TRAY MODULE

A tray module includes a first protective film, a second protective film, a cover film, and a tray. The first protective film includes a first adhesive layer. A loading target part is in contact with a bottom surface of the first adhesive layer. The second protective film includes a second adhesive layer. The loading target part is in contact with an upper surface of the second adhesive layer. The cover film is in contact with a portion of the second adhesive layer exposed by a distance (e.g., a predetermined or selectable distance) from an edge of the first protective film in a direction. Since the loading target part is fixed to the tray by the cover film instead of the protective films, contamination of the loading target part or the tray due to the first adhesive layer or the second adhesive layer may be prevented.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority under 35 U.S.C. § 119 from Korean Patent Application No. 10-2022-0116445 filed in the Korean Intellectual Property Office on Sep. 15, 2022, the entire content of which incorporated herein by reference.

BACKGROUND

1. Technical Field

This disclosure relates to a tray module capable of accommodating a loading target part.

2. Description of the Related Art

A loading target part may be loaded, transported, and stored in a tray during a manufacture of a final product. The loading target part loaded into the tray may move during a transportation process. In case that the loading target part collides with the tray, the loading target part may get damaged.

To prevent such damage, protective films may be attached to an upper portion and a lower portion of the loading target part to serve as a buffer. Each of the protective films may include an adhesive layer that may be adhered to the loading target part. The protective films may be removed in a post-process.

SUMMARY

The disclosure may provide a tray module capable of preventing contamination of a loading target part or a tray by a protective film.

A tray module according to an embodiment of the disclosure may include a first protective film may include a first adhesive layer that may include a bottom surface in contact with a loading target part, a second protective film that may include a second adhesive layer that may include an upper surface in contact with the loading target part, a portion of the second adhesive layer may be exposed by a distance in a lateral direction from an edge of the first protective film, a cover film may be disposed on the first protective film and contacting the exposed portion of the second adhesive layer, and a tray to accommodate the loading target part.

In an embodiment, the cover film may include a central portion corresponding to the loading target part in a plan view, and a first edge portion protruding in a diagonal direction from the central portion.

In an embodiment, the cover film may further include a second edge portion.

In an embodiment, the first and the second edge portions may be spaced-apart from each other in the diagonal direction in the plan view.

In an embodiment, a hole may be disposed in the first edge portion.

In an embodiment, the first edge portion may include a damper.

In an embodiment, the damper may protrude outward from a periphery of the first edge portion.

In an embodiment, the cover film may extend beyond a peripheral edge of the second protective film in the lateral direction.

A tray module according to an embodiment of the disclosure may include a first protective film covering a loading target part, a cover film disposed on the first protective film, the cover film including a central portion corresponding to the loading target part and an edge portion protruding in a diagonal direction from the central portion in a plan view, and a tray including a first accommodating portion corresponding to the central portion, wherein a peripheral edge of the first accommodating portion extends beyond a corresponding peripheral edge of the central portion by a first shortest distance, and a second accommodating portion corresponding to the edge portion, wherein a peripheral edge of the second accommodating portion extends beyond a corresponding peripheral edge of the edge portion by a second shortest distance, wherein the second shortest distance is less than the first shortest distance.

In an embodiment, the second accommodating portion may be adjacent to each of at least two edges of the first accommodating portion in the plan view.

In an embodiment, the tray may include two second accommodating portions, the two second accommodating portions may be spaced-apart from each other in the diagonal direction in the plan view.

In an embodiment, the tray module may further include a second protective film disposed under the loading target part.

In an embodiment, a distance between a sidewall of the tray and the second protective film may be equal to a distance between the sidewall of the tray and the cover film.

In an embodiment, a distance between a sidewall of the tray and the second protective film may be larger than the distance between the sidewall of the tray and the cover film.

In an embodiment, a distance between a sidewall of the tray and the first protective film may be larger than the distance between a sidewall of the tray and the cover film.

In an embodiment, a damper may be disposed in the second accommodating portion.

