A pressure-sensitive whiteboard and a manufacturing process of the pressure-sensitive whiteboard

Abstract

The invention discloses a pressure-sensitive white board and a manufacturing process thereof. The pressure-sensitive white board comprises a frame and a core plate. The core plate comprises a base plate, a projection film, a front conducting film and a rear conducting film. The front conducting film is pasted on the rear surface of the projection film, and the rear conducting film is pasted on the front surface of the base plate. The pressure-sensitive white board further comprises four pasting strips and four strip-shaped conductive cloths. A first conductive cloth and a second conductive cloth are respectively pasted on the upper edge and the lower edge of the rear surface of the front conducting film or close to the upper edge and the lower edge of the rear surface of the front conducting film. A third conductive cloth and a fourth conductive cloth are respectively pasted on the left edge and the right edge of the front surface of the rear conducting film. The four pasting strips are arranged at four edge portions of the base plate. The four edge portions of the projection film are adhesively bonded with the four edge portions of the base plate through the four pasting strips. The thickness of each pasting strip is 0.5-2mm. The pressure-sensitive white board is simple in structure, low in cost, stable in quality and suitable for mass production.

Description

[technical field] [0001] The invention relates to an electronic whiteboard, in particular to a pressure-sensitive whiteboard and a manufacturing process of the pressure-sensitive whiteboard. [Background technique] [0002] The pressure-sensitive whiteboard mainly includes three parts: a projection surface, a positioning structure, and a supporting structure. [0003] 1. Projection surface: Realized with white projection film. [0004] 2. Positioning structure: Based on the conductive film with air layer insulation in the middle of the front and rear layers, the left and right edges of the front film are respectively connected to the wires through conductive cloth, and the upper and lower edges of the rear film are respectively connected to the wires through conductive cloth. When pressing the front conductive film At a certain point, the voltage applied to the connecting wire of the front film and the connecting wire of the back film goes through the shortest path, (the res...

AI Technical Summary

Problems solved by technology

[0008] Projection film 2 uses angled aluminum (or angle iron) to tighten with leverage. The labor intensity of workers is relatively high, and the tension control basically depends on experience. It is only suitable for small-scale production, and the quality of mass production cannot be guaranteed.

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