The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2020
Filed:
Jul. 23, 2019
Sharp Kabushiki Kaisha, Osaka, JP;
Enrico Angioni, Oxford, GB;
Tim Michael Smeeton, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A light-emitting device includes a combined charge transport and emissive layer (CCTEL). The light-emitting device includes an anode, a cathode, and a CCTEL disposed between the anode and the cathode, the CCTEL comprising a crosslinked charge transport material and quantum dots. The quantum dots are distributed unevenly within the crosslinked charge transport material. The quantum dots may be phase separated from the crosslinked charge transport material whereby the quantum dots form a layer at least partially within the CCTEL at or adjacent to an outer surface of the CCTEL closest to the cathode or the anode. The quantum dots may phase separate from the crosslinked material at least in part during the deposition of a mixture including the crosslinked material and quantum dots in a solvent, as the solvent component of the mixture evaporates. The quantum dots may phase separate from the crosslinked material at least in part in response to an activation stimulus, such as exposure to UV light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile