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. 11, 2007
Filed:
May. 27, 2005
Nobuhiko Fukuoka, Ebina, JP;
Nobuyuki Ushifusa, Yokohama, JP;
Issei Takemoto, Hiratsuka, JP;
Yoshinori Ishii, Chiba, JP;
Nobuhiko Fukuoka, Ebina, JP;
Nobuyuki Ushifusa, Yokohama, JP;
Issei Takemoto, Hiratsuka, JP;
Yoshinori Ishii, Chiba, JP;
Hitachi Displays, Ltd., Mobara-shi, JP;
Abstract
Inside surround desiccant pattern A surrounding an organic EL element by bonding an element substrate to a sealing board, outside surround desiccant pattern C surrounding the inside surround desiccant pattern A, and internal desiccant pattern (having a thinner film thickness than the inside surround desiccant pattern A) surrounded by the inside surround desiccant pattern A are formed on the sealing board by one time screen printing. For this purpose, a screen mask is utilized on which opening patterns for the inside and outside surround desiccant patterns A, C and an opening pattern having a narrower opening width than the opening patterns for A and C for forming an internal desiccant pattern are formed. With this configuration, it has been achieved to manufacture a highly reliable organic EL display apparatus in more simplified process.