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. 10, 1996
Filed:
Feb. 09, 1994
Ryoji Oritsuki, Chiba-ken, JP;
Minoru Hiroshima, Chiba-ken, JP;
Masahiro Yanai, Mobara, JP;
Masaaki Matsuda, Mobara, JP;
Toshikazu Horii, Mobara, JP;
Yuichi Hashimoto, Mobara, JP;
Hayao Kozai, Mobara, JP;
Kenkichi Suzuki, Mobara, JP;
Masaru Takabatake, Hitachi, JP;
Takashi Isoda, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Device Engineering Co., Ltd., Chiba-ken, JP;
Abstract
In a liquid crystal display substrate in which the pixel electrode is applied with a voltage through the drain and source of a thin-film transistor (TFT) that conducts by a voltage applied to the TFT gate electrode, this gate electrode and a busline connected to the gate electrode are formed as a multi-layered structure consisting of a gate layer and at least two layers of a gate insulation film and an amorphous silicon film. The multi-layered structure is formed by etching through a single mask.