OLED light panel with controlled brightness variation
First Claim
1. A first device comprising:
- a substrate;
a plurality of OLEDs disposed on the substrate;
wherein each OLED further comprises;
a first electrode;
a second electrode; and
an organic electroluminescent (EL) material disposed between the first and the second electrodes;
wherein each of the plurality of OLEDs is commonly addressable;
wherein the plurality of OLEDs comprises a first group and a second group;
wherein each of the OLEDs in the first group of the plurality of OLEDs is patterned and electrically connected such that each OLED in the first group is driven at a first current density;
wherein each of the OLEDs in the second group of the plurality of OLEDs is patterned and electrically connected such that each OLED in the second group is driven at a second current density that is different from the first current density;
wherein at least one of the OLEDs in the first group of the plurality of OLEDs emits light having a first point on the CIE 1976 (L*, u*, v*) color space chromaticity diagram;
wherein at least one of the OLEDs in the second group of the plurality of OLEDS emits light having a second point on the CIE 1976 (L*, u*, v*) color space chromaticity diagram; and
wherein the difference between the first point and the second point has a duv value that is less than approximately 0.10.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments may provide a light source with a controlled brightness variation. A first device is provided that includes a substrate and a plurality of OLEDs disposed on the substrate. Each of the OLEDs includes a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. The plurality of OLEDs comprise a first group and a second group where a first current density is supplied to the first group of the plurality of OLEDs and a second current density that is different from the first current density is supplied to the second group of the plurality of OLEDs. Each of the plurality of OLEDs is commonly addressable and at least one of the OLEDs in the first group of OLEDs has substantially the same device structure as at least one of the OLEDs in the second group of OLEDs.
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Citations
55 Claims
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1. A first device comprising:
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a substrate; a plurality of OLEDs disposed on the substrate;
wherein each OLED further comprises;a first electrode; a second electrode; and an organic electroluminescent (EL) material disposed between the first and the second electrodes; wherein each of the plurality of OLEDs is commonly addressable; wherein the plurality of OLEDs comprises a first group and a second group; wherein each of the OLEDs in the first group of the plurality of OLEDs is patterned and electrically connected such that each OLED in the first group is driven at a first current density; wherein each of the OLEDs in the second group of the plurality of OLEDs is patterned and electrically connected such that each OLED in the second group is driven at a second current density that is different from the first current density; wherein at least one of the OLEDs in the first group of the plurality of OLEDs emits light having a first point on the CIE 1976 (L*, u*, v*) color space chromaticity diagram; wherein at least one of the OLEDs in the second group of the plurality of OLEDS emits light having a second point on the CIE 1976 (L*, u*, v*) color space chromaticity diagram; and wherein the difference between the first point and the second point has a duv value that is less than approximately 0.10. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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Specification