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:
Dec. 30, 2014
Filed:
Sep. 26, 2005
Applicants:
Shawn P. Williams, Pittsburgh, PA (US);
Darin W. Laird, Pittsburgh, PA (US);
Troy D. Hammond, Pittsburgh, PA (US);
Inventors:
Shawn P. Williams, Pittsburgh, PA (US);
Darin W. Laird, Pittsburgh, PA (US);
Troy D. Hammond, Pittsburgh, PA (US);
Assignee:
Solvay USA, Inc., Cranbury, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); H01B 1/12 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01B 1/127 (2013.01); H01L 51/5088 (2013.01); H01L 51/0036 (2013.01); H01L 51/5048 (2013.01); H01L 51/5052 (2013.01); Y10S 428/917 (2013.01);
Abstract
Regioregular polythiophenes having heteroatoms in the substituents can be used in hole injection layer and hole transport layers for electroluminescent devices. Copolymers and organic oxidants can be used. Homopolymers can be used. Metallic impurities can be removed. The heteroatom can be oxygen and can be substituted at the 3-position. Advantages include versatility, synthetic control, and good thermal stability. Different device designs can be used.