ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,610, issued on March 18, was assigned to Wistron Corp. (New Taipei, Taiwan).

"Double-sided e-paper display panel and operating method of display device" was invented by Yao-Tsung Chang (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a double-sided e-paper display panel including a first substrate, a second substrate, alight isolation layer, a first display medium layer, a second display medium layer, a first electrode layer, and a second electrode layer. The second substrate and the first substrate are disposed opposite to each other. The light isolation layer is disposed between the first substrate and the second su...