JPWO2019106715A1 - 有機el発光素子及びその製造方法 - Google Patents
有機el発光素子及びその製造方法 Download PDFInfo
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- JPWO2019106715A1 JPWO2019106715A1 JP2018533846A JP2018533846A JPWO2019106715A1 JP WO2019106715 A1 JPWO2019106715 A1 JP WO2019106715A1 JP 2018533846 A JP2018533846 A JP 2018533846A JP 2018533846 A JP2018533846 A JP 2018533846A JP WO2019106715 A1 JPWO2019106715 A1 JP WO2019106715A1
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- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003072 pyrazolidinyl group Chemical group 0.000 description 1
- 125000002755 pyrazolinyl group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000002112 pyrrolidino group Chemical group [*]N1C([H])([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- GGVMPKQSTZIOIU-UHFFFAOYSA-N quaterrylene Chemical group C12=C3C4=CC=C2C(C2=C56)=CC=C5C(C=57)=CC=CC7=CC=CC=5C6=CC=C2C1=CC=C3C1=CC=CC2=CC=CC4=C21 GGVMPKQSTZIOIU-UHFFFAOYSA-N 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical group C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 150000003967 siloles Chemical group 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- JLZUZNKTTIRERF-UHFFFAOYSA-N tetraphenylethylene Chemical group C1=CC=CC=C1C(C=1C=CC=CC=1)=C(C=1C=CC=CC=1)C1=CC=CC=C1 JLZUZNKTTIRERF-UHFFFAOYSA-N 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- JFLKFZNIIQFQBS-FNCQTZNRSA-N trans,trans-1,4-Diphenyl-1,3-butadiene Chemical group C=1C=CC=CC=1\C=C\C=C\C1=CC=CC=C1 JFLKFZNIIQFQBS-FNCQTZNRSA-N 0.000 description 1
- 238000006478 transmetalation reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 235000019798 tripotassium phosphate Nutrition 0.000 description 1
- NHDIQVFFNDKAQU-UHFFFAOYSA-N tripropan-2-yl borate Chemical compound CC(C)OB(OC(C)C)OC(C)C NHDIQVFFNDKAQU-UHFFFAOYSA-N 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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Abstract
Description
有機層であり、前記オリゴマーの分子量が、300以上、5000以下である。
(1)本発明の第一の実施形態に係る有機EL発光素子は、基板と、前記基板の表面の上に設けられた第1電極と、前記第1電極の少なくとも一部を取り囲むべく形成された絶縁バンクと、前記絶縁バンクによって取り囲まれた第1電極の上に形成された有機層と、前記有機層の上に形成された第2電極とを備え、前記有機層が、有機材料のオリゴマーを含む塗布型の有機層であり、前記オリゴマーの分子量が、300以上、5000以下である。
で示される構造であることが好ましい。有機EL発光素子の有機層がこのようなオリゴマーを含むことによって優れた光学特性が得られる。
で示される構造であることが好ましい。有機EL発光素子の有機層がこのようなオリゴマーを含むことによって優れた光学特性が得られる。
22 第1電極
23 絶縁バンク
23a 開口
25 塗膜
25a 塗布液
26 有機層
27 第2電極
28 保護膜
31 ノズル
Claims (14)
- 基板と、
前記基板の表面の上に設けられた第1電極と、
前記第1電極の少なくとも一部を取り囲むべく形成された絶縁バンクと、
前記絶縁バンクによって取り囲まれた第1電極の上に形成された有機層と、
前記有機層の上に形成された第2電極と
を備え、
前記有機層が、有機材料のオリゴマーを含む塗布型の有機層であり、
前記オリゴマーの分子量が、300以上、5000以下である、有機EL発光素子。 - 前記オリゴマーが、−[Y]−の一般式で示される構造単位を含むモノマーの重合体であって、
Yは、トリアリールアミン骨格、リレン骨格、アントラセン骨格、ジスチリルアリーレン骨格及びキナクリドン骨格からなる群より選択される骨格を含む、請求項1に記載の有機EL発光素子。 - 前記オリゴマーが、2〜10個の前記モノマーが重合した重合体である、請求項2に記載の有機EL発光素子。
- 前記構造単位におけるYが、ペリレン骨格を含む、請求項2に記載の有機EL発光素子。
- Ra1及びRa2が、それぞれ独立して、水素原子、置換または無置換の直鎖、環状または分岐のアルキル基であり、Ra3が水素原子である、請求項8に記載の有機EL発光素子。
- 基板の表面の上に、第1電極を形成する工程と、
前記第1電極の少なくとも一部を取り囲むように絶縁バンクを形成する工程と、
前記絶縁バンクで取り囲まれた領域の前記第1電極の上に、塗布型の有機層を形成する工程と、
前記有機層の上に、第2電極を形成する工程と、
を含み、
有機材料のオリゴマーを含む液状組成物をインクジェット法によって1滴当たり0.05pL〜1pLの液滴を滴下することで前記有機層を形成する、有機EL発光素子の製造方法。 - 前記液状組成物中における前記オリゴマー濃度が、10〜30質量%である、請求項11に記載の製造方法。
- 前記液状組成物が、0.6×10-3Pa・s以上で、3×10-3Pa・s以下の粘度を有する、請求項11または12に記載の製造方法。
- 前記インクジェット法による滴下を、前記絶縁バンクで囲まれた領域の範囲で前記液状組成物を滴下するノズルを移動しながら行う、請求項11〜13のいずれか1項に記載の製造方法。
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