What is the LED display mosaic phenomenon?
The LED module is to arrange the LEDs (light-emitting diodes) according to certain rules and then package them together, and some waterproof products are LED modules. The main viewing surface of the quadrilateral module may have a decorative structure for blurring the splicing boundaries of the module. LED module COB light source LED surface light source The utility model makes the linear line form a misaligned short line from the perspective of vision and optics, and utilizes the linearity of the vision, and the human eye vision can not simultaneously take care of the dislocation when scanning from top to bottom (or moving in the left and right direction). Two, it is bound to form an infinite number of misaligned short-segment segments, thus completely eliminating the LED display mosaic phenomenon formed by the gap between the modules.
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 board and a housing to form an LED module. Some of the controls, constant current source and associated thermal processing make LED life and luminescence better.
How to solve the "mosaic" problem?
The same batch of red, green, and blue LED lights are used on each LED display manufacturer, and the red, green, and blue colors of the batch of LED lights are re-filed. For the constant current device, the inter-chip binning is divided into 5 files, and the constant current source of each grade is evenly distributed to the whole screen for LED unit board production. The standard production fixture is used to ensure that the LED lights are in the same module. The same equilibrium position.
Control the mold making process to ensure that all LED lights in the module have no abnormal position in the horizontal, up and down, front and back. After filling the glue, fix the lamp with a standard front cover. Each LED unit board performs single-module brightness adjustment, that is, white balance fine adjustment to ensure uniform white balance between modules.
Assemble the modules into a box. The box body is made of steel plate rib structure and strong ribs are added at appropriate positions. Ensure the rigidity and flatness of the plane of the box. The box body stamping and bending are formed by numerical control equipment at one time, and the CNC punching machine is used to ensure the accuracy of the module installation. And have the appropriate margin to eliminate the cumulative error.
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