In an embodiment, the damper may be a recess curved inwards towards the edge portion.

In an embodiment, a hole may be disposed in the edge portion.

In an embodiment, the second accommodating portion may further include a fixing portion penetrating the hole.

In an embodiment, the fixing portion may have a conical shape with a diameter decreasing with distance from the second accommodating portion.

Since the loading target part is fixed to the tray by the cover film instead of the protective film, contamination of the loading target part or the tray due to the first adhesive layer included in the first protective film or the second adhesive layer included in the second protective film may be prevented.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Turning now toFIGS.1to3,FIG.1is a schematic cross-sectional view of a tray module1000according to an embodiment of the disclosure,FIG.2is an enlarged view of area A ofFIG.1, andFIG.3is a plan view of the tray module ofFIG.1. Referring toFIG.1, the tray module1000according to the embodiment of the disclosure may include a first protective film210, a second protective film220, a cover film300, and a tray400. The tray module1000may accommodate a loading target part100. The loading target part100may include glass. For example, the loading target part100may be ultra-thin glass. The ultra-thin glass may have a thickness of about 300 μm or less. The loading target part100may be a display device, however a type of the display device may not be limited. Also, the loading target part100may not be limited as long as the loading target part100may be transported by the tray400.

Each of the first protective film210and the second protective film220may be adhered to the loading target part100to prevent damage to the loading target part100. Specifically, the first protective film210may adhere to an upper portion of the loading target part100, and the second protective film200may adhere to a bottom portion of the loading target part100. Each of the first protective film210and the second protective film220may have a film form having a certain thickness. Each of the first protective film210and the second protective film220may adhere to the upper portion and the bottom portion respectively of the loading target part100using an adhesive. Each of the first protective film210and the second protective film220may be removed from the loading target part100in a process of manufacturing a final product.

The first protective film210may include a first base film layer211and a first adhesive layer212. At a bottom surface of the first adhesive layer212(for example, under the first adhesive layer212), the first protective film210may contact the loading target part100. The first base film layer211may protect the loading target part100.

The first base film layer211may include a material preventing an occurrence of scratches to the loading target part100(capable of preventing scratches from occurring on the loading target part). For example, the first base film layer211may include plastics such as a polyethylene terephthalate, a polyethylene naphthalate, a polycarbonate, a polymethyl methacrylate, a polystyrene, a polyvinyl chloride, a polyethersulfone, a polyethylene, a polypropylene, the like, or a combination thereof. However, the disclosure may not be limited thereto as the material of the first base film layer211may instead be some other material capable of serving as a buffer.

The first adhesive layer212may include an adhesive such as an acrylic-based adhesive, a silicon-based adhesive, a urethane-based adhesive, a rubber-based adhesive, a vinyl-ether-based adhesive, the like, or a combination thereof. For example, the first adhesive layer212may include an optically clear adhesive, pressure sensitive adhesive, the like, or a combination thereof. However, the disclosure may not be limited thereto, as the material of the first adhesive layer212may instead be some other material capable of adhering to the loading target part100.

An area of the first adhesive layer212may be substantially equal to an area of the first protective film210. Accordingly, the first adhesive layer212may adhere the first protective film210to the loading target part100.

In an embodiment, the first protective film210may have a multi-layer structure. Accordingly, the strength of the first protective film210that protects the loading target part100may be increased. The first protective film210may instead have a single-layer structure.

Although referred to as the first protective film210and the second protective film220according to stacking locations, the first protective film210and the second protective film220may have same elements. Hereinafter, any repetitive detailed descriptions of a same or like elements as those of the first protective film210described above will be omitted or simplified.

The second protective film220may include a second base film layer221and a second adhesive layer222. The upper surface of the second adhesive layer222may contact the loading target part100. The second base film layer221may protect the loading target part100.

The second base film layer221may include a same material as the first base film layer211. The second base film layer221may instead include a material different from that of the first base film layer211. For example, the second base film layer221may include plastics such as a polyethylene terephthalate, a polyvinyl chloride, a polycarbonate, a polyether sulfone, the like, or a combination thereof but the disclosure may not be limited thereto as an other material may instead be used as long as the material is capable of serving as a buffer.

