Flexible display device

Abstract

A flexible display device is disclosed. [Solution] According to one embodiment of the present disclosure, a flexible display device is provided, comprising: a display unit that is flexibly deformable and configured to move vertically to be retracted or pulled out, and displays an image on its front surface; a housing that includes an opening on one side of the top and has an internal space for the display unit to be retracted or pulled out; a plate disposed adjacent to one side of the display unit; a plurality of rigid bars including a magnetic material attached to the plate and configured to support the rear surface of the display unit opposite to the front surface; and a bezel that is coupled to the display unit and configured to slide vertically so that the display unit is retracted or pulled out.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a flexible display device.

BACKGROUND ART

[0002] The content described in this section merely provides background information for the present disclosure and does not constitute prior art.

[0003] A display device capable of providing various types of information may be installed in the interior of a vehicle, for example, at a center fascia, a dashboard, or the like. The display device can provide not only various information related to the vehicle but also various entertainment content. For example, the display device can play videos, receive terrestrial broadcasting or satellite broadcasting and display them on a screen, can provide information for user convenience such as vehicle status, weather, news, etc., and can also perform a navigation function.

[0004] Existing display devices have a problem that their shape and position are fixed once they are mounted on a vehicle.

[0005] Even if the shape and position of the display device can be changed, there is a problem that it is difficult to satisfy all of the consumer's design requirements and the durability requirements of the display device.

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0006] A main object of the present disclosure is to provide a flexible display device whose shape and position can be changed while satisfying the consumer's design requirements and durability requirements.

[0007] The problems that this invention aims to solve are not limited to those mentioned above, and other problems not mentioned will be clearly understood by an ordinary person from the description below. [Means for solving the problem]

[0008] According to one embodiment of the present disclosure, a flexible display device is provided, comprising: a display unit that is flexibly deformable and configured to move vertically to be retracted or pulled out, and displays an image on its front surface; a housing that includes an opening on one side of its upper part and has an internal space for the display unit to be retracted or pulled out; a plate positioned adjacent to one side of the display unit; a plurality of rigid bars, including a magnetic material attached to the plate, configured to support the rear surface of the display unit opposite to the front surface; and a bezel coupled to the display unit and configured to slide vertically so that the display unit is retracted or pulled out. [Effects of the Invention]

[0009] According to one embodiment of the present disclosure, a magnetic material is attached to a plurality of rigid bars, and the magnetic material is attached to a plate using magnetism, thereby the plurality of rigid bars support the display unit from the rear, which has the effect of improving the durability of the display unit.

[0010] Furthermore, by creating a space between the bezel's joint and a second surface parallel to the joint, the durability of the bezel supporting the display can be improved.

[0011] Furthermore, when the display unit is pulled out, the first and second guide rails, which are connected to the housing and bezel, form a double layer (2-layer), which has the effect of improving the durability of the bezel and the display unit. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a perspective view showing a first state of a flexible display device according to one embodiment of the present disclosure. [Figure 2] Figure 2 is an exploded perspective view of a flexible display device according to one embodiment of the present disclosure. [Figure 3] Figure 3 is a cross-sectional view taken along line A-A' in Figure 1. [Figure 4] Figure 4 is a cross-sectional view showing a first state of a flexible display device according to one embodiment of the present disclosure, cut along line B-B' in Figure 1. [Figure 5] Figure 5 is a cross-sectional view showing a second state of a flexible display device according to one embodiment of the present disclosure, cut along line B-B' in Figure 1. [Figure 6] Figure 6 is a cross-sectional view taken along line C-C' in Figure 1. [Modes for carrying out the invention]

[0013] Hereinafter, some embodiments of this disclosure will be described in detail with reference to illustrative drawings. When assigning reference numerals to the components in each drawing, it should be noted that, as far as possible, identical components will have the same reference numeral, even if they are shown in other drawings. Furthermore, when describing this disclosure, if it is determined that a specific description of a related known configuration or function may obscure the gist of this disclosure, such detailed description will be omitted.

[0014] When describing the components of the embodiments relating to this disclosure, symbols such as 1st, 2nd, i), ii), a), b), etc., may be used. Such symbols are used solely to distinguish a component from other components, and do not limit the nature, order, or sequence of the component in question. When a specification states that a part "includes" or "companies" a component, this does not exclude other components, unless explicitly stated to the contrary, but rather means that it may further include other components.

[0015] When a component is described as being "coupled", "joined", or "connected" to another component, the component may be directly coupled or connected to the other component, but it should also be understood that other components may be "coupled", "joined", or "connected" between the respective components.

