Light-emitting device, light-emitting apparatus, electronic device, and lighting device

TW202633218APending Publication Date: 2026-08-01SEMICON ENERGY LAB CO LTD
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Patent Information

Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
SEMICON ENERGY LAB CO LTD
Filing Date
2019-09-02
Publication Date
2026-08-01

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Abstract

To provide a light-emitting device not only including a light-emitting layer in which energy is efficiently transferred from a host material to a guest material but also having high reliability. The light-emitting device not only includes a light-emitting layer in which the T1 levels and the S1 levels of a host material and a guest material fall within certain ranges so that energy can be efficiently transferred from the host material to the guest material and but also has improved reliability.
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