Display device

Abstract

The utility model relates to a display device. The display device includes: a display module; a plate including a base portion and first and second side walls protruding downward from the base portion to face each other, and disposed below the display module; chain units disposed between the first side wall and the second side wall to be spaced apart from each other in a first direction, each extending in a second direction crossing the first direction to be coupled to the first side wall and the second side wall; and a roller including protrusions interposed between the chain units and disposed adjacent to each other, and overlapping the base portion. And a display module overlapping the base portion, the base portion, the first sidewall, and the second sidewall being curved relative to the roller.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2023-0077275, filed on Jun. 16, 2023, and all benefits arising therefrom, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present disclosure relates to a display device, and more particularly, to a display device capable of performing a sliding operation. Background Art

[0004] A display device such as a smart phone, a laptop, a navigation system, or a smart TV provides an image to a user through a display screen. The display device may include a display panel that generates an image.

[0005] Recently, with the development of technology, display devices with various forms are being developed. For example, flexible display devices that can be folded or rolled are being developed. Flexible display devices whose shapes can be changed in various ways are easy to carry, and thus improve user convenience.

[0006] The expandable flexible display device among the flexible display devices can accommodate at least a part of the display module in the housing as needed, or pull at least a part of the display device out of the housing by using the folding property of the display module. Therefore, the user can expand the display screen as needed. Utility Model Content

[0007] Embodiments of the present disclosure provide a display device in which a recessed portion of a surface of a display module is minimized and thus a surface quality is improved and a structure of a sliding portion is simplified.

[0008] An embodiment of the present disclosure provides a display device, which includes: a display module; a plate, including a base part and a first side wall and a second side wall protruding downward from the base part to face each other, and arranged below the display module; chain units, which are arranged between the first side wall and the second side wall to be spaced apart from each other and oriented along a first direction, and each extends along a second direction intersecting the first direction to be connected to the first side wall and the second side wall; and a roller, including protrusions inserted between the chain units and arranged to be adjacent to each other, and overlapping with the base part, and the display module, the base part, the first side wall and the second side wall overlapping with the base part are bent relative to the roller.

[0009] In an embodiment, the chain units may each include a coupling portion extending in the second direction and defining a chain groove therein, and a pin inserted into the chain groove, and one end and the other end of the pin facing each other in the second direction and protruding from the coupling portion.

[0010] In an embodiment, the first side wall and the second side wall may respectively include pin holes penetrating at least a portion of the first side wall and the second side wall, and one end and the other end of each of the pins are inserted into the pin holes.

[0011] In an embodiment, the pin may further include a first fixing portion and a second fixing portion, the first fixing portion fixing one end portion and the first side wall, and the second fixing portion fixing the other end portion and the second side wall.

[0012] In an embodiment, the pin may have a circular shape or a polygonal shape in cross section, and the pin hole and the chain groove may have shapes corresponding to the shape of the pin.

[0013] In an embodiment, the connecting portion may include a first guide portion disposed adjacent to one end, a second guide portion disposed adjacent to the other end, and a central portion disposed between the first guide portion and the second guide portion, wherein a width of the central portion in the second direction may be greater than a width of the first guide portion in the second direction and a width of the second guide portion in the second direction.

[0014] In an embodiment, the protrusions may be inserted between the central portions to be disposed along the circumference of the roller.

[0015] In an embodiment, the first guide portion and the second guide portion may contact a rear surface of the base portion, and wherein the central portion may not contact the rear surface.

[0016] In an embodiment, the connecting portion may include guide portions spaced apart from each other in the second direction, and a central portion disposed between the guide portions disposed adjacent to each other along the second direction, wherein the protrusions may be arranged to be separated from each other along the second direction and disposed adjacent to the circumference of the roller, wherein the protrusions may be respectively inserted between the central portions to be disposed along the circumference of the roller.

[0017] In an embodiment, when the roller rotates, a coupling portion provided between the protrusions and a pin inserted in the coupling portion may rotate.

[0018] In an embodiment, the chain units may each include a connecting portion and a pin, the connecting portion including a first guide portion, a second guide portion, and a central portion arranged between the first guide portion and the second guide portion, and a chain groove is defined in the connecting portion, the pin is inserted into the chain groove, wherein the connecting portions may be spaced apart from each other along the second direction, and wherein the pin may be exposed between the connecting portions arranged to be adjacent to each other along the second direction.

[0019] In an embodiment, a width of each of the protrusions in the second direction may be equal to or smaller than a width of the central portion in the second direction.

[0020] In an embodiment, when the roller rotates, a portion of the base portion bent by the roller, the display module overlapped with the base portion, the first side wall, and the second side wall may be variable.

[0021] In an embodiment, the protrusion may have a triangular shape or a trapezoidal shape in cross section.

[0022] In an embodiment, the base portion, the first side wall and the second side wall may be integrally provided.

[0023] In an embodiment, the display module may include: an electronic panel including a display panel configured to provide an image, an input sensing portion configured to sense external input, and an anti-reflection layer disposed on the input sensing portion; an impact absorbing layer disposed on the electronic panel; a window disposed on the impact absorbing layer; and a panel protective layer disposed under the electronic panel.

[0024] In an embodiment, when the roller rotates to change from a first mode to a second mode, the area of ​​the display module may increase, wherein the number of chain units disposed adjacent to the window in the second mode may be greater than the number of chain units disposed adjacent to the window in the first mode.

[0025] In an embodiment, the display device may further include a flexible circuit board connected to one end of the display module and a driving chip connected to the flexible circuit board, wherein a portion of the display panel adjacent to one end connected to the flexible circuit board may be bent to face the rear surface of the board.

[0026] In an implementation, the display device may further include an adhesive layer disposed between the display module and the board, wherein the adhesive layer may include a pressure sensitive adhesive (PSA) or an optically clear adhesive (OCA).

[0027] In an embodiment, the plate may comprise stainless steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. In the drawings:

[0029] Figure 1A is a perspective view of a display device according to an embodiment;

[0030] Figure 1B is a perspective view of a display device according to an embodiment;

[0031] Figure 2A According to the implementation method Figure 1AA cross-sectional view of the display device taken along line II';

[0032] Figure 2B According to the implementation method Figure 1B A cross-sectional view of the display device taken along II-II';

[0033] Figure 3 is a cross-sectional view of a display module according to an embodiment;

[0034] Figure 4 is a cross-sectional view of an electronic panel according to an embodiment;

[0035] Figure 5 is a cross-sectional view of a display panel according to an embodiment;

[0036] Figure 6 is a plan view of a display panel according to an embodiment;

[0037] Fig. 7A is an exploded perspective view of a display device according to an embodiment;

[0038] Figure 7B is a plan view showing a coupling relationship between a plate and a chain unit according to an embodiment;

[0039] Fig. 8A is a perspective view showing a configuration of a display device according to an embodiment;

[0040] Figure 8B is a perspective view showing a configuration of a display device according to an embodiment;

[0041] Fig. 9 is a perspective view showing a chain unit according to an embodiment;

[0042] Fig. 10A is an exploded perspective view of a display device according to an embodiment;

[0043] Fig. 10B is a plan view showing a coupling relationship between a plate and a chain unit according to an embodiment;

[0044] Fig.11A is a perspective view of a chain unit according to an embodiment;

[0045] Fig. 11B is an exploded perspective view of a pin according to an embodiment;

[0046] Fig. 12A is a perspective view showing a configuration of a display device according to an embodiment;

[0047] Fig. 12B is a cross-sectional view showing an arrangement relationship between a roller and a plate according to an embodiment;

[0048] Fig.13 is a cross-sectional view showing an arrangement relationship between a roller and a plate according to an embodiment; and

[0049] Fig.14 is a perspective view showing an arrangement relationship between a roller and a plate according to an embodiment. DETAILED DESCRIPTION

[0050] The present disclosure will now be described more fully below with reference to the accompanying drawings, in which various embodiments are shown. However, the present disclosure can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0051] In this specification, when a component (or region, layer, part, etc.) is referred to as being "on", "connected" or "coupled" to another component, it means that it is directly placed / connected / coupled to the other component or a third component may be disposed therebetween.