[0016] Terms such as "unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware, software, or a combination of hardware and software.

[0017] It is clarified that, unless stated to the contrary, the description of any one embodiment may also be applied to other embodiments.

[0018] The description of the invention disclosed below in conjunction with the accompanying drawings is intended to describe exemplary embodiments of the present invention, and is not intended to represent the only embodiments in which the present invention may be practiced.

[0019] In this specification, the "vertical direction" means the Z-axis direction illustrated in the drawings. As used in this specification, the terms "upper part", "upper direction", and "pull-out direction" mean the +Z-axis direction, and "lower part", "lower direction", and "retraction direction" mean the -Z-axis direction. In this specification, the "left-right direction", "both sides", and "lateral direction" mean the Y-axis direction illustrated in the drawings. As used in this specification, the term "right side" means the +Y-axis direction illustrated in the drawings. In this specification, the "front-rear direction" means the X-axis direction illustrated in the drawings. As used in this specification, the terms "front" and "front face direction" mean the +X-axis direction, and "rear" and "rear face direction" mean the -X-axis direction.

[0020] FIG. 1 is a perspective view of a flexible display device according to an embodiment of the present disclosure in a first state. FIG. 2 is an exploded perspective view of the flexible display device according to an embodiment of the present disclosure. FIG. 3 is a cross-sectional view taken along line A-A' in FIG. 1.

[0021] With reference to FIGS. 1 to 3, a flexible display device 10 according to an embodiment of the present disclosure may include all or part of a display unit 160, a housing 100, a bezel 110, a plate 260, a plurality of reinforcing bars 150, and a plurality of rollers 320.

[0022] The flexible display device 10 according to an embodiment of the present disclosure may include all or part of a drum 230, an actuator 120, a first lead screw 210, and a first gear 220.

[0023] FIG. 4 is a cross-sectional view showing a first state of the flexible display device according to an embodiment of the present disclosure, taken along line B-B' of FIG. 1. FIG. 5 is a cross-sectional view showing a second state of the flexible display device according to an embodiment of the present disclosure, taken along line B-B' of FIG. 1. In FIG. 5, the state where the bezel 110 moves upward and the display unit 160 is pulled out is indicated by a two-dot chain line, and the state where the bezel 110 moves in the arrow direction and the display unit 160 is retracted is indicated by a solid line. FIG. 6 is a cross-sectional view taken along line C-C' of FIG. 1.

[0024] In the present disclosure, the first state means a state in which the entire area of the display unit 160 is pulled out in the upward direction and configured as a flat surface. The second state means a state in which the display unit 160 is retracted in the downward direction, one region of the display unit 160 is configured as a curved surface inside the housing 100, and the other region of the display unit 160 is configured as a flat surface.

[0025] Referring to Figures 1 to 6, a flexible display device 10 according to one embodiment of the present disclosure may include all or part of at least one guide rail, at least one coupling block 410, at least one guide block 420, and at least one stopper. The at least one guide rail may consist of a first guide rail 240 and a second guide rail 250. The bezel 110 may include all or part of a combination part 111, a supporting part 112, a first surface 610, and a second surface 620.

[0026] A flexible display device 10 according to one embodiment of the present disclosure may include all or part of an extension film 201 and a protector 202.

[0027] The display unit 160 is configured to be flexibly deformable in one area and can display an image on its front surface. The display unit 160 can change its form and position to a first state or a second state by the actuator 120. That is, the display unit 160 can be configured to be retracted or pulled out by moving in the vertical direction.

[0028] The display unit 160 may include a film component (not shown), a cover glass (not shown), a display panel (not shown), a first supporting panel (not shown), a second supporting panel (not shown), a plurality of rigid bars 150, and a back cover (not shown).

[0029] The film component can protect the display unit 160. The film component may be an ASF (Anti-Shatter Film), etc. If the glass is broken, the ASF can prevent glass fragments from scattering and flying. In other words, even if the cover glass is broken by an external impact, it can protect the occupants of the vehicle by preventing fragments of the cover glass from scattering.

[0030] A cover glass can cover the front of the display panel and protect it. The cover glass may be UTG (Ultra Thin Glass), but this disclosure is not necessarily limited to this.

[0031] The display panel may be formed, at least in part, from a flexible material that can be deformed. The display panel may be an OLED (Organic Light Emitting Diode), but this disclosure is not necessarily limited to this; it is sufficient if it can emit an image. The film member, cover glass, and display panel may be arranged sequentially in the front-to-back direction.

