Display device and method of manufacturing the same

Abstract

The present application relates to a display device and a method for manufacturing the display device, wherein the display device comprises: a display panel, comprising a display area for displaying an image and a non-display area arranged outside the display area; a cover window arranged on a front surface of the display panel; and a cover panel arranged on a back surface of the display panel, wherein the cover panel comprises a cut-out portion recessed from an outer edge of the cover panel toward a center of the cover panel.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Korean Patent Application No. 10-2018-0003527, filed on January 10, 2018, which is hereby incorporated by reference in its entirety. Technical Field

[0003] Embodiments of the present invention relate to a display device and a method of manufacturing the display device. Background Art

[0004] With the development of multimedia, display devices are becoming more and more important. Therefore, various types of display devices such as liquid crystal displays and organic light emitting displays are being used.

[0005] Among these display devices, liquid crystal display is one of the most widely used flat panel display types. The liquid crystal display includes a pair of substrates with field generating electrodes (such as pixel electrodes and common electrodes) and a liquid crystal layer between the two substrates. In the liquid crystal display, a voltage is applied to the field generating electrodes to generate an electric field in the liquid crystal layer. The electric field determines the orientation of the liquid crystal molecules in the liquid crystal layer and controls the polarization of the incident light. Therefore, an image is displayed by the liquid crystal display.

[0006] In addition, an organic light emitting display uses an organic light emitting diode to display images, wherein the organic light emitting diode generates light through the recombination of electrons and holes. Such an organic light emitting display has the advantages of relatively fast response speed, high brightness, wide viewing angle, and low power consumption.

[0007] These display devices have a wide range of applications, and are used not only in televisions (TVs) and mobile devices but also in wearable devices such as smart watches. Summary of the invention

[0008] One or more embodiments of the present invention provide a display device including a cover panel uniformly attached to a display panel.

[0009] One or more embodiments of the present invention also provide a method of manufacturing a display device for preventing wrinkles from being formed in a cover panel.

[0010] However, the embodiments of the present invention are not limited to the embodiments described herein. The above and other features of the present invention will become more apparent to those skilled in the art to which the present invention belongs by referring to the detailed description of the invention given below.

[0011] According to an embodiment of the present invention, a display device is provided, which includes: a display panel, including a display area for displaying an image and a non-display area arranged outside the display area; a cover window, arranged on the front surface of the display panel; and a cover panel, arranged on the back surface of the display panel, wherein the cover panel includes a cut-out portion, which is recessed from the outer edge of the cover panel toward the center of the cover panel.

[0012] In addition, the cutout portion may include a first side, a second side, and a contact point, wherein an end of the first side and an end of the second side may be spaced apart from each other, and the other end of the first side and the other end of the second side may intersect at the contact point.

[0013] Furthermore, the contact point and the center may be spaced apart from each other.

[0014] Furthermore, the contact point and the center may be the same.

[0015] In addition, the display device may further include a printed circuit board connected to the display panel.

[0016] Furthermore, a portion of the printed circuit board may overlap with the back surface of the cover panel.

[0017] In addition, the cover panel may include an adhesive layer, a buffer layer, and a dehumidification layer which are sequentially stacked.

[0018] Furthermore, a cut-out portion is defined in each of the adhesive layer, the buffer layer, and the dehumidification layer, and the cut-out portions of the adhesive layer, the buffer layer, and the dehumidification layer overlap with each other to define the cut-out portion of the cover panel.

[0019] Furthermore, a plurality of cutout portions may be provided.

[0020] In addition, the cutout portion may include a first cutout portion and a second cutout portion spaced apart from each other along an outer edge of the cover panel.

[0021] In addition, the non-display area may include a first area and a second area protruding from the first area and narrower than the first area.

[0022] Furthermore, the cover panel may partially cover the second area.

[0023] Furthermore, the display device may further include a printed circuit board connected to the display panel, wherein the printed circuit board may be connected to the display panel at a connection portion formed in the second region, and the cover panel may partially overlap the connection portion.

[0024] In addition, a first point and a second point demarcating the first area and the second area may be defined, and a first reference line connecting the first point and the center and a second reference line connecting the second point and the center may be defined, wherein the first cut-off portion may be set on the first reference line and the second cut-off portion may be set on the second reference line.

[0025] Furthermore, the first cut-away portion may include a first contact point and the second cut-away portion may include a second contact point, wherein the first contact point may be disposed on the first reference line and the second contact point may be disposed on the second reference line.

[0026] Furthermore, the display area may have a circular shape.

[0027] Furthermore, the cutout portion may have a fan-shaped shape.

[0028] According to another embodiment of the present invention, a method for manufacturing a display device is provided. The method may include: preparing a display panel and a cover window attached to the front surface of the display panel; arranging a cover panel on the back surface of the display panel, the cover panel including a cutout portion recessed from an outer edge of the cover panel toward a center of the cover panel; and pressing the cover panel.

[0029] Furthermore, pressing the cover panel may include pressing the cover panel by rotating a pressure roller in a clockwise direction or a counterclockwise direction.

[0030] Furthermore, pressing the cover panel may include pressing the cover panel using a pressure pad having an upper surface convex upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] These and / or other features will become more apparent and more easily understood through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0032] Figure 1 is an exploded perspective view of an embodiment of a display device according to the present invention;

[0033] Figure 2 yes Figure 1 A cross-sectional view of a display device;

[0034] Figure 3 yes Figure 1 A top plan view of an embodiment of a cover panel of a display device;

[0035] Figure 4 yes Figure 1 A partial cross-sectional view of a display device;

[0036] Figure 5 is a top plan view of a modified embodiment of a cover panel of a display device according to the present invention;

[0037] Figure 6a is an exploded perspective view of another embodiment of a cover panel of a display device according to the present invention;

[0038] Figure 6b yes Figure 6a a cross-sectional view of a cover panel;

[0039] Figure 7 is a top plan view of another modified embodiment of a cover panel of a display device according to the present invention;

[0040] Figure 8 is a top plan view of yet another modified embodiment of a cover panel of a display device according to the present invention;

[0041] Fig. 9 is a top plan view of yet another modified embodiment of a cover panel of a display device according to the present invention;

[0042] Fig.10 is a top plan view of still another modified embodiment of a display device according to the present invention;

[0043] Fig.11 is a perspective view showing an embodiment of a method of manufacturing a display device according to the present invention; and

[0044] Fig.12 is a perspective view showing another embodiment of a method of manufacturing a display device according to the present invention. DETAILED DESCRIPTION

[0045] The advantages and features of the present invention and methods for achieving the same will become apparent by reference to the exemplary embodiments that will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments disclosed below, but may be implemented in various forms. The contents defined in the specification, such as detailed structures and elements, are only specific details provided to help those of ordinary skill in the art to fully understand the present invention, and the present invention is limited only within the scope of the appended claims.

[0046] When an element is described as being associated with another element, such as being on another element or being located on a different layer or layer, this includes both the case where the element is directly on another element or layer and the case where the element is located on the other element through another layer or another element. Conversely, when an element is described as being associated with another element, such as being directly on another element or being directly on a different layer or layer, this means that the element is located on another element or another layer with no intervening elements or layers between them. Throughout the description of the present invention, the same reference numerals are used for the same elements throughout the drawings.

[0047] Although the terms "first", "second", etc. are used to describe different components, these components are not limited by these terms. These terms are only used to distinguish a component from other components. Therefore, in the following description, the first component may be the second component.

[0048] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to be limiting. As used herein, the singular forms "one", "an" and "said" are intended to include plural forms, including "at least one", unless otherwise explicitly stated in the content. "At least one" is not interpreted as limiting "one" or "one". "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more related listed items. It will be further understood that when used in this specification, the terms "comprises" and / or "comprising" or "includes" and / or "including" specify the presence of the features, regions, wholes, steps, operations, elements and / or components described, but do not exclude the presence or addition of one or more other features, regions, wholes, steps, operations, elements, components and / or combinations thereof.

[0049] In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation depicted in the accompanying drawings. For example, if the device in one of the drawings is turned over, the element described as being on the "lower" side of the other elements will be oriented on the "upper" side of the other elements. Therefore, the exemplary term "lower" can include both "lower" and "upper" orientations, depending on the specific orientation of the drawings. Similarly, if the device in one of the drawings is turned over, the element described as being on the "lower side" or "below" of the other elements will be oriented "above" the other elements. Therefore, the exemplary terms "lower side" or "below" can include both upper and lower orientations.

[0050] As used herein, "about" or "approximately" is inclusive of the stated value and means within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations, or within ±30%, 20%, 10%, or 5% of the stated value.

[0051] Unless otherwise defined, all terms (including technical and scientific terms) used in this article have the same meaning as those commonly understood by ordinary technicians in the field to which the present invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have a meaning consistent with their meaning in the context of the relevant field and / or this specification, and should not be understood in an idealized or overly formal sense unless so clearly defined in this article.

[0052] Exemplary embodiments are described herein with reference to cross-sectional views as schematic diagrams of idealized embodiments. As such, variations in the illustrated shapes, such as due to manufacturing techniques and / or tolerances, may be expected. Therefore, the exemplary embodiments described herein should not be interpreted as being limited to specific regional shapes as shown herein, but rather include deviations in shapes, such as those caused by manufacturing. For example, a region shown or described as flat may typically have rough and / or nonlinear features. In addition, the sharp angles shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the precise shapes of the regions, and are not intended to limit the scope of the claims set forth.

[0053] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0054] Figure 1 is an exploded perspective view of an embodiment of a display device according to the present invention.

[0055] Figure 2 yes Figure 1 A cross-sectional view of a display device. Figure 3 yes Figure 1 A top plan view of an embodiment of a cover panel for a display device. Figure 4 yes Figure 1 A partial cross-sectional view of a display device.

[0056] Reference Figures 1 to 4 According to an embodiment, a display device includes a display panel DP, a cover window CW and a cover panel CP, wherein the display panel DP includes a display area DA, the cover window CW is arranged on the front surface of the display panel DP, and the cover panel CP is arranged on the back surface of the display panel DP opposite to its front surface.

[0057] The display device and components thereof may be disposed in a plane defined by a first direction and a second direction that intersect each other. Figure 1 and Figure 3 The first direction and the second direction in the may be any two directions that intersect each other along the page. The thickness of the display device and its components may be taken in a third direction that is perpendicular to each of the first direction and the second direction. Figure 2 and Figure 4 In the embodiment, the thickness direction is a vertical direction, and the first direction and / or the second direction is a horizontal direction.

[0058] The display panel DP may display an image. The display panel DP may display an image using light. In an embodiment, the display panel DP may be a self-emissive display device such as an organic light emitting display including an organic light emitting diode that generates and emits light for displaying an image. The organic light emitting diode will be described in detail later. In another embodiment, the display panel DP may be a display panel that is not self-emissive and to which light is provided from the outside to display an image.

[0059] In an embodiment, the display panel DP may be a flexible display panel that may be bent, folded, or rolled. In other words, the curved display panel DP may be formed of a flat display panel that is bent, but is not limited thereto.

[0060] The display panel DP may include a display area DA and a non-display area NDA disposed outside the display area DA.

[0061] The display area DA may be an area where an image is displayed. As will be described in detail later, in an embodiment, a plurality of organic light emitting diodes may be disposed in the display area DA. The non-display area NDA may be an area where an image is not displayed.

[0062] In an embodiment, the display panel DP may be a display panel applied to a smart watch or a wearable device. Therefore, the display panel DP may have a three-dimensional shape suitable for a smart watch or a wearable device. In an embodiment, for example, the display area DA may have a circular planar shape. In other words, the planar shape of the display area DA may be circular.

[0063] However, the shape of the display area DA is not limited to the circular shape, and the display area DA may have a quadrangular planar shape or a planar shape including straight lines and curved lines.

[0064] In an embodiment, the display area DA may include pixels provided in plurality, wherein the plurality of pixels are used to display an image and / or emit light to display an image. Figure 4 The display panel DP is described below. In an embodiment, the display panel DP may include a first (base) substrate 110_2. The first substrate 110_2 may be an insulating substrate and may include glass, plastic, or the like.

[0065] The buffer layer 210 may be disposed on the front surface of the first substrate 110_2. The buffer layer 210 may reduce or effectively prevent moisture and oxygen from penetrating from the outside of the display panel DP through the first substrate 110_2. In addition, the buffer layer 210 may planarize the surface of the first substrate 110_2. In an embodiment, the buffer layer 210 may include silicon nitride (SiN x ) film, silicon oxide (SiO 2 ) films and silicon oxynitride (SiO x Ny When manufacturing a display device, the buffer layer 210 may be omitted according to the type of the first substrate 110_2 and / or process conditions.

[0066] A semiconductor layer including a semiconductor pattern ACT may be disposed on the buffer layer 210. The semiconductor layer will be described based on the semiconductor pattern ACT. In an embodiment, the semiconductor pattern ACT may include or may be made of one or a combination of two or more of polycrystalline silicon, single crystal silicon, low temperature polycrystalline silicon, amorphous silicon, and an oxide semiconductor. In an embodiment, the semiconductor pattern ACT may include a channel region ACTa that is not doped with impurities and a source region ACTb and a drain region ACTc that are each doped with impurities. The source region ACTb is located on a first side of the channel region ACTa and is electrically connected to a source electrode SE to be described later. The drain region ACTc is located on a second side of the channel region ACTa opposite to its first side and is electrically connected to a drain electrode DE to be described later.

[0067] The first insulating layer 220 may be disposed on the semiconductor layer including the semiconductor pattern ACT. In an embodiment, the first insulating layer 220 may be a gate insulating layer. The first insulating layer 220 may include or may be made of any one of the following or a combination of one or more thereof: silicon oxide (SiO x ) and silicon nitride (SiN x ) and organic insulating materials such as benzocyclobutene (BCB), acrylic materials and polyimide.

[0068] A gate conductor including a gate electrode GE may be disposed on the first insulating layer 220. The gate electrode GE may overlap the semiconductor pattern ACT. The gate conductor may include any one or more of an aluminum (Al)-based metal including an aluminum alloy, a silver (Ag)-based metal including a silver alloy, a copper (Cu)-based metal including a copper alloy, a molybdenum (Mo)-based metal including a molybdenum alloy, chromium (Cr), titanium (Ti), and tantalum (Ta). The gate conductor may also include a gate (signal) line connected to the gate electrode GE or a portion of the gate (signal) line constituting the gate electrode GE.

[0069] The second insulating layer 230 may be disposed on the gate conductor including the gate electrode GE. The second insulating layer 230 may include or be made of any one of the following or a combination of one or more thereof: silicon oxide (SiO x ) and silicon nitride (SiN x ) and organic insulating materials such as benzocyclobutene (BCB), acrylic materials and polyimide.

[0070] The data conductor including the source electrode SE and the drain electrode DE may be disposed on the second insulating layer 230. The source electrode SE and the drain electrode DE are disposed on the second insulating layer 230 to be spaced apart from each other. The data conductor may include one or more of a metal, an alloy, a metal nitride, a conductive metal oxide, and a transparent conductive material. In an embodiment, the data conductor may have a single film structure or a multi-film structure including one or more of the following: nickel (Ni), cobalt (Co), titanium (Ti), silver (Ag), copper (Cu), molybdenum (Mo), aluminum (Al), beryllium (Be), niobium (Nb), gold (Au), iron (Fe), selenium (Se), and tantalum (Ta). In addition, the source electrode SE and the drain electrode DE may include or be made of an alloy of any one of the above metals and one or more elements selected from the following: titanium (Ti), zirconium (Zr), tungsten (W), tantalum (Ta), niobium (Nb), platinum (Pt), hafnium (Hf), oxygen (O), and nitrogen (N). The data conductor may further include a data (signal) line connected to the source electrode SE and / or the drain electrode DE or a portion of the data (signal) line constitutes the source electrode SE and / or the drain electrode DE.

[0071] The semiconductor pattern ACT, the gate electrode GE, the source electrode SE, and the drain electrode DE described above constitute a switching element TR2 (eg, a thin film transistor). Figure 4 , the switching element TR2 is shown as a top gate type. However, the switching element TR2 is not limited to the top gate type. In other words, the switching element TR2 may be formed as a bottom gate type.

[0072] The planarization layer 240 may be disposed on the data conductor. The planarization layer 240 may eliminate the step difference formed by the layer below it, thereby improving the light emitting efficiency of the pixel electrode 250 and the organic light emitting layer 270 to be described later. In an embodiment, the planarization layer 240 may include an organic material. In an embodiment, for example, the planarization layer 240 may include any one or more of polyimide, polypropylene, and polysiloxane. In an embodiment, the planarization layer 240 may include an inorganic material or a combination of an inorganic material and an organic material. The first contact hole CNT1 may be defined in and / or by the planarization layer 240 to expose at least a portion of the drain electrode DE.

[0073] The pixel electrode 250 may be disposed on the planarization layer 240. At the first contact hole CNT1, the pixel electrode 250 may be electrically connected to the drain electrode DE exposed by the first contact hole CNT1. In other words, the pixel electrode 250 may be an anode as a hole injection electrode. When formed as an anode, the pixel electrode 250 may include a material having a relatively high work function so as to facilitate hole injection. In addition, the pixel electrode 250 may be a reflective electrode, a semi-reflective semi-transparent electrode, or a transparent electrode. In an embodiment, the pixel electrode 250 may include a reflective material. In an embodiment, the reflective material may include one or more of the following: silver (Ag), magnesium (Mg), chromium (Cr), gold (Au), platinum (Pt), nickel (Ni), copper (Cu), tungsten (W), aluminum (Al), aluminum-lithium (Al-Li), magnesium-indium (Mg-In) and magnesium-silver (Mg-Ag).

[0074] In an implementation, the pixel electrode 250 may be formed as a single film. Alternatively, the pixel electrode 250 may be formed as a multi-layer film in which two or more materials are stacked.

[0075] In an embodiment, when formed as a multilayer film, the pixel electrode 250 may include a reflective film and a transparent electrode or a semi-transparent electrode disposed on the reflective film. In an embodiment, the pixel electrode 250 may include a reflective film and a transparent electrode or a semi-transparent electrode disposed under the reflective film. In an embodiment, for example, the pixel electrode 250 may have a three-layer structure of indium tin oxide (ITO) / silver / ITO.

[0076] In this article, the transparent electrode or the semi-transparent electrode may include or may be made of one or more of the following: indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In 2 O 3 ), indium gallium oxide (IGO) and aluminum zinc oxide (AZO).

[0077] The pixel defining layer 260 may be disposed on the pixel electrode 250. The pixel defining layer 260 includes an opening that at least partially exposes the pixel electrode 250. The pixel defining layer 260 may include an organic material or an inorganic material. In an embodiment, the pixel defining layer 260 may include a material such as a photoresist, a polyimide resin, an acrylic resin, a silicon compound, or a polyacrylic resin.

[0078] The organic light emitting layer 270 may be disposed on the pixel electrode 250 and the pixel defining layer 260. More specifically, the organic light emitting layer 270 may be disposed at a region of the pixel electrode 250 exposed by the opening of the pixel defining layer 260. In an embodiment, the organic light emitting layer 270 may at least partially cover a sidewall of the pixel defining layer 260 at the opening of the pixel defining layer 260.

[0079] In an embodiment, the organic light emitting layer 270 may generate and / or emit light having one of red, blue, and green. In an embodiment, the organic light emitting layer 270 may generate and / or emit white light or emit light having one of cyan, magenta, and yellow. When the organic light emitting layer 270 emits white light, the organic light emitting layer 270 may include a white light emitting material or may include a stacked structure of a red light emitting layer, a green light emitting layer, and a blue light emitting layer.

[0080] The common electrode 280 may be disposed on the organic light emitting layer 270 and the pixel defining layer 260. In an embodiment, the common electrode 280 may be disposed or formed on the entire surface of the organic light emitting layer 270 and the pixel defining layer 260, so as to be shared by each of these layers and more than one pixel in the display area DA. In an embodiment, the common electrode 280 may be a cathode. In an embodiment, the common electrode 280 may include one or more of Li, Ca, LiF / Ca, LiF / Al, Al, Ag, and Mg. In addition, the common electrode 280 may include or may be made of a material having a relatively low work function. In an embodiment, the common electrode 280 may be a transparent electrode or a semi-transparent electrode including any one or more of the following: indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In 2 O 3 ), indium gallium oxide (IGO) and aluminum zinc oxide (AZO).

[0081] The pixel electrode 250, the organic light emitting layer 270, and the common electrode 280 described above may together constitute an organic light emitting diode OLED. However, the organic light emitting diode OLED is not limited to this configuration and may be a multilayer structure further including a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL).

[0082] The encapsulation layer 300 may be formed on the common electrode 280 disposed on the first substrate 110_2 .

[0083] The encapsulation layer 300 may reduce or effectively prevent moisture and air that may be introduced from the outside of the display panel DP from penetrating into the organic light emitting diode OLED. In an embodiment, the encapsulation layer 300 may include a first inorganic layer 301 , an organic layer 302 , and a second inorganic layer 303 .

[0084] The first inorganic layer 301 may be disposed on the common electrode 280 and may be closest to the common electrode 280. The first inorganic layer 301 may include silicon oxide (SiO x ), silicon nitride (SiN x ) and silicon oxynitride (SiON x) any one or more.

[0085] The organic layer 302 may be disposed on the first inorganic layer 301. The organic layer 302 may include any one or more of epoxy, acrylic, and urethane acrylic. The organic layer 302 may planarize the step difference formed by the pixel defining layer 260.

[0086] The second inorganic layer 303 may be disposed on the organic layer 302. The second inorganic layer 303 may include silicon oxide (SiO x ), silicon nitride (SiN x ) and silicon oxynitride (SiON x ) any one or more.

[0087] exist Figure 4 , each of the first inorganic layer 301, the organic layer 302, and the second inorganic layer 303 is shown as a single layer. However, the embodiment is not limited to this case. In other words, at least one of the first inorganic layer 301, the organic layer 302, and the second inorganic layer 303 may be formed into a multilayer structure.

[0088] In an embodiment, the encapsulation layer 300 may include a hexamethyldisiloxane (HMDSO) layer. More specifically, the encapsulation layer 300 may include a first inorganic layer 301, a second inorganic layer 303, and an HMDSO layer disposed between the first inorganic layer 301 and the second inorganic layer 303. In other words, the organic layer 302 may be replaced with the HMDSO layer.

[0089] In an embodiment of a method of forming a display device, the HMDSO layer may be formed in the same chamber as the chamber in which the first inorganic layer 301 is formed after forming the first inorganic layer 301. Therefore, the process of forming the encapsulation layer 300 may be simplified. In addition, the encapsulation layer 300 may have sufficient flexibility by including the HMDSO layer that can absorb stress.

[0090] Although the case where the encapsulation layer 300 is disposed or formed on the common electrode 280 has been described above, the embodiments are not limited to this case.

[0091] In an implementation, a second substrate (not shown) facing the first substrate 110_2 may be disposed on the common electrode 280 .

[0092] The layers from the first substrate 110_2 to the encapsulation layer 300 (or the second substrate, if a second substrate is provided) may be collectively referred to as a display substrate and / or a display panel.

[0093] Refer again Figure 1The non-display area NDA may be disposed outside the display area DA. Various (conductive) signal lines may be disposed in the non-display area NDA through which power, data, control and / or driving signals required for the display area DA to display an image are transmitted.

[0094] The connection portion 500 may be disposed in the non-display area NDA at one side thereof. The connection portion 500 may be provided therein with pads provided in plural and electrically connected to various signal lines.

[0095] In an implementation, the connection portion 500 may be disposed on the rear surface of the display panel DP. As described above, the organic light emitting diode OLED may be disposed on the front surface of the display panel DP.

[0096] In order to electrically connect the organic light emitting diodes OLED and the signal lines each disposed on the front surface of the display panel DP to the pads disposed on the back surface of the display panel DP, the display panel DP may include a plurality of through holes H connecting the back surface of the display panel DP with the front surface. In other words, the inner areas of the through holes H may be exposed at the back surface and the front surface of the display panel DP.

[0097] In other words, the components at the front surface of the display panel DP and the back surface of the display panel DP may be electrically connected to each other through the through hole H. To this end, the through hole H may be filled with a conductive material. In other words, the components at the front surface of the display panel DP and the back surface of the display panel DP may be electrically connected to each other through the conductive material at the through hole H.

[0098] In an embodiment, the non-display area NDA may include or be divided into a first area A1 surrounding the display area DA (e.g., disposed at all sides of the display area DA) and a second area A2 protruding from the first area A1. The second area A2 may protrude outward from the first area A1. The second area A2 may be narrower than the first area A1. Figure 1 For example, the non-display area NDA surrounding the display area DA includes a first area A1 directly extending from the display area DA to define a maximum dimension of the non-display area NDA in a first direction (e.g., a direction parallel to the direction in which the through holes H are arranged). The second area A2 protruding from the first area A1 allows the first area A1 to be interposed between the second area A2 and the display area DA, so that the maximum dimension of the second area A2 in the first direction (e.g., a direction parallel to the direction in which the through holes H are arranged) is smaller than the maximum dimension of the first area A1.