[0052] The same reference numerals or symbols represent the same elements. In addition, in the drawings, in order to effectively describe the technical content, the thickness, proportion and size of the components are exaggerated. "And / or" includes all combinations of one or more of the contents that can define the related elements.

[0053] Terms such as first and second can be used to describe various components, but these components should not be limited by these terms. These terms are only used for the purpose of distinguishing one component from other components. For example, a first component can be referred to as a second component, and similarly, a second component can be referred to as a first component without departing from the scope of the present disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0054] In addition, terms such as "below", "lower", "above", and "upper" are used to describe the relationship between components shown in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0055] Terms such as “include” or “have” are intended to specify the presence of features, quantities, steps, actions, components, parts, or a combination thereof described in the specification, and it should be understood that they do not exclude the possibility of the presence or addition of one or more other features, quantities, steps, operations, components, parts, or a combination thereof.

[0056] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this specification have the same meaning as those generally understood by ordinary technicians in the field to which the present disclosure belongs. In addition, terms, such as those defined in commonly used dictionaries, should be interpreted as having the same meaning as in the context of the relevant technology, and should not be interpreted as being too ideal or too formal unless explicitly defined herein.

[0057] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0058] Figure 1A is a perspective view of a display device according to an embodiment. Figure 1B is a perspective view of a display device according to an embodiment. Figure 1A is a perspective view of the display device DD operating in the first mode, and Figure 1B is a perspective view of the display device DD operating in the second mode.

[0059] In an embodiment, the display device DD can be activated in response to an electrical signal and display an image. The display device DD may include various examples. For example, the display device DD may be not only a large device such as a TV or a billboard, but also a small and medium-sized device such as a monitor, a smart phone, a tablet computer, a navigation system, or a game console. In an embodiment, a smart phone capable of performing a sliding operation is exemplarily shown as a display device DD. However, the present disclosure is not limited thereto, and the display device DD is not limited to any one embodiment, as long as a flexible display module (such as a rollable display device) is included.

[0060] In an embodiment, and with reference to Figure 1A and Figure 1B , the display device DD may include a display module DM and a case CS in which the display module DM is accommodated. At least a portion of the display module DM may be exposed to the outside through a display opening C-OP defined in an upper portion of the case CS.

[0061] In an embodiment, the housing CS may include a first housing CS1 and a second housing CS2. The first housing CS1 and the second housing CS2 may be coupled to each other to accommodate the display module DM. The first housing CS1 may be coupled to the second housing CS2 so as to be movable in a direction parallel to the first direction DR1. The first housing CS1 may be coupled to the second housing CS2 to move closer to or further away from the second housing CS2 according to a user's use state.

[0062] In an embodiment, the display surface of the display module DM exposed by the display opening C-OP may be parallel to each of the first direction DR1 and the second direction DR2 crossing the first direction DR1. The display module DM may display an image toward a third direction DR3 on the display surface oriented parallel to the first direction DR1 and the second direction DR2.

[0063] In the present disclosure, the third direction DR3 may be defined as a direction substantially perpendicular to a plane defined by the first direction DR1 and the second direction DR2. In an embodiment, the front surface (or upper surface) and the rear surface (or lower surface) of each member constituting the display device DD may be opposite to each other in the third direction DR3, and the normal direction of each of the front surface and the rear surface may be substantially parallel to the third direction DR3. The distance between the front surface and the rear surface defined along the third direction DR3 may correspond to the thickness of the member (or unit).

[0064] In the present disclosure, the wording "on a plane" may be defined as a state observed in the third direction DR3. In the present disclosure, the wording "on a cross-section" may be defined as a state observed in the first direction DR1 or the second direction DR2. Meanwhile, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 are relative concepts and may be changed to other directions.

[0065] In an embodiment, and with reference to Figure 1A and Figure 1B The area of ​​the display surface of the display module DM exposed by the display opening C-OP of the housing CS may change according to the movement of the first housing CS1 relative to the second housing CS2. When the first housing CS1 becomes farther away from the second housing CS2, the opening area of ​​the display opening C-OP may become larger in the first direction DR1.

[0066] In an embodiment, the display module DM may be a flexible display module. The display module DM may be formed by a support plate (or plate) PL (see Figure 2A ) and can be supported by rollers RL (see Figure 2A ) changes the area of ​​the display surface visible to the user.

[0067] In the present disclosure, a state in which the area of ​​the display module DM visible to the user is reduced may be defined as a "first mode". In an embodiment, in one state of the first mode, the area of ​​the display module DM visible to the user may be the smallest. In addition, a state in which the area of ​​the display module DM visible to the user is increased may be defined as a "second mode". In one state of the second mode, the area of ​​the display module DM visible to the user may be the largest.

[0068] In an embodiment, a mode change between a first mode and a second mode in the display device DD can be performed by moving the first shell CS1 relative to the second shell CS2 in a first direction DR1 while grasping or remotely controlling at least any one of the first shell CS1 and the second shell CS2 by a separate motor or the like, and such a mode change is not limited to any one embodiment.

[0069] Figure 2A According to the implementation method Figure 1A A cross-sectional view of the display device taken along line II'. Figure 2B According to the implementation method Figure 1B A cross-sectional view of the display device taken along line II-II'.

[0070] In an embodiment, and with reference to Figure 2A and Figure 2B The display device DD may include a case CS, a display module DM, a roller RL, and a support module accommodated in the case CS, wherein the support module is disposed under the display module DM to support the display module DM. The support module may guide the change in shape of the display module DM while repeating a sliding operation.

[0071] In an embodiment, the display device DD may include a display module DM, a first case CS1 and a second case CS2, a roller RL, a plate PL, an adhesive layer AL, a chain unit CU including pins PIN (see Fig. 7A ), flexible circuit board FPC, driving chip D-IC and spacer C-SP.

[0072] In an embodiment, the display module DM may be flexible. The display module DM may include a first area AA1, a second area AA2, and a third area AA3. The first area AA1 and the third area AA3 of the display module DM may be accommodated in the case CS (see FIG. 2 ) in a state where each of them is partially bent. Figure 1A )middle.

[0073] According to an embodiment, the first area AA1 may be defined as an area of ​​the display module DM whose shape is changed corresponding to the curved surface of the roller RL when the operation state is changed according to the first mode and the second mode. The second area AA2 may be defined as an area of ​​the display module DM whose shape remains flat in the first mode and the second mode. Therefore, when the mode is changed, the section where the area of ​​the display surface of the display device DD increases or decreases may correspond to the first area AA1 of the display module DM.

[0074] However, the present disclosure is not limited thereto, and in an embodiment, in a rollable display device, the shape of the entire area of ​​the first area AA1 and the second area AA2 can be changed corresponding to the curved surface of the roller RL and accommodated in the housing while being wound around the roller RL, but such shape change is not limited to any one embodiment.

