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:
Apr. 24, 2001
Filed:
Jun. 21, 1999
Ellis D. Harris, Claremont, CA (US);
Other;
Abstract
In accordance with the present invention an array of strings of hollow beads on a string wherein the beads exhibit both electromagnetic and optical anisotropy are utilized in an array to achieve a display device for the display of electronic image material in ambient illumination. Display beads strung on a string are achieved by means of selective processing glass fiber pulled from a preform that incorporates an outer tube of parallel strands of colored glass, an inner tube of relative soluble glass and a central core of inert glass. Electric anisotropy is achieved by surface treatment of the beads with materials that exhibit a combination of triboelectric and electrophoretic effects whereby the benefits of each supplement the other. Magnetic anisotropy is achieved by the inclusion of magnetic material in the glass fiber from which display beads are formed. The fibers are processed while supported on a precision loom frame that incorporates “V” groves for fiber registration. Electronic drivers are provided as islands of silicon-on-fused-silica-on-tungsten foil on the reverse side of a display substrate with connectivity channels through the substrate to drive electrodes near the display beads.