How to solve the problem of color difference of double color led display screen?

We often meet at the mall, the railway station to double color led display, but double color led display using a long period of time will appear off color problem. So how do we solve the problem of color difference of double color led display screen? The cause of color difference, double color led display screen to solve the problem of double color led display screen have off color, the first thing to analyze the cause of double color led display screen have off color. Double color display color difference of causes including luminous element damage, damage to the driving element, such as two reasons. 2, luminous element damage due to the double color led display screen is made up of small light-emitting diodes, so a lot of leds in the process of production quality is different, this leads to the products spread to the market to have the differences above, there are certain off color. So touched off color problem, need to change the accessories of the light-emitting diodes (leds). Three, damage to the driving element, double color Led display screen is controlled by the driving element of luminescence brightness adjustment, if there is color difference is likely to be driven original damage, leading to the brightness of the diode differed, looks like there is chromatism. If it is a drive component failure, we need to change the driving element. Four, different batches of the screen in addition to this, double color led display screen if the screen of batch is different, also can appear certain off color. Different batches of the brightness of the display is different, combined will appear off color. That is double color led display screen a few common reasons of appear off color, color difference problem we met in before to exclude from the above several issues. Only in this way, you won't miss the cause of occurrence chromatism, can perfectly solve the problem of color difference. Led display and liquid crystal display screen on the display effect what difference is there?