WO2021182682A1

WO2021182682A1 - Machining apparatus and method for machining frame by using same

Info

Publication number: WO2021182682A1
Application number: PCT/KR2020/008289
Authority: WO
Inventors: 김경중; 김명길; 서문규; 이용순
Original assignee: 삼성전자주식회사
Priority date: 2020-03-09
Filing date: 2020-06-25
Publication date: 2021-09-16
Also published as: KR20210113750A

Abstract

In a machining apparatus and a method for machining a frame by using same according to the present invention, the machining apparatus comprises a plurality of height adjustment devices which are disposed under the corners of the frame, respectively, so as to adjust the height of the frame.

Description

Processing device and method of processing frame using the same

The present disclosure relates to a processing apparatus and a processing method of a frame using the same.

A display device is a device that converts electrical information into visual information and displays it. The display device is composed of a light-emitting display panel that emits light by itself, such as an LED panel (Light Emitting Diode Panel), or a light-receiving display panel that cannot emit light by itself, such as a liquid crystal panel, and must receive light from a backlight unit. can be configured.

When producing a large-sized display device, it is possible to utilize a modular display technology for producing a large-sized screen by continuously tiling a small-sized display panel up, down, left and right. Furthermore, it is possible to provide a plurality of display modules formed by tiling a display panel having a small size as described above, and connect them to provide a screen having a larger size.

However, the plurality of frames on which the plurality of display panels are mounted may be slightly bent during the manufacturing process. The plurality of frames may have different degrees of warping, and accordingly, a step may be generated between the display panels.

One aspect of the present disclosure provides a processing apparatus capable of precisely processing a frame to reduce a step difference between display panels seated on the frame.

In addition, there is provided a processing apparatus capable of minimizing deformation of the frame due to clamping during flat processing of the frame.

The processing apparatus according to the spirit of the present invention, in the frame manufacturing processing apparatus on which the display panel is seated, is located under each of the corners of the frame, including a plurality of height adjustment devices for adjusting the height of the frame do.

Each of the height adjustment devices, the spiral direction of the screw thread is opposite to each other, and a bolt including a first screw and a second screw provided on the upper and lower sides, respectively, supporting the corner portion of the frame, and coupled with the first screw, and a nut having a thread corresponding to the thread of the first screw and a fixing bracket having a thread corresponding to the thread of the second screw and coupled to the second screw.

When the bolt is rotated and moved in an upper or lower direction, the nut is characterized in that it moves in a direction opposite to that of the bolt.

The frame may be equipped with a plurality of display panels.

The first screw may have a first pitch, and the second screw may have a second pitch smaller than the first pitch.

When the bolt is rotated by one rotation, the edge of the frame may move by a difference value between the first pitch and the second pitch.

The difference between the first pitch and the second pitch is less than 0.1mm processing apparatus.

By controlling the rotation amount of the bolt, the height of the frame can be adjusted.

The bolt may rotate in a first direction to move upward, and rotate in a second direction to move downward.

The first direction may be a counterclockwise direction, and the second direction may be a clockwise direction.

The frame may further include a plurality of matrix units positioned at lower portions between adjacent corners among the corners of the frame to support the frame.

Each of the matrix units may include a plurality of protruding pins provided to be lowered by the weight of the frame and an elastic member elastically supporting the plurality of protruding pins under the plurality of protruding pins.

The lower surface of the frame and the ends of the plurality of protruding pins may be in point contact.

It may further include a protrusion pin locking device for fixing the protrusion pin when the protrusion pin is lowered.

The frame may further include a plurality of clamps for pressing a portion corresponding to each of the plurality of protruding pins.

It may further include a clamp control device for controlling the operation of the clamp.

It may further include a milling machine for cutting the front surface of the frame.

In the frame processing method on which the display panel is seated, the frame processing method using the processing apparatus according to another aspect of the present invention described above includes seating the frame on a plurality of matrix units and a plurality of height adjusting devices, and fixing the matrix units, fixing the frame through a clamp, controlling at least one of the height adjusting devices to adjust the height of the frame, and cutting the front surface of the frame.

After cutting the front surface of the frame, it may further include releasing the fixing of the clamp.

The matrix unit may support the frame so that the frame maintains its shape.

The height of at least one of the corners of the frame may be adjusted so that the heights of the corners of the frame are the same.

According to the above-described spirit of the present invention, it is possible to reduce a step difference between the display panels seated on the frame by precisely performing an operation for flattening the frame.

In addition, since the degree of bending of the frame is precisely corrected, the processing quality of the frame can be improved.

