Window molding apparatus and window molding method using the same

Abstract

A window molding apparatus and a window molding method using the same are provided to provide a window including sub-curved portions having different radii of curvature, the window molding apparatus including an inner molding portion and an outer molding portion, the inner molding portion including a core molding portion having a plurality of sub-bottom surfaces having different radii of curvature and a flat molding portion spaced apart from the plurality of sub-bottom surfaces and disposed on the core molding portion, the outer molding portion being disposed below the inner molding portion with a member to be processed between the inner molding portion and the outer molding portion, and a groove corresponding to the core molding portion being defined in the outer molding portion. The outer molding portion includes a lower surface, an upper surface configured to face away from the lower surface, and a plurality of sub-groove surfaces having different radii of curvature defining the groove.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0145775, filed on November 4, 2020, which is incorporated herein by reference for all purposes, as if fully set forth herein. Technical Field

[0003] The embodiments of the present invention generally relate to a window molding apparatus and a window molding method using the window molding apparatus, and more specifically, to a window molding apparatus and a window molding method for manufacturing a window having a curved portion bent at a large bending angle. Background Technology

[0004] Electronic devices consist of a window, a housing, and electronic components. The electronic components include various elements activated by electrical signals, such as display elements, touch elements, or detection elements. The window protects the electronic components and provides a usable area for the user. Therefore, the user can provide input to the electronic components or receive information generated within them through the window. Furthermore, the window provides stable protection for the electronic components against external impacts.

[0005] Recently, curved or bent display devices that display images on each of the front, back, and side surfaces have been developed, and it is necessary to develop window processing technologies with various shapes that can be used in various types of display devices.

[0006] The information disclosed in this background section is only for understanding the background technology of the inventive concept, and therefore may contain information that does not constitute prior art. Summary of the Invention

[0007] The present invention provides a window molding apparatus for manufacturing a window with a curved portion, wherein the curved portion is bent at a large angle and includes sub-curved portions having different radii of curvature from one another.

[0008] The present invention also provides a window molding method for easily processing windows having curved portions, wherein the curved portions include sub-curved portions having different radii of curvature from one another.

[0009] Other features of the inventive concept will be set forth in the following description and will be apparent in part from the description, or may be learned by practice of the inventive concept.

[0010] An embodiment of the present invention provides a window molding apparatus comprising: an inner molding portion including a core molding portion and a flat molding portion, the core molding portion including a plurality of sub-bottom surfaces with different radii of curvature, the flat molding portion being spaced apart from the plurality of sub-bottom surfaces and disposed on the core molding portion; and an outer molding portion disposed below the inner molding portion, with the component to be processed located between the inner molding portion and the outer molding portion, and the outer molding portion defining a groove corresponding to the core molding portion, wherein the outer molding portion includes a lower surface, an upper surface opposite to the lower surface, and a plurality of sub-groove surfaces with different radii of curvature defining the groove.

[0011] In an implementation, the plurality of sub-bottom surfaces may include a first sub-bottom surface and a second sub-bottom surface, wherein the radius of curvature of the second sub-bottom surface is smaller than the radius of curvature of the first sub-bottom surface, and the plurality of sub-groove surfaces may include a first sub-groove surface corresponding to the first sub-bottom surface and a second sub-groove surface corresponding to the second sub-bottom surface, wherein the radius of curvature of the second sub-groove surface is smaller than the radius of curvature of the first sub-groove surface.

[0012] In one embodiment, the surface of the first sub-groove may be adjacent to the lower surface, and the surface of the second sub-groove may be adjacent to the surface of the first sub-groove and extend from the lower surface toward the upper surface.

[0013] In one embodiment, the radius of curvature of the surface of the first sub-groove can be greater than the radius of curvature of the surface of the first sub-bottom, and the radius of curvature of the surface of the second sub-groove can be greater than the radius of curvature of the surface of the second sub-bottom.

[0014] In one embodiment, the first sub-groove surface may include a flat surface, and the second sub-groove surface may include a curved surface having a first radius of curvature relative to the center of curvature defined within the groove.

[0015] In an implementation, the first sub-bottom surface may include a flat surface, and the second sub-bottom surface may include a curved surface having a second radius of curvature corresponding to the second sub-groove surface.

[0016] In an embodiment, the component to be processed may include a curved portion that is bent relative to a bending axis extending in a first direction, and a first non-bent portion and a second non-bent portion respectively disposed on both sides of the curved portion, with the curved portion between the first non-bent portion and the second non-bent portion. The curved portion may include a first sub-bent portion corresponding to a first sub-groove surface and a first sub-bottom surface, and a second sub-bent portion corresponding to a second sub-groove surface and a second sub-bottom surface.

[0017] In an implementation, the radius of curvature of the second sub-bending portion may be smaller than the radius of curvature of the first sub-bending portion.

[0018] In one embodiment, the first sub-bending portion may include a flat surface, and the second sub-bending portion may include a curved surface having a radius of curvature of about 4 mm or less.

[0019] In one embodiment, with the core molding portion and the component to be processed inserted into the groove, the first non-bent portion and the second non-bent portion can face each other, and the flat molding portion is positioned between the first non-bent portion and the second non-bent portion.

[0020] In one embodiment, in a cross-section perpendicular to the lower surface, the width of the core molding portion in the second direction may be greater than the width of the flat molding portion in the second direction, and the second direction may be a direction perpendicular to the first direction.

[0021] In one embodiment, the component to be processed may include an inner surface adjacent to the inner molding portion and an outer surface configured to face away from the inner surface and adjacent to the outer molding portion, wherein the edge portion of the component to be processed may be bent toward the inner surface.

[0022] In one embodiment, the groove may include: a lower groove portion defined by a first sub-groove surface and a second sub-groove surface; and a plurality of sub-cavities extending from the lower groove portion toward an upper surface, each of the plurality of sub-cavities being defined to have a curved surface.

[0023] In an embodiment, the outer molding section may further include a plurality of movable molds respectively disposed on a plurality of sub-cavities to move along the curved surfaces of the plurality of sub-cavities.

[0024] In one embodiment, in a cross-section perpendicular to the lower surface, each of the plurality of movable molds may include a curved mold portion and a flat mold portion, the curved mold portion having a curved surface corresponding to the curved surface of each of the plurality of sub-cavities, and the flat mold portion being configured to face the curved mold portion.

[0025] In an embodiment, the window molding device may further include a base clamp, with the outer molding part disposed on the base clamp. The base clamp may include a bottom surface and a plurality of side surfaces including a support portion, and the component to be processed is placed on the support portion.

[0026] In an embodiment, at least one of the plurality of side surfaces may be defined with a notch corresponding to the core molding portion.

[0027] In an embodiment of the present invention, the window molding method uses a window molding apparatus comprising: an inner molding portion including a core molding portion and a flat molding portion, the core molding portion including a plurality of sub-bottom surfaces with different radii of curvature, the flat molding portion being spaced apart from the sub-bottom surfaces and disposed on the core molding portion; and an outer molding portion disposed below the inner molding portion, with the component to be processed located between the inner molding portion and the outer molding portion, and the outer molding portion defining a groove corresponding to the core molding portion. In an embodiment, the window molding method includes: placing a component to be processed between an inner molding portion and an outer molding portion; and molding the component to be processed such that the component to be processed includes a curved portion bent along the shape of a groove and the shape of a core molding portion, wherein molding the component to be processed includes: providing heat to the component to be processed; and bending the component to be processed such that the curved portion of the component to be processed includes a first sub-curved portion and a second sub-curved portion having different radii of curvature, and the component to be processed includes a first non-curved portion and a second non-curved portion facing each other, with the curved portion between the first non-curved portion and the second non-curved portion.

[0028] In an embodiment, the plurality of sub-bottom surfaces may include a first sub-bottom surface and a second sub-bottom surface, wherein the radius of curvature of the second sub-bottom surface is smaller than the radius of curvature of the first sub-bottom surface, and the plurality of sub-groove surfaces with different radii of curvature of the defining groove of the outer molding portion may include a first sub-groove surface corresponding to the first sub-bottom surface and a second sub-groove surface corresponding to the second sub-bottom surface, wherein the radius of curvature of the second sub-groove surface is smaller than the radius of curvature of the first sub-groove surface, wherein bending the component to be processed may include: allowing the inner molding portion to move into the groove such that the first sub-bottom surface and the first sub-groove surface correspond to each other, and the component to be processed is between the first sub-bottom surface and the first sub-groove surface, and the second sub-bottom surface and the second sub-groove surface correspond to each other and the component to be processed is between the second sub-bottom surface and the second sub-groove surface.

[0029] In one embodiment, molding the component to be processed may include removing an inner molding portion that has been moved into a groove by means of the front or rear surface of a window molding device, wherein the front or rear surface of the window molding device is perpendicular to the moving direction of the inner molding portion.

[0030] In one embodiment, bending the component to be processed may include molding a bent portion of the component to be processed, such that a first sub-bent portion may include a flat surface, and a second sub-bent portion may include a curved surface having a radius of curvature of about 4 mm or less.

[0031] In one embodiment, the component to be processed may include a glass substrate, and when heat is supplied to the component to be processed, heat may be supplied to at least one of the inner molding portion and the outer molding portion to reduce the viscosity of the component to be processed to about 10. 7 berth to about 109 moor.

[0032] In an embodiment, the window molding method may further include: molding the edge of the component to be processed before setting the component to be processed, such that the component to be processed includes a curved edge portion.

[0033] In an embodiment, the outer molding portion may include a lower surface, an upper surface opposite to the lower surface, and a first sub-groove surface and a second sub-groove surface having different radii of curvature defining a groove. The groove may include: a lower groove portion defined by the first sub-groove surface and the second sub-groove surface having different radii of curvature; and a plurality of sub-cavities extending from the lower groove portion toward the upper surface, each of the plurality of sub-cavities being defined to have a curved surface. The outer molding portion may also include a plurality of movable molds, which are respectively disposed on the plurality of sub-cavities to move along the curved surfaces of the plurality of sub-cavities. Bending the component to be processed may include: allowing the inner molding portion to move such that the core molding portion and the lower groove portion correspond to each other, and the component to be processed is between the core molding portion and the lower groove portion.

[0034] In an embodiment, each of the plurality of movable molds may include a curved mold portion and a flat mold portion. The curved mold portion has a curved surface corresponding to the curved surface of each of the plurality of sub-cavities. The flat mold portion faces the curved mold portion. When setting the component to be processed, the flat mold portions of adjacent movable molds may be arranged adjacent to each other below the component to be processed and parallel to each other. When bending the component to be processed, the flat mold portions of adjacent movable molds may be spaced apart from each other so that they face each other, and the component to be processed is between the flat mold portions of adjacent movable molds.

[0035] In an embodiment, the window molding method may further include: chemically strengthening the component to be processed after molding the component to be processed.

[0036] It should be understood that both the foregoing general description and the following detailed description are illustrative and explanatory, and are intended to provide further explanation of the claimed invention. Attached Figure Description

[0037] The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate illustrative embodiments of the invention and, together with the description, serve to explain the inventive concept.

[0038] Figure 1A This is a perspective view showing an electronic device according to an embodiment;

[0039] Figure 1B This is a perspective view showing an electronic device according to an embodiment;

[0040] Figure 1C This is a perspective view showing an electronic device according to an embodiment;

[0041] Figure 1D This is a cross-sectional view showing the display module according to an embodiment;

[0042] Figure 2 This is a perspective view showing a window according to an embodiment;

[0043] Figure 3A This is a cross-sectional view showing a window according to an embodiment;

[0044] Figure 3B This is a cross-sectional view showing a window according to an embodiment;

[0045] Figure 4A This is a perspective view showing a window according to an embodiment;

[0046] Figure 4B This is a cross-sectional view showing a window according to an embodiment;

[0047] Figure 4C This is a perspective view showing a window according to an embodiment;

[0048] Figure 5A , Figure 5B , Figure 5C and Figure 5D It is a perspective view of the window according to the implementation method;

[0049] Figure 5E It is a perspective view of the window according to the implementation method;

[0050] Figure 6A , Figure 6B and Figure 6C This is a cross-sectional view of the window according to the implementation method;

[0051] Figure 7A This is a cross-sectional view showing a window according to an embodiment;

[0052] Figure 7B This is a cross-sectional view showing a window according to an embodiment;

[0053] Figure 8 This is a perspective view showing a window molding apparatus according to an embodiment;

[0054] Figure 9A This is a perspective view showing a component to be processed using a window molding apparatus according to an embodiment;

[0055] Figure 9B This is a perspective view showing a component to be processed using a window molding apparatus according to an embodiment;

[0056] Figure 10 This is a perspective view showing a portion of a window molding apparatus according to an embodiment;

[0057] Figure 11 This is a cross-sectional view showing a portion of the window molding apparatus according to an embodiment;

[0058] Figure 12 This is a perspective view showing the outer molded part according to the embodiment;

[0059] Figure 13 This is a cross-sectional view showing the outer molded portion according to an embodiment;

[0060] Figure 14 This is a perspective view showing the inner molded part according to an embodiment;

[0061] Figure 15 This is a cross-sectional view showing the inner molded portion according to an embodiment;

[0062] Figure 16 This is a cross-sectional view showing the inner molded portion according to an embodiment;

[0063] Figure 17 This is a perspective view showing a portion of a window molding apparatus according to an embodiment;

[0064] Figure 18 This is a perspective view showing the outer molded part according to the embodiment;

[0065] Figure 19 This is a cross-sectional view showing the outer molded portion according to an embodiment;

[0066] Figure 20 This is a cross-sectional view showing the outer molded portion according to an embodiment;

[0067] Figure 21 This is a flowchart illustrating a window molding method according to an embodiment;

[0068] Figure 22 This is a flowchart illustrating a process of a window molding method according to an embodiment;

[0069] Figure 23 This is a view illustrating a portion of the process of a window molding method according to an embodiment;

[0070] Figure 24 This is a view illustrating a portion of the process of a window molding method according to an embodiment;

[0071] Figure 25 This is a view illustrating a portion of the process of a window molding method according to an embodiment;

[0072] Figure 26This is a view illustrating a portion of the process of a window molding method according to an embodiment;

[0073] Figure 27 This is a view illustrating a portion of the process of a window molding method according to an embodiment;

[0074] Figure 28 This is a view illustrating a portion of the process of a window molding method according to an embodiment; and

[0075] Figure 29 This is a view illustrating a portion of the process of a window molding method according to an embodiment. Detailed Implementation

[0076] In the following description, numerous specific details are set forth for purposes of explanation in order to provide a thorough understanding of various embodiments or implementations of the invention. As used herein, “implementation” and “method” are interchangeable terms and are non-limiting examples of apparatus or methods employing one or more of the inventive concepts disclosed herein. However, it will be apparent, however, that various embodiments may be practiced without these specific details or with one or more equivalent arrangements. In other instances, well-known structures and apparatuses are shown in block diagram form to avoid unnecessarily obscuring the various embodiments. Furthermore, the various embodiments may be different, but not necessarily exclusive. For example, a particular shape, configuration, and characteristic of one embodiment may be used or implemented in another embodiment without departing from the inventive concept.

[0077] Unless otherwise stated, the embodiments shown should be understood as illustrative features providing details of variations in how the inventive concept can be implemented in practice. Therefore, unless otherwise stated, features, components, modules, layers, films, panels, regions, and / or aspects (hereinafter individually or collectively referred to as “elements”) of various embodiments may be combined, separated, interchanged, and / or rearranged in other ways without departing from the inventive concept.

[0078] Crosshairs and / or shading are typically used in the accompanying drawings to clarify the boundaries between adjacent elements. Therefore, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for particular materials, material properties, dimensions, scale, commonalities between illustrated elements, and / or any other characteristics, properties, etc., of the elements, unless otherwise stated. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of elements may be exaggerated for clarity and / or descriptive purposes. When embodiments can be implemented differently, a particular sequence of processes may be performed differently than the sequence described. For example, two consecutively described processes may be performed substantially simultaneously, or in the reverse order of their description. Similarly, the same reference numerals denote the same elements.

[0079] When an element (such as a layer) is referred to as being on, "connected to," or "attached to" another element or layer, it may be directly on, directly connected to, or directly attached to that other element or layer, or there may be an intervening element or layer. However, when an element or layer is referred to as being "directly on," "directly connected to," or "directly attached to" another element or layer, there is no intervening element or layer. Therefore, the term "connection" can refer to a physical connection, electrical connection, and / or fluid connection, with or without an intervening element. Furthermore, the DR1 axis, DR2 axis, and DR3 / DR4 axis are not limited to the three axes of a rectangular coordinate system (such as the x-axis, y-axis, and z-axis) and can be interpreted in a broader sense. For example, the DR1 axis, DR2 axis, and DR3 / DR4 axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. For the purposes of this disclosure, “at least one of X, Y, and Z” and “at least one selected from the group consisting of X, Y, and Z” can be interpreted as X only, Y only, Z only, or any combination of two or more of X, Y, and Z. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0080] While the terms “first,” “second,” etc., may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Therefore, without departing from the teachings of this disclosure, the first element discussed below may be referred to as the second element.

[0081] For descriptive purposes, spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side” (e.g., as in “sidewall”) may be used herein to describe the relationship between one element and another(s) as shown in the accompanying drawings. In addition to the orientations described in the drawings, the spatial relative terms are intended to include different orientations of the device in use, operation, and / or manufacture. For example, if the device in the drawings is flipped, an element described as “below” or “below” other elements or features will be oriented “above” those other elements or features. Thus, the term “below” can include both above and below orientations. Furthermore, the device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and in such cases, the spatial relative descriptive terms used herein should be interpreted accordingly.

[0082] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when used in this specification, the terms “comprises,” “comprising,” “includes,” and / or “including” specify the presence of stated features, integrals, steps, operations, elements, components, and / or groups thereof, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximations, not as terms of degree, and therefore to explain the inherent deviations in measurements, calculations, and / or provided values ​​that will be recognized by those skilled in the art.

[0083] Various embodiments are described herein with reference to sectional views and / or exploded views as schematic illustrations of idealized embodiments and / or intermediate structures. Thus, variations in shape from the illustrations due to, for example, manufacturing techniques and / or tolerances are to be expected. Therefore, the embodiments disclosed herein should not be construed as limited to the specific shapes shown in the figures, but rather include deviations in shape due to, for example, manufacturing processes. In this way, the areas shown in the figures can be schematic in nature, and the shapes of these areas may not reflect the actual shapes of the areas of the device, and are therefore not necessarily limiting.

[0084] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms such as those defined in common dictionaries shall be interpreted as having the meaning consistent with their meaning in the context of the relevant field and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0085] In the following description, a window molding apparatus and a window molding method according to embodiments of the present invention will be described with reference to the accompanying drawings.

[0086] In the following description, embodiments of the inventive concept will be described with reference to the accompanying drawings. Figure 1A and Figure 1B This is a perspective view of an electronic device according to an embodiment. The electronic device ED according to the embodiment may include a plurality of display surfaces IS-1, IS-2, and IS-3. The electronic device ED according to the embodiment can display images on the plurality of display surfaces IS-1, IS-2, and IS-3. Figure 1A and Figure 1BThese are stereoscopic views of the same electronic device ED when viewed on the same attached diagram. Figure 1A This is a perspective view of the electronic device ED as viewed on the third directional axis DR3, and Figure 1B This is a perspective view of the electronic device ED when viewed on the fourth direction axis DR4.

[0087] exist Figure 1A and Figure 1B The accompanying drawings show first direction axes DR1 to fourth direction axes DR4, and the directions indicated by the first direction axis DR1, second direction axis DR2, third direction axis DR3 and fourth direction axis DR4 as described in this specification are relative concepts and can therefore be changed to different directions.

[0088] In this specification, the first direction axis DR1 and the second direction axis DR2 may be perpendicular to each other, and the third direction axis DR3 and the fourth direction axis DR4 may be normal directions relative to the plane defined by the first direction axis DR1 and the second direction axis DR2. The third direction axis DR3 and the fourth direction axis DR4 may extend in opposite directions to each other.

[0089] Furthermore, the X-axis (X), Y-axis (Y), and Z-axis (Z) are shown in the accompanying drawings and this specification. In this specification, for ease of description, the direction of the Z-axis (Z) is defined as upward. Additionally, the X-axis (X) and Y-axis (Y) may be perpendicular to each other, and the direction of the Z-axis (Z) may be the normal direction relative to the plane defined by the X-axis (X) and Y-axis (Y).

[0090] The electronic device ED according to the embodiment can be a device activated by an electrical signal. The electronic device ED can include various examples. For example, the electronic device ED can include a tablet, a laptop, a computer, a smart TV, etc. In this embodiment, an electronic device ED including a smartphone will be described as an example.

[0091] The electronic device ED includes: a first flat region FA-1, including a first display surface IS-1; a second flat region FA-2, including a second display surface IS-2; and a curved region BA, including a third display surface IS-3. The curved region BA may be a portion disposed between the first flat region FA-1 and the second flat region FA-2. The curved region BA may be disposed between the first flat region FA-1 and the second flat region FA-2, and may include multiple portions with different radii of curvature. For example, the curved region BA may include flat portions and curved portions. The curved region BA may have a staple shape (…). (shape), and in this case, the portion bent in the shape of a staple may include a curved portion. The first flat region FA-1 and the second flat region FA-2 may be spaced apart and face each other in the direction of the third directional axis DR3.

[0092] The first display surface IS-1 may include a first display area IS-DA1 and a first peripheral area IS-NA1 adjacent to the first display area IS-DA1. The second display surface IS-2 includes a second display area IS-DA2 and a second peripheral area IS-NA2 adjacent to the second display area IS-DA2, and the third display surface IS-3 may include a third display area IS-DA3 and a third peripheral area IS-NA3 adjacent to the third display area IS-DA3. In this specification, each of the display areas IS-DA1, IS-DA2, and IS-DA3 is defined as an area in which an actual image is displayed, and each of the peripheral areas IS-NA1, IS-NA2, and IS-NA3 is defined as an area in which no image is displayed. Each of the peripheral areas IS-NA1, IS-NA2, and IS-NA3 may be set to various colors by a printing layer. However, the implementation is not limited to this, and at least a portion of the peripheral areas IS-NA1, IS-NA2, and IS-NA3 may be omitted.

[0093] The first display surface IS-1 may be parallel to the plane defined by the first direction axis DR1 and the second direction axis DR2. When viewed in a plane, the first display surface IS-1 may be a flat surface. In this specification, "when viewed in a plane or in a plan view" may mean the case when viewed in the direction of the third direction axis DR3 or the fourth direction axis DR4. The front (or top) surface and rear (or bottom) surface of each of the layers or cells described below are distinguished by the third direction axis DR3. The first display area IS-DA1 of the first display surface IS-1 may provide an image in the direction of the third direction axis DR3.

[0094] Furthermore, in the electronic device ED according to the embodiment, the second display surface IS-2 may be parallel to the plane defined by the first directional axis DR1 and the second directional axis DR2. When viewed on a plane, the second display surface IS-2 may be a flat surface. The second display surface IS-2 may be parallel to the first display surface IS-1. The second display area IS-DA2 of the second display surface IS-2 may provide an image in the direction of the fourth directional axis DR4.

[0095] The third display surface IS-3 may be a portion disposed between the first display surface IS-1 and the second display surface IS-2, and each of the first display surface IS-1 and the second display surface IS-2 may be a portion curved at an angle of approximately 180° relative to the third display surface IS-3. The third display area IS-DA3 of the third display surface IS-3 may provide an image in the direction between the third direction axis DR3 and the fourth direction axis DR4. The first display surface IS-1 and the second display surface IS-2 may be spaced apart from each other in the direction of the third direction axis DR3 or the fourth direction axis DR4, and the third display surface IS-3 is located between the first display surface IS-1 and the second display surface IS-2. The third display surface IS-3 may have an outwardly convex curved shape. However, embodiments of the inventive concept are not limited thereto. The third display surface IS-3 may be a flat surface. Alternatively, unlike this, the curved surface of the third display surface IS-3 may have a semi-elliptical shape in a cross-section parallel to the surface defined by the first direction axis DR1 and the third direction axis DR3, or the third display surface IS-3 may have both a curved surface and a flat surface. The third display surface IS-3 can provide an image in a direction different from the direction in which the first display surface IS-1 and the second display surface IS-2 provide images, and can be configured in various shapes in the form of a curved portion including the first display surface IS-1 and the second display surface IS-2.

[0096] Each of the first display area IS-DA1, the second display area IS-DA2, and the third display area IS-DA3 can display a different image. The images displayed in the first display area IS-DA1, the second display area IS-DA2, and the third display area IS-DA3 can be the same image or different images. Furthermore, the images displayed from each of the first display area IS-DA1, the second display area IS-DA2, and the third display area IS-DA3 can be concatenated to display a single image. Each of the first display area IS-DA1, the second display area IS-DA2, and the third display area IS-DA3 can be controlled independently of each other.

[0097] Figure 1C This is a perspective view showing an electronic device according to an embodiment. Figure 1D This is a cross-sectional view showing a display module included in an electronic device according to an embodiment. Figure 1D It is shown that... Figure 1C A sectional view of the portion corresponding to region AA'.

[0098] refer to Figure 1CThe electronic device ED according to an embodiment may include a display module DM and a window WP disposed on the display module DM. In an embodiment, the window WP may be disposed on the outside of the display module DM. The window WP may cover the entire outside of the display module DM. The window WP may have a shape corresponding to the shape of the display module DM. The display module DM may include flat portions FP1-DP and FP2-DP and a curved portion BP-DP. The curved portion BP-DP may be a portion curved relative to a bending axis BX extending in a direction parallel to the second direction axis DR2. For example, the curved portion BP-DP may include a flat portion and a curved portion. The flat portion of the curved portion BP-DP may be a portion parallel to the plane defined by the second direction axis DR2 and the third direction axis DR3, and the curved portion of the curved portion BP-DP may be a portion connecting the flat portions FP1-DP and FP2-DP and the flat portion of the curved portion BP-DP.

[0099] In this implementation, an adhesive layer AM may be provided between the display module DM and the window WP. The adhesive layer AM may be an optically transparent adhesive layer.

[0100] refer to Figure 1D The display module DM according to an embodiment may include a display panel DP that outputs an image displayed on an electronic device ED. The display panel DP according to an embodiment may include a light-emitting element layer DP-ED, which includes organic light-emitting elements, quantum dot light-emitting elements, micron-LED light-emitting elements, or nano-LED light-emitting elements. The light-emitting element layer DP-ED may be configured to substantially generate an image. Hereinafter, the display panel DP is described as an organic light-emitting display panel, but the embodiment is not limited thereto.

[0101] The display panel DP according to the embodiment may have, for example: Figure 1C The curved shape shown is not limited to this, and the display panel DP can have the same curved shape as the example. Figure 1C The bending states shown are of different types, or the display panel DP is a flexible display panel that can be bent or unfolded. For example, the display panel DP, as a flexible display panel, can be bent to fit into a window WP that is bent at a large bending angle.

[0102] The display panel DP includes a base layer BL, a circuit layer DP-CL disposed on the base layer BL, a light-emitting element layer DP-ED, and an upper insulating layer TFE. The base layer BL may include a plastic substrate, a glass substrate, a metal substrate, or an organic / inorganic composite substrate. For example, the base layer BL may include at least one polyimide layer.

[0103] The circuit layer DP-CL includes semiconductor patterns, conductive patterns, and at least one insulating layer. The insulating layer includes at least one inorganic layer and at least one organic layer. The semiconductor patterns and conductive patterns can form signal lines, pixel driving circuits, and scan driving circuits. For example, the circuit layer DP-CL includes switching transistors and driving transistors configured to drive light-emitting elements ED-1, ED-2, and ED-3 of the light-emitting element layer DP-ED.

[0104] The DP-ED layer includes display elements, such as ED-1, ED-2, and ED-3. The DP-ED layer may also include organic layers, such as pixel-defining layers (PDL). The DM module may include a non-emissive region NPXA and emissive regions PXA-R, PXA-G, and PXA-B. Each of the emissive regions PXA-R, PXA-G, and PXA-B may be a region from which light generated from each of the ED-1, ED-2, and ED-3 is emitted.

[0105] Each of the light-emitting elements ED-1, ED-2 and ED-3 includes a first electrode EL1, a hole transport region HTR, light-emitting layers EML-R, EML-G and EML-B, an electron transport region ETR and a second electrode EL2.

[0106] Figure 1D An embodiment is shown in which the light-emitting layers EML-R, EML-G, and EML-B of light-emitting elements ED-1, ED-2, and ED-3 are disposed in openings OH defined in the pixel-defining layer PDL, and the hole transport region HTR, electron transport region ETR, and second electrode EL2 are configured as a common layer in all light-emitting elements ED-1, ED-2, and ED-3. However, the embodiment is not limited to this, and is related to... Figure 2 In a different embodiment, the hole transport region HTR and the electron transport region ETR can be patterned within the opening OH defined in the pixel definition layer PDL. For example, in an embodiment, the hole transport region HTR, the light-emitting layers EML-R, EML-G, and EML-B, and the electron transport region ETR of the light-emitting elements ED-1, ED-2, and ED-3 can be patterned using an inkjet printing method to form the hole transport region HTR, the light-emitting layers EML-R, EML-G, and EML-B, and the electron transport region ETR of the light-emitting elements ED-1, ED-2, and ED-3.

[0107] In the display panel DP according to the embodiment, multiple light-emitting elements ED-1, ED-2, and ED-3 can emit light in different wavelength regions. For example, in the embodiment, the display panel DP may include a first light-emitting element ED-1 that emits red light, a second light-emitting element ED-2 that emits green light, and a third light-emitting element ED-3 that emits blue light. That is, the red light emitting region PXA-R, the green light emitting region PXA-G, and the blue light emitting region PXA-B of the display module DM can correspond to the first light-emitting element ED-1, the second light-emitting element ED-2, and the third light-emitting element ED-3, respectively.

[0108] However, the implementation is not limited to this, and the first light-emitting element ED-1, the second light-emitting element ED-2, and the third light-emitting element ED-3 can emit light with the same wavelength region, or at least one of the light-emitting elements ED-1, ED-2, and ED-3 can emit light with different wavelength regions. For example, all of the first light-emitting element ED-1, the second light-emitting element ED-2, and the third light-emitting element ED-3 can emit blue light.

[0109] The upper insulating layer TFE may include multiple thin films. Some of the thin films may be configured to improve optical efficiency, and some of the thin films may be configured to protect the light-emitting elements ED-1, ED-2, and ED-3. The upper insulating layer TFE may include a thin film encapsulation layer, which includes a stacked structure of inorganic / organic / inorganic layers.

[0110] The display module (DM) may also include a sensor layer (ISU). The sensor layer (ISU) can be mounted on the display panel (DP). The sensor layer (ISU) can sense external input applied from the outside. External input can be user input. User input can include various types of external input, such as a part of the user's body, light, heat, a pen, pressure, etc.

[0111] The sensor layer ISU can be formed on the upper insulating layer TFE using a continuous process. In this case, it can be expressed as the sensor layer ISU being directly disposed on the upper insulating layer TFE. "Directly disposed" means that no third component is disposed between the sensor layer ISU and the upper insulating layer TFE. That is, no separate adhesive member may be disposed between the sensor layer ISU and the upper insulating layer TFE. However, the implementation is not limited to this, and an adhesive member (not shown) may also be disposed between the sensor layer ISU and the upper insulating layer TFE. In an embodiment, the sensor layer ISU may include a sensing electrode for sensing external input, and the sensing electrode may be made of a transparent metal oxide or the like.

[0112] Figure 2 This is a perspective view showing a window according to an embodiment, and Figure 3A This is a cross-sectional view showing a window according to an embodiment. Figure 3B This is a cross-sectional view showing a portion of a window according to an embodiment. Figure 3A It is shown that... Figure 2 The view of the part corresponding to line II-II', and Figure 3B yes Figure 3A A magnified view of part of BB'.

[0113] According to the implementation method Figures 2 to 3B The window WP shown can be set according to the embodiment. Figures 1A to 1C The electronic device ED shown (see Figure 1A In the context of display modules, the window WP can correspond to the top layer of the electronic device ED. The window WP can be a tempered glass substrate that has undergone tempering treatment. (See also: Display module DM) Figure 1C The inner surface WP-IS of the window WP can be attached, and the outer surface WP-OS of the window WP can be defined as display surfaces IS-1, IS-2, and IS-3 (see...). Figure 1A The window WP may include a reinforced surface to stably protect the display module DM (see...). Figure 1C It is protected from external shocks.

[0114] The window WP according to the embodiment may include a first portion, a second portion, and a third portion disposed between the first portion and the second portion. The third portion may be disposed between the first portion and the second portion and include a curved portion. The third portion may be a portion including a curved surface with different radii of curvature, or it may be a portion including a curved surface and a flat surface.

[0115] In the following description, the third part may be referred to as the curved portion BP, and the first and second parts may be referred to as the first non-curved portion PP-1 and the second non-curved portion PP-2, respectively. The window WP according to an embodiment may include the curved portion BP and the first non-curved portion PP-1 and the second non-curved portion PP-2 respectively disposed on both sides of the curved portion BP. Although not shown in the drawings, the window WP according to an embodiment may also include a printed layer (not shown) disposed at the edge of the inner surface WP-IS or the outer surface WP-OS. For example, the printed layer (not shown) may correspond to the peripheral regions IS-NA1, IS-NA2, and IS-NA3 (see...). Figure 1A and Figure 1B (part of)

[0116] refer to Figures 2 to 3BIn the window WP according to the embodiment, the curved portion BP can be a portion curved relative to a curved axis BX extending in a direction parallel to the second direction axis DR2. In the window WP according to the embodiment, the first non-curved portion PP-1 and the second non-curved portion PP-2 can face each other parallel to each other, and the curved portion BP is disposed between the first non-curved portion PP-1 and the second non-curved portion PP-2. However, the embodiment is not limited to this, and the extending surfaces of the first non-curved portion PP-1 and the second non-curved portion PP-2 can not be parallel to each other. For example, the extending surfaces of the first non-curved portion PP-1 and the second non-curved portion PP-2 can gradually approach or gradually move away from each other along the first direction axis DR1, which is the extending direction.

[0117] The window WP according to the embodiment can be rigid. The window WP according to the embodiment can be fixed in a shape in which the first non-curved portion PP-1 and the second non-curved portion PP-2 face each other and are spaced apart from each other, and the curved portion BP is between the first non-curved portion PP-1 and the second non-curved portion PP-2.

[0118] exist Figure 2 and Figure 3A In this embodiment, the first non-curved portion PP-1 and the second non-curved portion PP-2, which face each other, have the same surface area, but the implementation is not limited to this. The first non-curved portion PP-1 and the second non-curved portion PP-2, in which a curved portion BP is disposed, can have different surface areas. Similarly, in Figure 2 and Figure 3A In the illustration, the shapes of the first non-curved portion PP-1 and the second non-curved portion PP-2 facing each other are shown as symmetrical with respect to the curved portion BP, but the implementation is not limited to this. For example, the shapes of the first non-curved portion PP-1 and the second non-curved portion PP-2 may be different from each other.

[0119] In this specification, the bending angle θ of the bent portion BP can be defined as the angle between point PP-S1 at the beginning of the first non-bent portion PP-1 and point PP-S2 at the beginning of the second non-bent portion PP-2. According to the embodiment... Figure 2 and Figure 3A The bending angle θ in the window WP shown can be approximately 180°.

[0120] The bending angle θ in the window WP manufactured by the window molding apparatus according to an embodiment of the present invention can be greater than about 120°. That is, the window WP according to the embodiment can be bent at a bending angle θ greater than about 120°. Furthermore, the bending angle θ in the window WP according to the embodiment can be greater than about 180°. For example, the bending angle θ can be about 180° or greater, and can be less than the angle within the range where the two non-bent portions PP-1 and PP-2 do not intersect each other.

[0121] In the window WP according to the embodiment, the curved portion BP can be defined as the portion between the starting portion of the first non-curved portion PP-1 and the starting portion of the second non-curved portion PP-2. In the embodiment, the curved portion BP may include a first sub-curved portion S-FP and a second sub-curved portion S-BP. The second sub-curved portion S-BP may be the portion adjacent to the first sub-curved portion S-FP and disposed between the non-curved portions PP-1 and PP-2 and the first sub-curved portion S-FP. Furthermore, the second sub-curved portion S-BP includes a first sub-portion S-BP1 disposed between the first non-curved portion PP-1 and the first sub-curved portion S-FP, and a second sub-portion S-BP2 disposed between the second non-curved portion PP-2 and the first sub-curved portion S-FP, as shown. Figure 3B As shown in part BB'.

[0122] Each of the first sub-bent curved portion S-FP and the second sub-bent curved portion S-BP of the window WP according to the embodiment may be a portion of a circle having a predetermined radius of curvature, or a portion of an ellipse in a cross-section defined by a first directional axis DR1 and a third directional axis DR3. In the embodiment, the first sub-bent curved portion S-FP and the second sub-bent curved portion S-BP may be portions with different radii of curvature. For example, when viewed in a cross-section defined by the first directional axis DR1 and the third directional axis DR3, the curved portion BP of the window WP according to the embodiment may have a shape with variable curvature in which portions with different radii of curvature are connected to each other.

[0123] The radius of curvature R of the first sub-curved section S-FP W1 It can be greater than the radius of curvature R of the second sub-bending section S-BP. W2 For example, relative to the virtual center of curvature R WX The radius of curvature R of the first sub-bent S-FP W1 It can be greater than or equal to about 1 mm and less than or equal to about 10 mm, and the radius of curvature R of the second sub-bending portion S-BP W2It can be about 4 mm or less. In an embodiment, the first sub-bent portion S-FP can be a portion including a flat surface, and the second sub-bent portion S-BP can be at least a portion including a curved surface.

