Slidable display device

Abstract

Disclosed is a slidable display device, the display device including a display panel including a first area that displays an image and is deformable, and second and third areas positioned outside the first area and are not deformable, a support member that supports the display panel, and an adhesive member that attaches the support member to the display panel, wherein the adhesive member includes a first adhesive member corresponding to the first area of the display panel, and second and third adhesive members corresponding to the second and third areas of the display panel, respectively, and wherein a modulus of the first adhesive member is less than a modulus of the second adhesive member and a modulus of the third adhesive member.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2024-0192120, filed in Korea on December 20, 2024, the entire contents of which are incorporated herein by reference for all purposes as if fully set forth herein. Technical Field

[0003] The present invention relates to a slidable display device capable of preventing the support member from detaching from the display panel. Background Technology

[0004] Recently, with the development of multimedia, the importance of display devices has been increasing. In response, flat panel displays, such as liquid crystal displays (LCDs) and organic light-emitting diode (OLED) displays, are being commercialized. Among these displays, OLEDs are currently widely used because they offer high response times, high brightness, and good viewing angles.

[0005] In addition, various flexible display devices have recently been developed. For example, scrollable, stretchable, and slidable display devices are under development. However, these display devices have support members attached to the display panel to support it. However, due to stress differences between areas, there is a problem of the support members peeling off from the display panel. Summary of the Invention

[0006] The advantage of this invention is that it provides a display device that prevents the support member from peeling off from the display panel by setting the modulus of the adhesive member differently between regions.

[0007] Additional features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practice of the invention. These and other advantages of the invention will be realized and obtained by means of the structures particularly pointed out in the written description and its claims, as well as in the accompanying drawings.

[0008] To achieve these and other advantages and for the purposes of the invention, as embodied and broadly described herein, a display device includes: a display panel comprising a first region that displays an image and is deformable, and a second and third region that are positioned outside the first region and are non-deformable; a support member that supports the display panel; and an adhesive member that attaches the support member to the display panel, wherein the adhesive member includes a first adhesive member corresponding to the first region of the display panel, and a second adhesive member and a third adhesive member corresponding to the second and third regions of the display panel, respectively, and wherein the modulus of the first adhesive member is less than the modulus of the second adhesive member and the modulus of the third adhesive member.

[0009] It should be understood that both the foregoing general description and the following detailed description are exemplary and illustrative, and are intended to provide further explanation of the claimed invention. Attached Figure Description

[0010] The accompanying drawings, which are included to provide a further understanding of this disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with the specification, serve to explain the principles of the disclosure. In the drawings:

[0011] Figure 1 This is a perspective view showing a display device according to an embodiment of the present invention;

[0012] Figure 2A and Figure 2B This is a side view of a display device according to an embodiment of the present invention;

[0013] Figure 3 This is a schematic cross-sectional view of the display module of a display device according to an embodiment of the present invention;

[0014] Figure 4 This is a view showing a display panel according to an embodiment of the present invention;

[0015] Figure 5 This is a plan view of a support member according to an embodiment of the present invention;

[0016] Figure 6 This is an enlarged view of a portion of the support member according to an embodiment of the present invention;

[0017] Figure 7 This is a view showing a support member wound around a guide member according to an embodiment of the present invention;

[0018] Figure 8 This is a plan view of the adhesive component of the display device according to an embodiment of the present invention;

[0019] Figure 9A This is a cross-sectional view of the first adhesive component according to an embodiment of the present invention;

[0020] Figure 9B This is a cross-sectional view of the second adhesive component and the third adhesive component according to an embodiment of the present invention;

[0021] Figure 10A and Figure 10B This is a view showing other shapes of the serrated shape of the adhesive component according to an embodiment of the invention; and

[0022] Figure 11This is a view showing another structure of the adhesive component according to an embodiment of the present invention. Detailed Implementation

[0023] The advantages and features of this disclosure, as well as the methods for achieving these advantages and features, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, this disclosure is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only these embodiments complete this disclosure. This disclosure is provided to fully inform those skilled in the art of this disclosure of its scope, and this disclosure may be defined by the scope of the claims.

[0024] The shapes, sizes, dimensions (e.g., length, width, height, thickness, radius, diameter, area, etc.), proportions, angles, numbers, etc. disclosed in the accompanying drawings used to illustrate embodiments of this disclosure are illustrative, and this disclosure is not limited to the matters shown.

[0025] For ease of description, dimensions including size and thickness of each component shown in the accompanying drawings are shown, and this disclosure is not limited to the size and thickness of the components shown, but it should be noted that the relative dimensions including relative size, position and thickness of the components shown in the various drawings submitted herein are part of this disclosure.

[0026] Throughout this specification, the same reference numerals refer to the same parts. Furthermore, in describing this disclosure, detailed descriptions of relevant known art may be omitted if it is determined that such detailed descriptions unnecessarily obscure the subject matter of this disclosure. When terms such as "comprising," "having," "including," "containing," "constituting," "made of," "formed by," and "composed of" are used in this disclosure, additional parts may be added unless "only" is used. When a part is referred to in the singular, the plural is included unless a specific statement is described.

