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:
Feb. 03, 1987
Filed:
Dec. 27, 1983
Johan O Hilbrink, Cincinnati, OH (US);
NCR Corporation, Dayton, OH (US);
Abstract
A liquid crystal display system is comprised of a control system and a display circuit. The control system selectively generates first address signals and first mode control signals during a first mode of operation and second address signals and second mode control signals during a second mode of operation. The display circuit includes a matrix of display means and diode decoding means. Each of the display means comprises a field effect liquid crystal cell having first and second inputs and a diode switching array selectively coupled to the first and second inputs, with the diode decoding means selectively coupled to each diode switching array. During the first mode of operation, the first address signals and first mode control signals are selectively applied to the diode decoding means to selectively cause preselected cells to charge in a first direction through the associated diode switching arrays. During the second mode of operation, the second address signals and second mode control signals are selectively applied to the diode decoding means to selectively cause the preselected cells to charge in a second direction through their associated diode switching arrays.