Display devices

Abstract

A display device is discussed that reduces a non-display area recognized by a user by applying a curved portion to the entire edge region of a display panel. The display device may include: a display panel configured to display an image; and a cover member positioned on the display panel and configured to protect the display panel, wherein the display panel and the cover member each include a first curved portion in which a side region is curved and a second curved portion in which a corner region is curved, and wherein a thickness of the corner region of the cover member is different from a thickness of the side region of the cover member.

Description

Technical Field

[0001] The present disclosure relates to a display device, and more particularly, to a display device capable of reducing a non-display area recognized by a user by bending an entire portion of an edge region of a display panel. Background Art

[0002] Display devices for displaying images on TVs, monitors, smartphones, tablet PCs, and notebook computers are provided in various types and shapes.

[0003] Among various types of display devices, liquid crystal display devices (LCDs) are still in use today, and the use and application of organic light emitting display devices (OLEDs) are also rapidly expanding.

[0004] The display device includes a display panel having a plurality of light emitting elements or liquid crystals for realizing an image and a drive transistor for controlling the operation of each light emitting element or liquid crystal so that the plurality of light emitting elements or liquid crystals display according to information to be displayed.

[0005] Liquid crystal display devices are not self-luminous displays, and therefore require a light source such as a backlight, which is provided on the rear surface of the display panel to emit light. The backlight increases the thickness of the liquid crystal display device and imposes restrictions on realizing a display device that is flexible or has various designs.

[0006] Organic light-emitting display devices with self-luminous display elements can be implemented to be thinner than display devices with a separate light source such as a backlight. Since organic light-emitting display devices do not require a separate light source, they can be flexible or have various designs.

[0007] Such an organic light emitting display device may include a flexible display panel, and the flexible display panel may have a display area (AA) for displaying an image and a non-display area (NA) surrounding the display area and not displaying an image.

[0008] The non-display area of ​​the display panel may include thin film transistors for driving the plurality of pixels disposed in the display area, and pads for connecting wiring to a drive unit. When the size of the non-display area increases, the display device may become larger or the size of the display area may decrease, which may result in reduced portability, visibility, or readability.

[0009] Therefore, in order to minimize the non-display area, a display device capable of reducing the non-display area recognized by a user by bending left and right portions of the non-display area of ​​a display panel has been developed. Summary of the Invention

[0010] When the entire portion of the edge region of a flat display panel has no cutout or is bent with its shape deformed, folding may occur in a corner region of the bent portion of the edge region, which is detrimental.

[0011] Accordingly, an object of the present specification is to minimize the non-display area by bending the entire portion of the edge region of the display panel without folding.

[0012] The technical tasks of the present disclosure are not limited to the above-mentioned tasks, and other tasks to be solved that are not mentioned above will be clearly understood by those skilled in the art based on the following description.

[0013] A display device according to an embodiment of the present disclosure may include: a display panel configured to display an image; and a covering member located on the display panel and configured to protect the display panel, wherein the display panel and the covering member each may include a first bent portion in which a side area is bent and a second bent portion in which a corner area is bent.

[0014] In addition, the thickness of the corner region of the covering member may be different from the thickness of the side region of the covering member.

[0015] According to another embodiment of the present disclosure, a display device may include: a display panel, which is configured to display an image; a covering member, which is arranged on the display panel and configured to protect the display panel; and a connecting member, which is arranged between the display panel and the covering member, wherein the display panel and the covering member may include a first bent portion in which a side area is bent and a second bent portion in which a corner area is bent, wherein the side of the corner area of ​​the connecting member may have a protrusion and a recessed portion.

[0016] Other embodiments of the present disclosure are provided in detail in the following description and accompanying drawings.

[0017] According to an embodiment of the present disclosure, since the display panel includes the bent portions bent in all of the side regions and the corner regions, it can achieve an effect of reducing a non-display area recognized by a user.

[0018] In addition, when all side surfaces of the display panel are bent by changing the shapes of the cover member and the connection member as the configuration of the display device, it can achieve an effect of improving the folding phenomenon occurring in the corner area.

[0019] Advantageous effects of the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned above will be clearly understood by those skilled in the art based on the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will become more fully understood from the detailed description and accompanying drawings given below, which are given by way of illustration only and thus do not limit the present invention.

[0021] Figure 1 is a perspective view of a display device according to an embodiment of the present disclosure;

[0022] Figure 2 It is along Figure 1 A cross-sectional view taken along line II';

[0023] Figure 3 yes Figure 1 an enlarged plan view of area "A";

[0024] Figure 4 It is along Figure 1 A cross-sectional view taken along line II' in FIG. 1 illustrates a cross section of a cover member and a display panel according to an embodiment of the present disclosure;

[0025] Figure 5A 、 Figure 5B 、 Figure 5C 、 Figure 5D and Figure 5E is an illustration of the shape of a covering member according to an embodiment of the present disclosure; and

[0026] Figure 6A 、 Figure 6B and Figure 6C yes Figure 1 1 is an enlarged plan view of a region 'A' in FIG, and is a plan view illustrating a connection member according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] The advantages and features of the present disclosure and their implementation will become clear by referring to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments described below, but can be implemented in various forms. The following embodiments are provided solely to fully disclose the present disclosure and inform those skilled in the art of the scope of the present disclosure, and the present disclosure is limited only by the scope of the appended claims.

[0028] The shapes, sizes, ratios, angles, numbers, etc. illustrated in the accompanying drawings for describing various embodiments of the present disclosure are merely examples, and the present disclosure is not limited thereto. Throughout the specification, similar reference numerals generally represent similar elements. In addition, in the following description of the present disclosure, detailed descriptions of known related technologies may be omitted to avoid unnecessarily obscuring the subject matter of the present disclosure. Terms such as "including," "having," and "comprising" used herein are generally intended to allow the addition of other components, unless these terms are used together with the term "only." Unless otherwise expressly stated, any reference to the singular may include the plural.

[0029] Parts are interpreted as including ordinary error ranges even if not explicitly stated.

[0030] When terms such as "on," "above," "below," and "beside" are used to describe the positional relationship between two parts, one or more parts may be located between the two parts unless these terms are used with the terms "just" or "directly."

[0031] When an element or layer is referred to as being “on” another element or layer, the other layer or element can be directly on the other element or interposed therebetween.

[0032] Although the terms "first," "second," etc. are used to describe various components, these components should not be construed as being restricted by these terms. These terms are merely used to distinguish one component from other components. Therefore, in the technical concept of the present disclosure, the first component mentioned below may be the second component.

[0033] Throughout the specification, similar reference numbers generally refer to similar elements.

[0034] The size and thickness of each component illustrated in the drawings are illustrated for convenience of description, and the present disclosure is not necessarily limited to the size and thickness of the illustrated components.

[0035] The features of the various embodiments of the present disclosure may be coupled or combined with each other in part or in whole, and may interact with each other in various ways and be driven technically, as will be fully understood by those skilled in the art. The embodiments of the present disclosure may be performed independently of each other, or may be implemented together in association with each other.

[0036] The display device according to the present disclosure can be applied to organic light emitting display devices, but is not limited thereto, and can be applied to various display devices such as LED display devices or quantum dot display devices. All components of each display device according to all embodiments of the present disclosure are operably connected and configured.

[0037] Hereinafter, a display device according to an embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0038] Figure 1 is a perspective view of a display device according to an embodiment of the present disclosure.

[0039] Reference Figure 1 , the display device 10 may include a cover member 100 and a display panel 200 disposed below the cover member 100. The connecting member 300 (see Figure 2 ) may be disposed between the cover member 100 and the display panel 200. The connection member 300 may connect or attach the cover member 100 and the display panel 200 to each other. Furthermore, it should be understood that the display device 10 includes a plurality of gate lines, a plurality of data lines, and other elements including a plurality of thin film transistors (TFTs), wherein the plurality of thin film transistors are connected to a plurality of pixels and / or a plurality of sub-pixels or other components that enable the display device 10 to operate normally.

[0040] The cover member 100 and the display panel 200 may be formed in a rectangular or square shape, and their corner areas may be formed to have a rounded shape. For example, when viewed in a plan view, the upper side surface, the left side surface, the right side surface, and the lower side surface of the side areas of the cover member 100 and the display panel 200 may have a first curved portion 200s, and the first curved portion 200s is bent so that its distal end faces downward (e.g., -Z axis).

[0041] In the present disclosure, the "upper portion" and the "upward direction" may be in the Z-axis direction, and the "lower portion" and the "downward direction" may be in the -Z-axis direction. In addition, the Z-axis direction may be a direction toward the outside of the display device 10, and the -Z-axis direction may be a direction toward the inside of the display device 10.

[0042] The top surface may be the upper surface, and the rear surface may be the lower surface of the cover member 100 and / or the display panel 200. In addition, the positions of "upper side (upper side surface, upper side portion), lower side (lower side surface, lower side portion), left side (left side surface, left side portion), and right side (right side surface, right side portion)" may be the upper, lower, left, and right positions of the cover member 100 (or display panel 200) in the plane direction (x-axis direction and y-axis direction). The side area may be an area including predetermined areas of the upper side, lower side, left side, and right side, and the side surface may be or include a lateral surface of the cover member 100 and / or the display panel 200.

[0043] The distal end or distal region may be an end or a region extending from one end to a predetermined region, and may be expressed as a side or a portion, but is not limited thereto.

[0044] In addition, the upper left, upper right, lower left, and lower right corner portions as corner areas of the cover member 100 and / or the display panel 200 may include a second curved portion 200 c that is bent or curved toward the inside of the display device 10 .

[0045] To form the first and second curved portions 200s and 200c in the cover member 100 and / or the display panel 200, thermoforming of the flat cover member 100 may be performed first, and thereafter forming the cover member 100 having the first and second curved portions 200s and 200c may be performed.

[0046] Next, the flat display panel 200 can be placed on the covering member 100 in which the first curved portion 200s and the second curved portion 200c are formed, and when the display panel 200 is pressed with a predetermined pressure, the display panel 200 can be in close contact with the covering member 100, and the first curved portion 200s and the second curved portion 200c identical to the first curved portion 200s and the second curved portion 200c of the covering member 100 can be formed in the display panel 200.

[0047] Accordingly, the first and second bent portions 200 s and 200 c of the display panel 200 may be formed in the same region as the first and second bent portions 200 s and 200 c of the cover member 100 .

[0048] In addition, the first and second curved portions 200s and 200c of the display panel 200 may be formed to have various curvature radii according to rear surface (inner surface) shapes of the first and second curved portions 200s and 200c of the cover member 100.

[0049] Since the first curved portion 200s and the second curved portion 200c of the display panel 200 are formed in the same area as the first curved portion 200s and the second curved portion 200c of the covering member 100, and the curvature radius of the first curved portion (200s) and the second curved portion (200c) of the display panel 200 is formed to be the same as the curvature radius of the rear surface of the first curved portion (200s) and the second curved portion (200c) of the covering member 100, the first curved portion 200s and the second curved portion 200c of the covering member 100 and the display panel 200 use the same reference numerals in this disclosure (first curved portion: 200s, second curved portion: 200c).

[0050] The covering member 100 can be formed of a tempered glass material, a reinforced plastic material, and a glass material, but is not limited thereto. Other transparent materials can be used. The covering member 100 can have a plurality of straight portions 100s in which the edges of the covering member 100 are straight and a plurality of corner portions 100c in which the edges of the covering member are rounded. Each corner portion 100c can be located between adjacent straight portions 100s. In this context, the first curved portion 200s corresponds to the straight portion 100s and the second curved portion 200c corresponds to the corner portion 100c. In order to form the first curved portion 200s and the second curved portion 200c in the covering member 100, for example, the covering member 100 is placed on a lower frame in which the curved portion is formed, and is pressed with an upper frame after applying high-temperature heat thereto, thereby forming the first curved portion 200s and the second curved portion 200c, and the manner of forming the curved portion is not limited thereto, such as casting in a mold.

[0051] A connection member 300 may be provided between the cover member 100 and the display panel 200 to connect (or attach) the cover member 100 and the display panel 200 to each other.

[0052] For example, in order to fix the display panel 200 to the covering member 100, the connecting member 300 can be set (or attached) to the entire portion of the display panel 200, and then the display panel 200 with the connecting member 300 set thereon can be set (or attached) to the covering member 100, so that the display panel 200 can be fixed to the covering member 100.

[0053] The connection member 300 may be formed of a transparent adhesive member so that an image displayed on the display panel 200 can be displayed toward the front through the connection member 300 and the cover member 100. For example, the connection member 300 may be composed of or include a material such as an optically clear adhesive (OCA), an optically clear resin (OCR), or a pressure-sensitive adhesive (PSA), but is not limited thereto.

[0054] The flat portion 200f may be formed in the center area of ​​the top surface of the cover member 100 and the display panel 200. The flat portion 200f may be a flat area without any curved area, and the distal end (or one side or one portion) of the flat portion 200f may be connected to the first curved portion 200s and the second curved portion 200c. In the embodiments of the present disclosure, reference to flat may refer to an essentially planar area or an area without curvature or having zero curvature.

[0055] The display area AA of the display panel 200 may be a region including the entire flat portion 200f and a portion of the first curved portion 200s and the second curved portion 200c. Furthermore, the non-display area NA of the display panel 200 may be a region including a portion of the distal end (or one side or one portion) of the first curved portion 200s and the second curved portion 200c.

[0056] Because the first curved portion 200s and the second curved portion 200c are curved in the opposite direction (-Z axis) from the upper portion (Z axis) facing the display area AA, when a user views the display panel 200 from the front, only the area projected in front of the non-display area AA is recognized or observed, so the non-display area NA appears smaller than the actual area, thereby improving user visibility. In an embodiment of the present disclosure, the curvature of the first curved portion 200s and the second curved portion 200c can guide light passing through the first curved portion 200s and the second curved portion 200c away from the user, so that the user does not perceive the light from the first curved portion 200s and the second curved portion 200c.

[0057] Figure 2 It is along Figure 1 A cross-sectional view taken along line II'.

[0058] Reference Figure 2 The display device 10 may include a cover member 100, a display panel 200 coupled to or below the cover member 100, and a buffer plate (not shown) disposed below the display panel 200 and configured to absorb impact applied to the display panel 200 and radiate heat generated by components of the display device 10.

[0059] The cover member 100 may be provided to cover the front surface of the display panel 200 to protect the display panel 200 from external impact. The cover member 100 may include first and second curved portions 200s and 200c and thus may have a rounded shape curved toward the rear surface (-Z axis direction).

[0060] The cover member 100 may be disposed to cover at least partial areas of the top and side surfaces of the display panel 200 , and thus may protect both the top and side surfaces of the display panel 200 from external impact.

[0061] An image displayed on the display panel 200 may be displayed through the top surface of the cover member 100. The cover member 100 overlaps the display area AA where an image is displayed, and thus may be formed of a transparent material such as cover glass that allows an image to be displayed.

[0062] The front surface of the cover member 100 may include a display area AA and a non-display area NA as an area other than the display area AA. The non-display area NA may be formed along the periphery of the display area AA. The non-display area NA may be a bezel area, but is not limited thereto.

[0063] The display panel 200 may be connected or coupled to under the cover member 100 .

[0064] The display panel 200 may include a front portion, a bent portion, and a pad portion.

[0065] The front portion of the display panel 200 may include a display area AA in which the pixel array section 220 is provided and thus an image can be displayed, and a portion of a non-display area NA surrounding the display area AA. The front portion may include the entire flat portion 200f of the display panel 200 and portions of the first and second curved portions 200s and 200c.

[0066] The curved portion of the display panel 200 is a portion connected to the front portion and configured to be bent, and one side of the curved portion is connected to the front portion and the other side is bent to be disposed below the front portion. The portion connected to the front in the curved portion region may be formed to have a smaller width than the other regions so that the portion connected to the front can be easily bent. For example, by forming a semicircular groove on one side of the curved portion, the curved portion may have a smaller width.

[0067] The pad portion of the display panel 200 may be a portion extending from the bent portion and disposed below the front portion. The pad portion may have a driving unit for driving pixels mounted thereon, or may be connected to a flexible circuit board.

[0068] The structure of the display panel 200 is not limited to the above and may include a front portion and a pad portion without a bent portion. In the display panel 200 including the front portion and the pad portion, the flexible circuit board may be bent so that a portion of the flexible circuit board and the driving unit may be disposed below the display panel 200.

[0069] Since the connection member 300 disposed between the cover member 100 and the display panel 200 may be disposed to overlap the display area AA, it may be formed of a transparent adhesive member.

[0070] The display panel 200 disposed under the connection member 300 may include a display substrate 210, a pixel array portion 220 disposed on the display substrate 210, an encapsulation portion (not shown) disposed to cover the pixel array portion 220, and an optical plate 230. The encapsulation portion may further include touch electrodes disposed thereon.

[0071] The optical plate 230 of the display panel 200 may be disposed below the connection member 300. The optical plate 230 may have a structure in which one or more functional layers are stacked, but is not limited thereto. For example, the optical plate 230 may include an anti-reflection layer such as a polarizing film to prevent or reduce reflection of external light to improve outdoor visibility and contrast of an image displayed on the display panel 200.

[0072] In addition, the optical plate 230 may further include a barrier layer configured to prevent moisture or oxygen from penetrating. The barrier layer may be formed of a material having low moisture permeability, such as a polymer material.

[0073] The display substrate 210 disposed below the display panel 200 may serve as a base substrate of the display panel 200. The display substrate 210 may be formed of a flexible plastic material to be a flexible display substrate 210. Therefore, the display device 10 may have side regions and corner regions that can be easily bent.

[0074] For example, the display substrate may include polyimide as a plastic material having flexibility, or may include a glass material having flexibility.

[0075] The pixel array portion 220 may correspond to an area where an image is displayed toward the front surface of the cover member 100 and may correspond to the display area AA. Therefore, in the cover member 100, the area corresponding to the pixel array portion 220 may be the display area AA, and the area other than the display area AA may be the non-display area NA.

[0076] The pixel array part 220 may be implemented with various elements for displaying an image and is not particularly limited.

[0077] The pixel array section 220 may include a plurality of pixels arranged in pixel areas defined by signal lines on the display substrate 210 and displaying images according to signals supplied to the signal lines. The signal lines may include gate lines, data lines, pixel driving power lines, and other elements that may be used to implement display.

[0078] For example, each of the plurality of pixels may include a driving thin film transistor in a pixel region, an anode electrically connected to the driving thin film transistor, a light emitting element layer formed on the anode, and a cathode electrically connected to the light emitting element layer.

[0079] The driving thin film transistor may include a gate electrode, a semiconductor layer, a source electrode, a drain electrode, and other elements that may be used to implement the driving thin film transistor. The semiconductor layer of the driving thin film transistor may include silicon such as a-Si, polycrystalline Si, or low-temperature polycrystalline Si, or an oxide such as indium gallium zinc oxide (IGZO), but is not limited thereto, and other semiconductors may be used.

[0080] The anode may be a pixel electrode independently provided in each pixel region in a manner corresponding to an opening region provided according to a pattern shape of the pixel, and may be electrically connected to the driving thin film transistor.

[0081] The light emitting element layer may include, for example, an organic light emitting element formed on an anode. The organic light emitting element may be implemented to emit light of the same color for each pixel, such as white light, or to emit light of a different color for each pixel, such as red, green, blue, or white light.

[0082] The cathode may be a common electrode commonly connected to the light emitting elements of the light emitting element layer provided in each pixel region.

[0083] The encapsulation portion may be formed on the display substrate 210 to cover the pixel array portion 220. The encapsulation portion may prevent oxygen, moisture, or impurities from penetrating into the light emitting element layer of the pixel array portion 220. For example, the encapsulation portion may be formed as a multilayer structure in which organic material layers and inorganic material layers are alternately stacked.