[0075] In an embodiment, the third area AA3 may be an area bent with respect to an imaginary axis extending in the second direction DR2. The third area AA3 may be bent to face the rear surface of the panel PL.

[0076] In an embodiment, the flexible circuit board FPC may be connected to the third area AA3 of the display module DM. The pad included in the flexible circuit board FPC may be connected to the pad included in the display panel DP (see FIG. 1 ) via an anisotropic conductive film (ACF). Figure 6 ) in the pad PD (see Figure 6 ). The display module DM may be coupled to the panel PL through an adhesive layer AL. The adhesive layer AL may include a pressure sensitive adhesive (PSA) or an optically clear adhesive (OCA), but the type of the adhesive is not limited thereto.

[0077] In an embodiment, the driving chip D-IC may be connected to the flexible circuit board FPC. The driving chip D-IC may include a chip for driving the display panel DP (see Figure 6 ) element. The driving chip D-IC may be coupled to the display module DM through an adhesive layer AD, but the present disclosure is not limited thereto. The driving chip D-IC may be mounted on the third area AA3 of the display module DM, and in this case, the flexible circuit board FPC may be omitted.

[0078] In an embodiment, the display device DD may further include a spacer C-SP for maintaining a shape when in a curved state of the third area AA3. The spacer C-SP may be disposed between one end of the third area AA3 and the rear surface of the panel PL, and may support the display module DM to maintain the curved state of the third area AA3. The spacer C-SP may be omitted in the display device DD according to an embodiment, and the spacer C-SP is not limited to any one embodiment.

[0079] In an embodiment, the plate PL may be disposed under the display module DM. When the operation state of the display device DD is changed by the roll RL, the plate PL may support the display module DM to prevent the shape of the display module DM from being changed.

[0080] In an embodiment, since the panel PL does not contact the roller RL and only the structure disposed under the panel PL contacts the roller RL, the force applied during the rotation of the roller RL may not be transmitted to the panel PL or the display module DM and may be transmitted only to the structure disposed under the panel PL. This will be described in detail later.

[0081] In an embodiment, the display device DD may include a chain unit CU including pins PIN (see Fig. 7A ). Chain unit CU (see Fig. 7A ) may each include a connecting portion CM (see Fig. 7A ) and pin PIN, and connecting part CM (see Fig. 7A ) can be connected to the plate PL by pin PIN. Chain unit CU (see Fig. 7A ) can rotate in accordance with the rotation of the roller RL in a state where the chain units CU are each coupled to the plate PL. This will be described in detail later.

[0082] In an embodiment, the roller RL may be disposed between the curved portions of the plate PL. As the roller RL rotates, the shapes of the plate PL and the display module DM may change. The roller RL may be accommodated in the second housing CS2. The roller RL may rotate around an imaginary rotation axis RX extending along the second direction DR2. The roller RL may be coupled to at least one of the first housing CS1 and the second housing CS2, and thus may rotate around the rotation axis RX according to a sliding operation by which the first housing CS1 moves away from or close to the second housing CS2.

[0083] In an embodiment, the roller RL may include a rotating portion RU having a cylindrical shape, and chain units CU (see FIG. 1 ) protruding from the rotating portion RU and respectively inserted into adjacent chain units CU. Fig. 7A ). Since the protrusion PT is inserted between the adjacent chain units CU during the rotation of the roller RL, the roller RL can be stably coupled to the plate PL. This will be described in detail later.

[0084] In an embodiment, the display device DD may be Figure 2A The first mode shown moves to Figure 2B The second mode is shown, in which the first shell CS1 and the second shell CS2 move away from each other along the first direction DR1. According to an embodiment, when the display device DD changes the operating state from the first mode to the second mode, since the portion of the display module DM disposed under the roller RL slides due to the roller RL and is disposed above the roller RL, the area of ​​the display module DM observed by the user can be increased.

[0085] In an embodiment, when the display device DD changes the operation state from the first mode to the second mode, one end of the second area AA2 spaced apart from the first area AA1 may be fixed to the first case CS1 and move together with the first case CS1. In this case, one end of the first area AA1 spaced apart from the second area AA2 may move in a direction opposite to a direction toward one end of the second area AA2 coupled to the first case CS1.

[0086] According to an embodiment, a portion of the display surface corresponding to the first area AA1 may be exposed to the outside in the first mode, and when the operation mode is changed from the first mode to the second mode, the area of ​​the first area AA1 exposed to the outside through the display opening C-OP may increase. However, the present disclosure is not limited thereto, and the display surface corresponding to the first area AA1 may not be exposed to the outside in the first mode.

[0087] Figure 3 is a cross-sectional view of a display module according to an embodiment. Figure 4 is a cross-sectional view of an electronic panel according to an embodiment. Figure 5 is a cross-sectional view of a display panel according to an embodiment. Figure 6 is a plan view of a display panel according to an embodiment.

[0088] In an embodiment, and with reference to Figure 3 , the display module DM may include an electronic panel EP, an impact absorbing layer ISL, a panel protection layer PPL, a window WIN, a window protection layer WP, a hard coating layer HC, and first to fourth adhesive layers AL1 to AL4.

[0089] In an embodiment, the electronic panel EP may display an image. The electronic panel EP may include a display panel, an input sensing portion, and an anti-reflection layer, and will be referred to later. Figure 4 The configuration of this electronic panel EP is described.

[0090] In an embodiment, a shock absorbing layer ISL may be disposed on the electronic panel EP. The shock absorbing layer ISL may absorb external shock applied from the window WIN to the electronic panel EP to protect the electronic panel EP. The shock absorbing layer ISL may be manufactured in the form of a stretch film.

[0091] In an embodiment, the impact absorbing layer ISL may include a flexible plastic material. The flexible plastic material may be defined as a synthetic resin film. For example, the impact absorbing layer ISL may include a flexible plastic material such as polyimide or polyethylene terephthalate.

[0092] In an embodiment, the window WIN may be disposed on the impact absorbing layer ISL. The window WIN may protect the electronic panel EP from external scratches. The window WIN may be optically transparent. The window WIN may include glass. However, the present disclosure is not limited thereto, and the window WIN may include a synthetic resin film.

[0093] In an embodiment, the window WIN may have a single-layer or multi-layer structure. For example, the window WIN may include a plurality of synthetic resin films bonded with an adhesive, or a glass substrate and a synthetic resin film bonded with an adhesive.

[0094] In an embodiment, the window protection layer WP may be disposed on the window WIN. The window protection layer WP may include a flexible plastic material, such as polyimide or polyethylene terephthalate. The hard coating layer HC may be disposed on the upper surface of the window protection layer WP. The hard coating layer HC may include any one of an organic compound, an inorganic compound, and an organic-inorganic complex compound. For example, the hard coating layer HC may include an acrylic compound, an epoxy-based compound, or a combination thereof. In another embodiment, the hard coating layer HC may include any one of silicon nitride, silicon oxynitride, silicon oxide, zirconium oxide, aluminum oxide, tantalum oxide, niobium oxide, and glass beads.

[0095] In an embodiment, the printing layer PIT may be disposed on the lower surface of the window protection layer WP. The printing layer PIT may have a black color, but the color of the printing layer PIT is not limited thereto. The printing layer PIT may be disposed adjacent to a boundary of the window protection layer WP. The printing layer PIT may overlap the non-display area NDA.

[0096] In an embodiment, the panel protection layer PPL may be disposed below the electronic panel EP. The panel protection layer PPL may protect the lower portion of the electronic panel EP. The panel protection layer PPL may include a flexible plastic material. For example, the panel protection layer PPL may include polyimide or polyethylene terephthalate.

[0097] In an embodiment, the first adhesive layer AL1 may be disposed between the window protection layer WP and the window WIN. The window protection layer WP and the window WIN may be bonded to each other through the first adhesive layer AL1. The first adhesive layer AL1 may cover the print layer PIT.

[0098] In an embodiment, the second adhesive layer AL2 may be disposed between the window WIN and the shock absorbing layer ISL. The window WIN and the shock absorbing layer ISL may be bonded to each other by the second adhesive layer AL2.

[0099] In an embodiment, a third adhesive layer AL3 may be disposed between the impact absorbing layer ISL and the electronic panel EP. The impact absorbing layer ISL and the electronic panel EP may be bonded to each other through the third adhesive layer AL3.

[0100] In an implementation, a fourth adhesive layer AL4 may be disposed between the electronic panel EP and the panel protection layer PPL. The electronic panel EP and the panel protection layer PPL may be bonded to each other through the fourth adhesive layer AL4.

[0101] In an embodiment, the first to fourth adhesive layers AL1 to AL4 may each include a pressure sensitive adhesive (PSA) or an optically clear adhesive (OCA), but the type of the adhesive is not limited thereto.

[0102] In an embodiment, and with reference to Figure 4 , the electronic panel EP may include a display panel DP, an input sensing part ISP disposed on the display panel DP, and an anti-reflection layer RPL disposed on the input sensing part ISP. Figure 4 A cross section of the electronic panel EP viewed in the first direction DR1 is exemplarily shown.

[0103] In an embodiment, the display panel DP may be flexible. For example, the display panel DP may include a flexible substrate and a plurality of elements disposed on the flexible substrate.

[0104] In an embodiment, the display panel DP may be an emissive display panel, but is not particularly limited thereto. For example, the display panel DP may be an organic light emitting display panel or an inorganic light emitting display panel. The light emitting layer of the organic light emitting display panel may include an organic light emitting material. The light emitting layer of the inorganic light emitting display panel may include quantum dots, quantum rods, etc. Hereinafter, the display panel DP will be described as an organic light emitting display panel.

[0105] In an embodiment, the input sensing part ISP may include a plurality of sensing parts (not shown) for sensing external input. For example, the input sensing part ISP may sense the external input in a capacitive manner, but the sensing of the input sensing part ISP is not limited thereto. When manufacturing the electronic panel EP, the input sensing part ISP may be directly formed on the electronic panel EP.

[0106] In an embodiment, an anti-reflection layer RPL may be provided on the input sensing part ISP. When manufacturing the electronic panel EP, the anti-reflection layer RPL may be directly formed on the input sensing part ISP. The anti-reflection layer RPL may be defined as an anti-reflection film for external light. The anti-reflection layer RPL may reduce the reflectivity of external light entering the display panel DP from above the display device DD.

[0107] In an embodiment, when external light traveling toward the display panel DP is reflected on the display panel DP and provided to an external user again, the user can observe the external light like a mirror. To prevent this phenomenon, the anti-reflection layer RPL may include, for example, a plurality of color filters presenting the same color as the pixels of the display panel DP.

[0108] In an embodiment, the color filter may perform filtering so that the external light becomes light having the same color as the pixel. In this case, the external light may not be visible to the user. However, the present disclosure is not limited thereto, and the anti-reflection layer RPL may include a retarder and / or a polarizer to reduce the external light reflectivity.

[0109] For example, in an embodiment, the input sensing part ISP may be directly formed on the display panel DP, and the anti-reflection layer RPL may be directly formed on the input sensing part ISP, but the present disclosure is not limited thereto. For example, in another embodiment, the input sensing part ISP may be separately manufactured and attached to the display panel DP through an adhesive layer, and the anti-reflection layer RPL may be separately prepared and attached to the input sensing part ISP through an adhesive layer.

[0110] Figure 5 It is shown according to the embodiment Figure 4 A cross-sectional view of a display panel showing a configuration of a display panel.

[0111] Figure 5 A cross section of the display panel DP viewed in the first direction DR1 according to an embodiment is exemplarily shown.

[0112] In an embodiment, and with reference to Figure 5 The display panel DP may include a substrate SUB, a circuit element layer DP-CL disposed on the substrate SUB, a display element layer DP-OLED disposed on the circuit element layer DP-CL, and a thin film encapsulation layer TFE disposed on the display element layer DP-OLED.

[0113] In an implementation, the substrate SUB may include a display area DA and a non-display area NDA surrounding the display area DA. The substrate SUB may include a flexible plastic material such as polyimide. The display element layer DP-OLED may be disposed in the display area DA on the substrate SUB.

[0114] In an embodiment, the display panel DP may include a plurality of insulating layers, semiconductor patterns, conductive patterns, signal lines, etc. The insulating layers, semiconductor layers, and conductive layers are formed by coating, deposition, etc. Thereafter, the insulating layers, semiconductor layers, and conductive layers may be selectively patterned by photolithography and etching. In this manner, semiconductor patterns, conductive patterns, signal lines, etc. included in the circuit element layer DP-CL and the display element layer DP-OLED are formed.

[0115] In an embodiment, the circuit element layer DP-CL includes at least one insulating layer and a circuit element. The insulating layer includes at least one inorganic layer and at least one organic layer. The circuit element includes a signal line, a driving circuit of a pixel, and the like.

[0116] In an embodiment, the display element layer DP-OLED includes a conductive partition wall and a light emitting element. The light emitting element may include an anode, a light emitting pattern and a cathode, and the light emitting pattern may include at least one light emitting layer.

[0117] In an embodiment, the thin film encapsulation layer TFE includes a plurality of thin films, some of which are configured to improve optical efficiency, and others of which are configured to protect the organic light emitting diode.

[0118] In an embodiment, a plurality of pixels may be provided in the display area DA. The pixels may be connected to transistors provided in the circuit element layer DP-CL, and may include light emitting elements provided in the display element layer DP-OLED.

[0119] In an embodiment, the thin film encapsulation layer TFE may be disposed on the circuit element layer DP-CL to cover the display element layer DP-OLED. The thin film encapsulation layer TFE may include an inorganic layer and an organic layer between the inorganic layers. The inorganic layer may protect the pixel from moisture / oxygen. The organic layer may protect the pixel from foreign matter such as dust particles.

[0120] Figure 6 According to the implementation method Figure 5 A plan view of the display panel is shown.

[0121] In an embodiment, and with reference to Figure 6 , the display device DD may include a display panel DP, a scan driver SDV, a data driver DDV, a light emitting driver EDV, and a plurality of pads PD.

[0122] In an embodiment, the display panel DP may have a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the second direction DR2, but the shape of the display panel DP is not limited thereto. The display panel DP may include a display area DA and a non-display area NDA surrounding the display area DA.

[0123] In an embodiment, the display panel DP may include a plurality of pixels PX, a plurality of scan lines SL1 to SLm, a plurality of data lines DL1 to DLn, a plurality of emission lines EL1 to ELm, first and second control lines CSL1 and CSL2, first and second power lines PLL1 and PLL2, and a connection line CNL. m and n are natural numbers greater than 0.

