Display device

Abstract

The display device includes a display module, a roller shaft connected to a first end of the display module, a flexible circuit board connected to a second end of the display module, a printed circuit board facing a rear surface of the display module and connected to the flexible circuit board, a first holder disposed between the printed circuit board and the display module, a second holder configured to accommodate the printed circuit board and the flexible circuit board, and a connection portion protruding from the first holder toward the printed circuit board and connected to the printed circuit board.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2021-0039975, filed on March 26, 2021, which is incorporated herein by reference for all purposes as if fully set forth herein. Technical Field

[0003] Embodiments of this disclosure generally relate to display devices. Background Technology

[0004] Electronic devices that provide images to users, such as smartphones, digital cameras, laptops, navigation systems, and smart TVs, include display devices for displaying images. Display devices generate images and provide the generated images to the user via a screen.

[0005] With recent advancements in display technology, various types of display devices have been developed. For example, flexible display devices capable of transforming, folding, or rolling into curved shapes are under development. Flexible display devices are easy to carry, improving user convenience.

[0006] Flexible display panels used in flexible display devices can also be transformed into various shapes. For example, the display panel can be connected to a roller and wound around or unwound from the roller. When the display panel is wound and unwound, a structure is needed to accommodate the drive unit connected to the display panel.

[0007] The information disclosed in this background section is only for understanding the background technology of this disclosure concept, and therefore may contain information that does not constitute prior art. Summary of the Invention

[0008] The device constructed according to an embodiment of the present invention relates to a flexible display device and a driving unit for accommodating a display module of the flexible display device.

[0009] This disclosure provides a display device including a holder capable of accommodating a flexible circuit board and a printed circuit board connected to a display module.

[0010] Further features of the inventive concept will be set forth in the following description and will be apparent in part from the description, or may be learned by practice of the inventive concept.

[0011] The embodiment provides a display device, which may include: a display module; a roller connected to one end of the display module; a flexible circuit board connected to the other end of the display module; a printed circuit board facing the rear surface of the display module and connected to the flexible circuit board; a first retainer disposed between the printed circuit board and the display module; a second retainer configured to receive the printed circuit board and the flexible circuit board; and a connecting portion protruding from the first retainer toward the printed circuit board and connected to the printed circuit board.

[0012] In one embodiment, the device may include: a display module; a roller connected to a first end of the display module; a flexible circuit board connected to a second end of the display module; a printed circuit board facing the rear surface of the display module and connected to the flexible circuit board; a first retainer disposed between the printed circuit board and the display module and defining a recessed portion therein in which the printed circuit board is disposed; and a second retainer configured to receive the first retainer, the printed circuit board, and the flexible circuit board, wherein the printed circuit board may be spaced apart from the first surface of the first retainer defining the recessed portion.

[0013] It should be understood that the foregoing general description and the following detailed description are both illustrative and explanatory, and are intended to provide further explanation of the claimed invention. Attached Figure Description

[0014] The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the inventive concept.

[0015] Figure 1 This is a perspective view of a display device constructed according to an embodiment based on the principles of the present invention.

[0016] Figure 2 It shows that it is contained in Figure 1 The display module is shown in the housing.

[0017] Figure 3 It shows Figure 2 The display module shown is in a curled-up state.

[0018] Figure 4 Exposure to Figure 1 The external display module of the housing shown.

[0019] Figure 5 The setting is shown Figure 4 The lifting part on the rear surface of the display module.

[0020] Figure 6 As an example, it is shown Figure 2 The cross-section of the display module shown is shown.

[0021] Figure 7 As an example, it is shown Figure 6 The cross-section of the display panel shown is shown.

[0022] Figure 8 yes Figure 6 The plan view of the display panel is shown.

[0023] Figure 9 It shows Figure 4 The interior of the display device's housing is shown.

[0024] Figure 10 yes Figure 9 Enlarged view of the drive unit, rollers, first guide rollers, second guide rollers, and speaker shown on the upper right.

[0025] Figure 11 yes Figure 10 The side view shows the drive unit, rollers, first guide rollers, second guide rollers, and speaker.

[0026] Figure 12 It shows Figure 5 The interior of the display device's housing is shown.

[0027] Figure 13 yes Figure 12 An enlarged view of one side of the grip shown.

[0028] Figure 14 It is along Figure 12 The sectional view shown is taken by line I-I'.

[0029] Figure 15 yes Figure 14 A three-dimensional view of the cross-section shown.

[0030] Figure 16 It shows that it is in the state of being from Figure 12 The display device with the cover removed.

[0031] Figure 17 yes Figure 16 An enlarged view of the portion of the second retainer shown, wherein the first arm is disposed at one end.

[0032] Figure 18 It shows that it is in the state of being from Figure 16 The display device with the first arm, the second arm, and the second retainer removed.

[0033] Figure 19 It is the first retainer that is set on it. Figure 18 Enlarged view of any portion of the printed circuit board shown.

[0034] Figure 20 yes Figure 19 An enlarged view of the connecting part shown, specifically the connecting part located on the left side.

[0035] Figure 21 It shows that it is in the state of being from Figure 20 The connection part has been removed from the state where the fastening unit is removed.

[0036] Figure 22 It shows that it is in the state of being from Figure 21 The connection parts in the state of printed circuit boards and flexible circuit boards have been removed.

[0037] Figure 23 The configuration of the first retainer according to another embodiment is shown.

[0038] Figure 24 It shows Figure 23 The side surface of the first retainer shown.

[0039] Figure 25 It shows the connection to Figure 24 The first retainer shown is the display module.

[0040] Figure 26 Is it like this? Figure 25 The first retainer and the display module are shown connected to each other in a side view.

[0041] Figure 27 The arrangement of a support plate connected to a first retainer according to another embodiment is shown.

[0042] Figure 28 It shows the connection to Figure 27 The first retainer and display module of the support plate shown.

[0043] Figure 29 Is it like this? Figure 28 The side view shows the support plate, the first retainer, and the display module connected to each other.

[0044] Figure 30 The configuration of the first retainer according to another embodiment is shown. Detailed Implementation

[0045] In the following description, numerous specific details are set forth for purposes of explanation in order to provide a thorough understanding of various embodiments or implementations of the invention. As used herein, “implementation” and “method” are interchangeable terms and are non-limiting examples of apparatuses or methods employing one or more of the inventive concepts disclosed herein. However, it will be apparent that various embodiments may be practiced without these specific details or with one or more equivalent arrangements. In other instances, well-known structures and apparatuses are shown in block diagram form to avoid unnecessarily obscuring the various embodiments. Furthermore, the various embodiments may be different, but are not necessarily exclusive. For example, a particular shape, configuration, and characteristic of an embodiment may be used or implemented in another embodiment without departing from the inventive concept.

[0046] Unless otherwise stated, the embodiments shown should be understood as exemplary features providing details of variations in how the inventive concept can be implemented in practice. Therefore, unless otherwise stated, features, components, modules, layers, films, panels, regions, and / or aspects (hereinafter individually or collectively referred to as “elements”) of various embodiments may be combined, separated, interchanged, and / or rearranged in other ways without departing from the inventive concept.

[0047] Crosshairs and / or shading are typically used in the accompanying drawings to clarify the boundaries between adjacent elements. Therefore, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for particular materials, material properties, dimensions, scale, commonalities between illustrated elements, and / or any other characteristics, properties, etc., of the elements, unless otherwise stated. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of elements may be exaggerated for clarity and / or descriptive purposes. When embodiments can be implemented differently, a particular sequence of processes may be performed differently than the sequence described. For example, two consecutively described processes may be performed substantially simultaneously, or in the reverse order of their description. Similarly, the same reference numerals denote the same elements.

[0048] When an element (such as a layer) is referred to as being "on," "connected to," or "attached to" another element or layer, it may be directly on, connected to, or attached to that other element or layer, or there may be an intervening element or layer. However, when an element or layer is referred to as being "directly on," "directly connected to," or "directly attached to" another element or layer, there is no intervening element or layer. Therefore, the term "connection" can refer to a physical connection, electrical connection, and / or fluid connection, with or without an intervening element. Furthermore, the DR1, DR2, and DR3 axes are not limited to the three axes of a rectangular coordinate system (such as the x-axis, y-axis, and z-axis) and can be interpreted in a broader sense. For example, the DR1, DR2, and DR3 axes may be perpendicular to each other, or they may represent different directions that are not perpendicular to each other. For the purposes of this disclosure, “at least one of X, Y, and Z” and “at least one selected from the group consisting of X, Y, and Z” can be interpreted as X only, Y only, Z only, or any combination of two or more of X, Y, and Z (such as XYZ, XYY, YZ, and ZZ). As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0049] Although the terms “first,” “second,” etc., may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Therefore, without departing from the teachings of this disclosure, the first element discussed below may be referred to as the second element.

[0050] For descriptive purposes, spatial relative terms such as “below,” “under,” “below,” “lower,” “above,” “upper,” “above,” “higher,” and “side” (e.g., as in “sidewall”) may be used herein to describe the relationship of one element(s) to another element(s) shown in the accompanying drawings. In addition to the orientations described in the drawings, spatial relative terms are intended to include different orientations of the device in use, operation, and / or manufacture. For example, if the device in the drawings is flipped, an element described as “below” or “below” other elements or features will consequently be oriented “above” other elements or features. Thus, the exemplary term “below” can include both above and below orientations. Furthermore, the device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and where so, the spatial relative descriptive terms used herein should be interpreted accordingly.

[0051] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when used in this specification, the terms “comprises,” “comprising,” “includes,” and / or “including” specify the presence of stated features, integrals, steps, operations, elements, components, and / or groups thereof, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than terms of degree, and therefore, to explain the inherent deviations in the measurements, calculations, and / or provided values ​​that will be recognized by those skilled in the art.

[0052] Various embodiments are described herein with reference to cross-sectional and / or exploded views as schematic illustrations of idealized implementations and / or intermediate structures. Thus, variations in the shapes of the illustrations due to, for example, manufacturing techniques and / or tolerances are to be expected. Therefore, the embodiments disclosed herein should not be construed as limited to the specific shapes shown for a particular region, but rather include deviations in shape due to, for example, manufacturing processes. In this way, the regions shown in the figures may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the regions of the device, and are therefore not necessarily intended to be limiting.

[0053] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms such as those defined in common dictionaries shall be interpreted as having the meaning consistent with their meaning in the context of the relevant field and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0054] In the following description, embodiments will be described with reference to the accompanying drawings.

[0055] Figure 1 This is a perspective view of a display device constructed according to an embodiment based on the principles of the present invention. Figure 2 It shows that it is contained in Figure 1 The display module is shown in the housing. Figure 3 It shows Figure 1 The display module shown is in a curled-up state.

[0056] refer to Figure 1 and Figure 2 The display device DD may include a housing HS, a gripping component HND, and a display module DM.

[0057] The housing HS may have an opening OP that opens toward a first direction DR1, the opening OP being defined within the housing HS. The housing HS may extend longer in a second direction DR2 that intersects the first direction DR1 than it extends in the first direction DR1. Hereinafter, the direction intersecting the plane defined by the first direction DR1 and the second direction DR2 is defined as the third direction DR3.

[0058] The gripper HND can be positioned within the opening OP. The gripper HND can move away from or towards the housing HS in the first direction DR1.

[0059] The housing HS may include a bottom portion BP, a top portion UP, and a sidewall portion SP. The top portion UP may have an opening OP defined therein. The bottom portion BP and the top portion UP may have planes defined by a second direction DR2 and a third direction DR3. The bottom portion BP and the top portion UP may face each other in a first direction DR1. The sidewall portion SP may extend from the edge of the bottom portion BP to the edge of the top portion UP.

[0060] The display module DM can be housed within a housing HS. The display module DM can have a plane defined by a first direction DR1 and a second direction DR2. The display module DM can have a rectangular shape having a short side extending in the first direction DR1 and a long side extending in the second direction DR2. However, the embodiments described herein are not limited thereto, and the display module DM can have various shapes, such as circular or polygonal.

[0061] The upper surface of the display module DM can be defined as the display surface DS, and can have a plane defined by a first direction DR1 and a second direction DR2. The image generated by the display module DM can be provided to the user through the display surface DS.

[0062] The display surface DS may include a display area DA and a non-display area NDA surrounding the display area DA. The display area DA may display an image, and the non-display area NDA may not display an image. The non-display area NDA surrounds the display area DA and may define the boundary of the display module DM printed in a predetermined color (e.g., black).

[0063] Function buttons can be provided on the housing HS. These function buttons can provide various functions to the display device DD. For example, the display module DM can be moved to the outside or inside of the housing HS by operating the function buttons. Furthermore, the brightness and sharpness of the image displayed on the display module DM can be controlled by operating the function buttons.

[0064] refer to Figure 3The display module DM can be a flexible display module. The display module DM can be rolled up like a scroll. The display module DM can be rolled up in the first direction DR1. The display module DM can be rolled up from one side. The display module DM can be rolled up so that the display surface DS faces inward.

[0065] Figure 4 Exposure to Figure 1 The external display module of the housing shown.

[0066] refer to Figure 4 Based on the first direction DR1, the upper end of the display module DM can be connected to the gripper HND. By moving the gripper HND away from the housing HS in the first direction DR1, the display module DM can be pulled out of the housing HS through the opening OP.

[0067] The display module DM can extend to the outside of the housing HS via the gripper HND, so as to be exposed to the outside of the housing HS. The front surface FS of the display module DM can be exposed to the outside of the housing HS. The front surface FS can be the display surface DS described above. The surface opposite to the front surface FS of the display module DM can be defined as the rear surface BS of the display module DM. The front surface FS and the rear surface BS of the display module DM can be surfaces of the display module DM that are opposite each other on a third-direction DR3.

[0068] like Figure 1 As shown, when the gripper HND moves in the first direction DR1 to move closer to the housing HS, the display module DM can be inserted into the housing HS through the opening OP. Therefore, the display module DM can be disposed inside the housing HS and is not exposed to the outside.

[0069] Figure 5 The setting is shown Figure 4 The lifting part on the rear surface of the display module.

[0070] refer to Figure 5 The display device DD may include a lifting unit ELP. The lifting unit ELP can be used to extend the display module DM to the outside of the housing HS or to reduce the size of the display module DM so that it can be inserted into the housing HS.

[0071] The lifting unit ELP can be disposed on the rear surface BS of the display module DM. The lifting unit ELP can be housed in the housing HS and connected to the grip member HND. The lifting unit ELP can expand or contract on the rear surface BS of the display module DM in a first direction DR1. The lifting unit ELP can move in the first direction DR1, so that the grip member HND can move in the first direction DR1.

[0072] The lifting unit ELP can extend outside the housing HS, allowing the gripper HND to pull the display module DM outside the housing HS. The lifting unit ELP can also retract and insert into the housing HS, allowing the gripper HND to guide the display module DM into the housing HS.

[0073] The lifting unit ELP may include a first arm ARM1 and a second arm ARM2 disposed on the rear surface BS of the display module DM. The first arm ARM1 and the second arm ARM2 may be arranged to be spaced apart from each other in a second direction DR2.

[0074] One end of the first arm ARM1 and one end of the second arm ARM2 can be connected to the gripper HND. One end of the first arm ARM1 and one end of the second arm ARM2 can be arranged to be adjacent to the two sides of the gripper HND that are opposite to each other in the second direction DR2.

[0075] The other end of the first arm ARM1 and the other end of the second arm ARM2 can be disposed in the housing HS. The first arm ARM1 and the second arm ARM2 can have a foldable bellows structure and expand or contract in the first direction DR1.

[0076] When the first arm ARM1 and the second arm ARM2 retract in the first direction DR1, the gripper HND can move in the first direction DR1 to approach the housing HS. Furthermore, the first arm ARM1 and the second arm ARM2 can be disposed inside the housing HS.

[0077] When the first arm ARM1 and the second arm ARM2 extend in the first direction DR1, the gripper HND can move away from the housing HS in the first direction DR1. Furthermore, the first arm ARM1 and the second arm ARM2 can be disposed outside the housing HS.

[0078] The first arm ARM1 may include a plurality of first connector units JU1 connected to each other for rotation. The first connector units JU1 may be connected in a bellows manner and unfolded or folded in a first direction DR1. As an example, two first connector units JU1 are shown, but the number of first connector units JU1 is not limited to this and may be more than two.

[0079] The second arm ARM2 may include a plurality of second connector units JU2 that are connected to each other for rotation. The second connector units JU2 may be connected in a bellows manner and unfold or fold in the first direction DR1. For example, two second connector units JU2 are shown, but the number of second connector units JU2 is not limited to this and may be more than two.

[0080] Figure 6 As an example, it is shown Figure 2 The cross-section of the display module shown is shown.

[0081] For example, Figure 6 A cross-section of the display module DM as viewed from the first direction DR1 is shown.

[0082] refer to Figure 6 The display module DM may include a display panel DP, an input sensing unit ISP, an anti-reflective layer RPL, a window WIN, and a panel protective film PF.

[0083] The display panel DP can be a flexible display panel. The display panel DP according to the embodiments can be a light-emitting display panel, but is not particularly limited thereto. For example, the display panel DP can be an organic light-emitting display panel or an inorganic light-emitting display panel. The light-emitting layer of an organic light-emitting display panel can contain organic light-emitting materials. The light-emitting layer of an inorganic light-emitting display panel can contain quantum dots, quantum rods, etc. Hereinafter, the display panel DP will be described as an organic light-emitting display panel.

[0084] The input sensing unit (ISP) can be disposed on the display panel (DP). The ISP may include multiple sensors for sensing external inputs capacitively. When manufacturing the display module (DM), the ISP can be directly fabricated on the display panel (DP). However, the embodiments described herein are not limited to this, and the ISP can be fabricated as a panel independent of the display panel (DP) and then attached to the display panel (DP) via an adhesive layer.

[0085] An anti-reflective layer (RPL) can be disposed on the input sensing unit (ISP). The RPL can be formed directly on the ISP or attached to it via an adhesive layer. The RPL can be defined as an external light anti-reflective film. The RPL reduces the reflectivity of external light incident from above the display device (DD) towards the display panel (DP).

[0086] When external light traveling toward the display panel DP is reflected off the display panel DP like a mirror and then presented to an external user, the user may visually perceive the external light. To prevent this phenomenon, as an example, the anti-reflective layer RPL may include multiple color filters that display the same colors as the pixels of the display panel DP.

[0087] Color filters can filter out external light to display the same color as the pixel. In this case, external light may not be visually perceptible to the user. However, it is not limited to this; the antireflective layer RPL may include a polarizing film for reducing the reflectivity of external light. The polarizing film may include a retarder and / or a polarizer.

[0088] The window (WIN) can be set on the anti-reflective layer RPL. The window (WIN) can be formed directly on the anti-reflective layer RPL, or bonded to it via an adhesive layer. The window (WIN) protects the display panel (DP), input sensing unit (ISP), and anti-reflective layer RPL from external scratches and impacts.

[0089] The panel protective film (PF) can be positioned below the display panel (DP). The PF can be formed directly below the DP or bonded to the DP via an adhesive layer. The PF protects the lower portion of the display panel (DP). The PF can contain a flexible plastic material such as polyethylene terephthalate (PET).

[0090] Figure 7 As an example, it is shown Figure 6 The cross-section of the display panel shown is shown.

[0091] For example, Figure 7 A cross-section of the display panel DP as viewed from the first direction DR1 is shown.

[0092] refer to Figure 7 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.

[0093] The substrate SUB may include a display area DA and a non-display area NDA surrounding the display area DA. The substrate SUB may contain a flexible plastic material such as polyimide (PI). The display element layer DP-OLED may be disposed in the display area DA.

[0094] The display area DA can contain multiple pixels. Each pixel can include a light-emitting element, which is connected to a transistor disposed in the circuit element layer DP-CL and disposed in the display element layer DP-OLED.

[0095] A thin-film encapsulation layer (TFE) can be disposed on the circuit element layer (DP-CL) to cover the display element layer (DP-OLED). The TFE can include an inorganic layer and an organic layer interposed between the inorganic layers. The inorganic layer protects the pixels from moisture / oxygen. The organic layer protects the pixels from foreign matter such as dust particles.

[0096] Figure 8 yes Figure 6 The plan view of the display panel is shown.

[0097] refer to Figure 8The display device DD may include a display panel DP, a scan driver SDV, multiple data drivers DDV, multiple flexible circuit boards FPCB, multiple printed circuit boards PCB, and a light-emitting driver EDV.

[0098] The display panel DP may include a display area DA and a non-display area NDA surrounding the display area DA. The display panel DP may have a rectangular shape having a long side extending in the second direction DR2 and a short side extending in the first direction DR1, but the shape of the display panel DP is not limited to this.

[0099] The display panel DP may include multiple pixels PX, multiple scan lines SL1 to SLm, multiple data lines DL1 to DLn, and multiple light-emitting lines EL1 to ELm. m and n are natural numbers (i.e., positive integers greater than or equal to 1).

[0100] Pixels (PX) can be set in the display area (DA). Scan driver (SDV) and light-emitting driver (EDV) can be set in the non-display area (NDA) adjacent to the short side of the display panel (DP), respectively.

[0101] The data driver (DDV) can be positioned adjacent to the top of the display panel (DP), which is defined as one of the long sides of the display panel (DP). The printed circuit board (PCB) can also be positioned adjacent to the top of the display panel (DP). A flexible circuit board (FPCB) can be connected to the top of both the display panel (DP) and the PCB. The data driver (DDV) can be manufactured as an integrated circuit chip and mounted separately on the FPCB.

[0102] Scan lines SL1 to SLm can extend in the second direction DR2 to connect to the pixel PX and the scan driver SDV. Light emission lines EL1 to ELm can extend in the second direction DR2 to connect to the pixel PX and the light emission driver EDV.

[0103] Data lines DL1 to DLn can extend in the first direction DR1 to connect to the pixel PX and the data driver DDV. As an example, two data lines DL1 and DLn connected to the data driver DDV are shown positioned on the far left and far right, but essentially multiple data lines can be connected to each of the data drivers DDV.

[0104] The display device DD may also include a timing controller for controlling the operation of the scan driver SDV, the data driver DDV, and the light-emitting driver EDV. The timing controller can be manufactured as an integrated circuit chip and mounted on a printed circuit board (PCB). The timing controller can be connected to the data driver DDV, the scan driver SDV, and the light-emitting driver EDV via the PCB and a flexible circuit board (FPCB).

[0105] The scan driver SDV can generate multiple scan signals, which can be applied to pixel PX through scan lines SL1 to SLm. The data driver DDV can generate multiple data voltages, which can be applied to pixel PX through data lines DL1 to DLn. The light emission driver EDV can generate multiple light emission signals, which can be applied to pixel PX through light emission lines EL1 to ELm.

[0106] A pixel (PX) can receive a data voltage in response to a scan signal. A pixel (PX) can display an image by emitting light with a brightness corresponding to the data voltage in response to a light emission signal. The emission time of a pixel (PX) can be controlled by the light emission signal.

[0107] Figure 9 It shows Figure 4 The interior of the display device's housing is shown. Figure 10 yes Figure 9 Enlarged view of the drive unit, rollers, first guide rollers, second guide rollers, and speaker shown on the upper right. Figure 11 yes Figure 10 The side view shows the drive unit, rollers, first guide rollers, second guide rollers, and speaker.

[0108] For example, Figure 9 The bottom portion BP of the housing HS is shown, while the top portion UP and the side wall portion SP of the housing HS are omitted.

[0109] refer to Figure 4 , Figure 9 , Figure 10 and Figure 11 The display device DD may include multiple drive units DRP, rollers ROL, a first guide roller GR1 and a second guide roller GR2, as well as multiple roller support units RSP, belt BLT and speaker SPK.

[0110] The drive unit DRP, roller ROL, first guide roller GR1 and second guide roller GR2, roller support RSP, belt BLT and speaker SPK can be installed in the housing HS. The drive unit DRP, roller ROL, first guide roller GR1 and second guide roller GR2, roller support RSP, belt BLT and speaker SPK can be installed on the bottom part BP.

[0111] The drive unit DRP may have a cylindrical shape extending in the second direction DR2. The drive units DRP may be spaced apart from each other in the second direction DR2, facing each other. The drive unit DRP may be defined as an electric motor. The drive unit DRP may rotate about a rotation axis parallel to the second direction DR2. The drive unit DRP may rotate clockwise or counterclockwise.

[0112] The roller ROL can have a cylindrical shape extending in the second direction DR2. The roller ROL can rotate about an axis of rotation parallel to the second direction DR2. The roller ROL can rotate clockwise or counterclockwise.

[0113] One end ED1 of the display module DM, located at one of the opposite ends on the first direction DR1, can be connected to the roller ROL. The other end ED2 of the display module DM, located at one of the opposite ends on the first direction DR1, can be connected to the gripper HND. The display module DM can be wound around the roller ROL or unwound from the roller ROL.

[0114] The drive unit DRP can be spaced apart from the roller ROL on the third-direction DR3, and set to be closer to the bottom part BP than the roller ROL. The drive unit DRP can be set to be further apart from the display module DM than the roller ROL.

[0115] The first guide roller GR1 and the second guide roller GR2 may have a cylindrical shape extending in the second direction DR2. The first guide roller GR1 and the second guide roller GR2 may be positioned above the roller ROL based on the first direction DR1. The first guide roller GR1 and the second guide roller GR2 may rotate about a rotation axis parallel to the second direction DR2. The first guide roller GR1 and the second guide roller GR2 may rotate clockwise or counterclockwise.

[0116] The display module DM, which is rolled up by the roller ROL, can pass between the first guide roller GR1 and the second guide roller GR2 and extend in the first direction DR1. The first guide roller GR1 and the second guide roller GR2 can guide the movement of the display module DM.

[0117] The roller support portions RSPs can be spaced apart from each other in the second direction DR2 so that they face each other. The roller support portions RSPs can be disposed on the outer sides of the display module DM on opposite sides in the second direction DR2. Within the housing HS, the display module DM can be disposed between the roller support portions RSPs.

[0118] The drive unit DRP can be disposed between and connected to the roller support units RSP. One side of the drive unit DRP can pass through the roller support unit RSP and protrude from the roller support unit RSP. The outer side of the roller support unit RSP can be defined as the outer side of other surfaces of the roller support unit RSP opposite to the surfaces of the roller support unit RSP that face each other.

[0119] The roller ROL, the first guide roller GR1, and the second guide roller GR2 can be disposed between and connected to the roller support RSP. The two sides of the roller ROL that are opposite each other in the second direction DR2, and the two sides of the first guide roller GR1 and the second guide roller GR2 that are opposite each other in the second direction DR2, can pass through the roller support RSP and protrude to the outside of the roller support RSP.

[0120] The belt BLT can have a closed-loop shape and connect the drive unit DRP and the roller ROL. The belt BLT can also surround the drive unit DRP and the roller ROL in a closed-loop shape outside the roller support RSP. The belt BLT can be defined as a timing belt for transmitting power. The rotational force of the drive unit DRP can be transmitted to the roller ROL via the belt BLT.

[0121] When the drive unit DRP rotates clockwise (viewed in the second direction), the rotational force of the drive unit DRP is transmitted to the roller ROL through the belt BLT, allowing the roller ROL to rotate clockwise. The clockwise rotation of the roller ROL allows the display module DM to be wound around the roller ROL.

[0122] When the display module DM is wound around the roller shaft ROL, the first guide roller shaft GR1 rotates clockwise and the second guide roller shaft GR2 rotates counterclockwise, so that the display module DM can pass between the first guide roller shaft GR1 and the second guide roller shaft GR2.

[0123] When the drive unit DRP rotates counterclockwise (viewed in the second direction), the rotational force of the drive unit DRP is transmitted to the roller ROL through the belt BLT, allowing the roller ROL to rotate counterclockwise. Because the roller ROL rotates counterclockwise, the display module DM can be unwound from the roller ROL.

[0124] When the display module DM is unwound from the roller ROL, the first guide roller GR1 rotates counterclockwise and the second guide roller GR2 rotates clockwise, allowing the display module DM to pass between the first guide roller GR1 and the second guide roller GR2.

[0125] The speaker SPK can be installed between the drive units DRP. The speaker SPK can be an acoustic element that generates sound.

[0126] A first arm drive unit ADP1 can be provided on the rear surface BS of the display module DM, and this configuration will be described below. Figure 12 As described in the text.

[0127] Figure 12 It shows Figure 5 The interior of the display device's housing is shown.

[0128] refer to Figure 12 The display device DD may include a first arm drive unit ADP1 and a second arm drive unit ADP2. The first arm drive unit ADP1 and the second arm drive unit ADP2 may be disposed on the bottom portion BP in the housing HS.

[0129] The first arm drive unit ADP1 and the second arm drive unit ADP2 can be disposed behind the rear surface BS of the display module DM. In this specification, the phrase "behind the rear surface BS" can mean "below the rear surface BS" when the front surface FS of the display module DM faces upward based on the third direction DR3. The first arm drive unit ADP1 and the second arm drive unit ADP2 can be spaced apart from each other in the second direction DR2.

[0130] One end of the first arm ARM1 can be connected to the gripper HND, and the other end of the first arm ARM1 can be connected to the first arm drive unit ADP1. One end of the second arm ARM2 can be connected to the gripper HND, and the other end of the second arm ARM2 can be connected to the second arm drive unit ADP2.

[0131] The first arm ARM1 and the second arm ARM2 can expand or contract between the first arm drive unit ADP1 and the second arm drive unit ADP2 and the gripper HND. For example, the first arm drive unit ADP1 and the second arm drive unit ADP2 can drive the first arm ARM1 and the second arm ARM2, so that the first arm ARM1 and the second arm ARM2 can expand or contract in the first direction DR1.

[0132] The first arm drive unit ADP1, which is connected to the first connector unit JU1, can move the first connector unit JU1 clockwise or counterclockwise around the first arm drive unit ADP1, so that the first arm ARM1 can expand or contract in the first direction DR1.

[0133] The second arm drive unit ADP2, which is connected to the second connector unit JU2, moves the second connector unit JU2 counterclockwise or clockwise around the second arm drive unit ADP2, so that the second arm ARM2 can retract or expand in the first direction DR1.

[0134] When the display module DM is wound around the roller ROL, the first arm ARM1 and the second arm ARM2 can retract in the first direction DR1. When the display module DM is unwound from the roller ROL, the first arm ARM1 and the second arm ARM2 can extend in the first direction DR1.

[0135] Figure 13 yes Figure 12 An enlarged view of one side of the grip shown.

[0136] refer to Figure 13The gripper HND may include a first retainer HD1, a second retainer HD2, and a cover COP. The first retainer HD1 may be adjacent to the other end ED2 of the display module DM and disposed on the rear surface BS of the display module DM. The first retainer HD1 may contact the rear surface BS.

[0137] The other end ED2 of the display module DM and the first retainer HD1 can be connected to the second retainer HD2. For example, the second retainer HD2 may define a receiving groove AG facing downwards based on the first direction DR1. The receiving groove AG may extend in the second direction DR2. The other end ED2 of the display module DM and the first retainer HD1 can be inserted into the receiving groove AG and connected to the second retainer HD2.

[0138] The cover COP can be disposed on the rear surface BS of the display module DM. The cover COP can be disposed on one of the two opposing surfaces of the second retainer HD2 on the third-direction DR3. One surface of the second retainer HD2 on which the cover COP is disposed can be disposed on the rear surface BS of the display module DM.

[0139] One end of the first arm ARM1 can be inserted into and positioned in the space between the second retainer HD2 and the cover COP. This structure will be described in detail below. One end of the second arm ARM2 can also be positioned in the space between the second retainer HD2 and the cover COP.

[0140] Figure 14 It is along Figure 12 The sectional view shown is taken by line I-I'. Figure 15 yes Figure 14 A three-dimensional view of the cross-section shown.

[0141] refer to Figure 14 and Figure 15 The flexible circuit board FPCB can be connected to the other end ED2 of the display module DM. The printed circuit board PCB can be disposed on the rear surface BS of the display module DM. The printed circuit board PCB can be positioned facing the rear surface BS of the display module DM and connected to the flexible circuit board FPCB. The first retainer HD1 can be disposed between the printed circuit board PCB and the display module DM.

[0142] The holder HND may further include a connecting portion CNP disposed on one surface of the first retainer HD1. The connecting portion CNP may protrude from the first retainer HD1 toward the printed circuit board PCB. The printed circuit board PCB may be disposed on and connected to the connecting portion CNP.

[0143] The other end ED2 of the display module DM, the flexible circuit board FPCB, the printed circuit board PCB, the first retainer HD1, and the connector CNP can be accommodated in the second retainer HD2. For example, the other end ED2 of the display module DM, the flexible circuit board FPCB, the printed circuit board PCB, the first retainer HD1, and the connector CNP can be inserted into the receiving groove AG to be connected to the second retainer HD2.

[0144] Because the printed circuit board (PCB) is connected to the connection portion CNP protruding from the first retainer HD1, the PCB can be spaced apart from the first retainer HD1. Therefore, the PCB does not need to contact the first retainer HD1.

[0145] The first retainer HD1 may include a first surface SF1, a second surface SF2, and a third surface SF3. The first surface SF1 and the third surface SF3 may be surfaces opposite to each other on the third-direction DR3. The second surface SF2 and the third surface SF3 may also be surfaces opposite to each other on the third-direction DR3. That is, the third surface SF3 may be defined as the surface of the first retainer HD1 opposite to the first surface SF1 and the second surface SF2. The third surface SF3 may face the rear surface BS of the display module DM.

[0146] The printed circuit board (PCB) may face the first surface SF1 and be spaced apart from the first surface SF1. The connector CNP may protrude from the first surface SF1 toward the printed circuit board (PCB).

[0147] The second surface SF2 can be disposed around and above the first surface SF1. For example, based on the third direction DR3, the second surface SF2 can be further apart from the rear surface BS of the display module DM than the first surface SF1. That is, the first surface SF1 and the second surface SF2 can be formed in a stepped shape. According to this structure, when viewed from the second direction DR2, Figure 14 The cross-section of the first retainer HD1 can have an "L" shape.

[0148] The flexible circuit board FPCB connected to the other end ED2 of the display module DM can be bent and extended onto one side surface OS of the first retainer HD1. The side surface OS of the first retainer HD1 can be defined as the upper end of the first retainer HD1 based on the first direction DR1. The side surface OS of the first retainer HD1 can be adjacent to the other end ED2 of the display module DM.

[0149] The flexible circuit board FPCB extending onto one side surface OS of the first retainer HD1 can be bent and extended onto the first surface SF1 of the first retainer HD1. The flexible circuit board FPCB can extend onto the connector CNP and be disposed on the printed circuit board PCB. The flexible circuit board FPCB can be disposed on the printed circuit board PCB and connected to the printed circuit board PCB.

[0150] The inner surface of the defined receiving groove AG of the second retainer HD2 may include a first inner surface IS1, a second inner surface IS2, and a third inner surface IS3. The first inner surface IS1 may face the first surface SF1 and the second surface SF2. The second inner surface IS2 may face the first inner surface IS1. Furthermore, the second inner surface IS2 may face the third surface SF3. The first inner surface IS1 and the second inner surface IS2 may extend in a first direction DR1 and be spaced apart from each other in a third direction DR3.

[0151] The third inner surface IS3 may face a side surface OS of the first retainer HD1. The third inner surface IS3 may extend from the upper end of the first inner surface IS1 based on the first direction DR1 to the upper end of the second inner surface IS2 based on the first direction DR1. The third inner surface IS3 may extend on the third direction DR3.

[0152] The receiving space SPC for accommodating the printed circuit board (PCB) and the flexible circuit board (FPCB) can be defined between the first retainer HD1 and the second retainer HD2. For example, the portion of the flexible circuit board FPCB disposed on the first surface SF1 and the printed circuit board PCB can be disposed in the receiving space SPC between the first surface SF1 and the first inner surface IS1. The second surface SF2 can contact the portion of the first inner surface IS1 facing the second surface SF2.

[0153] The other end ED2 of the display module DM can be disposed between the second inner surface IS2 and the third surface SF3 of the first retainer HD1. Therefore, the other end ED2 of the display module DM can be disposed and fixed between the first retainer HD1 and the second retainer HD2.

[0154] The second retainer HD2 may include a first part PT1, a second part PT2, and a third part PT3. The first part PT1 may be positioned above the other end ED2 of the display module DM based on the first direction DR1.

[0155] The second portion PT2 may extend from the first portion PT1 in the first direction DR1 and has a first inner surface IS1. That is, the second portion PT2 may extend downward based on the first direction DR1.

[0156] The third portion PT3 may extend from the first portion PT1 in the first direction DR1 and may have a second inner surface IS2. That is, the third portion PT3 may extend downward based on the first direction DR1. The third portion PT3 may be spaced apart from the second portion PT2 in the third direction DR3.

[0157] Based on the first direction DR1, the length of the third part PT3 can be less than the length of the second part PT2. Since the front surface FS of the display module DM is the display surface DS for displaying images, the size of the third part PT3 can be adjusted so that the third part PT3 covering the display surface DS can be minimized.

[0158] Since the rear surface BS of the display module DM does not display images, the size of the second portion PT2 provided on the rear surface BS of the display module DM is not particularly limited. Therefore, in this embodiment, the third portion PT3 can be smaller than the second portion PT2.

[0159] One end of the first arm ARM1 can be connected to the second retainer HD2. For example, one end of the first arm ARM1 can be disposed in a recessed portion RES, which is defined on a surface of the second retainer HD2 disposed on the rear surface BS of the display module DM. A cover portion COP can be disposed on one surface of the second retainer HD2 to cover one end of the first arm ARM1. The cover portion COP can cover the recessed portion RES.

[0160] Since one end of the second arm ARM2 is located in the recessed portion RES, and the cover portion COP covers one end of the second arm ARM2, one end of the second arm ARM2 can also be connected to the second retainer HD2.

[0161] Figure 16 It shows that it is in the state of being from Figure 12 The display device with the cover removed. Figure 17 yes Figure 16 An enlarged view of the portion of the second retainer shown, wherein the first arm is disposed at one end.

[0162] refer to Figure 16 and Figure 17 The second retainer HD2 may extend in the second direction DR2. A recessed portion RES defined on one surface of the second retainer HD2 may extend in the second direction DR2. Based on the first direction DR1, the recessed portion RES may extend to the lower end of the second retainer HD2. That is, the recessed portion RES may be defined from the lower end of the second retainer HD2.

