Condensed cyclic compound, light emitting device including same, and electronic device including light emitting device

By using new fused ring compounds as the emission layer material in organic light emitting devices, the transmission and recombination process of holes and electrons is optimized, and the problem of insufficient performance of light emitting devices in the prior art is solved, and a higher viewing angle width, contrast, response time and driving voltage are achieved, and the luminous efficiency and life are significantly improved.

CN119684328APending Publication Date: 2025-03-25SAMSUNG DISPLAY CO LTD
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Patent Information

Application Number
CN202411335713.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-25
Filing Date
2024-09-24
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The existing organic light emitting devices have shortcomings in viewing angle width, contrast, response time and driving voltage, and it is difficult to meet the high-performance light emitting needs.

Method used

The novel fused ring compound represented by formula 1 is used as the emitting layer material. Through its application in light-emitting devices, the transmission and recombination process of holes and electrons are optimized, thereby improving the light generation efficiency.

Benefits of technology

The viewing angle width, contrast, response time and driving voltage of the light emitting device are improved, and the luminous efficiency and life are significantly improved.

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Abstract

Provided are a fused ring compound represented by Formula 1, a light-emitting device including the same, and an electronic apparatus including the light-emitting device. In Formula 1, ring Y1 to ring Y3 are each independently a C5-C60 carbocyclic group or a C3-C60 heterocyclic group, W2 is a single bond, O, S, N [(Ar2) d2-(T2) e2], C (T2a) (T2b), or Si (T2a) (T2b), W3 is a single bond, O, S, N [(Ar3) d3-(T3) e3], C (T3a) (T3b), or Si (T3a) (T3b), when n2 is 0, *-(W2) n2-* 'is absent, when n3 is 0, *-(W3) n3-*' is absent, the sum of n2 and n3 is 1 or more, and Formula 1 includes at least one group represented by Formula 2. In Formula 2, R1 and R2 are each independently hydrogen or deuterium, and R3 to R5 are each independently C1-C60 alkyl which is unsubstituted or substituted by deuterium,-F, cyano, or any combination thereof. The remaining detailed descriptions of Formula 1 are provided in the specification. Formula 1 # imgabs 0 # and formula 2 # imgabs 1 #
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