US5456988A
Expired / Lapsed
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Organic electroluminescent device having improved durability
Assignee: Sanyo Electric Co Ltd
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Filing: 1993-02-01
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Granted: 1995-10-10
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Expires: 2013-02-01
Abstract
Abstract An electroluminescent device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer therebetween, said organic emitting layer includes an 8-quinolinol derivative-metal complex whose ligand is selected from the group consisting of chemical formulas 102 through 106: chemical formula 102 ##STR1## chemical formula 103 ##STR2## chemical formula 104 ##STR3## chemical formula 105 ##STR4## chemical formula 106 ##STR5##
Inventors
- 👤 Takeshi Sano
- 👤 Masayuki Fujita
- 👤 Takanori Fujii
- 👤 Yoshitaka Nishio
- 👤 Yuji Hamada
- 👤 Kenichi Shibata
- 👤 Kazuhiko Kuroki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:18
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; Y; Y10; Y10S; Y10S428/00; Y10S428/917
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
89 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer therebetween, said organic emitting layer comprising an 8-quinolinol derivative-metal complex whose ligand is selected from the group consisting of chemical formulas 102 through 106 chemical formula 102 ##STR102## chemical formula 103 ##STR103## chemical formula 104 ##STR104## chemical formula 105 ##STR105## chemical formula 106 ##STR106## wherein the metal of said 8-quinolinol derivative-metal complex is selected from the group consisting of beryllium, magnesium, calcium, strontium, barium zinc, cadmium., aluminum, gallium and indium.
Claim 2
Dependent Claim
89 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer therebetween, said organic emitting layer comprising an 8-quinolinol derivative-metal complex whose ligand is selected from the group consisting of chemical formulas 102 through 106 chemical formula 102 ##STR102## chemical formula 103 ##STR103## chemical formula 104 ##STR104## chemical formula 105 ##STR105## chemical formula 106 ##STR106## wherein the metal of said 8-quinolinol derivative-metal complex is selected from the group consisting of beryllium, magnesium, calcium, strontium, barium zinc, cadmium., aluminum, gallium and indium.
Claim 3
Dependent Claim
17 words
The EL device of claim 1, wherein the ligand of said 8-quinolinol derivative-metal complex is a 7-n-propyl-8-quinolinol.
Claim 4
Dependent Claim
25 words
The EL device of claim 1 having SH-A structure holding an organic hole transport layer between said hole injection electrode and said organic emitting layer.
Claim 5
Dependent Claim
41 words
The EL device of claim 1 having DH structure holding an organic hole transport layer between said hole injection electrode and said organic emitting layer, and an organic electron transport layer between said organic emitting layer and said electron injection electrode.
Claim 6
Dependent Claim
21 words
The EL device of claim 1, wherein said 8-quinolinol derivative-metal complex is used as a dopant in the organic emitting layer.
Claim 7
Dependent Claim
22 words
The EL device of claim 1, wherein said 8-quinolinol derivative-metal complex is used as a host material in the organic emitting layer.
Claim 8
Dependent Claim
78 words
The EL device of claim 3, wherein said organic hole transport layer comprises one of polyvinylcarbazole shown in chemical formula 107 and a diamine derivative shown in chemical formula 108, while said organic emitting layer comprises one of these compounds shown in chemical formulas 111, 112, 114, 118 and 119: chemical formula 107 ##STR107## chemical formula 108 ##STR108## chemical formula 111 ##STR109## chemical formula 112 ##STR110## chemical formula 114 ##STR111## chemical formula 118 ##STR112## chemical formula 119 ##STR113##
Claim 9
Dependent Claim
24 words
The EL device of claim 5, wherein said 8-quinolinol derivative-metal complex is selected from the group consisting of chemical formula: chemical formula 123 ##STR114##
Claim 10
Dependent Claim
34 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer therebetween, said organic emitting layer comprising one of a thiooxine-metal complex and a selenoxine-metal complex.
Claim 11
Dependent Claim
34 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer therebetween, said organic emitting layer comprising one of a thiooxine-metal complex and a selenoxine-metal complex.
Claim 12
Dependent Claim
38 words
The EL device of claim 9, wherein the metal of the metal complex is selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, scandium, yttrium, zinc, cadmium, aluminum, gallium, indium, lanthanum, cerium, samarium, europium, and terbium.
Claim 13
Dependent Claim
25 words
The EL device of claim 10 having SH-A structure holding an organic hole transport layer between said hole injection electrode and said organic emitting layer.
