ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,481, issued on Oct. 28, was assigned to HKC CORPORATION LIMITED (Shenzhen, China).

"Display device" was invented by Zhouchen Pu (Shenzhen, China) and Lidan Ye (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes a liquid crystal display (LCD) panel, a plurality of magnetic nano particles are provided within the LCD panel, and the display device further includes an alternating current (AC) power supply assembly and a first electromagnet; and the first electromagnet is provided on at least a side of the LCD panel, and connected to the AC power supply assembly. The magnetic nano particles are located within an area ...