WO2013190841A1 - 被覆方法および有機el素子の製造方法 - Google Patents
被覆方法および有機el素子の製造方法 Download PDFInfo
- Publication number
- WO2013190841A1 WO2013190841A1 PCT/JP2013/003838 JP2013003838W WO2013190841A1 WO 2013190841 A1 WO2013190841 A1 WO 2013190841A1 JP 2013003838 W JP2013003838 W JP 2013003838W WO 2013190841 A1 WO2013190841 A1 WO 2013190841A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mixture
- solvent
- organic
- insulating material
- pixel electrode
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 239000000203 mixture Substances 0.000 claims abstract description 84
- 230000002950 deficient Effects 0.000 claims abstract description 74
- 239000002904 solvent Substances 0.000 claims abstract description 56
- 239000011810 insulating material Substances 0.000 claims abstract description 45
- 238000009835 boiling Methods 0.000 claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 6
- 230000007547 defect Effects 0.000 claims description 82
- 238000000576 coating method Methods 0.000 claims description 49
- 239000000758 substrate Substances 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 20
- 239000002346 layers by function Substances 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 104
- 239000010408 film Substances 0.000 description 69
- 238000005401 electroluminescence Methods 0.000 description 67
- 238000002347 injection Methods 0.000 description 21
- 239000007924 injection Substances 0.000 description 21
- 239000000463 material Substances 0.000 description 20
- 239000003795 chemical substances by application Substances 0.000 description 17
- -1 polyethylene Polymers 0.000 description 17
- 239000011229 interlayer Substances 0.000 description 14
- 238000002156 mixing Methods 0.000 description 12
- 239000007787 solid Substances 0.000 description 11
- 239000002585 base Substances 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 229910052709 silver Inorganic materials 0.000 description 8
- 239000004332 silver Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000010971 suitability test Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 5
- 239000011368 organic material Substances 0.000 description 5
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- SJWFXCIHNDVPSH-UHFFFAOYSA-N octan-2-ol Chemical compound CCCCCCC(C)O SJWFXCIHNDVPSH-UHFFFAOYSA-N 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000009736 wetting Methods 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 239000009719 polyimide resin Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-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
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920003986 novolac Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MVWPVABZQQJTPL-UHFFFAOYSA-N 2,3-diphenylcyclohexa-2,5-diene-1,4-dione Chemical class O=C1C=CC(=O)C(C=2C=CC=CC=2)=C1C1=CC=CC=C1 MVWPVABZQQJTPL-UHFFFAOYSA-N 0.000 description 1
- TWZYORZPYCRVAX-UHFFFAOYSA-N 2-(2h-thiopyran-1-ylidene)propanedinitrile Chemical class N#CC(C#N)=S1CC=CC=C1 TWZYORZPYCRVAX-UHFFFAOYSA-N 0.000 description 1
- NSMJMUQZRGZMQC-UHFFFAOYSA-N 2-naphthalen-1-yl-1H-imidazo[4,5-f][1,10]phenanthroline Chemical compound C12=CC=CN=C2C2=NC=CC=C2C2=C1NC(C=1C3=CC=CC=C3C=CC=1)=N2 NSMJMUQZRGZMQC-UHFFFAOYSA-N 0.000 description 1
- KYGSXEYUWRFVNY-UHFFFAOYSA-N 2-pyran-2-ylidenepropanedinitrile Chemical class N#CC(C#N)=C1OC=CC=C1 KYGSXEYUWRFVNY-UHFFFAOYSA-N 0.000 description 1
- 150000004325 8-hydroxyquinolines Chemical class 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910015202 MoCr Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- XBDYBAVJXHJMNQ-UHFFFAOYSA-N Tetrahydroanthracene Natural products C1=CC=C2C=C(CCCC3)C3=CC2=C1 XBDYBAVJXHJMNQ-UHFFFAOYSA-N 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 125000000641 acridinyl group Chemical class C1(=CC=CC2=NC3=CC=CC=C3C=C12)* 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Natural products C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 1
- BBEAQIROQSPTKN-UHFFFAOYSA-N antipyrene Natural products C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000005385 borate glass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 150000001846 chrysenes Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229960000956 coumarin Drugs 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical class C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical class O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 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
- 150000004820 halides Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- VPUGDVKSAQVFFS-UHFFFAOYSA-N hexabenzobenzene Natural products C1=C(C2=C34)C=CC3=CC=C(C=C3)C4=C4C3=CC=C(C=C3)C4=C2C3=C1 VPUGDVKSAQVFFS-UHFFFAOYSA-N 0.000 description 1
- 229940083761 high-ceiling diuretics pyrazolone derivative Drugs 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 150000002987 phenanthrenes Chemical class 0.000 description 1
- 239000005365 phosphate glass Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002098 polyfluorene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229940005642 polystyrene sulfonic acid Drugs 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical class O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 1
- 150000003219 pyrazolines Chemical class 0.000 description 1
- WVIICGIFSIBFOG-UHFFFAOYSA-N pyrylium Chemical class C1=CC=[O+]C=C1 WVIICGIFSIBFOG-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical class [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical class [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 150000005075 thioxanthenes Chemical class 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 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
Images
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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
- H01L22/26—Acting in response to an ongoing measurement without interruption of processing, e.g. endpoint detection, in-situ thickness measurement
-
- 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
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- 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
- 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
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/40—Thermal treatment, e.g. annealing in the presence of a solvent vapour
- H10K71/441—Thermal treatment, e.g. annealing in the presence of a solvent vapour in the presence of solvent vapors, e.g. solvent vapour annealing
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/861—Repairing
Definitions
- the present invention relates to a method for coating a defective portion in an organic EL (Electro-Luminescence) element and a method for manufacturing the organic EL element.
- organic EL Electro-Luminescence
- an organic EL display panel in which an organic EL element is disposed on a substrate is becoming popular as a display device.
- the organic EL display panel has characteristics such as high visibility because it uses an organic EL element that performs self-emission, and excellent impact resistance because it is a complete solid element.
- An organic EL element is a current-driven light-emitting element, and a plurality of functional layers such as a light-emitting layer that performs electroluminescence phenomenon by recombination of carriers (holes, electrons) are provided between a pixel electrode and a common electrode pair. It is constructed by stacking.
- Patent Document 1 a method for preventing the occurrence of dark spot defects by applying a non-conductive liquid material on such a defective region to form an insulating film and preventing current from flowing in the defective region has been conventionally known.
- Known for example, Patent Document 1).
- Patent Document 1 and Patent Document 2 are suitable as methods for forming an insulating film in such a minute region.
- the material for forming the insulating film is preferably a material having high stability, that is, a material having a small change in viscosity with time and in which a phenomenon such as stringing does not occur.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a coating method suitable for covering a defective portion of an organic EL element with an insulating material.
- the coating method according to one aspect of the present invention is a coating method for coating a defect portion in a laminated structure with an insulating material, the first step of preparing a mixture containing the insulating material and a solvent, and the mixing A second step of applying an agent so as to cover the defective part; and a step of evaporating the solvent in the mixture applied so as to cover the defective part to coat the defective part with the insulating material.
- the boiling point of the solvent is 178 ° C. or higher
- the weight ratio of the insulating material to the solvent in the mixture is 10% or higher.
- the coating method according to one embodiment of the present invention uses a solvent having a high boiling point and hardly volatilizes, the speed of thickening with time is small and the stability of the mixture can be improved. And since the ratio of the solid content in a mixing agent is high and the viscosity of a mixing agent is high, a mixing agent does not spread easily after application to a defective part. As a result, the area covered with the insulating film can be prevented from becoming larger than necessary, and the area of the non-light emitting region can be prevented from becoming larger than necessary. At the same time, the mixture is difficult to spread and prevents the insulating film from becoming unnecessarily thin, and sufficient insulation can be ensured.
- FIG. 3 is a plan view schematically showing pixels of the organic EL display panel according to Embodiment 1.
- FIG. 3 is a cross-sectional view schematically showing a schematic configuration of the organic EL element according to Embodiment 1, and is a cross-sectional view taken along the line A-A ′ of FIG. 2.
- FIG. 5 is a schematic process diagram illustrating a manufacturing process of an organic EL display panel including the organic EL element according to the first embodiment.
- FIG. 2 is a schematic cross-sectional view showing a part of the manufacturing process of the display panel according to Embodiment 1, wherein (a) is a schematic cross-sectional view showing a state in which a pixel electrode is formed on a base substrate, and (b) FIG. 4C is a schematic cross-sectional view showing a state where an insulating film is formed so as to cover a defective portion on the pixel electrode.
- FIG. 5C is a diagram illustrating a case where a hole injection layer is formed on the defective portion covered with the pixel electrode and the insulating film.
- (D) is a schematic cross-sectional view showing a state in which a bank is formed on the hole injection layer.
- FIG. 6 is a schematic cross-sectional view showing a part of the manufacturing process subsequent to FIG. 5 of the display panel according to Embodiment 1, wherein (a) is a schematic cross-sectional view showing a state in which an organic light emitting layer is formed in the opening. (B) is a schematic cross section which shows the state in which the electron carrying layer was formed on the organic light emitting layer and the bank, (c) is a schematic cross section which shows the state in which the common electrode was formed on the electron carrying layer It is a figure and (d) is a schematic cross section which shows the state in which the sealing layer was formed on the common electrode.
- a coating method is a coating method for coating a defect portion in a laminated structure with an insulating material, the first step of preparing a mixture containing the insulating material and a solvent, and the mixing A second step of applying an agent so as to cover the defective part; and a step of evaporating the solvent in the mixture applied so as to cover the defective part to coat the defective part with the insulating material.
- the boiling point of the solvent is 178 ° C. or higher
- the weight ratio of the insulating material to the solvent in the mixture is 10% or higher.
- the boiling point of the solvent is 210 ° C. or less
- the weight ratio of the insulating material to the solvent is 40% or less.
- the mixture is such that the weight ratio (%) of the insulating material to the solvent is x and the boiling point (° C.) of the solvent is y. 10 ⁇ x ⁇ 20, 178 ⁇ y ⁇ 210, y ⁇ 3.2x + 146 and y ⁇ 0.97x + 20.5.
- the said mixing agent is filled in the storage container which has an opening part, and it has a rod shape in the said 2nd process.
- the stacked structure includes a base substrate, a pixel electrode formed on the base substrate, and a plurality of functions stacked on the pixel electrode.
- An organic EL element having a layer and a common electrode formed on the plurality of functional layers, wherein the defect portion is a foreign substance located between the pixel electrode and the common electrode, or the pixel It is a protrusion part or a recessed part formed in the electrode and the plurality of functional layers.
- An organic EL element manufacturing method includes a base substrate, a pixel electrode formed on the base substrate, a plurality of functional layers stacked on the pixel electrode, and the plurality of functions. And a defect portion for detecting the defect portion after the pixel electrode is formed and before the common electrode is formed.
- a covering step of covering the defective portion with an insulating material prior to the formation of the next functional layer or the common electrode when a defective portion is detected in the defective portion detecting step In the covering step, a first step of preparing a mixture containing an insulating material and a solvent, a second step of applying the mixture so as to cover the defective portion, and a step of applying so as to cover the defective portion Evaporating the solvent in the mixture, A third step of covering the depression with the insulating material, the boiling point of the solvent is 178 ° C. or higher, and the weight ratio of the insulating material to the solvent in the mixture is 10% or higher. It is characterized by that.
- the defect portion is located on the pixel electrode.
- FIG. 1 is a schematic block diagram showing a configuration of an organic EL display device 1 having an organic EL display panel 100 according to the first embodiment.
- the organic EL display device 1 includes an organic EL display panel 100 and a drive control unit 20 connected thereto.
- the organic EL display panel 100 is a panel using an electroluminescence phenomenon of an organic material, and a plurality of organic EL elements 10 (see FIGS. 2 and 3) are arranged on a substrate, for example, in a matrix.
- the drive control unit 20 includes four drive circuits 21 to 24 and a control circuit 25.
- the arrangement of the drive control unit 20 with respect to the organic EL display panel 100 is not limited to this.
- FIG. 2 is a plan view schematically showing a schematic configuration viewed from the display surface side of the organic EL display panel 100.
- 3 is a partially enlarged cross-sectional view of the organic EL display panel 100 taken along the line A-A ′ of FIG.
- the organic EL display panel 100 is a so-called top emission type having a display surface on the Z direction side.
- the organic EL display panel 100 includes a base substrate 11, a pixel electrode 12, a hole injection layer 13, a bank 14, an organic light emitting layer 15, an electron transport layer 16, a common electrode 17, as main components.
- a sealing layer 18 is provided.
- the organic EL display panel 100 uses the organic EL element 10 having the organic light emitting layer 15 corresponding to any one of red (R), green (G), and blue (B) as a subpixel, as shown in FIG.
- subpixels are arranged in a matrix. 2 shows a state in which the electron transport layer 16, the common electrode 17, and the sealing layer 18 are removed for easy understanding.
- the organic EL display panel 100 has the defect portion 3 in the hole injection layer 13.
- the base substrate 11 includes a substrate body 11a, a TFT (thin film transistor) layer 11b, and an interlayer insulating layer 11c.
- the substrate main body 11a is a portion that becomes a base material of the organic EL display panel 100.
- a base material of the organic EL display panel 100 For example, alkali-free glass, soda glass, non-fluorescent glass, phosphate glass, borate glass, quartz, acrylic resin, styrene resin , Polycarbonate resin, epoxy resin, polyethylene, polyester, silicone resin, or an insulating material such as alumina.
- the TFT layer 11b is provided for each subpixel on the surface of the substrate body 11a, and a pixel circuit including a thin film transistor element is formed in each.
- the interlayer insulating layer 11c is formed on the TFT layer 11b, and ensures electrical insulation between the TFT layer 11b and the pixel electrode 12 and flattens the step on the upper surface of the TFT layer 11b. It is.
- the interlayer insulating layer 11c is made of an organic insulating material such as polyimide resin, acrylic resin, or novolac type phenol resin, or inorganic insulating material such as SiO (silicon oxide) or SiN (silicon nitride).
- the pixel electrode 12 is a pixel electrode provided individually for each subpixel.
- Ag silver
- Al aluminum alloy
- Mo molybdenum
- APC silver, palladium, copper alloy
- ARA alloy of silver, rubidium, gold
- MoCr alloy of molybdenum and chromium
- MoW alloy of molybdenum and tungsten
- NiCr alloy of nickel and chromium
- ACL alloy of aluminum, cobalt, germanium, lanthanum
- the pixel electrode 12 is an anode.
- a known transparent conductive film may be further provided on the surface of the pixel electrode 12.
- a material of the transparent conductive film for example, indium tin oxide (ITO) or indium zinc oxide (IZO) can be used.
- ITO indium tin oxide
- IZO indium zinc oxide
- the transparent conductive film is interposed between the pixel electrode 12 and the hole injection layer 13 and has a function of improving the bonding property between the respective layers.
- the hole injection layer 13 is made of, for example, an oxide such as silver (Ag), molybdenum (Mo), chromium (Cr), vanadium (V), tungsten (W), nickel (Ni), iridium (Ir), or PEDOT. It is a layer made of a conductive polymer material such as (mixture of polythiophene and polystyrene sulfonic acid).
- the hole injection layer 13 made of metal oxide has a function of injecting and transporting holes to and from the organic light emitting layer 15 by stably generating holes or assisting the generation of holes.
- the hole injection layer 13 is made of an oxide of a transition metal, a plurality of levels can be taken because a plurality of oxidation numbers are taken. As a result, hole injection is facilitated and driving voltage is reduced. can do.
- a bank 14 is provided for partitioning an opening 14 a serving as a region where the organic light emitting layer 15 is formed.
- the bank 14 is formed so as to have a certain trapezoidal cross section, and is made of an insulating organic material (for example, an acrylic resin, a polyimide resin, a novolac type phenol resin, or the like).
- the bank 14 functions as a structure for preventing the applied ink from overflowing when the organic light emitting layer 15 is formed by a coating method, and is deposited when the organic light emitting layer 15 is formed by a vapor deposition method. It functions as a structure for mounting the mask.
- the area defined by the opening 14a is a light emitting area, and each light emitting area corresponds to one subpixel.
- the organic light emitting layer 15 is a portion that emits light by recombination of carriers (holes and electrons), and is configured to include an organic material corresponding to any of R, G, and B colors.
- the organic light emitting layer 15 is formed in each opening 14a of the bank 14, and therefore is formed for each subpixel.
- Examples of materials that can be used for the organic light emitting layer 15 include polyparaphenylene vinylene (PPV), polyfluorene, and, for example, an oxinoid compound, a perylene compound, and a coumarin described in a patent publication (JP-A-5-163488).
- the electron transport layer 16 has a function of transporting electrons injected from the common electrode 17 to the organic light-emitting layer 15, and includes, for example, an oxadiazole derivative (OXD), a triazole derivative (TAZ), a phenanthroline derivative (BCP, Bphen) or the like.
- OXD oxadiazole derivative
- TEZ triazole derivative
- BCP phenanthroline derivative
- the common electrode 17 is provided in common to each sub-pixel, and is formed of, for example, a light-transmitting material having conductivity such as ITO or IZO. In the case of a top emission type organic EL display panel, it is preferably formed of a light transmissive material.
- the common electrode 17 As a material used for forming the common electrode 17, in addition to the above, for example, a structure in which a layer containing an alkali metal, an alkaline earth metal, or a halide thereof and a layer containing silver are stacked in this order is used. You can also.
- the layer containing silver may be formed of silver alone, or may be formed of a silver alloy.
- a refractive index adjusting layer having high transparency can be provided on the silver-containing layer.
- the common electrode 17 is a cathode.
- the sealing layer 18 is provided to protect the hole injection layer 13, the organic light emitting layer 15, the electron transport layer 16, and the common electrode 17 from moisture or oxygen that has entered the organic EL display panel 100.
- a black matrix, a color filter, or the like may be formed on the sealing layer 18.
- the defective portion 3 is a foreign matter, a protruding portion, or a recessed portion existing between the pixel electrode 12 and the common electrode 17. Due to the presence of the defect portion 3, the portion corresponding to the defect portion 3 of each layer formed thereon (the portion located above the defect portion 3) protrudes upward (Z direction side) or below (opposite to the Z direction) Side). Furthermore, a part of the part corresponding to the defective part 3 may not be formed.
- the defect portion 3 is a foreign matter existing on the pixel electrode 12, specifically, a minute dust such as dust or dust.
- the defective portion 3 may be formed between the pixel electrode 12 and the common electrode 17 due to a foreign matter, a protruding portion, or a recessed portion below the pixel electrode 12.
- a portion formed on the foreign matter of the pixel electrode 12 protrudes upward, and this becomes the defect portion 3. There is.
- a protruding portion or a recessed portion formed between the pixel electrode 12 and the common electrode 17 due to a factor existing below the pixel electrode 12 is also treated as the defective portion 3.
- the pixel electrode surface is also included between the pixel electrode 12 and the common electrode 17.
- the insulating film 4 is made of an insulating material, and is formed on the defect portion 3 and the pixel electrode 12 by coating so as to cover the defect portion 3. As a result, no current flows in a portion corresponding to the defect portion 3 between the pixel electrode 12 and the common electrode 17, and the portion becomes a non-light emitting region.
- the insulating material include acrylic resins, polyimide resins, fluorine resins, epoxy resins, and styrene resins.
- the insulating film 4 is not necessarily formed directly on the defect portion 3.
- the insulating film 4 may be formed on a portion of the hole injection layer 13 located above the defect portion 3. Details of the insulating film 4 will be described later.
- the organic EL element 10 having the defect portion 3 shows the organic EL element 10 having the defect portion 3, but not all the organic EL elements 10 formed on the organic EL display panel 100 have the defect portion 3. . There is a possibility that only some of the plurality of organic EL elements 10 formed on the organic EL display panel 100 have the defect portion 3, and the organic EL elements having the defect portion 3 are zero.
- the organic EL display panel 100 in which the organic EL element 10 having the defective portion 3 is present in a predetermined ratio or more is processed as a defective product.
- FIGS. 4 is a schematic process diagram showing the manufacturing process of the organic EL display panel 100
- FIGS. 5 to 6 are partial cross-sectional views schematically showing the manufacturing process of the organic EL display panel 100.
- FIG. 4 is a schematic process diagram showing the manufacturing process of the organic EL display panel 100
- FIGS. 5 to 6 are partial cross-sectional views schematically showing the manufacturing process of the organic EL display panel 100.
- the TFT layer 11b is formed on the substrate body 11a (step S1 in FIG. 4).
- an interlayer insulating layer 11c having a thickness of about 4 [ ⁇ m] is formed on the TFT layer 11b using an organic material having excellent insulating properties (step S2 in FIG. 4), and the base substrate 11 Get.
- a contact hole 2 (see FIG. 2) is formed at the corresponding position.
- the contact hole 2 is formed by performing pattern exposure and development.
- pixel electrodes 12 made of a metal material having a thickness of about 400 [nm] are formed for each sub-pixel on the base substrate 11 based on a vacuum deposition method or a sputtering method (see FIG. 5A). Step S3 in FIG.
- the defective portion 3 on the surface of the pixel electrode 12 is detected (step S4 in FIG. 4).
- the defect portion 3 is detected using, for example, a pattern inspector.
- the pattern inspector detects the defective portion 3 by comparing adjacent subpixels one after another and detecting a difference between the plurality of organic EL elements 10 (subpixels) formed in a matrix.
