KR20090035408A - Supporting device and dual display unit having the same - Google Patents

Abstract

A dual display apparatus including a supporting apparatus and this for installing an auxiliary display device are provided to change posture and location of a sub-display without increasing the thickness of the main display apparatus. A main part display device(10) indicates image. A supporting apparatus(100) is combined with the main part display device. An auxiliary display device(20) is installed at the supporting apparatus. The interval of the sub-display between auxiliary device and main part display device is controlled. The supporting apparatus is rotated so that the auxiliary display device moves to the top or the either side of the main part display device. The supporting apparatus comprises a respective installed first retention element(110) in the main part display device and the auxiliary display device(120). The first and the second supporting members are slid in order to adjust the interval of the auxiliary display device and main part display device.

Description

Supporting device and dual display unit having the same {Supporting device and dual display unit having the same}

The present invention relates to a support device and a dual display device having the same, and more particularly, is provided between the auxiliary display device and the main display device, and the support device and the support device for variously changing the position and posture of the auxiliary display device. It relates to a dual display device.

As the use of computers through multitasking becomes more common, the spread of dual display devices is gradually increasing to provide various screens to users through additional display devices in addition to the basic display devices.

Korean Patent Publication No. 10-2006-134558 discloses an example of a dual display device. In the dual display device, an accommodating space is formed at a rear side of the main liquid crystal display, and a liquid crystal moving unit is installed in the accommodating space to guide the movement of the auxiliary liquid crystal display. Therefore, the auxiliary liquid crystal display device is accommodated in the storage space and can be moved upward or laterally of the main liquid crystal display device in the storage space by the liquid crystal moving part in use.

However, the conventional dual display device has the following problems.

In the conventional dual display device, since the auxiliary display device is integrally formed with the main display device and slides toward the upper or side portion of the main display device, the position and posture of the auxiliary display device are very limited, and the secondary display device is displayed on the existing display device. There was a problem that it could not be configured by adding a device.

In addition, since the storage space for accommodating the auxiliary display device and the moving part for sliding and moving the auxiliary display device are provided at the rear of the main display device, there is a problem that the overall thickness of the product is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and an object of the present invention is to provide a support device and a dual display device having the same to enable the attitude and position of the auxiliary display to be changed.

It is another object of the present invention to provide a support device and a dual display device having the same, which enables the auxiliary display device to be added to an existing display device and does not increase the thickness of the primary display device according to the installation of the auxiliary display device.

The dual display device according to the present invention includes a main display device for displaying an image, a support device coupled to the main display device, and an auxiliary display device installed on the support device, wherein the support device includes the main display device. Characterized in that the distance between the device and the auxiliary display device can be adjusted.

The support device is rotatably installed so that the auxiliary display device can move to the top or both sides of the main display device.

The support device is rotatably coupled to the auxiliary display device such that the auxiliary display device can be arranged horizontally and vertically.

The support device includes a first support member and a second support member respectively installed on the main display device and the sub display device, and the first support member and the second support member are the main display device and the sub display device. It is characterized in that coupled to the slide movement to adjust the interval of.

The first support member is characterized in that it comprises a guide rail for guiding the slide movement of the second support member.

A guide member for guiding a slide movement of the second support member is installed inside the guide rail.

At least one fixing protrusion is provided on one of the inner side of the guide rail and the guide member for fixing the position of the guide member, and the fixing groove to which the fixing protrusion is coupled is provided on the other.

The first support member includes a positioning groove for guiding a slide position of the second support member, and the second support member is provided with a stopper having a positioning protrusion for entering the positioning groove. It is done.

The second support member may include a hinge portion such that the auxiliary display device can be tilted in the front-rear direction.

The rear of the main display device is provided with an installation hole that satisfies the Besa (VESA) standard, the support device is characterized in that the installation through the installation hole.

The support device may further include an installation bracket having a shaft hole for supporting the main display device to be rotatable.

The mounting bracket has a first pivotal limit on both sides of the shaft hole

And the support device includes a second pivotal limit for limiting the range of rotation of the support device by contact with the first pivotal limit.

The support device may include a support member connecting between the main display device and the sub display device, and installed on the main display device or the sub display device to adjust a distance between the main display device and the sub display device. It characterized in that it comprises a slide unit for guiding the forward and backward movement of the support member.

The slide unit may be rotatably coupled to the primary display device or the secondary display device.

The support member is rotatably coupled to the primary display device or the secondary display device.

The slide unit is characterized in that it comprises a guide roller for guiding the forward and backward movement of the support member.

The support member is provided with a rack along a longitudinal direction, and the slide unit is provided with a pinion which rotates in engagement with the rack.

The support member is provided with a guide groove provided along the longitudinal direction, the slide unit is characterized in that it is provided with a slide projection coupled to the guide groove to limit the movement range of the support member.

The main display device has at least one first pivotal limit on its rear surface, and the support device is a second pivotal limit for limiting the range of rotation of the support device by contact with the first pivotal limit. It characterized by having a.

The support device according to the present invention is installed between the primary display device and the secondary display device and can adjust the distance between the primary display device and the secondary display device, and the secondary display device moves to the upper and both sides of the primary display device. It is characterized in that it is rotatably installed on the back of the main display device.

The support device is rotatably connected to the auxiliary display device such that the auxiliary display device can be arranged horizontally and vertically.

The support device includes a first support member and a second support member respectively installed on the main display device and the sub display device, and the first support member and the second support member are disposed between the main display device and the sub display device. It is characterized in that coupled to the slide movement to adjust the interval of.

The first support member is characterized in that it comprises a guide rail for guiding the slide movement of the second support member.

A guide member for guiding a slide movement of the second support member is installed inside the guide rail.

The first support member includes a positioning groove for guiding the slide position of the second support member, characterized in that the second support member is provided with a stopper having a positioning protrusion for entering the positioning groove; do.

The second support member may include a hinge portion such that the auxiliary display device can be tilted in the front-rear direction.

Characterized in that it is installed through the installation hole of the Besa (VESA) standard located on the back of the main display device.

And an installation bracket provided with a shaft hole for rotatably supporting the main display device.

According to the present invention, the auxiliary display device can be positioned on both sides or top of the main display device, and the posture can be changed in various positions and angles such as a rotation operation and a tilt operation.

In addition, even if a second display device is added to configure a dual display device, the overall product thickness is hardly increased. Such a dual display device can be newly added to a support device and a secondary display device. The advantage is that it can be easily implemented.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating a front surface of a dual display device to which a support device according to the present invention is applied.

The dual display device includes a primary display device 10 and a secondary display device 20. The secondary display device 20 is installed on the side of the primary display device 10.

The main display apparatus 10 is provided with a stand 12 supporting the main display apparatus 10 to face the user at a desk or a table under the main display apparatus 10. The stand 12 may not only support the main display device 10 but also various posture control such as a pivot operation in a left and right direction and a tilt operation in a vertical direction with respect to the main display device 10. It may be provided in a structure.

On the front of the primary display apparatus 10 and the secondary display apparatus 20, image portions 11 and 21 for displaying an image are provided, respectively, wherein the image portions 11 and 21 are LCDs or LCDs. It may be formed of a plasma display panel (PDP), and the image portion of the auxiliary display device 20 may be formed to have a smaller size than the image portion 11 of the primary display device 10.

As shown in FIG. 2, the support apparatus 100 is connected to the rear surfaces of the main display apparatus 10 and the sub display apparatus 20. The support device 100 may adjust the distance between the auxiliary display device 20 and the main display device 10 and also support the posture of the auxiliary display device 20 to be fixed. The support device 100 includes a first support member 110 installed in the main display device 10 and a second support member 120 installed in the auxiliary display device 20. The second support member 120 is slidably coupled to the first support member 110 so that the support device 100 can adjust its length. Therefore, the distance between the auxiliary display device 20 and the main display device 10 can be adjusted by adjusting the length of the support device 100.

In addition, the main display apparatus 10 and the sub display apparatus 20 may have first and second mounting brackets 130 so that the support apparatus 100 may be installed on the main display apparatus 10 and the sub display apparatus 20. 140 is fixed, the first support member 110 and the second support member 120 is rotatably coupled to the installation bracket (130, 140). Accordingly, the auxiliary display device 20 may be moved to the upper or side portion of the main display device 10 as well as the auxiliary display device 20 may be arranged in a horizontal or vertical view state while rotating.

