Organic light emitting devices for illumination
First Claim
1. An organic light emitting device comprising a plurality of light-emitting regions, each of said regions comprising one organic emissive layer selected from a plurality of different organic emissive layers, wherein:
- (a) each of the plurality of emissive layers is adapted to emit a different spectrum of light;
(b) the light-emitting regions are in the form of stripes having an aspect ratio greater than 4 and a width greater than 0.5 mm;
(c) the drive current for each different type of emissive layer is individually adjusted; and
(c) the device emits light having a CRI greater than 80 when power is provided to the plurality of light-emitting regions.
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Abstract
An organic light emitting device is provided. The device has a plurality of regions, each region having an organic emissive layer adapted to emit a different spectrum of light. The regions in combination emit light suitable for illumination purposes. The area of each region may be selected such that the device is more efficient that an otherwise equivalent device having regions of equal size. The regions may have an aspect ratio of at least about four. All parts of any given region may be driven at the same current.
46 Citations
13 Claims
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1. An organic light emitting device comprising a plurality of light-emitting regions, each of said regions comprising one organic emissive layer selected from a plurality of different organic emissive layers, wherein:
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(a) each of the plurality of emissive layers is adapted to emit a different spectrum of light; (b) the light-emitting regions are in the form of stripes having an aspect ratio greater than 4 and a width greater than 0.5 mm; (c) the drive current for each different type of emissive layer is individually adjusted; and (c) the device emits light having a CRI greater than 80 when power is provided to the plurality of light-emitting regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification