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:
Apr. 12, 1988
Filed:
Jan. 06, 1986
Yoshitaka Fukuma, Yamatokoriyama, JP;
Tosaku Nakanishi, Nishinomiya, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A drive circuit is used to drive a data matrix liquid crystal display panel that can be applied to a variety of uses wherein said drive circuit either generates the backplate signal using any optional sequence or optionally provides any desired duty factor. The drive circuit chip itself contains RAM, and in responding to the data contents in said RAM, both the backplate and segment signals are generated, where the drive circuit provides any desired sequence that can optionally be determined in accordance with the RAM data contents. As an alternative embodiment of the present invention, the drive circuit chip comprises a built-in counter that determines the duty factor of the liquid crystal enable signals, where the duty factor can optionally be set by varying the operational conditions of said counter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile