JP5368014B2 - フレキシブル有機elディスプレイの製造方法 - Google Patents
フレキシブル有機elディスプレイの製造方法 Download PDFInfo
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- JP5368014B2 JP5368014B2 JP2008164382A JP2008164382A JP5368014B2 JP 5368014 B2 JP5368014 B2 JP 5368014B2 JP 2008164382 A JP2008164382 A JP 2008164382A JP 2008164382 A JP2008164382 A JP 2008164382A JP 5368014 B2 JP5368014 B2 JP 5368014B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 34
- 239000010410 layer Substances 0.000 claims description 281
- 239000004065 semiconductor Substances 0.000 claims description 45
- 239000002985 plastic film Substances 0.000 claims description 42
- 229920006255 plastic film Polymers 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 34
- 239000000758 substrate Substances 0.000 claims description 33
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- 239000004642 Polyimide Substances 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 229920001665 Poly-4-vinylphenol Polymers 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 150000004985 diamines Chemical class 0.000 claims description 4
- 150000008064 anhydrides Chemical class 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 150000000000 tetracarboxylic acids Chemical class 0.000 claims description 3
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- 238000000206 photolithography Methods 0.000 description 7
- 239000010931 gold Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000010030 laminating Methods 0.000 description 5
- 238000004040 coloring Methods 0.000 description 4
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- 229920005989 resin Polymers 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
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- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 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 2
- UHXOHPVVEHBKKT-UHFFFAOYSA-N 1-(2,2-diphenylethenyl)-4-[4-(2,2-diphenylethenyl)phenyl]benzene Chemical compound C=1C=C(C=2C=CC(C=C(C=3C=CC=CC=3)C=3C=CC=CC=3)=CC=2)C=CC=1C=C(C=1C=CC=CC=1)C1=CC=CC=C1 UHXOHPVVEHBKKT-UHFFFAOYSA-N 0.000 description 1
- MKZHJJQCUIZEDE-UHFFFAOYSA-N 1-[(2-hydroxy-3-naphthalen-1-yloxypropyl)-propan-2-ylamino]-3-naphthalen-1-yloxypropan-2-ol Chemical compound C1=CC=C2C(OCC(O)CN(CC(O)COC=3C4=CC=CC=C4C=CC=3)C(C)C)=CC=CC2=C1 MKZHJJQCUIZEDE-UHFFFAOYSA-N 0.000 description 1
- LXJLFVRAWOOQDR-UHFFFAOYSA-N 3-(3-aminophenoxy)aniline Chemical compound NC1=CC=CC(OC=2C=C(N)C=CC=2)=C1 LXJLFVRAWOOQDR-UHFFFAOYSA-N 0.000 description 1
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 description 1
- HXWWMGJBPGRWRS-CMDGGOBGSA-N 4- -2-tert-butyl-6- -4h-pyran Chemical compound O1C(C(C)(C)C)=CC(=C(C#N)C#N)C=C1\C=C\C1=CC(C(CCN2CCC3(C)C)(C)C)=C2C3=C1 HXWWMGJBPGRWRS-CMDGGOBGSA-N 0.000 description 1
- UITKHKNFVCYWNG-UHFFFAOYSA-N 4-(3,4-dicarboxybenzoyl)phthalic acid Chemical compound C1=C(C(O)=O)C(C(=O)O)=CC=C1C(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 UITKHKNFVCYWNG-UHFFFAOYSA-N 0.000 description 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- TUQQUUXMCKXGDI-UHFFFAOYSA-N bis(3-aminophenyl)methanone Chemical compound NC1=CC=CC(C(=O)C=2C=C(N)C=CC=2)=C1 TUQQUUXMCKXGDI-UHFFFAOYSA-N 0.000 description 1
- ZLSMCQSGRWNEGX-UHFFFAOYSA-N bis(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=C(N)C=C1 ZLSMCQSGRWNEGX-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- VBVAVBCYMYWNOU-UHFFFAOYSA-N coumarin 6 Chemical compound C1=CC=C2SC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 VBVAVBCYMYWNOU-UHFFFAOYSA-N 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical compound C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- -1 quinolinol aluminum Chemical compound 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- H—ELECTRICITY
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/1222—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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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- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/1218—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 or structure of the substrate
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- H01L27/02—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/1259—Multistep manufacturing methods
- H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
- H01L27/1266—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate the substrate on which the devices are formed not being the final device substrate, e.g. using a temporary substrate
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78603—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the insulating substrate or support
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
- H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
Description
前記TFTの上に第1絶縁層を形成する工程と、前記第1絶縁層を加工することにより、前記TFTの前記ドレイン電極に到達するビアホールを形成する工程と、前記ビアホールを介して前記ドレイン電極に接続される陰極と、前記陰極の上に形成された有機EL層と、前記有機EL層の上に形成された陽極とから構成される前記有機EL素子を前記第1絶縁層の上に形成する工程と、前記有機EL素子の上に第2絶縁層を形成する工程と、前記第2絶縁層の上に接着層を介してプラスチックフィルムを接着する工程と、前記仮基板を前記透明剥離層との界面から剥離することにより、前記プラスチックフィルム上に、前記接着層を介して、前記第2絶縁層、前記有機EL素子、前記第1絶縁層、前記TFT及び前記透明剥離層を転写・形成する工程とを有し、前記プラスチックフィルム上に転写・形成する工程の後に、前記透明剥離層を表面保護層として残すことを特徴とする。
Claims (6)
- 画素ごとにTFT及び有機EL素子が設けられたアクティブマトリクス型のフレキシブル有機ELディスプレイの製造方法であって、
仮基板の上に透明剥離層を形成する工程と、
前記透明剥離層の上方に、下から順に、ゲート電極と、ゲート絶縁層と、ソース電極及びドレイン電極と、酸化物半導体層とから構成される前記TFTを形成する工程と、
前記TFTの上に第1絶縁層を形成する工程と、
前記第1絶縁層を加工することにより、前記TFTの前記ドレイン電極に到達するビアホールを形成する工程と、
前記ビアホールを介して前記ドレイン電極に接続される陰極と、前記陰極の上に形成された有機EL層と、前記有機EL層の上に形成された陽極とから構成される前記有機EL素子を前記第1絶縁層の上に形成する工程と、
前記有機EL素子の上に第2絶縁層を形成する工程と、
前記第2絶縁層の上に接着層を介してプラスチックフィルムを接着する工程と、
前記仮基板を前記透明剥離層との界面から剥離することにより、前記プラスチックフィルム上に、前記接着層を介して、前記第2絶縁層、前記有機EL素子、前記第1絶縁層、前記TFT及び前記透明剥離層を転写・形成する工程とを有し、
前記プラスチックフィルム上に転写・形成する工程の後に、前記透明剥離層を表面保護層として残すことを特徴とするフレキシブル有機ELディスプレイの製造方法。 - 前記透明剥離層を形成する工程の後に、
前記透明剥離層の上に無機絶縁層からなるバッファ層を形成する工程をさらに有することを特徴とする請求項1に記載のフレキシブル有機ELディスプレイの製造方法。 - 前記TFTを形成する工程において、前記ゲート絶縁層は、ポリビニルフェノール、ポリメチルシルセスキオキサン、又はポリイミドが熱処理によって重合・架橋して得られる、水酸基を含まない絶縁層から形成されることを特徴とする請求項1又は2に記載のフレキシブル有機ELディスプレイの製造方法。
- 前記TFTを形成する工程において、前記酸化物半導体層は200乃至300℃の温度で熱処理されることを特徴とする請求項1乃至3のいずれか一項に記載のフレキシブル有機ELディスプレイの製造方法。
- 前記フレキシブル有機ELディスプレイの端側には、前記TFTの前記ゲート電極に電気的に接続されたゲート用接続電極と、前記TFTの前記ソース電極に電気的に接続されたソース用接続電極とがそれぞれ配置された前記外部接続領域が設けられ、
前記プラスチックフィルム上に転写・形成する工程の後に、
前記外部接続領域において、前記表面保護層を含む積層膜を除去することにより前記ゲート用接続電極及び前記ソース用接続電極が露出させることを特徴とする請求項1乃至4のいずれか一項に記載のフレキシブル有機ELディスプレイの製造方法。 - 前記透明剥離層は、テトラカルボン酸(無水物)とジアミンとを縮合させることによって得られるポリイミド層から形成されることを特徴とする請求項1乃至5のいずれか一項に記載のフレキシブル有機ELディスプレイの製造方法。
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