If you look at the newest ultra-thin laptops on the market today, you will probably notice how much thinner and lighter they are compared to the laptops of even 5 to 10 years ago. Gone are the ventilation channels, filters and fans and their associated bulk, weight and cost. Yet Moore’s law implies that the number of transistors is doubling every two years. You would think that the heat management problem would be getting worse. What gives?
Fortunately, the semiconductor industry has managed to reduce the power dissipation faster than the growth of the device complexity. This has allowed equipment designers to eliminate much of the ventilation components of years past resulting in products that are thinner, lighter and more reliable.
Just as the computer designers have reduced the heat created in modern laptops, SESA has been pioneering the increased efficiency in display technologies which allows for the elimination of sign ventilation provisions.
However, in our Dynamic Message Signs (DMS) world, it seems that this technological evolution is not yet taken into consideration. Numerous specifications throughout the country still call for DMS ventilation, temperature monitoring, intake filters, etc. Many useless devices that add costs, use energy and increase the maintenance of our DMS.