What is the name of the wall facing the gate of the northern farmers?

The pattern of self-built houses in most rural areas in the north belongs to quadrangle pattern. The wall directly opposite the entrance of the quadrangle is called the shadow wall. On the side facing the gate, flowers, pine and bamboo patterns or Chinese calligraphy are usually placed on the front of the screen wall. Write auspicious words such as "Fu", "Lu" and "Shou". There are also some screen walls painted with auspicious patterns, such as "Song Yan He Nian", "Magpie Climbing Plums" and "Kirin Sending Children", which create a scholarly atmosphere of the quadrangle. Some farmers also use words or pictures such as "bumper harvests", "good luck" and "happiness as the East China Sea". This kind of screen wall is located at the entrance of the gate, some are built separately, and some are embedded in the gable of the wing. The screen wall, also known as the screen wall, is square, surrounded by brick carvings, and the square in the middle is calligraphy or painting. Zhaobi is divided into two parts: the base and the wall. In addition to adding atmosphere to the courtyard and praying for good luck, the wall also plays an isolation role, making it difficult for the outside world to peep at the activities in the courtyard.