Image driving using color-compensated image data that has been color-scheme converted
AssigneeSamsung Display Co., Ltd.
InventorsHeen-Dol Kim, Jai-Hyun Koh, Ik-Soo Lee, Jin-Pil Kim
Life of this patent
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Abstract
An image driving method includes receiving basic image data including a first set of primary colors. The basic image data is transformed into output image data including a second set of primary colors. Luminance values of the second set of primary colors of the output image data is reduced to compensate the luminance values of the second set of primary colors of the output image data when a luminance value of the first set of primary color of the basic image data is saturated. Image distortion is thereby minimized or prevented.
Claims31
An image driving method comprising:
- receiving first image data represented in accordance with a first color scheme including a first plurality of primary colors;
- transforming the first image data into a second image data represented in accordance with a second color scheme including a second plurality of primary colors, the second plurality of primary colors being different than the first plurality of primary colors by at least one additional color;
- and
- reducing luminance values of one or more of the second plurality of primary colors of the second image data to compensate for saturation in the second image data by multiplying at least one common reduction ratio, which varies depending on a luminance value of the additional color, to the luminance values of each of the second plurality of primary colors of the second image data.
An image driving apparatus comprising:
- a color mapping part receiving a first image data represented in accordance with a first color scheme including a first plurality of primary colors and changing the first image data into second image data represented in accordance with a second color scheme including a second plurality of primary colors different than the first plurality of colors by at least one additional color;
- and
- a saturated color compensating part decreasing luminance values of the second plurality of primary colors of the second image data and compensating for the luminance values of the second plurality of primary colors of the second image data when the first image data of the first plurality of primary colors include a saturated color by multiplying at least one common reduction ratio, which varies depending on a luminance value of the additional color, to the luminance values of each of the second plurality of primary colors of the second image data.
A method of displaying an image, comprising:
- receiving a first image represented as a set of pixels, each pixel expressed as luminance value of each of a first plurality of colors;
- transforming the first image into a second image represented as a set of pixels, each pixel expressed as a luminance value of each of a second plurality of colors, the second plurality of colors being different than the first plurality of colors by at least one additional color;
- compensating for saturation in the second image by multiplying a compensation ratio to the luminance values of one or more of the colors of the second plurality of colors of the second image or by selectively driving sections of a backlight device by multiplying at least one common reduction ratio, which varies depending on a luminance value of the additional color, to the luminance values of each of the second plurality of primary colors of the second image data;
- and
- displaying the compensated image on a display device including the backlight device.
Dependencies are inferred from the claim text.