![]() Perhaps then the client would feel they actually have input in their solution rather than being told what they “need. The resolution needed should be a discussion not a hard and fast rule and it would behoove the industry to approach the topic with questions instead of statements. Whether that is a manufacturer simply wanting to sell the higher priced solution is up for debate but it seems that time and time again clients that are enamored by resolution have been led there under poor assumptions or worse false pretenses. Too often clients are misled by manufacturers into believing they need the latest resolution available even when a lower resolution will suffice. ![]() I would argue there are just too many factors involved for someone to put something firm down as rule of law. It’s truly a conversation and not a hard and fast rule. While three feet is the rule of thumb we walk around with, give me some highly granular content and I can make a 2.5 look pixelated from 7 feet away. There are too many factors involved that can directly affect perceived resolution such as content, size of the display and viewing angles. Viewing distance is a subjective concept that has evolved as the industry has become more in tune with the fundamental differences between indoor and outdoor LED. I’ve seen fine pitch stuff up close and it looks OK, but just OK.Ĭlarity needed … opinions and definitive information (if it exists) much welcomed. I suppose it depends a bit on what you think is OK, but when you can see the individual LEDs, that tends to mean you’re inside the minimum viewing distance. NanoLumens has a chart that suggest it is about 4 feet per mm, so that the suggested distance for a 2.5mm is 10-12 feet. PixelFLEX says it is roughly 3 feet per 1mm. formulated calculation of the distance a person with 20/20 vision must move. So in a 2mm pixel pitch screen it is 3 meters, or about 10 feet. When selecting a Direct View LED video wall, the most fundamental decision. This Dutch reseller says the rule of thumb is 1.5 x the pixel pitch, in meters. So in its formula a 2.0mm display looks good from 7 feet away.Ībsen says it is 1mm to 1 meter, so that 2mm would look good from 6 or 7 feet away, too. However LG, which like most big display companies has introduced direct view LEDs, has an infographic out saying the rule thumb is not 10 feet per millimeter, but 3.5 feet per. So a 2mm display looks good starting at 16 feet back So always check what local or regional standards and regulations do apply. At the moment ROE Visual is working hard to extend the Ballast Calculator with calculations for the Air Frame.Christie’s rule of thumb is 8 – meaning you multiply the pitch by 8 to get feet. ![]() ROE Visual can refer to its whitepaper on wind loading for outdoor conditions for those who are interested to learn more on this topic.Īlthough the results are based on an in-depth structural analysis, the Ballast Calculator can never replace a structural calculation, in some cases this might be required by the local authorities. ![]() The ROE Visual calculator is only valid in indoor situations and cannot be used for outdoor conditions. All available types of stacking system are added to the ballast calculator. Just enter the panel type, the required size of your video wall, the amount of stacking rear trusses used and the amount of ballast needed for your stacking system will be automatically calculated. This simple calculating tool actually helps the AV technicians making their job simpler and safer”Ĭomments Luc Neyt, Deputy Director Sales and Service Center.Īvailable in no less than six languages, the ROE Visual Ballast Calculator offers ballast information for a broad range of ROE Visual LED panel types, such as the Carbon series, Black Onyx, Black Pearl, and Sapphire, but also the newly added panels Vanish V8 and Ruby. “Creating awareness on safe working practices is crucial. Not all AV technicians are aware of the total weight a complete LED screen can amount to and what forces this can generate, even if you use it indoors.ĭownload the ROE Visual LED Ballast Calculatorįor ROE Visual it’s of paramount importance that its customers are aware of these factors and can build their LED wall safely. Even if you use the official ROE Visual LED stacking systems, in most cases it’s necessary to add extra ballast. When you are building large video walls, one of the most prominent challenges is to do this safely. ![]()
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