KR20240048734A - Elasticity member and display device having the same - Google Patents

Abstract

The elastic member according to the embodiment is an elastic member including a first region and a second region, wherein the elastic member is defined by a first direction in the width direction and a second direction in the longitudinal direction, and the first region is defined by the first region. A plurality of first pattern portions including a plurality of first patterns arranged to be spaced apart in one direction; and a plurality of second pattern portions including a plurality of second patterns spaced apart from each other in the first direction, wherein the plurality of first pattern portions and the plurality of second pattern portions are formed alternately, and the plurality of second pattern portions are formed alternately. Among the first patterns, the first pattern disposed at the end in the first direction includes a hinge portion disposed while opening one end area, and includes a plurality of protrusions disposed at an edge of the elastic member, and the highest of the plurality of protrusions is The distance between the protrusion closest to the outer hinge portion and the outermost hinge portion is greater than 0 to 5 mm.

Description

Elastic member and display device including same {ELASTICITY MEMBER AND DISPLAY DEVICE HAVING THE SAME}

The embodiment relates to an elastic member and a display device including the same.

Recently, there is an increasing demand for flexible or foldable display devices that are easy to carry various applications and can display images on a larger screen when carried.

These flexible or foldable displays can be folded or partially bent when being carried or stored, and can be implemented in an unfolded state when displaying an image. As a result, the image display area can be increased and the user can easily carry it around.

Such a flexible or foldable display device may be repeatedly folded or bent, and then unfolded again. To this end, the flexible or foldable display device may include an elastic member that can be bent in one direction.

Meanwhile, the elastic member is kept coupled to the frame before being fastened to the display device. The frame is connected to the elastic member at an edge of the elastic member. The elastic member and the frame may be coupled through a plurality of bridge parts. The frame may serve to fix the elastic member and thereby prevent the shape or size of the pattern of the elastic member from being deformed.

Meanwhile, even when the elastic member is fixed to the frame, the elastic member may be bent in one direction during handling. Accordingly, the pattern portion of the elastic member may be deformed in shape or size due to stress.

Therefore, an elastic member with a new structure that can solve the above problems is required.

Meanwhile, Korean Patent Publication KR10-2018-0079091 (2018.07.10) is disclosed as a prior art related to elastic members.

The embodiment is intended to provide an elastic member that can prevent deformation of the pattern portion of the elastic member.

The elastic member according to the embodiment is an elastic member including a first region and a second region, wherein the elastic member is defined by a first direction in the width direction and a second direction in the longitudinal direction, and the first region is defined by the first region. A plurality of first pattern portions including a plurality of first patterns arranged to be spaced apart in one direction; and a plurality of second pattern portions including a plurality of second patterns spaced apart from each other in the first direction, wherein the plurality of first pattern portions and the plurality of second pattern portions are formed alternately, and the plurality of second pattern portions are formed alternately. Among the first patterns, the first pattern disposed at the end in the first direction includes a hinge portion disposed while opening one end area, and includes a plurality of protrusions disposed at an edge of the elastic member, and the highest of the plurality of protrusions is The distance between the protrusion closest to the outer hinge portion and the outermost hinge portion is greater than 0 to 5 mm.

The elastic member according to the embodiment can prevent the pattern portion and the pattern from being deformed.

In detail, the elastic member according to the embodiment may arrange the protrusion at a set distance from the first region, the outermost pattern portion, or the outermost hinge portion.

The protrusion may reduce the degree of sagging of the first region where the pattern portion is disposed when the elastic member is bent. Accordingly, it is possible to prevent the spacing of the pattern portions disposed in the first area from changing. Additionally, it is possible to prevent the spacing, length, and width of the plurality of patterns arranged in the first area from changing.

Additionally, the elastic member according to the embodiment may form the size of the protrusion disposed in an area at a set distance from the first area, the outermost pattern portion, or the outermost hinge portion, to be larger than the size of the protrusion disposed in other areas.

Additionally, the elastic member according to the embodiment may arrange a plurality of protrusions in an area at a set distance from the first area, the outermost pattern part, or the outermost hinge part.

Additionally, the elastic member according to the embodiment may make the spacing between the protrusions disposed in the area at a set distance from the first region, the outermost pattern portion, or the outermost hinge portion smaller than that of the protrusions disposed in other regions.

Accordingly, the fixing force of the protrusion can be strengthened. As a result, when the elastic member is bent, the degree of sagging of the first region where the pattern portion is disposed can be reduced.

Accordingly, it is possible to prevent the spacing of the pattern portions disposed in the first area from changing. Additionally, it is possible to prevent the spacing, length, and width of the plurality of patterns arranged in the first area from changing.

FIG. 1 is a diagram illustrating a perspective view of a display device according to an embodiment.
Figure 2 is a diagram showing a perspective view of an elastic member according to an embodiment.
Figure 3 is a diagram showing a side view of an elastic member according to an embodiment before folding.
Figure 4 is a side view showing an elastic member according to an embodiment after folding.
Figure 5 is a top view of an elastic member according to an embodiment.
Figure 6 is a top view of an elastic member module in which an elastic member and a frame are combined according to an embodiment.
Figures 7 to 9 are diagrams for explaining the reliability of elastic members according to the positions of protrusions of the elastic members according to examples and comparative examples.
10 to 13 are top views of elastic members according to another embodiment.
Figure 14 is a cross-sectional view of a folding support including an elastic member according to an embodiment.
Figure 15 is a cross-sectional view of a display device including a flexible support according to an embodiment.
FIG. 16 is a diagram for explaining an application example of a display device according to an embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining and replacing. In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, are generally understood by those skilled in the art to which the present invention pertains. It can be interpreted as meaning, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted by considering the contextual meaning of the related technology.

Additionally, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention. In this specification, the singular may also include the plural unless specifically stated in the phrase, and when described as “at least one (or more than one) of A, B, and C,” it can be combined with A, B, and C. It can contain one or more of all possible combinations.

Additionally, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and are not limited to the essence, sequence, or order of the component.

And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to that other component, but also is connected to that component. It may also include cases where other components are 'connected', 'coupled', or 'connected' by another component between them.

Additionally, when described as being formed or disposed "on top or bottom" of each component, top or bottom refers not only to cases where two components are in direct contact with each other, but also to one This also includes cases where another component described above is formed or placed between two components.

Additionally, when expressed as “up (above) or down (down),” it can include not only the upward direction but also the downward direction based on one component.

Hereinafter, an elastic member according to an embodiment, a folding support body including the same, and a display device will be described with reference to the drawings.

Figure 1 is a diagram showing a perspective view of a display device according to an embodiment. 2 to 4 are diagrams illustrating a perspective view and a cross-sectional view of an elastic member of a display device according to an embodiment.

Referring to FIG. 1, a display device 10 according to an embodiment may include a panel including an elastic member 100, a display panel 2000 disposed on the elastic member 100, and a touch panel 3000. You can.

The elastic member 100 may support the display panel 2000 and the touch panel 3000. That is, the elastic member 100 may be a support substrate that supports the display panel 2000 and the touch panel 3000.

Meanwhile, the touch panel 3000 may be formed integrally with the display panel 2000. For example, the touch panel 3000 may be formed integrally with the display panel 2000 using an on-cell or in-cell method.

The elastic member 100 may include metallic materials and non-metallic materials. For example, the elastic member 100 may include metal, metal alloy, plastic, composite material (e.g., carbon fiber reinforced plastic, magnetic or conductive material, glass fiber reinforced material, etc.), ceramic, sapphire, glass, etc. there is.

The elastic member 100 may be flexible or foldable. That is, the elastic member 100 can be bent or bent in one direction. That is, the elastic member 100 may be a display substrate applied to a flexible display device or a foldable display device.

The elastic member 100 may have a first direction (1D) and a second direction (2D) that is different from the first direction (1D). For example, the first direction (1D) may be defined as the same direction as the folding axis (FAX) direction of the elastic member 100, and the second direction may be a direction perpendicular to the first direction. there is.

One of the first direction (1D) and the second direction (2D) may be defined as the width direction of the elastic member 100, and the other direction may be defined as the longitudinal direction of the elastic member 100. It can be defined as:

The elastic member 100 may be folded using either the width direction or the length direction of the elastic member 100 as a folding axis.

Hereinafter, for convenience of explanation, the first direction 1D is defined as the same direction as the folding axis. Additionally, the first direction 1D is defined as the width direction of the elastic member 100, and the second direction 2D is defined as the longitudinal direction of the elastic member 100.

The elastic member 100 may include at least two regions. In detail, the elastic member 100 may include a first area (1A) and a second area (2A).

The first area 1A may be defined as an area where the elastic member 100 is folded. That is, the first area 1A may be defined as an area where the elastic member 100 and the display device 10 including the elastic member 100 are folded. That is, the first area 1A may be a folding area.

Additionally, the second area 2A may be defined as an area in which the elastic member 100 is not folded. That is, the second area 2A may be defined as an area where the elastic member 100 and the display device 10 including the elastic member 100 are unfolded. That is, the second area 2A may be an unfolding area.

The display panel 2000 may be disposed on the elastic member 100 .

The display panel 2000 may include a plurality of pixels including a switching thin film transistor, a driving thin film transistor, a power storage element, and an organic light emitting diode (OLED). Organic light emitting devices can be deposited at relatively low temperatures and can be mainly applied to flexible display devices due to low power and high brightness. Here, a pixel refers to the minimum unit for displaying an image, and the display panel displays an image through a plurality of pixels.

The display panel 2000 may include a substrate, a gate line disposed on the substrate, a data line that insulates and intersects the gate line, and a common power line. In general, one pixel can be defined by a gate line, a data line, and a common power line.

The substrate may include a material having flexible properties, such as a plastic film, and the display panel 2000 may be implemented by arranging an organic light emitting diode and a pixel circuit on a flexible film.

The touch panel 3000 may be disposed on the display panel 2000. The touch panel 3000 can implement a touch function in a foldable display device or a flexible display device, and the touch panel can be omitted in a foldable display device or flexible display device that displays only an image without a touch function.

The touch panel 3000 may include a substrate and a touch electrode disposed on the substrate. The touch electrode can detect the position of an input device touching the foldable display device or flexible display device using a capacitance method or a resistive method.

The base material of the touch panel 3000 may include a material having flexible properties, such as a plastic film, and the touch panel 3000 may be implemented by disposing a touch electrode on a flexible film.

As described above, when the touch panel 3000 is formed integrally with the display panel 2000, the base material of the touch panel 3000 may be the base material of the display panel or some elements of the display panel. Through this, the touch panel 3000 and the display panel 2000 can be formed as one piece and the thickness of the display device can be reduced.

Meanwhile, the elastic member 100 and the display panel 2000 may have different sizes.

For example, the area of the elastic member 100 may be 90% or more and 110% or less of the area of the display panel 2000. In detail, the area of the elastic member 100 may be 95% or more and 105% or less of the area of the display panel 2000. In more detail, the area of the elastic member 100 may be 97% or more and 100% or less of the area of the display panel 2000.

When the area of the elastic member 100 is less than 90% of the area of the display panel 2000, the supporting force of the elastic member 100 supporting the display panel 2000 or the touch panel 3000 may be reduced. . As a result, a curl phenomenon or the like may occur in the unfolded area of the elastic member 100.

Additionally, when the area of the elastic member 100 increases by more than 110% of the area of the display panel 2000, a supporting force for supporting the display panel or touch panel can be secured by the elastic member 100. However, the bezel area of the display device including the elastic member, the display panel, and the touch panel may increase.

Meanwhile, although not shown in the drawing, a cover window that protects the foldable display device or flexible display device is additionally disposed on the top of the touch panel 3000 or the top of the display panel 2000 (if the touch panel is omitted). It can be.

Meanwhile, the elastic member 100, the display panel 2000, and the touch panel 3000 may be adhered to each other through an adhesive layer or the like.

Referring to FIG. 2, the elastic member 100 may be bent in one direction.

In detail, the elastic member 100 may include a first surface 1S and a second surface 2S opposite to the first surface 1S. The elastic member 100 may include a first surface 1S. ) Alternatively, the second surfaces 2S may be bent to face each other. That is, it may be bent so that the side on which the panels are arranged faces, or it can be bent so that the side opposite to the side on which the panels are arranged faces.

However, the embodiment is not limited to this, and the second surface and the first surface of the elastic member 100 may be bent to face each other alternately. That is, the elastic member 100 may include a plurality of first regions and a plurality of second regions.

The following description will focus on bending the first surfaces 1S of the elastic member 100 in directions facing each other, as shown in FIG. 2 .

As explained earlier. The elastic member 100 may be defined by a first area (1A) and a second area (2A). The first area 1A and the second area 2A may be areas defined when the elastic member 100 is bent in a direction where the first surfaces 1S face each other.

In detail, the elastic member 100 is bent in one direction, and the elastic member 100 has a first region 1A that is a folded region (folding region) and a second region that is not folded (unfolded region). It can be divided into areas (2A).

Referring to FIGS. 3 and 4 , the elastic member 100 may include a first region 1A, which is an area where the elastic member 100 is bent. Additionally, the elastic member 100 may include a second area 2A disposed adjacent to the first area 1A. The second area 2A is an area that does not bend.

For example, the second area 2A may be formed on the left and right sides of the first area 1A, respectively, based on the direction in which the elastic member 100 is bent. That is, the second area 2A may be disposed at both ends of the first area 1A. That is, the first area 1A may be disposed between the second areas 2A.

However, the embodiment is not limited to this, and the first area 1A may be further formed outside the second area 2A.

The first area 1A and the second area 2A may be formed on the same elastic member 100. That is, the first area 1A and the second area 2A may be formed integrally with the same elastic member 100 without being separated.

The sizes of the first area 1A and the second area 2A may be different from each other. In detail, the size of the second area 2A may be larger than the size of the first area 1A.

Additionally, the area of the first area 1A of the elastic member 100 may be 1% or more and 30% or less of the total area of the elastic member 100. In detail, the area of the first area 1A of the elastic member 100 may be 5% or more and 20% or less of the total area of the elastic member 100. The area of the first area 1A of the elastic member 100 may be 10% or more and 15% or less of the total area of the elastic member 100.

When the area of the first area 1A of the elastic member 100 is less than 1% of the total area of the elastic member 100, folding and restoring the elastic member is repeated, and the folding area of the elastic member and Cracks may occur at the boundary of the unfolding area, thereby reducing the folding reliability of the elastic member 100.

Additionally, when the area of the first area 1A of the elastic member 100 exceeds 30% of the total area of the elastic member 100, when the elastic member is folded, the display panel 2000 Curl may occur in the folding area.

In the drawing, the first area 1A is shown to be located in the central part of the elastic member 100, but the embodiment is not limited thereto, that is, the first area 1A is located at the center of the elastic member 100. It may be located in the end and end regions. That is, the first area 1A may be located at one end and an end area of the elastic member 100 so that the size of the first area 1A is asymmetric.

Figure 4 is a side view of the elastic member after the elastic member is folded.

Referring to FIG. 4, the elastic member 100 can be folded in one direction about the folding axis. In detail, the first surfaces 1S may be folded in a direction facing each other along the folding axis.

As the elastic member 100 is folded in one direction, a first area 1A and a second area 2A may be formed in the elastic member 100. That is, a folding area formed as the elastic member 100 is folded in one direction and an unfolding area located at both ends of the folding area may be formed in the elastic member 100.

The folding area may be defined as an area where a curvature (R) is formed, and the unfolding area may be defined as an area where the curvature (R) is not formed or the curvature is close to 0.

Referring to FIGS. 3 and 4 , the elastic member 100 may be folded in one direction to form an unfolding region, a folding region, and an unfolding region in that order.

A plurality of pattern parts may be formed in at least one of the first area 1A and the second area 2A to reduce or distribute stress generated when folding the elastic member 100. The pattern parts will be described in detail below.

Meanwhile, in FIG. 4, it is shown that the first surfaces 1S of the elastic member 100 are folded to face each other, but the embodiment is not limited thereto, and the elastic member 100 may be folded so that the second surfaces 2S face each other. there is.

In addition, although FIG. 4 shows that the curvature of the elastic member 100 decreases (increases the radius of curvature) as it extends from the center of the folding axis, the embodiment is not limited thereto. For example, the elastic member 100 may have a curvature that decreases or increases while extending from the center of the folding axis. That is, the elastic member 100 may be formed in a shape in which the curvature decreases and then increases while extending from the center of the folding axis, or the curvature decreases and then increases and then decreases again. That is, the folding shape of the elastic member 100 may be formed in various folding shapes as well as the U-shape.

Figure 5 is a top view of an elastic member according to an embodiment.

The elastic member 100 may include a plurality of pattern portions. In detail, a pattern portion including a plurality of patterns may be disposed in the first area 1A.

For example, the pattern portion PA includes a plurality of first pattern portions PA1 and a plurality of second pattern portions PA2 including a plurality of patterns spaced apart in the first direction 1D. can do.

The plurality of first pattern parts PA1 are arranged to be spaced apart in the second direction 2D. Additionally, the plurality of second pattern portions PA2 are arranged to be spaced apart in the second direction 2D. Additionally, the first pattern part PA1 and the second pattern part PA2 may be arranged to be spaced apart from each other in the second direction 2D. Additionally, the first pattern portion PA1 and the second pattern portion PA2 may be alternately arranged.

The first pattern P1 of the first pattern part PA1 and the second pattern P2 of the second pattern part PA2 may be arranged to face each other in the second direction 2D. For example, the first pattern P1 and the second pattern P2 may be disposed to partially overlap in the second direction 2D. For example, the first pattern P1 of the first pattern part PA1 and the second pattern P2 of the second pattern part PA2 may be arranged in a zigzag shape.

However, the embodiment is not limited to this, and the first pattern P1 and the second pattern P2 may be arranged to overlap in the second direction 2D.

The first pattern (P1) and the second pattern (P2) may be formed to penetrate the elastic member 100. For example, the first pattern (P1) and the second pattern (P2) may pass through the elastic member 100 and be formed in the shape of a hole. Alternatively, the first pattern (P1) and the second pattern (P2) may be formed in a groove shape by partially penetrating the elastic member 100.

