WO2007037565A1

WO2007037565A1 - Angle adjustment apparatus of display device

Info

Publication number: WO2007037565A1
Application number: PCT/KR2005/003243
Authority: WO
Inventors: Kyung Wook Kim
Original assignee: Se A Mechanics Co., Ltd.
Priority date: 2005-09-30
Filing date: 2005-09-30
Publication date: 2007-04-05

Abstract

An angle adjustment apparatus of a display device is provided. The apparatus includes a set bracket, a moving plate, a supporting base, a swivel support plate, a fastening member, and a tilt unit. The display device is mounted in the set bracket. The moving plate is combined with the set bracket to control movements of the display device. The supporting base supports the moving plate. The supporting base is inserted into the swivel support plate. The fastening member passes through the moving plate and the supporting base. The swivel support plate is seated on the tilt unit. The tilt unit allows the display device to move back and forth.

Description

ANGLE ADJUSTMENT APPARATUS OF DISPLAY DEVICE

Technical Field

[1] The present invention relates to an angle adjustment apparatus of a display device, and more particularly, to an angle adjustment apparatus capable of freely setting a rotational angle and a rotational direction of a display device attached to a wall or a ceiling.

[2]

Background Art

[3] Generally, display devices mean television (TV) monitors or computer monitors.

Recently, in case of the TV monitors, the monitors form a plane shape as in plasma display panels (PDPs) and liquid crystal displays (LCDs) and are manufactured remarkably larger in its size than general cathode ray tubes (CRTs). Further, the display monitors are mounted on a wall surface, so that utility of an inner space is promoted.

[4] However, with the display devices mounted on the wall surface, there is a disadvantage that a height or a direction of the display devices cannot be adjusted. In other words, since the display devices cannot be rotated if they are fixedly attached to the wall surface, a user usually stands aside from a front side of the display devices to watch the display devices. In that case, there is a disadvantage that a screen cannot be seen properly.

[5] Therefore, a person positioned at a position where it is inconvenient to watch the screen of the display device from its front side, cannot properly watch the screen of the display device.

[6]

Disclosure of Invention Technical Problem

[7] Accordingly, the present invention is directed to an angle adjustment apparatus of a display device that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.

[8] An object of the present invention is to provide an angle adjustment apparatus of a display device capable of allowing a user to be able to watch a clear screen even though the user watching the screen is positioned at a position deviated a predetermined angle from a front side of the display device by allowing an angle adjustment to be easily made even in case the display device is mounted on a wall surface. Technical Solution

[9] To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described, there is provided an angle adjustment apparatus of a display device, which includes: a set bracket on which the display device is mounted; a moving plate combined to the set bracket, for controlling movements of the display device; a supporting base for supporting the moving plate; a swivel support plate for receiving the supporting base; a fastening member for passing through the moving plate and the supporting base; and a tilt unit on which the swivel support plate is seated, for allowing the display device to move back and forth.

[10] In another aspect of the present invention, there is provided an angle adjustment apparatus of a display device, which includes: a set bracket; a moving plate combined to a backside of the set bracket, for rotating a predetermined angle and having a stopper housing formed in a predetermined length on its backside; a stopper received to the stopper housing; a friction rear combined to the backside of the moving plate and having a stopper groove for receiving the stopper; a supporting base on which the friction rear is seated; a swivel support plate on which the supporting base is detachably mounted; a sliding base on which the swivel support plate is seated; a link member for allowing the sliding base to move back and forth and/or left and right; and a base plate to which the link member is combined.

[11] In still another aspect of the present invention, there is provided an angle adjustment apparatus of a display device, which includes: a swivel unit having a moving plate for allowing the display device to be adjusted up and down and/or left and right in its angle and to be rotated clockwise or counterclockwise, a friction rear combined to a backside of the moving plate, a stopper inserted between the moving plate and the friction rear, a supporting base on which the friction rear is seated, and a swivel support plate to which the supporting base is detachably combined; and a tilt unit having a sliding base to which the swivel support plate is combined, a link member combined to a backside of the sliding base, for controlling back and forth and/ or left and right movements of the swivel unit, and a base plate to which the link member is combined.

[12]

Advantageous Effects

[13] According to the above-described angle adjustment apparatus of the display device, the display device can be easily adjusted to an angle appropriate for a user's watching position.

[14] Further, only an angle adjustment of the display device can be made, or a back/forth position adjustment and a left/right and an up/down rotational angle adjustments can be simultaneously performed. [15] Further, a rotational angle adjustment apparatus is detachable from a back/forth position adjustment apparatus, so that the rotational angle adjustment apparatus and the back/forth position adjustment apparatus can be used independently or simultaneously depending on an installation position and purpose of the display device. [16] Still further, a safety device for controlling a rotational amount of the display apparatus is attached, so that safety can be sufficiently secured in case a child manipulates the display device. [17]

Brief Description of the Drawings [18] The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. [19] In the drawings :

[20] FIG. 1 is a perspective view of an angle adjustment apparatus of a display device according to the present invention; [21] FIG. 2 is an exploded, perspective view of a swivel unit according to the present invention; [22] FIG. 3 is a backside, perspective view of a moving plate according to the present invention; [23] FIG. 4 is a front, perspective view of a friction rear according to the present invention; [24] FIG. 5 is a backside, perspective view illustrating a state in which a friction rear is mounted on a backside of a moving plate according to the present invention; [25] FIG. 6 is a front, perspective view of a supporting base according to the present invention; [26] FIG. 7 is a front, perspective view of a swivel support plate according to the present invention; [27] FIG. 8 is a front, perspective view illustrating a state in which a swivel unit of an angle adjustment apparatus of a display device according to the present invention is mounted on a wall surface;

[28] FIG. 9 is a backside, perspective view of the swivel unit;

[29] FIG. 10 is an exploded, perspective view of a tilt unit according to the present invention; [30] FIG. 11 is a backside, perspective view of a sliding base according to the present invention; [31] FlG. 12 is a front, perspective view of a link panel according to the present invention;

[32] FlG. 13 is a perspective view illustrating a tilt unit moves to left and right directions in an angle adjustment apparatus of a display device according to the present invention;

[33] FlG. 14 is a perspective view illustrating the display device moves to a front direction in an angle adjustment apparatus of a display device according to the present invention; and

[34] FlG. 15 is a view illustrating a safety device for controlling a rotational amount of a display device is attached in an angle adjustment apparatus of a display device according to the present invention.

[35]

Best Mode for Carrying Out the Invention

[36] FlG. 1 is a perspective view of an angle adjustment apparatus of a display device according to the present invention.

[37] Referring to FlG. 1, an angle adjustment apparatus 100 of a display device includes: a swivel unit 200 mounting the display device on its front side, for adjusting up/down, left/right, and a rotational angle of the display device; and a tilt unit 300 having the swivel unit 200 detachably mounted on its front portion, for adjusting a translational motion to a back/forth direction of the display device.

[38] With the above construction, the display device can be adjusted to up/down and left/right in its angle and can be rotated. Further, the display device can perform a translational motion to a back/forth direction using the tilt unit 300. The swivel unit 200 can be separated from the tilt unit 300. Accordingly, the swivel unit 200 can be installed independently or combined and installed together with the tilt unit 300.

[39] The angle adjustment apparatus 100 will be described in detail with reference to the drawings below.

[40] FlG. 2 is an exploded, perspective view of a swivel unit according to the present invention.

[41] Referring to FlG. 2, the swivel unit 200 of the present invention includes: a set bracket 210 combined to a backside of the display device; a moving plate 250 combined to a backside of the set bracket 210 and whose central portion subsides with a predetermined depth and a predetermined diameter; a supporting base 270 mounted on a backside of the moving plate 250; a friction rear 260 inserted between the moving plate 250 and the supporting base 270, for reducing frictional force generated due to rotation of the moving plate 250; and a swivel support plate 290 to which a peripheral portion of the supporting base 270 is inserted and combined to a wall surface or a front side of the tilt unit 300.

[42] Further, the swivel unit 200 further includes: a friction front 240 seated on a subsiding portion of the moving plate 250, for controlling frictional force of the moving plate 250; a plate spring 230 seated on a front side of the friction front 240 and having predetermined elastic force; a shaft 280 inserted into the supporting base 270 in a passing through manner from a backside of the supporting base 270 and passing through a central portion of the plate spring 230; and a nut 220 fit on an outer periphery of the shaft 280, for allowing the respective members to be combined into one unit.

