Display panel and display device including the same

Abstract

A display device is provided. According to one embodiment, the display device includes: a display panel including a display area and a non-display area, the display area having at least one corner portion, the non-display area being located in the periphery of the display area; and a cover window arranged on the display panel.

Description

Technical Field

[0001] The invention relates to a display device. Background Art

[0002] Electronic devices that provide images to users, such as smart phones, tablet PCs, digital cameras, laptop computers, navigation devices, and smart TVs, include display devices for displaying images. The display device includes a display panel that generates and displays images and various input devices.

[0003] Among display devices, an organic light emitting display device (OLED) displays images using an organic light emitting element that generates light through recombination of electrons and holes. OLED has a fast response time, high brightness, and a wide viewing angle, and can be driven with low power consumption.

[0004] Meanwhile, a display device generally displays an image only on a front surface portion, but recently, a display device that displays an image also on a side surface portion has been developed. Summary of the invention

[0005] Technical issues

[0006] The present invention is directed to providing a display device capable of reducing a bezel area of ​​a flat portion in a display device that displays an image even from a side surface portion.

[0007] The purpose of the present invention is not limited to the above-mentioned problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description.

[0008] Technical Solution

[0009] A display device according to an exemplary embodiment is used to solve the above problems, and the display device includes: a display panel having at least one corner and including a display area and a non-display area located around the display area; and a cover window provided on the display panel, wherein the display panel is bent with a first bending line extending in a first direction and a second bending line extending in a second direction crossing the first direction, the first bending line and the second bending line crossing each other; the display area includes a first display area, a second display area, and a third display area, the first display area is located in a central portion of the display area, the second display area is located on one side of the first display area in the second direction, and the third display area is located on one side of the first display area in the first direction; the non-display area includes a first non-display area, a second non-display area, and a third non-display area, the first non-display area is located on one side of the second display area in the second direction, the second non-display area is located on one side of the third display area in the first direction, and the third non-display area is located between the first non-display area and the second non-display area, an outer contour of a portion of the first non-display area, an outer contour of a portion of the second non-display area, and an outer contour of the third non-display area form a corner portion of the display panel, and the corner portion is symmetrical with respect to an extension line, and the extension line equally divides an angle formed by the first bending line and the second bending line.

[0010] A first intersection point of the first bending line and the second bending line may be located outside a corner portion of the display panel.

[0011] The outer contour of the first non-display area may include a first-first portion and a first-second portion, the first-first portion having a linear shape and the first-second portion having a curved surface shape, the outer contour of the second non-display area may include a second-first portion and a second-second portion, the second-first portion having a linear shape and the second-second portion having a curved surface shape, and the outer contour of the third non-display area may include a third-first portion having a curved surface shape.

[0012] The first-second portion, the second-second portion, and the third-first portion may form a corner portion.

[0013] A portion of the third-first portion and the first-second portion may form a first sub-corner portion, another portion of the third-first portion and the second-second portion may form a second sub-corner portion, and the first sub-corner portion and the second sub-corner portion may be symmetrical to each other relative to the extension line.

[0014] The first-first portion and the first-second portion may include a second intersection at which the first-first portion and the first-second portion meet each other, the second-first portion and the second-second portion may include a third intersection at which the second-first portion and the second-second portion meet each other, the extension line and the third-first portion may include a fourth intersection at which the extension line and the third-first portion meet each other, and the length from the second intersection to the fourth intersection along the outer contour of the corner portion may be the same as the length from the third intersection to the fourth intersection.

[0015] The first sub corner portion and the second sub corner portion may have a curvature, and the curvatures may be identical to each other.

[0016] A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion may be the same.

[0017] A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion may be different from each other.

[0018] The first sub corner portion and the second sub corner portion may have a plurality of curvatures.

[0019] The cover window may include a window base substrate having a size greater than or equal to that of the display panel in a plan view and a printed layer disposed to overlap first to third non-display areas of the display panel in a thickness direction.

[0020] The display panel includes a flat portion, a first side surface portion, and a second side surface portion, the first side surface portion is bent in the thickness direction from one side of the flat portion in the second direction relative to a first bending line, the second side surface portion is bent in the thickness direction from one side of the flat portion in the first direction relative to the second bending line, the flat portion may include a first display area and a third non-display area, the first side surface portion may include a first non-display area and a second display area arranged between the first non-display area and the first display area, and the second side surface portion may include a second non-display area and a third display area arranged between the second non-display area and the first display area.

[0021] The cover window may have a size larger than that of the display panel in a plan view, and may face first and second side surface portions of the display panel in a region extending further toward the outside than the display panel.

[0022] A display device according to another exemplary embodiment is used to solve the above problem, the display panel includes: at least one corner portion; and a display area and a non-display area, the non-display area being located around the display area, wherein the display panel is bent with a first bending line extending in a first direction and a second bending line extending in a second direction crossing the first direction, the first bending line and the second bending line crossing each other, the display area includes a first display area, a second display area, and a third display area, the first display area is located in a central portion of the display area, the second display area is located on one side of the first display area in the second direction, and the third display area is located on one side of the first display area in the first direction, the non-display area includes a first non-display area, a second non-display area, and a third non-display area, the first non-display area is located on one side of the second display area in the second direction, the second non-display area is located on one side of the third display area in the first direction, and the third non-display area is located between the first non-display area and the second non-display area, an outer contour of a portion of the first non-display area, an outer contour of a portion of the second non-display area, and an outer contour of the third non-display area form a corner portion of the display panel, and the corner portion is symmetrical with respect to an extension line, and the extension line divides the angle formed by the first bending line and the second bending line into equal parts.

[0023] A first intersection point of the first bending line and the second bending line may be located outside a corner portion of the display panel.

[0024] An outer contour of the first non-display area may include a first-first portion and a first-second portion, the first-first portion having a linear shape, and the first-second portion having a curved surface shape, an outer contour of the second non-display area may include a second-first portion and a second-second portion, the second-first portion having a linear shape, and the second-second portion having a curved surface shape, an outer contour of the third non-display area may include a third-first portion having a curved surface shape, and the first-second portion, the second-second portion, and the third-first portion may form a corner portion.

[0025] A portion of the third-first portion and the first-second portion may form a first sub-corner portion, another portion of the third-first portion and the second-second portion may form a second sub-corner portion, and the first sub-corner portion and the second sub-corner portion may be symmetrical to each other relative to the extension line.

[0026] The first sub corner portion and the second sub corner portion may each have a curvature, and the curvatures may be identical to each other.

[0027] A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion may be the same.

[0028] A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion may be different from each other.

[0029] Details of other embodiments are included in the detailed description and accompanying drawings.

[0030] Beneficial Effects

[0031] According to the display device of the exemplary embodiment, in the display device that displays an image also from the side surface portion, the bezel area of ​​the flat portion can be reduced.

[0032] The effects according to the present invention are not limited to the above-exemplified contents, and include more various effects in this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a perspective view of a display device according to an exemplary embodiment.

[0034] Figure 2 is an exploded perspective view of a display device according to an exemplary embodiment.

[0035] Figure 3 is a plan layout diagram of a display panel according to an exemplary embodiment.

[0036] Figure 4 yes Figure 3 Magnified view of area A.

[0037] Figure 5 is a plan view showing that a display panel is bent according to an exemplary embodiment.

[0038] Figure 6 is based on Figure 5 A perspective view of a curved display device.

[0039] Figure 7 is an enlarged partial plan view of a display panel and a window member according to an exemplary embodiment.

[0040] Figure 8 is a cross-sectional view of a display panel and a window member according to an exemplary embodiment.

[0041] Fig. 9 is a cross-sectional view of a display panel and a window member according to another exemplary embodiment.

[0042] Fig.10 is an enlarged partial plan view of a display panel and a window member according to another exemplary embodiment.

[0043] Fig.11 is an enlarged partial plan view of a display panel and a window member according to still another exemplary embodiment.

[0044] Fig.12 is an enlarged partial plan view of a display panel and a window member according to still another exemplary embodiment.

[0045] Fig.13 is an enlarged partial plan view of a display panel and a window member according to still another exemplary embodiment. DETAILED DESCRIPTION

[0046] The advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, which only make the present disclosure complete and provide the common knowledge in the technical field to which the present invention belongs to fully inform the scope of the invention, and the present invention is only limited by the scope of the claims.

[0047] Reference to an element or layer being “on” another element or layer includes any intervening layers or other elements directly on or between the element or layer and the other element or layer. Like reference numerals refer to like elements throughout.

[0048] Although the first, second, etc. are used to describe various elements, these elements are naturally not limited by these terms. These terms are only used to distinguish one element from another element. Therefore, it is natural that the first component mentioned below can be the second component within the spirit of the present invention.

[0049] Hereinafter, specific embodiments will be described with reference to the accompanying drawings.

[0050] Figure 1 is a perspective view of a display device according to an exemplary embodiment, Figure 2 is an exploded perspective view of a display device according to an exemplary embodiment, Figure 3 is a plan layout diagram of a display panel according to an exemplary embodiment, Figure 4 yes Figure 3 A magnified view of area A, Figure 5 is a plan view showing that a display panel is bent according to an exemplary embodiment, Figure 6 is based on Figure 5 A perspective view of a curved display device.

[0051] In the exemplary embodiment, the first direction DR1 and the second direction DR2 indicate directions that intersect each other in different directions (for example, directions that intersect vertically in a plan view). The third direction DR3 indicates a direction that intersects a plane where the first direction DR1 and the second direction DR2 are located (for example, a direction that intersects vertically with both the first direction DR1 and the second direction DR2). In the exemplary drawings, the first direction DR1 indicates a horizontal direction of the display device 1, the second direction DR2 indicates a vertical direction of the display device 1, and the third direction DR3 indicates a thickness direction of the display device 1. In the following exemplary embodiments, one side in the first direction DR1 refers to a right direction in a plan view, the other side in the first direction DR1 refers to a left direction in a plan view, one side in the second direction DR2 refers to an upper direction in a plan view, the other side in the second direction DR2 refers to a lower direction in a plan view, one side in the third direction DR3 refers to an upper direction in a cross-sectional view, and the other side in the third direction DR3 refers to a lower direction in a cross-sectional view. However, the directions mentioned in the exemplary embodiment should be understood as referring to relative directions, and the exemplary embodiments are not limited to the mentioned directions.

[0052] Reference Figures 1 to 6 , the display device 1 displays a moving image or a still image. The display direction of the main screen may be one side in the third direction DR3 (for example, a top emission type display device), but may be the other side in the third direction DR3 (for example, a bottom emission type display device), or may be both one side and the other side in the third direction DR3 (for example, a double-sided emission type display device or a transparent display device).

[0053] The display device 1 may refer to any electronic device that provides a display screen. For example, the display device 1 may include a television, a laptop computer, a monitor, a billboard, an IoT device, etc. that provide a display screen, and portable electronic devices such as a mobile phone, a smart phone, a tablet PC (personal computer), an electronic watch, a smart watch, a watch phone, a mobile communication terminal, an electronic organizer, an e-book reader, a portable multimedia player (PMP), a navigation device, a game console, and a digital camera.

[0054] The display device 1 may include a display area DA that displays an image and a non-display area NA that is located around the display area DA and does not display an image. The non-display area NA may be a frame area. The non-display area NA may overlap with a printed layer 330 of a window member 300 to be described later.

[0055] The planar shape of the display area DA may be a rectangle with rounded corners. The planar shape of the exemplary display area DA may be a rectangle whose sides in the first direction DR1 are longer than those in the second direction DR2. However, the present invention is not limited thereto, and the display area DA may have various shapes such as a rectangular shape, a square shape, other polygonal shapes, a circular shape, and an elliptical shape in which the sides in the second direction DR2 are longer than those in the first direction DR1.

[0056] The non-display area NA may be located around the display area DA. When a rectangle with rounded corners is applied as the plane shape of the display area DA, the non-display area NA may be located around two short sides and two long sides of the display area DA. That is, the non-display area NA may have a plane shape (e.g., a rectangular frame shape with rounded corners) that completely surrounds the display area DA in a plan view.

[0057] Meanwhile, the display device 1 may include a flat portion located on a plane and a side surface portion located on a side surface of the flat portion. The side surface portion may be located on a plane different from the flat portion. The flat portion of the display device 1 may face a side in a third direction DR3, and the side surface portion may face a lateral direction intersecting a direction in which the flat portion is viewed. When the planar shape of the display device 1 is a rounded rectangle, the display device 1 may include four side surface portions. Each of the side surface portions may be located on a plane different from the other side surface portions. Each of the side surface portions may form a right angle with the flat portion, but the present invention is not limited thereto, and each of the side surface portions may form an acute angle or an obtuse angle with the flat portion.

[0058] The display area DA of the display device 1 may be mainly located on the flat portion, some of the display area DA may be located on the side surface portion, and the non-display area NA may be mainly located on the side surface portion of the display device 1, and some of the non-display area NA may be located on the flat portion. That is, the display area DA disposed on the side surface portion may be connected to the display area DA disposed on the flat portion at each side surface portion, the non-display area NA disposed on the side surface portion may be disposed to be spaced apart from the display area DA disposed on the flat portion, and the display area DA disposed on the side surface portion is placed between the non-display area NA disposed on the side surface portion and the display area DA disposed on the flat portion. However, as Figure 1 As shown in , in a plan view, the non-display area NA located on the flat portion may be connected to the non-display area NA in the side surface portion of the corner portion of the display device 1 .

[0059] Reference Figure 2The display device 1 may include a display panel 100 providing a display screen and a window member 300 disposed above the display panel 100 to cover and protect the display panel 100 .

[0060] As examples of the display panel 100, an organic light emitting display panel, a micro LED display panel, a nano LED display panel, a quantum dot light emitting display panel, a liquid crystal display panel, a plasma display panel, a field emission display panel, an electrophoretic display panel, and an electrowetting display panel may be mentioned. Hereinafter, a case where an organic light emitting display panel is applied as an example of the display panel 100 is illustrated, but the present invention is not limited thereto, and other display panels may also be applied when the same technical spirit is applicable.

[0061] The display panel 100 may include a plurality of pixels. Each pixel may include a light emitting layer and a circuit layer that controls the amount of light emitted from the light emitting layer. The circuit layer may include a display line, a display electrode, and at least one transistor. The light emitting layer may include an organic light emitting material. The light emitting layer may be sealed by an encapsulation film. The encapsulation film may seal the light emitting layer to prevent moisture, etc. from entering from the outside. The encapsulation film may be formed of a single-layer inorganic film or a multi-layer inorganic film, or of a stacked film in which an inorganic film and an organic film are alternately stacked.

[0062] The display panel 100 may include a flexible substrate including a flexible polymer material such as polyimide. Therefore, the display panel 100 is bendable, foldable, or rollable.

[0063] The window member 300 may include a window base substrate 310 and a printed layer 330 disposed on the window base substrate 310 .

[0064] The window base substrate 310 may be made of a transparent material. The window base substrate 310 may be made of, for example, glass or plastic. When the window base substrate 310 includes plastic, the window base substrate 310 may have a flexible property.

[0065] As examples of plastics applicable to the window base substrate 310, although the present invention is not limited thereto, polyimide, polyacrylate, polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene naphthalate (PEN), polyvinylidene chloride, polyvinylidene fluoride (PVDF), polystyrene, ethylene vinyl alcohol copolymer, polyether sulfone (PES), polyetherimide (PEI), polyphenylene sulfide (PPS), polyarylate triacetyl cellulose (TAC) and cellulose acetate propionate (CAP) can be mentioned. The plastic window may include one or more of the plastic materials listed above. When the window base substrate 310 includes plastic, the window base substrate 310 may further include a coating (not shown) disposed on the upper and lower surfaces of the plastic. In an exemplary embodiment, the coating may be a hard coating layer including an organic layer and / or an organic-inorganic composite layer containing an acrylate compound.

[0066] The planar shape of the window base substrate 310 corresponds to the shape of the applied display device 1. For example, when the display device 1 has a substantially rectangular shape in a plan view, the window base substrate 310 also has a substantially rectangular shape. As another example, when the display device 1 has a circular shape, the window base substrate 310 also has a circular shape.

[0067] Figure 8 is a cross-sectional view of a display panel and a window member according to an exemplary embodiment.

[0068] Reference Figure 8 , the window base substrate 310 and the display panel 100 have the same planar shape in a plan view, and may be arranged to overlap each other in the third direction DR3. In this case, similar to the display panel 100, the window base substrate 310 may include a flat portion and a side surface portion located on a plane different from the flat portion. The flat portion of the window base substrate 310 may face the flat portion of the display panel 100, and the side surface portions of the window base substrate 310 may face the side surface portions of the display panel 100, respectively.

[0069] Fig. 9 is a cross-sectional view of a display panel and a window member according to another exemplary embodiment.

[0070] Reference Fig. 9, the window base substrate 310 of the window member 300a according to another exemplary embodiment may be larger than the display panel 100 in a plan view, and its side surface may protrude from the side surface of the display panel 100. In this case, the window base substrate 310 may protrude outward from all sides (four sides in the figure) of the display panel 100. Even in this case, similar to the display panel 100, the window base substrate 310 may include a flat portion and a side surface portion located on a plane different from the flat portion. The flat portion of the window base substrate 310 may face the flat portion of the display panel 100, and the side surface portions of the window base substrate 310 may face the side surface portions of the display panel 100, respectively.

[0071] Refer again Figure 2 , the printing layer 330 may be disposed on the window base substrate 310. The printing layer 330 may be disposed on one side and / or the other side of the window base substrate 310. The printing layer 330 may be disposed on an edge portion of the window base substrate 310 and may be disposed in the non-display area NA. The printing layer 330 may be a decorative layer imparting beauty and / or an outermost black matrix layer.

[0072] Another panel such as a touch panel or an optical film such as a polarizing film may be interposed between the display panel 100 and the window member 300. Since various structures or manufacturing methods related thereto are widely known in the art, a detailed description will be omitted.

[0073] Reference Figure 3 , the display panel 100 may include a plurality of pixels PX. The plurality of pixels PX may be arranged in a matrix form. In a plan view, the shape of each pixel PX may be a rectangle or a square, but the present invention is not limited thereto, and the shape may also be a rhombus shape in which each side is inclined relative to the first direction DR1. Each pixel PX may include a light-emitting area. Each light-emitting area may have the same shape as the pixel PX, but may also have a shape different from that of the pixel. For example, when the shape of the pixel PX is a rectangle, the shape of the light-emitting area of ​​the corresponding pixel PX may be various shapes such as a rectangle, a rhombus, a hexagon, an octagon, and a circle.

[0074] The display panel 100 may be formed into a curved surface by bending its edge relative to the plurality of bending lines BL1 to BL4, or may be bent in a vertical direction. The first bending line BL1 may be located at the other side of the display panel 100 in the first direction DR1 to extend in the second direction DR2, the second bending line BL2 may be located at one side of the display panel 100 in the first direction DR1 to extend in the second direction DR2, the third bending line BL3 may be located at one side of the display panel 100 in the second direction DR2 to extend in the first direction DR1, and the fourth bending line BL4 may be located at the other side of the display panel 100 in the second direction DR2 to extend in the first direction DR1. The first bending line BL1 and the second bending line BL2 may extend in parallel with each other, and the third bending line BL3 and the fourth bending line BL4 may extend in parallel with each other. The first bending line BL1 and the second bending line BL2 may cross the third bending line BL3 and the fourth bending line BL4, respectively. For example, the first bending line BL1 and the second bending line BL2 may extend perpendicularly to the third bending line BL3 and the fourth bending line BL4, respectively, but the present invention is not limited thereto.

[0075] The bending lines BL1 to BL4 may extend across both the display area DA and the non-display area NA of the display device 1. Therefore, not only the non-display area NA but also at least a portion of the display area DA may be disposed on a side surface portion of the display device 1.

[0076] The bending lines BL1 to BL4 form bending intersections with other bending lines crossing each other. The bending intersections DBP1 to DBP4 may be located outside the display panel 100. For example, the first bending line BL1 and the third bending line BL3 may form the first bending intersection DBP1 outside the corner portion of the display panel 100 on the other side in the first direction DR1 and one side in the second direction DR2, the second bending line BL2 and the third bending line BL3 may form the second bending intersection DBP2 outside the corner portion of the display panel 100 on one side in the first direction DR1 and one side in the second direction DR2, the first bending line BL1 and the fourth bending line BL4 may form the third bending intersection DBP3 outside the corner portion of the display panel 100 on the other side in the first direction DR1 and the other side in the second direction DR2, and the second bending line BL2 and the fourth bending line BL4 may form the fourth bending intersection DBP4 outside the corner portion of the display panel 100 on one side in the first direction DR1 and the other side in the second direction DR2.

[0077] The bending intersections DBP1 to DBP4 are located outside the display panel 100, so double bending at the corner portion of the display panel 100 due to the intersecting bending lines BL1 to BL4 when the display panel 100 is bent at the bending lines BL1 to BL4 can be prevented. Therefore, increase in bending stress due to the double bending can be prevented in advance.

[0078] The display area DA and the non-display area NA may be divided into a plurality of areas with respect to the bending lines BL1 to BL4. The display area DA may include first to fifth display areas DA1 to DA5 divided by the bending lines BL1 to BL4, and the non-display area NA may include first to eighth non-display areas NA1 to NA8 divided by the bending lines BL1 to BL4.

[0079] The first display area DA1 may be surrounded by the bending lines BL1 to BL4 and may be located in the central portion of the display panel 100. The first display area DA1 may be located on the right side of the first bending line BL1, on the left side of the second bending line BL2, on the lower side of the third bending line BL3, and on the upper side of the fourth bending line BL4. The second display area DA2 may be located on the left side of the first bending line BL1 and may be physically connected to the first display area DA1 with the first bending line BL1 as a boundary. The third display area DA3 may be located on the right side of the second bending line BL2 and may be physically connected to the first display area DA1 with the second bending line BL2 as a boundary. The fourth display area DA4 may be located on the upper side of the third bending line BL3 and may be physically connected to the first display area DA1 with the third bending line BL3 as a boundary. The fifth display area DA5 may be located on the lower side of the fourth bending line BL4 and may be physically connected to the first display area DA1 with the fourth bending line BL4 as a boundary.

[0080] The first non-display area NA1 may be located on the other side of the second display area DA2 in the first direction DR1, and may be positioned to be spaced apart from the first display area DA1 with the second display area DA2 placed between the first display area DA1 and the first non-display area NA1, the second non-display area NA2 may be located on one side of the third display area DA3 in the first direction DR1, and may be positioned to be spaced apart from the first display area DA1 with the third display area DA3 placed between the first display area DA1 and the second non-display area NA2, the third non-display area NA3 may be located on one side of the fourth display area DA4 in the second direction DR2, and may be positioned to be spaced apart from the first display area DA1 with the fourth display area DA4 placed between the first display area DA1 and the third non-display area NA3, the fourth non-display area NA4 may be located on the other side of the fifth display area DA5 in the second direction DR2, and may be positioned to be spaced apart from the first display area DA1 with the fifth display area DA5 placed between the first display area DA1 and the fourth non-display area NA4.

[0081] The fifth non-display area NA5 may be disposed between the first non-display area NA1 and the third non-display area NA3 to physically connect the first non-display area NA1 and the third non-display area NA3, and may be located on one side of the first bending line BL1 in the first direction DR1 and on the other side of the third bending line BL3 in the second direction DR2 to be surrounded by the first bending line BL1, the third bending line BL3 and the first display area DA1 of the display panel 100.

[0082] The sixth non-display area NA6 may be disposed between the second non-display area NA2 and the third non-display area NA3 to physically connect the second non-display area NA2 and the third non-display area NA3, and may be located on the other side of the second bending line BL2 in the first direction DR1 and on the other side of the third bending line BL3 in the second direction DR2 to be surrounded by the second bending line BL2, the third bending line BL3 and the first display area DA1 of the display panel 100.

[0083] The seventh non-display area NA7 may be disposed between the first non-display area NA1 and the fourth non-display area NA4 to physically connect the first non-display area NA1 and the fourth non-display area NA4, and may be located on one side of the first bending line BL1 in the first direction DR1 and on one side of the fourth bending line BL4 in the second direction DR2 to be surrounded by the first bending line BL1, the fourth bending line BL4 and the first display area DA1 of the display panel 100.

[0084] The eighth non-display area NA8 is disposed between the second non-display area NA2 and the fourth non-display area NA4 so that the second non-display area NA2 and the fourth non-display area NA4 are physically connected, and is located on the other side of the second bending line BL2 in the first direction DR1 and on one side of the fourth bending line BL4 in the second direction DR2 so as to be surrounded by the second bending line BL2, the fourth bending line BL4 and the first display area DA1 of the display panel 100.

[0085] Although not shown in the drawings, a pad (or "pad") area to which an external signal is input may also be provided on the lower short side of the display panel 100. The pad area may be located more on the other side in the second direction DR2 than the non-display area NA located on the lower short side of the display panel 100. Signal lines extending from the display area DA are provided in the pad area, and the signal lines may be electrically connected to external signal terminals (for example, leads of a printed circuit board when a chip on film is applied, or bumps of a driving chip when a chip on plastic is applied). Other bending lines may also be positioned between the pad area and the fourth non-display area NA4. The other bending lines may extend in the first direction DR1. In the area defined by the other bending lines, the inorganic insulating layer of the display panel 100 to be described later may be removed, and a via layer including an organic material may be provided.

[0086] Reference Figure 4 , the printed layer 330 of the window member 300 is disposed to overlap the non-display area of ​​the display panel 100. Figure 4 In the description, for convenience of description, the description will be focused on the corner portions of the other side in the first direction DR1 and one side in the second direction DR2 of the display panel 100. The description described later can be applied to other corner portions of the display panel 100 without change.

[0087] The printed layer 330 may include an outer contour 330a adjacent to the outer contour of the display panel 100 and an inner contour 330b adjacent to the display areas DA1, DA2, and DA4 of the display panel 100. The outer contour 330a may overlap the outer contour of the display panel 100 in the thickness direction, and the inner contour 330b may overlap the boundaries between the display areas DA1, DA2, and DA4 and the non-display areas NA1, NA3, and NA5 in the thickness direction.

[0088] The outer contour 330a of the printing layer 330 may include a first-first portion 330a1 overlapping the outer contour of the first non-display area NA1 and extending in the second direction DR2, a first-second portion 330a2 overlapping the outer contour of the third non-display area NA3 and extending in the first direction DR1, and a first-third portion 330a3 connecting the first-first portion 330a1 and the first-second portion 330a2 to each other and overlapping the outer contour of the fifth non-display area NA5.

[0089] The inner contour 330b of the printing layer 330 may include a second-first portion 330b1 overlapping the inner contour of the first non-display area NA1 and extending in the second direction DR2, a second-second portion 330b2 overlapping the inner contour of the third non-display area NA3 and extending in the first direction DR1, and a second-third portion 330b3 connecting the second-first portion 330b1 and the second-second portion 330b2 to each other and overlapping the inner contour of the fifth non-display area NA5.

[0090] The first-first portion 330a1 and the second-first portion 330b1 of the printed layer 330 may each have a linear shape extending in the second direction DR2, and the first-second portion 330a2 and the second-second portion 330b2 may each have a linear shape extending in the first direction DR1.

[0091] On the other hand, the first-third portion 330a3 and the second-third portion 330b3 of the printing layer 330 may each have a partially curved surface shape having a predetermined curvature. The predetermined curvatures of the first-third portion 330a3 and the second-third portion 330b3 of the printing layer 330 may be different from each other, but the present invention is not limited thereto, and the same curvature may be applied thereto.

[0092] The first-third portion 330a3 and the second-third portion 330b3 of the printing layer 330 may each have one curvature, but the present invention is not limited thereto, and the first-third portion 330a3 and the second-third portion 330b3 may also have a plurality of curvatures.

[0093] Reference Figure 5 and Figure 6, in the display panel 100, the edge of the display panel 100 may be bent or folded due to the first bending line BL1 and the third bending line BL3. That is, the first non-display area NA1 and the second display area DA2 may be bent toward the other side in the third direction DR3 by the first bending line BL1 to form a first side surface, and the third non-display area NA3 and the fourth display area DA4 may be bent toward the other side in the third direction DR3 by the third bending line BL3 to form a third side surface. On the other hand, the fifth non-display area NA5 may form a flat portion of the display panel 100.

[0094] like Figure 6 As shown in , the display panel 100 may further include a ninth non-display area NA9. The ninth non-display area NA9 may be an area in which the display panel 100 is not disposed when the display panel 100 is bent, and may be a bezel area similar to the first to eighth non-display areas NA1 to NA8.

[0095] Figure 7 is an enlarged partial plan view of a display panel and a window member according to an exemplary embodiment.

[0096] Reference Figure 7 The non-display area of ​​the display panel 100 may include an outer contour and an inner contour aligned with and / or overlapped with the outer contour 330 a and the inner contour 330 b of the above-mentioned printing layer 330 in the thickness direction.

[0097] That is, the first non-display area NA1, the third non-display area NA3 and the fifth non-display area NA5 can all have external contours aligned with the external contour 330a of the printing layer 330, and the first non-display area NA1, the third non-display area NA3 and the fifth non-display area NA5 can all have internal contours aligned with the internal contour 330b of the printing layer 330.

[0098] The outer contour of the first non-display area NA1 may include a first-fourth portion and a first-fifth portion aligned with the first-first portion 330a1, the outer contour of the third non-display area NA3 may include a second-fourth portion and a second-fifth portion aligned with the first-second portion 330a2, and the outer contour of the fifth non-display area NA5 may include a third-first portion aligned with the first-third portion 330a3.

[0099] The first-fourth portion may have a linear shape extending in the second direction DR2, the second-fourth portion may have a linear shape extending in the first direction DR1, and the first-fifth portion, the second-fifth portion, and the third-first portion may have a curved surface shape.

[0100] Meanwhile, the first-fourth portion and the first-fifth portion may include a first intersection P1 at which they meet each other, and the second-fourth portion and the second-fifth portion may include a second intersection P2 at which they meet each other. In addition, the third intersection P3 located in the first display area DA1 and the fourth intersection P4 located in the third-first portion of the fifth non-display area NA5 may form an extension line EL that passes through the first bending intersection DBP1 that is the intersection of the first bending line BL1 and the third bending line BL3 and bisects the angle formed by the first bending line BL1 and the third bending line BL3.

[0101] Corner portions of the other side in the first direction DR1 and one side in the second direction DR2 of the display panel 100 may be symmetrical with respect to the extension line EL. Specifically, the corner portions of the other side in the first direction DR1 and one side in the second direction DR2 of the display panel 100 may include the first to fifth portions of the first non-display area NA1, the second to fifth portions of the third non-display area NA3, and the third to first portions of the fifth non-display area NA5.

[0102] Relative to the extension line EL, the first to fifth portions of the first non-display area NA1 and the second to fifth portions of the third non-display area NA3 may be symmetrical to each other, and the third to first portions of the fifth non-display area NA5 may be symmetrical. In this specification, the term "symmetrical" refers to a case where a configuration on one side of the extension line EL and a configuration on the other side of the extension line EL completely overlap or substantially overlap each other when the configurations are folded relative to the extension line EL.

[0103] That is, along the outer contour of the non-display areas NA1, NA3 and NA5 of the corner portions of the display panel 100 on the other side in the first direction DR1 and on one side in the second direction DR2, the length from the first intersection P1 to the fourth intersection P4 may be the same as the length from the second intersection P2 to the fourth intersection P4.

[0104] In addition, when the curved surface shape formed from the first intersection P1 to the fourth intersection P4 along the outer contour of the non-display areas NA1, NA3 and NA5 at the corner parts of the display panel 100 on the other side in the first direction DR1 and on the one side in the second direction DR2 has a predetermined curvature, and the curved surface shape formed from the second intersection P2 to the fourth intersection P4 along the outer contour of the non-display areas NA1, NA3 and NA5 at the corner parts of the display panel 100 on the other side in the first direction DR1 and on the one side in the second direction DR2 has a predetermined curvature, the curved surface shape from the first intersection P1 to the fourth intersection P4 and the curved surface shape from the second intersection P2 to the fourth intersection P4 may both have a first curvature CR1.

[0105] A center point of a circle when a circle is drawn by the curved surface shape from the first intersection P1 to the fourth intersection P4 and a center point of a circle when a circle is drawn by the curved surface shape from the second intersection P2 to the fourth intersection P4 may be identical to each other.

[0106] The window base substrate 310 may have a planar shape that is the same as or substantially similar to that of the display panel 100 as described above, and may be disposed to overlap the display panel 100 in a thickness direction.

[0107] That is, the window base substrate 310 may include an outer contour aligned with and / or overlapped with the outer contour of the display panel 100. The outer contour of the window base substrate 310 may be completely aligned with outer contours of corner portions of the display panel 100 on the other side in the first direction DR1 and on one side in the second direction DR2.

[0108] Relative to the extension line EL, the portions aligned with the first to fifth portions of the first non-display area NA1 within the outer contour of the window base substrate 310 and the portions aligned with the second to fifth portions of the third non-display area NA3 within the outer contour of the window base substrate 310 can be symmetrical, and the portions aligned with the third to first portions of the fifth non-display area NA5 within the outer contour of the window base substrate 310 can be symmetrical.

[0109] Corner portions of the window base substrate 310 on the other side in the first direction DR1 and on the one side in the second direction DR2 may have a curvature. A curvature of the corner portions of the window base substrate 310 on the other side in the first direction DR1 and on the one side in the second direction DR2 may be equal to a curvature of a corner portion of the display panel 100 on the other side in the first direction DR1 and on the one side in the second direction DR2. A curvature of the window base substrate 310 may be a first curvature CR1.

[0110] As described above, in the display panel 100 of the display device 1 according to the exemplary embodiment, the bending intersections DBP1 to DBP4 are located outside the display panel 100, and thus it is possible to prevent double bending at the corner portion of the display panel 100 due to the intersecting bending lines BL1 to BL4 when the display panel 100 is bent at the bending lines BL1 to BL4. Therefore, it is possible to prevent an increase in bending stress due to the double bending in advance.

[0111] In addition, in the display panel 100 according to an exemplary embodiment, the corner portions of the display panel 100 on the other side in the first direction DR1 and on the one side in the second direction DR2 are formed symmetrically with respect to the extension line EL. Therefore, when the outer contour of the non-display area located at the corner portion and constituting the side surface portion of the display panel 100 (for example, the first non-display area NA1 and the third non-display area NA3 and the fifth non-display area NA5 constituting the flat portion of the display panel 100) is formed by a cutting process or the like, the outer contour of the non-display area can be formed with the same curvature and the same length with respect to the extension line EL, thereby greatly reducing the process time and process errors.

[0112] In addition, according to Fig. 9 In the case where the window base substrate 310 is larger than the display panel 100 in a plan view and the window member 300a whose side surface protrudes from the side surface of the display panel 100 is applied, when the corner portions of the display panel 100 on the other side in the first direction DR1 and on the one side in the second direction DR2 have an asymmetric shape with respect to the extension line EL, the window base substrate 310 of the window member 300a covering the corner portions of the display panel 100 on the other side in the first direction DR1 and on the one side in the second direction DR2 may also have different curvatures and areas at one side and the other side of the extension line EL of the extension portion compared to the corner portions of the display panel 100. However, in the display panel 100 according to the exemplary embodiment, since the corner portions of the display panel 100 on the other side in the first direction DR1 and on the one side in the second direction DR2 are formed symmetrically with respect to the extension line EL, the window base substrate 310 of the corresponding window member 300a may also have the same curvature and area at one side and the other side of the extension line EL of the extension portion compared to the corner portions of the display panel 100. Therefore, during the lamination process of the window member 300 a and the display panel 100 , bonding failure due to lamination pressure or the like may be prevented in advance.

