JP5917835B2 - ダブルゲート型薄膜トランジスタ及びこれを備えた有機発光表示装置 - Google Patents
ダブルゲート型薄膜トランジスタ及びこれを備えた有機発光表示装置 Download PDFInfo
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 14
- 239000011368 organic material Substances 0.000 description 9
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- 239000011787 zinc oxide Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 5
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- 229910004205 SiNX Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
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- 239000002356 single layer Substances 0.000 description 3
- 238000004528 spin coating Methods 0.000 description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000767 polyaniline 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
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- YOZHUJDVYMRYDM-UHFFFAOYSA-N 4-(4-anilinophenyl)-3-naphthalen-1-yl-n-phenylaniline Chemical compound C=1C=C(C=2C(=CC(NC=3C=CC=CC=3)=CC=2)C=2C3=CC=CC=C3C=CC=2)C=CC=1NC1=CC=CC=C1 YOZHUJDVYMRYDM-UHFFFAOYSA-N 0.000 description 1
- MBPCKEZNJVJYTC-UHFFFAOYSA-N 4-[4-(n-phenylanilino)phenyl]aniline Chemical compound C1=CC(N)=CC=C1C1=CC=C(N(C=2C=CC=CC=2)C=2C=CC=CC=2)C=C1 MBPCKEZNJVJYTC-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
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- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
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- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 239000003230 hygroscopic agent Substances 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Inorganic materials [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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- 238000005240 physical vapour deposition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polyethylene dihydroxythiophene Polymers 0.000 description 1
- 229920002098 polyfluorene Polymers 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L27/1225—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 with a particular composition, shape or crystalline structure of the active layer with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
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Description
13 ゲート絶縁膜
15 層間絶縁膜
17 平坦化膜
19 画素定義膜
21 ボトムゲート電極
22 活性層
23,24 ソース及びドレイン電極
25 トップゲート電極
31 画素電極
33 中間層
35 対向電極
41 第1電極
43 第2電極
100 有機発光パネル
200 スキャンドライバ
300 データドライバ
400 タイミングコントローラ
Claims (12)
- 基板上に形成されたボトムゲート電極と、
前記ボトムゲート電極の上部に形成された活性層と、
前記活性層の上部に形成されたソース/ドレイン電極と、
前記ソース/ドレイン電極を含む前記基板上に形成され、前記活性層に対応する開口を備えた平坦化膜と、
