ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,880, issued on March 18.
"Extended display screen" was invented by Liling Yu (Xinyi, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An extended display screen includes a display body, a key device. The key device is connected to the display body, and the key device is electrically connected to the display body. By integrating the display body and the key device together, an integrated design of a display device and a keyboard device is achieved, making the device more compact, easy to carry, and simplifying an assembly and use process of the device. At the same time, due to the integrated design, the extended display screen doesn't need to us...