Case for transporting printed circuit board assemblies and tray module comprising same

Abstract

A box for transporting a printed circuit board assembly includes a first side wall, an inclined surface, a second side wall, and a plurality of protrusions. The sloped surface may extend from the first sidewall. The second sidewall may be spaced from the sloped surface. A plurality of protrusions may be located between the sloped surface and the second sidewall. The plurality of protrusions may include a first protrusion adjacent to the first sidewall and a second protrusion adjacent to the second sidewall. A first distance between an imaginary plane connecting an upper surface of the first sidewall and an upper surface of the second sidewall and the first protrusion may be greater than a second distance between the imaginary plane and the second protrusion.

Description

Technical Field

[0001] The embodiments relate to a case for transporting a printed circuit board assembly. More specifically, the embodiments relate to a case for transporting a printed circuit board assembly and a tray module including the case for transporting a printed circuit board assembly. Background Art

[0002] A display device may include a display panel and a driving circuit. Display devices having various shapes and structures may be provided depending on the form of the display panel and the connection method of the driving circuit, etc.

[0003] In a manufacturing process of a display device, each of the display panel and the driving circuit may be accommodated in a separate space within a tray module. For display panels and driving circuits having various shapes and structures, the assemblability and stability may vary. Summary of the Invention

[0004] Technical Problem

[0005] Embodiments provide a case for transporting a printed circuit board assembly.

[0006] Embodiments provide a tray module including a case for transporting a printed circuit board assembly.

[0007] Technical Solution

[0008] A case for transporting a printed circuit board assembly according to an embodiment of the present disclosure may include: a first sidewall, an inclined surface, a second sidewall, and a plurality of protrusions. The inclined surface may extend from the first sidewall. The second sidewall may be spaced apart from the inclined surface. The plurality of protrusions may be located between the inclined surface and the second sidewall. The plurality of protrusions may include a first protrusion adjacent to the first sidewall and a second protrusion adjacent to the second sidewall. A first distance between a virtual plane connecting upper surfaces of the first sidewall and the second sidewall and the first protrusion may be greater than a second distance between the virtual plane and the second protrusion.

[0009] In an embodiment, a distance between the virtual plane and each of the plurality of protrusions may gradually increase from the second protrusion toward the first protrusion.

[0010] In an embodiment, a difference between the first distance and the second distance may be about 10 millimeters or less.

[0011] In an embodiment, a horizontal height of a bottom surface of the plurality of protrusions may be different from a horizontal height of a bottom surface of the first sidewall and a horizontal height of a bottom surface of the second sidewall, respectively.

[0012] In an embodiment, a horizontal height of a bottom surface of the plurality of protrusions may be greater than a bottom surface of the first sidewall and a bottom surface of the second sidewall, respectively.

[0013] In one embodiment, the box for transporting the printed circuit board assembly may further include a plurality of grooves adjacent to the plurality of protrusions. The plurality of grooves may contact the protective member accommodating the printed circuit board assembly.

[0014] In one embodiment, the length of the protection member in the extending direction may be greater than the length of the printed circuit board assembly in the extending direction.

[0015] In one embodiment, the length of the protection member in the extension direction may be greater than the length of the printed circuit board assembly in the extension direction by about 20 mm or more and less than about 40 mm or less.

[0016] In an embodiment, the protection member may protrude a predetermined distance from the imaginary plane.

[0017] In one embodiment, the predetermined distance may be greater than about 0 mm and less than about 10 mm.

[0018] A tray module according to an embodiment of the present disclosure may include a tray and a box for transporting a printed circuit board assembly. The tray may include a first accommodating portion and a second accommodating portion spaced apart from the first accommodating portion. The first accommodating portion may be defined as a placement space for a display panel. The box for transporting the printed circuit board assembly may be disposed in the second accommodating portion. The box for transporting the printed circuit board assembly may include a first side wall, an inclined surface, a second side wall, and a plurality of protrusions. The inclined surface may extend from the first side wall. The second side wall may be spaced apart from the inclined surface. A plurality of protrusions may be located between the inclined surface and the second side wall. The plurality of protrusions may include a first protrusion adjacent to the first side wall and a second protrusion adjacent to the second side wall. A first distance between an imaginary plane connecting an upper surface of the first side wall and an upper surface of the second side wall and the first protrusion may be greater than a second distance between the imaginary plane and the second protrusion.

