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. 30, 2003
Filed:
Aug. 30, 2000
Michiko Takei, Kawasaki, JP;
Yasuyoshi Mishima, Kawasaki, JP;
Mitsuru Chida, Kawasaki, JP;
Kohta Yoshikawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A liquid crystal display substrate including gate and drain bus lines that are electrically insulated from each other at cross areas, pixel electrodes between the cross areas, and first thin film transistors connecting corresponding drain bus lines and pixel electrodes. Each first thin film transistor includes a channel region where current flows in a first direction, and first and second impurity doped regions of, respectively, first and second impurity concentrations. The first and second doped regions sandwich the channel region. The second impurity concentration is higher than the first. Also, a second thin film transistor is formed in the peripheral circuit area, and includes a channel region where current flows in a second direction that is perpendicular to the first direction. Third impurity doped regions, disposed on both sides of the channel region, have a third impurity concentration.