TEST PATTERNS FOR MOTION-INDUCED CHROMATIC SHIFT
First Claim
1. One or more computer-readable media storing computer-executable instructions for causing a processor, when programmed thereby, to perform test pattern evaluation comprising:
- determining a test pattern that is based at least in part on a base pattern of pixels, each of the pixels in the base pattern including multiple sub-pixel sample values; and
successively rendering the test pattern for display on a display device, including offsetting the base pattern by a number of pixels between successive rendering operations for the test pattern to facilitate evaluation of whether chromatic shift is induced among at least some sub-pixel display elements of the display device.
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Accused Products
Abstract
Display of a test pattern on a liquid crystal display (“LCD”) device or other display device can expose a problem with control logic that causes perceptible shifting in color values away from correct color values. For example, a test pattern evaluation tool determines a test pattern that is based at least in part on a base pattern of pixels. The test pattern evaluation tool successively renders the test pattern for display on a display device. In doing so, the test pattern evaluation tool offsets the base pattern by a number of pixels (e.g., shifting by one pixel horizontally) between successive rendering operations at the native refresh rate of the display device, which facilitates evaluation of whether chromatic shift is induced among at least some sub-pixel display elements of the display device.
26 Citations
20 Claims
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1. One or more computer-readable media storing computer-executable instructions for causing a processor, when programmed thereby, to perform test pattern evaluation comprising:
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determining a test pattern that is based at least in part on a base pattern of pixels, each of the pixels in the base pattern including multiple sub-pixel sample values; and successively rendering the test pattern for display on a display device, including offsetting the base pattern by a number of pixels between successive rendering operations for the test pattern to facilitate evaluation of whether chromatic shift is induced among at least some sub-pixel display elements of the display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 19)
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15. A method comprising:
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determining a test pattern that is based at least in part on a base pattern of pixels, each of the pixels in the base pattern including multiple sub-pixel sample values; and successively rendering the test pattern for display on a display device, including offsetting the base pattern by a number of pixels between successive rendering operations for the test pattern, the base pattern and offsetting being configured to trigger chromatic shift in response to imbalances introduced by control logic in overdrive adjustments among sub-pixel display elements of the display device. - View Dependent Claims (16, 17, 18)
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20. A computer system comprising:
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a liquid crystal display (“
LCD”
) device; andan evaluation tool comprising at least one processer configured to execute logic to; determine a test pattern that is based at least in part on a base pattern of pixels, each of the pixels in the base pattern including multiple sub-pixel sample values; and successively render the test pattern for display on the LCD device, including offsetting the base pattern by a number of pixels between successive rendering operations for the test pattern, the base pattern and offsetting being configured to trigger chromatic shift in response to imbalances in transition times among sub-pixel display elements of the LCD device.
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Specification