IMAGE DISPLAY DEVICE, DISPLAY CONTROL DEVICE AND DISPLAY CONTROL METHOD

摘要

In the present invention, the display image quality of a display device is caused to change such that a screen is naturally visible in accordance with environmental changes around the display device. An illumination intensity change detection unit (21) obtains detection values of illumination intensities from illumination intensity detection units (11-14), and detects whether the illumination intensity detected by each illumination intensity detection unit has changed from one illumination intensity range (R1) to another illumination intensity range (R2). When the illumination intensity detected by at least one of the illumination intensity detection units (11-14) has changed from the illumination intensity range (R1) to the illumination intensity range (R2), an image quality control unit (23) performs control such that the timing for causing a change in an image quality correction amount for the display image from a correction amount (A1) corresponding to the illumination intensity range (R1) to a correction amount (A2) corresponding to the illumination intensity range (R2) differs according to the number of illumination intensity detection units for which the detected illumination intensity has changed from the illumination intensity range (R1) to the illumination intensity range (R2).