ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,764, issued on March 17, was assigned to Hewlett-Packard Development Co. LP (Spring, Texas).

"Rollable display devices with movable hinge" was invented by Hsing-Hung Hsieh (Taipei City, Taiwan), Han Chi Tsai (Taipei City, Taiwan) and Yung Yun Chen (Taipei City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some examples, the disclosure describes a device that includes a rollable display device that is extendable in a first direction, a hinge coupled to the rollable display device to move in a second direction in response to the rollable display device being extended in the first direction, and an input device coupled to the rollable disp...