Display device and method for manufacturing the same

Abstract

The present disclosure relates to a display device and a method for manufacturing the display device. A display device according to one embodiment of the present disclosure includes: a lower substrate; a display element on the lower substrate; a spacer disposed on the lower substrate along a periphery of the lower substrate; and a cover glass disposed on the spacer and covering the lower substrate and the spacer, wherein the spacer includes a first spacer portion and a second spacer portion, wherein at least a portion of the first spacer portion overlaps at least a portion of the second spacer portion.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2021-0133740, filed on October 8, 2021, which is hereby incorporated by reference in its entirety for all purposes.

[0003] TECHNICAL FIELD The present disclosure relates to a waterproof and dustproof display device and a method for manufacturing the display device. Background Art

[0004] Display devices used in televisions (TVs), monitors, smartphones, and other devices have a structure that couples an image display substrate with a cover substrate that protects the image display substrate. The image display substrate contains microcomponents and is therefore sensitive to dust and moisture. Therefore, the waterproof and dustproof capabilities of the display device can affect the product's lifespan.

[0005] A display device may include a sealing member, which is interposed between substrates and formed as a single piece along the periphery of the substrates, to provide waterproof and dustproof protection for the display device. For example, a monolithic sealing member may be formed by removing an inner portion of a material having the same dimensions as the display device, leaving only the thickness of the sealing member. In this case, there is a problem: the remaining material cannot be used to repeatedly manufacture sealing members of the same dimensions, resulting in reduced productivity.

[0006] Another problem is that air is contained in the process of placing the sealing member on the substrate and covering the sealing member with the cover substrate, but the air cannot escape due to the monolithic type sealing member, thereby forming excessive air gaps in the display device. Summary of the Invention

[0007] Therefore, an object of the present disclosure includes, but is not limited to, providing a display device that is excellent in waterproofness and dustproofness and has high productivity, and a method for manufacturing the display device.

[0008] In one embodiment, a display device includes: a lower substrate; a display element on the lower substrate, the display element being configured to emit light; a pad arranged on the lower substrate along the periphery of the lower substrate, the pad including a first portion pad and a second portion pad, wherein a portion of the first portion pad overlaps with a portion of the second portion pad on the lower substrate; and a cover glass on the pad, the cover glass covering the lower substrate and the pad.

[0009] In one embodiment, a method for manufacturing a display device includes: disposing a first portion pad on a lower substrate along the periphery of the lower substrate on which a display element is disposed; disposing a second portion pad on the lower substrate along the periphery of the lower substrate so that a portion of the first portion pad overlaps with a portion of the second portion pad; disposing a cover glass on the first portion pad and the second portion pad so that the cover glass covers the lower substrate, the first portion pad, and the second portion pad; and compressing the lower substrate and the cover glass so that the gap between the first portion pad and the second portion pad is reduced.

[0010] In one embodiment, a display device includes: a lower substrate; a display element on the lower substrate, the display element being configured to emit light; a pad arranged on the lower substrate along a periphery of the lower substrate, the pad including a first portion pad and a second portion pad, wherein a portion of the first portion pad overlaps with a portion of the second portion pad on the lower substrate; and a cover glass on the pad, the cover glass covering the lower substrate and the pad, wherein, after compressing the lower substrate, the pad and the cover glass, the innermost and outermost edges of the first portion pad or the innermost and outermost edges of the second portion pad do not extend beyond the outermost outer edge of the first portion pad or the outermost outer edge of the second portion pad, respectively, in a plan view of the display device.

[0011] In various embodiments of the present disclosure, configurations of overlapping portion pads are disclosed.

[0012] Compared to manufacturing a single-piece gasket, manufacturing a composite gasket has superior productivity. Specifically, the method for manufacturing a composite gasket can mass-produce a large number of gaskets using a single material, significantly reducing the amount of wasteful material. Therefore, the method for manufacturing a composite gasket has the effect of reducing the cost involved in producing the gasket, and thus, the display device.

[0013] Furthermore, the overlapping arrangement of the gaskets offers the advantage of ensuring superior waterproof and dustproofing compared to simply placing the gaskets in close contact. Specifically, the overlapping arrangement of the gaskets can resolve the problem of deteriorating waterproof and dustproofing due to gaps formed between the gaskets when simply placing the gaskets in close contact.

[0014] In addition, compared to a single-piece sealing member, the display device according to various embodiments of the present disclosure can reduce the air gap that occurs during the manufacturing process of the display device. By overlapping the spacers and pressing the cover glass and substrate closer together, air can escape and the display device can maintain an appropriate air gap.

[0015] According to some embodiments of the present disclosure, based on various shapes of partial gaskets and overlapping patterns between the partial gaskets, the display device may have improved waterproof and dustproof capabilities and better finish.

[0016] Furthermore, according to some embodiments of the present disclosure, based on the arrangement of part of the gasket and the layered structure of the gasket, the display device has excellent waterproof and dustproof capabilities, or has an effect of compensating for dimensional deformation during a manufacturing process, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view illustrating a display device according to an embodiment of the present disclosure.

[0018] Figure 2 is a cross-sectional view illustrating a display device according to an embodiment of the present disclosure.

[0019] Figure 3 is a cross-sectional view illustrating an overlapping area of ​​a portion of a gasket of a display device according to an embodiment of the present disclosure.

[0020] Figure 4 is a cross-sectional view illustrating an air gap during a manufacturing process of a display device according to an embodiment of the present disclosure.

[0021] 5A to 5D Top views showing examples of various shapes of partial pads according to embodiments of the present disclosure are shown.

[0022] Figure 6 is a cross-sectional view showing that the spacer protrudes outside the substrate in an overlapping configuration.

[0023] Figure 7 is a top view showing a portion of a gasket according to another embodiment of the present disclosure.

[0024] Figures 8A to 8D is a top view of a cushion according to various embodiments of the present disclosure;

[0025] Figure 9 is a diagram illustrating the shape of a portion of a gasket manufactured according to an embodiment of the present disclosure.

[0026] FIG. 10A to FIG. 10B A top view of a protrusion of a portion of a cushion is shown in accordance with an embodiment of the present disclosure.

[0027] Figures 11A to 11B is a top view illustrating the configuration of a protrusion according to an embodiment of the disclosure.

[0028] Figure 12 is a top view illustrating the configuration of a protrusion according to another embodiment of the present disclosure.

[0029] Figure 13 is a cross-sectional view illustrating a multilayer liner according to an embodiment of the present disclosure.

[0030] Figure 14 A cross-sectional view of an overlapping region of a multi-layer liner according to an embodiment of the present disclosure is shown.

[0031] Figure 15 shows the properties of a stretchable substrate layer and a polyethylene terephthalate (PET) substrate layer according to embodiments of the present disclosure;

[0032] 16A to 16B shows reworking of a display device according to various substrate layers according to an embodiment of the present disclosure;

[0033] Figure 17 and Figure 18 is a view of a spacer to which resin is applied prior to compressing the cover glass according to an embodiment of the present disclosure; and

[0034] Figure 19 is a view of a spacer to which resin is applied after compressing a cover glass according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] For the sake of clarity and conciseness, descriptions not related to the present disclosure will be omitted, and the same reference numerals will be used throughout the description and drawings to refer to the same or like components.

[0036] Hereinafter, the embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings, so that those skilled in the art can easily practice the technical concept of the present disclosure. However, the present disclosure should be interpreted as including various modifications and changes and not limited to the following embodiments.

[0037] It should also be noted that when the embodiment can be implemented in different ways, the specific processing may not occur in the order noted in the description. For example, two consecutive processing steps may be performed substantially simultaneously or in an order opposite to the order described.

[0038] In the accompanying drawings, the size of each component may be enlarged or reduced for clarity of explanation. For example, for ease of explanation, the size and thickness of each component in the accompanying drawings are arbitrarily represented, and the present disclosure is not necessarily limited thereto.

[0039] Hereinafter, a display device is disclosed that includes a gasket for waterproofing and dustproofing between a lower substrate on which a display element is provided and a cover glass covering the lower substrate. More specifically, a display device including a partial gasket and having an overlapping structure of the partial gasket is disclosed.

[0040] Figure 1 is a top view showing a display device according to an embodiment of the present disclosure, and Figure 2: is a cross-sectional view showing a display device according to an embodiment of the present disclosure. Figure 1 In FIG, it should be understood that the cover glass is transparent and therefore not shown. Figure 2 The configuration of the cover glass can be clearly identified in the cross-sectional view.

[0041] Reference Figure 1 The display device 100 according to an embodiment of the present disclosure includes: a lower substrate 110 on which a display element is provided; a spacer 120 (e.g., a sealing member) provided on and along the periphery of the lower substrate 110; and a cover glass 310 provided on the spacer 120 and covering the lower substrate 110. In addition, the spacer 120 may be configured to include a first portion of the spacer 122 and a second portion of the spacer 124, wherein at least a portion of the first portion of the spacer 122 and at least a portion of the second portion of the spacer 124 overlap.

[0042] The lower substrate 110 may be a known substrate used to display images in a liquid crystal display device or an organic electroluminescent display device. The lower substrate 110 may be formed of glass, plastic, or the like. The display elements provided on the lower substrate 110 may include known configurations such as thin film transistors (TFTs), pixel electrodes, a liquid crystal layer, and / or an organic light emitting element.

[0043] The cover glass 310 may be a known substrate that is provided to cover the lower substrate 110 and is used to protect the lower substrate from dust, oxygen, moisture, or other physical elements. The cover glass may be formed of glass, plastic, or the like.

[0044] The gasket 120 may be interposed between the lower substrate 110 and the cover glass 310 and along the periphery of the lower substrate 110. The gasket 120 (e.g., a sealing member) may provide waterproof and dustproof functions by sealing the space between the lower substrate 110 and the cover glass 310. In addition, the gasket 120 in the display device 100 may be used to attach the lower substrate 110 and the cover glass 310 together.

[0045] Hereinafter, the description will be mainly focused on a display device in which the spacer 120 is disposed on the lower substrate 110 and the cover glass 310 is disposed on the spacer 120. The term "on" refers to "an upper position in a cross-sectional view." However, the upper position here is merely used to illustrate the relative positional relationship between configurations based on the lower substrate being the lower position, and is therefore not necessarily limited to an upper position in the vertical direction.

[0046] In an embodiment, the term “disposed along the periphery” means disposed on a boundary portion of a substrate and parallel to an edge. Figure 1 It is shown that the gasket 120 according to the embodiment is provided along the periphery of the lower substrate 110 .

[0047] The liner 120 mainly refers to the entire layer disposed entirely around the periphery, and the individual portions of the liner 120 are mainly referred to as partial liners 122, 124, 126, and 128. However, a single partial liner as a liner component may also be referred to as a "liner" when necessary. Whether the term "liner" refers to the entire liner or a partial liner can be clearly understood by those skilled in the art based on the drawings and the description of the present disclosure.

[0048] The spacer 120 may have a considerable thickness to prevent or at least reduce the penetration of air, dust, water, etc. into the space between the lower substrate 110 and the cover glass 310, and in one embodiment may have a thickness of at least 0.1 mm. For a display device capable of touch input processing, a thickness of several millimeters or less is preferred.

[0049] In addition, the spacer 120 may include a material having adhesive properties for attaching the lower substrate 110 to the cover glass 310. In an embodiment, the spacer 120 may include a spacer layer having interfacial adhesive properties. The spacer 120 may be attached to the lower substrate 110 below the spacer and to the cover glass 310 on the spacer, thereby supporting the display device 100.

[0050] In one embodiment, the liner 120 may preferably include a closed-cell foam acrylic adhesive (hereinafter referred to as "acrylic adhesive"). Acrylic adhesives may be waterproof, inherently adhesive, and elastically deformable due to their excellent elasticity. Furthermore, acrylic adhesives can adhere in an elastically deformed state. For example, the liner may include acrylic adhesive and have a density of 0.8 g / cm3 to 1.0 g / cm3, but is not limited thereto.

[0051] The spacer 120 may be a single layer or may have a multi-layer structure including another layer. For example, the spacer 120 may be configured with a single spacer layer including an acrylic adhesive, or may further include a substrate layer to increase the attachment strength to the lower substrate 110 and the cover glass 310. In one embodiment, the spacer layer may account for 50% to 100% of the total thickness of the spacer, but is not limited thereto. Here, "thickness" refers to the length of a layer in a cross-sectional view.

[0052] Depending on the embodiment, the gasket 120 may be formed in a modular manner. Here, the term "combined gasket" is a concept distinguished from a single-piece gasket and refers to a method in which a plurality of partial gaskets are combined in a sheet form to form a whole gasket, or a gasket produced in this manner. In other words, a modular gasket is formed by combining partial gaskets. For example, the gasket may include a first partial gasket and a second partial gasket.

[0053] As described above, the conventional technology for producing a one-piece type sealing element is disadvantageous in terms of cost because it results in a large amount of waste material and low production efficiency.

[0054] However, compared with manufacturing a single-piece gasket, the method of producing a composite gasket has an excellent effect of improving the gasket production efficiency. Specifically, the method of producing a composite gasket can provide more gaskets with gasket materials compared with a single-piece gasket, and can significantly reduce the amount of waste and discarded materials. For example, by Figure 5A The method of mass-producing gaskets using the gasket material of the shape shown can achieve a significant improvement in production efficiency. Therefore, the method of producing a composite gasket has the effect of reducing the costs involved in producing the gasket and thus the display device.

[0055] In addition, the method for producing a composite gasket has the advantage of allowing the gasket to have various shapes. The method for producing a composite gasket can provide additional advantageous effects by changing the shape of the gasket portion or the combination structure between the gasket portions. Various shapes and combination structures of the gasket portions will be described in various embodiments.

[0056] Reference Figure 3 , describing the overlap of partial pads according to the present disclosure.

[0057] Figure 3 is a cross-sectional view showing an overlapping area of ​​a portion of a gasket of a display device according to an embodiment of the present disclosure, and corresponds to a cross-sectional view along Figure 1 . In an embodiment, in the gasket 120, a plurality of partial gaskets are configured to be combined by overlapping the plurality of partial gaskets. For example, the gasket 120 is configured so that at least a portion of the first partial gasket 122 and at least a portion of the second partial gasket 124 overlap. Here, the term "overlap" refers to a state in which one gasket is on top of another gasket in a layered structure of a display device. The term "layered structure" refers to a structure in which the lower substrate 110, the gasket 120, and the cover glass 310 are stacked in layers in a cross-sectional view.

[0058] One partial pad may be positioned over another partial pad to overlap. Figure 3 A view in which the first partial pad 122 is overlapped on the second partial pad 124 is shown, but this is exemplary and the arrangement order between the first partial pad 122 and the second partial pad 124 may be reversed.

[0059] The pad has a predetermined thickness and can therefore be deformed to be flattened in width when compressed by pressure. Hereinafter, this state is therefore referred to as "deformed". Figure 2As shown, when the lower substrate 110 and the cover glass 310 are compressed, the spacer 120 is deformed. According to an embodiment, the spacer 120 may be formed of a single spacer including an acrylic adhesive and increased in width by 1.88 cm. 2 The area corresponding to 20% of the thickness under 0.42 MP pressure is flattened at the same time. The liner layer can be deformed to different degrees depending on the composition of the acrylic adhesive included, the thickness of the liner, etc.

[0060] like Figure 3 As shown, when the first and second partial gaskets 122 and 124 overlap, a gap 410 may occur between the first and second partial gaskets 122 and 124 due to the thickness of the partial gaskets. Air or the like may pass through the gap 410.

[0061] When pressure is applied to compress the lower substrate 110 and the cover glass 310, the first portion of the spacer 122 and the second portion of the spacer 124 may be deformed. As the applied pressure increases, the degree of deformation may be greater.

[0062] When the degree of deformation is large enough, the first partial gasket 122 and the second partial gasket 124 can be deformed to be sufficient to contact each other at the gap 410 and thereby fill the gap 410. Since each of the partial gaskets has adhesiveness, the first partial gasket 122 and the second partial gasket 124 can contact and adhere to each other at the gap 410. Therefore, even in the case of deformation recovery when the pressure is removed, the first partial gasket 122 and the second partial gasket 124 still remain adhered to each other, and the gap 410 can remain filled. Therefore, the cross-section of the gaskets that adhere to each other can form a complete barrier without any gaps therein, thereby ensuring waterproof and dustproof functions. In addition, there is almost no height difference between the overlapping portion and the non-overlapping portion in the display device.

[0063] Due to mechanical and physical limitations, simply arranging the combined gaskets as close together as possible without any overlap can result in gaps. Manually aligning the gaskets so they are in contact side by side typically results in gaps of approximately 0 mm to 0.3 mm, which degrades waterproof and dustproof performance. In the display devices according to various embodiments of the present disclosure, arranging the gaskets in an overlapping manner ensures superior waterproof and dustproof protection, compared to simply arranging the combined gaskets in close contact.

[0064] Figure 4 is a cross-sectional view illustrating an air gap 510 during a manufacturing process of a display device according to an embodiment of the present disclosure.

[0065] Reference Figure 4 , an air gap 510 between the lower substrate 110 and the cover glass 310 according to an embodiment is described.

[0066] refer to Figure 4 , showing a lower substrate 110 , a cover glass 310 , a spacer 120 disposed between the lower substrate 110 and the cover glass 310 , and an air gap 510 .

[0067] The display device according to the embodiment of the present disclosure can reduce the air gap 510 generated in the manufacture of the display device by configuring the type of spacer provided between the lower substrate 110 and the cover glass 310 as a combination type. In more detail, the display device can allow air to escape through the gap 510 during the overlapping and compression process of the spacer 120, and thus the air gap 510 can be maintained at an appropriate level. The air gap 510 refers to a certain air layer formed between the lower substrate and the cover glass by providing the spacer 120 at the substrate boundary, and although the air gap 510 cannot be completely eliminated, it needs to be maintained at a moderate level. The pressure and speed used for the compression process of the display device can be adjusted so that the air can fully escape through the gap 510.

[0068] Conventional technology has the following problem: air is trapped during the process of placing a monolithic sealing member on a substrate and adding a cover substrate thereon. However, the monolithic sealing member prevents the air from escaping, resulting in excessive air gap expansion in the display device. For this reason, conventional display devices may suffer from poor product finish, and an excessively large air gap 510 may also lead to degraded touch functionality, particularly in panels capable of touch input.

[0069] The display device according to the present disclosure, in which the combined gaskets are arranged in an overlapping manner, can provide a solution to the conventional problem of excessively formed air gaps. That is, the display device including the combined partial gaskets arranged in an overlapping manner can have improved gasket production efficiency, and also exhibit excellent waterproof and dustproof characteristics through improved sealing effect, and can minimize the air gap to a desired level.

[0070] Embodiment of the protrusion

[0071] Reference 5A to 5D and Figure 6 , various embodiments of partial pads of the present disclosure are described.

[0072] 5A to 5D A top view illustrating examples of various shapes of partial pads according to embodiments of the present disclosure is shown. In an embodiment, a partial pad 600 may have a central portion 610 and a protrusion 620. For example, a first partial pad may have a first central portion and a first protrusion, and a second partial pad may have a second central portion and a second protrusion.

[0073] The center portion 610 is a portion of the gasket having a relatively large width and corresponds to the main body of the gasket. It can play a significant role in attaching the lower substrate to the cover glass and supporting the display device. Here, the width corresponds to the length in the plan view and refers to the vertical length in Figure 5. The protrusion 620 can be arranged on the side surface of the center portion 610 and can have a width smaller than the width of the center portion 610. In other words, the protrusion 620 extends from the center portion 610.

[0074] According to an embodiment, the first portion of the liner may include a first central portion and a first protrusion having a width smaller than that of the first central portion, and the second portion of the liner may include a second central portion and a second protrusion having a width smaller than that of the second central portion. In addition, the liner may be configured such that at least a portion of the first protrusion overlaps at least a portion of the second protrusion.

[0075] Because the overlapped portion of the gasket can be flattened and widened during compression, it can interfere with the adhesion of surrounding areas, or its adhesion can be interfered with by surrounding areas. Furthermore, if the overlap is performed over an excessively large area, gasket 120 may recover excessively from deformation when the pressure is removed after the compression process, causing the display device to vertically lift. Therefore, the overlapped area needs to be formed to a reasonable size within a range that ensures waterproof and dustproof functions.

[0076] The spacers overlapped at the narrow protrusion may be sufficiently flattened in width when compressed, which provides an effect of allowing the lower substrate 110 and the cover glass 310 to be ideally compressed without any height difference.

[0077] Since the portion where the spacer overlaps is planarized while being compressed while increasing in width, the portion may protrude to the outside of the lower substrate 110 or the cover glass 310 in a cross-sectional view.

[0078] Reference Figure 6 When a portion of the gasket overlaps on the outermost boundary of the lower substrate, the gasket 120 may protrude outside the lower substrate 110. The portion protruding outside may impair the appearance and cause the bezel of the display device to become larger.

[0079] In an embodiment, the gasket 120 may be configured to have a concave area at one or more corners in a plan view so as not to protrude to the outside of the substrate.

[0080] exist Figure 5A In the embodiment, the protrusion of the partial pad is in a shape in which the upper end of the partial pad is retracted. When the partial pad is configured in this way, one or more recessed areas can be formed at the corners where the partial pads are combined with each other. Figure 1The recessed area 140 is shown formed at the corner. Therefore, after the lower substrate 110, the spacer 120, and the cover glass 310 are compressed, the innermost and outermost edges of the first portion spacer 122 or the innermost and outermost edges of the second portion spacer 124 do not extend beyond the outermost outer edge of the first portion spacer 122 or the outermost outer edge of the second portion spacer 124, respectively, in a plan view of the display device.

[0081] exist Figure 5B In the embodiment, the protrusion of the partial pad is in a shape in which the lower end of the partial pad is retracted, and in this case, no concave area is formed at the corner where the partial pads are combined, and the pads can protrude to the outside when overlapped. Figure 5A 、 Figure 5C or Figure 5D The shape of the portion of the liner that can form a concave area at the corner where the liner is combined with Figure 5B When the shape of the protrusion is configured in this way, the pad does not protrude to the outside of the substrate and thus has a good finish.

[0082] Recently, a so-called zero (0) bezel, in which the bezel size is reduced, has attracted widespread attention in all display device fields, from small devices such as mobile phones and medium-sized devices such as tablet computers to large devices such as TVs. In order to achieve a zero bezel, the display device has a portion for bonding or sealing on the outermost boundary of the edge portion of the substrate. If the gasket is set so as not to protrude to the outside of the substrate even after being compressed, the display device may be better in design perspective and avoid unnecessary increase in the bezel size.

[0083] Partial pad arrangement

[0084] Reference 5A to 5D and Figures 7 to 9 , various embodiments of the shapes of partial pads and arrangements of partial pads according to the present disclosure are described.

[0085] Reference 5A to 5D , depicting a partial gasket in an I-shape. In an embodiment, the partial gasket 600 may be formed in an I-shape.

[0086] Reference Figure 7 , an L-shaped partial gasket 700 is described. In another embodiment, the partial gasket may be formed in an L shape. For example, the L-shaped partial gasket 700 may have an L shape in which the central portion 710 is bent, and protrusions 720 may be provided at both ends of the central portion 710.

[0087] Reference Figure 8A , describes the arrangement of some pads on the lower substrate 110 of the present disclosure. Some pads may have various arrangements. The lower substrate 110 is not Figure 8A According to an embodiment, I-shaped partial gaskets may be provided on an upper portion, a lower portion, a left portion, and a right portion of the lower substrate 110, respectively. Figure 8A A top view illustrating first partial pad 122 at an upper portion of the lower substrate, second partial pad 124 at a right portion of the lower substrate, third partial pad 126 at a lower portion of the lower substrate, and fourth partial pad 128 at a left portion of the lower substrate is shown.

[0088] In an embodiment, the first portion of the pad 122 and the second portion of the pad 124 may meet at the corner of the upper right portion. The portion where the pads meet may be where they overlap, forming an overlap region 130. The term ping refers to an overlap as described above.

[0089] In the present disclosure, the terms "upper portion, left portion, right portion, and lower portion" may describe relative positional relationships. Any one of the upper portion, left portion, right portion, and lower portion is represented as an edge portion. In a plan view of the lower substrate, the term upper portion may refer to a portion at the top side, the term lower portion may refer to a portion at the bottom side, and the term one side portion may refer to a portion at the left side or a portion at the right side. A corner may refer to a portion at the corner with respect to the lower substrate. Figure 1 The shape of the lower substrate corresponds to the vertex or the vicinity of the position of the portion of the pad combination in the rectangle. In addition, in the present disclosure, the terms "up, left, right, and down" may indicate directions. The term "up" may refer to a direction pointing to the top side based on a horizontally long rectangular display device as a reference.

[0090] Although the present disclosure is mainly described based on a horizontally long rectangle, which is a general shape of a display device, it is not necessarily limited thereto, and since the display device may have a vertically long shape, directions and parts can be understood by various embodiments based on reference. For example, if a first portion of pads is provided in the upper portion and a second portion of pads is provided in the right portion, those skilled in the art will easily recognize that the first portion of pads on the right portion and the second portion of pads on the lower portion have the same phase when rotated 90 degrees clockwise, and it should be understood that the description herein encompasses such a concept.

[0091] Reference Figure 8B , describes an arrangement of L-shaped partial pads according to one embodiment. Figure 8B is a top view showing a portion of a pad according to another embodiment of the present disclosure. Figure 8B, the lower substrate 110 is not shown. In an embodiment, the first portion of the gasket 810 may be arranged to extend from the upper portion, the left portion, of the lower substrate, and the second portion of the gasket 820 may be arranged to extend from the right portion to the lower portion of the lower substrate. Here, the term "arranged to extend" refers to an arrangement that covers two or more edge portions in an L-shape. If any one of the left and right portions is referred to as a side portion, the other may be referred to as the opposite side portion of the one side portion.

[0092] When part of the gasket is L-shaped, the gasket can achieve the desired effect expected by the combination gasket, and the overlapping arrangement of the combination gasket has only two overlapping areas.

[0093] Figure 8C A gasket according to another embodiment of the present disclosure is shown. A first partial gasket 830, a second partial gasket 840, a third partial gasket 850, and a fourth partial gasket 860 are respectively arranged on the upper portion, right portion, lower portion, and left portion of the lower substrate, and the first partial gasket 830 and the third partial gasket 850 arranged on the long side may include multiple sub-partial gaskets. That is, the first partial gasket 830 may include two sub-partial gaskets 832 and 834, and the third partial gasket 850 may include two sub-partial gaskets 852 and 854. Here, when a partial gasket includes multiple partial gaskets, the term "sub-partial gasket" is used to distinguish between the multiple partial gaskets. When describing the relationship between the sub-partial gaskets, these sub-partial gaskets may be referred to as partial gaskets. The gasket 120 may include grooves 836 and 838 formed by combining the partial gaskets or sub-partial gaskets.

[0094] If the size of the part pad is made smaller, there are advantages in production. Figure 10A 、 10B , 11A, 11B and 12 describe in detail an embodiment in which a plurality of small-sized partial gaskets are provided to be combined at the middle portion of the edge portion.

[0095] Figure 8D 1 shows a gasket according to another embodiment of the present disclosure. A first portion gasket 875, a second portion gasket 880, a third portion gasket 885, and a fourth portion gasket 890 are respectively disposed on the upper portion, right portion, lower portion, and left portion of the lower substrate, and may each include a plurality of sub-partial gaskets. For example, the first portion gasket 875 may have a structure combining two sub-partial gaskets 872 and 874, the second portion gasket 880 may have a structure combining two sub-partial gaskets 876 and 878, the third portion gasket 885 may have a structure combining two sub-partial gaskets 882 and 884, and the fourth portion gasket 890 may have a structure combining two sub-partial gaskets 886 and 888.

[0096] The partial pads or sub-partial pads can be arranged to contact one another. For example, the sub-partial pads 872 and 874 of the first partial pad 875 are arranged to contact each other at the middle portion of the upper portion. The partial pads or sub-partial pads can be arranged to form a groove 873.

[0097] The gasket 120 may include a groove 873. The groove 873 may refer to an empty space (e.g., a gap) in a plan view that is formed when a portion of the gasket or a sub-partial gasket is combined. The groove 873 may provide various effects, such as allowing resin to be effectively applied thereto.

[0098] The first portion pad 875 and the second portion pad 880 may be arranged to share more than two contact edges at a corner. Figure 8D The first and second partial pads 875, 880 are shown sharing three contact edges from the protrusion to the respective outer boundaries of the body portion. The partial pads combined with each other at the respective corners may be arranged to share more than two contact edges.

[0099] When sections of the gasket are arranged to share multiple contact edges, the likelihood of gaps forming during the attachment process, through which dust and other particles can penetrate, is significantly reduced. Even if one edge fails to fully contact and a gap forms, waterproof and dustproof performance is maintained while the other edges are fully in contact. Furthermore, because the multiple edges can be oriented in different directions, such as with a 90-degree bend, waterproof and dustproof performance can be enhanced.

[0100] Figure 9 The manufacturing form of a partial liner according to an embodiment is shown. The manufacturing form of the L-shaped partial liner has a manufacturing advantage that can reduce the waste part because it can be produced in the form of several stacked L-shaped liners.

[0101] Furthermore, while using an I-shaped partial gasket requires four steps of bonding at the four corners, the L-shaped partial gasket reduces the steps of setting, overlapping, and compressing to two, while achieving the desired waterproof and dustproof protection and facilitating assembly. In particular, since the curved portion is made airtight, the display device according to this embodiment achieves highly reliable waterproof and dustproofing compared to a structure in which partial gaskets are overlapped and combined at the four corners.

[0102] A mixed configuration of L-shaped and I-shaped gaskets is also possible. For example, the gasket can be configured so that all four sides are surrounded by one L-shaped gasket and two I-shaped gaskets. The method of gasket arrangement can be appropriately selected, taking into account the advantages of manufacturing and sealing effect.

[0103] That is, the display device having the L-shaped partial spacer is advantageous in production by reducing the number of processes for the setting step, the overlapping step, and the compressing step, while having more excellent waterproof and dustproof effects.

[0104] Reference Figure 10A 、 Figure 10B 、 Figure 11A 、 Figure 11B and Figure 12 , describes an embodiment in which a partial pad is combined on the middle part of an edge portion. Figure 10A 、 Figure 10B 、 Figure 11A 、 Figure 11B and Figure 12 In , hatching indicates that portions with hatching may overlap each other. Figure 10A 、 Figure 10B 、 Figure 11A 、 Figure 11B and Figure 12 , the lower substrate is not shown, and in order to focus on describing the portion in which the partial pad is combined, other pad portions or other portions of the partial pad may be shown as omitted.

[0105] First, we will conduct FIG. 10A to FIG. 10B In an embodiment, the first portion pads 1010a and 1010b may be disposed on the left side of the upper portion of the lower substrate 110, and the second portion pads 1020a and 1020b may be disposed on the right side of the upper portion of the lower substrate 110. In addition, the first portion pads 1010a and 1010b and the second portion pads 1020a and 1020b may be combined at a middle portion of the upper portion of the lower substrate.

[0106] Here, one side of the upper portion and the other side of the upper portion may correspond to, for example, the left side of the upper portion and the right side of the upper portion. Alternatively, they may be positions with the same phase. That is, in the case of a vertically long display device, it can be understood as the lower side of the left portion and the upper side of the left portion, or the upper side of the right portion and the lower side of the right portion. In this case, the first portion pad and the second portion pad can be combined at the middle portion of the left portion and the middle portion of the right portion, respectively.

[0107] For large display devices such as TVs, when a single partial gasket is provided on one edge portion, the size of the partial gasket should be very large. Providing a single partial gasket on one edge portion may be disadvantageous in the manufacturing process of the partial gasket because it requires a material larger than the size of the partial gasket and is inconvenient to attach the partial gasket to the lower substrate.

[0108] The gasket according to the embodiment can be configured so that the partial gaskets are combined to overlap each other on one edge portion, particularly on a long edge portion such as an upper portion or a lower portion. In the case where the long edge portion has an arrangement in which several partial gaskets are combined, the partial gasket can be produced with a material smaller than the length of the display device, which is advantageous for production.

[0109] First, we will conduct Figure 10A According to an embodiment, the first portion of the liner 1010a includes a first central portion 1012a and a first protrusion 1014a, and the second portion of the liner 1020a includes a second central portion 1022a and a second protrusion 1024a. In addition, at least a portion of the first protrusion 1014a and at least a portion of the second protrusion 1024a may overlap.

[0110] The protrusions 1014a and 1024a may be configured to have a width smaller than that of the center portion 1012a and the center portion 1022a. The end of the first protrusion 1014a and the end of the second protrusion 1024a may overlap each other. Figure 10A , a portion where the first protrusion 1014a and the second protrusion 1024a overlap each other is indicated by hatching.

[0111] Next, we will Figure 10B According to an embodiment, the first portion of the liner 1010b may include a first central portion 1012b and a first protrusion 1014b, and the second portion of the liner 1020b may include a second central portion 1022b and a second protrusion 1024b. In addition, the first protrusion 1014b and the second protrusion 1024b may overlap each other. Figure 10B , portions where the first protrusion 1014b and the second protrusion 1024b overlap each other are indicated by hatching.

[0112] In accordance with Figure 10A In the embodiment, the protrusions 1014a and 1024a at least partially overlap, and according to Figure 10B In an embodiment, protrusions 1014b and 1024b completely overlap. Therefore, when the cushion is compressed, a barrier is formed in which protrusions 1014a, 1024a, 1014b, and 1024b overlap. This ensures waterproof and dustproof properties, preventing dust and moisture from entering from the outside.

[0113] exist Figure 10A and 10B, an embodiment is shown in which the protrusions overlap laterally. Lateral overlap means that the first protrusions 1014a and 1014b of the partial pad meet the second protrusions 1024a and 1024b of the partial pad on their left and right sides relative to the overlap area. In contrast, the following will refer to Figure 11A and 11B An embodiment is described in which the protrusions overlap vertically.

