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:
Oct. 29, 1991
Filed:
Feb. 14, 1991
Applicant:
Inventor:
Larry A Nelson, Albuquerque, NM (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340784 ; 340793 ; 340811 ;
Abstract
A saturating column driver for an LCD substrate. Digital data is entered into a register in a serial fashion to produce a series of single-column addresses. The single-column addresses are latched and apparatus is provided for translating video binary words into grey scale codes. Also provided are switches responsive to the translated video binary words which switch a voltage input corresponding to the video binary word through to the LCD substrate to generate the desired grey scale.