BRIGHTNESS CORRECTION DEVICE AND BRIGHTNESS CORRECTION METHOD

摘要

A brightness correction device includes a display unit, an illumination sensor for measuring an illuminance value that is ambient environment information, a memory for storing a current brightness setting value and calculation information for calculating a delay time, an illumination controller, and a brightness controller. The illumination controller determines a target brightness setting value from the illuminance value measured by the illumination sensor, determines a brightness correction start time in response to the target brightness setting value and the current brightness setting value and the calculation information that are stored in the memory, calculates an amount of brightness setting change per specified time from the current brightness setting value stored in the memory and the target brightness setting value at the brightness correction start time, and outputs an output brightness setting value in response to the amount of brightness setting change that is calculated. The brightness controller adjusts brightness of the display unit in response to the output brightness setting value output from the illumination controller.