Image display apparatus

An image display apparatus for correcting an input image signal and displaying an image on a display unit based on the corrected image signal, comprising:

• at least one illuminance detector for sequentially detecting illuminance values around the image display apparatus;
• an illuminance analyzer for sequentially outputting candidate settings for correction of the image signal based on the sequentially detected illuminance values;
• a setting selector for setting a threshold value and outputting the final image setting based on one of the candidate settings which has been output a number of times greater than the threshold value;
• and
• a setting application unit for changing the image setting used to correct the image signal to be equal to the final setting output from the setting selector, when a predetermined change occurs in the input image signal or when a predetermined time has come;
• wherein the setting selector sets different values for the threshold value used for outputting the final image setting based on the illuminance value higher than the illuminance value corresponding to the image setting being used to correct the image signal, and the threshold value used for outputting the final image setting based on the illuminance value lower than the illuminance value corresponding to the image setting being used to correct the image signal.