Window, display device including same, and window manufacturing method

Abstract

The invention discloses a window body, a display device comprising the same and a window body manufacturing method. A display device according to an embodiment of the present invention includes a folding region folded on a plane around a virtual folding axis and a non-folding region adjacent to the folding region. The display device includes: a display panel; and a window body disposed on the display panel, the window body including: a patterned glass including a pattern portion corresponding to the folding region and a non-pattern portion adjacent to the pattern portion and corresponding to the non-folding region; and a first resin layer disposed on the patterned glass and defining a plurality of first groove patterns on the upper surface of the patterned portion, the first resin layer includes a plurality of first filling patterns filled in each of the plurality of first groove patterns, and a first flat portion disposed directly on the plurality of first filling patterns and the pattern portion.

Description

TECHNICAL FIELD

[0001] The present application relates to a window, a display device including the same, and a window manufacturing method, and more particularly, to a foldable window, a display device including the same, and a foldable window manufacturing method. BACKGROUND

[0002] A display device displays various images in a display screen to provide information to a user. Generally, a display device displays information within an allocated screen.

[0003] Recently, a flexible display device including a foldable flexible display panel is being developed. Unlike a rigid display device, a flexible display device can be folded, rolled, or bent. A flexible display device, whose shape can be variously changed, can be carried on the body without being limited by a screen size of the past, and thus user convenience can be improved. SUMMARY

[0004] An object of the present application is to provide a window having excellent recognition and improved manufacturing efficiency.

[0005] An object of the present application is to provide a display device including a window having excellent recognition and improved manufacturing efficiency.

[0006] An object of the present application is to provide a window manufacturing method having improved process efficiency.

[0007] A display device according to an embodiment of the present application includes a folding area folded on a plane with a virtual folding axis as a center and a non-folding area adjacent to the folding area, the display device including: a display panel; and a window disposed on the display panel, the window including: a pattern glass including a pattern portion corresponding to the folding area and a non-pattern portion adjacent to the pattern portion and corresponding to the non-folding area; and a first resin layer disposed on the pattern glass, the first resin layer including a plurality of first recess patterns defined on an upper surface of the pattern portion, the first resin layer including a plurality of first filling patterns filled in each of the plurality of first recess patterns and a first flat portion disposed directly on the plurality of first filling patterns and the pattern portion.

[0008] The first resin layer can include an organic material including at least one of a polyurethane-based resin, an epoxy-based resin, a polyimide-based resin, a polyester-based resin, a polyether-based resin, an acrylate-based resin, and an ABS resin.

[0009] The organic material can include an ultraviolet-curable resin.

[0010] The first resin layer can not include the substance in which at least a portion of the organic matter is oxidized.

[0011] The first flat portion can overlap the entire folding area.

[0012] The first flat portion can have a thickness of 0.01 μm or more and 0.2 μm or less.

[0013] The virtual folding axis can extend in a first direction, the non-folding area can include a first non-folding area and a second non-folding area spaced apart from each other in a second direction perpendicular to the first direction across the folding area, and the plurality of first groove patterns can be arranged spaced apart from each other in the second direction.

[0014] The window can further include a second resin layer disposed below the patterned glass, a plurality of second groove patterns defined at a lower surface of the patterned portion, the second resin layer including a plurality of second filling patterns filled in each of the plurality of second groove patterns and a second flat portion disposed directly below the plurality of second filling patterns and the patterned portion.

[0015] The window can further include a window protection layer disposed on the first resin layer.

[0016] The display device can further include an optical layer disposed between the window and the display panel.

[0017] A window according to an embodiment of the present invention includes a patterned glass including a patterned portion in which a plurality of first groove patterns are defined at an upper surface and at least a portion of which is folded, and a non-patterned portion adjacent to the patterned portion, and a first resin layer disposed on the patterned glass, the first resin layer including a plurality of first filling patterns filled in each of the plurality of first groove patterns and a first flat portion disposed directly above the plurality of first filling patterns and the patterned portion.

[0018] A window manufacturing method according to an embodiment of the present invention includes the steps of providing a patterned glass including a patterned portion in which a plurality of groove patterns are defined at a surface and at least a portion of which is folded in a plane, and a non-patterned portion adjacent to the patterned portion, providing a stage in which a plurality of recess patterns corresponding to each of the plurality of groove patterns are defined at a surface, to below the patterned glass, coating resin on the surface of the stage, moving the patterned glass in a direction close to the stage to press at least a portion of the resin to form a preliminary resin layer, curing the preliminary resin layer to form a resin layer, and separating the stage from the patterned glass and the resin layer.

[0019] Each of the plurality of recessed patterns can include a hydrophobic substance.

[0020] Each of the plurality of recessed patterns can have a contact angle of 150 degrees or more and 180 degrees or less with respect to water.

[0021] Each of the plurality of recessed patterns can have a contact angle with respect to the resin that is greater than a contact angle of each of the plurality of recessed patterns with respect to the resin.

[0022] Each of the plurality of recessed patterns can define a micro concavo-convex.

[0023] The preliminary resin layer can include a plurality of preliminary filling patterns filled in each of the plurality of recessed patterns and a preliminary flat portion disposed directly under the plurality of preliminary filling patterns and the pattern portion.

[0024] The step of curing the preliminary resin layer to form the resin layer can include a step of curing each of the plurality of preliminary filling patterns to form a plurality of filling patterns and a step of curing the preliminary flat portion to form a flat portion.

[0025] The step of curing the preliminary resin layer to form the resin layer can include a step of photo-curing the preliminary resin layer by irradiating ultraviolet light onto the pattern glass.

[0026] The step of curing the preliminary resin layer to form the resin layer can include a step of photo-curing the preliminary resin layer by irradiating ultraviolet light under a stage having a transmittance of 90% or more with respect to the ultraviolet light.

[0027] A window according to an embodiment of the present application and a display device including the same include a first resin layer having a first flat portion, thereby making it possible to solve a user recognition problem that can be caused by a pattern portion of a pattern glass.

[0028] A window manufacturing method according to an embodiment of the present application includes a resin layer forming step by a stage having a recessed pattern having a hydrophobic property, thereby making it possible to improve efficiency in a manufacturing process and improve user recognition of a window manufactured by the window manufacturing method according to an embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a perspective view of a display device according to an embodiment of the present application.

[0030] Figures 2a to 2d FIG. 2 is a view illustrating a state in which the display device shown in FIG. 1 is unfolded. Figure 1 FIG. 3 is a view illustrating a state in which the display device shown in FIG. 1 is folded.

[0031] Figure 3ais a perspective view showing an unfolded state of a display device according to an embodiment of the present application.

[0032] Figure 3b and Figure 3c is a view showing a folded state of the display device shown in Figure 3a

[0033] Figure 4 is an exploded perspective view of an electronic device according to an embodiment of the present application.

[0034] Figure 5a is a cross-sectional view of the display device taken along the cutting line I-I' shown in Figure 4

[0035] Figure 5b is an enlarged cross-sectional view of the A1 portion shown in Figure 5a

[0036] Figure 6 is a cross-sectional view showing a part of a cross-section of a window according to an embodiment of the present application.

[0037] Figure 7 is a flowchart showing a part of steps in a window manufacturing method according to an embodiment of the present application.

[0038] Figures 8a to 8e is a cross-sectional view showing a part of steps in a window manufacturing method according to an embodiment of the present application.

[0039] Figure 9 is a cross-sectional view showing a part of steps in a window manufacturing method according to another embodiment of the present application.

[0040] (Explanation of Reference Numerals)

[0041] DD: display device DP: display panel

[0042] DM: display module UM: upper module

[0043] WM: window PG: patterned glass

[0044] PP: patterned portion NPP1, NPP2: non-patterned portion

[0045] GP1: first groove pattern GP2: second groove pattern

[0046] RS1: first resin layer RS2: second resin layer

[0047] FP1: first filling pattern FP2: second filling pattern

[0048] TP1: first flat portion TP2: second flat portion ​​​DETAILED DESCRIPTION

[0049] In this specification, when referring to something being "on" or "connected to" or "coupled to" another thing, it is meant that something can be directly on or connected or coupled to another thing or intervening things can also be present.

[0050] The same reference numerals are used to designate the same elements throughout the specification. In addition, in the drawings, the thickness, proportions, and dimensions of the elements are exaggerated for effective explanation of the technical content. "And / or" includes all combinations of the elements defined by the relevant elements.

[0051] The first, second, and the like terms can be used to describe various elements, but the elements are not limited by the above terms. The above terms are used only for the purpose of distinguishing one element from other elements. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application. The singular expression includes the plural expression unless it is explicitly stated in the context.

[0052] In addition, the terms "below," "lower," "above," "upper," and the like are used to describe the relative relationship of the elements shown in the drawings. The above terms are relative concepts, and are described based on the direction shown in the drawings.

[0053] The terms "include" and "have" and the like should be understood as designating the presence of the features, numbers, steps, operations, elements, components, or combinations thereof described in the specification, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

[0054] Unless otherwise defined, all terms used in this specification, including technical terms and scientific terms, have the same meanings as those generally understood by those skilled in the art to which the present application pertains. In addition, terms such as terms defined in generally used dictionaries should be interpreted as having the same meanings as those in the context of relevant technology, and should not be interpreted too ideally or overly formally unless explicitly defined herein.

[0055] Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings.

[0056] Figure 1 is a perspective view of a display device according to an embodiment of the present application.

[0057] Referring to Figure 1The display device DD can be a device activated by an electrical signal. The display device DD can include various embodiments. For example, the display device DD can be used in large electronic devices such as televisions, monitors, and external billboards, and in small and medium-sized electronic devices such as personal computers, laptops, personal digital terminals, car navigation units, game consoles, portable electronic devices, and cameras. In this embodiment, an exemplary case is shown where the display device DD is a smartphone.

[0058] The display device DD has a rectangular shape with a short side in the first direction DR1 and a long side in the second direction DR2 intersecting the first direction DR1. However, the shape of the display device DD is not limited to this, and display devices DD of various shapes can be provided.

[0059] The display device DD can be a foldable display device. Specifically, according to an embodiment of the present invention, the display device DD can be folded with respect to a folding axis extending in a predetermined direction. Hereinafter, the unfolded and flat state is defined as the first state (i.e., the non-folded state), and the state folded with respect to the folding axis is defined as the second state (i.e., the folded state). The folding axis, as a rotation axis that occurs when the display device DD is folded, can be formed by the structural components of the display device DD.

[0060] The folding axis can extend along either a first direction DR1 or a second direction DR2. In one embodiment of the invention, the folding axis extending along the second direction DR2 is defined as a first folding axis FX1, and the folding axis extending along the first direction DR1 is defined as a second folding axis FX2. The display device DD may include either the first or second folding axis FX1 or FX2. That is, the display device DD can be folded with reference to either the first or second folding axis FX1 or FX2.

[0061] like Figure 1 As shown, the display device DD can display the image IM on each of the display surfaces IS parallel to the first direction DR1 and the second direction DR2. The display surface IS of the image IM can correspond to the front surface of the display device DD. The direction perpendicular to the display surface IS, i.e., the thickness direction of the display device DD, can be referred to as the third direction DR3. The display device DD can display the image IM facing the third direction DR3.

[0062] The display surface IS of the display device DD can be divided into multiple regions. Within the display surface IS of the display device DD, a display area DA and a non-display area NDA can be defined.

[0063] The display region DA can be a region in which the image IM is displayed, and the user recognizes the image IM through the display region DA. The display region DA can have a quadrangular shape. The non-display region NDA, which is a region adjacent to the display region DA, is a region in which the image IM is not displayed. The bezel region of the display device DD can be defined by the non-display region NDA. As an example of the present application, the non-display region NDA can surround the display region DA. Thus, the shape of the display region DA can be substantially defined by the non-display region NDA. However, it is exemplarily shown that the non-display region NDA can be disposed adjacent to only one side of the display region DA, and the non-display region NDA can be omitted.

[0064] The display device DD according to the present application can sense the user's input TC applied from the outside. The user's input TC includes various forms of external input such as a part of the user's body, light, heat, or pressure. In the present embodiment, the user's input TC is shown as a user's hand applied to the front. However, it is exemplarily shown that the user's input TC can be provided in various forms as described above, and in addition, the display device DD can sense the user's input TC applied to the side or the back of the display device DD according to the structure of the display device DD, and is not limited to any embodiment.

[0065] The display device DD can sense the user's input TC while activating the display surface IS to display the image IM. In the present embodiment, the region in which the user's input TC is sensed is shown as being disposed in the display region DA in which the image IM is displayed. However, it is exemplarily shown that the region in which the user's input TC is sensed can be provided in the non-display region NDA, or in all regions of the display surface IS.

[0066] Figures 2a to 2d is a view showing Figure 1 the display device folded.

[0067] Figure 2a is a view showing Figure 1 the display device DD in a state of being in-folded along the first folding axis FX1, Figure 2b is a view showing Figure 1 the display device DD in a state of being out-folded along the first folding axis FX1.

[0068] Figure 2c is a view showing Figure 1 the display device DD in a state of being in-folded along the second folding axis FX2, Figure 2d is a view showing Figure 1 the display device DD in a state of being out-folded along the second folding axis FX2.

[0069] Referring to Figures 2a to 2dThe display device DD can be a foldable display device. The display device DD can be folded with a folding axis extending in a predetermined direction, for example, the first folding axis FX1 or the second folding axis FX2 as a reference.

[0070] Referring to Figure 2a and Figure 2b A plurality of regions can be defined in the display device DD according to an operation form. The plurality of regions can be divided into a folding region FA1 and at least one non-folding region NFA1, NFA2. The folding region FA1 is defined between the two non-folding regions NFA1, NFA2.

[0071] The folding region FA1, which is folded based on the first folding axis FX1, is a region in which a curvature is substantially formed. Here, the first folding axis FX1 can extend in the second direction DR2, that is, the long axis direction of the display device DD. The folding region FA1 is defined as a region that is folded along the first folding axis FX1 and extends in the second direction DR2.

[0072] As an example of the present application, the non-folding regions NFA1, NFA2 can include a first non-folding region NFA1 and a second non-folding region NFA2. The first non-folding region NFA1 is adjacent to one side of the folding region FA1 in the first direction DR1, and the second non-folding region NFA2 is adjacent to the other side of the folding region FA1 in the first direction DR1.

[0073] The display device DD can be in-folded or out-folded. A case in which display surfaces of the folding regions FA1, FA2, which are folded to be different from each other, face each other is defined as in-folding, and a case in which display surfaces of the folding regions FA1, FA2, which are folded to be different from each other, are directed to the outside is defined as out-folding.

[0074] Figure 2a The display device DD shown can be in-folded so that the display surface IS (see Figure 1 ) of the first non-folding region NFA1 and the display surface IS (see Figure 1 ) of the second non-folding region NFA2 face each other. The first non-folding region NFA1 is rotated in a clockwise direction along the first folding axis FX1, so that the display device DD can be in-folded. In order to in-fold the display device DD so that the first non-folding region NFA1 and the second non-folding region NFA2 are aligned, the first folding axis FX1 can be defined at the center of the display device DD in the first direction DR1.

[0075] Referring to Figure 2b, the display device DD can be folded outward with the first folding axis FX1 as a reference. The display device DD can display the image IM when the display surface IS of the first non-folding area NFA1 and the display surface IS of the second non-folding area NFA2 are exposed to the outside. Also, the display surface IS of the folding area FA1 exposed to the outside can display the image IM. As shown in Figure 1 , the display device DD can display the image IM in the unfolded state. The first non-folding area NFA1, the second non-folding area NFA2, and the folding area FA1 can respectively display images providing information independent of each other, or respectively display portions of one image providing one information.

[0076] The display device DD can be manufactured to have both the inward folding state and the outward folding state, or to have either one of the inward folding and the outward folding.

[0077] Referring to Figure 2c , and Figure 2d , the display device DD can be folded inward or outward with the second folding axis FX2 as a reference. The second folding axis FX2 can extend in the first direction DR1, i.e., the short axis direction of the display device DD.

[0078] In the display device DD, a plurality of areas can be defined according to the working form. The plurality of areas can be divided into a folding area FA2 and at least one non-folding area NFA3, NFA4. The folding area FA2 is defined between the two non-folding areas NFA3, NFA4.

[0079] The folding area FA2, which is folded based on the second folding axis FX2, is an area in which a curvature is substantially formed. The folding area FA2 is defined as an area that is folded along the second folding axis FX2 and extends in the first direction DR1.

[0080] As an example of the present application, the non-folding areas NFA3, NFA4 can include a first non-folding area NFA3 and a second non-folding area NFA4. The first non-folding area NFA3 is adjacent to one side of the folding area FA2 in the second direction DR2, and the second non-folding area NFA4 is adjacent to the other side of the folding area FA2 in the second direction DR2.

[0081] Figure 3a is a perspective view of an unfolded state of a display device according to an embodiment of the present application. Figure 3b , and Figure 3c is a view showing a state in which the display device shown in Figure 3a is folded multiple times.

[0082] Referring to Figures 3a to 3c, the display device DD1 can be a multiple foldable display device. A plurality of folding areas can be defined in the display device DD1. The display device DD1 can include a plurality of folding areas FAa-1, FAa-2 and a plurality of non-folding areas NFAa-1, NFAa-2, NFAa-3. As an example of the present application, the display device DD1 can include a first folding area FAa-1, a second folding area FAa-2, a first non-folding area NFAa-1, a second non-folding area NFAa-2, and a third non-folding area NFAa-3. The first folding area FAa-1 is disposed between the first non-folding area NFAa-1 and the second non-folding area NFAa-2 in the first direction DR1, and the second folding area FAa-2 is disposed between the second non-folding area NFAa-2 and the third non-folding area NFAa-3. Two folding areas FAa-1, FAa-2 and three non-folding areas NFAa-1, NFAa-2, NFAa-3 are exemplarily shown, but the number of folding areas FAa-1, FAa-2 and non-folding areas NFAa-1, NFAa-2, NFAa-3 is not limited thereto, and can be further increased.

[0083] Referring to Figure 3a and Figure 3b , the first folding area FAa-1 can be folded with reference to a third folding axis FX3 parallel to the second direction DR2. The first folding area FAa-1 can be inner-folded such that the display face IS of the second non-folding area NFAa-2 and the display face IS of the first non-folding area NFAa-1 face each other. The second folding area FAa-2 can be folded with reference to a fourth folding axis FX4 parallel to the second direction DR2. The second folding area FAa-2 can be outer-folded such that the back face of the second non-folding area NFAa-2 and the back face of the third non-folding area NFAa-3 face each other and the display face IS of the third non-folding area NFAa-3 faces outward.

[0084] Referring to Figure 3a and Figure 3c , the first folding area FAa-1 can be folded with reference to a third folding axis FX3 parallel to the second direction DR2. The first folding area FAa-1 can be inner-folded such that the display face IS of the first non-folding area NFAa-1 is disposed inside, and the display face IS of the second non-folding area NFAa-2 and the display face IS of the first non-folding area NFAa-1 face each other. The second folding area FAa-2 can be folded with reference to a fourth folding axis FX4 parallel to the second direction DR2. The second folding area FAa-2 can be inner-folded such that the back face of the first non-folding area NFAa-1 and the display face IS of the third non-folding area NFAa-3 face each other.

[0085] In an embodiment of the present application, the outer-folding work and the inner-folding work can occur simultaneously, and only one of the outer-folding work and the inner-folding work can occur.

[0086] On the other hand, in Figure 3b and Figure 3c A state of multiple folding of the display device DD1 is shown, but is not limited thereto, and can have various folding forms.

[0087] Figure 4 is an exploded perspective view of an electronic device according to an embodiment of the present application, Figure 5a is a cross-sectional view of the display device taken along the cutting line I-I' shown in Figure 4 Figure 5b is an enlarged cross-sectional view of the A1 portion shown in Figure 5a

[0088] Referring to Figure 4 , Figure 5a and Figure 5b , the electronic device ED according to an embodiment of the present application includes a display device DD and a housing HU. Although not separately shown, the electronic device ED can further include a structural object (or a hinge structural object) for controlling folding work (or bending work) of the display device DD.

[0089] The display device DD according to an embodiment of the present application can include a display module DM displaying an image, an upper module UM disposed on the display module DM, and a lower module LM disposed under the display module DM. The display module DM can constitute a part of the display device DD, and particularly generate an image through the display module DM.

[0090] The display module DM can include a display panel DP and an input sensing unit ISP. The display panel DP according to an embodiment of the present application can be a light emitting type display panel, and is not particularly limited. For example, the display panel DP can be an organic light emitting display panel, an inorganic light emitting display panel, or a quantum dot light emitting display panel. A light emitting layer of the organic light emitting display panel can include an organic light emitting substance, and a light emitting layer of the inorganic light emitting display panel can include an inorganic light emitting substance. A light emitting layer of the quantum dot light emitting display panel can include quantum dots, quantum rods, or the like. Hereinafter, the display panel DP is described as an organic light emitting display panel.

[0091] The display panel DP can be a flexible display panel. Thus, the display panel DP can be entirely rolled or folded or unfolded around the folding axis FX2.

[0092] ​​​The input sensing unit ISP can be directly disposed on the display panel DP. According to an embodiment of the present application, the input sensing unit ISP can be formed on the display panel DP through a continuous process. That is, when the input sensing unit ISP is directly disposed on the display panel DP, an adhesive film is not disposed between the input sensing unit ISP and the display panel DP. However, the present application is not limited thereto. The adhesive film can be disposed between the input sensing unit ISP and the display panel DP. At this time, the input sensing unit ISP is not manufactured through a process continuous with the display panel DP, but can be fixed to the upper surface of the display panel DP through the adhesive film after being manufactured through a process separate from the display panel DP.

[0093] The display panel DP generates an image, and the input sensing unit ISP acquires coordinate information of an input (e.g., a touch event) of a user.

[0094] The upper module UM can include a window WM disposed on the display module DM. The window WM can include an optically transparent insulating substance. Thus, an image generated from the display module DM can pass through the window WM, and be easily recognized by a user. The window WM can include a patterned glass PG, a first resin layer RS1, a second resin layer RS2, and a window protection layer PL.

[0095] The patterned glass PG can include a glass substance. The patterned glass PG can include a patterned portion PP and non-patterned portions NPP1, NPP2. The patterned portion PP can be a portion corresponding to the folding area FA2, and the non-patterned portions NPP1, NPP2 can be portions corresponding to the first and second non-folding areas NFA3, NFA4. The non-patterned portions NPP1, NPP2 can include a first non-patterned portion NPP1 corresponding to the first non-folding area NFA3 and a second non-patterned portion NPP2 corresponding to the second non-folding area NFA4. The patterned portion PP can be disposed between the first and second non-patterned portions NPP1, NPP2.

[0096] The patterned glass PG can include an upper surface PG-F and a lower surface PG-B. The upper surface PG-F and the lower surface PG-B mean two surfaces opposite to each other in the patterned glass PG, for example, can be two surfaces facing each other in the third direction DR3. It can be that, in the patterned glass PG, a surface adjacent to the anti-reflection layer RPL or the display module DM in the third direction DR3 is the lower surface PG-B, and a surface adjacent to the window protection layer PL is the upper surface PG-F.

[0097] The pattern portion PP can include a plurality of groove patterns GP. In an embodiment, the plurality of groove patterns GP can include a plurality of first groove patterns GP1 provided on the upper surface PG-F of the pattern glass PG and a plurality of second groove patterns GP2 provided on the lower surface PG-B of the pattern glass PG. It can be that the first groove patterns GP1 have a shape recessed from the upper surface PG-F of the pattern glass PG toward the lower surface PG-B of the pattern glass PG, and the second groove patterns GP2 have a shape recessed from the lower surface PG-B of the pattern glass PG toward the upper surface PG-F of the pattern glass PG.

[0098] As an example of the present application, it can be that when the folding axis FX2 extends in the first direction DR1, the first groove patterns GP1 are arranged apart from each other in the second direction DR2, and the second groove patterns GP2 are arranged apart from each other in the second direction DR2. Alternatively, it can be that when the folding axis FX2 extends in the second direction DR2, the first groove patterns GP1 are arranged apart from each other in the first direction DR1, and the second groove patterns GP2 are arranged apart from each other in the first direction DR1.

[0099] The groove patterns GP can be filled with the first resin layer RS1 and the second resin layer RS2, respectively. It can be that the first resin layer RS1 fills the first groove patterns GP1, and the second resin layer RS2 fills the second groove patterns GP2. In other words, recessed spaces formed by the first groove patterns GP1 can be filled with the first resin layer RS1, and recessed spaces formed by the second groove patterns GP2 can be filled with the second resin layer RS2. As an example of the present application, it can be that the first resin layer RS1 and the second resin layer RS2 are provided only in the pattern portion PP, and not provided in the first and second non-pattern portions NPP1, NPP2. Detailed descriptions regarding the first resin layer RS1 and the second resin layer RS2 will be described later. Figure 6

[0100] ​The window body WM can further include a window protection layer PL. The window protection layer PL can be provided on the pattern glass PG. The window protection layer PL can be provided on the first resin layer RS1. The window protection layer PL can perform a function of protecting the pattern glass PG from external impact. The window protection layer PL can include a synthetic resin material. As an example of the present application, the window protection layer PL can include at least one selected from the group consisting of a urethane-based resin, an epoxy-based resin, a polyester-based resin, a polyether-based resin, an acrylate-based resin, an ABS resin (acrylonitrile-butadiene-styrene resin), and a rubber. In particular, the window protection layer PL can include at least one of phenylene, polyethylene terephthalate (PET), polyimide (PI), polyamide (PAI), polyethylene naphthalate (PEN), and polycarbonate (PC).

[0101] Although not shown, the window body WM can further include a first window adhesive layer and a second window adhesive layer. The first window adhesive layer can be disposed between the pattern glass PG and the window protection layer PL or between the first resin layer RS1 and the window protection layer PL to attach the window protection layer PL to the pattern glass PG or the first resin layer RS1. The second window adhesive layer can allow components disposed under the window body WM to be combined with the window body WM. The first window adhesive layer and the second window adhesive layer can include an optically transparent adhesive material. As an example, each of the first window adhesive layer and the second window adhesive layer can include a pressure sensitive adhesive (PSA), an optical clear adhesive (OCA), or an optical clear resin (OCR).

[0102] The window body WM can be folded or unfolded with the folding axis FX2 as a center. That is, the window body WM can be deformed in shape together with the display module DM when the shape of the display module DM is deformed. The window body WM relieves an external impact while transmitting an image from the display module DM, thereby preventing the display module DM from being damaged or malfunctioning due to the external impact. The external impact is a force from the outside that can be expressed as a pressure, a stress, etc., and means a force that causes a defect in the display module DM.

[0103] In addition, the upper module UM can further include one or more functional layers disposed between the display module DM and the window WM. As an example of the present application, the functional layer can be an anti-reflection layer RPL that blocks reflection of external light.

[0104] The anti-reflection layer RPL can prevent the problem of external recognition of the elements constituting the display module DM due to external light incident through the front surface of the display device DD. The anti-reflection layer RPL can include a retarder and a polarizer. The retarder can be of a film type or a liquid crystal coating type, and can include a λ / 2 retarder and / or a λ / 4 retarder. The polarizer can also be of a film type or a liquid crystal coating type. The film type can include a stretched synthetic resin film, and the liquid crystal coating type can include liquid crystals arranged in a predetermined array. The retarder and the polarizer can be implemented by one polarizing film. The functional layer can further include a protective film disposed above or below the anti-reflection layer RPL.

[0105] The upper module UM can further include a first adhesive film AF1 provided between the anti-reflection layer RPL and the display module DM. The first adhesive film AF1 can include an optically transparent adhesive substance. As an example of the present application, the first adhesive film AF1 can include a pressure sensitive adhesive (PSA), an optical clear adhesive (OCA), or an optical clear resin (OCR).

[0106] The display module DM can display an image according to an electrical signal, and transmit and receive information input from the outside. The display module DM can include an active area AA and a non-active area NAA. The active area AA can be defined as an area in which an image provided from the display module DM is output.

[0107] The non-active area NAA is adjacent to the active area AA. For example, the non-active area NAA can surround the active area AA. However, it is exemplarily shown that the non-active area NAA can be defined by various shapes, and is not limited to any embodiment. According to an embodiment, the active area AA of the display module DM can correspond to at least a portion of a display area DA (refer to FIG. 1) of the display device DD. Figure 1

[0108] The lower module LM includes a support plate SP disposed at the back of the display module DM to support the display module DM. The support plate SP can include a number of support plates corresponding to the non-folded areas NFA3, NFA4. As an example of the present application, the support plate SP can include a first support plate SP1 and a second support plate SP2 disposed apart from the first support plate SP1.

[0109] ​The first and second support plates SP1 and SP2 can be disposed corresponding to the first and second non-folded areas NFA3 and NFA4, respectively. The first support plate SP1 is disposed corresponding to the first non-folded area NFA3 of the display module DM, and the second support plate SP2 is disposed corresponding to the second non-folded area NFA4 of the display module DM. Each of the first and second support plates SP1 and SP2 can include a metal substance or a plastic substance.

[0110] When the display module DM has a flat first state, the first and second support plates SP1 and SP2 are disposed apart from each other in the second direction DR2. When the display module DM has a second state folded with the folding axis FX2 as a reference, the first and second support plates SP1 and SP2 can be disposed apart from each other in the third direction DR3.

[0111] The first and second support plates SP1 and SP2 can be spaced apart corresponding to the folded area FA2. The first and second support plates SP1 and SP2 can overlap a part of the folded area FA2. That is, a distance by which the first and second support plates SP1 and SP2 are spaced apart in the second direction DR2 can be less than a width of the folded area FA2.

[0112] The support plate SP can further include a connection module for connecting the first and second support plates SP1 and SP2. The connection module can include a hinge module or a multi-joint module.

[0113] The support plate SP is shown to have two support plates SP1 and SP2, but is not limited thereto. That is, if a plurality of folding axes FX2 are provided, the support plate SP can have a plurality of support plates separated with the plurality of folding axes FX2 as a reference. In addition, the support plate SP can be provided in a unitary shape without being separated into the first and second support plates SP1 and SP2. At this time, a bending portion can be provided in the support plate SP corresponding to the folded area FA2. An opening formed through the support plate SP or a groove recessed from one surface of the support plate SP can be provided in the bending portion.

[0114] The lower module LM further includes a protective film PF disposed between the display module DM and the support plate SP. The protective film PF can be a layer disposed under the display module DM to protect a rear surface of the display module DM. The protective film PF can include a synthetic resin film, for example, a polyimide film or a polyethylene terephthalate film. However, it is exemplary, and the protective film PF is not limited to the examples.

[0115] The lower mold module LM can further include a second adhesive film AF2 disposed between the protective film PF and the display module DM, and third adhesive films AF3_1, AF3_2 disposed between the protective film PF and the support plate SP. The protective film PF can be attached to the back surface of the display module DM by the second adhesive film AF2. As an example of the present application, the third adhesive films AF3_1, AF3_2 can include a first sub-adhesive film AF3_1 and a second sub-adhesive film AF3_2. The first sub-adhesive film AF3_1 is disposed between the first support plate SP1 and the protective film PF, and the second sub-adhesive film AF3_2 is disposed between the second support plate SP2 and the protective film PF. The first and second sub-adhesive films AF3_1, AF3_2 can be spaced apart from each other across the folding area FA2.

[0116] Each of the second and third adhesive films AF2, AF3_1, AF3_2 can include an optically transparent adhesive substance. As an example of the present application, each of the second and third adhesive films AF2, AF3_1, AF3_2 can include a pressure sensitive adhesive (PSA), an optical clear adhesive (OCA), or an optical clear resin (OCR).

[0117] The housing HU accommodates the other modules (i.e., the display module DM and the lower mold module LM, etc.) in combination with the window body WM, particularly the display device DD. It is shown that the housing HU includes first and second housings HU1, HU2 separated from each other, but is not limited thereto. Although not shown, the electronic device ED can further include a hinge structure for connecting the first and second housings HU1, HU2.

[0118] Hereinafter, the window body WM according to an embodiment of the present application will be described in detail with reference to the accompanying drawings.

[0119] Figure 6 is a cross-sectional view showing a portion of a cross section of a window body according to an embodiment of the present application. Figure 6 Enlarged Figure 5b The WW' area of Figure 5b ) is shown in more detail.

[0120] Referring to Figure 6 , the patterned glass PG (refer to Figure 5b ) can include a pattern portion PP corresponding to the folding area FA2. The pattern portion PP can include a plurality of groove patterns GP.

[0121] The groove pattern GP can have a shape corresponding to the folding axis FX2 (refer to Figure 1) and extending in a first direction DR1. The groove patterns GP can be arranged in a second direction DR2. Alternatively, each of the groove patterns GP can include a plurality of first sub-groove patterns arranged in the first direction DR1. Each of the first sub-groove patterns can have a stripe shape extending in the first direction DR1. In addition, the shape of the groove patterns GP in the plane is not limited to a circular shape, and can have various shapes such as a polygonal shape, as needed.

[0122] The plurality of groove patterns GP can include a first groove pattern GP1 having a groove shape recessed from an upper surface PG-F of the pattern glass PG and a second groove pattern GP2 having a groove shape recessed from a lower surface PG-B of the pattern glass PG. The first groove pattern GP1 and the second groove pattern GP2 can be filled with a first resin layer RS1 and a second resin layer RS2, respectively. A recessed space formed by the first groove pattern GP1 can be filled with the first resin layer RS1, and a recessed space formed by the second groove pattern GP2 can be filled with the second resin layer RS2.

