Electric welding safety goggles

Abstract

The invention discloses a pair of electric welding safety goggles, which comprises a first base plate, a second base plate, a third base plate and a fourth base plate, wherein the first base plate and the second base plate are in opposite arrangement, the third base plate and the fourth base plate are in opposite arrangement, the second base plate and the fourth base plate are in adjacent arrangement, the electric welding safety goggles also comprise a first liquid crystal layer, a second liquid crystal layer, a first polaroid, a second polaroid, a third polaroid and a fourth polaroid, the first liquid crystal layer is arranged between the first base plate and the second base plate, the second liquid crystal layer is arranged between the third base plate and the fourth base plate, the first polaroid is arranged on the surface of the first base plate, the second polaroid is arranged on the surface of the second base plate, the third polaroid is arranged on the surface of the third base plate, the fourth polaroid is arranged on the surface of the fourth base plate, the first liquid crystal layer and the second liquid crystal layer are in twisting arrangement in reverse directions, in addition, the view angle direction difference is 180 degrees, and in addition, the twisting angle range of the first liquid crystal layer and the second liquid crystal layer is 72 to 88 degrees. The electric welding safety goggles have the characteristics that the view angle uniformity is high, the diffuse reflection is low, and the manufacture process is simple.

Description

technical field [0001] The invention belongs to the field of electric welding, in particular to an electric welding goggle made of a liquid crystal box. Background technique [0002] The welding goggles made of single-pixel liquid crystal display (liquid crystal light valve) not only have a good protective effect on human eyes, but also can be easily worn on the head, so that the operator can weld with both hands, and the operation is more convenient. Therefore, welding goggles with liquid crystal light valve technology are gradually replacing traditional black glass welding masks. [0003] Comprehensive consideration of various special requirements of welding goggles, TN mode LCD is most suitable for manufacturing welding goggles. However, the TN mode liquid crystal display has viewing angle dependence. When displaying different gray scales, the long axis of the liquid crystal molecules is different from the angle of the glass substrate. When users watch the screen from di...

AI Technical Summary

Problems solved by technology

That is, the viewing angle characteristics of the TN mode liquid crystal display are very uneven, and the gray scale changes gradually with different viewing angles. The gray scale of some viewing angles cannot meet the requirements of eye protection, which seriously affects the performance of welding goggles.

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