ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,200, issued on Feb. 17, was assigned to SAMSUNG DISPLAY Co. LTD. (Gyeonggi-Do, South Korea).
"Maskless exposure device and display device" was invented by Sang Hyun Yun (Yongin-si, South Korea) and Kab Jong Seo (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A maskless exposure device includes: a light source for emitting a beam, a light modulator for modulating the beam according to an exposure pattern, an optical system for transferring the modulated beam onto a substrate in the form of a beam spot array, a position determining unit for generating relative position data between the beam spot array and the substrate, and a co...