The first pattern portion PA1 and the second pattern portion PA2 may reduce and disperse stress generated when the first region 1A is folded. Accordingly, when the elastic member is folded, the first area 1A can be prevented from being deformed.

At least one of the first patterns P1 may open an end area of the elastic member. In detail, at least one of the first patterns P1 may be disposed with an opening in an end area of the elastic member facing in the first direction 1D.

Among the plurality of first patterns (P1), the first pattern (P1) disposed to open the end area facing the first direction (1D) of the elastic member may be defined as the hinge portion (HN). In detail, among the plurality of first patterns (P1), the first pattern (P1) disposed at the end in the first direction (1D) includes a hinge portion (HN) disposed while opening one end area of the elastic member. can do.

The elastic member 100 can be easily folded in the first area 1A by the hinge portion HN. That is, the hinge portion HN may be defined as a point where folding begins in the first area 1A.

The first area 1A and the second area 2A may be defined by the pattern portion PA. In detail, the first area 1A may be defined as an area from a starting point to an ending point of the pattern portion PA, and the second area 2A may be defined as an area other than the starting point.

Alternatively, the first area 1A is defined as an area from the first first pattern part PA1 to the last first pattern part PA1 among the plurality of first pattern parts PA1, and the second area (2A) can be defined as other areas.

Alternatively, the first area 1A may be defined as an area from the first hinge part HN to the last hinge part HN among the plurality of hinge parts, and the second area 2A may be defined as an area other than the plurality of hinge parts. You can.

The elastic member 100 may include a plurality of protrusions PR. In detail, the plurality of protrusions PR may be disposed at the edge OL of the elastic member 100. The protrusion PR may be disposed to protrude outside the edge OL.

The protrusion PR may be formed in the process of separating the elastic member 100 and the frame 200.

Referring to FIG. 6, the elastic member 100 may be coupled to the frame 200 before being coupled to the display device.

In detail, the elastic member 100 and the frame 200 may be connected by the bridge portion BR while being spaced apart by a hole H. The elastic member 100 and the frame 200 may be separated from each other through the cut area CL of the bridge portion BR.

The protrusion PR may be formed by a bridge portion remaining when the elastic member 100 and the frame 200 are separated.

The protrusion PR may be arranged to be spaced apart from an end of the first area 1A. In detail, the protrusion PR may be arranged to be spaced apart from the first pattern part PA1 disposed on the outermost side among the plurality of first pattern parts PA1 in the second direction 2D. In detail, the protrusion PR may be arranged to be spaced apart from the hinge part HN disposed on the outermost side among the plurality of hinge parts HN in the second direction 2D.

The distance G between the protrusion closest to the outermost first pattern portion PA1 among the plurality of protrusions and the outermost first pattern portion PA1 may have a set size. In other words, the distance G between the outermost hinge part HN and the protrusion closest to the outermost hinge part HN among the plurality of protrusions may have a set size.

The distance (G) may exceed 0. That is, the protrusion does not contact the first pattern part or the hinge part. The distance (G) may be 5 mm or less. That is, the distance (G) may be greater than 0 to 5 mm.

When the distance G of the protrusion satisfies the above range, deformation of the pattern portion of the elastic member 100 may be reduced. That is, the elastic member 100 has the spacing between the first pattern portions PA1, the spacing between the second pattern portions PA2, the first pattern portion PA1, and the Spacing of the second pattern portions (PA), spacing of the first patterns (P1), spacing of the second patterns (P2), width and length of the first pattern (P1), and spacing of the second pattern (P2) Deformation of width and length can be reduced.

Additionally, when the distance G of the protrusion is outside the above range, deformation of the pattern portion of the elastic member 100 may increase. That is, when the distance (G) of the protrusion exceeds 5 mm, the distance (G) of the protrusion determines the spacing between the first pattern portions (PA1), the spacing between the second pattern portions (PA2), and the The spacing between the first pattern portion PA1 and the second pattern portion PA, the spacing between the first patterns P1, the spacing between the second patterns P2, the width and length of the first pattern P1, Deformation of the width and length of the second pattern P2 may increase.

Alternatively, the distance G may be greater than or equal to 3 times the maximum length of the patterns P1 and P2 in the second direction 2D. or. The distance (G) may be greater than or equal to the minimum width of the patterns (P1, P2) and less than or equal to twice the maximum length of the patterns (P1, P2). Alternatively, the distance (G) may be greater than or equal to twice the maximum length of the patterns (P1, P2) in the second direction (2D). It may be more than the spacing or less than the maximum length. Alternatively, the distance G may be more than twice the spacing in the second direction 2D and less than 10 times the spacing in the second direction 2D of the patterns P1 and P2. Alternatively, the distance G may be greater than or equal to the width of the protrusion PR.

As previously described, the protrusion PR may be formed by the bridge part BR. The bridge portion BR may connect the elastic member 100 and the frame 200. Additionally, the bridge portion BR may reduce the degree of sagging of the elastic member 100.

In detail, when the elastic member module in which the elastic member and the frame are coupled is bent in one direction, the elastic member and the frame are also bent in the same direction. At this time, since the elastic member has a larger area than the frame, it may be bent more than the frame. Accordingly, a sagging phenomenon in which the first region of the elastic member sinks in one direction may occur. As the degree of this sagging phenomenon increases, the stress applied to the first region increases, and deformation of the pattern portion and pattern may increase.

Accordingly, the bridge portion and the protrusion portion may be arranged as close to the outermost first pattern portion or hinge portion as a set size. As a result, the degree of sagging of the first region can be reduced. That is, since the bridge portion can serve to fix the first region when it sags, the degree of sagging can be reduced when the first region sinks in one direction.

Additionally, since the bridge portion and the protrusion portion are disposed close to the outermost first pattern portion or hinge portion by a set size, stress generated when the elastic member module is bent can be effectively distributed. That is, stress generated when the elastic member module is bent may be transferred to the frame through the bridge portion. Accordingly, by distributing the stress of the elastic member module, it is possible to prevent stress from being concentrated in one area of the elastic member. Accordingly, it is possible to prevent the waviness of the surface of the elastic member from increasing, and thereby, the surface of the elastic member can be flattened.