[0123] Each of the first resin layer RS1 and the second resin layer RS2 can include an organic substance. Each of the first resin layer RS1 and the second resin layer RS2 can include an ultraviolet-curable resin. As an example of the present application, the organic substance included in each of the first resin layer RS1 and the second resin layer RS2 can include at least one selected from the group consisting of a polyurethane-based resin, an epoxy-based resin, a polyimide-based resin, a polyester-based resin, a polyether-based resin, an acrylate-based resin, an ABS resin (acrylonitrile-butadiene-styrene resin), and a rubber. Specifically, the organic substance included in each of the first resin layer RS1 and the second resin layer RS2 can include at least one of phenylene, polyethylene terephthalate (PET), polyimide (PI), polyamide (PAI), polyethylene naphthalate (PEN), and polycarbonate (PC). For example, each of the first resin layer RS1 and the second resin layer RS2 can include polyimide. It can be that each of the first resin layer RS1 and the second resin layer RS2 includes an organic substance, and does not include a substance in which at least a portion of the organic substance is oxidized. That is, each of a process of manufacturing the first resin layer RS1 and a process of manufacturing the second resin layer RS2 can be a process not exposed to oxygen.

[0124] The refractive indexes of the first and second resin layers RS1, RS2 can be substantially the same as the refractive index of the pattern glass PG (refer to Figure 5b ) with respect to light of the first wavelength. Thus, the window body WM (refer to Figure 4 ) according to an embodiment of the present application can achieve recognition above a constant level even though it includes the pattern glass PG (refer to Figure 5b ). On the other hand, in the present specification, "substantially the same" includes not only a case where the refractive index, thickness, etc. are physically exactly the same, but also a case where there is a difference within an error range occurring in a process even though the design is the same. The first wavelength can be 500 nm or more and 600 nm or less. For example, the first and second resin layers RS1, RS2 and the pattern glass PG (refer to Figure 5b ) can all have substantially the same refractive index with respect to green light.

[0125] The first resin layer RS1 can include a plurality of first filling patterns FP1 and a first flat portion TP1. The second resin layer RS2 can include a plurality of second filling patterns FP2 and a second flat portion TP2. The plurality of first filling patterns FP1 and the first flat portion TP1 can be formed by the same substance through the same process. The plurality of second filling patterns FP2 and the second flat portion TP2 can be formed by the same substance through the same process.

[0126] The plurality of first filling patterns FP1 can be defined as filling each of the plurality of first groove patterns GP1. The plurality of first filling patterns FP1 can fill a recessed space formed by the first groove pattern GP1. The plurality of second filling patterns FP2 can be defined as filling each of the plurality of second groove patterns GP2. The plurality of second filling patterns FP2 can fill a recessed space formed by the second groove pattern GP2.

[0127] The first flat portion TP1 can be directly disposed on the pattern glass PG (refer to Figure 5bThe first flat portion TP1 is disposed directly on the pattern portion PP. The first flat portion TP1 can cover the upper surface of the pattern portion PP and the upper surface of each of the plurality of first filling patterns FP1. The lower surface of the first flat portion TP1 can contact the upper surface PG-F of the pattern glass PG, or contact the upper surface of each of the plurality of first filling patterns FP1. The thickness T1 of the first flat portion TP1 can be more than 0.01 μm and less than 0.2 μm. For example, the thickness T1 of the first flat portion TP1 can be more than 0.1 μm and less than 0.2 μm. The first flat portion TP1 can correspond to the folded region FA2 and can be configured to overlap the entire surface of the folded region FA2. However, the form of the first flat portion TP1 is not limited to this. In another embodiment, the first flat portion TP1 can be configured to overlap a portion of the folded region FA2. Alternatively, in another embodiment, the first flat portion TP1 can also be configured to overlap the entire surface of the folded region FA2 and overlap the non-folded regions NFA3, NFA4 (see reference). Figure 5b Part of it overlaps.

[0128] The second flat section TP2 can be directly disposed on the patterned glass PG (see reference). Figure 5b The second flat portion TP2 is disposed directly below the patterned portion PP. The second flat portion TP2 can cover the lower surface of the patterned portion PP and the lower surface of each of the plurality of second filling patterns FP2. The upper surface of the second flat portion TP2 can contact the lower surface PG-B of the patterned glass PG, or contact the lower surface of each of the plurality of second filling patterns FP2. The thickness T2 of the second flat portion TP2 can be more than 0.01 μm and less than 0.2 μm. For example, the thickness T2 of the second flat portion TP2 can be more than 0.1 μm and less than 0.2 μm. The second flat portion TP2 can correspond to the folded region FA2 and can be configured to overlap the entire surface of the folded region FA2. However, the form of the second flat portion TP2 is not limited to this. In another embodiment, the second flat portion TP2 can be configured to overlap a portion of the folded region FA2. Alternatively, in another embodiment, the second flat portion TP2 can also be configured to overlap the entire surface of the folded region FA2 and overlap the non-folded regions NFA3, NFA4 (see reference). Figure 5b Part of it overlaps.

[0129] Figure 7 This is a flowchart illustrating a form manufacturing method according to an embodiment of the present invention. Figures 8a to 8e This is a cross-sectional view illustrating a portion of the steps in a form manufacturing method according to an embodiment of the present invention. Furthermore, in describing the form manufacturing method according to an embodiment of the present invention, the same reference numerals are used for configurations identical to those described above, and detailed descriptions are omitted.

[0130] Referring to Figure 7 , a window manufacturing method according to an embodiment of the present application includes a step of providing a pattern glass (S100), a step of providing a stage having a plurality of recess patterns defined on a surface under the pattern glass (S200), a step of applying a resin on a surface of the stage (S300), a step of pressurizing at least a portion of the resin to form a preliminary resin layer (S400), a step of curing the preliminary resin layer to form a resin layer (S500), and a step of separating the stage from the pattern glass and the resin layer (S600).

[0131] Figure 8a A step of providing a pattern glass (S100) and a step of providing a stage having a plurality of recess patterns defined on a surface under the pattern glass (S200) in a window manufacturing method according to an embodiment of the present application are outlined, Figure 8b A step of applying a resin on a surface of the stage (S300) is outlined, Figure 8c A step of pressurizing at least a portion of the resin to form a preliminary resin layer (S400) is outlined, Figure 8d A step of curing the preliminary resin layer to form a resin layer (S500) is outlined, Figure 8e A step of separating the stage from the pattern glass and the resin layer (S600) is outlined.

[0132] Referring to Figure 7 , and Figure 8a A window manufacturing method according to an embodiment of the present application includes a step of providing a pattern glass PG (S100) and a step of providing a stage ST having a plurality of recess patterns DPT defined on a surface A2 under the pattern glass PG (S200).

