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US 10,950,803 B2Granted
Compounds and uses in devices
AssigneeUniversal Display Corporation
InventorsChuanjun Xia, Ting-Chih Wang, Chun Lin
Life of this patent
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Abstract
This invention discloses a novel multicomponent system or a single compound that is capable of performing triplet-triplet annihilation up conversion process. (TTA-UC) A solution or solid film that comprises this TTA-UC system or compound is provided. This system or compound can be used in an optical or optoelectronic device.
Claims20
A compound comprising:
- a sensitizer group;
- an acceptor group;
- and
- an emitter group;
- wherein the sensitizer group, the acceptor group, and the emitter group are connected together through covalent bonds by a plurality of spacer groups;
- wherein the acceptor group has a first triplet energy lower than a first triplet energy of the sensitizer group;
- wherein the emitter group has a first singlet energy lower than a first singlet energy of the acceptor group;
- and
- wherein the compound is capable of performing triplet-triplet annihilation upconversion of light incident on the compound resulting in an emission of luminescent radiation that includes a radiation component from the first singlet energy of the emitter.
6 more elements
Dependencies are inferred from the claim text.