[0124] In an embodiment, the pixel PX may be disposed in the display area DA. The scanning driver SDV and the light emitting driver EDV may be disposed in the non-display area NDA to be respectively disposed adjacent to the long sides of the display panel DP. The data driver DDV may be disposed in the non-display area NDA to be adjacent to any one of the short sides of the display panel DP. When viewed on a plane, the data driver DDV may be disposed adjacent to the lower end of the display panel DP.

[0125] In an embodiment, and with reference to Figure 6 The accommodating portion AMP may be defined as a non-display area NDA disposed adjacent to a lower end of the display panel DP. The data driver DDV may be disposed in the accommodating portion AMP.

[0126] In an embodiment, the scan lines SL1 to SLm may extend in the second direction DR2 to be connected to the pixels PX and the scan driver SDV. The data lines DL1 to DLn may extend in the first direction DR1 to be connected to the pixels PX and the data driver DDV. The emission lines EL1 to ELm may extend in the second direction DR2 to be connected to the pixels PX and the emission driver EDV.

[0127] In an implementation, the first power line PLL1 may extend in the first direction DR1 to be disposed in the non-display area NDA. The first power line PLL1 may be disposed between the display area DA and the light emitting driver EDV.

[0128] In an embodiment, the connection line CNL may extend in the second direction DR2 and be arranged in the first direction DR1 to be connected to the first power line PLL1 and the pixel PX. A first voltage may be applied to the pixel PX through the first power line PLL1 and the connection line CNL connected to each other.

[0129] In an embodiment, the second power line PLL2 may be disposed in the non-display area NDA and may extend along a long side of the display panel DP and another short side of the display panel DP where the data driver DDV is not disposed. The second power line PLL2 may be disposed outside the scan driver SDV and the light emitting driver EDV.

[0130] Although not shown, in an embodiment, the second power line PLL2 may extend toward the display area DA to be connected to the pixel PX. A second voltage having a level lower than the first voltage may be applied to the pixel PX through the second power line PLL2.

[0131] In an embodiment, the first control line CSL1 may be connected to the scan driver SDV and extend toward the lower end of the display panel DP. The second control line CSL2 may be connected to the light emitting driver EDV and extend toward the lower end of the display panel DP. The data driver DDV may be disposed between the first control line CSL1 and the second control line CSL2.

[0132] In an embodiment, the pad PD may be disposed in the non-display area NDA to be disposed adjacent to the lower end of the display panel DP and adjacent to the lower end of the display panel DP than the data driver DDV. The data driver DDV, the first power line PLL1, the second power line PLL2, the first control line CSL1, and the second control line CSL2 may be connected to the pad PD. The data lines DL1 to DLn may be connected to the data driver DDV, and the data driver DDV may be connected to the pad PD corresponding to the data lines DL1 to DLn.

[0133] Although not shown, in an embodiment, the display device DD may further include a timing controller for controlling operations of the scan driver SDV, the data driver DDV, and the light emitting driver EDV, and a voltage generating unit for generating a first voltage and a second voltage. The timing controller and the voltage generating unit may be connected via a flexible circuit board FPC (see Figure 2A ) is connected to pad PD.

[0134] In an embodiment, the scan driver SDV may generate a plurality of scan signals, and the scan signals may be applied to the pixels PX through the scan lines SL1 to SLm. The data driver DDV may generate a plurality of data voltages, and the data voltages may be applied to the pixels PX through the data lines DL1 to DLn. The light emitting driver EDV may generate a plurality of light emitting signals, and the light emitting signals may be applied to the pixels PX through the light emitting lines EL1 to ELm.

[0135] In an embodiment, the pixel PX may receive a data voltage in response to a scan signal, and the pixel PX may display an image by emitting light having brightness corresponding to the data voltage in response to a light emitting signal.

[0136] Fig. 7A is an exploded perspective view of a display device according to an embodiment. Figure 7B is a plan view illustrating a coupling relationship of a plate and a chain unit according to an embodiment. Fig. 7A and Figure 7B It is used to describe the Figure 2A A diagram showing the connection relationship between the panel PL and the chain unit CU in the display device DD shown.

[0137] In an embodiment, and with reference to Fig. 7A , an adhesive layer AL may be provided between the display module DM and the panel PL. The display module DM and the panel PL may be coupled by the adhesive layer AL. The adhesive layer AL may include any one of a pressure sensitive adhesive (PSA) and an optically clear adhesive (OCA).

[0138] In an embodiment, the plate PL may be disposed under the display module DM. The plate PL may include a first portion PM1, a second portion PM2, a first side wall PS1, and a second side wall PS2. The plate PL may be substantially provided as a single plate or provided as an integral shape, and for ease of explanation, each region will be described separately. The plate PL according to an embodiment may include stainless steel.

[0139] In an embodiment, the first portion PM1 may overlap the first area AA1 of the display module DM. Therefore, when the shape of the first area AA1 of the display module DM changes corresponding to the curved surface of the roll RL, the shape of the first portion PM1 may change corresponding to the curved surface of the roll RL together with the first area AA1.

[0140] In an embodiment, the second portion PM2 may overlap the second area AA2. The second portion PM2 may be defined as a region that maintains a flat state together with the second area AA2 in the first mode and the second mode. In the present disclosure, the first portion PM1 and the second portion PM2 of the panel PL may be defined as a "base portion". In an embodiment, the second portion PM2 is arranged to overlap the window WIN (see FIG. 1 ). Figure 3 ) can be greater than the number of chain units CU adjacent to the window WIN in the first mode (see Figure 3 )The number of adjacent chain units CU.

[0141] In an embodiment, the panel PL may include a first side wall PS1 and a second side wall PS2 spaced apart from each other in the second direction DR2 with the first portion PM1 therebetween. The first side wall PS1 and the second side wall PS2 may protrude downward from the base portion.

[0142] In an embodiment, when the shape of the first portion PM1 is changed to correspond to the curved surface of the roll RL, the shapes of the first and second sidewalls PS1 and PS2 may be changed together with the first portion PM1 to correspond to the curved surface of the roll RL.

[0143] According to an embodiment, the thickness of the first side wall PS1 and the second side wall PS2 in the third direction DR3 may be greater than the thickness of the first portion PM1. The surfaces of the first side wall PS1 and the second side wall PS2 facing the display module DM may define the same plane as the surface of the first portion PM1 facing the display module DM, and in a state where the display module DM is bent around the roll RL, the lower surface of each of the first side wall PS1 and the second side wall PS2 may be thicker than the first portion PM1 (see FIG. Figure 2A ) faces the lower surface of the roller RL (see Figure 2A )'s center protrudes further downward.

[0144] According to an embodiment, a pin hole PH at least partially penetrating the first side wall PS1 and the second side wall PS2 in a direction from the inner surface toward the outer surface may be defined in each of the first side wall PS1 and the second side wall PS2, the inner surface and the outer surface facing each other in the second direction DR2. The pin hole PH may be formed in a portion of the first side wall PS1 and the second side wall PS2 protruding downward from the first portion PM1.

[0145] In an embodiment, the chain units CU may be disposed between the first side wall PS1 and the second side wall PS2 and below the plate PL overlapping the first portion PM1. The chain units CU may be arranged along the first direction DR1 and each extend along the second direction DR2.

[0146] In an embodiment, the chain units CU may each include a pin PIN and a coupling portion CM. A chain groove into which the pin PIN may be inserted may be defined in the coupling portion CM. The shape of the chain groove may correspond to the shape of the pin PIN on a cross section taken along the first direction DR1.

[0147] In an embodiment, the coupling portion CM may include a first guide portion GD1, a second guide portion GD2, and a central portion CP. The first guide portion GD1 may be disposed adjacent to one end of the pin PIN (which is coupled to the pin hole PH defined in the first side wall PS1), and the second guide portion GD2 may be disposed adjacent to the other end of the pin PIN (which is coupled to the pin hole PH defined in the second side wall PS2). The central portion CP may be disposed between the first guide portion GD1 and the second guide portion GD2.

[0148] In an embodiment, the width of the central portion CP in the second direction DR2 may be greater than the widths of the first and second guide portions GD1 and GD2 in the second direction DR2. In a cross-section taken along the first direction DR1, the width of the central portion CP in the first direction DR1 may be less than the widths of the first and second guide portions GD1 and GD2 in the first direction DR1.

[0149] According to an embodiment, when the roller RL (see Figure 2A ) is being wound, the first and second guide portions GD1 and GD2 may contact the rear surface of the plate PL overlapping the first portion PM1, but the central portion CP may not contact the rear surface of the plate PL overlapping the first portion PM1.

[0150] According to an embodiment, the first guide portion GD1, the second guide portion GD2, and the central portion CP may each have a cylindrical shape. In addition, the pin PIN may also have a cylindrical shape.

[0151] In an embodiment, the roller RL (see Figure 2A ) in the raised PT (see Figure 2A ) may be disposed between the central portions CP so as to extend along the roller RL (see Figure 2A ) are arranged adjacent to each other on the circumference. Figure 2A ) can be stably coupled to the central portion CP through the first guide portion GD1 and the second guide portion GD2.

[0152] In an embodiment, and with reference to Figure 7B , one end PU of the pin PIN may be coupled to the pin hole PH defined in the first side wall PS1 , and the other end PB of the pin PIN opposite to the one end PU in the second direction DR2 may be coupled to the pin hole PH defined in the second side wall PS2 . Figure 7B The pin PIN is shown to pass through the coupling portion CM from the outside of the second side wall PS2 and be inserted into the pin hole PH of the first side wall PS1, but the present disclosure is not limited thereto. In an embodiment, the pin PIN and the coupling portion CM may be provided in an integral shape and are not limited to any one embodiment.

[0153] Fig. 8A is a perspective view showing a configuration of a display device according to an embodiment. Figure 8B is a perspective view of a configuration of a display device according to an embodiment. Fig. 9 is a perspective view showing a chain unit according to an embodiment. FIG. 8A to FIG. 9 The embodiments of the chain unit described can be applied to the Figure 7B The display device DD described (see Figure 1A ).

[0154] refer to Fig. 8A , the chain unit CU- 1 according to the embodiment may include a pin PIN- 1 and a coupling portion CM- 1 .

[0155] In an embodiment, the coupling portion CM-1 may include a first guide portion GD1, a second guide portion GD2, and a central portion CP. The first guide portion GD1 may be disposed adjacent to one end portion PU of the pin PIN-1 and coupled to the first side wall PS1 (see Fig. 7A ) in the pin hole PH (see Fig. 7A ), and the second guide portion GD2 may be disposed adjacent to the other end PB of the pin PIN-1 and coupled to the pin hole PH defined in the second side wall PS2. The central portion CP may be disposed between the first guide portion GD1 and the second guide portion GD2.

[0156] In an embodiment, the width of the central portion CP in the second direction DR2 may be greater than the widths of the first and second guide portions GD1 and GD2 in the second direction DR2. In a cross-section taken along the first direction DR1, the width of the central portion CP in the first direction DR1 may be less than the widths of the first and second guide portions GD1 and GD2 in the first direction DR1.

[0157] According to an embodiment, the pin PIN-1 may have a square column shape. Therefore, the pin hole PH defined in the second side wall PS2 may have a shape corresponding to the shape of the pin PIN-1. In addition, the shape of the chain groove CH defined in the coupling portion CM-1 may also have a shape corresponding to the shape of the pin PIN-1, but the present disclosure is not limited thereto. The coupling portion CM-1 may have a cylindrical shape, and the shape of the chain groove CH defined inside the coupling portion CM-1 may also have a shape corresponding to the shape of the pin PIN-1.

[0158] refer to Figure 8B , the chain unit CU-2 according to the embodiment may include a pin PIN-2 and a coupling portion CM-2.

[0159] In an embodiment, the coupling portion CM-2 may include a first guide portion GD1, a second guide portion GD2, and a central portion CP. The first guide portion GD1 may be disposed adjacent to one end portion PU of the pin PIN-2 and coupled to the first side wall PS1 (see Fig. 7A ) in the pin hole PH (see Fig. 7A ), and the second guide portion GD2 may be disposed adjacent to the other end PB of the pin PIN-2 and coupled to the pin hole PH defined in the second side wall PS2. The central portion CP may be disposed between the first guide portion GD1 and the second guide portion GD2.

[0160] According to an embodiment, the pin PIN-2 may have a triangular column shape. Therefore, the pin hole PH defined in the second side wall PS2 may have a shape corresponding to the shape of the pin PIN-2. In addition, the shape of the chain groove CH defined in the coupling portion CM-2 may also have a shape corresponding to the shape of the pin PIN-2, but the present disclosure is not limited thereto. The coupling portion CM-2 may have a cylindrical shape, and the shape of the chain groove CH defined therein may have a shape corresponding to the shape of the pin PIN-2.

[0161] In an embodiment, according to Fig. 8A and Figure 8B The pins PIN-1 and PIN-2 described in the figure have a polygonal shape in cross section and can therefore be stably coupled to the side walls PS1 and PS2 (see Fig. 7A ).

[0162] In an embodiment, reference Fig. 9 , the chain unit CU-3 may include a coupling portion CM-3 and a pin PIN-3. The coupling portion CM-3 may include a first guide portion GD1, a second guide portion GD2, a third guide portion GD3, a fourth guide portion GD4, and a fifth guide portion GD5 arranged in the first direction DR1, and include a first central portion CP1, a second central portion CP2, a third central portion CP3, and a fourth central portion CP4 arranged in the first direction DR1. The first guide portion GD1, the second guide portion GD2, the third guide portion GD3, the fourth guide portion GD4, and the fifth guide portion GD5 may be respectively disposed to be spaced apart from each other along the first direction DR1, and the first central portion CP1, the second central portion CP2, the third central portion CP3, and the fourth central portion CP4 may be respectively disposed between the first guide portion GD1, the second guide portion GD2, the third guide portion GD3, the fourth guide portion GD4, and the fifth guide portion GD5 so as to be spaced apart from each other along the first direction DR1. For ease of description, the guide portion and the central portion are Fig. 9 Although described as separate components, the guide portion and the central portion may be provided in an integral shape.

[0163] In an embodiment, the protrusion inserted into the chain unit CU-3 may have the same Fig. 12A The protrusions PT in the roller RL shown (see Fig. 12A ) of the same shape. Therefore, each of the protrusions can be inserted in a chain unit CU-3 different from each other, and can be moved along the roller RL (see Fig. 12A )'s circumference is inserted between the central portions adjacent to each other.