[0124] In the window WP according to the embodiment, the radius of curvature of the first sub-bent portion S-FP is relatively larger than the radius of curvature of the second sub-bent portion S-BP, and therefore, the user touch area of ​​the electronic device ED (see FIG. 1) can be increased at the portion corresponding to the first sub-bent portion S-FP. Furthermore, the second sub-bent portion S-BP can be connected to the non-bent portions PP-1 and PP-2, while providing a curved portion with a radius of curvature relatively smaller than that of the first sub-bent portion S-FP, wherein the first sub-bent portion S-FP is configured to improve the grip properties of the user holding the electronic device ED (see FIG. 1).

[0125] exist Figure 3B In the diagram, although the first sub-part S-BP1 and the second sub-part S-BP2 of the second sub-bent portion S-BP are shown to have the same radius of curvature R, W2 However, the implementation is not limited to this. For example, the first sub-part S-BP1 and the second sub-part S-BP2 may have different radii of curvature from each other.

[0126] exist Figure 2 In the window WP according to the embodiment, the four corner portions ED-P of the window WP are shown as curved, but the embodiment is not limited to this. At least one of the corner portions ED-P of the window WP may have a generally right-angled shape on a plane defined by a first direction axis DR1 and a second direction axis DR2. For example, each of the corner portions ED-P of the window WP may have a radius of curvature of about 0.1 mm to about 15 mm.

[0127] exist Figure 2 In the embodiment shown, the corner portion ED-P of the window WP can be a flat surface parallel to the plane defined by the first direction axis DR1 and the second direction axis DR2. However, the embodiment is not limited to this, and the corner portion ED-P may include a portion that is curved in the direction of the fourth direction axis DR4. Each of the corner portions ED-P may have one curved portion around its perimeter, or it may have two or four curved portions.

[0128] Window WP includes a curved portion BP that bends relative to the bending axis BX, and the curved portion BP may have a radius of curvature such that the radius of curvature of the inner surface WP-IS is smaller than the radius of curvature of the outer surface WP-OS. (Reference) Figure 2The curved portion BP may have the same width as each of the non-curved portions PP-1 and PP-2 in the direction of the second direction axis DR2. However, the implementation is not limited to this, and the width of the curved portion BP may be smaller than the width of each of the non-curved portions PP-1 and PP-2, or the width of the curved portion BP may be larger than the width of each of the non-curved portions PP-1 and PP-2.

[0129] In the following text, Figures 4A to 5E A window according to an embodiment is shown.

[0130] Figure 4A and Figure 4C This is a perspective view showing windows WP-a and WP-a1 bent relative to a bending axis BX-a extending in the direction of a second directional axis DR2, which is the direction of the minor axis of windows WP-a and WP-a1. Figure 4B It is along Figure 4A A sectional view taken along line IV-IV'. (Reference) Figures 4A to 4C According to embodiments, windows WP-a and WP-a1 may include a first non-curved portion PP-1a and a second non-curved portion PP-2a facing each other in the direction of a third directional axis DR3 or a fourth directional axis DR4, and a curved portion BP-a disposed between the first non-curved portion PP-1a and the second non-curved portion PP-2a. In windows WP-a and WP-a1 according to embodiments, the first non-curved portion PP-1a and the second non-curved portion PP-2a may have different surface areas from each other. The second non-curved portion PP-2a may overlap only a portion of the first non-curved portion PP-1a. The surface area of ​​the first non-curved portion PP-1a may be larger than the surface area of ​​the second non-curved portion PP-2a. Figures 4A to 4C In the embodiment, although the second non-curved portion PP-2a is shown as being disposed at the central portion of the first non-curved portion PP-1a, the implementation is not limited thereto. For example, in windows WP-a and WP-a1 according to the embodiment, the second non-curved portion PP-2a may be disposed inclined toward one side of the first non-curved portion PP-1a.

[0131] Unlike the illustrated embodiment, the window according to this embodiment may have a second non-curved portion PP-2a with a shape in which the width of the second non-curved portion PP-2a in the direction of the first direction axis DR1 is the same as the width of the first non-curved portion PP-1a in the direction of the first direction axis DR1, and the width of the second non-curved portion PP-2a in the direction of the second direction axis DR2 is smaller than the width of the first non-curved portion PP-1a in the direction of the second direction axis DR2. Furthermore, in the window according to this embodiment, the second non-curved portion PP-2a may have a shape in which the width of the second non-curved portion PP-2a in the direction of the second direction axis DR2 is the same as the width of the first non-curved portion PP-1a in the direction of the second direction axis DR2, and the width of the second non-curved portion PP-2a in the direction of the first direction axis DR1 is smaller than the width of the first non-curved portion PP-1a in the direction of the first direction axis DR1.

[0132] refer to Figure 4A The width of the curved portion BP-a in the direction of the second direction axis DR2 can be the same as the width of the second non-curved portion PP-2a in the direction of the second direction axis DR2. However, the implementation is not limited to this; the widths of the curved portion BP-a and the second non-curved portion PP-2a in the direction of the second direction axis DR2 can be different from each other. For example, the width of the curved portion BP-a can be smaller than the width of the second non-curved portion PP-2a, or the width of the curved portion BP-a can be larger than the width of the second non-curved portion PP-2a.

[0133] refer to Figure 4B The curved portion BP-a may include a first sub-curved portion S-FP and a second sub-curved portion S-BP, and the radius of curvature of the first sub-curved portion S-FP is greater than the radius of curvature of the second sub-curved portion S-BP.

[0134] Regarding the shape of the curved portion BP-a Figure 4C The window WP-a1 shown may differ from the one described above. Figure 4A and Figure 4B The window WP-a of the embodiment shown. In the window WP-a1 according to the embodiment, the curved portion BP-a may include a portion protruding in a direction opposite to the extending direction of the first direction axis DR1. In the curved portion BP-a of the window WP-a1 according to the embodiment, and Figure 4A The implementation shown differs from the one described above; the radius of curvature of the first sub-bent S-FP can be smaller than the radius of curvature of the second sub-bent S-BP. When compared with... Figure 4A Compared to the window WP-a shown, Figure 4CThe window WP-a1 shown may not include a flat portion in the first sub-curved portion S-FP, or may only include a small flat portion.

[0135] According to the embodiments described herein Figures 2 to 4C In the windows WP, WP-a and WP-a1 shown, the bending axes BX and BX-a are shown as being parallel to each other with the second direction axis DR2, which is the direction of the short side of each of the windows WP, WP-a and WP-a1, but the implementation is not limited to this.

[0136] Figures 5A to 5E A window, according to an embodiment, is shown that is bent relative to a bending axis BX-b parallel to a first direction axis DR1, where the first direction axis DR1 is the direction of the long side.

[0137] refer to Figures 5A to 5E Windows WP-b1, WP-b2, WP-b3, and WP-b4 according to embodiments described herein may include a first non-curved portion PP-1b and a second non-curved portion PP-2b facing each other in the direction of a third directional axis DR3 or a fourth directional axis DR4, and a curved portion BP-b disposed between the first non-curved portion PP-1b and the second non-curved portion PP-2b. In windows WP-b1, WP-b2, WP-b3, and WP-b4 according to embodiments, the first non-curved portion PP-1b and the second non-curved portion PP-2b may have different surface areas from each other. In various embodiments, the second non-curved portion PP-2b may overlap only a portion of the first non-curved portion PP-1b. Furthermore, the surface area of ​​the first non-curved portion PP-1b may be larger than the surface area of ​​the second non-curved portion PP-2b.

[0138] In the window WP-b1 according to the embodiment shown in 5A, the first non-curved portion PP-1b, the second non-curved portion PP-2b, and the curved portion BP-b may have the same width in the direction of the first direction axis DR1. Figure 5B and Figure 5C In the embodiments shown, the width of the second non-curved portion PP-2b in the direction of the first direction axis DR1 may be smaller than the width of each of the first non-curved portion PP-1b and the curved portion BP-b in the direction of the first direction axis DR1. Figure 5B A window WP-b2 according to an embodiment is shown, wherein the second non-curved portion PP-2b is configured to correspond to the central portion of the first non-curved portion PP-1b, and Figure 5C A window WP-b3 according to an embodiment is shown, wherein a second non-curved portion PP-2b is disposed on one side of the first non-curved portion PP-1b. According to... Figure 5DIn the embodiment shown, the window WP-b4 has a first non-curved portion PP-1b, a second non-curved portion PP-2b, and a curved portion BP-b, which may have different widths in the direction of the first directional axis DR1. (See reference...) Figure 5D In the window WP-b4 according to the embodiment, the curved portion BP-b may be provided in a notch shape between the first non-curved portion PP-1b and the second non-curved portion PP-2b so as to have a width smaller than the width of each of the first non-curved portion PP-1b and the second non-curved portion PP-2b in the direction of the first directional axis DR1.

[0139] The second non-curved portion PP-2b may have a double width in the direction of the first direction axis DR1. One of the double widths may be the same as the curved portion BP-b in the direction of the first direction axis DR1. The second width in the double width may be wider than the width of the curved portion BP-b in the direction of the first direction axis DR1.

[0140] When according to Figure 5A Compared to the window WP-b1 in the embodiment shown, according to Figure 5E The window WP-b5 of the illustrated embodiment differs in the shape of the curved portion BP-b. In the window WP-b5 according to the embodiment, the curved portion BP-b may include a portion protruding in the extending direction of the second direction axis DR2. In the window WP-b5 according to the embodiment, when... Figure 5A When comparing the window WP-b1 shown, the curved portion BP-b may not include the flat portion, or may only include a small flat portion in the curved portion BP-b. On the other hand, although not shown, in the reference... Figures 5B to 5D The described window implementation is similar to Figure 5E In one embodiment, the curved portion BP-b may include a portion that protrudes in the extension direction of the second directional axis DR2.

[0141] The shape of the window according to the embodiment is not limited to those shown in this specification, and the ratio of the long side to the short side, the number of sub-bents with different radii of curvature provided in the curved portion, and the relative positions of two non-bent portions facing each other can be changed differently from those shown.

[0142] Figures 6A to 6C This is a cross-sectional view showing a portion of a window according to an embodiment described herein. Figures 6A to 6C It can be shown that... Figure 2 The cross-sectional shape corresponding to line III-III'.

[0143] according to Figures 6A to 6CEach of the windows WP-1, WP-2, and WP-3 in the illustrated embodiments may include a portion curved at its edges. Windows WP-1, WP-2, and WP-3 according to the embodiments described herein have a display module DM (see [link to display module DM]). Figure 1C The windows WP-1, WP-2, and WP-3 according to the embodiments may include a central portion WP-CT and corresponding edge portions WP-ED1, WP-ED2, and WP-ED3. The edge portions WP-ED1, WP-ED2, and WP-ED3 may correspond to the edges of windows WP-1, WP-2, and WP-3, respectively. The edge portions WP-ED1, WP-ED2, and WP-ED3 of windows WP-1, WP-2, and WP-3 according to the embodiments are curved toward the inner surface WP-IS of windows WP-1, WP-2, and WP-3. In this specification, the bending angle of each of the edge portions WP-ED1, WP-ED2 and WP-ED3 may correspond to the angle between the starting portion of each of the edge portions WP-ED1, WP-ED2 and WP-ED3 and the ending portion of each of the edge portions WP-ED1, WP-ED2 and WP-ED3, wherein the starting portion of each of the edge portions WP-ED1, WP-ED2 and WP-ED3 changes to a curved surface with a radius of curvature at the central portion WP-CT, which is a flat surface.

[0144] according to Figure 6A The window WP-1 in the embodiment shown corresponds to the case where the bending angle θ1 of the edge portion WP-ED1 is less than 90 degrees. The edge portion WP-ED1 can be bent at each of the two sides of the central portion WP-CT of the window WP-1.

[0145] Figure 6B The window WP-2 in the embodiment shown corresponds to the case where the bending angle θ2 of the edge portion WP-ED2 is greater than or equal to 90 degrees. The edge portion WP-ED2 can be bent at each of the two sides of the central portion WP-CT of the window WP-2.

[0146] According to Figure 6A and Figure 6B In the embodiments shown, windows WP-1 and WP-2 have inner surfaces WP-IS and outer surfaces WP-OS that can be curved in the same shape. In contrast, according to... Figure 6C In the window WP-3 of the embodiment shown, the inner surface WP-IS in the edge portion WP-ED3 can be a flat surface, and the outer surface WP-OS in the edge portion WP-ED3 can be a curved surface.