1 is a perspective view showing a display module;

FIG. 2 is an exploded perspective view illustrating the display module shown in FIG. 1 ;

Figure 3 is a perspective view showing a processing apparatus according to an embodiment of the present invention.

Figure 4 is a perspective view showing a state in which the frame is seated on the processing apparatus of Figure 3;

Figure 5 is a perspective view showing the frame of Figure 4;

Figure 6 is a perspective view showing a matrix unit of the processing apparatus of Figure 3;

Figure 7 is a perspective view showing a height adjustment device of the processing apparatus of Figure 3;

Figure 8 is a perspective view showing the bolt of the height adjustment device of Figure 7;

9 is a flowchart illustrating a method of processing a frame using the processing apparatus of FIG. 3 .

10A to 10C are process diagrams illustrating a method of processing the frame of FIG. 9 .

The configuration shown in the embodiments and drawings described in this specification is only a preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings of the present specification at the time of filing of the present application.

In addition, the same reference numbers or reference numerals in each drawing in the present specification indicate parts or components that perform substantially the same functions.

In addition, the terms used herein are used to describe the embodiments, and are not intended to limit and/or limit the disclosed invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It does not preclude the possibility of the presence or addition of figures, numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms including an ordinal number such as "first", "second", etc. used herein may be used to describe various elements, but the elements are not limited by the terms, and the terms are It is used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term “and/or” includes a combination of a plurality of related listed items or any of a plurality of related listed items.

Hereinafter, an embodiment will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a display module, and FIG. 2 is an exploded perspective view showing the display module shown in FIG. 1 .

1 and 2, the display device 1 is a device that displays information, data, data, etc. in characters, figures, graphs, images, etc. can The display device 1 may be installed on an indoor or outdoor ground by a stand (not shown) or may be installed on a wall through a wall mount (not shown).

The display device 1 may include a plurality of display modules 10 and a connection member 50 connecting the plurality of display modules 10 to each other. In the present disclosure, the display device 1 is composed of three display modules 10a to 10c, but is not limited thereto, and the number of display modules 10 is not limited.

The plurality of display modules 10 may be continuously connected to each other in the left and right directions. The plurality of display modules 10 may be connected to each other in parallel, or may be connected to be curved in a concave shape toward the front when viewed from the top of the display device 1 as shown in FIG. 1 . Alternatively, the plurality of display modules 10 may be connected to be curved in a convex shape toward the front when viewed from above of the display device 1 , or may be connected to alternately form a concave shape and a convex shape.

That is, the screen of the display module 10 itself is in a flat shape, but when the plurality of display modules 10 are connected, an angle between the plurality of display modules 10 is adjusted to realize the display device 1 having a curved screen. have.

The display module 10 may include at least one display panel 30 and a frame 100 in which at least one display panel 30 is installed. In the present disclosure, in the display module 10, six

display panels

30a, 30b, 30c, 30d, 30e, 30f are configured in a 2 * 3 matrix arrangement, but the number or arrangement method of the display panel 30 is limited. none. Each display panel 30 may be independently installed or separated from the frame 100 .

As described above, by installing the plurality of display panels 30 on the frame 100 as if tiled in a matrix form front, back, left and right, a large screen size can be realized using the display panel 30 having a small screen size. In addition, by providing a plurality of display modules 10 including a plurality of display panels 30 and connecting them with the connecting member 50 as described above, a screen having a larger size may be realized.

The display panel 30 may include a plurality of light sources 32 and a substrate 31 on which the plurality of light sources 32 are mounted. The plurality of light sources 32 may be arranged at regular intervals from each other. An installation member 34 for installing the display panel 30 to the frame 100 may be provided on the rear surface of the display panel 30 .

The frame 100 may include a frame body 101 . The frame body 101 may be provided to support the plurality of display panels 30 . The frame body 101 may be provided to correspond to the size and/or shape in which the plurality of display panels 30 are arranged.

The frame 100 may include a panel mounting unit 110 . The panel mounting part 110 may be formed on the front surface of the frame body 101 . The panel mounting part 110 may be a protruding portion of the front surface of the frame body 101 . The panel mounting part 110 may be formed to support the edge of the display panel 30 .

The display panel 30 may be installed in front of the panel mounting unit 110 . An installation groove 102 into which the installation member 34 of the display panel 30 is inserted may be formed in the panel seat 110 . The installation groove 102 may be formed to penetrate the frame body 101 along the front and rear. The installation member 34 may be firmly fixed by a fixing member (not shown) after being inserted into the installation groove 102 . The fixing member may include a magnet.

Figure 3 is a perspective view showing a processing apparatus according to an embodiment of the present invention, Figure 4 is a perspective view showing a state in which the frame is seated on the processing apparatus of Figure 3, Figure 5 is a view showing the frame of Figure 4 It is a perspective view, Figure 6 is a perspective view showing the matrix unit of the processing apparatus of Figure 3, Figure 7 is a perspective view showing the height adjustment device of the processing apparatus of Figure 3, Figure 8 is the bolt of the height adjustment device of Figure 7 It is a perspective view shown, FIG. 9 is a flowchart illustrating a method of processing a frame using the processing apparatus of FIG. 3 , and FIGS. 10A to 10C are process diagrams illustrating a method of processing the frame of FIG. 9 .

Hereinafter, with reference to the drawings, a processing apparatus according to the present disclosure and a processing method of a frame using the processing apparatus will be simultaneously described.

In general, in order to stably mount the display panel to the curved frame, the frame may be flattened by applying a physical force to the curved frame. However, the frame maintains a bent state with a predetermined curvature due to a spring back phenomenon even after a flattening operation.

After the frame 100 of the display device 1 according to an embodiment of the present invention undergoes a planarization operation, it is possible to prevent the panel seat 110 from being bent due to a springback phenomenon.

The frame 100 may be subjected to a planarization operation in the processing apparatus 200 . In other words, the frame 100 may be moved to the processing apparatus 200 for a flattening operation and seated on the processing apparatus 200 .

3 to 9 , the processing apparatus 200 includes a plurality of matrix units 300 , a clamp 400 , and a plurality of height adjustment devices 500 .

Each of the height adjustment devices 500 corresponds to the corner portion 120 of the frame 100 so as to support the lower portion of each of the corner portions 120 of the frame 100 as shown in FIGS. 3 to 5 . provided in location.

The frame 100 includes a first corner 121 , a second corner 122 , a third corner 123 and a fourth corner 124 so that the upper surface is provided in a rectangular shape, and height adjustment devices 500 . ) is provided under each of the first to

fourth corners

121, 122, 123, 124, so that the height of each of the first to

fourth corners

121, 122, 123, 124 can be adjusted, The first to fourth

height adjustment devices

501 , 502 , 503 , and 504 may be provided.

Each of the matrix units 300 is positioned at a lower portion between the corner portions 120 adjacent to each other among the corner portions 120 of the frame 100 to support the frame 100 . The matrix units 300 may be provided as first to

fourth matrix units

301 , 302 , 303 , and 304 to support the frame 100 .

That is, the frame 100 is processed while seated on the matrix units 300 and the height adjustment devices 500 as shown in FIGS. 9 and 10A ( S100 ). In this case, the frame 100 may be in a bent state as shown.

Each of the matrix units 300 includes a plurality of protruding pins 310 provided to descend by the weight of the frame 100 as shown in FIG. 6 , and elastically supporting the pins at the bottom of the protruding pins 310 . and an elastic member 320 .

When the frame 100 is seated on the matrix units 300 , pressure is applied to at least one of the plurality of protrusion pins 310 by the weight of the frame 100 , and accordingly the plurality of protrusions to which the pressure is applied. At least one of the pins 310 may be moved downward.

In this case, a plurality of elastic members may be provided to elastically support each of the plurality of protruding pins 310 to elastically support each of the plurality of protruding pins 310 . The elastic member may include a spring.

The plurality of protruding pins 310 may be elastically supported by an elastic member and move downward when the frame 100 is seated thereon, so that the frame 100 may be seated while maintaining its shape. That is, when the frame 100 is in a bent state as shown in FIG. 10A , the state may be maintained and the frame 100 may be seated on the matrix units 300 .

On the other hand, the ends of the plurality of protruding pins 310 are provided in a rounded shape, so that when the frame 100 is seated on the matrix units 300 , the lower surface of the frame 100 has a plurality of protruding pins ( 310) may be in point contact with the end. Thus, when the frame 100 is seated on the matrix units 300 , the plurality of protrusion pins 310 can be in minimal contact with each other, and the shape can be more easily maintained and seated.

Referring to FIG. 10B , when the frame 100 is supported so that the frame 100 maintains its shape while the plurality of protruding pins 310 are moved downward, the plurality of protruding pins 310 maintain a moved downward state. The matrix unit 300 is fixed to do so (S200). Thus, the frame 100 can be stably seated on the plurality of protruding pins 310 while maintaining the shape.

The protrusion pin locking device 600 may control the plurality of protrusion pins 310 to maintain the state in which the plurality of protrusion pins 310 move downward, and conversely, pressure is applied to the plurality of protrusion pins 310 . When not applied, the fixing of the plurality of protruding pins 310 may be released so that the plurality of protruding pins 310 move upward again.

