ORGANIC EL DEVICE AS WELL AS DISPLAY APPARATUS, IMAGE PICKUP APPARATUS, COMMUNICATION APPARATUS, LIGHTING APPARATUS, LUMINAIRE, AND MOVING BODY EACH INCLUDING THE SAME

An organic EL device includes at least an anode, a first light-emitting layer, an intermediate layer, a second light-emitting layer, and a cathode in this order. The intermediate layer is adjacent to the first light-emitting layer and the second light-emitting layer. The first light-emitting layer a...

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Main Authors Takahira, Moe, Yamada, Naoki, Miyashita, Hirokazu, Takaya, Itaru, Kamatani, Jun, Shiobara, Satoru, Iida, Haruna, Ito, Takayuki, Kotake, Tomokazu, Yamaguchi, Tomona
Format Patent
LanguageEnglish
Published 29.04.2021
Subjects
BASIC ELECTRIC ELEMENTS
BLASTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-PORTABLE LIGHTING DEVICES
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEMICONDUCTOR DEVICES
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
SYSTEMS THEREOF
VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS
WEAPONS
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Summary:An organic EL device includes at least an anode, a first light-emitting layer, an intermediate layer, a second light-emitting layer, and a cathode in this order. The intermediate layer is adjacent to the first light-emitting layer and the second light-emitting layer. The first light-emitting layer and the second light-emitting layer can trap electrons. A material constituting the intermediate layer is a hydrocarbon that has a HOMO level equal to or lower than the HOMO level of a host of the first light-emitting layer and that has a high S1 level.
Bibliography:Application Number: US202017139848