[0147] Figure 7A and Figure 7B They are respectively along Figure 4A The cross-sectional view taken by lines IV-IV' and V-V' in window WP-a of the embodiment shown. (See reference) Figure 7A and Figure 7B The edge portion WP-EDa adjacent to the edge of window WP-a can be a portion that curves toward the inner surface WP-IS of window WP-a.

[0148] exist Figure 7A and Figure 7B In the embodiment shown, the entire edge portion WP-EDa of window WP-a may be curved toward the inner surface WP-IS. However, the embodiment is not limited to this, and at least some of the edge portions WP-EDa adjacent to the edge of window WP-a may have different curvature angles relative to the rest, or may be flat surfaces.

[0149] The shape of the window manufactured by the window molding method using the window molding apparatus according to the embodiment is not limited to... Figures 2 to 7B The shape shown. In Figures 2 to 7B The diagram illustrates a case where the bending angle θ of the curved portion is approximately 180°, but the implementation is not limited to this. For example, a window according to an embodiment may include a curved portion bending at a large bending angle of approximately 120° or greater. Here, in addition to the shapes disclosed in this specification, the window may also have various shapes, as long as the non-curved portion is positioned at each of the two sides relative to the curved portion.

[0150] Figure 8 This is a perspective view showing a window molding device according to an embodiment. Figure 9A and Figure 9B This is a perspective view of the component to be processed, which is set in the window molding device according to the embodiment.

[0151] refer to Figure 8 According to the embodiment, the window molding apparatus PE may include an inner molding portion INJ and an outer molding portion OTJ disposed below the inner molding portion INJ, and the component to be processed P-WP (hereinafter referred to as the processing component P-WP) is located between the inner molding portion INJ and the outer molding portion OTJ. Furthermore, the window molding apparatus PE may also include a base fixture BJ, on which the outer molding portion OTJ is mounted.

[0152] The ratios of the dimensions of each component in the window molding apparatus PE according to the embodiments shown in this specification are not limited to the ratios shown. For example, the ratio of the height and width of the base clamp BJ and the outer molding part OTJ, and the ratio of the height of the base clamp BJ and the inner molding part INJ, may be changed differently from the ratios shown.

[0153] Figure 9A and Figure 9B Each of the processing members P-WP and P-WP1 shown corresponds to a preliminary window, which is the window before molding the window to be bent. Each of the processing members P-WP and P-WP1 processed by the window molding apparatus PE according to the embodiment can be a glass substrate. The glass substrate of each of the processing members P-WP and P-WP1 can have a thickness of about 0.1 mm to about 1.0 mm. The window molding apparatus PE according to the embodiment can provide a window WP bent at a bending angle greater than about 120° by processing each of the processing members P-WP and P-WP1 (see Figure 2 ), wherein each of the processed components P-WP and P-WP1 is a glass substrate.

[0154] The processed components P-WP and P-WP1 may include a curved portion BP capable of bending relative to the bending axis BX and non-curved portions PP-1 and PP-2 spaced apart from each other, with the curved portion BP located between the non-curved portions PP-1 and PP-2. Furthermore, in one embodiment, before being disposed in the window molding apparatus PE, the edge portion P-ED of each of the processed components P-WP and P-WP1 may be a portion bent from the side surface of the central portion P-CT. That is, by bending the edge portion P-ED, each of the processed components P-WP and P-WP1 molded using the window molding apparatus PE can be processed into having a three-dimensional shape. The curved portion BP of each of the processed components P-WP and P-WP1 may include a first sub-curved portion S-FP and a second sub-curved portion S-BP, and the first sub-curved portion S-FP and the second sub-curved portion S-BP may be molded to have different radii of curvature.

[0155] Figure 9A A processed component P-WP according to an embodiment is shown, wherein the edge portion P-ED is provided at a uniform height on the curved portion BP and the non-curved portions PP-1 and PP-2, and Figure 9B A processed component P-WP1 according to an embodiment is shown, wherein the edge portion P-ED on the curved portion BP is set at a height smaller than the height of the edge portion P-ED on each of the non-curved portions PP-1 and PP-2.

[0156] exist Figure 9A and Figure 9B In the embodiment, each of the processed members P-WP and P-WP1 may include an edge portion P-ED that is bent from each of the four side surfaces of the central portion P-CT, but the embodiment is not limited thereto. At least one of the plurality of edge portions P-ED of the processed members P-WP and P-WP1 may be disposed on the same plane as the central portion P-CT without being bent.

[0157] Refer again Figure 8 The window molding apparatus PE according to the embodiment may include an inner molding part INJ, a base clamp BJ, and an outer molding part OTJ. The inner molding part INJ can be controlled to operate in the vertical direction. Furthermore, the inner molding part INJ can move towards the front surface or the rear surface. In this specification, control in the vertical direction refers to operation in the upward (upward) or downward (downward) direction relative to the Z-axis Z. Furthermore, movement towards the front surface or the rear surface refers to movement along the Y-axis Y.

[0158] The inner molding part INJ can be controlled to operate in the vertical direction and be inserted into the outer molding part OTJ, and can also move toward the front or rear surface and be removed from the outer molding part OTJ.

[0159] The window molding apparatus PE may include a support platform ST, and a base clamp BJ may be fixed on the support platform ST. The top surface US of the support platform ST on which the base clamp BJ is disposed may be parallel to the plane defined by the X-axis X and the Y-axis Y. The Z-axis Z may indicate the normal direction of the plane defined by the X-axis X and the Y-axis Y.

[0160] Although not shown in the accompanying drawings, the window molding apparatus PE according to the embodiment can be disposed in a cavity (not shown). An inert gas can be supplied to the cavity (not shown). For example, N2 gas can be supplied to the cavity (not shown). Furthermore, window molding can be performed by raising the temperature of the atmosphere inside the cavity (not shown) using the window molding method described below.

[0161] In the window molding apparatus PE according to the embodiment, the processing component P-WP can be supported by the base fixture BJ. The processing component P-WP can be disposed between the inner molding part INJ and the outer molding part OTJ before molding.

[0162] The window molding apparatus PE according to an embodiment may include a heating unit TU. The heating unit TU may be connected to the base clamp BJ to provide heat to the base clamp BJ. Alternatively, in an embodiment, the base clamp BJ may be heated directly. Although not shown, the base clamp BJ may include an induction heating coil (not shown).

[0163] The window molding apparatus PE according to an embodiment may further include a temperature sensor TS. The temperature sensor TS may be spaced apart from the base clamp BJ and may be disposed on one side of the base clamp BJ. However, the embodiment is not limited thereto, and the temperature sensor TS may be disposed adjacent to the base clamp BJ. Alternatively, multiple temperature sensors TS may be disposed around the base clamp BJ.

[0164] Temperature sensor TS can monitor the temperature of base clamp BJ. Although not shown in the figures, temperature sensor TS and heating unit TU can be connected to each other via control unit (not shown), and the temperature of base clamp BJ sensed by temperature sensor TS can be used as an input value, and therefore, control unit (not shown) can control the heat provided by heating unit TU.

[0165] In the window molding apparatus PE according to the embodiment, the inner molding portion INJ can be provided above the processing member P-WP, and the outer molding portion OTJ can be provided below the processing member P-WP. In the window molding apparatus PE according to the embodiment, the inner molding portion INJ can mold the inner surface WP-IS (see...). Figure 2 The outer molding part OTJ can mold the outer surface WP-OS (see...) shape, and the outer molding part OTJ can mold the outer surface WP-OS (see...) Figure 2 The shape of the window WP includes a curved portion BP with sub-curved portions having different radii of curvature (see [reference]). Figure 2 It can be manufactured using a window molding device PE, which includes an inner molding part (INJ) and an outer molding part (OTJ).

[0166] In the window molding apparatus PE according to the embodiment, each of the inner molding portion INJ and the outer molding portion OTJ can be made of graphite. However, the embodiment is not limited to this, and each of the inner molding portion INJ and the outer molding portion OTJ can be not only graphite, but also silicon carbide, silicon nitride, molybdenum disilicide (MoSi2), alumina, aluminum nitride (AlN), zirconium oxide, or tungsten carbide (WC). However, the embodiment is not limited to this, and the outer surfaces of the inner molding portion INJ and the outer molding portion OTJ can be used without restriction, as long as they are materials that can be easily separated from the processing member P-WP after the molding process. Furthermore, the outer surfaces of the inner molding portion INJ and the outer molding portion OTJ can be subjected to a demolding treatment so as not to bond with the processing member P-WP.

[0167] Although not shown in the accompanying drawings, the window molding device PE according to an embodiment may further include an operation controller (not shown) configured to control the vertical operation of the inner molding portion INJ. The operation controller (not shown) may include a fixing part configured to fix the inner molding portion INJ or to fix an operating motor that allows the inner molding portion INJ to move in the vertical direction. The operation controller (not shown) may be disposed on the upper part of the inner molding portion INJ or on the side surface of the inner molding portion INJ, and then connected to the inner molding portion INJ.

[0168] Figure 10 It is shown Figure 8 A perspective view of a portion of the window molding device PE, and Figure 11 It is along Figure 8 A sectional view taken along line VI-VI'. (Reference) Figure 10 and Figure 11 The base fixture BJ may include a bottom surface BS and multiple side surfaces SS. The multiple side surfaces SS may be disposed on the bottom surface BS. The multiple side surfaces SS may be disposed in a bent state from the bottom surface BS; for example, the bottom surface BS and the side surfaces SS may be disposed integrated together.

[0169] In this embodiment, the bottom surface BS may be parallel to the plane defined by the X-axis X and the Y-axis Y, and may have a rectangular shape on this plane. The surface area of ​​the bottom surface BS on the plane may be larger than the surface area of ​​the machined component P-WP on the plane.

[0170] The side surfaces SS can be configured to extend from corresponding sides of the bottom surface BS, which has a rectangular shape. The outer molding part OTJ can be disposed in the inner space ISP defined by the four side surfaces SS and the bottom surface BS, the four side surfaces SS being configured to correspond to the four sides of the bottom surface BS respectively. In addition, the machining member P-WP can be disposed in the inner space ISP of the base fixture BJ.

[0171] Each of the side surfaces SS may include a support portion SP on which a machining member P-WP is mounted. The side surface SS may include a side support surface SS-S and a support portion SP projecting from the side support surface SS-S into an inward space ISP. The machining member P-WP may be mounted and supported on the support portion SP.

[0172] refer to Figure 10 The outer molding part OTJ can be disposed in the inner space ISP of the base fixture BJ. Furthermore, in one embodiment, the outer molding part OTJ can be fixed to the base fixture BJ. However, the embodiment is not limited to this, and the outer molding part OTJ can be configured according to the machining component P-WP (see...). Figure 8 The molded shape can be changed and replaced.

[0173] Each of the side surfaces SS of the base fixture BJ may be provided with a notch NT. The notch NT may be configured to correspond to the portion where the outer molded portion OTJ is provided. The shape of the notch NT may correspond to the inner molded portion INJ described later (see [link to description]). Figure 8 CRP (see core molding part) Figure 14 The shape of the inner molded part INJ is as follows: After molding the component P-WP, the inner molded part INJ can be easily removed by means of the notch NT in each of the side surfaces SS of the base fixture BJ (see...). Figure 8 The width of the notch NT in the X-axis direction can be greater than or equal to that of the core molding portion CRP (see...). Figure 14The width in the X-axis direction. That is, in the window molding apparatus PE according to the embodiment, each of the side surfaces SS of the base fixture BJ can be defined with a notch NT, so that even when the processing member P-WP has a three-dimensional shape that bends from the edge portion P-ED, molding can be easily performed using the inner molding portion INJ and the outer molding portion OTJ, and furthermore, after the molding process, the inner molding portion INJ can be easily removed without being limited by the three-dimensional shape of the molded processing member P-WP.

[0174] In this specification, the outer molding portion OTJ is shown as being disposed at the center of the base fixture BJ, but the embodiment is not limited thereto. In an embodiment, the outer molding portion OTJ may be disposed offset toward one side of the base fixture BJ, and thus the curved portion BP of the machining member P-WP may be altered (see...). Figure 9A The position of ).

[0175] Figure 12 This is a perspective view showing the outer molded part according to an embodiment, and Figure 13 This is a cross-sectional view showing the outer molded part according to an embodiment. Figure 13 It is along Figure 12 A sectional view taken from line VII-VII'.

[0176] The outer molding portion OTJ according to the embodiment may define a groove H-OT, and the outer molding portion OTJ is provided in the window molding device according to the embodiment. The outer molding portion OTJ may include a lower surface BS-OT and an upper surface US-OT opposite to the lower surface BS-OT, and the groove H-OT may be defined as recessed from the upper surface US-OT toward the lower surface BS-OT.

[0177] The groove H-OT can be a portion defined by multiple sub-groove surfaces. The outer molded portion OTJ can include a first sub-groove surface SH-1 and a second sub-groove surface SH-2 defining the groove H-OT. The first sub-groove surface SH-1 can be adjacent to the lower surface BS-OT, and the second sub-groove surface SH-2 can be adjacent to the first sub-groove surface SH-1 and defined as extending from the lower surface BS-OT toward the upper surface US-OT.

[0178] The first sub-groove surface SH-1 and the second sub-groove surface SH-2 can have different radii of curvature. The radius of curvature of each of the sub-groove surfaces can be defined relative to a virtual center of curvature HX defined within the groove H-OT. The radius of curvature R of the second sub-groove surface SH-2... H2 It can be smaller than the radius of curvature R of the first sub-groove surface SH-1. H1For example, the first sub-groove surface SH-1 can be a flat surface, and the second sub-groove surface SH-2 can be a surface with a radius of curvature R relative to the virtual curvature center HX. H2 The curved surface.

[0179] exist Figure 12 and Figure 13 The embodiment shown only illustrates the first sub-groove surface SH-1 and the second sub-groove surface SH-2 with different radii of curvature, but the embodiment is not limited to this. For example, the outer molding portion OTJ may include three or more sub-groove surfaces with different radii of curvature. Similarly, in Figure 12 and Figure 13 In this embodiment, a second sub-groove surface SH-2 having the same radius of curvature is disposed on both sides of a first sub-groove surface SH-1, with the first sub-groove surface SH-1 between the second sub-groove surfaces SH-2. However, the implementation is not limited to this. For example, the second sub-groove surfaces SH-2 disposed on both sides of the first sub-groove surface SH-1 (with the first sub-groove surface SH-1 between the second sub-groove surfaces SH-2) may have different radii of curvature.

[0180] Figure 14 This is a perspective view showing the inner molding portion provided in the window molding apparatus according to an embodiment. Figure 15 It is a cross-sectional view showing a portion of the inner molding section, and Figure 16 This is a cross-sectional view showing the inner molding section provided in the window molding device. Figure 16 It is along Figure 14 A sectional view taken from line VIII-VIII'.

[0181] refer to Figure 14 According to the embodiment, the inner molding portion INJ may include a flat molding portion FP and a core molding portion CRP. The core molding portion CRP may be disposed at one end of the flat molding portion FP. That is, the flat molding portion FP may be disposed on the core molding portion CRP.

[0182] In one embodiment, the flat molding portion FP may be a portion configured to be separate from the core molding portion CRP. For example, the core molding portion CRP may be changed according to the machining shape of the curved portion of the machined member, and therefore may be connected to the flat molding portion FP. Alternatively, the flat molding portion FP may be configured to be integrated with the core molding portion CRP. In this case, the entire flat molding portion FP and the entire core molding portion CRP, which are integrated with each other, can be changed according to the machining shape of the curved portion of the machined member.

[0183] The inner molding part INJ may also include a retaining fixture CLP. The flat molding part FP can be picked up and fixed by the retaining fixture CLP.

[0184] Figure 15 This is a cross-sectional view of the core molding section (CRP). The core molding section (CRP) may include multiple sub-bottom surfaces CR-1 and CR-2 with different radii of curvature. In the inner molding section (INJ), the flat molding section (FP) (see...) Figure 14 It can be set on the core molding part CRP, spaced apart from the sub-bottom surfaces CR-1 and CR-2.

[0185] The core molding portion (CRP) may include a first sub-bottom surface CR-1 and a second sub-bottom surface CR-2 adjacent to the first sub-bottom surface CR-1. The first sub-bottom surface CR-1 and the second sub-bottom surface CR-2 may have different radii of curvature. The radii of curvature of the sub-bottom surfaces CR-1 and CR-2 may be defined relative to a virtual center of curvature CX disposed within the core molding portion (CRP). The radius of curvature R of the second sub-bottom surface CR-2... C2 It can be smaller than the radius of curvature R of the first sub-bottom surface CR-1. C1 For example, the first sub-bottom surface CR-1 can be a flat surface, and the second sub-bottom surface CR-2 can be a surface with a radius of curvature R relative to the virtual center of curvature CX. C2 The curved surface.

[0186] exist Figure 15 The embodiment shown only illustrates a first sub-bottom surface CR-1 and a second sub-bottom surface CR-2 with different radii of curvature, but the embodiment is not limited to this. For example, the core molding portion CRP may include three or more sub-bottom surfaces with different radii of curvature. Furthermore, in Figure 15 In this embodiment, a second sub-bottom surface CR-2 having the same radius of curvature is disposed on both sides of the first sub-bottom surface CR-1, and the first sub-bottom surface CR-1 is between the second sub-bottom surface CR-2, but the implementation is not limited to this. For example, the second sub-bottom surfaces CR-2 disposed on both sides of the first sub-bottom surface CR-1 (and the first sub-bottom surface CR-1 is between the second sub-bottom surface CR-2) may have different radii of curvature.

[0187] refer to Figure 13 and Figure 15 The first sub-bottom surface CR-1 and the second sub-bottom surface CR-2 of the core molding portion CRP can each have a shape corresponding to the first sub-groove surface SH-1 and the second sub-groove surface SH-2 of the outer molding portion OTJ. For example, the first sub-bottom surface CR-1 and its corresponding first sub-groove surface SH-1 can be portions including flat surfaces, and the second sub-bottom surface CR-2 and its corresponding second sub-groove surface SH-2 can be portions including curved surfaces.

[0188] The radius of curvature R of the first sub-bottom surface CR-1 C1 It can be smaller than the radius of curvature R of the first sub-groove surface SH-1.H1 And the radius of curvature R of the second sub-bottom surface CR-2 C2 It can be smaller than the radius of curvature R of the second sub-groove surface SH-2. H2 The radius of curvature R of the first sub-bottom surface CR-1 C1 The radius of curvature R of the first sub-groove surface SH-1 H1 Each of them can be greater than or equal to about 1 mm and less than or equal to about 10 mm, and the radius of curvature R of the second sub-bottom surface CR-2 C2 The radius of curvature R of the second sub-groove surface SH-2 H2 Each of them can be about 4mm or smaller.

[0189] The average roughness of the outer surface of the core-molded CRP that contacts the machined component can be approximately Or smaller. For example, the core molding section CRP may have approximately to approximately The average roughness. In this specification, surface roughness refers to the arithmetic mean roughness. In the window molding apparatus according to the embodiment, the average roughness of the outer surface of the core molding portion CRP that directly contacts the processed component is approximately Or smaller, therefore the inner surface WP-IS (see Figure 2 The surface can have a good average roughness value, in which case no additional polishing process is required.

[0190] Figure 16 This is a cross-sectional view of the inner molded part INJ according to the embodiment. (See reference) Figure 14 and Figure 16 In this embodiment, a through hole TH may be defined in the inner molding portion INJ, and a heating member TC may be provided to be inserted into the through hole TH. The through hole TH may be defined by passing through the flat molding portion FP and extending to the core molding portion CRP. The heating member TC may be provided along the through hole TH within the flat molding portion FP and the core molding portion CRP. Heat can be supplied to the inner molding portion INJ using the heating member TC. For example, the core molding portion CRP may be heated by heat transferred through the heating member TC, and the heated core molding portion CRP may contact the processing member P-WP to transfer heat to the processing member P-WP, thereby molding the curved portion BP (see...). Figure 9A ).

[0191] Unlike the accompanying drawings, the inner molding section INJ may not include the heating element TC. The machining element P-WP can be molded using heat provided by the outer molding section.

[0192] In the embodiment, on a cross-section parallel to the plane defined by the X-axis X and Z-axis Z, the width W2 of the core molding portion CRP in the X-axis direction can be greater than the width W1 of the flat molding portion FP in the X-axis direction. Because the width of the core molding portion CRP of the inner molding portion INJ in the X-axis direction is greater than the width of the flat molding portion FP in the X-axis direction, the curved portion BP (see...) Figure 9A It can be easily molded without interfering with the non-bending portions PP-1 and PP-2 (see...). Figure 9A ).

[0193] Figure 17 This is a perspective view showing a portion of a window molding apparatus according to an embodiment; Figure 17 Only the outer molding portion OTJ-a and the base fixture BJ, excluding the inner molding portion, are shown. In the window molding apparatus PE-a according to the embodiment, the outer molding portion OTJ-a may include a cavity mold CV and a movable mold MJ. The movable mold MJ may be disposed on the cavity mold CV.

[0194] Figure 18 This is a perspective view showing the cavity mold CV disposed in the outer molding section OTJ-a according to an embodiment. (See reference) Figure 18 The cavity mold CV constituting the outer molded part OTJ-a may include a lower surface BS-OT and an upper surface US-OT opposite to the lower surface BS-OT, and a groove H-OT may be defined in the cavity mold CV. The groove H-OT may be defined as recessed from the upper surface US-OT toward the lower surface BS-OT.

[0195] In an embodiment, the recess H-OT may include a lower recess portion BH-OT and a plurality of sub-cavities S-CV1 and S-CV2, each of the plurality of sub-cavities S-CV1 and S-CV2 being defined to extend from the lower recess portion BH-OT toward the upper surface US-OT and having a curved surface. The lower recess portion BH-OT may be defined by a first sub-recess surface SH-1 and a second sub-recess surface SH-2 adjacent to the first sub-recess surface SH-1. For the first sub-recess surface SH-1 and the second sub-recess surface SH-2, references may be applied. Figure 13 External Molding Department (OTJ) (see) Figure 13 The content described is the same as the content described.

[0196] The first sub-groove surface SH-1 and the second sub-groove surface SH-2 defining the lower groove portion BH-OT can have different radii of curvature. The radius of curvature of the second sub-groove surface SH-2 can be smaller than the radius of curvature of the first sub-groove surface SH-1. For example, the first sub-groove surface SH-1 may include a flat surface, and the second sub-groove surface SH-2 may include a curved surface. Multiple subcavities S-CV1 and S-CV2 can be defined in the groove H-OT and can be defined as having a curved surface RS recessed towards the lower surface BS-OT.

[0197] Figure 19 and Figure 20 This is a cross-sectional view showing the outer molded part according to an embodiment. Figure 19 It is along Figure 17 A sectional view taken from line IX-IX'.

[0198] refer to Figure 19 and Figure 20 Movable molds MJ1 and MJ2 can be respectively housed in sub-cavities S-CV1 and S-CV2 to move along the curved surfaces RS of sub-cavities S-CV1 and S-CV2. Furthermore, unlike S-CV1, movable molds MJ1 and MJ2 can be fixed and supported on a separate external fixed shaft (not shown). That is, movable molds MJ1 and MJ2 can rotate according to the rotation of the fixed shaft (not shown).

[0199] Each of the movable molds MJ1 and MJ2 may include a curved mold portion RP and a flat mold portion UFP. The curved mold portion RP may have a curved surface corresponding to the curved surface RS of each of the sub-cavities S-CV1 and S-CV2. The radius of curvature of the curved mold portion RP of each of the movable molds MJ1 and MJ2 may correspond to the radius of curvature of the curved surface RS of each of the sub-cavities S-CV1 and S-CV2. The radius of curvature of the curved mold portion RP may be less than or equal to the radius of curvature of the curved surface RS of each of the sub-cavities S-CV1 and S-CV2.

[0200] The outer molding portion OTJ-a may include a first sub-cavity S-CV1 and a second sub-cavity S-CV2 symmetrically defined relative to the lower recess portion BH-OT. Furthermore, the outer molding portion OTJ-a may include a first movable mold MJ1 disposed in the first sub-cavity S-CV1 and a second movable mold MJ2 disposed in the second sub-cavity S-CV2.

[0201] The movable molds MJ1 and MJ2 can be controlled in operation such that the flat mold part UFP is set in a first state to be parallel to the lower surface BS-OT of the outer mold part OTJ-a, and in a second state to be set to be perpendicular to the lower surface BS-OT of the outer mold part OTJ-a. Figure 19This is a cross-sectional view showing an example of the first state, and Figure 20 This is a cross-sectional view illustrating an example of the second state. Figure 19 and Figure 20 In this example, the processing components will be omitted to illustrate the operation of the window molding device.

[0202] Figure 19 and Figure 20 The window molding apparatus, excluding the processed components, is shown, but... Figure 19 In the first state shown, the processed component can be in the first non-bent portion PP-1 (see... Figure 9A ), the curved portion BP (see Figure 9A ) and the second non-bending part PP-2 (see Figure 9A The first non-bending portion PP-1 (see [reference]) is set on the outer molded part OTJ-a in a flat state. In the following description, in the first state, the first non-bending portion PP-1 (see [reference]) is... Figure 9A ), the curved portion BP (see Figure 9A ) and the second non-bending part PP-2 (see Figure 9A The component P-WP is described as being set in a flat state on the same plane. In the first state, the component P-WP is machined (see...). Figure 9A It can be set to be supported by the flat mold section UFP.

