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. 14, 2004
Filed:
Feb. 18, 2003
Hiroaki Yonekura, Ishikawa, JP;
Mitsuhiro Uno, Ishikawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A display device driving circuit comprising a thin film transistor array in combination with a charge capacitor and its manufacturing method in which the charge capacitor is formed over an address line for addressing the thin film transistor by depositing first an insulating layer over the address line and then a semiconductor layer. The semiconductor layer is etched to form a protective island. The protective island protects the insulating layer integrity during subsequent etching processes. An upper electrode is formed over the semiconductor layer to complete the charge capacitor. The protection of the insulating layer during subsequent manufacturing steps results in substantially uniform charge capacitors for each TFT in the driving circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile