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:
Aug. 30, 2005
Filed:
Oct. 04, 2002
Applicant:
Hidetaka Ohazama, Yamagata-ken, JP;
Inventor:
Hidetaka Ohazama, Yamagata-ken, JP;
Assignee:
Tohoku Pioneer Corporation, Yamagata-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K005/00 ;
U.S. Cl.
CPC ...
Abstract
A test mark is provided, for use in an inspection after a display panel, TAB tapes, and a flexible board have been connected together. Defective panels can be rejected with high accuracy in the simple inspection, thereby mitigating the burden on the microscopic inspection. At a predetermined distance from each of connection areas for connecting a panel substrate, TAB tapes, and a flexible board, there are provided test marks with at least one on each component. The electrical connection is tested between each pair of the test marks to thereby determine whether the interconnection is in a good state.