Display device

Abstract

A display device is provided. The display device includes a display panel including a first flat area, a second flat area, and a plurality of curved areas disposed between the first flat area and the second flat area, a heat sink disposed on one surface of the display panel and configured to support the plurality of curved areas, and a unit cover disposed on one surface of the heat sink, wherein the plurality of curved areas includes a first curved area and a second curved area, a sign of a curvature of the second curved area is opposite to a sign of a curvature of the first curved area, and wherein the heat sink includes a plurality of first opening portions disposed in an area overlapping the first curved area.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2024-0175471, filed on November 29, 2024, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. Technical Field

[0003] This application relates to a display device, and more specifically, to a display device having a curved shape. Background Technology

[0004] Display devices used for displays in computers, televisions, cellular phones, etc., include organic light-emitting display (OLED) devices that are self-emissive devices and liquid crystal display (LCD) devices that require a separate light source.

[0005] The application scope of display devices has been expanded to include personal digital assistants, computer and television displays, and research is underway on display devices with large display areas and reduced size and weight. Furthermore, display devices with various shapes have been studied. In particular, recently, research has been conducted on display devices with curved shapes. Summary of the Invention

[0006] The objective of this application is to provide a display device that reduces the repulsive force of the heat sink in a curved region.

[0007] Another objective of this application is to provide a display device that improves reliability in curved regions.

[0008] Another objective of this application is to provide a display device capable of suppressing display device separation caused by stress.

[0009] The purpose of this application is not limited to the above-mentioned purposes, and other purposes not mentioned above will be clearly understood by those skilled in the art from the following description.

[0010] According to an aspect of this application, a display device is provided. The display device includes: a display panel including a first flat region, a second flat region, and a plurality of curved regions disposed between the first flat region and the second flat region; a heat sink disposed on a surface of the display panel and configured to support the plurality of curved regions; and a unit cover disposed on a surface of the heat sink, wherein the plurality of curved regions includes a first curved region and a second curved region, the sign of the curvature of the second curved region being opposite to the sign of the curvature of the first curved region, and wherein the heat sink includes a plurality of first openings disposed in a region overlapping with the first curved region.

[0011] According to another aspect of this application, a display device is provided. The display device includes: a display panel including a first flat region, a second flat region, and a plurality of curved regions disposed between the first flat region and the second flat region; a heat sink disposed on a surface of the display panel and configured to support the display panel; and a unit cover disposed on a surface of the heat sink, wherein the plurality of curved regions includes a first curved region and a second curved region, the sign of the curvature of the second curved region being opposite to the sign of the curvature of the first curved region, and wherein the heat sink includes: a first portion configured to overlap with and support the first flat region; a second portion configured to overlap with and support the second flat region; and a plurality of bridging patterns configured to overlap with and support the first curved region.

[0012] Further details of exemplary embodiments are included in the detailed description and accompanying drawings.

[0013] According to this application, a protruding part corresponding to the opening of the heat sink can be provided on the unit cover to improve the heat dissipation effect.

[0014] According to this application, heat sinks with different structures can be applied according to the stress generated in the curved region, thereby improving the reliability of the display device.

[0015] According to this application, the rolled edge and the opening of the heat sink can be alternately arranged, thereby optimizing the manufacturing process of the display device.

[0016] The effects of this application are not limited to those illustrated above, and include many other effects. Attached Figure Description

[0017] The above and other aspects, features and advantages of this application will become clearer from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 This is a view of a device that illustrates the application of a display device according to an embodiment of this application;

[0019] Figure 2 This is a perspective view of a display device according to an embodiment of this application;

[0020] Figure 3 This is an exploded perspective view of a display device according to an embodiment of this application;

[0021] Figure 4 This is a view illustrating the heat sink of a display device according to an embodiment of this application;

[0022] Figure 5A and Figure 5B This is a cross-sectional view of a display device according to an embodiment of this application;

[0023] Figure 6 This is a view illustrating the heat sink of a display device according to another embodiment of this application; and

[0024] Figure 7 yes Figure 6 A magnified view of region X in the image. Detailed Implementation

[0025] The advantages and features of this application, and the methods for achieving these advantages and features, are described below with reference to the appendix. Figure 1 The exemplary embodiments described in detail will become clear. However, this application is not limited to the exemplary embodiments disclosed herein, but will be implemented in various forms. Exemplary embodiments are provided by way of example only to enable those skilled in the art to fully understand the disclosure and scope of this application.

[0026] The shapes, dimensions, scales, angles, quantities, etc., shown in the accompanying drawings used to describe exemplary embodiments of this application are merely examples, and this application is not limited thereto. Furthermore, in the following description of this application, detailed explanations of known related technologies may be omitted to avoid unnecessarily obscuring the subject matter of this application. Terms such as "comprising," "having," and "consisting of" as used herein are generally intended to allow for the addition of additional components, unless these terms are used in conjunction with the term "only." Any singular reference may include the plural form unless explicitly stated otherwise.

