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:
Sep. 13, 2005
Filed:
Jan. 27, 2004
Takayoshi Yoshida, Yonezawa, JP;
Shozaburo Sakaguchi, Yonezawa, JP;
Takayoshi Yoshida, Yonezawa, JP;
Shozaburo Sakaguchi, Yonezawa, JP;
Tohoku Pioneer Corporation, Yamagata, JP;
Abstract
In an active-drive type pixel structure comprising at least TFT for control, TFT for drive, and a capacitor for charge retention, it can be easily inspected whether the functions of TFTs and the capacitor are normal or not. In an active-drive type pixel structure comprising TFT (Tr) for control, TFT (Tr) for drive, and a capacitor for charge retention, one terminal of a dummy load W for inspection is connected to a drain of the TFT for drive, and the other terminal of the load W is connected to a linefor inspection. By measuring an electric current Id obtained on the linefor inspection while changing a voltage supplied to a data line, it can be inspected whether the functions of TFTs and the capacitor are normal or not. The dummy load W is configured to be melted and cut by burning off the load W with a laser beam or by passing a predetermined electric current in the load W after completion of inspection.