METHOD AND APPARATUS OF DETECTING IMAGE-STICKING OF DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Apr 16, 2009
app pub date -
Dec 11, 2007
filing date -
Oct 12, 2007
priority date (Note) -
Abandoned
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Abstract
A method of measuring image-sticking of a display device based on a vision model is described. A display device is provided, and a test frame is displayed on the display device. The test frame has a pattern formed by a maximum gray level and a minimum gray level. After burning-in the test frame for a period of time, a gray frame at a medium gray level is displayed on the display device. The test frame, including portions of extreme black and extreme white, leaves image-sticking on the gray pattern at a medium gray level at the same time. Next, an image capture device is used to capture the image-sticking on the display device after burn-in. Finally, a vision model is employed to simulate the human visual perception on the image-sticking and to grade the image-sticking according to the human eye sensitivity for viewing the image-sticking on the display device.
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