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.:

US 9640782 B1

PDF
Full Text
Expired
Date of Patent:
May. 02, 2017

Filed:

Apr. 26, 2016
Applicant:

Samsung Display Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Inventors:

Man-Seob Choi, Yongin-si, KR;

Katsumasa Yoshii, Yongin-si, KR;

Assignee:

Samsung Display Co., Ltd., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/033 (2006.01); H01L 27/32 (2006.01); G02F 1/1335 (2006.01); H01L 51/56 (2006.01); H01L 51/52 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5271 (2013.01); H01L 27/3246 (2013.01); H01L 51/0026 (2013.01); H01L 51/5012 (2013.01); H01L 51/5218 (2013.01); H01L 51/5221 (2013.01); H01L 51/5225 (2013.01); H01L 51/5275 (2013.01); H01L 51/5284 (2013.01); H01L 51/56 (2013.01);
Abstract

An organic light-emitting display apparatus includes a substrate, an optical layer formed over the substrate and a light emitting pixel formed over the optical layer. The optical layer includes a first refractive index layer portion having a first refractive index, a second refractive index layer portion having a second refractive index greater than the first refractive index. The second portion is disposed next to the first portion and contacts the first portion. The light emitting pixel includes a pixel electrode overlapping the first portion and comprising a first reflective layer, a pixel-defining film overlapping the second portion, an intermediate layer formed over the pixel electrode and comprising an organic light emission layer, and an opposite electrode formed over and overlapping the intermediate layer and the pixel-defining film and comprising a second reflective layer.


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