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:
Sep. 28, 2021
Filed:
Nov. 20, 2019
Sharp Kabushiki Kaisha, Osaka, JP;
Edward Andrew Boardman, Oxford, GB;
Tim Michael Smeeton, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A light-emitting device incorporates an electrode that includes conductive nanoparticles to increase emission performance. A light-emitting device includes a substrate; a first electrode disposed on the substrate between a viewing side of the light-emitting device and the substrate; a second electrode disposed between the first electrode and the viewing side of the light-emitting device, wherein the second electrode includes a layer of nanoparticles that are electrically conductive; and an emissive layer comprising quantum nanoparticles in electrical contact with the first electrode and the second electrode, wherein the first emissive layer includes a material that emits light when electrically excited. Multiple light-emitting devices may constitute sub-pixels that are combined into a pixel, such as for a display device, wherein each sub-pixel emits light of a different color. Thicknesses of the charge transport layers are the same for the sub-pixels, and/or emissive layer portions of the different sub-pixels have different thicknesses.