Patent ID: 7649574

Claim:
An image display method of splitting a frame into a plurality of sub frames, the method comprising: multiplying a frame frequency of an incoming image signal by an integer; dividing an image that is originally for the frame into pieces for display on the sub frames, wherein an intensity component included in the image is given a priority for display on a first sub frame that is at least one of the sub frames, and a color-difference component included in the image is given a priority for display on a second sub frame that is also one of the sub frames but not the first sub frame; generating an intensity-component priority signal for a YCbCr original signal by converting an intensity component of the YCbCr signal into a RGB signal, replacing the intensity component of the YCbCr signal with 0, and converting a resulting 0CbCr signal into a R′G′B′ signal; or generating the intensity-component priority signal for a RGB original signal by calculating a Y component or intensity from the RGB signal using the following equation: Y=0.299R+0.587G+0.144B, and generating an R′G′B′ signal by subtracting the Y component from each of the components of the RGB signal; producing the intensity-component priority signal, based on a signal derived by subtracting an R′G′B′ signal from an RGB signal, wherein the RGB signal includes both intensity components and color-difference components, and the R′G′B′ signal includes only the color-difference components in which the intensity-components are replaced by 0; and generating a color-difference-component priority signal based on the R′G′B′ signal, which includes only color-difference components with intensity components replaced by 0.