What should be considered in the design and installation of outdoor screens?

Bullet Points

Full-color led display

The main problems of outdoor screens are as follows:

(1) display installed in the outdoor, often sun and rain, wind and dust cover, the working environment is harsh. Electronic equipment is wet or serious moisture will cause a short circuit or even fire, leading to failure or even fire, resulting in losses.

(2) The display may be subject to strong electrical and magnetic attacks caused by lightning.

(3) The ambient temperature varies greatly. Display work itself to produce a certain amount of heat, if the ambient temperature is too high and poor heat dissipation, the integrated circuit may not work properly, or even be burned, so that the display system can not work properly; (4) the audience is wide, the display will not work properly.

(4) The audience is wide, the distance required is far, the field of view is wide; the ambient light changes greatly, especially may be subject to direct sunlight.

For the above special requirements, the outdoor display must do the following.

(1) the screen body and the combination of screen body and building must be strictly waterproof and leak-proof; the screen body should have good drainage measures, once the water can be smoothly discharged.

(2) Lightning protection devices are installed on the display and the building. The main body of the display and the shell are kept well grounded, with a grounding resistance of less than 3 ohms, so that the large current caused by lightning can be discharged in time.

(3) Install ventilation equipment to cool down the temperature so that the internal temperature of the screen body is between -10°C and 40°C. (3) Installing axial flow fans above the back of the screen body to discharge heat.

(4) Select industrial grade integrated circuit chips with working temperature between -40℃ to 80℃ to prevent the display from starting up in winter when the temperature is too low. (5) To ensure that the display does not start in ambient light

(5) In order to ensure long-distance visibility in strong ambient light, ultra-high brightness light-emitting diodes must be used.

(6) The display medium is made of a new type of wide viewing angle tube, with a wide viewing angle, pure colours, consistent and coordinated, and a life span of over 100,000 hours. (6) The display medium is made of a new type of wide viewing angle tube, with wide viewing angle, pure colour and consistent coordination, and a life span of over 100,000 hours.

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