- the coordinate data of the detected defective part 3 is stored in a storage unit (not shown).
- an insulating film 4 is formed by applying a mixture of an insulating material dissolved in a solvent so as to cover the defective portion 3 by a needle coating method.
- the coordinate data is input to the coating device, and the mixture can be accurately coated on the defect portion 3 based on the coordinate data.
- the applied admixture is a liquid before application, but the solvent volatilizes after application, so that the ratio of the insulating material that is a solid content is increased and becomes a film-like solid.
- the solvent used for the mixture is, for example, DPMA (N- [2- (3,5-dimethoxyphenyl) -2- (2-methylphenyl) ethyl] adenosine, N- [2 -(3,5-dimethoxyphenyl) -2- (o-tolyl) ethyl] adenosine, N- [2- (2-methylphenyl) -2- (3,5-dimethoxyphenyl) ethyl] adenosine) and cyclo Hexanol, 2-octanol and 1-octanol.
- DPMA N- [2- (3,5-dimethoxyphenyl) -2- (2-methylphenyl) ethyl] adenosine
- N- [2 -(3,5-dimethoxyphenyl) -2- (o-tolyl) ethyl] adenosine N- [2- (2-methylpheny
- the insulating material used for the mixture is, for example, a monomer or oligomer that undergoes a crosslinking reaction such as polymerization.
- the insulating material in the heating (firing) step in the subsequent step of the mixture application step (for example, the bank forming step or the organic light emitting layer forming step), the insulating material is cross-linked and has stable physical properties.
- An insulating film 4 having the structure is formed.
- the final insulating film 4 is formed through a crosslinking reaction by heating.
- step S5 of FIG. 4 and FIGS. 5B and 5C mixing is performed.
- the insulating film 4 is formed in such a state that the agent is applied onto the defect portion 3 and the solvent is volatilized to some extent and is physically stable to some extent (solidified to some extent).
- the hole injection layer 13 is uniformly sputter-deposited on the base substrate 11 and the pixel electrode 12 with tungsten oxide (step S6 in FIG. 4).
- the bank 14 is formed based on the photolithography method.
- a paste-like bank material containing a photosensitive resist is prepared as a material for forming the bank. This bank material is uniformly applied on the hole injection layer 13. A mask formed in the pattern of the opening 14a shown in FIG. 2 is overlaid thereon. Subsequently, exposure is performed on the mask to form a bank pattern. Thereafter, excess bank material is washed out with an aqueous or non-aqueous etching solution (developer). Thereby, patterning of the bank material is completed, and thereafter baking (heating) is performed. The bank 14 is baked, for example, at a temperature of 150 ° C. or higher and 210 ° C. or lower for 60 minutes. Thus, the opening part 14a used as an organic light emitting layer formation area is prescribed
- the surface of the bank 14 is made to have a predetermined surface in order to adjust the contact angle of the bank 14 with respect to the ink (solution) applied to the opening 14 a or to impart water repellency to the surface.
- Surface treatment may be performed with an alkaline solution, water, an organic solvent, or the like, or plasma treatment may be performed.
- a material constituting the electron transport layer 16 is formed on the organic light emitting layer 15 and the bank 14 based on a vacuum deposition method. Thereby, the electron transport layer 16 is formed (step S9 in FIG. 4).
- the common electrode 17 is formed (step S10 in FIG. 4).
- a sealing layer 18 is formed on the surface of the common electrode 17 by forming a light transmissive material such as SiN or SiON by sputtering, CVD, or the like (step S11 in FIG. 4).
- the organic EL display panel 100 is completed through the above steps.
- FIG. 7 is a cross-sectional view schematically showing an outline of the coating method in the present embodiment.
- FIG. 7A is a cross-sectional view schematically showing a state before the mixture 40 is applied to the defect portion 3.
- FIG. 7B is a cross-sectional view schematically showing a state where the tip 33 a of the needle 33 is in contact with the defective part 3.
- FIG. 7C is a cross-sectional view schematically showing a state where the tip 33 a of the needle 33 is separated from the defect 3 and the defect 3 is covered with the mixture 40.
- the coating unit 30 in the present embodiment has the same configuration as the coating unit 10 described in Patent Document 2. That is, as shown in FIGS. 7A, 7 ⁇ / b> B, and 7 ⁇ / b> C, the application unit 30 is a main part of an application unit (not shown), and the application unit 30 includes a container 31, a lid 32, and a needle. 33.
- a first hole 31 a is opened at the bottom of the container 31, and the mixture 40 is injected into the container 31.
- the upper opening of the container 31 is closed by a lid 32.
- a second hole 32 a is opened at the center of the lid 32.
- a tapered portion having a cross-sectional area that gradually decreases toward the tip is formed at the tip of the needle 33, and a circular flat surface is formed at the tip of the needle 33.
- the needle 33 has substantially the same diameter as the first and second holes 31a and 32a.
- the tip 33 a of the needle 33 penetrates the second hole 32 a and is immersed in the mixture 40. Since the diameters of the first and second holes 31a and 32a are slightly larger than the diameter of the needle 33 penetrating them, the first hole 31a and the second hole 31a are very small. There is almost no leakage of the mixture 40 from the hole 31a.
- the diameter of the first hole 31a is 1 mm or less.
- the needle 33 is supported by a linear motion bearing (not shown) so as to advance and retract in the vertical direction.
- a linear motion bearing (not shown) so as to advance and retract in the vertical direction.
- the container 31 has a tapered shape in which the cross-sectional area decreases as it approaches the first hole 31a. Accordingly, the tip 33a of the needle 33 can be immersed with a small amount of the mixture 40.
- the amount of the mixture 40 is, for example, 20 ⁇ l (microliter).
- the tip 33a of the needle 33 and the defective part 3 are opposed to each other with a predetermined gap.
- the needle 33 is lowered by a driving device (not shown), and the tip 33a of the needle 33 projects below the container 31 through the first hole 31a.
- the admixture 40 adhering to 33a is applied to the defective portion 3.
- the needle 33 is returned upward by a driving device (not shown), and one application is completed. And the front-end
- the mixture 40 wets and spreads around the defect portion 3 on the pixel electrode 12.
- the solvent in the mixture 40 volatilizes, the ratio of the insulating material (solid content) in the mixture 40 increases, and the viscosity increases.
- the rate of wetting and spreading also slows, and eventually the wetting and spreading stops. Thereafter, the solvent is further volatilized, and further, the solvent is further volatilized by heating in a later step, and the insulating material is crosslinked to complete the insulating film 4 (see FIG. 3) having stable physical properties.
- the first property is desirably a mixture that does not spread so much after application to the defective part 3.
- the second characteristic is that a mixture having a sufficient film thickness in a state where the wet spread is settled after being applied to the defect portion 3 is required.
- the third characteristic is that a viscosity agent suitable for application with a needle is required, and a mixture having a viscosity that does not cause defects such as stringing after application is required.
- Viscosity properties suitable for application with a needle mean that the speed of thickening is low and the stability is high.
- a mixed agent having a high viscosity satisfies these characteristics.
- the film thickness gradually decreases as the mixture spreads wet. However, the higher the viscosity of the mixture, the harder the film spreads.
- the ratio of the solid content in the mixture may be increased.
