LIGHT-EMITTING DEVICE USING VOLTAGE SWITCHABLE DIELECTRIC MATERIAL
First Claim
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1. A light-emitting device comprising:
- a component that emits light by carrying current between at least a first terminal and a second terminal;
an organic polymer composition, structured to have a characteristic of being (i) dielectric in absence of a voltage that exceeds a characteristic voltage level of the VSD material, and (ii) conductive with application of the voltage exceeding the characteristic voltage level;
wherein the composition is positioned, relative to the component that emits light, to provide grounding for the component against any transient voltage that exceeds the characteristic voltage level of the composition.
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Abstract
A voltage switchable dielectric material (VSD) material as part of a light-emitting component, including LEDs and OLEDs.
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Citations
20 Claims
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1. A light-emitting device comprising:
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a component that emits light by carrying current between at least a first terminal and a second terminal; an organic polymer composition, structured to have a characteristic of being (i) dielectric in absence of a voltage that exceeds a characteristic voltage level of the VSD material, and (ii) conductive with application of the voltage exceeding the characteristic voltage level; wherein the composition is positioned, relative to the component that emits light, to provide grounding for the component against any transient voltage that exceeds the characteristic voltage level of the composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A light-emitting device comprising:
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a semiconductor component configured to emit light when a current is applied to the component; a composition of organic polymer coupled to the semiconductor component, wherein the composition is structured to have a characteristic of being (i) dielectric in absence of a voltage that exceeds a characteristic voltage level of the VSD material, and (ii) conductive with application of the voltage exceeding the characteristic voltage level; wherein the composition is positioned to direct current away from the semiconductor when in the VSD material is conductive. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A light-emitting device comprising:
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a stack comprising a plurality of layers, the plurality of layers including an organic emitter layer; a voltage switchable material (VSD) formed from an organic polymer composition coupled to the stack, wherein the VSD material is positioned to have a characteristic of being (i) dielectric in absence of a voltage that exceeds a characteristic voltage level of the VSD material, and (ii) conductive with application of the voltage exceeding the characteristic voltage level; wherein the VSD material is positioned to direct current away from the stack when in the VSD material is conductive. - View Dependent Claims (19, 20)
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Specification