Calligraphy double digging is calligraphy double digging screen. Double digging screen is a form of hanging screen (screen strip) for calligraphy and painting, and works with long and narrow pictures are suitable for mounting into hanging screens. A single picture is called a "strip" (screen strip). There is no limit to the content of calligraphy and painting. There are four, six, eight, ten, twelve or even sixteen hanging screens, which are closely linked.
Calligraphy double digging screen (another three or four digging), that is, two calligraphy works, the framed pictures are separated or connected to form a screen.
The following is the legend of painting and digging: