KR102232290B1 - Foldable Apparatus for Flexible Display with Vision Inspection Apparatus - Google Patents

Abstract

The flexible display folding device equipped with a full inspection device is equipped with one or more flexible displays, respectively, and then the camera unit moves linearly while repeatedly performing a folding test such as folding and unfolding half of the flexible display from 0 degrees to 90 degrees, which is a horizontal plane. In the meantime, a power control signal is transmitted to the camera unit according to a preset capture position and a preset number of camera captures, so that a two-dimensional image of the flexible display can be photographed to inspect cracks.

Description

Foldable Apparatus for Flexible Display with Vision Inspection Apparatus}

The present invention relates to a display folding device, and in particular, after each mounting of one or more flexible displays, the camera unit moves linearly while repeatedly performing a folding test such as folding and unfolding half of the flexible display from 0 degrees to 90 degrees, which is a horizontal plane. It relates to a flexible display folding apparatus having a vision inspection device for inspecting cracks by photographing a two-dimensional image of the flexible display by transmitting a power control signal to a camera unit according to a preset capture position and a preset number of camera captures.

The flexible display is a display manufactured using a thin and flexible substrate that can be bent, bent, or rolled within a few centimeters like paper without loss of the existing display characteristics. Unlike conventional rigid displays, it is light, thin and has strong impact resistance, and is bent. You can do it freely.

When manufacturing a flexible display, a folding test is performed to determine how much bending can be performed.

In the current durability test of a flexible display, when a preset number of folding is reached using a folding device, the user directly checks it with the naked eye, or moves the place and mounts it on a microscope to check for cracks in the display.

In order to check the time of crack occurrence of the flexible display, after a brief pause during operation of the device, the user directly checks with the naked eye to see if a crack has occurred, and the device must be operated again, so only roughly guessing the time when the crack occurred, and accurately grasp it. It is difficult to do, and there is an inconvenience in that the user continuously checks the device while operating the device.

The durability test of the flexible display is when moving the sample to another place to check for cracks after reaching the preset number of folding, damage to the sample may occur while moving the sample place, and it takes a lot of time to check the crack. There is a problem.

Korean Patent Application Publication No. 10-2011-0128988

In order to solve such a problem, according to the present invention, the camera unit moves linearly while repeatedly performing a folding test such as folding and unfolding half of the flexible display from 0° to 90°, which is a horizontal plane, after each mounting of one or more flexible displays. In addition, it provides a flexible display folding device having a vision inspection device for inspecting cracks by photographing a two-dimensional image of the flexible display by transmitting a power control signal to the camera unit according to a preset capture position and a preset number of camera captures. There is a purpose.

An object of the present invention is to provide a flexible display folding apparatus capable of performing both an In folding test and an Out folding test.

An object of the present invention is to provide a flexible display folding apparatus in which an R value is not changed and a constant rotational center of a display coincides with a position where a display folds, which is one side of an upper surface of a flexible display, on a straight line in a horizontal direction.

A flexible display folding device having a vision inspection device according to a feature of the present invention for achieving the above object,

After mounting one or more flexible displays 10 by half, folding with a control unit 640 repeatedly performs a folding test of folding and unfolding half of the flexible display 10 from 0 degrees to 90 degrees, which is a horizontal plane. Device 100; And

A moving block part 614 of a certain shape formed at a certain distance apart from one side of the folding device 100, a ball nut part 613 coupled to the moving block part 614, and the ball nut part ( 613) and the movable block part 614 is formed long in the longitudinal direction so as to integrally penetrate the screw 615 having a linear shape, and a first fixed stopper 616 coupled to one end of the screw 615 And, a second fixed stopper 617 coupled to the other end of the screw 615, a moving member 610 coupled with a driving motor 619 to one end of the first fixed stopper 616, and the movement The camera pillar portion 621 of a predetermined height from the bottom surface is vertically erected by being coupled to the member 610, and the horizontal bar 622 bent at a right angle at the upper end of the camera pillar portion 621 is elongated in the longitudinal direction. And forming a camera holder 624 at one end portion of the horizontal bar 622, and coupling a camera unit 625 to the camera holder 624 and a lens 626 at the bottom thereof ( 620) including a vision inspection device,

The control unit 640 counts the number of times of folding the display 10 is folded and unfolded, and when the counted number of folding is compared with a preset number of folding, the control unit 640 controls the driving motor 619 to control the camera unit. Characterized in that, while moving linearly, a power control signal is transmitted to the camera unit 625 according to a preset capture position and a preset number of camera captures to take a two-dimensional image of the flexible display to inspect cracks. do.

According to the above-described configuration, the present invention provides a two-dimensional image of the flexible display while repeatedly performing a folding test of folding and unfolding half of the flexible display from 0 degrees to 90 degrees, after each mounting of one or more flexible displays. It has the effect of inspecting cracks in real time by shooting.

According to the present invention, when the folding desk of the flexible display is folded and unfolded at the same time, when the display is folded at 90 degrees, the R value, which is the radius of the folded portion, does not change during the test.

The present invention has an effect of facilitating a flatness adjustment operation of aligning a horizontal plane between plates on which a display is mounted by using a flat jig and a leaf spring module in a folding apparatus for a flexible display.

The present invention has an effect of performing both an In folding test and an Out folding test in one folding device.

1 is a perspective view showing the configuration of a flexible display folding device for flattening a plate according to an embodiment of the present invention.
2 is a view showing a view from above of a folding device according to an embodiment of the present invention.
3 is a perspective view showing the configuration of a main base plate of a flexible display folding device for adjusting the flatness of a plate according to an embodiment of the present invention.
4 is a perspective view showing a state in which a main base plate and a plate are combined in a flexible display folding apparatus according to an embodiment of the present invention.
5 is a perspective view showing a state in which a main base plate, a plate, and a jig base plate are combined in a flexible display folding apparatus according to an embodiment of the present invention.
6 is a perspective view showing the configuration of a support-side rotation support in a flexible display folding apparatus according to an embodiment of the present invention.
7 is a perspective view showing the configuration of a motor-side rotation connector in a flexible display folding apparatus according to an embodiment of the present invention.
8 and 9 are views illustrating a combination of a main base plate, a plate, and a jig base plate in a flexible display folding apparatus according to an embodiment of the present invention, as viewed from above.
10 and 11 are views illustrating a combination of a main base plate and a jig plate in a flexible display folding apparatus according to an embodiment of the present invention as viewed from above.
12 is a perspective view showing a configuration of a left R jig and a right R jig in a flexible display folding apparatus according to an embodiment of the present invention.
13 is an exploded perspective view showing a state in which a jig base plate, a jig plate, and a plate spring module are separated in a flexible display folding apparatus according to an embodiment of the present invention.
14 is an exploded perspective view illustrating a combination of a jig base plate, a jig plate, and a plate spring module in a flexible display folding apparatus according to an embodiment of the present invention.
15 is an exploded perspective view showing an exploded view of a leaf spring module in a flexible display folding apparatus according to an embodiment of the present invention.
16 is a view showing a state in which a gap is generated in a groove when a fixing bolt is loosely released in a plate spring module according to an embodiment of the present invention, so that it can be moved up, down, left and right.
17 is a view showing a state in which the leaf spring is bent by applying a force according to the direction in which the fixing bolt is coupled to the leaf spring in the leaf spring module according to the embodiment of the present invention.
18 is a perspective view showing the configuration of a flat jig according to an embodiment of the present invention.
19 is a perspective view showing a state in which a flat jig and a flexible display folding device are separated according to an embodiment of the present invention.
20 is a perspective view showing a state in which a flat jig and a flexible display folding device are combined according to an embodiment of the present invention.
21 is a view showing an enlarged view of a partial area of a flexible display folding apparatus according to an embodiment of the present invention.
22 is a perspective view showing a folding operation in a flexible display folding apparatus according to an embodiment of the present invention.
23 and 24 are conceptual diagrams illustrating a folding operation in a flexible display folding apparatus according to an embodiment of the present invention.
FIG. 25 is a view showing a state where a display folds and a motor rotation center coincide with a folding point in a flexible display folding apparatus according to an exemplary embodiment of the present invention.
26 is a diagram showing a configuration of a motor-side rotation sensor unit in a flexible display folding apparatus according to an embodiment of the present invention.
27 is a conceptual diagram illustrating an out-folding operation in a flexible display folding apparatus according to an embodiment of the present invention.
28 and 29 are diagrams illustrating a method in which a vision inspection device is combined with a flexible display folding device according to an embodiment of the present invention.
30 is a perspective view showing the configuration of a vision inspection apparatus according to an embodiment of the present invention.
31 and 32 are views showing a side view of a vision inspection apparatus according to an embodiment of the present invention.
33 and 34 are perspective views showing a view from the rear of a vision inspection apparatus according to an embodiment of the present invention.
35 and 36 are views showing an example of a display unit according to an embodiment of the present invention.
37 is a block diagram schematically illustrating an internal configuration of a vision inspection apparatus according to an embodiment of the present invention.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

The flexible display folding apparatus 100 according to an embodiment of the present invention is a device for testing the folding of various types of displays such as paper, film, LCD, and flexible display. In the present invention, for convenience of explanation, the folding test of the flexible display It is illustrated by performing.

