(A) shows the content of needs;
(2) site conditions in space;
(3) The display unit module size (indoor display) or pixel size (outdoor display).
2. Power consumption and power requirements
The screen is divided into the average power consumption and maximum power consumption. The average power consumption is also called the work is usually the actual power consumption. Maximum power consumption is a startup or extreme conditions such as full-light power consumption when maximum power is alternating current power supply (diameter, switches, etc.) must be considered elements. The average power consumption is generally the largest power of 1 / 3.
Display is a large-scale precision electronic equipment, in order to safe use and can * work, its AC220V power supply input connected to the computer or its input AC220V power supply must be grounded.
Note: Your computer’s power supply input AC220V ground terminal has been connected with the computer chassis.
3. Outdoor screen issues should be considered
Outdoor screen main issues are as follows:
(1) screen installed in the outdoors, often exposed to the sun and rain, wind and dust cover, poor working environment. Electronic equipment is wet or damp can cause serious short-circuit or even fire, cause failure or even fire, resulting in losses;
(2) The screen may be caused by the strong electric magnetic thunderbolt attack;
(3) The ambient temperature changes significantly. Display work itself, we should have some heat, if the ambient temperature is too high and the heat also poorly integrated circuits may not work correctly, or even burned, making display systems do not work;
(4) Shouzhong Mian wide and far-sight requirement, wide field of vision required; ambient light changes, in particular, may be subject to direct sunlight.
(1) The screen body and screen combination of body and the Ministry of Construction must be strictly waterproof leakproof; screen body have a good drainage measures in the event of a smooth water emissions;
(2) on the screen and buildings to install lightning protection devices. Display main body and shell to maintain good grounding, grounding resistance of less than 3 ohms, so that lightning caused by high current and timely discharge;
(3) installation of ventilation equipment, cooling, so that screen the internal body temperature between -10 ℃ ~ 40 ℃. Body behind the top of the screen to install axial fans, exhaust heat;
(4) The choice of working temperature -40 ℃ ~ 80 ℃ between the industrial-grade integrated circuit chip, to prevent the winter temperatures too low to display can not be started. ;
(5) In order to ensure that the case of the strong ambient light visibility distance, you must use ultra-high-brightness light-emitting diode;
(6) shows the use of new media, wide angle tube, wide viewing angle, color pure, consistent coordination, life expectancy more than 100,000 hours. Shows the medium outside the package, currently the most popular cover along with a square cylinder, silicone seals, no metal-based assembly; its elegant exterior appearance, sturdy and durable, with anti-direct sunlight, dust-proof, waterproof, anti-heat, anti – a short circuit “Five Anti” feature.