- the solvent has a low boiling point, the solvent is volatilized in a relatively short time after being applied to the defect portion 3 even when a mixture having a low viscosity and a low viscosity is used. Therefore, it is considered that wetting can be suppressed and a sufficient film thickness can be secured.
- the coating operation of the defective part is often performed continuously for several tens to several hundreds of panels for a long time, and the amount of the mixture used in one application is very small. Therefore, the mixture 40 is often held in the container 31 for a long time. In such a case, when the boiling point of the solvent is low, the solvent volatilizes while being held in the container 31, and the viscosity increases. Then, in addition to problems such as stringing, the first hole 31a may be blocked by the insulating material dried and solidified.
- the coating area was measured as an index for evaluating the first characteristic.
- the application area was measured by applying the mixture 40 onto the pixel electrode by a needle application method and measuring the diameter of the mixture which spreads after 5 minutes.
- the film thickness was measured to evaluate the second characteristic.
- the film thickness was measured by applying the mixture 40 onto the pixel electrode by a needle coating method, and measuring the film thickness of the mixture spread after 5 minutes.
- stability was measured as an index for evaluating the third characteristic.
- the stability was measured by periodically measuring the film thickness (for example, every 30 minutes) and measuring the time until the film thickness was 1.1 times the initial film thickness.
- a thickness smaller than 40 nm was set as NG. This is because if the film thickness on the plane is 40 nm or more, a foreign matter having a size of 5 ⁇ m which is the largest foreign matter size in the process can be insulated.
- the time until the film thickness becomes 1.1 times is 12 hours or more, it is set as Good, and if it is less than 12 hours, it is set as NG. This is because when the film thickness variation is 10% or more, the coating property is affected, and the frequency of material exchange in the production line is limited to twice a day.
- the overall evaluation is Good, and if there is even one NG, the overall evaluation is NG.
- FIG. 8B shows the results of the comprehensive evaluation of the insulating film suitability test for the 13 types of mixture shown in FIG. 8A, with the vertical axis representing the boiling point of the solvent and the horizontal axis representing the solid content ratio. It is the figure plotted on the graph. The numbers enclosed in circles in the figure are numbers indicating the types of the mixture.
- the solvents used in the admixture used in this insulating film suitability test were DPMA (boiling point: 210 ° C.), cyclohexanol (boiling point: 162 ° C.), 2-octanol (boiling point: 178 ° C.), 1-octanol (boiling point). 194 ° C.).
- a mixed solvent may be used.
- the boiling point of each solvent is defined as the boiling point of the mixed solvent obtained by multiplying the boiling point of each solvent by the mixing ratio of the solvent and adding the multiplied values for each solvent.
- the solid content (%) is the weight ratio (%) of the insulating material to the solvent.
- the mixture whose overall evaluation is Good is within the region surrounded by the line segment connecting the points of the No. 4, No. 6, No. 12, No. 13, and No. 8 admixtures. Are all located. Accordingly, it is considered that a mixture located in the region exhibits good characteristics in all of stability, film thickness, and application area.
- the defect portion 3 is a foreign matter on the pixel electrode 12.
- the defect part 3 is not restricted to a foreign material.
- the pixel electrode 12 may be formed to protrude upward due to a foreign matter or a protruding portion below the pixel electrode 12. In such a case, the protruding portion of the pixel electrode 12 becomes the defective portion 3.
- Embodiment 2 describes a case where the defective portion 3 is a protruding portion formed on the pixel electrode 12 due to a protruding portion formed on the surface of the interlayer insulating layer 11c.
- FIG. 9 is a cross-sectional view schematically showing an outline of a method of covering the defect portion 3 in the organic EL element according to the second embodiment.
- FIG. 9A is a cross-sectional view schematically showing a state before the mixture 40 is applied to the defect portion 3.
- FIG. 9B is a cross-sectional view schematically showing a state where the tip 33 a of the needle 33 is in contact with the defect 3.
- FIG. 9C is a cross-sectional view schematically showing a state in which the tip 33 a of the needle 33 is separated from the defect 3 and the defect 3 is covered with the mixture 40.
- the surface protrusion 5 is formed on the surface of the interlayer insulating layer 11c.
- the surface protrusion 5 is formed due to exposure unevenness or mask defects when forming the interlayer insulating layer 11c.
- a portion of the pixel electrode 12 located on the surface protrusion 5 is formed so as to protrude upward, and becomes a defect 3.
- a non-uniform film thickness portion or a portion that is not partially formed is generated. Therefore, it is important to cover the defect portion 3 which is such a protruding portion with the insulating film 4.
- the coating process for applying the mixture 40 to the defective part 3 in the second embodiment and covering the defective part 3 with an insulating material is the same as the coating process in the first embodiment, and a detailed description thereof is omitted here. To do.
- the insulating film 4 can be formed so as to cover the defective portion 3 by the needle application method similar to that of the first embodiment also for the defective portion 3 of the organic EL element according to the second embodiment. Even in this case, as in the first embodiment, the insulating film 4 having good characteristics can be formed by using the mixture located in the region surrounded by the straight and broken lines in FIG. It is thought that can be done.
- the defect portion 3 is a foreign matter on the pixel electrode 12.
- the defective portion is a protruding portion formed on the pixel electrode 12 due to the surface protrusion portion existing below the pixel electrode 12.
- the defective part 3 is not limited to a foreign substance or a protrusion.
- the defective part 3 may be a recessed part.
- FIG. 10 is a cross-sectional view schematically showing an outline of a method of covering the defect portion 3 in the organic EL element according to the third embodiment.
- FIG. 10A is a cross-sectional view schematically showing a state before the mixture 40 is applied to the defect portion 3.
- FIG. 10B is a cross-sectional view schematically showing a state in which the tip 33 a of the needle 33 is in contact with the defective part 3.
- FIG. 10C is a cross-sectional view schematically showing a state where the tip 33 a of the needle 33 is separated from the defect 3 and the defect 3 is covered with the mixture 40.
- a surface recess 6 is formed on the surface of the interlayer insulating layer 11c.
- the surface recess 6 is formed by exposure unevenness or mask defect when forming the interlayer insulating layer 11c, or by mask defect when forming the contact hole 2 (see FIG. 2) in the interlayer insulating layer 11c. There are some cases.
- the pixel electrode 12 is formed on such a surface recess 6, a portion located on the surface recess 6 of the pixel electrode 12 is formed so as to be recessed downward, thereby forming the defect portion 3.
- FIGS. 10A, 10B, and 10C a surface recess 6 is formed on the surface of the interlayer insulating layer 11c.
- each functional layer laminated on the stepped portion also has a stepped portion or a locally thin portion where the pixel electrode and the common electrode are very close to each other at the stepped portion. Or formed in contact with each other may cause a short circuit or the like. Further, even when the surface recess 6 is not so deep and the pixel electrode 12 is continuously formed along the recess surface of the surface recess 6, a hole is formed on the defect 3.
- the organic light emitting layer 15, etc. are formed, a portion having a thin film thickness is formed in the recessed edge portion of the defect portion 3, and charges are concentrated there, thereby promoting deterioration. Eventually, a non-light emitting area is generated. Therefore, it is important to cover the defective portion 3 due to such recesses with the insulating film 4.
- the coating process for applying the mixture 40 to the defective part 3 in the third embodiment and covering the defective part 3 with an insulating material is the same as the coating process in the first and second embodiments. The detailed explanation is omitted.
- the insulating film 4 can also be formed so as to cover the defective portion 3 of the defective portion 3 of the organic EL element according to the third embodiment by the same needle coating method as in the first and second embodiments. Even in this case, as in the first embodiment, the insulating film 4 having good characteristics can be formed by using the mixture located in the region surrounded by the straight and broken lines in FIG. It is thought that can be done.
- the insulating film 4 is formed on the pixel electrode 12, but the present invention is not limited to this.
- the hole injection layer 13 is formed by sputtering or the like, silver (Ag), molybdenum (Mo), chromium (Cr), vanadium (V), tungsten (W), nickel (Ni), iridium (Ir), etc.
- the insulating film 4 may be formed not on the pixel electrode 12 but on the hole injection layer 13.
- the insulating film 4 Since the insulating film 4 has only to suppress the supply of holes or electrons to a portion corresponding to the upper portion of the defect portion 3 of the organic light emitting layer 15, the insulating film 4 is not necessarily provided between the pixel electrode 12 and the organic light emitting layer 15. It may not be formed. For example, it may be formed between any layers between the organic light emitting layer 15 and the common electrode 17.
- the insulating film 4 When the insulating film 4 is formed below the organic light emitting layer 15, the film thickness distribution of the organic light emitting layer 15 in the vicinity of the end of the insulating film 4 may be adversely affected, but the insulating film 4 is formed above the organic light emitting layer 15. Such an adverse effect can be eliminated by forming.
- the organic EL device according to one embodiment of the present invention may further include other layers such as a hole transport layer, an electron injection layer, a passivation film, and a transparent conductive layer.
- the covering method and the manufacturing method of the organic EL element of the present invention include, for example, an organic EL display panel used as a home or public facility, or various display devices for business use, a television device, a display for a portable electronic device, etc.
- the present invention can be suitably used for a manufacturing method and a method for covering a defective portion of an organic EL element applied in the manufacturing method.
Abstract
Description
本発明の一態様に係る被覆方法は、積層構造における欠陥部を絶縁性材料で被覆する被覆方法であって、前記絶縁性材料と溶媒とを含む混合剤を準備する第1工程と、前記混合剤を、前記欠陥部を覆うように塗布する第2工程と、前記欠陥部を覆うように塗布した前記混合剤中の前記溶媒を蒸発させて、前記欠陥部を前記絶縁性材料により被覆させる第3工程と、を有し、前記溶媒の沸点は178℃以上であり、前記混合剤における前記溶媒に対する前記絶縁性材料の重量比が10%以上であることを特徴とする。
[1-1.全体構成]
図1は、実施形態1に係る有機EL表示パネル100を有する有機EL表示装置1の構成を示す模式ブロック図である。図1に示すように、有機EL表示装置1は、有機EL表示パネル100と、これに接続された駆動制御部20とを有し構成されている。有機EL表示パネル100は、有機材料の電界発光現象を利用したパネルであり、複数の有機EL素子10(図2,3参照)が基板上に、例えばマトリクス状に、配列されている。駆動制御部20は、4つの駆動回路21~24と制御回路25とから構成されている。
有機EL表示パネル100の構成について、図2を用い説明する。
下地基板11は、基板本体部11a、TFT(薄膜トランジスタ)層11b、層間絶縁層11cを有する。
画素電極12は、サブピクセル毎に個別に設けられた画素電極であり、例えば、Ag(銀)、Al(アルミニウム)、アルミニウム合金、Mo(モリブデン)、APC(銀、パラジウム、銅の合金)、ARA(銀、ルビジウム、金の合金)、MoCr(モリブデンとクロムの合金)、MoW(モリブデンとタングステンの合金)、NiCr(ニッケルとクロムの合金)、ACL(アルミニウム、コバルト、ゲルマニウム、ランタンの合金)等の光反射性導電材料からなる。本実施形態においては、画素電極12は、陽極である。
ホール注入層13は、例えば、銀(Ag)、モリブデン(Mo)、クロム(Cr)、バナジウム(V)、タングステン(W)、ニッケル(Ni)、イリジウム(Ir)などの酸化物、あるいは、PEDOT(ポリチオフェンとポリスチレンスルホン酸との混合物)などの導電性ポリマー材料からなる層である。上記の内、酸化金属からなるホール注入層13は、ホールを安定的に生成、またはホールの生成を補助して、有機発光層15に対しホールを注入および輸送する機能を有する。
ホール注入層13の表面には、有機発光層15の形成領域となる開口部14aを区画するためのバンク14が設けられている。バンク14は一定の台形断面を持つように形成されており、絶縁性の有機材料(例えばアクリル系樹脂、ポリイミド系樹脂、ノボラック型フェノール樹脂等)からなる。バンク14は、有機発光層15を塗布法で形成する場合には塗布されたインクがあふれ出ないようにするための構造物として機能し、有機発光層15を蒸着法で形成する場合には蒸着マスクを載置するための構造物として機能する。
有機発光層15は、キャリア(正孔と電子)の再結合による発光を行う部位であり、R,G,Bのいずれかの色に対応する有機材料を含むように構成されている。有機発光層15は、バンク14の開口部14a内にそれぞれ形成されており、そのため、サブピクセル毎に形成されていることになる。
電子輸送層16は、共通電極17から注入された電子を有機発光層15へ輸送する機能を有し、例えば、オキサジアゾール誘導体(OXD)、トリアゾール誘導体(TAZ)、フェナンスロリン誘導体(BCP、Bphen)などを用い形成されている。
共通電極17は、各サブピクセル共通に設けられており、例えば、ITO、IZO等の導電性を有する光透過性材料で形成されている。トップエミッション型の有機EL表示パネルの場合においては、光透過性の材料で形成されることが好ましい。
封止層18は、有機EL表示パネル100内に浸入した水分又は酸素からホール注入層13、有機発光層15、電子輸送層16、共通電極17を保護するために設けられている。
欠陥部3は、画素電極12と共通電極17との間に存在する異物または突出部または凹入部である。欠陥部3の存在により、その上に形成される各層の欠陥部3に対応する部分(欠陥部3の上方に位置する部分)が上方(Z方向側)に突出または下方(Z方向とは反対側)に凹入する態様で形成される。さらには、欠陥部3に対応する部分の一部が形成されない場合も有る。
絶縁膜4は、絶縁性材料から成り、欠陥部3を覆うように欠陥部3および画素電極12上に塗布により形成されている。これにより、画素電極12と共通電極17との間において欠陥部3に対応する部分には電流が流れず、当該部分は、非発光領域となる。上記絶縁性材料としては、例えば、アクリル系樹脂、ポリイミド系樹脂、フッ素系樹脂、エポキシ系樹脂、スチレン系樹脂などが挙げられる。
次に、本発明の一態様に係る有機EL素子10を備えた有機EL表示パネル100の製造方法について、図4~図6を用いて説明する。なお、図4は、有機EL表示パネル100の製造過程を示す模式工程図であり、図5~図6は、有機EL表示パネル100の製造過程を模式的に示す部分断面図である。
次に、本発明の一態様に係る有機EL素子の欠陥部の被覆方法について説明する。ここでは、実施形態1に係る有機EL表示パネル100に対して行われる被覆方法について以下に説明する。
絶縁膜4で覆われた部分には電流が流れないため、有機発光層15の絶縁膜4に対応する部分は、非発光領域となる。1つのサブピクセル内で非発光領域が大きいと当該サブピクセルの輝度が低下するため、非発光領域は必要最小限の大きさであることが望ましい。加えて、絶縁膜4には絶縁性を確保するに十分な厚さが必要である。そこで、上記説明した方法において使用される混合剤には、次の3つの特性が求められる。
実施形態1では、欠陥部3は、画素電極12上の異物であった。しかし、欠陥部3は異物に限られない。実施形態1の欠陥部3の項目において説明したように、画素電極12よりも下方の異物や突出部が原因で画素電極12が上方に突出するように形成される場合がある。このような場合、画素電極12の突出部が欠陥部3となる。
実施形態1では、欠陥部3は、画素電極12上の異物であった。実施形態2では、欠陥部は、画素電極12よりも下に存在する表面突起部が原因で画素電極12に形成された突出部であった。しかし、欠陥部3は異物や突出部に限られない。例えば、欠陥部3は凹入部である場合も考えられる。
以上、本発明の構成を実施形態1,2,3に基づいて説明したが、本発明はこれらの実施の形態に限られない。例えば、以下のような変形例を実施することができる。
3 欠陥部
4 絶縁膜
5 表面突起部
6 表面凹部
10 有機EL素子
11 下地基板
11a 基板本体部
11b TFT層
11c 層間絶縁層
12 画素電極
13 ホール注入層
14 バンク
14a 開口部
15 有機発光層
16 電子輸送層
17 共通電極
30 塗布部
31 容器
31a 第1の孔
32 蓋部
32a 第2の孔
33 ニードル
33a 先端部
40 混合剤
100 有機EL表示パネル
Claims (7)
- 積層構造における欠陥部を絶縁性材料で被覆する被覆方法であって、
前記絶縁性材料と溶媒とを含む混合剤を準備する第1工程と、
前記混合剤を、前記欠陥部を覆うように塗布する第2工程と、
前記欠陥部を覆うように塗布した前記混合剤中の前記溶媒を蒸発させて、前記欠陥部を前記絶縁性材料により被覆させる第3工程と、を有し、
前記溶媒の沸点は178℃以上であり、前記混合剤における前記溶媒に対する前記絶縁性材料の重量比が10%以上である
ことを特徴とする被覆方法。 - 前記溶媒の沸点は210℃以下であり、且つ、前記溶媒に対する前記絶縁性材料の重量比は40%以下である
ことを特徴とする請求項1に記載の被覆方法。 - 前記混合剤は、前記溶媒に対する前記絶縁性材料の重量比(%)をx、前記溶媒の沸点(℃)をyとした場合に、10≦x≦20、178≦y≦210であって、y≦3.2x+146且つy≧0.97x+20.5である
ことを特徴とする請求項2に記載の被覆方法。 - 前記第1工程において、前記混合剤は、開口部を有する収容容器に充填されており、
前記第2工程において、棒形状を有する塗布部材を前記収容容器の開口部に挿入し、前記塗布部材の先端部に混合剤を付着させた後、前記混合剤を付着させた前記塗布部材の先端部を前記欠陥部に接触させて前記混合剤を前記欠陥部に塗布する
ことを特徴とする請求項1から3のいずれか1項に記載の被覆方法。 - 前記積層構造は、下地基板と、前記下地基板上に形成された画素電極と、前記画素電極上に積層形成された複数の機能層と、前記複数の機能層上に形成された共通電極と、を有する有機EL素子であって、
前記欠陥部は、前記画素電極と前記共通電極との間に位置する異物、または、前記画素電極および前記複数の機能層に形成された突出部または凹入部である
ことを特徴とする請求項1から4のいずれか1項に記載の被覆方法。 - 下地基板と、前記下地基板上に形成された画素電極と、前記画素電極上に積層形成された複数の機能層と、前記複数の機能層上に形成された共通電極と、を有する有機EL素子の製造方法であって、
前記画素電極が形成された後で、前記共通電極が形成される前に、前記欠陥部を検出する欠陥部検出工程と、
前記欠陥部検出工程において欠陥部が検出された場合に、次の機能層または前記共通電極の形成に先立って、前記欠陥部を絶縁性材料で被覆する被覆工程と、を含み、
前記被覆工程は、
絶縁性材料と溶媒を含む混合剤を準備する第1工程と、
前記混合剤を、前記欠陥部を覆うように塗布する第2工程と、
前記欠陥部を覆うように塗布した前記混合剤中の前記溶媒を蒸発させて、前記欠陥部を前記絶縁性材料により被覆させる第3工程と、を有し、
前記溶媒の沸点は178℃以上であり、前記混合剤における前記溶媒に対する前記絶縁性材料の重量比が10%以上である
ことを特徴とする有機EL素子の製造方法。 - 前記欠陥部は、前記画素電極上に位置する
ことを特徴とする請求項6に記載の有機EL素子の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/407,202 US9515130B2 (en) | 2012-06-21 | 2013-06-20 | Covering method and organic EL element manufacturing method |
JP2014520956A JP6300320B2 (ja) | 2012-06-21 | 2013-06-20 | 被覆方法および有機el素子の製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012139619 | 2012-06-21 | ||
JP2012-139619 | 2012-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013190841A1 true WO2013190841A1 (ja) | 2013-12-27 |
Family
ID=49768454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/003838 WO2013190841A1 (ja) | 2012-06-21 | 2013-06-20 | 被覆方法および有機el素子の製造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9515130B2 (ja) |
JP (1) | JP6300320B2 (ja) |
WO (1) | WO2013190841A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014002983A (ja) * | 2012-06-21 | 2014-01-09 | Panasonic Corp | 有機el表示装置およびその製造方法 |
WO2015162891A1 (ja) * | 2014-04-23 | 2015-10-29 | 株式会社Joled | 有機el表示パネルの製造方法および有機el表示パネルの製造システム |
WO2016202938A1 (fr) * | 2015-06-16 | 2016-12-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procédé de réalisation d'un empilement du type première électrode / couche active / deuxième électrode |
JP2017091628A (ja) * | 2015-11-02 | 2017-05-25 | 株式会社Joled | 表示パネルの製造方法および表示パネル |
JP6345903B1 (ja) * | 2017-09-13 | 2018-06-20 | 堺ディスプレイプロダクト株式会社 | フレキシブルディスプレイの製造装置 |
US10290834B2 (en) | 2016-03-23 | 2019-05-14 | Japan Display Inc. | Organic electroluminescence display device and manufacturing method thereof |
US10991898B2 (en) | 2017-09-13 | 2021-04-27 | Sakai Display Products Corporation | Flexible display, method for manufacturing same, and support substrate for flexible display |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102205700B1 (ko) * | 2014-07-16 | 2021-01-21 | 삼성전자주식회사 | 유기 전계발광 표시장치 및 그 제조 방법 |
CN106129103B (zh) * | 2016-09-20 | 2023-06-30 | 合肥京东方光电科技有限公司 | 一种显示基板、其制作方法、显示面板及镀膜装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004253214A (ja) * | 2003-02-19 | 2004-09-09 | Sony Corp | 有機elデバイスの製造方法および有機elデバイス |
JP2007086419A (ja) * | 2005-09-22 | 2007-04-05 | Toppan Printing Co Ltd | 印刷物及びその製造方法。 |
JP2011033689A (ja) * | 2009-07-30 | 2011-02-17 | Ntn Corp | 塗布方法、塗布ユニット、およびパターン修正装置 |
JP2012099328A (ja) * | 2010-11-02 | 2012-05-24 | Panasonic Corp | 有機elディスプレイの製造方法 |
JP2013016342A (ja) * | 2011-07-04 | 2013-01-24 | Seiko Epson Corp | 有機エレクトロルミネッセンス表示装置の製造方法、有機エレクトロルミネッセンス表示装置のリペア方法、および電子機器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5443922A (en) | 1991-11-07 | 1995-08-22 | Konica Corporation | Organic thin film electroluminescence element |
JPH05163488A (ja) | 1991-12-17 | 1993-06-29 | Konica Corp | 有機薄膜エレクトロルミネッセンス素子 |
JP3705156B2 (ja) * | 2001-06-04 | 2005-10-12 | 株式会社日立製作所 | 平面ディスプレイパネルの配線欠陥修正方法 |
JP2006245305A (ja) * | 2005-03-03 | 2006-09-14 | Toshiba Matsushita Display Technology Co Ltd | 有機el表示装置及びその製造方法 |