[0032] The housing 100 may include an opening (not shown) on one side of its upper surface. The housing 100 has an internal space for the display unit 160 to be retracted or pulled out. The housing 100 may consist of a front housing 101 positioned in front of the flexible display device 10, a rear housing 102 positioned at the rear, and a side housing 103 positioned on the side, but the disclosure is not necessarily limited thereto. For example, the housing 100 may consist of a front housing that covers all sides and front of the flexible display device, and a rear housing positioned at the rear.

[0033] The drum 230 is positioned inside the housing 100. The drum 230 may be configured to rotate in the left-right direction, i.e., the Y-axis direction, so that the display unit 160 passes through the opening and is retracted or pulled out.

[0034] The first lead screw 210 can rotate about its axis in the left-right direction by the drive of the actuator 120. The first gear 220 may be positioned so that the first lead screw 210 passes through it. The first gear 220 may be configured such that the bezel 110 moves up and down in accordance with the rotation of the first lead screw 210. The first lead screw 210 and the first gear 220 may be positioned on top of the drum 230.

[0035] Actuator 120 provides force to cause the bezel 110 to move vertically inward or outward. Actuator 120 may be positioned to correspond with a first lead screw 210 and a first gear 220. That is, actuator 120 can be located on top of the drum 230 and provide force to cause the first lead screw 210 and the first gear 220 to rotate. The first gear 220 may be configured to mesh with the bezel 110, and the bezel 110 can move vertically as the first gear 220 rotates. The vertical movement of the bezel 110 can cause the display unit 160 to switch between a first state and a second state.

[0036] If the actuator 120 is located at the bottom, a configuration such as an extra guide assembly is required at the top for retracting or pulling out the display unit 160. The actuator 120 of the flexible display device 10 according to this disclosure is located at the top of the drum 230, enabling stable retraction or pulling out of the display unit 160 without the need for a configuration such as an extra guide assembly, and allowing for a reduction in the overall package size. In other words, by adopting a direct drive system instead of an indirect drive system, the actuator is located at the top, and a lifting structure such as the first gear 220 can directly move the bezel 110 in the vertical direction. The actuator 120 can be adjusted to be located on the side of the drum 230 or the like within the range in which the direct drive system can be implemented in relation to the position of the actuator 120, and this disclosure is not necessarily limited to this arrangement or position of the actuator 120.

[0037] An actuator 120 of a flexible display device 10 according to one embodiment of the present disclosure may include all or some of a motor 121, a plurality of gears, a plurality of lead screws, and a plurality of worm wheels. The number, position, and arrangement of each of the motor, gears, lead screws, and worm wheels may be adjusted within a range that allows the actuator 120 to drive and provide force to rotate the first gear 220 and the first lead screw 210, and that allows the bezel 110 and the display unit 160 to move vertically.

[0038] The actuator 120 of the flexible display device 10 according to one embodiment of the present disclosure may include all or part of the following: motor 121, second gear 122, third gear 123, fourth gear 125, second lead screw 124, and worm wheel 126.

[0039] Motor 121 provides power to rotate the drum 230. When motor 121 is driven, the first lead screw 210 and the first gear 220 rotate, causing the drum 230 to rotate and the bezel 110 to move up and down.

[0040] A second gear 122 may be positioned on top of the motor 121. The second gear 122 can rotate in a first direction or in a second direction opposite to the first direction in accordance with the rotation of the motor 121. A third gear 123 may be positioned behind the second gear so as to mesh with the second gear 122. The third gear 123 can rotate in a direction opposite to the direction of rotation of the second gear 122 in accordance with the rotation of the second gear 122.

[0041] The second lead screw 124 may be coupled to the upper part of the third gear 123. By coupling with the third gear 123, the second lead screw 124 can rotate in the same direction as the rotation of the third gear 123, in accordance with the rotation of the third gear 123.

[0042] The fourth gear 125 can be coupled to the second lead screw 124 by passing through it. That is, the fourth gear 125 can be positioned to surround the outer surface of the second lead screw 124. The fourth gear 125 can rotate in the same direction as the rotation of the third gear 123 and the second lead screw 124 as the third gear 123 and the second lead screw 124 rotate.

[0043] The worm wheel 126 may be positioned in front of the fourth gear 125 and mesh with the fourth gear 125. The worm wheel 126 can rotate in a direction perpendicular to the first or second direction as the fourth gear 125 rotates. The worm wheel 126 can be coupled to the first lead screw 210 by passing through it. The rotation of the worm wheel 126 may be configured such that the first lead screw 210 rotates in the same direction as the rotation of the worm wheel 126.

