| 摘要 |
PURPOSE: An LED display board having independently controllable main-pixels and sub-pixels is provided to improve visibility, explicitness, and conspicuousness by configuring sub-pixels to display various images. CONSTITUTION: A first controller(32) outputs a main pixel control signal(C1) for controlling a main pixel(12) of an LED pixel panel(10). A second controller(40) outputs a sub-pixel control signal(C2) for controlling a sub-pixel(14) of the LED pixel panel. A main pixel driving driver(34) drives the main pixels according to the main pixel control signal inputted by the first controller. |
