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US 12,701,913 B2Granted
Light-emitting device and electronic apparatus
AssigneeSamsung Display Co., Ltd.
InventorsSeokgyu Yoon, Hyosup Shin
Life of this patent
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Abstract
Provided are an organic light-emitting device and an electronic apparatus including the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer. The emission layer includes a first host, a first dopant, and a second dopant. The first dopant and the second dopant satisfy Equations 1-1 and 1-2: S1(D1)onset≥S1(D2)onset <Equation 1-1> S1(D1)max≤S1(D2)max. <Equation 1-2>
Claims20
An organic light-emitting device comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- an organic layer between the first electrode and the second electrode and comprising an emission layer,
- wherein the emission layer consists of a first host, the first host being a hole transporting compound not including an electron transporting moiety, a first dopant consisting of a single material, and a second dopant, wherein the first host does not form an exciplex with an other compound, wherein the first dopant does not form an exciplex with an other compound, and
- the first dopant and the second dopant satisfy Equations 1-1 and 1-2:
- S1(D1)onset≥S1(D2)onset Equation 1-1
- S1(D1)max≤S1(D2)max, Equation 1-2
- wherein, in Equations 1-1 and 1-2,
- S1(D1)onset is a lowest excitation singlet energy level of the first dopant at an onset wavelength (λonset),
- S1(D2)onset is a lowest excitation singlet energy level of the second dopant at the onset wavelength,
- S1(D1)max is a lowest excitation singlet energy level of the first dopant at a maximum emission wavelength (λmax), and
- S1(D2)max is a lowest excitation singlet energy level of the second dopant at the maximum emission wavelength, and
- wherein
- the first dopant is selected from Compounds 11-1, 11-3, 11-5, 11-6, and 11-8 to 11-18:
12 more elements
An organic light-emitting device comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- an organic layer between the first electrode and the second electrode and comprising an emission layer,
- wherein the emission layer comprises a first host, a first dopant, and a second dopant, wherein the first dopant does not form an exciplex with an other compound, and
- the first dopant and the second dopant satisfy Equations 1-1 and 1-2:
- S1(D1)onset≥S1(D2)onset Equation 1-1
- S1(D1)max≤S1(D2)max, Equation 1-2
- wherein, in Equations 1-1 and 1-2,
- S1(D1)onset is a lowest excitation singlet energy level of the first dopant at an onset wavelength (λonset),
- S1(D2)onset is a lowest excitation singlet energy level of the second dopant at the onset wavelength,
- S1(D1)max is a lowest excitation singlet energy level of the first dopant at a maximum emission wavelength (λmax), and
- S1(D2)max is a lowest excitation singlet energy level of the second dopant at the maximum emission wavelength, and
- wherein
- the first dopant is selected from Compounds 11-1, 11-3, 11-5, 11-6, and 11-8 to 11-18:
12 more elements
An organic light-emitting device comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- an organic layer between the first electrode and the second electrode and comprising an emission layer,
- wherein the emission layer comprises a first host, a first dopant, and a second dopant, wherein the first dopant does not form an exciplex with an other compound, and
- the first dopant and the second dopant satisfy Equations 1-1 and 1-2:
- S1(D1)onset≥S1(D2)onset Equation 1-1
- S1(D1)max≤S1(D2)max, Equation 1-2
- wherein, in Equations 1-1 and 1-2,
- S1(D1)onset is a lowest excitation singlet energy level of the first dopant at an onset wavelength (λonset),
- S1(D2)onset is a lowest excitation singlet energy level of the second dopant at the onset wavelength,
- S1(D1)max is a lowest excitation singlet energy level of the first dopant at a maximum emission wavelength (λmax), and
- S1(D2)max is a lowest excitation singlet energy level of the second dopant at the maximum emission wavelength, and
- wherein,
- the second dopant is selected from Compounds 12-1, 12-2, 12-4 to 12-12 and 12-14 to 12-34:
12 more elements
Dependencies are inferred from the claim text.