Invention Publication
- Patent Title: ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
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Application No.: US18062149Application Date: 2022-12-06
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Publication No.: US20230192738A1Publication Date: 2023-06-22
- Inventor: Neil PALMER , Wei-Chun SHIH , Derek Ian WOZNIAK , Zhiqiang JI , Morgan C. MACINNIS , Hsiao-Fan CHEN , Peter WOLOHAN , George FITZGERALD , Elena SHEINA , Noah HORWITZ , Pierre-Luc T. BOUDREAULT , Chun LIN , Rasha HAMZE , Tyler FLEETHAM
- Applicant: UNIVERSAL DISPLAY CORPORATION
- Applicant Address: US NJ Ewing
- Assignee: UNIVERSAL DISPLAY CORPORATION
- Current Assignee: UNIVERSAL DISPLAY CORPORATION
- Current Assignee Address: US NJ Ewing
- Main IPC: C07F15/00
- IPC: C07F15/00 ; H10K85/30 ; H10K85/60 ; H10K85/40 ; H10K50/12
Abstract:
A compound comprising a first ligand LA comprising a structure of Formula I,
is provided. In Formula I, moieties A, B, C, and D are each independently a monocyclic ring or a multicyclic fused ring system; each of X1 to X8 is C or N; each independently represents a single bond or a double bond; each of L1, L2, L3, and L4 is independently a direct bond or a linking group; each R, R′, R″, RA, RB, RC, and RD is a hydrogen or a General Substituent; any two adjacent R, R′, R″, RA, RB, RC, and RD may be joined or fused to form a ring; and LA is coordinated to a transition metal M. Formulations, OLEDs, and consumer products containing the compound are also provided.
is provided. In Formula I, moieties A, B, C, and D are each independently a monocyclic ring or a multicyclic fused ring system; each of X1 to X8 is C or N; each independently represents a single bond or a double bond; each of L1, L2, L3, and L4 is independently a direct bond or a linking group; each R, R′, R″, RA, RB, RC, and RD is a hydrogen or a General Substituent; any two adjacent R, R′, R″, RA, RB, RC, and RD may be joined or fused to form a ring; and LA is coordinated to a transition metal M. Formulations, OLEDs, and consumer products containing the compound are also provided.
Information query
