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:
Mar. 30, 2021
Filed:
Apr. 08, 2019
Interdigital Ce Patent Holdings, Paris, FR;
Artem Boriskin, Cesson-Sevigne, FR;
Oksana Shramkova, Cesson-Sevigne, FR;
Valter Drazic, Cesson-Sevigne, FR;
InterDigital CE Patent Holdings, Paris, FR;
Abstract
It is proposed an organic light emitting diode (OLED) cell, comprising a cathode, an anode, the anode being positioned on a substrate, and wherein the organic light emitting diode cell further comprises between said cathode and said anode, an emissive layer and an conductive layer, that generate light when a difference of potential occurs between said cathode and said anode. The organic light emitting diode (OLED) cell further comprises a diffusion layer comprising a set of right circular hollow cylinders, wherein each right circular hollow cylinder being defined by at least a parameter R, named an external radius, and a parameter r, named an internal radius, wherein said parameter R is comprised in a first range with λ being a wavelength of an electromagnetic wave generated by said organic light emitting diode (OLED) cell, and wherein said parameter r is defined such that in a is comprised in a second range [0.6; 0.8], and wherein each right circular hollow cylinder has a height that is comprised in a third range wherein n corresponds to a refractive index of said diffusion layer.