With reference to Figures 3 to 4 looks at the configuration of the support device in detail.

On the back of the auxiliary display device 20, an input unit 20a is provided, in which an image signal terminal to which an image signal transmitted from a computer is input and a connection terminal for power supply are formed. Such image signals and power may be supplied via the main display apparatus 10 or may be supplied independently without passing through the main display apparatus 10.

In addition, the mounting brackets 130 and 140 are installed on the rear surfaces of the primary display apparatus 10 and the secondary display apparatus 20, respectively. In general, four display devices are arranged in a square having four squares satisfying the VESA standard at the rear side, and the rear side of the main display apparatus 10 and the auxiliary display apparatus 20 is installed to satisfy the VESA standard. The holes 13 and 22 are provided, and the mounting holes 130a and 142 are provided at positions corresponding to the mounting brackets 130 and 140 and are fixed thereto.

The mounting brackets 130 and 140 are provided with shaft holes 130b and 140a supporting the rotating shaft for the rotation of the first and second support members 110 and 120. The central region in which the shaft holes 130b and 140a are formed forms ridges 131 and 141 in the axial direction with respect to the installation surface in order to limit the friction area.

Axial holes 110a and 120a are also provided in the first support member 110 and the second support member 120, and the first fastening member 134 and the second fastening member 128 having a bolt shape are respectively supported by the first support member 110 and the second support member 120. It passes through the shaft hole (110a) of the member (110) side and the shaft hole (120a) of the second support member (120) and is coupled to the shaft holes (130b) and 140a of the mounting brackets (130) and (140).

Four friction rings 135, 136, 137 and 138 are installed between the first support member 110 and the first mounting bracket 130 so that the first support member 110 rotates at an appropriate speed. In addition, the first support member 110 is guided so that it can be stopped every time it rotates by 90 degrees. Similarly, three friction rings 125, 126 and 127 are installed between the second support member 120 and the second mounting bracket 140, and their functions are the same as those installed on the first support member 110 side. .

On the other hand, the first mounting bracket 130 is formed with a first pivot limit 132 for limiting the range of rotation of the first support member 110, the first support member 110 is a second pivot limit ( 110b) is installed. The first pivotal limit 132 and the second pivotal limit 110b form a contact surface with each other according to the phase of the first support member 110 and limit the rotation. 132 is provided on both sides of the shaft hole (130b) of the first mounting bracket 130 and the second turning limiting jaw (110b) is formed on one side of the shaft hole (110a). Accordingly, the rotation range of the first support member 110 is limited to about 180 degrees with both sides of the main display apparatus 10 as a boundary, and thus the sub display apparatus 20 moves downward of the main display apparatus 10. Can be fixed in both directions.

Next, looking at the coupling relationship between the first support member 110 and the second support member 120, one side of the first support member 110 has a basic structure for guiding the slide movement of the second support member 120 A guide rail 113 to be formed is provided. The guide rails 113 are provided with guide members 115 and 116 forming a contact surface with the second support member 120. The guide rail 113 is supported in the state where the guide members 115 and 116 are accommodated, and the guide members 115 and 116 support the second support member 120 and at the same time the second support member 120. Adjust the speed of movement by applying proper friction during the slide movement.

The first support member 110 is provided with fixing protrusions 112a and 112b to maintain the assembled state of the guide members 115 and 116 with respect to the retreat of the second support member 120, and the guide member 115 is provided. Also, fixing grooves 115a and 116b are provided at positions corresponding to the fixing protrusions 112a and 112b. In this case, the configuration of the fixing protrusion and the fixing groove may be changed into the guide members 115 and 116 and the first support member 110, respectively.

A pinhole 120d is provided at an end of the second support member 120 opposite to an end at which the auxiliary display device 20 is installed, and the release preventing pin 119 is coupled to the pinhole 120d. The release preventing pin 119 is coupled to the pinhole 120d while the end of the second support member 120 is moved to the opposite side through the rail portions 115a and 116a of the guide members 115 and 116. do. Therefore, when the second support member 120 moves outward in a state in which the release preventing pin 119 is coupled to the pinhole 120d, the release preventing pin 119 becomes the rail portion 115a ( Departure is prevented by being caught by the end of 116b and no longer moving forward.

The first support member 110 includes positioning grooves 111a and 111b for guiding a stop position when the second support member 120 slides, and the second support member 120 includes a positioning groove ( A stopper 117 having a fixing protrusion 117b for entering 111a and 111b is provided.

The stopper 117 is fixed by a method of coupling the fastening member 118 to the installation holes 117a and 120c provided in the stopper 117 and the second support member 120, respectively. 120 is fixed to the second support member 120 in a state in which it is coupled with the first support member 110. The second support member 120 is provided with a through hole 120b through which the fixing protrusion 117b penetrates and protrudes from the opposite side, and the fixing protrusion 117b is provided at the center of the stopper 117 formed in a plate shape and stopper 117 is provided. It is elastically supported by its shape.

The positioning grooves 111a and 111b are provided in pairs at a predetermined distance on the inner surface of the first supporting member 110, and the positioning grooves 111a and 11b have the auxiliary display device 20 as the main display device. It is provided at two points in which the positioning projection 117b is located on the inner surface of the first support member 110 in a state seated on the upper portion of the (10) and located on both sides. Therefore, when the auxiliary display apparatus 20 moves, the positioning protrusions 117b are coupled to the positioning grooves 111a and 111b when the auxiliary display apparatus 20 is positioned on the upper or both sides of the main display apparatus 10. Accordingly, the length of the support device 100 is fixed so as not to change arbitrarily.

In addition, the second support member 120 is provided with a hinge portion 122 so that the screen portion of the auxiliary display 20 rotates to form a tilt angle with the screen portion of the main display 10 to be tilted. In this case, the hinge portion 122 is provided in the state in which the second support member 120 is installed in the auxiliary display device 20 in consideration of the size of the auxiliary display device 20. It is preferable to set it within the range which does not exceed the outer boundary of 20).

In addition, the second support member 120 is provided with a bent portion 122 that is bent toward the front of the main display apparatus 10 while the support apparatus 100 is installed. In view of the fact that a thickness difference generally exists between 10 and the auxiliary display device 20, the auxiliary display device 20 may be positioned on the same plane as the main display device 10.

By such a configuration, as shown in FIG. 5, the auxiliary display device 20 is rotated by the hinge part 121 to form an angle of 90 degrees with the main display device 10, and the tilt operation is performed so that the front surface thereof is laterally oriented. Can be done.

In addition, as shown in FIG. 6, when the support apparatus 100 is rotated upward, the auxiliary display apparatus 20 may be posture controlled to be positioned above the main display apparatus 10. In this case, the auxiliary display apparatus 20 may also be controlled. You can rotate to change your posture to either landscape view or portrait view.

Such an auxiliary display device 20 can be easily separated from the support device 100, and can be used as an independent display device after separation.

7 is an exploded perspective view of a support device according to another embodiment of the present invention.

The support device 200 includes a support member 210 connecting between the primary display device 10 (see FIG. 3) and the secondary display device 20 (see FIG. 3), the secondary display device 20, and the primary display device 10. It comprises a slide unit 220 is coupled to the support member 210 and the slide movement so as to adjust the interval between the guiding movement of the support member 210.

One end of the support member 210 is rotatably coupled to the rear surface of the auxiliary display apparatus 20, which is the same as the above-described embodiment. However, unlike the previous embodiment, the two support members 110 and 120 are slidably coupled so that the length can be adjusted. In this embodiment, the support member 210 can not be adjusted by itself. The distance between the main display apparatus 10 and the sub display apparatus 20 may be adjusted by a slide movement with the slide unit 220 coupled to the rear of the display apparatus 10.

The slide unit 220 includes a rotating plate 221 constituting the base and a guide roller 222 installed on the rotating plate 221.

The rotating plate 221 is rotatably coupled with respect to the main display device 10, and a shaft hole 221a for forming a rotating shaft is provided at the center of the rotating plate 221.

As in the previous embodiment, the mounting bracket 130 is installed on the main display apparatus 10 through the mounting holes 130a of the VESA standard, and the shaft hole 130b and the ridge 131 are also mounted on the mounting bracket 130. Is formed.

Between the mounting bracket 130 and the rotating plate 221, the fastening member 134 is coupled in the front and rear direction through the shaft holes 130a and 221a to form a rotating shaft, and the friction between the fastening member 134 and the rotating plate 221. Rings 135 and 136 and washers 137 and 138 are placed.

In addition, the first mounting limiting jaw 132 and 133 are provided on the mounting bracket 130, and two second turning limiting jaws 224 and 225 are provided at one side of the rotating plate 221.

The first pivotal limiting jaws 132 and 133 are arranged to have a central angle of about 180 ° with respect to the shaft hole, and the second pivotal limiting jaws 224 and 225 are spaced apart from each other on one side of the rotating plate 221. Prepared. Therefore, when the support member 210 is directed toward the left side as shown, the slide unit 220 is in contact with the second pivotal limit 224 in which the first pivotal limit 132 on the left side is located below. When the support member 210 is turned in the right direction, the rotation of the auxiliary display device 20 is restricted by limiting rotation while the first pivotal limit 133 on the right contacts the remaining second pivotal limit 225. ) Can be maintained in a fixed state without being lowered further in the state positioned at both sides of the main display apparatus 10.

The guide rollers 222 installed on the rotating plate 221 are arranged in a rectangular shape consisting of four and two guide rollers 222 arranged on the upper part of the double rotating plate 221 support the upper part of the support member 210 and the lower part. The two guide rollers 222 arranged support the lower part of the support member 210 and guide the longitudinal retraction of the support member 210.

The support member 210 is provided with a guide groove 210a along the longitudinal direction, and the rotating plate 221 is provided with a slide protrusion 223 coupled to the guide groove 210a. The guide groove 210a is for limiting the moving range of the support member 210, and the slide protrusion 223 is inserted into the guide groove 210a when the support member 210 moves forward and backward along the guide roller 222. When moving in the guide groove 21a in a closed state and approaching and contacting both ends of the guide groove 210a, the movement is stopped while applying a braking force to the movement of the support member 210. Therefore, the moving range of the support member 210 is determined according to the length of the guide groove 210a is formed.

In this case, the slide protrusion 223 may be integrally formed with the rotating plate 221 or may be separately installed and then installed in the rotating plate 221.

In addition, the support member 210 and the rotating plate 221 is provided with a rack 211 and pinion 226, respectively. The rack 221 is installed along the longitudinal direction of the support member 210 similarly to the guide groove 210a and operates within the movement range of the support member 210, so the length corresponds to the length of the guide groove 210a. .

The pinion 226 installed on the rotating plate 221 is engaged with the rack 211 so that the rack 211 rotates in movement. The position of the rack 211 and the pinion 226 may be moved by the guide groove 210a and the slide protrusion 223 so that the pinion 226 is not separated from the rack 211 while the support member 210 is advanced. 210 is determined in consideration of the moving range. The rack 211 and the pinion 226 is to adjust the moving speed of the support member 2100 by adjusting the rotational resistance of the pinion 226 that rotates in accordance with the linear movement of the rack 211 support member 210 In this case, the rotational resistance of the pinion 226 is connected to a separate damper (not shown) to the pinion 226 or a high viscosity fluid is applied around the rotation axis of the pinion 226 to provide friction. It can be increased in increasing ways.

The support member 210 is provided with a hinge portion 210b for tilting the front and rearward tilt of the auxiliary display apparatus 20 in the same manner as in the previous embodiment, and is coupled between the support member 210 and the auxiliary display apparatus 20. The structure can also be formed in the same way. Accordingly, the mounting bracket 140 having the shaft hole 140a is coupled to the auxiliary display device 20, and friction rings 125, 126, and 127 are installed between the mounting bracket 140 and the support member 210. The support member 210 is rotatably coupled to the auxiliary display device 20 through the fastening member 128.

