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:
Dec. 21, 2010
Filed:
Jul. 26, 2004
Yoshifumi Kato, Kariya, JP;
Norihito Takeuchi, Kariya, JP;
Hiroyasu Kawauchi, Kariya, JP;
Haruyuki Ishikawa, Kariya, JP;
Hiroyuki Miura, Kariya, JP;
Yoshifumi Kato, Kariya, JP;
Norihito Takeuchi, Kariya, JP;
Hiroyasu Kawauchi, Kariya, JP;
Haruyuki Ishikawa, Kariya, JP;
Hiroyuki Miura, Kariya, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi-ken, JP;
Abstract
An organic EL element that is an electroluminescence element has at least an organic layer held between a pair of electrodes. At least an electrode made of material having a higher volume resistivity, of the pair of electrodes, is formed in a flat form. The organic layer is provided with a plurality of non-light emitting portions. The non-light emitting portions are provided so that a larger number of non-light emitting portions exist per unit area at a position physically closer to the position of a terminal portion at which the electrode made of material having the higher volume resistivity is connected to an external connection terminal. As a result, the level of current passing per unit area is substantially uniform at each position on the element.