[0027] The component is interpreted to include the normal tolerance range, even if not explicitly stated.

[0028] When using terms such as “above,” “over,” “below,” and “next” to describe the positional relationship between two parts, one or more additional parts may be placed between the two parts, unless these terms are used in conjunction with the terms “immediately” or “directly.”

[0029] When one element or layer is disposed "on" another element or layer, the element or layer may be disposed directly on the other element or layer, or other elements or layers may be inserted between them.

[0030] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from other components. Therefore, in the technical concept of this application, the first component mentioned below can be the second component.

[0031] Throughout the application, the same reference numerals generally denote the same elements.

[0032] The dimensions and thicknesses of each component shown in the accompanying drawings are for ease of description, and this application is not limited to the dimensions and thicknesses of the components shown.

[0033] The features of the various embodiments of this application may be combined or integrated with each other in part or in whole, and may be linked and operated in various technical ways, and these embodiments may be performed independently or in association with each other.

[0034] Hereinafter, a display device according to an exemplary embodiment of the present application will be described in detail with reference to the accompanying drawings.

[0035] Figure 1 This is a view of a device that illustrates the display device according to an embodiment of this application.

[0036] Reference Figure 1 The display device 100 may be disposed on at least a portion of the vehicle's dashboard. The vehicle's dashboard includes a configuration disposed on the front side of the vehicle's front seats (e.g., driver's seat or passenger seat). For example, the vehicle's dashboard may be equipped with input configurations for operating various functions in the vehicle (e.g., air conditioning, audio system, and navigation system).

[0037] The display device 100 according to embodiments of this application can be installed on the dashboard of a vehicle and operate as an input component for manipulating at least some of the various functions of the vehicle. The display device 100 can provide various types of information related to the vehicle, such as driving information of the vehicle (e.g., the current speed of the vehicle, the amount of fuel remaining, and the distance traveled), and information related to the components of the vehicle (e.g., the degree of damage to the vehicle's tires).

[0038] Figure 1Only a portion of the display device 100 may be shown in the image. Figure 1 The portion of the display device 100 shown may be a display panel, one of the various components included in the display device 100. Specifically, for example, Figure 1 The portion of the display device 100 shown may be at least a portion of the display area and at least a portion of the non-display area of ​​the display panel. The components of the display device 100, excluding... Figure 1 Components other than those shown may be installed in the vehicle (or at least a portion thereof).

[0039] Depending on the interior space of the vehicle, the display device 100 may include multiple curved areas and multiple flat areas.

[0040] In the following text, reference will be made to Figure 2 Detailed description of display device 100.

[0041] Figure 2 This is a perspective view of a display device according to an embodiment of this application. For ease of explanation, Figure 2 Only the display panel 110 and the set cover 160 are shown.

[0042] Reference Figure 2 The display panel 110 of the display device 100 may include multiple curved regions CA and multiple flat regions FA. The multiple flat regions FA may include a first flat region FA1, a second flat region FA2, and a third flat region FA3. The curved regions CA may include a first curved region CA1 and a second curved region CA2.

[0043] Multiple flat regions FA and multiple curved regions CA can be alternately arranged along the second direction DR2. For example, the first flat region FA1, the first curved region CA1, the third flat region FA3, the second curved region CA2, and the second flat region FA2 can be arranged sequentially along the second direction DR2.

[0044] When the display device 100 is used for reference Figure 1 When describing a vehicle, the first flat area FA1 can display the space located in the driver's blind spot as an image to improve the driver's forward / lateral visibility. For example, the first flat area FA1 can be referred to as a digital mirror, which is configured to display road conditions on the lateral and rear sides of the vehicle. Furthermore, in this case, the first flat area FA1 can protrude towards the driver according to the shape of the vehicle's dashboard. Therefore, even in the confined space of the vehicle, the first flat area FA1 is able to ensure the driver's visibility.

[0045] The second flat region FA2 can display an image different from the image displayed in the first flat region FA1. For example, when the display device 100 is used for reference... Figure 1When describing a vehicle, the second flat area FA2 can provide the driver with the information needed. For example, the second flat area FA2 can display information such as speed, distance traveled, and navigation that the driver directly needs. The second flat area FA2 is separated from the first flat area FA1 in the third direction DR3 and is arranged parallel to the first flat area FA1 in the third direction DR3. For example, the second flat area FA2 can protrude towards the front surface of the vehicle according to the driver's field of vision, thus ensuring the driver's field of vision even in the confined space of the vehicle.

[0046] A third flat region FA3 is disposed between the first curved region CA1 and the second curved region CA2. The third flat region FA3 can be disposed in the direction intersecting the first flat region FA1 and the second flat region FA2, and connect the first curved region CA1 and the second curved region CA2. Therefore, the third flat region FA3 can even display an image between the first curved region CA1 and the second curved region CA2, thereby improving the visibility of the image on the display device 100.

