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:
Jan. 30, 2007
Filed:
Jul. 15, 2004
Atsushi Kidokoro, Aichi-ken, JP;
Ryouichi Tomida, Aichi-ken, JP;
Kazuyoshi Takeuchi, Aichi-ken, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya, JP;
Abstract
Formed on a glass substrate is an EL element including an anode, an organic light emitting layer, and a cathode. A first protective film is formed on a surface of the EL element to cover the EL element through a dry process. A second protective film is then formed on a surface of the first protective film to cover the first protective film by using polysilazane through a wet process. Even if an uncovered portion is left in the first protective film owing to the existence of a foreign matter thereon, the second protective film covers the uncovered portion to avoid intrusion of oxygen or other gases, moisture, etc. into the EL element from the outside.