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:
Dec. 01, 2015
Filed:
Nov. 07, 2014
Lg Display Co., Ltd., Seoul, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
Disclosed is an organic light emitting display (OLED) apparatus that includes a substrate; an organic light emitting element on the substrate, the organic light emitting element including a first electrode, an organic light emitting layer and a second electrode; a viscoelastic layer on the organic light emitting element, wherein an elastic portion of the viscoelastic layer is about 30% or more, the elastic portion being defined by <Equation 1>: Elastic portion (E) (%)=(σ/σ)×100, wherein σis an initial stress generated when a strain of about 50% is applied to the viscoelastic layer and σ is a final stress measured after the strain is continuously applied thereto for about 180 seconds, with the initial stress σand the final stress σ being measured at about 80° C. through a relaxation modulus test.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile