ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,446,335, issued on Oct. 14, was assigned to Hoon Kim (La Habra, Calif.).
"Touch screen panel for sensing touch using TFT photodetectors integrated thereon" was invented by Hoon Kim (La Habra, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A touch screen panel using a thin film transistor (TFT) photodetector includes a touch panel including at least one unit pattern for sensing light reflected by a touch by using a TFT photodetector including an active layer formed of amorphous silicon or polycrystalline silicon on an amorphous transparent material, and a controller configured to scan the at least one unit pattern and read touch coordinates as a r...