JP4308167B2 - 有機電界発光表示素子及びその製造方法 - Google Patents
有機電界発光表示素子及びその製造方法 Download PDFInfo
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- JP4308167B2 JP4308167B2 JP2005147062A JP2005147062A JP4308167B2 JP 4308167 B2 JP4308167 B2 JP 4308167B2 JP 2005147062 A JP2005147062 A JP 2005147062A JP 2005147062 A JP2005147062 A JP 2005147062A JP 4308167 B2 JP4308167 B2 JP 4308167B2
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- 238000000034 method Methods 0.000 title claims description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000010408 film Substances 0.000 claims description 132
- 239000010409 thin film Substances 0.000 claims description 23
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 22
- 229910052709 silver Inorganic materials 0.000 claims description 22
- 239000004332 silver Substances 0.000 claims description 22
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 18
- 238000001259 photo etching Methods 0.000 claims description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 29
- 229920001296 polysiloxane Polymers 0.000 description 11
- 238000002310 reflectometry Methods 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000005401 electroluminescence Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- UBSJOWMHLJZVDJ-UHFFFAOYSA-N aluminum neodymium Chemical compound [Al].[Nd] UBSJOWMHLJZVDJ-UHFFFAOYSA-N 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- 239000004642 Polyimide Substances 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
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical class C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 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
- 230000005525 hole transport Effects 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/878—Arrangements for extracting light from the devices comprising reflective means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/26—Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
-
- 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
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/81—Anodes
- H10K50/818—Reflective anodes, e.g. ITO combined with thick metallic layers
-
- 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
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
- H10K2102/3023—Direction of light emission
- H10K2102/3026—Top emission
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/351—Thickness
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
110、210 緩衝膜
120、220 ソース/ドレイン領域
122、222 多結晶シリコーンパターン
130、230 ゲート絶縁膜
132、232 ゲート電極
140、240 層間絶縁膜
150、250 ソース電極
152、252 ドレイン電極
160、260 保護膜
170、270 第1絶縁膜
180a、180b、280 反射膜パターン
182 画素電極
282a 下部画素電極
282b 上部画素電極
190、290 第2絶縁膜パターン
192、292 発光層
Claims (13)
- 基板上部にゲート電極及びソース/ドレイン電極を含む薄膜トランジスタと;
前記基板上部の絶縁膜内に形成されたビアコンタクトホールを介して前記ソース/ドレイン電極のうちいずれか一つに接続され、下部画素電極、反射膜パターン及び上部画素電極で構成される三重構造の画素電極と;
前記上部画素電極上部に設けられ、少なくとも発光層を有する有機膜層と;
前記有機膜層上部に設けられる対向電極と;
を含み、
前記下部画素電極は、ITO、IZO、In 2 O 3 またはSn 2 O 3 で形成され、前記下部画素電極の厚さは、100〜1000Åであり、