[0203] exist Figure 20 In the second state shown, the component P-WP is machined (see...) Figure 9A A portion of the bending portion BP of the machining component P-WP can be included (see...). Figure 9A It is inserted into the cavity mold CV in a state where it is concavely bent into the lower groove portion BH-OT. In the following, in this specification, the second state is described as the first non-bent portion PP-1 (see...). Figure 9A ) and the second non-bending part PP-2 (see Figure 9A The curved portion BP of the machining component P-WP is bent so that they face each other. The first non-bent portion PP-1 (see...) Figure 9A ) and the second non-bending part PP-2 (see Figure 9A In the second state, the flat mold sections UFP of the movable molds MJ1 and MJ2 facing each other can be set to face each other.

[0204] refer to Figure 19 and Figure 20In the first state, the two movable molds MJ1 and MJ2 can be arranged adjacent to each other, such that the flat mold portion UFP is parallel to the lower surface BS-OT of the outer molded portion OTJ-a. That is, in the first state, the first movable mold MJ1 and the second movable mold MJ2 can be arranged adjacent to each other below the processed member P-WP. In the first state, the flat mold portion UFP of the first movable mold MJ1 and the flat mold portion UFP of the second movable mold MJ2 can be arranged parallel to each other. That is, in the first state, the curved portion BP of the processed member P-WP (see...) Figure 9A It can be configured to overlap with the first movable mold MJ1 and the second movable mold MJ2 that are adjacent to each other.

[0205] Furthermore, in the second state, of the two movable molds MJ1 and MJ2, the flat mold portion UFP can be positioned perpendicular to the lower surface BS-OT of the outer molding portion OTJ-a. That is, in the second state, the first movable mold MJ1 and the second movable mold MJ2 can be moved such that the flat mold portion UFP faces each other, and thus can be positioned on the first sub-cavity S-CV1 and the second sub-cavity S-CV2. In the second state, the first movable mold MJ1 and the second movable mold MJ2 can be spaced apart from each other to face each other, and the first non-bent portion PP-1 (see...) Figure 9A ) and the second non-bending part PP-2 (see Figure 9A Between the first movable mold MJ1 and the second movable mold MJ2. In the second state, the flat mold portion UFP of the first movable mold MJ1 and the flat mold portion UFP of the second movable mold MJ2 can be set perpendicular to the lower surface BS-OT. Furthermore, although not shown, in the second state, the first non-bent portion PP-1 (see [reference]) can face each other. Figure 9A ) and the second non-bending part PP-2 (see Figure 9A An inner molding section INJ is set between (see) Figure 8 ).

[0206] The implementation is not limited to this, and in the second state, the flat mold portions UFP of the movable molds MJ1 and MJ2 can be arranged to face each other, and the machining component P-WP (see...) Figure 9A Between the flat mold portions UFP. Here, each of the flat mold portions UFP may not form an angle of approximately 90 degrees with the lower surface BS-OT of the outer mold portion OTJ-a. In the second state, the inclination angle of the flat mold portions UFP of the two movable molds MJ1 and MJ2 facing each other with respect to the lower surface BS-OT may not be limited to approximately 90 degrees. That is, the flat mold portions UFP of the two movable molds MJ1 and MJ2 facing each other may be held in a position where the flat mold portions UFP are held with respect to the machining component P-WP (see...). Figure 9A The changes occur within a range that are separated from each other and face each other simultaneously.

[0207] Unlike the example shown, in the window molding apparatus according to the embodiment, the outer molding portion OTJ-a may define four or more sub-cavities. Furthermore, in this case, the window molding apparatus according to the embodiment may include four or more movable molds disposed in the four or more sub-cavities of the outer molding portion OTJ-a.

[0208] The window molding apparatus according to an embodiment may include an inner molding portion and an outer molding portion. Here, the inner molding portion may include a core molding portion, the core molding portion including a sub-bottom surface with different radii of curvature, and the outer molding portion may include grooves defined by a plurality of sub-groove surfaces to manufacture a window including sub-bent portions with different radii of curvature on the curved portion. The window molding apparatus according to an embodiment may include an inner molding portion and an outer molding portion to simultaneously bend the inner and outer sides of the window, the inner molding portion including a sub-bottom surface with different radii of curvature, and the outer molding portion including a plurality of sub-groove surfaces. The window molding apparatus can be used to mold windows including curved portions with variable radii of curvature. Furthermore, the window molding apparatus according to an embodiment can be used to manufacture windows bent at an angle of approximately 180° by simultaneously molding the inner and outer surfaces of the window, which has improved dimensional stability and window surface quality. Windows manufactured by the window molding apparatus according to an embodiment may include sub-bent portions with different radii of curvature on the curved portion to provide gripping and tactile properties for the user.

[0209] In the following text, reference will be made to Figures 21 to 26 A window molding method according to an embodiment is described. The window molding method according to an embodiment, which will be described later, can correspond to a window molding method using a window molding apparatus according to the foregoing embodiment. In the following description of the window molding method according to an embodiment, content that is repeated from the description of the window molding apparatus according to the foregoing embodiment will not be described again, and the differences between them will be mainly described.

[0210] Figure 21 This is a flowchart illustrating a window molding method according to an embodiment. Figure 22 This illustrates an embodiment. Figure 21 A flowchart of a window molding method. Figures 23 to 29 A schematic diagram illustrating the process of a window molding method according to an embodiment is shown.

[0211] The window molding method according to the embodiments can be performed using a window molding apparatus according to the above embodiments, which includes an inner molding part and an outer molding part.

[0212] The window molding method (S10) according to the embodiment may include: a process of disposing a processing member between an inner molding portion and an outer molding portion (S300); and a process of molding the processing member such that the processing member includes a curved portion that bends along the curved surface of the groove and the curved surface of the core molding portion (S500). The window molding method (S10) according to the embodiment may further include: a process of molding the edge of the processing member before the process of disposing the processing member between the inner molding portion and the outer molding portion (S300) (S100). The window molding method (S10) according to the embodiment may further include a process of chemically strengthening the processing member (S700).

[0213] Figure 23 This is a schematic diagram illustrating the process (S300) of setting a machining component between the inner molding portion and the outer molding portion. The curved portion BP of the machining component P-WP can be set between the upper surface US-OT of the outer molding portion OTJ and the core molding portion CRP of the inner molding portion INJ. The machining component P-WP can be set in a flat state between the inner molding portion INJ and the outer molding portion OTJ.

[0214] In the window molding method (S10) according to the embodiment, the process of molding the processing component (S500) may include: a process of providing heat to the processing component (S510); and a process of bending the processing component (S530). The process of bending the processing component (S530) may be to bend the processing component P-WP such that the bent portion BP of the processing component P-WP includes a first sub-bent portion S-FP with a different radius of curvature (see...). Figure 9A ) and the second sub-bending section S-BP (see Figure 9A And the processed component P-WP includes the first non-bending portion PP-1 (see...) Figure 9A ) and the second non-bending part PP-2 (see Figure 9A And the curved portion BP is in the first non-curved portion PP-1 (see...) Figure 9A ) and the second non-bending part PP-2 (see Figure 9A The process between ).

[0215] The process of providing heat to the processing component (S510) may include: providing heat to at least one of the inner molding portion and the outer molding portion. The process of providing heat to the processing component (S510) may also include: heating the processing component by providing heat to at least one of the inner molding portion and the outer molding portion. The processing component can be heated to a viscoelastic temperature by the heat provided in the process of providing heat to the processing component (S510). For example, in the process of providing heat to the processing component (S510), the viscosity of the glass substrate can be adjusted to about 10 by the heat provided from at least one of the inner molding portion and the outer molding portion. 7 Parked at approximately 109 The range of the berth is reduced.

[0216] In one embodiment, during the process of providing heat to the processing member (S510), the temperature of the processing member can be heated to about 550°C or higher by heat provided from at least one of the inner molding portion and the outer molding portion. However, embodiments of the present invention are not limited thereto. The processing member, which is a glass substrate, can be thermally molded by a process including the process of providing heat to the processing member (S510).

[0217] Figure 24 and Figure 25 This is a schematic diagram showing a part of the process (S500) for molding a component.

[0218] Figure 24 The intermediate process of the machining component P-WP changing from a first state in a flat state to a second state in a bent state is shown. The inner molding part INJ can move in the downward direction BD, which is the direction toward the outer molding part OTJ, and the core molding part CRP of the inner molding part INJ and the machining component P-WP can be inserted into the groove H-OT of the outer molding part OTJ.

[0219] The inner molding portion INJ can move in the downward direction BD by its own weight. In the embodiment, in addition to its own weight, additional pressure can be applied to the inner molding portion INJ. That is, in the window molding method according to the embodiment, the inner molding portion INJ can move in the downward direction BD by pressure provided from a separate pressing member, so as to bend the processing member P-WP.

[0220] Figure 25 The diagram shows the processed component P-WP bent into a recess H-OT. The inner molded portion INJ and the processed component P-WP can be inserted into the recess H-OT of the outer molded portion OTJ, and the non-bent portions PP-1 and PP-2 can face each other, with the flat molded portion FP of the inner molded portion INJ positioned between the non-bent portions PP-1 and PP-2. Furthermore, the bent portion BP of the processed component P-WP can be molded according to the shape of the core molded portion CRP and the shape of the recess H-OT of the outer molded portion OTJ.

[0221] exist Figure 25 In the embodiment shown, the edge portion P-ED of the processed member P-WP can be bent toward the inner surface. After the edge portion P-ED is bent toward the inner molding portion INJ to mold the processed member P-WP, the inner molding portion INJ can be removed to the front or rear surface of the window molding device, but not to the upper side through which the inner molding portion INJ is inserted.

[0222] Figure 26A portion of the molding process (S500) is schematically shown, and the process of removing the inner molded portion after bending the molded component is also exemplarily shown. (Reference) Figure 26 The inner molding portion INJ can be removed in the forward direction FD of the window molding device. Here, because the width of the notch NT of the base fixture BJ is greater than the width of the inner molding portion INJ, the inner molding portion INJ can be removed through the notch NT.

[0223] Figures 27 to 29 An example is shown by using references Figures 18 to 20 The process of molding a window using the window molding device of the outer molding part OTJ-a is described.

[0224] Figure 27 This is a schematic diagram showing the process (S300) of setting the machining component between the inner molding section and the outer molding section OTJ-a. The machining component P-WP can be set on the movable molds MJ1 and MJ2 of the outer molding section OTJ-a. The machining component P-WP can be set in a flat state between the inner molding section INJ and the outer molding section OTJ-a. During the process of setting the machining component (S100), the flat mold sections UFP of the adjacent movable molds MJ1 and MJ2 can be arranged side by side below the machining component P-WP so that they are adjacent to each other.

[0225] After the processing component P-WP is placed between the inner molding part INJ and the outer molding part OTJ-a, the processing component P-WP can be heated by the heat provided by the core molding part CRP of the inner molding part INJ and the movable molds MJ1 and MJ2 of the outer molding part OTJ-a.

[0226] Figure 28 This is a view schematically showing a portion of the process (S500) of molding a component. Figure 28 This illustrates the intermediate process of changing from the first state to the second state. (Reference) Figure 28 During the molding process (S500), the inner molding part INJ can move in the downward direction BD, which is the direction toward the outer molding part OTJ-a, and the movable molds MJ1 and MJ2 can move in the direction of rotation along the curved surfaces of the sub-cavities S-CV1 and S-CV2.

[0227] The inner molding portion INJ can move in the downward direction BD by its own weight. As the inner molding portion INJ moves, the processing member P-WP can be inserted between two adjacent movable molds MJ1 and MJ2 and then bent. In this embodiment, in addition to its own weight, the inner molding portion INJ can be subjected to additional pressure. That is, in the window molding method according to this embodiment, the inner molding portion INJ can move in the downward direction BD by pressure provided from a separate pressure member, causing the processing member P-WP to bend.

[0228] Figure 29 This is a schematic diagram illustrating the process of bending the processed component (S530). (See reference) Figure 29 During the bending process of the processed component (S530), the inner molding portion INJ can be inserted into the space defined by the movable molds MJ1 and MJ2 and the lower recess portion BH-OT, and the processed component P-WP is located between the inner molding portion INJ and the movable molds MJ1 and MJ2 and the lower recess portion BH-OT. During the bending process of the processed component (S530), the flat mold portions UFP of adjacent movable molds MJ1 and MJ2 can be spaced apart from each other so as to face each other, and the processed component P-WP is located between the flat mold portions UFP of adjacent movable molds MJ1 and MJ2. In addition, the non-bent portions PP-1 and PP-2 of the processed component P-WP (see Figure 9A They can face each other, and the flat molding part FP of the inner molding part INJ is between the non-curved parts PP-1 and PP-2 of the processed component P-WP.

