When deciding on a LED screen, firstly you should answer some questions. What’s most important is a place and characteristics of work. Outdoor screens require different LED modules than indoor screens. Another important thing is an average distance from which our screen will be watched - the bigger the distance, the lower resolution of modules will be needed. The surroundings from which the screen can be seen, are not less important. If the screen is visible in a wide range of angles, you should choose modules with a possibly widest viewing angle. The last, but not least is the screen size, but this parameter might slightly change, considering the firts two factors.
For example: If you need an outdoor screen which will be wall-mounted at the height of 1st floor and watched from the distance of 10-20 m and the preffered size is 600x300 cm, we can assume that we should use modules with resolution P10, P12 or P16. A wide viewing angle suggests using newer SMD modules instead od DIP. InexLED modules used in producing our screens with resolution P10 are based on SMD technology and they are characterised by high brightness over 6000 cd/m², energy efficiency and wide viewing angles – 160° horizontally and 140° vertically. That is why the optimal choice will be the P10 module and the screen size 600x300 cm which guarantees the screen resolution at the level od 600x300 pixels. Just for comparison – P16 screen would offer only 375x187 pixels.
When choosing a LED screen, the attention should be given to the resolution of LED modules offered by a supplier. The lower the factor P (Pixel Pitch), the higher the resolution gets, e.g. P2 module offers 500 diodes per running metre and a quarter of a million diodes per 1 m²; P5 module offers 200 diodes per running metre and ,,only” 40 thousand diodes per 1 m².
Contrary to popular belief, the resolution is one of the most important parameteres when it comes to choosing a screen, especially in an outdoor use. For indoor screens, a range of suggested resolutions oscillates between P3 and P5 ( in cases requiring a very high quality of the image, we suggest P2 or P2,5). For outdoor screens in most cases we use resolutionns P5-P10. Using modules with lower resoultions e.g. P20 or P30 makes sense only when the screen is installed on high bulidings – over 5-6th floor.
Another important element is the brightness. For indoor screens in most cases the brightness at the level of 1000-1500 cd/m² is optimal and for outdoor screens it oscillates between 5000-7000 cd/m².
Equally important is the refresh rate of the display, in this case this parameter should be more than 1000 Hz. InexLED modules in most cases are characterised by the refresh rate at the level of 1920 Hz.
Of course. InexLED outdoor screens meet airtightness standards IP65 and are able to work in temperatures from -25 to 40ºC. Each outdoor screen is equipped with a module which controls environment parameters like temperature, humidity or ambient light sensor. Screens are also equipped with a ventilation system and heaters, ensuring optimal work conditions for control electronics.
Light sensor, which works together with the system that controls the screen brightness, allows to adjust the brightness of displayed images to surrounding conditions. It means that the screen shines the most on sunny days, less on cloudy days and during the night the brightness is adjusted automatically, so the content is visible and doesn’t dazzle drivers and other people. Apart from the visibility of contents, this module allows to reduce energy consumption by 25% contrary to the screens without that system.
Each screen is produced for a cpecific client. Apart from some standard screen sizes, every ordered screen is adjusted to individual needs and client’s expectations. Our screens are made of small modules and thanks to that we can select a size with the accuracy of 20cm.
Regardless of wheter you want to order a screen with a length of 6 m and a height of 3 m, 20x5 m or 8x15 m, we always configure it to be the best possible product given to our client.
Each LED screen consists of LED modules which are made of several hundred to several thousand diodes. There are 3 types of LED modules used on the market:
- a module based on RGB SMD diodes – it is the highest quality type of diodes in which one diode emits 3 primary colours at the same time – R (red), G (green) and B (blue). These diodes are characterised by a high quality of the emitted light, wide viewing angles, colour stability and durability and energy efficiency. This type of diodes allows to create modules with high resolutions - even under P2.
- a module based on RGB DIP diodes – it is a type of diode which, like RGB SMD diodes, can emit 3 primary colours – RGB, contrary to SMD diodes it doesn’t have that wide viewing angles and has a way bigger demand for energy.
- a DIP 1R, 1G, 1B module – these modules consist of 3 sets of diodes which are installed close to each other. Each diode emits only one colour, but its closeness gives the illusion of emitting many colours. Modules based on this technology have definitely lower resolutions than modules based on RGB SMD diodes. The energy consumption is the highest in this case.
The low refresh rate is responsible for this. It means that the refresh rate is much lower than 1000 Hz which is an absolute minimum. Most of inexLED modules provide refresh rate at the level of 1920 Hz.
It depends on the operating system we decide to choose. In case of synchronous systems, to provide images for LED screens we can use a computer, media player, video player ora any other video signal source. In case of asynchronous systems, a screen displays images provided by an integrated electronic system.
In most products from inexLED Totem and Poster series and some screens we install asynchronous systems. The biggest advantage of that systems is a full autonomy of operations and resistance to interferences. The integrated internal Flash memory allows to save around 2 hours of content e.g. video content and when there is no internet connection, the screen still works automatically displaying contents from its integrated memory.
Each asynchronous module can be equipped with wireless communication systems – WiFi or GSM (3G or 4G).