg Chem, Ltd. | Organic light emitting device and method for manufacturing the same |
EP3002797A1 (en) | 2014-09-30 | 2016-04-06 | Novaled GmbH | A light emitting organic device and an active OLED display |
WO2016050834A1 (en) | 2014-09-30 | 2016-04-07 | Novaled Gmbh | Active oled display, method of operating an active oled display and compound |
Also Published As
Publication number | Publication date |
---|---|
KR100685108B1 (ko) | 2007-02-22 |
EP1511094A2 (de) | 2005-03-02 |
DE10339772A1 (de) | 2005-04-14 |
DE10339772B4 (de) | 2006-07-13 |
US7355197B2 (en) | 2008-04-08 |
EP1511094B1 (de) | 2017-02-22 |
TWI264841B (en) | 2006-10-21 |
JP2005072012A (ja) | 2005-03-17 |
CN100559627C (zh) | 2009-11-11 |
CN1619854A (zh) | 2005-05-25 |
US8263429B2 (en) | 2012-09-11 |
JP5184736B2 (ja) | 2013-04-17 |
US20080160669A1 (en) | 2008-07-03 |
USRE43319E1 (en) | 2012-04-24 |
US20050110009A1 (en) | 2005-05-26 |
TW200509431A (en) | 2005-03-01 |
EP1511094A3 (de) | 2005-07-27 |
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