The flexible display folding apparatus 100 can test samples of various sizes and thicknesses without changing the position of the folding part, and when folded and unfolded, the user can perform a desired test with various angles and time settings. .

1 is a perspective view showing the configuration of a flexible display folding apparatus for adjusting the flatness of a plate according to an embodiment of the present invention, FIG. 2 is a view showing a view from above of a folding apparatus according to an embodiment of the present invention, and FIG. Is a perspective view showing the configuration of a main base plate of a flexible display folding device for flattening a plate according to an embodiment of the present invention.

The flexible display folding apparatus 100 according to an embodiment of the present invention has a rectangular parallelepiped shape and has a predetermined thickness and has a predetermined length of a main base plate 101, a two-way screw member 150, a first plate 160, a second plate ( 170), a first jig base plate 220, a second jig base plate 230, a first jig plate 260, and a second jig plate 270.

On the upper surface of the main base plate 101 of the present invention, a two-way screw member 150 is formed in a central portion, and a pair of LM guide members 110 are spaced apart a predetermined distance in both directions based on the two-way screw member 150. , 120, 130, 140) are formed, respectively.

A pair of LM guide members 110, 120, 130, 140 have a first left LM guide 110 and a second right LM guide 120 on one side of the upper surface of the main base plate 101 as a pair. The first right LM guide 130 and the second left LM guide 140 are formed to be spaced apart from each other in a pair on the other side of the upper surface of the main base plate 101.

The first left LM guide 110 is coupled to the first left guide rail 112 installed on the upper surface of the main base plate 101, and the first left guide rail 112 It includes a first left block 111 installed to be movable on the guide rail 112.

The first right LM guide 130 is coupled to the first right guide rail 132 installed on the upper surface of the main base plate 101 and the first right guide rail 132 to It includes a first right block 131 installed to be movable on the guide rail 132.

The second right LM guide 120 is coupled to the second right guide rail 122 installed on the upper surface of the main base plate 101 and the second right guide rail 122 to the second right It includes a second right block 121 installed to be movable on the guide rail 122.

The second left LM guide 140 is coupled to the second left guide rail 142 installed on the upper surface of the main base plate 101, and the second left guide rail 142 It includes a second left block 141 that is movably installed on the guide rail 142.

The bidirectional screw member 150 is formed with a bidirectional ball screw 151 in the longitudinal direction at a central portion of the upper surface of the main base plate 101. The two-way ball screw 151 has opposite threads on the left and right sides at the intermediate point of the ball screw 151a, and the first moving part 151b and the second moving part 151c are respectively penetrated and coupled to the opposite threads. The first moving part 151b and the second moving part 151c are inserted into and coupled to the inside of the hexahedral first processed product bundle part 152 and the second processed product bundle part 153. Accordingly, the first moving part 151b and the second moving part 151c move in opposite directions.

Both ends of the bi-directional ball screw 151 are provided with a first bearing support 154 having the first bearing 154a inserted into one side and a second bearing 155a having the other side inserted therethrough. The support 155 is erected.

One end of the bidirectional ball screw 151 passes through the second bearing support 155 and is coupled to one side of the coupling 156, and the other side of the coupling 156 is coupled with a rotating handle shaft 156a of a predetermined length. do.

The rotating handle shaft 156a passes through the third bearing support 157 having one side coupled to the coupling 156 and the other side having the third bearing 157a.

One end of the rotary handle shaft 156a passing through the third bearing support 157 is coupled to the rotary handle 158. The rotating handle 158 is coupled to a fixing screw 159 that is a fixing device.

The main base plate 101 forms a side base plate 102 extending outward from one edge surface, and a third bearing support 157 and a rotating handle shaft 156a on the upper surface of the side base plate 102 Is mounted.

The first jig base plate 220 and the second jig base plate 230 are spaced apart from each other by a predetermined distance, face each other in a horizontal plane, and have a certain width and length.

The first jig plate 260 and the second jig plate 270 are mounted on the top surface of the first jig base plate 220 and the top surface of the second jig base plate 230, respectively, and are spaced apart from each other by a predetermined distance, They face each other in a form forming a horizontal plane, and are positioned halfway when the flexible display 10 is mounted on each upper surface.

The flexible display 10 is mounted on the upper surface of the first jig plate 260 and the upper surface of the second jig plate 270 so as to be divided into two portions.

4 is a perspective view showing a state in which a main base plate and a plate are combined in a flexible display folding apparatus according to an embodiment of the present invention.

The width of the main base plate 101 is defined as a vertical width in a direction in which the two-way screw member 150 is installed, and a direction orthogonal to the two-way screw member 150 is defined as a horizontal width.

On the upper surface of the main base plate 101, a rod-shaped first support 103 and a second support 104 are coupled to both ends in the transverse direction.

In the main base plate 101, a first plate 160 and a second plate 170 divided into two in a flat shape are coupled to the upper portion.

The first plate 160 and the second plate 170 are spaced apart from each other by a certain distance, have a certain width and length facing each other in a form forming a horizontal plane, and are combined with each other in a concave-convex manner to form a single plate or spaced apart from each other. And can be separated into two.

In the first plate 160 and the second plate 170, one end of the first plate 160 is formed longer than one end of the second plate 170, and opposite ends of the first plate 160 It is formed shorter than the opposite end of the second plate 170.

The first plate 160 and the second plate 170 are separated in the vertical width direction of the main base plate 101 and moved away from each other, or moved in a direction closer to each other to be combined into a single plate. do.

When the first plate 160 and the second plate 170 are combined with each other in a concave-convex manner, they have the same size as the main base plate 101 in a single plate shape, and cover the upper part of the main base plate 101 can do.

The first plate 160 and the second plate 170 form at least one concave groove and a convex protruding convex portion.

The first plate 160 includes a first left convex portion 161 protruding convexly, a first left concave portion 162 connected from the first left convex portion 161 to be concave, and the first A first intermediate convex portion 163 connected from the left concave portion 162 and protruding convexly by a predetermined length, and a first right convex portion connected from one end of the first intermediate convex portion 163 to convexly protrude (164), a first right concave portion 165 connected from the first right convex portion 164 to be concave, and a second support member 104 connected from the first right concave portion 165 A first seating portion 166 having a predetermined width is formed on the upper surface.

The first plate 160 is an upper surface of the second support 104, an upper surface of the first right block 131, an upper surface of the second processed product bundle part 153, and an upper surface of the first left block 111 Is bound to

The second plate 170 includes a second left convex portion 171 protruding convexly, a second left concave portion 172 connected from the second left convex portion 171 to be concave, and the second A second intermediate convex portion 173 connected from the left concave portion 172 and protruding convexly by a predetermined length, and a second right convex portion connected from one end of the second intermediate convex portion 173 and protruding convexly (174), a second right concave portion 175 connected from the second right convex portion 174 to be concave, and a second right concave portion 175 connected from the second right concave portion 175 to the first support 103 A second seating portion 176 having a predetermined width to be mounted on the upper surface is formed.

The second plate 170 includes an upper surface of the first support 103, an upper surface of the second right block 121, an upper surface of the first processed product bundle part 152, and an upper surface of the second left block 141. Is bound to

The second plate 170 is coupled to the upper surface of the second right block 122 of the second right guide rail 121, coupled to the upper surface of the first processed product bundle part 152, and the second left guide It is coupled to the upper surface of the second left block 142 of the rail 141.