[0019] In one embodiment, a distance between the imaginary plane and each of the plurality of protrusions may gradually increase from the second protrusion toward the first protrusion.

[0020] In one embodiment, the difference between the first distance and the second distance may be about 10 mm or less.

[0021] In one embodiment, the levels of the bottom surfaces of the plurality of protrusions may be different from the levels of the bottom surface of the first sidewall and the bottom surface of the second sidewall, respectively.

[0022] In one embodiment, bottom surfaces of the plurality of protrusions may have heights greater than those of the bottom surfaces of the first sidewall and the second sidewall, respectively.

[0023] In one embodiment, the tray module may further include a plurality of grooves adjacent to the plurality of protrusions. The plurality of grooves may contact the protection member accommodating the printed circuit board assembly.

[0024] In one embodiment, the length of the protection member in the extending direction may be greater than the length of the printed circuit board assembly in the extending direction.

[0025] In one embodiment, the length of the protection member in the extending direction may be about 20 millimeters or more and about 40 millimeters or less greater than the length of the printed circuit board assembly in the extending direction.

[0026] In one embodiment, the protection member may protrude a predetermined distance from the imaginary plane.

[0027] In one embodiment, the predetermined distance may exceed about 0 millimeters and be within about 10 millimeters.

[0028] In a case for transporting a printed circuit board assembly according to an embodiment of the present disclosure, the case may include a first side wall, an inclined surface, a second side wall, and a plurality of protrusions. The inclined surface may extend from the first side wall. The second side wall may be spaced apart from the inclined surface. The plurality of protrusions may be located between the inclined surface and the second side wall. The plurality of protrusions may include a first protrusion adjacent to the first side wall and a second protrusion adjacent to the second side wall. A first distance between an imaginary plane connecting upper surfaces of the first side wall and the second side wall and the first protrusion may be greater than a second distance between the imaginary plane and the second protrusion. Accordingly, vertical and horizontal movement of the printed circuit board assembly accommodated in the case for transporting the printed circuit board assembly may be prevented.

[0029] In addition, a tray module according to an embodiment of the present disclosure may include a tray and a case for transporting a printed circuit board assembly. The tray may include a first accommodation portion and a second accommodation portion spaced apart from the first accommodation portion. The first accommodation portion may be defined as an installation space for a display panel. The case for transporting the printed circuit board assembly may be disposed in the second accommodation portion. Accordingly, each of the display panel and the printed circuit board assembly may be stably stored and transported. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 FIG. is a perspective view illustrating a tray module including a case for transporting a printed circuit board assembly according to an embodiment of the present disclosure.

[0031] Figure 2 For illustration of Figure 1 a perspective view of a display module that may be transported together with the tray module.

[0032] Figure 3 For Figure 1 a cross-sectional view taken along line I-I' of

[0033] Figure 4 For illustration of Figure 3 a cross-sectional view of the case of

[0034] Figure 5 For illustration of Figure 3Cross-sectional view of another embodiment of the box.

[0035] Figure 6 For example, a cross-sectional view of a printed circuit board assembly that can be transported together with the Figure 1 tray module. Detailed Description of the Invention

[0036] Hereinafter, a display device according to an embodiment will be described in more detail with reference to the accompanying drawings. The same reference numerals in the drawings are used for the same components, and redundant descriptions of the same components will be omitted.

[0037] Figure 1 Perspective view of a tray module including a box for transporting a printed circuit board assembly according to an embodiment of the present disclosure.

[0038] Referring to Figure 1 , a tray module 1 according to an embodiment of the present disclosure may include a tray TR and a box BX for transporting a printed circuit board assembly.

[0039] The tray TR may include a first receiving portion SP1 and a second receiving portion SP2.

[0040] The first receiving portion SP1 may be defined as a placement space for the display panel DP.

[0041] The second receiving portion SP2 may be spaced apart from the first receiving portion SP1. The box BX for transporting the printed circuit board assembly may be placed in the second receiving portion SP2. Hereinafter, the box BX for transporting the printed circuit board assembly BX is referred to as the box BX.

