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:
Nov. 02, 1976
Filed:
Jan. 21, 1975
Michael E Wilmer, Portola Valley, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An electro-optic display having a plurality of sets of overlapping grid address layers, wherein each set of address layers comprises electrode means for allowing transmission of light through only one half of the total area of the display, and successive sets of layers have increased numbers of individual electrodes which comprise each layer, the number of individual electrodes increasing in the progression 2.sup.n where n is the number of sets of overlapping grid layers, and the alternate individual electrodes on any one layer, which comprise one half of the total area of the display, are commonly connected for attachment to a source of electrical potential, and the other alternate electrodes, which comprise the other half of the total area of the display, are commonly connected for attachment to a source of electrical potential, so that any one of (2.sup.n).sup.2 bits of the total display area may be selectively addressed by selectively operating one of the commonly connected alternate electrodes of each pair of address grids.