JP2011108369A (ja) | 2009-11-12 | 2011-06-02 | Hitachi High-Technologies Corp | 有機エレクトロルミネセンス表示装置の製造方法、有機エレクトロルミネセンス表示装置の修正装置、および、ニードル |
US9112187B2 (en) | 2011-06-08 | 2015-08-18 | Joled Inc. | Organic el device and method of manufacturing organic EL device |
WO2013038450A1 (ja) | 2011-09-15 | 2013-03-21 | パナソニック株式会社 | 有機elパネルおよびその製造方法 |
WO2013186961A1 (ja) | 2012-06-14 | 2013-12-19 | パナソニック株式会社 | 欠陥検出方法、有機el素子のリペア方法、および有機el表示パネル |
-
2013
- 2013-06-20 WO PCT/JP2013/003838 patent/WO2013190841A1/ja active Application Filing
- 2013-06-20 JP JP2014520956A patent/JP6300320B2/ja active Active
- 2013-06-20 US US14/407,202 patent/US9515130B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004253214A (ja) * | 2003-02-19 | 2004-09-09 | Sony Corp | 有機elデバイスの製造方法および有機elデバイス |
JP2007086419A (ja) * | 2005-09-22 | 2007-04-05 | Toppan Printing Co Ltd | 印刷物及びその製造方法。 |
JP2011033689A (ja) * | 2009-07-30 | 2011-02-17 | Ntn Corp | 塗布方法、塗布ユニット、およびパターン修正装置 |
JP2012099328A (ja) * | 2010-11-02 | 2012-05-24 | Panasonic Corp | 有機elディスプレイの製造方法 |
JP2013016342A (ja) * | 2011-07-04 | 2013-01-24 | Seiko Epson Corp | 有機エレクトロルミネッセンス表示装置の製造方法、有機エレクトロルミネッセンス表示装置のリペア方法、および電子機器 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014002983A (ja) * | 2012-06-21 | 2014-01-09 | Panasonic Corp | 有機el表示装置およびその製造方法 |
WO2015162891A1 (ja) * | 2014-04-23 | 2015-10-29 | 株式会社Joled | 有機el表示パネルの製造方法および有機el表示パネルの製造システム |
US9548452B2 (en) | 2014-04-23 | 2017-01-17 | Joled Inc. | Method for manufacturing organic EL display panel and system for manufacturing organic EL display panel |
JPWO2015162891A1 (ja) * | 2014-04-23 | 2017-04-13 | 株式会社Joled | 有機el表示パネルの製造方法および有機el表示パネルの製造システム |
WO2016202938A1 (fr) * | 2015-06-16 | 2016-12-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procédé de réalisation d'un empilement du type première électrode / couche active / deuxième électrode |
FR3037723A1 (fr) * | 2015-06-16 | 2016-12-23 | Commissariat Energie Atomique | Procede de realisation d'un empilement du type premiere electrode / couche active / deuxieme electrode. |
JP2017091628A (ja) * | 2015-11-02 | 2017-05-25 | 株式会社Joled | 表示パネルの製造方法および表示パネル |
US10290834B2 (en) | 2016-03-23 | 2019-05-14 | Japan Display Inc. | Organic electroluminescence display device and manufacturing method thereof |
JP6345903B1 (ja) * | 2017-09-13 | 2018-06-20 | 堺ディスプレイプロダクト株式会社 | フレキシブルディスプレイの製造装置 |
WO2019053820A1 (ja) * | 2017-09-13 | 2019-03-21 | 堺ディスプレイプロダクト株式会社 | フレキシブルディスプレイの製造装置 |
US10516121B2 (en) | 2017-09-13 | 2019-12-24 | Sakai Display Products Corporation | Apparatus for producing flexible display |
US10991898B2 (en) | 2017-09-13 | 2021-04-27 | Sakai Display Products Corporation | Flexible display, method for manufacturing same, and support substrate for flexible display |
Also Published As
Publication number | Publication date |
---|---|
US20150221709A1 (en) | 2015-08-06 |
JP6300320B2 (ja) | 2018-03-28 |
US9515130B2 (en) | 2016-12-06 |
JPWO2013190841A1 (ja) | 2016-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6300320B2 (ja) | 被覆方法および有機el素子の製造方法 | |
US9876060B2 (en) | Method of fabricating a bank repair for organic display device | |
US8624275B2 (en) | Organic light-emitting panel for controlling an organic light emitting layer thickness and organic display device | |
US20110291086A1 (en) | Light-emitting element, light-emitting device comprising light-emitting element, and method for manufacturing light-emitting element | |
WO2013190847A1 (ja) | 有機発光素子およびその製造方法 | |
US9153791B2 (en) | Organic EL display panel | |
JP6205664B2 (ja) | バンクの補修方法、有機el表示装置及びその製造方法、 | |
US9755193B2 (en) | Bank repair method, organic EL display device, and production method for same | |
JP5658256B2 (ja) | 発光素子とその製造方法、および発光装置 | |
US10644085B2 (en) | Self-luminous display panel manufacturing method and self-luminous display panel | |
US9843010B2 (en) | Light-emitting element, light-emitting device provided with light-emitting element, and light-emitting element production method | |
US9000475B2 (en) | Light-emitter and transistor | |
JP6111488B2 (ja) | 有機el装置 | |
US10840468B2 (en) | Organic EL element and method for manufacturing organic EL element | |
JPWO2012017501A1 (ja) | 有機el素子およびその製造方法 | |
US20190206287A1 (en) | Organic el display panel, organic el display device, and method for manufacturing same | |
US10559642B2 (en) | Organic light-emitting device having a fluoride and metal based intermediate layer and production method | |
JP5899531B2 (ja) | 有機el素子の製造方法 | |
JP7257032B2 (ja) | 有機el表示パネル及び有機el表示パネルの製造方法 | |
JP6057052B2 (ja) | 表示素子、及び表示素子の製造方法 | |
JP2013235777A (ja) | 有機el素子の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13807520 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014520956 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14407202 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13807520 Country of ref document: EP Kind code of ref document: A1 |