[0084] The reinforcing plate 400 may be selectively provided below the display substrate 210. When the rigidity of the buffer plate or the display substrate 210 is high, it is not necessary to provide the reinforcing plate 400. The reinforcing plate 400 may be a back plate, but is not limited thereto.

[0085] The reinforcing plate 400 may be formed to have predetermined strength and thickness to supplement the rigidity of the display substrate 210 and maintain the shape of the display substrate 210 , and does not need to be formed in a region of the display panel 200 corresponding to a bent portion.

[0086] A buffer plate may be disposed under the reinforcement plate 400 to absorb impact applied to the display panel 200 and radiate heat generated from the display device 10 .

[0087] The buffer plate may include an adhesive layer, a buffer layer, a lighting prevention layer, and a heat radiation layer. The buffer plate is not limited thereto and may be configured to include a porous member and an adhesive member, and may be configured to include various components.

[0088] The light shielding portion 110 may be formed in a portion of the side and corner regions of the edge region of the cover member 100. The light shielding portion 110 may be applied with black ink, thereby preventing various components disposed thereunder from being visually recognized and blocking external light from entering the display device 10.

[0089] The shading portion 110 can prevent the distal end (or a side or a portion) area of ​​the display panel 200 disposed below the shading portion 110 from being visually identified, so that even when folding occurs at the distal end (or a side or a portion) of the display panel 200, the folding of the distal end (or a side or a portion) of the display panel 200 cannot be visually identified by a user in front of it.

[0090] The region where the light shielding portion 110 is provided may be the non-display area NA. The region where the light shielding portion 110 is not provided but the pixel array portion 220 is provided may be the display area AA.

[0091] Since the cover member 100 forms a curved portion using a thermoforming process using glass or plastic material, it can be formed to have a curved portion without folding in the corner area. However, the display panel 200 disposed under the cover member 100 includes a display substrate 210, a pixel array portion 220, and an optical plate 230, which are easily damaged when heat and high pressure are applied and are therefore difficult to form a curved portion in the same manner as the cover member 100.

[0092] When the display panel 200 is bent by applying minimal pressure in a state where heat is not applied thereto, a bent portion may be formed without components therein being broken.

[0093] Figure 3 yes Figure 1 An enlarged plan view of area "A".

[0094] Reference Figure 3 In the display panel 200, the first curved portion 200s1 in the upper side region, the first curved portion 200s2 in the right side region, and the second curved portion 200c in the upper right corner region can be continuously connected to each other and integrally provided. For example, by bending the side regions and the corner regions together without cutting or deforming the flat display panel 200, the first curved portion 200s1 in the upper side region, the first curved portion 200s2 in the right side region, and the second curved portion 200c in the upper right corner region can be formed.

[0095] Here, for ease of description, the first bend 200s1 of the upper side area and the first bend 200s2 of the right side area are indicated by reference numerals 200s1 and 200s2, but elsewhere in this document, the first bend 200s1 of the upper side area and the first bend 200s2 of the right side area are depicted by reference numeral 200s.

[0096] When the display panel 200 is bent by applying minimal pressure without thermoforming, the display panel 200 can be bent without deformation, and thus folding of the display panel 200 may occur at a corner area where the first curved portion 200s1 and the first curved portion 200s2 of the upper side surface area intersect. For example, folding may occur in the second curved portion 200c.

[0097] In order to remove the folded portion of the display panel 200 at the corner region, a scheme of cutting the entire corner region or cutting only the folded portion from the corner region and connecting both side portions after cutting may be used.

[0098] In an embodiment of the present disclosure, a configuration will be described in which the second bent portion 200 c and the first bent portion 200 s are continuously connected without generating a folded portion in a corner region and without a cutout portion in the corner region so as to be integrally formed.

[0099] For example, by changing the curved shape or curvature radius of the corner area of ​​the display panel 200 or by changing the shape of the connection member 300 , the first curved portion 200 s and the second curved portion 200 c are continuously connected and integrally formed without cutting the corner area.

[0100] If a cut portion is included in a corner area of ​​the display panel 200, the line on the cut side is visible, so the quality of the displayed image may deteriorate, and the signal wiring must be reconnected to bypass the cut portion in the corner area, and the wiring design and manufacturing method therefor may become complicated, but this problem can be solved using the configuration of the present disclosure.

[0101] In addition, the integrally formed second curved portion 200c and first curved portion 200s can have advantages in terms of design. For example, when viewed from the forward (Z-axis) direction, the first curved portion 200s can have a straight shape, while when viewed from the cross-sectional (X-axis or Y-axis) direction, it can have a circular shape. In addition, when viewed from both the forward (Z-axis) direction and the cross-sectional (X-axis or Y-axis) direction, the second curved portion 200c has a circular shape, so that the display device 10 as a whole can have an aesthetically pleasing streamlined design.

[0102] Figure 4 It is along Figure 1 A cross-sectional view taken along line II′ in FIG. 1 illustrates a cross section of a cover member and a display panel according to another embodiment of the present disclosure.

[0103] Reference Figure 4In order to prevent folding in the corner region of the display panel 200, the radius of curvature of the corner region of the cover member 100 may be formed to be larger than the radius of curvature of the side region. For example, by making the curvature of the second curved portion 200c, which is the corner region of the display panel 200, smaller than the curvature of the first curved portion 200s, which is the side region, folding of the display panel 200 in the corner region can be improved.

[0104] Since the curvature of the display panel 200 is determined according to the rear surface shape of the cover member 100 , it is unnecessary to adjust the shape of the top surface of the cover member 100 , and the curvature of the display panel 200 may be adjusted by adjusting the shape of the rear surface of the cover member 100 .

[0105] For example, regarding the cross-section of the corner region of the cover member 100, the top surface may have a first curvature, and the first curvature may have a curved (or rounded) shape, and the rear surface may have a second curvature, and the second curvature may be formed into a mixed shape having curved portions 100a1 and 100a2 and a straight portion 100b, so that the curvature of the display panel 200 can be reduced. Accordingly, the first curvature and the second curvature may be different. In addition, since the rear surface may include a portion having a straight portion 110b, the straight portion 110b may be said to have zero curvature.

[0106] According to an embodiment of the present disclosure, the shape of the rear surface may include a left curved portion 100a1, a center straight portion 100b, and a right curved portion 100a2 with respect to a cross section of a corner region of the cover member 100. The straight portion 100b may be provided between the left curved portion 100a1 and the right curved portion 100a2 and may be formed along a straight line connecting an end point of the left curved portion 100a1 and a starting point of the right curved portion 100a2.

