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一、Core Component: Light Emitting Diode led: Leds are the pixels of an led display screen, which are the most basic light emitting units. ①Electroluminescence: When an electric current passes through a special semiconductor material, electrons and holes recombine, releasing energy in the form of photons, thus emitting light. ②Color principle: A single led chip can […]

一、SMD(Surface Mounted Device)Led Display Screens: 1) SMD Led Displays working principle and appearance: ①Packaging structure: The red, green, and blue chips are packaged together in the same bracket to form a tiny, square dot, which is a complete full color pixel unit. ②Installation method: Surface mount technology is used, pads are prefabricated on the PCB

一、The difference between synchronous control and asynchronous control： ①Synchronous control: The screen content is synchronized with the computer monitor in real time. Whatever is displayed on the computer, the led screen will immediately display the same content, and it is equivalent to an extended monitor for the computer. ②Asynchronous control: The screen can operate independently