[0042] The size of the first receiving portion may be different from the size of the second receiving portion SP2. For example, the size of the first receiving portion SP1 may be larger than the size of the second receiving portion SP2. The size of the second receiving portion SP2 may vary according to the size of the printed circuit board assembly.

[0043] The tray TR may include a plurality of second receiving portions SP2. Each of the plurality of second receiving portions SP2 may have a different size. Therefore, the tray TR can accommodate printed board assemblies with different sizes. However, the present disclosure is not limited thereto. For example, the tray TR may include a single second receiving portion SP2. The first receiving portion SP1 may have the same size as the second receiving portion SP2.

[0044] The box BX may accommodate a protective member BAG that houses the printed circuit board assembly. For example, the box BX may accommodate a plurality of protective members BAG.

[0045] In one embodiment, the box BX can be formed separately from the tray TR. Thereafter, the box BX can be inserted into the second receiving portion SP2 of the tray TR. In another embodiment, the tray TR and the box BX can be integrally formed.

[0046] For example, each of the tray TR and the box BX can include expanded polystyrene (EPS), expanded polypropylene (EPP), acrylonitrile-butadiene-styrene copolymer resin (ABS), and the like. These materials can be used alone or in combination with each other. However, the present disclosure is not limited thereto. The tray TR and the box BX can include various materials having impact resistance.

[0047] For example, each of the tray TR and the box BX can be formed by an injection method. However, the present disclosure is not limited thereto. The tray TR and the box BX can be formed by various methods.

[0048] The protective member BAG can be a buffer member for protecting a printed circuit board assembly. For example, the protective member BAG can include a polyethylene resin, latex, a urethane resin, and the like. These materials can be used alone or in combination with each other. However, the present disclosure is not limited thereto, and the protective member BAG can include various materials having elasticity.

[0049] For example, the protective member BAG can include an upper film, a lower film, and an intermediate film. The upper film and the lower film can be composed of flat film paper. The intermediate film can be disposed between the upper film and the lower film to form a filling layer. The intermediate film can have a shape including a plurality of protrusions.

[0050] When the lower film, the intermediate film, and the upper film are laminated and bonded, a protective member BAG in which a plurality of air pockets are arranged in a lattice structure can be formed. However, the present disclosure is not limited thereto, and the protective member BAG can have a structure in which two films are stacked. The upper film, the lower film, and the intermediate film can be bonded by various methods such as heat fusion.

[0051] The label LA can be attached to one surface of the protective member BAG. The label LA can include information about the printed circuit board assembly. For example, the label LA can be provided in the form of a barcode and a QR code, etc. However, the present disclosure is not limited thereto, and the label LA can have various forms. The attachment position of the label LA is not restricted as long as the information about the printed circuit board assembly can be confirmed without removing the protective member BAG from the box BX.

[0052] In one embodiment, the protective member BAG can be accommodated in the box BX so as to contact each of a plurality of grooves (for example, Figure 3 a plurality of grooves GR). Since the box BX includes a plurality of grooves, the labels LA attached to each of the plurality of protective members BAG can be non-overlapping with each other in a plan view. Therefore, the information about the printed circuit board assembly can be confirmed without removing each protective member BAG from the box BX.

[0053] As described above, the tray TR can accommodate each of the display panel DP and the printed circuit board assembly in separate spaces. Specifically, the display panel DP can be accommodated in the first accommodation part SP1, and the printed circuit board assembly can be accommodated in the second accommodation part SP2. The printed circuit board assembly can be accommodated in the protection member BAG, the protection member BAG can be accommodated in the box BX, and the box BX can be disposed in the second accommodation part SP2.

[0054] The trays TR can be stacked in multiple levels on a pallet. The pallet can be a device for supporting the trays TR. The upper surface of the pallet can be flat. Thus, the trays TR can be stacked in multiple levels on the upper surface of the pallet. A movement guiding unit for guiding the movement of the pallet can be located on the lower surface of the pallet. The lower surface can face the upper surface in the first direction DR1.

[0055] Since the display panel DP and the printed circuit board assembly are accommodated in separate spaces, the display panel DP and the printed circuit board assembly can be stored and transported stably. That is, the tray module 1 according to an embodiment of the present disclosure can improve process reliability.

[0056] Figure 2 For example, Figure 1 a perspective view of a display module that can be transported together with the tray module.

[0057] Referring to Figure 2 , the display module DM can include a display panel DP and a printed circuit board assembly DB. The printed circuit board assembly DB can correspond to Figure 1 the printed circuit board assembly. For example, the printed circuit board assembly DB can be a control printed circuit board assembly (C-PBA).

[0058] The display panel DP can include an organic light emitting display panel, a liquid crystal display panel, a plasma display panel, an electrophoretic display panel, an electrochromic and electrowetting display panel, etc. However, the present disclosure is not limited thereto, and the display panel DP is not restricted as long as the device can display an image.

[0059] The display panel DP can have a hexahedral shape. However, the present disclosure is not limited thereto, and the display panel DP can have various shapes, such as a hexahedral shape with rounded corners and a cylindrical shape.

[0060] When the display panel DP has a hexahedral shape, the display panel DP may include a front surface FS, a rear surface, and a plurality of side surfaces S1, S2, S3, S4. For example, the front surface FS and the rear surface may face each other in the first direction DR1. Each of the front surface FS and the rear surface may be a plane defined by a second direction DR2 and a third direction DR3. Each of the second direction DR2 and the third direction DR3 may intersect the first direction DR1. For example, each of the second direction DR2 and the third direction DR3 may be perpendicular to the first direction DR1.

[0061] The front surface FS of the display panel DP may be defined as the surface on which an image is displayed. The front surface FS may be divided into a display area DA and a peripheral area NDA. The display area DA may be an area for displaying an image. The peripheral area NDA may surround the display area DA. Alternatively, the peripheral area NDA may be omitted.

[0062] Each of the plurality of side surfaces S1, S2, S3, S4 of the display panel DP may be connected to the front surface FS and the rear surface. Each of the plurality of side surfaces S1, S2, S3, S4 of the display panel DP may be parallel to the first direction DR1. Hereinafter, the third direction DR3 is also referred to as the thickness direction of the display panel DP. For example, each of the first side surface S1 and the second side surface S2 may be a plane defined by the first direction DR1 and the third direction DR3, and may be parallel to each other. Each of the third side surface S3 and the fourth side surface S4 may be a plane defined by the first direction DR1 and the second direction DR2, and may be parallel to each other. In other words, the first side of the first side surface S1 may be connected to the third side surface S3, and the second side of the first side surface S1 may be connected to the fourth side surface S4. The first side of the second side surface S2 may be connected to the fourth side surface S4, and the second side of the second side surface S2 may be connected to the third side surface S3.

[0063] The display panel DP may include a first base substrate 10, a second base substrate 30, and a pixel layer 20.

[0064] The first base substrate 10 may include an insulating material. For example, the first base substrate 10 having rigid characteristics may include glass. However, the present disclosure is not limited thereto, and the first base substrate 10 may have flexible characteristics.

[0065] The second base substrate 30 may face the first base substrate 10 in the first direction DR1. The first base substrate 10 may define the rear surface of the display panel DP, and the second base substrate 30 may define the front surface FS of the display panel DP.

[0066] The pixel layer 20 may be disposed between the first base substrate 10 and the second base substrate 30. The pixel layer 20 may include light-emitting elements. The light emitted from the light-emitting elements may be combined and displayed as an image.

[0067] The printed circuit board assembly DB may include a base substrate BS, a driving chip IC, and a connection film CF.

[0068] The base substrate BS may have a flexible characteristic. A plurality of components may be mounted on the upper surface and / or the lower surface of the base substrate BS using surface mount technology (SMT). For example, a plurality of components may be mounted on the upper surface and / or the lower surface of the base substrate BS using solder paste.

[0069] The driving chip IC may include a plurality of electronic devices. The driving chip IC may generate an electrical signal. The driving chip IC may receive an electrical signal. The driving chip may process the received electrical signal, and then the driving chip may provide the electrical signal to the outside. For example, the driving chip IC may be disposed on the connection film CF. However, the present disclosure is not limited thereto, and the driving chip IC may be omitted. In this case, the driving chip IC may be directly mounted on the display panel DP.

[0070] The connection film CF may electrically connect the base substrate BS and the display panel DP. However, the present disclosure is not limited thereto, and the connection film CF may be omitted. In this case, the display panel DP and the base substrate BS may be directly electrically connected.

[0071] The printed circuit board assembly DB may be connected to the first side of the display panel DP. For example, the printed circuit board assembly DB may be connected to the first side surface S1 of the display panel DP. However, the present disclosure is not limited thereto, and the printed circuit board assembly DB may be connected to at least one of the second side surface S2, the third side surface S3, and the fourth side surface S4 of the display panel DP.

[0072] In the process of manufacturing the display module DM, the display panel DP and the printed circuit board assembly DB may be accommodated in separate spaces of a tray module (e.g., Figure 1 the tray module 1), and transported by the tray module.

[0073] Figure 3 For the sectional view taken along the Figure 1 I-I' line. Figure 4 For example Figure 3 the sectional view of the box. Figure 5 For example Figure 3 the sectional view of another embodiment of the box.

[0074] For example, Figure 4 the box BX is shown without the protection member BAG in the Figure 3 tray module. Figure 5 The box BX2 of Figure 4 differs from the box BX of Figure 1 only in the shape of the plurality of protrusions PP. Hereinafter, descriptions that are repetitive of the description of the tray module 1 described above with reference to Figure 1 will be omitted or simplified.

[0075] Reference Figure 1 、 Figure 3 、 Figure 4 and Figure 5 According to an embodiment of the present disclosure, the box BX or BX2 included in the tray module 1 may be divided into a base portion SP and a side wall portion surrounding the base portion SP. More specifically, the base portion SP may include an inclined surface IS and a plurality of protrusions PP. The side wall portion may include a first side wall WP1 and a second side wall WP2.

[0076] The inclined surface IS may extend from the first side wall WP1 toward the plurality of protrusions PP. Specifically, the inclined surface IS may extend from the first side wall WP1 in a direction opposite to the third direction DR3.

[0077] The second side wall WP2 may be spaced apart from the inclined surface IS. Specifically, the second side wall WP2 may be spaced apart from the inclined surface IS in a direction opposite to the third direction DR3.

[0078] The plurality of protrusions PP may be located between the inclined surface IS and the second side wall WP2. The plurality of protrusions PP may protrude from the bottom surface BS3 of the base portion SP in the first direction DR1.

[0079] The plurality of protrusions PP may include a first protrusion PP1 and a second protrusion PP2. The first protrusion PP1 among the plurality of protrusions PP may be adjacent to the first side wall WP1. The second protrusion PP2 among the plurality of protrusions PP may be adjacent to the second side wall WP2.

[0080] A plurality of grooves GR may be defined in the box BX or BX2. In one embodiment, the plurality of grooves GR may be adjacent to the plurality of protrusions PP. Specifically, each of the plurality of grooves GR may be located between the plurality of protrusions PP. That is, the plurality of grooves GR may be defined by the plurality of protrusions PP. By defining the plurality of grooves GR in the box BX or BX2, the protection member BAG can be loaded at a certain angle.

[0081] A first distance H1 from the imaginary plane IP connecting the upper surface US1 of the first side wall WP1 and the upper surface US2 of the second side wall WP2 to the first protrusion PP1 may be different from a second distance H2 from the imaginary plane IP to the second protrusion PP2. For example, the first distance H1 from the imaginary plane IP connecting the upper surface US1 of the first side wall WP1 and the upper surface US2 of the second side wall WP2 to the first protrusion PP1 may be larger than the second distance H2 from the imaginary plane IP to the second protrusion PP2. Since the first distance H1 is larger than the second distance H2, movement of the protection member BAG in the first direction DR1 can be prevented.

[0082] In one embodiment, the difference GA1 between the first distance and the second distance may be about 10 millimeters (mm) or less.

[0083] As described above, the tray TR can be stacked in multiple levels on the pallet. When the tray TR is stacked in multiple levels on the pallet, when the difference GA1 between the first distance H1 and the second distance H2 exceeds about 10 mm, the printed circuit board assembly DB located at the bottom of the tray TR may be damaged due to the extrusion of the tray TR. Therefore, the difference GA1 between the first distance H1 and the second distance H2 can be about 10 mm or less.

[0084] In one embodiment, as Figure 4 shown, the distance between the imaginary plane IP and each of the plurality of protrusions PP can gradually increase from the second protrusion PP2 toward the first protrusion PP1.

[0085] In another embodiment, as Figure 5 shown, the second distance H2 between the imaginary plane IP and the second protrusion PP2 can be greater than the distance (e.g., the first distance H1) between the imaginary plane and the remaining protrusions among the plurality of protrusions PP other than the second protrusion PP2. That is, the distance between the imaginary plane and each of the remaining protrusions among the plurality of protrusions PP other than the second protrusion PP2 can be the same.

[0086] The protection member BAG can be loaded in the box BX or BX2 at a certain angle. When the first distance H1 and the second distance H2 are the same, when the tray TR is transported on the pallet, the protection member BAG can move in the first direction DR1. Therefore, when the protection member BAG moves to the blank space VS located between the second side wall WP2 and the second protrusion PP2, the label LA attached to the protection member BAG can overlap. In this case, since the protection member BAG must be taken out of the box BX or BX2 to check the label LA, the working efficiency of checking the label LA can be reduced.

[0087] The tray module 1 according to an embodiment of the present disclosure can include a box BX or BX2 having a first distance H1 greater than the second distance H2. Therefore, the tray module 1 can prevent the protection member BAG from moving to the blank space VS located between the second side wall WP2 and the second protrusion PP2, and prevent the label LA attached to the protection member BAG from overlapping.

[0088] The protection member BAG can have a protruding point EP that protrudes a predetermined distance PL from the imaginary plane IP in the first direction DR1. The protruding point EP of the protection member BAG can be extruded by the tray TR located above. Therefore, the movement of the protection member BAG in the first direction DR1 can be prevented.

[0089] In one embodiment, the predetermined distance between the imaginary plane IP and the protruding point EP can exceed about 0 mm and be within about 10 mm.

[0090] When the protection member BAG does not have a protruding point EP protruding from the imaginary plane IP in the first direction DR1, the protection member BAG may not be squeezed by the upper tray TR. Therefore, when the tray TR moves, the protection member BAG can also move in the first direction DR1. In this case, the protection member BAG can move to the blank space VS between the second side wall WP2 and the second protrusion PP2, so that the label LA attached to the protection member BAG can move to another protection member BAB and can be covered by another protection member BAG. In this case, since the label LA must be inspected by removing the protection member BAG to check the covered label LA, the process efficiency of inspecting the label LA can be reduced.

[0091] On the other hand, when the predetermined distance PL between the imaginary plane IP and the protruding point EP of the protection member BAG exceeds about 10 mm, the printed circuit board may be damaged due to the extrusion of the upper tray TR. Therefore, the predetermined distance PL between the imaginary plane IP and the protruding point EP of the protection member BAG can exceed about 0 mm and can be within about 10 mm.

[0092] In one embodiment, based on the bottom surface of the tray TR, the bottom surface BS3 of the base portion SP and the bottom surfaces BS1, BS2 of the side wall portions may have a step GA2. For example, based on the bottom surface of the tray TR, the horizontal heights of the bottom surfaces BS3 of the plurality of protrusions PP may be different from the horizontal height of the bottom surface BS1 of the first side wall WP1 and the horizontal height of the bottom surface BS2 of the second side wall WP2, respectively. In addition, based on the bottom surface of the tray TR, the horizontal height of the bottom surface BS3 of the plurality of protrusions PP may be different from the horizontal height of the bottom surface BS2 of the second side wall WP2. More specifically, based on the bottom surface of the tray TR, the horizontal height of the bottom surface BS3 of the plurality of protrusions PP may be larger than the horizontal height of the bottom surface BS1 of the first side wall WP1. In addition, based on the bottom surface of the tray TR, the horizontal height of the bottom surface BS3 of the plurality of protrusions PP may be larger than the horizontal height of the bottom surface BS2 of the second side wall WP2.

[0093] The step GA2 between the bottom surface BS3 of the base portion SP and the bottom surfaces BS1, BS2 of the side wall portions may vary according to the size of the printed circuit board assembly DB.

[0094] For example, when the size of the printed circuit board assembly DB is large, the step GA2 between the bottom surface BS3 of the base portion SP and the bottom surfaces BS1, BS2 of the side wall portions may be small. Therefore, damage to the printed circuit board assembly DB caused by the extrusion of the upper tray TR can be prevented.

[0095] On the other hand, when the size of the printed circuit board assembly DB is small, the step GA2 between the bottom surface BS3 of the base portion SP and the bottom surfaces BS1, BS2 of the side wall portions may be large. Therefore, the protective member BAG can be pressed by the tray TR located above, and the movement of the protective member BAG in the first direction DR1 can be prevented. Accordingly, the step GA2 between the bottom surface BS3 of the base portion SP and the bottom surfaces BS1, BS2 of the side wall portions can be formed to prevent the movement of the protective member BAG in the first direction DR1. In addition, the step GA2 between the bottom surface BS3 of the base portion SP and the bottom surfaces BS1, BS2 of the side wall portions can be formed such that the tray TR and the printed circuit board assembly DB are spaced apart from each other.

[0096] Figure 6 For illustration of Figure 1 a cross-sectional view of a printed circuit board assembly transported together with a tray module of.

[0097] Refer to Figure 1 , Figure 3 and Figure 6 , the protective member BAG can accommodate the printed circuit board assembly DB.

[0098] The length L1 of the protective member BAG in the extending direction can be larger than the length L2 of the printed circuit board assembly DB in the extending direction.

[0099] By the pressing of the tray TR located above, the movement of the protective member BAG in the first direction DR1 can be prevented. At this time, since the protective member BAG is formed to be larger than the printed circuit board assembly DB, the tray TR loaded above and the printed circuit board assembly DB can be spaced apart from each other. Accordingly, damage to the printed circuit board assembly DB due to collision with the tray TR can be prevented.

[0100] In one embodiment, the length L1 of the protective member BAG in the extending direction can be about 20 mm or more and about 40 mm or less larger than the length L2 of the printed circuit board assembly DB in the extending direction.

[0101] When the length L1 of the protective member BAG in the extending direction is less than about 20 mm smaller than the length L2 of the printed circuit board assembly DB in the extending direction, it may be difficult to insert the printed circuit board assembly DB into the protective member BAG.

[0102] On the other hand, when the length L1 of the protection member BAG in the extending direction exceeds the length L2 of the printed circuit board assembly DB in the extending direction by about 40 mm, the clamping operation may be difficult. The clamping operation may be an operation in which the device clamps the protection member BAG into which the printed board assembly DB is inserted and places the protection member BAG in the box BX. The chuck may not clamp the portion where the printed circuit board assembly DB is not located (i.e., the blank space). As the length of the protection member BAG increases, the probability of picking up the portion where the printed circuit board assembly DB is not located may increase, and thus the efficiency of the clamping operation may decrease. Therefore, the protection member BAG may be about 20 mm or more and about 40 mm or less larger than the printed board assembly DB.

[0103] Although the embodiments have been described with reference to the accompanying drawings, the illustrated embodiments are examples, and may be modified and changed by those of ordinary skill in the relevant technical field without departing from the technical spirit described in the following claims.

[0104] [Industrial Applicability]

[0105] The box for transporting a printed circuit board and the tray module including the box for transporting a printed circuit board according to the embodiments can be applied to the manufacturing processes of various electronic devices including display devices. For example, the box for transporting a printed circuit board and the tray module including the box for transporting a printed circuit board can be applied to the manufacturing processes of mobile phones, smart phones, video phones, smart tablets, smart watches, tablet personal computers, car navigation systems, televisions, computer monitors, notebook computers, or head-mounted displays, etc.

