JP7123967B2 - 有機発光ダイオード(oled)のための印刷方法 - Google Patents
有機発光ダイオード(oled)のための印刷方法 Download PDFInfo
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- JP7123967B2 JP7123967B2 JP2019553870A JP2019553870A JP7123967B2 JP 7123967 B2 JP7123967 B2 JP 7123967B2 JP 2019553870 A JP2019553870 A JP 2019553870A JP 2019553870 A JP2019553870 A JP 2019553870A JP 7123967 B2 JP7123967 B2 JP 7123967B2
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- 125000006165 cyclic alkyl group Chemical group 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 150000007858 diazaphosphole derivatives Chemical class 0.000 description 1
- IYYZUPMFVPLQIF-ALWQSETLSA-N dibenzothiophene Chemical class C1=CC=CC=2[34S]C3=C(C=21)C=CC=C3 IYYZUPMFVPLQIF-ALWQSETLSA-N 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- BKMIWBZIQAAZBD-UHFFFAOYSA-N diindenoperylene Chemical compound C12=C3C4=CC=C2C2=CC=CC=C2C1=CC=C3C1=CC=C2C3=CC=CC=C3C3=CC=C4C1=C32 BKMIWBZIQAAZBD-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- DKHNGUNXLDCATP-UHFFFAOYSA-N dipyrazino[2,3-f:2',3'-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile Chemical compound C12=NC(C#N)=C(C#N)N=C2C2=NC(C#N)=C(C#N)N=C2C2=C1N=C(C#N)C(C#N)=N2 DKHNGUNXLDCATP-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- HKNRNTYTYUWGLN-UHFFFAOYSA-N dithieno[3,2-a:2',3'-d]thiophene Chemical compound C1=CSC2=C1SC1=C2C=CS1 HKNRNTYTYUWGLN-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000036251 extravasation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- YLQWCDOCJODRMT-UHFFFAOYSA-N fluoren-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C2=C1 YLQWCDOCJODRMT-UHFFFAOYSA-N 0.000 description 1
- 150000008376 fluorenones Chemical class 0.000 description 1
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000004773 frontier orbital Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 229940083761 high-ceiling diuretics pyrazolone derivative Drugs 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- WUNJCKOTXFSWBK-UHFFFAOYSA-N indeno[2,1-a]carbazole Chemical class C1=CC=C2C=C3C4=NC5=CC=CC=C5C4=CC=C3C2=C1 WUNJCKOTXFSWBK-UHFFFAOYSA-N 0.000 description 1
- PJULCNAVAGQLAT-UHFFFAOYSA-N indeno[2,1-a]fluorene Chemical group C1=CC=C2C=C3C4=CC5=CC=CC=C5C4=CC=C3C2=C1 PJULCNAVAGQLAT-UHFFFAOYSA-N 0.000 description 1
