Cause of partial color of LED display module

LED display module side see the module between the color and color, the color is not consistent, how is this?The following is an analysis of the reasons for the partial color of the LED display module. After reading these, you can solve your doubts.

1. Problems of LED lamps :(including inconsistent wafer parameters, defect of packaging glue material, position error of solid crystal, error of spectral separation and other factors), which will affect the luminous wavelength, brightness and Angle of LED lamps of the same batch.Therefore, the production of LED display screen has a very important process: mixing lights.Mix all the LED lights of the same color evenly, and then plug them into the PCB.The advantage of this is to avoid partial color deviation of LED modules.

2. Production process: after the wave soldering of the LED module, the LED position has been fixed, and it should not be moved at this time.But many companies do not have the protection conditions, often in the process of testing, repair, welding pin discharge, aging and transfer process collision, collision LED lights.Then, the so-called whole line is carried out before pouring glue, which easily leads to irregular zigzag of lights on the LED screen, leading to partial color of the module.

3. Power supply problem: in the design of LED display screen, we cannot know what materials to choose (including the selection and consumption of power supply), and there are problems in the power supply system, leading to uneven power supply phenomenon of LED module.

4. Control system and control IC: since LED display manufacturers do not have the design, development, testing and production capacity of LED display control system and control IC.Of course, the production of the display screen can not be guaranteed, only to do is to adjust the parameters