Display device using vertical cavity laser arrays
First Claim
1. A display apparatus for producing colored pixelated light, comprising:
- a) a backlight unit for providing a pump-beam light;
b) a microcavity light-producing array responsive to pump-beam light and having pixels wherein each pixel includes;
i) a transparent substrate;
ii) a bottom dielectric stack reflective to light over a predetermined range of wavelengths;
iii) an active region responsive to pump-beam light for producing display light; and
iv) a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths;
c) a light shutter for permitting selected display light from the microcavity light-producing array to pass therethrough;
d) a polarizing layer disposed between the microcavity light-producing array and the light shutter; and
e) a beam expander disposed over the light shutter for increasing the angular cone of view of the display light.
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Accused Products
Abstract
A display apparatus for producing colored pixelated light includes a backlight unit for providing a pump-beam light. The apparatus also includes a microcavity light-producing array responsive to pump-beam light and having pixels wherein each pixel including a transparent substrate, a bottom dielectric stack reflective to light over a predetermined range of wavelengths, an active region responsive to pump-beam light for producing display light, and a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths. The apparatus further includes a light shutter for permitting selected display light from the microcavity light-producing array to pass therethrough, a polarizing layer disposed between the microcavity light-producing array and the light shutter, and a beam expander disposed over the light shutter for increasing the angular cone of view of the display light.
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Citations
32 Claims
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1. A display apparatus for producing colored pixelated light, comprising:
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a) a backlight unit for providing a pump-beam light;
b) a microcavity light-producing array responsive to pump-beam light and having pixels wherein each pixel includes;
i) a transparent substrate;
ii) a bottom dielectric stack reflective to light over a predetermined range of wavelengths;
iii) an active region responsive to pump-beam light for producing display light; and
iv) a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths;
c) a light shutter for permitting selected display light from the microcavity light-producing array to pass therethrough;
d) a polarizing layer disposed between the microcavity light-producing array and the light shutter; and
e) a beam expander disposed over the light shutter for increasing the angular cone of view of the display light. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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5. The display apparatus of claim I wherein the light shutter includes at least one layer of polarizing film.
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18. A display apparatus for producing colored pixelated light, comprising:
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a) a backlight unit for providing a pump-beam light;
b) a microcavity light-producing array responsive to pump-beam light and having pixels wherein each pixel includes;
i) a transparent substrate;
ii) a bottom dielectric stack reflective to light over a predetermined range of wavelengths;
iii) an active region responsive to pump-beam light for producing blue light; and
iv) a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths;
c) a light shutter for permitting selected colored light from the microcavity light-producing array to pass therethrough;
d) a polarizing layer disposed between the microcavity light-producing array and the light shutter; and
e) a color conversion layer including different portions where selected different portions in response to blue light produce a different colored light and being adapted to increase the angular cone of view of the selected colored light. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification