Illumination device and display device
AssigneeSaturn Licensing LLC
InventorHirohisa Ishino
Life of this patent
Estimating the term…
Abstract
Provided is an illumination device that makes it possible to enhance utilization efficiency of light, and a display device that includes the illumination device. The illumination device includes: a light source that is configured to generate light of a first wavelength; a luminescent body that is configured to wavelength-convert the light of the first wavelength to light of a second wavelength, the second wavelength being different from the first wavelength; and a wavelength selective filter that is provided on a light-incident side of the luminescent body, the wavelength selective filter being configured to transmit the light of the first wavelength and to reflect the light of the second wavelength.
Claims20
A display device comprising:
- a light source that is configured to generate light of a blue light having a first wavelength range;
- a quantum dot material in a cured resin configured to convert some of the blue light to green light having a second wavelength range and to red light having a third wavelength range, the quantum dot material in the cured resin being positioned to receive the blue light;
- a wavelength selective filter that is provided outside the cured resin, the wavelength selective filter being configured to transmit the light of the first wavelength range and to reflect the light of the second and third wavelength ranges, the wavelength selective filter being positioned to receive the green and red light;
- and
- a display panel that receives from light transmitted through the wavelength selective filter.
A display device comprising:
- a plurality of light sources that is configured to generate light of a blue light having a first wavelength range;
- a quantum dot material in a cured resin configured to convert some of the blue light to green light having a second wavelength range and to red light having a third wavelength range, the quantum dot material in the cured resin being positioned to receive the blue light;
- a wavelength selective filter that is provided outside the cured resin, the wavelength selective filter being configured to transmit the light of the first wavelength range and to reflect the light of the second and third wavelength ranges, the wavelength selective filter being positioned to receive the green and red light;
- and
- a display panel that receives from light transmitted through the wavelength selective filter.
Dependencies are inferred from the claim text.