[0099] In an implementation, the connection portion 500 may be formed at the second area A2.

[0100] The display apparatus according to the embodiment may further include a flexible printed circuit board FPC.

[0101] The flexible printed circuit board FPC may generate signals required for driving the display area DA and transmit the generated signals to the display area DA.

[0102] To this end, a driver integrated circuit IC for generating a driving signal may be provided on the flexible printed circuit board FPC.

[0103] The flexible printed circuit board FPC may have flexibility. Therefore, the flexible printed circuit board FPC may be bent and folded. In other words, the deformed flexible printed circuit board FPC may be formed by a bent flat flexible printed circuit board, but is not limited thereto.

[0104] In an embodiment, the planar shape of the flexible printed circuit board FPC may include a circular shape. In an embodiment, the flexible printed circuit board FPC may be folded back, for example, along a layer of the display device to overlap the display area DA in a top plan view.

[0105] The flexible printed circuit board FPC and the connection portion 500 may be electrically connected to each other. In an embodiment, the flexible printed circuit board FPC and the connection portion 500 may be electrically connected with an anisotropic conductive film (ACF) interposed therebetween.

[0106] Reference Figure 1 and Figure 2 , the cover window CW may be disposed on the front surface (eg, display surface) of the display panel DP, where an image is displayed at the front surface. The cover window CW may define the front surface of the entire display device at its viewing side. Figure 1 and Figure 3 Each may represent a flat form of each of the display panel DP, the cover window CW, the cover panel CP, and the flexible printed circuit board FPC bent or deformed to form a bent form thereof.

[0107] The cover window CW may cover the front surface of the display panel DP. In an implementation, the cover window CW may include or may be made of glass or plastic.

[0108] In an embodiment, a planar shape of the cover window CW may be a circle. In other words, the cover window CW may have a circular shape corresponding to the circular shape of the display panel DP.

[0109] However, the shape of the cover window CW is not limited to the circular shape. When the display panel DP has various shapes as described above, the cover window CW also has various shapes corresponding to the shape of the display panel DP.

[0110] like Figure 2 As shown in , the cover window CW may include a curved surface. In other words, in the assembled display device, the cover window CW may have an upwardly convex parabolic shape in cross section.

[0111] In other words, the cover window CW may be shaped like a dome convex upward.

[0112] An image generated at the display area DA of the display panel DP may be provided to a user through a cover window CW at a viewing side or front side of the display device.

[0113] Refer again Figure 2 When the cover window CW has an upwardly convex arch shape, the display panel DP may be bent along the shape of the inner curved surface of the cover window CW so that the display panel DP has a curved surface. In other words, the curved display panel DP may be formed of a flat display panel bent along the curved cover window CW, but is not limited thereto.

[0114] In other words, since the display panel DP and the cover window CW are attached to each other, the display panel DP may be at least partially bent to contact the cover window CW.

[0115] Reference Figure 1 and Figure 2 , the cover panel CP may be disposed on the rear surface of the display panel DP.

[0116] The cover panel CP may be attached to the back surface of the display panel DP and may reduce impact applied to the display panel DP. In addition, the cover panel CP may dissipate heat generated in the display panel DP and / or may block moisture from entering the display panel DP.

[0117] In an embodiment, the planar shape of the cover panel CP may be a circle. When the display panel DP has a circular shape as described above, the cover panel CP may also have a circular shape to cover the display panel DP.

[0118] In an embodiment, the cover panel CP may include a cutout CO where there is no material of the cover panel CP. The cutout CO may be otherwise referred to as a notch or recess in the cover panel CP. The cutout CO may be defined in a flat cover panel that is flexed or bent to form a curved cover panel CP.

[0119] The cutout portion CO may include a portion of the cover panel CP removed extending from an outer circumference (eg, outer edge) of the cover panel CP toward the inside of the cover panel CP. Thus, the cutout portion CO may have a fan shape or a wedge shape in a top plan view.

[0120] Now refer to Figure 3 The cutout portion CO is described in detail.

[0121] In an embodiment, the cut-away portion CO may include or may be defined by a first side 510, a second side 520, and a contact point 400 where the first side 510 and the second side 520 intersect each other inside the cover panel CP.

[0122] The first side 510 and the second side 520 may extend from an outer periphery (eg, an outer edge) of the cover panel CP toward a center C of the cover panel CP. The center C of the cover panel CP coincides with a center of a flat cover panel forming the cover panel CP.

[0123] Herein, the center C of the cover panel CP may refer to the geometric center of the cover panel CP. If the cover panel CP has a circular shape, the center C may be the center of the circle. The periphery of the display panel DP at the boundary between the first area A1 and the second area A2 may extend as a curve continuing from the outer edge of the first area A1, but is not limited thereto.

[0124] The outer end of the first side 510 and the outer end of the second side 520 at the outer edge of the cover panel CP may be spaced apart from each other. The inner end of the first side 510 opposite to its outer end and the inner end of the second side 520 opposite to its outer end may contact each other. In other words, at the contact point 400, the inner end of the first side 510 and the inner end of the second side 520 may intersect each other.

[0125] In an embodiment, the contact point 400 may be spaced apart from the center C in a top plan view. The curved cover panel CP may be formed by a flat cover panel that is bent, but is not limited thereto. When the cover panel CP set in a flat state is attached to the display panel DP having a curved surface, wrinkles may be formed due to geometric mismatch. These wrinkles are particularly noticeable near the center C and the outer edge of the cover panel CP.

[0126] The cutout portion CO defined or formed in the flat cover panel that is bent to form the cover panel CP can compensate for the geometric mismatch to some extent. In other words, since the cutout portion CO eliminates some stress that forms wrinkles, the formation of wrinkles can be reduced or effectively prevented.

[0127] Refer again Figure 2 The cover panel CP may be attached to the back surface of the display panel DP. When the display panel DP has a curved surface, the cover panel CP may be bent along the shape of the inner curved surface of the display panel DP so that the cover panel CP has a curved surface.

[0128] Wrinkles may be formed in the process of closely attaching the cover panel CP to the display panel DP. However, as described above, the cutout portion CO defined or formed in the cover panel CP may reduce or effectively prevent the formation of wrinkles.

[0129] In an implementation, a flexible printed circuit board FPC may be disposed on the back surface of the cover panel CP.

[0130] In an embodiment, the flexible printed circuit board FPC may be folded back along the thickness of the cover panel CP while being connected to the display panel DP. Therefore, the cover panel CP may be disposed between a portion of the flexible printed circuit board FPC and the display panel DP along the thickness direction of the display device.

[0131] In other words, the front surface of the cover panel CP may be attached to (the back surface of) the display panel DP, and the back surface of the cover panel CP may be attached to (the front surface of) the flexible printed circuit board FPC.

[0132] Hereinafter, a display device according to other modified embodiments will be described. Some of the elements described below may be substantially the same as those of the display device according to the above-described embodiment, and thus a description thereof will be omitted to avoid redundancy.

[0133] Figure 5 is a top plan view of a modified embodiment of a cover panel of a display device according to the present invention.

[0134] Reference Figure 5 In an embodiment, the contact point 401 of the cut-out portion CO1 of the cover panel CP1 may overlap with the center C thereof, thereby coinciding with or aligning with the center C.

[0135] The cut-off portion CO1 may include a first side 511 , a second side 521 , and a contact point 401 at which the first side 511 and the second side 521 meet each other.

[0136] The first side 511 and the second side 521 may extend from an outer periphery (eg, an outer edge) of the cover panel CP1 toward the center C.

[0137] In other words, the outer ends of the first side 511 and the second side 521 are spaced apart from each other, but the inner ends of the first side 511 and the second side 521 opposite to the outer ends thereof may contact each other at the center C.

[0138] In other words, the contact point 401 between the first side 511 and the second side 521 may overlap with the center C to be aligned therewith. In other words, the contact point 401 of the first side 511 and the second side 521 may be the center C of the cover panel CP1.

[0139] Figure 6a is an exploded perspective view of another embodiment of a cover panel of a display device according to the present invention.

[0140] Figure 6b yes Figure 6a A cross-sectional view of a cover panel.

[0141] Reference Figure 6a and Figure 6bIn an embodiment, the cover panel CP2 may include an adhesive layer 603 , a buffer layer 602 , and a dehumidification layer 601 .

[0142] In an embodiment, the cover panel CP2 may have a structure in which a plurality of functional layers are stacked.

[0143] The dehumidification layer 601 may be the same as described above with reference to Figure 2 The dehumidification layer 601 is a layer that contacts the display panel DP in the assembly structure of the display device described. The dehumidification layer 601 may absorb moisture to reduce or effectively prevent moisture from penetrating from the outside of the display panel DP into the display panel DP.

[0144] To this end, the dehumidification layer 601 may include, for example, a sponge.

[0145] The buffer layer 602 may be disposed on the back surface of the dehumidification layer 601. The buffer layer 602 may absorb impact applied thereto. In other words, the buffer layer 602 may reduce or effectively prevent external impact from being transferred to the display panel DP.

[0146] In an implementation, the buffer layer 602 may include a polymer resin, rubber, a urethane-based material, or an acrylic-based material.

[0147] The adhesive layer 603 may be disposed on the back surface of the buffer layer 602. In an implementation, the adhesive layer 603 may include an adhesive resin.

[0148] In an implementation, the adhesive layer 603 may be a double-sided tape.

[0149] The adhesive layer 603 may bond the flexible printed circuit board FPC and the cover panel CP2 together.

[0150] As mentioned above Figure 2 As described, the flexible printed circuit board FPC may be disposed on the back surface of the cover panel CP2.

[0151] When the cover panel CP2 includes the adhesive layer 603 , the cover panel CP2 and the flexible printed circuit board FPC may be bonded to each other through the adhesive layer 603 .

[0152] Adhesive layer 603, buffer layer 602 and dehumidification layer 601 may have the same planar shape as each other. The outer edge and inner edge of each of these layers may be aligned with each other in the common cover panel CP2. In other words, adhesive layer 603, buffer layer 602 and dehumidification layer 601 may have the same shape and completely overlap each other.

[0153] Each of the adhesive layer 603, the buffer layer 602, and the dehumidification layer 601 may include a cutout portion CO defined or formed at the same position as each other. The cutout portions CO may have the same planar shape as each other. The cutout portions CO may completely overlap each other to form a common cutout portion of the cover panel CP2.

[0154] Figure 7 is a top plan view of another modified embodiment of a cover panel of a display device according to the present invention.

[0155] Reference Figure 7 , the cover panel CP3 may include a plurality of cut-out portions.

[0156] In an embodiment, a plurality of cutouts may be provided. In addition, the cutouts may be spaced apart from each other along the outer edge of the cover panel CP3 and at the inner region of the cover panel CP3.

[0157] In an embodiment, the plurality of cutouts may include a first cutout CO_1 and a second cutout CO_2. Each of the first cutout CO_1 and the second cutout CO_2 may have a shape substantially the same as that of the cutout of the display device according to the aforementioned embodiment. Therefore, a description of the shape of each of the first cutout CO_1 and the second cutout CO_2 will be omitted.

[0158] In an embodiment, the first cut-off portion CO_1 and the second cut-off portion CO_2 may be arranged to face each other. In other words, the first cut-off portion CO_1 and the second cut-off portion CO_2 may face each other with respect to the center C therebetween.

[0159] When a plurality of cutouts are provided, stress generated during attachment of the cover panel CP3 to the display panel DP can be more effectively eliminated. Therefore, including more than one cutout can suppress the formation of wrinkles.

[0160] Figure 8 is a top plan view of still another modified embodiment of the cover panel of the display device according to the embodiment. Fig. 9 is a top plan view of still another modified embodiment of the cover panel of the display device according to the present invention.

[0161] Reference Figure 8 and Fig. 9 , the cover panel may include three or more cut-out portions. Figure 8 The cover panel CP4 includes a first cut-off portion CO_1, a second cut-off portion CO_2, and a third cut-off portion CO_3, and Fig. 9 A case is shown in which the cover panel CP5 includes a first cut-off portion CO_1 , a second cut-off portion CO_2 , a third cut-off portion CO_3 , and a fourth cut-off portion CO_4 .

[0162] When a plurality of cutouts are provided, stress generated during the attachment process can be dispersed more effectively.

[0163] although Figure 8 Three cutouts are shown and Fig. 9 Four cutouts are shown in FIG. 1 , but the number of the cutouts is not limited to three or four. In other embodiments, the number of the cutouts may be four or more.

[0164] The plurality of cutouts within the cover panel may be spaced apart from each other at substantially equal distances, but is not limited thereto.

[0165] Fig.10 is a top plan view of another embodiment of a display device according to the present invention.

