Image display device
AssigneeSharp Kabushiki Kaisha
InventorsMasumi Maegawa, Hitoshi Aoki, Toshiya Ishio, Katsuji Iguchi
Life of this patent
Estimating the term…
Abstract
An image display device includes: a plurality of LED elements that are mounted on a drive circuit substrate and emit light source light; a wavelength conversion layer that is stacked on a side of the LED elements opposite to the drive circuit substrate, converts the light source light emitted by the LED elements into long wavelength light, and emits the long wavelength light to a side opposite to the drive circuit substrate; and a first functional layer that is disposed on a light emitting surface side of the long wavelength light of the wavelength conversion layer, reflects the light source light, and transmits the long wavelength light.
Claims11
An image display device comprising:
- a plurality of LED elements that are mounted on a drive circuit substrate and emit light source light;
- a wavelength conversion layer that is stacked on a side of the LED elements opposite to the drive circuit substrate, converts the light source light emitted by the LED elements into long wavelength light, and emits the long wavelength light to a side opposite to the drive circuit substrate;
- and
- a first functional layer that is disposed on a light emitting surface side of the long wavelength light of the wavelength conversion layer, reflects the light source light, and transmits the long wavelength light,
- wherein the drive circuit substrate supplies a prescribed current to the LED elements to control emission of light by the LED elements, and
- the first functional layer has a higher reflectance in a wavelength region of the light source light than in a wavelength region of the long wavelength light.
Dependencies are inferred from the claim text.