Display device

Abstract

The display device may comprise: a frame; an LED module including a taper pin assembled to the frame; and a ball clamp which is coupled to the frame and to which the taper pin is assembled. The ball clamp may comprise: a case including a first inclined surface; a ball holder disposed inside the case so as to be movable in a first direction in which the taper pin is inserted and / or a second direction in which the taper pin is separated; a magnet which is attached to the ball holder and moves the ball holder in the first direction or the second direction by a magnetic force; and a plurality of balls which are disposed inside the ball holder and fix and / or release the taper pin by moving along the first inclined surface when the ball holder moves in the first direction or the second direction.

Description

Display device

[0001] The disclosed invention relates to a display device that is improved to make the assembly and separation of LED modules easier while maintaining strong fixation of the LED modules.

[0002] Generally, a display device is a device that displays an image, and monitors and televisions fall into this category. A display device is a type of output device that converts acquired or stored electrical information into visual information and displays it to a user, and it is used in various fields, such as homes and workplaces.

[0003] Display devices include monitor devices connected to personal computers or server computers, portable computer devices, navigation terminal devices, general television devices, Internet Protocol Television (IPTV) devices, portable terminal devices such as smartphones, tablet PCs, Personal Digital Assistants (PDAs), or cellular phones, various display devices used to play images such as advertisements or movies in industrial settings, or various other types of audio / video systems.

[0004] A display device can form a single screen by means of multiple display modules. Multiple display modules forming a single screen can be assembled into a frame to form a display device.

[0005] One embodiment of the present disclosure may include a display device improved to facilitate the assembly and / or separation of an LED module.

[0006] One embodiment of the present disclosure may include a display device improved to strongly maintain the fixing force of an LED module assembled to a frame.

[0007] One embodiment of the present disclosure may include a display device capable of assembling an LED module to a frame or separating an LED module from a frame by means of the magnetic force of a magnet.

[0008] One embodiment of the present disclosure may include a display device capable of separating an LED module from a frame by rotating a knob.

[0009] According to one aspect of the present disclosure, a display device comprises a frame, an LED module including a tapered pin, and a ball clamp configured to connect the frame and the LED module to each other, wherein the ball clamp comprises a ball clamp configured to combine the frame and the LED module when the tapered pin is inserted in a first direction, and the ball clamp comprises a case including a first inclined surface, a ball holder configured to be movable in the first direction or the second direction within the case as the tapered pin is inserted into the ball clamp in the first direction or removed from the ball clamp in a second direction opposite to the first direction, a magnet attached to the ball holder and moving the ball holder in the first direction or the second direction by magnetic force, and a plurality of balls disposed within the ball holder, wherein when the ball holder moves in the second direction, the plurality of balls move along the first inclined surface to fix the tapered pin, or when the ball holder moves in the first direction, the plurality of balls move along the first inclined surface. It may include a plurality of balls configured to release a tapered pin and a knob that moves the ball holder in the first direction according to rotation so that the plurality of balls release the tapered pin.

[0010] According to one aspect of the present disclosure, a display device comprises a frame, a light-emitting diode (LED) module having a tapered pin comprising a magnetic material, and a ball clamp configured to combine the frame and the LED module by inserting the tapered pin in a first direction, wherein the ball clamp comprises a case having a first inclined surface, a ball holder configured to move in a first direction or a second direction within the case as the tapered pin is inserted into the ball clamp in a first direction or removed from the ball clamp in a second direction opposite to the first direction, a first magnet attached to the ball holder and configured to move the ball holder in a first direction or a second direction by magnetic force, and a plurality of balls disposed within the ball holder, wherein the plurality of balls may be configured to move along the first inclined surface to fix the tapered pin when the ball holder moves in the second direction, or to move along the first inclined surface to release the tapered pin when the ball holder moves in the first direction, wherein the plurality of balls are arranged in a circular array, and the diameter of the circular array of the plurality of balls It may be configured to fix the tapered pin as it decreases, or to release the tapered pin as the diameter of the circular array increases.

[0011] The aspects and effects of the embodiments of the present disclosure are not limited to those mentioned above, and other aspects and effects of the present invention will be clearly understood by those skilled in the art from the following description.

[0012] FIG. 1 is a perspective view showing the front of a display device according to one embodiment.

[0013] FIG. 2 is a drawing illustrating an LED module assembled to a frame according to one embodiment.

[0014] FIG. 3 is an enlarged view of A shown in FIG. 2.

[0015] FIG. 4 is an enlarged view of B shown in FIG. 2.

[0016] FIG. 5 is a perspective view illustrating a ball clamp according to one embodiment.

[0017] FIG. 6 is a drawing showing a disassembled ball clamp and a tapered pin according to one embodiment.

[0018] FIG. 7 is a perspective view illustrating a ball holder according to one embodiment.

[0019] FIG. 8 is a perspective view illustrating the combined appearance of a case and a combined body according to one embodiment.

[0020] FIG. 9 is a perspective view showing a ball holder and a connecting body combined according to one embodiment.

[0021] FIG. 10 is a perspective view illustrating a connection body and a knob connected according to one embodiment.

[0022] FIG. 11 is a drawing showing a first contact surface of a knob and a second contact surface of a coupling body according to one embodiment.

[0023] FIG. 12 is a drawing illustrating the assembly of an LED module to a frame according to one embodiment.

[0024] FIG. 13 is a cross-sectional view illustrating the insertion of a tapered pin of an LED module into a ball clamp of a frame according to one embodiment.

[0025] FIG. 14 is a cross-sectional view showing the ball holder moving in a first direction as a plurality of balls are pushed while the tapered pin shown in FIG. 13 is inserted into the ball clamp.

[0026] FIG. 15 is a cross-sectional view showing the ball holder shown in FIG. 14 moving in a second direction by magnetic force.

[0027] FIG. 16 is a drawing illustrating the positioning of a magnet on the front of an LED module to separate the LED module assembled in a frame according to one embodiment using a magnet.

[0028] FIG. 17 is a cross-sectional view illustrating the ball holder being moved in a first direction by positioning a magnet on the front of an LED module assembled in a frame according to one embodiment.

[0029] FIG. 18 is a cross-sectional view showing an LED module assembled in a frame according to one embodiment separated.

[0030] FIG. 19 is a drawing illustrating an LED module assembled in a frame according to one embodiment and a knob in a locked state.

[0031] FIG. 20 is a cross-sectional view illustrating the contact between the first contact surface of the knob and the second contact surface of the coupling body when the knob is in a locked state according to one embodiment.

[0032] FIG. 21 is a drawing illustrating an LED module assembled in a frame according to one embodiment, and a knob rotated from a locked state to an unlocked state.

[0033] FIG. 22 is a cross-sectional view illustrating the contact between the first contact surface of the knob and the second contact surface of the coupling body when the knob is in an unlocked state according to one embodiment.

[0034] FIG. 23 is a cross-sectional view illustrating the ball holder being moved in a first direction by the knob when the knob is in an unlocked state according to one embodiment.

[0035] FIG. 24 is a drawing illustrating the separation of an LED module from a frame when the knob is in an unlocked state according to one embodiment.

[0036] FIG. 25 is a cross-sectional view illustrating the separation of an LED module from a frame when the knob is in an unlocked state according to one embodiment.

[0037] FIG. 26 is a drawing showing the LED module separated from the frame when the knob is in an unlocked state according to one embodiment.

[0038] The embodiments of the present disclosure and the terms used in the present disclosure are not intended to limit the present disclosure to specific embodiments, and it should be understood that the present disclosure includes various modifications, equivalents, or substitutions of such embodiments.

[0039] Additionally, the same reference numerals or symbols presented in each drawing of the present disclosure represent parts or components that perform substantially the same function.

[0040] Furthermore, the terms used in this disclosure are used to describe non-limiting embodiments and are not intended to limit or / or restrict the disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this disclosure, terms such as "comprising" or "having" are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the disclosure, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0041] Additionally, in the present disclosure, each of the phrases such as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “at least one of A, B, or C” may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0042] Additionally, the term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0043] Additionally, terms including ordinal numbers, such as "first," "second," etc., used in this disclosure may be used to describe various components, but said components are not limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of this disclosure, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any of a plurality of related described items.

[0044] Furthermore, in this disclosure, the meaning of "identical" includes items that are similar in attributes or similar within a certain range. Additionally, "identical" means "substantially identical." The meaning of "substantially identical" should be understood as including within the scope of "identical" numerical values ​​that fall within the margin of error in manufacturing or differences that do not hold significance relative to a reference value.

[0045] In addition, terms such as "~part," "~unit," "~block," "~part," and "~module" may refer to a unit that processes at least one function or operation. For example, the above terms may refer to at least one piece of hardware, such as an FPGA (field-programmable gate array) or an ASIC (application specific integrated circuit), or at least one piece of software stored in memory.

[0046] Meanwhile, terms such as "front," "rear," "left," and "right" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

[0047] Hereinafter, non-limited embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0048] FIG. 1 is a perspective view showing the front of a display device according to one embodiment. FIG. 2 is a drawing showing an LED module assembled to a frame according to one embodiment. FIG. 3 is an enlarged view of A shown in FIG. 2. FIG. 4 is an enlarged view of B shown in FIG. 2.

[0049] As illustrated in FIGS. 1 to 4, a display device may include a frame (10) and a plurality of LED modules (20) assembled to the frame (10). An image may be output from each of the plurality of LED modules (20). The plurality of LED modules (20) may be assembled to the frame (10) to form a single screen. Although the drawings show four LED modules (20) assembled to the frame (10), this is not limited thereto. For example, three or fewer LED modules (20) may be assembled to the frame (10) to form a display device. Additionally, five or more LED modules (20) may be assembled to the frame (10) to form a display device.

[0050] The frame (10) may include at least one ball clamp coupling hole (11). At least one ball clamp (100), to which a plurality of LED modules (20) are assembled, may be coupled to the frame (10). The ball clamp (100) may be coupled to the ball clamp coupling hole (11). The ball clamp coupling hole (11) may be formed to penetrate the frame (10). A portion of the ball clamp (100) may be accommodated inside the ball clamp coupling hole (11). The diameter of the rear end of the ball clamp coupling hole (11) may be larger than the diameter of the front end to which the plurality of LED modules (20) are assembled.

[0051] Each of the plurality of LED modules (20) may include a tapered pin (30) assembled to the corresponding ball clamp (100). Each of the plurality of LED modules (20) may include a pair of tapered pins (30). A pair of tapered pins (30) may be coupled to the upper and lower parts of each of the plurality of LED modules (20), respectively. The plurality of ball clamps (100) may be provided to have a number corresponding to the number of tapered pins (30) of the plurality of LED modules (20).

[0052] The tapered pin (30) can be coupled to the rear surface of a plurality of LED modules (20). The tapered pin (30) can be formed of a magnetic material. The tapered pin (30) can be formed of a magnetic material so that the first magnet (130) attached to the ball holder (120), which will be described later, can be attached to the tapered pin (30) by magnetic force. (See FIG. 6)

[0053] FIG. 5 is a perspective view illustrating a ball clamp according to one embodiment. FIG. 6 is a drawing illustrating a disassembled ball clamp and a tapered pin according to one embodiment. FIG. 7 is a perspective view illustrating a ball holder according to one embodiment. FIG. 8 is a perspective view illustrating a case and a coupling body combined according to one embodiment. FIG. 9 is a perspective view illustrating a ball holder and a connecting body combined according to one embodiment. FIG. 10 is a perspective view illustrating a connecting body and a knob connected according to one embodiment. FIG. 11 is a drawing illustrating a first contact surface of a knob and a second contact surface of a coupling body according to one embodiment.

[0054] As illustrated in FIGS. 5 to 11, the tapered pin (30) may include a coupling portion (31). The coupling portion (31) may be coupled to the LED module (20). The coupling portion (31) may be coupled to the rear surface of the LED module (20). When the coupling portion (31) is coupled to the rear surface of the LED module (20), it may not be exposed to the outside.

[0055] The tapered pin (30) may include an insertion portion (33). When the LED module (20) is assembled to the frame (10), the insertion portion (33) may be inserted into the first insertion hole (113) of the case (110) to be described later. A portion of the insertion portion (33) may be inserted into the second insertion hole (121) of the ball holder (120) to be described later.

[0056] The tapered pin (30) may include a push portion (35). The push portion (35) may be formed in the insert portion (33). The push portion (35) may be formed on the front surface of the insert portion (33) with respect to the direction in which the insert portion (33) is inserted into the first insertion hole (113) of the case (110). When the insert portion (33) is inserted into the first insertion hole (113) of the case (110) and a part of the insert portion (33) is inserted into the second insertion hole (121) of the ball holder (120), the push portion (35) can push a plurality of balls (140) to be described later.

[0057] The tapered pin (30) may include a tapered portion (37). The tapered portion (37) may be provided to have a tapered shape. The tapered portion (37) may be formed in the insertion portion (33). The tapered portion (37) may be formed at the rear of the push portion (35) with respect to the direction in which the insertion portion (33) is inserted into the first insertion hole (113) of the case (110). The tapered portion (37) may be formed so that its diameter gradually decreases in the direction away from the push portion (35). When the tapered pin (30) is assembled to the ball clamp (100) of the frame (10), the tapered portion (37) may be a part that is fixed by a plurality of balls (140).

[0058] A ball clamp (100) can be coupled to a frame (10). The ball clamp (100) can be coupled to a ball clamp coupling hole (11) of the frame (10). A portion of the ball clamp (100) coupled to the ball clamp coupling hole (11) may be exposed to the outside. A tapered pin (30) coupled to an LED module (20) can be assembled to the ball clamp (100). At least one tapered pin (30) coupled to a plurality of LED modules (20) can be assembled to at least one ball clamp (100) so that the plurality of LED modules (20) can be assembled to the frame (10). (See FIG. 2 and FIG. 4)

[0059] The ball clamp (100) may include a case (110). A ball holder (120) may be accommodated inside the case (110). The case (110) may include a case body (111) located inside the ball clamp coupling hole (11) when the ball clamp (100) is coupled to the ball clamp coupling hole (11) of the frame (10). That is, when the ball clamp (100) is coupled to the ball clamp coupling hole (11) of the frame (10), the case body (111) may be located inside the frame (10). (See FIGS. 2 and 4)

[0060] The case (110) may include a first insertion hole (113). The first insertion hole (113) may be opened in a direction toward the LED module (20) of the case body (111). The first insertion hole (113) may be formed on the front surface of the case (110). The first insertion hole (113) may be formed on the front surface of the case body (111). Here, the front surface may be the front side of the frame (10) where a plurality of LED modules (20) are assembled. The first insertion hole (113) may be exposed to the outside through a ball clamp coupling hole (11) formed in the frame (10). A tapered pin (30) coupled to the LED module (20) may be inserted into the first insertion hole (113). An insertion portion (33) of the tapered pin (30) may be inserted into the first insertion hole (113). (See Figs. 2 and 4)

[0061] The case (110) may include a first inclined surface (115). The first inclined surface (115) may be formed on the front of the case (110). The first inclined surface (115) may be formed on the front of the case body (111). Here, the front may be the front side of the frame (10) where a plurality of LED modules (20) are assembled. The first inclined surface (115) may be formed such that its diameter gradually increases in the direction toward the rear of the case body (111) from the first insertion hole (113) formed on the front of the case body (111). (See FIG. 2)

[0062] The case (110) may include a plurality of first assembly hooks (117). A plurality of first assembly hooks (117) may be formed on the opposite side facing the side of the case body (111) where the first insertion hole (113) is formed. A plurality of first assembly hooks (117) may be formed on the rear of the case (110). A plurality of first assembly hooks (117) may be formed on the rear of the case body (111). A plurality of first assembly hooks (117) may be connected (e.g., assembled) to a coupling body (150) to be described later. By connecting (e.g., assembled) a plurality of first assembly hooks (117) to the coupling body (150), the case (110) may be connected (e.g., assembled) to the coupling body (150).

[0063] The ball clamp (100) may include a ball holder (120). The ball holder (120) may be accommodated inside a case (110). The ball holder (120) may be provided to be movable in a first direction and / or a second direction inside the case (110). Here, the first direction may be the direction in which the tapered pin (30) is inserted. The second direction may be the direction in which the tapered pin (30) is separated.

[0064] The ball holder (120) may include a second insertion hole (121). The second insertion hole (121) may be formed at a position corresponding to the first insertion hole (113) formed in the case (110). A tapered pin (30) may be inserted into the second insertion hole (121). A portion of the insertion part (33) of the tapered pin (30) may be inserted into the second insertion hole (121).

[0065] The ball holder (120) may include a receiving hole (123). The receiving hole (123) may be formed on the second inclined surface (125) of the ball holder (120) to be described later. A plurality of receiving holes (123) may be provided. Although four receiving holes (123) are shown in the drawings, the embodiments of the present disclosure are not limited thereto. For example, the receiving holes (123) may be formed in three or fewer, or in five or more. A plurality of balls (140) may be received in the receiving holes (123). For example, one ball (140) may be received in each of the plurality of receiving holes (123).

[0066] The receiving hole (123) may be formed to penetrate from the inside to the outside of the ball holder (120). The receiving hole (123) may be formed larger on the outside side of the ball holder (120) than on the inside side of the ball holder (120). That is, the portion of the receiving hole (123) located on the inside side of the ball holder (120) (e.g., the inside or the innermost portion of the receiving hole (123)) may be formed smaller than the diameter of the ball (140). In this way, since the portion of the receiving hole (123) located on the inside side of the ball holder (120) is formed smaller than the diameter of the ball (140), the ball (140) may be placed in the receiving hole (123) so as not to move into the inside of the ball holder (120). Meanwhile, a portion of the receiving hole (123) located on the outer side of the ball holder (120) (e.g., the outer or outermost portion of the receiving hole (123)) may be formed to be larger than the diameter of the ball (140). In this way, since the portion of the receiving hole (123) located on the outer side of the ball holder (120) is formed to be larger than the diameter of the ball (140), the ball (140) can be placed in the receiving hole (123) so that it can move to the outside of the ball holder (120). The ball (140) received in the receiving hole (123) can come into contact with the first inclined surface (115) of the case (110) through the portion of the receiving hole (123) located on the outer side of the ball holder (120). When the ball holder (120) moves in a first direction and / or a second direction inside the case (110), a plurality of balls (140) can move along a first inclined surface (115) formed in the case (110).

[0067] The ball holder (120) may include a second inclined surface (125). The second inclined surface (125) may be formed to correspond to the first inclined surface (115) of the case (110). The second inclined surface (125) may be formed such that its diameter gradually increases in the direction toward the rear of the ball holder (120) from the second insertion hole (121) formed at the front of the ball holder (120). A plurality of receiving holes (123) may be formed in the second inclined surface (125).

[0068] The ball holder (120) may include a plurality of second assembly holes (127). A connecting body (160), which will be described later, may be connected (e.g., assembled) to the plurality of second assembly holes (127). A plurality of second assembly hooks (163) formed on the connecting body (160) may be connected (e.g., assembled) to the plurality of second assembly holes (127). Since the connecting body (160) is connected (e.g., assembled) to the ball holder (120), when the ball holder (120) moves in a first direction and / or a second direction inside the case (110), the connecting body (160) may also move in the first direction and / or a second direction together with the ball holder (120).

[0069] The ball clamp (100) may include a first magnet (130). The first magnet (130) may be attached to a ball holder (120). The first magnet (130) may be attached inside the ball holder (120). Since the tapered pin (30) is formed of a magnetic material, the first magnet (130) attached to the ball holder (120) can move in a direction toward the tapered pin (30) by magnetic force. Since the first magnet (130) moves in a direction toward the tapered pin (30) by magnetic force, the ball holder (120) to which the first magnet (130) is attached can also move in a direction toward the tapered pin (30). That is, the ball holder (120) can move in a second direction by the magnetic force of the first magnet (130).

[0070] The ball clamp (100) may include a plurality of balls (140). The plurality of balls (140) may be received in a plurality of receiving holes (123) formed in the ball holder (120). The plurality of balls (140) and the plurality of receiving holes (123) may be formed in a corresponding number. The plurality of balls (140) provided in the ball holder (120) may move along the first inclined surface (115) of the case (110) when the ball holder (120) moves in the first direction and / or the second direction. The plurality of balls (140) may move along the first inclined surface (115) of the case (110) in the first direction and / or the second direction to fix and / or release the tapered pin (30). That is, the plurality of balls (140) can move along the first inclined surface (115) of the case (110) to adjust the diameter of the circle formed by the plurality of balls (140). Since the plurality of balls (140) move along the first inclined surface (115) of the case (110), when the ball holder (120) moves in the first direction, the diameter of the circle formed by the plurality of balls (140) can be adjusted to gradually increase. When the diameter of the circle formed by the plurality of balls (140) increases, the tapered pin (30) can be inserted between the plurality of balls (140). Also, when the ball holder (120) moves in the second direction, the diameter of the circle formed by the plurality of balls (140) can be adjusted to gradually decrease. When the diameter of the circle formed by the plurality of balls (140) decreases, the tapered pin (30) inserted between the plurality of balls (140) can be fixed by the plurality of balls (140).

[0071] The ball clamp (100) may include a coupling body (150). The coupling body (150) may be coupled to the frame (10). The coupling body (150) may be coupled to the rear surface of the frame (10). The coupling body (150) may be coupled to the outside surface of the frame (10). The coupling body (150) may be coupled to the outside surface of the ball clamp coupling hole (11) of the frame (10). The coupling body (150) may be coupled to the outside surface of the frame (10) and exposed to the outside. (See FIG. 13)

[0072] The coupling body (150) may include a coupling hole (151). The coupling hole (151) may be coupled to the frame (10) by a fastening member (S). A plurality of coupling holes (151) may be formed on each side of the coupling body (150). Since the coupling body (150) is coupled to the frame (10) by the fastening member (S), the frame (10) can be fixed. (See FIG. 19)

[0073] The connecting body (150) may include a second through hole (152). The second through hole (152) may be formed in the central part of the connecting body (150). The connecting body (160) may pass through the second through hole (152).

[0074] The coupling body (150) may include a plurality of first assembly holes (153). A plurality of first assembly hooks (117) formed in the case (110) may be connected (e.g., assembled) to the plurality of first assembly holes (153). A plurality of first assembly hooks (117) of the case (110) may be connected (e.g., assembled) to the plurality of first assembly holes (153), and the case (110) may be connected (e.g., assembled) to the coupling body (150).

[0075] The coupling body (150) may include a second contact surface (154) that contacts a knob (190) to be described later. The second contact surface (154) may contact a first contact surface (193) formed on the knob (190).

[0076] The second contact surface (154) may include a third planar portion (155) formed to protrude toward the first contact surface (193) formed on the knob (190). The second contact surface (154) may include a second inclined portion (156) formed on one side of the third planar portion (155) at an angle opposite to the direction toward the first contact surface (193). The second contact surface (154) may include a fourth planar portion (157) formed on one side of the second inclined portion (156). For example, the second inclined portion (156) may be located between the fourth planar portion (157) and the third planar portion (155). The third planar portion (155) may be formed to protrude further toward the first contact surface (193) than the fourth planar portion (157). A detailed description of the second contact surface (154) will be provided later.

[0077] The ball clamp (100) may include a connecting body (160). The connecting body (160) may be provided to penetrate the coupling body (150). The connecting body (160) may penetrate the coupling body (150) through a second through hole (152) formed in the coupling body (150). The connecting body (160) penetrating the coupling body (150) may connect the ball holder (120) and the knob (190). Since the ball holder (120) and the knob (190) are connected by the connecting body (160), if the knob (190) is rotated to move the knob (190) in a first direction, the ball holder (120) can move in the first direction. A detailed explanation of this will be provided later.

[0078] The connecting body (160) may include a connecting portion (161). The connecting portion (161) may be connected to the knob (190). The connecting body (160) may be connected to the knob (190) by passing through a first through hole (191) formed in the knob (190). The connecting portion (161) may be provided to have a diameter larger than the diameter of the first through hole (191) formed in the knob (190). Since the connecting portion (161) is provided to have a diameter larger than the diameter of the first through hole (191) formed in the knob (190), the connecting body (160) and the knob (190) may be connected when the connecting body (160) passes through the first through hole (191).

[0079] The connecting body (160) may include a plurality of second assembly hooks (163). The plurality of second assembly hooks (163) may be connected (e.g., assembled) to the ball holder (120). The plurality of second assembly hooks (163) may be connected (e.g., assembled) to a plurality of second assembly holes (127) formed in the ball holder (120). The plurality of second assembly hooks (163) may be connected (e.g., assembled) to the plurality of second assembly holes (127) formed in the ball holder (120), and the connecting body (160) may be connected (e.g., assembled) to the ball holder (120).

[0080] The ball clamp (100) may include an O-ring (170). The O-ring (170) may be provided in the connecting body (160). The O-ring (170) may compress the knob (190).

[0081] The ball clamp (100) may include a compression ring (180). The compression ring (180) may be provided in the connecting body (160). The compression ring (180) may be positioned between the connecting body (150) and the O-ring (170). The compression ring (180) may be positioned between the connecting body (150) and the O-ring (170) to compress the O-ring (170).

[0082] The ball clamp (100) may include a knob (190). The knob (190) may be connected to the ball holder (120) by a connecting body (160). The knob (190) connected to the connecting body (160) may be rotatably provided on the coupling body (150). The knob (190) may rotate while in contact with the coupling body (150).

[0083] The knob (190) may include a first through hole (191). The connecting body (160) may pass through the first through hole (191). The connecting body (160) that passes through the first through hole (191) may be connected to the knob (190) by a connecting part (161) having a diameter larger than the diameter of the first through hole (191) being caught in the first through hole (191). The first through hole (191) may allow the knob (190) to rotate relative to the connecting body (160). That is, when the knob (190) rotates, the connecting body (160) that passes through the first through hole (191) may not rotate.

[0084] The knob (190) may include a first contact surface (193) that contacts the coupling body (150). The first contact surface (193) may contact a second contact surface (154) formed on the coupling body (150).

[0085] The first contact surface (193) may include a first planar portion (195) formed to protrude toward a second contact surface (154) formed on the coupling body (150). The first contact surface (193) may include a first inclined portion (197) formed on one side of the first planar portion (195) in a direction opposite to the direction toward the second contact surface (154). The first contact surface (193) may include a second planar portion (199) formed on one side of the first inclined portion (197). For example, the first inclined portion may be located between the second planar portion (199) and the first planar portion (195). The first planar portion (195) may be formed to protrude further toward the second contact surface (154) than the second planar portion (199). A detailed description of the first contact surface (193) will be provided later.

[0086] Next, with reference to FIGS. 12 to 26, the operation of assembling and / or separating the LED module from the frame will be described in detail.

[0087] FIG. 12 is a drawing illustrating the assembly of an LED module to a frame according to one embodiment. FIG. 13 is a cross-sectional view illustrating the insertion of a tapered pin of an LED module according to one embodiment into a ball clamp of a frame. FIG. 14 is a cross-sectional view illustrating the ball holder moving in a first direction by pushing a plurality of balls as the tapered pin shown in FIG. 13 is inserted into the ball clamp. FIG. 15 is a cross-sectional view illustrating the ball holder shown in FIG. 14 moving in a second direction by magnetic force.

[0088] As illustrated in FIGS. 12 and 13, the LED module (20) can be assembled on the front of the frame (10). A tapered pin (30) coupled to the rear of the LED module (20) can be inserted into a first insertion hole (113) of a case (110) exposed to the front of the frame (10). (See FIG. 8) The insertion portion (33) of the tapered pin (30) inserted into the first insertion hole (113) of the case (110) can be inserted into a second insertion hole (121) of a ball holder (120). (See FIG. 7) When the insertion portion (33) of the tapered pin (30) is inserted into the second insertion hole (121) of the ball holder (120), the push portion (35) can come into contact with a plurality of balls (140).

[0089] As illustrated in FIG. 14, when the push portion (35) of the tapered pin (30) is in contact with a plurality of balls (140) and the tapered pin (30) is further inserted, the push portion (35) can push the plurality of balls (140). When the push portion (35) pushes the plurality of balls (140), the plurality of balls (140) can move in a first direction. When the plurality of balls (140) move in a first direction, the ball holder (120) can move in a first direction together with the plurality of balls (140). As the ball holder (120) moves in a first direction, the connecting body (160) connected to the ball holder (120) can also move in a first direction. As the connecting body (160) moves in a first direction, the knob (190) connected to the connecting body (160) can also move in a first direction. When the ball holder (120) moves in the first direction, a plurality of balls (140) in contact with the first inclined surface (115) of the case (110) can move in the first direction along the first inclined surface (115). (See FIG. 8) Since the first inclined surface (115) is formed so that its diameter gradually increases in the first direction, the diameter of the circle formed by the plurality of balls (140) moving in the first direction along the first inclined surface (115) can gradually increase. For example, the plurality of balls (140) can move outward so that they move away from each other, thereby increasing the diameter of the circular arrangement of the plurality of balls (140). As the diameter of the circle formed by the plurality of balls (140) gradually increases, the insertion part (33) of the tapered pin (30) can be inserted between the circles formed by the plurality of balls (140). When the insertion part (33) of the tapered pin (30) is inserted between the circles formed by the plurality of balls (140), the ball holder (120) comes into contact with the coupling body (150) and can stop moving in the first direction.

[0090] As illustrated in FIG. 15, when the insertion portion (33) of the tapered pin (30) is inserted between the plurality of balls (140) and the movement of the tapered pin (30) in the first direction stops, the ball holder (120) can move in the second direction by the magnetic force of the first magnet (130) attached to the ball holder (120). As the ball holder (120) moves in the second direction, the connecting body (160) connected to the ball holder (120) can also move in the second direction. As the connecting body (160) moves in the second direction, the knob (190) connected to the connecting body (160) can also move in the second direction. When the ball holder (120) moves in the second direction, the plurality of balls (140) can move in the second direction along the first inclined surface (115) of the case (110). When a plurality of balls (140) move in a second direction along the first inclined surface (115) of the case (110), the diameter of the circle formed by the plurality of balls (140) can gradually decrease. For example, the plurality of balls (140) may move inward toward each other, thereby reducing the diameter of the circular arrangement of the plurality of balls (140). The plurality of balls (140) may move in a second direction along the first inclined surface (115) of the case (110) while simultaneously moving along the inclined surface of the tapered portion (37) of the tapered pin (30). When the ball holder (120) moves in the second direction and comes into contact with the push portion (35) of the tapered pin (30), the ball holder (120) may stop moving in the second direction. Even if the movement of the ball holder (120) in the second direction stops, the magnetic force of the first magnet (130) can continue to apply force to the ball holder (120) in the second direction, and accordingly, the plurality of balls (140) can fix the tapered portion (37) of the tapered pin (30). When the tapered portion (37) of the tapered pin (30) is fixed by the plurality of balls (140), the LED module (20) can be assembled to the frame (30).

[0091] As described above, by using the magnetic force of the magnet to assemble the LED module (20) to the frame (10), the LED module (20) can be easily assembled to the frame (10). In addition, while easily assembling the LED module (20) to the frame (10), the fixing force of the LED module (20) can be maintained strongly.

[0092] FIG. 16 is a diagram illustrating the positioning of a magnet on the front of an LED module to separate the LED module assembled in a frame according to one embodiment using a magnet. FIG. 17 is a cross-sectional view illustrating the positioning of a magnet on the front of an LED module assembled in a frame according to one embodiment and the subsequent movement of a ball holder in a first direction. FIG. 18 is a cross-sectional view illustrating the separation of an LED module assembled in a frame according to one embodiment.

[0093] As illustrated in FIGS. 16 and 17, a second magnet (135) may be positioned on the front of the LED module (20) to separate the LED module (20) assembled on the front of the frame (10) from the frame (10). The second magnet (135) may be positioned on the front of the LED module (20) to correspond to (e.g., overlap) the position of the tapered pin (30). The front of the LED module (20) may be the opposite side of the surface to which the tapered pin (30) of the LED module (20) is joined. The second magnet (135) may be positioned on the front of the LED module (20) to correspond to (e.g., overlap) the position of the ball clamp (100). The second magnet (135) may have a polarity opposite to that of the first magnet (130) attached to the ball holder (120).

[0094] When the second magnet (135) is positioned on the front of the LED module (20), the first magnet (130) attached to the ball holder (120) can move away from the second magnet (135) by the magnetic force of the second magnet (135). That is, the first magnet (130) can move in the first direction. When the first magnet (130) moves in the first direction, the ball holder (120) to which the first magnet (130) is attached can also move in the first direction together with the first magnet (130).

[0095] When the ball holder (120) moves in the first direction, the plurality of balls (140) provided in the ball holder (120) can move in the first direction together with the ball holder (120). The plurality of balls (140) in contact with the first inclined surface (115) of the case (110) can move in the first direction along the first inclined surface (115). Since the first inclined surface (115) is formed so that its diameter gradually increases in the first direction, the diameter of the circle formed by the plurality of balls (140) moving in the first direction along the first inclined surface (115) can gradually increase. For example, the plurality of balls (140) can move outward so that they move away from each other, and the diameter of the circle in which the plurality of balls (140) are arranged in a circle can increase. As the diameter of the circle formed by the plurality of balls (140) gradually increases, the tapered pin (30) can be released from the plurality of balls (140). That is, when the diameter of the circle formed by the balls (140) becomes larger than the maximum diameter of the insertion part (33) of the tapered pin (30), the tapered pin (30) may be in a state where it can be detached from the balls (140). According to one embodiment, the circle may refer to a virtual circle passing through the portion of the surface of each of the balls (140) that faces the center point between the balls (140).

[0096] When the diameter of the circle formed by the plurality of balls (140) increases and the tapered pin (30) is released from the plurality of balls (140), the LED module (20) can be separated from the frame (10) as shown in FIG. 18.

[0097] As described above, by using the magnetic force of the magnet to separate the LED module (20) from the frame (10), the LED module (20) can be easily separated from the frame (10).

[0098] FIG. 19 is a drawing illustrating an LED module assembled in a frame according to one embodiment and a knob in a locked state. FIG. 20 is a cross-sectional view illustrating the contact between the first contact surface of the knob and the second contact surface of the coupling body when the knob is in a locked state according to one embodiment. FIG. 21 is a drawing illustrating an LED module assembled in a frame according to one embodiment and a knob rotated from a locked state to an unlocked state. FIG. 22 is a cross-sectional view illustrating the contact between the first contact surface of the knob and the second contact surface of the coupling body when the knob is in an unlocked state according to one embodiment. FIG. 23 is a cross-sectional view illustrating the ball holder moving in a first direction by the knob when the knob is in an unlocked state according to one embodiment. FIG. 24 is a drawing illustrating the separation of the LED module from the frame when the knob is in an unlocked state according to one embodiment. FIG. 25 is a cross-sectional view illustrating the separation of an LED module from a frame when the knob is in an unlocked state according to one embodiment. FIG. 26 is a drawing illustrating the separation of an LED module from a frame when the knob is in an unlocked state according to one embodiment.

[0099] As illustrated in FIGS. 19 and 20, when an LED module (20) is assembled to a frame (10) and the knob (190) is in a locked state, the tapered pin (30) coupled to the LED module (20) may be fixed to a ball clamp (100) coupled to the frame (10). That is, the tapered pin (30) may be fixed to the ball clamp (100) so that the LED module (20) cannot be separated from the frame (10).

[0100] When the knob (190) is in a locked state, the first contact surface (193) of the knob (190) may be in contact with the second contact surface (154) of the coupling body (150). When the knob (190) is in a locked state, the first planar portion (195) of the first contact surface (193) of the knob (190) may be in contact with the fourth planar portion (157) of the second contact surface (154) of the coupling body (150). When the knob (190) is in a locked state, the second planar portion (199) of the first contact surface (193) of the knob (190) may be in contact with the third planar portion (155) of the second contact surface (154) of the coupling body (150). However, according to some embodiments, the first planar portion (195) and the second planar portion (199) included in the first contact surface (193) of the knob (190) may not both simultaneously contact the fourth planar portion (157) and the third planar portion (155) included in the second contact surface (154) of the coupling body (150). For example, only the first planar portion (195) of the first contact surface (193) of the knob (190) contacts the fourth planar portion (157) of the second contact surface (154) of the coupling body (150), and the second planar portion (199) of the first contact surface (193) of the knob (190) does not contact the third planar portion (155) of the second contact surface (154) of the coupling body (150), or only the second planar portion (199) of the first contact surface (193) of the knob (190) contacts the third planar portion (155) of the second contact surface (154) of the coupling body (150), and the first planar portion (195) of the first contact surface (193) of the knob (190) contacts the second contact surface (154) of the coupling body (150). It may not come into contact with the fourth plane (157).

[0101] As illustrated in FIGS. 21 and 22, when the knob (190) is rotated while the LED module (20) is assembled to the frame (10), the knob (190) can be unlocked. When the knob (190) is unlocked, the tapered pin (30) connected to the LED module (20) may be released from the ball clamp (100) connected to the frame (10). That is, the tapered pin (30) may be released from the ball clamp (100), allowing the LED module (20) to be separated from the frame (10).

[0102] When the knob (190) is rotated, the first planar portion (195) of the first contact surface (193) of the knob (190) can move to the third planar portion (155) along the second inclined portion (156) of the second contact surface (154) of the coupling body (150).

[0103] When the knob (190) is rotated, the first planar portion (195) of the first contact surface (193) of the knob (190) moves along the second inclined portion (156) of the second contact surface (154) of the coupling body (150) to the third planar portion (155) and can come into contact with the third planar portion (155). The second planar portion (199) and the first inclined portion (197) of the first contact surface (193) of the knob (190) may be in a state where they do not come into contact with the second contact surface (154) of the coupling body (150). Because the first planar portion (195) protruding toward the second contact surface (154) of the coupling body (150) among the first contact surfaces (193) of the knob (190) comes into contact with the third planar portion (155) protruding toward the first contact surface (193) of the knob (190) among the second contact surfaces (154) of the coupling body (150), the knob (190) can move away from the coupling body (150). That is, the knob (190) can move in the first direction.

[0104] As illustrated in FIGS. 23 and 24, when the knob (190) is rotated to an unlocked state, the knob (190) may be in a state of being moved in a first direction. When the knob (190) moves in the first direction, the ball holder (120) connected to the knob (190) by the connecting body (160) may also move in the first direction. When the ball holder (120) moves in the first direction, the plurality of balls (140) provided in the ball holder (120) may move in the first direction together with the ball holder (120). The plurality of balls (140) in contact with the first inclined surface (115) of the case (110) may move in the first direction along the first inclined surface (115). Since the first inclined surface (115) is formed so that its diameter gradually increases in the first direction, the diameter of the circle formed by the plurality of balls (140) moving along the first inclined surface (115) in the first direction can gradually increase. As the diameter of the circle formed by the plurality of balls (140) gradually increases, the tapered pin (30) can be released from the plurality of balls (140). That is, when the diameter of the circle formed by the plurality of balls (140) becomes larger than the maximum diameter of the insertion part (33) of the tapered pin (30), the tapered pin (30) can be released from the plurality of balls (140).

[0105] When the diameter of the circle formed by the plurality of balls (140) increases and the tapered pin (30) is released from the plurality of balls (140), the LED module (20) can be separated from the frame (10) as shown in FIGS. 25 to 26.

[0106] Although not shown in the drawing, when the knob (190) is rotated back to its original position after the LED module (20) is separated from the frame (10), the ball holder (120) can be moved in a second direction by the knob (190).

[0107] As described above, by rotating the knob (190) to separate the LED module (20) from the frame (10), the LED module (20) can be easily separated from the frame (10).

[0108] A display device according to one embodiment of the disclosed invention includes a frame (10), an LED module (20) comprising a tapered pin (30) assembled to the frame, and a ball clamp (100) coupled to the frame and to which the tapered pin is assembled. The ball clamp comprises a case (110) having a first inclined surface (115), a ball holder (120) movably arranged inside the case in a first direction into which the tapered pin is inserted and / or in a second direction into which the tapered pin is separated, a first magnet (130) attached to the ball holder and moving the ball holder in the first direction and / or in the second direction by magnetic force, a plurality of balls (140) provided in the ball holder and moving along the first inclined surface to fix and / or release the tapered pin when the ball holder moves in the first direction and / or in the second direction, and a knob that moves the ball holder in the first direction according to rotation so that the plurality of balls release the tapered pin.

[0109] The ball clamp may further include a coupling body (150) coupled to the frame, a connecting body (160) arranged to penetrate the coupling body and connecting the ball holder and the knob, an O-ring (170) provided in the connecting body to compress the knob, and a compression ring (180) disposed between the coupling body and the O-ring to compress the O-ring.

[0110] The knob may include a first through hole (191) through which the connecting body passes, and may be formed to be rotatable with respect to the connecting body.

[0111] The knob may include a first contact surface (193) that contacts the coupling body, and the coupling body may include a second contact surface (154) that contacts the first contact surface.

[0112] The first contact surface may include a first planar portion (195) formed to protrude toward the second contact surface, a first inclined portion (197) formed on one side of the first planar portion and formed to be inclined in the opposite direction toward the second contact surface, and a second planar portion (199), and the first inclined portion may be located between the first planar portion and the second planar portion.

[0113] The second contact surface may include a third planar portion (155) formed to protrude toward the first contact surface, a second inclined portion (156) formed on one side of the third planar portion and formed to be inclined in the opposite direction toward the first contact surface, and a fourth planar portion (157), and the second inclined portion may be located between the third planar portion and the fourth planar portion.

[0114] When the plurality of balls are in a locked state of the knob that fixes the tapered pin, the first planar portion of the first contact surface contacts the fourth planar portion of the second contact surface, and the second planar portion of the first contact surface contacts the third planar portion of the second contact surface, or only the first planar portion of the first contact surface contacts the fourth planar portion of the second contact surface of the coupling body and the second planar portion of the first contact surface does not contact the third planar portion of the second contact surface of the coupling body, or only the second planar portion of the first contact surface contacts the third planar portion of the second contact surface of the coupling body and the first planar portion of the first contact surface does not contact the fourth planar portion of the second contact surface of the coupling body.

[0115] When the above knob is rotated, the first planar portion of the first contact surface can move to the third planar portion along the second inclined portion of the second contact surface.

[0116] When the knob is rotated so that the first planar portion of the first contact surface comes into contact with the third planar portion of the second contact surface, the ball holder is moved in the first direction by the knob, and the plurality of balls can release the tapered pin.

[0117] The above case may include a case body (111) located on the frame, and a first insertion hole (113) is formed on one side of the case body and is open toward the LED module of the case body, and the first insertion hole may be configured to receive the tapered pin, and a plurality of first assembly hooks (117) are formed on the other side of the case body (i.e., opposite side of the one side) so as to be assembled to the coupling body.

[0118] The above case body may include the first inclined surface, and the first inclined surface may be formed such that its diameter increases as it moves from the first insertion hole toward the plurality of first assembly hooks.

[0119] The above-mentioned coupling body may include a coupling hole (151) coupled to the frame, a second through hole (152) through which the connecting body passes, and a plurality of first assembly holes (153) into which the plurality of first assembly hooks are assembled.

[0120] The ball holder may include a second insertion hole (121) formed at a position corresponding to the first insertion hole and into which the tapered pin is inserted, a second inclined surface (125) formed to correspond to the first inclined surface of the case, a receiving hole (123) formed on the second inclined surface and into which the plurality of balls are received, and a plurality of second assembly holes (127) into which the connecting body is assembled.

[0121] The above tapered pin is formed of a magnetic material and may include a coupling part (31) coupled to the LED module, an insertion part (33) inserted into the first insertion hole, a push part (35) that pushes the plurality of balls in the first direction, and a tapered part (37) that is provided to have a tapered shape and fixed by the plurality of balls.

[0122] The above connecting body is provided to have a diameter larger than the diameter of the first through hole and may include a connecting part (161) connected to the knob and a plurality of second assembly hooks (163) assembled to the plurality of second assembly holes.

[0123] A display device according to one embodiment of the disclosed invention comprises a frame (10), an LED module (20) assembled to the frame, a tapered pin (30) formed of a magnetic material that is coupled to the LED module and assembled to the frame, and a ball clamp (100) coupled to the frame and to which the tapered pin is assembled. The ball clamp comprises a case (110) having an inclined surface (115), a ball holder (120) movably arranged inside the case in a first direction into which the tapered pin is inserted and / or in a second direction into which the tapered pin is separated, a first magnet (130) attached to the ball holder and causing the ball holder to move in the first direction and / or the second direction by magnetic force, and a plurality of balls provided in the ball holder, wherein when the ball holder moves in the first direction and / or the second direction, the balls (140) move along the inclined surface to adjust the diameter of the circle formed by the plurality of balls, and the plurality of balls fix and / or release the tapered pin according to the diameter of the circle formed by the plurality of balls.

[0124] When the tapered pin is inserted into the case, the ball holder moves in the first direction by the tapered pin that moves the plurality of balls in the first direction, and as the diameter of the circle formed by the plurality of balls that have moved in the first direction along the inclined surface increases, the tapered pin can be inserted into the circle formed by the plurality of balls.

[0125] When the tapered pin is inserted into the circle formed by the plurality of balls, the ball holder moves in the second direction by the magnetic force of the first magnet, and as the diameter of the circle formed by the plurality of balls decreases, the tapered pin can be fixed by the plurality of balls.

[0126] When a second magnet (135) having opposite polarity to the first magnet is positioned on the opposite side of the surface to which the tapered pin of the LED module is coupled, the ball holder moves in the first direction by the first magnet, and as the diameter of the circle formed by the plurality of balls increases, the tapered pin can be released from the plurality of balls.

[0127] The ball clamp may further include a knob (190) rotatably provided on the frame, and the knob is connected to the ball holder, so that when the knob rotates, the ball holder can move in the first direction and / or the second direction.

[0128] According to some embodiments of the present disclosure, assembly and / or separation of LED modules may be facilitated.

[0129] In addition, it can strongly maintain the fixing force of the LED module assembled in the frame.

[0130] In addition, it is possible to perform installation and maintenance work on LED modules quickly and efficiently.

[0131] In addition, the stability and durability of the display device can be improved by reinforcing the fixing force of the assembled LED module.

[0132] In addition, the LED module can have a fine pitch by separating it from the frame by a magnetic force acting from the front of the LED module.

[0133] The aspects and effects of the embodiments of the present disclosure are not limited to those described above, and may include other aspects and effects that are obvious to a person skilled in the art related to the present disclosure from the above description.

[0134] Although the embodiments of the present disclosure have been described by way of example with reference to the accompanying drawings, it will be understood by those skilled in the art that various changes in form and structure are possible without departing from the spirit and scope of the present disclosure.

Claims

1. Frame; An LED module including a tapered pin; and A ball clamp configured to connect the frame and the LED module to each other, wherein the ball clamp comprises a ball clamp configured to combine the frame and the LED module when the tapered pin is inserted in a first direction; The ball clamp above is, A case including a first inclined surface; A ball holder configured to be movable in the first direction or the second direction inside the case as the tapered pin is inserted into the ball clamp in the first direction or removed from the ball clamp in a second direction opposite to the first direction; A magnet attached to the ball holder and moving the ball holder in the first direction or the second direction by magnetic force; A plurality of balls disposed within the ball holder, wherein the plurality of balls are configured to fix the tapered pin by moving along the first inclined surface when the ball holder moves in the second direction, or to release the tapered pin by moving along the first inclined surface when the ball holder moves in the first direction; and A knob that moves the ball holder in the first direction according to rotation so that the plurality of balls release the tapered pin; A display device including 2. In Paragraph 1, The ball clamp above is, A connecting body configured to be connected to the above frame; A connecting body provided to penetrate the above-mentioned coupling body and connecting the ball holder and the knob; An O-ring provided in the above-mentioned connecting body to compress the above-mentioned knob; and A display device further comprising a compression ring disposed between the coupling body and the O-ring to compress the O-ring.

3. In Paragraph 2, The above knob includes a first through hole, and The above connecting body is disposed inside the first through hole, and The above knob is a display device configured to be rotatable relative to the above connecting body.

4. In Paragraph 3, The above knob includes a first contact surface, and A display device comprising a second contact surface configured to contact the first contact surface, wherein the above-mentioned coupling body is a second contact surface configured to contact the first contact surface.

5. In Paragraph 4, The above first contact surface is, A first planar portion formed to protrude toward the second contact surface; A first inclined portion formed on the side of the first planar portion and formed to be inclined in a third direction away from the second contact surface; and Includes a second plane portion; and The first inclined portion is a display device positioned between the first planar portion and the second planar portion.

6. In Paragraph 5, The above second contact surface is, A third planar portion formed to protrude toward the first contact surface; A second inclined portion formed on the side of the third planar portion, inclined in a fourth direction away from the first contact surface; and Includes a fourth plane section; and The second inclined portion is a display device positioned between the third planar portion and the fourth planar portion.

7. In Paragraph 6, The knob is configured to maintain a locked state in which the plurality of balls secure the tapered pin, and In the above locked state, A display device configured such that the first planar portion of the first contact surface contacts the fourth planar portion of the second contact surface, and the second planar portion of the first contact surface contacts the third planar portion of the second contact surface, or only the first planar portion of the first contact surface contacts the fourth planar portion of the second contact surface and the second planar portion of the first contact surface does not contact the third planar portion of the second contact surface, or only the second planar portion of the first contact surface contacts the third planar portion of the second contact surface and the first planar portion of the first contact surface does not contact the fourth planar portion of the second contact surface.

8. In Paragraph 7, A display device in which, depending on the rotation of the above knob, the first planar portion of the first contact surface moves to the third planar portion along the second inclined portion of the second contact surface.

9. In Paragraph 8, A display device in which, when the knob is rotated and the first planar portion of the first contact surface contacts the third planar portion of the second contact surface, the plurality of balls release the tapered pin as the ball holder moves in the first direction by the knob.

10. In Paragraph 3, The above case is, A case body disposed inside the above frame, wherein a first insertion hole is formed on a first side of the case body and is open toward the LED module of the case body, and the first insertion hole is configured to allow the tapered pin to be inserted; and A display device comprising: a first assembly hook formed on a second side opposite to the first side and configured to be connected to the coupling body.

11. In Paragraph 10, A display device wherein the case body includes the first inclined surface, and the first inclined surface is formed such that its diameter increases as it moves toward the third direction from the first insertion hole toward the first assembly hook.

12. In Paragraph 10, The above-mentioned connecting body is, A coupling hole configured to allow a part of the above frame to be inserted; A second through hole through which the above connecting body passes; and A display device comprising a first assembly hole configured to allow the above-mentioned replication 1 assembly hook to be inserted.

13. In Paragraph 12, The ball holder above is, A second insertion hole configured to overlap with the first insertion hole so that the tapered pin is inserted therein; A second inclined surface that overlaps with the first inclined surface of the above case; At least one receiving hole formed on the second inclined surface and receiving the plurality of balls; and A display device comprising a second assembly hole into which a part of the above-mentioned connecting body is inserted.

14. In Paragraph 13, The above-mentioned tapered pin is formed of a magnetic material, and The above-mentioned tapered pin is, A coupling part connected to the above LED module; An insertion part inserted into the first insertion hole; A push unit that pushes the plurality of balls in the first direction; and A display device comprising a tapered portion fixed by the plurality of balls.

15. In Paragraph 13, The above connecting body is, A connecting part connected to the above knob, wherein the diameter of the connecting part is larger than the diameter of the first through hole; and A display device comprising a second assembly hook inserted into the second assembly hole.

Images