According to one embodiment, an embodiment of the present invention minimizes visibility of noise effect in a display image caused by an image data error and maintains the quality of the display image with inexpensive circuit. The embodiment includes an image data reception module which receives image data to which an error check code is added per predetermined processing unit, an error detection module which detects an error of the received image data, and an image data output module which outputs specific image data to replace the image data in which the error is detected.