Luminescent Stacked Waveguide Display
AssigneeHewlett-Packard Development Company, L.P.
InventorsGary Gibson, Richard H. Henze, Patricia A. Beck, Xia Sheng
Life of this patent
Estimating the term…
Abstract
A display includes at least two stacked waveguides (110) and (120). A first waveguide (110) contains first luminophores that fluoresce to produce light of a first color. A second waveguide (120) overlying the first waveguide and contains second luminophores that fluoresce to produce light of a second color. A light collection structure (180) transmits light from a surrounding environment transversely through the first and second waveguides (110, 120) and optical vias (172, 174) provide optical paths out of the display for light respectively from the first optical waveguide (110) and the second optical waveguide (120).
Claims15
A display comprising:
- a first waveguide containing first luminophores that fluoresce to produce light of a first color;
- a second waveguide overlying the first waveguide and containing second luminophores that fluoresce to produce light of a second color;
- a light collection structure positioned to transmit light from a surrounding environment transversely through the first waveguide and the second waveguide;
- a first optical via providing an optical path to a display surface for light from the first optical waveguide;
- and
- a second optical via providing an optical path to the display surface for light from the second optical waveguide.
A display method comprising:
- receiving ambient light into a stack including a first waveguide containing first luminophores and a second waveguide that overlies the first waveguide and contains second luminophores;
- controlling light of a first color that is produced by fluorescence of the first luminophores, extracted from the first waveguide, and output through a first optical via from the first optical waveguide to a display surface;
- and
- controlling light of a second color that is produced by fluorescence of the second luminophores, extracted from the second waveguide, and output through a second optical via from the second optical waveguide to the display surface.
Dependencies are inferred from the claim text.