Bendable display device

Abstract

Provided is a bendable display device comprising: a base module; a display module including a first planar portion, a second planar portion, and a variable portion; and a bending module configured to transition display module from a first state in which the first planar portion and the second planar portion are positioned on the base module to a second state in which the variable portion is bent to cause the first planar portion to face a second direction, wherein the bending module comprises: a rear plate coupled to the rear surface of the first planar portion of the display module; a rotation arm extending from the rear plate in a direction away from the rear surface of the display module; and a first driving unit for providing power in a first direction, wherein, when the first driving unit provides power in the first direction, the rotation arm rotates and the display module transitions to the second state.

Description

Bendable display device

[0001] The present invention relates to a deformable display device, and more specifically, to a display device that changes position and is stored or withdrawn as needed.

[0002] A vehicle is a device that drives in the direction desired by the user, and recently, it is equipped not only with an engine and wheels for driving but also with various devices for the user's safety and convenience.

[0003] Vehicle convenience features are driven by development motives related to driver convenience, such as providing infotainment (information + entertainment) functions to the vehicle, supporting partial autonomous driving functions, or helping to secure the driver's visibility, such as night vision or blind spots. Examples include active cruise control (ACC), smart parking assist system (SPAS), night vision (NV), head-up display (HUD), around view monitor (AVM), and adaptive headlight system (AHS).

[0004] In addition, vehicle safety features are technologies that ensure the safety of drivers and / or pedestrians, such as the lane departure warning system (LDWS), lane keeping assist system (LKAS), and autonomous emergency braking (AEB).

[0005] Instrument clusters, which were used to provide information about the vehicle's status, are becoming digitized and are increasingly being replaced by display devices. Additionally, the center fascia, located between the driver and passenger seats, which previously only had output functions, now functions as an input device with the addition of touch capabilities.

[0006] Displays not only output information but are also equipped with touch sensors to enable simultaneous touch input, allowing them to function as both output and input units; consequently, the size of display devices applied to vehicles is trending upwards.

[0007] While increasing the size of the display panel for ease of use is desirable, it occupies a large area when not in use, and if it takes up too much space when turned off, it can detract from the vehicle's interior design.

[0008] There is a need for a display device that can be pulled out only when necessary to provide a screen of sufficient size without compromising the vehicle's interior design elements.

[0009] The objective of the present invention is to provide a display device that can be pulled out when needed and stored when not needed, thereby reducing the size of the exposed screen.

[0010] A bendable display device is provided, comprising: a base module including a guide wall; a display module including a first planar part and a second planar part and a bendable part located between the first planar part and the second planar part; and a bending module that bends the bendable part to switch from a first state in which the first planar part faces a first direction to a second state in which the first planar part faces a second direction, wherein the bending module includes a rear plate coupled to the back surface of the first planar part of the display module; a rotating arm extending from the rear plate in a direction spaced apart from the back surface of the display module; a bending link connected to the rotating arm through a rotating shaft at one end; and a first driving unit that provides power in a first direction to the bending link, wherein when the first driving unit provides power in the first direction, the rotating arm rotates and the display module switches to the second state.

[0011] The guide wall includes a bending guide rail formed on its side, and the rotating arm includes a bending guide pin that moves along the bending guide rail. The bending guide rail may include a straight section extending in the first direction and an inclined section bent at a predetermined angle at the end of the straight section in the first direction.

[0012] The guide wall comprises a first guide wall having a first bending guide rail formed on a first surface; and a second guide wall having a second bending guide rail formed on a second surface opposite to the first surface, and the rotating arm is located between the first guide wall and the second guide wall, and the bending guide pin may include a first bending guide pin moving along the first bending guide rail; and a second bending guide pin moving along the second bending guide rail.

[0013] The first bending guide rail includes a first straight section and a first inclined section that decreases in height in the first direction, and the second bending guide rail may include a second straight section formed at a lower position than the straight section of the first bending guide rail and a second inclined section that increases in height in the first direction and becomes higher than the first inclined section.

[0014] The first bending guide pin can reach the first inclined portion before the second bending guide pin reaches the second inclined portion.

[0015] The device includes a third bending guide rail formed on the second guide wall, and the rotating arm includes a third bending guide pin that moves along the third bending guide rail, wherein the third bending guide pin is spaced apart from the display module in the first state and can be positioned adjacent to the back surface of the display module in the second state.

[0016] The end of the third bending guide rail in the first direction is open, and the bending guide pin can detach from the third bending guide rail in the second state.

[0017] The bending link above may include a pin groove into which the third bending guide pin is inserted in the second state.

[0018] The first bending guide pin, the second bending guide pin, and the third bending guide pin are arranged to form a triangle, and when switching to the second state, the rotating arm can rotate such that the second bending guide pin is located at the lowest position in the first state and the third bending guide pin is located at the highest position in the second state.

[0019] It may include a fixing pin protruding from the guide wall; and a fixing slot formed in the rotating arm into which the fixing pin is inserted in the second state.

[0020] The angle between the rear plate and the rotating arm corresponds to the arrangement angle of the first planar part and the second planar part in the second state, and in the second state, the rotating arm can come into contact with the rear surface of the variable part or the second planar part of the display module.

[0021] It includes a slide rail formed on the side of the guide wall and extending in the first direction; and a slide frame having a shaft slot formed therein to which a first slide guide pin and a rotating shaft are connected, which moves along the slide rail, wherein the slide frame can move in the first direction when the first driving unit is driven.

[0022] The above slide frame has an arch shape with a predetermined curvature in the shaft slot, and the center of curvature in the second state of the variable part may correspond to the center of curvature of the shaft slot.

[0023] The center of curvature of the shaft slot may be located lower than the bottom of the slide frame.

[0024] The above-mentioned rotating shaft is located at one end of the shaft slot in the first state and at the other end of the shaft slot in the second state, and the rotating arm can rotate at an angle corresponding to the extension angle of the shaft slot when transitioning from the first state to the second state.

[0025] The guide wall includes a slide rail formed on the side and extending in the first direction, and the first drive unit may include: a motor installed on the base module; a ball screw that rotates by receiving rotational force from the motor; a drive nut through which the ball screw passes and which moves in the first direction when the ball screw rotates; a drive frame to which the drive nut is coupled and to which the other end of the bending link is rotatably coupled; and a second slide guide pin located on the side of the drive frame and inserted into the slide rail to move in the first direction.

[0026] A slide frame having a shaft slot formed therein to which the above-mentioned rotating shaft is fastened; and

[0027] It includes a second driving unit mounted on the slide frame and providing power in the first direction to the second planar portion, and the second driving unit can drive the second planar portion to slide in the first direction in correspondence with the tolerance according to the radius of curvature of the display module when the first driving unit operates.

[0028] The display module comprises a rear pin formed on the first planar portion of the display module; and a rear slot formed on the rear plate into which the rear pin is inserted, wherein the second driving unit slides the second planar portion in the first direction in the second state to switch the display module to a third state, and the rear pin can slide on the rear slot when switching from the second state to the third state.

[0029] It includes a first display rail formed on the slide frame; a second display rail formed on the rear plate and arranged continuously in a first direction with the first display rail; and a first display pin protruding from the rear surface of the variable part, wherein the first display pin can move from the first display rail to the second display rail when switching from the first state to the second state.

[0030] The rear plate includes a curved support member bent with a predetermined curvature at the end adjacent to the variable part, and the second display rail may have its front open at the portion formed on the curved support member.

[0031] The display device of the present invention can withdraw the display module when needed and store it when not in use.

[0032] In addition, the display device of the present invention is positioned horizontally when stored and vertically when withdrawn, so it can be installed even if there is no spare vertical storage space.

[0033] In addition, the display device of the present invention can reduce the size of the opening formed in the housing by implementing a slim structure of the bending module that supports the back surface of the display module.

[0034] In addition, the display device of the present invention can stably perform bending drive through three-point support of the rotating arm.

[0035] In addition, the display device of the present invention can reduce the bezel size in the left and right lateral directions of the display module by positioning the sliding guide structure of the display module in the rear direction of the display module.

[0036] Further scopes of the applicability of the present invention will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present invention are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present invention, should be understood as being given merely as examples.

[0037] FIG. 1 is a drawing illustrating the exterior of a vehicle according to an embodiment of the present invention.

[0038] FIG. 2 is a drawing illustrating the interior of a vehicle according to an embodiment of the present invention.

[0039] FIG. 3 is a perspective view illustrating a first state of a display device according to one embodiment of the present invention.

[0040] FIG. 4 is a perspective view illustrating a second state of a display device according to one embodiment of the present invention.

[0041] FIG. 5 is a perspective view illustrating a third state of a display device according to one embodiment of the present invention.

[0042] FIG. 6 is an exploded perspective view of a display device according to one embodiment of the present invention.

[0043] FIG. 7 is an exploded perspective view illustrating a base module of a display device according to one embodiment of the present invention.

[0044] FIG. 8 is a perspective view of a bending module of a display device according to one embodiment of the present invention, viewed from above.

[0045] FIG. 9 is a perspective view of a bending module of a display device according to one embodiment of the present invention, viewed from the bottom.

[0046] FIG. 10 is a perspective view of a slide module of a display device according to one embodiment of the present invention, viewed from above.

[0047] FIG. 11 is a perspective view of a slide module of a display device according to one embodiment of the present invention, viewed from the bottom.

[0048] FIGS. 12 to 15 are side perspective views illustrating the process of switching from a first state to a third state of a display device according to an embodiment of the present invention.

[0049] FIG. 16 is a perspective view showing a shaft slot and a rotating shaft in a first state of a display device according to one embodiment of the present invention.

[0050] FIG. 17 is a side view illustrating a shaft slot and a rotating shaft in a first state of a display device according to an embodiment of the present invention.

[0051] FIG. 18 is a side view illustrating a shaft slot and a rotating shaft in a second state of a display device according to one embodiment of the present invention.

[0052] FIG. 19 is a drawing illustrating a second state of a display device when there is no shaft slot.

[0053] FIG. 20 is a perspective view of a slide module and a display module viewed from below in a second state of a display device according to one embodiment of the present invention.

[0054] FIG. 21 is a perspective view of a slide module and a display module viewed from below in a third state of a display device according to one embodiment of the present invention.

[0055] FIG. 22 is a drawing illustrating a rear slot and a rear pin of a display device according to one embodiment of the present invention.

[0056] FIGS. 23 to 26 are cross-sectional views illustrating the process of switching from a first state to a third state of a display device according to an embodiment of the present invention.

[0057] FIG. 27 is a cross-sectional perspective view illustrating the first display pin and the second display rail in the state of FIG. 24.

[0058] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are assigned the same reference number, and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification and do not inherently possess distinct meanings or roles. Furthermore, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification; the technical concept disclosed in this specification is not limited by the attached drawings, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the invention.

[0059] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0060] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0061] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0062] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0063] FIG. 1 is a drawing showing the exterior of a vehicle according to an embodiment of the present invention, and FIG. 2 is a drawing showing the interior of a vehicle according to an embodiment of the present invention.

[0064] The vehicle includes wheels (70) that rotate by a power source and may be constructed with glass that is open at the front so that a user located inside can see the front. The interior of the vehicle may include a steering input device (51) for controlling the direction of travel of the vehicle, and an acceleration input device (53) and a brake input device (57) for controlling the speed of the vehicle.

[0065] The steering input device (51) can receive input regarding the direction of travel of the vehicle (10) from the user. The steering input device (51) is preferably formed in the shape of a steering wheel so that steering input is possible by rotation. According to an embodiment, the steering input device may be formed in the shape of a touch screen, a touch pad, or a button.

[0066] The acceleration input device (50) can receive input from a user for accelerating the vehicle (10). The brake input device (57) can receive input from a user for decelerating the vehicle (10). The acceleration input device (53) and the brake input device (57) are preferably formed in the form of pedals. According to an embodiment, the acceleration input device or the brake input device may be formed in the form of a touch screen, a touch pad, or a button.

[0067] The vehicle may operate in a manual mode in which the user controls the vehicle's driving direction by operating the steering device, acceleration input device, and brake input device, or it may switch to an autonomous driving mode based on information, data, and information about surrounding objects provided by external devices, allowing the driving system to perform autonomous driving without user operation.

[0068] It may include a communication device to receive information and data provided from an external device. The communication device is a device for performing communication with an external device. Here, the external device may be another vehicle, a mobile terminal, or a server.

[0069] A communication device may include at least one of a transmitting antenna, a receiving antenna, an RF (Radio Frequency) circuit capable of implementing various communication protocols, and an RF element to perform communication.

[0070] The communication device may include a short-range communication unit, a location information unit, a V2X communication unit, an optical communication unit, a broadcast transmission and reception unit, and a processor.

[0071] The vehicle may include an object detection device to obtain information about surrounding objects.

[0072] Objects may include lanes, other vehicles, pedestrians, motorcycles, traffic signals, lights, roads, structures, speed bumps, terrain features, animals, etc. Object detection devices may include cameras, radar, lidar, ultrasonic sensors, and infrared sensors.

[0073] The driving system is a system that controls various operations of the vehicle and can operate in autonomous driving mode; in manual mode, the driving system can assist the user with auxiliary operations.

[0074] The driving system may include a processor and can control the power source and wheels (70) based on information received from an object detection device and a communication device.

[0075] The vehicle may include a user interface device for communicating with a user. The user interface device may receive user input and provide the user with information generated in the vehicle (10).

[0076] The user interface device may include an input unit, an internal camera (220), a bio-sensing unit, an output unit (25), and a processor. According to an embodiment, the user interface device may include additional components other than the components described, or may not include some of the components described.

[0077] The output unit (25) is intended to generate output related to sight, hearing, or touch. The output unit (25) may include at least one of a display device and an audio output unit, and may display graphics corresponding to various information through the display device. The display device may include a display panel comprising one of a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display.

[0078] As display panels become thinner and their shapes become more diverse, the size of the output section can increase and the placement location can become more varied. Additionally, the display device can form a layer with a touch sensor that recognizes touch, allowing the output section to function as an input section as well.

[0079] Display devices can be installed in locations traditionally used for inputs, such as the steering wheel, instrument panel, seats, pillars, doors, center console, headlining, sun visor, and windshield. Accordingly, the size of display devices applied to vehicles is trending upwards.

[0080] While it is good for the size of the display panel (410) to increase for ease of use, if it takes up a large area when not in use and takes up too much area when turned off, it can be a factor that harms the interior design of the vehicle.

[0081] There is a need for a display device that can be pulled out only when necessary to provide a screen of sufficient size without compromising the vehicle's interior design elements.

[0082] Accordingly, the present invention provides a display device that can reduce the size of the exposed screen by being pulled out when necessary and retracted when unnecessary. Although the display device of the present invention is described based on being mounted in a vehicle, it may also be installed in moving driving devices other than vehicles and in fixed locations.

[0083] FIG. 3 is a perspective view illustrating a first state of a display device (1000) according to one embodiment of the present invention, and FIG. 4 is a perspective view illustrating a second state of a display device (1000) according to one embodiment of the present invention.

[0084] FIG. 5 is a perspective view illustrating a third state of a display device (1000) according to an embodiment of the present invention. FIG. 3 to FIG. 5 are perspective views taken obliquely from the upper side, and the lower left corner of the drawing is the front, and the front can be described as the first direction below.

[0085] The display device (1000) of the present invention may include a base module (100) fixed to a vehicle, etc. and a display module (400) movable on the base module (100). The display module (400) may include a flexible display panel (410) and may be bent and deformed as shown in FIGS. 4 and 5.

[0086] The display module (400) includes a first planar section (401) and a second planar section (402) that maintain a flat state, and may include a variable section (403) located between them. The planar section located in the first direction is called the first planar section (401), and the planar section located in the opposite direction is called the second planar section (402).

[0087] To implement the variable portion (403), the display module (400) may use a flexible display panel (410), such as an organic light-emitting diode panel capable of bending deformation, and the distinction between the first flat portion (401), the second flat portion (402), and the variable portion (403) may be determined by the back structure of the display panel (410).

[0088] The first planar section (401) and the second planar section (402) may include a flat back support structure for connecting a drive unit or guide structure that provides power for driving the display module (400). As shown in FIG. 3, the variable section (403) has a plurality of bending bars (423) extended in a horizontal direction that support the back of the display panel (410), and the angle between the bending bars (423) changes, and the curvature of the variable section (403) can change.

[0089] A housing (500, see FIG. 12) in which a display device (1000) is housed may be included, and the housing (500) may have a panel opening (510, FIG. 12) formed in a first direction of the display device (1000) through which a display module (400) can pass. The display device (1000) of the present invention is inserted and removed through the panel opening (510) and may optionally be exposed to a user.

[0090] The first state illustrated in FIG. 3 may be a state in which the display module (400) is housed inside a housing and is not in use. The second state illustrated in FIG. 4 is a state in which only a part of the display module (400), including the first planar portion (401), is exposed through the opening (510), and unlike the first state, the first planar portion (401) faces downward.

[0091] Here, the downward direction can be referred to as the second direction to distinguish it from the first direction mentioned above, and the second direction may be an angle close to 90° with respect to the first direction, but is not necessarily limited thereto, and means bending toward a direction different from the first direction.

[0092] The second state is a state in which the angle between the first planar part (401) and the second planar part (402) becomes smaller than in the first state, and the variable part (403) can move in the first direction so that the display module (400) is drawn out through the panel opening (510) as bending deformation occurs with a predetermined curvature.

[0093] The third state is a state in which the display module (400) is further extended from the second state, resulting in a larger area facing the second direction. The second state, in which only a portion of the display module (400) is extended, can be called a half screen, and the state in which the display module (400) is extended to the maximum can be called a full screen.

[0094] FIG. 6 is an exploded perspective view of a display device (1000) according to one embodiment of the present invention. The display device (1000) of the present invention may include a base module (100), a bending module (200), a slide module (300), and a display module (400).

[0095] The base module (100) is fixed to a vehicle, etc. and may include a guide wall (110) formed with rails (120, 130) to guide the movement of the bending module (200) and the slide module (300) as a driving part. A single guide wall (110) may be provided, but a pair may be arranged spaced apart laterally so that the display module (400) can move in a balanced manner.

[0096] A base plate (150) connecting the guide walls (110) forms the bottom surface of the display device (1000), and a first driving part (210) of the bending module (200) can be seated on the base plate (150).

[0097] FIG. 7 is an exploded perspective view illustrating a base module (100) of a display device (1000) according to an embodiment of the present invention. A plurality of rails (121, 122, 123, 130) formed on a guide wall (110) may be included, and a first guide wall (111) and a second guide wall (112) may be configured so that the plurality of rails (121, 122, 123, 130) do not overlap each other.

[0098] The first surface (111a) of the first guide wall (111) and the second surface (112b) of the second guide wall (112) can be arranged to face each other, and the rotating arm (230) of the bending module (200) can be positioned between the first guide wall (111) and the second guide wall (112).

[0099] A bending guide pin (260) protruding laterally from the rotating arm (230) can be inserted into the bending guide rail (120). The bending guide rail (121, 122, 123) can be formed separately on the first surface (111a) of the first guide wall (111) and the second surface (112b) of the second guide wall (112). The bending guide rail (121, 122, 123) can be composed of a horizontal straight section (121a, 122a, 123a) and an inclined section (121b, 122b, 122c) located at the end of the first direction and inclined upward or downward.

[0100] The rotating arm (230) can rotate as the position of the first to third bending guide pins (261, 262, 263) changes through the position and angle of the inclined portions (121b, 122b, 122c). For example, the rotating arm (230) can rotate by configuring the inclined portion (121b) of the first bending guide rail (121) to face downward and the inclined portion (122b) of the second bending guide rail (122) to face upward.

[0101] The guide wall (110) may include a slide rail (130) that guides the sliding movement of the slide module (300) in addition to the bending guide rails (121, 122, 123) that guide the driving of the bending module (200).

[0102] It may include a first slide pin (370) that moves along the slide rail (130) of the slide module (300). The slide rail (130) may be formed on the first surface (112a) of the second guide wall (112) as shown in FIG. 7 so that the path of the slide pin (270) does not overlap with the drive of the rotating arm (230). Alternatively, it may be formed on the second surface (111b) of the first guide wall (111) where the bending guide rail (120) is not formed.

[0103] The display module (400) may include a bending module (200) and a slide module (300) for switching from a first state to a second state and from a second state to a third state, or vice versa.

[0104] FIG. 8 is a perspective view of a bending module (200) of a display device (1000) according to one embodiment of the present invention viewed from the top, and FIG. 9 is a perspective view of a bending module (200) of a display device (1000) according to one embodiment of the present invention viewed from the bottom.

[0105] The bending module (200) induces bending deformation of the variable part (403) by pushing the first flat part (401) of the display module (400) in a first direction to switch from a first state to a second state, while simultaneously changing the angle of the first flat part (401). The bending module (200) may include a rear plate (240), a rotating arm (230), a bending link (220), and a first driving part (210).

[0106] The rear plate (240) can be attached to the back surface of the first flat portion (401) of the display module (400). The rear plate (240) transmits the driving force of the bending module (200) to the first flat portion (401) through a pin-slot connection to the first flat portion (401) without interfering with the driving of the slide module (300).

