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:
Apr. 10, 2007
Filed:
Jun. 18, 2002
Jun-yeob Lee, Gyeonggi-do, KR;
Young-sook Choi, Gyeonggi-do, KR;
Michael Redecker, Berlin, DE;
Kerstin Nolte, Berlin, DE;
Jun-Yeob Lee, Gyeonggi-do, KR;
Young-Sook Choi, Gyeonggi-do, KR;
Michael Redecker, Berlin, DE;
Kerstin Nolte, Berlin, DE;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
The present invention discloses a hole transport layer of an organic EL display, comprising: a material including one of a PEDOT which is a mixture of a poly (3,4)-ethylenedioxythiophene and a polystyrenesulfonate, a PANI which is a mixture of a polyaniline and a polystyrenesulfonate, and an aromatic amine derivative; and an organic compound derivative having the general structure, RRMRR, where 'M' denotes one metal selected from a group consisting of Ti, Pt and one metal among elements belonging to groups 3A and 4A of periods 3 to 5.