Claim 14
Dependent Claim
41 words
The EL device of claim 10 having DH structure holding an organic hole transport layer between said hole injection electrode and said organic emitting layer, and an organic electron transport layer between said organic emitting layer and said electron injection electrode.
Claim 15
Dependent Claim
15 words
The EL device of claim 9, wherein the metal complex is used as a dopant.
Claim 16
Dependent Claim
16 words
The EL device of claim 9, wherein the metal complex is used as a host material.
Claim 17
Dependent Claim
95 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer and an electron transport layer therebetween, said organic electron transport layer comprising an 8-quinolinol derivative-metal complex whose ligand is selected from the group consisting of chemical formulas 102 through 106: chemical formula 102 ##STR115## chemical formula 103 ##STR116## chemical formula 104 ##STR117## chemical formula 105 ##STR118## chemical formula 106 ##STR119## wherein the metal of said 8-quinolinol derivative-metal complex is selected from the group consisting of beryllium, magnesium calcium, strontium, barium, zinc, cadmium, aluminum, gallium and indium.
Claim 18
Dependent Claim
95 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer and an electron transport layer therebetween, said organic electron transport layer comprising an 8-quinolinol derivative-metal complex whose ligand is selected from the group consisting of chemical formulas 102 through 106: chemical formula 102 ##STR115## chemical formula 103 ##STR116## chemical formula 104 ##STR117## chemical formula 105 ##STR118## chemical formula 106 ##STR119## wherein the metal of said 8-quinolinol derivative-metal complex is selected from the group consisting of beryllium, magnesium calcium, strontium, barium, zinc, cadmium, aluminum, gallium and indium.
Claim 19
Dependent Claim
33 words
The EL device of claim 15, wherein the metal of said 8-quinolinol derivative-metal complex is selected from metals belonging to one of the II group and the III group in the periodic table.
Claim 20
Dependent Claim
23 words
The EL device of claim 16 having SH-B structure holding said organic emitting layer and said organic electron transport layer between said electrodes.
Claim 21
Dependent Claim
25 words
The EL device of claim 16 having DH structure holding an organic hole transport layer between said hole injection electrode and said organic emitting layer.
Claim 22
Dependent Claim
43 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer and an organic electron transport layer between said electrodes, said organic electron transport layer comprising one of a thiooxine-metal complex and a selenoxine-metal complex.
Claim 23
Dependent Claim
43 words
An EL device having a hole injection electrode, an electron injection electrode, and at least an organic emitting layer and an organic electron transport layer between said electrodes, said organic electron transport layer comprising one of a thiooxine-metal complex and a selenoxine-metal complex.
Claim 24
Dependent Claim
32 words
The EL device of claim 19, wherein the metal of the metal complex is selected from metals belonging to one of the II group and the III Group in the periodic table.
Claim 25
Dependent Claim
23 words
The EL device of claim 20 having SH-B structure holding said organic emitting layer and said organic electron transport layer between said electrodes.
Claim 26
Dependent Claim
25 words
The EL device of claim 20 having DH structure holding an organic hole transport layer between said hole injection electrode and said organic emitting layer.
Claim 27
Dependent Claim
47 words
The EL device of claim 11, wherein said organic hole transport layer comprises polyvinylcarbazole shown in chemical formula 140, said organic emitting layer comprises one of these compounds shown in chemical formulas 141 and 142: chemical formula 140 ##STR120## chemical formula 141 ##STR121## chemical formula 142 ##STR122##
Claim 28
Dependent Claim
71 words
The EL device of claim 18, wherein said organic emitting layer comprises a perynone derivative shown in chemical formula 148, said organic hole transport layer comprises polyvinylcarbazole shown in chemical formula 149, and said organic electron transport layer comprises one of these compounds shown in chemical formulas 152, 153 and 154: chemical formula 148 ##STR123## chemical formula 149 ##STR124## chemical formula 152 ##STR125## chemical formula 153 ##STR126## chemical formula 154 ##STR127##
Claim 29
Dependent Claim
58 words
The EL device of claim 21, wherein said organic emitting layer comprises a perynone derivative shown in chemical formula 155, said organic hole transport layer comprises polyvinylcarbazole shown in chemical formula 156, and said organic electron transport layer comprises a compound shown in chemical formula 157: chemical formula 155 ##STR128## chemical formula 156 ##STR129## chemical formula 157 ##STR130##
References Cited (Backward Citations)
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