JP4690187B2 - 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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- 238000004519 manufacturing process Methods 0.000 title claims description 24
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- 239000000758 substrate Substances 0.000 claims description 44
- 239000003990 capacitor Substances 0.000 claims description 35
- 239000010408 film Substances 0.000 claims description 34
- 239000010409 thin film Substances 0.000 claims description 32
- 239000012044 organic layer Substances 0.000 claims description 22
- 239000007772 electrode material Substances 0.000 claims description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000011229 interlayer Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 7
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- 230000001629 suppression Effects 0.000 claims description 5
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- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000001259 photo etching Methods 0.000 description 8
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- 239000002356 single layer Substances 0.000 description 6
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- UBSJOWMHLJZVDJ-UHFFFAOYSA-N aluminum neodymium Chemical compound [Al].[Nd] UBSJOWMHLJZVDJ-UHFFFAOYSA-N 0.000 description 4
- 229910021417 amorphous silicon Inorganic materials 0.000 description 4
- 238000000059 patterning Methods 0.000 description 3
- 239000004065 semiconductor Substances 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
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
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- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
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- 238000007641 inkjet printing Methods 0.000 description 2
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- 150000002739 metals Chemical class 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
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- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 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
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005019 vapor deposition process Methods 0.000 description 2
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- 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
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- 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
- H10K59/88—Dummy elements, i.e. elements having non-functional features
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- H05B33/00—Electroluminescent light sources
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1255—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs integrated with passive devices, e.g. auxiliary capacitors
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/13—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body combined with thin-film or thick-film passive components
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- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
- H10K2102/3023—Direction of light emission
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Description
310 バッファ層
329 第1の電極
330 ゲート絶縁層
334 第2の電極
340 層間絶縁層
354 第3の電極
360 保護膜
370 平坦化膜
390 画素定義膜
420 転写層
410 光熱変換層
400 ベース基板
328 第1のダミーパターン
336 第2のダミーパターン
356 第3のダミーパターン
320 多結晶シリコン層パターン
326 ソース領域
324 ドレイン領域
322 チャネル領域
332 ゲート電極
350 ソース電極
352 ドレイン電極
380 画素電極
Claims (24)
- 基板の上部に,画素電極,少なくとも発光層を含む有機層,及び対向電極を含み,
画素定義膜により定義される発光領域と;
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領域と;
下部電極及び上部電極を含むキャパシタ領域と;
を備え,
前記発光領域における画素電極の下部にダミーパターンを含むことを特徴とする,有機電界発光表示素子。 - 前記画素電極は,反射電極であり,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に記載の有機電界発光表示素子。
