KR102417118B1 - Tray and method for manufacturing the tray - Google Patents

Abstract

An embodiment of the present invention provides a tray including a seating area on which a panel is mounted, wherein the tray is formed on at least a base corresponding to the seating area and a surface of the base corresponding to the seating area and facing the panel. Disclosed is a tray comprising a facing layer facing the panel when the panel is seated on the tray and containing at least one selected from the group consisting of a fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound.

Description

Tray and method for manufacturing the tray

Embodiments of the present invention relate to trays.

In a manufacturing process of an electric device such as a display device or a semiconductor component, a tray is sometimes used for process efficiency.

In particular, during the manufacturing process of a display device such as an LCD device or an OLED device, some steps of the manufacturing process may be performed after the liquid crystal display device panel or the organic light emitting device panel is seated on a tray, thereby improving the display device manufacturing efficiency.

On the other hand, various organic materials or adhesive materials are used in the display manufacturing process. For example, OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) can be used.

During the display manufacturing process, adhesives such as OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) and other organic materials may remain in the tray, and these remaining organic materials are repeatedly installed after the panel is continuously placed on the tray. It may contaminate the panel or cause a defect.

Embodiments of the present invention can provide a tray with excellent durability and reducing contamination of the panel.

An embodiment of the present invention provides a tray including a seating area on which a panel is mounted, wherein the tray is formed on at least a base corresponding to the seating area and a surface of the base corresponding to the seating area and facing the panel. Disclosed is a tray comprising a counter layer facing the panel when the panel is seated on the tray and containing at least one selected from the group consisting of a fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound.

In this embodiment, the fluorine-based compound contained in the counter layer may contain polytetrafluoroethylene (PTFE), a fluorine-based acrylic polymer, or a perfluorinated alkyl polymer.

In this embodiment, the molybdenum-based compound contained in the counter layer may contain MoS2.

In this embodiment, the silicone-based compound contained in the counter layer may contain polyether-modified hydroxy polydimethylsiloxane.

In this embodiment, the olefin-based compound contained in the counter layer may contain modified paraffin wax or polyethylene wax.

The present embodiment may further include a protrusion formed to correspond to at least the seating area and protruding toward the panel when the panel is seated on the tray, and a groove adjacent to the protrusion.

In this embodiment, the groove may be formed to be spaced apart from the panel when the panel is seated on the tray.

In the present embodiment, it may further include a partition wall formed around the seating area.

The present embodiment may further include a step portion formed between the partition wall portion and the seating area.

In the present embodiment, the base may further include a protective layer formed on a surface opposite to the surface facing the opposing layer among the surfaces of the base.

In this embodiment, the base may include a plurality of layers.

In this embodiment, the opposite layer may further contain a binder or an antistatic agent.

Another embodiment of the present invention is a tray including a seating area on which a panel is mounted, wherein the panel is formed on at least a base corresponding to the seating area and a surface of the base corresponding to the seating area and facing the panel. and a counter layer containing a material having a surface tension less than that of OCR or OCA.

Another embodiment of the present invention is a method of manufacturing a tray including a seating area on which a panel is mounted. The method for manufacturing the tray includes at least forming a base corresponding to the seating area and corresponding to the seating area. and one or more selected from the group consisting of a fluorine-based compound, a molybdenum-based compound, a silicone-based compound, and an olefin-based compound, is disposed on the surface of the base facing the panel to face the panel when the panel is seated on the tray Disclosed is a method for manufacturing a tray including forming a counter layer.

In this embodiment, the forming of the counter layer comprises at least one material selected from the group consisting of the fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound, a binder or an antistatic agent, and a coating layer comprising a solvent. It may include the steps of applying to one surface of the base and drying and curing the coating layer.

In this embodiment, the coating solution contains 0.1 to 5% by weight of one or more materials selected from the group consisting of the fluorine-based compound, molybdenum-based compound, silicon-based compound, and olefin-based compound, 0.1 to 30% by weight of the binder, 5 to 35% by weight of the antistatic agent weight percent and solvent from 30 to 94.8 weight percent.

In the present embodiment, the method further includes forming at least a protrusion formed to correspond to the seating area and protruding toward the panel when the panel is seated on the tray and a groove adjacent to the protrusion, wherein the protrusion and the groove may be formed in the vacuum forming step.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

Embodiments of the present invention may provide a tray with improved antistatic properties and release properties.

In addition, through this, a separate additional process, that is, for example, a coating layer forming process, etc. can be omitted, so that the efficiency of the manufacturing process can be improved. In addition, it is possible to provide a separate additional process, that is, for example, a manufacturing process that improves durability compared to a case in which a coating layer is formed.

1 is a cross-sectional view schematically showing a tray according to an embodiment of the present invention.
2 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.
3 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.
4 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.
5 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.
6 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.
7 is a perspective view schematically showing a tray according to another embodiment of the present invention.
FIG. 8 is a cross-sectional view taken along line AA of FIG. 7 .
FIG. 9 is a view showing a modified example of FIG. 8 .
FIG. 10 is a diagram illustrating another modified example of FIG. 8 .

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

In the following embodiments, terms such as first, second, etc. are used for the purpose of distinguishing one component from another, not in a limiting sense.

In the following examples, the singular expression includes the plural expression unless the context clearly dictates otherwise.

In the following embodiments, terms such as include or have means that the features or components described in the specification are present, and the possibility that one or more other features or components will be added is not excluded in advance.

In the following embodiments, when it is said that a part such as a film, region, or component is on or on another part, not only when it is directly on the other part, but also another film, region, component, etc. is interposed therebetween. Including cases where there is

In the drawings, the size of the components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on a Cartesian coordinate system, and may be interpreted in a broad sense including them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

In cases where certain embodiments may be implemented otherwise, a specific process sequence may be performed different from the described sequence. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in an order opposite to the order described.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. .

1 is a cross-sectional view schematically showing a tray according to an embodiment of the present invention.

Referring to FIG. 1 , the tray 100 of this embodiment includes a seating area SA on which the panel PN is mounted, and includes a base 110 and a counter layer 120 corresponding to the seating area SA. .

The mounting area SA is a place where the panel PN is mounted, and the type of the panel PN is not limited. For example, the panel PN may include a display panel, and more specifically, a liquid crystal display panel and an organic light emitting diode panel may be included.

The base 110 constitutes the main body of the tray 100 and may be formed of a material having excellent durability or manufacturing convenience.

In an optional embodiment, the base 110 may include an organic material, for example, acrylonitrile butadiene styrene (ABS), polyethylene terephthalate (PET), polypropylene (PP) or polycarbonate (PC). have.

Also, as an optional embodiment, the base 110 may include a pigment, for example, a black pigment.

The opposing layer 120 is formed on one surface of the base 110 , specifically, it is formed on one surface of the base 110 to face the panel PN.

That is, when the panel PN is seated in the seating area SA, the opposing layer 120 faces the panel PN, and the opposing layer 120 may be positioned between the panel PN and the base 110 . have.

In an alternative embodiment, at least one region of the opposing layer 120 may be in contact with the panel PN.

The counter layer 120 may include various materials, and may contain at least one selected from the group consisting of a fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound.

In an alternative embodiment, the counter layer 120 may contain a fluorine-based compound such as polytetrafluoroethylene (PTFE), a fluorine-based acrylic polymer, or a perfluoroalkyl polymer.

As another optional embodiment, the facing layer 120 may contain a silicone-based compound such as polyether-modified hydroxy polydimethylsiloxane. The polyether-modified hydroxy polydimethylsiloxane has excellent lubricating properties, releasing properties, antifouling properties, and chemical resistance, so that the surface properties of the facing layer 120 can be improved.

As another optional embodiment, the opposing layer 120 may contain a molybdenum-based compound such as MoS2. When the opposing layer 120 contains MoS2, MoS2 has excellent lubricating properties, so that chemical resistance and heat resistance of the opposing layer 120 may be improved.

As another optional embodiment, the opposing layer 120 may contain an olefin-based compound such as modified paraffin wax or polyethylene wax.

The opposing layer 120 is formed to contain the above material, and, as an optional embodiment, is composed of at least one selected from the group consisting of a fluorine-based compound, a molybdenum-based compound, and an olefin-based compound to prevent interaction with an organic material or an adhesive. can be lowered

Since the interaction between the opposing layer 120 and the organic material or the adhesive material is lowered, the remaining of the organic material or the adhesive material in the opposing layer 120 may be reduced.

In addition, when the opposing layer 120 contains the above material, the surface tension of the opposing layer 120 is lower than the surface tension of OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive), and the OCR on the opposing layer 120 is Remaining of (Optical Clear Resin) or OCA (Optical Clear Adhesive) is reduced, and even if OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) remains in the opposing layer 120 , it can be easily removed.

As an optional embodiment, OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) includes an organic-based adhesive material, and the opposing layer 120 is provided in such OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive). It may be lower than the surface tension of the organic-based adhesive material.

In addition, the organic-based adhesive material may include, for example, a resin-based adhesive material.

