Image data output device, image data output method, integrated circuit, and image display device

Abstract

Provided are an image data output device, an image data output method, an image display device, and an integrated circuit that are possible to eliminate stutter by selecting a frame rate from a plurality of frame rate candidates. The image data output device that switches a frame rate of a generated image for each frame and outputs the image to an image display device includes an image generation unit that, on a basis of image generation time required to generate the image, changes the frame rate to one of a plurality of frame rates which are predetermined.

What is claimed is: 
     
         1 . An image display device for displaying image data received from an image data output device, the image display device comprising:
 image display circuitry that displays the image data at one of a plurality of frame rates, and   control circuitry that controls a frame rate at which the image data received from the image data output device is displayed in the image display circuitry, wherein   the control circuitry transmits control data to the image display circuitry for controlling the frame rate, the control data including first numerical information indicating frame rate candidates for the image data from the image data output device.   
     
     
         2 . The image display device according to  claim 1 , wherein
 the control circuitry includes an extended display identification data (EDID) memory, wherein   the EDID memory stores the first numerical information indicating the frame rate candidates,   the control circuitry receives second numerical information indicating a current frame rate of the image data received from the image data output device and controls the image display circuitry to adjust the frame rate to the current frame rate, and   the image display circuitry displays the image data at the current frame rate.   
     
     
         3 . A method for displaying an image data received from an image data output device, the method comprising:
 displaying the image data at one of a plurality of frame rates,   controlling a frame rate at which the image data received from the image data output device is displayed, and transmitting control data for controlling the frame rate, the control data including first numerical information indicating frame rate candidates for the image data from the image data output device.   
     
     
         4 . The method according to  claim 3 , further comprising:
 storing the first numerical information indicating the frame rate candidates in an extended display identification data (EDID) memory,   receiving second numerical information indicating a current frame rate of the image data received from the image data output device and adjusting the frame rate to the current frame rate, and   displaying the image data at the current frame rate.