- SWGQKRKXZZPKJA-UHFFFAOYSA-N indeno[2,1-a]fluorene-1,2-diamine Chemical class C1=CC=C2C=C3C4=CC5=C(N)C(N)=CC=C5C4=CC=C3C2=C1 SWGQKRKXZZPKJA-UHFFFAOYSA-N 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- VVVPGLRKXQSQSZ-UHFFFAOYSA-N indolo[3,2-c]carbazole Chemical class C1=CC=CC2=NC3=C4C5=CC=CC=C5N=C4C=CC3=C21 VVVPGLRKXQSQSZ-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229940079865 intestinal antiinfectives imidazole derivative Drugs 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical group II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000007759 kiss coating Methods 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- QDLAGTHXVHQKRE-UHFFFAOYSA-N lichenxanthone Natural products COC1=CC(O)=C2C(=O)C3=C(C)C=C(OC)C=C3OC2=C1 QDLAGTHXVHQKRE-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- ABCGFHPGHXSVKI-UHFFFAOYSA-O meso-tetrakis(n-methyl-4-pyridyl)porphine(4+) Chemical compound C1=C[N+](C)=CC=C1C(C1=CC=C(N1)C(C=1C=C[N+](C)=CC=1)=C1C=CC(=N1)C(C=1C=C[N+](C)=CC=1)=C1C=CC(N1)=C1C=2C=C[N+](C)=CC=2)=C2N=C1C=C2 ABCGFHPGHXSVKI-UHFFFAOYSA-O 0.000 description 1
- 238000007760 metering rod coating Methods 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004776 molecular orbital Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- RYZPDEZIQWOVPJ-UHFFFAOYSA-N n-naphthalen-1-yl-n-[4-[4-[naphthalen-1-yl(naphthalen-2-yl)amino]phenyl]phenyl]naphthalen-2-amine Chemical group C1=CC=C2C(N(C=3C=CC(=CC=3)C=3C=CC(=CC=3)N(C=3C=C4C=CC=CC4=CC=3)C=3C4=CC=CC=C4C=CC=3)C3=CC4=CC=CC=C4C=C3)=CC=CC2=C1 RYZPDEZIQWOVPJ-UHFFFAOYSA-N 0.000 description 1
- 125000006608 n-octyloxy group Chemical group 0.000 description 1
- 125000003935 n-pentoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- LKKPNUDVOYAOBB-UHFFFAOYSA-N naphthalocyanine Chemical class N1C(N=C2C3=CC4=CC=CC=C4C=C3C(N=C3C4=CC5=CC=CC=C5C=C4C(=N4)N3)=N2)=C(C=C2C(C=CC=C2)=C2)C2=C1N=C1C2=CC3=CC=CC=C3C=C2C4=N1 LKKPNUDVOYAOBB-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- NFBOHOGPQUYFRF-UHFFFAOYSA-N oxanthrene Chemical compound C1=CC=C2OC3=CC=CC=C3OC2=C1 NFBOHOGPQUYFRF-UHFFFAOYSA-N 0.000 description 1
- 150000007978 oxazole derivatives Chemical class 0.000 description 1
- 150000002921 oxetanes Chemical group 0.000 description 1
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 1
- YRZZLAGRKZIJJI-UHFFFAOYSA-N oxyvanadium phthalocyanine Chemical compound [V+2]=O.C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 YRZZLAGRKZIJJI-UHFFFAOYSA-N 0.000 description 1
- 150000002979 perylenes Chemical class 0.000 description 1
- 150000002988 phenazines Chemical class 0.000 description 1
- 125000001791 phenazinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3N=C12)* 0.000 description 1
- 150000002990 phenothiazines Chemical class 0.000 description 1
- GJSGGHOYGKMUPT-UHFFFAOYSA-N phenoxathiine Chemical compound C1=CC=C2OC3=CC=CC=C3SC2=C1 GJSGGHOYGKMUPT-UHFFFAOYSA-N 0.000 description 1
- 125000001644 phenoxazinyl group Chemical class C1(=CC=CC=2OC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 125000005543 phthalimide group Chemical class 0.000 description 1
- SIOXPEMLGUPBBT-UHFFFAOYSA-M picolinate Chemical compound [O-]C(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-M 0.000 description 1
- 229940081066 picolinic acid Drugs 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- 150000003216 pyrazines Chemical class 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
- BUAWIRPPAOOHKD-UHFFFAOYSA-N pyrene-1,2-diamine Chemical class C1=CC=C2C=CC3=C(N)C(N)=CC4=CC=C1C2=C43 BUAWIRPPAOOHKD-UHFFFAOYSA-N 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- WVIICGIFSIBFOG-UHFFFAOYSA-N pyrylium Chemical compound C1=CC=[O+]C=C1 WVIICGIFSIBFOG-UHFFFAOYSA-N 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [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
- 150000003839 salts Chemical class 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007764 slot die coating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000001629 stilbenes Chemical class 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003513 tertiary aromatic amines Chemical class 0.000 description 1
- 150000004867 thiadiazoles Chemical class 0.000 description 1
- GVIJJXMXTUZIOD-UHFFFAOYSA-N thianthrene Chemical compound C1=CC=C2SC3=CC=CC=C3SC2=C1 GVIJJXMXTUZIOD-UHFFFAOYSA-N 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- VJYJJHQEVLEOFL-UHFFFAOYSA-N thieno[3,2-b]thiophene Chemical compound S1C=CC2=C1C=CS2 VJYJJHQEVLEOFL-UHFFFAOYSA-N 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 150000004882 thiopyrans Chemical class 0.000 description 1
- NZFNXWQNBYZDAQ-UHFFFAOYSA-N thioridazine hydrochloride Chemical compound Cl.C12=CC(SC)=CC=C2SC2=CC=CC=C2N1CCC1CCCCN1C NZFNXWQNBYZDAQ-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
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- H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
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Description
HOMO(eV)=((HEh*27.212)-0.9899)/1.1206LUMO(eV)=((LEh*27.212)-2.0041)/1.385
本願の目的のため、これらの値をそれぞれ材料のHOMOおよびLUMOエネルギー準位とみなすこととする。
群1:正孔注入および/または正孔輸送特性を生成することができる構造要素;群2:電子注入および/または電子輸送特性を生成することができる構造要素;群3:群1および群2に関連して記載される特性を併せ持つ構造要素;
群4:発光特性、特にリン光基を有する構造要素;
群5:いわゆる一重項状態から三重項状態への移行を改善する構造要素;
群6:結果として得られるポリマーの形態または発光色に影響を与える構造要素;群7:典型的には骨格として使用される構造要素。
Ar1は、各場合において、異なる反復単位に対して同一であるかまたは異なり、単結合、または任意に置換されていてもよい単環式もしくは多環式アリール基であり;
