CN211750437U - Liquid crystal display with light filtering coating for electric welding mask - Google Patents

Abstract

The utility model discloses a liquid crystal display with a light filtering coating for a welding mask, which aims to solve the technical problem that the whole assembly structure of the liquid crystal display of the existing welding mask is thicker and heavier, thereby affecting the assembly and use effects of the liquid crystal display; the LCD is adhered with polaroids on two sides of an LCD cell, wherein the polaroid on the outermost side of the LCD is plated with a light filtering coating. The liquid crystal display improves the light transmission performance of the liquid crystal display by optimizing the structure level of the liquid crystal display, ensures that the liquid crystal display is lighter and more convenient on the premise of not degrading the dimming function, and improves the assembling and using effects of the liquid crystal display.

Description

Liquid crystal display with light filtering coating for electric welding mask

Technical Field

The utility model belongs to the electronic display field specifically belongs to a take LCD for electric welding face mask of light filtering cladding material.

Background

The mask for electric welding is a tool for protecting the eye safety of operators in welding and cutting operations, and can be divided into an invisible light mask and a light-operated mask, wherein the invisible light mask is a traditional mask, a dark color filter lens is arranged on the mask, infrared rays, ultraviolet rays and strong light are filtered by the lens during electric welding, so that the eyes are protected from being damaged, but because the lens cannot adjust the light, the lens needs to be moved away from the eyes frequently during use, a welding part is checked, the eyes are shielded again during electric welding, and the operation is inconvenient; the light-operated electric welding face mask is characterized in that a liquid crystal display and a light sensation control circuit are mounted on the face mask, when electric welding is conducted, the light sensation circuit receives arc light and then opens a liquid crystal display driving circuit, so that the liquid crystal display is instantly darkened by brightness to block infrared rays, ultraviolet rays and strong light, eyes are protected from being damaged, the strong light is not generated when welding is not conducted, the liquid crystal display is restored to be bright, and welding parts can be conveniently checked. At present, a light-operated welding mask gradually replaces an invariable light mask to form a mainstream of products.

When the light-operated welding mask is used for operation, a photoelectric sensor is used for detecting a strong light signal, and the transparency of an upper liquid crystal display is controlled through a control circuit, so that strong arc light generated in the welding process is blocked, and a relatively high transparent state can be recovered when the arc light disappears, so that the eye protection effect is realized; therefore, the liquid crystal display on the light-operated welding mask needs to have enough blackness when in work and has higher transparency when not in work, and can be well assembled into the welding mask. However, the basic structure of the welding mask liquid crystal display which has the functions and is convenient to assemble is thick and heavy at present, and the reason is mainly that the polarizing layer and the filter layer in the liquid crystal display structure belong to completely independent individuals, but the polarizing layer and the filter layer are indispensable parts for realizing the basic functions of the welding mask liquid crystal display, so that the whole assembly structure is thick and heavy, and the assembly and use effects are affected. The general structure is shown in fig. 1, and fig. 1 is a schematic structural diagram of a liquid crystal display and a filter assembly for a welding mask in the prior art. In the prior art, no suitable solution is provided for the problem that the assembly and use effects of the welding mask liquid crystal display are affected due to the thick structure,

the invention patent with the publication number of CN106324738A discloses a long-wave infrared filter and a preparation method thereof, but does not relate to the improvement of the structure per se; the utility model patents with publication numbers CN206193415U and CN20838853U only optimize the basic structure and the realization form of the basic functions of the lcd, and do not optimize the basic structure, so that the problem of the heavy assembly structure affecting the assembly and usage effects still exists.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a liquid crystal display with a light filtering coating for a welding mask, which aims to solve the technical problem that the whole assembly structure of the liquid crystal display of the existing welding mask is thicker and heavier, thereby influencing the assembly and use effects of the liquid crystal display; the liquid crystal display improves the light transmission performance of the liquid crystal display by optimizing the structure level of the liquid crystal display, ensures that the liquid crystal display is lighter and more convenient on the premise of not degrading the dimming function, and improves the assembling and using effects of the liquid crystal display.

(2) Technical scheme

In order to solve the technical problem, the utility model provides a such take LCD for electric welding face mask of light filtering coating, this LCD has the polaroid in the laminating of the both sides of LCD cell, and wherein, this LCD has plated the light filtering coating on the polaroid of outermost one side.

The LCD cell is a common name in the industry, and is a part of the LCD module except the backlight module, and is composed of components such as a TFT sheet, a polarizer, a color filter, a spacer, a common sheet (transparent indium tin oxide), and liquid crystal, and the LCD cell can be understood as an LCD optical film or an LCD optical unit.