[0107] When the bending module (200) is driven, the first planar portion (401) can be switched in the arrangement direction, and when the slide module (300) is driven, the display module (400) can be slid independently of the rear plate (240) to switch from the second state to the third state.

[0108] The rear plate (240) may include a rear slot (241) extended in a first direction. The rear plate (240) can be pin-slot coupled with the first flat portion (401) through a rear pin (443) that passes through the rear slot (241) and is fastened to the back surface of the first flat portion (401) of the display module (400).

[0109] The rotating arm (230) can be extended at a predetermined angle with respect to the rear plate (240). When the rotating arm (230) rotates and the arrangement changes, the arrangement of the rear plate (240) changes, and the first state can be switched to the second state.

[0110] The connecting portion (235) of the rotating arm (230) and the rear plate (240) is a section that supports the bent portion of the variable portion (403) in the second state, and may include a curve corresponding to the curvature of the variable portion (403) so that the variable portion (403) can bend into a curve with a predetermined curvature.

[0111] It may include a flat support portion located on the first flat portion of the rear plate (240) and on the back surface of the flat cover (321), and a curved support portion (245) having a curved surface with a curvature corresponding to the curvature of the rotating arm (230) and the connecting portion at the end of the third direction which is the reverse direction of the first direction of the flat support portion.

[0112] The rotating arm (230) may include a plurality of bending guide pins (260). The bending guide pin (260) is a protrusion that is inserted into a bending guide rail (120) formed in the guide wall (110) and moves along the bending guide rail (120). It may include a rotating bearing or roller on the outer surface to facilitate movement along the bending guide rail (120).

[0113] A first bending guide pin (261) that moves along a first bending guide rail (121) formed on the first surface of a first guide wall (111) and a second bending guide pin (262) that moves along a second bending guide rail (122) formed on the second surface of a second guide wall (112) can be formed in the opposite direction of the rotating arm (230).

[0114] The bending guide pin (260) can move along the bending guide rail (120) to induce rotational movement of the rotating arm (230). The first bending guide rail (121) and the second bending guide rail (122) intersect each other (see FIG. 12) and can change the arrangement of the rotating arm (230).

[0115] Although rotational movement can be induced with only two-point support including a first bending guide pin (121) and a second bending guide pin (122), a third bending guide rail (123) and a third bending guide pin (263) may be further included for more stable support.

[0116] Three bending guide pins (260) can be arranged in a triangular shape to provide stable support. Referring to FIGS. 12 to 14, the rotating arm (230) can rotate as the positions of the three bending guide pins (260) change between the first and second states.

[0117] The rotating arm (230) can be rotatably connected to one end of the bending link (220) through the rotating shaft (250), and the rotating arm (230) receives power from the first driving unit (210) through the bending link (220) and rotates independently of the bending link (220) and can induce bending deformation of the variable unit (403).

[0118] The first drive unit (210) may be fixed to the base module (100) and may be composed of a first motor (211), a first gear block (212), a first ball screw (213), and a first drive nut (214). It may include a first gear block (212) that transmits the rotational force of the first motor (211) to the first ball screw (213). When the first ball screw (213) extended in the first direction rotates, the first drive nut (214) through which the first ball screw (213) passes moves along the extension direction of the first ball screw (213), and the position in the first direction may change.

[0119] The first drive nut (214) is fastened to the drive frame (225), and the drive frame (225) may include a second slide pin (270) fastened to a slide rail (130) formed on the guide wall (110) so as to enable driving only in the first direction.

[0120] The slide rail (130) along which the second slide pin (270) moves can be configured to move along the same slide rail (130) as the first slide pin (370) that guides the first direction slide movement of the slide module (300).

[0121] The bending link (220) provides a driving force to the rotating arm (230) that moves in the first direction of the first driving unit (210) or in the third direction which is the opposite direction. The rotating arm (230) can convert the driving force of the first driving unit (210), which is provided in a linear direction, into rotational motion through the bending guide rail (120) and the bending guide pin (260). The specific driving of the rotating arm (230) will be described later in the description of FIGS. 12 to 15.

[0122] FIG. 10 is a perspective view of a slide module (300) of a display device (1000) according to one embodiment of the present invention, viewed from above.

[0123] When the slide module (300) switches from the second state to the third state, it pushes the second flat portion (402) of the display module (400) in the first direction, causing the first flat portion (401) to move further in the second direction, thereby increasing the exposed area of ​​the display module (400).

[0124] The slide module (300) may include a slide frame (320) connected to the bending link (220) of the bending module (200) and the rotating shaft (250), and a second drive unit (310) fixed to the slide frame (320).

[0125] The second drive unit (310) may include a second motor (311), a second ball screw (313) that rotates by receiving power from the second motor (311) and extends in a first direction, and a second gear block (312) composed of a plurality of gears that transmit the power of the second motor (311) to the second ball screw (313).

[0126] It may include a second drive nut (314) through which the second ball screw (313) passes and moves in the first direction. A bearing ball may be interposed between the second drive nut (314) and the second ball screw (313) to reduce the gap between the two members and reduce friction, thereby allowing the movement of the second drive nut (314) to be smooth. The second drive nut (314) may be fastened to a nut fastening part (430) located on the second flat cover (422, FIG. 11) of the display module (400).

[0127] FIG. 11 is a perspective view of a slide module (300) of a display device (1000) according to one embodiment of the present invention, viewed from below.

[0128] The display panel (410) is composed of a first flat section (401), a second flat section (402), and a variable section (403) located between them, and the bending module (200) provides power to the first flat section (401) and the slide module (300) provides power to the second flat section (402).

[0129] A panel cover (420) located on the back surface of a flexible display panel (410) may be composed of a flat cover (421, 422) on the back surface of a first flat portion (401) and a second flat portion (402), and a plurality of supporting bending bars (423) located on the back surface of a variable portion (403).

[0130] A plurality of rear pins (443) that are inserted into the rear slot (241) of the rear plate (240) of the bending module (200) may be positioned on the back surface of the first flat section (401). When transitioning from the second state to the third state, if the slide module (300) pushes the second flat section (402) in the second direction, and the first flat section (401) is pushed and moves in the second direction, the rear pins (443) move in the second direction along the rear slot (241).

[0131] The driving of the rear pin (443) and the rear slot (241) will be described in more detail when describing the driving of the slide module (300) of FIGS. 20 and FIGS. 21.

[0132] It may include a sub-rear slot (241) located on the back of the display module (400) opposite to the rear pin (443) and rear slot (241), and a sub-rear pin (443) protruding from the rear plate (240).

[0133] The panel gear (447) located on the first flat cover (421) engages with the panel rack gear (243) located on the rear plate (240) to prevent slippage when the display module (400) slides.

[0134] A pair of panel gears (447) may be provided as shown in FIG. 11 and may be connected by a gear shaft (448) for synchronization of the pair of panel gears (447).

[0135] The variable portion (403) has a plurality of bending bars (423) extended in the horizontal direction that support the back surface of the display panel (410), and the angle between the bending bars (423) changes, and the curvature of the variable portion (403) can change. The bending bars (423) can be connected to adjacent bending bars (423) with a flexible material.

