DRIVER DEVICE, BACKLIGHT UNIT, AND IMAGE DISPLAY APPARATUS

摘要

A backlight unit according to the present invention includes a plurality of LED drivers (5a) to (5i), an LED controller (61) that generates a control information group in which lighting control information for selected LED drivers is arranged and a cascade line that connects the LED drivers in cascade. The LED controller (61) enables the selected LED drivers (5), and feeds the control information group to the cascade line, and the enabled LED drivers (5) perform an operation (acquisition operation) of acquiring the lighting control information on itself among the control information group whereas the LED drivers (5) that are not enabled do not perform the acquisition operation. According to the present invention, it is possible to reduce the performance of unnecessary operations of the backlight unit. The present invention can be utilized in a liquid crystal display device that uses LEDs as a light source of backlight.