In addition, since the bridge portion and the protrusion are disposed close to the outermost first pattern portion or hinge portion by a set size, the number of bridge portions and protrusions disposed at the edge of the elastic member in the first direction (1D) is can be increased.

The elastic member module can form a pattern on the elastic member through a roll-to-roll process. Accordingly, the elastic member module can be disposed by being wound around a roller in the second direction. Accordingly, when a roll-to-roll process is performed, a tensile force is generated in the second direction and the bridge portion may be broken. Additionally, when the plurality of bridge parts are broken, the coupling force between the elastic member and the frame decreases. Accordingly, the elastic member may be separated from the frame during the process of forming a pattern on the elastic member. Accordingly, by increasing the number of bridge portions and protrusions, the area connecting the elastic member and the frame can be increased. As a result, it is possible to prevent the elastic member and the frame from being separated during the roll-to-roll process of the elastic member module.

Figures 7 to 9 are diagrams for explaining the deformation of the pattern of the elastic member according to the position of the protruding part of the elastic member. Figure 7 is a view when the distance (G) of the protrusion is 5 mm or less, where (a) is a view of the inner side of the folding and (b) is a view of the outer side of the folding. Figure 8 is a view when the distance (G) of the protrusion is more than 5 mm to 10 mm, (a) is a view of the inner side of the folding, and (b) is a view of the outer side of the folding. Figure 9 is a view when the distance (G) of the protrusion is more than 10 mm, where (a) is a view of the inner side of the folding and (b) is a view of the outer side of the folding.

Referring to FIG. 7, when the distance G of the protrusion is 5 mm or less, when the elastic member module is bent, the extent to which the first region is sagged in one direction by the protrusion is small. That is, since the protrusion PR serves to fix the first region, the degree of sagging of the first region can be reduced. Accordingly, deformation of the pattern portion and the pattern disposed in the first area 1A can be reduced.

Referring to FIG. 8, when the distance (G) of the protrusion is greater than 5 mm to 10 mm, when the elastic member module is bent, the degree to which the first region sags in one direction is greater than that of FIG. 7. That is, because the protrusion PR is disposed too far to fix the first region, the degree of sagging of the first region cannot be reduced. Accordingly, deformation of the pattern portion and pattern disposed in the first area 1A may increase.

Referring to FIG. 9, when the distance G of the protrusion is greater than 10 mm, when the elastic member module is bent, the degree to which the first region sags in one direction is greater than that of FIGS. 7 and 8. That is, because the protrusion PR is disposed too far to fix the first region, the degree of sagging of the first region cannot be reduced. Accordingly, deformation of the pattern portion and pattern disposed in the first area 1A may increase.

Hereinafter, with reference to FIG. 10, an elastic member according to another embodiment will be described. In elastic members according to other embodiments, descriptions are omitted for components that are the same or similar to the elastic members described above, and the same reference numerals are assigned to the same components.

Referring to FIG. 10 , the elastic member 100 may include a first protrusion (PR1) and a second protrusion (PR2). The first protrusion PR1 may be a protrusion closest to the first area 1A among the plurality of protrusions. Alternatively, the first protrusion PR1 may be a protrusion closest to the outermost first pattern part PA1 among the plurality of protrusions. Alternatively, the first protrusion PR1 may be a protrusion closest to the outermost hinge portion HN among the plurality of protrusions. Additionally, the second protrusion PR2 may be defined as a protrusion other than the first protrusion PR1.

Similarly to the previously described embodiment, the distance G between the first protrusion PR1 and the outermost first pattern part PA1 or the outermost hinge part HN is greater than 0 to 5 mm. You can.

The first protrusion PR1 and the second protrusion PR2 may have different sizes. In detail, the length L1-1 of the first protrusion PR1 may be different from the length L1-2 of the second protrusion PR2. Alternatively, the width W1-1 of the first protrusion PR1 may be different from the width W1-2 of the second protrusion PR2. or. The length L1-1 of the first protrusion PR1 is different from the length L1-2 of the second protrusion PR2, and the width W1-1 of the first protrusion PR1 is different from the second protrusion PR2. It may be different from the width (W1-2) of the protrusion (PR2). Alternatively, the area (L1-1*W1-1) of the first protrusion (PR1) may be different from the area (L1-2*W1-2) of the second protrusion (PR2).

Additionally, the width of the first protrusion PR1 and the second protrusion PR2 is smaller than the length of the first pattern part PA1. It may be larger than the width of the first pattern portion PA1. For example, the width of the first protrusion PR1 and the second protrusion PR2 is smaller than the length of the first pattern part PA1 and is 2 or 3 times the width of the first pattern part PA1. It can be bigger than a ship.

If the width of the first protrusion PR1 and the second protrusion PR2 is greater than the length of the first pattern part PA1, a folding defect may occur when folding the elastic member. In addition, due to the first protrusion adjacent to the hinge portion and having a wider width, the hinge portion adjacent to the first protrusion is deformed by opening (widening) during folding compared to the hinge portion adjacent to the folding axis, causing the hinge portion to become wider. Problems may arise where the width of the cattails varies.

In addition, the width of the first protrusion PR1 and the second protrusion PR2 is smaller than the width of the first pattern part PA1, and the protrusion may be formed during the process of manufacturing the elastic member or during the folding test of the elastic member. Breaking problems may occur.

For example, the size of the first protrusion PR1 may be larger than the size of the second protrusion PR2. In detail, the area of the first protrusion PR1 may be larger than the area of the second protrusion PR2. For example, when forming a bridge portion connecting the elastic member 100 and the frame 200, the width or length of the bridge portion corresponding to the first protrusion PR1 is set to correspond to the second protrusion PR2. It can be formed larger than the width of the bridge portion. Accordingly, after separating the elastic member and the frame, the area of the first protrusion PR1 can be made larger than the area of the second protrusion PR2.

Since the area of the first protrusion PR1 is larger than the area of the second protrusion PR2, the degree of sagging of the first area can be reduced. That is, as the area of the first protrusion PR1 increases, the fixing force with which the first protrusion PR1 can fix the first area may also increase. Accordingly, when the elastic member module is bent, the degree of sagging of the first region of the elastic member can be reduced, thereby reducing deformation of the pattern portion and pattern of the elastic member.

