ORGANIC ELECTROLUMINESCENT ELEMENT
To provide an organic electroluminescent device having long lifetime characteristics while having a low driving voltage and high power efficiency. The organic electroluminescent device includes one or more light-emitting layers between an anode and a cathode opposed to each other, wherein at least o...
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| creator | IKENAGA Yuji HAYASHI Kentaro KITAHARA Ikumi IZUMI Haruka OGAWA Junya TERADA Ayaka KAI Takahiro NOGUCHI Katsuhide YOSHIDA Kazunari KAWADA Atsushi |
| description | To provide an organic electroluminescent device having long lifetime characteristics while having a low driving voltage and high power efficiency. The organic electroluminescent device includes one or more light-emitting layers between an anode and a cathode opposed to each other, wherein at least one of the light-emitting layers contains a host material including a first host material, a second host material and a third host material, and a light-emitting dopant material. A LUMO energy of the first host material is -1.95 eV or less, and LM2 ≥ LM3 ≥ LM1 is satisfied under the assumption that LUMO energies of the first host material, the second host material and the third host material are LM1, LM2 and LM3, respectively. A suitable first host material is an indolocarbazole compound represented by general formula (1), a suitable second host material is, for example, a biscarbazole compound represented by general formula (2), and a suitable third host material is an indolocarbazole compound represented by general formula (5) . |
| format | Patent |
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The organic electroluminescent device includes one or more light-emitting layers between an anode and a cathode opposed to each other, wherein at least one of the light-emitting layers contains a host material including a first host material, a second host material and a third host material, and a light-emitting dopant material. A LUMO energy of the first host material is -1.95 eV or less, and LM2 ≥ LM3 ≥ LM1 is satisfied under the assumption that LUMO energies of the first host material, the second host material and the third host material are LM1, LM2 and LM3, respectively. A suitable first host material is an indolocarbazole compound represented by general formula (1), a suitable second host material is, for example, a biscarbazole compound represented by general formula (2), and a suitable third host material is an indolocarbazole compound represented by general formula (5) .</description><language>eng ; fre ; ger</language><subject>ADHESIVES ; CHEMISTRY ; DYES ; ELECTRIC HEATING ; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; HETEROCYCLIC COMPOUNDS ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; ORGANIC CHEMISTRY ; PAINTS ; POLISHES</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230503&DB=EPODOC&CC=EP&NR=4174062A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230503&DB=EPODOC&CC=EP&NR=4174062A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IKENAGA Yuji</creatorcontrib><creatorcontrib>HAYASHI Kentaro</creatorcontrib><creatorcontrib>KITAHARA Ikumi</creatorcontrib><creatorcontrib>IZUMI Haruka</creatorcontrib><creatorcontrib>OGAWA Junya</creatorcontrib><creatorcontrib>TERADA Ayaka</creatorcontrib><creatorcontrib>KAI Takahiro</creatorcontrib><creatorcontrib>NOGUCHI Katsuhide</creatorcontrib><creatorcontrib>YOSHIDA Kazunari</creatorcontrib><creatorcontrib>KAWADA Atsushi</creatorcontrib><title>ORGANIC ELECTROLUMINESCENT ELEMENT</title><description>To provide an organic electroluminescent device having long lifetime characteristics while having a low driving voltage and high power efficiency. 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A suitable first host material is an indolocarbazole compound represented by general formula (1), a suitable second host material is, for example, a biscarbazole compound represented by general formula (2), and a suitable third host material is an indolocarbazole compound represented by general formula (5) .</description><subject>ADHESIVES</subject><subject>CHEMISTRY</subject><subject>DYES</subject><subject>ELECTRIC HEATING</subject><subject>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>ORGANIC CHEMISTRY</subject><subject>PAINTS</subject><subject>POLISHES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFDyD3J39PN0VnD1cXUOCfL3CfX19HMNdnb1CwEJ-QJpHgbWtMSc4lReKM3NoODmGuLsoZtakB-fWlyQmJyal1oS7xpgYmhuYmBm5GhoTIQSAA5VIkM</recordid><startdate>20230503</startdate><enddate>20230503</enddate><creator>IKENAGA Yuji</creator><creator>HAYASHI Kentaro</creator><creator>KITAHARA Ikumi</creator><creator>IZUMI Haruka</creator><creator>OGAWA Junya</creator><creator>TERADA Ayaka</creator><creator>KAI Takahiro</creator><creator>NOGUCHI Katsuhide</creator><creator>YOSHIDA Kazunari</creator><creator>KAWADA Atsushi</creator><scope>EVB</scope></search><sort><creationdate>20230503</creationdate><title>ORGANIC ELECTROLUMINESCENT ELEMENT</title><author>IKENAGA Yuji ; HAYASHI Kentaro ; KITAHARA Ikumi ; IZUMI Haruka ; OGAWA Junya ; TERADA Ayaka ; KAI Takahiro ; NOGUCHI Katsuhide ; YOSHIDA Kazunari ; KAWADA Atsushi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4174062A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2023</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>DYES</topic><topic>ELECTRIC HEATING</topic><topic>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>ORGANIC CHEMISTRY</topic><topic>PAINTS</topic><topic>POLISHES</topic><toplevel>online_resources</toplevel><creatorcontrib>IKENAGA Yuji</creatorcontrib><creatorcontrib>HAYASHI Kentaro</creatorcontrib><creatorcontrib>KITAHARA Ikumi</creatorcontrib><creatorcontrib>IZUMI Haruka</creatorcontrib><creatorcontrib>OGAWA Junya</creatorcontrib><creatorcontrib>TERADA Ayaka</creatorcontrib><creatorcontrib>KAI Takahiro</creatorcontrib><creatorcontrib>NOGUCHI Katsuhide</creatorcontrib><creatorcontrib>YOSHIDA Kazunari</creatorcontrib><creatorcontrib>KAWADA Atsushi</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IKENAGA Yuji</au><au>HAYASHI Kentaro</au><au>KITAHARA Ikumi</au><au>IZUMI Haruka</au><au>OGAWA Junya</au><au>TERADA Ayaka</au><au>KAI Takahiro</au><au>NOGUCHI Katsuhide</au><au>YOSHIDA Kazunari</au><au>KAWADA Atsushi</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ORGANIC ELECTROLUMINESCENT ELEMENT</title><date>2023-05-03</date><risdate>2023</risdate><abstract>To provide an organic electroluminescent device having long lifetime characteristics while having a low driving voltage and high power efficiency. The organic electroluminescent device includes one or more light-emitting layers between an anode and a cathode opposed to each other, wherein at least one of the light-emitting layers contains a host material including a first host material, a second host material and a third host material, and a light-emitting dopant material. A LUMO energy of the first host material is -1.95 eV or less, and LM2 ≥ LM3 ≥ LM1 is satisfied under the assumption that LUMO energies of the first host material, the second host material and the third host material are LM1, LM2 and LM3, respectively. A suitable first host material is an indolocarbazole compound represented by general formula (1), a suitable second host material is, for example, a biscarbazole compound represented by general formula (2), and a suitable third host material is an indolocarbazole compound represented by general formula (5) .</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | ADHESIVES CHEMISTRY DYES ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES |
| title | ORGANIC ELECTROLUMINESCENT ELEMENT |
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