After fixing the matrix unit 300 so that the plurality of protruding pins 310 maintain a lowered state by the weight of the frame 100 , the frame 100 is then fixed through the clamp 400 ( S300 ). ).

The clamp 400 may fix the frame 100 by pressing the frame 100 when the frame 100 is seated on the matrix units 300 . A plurality of clamps 400 may be provided at positions corresponding to each of the matrix units 300 . That is, when the frame 100 is seated on the matrix units 300 , a portion corresponding to each of the matrix units 300 may be pressed and fixed on the upper surface of the frame 100 . The clamp 400 may be provided as a hydraulic clamp 400 .

The clamp 400 may be provided to move in the vertical direction and pass through the opening 105 of the frame 100 . When the frame 100 is pressed, the clamp 400 passes through the opening 105 of the frame 100 and then rotates in a direction perpendicular to the extension direction of the opening 105 of the frame 100 , ) may be pressed in the direction indicated by the arrow in FIG. 10B .

The clamp control device 700 may control the movement and rotation of the clamp 400 .

When the clamp 400 is fixed, the plurality of height adjusting devices 500 adjust the position of the corner portion 120 of the frame 100 (S400).

7 and 8 , each of the plurality of height adjusting devices 500 includes a bolt 510 , a nut 520 , and a fixing bracket 530 .

The bolt 510 includes a first screw 511 and a second screw 512 in which the helical directions of the threads are opposite to each other. The first screw 511 is provided on the upper side of the bolt 510 , and the second screw 512 is provided on the lower side of the bolt 510 . If any one of the first screw 511 and the second screw 512 is formed as a right-handed helix, the screw of the other screw member may be formed as a left-handed helix. have.

The nut 520 may be provided on the uppermost side of the height adjusting device 500 to support the edge portion 120 of the frame 100 . That is, the nut 520 may rotate while supporting the corner portion 120 of the frame 100 to adjust the height of the corner portion. The nut 520 is coupled to the first screw 511 . The nut 520 includes a thread corresponding to the thread of the first screw 511 therein.

The fixing bracket 530 is provided to be fixed in position and is coupled to the second screw 512 . The fixing bracket 530 includes a thread corresponding to the second screw 512 therein.

Since the position of the fixing bracket 530 is fixed, when the bolt 510 is rotated in the first direction, the bolt 510 is moved in the upper direction, and at the same time, the nut 520 can be moved in the lower direction. have. Conversely, when the bolt 510 is rotated in the second direction, the bolt 510 may be moved in the lower direction and the nut 520 may be moved in the upper direction. In this case, the first direction may be a counterclockwise direction and the second direction may be a clockwise direction. However, as any one of the first screw 511 and the second screw 512 is formed as a right spiral and the other is formed as a left spiral, the first direction is clockwise and the second direction is counterclockwise. may be

In other words, as described above, since the first and

second screws

511 and 512 include threads formed in opposite directions to each other, when the bolt 510 is rotated in a specific direction, the bolt 510 and the nut 520 . can be moved in opposite directions.

Furthermore, the first screw 511 and the second screw 512 may have different pitches of threads. The first screw 511 may have a first pitch P1 , and the second screw 512 may have a second pitch P2 smaller than the first pitch P1 .

When the bolt 510 rotates once in the first direction, the nut 520 may move upward by the value of the first pitch P1, and the bolt 510 moves downward by the value of the second pitch P2. can be moved Thus, the nut 520 may be moved upward by the difference value between the first pitch P1 and the second pitch P2 as a whole during one rotation of the bolt 510 . Conversely, when the bolt 510 rotates once in the second direction, the nut 520 may move downward by the value of the first pitch P1, and the bolt 510 may move downward by the value of the second pitch P2. can be moved upwards. In this case, the height adjusting device 500 may be moved downward by a difference value between the first pitch P1 and the second pitch P2 during one rotation of the bolt 510 .

For example, the difference between the first pitch P1 and the second pitch P2 may be 0.1 mm. Therefore, for every one rotation of the bolt 510, the height adjusting device 500 is moved upward or downward by 0.1 mm, so that the height of the edge of the frame 100 can be finely adjusted by 0.1 mm. In this case, the first pitch P1 may be 0.7 mm, and the second pitch P2 may be 0.6 mm.

Alternatively, the difference between the first pitch P1 and the second pitch P2 may be less than 0.1 mm, and the height of the corner portion of the frame 100 may be more finely adjusted.