前記反射膜パターンは、銀(Ag)、プラチナ(Pt)又はパラジウム(Pd)で形成され、
前記上部画素電極は、前記下部画素電極と同一の物質を用いて形成され、前記上部画素電極の厚さは、20〜100Åであることを特徴とする有機電界発光表示素子。 - 前記絶縁膜は保護膜と平坦化膜の積層構造であることを特徴とする請求項1に記載の有機電界発光表示素子。
- 前記絶縁膜は無機絶縁膜と有機絶縁膜の積層構造であることを特徴とする請求項1に記載の有機電界発光表示素子。
- 前記反射膜パターンは銀(Ag)であることを特徴とする請求項1に記載の有機電界発光表示素子。
- 前記反射膜パターンの厚さは500〜3000Åであることを特徴とする請求項1〜4のいずれか1項に記載の有機電界発光表示素子。
- 前記対向電極は透明電極であることを特徴とする請求項1〜5のいずれか1項に記載の有機電界発光表示素子。
- 基板上部にゲート電極及びソース/ドレイン電極を含む薄膜トランジスタを形成する工程と;
全体表面上部に絶縁膜を形成する工程と;
前記絶縁膜をフォトエッチング工程でエッチングして前記ソース/ドレイン電極のうちいずれか一つの電極を露出させるビアコンタクトホールを形成する工程と;
全体表面上部に下部画素電極用薄膜、反射膜及び上部画素電極用薄膜の積層構造を形成する工程と;
前記積層構造をエッチングして前記ビアコンタクトホールを介して前記ソース/ドレイン電極のうちいずれか一つに接続されて下部画素電極、反射膜パターン及び上部画素電極で構成される三重構造の画素電極を形成する工程と;
前記上部画素電極上部に少なくとも発光層を含む有機膜を形成する工程と;
前記有機膜上部に対向電極を形成する工程と;
を含み、
前記下部画素電極は、ITO、IZO、In 2 O 3 またはSn 2 O 3 で形成され、前記下部画素電極の厚さは、100〜1000Åであり、
前記反射膜パターンは、銀(Ag)、プラチナ(Pt)又はパラジウム(Pd)で形成され、
前記上部画素電極は、前記下部画素電極と同一の物質を用いて形成され、前記上部画素電極の厚さは、20〜100Åであることを特徴とする有機電界発光表示素子の製造方法。 - 前記絶縁膜は保護膜と平坦化膜の積層構造で形成されることを特徴とする請求項7に記載の有機電界発光表示素子の製造方法。
- 前記絶縁膜は無機絶縁膜と有機絶縁膜の積層構造で形成されることを特徴とする請求項7に記載の有機電界発光表示素子の製造方法。
- 前記ビアコンタクトホールは2回のフォトエッチング工程で形成されることを特徴とする請求項7〜9のいずれか1項に記載の有機電界発光表示素子の製造方法。
- 前記反射膜パターンは銀(Ag)で形成されることを特徴とする請求項7に記載の有機電界発光表示素子の製造方法。
- 前記反射膜パターンの厚さは500〜3000Åで形成されることを特徴とする請求項7〜11のいずれか1項に記載の有機電界発光表示素子の製造方法。
- 前記対向電極は透明電極で形成されることを特徴とする請求項7〜12のいずれか1項に記載の有機電界発光表示素子の製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040038534A KR20050113045A (ko) | 2004-05-28 | 2004-05-28 | 유기 전계 발광 표시 소자 및 그 제조방법 |
Publications (2)
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JP2005340197A JP2005340197A (ja) | 2005-12-08 |
JP4308167B2 true JP4308167B2 (ja) | 2009-08-05 |
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Country Status (5)
Country | Link |
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US (2) | US7579767B2 (ja) |
EP (1) | EP1601031A1 (ja) |
JP (1) | JP4308167B2 (ja) |
KR (1) | KR20050113045A (ja) |
CN (1) | CN1708198B (ja) |
Families Citing this family (34)
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KR100600873B1 (ko) * | 2004-05-28 | 2006-07-14 | 삼성에스디아이 주식회사 | 유기 전계 발광 표시 소자 및 그 제조방법 |
KR101104419B1 (ko) * | 2005-12-14 | 2012-01-12 | 사천홍시현시기건유한공사 | 능동형 유기 발광소자 및 그 제조방법 |
KR100712181B1 (ko) * | 2005-12-14 | 2007-04-27 | 삼성에스디아이 주식회사 | 유기전계발광소자 및 그 제조방법 |
JP4582004B2 (ja) * | 2006-01-13 | 2010-11-17 | セイコーエプソン株式会社 | 発光装置および電子機器 |
JP4809087B2 (ja) * | 2006-03-14 | 2011-11-02 | セイコーエプソン株式会社 | エレクトロルミネッセンス装置、電子機器、およびエレクトロルミネッセンス装置の製造方法 |
KR100730224B1 (ko) * | 2006-08-01 | 2007-06-19 | 삼성에스디아이 주식회사 | 유기발광 표시장치 |
JP5028900B2 (ja) * | 2006-08-01 | 2012-09-19 | カシオ計算機株式会社 | 発光素子を用いたディスプレイパネルの製造方法 |
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CN1708198A (zh) | 2005-12-14 |
US8183063B2 (en) | 2012-05-22 |
US7579767B2 (en) | 2009-08-25 |
EP1601031A1 (en) | 2005-11-30 |
CN1708198B (zh) | 2010-05-05 |
US20050275339A1 (en) | 2005-12-15 |
JP2005340197A (ja) | 2005-12-08 |
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