Patent ID: 8111234

Claim:
A liquid crystal display apparatus including a liquid crystal display as a display unit, the apparatus comprising: a backlight configured to illuminate the display unit from the back of the apparatus in accordance with an output level; and a controller configured to receive display-unit-brightness specifying information specifying a brightness level, the brightness specifying information input from a user input unit, the controller further configured to adjust the output level of the backlight and adjust a Y gain level of display data for the display unit in accordance with the brightness specifying information, and the controller further configured to compare the brightness specifying information input by a user with a plurality of predetermined thresholds, and upon determination that the brightness specifying information specifies the brightness level less than or equal to a first predetermined threshold from the plurality of predetermined thresholds, adjust the Y gain level of the display data for the display unit while the output level of the backlight remains constant, and upon determination that the brightness specifying information specifies the brightness level above the first predetermined threshold and below than or equal to a second predetermined threshold from the plurality of thresholds, adjust both the Y gain level of the display data for the display unit and the output level of the backlight, the second predetermined threshold higher than the first predetermined threshold, and upon determination that the brightness specifying information specifies the brightness level above a third predetermined threshold from the plurality of thresholds, adjust the Y gain level of the display data for the display unit while the output level of the backlight remains constant, the third predetermined threshold higher than the second predetermined threshold.