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:
May. 23, 2006
Filed:
Nov. 25, 2003
Yean-kuen Fang, Tainan, TW;
William Lee, Taichung, TW;
Jyh-jier Ho, Kaohsiung, TW;
Shyh-fann Ting, Kaohsiung, TW;
Shih-fang Chen, Tainan, TW;
Hsin-che Chiang, Kaohsiung, TW;
Yean-Kuen Fang, Tainan, TW;
William Lee, Taichung, TW;
Jyh-Jier Ho, Kaohsiung, TW;
Shyh-Fann Ting, Kaohsiung, TW;
Shih-Fang Chen, Tainan, TW;
Hsin-Che Chiang, Kaohsiung, TW;
Abstract
A method for manufacturing organic light-emitting diodes (OLEDs) is disclosed, by adding nitrogen (N) into the material of a hole transport layer (HTL) and evaporating the nitrogen and the material of the hole transport layer while growing the hole transport layer, so as to dope nitrogen molecules into the hole transport layer. In the hole transport layer, the nitrogen molecules are impurities of higher energy level, and are used to catch holes while the holes transports and trap the holes in the hole transport layer, thereby obtaining an object of improving the luminance efficiency of the organic light-emitting diodes with lower cost.