[0044] The disclosure is not necessarily limited to the position and arrangement of the motor 121, the second gear 122, the third gear 123, the fourth gear 125, the second lead screw 124, and the worm wheel 126. It is sufficient that the actuator 120 is configured to provide force so that the first gear 220 and the first lead screw 210 can rotate, and so that the bezel 110 and the display unit 160 can move vertically.

[0045] As shown in Figure 2, the multiple rigid bars 150 may be configured to support the rear surface of the display unit 160 opposite to the front surface. Each of the multiple rigid bars 150 may have a shape that extends in the left-right direction. Each of the multiple rigid bars 150 may be arranged in a direction parallel to the left-right direction and attached to the display unit 160 while maintaining a certain gap. Each of the multiple rigid bars 150 may include a ferromagnet 151 and an adhesive tape 152. The ferromagnet 151 may be placed at one end of the multiple rigid bars 150. The multiple rigid bars 150 can provide rigidity to the display unit 160 by including the ferromagnet 151. That is, the ferromagnet 151 is placed at both ends of the multiple rigid bars 150, and the multiple rigid bars 150 can support the display unit 160 from the rear surface, improving durability. The multiple rigid bars 150 may also be called an apron.

[0046] The plate 260 may be positioned adjacent to one side of the display unit 160. The plate 260 may be positioned adjacent to both sides of the display unit 160 and configured to have magnetic material 151 attached to it. By attaching the magnetic material to the plate, the magnetic material 151 on both sides of the multiple rigid bars 150 can support the central portion of each of the multiple rigid bars 150, thereby improving durability.

[0047] The adhesive tape 152 serves to attach each of the multiple rigid bars 150 to the display unit 160. However, this disclosure is not necessarily limited to this, and any material that can attach the multiple rigid bars 150 to the display unit 160, such as tape, adhesive, and liquid glue, is sufficient. For example, an adhesive can be applied to a region on the display unit 160 to which the multiple rigid bars 150 are attached.

[0048] As shown in Figure 3, the multiple rollers 320 may be spaced apart on the outer surface of the drum 230. The multiple rollers 320 may be arranged along at least a portion of the perimeter of the outer surface of the drum 230. The multiple rollers 320 can rotate about an axis in the left-right direction. When the display unit 160 is retracted or pulled out, the multiple rollers 320 serve to guide the movement of the multiple rigid bars 150 and the display unit 160. In the second state, when the display unit 160 is retracted, the multiple rigid bars 150 may be arranged to be in contact with the multiple rollers 320 and the drum 230.

[0049] The bezel 110 may be configured to slide vertically in conjunction with the display unit 160, thereby causing the display unit 160 to retract or pull out. The bezel 110 may include a coupling portion 111, a first surface 610, and a second surface 620. The display unit 160 may be coupled to the front surface of the coupling portion 111. The first surface 610 may be formed to project backward from a point on one side of the coupling portion 111. The second surface 620 may be formed to extend parallel to the coupling portion 111 from the end of the first surface 610 toward the side of the bezel 110. For example, on the right side of the flexible display device 10, the first surface 610 may be formed to project in the -X-axis direction from a point to the right of the coupling portion 111. The second surface 620 may be formed to extend parallel to the coupling portion 111 toward the +Y-axis from the end of the first surface.

[0050] The bezel 110 includes a joint 111, a first surface 610, and a second surface 620, which allows for the formation of a space between the joint 111 and the second surface 620. The present disclosure is not necessarily limited to the projection or extension direction of the first surface 610 and the second surface 620. The projection or extension direction of the first surface 610 and the second surface 620 is sufficient as long as the presence of the first surface 610 and the second surface 620 allows for the formation of a space between the first surface 610 and the joint 111. The formation of a space between the first surface 610 and the joint 111 allows the bezel 110 to support the weight and load of the display unit 160 and the multiple rigid bars 150, etc., thereby improving durability.

[0051] A flexible display device 10 according to one embodiment of the present disclosure may accommodate at least one guide rail in the space formed between the coupling portion 111 and the second surface 620. The at least one guide rail may support one side of the bezel 110.

[0052] At least one guide rail may consist of a first guide rail 240 and a second guide rail 250. The first guide rail 240 may be connected to the housing 100. The second guide rail 250 may be connected to the bezel 110. The first guide rail 240 and the second guide rail 250 may have a shape that extends in the vertical direction. The first guide rail 240 and the second guide rail 250 may be arranged parallel to each other.

