Composition for organic optoelectronic device, organic optoelectronic device, and display device
Inventors
RYU, Dong Wan • SHIN, Chang Ju • Lee, Seungjae • Kim, Hyung Sun • JANG, Yuna • Yu, Eun Sun • Jung, Sung-Hyun
Assignees
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Publication Number
US-12289993-B2
Publication Date
2025-04-29
Expiration Date
Abstract
The present invention relates to a composition for an organic optoelectronic device, the composition comprising: a first host compound represented by Chemical Formula 1 below; and a second host compound represented by Chemical Formula 2 below, to an organic optoelectronic device using the composition and a display device. The details of Chemical Formulas 1 and 2 above are as defined in the specification.
Core Innovation
The invention relates to a composition for an organic optoelectronic device. The composition comprises a first host compound represented by Chemical Formula 1 and a second host compound represented by Chemical Formula 2, with extensive structural variables including heteroatoms X, bond types L1 to L3, and substituent positions X1 to X3, R1 to R3, Ra, Rb, Rc, R4 to R9, and m. "Substituted" includes replacement of at least one hydrogen by deuterium or by specified aryl, heteroaryl, dibenzofuranyl, or dibenzothiophenyl groups.
For Chemical Formula 1, X is O or S, L1 is a single bond, and L2 and L3 are each independently a single bond, a para-phenylene group, or a biphenylene group. X1 to X3 are independently N or CRa, at least two of X1 to X3 are N, and R1 to R3 are independently hydrogen, deuterium, substituted or unsubstituted C1 to C10 alkyl, substituted or unsubstituted C6 to C12 aryl, or combinations thereof.
For Chemical Formula 2, Y1 and Y2 are independently a single bond, substituted or unsubstituted C6 to C30 arylene, substituted or unsubstituted C2 to C30 heteroarylene, or combinations thereof, while Z1 and Z2 are independently substituted or unsubstituted C6 to C30 aryl or substituted or unsubstituted C2 to C30 heterocyclic groups or combinations thereof. R4 to R9 are independently hydrogen, deuterium, substituted or unsubstituted C1 to C20 alkyl, substituted or unsubstituted C6 to C30 aryl, substituted or unsubstituted C2 to C30 heterocyclic, or combinations thereof, and m is an integer of 0 to 2.
The described host composition is used in organic optoelectronic device structures, including organic light emitting diode device structures having an anode and a cathode with at least one organic layer between them. The organic layer includes a light emitting layer including the host composition, and the composition is associated with phosphorescent dopants and red/green/blue dopants.
Claims Coverage
The claim set centers on one independent composition claim for an organic optoelectronic device, with dependent claims narrowing the same dual-host composition and mapping it to device architectures. Across the provided material, there are two inventive feature groupings: the dual-host chemical composition and its use in an organic optoelectronic device structure, including a light emitting layer and display device context.
Composition for an organic optoelectronic device
A composition for an organic optoelectronic device comprising a first host compound represented by Chemical Formula 1 and a second host compound represented by Chemical Formula 2, wherein the variables in Chemical Formula 1 and Chemical Formula 2 are constrained as recited, including that X is O or S, that at least two of X1 to X3 are N, and that m is an integer of 0 to 2, with "substituted" defined to include deuterium replacement and specified aryl, heteroaryl, dibenzofuranyl, or dibenzothiophenyl replacements.
Organic optoelectronic device including the composition
An organic optoelectronic device having an anode and a cathode facing each other with at least one organic layer between them, wherein the at least one organic layer includes a light emitting layer including a host composition, and a display device including the organic optoelectronic device.
Claim coverage is directed to the dual-host composition defined by Chemical Formula 1 and Chemical Formula 2 with the listed structural constraints, and to its incorporation into an organic optoelectronic device having anode/cathode, an organic layer, a light emitting layer, and a display device context.
Stated Advantages
Improved efficiency.
Improved lifespan as indicated by T95 life-span.
Improved charge mobility
Improved stability
Improved luminous efficiency
Improved lifespan
Documented Applications
Organic light-emitting diodes including an anode, cathode, and organic layers with a phosphorescent light emitting layer doped with Ir(ppy)3 using a mixture of a first host and a second host.
Organic optoelectronic device including an organic light emitting diode device structure with a light emitting layer hosted by the composition
Display device including the organic optoelectronic device
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