First of all, it can be confirmed that there was no trademark awareness in ancient times, both in the East and the West. The so-called signs are nothing more than family signs and flags. Home signs are not popular in China, but are popular in Japan and the West, such as the chrysanthemum sign of the Japanese emperor, the rose sign of house of lancaster, England and so on. China is dominated by words and monsters. Such as the name of the commander-in-chief, country name, Flying Tiger flag, flying bear flag, etc.