[43]

Mode for the Invention

[44] Assembling process and function of the above-described swivel unit 200 will be described below.

[45] First, the friction rear 260 is seated on a front side of the supporting base 270, a backside of a subsiding portion of the moving plate 250 is seated on a front side of the friction rear 260, the friction front 240 is seated on a front side of the subsiding portion of the moving plate 250. After that, the plate spring 230 is seated on a front side of the friction front 240, the shaft 280 is inserted from a backside of the supporting base 270 and passes through up to the plate spring 230. At this point, the nut 220 is fit in and fastened at one end of the shaft 280 that passes through the central portion of the plate spring 230 and protruded so that the respective parts the shaft 280 passes through may be combined into one unit. After that, the set bracket 210 is seated on a front side of the moving plate 250 and fastened at the moving plate 250 using a fastening member. Finally, the set bracket 210 is mounted on a backside of the display device using a fastening member.

[46] If the swivel unit 200 is completed as described above, the swivel support plate 290 is attached to a wall surface of a position where the display device is to be installed. After that, the supporting base 270 is inserted into the swivel support plate 290 from its upper portion to its lower portion.

[47] Using the swivel unit 200 of the present invention, a user can freely rotate the display device to a desired angle.

[48] FIG. 3 is a backside, perspective view of a moving plate according to the present invention.

[49] Referring to FIG. 3, the moving plate 250 moves together with the display device and frictional force is controlled in its intensity by the friction front mounted on a front side of the moving plate 250 and the friction rear 260 mounted on a backside of the moving plate 250. [50] In detail, the moving plate 250 includes: a plate body 251 ; a subsiding portion 252 for subsiding in a predetermined diameter and a predetermined depth at a central portion of the plate body; a stopper groove 254 formed in a predetermined depth and a predetermined length on a backside of the subsiding portion 252; a moving hole 253 formed in a passing through manner with a predetermined diameter on a lower side of the subsiding portion 252; and a scale 255 formed on a backside of the subsiding portion 252, for allowing a rotational angle of the display device to be measured.

[51] In more detail, the stopper grooves 254 are formed in a length reaching the moving hole 253 from one upper end of the subsiding portion 252 and symmetrically prepared on an opposite position. A spherical stopper 400 which will be described later is seated on the stopper groove 254. Further, when the moving plate 250 is rotated a predetermined angle, the stopper 400 moves along the stopper groove 254. In other words, the moving plate 250 can be rotated as much as a length of the stopper groove 254.

[52] Further, the shaft 280 passes through a central portion of the moving hole 253 and a maximum angle in which the plate body 251 can rotate up/down or left/right is an angle when the shaft 280 moves from the central portion of the moving hole 253 and touches a peripheral portion of the moving hole 253.

[53] FIG. 4 is a front, perspective view of a friction rear according to the present invention.

[54] Referring to FIG. 4, the friction rear 260 mounted on the swivel unit 200 forms a dish shape subsiding in a predetermined diameter and a predetermined depth. Further, a curvature with which the friction rear 260 subsides is the same as a curvature of the subsiding portion 252 formed in the moving plate 250.

[55] In detail, the friction rear 260 includes: a stopper housing 262 formed in a predetermined depth and a predetermined length on a periphery of its upper end; a fixing protuberance 263 formed on one end of the stopper housing 262 and protruded backward a predetermined height; and a shaft-passing hole 261 formed in a predetermined diameter on its central portion.

[56] In more detail, the stopper 400 is seated on the stopper housing 262 to move along a curved surface of the stopper housing 262 when the moving plate 250 rotates. Further, the stopper housing 262 is formed in a direction perpendicular to the stopper groove 254 formed in the subsiding portion 252 of the moving plate 250. A plurality of uneven-surface portions are formed on a bottom of the stopper housing 262 so that a rotational amount of the display device may be measured by a sound and a tactual sense generated when the stopper 400 passes by the uneven-surface portions. The stopper 400 is inserted into a point where the stopper groove 254 and the stopper housing 262 intersect.

[57] In the meantime, the fixing protuberance 263 is fit in a fixing-protuberance seat groove 275 (refer to FlG. 6) formed in the supporting base 270 which will be described later to prevent the friction rear 260 from running idle on the supporting base 270.

[58] FlG. 5 is a backside, perspective view illustrating a state in which a friction rear is mounted on a backside of a moving plate according to the present invention.

[59] Referring to FlG. 5, as described above, the friction rear 260 is mounted on a backside of the subsiding portion 252 of the moving plate 250 so that the subsiding portion 252 may contact an inner periphery of the friction rear 260. Further, the stopper 400 is inserted into a point where the stopper housing 262 and the stopper groove 254 intersect. Accordingly, the stopper 400 moves along the stopper housing 262 or the stopper groove 254. In other words, the stopper housing 262 or the stopper groove 254 moves with the stopper 400 fixed.

[60] In detail, in case the moving plate 250 moves sloppily up/down or left/right a predetermined angle, the stopper 400 performs a relative motion to up/down or left/right directions within the stopper groove 254. Further, in case the moving plate 250 is inclined in a direction perpendicular to a direction in which the stopper groove 254 is formed, the stopper 400 moves toward the same point within the stopper housing 262. In case the moving plate 250 rotates clockwise or counterclockwise, the stopper 400 rotates clockwise or counterclockwise within the stopper housing 262.

[61] FlG. 6 is a front, perspective view of a supporting base according to the present invention.

[62] Referring to FlG. 6, the supporting base 270 includes: a guide sleeve 271 extended with a predetermined height and a predetermined diameter from its upper surface; a subsiding portion 272 subsiding with a predetermined depth in an inside of the guide sleeve 271 and on which the subsiding portion of the moving plate 250 is seated; a shaft-passing through hole 273 formed at a central portion of the subsiding portion 272 in a passing through manner so that the shaft 280 passes through; a stopper-housing seat groove 274 of a band shape subsiding with a predetermined depth along an edge of the subsiding portion 272; and a fixing-protuberance seat groove 275 subsiding at one side of a bottom of the stopper-housing seat groove 274, for receiving a fixing protuberance 263 protruded on a backside of the friction rear 260.

[63] In detail, the fixing protuberance 263 of the friction rear 260 is inserted into the fixing groove seat groove 275, whereby the friction rear 260 is fixed at the supporting base 270. Further, a backside of the stopper housing 262 is seated on the stopper- housing seat groove 274, whereby the friction rear 260 is stuck closely on the supporting base 270.

[64] FlG. 7 is a front, perspective view of a swivel support plate according to the present invention.

[65] Referring to FlG. 7, the swivel support plate 290 has a supporting-base-receiving portion 291 such that its inside is cut in approximately an U-shape, its periphery is protruded in a predetermined height and then bent inward so that the supporting base 270 may be inserted therein.

[66] With the above-described construction, the supporting base 270 of the swivel unit

200 where the display device is mounted is inserted into the supporting-base-receiving portion 291 from its upper portion to its lower portion. Further, in case of an adjustment apparatus of a display device requiring only the swivel unit 200, the swivel support plate 290 is mounted on a wall surface using a fastening member, whereby the display device can be rotated up/down, left/right directions, clockwise, or counterclockwise.

[67] In the meantime, in case an adjustment apparatus of a display device 100 where the swivel unit 200 is combined with the tilt unit 300 is required, the swivel support plate 290 can be mounted on a front side of a sliding base 310 which will be described later.

[68] FIG. 8 is a front, perspective view illustrating a state in which a swivel unit of an angle adjustment apparatus of a display device according to the present invention is mounted on a wall surface and FIG. 9 is a backside, perspective view of the swivel unit.

[69] Referring to FIGS. 8 and 9, the swivel unit 200 allows the display device to be inclined or rotated up/down or left/right by inserting the supporting base 270 into the swivel support plate 290 with the swivel support plate 290 attached to a wall surface.

[70] That is, in case only the swivel unit 200 is attached to a wall surface, it can be used for a place where the display device don't need to perform a translational motion back and forth. Further, the supporting base 270 can be combined with the swivel support plate 290 in a freely detachable manner from the swivel support plate 290. Accordingly, there is an advantage that the display device can be freely detached from the wall surface.

[71] FIG. 10 is an exploded, perspective view of a tilt unit according to the present invention.

[72] Referring to HG. 10, the tilt unit 300 is a unit that allows the swivel unit 200 to be able to move back and forth.

[73] In detail, the tilt unit 300 includes: a sliding base 310 on which the swivel unit 200 is seated; a link panel 320 whose one end is rotatably mounted on a backside of the sliding base 310, for guiding a back/forth translational motion of the swivel unit 200; a link guide 330 in which the other end of the link panel 320 is fit, for guiding left/right movement of the other end of the link panel 320; and a base plate 340 on upper/lower portions of which the link guides 330 are mounted, for allowing the tilt unit to be fixedly attached to a wall surface. Here, the base plate 340 has a connection end 341 extended a predetermined length in left/right edges of the tilt unit, for allowing the two base plates 340 to be integrally combined each other.

[74] With the above-described construction, the swivel unit 200 mounted on the sliding base 310 can be moved back and forth by movement of the link panel 320.

[75] Here, the link guide 330 has, in its inner side, a hinge groove 331 in which one end of the link panel 320 is fit and that allows the link panel 320 to be moved left and right. Accordingly, a distance to a left/right direction in which one end of the link panel 320 can be moved maximally is the same as a length of the hinge groove 331 formed in the link guide 330. In the following, respective elements constituting the tilt unit 300 will be described in more detail with reference to the accompanying drawings.

[76] FlG. 11 is a backside, perspective view of a sliding base according to the present invention.

[77] Referring to FlG. 11, the sliding base 310 has a plurality of fastening bosses so that the swivel support plate 290 may be seated and has, on its backside, a link panel fastening end 311 to which one end of the link panel 320 is combined. Further, the link panel fastening end 311 has a pin receiving hole 312 for receiving a fastening pin 350 formed on it. In detail, the fastening fin 350 is inserted into the pin receiving hole 312 and one end of the link panel 320 is rotatably combined to the sliding base 310 by the fastening pin 350.

[78] Further, the link panel fastening end 311 is formed on an upper and a lower sides of the sliding base 310 to allow an upper and a lower ends of the link panel 320 to be fastened therein.

[79] FlG. 12 is a front, perspective view of a link panel according to the present invention.

[80] Referring to FlG. 12, the link panel 320 has a fastening hinge 321 for receiving the fastening pin 350 formed its one end. In detail, the fastening hinge 321 is formed on an upper and a lower sides of an edge portion of the link panel 320. Further, a pin receiving hole 322 for receiving the fastening pin 350 is formed in an inside of the fastening hinge 321 in a passing through manner.

[81] Further, a moving hinge 323 moving along the link guide 330 is formed at an upper and a lower corners facing a portion where the fastening hinge 321 is formed. The moving hinge 323 has a protuberance 324 protruded in a predetermined height in its inner side and the protuberance 324 is fit in the hinge groove 331 subsiding in the link guide 330. Further, the protuberance 324 performs a reciprocating motion from one end to the other end of the link guide 330 along the hinge groove 331.

[82] In detail, if the protuberance 324 is moved to an inner end from an outer end of the link guide 330, the link panel 320 is protruded forward so that the sliding base 310 is projected toward a front side.

[83] FlG. 13 is a perspective view illustrating the tilt unit moves to left and right directions in an angle adjustment apparatus of a display device according to the present invention.

[84] Referring to FlG. 13, the display device can be pushed to the left or the right so as to be moved with the swivel unit 200 on which the display device is mounted, combined with the tilt unit 300.

[85] Referring to FlG. 13, in case a user intends to move the display device to the left a predetermined distance, if the user pushes the display device to the left, the protuberance formed 324 on the link panel 320 is moved to the left along the hinge groove 331 of the link guide 330. Here, the link panel 320 can be maximally moved up to a left end of the link guide 330.

[86] With the swivel unit 200 combined together with the tilt unit 300, the display device can be inclined or rotated a predetermined angle to up/down or left/right directions by the swivel unit 200, and simultaneously, the display device itself can be moved to the left or the right a predetermined distance.

[87] FlG. 14 is a perspective view illustrating the display device moves forward in the angle adjustment apparatus of display device according to the present invention.

[88] Referring to FlG. 14, if a user pulls the display device so that the display device may move forward a predetermined distance, the link panel 320 moves.

[89] In detail, the fastening hinge 321 of the link panel 320, combined with a backside of the sliding base 310 is rotated with the fastening pin 350 inserted into the link panel fastening end 311 used for a rotational shaft. Further, the moving hinge 323 formed at an opposite side of the fastening hinge 321 of the link panel 320 and combined with the link guide 330 moves inward along the link guide 330. That is, the link panel 320 moves forward with being closely stuck on the base plate 340, whereby the display device moves forward.

[90] FlG. 15 is a view illustrating a safety device for controlling a rotational amount of a display device is attached in the angle adjustment apparatus of the display device according to the present invention.

[91] Referring to FlG. 15, the display device can be rotated as much as a length of the stopper housing 262 formed on a front side of the friction rear 260 by the swivel unit 200 constituting the angle adjustment apparatus 100 of the display device. That is, a rotational amount of the display device is determined depending on the length of the stopper housing 262 symmetrically formed on an inner edge of the friction rear 260.

[92] For example, if a distance between ends of the symmetrically formed stopper housings 262 is formed in a close distance, the display device can be rotated as much as almost 360°.

[93] In that case, a rotational amount of the display device needs to be controlled. In other words, if a child who is less sensible rotates the display device by taking one side of the display device with the display device mounted on the adjustment apparatus, there is a danger that the display device might rotate more than 90°.

[94] To prevent such an excessive rotation, a rotation control unit is attached to a backside of the set bracket 210. In more detail, for the rotation control unit, a chain 400 whose one end is connected to an upper portion on a backside of the set bracket and whose other end is connected to a lower portion on the backside of the set bracket is provided. Further, a fixing pin 410 passes through approximately a central portion of the chain 400 and the fixing pin 410 is fixed to a wall surface where the angle adjustment apparatus 100 of the display device is attached.

[95] With the above-described construction, an end of the chain 400 is combined with the set bracket 210 and the chain 400 is fixed to the wall surface by the fixing pin 410.

[96] Therefore, if a user rotates the display device, the display device rotates only as much as a length that corresponds to the chain 400. In detail, since part of the chain is fixed to the wall surface by the fixing pin 410, a rotational amount of the display device is limited by a length of the chain 400. Thanks to the above-described safety device, in case a child who is less sensible rotates the display device, the display device is rotated as much as a predetermined angle so that stability can be secured.

[97] While the present invention has been described and illustrated herein with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made therein without departing from the spirit and scope of the invention. Thus, it is intended that the present invention covers the modifications and variations of this invention that come within the scope of the appended claims and their equivalents. Industrial Applicability

[98] According to the angle adjustment apparatus of the display device, the screen of the display device can be freely adjusted to a desired direction and a distance between the wall surface and the display device can be freely adjusted.

[99]

Claims

[I] An angle adjustment apparatus of a display device, comprising: a set bracket on which the display device is mounted; a moving plate combined to the set bracket, for controlling movements of the display device; a supporting base for supporting the moving plate; a swivel support plate for receiving the supporting base; a fastening member for passing through the moving plate and the supporting base; and a tilt unit on which the swivel support plate is seated and allowing the display device to move back and forth. [2] The apparatus according to claim 1, wherein the moving plate has a subsiding portion for subsiding with a predetermined diameter and depth in its inner side. [3] The apparatus according to claim 2, wherein the subsiding portion has a hole of a predetermined size on its center. [4] The apparatus according to claim 1, further comprising a friction front seated on a front side of the moving plate. [5] The apparatus according to claim 1, further comprising a friction rear seated on a backside of the moving plate. [6] The apparatus according to claim 4, further comprising at least one or more plate springs combined to a front side of the friction front. [7] The apparatus according to claim 1, wherein the fastening member comprises: a shaft passing through from the supporting base; and a nut fit on an outer periphery of the shaft. [8] The apparatus according to claim 1, wherein the moving plate has a groove having a predetermined length and depth on its backside, and the groove receives a stopper of a ball shape. [9] The apparatus according to claim 5, wherein the friction rear comprises: a subsiding portion formed with a predetermined depth and length on its inner edge; and a protuberance protruded in a predetermined length on its backside. [10] The apparatus according to claim 9, wherein the supporting base comprises: a seat groove for receiving the subsiding portion; and an insertion groove that subsides in a bottom of the seat groove, for receiving the protuberance.

[II] The apparatus according to claim 1, wherein the supporting base comprises: a guide sleeve protruded with a predetermined diameter and height from a front side of the supporting base; and a subsiding portion that subsides with a predetermined depth in an inner side of the guide sleeve, for receiving the subsiding portion of the moving plate. [12] The apparatus according to claim 1, wherein the tilt unit comprises: a sliding base to which the swivel support plate is combined; a link panel whose one end is rotatably combined to a backside of the sliding base; at least one or more link guides to which the other end of the link panel is combined, for allowing the link panel to move left/right; and a base plate to which the link guide is combined. [13] The apparatus according to claim 1, further comprising a safety chain whose both ends are combined to a backside of the set bracket and fixed to a wall surface by a fastening member. [14] An angle adjustment apparatus of a display device, comprising: a set bracket; a moving plate combined to a backside of the set bracket, for rotating a predetermined angle and having a stopper housing formed in a predetermined length on its backside; a stopper received to the stopper housing; a friction rear combined to the backside of the moving plate and having a stopper groove for receiving the stopper; a supporting base on which the friction rear is seated; a swivel support plate on which the supporting base is detachably mounted; a sliding base on which the swivel support plate is seated; a link member for allowing the sliding base to move back and forth and/or left and right; and a base plate to which the link member is combined. [15] The apparatus according to claim 14, wherein the stopper housing and the stopper groove are formed in a direction perpendicular to each other and the stopper is a spherical bearing covered by the stopper housing and the stopper groove. [16] The apparatus according to claim 14, wherein the stopper groove has at least one or more uneven portions on its bottom. [17] The apparatus according to claim 14, wherein the supporting base comprises: a guide sleeve to a front side of which the friction rear is seated, protruded forward a predetermined height, and having a subsiding portion for receiving the friction rear on its inner side. [18] The apparatus according to claim 17, wherein the subsiding portion has a groove for receiving the stopper groove on its edge portion.

[19] The apparatus according to claim 14, wherein friction force is generated at the moving plate by the friction front and the friction rear.

[20] The apparatus according to claim 14, wherein the swivel support plate comprises an insertion portion cut in approximately an U-shape in its inner side and whose inner periphery is protruded and bent so as to receive an edge portion of the supporting base.

[21] An angle adjustment apparatus of a display device, comprising: a swivel unit having the display device mounted on its front side, for allowing the display device to be adjusted up and down and/or left and right in its angle; a sliding base having the swivel unit mounted on its front side; at least one or more link panels combined to a backside of the sliding base; a link guide to which upper and/or lower ends of the link panel is connected; and a base plate to which the link guide is attached.

[22] The apparatus according to claim 21, wherein the link panel has at least one or more fastening hinges formed on its one end and the sliding base has a fastening end protruded on its backside and combined with the fastening hinge.

[23] The apparatus according to claim 22, wherein the fastening hinge is rotatably fastened to the fastening end by a pin.

[24] The apparatus according to claim 21, wherein the link panel has at least one or more moving hinges formed on its other end and a protuberance protruded to an upper and a lower sides of the moving hinge, and the link guide has a hinge groove formed with a predetermined depth and length, for receiving the protuberance.

[25] An angle adjustment apparatus of a display device, comprising: a swivel unit having a moving plate for allowing the display device to be adjusted up and down and/or left and right in its angle and to be rotated clockwise or counterclockwise, a friction rear combined to a backside of the moving plate, a stopper inserted between the moving plate and the friction rear, a supporting base on which the friction rear is seated, and a swivel support plate to which the supporting base is detachably combined; and a tilt unit having a sliding base to which the swivel support plate is combined, a link member combined to a backside of the sliding base, for controlling back and forth and/or left and right movements of the swivel unit, and a base plate to which the link member is combined.