[0047] The first curved region CA1 may be located between the first flat region FA1 and the third flat region FA3. The first curved region CA1 may have a curved surface suitable for the driver's field of vision or a curved surface suitable for the interior design of the vehicle. Therefore, the first curved region CA1 can improve the aesthetic appearance of the display device 100.

[0048] The second curved region CA2 can be located between the second flat region FA2 and the third flat region FA3. The second curved region CA2 can have a curved surface suitable for the driver's field of vision or a curved surface suitable for the vehicle's interior design. Therefore, the second curved region CA2 can improve the aesthetic appearance of the display device 100.

[0049] Furthermore, the curvature signs of the first curved region CA1 and the second curved region CA2 may be opposite to each other. For example, the first curved region CA1 may protrude toward the viewer of the display device 100, while the second curved region CA2 may protrude toward the unit cover 160. Therefore, the first curved region CA1 may be referred to as a convex region, and the second curved region CA2 may be referred to as a concave region.

[0050] The unit cover 160 can be disposed on one surface of the display panel 110. The unit cover 160 can be disposed on one surface of the display panel 110 and support one surface of the display panel 110. The unit cover 160 can accommodate the constituent elements of the display device 100 disposed on one surface of the display panel 110.

[0051] In the following text, reference will be made to Figure 3 The constituent elements of the display device 100 are described in more detail.

[0052] Figure 3 This is an exploded perspective view of a display device according to an embodiment of this application.

[0053] Reference Figure 3 The display device 100 according to the embodiments of this application includes a cover window CW, a display panel 110, a back plate 120, a heat sink 190, and a unit cover 160.

[0054] A cover window CW is disposed on another surface of the display panel 110. The cover window CW can be configured to cover the other surface of the display panel 110 and protect the display panel 110 from external impacts, moisture, heat, etc. The cover window CW can be configured to correspond to the shape of the display panel 110. Therefore, the cover window CW may include multiple flat areas and multiple curved areas corresponding to multiple flat areas FA and multiple curved areas CA of the display panel 110.

[0055] Display panel 110 is disposed on one surface of cover window CW. Display panel 110 is a panel configured to display images to a user. Display panel 110 may include light-emitting elements configured to display images, driving elements configured to operate the light-emitting elements, and lines configured to transmit various types of signals to the light-emitting elements and the driving elements.

[0056] Depending on the type of display panel 110, the light-emitting element may be defined differently. For example, if the display panel 110 is an organic light-emitting display panel, the light-emitting element may be an organic light-emitting element comprising an anode, an organic light-emitting layer, and a cathode. Hereinafter, it is assumed that the display panel 110 is an organic light-emitting display panel. However, the display panel 110 is not limited to organic light-emitting display panels.

[0057] Additionally, although not shown in the accompanying drawings, a polarizing plate and an adhesive layer may be disposed between the cover window CW and the display panel 110. The polarizing plate selectively transmits light and reduces the reflection of external light entering the display panel 110, thereby suppressing the degradation of the visibility of the display device 100 due to light reflection. Furthermore, the adhesive layer may be used to fix the polarizing plate and the cover window CW. The adhesive layer may be an optically transparent adhesive (OCA), which minimizes the presence of foreign matter or air bubbles between the polarizing plate and the cover window CW. However, this application is not limited to this. Furthermore, depending on the implementation of the display device 100, the polarizing plate and adhesive layer may not be included.

[0058] A backplate 120 may be disposed on one surface of the display panel 110. The backplate 120 not only supports the display panel 110 but also protects it from external moisture, heat, impact, and other influences. The backplate 120 may be configured to correspond to the shape of the display panel 110. Therefore, the backplate 120 may include multiple flat areas and multiple curved areas corresponding to multiple flat areas FA and multiple curved areas CA of the display panel 110.

[0059] A heat sink 190 is disposed on one surface of the back plate 120. The heat sink 190 may be configured to cover one surface of the display panel 110 and one surface of the back plate 120. Therefore, the heat sink 190 can support and protect the display panel 110 and the back plate 120. In addition, the heat sink 190 can be used as a heat dissipation component configured to dissipate the heat generated when the display device 100 is in operation.

[0060] The heat sink 190 may be configured to correspond to the shape of the display panel 110 and attached to the display panel 110. The heat sink 190 may include a plurality of curved areas and a plurality of flat areas corresponding to the display panel 110.

[0061] In the following text, reference will be made to Figures 4 to 5B A detailed description of heatsink 190.

[0062] Figure 4 This is a view illustrating the heat sink of a display device according to an embodiment of this application. Figure 5A and Figure 5B This is a cross-sectional view of a display device according to an embodiment of this application. Figure 5A It is along Figure 2 The cross-sectional view taken by line A-A' in the diagram. Figure 5B It is along Figure 2 The cross-sectional view taken by line B-B' in the diagram.

[0063] First, refer to Figure 5A and Figure 5B The heat sink 190 is disposed between the back plate 120 and the unit cover 160. The heat sink 190 may include a first heat sink 191, a second heat sink 192 and a third heat sink 193.