[0133] The pattern glass PG includes a pattern portion PP of which at least a portion is folded and a non-pattern portion NPP adjacent to the pattern portion PP. A plurality of groove patterns GP can be defined in a surface A1 of the pattern portion PP. For example, a plurality of groove patterns GP can be defined in a lower surface of the pattern portion PP. The pattern portion PP can be a portion corresponding to the aforementioned folding area FA2 (refer to Figure 5b ), and the non-pattern portion NPP can be a portion corresponding to the aforementioned non-folding areas NFA3, NFA4 (refer to Figure 5b ).

[0134] A plurality of recessed patterns DPT can be defined on a surface A2 of the stage ST. For example, a plurality of recessed patterns DPT can be defined on an upper surface of the stage ST. Each of the plurality of recessed patterns DPT can correspond to each of the plurality of groove patterns GP. The recessed spaces formed by the plurality of groove patterns GP and the recessed spaces formed by the plurality of recessed patterns DPT can be in a form facing each other in the third direction DR3. Each of the plurality of recessed patterns DPT can have various shapes as needed to connect to the shape of each of the plurality of groove patterns GP. As long as the resin RR (refer to Figure 8b ) to be described later can be filled in the plurality of groove patterns GP, each of the plurality of recessed patterns DPT can have various shapes without limitation.

[0135] Each of the plurality of recessed patterns DPT can be hydrophobic. Each of the plurality of recessed patterns DPT can be super-hydrophobic. The contact angle of each of the plurality of recessed patterns DPT with respect to water can be 150 degrees or more and 180 degrees or less. Each of the plurality of recessed patterns DPT can include a hydrophobic substance. Each of the plurality of recessed patterns DPT can include a super-hydrophobic substance. For example, each of the plurality of recessed patterns DPT can include a fluorine-based compound. Alternatively, each of the plurality of recessed patterns DPT can define a micro concavo-convex. For example, each of the plurality of recessed patterns DPT can define a micro concavo-convex having a diameter of 1 nm to 1000 nm.

[0136] Refer to Figure 7 and Figure 8b The window manufacturing method according to an embodiment of the present application includes a step of applying a resin RR on a surface A2 of a stage ST (S300).

[0137] The resin RR can include an ultraviolet light-curable resin. The resin RR can include at least one selected from a polyurethane-based resin, an epoxy-based resin, a polyimide-based resin, a polyester-based resin, a polyether-based resin, an acrylate-based resin, an ABS resin (acrylonitrile-butadiene-styrene resin), and a rubber. Specifically, the organic substance included in the resin RR can include at least one of phenylene, polyethyleneterephthalate (PET), polyimide (PI), polyamide (PAI), polyethylene naphthalate (PEN), and polycarbonate (PC).

[0138] Refer toFigure 7 、 Figure 8b and Figure 8c The window manufacturing method according to an embodiment of the present application includes a step (S400) of pressing at least a portion of the resin RR to form a preliminary resin layer P-RS.

[0139] The step (S400) of forming the preliminary resin layer P-RS includes a step of moving the pattern glass PG in a direction close to the stage ST to press at least a portion of the resin RR. The step (S400) of forming the preliminary resin layer P-RS can include a step of moving the pattern glass PG in an opposite direction of the third direction DR3 to apply a pressure to an upper surface of the resin RR through a surface A1 of the pattern glass PG in the opposite direction of the third direction DR3.

[0140] In the step (S400) of forming the preliminary resin layer P-RS, the resin RR can be separated from the recessed pattern DPT and be in contact with the groove pattern GP. The hydrophobicity of each of the plurality of recessed patterns DPT can be greater than the hydrophobicity of each of the plurality of groove patterns GP. The contact angle of each of the plurality of recessed patterns DPT with respect to the resin RR can be greater than the contact angle of each of the plurality of groove patterns GP with respect to the resin RR. Thereby, even if the resin RR is disposed on a surface A2 of the stage ST in the step (S300) of coating the resin RR, the resin RR can be in contact with the groove pattern GP having a shape connected to the recessed pattern DPT due to the engagement of the pattern glass PG and the stage ST and the hydrophobicity of the recessed pattern DPT in the step (S400) of forming the preliminary resin layer P-RS.

[0141] The preliminary resin layer P-RS can include a plurality of preliminary filling patterns P-FP and a preliminary flat portion P-TP. The preliminary resin layer P-RS can be spaced apart from the plurality of recessed patterns DPT. The plurality of preliminary filling patterns P-FP can be defined to fill each of the plurality of groove patterns GP in the preliminary resin layer P-RS. The preliminary flat portion P-TP can be disposed directly under the pattern glass PG and the plurality of preliminary filling patterns P-FP.

[0142] Referring to Figure 7 、 Figure 8c and Figure 8d The window manufacturing method according to an embodiment of the present application includes a step (S500) of curing the preliminary resin layer P-RS to form a resin layer RS.

[0143] The resin layer RS can include the plurality of filled patterns FP and the flat portion TP. The step (S500) of forming the resin layer RS includes a step of curing the preliminary resin layer P-RS. The step (S500) of forming the resin layer RS can include a step of curing each of the plurality of preliminary filled patterns P-FP to form the plurality of filled patterns FP and a step of curing the preliminary flat portion P-TP to form the flat portion TP. The step of curing each of the plurality of preliminary filled patterns P-FP to form the plurality of filled patterns FP and the step of curing the preliminary flat portion P-TP to form the flat portion TP can be performed simultaneously by the same process without being performed by separate processes.

[0144] The step (S500) of forming the resin layer RS can include a step of irradiating the ultraviolet light LR onto the patterned glass PG to photocure the preliminary resin layer P-RS. The ultraviolet light LR can pass through the transparent patterned glass PG to reach the preliminary resin layer P-RS. It can be that the preliminary resin layer P-RS includes an ultraviolet light-curable resin, and the resin layer RS is formed as the preliminary resin layer P-RS is UV-cured.

[0145] Referring to Figure 7 and Figure 8e , the window manufacturing method according to an embodiment of the present application includes a step (S600) of separating the stage ST (refer to Figure 8d ) from the patterned glass PG and the resin layer RS.

[0146] It can be that the stage ST (refer to Figure 8d ) is separated from the patterned glass PG and the resin layer RS, and the patterned glass PG and the resin layer RS are included in the window WM (refer to Figure 5b ) according to an embodiment of the present application and the display device DD (refer to Figure 5b ) according to an embodiment of the present application in combination with the aforementioned window protective layer PL (refer to Figure 4 ) or the anti-reflection layer RPL (refer to Figure 4 ) or the like adjacent components.

[0147] Figure 9 is a sectional view showing a part of steps in a window manufacturing method according to another embodiment of the present application. Figure 9 in comparison with Figure 8d to outline another embodiment of the step of curing the preliminary resin layer to form the resin layer.