[0229] In such Figure 29 After the process of bending the processed component shown in S530, as... Figure 26 As shown, the inner molding part INJ can be removed to the front or rear surface of the window molding device.

[0230] refer to Figure 21 The window molding method (S10) according to the embodiment may further include a process (S100) for molding the edge of the processing member. The process (S100) for molding the edge of the processing member may be performed before the process (S300) for setting the processing member. The process (S100) for molding the edge of the processing member may be performed on the processing member P-WP (see...). Figure 25 Processed to provide curved edge portions P-ED (see...) Figure 25 The process of molding the edge of the component (S100) can be the process of molding the component P-WP (see...). Figure 25 Heat-processing is performed to provide curved edge portions P-ED (see...) Figure 25 The process of molding the edge of the component (S100) can be used to process the component to provide a reference. Figures 6A to 6C The described edge portion, like a window.

[0231] refer to Figure 21 The window molding method (S10) according to the embodiment may further include a process (S700) for chemically strengthening the component. The process (S700) for chemically strengthening the component may be a chemically strengthened bending component P-WP (see [reference missing]) formed by processing in a strengthened molten salt according to the window molding method of the above embodiment. Figure 25 The process of chemically strengthening the component to be processed (S700) can be carried out in a temperature range of about 400°C to about 500°C, but the implementation is not limited to this.

[0232] Furthermore, the window molding method (S10) according to the embodiment may also include a process of polishing the component to be processed. The process of polishing the component to be processed can be performed after the process of molding the component to be processed (S500). During the process of polishing the component to be processed, only the outer surface of the component can be polished. The outer surface of the window to be polished during the polishing process is WP-OS (see...). Figure 2 It can have approximately to approximately Surface roughness. Furthermore, the inner surfaces of the window that have not undergone polishing (WP-IS, see [link]). Figure 2 It can have approximately Or even smaller surface roughness.

[0233] The window molding method according to the embodiments can be used to manufacture windows including curved portions, which are bent at large bending angles by hot molding using a window molding apparatus, which includes an inner molding portion and an outer molding portion disposed below the inner molding portion. Specifically, the window molding method according to the embodiments can be used to mold windows in which the curved portions have variable curvature, wherein the core molding portion of the inner molding portion and the groove of the outer molding portion include curved surfaces with different radii of curvature. Furthermore, the window molding method according to the embodiments can be used to manufacture windows with good dimensional stability and improved surface quality by simultaneously molding the inner and outer sides of the window using a window molding apparatus including an inner molding portion and an outer molding portion.

[0234] A window manufactured by the window molding apparatus and window molding method according to the embodiments may include a curved portion bent at a large bending angle, and the curved portion may include sub-curved portions with different radii of curvature to achieve improved grip and touch properties.

[0235] The window molding apparatus according to the embodiment may include portions with different radii of curvature at the inner molding portion and the outer molding portion, and a component to be processed is disposed between the inner molding portion and the outer molding portion for manufacturing a window with a curved portion, the curved portion including portions with different radii of curvature.

[0236] A window having a flat portion and a curved portion that bends at a large curvature angle (and the curved portion is disposed between the flat portions) can be manufactured by using a window molding method according to an embodiment.

[0237] While certain implementations and methods have been described herein, other implementations and modifications will be apparent from this description. Therefore, the inventive concept is not limited to such implementations, but rather to the broader scope of the appended claims and various obvious modifications and equivalent arrangements that will be apparent to those skilled in the art.

Claims

1. A window molding device, comprising: An inner molding portion has a core molding portion and a flat molding portion. The core molding portion includes a plurality of sub-bottom surfaces with different radii of curvature. The flat molding portion is spaced apart from the plurality of sub-bottom surfaces and disposed on the core molding portion. An outer molding portion is disposed below the inner molding portion, and the component to be processed is located between the outer molding portion and the inner molding portion, and the outer molding portion defines a groove corresponding to the core molding portion; The outer molded portion includes a lower surface, an upper surface opposite to the lower surface, and a plurality of sub-groove surfaces with different radii of curvature defining the groove. The plurality of sub-bottom surfaces includes a second sub-bottom surface that is bent relative to a bending axis extending along a first direction. Wherein, the width of the core molding portion in the second direction is greater than the width of the flat molding portion in the second direction, and the second direction is perpendicular to the first direction. The component to be processed includes a bent portion and a first non-bent portion and a second non-bent portion respectively disposed on both sides of the bent portion. When the core molding portion and the component to be processed are inserted into the groove, the first non-bent portion and the second non-bent portion face each other, and the flat molding portion is located between the first non-bent portion and the second non-bent portion.

2. The window molding apparatus according to claim 1, wherein, The plurality of sub-bottom surfaces further includes a first sub-bottom surface connected to the second sub-bottom surface, wherein the radius of curvature of the second sub-bottom surface is smaller than the radius of curvature of the first sub-bottom surface. The plurality of sub-groove surfaces include a first sub-groove surface corresponding to the first sub-bottom surface and a second sub-groove surface corresponding to the second sub-bottom surface, and the radius of curvature of the second sub-groove surface is smaller than the radius of curvature of the first sub-groove surface.

3. The window molding apparatus according to claim 2, wherein, The surface of the first sub-groove is adjacent to the lower surface, and The second sub-groove surface is adjacent to the first sub-groove surface and extends from the lower surface toward the upper surface.

4. The window molding apparatus according to claim 2, wherein, The radius of curvature of the surface of the first sub-groove is greater than the radius of curvature of the surface of the first sub-bottom. The radius of curvature of the second sub-groove surface is greater than the radius of curvature of the second sub-bottom surface.

5. The window molding apparatus according to claim 2, wherein, The surface of the first sub-groove includes a flat surface, and The second sub-groove surface includes a curved surface having a first radius of curvature relative to the center of curvature defined within the groove.

6. The window molding apparatus according to claim 5, wherein, The first sub-bottom surface includes a flat surface, and The second sub-bottom surface includes a curved surface with a second radius of curvature corresponding to the second sub-groove surface.

7. The window molding apparatus according to claim 6, wherein, The curved portion bends relative to a bending axis extending in the first direction, and the curved portion lies between the first non-curved portion and the second non-curved portion. The curved portion includes: The first sub-bent portion corresponds to the surface of the first sub-groove and the surface of the first sub-bottom, and The second sub-bent portion corresponds to the second sub-groove surface and the second sub-bottom surface.

8. The window molding apparatus according to claim 7, wherein, The radius of curvature of the second sub-bend is smaller than the radius of curvature of the first sub-bend.

9. The window molding apparatus according to claim 7, wherein, The first sub-bent includes a flat surface, and The second sub-bending portion includes a curved surface with a radius of curvature of 4 mm or less.

10. The window molding apparatus according to claim 1, wherein, The components to be processed include: The inner surface, adjacent to the inner molded portion; and The outer surface is configured to face away from the inner surface and be adjacent to the outer molded portion. The edge portion of the component to be processed is bent toward the inner surface.

11. The window molding apparatus according to claim 2, wherein, The groove includes: The lower groove portion is defined by the surface of the first sub-groove and the surface of the second sub-groove; and Multiple sub-cavities extend from the lower recessed portion toward the upper surface, and each of the multiple sub-cavities is defined to have a curved surface.

12. The window molding apparatus according to claim 11, wherein, The outer molded part also includes: Multiple movable molds are respectively disposed on the multiple sub-cavities to move along the curved surface of the multiple sub-cavities.

13. The window molding apparatus according to claim 12, wherein, In a cross-section perpendicular to the lower surface, each of the plurality of movable molds includes: The curved mold section has a curved surface corresponding to the curved surface of each of the plurality of sub-cavities, and The flat mold section is configured to face the curved mold section.

14. The window molding apparatus according to claim 1, further comprising: A base fixture, wherein the outer molded part is disposed on the base fixture; The base fixture includes a bottom surface and multiple side surfaces, the multiple side surfaces including a support portion, and the component to be processed is placed on the support portion.

15. The window molding apparatus according to claim 14, wherein, At least one of the plurality of side surfaces is defined with a notch corresponding to the core molding portion.

16. A window molding method using a window molding device, wherein, The window molding apparatus includes an inner molding portion and an outer molding portion. The inner molding portion includes a core molding portion and a flat molding portion. The core molding portion includes a plurality of sub-bottom surfaces with different radii of curvature. The flat molding portion is spaced apart from the plurality of sub-bottom surfaces and disposed on the core molding portion. The width of the core molding portion in a first direction is greater than the width of the flat molding portion in the first direction. The outer molding portion is disposed below the inner molding portion, and the component to be processed is located between the outer molding portion and the inner molding portion. The outer molding portion defines a groove corresponding to the core molding portion. The window molding method includes: The component to be processed is disposed between the inner molding portion and the outer molding portion; and The component to be processed is molded such that the component includes a curved portion that bends along the shape of the groove and the shape of the core molding portion. The molding of the component to be processed includes: Provide heat to the component to be processed; and The component to be processed is bent relative to a bending axis extending in a second direction, such that the bent portion of the component to be processed includes a first sub-bending portion and a second sub-bending portion having different radii of curvature, and the component to be processed includes a first non-bending portion and a second non-bending portion facing each other, with the bent portion located between the first non-bending portion and the second non-bending portion, wherein the second direction is perpendicular to the first direction. When bending the component to be processed, the flat molding portion is located between the first non-bent portion and the second non-bent portion.

17. The window molding method according to claim 16, wherein, The plurality of sub-bottom surfaces include: A first sub-base surface and a second sub-base surface, wherein the radius of curvature of the second sub-base surface is smaller than the radius of curvature of the first sub-base surface. The outer molding portion, defining the groove, comprises a plurality of sub-groove surfaces with different radii of curvature, including a first sub-groove surface corresponding to the first sub-bottom surface and a second sub-groove surface corresponding to the second sub-bottom surface, wherein the radius of curvature of the second sub-groove surface is smaller than that of the first sub-groove surface. The bending of the component to be processed includes: allowing the inner molding portion to move into the groove, such that the first sub-bottom surface and the first sub-groove surface correspond to each other and the component to be processed is between the first sub-bottom surface and the first sub-groove surface, and the second sub-bottom surface and the second sub-groove surface correspond to each other and the component to be processed is between the second sub-bottom surface and the second sub-groove surface.

18. The window molding method according to claim 17, wherein, Molding the component to be processed includes: The inner molding portion, which has moved into the groove, is removed by the front or rear surface of the window molding device, wherein the front or rear surface of the window molding device is perpendicular to the moving direction of the inner molding portion.

19. The window molding method according to claim 16, wherein, Bending the component to be processed includes: The curved portion of the component to be processed is molded such that the first sub-curved portion includes a flat surface, and the second sub-curved portion includes a curved surface having a radius of curvature of 4 mm or less.

20. The window molding method according to claim 16, in, The component to be processed includes a glass substrate. Specifically, when providing the heat to the component to be processed, the heat is provided to at least one of the inner molding portion and the outer molding portion to reduce the viscosity of the component to be processed to 10. 7 Park to 10 9 moor.

21. The window molding method according to claim 16, further comprising: Before setting the component to be processed, the edges of the component to be processed are molded such that the component to be processed includes curved edge portions.

22. The window molding method according to claim 16, wherein, The outer molded portion includes a lower surface, an upper surface opposite to the lower surface, and a first sub-groove surface and a second sub-groove surface with different radii of curvature defining the groove. The groove includes: The lower groove portion is defined by the first sub-groove surface and the second sub-groove surface, which have different radii of curvature; and A plurality of sub-cavities extend from the lower recessed portion toward the upper surface, and each of the plurality of sub-cavities is defined to have a curved surface, and The outer molding part further includes a plurality of movable molds, which are respectively disposed on the plurality of sub-cavities to move along the curved surface of the plurality of sub-cavities. The bending of the component to be processed includes: allowing the inner molding portion to move so that the core molding portion and the lower groove portion correspond to each other, and the component to be processed is located between the core molding portion and the lower groove portion.

23. The window molding method according to claim 22, wherein, Each of the plurality of movable molds includes: A curved mold section having a curved surface corresponding to the curved surface of each of the plurality of sub-cavities; and The flat mold section faces the curved mold section. In this configuration, when setting the component to be processed, the flat mold portions of adjacent movable molds are arranged adjacent to each other below the component to be processed and are parallel to each other. In this process, when bending the component to be processed, the flat mold portions of adjacent movable molds are spaced apart from each other to face each other, and the component to be processed is between the flat mold portions of adjacent movable molds.

24. The window molding method according to claim 16, further comprising: After molding the component to be processed, the component is chemically strengthened.

Images