Publication number: 20190119101
Abstract: An amorphous thin film stack can include a first layer including a combination metals or metalloids including: 5 at % to in 90 at % of a metalloid; 5 at % to 90 at % of a first metal and a second metal independently selected from titanium, vanadium, chromium, iron, cobalt, nickel, niobium, molybdenum, ruthenium, rhodium, palladium, tantalum, tungsten, osmium, iridium, or platinum. The three elements may account for at least 70 at % of the amorphous thin film stack. The stack can further include a second layer formed on a surface of the first layer. The second layer can be an oxide layer, a nitride layer, or a combination thereof. The second layer can have an average thickness of 10 angstroms to 200 microns and a thickness variance no greater than 15% of the average thickness of the second layer.
Type:
Application
Filed:
June 24, 2016
Publication date:
April 25, 2019
Applicants:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., The State of Oregon State Board of Higher Education on behalf of Oregon State University
Inventors:
James Elmer Abbott, Jr., John M McGlone, Kristopher Olsen, Roberto A Pugliese, Greg Scott Long, John Wager, Douglas A Keszler, T. Stafford Johnson, William F Stickel
Publication number: 20190119566
Abstract: A compound having a Pt tetradentate structure of Formula 1, is provided. In the structure of Formula 1, rings C and D each independently represent 5- or 6-membered carbocyclic or heterocyclic ring; L1, L2, and L3 are each independently a direct bond, BR, NR, PR, O, S, Se, C?O, S?O, SO2, SiRR?, GeRR?, alkyl, cycloalkyl, or a combination thereof; the sum of n1 and n2 is 1 or 2; X is selected from NRE, O, S, and Se; X3 and X4 each independently carbon or nitrogen; and one of Q1, Q3, and Q4 is oxygen, and the remaining two of Q1, Q3, and Q4 each represents a direct bond. Formulations and devices, such as an OLEDs, that include the compound of Formula 1 are also described.
Type:
Application
Filed:
October 18, 2018
Publication date:
April 25, 2019
Applicant:
Universal Display Corporation
Inventors:
BIN MA, Mingjuan SU, Alan DEANGELIS, Edward BARRON, Chuanjun XIA