WO2019172534A1

WO2019172534A1 - Etching method for liquid crystal panel and etching apparatus for liquid crystal panel

Info

Publication number: WO2019172534A1
Application number: PCT/KR2019/001490
Authority: WO
Inventors: 이경찬
Original assignee: (주)코텍
Priority date: 2018-03-07
Filing date: 2019-02-07
Publication date: 2019-09-12
Also published as: KR20190105958A

Abstract

Disclosed is an invention relating to an etching method for a liquid crystal panel and an etching apparatus for a liquid crystal panel. An etching method for a liquid crystal panel, according to the present invention, comprises the steps of: setting, for the liquid crystal panel, a non-etching part, which is not to be etched, and an etching part, which is to be etched; providing a protective part in a shape of encompassing the non-etching part; etching the liquid crystal panel by supplying an etchant to the etching part; and changing the direction in which the etchant flows down by rotating the liquid crystal panel.

Description

Etching Method for Liquid Crystal Panel and Etching Device for Liquid Crystal Panel

The present invention relates to an etching method for a liquid crystal panel and an etching apparatus for a liquid crystal panel, and more particularly, an etching method for an liquid crystal panel and an etching apparatus for an liquid crystal panel capable of uniformizing the thickness of an etching surface by rotating the liquid crystal panel during an etching process. It is about.

Due to the development of the information society, display devices capable of displaying information have been actively developed. The display device includes a liquid crystal display device, an organic electro-luminescence display device, a plasma display panel, and a field emission display device.

Among these, the liquid crystal display device has advantages such as light weight, small size, low power consumption, and full color video, and is widely applied to mobile phones, navigation, monitors, and televisions.

The liquid crystal display displays an image corresponding to the video signal by adjusting the light transmittance of the liquid crystal cells on the liquid crystal panel. Typically, the liquid crystal panel includes a lower substrate, an upper substrate, and a liquid crystal layer interposed between these substrates.

As the liquid crystal display device, a TFT-LCD using a thin film transistor (TFT) as a switching element is mainly used. A plurality of display signal lines, such as a gate line, a data line, a plurality of thin film transistors, and a pixel electrode, are formed on a lower substrate of two substrates of the liquid crystal panel disposed to face each other, and a color filter and a common electrode are formed on an upper substrate of the two substrates. Is formed.

Since the liquid crystal panel is generally manufactured in a flat shape, when a curved display is required, an etching liquid is sprayed onto the liquid crystal panel to thin the liquid crystal panel to a predetermined thickness and then bend the liquid crystal panel.

Conventionally, when the etching liquid is injected while the liquid crystal panel is upright, the etching liquid flows down the liquid crystal panel and the etching amount is different from the upper side and the lower side of the liquid crystal panel, so that the thickness of the etching surface is not uniform. In addition, there is a problem in that a dent occurs in the lower side of the liquid crystal panel by the etching liquid flowing down to the lower side of the liquid crystal panel. Therefore, there is a need for improvement.

Background art of the present invention is Republic of Korea Patent Registration No. 10-1333770 (Nov. 21, 2013 registered, name of the invention: the etching apparatus, the curved display panel manufacturing apparatus including the same, the curved display panel manufacturing method using the same, and thereby Manufactured curved display panel).

The present invention has been made to improve the above problems, and an object of the present invention is to provide a liquid crystal panel etching method and a liquid crystal panel etching method capable of equalizing the thickness of the etching surface by rotating the liquid crystal panel during the etching process. It is.

Etching method for a liquid crystal panel according to the present invention comprises: setting an etched portion and the non-etched portion is not etched in the liquid crystal panel, the step of installing a protective portion in a shape surrounding the non-etched portion, And supplying and etching the liquid crystal panel, and rotating the liquid crystal panel to change the direction in which the etchant flows.

In addition, the liquid crystal panel is characterized in that the top and bottom are rotated so as to be reversed.

In addition, the liquid crystal panel is rotated together with the first tray unit in a state in which the liquid crystal panel is mounted on the first tray unit having the mounting hole.

In addition, in the state in which the liquid crystal panel is inserted into the mounting hole portion, the protection portion located on the side of the first tray portion is fixed to the first tray portion by the fixing member.

In addition, the protection portion provided on the edge of the liquid crystal panel is inserted into the holding portion fixed to the second tray portion, it characterized in that the rotation with the second tray portion.

In addition, the second tray portion is provided with a plurality of holding portions, characterized in that the plurality of liquid crystal panels provided with the protection portion is provided in the second tray portion.

In addition, the etched portion and the non-etched portion are alternately positioned along the edge of the liquid crystal panel, and the etched edge portion is characterized by forming an uneven shape.

Etching apparatus for a liquid crystal panel according to the present invention comprises: a first tray having a protection portion surrounding the non-etched portion of the liquid crystal panel, a mounting hole portion into which the liquid crystal panel is inserted, and a first tray in a state where the liquid crystal panel is inserted into the mounting hole portion; And a fixing member configured to fix the protection part located at the side of the part to the first tray part, wherein the liquid crystal panel is rotated together with the first tray part to etch the etching part.

In addition, the protection unit is characterized in that molded in a material having acid resistance.

In addition, the non-etched portion that is provided with the protection portion along the edge of the liquid crystal panel is characterized in that the etching portion is not installed is located alternately.

In addition, the liquid crystal panel and the first tray unit are coupled in a standing state, and the first tray unit is rotated so that the top and bottom of the liquid crystal panel are inverted.

Etching apparatus for a liquid crystal panel according to the present invention includes: a protective portion surrounding the non-etched portion of the liquid crystal panel and a second tray portion having a plurality of gripping portions to which the protective portion is inserted and fixed, the protective portion provided on both sides of the liquid crystal panel It is characterized in that it is rotated together with the second tray portion in a state of being inserted into the holding portion.

In addition, the gripping portion which is installed on both sides of the liquid crystal panel is made of a material having elasticity, characterized in that it comprises a mounting groove for inserting the protection portion.

In the liquid crystal panel etching method and the liquid crystal panel etching apparatus according to the present invention, since the liquid crystal panel is rotated during the etching process to change the flow direction of the etchant, the thickness of the etching surface may be uniform to reduce the defective rate of the product.

1 is a flowchart illustrating an etching method for a liquid crystal panel according to an exemplary embodiment of the present invention.

2 is a view illustrating a state in which an etchant is injected into the liquid crystal panel according to the exemplary embodiment of the present invention.

3 is a view illustrating a state in which an etchant flows down along the liquid crystal panel according to an exemplary embodiment of the present invention.

FIG. 4 is a view illustrating a state in which an etchant flows down by rotating a liquid crystal panel according to an exemplary embodiment of the present invention.

5 is a perspective view illustrating an etching apparatus for a liquid crystal panel according to an embodiment of the present invention.

6 is a perspective view illustrating a state in which a liquid crystal panel is fixed to a first tray unit according to an embodiment of the present invention.

7 is a perspective view illustrating a state in which a first tray unit is installed in a tray mounting unit according to an embodiment of the present invention.

8 is a perspective view illustrating an etching apparatus for a liquid crystal panel according to another embodiment of the present invention.

9 is a perspective view illustrating a liquid crystal panel separated from a second tray unit according to another exemplary embodiment of the present invention.

FIG. 10 is a view illustrating a protection unit installed only in a non-etching unit provided in an edge of a liquid crystal panel according to another exemplary embodiment of the present invention.

FIG. 11 is a view illustrating a state in which an etching portion and a non-etching portion are alternately formed at an edge portion of a liquid crystal panel according to another exemplary embodiment of the present invention.

12 is a cross-sectional view of the liquid crystal panel bent according to another embodiment of the present invention.