In the current application, a polarizing layer and a filter layer are added to an LCD cell, and the polarizing principle of the polarizing layer is to allow only light with the vibration direction consistent with the polarization axis direction to pass through, and under the same condition, the higher the polarization degree is, the higher the contrast of the liquid crystal display is. The filter layer has the filtering principle that a required radiation wave band is selected to absorb certain wavelengths, so that natural imaging becomes darker, and an object becomes darker. In the electric welding process, when arc light penetrates through the liquid crystal display, the LCD cell quickly responds, and the polarizing layer and the filter layer act together, so that the dimming function of the liquid crystal display of the electric welding mask is realized, and the function of protecting eyes is achieved.

The liquid crystal display for the electric welding mask in the prior art comprises an LCD cell and a polaroid, belongs to a whole, the liquid crystal display and the optical filter belong to independent individuals respectively, and the liquid crystal display and the optical filter are combined through simple glue connection when the electric welding mask is assembled, so that the effects of light deflection and light filtering are achieved, and the dimming function is realized. Although the simple two-by-two combination mode can meet the basic function, the structure is thicker and the optical filter is made by adding special dye on the plastic or glass sheet, the effect is to filter the light in a certain wavelength range and play the role of a monochromator, for example, the infrared optical filter only allows red light to pass through, so the thickness, the refractive index and the light transmission performance of the optical filter can be directly influenced by the thickness, the refractive index and the light transmission performance of the plastic or glass sheet, and the assembly effect and the light transmission performance of the electric welding mask liquid crystal display are indirectly influenced.

And through the utility model discloses LCD structure after optimizing is directly to plate the active ingredient of light filter on the polaroid, forms the polaroid of taking the light filtering cladding material, and the LCD of reproduction area light filtering cladding material. The liquid crystal display is applied to a welding mask and can be made into a rectangular shape, a circular shape or any other shapes.

(3) Advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a LCD is through optimizing its self structure level, utilize to make filtering functional layer and LCD cell and polaroid unify the processing, integrate its function in an organic whole, through reducing its holistic thickness and weight, can guarantee that it can not be because of the thickness of plastics or glass piece in the light filter in the use, refracting index and light transmittance directly influence electric welding face guard LCD's thickness, refracting index and light transmittance, thereby indirectly influence electric welding face guard LCD's equipment effect and light transmittance, and improve its light transmittance, and simultaneously, guarantee that it is under the prerequisite that the function of adjusting luminance does not degrade, make it lighter and more handy, and is simple and convenient, easily assemble and use, finally promote its equipment and result of use.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a liquid crystal display and a filter assembly for a welding mask in the prior art.

Fig. 2 is a schematic structural diagram of a liquid crystal display including a light-filtering coating according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a liquid crystal display device with a filter coating according to another embodiment of the present invention.

The labels in the figures are: 1-optical filter, 2-LCD cell, 3-polaroid and 4-optical filtering coating.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following description is made for the technical solution of the present invention in the embodiments to explain the present invention clearly and completely, obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments.

The liquid crystal display is adhered with polaroids on two sides of an LCD cell, and a light filtering coating is plated on the polaroid on the outermost side of the liquid crystal display.

The preparation process of the liquid crystal display with the light filtering coating for the welding mask is as follows: 1. preparing an LCD cell, and attaching upper and lower polaroids to the LCD cell to manufacture a liquid crystal display; 2. analyzing the components of the film material of the optical filter, namely the special dye, and extracting the main film materials of the optical filter, namely germanium (Ge) and zinc sulfide (ZnS); 3. germanium (Ge) and zinc sulfide (ZnS) are alternately plated on the upper polarizer of the LCD by vacuum film deposition to combine the filter layer and the polarizer into one, thus obtaining the LCD with filter coating.

The liquid crystal display with the filtering coating for the electric welding mask can select a required radiation waveband through a germanium (Ge) and zinc sulfide (ZnS) film layer, absorb certain wavelengths, achieve the filtering effect and play a role in protecting eyes in the electric welding process.

The welding mask liquid crystal display is applied to a welding mask and can be made into a rectangle, a circle or any other shape. Meanwhile, the welding mask liquid crystal display module can be realized in a single-box mode, namely a single-liquid crystal display is used as shown in fig. 2, and can also be realized in a double-box mode, namely two liquid crystal displays are combined together for use as shown in fig. 3.

Having thus described the principal technical features and basic principles of the invention, and the advantages thereof, it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description is described in terms of various embodiments, not every embodiment includes only a single embodiment, and such descriptions are provided for clarity only, and those skilled in the art will recognize that the embodiments described herein can be combined as a whole to form other embodiments as would be understood by those skilled in the art.

Claims (2)

1. A liquid crystal display with light filtering coating for electric welding mask is prepared as sticking polaroid on two sides of LCD cell, coating light filtering coating on polaroid on outmost side of liquid crystal display.

2. The liquid crystal display with filter coating for masks according to claim 1, characterized in that it is made rectangular or circular.

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