283 月/22 LED display unit board PCB design rules 28 3 月, 2022Postcapacitance, cell board, chip, column line, Components, digital device, drive device, nner electrical layer, PCB copper foil thickness, Power Cords and Row Cords, Power pad, Production Process, Signal Line, via, wiring layerAlice 1. General (1) When the design rulesRead More…