Image display apparatus using phosphor particles
AssigneeCanon Kabushiki Kaisha
InventorsKiyokatsu Ikemoto, Akinari Takagi
Life of this patent
Estimating the term…
Abstract
The image display apparatus includes a light transmissive substrate, and plural pixels arranged on a further inner side than the substrate. Each pixel includes a light emission layer in which phosphor particles are dispersed in a background medium having a same refractive index as that of the phosphor particle, and an excitation source exciting the phosphor particles to cause them to emit light. Each pixel further includes a refractive index distribution structure disposed between the substrate and the light emission layer and having a periodic refractive index distribution in a direction along an inner surface of the substrate.
Claims4
An image display apparatus comprising:
- a light transmissive substrate;
- and
- plural pixels arranged on a further inner side than the substrate,
- wherein each pixel comprising:
- a light emission layer in which phosphor particles are dispersed in a background medium having a same refractive index as that of the phosphor particle;
- an excitation source exciting the phosphor particles to cause them to emit light;
- and
- a refractive index distribution structure disposed between the substrate and the light emission layer, and having a periodic refractive index distribution in a direction along an inner surface of the substrate.
Dependencies are inferred from the claim text.