Indication device

Abstract

The present invention provides a display device that allows the curvature of a display module to be adjusted by bending the display module. [Solution] The display device includes a display module and a bending module positioned on the back of the display module to bend the display module, the bending module including a cam wheel with a cam rail, a corner arm connected to the corner of the display module to bend the corner of the display module, and a cam follower connected to the corner arm so as to move along the cam rail and converting the rotational motion of the cam wheel into the linear motion of the corner arm.

Description

Technical Field

[0001] The present invention relates to a display device, and more particularly, to a display device in which a mode can be switched or converted to a bending mode in which a display module is bent.

Background Art

[0002] Generally, as flat screen display devices, there are liquid crystal display devices, plasma display devices, field emission display devices, light emitting display devices, etc. Among them, liquid crystal display devices and light emitting display devices are in the spotlight due to advantages such as mass production technology, ease of driving means, and realization of high image quality.

[0003] In recent years, along with research and development on the technical aspects of flat panel display devices, the need for research and development in the design aspects of products that can appeal to consumers has been particularly recognized. As a result, the demand for curved surface display devices or curved display devices with curvature in display devices has been gradually increasing. Curved surface display devices provide an improved viewing experience for users.

[0004] Particularly in recent years, since the size of display panels has been increasingly tending to expand, research and development on display devices that can be innovatively changed in curvature along with the slimming demanded by consumers has been actively carried out.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem to be solved by the present invention is to provide a display device capable of adjusting the curvature of a display module by bending the display module.

[0006] Another problem that the present invention aims to solve is to provide a display device that can be bent at the corners of the display module.

[0007] The problems addressed by the present invention are not limited to those mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0008] A display device according to one embodiment of the present invention includes a display module and a bending module positioned on the back of the display module to bend the display module, the bending module may include a cam wheel including a cam rail, a corner arm connected to the corner to bend the corner of the display module, and a cam follower connected to the corner arm so as to move along the cam rail and converting the rotational motion of the cam wheel into the linear motion of the corner arm.

[0009] Another embodiment of the present invention includes a display module and a bending module disposed on the back of the display module, the bending module including a rotating shaft disposed in the center of the back of the display module, a worm gear disposed perpendicular to the rotating shaft, a wheel gear that meshes with the worm gear and rotates around the rotating shaft, and a plurality of bending arms arranged radially on the back of the display module and bending the display module in conjunction with the wheel gear.

[0010] Specific details of other embodiments are included in the detailed description and drawings. [Effects of the Invention]

[0011] This invention allows for the curvature of a display module to be adjusted by bending the module.

[0012] This invention can simultaneously achieve bending of the sides and corners of a display module.

[0013] This invention can realize screen configurations optimized for various uses, such as gaming, watching movies, and document work, and can provide users with an even greater sense of immersion and a diverse viewing experience based on an ideal degree of bending.

[0014] The effects of the present invention are not limited to those exemplified above, and a wide variety of other effects are included within the present invention. [Brief explanation of the drawing]

[0015] [Figure 1] This is a front view perspective of a display device according to one embodiment of the present invention. [Figure 2] This is a front view showing a part of the configuration of a display device according to one embodiment of the present invention. [Figure 3] This is a perspective view of a part of the configuration of a display device according to one embodiment of the present invention, viewed from the rear. [Figure 4] This is a rear view showing a part of the configuration of a display device according to one embodiment of the present invention. [Figure 5] This is an exploded perspective view showing a bending module of a display device according to one embodiment of the present invention. [Figure 6] This is an exploded perspective view showing a part of the configuration of a bending module of a display device according to one embodiment of the present invention. [Figure 7] This is an exploded perspective view showing a drive unit for a display device according to one embodiment of the present invention. [Figure 8a] This diagram shows how a pair of side arms are operated by a drive unit of a display device according to one embodiment of the present invention. [Figure 8b] This diagram shows how a pair of side arms are operated by a drive unit of a display device according to one embodiment of the present invention. [Figure 9a] The figure shows how a plurality of corner arms operate by a driving unit of a display device according to an embodiment of the present invention. [Figure 9b] The figure shows how a plurality of corner arms operate by a driving unit of a display device according to an embodiment of the present invention. [Figure 10a] The rear view shows a state in which a display device according to an embodiment of the present invention is in a basic mode. [Figure 10b] The rear view shows a state in which a display device according to an embodiment of the present invention is in a bending mode.

BEST MODE FOR CARRYING OUT THE INVENTION

[0016] The advantages, features, and the methods for achieving them of this specification will become clear by referring to the embodiments described in detail below together with the accompanying drawings. However, this specification is not limited to the embodiments disclosed below, and can be embodied in various different shapes. Merely, these embodiments are provided so that the disclosure of this specification becomes complete and to fully inform those with ordinary knowledge in the technical field to which this specification pertains of the scope of this specification.

[0017] The shapes, areas, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of this specification are exemplary, so this specification is not limited to the matters illustrated. Throughout the specification, the same reference numerals refer to the same components. Also, when explaining this specification, if it is determined that a detailed description of related known technologies may muddy the gist of this specification, the detailed description thereof will be omitted. When terms such as "including", "having", "being made" are used in this specification, unless "only" is used, other parts can be added. When a component is expressed in the singular, it includes the case of including a plurality unless there is a specific description to the contrary.

[0018] When interpreting components, even without a separate explicit description, they are interpreted as including an error range.

[0019] When it comes to the description of the positional relationship, for example, when the positional relationship between two parts is described such as "on ~", "above ~", "below ~", "next to ~", etc., as long as "immediately" or "directly" is not used, one or more other parts may be located between the two parts.

[0020] What is referred to as "on" an element or layer by another element or layer includes both the case where there is another layer or another element immediately above or in the middle of the other element.

[0021] Also, the first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are simply used to distinguish one component from another.

[0022] Throughout the specification, the same reference numerals refer to the same components.

[0023] The area and thickness of each configuration shown in the drawings are shown for the convenience of explanation, and this specification is not necessarily limited to the area and thickness of the shown configuration.

[0024] The respective features of the various embodiments of this specification can be partially or wholly combined or combined with each other, enabling various technical linkages and drives, and each embodiment may be implemented independently of each other or may be implemented together in a related relationship.

[0025] In the following, the present invention will be described with reference to the drawings.

[0026] FIG. 1 is a perspective view seen from the front of a display device according to an embodiment of the present invention. FIG. 2 is a front view showing a partial configuration of a display device according to an embodiment of the present invention. All the components of each display device according to all embodiments of the present invention are operably coupled and configured.

[0027] Referring to Figures 1 and 2, a display device 1000 according to one embodiment of the present invention includes a display module 100, a bending module 200, and a stand 300. The bending module 200 and the stand 300 may be located on the back of the display module 100.

[0028] The display device 1000 can be switched or converted between a basic mode and a bending mode. The basic mode is a mode in which the bending module 200 does not apply force to the display module 100 and the display module 100 maintains its basic shape. That is, in the basic mode, the display module 100 may be flat. If the display module 100 is flat, the display module 100 is maintained in a flat state in the basic mode. However, the present invention is not limited thereto. In other embodiments, the display module 100 may be bent in the basic mode. If the display module 100 is curved, the display module 100 may be maintained in a bent state at a predetermined basic curvature in the basic mode. The bending mode is a mode in which the display module 100 is bent by the bending module 200 at a predetermined curvature.

[0029] In bending mode, in addition to the two sides DS1 and DS2 of the display module 100, the four corners DC1, DC2, DC3, and DC4 can also be bent. While conventional bendable display devices are only capable of bending the sides, the present invention allows bending of the corners of the display module 100, enabling the realization of a wider variety of screen curvatures and providing users with an even greater sense of immersion and a more diverse viewing experience.

[0030] The display module 100 includes a display panel 110 for displaying images. The display panel 110 may be one of the following: a plasma display panel, a liquid crystal display, an organic light-emitting diode display, or a light-emitting diode display. For example, if the display panel 110 is a liquid crystal display, the display module 100 may include a backlight unit and a display cover, etc.

[0031] The display panel 110 may consist of a curved display or a flexible display, rather than a flat display. Furthermore, the display panel 110 may be implemented as a touch-sensitive display.

[0032] The display module 100 includes two sides DS1 and DS2 and four corners DC1, DC2, DC3, and DC4. Referring to Figures 1 and 2, the first side DS1 and the second side DS2 may indicate the left and right ends of the display module 100. The first corner DC1 may indicate the upper left end of the display module 100, the second corner DC2 may indicate the upper right end of the display module 100, the third corner DC3 may indicate the lower left end of the display module 100, and the fourth corner DC4 may indicate the lower right end of the display module 100.

[0033] The bending module 200 is positioned on the back of the display module 100 and plays the role of bending the display module 100. Specifically, the bending module 200 can bend the display module 100 by applying force to both sides DS1, DS2 and the four corners DC1, DC2, DC3, DC4. Furthermore, the bending module 200 can restore the display module 100 to its original state, for example, the basic mode, by releasing the force applied to the display module 100.

[0034] The bending module 200 can cause the display device 1000 to switch between basic mode and bending mode. If the display module 100 is flat, it can be bent to a preset curvature in bending mode and restored to a flat shape in basic mode. If the display module 100 is curved, it can be bent to a flat shape in bending mode.

[0035] The bending module 200 is configured to bend both sides DS1, DS2 and the four corners DC1, DC2, DC3, DC4 of the display module 100. However, the present invention is not limited thereto. In other embodiments, the bending module 200 may be configured to bend either side of the display module 100.

[0036] Figure 3 is a perspective view of a portion of the configuration of a display device according to one embodiment of the present invention, viewed from the rear. Figure 4 is a rear view showing a portion of the configuration of a display device according to one embodiment of the present invention. Figure 5 is an exploded perspective view showing the bending module of a display device according to one embodiment of the present invention. Figure 6 is an exploded perspective view showing a portion of the configuration of the bending module of a display device according to one embodiment of the present invention.

[0037] Referring to Figures 3 to 6, the bending module 200 includes a plurality of bending arms arranged radially on the back of the display module 100. The plurality of bending arms include a pair of side arms 201, 205 and four corner arms 231, 232, 233, 234. The pair of side arms 201, 205 can move in conjunction with a pinion 220, and the four corner arms 231, 232, 233, 234 can move in conjunction with a cam wheel 250. The pinion 220 and cam wheel 250 may be located between the pair of side arms 201, 205 and in the central part between the four corner arms 231, 232, 233, 234. The pinion 220 and cam wheel 250 can also rotate by receiving rotational force from a drive unit 260.

[0038] A pair of side arms 201, 205 includes a first side arm 201 connected to a first side DS1 of the display module 100 and a second side arm 205 connected to a second side DS2 of the display module 100. These side arms 201, 205 are positioned closer to the display module 100 than the corner arms 231, 232, 233, 234. However, the present invention is not limited thereto. In other embodiments, the corner arms 231, 232, 233, 234 may be positioned closer to the display module 100 than the pair of side arms 201, 205.

[0039] The first side arm 201 is positioned to move linearly on the back of the display module 100. When the display module 100 is bent, the first side arm 201 can be bent to conform to the curvature of the first side DS1. One end of the first side arm 201 is fixed to the first side DS1 of the display module 100, and the other end of the first side arm 201 meshes with a pinion 220 located in the center of the display module 100. Thus, the rotation of the pinion 220 causes the first side arm 201 to move linearly, and this linear motion of the first side arm 201 can lead to the bending of the first side DS1.

[0040] The first side arm 201 includes a first arm plate 202 and a first rack 203.

[0041] The first end of the first arm plate 202 is fixed to the first side DS1 of the display module 100, and the second end of the first arm plate 202 is located adjacent to the pinion 220. One end of the first arm plate 202 may be fixed to the display module 100 by a bracket 210-1. The bracket 210-1 may be located at the first end of the first arm plate 202.

[0042] The first arm plate 202 includes a plurality of first side arm grooves 202a. The plurality of first side arm grooves 202a are spaced apart along the longitudinal direction of the first arm plate 202. The first side arm grooves 202a are shaped to extend parallel to the direction of movement of the first side arm 201. A plurality of side arm guides 212-1, which are located on the back of the display module 100, are inserted into each of the plurality of first side arm grooves 202a.

[0043] The side arm guide 212-1 guides the first side arm 201 to move linearly. The side arm guide 212-1 is in the form of a pin that is inserted into the first side arm groove 202a. When the first side arm 201 receives a moving force from the pinion 220, the first arm plate 202 is guided by the multiple side arm guides 212-1 and can move linearly and stably. Thus, the first side DS1 can be smoothly bent without the first side arm 201 twisting or bending unevenly.

[0044] The first rack 203 is positioned at the second end of the first arm plate 202. The gear of the first rack 203 meshes with the gear of the pinion 220. The first rack 203, by meshing with the pinion 220, converts rotational motion into linear motion, thereby causing the first arm plate 202 to move linearly.

[0045] The first rack 203 includes a first slit 203a. The first slit 203a is shaped to extend parallel to the direction of movement of the first side arm 201. A rack guide 214-1, which is positioned on the back of the display module 100, is inserted into the first slit 203a.

[0046] The rack guide 214-1 guides the first rack 203 to move linearly. The rack guide 214-1 is in the form of a pin that is inserted into the first slit 203a. When the first side arm 201 receives a moving force from the pinion 220, the first rack 203 can move linearly and stably, guided by the rack guide 214-1. Thus, the first rack 203 can maintain a stably meshed state with the pinion 220.

[0047] The specific configuration of the first side arm 201 is not limited to that shown in the illustration. For example, gears constituting a rack may be integrally arranged at the second end of the first arm plate 202. Furthermore, the first end of the first side arm 201 may be fixed to the display module 100 in a manner other than that using the bracket 210-1 shown in the illustration. For example, the display module 100 may be fixed to the first side arm 201 through fasteners or other coupling means.

[0048] Furthermore, the guide structure of the first side arm 201 can be modified in various ways. For example, the side arm guide 212-1 and rack guide 214-1 that guide the first side arm 201 can be changed to grooves, rails, or other forms that guide the first side arm 201, and the first side arm 201 can be deformed accordingly.