When the fixing screw 159 fixing the rotation handle 158 is loosened and the rotation handle 158 is rotated counterclockwise, the first moving part 151b based on the intermediate point 151a of the bidirectional ball screw 151 ) And the second moving part 151c move in a direction away from each other. Accordingly, the second processed product bundle portion 153, the first left block 111, and the first plate 160 coupled to the upper surface of the first right block 131, the first processed product bundle portion 152, and 2 The left block 141 and the second plate 170 coupled to the upper surface of the second right block 121 are separated in a direction away from each other.

When the rotation handle 158 is turned clockwise, the first moving part 151b and the second moving part 151c are moved in a direction closer to each other based on the intermediate point 151a of the bidirectional ball screw 151. Accordingly, the second processed product bundle portion 153, the first left block 111, the first plate 160 coupled to the upper surface of the first right block 131, and the first processed product bundle portion 152 , The second plate 170 coupled to the upper surface of the second left block 141 and the second right block 121 moves in a direction closer to each other.

When the rotation handle 158 is continuously turned clockwise, the first left convex portion 161 of the first plate 160 and the second right concave portion 175 of the second plate 170 are coupled, and the first The first left concave portion 162 of the plate 160 and the second right convex portion 174 of the second plate 170 are coupled, and the first intermediate convex portion 163 of the first plate 160 and the first 2 The first right convex portion 164 of the first plate 160 and the second left concave portion 172 of the second plate 170 are in contact with the second intermediate convex portion 173 of the plate 170. ) Are combined, and the first right concave portion 165 of the first plate 160 and the second left convex portion 171 of the second plate 170 are combined to form a single plate.

The left R jig 240 and the right R jig 250 are sandwiched between the first plate 160 and the second plate 170, and will be described in detail in FIG. 12 below.

5 is a perspective view showing a state in which a main base plate, a plate, and a jig base plate are combined in a flexible display folding apparatus according to an embodiment of the present invention, and FIG. 6 is a support-side rotation support part in a flexible display folding apparatus according to an embodiment of the present invention. Is a perspective view showing the configuration of, and FIG. 7 is a perspective view showing the configuration of a motor-side rotation connection in a flexible display folding apparatus according to an embodiment of the present invention.

The first plate 160 forms a first support-side rotation support part 180 on an upper surface of the first left convex part 161, and a first motor-side rotation connection part 190 on the upper surface of the first seating part 166. ) To form.

The first support-side rotation support part 180 has a first support-side rotation shaft column 181 in the form of'⊥' on the upper surface of the first left convex part 161 is vertically erected and coupled, and the first support-side rotation shaft column ( A through hole 181a is formed at the upper end of the through hole 181a, and the first support-side rotary bearing 182 and the second support-side rotary bearing 183 are coupled to both sides of the through-hole 181a.

The first support-side rotational support part 180 is inserted through a screw-shaped first support-side rotational shaft 184 by inserting a first support-side rotational bearing 182, a through hole 181a, and a second support-side rotational bearing 183, The end portion passing through the second support-side rotation bearing 183 is coupled to the first support-side bearing stop ring 188.

The first support-side rotation shaft 184 couples the head portion 184a to the first support-side rotation elbar 185 of a'b' shape.

The first support-side rotary elbar 185 is from a first support-side support surface 186 coupled to the head portion 184a of the first support-side rotary bearing 182, and a lower end of one side of the first support-side support surface 186. It includes a first support-side rotating bar 187 of a predetermined length extending in a right angle direction.

In the first motor-side rotation connection part 190, a first motor-side rotation shaft column 191 in the form of'⊥' is vertically erected and coupled to the upper surface of the first seating part 166, and the first motor-side rotation shaft A through hole 191a is formed at an upper end of the column 191, and a first motor-side rotation bearing 192 and a second motor-side rotation bearing 193 are coupled to both sides of the through hole 191a.

In the first motor-side rotation connection part 190, a screw-shaped first motor-side rotation shaft 194 inserts a first motor-side rotation bearing 192, a through hole 191a, and a second motor-side rotation bearing 193. And the end portion that has passed through the second motor-side rotary bearing 193 is coupled to the first motor-side bearing stopping ring 196.

The first motor-side rotation shaft 194 couples the head portion 194a to the first motor-side rotation elbar 195 of the'b' shape.

The first motor-side rotary elbar 195 includes a first motor-side support surface 195a coupled to the head portion 194a of the first motor-side rotary bearing 192, and the first motor-side support surface 195a. It includes a first motor-side rotation bar (195b) of a constant length extending in a right angle direction from the lower end of the one side.

The first motor-side rotation shaft 194 includes a first motor-side rotation bearing 192, a through hole 191a, a second motor-side rotation bearing 193, and a central through-hole of the first motor-side rotation sensor unit 197 It penetrates in the horizontal direction and is integrally combined.

The first motor-side rotation sensor unit 197 is sequentially coupled to the first motor connection coupling 198 and the first reduction gear 198a. The first reduction gear 198a is coupled to the first motor 199 providing a driving force.

A first position sensor 225 is installed between the first motor-side rotation shaft column 191 and the first motor-side rotation sensor unit 197 on one side of the upper surface of the first seating part 166. The first position sensor 225 is positioned in a straight line at the center of the lower end of the first motor-side rotation sensor unit 197.

The first jig base plate 220 has a certain width and length, crosses each other vertically and horizontally to form a lattice-shaped frame, and both rims of the lower surface are formed with the upper surface of the first support side rotation bar 187 and the first jig base plate 220. 1 It is mounted on the upper surface of the rotating bar 195b on the motor side and connected using bolts.

The first jig plate 260 on which the half of the flexible display 10 is mounted is fixed to the upper surface of the first jig base plate 220 by pin guides and bolts.

The second plate 170 forms a second support-side rotation support part 200 on the upper surface of the second left convex part 171, and a second motor-side rotation connection part 210 on the upper surface of the second seating part 176. ) To form.

In the second support-side rotation support part 200, a second support-side rotation shaft column 201 in the form of'⊥' is vertically erected and coupled to the upper surface of the second left convex part 171, and the second support-side rotation shaft column ( A through hole 201a is formed at the upper end of the 201), and the first support-side rotary bearing 202 and the second support-side rotary bearing 203 are coupled to both sides of the through-hole 201a.

The second support-side rotary support part 200 is passed through by inserting a screw-shaped second support-side rotary shaft 204 into the first support-side rotary bearing 202, a through hole 201a, and a second support-side rotary bearing 203, The end portion passing through the second support-side rotation bearing 203 is coupled to the second support-side bearing stop ring 208.

The second support-side rotary shaft 204 couples the head portion 204a to the second support-side rotary elbar 205 in the form of “b”.

The second support-side rotary elbar 205 is from a second support-side support surface 206 coupled to the head portion 204a of the first support-side rotary bearing 202 and a lower end of one side of the second support-side support surface 206 It includes a second support-side rotating bar 207 of a predetermined length extending in a right angle direction.

In the second motor-side rotation connection part 210, a second motor-side rotation shaft column 211 in the form of'⊥' is vertically erected and coupled to the upper surface of the second seating part 176, and the second motor-side rotation shaft A through hole 211a is formed at an upper end of the pillar 211, and the first motor-side rotation bearing 212 and the second motor-side rotation bearing 213 are coupled to both sides of the through hole 211a.

In the second motor-side rotation connection part 210, a screw-shaped second motor-side rotation shaft 214 inserts a first motor-side rotation bearing 212, a through hole 211a, and a second motor-side rotation bearing 213. And the end portion passing through the second motor-side rotary bearing 213 is coupled to the second motor-side bearing stopping ring 216.

The second motor-side rotation shaft 214 couples the head portion 214a to the second motor-side rotation elbar 215 of the'b' shape.

The second motor-side rotary elbar 215 includes a second motor-side support surface 215a coupled to the head portion 214a of the first motor-side rotary bearing 212, and the second motor-side support surface 215a. It includes a second motor-side rotation bar (215b) of a constant length extending in the right angle direction from the lower end of the one side.

