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:
Jun. 02, 2015
Filed:
Feb. 02, 2012
Seung-wook Chang, Yongin, KR;
Young-hee Lee, Yongin, KR;
Mu-hyun Kim, Yongin, KR;
Hyo-yeon Kim, Yongin, KR;
Sang-woo Pyo, Yongin, KR;
Seung-mook Lee, Yongin, KR;
Byeong-wook Yoo, Yongin, KR;
Seung-Wook Chang, Yongin, KR;
Young-Hee Lee, Yongin, KR;
Mu-Hyun Kim, Yongin, KR;
Hyo-Yeon Kim, Yongin, KR;
Sang-Woo Pyo, Yongin, KR;
Seung-Mook Lee, Yongin, KR;
Byeong-Wook Yoo, Yongin, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic light-emitting diode (OLED) having first, second and third sub-pixels of different colors includes: a substrate; first and second electrodes; an organic emission layer (OEL) between the electrodes including a first OEL in the first sub-pixel, a second OEL in the second sub-pixel, and a common third OEL in the first, second and third sub-pixels; a hole transport layer (HTL) between the first electrode and OEL; a hole injection layer (HIL) between the first electrode and HTL; an intermediate layer between the HTL and HIL; a first optical thickness auxiliary layer (OTAL) between the first OEL and third OEL in the first sub-pixel and including a first hole transporting compound and a cyano group-containing compound; and a second OTAL including a second hole transporting compound between the third OEL and HTL in the first sub-pixel, and between the second OEL and HTL in the second sub-pixel.