The second adhesive layer222may include an adhesive such as an acrylic-based adhesive, a silicon-based adhesive, a urethane-based adhesive, a rubber-based adhesive, a vinyl-ether-based adhesive, the like, or a combination thereof. For example, the second adhesive layer222may include an adhesive such as an optically clear adhesive, pressure sensitive adhesive, the like, or a combination thereof. The disclosure may not be limited thereto as other materials may instead be included in the second adhesive layer222as long as the material is capable of being adhered to the loading target part100.

An area of the second adhesive layer222may be substantially equal to an area of the second protective film220. Accordingly, the second adhesive layer222may adhere the second protective film220to the loading target part100.

The second protective film220may instead not include the second adhesive layer222. For example, the first protective film210and the second protective film220may both be adhered to the loading target part100by the first adhesive layer212.

The cover film300may include plastics such as a polyimide, a polyethylene terephthalate, a polyethylene naphthalate, a polyether sulfone, an nylon, a polytetrafluoro ethylene, a polyetheretherketone, a polycarbonate, a polyarylate, the like, or a combination thereof but the disclosure may not be limited thereto. A detailed description of the cover film300will be described later with reference toFIG.2.

The tray400according to the embodiment of the disclosure may accommodate multiple loading target parts. The tray400may be a transport mechanism for transporting multiple loading target parts. The tray400may include multiple pocket parts, and each of the multiple pocket parts may accommodate one or more of the loading target parts. For example, the tray400may include six pocket parts however, the number of the pocket parts may be changed in consideration of a size, weight, and the like of the loading target part100.

Multiple trays may be stacked on each other. Accordingly, the tray400may transport the multiple loading target parts. Specifically, the tray400may be stacked on each other in a third direction DR3. Accordingly, the transport device may transport multiple trays. Here, the third direction DR3may cross a first direction DR1and a second direction DR2, respectively.

During transport, the loading target part100may be damaged by impact. Accordingly, the tray400may include a material capable of absorbing the impact. For example, the tray400may include a styrofoam such as an expanded polystyrene, an expanded polypropylene, the like, or a combination thereof but the disclosure may not be limited thereto, and the tray400may instead include other various materials, and the tray400may be manufactured in various ways depending on the materials. A detailed description of the tray400will be described later with reference toFIGS.3and6to12.

Each of the first protective film210and the second protective film220may be laminated with the loading target part100disposed therebetween. After the lamination, in case that a center of the first protective film210and a center of the second protective film220do not coincide, a lamination tolerance may occur in the first direction DR1and/or the second direction DR2in a schematic cross-sectional view. For example, as shown inFIG.1, the second protective film220may be disposed closer to a sidewall450(hereinafter, the a sidewall450may be referred to as a right sidewall450) of the tray400. On the other hand, the first protective film210may instead be disposed closer to another sidewall (e.g., a left sidewall).

In case that the tray400is transported, the loading target part100may move within the tray400. Accordingly, an adhesive may contact and be rubbed onto the tray400(e.g., the adhesive included in the first adhesive layer212and/or the second adhesive layer222may contaminate the tray400). Hereinafter, the principle of operation of the tray module1000capable of preventing the contamination of the tray400will be described with reference toFIGS.2to12.

Referring toFIG.2, the cover film300may prevent the contamination of the tray400. The first protective film210may be disposed on the upper portion of the loading target part100, and the second protective film220may be disposed on the bottom portion of the loading target part100. The cover film300may be disposed on an upper portion of the first protective film210. The cover film300may be cut after the lamination to correspond to a shape of the tray400. At this time, the cover film300may be cut to be larger than the first protective film210and the second protective film220. Accordingly, the first adhesive layer212and the second adhesive layer222may be prevented from contacting the tray400.

The first protective film210and the second protective film220may not completely overlap each other in the first direction DR1and/or the second direction DR2. As a result, the second adhesive layer222may be exposed by a distance L1(e.g., a predetermined or selectable distance L1) from an edge226of the second protective film220. Instead, the first adhesive layer212may be exposed by the distance L1(e.g., a predetermined or selectable distance L1) from an edge224of the first protective film210. The distance L1(e.g., a predetermined or selectable distance L1) may be defined as a horizontal distance between a first vertical line NL1passing through the edge224of the first protective film210and a second vertical line NL2passing through the edge226of the second protective film220. Each of the vertical lines (e.g., the first vertical line NL1, and the second vertical line NL2) may be parallel to the third direction DR3. The horizontal distance may be measured in the first direction DR1. In the schematic cross-sectional view, the edge226of the second protective film220may be closer to the sidewall450of tray400than the edge224of the first adhesive layer212.

The cover film300may contact a portion of the second adhesive layer222exposed by the distance L1(e.g., a predetermined or selectable distance L1) from the edge224of the first protective film210in a direction (e.g., the first direction DR1or a lateral direction). In an embodiment, the cover film300may extend from the edge224of the first protective film210to the edge226of the second protective film220and towards the sidewall450of the tray400. In an embodiment, the cover film300may instead extend in a direction (e.g., the first direction DR1or a lateral direction) from the edge226of the second protective film220.

The cover film300may contact the portion of the second adhesive layer222exposed by the distance L1(e.g., a predetermined or selectable distance L1) from the edge224of the first protective film210in the a direction (for example, the edge226of the second protective film220). Accordingly, in case that the loading target part100moves within the tray400, the right sidewall450of the tray400may rub up only against the cover film300. In other words, the tray400may be prevented from being contaminated by foreign material generated by the adhesive included in the first adhesive layer212and/or the second adhesive layer222contacting and rubbing up against the tray400. The cover film300may prevent an exposed portion of the second adhesive layer222i.e., near the edge226of the second protective film220from contacting the tray400.

In case that the tray module1000according to the embodiments of the disclosure described above with reference toFIGS.1and2does not include the cover film300, foreign material may be generated due to the second adhesive layer222included in the second protective film220rubbing up against the tray400, but the disclosure may not be limited thereto. To prevent the contamination of the tray400due to the adhesive, a size of the cover film300may not be limited as long as the size or more may cover the laminated the first protective film210and the second protective film220.

Referring toFIG.3, the cover film300may include a central portion310and an edge portion320. In the plan view, the central portion310may have a rectangular shape with rounded corners however, the disclosure may not be limited thereto as the central portion310may instead have a various other shapes such as circular, polygon, and the like.

The central portion310may have a sufficient size to cover the loading target part100. In the plan view, the central portion310may overlap the loading target part100. Specifically, an area of the central portion310may be larger than an area of the loading target part100. For example, peripheral edges of the central portion310may be spaced apart by about 1 mm or more from peripheral edges of the loading target part100both vertically and horizontally. In case that a separation distance (for example, a shortest distance between any one of the peripheral edges of the central portion310and corresponding peripheral edge of the loading target part100(the one peripheral edge of the loading target part100disposed closest to the any one of the peripheral edges of the central portion310)) may be smaller than about 1 mm, the loading target part100may be damaged by impact during transport. Accordingly, a distance (i.e., an overhang distance) that each side (or peripheral edge) of the central portion310extends beyond a corresponding side (or peripheral edge) of the loading target part100by about 2 mm or more. However, the disclosure may not be limited thereto, and the separation distance may be changed in consideration of the size of the loading target part100, the thickness of the protective films (e.g., the first protective film210and the second protective film220), the like, or a combination thereof.

The edge portion (or corner portion)320of the cover film300may protrude in a first diagonal direction DIA1or a second diagonal direction DIA2from the central portion310. Here, the first diagonal direction DIA1may extend between the first direction DR1and the opposite direction of the second direction DR2, and the second diagonal direction DIA2may extend between the first direction DR1and the second direction DR2.

In case that the edge portion320protrudes in the horizontal direction, an initial peel area of the cover film300may be larger than in case that the edge portion320protrudes in the diagonal direction (e.g., the first diagonal direction DIA1or the second diagonal direction DIA2). Accordingly, in case that the edge portion320protrudes in the horizontal direction, the cover film300may be difficult to peel off from the loading target part100due to larger elasticity than in case that the edge portion320protrudes in the diagonal direction. Thus, the edge portion320may protrude in the first diagonal direction DIA1or the second diagonal direction DIA2from the central portion310.

The number of the edge portions320may be plural. For example, the number of the edge portions320may be at least two. In an embodiment, the number of the edge portion320may be two. In case that the number of the edge portion320may be two, the edge portions320may be spaced-apart from each other in the first diagonal direction DIA1in the plan view. In case that the edge portions320protrudes in a straight direction (e.g., the first direction DR1or the second direction DR2) in the plan view, the loading target part100may move within the tray400. As a result, contamination due to the adhesive may occur in the tray400. Therefore, to prevent movement of the loading target part100within the tray400, the edge portions320may be spaced-apart from each other in the first diagonal direction DIA1in the plan view. The edge portions320may instead be spaced-apart from each other in the second diagonal direction DIA2in the plan view.

In an embodiment, the number of edge portions320may be three. In an embodiment, the number of edge portions320may be four. As the number of edge portions320may be larger, movement of the loading target part100within the tray400may be effectively prevented.

In a plan view, the tray400may include a first accommodating portion410and a second accommodating portion420. In the plan view, the first accommodating portion410may have a rectangular shape with rounded corners however, the disclosure may not be limited thereto as the first accommodating portion410may instead have a various other shapes such as circular, polygon, and the like.

In the plan view, the first accommodating portion410may overlap the central portion310. Specifically, an area of the first accommodating portion410may be larger than the area of the central portion310. For example, a peripheral edge of the first accommodating portion410may be spaced apart (i.e., overhang) about 0.1 mm or more, and about 0.4 mm or less from a corresponding or closest peripheral edge of the central portion310(for example, a peripheral edge of the central portion310disposed closest a peripheral edge of the first accommodating portion410). In case that a separation (or overhang) distance (that is, a shortest distance between a peripheral edge of the first accommodating portion410and a corresponding peripheral edge of the central portion310) may be smaller than about 0.1 mm, the sidewall of the tray400(e.g., the right sidewall450inFIG.3) may rub up against the adhesive due to movement of the loading target part100within the tray400, resulting in contamination of the tray400. At the other extreme, in case that the separation (or overhang) distance exceeds about 0.4 mm, a manufacturing cost of the tray400may be increased. However, the disclosure may not be limited thereto. The separation distance may be changed in consideration of the size of the loading target part100and a movement rate of the loading target part100within the tray400.

The second accommodating portion420may protrude in the first diagonal direction DIA1from first accommodating portion410. The second accommodating portion420may instead protrude in the second diagonal direction DIA2from first accommodating portion410.

A number of the second accommodating portions420included in the tray400may be greater than one. For example, the number of the second accommodating portions420may be at least two. In an embodiment, in case that the number of the edge portions320included in cover film300may be two, the number of second accommodating portions420included in the tray400maybe also be two. In such a scenario, the second accommodating portions420may protrude from the first accommodating portion410in a direction in which the edge portions320protrude from the central portion310. In other words, the second accommodating portions420may be spaced-apart from each other in the first diagonal direction DIA1in the plan view. The second accommodating portions420may instead be spaced-apart from each other in the second diagonal direction DIA2in the plan view. Accordingly, even if the tray400may include only two second accommodating portions420, movement of the loading target part100may be prevented. In case that the number of second accommodating portions420may be two as described above, the tray400may be more readily produced than in case that a number of second accommodating portions420may be more than three.

In an embodiment, the number of the second accommodating portions420may be three. For example, in case that the loading target part100may be a display device, a driving part such as a flexible printed circuit board may be disposed on a side of the display device. In this scenario, second accommodating portions420may be formed in three out of four sides of the first accommodating portion410, so that the fourth side absent a second accommodating portion420corresponds to where the driving part may be disposed.

In an embodiment, the number of the second accommodating portions420may be four. As the number of the second accommodating portions420may be larger, movement of the loading target part100within the tray400may effectively be prevented.

Turning now toFIG.4,FIG.4is an embodiment of the edge portion320ofFIG.3. In the embodiment ofFIG.4, a hole304may be disposed in the edge portion320. The cover film300may be attached to the tray400by inserting a fixing portion (e.g., the fixing portion490inFIG.11) of the tray400into the hole304of the edge portion320of the cover film300. And because the cover part300covers the loading target part100, movement of the loading target part100within the tray400may be prevented. A detailed description of the fixing portion490will be described later with reference toFIGS.11and12.

Turning now toFIG.5,FIG.5is an embodiment of the edge portion320ofFIG.3. In the embodiment ofFIG.5, a damper306may be disposed in the edge portion320that protrudes outward from the edge portion. The damper306may be formed by laser cutting along an edge of the edge portion320however, the disclosure may not be limited thereto as the damper306may instead be formed through another technique.

The damper306may be formed on each side of the edge portion320. The edge portion320may include a first side, a second side and a third side. The first side may extend from the central portion310in the first diagonal direction (e.g., the first diagonal direction DIA1inFIG.3). The second side may extend from the first side and in the second diagonal direction (e.g., the second diagonal direction DIA2inFIG.3). The third side may extend from the second side back towards the central portion310in the first diagonal direction DIAL The damper306may be formed in each of the first side, the second side and the third side. By forming the damper306in each of the first side, the second side and the third side, movement of the loading target part100within the tray400may be prevented.

Turning now toFIGS.6to9,FIG.6is a plan view of tray module2000according to an embodiment of the disclosure,FIG.7is an embodiment of the second accommodating portion420of the tray module2000ofFIG.6,FIG.8is an embodiment of a schematic cross-sectional view according to a I-I′ line ofFIG.7, andFIG.9is an embodiment of the schematic cross-sectional view according to the I-I′ line ofFIG.7.

Referring toFIGS.6to9, the tray module2000according to an embodiment of the disclosure may include the first protective film210, the second protective film220, the cover film300, and the tray400. Hereinafter, any repetitive detailed descriptions of same or like elements as those of the tray module1000described above with reference toFIGS.1to5will be omitted or simplified.

As described above with reference toFIG.1, the loading target part100may not be limited as long as the part may be capable of being transported in the tray400. For example, the loading target part100may include a component such as thin glass, a final product such as a display device, and the like. After adhering the protective films (e.g., the first protective film210and the second protective film220) to the upper portion and the bottom portion respectively of the loading target part100, the fragile loading target part100may be transported in the tray400.

The cover film300may include the central portion310and the edge portion320in the plan view. In the plan view, the central portion310may correspond to the loading target part100. Specifically, the size of the central portion310may be larger than the size of the loading target part100.

In the plan view, the edge portion320may protrude in the first diagonal direction DIA1from the central portion310. In case that the number of the edge portions320may be two, the edge portions320may be spaced-apart from each other in the first diagonal direction DIA1. The edge portions320may instead be spaced-apart from each other in the second diagonal direction DIA2.

The tray400may include the first accommodating portion410and the second accommodating portion420in the plan view. The first accommodating portion410may be capable of accommodating the central portion310, while the second accommodating portion420may be capable of accommodating the edge portion320.

The second accommodating portion420may be adjacent to each of at least two peripheral edges of the first accommodating portion410(e.g., peripheral edges430,440,460and470of the first accommodating portion410) in the plan view. The second accommodating portions420may protrude in the first diagonal direction DIA1from the first accommodating portion410. The second accommodating portions420may instead protrude in the second diagonal direction DIA2from first accommodating portion410.

The number of the second accommodating portions420may be at least two. In case that the number of the second accommodating portions420is two, the second accommodating portions420may be spaced-apart from each other in the first diagonal direction DIA1or in the second diagonal direction DIA2in the plan view.

By arranging the second accommodating portions420to be spaced-apart from each other in a diagonal direction, movement of the loading target part100within the tray400may be prevented. A first shortest distance L410may be defined as a distance between an edge or periphery of the first accommodating portion410and a corresponding edge or periphery of the central portion310. A second shortest distance L420may be defined as a distance between an edge or periphery of the second accommodating portion420and an edge or periphery of the edge portion320. The first shortest distance L410may be larger than the second shortest distance L420. In this scenario, even if the loading target part100moves within the tray400, the edge portion320may contact the sidewall of the tray (e.g., the right sidewall450of the tray400inFIG.7), and the central portion310may remain spaced apart from the sidewall of the tray400. Accordingly, even if the loading target part100moves within the tray400, the first adhesive layer212and the second adhesive layer222may not contact and rub against the tray400as the first and the second protective films210and220are absent from corner portions of the tray module2000corresponding to the edge portion320and the second accommodating portion420.

As shown inFIG.7, the edge portion320may have a protruding distance L322(e.g., a predetermined or selectable distance L322) while the second accommodating portion420may have a protruding distance L422(e.g., a predetermined or selectable distance L422). In this disclosure, the protruding distance L322of the edge portion320may be larger than the protruding distance L422of the second accommodating portion420. Accordingly, the edge portion320may be fixed to the tray400, and the central portion310may be spaced apart from the tray400. As the central portion310may be spaced apart from the tray400, even if the loading target part100moves within the tray400, the first adhesive layer212and the second adhesive layer222may not contact the tray400.

As shown inFIG.8, the first protective film210may include the first base film layer211and the first adhesive layer212. The bottom surface of the first adhesive layer212of the first protective film210may contact the loading target part100. In other words, the first protective film210may be disposed on the loading target part100.

The second protective film220may include the second base film layer221and the second adhesive layer222. The top surface of the second adhesive layer222of the second protective film220may contact the loading target part100. In other words, the second protective film220may be disposed under the loading target part100.

In the plan view ofFIG.6, the cover film300may have a first distance in the first direction DR1, and a second distance in the second direction DR2. The first distance of the cover film300and the second distance of the cover film300may be equal, or may be different from each other. In other words, the cover film300may have a rectangular shape or a square shape in the plan view.

In the cross-sectional view ofFIG.8, the first protective film210and the second protective film220laminated on opposite sides of the loading target part100may not completely overlap each other. Instead, the first protective film210and the right sidewall450of the tray400may be spaced apart by a first distance L211, and the second protective film220and the right sidewall450of the tray400may be spaced apart by a second distance L221smaller than the first distance L211.

In an embodiment, the first distance L211may be equal to a distance obtained by adding a second distance L221of the second protective film220in the first direction DR1and a distance of the exposed portion of the second adhesive layer222(e.g., the predetermined or selectable distance L1inFIG.2). In other words, the second distance L221between the right sidewall450of the tray400and the second protective film220may be equal to the distance L300between the right sidewall450of the tray400and the cover film300. Also, the first distance L211between the right sidewall450of the tray400and the first protective film210may be larger than the distance L300between the right sidewall450of the tray400and the cover film300.

In the embodiment ofFIG.9, the first distance L211may be larger than the distance obtained by adding the distance L300between a peripheral edge of the cover film300and a corresponding sidewall450in the first direction DR1and the distance corresponding to L1ofFIG.2corresponding to a length of the exposed portion of the second adhesive layer222. In other words, each of the first distance L211between the right sidewall450of the tray400and an edge of the first protective film210and the second distance L221between the right sidewall450of the tray400and a corresponding edge of the second protective film220may be larger than the distance L300between the right sidewall450of the tray400and a nearest peripheral edge of the cover film300. Accordingly, the tray400and each of the protective films (e.g., the first protective film210and the second protective film220) in the arrangement ofFIG.9may be spaced apart from each other.

Turning now toFIG.10,FIG.10is a variation of the embodiment ofFIG.6focusing in on the second accommodating portion420. In the embodiment ofFIG.10, a damper402may be formed in the second accommodating portion420. The damper402may be a curved recess in a peripheral edge of the second accommodating portion420that is curved in or recessed toward the edge portion320. The damper402may be formed by pressing in a mold, however the disclosure may not be limited thereto as the damper402may instead be formed by other techniques.

The damper402may be formed on each side of the second accommodating portion420. The second accommodating portion420may include a first side, a second side and a third side. The first side may extend from the first accommodating portion410and in the first diagonal direction (e.g., the first diagonal direction DIA1inFIG.6), the second side may extend from the first side and in the second diagonal direction (e.g., the second diagonal direction DIA2inFIG.6), and the third side may extend from the second side towards the first accommodating portion410and in the first diagonal direction DIAL The damper402may be formed in each of the first side, the second side and the third side. By forming the damper402in each of the first side, the second side and the third side of the second accommodating portion420, even if the loading target part100moves within the tray400, the first adhesive layer212and the second adhesive layer222may not contact or rub up against the tray400.

Turning now toFIGS.11and12,FIG.11is another variation of the embodiment ofFIG.6focusing in on the second accommodating portion420, andFIG.12is a schematic cross-sectional view taken along line II-IF ofFIG.11. Referring toFIGS.11and12, a hole304may be formed in the edge portion320of the cover film300. The second accommodating portion420may further include the fixing portion490capable of being inserted into hole304formed in the edge portion320.

In the schematic cross-sectional view ofFIG.12, the fixing portion490may have a conical shape. The conical shape may have a diameter decreasing from the cover film300upwards in the third direction DR3. For example, the fixing portion490may have the conical shape with the diameter decreasing from the bottom surface of the tray400in the third direction DR3. Accordingly, even if the loading target part100moves within the tray400, the first adhesive layer212and the second adhesive layer222may not contact the tray400.

In an embodiment, the fixing portion490of the tray400and a remainder of the tray400may be integral with each other upon the forming of the tray400. For example, the tray400including the fixing portion490in the second accommodating portion420may be manufactured by pressing in the mold. By having the fixing portion490integral with the tray400, the fixing portion490may include a same material as the first accommodating portion410and the second accommodating portion420.

In another variation of the embodiment ofFIGS.11and12, the fixing portion490may be detachable from the second accommodating portion420of the tray400. When the fixing portion490is detachable, the fixing portion490may be made out of a same or a different material as that of the first accommodating portion410and the second accommodating portion420. In case that the hole304may not be formed in one or more of the edge portions320of the cover film300, the fixing portion490may be detached from the second accommodating portion420of the tray400to allow the cover film300to be accommodated in the tray400. In case that the hole304may be formed in the edge portion320of the cover film300, the fixing portion490may penetrate the hole304. Multiple fixing portions490may be included up to the number of holes304formed in the cover film300. For example, the fixing portion490may be present in each of the second accommodating portions420.

Although the above has been described with reference to embodiments of the disclosure, a person having ordinary knowledge in the relevant technical field may be modified and changed variously the disclosure without departing from the technical spirit and scope of the disclosure described in the following claims.

The disclosure may be applied to a method of manufacturing of, a display device and an electronic device including the display device. For example, the disclosure may be applied to the method of manufacturing of high-resolution smartphone, cell phone, smart pad, smart watch, table personal computer, navigation system for vehicle, television, computer monitor, notebook, the like, or a combination thereof.

In concluding the detailed description, those skilled in the art will appreciate that many variations and modifications can may be made to the preferred embodiments without substantially departing from the principles and spirit and scope of the present disclosure. Therefore, the disclosed preferred embodiments of the invention are used in a generic and descriptive sense only and not for purposes of limitation.