As an alternative embodiment, the opposing layer 120 may contain a material having a lower surface tension than OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive). As an optional embodiment, the counter layer 120 contains at least one selected from the group consisting of the fluorine-based compound, the molybdenum-based compound, and the olefin-based compound to have a lower surface tension than OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive). can have

However, the present invention is not limited thereto, and the opposing layer 120 may be formed of other materials having a lower surface tension than OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) in addition to the above materials.

As an optional embodiment, when the counter layer 120 contains at least one selected from the group consisting of the above materials, that is, a fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound, the amount of the contained material is opposite to each other. It may be contained in an amount of 0.1 to 5 weight percent based on the total weight of the layer 120 . In addition, as an optional embodiment, even when the opposing layer 120 contains a material having a lower surface tension than OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive), the amount of the contained material is the opposing layer 120 . It may be contained in an amount of 0.1 to 5 weight percent based on the total weight of the.

When the amount of the contained material is less than 0.1 weight percent, it is not easy to have the effect of the opposing layer 120 .

In addition, when the amount of the contained material exceeds 5 weight percent, the antistatic property of the opposing layer 120 may decrease. In addition, bonding strength with other materials of the opposing layer 120 , for example, a binder may decrease.

As an alternative embodiment, the opposing layer 120 may include various materials in addition to the above materials. That is, the opposing layer 120 may further include a binder or an antistatic agent.

The binder may include, for example, a polymer such as urethane-based, acrylic-based, urethane-acrylic-based copolymer, polyimide-based, polyamide-based, polyether-based, olefin-based and melamine-based resins.

As another example, the binder includes a unit capable of becoming a polymer by polymerization, such as an acrylate monomer or an acrylate oligomer, and in this case, may optionally include a photoinitiator.

As an optional embodiment, the binder may be included in an amount of 0.1 to 30 weight percent of the total weight of the opposing layer 120 , and as a specific example, may be included in an amount of 5 to 10 weight percent. When the binder is included in an amount of less than 0.1 weight percent, the materials contained in the counter layer 120, for example, a fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound. This can be reduced. When the content of the binder exceeds 30 weight percent, the conductivity of the opposing layer 120 may decrease.

The antistatic agent may include a conductive polymer, a conductive carbon-based material, or an ionic liquid.

The conductive polymer contained in the antistatic agent contains at least one of polyaniline, polypyrrole, polythiophene, poly(3,4-ethylenedioxythiophene), derivatives or copolymers thereof, and π-conjugated water-soluble or organic solvent-soluble conductive polymers. may include

The conductive carbon-based material contained in the antistatic agent may include carbon nanotubes, graphene, or graphite. Among them, carbon nanotubes having a diameter of about 1 to 100 nm and a length of about 1 to 500 μm may be used, and may be added in the form of a carbon nanotube dispersion or the like.

The ionic liquid contained in the antistatic agent may include a cation of Imidazolium ion, Pyidinium ion, Piperidinium ion, Pyrrolidimium ion, Ammonium ion or Phosphonium ion, Halide Phosphate ion, Borate ion, Sulfate ion, FSI ion, TFSI (NTf2 ) ions or anions of OTf ions.

The antistatic agent may be included in an amount of 5 to 35 weight percent of the total weight of the opposite layer 120 . When the antistatic agent content is less than 5 weight percent, its antistatic effect is insufficient. When the antistatic agent content exceeds 35 weight percent, the adhesive force of the opposing layer 120 may be reduced.

The opposite layer 120 may be manufactured by various methods.

As a specific example, it can be formed by applying a coating solution on the base 110, drying and curing. Such a coating solution may include the above materials for forming the counter layer 120 , and may include a solvent together with these materials.

There may be various methods of applying the coating solution, and various methods such as gravure, kiss roll, micro gravure, comma, spray, and dipping may be used. In addition, the curing may be performed using thermal curing or UV curing in consideration of the heat resistance properties of the coating substrate.

Specifically, when the coating solution contains at least one selected from the group consisting of the above materials for forming the counter layer 120 , that is, a fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound, the contained material may be contained in an amount of 0.1 to 5 weight percent based on the total weight of the coating solution. In addition, as an optional embodiment, even when the opposing layer 120 contains a material having a lower surface tension than OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive), the amount of the contained material is the total weight of the coating layer. It may be contained in an amount of 0.1 to 5 weight percent based on the weight.

The solvent is a polar organic solvent such as water, dimethyl sulfoxide (DMSO), dimethylformamide (DMF), N-methyl-2-pyrrolidinone (NMP), 2-butanone, 4-methyl-2-pentanone, and It may include alcohols such as methyl alcohol, ethyl alcohol, isopropyl alcohol, isobutyl alcohol, t-butyl alcohol, benzyl alcohol, ethylene glycol, and the like, and the solvent may be included in an amount of about 30 to 94.8 weight percent of the total weight of the coating solution. .

The binder may be included in an amount of 0.1 to 30 weight percent of the total weight of the coating solution, and as a specific example, may be included in an amount of 5 to 10 weight percent.

The antistatic agent may be included in 5 to 35 weight percent of the total weight of the coating layer.

In addition, as an optional embodiment, additives may be included in such a solvent, and the additives may include a dispersing agent, a wetting agent, or a leveling agent, and may include 5 weight percent or less of the total weight of the coating solution.

The tray 100 of this embodiment includes the base 110 and the opposing layer 120 in at least an area corresponding to the seating area SA, and the opposing layer 120 is a panel PN of one surface of the base 110 . ) is formed on the side facing

The counter layer 120 may contain at least one selected from the group consisting of a fluorine-based compound, a molybdenum-based compound, a silicon-based compound, and an olefin-based compound, and a lower surface than OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive). It may contain a material having tension.

Through this, it is possible to reduce the amount of organic material or adhesive material remaining on the opposite layer 120 . In particular, it is easy to reduce the remaining of OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) in the opposing layer 120 and even if OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) remains in the opposing layer 120 . can be removed.

The panel PN to be seated on the tray 100, for example, a liquid crystal display panel or an organic light emitting diode panel, is mounted on the liquid crystal display panel or the organic light emitting diode panel during the manufacturing process or during post-processing, during other operations. The organic material used during manufacturing, in particular, OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) remaining in the tray 100 is reduced, even if it can be easily removed. Through this, even if the process is performed after the panel PN is seated on the tray 100, and then other panels PN are continuously seated to proceed with the process, the new panel PN is formed of these organic materials, especially OCR (Optical Clear). It can reduce contamination with Resin) or OCA (Optical Clear Adhesive).

As a result, manufacturing efficiency can be improved by using the tray 100 during a display manufacturing process such as an LCD display or an OLED display.

Meanwhile, the opposing layer 120 of the tray 100 is formed to face the panel PN and includes an antistatic agent as an optional embodiment to reduce defects in the panel PN due to static electricity.

2 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.

Referring to FIG. 2 , the tray 200 of this embodiment includes a seating area SA on which the panel PN is mounted, and includes a base 210 and an opposing layer 220 corresponding to the seating area SA. .

The seating area SA is a place where the panel PN is mounted, and the type of panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

In addition, an area corresponding to the seating area SA of the tray 200 includes one or more protrusions CA and an opposing groove GA1 . The protrusion CA and the facing groove GA1 may be formed during a vacuum forming process for forming the tray 200 .

The protrusion CA has a shape protruding toward the panel PN. The protrusion CA may contact the panel PN when the panel PN is seated in the seating area SA.

Although the upper surface of the protrusion CA is flat in FIG. 2 , the present exemplary embodiment is not limited thereto, and the upper surface of the protrusion CA may have a curved shape. In addition, as another example, the cross-section of the protrusion CA may have a parabolic shape with a convex upward shape.

The opposing groove GA1 is formed to be adjacent to the protrusion CA, and the opposing groove GA1 is formed to be farther from the panel PN than the protrusion CA. As an alternative embodiment, the facing groove GA1 may be spaced apart from the panel PN.

The contact area between the panel PN and the tray 200 can be reduced through the protrusion CA and the facing groove GA1, and an organic material used in manufacturing the panel PN, especially OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) reduces the amount of remaining in the tray 200, and even if it remains, it can be easily removed. In addition, even if the process proceeds after the panel PN is seated on the tray 200, and then other panels PN are continuously seated to proceed with the process, the new panel PN is formed of these organic materials, particularly OCR ( Contamination with Optical Clear Resin) or OCA (Optical Clear Adhesive) can be reduced.

The base 210 and the opposing layer 220 have shapes corresponding to the protrusion CA and the opposing groove GA1 .

In addition, a rear groove GA2 is formed on the lower surface of the base 210 , that is, on a surface opposite to the surface facing the opposing layer 220 . The rear groove GA2 may have a shape corresponding to the protrusion CA. It is possible to reduce adhesion of organic materials to the lower surface of the base 210 through the rear groove GA2.

Materials for forming the base 210 and the opposing layer 220 are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

3 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.

Referring to FIG. 3 , the tray 300 of this embodiment includes a seating area SA on which the panel PN is mounted, and includes a base 210 and an opposing layer 220 corresponding to the seating area SA. .

The mounting area SA is a place where the panel PN is mounted, and the type of the panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

In addition, an area corresponding to the seating area SA of the tray 200 includes one or more protrusions CA and an opposing groove GA.

In the tray 300 of FIG. 3 , a rear groove is not formed on the rear surface of the base 310 as compared to the tray 200 of FIG. 2 . That is, a groove corresponding to the protrusion CA is not formed on the rear surface of the base 310 of the tray 300 of FIG. 3 .

Through this, it is possible to improve work safety by increasing the contact area between the base 310 and the ground or the work surface for performing the process, such as the upper surface of the stage.

Materials for forming the base 310 and the opposing layer 320 are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

4 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.

2 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.

Referring to FIG. 4 , the tray 400 of the present embodiment includes a seating area SA on which the panel PN is mounted, and a partition BU around the seating area SA.

The tray 400 also includes a base 410 and an opposing layer 420 .

The mounting area SA is a place where the panel PN is mounted, and the type of the panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

The partition wall part BU may correspond to at least one side of the seating area SA, and as an optional embodiment, the partition wall part BU may be formed to surround the seating area SA around the seating area SA. have.

The barrier rib part BU can prevent the panel from leaking out of the tray 400 when the panel is seated in the seating area SA, and reduces the fluidity of the panel, leaving the panel seated on the tray 400 Process efficiency can be improved when proceeding.

The partition wall part BU may have a wall shape that protrudes from the seating area SA.

As an optional embodiment, a step portion SU may be further included between the partition wall portion BU and the seating area SA. The step part SU can reduce the deformation of the tray 400 in the area between the seating area SA and the partition wall part BU by alleviating the sudden bend between the seating area SA and the partition wall part BU. have.

Also, as an optional embodiment, when the panel is placed in contact with the upper surface of the stepped portion SU when the panel is seated in the seating area, the contact area between the panel and the tray may be reduced.

In addition, as another example, the side surface of the step portion SU may be brought into contact with the panel, thereby reducing movement or vibration of the panel when the panel is seated.

Although not shown, as an alternative embodiment, the tray 400 may include protrusions or grooves as shown in FIG. 2 or FIG. 3 .

Materials for forming the base 410 and the opposing layer 420 are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

5 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.

Referring to FIG. 5 , the tray 500 of this embodiment includes a seating area SA on which the panel is mounted, and a base 510 , an opposing layer 520 and a protective layer 530 corresponding to the seating area SA. includes

The seating area SA is a place where the panel is mounted, and the type of the panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

In addition, the protective layer 530 is formed on the opposite surface of the surface of the base 510 of the tray 500 toward the opposite layer 520 , that is, on the lower surface of the base 510 with reference to FIG. 5 .

The protective layer 530 may protect the tray 500 from organic matter and other foreign matter remaining on the working surface on which the tray 500 is disposed, for example, on the upper surface of the stage when the process proceeds through the tray 500 .

The passivation layer 530 may be formed of various materials, and as an optional embodiment, the passivation layer 530 may be formed to include at least one of the materials forming the opposing layer 520 .

As an optional embodiment, the protective layer 530 may be formed of the same material as the opposite layer 520 .

Although not shown, as an alternative embodiment, the tray 500 may include a protrusion or a groove as shown in FIG. 2 or FIG. 3 .

Materials for forming the base 510 and the opposing layer 520 are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

In addition, the protective layer 530 of the present embodiment may be selectively applied to one or more of the above-described embodiments or the embodiments to be described later.

6 is a cross-sectional view schematically showing a tray according to another embodiment of the present invention.

Referring to FIG. 6 , the tray 600 of this embodiment includes a seating area SA on which the panel is mounted, and a base 610 , an opposing layer 620 and a protective layer 630 corresponding to the seating area SA. includes

The seating area SA is a place where the panel is mounted, and the type of the panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

Base 610 includes a plurality of layers 611 , 612 , 613 . Specifically, the first peripheral layer 612 and the second peripheral layer 613 may be included around the intermediate layer 611 . The intermediate layer 611 is a layer constituting the skeleton of the base 610 and may be formed to be thicker than each of the first and second peripheral layers 612 and 613 of the base 610 .

The intermediate layer 611 , the first peripheral layer 612 , and the second peripheral layer 613 may include the materials forming the base of the described embodiment. Specifically, it may include an organic material, for example, may include acrylonitrile butadiene styrene (ABS), polyethylene terephthalate (PET), polypropylene (PP) or polycarbonate (PC).

In this case, the first peripheral layer 612 may include the same material as the second peripheral layer 613 , and may include a material different from that of the intermediate layer 611 .

Also, in an alternative embodiment, the first peripheral layer 612 may include the same material as the second peripheral layer 613 and the intermediate layer 611 .

In addition, a protective layer 630 is formed on the opposite surface of the surface of the base 610 of the tray 600 toward the opposite layer 620 , that is, on the lower surface of the base 610 with reference to FIG. 6 .

In an optional embodiment, the protective layer 630 may be omitted.

Although not shown, as an alternative embodiment, the tray 600 may include protrusions or grooves as shown in FIG. 2 or FIG. 3 .

Materials for forming the base 610 , the opposing layer 620 , and the protective layer 630 are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

In addition, the configuration of the base 610 of the present embodiment may be selectively applied to one or more of the above-described embodiments or the embodiments to be described later.

7 is a perspective view schematically showing a tray according to another embodiment of the present invention, and FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7 .

Referring to FIGS. 7 and 8 , the tray 700 of this embodiment includes a seating area SA on which a panel is mounted, and a partition wall BU around the seating area SA.

Tray 700 also includes a base 710 and an opposing layer 720 .

The mounting area SA is a place where the panel is mounted, and the type of the panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

The partition wall part BU may correspond to at least one side of the seating area SA, and as an optional embodiment, the partition wall part BU may be formed to surround the seating area SA around the seating area SA. have.

As an optional embodiment, the partition wall part BU may have a protruding shape. In addition, a space corresponding to the protruding shape may be formed in the opposite direction of the protruding shape of the partition wall portion BU. Through this, handling of the tray 700 can be facilitated.

In addition, the tray 700 may include a plurality of seating areas SA, and the barrier rib part BU may have a shape that separates the plurality of seating areas SA.

The barrier rib part BU can prevent the panel from leaking out of the tray 400 when the panel is seated in the seating area SA, and reduces the fluidity of the panel, leaving the panel seated on the tray 400 Process efficiency can be improved when proceeding.

As an optional embodiment, a step portion SU may be further included between the partition wall portion BU and the seating area SA. The step portion SU can reduce the deformation of the tray 400 in the area between the seating area SA and the partition wall BU by alleviating the sudden bend between the seating area SA and the partition wall part BU. have.

Also, as an optional embodiment, when the panel is placed in contact with the upper surface of the stepped portion SU when the panel is seated in the seating area, the contact area between the panel and the tray may be reduced.

In addition, as another example, the side surface of the step portion SU may be brought into contact with the panel, thereby reducing movement or vibration of the panel when the panel is seated.

Although not shown, as an alternative embodiment, the tray 700 may include protrusions or grooves as shown in FIG. 2 or FIG. 3 .

Materials for forming the base 710 and the opposing layer 720 are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

FIG. 9 is a view showing a modified example of FIG. 8 .

Referring to FIG. 9 , the tray 800 of the present embodiment includes a seating area SA on which the panel is mounted, and a partition wall part BU around the seating area SA.

Tray 800 also includes a base 810 and an opposing layer 820 .

The mounting area SA is a place where the panel is mounted, and the type of the panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

In addition, an area corresponding to the seating area SA of the tray 800 includes one or more protrusions CA and an opposing groove GA1 .

The protrusion CA has a shape protruding toward the panel. The protrusion CA may contact the panel when the panel is seated in the seating area.

Although the upper surface of the protrusion CA is curved in FIG. 9 , the present exemplary embodiment is not limited thereto, and the upper surface of the protrusion CA may be in the form of a flat surface.

The opposing groove GA1 is formed to be adjacent to the protrusion CA, and the opposing groove GA1 is formed to be farther from the panel than the protrusion CA. As an alternative embodiment, the facing groove GA1 may be spaced apart from the panel.

The contact area between the panel PN and the tray 700 may be reduced through the protrusion CA and the facing groove GA1, and an organic material used in manufacturing the panel, particularly OCR (Optical Clear Resin) or OCA (Optical Clear Resin), may be reduced. Adhesive) reduces the amount of remaining in the tray 700, and even if it remains, it can be easily removed. In addition, through this, the process is performed after the panel is seated on the tray 700, and then, even if the process is performed by continuously seating other panels, the new panel is made of these organic materials, particularly OCR (Optical Clear Resin) or OCA (Optical Clear Resin). Adhesive) contamination can be reduced.

The base 810 and the opposing layer 820 have shapes corresponding to the protrusion CA and the opposing groove GA1 .

In addition, a rear groove GA2 is formed on the lower surface of the base 810 , that is, on a surface opposite to the surface facing the opposing layer 820 . The rear groove GA2 may have a shape corresponding to the protrusion CA. It is possible to reduce adhesion of organic materials to the lower surface of the base 810 through the rear groove GA2.

The partition wall part BU may correspond to at least one side of the seating area SA, and as an optional embodiment, the partition wall part BU may be formed to surround the seating area SA around the seating area SA. have.

As an optional embodiment, the partition wall part BU may have a protruding shape. In addition, a space corresponding to the protruding shape may be formed in the opposite direction of the protruding shape of the partition wall portion BU. Through this, handling of the tray 800 may be facilitated.