[0053] In the second state, the first guide rail 240 and the second guide rail 250 may be positioned parallel to the Z-axis at corresponding positions. When the bezel 110 moves upward and the display unit 160 is pulled out, the first guide rail 240 connected to the housing 100 does not move, but the second guide rail 250 connected to the bezel 110 moves upward. Therefore, in the first state, the first guide rail 240 and the second guide rail 250 may be positioned parallel to each other, as in the second state, but the second guide rail 250 may be positioned further upward than the first guide rail 240.

[0054] As shown in Figure 2, in the first state, a portion of the lower part of the second guide rail 250 and a portion of the upper part of the first guide rail 240 can be positioned at corresponding heights. That is, a double layer (2-layer) can be formed where the first guide rail 240 and the second guide rail 250 overlap. The formation of a double layer by the first guide rail 240 and the second guide rail 250 has the effect of more stably supporting the bezel 110 and the display unit 160 when the display unit 160 is extended.

[0055] As shown in Figure 6, at least one coupling block 410 may be positioned between the first guide rail 240 and the second guide rail 250. The at least one coupling block 410 plays the role of connecting the first guide rail 240 and the second guide rail 250 so that the second guide rail 250 can slide. The at least one coupling block 410 may be configured so that the first guide rail 240 guides the second guide rail 250 when the bezel 110 moves in the vertical direction.

[0056] At least one guide block 420 may be coupled to a first guide rail 240 or a second guide rail 250. At least one guide block 420 may be configured so that the first guide rail 240 is stably coupled to the housing 100. At least one guide block 420 may be configured so that the second guide rail 250 is stably coupled to the bezel 110. At least one guide block 420 may be configured so that the first guide rail 240 guides the movement of the second guide rail 250 when the bezel 110 moves vertically and the display unit 160 is retracted or pulled out.

[0057] At least one stopper may consist of a first stopper 430 and a second stopper 440. The first stopper 430 and the second stopper 440 can limit the range of movement of at least one coupling block 410. The first stopper 430 may be located above the second stopper 440. The first stopper 430 may be positioned on one side of the upper part of the second guide rail 250. The second stopper 440 may be positioned between the first guide rail 240 and the second guide rail 250. The first stopper 430 and the second stopper 440 serve to prevent at least one coupling block 410 from moving away from the second guide rail 250 in the upward direction. With regard to the arrangement of the first stopper 430 and the second stopper, this disclosure is not necessarily limited thereto, and it is sufficient that at least one coupling block 410 and the second guide rail 250 can move within a predetermined range.

[0058] A flexible display device 10 according to one embodiment of the present disclosure may include all or part of the extension film 201 and the protector 202. The bezel 110 may include a connecting portion 111 and a support portion 112.

[0059] A display unit 160 can be attached to the front surface of the connecting portion 111. The support portion extends downward from one end of the connecting portion. The display unit 160 can be retracted or pulled out by the vertical movement of the entire bezel 110, including the connecting portion 111 and the support portion 112.

[0060] The extension film 201 may be coupled to the lower end of the display unit 160. The extension film 201 may be configured to guide the display unit 160 when the bezel 110 moves vertically and the display unit 160 is retracted or pulled out. That is, the extension film 201 performs the role of extending the display unit 160. In the first state, even when the display unit 160 is moved upward and pulled out, the extension film 201 may be configured to support the display unit 160 by surrounding the drum.

[0061] In the first state, i.e., when the display unit 160 is extended, the entire area of ​​the display unit 160 may be positioned parallel to the joint 111 and a portion of the support 112 of the bezel 110. Thus, in the first state, a portion of the extension film 201 may be positioned parallel to another portion of the support 112, and the other portion of the extension film 201 may be positioned to surround the drum.

[0062] In the second state, i.e., when the display unit 160 is retracted, a portion of the upper part of the display unit 160 may be positioned parallel to the joint 111 of the bezel 110. The other portion of the display unit 160 may be positioned to surround the drum 230. That is, the display unit 160 may include a curved section. Therefore, the entire section of the extension film 201 may be positioned in a curved shape in the second state.

[0063] The protector 202 may be configured to connect and fix the display unit 160 and the extension film 201. The display unit 160 and the protector 202 can be fixed by connecting the protector 202 to the portion where the display unit 160 and the protector 202 are superimposed and connected. The protector 202 may be screw-connected to the display unit 160 and the extension film 201, but this disclosure is not necessarily limited thereto. The means for connecting the protector 202 is sufficient as long as it is a means to connect and fix the display unit 160 and the extension film 201.

