Invention Grant
- Patent Title: Light-emitting device with transparent nanoparticle electrode
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Application No.: US16689383Application Date: 2019-11-20
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Publication No.: US11133438B2Publication Date: 2021-09-28
- Inventor: Edward Andrew Boardman , Tim Michael Smeeton
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Main IPC: H01L33/38
- IPC: H01L33/38 ; H01L33/52 ; H01L33/50 ; H01L33/40 ; H01L33/06

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.
Public/Granted literature
- US20210151629A1 LIGHT-EMITTING DEVICE WITH TRANSPARENT NANOPARTICLE ELECTRODE Public/Granted day:2021-05-20
Information query
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