Patent number: 11706980
Abstract: A compound of Formula I wherein at least one of R1 or R2 includes a polycyclic group selected from the group consisting of Formula A, Formula B, and Formula C: wherein X1, X2, X3, and X4 are independently CRA or N; X5, X6, X7, and X8 are independently CRB or N; X9, X10, X11, and X12 are independently CRC or N; X13, X14, X15, and X16 are independently CRD or N; X17, X18, X19, and X20 are independently CRE or N; X21, X22, X23, and X24 are independently CRF or N; X25, X26, X27, and X28 are independently CRG or N; X29, X30, X31, and X32 are independently CRH or N; Y is selected from the group consisting of O, S, NR, and CRR?; the maximum number of N atoms that can connect to each other within each ring is two; with the proviso that R1 does not connect to ring B, and R2 does not connect to ring A, and wherein at least one of RC and RD of Formula A is a direct bond or an organic linker, one of RE and RF of Formula B is a direct bond or an organic linker, or one of RG, RH, and RN of Formula C is a d
Type:
Grant
Filed:
November 14, 2019
Date of Patent:
July 18, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Peter Wolohan, Nicholas J. Thompson, Tyler Fleetham
Publication number: 20230159578
Abstract: A compound of Formula I, is provided. In Formula I, one of Z1, Z2, and Z3 is N and the remainder are C; each of L1 and L2 is independently selected from a direct bond and a linking group; at least one of R1, R2, RA, RB, RC, RD, and RE comprises a group R* having a structure selected form the group consisting of Formula II, -Q(R3)(R4)a(R5)b, Formula III, and Formula IV, Each R, R?, R?, R1, R2, R3, R4, R5, RA, RB, RC, RD, RE, RF, RG, and RH is independently hydrogen or a General Substituent, with the proviso that group R* is not adamantyl. Formulations, OLEDs, and consumer products containing the compound are also provided.
Type:
Application
Filed:
January 4, 2023
Publication date:
May 25, 2023
Applicant:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Hsiao-Fan CHEN, Geza SZIGETHY, Rasha HAMZE, Nicholas J. THOMPSON, Hojae CHOI, Weiye GUAN, Raghupathi NEELARAPU, Charles J. STANTON, Douglas WILLIAMS, Ving Jick LEE