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. 14, 2004
Filed:
Mar. 13, 2002
Yasushi Kubota, Ibaraki, JP;
Tatsumi Satoh, Oita, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A drive circuit, for example a gate line drive circuit for a TFT liquid-crystal display, having a circuit size smaller than in the past. A TFT drive circuit has the shifting direction of drive data sequentially shifted through shift registers (SR -R ) and is further inverted by a control signal (SEL_SFT), and the data are shifted in the opposite direction, from the first shift register (SR ) to the second shift register (SR ). At this time, the upper group of switching circuits (SW -SW ) or the lower group of switching circuits (SW -SW ) is enabled and the other group is disabled by control signals (SEL_UP, SEL_LO). Once the drive data are shifted to the bits of the shift registers, a voltage selection signal generated by a decoder (DEn) is inputted to an output circuit via an effective switching circuit, and a drive signal for a TFT gate is outputted. The number of circuits is reduced because the shift registers (SR -SR ) and decoders (DE -DE ) are shared by two outputs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile