Patent ID: 8717341
Filing Date: 2014-05-06
Classification: G09G,H04N

Abstract:
1. 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 for the candidate setting corresponding to the detected illuminance value higher than the detected illuminance value corresponding to the current image setting, and the threshold value for the candidate setting corresponding to the detected illuminance value lower than the detected illuminance value corresponding to the current image, wherein the setting selector sets the threshold value based on time information, and wherein: when the time information indicates a time around sunset, the setting selector sets the threshold value for the candidate setting corresponding to the detected illuminance value lower than the detected illuminance value corresponding to the current image setting, to be lower than the threshold value for the candidate setting corresponding to the detected illuminance value higher than the detected illuminance value corresponding to the current image setting.