| 摘要 |
An object of the present invention is to slow the deterioration in the uniformity of the surface brightness when all of the lights emit light under the same conditions in a display device having a backlight where local dimming control is possible. The present invention provides a display device having a display panel with a display region which is a set of a number of pixels, a direct backlight with a number of LED lights, a first control means for controlling the tone of each pixel, and a second control means for controlling the brightness of each LED light, and the display device has an illuminance measuring means for measuring the illuminance in the periphery of said display device, and the above described second control means makes the brightness of all of the LED lights the same in the case where the illuminance as measured by the above described illuminance measuring means is higher than a preset value and determines the brightness of each LED light on the basis of the tone of each pixel in the case where the illuminance is lower than the preset value.
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