[0148] in combination with Figure 9 and Figure 7 , Figure 8cThe step (S500) of forming the resin layer RS can include a step of irradiating the ultraviolet light LR-a toward the lower side of the stage ST-a to photocure the preliminary resin layer P-RS. The stage ST-a can have a transmittance of 90% or more with respect to the ultraviolet light LR-a, and the ultraviolet light LR-a can pass through the stage ST-a to reach the preliminary resin layer P-RS. The preliminary resin layer P-RS can include an ultraviolet light-curable resin, and the resin layer RS can be formed as the preliminary resin layer P-RS is UV-cured.

[0149] The window according to an embodiment of the present application can improve reliability by forming a resin layer filled in a pattern glass using a stage defined with a recess pattern. Specifically, the recess pattern defined in the stage has a hydrophobic property, and the resin layer can be antisticking through the recess pattern and filled in a groove pattern defined in the pattern glass. In an embodiment, the recess space formed through the groove pattern can be defined as a plurality, and the resin layer can be completely filled in each of the recess spaces without overcoating or underfilling. When the resin layer is manufactured through a curing process, underfilling or the like can occur due to a curing shrinkage rate, but in the case of the present application, the first flat portion is formed using the stage according to a casting method, so that the resin layer can be completely filled in each of the recess spaces without underfilling. Thus, even though the resin layer is included in the pattern glass, the filling uniformity of the resin layer can be improved to improve the recognition of the window. In addition, the window manufacturing method according to an embodiment of the present application includes a step of using a stage defined with a recess pattern, so that a separate process of compensating for the resin layer with overcoating or underfilling is not included, so that the process efficiency in manufacturing can be relatively improved. The window manufacturing method according to an embodiment of the present application includes a step of using a stage, so that oxygen is not exposed to the resin layer in the process, and a substance in which the resin is oxidized is not included, so that a separate process of removing the oxidized substance or the like is not included, and the process efficiency in manufacturing can be relatively improved.

[0150] The above-described preferred embodiments of the present application have been described with reference to the drawings, it will be understood by those of ordinary skill in the technical field to which the present application pertains, or those who have ordinary knowledge in the technical field, that various modifications and changes can be made thereto without departing from the scope of the concept and technical field of the present application as recited in the appended claims. Therefore, the technical scope of the present application is not limited by the contents described in the detailed description of the specification, but should be defined by the scope of the claims.

Claims

1. A display device comprising a folding area folded in a plane with a virtual folding axis as a center and a non-folding area adjacent to the folding area, wherein the display device comprises: a display panel; and a window configured on the display panel, the window comprises: a patterned glass comprising a patterned portion corresponding to the folding area and a non-patterned portion adjacent to the patterned portion and corresponding to the non-folding area; and a first resin layer configured on the patterned glass, a plurality of first recessed groove patterns are defined on an upper surface of the patterned portion, the first resin layer comprises a plurality of first filling patterns filled in each of the plurality of first recessed groove patterns and a first flat portion directly configured on the plurality of first filling patterns and the patterned portion. 2.The display device according to claim 1, wherein the first resin layer comprises an organic substance, the organic substance comprises at least one of a polyurethane-based resin, an epoxy-based resin, a polyimide-based resin, a polyester-based resin, a polyether-based resin, an acrylate-based resin, and an ABS resin. 3.The display device according to claim 2, wherein the organic substance comprises an ultraviolet-curable resin. 4.The display device according to claim 2, wherein the first resin layer does not comprise a substance in which at least a portion of the organic substance is oxidized. 5.The display device according to claim 1, wherein the first flat portion overlaps the folding area in its entirety. 6.The display device according to claim 1, wherein a thickness of the first flat portion is 0.01 µm or more and 0.2 µm or less. 7.The display device according to claim 1, wherein the virtual folding axis extends in a first direction, the non-folding area comprises a first non-folding area and a second non-folding area spaced apart from each other in a second direction perpendicular to the first direction with the folding area therebetween, the plurality of first recessed groove patterns are arranged spaced apart from each other in the second direction. 8.The display device according to claim 1, wherein the window further comprises: a second resin layer configured below the patterned glass, a plurality of second recessed groove patterns are defined on a lower surface of the patterned portion, the second resin layer comprises a plurality of second filling patterns filled in each of the plurality of second recessed groove patterns and a second flat portion directly configured below the plurality of second filling patterns and the patterned portion. 9.The display device according to claim 1, wherein the window further comprises: a window protection layer configured on the first resin layer. 10.The display device according to claim 1, wherein the display device further comprises: an optical layer configured between the window and the display panel. 11.A window comprising: a patterned glass comprising a patterned portion in which a plurality of first recessed groove patterns are defined on an upper surface and at least a portion of which is folded and a non-patterned portion adjacent to the patterned portion; and a first resin layer configured on the patterned glass, ​ The first resin layer includes a plurality of first filling patterns filled in each of the plurality of first groove patterns and a first flat portion disposed directly on the plurality of first filling patterns and the pattern portion.

12. A window manufacturing method comprising: a step of providing a pattern glass including a pattern portion in which a plurality of groove patterns are defined in a surface and at least a part of which is folded in a plane, and a non-pattern portion adjacent to the pattern portion; a step of providing a plurality of recess patterns corresponding to each of the plurality of groove patterns to a stage having a surface under the pattern glass; a step of applying a resin on the surface of the stage; a step of moving the pattern glass toward the stage to press at least a part of the resin to form a preliminary resin layer; a step of curing the preliminary resin layer to form a resin layer; and a step of separating the stage from the pattern glass and the resin layer.

13. The window manufacturing method according to claim 12, wherein each of the plurality of recess patterns includes a hydrophobic substance.

14. The window manufacturing method according to claim 12, wherein a contact angle of each of the plurality of recess patterns with respect to water is 150 degrees or more and 180 degrees or less.

15. The window manufacturing method according to claim 12, wherein a contact angle of each of the plurality of recess patterns with respect to the resin is greater than a contact angle of each of the plurality of groove patterns with respect to the resin.

16. The window manufacturing method according to claim 12, wherein each of the plurality of recess patterns defines a minute unevenness.

17. The window manufacturing method according to claim 12, wherein the preliminary resin layer includes a plurality of preliminary filling patterns filled in each of the plurality of groove patterns and a preliminary flat portion disposed directly under the plurality of preliminary filling patterns and the pattern portion.

18. The window manufacturing method according to claim 17, wherein the step of curing the preliminary resin layer to form the resin layer includes: a step of curing each of the plurality of preliminary filling patterns to form a plurality of filling patterns; and a step of curing the preliminary flat portion to form a flat portion.

19. The window manufacturing method according to claim 12, wherein the step of curing the preliminary resin layer to form the resin layer includes: a step of irradiating ultraviolet light to the pattern glass to photocure the preliminary resin layer.

20. The window manufacturing method according to claim 12, wherein the step of curing the preliminary resin layer to form the resin layer includes: a step of irradiating ultraviolet light under the stage to photocure the preliminary resin layer, the stage has a transmittance of 90% or more with respect to the ultraviolet light.

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