[0166] Reference Fig.10 , the cover panel CP6 may include a first cut-out portion CO_1 and a second cut-out portion CO_2. The first cut-out portion CO_1 and the second cut-out portion CO_2 may cooperate to form a single cut-out portion of the cover panel CP6.

[0167] As described above, the display panel DP may include the second area A2 protruding from the first area A1 in a certain direction.

[0168] Points from which the second area A2 starts may be defined in the display panel DP. For ease of description, these points will be referred to as a first point P1 and a second point P2.

[0169] The second area A2 may protrude outward from the first point P1 and the second point P2. In other words, the first point P1 and the second point P2 may be boundaries between the first area A1 and the second area A2.

[0170] The first point P1 and the second point P2 may be spaced apart from each other.

[0171] The outer edge of the display panel DP may extend between the first point P1 and the second point P2 to define a boundary between the first area A1 and the second area A2. In other words, in an embodiment, the outer edge of the display panel DP may extend as a continuation of the periphery, thereby bending at the boundary between the first area A1 and the second area A2. In another embodiment, the outer edge of the display panel DP may extend as a straight line starting from the first point P1 and the second point P2.

[0172] In an embodiment, the first point P1 and the second point P2 may be inflection points of the periphery of the display panel DP. In other words, the periphery of the display panel DP may extend with a certain curvature at a portion other than the second area A2, and then extend from the first point P1 and the second point P2 at the second area A2 with different curvatures.

[0173] The first reference line RL1 is defined to connect the first point P1 and the center C of the display panel DP to each other, and the second reference line RL2 is defined to connect the second point P2 and the center C to each other.

[0174] The cover panel CP6 may include a main body portion (eg, Fig.10 A substantially circular shape in the display panel DP and a protruding portion, wherein the main portion corresponds to a main portion of the display panel DP and the protruding portion extends from the main portion at a position corresponding to the second area A2 of the display panel DP.

[0175] In an embodiment, for the cover panel CP6, the first cutout portion CO_1 may be disposed on the first reference line RL1 defined with respect to the display panel DP, and the second cutout portion CO_2 may be disposed on the second reference line RL2 defined with respect to the display panel DP.

[0176] In other words, the first cutout portion CO_1 of the cover panel CP6 may overlap with the first reference line RL1 defined for the display panel DP, and the second cutout portion CO_2 of the cover panel CP6 may overlap with the second reference line RL2 defined for the display panel DP. Fig.10 As shown, the first reference line RL1 and the second reference line RL2 may extend from the center C so as to be disposed within a plane region defined by the first cut-off portion CO_1 and the second cut-off portion CO_2.

[0177] In an embodiment, to define the protruding portion of the cover panel CP6, the first contact point 403 of the first cutout CO_1 may be disposed on the first reference line RL1 defined for the display panel DP, and the second contact point 404 of the second cutout CO_2 may be disposed on the second reference line RL2 defined for the display panel DP. The first contact point 403 and the second contact point 404 may be points where the main body of the cover panel CP6 intersects with the protruding portion of the cover panel CP6.

[0178] In an embodiment, the first cutout CO_1 may overlap the first reference line RL1, and the second cutout CO_2 may overlap the second reference line RL2. However, the first contact point 403 may be disposed outside the first reference line RL1, and the second contact point 404 may be disposed outside the second reference line RL2.

[0179] When the display panel DP has the second area A2, the wrinkles of the cover panel CP6 are obvious near the first point P1 and the second point P2. However, if the first cutout portion CO_1 and the second cutout portion CO_2 are defined corresponding to the first reference line RL1 and the second reference line RL2 as described above, the formation of wrinkles in the portions corresponding to the first point P1 and the second point P2 can be reduced or effectively prevented.

[0180] In an embodiment, the protruding portion of the cover panel CP6 may partially cover the second area A2 of the display panel DP.

[0181] The cover panel CP6 covering the second area A2 may overlap the connection portion 500. Therefore, a distal end of the protruding portion of the cover panel CP6 may at least partially overlap an end portion of the flexible printed circuit board FPC at which the flexible printed circuit board FPC is connected to the display panel DP.

[0182] The flexible printed circuit board FPC may include a main body portion (eg, Fig.10 A roughly circular shape in the middle) and a protruding portion, wherein the main portion corresponds to the main portion of the display panel DP and the main portion of the cover panel CP6, and the protruding portion extends from the main portion at a position corresponding to the second area A2 of the display panel DP.

[0183] The cover panel CP6 may not overlap with the bending area BA of the flexible printed circuit board FPC. The bending area BA may be referred to as a folded or bent area of ​​the flexible printed circuit board FPC. In other words, as described above with reference to Figure 2 As described, the bending area BA of the flexible printed circuit board FPC may be folded or bent to be disposed on the back surface of the cover panel CP6. If the cover panel CP6 overlaps with the bending area BA of the flexible printed circuit board FPC, the cover panel CP6 may hinder the folding of the flexible printed circuit board FPC. Therefore, the cover panel CP6 may not overlap with the bending area BA of the flexible printed circuit board FPC.

[0184] Now, a method of manufacturing a display device according to an embodiment will be described hereinafter. Some of the elements described below may be substantially the same as those of the display device according to the above-described embodiment, and thus description thereof will be omitted to avoid redundancy.

[0185] Fig.11 1 is a perspective view showing an embodiment of a method for manufacturing a display device according to the present invention. Fig.11 According to an embodiment, a method for manufacturing a display device includes: preparing a display panel DP that displays an image and a cover window CW attached to the front surface of the display panel DP; arranging a cover panel CP including a cutout portion CO on the back surface of the display panel DP attached to the cover window CW, wherein the cutout portion CO is defined as extending from the periphery of the cover panel CP toward the center C of the cover panel CP; and squeezing the cover panel CP to the display panel DP attached to the cover window CW.

[0186] The display panel DP and the cover window CW may be substantially the same as those of the display device according to the above-described embodiment. In other words, the cover window CW may have an arch shape, and thus, the display panel DP may include a curved surface attached to an inner curved surface of the cover window CW.

[0187] Arranging the cover panel CP on the back surface of the display panel DP may be performed. Specifically, a flat cover panel ( Fig.11 CP in the display panel) and can be positioned on a curved display panel ( Fig.11 The cover panel CP may be substantially the same as those described in the above embodiments.

[0188] Refer again Fig.11 , pressing the flat cover panel CP to the curved back surface of the display panel DP using a pressure roller (or roller) R may be performed.

