What should I do if my roll-up LED display has color difference?

  We are using the roll-up LED display, sometimes encounter the situation of color difference, because the roll-up LED display is mainly by the combination of red, green and blue to produce a variety of colors, but these three colors are made of different materials, the perspective is different, the spectral distribution of the different LEDs are changing, these differences can be observed is called color difference. Then you knowRoll-up LED DisplayThere is a color difference, what should I do? The following Vishay Technology editorial is for you:

  Possible reasons and solutions for color difference in roll-up LED display:

  I. LED lights:

  1, poor heat dissipation, so that the temperature of the roll-up LED display is too high.

  2, the phosphor coating is not uniform, the thick parts of the coating color temperature is low and easy to yellow, phosphor quality is not good.

  3, encapsulation glue material defects, positional errors in solid crystal, errors in spectroscopy and color separation.

  Solution: Replace the LEDs.

  II. Control IC:

  IC is the nerve center of the entire roll-up LED display, it controls the entire roll-up LED display, IC once there is a problem, can only do is to adjust the parameters.

  Solution: Contact the manufacturer for repair and resolution.

  III. Problems with electricity supply:

  Problems with the power supply can also lead to color difference in the roll-up LED display, the instability of the power supply system can lead to major failures of the entire roll-up LED display, problems with the power supply system, resulting in uneven power supply and other phenomena of the LED module.

  Solution: Contact the manufacturer for repair and resolution.

  IV. Production process:

  Roll-up LED display in the production process mixed materials, with different batches of dot matrix.LED module after wave soldering, often in the process of testing, repair, welding row pin row mother and transfer the process of collision, and then in the so-called whole line before the filling of the so-called line, such easy to lead to the roll-up LED display on the lamp irregularity, which leads to the module off-color.

  Solution: Rework or replace the module of the roll-up LED display.

  To sum up, it is the possible reasons and solutions for the color difference of the roll-up LED display, and I hope it can help you.