前記開口に形成されたトップゲート電極と、を備え、
しきい電圧を+方向にシフトさせるために、
前記ボトムゲート電極に正の定電圧が印加され、前記トップゲート電極に負の定電圧が印加され、
前記トップゲート電極は、有機発光表示装置の対向電極として機能するカソードであることを特徴とするダブルゲート型薄膜トランジスタ。 - 前記活性層は、酸化物半導体を含むことを特徴とする請求項1に記載のダブルゲート型薄膜トランジスタ。
- 前記ボトムゲート電極と前記活性層との間に介されたゲート絶縁膜と、
前記活性層と前記ソース/ドレイン電極との間に介された層間絶縁膜と、をさらに備えることを特徴とする請求項1又は2に記載のダブルゲート型薄膜トランジスタ。 - 薄膜トランジスタと電気的に連結され、平坦化膜の上部に形成された画素電極と、
前記画素電極の上部に形成された画素定義膜と、
前記平坦化膜及び前記画素定義膜をエッチングして、前記薄膜トランジスタの活性層に対応する前記平坦化膜の一部を露出させる第1開口及び前記画素電極の一部を露出させる第2開口に形成された対向電極と、を備え、
前記薄膜トランジスタは、
基板上に形成されたボトムゲート電極と、
前記ボトムゲート電極の上部に形成された前記活性層と、
前記活性層の上部に形成されたソース/ドレイン電極と、
前記第1開口に形成されたトップゲート電極と、を備え、
前記薄膜トランジスタのしきい電圧を+方向にシフトさせるために、
前記ボトムゲート電極に正の定電圧が印加され、前記トップゲート電極に負の定電圧が印加され、
前記トップゲート電極は、前記対向電極として機能するカソードであることを特徴とする有機発光表示装置。 - 前記ソース/ドレイン電極のうち一つの電極が、前記画素電極と連結されたことを特徴とする請求項4に記載の有機発光表示装置。
- 前記ボトムゲート電極と前記活性層との間に介されたゲート絶縁膜と、
前記活性層と前記ソース/ドレイン電極との間に介された層間絶縁膜と、をさらに備えることを特徴とする請求項4又は5に記載の有機発光表示装置。 - 前記活性層は、酸化物半導体を含むことを特徴とする請求項4乃至6のいずれか一項に記載の有機発光表示装置。
- 平坦化膜の上部に薄膜トランジスタと電気的に連結される画素電極を形成する工程と、
前記画素電極の上部に画素定義膜を形成する工程と、
前記平坦化膜及び前記画素定義膜をエッチングして、前記薄膜トランジスタの活性層に対応する前記平坦化膜の一部を露出させる第1開口、及び前記画素電極の一部を露出させる第2開口を形成する工程と、
前記第1開口及び前記第2開口の上部に対向電極を形成する工程と、
前記画素電極を形成する工程以前に、前記薄膜トランジスタを形成するために、
基板上にボトムゲート電極を形成する工程と、
前記ボトムゲート電極の上部に前記活性層を形成する工程と、
前記活性層の上部にソース/ドレイン電極を形成する工程と、
前記ソース/ドレイン電極の上部に平坦化膜を形成する工程と、をさらに含み、
前記第1開口及び前記第2開口の上部に対向電極を形成する工程により形成された前記第1開口上における対向電極はトップゲート電極とされ、
前記薄膜トランジスタのしきい電圧を+方向にシフトさせるために、
前記ボトムゲート電極に正の定電圧が印加され、前記トップゲート電極に負の定電圧が印加され、
前記トップゲート電極は前記対向電極として機能するカソードであることを特徴とする有機発光表示装置の製造方法。 - 前記画素電極は、前記ソース/ドレイン電極のうち一つの電極と電気的に連結されることを特徴とする請求項8に記載の有機発光表示装置の製造方法。
- 前記対向電極を形成する工程以前に、
前記第2開口に発光層を形成する工程をさらに含むことを特徴とする請求項8又は9記載の有機発光表示装置の製造方法。 - 前記ボトムゲート電極と前記活性層との間にゲート絶縁膜を形成する工程と、
前記活性層と前記ソース/ドレイン電極との間に層間絶縁膜を形成する工程と、をさらに含むことを特徴とする請求項8乃至10のいずれか一項に記載の有機発光表示装置の製造方法。 - 基板上にボトムゲート電極を形成する工程と、
前記ボトムゲート電極の上部に活性層を形成する工程と、
前記活性層の上部にソース/ドレイン電極を形成する工程と、
前記ソース/ドレイン電極の上部に平坦化膜を形成する工程と、
前記平坦化膜をエッチングして、前記活性層に対応する開口を形成する工程と、
前記開口にトップゲート電極を形成する工程と、を含み、
しきい電圧を+方向にシフトさせるために、
前記ボトムゲート電極に正の定電圧が印加され、前記トップゲート電極に負の定電圧が印加され、
前記トップゲート電極は、有機発光表示装置の対向電極として機能するカソードであることを特徴とするダブルゲート型薄膜トランジスタの製造方法。
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KR20120004786A (ko) | 2012-01-13 |
US8853016B2 (en) | 2014-10-07 |
JP2012019206A (ja) | 2012-01-26 |
CN102315278B (zh) | 2016-08-03 |
US8395157B2 (en) | 2013-03-12 |
CN102315278A (zh) | 2012-01-11 |
KR101108176B1 (ko) | 2012-01-31 |
US20120007084A1 (en) | 2012-01-12 |
TWI574420B (zh) | 2017-03-11 |
TW201212239A (en) | 2012-03-16 |
US20130157399A1 (en) | 2013-06-20 |
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