US Patent Issued to E Ink on Feb. 24 for "Switchable light-collimating layer with improved transmittance" (California, Massachusetts Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,836, issued on Feb. 24, was assigned to E Ink Corp. (Billerica, Mass.).

"Switchable light-collimating layer with improved transmittance" was invented by Xiaolong Zheng (Fremont, Calif.), HongMei Zang (Fremont, Calif.), Yih-Ming Kang (Fremont, Calif.) and Stephen J. Telfer (Arlington, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-collimating film including elongated chambers of bistable electrophoretic fluids. The light-collimating films are suitable to control the amount and/or direction of light incident to a transmissive substrate. Such films may be integrated into devices, such as LCD displays, to provide a zone of privacy for a us...