Windows were used from the Warring States to the Han Dynasty. A straight bar is called a straight window, so there is a horizontal bar.
Yes, it's called lying on the window. Transverse lattice window is an original style of shutter, which can also be said to be shutter.
Original state. In the Ming dynasty, the sleeping window had a great development. All kinds of brick towers were built in the Song Dynasty.
Similar straight lattice windows were also used as lying lattice windows on brick towers in the Ming Dynasty, and there are many examples, which are the predecessors of shutters.
It was originally called a lying window, and later developed into an ancient lying window called a shutter. Venetian blind, China
The development of windows has a history of six or seven hundred years. Then why are there shutters abroad? Why is there one in America?
Shutters? This problem remains to be discussed. One possibility is that it spread from China to foreign countries and foreigners entered.
China saw blinds in China. Inspired by this, they also made blinds. The second possibility is different countries.
People of different degrees have the same wisdom, and it is entirely possible that they are all made up.
In fact, the window lattice is mainly used for ventilation and fresh air. As for the window lattice, of course, it is nothing more than that.
Several styles, either horizontal or vertical, then horizontal is the embryonic form of blinds. Strictly speaking,
There is a difference between a lattice window and a shutter, that is, the lattice window is parallel and the gap is transparent. The louver lattice is inclined.
You can't see inside and outside in the horizontal direction, you can only see it by looking at the inclined plane.
However, the modern shutter was invented by an American named John Hampson, and was patented on August 2 184 1.