[0114] Reference Figure 11A According to an embodiment, the first protrusion 1130a can be configured to include a first main body portion 1132a and a first protrusion 1134a, which protrudes upward (e.g., a first direction) or downward (e.g., a second direction opposite to the first direction) away from the first main body portion 1132a in a plan view, wherein the first protrusion 1134a overlaps with at least a portion of the second protrusion 1170a.

[0115] As reference Figure 10A and 10B As described, the projections may overlap laterally and as described with reference to Figure 11A and 11B As described, the protrusions may overlap vertically. However, lateral overlap and vertical overlap are not mutually exclusive, and thus lateral overlap and vertical overlap may be achieved, which also ensures the same effect as vertical overlap.

[0116] When a portion of the pad is overlapped at the middle portion of one edge portion, vertical overlap is more favorable than lateral overlap as to the overlap direction. Figure 3 、 Figure 10A 、 Figure 10B 、 Figure 11A and Figure 11B When the gasket partially overlaps laterally, gap 410 is exposed to the outside of the lower substrate. Conversely, when the gasket partially overlaps vertically, gap 410 is not exposed to the outside by the main portion 1132a of the gasket. Therefore, the waterproof and dustproof performance of the gasket can be further improved.

[0117] Therefore, in an embodiment, at least one protrusion may have a protrusion that protrudes upward and downward to vertically overlap with a protrusion in another direction. Figure 11AAs shown, the first protrusion 1130a may have a first protrusion 1134a that protrudes downward to vertically overlap with the second protrusion 1170a. The body portion may be the remaining portion of the protrusion excluding the protrusion. For example, the first protrusion 1130a may include the first protrusion 1134a and the first body portion 1132a. The positional relationship between the first protrusion and the second protrusion and the position of the protrusion may vary. The protrusion at the upper position in the plan view may be combined via its downwardly protruding protrusion, or the protrusion at the lower part position in the plan view may be combined via its upwardly protruding protrusion.

[0118] Reference Figure 11B , the first protrusion 1130b may include a first body portion 1132b and a first protrusion 1134b, and the second protrusion 1170b may include a second body portion 1172b and a second protrusion 1174b. According to an embodiment, the protrusions 1130b and 1170b include respective protrusions 1134b and 1174b, and each of the protrusions may be combined with a protrusion in another direction. Figure 11B In the embodiment, the first protrusion 1134b of the first protrusion 1130b can be combined with the second body portion 1172b, and the second protrusion 1174b of the second protrusion 1170b can be combined with the first body portion 1132b. Figure 8C , Figure 11B The first portion of the pad 1110b and the second portion of the pad 1150b can be Figure 8C Combine in the manner shown in the upper part of Figure 8C , overlapping portions are indicated by distinguishable hatching.

[0119] like Figure 11B As shown, when each of the partial gaskets is configured with a protrusion and combined with a partial gasket from another direction, the combined strength between the partial gaskets increases, and the gaskets can be more securely combined. Furthermore, because the combined arrangement forms a double barrier, the gasket can achieve even better water and dustproofing capabilities. As the number of protrusions, and therefore the number of overlapping sections, increases, the gasket can achieve improved combined strength and water and dustproofing effects.

[0120] Reference Figure 12 , an embodiment of a combined arrangement of pads with recesses is described. Figure 12 A top view illustrating the configuration of a protrusion of a partial liner having a recess according to one embodiment of the present disclosure is provided.

[0121] According to an embodiment, the protrusion 1240 is configured to protrude upward from the main body of the second protrusion, the first protrusion 1210 may include a recess 1220 and an overlapping portion 1230 formed below the recess 1220 in a plan view, and the pad may be configured so that the protrusion 1240 overlaps the overlapping portion 1230. In an embodiment, the recess 1220 refers to a portion having a concave shape formed by retreating from the outer boundary of the protrusion (for example, a recess extending into the first protrusion 1210), and the overlapping portion 1230 refers to a portion where a protrusion or protrusion 1240 from another direction overlaps. In one embodiment, the overlapping portion 1230 is formed below the recess 1220 in a plan view.

[0122] When the pad overlaps and deforms at the overlap portion 1230, the concave portion 1220 serves to ensure an area for pad flattening while increasing the width to a sufficient degree. The pad having the concave portion 1220 does not protrude outside the substrate even when overlapping and allows sufficient deformation in the overlap region.

[0123] The positions of the recess 1220 and the overlapping portion 1230 may be configured to vary on the protrusion. In one embodiment, the protrusion at the upper position in the plan view has the recess 1220, but is not limited thereto. In the case where the protrusion at the lower position in the plan view has the recess, the overlapping portion may be formed on the recess in the plan view. According to another embodiment, the protrusion may be arranged vertically, horizontally, or with the protrusion extending in the same direction as the protrusion. Figure 12 The configuration is symmetrical about the origin shown.

[0124] Layered structure of the liner

[0125] Reference Figure 13 、 Figure 14 、 Figure 15 、 Figure 16A and Figure 16B , describing embodiments related to the layered structure of a gasket.

[0126] The liner may be formed of a single liner layer comprising an acrylic adhesive, etc. According to another embodiment, the liner may be formed of multiple layers further comprising a layer comprising another substrate.

[0127] Figure 13 is a cross-sectional view illustrating a multilayer liner according to an embodiment of the present disclosure.

[0128] According to an embodiment, the gasket 1300 may include a substrate layer 1320 and a gasket layer 1310. When the substrate layer 1320 does not have adhesive properties, the gasket may further include an adhesive layer 1330 below the substrate layer 1320. Here, the adhesive layer 1330 is a structure suitable for adhering the substrate layer 1320 to another layer or substrate. Even if the adhesive layer 1330 is not shown in the drawings or is not described when adhering the substrate layer 1320 to another layer or substrate, it can be understood that the gasket layer has the adhesive layer 1330 for adhering the substrate layer 1320.

[0129] Substrate layer 1320 is a layer having different properties than cushion layer 1310 and can therefore exhibit additional functionality. For example, the substrate layer may comprise PET, which is more rigid than the cushion layer. In this case, substrate layer 1320 can improve the yield of cushion manufacturing and enhance the cushion's dimensional stability. Furthermore, substrate layer 1320 can improve the cushion's attachment processability. In embodiments, when a cushion is formed solely from cushion layer 1310, the substrate layer has the advantage of compensating for dimensional changes or errors due to stretching and deformation.

[0130] When the liner is formed from multiple layers, the way in which the portions of the liner overlap at the portions where the portions of the liner overlap may be important. It may be important that the liner layers of the portions of the liner are arranged in contact with each other.

[0131] Figure 14 is a cross-sectional view illustrating an overlapping region of a multi-layer gasket according to an embodiment of the present disclosure. Display device 1400 according to an embodiment includes: in the region where a first portion gasket 1430 overlaps a second portion gasket 1440, second portion gasket 1440 may include a second substrate layer 1444 in contact with a lower substrate 1410 and a second gasket layer 1442 disposed on second substrate layer 1444; and first portion gasket 1430 includes a first substrate layer 1434 in contact with a cover glass 1420 and a first gasket layer 1432 disposed below the first substrate layer 1434 and on the second gasket layer. Here, the terms "in contact with the lower substrate" or "in contact with the cover glass" refer to adhesion via adhesive layers 1446 and 1436.

[0132] like Figure 14 As shown, when the backing layers are placed in contact with each other, the two backing layers can be deformed by compression and thus fill the gap between the backing layers. As a result, the display device can fully achieve the various effects described above with respect to the single-layer backing layer, and also have the additional effects brought by the substrate layer, such as improving the combined strength with the substrate.

[0133] Reference Figure 15 、 Figure 16A and Figure 16B, a substrate layer 1520 comprising a stretchable substrate is described.

[0134] Figure 15 is a diagram illustrating the properties of a stretchable material layer and a PET substrate layer of the present disclosure. The substrate layer may include a substrate having stretchable properties. Here, the term "stretchable" refers to the ability to be extended to an elongated length by tension. Substrate layer 1510 including a PET substrate may have an elongation of approximately 100%, while substrate layer 1520 including a stretchable substrate may have an elongation of approximately 1000%. For example, the stretchable substrate may include a polyurethane film (TPU).

[0135] Figure 16A and Figure 16B The reprocessing of the display device according to the present disclosure is shown. According to the conventional method for separating the backing layer, when the substrate layer is rigid such as PET material, the method can be performed by inserting a wire between the layers to move it back and forth laterally to separate the substrate layer from the lower substrate or cover glass, as shown in FIG. Figure 16A If the liner is not properly attached to the lower substrate, it can be removed in this manner and reworked.

[0136] Where a stretchable substrate is included, the liner can be easily removed by stretchably pulling the substrate layer 1520, e.g. Figure 16B As shown in the figure, since the substrate layer 1520 and the backing layer 1530 are pulled out together, the backing is easily separated and reworkability is improved. Although hard substrates such as PET can also be pulled out, there is a problem that the backing layer or adhesive layer is not easy to peel off and adhesive residue may remain. When the backing includes a stretchable substrate, there is almost no residual adhesive during separation, and the backing layer can be neatly separated together with the stretchable substrate.

[0137] The stretchable substrate may be configured to have a predetermined thickness or greater so as not to break when stretched. For example, the thickness of the stretchable substrate may be 50 micrometers or greater and 150 micrometers or less, but is not limited thereto.

[0138] Application of resin

[0139] Reference Figures 17 to 19 , describing the application of the resin. Figure 17 and Figure 18 shows a spacer to which resin is applied prior to compression of the cover glass of the present disclosure, and Figure 19 A spacer with resin applied after compression of the cover glass of the present disclosure is shown. Figure 17 and Figure 18 The lower substrate is not shown.

[0140] First, refer to Figure 17, describes applying a resin spacer before compressing the cover glass. Figure 17 , the pad may include a first partial pad 1610, a second partial pad 1620, a third partial pad 1630, a fourth partial pad 1640, a fifth partial pad 1650, and a sixth partial pad 1660. Furthermore, the pad may include a groove H. In an embodiment, the partial pads may be arranged to form the groove H. Here, the groove H may refer to an empty space in a plan view, which is formed by contact of the partial pads. Figure 17 The grooves (H) formed in the following are shown: at the portions where the first partial pad 1610 contacts the second partial pad 1620, at the portions where the first partial pad 1610 contacts the third partial pad 1630, at the portions where the third partial pad 1630 contacts the fourth partial pad 1640, etc. Although the partial pads do not appear to overlap in the plan view, the partial pads do overlap when viewed from the side view of the display device. In more detail, a groove H can be formed by at least three sides surrounded by two partial pads in contact with each other. For example, as shown in FIG. Figure 17 As shown, one groove H may have three sides surrounded by the first center portion 1611 and the first protrusion 1612 of the first and second partial pads 1610 and 1620. Here, the groove may be formed on the first protrusion 1612 in a plan view. In addition, one groove H may have three sides surrounding the second protrusion 1613 of the first partial pad 1610 and the third protrusion 1632 and the second center portion 1631 of the third partial pad 1630. The second protrusion 1613 and the third protrusion 1632 may be in vertical contact with each other. Here, the groove may be formed on the third protrusion 1632 in a plan view. The second protrusion 1613 and the third protrusion 1632 may be configured to Figure 17 In this case, the groove may be formed on the second protrusion 1613 in a plan view. In addition, in order to more effectively prevent the penetration of dust and moisture, a resin may be applied to the groove H.

[0141] The display device according to the embodiment may further include a resin applied to the groove. For example, the resin may include a known optically transparent resin (OCR) material. The resin may be applied to various locations, such as one side of a gasket or between portions of the gasket. In one embodiment, after a groove to which the resin is applied is prepared in the display device, the resin may then be applied to the groove. When the resin is applied to the groove, gaps that may occur during the process of combining the combination gaskets can be effectively sealed. The application of the resin may be performed before or after the overlapping portions are compressed.

[0142] exist Figure 17In the embodiment, groove H has an outwardly open shape. Here, the term "outside" may refer to the outer side of the edge portion of the display device. A spacer may be provided on the lower substrate 110, and resin may then be applied to groove H before the cover glass is placed on the spacer. The cover glass may then be compressed. Since the groove is formed to be open to the outside, there is an advantage in that resin can be applied additionally even after the cover glass is compressed.

[0143] Reference Figure 18 , describes another embodiment of a spacer for applying resin prior to compression of the cover glass. Figure 18 , the pad may include a first portion pad 1710, a second portion pad 1720, a third portion pad 1730, a fourth portion pad 1740, a fifth portion pad 1750, and a sixth portion pad 1760. In addition, the pad may include a groove H. Figure 18 As shown, the groove H may be a space in which all four sides of the groove are closed. The groove H may be formed by a plurality of partial liners surrounding its four sides. For example, a groove H may be formed by two first protrusions 1712, 1713 and a first center portion 1711 of a first partial liner 1710 surrounding the four sides of the groove and a second partial liner 1720. Alternatively, as Figure 18 As shown in the upper middle portion of , the two third protrusions 1732 and 1733 of the third partial gasket 1730 can surround the top and bottom sides of the second protrusion 1714 of the first partial gasket 1710, thereby forming a closed groove H. That is, the groove H can be formed by four sides surrounded by multiple partial gaskets.

[0144] When the partial gasket forms a closed groove H and resin is applied to the groove H, the resin is not exposed to the outside, which improves the appearance from an aesthetic perspective. In other words, because the resin is applied in a closed space, it does not overflow to the outside. The partial gasket can be used to prevent or at least reduce the amount of resin overflowing to the outside. Thereafter, when the cover glass is compressed, the resin is not exposed to the outside, which improves the appearance from an aesthetic perspective.

[0145] Reference Figure 19 , describes applying a resin spacer after compressing the cover glass. Figure 19 In the embodiment, the liner may include a first portion liner 1810, a second portion liner 1820, a third portion liner 1830, a fourth portion liner 1840, a fifth portion liner 1850, and a sixth portion liner 1860. In addition, the liner may include a groove H. Figure 19As shown, the gasket may include a groove H that opens outward. Resin can be applied to the groove H. Even after the cover glass is compressed, since the groove H opens outward, resin can be applied to the groove from the outside. Some gaskets may be configured, arranged, or combined to have a groove H that opens outward. For example, one groove H may be formed at the portion where the first and second partial gaskets 1810 and 1820 are combined, and one groove H may be formed at the portion where the first and third partial gaskets 1810 and 1830 are combined.

[0146] According to an embodiment, a partial gasket may have protrusions 1814, 1815, 1834, and 1835. Protrusions 1814, 1815, 1834, and 1835 are formed by extending the partial gasket to protrude beyond the periphery of the lower substrate 110. Protrusions 1814, 1815, 1834, and 1835 may each form a groove that contacts the partial gasket. For example, a groove H may be formed by protrusion 1814 and first protrusion 1812 of the first partial gasket and second partial gasket 1820. Furthermore, a groove H may be formed by protrusion 1815 of the first partial gasket 1810 and third protrusion 1832 and protrusion 1834 of the third partial gasket 1830.

[0147] exist Figure 19 In this embodiment, since the resin is applied after the cover glass is compressed, the resin is applied to the groove H, which opens outward from the outer side of the display device. Since protrusions 1814, 1815, 1834, and 1835 protrude beyond the lower substrate and cover glass even after the cover glass is compressed, the resin can be injected into the grooves between these protruding protrusions. Protrusions 1814, 1815, 1834, and 1835 facilitate the resin application process. By filling the gap between groove H and a portion of the gasket with resin, the gasket's waterproof and dustproof capabilities can be improved.

[0148] Embodiments of a method for manufacturing a display device

[0149] In the following, reference is made to Figure 1 and Figure 3 , a method for manufacturing a display device is described.

[0150] According to an embodiment, a method for manufacturing a display device 100 may include: a first step of arranging a first portion pad 122 on the lower substrate 110 along the periphery of the lower substrate 110 on which a display element is arranged; a second step of arranging a second portion pad 124 on the lower substrate 110 along the periphery of the lower substrate 110, wherein at least a portion of the first portion pad 122 and at least a portion of the second portion pad 124 are arranged to overlap; a third step of arranging a cover glass 310 on the first portion pad 122 and the second portion pad 124 to cover the lower substrate 110; and a fourth step of compressing the lower substrate 110 and the cover glass 310 to fill a gap 410 between the first portion pad 122 and the second portion pad 124 and formed when the first portion pad 122 and the second portion pad 124 are arranged to overlap.

[0151] In the second step of the embodiment, the pad can be Figure 1 The enlarged view of the overlap is shown. Figure 3 The first portion pad 122 is disposed on the second portion pad 124 , but the second portion pad 124 may also be disposed on the first portion pad 122 .

[0152] To prevent excessive air gaps from forming during the fourth step of the embodiment, the display device can be compressed initially at the center and then gradually compressed toward the edges, allowing trapped air to escape. Alternatively, the display device can be compressed at a sufficiently low speed. This allows any unnecessary air to escape through the gaps, which can then be filled.

[0153] When the liner has a multi-layer structure including a liner layer and a base layer, the second step may include the steps of disposing the first partial liner 1430 and the second partial liner 1440 so that the first liner layer 1432 and the second liner layer 1442 are in contact with each other, as shown in FIG. Figure 14 More specifically, Figure 13 The second step may include the step of disposing the first liner layer 1432 on the second liner layer 1442 in a region where the first partial liner 1430 overlaps the second partial liner 1440 .