[0027] The term "exemplary" is used to mean used as an example or illustration. An aspect is an example aspect. "Implementation method," "example," "aspect," etc., should not be construed as being more preferred or advantageous than other implementation methods. Unless otherwise stated, implementation method, example, example implementation method, aspect, etc., may refer to one or more implementation methods, one or more examples, one or more example implementation methods, one or more aspects, etc. Furthermore, the term "may" encompasses all the meanings of the term "able to."

[0028] When interpreting components, even without a separate explicit description, it is interpreted as including the margin range.

[0029] When describing positional relationships, for example, when using terms such as "on," "above," "below," "above," "below," "under," "near," "close to," "adjacent to," "adjoining," or "next to" to describe the positional relationship between two parts, one or more other parts may be located between the two parts, unless more restrictive terms such as "closely adjacent," "directly," or "tightly" are used. For example, when a structure is described as being located "above," "below," "over," "below," "below," "near," "close to," "adjacent to," or "near" another structure, or located "beside" or "near" another structure, the description should be interpreted to include situations where these structures are in contact with each other and where a third structure is arranged or inserted therebetween. Furthermore, the terms "left," "right," "top," "bottom," "down," "up," "upper," "lower," etc., refer to any frame of reference.

[0030] When describing time relationships, such as when time priorities are described as "after", "next", "before", etc., discontinuous cases can be included unless "direct" or "immediate" is used.

[0031] The various features of the various embodiments of this disclosure may be connected or combined with each other in part or in whole, and may be technically interlocked and driven in various ways, and the various embodiments may be implemented independently of each other or together with related relationships.

[0032] When describing the components of this disclosure, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are used only to distinguish components from other components, and the nature, order, sequence, or number of components is not limited by these terms. Furthermore, when describing a component as being "connected," "coupled," or "in contact" with another component, the component may be directly connected or in contact with the other component; however, it should be understood that other components may be "inserted" between these components, or a component may be "connected," "coupled," or "in contact" through other components.

[0033] The term "at least one" should be understood to include all combinations of one or more of the relevant elements. For example, the term "at least one of the first element, the second element, and the third element" can include all combinations of two or more of the first element, the second element, and the third element, as well as the first element, the second element, or the third element.

[0034] In this disclosure, "display device" can include a display device in the narrow sense, such as a display module including a display panel and a driving portion for driving the display panel. Furthermore, "display device" can include complete products or end products, such as notebook computers, televisions, computer monitors, automotive equipment or displays for other types of vehicles, or complete electronic devices or assemblies, such as mobile electronic devices including display modules as smartphones, tablet computers, etc.

[0035] Therefore, the display device of this disclosure may include the display device itself in the narrow sense, such as a display module, and / or application products or complete sets of equipment including display modules as end-user devices.

[0036] In the following, embodiments of the present disclosure are described in detail with reference to the accompanying drawings.

[0037] Figure 1 This is a perspective view showing a display device according to an embodiment of the present invention. Figure 2A and Figure 2B This is a side view of a display device according to an embodiment of the present invention.

[0038] Reference Figure 1 , Figure 2A and Figure 2B The display device 100 according to the present invention may include a display module 110, a housing 120 for accommodating the display module 110, a guide member 150 for guiding the display module 110 into the housing 120, and a motor 160 for driving the display module 110 into the housing 120.

[0039] The housing 120 may include at least a portion of the display module 110. For example, the housing 120 may be embedded in a vehicle's dashboard to house the display module 110 within the dashboard. However, the invention is not limited to this structure. For example, the display module 110 may be completely housed within the housing 120, or a portion of the display module 110 may be exposed outside the housing 120, and another portion of the display module 110 may be housed within the housing 120.

[0040] The display module 110 may include a display panel PNL for displaying images and support members 130 disposed on one or both sides of the display panel PNL to support the display panel PNL. The display panel PNL may be formed of a flexible material such as plastic, such that at least a portion thereof is deformable.

[0041] The support member 130 can support and guide the display panel PNL, allowing the display panel PNL to slide, bend, or roll in one direction. For example, the support member 130 can be a skirt.

[0042] The support member 130 can be used to enhance the rigidity of the display panel PNL and prevent the display panel PNL from bending in an undesirable direction. The support member 130 can be formed of a metal such as aluminum (Al), magnesium (Mg) or stainless steel (SUS), but is not limited thereto.

[0043] The support member 130 can be described in more detail later.

[0044] A movable member 140 may be provided on the rear surface of the support member 130. One end of the movable member 140 may be mounted to the support member 130, and the other end of the movable member 140 may be mounted to the housing 120. The movable member 140 may include a connecting portion 141, a frame 142, a movable support member 143, a movable portion 144, and a reinforcing plate 145.

