ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,774, issued on March 18, was assigned to Universal Display Corp. (Ewing, N.J.).
"Segmented OVJP print bar" was invented by William E. Quinn (Whitehouse Station, N.J.) and Gregory McGraw (Yardley, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations of the disclosed subject matter provide a print bar for organic vapor jet (OVJP) deposition is provided that includes a plurality of n print head segments, where each of the plurality of print head segments may have an OVJP print head. The print bar may include a plurality of distance sensors, where each of the plurality of distance sensors may be configured to measure a distance between a ...