The installation brackets 130 and 140 respectively installed on the auxiliary display device 20 and the primary display device 10 are pre-installed to facilitate the installation of the support device 200, but the support device 200 is not installed. It is not necessary for the auxiliary display device 20 or the primary display device 10, such as the shaft hole (130b) (140a) or the first turning limiting jaw (132, 133) formed in the mounting bracket (130 140) If it is prepared, it should be noted that it can be omitted.

On the other hand, the cover member 212 may be installed on the support member 21 to form an appearance, and the cover unit 213 is also coupled to the slide unit 220. Since the support member 210 of the state in which the cover 213 is coupled to the slide unit 220 is coupled in a structure penetrating both sides, through holes 213a are provided at both sides of the cover 213 coupled to the slide unit 220. do.

8 is a perspective view illustrating a coupling state of the support member and the slide unit in a state where the cover is not assembled.

As described above, the slide unit 220 is rotatable with respect to the main display device 10 within a range of 180 °. The slide unit 220 supports the support member 210 in a state where the auxiliary display device 20 is installed at one end so as to move forward and backward, and also supports the support member 210 not to be separated in the front-rear direction.

The slide protrusion 223 is coupled to the guide groove 210a provided in the support member 210 so that the movement range of the support member 210 is limited by the length of the guide groove 210a. In addition, the rack 211 is installed on the support member 210 is the position of the auxiliary display device 20 by reducing the moving speed of the support member 210 through the combination with the pinion 226 is installed on the rotating plate 221 When changing, the speed of the support member 210 is rapidly increased and the guide groove 210a and the slide protrusion 223 are prevented from colliding at an excessive speed, thereby improving the operation feeling that the user feels and at the same time, the auxiliary display device 20 and the slide. To prevent damage to the projection 223.

The auxiliary display device 20 is provided with an input unit 20a having a terminal for inputting a video signal and supplying power to a rear surface thereof.

In addition, the support device 200 is provided with a cable holder 231a so that a cable (not shown) for fixing a video signal or power supply from the main display device 10 to the auxiliary display device 20 is achieved. It is provided in the cover 213.

9 is a perspective view illustrating a state in which an auxiliary display is positioned on an upper portion of a primary display device by a supporting device.

As shown in FIG. 8, the auxiliary display device 20 is located above the main display device 10 as compared to a state in which the auxiliary display device 20 is located on one side of the main display device 10 as shown in FIG. 8. The gap between the display device 20 and the main display device 10 is reduced. At this time, as the gap is reduced, a surplus portion not used for the support of the auxiliary display device 20 in the support member 210 is a slide unit 220. ) And is positioned below the slide unit 220.

In the present embodiment, the auxiliary display device 20 is rotatable with respect to the support device 200 as in the previous embodiment and can be arranged in a horizontal or vertical view, and the hinge portion 210b of the support device 210. This also allows tilting in the front-rear direction.

In addition, although the slide unit 220 is shown on the main display device 10 side, as shown in the case of installing the slide unit 220 to the secondary display device 20, the secondary display device 20 is the same. And the distance between the main display apparatus 10 can be adjusted.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention will be defined by the claims.

1 is a perspective view illustrating a front surface of a dual display device according to an exemplary embodiment of the present invention.

FIG. 2 is a perspective view illustrating a rear surface of the dual display device of FIG. 1.

3 is an exploded perspective view of a dual display device.

Figure 4 is an exploded perspective view showing an enlarged support device in FIG.

5 is a use state diagram illustrating a state in which the auxiliary display device is tilted.

6 is a use state diagram illustrating a state in which the auxiliary display device is located above the main display device.

7 is an exploded perspective view of a support device according to another embodiment of the present invention.

FIG. 8 is a perspective view of a dual monitor in a state in which the supporting device of FIG. 7 is installed.

FIG. 9 is a state diagram illustrating a state in which an auxiliary display device is positioned above the main display device by the support device of FIG. 7.

