| 摘要 |
A display device uses a plurality of monitors to constitute a single image, achieves high contrast and, suppresses variations in luminance among the monitors. Each monitor is provided with an image analysis portion that finds a first feature quantity in a video display region corresponding to a region of an LED backlight, and a gradation control portion that determines a first luminance level for the corresponding LEDs region and calculates a luminance stretch quantity for stretching the first luminance levels uniformly. A microcomputer selects a minimum luminance stretch quantity from among the monitors and outputs the selected minimum luminance stretch quantity to the monitors. The gradation control portion for each monitor stretches the first luminance levels uniformly to determine a second luminance level on the basis of the minimum luminance stretch quantity acquired from the microcomputer. |