[0107] Regarding the cross-section of the corner area of ​​the covering member 100, the left curved portion 100a1 and the right curved portion 100a2 of the rear surface can be formed to have a curvature radius close to that of the curved (or circular) portion of the top surface, and the straight portion 100b can be formed into a straight shape by filling or supplementing the curved portion that can be formed in the middle area and adjusting the curvature of the middle area.

[0108] Accordingly, the thickness of the covering member 100 at the point where the straight portion 100b is formed may be thicker than the thickness of the covering member 100 at the point where the curved portions 100a1 and 100a2 are formed. In addition, the thickness of the second curved portion 200c at which the corner area of ​​the covering member 100 is bent may be thicker than the thickness of the first curved portion 200s at which the side area of ​​the covering member 100 is bent.

[0109] When the straight portion 100b is formed by filling the curved portion, the curvature of the display panel 200 disposed under the cover member 100 is smaller than that when the rear surface of the cover member 100 is formed using only the curved portion. For example, when the straight portion 100b is added thereto, the approximate (or average) curvature radius in the second curved portion 200c including the straight portion 100b can be increased.

[0110] As the curvature radius of the rear surface of the cover member 100 increases, the curvature radius of the display panel 200 disposed under the cover member 100 may also increase, and the curvature of the display panel 200 in the corner region may decrease.

[0111] In the corner area of ​​the cover member 100, the curvature of the display panel 200 can be reduced because the straight portion 100b is almost horizontally arranged. Accordingly, by appropriately changing the arrangement angle and thickness of the straight portion 100b, the display panel 200 can be bent and folding can be prevented in the corner area.

[0112] In the corner region of the cover member 100, when the starting point of the right curved portion 100a2 is formed at a position that does not overlap with the display panel 200, the curvature can be reduced because the display panel 200 cannot bend along the right curved portion 100a2 of the cover member 100. Otherwise, in the corner region of the cover member 100, the same effect can be obtained by deleting the right curved portion 100a2 and using only the left curved portion 100a1 and the straight portion 100b.

[0113] According to an embodiment of the present disclosure, in the corner region of the cover member 100 , since folding does not occur when the top surface is formed in a circular shape, it may have advantages in design and reduction of the non-display area NA.

[0114] As another advantage, regarding the corner area of ​​the cover member 100 , at the position where the straight portion 100 b is formed, the top surface of the cover member 100 is formed in a circular shape and the lower surface is formed in a flat shape so that it can have a shape such as a convex lens.

[0115] Accordingly, an image displayed in a portion of the display panel 200 disposed below the straight portion 100 b of the cover member 100 may be displayed in an enlarged manner by the cover member 100 .

[0116] When a small portion displayed on the upper side surface such as the status display window of the display panel 200 is provided in the corner area, an image magnified by the cover member 100 can be obtained, thereby increasing visibility and readability for a user.

[0117] Figure 5A 、 Figure 5B 、 Figure 5C 、 Figure 5D and Figure 5E The shape of the covering member according to the embodiment of the present disclosure is illustrated.

[0118] Figures 5A to 5E The structures of the covering member and the display panel are as follows: Figure 2 or Figure 4 Similarly, the display panel is provided below the cover member, but is not depicted to focus on the cover member 100 .

[0119] exist Figures 5A to 5E , the covering member is not indicated by specific reference numerals, but as in other figures, the covering member is denoted by reference numeral "100" and the reference numeral "200" is used for the display panel, and the following description will use the same reference numerals as those described in other figures.

[0120] Reference Figure 5A , regarding the cross-sectional shape of the corner area of ​​the covering member 100, both the top surface and the rear surface have a circular (curved) shape, and the thickness thereof can be formed uniformly. In an embodiment of the present disclosure, the tensile stress of the display panel 200 disposed below the covering member 100 can be 32.6 MPa, and the compressive stress thereof can be -18 MPa. In an embodiment of the present disclosure, since the curvature radius of the display panel 200 is formed to be the smallest compared to other embodiments, it is most curved, and therefore the compressive stress and the tensile stress of the display panel 200 generated in the corner area become the highest. Accordingly, the possibility of folding occurring in the corner area of ​​the display panel 200 fixed to the covering member 100 of the first embodiment may be high. When both the top surface and the rear surface have a circular (curved) shape and the thickness thereof can be formed uniformly, the first curvature of the top surface and the second curvature of the rear surface can be the same.

[0121] The compressive stress and tensile stress causing the fold in the corner region of the display panel 200 may vary according to the size and shape of the display panel 200 , however, the fold may occur under a compressive stress of about 35 MPa or higher and a tensile stress of about −20 MPa or higher.

[0122] Reference Figure 5B , regarding the cross-sectional shape of the corner area of ​​the cover member 100, the top surface may have a rounded (curved) shape, the rear surface may have a straight shape, and the thickness may be thickest at the center point of the straight area. In the embodiment of the present disclosure, the tensile stress of the display panel 200 disposed under the cover member 100 is 31.3 MPa, and the compressive stress thereof is -17.4 MPa. When compared with Figure 5AWhen compared, the tensile stress is reduced by 4% and the compressive stress is reduced by 3.3% compared to the covering member 100, making the Figure 5A Compared to the top surface, the possibility of folding is lower. When the top surface has a rounded (curved) shape and the back surface has a straight shape, the first curvature of the top surface and the second curvature of the back surface can be different. In addition, since the top surface has a curved shape and the back surface has a straight shape, the first curvature of the top surface can be greater than the second curvature of the back surface (i.e., zero curvature).

[0123] Reference Figure 5C , with respect to the cross-sectional shape of the corner area of ​​the cover member 100, both the top surface and the rear surface are formed to be curved to have a circular shape, and may have a concave shape formed so that the thickness is greatest at the center point of the corner area. In the embodiment of the present disclosure, the tensile stress of the display panel 200 disposed under the cover member 100 is 30.9 MPa, and the compressive stress thereof is -17.2 MPa, so when compared with Figure 5A When compared, the tensile stress is reduced by 5.2% and the compressive stress is reduced by 4.4% compared to the covering member 100, making the Figure 5A and Figure 5B When the top surface has a rounded (curved) shape and the rear surface has a rounded (curved) shape, the first curvature of the top surface and the second curvature of the rear surface may be different.

[0124] refer to Figure 5D , with respect to the cross-sectional shape of the corner area of ​​the cover member 100, the top surface is formed into a circular shape that is curved and convex upward (i.e., toward the outside of the display device), and the rear surface has a shape that is convex downward (i.e., toward the inside of the display device), and the center point of the corner area may have a convex shape with the largest thickness. In the embodiment of the present disclosure, the tensile stress of the display panel 200 disposed under the cover member 100 is 32.3 MPa, and the compressive stress thereof is -18 MPa, and although the tensile stress is greater than Figure 5A The covering member 100 is reduced by 1%, but the compressive stress is the same, so that the possibility of folding can be the same as Figure 5A In an embodiment of the present disclosure, when the top surface has a circular (curved) shape and the rear surface has a circular (curved) shape, the first curvature of the top surface and the second curvature of the rear surface may be different or the same depending on whether the curvature is set upward or downward.