Hereinafter, with reference to FIG. 11, an elastic member according to another embodiment will be described. In the elastic member according to another embodiment, descriptions are omitted for components identical to those of the previously described elastic member, and the same reference numerals are assigned to the same components.

Referring to FIG. 11 , the elastic member 100 may include a first protrusion (PR1) and a second protrusion (PR2). The first protrusion PR1 may be defined as a protrusion whose distance from the first area 1A is less than 5 mm among the plurality of protrusions. Alternatively, it may be defined as a protrusion whose distance from the outermost first pattern portion PA1 among the plurality of protrusions is within 5 mm. Alternatively, it may be defined as a protrusion whose distance from the outermost hinge portion HN among the plurality of protrusions is within 5 mm. Additionally, the second protrusion PR2 may be defined as a protrusion other than the first protrusion PR1.

The first protrusion PR1 may include a plurality of protrusions. For example, the first protrusion PR1 may include a 1-1 protrusion PR1-1 and a 1-2 protrusion PR1-2. In detail, a plurality of protrusions may be disposed with a distance of less than 5 mm from the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. Although two protrusions are shown in FIG. 11, the embodiment is not limited thereto, and three or more protrusions may be disposed.

Since a plurality of protrusions having a distance of less than 5 mm from the first area 1A, the outermost first pattern portion PA1 or the outermost hinge portion HN are disposed, the first pattern portion ( PA1) spacing, spacing between the second pattern portions PA2, spacing between the first pattern portion PA1 and the second pattern portion PA, spacing between the first patterns P1, and the second pattern Deformation of the spacing between P2, the width and length of the first pattern P1, and the width and length of the second pattern P2 can be reduced.

In detail, since a plurality of protrusions are disposed with a distance of less than 5 mm from the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN, the elastic member The degree of sagging of the first area can be reduced. That is, since the fixing force for fixing the first region is increased by the protrusion, the first region can be effectively fixed when the first region sags.

Additionally, the plurality of protrusions may be arranged at different intervals. In detail, the spacing between the protrusions having a distance of less than 5 mm from the first area 1A, the outermost first pattern part PA1 or the outermost hinge part HN is the first area 1A. , the spacing between the outermost first pattern part PA1 or the outermost hinge part HN and the protrusions having a distance of more than 5 mm may be different. In detail, the spacing between the protrusions having a distance of less than 5 mm from the first area 1A, the outermost first pattern part PA1 or the outermost hinge part HN is the first area 1A. , may be smaller than the spacing between the outermost first pattern part PA1 or the outermost hinge part HN and the protrusions having a distance of more than 5 mm.

For example, the distance D1 between the 1-1 protrusion PR1-1 and the 1-2 protrusion PR1-2 may be smaller than the distance D2 between the second protrusion PR2. . In addition, the distance D1 between the 1-1 protrusion (PR1-1) and the 1-2 protrusion (PR1-2) is equal to the distance between the 1-2 protrusion (PR1-2) and the second protrusion (PR2). It may be smaller than the interval (D3) of .

That is, the spacing between the protrusions may increase as they move away from the first area 1A, the outermost first pattern part PA1, or the outermost hinge part HN. In other words, the spacing between the protrusions may decrease as they get closer to the first area 1A, the outermost first pattern part PA1, or the outermost hinge part HN.

Accordingly, when forming a pattern in the first region of the elastic member through a roll-to-roll process, separation of the elastic member and the frame can be prevented. In detail, when forming a pattern portion in the first region of the elastic member, a force for etching may be applied to the elastic member. Accordingly, the elastic member and the frame may be separated during the pattern forming process. Accordingly, the gap between the bridge portion and the protrusion is reduced in the area adjacent to the area where the pattern portion is formed, thereby preventing separation of the elastic member and the frame when forming a pattern on the elastic member.

Hereinafter, with reference to FIGS. 12 and 13, an elastic member according to another embodiment will be described. In the elastic member according to another embodiment, descriptions are omitted for components that are identical to and similar to the elastic member described above, and the same reference numerals are assigned to the same components. Additionally, the embodiment described in FIG. 12 may be combined with the previously described embodiments.

Referring to FIGS. 12 and 13 , the elastic member may include a plurality of pattern portions. In detail, a pattern portion including a plurality of patterns may be disposed in the first area 1A and the second area 2A.

For example, the pattern portion PA may include a plurality of first pattern portions PA1 and a plurality of second pattern portions PA2 including a plurality of patterns spaced apart from each other in the first direction. Additionally, the pattern portion PA may include a plurality of third pattern portions PA3 and a plurality of fourth pattern portions PA4 that are arranged to be spaced apart in the first direction and include a plurality of patterns.

The first pattern part PA1 and the second pattern part PA2 may be disposed in the first area 1A. The third pattern part PA3 and the fourth pattern part PA4 may be disposed in the second area 2A.

The plurality of third pattern parts PA3 are arranged to be spaced apart in the second direction 2D. Additionally, the plurality of fourth pattern portions PA4 are arranged to be spaced apart in the second direction 2D. Additionally, the third pattern part PA3 and the fourth pattern part PA4 may be arranged to be spaced apart from each other in the second direction 2D.

The third pattern P3 of the third pattern part PA3 and the fourth pattern P4 of the fourth pattern part PA4 may be arranged to face each other in the second direction 2D. For example, the third pattern P3 and the fourth pattern P4 may be disposed to partially overlap in the second direction 2D.

The third pattern (P3) and the fourth pattern (P4) may be formed to penetrate the elastic member 100. For example, the third pattern P3 and the fourth pattern P4 may pass through the elastic member 100 to form a hole shape. Alternatively, the third pattern (P3) and the fourth pattern (P4) may be formed in a groove shape by partially penetrating the elastic member 100.

The size of the third pattern P3 of the third pattern portions PA3 increases as it moves away from the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It can change. In detail, the size of the third pattern P3 of the third pattern portions PA3 is determined by the size of the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It may decrease as you move away.