Hereinafter, an etching method for a liquid crystal panel and an etching apparatus for a liquid crystal panel according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a flow chart illustrating an etching method for a liquid crystal panel according to an embodiment of the present invention, Figure 2 is a view showing a state in which the etching liquid is injected into the liquid crystal panel according to an embodiment of the present invention, Figure 3 4 is a view illustrating a state in which an etchant flows down along the liquid crystal panel according to an exemplary embodiment of the present invention, and FIG. 4 illustrates a state in which the direction in which the etchant flows down is rotated by rotating the liquid crystal panel according to the exemplary embodiment of the present invention. 5 is a perspective view illustrating an etching apparatus for an LCD panel according to an embodiment of the present invention, and FIG. 6 is a view illustrating a state in which a liquid crystal panel is fixed to a first tray unit according to an embodiment of the present invention. 7 is a perspective view illustrating a state in which a first tray unit is installed in a tray mounting unit according to an embodiment of the present invention, and FIG. 8 is a perspective view illustrating an etching apparatus for an liquid crystal panel according to another embodiment of the present invention. And 9 is a perspective view illustrating a state in which a liquid crystal panel according to another exemplary embodiment of the present invention is separated from a second tray unit, and FIG. 10 is a non-formulation provided at an edge of a liquid crystal panel according to another exemplary embodiment of the present invention. FIG. 11 is a view illustrating a state in which a protection part is installed only in each part, and FIG. 11 is a view illustrating a state in which an etching part and a non-etching part are alternately formed at an edge of a liquid crystal panel according to another exemplary embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a curved state of a liquid crystal panel according to another exemplary embodiment of the present invention. FIG.

As shown in FIGS. 2 to 7, the etching apparatus 100 for a liquid crystal panel according to an exemplary embodiment of the present invention includes a protective part 40 surrounding the non-etching portion 20 of the liquid crystal panel 1, and a liquid crystal. Located on the side of the first tray part 50 in a state where the liquid crystal panel 1 is inserted into the first tray part 50 and the mounting hole part 52 including the mounting hole part 52 into which the panel 1 is inserted. And a fixing member 55 for fixing the protection part 40 to the first tray part 50. The liquid crystal panel 1 is rotated together with the first tray part 50 to etch the etching part 10. This is characterized in that it is made.

The liquid crystal panel 1 may be variously modified within a technical concept of contacting a plurality of glasses. The liquid crystal panel 1 according to the exemplary embodiment is coupled in a state where the first substrate 3 and the second substrate 5 face each other, and the liquid crystal layer is interposed between the first substrate 3 and the second substrate 5. Is provided.

According to an embodiment, the first substrate 3 is a TFT substrate and the second substrate 5 is a CF substrate. The first substrate 3 and the second substrate 5 are spaced at a set interval, and a liquid crystal is injected between the first substrate 3 and the second substrate 5 to form a liquid crystal layer. The liquid crystal layer provided in the liquid crystal panel 1 is sealed with a sealing material.

The liquid crystal panel 1 is etched to a predetermined thickness using a method of spraying or applying the etchant 30 to the liquid crystal panel 1. In this case, the non-etched portion 20 in which the etching is not performed in the liquid crystal panel 1 and the etching portion 10 in which the etching is performed are set.

The non-etched portion 20 includes at least one of the edge portion 2 formed on one side and the other side of the liquid crystal panel 1. Since the liquid crystal panel 1 has a rectangular shape, four edges 2 on one side of the liquid crystal panel 1 are upper, lower, left, and right, and four other edges 2 on the other side of the liquid crystal panel 1 are also provided. At least one or more of the edge portion 2 of one side surface and the other side of the liquid crystal panel 1 is set as the non-etching portion 20.

In the liquid crystal panel 1 according to the exemplary embodiment, the left and right edge portions 2 on one side and the other side and the upper and lower edge portions 2 are set to the non-etching portion 20. That is, the edge portion 2 of the liquid crystal panel 1 is set as the non-etched portion 20, and the inside of the non-etched portion 20 is set as the etching portion 10.

The non-etched portion 20 of the liquid crystal panel 1 forms a band having a thickness set along the edge portion 2 of the liquid crystal panel 1 so that a black matrix that blocks light of the backlight is left. For example, the non-etched portion 20 may be set by forming a portion not etched by a width set along the left and right sides and the upper and lower edge portions 2 of one side and the other side of the liquid crystal panel 1. The non-etching unit 20 may include a driving circuit unit (not shown) connected to the liquid crystal panel 1.

When a separate polarizing film (POL: Polaroid Film) is installed in the liquid crystal panel 1, the polarizing film is removed from the liquid crystal panel 1, and then the protection part 40 is installed and etched. After etching is completed, a polarizing film is installed on the outside of the etching unit 10. The polarizing film is a film having a property of passing or blocking vertical or horizontal polarization of incident light.

As illustrated in FIGS. 2 to 4, the protection part 40 is formed of a material having acid resistance in a technical concept of preventing the etching solution 30 from penetrating into the non-etching part 20 during an etching operation. The protection part 40 according to an embodiment uses polyvinyl chloride (PVC).

In addition, the protection part 40 may be a rectangular frame-shaped tape covering the non-etching part 20, and may be an integrated member covering both one side and the other side of the liquid crystal panel 1. Alternatively, the first masking member may be configured to be attached to one side of the liquid crystal panel 1, and the second masking member may be attached to the other side of the liquid crystal panel 1. The first masking member and the second masking member are attached to both sides of the liquid crystal panel 1, respectively, and the edges of the first masking member and the second masking member are joined to each other so that the etchant 30 penetrates into the non-etched portion 20. To prevent damage. The protection part 40 is formed in the shape of the letter “W” surrounding the outside of the etching part 10, and has a square band shape having a set width.

As shown in FIGS. 5 to 7, the first tray part 50 has a plate shape having a mounting hole 52 therein, and is mounted to the tray mounting part 60 in an upright state. The mounting hole 52 is formed to be the same as or larger than the liquid crystal panel 1. The liquid crystal panel 1 in which the protection part 40 is installed is inserted into the mounting hole part 52 of the first tray part 50, and the protection part 40 connected to the liquid crystal panel 1 is the first tray part 50. Is located on the side of the.

The protection part 40 positioned on the side of the first tray part 50 is fixed to the first tray part 50 by the fixing member 55. Fixing member 55 may be used a variety of tapes, including masking tape. The liquid crystal panel 1 and the first tray part 50 are coupled in a standing state, and the first tray part 50 rotates so that the top and bottom of the liquid crystal panel 1 are reversed.

The first tray part 50 on which the liquid crystal panel 1 is mounted is mounted in a standing state on the tray mounting part 60. The tray mounting unit 60 is mounted in a state in which the first tray unit 50 on which the liquid crystal panel 1 is mounted is placed upright, and the second tray unit together with the liquid crystal panel 1 at a predetermined angle such as 180 degrees as necessary. Rotate 70. The worker can directly rotate the tray mounting unit 60, and an automated device including a robot arm can rotate the tray mounting unit 60. Alternatively, various modifications may be made, such as rotating only the first tray unit 50 on which the liquid crystal panel 1 is mounted.

Tray mounting portion 60 according to an embodiment includes a frame member 62, the mounting bracket 64 and the insertion groove (66). The frame member 62 forms a skeleton of the tray mounting part 60 and is located outside the first tray part 50. The mounting bracket 64 is fixed to the frame member 62 installed in a fixed state on both sides of the first tray part 50. The mounting bracket 64 is installed in a horizontal direction, and a plurality of insertion grooves 66 are formed in the mounting bracket 64 for inserting side surfaces of the first tray part 50.

The mounting bracket 64 is provided in plurality, and is installed on the upper side and the lower side of the frame member 62, respectively. Therefore, both sides of the first tray part 50 into which the liquid crystal panel 1 is inserted are supported by the mounting bracket 64 while being inserted into the insertion groove 66 of the mounting bracket 64 and standing up. In this case, the first tray part 50 may be coupled to the insertion groove 66 by interference fit. Alternatively, the material of the mounting bracket 64 having the insertion groove 66 is made of elastic material, so that the first tray 50 is elastically coupled to the mounting bracket 64 having the insertion groove 66. Can be. Therefore, even when the tray mounting part 60 is rotated 180 degrees, it is possible to prevent the first tray 50 from falling off the tray mounting part 60.

8 and 9, the etching apparatus 110 for a liquid crystal panel according to another exemplary embodiment of the present invention may include a protection part 40 and a protection part surrounding the non-etching part 20 of the liquid crystal panel 1. And a second tray part 70 having a plurality of grip parts 74 into which the 40 is inserted and fixed. The protection parts 40 provided on both edges of the liquid crystal panel 1 are grip parts 74. It is characterized in that it is rotated together with the second tray unit 70 in the inserted state.

The second tray part 70 includes a tray body 72 having an upper side opening, and a grip part 74 provided inside the tray body 72 facing the protection part 40. The gripping portion 74 installed on both sides of the liquid crystal panel 1 is made of a material having elasticity and includes a mounting groove portion 76 into which the protection portion 40 is inserted.

Accordingly, since the protection part 40 mounted on the liquid crystal panel 1 moves downward along the grip part 74 and is fixed to the grip part 74, the plurality of liquid crystal panels 1 are located inside the tray body 72. This can be installed one after the other. In addition, since the holding part 74 has elasticity and elastically pressurizes both sides of the liquid crystal panel 1, the first tray part 50 may be the second tray part 70 even when the second tray part 70 is rotated 180 degrees. ) Can be prevented from falling.

The etchant 30 may be contained in a water tank, and may be sprayed on one side or both sides of the liquid crystal panel 1 through the injection nozzle 82 of the injection unit 80.

As shown in FIGS. 10 to 12, the edge portion 2 of the liquid crystal panel 1 according to another embodiment of the present invention includes a non-etching portion 20 and a protection portion 20 in which a protection portion 41 is installed. Etch portions 10, which are not provided with 41, are alternately located along the rim 2. Therefore, the protection part 41 is also installed only on the non-etching part 20 located in the edge part 2, and the protection part 41 is not installed in the etching part 10 located in the edge part 2.

Therefore, the etching portion 10 and the non-etching portion 20 are alternately formed on the edge portion 2 of the liquid crystal panel 1 where the etching is performed, and the thickness of the etching portion 10 is thinner than the thickness of the non-etching portion 20. Is formed. A concave-convex shape is formed along the edge portion 2, and when the liquid crystal panel 1 is curved in a curved shape, the bending operation of the liquid crystal panel 1 can be more easily performed by the concave-convex shape of the edge portion 2. have.

Hereinafter, an etching method for a liquid crystal panel according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, the etching method for a liquid crystal panel according to an embodiment of the present invention, the non-etched portion 20 is not etched in the liquid crystal panel 1 and the etching portion 10 is etched (S10) In the exemplary embodiment of the present invention, the liquid crystal panel 1 is set as the etching unit 10 and the non-etching unit 20. The non-etched portion 20 has a rectangular band shape.

Alternatively, as illustrated in FIGS. 10 to 12, the etching unit 10 and the non-etching unit 20 may be alternately set along the edge portion 2 of the liquid crystal panel 1. When the etching unit 10 and the non-etching unit 20 are alternately set along the edge portion 2 of the liquid crystal panel 1, the protection unit 41 is provided only in the non-etching unit 20.