The second motor-side rotary shaft 214 includes a first motor-side rotary bearing 212, a through hole 211a, a second motor-side rotary bearing 213, and a central through-hole of the second motor-side rotary sensor unit 217 It penetrates in the horizontal direction and is integrally combined.

The second motor-side rotation sensor unit 217 is sequentially coupled to a second motor connection coupling 218 and a second reduction gear 218a. The second reduction gear 218a is coupled to the second motor 219 providing a driving force.

A second position sensor 234 is installed between the second motor-side rotation shaft column 211 and the second motor-side rotation sensor unit 217 on one side of the upper surface of the second seating part 176. The second position sensor 234 is positioned in a straight line at the center of the lower end of the second motor-side rotation sensor unit 217.

The second jig base plate 230 has a certain width and length, is vertically and horizontally intersected to form a grid-shaped frame, and both rims of the lower surface are formed with the upper surface of the second support-side rotating bar 207 and the second jig base plate 230. 2 Mounted on the upper surface of the motor-side rotating bar (215b) and coupled using bolts.

The second jig plate 270 on which the half of the flexible display 10 is mounted is fixed to the upper surface of the second jig base plate 230 by pin guides and bolts.

The control unit 640 transmits the driving signals of the first motor 199 and the second motor 219 to simultaneously fold and unfold both the first plate 160 and the second plate 170 to open the display 10. Repeatedly performing a folding test of folding and unfolding from 0 degrees to 90 degrees, which is a horizontal plane.

8 and 9 are views showing a combination of a main base plate, a plate, and a jig base plate in a flexible display folding apparatus according to an embodiment of the present invention as viewed from above, and FIGS. 10 and 11 are views according to an embodiment of the present invention. This is a view showing the combination of the main base plate and the jig plate in the flexible display folding device as seen from above.

8 and 9, when the rotation handle 158 is rotated counterclockwise, the first moving part 151b and the second moving part 151c move in a direction away from each other, and accordingly, the first moving part 151b and the second moving part 151c move in a direction away from each other. The first plate 160 and the second plate 170 are separated in a direction away from each other.

10 and 11, when the rotation handle 158 is rotated counterclockwise, the first moving part 151b and the second moving part 151c move in a direction away from each other. The first jig base plate 220 formed on the first plate 160 and the second jig base plate 230 formed on the second plate 170 are separated in a direction away from each other.

12 is a perspective view showing a configuration of a left R jig and a right R jig in a flexible display folding apparatus according to an embodiment of the present invention.

The distance 235 between the first plate 160 and the second plate 170 is between the left R jig 240 and the right R jig 250 and the first plate 160 and the second plate 170. It is put in and is determined.

The distance 235 between the first plate 160 and the second plate 170 is between the left R jig 240 and the right R jig 250 and the first plate 160 and the second plate 170. After being fitted in, the rotation handle 158 of the two-way screw member 150 is rotated until it no longer rotates.

In this way, when the distance 235 between the first plate 160 and the second plate 170 is kept constant, the first jig plate 260 and the second jig plate 270 on which the flexible display 10 is mounted The distance (R value) between) can maintain a constant distance interval 235 to prevent distance deviation that may occur for each user.

The left R jig 240 is fitted between the first left convex portion 161 of the first plate 160 and the second right concave portion 175 of the second plate 170. The left R jig 240 has a predetermined thickness 241a that is fitted between the first left convex portion 161 of the first plate 160 and the second right concave portion 175 of the second plate 170. 1 vertical bar 241 and a first horizontal bar 242 mounted on a surface on which a second right concave portion 175, which is an upper surface of the second plate 170, is formed. The first horizontal bar 242 is formed in a'b' shape on the surface where the second right concave portion 175 is formed.

The right R jig 250 is fitted between the first right concave portion 165 of the first plate 160 and the second left convex portion 171 of the second plate 170. The right R jig 250 has a predetermined thickness 251a that is fitted between the first right concave portion 165 of the first plate 160 and the second left convex portion 171 of the second plate 170. 2 and a vertical bar 251 and a second horizontal bar 252 mounted on a surface on which the first right concave portion 165, which is an upper surface of the first plate 160, is formed. The second horizontal bar 252 is formed in a'b' shape on the surface where the first right concave portion 165 is formed.

The gap 235 between the first plate 160 and the second plate 170 is the thickness 241a of the first vertical bar 241 of the left R jig 240 and the second of the right R jig 250. It is determined by the thickness 251a of the vertical bar 251.

13 is an exploded perspective view showing a state in which a jig base plate, a jig plate, and a plate spring module are separated in a flexible display folding apparatus according to an embodiment of the present invention, and FIG. 14 is a flexible display folding apparatus according to an embodiment of the present invention. Is an exploded perspective view showing a combination of a jig base plate, a jig plate and a leaf spring module, and FIG. 15 is an exploded perspective view showing an exploded view of a leaf spring module in a flexible display folding apparatus according to an embodiment of the present invention.

The first jig plate 260 and the second jig plate 270 are regions on which the flexible display 10 is mounted, and the first jig plate 260 is used to perform a folding test such as folding and unfolding from 0 degrees to 90 degrees, which is a horizontal plane. The flatness of which the and the second jig plate 270 form a horizontal plane must all match.

Therefore, in order to test the durability of the flexible display 10, the flatness forming the horizontal plane of the first jig plate 260 and the second jig plate 270 must match. If the flatness does not match, during the durability test (folding test) The display 10 may be damaged.

The flexible display folding apparatus 100 of the present invention uses a first plate spring module 300 and a second plate spring module 400 to provide a first jig plate 260 and a second plate that are very important for durability testing. The flatness of the jig plate 270 is quickly and simply adjusted.

The second jig base plate 230 and the second jig plate 270 become a reference plate that becomes a reference plate in the work of aligning the flatness forming a horizontal plane, and the first plate spring module 300 and the second plate spring module 400 The first jig base plate 220 and the first jig plate 260 coupled to each other become a target plate to be adjusted.

The first plate spring module 300 and the second plate spring module 400 according to an embodiment of the present invention adjust the first jig base plate 220 to be adjusted vertically, based on the second jig plate 270. Thus, the flatness of the first jig plate 260 and the second jig plate 270 to match the horizontal plane may be adjusted.

The first plate spring module 300 is mounted on the upper surface of one end of the first jig base plate 220 and the upper surface of the first support-side rotating bar 187 and coupled by bolts, and the first jig base The plate 220 is coupled to the first support-side rotating bar 187.

The second plate spring module 400 is mounted on the upper surface of the other end of the first jig base plate 220 and the upper surface of the first motor-side rotating bar 195b and coupled by bolts, and the first jig base The plate 220 is coupled to the first motor-side rotating bar 195b.

The first leaf spring module 300 according to an embodiment of the present invention includes a plate fixing spring bar 310, a rotation bar fixing spring bar 320, and the plate fixing spring bar 310 and the rotation bar fixing spring bar 320. ) And a plurality of leaf springs 330 disposed between them.

The plate fixing spring bar 310 is mounted on an upper surface of one end of the first jig base plate 220 in the shape of a bar bar in the longitudinal direction.

The plate fixing spring bar 310 forms two first upper grooves 311a and 311b spaced apart from each other by a predetermined distance on the upper surface, and each of the first upper grooves 311a and 311b and the first jig base plate 220 ) Through the bolt in the groove and fixed to the upper surface of the first jig base plate 220.

The plate fixing spring bar 310 has a first plate groove 310a, a second plate groove 310b, a third plate groove 310c, and a fourth plate groove 310d penetrating through the lateral direction, respectively, It is formed at a distance.

The size of the holes of the second plate groove 310b and the fourth plate groove 310d is larger than that of the first plate groove 310a and the third plate groove 310c.

The rotation bar fixing spring bar 320 is mounted on the upper surface of the first supporting side rotation bar 187 in the shape of a bar bar in the longitudinal direction.

The rotating bar fixing spring bar 320 forms two second upper grooves 321a and 321b spaced apart from each other by a predetermined distance on the upper surface, and each of the second upper grooves 321a and 321b and the first support-side rotating bar ( The bolt is passed through the groove of 187) and fixed to the upper surface of the first support-side rotating bar 187.