[0049] The second side arm 205 is positioned to move linearly on the back of the display module 100. The second side arm 205 can be bent to match the curvature of the second side DS2 when the display module 100 is bent. The first end of the second side arm 205 is fixed to the second side DS2 of the display module 100, and the second end of the second side arm 205 meshes with a pinion 220 located in the center of the display module 100. Thus, the rotation of the pinion 220 causes the second side arm 205 to move linearly, and this linear motion of the second side arm 205 can lead to the bending of the second side DS2.

[0050] The second side arm 205 includes a second arm plate 206 and a second rack 208. The second rack 208 may be located above the first rack 203.

[0051] The first end of the second arm plate 206 is fixed to the second side DS2 of the display module 100, and the second end of the second arm plate 206 is positioned to face the other end of the first arm plate 202 across the pinion 220. One end of the second arm plate 206 can be fixed to the display module 100 by a bracket 210-2. The bracket 210-2 may be located at the first end of the second arm plate 206.

[0052] The second arm plate 206 includes a plurality of second side arm grooves 206a. The plurality of second side arm grooves 206a are spaced apart along the longitudinal direction of the second arm plate 206. The second side arm grooves 206a are shaped to extend parallel to the direction of movement of the second side arm 205. A plurality of side arm guides 212-2, which are located on the back of the display module 100, are inserted into each of the plurality of second side arm grooves 206a.

[0053] The side arm guide 212-2 guides the second side arm 205 to move linearly. The side arm guide 212-2 is in the form of a pin that is inserted into the second side arm groove 206a. When the second side arm 205 receives a moving force from the pinion 220, the second arm plate 206 is guided by the multiple side arm guides 212-2 and can move linearly and stably. Thus, the second side DS2 can be smoothly bent without the second side arm 205 twisting or bending unevenly.

[0054] The second rack 208 is positioned at the second end of the second arm plate 206. The second rack 208 is positioned opposite the first rack 203, with the pinion 220 in between. The gears of the second rack 208 mesh with the gears of the pinion 220. The second rack 208 meshes with the pinion 220 and converts rotational motion into linear motion, thereby causing the second arm plate 206 to move linearly.

[0055] The second rack 208 includes a second slit 208a. The second slit 208a may overlap with the first slit 203a. The second slit 208a is shaped to extend parallel to the direction of movement of the second side arm 205. A rack guide 214-2, which is located on the back of the display module 100, is inserted into the second slit 208a.

[0056] The rack guide 214-2 guides the second rack 208 to move linearly. The rack guide 214-2 is in the form of a pin that is inserted into the second slit 208a. When the second side arm 205 receives a moving force from the pinion 220, the second rack 208 can move linearly and stably, guided by the rack guide 214-2. Thus, the second rack 208 can maintain a stably meshed state with the pinion 220.

[0057] The specific configuration of the second side arm 205 is not limited to that shown in the illustration. For example, gears constituting a rack may be integrally arranged at the second end of the second arm plate 206. Also, the first end of the second side arm 205 may be fixed to the display module 100 in a manner other than that using the bracket 210-2 shown in the illustration. For example, the display module 100 may be fixed to the second side arm 205 through fasteners or other coupling means.

[0058] Furthermore, the guide structure of the second side arm 205 can be modified in various ways. For example, the side arm guides 212-2 and rack guides 214-2 that guide the second side arm 205 can be changed to grooves, rails, or other forms that guide the second side arm 205, and the second side arm 205 can be modified accordingly.

[0059] Furthermore, the number and arrangement of the side arms 201 and 205 for performing the side bending operation on the display module 100 can be varied in many ways. For example, the first side arm 201 may be fixed at a position where one end is adjacent to the first side DS1 of the display module 100. The second side arm 205 may be fixed at a position where one end is adjacent to the second side DS2 of the display module 100.

[0060] The pinion 220 meshes with the first rack 203 of the first side arm 201 and the second rack 208 of the second side arm 205, transmitting the driving force for side bending to the first side arm 201 and the second side arm 205. Therefore, when the pinion 220 rotates, the first side arm 201 and the second side arm 205 move linearly simultaneously to perform a side bending operation relative to the display module 100. Thus, the first side DS1 and the second side DS2 can be bent through the rotation of the pinion 220.

[0061] The pinion 220 is positioned in the center of the display module 100 so as to share a rotation center RC with the cam wheel 250. The rotation center axis of the pinion 220 is perpendicular to the back of the display module 100. The pinion 220 is positioned to work in conjunction with the cam wheel 250. That is, the rotational force of the drive unit 260 is transmitted to the pinion 220 through the cam wheel 250.

[0062] Furthermore, the pinion 220 is positioned on one surface of the cam wheel 250. This surface of the cam wheel 250 faces the inner surface of the cam wheel 250, which faces the back of the display module 100. The pinion 220 may be integrated with the cam wheel 250, but is not limited to this configuration. For example, the pinion 220 may be directly coupled to the cam wheel 250 so as to rotate with it, or it may be connected to the cam wheel 250 through a coupling member so as to interlock with the cam wheel 250.

[0063] Next, the four corner arms 231, 232, 233, and 234 are positioned so as to extend from the center of the display module 100 toward the four corners DC1, DC2, DC3, and DC4 of the display module 100. The four corner arms 231, 232, 233, and 234 include a first corner arm 231 connected to the first corner DC1 of the display module 100, a second corner arm 232 connected to the second corner DC2 of the display module 100, a third corner arm 233 connected to the third corner DC3 of the display module 100, and a fourth corner arm 234 connected to the fourth corner DC4 of the display module 100. The first corner DC1 and the second corner DC2 may be the upper corners of the display module 100, and the third corner DC3 and the fourth corner DC4 may be the lower corners (corners) of the display module 100.

[0064] The first corner arm 231 plays a role in bending the first corner DC1 of the display module 100. The first corner arm 231 is positioned to move linearly on the back of the display module 100. When bending the display module 100, the first corner arm 231 can be bent to match the curvature of the first corner DC1. The first end of the first corner arm 231 is fixed to the first corner DC1 of the display module 100, and the second end of the first corner arm 231 is connected to a cam wheel 250 located in the center of the display module 100. The first end of the first corner arm 231 can be fixed to the display module 100 by a bracket 235-1. Thus, the rotation of the cam wheel 250 causes the first corner arm 231 to move linearly, and this linear movement of the first corner arm 231 can lead to the bending of the first corner DC1.

[0065] The first corner arm 231 includes a plurality of first corner arm grooves 231a. The plurality of first corner arm grooves 231a are spaced apart along the longitudinal direction of the first corner arm 231. The first corner arm grooves 231a are shaped to extend parallel to the direction of movement of the first corner arm 231. A plurality of corner arm guides 237-1, which are located on the back of the display module 100, are inserted into each of the plurality of first corner arm grooves 231a.

[0066] The corner arm guide 237-1 guides the first corner arm 231 to move linearly. The corner arm guide 237-1 is in the form of a pin that is inserted into the first corner arm groove 231a. When the first corner arm 231 receives a moving force from the cam wheel 250, the first corner arm 231 is guided by the multiple corner arm guides 237-1 and can move linearly and stably. Thus, the first corner DC1 can be smoothly bent without the first corner arm 231 twisting or bending unevenly.

[0067] A first cam follower 241 is positioned at the second end of the first corner arm 231. The first cam follower 241 is configured to move along the first cam rail 251 of the cam wheel 250. The first cam follower 241 is also configured to minimize or reduce friction with the cam wheel 250. For example, the first cam follower 241 may be in the form of a cylinder or roller inserted into the first cam rail 251.

[0068] The first cam follower 241 is connected to the cam wheel 250 so as to move along the first cam rail 251 of the cam wheel 250, converting the rotational motion of the cam wheel 250 into linear motion of the first corner arm 231. Thus, when the cam wheel 250 rotates, the first corner arm 231 can move linearly to bend the first corner DC1.

[0069] The specific configuration of the first corner arm 231 is not limited to that shown in the illustration. For example, one end of the first corner arm 231 may be fixed to the display module 100 in a manner other than that using the bracket 235-1 shown in the illustration.

[0070] Furthermore, the guide structure of the first corner arm 231 can be modified in various ways. For example, the corner arm guide 237-1 that guides the first corner arm 231 can be changed to a groove, a rail, or another form that guides the first corner arm 231, and the first corner arm 231 can be deformed accordingly.

[0071] Furthermore, the first cam follower 241 can be varied in many ways depending on the configuration of the first cam rail 251 provided on the cam wheel 250.

[0072] The second corner arm 232 plays a role in bending the second corner DC2 of the display module 100. The second corner arm 232 is positioned to move linearly on the back of the display module 100. When bending the display module 100, the second corner arm 232 can be bent to match the curvature of the second corner DC2. The first end of the second corner arm 232 is fixed to the second corner DC2 of the display module 100, and the second end of the second corner arm 232 is connected to the cam wheel 250. The first end of the second corner arm 232 can be fixed to the display module 100 by a bracket 235-2. Thus, the rotation of the cam wheel 250 causes the second corner arm 232 to move linearly, and the linear motion of the second corner arm 232 can lead to the bending of the second corner DC2.

[0073] The second corner arm 232 includes a plurality of second corner arm grooves 232a. The plurality of second corner arm grooves 232a are spaced apart along the longitudinal direction of the second corner arm 232. The second corner arm grooves 232a are shaped to extend parallel to the direction of movement of the second corner arm 232. A plurality of corner arm guides 237-2, which are located on the back of the display module 100, are inserted into each of the plurality of second corner arm grooves 232a.

[0074] The corner arm guide 237-2 guides the second corner arm 232 to move linearly. The corner arm guide 237-2 is in the form of a pin that is inserted into the second corner arm groove 232a. When the second corner arm 232 receives a moving force from the cam wheel 250, the second corner arm 232 is guided by the multiple corner arm guides 237-2 and can move linearly and stably. Thus, the second corner DC2 of the display module 100 can be smoothly bent without the second corner arm 232 twisting or bending unevenly.

[0075] A second cam follower 242 is positioned at the second end of the second corner arm 232. The second cam follower 242 is configured to move along the second cam rail 252 of the cam wheel 250. The second cam follower 242 is also configured to minimize or reduce friction with the cam wheel 250. For example, the second cam follower 242 may be in the form of a cylinder or roller inserted into the second cam rail 252.

[0076] The second cam follower 242 is connected to the cam wheel 250 so as to move along the second cam rail 252 of the cam wheel 250, converting the rotational motion of the cam wheel 250 into the linear motion of the second corner arm 232. Thus, when the cam wheel 250 rotates, the second corner arm 232 moves linearly, causing the second corner DC2 of the display module 100 to bend.

[0077] The specific configuration of the second corner arm 232 is not limited to that shown in the illustration. For example, one end of the second corner arm 232 may be fixed to the display module 100 in a manner other than that using the bracket 235-2 shown in the illustration.

[0078] Furthermore, the guide structure of the second corner arm 232 can be modified in various ways. For example, the corner arm guide 237-2 that guides the second corner arm 232 can be changed to a groove, a rail, or another form that guides the second corner arm 232, and the second corner arm 232 can be deformed accordingly.

[0079] Furthermore, the second cam follower 242 can be varied in many ways depending on the configuration of the second cam rail 252 included in the cam wheel 250.

[0080] The third corner arm 233 plays a role in bending the third corner DC3 of the display module 100. The third corner arm 233 is positioned to move linearly on the back of the display module 100. When bending the display module 100, the third corner arm 233 can be bent to match the curvature of the third corner DC3. The first end of the third corner arm 233 is fixed to the third corner DC3 of the display module 100, and the second end of the third corner arm 233 is connected to the cam wheel 250. The first end of the third corner arm 233 can be fixed to the display module 100 by a bracket 235-3. Thus, the rotation of the cam wheel 250 causes the third corner arm 233 to move linearly, and the linear motion of the third corner arm 233 can lead to the bending of the third corner DC3.

[0081] The third corner arm 233 includes a plurality of third corner arm grooves 233a. The plurality of third corner arm grooves 233a are spaced apart along the longitudinal direction of the third corner arm 233. The third corner arm grooves 233a are shaped to extend parallel to the direction of movement of the third corner arm 233. A plurality of corner arm guides 237-3, which are located on the back of the display module 100, are inserted into each of the plurality of third corner arm grooves 233a.

[0082] The corner arm guide 237-3 guides the third corner arm 233 to move linearly. The corner arm guide 237-3 is in the form of a pin that is inserted into the third corner arm groove 233a. When the third corner arm 233 receives a moving force from the cam wheel 250, the third corner arm 233 can move linearly and stably guided by the multiple corner arm guides 237-3. Thus, the third corner DC3 can be smoothly bent without the third corner arm 233 twisting or bending unevenly.

[0083] A third cam follower 243 is positioned at the second end of the third corner arm 233. The third cam follower 243 is configured to move along the third cam rail 253 of the cam wheel 250. The third cam follower 243 is also configured to minimize or reduce friction with the cam wheel 250. For example, the third cam follower 243 may be in the form of a cylinder or roller inserted into the third cam rail 253.

[0084] The third cam follower 243 is connected to the cam wheel 250 so as to move along the third cam rail 253 of the cam wheel 250, converting the rotational motion of the cam wheel 250 into the linear motion of the third corner arm 233. Thus, as the cam wheel 250 rotates, the third corner arm 233 can move linearly to bend the third corner DC3.

[0085] The specific configuration of the third corner arm 233 is not limited to that shown in the illustration. For example, one end of the third corner arm 233 may be fixed to the display module 100 in a manner other than that using the bracket 235-3 shown in the illustration.

[0086] Furthermore, the guide structure of the third corner arm 233 can be modified in various ways. For example, the corner arm guide 237-3 that guides the third corner arm 233 can be changed to a groove, a rail, or another form that guides the third corner arm 233, and the third corner arm 233 can be deformed accordingly.

[0087] Furthermore, the third cam follower 243 can be varied in many ways depending on the configuration of the third cam rail 253 included in the cam wheel 250.

[0088] The fourth corner arm 234 plays a role in bending the fourth corner DC4 of the display module 100. The fourth corner arm 234 is positioned to move linearly on the back of the display module 100. When bending the display module 100, the fourth corner arm 234 can be bent to match the curvature of the fourth corner DC4. The first end of the fourth corner arm 234 is fixed to the fourth corner DC4 of the display module 100, and the second end of the fourth corner arm 234 is connected to the cam wheel 250. The first end of the fourth corner arm 234 can be fixed to the display module 100 by a bracket 235-4. Thus, the rotation of the cam wheel 250 causes the fourth corner arm 234 to move linearly, and the linear motion of the fourth corner arm 234 can lead to the bending of the fourth corner DC4.

[0089] The fourth corner arm 234 includes a plurality of fourth corner arm grooves 234a. The plurality of fourth corner arm grooves 234a are spaced apart along the longitudinal direction of the fourth corner arm 234. The fourth corner arm grooves 234a are shaped to extend parallel to the direction of movement of the fourth corner arm 234. A plurality of corner arm guides 237-4, which are located on the back of the display module 100, are inserted into each of the plurality of fourth corner arm grooves 234a.

[0090] The corner arm guide 237-4 guides the fourth corner arm 234 to move linearly. The corner arm guide 237-4 is in the form of a pin that is inserted into the fourth corner arm groove 234a. When the fourth corner arm 234 receives a moving force from the cam wheel 250, the fourth corner arm 234 can move linearly and stably guided by the multiple corner arm guides 237-4. Thus, the fourth corner DC4 can be smoothly bent without the fourth corner arm 234 twisting or bending unevenly.

[0091] A fourth cam follower 244 is positioned at the second end of the fourth corner arm 234. The fourth cam follower 244 is configured to move along the fourth cam rail 254 of the cam wheel 250. The fourth cam follower 244 is also configured to minimize or reduce friction with the cam wheel 250. For example, the fourth cam follower 244 may be in the form of a cylinder or roller inserted into the fourth cam rail 254.

[0092] The fourth cam follower 244 is connected to the cam wheel 250 so as to move along the fourth cam rail 254 of the cam wheel 250, converting the rotational motion of the cam wheel 250 into the linear motion of the fourth corner arm 234. Thus, as the cam wheel 250 rotates, the fourth corner arm 234 can move linearly to bend the fourth corner DC4.

[0093] The specific configuration of the fourth corner arm 234 is not limited to that shown in the illustration. For example, one end of the fourth corner arm 234 may be fixed to the display module 100 in a manner other than that using the bracket 235-4 shown in the illustration.

[0094] Furthermore, the guide structure of the fourth corner arm 234 can be modified in various ways. For example, the corner arm guide 237-4 that guides the fourth corner arm 234 can be changed to a groove, a rail, or another form that guides the fourth corner arm 234, and the fourth corner arm 234 can be deformed accordingly.

[0095] Furthermore, the fourth cam follower 244 can be varied in many ways depending on the configuration of the fourth cam rail 254 included in the cam wheel 250.

[0096] Furthermore, the number and arrangement of the corner arms 231, 232, 233, and 234 for performing corner bending operations on the display module 100 can be varied in many ways. For example, one end of each of the four corner arms 231, 232, 233, and 234 can be fixed to adjacent positions of the four corners DC1, DC2, DC3, and DC4 of the display module 100. In other embodiments, the four corner arms 231, 232, 233, and 234 can be connected to the other end of the display module 100.

[0097] The cam wheel 250 is connected to four cam followers 241, 242, 243, and 244 to transmit driving force for corner bending to four corner arms 231, 232, 233, and 234. The cam wheel 250 shares a rotation center RC with the pinion 220, and the rotation axis of the cam wheel 250 is perpendicular to the back of the display module 100. As the cam wheel 250 rotates, the first corner arm 231, the second corner arm 232, the third corner arm 233, and the fourth corner arm 234 move linearly simultaneously to perform a corner bending action on the display module 100, thereby bending or widening the corners of the display module 100. The cam wheel 250 is positioned in the center of the back of the display module 100 so that it can apply force uniformly to the four corner arms 231, 232, 233, and 234.

[0098] The cam wheel 250 includes four cam rails 251, 252, 253, 254 and a recess 256. The four cam rails 251, 252, 253, 254 are located on the other side of the cam wheel 250. The four cam rails 251, 252, 253, 254 include a first cam rail 251 to which a first cam follower 241 is connected, a second cam rail 252 to which a second cam follower 242 is connected, a third cam rail 253 to which a third cam follower 243 is connected, and a fourth cam rail 254 to which a fourth cam follower 244 is connected.

[0099] The four cam rails 251, 252, 253, and 254 can each be formed into grooves into which the four cam followers 241, 242, 243, and 244 are inserted. Alternatively, the four cam rails 251, 252, 253, and 254 can each be formed into an arch shape, with one end of each located on a virtual first concentric circle C1 centered on the rotation center RC of the cam wheel 250, and the other end of each located on a virtual second concentric circle C2 that is larger than the first concentric circle C1, also centered on the rotation center RC of the cam wheel 250. In other words, the four cam rails 251, 252, 253, and 254 can each be formed into a curved shape.

[0100] Therefore, as the cam wheel 250 rotates, the four cam followers 241, 242, 243, and 244 move along the four cam rails 251, 252, 253, and 254, respectively, causing the four corner arms 231, 232, 233, and 234 to move linearly with a stroke S equal to the difference in diameter between the first concentric circle C1 and the second concentric circle C2.

[0101] The recess 256 is located on one surface of the cam wheel 250. A portion of the drive unit 260 is inserted into the recess 256. The insertion of a portion of the drive unit 260 into the recess 256 reduces the overall thickness of the bending module 200. The recess 256 may be located on the edge of the cam wheel 250.

[0102] The cam wheel 250 is positioned to cover the pinion 220, the first rack 203, and the second rack 208. That is, the pinion 220, the first rack 203, and the second rack 208 are positioned closer to the display module 100 than the cam wheel 250. In this way, the cam wheel 250 and the pinion 220 share a center of rotation RC but are positioned on different planes from each other, so that interference between the side arms 201, 205 and the corner arms 231, 232, 233, 234 can be prevented or reduced.

[0103] The specific configuration of the cam wheel 250 is not limited to that shown in the illustration. For example, the cam wheel 250 may include cam rails of other configurations besides groove configuration. The configuration of the cam followers 241, 242, 243, and 244 may also be changed depending on the configuration of the cam rails.

[0104] Furthermore, although the drawing shows the cam wheel 250 positioned further from the display module 100 than the pinion 220, the cam wheel 250 can be repositioned to be closer to the back of the display module 100 than the pinion 220. In this case, the cam rails 251, 252, 253, and 254 can be positioned on the inner surface of the cam wheel 250 facing the back of the display module 100. And when the positions of the cam wheel 250 and the pinion 220 are changed, the positions of the side arms 201, 205 and the corner arms 231, 232, 233, and 234 can also be changed.

[0105] Furthermore, the cam wheel 250 may include additional cam rails for linear motion of the side arms 201, 205. In this case, the pinion 220 and racks 203, 208 may be omitted, and additional cam followers that can move along the additional cam rails may be placed on the side arms 201, 205. The additional cam rails may be located on the inner surface of the cam wheel 250. Thus, the cam wheel 250 may include the same number of cam rails as the number of arms used to operate the display module 100.

[0106] Furthermore, the cam wheel 250 may be connected to connecting elements such as cams and links, which are used to linearly move the side arms 201 and 205. In this case, the pinion 220 and racks 203 and 208 may be omitted, and the side arms 201 and 205 may be configured to be connected to connecting elements such as cams and links.

[0107] The cam wheel 250 rotates by receiving rotational force from the drive unit 260.

[0108] Figure 5 is an exploded perspective view showing the bending module of a display device according to one embodiment of the present invention. Figure 6 is an exploded perspective view showing a part of the configuration of the bending module of a display device according to one embodiment of the present invention. Figure 7 is an exploded perspective view showing the drive unit of a display device according to one embodiment of the present invention.

[0109] Referring to Figures 5 to 7, the drive unit 260 includes a drive source 261 that generates rotational force, and a power transmission unit 262 that transmits the rotational force of the drive source 261 to the cam wheel 250. Since the cam wheel 250 and the pinion 220 are coupled, the rotational force transmitted to the cam wheel 250 through the power transmission unit 262 can be supplied to the pinion 220. The drive unit 260 can rotate the cam wheel 250 and the pinion 220 to simultaneously achieve corner bending and side bending.

[0110] The drive source 261 is a device that generates rotational force for the mechanical operation of the bending module 200. The drive source 261 may be located below the cam wheel 250. Various types of power generating devices, such as motors, can be used as the drive source 261. Although not shown in the drawings, the drive source 261 may be further connected to a torque limiter for overload prevention or reduction, an encoder for position feedback, a clutch for improved safety, etc. Such additional devices assist in the stable operation of the bending module 200.

[0111] A suitable drive source 261 can be selected based on the characteristics and requirements of the bending module 200, and if necessary, various types of power generators can be used in combination. Furthermore, the drive source 261 can be configured with a variety of sensors and feedback devices for precise control.

[0112] The power transmission unit 262 plays the role of efficiently transmitting the rotational force of the drive source 261 to the cam wheel 250. The power transmission unit 262 is configured to enable precise power transmission through sequentially connected gears. The power transmission unit 262 includes a drive gear 263 connected to the drive source 261, a driven gear 264 meshing with the drive gear 263, a worm gear 265 connected to the driven gear 264, a wheel gear 266 meshing with the worm gear 265, and a rotating member 267 coupled to the wheel gear 266. The maximum length of the driven gear 264 may be longer than the maximum length of the drive gear 263. In addition, the driven gear 264 may be superimposed on the worm gear 265 in the horizontal direction.

[0113] The drive gear 263 is directly connected to the rotating shaft of the drive source 261 and receives rotational force transmission. The teeth of the drive gear 263 mesh with the teeth of the driven gear 264. The drive gear 263 may be located below the driven gear 264.

[0114] The driven gear 264 receives rotational force from the drive gear 263 and transmits it to the worm gear 265. The driven gear 264 can adjust rotational speed and torque through the gear ratio with the drive gear 263.

[0115] The worm gear 265 is positioned parallel to the central portion of the display module 100. The rotational axis of the worm gear 265 is perpendicular to the rotational axis of the cam wheel 250. This orthogonal arrangement has the effect of reducing the thickness of the bending module 200. In other words, the arrangement of the worm gear 265 reduces the overall thickness of the bending module 200, and as a result, the display device 1000 can be made even thinner and slimmer.

[0116] The meshing structure of the worm gear 265 and the wheel gear 266 allows for a large reduction ratio. Through this, the high-speed rotation of the drive source 261 can be converted into the precise low-speed rotation of the cam wheel 250. In addition, due to the characteristics of the worm gear 265 structure, reverse drive can be prevented or reduced, and the bending state of the display module 100 can be stably maintained.

[0117] A gear that meshes with the worm gear 265 is formed on the outer surface of the wheel gear 266. When the worm gear 265 rotates, the wheel gear 266 rotates through the meshing of this gear, and this rotational force is directly transmitted to the cam wheel 250, causing the cam wheel 250 to rotate.

[0118] A portion of the wheel gear 266 is inserted into a recess 256 of the cam wheel 250, while the remaining portion protrudes from the outer surface of the cam wheel 250 and meshes with the worm gear 265. This partial insertion structure has the effect of reducing the overall thickness of the bending module 200. Furthermore, because the wheel gear 266 is directly coupled to the cam wheel 250, and the cam wheel 250 and wheel gear 266 share a center of rotation RC, the cam wheel 250 and wheel gear 266 can rotate together without any further coupling elements. Such a coupling structure has the effect of reducing the number of parts, simplifying the structure, improving ease of assembly, and saving manufacturing costs.

[0119] The rotating member 267 is a component that rotates in conjunction with the wheel gear 266 and shares the same center of rotation RC as the cam wheel 250. The rotating member 267 may be configured in a plate form. However, the present invention is not limited thereto.

[0120] The rotating member 267 includes a pair of through holes 267a and 267b. The through holes 267a and 267b are configured for the insertion of rack guides 214-1 and 214-2. By inserting the rack guides 214-1 and 214-2 into the through holes 267a and 267b of the rotating member 267, interference between the rotating member 267 and the rack guides 214-1 and 214-2 is prevented, and the width of the bending module 200 can be reduced.

[0121] Furthermore, by providing through holes 267a and 267b in the rotating member 267 into which the rack guides 214-1 and 214-2 are inserted, the rack guides 214-1 and 214-2 can be positioned as close as possible to the rotation center RC of the pinion 220. This arrangement promotes stable meshing between the side arms 201 and 205 and the pinion 220, enabling stable power transmission to the side arms 201 and 205.

[0122] The rotating member 267 is rotatably supported by a rotary joint 270 located in the center of the display module 100.

[0123] The rotary joint 270 allows the rotating member 267 to rotate smoothly and prevents or reduces axial wobble. The rotary joint 270 includes a rotating shaft 271. The pinion 220, cam wheel 250, wheel gear 266, and rotating member 267 can rotate around the rotating shaft 271.

[0124] The rotary joint 270 rotatably supports the rotating member 267, a wheel gear 266 is coupled to the rotating member 267, the wheel gear 266 is coupled to the cam wheel 250, and a pinion 220 is positioned on the cam wheel 250. As a result, the rotating member 267, the wheel gear 266, the cam wheel 250, and the pinion 220 can share a center of rotation RC located on the rotary joint 270.

[0125] The rotary joint 270 may include other components, such as bearings, for rotatably supporting the rotating member 267.

[0126] The rotary joint 270 is connected to the mounting plate 280.

[0127] The mounting plate 280 is fixed to the back of the display module 100. The drive unit 260 is provided on the mounting plate 280 to transmit stable driving force.

[0128] Furthermore, the mounting plate 280 can be coupled to a stand 300 (see Figure 1). The stand 300 is coupled to the display module 100 through the mounting plate 280. The stand 300 can be placed on a desk or table to stably support the display module 100. The mounting plate 280 may be located in the central part of the display module 100.

[0129] Although the drawing shows that the rack guides 214-1, 214-2, drive source 261, worm gear 265, and rotary joint 270 are arranged on the mounting plate 280, depending on the design conditions, these components may be configured to be directly coupled to the back of the display module 100.

[0130] The drive unit 260 can be controlled by a controller to rotate the cam wheel 250 and pinion 220 clockwise or counterclockwise by a preset angle. By rotating the cam wheel 250 and pinion 220, the display module 100 can be bent or restored to its original shape. Furthermore, by adjusting the rotation angle of the cam wheel 250 and pinion 220, the curvature of the display module 100 can be varied in various ways.

[0131] Furthermore, the drive unit 260 can restrain the rotation of the cam wheel 250 and pinion 220 when it is not in operation. When the drive unit 260 rotates the cam wheel 250 and pinion 220 by a preset angle, causing the display module 100 to be bent, the display module 100 will have a force that tries to restore it to its original shape. As a result, the cam wheel 250 and pinion 220 will receive torque in the opposite direction. At this time, the drive unit 260 can maintain the display module 100 in the bent state by restraining the rotation of the cam wheel 250 and pinion 220.

[0132] The specific configuration of the drive unit 260 is not limited to that shown in the figures. For example, the power transmission unit 262 may be modified to include other gear coupling structures, link coupling structures, etc., that can transmit the rotational force of the drive source 261 to the cam wheel 250, without including the worm gear 265 and wheel gear 266. Also, gears constituting the wheel gear may be integrally arranged on the outer circumferential surface of the rotating member 267.

[0133] Furthermore, the drive unit 260 may be configured to transmit rotational force directly to the pinion 220. In this case, the cam wheel 250 may be connected to the pinion 220 so that it receives rotational force through the pinion 220.

[0134] Furthermore, the drive unit 260 may be configured to transmit rotational force independently to the pinion 220 and the cam wheel 250, respectively.

[0135] If necessary, the drive unit 260 may be omitted. If the drive unit 260 is omitted, the cam wheel 250 may be configured to be rotated manually by the user. For this purpose, the cam wheel 250 may be equipped with components for user operation, such as levers or handles. Also, if the drive unit 260 is omitted, a locking device or stopper may be provided to prevent or reduce the rotation of the cam wheel 250 and pinion 220 due to the restoring force of the display module 100.

[0136] As described above, the display device 1000 according to one embodiment of the present invention is capable of switching or converting between a basic mode and a bending mode. Such switching or conversion of modes can be performed by the bending module 200.

[0137] The mode switching operation of the display device 1000 according to one embodiment of the present invention will be described below.

[0138] Figures 8a and 8b show how a pair of side arms are operated by the drive unit of a display device according to one embodiment of the present invention. Figures 9a and 9b show how multiple corner arms are operated by the drive unit of a display device according to one embodiment of the present invention. Figure 10a is a rear view showing the display device according to one embodiment of the present invention in basic mode. Figure 10b is a rear view showing the display device according to one embodiment of the present invention in bending mode.

[0139] The mode switching of the display device 1000 begins with the operation of the drive unit 260.

[0140] When switching from basic mode to bending mode, the drive source 261 rotates the worm gear 265 through the rotation of the driven gear 264, and the rotational force of the worm gear 265 is transmitted to the wheel gear 266. The wheel gear 266 then rotates the cam wheel 250 and the pinion 220.

[0141] As shown in Figures 8a and 8b, when the pinion 220 rotates counterclockwise, the first rack 203 and the second rack 208 move in opposite directions. Both the first rack 203 and the second rack 208 may contain gears that mesh with the gears of the pinion 220. Consequently, the first side arm 201 and the second side arm 205 move in a linear motion.

[0142] Furthermore, as shown in Figures 9a and 9b, when the cam wheel 250 rotates counterclockwise, the multiple cam followers 241, 242, 243, and 244 move along the multiple cam rails 251, 252, 253, and 254, respectively. As the multiple cam followers 241, 242, 243, and 244 move, the multiple corner arms 231, 232, 233, and 234 move linearly. For example, the multiple cam followers 241, 242, 243, and 244 may be located at the innermost ends of the multiple cam rails 251, 252, 253, and 254, respectively. When the multiple cam followers 241, 242, 243, and 244 rotate, they may be located at the outermost ends of the multiple cam rails 251, 252, 253, and 254, respectively.

[0143] As shown in Figures 10a and 10b, when the display device 1000 switches from basic mode to bending mode, the first side arm 201 moves linearly to bend the first side DS1 of the display module 100, and the second side arm 205 moves linearly to bend the second side DS2 of the display module 100. In addition, the first corner arm 231 moves linearly to bend the first corner DC1 of the display module 100, the second corner arm 232 moves linearly to bend the second corner DC2 of the display module 100, the third corner arm 233 moves linearly to bend the third corner DC3 of the display module 100, and the fourth corner arm 234 moves linearly to bend the fourth corner DC4 of the display module 100. At this time, all sides and corners of the display module 100 are bent.

[0144] After the display module 100 is bent, the drive unit 260 can restrain the rotation of the cam wheel 250 to maintain the display module 100 in the bent state.

[0145] In this way, the bending module 200 causes the display module 100 to be deformed into a curved shape that envelops the user in front of it, providing the user with realistic image quality and immersion. When switching or converting from bending mode to basic mode, the drive unit 260 operates in the opposite direction. This causes all components to move in reverse order, returning the display module 100 to its flat state.

[0146] In one embodiment of the present invention, the display module 100 can simultaneously implement both side bending and corner bending. When the display module 100 is designed to bend only horizontally, it is difficult to provide users with realistic image quality and immersion in situations such as playing games or watching movies. Therefore, in one embodiment of the present invention, the display module 1000 can bend both the sides and corners of the display module 100, thereby enabling the implementation of screen configurations optimized for various uses such as gaming, watching movies, and document work. Consequently, the display module according to one embodiment of the present invention can provide users with an even greater sense of immersion and a wider variety of viewing experiences.

[0147] Embodiments of the present invention can also be described as follows.

[0148] A display device according to one embodiment of this specification includes a display module and a bending module positioned on the back of the display module to bend the display module, the bending module may include a cam wheel including a cam rail, a corner arm connected to a corner to bend the corner of the display module, and a cam follower connected to the corner arm so as to move along the cam rail and converting the rotational motion of the cam wheel into the linear motion of the corner arm.

[0149] According to other features of this specification, the rotation center of the cam wheel may be located in the center of the display module, four corner arms may be arranged so as to be connected to each of the four corners of the display module, and four cam rails and cam followers may be arranged so as to correspond to each of the four corner arms.

[0150] According to other features of this specification, the display device may further include a corner arm guide positioned on the back of the display module to guide the corner arm to move linearly.

[0151] According to other features of this specification, the bending module may further include a drive unit that provides rotational force to the cam wheel.

[0152] According to other features of this specification, the drive unit may include a wheel gear connected to the cam wheel so as to share a center of rotation with the cam wheel, a worm gear meshing with the wheel gear, and a drive source connected to the worm gear.

[0153] According to other features of this specification, the display device further includes a rotating member disposed to share a center of rotation with a cam wheel, and a rotary joint that rotatably supports the rotating member, wherein a wheel gear is disposed on the rotating member, and the cam wheel may include a recess that accommodates at least a portion of the wheel gear.

[0154] According to other features of this specification, the bending module may further include a side arm connected to the cam wheel so as to bend the side of the display module in conjunction with the cam wheel.

[0155] According to other features of this specification, the side arms may be positioned closer to the display module than the corner arms.