[0164] Fig. 10Ais an exploded perspective view of a display device according to an embodiment. Fig. 10B is a plan view illustrating a coupling relationship of a plate and a chain unit according to an embodiment. Fig.11A is a perspective view of a chain unit according to an embodiment. Fig. 11B is an exploded perspective view of a pin according to an embodiment.

[0165] In an embodiment, and with reference to Fig. 10A and Fig. 10B , an adhesive layer AL may be disposed between the display module DM and the panel PL. The display module DM and the panel PL may be coupled to each other through the adhesive layer AL.

[0166] In an embodiment, the panel PL may be disposed under the display module DM. The panel PL may include a first portion PM1, a second portion PM2, a first side wall PS1, and a second side wall PS2. According to an embodiment, the panel PL may include stainless steel.

[0167] In an embodiment, the first portion PM1 may overlap the first area AA1 of the display module DM. Therefore, when the shape of the first area AA1 of the display module DM corresponds to the roll RL (see Figure 2A ) is changed, the shape of the first portion PM1 may be changed together with the first area AA1 corresponding to the curved surface of the roller RL.

[0168] In an embodiment, the second portion PM2 may overlap the second area AA2. The second portion PM2 may be defined as a region that maintains a flat state with the second area AA2 in the first mode and the second mode. In the present disclosure, the first portion PM1 and the second portion PM2 of the plate PL may be defined as a "base portion".

[0169] In an embodiment, the panel PL may include a first sidewall PS1 and a second sidewall PS2 spaced apart from each other in the second direction DR2 with the first portion PM1 therebetween. The first sidewall PS1 and the second sidewall PS2 may protrude downward from the base portion.

[0170] According to an embodiment, a pin hole PH at least partially penetrating the first side wall PS1 and the second side wall PS2 in a direction from the inner side surface toward the outer side surface may be defined in each of the first side wall PS1 and the second side wall PS2, wherein the inner side surface and the outer side surface face each other in the second direction DR2. The pin hole PH may be formed in a portion of the first side wall PS1 and the second side wall PS2 that protrudes downward from the first portion PM1.

[0171] In an embodiment, the chain units CU-A may be disposed between the first side wall PS1 and the second side wall PS2 and disposed under the plate PL overlapping the first portion PM1. The chain units CU-A may be arranged along the first direction DR1 and may each extend along the second direction DR2.

[0172] In an embodiment, the chain units CU-A may each include a pin PIN-A and a coupling unit CM-A. A chain groove into which the pin PIN-A may be inserted may be defined in the coupling unit CM-A. The shape of the chain groove may correspond to the shape on a cross section taken along the first direction DR1.

[0173] In an embodiment, the coupling unit CM-A may include coupling portions CH1, CH2 ... CHm-1 and CHm, which are arranged to be spaced apart from each other along the second direction DR2. The coupling portions CH1, CH2 ... CHm-1 and CHm may be arranged to be spaced apart from each other along the second direction DR2 and coupled to the first side wall PS1 and the second side wall PS2 by one pin PIN-A.

[0174] In an embodiment, the pin PIN-A may include an insertion portion FM, a first fixing portion FX1, and a second fixing portion FX2. The insertion portion FM may be inserted into a chain groove defined in the coupling unit CM-A.

[0175] In an embodiment, Fig.11A The connection relationship between one connection part CH among the connection parts CH1, CH2 ... CHm-1 and CHm and the pin PIN-A is exemplarily shown. Fig.11A The described connection part CH may correspond to the reference Fig. 10A Any one of the described coupling portions CH1, CH2 ... CHm-1 and CHm.

[0176] In an embodiment, and with reference to Fig.11A , the coupling portion CH may include a first guide portion GD1, a second guide portion GD2, and a central portion CP. According to an embodiment, the first guide portion GD1 and the second guide portion GD2 may be spaced apart from each other, and the first guide portion GD1 and the second guide portion GD2 are included in the coupling portion CH to be positioned differently from each other and face each other in the second direction DR2, and thus the pin PIN-A may be exposed.

[0177] In an embodiment, a first width WD1 of the central portion CP in the second direction DR2 may be greater than a second width WD2 of each of the first and second guide portions GD1 and GD2 in the second direction DR2. In a cross-section taken along the first direction DR1, a width of the central portion CP in the first direction DR1 may be smaller than widths of the first and second guide portions GD1 and GD2 in the first direction DR1.

[0178] According to an embodiment, when the roller RL (see Figure 2A ) is curled, the first and second guide portions GD1 and GD2 may contact the rear surface of the plate PL overlapping the first portion PM1, but the central portion CP may not contact the rear surface of the plate PL overlapping the first portion PM1.

[0179] According to an embodiment, the first guide portion GD1, the second guide portion GD2 and the central portion CP may each have a cylindrical shape. In addition, the pin PIN-A may also have a cylindrical shape. Therefore, the chain groove CH defined in the coupling portion CH may be defined in a cylindrical shape.

[0180] In an embodiment, the protrusion inserted into the chain unit CU-A may have the same Fig. 12A The protrusions PT in the roller RL shown (see Fig. 12A ) of the same shape. Therefore, each of the protrusions can be inserted into the chain units CU-A positioned differently from each other, and can be moved along the roller RL (see Fig. 12A )'s circumference is inserted between the central portions adjacent to each other.

[0181] In an embodiment, and with reference to Fig. 10A and Fig. 11B , the pin PIN-A may include an insertion portion FM, a first fixing portion FX1, and a second fixing portion FX2. Fig. 11B It is shown that the first fixing portion FX1 and the insertion portion FM are fixed to the first side wall PS1, and the description related thereto may also be similarly applied to the second fixing portion FX2.

[0182] In an embodiment, the first fixing portion FX1 may be inserted in a direction from the outside of the first side wall PS1 toward the inside of the first side wall PS1. The first fixing portion FX1 may be fixed to the insertion portion FM inserted into the pin hole PH of the first side wall PS1 by a bolt-nut fastening mechanism, but the present disclosure is not limited thereto. In an embodiment, the first fixing portion FX1 may be connected to the groove MH defined in the insertion portion FM by press-fitting, and is not limited to any one embodiment.

[0183] According to an embodiment, since the insertion portion FM is coupled to the first and second side walls PS1 and PS2 through the first and second fixing portions FX1 and FX2, the coupling unit CM-A may be stably fixed to the board PL.

[0184] In an embodiment, reference Fig. 12A and Fig. 12B The roller RL may include a rotating portion RU having a cylindrical shape, and a protrusion PT protruding from the rotating portion RU. In an embodiment, the protrusion PT may be arranged separately from each other along the circumference of the rotating portion RU and along the second direction DR2 which is the extension direction. According to an embodiment, the cross-sectional shape of each of the protrusions PT may be a triangle.

[0185] In an embodiment, the protrusions PT may be respectively arranged in different chain units CU-A (see Fig. 10A ). For example, according to an embodiment, one protrusion PT may be inserted into a space defined between a first central portion CH-1 included in one coupling portion and a second central portion CH-2 included in another coupling portion (which is positioned adjacent to the one coupling portion). Therefore, the width of each of the protrusions PT in the second direction DR2 may be less than or equal to the width of the central portion in the second direction DR2. When the roller RL is curled with respect to the rotation axis RX, the protrusion PT may not affect the plate PL (see Fig. 10A ) and display module DM.

[0186] According to the embodiment, when the roller RL rotates, the portion to which the rotational force of the roller RL is directly applied is the chain unit CU-A (see Fig. 10A ) and PIN-A (see Fig. 10A ), and the rotational force of the roller RL is not applied to the first and second portions PM1 and PM2 of the panel PL facing the display module DM.

[0187] In an embodiment, since the factors that the roller RL and the plate PL disposed under the display module DM affect the display surface of the display module DM are eliminated, a display device DD having improved surface quality and appearance can be provided despite repeated sliding operations of the display device DD. In addition, a typical multi-rod structure disposed under the plate is omitted, and thus a display device DD in which a structure included in a sliding portion is simplified can be provided.

[0188] Fig.13 is a cross-sectional view showing an arrangement relationship between a roller and a plate according to an embodiment. Fig.14 is a perspective view showing an arrangement relationship between a roller and a plate according to an embodiment. Fig.13 Shown with Fig. 12B corresponding area, and Fig.14 Shown with Fig. 12A The corresponding area.

[0189] In an embodiment, and with reference to Fig.13 , the roller RL-1 may include a rotating portion RU having a cylindrical shape and a protrusion PT-1 protruding from the rotating portion RU. The protrusions PT-1 may be arranged to be separated from each other along the circumference of the rotating portion RU and along the second direction DR2 which is the extension direction. According to an embodiment, the cross-sectional shape of each of the protrusions PT-1 may be a trapezoid, but the present disclosure is not limited thereto. According to an embodiment, the cross-sectional shape of each of the protrusions PT-1 may be any one of a quadrilateral, a rectangle, and a semicircle.

[0190] In an embodiment, the protrusions PT-1 may be respectively arranged in different chain units CU (see Fig. 7A According to an embodiment, one protrusion PT-1 may be inserted into a space defined between a first central portion CH-1 included in one coupling portion CM and a second central portion CH-2 included in another coupling portion CM disposed adjacent to the one coupling portion CM.

[0191] In an embodiment, and with reference to Fig.14 , the roller RL-2 may include a rotating portion RU having a cylindrical shape and a protrusion PT-2 protruding from the rotating portion RU. The protrusions PT-2 may be arranged to be separated from each other along the circumference of the rotating portion RU. In an embodiment, the protrusions PT-2 may each extend along the second direction DR2. According to an embodiment, the cross-sectional shape of each of the protrusions PT-2 may be a trapezoid.

[0192] According to the embodiment, since the factors that the roller and the plate affect the display surface of the display module are eliminated, a display device having improved surface quality and appearance can be provided. In addition, a display device in which the structure included in the sliding part is simplified can be provided.

[0193] Although the embodiments of the present disclosure are described for illustrative purposes, it will be appreciated by those skilled in the art that various modifications and substitutions are possible without departing from the scope and spirit of the present disclosure. Therefore, the scope of the present disclosure is not limited to the detailed description of this specification, the drawings and / or the appended claims. In addition, the embodiments or parts of the embodiments may be combined in whole or in part without departing from the scope of the present disclosure.

Claims

1. A display device, characterized in that include: Display module; a plate including a base portion and a first side wall and a second side wall protruding downward from the base portion to face each other, and disposed below the display module; chain units disposed between the first side wall and the second side wall to be spaced apart from each other along a first direction, and each of the chain units extending along a second direction crossing the first direction to be coupled to the first side wall and the second side wall; as well as a roller including projections disposed adjacent to each other between the chain units and overlapping the base portion, Wherein, the display module overlapping the base portion, the base portion, the first side wall, and the second side wall are bent relative to the roller.

2. The display device according to claim 1, characterized in that The chain units each include a coupling portion extending in the second direction and defining a chain groove therein, and a pin into which the pin is inserted, and one end and the other end of the pin are opposite to each other in the second direction and protrude from the coupling portion.

3. The display device according to claim 2, characterized in that: The first side wall and the second side wall respectively include pin holes penetrating at least a portion of the first side wall and the second side wall, and the one end portion and the other end portion of each of the pins are inserted into the pin holes.

4. The display device according to claim 3, characterized in that: The pin further includes a first fixing portion fixing the one end portion and the first side wall, and a second fixing portion fixing the other end portion and the second side wall.

5. The display device according to claim 3, characterized in that: The pin has a circular shape or a polygonal shape in cross section, and wherein the pin hole and the chain groove have shapes corresponding to the shape of the pin.

6. The display device according to claim 2, characterized in that: The coupling portion includes a first guide portion disposed adjacent to the one end portion, a second guide portion disposed adjacent to the other end portion, and a central portion disposed between the first guide portion and the second guide portion, wherein A width of the central portion in the second direction is greater than a width of the first guide portion in the second direction and a width of the second guide portion in the second direction.

7. The display device according to claim 6, characterized in that: The projections are respectively inserted between adjacent ones of the central portions along the circumference of the roller.

8. The display device according to claim 6, characterized in that: The first guide portion and the second guide portion are in contact with a rear surface of the base portion, and wherein the central portion is not in contact with the rear surface.

9. The display device according to claim 2, characterized in that: The coupling portion includes guide portions spaced apart from each other in the second direction, and a central portion disposed between adjacent guide portions in the second direction, wherein the protrusions are arranged to be separated from each other along the second direction and along the circumference of the roller, and The projections are respectively inserted between adjacent ones of the central portions along the circumference of the roller.

10. The display device according to claim 2, characterized in that: When the roller rotates, the coupling portion provided between the protrusions and the pin inserted in the coupling portion rotate.

11. The display device according to claim 1, characterized in that: The chain units each include a coupling portion and a pin, each of the coupling portions includes a first guide portion, a second guide portion, and a central portion disposed between the first guide portion and the second guide portion, and a chain groove is defined in the coupling portion, the pin is inserted into the chain groove, wherein, The coupling portions are spaced apart from each other along the second direction, and the pin is exposed between the coupling portions adjacent to each other along the second direction.

12. The display device according to claim 11, characterized in that: A width of each of the protrusions in the second direction is equal to or smaller than a width of the central portion in the second direction.

13. The display device according to claim 1, characterized in that: When the roller rotates, a portion of the base portion bent by the roller, the display module overlapped with the base portion, the first side wall, and the second side wall are variable.

14. The display device according to claim 1, characterized in that The protrusion has a triangular shape or a trapezoidal shape in cross section.

15. The display device according to claim 1, characterized in that: The base portion, the first side wall, and the second side wall are integral with each other.

16. The display device according to claim 1, characterized in that: The display module comprises: An electronic panel including a display panel configured to provide an image, an input sensing portion configured to sense an external input, and an anti-reflection layer disposed on the input sensing portion; An impact absorbing layer is disposed on the electronic panel; a window disposed on the impact absorbing layer; and The panel protection layer is arranged below the electronic panel.

17. The display device according to claim 16, characterized in that: When the roller rotates to change from the first mode to the second mode, the area of ​​the display module increases, and The number of chain units disposed adjacent to the window in the second mode is greater than the number of chain units disposed adjacent to the window in the first mode.

18. The display device according to claim 1, characterized in that: The display device further includes a flexible circuit board connected to one end of the display module and a driving chip connected to the flexible circuit board. wherein a portion of the display module adjacent to the one end connected to the flexible circuit board is bent to face the rear surface of the board.

19. The display device according to claim 1, characterized in that: The display device further includes an adhesive layer disposed between the display module and the board, Wherein, the adhesive layer comprises a pressure-sensitive adhesive or an optically transparent adhesive.

20. The display device according to claim 1, characterized in that The plate comprises stainless steel.

Images