[0113] Hereinafter, other embodiments will be described. In the following embodiments, components identical to those of the previously described embodiments are denoted by the same reference numerals, and descriptions thereof will be omitted or simplified.

[0114] Fig.10 is an enlarged partial plan view of a display panel and a window member according to another exemplary embodiment. Fig.10 According to the present exemplary embodiment, the display panel 100_1 is different from the display panel 100_1 according to Figure 7 The display panel 100 is different in that an outer contour of the non-display area at the fourth intersection P4 includes an inflection point.

[0115] More specifically, in the display panel 100_1 according to the present exemplary embodiment, the inflection point may be formed at a fourth intersection point P4 where the extended line EL crosses the third-first portion.

[0116] As in an exemplary embodiment, corner portions of the display panel 100_1 on the other side in the first direction DR1 and on the one side in the second direction DR2 may be symmetrical with respect to the extension line EL. With respect to the extension line EL, the first to fifth portions of the first non-display area NA1 and the second to fifth portions of the third non-display area NA3 may be symmetrical with each other, and the third to first portions of the fifth non-display area NA5 may be symmetrical.

[0117] The inflection point may be set in the third-first portion of the fifth non-display area NA5. Even in the present exemplary embodiment, along the outer contours of the non-display areas NA1, NA3, and NA5 at the corner portions of the other side of the display panel 100_1 in the first direction DR1 and one side in the second direction DR2, the length from the first intersection P1 to the fourth intersection P4 may be the same as the length from the second intersection P2 to the fourth intersection P4.

[0118] In addition, when the curved surface shape formed from the first intersection P1 to the fourth intersection P4 along the outer contour of the non-display areas NA1, NA3, and NA5 at the corner portions of the display panel 100_1 on the other side in the first direction DR1 and on the one side in the second direction DR2 has a predetermined curvature, and the curved surface shape formed from the second intersection P2 to the fourth intersection P4 along the outer contour of the non-display areas NA1, NA3, and NA5 at the corner portions of the display panel 100_1 on the other side in the first direction DR1 and on the one side in the second direction DR2 has a predetermined curvature, the curved surface shape from the first intersection P1 to the fourth intersection P4 and the curved surface shape from the second intersection P2 to the fourth intersection P4 may have the same curvature. That is, the curved surface shape from the first intersection P1 to the fourth intersection P4 and the curved surface shape from the second intersection P2 to the fourth intersection P4 may both have the second curvature CR2.

[0119] However, with Figure 7 Unlike the display panel 100, in the display panel 100_1 according to the present exemplary embodiment, the center point of a circle when a circle is drawn by the curved surface shape from the first intersection P1 to the fourth intersection P4 and the center point of a circle when a circle is drawn by the curved surface shape from the second intersection P2 to the fourth intersection P4 may be different from each other.

[0120] The window base substrate 310_1 may have a planar shape that is the same as or substantially similar to the display panel 100_1 described above, and may be disposed to overlap the display panel 100_1 in a thickness direction.

[0121] That is, the window base substrate 310_1 may include an outer contour aligned with and / or overlapped with the outer contour of the display panel 100_1. The outer contour of the window base substrate 310_1 may be completely aligned with the outer contours of the corner portions of the display panel 100_1 on one side in the second direction DR2 and the other side in the first direction DR1.

[0122] Even in the present exemplary embodiment, as described above, the bending intersections DBP1 to DBP4 are located outside the display panel 100_1, so it is possible to prevent double bending at the corner portion of the display panel 100_1 due to the intersecting bending lines BL1 to BL4 when the display panel 100_1 is bent at the bending lines BL1 to BL4. Therefore, it is possible to prevent the increase of bending stress due to the double bending in advance.

[0123] In addition, in the display panel 100_1 according to the present exemplary embodiment, the corner portions of the display panel 100_1 on the other side in the first direction DR1 and on the one side in the second direction DR2 are formed symmetrically with respect to the extension line EL. Therefore, when the outer contour of the non-display area located at the corner portion and constituting the side surface portion of the display panel 100_1 (for example, the first non-display area NA1 and the third non-display area NA3 and the fifth non-display area NA5 constituting the flat portion of the display panel 100_1) is formed by a cutting process or the like, the outer contour of the non-display area can be formed with the same curvature and the same length with respect to the extension line EL, thereby greatly reducing the process time and process errors.

[0124] Fig.11 is an enlarged partial plan view of a display panel and a window member according to still another exemplary embodiment.

[0125] Reference Fig.11 According to the present exemplary embodiment, the window member 300_2 is different from the window member 300_2 according to Fig.10 The window member 300_2 is different from the display panel 100_1 in that the window member 300_2 protrudes more than the corner portion of the display panel 100_1 in a plan view.

[0126] More specifically, in the window member 300_2 according to the present exemplary embodiment, the window base substrate may protrude more than the corner portion of the display panel 100_1 in a plan view. Fig.11 As shown in FIG. 1 , the window member 300_2 may protrude more than corner portions of the display panel 100_1 at the other side in the first direction DR1 and at one side in the second direction DR2 in a plan view.

[0127] The window base substrate of the window member 300_2 may have a corner portion that passes through the first intersection P1 and the second intersection P2 of the display panel 100_1 in a plan view and extends further outward than the fourth intersection P4. The curvature of the corner portion of the window base substrate of the window member 300_2 may be greater than the curvature of the corner portion of the display panel 100_1.

[0128] The curvature of the corner portion of the window base substrate of the window member 300_2 may be the same, but the present invention is not limited thereto and may include a plurality of curvatures. Even in this case, the curvature of the corner portion of the window base substrate of the window member 300_2 may be greater than the curvature of the corner portion of the display panel 100_1.

[0129] Even in the present exemplary embodiment, as described above, the bending intersections DBP1 to DBP4 are located outside the display panel 100_1, so it is possible to prevent double bending at the corner portion of the display panel 100_1 due to the intersecting bending lines BL1 to BL4 when the display panel 100_1 is bent at the bending lines BL1 to BL4. Therefore, it is possible to prevent the increase of bending stress due to the double bending in advance.

[0130] In addition, in the display panel 100_1 according to the present exemplary embodiment, the corner portions of the display panel 100_1 on the other side in the first direction DR1 and on the one side in the second direction DR2 are formed symmetrically with respect to the extension line EL. Therefore, when the outer contour of the non-display area located at the corner portion and constituting the side surface portion of the display panel 100_1 (for example, the first non-display area NA1 and the third non-display area NA3 and the fifth non-display area NA5 constituting the flat portion of the display panel 100_1) is formed by a cutting process or the like, the outer contour of the non-display area can be formed with the same curvature and the same length with respect to the extension line EL, thereby greatly reducing the process time and process errors.

[0131] Fig.12 is an enlarged partial plan view of a display panel and a window member according to still another exemplary embodiment.

[0132] Reference Fig.12 According to the present exemplary embodiment, the display panel 100_2 and Figure 7 The display panel 100_2 is different in that a plurality of inflection points are included between the first intersection P1 and the fourth intersection P4 and between the second intersection P2 and the fourth intersection P4. The plurality of inflection points may be located on the outer contour of the display panel 100_2.

[0133] More specifically, the display panel 100_2 according to the present exemplary embodiment may include a plurality of inflection points P5 and P6 between the first intersection P1 and the fourth intersection P4 and between the second intersection P2 and the fourth intersection P4.

[0134] As in the exemplary embodiment, the corner portions of the display panel 100_2 on the other side in the first direction DR1 and on the one side in the second direction DR2 may be symmetrical with respect to the extension line EL. With respect to the extension line EL, the first to fifth portions of the first non-display area NA1 may be symmetrical with the second to fifth portions of the third non-display area NA3, and the third to first portions of the fifth non-display area NA5 may be symmetrical.

[0135] In the present exemplary embodiment, the plurality of inflection points P5 and P6 are shown to be two, but the present invention is not limited thereto, and there may be four or more (such as four or six) even-numbered plurality of inflection points.

[0136] For example, the plurality of inflection points P5 and P6 may be located on the outer contours of the first non-display area NA1 and the third non-display area NA3, respectively. However, the present invention is not limited thereto, and the plurality of inflection points P5 and P6 may be located on the outer contour of the fifth non-display area NA5.

[0137] Even in the present exemplary embodiment, along the outer contours of the non-display areas NA1, NA3 and NA5 of the corner portions of the display panel 100_2 at the other side in the first direction DR1 and at one side in the second direction DR2, the length from the first intersection P1 to the fourth intersection P4 may be the same as the length from the second intersection P2 to the fourth intersection P4.

[0138] In addition, when the curved surface shape formed from the first intersection P1 to the first inflection point P5 along the outer contour of the non-display areas NA1, NA3, and NA5 of the corner portions of the display panel 100-2 on the other side in the first direction DR1 and on one side in the second direction DR2 has a predetermined curvature, and the curved surface shape formed from the second intersection P2 to the second inflection point P6 along the outer contour of the non-display areas NA1, NA3, and NA5 of the corner portions of the display panel 100-2 on the other side in the first direction DR1 and on one side in the second direction DR2 has a predetermined curvature, the curved surface shape from the first intersection P1 to the first inflection point P5 and the curved surface shape from the second intersection P2 to the second inflection point P6 may have the same curvature. That is, the curved surface shape from the first intersection P1 to the first inflection point P5 and the curved surface shape from the second intersection P2 to the second inflection point P6 may both have a third curvature CR3.

[0139] In addition, when the curved surface shape formed from the fourth intersection P4 to the first inflection point P5 along the outer contour of the non-display areas NA1, NA3, and NA5 of the corner portion of the display panel 100_2 on the other side in the first direction DR1 and on one side in the second direction DR2 has a predetermined curvature, and the curved surface shape formed from the fourth intersection P4 to the second inflection point P6 along the outer contour of the non-display areas NA1, NA3, and NA5 of the corner portion of the display panel 100_2 on the other side in the first direction DR1 and on one side in the second direction DR2 has a predetermined curvature, the curved surface shape from the fourth intersection P4 to the first inflection point P5 and the curved surface shape from the fourth intersection P4 to the second inflection point P6 may have the same curvature. That is, the curved surface shape from the fourth intersection P4 to the first inflection point P5 and the curved surface shape from the fourth intersection P4 to the second inflection point P6 may both have a fourth curvature CR4.

[0140] In the present exemplary embodiment, the fourth curvature CR4 may be greater than the third curvature CR3. That is, the outer contours of the non-display areas NA1, NA3, and NA5 at the corner portions of the display panel 100_2 at the other side in the first direction DR1 and at one side in the second direction DR2 may have a central portion having the smoothest form, and may have a shape having a gentler form than the central portion at one side and the other side along the curved surface shape.

[0141] and Figure 7 Unlike the display panel 100, in the display panel 100_2 according to the present exemplary embodiment, the center point of a circle when a circle is drawn by the curved surface shape from the first intersection point P1 to the first inflection point P5, the center point of a circle when a circle is drawn by the curved surface shape from the second intersection point P2 to the second inflection point P6, and the center point of a circle when a circle is drawn by the curved surface shape from the first inflection point P5 to the second inflection point P6 may be different from each other.

[0142] The window base substrate 310_3 may have a planar shape that is the same as or substantially similar to the display panel 100_2 as described above, and may be disposed to overlap the display panel 100_2 in a thickness direction.

[0143] That is, the window base substrate 310_3 may include an outer contour aligned with and / or overlapped with the outer contour of the display panel 100_2. The outer contour of the window base substrate 310_3 may be completely aligned with the outer contours of the corner portions of the display panel 100_2 on one side in the second direction DR2 and the other side in the first direction DR1.

[0144] Even in the present exemplary embodiment, as described above, the bending intersections DBP1 to DBP4 are located outside the display panel 100_2, so double bending at the corner portion of the display panel 100_2 due to the intersecting bending lines BL1 to BL4 when the display panel 100_2 is bent at the bending lines BL1 to BL4 can be prevented. Therefore, an increase in bending stress due to the double bending can be prevented in advance.

[0145] In addition, in the display panel 100_2 according to the present exemplary embodiment, the corner portions of the display panel 100_2 on the other side in the first direction DR1 and on the one side in the second direction DR2 are formed symmetrically with respect to the extension line EL. Therefore, when the outer contour of the non-display area located at the corner portion and constituting the side surface portion of the display panel 100_2 (for example, the first non-display area NA1 and the third non-display area NA3 and the fifth non-display area NA5 constituting the flat portion of the display panel 100_2) is formed by a cutting process or the like, the outer contour of the non-display area can be formed with the same curvature and the same length with respect to the extension line EL, thereby greatly reducing the process time and process errors.

[0146] Fig.13 is an enlarged partial plan view of a display panel and a window member according to still another exemplary embodiment.

[0147] Reference Fig.13 According to the present exemplary embodiment, the window member 300_4 is different from the window member 300_4 according to Fig.12 The window member 300_3 is different from the window member 300_4 in that the window member 300_4 protrudes more than the corner portion of the display panel 100_2 in a plan view.

[0148] More specifically, in the window member 300_4 according to the present exemplary embodiment, the window base substrate may protrude more than the corner portion of the display panel 100_2 in a plan view. Fig.13 As shown in FIG. 1 , the window member 300_4 may protrude more than corner portions of the display panel 100_2 at the other side in the first direction DR1 and at one side in the second direction DR2 in a plan view.

[0149] The window base substrate of the window member 300_4 may have a corner portion that passes through the first intersection point P1 and the second intersection point P2 of the display panel 100_2 in a plan view and extends more outward than the first inflection point P5 and the second inflection point P6. The curvature of the corner portion of the window base substrate of the window member 300_4 may be greater than the curvature of the corner portion of the display panel 100_2.

[0150] The curvature of the corner portion of the window base substrate of the window member 300_4 may be the same, but the present invention is not limited thereto and may include a plurality of curvatures. Even in this case, the curvature of the corner portion of the window base substrate of the window member 300_4 may be greater than the curvature of the corner portion of the display panel 100_2.

[0151] Even in the present exemplary embodiment, as described above, the bending intersections DBP1 to DBP4 are located outside the display panel 100_2, so it is possible to prevent double bending at the corner portion of the display panel 100_2 due to the intersecting bending lines BL1 to BL4 when the display panel 100_2 is bent at the bending lines BL1 to BL4. Therefore, it is possible to prevent the increase of bending stress due to the double bending in advance.

[0152] In addition, in the display panel 100_2 according to the present exemplary embodiment, the corner portions of the display panel 100_2 on the other side in the first direction DR1 and on the one side in the second direction DR2 are formed symmetrically with respect to the extension line EL. Therefore, when the outer contour of the non-display area located at the corner portion and constituting the side surface portion of the display panel 100_2 (for example, the first non-display area NA1 and the third non-display area NA3 and the fifth non-display area NA5 constituting the flat portion of the display panel 100_2) is formed by a cutting process or the like, the outer contour of the non-display area can be formed with the same curvature and the same length with respect to the extension line EL, thereby greatly reducing the process time and process errors.

[0153] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art may implement the present invention in other specific ways without changing the technical spirit or basic features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all aspects and are not restrictive.

Claims

1. A display device, comprising: a display panel having at least one corner portion and including a display area and a non-display area located around the display area; as well as a cover window, disposed on the display panel, wherein the display panel is bent along a first bending line extending in a first direction and a second bending line extending in a second direction crossing the first direction, the first bending line and the second bending line crossing each other, The display area includes a first display area, a second display area, and a third display area divided by the first bending line and the second bending line, the first display area is located in a central portion of the display area, the second display area is located at one side of the first display area in the second direction, and the third display area is located at one side of the first display area in the first direction, The non-display area includes a first non-display area, a second non-display area, and a third non-display area divided by the first bending line and the second bending line, the first non-display area is located on one side of the second display area in the second direction, the second non-display area is located on one side of the third display area in the first direction, and the third non-display area is located between the first non-display area and the second non-display area. An outer contour of a portion of the first non-display area, an outer contour of a portion of the second non-display area, and an outer contour of the third non-display area form the corner portion of the display panel, The corner portion is symmetrical with respect to an extension line that bisects an angle formed by the first bending line and the second bending line, and A first intersection point of the first bending line and the second bending line is located outside the corner portion of the display panel.

2. The display device according to claim 1, wherein: The outer contour of the first non-display area includes a first-first portion and a first-second portion, the first-first portion has a linear shape, and the first-second portion has a curved surface shape, the outer contour of the second non-display area includes a second-first portion and a second-second portion, the second-first portion has a linear shape, and the second-second portion has a curved surface shape, and the outer contour of the third non-display area includes a third-first portion having a curved surface shape.

3. The display device according to claim 2, wherein: The first-second portion, the second-second portion, and the third-first portion form the corner portion.

4. The display device according to claim 3, wherein: A portion of the third-first portion and the first-second portion form a first sub-corner portion, and another portion of the third-first portion and the second-second portion form a second sub-corner portion, and the first sub-corner portion and the second sub-corner portion are symmetrical to each other relative to the extension line.

5. The display device according to claim 4, wherein: The first-first portion and the first-second portion include a second intersection where the first-first portion and the first-second portion meet each other, the second-first portion and the second-second portion include a third intersection where the second-first portion and the second-second portion meet each other, the extension line and the third-first portion include a fourth intersection where the extension line and the third-first portion meet each other, and the length from the second intersection to the fourth intersection along the outer contour of the corner portion is the same as the length from the third intersection to the fourth intersection.

6. The display device according to claim 4, wherein: The first sub-corner portion and the second sub-corner portion each have a curvature, and the curvatures are identical to each other.

7. The display device according to claim 6, wherein: A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion are identical to each other.

8. The display device according to claim 6, wherein: A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion are different from each other.

9. The display device according to claim 4, wherein: The first sub corner portion and the second sub corner portion have a plurality of curvatures.

10. The display device according to claim 1, wherein: The cover window includes a window base substrate having a size greater than or equal to that of the display panel in a plan view and a printed layer overlapping the first to third non-display areas of the display panel in a thickness direction.

11. The display device according to claim 10, wherein: The display panel includes a flat portion, a first side surface portion, and a second side surface portion, the first side surface portion is bent in the thickness direction from one side of the flat portion in the second direction relative to the first bending line, and the second side surface portion is bent in the thickness direction from one side of the flat portion in the first direction relative to the second bending line, wherein the flat portion includes the first display area and the third non-display area, the first side surface portion includes the first non-display area and the second display area arranged between the first non-display area and the first display area, and the second side surface portion includes the second non-display area and the third display area arranged between the second non-display area and the first display area.

12. The display device according to claim 11, wherein: The cover window has a size larger than that of the display panel in a plan view, and faces the first and second side surface portions of the display panel in a region extending further toward the outside than the display panel.

13. A display panel, comprising: at least one corner portion; as well as A display area and a non-display area, wherein the non-display area is located around the display area. wherein the display panel is bent along a first bending line extending in a first direction and a second bending line extending in a second direction crossing the first direction, the first bending line and the second bending line crossing each other, The display area includes a first display area, a second display area, and a third display area divided by the first bending line and the second bending line, the first display area is located in a central portion of the display area, the second display area is located at one side of the first display area in the second direction, and the third display area is located at one side of the first display area in the first direction, The non-display area includes a first non-display area, a second non-display area, and a third non-display area divided by the first bending line and the second bending line, the first non-display area is located on one side of the second display area in the second direction, the second non-display area is located on one side of the third display area in the first direction, and the third non-display area is located between the first non-display area and the second non-display area. An outer contour of a portion of the first non-display area, an outer contour of a portion of the second non-display area, and an outer contour of the third non-display area form the corner portion of the display panel, and The corner portion is symmetrical with respect to an extension line that bisects an angle formed by the first bending line and the second bending line. A first intersection point of the first bending line and the second bending line is located outside the corner portion of the display panel.

14. The display panel according to claim 13, wherein: The outer contour of the first non-display area includes a first-first portion and a first-second portion, the first-first portion has a linear shape, and the first-second portion has a curved surface shape, the outer contour of the second non-display area includes a second-first portion and a second-second portion, the second-first portion has a linear shape, and the second-second portion has a curved surface shape, and the outer contour of the third non-display area includes a third-first portion having a curved surface shape, wherein the first-second portion, the second-second portion and the third-first portion form the corner portion.

15. The display panel according to claim 14, wherein: A portion of the third-first portion and the first-second portion form a first sub-corner portion, and another portion of the third-first portion and the second-second portion form a second sub-corner portion, and the first sub-corner portion and the second sub-corner portion are symmetrical to each other relative to the extension line.

16. The display panel according to claim 15, wherein: The first sub-corner portion and the second sub-corner portion each have a curvature, and the curvatures are identical to each other.

17. The display panel according to claim 16, wherein: A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion are identical to each other.

18. The display panel according to claim 16, wherein: A center of a circle formed by the first sub corner portion and a center of a circle formed by the second sub corner portion are different from each other.

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