[0156] According to other features of this specification, the display device may further include a pinion positioned to share a center of rotation with the cam wheel, and the side arms may include a rack that meshes with the pinion.

[0157] According to other features of this specification, the display device may further include rack guides positioned on the back of the display module to guide the rack to move in a linear manner.

[0158] According to other features of this specification, the pinion and rack may be positioned closer to the display module than the cam wheel, and the cam wheel may be positioned to cover the pinion and rack.

[0159] According to other features of this specification, the display device further includes a rotating member positioned to share a center of rotation with a cam wheel, and a rotary joint that rotatably supports the rotating member, wherein a pinion may be positioned on one surface of the cam wheel facing the rotating member.

[0160] Other embodiments of this specification include a display module and a bending module positioned on the back of the display module, the bending module including a rotating shaft positioned in the center of the back of the display module, a worm gear positioned perpendicular to the rotating shaft, a wheel gear that meshes with the worm gear and rotates around the rotating shaft, and a plurality of bending arms positioned radially on the back of the display module and bending the display module in conjunction with the wheel gear.

[0161] According to other features of this specification, the bending arms may include side arms for bending the sides of a display module and corner arms for bending the corners of a display module.

[0162] According to other features of this specification, the display device may further include a cam wheel including a cam rail, and a cam follower connected to a corner arm so as to move along the cam rail, which converts the rotational motion of the cam wheel into the linear motion of the corner arm.

[0163] According to other features of this specification, the display device may further include a pinion that rotates upon receiving rotational force from a wheel gear, and the side arm may include a rack that meshes with the pinion.

[0164] A display device according to yet another embodiment of this specification includes a display module and a bending module positioned on the back of the display module, the bending module including a plurality of side arms attached to the sides of the display module and configured to bend the sides of the display module, a plurality of corner arms attached to the corners of the display module and configured to bend the corners of the display module, a cam wheel configured to rotate and configured to move the plurality of corner arms to bend the display module, and a drive unit configured to rotate the cam wheel.

[0165] According to other features of this specification, the side arms may be positioned closer to the display module than the corner arms, and the cam wheel may be positioned between the side arms and the corner arms.

[0166] According to other features of this specification, the drive unit may further include a drive source and a drive gear attached to the end of the drive source, and a plurality of side arms may be located on the drive source and the drive gear.

[0167] According to other features of this specification, the display device may further include a plurality of guides that contact the display module, and the plurality of side arms and the plurality of corner arms each include a plurality of slits, and the plurality of guides may be located inside the plurality of slits.

[0168] Although embodiments of this specification have been described in more detail above with reference to the attached drawings, this specification is not necessarily limited to these embodiments and can be modified and implemented in various ways within the scope of the technical concept of this specification. Accordingly, the embodiments disclosed herein are for illustrative purposes only, not to limit the technical concept of this specification, and the scope of the technical concept of this specification is not limited by such embodiments. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

Claims

1. Display module, and A bending module positioned on the back of the aforementioned display module, which bends the aforementioned display module. Includes, The aforementioned bending module is Cam wheel including cam rail, Corner arms connected to the corners of the display module for bending the corners of the display module, A cam follower is connected to the corner arm so as to move along the cam rail, and converts the rotational motion of the cam wheel into the linear motion of the corner arm. A display device, including a display device.

2. The rotation center of the cam wheel is located in the center of the display module. Multiple corner arms are provided, with four corner arms arranged to connect to each of the four corners of the display module. Multiple cam rails are provided, including four cam rails. Multiple cam followers are provided, including four cam followers. The cam rail and the cam follower are arranged to correspond to the four corner arms, The display device according to claim 1.

3. The display device according to claim 1, further comprising a corner arm guide positioned on the back of the display module to guide the corner arm to move linearly.

4. The display device according to claim 1, wherein the bending module further includes a drive unit that provides rotational force to the cam wheel.

5. The aforementioned drive unit is A wheel gear connected to the cam wheel so as to share a center of rotation with the cam wheel, A worm gear that meshes with the wheel gear, and A drive source connected to the worm gear and used to rotate the worm gear. The display device according to claim 4, including the following:

6. The aforementioned drive unit is A rotating member arranged to share a center of rotation with the cam wheel, and Rotary joint that rotatably supports the aforementioned rotating member It further includes, The wheel gear is arranged on the rotating member, A portion of the wheel gear is positioned in the recess of the cam wheel. The display device according to claim 5.

7. The display device according to claim 1, wherein the bending module further includes a side arm connected to the cam wheel so as to bend the side of the display module.

8. The display device according to claim 7, wherein the side arm is positioned closer to the display module than the corner arm.

9. The system further includes a pinion that is positioned to share a center of rotation with the cam wheel, The side arm includes a rack that meshes with the pinion, The display device according to claim 7.

10. The display device according to claim 9, further comprising a rack guide positioned on the back of the display module to guide the rack to move in a linear motion.

11. The pinion and the rack are positioned between the display module and the cam wheel. The cam wheel is superimposed on the pinion and the rack in the horizontal direction of the display device. The display device according to claim 9.

12. A rotating member arranged to share a center of rotation with the cam wheel, and Rotary joint that rotatably supports the aforementioned rotating member It further includes, The pinion is positioned on the surface of the cam wheel facing the rotating member. The display device according to claim 11.

13. Display module, and Bending module located on the back of the aforementioned display module Includes, The aforementioned bending module is A rotating shaft located in the center of the back of the aforementioned display module, A worm gear arranged in a direction perpendicular to the rotation axis, A wheel gear that meshes with the worm gear and rotates around the rotation axis, and Multiple bending arms are arranged radially on the back of the aforementioned display module. Includes, The plurality of bending arms bend the display module. Display device.

14. The aforementioned multiple bending arms are Side arms for bending the sides of the display module, and / or Including a corner arm for bending the corner of the display module, The display device according to claim 13.

15. Cam wheel including cam rail, and A cam follower connected to the corner arm so as to move along the cam rail. It further includes, The cam follower converts the rotational motion of the cam wheel into the linear motion of the corner arm. The display device according to claim 14.

16. The system further includes a pinion that rotates upon receiving rotational force from the wheel gear, The side arm includes a rack that meshes with the pinion, The side arm moves by the rotation of the pinion. The display device according to claim 14.

17. Display module, and Bending module located on the back of the aforementioned display module Includes, The aforementioned bending module is Multiple side arms are attached to the side of the display module and configured to bend the side of the display module. Multiple corner arms are attached to the corners of the display module and configured to bend the corners of the display module. A cam wheel configured to rotate and move the plurality of corner arms to bend the display module, and A drive unit configured to rotate the cam wheel A display device, including a display device.

18. The plurality of side arms are positioned closer to the display module than the plurality of corner arms. The cam wheel is located between the plurality of side arms and the plurality of corner arms, The display device according to claim 17.

19. The aforementioned drive unit is Power source, and A drive gear attached to the end of the aforementioned drive source. It further includes, The plurality of side arms are located on the drive source and the drive gear, The display device according to claim 17.

20. The display module further includes a plurality of guides that contact the display module, Each of the aforementioned side arms and corner arms includes a plurality of slits, The plurality of guides are located inside the plurality of slits, The display device according to claim 18.

Images