[0163] An arm connection portion ACP may be provided on one surface of the recessed portion RES defined above the second retainer HD2. The arm connection portion ACP may protrude from one surface of the second retainer HD2. When viewed from a third-party perspective DR3, the arm connection portion ACP may have a circular shape.

[0164] In the portion of the first arm ARM1 adjacent to one end of the first arm ARM1, a circular aperture H can be defined when viewed from the third direction DR3. The aperture H can penetrate a portion of the first arm ARM1 in the third direction DR3.

[0165] When the arm connector ACP is inserted into the hole H, one end of the first arm ARM1 can be connected to the second retainer HD2. When the circular arm connector ACP is inserted into the circular hole H, one end of the first arm ARM1 can be connected to the second retainer HD2, allowing the first arm ARM1 to rotate.

[0166] One end of the second arm ARM2 can also be inserted into the arm connection part ACP and connected to the second retainer HD2, so that the second arm ARM2 can rotate.

[0167] Figure 18 It shows the state from such Figure 16 The display device shown is a display device with the first arm, the second arm, and the second retainer removed. Figure 19 It is the first retainer that is set on it. Figure 18 Enlarged view of any portion of the printed circuit board shown.

[0168] As an example, Figure 19 It shows Figure 18 The printed circuit board (PCB) shown is located on the left side.

[0169] refer to Figure 18 and Figure 19 The first retainer HD1 may extend in the second direction DR2. The first surface SF1 may extend in the second direction DR2. Since the first surface SF1 is formed below the second surface SF2, the portion forming the first surface SF1 may be defined as a recessed portion RES1. The recessed portion RES1 may extend in the second direction DR2.

[0170] The first surface SF1 may extend to a side surface OS of the first retainer HD1. That is, the recessed portion RES1 may be formed from a side surface OS. The second surface SF2 may surround the first surface SF1 using other side surfaces that do not include a side surface OS.

[0171] A printed circuit board (PCB) can be disposed on the first surface SF1. The PCBs can extend in the second direction DR2 and be spaced apart from each other in the second direction DR2. One side of a flexible circuit board (FPCB) can be disposed on and connected to the PCB.

[0172] Multiple connecting portions CNPs may protrude from the first surface SF1. The connecting portions CNPs may be integrally formed with the first retainer HD1, but are not limited thereto; the connecting portions CNPs may be manufactured separately from the first retainer HD1 and connected to the first retainer HD1.

[0173] The connector CNP can be configured to be adjacent to the two opposite sides of each of the printed circuit boards (PCBs) in the second direction DR2. The connector CNP can be disposed below the two sides of the PCB, and the two sides of the PCB can be connected to the connector CNP.

[0174] As described above, since the printed circuit board (PCB) is mounted on the connector CNP, the PCB can be spaced apart from the first surface SF1 and may not contact it. When the PCB contacts the first surface SF1, the lower surface of the PCB facing the first surface SF1 may be damaged. However, in this embodiment, since the PCB does not contact the first surface SF1, the lower surface of the PCB may not be damaged.

[0175] A recess GV may be defined on one side surface OS of the first retainer HD1. A portion of this side surface OS may be recessed downward to define the recess GV. A flexible circuit board FPCB extending from the display module DM may be bent and disposed within the recess GV. The flexible circuit board FPCB may bend through the recess GV and extend to the first surface SF1. Because the flexible circuit board FPCB is disposed within the recess GV, the flexible circuit board FPCB may not protrude higher than the side surface OS on which the recess GV is not formed.

[0176] Figure 20 yes Figure 19 An enlarged view of the connecting part shown, specifically the connecting part located on the left side. Figure 21 It shows that it is in the state of being from Figure 20 The connection part has been removed from the state where the fastening unit is removed. Figure 22 It shows that it is in the state of being from Figure 21 The connection parts in the state of printed circuit boards and flexible circuit boards have been removed.

[0177] refer to Figure 20 , Figure 21 and Figure 22The sub-connector SCN can protrude from the connector CNP. When viewed from a third-party perspective towards DR3, the sub-connector SCN can protrude from the center of the connector CNP.

[0178] When viewed from a third party towards DR3, the connecting portion CNP may have a circular shape, but is not limited to this; the connecting portion CNP may have various shapes, such as elliptical or polygonal. When viewed from a third party towards DR3, the sub-connecting portion SCN may have a circular shape, but is not limited to this; the sub-connecting portion SCN may have various shapes, such as elliptical or polygonal. A connecting groove CNG may be defined within the sub-connecting portion SCN.

[0179] A printed circuit board (PCB) can be connected to a connector (CNP) via a fastening unit (CNU). For example, a connector hole (CNH) may be defined in a portion of the PCB adjacent to one side. A sub-connector (SCN) can be inserted into the connector hole (CNH). The fastening unit (CNU) is inserted into a connector recess (CNG) through the connector hole (CNH), allowing the PCB to be connected to the connector (CNP). As an example, the fastening unit (CNU) can be a screw.

[0180] According to the above structure, the printed circuit board (PCB) and the flexible circuit board (FPCB) can be connected to the first retainer HD1 and the second retainer HD2.

[0181] A printed circuit board (PCB) can be housed within a roller shaft (ROL), and a flexible printed circuit board (FPCB) can be connected to the PCB within the ROL and extend outside the ROL to connect to the display module (DM). In this configuration, the relatively thin FPCB may be damaged while winding around the ROL as the ROL rotates. Furthermore, the FPCB may separate from the PCB due to stress generated within the FPCB as it bends while winding around the ROL.

[0182] However, in this embodiment, the printed circuit board (PCB) and the flexible circuit board (FPCB) can be housed within the second retainer (HD2) of the gripper (HND) disposed on the upper end of the display module (DM). Therefore, damage to the flexible circuit board (FPCB) can be prevented, and separation of the flexible circuit board (FPCB) and the printed circuit board (PCB) from each other can be prevented. Furthermore, since the printed circuit board (PCB) and the flexible circuit board (FPCB) are not disposed within the roller (ROL), the size of the roller (ROL) can be reduced.

[0183] Figure 23 The configuration of the first retainer according to another embodiment is shown. Figure 24 It shows Figure 23 The side surface of the first retainer shown.

[0184] As an example, Figure 23 A portion of the first retainer HD1_1 is shown, and Figure 24 The side surface of the first retainer HD1_1 as viewed from the second direction DR2 is shown.

