Patent ID: 11957050
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 16:
17. The compound of claim 1, wherein at least two of R, Ar, RA, and RB comprises a group selected from the group consisting of biphenyl, terphenyl, naphthalene, triphenylene, phenanthrene, fluorene, chrysene, carbazole, dibenzothiophene, benzofuran, benzothiophene, aza-dibenzothiophene, aza-dibenzofuran, pyrazole, imidazole, triazole, oxazole, thiazole, oxadiazole, oxatriazole, dioxazole, thiadiazole, pyridine, pyridazine, pyrimidine, pyrazine, triazine, indole, benzimidazole, indazole, benzoxazole, benzisoxazole, benzothiazole, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, naphthyridine, phthalazine, pteridine, xanthene, phenothiazine, phenoxazine, benzofuropyridine, furodipyridine, benzothienopyridine, thienodipyridine, benzo[d]benzo[4,5]imidazo[2,1-b]oxazole, benzo[d]benzo[4,5]imidazo[2,1-b]thiazole, and benzo[d]benzo[4,5]imidazo[3,2-a]imidazole.