For example, as shown in FIGS. 12 and 13, the length of the third pattern P3 of the third pattern portions PA3 is equal to the length of the first area 1A and the outermost first pattern portion PA1. ) or may decrease as it moves away from the outermost hinge portion (HN). Alternatively, the width of the third pattern P3 of the third pattern portions PA3 may be determined in the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It may decrease as you move away. Accordingly, the opening ratio of the elastic member formed by the third pattern portion PA3 is in the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It can decrease as you move away.

In addition, the size of the fourth pattern P4 of the fourth pattern portions PA4 is the same as in the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It can change as you move away. In detail, the size of the fourth pattern P4 of the fourth pattern portions PA4 is determined by the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It may decrease as you move away.

For example, as shown in FIGS. 12 and 13, the length of the fourth pattern P4 of the fourth pattern portions PA4 is equal to the length of the first area 1A and the outermost first pattern portion PA1. ) or may decrease as it moves away from the outermost hinge portion (HN). Alternatively, the width of the fourth pattern P4 of the fourth pattern portions PA4 may be determined by the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It may decrease as you move away. Accordingly, the opening ratio of the elastic member formed by the fourth pattern portion PA4 is in the first area 1A, the outermost first pattern portion PA1, or the outermost hinge portion HN. It can decrease as you move away.

That is, the third pattern part PA3 and the fourth pattern part PA4 may include a gradient pattern whose size varies depending on the position. The third pattern part PA3 and the fourth pattern part PA4 can prevent the boundary area between the first area 1A and the second area 2A from being viewed from the outside.

When the third pattern part PA3 and the fourth pattern part PA4 are not present, the boundary area between the first area and the second area may be visible from the outside. However, by arranging the third pattern part PA3 and the fourth pattern part PA4 of varying sizes in the second area, the boundary area between the first area and the second area is visible from the outside. It can be prevented.

The third pattern part PA3 and the fourth pattern part PA4 may be disposed in a partial area of the second area 2A. In detail, the second area 2A may include a 2-1 area 2-1A in which a pattern is formed and a 2-2 area 2-2A in which a pattern is not formed.

The 2-1 area 2-1A may be a boundary area between the folding area and the unfolding area.

The protrusion PR may include a first protrusion PR1 and a second protrusion PR2. The first protrusion PR1 is a protrusion closest to the first area 1A, the outermost first pattern part PA1, or the outermost hinge part HN among the plurality of protrusions PR. am. Additionally, the second protrusion PR2 is a protrusion other than the first protrusion PR1.

The first protrusion PR1 may be disposed to overlap the 2-1 area 2-1A. In detail, the first protrusion PR1 may be disposed to overlap the 2-1 area 2-1A in the first direction 1D.

Additionally, the second protrusion PR2 may be disposed to non-overlap the 2-1 area 2-1A. In detail, the second protrusion PR2 may be disposed to non-overlap the 2-1 area 2-1A in the first direction 1D.

Since the first protrusion PR1 is disposed overlapping the 2-1 area 2-1A where the third pattern part PA3 and the fourth pattern part PA4 are disposed, the 2-1 area The area of (2-1A) can be aligned. For example, the size of the area of the 2-1 area 2-1A can be set based on the position of the first protrusion PR1. Accordingly, it is possible to prevent the strength of the elastic member from decreasing due to an increase in the area of the 2-1 area (2-1A). Additionally, by reducing the size of the area of the 2-1 area 2-1A, it is possible to prevent the boundary between the first area and the second area from being visible in the elastic member.

In addition, since the first protrusion PR1 is disposed overlapping with the 2-1 area 2-1A where the third pattern portion PA3 and the fourth pattern portion PA4 are disposed, the 2- The area sizes of area 1 (2-1A) can be similar. In detail, based on the position of the first protrusion PR1, the area sizes of the 2-1 areas 2-1A disposed on the left and right sides of the first area can be controlled. Accordingly, the size of the area of the 2-1 area 2-1A can be made uniform. Accordingly, it is possible to prevent the opening ratio of the elastic member 100 from varying in one region of the elastic member. Accordingly, it is possible to prevent the elastic member from bending in one direction due to a difference in strength of the elastic member.

Additionally, referring to FIG. 13, the distance ds1 between the first protrusions PR1 at both ends of the first area may be smaller than the distance between other protrusions. In detail, referring to FIG. 13, the distance ds1 between the first protrusions PR1 facing in the second direction 2D is equal to the distance ds1 between the first protrusions PR1 facing in the second direction 2D. The distance ds2 between the second protrusions PR2 may be smaller than the distance ds3 between the second protrusions PR2 facing in the second direction 2D. Through this, the degree of sagging, like the degree of sagging in FIG. 7, can be reduced compared to the degree of sagging in FIG. 9.

Additionally, the first protrusion PR1 may be disposed to overlap the 2-1 area 2-1A in the first direction 1D. In detail, the distance from the folding axis (FAX) to the second protrusion (PR1) is smaller than the distance from the folding axis (FAX) to the outermost pattern of the 2-1 area (2-1A), and the folding axis It may be greater than the distance from (FAX) to the outermost pattern of the first area 1A.

Additionally, the edge area E of the elastic member may include a curved surface. In addition, the distance between the edge area (E) and the edge area (E) and the second protrusion (PR2) closest to the edge area (E) in the first direction (1D) is It may be smaller than the distance between the closest second protrusion PR2 and the edge area E. Accordingly, it is possible to prevent the edge area from sagging more than the frame when folding the elastic member. Accordingly, it is possible to prevent wear from occurring in the edge area during the manufacturing process of the elastic member and during the folding test.

Hereinafter, with reference to FIG. 14, a folding support body including an elastic member according to the previously described embodiment will be described.

Referring to FIG. 14, the folding support 1000 may include an elastic member 100, a planarization layer 200, an adhesive layer 300, and a protective layer 400.

The planarization layer 200 may be disposed on the elastic member 100 to flatten the surface of the elastic member 100. As previously described, a plurality of hole- or groove-shaped pattern parts are formed in the elastic member 100, and the surface of the elastic member 100 may not be flat due to the pattern parts. Accordingly, when a panel, etc. is adhered directly onto the elastic member 100, the adhesive strength with the panel may be reduced due to the surface characteristics of the elastic member 100.

