Wireless LED display as the security monitoring display heavy head soldiers, market developments in the field of direct impact on the security industry direction. Outdoor LED LED industry is the development of intelligent traffic has unparalleled advantages, is an important development direction of the LED field. With LED technology, unprecedented prosperity, wireless LED display products of concern, widely used in commercial advertising, the live broadcast, traffic guidance, the stage interpretation of other fields.
   
     Wireless LED display purchase reference


      High LED production process requirements, not all businesses have the appropriate strength, resulting in quality wireless LED display on the market varies greatly. LED lighting design requires very sophisticated optical system, LED tubes and condenser cup size is very small, the higher the relative position with the requirements of both, a little deviation, the light reaches the position of the stage will be a big gap. In order to meet the design requirements, process demanding manufacturers have a large number of LED tube consistency of screening, taking into account the disparity of the LED circuit board solder paste thickness produced, manufacturers will use automated laser welding process.


       In addition, the heat issues directly affect the LED's luminous efficiency. At present high-quality wireless LED display and process from the design to solve the heat problem, you can have more than thirty thousand hours of life, but the poor design or workmanship wireless LED display is possible only a few thousand hours or shorter life.
Professional development, design, strict management, enterprises from the components, selection of materials, advanced automation from mechanical to strict quality control of the production process (including the middle part of the aging process), are affecting every aspect of wireless LED quality display.
So how do you identify the wireless LED display and the bad? The following points would like to give you some inspiration.


     1. surface flatness flatness wireless LED display to within ± 1mm, in order to ensure the display image is not distorted, partial raised or recessed will lead to the display viewing angle appears dead. The quality of flatness is determined mainly by the production process.


     2. brightness and viewing angle indoor full color brightness to the 800cd / m2 or more, outdoor brightness full color to the 1500cd / m2 or more, to ensure the normal operation of the wireless LED display, otherwise they will not see because of the brightness is too low clear the displayed image. The size of the brightness of the LED die is good or bad decision.
    Wireless LED directly determines the size of the viewing angle of the display how much of the audience, and therefore the bigger the better. The size of the viewing angle from the die is encapsulated to decide.
 

   3. The balance effect balance effect is one of the most important indicators. Red, green and blue color science taken in the ratio of 1: 4.6: 0.16 pure white will show, if the actual proportion of any deviation occurs the white balance bias, usually pay attention to whether there are bluish white, yellow green phenomenon. White balance is mainly determined by the quality of the display control system, die on the reduction of color also have an impact.


    The color reduction color reduction refers color wireless LED display for color reduction, both display to maintain a high degree of color consistent with the playback source, so as to ensure realistic images.


    5. Have Mosaic, Mosaic is dead phenomenon refers to appear on the display lit or normally black small four-square, both modules necrosis, mainly due to its quality connectors used in wireless LED display, but off.
Dead point is lit LED display that appears on the radio or normally black single point, how good or bad from the die to determine the dead point.
    

    6. Have color color refers to the presence obvious color difference between adjacent modules, transition colors in module units, the color phenomenon is mainly caused by the control system is poor, the gray level is not high, scanning caused by lower frequency.