- 前記画素電極は,前記薄膜トランジスタ領域及び前記キャパシタ領域までに延設されることを特徴とする,請求項1または2に記載の有機電界発光表示素子。
- 前記有機層は,正孔注入層,正孔輸送層,正孔抑制層,電子輸送層及び電子注入層よりなる群から選ばれる1つ以上の層をさらに含むことを特徴とする,請求項1〜3のいずれかに記載の有機電界発光表示素子。
- 前記ダミーパターンは,多結晶シリコン層パターン,ゲート電極物質及びソース/ドレイン電極物質よりなる群から選ばれる2つ以上の積層構造を有することを特徴とする,請求項1〜4のいずれかに記載の有機電界発光表示素子。
- 前記画素定義膜は,3000Å以下の厚みを有することを特徴とする,請求項1〜5のいずれかに記載の有機電界発光表示素子。
- 前記ダミーパターンは、前記発光領域において前記基板から前記画素電極までの高さを嵩上げする、請求項1に記載の有機電界発光表示素子。
- 前記画素電極の下部に位置する絶縁膜をさらに含み、
前記基板から前記発光領域の前記ダミーパターン上に形成される前記絶縁膜上部までの厚みは、前記基板から前記薄膜トランジスタ領域及び前記キャパシタ領域に形成される前記絶縁膜上部までの厚みよりも大きいか又は同一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。 - 第1の領域,第2の領域及び第3の領域に区分される基板の上部に,第1の導電層パターンを各々形成する工程と;
前記第1の導電層パターンを含む基板の上部に,第1の絶縁層を形成する工程と;
前記第1の領域,前記第2の領域及び前記第3の領域に第2の導電層パターンを各々形成する工程と;
全体表面の上部に第2の絶縁層を形成する工程と;
前記第1の領域,第2の領域及び第3の領域に第3の導電層パターンを各々形成する工程と;
全体表面の上部に第3の絶縁層を形成する工程と;
前記第1の領域に,前記第2の領域の第3の導電層パターンに接続される画素電極を形成する工程と;
全体表面の上部に,前記画素電極を露出させる第4の絶縁層パターンを形成する工程と;
前記画素電極の上部に,少なくとも発光層を含む有機層を形成する工程と;
全体表面の上部に対向電極を形成する工程と;
を備えることを特徴とする,有機電界発光表示素子の製造方法。 - 前記第1の領域は発光領域であり,前記第2の領域は薄膜トランジスタ領域であり,前記第3の領域はキャパシタ領域であることを特徴とする,請求項9に記載の有機電界発光表示素子の製造方法。
- 前記第1の導電層パターンは,第1のダミーパターン,チャネル領域とソース/ドレイン領域を含む多結晶シリコン層パターン,及びキャパシタの第1の電極であることを特徴とする,請求項9または10に記載の有機電界発光表示素子の製造方法。
- 前記第1の絶縁層は,ゲート絶縁層であることを特徴とする,請求項9〜11のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記第2の導電層パターンは,第2のダミーパターン,ゲート電極及びキャパシタの第2の電極であることを特徴とする,請求項9〜12のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記第2の絶縁層は,層間絶縁層であることを特徴とする,請求項9〜13のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記第3の導電層パターンは,第3のダミーパターン,ソース/ドレイン電極及びキャパシタの第3の電極であることを特徴とする,請求項9〜14のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記第3の絶縁層は,保護膜,平坦化膜またはそれらの積層構造であることを特徴とする,請求項9〜15のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記画素電極は,反射電極であることを特徴とする,請求項9〜16のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記画素電極は,第1の領域,第2の領域及び第3の領域にわたって形成されることを特徴とする,請求項9〜17のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記第4の絶縁層パターンは,画素定義膜であることを特徴とする,請求項9〜18のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記第4の絶縁層パターンは,3000Å以下に形成されることを特徴とする,請求項9〜19のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記有機層は,正孔注入層,正孔輸送層,正孔抑制層,電子輸送層及び電子注入層よりなる群から選ばれる1つ以上の層をさらに含むことを特徴とする,請求項9〜20のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記有機層は,レーザ転写方法で形成されることを特徴とする,請求項9〜21のいずれかに記載の有機電界発光表示素子の製造方法。
- 前記第1領域に形成される第1導電層パターン、第2導電層パターン、及び第3導電層パターンは、前記基板から前記第1領域に形成される前記画素電極までの高さを嵩上げする、請求項9に記載の有機電界発光表示素子の製造方法。
- 前記基板から前記第1領域の前記第3の導電層パターン上に形成される前記第3の絶縁層上部までの厚みは、前記基板から前記第2領域及び前記第3領域に形成される前記第3の絶縁層上部までの厚みよりも大きいか又は同一であることを特徴とする、請求項9に記載の有機電界発光表示素子の製造方法。
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KR10-2004-0105146 | 2004-12-13 | ||
KR1020040105146A KR100700642B1 (ko) | 2004-12-13 | 2004-12-13 | 유기전계발광표시소자 및 그 제조방법 |
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JP4690187B2 true JP4690187B2 (ja) | 2011-06-01 |
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US (2) | US7408192B2 (ja) |
EP (1) | EP1670081B1 (ja) |
JP (1) | JP4690187B2 (ja) |
KR (1) | KR100700642B1 (ja) |
CN (1) | CN100448017C (ja) |
DE (1) | DE602005017565D1 (ja) |
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WO2008029060A2 (fr) * | 2006-09-07 | 2008-03-13 | Saint-Gobain Glass France | Substrat pour dispositif electroluminescent organique, utilisation et procede de fabrication de ce substrat, ainsi que dispositif electroluminescent organique. |
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US7408192B2 (en) | 2008-08-05 |
US20060124933A1 (en) | 2006-06-15 |
KR100700642B1 (ko) | 2007-03-27 |
EP1670081B1 (en) | 2009-11-11 |
CN1790733A (zh) | 2006-06-21 |
CN100448017C (zh) | 2008-12-31 |
EP1670081A3 (en) | 2006-06-21 |
KR20060066512A (ko) | 2006-06-16 |
DE602005017565D1 (de) | 2009-12-24 |
US7867051B2 (en) | 2011-01-11 |
EP1670081A2 (en) | 2006-06-14 |
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