Teng Hongyuan.
QR code was invented by Teng Hongyuan. 1. As a new information storage, transmission and identification technology, QR code has attracted the attention of many countries since its birth. 2. QR codes can be divided into two categories, one is stacked type and the other is matrix type. 3. QR codes have many characteristics, including high-density coding, wide coding range, and strong fault tolerance.