And, as shown in Figure 2 and 5, has a protection unit installation step (S20) for installing the protection unit 40 in a shape surrounding the non-etching unit 20. The protective part 40, which is a masking film made of a single shape, is wrapped around the outside of the non-etching part 20, and is adhered to the non-etching part 20. When a separate polarizing film (POL: Polaroid Film) is installed in the liquid crystal panel 1, after removing the polarizing film from the liquid crystal panel 1, the protective part 40, which is a masking film, is formed on the non-etched portion 20 of the liquid crystal panel 1. Install).

When the installation of the protection part 40 is completed, the etching part 30 is sprayed on the etching part 10 to etch the liquid crystal panel 1 to have an etching step (S30). The etchant 30 injected from the injection nozzle 82 of the injection unit 80 is injected into the liquid crystal panel 1 provided with the protection unit 40. The etchant 30 sprayed on the outside of the liquid crystal panel 1 flows downward along the liquid crystal panel 1 to etch the etching unit 10.

As shown in FIG. 3, since the lower side of the etching unit 10 is etched more than the upper side by the etchant 30 flowing along the liquid crystal panel 1, one side of the etching unit 10 (the upper side of FIG. 3). The first thickness length T1, which is a thickness, is longer than the second thickness length T2, which is the thickness of the other side (the lower side of FIG. 3) of the etching unit 10.

As shown in FIG. 4, the liquid crystal panel rotating step (S40) of rotating the liquid crystal panel 1 to change the direction in which the etchant 30 flows down is included. When the time required for the etching process is 100, the liquid crystal panel 1 is rotated 180 degrees in a time range of about 50 degrees. If the liquid crystal panel 1 continues to be etched while being rotated such that the top and bottom are inverted, the flow of the etchant 30 moving along the liquid crystal panel 1 becomes the opposite direction. Therefore, the entire area of the liquid crystal panel 1 is etched to a uniform thickness.

When the liquid crystal panel 1 is rotated, only the liquid crystal panel 1 may be rotated, and the liquid crystal panel 1 is mounted in a state where the liquid crystal panel 1 is mounted in a separate device to prevent damage to the liquid crystal panel 1. Can be rotated.

The liquid crystal panel 1 according to the exemplary embodiment is rotated together with the first tray part 50 in a state in which the liquid crystal panel 1 is mounted in the first tray part 50 having the mounting hole part 52. In the state where the liquid crystal panel 1 is inserted into the mounting hole 52, the protection part 40 positioned on the side of the first tray part 50 is connected to the first tray part 50 by the fixing member 55. It is fixed.

That is, only the liquid crystal panel 1 is positioned inside the mounting hole 52 of the first tray part 50 while the protection part 40 is installed along the edge part 2 of the liquid crystal panel 1. The protection part 40 positioned at the side of the part 50 is fixed to the first tray part 50 by the fixing member 55 using the fixing tape.

When the first tray unit 50 is rotated, the liquid crystal panel 1 mounted inside the first tray unit 50 is also rotated, so that only the liquid crystal panel 1 is rotated alone. The possibility of breakage is significantly lowered.

The first tray part 50 may be rotated alone, and the plurality of first tray parts 50 may be rotated together in a state in which the plurality of first tray parts 50 are mounted on the tray mounting part 60. . Alternatively, the first tray part 50 to be rotated in the tray mounting part 60 may be extracted, rotated, and then remounted in the tray mounting part 60 to proceed with etching.

As shown in FIG. 8 and FIG. 9, the protection part 40 installed at the edge of the liquid crystal panel 1 is inserted into the holding part 74 and fixed to the second tray part 70. It may be rotated together with the part 70. The second tray part 70 is provided with a plurality of holding parts 74, and the liquid crystal panel 1 provided with the protection part 40 is provided in the second tray part 70, so that the second tray part ( The liquid crystal panel 1 may be rotated at the same time by the rotation of 70. Alternatively, the liquid crystal panel 1 to be rotated in the second tray part 70 may be extracted, rotated, and then remounted in the second tray part 70 to proceed with etching.