[0154] exist Figure 14 In the embodiment, first substrate layer 1434 is arranged to contact cover glass 1420, and second substrate layer 1444 is arranged to contact lower substrate 1410. However, the first and second substrate layers can each be rotated 180 degrees so that the first substrate layer contacts the lower substrate and the second substrate layer contacts the cover glass. Even in this case, the portion of the substrate layer contacting the cover glass becomes the upper layer, while the portion of the substrate layer contacting the lower substrate becomes the lower layer. With this arrangement, the two portions of the padding layers can contact each other.

[0155] Those skilled in the art will appreciate that the present disclosure can be implemented in other specific embodiments without departing from its technical concept or essential features, and therefore the above-described embodiments are illustrative in all aspects and should not be considered as limiting. The scope of the present disclosure is defined by the appended claims rather than the description, and therefore all changes and modifications that fall within the metes and bounds of the claims or equivalents of such metes and bounds are intended to be included within the scope of the claims.

[0156] According to the present disclosure, the following embodiments are disclosed.

[0157] A display device is disclosed, comprising: a lower substrate on which a display element is arranged, a pad arranged on the lower substrate along the periphery of the lower substrate, and a cover glass arranged on the pad and covering the lower substrate, wherein the pad comprises a first portion of the pad and a second portion of the pad, wherein at least a portion of the first portion of the pad overlaps with at least a portion of the second portion of the pad.

[0158] The first portion of the pad may be disposed on an upper portion of the lower substrate in a plan view and have a first center portion and a first protrusion, the first protrusion having a width smaller than that of the first center portion, and the second portion of the pad may be disposed on a side portion of the lower substrate in a plan view and have a second center portion and a second protrusion, the second protrusion having a width smaller than that of the second center portion, and the pad is configured such that at least a portion of the first protrusion overlaps with at least a portion of the second protrusion.

[0159] The cushion may be configured to have, in plan view, a recessed area at one or more corners.

[0160] The first portion gasket may be provided to extend from an upper portion of the lower substrate to an opposite side of the one side portion, and the second portion gasket may be provided to extend from one side portion of the lower substrate to a lower portion.

[0161] The first portion of the gasket may be disposed on one side of the upper portion of the lower substrate in a plan view and have a first center portion and a first protrusion, the first protrusion having a width smaller than that of the first center portion, and the second portion of the gasket may be disposed on the other side of the upper portion of the lower substrate in a plan view and have a second center portion and a second protrusion, the second protrusion having a width smaller than that of the second center portion, and the gasket is configured such that at least a portion of the first protrusion overlaps with at least a portion of the second protrusion.

[0162] The first protrusion may include a body portion and a protrusion protruding upward or downward from the body portion in a plan view, and the gasket is configured such that the protrusion overlaps at least a portion of the second protrusion.

[0163] The protrusion may protrude upward from the body portion, and the second protrusion may include: a recess; and an overlapping portion formed below the recess in a plan view, wherein the gasket is configured such that the protrusion overlaps the overlapping portion.

[0164] In the area where the first portion of the pad overlaps with the second portion of the pad, the first portion of the pad may include a first substrate layer in contact with the lower substrate and a first pad layer arranged on the first substrate layer, and the second portion of the pad may include a second substrate layer in contact with the cover glass and a second pad layer arranged below the second substrate layer and on the first pad layer.

[0165] At least one of the first substrate layer and the second substrate layer may include a stretchable substrate.

[0166] A resin layer applied to the overlapping portion may further be included.

[0167] A method for manufacturing a display device is disclosed, the method comprising: a first step of arranging a first portion of a pad on a lower substrate along the periphery of the lower substrate on which a display element is arranged; a second step of arranging a second portion of a pad on the lower substrate along the periphery of the lower substrate, wherein at least a portion of the first portion of the pad and at least a portion of the second portion of the pad are arranged to overlap; a third step of arranging a cover glass on the first portion of the pad and the second portion of the pad to cover the lower substrate; and a fourth step of compressing the lower substrate and the cover glass to fill a gap between the first portion of the pad and the second portion of the pad and formed when the first portion of the pad and the second portion of the pad are arranged to overlap.

[0168] Including: the first portion of the pad may have a first center portion and a first protrusion, the first protrusion having a width smaller than the width of the first center portion, and the second portion of the pad may have a second center portion and a second protrusion, the second protrusion having a width smaller than the width of the second center portion, the first step may include the step of setting the first portion of the pad on the upper portion of the lower substrate in a plan view, and the second step may include the step of setting the second portion of the pad at one side of the lower substrate in a plane, wherein at least a portion of the first protrusion is set to overlap with at least a portion of the second protrusion.

[0169] Including: the first step may include the step of setting the first portion of the liner to extend from the upper portion of the lower substrate to the opposite side of one side of the lower substrate, and the second step may include setting the second portion of the liner to extend from one side of the lower substrate to the lower portion of the lower substrate.

[0170] Including: the first portion of the pad may have a first center portion and a first protrusion, the first protrusion having a width smaller than the width of the first center portion, and the second portion of the pad may have a second center portion and a second protrusion, the second protrusion having a width smaller than the width of the second center portion, the first step may include the step of setting the first portion of the pad on one side of the upper portion of the lower substrate in a plan view, and the second step may include the step of setting the second portion of the pad on the other side of the upper portion of the lower substrate in a plane, wherein at least a portion of the first protrusion is set to overlap with at least a portion of the second protrusion.

[0171] The first protrusion may include a body portion and a protrusion protruding upward or downward from the body portion in a plan view, and the second step may include providing the protrusion to overlap at least a portion of the second protrusion.

[0172] The protrusion may protrude upward from the body portion, the second protrusion may include a recess and an overlapping portion formed below the recess in a plan view, and the second step may include arranging the protrusion to overlap the overlapping portion.

[0173] Including: the first part of the pad may include a first substrate layer in contact with the lower substrate and a first pad layer arranged on the first substrate layer, the second part of the pad may include a second substrate layer in contact with the cover glass and a second pad layer arranged below the second substrate layer, and the second step may include a step of setting the second pad layer on the first pad layer in the area where the first part of the pad overlaps with the second part of the pad.

[0174] At least one of the first substrate layer and the second substrate layer may include a stretchable substrate.

[0175] 100, 1400: Display device 110, 1410: Lower substrate

[0176] 120,1300: Pad

[0177] 122,810,830,875,1010a,1010b,1110a,1110b,1430: First part of the liner

[0178] 124,820,840,880,1020a,1020b,1150a,1150b,1440: Second part of the liner

[0179] 126,850,885: Part III pad

[0180] 128,860,890: Part 4 pad

[0181] 130: Overlapping area 140: Recessed area

[0182] 310,1420: Cover glass 410: Gap

[0183] 510: air gap 600,700: partial padding

[0184] 832,834,852,854,872,874,876,878,882,884,886,888: Subsection pads

[0185] 610,710: Central

[0186] 1120a, 1120b: First center

[0187] 1160a, 1160b: Second central part

[0188] 620,720: Protrusion

[0189] 836,838,873,H: Slot

[0190] 1012a, 1012b, 1120a, 1120b: First center

[0191] 1014a, 1014b, 1130a, 1130b, 1210: First protrusion

[0192] 1022a, 1022b, 1160a, 1160b: Second center

[0193] 1024a, 1024b, 1170a, 1170b: Second protrusion

[0194] 1132a, 1132b: First body

[0195] 1172b: Second body

[0196] 1134a, 1134b: First protrusion

[0197] 1174b: Second protrusion

[0198] 1240: protrusion

[0199] 1220: concave part

[0200] 1230: Overlapping part 1310, 1530: Pad layer

[0201] 1320: substrate layer 1330: adhesive layer

[0202] 1432: First liner layer 1434: First substrate layer

[0203] 1436: First adhesive layer 1442: Second liner layer

[0204] 1444: Second substrate layer 1446: Second adhesive layer

[0205] 1510: Substrate layer including PET substrate

[0206] 1520: Substrate layer including a stretchable substrate

[0207] 1610, 1710, 1810: First part of the liner

[0208] 1611, 1711, 1811: First Central Division

[0209] 1612, 1712, 1713, 1812: First protrusion

[0210] 1613, 1714, 1813: Second protrusion

[0211] 1620, 1720, 1820: Second part of the pad

[0212] 1630, 1730, 1830: Third part padding

[0213] 1631, 1731, 1831: Second Central Division

[0214] 1632, 1732, 1733, 1832: The third salient

[0215] 1633, 1734, 1735, 1833: Fourth Prominence

[0216] 1640, 1740, 1840: Part 4 padding

[0217] 1650, 1750, 1850: Fifth part pad

[0218] 1660, 1760, 1860: Part 6 Pad

[0219] 1814,1815,1834,1835: concave part

Claims

1. A display device, comprising: lower base plate; a display element on the lower substrate, the display element being configured to emit light; a gasket provided on the lower substrate along a periphery of the lower substrate, the gasket comprising a first portion of the gasket and a second portion of the gasket, wherein a portion of the first portion of the gasket overlaps a portion of the second portion of the gasket on the lower substrate; and a cover glass on the spacer, the cover glass covering the lower substrate and the spacer; The portion of the first gasket that overlaps with the second gasket is between the lower substrate and the cover glass.

