SIGNAL CONVERSION METHOD FOR DISPLAY IMAGE
First Claim
1. A signal conversion method for a display image adapted for a display comprising a plurality of pixels, each of the pixels having red, blue, green and brightness sub-pixels, the method comprising:
- receiving an image data of the (N−
1)th frame through the display, wherein the image data comprises a red pixel data, a blue pixel data and a green pixel data corresponding to each pixel;
obtaining a luminance data according to the image data of the (N−
1)th frame;
determining a signal tuning gain of the Nth frame according to the image data and the luminance data of the (N−
1)th frame and through a backlight duty adjusting table, wherein the backlight duty adjusting table comprises a plurality of backlight luminances and a plurality of gains respectively corresponded by a plurality of luminance distribution ranges;
adjusting an image data of the Nth frame according to the signal tuning gain of the Nth frame so as to generate an output image data of the Nth frame, wherein the output image data comprises a red output sub-pixel data, a green output sub-pixel data, a blue sub-output pixel data and a luminance output sub-pixel data; and
displaying the pixel by the display according to the output image data of the pixel.
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Abstract
A signal conversion method for a display image is provided. The signal conversion method includes: receiving an image data of the (N−1)th frame; converting the (N−1)th image data to obtain a luminance data; determining a signal tuning gain of an image data of Nth frame according to the image data of the (N−1)th frame, the luminance data and a backlight duty adjusting table; adjusting an image data of Nth frame according to the signal tuning gain of Nth frame so as to generate an output image data of Nth frame; and displaying pixels according to the output image data of Nth frame.
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Citations
13 Claims
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1. A signal conversion method for a display image adapted for a display comprising a plurality of pixels, each of the pixels having red, blue, green and brightness sub-pixels, the method comprising:
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receiving an image data of the (N−
1)th frame through the display, wherein the image data comprises a red pixel data, a blue pixel data and a green pixel data corresponding to each pixel;obtaining a luminance data according to the image data of the (N−
1)th frame;determining a signal tuning gain of the Nth frame according to the image data and the luminance data of the (N−
1)th frame and through a backlight duty adjusting table, wherein the backlight duty adjusting table comprises a plurality of backlight luminances and a plurality of gains respectively corresponded by a plurality of luminance distribution ranges;adjusting an image data of the Nth frame according to the signal tuning gain of the Nth frame so as to generate an output image data of the Nth frame, wherein the output image data comprises a red output sub-pixel data, a green output sub-pixel data, a blue sub-output pixel data and a luminance output sub-pixel data; and displaying the pixel by the display according to the output image data of the pixel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification