Display device

Abstract

A display device includes: a display panel including a light emitting element; and a heat dissipation sheet disposed under the display panel, and the heat dissipation sheet includes: a heat dissipation layer; a first protective layer disposed under the heat dissipation layer and defining a plurality of first through holes; and a water repellent member disposed under the first protective layer, the water repellent member having a water repellent surface, and the water repellent member defining a plurality of second through holes corresponding to the plurality of first through holes.

Description

TECHNICAL FIELD

[0001] The disclosure relates to a display device. More particularly, the disclosure relates to a display device including a heat spreader. BACKGROUND

[0002] As information technology develops, the importance of a display device, which is a medium for connecting users and information, is gradually highlighted. The display device can include a heat spreader to dissipate heat generated from a display panel to the outside. SUMMARY

[0003] Embodiments provide a display device having improved durability.

[0004] According to embodiments, a display device can include a display panel including a light emitting element, and a heat spreader disposed under the display panel, and the heat spreader can include a heat spreading layer, a first protective layer disposed under the heat spreading layer and defining a plurality of first through-holes, and a water repellent member disposed under the first protective layer, the water repellent member having a water repellent surface, and the water repellent member defining a plurality of second through-holes corresponding to the first through-holes.

[0005] In embodiments, a contact angle of a surface of the water repellent member with respect to water can be greater than a contact angle of a surface of the first protective layer with respect to water.

[0006] In embodiments, the contact angle of the surface of the water repellent member with respect to water can be about 90 degrees or more.

[0007] In embodiments, the water repellent member can cover a surface of the first protective layer around each of the plurality of first through-holes.

[0008] In embodiments, the water repellent member can include at least one of a fluorine-based compound and a silicon-based compound.

[0009] In embodiments, one of the plurality of first through-holes and a corresponding one of the plurality of second through-holes can be spatially connected to each other.

[0010] In embodiments, the first protective layer can include a first resin film disposed between the heat spreading layer and the water repellent member, and a first adhesive layer disposed between the first resin film and the heat spreading layer, and each of the plurality of first through-holes can include a first sub-hole penetrating the first adhesive layer and a second sub-hole penetrating the first resin film.

[0011] In an embodiment, the heat spreader can further include a second protective layer disposed above the heat dissipation layer, and the second protective layer can include a second resin film disposed between the heat dissipation layer and the display panel, and a second adhesive layer disposed between the second resin film and the heat dissipation layer.

[0012] In an embodiment, the heat spreader can include a first area and a second area positioned outside the first area, the first protective layer and the second protective layer can not contact each other in the first area and contact each other in the second area, and the water repellent member can overlap the first area in a plan view.

[0013] In an embodiment, the plurality of first through holes and the plurality of second through holes can be defined in the first area.

[0014] In an embodiment, the water repellent member can be a water repellent film disposed in an integrated shape under the first protective layer, and the plurality of second through holes can be defined in the water repellent film.

[0015] In an embodiment, the water repellent member can include a plurality of water repellent patterns disposed under the first protective layer.

[0016] In an embodiment, the plurality of water repellent patterns can be arranged to correspond to positions at which the plurality of first through holes are defined.

[0017] In an embodiment, a planar shape of each of the plurality of water repellent patterns can be a ring shape, and each of the plurality of water repellent patterns can define one of the second through holes.

[0018] In an embodiment, a surface of the water repellent member can have a concave-convex structure around the plurality of second through holes.

[0019] In an embodiment, as a distance from the heat dissipation layer increases, a width of each of the plurality of second through holes can decrease.

[0020] In an embodiment, the heat dissipation layer can include graphite.

[0021] A display device according to an embodiment can include a display panel and a heat spreader disposed under the display panel, and the display panel can include a base substrate, a transistor disposed on the base substrate, and a light emitting element electrically connected to the transistor, and the heat spreader can include a heat spreading layer disposed under the display panel, the heat spreading layer including graphite and having a porous structure, a first protective layer disposed under the heat spreading layer and defining a first through-hole, a water repellent member disposed under the first protective layer, the water repellent member having a water repellent surface and defining a second through-hole corresponding to the first through-hole, and a second protective layer disposed over the heat spreading layer.

[0022] In an embodiment, a surface of the water repellent member can have a contact angle with respect to water that is greater than a contact angle of a surface of the first protective layer with respect to water, and the contact angle of the surface of the water repellent member with respect to water can be about 90 degrees or more.

[0023] In an embodiment, the heat spreader can include a first area and a second area positioned outside the first area, the first protective layer and the second protective layer can not contact each other in the first area and contact each other in the second area, the water repellent member can overlap the first area in a plan view, and the first through-hole and the second through-hole can be defined in the first area.

[0024] In a display device according to an embodiment, a heat spreader can be disposed under a display panel. The heat spreader can include a heat spreading layer disposed under the display panel and a first protective layer disposed under the heat spreading layer, and the first protective layer can define a first through-hole exposing a portion of the heat spreading layer. Through the first through-hole, movement of air can occur, and thus a pressure difference between an outside of the heat spreader and an inside of the heat spreader can be reduced. Accordingly, a phenomenon in which the protective layer is detached from the heat spreading layer due to the pressure difference can be prevented. Thus, durability of the display device can be improved.

[0025] The heat spreader can further include a water repellent member. The water repellent member can be disposed under the first protective layer, have a water repellent surface, and define a second through-hole corresponding to the first through-hole. The water repellent member can prevent moisture from penetrating through the first through-hole of the protective layer. Accordingly, a phenomenon in which the protective layer is detached from the heat spreading layer due to the penetrated moisture can be prevented. Thus, durability of the display device can be improved.

[0026] Since the water repellent member defines the second through-hole, movement of air through the first through-hole can not be blocked even in a case in which the water repellent member is disposed under the first protective layer. Thus, a function of the first through-hole that adjusts a pressure difference between an outside of the heat spreader and an inside of the heat spreader can be maintained.

[0027] It will be understood that both the above general description and the following detailed description are explanatory only and are intended to provide further explanation of the present utility model claimed. BRIEF DESCRIPTION OF DRAWINGS

[0028] The illustrative, non-limiting embodiments will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings.

[0029] Figure 1 is a schematic perspective view showing a display device according to an embodiment.

[0030] Figure 2 is a schematic cross-sectional view showing a display panel included in the display device of Figure 1

[0031] Figure 3 is a schematic perspective view showing an example of a heat sink included in the display device of Figure 1

[0032] Figure 4 is a schematic cross-sectional view showing the example taken along line I-I' of Figure 3

[0033] Figure 5 is a schematic enlarged view of region XX in Figure 3

[0034] Figure 6 is a schematic cross-sectional view showing another example taken along line I-I' of Figure 3

[0035] Figure 7 is a schematic cross-sectional view showing another example taken along line I-I' of Figure 3

[0036] Figure 8 is a schematic perspective view showing another example of a heat sink included in the display device of Figure 1

[0037] Figure 9 is a schematic cross-sectional view showing the example taken along line II-II' of Figure 8

[0038] Figure 10 is a schematic enlarged view of region YY of Figure 8

[0039] Figure 11 is a schematic cross-sectional view showing another example taken along line II-II' of Figure 8

[0040] Figure 12 ​​​​​​​​​​is a schematic cross-sectional view of a further example taken along line II-II' of Figure 8 DETAILED DESCRIPTION

[0041] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various embodiments or implementations of the present disclosure. As used herein, "embodiments" and "implementations" are interchangeable words with respect to non-limiting examples of devices or methods disclosed herein. However, it will be apparent to one skilled in the art that various embodiments can be practiced without these specific details or with one or more equivalent arrangements. In this regard, various embodiments need not be mutually exclusive, and / or need not be limited to a single implementation. For example, specific shapes, configurations, and features of an embodiment can be used or implemented in another embodiment.

[0042] Unless otherwise indicated, embodiments shown are understood to provide features of the present disclosure. Thus, features, components, modules, layers, films, panels, regions, and / or aspects of various embodiments (hereinafter, individually or collectively referred to as "elements") can be combined, separated, interchanged, and / or rearranged, unless otherwise indicated, without departing from the present disclosure.

[0043] The use of cross-hatching and / or shading in the drawings is generally provided to illustrate the boundaries and / or transitions of adjacent elements. As such, unless otherwise indicated, the presence or absence of cross-hatching and / or shading does not convey or imply any preference or requirement for particular materials, material properties, dimensions, ratios, commonality of the illustrated elements, and / or any other characteristic, attribute, property, etc. of the elements. Moreover, in the drawings, the size and relative sizes of elements can be exaggerated for clarity and / or descriptive purposes. When embodiments can be practiced differently, a particular sequence of processes can be performed other than as described. For example, two consecutively described processes can be performed at substantially the same time or in the reverse order of the described processes. Moreover, the same reference numerals and / or reference characters can indicate the same elements.

[0044] ​When an element or layer is referred to as being “on”, “connected to”, or “coupled to” another element or layer, it can be directly on, connected, or coupled to the other element or layer, or one or more intervening elements or layers can be present. In contrast, when an element or layer is referred to as being “directly on”, “directly connected to”, or “directly coupled to” another element or layer, there are no intervening elements or layers present. To that extent, the term “connected” can refer to physical, electrical, and / or fluidic connections in the presence or absence of intervening elements. Furthermore, the first direction DR1, the second direction DR2, and the third direction DR3 are not limited to three axes of a rectangular coordinate system, such as an x-axis, a y-axis, and a z-axis, and can be interpreted in a broader sense. For example, the first direction DR1, the second direction DR2, and the third direction DR3 can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. For the purpose of the present disclosure, “at least one of A and B” can be understood as only A, only B, or any combination of A and B. Furthermore, “at least one of X, Y, and Z” and “at least one selected from the group consisting of X, Y, and Z” can be understood as only X, only Y, only Z, or any combination of two or more of X, Y, and Z. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0045] In the description and claims, the term “and / or”, for the purpose of interpreting this term in the context in which it is used, is intended to encompass all of the possible combinations of one or more items in the associated list. For example, “A and / or B” can be interpreted to mean “A, B, or A and B”. The term “and / or” can be construed in the same manner as “and / or” in the context in which it is used.

[0046] Although the terms “first”, “second”, etc. can be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another element. Thus, a first element discussed below could be named a second element without departing from the teachings of the present disclosure.

[0047] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper", "on", "directly on", and "side", for example as in "side wall", can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientations depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the term "below" can encompass both an orientation of above and below. Thus, a device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and, accordingly, the spatially relative descriptors used herein are to be interpreted in the context of the specific application in which they are used and should all be interpreted from the perspective of the device in use, operation, and / or manufacture.

[0048] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "over" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" or "directly over" another element, there are no intervening elements present. It will be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, or sections, these elements, components, regions, or sections should not be limited by these terms since the terms are relative, that is, only used to distinguish one element, component, region, or section from another element, component, region, or section.

[0049] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "comprises", "comprising", "includes", "including" and / or "contains", "containing" are used in the specification, they are taken to be open-ended terms i.e. one of their meanings is "including but not limited to", and thus specify the presence of stated features, integers, steps, elements, components and / or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, elements, components and / or groups thereof. It also will be noted that, as used herein, the terms "substantially", "approximately" and other like terms are used as terms of approximation and not as terms of degree, and are used to account for inherent deviations in measurements, calculations and / or other processes of a device of ordinary skill.

[0050] Various embodiments are described herein with reference to cross-sectional and / or exploded illustrations of schematic views of embodiments and / or intermediate structures as examples and / or intermediate structures for implementation of the described embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, embodiments disclosed herein are not necessarily limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. In this manner, regions illustrated in the figures can be schematic in nature and the shapes of the regions as illustrated in the figures can not reflect actual shapes of regions of devices and, as such, are not intended to be limiting.

[0051] Hereinafter, a display device according to an embodiment will be described in greater detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used for the same components, and redundant descriptions of the same components will be omitted.

[0052] Figure 1 is a schematic perspective view illustrating a display device according to an embodiment.

[0053] Referring to Figure 1 The display device DD can include a display panel DP, an adhesive member AD, and a heat dissipation sheet HRS.

[0054] The display panel DP can be a light emitting display panel. For example, the display panel DP can be an organic light emitting display panel including an organic light emitting element or an inorganic light emitting display panel including an inorganic light emitting element. However, the present disclosure is not necessarily limited thereto.

[0055] The display panel DP can include a display area DA and a peripheral area PA. The display area DA can be an area in which an image is displayed. A planar shape of the display area DA can be a rectangle. However, the planar shape of the display area DA is not limited thereto, and the display area DA can have various planar shapes other than a rectangle.

[0056] The peripheral area PA can be an area in which an image is not displayed. The peripheral area PA can be disposed around the display area DA. For example, the peripheral area PA can completely surround the display area DA. In an embodiment, a driver for displaying an image in the display area DA can be provided in the peripheral area PA.

