The latticed windows, as the name suggests, are opened for ventilation purposes. They are graced with artistically appealing patterns. According to historical data, latticed windows were widely used in palaces, gardens and dwellings during the Five Dynasties of the 10th century.

The latticed windows are fashioned out of brick, tile, masonry or wood carving, and they come in a variety of shapes - square, hexagonal, knife, fan, leaf, or vase, etc. Highly decorative and artistically appealing, the latticed windows are fine works of art that serve to enhance the visual beauty of the walls; and render depth to the scenery by "framing" it into so many lovely pictures.

The latticed window as a favorite means of architecture engineering was widely used by architects in old days. They have remained an integral part of modern architecture.

Source: artschina.com