[0064] A first heat sink 191 is disposed on one surface of the display panel 110 and one surface of the back panel 120. The first heat sink 191 may be made of a material such as polyimide or polyethylene terephthalate (PET). The first heat sink 191 can improve the heat dissipation performance of the heat sink 190 while absorbing shock.

[0065] A second heat sink 192 is disposed on one surface of the first heat sink 191. The second heat sink 192 may be made of silicone, epoxy resin, polyurethane, or acrylic material. The second heat sink 192 can improve the heat dissipation performance of the heat sink 190 while absorbing shock.

[0066] The third heat sink 193 is disposed on one surface of the second heat sink 192. The third heat sink 193 may be made of a metal material with high thermal conductivity, such as copper (Cu), iron (Fe), or aluminum (Al). For example, the third heat sink 193 may be configured as a metal plate.

[0067] Reference Figure 4 The heat sink 190 may include a first part A1, a second part A2, a third part A3, a fourth part A4, and a fifth part A5.

[0068] The first part A1, the second part A2, and the third part A3 can be configured to overlap with and support multiple flat areas FA of the display panel 110. For example, the first part A1 can be configured to overlap with and support the first flat area FA1 of the display panel 110. The second part A2 can be configured to overlap with and support the second flat area FA2 of the display panel 110. The third part A3 can be configured to overlap with and support the third flat area FA3 of the display panel 110.

[0069] The fourth part A4 and the fifth part A5 can be configured to overlap with and support multiple curved areas CA of the display panel 110. For example, the fourth part A4 can be configured to overlap with and support the first curved area CA1 of the display panel 110. The fifth part A5 can be configured to overlap with and support the second curved area CA2 of the display panel 110.

[0070] The fourth portion A4 of the heat sink 190 may include a plurality of first openings 190H1 and a plurality of bridging patterns 190P. The plurality of first openings 190H1 and the plurality of bridging patterns 190P may be configured to overlap with at least one of a plurality of curved regions CA. For example, the plurality of first openings 190H1 and the plurality of bridging patterns 190P may be configured corresponding to a first curved region CA1.

[0071] Multiple first openings 190H1 and multiple bridging patterns 190P may be alternately arranged along the first direction DR1. In this application, the second direction DR2 may intersect the first direction DR1; for example, the second direction DR2 may be perpendicular to the first direction DR1, but is not limited thereto. The third direction DR3 may intersect the plane formed by the first direction DR1 and the second direction DR2; for example, the third direction DR3 may be perpendicular to each of the first direction DR1 and the second direction DR2, but is not limited thereto.

[0072] Multiple first openings 190H1 may be configured to be spaced apart from each other along a first direction DR1, with multiple bridging patterns 190P interposed between them. The multiple first openings 190H1 may be arranged along the first direction DR1 and reduce the stress applied to the heat sink 190 along the second direction DR2. For example, because multiple flat regions FA and multiple curved regions CA are alternately arranged along the second direction DR2, stress may be applied to the heat sink 190 along the second direction DR2. For example, if the first curved region CA1 has a curved shape protruding towards the cover window CW, tensile stress may be applied to a surface of the heat sink 190 attached to the display panel 110. Therefore, when the multiple first openings 190H1 are configured to overlap with the first curved region CA1, the multiple first openings 190H1 can alleviate the tensile stress on the heat sink 190 generated in the region overlapping with the first curved region CA1.

[0073] Multiple bridging patterns 190P can be configured to be spaced apart from each other along a first direction DR1 and have multiple first openings 190H1 inserted between them. The multiple bridging patterns 190P are disposed between a first flat region FA1 and a third flat region FA3. The multiple bridging patterns 190P can be disposed along the first direction DR1 and connect first portions A1 and third portions A3 that are adjacent to each other in the second direction DR2. In this case, each of the multiple bridging patterns 190P can have a curved shape corresponding to a first curved region CA1.

[0074] in addition, Figure 4 The number and shape of the multiple bridging patterns 190P and multiple first openings 190H1 shown are merely exemplary and may be varied depending on the radius of curvature and rigidity requirements.

[0075] Return to reference Figure 3 The unit cover 160 is disposed on one surface of the heat sink 190. The unit cover 160 can accommodate various components constituting the display device 100.

[0076] The unit cover 160 may include multiple protrusions 160P. The multiple protrusions 160P may protrude toward the display panel 110.

[0077] The plurality of protrusions 160P may be configured to correspond to the first curved region CA1 of the display panel 110 and the fourth portion A4 of the heat sink 190. In this case, the surface of each of the plurality of protrusions 160P may have a curved shape similar to a surface of the first curved region CA1 of the display panel 110 and a surface of the fourth portion A4 of the heat sink 190.

