System and method of reducing color shift in a display
First Claim
Patent Images
1. A display system for displaying an image, the display system comprising:
- a reflective display comprising a plurality of interferometric modulators configured to modulate light incident on a surface thereof; and
a converging optical element positioned with respect to a surface of at least one of the plurality of interferometric modulators such that a focal length of the optical element is greater than a distance between the optical element and the surface,wherein the optical element has a lens aperture greater than a total aperture of two of the plurality of interferometric modulators andwherein the optical element is configured to reduce color shift of the image between different viewing locations andwherein the color shift results from reflection of light from at least some of the interferometric modulators associated with the image at the different viewing locations.
2 Assignments
0 Petitions
Accused Products
Abstract
A system and method of reducing color shift in a display includes an interferometric modulator display configured to reflect light from at least one light source and through at least one converging optical element in an optical path from the light source to a viewer via the display. In one embodiment, the converging optical element comprises a diffractive optical element.
-
Citations
22 Claims
-
1. A display system for displaying an image, the display system comprising:
-
a reflective display comprising a plurality of interferometric modulators configured to modulate light incident on a surface thereof; and a converging optical element positioned with respect to a surface of at least one of the plurality of interferometric modulators such that a focal length of the optical element is greater than a distance between the optical element and the surface, wherein the optical element has a lens aperture greater than a total aperture of two of the plurality of interferometric modulators and wherein the optical element is configured to reduce color shift of the image between different viewing locations and wherein the color shift results from reflection of light from at least some of the interferometric modulators associated with the image at the different viewing locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 21)
-
-
16. A display system for displaying an image, the display system comprising:
-
a reflective display comprising a plurality of light modulators, each of said modulators comprising a reflective surface configured to be positioned at a distance from a partially reflective surface; and a converging optical element having positive power positioned with respect to the partially reflective surface of at least one of the plurality of light modulators such that a focal length of the optical element is greater than a distance between the optical element and the partially reflective surface, wherein the optical element has a lens aperture greater than a total aperture of two of the plurality of light modulators and wherein the optical element is configured to reduce color shift of the image between different viewing locations and wherein the color shift results from reflection of light from at least some of the light modulators associated with the image at the different viewing locations. - View Dependent Claims (17, 18, 19, 20, 22)
-
Specification