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. 05, 1995
Filed:
Oct. 11, 1994
Kiyoshi Hidaka, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
This invention provides a driving apparatus for a liquid-crystal display, comprising a dot-matrix liquid-crystal display with column electrodes and row electrodes, a control circuit for, in enlarging and displaying the display data, producing a display control signal containing a plurality of pulses during the latch period of a latch signal that latches the display data, a column-electrode driving section for latching the display data in a latch circuit in response to the display control signal from the control circuit, and based on the latched display data, causing a driving circuit to drive the column electrodes of the liquid-crystal display, and a row-electrode driving section for simultaneously driving a plurality of adjacent row electrodes of the liquid-crystal display in response to the display control signal from the control circuit. The present invention also provides a driving method for a liquid-crystal display, comprising the steps of selecting a single line of column electrodes according to the display data and at the same time, selecting a plurality of adjacent row electrodes at a time, when the display data is enlarged and displayed on a dot-matrix liquid-crystal display.