The rotation bar fixing spring bar 320 has a first rotation bar groove (320a), a second rotation bar groove (320b), a third rotation bar groove (320c), and a fourth rotation bar groove (320d) penetrated in the lateral direction. It is formed at a certain distance apart.

The hole sizes of the first and third rotation bar grooves 320a and 320c are larger than those of the second and fourth rotation bar grooves 320b and 320d.

The leaf springs 330 are made of a plate-shaped metal material and are formed in a combination of five, and each of the leaf springs 330 forms through holes 330a, 330b, 330c, and 330d at regular intervals.

A first guide washer 331 is inserted from the plate fixing spring bar 310 toward the leaf spring 330 in the through hole 330a of the leaf spring 330, and the leaf spring ( The first fixing bolt 333 in the longitudinal direction is inserted through the first fixing washer 332 and the through hole 332a of the first fixing washer 332 toward 330.

The first fixing bolt 333 penetrates through the through hole 332a of the first fixing washer 332, the through hole 330a, and the first guide washer 331 in the order of the first fixing bolt 310 of the plate fixing spring bar 310. It is inserted into the plate groove 310a and fixed.

A second guide washer 335 is inserted from the rotation bar fixing spring bar 320 toward the leaf spring 330 in the through hole 330b of the leaf spring 330, and the leaf spring ( A second fixing bolt 335a in the longitudinal direction is inserted through the second fixing washer 334 and the through hole 334a of the second fixing washer 334 toward 330.

The second fixing bolt 335a penetrates through the through hole 334a of the second fixing washer 334 in the order of the through hole 330b, and the second guide washer 335 so that the rotation bar fixing spring bar 320 is formed. 2 It is fixed by being inserted into the rotary bar groove (320b).

A third guide washer 336 is inserted from the plate fixing spring bar 310 toward the leaf spring 330 in the through hole 330c of the leaf spring 330, and the leaf spring ( A third fixing bolt 338 in the longitudinal direction is inserted through the through hole 337a of the third fixing washer 337 and the third fixing washer 337 toward 330.

The third fixing bolt 338 passes through the through hole 337a of the third fixing washer 337, the through hole 330c, and the third guide washer 336 in the order of the third fixing bolt 310 of the plate fixing spring bar 310. It is inserted into the plate groove 310c and fixed.

A fourth guide washer 339a is inserted from the rotation bar fixing spring bar 320 toward the leaf spring 330 in the through hole 330d of the leaf spring 330, and the leaf spring ( The fourth fixing washer 339 and the through hole 339c of the fourth fixing washer 339 toward 330 are inserted through the fourth fixing bolt 339b in the longitudinal direction.

The fourth fixing bolt (339b) passes through the through hole (339c) of the fourth fixing washer (339) in the order of the through hole (330d), and the fourth guide washer (339a). 4 It is inserted into the rotary bar groove (320d) and fixed.

The plurality of leaf springs 330 are aligned and fitted using a first guide washer 331, a second guide washer 335, a third guide washer 336, and a fourth guide washer 339a.

The 1st, 2nd, 3rd, 4th fixing bolts (333, 335a, 338, 339b) are combined in a zigzag form in opposite directions to the plate spring 330 to maintain the balance of forces as well as to fix each other. It does not loosen even when rotating in shape.

The second plate spring module 400 is coupled to the upper surface of the other end of the first jig base plate 220 and the upper surface of the first motor-side rotating bar 195b. ) Functions and components are the same, so a detailed description of the components is omitted.

FIG. 16 is a view showing a state in which a gap is generated in a groove when a fixing bolt is loosely released in a leaf spring module according to an embodiment of the present invention, so that it can be moved up, down, left and right, and FIG. 17 is a leaf spring according to an embodiment of the present invention. It is a diagram showing the appearance of bending of the leaf spring due to the force applied in the module according to the direction in which the fixing bolt is coupled to the leaf spring.

As shown in Fig. 16, the first and second plate grooves 310b and the fourth plate groove 310d, the first rotary bar groove 320a, and the third rotary bar groove 320c are When loosening the 2, 3, 4 fixing bolts (333, 335a, 338, 339b), the second plate groove 310b and the fourth plate groove 310d, the first rotating bar groove 320a, the third rotating bar groove ( A clearance occurs in the inner space of 320c), so that the first jig base plate 220 can be freely moved vertically and horizontally. In the cross arrow of FIG. 16, a gap occurs in the second plate groove 310b, the fourth plate groove 310d, the first rotation bar groove 320a, and the third rotation bar groove 320c, so that the movement can be moved up, down, left and right. Is shown.

As shown in FIG. 17, the first leaf spring module 300 and the second leaf spring module 400 include first, 2, 3, and 4 fixing bolts 333, 335a, 338, and 339b. ), it can be seen that the force is applied according to the direction in which the leaf spring 330 is bent, and the force is applied in the bent direction. In this way, the direction of force is applied in a zigzag form to prevent the first, second, third, and fourth fixing bolts 333, 335a, 338, and 339b from loosening.

18 is a perspective view showing the configuration of a flat jig according to an embodiment of the present invention, FIG. 19 is a perspective view showing a state in which the flat jig and the flexible display folding apparatus according to the embodiment of the present invention are separated, and FIG. 20 is the present invention Is a perspective view illustrating a combination of a flat jig and a flexible display folding device according to an embodiment of, and FIG. 21 is a view showing an enlarged view of a partial area of the flexible display folding device according to an embodiment of the present invention.

Before mounting the flat jig (500, 510) of the present invention to the first jig plate 260 and the second jig plate 270, the above-described left R jig 240 and right R jig 250 are attached to the first plate ( It should be fitted between the 160) and the second plate 170.

The flat jig (500, 510) is used to align the horizontal plane between the first jig plate 260 and the second jig plate 270 by using the first leaf spring module 300 and the second leaf spring module 400. It is a device.

' 형태로 일정한 길이의 수평면 조절바(501, 511)와, 상기 수평면 조절바(501, 511)의 중앙부로부터 하부 방향으로 돌출되고, 상기 제1 지그 플레이트(260)와 상기 제2 지그 플레이트(270)의 사이의 공간에 끼워지는 R값 조절바(502, 512)를 포함한다.The flat jig (500, 510) has a cross section of '

The horizontal surface adjustment bars 501 and 511 having a predetermined length in a shape and protruding downward from the central portion of the horizontal surface adjustment bars 501 and 511, the first jig plate 260 and the second jig plate 270 It includes R value adjustment bars (502, 512) fitted in the space between.

When the R value adjustment bars 502 and 512 are inserted in the space between the first jig plate 260 and the second jig plate 270, the flat jig 500 and 510 1 Make sure that the lower surfaces 504 and 514 come into contact with one side of the upper surface of the first jig plate 260, and the second lower surfaces 503 and 513 of the horizontal adjustment bars 501 and 511 are the second jig plate 270. ) To touch the other side of the upper surface.

The lower surfaces 501, 503, 511, and 513 of the horizontal adjustment bars 501 and 511 are a surface that comes into contact with the upper surface of the first jig plate 260 and the upper surface of the second jig plate 270 and has a right angle. Surface roughness is very important.

First fixing holes 501b and 511b and second fixing holes 501a and 511a are drilled on the upper surfaces of the horizontal adjustment bars 501 and 511.

The thickness of the R value adjustment bars 502 and 512 is designed to fit a specific R value for correcting the R value formed in the space between the first jig plate 260 and the second jig plate 270. Here, the R value is a circle from the center of the folded portion of the flexible display 10, as shown in FIG. 18, when both the first jig plate 260 and the second jig plate 270 are folded at the same time by 90 degrees. It represents the length of the line segment reaching a point on the boundary of.

In other words, the thickness of the R value adjustment bars 502 and 512 is between the thickness 241a of the first vertical bar 241 of the left R jig 240 and the second vertical bar 251 of the right R jig 250. It is formed equal to the thickness 251a.

The flatness adjustment operation of aligning the horizontal plane between the first jig plate 260 and the second jig plate 270 is as follows.

First, the flat jigs 500 and 510 are fitted and fixed in the space between the first jig plate 260 and the second jig plate 270.

