HDR DISPLAYS AND CONTROL SYSTEMS THEREFOR
First Claim
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1. A controller connected to control a first array of pixels and a second array of pixels according to image data defining a desired image, the first and second arrays of pixels each comprising a plurality of controllable elements, the controller configured to:
- control the controllable elements of the first array of pixels to project a pattern of light which approximates the desired image onto the second array of pixels; and
, control the controllable elements of the second array of pixels to reduce a difference between the pattern of light and the desired image.
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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.
135 Citations
19 Claims
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1. A controller connected to control a first array of pixels and a second array of pixels according to image data defining a desired image, the first and second arrays of pixels each comprising a plurality of controllable elements, the controller configured to:
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control the controllable elements of the first array of pixels to project a pattern of light which approximates the desired image onto the second array of pixels; and
,control the controllable elements of the second array of pixels to reduce a difference between the pattern of light and the desired image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A set of instructions stored on a media, that, when loaded into an electronic controller, cause the controller to perform the steps of:
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estimating a pattern of light transmitted to a dimming array; and
,controlling the dimming array to modulate the transmitted light at least in part according to the estimated pattern;
wherein the dimming array modulation increases a contrast ratio of the light transmitted to the dimming array to a high dynamic range value. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification