Display device for display design teaching practical training

The utility model discloses a display device for display design teaching practical training. The painting scroll comprises a rectangular shell and a painting scroll body. Wherein an opening is formedin the upper end of the shell; a cover plate is arranged on an opening in the upper end of the shell; the picture scroll is arranged in the shell; a fixed rod is fixedly arranged on each of two end surfaces of the scroll at the lower end of the scroll through hot melting; a fixing strip is fixedly installed on the right side face of the shell through glue, a groove is formed in the left side faceof the fixing strip, one or more convex teeth are fixedly installed on one side face in the groove through glue, a gear is arranged in the groove and connected with the convex teeth in a meshed mode,and one end face of the gear is fixed to the fixing rod on the right side through glue. The picture scroll is simple in structure, the protection effect is improved through the shell, external objectsare prevented from making c