source:other news release time:2023-06-07 Hits: Popular:led screen wholesaler
Mosaic refers to the small four squares that appear on the LED display screen to be constantly bright or dark, which is the phenomenon of module necrosis. The main reasons are: ① the quality of the connectors used in the LED display screen is not good, and there are protrusions or recesses;
② The LED light is not aligned;
③ The sealing adhesive process is not qualified. Dead spots refer to individual dots that appear frequently black on the LED display screen, and the number of dead spots is mainly determined by the quality of the LED chip.
Color blocks refer to small areas lacking color; The main reason is to control the quality of IC and power supply, as well as control the wiring arrangement of the circuit
Display screen appearance: It is the most intuitive and primitive evaluation of product quality. The appearance quality can reflect the production process and material quality of the manufacturer
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