IMAGE PROCESSING METHOD AND IMAGE DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Oct 2, 2014
app pub date -
Apr 2, 2014
filing date -
Apr 2, 2013
priority date (Note) -
Abandoned
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Abstract
The invention discloses an image display device and an image processing method thereof. The image display device includes a processing module and a screen electrically connected to the processing module. The processing module receives a series of digital signals and displays an image frame on the screen based on a first signal—gray level relation. An image block is selected from the image frame. The series of digital signals and a subset of digital signals corresponding to the image block correspond to a first and a second gray level ranges, respectively. The first gray level range covers the second gray level range. The processing module generates a second signal—gray level relation based on the second gray level range and re-displays the image block on the screen based on the subset of digital signals and the second signal—gray level relation, so as to enhance the gray level resolution of the image block.
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