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Electric welding goggles

A technology of goggles and liquid crystal light valve, applied in goggles, ophthalmic surgery and other directions, can solve the problems of uneven viewing angle characteristics of liquid crystal displays, unable to meet the requirements of eye protection, affecting the performance of welding goggles, etc., to protect eyes and body. Health, high safety effect

Active Publication Date: 2013-07-03
TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] see figure 1 , figure 1 It is a structural schematic diagram of the first embodiment of the electric welding goggles provided by the present invention. The welding goggles 2 include a first liquid crystal light valve 20 , a second liquid crystal light valve 22 and a third liquid crystal light valve 24 which are stacked sequentially from bottom to top. Wherein a first adhesive layer 21 is arranged between the first liquid crystal light valve 20 and the second liquid crystal light valve 22, so as to bond the first liquid crystal light valve 20 and the second liquid crystal light valve 22 together; the second liquid crystal light valve A second adhesive layer 23 is provided between the second liquid crystal light valve 22 and the third liquid crystal light valve 24 to bond the second liquid crystal light valve 22 and the third liquid crystal lig...

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Abstract

The invention discloses electric welding goggles, which comprise a first liquid crystal light valve, a second liquid crystal light valve and a third liquid crystal light valve superposed sequentially. The electric welding goggles are characterized in that: the first liquid crystal light valve and the second liquid crystal light valve are positive liquid crystal light valve, and the twisting directions of the liquid crystal layers of the first liquid crystal light valve and the second liquid crystal light valve are opposite; and the third liquid crystal light valve is one of a negative liquid crystal light valve and a dye type liquid crystal light valve. The electric welding goggles have the advantages of high visual angle uniformity, low scattering and automatic protection in power failure.

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, liquid crystal light valve goggles 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 different angles, sometime...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/02
Inventor 刘小建刘金权
Owner TIANMA MICRO ELECTRONICS CO LTD
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