Systems and methods for accurately representing high contrast imagery on high dynamic range display systems
First Claim
1. A dual-panel display system comprising:
- a backlight;
a first image-generating panel;
a second contrast-improving panel;
a control module for selecting a codeword (CW) pair for driving said first image-generating panel and said second contrast-improving panel respectively according to input image data; and
further wherein said control module is capable of selecting the CW pair to improve final image rendering presented to a viewer.
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Abstract
A dual-panel display system is provided that comprises control modules and algorithms to select codeword pairs (CWs) to drive a first image-generating panel and a second contrast-improving panel. The first codewords is selected by considering some characteristics of the input image data (e.g., peak luminance) and to improve some image rendering metric (e.g., reduced parallax, reduced contouring, improved level precision). The first codeword may be selected to be the minimum first codeword within a set of codeword pairs that preserves the peak luminance required by the input image data. Also, the first codeword may be selected to minimize the number of Just Noticeable Difference (JND) steps in the final image to be rendered. The second codeword may be selected to similarly improve image quality according to a given quality metric.
104 Citations
23 Claims
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1. A dual-panel display system comprising:
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a backlight; a first image-generating panel; a second contrast-improving panel; a control module for selecting a codeword (CW) pair for driving said first image-generating panel and said second contrast-improving panel respectively according to input image data; and further wherein said control module is capable of selecting the CW pair to improve final image rendering presented to a viewer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. In a dual-panel display system, said dual-panel display system comprising:
- a backlight, a first image-generating panel, a second contrast-improving panel, a method for selecting a codeword (CW) pair for driving said first image-generating panel and said second contrast-improving panel respectively according to input image data;
the steps of said method comprising;inputting image data to be rendered by said dual-panel display system; finding a first CW for driving said first image-generating panel based upon input image data; and finding a second CW for driving said second contrast-improving panel, said first CW and said second CW comprising the CW pair, and wherein the CW pair improves final image rendering according to a desired metric. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- a backlight, a first image-generating panel, a second contrast-improving panel, a method for selecting a codeword (CW) pair for driving said first image-generating panel and said second contrast-improving panel respectively according to input image data;
Specification