LIGHT SOURCE DEVICE AND DISPLAY USING THE SAME
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United States of America Patent
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Nov 26, 2020
app pub date -
Sep 12, 2019
filing date -
May 21, 2019
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Abstract
A light source device for a display includes light emitting diode packages. Each light emitting diode package includes a substrate, a first light emitting diode chip emitting a first beam of light, a second light emitting diode chip emitting a second beam of light, and a package layer including a wavelength converting material. Frequency bands of the first and second light beams both have a full width at half maximum of 30 nm to 40 nm. The wavelength converting material is excited by the first and second beams to generate a third beam of light, the frequency band of the third beam of light having a full width at half maximum of 10 nm to 50 nm. A display using the light source device is also disclosed.
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