Claims

1. A box for transporting a printed circuit board assembly, comprising: a first side wall; an inclined surface extending from the first side wall; a second side wall spaced apart from the inclined surface; and a plurality of protrusions located between the inclined surface and the second side wall, and including a first protrusion adjacent to the first side wall and a second protrusion adjacent to the second side wall, wherein a first distance between a virtual plane connecting an upper surface of the first side wall and an upper surface of the second side wall and the first protrusion is greater than a second distance between the virtual plane and the second protrusion.

2. The box for transporting a printed circuit board assembly according to claim 1, wherein a distance between the virtual plane and each of the plurality of protrusions gradually increases from the second protrusion toward the first protrusion.

3. The box for transporting a printed circuit board assembly according to claim 1, wherein a difference between the first distance and the second distance is about 10 millimeters or less.

4. The box for transporting a printed circuit board assembly according to claim 1, wherein horizontal heights of bottom surfaces of the plurality of protrusions are different from a horizontal height of a bottom surface of the first side wall and a horizontal height of a bottom surface of the second side wall, respectively.

5. The box for transporting a printed circuit board assembly according to claim 4, wherein the horizontal heights of the bottom surfaces of the plurality of protrusions are greater than the horizontal height of the bottom surface of the first side wall and the horizontal height of the bottom surface of the second side wall, respectively.

6. The box for transporting a printed circuit board assembly according to claim 1, further comprising: a plurality of grooves adjacent to the plurality of protrusions, and wherein the plurality of grooves contact a protection member for accommodating the printed circuit board assembly.

7. The box for transporting a printed circuit board assembly according to claim 6, wherein a length of the protection member in an extending direction is greater than a length of the printed circuit board assembly in the extending direction.

8. The box for transporting a printed circuit board assembly according to claim 7, wherein the length of the protection member in the extending direction is about 20 millimeters or more and about 40 millimeters or less greater than the length of the printed circuit board assembly in the extending direction.

9. The box for transporting a printed circuit board assembly according to claim 6, wherein the protection member protrudes a predetermined distance from the virtual plane.

10. The box for transporting a printed circuit board assembly according to claim 9, wherein the predetermined distance exceeds about 0 millimeters and is within about 10 millimeters.

11. A tray module, comprising: a tray including a first receiving portion defining a placement space for a display panel and a second receiving portion spaced apart from the first receiving portion; and a box for transporting the printed circuit board disposed in the second receiving portion and including: a first side wall; an inclined surface extending from the first side wall; a second side wall spaced apart from the inclined surface; and A plurality of protrusions are located between the inclined surface and the second sidewall, and include a first protrusion adjacent to the first sidewall and a second protrusion adjacent to the second sidewall, wherein a first distance between an imaginary plane connecting the upper surfaces of the first sidewall and the second sidewall and the first protrusion is greater than a second distance between the imaginary plane and the second protrusion.

12. The tray module according to claim 11, wherein a distance between the imaginary plane and each of the plurality of protrusions gradually increases from the second protrusion toward the first protrusion.

13. The tray module according to claim 11, wherein a difference between the first distance and the second distance is about 10 millimeters or less.

14. The tray module according to claim 11, wherein horizontal heights of bottom surfaces of the plurality of protrusions are different from horizontal heights of the bottom surface of the first sidewall and the bottom surface of the second sidewall, respectively.

15. The tray module according to claim 14, wherein the horizontal heights of the bottom surfaces of the plurality of protrusions are greater than the horizontal heights of the bottom surface of the first sidewall and the bottom surface of the second sidewall, respectively.

16. The tray module according to claim 11, further comprises: a plurality of grooves adjacent to the plurality of protrusions, and wherein the plurality of grooves contact a protection member that houses a printed circuit board assembly.

17. The tray module according to claim 16, wherein a length of the protection member in an extending direction is greater than a length of the printed circuit board assembly in the extending direction.

18. The tray module according to claim 17, wherein the length of the protection member in the extending direction is greater than the length of the printed circuit board assembly in the extending direction by about 20 millimeters or more and about 40 millimeters or less.

19. The tray module according to claim 6, wherein the protection member protrudes a predetermined distance from the imaginary plane.

20. The tray module according to claim 19, wherein the predetermined distance exceeds about 0 millimeters and is within about 10 millimeters.

Images