Image display device, and method for adjusting light source thereof

摘要

A user terminal, an image display device, and a method for adjusting a light source thereof, are provided. A user terminal is connected with an image display device and comprises a first interface unit which receives a color coordinate of an ambient light; a second interface unit which receives a color coordinate of an internal light source of the image display device; and a control unit which calculates a luminance value from the received color coordinate of the ambient light and the received color coordinate of the internal light source, and transmits the calculated luminance value to the image display device via the second interface unit. The image display device adjusts the internal light source of the image display device based on the calculated luminance value. Thus, the light source of a backlight unit can be adjusted based on the ambient light.