[0189] The flat cover panel CP may be bent and attached to the display panel DP by pressing the flat cover panel CP toward the curved display panel DP using a pressure roller R. Although not shown in the drawings, an adhesive layer may be provided between the flat cover panel CP and the curved display panel DP to be attached to the flat cover panel CP. Therefore, when the flat cover panel CP is pressed, the flat cover panel CP is arranged to follow the curve of the curved display panel DP, so that the curved cover panel CP and the curved display panel DP may be bonded to each other.

[0190] In an embodiment, the flat cover panel CP may be bent by being pressed using a pressure roller R. In an embodiment, the pressure roller R may be shaped like a rod whose length extends in the longitudinal direction. In an embodiment, the longitudinal direction may be a direction from the center C of the flat cover panel CP to the periphery (e.g., the outer edge) of the flat cover panel CP.

[0191] In an embodiment, the pressure roller R may have a length corresponding to the distance from the center C of the cover panel CP to the periphery of the cover panel CP. Such a length of the pressure roller R may allow the pressure roller R to move along the curved back surface of the display panel DP, wherein the flat cover panel CP is disposed between the pressure roller R and the display panel DP.

[0192] In an embodiment, the pressure roller R may rotate clockwise or counterclockwise around the center C of the cover panel CP to press the cover panel CP to the curved display panel DP.

[0193] Specifically, the cover panel CP may be pressed by fixing a first end of the pressure roller R to the center C of the cover panel CP and moving a second end of the pressure roller R opposite to the first end thereof along the outer circumference of the cover panel CP.

[0194] Fig.12 is a perspective view showing another embodiment of a method of manufacturing a display device according to the present invention.

[0195] In an embodiment, the flat cover panel CP may be pressed into the curved display panel DP using a pressure pad PAD.

[0196] The pressure pad PAD may have an elastic material. The upper surface of the pressure pad PAD may have an upwardly convex curved surface corresponding to the arch shape of the cover window CW and / or the curved display panel DP. If the cover panel CP is pressed using the pressure pad PAD, the pressure may be uniformly transmitted from the center C of the cover panel CP toward the periphery of the cover panel CP.

[0197] Therefore, the cover panel CP and the display panel DP may be uniformly bonded to each other so as to each have a curved shape.

[0198] As described above, when the cover window CW has an arch shape that defines the curved shape of the display panel DP attached thereto, wrinkles may be formed in the cover panel CP due to geometric mismatch. If one or more cutouts are formed in the cover panel CP as in the above-mentioned embodiment, the stress generated during the extrusion process can be eliminated, thereby reducing or effectively preventing the formation of wrinkles in the cover panel CP.

[0199] According to one or more embodiments, wrinkles formed in a cover panel attached to a curved display panel may be reduced or effectively prevented.

[0200] However, the effects of the embodiments are not limited to those described herein. The above and other effects of the embodiments will become more apparent to those skilled in the art by referring to the claims.

Claims

1. Display equipment, including: The display panel includes a display area for displaying an image and a non-display area disposed outside the display area and is curved; a cover window disposed on the front surface of the display panel and being curved; as well as a cover panel disposed on the back surface of the display panel and being curved, wherein the cover panel comprises a cutout portion, the cutout portion being recessed from an outer edge of the cover panel toward a center of the cover panel, wherein the cutout portion comprises a first cutout portion and a second cutout portion spaced apart from each other along the outer edge of the cover panel, wherein the non-display area includes a first area and a second area protruding from the first area and narrower than the first area, and A first point and a second point are defined which demarcate the first area and the second area, and a first reference line connecting the first point and the center and a second reference line connecting the second point and the center are defined, wherein the first cut-off portion is arranged on the first reference line, and the second cut-off portion is arranged on the second reference line.

2. The display device according to claim 1, wherein: The cutout portion includes a first side, a second side, and a contact point, wherein an end of the first side and an end of the second side are spaced apart from each other and the other end of the first side and the other end of the second side intersect at the contact point.

3. The display device according to claim 2, wherein: The contact point and the center are spaced apart from each other.

4. The display device according to claim 1, further comprising: A printed circuit board is connected to the display panel.

5. The display device according to claim 4, wherein: A portion of the printed circuit board overlaps with a back surface of the cover panel.

6. The display device according to claim 1, wherein: The cover panel includes an adhesive layer, a buffer layer and a dehumidification layer which are sequentially stacked.

7. The display device according to claim 6, wherein: A cut-out portion is defined in each of the adhesive layer, the buffer layer, and the dehumidification layer, and the cut-out portions of the adhesive layer, the buffer layer, and the dehumidification layer overlap with each other to define the cut-out portion of the cover panel.

8. The display device according to claim 1, wherein: The cover panel partially covers the second area.

9. The display device according to claim 1, further comprising: a printed circuit board connected to the display panel, The printed circuit board is connected to the display panel at a connection portion formed in the second region, and the cover panel partially overlaps the connection portion.

10. The display device according to claim 1, wherein: The first cut-away portion includes a first contact point and the second cut-away portion includes a second contact point, wherein the first contact point is disposed on the first reference line and the second contact point is disposed on the second reference line.

11. The display device according to claim 1, wherein: The display area has a circular shape.

12. The display device according to claim 1, wherein: The cutout portion has a fan shape.

13. A method for manufacturing a display device, the method comprising: preparing a display panel including a display area and a non-display area and a cover window, the cover window being attached to a front surface of the display panel; disposing a cover panel on a rear surface of the display panel, the cover panel including a cut-out portion recessed from an outer edge of the cover panel toward a center of the cover panel; as well as extruding the cover panel, and Wherein, the cover window, the display panel and the cover panel are curved, wherein the cutout portion comprises a first cutout portion and a second cutout portion spaced apart from each other along the outer edge of the cover panel, wherein the non-display area includes a first area and a second area protruding from the first area and narrower than the first area, and A first point and a second point are defined which demarcate the first area and the second area, and a first reference line connecting the first point and the center and a second reference line connecting the second point and the center are defined, wherein the first cut-off portion is arranged on the first reference line, and the second cut-off portion is arranged on the second reference line.

14. The method of claim 13, wherein: Pressing the cover panel includes pressing the cover panel by rotating a pressure roller in a clockwise direction or a counterclockwise direction.

15. The method of claim 13, wherein: Pressing the cover panel includes pressing the cover panel using a pressure pad having an upper surface convex upward.

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