Ar2は、各場合において、異なる反復単位に対して同一であるかまたは異なり、任意に置換されていてもよい単環式または多環式アリール基であり;
Ar3は、各場合において、異なる反復単位に対して同一であるかまたは異なり、任意に置換されていてもよい単環式または多環式アリール基であり;
mは、1、2または3である)。
Raは、出現する毎に同一であるかまたは異なり、H、置換もしくは無置換芳香族もしくはヘテロ芳香族基、アルキル、シクロアルキル、アルコキシ、アラルキル、アリールオキシ、アリールチオ、アルコキシカルボニル、シリルもしくはカルボキシル基、ハロゲン原子、シアノ基、ニトロ基、またはヒドロキシ基であり;
rは、0、1、2、3または4であり、
sは、0、1、2、3、4または5である)。
T1およびT2は、チオフェン、セレノフェン、チエノ[2,3-b]チオフェン、チエノ[3,2-b]チオフェン、ジチエノチオフェン、ピロールおよびアニリンから独立して選択され、ここで、これらの基は1つ以上のラジカルRbによって置換されていてもよく;
Rbは、出現する毎にハロゲン、-CN、-NC、-NCO、-NCS、-OCN、-SCN、-C(=O)NR0R00、-C(=O)X、-C(=O)R0、-NH2、-NR0R00、-SH、-SR0、-SO3H、-SO2R0、-OH、-NO2、-CF3、-SF5、任意に置換されていてもよく任意に1個以上のヘテロ原子を含有していてもよい、1~40個の炭素原子を有する任意に置換されていてもよいシリル、カルビルまたはヒドロカルビル基から独立して選択され;
R0およびR00は、それぞれ独立してH、または任意に置換されていてもよく任意に1個以上のヘテロ原子を含有していてもよい、1~40個の炭素原子を有する任意に置換されていてもよいカルビルもしくはヒドロカルビル基であり;
Ar7およびAr8は、互いに独立して、任意に置換されていてもよく任意に隣接するチオフェンまたはセレノフェン基の一方または両方の2,3位に結合していてもよい、単環式または多環式アリールまたはヘテロアリール基を表し;
cおよびeは、互いに独立して0、1、2、3または4であり、ここで、1<c+e≦6であり;
dおよびfは、互いに独立して0、1、2、3または4である)。
A、BおよびB’はそれぞれ、また、異なる反復単位に対して同一であるかまたは異なっており、好ましくは-CRcRd-、-NRc-、-PRc-、-O-、-S-、-SO-、-SO2-、-CO-、-CS-、-CSe-、-P(=O)Rc-、-P(=S)Rc-および-SiRcRd-から選択される二価基であり;
RcおよびRdは、出現する毎にH、ハロゲン、-CN、-NC、-NCO、-NCS、-OCN、-SCN、-C(=O)NR0R00、-C(=O)X、-C(=O)R0、-NH2、-NR0R00、-SH、-SR0、-SO3H、-SO2R0、-OH、-NO2、-CF3、-SF5、任意に置換されていてもよく任意に1個以上のヘテロ原子を含有していてもよい1~40個の炭素原子を有する任意に置換されていてもよいシリル、カルビルまたはヒドロカルビル基から独立して選択され、ここで、RcおよびRdは、任意にそれらが結合しているフルオレンラジカルと共にスピロ基を形成してもよく;
Xは、ハロゲンであり;
R0およびR00はそれぞれ独立して、H、または任意に置換されていてもよく任意に1個以上のヘテロ原子を含有していてもよい、1~40個の炭素原子を有する任意に置換されていてもよいカルビルもしくはヒドロカルビル基であり;
gは、各場合において、独立して0または1であり、hは、各場合において、独立して0または1であり、ここで、副単位中のgとhの合計は好ましくは1であり;
mは、1以上の整数であり;
Ar1およびAr2は、互いに独立して任意に置換されていてもよく任意にインデノフルオレンの7,8位または8,9位に結合されていてもよい単環式または多環式アリールまたはヘテロアリール基を表し;
aおよびbは、互いに独立して0または1である)。
Lは、H、ハロゲン、または1~12個のC原子を有する任意にフッ素化されていてもよい直鎖状もしくは分枝アルキルもしくはアルコキシ基であり、好ましくはメチル、i-プロピル、t-ブチル、n-ペントキシまたはトリフルオロメチルを表し;
L’は、1~12個のC原子を有する任意にフッ素化されていてもよい直鎖状または分枝アルキルまたはアルコキシ基であり、好ましくはn-オクチルまたはn-オクチルオキシを表す)。
例1
印刷用インクを、下記の手順により調製した。
プリントヘッド:Fujifilm Dimatix SQ
液滴体積:10plの液滴体積
液滴直径:約27μ
温度:25℃
調合物:メシチレン中0.5%HTM-001
粘度:20℃で0.975cp
ピクセル幅:23μ
バンク幅:5μ
粘度は、TA Instruments製造のAR-G2レオメータで25℃の温度で測定することにより決定する。この測定は、40mmの平行プレート構造を使用して10~1000s-1のせん断範囲に亘り行うことができる。
1個の液滴の印刷
図2は、1個の液滴を印刷する場合の最適化した波形と、結果として得られた液滴を示す。この画像上での遅延は200μsであったため、液滴速度は2ms-1前後である。
2個の液滴の印刷
例1に記載した方法と同様の方法でインクを調製した。使用した印刷パラメータは極めて標準的なものであり、初期上昇および降下が同じ時間であった。図示するように、概ね均一なサイズの2個の液滴が形成される。
多数滴の印刷
最終試験は、多数滴を印刷することである。印刷パラメータが液滴形成に与える影響を調べると、一定の条件下で、同様のサイズの比較的安定した一連の液滴が形成されることが観察された。印刷パラメータはできる限り多くの小さな液滴を最も分離した状態で与えるように最適化されている。
