To determine the energy consumption of a screen several elements must be taken into account. First of all the nature of this screen. Indeed, backlit solutions such as LCD monitors consume more energy than SMD Screens solutions.
Then, the location of the screen will also play an important role. If it is installed indoors or outdoors brightness will not be the same. As a result, an outdoor or window display will generally need a higher light intensity.
Finally, in the case of an LED screen, the size/resolution ratio and the PITCH will determine the number of total LEDs used by the screen. Logically, the more LEDs to power, the greater the power consumption.
In addition, there is also the power supply for the other components necessary for the operation of the screen. One can think for example of the video processor or the elements of the control system. Their consumption will then be dependent on the quality of these elements.
Indeed, the overall quality of the screen directly impacts its level of energy consumption. In general, a giant screen, with the same surface, brightness, and resolution, has lower energy consumption means that special care has been given to the elements that compose it. However, this selection of quality components will generally imply a higher selling price.
This is why the cost of SMD screens must be considered in the long term. Indeed, high power consumption or faulty components will have a budgetary impact over time. The price of a high-end display can ultimately be offset by lower electricity bills.
The energy consumption of a screen is generally expressed in kiloWatts per unit of time, for a given surface. The manufacturers provide it in the technical data sheet with an average value and a maximum value.
POWERING GIANT SCREENS
In most cases, giant screens are directly connected to the main power circuit. Integrated transformers then allow the electricity to be redistributed to the various components of the screen (an LED module, for example, is supplied with 5 V). They can also run through a generator as part of mobile screens or truck screens like the Truck video.
On average, it is considered that the need for SMD Screens is about 1 kva/m². In reality, this is very variable depending on the fluctuations in light intensity of the screen related to its environment. However, this is configurable thanks to a processor which will determine in advance the average and/or maximum brightness. that the screen will adopt.
GIANT SCREENS: MORE ECOLOGICAL OR NOT?
The consumption of a giant screen indeed remains significant. It is on average 3,850 W for an 8 m² screen. However, it is necessary to take all the elements into account to determine the real environmental impact of the screen.
For example, for advertising screens, municipalities can require the screens to be turned off during certain time slots. Similarly, this global carbon footprint must be assessed in comparison with other communication solutions. Then comes the management of consumables for more traditional solutions.
Indeed, a giant advertising screen makes it possible, for example, to make savings in the production of paper, ink, and urban travel, among other things. As demonstrated by the Oxialive study conducted in 2010, which compared LED screens and standard scrolling display solutions.
She observed that a screen produces 323.1 kilos of carbon emissions per year against 7640 kc for the traditional display solution. This significant figure comes mainly from the production of ephemeral media (4.6 kg C per advertisement). This represents an emission of 0.09 kg of greenhouse gases per year for the first against 0.87 kg for the second.
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