Image processing device, image display system, image processing method and program therefor

An image display system which comprising:

• an image processing device, processing externally input image data;
• and
• a hold-type display device, displaying the image data processed by the image processing device and input from the image processing device;
• wherein:
• the image processing device includes
• a motion vector detecting unit which detects a motion vector of the input image data,
• a response time information storage unit which stores response time information representing a time since a driving voltage is applied to the display device until the display device displays an image with a tone corresponding to the driving voltage, in association with a tone variation value,
• a compensation processing unit which compensates a pixel value in the image data for each pixel, in a frame that is one frame ahead of a frame to be displayed by the display device, based on the input image data, the motion vector and the response time information, and
• an output unit which outputs the image data after compensated by the compensation processing unit to the display device;
• and
• the display device includes:
• an image display unit which displays an image corresponding to the image data input from the image processing device, and
• a display controlling unit which controls driving of the image display unit based on the image data input by the image processing device.

An image processing method for processing externally input image data and generating image data to be output to a hold-type display device, the method comprising the steps of:

• detecting a motion vector of the input image data;
• extracting response time information from a response time information storage unit which stores the response time information representing a time since a driving voltage is applied to the display device until the display device displays an image with a tone corresponding to the driving voltage, in association with a tone variation value;
• compensating a pixel value of the image data for each pixel in a frame that is one frame ahead of a frame to be displayed by the display device, based on the input image data, the motion vector and the response time information;
• and
• outputting the image data after compensated to the display device.

A program for controlling a computer to function as an image processing device which processes externally input image data and outputs it to a display device performing hold-type driving, the program comprising:

• a motion vector detecting function which detects a motion vector of the input image data;
• a response time storage function for storing response time information representing a time since a driving voltage is applied to the display device until the display device displays an image with a tone corresponding to the driving voltage, in association with a tone variation value;
• a compensation processing function for compensating a pixel value in the image data for each pixel, in a frame that is one frame ahead of a frame to be displayed by the display device, based on the input image data, the motion vector and the response time information;
• and
• an outputting function for outputting the image data after compensated by the compensation processing unit to the display device.