[0125] Reference Figure 5E Regarding the cross-sectional shape of the corner area of ​​the cover member 100, the top surface may have a circular shape, and the rear surface may have a straight portion mixed with a curved portion. Figure 4In the embodiment of the present disclosure, the tensile stress of the display panel 200 disposed under the cover member 100 is 29.6 MPa, and the compressive stress thereof is -16.4 MPa, and Figure 5A Compared with the covering member 100, the tensile stress is reduced by 9.2% and the compressive stress is reduced by 8.9%, so that 5A to 5D This allows for minimal tensile and compressive stresses.

[0126] exist Figure 5E In an embodiment of the present disclosure, when the top surface has a circular (curved) shape and the rear surface has a circular (curved) shape and a straight shape, the first curvature of the top surface and the second curvature of the rear surface can be different or the same depending on the position along the top surface and the bottom surface. Accordingly, the thickness of the covering member changes from the flat portion to the distal end of the covering member. For example, the thickness increases from the flat portion to the middle portion of the covering member, while decreasing from the middle portion to the light-shielding portion of each corner portion.

[0127] The shape of the rear surface in the corner region of the cover member 100 is not limited thereto, and various rear surface shapes may be applied so that the display panel 200 has low tensile stress and compressive stress.

[0128] Furthermore, in order to prevent folding of the corner region of the display panel 200 , in addition to changing the shape of the rear surface of the cover member 100 , the shape of the distal end (or one side) of the connection member 300 may be changed.

[0129] Figure 6A 、 Figure 6B and Figure 6C yes Figure 1 1 is an enlarged plan view of a region 'A' in FIG. 1 , and is a plan view illustrating a connection member according to another embodiment of the present disclosure.

[0130] The connection member 300 may be disposed between the display panel 200 and the cover member 100 , and may connect (or fix or attach) the display panel 200 and the cover member 100 .

[0131] The connecting member 300 may be formed to be smaller than the display panel 200 and the cover member 100. The connecting member 300 may be formed of an adhesive member having high viscosity, so that when vertical compressive stress is applied between the connecting member 300 and the display panel 200, the connecting member 300 may have lateral deformation and protrude outside the display panel 200. In addition, the protruding connecting member 300 may flow downward to the side surface of the display panel 200, thereby causing defects in appearance and function. Therefore, the connecting member 300 needs to be formed to be smaller than the display panel 200 and the cover member 100 to avoid or reduce the possibility of downward flow and defects in appearance and function.

[0132] When the corner area of ​​the connecting member 300 corresponding to the corner area of ​​the display panel 200 is formed to be smaller than the display panel 200, since a portion of the distal end (or one side) of the corner area of ​​the display panel 200 cannot be fixed by the connecting member 300, it may bend due to its own weight, so that a curvature radius of the display panel 200 smaller than the curvature radius of the rear surface of the covering member 100 may be applied.

[0133] When the display panel 200 is bent due to its own weight, the compressive stress and tensile stress applied thereto are smaller than the tensile stress and compressive stress at which folding of the display panel 200 occurs, and the display panel 200 may be bent at a level at which no folding occurs.

[0134] However, when the connection member 300 is provided to be spaced apart from the distal end (or one side or one portion) of the display panel 200 by a predetermined length or more, the display panel 200 cannot be fixed to the cover member 100 and may slowly detach therefrom. In addition, when the connection member 300 is provided to be spaced apart from the distal end (or one side or one portion) of the display panel 200 by a predetermined length or less, the display panel 200 is fixed to the connection member 300 without being bent by its own weight, and the degree of bending can be small.

[0135] Therefore, for the connection member 300 , it is necessary to accurately configure a distance spaced from a distal end (or one side or one portion) of the display panel 200 in consideration of the attaching strength of the display panel 200 and sagging due to its own weight.

[0136] According to an embodiment of the present disclosure, a display device capable of bending the display panel 200 while preventing folding of corner areas of the display panel 200 from occurring or allowing folding to be viewed can be provided by changing the shape of the connection member 300 rather than changing the arrangement area of ​​the connection member 300.

[0137] Reference Figure 6A , when the distal end (or one side or one portion) of the corner area of ​​the connecting member 300 corresponding to the corner area of ​​the display panel 200 is formed to have a protrusion 300a and a recess 300b, the bending of the display panel 200 can be obtained due to its own weight without folding the display panel 200.

[0138] The recessed portion 300b of the connection member 300 may be an area where the connection member 300 is not formed and may not function as the connection member 300. The protrusion 300a may be provided between the recessed portions 300b and have a predetermined width and length and may function as the connection member 300.

[0139] The display panel 200 may be fixed to the cover member 100 in the protrusion 300a of the connection member 300, or may sag to a certain extent due to the viscosity of the protrusion 300a and the weight of the display panel 200. In addition, since sagging of the display panel 200 due to its own weight may occur in the recessed portion 300b of the connection member 300, overall bending may occur in the corner area of ​​the display panel 200.

[0140] Accordingly, with respect to the corner region of the cover member 100 , the display panel 200 having a smaller curvature radius than that of the rear surface of the cover member 100 may be formed.

[0141] The protrusion 300 a and the recess 300 b of the connection member 300 may be formed in a quadrangular (or rectangular) shape, and when the depth and width of the recess 300 b are adjusted, bending of the display panel 200 due to its own weight may be adjustable.

[0142] The protrusion 300a and the recess 300b of the connecting member 300 are formed in the non-display area NA of the display panel 200, and even when a slight wrinkle or fold occurs at the far end (or one side or one portion) of the display panel 200, they are covered by the light shielding portion 110 of the covering member 100 and therefore cannot be visually recognized by the user.

[0143] In addition, with respect to the corner area of ​​the cover member 100, by forming the curvature radius of the rear surface of the cover member 100 to be small, even when folding occurs in the display panel 200, the display panel 200 does not fold or the degree of folding can be reduced due to the recessed portion 300b of the connecting member 300. For example, even if folding occurs at the far end (or one side or one portion) of the display panel 200, the display panel 200 is not fixed in the recessed portion 300b of the connecting member 300 and is unfolded due to the thickness of the recessed portion 300b, thereby reducing the degree of folding.

[0144] In addition, the folding of the display panel 200 may be limited to the recessed portion 300 b , and the folded portion is covered by the light shielding portion 110 of the cover member 100 , and thus may not be visually recognized by the user.