Furthermore, when the bolt 510 is rotated by 1/2, the height adjusting device 500 can adjust the height of the corner portion of the frame 100 by 0.05 mm, and when the bolt 510 is rotated by 1/4, the frame It is possible to adjust the height of the corner portion of (100) by 0.025mm. As such, the present disclosure can selectively adjust the amount of change in the height of the corner portion 120 of the frame 100 by controlling the rotation amount of the bolt 510 .

As described above, since the height adjusting device 500 can adjust the corner portion 120 of the frame 100 , the position of the frame 100 is adjusted by operating one or more height adjusting devices among the plurality of height adjusting devices 500 . It can be precisely adjusted, and in particular, the position of the frame 100 can be finely aligned to improve the flatness of the frame 100 .

For example, in order to improve the flatness of the frame 100 in a cutting process to be described later, the height adjusting device 500 may include at least one of the corners of the frame 100 so that the heights of the corners of the frame 100 are the same. One height can be controlled. Thus, in the case of cutting the upper surface (front) of the frame 100 as shown in FIG. 10C (S500), each corner of the frame 100 is aligned at a position where it is easy to cut, so that the frame 100 is flat. It is possible to cut the frame 100 so that the degree is further improved. In this case, the upper surface of the frame 100 may be cut to approximate the dotted line through the milling machine.

After cutting the upper surface of the frame 100, the clamp 400 is released (S600). At this time, even if the fixing by the clamp 400 is removed, the springback phenomenon of the frame 100 does not occur, and accordingly, the flat frame 100 can be processed, so when the display panels are mounted on the frame 100 . It is possible to minimize the step difference between the display panels.

On the other hand, although it has been previously described that a plurality of display panels are mounted on the frame 100 , a large metal panel can be mounted on the frame 100 , and thus the processing apparatus 200 according to the present disclosure is applied to processing of a large panel. Of course you can.

The scope of the present invention is not limited to the specific embodiments described above. Various other embodiments that can be modified or modified by those of ordinary skill in the art within the scope that do not deviate from the gist of the present invention specified in the claims will also fall within the scope of the present invention.

Claims

In the frame manufacturing and processing apparatus on which the display panel is seated,

A plurality of height adjusting devices positioned under each of the corners of the frame to adjust the height of the frame,

Each of the height adjustment devices,

Bolts having first and second screws provided on the upper and lower sides, respectively, in which the spiral directions of the threads are opposite to each other;

a nut supporting a corner portion of the frame, coupled to the first screw, and including a screw thread corresponding to the screw thread of the first screw; and

a fixing bracket provided to be fixed in position and coupled to the second screw, the fixing bracket including a screw thread corresponding to the screw thread of the second screw;

When the bolt rotates and moves in an upper or lower direction, the nut moves in a direction opposite to the bolt.
According to claim 1, wherein the frame,

A processing device on which a plurality of display panels are mounted.
According to claim 1,

The first screw has a first pitch, and the second screw has a second pitch smaller than the first pitch.
4. The method of claim 3,

When the bolt is rotated by one turn,

The edge portion of the frame, the processing device for moving by the difference value between the first pitch and the second pitch.
5. The method of claim 4,

The difference between the first pitch and the second pitch is less than 0.1mm processing apparatus.
5. The method of claim 4,

A processing apparatus for controlling the rotation amount of the bolt to adjust the height of the frame.
According to claim 1,

The bolt rotates in a first direction to move in an upper direction, and rotates in a second direction to move in a lower direction.
8. The method of claim 7,

The first direction is a counterclockwise direction, and the second direction is a clockwise direction.
According to claim 1,

The processing apparatus further comprising a plurality of matrix units positioned at each lower portion between the adjacent corners of the corners of the frame to support the frame.
10. The method of claim 9, wherein each of the matrix units,

a plurality of protruding pins provided to be lowered by the weight of the frame; and

A processing apparatus including an elastic member for elastically supporting the plurality of projecting pins under the plurality of projecting pins.
11. The method of claim 10,

A processing device in which the lower surface of the frame and the ends of the plurality of protruding pins are in point contact.
12. The method of claim 11,

Processing apparatus further comprising a protruding pin locking device for fixing the protruding pin when the protruding pin is lowered.
10. The method of claim 9,

Processing apparatus further comprising a plurality of clamps for pressing a portion corresponding to each of the plurality of protruding pins in the frame.
14. The method of claim 13,

Processing apparatus further comprising a clamp control device for controlling the operation of the clamp.
According to claim 1,

Processing apparatus further comprising a milling machine for cutting the front surface of the frame.