[0078] Multiple protrusions 160P can be configured to face multiple first openings 190H1 of the heat sink 190. For example, see together. Figure 5A Multiple protrusions 160P can be arranged along the first direction DR1, and the multiple protrusions 160P and multiple bridging patterns 190P can be alternately arranged in the area overlapping with the fourth part A4. Furthermore, refer together... Figure 5B Multiple protrusions 160P can be inserted into and fill multiple first openings 190H1. Furthermore, as... Figure 5A and Figure 5B As shown, the portion of the unit cover 160 without the multiple protrusions 160P may not contact the heat sink 190. That is, there may be a gap between the portion of the unit cover 160 without the multiple protrusions 160P and the heat sink 190.

[0079] Reference Figure 5A and Figure 5B Multiple heat dissipation patterns 170 can be formed on the surfaces of multiple protrusions 160P. The multiple heat dissipation patterns 170 can be formed on and attached to the surfaces of the multiple protrusions 160P. In this case, each of the multiple heat dissipation patterns 170 can have a curved shape in a second direction DR2 along the surface of each of the multiple protrusions 160P.

[0080] Multiple heat dissipation patterns 170 may each be adjacent to a surface of the backplate 120 corresponding to the first curved region CA1. Therefore, the multiple heat dissipation patterns 170 can be used as heat dissipation components configured to dissipate heat generated during operation of the display device 100. For example, the multiple heat dissipation patterns 170 can be used as heat dissipation components configured to dissipate heat transferred from the display panel 110 to the backplate 120. For example, the multiple heat dissipation patterns 170 may be made of graphite. However, this application is not limited thereto.

[0081] When a display device includes a curved area, a heat sink disposed on one surface of the display panel within the curved area may be subjected to stress. In this case, if the heat sink comprises multiple layers, repulsive forces may be applied to the multiple layers constituting the heat sink within the curved area. Consequently, sliding may occur between the multiple layers constituting the heat sink. Therefore, separation may occur between the layers of the heat sink adjacent to the display panel and the layers adjacent to the unit cover, and air bubbles may be generated between the layers.

[0082] Therefore, in the display device 100 according to the embodiment of this application, a plurality of first openings 190H1 can be provided on the heat sink 190 that overlaps with a plurality of curved regions CA, thereby reducing the stress applied to the heat sink 190. For example, the plurality of first openings 190H1 are configured to overlap with the first curved region CA1. Therefore, the plurality of first openings 190H1 can reduce the stress generated in the region overlapping with the first curved region CA1, and the plurality of first openings 190H1 can suppress the transmission of stress generated in the region overlapping with the first curved region CA1 to the region overlapping with the first flat region FA1 and the region overlapping with the third flat region FA3. Therefore, in the display device 100 according to the embodiment of this application, the plurality of first openings 190H1 of the heat sink 190 can eliminate the stress of the heat sink 190 generated in the curved region, thereby reducing the repulsive force of the heat sink 190. Therefore, it is possible to suppress the separation between the first heat sink 191, the second heat sink 192 and the third heat sink 193 of the heat sink 190, and to suppress the separation of the display device 100 caused by stress.

[0083] Furthermore, in the display device 100 according to the embodiments of this application, a plurality of first openings 190H1 are provided in stress-prone areas among a plurality of curved regions. For example, the fourth portion A4 of the heat sink 190 overlapping with the first curved region CA1 of the display panel 110 protrudes toward the display panel 110. Therefore, in the fourth portion A4 overlapping with the first curved region CA1, tensile stress is applied to the heat sink 190 attached to one surface of the back plate 120. Conversely, the fifth portion A5 of the heat sink 190 overlapping with the second curved region CA2 of the display panel 110 protrudes toward the unit cover 160. Therefore, in the fifth portion A5 of the heat sink 190 overlapping with the second curved region CA2, compressive stress is applied to the heat sink 190 attached to one surface of the back plate 120. Therefore, the heat sink 190 is susceptible to tensile stress generated in the region overlapping with the first curved region CA1, but not susceptible to compressive stress generated in the region overlapping with the second curved region CA2. Therefore, in the display device 100 according to the embodiments of this application, a plurality of first openings 190H1 can be provided in the region where the heat sink 190 subjected to tensile stress overlaps with the first curved region CA1, thereby eliminating the tensile stress applied to the heat sink 190 in the first curved region CA1. Thus, the plurality of first openings 190H1 can suppress separation between the first heat sink 191, the second heat sink 192, and the third heat sink 193, and improve the reliability of the display device 100.

[0084] Figure 6 This is a view illustrating the heat sink of a display device according to another embodiment of this application. Figure 7 yes Figure 6A magnified view of region X in the image. Figure 7 yes Figure 6 An enlarged rear view of the fifth part A5 of the heatsink 690. Besides the fifth part A5 of the heatsink 690, Figure 6 Display device 600 and Figures 1 to 5B The configuration of the display device 100 is largely the same. Therefore, repeated descriptions of identical components will be omitted. For ease of description, Figure 6 and Figure 7 Only the heat sink 690 among the various components of the display device 600 is shown.

[0085] Reference Figure 6 and Figure 7 The fifth part A5 of the heat sink 690 includes multiple hemmed portions 690Hm, multiple second opening portions 690H2, and multiple open portions 690Op.

[0086] Multiple rolled edges 690Hm, multiple second openings 690H2, and multiple open portions 690Op can be configured to overlap with the second curved region CA2. In this case, the multiple rolled edges 690Hm, multiple second openings 690H2, and multiple open portions 690Op can be configured to be adjacent to the third flat region FA3 between the second flat region FA2 and the third flat region FA3.

[0087] Reference Figure 6 Multiple rolled edges 690Hm and multiple open portions 690Op are alternately arranged along the first direction DR1. The rolled edges 690Hm can refer to the bent, overlapping portions of the heat sink 690. The multiple rolled edges 690Hm can protrude towards the unit cover 160 and reduce the stress on the heat sink 690 generated in the area overlapping with the second curved region CA2. For example, the multiple rolled edges 690Hm can be configured not to contact the back plate 120, and the multiple rolled edges 690Hm can be unaffected by the stress on the display panel 110 generated in the second curved region CA2 and the stress on the back plate 120 generated in the area overlapping with the second curved region CA2.

[0088] Reference Figure 7 The plurality of second openings 690H2 can be configured to be spaced apart from each other along the second direction DR2 and to have a plurality of rolled edges 690Hm inserted between them. Therefore, the plurality of second openings 690H2 can reduce the stress applied to the heat sink 690 from the structure of the plurality of rolled edges 690Hm.

[0089] Multiple open portions 690Op and multiple rolled edges 690Hm are alternately arranged along the first direction DR1. The multiple open portions 690Op can reduce the stress on the heat sink 690 generated in the region overlapping with the second curved region CA2. For example, because multiple flat regions FA and multiple curved regions CA are sequentially arranged along the second direction DR2, stress can be applied to the heat sink 690 along the second direction DR2. For example, if the second curved region CA2 has a curved shape protruding towards the unit cover 160, compressive stress can be applied to the other surface of the heat sink 690 attached to the display panel 110. Therefore, when the multiple open portions 690Op are arranged corresponding to the second curved region CA2, the multiple open portions 690Op can alleviate the compressive stress on the heat sink 690 generated in the region overlapping with the second curved region CA2.

[0090] Furthermore, multiple open portions 690Op can be connected to the surfaces of multiple rolled portions 690Hm adjacent to each other in the first direction DR1. For example, multiple open portions 690Op and multiple rolled portions 690Hm can be formed by partially cutting one rolled portion. Therefore, the manufacturing process can be optimized compared to the case where multiple rolled portions 690Hm and multiple open portions 690Op are formed separately.

[0091] In a display device 600 according to another embodiment of the present application, a plurality of first openings 190H1 may be provided on a heat sink 690 that overlaps with a plurality of curved regions CA, thereby reducing the stress applied to the heat sink 690.

[0092] Furthermore, in a display device 600 according to another embodiment of this application, a plurality of first openings 190H1 may be provided in stress-prone areas among a plurality of curved regions of the heat sink 690, thereby improving the reliability of the display device 600.

[0093] In another embodiment of the display device 600 according to this application, a plurality of first openings 190H1 may be provided on the heat sink 690 that overlaps with the first curved region CA1, thereby reducing the tensile stress applied to the heat sink 690 and improving the reliability of the display device 600.

[0094] Furthermore, in a display device 600 according to another embodiment of this application, a plurality of rolled edges 690Hm, a plurality of second openings 690H2 and a plurality of open portions 690Op are provided on a fifth portion A5 of the heat sink 690 that overlaps with the second curved region CA2 of the display panel 110, thereby reducing the compressive stress applied to the heat sink 690 in the fifth portion A5.

[0095] Furthermore, in a display device 600 according to another embodiment of this application, a plurality of rolled edges 690Hm, a plurality of second openings 690H2, and a plurality of open portions 690Op may be provided adjacent to the third portion A3 between the second portion A2 and the third portion A3, thereby suppressing the stress transmission of the heat sink 690 generated in the fifth portion A5 to the third portion A3 and the fourth portion A4. Specifically, the display panel 110 may be subjected to high stress between a first curved region CA1 and a second curved region CA2 with curvatures having opposite signs. For example, the stress generated in the second curved region CA2 may be transmitted to the first curved region CA1. Therefore, compared to the case where the display panel 110 includes a curved region, the stress generated in the first curved region CA1 may be increased. Therefore, in a display device 600 according to another embodiment of this application, a plurality of rolled edges 690Hm, a plurality of second openings 690H2 and a plurality of open portions 690Op can be provided between the second portion A2 and the third portion A3, adjacent to the third portion A3, and provided on the fifth portion A5 of the heat sink 690 provided between the first curved region CA1 and the second curved region CA2, thereby suppressing the stress of the heat sink 690 generated in the fifth portion A5 from being transmitted to the third portion A3 and the fourth portion A4.

[0096] Exemplary embodiments of this application can also be described as follows:

[0097] According to an aspect of this application, a display device is provided. The display device includes: a display panel including a first flat region, a second flat region, and a plurality of curved regions disposed between the first flat region and the second flat region; a heat sink disposed on a surface of the display panel and configured to support the plurality of curved regions; and a unit cover disposed on a surface of the heat sink, wherein the plurality of curved regions includes a first curved region and a second curved region, the sign of the curvature of the second curved region being opposite to the sign of the curvature of the first curved region, and wherein the heat sink includes a plurality of first openings disposed in a region overlapping with the first curved region.

[0098] The plurality of first openings can be arranged along a first direction.

[0099] The first flat region, the first curved region, the second curved region, and the second flat region can be arranged sequentially along the second direction.

[0100] The heat sink may include: a first heat sink made of polyethylene terephthalate (PET); a second heat sink disposed on one surface of the first heat sink and made of acrylic acid; and a third heat sink disposed on one surface of the second heat sink and made of a metal plate.

[0101] The unit cover may include a plurality of protrusions that are respectively opposite to the plurality of first openings.

[0102] The plurality of protruding portions can respectively fill the plurality of first openings.

[0103] The display device may further include: a back plate disposed between the display panel and the heat sink; and a plurality of heat dissipation patterns disposed on the plurality of protruding portions and adjacent to a surface of the back plate.

[0104] The heat sink may further include a plurality of rolled edges and a plurality of open portions, wherein the plurality of rolled edges and the plurality of open portions are configured to overlap with the curved region and are alternately arranged along a first direction.

[0105] The plurality of rolled edges and the plurality of open portions may overlap with the second curved region.

[0106] The display panel may further include a third flat region disposed between the first curved region and the second curved region, wherein the plurality of rolled edges and the plurality of open portions may be configured to be adjacent to the third flat region between the third flat region and the second flat region.

[0107] The display device may further include: a cover window disposed on another surface of the display panel, wherein the first curved region may protrude along the direction in which the cover window is disposed, and the second curved region may protrude along the direction in which the unit cover is disposed.

[0108] The heat sink may further include a plurality of second openings, the plurality of second openings being spaced apart from each other along a second direction and having the plurality of rolled edges inserted therebetween.

[0109] The portion of the unit cover that does not have the plurality of protruding parts may not contact the heat sink.

[0110] The plurality of rolled edges may protrude toward the unit cover.

[0111] The second flat region may display a different image than the first flat region.

[0112] According to another aspect of this application, a display device is provided. The display device includes: a display panel including a first flat region, a second flat region, and a plurality of curved regions disposed between the first flat region and the second flat region; a heat sink disposed on a surface of the display panel and configured to support the display panel; and a unit cover disposed on a surface of the heat sink, wherein the plurality of curved regions includes a first curved region and a second curved region, the sign of the curvature of the second curved region being opposite to the sign of the curvature of the first curved region, and wherein the heat sink includes: a first portion configured to overlap with and support the first flat region; a second portion configured to overlap with and support the second flat region; and a plurality of bridging patterns configured to overlap with and support the first curved region.

[0113] The first flat region, the plurality of curved regions, and the second flat region may be arranged sequentially along a second direction, and the plurality of bridging patterns may be arranged along a first direction.

[0114] The unit cover may include a plurality of protruding portions that project toward the display panel and are disposed along the first direction.

[0115] The plurality of protruding portions and the plurality of bridging patterns may be alternately arranged along the first direction.

[0116] The display device may further include: a plurality of heat dissipation patterns, the plurality of heat dissipation patterns being respectively disposed on the plurality of protrusions, wherein the surfaces of the plurality of protrusions to which the plurality of heat dissipation patterns are attached may each have a curved shape corresponding to the first curved region.

[0117] The display panel may further include a third flat region disposed between the first curved region and the second curved region, wherein the heat sink may further include: a third portion configured to overlap with and support the third flat region; a fourth portion configured to overlap with the first curved region and include a plurality of bridging patterns; and a fifth portion configured to overlap with and support the second curved region, wherein the fifth portion includes a plurality of rolled edges and a plurality of open portions.

[0118] The fifth part may further include a plurality of second openings, the plurality of second openings being spaced apart from each other along a second direction and the plurality of rolled edges being inserted therebetween, wherein the plurality of rolled edges and the plurality of openings may be alternately arranged along a first direction.

[0119] The portion of the unit cover that does not have the plurality of protruding parts may not contact the heat sink.

[0120] The plurality of rolled edges may protrude toward the unit cover.

[0121] The second flat region may display a different image than the first flat region.

[0122] Although exemplary embodiments of this application have been described in detail with reference to the accompanying drawings, this application is not limited thereto and may be implemented in many different forms without departing from the technical concept of this application. Therefore, the exemplary embodiments of this application are provided for illustrative purposes only and are not intended to limit the technical concept of this application. The scope of the technical concept of this application is not limited thereto. Therefore, it should be understood that the above exemplary embodiments are illustrative in all respects and do not limit this application. The scope of protection of this application should be interpreted based on the following claims, and all technical concepts within the equivalent scope thereof should be interpreted as falling within the scope of this application.