[0145] The protrusion 300a and the recess 300b of the connection member 300 may be configured in various shapes taking into account the degree of folding and the fixing force of the display panel 200. For example, the protrusion 300a and the recess 300b of the connection member 300 may be configured in the form of at least one of a square wave, a sine wave, and a sawtooth wave among the various shapes.

[0146] Figure 6B3 is a view illustrating a protrusion 300 a and a recess 300 b formed in a wavy curve shape with respect to a distal end (or one side or one portion) of a corner region of a connection member 300 .

[0147] The protrusion 300a and the recess 300b may be formed in a wavy curve shape according to the folded or wrinkled shape of the distal end (or one side or one portion) of the display panel 200. The wavy curve shape has a larger recess 300b than the quadrilateral shape, and since the folded or wrinkled portion of the distal end (or one side or one portion) of the display panel 200 is not fixed to the connecting member 300, it is not fixed to the connecting member 300. Figure 6A In comparison, the degree of folding or pleating of the display panel 200 may be reduced.

[0148] In addition, the folding of the display panel 200 may be limited to the recessed portion 300 b , and the folded portion is covered by the light shielding portion 110 of the cover member 100 , and thus may not be visually recognized by the user.

[0149] exist Figure 6C , with respect to a distal end (or one side or one portion) of a corner region of the connection member 300, the protrusion 300a is formed in a triangle to minimize its area, and the recess 300b may be maximized in area by having a trapezoidal shape.

[0150] In the embodiment of the present disclosure, regarding the corner area of ​​the cover member 100, when the curvature radius of the rear surface is formed to be small, the curvature of the display panel 200 increases, and its folding portion can also be increased. Therefore, by preventing the folding portion of the display panel 200 from being fixed, the tensile stress and compressive stress of the distal end (or one side or one portion) of the display panel 200 are reduced, thereby reducing the tensile stress and compressive stress of the distal end (or one side or one portion) of the display panel 200. Figure 6B In comparison, the degree of folding or wrinkling of the display panel 200 can be further reduced.

[0151] In addition, the folding of the display panel 200 may be limited to the recessed portion 300 b , and the folded portion is covered by the light shielding portion 110 of the cover member 100 , and thus may not be visually recognized by the user.

[0152] Hereinafter, a display device according to an embodiment of the present disclosure will be described.

[0153] A display device according to an embodiment of the present disclosure may include: a display panel configured to display an image; and a covering member disposed on the display panel and configured to protect the display panel, wherein the display panel and the covering member may include a first bent portion in which a side area is bent and a second bent portion in which a corner area is bent, and the thickness of the corner area of ​​the covering member may be formed to be thicker than the thickness of the side area of ​​the covering member.

[0154] According to some embodiments of the present disclosure, a cross-section of the second curved portion of the cover member may have a circular shape at a top surface and a straight shape at a rear surface.

[0155] According to some embodiments of the present disclosure, a cross-section of the second curved portion of the cover member may have a circular shape at a top surface and a concave or convex shape at a rear surface.

[0156] According to some embodiments of the present disclosure, a cross-section of the second curved portion of the cover member may have a circular shape on a top surface and a mixed shape of a straight portion and a curved portion on a rear surface.

[0157] According to some embodiments of the present disclosure, a connecting member may be further included, the connecting member being disposed between the display panel and the cover member and configured to connect the display panel and the cover member, wherein the connecting member may be smaller than the display panel and the cover member.

[0158] According to some embodiments of the present disclosure, one side portion of a corner region of a connection member may have a protrusion and a recess.

[0159] According to some embodiments of the present disclosure, the protrusion or the recess may have at least one of a quadrangular shape, a triangular shape, and a curved shape.

[0160] According to some embodiments of the present disclosure, the first curved portion and the second curved portion may be continuously connected and integrally provided.

[0161] According to another embodiment of the present disclosure, a display device may include: a display panel, which is configured to display an image; a covering member, which is arranged on the display panel and configured to protect the display panel; and a connecting member, which is arranged between the display panel and the covering member, wherein the display panel and the covering member may include a first bent portion in which a side area is bent and a second bent portion in which a corner area is bent, wherein one side of the corner area of ​​the connecting member may have a protrusion and a recessed portion.

[0162] According to another embodiment of the present disclosure, a display device may include: a display panel, which is configured to display an image; a covering member, which is configured to protect the display panel and has a flat portion at a central area of ​​the covering member and a plurality of straight portions and a plurality of corner portions at the periphery of the covering member; and a connecting member, which is between the display panel and the covering member, wherein the plurality of straight portions and the plurality of corner portions include a curved portion that curves toward the interior of the display device, wherein the covering member has a top surface facing the outside of the display device and a rear surface facing the inside of the display device, wherein the top surface of the covering member at the plurality of corner portions has a first curvature, and the rear surface of the covering member at the plurality of corner portions has a second curvature, and wherein a distal end of the connecting member is not aligned with the distal ends of the covering member and the display panel at the plurality of corner portions.

[0163] According to some embodiments of the present disclosure, the second curvature may be different from the first curvature.

[0164] According to some embodiments of the present disclosure, the second curvature may include a portion having zero curvature.

[0165] According to some embodiments of the present disclosure, the first curvature may be greater than the second curvature.

[0166] According to some embodiments of the present disclosure, the first curvature and the second curvature may be the same.

[0167] According to some embodiments of the present disclosure, the first curvature may be convex toward the outside of the display device, and the second curvature may be convex toward the inside of the display device.

[0168] According to some embodiments of the present disclosure, the thickness of the plurality of corner portions may be different from the thickness of the flat portion of the covering member.

[0169] According to some embodiments of the present disclosure, a thickness of the plurality of corner portions may be greater than a thickness of the flat portion of the cover member.

[0170] According to some embodiments of the present disclosure, a thickness of the plurality of corner portions may be greater than a thickness of the plurality of straight portions of the covering member.

[0171] According to some embodiments of the present disclosure, the corner portion may include a shading portion at the distal end of the covering member at each corner portion and an intermediate portion between the distal end and the flat portion of the covering member, and the thickness of the shading portion may be different from the thickness of the intermediate portion of each corner portion of the covering member.

[0172] According to some embodiments of the present disclosure, the corner portion may include a shading portion at the distal end of the covering member at each corner portion and an intermediate portion between the distal end and the flat portion of the covering member, and the thickness of the covering member may change from the flat portion to the intermediate portion, and from the intermediate portion to the shading portion of each corner portion.

[0173] According to some embodiments of the present disclosure, the connection member may have a corner area, and one side of the corner area of ​​the connection member may have protrusions and recesses in the form of at least one of square waves, sine waves, and sawtooth waves.

[0174] According to another embodiment of the present invention, a display device may include: a display panel, which is configured to display an image; and a covering member, which is located on the display panel and is configured to protect the display panel, wherein the covering member includes a plurality of first bent portions and a plurality of second bent portions, and the plurality of second bent portions are respectively located at corners of the covering member, wherein the thickness of the second bent portions may be different from the thickness of the plurality of first bent portions.

