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:
Jul. 20, 2021
Filed:
Sep. 06, 2017
Joled Inc., Tokyo, JP;
Tomohiko Oda, Tokyo, JP;
Shinichiro Ishino, Tokyo, JP;
Koyo Sakamoto, Tokyo, JP;
Yasuhiro Yamauchi, Tokyo, JP;
JOLED INC., Tokyo, JP;
Abstract
According to one embodiment, a solution for organic EL contains a mixed solvent of two or more kinds of organic solvents which contain at least a first organic solvent and a second organic solvent, and an organic EL contributing material dissolved into the mixed solvent. The coordinates (HSP coordinates) specified by Hansen solubility parameters of the first organic solvent are Hd in a range of 17.5 to 19.5 (J/cm), Hp in a range of 3.5 to 5.5 (J/cm)and Hh in a range of 3.5 to 5.5 (J/cm). The HSP coordinates of the second organic solvent are Hd in a range of 17.5 to 19.5 (J/cm), Hp in a range of 0 to 2.0 (J/cm), and Hh in a range of 0.5 to 2.5 (J/cm).