High dynamic range display devices
First Claim
Patent Images
1. A front projection display comprising:
- a light source;
first spatial light modulator located to modulate light from the light source;
a display screen comprising a second spatial light modulator; and
,an optical system configured to image light modulated by the first spatial light modulator onto a first face of the display screen;
wherein the display screen is configured to reflect light to a viewer, each of the first and second spatial light modulators comprises a two-dimensional array of controllable elements capable of modulating light, the first light modulator has a first resolution and the second spatial light modulator has a second resolution different from the first resolution.
4 Assignments
0 Petitions
Accused Products
Abstract
A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
-
Citations
42 Claims
-
1. A front projection display comprising:
-
a light source; first spatial light modulator located to modulate light from the light source; a display screen comprising a second spatial light modulator; and
,an optical system configured to image light modulated by the first spatial light modulator onto a first face of the display screen; wherein the display screen is configured to reflect light to a viewer, each of the first and second spatial light modulators comprises a two-dimensional array of controllable elements capable of modulating light, the first light modulator has a first resolution and the second spatial light modulator has a second resolution different from the first resolution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A front-projection display comprising:
-
first spatial modulation means for providing light spatially modulated at a first spatial resolution; a display screen comprising a second spatial modulation means for further spatially modulating the light at a second resolution different from the first resolution; and
,means for controlling the first and second spatial modulation means to display an image defined by image data; wherein the display comprises a front projection-type display and the display screen is configured to reflect light to a viewer. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
-
Specification