What about the "Mosaic" on the LED display

Time:2018-10-19 Views:1209

The "Mosaic" phenomenon has long been a problem for LED display manufacturers.From the perspective of phenomena, the phenomenon of "Mosaic" of LED display displays inconsistency in the brightness subarea of the display surface, that is, poor uniformity.The fundamental cause of the Mosaic is the consistency of the lamp itself and the lack of consistency in use.

What is LED display Mosaic phenomenon?

The LED module is a kind of LED (light emitting diode), which is arranged and encapsulated according to certain rules.The main visual surface of the quadrilateral module can have a decorative structure for the fuzzy module joint boundary.LED module COB LED light source, surface light source, the utility model from the perspective of visual and optical, make form the dislocation short straight line, the use of visual linearity, the human eye vision from the top down (or direction) scan can‘t both dislocation, dislocation is bound to form numerous discontinuous short line segment, so as to eliminate the gap between the because of the module of LED display Mosaic phenomenon.

The LED module is a widely used product in LED products. There are also great differences in structure and electronics. The simple one is to use an LED circuit board and enclosure to form an LED module.

How to solve the "Mosaic" problem?

Use the same batch of red, green and blue LED lights in each LED display manufacturer, and re-classify the red, green and blue LED lights in this batch.The constant current device is divided into 5 grades, and the constant current source of each level is uniformly distributed to the whole screen for LED unit plate production. The standard production fixture ensures that LED lights are in the same balanced position in the same module.

Control the mold manufacturing process to ensure that all LED lights in the module are level, up, down, front and back without abnormal deviation.After filling, fix the lamp with the standard front cover.Each LED panel is subject to a single module brightness adjustment, that is, a white balance fine adjustment to ensure a uniform white balance between modules.

Assemble the module into box.The box body is made of steel and reinforced in place.Ensure the rigidity and smoothness of the box.The box body stamping and bending is formed by numerical control equipment at one time, and the CNC punching machine is used to ensure the module installation precision.And has the appropriate margin to eliminate the accumulated error.