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:
Jan. 06, 2009
Filed:
Oct. 04, 2005
Sang-hwan Cho, Suwon-si, KR;
Yoon-chang Kim, Suwon-si, KR;
Young-woo Song, Suwon-si, KR;
Ji-hoon Ahn, Suwon-si, KR;
Jong-seok OH, Suwon-si, KR;
Joon-gu Lee, Suwon-si, KR;
So-young Lee, Suwon-si, KR;
Sang-Hwan Cho, Suwon-si, KR;
Yoon-Chang Kim, Suwon-si, KR;
Young-Woo Song, Suwon-si, KR;
Ji-Hoon Ahn, Suwon-si, KR;
Jong-Seok Oh, Suwon-si, KR;
Joon-Gu Lee, Suwon-si, KR;
So-Young Lee, Suwon-si, KR;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
An organic light emitting device (OLED) and a method for manufacturing the same are disclosed. In one embodiment, the OLED includes i) a pixel layer having a first electrode, a second electrode, and a light emitting portion interposed between the first electrode and the second electrode and having at least an emission layer, ii) a transparent member disposed in a direction in which light generated from the pixel layer is transmitted, iii) a diffraction grating disposed between the pixel layer and the transparent member, and iv) a low-refractive layer made of a material having a refractive index less than that of a material forming the transparent member, the low-refractive layer disposed between the diffraction grating and the transparent member. The OLED can prevent image spreading and deterioration in color purity while having enhanced light coupling efficiency.