[0175] According to some embodiments of the present disclosure, the thickness of the second bent portion may be greater than the thickness of the plurality of first bent portions.

[0176] Although the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, the present disclosure is not limited thereto and may be implemented in many different forms without departing from the technical concept of the present disclosure. Therefore, the embodiments of the present disclosure are provided for illustrative purposes only and are not intended to limit the technical concept of the present disclosure, and the scope of the technical concept of the present disclosure is not limited thereto. Therefore, it should be understood that the above-mentioned embodiments are illustrative in all aspects and do not limit the present disclosure. The scope of protection of the present disclosure should be interpreted with respect to the attached claims, and all technical concepts within their equivalent scope should be understood to fall within the scope of the present disclosure.

[0177] CROSS-REFERENCE TO RELATED APPLICATIONS

[0178] This application claims priority to Korean Patent Application No. 10-2021-0189139 filed in Korea on December 28, 2021, the entire contents of which are hereby expressly incorporated by reference into this application.

Claims

1. A display device, comprising: a display panel configured to display an image; a covering member located on the display panel and configured to protect the display panel; as well as a connecting member located between the display panel and the cover member and configured to connect the display panel and the cover member, wherein the display panel and the cover member each include a first curved portion in which a side area is curved and a second curved portion in which a corner area is curved, wherein the thickness of the corner region of the covering member is different from the thickness of the side region of the covering member, wherein the connecting member has a corner region, and one side of the corner region of the connecting member has a protrusion and a recess, and The protrusion protrudes from the recess in a direction intersecting with the thickness direction.

2. The display device according to claim 1, wherein When viewed in cross section, the second curved portion of the cover member includes a top surface and a rear surface, and the top surface has a circular shape and the rear surface has a straight shape.

3. The display device according to claim 1, wherein When viewed in cross section, the second curved portion of the cover member includes a top surface and a rear surface, and the top surface has a circular shape and the rear surface has at least one of a concave shape and a convex shape. The display device according to claim 1 , wherein: When viewed in cross section, the second curved portion of the cover member includes a top surface and a rear surface, and the top surface has a circular shape and the rear surface has a mixed shape including a straight portion and a curved portion.

5. The display device according to claim 1, wherein The connection member has a size smaller than that of the display panel and the cover member. The display device according to claim 1 , wherein: The protrusion or the recess has at least one of a quadrangular shape, a triangular shape, and a curved shape.

7. The display device according to claim 1, wherein The first curved portion and the second curved portion are continuously connected and integrally provided.

8. The display device according to claim 1, wherein The thickness of the corner region of the covering member is thicker than the thickness of the side region of the covering member.

9. The display device according to claim 1, wherein The curvature of the corner area is smaller than the curvature of the side area.

10. A display device, comprising: a display panel configured to display an image; a covering member located on the display panel and configured to protect the display panel; as well as a connecting member located between the display panel and the covering member, wherein the display panel and the cover member each include a first curved portion in which a side area is curved and a second curved portion in which a corner area is curved, wherein one side portion of the corner region of the connecting member has a protrusion and a recess, and The protrusion protrudes from the recess in a direction intersecting with the thickness direction.

11. The display device according to claim 10, wherein The protrusion or the recess has at least one of a quadrangular shape, a triangular shape, and a curved shape.

12. A display device, comprising: a display panel configured to display an image; a cover member configured to protect the display panel and having a flat portion at a central area of ​​the cover member and a plurality of straight portions and a plurality of corner portions at a periphery of the cover member, wherein the plurality of straight portions and the plurality of corner portions include a curved portion curved toward an inner portion of the display device; and a connecting member located between the display panel and the covering member, wherein the cover member has a top surface facing the outside of the display device and a rear surface facing the inside of the display device, wherein the top surface of the cover member at the plurality of corner portions has a first curvature, and the rear surface of the cover member at the plurality of corner portions has a second curvature, wherein, at the plurality of corner portions, the distal end of the connecting member is not aligned with the distal end of the covering member and the distal end of the display panel, wherein the connecting member has a corner region, and one side of the corner region of the connecting member has a protrusion and a recess, and The protrusion protrudes from the recess in a direction intersecting with the thickness direction.

13. The display device according to claim 12, wherein The second curvature is different from the first curvature.

14. The display device according to claim 13, wherein The second curvature includes a portion having zero curvature.

15. The display device according to claim 14, wherein The portion having zero curvature has a thickness greater than a thickness of the remaining portion of the rear surface of the cover member at the plurality of corner portions.

16. The display device according to claim 13, wherein The first curvature is greater than the second curvature.

17. The display device according to claim 12, wherein: The first curvature is the same as the second curvature.

18. The display device according to claim 12, wherein The top surface of the cover member protrudes toward the outside of the display device, and Wherein, the rear surface of the covering member protrudes toward the interior of the display device.

19. The display device according to claim 12, wherein The thickness of the plurality of corner portions is different from the thickness of the flat portion of the covering member.

20. The display device according to claim 19, wherein The plurality of corner portions have a thickness greater than a thickness of the flat portion of the covering member.

21. The display device according to claim 19, wherein The thickness of the plurality of corner portions is greater than the thickness of the plurality of straight portions of the covering member.

22. The display device according to claim 12, wherein Each corner portion includes a light shielding portion at a distal end of the covering member at each corner portion and an intermediate portion between the distal end and the flat portion of the covering member, and The light shielding portion has a thickness different from a thickness of a middle portion of each corner portion of the covering member.

23. The display device according to claim 12, wherein Each corner portion includes a light shielding portion at a distal end of the covering member at each corner portion and an intermediate portion between the distal end and the flat portion of the covering member, and The thickness of the covering member changes from the flat portion to the middle portion, and changes from the middle portion to the light shielding portion at each corner portion.

24. The display device according to claim 12, wherein The protrusions and the recesses are in the form of at least one of a square wave, a sine wave, and a sawtooth wave.

25. A display device, comprising: a display panel configured to display an image; a covering member located on the display panel and configured to protect the display panel; as well as a connecting member located between the display panel and the cover member and configured to connect the display panel and the cover member, The covering member includes a plurality of first curved portions and a plurality of second curved portions, wherein the plurality of second curved portions are respectively located at corners of the covering member. wherein the thickness of the second curved portion is different from the thickness of the plurality of first curved portions, wherein the connecting member has a corner region, and one side of the corner region of the connecting member has a protrusion and a recess, and The protrusion protrudes from the recess in a direction intersecting with the thickness direction.

26. The display device according to claim 25, wherein The second bent portion has a thickness greater than that of the plurality of first bent portions.

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