The barrier rib part BU can prevent the panel from leaking out of the tray 800 when the panel is seated in the seating area SA, and reduces the fluidity of the panel, leaving the panel seated on the tray 800 . Process efficiency can be improved when proceeding.

As an optional embodiment, a step portion SU may be further included between the partition wall portion BU and the seating area SA. The step portion SU can reduce the deformation of the tray 800 in the area between the seating area SA and the partition wall BU by alleviating the sudden bend between the seating area SA and the partition wall part BU. have.

Also, as an optional embodiment, when the panel is placed in contact with the upper surface of the stepped portion SU when the panel is seated in the seating area, the contact area between the panel and the tray may be reduced.

In addition, as another example, the side surface of the step portion SU may be brought into contact with the panel, thereby reducing movement or vibration of the panel when the panel is seated.

Materials for forming the base 810 and the opposing layer 820 are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

FIG. 10 is a view showing another modified example of FIG. 8 .

Referring to FIG. 10 , the tray 900 according to this embodiment includes a seating area SA on which the panel is mounted, and a partition wall BU around the seating area SA.

Tray 900 also includes a base 910 and an opposing layer 920 .

The mounting area SA is a place where the panel is mounted, and the type of the panel is not limited. For example, the panel may include a display panel, and more specific examples may include a liquid crystal display device panel and an organic light emitting device panel.

In addition, an area corresponding to the seating area SA of the tray 900 includes one or more protrusions CAA and an opposing groove GAA.

In addition, the tray 900 of this embodiment includes protrusions CAB and CAC around the seating area SA, and also includes grooves GAB and GAC around the seating area SA.

The partition wall part BU may correspond to at least one side of the seating area SA, and as an optional embodiment, the partition wall part BU may be formed to surround the seating area SA around the seating area SA. have.

As an optional embodiment, the partition wall part BU may have a protruding shape. In addition, a space corresponding to the protruding shape may be formed in the opposite direction of the protruding shape of the partition wall portion BU. Through this, handling of the tray 900 may be facilitated.

As an optional embodiment, a step portion SU may be further included between the partition wall portion BU and the seating area SA. The step portion SU can reduce the deformation of the tray 900 in the area between the seating area SA and the partition wall BU by alleviating the sudden bend between the seating area SA and the partition wall part BU. have.

The protrusions CAB and CAC may be formed in the partition BU and may also be formed in the step SU as an optional embodiment. The protrusion CAC may be formed on a side surface facing the seating area SA and a side surface of the partition wall part BU.

Also, the protrusion CAB may be formed on a protruding upper surface of the partition BU.

The grooves GAB and GAC are formed in the partition BU, and may also be formed in the step SU as an optional embodiment. The groove GAB is formed on a side of the partition BU that faces the seating area SA, and the groove GAC is a side of the partition BU that faces the side facing the seating area SA. can be formed in

Also, the groove may be formed on a protruding upper surface of the partition wall portion BU.

Example

Hereinafter, the configuration and operation of the present invention will be described in more detail through preferred embodiments of the present invention. However, this is presented as a preferred example of the present invention and cannot be construed as limiting the present invention in any sense.

Content not described here will be omitted because it can be technically inferred sufficiently by those skilled in the art.

1. Preparation of Specimen

(1) Example 1

PTFE 5 weight percent, carbon nanotube dispersion (carbon nanotube content 40 weight percent) 30 weight percent, acrylic-urethane copolymer binder (Stahl Asia Pte Ltd., WF-4644) 5 weight percent, water 20 weight percent and isopropyl alcohol After adding 0.3 parts by weight of a wetting agent to 100 parts by weight of the coating solution consisting of 40 weight percent, it was gravure-coated on a flat ABS material, and then dried at 80° C. for 3 minutes to form a 1 μm counter layer.

(2) Example 2

A coating layer was formed under the same conditions as in Example 1 except that 5 weight percent of MoS ₂ was used instead of 5 weight percent of PTFE.

(3) Example 3

A coating layer was formed under the same conditions as in Example 1, except that an ABS material having embossed protrusions and grooves was used instead of a flat ABS material base.

(4) Comparative Example 1

A coating layer was formed under the same conditions as in Example 1, except that 5 weight percent of PTFE was not included in the coating solution, but 35 weight percent of the carbon nanotube dispersion was included.

2. OCR, OCA removal ability evaluation

(1) The same amounts of OCR and OCA were applied to the specimens prepared according to Examples 1 to 3 and Comparative Example 1 and left for 30 minutes. As a specific example, OCR and OCA containing an organic-based adhesive material were used.