The first plate spring module 300 puts a bolt release tool into the second plate groove 310b, the fourth plate groove 310d, the first rotation bar groove 320a, and the third rotation bar groove 320c. , 2, 3, 4 Loosen the fixing bolts (333, 335a, 338, 339b). The second leaf spring module 400 loosens the fixing bolt in the same manner as the first leaf spring module 300.

The first jig base plate 220 includes the second plate groove 310b and the fourth plate groove 310d, the first rotary bar groove 320a, and the third rotary bar groove 320c of the first plate spring module 300. A play occurs in the interior space. Since the second leaf spring module 400 has the same structure, a gap is generated.

The upper surface of the second jig plate 270, which is a reference, is brought into contact with one side of the lower surface of the flat jig 500 and 510, and a bolt is applied to the second fixing holes 501a and 511a of the flat jig 500 and 510. Insert and fix.

The first jig base plate 220 and the first jig plate 260 in which the gap is generated are pushed to the first lower surfaces 504 and 514 of the flat jig 500 and 510 to fit at a right angle, and the flat jig 500 and 510 The bolts are inserted into the first fixing holes 501b and 511b to be fixed.

Thereafter, the fixing state of the first jig plate 260 is checked, and the bolts of the first plate spring module 300 and the bolts of the second plate spring module 400 are rotated and fixed.

When the flat jigs 500 and 510 are removed by loosening the bolts coupled to the first fixing holes 501b and 511b and the second fixing holes 501a and 511a of the flat jig 500 and 510, respectively, the first jig plate ( As the R value of the space formed between the 260 and the second jig plate 270 is corrected, the flatness that aligns the horizontal plane between the first jig plate 260 and the second jig plate 270 is adjusted.

22 is a perspective view showing a folding operation in a flexible display folding apparatus according to an embodiment of the present invention, and FIGS. 23 and 24 are conceptual diagrams showing a folding operation in a flexible display folding apparatus according to an embodiment of the present invention, and FIG. 25 is a view showing a state in which the display folds coincide with the motor rotation center in the flexible display folding apparatus according to an embodiment of the present invention, and FIG. 26 is a motor-side rotation sensor in the flexible display folding apparatus according to an embodiment of the present invention. Fig. 27 is a schematic diagram illustrating an out-folding operation in a flexible display folding apparatus according to an embodiment of the present invention.

The flexible display folding apparatus 100 of the present invention mounts the flexible display 10 over the top surface of the first jig plate 260 and the top surface of the second jig plate 270.

The flexible display 10 is divided into two portions of both the first jig plate 260 and the second jig plate 270.

The flexible display 10 and the first jig plate 260 and the second jig plate 270 are coupled by fastening members such as bolts.

In the present invention, a method of testing the folding of the flexible display 10 in the flexible display folding apparatus 100 will be described as follows.

When the control unit 640 generates and transmits the driving signals of the first motor 199 and the second motor 219, the first motor of the first motor-side rotation connection unit 190 is driven by the first motor 199. The side rotary elbar 195 and the first support-side rotary elbar 185 of the first support-side rotary support 180 rotate, and the second motor-side rotary connection 210 is driven by the second motor 219. 2 The motor-side rotating elbar 215 and the second supporting-side rotating elbar 205 of the second supporting-side rotating support 200 are rotated.

Accordingly, the first leaf spring module 300 and the second leaf spring module 400, in which the first motor-side rotation elbar 195 and the first support-side rotation elbar 185 are coupled to both ends, are rotated, and at the same time, the second motor The second jig base plate 230 to which the side rotation elbar 215 and the second support side rotation elbar 205 are coupled to both ends is also rotated.

The first plate spring module 300 and the second plate spring module 400 are coupled to both sides of the first jig base plate 230, and the first jig plate 260 is coupled to the upper surface.

The second jig plate 270 is coupled to the upper surface of the second jig base plate 220.

Accordingly, the control unit 640 simultaneously folds and unfolds both the first jig plate 260 and the second jig plate 270 according to the driving of the first motor 199 and the second motor 219. A folding test of folding and unfolding the upper surface of the plate 260 and the flexible display 10 mounted on the upper surface of the second jig plate 270 from 0° to 90°, which is a horizontal plane, is repeatedly performed.

When both the first jig plate 260 and the second jig plate 270 are simultaneously folded by 90 degrees, an R value is generated in the folded portion of the flexible display 10 as shown in FIG. 18.

Here, the R value represents the length of a line segment from the center of the folded portion of the flexible display 10 to a point at the boundary of the circle assuming a part of the circle.

The R value does not change during the folding test of folding and unfolding the flexible display 10 from 0 degrees to 90 degrees and should be constant.

If the jig plates 260 and 270 rotate only one side of the flexible display 10, there is a problem that the R value continuously changes during rotation.

In the present invention, both the first jig plate 260 and the second jig plate 270 are folded at the same time so that the R value does not change during the folding test.

23, 24, and 25, the reason why the R value does not change is the first point 11 and the first motor 199 at which the flexible display 10, which is one side of the upper surface of the flexible display 10, is folded. ) And the rotation center of the second motor 219 is designed to coincide in a straight line in the horizontal direction, and the second point 12 at which the flexible display 10, which is one side of the upper surface of the flexible display 10, is folded and the rotation center of the second motor 219 It is designed to coincide on a straight line in the horizontal direction.

When the rotation center of the motor and the folding point of the flexible display 10 are matched in this way, the folding point of the flexible display 10 is always the same regardless of the display thickness. The R value of 10) always remains the same.

The R value is determined by adjusting the distance 235 between the first jig plate 260 and the second jig plate 270.

The control unit 640 may freely set and test the folding angle between 0 degrees and 90 degrees according to the program setting.

The first jig plate 260 and the second jig plate 270 move in a direction away from each other when the rotation handle 158 of the bidirectional screw member 150 is rotated. And, the first jig plate 260 and the second jig plate 270 are also separated together to adjust the separation distance.

However, in order to adjust the distance 235 between the first jig plate 260 and the second jig plate 270 according to the R value, precise control is achieved by rotating the rotation knob 158 of the bidirectional screw member 150. It is difficult.

Therefore, the gap 235 between the first jig plate 260 and the second jig plate 270 is the left R jig 240 and the right R jig 250 as the first plate 160 and the second plate ( 170) to adjust.

The first vertical bar 241 of the left R jig 240 is sandwiched between the first left convex portion 161 of the first plate 160 and the second right concave portion 175 of the second plate 170. The second vertical bar 251 of the upper and right R jig 250 is between the first right concave portion 165 of the first plate 160 and the second left convex portion 171 of the second plate 170 Fits in.

The thickness 241a of the first vertical bar 241 and the thickness 251a of the second vertical bar 251 are already determined according to the R value.

Therefore, when the desired R value is determined, the left R jig 240 and the right side having the thickness 241a of the first vertical bar 241 and the thickness 251a of the second vertical bar 251 corresponding to the determined R value After inserting the R jig 250 between the first plate 160 and the second plate 170, rotate the rotation knob 158 clockwise so that it is not rotated any more, so that the left R jig 240 and the right side The R jig 250 is firmly fixed.

When the first jig base plate 220 and the second jig base plate 230 reciprocate from 0 degrees to 90 degrees during the folding test, the first motor-side rotation sensor unit 197 and the second motor-side rotation accordingly The sensor unit 217 rotates.

26, the control unit 640 is electrically connected to the first position sensor 225 and the second position sensor 234, the first position sensor 225 and the second position sensor 234 ), the first position sensor 225 and the second position sensor 234 when it corresponds to the sensor detection area of the first motor-side rotation sensor unit 197 and the second motor-side rotation sensor unit 217 where) is rotated. A sensor detection signal is received from) and a driving stop signal is transmitted to the first motor 199 and the second motor 219.

When the first jig plate 260 and the second jig plate 270 exceed 90 degrees, a collision occurs between the jig plates, and when it exceeds 0 degrees, the first plate 160 and the second plate 170 collide. It is to prevent this because it happens.

The control unit 640 does not detect a sensor of the first motor-side rotation sensor unit 197 and the second motor-side rotation sensor unit 217 in which the first position sensor 225 and the second position sensor 234 are rotated. In the case of an area, a sensor non-sensing signal is received from the first position sensor 225 and the second position sensor 234, and a driving signal is transmitted to the first motor 199 and the second motor 219. .