[0185] refer to Figure 23 and Figure 24 The first protruding portion PRT1 can protrude from the first retainer HD1_1 toward the display module DM. The first protruding portion PRT1 can also protrude from the third surface SF3 of the first retainer HD1_1. When viewed from the second direction DR2, the first protruding portion PRT1 can have an "L"-shaped annular structure.

[0186] The display module DM may define a first opening OP1 corresponding to the first protrusion PRT1. When viewed from a third party towards DR3, the first protrusion PRT1 may overlap with the first opening OP1.

[0187] Figure 25 It shows the connection to Figure 24 The first retainer shown is the display module. Figure 26 Is it like this? Figure 25 The first retainer and the display module are shown in a side view, which are connected to each other.

[0188] As an example, Figure 26 The second retainer HD2, the first retainer HD1_1, and the display module DM are shown.

[0189] refer to Figure 25 and Figure 26 The first protruding portion PRT1 can pass through the first opening OP1. The display module DM can be secured to the first retainer HD1_1 by being gripped by the annular protruding portion PRT1. The display module DM can be easily connected to the first retainer HD1_1 via the first protruding portion PRT1.

[0190] As an example, when viewed from a third party to DR3, the first protrusion PRT1 may have a rectangular shape, but is not limited thereto; the first protrusion PRT1 may have various shapes, such as polygons, circles, or ellipses.

[0191] The second retainer HD2 may cover the first protrusion PRT1. The third portion PT3 of the second retainer HD2 may cover the first protrusion PRT1. Therefore, the first protrusion PRT1 may not be visually identifiable from the outside due to the second retainer HD2.

[0192] Figure 27 The arrangement of a support plate connected to a first retainer according to another embodiment is shown. Figure 28 It shows the connection to Figure 27 The first retainer and display module of the support plate shown. Figure 29 Is it like this? Figure 28 The side view shows the support plate, the first retainer, and the display module that are connected to each other.

[0193] As an example, Figure 29 The second retainer HD2, support plate SPP, first retainer HD1_2, and display module DM are shown.

[0194] refer to Figure 27 , Figure 28 and Figure 29 The support plate SPP can be mounted on the front surface FS of the display module DM. The second protruding part PRT2 can protrude from the support plate SPP toward the display module DM.

[0195] The second protruding portion PRT2 can pass through the first opening OP1 defined in the display module DM and the second opening OP2 defined in the first retainer HD1_2. As an example, in Figure 29 The second protrusion PRT2 is shown in dashed lines. The second opening OP2 may be defined in the first surface SF1 of the first retainer HD1_2.

[0196] The display module DM and the first retainer HD1_2 can be easily connected to each other via the second protrusion PRT2. As an example, when viewed from a third party to DR3, the second protrusion PRT2 may have a rectangular shape, but is not limited thereto; the second protrusion PRT2 may have various shapes, such as polygons, circles, or ellipses.

[0197] The second retainer HD2 may cover the support plate SPP and the second protrusion PRT2. The third portion PT3' of the second retainer HD2 may cover the support plate SPP, and the second portion PT2 of the second retainer HD2 may cover the second protrusion PRT2. Therefore, the support plate SPP and the second protrusion PRT2 may not be visually identifiable from the outside due to the second retainer HD2.

[0198] Figure 30 The configuration of the first retainer according to another embodiment is shown.

[0199] As an example, Figure 30 Is with Figure 19 The corresponding 3D image.

[0200] refer to Figure 30A groove GV' may be defined in multiple portions of a side surface OS of the first retainer HD1_3. The grooves GV' may be configured to correspond to the flexible circuit board FPCB. The flexible circuit board FPCB may be disposed in the grooves GV'. Because the grooves GV' are formed to correspond to the flexible circuit board FPCB, the flexible circuit board FPCB can be more easily aligned and positioned.

[0201] According to one embodiment, the flexible circuit board and printed circuit board may not be disposed in the roller, but can be connected to the upper end of the display module and housed in a gripper disposed on the upper end of the display module. Since the flexible circuit board and printed circuit board are not disposed in the roller, the size of the roller can be reduced, and damage to the flexible circuit board and printed circuit board due to the rotation of the roller can be prevented.

[0202] Although some implementations and methods have been described herein, other implementations and modifications will be apparent from this description. Therefore, the inventive concept is not limited to such implementations, but rather to the broader scope of the appended claims and various obvious modifications and equivalent arrangements that will be apparent to those skilled in the art.

Claims

1. A display device, including: Display module; A roller shaft is connected to the first end of the display module; A flexible circuit board is connected to the second end of the display module opposite to the first end; A printed circuit board facing the rear surface of the display module and connected to the flexible circuit board; A first retainer is disposed between the printed circuit board and the display module; A second retainer is configured to accommodate the printed circuit board and the flexible circuit board; A connecting portion protrudes from the first retainer toward the printed circuit board and connects to the printed circuit board, and An arm, disposed on the rear surface of the display module and connected to the second retainer, One end of the arm is disposed in a recessed portion defined on one surface of the second retainer.

2. The display device according to claim 1, wherein, The printed circuit board is spaced apart from the first retainer.

3. The display device according to claim 1, wherein, The second retainer has a receiving groove, into which the second end of the display module, the flexible circuit board, the printed circuit board, the first retainer, and the connecting portion are inserted.

4. The display device according to claim 3, wherein, The first retainer includes: A first surface, facing the printed circuit board and spaced apart from the printed circuit board; and A second surface is disposed around the first surface and is spaced further away from the rear surface of the display module than the first surface. The connecting portion protrudes from the first surface.

5. The display device according to claim 4, wherein, The flexible circuit board is bent and extends on a side surface of the first retainer adjacent to the second end of the display module and on the first surface to connect to the printed circuit board.

6. The display device according to claim 5, wherein, The flexible circuit board is disposed in a groove defined by a recessed portion of one side surface of the first retainer.

7. The display device according to claim 4, wherein: The inner surface of the second retainer defining the receiving groove includes a first inner surface facing the first surface and the second surface, and a second inner surface facing the first inner surface; as well as The portion of the flexible circuit board disposed on the first surface and the printed circuit board disposed in the space between the first surface and the first inner surface.

8. The display device according to claim 7, wherein, The second surface contacts the portion of the first inner surface that faces the second surface.

9. The display device according to claim 7, wherein, The second end of the display module is disposed between the second inner surface and the first retainer.

10. The display device according to claim 7, wherein, The second retainer includes: The first part is disposed on the second end of the display module; The second portion extends from the first portion and has the first inner surface; and The third portion extends from the first portion and has the second inner surface. Wherein, in a first direction from the first end of the display module toward the second end of the display module, the third portion has a length smaller than that of the second portion.

Images