If you display the same message on your LED sign for a month, chances are that it will become stagnant to the intended audience and therefore has less impact. You should change it up often. That is what seperates an LED from static signage. Keep the audience interested in what you are saying.  Mix it up!  You have a very powerful tool that can be used for the greater good.

We encourage our customers to display public service messages when applicable. Messages such as Amber Alerts, severe weather and even local sports scores can ensure that the public relies on your display for up to date information and also the goods or services that you offer.

Use good judgement as well to ensure that your graphics are not annoying to viewers. In other words, obnoxoius flashing, extremely fast animations or excessively bright displays can actually make a viewer dislike your message and can fuel municipalities to enforce strict guidelines on LED content.

You should research your local sign code (or ask your sign professional) to find out what is allowable where you are located. Once you know what you can do, you should use good taste and even better judgement in your content creation.