Wavelength conversion film and light emitting device package including the same
First Claim
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1. A light emitting device package comprising:
- a package body;
a light emitting device coupled to at least a first portion of the package body; and
a wavelength conversion film disposed on the light emitting device so that light emitted by the light emitting device passes through the wavelength conversion film,wherein the wavelength conversion film comprises a wavelength conversion material that changes a wavelength of the light emitted by the light emitting device,the wavelength conversion film includes a first layer disposed to be adjacent to the light emitting device and having a first refractive index, and a second layer attached to the first layer and having a second refractive index less than the first refractive index of the first layer and greater than a third refractive index of air, andthe package body includes a reflective wall attached to a side surface of the light emitting device.
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Abstract
A wavelength conversion film is provided and may include a first layer including a wavelength conversion material and an encapsulant encapsulating the wavelength conversion material, and a second layer attached to the first layer and having a refractive index less than a refractive index of the encapsulant and greater than a refractive index of air.
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Citations
9 Claims
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1. A light emitting device package comprising:
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a package body; a light emitting device coupled to at least a first portion of the package body; and a wavelength conversion film disposed on the light emitting device so that light emitted by the light emitting device passes through the wavelength conversion film, wherein the wavelength conversion film comprises a wavelength conversion material that changes a wavelength of the light emitted by the light emitting device, the wavelength conversion film includes a first layer disposed to be adjacent to the light emitting device and having a first refractive index, and a second layer attached to the first layer and having a second refractive index less than the first refractive index of the first layer and greater than a third refractive index of air, and the package body includes a reflective wall attached to a side surface of the light emitting device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification