Display device for facilitating painting teaching demonstration

Abstract

The invention discloses a display device for facilitating painting teaching demonstration. The display device comprises a base; a light-emitting diode (LED) display screen is fixedly installed on thetop of the base; a writing board is arranged at the front of the base; a camera is installed at the front of the base and above the writing board by means of a fixed rack; two first fixed blocks and two second fixed blocks are respectively and symmetrically installed at the front of the base and at the two sides of the writing board; a first screw rod is installed between the first fixed blocks bymeans of a first rolling bearing, and a second screw rod is installed between the second fixed blocks by means of a second rolling bearing; the exterior of the first screw rod is in threaded connection with one end of a blackboard eraser by means of a first screw nut, and the exterior of the second screw rod is in threaded connection with the other end of a blackboard eraser by means of a secondscrew nut. The display device for facilitating painting teaching demonstration is convenient for the field painting of students and the demonstration of a teacher; furthermore, the writing board can be rapidly wiped, so that the painting efficiency is effectively increased; therefore, the display device for facilitating painting teaching demonstration is worth popularizing and popularizing.

Description

technical field [0001] The invention relates to the technical field of teaching tools, in particular to a display device for teaching and demonstration of painting. Background technique [0002] Teaching aids are the general term for all kinds of utensils used by students to intuitively and visually understand the teaching content and the utensils used by teachers in teaching, referred to as teaching aids. Teaching aids can improve students' interest in learning, enrich perceptual knowledge, help form clear concepts, and develop students' observation and thinking abilities. It is generally divided into three categories: ordinary teaching aids, special teaching aids, and children's teaching aids. In the teaching process, especially in the painting class, sometimes in order to stimulate students' interest in learning, the teacher will display the students' paintings for students to appreciate and learn. However, the existing display devices require students to draw the painti...

AI Technical Summary

Problems solved by technology

In the teaching process, especially in the painting class, sometimes in order to stimulate students' interest in learning, the teacher will display the students' paintings for students to appreciate and learn. However, the existing display devices require students to draw the paintings in advance and paste them on the display. Put it on the board for students to appreciate and learn, but this method is not convenient for students to draw on the spot, nor is it convenient for the teacher to demonstrate. At the same time, the existing teaching demonstration display device needs to be manually wiped and cleaned after painting, which affects the efficiency of painting. Therefore, a new method is proposed. A display device that is convenient for painting teaching and demonstration

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