[0057] The display panel DP can include a pixel PX. The pixel PX can be disposed in the display area DA. The pixel PX can be disposed in a matrix form along a first direction DR1 and a second direction DR2 intersecting the first direction DR1.

[0058] The display panel DP can have a rectangular planar shape. However, the present disclosure is not necessarily limited thereto, and the display panel DP can have various planar shapes other than a rectangular planar shape.

[0059] In the present specification, a plane can be defined by a first direction DR1 and a second direction DR2. For example, the first direction DR1 can be perpendicular to the second direction DR2. A third direction DR3 can be a normal direction of the plane. For example, the third direction DR3 can be perpendicular to both the first direction DR1 and the second direction DR2.

[0060] A heat spreader HRS can be disposed under the display panel DP. The heat spreader HRS can be bonded to a lower surface of the display panel DP by an adhesive member AD. For example, the adhesive member AD can be a pressure sensitive adhesive layer, but the present disclosure is not necessarily limited thereto.

[0061] The heat spreader HRS can dissipate heat generated in the display panel DP to the outside. For example, the heat spreader HRS can have substantially the same planar shape as the display panel DP, and the heat spreader HRS can have substantially the same area (or planar size) as the display panel DP. However, the present disclosure is not necessarily limited thereto.

[0062] Figure 2 is a schematic cross-sectional view illustrating a display panel included in a display apparatus of Figure 1

[0063] Referring to Figure 1 and Figure 2 The display panel DP can include a base substrate SUB, a transistor TR, a first insulating layer ILD1, a second insulating layer ILD2, a third insulating layer ILD3, and a fourth insulating layer ILD4, a pixel definition layer PDL, a light emitting element LED, a sealing layer TFE, an input sensing layer ISU, and an optical functional layer OFL. For example, the transistor TR can include an active pattern ACT, a gate electrode GE, a first connection electrode SE, and a second connection electrode DE. The light emitting element LED can include a pixel electrode PE, an emission layer EML, and a common electrode CE.

[0064] The base substrate SUB can include a transparent material or an opaque material. In an embodiment, examples of a material that can be used as the base substrate SUB can include glass, quartz, or plastic, etc. These can be used alone or in combination with each other.

[0065] The first insulating layer ILD1 can be disposed on the base substrate SUB. The first insulating layer ILD1 can prevent metal atoms or impurities from diffusing from the base substrate SUB to the active pattern ACT. In an embodiment, the first insulating layer ILD1 can be formed of an insulating material. Examples of the insulating material that can be used as the first insulating layer ILD1 can include silicon oxide, silicon nitride, or silicon oxynitride, etc. These can be used alone or in combination with each other.

[0066] ​An active pattern ACT can be disposed on the first insulating layer ILD1. In an embodiment, the active pattern ACT can be formed of a silicon semiconductor material, an oxide semiconductor material, or an organic semiconductor material, etc. The active pattern ACT can include a source region, a drain region, and a channel region between the source region and the drain region.

[0067] A second insulating layer ILD2 can be disposed on the active pattern ACT. The second insulating layer ILD2 can cover the active pattern ACT. In an embodiment, the second insulating layer ILD2 can be formed of an insulating material. Examples of the insulating material that can be used for the second insulating layer ILD2 can include silicon oxide, silicon nitride, or silicon oxynitride, etc. These can be used alone or in combination with each other.

[0068] A gate electrode GE can be disposed on the second insulating layer ILD2. The gate electrode GE can overlap the channel region of the active pattern ACT in a plan view. In an embodiment, the gate electrode GE can be formed of a metal, an alloy, a conductive metal oxide, or a transparent conductive material, etc. The gate electrode GE can have a single layer structure or a multi-layer structure including a conductive layer.

[0069] A third insulating layer ILD3 can be disposed on the gate electrode GE. The third insulating layer ILD3 can cover the gate electrode GE. In an embodiment, the third insulating layer ILD3 can be formed of an insulating material. Examples of the insulating material that can be used for the third insulating layer ILD3 can include silicon oxide, silicon nitride, or silicon oxynitride, etc. These can be used alone or in combination with each other.

[0070] A first connection electrode SE and a second connection electrode DE can be disposed on the third insulating layer ILD3. The first connection electrode SE and the second connection electrode DE can be in contact with the source region and the drain region of the active pattern ACT, respectively. In an embodiment, the first connection electrode SE and the second connection electrode DE can be formed of a metal, an alloy, a conductive metal oxide, or a transparent conductive material, etc.

[0071] A fourth insulating layer ILD4 can be disposed on the first connection electrode SE and the second connection electrode DE. The fourth insulating layer ILD4 can cover the first connection electrode SE and the second connection electrode DE. The fourth insulating layer ILD4 can be formed of an insulating material. Examples of the insulating material that can be used for the fourth insulating layer ILD4 can include a photoresist, a polyacrylic resin, a polyimide-based resin, a polyamide-based resin, a siloxane-based resin, an acrylic-based resin, or an epoxy-based resin, etc. These can be used alone or in combination with each other. The fourth insulating layer ILD4 can have a single layer structure or a multi-layer structure including a plurality of insulating layers.

[0072] A pixel electrode PE can be disposed on the fourth insulating layer ILD4. The pixel electrode PE can include a conductive material such as a metal, an alloy, a conductive metal nitride, a conductive metal oxide, or a transparent conductive material, etc. The pixel electrode PE can have a single layer structure or a multi-layer structure including conductive layers.

[0073] The pixel electrode PE can be electrically connected to the transistor TR through a contact hole formed in the fourth insulating layer ILD4.

[0074] A pixel definition layer PDL can be disposed on the fourth insulating layer ILD4 and the pixel electrode PE. The pixel definition layer PDL can be formed of an insulating material. Examples of the insulating material which can be used as the pixel definition layer PDL can include a photoresist, a polyacrylic resin, a polyimide-based resin, a polyamide-based resin, a siloxane-based resin, an acrylic-based resin, or an epoxy-based resin, etc. These can be used alone or in combination with each other. The pixel definition layer PDL can define an opening exposing at least a portion of the pixel electrode PE.

[0075] An emission layer EML can be disposed on the pixel electrode PE exposed by the opening of the pixel definition layer PDL. In an embodiment, the emission layer EML can have a multi-layer structure including a hole injection layer, a hole transport layer, an electron transport layer, a light emitting material layer, and an electron injection layer.

[0076] A common electrode CE can be disposed on the emission layer EML. The common electrode CE can include a conductive material such as a metal, an alloy, a conductive metal nitride, a conductive metal oxide, or a transparent conductive material. The common electrode CE can have a single layer structure or a multi-layer structure including a plurality of conductive layers. In an embodiment, the common electrode CE can continuously extend across the pixels in the display area DA.

[0077] An encapsulation layer TFE can be disposed on the common electrode CE. The encapsulation layer TFE can cover the light emitting element LED. The encapsulation layer TFE can prevent impurities from penetrating into the light emitting element LED. The encapsulation layer TFE can include at least one organic layer and at least one inorganic layer.

[0078] An input sensing layer ISU can be disposed on the encapsulation layer TFE. The input sensing layer ISU can detect an external input. The external input can be provided in various forms. For example, the external input can be in the form of a user's touch, a pen touch, light, heat, or pressure. The external input can be in the form of a touch (e.g., hovering) in a neighboring space as well as direct contact. The input sensing layer ISU can include at least one touch electrode and at least one insulating layer. In an embodiment, the input sensing layer ISU can be omitted.

[0079] The optical function layer OFL can be disposed on the encapsulation layer TFE. For example, the optical function layer OFL can reduce the reflectance of light (e.g., external light) incident on the display panel DP. In an embodiment, the optical function layer OFL can include a phase retarder and a polarizer. However, the present disclosure is not necessarily limited thereto. For another example, the optical function layer OFL can include a black matrix including a light blocking material and a color filter. The color filter can be disposed in consideration of the color of light emitted from the light emitting element LED. In an embodiment, the optical function layer OFL can be omitted.

[0080] Figure 3 is a schematic perspective view illustrating an example of a heat spreader included in a display device of Figure 1 . Figure 4 is a schematic cross-sectional view illustrating an example taken along the line I-I' of Figure 3 . Figure 5 is a schematic enlarged view of the area XX in Figure 3 .

[0081] The upper surface of the heat spreader HRS illustrated in Figures 3 to 5 may correspond to the lower surface of the heat spreader HRS with respect to Figure 1 . Thus, although it can be illustrated as an upper surface or an upper portion surface in Figures 3 to 5 , it can be described as a lower surface or a lower portion surface in order to be consistent with Figure 1 . Although it can be illustrated as a lower surface or a lower portion surface in Figures 3 to 5 , it can be described as an upper surface or an upper portion surface in order to be consistent with Figure 1 .

[0082] Referring to Figures 3 to 5 , the heat spreader HRS can include a first area A1 and a second area A2. The second area A2 can be disposed outside the first area A1. The second area A2 can be an area in which sealing is formed, and the first area A1 can be an area other than the second area A2.

[0083] The heat spreader HRS can include a heat spreading layer HRL, a first protective layer PRL1, and a second protective layer PRL2.

[0084] The heat spreading layer HRL can be disposed in the first area A1. The heat spreading layer HRL can include a material having a relatively high thermal conductivity. The heat spreading layer HRL can have a porous structure. Examples of the material that can be used as the heat spreading layer HRL can include a tungsten-copper composite material, a molybdenum-copper composite material, or graphite, etc. These can be used alone or in combination with each other. For example, the heat spreading layer HRL can include graphite.

[0085] The first protective layer PRL1 and the second protective layer PRL2 can seal the heat dissipation layer HRL. Therefore, the first protective layer PRL1 and the second protective layer PRL2 can prevent particulate matter from the heat dissipation layer HRL from contaminating the exterior of the heat sink HRS. The first protective layer PRL1 and the second protective layer PRL2 can protect the heat dissipation layer HRL from external impacts.

[0086] For example, the first protective layer PRL1 and the second protective layer PRL2 can be in contact with each other in the second region A2. Therefore, a seal can be formed in the second region A2. On the other hand, the first protective layer PRL1 and the second protective layer PRL2 can be in contact with each other in the first region A1.

[0087] A first protective layer PRL1 may be disposed below a heat dissipation layer HRL. The first protective layer PRL1 may define a first via TH1. For example, the first via TH1 may penetrate the first protective layer PRL1. A portion of the heat dissipation layer HRL may be exposed through the first via TH1. The first via TH1 may be defined within a first region A1.

[0088] For example, such as Figure 5 As shown, the first through-hole TH1 can be arranged in a matrix along the first direction DR1 and the second direction DR2. However, this disclosure is not limited to this, and the arrangement of the first through-hole TH1 can be varied according to embodiments.

[0089] In the display device DD (see Figure 1 In the manufacturing process of [the material], there may be ranges of pressure variation within the process conditions. Within these ranges, air may concentrate in areas where the adhesive strength between the first protective layer PRL1 and the heat dissipation layer HRL is relatively weak. Therefore, large pressure variations may occur between the first protective layer PRL1 and the heat dissipation layer HRL. These pressure variations may cause the first protective layer PRL1 to detach from the heat dissipation layer HRL.

[0090] According to an embodiment, air movement can occur through the first through-hole TH1 defined in the first protective layer PRL1, thereby reducing the pressure difference between the outside and inside of the heat sink HRS. Therefore, the phenomenon of the first protective layer PRL1 detaching from the heat sink HRS can be prevented. In particular, if the heat sink HRS has a porous structure including graphite, air can move into the interior of the heat sink HRS, further reducing the pressure difference between the outside and inside of the heat sink HRS. Therefore, the phenomenon of the first protective layer PRL1 detaching from the heat sink HRS can be further prevented.

[0091] The first protective layer PRL1 may include a first resin film RF1 and a first adhesive layer AL1. The first resin film RF1 can be bonded to the heat dissipation layer HRL through the first adhesive layer AL1.

[0092] The first resin film RF1 can include a polymer resin. Examples of materials that can be used as the first resin film RF1 can include acetal-based resin, acrylic-based resin, carbonate-based resin, vinyl-based resin, or imine-based resin, etc. These can be used alone or in combination with each other. For example, the first resin film RF1 can include polyethylene terephthalate.

[0093] In an embodiment, a surface of the first resin film RF1 can be charged. For example, an antistatic layer can be formed on the surface of the first resin film RF1. Accordingly, a phenomenon in which foreign substances are attached to the surface of the first resin film RF1 can be prevented. However, the disclosure is not necessarily limited thereto, and a charging process for the first resin film RF1 can be omitted.

[0094] The first adhesive layer AL1 can be disposed between the heat dissipation layer HRL and the first resin film RF1. In an embodiment, the first adhesive layer AL1 can include a hot melt resin. Since the first adhesive layer AL1 includes the hot melt resin, the first adhesive layer AL1 can increase the strength of the first resin film RF1. For example, the first adhesive layer AL1 can include a polyurethane-based hot melt resin.

[0095] The first adhesive layer AL1 can define first sub-holes SH1. For example, the first sub-holes SH1 can penetrate the first adhesive layer AL1. The first sub-holes SH1 can be defined in the first area A1.

[0096] The first resin film RF1 can define second sub-holes SH2. For example, the second sub-holes SH2 can penetrate the first resin film RF1. The second sub-holes SH2 can be defined in the second area A2.

[0097] The first through-holes TH1 can be defined by the first sub-holes SH1 and the second sub-holes SH2. For example, one of the plurality of first sub-holes SH1 and a corresponding one of the plurality of second sub-holes SH2 can be spatially connected to each other, and thus, one of the plurality of first through-holes TH1 can be defined. In other words, each of the plurality of first through-holes TH1 can include the first sub-holes SH1 and the second sub-holes SH2 that are spatially connected to each other.

[0098] The second protective layer PRL2 can be disposed above the heat dissipation layer HRL. The second protective layer PRL2 can include a second resin film RF2 and a second adhesive layer AL2. The second resin film RF2 can be bonded to the heat dissipation layer HRL by the second adhesive layer AL2.

[0099] The second resin film RF2 can include a polymer resin. Examples of materials that can be used as the second resin film RF2 can include acetal-based resin, acrylic-based resin, carbonate-based resin, vinyl-based resin, or imine-based resin, etc. These can be used alone or in combination with each other. For example, the second resin film RF2 can include polyethylene terephthalate.

[0100] In an embodiment, a surface of the second resin film RF2 can be charged. For example, an antistatic layer can be formed on the surface of the second resin film RF2. Accordingly, a phenomenon in which foreign substances are attached to the surface of the second resin film RF2 can be prevented. However, the disclosure is not necessarily limited thereto, and a charging process for the second resin film RF2 can be omitted.

[0101] The second adhesive layer AL2 can be disposed between the heat dissipation layer HRL and the second resin film RF2. In an embodiment, the second adhesive layer AL2 can include a hot melt resin. Since the second adhesive layer AL2 includes the hot melt resin, the second adhesive layer AL2 can increase the strength of the second resin film RF2. For example, the second adhesive layer AL2 can include a polyurethane-based hot melt resin.

[0102] In an embodiment, the first adhesive layer AL1 and the second adhesive layer AL2 can define one adhesive layer in the second area A2. For example, in a case where the first protective layer PRL1 and the second protective layer PRL2 form a seal, the first adhesive layer AL1 and the second adhesive layer AL2 can be compressed at a high temperature, cooled, and cured to define one adhesive layer.

[0103] The heat dissipation sheet HRS can include a water repellent member RPM. In the present specification, water repellency can mean not only preventing being wet by water, but also preventing being wet by all liquids such as ink.

[0104] In an embodiment with reference to FIG. 1, Figures 3 to 5 In an embodiment with reference to FIG. 1, the water repellent member RPM can be a water repellent film disposed in an integrated shape under the first protective layer PRL1 in which the second through hole TH2 is defined. In other words, the water repellent member RPM can continuously extend without being broken. For example, the water repellent member RPM can have a mesh shape in which the second through hole TH2 is defined.

[0105] The water repellent member RPM can be disposed under the first protective layer PRL1. The first protective layer PRL1 can be disposed between the heat dissipation layer HRL and the water repellent member RPM. The water repellent member RPM can be formed by spin coating, physical vapor deposition (PVD), chemical vapor deposition (CVD), or atomic layer deposition (ALD).

[0106] The water repellent member RPM can include at least one of a fluorine-based compound and a silicon-based compound. For example, the water repellent member RPM can include polytetrafluoroethylene glycol (PTFE) as a polytetrafluoroethylene-based material.

[0107] In a plan view, the water repellent member RPM can overlap the first area A1. For example, the water repellent member RPM can be disposed in the first area A1 and not disposed in the second area A2. However, the disclosure is not necessarily limited thereto, and the water repellent member RPM can be disposed in the first area A1 and the second area A2.

[0108] In Figure 3 and Figure 4 , the water repellent member RPM is shown to have the same area (or planar size) as the heat dissipation layer HRL and is disposed corresponding to an area in which the heat dissipation layer HRL is disposed, but the disclosure is not necessarily limited thereto. For example, the water repellent member RPM can be disposed to exceed the heat dissipation layer HRL and up to a boundary between the first area A1 and the second area A2. The water repellent member RPM can be disposed to exceed the boundary between the first area A1 and the second area A2 and up to the second area A2. For example, the water repellent member RPM can have a large area (or planar size) than the heat dissipation layer HRL. In an embodiment, for example, the water repellent member RPM can have a small area (or planar size) than the heat dissipation layer HRL.

[0109] Thus, in a region in the first area A1 adjacent to the first through hole TH1 (i.e., around each of the plurality of first through holes TH1), the water repellent member RPM can be disposed under the first protective layer PRL1. Thus, the water repellent member RPM can cover the first surface S1 of the first protective layer PRL1 around each of the plurality of first through holes TH1. On the other hand, the second surface S2 of the water repellent member RPM can be exposed to the outside around each of the plurality of first through holes TH1.

[0110] The contact angle of the second surface S2 of the water repellent member RPM with respect to water can be greater than the contact angle of the first surface S1 of the first protective layer PRL1 with respect to water. For example, the second surface S2 of the water repellent member RPM can be more hydrophobic than the first surface S1 of the first protective layer PRL1.

[0111] If a surface exposed to the outside around each of the plurality of first through holes TH1 has hydrophilicity, moisture can easily condense around each of the plurality of first through holes TH1, and the moisture can penetrate through the first through hole TH1. The penetrated moisture can cause hydrolysis of the first adhesive layer AL1, causing the first adhesive layer AL1 to peel off from the heat dissipation layer HRL. Thus, the first protective layer PRL1 can peel off from the heat dissipation layer HRL.

[0112] According to an embodiment, since the water repellent member RPM is disposed under the first protective layer PRL1 around each of the plurality of first through holes TH1, it is possible to prevent moisture from penetrating through the first through holes TH1. Specifically, compared to a case where the first surface S1 of the first protective layer PRL1 is exposed to the outside around each of the plurality of first through holes TH1, it is possible to prevent moisture from penetrating through the first through holes TH1. Thus, it is possible to prevent peeling of the first adhesive layer AL1, and it is possible to prevent peeling of the first protective layer PRL1. Thus, it is possible to improve the durability of the display device DD.

[0113] The contact angle of the second surface S2 of the water repellent member RPM with respect to water can be about 90 degrees or more. Specifically, the contact angle of the second surface S2 of the water repellent member RPM with respect to water can be greater than about 90 degrees and less than about 180 degrees. In an embodiment, the contact angle of the second surface S2 of the water repellent member RPM with respect to water can be greater than about 120 degrees and less than about 180 degrees. In a case where the contact angle of the second surface S2 of the water repellent member RPM with respect to water is less than about 90 degrees, excessive moisture can penetrate through the first through holes TH1. Thus, it is desirable that the contact angle of the second surface S2 of the water repellent member RPM with respect to water be about 90 degrees or more.

[0114] In an embodiment, the water repellent member RPM can define second through holes TH2. The second through holes TH2 can penetrate the water repellent member RPM. For example, the water repellent member RPM can be a mesh-shaped water repellent film in which the second through holes TH2 are defined. The second through holes TH2 can be defined in the first area A1.

[0115] As shown in FIG. 1A, the second through holes TH2 can be defined to correspond to positions at which the first through holes TH1 are defined. In other words, the second through holes TH2 can have substantially the same arrangement as the first through holes TH1. For example, the second through holes TH2 can be arranged in a matrix form along the first direction DR1 and the second direction DR2. However, the present disclosure is not necessarily limited thereto, and the arrangement of the second through holes TH2 can be changed in various ways to correspond to the arrangement of the first through holes TH1. Figure 4 Figure 5 As shown in FIG. 1A, the second through holes TH2 can be defined to correspond to positions at which the first through holes TH1 are defined. In other words, the second through holes TH2 can have substantially the same arrangement as the first through holes TH1. For example, the second through holes TH2 can be arranged in a matrix form along the first direction DR1 and the second direction DR2. However, the present disclosure is not necessarily limited thereto, and the arrangement of the second through holes TH2 can be changed in various ways to correspond to the arrangement of the first through holes TH1.

[0116] Thus, one of the plurality of first through holes TH1 and a corresponding one of the plurality of second through holes TH2 can be spatially connected to each other. Thus, a portion of the heat dissipation layer HRL can be exposed through the first through holes TH1 and the second through holes TH2.

[0117] ​Because the water-repellent component RPM defines the second through-hole TH2, the movement of air through the first through-hole TH1 is not blocked even when the water-repellent component RPM is positioned below the first protective layer PRL1. Therefore, the function of the first through-hole TH1 in regulating the pressure difference between the outside and inside of the heat sink HRS can be maintained.

[0118] Therefore, air movement can occur through the first through-hole TH1 defined by the first protective layer PRL1 and the second through-hole TH2 defined by the water-repellent member RPM, thereby reducing the pressure difference between the outside and inside of the heat sink HRS. This prevents the first protective layer PRL1 from detaching from the heat sink HRS.

[0119] The maximum length of each of the plurality of second through-holes TH2 in the first direction DR1 (or the second direction DR2) can be approximately 1 mm or less. If the maximum length exceeds approximately 1 mm, particles in the heat dissipation layer HRL may be released to the outside, causing damage to the display panel DP, and external foreign matter and moisture may penetrate into the heat dissipation layer HRL. Specifically, the maximum length can be from approximately 0.1 mm to approximately 1 mm. In an embodiment, the maximum length can be from approximately 0.1 mm to approximately 0.4 mm.

[0120] For example, such as Figure 5 As shown, each of the plurality of second through holes TH2 may have a circular planar shape. The diameter DT of each of the plurality of second through holes TH2 may be from approximately 0.1 mm to approximately 1 mm. In an embodiment, the diameter DT may be from approximately 0.1 mm to approximately 0.4 mm. However, this disclosure is not limited thereto, and the planar shape of the second through holes TH2 may vary depending on the embodiment.

[0121] In this embodiment, the planar shape of each of the plurality of first through holes TH1 and the planar shape of each of the plurality of second through holes TH2 may be substantially the same. The area (or planar dimension) of each of the plurality of first through holes TH1 and the area (or planar dimension) of each of the plurality of second through holes TH2 may be substantially the same. The maximum length of each of the plurality of first through holes TH1 in the first direction DR1 (or the second direction DR2) and the maximum length of each of the plurality of second through holes TH2 in the first direction DR1 (or the second direction DR2) may be substantially the same. However, this disclosure is not limited thereto.

[0122] Figure 6 It shows along Figure 3 A schematic cross-sectional view of another example taken by line I-I'.

[0123] The embodiments described in reference to Figure 6 The embodiments described in reference to Figure 4 The embodiments described in reference to

[0124] In the embodiments described in reference to Figure 4 each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2 are shown to have a rectangular cross-sectional shape, but the present disclosure is not necessarily limited thereto.

[0125] In the embodiments described in reference to Figure 6 each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2 can be a tapered shape. Specifically, the width of each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2 can decrease as the distance from the heat radiation layer HRL increases. In other words, each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2 can have a tapered shape whose width decreases toward the opposite direction of the third direction DR3, i.e., toward the lower surface of the heat radiation fin HRS. Thus, the penetration of moisture through the first through holes TH1 and / or the second through holes TH2 can be further prevented. Thus, the peeling of the first protective layer PRL1 can be further prevented.

[0126] Figure 7 is a schematic cross-sectional view showing another example taken along the line I-I' of Figure 3

[0127] In the embodiments described in reference to Figure 7 The embodiments described in reference to Figure 4 The embodiments described in reference to

[0128] In the embodiments described in reference to Figure 4 the second surface S2 of the water repellent member RPM is shown to have substantially no step around the second through holes TH2, but the present disclosure is not necessarily limited thereto.

[0129] In the embodiments described in reference to Figure 7 the second surface S2 of the water repellent member RPM can have a concave-convex structure around the second through holes TH2. The concave-convex structure can be a structure in which at least one concave portion and at least one convex portion are repeated. Due to the concave-convex structure, the roughness of the second surface S2 of the water repellent member RPM around the second through holes TH2 can be improved. Thus, the contact angle of the second surface S2 of the water repellent member RPM around the second through holes TH2 with respect to water can increase. Thus, the penetration of moisture through the first through holes TH1 and / or the second through holes TH2 can be further prevented. Thus, the peeling of the first protective layer PRL1 can be further prevented.​

[0130] In an embodiment, the length of each of the recesses and the protrusions in the first direction DR1 can be about 1 micrometer or less. In the case where the length of each of the recesses and the protrusions in the first direction DR1 satisfies the above range, the roughness of the second surface S2 of the water repellent member RPM around the second through hole TH2 can be further improved. However, the length of each of the recesses and the protrusions in the first direction DR1 is not necessarily limited thereto.

[0131] Figure 8 is a schematic perspective view showing another example of a heat sink included in the display device of Figure 1 Figure 9 is a schematic cross-sectional view showing an example taken along the line II-II' of Figure 8 Figure 10 is a schematic enlarged view of the region YY of Figure 8

[0132] The upper surface of the heat sink HRS shown in Figures 8 to 10 may correspond to the lower surface of the heat sink HRS of Figure 1 . Thus, although it can be shown as an upper surface or an upper portion surface in Figures 8 to 10 , it can be described as a lower surface or a lower portion surface in order to be consistent with Figure 1 . Although it can be shown as a lower surface or a lower portion surface in Figures 8 to 10 , it can be described as an upper surface or an upper portion surface in order to be consistent with Figure 1 .

[0133] The heat sink HRS of Figures 8 to 10 may be substantially the same as the heat sink HRS of Figures 3 to 5 . Thus, the repeated description is omitted or simplified.

[0134] Figures 8 to 10 The water repellent member RPM' of Figures 3 to 5 differs from the water repellent member RPM of Figures 8 to 10 having the integrated film structure in that the water repellent member RPM' has a structure including a water repellent pattern RPP. Except for this, Figures 3 to 5 the water repellent member RPM' of may be substantially the same as the water repellent member RPM of

[0135] . Thus, the repeated description is omitted or simplified. Figures 8 to 10 Referring to , in an embodiment, the water repellent member RPM' can include a water repellent pattern RPP. The water repellent pattern RPP can be formed by inkjet printing or offset printing, etc. The water repellent member RPM' can be disposed under the first protective layer PRL1.

[0136] ​In a plan view, the water repellent member RPM' can overlap the first area A1. Specifically, the water repellent pattern RPP of the water repellent member RPM' can be arranged to correspond to a position at which the first through-hole TH1 is defined. As shown in Figure 8 and Figure 10 The water repellent pattern RPP can have substantially the same arrangement as the first through-hole TH1. For example, the water repellent pattern RPP can be arranged in a matrix form along the first direction DR1 and the second direction DR2. However, the disclosure is not necessarily limited thereto, and the arrangement of the water repellent pattern RPP can be variously changed according to the arrangement of the first through-hole TH1.

[0137] In an embodiment, the water repellent member RPM' can define a second through-hole TH2'. Specifically, each of the plurality of water repellent patterns RPP can define one of the plurality of second through-holes TH2'. For example, a planar shape of each of the plurality of water repellent patterns RPP can be a ring shape. Each of the plurality of water repellent patterns RPP can surround one of the plurality of first through-holes TH1 in a plan view.

[0138] Since the water repellent member RPM' defines the second through-hole TH2', air movement through the first through-hole TH1 can not be blocked even in a case in which the water repellent member RPM' is disposed under the first protective layer PRL1. Accordingly, a function of maintaining a pressure difference between the outside of the heat dissipation fin HRS and the inside of the heat dissipation fin HRS of the first through-hole TH1 can be maintained.

[0139] Movement of air can occur through the first through-hole TH1 defined by the first protective layer PRL1 and the second through-hole TH2' defined by the water repellent member RPM', and thus a pressure difference between the outside of the heat dissipation fin HRS and the inside of the heat dissipation fin HRS can be reduced. Accordingly, a phenomenon in which the first protective layer PRL1 is detached from the heat dissipation layer HRL can be prevented.

[0140] A maximum length of each of the plurality of second through-holes TH2' in the first direction DR1 (or the second direction DR2) can be about 1 mm or less. If the maximum length exceeds about 1 mm, particles in the heat dissipation layer HRL can be released to the outside, causing damage to the display panel DP, and external foreign matter and moisture can infiltrate into the heat dissipation layer HRL. Specifically, the maximum length can be about 0.1 mm to about 1 mm. In an embodiment, the maximum length can be about 0.1 mm to about 0.4 mm.

[0141] For example, as Figure 10As illustrated in FIG. 1, each of the plurality of water-repellent patterns RPP can have a circular planar shape, and each of the plurality of second through holes TH2' can have a circular planar shape. A diameter DT' of each of the plurality of second through holes TH2' can be about 0.1 mm to about 1 mm. In an embodiment, the diameter DT' can be about 0.1 mm to about 0.4 mm. However, the present disclosure is not necessarily limited thereto, and the planar shape of each of the plurality of water-repellent patterns RPP and each of the plurality of second through holes TH2' can vary according to an embodiment.

[0142] Accordingly, the water-repellent pattern RPP can be disposed under the first protective layer PRL1 around each of the plurality of first through holes TH1. Accordingly, the water-repellent pattern RPP can cover the first surface S1 of the first protective layer PRL1 around each of the plurality of first through holes TH1. On the other hand, the second surface S2' of the water-repellent member RPM' can be exposed to the outside around each of the plurality of first through holes TH1.

[0143] A contact angle with respect to water of the second surface S2' of the water-repellent member RPM' can be greater than a contact angle with respect to water of the first surface S1 of the first protective layer PRL1. For example, the second surface S2' of the water-repellent member RPM' can be more hydrophobic than the first surface S1 of the first protective layer PRL1.

[0144] According to an embodiment, since the water-repellent member RPM' (e.g., the water-repellent pattern RPP) is disposed under the first protective layer PRL1 around each of the plurality of first through holes TH1, moisture can be prevented from penetrating through the first through holes TH1. Accordingly, peeling of the first adhesive layer AL1 can be prevented, and peeling of the first protective layer PRL1 can be prevented. Accordingly, the durability of the display device DD (see FIG. 1) can be improved. Figure 1 ) of the display device DD (see FIG. 1) can be improved.

[0145] In particular, since the water-repellent member RPM' has a structure including the water-repellent pattern RPP, the first surface S1 of the first protective layer PRL1 can be exposed from the water-repellent member RPM' between the first through holes TH1. For example, a portion of the first surface S1 of the first protective layer PRL1 can be exposed to the outside between the water-repellent patterns RPP.

[0146] Because the contact angle of the first surface S1 of the first protective layer PRL1 with respect to water is smaller than that of the second surface S2' of the water-repellent member RPM', moisture can more easily condense on the first surface S1 of the first protective layer PRL1 rather than on the second surface S2' of the water-repellent member RPM'. For example, due to the effect of the first surface S1 of the first protective layer PRL1, the condensation of moisture on the second surface S2' of the water-repellent member RPM' can be further prevented. In other words, due to the effect of the first surface S1 of the first protective layer PRL1, moisture condensation can be further prevented around each of the first through holes TH1. Therefore, moisture penetration through the first through holes TH1 can be further prevented. Therefore, the detachment of the first protective layer PRL1 can be further prevented.

[0147] Figure 11 It shows along Figure 8 A schematic cross-sectional view of another example taken from line II-II'.

[0148] In addition to the cross-sectional shape of each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2', refer to Figure 11 The described embodiments can be compared with the references Figure 9 The described embodiments are essentially the same. Therefore, repeated descriptions are omitted.

[0149] exist Figure 9 In the diagram, each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2' is shown to have a rectangular cross-sectional shape, but this disclosure is not necessarily limited thereto.

[0150] refer to Figure 11 The cross-sectional shape of each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2' can be tapered. Specifically, the width of each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2' can decrease as the distance from the heat dissipation layer HRL increases. In other words, each of the plurality of first through holes TH1 and each of the plurality of second through holes TH2' can have a tapered shape in which its width decreases in the opposite direction to the third direction DR3 (i.e., towards the lower surface of the heat sink HRS). Therefore, it is possible to further prevent moisture from penetrating through the first through holes TH1 and / or the second through holes TH2'. Therefore, it is possible to further prevent the first protective layer PRL1 from peeling off.

[0151] Figure 12 It shows along Figure 8 A schematic cross-sectional view of another example taken from line II-II'.

[0152] In addition to the concave-convex structure of the water-repellent component RPM', refer to Figure 12The described embodiments can be applied to various display devices. Figure 9 The described embodiments are substantially the same. Thus, the repeated description is omitted.

[0153] In Figure 9 In the above-described embodiment, the second surface S2' of the water repellent member RPM' is shown as substantially having no step around the second through-hole TH2', but the present disclosure is not necessarily limited thereto.

[0154] Referring to Figure 12 , the second surface S2' of the water repellent member RPM' can have a concave-convex structure around the second through-hole TH2'. Each of the plurality of water repellent patterns RPP can have the concave-convex structure. The concave-convex structure can be a structure in which at least one concave portion and at least one convex portion are repeated. Due to the concave-convex structure, the roughness of the second surface S2' of the water repellent member RPM' around the second through-hole TH2' can be improved. Thus, the contact angle of the second surface S2' of the water repellent member RPM' around the second through-hole TH2' with respect to water can be increased. Thus, the penetration of moisture through the first through-hole TH1 and / or the second through-hole TH2' can be further prevented. Thus, the peeling of the first protective layer PRL1 can be further prevented.

[0155] In an embodiment, the length of each of the concave portion and the convex portion in the first direction DR1 can be about 1 micrometer or less. In the case where the length of each of the concave portion and the convex portion in the first direction DR1 satisfies the above-described range, the roughness of the second surface S2' of the water repellent member RPM' around the second through-hole TH2' can be further improved. However, the length of each of the concave portion and the convex portion in the first direction DR1 is not necessarily limited thereto.

[0156] The present disclosure can be applied to various display devices. For example, the present disclosure is applicable to various display devices such as display devices for vehicles, ships, and airplanes, portable communication devices, display devices for exhibition or information transmission, and medical display devices, etc.

[0157] In summarizing the detailed description, those skilled in the art will understand that many changes and modifications can be made to the preferred embodiments without substantially departing from the principles and spirit and scope of the present disclosure. Therefore, the disclosed preferred embodiments of the present disclosure are used in a general and descriptive sense only and are not used for limiting purposes.

[0158] The above description is an example of technical features of the present disclosure, and those skilled in the art to which the present disclosure pertains will be able to make various modifications and changes. Therefore, the above-described embodiments of the present disclosure can be implemented alone or in combination with each other.

[0159] The embodiments disclosed in the present disclosure are not intended to limit the technical spirit of the present disclosure, but to describe the technical spirit of the present disclosure, and the scope of the technical spirit of the present disclosure is not limited by these embodiments. The scope of protection of the present disclosure should be interpreted by the appended claims, and all technical spirits within the equivalent scope should be interpreted to be within the scope of the present disclosure.

Claims

1. A display device, characterized in that, The display device includes: Display panel, including light-emitting elements; and A heat sink is disposed below the display panel, and the heat sink includes: Heat dissipation layer; A first protective layer is disposed below the heat dissipation layer and defines a plurality of first through holes; and A water-repellent component is disposed below the first protective layer. The water-repellent component has a water-repellent surface and defines a plurality of second through holes corresponding to the plurality of first through holes.

2. The display device according to claim 1, characterized in that, The contact angle of the surface of the water-repellent component relative to water is larger than that of the surface of the first protective layer relative to water.

3. The display device according to claim 1, characterized in that, The water-repellent component covers the surface of the first protective layer around each of the plurality of first through holes.

4. The display device according to claim 1, characterized in that, One of the plurality of first through holes is spatially connected to the corresponding one of the plurality of second through holes.

5. The display device according to claim 1, characterized in that, The first protective layer includes: A first resin film is disposed between the heat dissipation layer and the water-repellent component; and A first adhesive layer is disposed between the first resin film and the heat dissipation layer, and Each of the plurality of first through holes includes a first sub-hole penetrating the first adhesive layer and a second sub-hole penetrating the first resin film.

6. The display device according to claim 1, characterized in that, The heat sink further includes a second protective layer disposed above the heat dissipation layer, the second protective layer comprising: A second resin film is disposed between the heat dissipation layer and the display panel; and A second adhesive layer is disposed between the second resin film and the heat dissipation layer. The heat sink includes a first region and a second region located outside the first region. The first protective layer and the second protective layer do not contact each other in the first region but contact each other in the second region. The water-repellent component overlaps with the first region in the plan view, and The plurality of first through holes and the plurality of second through holes are defined in the first region.

7. The display device according to claim 1, characterized in that, The water-repellent component is a water-repellent membrane integrally formed beneath the first protective layer, and the plurality of second through holes are defined in the water-repellent membrane.

8. The display device according to claim 1, characterized in that, The water-repellent component includes multiple water-repellent patterns disposed beneath the first protective layer, and The plurality of water-repellent patterns are arranged to correspond to the positions defining the plurality of first through holes.

9. The display device according to claim 1, characterized in that, The water-repellent component includes multiple water-repellent patterns disposed beneath the first protective layer, and Each of the plurality of water-repellent patterns has a ring-shaped planar shape, and Each of the plurality of water-repellent patterns defines one of the plurality of second through holes.

10. The display device according to claim 1, characterized in that, The surface of the water-repellent component has an uneven structure around the plurality of second through holes.

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