[0136] The bending bar (423) may include a first display pin (441) on its back surface. The first display pin (441) may have a hook shape that protrudes from the back surface of the bending bar (423) and bends laterally.

[0137] Since the spacing may be too narrow when the first display pin (441) is formed on all bending bars (423), the bending bars (423) of this embodiment may alternately arrange bending bars (423) that include the first display pin (441) and bending bars (423) that do not include the first display pin (441) to provide a space in which the first display pin (441) can move when the variable part (403) is bent.

[0138] The first display pin (441) moves along the first display rail (341) formed on the slide module (300) in the first state (see FIG. 24), and when transitioning to the second state, it moves to the second display rail (242) of the rear plate (240) and can move along the second display rail (242) (see FIG. 25 and FIG. 26).

[0139] When transitioning from the second state to the third state, the first display pin (441) can move in the second direction along the second display rail (242) (see FIG. 26). The driving aspect of the first display pin (441) is described in more detail later in the description of FIG. 23 through 26.

[0140] FIGS. 12 to 15 are side perspective views illustrating the process of transitioning from a first state to a third state of a display device (1000) according to an embodiment of the present invention. FIG. 12 illustrates the first state, FIG. 13 illustrates the intermediate process of transitioning from the first state to the second state, FIG. 14 illustrates the second state, and FIG. 15 illustrates the third state.

[0141] The first planar section (401) and the second planar section (402) form the same plane, and the variable section (403) is not bent. The first state is described based on the position of the first driving section (210) and the position of the second driving section (310).

[0142] When the first motor (211) of the first drive unit (210) is driven, the first ball screw (213) rotates and the first drive nut (214) pushes the drive frame (225) in the first direction. The bending link (220) also moves in the first direction together with the drive frame (225), and the rotating arm (230), which is connected to the bending link (220) by the rotating shaft (250), can also move in the first direction while receiving force.

[0143] The driving force in the first direction received by the rotating arm (230) can be converted into a force that rotates the rotating arm (230) as a plurality of guide pins move along the guide rail. At this time, since the rotating arm (230) is connected to the bending link (220) through the rotating shaft (250), the rotating arm (230) can rotate independently of the bending link (220).

[0144] The rotating arm (230) may include a first arm (231) connected to the rear plate (240), a second arm (232) extending forward from the first arm (231), and a third arm (233) bent upward from the second arm (232). The first arm (231) extends in a direction away from the display module (400) in the first state shown in FIG. 12 and supports the back of the display module (400) in the second and third states shown in FIG. 14 and FIG. 15.

[0145] Accordingly, the angle between the rear plate (240) and the first arm (231) of the rotating arm (230) may have an angle corresponding to the arrangement angle of the first planar section (401) and the second planar section (402) in the second and third states.

[0146] In particular, as illustrated in FIG. 14, the rotating arm (230) supports the variable part (403) which is not yet bent in the second state and forms a plane (facing the upper surface) with the second planar part (402). Since the end portion connected to the rear plate (240) of the first arm (231) has a curvature corresponding to the bending curvature of the variable part (403), the end portion of the first arm (231) can support the bent portion of the variable part (403) in the second and third states.

[0147] Referring to FIG. 12, the second arm (232) is bent and extended in the first direction from the other end of the first arm (231), and the third arm (233) can be bent upward from the end of the second arm (232). The third arm (233) is a part for placing the second bending guide pin (262) and the third bending guide pin (263), and the second arm (232) connects the third arm (233) and the first arm (231).

[0148] The rotating arm (230) may be configured in a form that extends from the first arm (231) to the position where the second bending guide pin (262) and the third bending guide pin (263) are formed, without the need for the first arm (231), second arm (232), and third arm (233) to have a U-shaped bent form. However, there is a problem with the size and weight of the rotating arm (230) increasing.

[0149] In addition, as shown in FIGS. 14 and 15, when the operation of the bending module (200) is completed, there is a problem where the fixing slot (234) in which the fixing pin (124) supporting the rotating arm (230) is seated becomes excessively long, so the rotating arm (230) can be configured in a U-shape.

[0150] The rotating arm (230) may include a first bending guide pin (261) and a second bending guide pin (262) that protrude laterally at different positions. As shown in FIG. 9, the first bending guide pin (261) and the second bending guide pin (262) face in different directions.

[0151] The first bending guide pin (261) can move along the first bending guide rail (121) formed on the first surface of the first guide wall (111) along the path P1. The second bending guide pin (262) can move along the second guide rail formed on the second surface of the second guide wall (112) along the path P2.

[0152] In the first state of FIG. 12, the first bending guide pin (261) is positioned above the second bending guide pin (262), but in the second state of FIG. 14, the rotating arm (230) rotates so that the second bending guide pin (262) is positioned above the first bending guide pin (261).

[0153] The first bending guide pin (261) is located on the straight section (121a) of the first bending guide rail (121) in the first state. When the first driving unit (210) is driven, it moves along the first bending guide rail (121) in the first direction and reaches the inclined section (121b), and the inclined section (122b) of the first bending guide rail (121) is tilted downward.

[0154] The inclined portion (121b) of the first bending guide rail (121) and the inclined portion (122b) of the second bending guide rail (122) intersect each other as shown in the side view in FIG. 12. However, since the first bending guide rail (121) and the second bending guide rail (122) are formed on different guide walls (110), the first bending guide pin (261) and the second bending guide pin (262) can move without interference with each other.

[0155] When the first bending guide pin (261) moves downward along the inclined portion (121a) of the first bending guide rail (121), the second bending guide pin (262) is still located on the straight portion (122a) of the second bending guide rail (122), causing the rotating arm (230) to start rotating.

[0156] As illustrated in FIG. 13, when the first bending guide pin (261) reaches the bottom (121c) of the inclined portion (121a) of the first bending guide rail (121), the first bending guide pin (261) stops briefly, and the second bending guide pin (262) moves along the inclined portion (121d) facing the upper side of the second bending guide rail (122), and the rotation of the rotating arm (230) can be performed sequentially.

[0157] The inclined portion of the first bending guide rail (121) may have a V-shape that bends from the bottom upward, and when the first bending guide pin (261) and the second bending guide pin (262) reach the first direction end of the first bending guide rail (121) and the second bending guide rail (122), the rotation of the rotating arm (230) is completed.

[0158] When controlling the rotation of the rotating arm (230) with two guide pins, problems such as the bending motion not being smooth, shaking, or twisting may occur. To ensure more stable support and rotational movement of the rotating arm (230), a third bending guide pin (263) and a third bending guide rail (123) may be further included.

[0159] The third bending guide pin (263) can be driven more stably when arranged to form a triangle with the first bending guide pin (261) and the second bending guide pin (262). Therefore, the third bending guide pin (263) can be positioned on the first arm (231) to be spaced apart from the third arm (233) on which the first bending guide pin (261) and the second bending guide pin (262) are formed.

[0160] The third bending guide rail (123) through which the third bending guide pin (263) can move can be formed on the first guide wall (111) or the second guide wall (112), and since the straight portion of the third bending guide rail (123) of the present embodiment has the same height as the straight portion of the first bending guide rail (121), it can be formed on the second guide wall (112) where the second bending guide rail (122) is formed.

[0161] However, the first arm (231) transitions to a state where it moves away from the guide wall (110) in the second state as shown in FIG. 14 and supports the back surface of the display module (400). Since the third bending guide pin (263) is located on the first arm (231), it moves along the P3 trajectory of FIG. 12 and is located on the back surface of the display module (400) in the second state as shown in FIG. 14.

[0162] Since the third bending guide pin (263) has the same horizontal height as the bending link (220) in the second state, the bending link (220) can form a pin groove (221) at a position corresponding to the third bending guide pin (263) in the second state to avoid interference with the bending link (220).

[0163] The trajectory (P3) of the third bending guide pin (263) can overlap with the display module (400) as shown in FIG. 13, so the size of the guide wall (110) cannot be increased to form the length of the third bending guide rail (123) to the end.

[0164] Accordingly, when the variable part (403) of the present invention is bent at a certain angle as shown in FIG. 13, the third bending guide pin (263) of the present invention deviates from the third bending guide rail (123) and is positioned on the back surface of the display module (400) in the second state as shown in FIG. 14. If the third bending guide pin (263) deviates from the third bending guide rail (123) in the second state, there is a problem in that the aforementioned stable three-point support cannot be achieved.

[0165] A fixing pin (124) inserted into a fixing slot (234) to support the rotating arm (230) in the second state may be formed in the guide wall (110). Referring to FIG. 7, it may be formed in the second guide wall (112), and the fixing slot (234) may be formed in the second arm (232) as shown in FIG. 9.

[0166] In the second state, the fixing pin (124) is seated at the end of the fixing slot (234), and the position of the rotating arm (230) can be stably fixed. If the rotating arm (230) does not have a U-shape and the first arm (231) and the third arm (233) are connected, the length of the fixing slot (234) can be extended.

[0167] FIG. 16 is a perspective view showing a shaft slot (350) and a rotating shaft (250) in a first state of a display device (1000) according to one embodiment of the present invention.

[0168] FIG. 17 is a side view illustrating a shaft slot (350) and a rotating shaft (250) in a first state of a display device (1000) according to an embodiment of the present invention, and FIG. 18 is a side view illustrating a shaft slot (350) and a rotating shaft (250) in a second state of a display device (1000) according to an embodiment of the present invention.

[0169] The shaft slot (350) is a slot having an arch shape formed in the slide frame (320), and the center (355) of the shaft slot (250) can be located on the outside of the slide frame (320).

[0170] The rotating shaft (250) of the present invention is not fixed at a specific point and can move and rotate in an arch shape. To guide the arch trajectory movement of the rotating shaft (250), the rotating shaft (250) is inserted into an arch-shaped shaft slot (350) and can move and rotate along the shape of the shaft slot (350).

[0171] When transitioning from the first state to the second state, the rotating shaft (250) can move from the third direction end, which is opposite to the first direction of the shaft slot (350), to the first direction end of the shaft slot (350). When transitioning from the first state to the second state, the position of the rotating shaft (250), which is the connection position of the slide frame (320) and the bending link (220), changes.

[0172] Referring to FIG. 14, when the first driving unit (210) is driven to switch from a first state to a second state, the travel distance of the slide frame (320) in the first direction may be shorter than the travel distance of the driving frame (225) in the first direction (Fig. 14, b <a). 구동 프레임(225) 이동거리(a)와 슬라이드 프레임(320)의 이동거리(b) 사이의 이동거리 차(a-b)는 샤프트 슬롯(350)의 연장길이에 상응할 수 있다.

[0173] The first planar portion (401) of the display module (400) is connected to the bending module (200), and the second planar portion (402) is connected to the slide module (300). Since the slide module (300) moves backward (in the third direction) relative to the bending module (200) by the length of the shaft slot (350), the second planar portion (402) must be moved in the first direction relative to the slide module (300) in correspondence. The second driving portion (310) of the slide module (300) can move the second planar portion (402) in the first direction relative to the slide frame (320).

[0174] Additionally, since the radius of curvature of the variable part (403) is larger than that of the curved support part (245), the second planar part (402) of the display module (400) is pulled further in the first direction by the radius of curvature. To compensate for the deviation in the slide travel distance caused by the radius of curvature that occurs during the bending deformation of the display module (400), the first driving part (210) slides the second planar part (402) in the second direction by more than the length of the shaft slot (350).

[0175] Therefore, the travel distance (c) of the second planar part (402) by the second drive unit (310) may be greater than the difference between the travel distance (a) of the drive frame (225) and the travel distance (b) of the slide frame (320) (c > ab).

[0176] The rotating shaft (250) moves along the arch-shaped shaft slot (350), and the center of the trajectory of rotation of the rear plate (240) and the rotating arm (230) may be the same as the center (355) of the shaft slot (350).

[0177] As illustrated in FIG. 18, the center of rotation (355) of the rear plate (240) and the rotating arm (230) corresponds to the center of curvature (355) of the curved surface of the variable part (403) and coincides with the center (355) of the arch shape of the shaft slot (350). The center of curvature (355) of the curved surface of the variable part (403) may be located on the outside of the rotating arm (230) and the rear plate (240).

[0178] FIG. 19 illustrates a case where the rotating arm (230) moves in a first direction to receive the driving force of the first driving part (210) of the bending module (200) and the rotating shaft (250) is fixed during rotation.

[0179] Unlike the embodiments of FIGS. 17 and 18, the rear plate (240) and the rotating arm (230) rotate around a fixed rotating shaft (250), and the center of curvature of the curved surface of the variable part (403) becomes the rotating shaft (250).

[0180] As a result, as shown in FIG. 16, the thickness of the rear plate (240) and the bending module (200) that fixes it becomes thicker. Since the rear plate (240) passes through the panel opening (510) of the housing (500) and is located on the outside in the second and third states, if the thickness of the rear plate (240) is thicker, the size of the panel opening (510) must also be larger. If the size of the panel opening (510) is larger, there is a problem that internal parts are visible through the panel opening (510) even in the first state.

[0181] The rotational trajectory drawn by the rotation shaft (250) moving along the arch-shaped shaft slot (350) of the present invention rotates around a virtual center (355) located on the outer side of the rear plate (240) or the rotation arm (230). Accordingly, the display device (1000) of the present invention can implement a rotation arm (230) and a rear plate (240) that are thinner than the embodiment of FIG. 19, and thus the size of the panel opening (510) can also be reduced.

[0182] After the operation of the bending module (200) is completed and the transition to the second state is completed, the first planar part (401) may be moved further in the second direction as shown in FIG. 5 to transition to a third state in which the area of ​​the display module (400) facing forward becomes wider.

[0183] FIG. 20 is a perspective view of the slide module (300) and the display module (400) viewed from below in a second state of the display device (1000) according to one embodiment of the present invention, and FIG. 21 is a perspective view of the slide module (300) and the display module (400) viewed from below in a third state of the display device (1000) according to one embodiment of the present invention.

[0184] As described in FIG. 14, the first driving unit (210) is driven primarily even when switching to the second state, so that the display module (400) is moved a certain distance (c1) relative to the slide frame (320).

[0185] When transitioning from the second state to the third state, the driving of the first driving unit (210) of the bending module (200) is terminated, and only the second driving unit (310) of the slide module (300) is driven to move the display module (400). At this time, the display module (400) can slide relative to the bending module (200).

[0186] The rear plate (240) connecting the first planar portion (401) and the bending module (200) of the display module (400) may include a plurality of rear slots (241) extended in a first direction (in a second state, a second direction) so that the structures protruding from the back of the first area of ​​the display module (400) can move in a first direction, so that the display module (400) can slide while in a fixed state.

[0187] A display pin protruding from the back of the first planar portion (401) is inserted into the rear slot (241), and the display pin can move along the longitudinal direction of the rear slot (241). In the second state, it is located at one end (upper side in the drawing) as shown in FIG. 20, but when switched to the third state, it can move to the other end (lower side in the drawing) as shown in FIG. 21.

[0188] The rear pin (443) is located at one end of the rear slot (241) in the same way as in the first state and can be switched to the second state in the state where it is located at one end of the rear slot (241). The rotational force of the bending module (200) moving in the first direction can be transmitted to the first planar portion (401) of the display module (400) through the rear slot (241) and the rear pin (443).

[0189] When transitioning from the second state to the third state in the rear slot (241), the distance the rear pin (443) moves can correspond to the driving distance of the second driving unit (310).

[0190] FIG. 22 is a cross-sectional perspective view of FIG. 20, illustrating a rear slot (241) and a rear pin (443) of a display device (1000) according to an embodiment of the present invention. Referring to FIG. 22, the rear slot (241) has a narrower width in the portion that contacts the display module (400), and the rear pin (443) has a wider width of a roller or bearing formed therein to prevent the rear pin (443) from detaching from the rear slot (241).

[0191] After the rear plate (240) is seated on the back surface of the first flat portion (401), the rear pin (443) can be fixed to the back surface of the first flat portion (401) by passing through the rear slot (241). To enable stable sliding movement of the display module (400), the rear pin (443) and the rear slot (241) may include at least two or more.

[0192] Referring to FIG. 8, the rear plate (240) may further include an auxiliary rear pin (244) protruding toward a first plane of the display module (400). The auxiliary rear pin (244) is inserted into an auxiliary rear slot (444, see FIG. 11) formed in the first plane portion (401) and can move along the length of the auxiliary rear slot (444).

[0193] The auxiliary rear slot (444) and the auxiliary rear pin (244) are not a fastening structure between the rear plate (240) and the display module (400), but simply serve to assist in the sliding movement in the second direction when transitioning from the second state to the third state.

[0194] FIGS. 23 to 26 are cross-sectional views illustrating the process of switching from a first state to a third state of a display device (1000) according to an embodiment of the present invention, and FIG. 27 is a cross-sectional perspective view illustrating the first display pin (441), the first display rail (341), and the second display rail (242) of the state of FIG. 24.

[0195] The first display pin (441) may have a hook shape that protrudes from the back of the bending bar (423) and bends laterally. The first display pin (441) may include a roller or bearing on its outer surface for smooth sliding movement.

[0196] The first display rail (341) and the second display rail (242) are also open toward the side, and the first display pin (441) can move in contact with at least one of the upper surface (the surface adjacent to the display module (400)) or lower surface (the surface spaced apart from the display module (400)) of the first display rail (341) and the second display rail (242).

[0197] It may include a plurality of first display pins (441) protruding from the back surface of the variable part (403). Since the first flat part (401) is entirely composed of a single solid material, the combined rear pins (443) can sufficiently guide the sliding movement of the first flat part (401) even if one is provided on each of the left and right sides.

[0198] However, since the variable part (403) is composed of a plurality of adjacent bending bars (423) in the first direction, the number of first display pins (441) is greater than the number of rear pins (443) so that each bending bar (423) can slide without being separated from the rear support structure. In this embodiment, an embodiment is illustrated in which one rear pin (443) is provided on both sides for every two bending bars (423).

[0199] If they are provided on adjacent bending bars (423), problems may occur where they touch each other in the bending section, and if they are spaced too far apart, it may be difficult to guide the movement of sliding while forming the bending shape of the variable part (403).

[0200] The first display pin (441) can be positioned on the first display rail (341) formed on the slide frame (320) in the first state as shown in FIG. 23. The first display rail (341) is straight and guides only the linear movement of the first display pin (441) in the first direction.

[0201] When transitioning from the first state to the second state, the first display pin (441) moves away from the first direction end of the first display rail (341) as shown in FIG. 24 and moves to the second display rail (242) of the rear plate (240), thereby changing the curvature of the variable part (403).

[0202] A second display rail (242) is formed on the rear plate (240), and when the display module (400) switches from a second state to a third state, the first display pin (441) can move along the second display rail (242) in a second direction (see FIG. 26).

[0203] The rear plate (240) may include a curved support (245) having a curved surface with a curvature corresponding to the shape of the connecting part (235) of the rotating arm (230) at the end of the third direction. The second display rail (242) extends to the curved support (245), and the portion located on the back of the variable part (403) of the second display rail (242) corresponding to the shape of the curved support (245) has a curve.

[0204] However, as illustrated in FIGS. 24 and 27, the second display rail (242) is open so that the first display pin (441) can move from the first display rail (341) to the second display rail (242) as bending is performed. The upper surface, i.e., the surface facing the back of the display module (400), is open.

[0205] If the second display rail (242) does not extend to the curved support (245), it may be difficult for the first display pin (441) to move from the first display rail (341) to the second display rail (242). Therefore, the portion (242b) of the second display rail (242) formed on the curved support (245) serves to guide the first display pin (441) to move stably to the second display rail (242).

[0206] In the second state, the variable part (403) has an area facing the upper surface that is larger than the area facing the front (first direction), so that the first display pin (441) is partially located on the first display rail (341).

[0207] When the second driving unit (310) pushes the second flat unit (402) in the first direction, the first display pin (441) moves to the second display rail (242), and the area of ​​the variable unit (403) facing forward is expanded. The variable unit (403) can push the first flat unit (401) in the second direction to switch to a third state in which the area of ​​the display module (400) facing forward is maximized as shown in FIG. 26.

[0208] The second planar section (402) can be connected to the second drive nut (314) of the second drive section (310) and move in the first direction, and may further include a second display pin (442) protruding from the back of the second planar section (402) so that the movement of the second planar section (402) in the first direction is performed stably without twisting.

[0209] The second display pin (442) can move along the third display rail (343) formed on the slide frame (320). As shown in FIG. 11, the second display pin (442) is located on the solid first flat cover (421), so fewer pins can be provided compared to the first display pin (441). This embodiment includes a total of four second display pins (442), two on each side.

[0210] Referring to FIG. 10, a third display rail (343) that is open toward the side is formed on both sides facing each other. When the first display pin (441) and the second display pin (442) are positioned in a continuous position in the first direction, the first display rail (341) and the third display rail (343) can be connected.

[0211] However, as shown in FIG. 11, the first display pin (441) and the second display pin (442) may be located on different planes, and in this case, referring to FIG. 10, the second display rail (242) and the first display rail (341) may also be located on different planes, so that the side of the slide frame (320) may be divided into a first side (321) and a second side (322).

