Organic light emitting display device and lighting apparatus for vehicles using the same
AssigneeLG Display Co., Ltd.
InventorEunJung Park
Life of this patent
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Abstract
An organic light emitting display device and a light apparatus for vehicles using the same are provided. The organic light emitting display device includes a first layer on a first electrode, a second layer on the first layer, a second electrode on the second layer, and an N-type charge generation layer between the first layer and the second layer. The first layer includes a first emission layer and a first electron transport layer, and the second layer includes a second emission layer and a second electron transport layer. A low unoccupied molecular orbitals (LUMO) level of the first electron transport layer is higher than a LUMO level of a host included in the N-type charge generation layer.
Claims22
An organic light emitting display device, comprising:
- a first electrode and a second electrode;
- a first emission layer and a second emission layer between the first electrode and the second electrode;
- a charge generation layer on the first emission layer;
- and
- an electron transport layer between the first emission layer and the charge generation layer,
- wherein a low unoccupied molecular orbitals (LUMO) level of the electron transport layer is higher than a LUMO level of a host in the charge generation layer.
An organic light emitting display device, comprising:
- a first layer on a first electrode, the first layer including a first emission layer and a first electron transport layer;
- a second layer on the first layer;
- a second electrode on the second layer;
- and
- an N-type charge generation layer between the first layer and the second layer, wherein a low unoccupied molecular orbitals (LUMO) level of the first electron transport layer is higher than a LUMO level of a host in the N-type charge generation layer.
A lighting apparatus for vehicles, comprising:
- an organic light emitting device including an emission layer, an electron transport layer, and a charge generation layer between an anode and a cathode,
- wherein a low unoccupied molecular orbitals (LUMO) level of the electron transport layer is higher than a LUMO level of a host in the charge generation layer.
Dependencies are inferred from the claim text.