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:
Mar. 03, 1998
Filed:
Dec. 22, 1994
Minoru Kanbara, Hachioji, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
A display driving apparatus includes a matrix display device for displaying an image. The matrix display device has switching elements and data written elements connected to the switching elements. The switching elements and the data written elements are arranged in rows and columns to form a matrix. A plurality of scan lines are arranged in a predetermined number of rows, with each row of the plurality of scan lines being connected to respective ones of the switching elements arranged along a corresponding row of the matrix. A plurality of data lines are connected to the switching elements for supplying lines of display data to be displayed on successive rows of the scan lines, and a data line driver circuit is connected to the switching elements via the data lines for supplying the switching elements connected to successive rows of the scan lines with the lines of display data. The data line driver circuit includes a shift register for receiving and shifting lines of display data supplied in serial thereto, and a latch circuit. The latch circuit successively receives lines of display data from the shift register, holds a previous line of received display data, and supplies the held previous line of display data to the switching elements connected to a successive row of the scan lines when the latch circuit does not receive a successive new line of display data from the shift register. A controller inhibits the shift register from receiving lines of display data corresponding to a predetermined number of successive rows of the scan lines.