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. 02, 2020
Filed:
Mar. 23, 2017
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Takeshi Hirase, Sakai, JP;
Tohru Sonoda, Sakai, JP;
Takashi Ochi, Sakai, JP;
Hisao Ochi, Sakai, JP;
Tohru Senoo, Sakai, JP;
Akihiro Matsui, Sakai, JP;
Jumpei Takahashi, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
An organic EL display device includes an organic EL element and a sealing film. The organic EL element is formed over a display region of a base substrate. The sealing film covers the organic EL element. The sealing film includes a first barrier layer, a buffer layer, and a second barrier layer. The first barrier layer includes a first inorganic film and is disposed on the surface of the organic EL element. The buffer layer includes an organic film and is disposed on the surface of the first barrier layer. The second barrier layer includes a second inorganic film and is disposed on the surface of the buffer layer. The first barrier layer includes micropores in the surface, the surface being in contact with the buffer layer.