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. 22, 2010
Filed:
Dec. 26, 2003
Tatsuya Igarashi, Minami-Ashigara, JP;
Saisuke Watanabe, Minami-Ashigara, JP;
Toshihiro Ise, Minami-Ashigara, JP;
Hisashi Okada, Minami-Ashigara, JP;
Kazumi Nii, Minami-Ashigara, JP;
Tatsuya Igarashi, Minami-Ashigara, JP;
Saisuke Watanabe, Minami-Ashigara, JP;
Toshihiro Ise, Minami-Ashigara, JP;
Hisashi Okada, Minami-Ashigara, JP;
Kazumi Nii, Minami-Ashigara, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
An organic electroluminescent device comprising: a pair of electrodes; and at least one organic layer between the pair of electrodes, the at least one organic layer between the pair of electrodes, the at least one organic layer including a luminescent layer, wherein the luminescent layer contains at least one electron injection/transport compound, at least one hole injection/transport compound, and at least one green or blue phosphorescent compound; and the electron injection/transport compound and the hole injection/transport compound each has a minimum triplet exciton energy value which is equal to or more than that of the green or blue phosphorescent compound.