说明：  DP5020是LED显示面板设计的驱动IC，它内建的CMOS位移寄存器与锁存功能，可以将串行的输入数据转换成平行输出数据格式。
(DP5020 is the driving IC of LED display panel design. It has built-in CMOS shift register and latch function, which can transform serial input data into parallel output data format.)