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. 06, 1998
Filed:
Dec. 31, 1996
Susan Cushman Anders, Hamilton County, IN (US);
Scott David Fudge, Marion County, IN (US);
James Joseph Hartmann, Marion County, IN (US);
Glen Eric Stanley, Monmouth County, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
The characters of liquid crystal display devices (LCDs) normally exhibit asymmetrical visibility or identifiability dependent upon the direction from which the display is viewed. The asymmetrical identifiability is controllable by the bias applied to the LCD. The contrast of a liquid crystal display device used in a telephone apparatus is automatically controlled by a position sensing switch in accordance with the spatial orientation of the telephone apparatus in order to select the bias that will effectuate the greatest identifiability for the characters of display.