Quantum dot light enhancement substrate and lighting device including same
First Claim
1. A component comprising a substrate comprising a material that is transparent to light within a predetermined range of wavelengths, a layered arrangement including two or more layers disposed over a predetermined region of a surface of the substrate, wherein each of the layers comprises a color conversion material comprising quantum dots capable of emitting light having a predetermined wavelength that is distinct from that emitted by quantum dots included in one or more of the other layers, and conductive material disposed over at least a portion of the layered arrangement, the conductive material being transparent to light within a second predetermined range of wavelengths, and one or more outcoupling features disposed on a surface of the substrate opposite the color conversion material.
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Accused Products
Abstract
A component including a substrate, at least one layer including a color conversion material including quantum dots disposed over the substrate, and a layer including a conductive material (e.g., indium-tin-oxide) disposed over the at least one layer. (Embodiments of such component are also referred to herein as a QD light-enhancement substrate (QD-LES).) In certain preferred embodiments, the substrate is transparent to light, for example, visible light, ultraviolet light, and/or infrared radiation. In certain embodiments, the substrate is flexible. In certain embodiments, the substrate includes an outcoupling element (e.g., a microlens array). A film including a color conversion material including quantum dots and a conductive material is also provided. In certain embodiments, a component includes a film described herein. Lighting devices are also provided. In certain embodiments, a lighting device includes a film described herein. In certain embodiments, a lighting device includes a component described herein.
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Citations
32 Claims
- 1. A component comprising a substrate comprising a material that is transparent to light within a predetermined range of wavelengths, a layered arrangement including two or more layers disposed over a predetermined region of a surface of the substrate, wherein each of the layers comprises a color conversion material comprising quantum dots capable of emitting light having a predetermined wavelength that is distinct from that emitted by quantum dots included in one or more of the other layers, and conductive material disposed over at least a portion of the layered arrangement, the conductive material being transparent to light within a second predetermined range of wavelengths, and one or more outcoupling features disposed on a surface of the substrate opposite the color conversion material.
Specification