How to Choose a High-End Rental LED Display for Concerts

A good concert LED rental screen can not only give the audience a good visual experience, but also add style to the overall theme of the stage.

A high-end rental display should have the following characteristics:

1. EMC optimization design

In the application, the LED rental screen needs to run with various electronic devices at the same time. In order to avoid electromagnetic interference with each other, it is necessary to carry out EMC optimization design for the LED rental screen. For example: PCB adopts spine-free wiring design, low-interference wiring method, multi-layer copper clad shielding, high and low frequency separation, multiple processing of sensitive signals and other technologies; more optimized circuit design, such as multiple filtering, pure power supply technology, etc.; multiple Shielding EMC box structure design, etc., through the above design to solve electromagnetic interference.

2. Dual cards, current sharing N+1 power supply dual backup

Since the LED display is composed of a large number of cabinets and a large number of electronic equipment, the inevitable failure rate of electronic equipment has always troubled the users of the LED display. Therefore, when some electronic devices on the LED screen fail, it is particularly important that the display screen can still work normally.

Dual-card, dual-power backup function backup is a solution to ensure the reliability and stability of LED display screens in high-demand environments.

Dual receiving backup mode, one cabinet uses two receiving cards. The two receiving cards work at the same time, and are in hot backup state for each other. When any signal fails, they will automatically and seamlessly switch to ensure that the display screen works flawlessly.

In the parallel use of current sharing power supplies, the method of N+m backup can be adopted to output larger power. In the parallel system, each current sharing power supply can share less power according to the power share. When a single power supply encounters failure and damage, other current sharing power supplies can continue to provide power to the system to improve system reliability.

3. Intelligent brightness adjustment

During the performance, the LED rental screen is not the only light source on the stage, and its display effect will inevitably be affected by stage lights such as projections, spotlights, and moving head lights. Therefore, it is necessary to install automatic light-sensitive adjustment equipment for LED rental screens, so that the display screen will not be affected by ambient light.

4. Cabinet status monitoring

The receiving card equipped with the LED rental screen can detect and monitor the communication status of the cabinet temperature, humidity, power supply, and fan signal lines, allowing on-site staff to control the operating status of the cabinet in real time.

5. Automatic calibration

What is "automatic calibration"? It means that the calibration data is stored on the module. When replacing the module, receiving card, or sending card, there is no need to do any debugging, no need to resend the data, and it can be used after power-on!

With traditional correction technologies such as "point-by-point correction", professional personnel are required to operate and resend correction data when replacing modules and receiving cards; each module needs to be numbered, and a folder is created to store the correction coefficient of the corresponding module, which is stored in a U disk or In the mobile hard disk, the user needs to save the module calibration coefficients separately, and record the module numbers to make one-to-one correspondence; after replacing the receiving card or module, it is necessary to re-import the calibration coefficients. If the coefficients are not imported after replacing the modules, the Block patches; if the user loses the correction factor, the correction cannot be enabled.

With the LED rental screen with "automatic correction" technology, users do not need to do any debugging after replacing the module or receiving card. When the power is turned on, the whole screen displays normally.

6. Silent operation

In some high-end occasions where LED rental screens are used, such as museums, concerts, press conferences, etc., there are requirements for the noise of LED display screens. It is necessary to use low-noise fans or fanless and low-noise power supplies. Sometimes in order to achieve this effect , will put forward higher requirements for the power supply part.

7. Low reflectivity

Due to the existence of other light sources such as projections, spotlights, and moving head lights, LED rental screens should also consider the issue of light emission. The LED rental screen packaging device adopts a full black body packaging design. The comprehensive effect of black PPA material and epoxy resin makes the front of the lamp bead black as a whole, so as to better improve the contrast of the display screen; the colloidal surface of the device adopts a matte design, It avoids the light reflection caused by the glue mirror effect, thereby effectively reducing the reflection interference and making the screen display softer and brighter.