Thereafter, by performing air gun cleaning, it was visually evaluated whether OCR OCA remained on the surface of the specimen.

◎ : Complete removal of OCR and OCA

O: OCR less than 1cm2, OCA residual

X : OCR over 1cm2, OCA residual

Table 1 shows the evaluation results of OCR and OCA removal ability.

(2) surface resistance

For the specimens prepared according to Examples 1 to 3 and Comparative Example 1, the surface resistance was measured according to the ASTM D257 method, and the results are shown in Table 1.

OCR, OCA removal ability Surface resistance (□/Ω) note Example 1 O 1*10 ⁶ to 1*10 ⁹ with PTFE Example 2 O 1*10 ⁶ to 1*10 ⁹ MoS ₂ include Example 3 ◎ 1*10 ⁶ to 1*10 ⁶ PTFE + protrusion (groove) Comparative Example 1 X 1*10 ⁶ to 1*10 ⁹

Referring to Table 1, in the case of Examples 1 to 3 containing PTFE or MoS ₂ having a smaller surface tension than OCR and OCA, compared to Comparative Example 1, it can be seen that OCR and OCA removal ability is relatively excellent. In particular, Example 3, in which embossed protrusions and grooves were formed on the base together with PTFE, showed the best OCR and OCA removal capabilities.

As described above, the present invention has been described with reference to one embodiment shown in the drawings, but it will be understood that various modifications and variations of the embodiments are possible therefrom by those of ordinary skill in the art. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: tray
110: base
120: facing layer

Claims (18)

A tray comprising a seating area on which a panel is seated, the tray comprising:
The tray is
at least a base corresponding to the seating area; and
One selected from the group consisting of a fluorine-based acrylic polymer, a perfluoroalkyl polymer, and MoS ₂ that corresponds to the seating area and is formed on a surface of the base facing the panel to face the panel when the panel is seated on the tray A tray comprising an opposing layer containing an anomaly. delete delete According to claim 1,
The counter layer further includes a silicone compound, and the silicone compound contained in the counter layer contains polyether-modified hydroxy polydimethylsiloxane. According to claim 1,
The counter layer further includes an olefin-based compound, and the olefin-based compound contained in the counter layer contains a modified paraffin wax or polyethylene wax. According to claim 1,
It is formed to correspond to at least the seating area,
A tray further comprising: a protrusion protruding toward the panel when the panel is seated on the tray; and a groove adjacent to the protrusion. 7. The method of claim 6,
The groove is formed to be spaced apart from the panel when the panel is seated on the tray. According to claim 1,
A tray further comprising a partition wall portion formed around the seating area. 9. The method of claim 8,
The tray further comprising a step portion formed between the partition wall portion and the seating area. According to claim 1,
The tray further comprising a protective layer formed on a surface opposite to the surface facing the opposite layer of the surface of the base. According to claim 1,
The base is a tray having a plurality of layers. According to claim 1,
and the counter layer further contains a binder or an antistatic agent. A tray comprising a seating area on which a panel is seated, the tray comprising:
The tray is
at least a base corresponding to the seating area; and
and a counter layer corresponding to the seating area and formed on a surface of the base facing the panel and containing a material having a smaller surface tension than OCR or OCA,
The counter layer is a tray containing at least one selected from the group consisting of a fluorine-based acrylic polymer, a perfluorinated alkyl polymer, and MoS ₂ . 14. The method of claim 13,
The OCR or OCA tray includes an organic-based adhesive material. A method of manufacturing a tray comprising a seating area on which a panel is seated, the method comprising:
The method of manufacturing the tray,
forming a base corresponding to at least the seating area; and
One selected from the group consisting of a fluorine-based acrylic polymer, a perfluoroalkyl polymer, and MoS ₂ that corresponds to the seating area and is disposed on a surface of the base facing the panel to face the panel when the panel is seated on the tray A tray manufacturing method comprising the step of forming an opposing layer containing the above. 16. The method of claim 15,
The step of forming the counter layer comprises:
forming a coating layer by applying a coating solution including the selected one or more materials, a binder or an antistatic agent, and a solvent to one surface of the base; and
A tray manufacturing method comprising the step of drying and curing the coating layer. 17. The method of claim 16,
The coating solution comprises 0.1 to 5 weight percent of the selected one or more materials, 0.1 to 30 weight percent of a binder, 5 to 35 weight percent of an antistatic agent, and 30 to 94.8 weight percent of a solvent. 16. The method of claim 15,
It is formed to correspond to at least the seating area,
Further comprising the step of forming a protrusion that protrudes toward the panel when the panel is seated on the tray and a groove adjacent to the protrusion,
The protrusion and groove is a tray manufacturing method formed in a vacuum forming step.

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