If you are a school administrator considering a new live action stadium display for the basketball court, consider one friendly to the TV cameras in case you get to the finals in the March Madness. Not all LEDs can be seen clearly on TV but if you watched the 2010 world cup from South Africa, some LED signs are crystal clear.
The reason LED signs flicker on TV is the refresh rate of the LED is slow enough to interfere with the shutter speed of the TV or video camera. Likewise when you are watching an old movie that has a TV playing with a blurry picture, the on screen TV refresh rate is too slow for the movie camera.
Your typical LED sign has a refresh rate of 300HZ but we can build one with a 1,500HZ refresh rate that is fast enough to eliminate camera flicker; even in slow motion replays with professional sports network TV cameras. The refresh rate of your digital sign is an important technical attribute but not one that many people consider when buying a sign. If your sign will be in an area where it will be photographed by video or TV cameras, call us to find out what to specify for clarity of the recorded image.
