Outdoor Digital Signage Protection.
When LCD and plasma TVs are employed outdoor in the open, employed for out-of-doors dynamic advertising, passenger information or just for entertainment, frequently in an outdoor LCD enclosure, some monitors are left vulnerable
Sunlight creates many challenges, each being related to the varying radiation emitted from it. The 3 sorts of radiation that is present in sunlight is visible light, ultra violet and infra red and all produce problems with outdoor televisions.
Outdoor Digital Signage
The most comon we see is visable light, the extreme, bright light over powers the backlight of the TV, making the monitor appear washed out, with low contract and low quality makes the TV hard to see even in high light setting.
High brightness monitors are being deployed to make certain that outdoor tv’s are still readable – immaterial of the lighting condition. To do this they either use high power backlights that are in surplus of three times the standard Industrial grade display, alternatively transflective technology that utilizes the sunlights own light to strengthen the picture. Both work well but the first solution uses more power and is less green.
With the sun, heat is produced and causes issues with outdoor Monitors. Infra red radiation is the heat we get from the sun, this heat causes heat built up adding to the heat produced by the display.
So how do you counteract the issue of excessive heat build up made by the sun? An out-of-doors LCD case with the best thermal management system, it is paramount that the cooling system is controlled automatically by thermostats.
Ultra violet radiation is the very last problem for outdoor screens. Ultra violet radiation will discolour a monitor when the sun is in the direct path of the screen causing the tv to go either yellow or grey, the perfect solution is to have a special tint on the front of the window and to make sure the screen is not too near the front window as this will trap hot air and will cause pixels to fail.
Outdoor digital signage is huge and constantly growing, without protection the hardware is susceptible to failure due to the potential damage the sun can do to the outdoor digital signage hardware.