[0045] The connecting portion 141 can be coupled to the support member 130 and can move together with the support member 130 when the support member 130 moves. The connecting portion 141 can be formed in a strip shape and can be coupled to the upper rear surface of the support member 130. The connecting portion 141 can be configured to rise and fall from the housing 120. When the connecting portion 141 rises and falls, the support member 130, i.e., the display module 110, coupled to the connecting portion 141 can also rise and fall. The connecting portion 141 can connect the support member 130 and the moving portion 144.

[0046] Frame 142 may be coupled to housing 120. Frame 142 may be configured in a strip shape and may be coupled to housing 120. Housing 120 may support frame 142.

[0047] The movable support member 143 may be configured to project upward from the frame 142. The movable support members 143 may be arranged in pairs, and each pair of movable support members 143 may be spaced apart from each other in the horizontal direction (e.g., the y-direction). The hollow portion in which the movable part 144 is mounted may be formed in the movable support member 143.

[0048] The reinforcing plate 145 can be positioned between a pair of spaced-apart movable supports 143 and can be coupled to the movable supports 143 to allow the pair of movable supports 143 to maintain a predetermined distance between them. The reinforcing plate 145 can be formed in a plate shape, but is not limited thereto. The reinforcing plate 145 can be integrally manufactured with the pair of movable supports 143, or can be omitted as needed. In addition, the frame 142, the movable supports 143, and the reinforcing plate 145 can be integrally manufactured.

[0049] One end of the movable portion 144 can be coupled to the connecting portion 141 and can be inserted into the movable support 143 to move relative to the movable support 143 in the z-direction. The movable portion 144 can be inserted into the hollow portion of the movable support 143 and can move upward and downward from the movable support 143. The movable portion 144 can support the support member 130 such that the exposed portion of the display module 110 can remain linear when the display module 110 is raised from the housing 120.

[0050] The housing 120 can be configured to accommodate at least a portion of the display module 110. When the display module 110 slides downward, at least a portion of the display module 110 can be bent and then rolled into a cylindrical shape to be accommodated in the housing 120.

[0051] The guide member 150 may be a rolling guide. The guide member 150 may be mounted in the housing 120, and when it rolls, the display module 110 may be rolled around the outer surface of the guide member 150 and housed within the housing 120. The guide member 150 may be formed of a metal such as aluminum (Al), magnesium (Mg), or stainless steel (SUS), but is not limited thereto.

[0052] The guide member 150 may include a bent portion 151, a connecting portion 152, and a bridging member 153. The display module 110 may be wound around the outer surface of the bent portion 151. The bent portion 151 may be formed in a cylindrical or semi-cylindrical shape, but is not limited thereto.

[0053] A pair of curved portions 151 may be disposed on both sides of the rear surface of the display module 110, and each of the pair of curved portions 151 may be spaced apart from each other in a second direction of the display module 110. A bridging member 153 may be positioned between the pair of curved portions 151.

[0054] One end of the display module 110 can be fixed to the guide member 150. For example, one end of the display module 110 can be fixed to the curved portion 151 of the guide member 150, but is not limited thereto.

[0055] Motor 160 can be positioned on one side of guide member 150 to lift display module 110. In other words, moving part 144 can be lifted by operation of motor 160, and because moving part 144 can move upward, display module 110 can move upward and pop out of housing 120. Motor 160 can be coupled to housing 120, and rotation axis can be coupled to guide member 150. Therefore, when motor 160 rotates, guide member 150 can rotate, and thus display module 110 can be wound around or detached from guide member 150, and display module 110 can be raised and lowered.

[0056] In the following text, you can refer to Figure 2A and Figure 2B A sliding operation method of the sliding display device 100 according to the present invention is described.

[0057] Figure 2A This is a view showing the display module 110 housed within the housing 120, and Figure 2B This is a view showing the state in which the display module 110 has popped out of the housing 120.

[0058] like Figure 2A As shown, one end of the display module 110 can be fixed to the curved portion 151 of the guide member 150, and the other end of the display module 110 can be placed outside the housing 120 or fixed inside the inlet of the discharge port of the housing 120. At this time, the display device 100 can be in a closed state, so that the bendable or flexible display module 110 can be accommodated in the housing 120 in a state of being rolled up around the curved portion 151 of the guide member 150.

[0059] like Figure 2B As shown, when the display device 100 is turned on, the motor 160 can be driven, and as the motor 160 is driven, the guide member 150 connected to the drive shaft of the motor 160 can begin to rotate counterclockwise.

[0060] As the guide member 150 rotates, the movable portion 144, inserted into the hollow portion of the movable support member 143, can begin to rise in the z-direction. As the movable portion 144 rises, the display module 110, connected to the movable portion 144 via the connecting portion 141, can also rise, and the display module 110, wound around the guide member 150, can detach from the guide member 150 and be discharged outside the housing 120 through the outlet of the housing 120. At this time, since the display module 110 is equipped with the support member 130, the display module 110, fully ejected from the housing 120, can display an image while remaining flat.

[0061] Figure 3 This is a schematic cross-sectional view of the display module of a display device according to an embodiment of the present invention.

[0062] like Figure 3 As shown, the display module 110 may include a display panel PNL for displaying images, a support member 130 below the display panel PNL, and an adhesive member 180 for attaching the support member 130 to the display panel PNL.

[0063] Display panel PNL can be any type of display panel. For example, display panel PNL can be an organic electroluminescent display panel, liquid crystal display panel, electrophoretic display panel, micro LED display panel, mini LED display panel, etc. Display panel PNL can also be a flexible display panel that can be bent or flexed.

[0064] The support member 130 may be formed of a metal such as aluminum (Al), magnesium (Mg), or stainless steel (SUS), but is not limited thereto. The support member 130 may support the display panel PNL and ensure that the display module 110 remains flat and perpendicular to the ground when the display module 110 is raised and removed from the housing 120.

[0065] Chamfers 132 may be formed at predetermined intervals on the lower (or rear) surface of the support member 130, i.e., the surface not attached to the display panel PNL. Chamfers 132 may provide bending characteristics to the support member 130, which is made of metal, thereby allowing the display panel PNL to be easily rolled around the guide member 150 in a cylindrical shape.

[0066] The adhesive component 180 may be double-sided tape. As will be described in detail later, the adhesive component 180 may be configured with multiple areas having different elasticities, which can prevent poor adhesion between the display panel PNL and the support component 130 due to peeling of the adhesive component 180 due to stress. This will be described in more detail later.

[0067] A backplate can be installed below the display panel PNL, and a polarizing plate and cover window can be installed on the display panel PNL.

[0068] Figure 4 It is shown Figure 3 A view of the display panel. The display panel PNL according to embodiments of the present invention can use any of a variety of display panels, but an organic electroluminescent display panel can be described below as an example.

[0069] like Figure 4 As shown, a buffer layer 242 can be formed on the substrate 240. The substrate 240 can be formed of a plastic material, such as polyimide, polymethyl methacrylate, polyethylene terephthalate, polyethersulfone, or polycarbonate, but is not limited thereto.

[0070] For example, when the substrate 240 is formed of polyimide, the substrate 240 may be configured with multiple layers made of polyimide, and inorganic layers may also be disposed between the polyimide layers, but not limited thereto.

[0071] The buffer layer 242 can be used to improve the adhesion between the layers formed thereon and the substrate 240, and to block various types of defects, such as alkaline components leaking from the substrate 240. In addition, the buffer layer 242 can be used to delay the diffusion of moisture or oxygen that permeates the substrate 240.

[0072] The buffer layer 242 can be formed as a single layer of SiNx or SiOx, or as a multilayer using SiNx and / or SiOx. When the buffer layer 242 is formed using a multilayer, SiOx and SiNx can be formed alternately. Depending on the type and material of the substrate 240, the structure and type of the thin-film transistor, etc., the buffer layer 242 can be omitted.

[0073] Thin-film transistors T can be formed on buffer layer 242. For ease of illustration, a driving thin-film transistor among various thin-film transistors that can be arranged in display device 100 is shown, but other thin-film transistors, including switching thin-film transistors, can also be included in display device 100. Furthermore, although the accompanying drawings show a thin-film transistor T with a top gate structure, it is not limited to this structure and can be implemented using other structures such as a bottom gate structure.

[0074] The thin-film transistor T may include a semiconductor layer 212 positioned on a buffer layer 242, a gate insulating layer 244 formed on the semiconductor layer 212, a gate electrode 214 positioned on the gate insulating layer 244, an interlayer insulating layer 246 formed on the gate electrode 214, and a source electrode 215 and a drain electrode 216 positioned on the interlayer insulating layer 246.

[0075] Semiconductor layer 212 can be formed of polycrystalline semiconductor. For example, polycrystalline semiconductor can be formed of low-temperature polycrystalline silicon LTPS with high mobility, but is not limited to this.

[0076] Alternatively, the semiconductor layer 212 can be formed of an oxide semiconductor. For example, the semiconductor layer 212 can be formed of any of IGZO (indium gallium zinc oxide), IZO (indium zinc oxide), IGTO (indium gallium tin oxide), and IGO (indium gallium oxide), but is not limited thereto. The semiconductor layer 212 can be configured to include a channel region 212a in the central region and source regions 212b and drain regions 212c on both sides as doped regions.

[0077] Inorganic materials such as SiOx and / or SiNx can be used to form the gate insulating layer 244 in a single layer or multiple layers, but are not limited thereto.

[0078] The gate electrode 214 can be formed of metal. For example, at least one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu) and their alloys can be used to form the gate electrode 214 in a single layer or multiple layers, but it is not limited thereto.

[0079] Organic materials such as photoacrylic acid or inorganic materials such as SiNx and / or SiOx can be used to form the interlayer insulation layer 246 in single or multiple layers. Furthermore, organic and inorganic layers can be used to form the interlayer insulation layer 246 in multiple layers, but this is not a limitation.

[0080] The source electrode 215 and drain electrode 216 can be formed in single or multiple layers using at least one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and their alloys, but are not limited thereto. The source electrode 215 and drain electrode 216 can be contacted with the source region 212b and drain region 212c of the semiconductor layer 212, respectively, through contact holes formed in the gate insulating layer 244 and the interlayer insulating layer 246.

[0081] A bottom shielding metal layer may be disposed below the semiconductor layer 212 and on the substrate 240. The bottom shielding metal layer can minimize reverse channeling caused by charges trapped in the substrate 240, thereby preventing residual images or performance degradation of the thin-film transistor T. The bottom shielding metal layer may be formed in a single layer or multiple layers using at least one of titanium (Ti), molybdenum (Mo), or alloys thereof, but is not limited thereto.

[0082] A planarization layer 248 can be formed on a substrate 240 on which a thin-film transistor T is disposed. The planarization layer 248 can be formed from an organic material such as photoacrylic acid, but is not limited thereto, and can also be formed as a multilayer including inorganic and organic layers.

[0083] An organic light-emitting element (or organic light-emitting diode) D can be disposed on the planarization layer 248. The organic light-emitting element D may include a first electrode 232, a light-emitting layer 234, and a second electrode 236, such that light emitted from the light-emitting layer 234 can be output downward through the first electrode 232.

[0084] The first electrode 232 can be formed in single or multiple layers using metals such as Ca, Ba, Mg, Al, Ag and their alloys.

[0085] A dam layer (BNK) can be formed at the boundary of each subpixel on the planarization layer 248. The dam layer (BNK) can be a partition wall that defines the subpixel. The dam layer (BNK) can separate each subpixel and prevent light of a specific color output by adjacent pixels from being mixed and output.

[0086] The dam layer BNK can be formed from at least one of inorganic insulating materials such as SiNx or SiOx, organic insulating materials such as BCB (benzocyclobutene), acrylic resin, epoxy resin, phenolic resin, polyamide resin or polyimide resin, and photosensitizers including black pigments, but is not limited thereto.

[0087] The light-emitting layer 234 may include a red (R) light-emitting layer formed in the red sub-pixel and emitting red light, a green (G) light-emitting layer formed in the green sub-pixel and emitting green light, and a blue (B) light-emitting layer formed in the blue sub-pixel and emitting blue light. Alternatively, the light-emitting layer 234 may be a white (W) light-emitting layer emitting white light.

[0088] The light-emitting layer 234 may include, but is not limited to, an organic light-emitting layer or an inorganic light-emitting layer, such as a nanoscale material layer, a quantum dot layer, a micro LED light-emitting layer, or a miniature LED light-emitting layer.

[0089] The light-emitting layer 234 may include, but is not limited to, an electron injection layer and a hole injection layer for injecting electrons and holes into the light-emitting material layer, and an electron transport layer, a hole blocking layer, an electron blocking layer, and a hole transport layer for transporting injected electrons and holes into the light-emitting material layer.

[0090] The second electrode 236 may be positioned on the light-emitting layer 234 and formed of a transparent conductive material, such as ITO (indium tin oxide) or IZO (indium zinc oxide) or a thin metal that transmits visible light, but is not limited thereto.

[0091] Furthermore, the organic light-emitting element D can be configured in a series structure. The series structure can include multiple organic layers, and charge-generating layers can be included between the organic layers. The charge-generating layers can be used to control the charge balance among the multiple organic layers, and can be configured with multiple layers including a first charge-generating layer and a second charge-generating layer. The charge-generating layers can include N-type and P-type charge-generating layers, and can be formed using organic layers doped with alkali metals (e.g., Li, Na, K, or Cs) or alkaline earth metals (e.g., Mg, Sr, Ba, or Ra), but are not limited thereto.

[0092] An encapsulation layer 280 can be formed on the second electrode 236 of the organic light-emitting element D. In this regard, when the organic light-emitting element D is exposed to moisture or oxygen, pixel shrinkage (shrinkage of the light-emitting area) or defects such as dark spots within the light-emitting area may occur. Furthermore, moisture or oxygen can oxidize the metal electrodes. The encapsulation layer 280 can block the penetration of moisture and oxygen from the outside and prevent defects in the organic light-emitting element D and its various electrodes.

[0093] The encapsulation layer 280 may be configured with a first encapsulation layer 282, a second encapsulation layer 284 and a third encapsulation layer 286, but is not limited thereto, and may be configured with two, four or more layers.

[0094] The first encapsulation layer 282 and the third encapsulation layer 286 can be formed in single or multiple layers using inorganic materials such as SiOx, SiON, or SiNx, and organic materials may be included between the inorganic layers, but are not limited thereto. The second encapsulation layer 284 can be formed of an organic insulating material such as acrylic resin, epoxy resin, polyimide, polyethylene, or silicon carbide oxide (SiOC), but is not limited thereto. The third encapsulation layer 286 can be formed of a thin metal (e.g., a face-sealing metal), but is not limited thereto.

[0095] A touch component can be placed on the encapsulation layer 280. The touch component can be placed in the display area to detect touch input. The touch component can detect external touch information using a user's finger or stylus.

[0096] Figure 5 This is a plan view of a support member according to an embodiment of the present invention.

[0097] like Figure 5 As shown, the support member 130 includes a first support member 130a, a second support member 130b, and a third support member 130c. The first support member 130a may be a curved region, and the second support member 130b and the third support member 130c may be flat regions.

[0098] The first support member 130a may be the area that wraps around the guide member 150 when the display module 110 is housed in the housing 120. A plurality of chamfers 132 may be formed on the lower surface of the first support member 130a.

[0099] The first support member 130a may correspond to the display area of ​​the display panel PNL. The second support member 130b and the third support member 130c may correspond to the pad area or peripheral area outside the display area of ​​the display panel PNL.

[0100] In the slidable display device 100 according to the present invention, one end of the display module 110 can be fixed to the guide member 150, and the other end of the display module 110 can protrude from the housing 120 or be positioned at the outlet of the housing 120. Furthermore, various driving elements can be provided at one end of the display module 110, and a pad area for attaching a flexible printed circuit board can be formed thereon.

[0101] The second support member 130b and the third support member 130c can be the fixing area and the pad area where the display module 110 is fixed to the guide member 150.

[0102] Multiple chamfers 132 may be formed on the rear surface of the first support member 130a. The chamfers 132 can provide flexibility to the support member 130, which is made of metallic material, thereby allowing the support member 130 to be rolled around the guide member 150. In the figures, the chamfers 132 are formed in the first support member 130a, but the chamfers 132 may also be formed in the second support member 130b and / or the third support member 130c.

[0103] Figure 6 It is an enlarged view of a portion of the supporting structure, and Figure 7 This is a view showing the support member wrapped around the guide member.

[0104] like Figure 6 As shown, the chamfer 132 can be formed to completely penetrate the support member 130, and in this case, its width can decrease from one surface (the surface opposite to the surface to which the display panel PNL is attached) to another surface (the surface to which the display panel PNL is attached). For example, the chamfer 132 can be substantially trapezoidal in shape, but is not limited thereto.

[0105] like Figure 7 As shown, when the display module 110 slides and is housed in the housing 120, the support member 130 can be wound around the guide member 150. When the support member 130 is wound around the guide member 150, the support member 130 can be bent. At this time, as the width of the chamfer 132 decreases, the support member 130 can bend with a certain curvature, and due to the trapezoidal shape of the chamfer 132, the support member 130 can bend further with the same curvature as the guide member 150 and be wound around the guide member 150.

[0106] In other words, in this invention, the support member 130 can be bent to a desired curvature according to the width and shape of the chamfer 132. Therefore, the curvature of the flexible support member 130 can be adjusted by adjusting the width and shape of the chamfer 132. In addition, the curvature of the flexible support member 130 can be adjusted by adjusting the spacing between the chamfers 132.

[0107] Therefore, in this invention, by adjusting the width, shape, and spacing of the chamfers 132 formed on the support member 130 according to the curvature of the curved portion 151 of the guide member 150, the display module 110 can be rolled around and accommodated on the guide member 150.

[0108] Meanwhile, since the display device 100 according to the present invention can be applied to various electronic devices, the housing 120 accommodating the display module 110 can be formed in various shapes according to the shape of the electronic device. Therefore, when the curved portion 151 accommodating the display module 110 is formed in an elliptical cylindrical shape, the curvature of the curved portion 151 can vary depending on the positioning. In this case, the width, shape, and spacing of the chamfer 132 of the support member 130 can be set differently according to the curvature of the curved portion 151 based on the positioning of the first region 130a.

[0109] like Figure 8 As shown, the adhesive component 180 may include a first adhesive component 180a, a second adhesive component 180b, and a third adhesive component 180c. The first adhesive component 180a may be attached to the first support component 130a, and the second adhesive component 180b and the third adhesive component 180c may be attached to the second support component 130b and the third support component 130c, respectively.

[0110] In this invention, by setting the modulus of the first adhesive member 180a, the second adhesive member 180b, and the third adhesive member 180c differently, the adhesive member 180 can be prevented from peeling off from the display panel PNL and / or the support member 130.

[0111] The first adhesive member 180a may be an area wound around the curved portion 151 of the guide member 150 while the first support member 130a is attached to the display area of ​​the display panel PNL. The second adhesive member 180b and the third adhesive member 180c may not be wound areas, but may be flat areas. Therefore, when the adhesive member 180 is attached to the support member 130 and the display panel PNL and wound around the curved portion 151 of the guide member 150, stress can be generated between the first adhesive member 180a, the second adhesive member 180b and the third adhesive member 180c, and due to this stress difference, a specific area, such as the first adhesive member 180a, can be peeled off from the support member 130 and the display panel PNL.

[0112] However, in this invention, the modulus of the first adhesive member 180a, which is wound around the curved portion 151 of the guide member 150, can be set to be less than the modulus of the second adhesive member 180b and the third adhesive member 180c. Therefore, when the adhesive member 180 is wound around the curved portion 151 of the guide member 150, the stress in that region can be minimized, thereby preventing the adhesive member 180 in that region from peeling off from the display panel PNL and the support member 130. In this case, the modulus of the second adhesive member 180b and the third adhesive member 180c can be the same, but are not limited to this.

[0113] Figure 9A It is a cross-sectional view of the first adhesive component, and Figure 9B This is a cross-sectional view of the second adhesive component and the third adhesive component.

[0114] like Figure 9A As shown, the first adhesive component 180a may include a first foam component 186a and a first adhesive layer 184a and a second adhesive layer 184b formed on the lower and upper surfaces of the first foam component 186a, respectively.

[0115] The first foam component 186a may be formed from a resin such as a polyurethane-based resin or an acrylic-based resin, but is not limited thereto. In this case, the first foam component 186a may be formed to a thickness of approximately 350 μm to 400 μm, but is not limited thereto.

[0116] The first adhesive layer 184a and the second adhesive layer 184b can be formed from various adhesive materials. For example, the first adhesive layer 184a and the second adhesive layer 184b can be formed from acrylic-based, silicone-based, or polyurethane-based adhesive materials, but are not limited thereto. The first adhesive layer 184a and the second adhesive layer 184b can be formed to a thickness of approximately 40 μm to 60 μm, but are not limited thereto.

[0117] like Figure 9B As shown, the second adhesive component 180b and the third adhesive component 180c may each include a base 182, a third adhesive layer 184c and a fourth adhesive layer 184d respectively disposed on the lower surface and the upper surface of the base 182, a second foam component 186b disposed on the upper surface of the fourth adhesive layer 184d, and a fifth adhesive layer 184e disposed on the upper surface of the second foam component 186b.

[0118] The base 182 can be formed of a flexible plastic material such as polyethylene terephthalate, but is not limited thereto. In this case, the base 182 can be formed to a thickness of 40 μm to 50 μm, but is not limited thereto.

[0119] The second foam component 186b can be formed from a resin such as a polyurethane-based resin or an acrylic-based resin, but is not limited thereto. In this case, the second foam component 186b can be formed to a thickness of approximately 250 μm to 350 μm, but is not limited thereto.

[0120] The third adhesive layer 184c, the fourth adhesive layer 184d, and the fifth adhesive layer 184e can be formed from various adhesive materials. For example, the third adhesive layer 184c, the fourth adhesive layer 184d, and the fifth adhesive layer 184e can be formed from acrylic-based, silicone-based, or polyurethane-based adhesive materials, but are not limited thereto. The third adhesive layer 184c, the fourth adhesive layer 184d, and the fifth adhesive layer 184e can be formed to a thickness of approximately 40 μm to 60 μm, but are not limited thereto.

[0121] Comparing the first adhesive component 180a with the second adhesive component 180b and the third adhesive component 180c, the first adhesive component 180a does not have a base 182, while the second adhesive component 180b and the third adhesive component 180c have a base 182. Depending on the presence or absence of the base 182, a modulus difference may occur between the first adhesive component 180a and the second adhesive component 180b and the third adhesive component 180c, and due to this modulus difference, peeling due to stress difference will not occur when the display module 110 is wound around the guide member 150.

[0122] The first adhesive component 180a, the second adhesive component 180b, and the third adhesive component 180c can be attached to the display panel PNL and the support member 130 while being spaced apart from each other by a predetermined distance d. The separation distance d is designed to prevent the first adhesive component 180a, the second adhesive component 180b, and the third adhesive component 180c from overlapping each other due to their different moduli when the first adhesive component 180a, the second adhesive component 180b, and the third adhesive component 180c are attached separately. The separation distance d can be determined based on the moduli of the first adhesive component 180a, the second adhesive component 180b, and the third adhesive component 180c.

[0123] The first adhesive members to the third adhesive members 180a, 180b, and 180c at the boundaries between the first support member 130a, the second support member 130b, and the third support member 130c can be formed in a serrated shape rather than a straight shape. Therefore, localized stresses concentrated at the boundaries between the first support member 130a, the second support member 130b, and the third support member 130c can be dispersed, thereby preventing the adhesive members (180) from peeling off at these boundaries.

[0124] The serrated shape at the boundary of the first adhesive component 180a, the second adhesive component 180b, and the third adhesive component 180c can be triangular, but it can also be formed into other shapes.

[0125] like Figure 10A and Figure 10B As shown, the serration shape can be rectangular or circular.

[0126] Figure 11 This is a view showing another structure of the adhesive component according to an embodiment of the present invention.

[0127] like Figure 11 As shown, the adhesive component 180 may include a first adhesive component 180a, a second adhesive component 180b, a third adhesive component 180c, and a fourth adhesive component 180d.

[0128] Here, the first adhesive member 180a and the second adhesive member 180b may be areas wound around the curved portion 151 of the guide member 150, while the third adhesive member 180c and the fourth adhesive member 180d may be flat areas rather than wound areas.

[0129] In the adhesive component 180 of this structure, the areas that wrap around the curved portion 151 of the guide component 150 can be separated from each other, thereby dispersing the stress that may be generated in these areas, i.e., the curved areas, and thus preventing the adhesive component 180 from peeling off.

[0130] As described above, in this invention, by changing the modulus of the adhesive member that attaches the support member to the display panel, the stress in the area wound into a curved shape can be minimized, thereby preventing the support member in the wound area from peeling off from the display panel.

[0131] Furthermore, by forming the boundaries of the adhesive components in different regions into a sawtooth shape, the local stress concentrated at the boundaries between regions can be dispersed, thereby more effectively preventing the adhesive material from peeling off at the boundary regions.

[0132] Furthermore, by preventing the peeling of adhesive components, the disposal of defective adhesive components that have peeled off can be prevented. Therefore, by preventing the disposal of hazardous substances, environmental friendliness becomes possible.

[0133] The above detailed description illustrates a sliding display device, but the invention is not limited to any particular display device. For example, the invention can be applied to various display devices, such as foldable, flexible, stretchable, and flexible display devices. When applied to such a display device, the modulus of the adhesive component in the deformable region (e.g., folded region, bent region, stretched region, or flexed region) can be set to be less than the modulus of the adhesive component in the non-deformable region, thereby preventing the adhesive component from peeling off due to stress.

[0134] It will be apparent to those skilled in the art that various modifications and variations can be made to this invention without departing from the spirit or scope thereof. Therefore, this invention is intended to cover modifications and variations thereof, provided they fall within the scope of the appended claims and their equivalents.

Claims

1. A display device, comprising: The display panel includes a first area that displays images and is deformable, and a second and a third area that are located outside the first area and are not deformable. A support member that supports the display panel; as well as An adhesive component that attaches the support component to the display panel. The adhesive component includes a first adhesive component corresponding to the first region of the display panel, and a second adhesive component and a third adhesive component respectively corresponding to the second region and the third region of the display panel. The modulus of the first adhesive component is less than the modulus of the second adhesive component and the modulus of the third adhesive component.

2. The display device according to claim 1, wherein, The first adhesive component to the third adhesive component are provided with double-sided adhesive tape.

3. The display device according to claim 2, wherein, The boundary surface between the first adhesive component and the third adhesive component is formed in a sawtooth shape.

4. The display device according to claim 3, wherein, The serrated shape includes one of the following: triangular, rectangular, and circular.

5. The display device according to claim 1, wherein, The first adhesive component includes: First foam component; and A first adhesive layer and a second adhesive layer, wherein the first adhesive layer is formed on the lower surface of the first foam member, and the second adhesive layer is formed on the upper surface of the first foam member.

6. The display device according to claim 5, wherein, The first adhesive component comprises two regions that are separate from each other.

7. The display device according to claim 1, wherein, The second adhesive component and the third adhesive component each include: Base; A third adhesive layer and a fourth adhesive layer, wherein the third adhesive layer is disposed on the lower surface of the base and the fourth adhesive layer is disposed on the upper surface of the base; A second foam component, wherein the second foam component is disposed on the fourth adhesive layer; and A fifth adhesive layer is disposed on the second foam component.

8. The display device according to claim 5, wherein, The first foam component is formed of resin.

9. The display device according to claim 7, wherein, The second foam component is formed of resin.

10. The display device according to claim 7, wherein, The base is formed of a flexible plastic material.

11. The display device according to claim 1, wherein, The support member is made of metal.

12. The display device according to claim 11, wherein, The support member includes: A first support member, the first support member being attached to the first adhesive member at its first surface; A second support member, the second support member being attached to the second adhesive member at its first surface; and A third support member is attached to the third adhesive member at its first surface.

13. The display device according to claim 12, wherein, Multiple chamfers are formed on the second surface of the first support member that is opposite to the first surface of the first support member.

14. The display device according to claim 13, wherein, The chamfer is formed into a trapezoidal shape and penetrates the first support member.

15. The display device according to claim 13, wherein, The display panel is a sliding display panel.

16. The display device according to claim 15, further comprising: A housing for accommodating the display panel; as well as A guide member that guides the display panel into the housing and winds the display panel.

17. The display device according to claim 16, wherein, The guide member is formed in a cylindrical shape and includes a curved portion, around which the display panel is rolled.

18. The display device according to claim 17, wherein, The width and spacing of the plurality of chamfers are determined according to the curvature of the curved portion.

19. The display device according to claim 1, wherein, The modulus of the second adhesive component is the same as that of the third adhesive component.

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