[0212] The third display rail (343) and the first display rail (341) may be spaced apart laterally from the display device (1000) so that the second display pin (442) can pass through.

[0213] As described above, the display device (1000) of the present invention can withdraw the display module when needed and store it when not in use.

[0214] In addition, the display device (1000) of the present invention is positioned horizontally when stored and vertically when withdrawn, so it can be installed even if there is no spare vertical storage space.

[0215] In addition, the display device (10) of the present invention can reduce the size of the panel opening (510) formed in the housing (500) by implementing a slim structure of the bending module (200) that supports the back surface of the display module (400).

[0216] In addition, the display device (1000) of the present invention can stably perform bending driving through three-point support of the rotating arm (230).

[0217] In addition, the display device (1000) of the present invention can reduce the bezel size in the left and right lateral directions of the display module (400) by positioning the sliding guide structure of the display module (400) in the rear direction of the display module (400).

[0218] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

[0219] Regarding various embodiments for implementing the present invention, descriptions that are redundant with those described above in the previous section on the best mode for carrying out the invention are omitted.

[0220] Since the present invention is applicable to display devices in various fields, its industrial applicability is recognized.

Claims

1. A base module including a guide wall; A display module comprising a first planar section, a second planar section, and a bendable part located between the first planar section and the second planar section; and It includes a bending module that bends the variable part to switch from a first state in which the first planar part faces a first direction to a second state in which the first planar part faces a second direction, and The above bending module is A rear plate coupled to the back surface of the first planar portion of the display module; A rotating arm extending from the rear plate in a direction spaced apart from the back surface of the display module; A bending link connected to the rotating arm via a rotating shaft at one end; and It includes a first driving unit that provides power in a first direction to the above bending link, When the first driving unit provides power in the first direction, the rotating arm rotates and the display module switches to the second state. Bendable display device.

2. In Paragraph 1, The above guide wall includes a bending guide rail formed on the side, and The above-mentioned rotating arm includes a bending guide pin that moves along the bending guide rail, and The bending guide rail is characterized by including a straight section extending in the first direction and an inclined section bent at a predetermined angle at the end of the straight section in the first direction. Bendable display device.

3. In Paragraph 2, The above guide wall is A first guide wall having a first bending guide rail formed on a first surface; and It includes a second guide wall having a second bending guide rail formed on a second surface facing the first surface, and The above-mentioned rotating arm is located between the first guide wall and the second guide wall, and The above bending guide pin is A first bending guide pin that moves along the first bending guide rail; and Characterized by including a second bending guide pin that moves along the second bending guide rail. Bendable display device.

4. In Paragraph 3, The first bending guide rail includes a first straight section and a first inclined section whose height decreases in the first direction, and The second bending guide rail is characterized by including a second straight section formed at a position lower than the straight section of the first bending guide rail and a second inclined section that increases in height in the first direction and becomes higher than the first inclined section. Bendable display device.

5. In Paragraph 4, Characterized by the first bending guide pin reaching the first inclined portion before the second bending guide pin reaches the second inclined portion. Bendable display device.

6. In Paragraph 3, It includes a third bending guide rail formed on the second guide wall, and The above-mentioned rotating arm includes a third bending guide pin that moves along the third bending guide rail, and The above third bending guide pin is In the first state above, it is spaced apart from the display module, and Characterized by being positioned adjacent to the back surface of the display module in the second state above. Bendable display device.

7. In Paragraph 6, The third bending guide rail has an open end in the first direction, and The bending guide pin is characterized by deviating from the third bending guide rail in the second state. Bendable display device.

8. In Paragraph 6, The above bending link is Characterized by the insertion of the third bending guide pin in the second state. Bendable display device.

9. In Paragraph 6, The first bending guide pin, the second bending guide pin, and the third bending guide pin are arranged to form a triangle, and When transitioning to the second state Characterized by the rotating arm rotating such that in the first state, the second bending guide pin is located at the lowest position, and in the second state, the third bending guide pin is located at the highest position. Bendable display device.

10. In Paragraph 3, A fixing pin protruding from the above guide wall; and Characterized by including a fixing slot formed in the rotating arm and into which the fixing pin is inserted in the second state. Bendable display device.

11. In Paragraph 1, The angle between the rear plate and the rotating arm corresponds to the arrangement angle of the first planar part and the second planar part in the second state, and In the second state above, the rotating arm is characterized by contacting the back surface of the variable part or the second planar part of the display module. Bendable display device.

12. In Paragraph 1, A slide rail formed on the side of the guide wall and extending in the first direction; and It includes a first slide guide pin that moves along the slide rail and a slide frame having a shaft slot formed therein to which the rotation shaft is connected. The above slide frame is characterized by moving in a first direction when the first driving unit is driven. Bendable display device.

13. In Paragraph 12, The above slide frame is The above shaft slot has an arch shape with a predetermined curvature; Characterized that in the second state of the above variable part, the center of curvature corresponds to the center of curvature of the shaft slot. Bendable display device.

14. In Paragraph 13, The center of curvature of the shaft slot is characterized by being located lower than the bottom of the slide frame. Bendable display device.

15. In Paragraph 13, The above rotating shaft is In the first state, it is located at one end of the shaft slot, and in the second state, it is located at the other end of the shaft slot. The above rotating arm is Characterized by rotating at an angle corresponding to the extension angle of the shaft slot when transitioning from a first state to a second state. Bendable display device.

16. In Paragraph 1, It includes a slide rail formed on the side of the guide wall and extending in the first direction, The above first driving unit is, Motor installed in the above base module; A ball screw that rotates by receiving the rotational force of the above motor; A driving nut through which the ball screw passes and which moves in the first direction when the ball screw rotates; A drive frame to which the drive nut is coupled and to which the other end of the bending link is rotatably coupled; and Characterized by including a second slide guide pin located on the side of the drive frame and inserted into the slide rail to move in the first direction. Bendable display device.

17. In Paragraph 1, A slide frame having a shaft slot formed therein to which the above-mentioned rotating shaft is fastened; and It includes a second driving unit mounted on the slide frame and providing power in the first direction to the second planar portion, The second driving unit is characterized by driving the second planar portion to slide in the first direction in correspondence with the tolerance according to the radius of curvature of the display module when the first driving unit operates. Bendable display device.

18. In Paragraph 17, A rear pin formed on the first planar portion of the display module; and It includes a rear slot formed in the rear plate and into which the rear pin is inserted, The second driving unit slides the second planar part in the first direction in the second state to switch the display module to a third state, and The rear pin is characterized by sliding on the rear slot when transitioning from the second state to the third state. Bendable display device.

19. In Paragraph 18, A first display rail formed on the slide frame above; A second display rail formed on the rear plate and arranged continuously in a first direction with respect to the first display rail; and It includes a first display pin protruding from the back surface of the above variable part, The first display pin is characterized by moving from the first display rail to the second display rail when transitioning from the first state to the second state. Bendable display device.

20. In Paragraph 19, The above rear plate is The end adjacent to the above variable part includes a curved support member bent with a predetermined curvature, and The above second display rail is The portion formed on the above-mentioned curved support is characterized by having an open front surface. Bendable display device.

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