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:
Nov. 19, 2013
Filed:
May. 21, 2008
Sung-hun Lee, Yongin-si, KR;
Sang-yeol Kim, Yongin-si, KR;
Mu-gyeom Kim, Yongin-si, KR;
Jung-bae Song, Yongin-si, KR;
Sung-hun Lee, Yongin-si, KR;
Sang-yeol Kim, Yongin-si, KR;
Mu-gyeom Kim, Yongin-si, KR;
Jung-bae Song, Yongin-si, KR;
Samsung Display Co., Ltd., Giheung-Gu, Yongin, Gyeonggi-Do, KR;
Abstract
A top-emitting or bottom-emitting OLED has a wide color gamut and reduces a variation in color with a viewing angle. The OLED includes a reflective electrode and a transmissive or semi-transmissive electrode disposed opposite each other; at least two organic emission layers (EMLs) interposed between the reflective electrode and the transmissive or semi-transmissive electrode; and an optical path control layer disposed on an outer surface of the transmissive or semi-transmissive electrode. A resonator is formed between the reflective electrode and the optical path control layer so a resonance mode of light extracted from the optical path control layer is a multi-resonance mode having at least two modes in a visible light region. A distance between the organic EMLs satisfies the condition of constructive interference between light beams emitted by the respective organic EMLs. A color display apparatus using the OLED are taught.