There are various forms of screens, mainly including inserting screen (also called seat screen), folding screen (also called curved screen), hanging screen, kang screen and desk screen (also called inkstone screen). If divided by texture, there are more, such as jade screen, carved screen, glass screen, mica screen, silk screen, painting screen and so on. The screens made by different techniques have their own merits, and the jade inlay is clear and exquisite; Gold lacquer painting is colorful and brilliant; Carved gold and filled with gold, the lines are smooth and magnificent; The blade carved with gray color is sharp and vigorous.