2. The display device according to claim 1, wherein The first portion of the gasket is located at an upper portion of the lower substrate in a plan view of the display device, the first portion of the gasket includes a first central portion and a first protrusion extending from the first central portion, wherein the first protrusion has a width smaller than a width of the first central portion, wherein the second portion of the gasket is disposed on the first side of the lower substrate in the plan view, the second portion of the gasket includes a second central portion and a second protrusion extending from the second central portion, wherein the second protrusion has a width smaller than a width of the second central portion, and At least a portion of the first protrusion overlaps with at least a portion of the second protrusion.

3. The display device according to claim 2, wherein: The cushion includes, in the plan view, recessed areas at one or more corners of the cushion.

4. The display device according to claim 2, wherein The first portion of the gasket extends from an upper portion of the lower substrate to a second side of the lower substrate opposite to the first side of the lower substrate, and The second portion of the pad extends from the first side of the lower substrate to a lower portion of the lower substrate opposite to the upper portion of the lower substrate.

5. The display device according to claim 1, wherein The first portion of the gasket is on a first side of an upper portion of the lower substrate in a plan view of the display device, the first portion of the gasket includes a first central portion and a first protrusion extending from the first central portion, wherein the first protrusion has a width smaller than a width of the first central portion, and wherein the second portion of the gasket is disposed on a second side of the upper portion of the lower substrate opposite to the first side in the plan view, the second portion of the gasket includes a second central portion and a second protrusion extending from the second central portion, wherein the second protrusion has a width smaller than a width of the second central portion, and At least a portion of the first protrusion overlaps with at least a portion of the second protrusion. The display device according to claim 5 , wherein: The first protrusion includes a body portion and a protrusion, the protrusion protruding in a first direction away from the body portion in a plan view or in a second direction away from the body portion in a plan view that is opposite to the first direction, and The protrusion overlaps with at least a portion of the second projection.

7. The display device according to claim 6, wherein: The protrusion protrudes along the first direction, wherein the second protrusion includes a recess and an overlapping portion, the recess extending into the second protrusion, and the overlapping portion being below the recess in the plan view, The protrusion of the first protrusion overlaps with the overlapping portion of the second protrusion.

8. The display device according to claim 1, wherein In the area where the first portion of the pad overlaps with the second portion of the pad, the first portion of the pad includes a first substrate layer in contact with the lower substrate and a first pad layer on the first substrate layer, and the second portion of the pad includes a second substrate layer in contact with the cover glass and a second pad layer below the second substrate layer and on the first pad layer.

9. The display device according to claim 8, wherein At least one of the first substrate layer and the second substrate layer includes a stretchable substrate.

10. The display device according to claim 1, further comprising: A resin layer in which a portion of the first partial pad overlaps a portion of the second partial pad.

11. The display device according to claim 1, wherein The first portion of the gasket is provided on an upper portion of the lower substrate, the first portion of the gasket including a first central portion, a first protrusion protruding from the first central portion to a first side, and a second protrusion protruding to a second side; wherein the second portion of the pad is disposed on the left side of the lower substrate, and the second portion of the pad is in contact with the first protrusion; and A groove is formed in the first protrusion in a plan view of the display device.

12. The display device according to claim 11, wherein The liner further comprises: The third portion of the gasket includes a second central portion and a third protrusion protruding from the second central portion, wherein the third protrusion contacts the second protrusion.

13. The display device according to claim 12, wherein: The third protrusion further includes a groove in a plan view of the display device.

14. The display device according to claim 13, wherein: The third portion of the gasket further includes a fourth protrusion protruding from the second central portion, and the gasket further includes: A fourth portion gasket is provided on the right side of the lower substrate and contacts the fourth protrusion, wherein the fourth portion gasket includes a groove in the plan view.

15. A method for manufacturing a display device, comprising: disposing a first portion of a spacer on the lower substrate along a periphery of the lower substrate on which the display element is disposed; disposing a second portion of the gasket on the lower substrate along a periphery of the lower substrate such that a portion of the first portion of the gasket overlaps a portion of the second portion of the gasket; disposing a cover glass on the first portion of the spacer and the second portion of the spacer so that the cover glass covers the lower substrate, the first portion of the spacer, and the second portion of the spacer; as well as The lower substrate and the cover glass are compressed so that a gap between the first portion of the spacer and the second portion of the spacer is reduced.

16. The method for manufacturing a display device according to claim 15, wherein: The first portion of the gasket includes a first central portion and a first protrusion extending from the first central portion, the first protrusion having a width smaller than a width of the first central portion, wherein the second portion of the pad includes a second central portion and a second protrusion extending from the second central portion, the second protrusion having a width smaller than a width of the second central portion, wherein the first portion of the pad is disposed at an upper portion of the lower substrate in a plan view of the display device, and the second portion of the pad is disposed at a first side portion of the lower substrate in the plan view, At least a portion of the first protrusion overlaps with at least a portion of the second protrusion.

17. The method for manufacturing a display device according to claim 16, in, The first portion of the gasket is configured to extend from the upper portion to a second side of the lower substrate opposite to the first side, and The second portion of the gasket is configured to extend from the first side portion to a lower portion of the lower substrate opposite to an upper portion of the lower substrate.

18. The method for manufacturing a display device according to claim 15, wherein: The first portion of the gasket includes a first central portion and a first protrusion extending from the first central portion, the first protrusion having a width smaller than a width of the first central portion, wherein the second portion of the pad includes a second central portion and a second protrusion extending from the second central portion, the second protrusion having a width smaller than a width of the second central portion, wherein the first portion of the pad is disposed on a first side of the upper portion of the lower substrate in a plan view of the display device, and the second portion of the pad is disposed on a second side of the upper portion of the lower substrate opposite to the first side in the plan view, wherein at least a portion of the first protrusion overlaps with at least a portion of the second protrusion.

19. The method for manufacturing a display device according to claim 18, wherein: The first protrusion includes a body portion and a protrusion that protrudes in a first direction away from the body portion in a plan view or in a second direction away from the body portion in a plan view that is opposite to the first direction, and The protrusion and at least a portion of the second protrusion are arranged to overlap.

20. The method for manufacturing a display device according to claim 19, wherein: The protrusion protrudes along the first direction, wherein the second protrusion includes a recess and an overlapping portion, the recess extending into the second protrusion, the overlapping portion being formed below the recess in the plan view, and Wherein, the protrusion and the overlapping portion are arranged to overlap.

21. The method for manufacturing a display device according to claim 15, wherein: The first portion of the pad includes a first substrate layer in contact with the lower substrate and a first pad layer disposed on the first substrate layer, and the second portion of the pad includes a second substrate layer in contact with the cover glass and a second pad layer disposed below the second substrate layer. Wherein, in an area where the first portion of the pad overlaps with the second portion of the pad, the second pad layer is disposed on the first pad layer.

22. The method for manufacturing a display device according to claim 21, wherein: At least one of the first substrate layer and the second substrate layer includes a stretchable substrate.

23. A display device comprising: lower base plate; a display element on the lower substrate, the display element being configured to emit light; a gasket provided on the lower substrate along a periphery of the lower substrate, the gasket comprising a first portion of the gasket and a second portion of the gasket, wherein a portion of the first portion of the gasket overlaps a portion of the second portion of the gasket on the lower substrate; and a cover glass on the spacer, the cover glass covering the lower substrate and the spacer, Wherein, after compressing the lower substrate, the gasket and the cover glass, the innermost and outermost edges of the first portion gasket or the innermost and outermost edges of the second portion gasket do not extend beyond the outermost outer edge of the first portion gasket or the outermost outer edge of the second portion gasket respectively in a plan view of the display device.

24. The display device according to claim 23, wherein The first portion of the gasket includes a first central portion and a first protrusion extending from the first central portion, wherein the first protrusion has a width smaller than a width of the first central portion, wherein the second portion of the pad includes a second central portion and a second protrusion extending from the second central portion, wherein the second protrusion has a width smaller than a width of the second central portion, and At least a portion of the first protrusion overlaps with at least a portion of the second protrusion.

25. The display device according to claim 24, wherein The gasket includes a recessed portion formed by overlapping a portion of the first protrusion with a portion of the second protrusion.

Images