Q:Led display point density is what it means

Is the number of units per area LED, pay attention to if the RGB tube is three, then only one

Q:How do I choose the dot pitch of the LED display?

Installation classification: lifting, hanging, seat, inlay, rotating bracket hanging;

Q:What is the thickness of the led display?

The thickness of less than 75mm, with the aluminum. Can also be thinner but the material is not easy to find.

Q:LED electronic display and P have anything to do

The above-mentioned P4 indicates that the dot pitch is 4mm and P10 indicates that the pixel distance is 10mm. In addition, the best visual distance = point spacing / (0.3 ~ 0.8), for example, the dot pitch 16mm display, the best visual distance on this is 20 to 54 meters, the distance from the station closer to the nearest distance , And will be able to distinguish one of the pixels of the display, grainy stronger, stand far away, the human eye can not tell the details of the details.

Q:LED display more than the size of the area must be 380v

LED display itself only need low-voltage DC power supply, whether it is 380V or 220V need to go through the buck and rectifier, which is the screen does not matter. Whether it is to use 380V or 220V depends entirely on the load balance of the power grid considerations, which depends not only on the size of the display, but also on the local grid capacity. In general, LED is weak devices, even if the display area and then large, the total power is also less than where to go, so you can use 220V single-phase power supply, but the power supply cable cross-sectional area to be larger, but the power circuit Much simpler.

Q:LED display screen appears black? How to solve?

Of course, the above is basically caused by the hardware, then the software is the most likely is the computer suddenly poisoned, the solution is to financial security mode, and then a full anti-virus on the computer, and then use 360 security guards to repair the system

Q:LED display a board dark light how is it?

What is the board? P10 There are three reasons for that. 1, first check the power on the line to the board on the line whether the soup or not connected! (Change line), 2, check the board above the terminal. (That is, to the board of the black plastic wire, a screw fixed line) that is and the board with welding wire welding. There may be no welding good. You can remove the outside kit. (Next to a small screw, unscrew on the line) to get a welding torch from the welding. 3, the original board on the Weld it Need to return to the factory new. The You said the board made dark may also be because the outside of the package drums appear perspective reflection. LED normal viewing angle is 70-110 degrees, the hope of the answer can help you

Q:Production of LED display the basic raw materials which ah?

Circuit board, light-emitting diode, 138,245D, 4953, driver IC, capacitor, resistance, mask, bottom shell, bracket, magnetic column, waterproof glue, waterproof pad, pin, cable, power cord, power supply , Box, steel structure, control system (synchronous receiving card, send card, adapter board; asynchronous card)

Q:Is the TV screen good for the LCD or the LCD?

Although the cost of CCFL is not high, it is about ten yuan, but the maintenance staff will certainly open a high price to help you ), The operating voltage is lower (LED in 2V ~ 4V can work, and CCFL tube needs nearly 1200V high voltage to start, so need to use a special inverter circuit to provide high voltage. Inverter circuit is easy to bad.

Q:LED display power can not be displayed properly

Check and confirm that the serial cable used to connect the controller is loose or off. (If the black during the loading process, it is likely that because of this cause, that is, during the communication process due to loose communication line and interrupted, so the screen black. Do not think that the display body is not moving, the line can not be loose, please It is important to check the problem quickly.