Claims (26)

A main display device for displaying an image, A support device coupled to the main display device; Includes an auxiliary display device installed in the support device, The support device, And a distance between the main display device and the sub display device. The dual display apparatus of claim 1, wherein the support apparatus is rotatably installed to move the auxiliary display apparatus to an upper side or both sides of the main display apparatus. The dual display apparatus of claim 1, wherein the support device is rotatably coupled to the auxiliary display device such that the auxiliary display device can be horizontally and vertically arranged. The display device of claim 1, wherein the support device includes a first support member and a second support member respectively installed on the main display device and the sub display device, and the first support member and the second support member are respectively connected to the main display device. Dual display device, characterized in that coupled to the slide movement to adjust the distance between the device and the secondary display device. The dual display apparatus of claim 4, wherein the first support member comprises a guide rail for guiding a slide movement of the second support member. The dual display apparatus according to claim 5, wherein a guide member for guiding a slide movement of the second support member is provided inside the guide rail. The method according to claim 6, wherein at least one fixing protrusion is provided on one of the inner side of the guide rail and the guide member for fixing the position of the guide member, and the fixing groove to which the fixing protrusion is coupled to the other is provided. Dual display device characterized by. 7. The method of claim 5 or 6, wherein the first support member includes a positioning groove for guiding a slide position of the second support member, and the second support member is positioned to enter the positioning groove. Dual display device characterized in that the stopper is formed projections are installed. The dual display apparatus of claim 4, wherein the second support member comprises a hinge portion such that the auxiliary display device is tilted in the front-rear direction. The dual display apparatus of claim 1, wherein an installation hole that meets a VESA standard is provided on a rear surface of the main display device, and the support device is installed through the installation hole. 11. The method of claim 10, wherein the rear surface of the main display device is provided with an installation bracket coupled through the installation hole, the installation bracket is provided with a shaft hole for supporting the support member to be rotatable relative to the main display device Dual display device, characterized in that. 12. The method of claim 11, wherein the mounting bracket has a first pivot limiting jaw on both sides of the shaft hole, the support device is made to limit the rotation range of the support device by contact with the first pivot limit jaw Dual display device characterized in that it comprises a two-turn limit jaw. The display apparatus of claim 1, wherein the support apparatus is provided on a support member connecting the main display apparatus and the sub display apparatus, and installed on the main display apparatus or the sub display apparatus, and spaced apart from the main display apparatus and the sub display apparatus. Dual display device comprising a slide unit for guiding the retraction movement of the support member to adjust the. The dual display apparatus of claim 13, wherein the slide unit is rotatably coupled to the main display apparatus or the sub display apparatus. The dual display apparatus of claim 14, wherein the support member is rotatably coupled to the main display apparatus or the sub display apparatus. The dual display apparatus of claim 13, wherein the slide unit comprises a guide roller for guiding the advancing and retracting motion of the support member. The dual display apparatus according to claim 13, wherein the support member is provided with a rack along a length direction, and the slide unit has a pinion which rotates in engagement with the rack. The method of claim 13, wherein the support member is provided with a guide groove provided in the longitudinal direction, the slide unit is coupled to the guide groove characterized in that it comprises a slide projection for limiting the movement range of the support member Dual display unit. The dual display apparatus of claim 13, wherein the support member comprises a hinge portion such that the auxiliary display apparatus is tilted in the front-rear direction. The apparatus of claim 13, wherein the main display device has at least one first pivotal limit on its rear surface, and the support device is configured to limit the pivot range of the supporter by contact with the first pivotal limit. Dual display device comprising a second turning limit for. A space between the primary display device and the secondary display device, the interval between the primary display device and the secondary display device can be adjusted, and the secondary display device can be moved to the upper and both sides of the primary display device. Support device, characterized in that rotatably installed on the back. 22. The support device of claim 21, wherein the support device is rotatably connected to the auxiliary display device such that the auxiliary display device can be arranged horizontally and vertically. The display apparatus of claim 21, wherein the support apparatus includes a first support member and a second support member respectively installed on the main display apparatus and the auxiliary display apparatus, and the first support member and the second support member are the main display apparatus. And a sliding movement coupled to the secondary display device to adjust a distance therebetween. 24. The support apparatus of claim 23, wherein the first support member comprises a guide rail for guiding a slide movement of the second support member. 25. The support apparatus according to claim 24, wherein a guide member for guiding the slide movement of the second support member is provided inside the guide rail. The support apparatus of claim 23, wherein the second support member comprises a hinge portion such that the auxiliary display device can be tilted in the front-rear direction.

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