White organic light emitting device
First Claim
1. A white organic light emitting device, comprising:
- a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, an emission position of the first emission layer being within a range of 270 nm to 330 nm with respect to the second electrode;
a second emission part on the first emission part, the second emission part having a second emission layer, an emission position of the second emission layer being within a range of 150 nm to 200 nm with respect to the second electrode; and
a third emission part on the second emission part, the third emission part having a third emission layer, an emission position of the third emission layer being within a range of 20 nm to 80 nm with respect to the second electrode,wherein at least two emission layers of the first, second, and third emission layers respectively emit light having a same color and the at least two emission layers are adjacent to each other.
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Accused Products
Abstract
Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
17 Citations
29 Claims
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1. A white organic light emitting device, comprising:
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a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, an emission position of the first emission layer being within a range of 270 nm to 330 nm with respect to the second electrode; a second emission part on the first emission part, the second emission part having a second emission layer, an emission position of the second emission layer being within a range of 150 nm to 200 nm with respect to the second electrode; and a third emission part on the second emission part, the third emission part having a third emission layer, an emission position of the third emission layer being within a range of 20 nm to 80 nm with respect to the second electrode, wherein at least two emission layers of the first, second, and third emission layers respectively emit light having a same color and the at least two emission layers are adjacent to each other. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11)
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7. A white organic light emitting device, comprising:
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a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, an emission position of the first emission layer being within a range of 270 nm to 330 nm with respect to the second electrode; a second emission part on the first emission part, the second emission part having a second emission layer, an emission position of the second emission layer being within a range of 150 nm to 200 nm with respect to the second electrode; and a third emission part on the second emission part, the third emission part having a third emission layer, an emission position of the third emission layer being within a range of 20 nm to 80 nm with respect to the second electrode, wherein a peak wavelength of the third emission layer is within a range of 540 nm to 650 nm.
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12. A white organic light emitting device, comprising:
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a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, an emission position of the first emission layer being within a range of 100 nm to 150 nm with respect to the first electrode; a second emission part on the first emission part, the second emission part having a second emission layer, an emission position of the second emission layer being within a range of 240 nm to 280 nm with respect to the first electrode; and a third emission part on the second emission part, the third emission part having a third emission layer, an emission position of the third emission layer being within a range of 370 nm to 410 nm with respect to the first electrode and a peak wavelength of the third emission layer being within a range of 540 nm to 650 nm. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A white organic light emitting device, comprising:
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a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, an emission position of the first emission layer being within a range of 100 nm to 150 nm with respect to the first electrode; a second emission part on the first emission part, the second emission part having a second emission layer, an emission position of the second emission layer being within a range of 240 nm to 280 nm with respect to the first electrode; and a third emission part on the second emission part, the third emission part having a third emission layer, an emission position of the third emission layer being within a range of 370 nm to 410 nm with respect to the first electrode, wherein at least two emission layers of the first, second, and third emission layers respectively emit light having a same color and the at least two emission layers are adjacent to each other, and wherein the at least two emission layers comprise the first emission layer and the second emission layer, wherein a peak wavelength of the first emission layer is within a range of 440 nm to 480 nm and a peak wavelength of the second emission layer is within a range of 440 nm to 480 nm. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification