Organic light-emitting diode luminaires
AssigneeE. I. Du Pont de Nemours and Company
InventorsKerwin D. Dobbs, Norman Herron, Vsevolod Rostovtsev
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Abstract
There is provided an organic light-emitting diode luminaire. The luminaire includes a patterned first electrode, a second electrode, and a light-emitting layer therebetween. The light-emitting layer includes a first plurality of pixels having an emission color that is blue; a second plurality of pixels having an emission color that is green, the second plurality of pixels being laterally spaced from the first plurality of pixels; and a third plurality of pixels having an emission color that is red-orange, the third plurality of pixels being laterally spaced from the first and second pluralities of pixels. The additive mixing of all the emitted colors results in an overall emission of white light.
Claims19
An organic light-emitting diode luminaire comprising a patterned first electrode, a second electrode, and a light-emitting layer therebetween, the light-emitting layer comprising:
- a first plurality of pixels comprising a first electroluminescent material having an emission color that is blue;
- a second plurality of pixels comprising a second electroluminescent material having an emission color that is green, the second plurality of pixels being laterally spaced from the first plurality of pixels;
- and
- a third plurality of pixels comprising a third electroluminescent material having an emission color that is red-orange, the third plurality of pixels being laterally spaced from the first and second pluralities of pixels;
- wherein the additive mixing of the three emitted colors results in an overall emission of white light.
A process for making an OLED luminaire, comprising:
- providing a substrate having a first patterned electrode thereon;
- depositing a first liquid composition in a first pixellated pattern to form a first deposited composition, the first liquid composition comprising a first electroluminescent material in a first liquid medium, said first electroluminescent material having a first emission color;
- depositing a second liquid composition in a second pixellated pattern which is laterally spaced from the first pixellated pattern to form a second deposited composition, the second liquid composition comprising a second electroluminescent material in a second liquid medium, said second electroluminescent material having a second emission color;
- depositing a third liquid composition in a third pixellated pattern which is laterally spaced from the first and second pixellated patterns to form a third deposited composition, the third liquid composition comprising a third electroluminescent material in a third liquid medium, said third electroluminescent material having a third emission color;
- drying the deposited compositions to form pluralites of pixels;
- and
- forming a second electrode over all the pixels;
- wherein one of the emission colors is blue, one of the emission colors is green, and one of the emission colors is red-orange.
Dependencies are inferred from the claim text.