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:
Oct. 12, 2004
Filed:
Apr. 25, 2003
Applicant:
Inventors:
Hsien-Chang Lin, Jubei, TW;
Chih-Hao Kung, Kaohsiung, TW;
Chung-Cheng Pai, Taipei, TW;
Shwu-Ju Shieh, Taipei, TW;
Tzu-Chin Tang, Hsinchu, TW;
Assignee:
RiTdisplay Corporation, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/314 ; C09K 1/106 ;
U.S. Cl.
CPC ...
H05B 3/314 ; C09K 1/106 ;
Abstract
The present invention relates to an organic light emitting diode (OLED) device, comprising an anode disposed on a substrate, an organic EL layer disposed on the anode and a cathode disposed on the organic EL layer. The material of the organic EL layer comprises a compound modified from coumarin compounds, as denoted in a following formula (1):