In ancient architectural culture, what is the "partition door"?

The partition fan, sometimes written as "lattice fan", actually means the same thing. Although it is simple, it has a history of more than two thousand years. It is generally believed that the appearance of partition fan should be in the Han Dynasty more than 2000 years ago, and there are many examples in the pottery buildings of the Han Dynasty unearthed today. It is said that the earliest existing partition fan in China is the Ge Yuan Temple of Liao Dynasty in Laiyuan, Hebei Province, while there is a Chongfu Temple in Shuozhou, Shanxi Province, whose main hall has more than 20 patterns of partition fans in Jin Dynasty, ranking first in the world.