以下に、出願当初の特許請求の範囲に記載の事項を、そのまま、付記しておく。
[1] 少なくとも1種の有機半導体材料を含有するOLEDの1つ以上の層を製造する方法であって、
- 前記OLEDを印刷するための圧電印刷デバイス用の印刷ヘッドを選択する工程; - 前記圧電印刷デバイスを用いて、溶液を基板上に印刷する工程であって、前記溶液は、少なくとも1種の有機溶媒と少なくとも1種の有機半導体材料とを含有する、工程、及び
- 印刷した溶液を乾燥させる工程
を含み、
前記溶液が5cP未満の粘度を有し、
前記圧電印刷デバイスを作動させるための電気インパルスが、本質的に等しいサイズの少なくとも2個の液粒が形成されるように、使用される前記印刷ヘッドに対応して制御されることを特徴とする、方法。
[2] 前記溶液が、少なくとも1.0%の濃度の小分子有機半導体材料を含む、[1]に記載の方法。
[3] 前記溶液が、2.5%以下の濃度の高分子有機半導体材料を含む、[1]に記載の方法。
[4] 前記溶液が、結果として得られる粘度が5cP未満となる少なくとも2種の有機溶媒を含む、[1]ないし[3]の何れか1項に記載の方法。
[5] 前記少なくとも2種の溶媒の沸点が、少なくとも10℃の最小差を有する、[4]に記載の方法。
[6] 前記溶液が、150℃乃至300℃の範囲の沸点を有する2種の溶媒を有する、[1]ないし[5]の何れか1項に記載の方法。
[7] 前記溶液を乾燥させる前記工程が、前記OLEDを印刷した後の真空乾燥プロセスを含む、[1]ないし[6]の何れか1項に記載の方法。
[8] 前記真空乾燥プロセスにおける硬化させる工程が20℃以上の温度で実施される、[7]に記載の方法。
[9] 前記圧電印刷デバイスを作動させるための前記電気インパルスを制御することが、前記電気インパルスの最大電圧、上昇、降下および/または長さの制御を含む、[1]ないし[8]の何れか1項に記載の方法。
[10] 前記印刷が、サイズが30pl以下の印刷ヘッドを用いて実施される、[1]ないし[9]の何れか1項に記載の方法。
[11] [1]ないし[10]の何れか1項に記載の方法を用いて製造されるOLED。
[12] 印刷ヘッドを有する圧電印刷デバイスであって、前記圧電印刷デバイスに少なくとも1種の有機溶媒と少なくとも1種の有機半導体材料とを含有する印刷溶液が供給され、前記印刷ヘッドが、本質的に等しいサイズの少なくとも2個の液粒が形成されるように、前記印刷ヘッドに対応して制御されている電気インパルスによって作動することを特徴とする、圧電印刷デバイス。
[13] 前記印刷ヘッドが、30pl以下のサイズである、[12]に記載の圧電印刷デバイス。
[14] 前記印刷溶液が、少なくとも1.0%の濃度の小分子OLEDを含む、[12]または[13]に記載の圧電印刷デバイス。
[15] 前記印刷溶液が、2.5%以下の濃度の高分子OLED(POLED)を含む、[12]または[13]に記載の圧電印刷デバイス。
[16] 前記印刷溶液が、結果として得られる粘度が5cP未満となる少なくとも2種の有機溶媒を含む、[12]~[15]の何れか1項に記載の圧電印刷デバイス。
[17] 前記少なくとも2種の印刷溶媒の沸点が、少なくとも10℃の最小差を有する、[12]~[16]の何れか1項に記載の圧電印刷デバイス。
[18] 前記印刷溶液が、150℃乃至300℃の範囲の沸点を有する2種の溶媒を有する、[12]~[17]の何れか1項に記載の圧電印刷デバイス。
Claims (10)
- 少なくとも1種の有機半導体材料を含有するOLEDの1つ以上の層を製造する方法であって、
- 前記OLEDを印刷するための圧電印刷デバイス用の印刷ヘッドを選択する工程; - 前記圧電印刷デバイスを用いて、溶液を基板上に印刷する工程であって、前記溶液は、少なくとも1種の有機溶媒と少なくとも1種の有機半導体材料とを含有する、工程、及び
- 印刷した溶液を乾燥させる工程
を含み、
前記溶液が5cP未満の粘度を有し、
前記圧電印刷デバイスを作動させるための電気インパルスは、最大直径を有する液粒と最小直径を有する液粒の直径差が20%以下である少なくとも2個の液粒が形成されるように、サイズが30pl以下の液滴を生成する、使用される前記印刷ヘッドに対応して制御されることを特徴とする、方法。 - 前記溶液が、少なくとも1.0%の濃度の小分子有機半導体材料を含む、請求項1に記載の方法。
- 前記溶液が、2.5%以下の濃度の高分子有機半導体材料を含む、請求項1に記載の方法。
- 前記溶液が、結果として得られる粘度が5cP未満となる少なくとも2種の有機溶媒を含む、請求項1ないし3の何れか1項に記載の方法。
- 前記少なくとも2種の有機溶媒の沸点が、少なくとも10℃の最小差を有する、請求項4に記載の方法。
- 前記溶液が、150℃乃至300℃の範囲の沸点を有する2種の有機溶媒を有する、請求項1ないし5の何れか1項に記載の方法。
- 前記溶液を乾燥させる前記工程が、前記OLEDを印刷した後の真空乾燥プロセスを含む、請求項1ないし6の何れか1項に記載の方法。
- 前記真空乾燥プロセスにおける硬化させる工程が20℃以上の温度で実施される、請求項7に記載の方法。
- 前記圧電印刷デバイスを作動させるための前記電気インパルスを制御することが、前記電気インパルスの最大電圧、上昇、降下および/または長さの制御を含む、請求項1ないし8の何れか1項に記載の方法。
- 前記印刷が、サイズが30pl以下の印刷ヘッドを用いて実施される、請求項1ないし9の何れか1項に記載の方法。
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| CN110446611A (zh) | 2019-11-12 |
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