| 摘要 |
<p>An LED brightness control device (100) is provided with: control means (101, 102); and a brightness control information register (103), D/A converter unit (105), and LED driver (107) that are connected for each LED row to control multiple LED rows. The LED brightness control device (100) is configured so that the brightness control information register stores information bits for brightness control and information bits for color tone control, and the D/A converter unit performs D/A conversion on the basis of the information bits for brightness control and the information bits for color tone control and turns the output to the LED driver (107) off or sets the output to zero when the information bits for brightness control and/or the information bits for color tone control are data indicating "0".</p> |