Accordingly, the flattening layer 200 can be disposed on the elastic member 100 to flatten the adhesive surface where the elastic member 100 is bonded to the panel.

The planarization layer 200 may include metal or non-metal. In detail, the planarization layer 200 may include metal or plastic.

The adhesive layer 300 may be disposed between the elastic member 100 and the planarization layer 200. The adhesive layer 300 may be disposed between the elastic member 100 and the planarization layer 200 to adhere the elastic member 100 and the planarization layer 200.

For example, the adhesive layer 300 may include pressure sensitive adhesive (PSA), but the embodiment is not limited thereto.

The protective layer 400 may be disposed below the elastic member 100.

The protective layer 400 may have a color. For example, the protective layer 400 may be formed in a black color.

The protective layer 400 may include metal particles. For example, the protective layer 400 may include copper particles. Accordingly, the thermal conductivity of the protective layer 400 is improved, and heat generated from the display device can be dissipated through the protective layer 400.

Although FIG. 14 illustrates that the pattern portions PA1 and PA2 are disposed only in the first area 1A and the 2-1 area 2-1A, the embodiment is not limited thereto. For example, a pattern portion may be additionally disposed in the 2-2 area 2-2A.

Hereinafter, with reference to FIG. 15, a display device including a folding support according to the previously described embodiment will be described.

Referring to FIG. 15, the display device 10 may include a folding support and a panel.

The display device 10 may include the folding support and a panel layer 600 disposed on the folding support and including a display panel and/or a touch panel.

A bonding layer 500 is disposed between the elastic member 100 and the panel layer 600, and the elastic member 100 and the panel layer 600 can be bonded through the bonding layer 500. .

As previously explained, the elastic member 100 can flatten the adhesive surface of the elastic member by the planarization layer 200, so the elastic member and the panel layer can be stably bonded without being affected by the level.

The adhesive layer 500 between the elastic member 100 and the panel layer 600 may have different characteristics from the third layer 300 of the elastic member 100.

In detail, the adhesive layer 500 may have a thickness smaller than the third layer 300. For example, the thickness of the adhesive layer 500 may be 5㎛ to 15㎛.

Figure 16 is a diagram for explaining an example in which an elastic member according to embodiments is applied.

Referring to FIG. 16, elastic members according to embodiments may be applied to a flexible or foldable display device that displays a display.

For example, elastic members according to embodiments may be applied to flexible display devices such as mobile phones and tablets.

These elastic members can be applied to flexible display devices such as mobile phones and tablets that are flexible, bent, or folded.

The elastic member can be applied to flexible display devices such as mobile phones and tablets that are flexible, bent, or folded, and can improve the reliability of the flexible display device by improving folding reliability in a display device that is repeatedly folded or restored.

The features, structures, effects, etc. described in the above-described embodiments are included in at least one embodiment of the present invention and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified and implemented in other embodiments by a person with ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

In addition, although the description has been made focusing on the embodiments above, this is only an example and does not limit the present invention, and those skilled in the art will understand the above examples without departing from the essential characteristics of the present embodiments. You will be able to see that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. And these variations and differences in application should be construed as being included in the scope of the present invention as defined in the appended claims.

Claims (12)

An elastic member comprising a first region and a second region,
The elastic member has a first direction defined in the width direction and a second direction defined in the longitudinal direction,
The first area includes a plurality of first pattern portions including a plurality of first patterns arranged to be spaced apart in the first direction; and a plurality of second pattern portions including a plurality of second patterns arranged to be spaced apart in the first direction,
The plurality of first pattern portions and the plurality of second pattern portions are alternately arranged,
Among the plurality of first patterns, a first pattern disposed at an end in a first direction includes a hinge portion disposed with an end area on one side open,
It includes a plurality of protrusions disposed on the edge of the elastic member,
An elastic member wherein the distance between the outermost hinge part and the protrusion closest to the outermost hinge part among the plurality of protrusions is greater than 0 to 5 mm. According to clause 1,
The protrusion includes a first protrusion closest to the outermost hinge portion among the plurality of protrusions and a second protrusion other than the first protrusion,
An elastic member wherein the size of the first protrusion and the size of the second protrusion are different. According to clause 2,
The elastic member wherein the size of the first protrusion is larger than the size of the second protrusion. According to clause 1,
The protrusion includes a first protrusion closest to the outermost hinge portion among the plurality of protrusions and a second protrusion other than the first protrusion,
The first protrusion is an elastic member including a plurality of protrusions. According to clause 4,
An elastic member wherein the spacing between the first protrusions and the spacing between the second protrusions are different. According to clause 5,
An elastic member wherein the spacing of the first protrusions is smaller than the spacing of the second protrusions. According to clause 4,
The first protrusion includes a 1-1 protrusion and a 1-2 protrusion,
The elastic member wherein a gap between the 1-1 protrusion and the 1-2 protrusion is smaller than a gap between the second protrusions and a gap between the first protrusion and the second protrusion. According to clause 1,
The second area includes a plurality of third pattern portions including a plurality of third patterns spaced apart from each other in the first direction; and a plurality of fourth pattern portions including a plurality of fourth patterns arranged to be spaced apart in the first direction,
The second area includes a 2-1 area where the third pattern part and the fourth pattern part are disposed, and a 2-2 area other than the 2-1 area,
The protrusion includes a first protrusion closest to the outermost hinge portion among the plurality of protrusions and a second protrusion other than the first protrusion,
The first protrusion and the 2-1 region are arranged to overlap in the first direction. According to clause 8,
The second protrusion and the 2-1 region are arranged to non-overlap in the first direction. According to clause 8,
The length of the third pattern of the third pattern portions decreases as it moves away from the outermost hinge portion (HN),
The elastic member wherein the length of the fourth pattern of the fourth pattern portions decreases as it moves away from the outermost hinge portion. The elastic member of any one of claims 1 to 10;
a protective layer disposed below the elastic member; and
A folding support including a flattening layer disposed on top of the elastic member. The elastic member of any one of claims 1 to 10;
a protective layer disposed below the elastic member;
a planarization layer disposed on top of the elastic member;
an adhesive layer on the planarization layer; and
Comprising a panel layer on the adhesive layer,
The panel layer is a display device including at least one of a display panel and a touch panel.

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