Image processing apparatus for processing moving image to be displayed on liquid crystal display device, image processing method and computer program product

An image processing apparatus for a liquid crystal display device, comprising:

• a predicted attainment gradation storing unit that stores predicted attainment gradation which is a predicted value of gradation which respective pixels of the liquid crystal display attain after one frame period after the respective pixels are driven to display a first frame;
• an enhanced gradation calculating unit that calculates first difference gradation, which is a difference between the predicted attainment gradation and input gradation, which is gradation of a second frame which is displayed after the first frame, that multiplies the first difference gradation by the enhancement coefficient, and that calculates enhanced gradation, which is a sum of the first difference gradation multiplied by an enhancement coefficient and the predicted attainment gradation;
• and
• a predicted attainment gradation calculating unit that calculates second difference gradation which is a difference between the enhanced gradation and the predicted attainment gradation, multiplies the second difference gradation by a correction coefficient, and updates the value of the predicted attainment gradation stored in the storage unit based on a sum of the second difference gradation multiplied by the correction coefficient and the predicted attainment gradation.

A computer program product having a computer readable medium including programmed instructions for execution of an image process of a moving image to be displayed on a liquid crystal display device, wherein the instructions, when executed by a computer, cause the computer to perform:

• calculating first difference gradation, which is a difference between predicted attainment gradation and input gradation, the predicted attainment gradation being a predicted value of gradation which respective pixels of the liquid crystal display attain after one frame period after the respective pixels are driven to display a first frame, and the predicted attainment gradation being stored in a storage unit which stores the predicted attainment gradation, and the input gradation being gradation of a second frame which is displayed after the first frame;
• multiplying the first difference gradation by an enhancement coefficient;
• calculating enhanced gradation which is a sum of the first difference gradation multiplied by the enhancement coefficient and the predicted attainment gradation;
• calculating second difference gradation which is a difference between the enhanced gradation and the predicted attainment gradation;
• multiplying the second difference gradation by a correction coefficient;
• and
• updating the value of the predicted attainment gradation stored in the storage unit based on a sum of the second difference gradation multiplied by the correction coefficient and the predicted attainment gradation.