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:
Jul. 25, 1995
Filed:
Jun. 07, 1994
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345100 ; 345 98 ;
Abstract
A display control device for a display unit, using a ferroelectric liquid crystal or the like, capable of partially changing a display state of picture elements is provided with an entire updating means for updating a display of the entire picture surface of the display unit. A partial updating means is provided for updating only a portion in which display contents have changed during entire updating processing. A restriction means restricts the start of operation of the partial updating means in accordance with whether the number of lines to be updated exceeds a predetermined number, where the predetermined number is less than the total number of line in the display unit.