[0064] A flexible display device 10 according to one embodiment of the present disclosure may include a light sensor (not shown). The light sensor may be configured to control the position of the bezel 110 or the display unit 160. The light sensor plays a role in controlling the bezel 110 or the display unit 160 to move vertically within a predetermined range by sensing the position of the bezel 110 or the display unit 160 when the bezel 110 or the display unit 160 is retracted or retracted. If the flexible display device 10 does not include a light sensor, it may include other configurations that can sense the position of the bezel 110 or the display unit 160 and control the range of movement, such as an inductive sensor or a limit switch.

[0065] The above description is merely illustrative of the technical concept of this embodiment, and a person with ordinary skill in the art to which this embodiment belongs can make various modifications and variations as long as they do not deviate from the essential characteristics of this embodiment. Therefore, this embodiment is for illustrative purposes only, not to limit the technical concept of this embodiment, and the scope of the technical concept of this embodiment is not limited by such embodiment. The scope of protection of this embodiment should be interpreted by the claims, and all technical concepts within an equivalent scope should be interpreted as being included in the scope of rights of this embodiment. [Explanation of Symbols]

[0066] 100 Housing 110 Bezel 111 Joint 112 Support part 120 Actuator 150 Stiff Bar 151 Magnetic material 160 Display section 240 First guide rail 250 Second guide rail

Claims

1. It is flexible and can be easily reshaped, and is configured to move vertically to be retracted or pulled out, and has a display unit that displays an image on the front, A housing includes an opening on one side of the upper part, and has an internal space for the display unit to be retracted or pulled out, A plate is positioned adjacent to one side of the display unit, A plurality of reinforcing bars, including a magnetic material (ferromagnet) attached to the plate, are configured to support the rear surface of the display unit opposite to the front surface, and A bezel is configured to slide vertically in conjunction with the display unit, thereby causing the display unit to retract or pull out. Flexible display devices including

2. Furthermore, a drum is positioned inside the housing and is configured to rotate about the vertical and left-right directions perpendicular to each other, thereby allowing the display unit to pass through the opening and be retracted or pulled out. An actuator provides force to cause the bezel to move vertically to retract or pull out, A first lead screw rotates about the left-right axis in accordance with the drive of the actuator, and The first gear is positioned so that the first lead screw passes through it, and is configured such that the bezel moves up and down in accordance with the rotation of the first lead screw, The flexible display device according to claim 1, wherein the first lead screw and the first gear are located on the upper part of the drum.

3. The actuator is, Arranged to correspond to the first lead screw and the first gear, The flexible display device according to claim 2, comprising one or more of a motor, a plurality of gears, a plurality of lead screws, and a plurality of worm wheels.

4. Furthermore, it includes at least one guide rail that supports one side of the bezel, The aforementioned bezel is A coupling portion to which the display unit is attached on the front, A first surface is formed protruding in the rearward direction from one point on one side of the aforementioned joint, and It includes a second surface that extends from the end of the first surface toward the side of the bezel and parallel to the joint, The flexible display device according to claim 1, wherein at least one guide rail is housed in the space formed between the joint and the second surface.

5. The at least one of the guide rails is The flexible display device according to claim 4, comprising a first guide rail coupled to the housing and a second guide rail coupled to the bezel.

6. Furthermore, it includes at least one coupling block, The flexible display device according to claim 5, wherein the at least one coupling block is configured such that the first guide rail guides the second guide rail when the bezel moves vertically by slidably coupling with the second guide rail.

7. The aforementioned bezel is The flexible display device according to claim 1, comprising a coupling portion to which the display portion is coupled on the front surface, and a support portion extending downward from one end of the coupling portion.

8. When the display unit is retracted, A portion of the upper part of the display unit is positioned parallel to the connecting portion. When the aforementioned display unit is pulled out, The flexible display device according to claim 7, wherein the entire area of ​​the display portion is arranged to correspond parallel to the connecting portion and the support portion.

9. Furthermore, an extension film is provided, which is connected to the lower end of the display unit and configured to guide the display unit when the bezel moves vertically to retract or extend the display unit, and The flexible display device according to claim 1, comprising a protector configured to connect and fix the display unit and the extension film.

10. The flexible display device according to claim 1, further comprising a light sensor configured to control the position of the bezel or the display unit.

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