Meanwhile, as illustrated in FIGS. 10 to 12, the etching unit 10 and the non-etching unit 20 are alternately positioned along the edge portion 2 of the liquid crystal panel 1, and the edge portion 2 where the etching is completed. Form irregularities. Therefore, when the liquid crystal panel 1 is bent at a set curvature, the edge portion 2 may be easily bent, and the possibility of breakage of the liquid crystal panel 1 may be lowered.

As described above, according to the present invention, since the liquid crystal panel 1 is rotated during the etching process to change the flow direction of the etchant 30, the thickness of the etching surface may be uniform to reduce the defective rate of the product. If etching is performed without etching the liquid crystal panel 1, a deviation of 10 to 15% occurs compared to the set thickness, but when etching by rotating the liquid crystal panel 1 by 180 degrees, the thickness of the etching part 10 is performed. Can be homogenized. Therefore, the etching solution 30 flows downward and excessively etches only the liquid crystal panel 1 positioned at the lower side so that the dent occurs in the liquid crystal panel 1 facing the protection part 40 and the protection part 40 is liquid crystal. The phenomenon of leaving the panel 1 can be prevented.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. will be. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

Claims

Setting an unetched portion and an etched portion that are not etched in the liquid crystal panel;

Installing a protective part in a shape surrounding the non-etched part;

Etching the liquid crystal panel by supplying an etchant to the etching unit; And

Rotating the liquid crystal panel to switch the direction in which the etching liquid flows down; etching method for a liquid crystal panel comprising a.
The method of claim 1,

The liquid crystal panel etching method of the liquid crystal panel, characterized in that rotated to be reversed.
The method of claim 2,

And the liquid crystal panel is rotated together with the first tray unit in a state in which the liquid crystal panel is mounted in a first tray unit having a mounting hole.
The method of claim 3, wherein

And the protection part positioned on the side of the first tray part in the state where the liquid crystal panel is inserted into the mounting hole part is fixed to the first tray part by a fixing member.
The method of claim 2,

And the protection part installed at the edge of the liquid crystal panel is rotated together with the second tray part while being inserted into the holding part and fixed to the second tray part.
The method of claim 5,

The second tray portion is provided with a plurality of holding portions, the liquid crystal panel etching method characterized in that the plurality of the liquid crystal panel provided with the protection portion is provided in the second tray portion.
The method of claim 1,

And the etching portion and the non-etching portion are alternately positioned along the edge portion of the liquid crystal panel, and the edge portion where the etching is completed forms an uneven shape.
A protective part surrounding the non-etched part of the liquid crystal panel;

A first tray unit having a mounting hole into which the liquid crystal panel is inserted; And

And a fixing member configured to fix the protection part positioned at a side of the first tray part to the first tray part in a state where the liquid crystal panel is inserted into the mounting hole.

Etching apparatus for a liquid crystal panel, characterized in that the liquid crystal panel is rotated together with the first tray portion to etch the etching portion.
The method of claim 8,

Etching apparatus for a liquid crystal panel, characterized in that the protection portion is formed of a material having acid resistance.
The method of claim 8,

And an etched portion in which the protective portion is installed and an etched portion in which the protective portion is not installed are alternately positioned along an edge of the liquid crystal panel.
The method of claim 8,

The liquid crystal panel and the first tray unit is coupled in a standing state, the liquid crystal panel etching apparatus, characterized in that the first tray unit is rotated so that the top and bottom of the liquid crystal panel is reversed.
A protective part surrounding the non-etched part of the liquid crystal panel; And

And a second tray part having a plurality of holding parts into which the protection part is inserted and fixed.

Etching apparatus for the liquid crystal panel, characterized in that the protective portion provided on both edges of the liquid crystal panel is rotated together with the second tray portion in the state of being inserted into the holding portion.
The method of claim 12,

The gripping portion which is installed on both sides of the liquid crystal panel is made of a material having elasticity, and the liquid crystal panel etching apparatus characterized in that it comprises a mounting groove for inserting the protective portion.