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:
Nov. 05, 2013
Filed:
Jan. 25, 2011
Chikao Yamasaki, Osaka, JP;
Shinya Tanaka, Osaka, JP;
Tetsuo Kikuchi, Osaka, JP;
Junya Shimada, Osaka, JP;
Chikao Yamasaki, Osaka, JP;
Shinya Tanaka, Osaka, JP;
Tetsuo Kikuchi, Osaka, JP;
Junya Shimada, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The present invention provides a circuit board with a reduced circuit area, and a display device comprising the circuit board and a narrower picture frame. The circuit board of the present invention comprises: a bottom gate thin film transistor comprising a first semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode; and a top gate thin film transistor comprising a second semiconductor layer, a second gate electrode, a second source electrode, and a second drain electrode, wherein the first semiconductor layer and the second semiconductor layer are formed from the same material, and the first drain electrode or the first source electrode and the second gate electrode are connected without interposing any other thin film transistor therebetween, and have the same electric potential.