Claims

1. A display device, comprising: The display panel includes a first flat area, a second flat area, and a plurality of curved areas disposed between the first flat area and the second flat area; A heat sink is disposed on one surface of the display panel and configured to support the plurality of curved areas; as well as A unit cover, wherein the unit cover is disposed on one surface of the heat sink. The plurality of curved regions include a first curved region and a second curved region, wherein the sign of the curvature of the second curved region is opposite to the sign of the curvature of the first curved region, and The heat sink includes a plurality of first openings disposed in a region overlapping the first curved region.

2. The display device according to claim 1, wherein the plurality of first openings are arranged along a first direction.

3. The display device according to claim 2, wherein the first flat region, the first curved region, the second curved region and the second flat region are arranged sequentially along a second direction.

4. The display device according to claim 1, wherein the heat sink comprises: The first heat sink is made of polyethylene terephthalate (PET); The second heat sink is disposed on one surface of the first heat sink and is made of acrylic acid; and The third heat sink is disposed on one surface of the second heat sink and is made of a metal plate.

5. The display device according to claim 1, wherein the unit cover includes a plurality of protrusions respectively opposite to the plurality of first openings.

6. The display device according to claim 5, wherein the plurality of protruding portions respectively fill the plurality of first openings.

7. The display device according to claim 6, further comprising: A backplate, wherein the backplate is disposed between the display panel and the heat sink; and Multiple heat dissipation patterns are respectively disposed on the multiple protruding portions and adjacent to one surface of the back plate.

8. The display device according to claim 1, wherein the heat sink further comprises a plurality of rolled edges and a plurality of open portions, the plurality of rolled edges and the plurality of open portions being configured to overlap with the curved region and alternately arranged along a first direction.

9. The display device according to claim 8, wherein the plurality of rolled edges and the plurality of open portions overlap with the second curved region.

10. The display device of claim 9, wherein the display panel further includes a third flat region disposed between the first curved region and the second curved region, and The plurality of rolled edges and the plurality of open portions are configured to be adjacent to the third flat region between the third flat region and the second flat region.

11. The display device according to claim 10, further comprising: A cover window is disposed on another surface of the display panel. The first curved region protrudes along the direction in which the cover window is set, and the second curved region protrudes along the direction in which the unit cover is set.

12. The display device of claim 8, wherein the heat sink further comprises a plurality of second openings, the plurality of second openings being spaced apart from each other along a second direction and wherein the plurality of rolled edges are inserted therebetween.

13. The display device according to claim 5, wherein the portion of the unit cover not provided with the plurality of protrusions does not contact the heat sink.

14. The display device of claim 8, wherein the plurality of rolled edges protrude toward the unit cover.

15. The display device of claim 1, wherein the second flat region displays a different image from the first flat region.

16. A display device, comprising: The display panel includes a first flat area, a second flat area, and a plurality of curved areas disposed between the first flat area and the second flat area; A heat sink is disposed on one surface of the display panel and configured to support the display panel; as well as A unit cover, wherein the unit cover is disposed on one surface of the heat sink. The plurality of curved regions include a first curved region and a second curved region, wherein the sign of the curvature of the second curved region is opposite to the sign of the curvature of the first curved region, and The heat sink includes: The first part is configured to overlap with and support the first flat region; The second part is configured to overlap with and support the second flat region; and Multiple bridging patterns are configured to overlap with and support the first curved region.

17. The display device of claim 16, wherein the first flat region, the plurality of curved regions and the second flat region are arranged sequentially along a second direction, and the plurality of bridging patterns are arranged along a first direction.

18. The display device of claim 17, wherein the unit cover includes a plurality of protruding portions that project toward the display panel and are disposed along the first direction.

19. The display device of claim 18, wherein the plurality of protruding portions and the plurality of bridging patterns are alternately arranged along the first direction.

20. The display device according to claim 18, further comprising: Multiple heat dissipation patterns are respectively disposed on the multiple protruding portions. The surfaces of the plurality of protruding portions to which the plurality of heat dissipation patterns are attached each have a curved shape corresponding to the first curved region.

21. The display device of claim 16, wherein the display panel further includes a third flat region disposed between the first curved region and the second curved region. The heat sink further includes: The third part is configured to overlap with and support the third flat region; The fourth part is configured to overlap with the first curved region and includes a plurality of bridging patterns; and The fifth part is configured to overlap with and support the second curved region, and The fifth part includes multiple rolled edges and multiple open sections.

22. The display device of claim 21, wherein the fifth portion further comprises a plurality of second openings, the plurality of second openings being spaced apart from each other along a second direction and wherein the plurality of rolled edges are inserted therebetween, and The plurality of rolled edges and the plurality of open portions are alternately arranged along a first direction.

23. The display device of claim 18, wherein the portion of the unit cover not provided with the plurality of protrusions does not contact the heat sink.

24. The display device of claim 21, wherein the plurality of rolled edges protrude toward the unit cover.

25. The display device of claim 16, wherein the second flat region displays a different image from the first flat region.

Images