As shown in FIG. 27, when the display 10 is mounted, the controller 640 extends the display 10 across the lower surface of the first jig plate 260 and the lower surface of the second jig plate 270. ), the upper surface of the display 10 is mounted with the lower surface of the display 10 facing upward so that the display 10 is divided into two equal parts, the first motor 199 and the second motor Out that the display 10 is folded and unfolded from 0 degrees to 90 degrees by simultaneously folding and unfolding both the first jig plate 260 and the second jig plate 270 by transmitting the driving signal of 219). ) The folding test can be repeatedly performed. That is, the present invention can perform both the In folding test and the Out folding test described above.

The in-folding test is a test of folding toward the upper surface of the display 10, and the out-folding test is a test of folding toward the lower surface of the display 10.

The first fixing member (not shown) of the first jig plate 260 and the second fixing member (not shown) of the second jig plate 270 face down the upper surface of the display 10 and the display 10 When mounted with the lower surface of the display facing upward, it serves to hold the display 10 so that it does not fall off the lower surfaces of the first jig plate 260 and the second jig plate 270.

When the thickness of the display 10 of the present invention is different, that is, when it does not coincide with the rotation center of the motor, the first jig plate 260 and the second jig plate 270 are formed in an intaglio so that the display is Inserted into the first jig plate 260 and the second jig plate 270, a first point 21 at which the display 10, which is one side of the upper surface of the display 10, is folded, and the first motor 199 ) Is aligned in a straight line in the horizontal direction, and the second point 22 where the display 10, which is one side of the upper surface of the display 10, is folded and the rotation center of the second motor 219 are in the horizontal direction. To match on a straight line.

The flexible display folding device 100 is a device that applies tension to the flexible display 10 and determines how elastic a material is.

However, if a crack occurs before the number of folding the flexible display 10 is set, there is a problem in that the durability or reliability of the product is deteriorated.

Therefore, the presence or absence of such cracks is an important parameter of durability of the flexible display 10.

The vision inspection apparatus 600 of the present invention is a device that measures the durability of the flexible display 10 and may measure data on the durability of the corresponding display 10.

28 and 29 are views showing a state in which a vision inspection apparatus is combined with a flexible display folding apparatus according to an embodiment of the present invention, and FIG. 30 is a perspective view showing the configuration of a vision inspection apparatus according to an embodiment of the present invention, and FIG. 31 and 32 are views showing a side view of a vision inspection device according to an embodiment of the present invention, and FIGS. 33 and 34 are perspective views showing a view from the rear side of a vision inspection device according to an embodiment of the present invention .

35 and 36 are views showing an example of a display unit according to an embodiment of the present invention, and FIG. 37 is a block diagram schematically showing an internal configuration of a vision inspection apparatus according to an embodiment of the present invention.

28 is a view showing a form in which the display 10 is unfolded when performing a folding test of the display 10 using the flexible display folding device 100. At this time, a two-dimensional image obtained by the vision inspection device 600 Is inspected for cracks from

29 illustrates a form in which the display 10 is folded when performing a folding test of the display 10 using the flexible display folding apparatus 100.

The vision inspection apparatus 600 according to an embodiment of the present invention includes a moving member 610, a camera member 620, a control unit 640, an input unit 650, a storage unit 660, and a display unit 670. .

The moving member 610 includes an LM guide part 611 and a linear moving part 612.

The LM guide part 611 is formed long in the longitudinal direction and has a guide rail 611a having a linear shape, and guide grooves 611b formed along the longitudinal direction on both sides of the guide rail 611a, and the guide It is coupled to the rail (611a) and includes a block (611c) for performing a longitudinal movement forward and backward along the guide groove (611b) of the guide rail (611a).

The linear moving part 612 includes a moving block part 614 of a predetermined shape coupled to one surface of the block 611c, a ball nut part 613 connected to the moving block part 614, and the ball nut part. A screw 615 formed long in the longitudinal direction to integrally penetrate the 613 and the movable block part 614 and having a linear shape, and a first fixed stopper 616 coupled to one end of the screw 615 ), a second fixing stopper 617 coupled to the other end of the screw 615, and a coupling 618 and a driving motor 619 are coupled to one end of the first fixing stopper 616.

A first sensor 680 is installed around the first fixed stopper 616 to determine the starting position.

The block 611c of the LM guide part 611 couples a second sensor member 681 to one side to open and close the transmission signal of the first sensor 680.

When the second sensor member 681 moves according to the linear movement of the block 611c, the first sensor 680 generates a start signal to be sensed by the controller 640.

The control unit 640 may detect the start signal, calculate a distance starting from the position of 0, and control the driving motor 619 by determining how much to move.

The screw 615 is processed by rolling or grinding a screw groove along the circumferential direction.

The screw 615 is coupled through the central portion of the ball nut portion 613.

The ball nut part 613 has a cylindrical shape and forms a through hole penetrating the front and rear surfaces so that the screw 615 is coupled to the central part, and corresponds to a screw groove formed on the outer circumferential surface of the screw 615 on the inner circumferential surface of the through hole. A thread is formed.

The screw 615 is inserted into the through hole of the ball nut portion 613 so that the screw groove and the thread are screwed together. Accordingly, when the screw 615 is rotated by the driving force of the driving motor 619, the moving block unit 614 may linearly move along the screw 615 by rotation of the ball nut unit 613.

The camera member 620 is coupled to one side of the block 611c so that the camera pillar portion 621 having a certain height from the bottom surface is vertically erected, and a horizontal bent at a right angle at the upper end of the camera pillar portion 621 The bar 622 is formed to be long in the longitudinal direction to have a linear shape.

The horizontal bar 622 is in a horizontal direction to reach the flexible display 10 mounted to be divided into two portions on the upper surface of the first jig plate 260 and the upper surface of the second jig plate 270. Is formed by

The camera pillar portion 621 is coupled to the block 611c of the LM guide portion 611 on one side, and a cable chain 623 of a predetermined length is coupled to the other side, which is the opposite side. The cable chain 623 is simultaneously unfolded and folded according to the linear reciprocating motion of the camera post 621 and then overlapped and repeated.

The camera member 620 forms a camera cradle 624 at one end of the horizontal bar 622, and couples the camera unit 625 to the camera cradle 624, and a lens 626 at the bottom thereof. .

The camera unit 625 has a structure capable of vertical and horizontal adjustment for adjusting the focus and center of the camera.

On both sides of the lens 626, a first cradle 627 and a second cradle 628 inclined at a predetermined first angle so that the angle formed with the measurement surface of the flexible display 10 has an illumination angle less than or equal to the first specific angle. Combine. Here, the first specific angle can be set as needed, and preferably, the angle consisting of light irradiated to the measurement surface from the first lighting unit 627a and the second lighting unit 628a is an elevation of 20 to 50 degrees. To form.

The first lighting unit 627a is coupled to the lower surface of the first holder 627, and the second lighting unit 628a is coupled to the lower surface of the second holder 628.

The first lighting unit 627a and the second lighting unit 628a may be a substrate on which a plurality of LED elements are installed, or various light sources such as laser light may be used.

The horizontal bar 622 has a camera unit 625 installed on one side of the camera cradle 624, and a vertical cradle 630 in a downward direction on one side of the horizontal bar 622 on the opposite side of the camera cradle 624 Are combined to a certain length.

A horizontal cradle 631 having a predetermined width and length in the horizontal direction is coupled to the lower end of the vertical cradle 630. At both ends of the horizontal cradle 631, a third cradle 632 and a fourth cradle are inclined at a predetermined second angle so that the angle formed with the measurement surface of the flexible display 10 has an illumination angle less than or equal to the second specific angle. 633). Here, the second specific angle can be set as necessary, and preferably, the angle consisting of light irradiated to the measurement surface from the third lighting unit 632a and the fourth lighting unit 633a is a low angle of 60 to 90 degrees. To form.

The third lighting unit 632a is coupled to the lower surface of the third holder 632, and the fourth lighting unit 633a is coupled to the lower surface of the fourth holder 633.

The third lighting unit 632a and the fourth lighting unit 633a may be a substrate on which a plurality of LED elements are installed, or various light sources such as laser light may be used.

The above-described measurement surface may be the first point 11 where the flexible display 10 is folded.

The first lighting unit 627a, the second lighting unit 628a, the third lighting unit 632a, and the fourth lighting unit 633a exist outside a radius that is not affected by the folding operation of the flexible display folding apparatus 100.

The first lighting part 627a, the second lighting part 628a, the third lighting part 632a, and the fourth lighting part 633a are controlled by the controller 640 to adjust the lighting color and brightness.

The first lighting part 627a and the second lighting part 628a irradiate light closer to the vertical direction than the third lighting part 632a and the fourth lighting part 633a, so the first point 11 at which the flexible display 10 folds Can be illuminated more brightly.

The third lighting unit 632a and the fourth lighting unit 633a illuminate the cracks clearly when the flexible display 10 is folded because the irradiation angle of light is irradiated at an angle compared to the first and second lighting units 627a and 628a. There is an advantage to be able to do.

The control unit 640 controls the first lighting unit 627a, the second lighting unit 628a, the third lighting unit 632a, and the fourth lighting unit 633a to configure various conditions with a combination of reflection angle and brightness, 10) is controlled to accurately find various cracks.

The present invention describes a crack measurement method using the vision inspection device 600 in a flexible display folding device as follows.

The flexible display 10 is mounted on the upper surface of the first jig plate 260 and the upper surface of the second jig plate 270 so as to be divided into two portions.

In the present invention, one to three flexible displays 10 in the form of a finished product may be mounted, but it is possible to measure and inspect up to 20 cracks at a time with a size of 20 mm in a material form rather than a form of a finished product.

The flexible display 10 is fixed to the upper surface of the first jig plate 260 and the upper surface of the second jig plate 270 with one or more tapes 10a. The test result may vary according to the spacing, width, and attachment location of the tape 10a, and an optimized location, width, and spacing may be found through several experiments.

The control unit 640 receives environment setting information such as the number of times of folding of the folding device 100, the camera capture position, the lighting setting, and the number of camera captures through the input unit 650 and stores it in the storage unit 660.

The preset number of folding is a parameter that allows you to know how many times the display 10 is folded and unfolded, and then the camera unit 625 shoots the display 10. For example, the display 10 is opened after 200 folding tests. It is possible to determine whether to perform crack inspection by photographing, or to perform crack inspection by photographing the display 10 after 10,000 folding tests.

In the preset lighting setting, brightness adjustment of the first lighting unit 627a, the second lighting unit 628a, the third lighting unit 632a, and the fourth lighting unit 633a, a reflection angle position, and the like may be set.

The control unit 640 transmits the driving signals of the first motor 199 and the second motor 219 to simultaneously fold and unfold both the first plate 160 and the second plate 170 to open the display 10. Repeatedly performing a folding test of folding and unfolding from 0 degrees to 90 degrees, which is a horizontal plane.

At this time, the control unit 640 counts the number of folding, determines whether the counted number of folding matches by comparing with the preset number of folding, and if so, controls the driving motor 619 to rotate the screw 615. Control. Accordingly, when the screw 615 is rotated by the driving force of the driving motor 619, the moving block unit 614 moves linearly along the screw 615 due to the rotation of the ball nut unit 613.

The control unit 640 controls the first lighting unit 627a, the second lighting unit 628a, the third lighting unit 632a, and the fourth lighting unit 633a to irradiate light by selectively or all of them according to various conditions.

Since the plurality of lighting units set different brightness values according to capture positions or different reflectances according to sample types and materials, it is possible to selectively select an illumination unit and adjust the brightness value.

While the controller 640 repeats the folding test of folding and unfolding from 0 degrees to 90 degrees, which is a horizontal plane, the camera unit 625 also moves linearly at the same time according to the linear movement of the moving block unit 614, and the camera unit 625 When) reaches a preset camera capture position, a power control signal is transmitted to the camera unit 625 to capture and capture a 2D image of the flexible display 10.

The camera unit 625 captures and photographs an image of the display 10 when the first plate 160 and the second plate 170 are unfolded.

The control unit 640 captures and captures a 2D image of the flexible display 10 by transmitting a power control signal to the camera unit 625 according to a preset camera capture position and a preset number of camera captures. can do.

The control unit 640 may store the captured 2D image in the storage unit 660 and transmit it to the display unit 670 in real time during the folding test to check the crack of the display 10 at a specific location.

When the folding test is ended according to a preset folding termination condition, the control unit 640 transmits a stop control signal of the first motor 199 and the second motor 219 to transmit the first plate 160 and the second plate ( 170) is controlled to end the folding test.

The controller 640 may output the captured 2D image stored in the storage unit 660 to the display unit 670. As a result, it is possible to check the crack shape or formation process at which location of the flexible display 10 a crack has occurred.

As shown in FIGS. 35 and 36, the display unit 670 may check a crack inspection process by outputting a preset number of folding times, camera capture times, camera capture positions, and captured images of the display 10.

In the above, embodiments of the present invention are not implemented only through an apparatus and/or a method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention, a recording medium in which the program is recorded, or the like. In addition, this implementation can be easily implemented by an expert in the technical field to which the present invention belongs from the description of the above-described embodiment.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

10: display 100: folding device
101: main base plate 102: side base plate
103: first support 104: second support
110: first left LM guide 111: first left guide rail
112: first left block 120: second right LM guide
121: second right guide rail 122: second right block
130: first right LM guide 131: first right guide rail
132: first right block 140: second left LM guide
141: second left guide rail 142: second left block
150: two-way screw member 151: two-way ball screw
151a: intermediate point 151b: first moving part
151c: second moving part 152: first processed product bundle part
153: second processed product bundle 154: first bearing support
154a: first bearing 155: second bearing support
155a: second bearing 156: coupling
156a: rotating handle shaft 157: third bearing support
157a: third bearing 158: rotating handle
159: fixing screw 160: first plate
161: first left convex portion 162: first left concave portion
163: first intermediate convex portion 164: first right convex portion
165: first right concave portion 166: first seating portion
170: second plate 171: second left convex
172: second left concave portion 173: second intermediate convex portion
174: second right convex portion 175: second right concave portion
176: second seating portion 180: first support-side rotation support portion
181: first support-side rotation shaft column 181a: through hole
182: first support-side rotary bearing 183: second support-side rotary bearing
184: first support-side rotation shaft 184a: head portion
185: first supporting side rotating elbar 186: first supporting side supporting surface
187: first support-side rotating bar 188: first support-side bearing stop ring
190: first motor-side rotation connection 191: first motor-side rotation shaft column
191a: through hole 192: first motor side rotary bearing
193: second motor-side rotary bearing 194: first motor-side rotary shaft
194a: head portion 195: first motor-side rotating elbar
195a: first motor side support surface 195b: first motor side rotation bar
196: first motor-side bearing stopping ring 197: first motor-side rotation sensor unit
198: first motor coupling coupling 198a: first reduction gear
199: first motor 200: second support side rotation support
201: second support-side rotating shaft column 201a: through hole
202: first support-side rotary bearing 203: second support-side rotary bearing
204: second support-side rotation shaft 204a: head portion
205: second support-side rotating elbar 206: second support-side support surface
207: second support-side rotating bar 208: second support-side bearing stop ring
210: second motor-side rotation connection 211: second motor-side rotation shaft column
211a: through hole 212: first motor side rotary bearing
213: second motor-side rotary bearing 214: second motor-side rotary shaft
214a: head part 215: second motor-side rotating elbar
215a: second motor side support surface 215b: second motor side rotation bar
216: second motor side bearing stopping ring 217; Rotation sensor part on the second motor side
218: second motor coupling coupling 218a: second reduction gear
219: second motor 220: first jig base plate
225: first position sensor 230: second jig base plate
234: second position sensor 235: interval
240: left R jig 241: first vertical bar
241a: thickness 242: first horizontal bar
250: right R jig 251: second vertical bar
251a: thickness 252: second horizontal bar
260: first jig plate 270: second jig plate
300: first leaf spring module 400: second leaf spring module
500, 510: flat jig 600: vision inspection device
610: moving member 611: LM guide part
611a: guide rail 611b: guide groove
611c: block 612: linear moving part
613: ball nut portion 614: moving block portion
615: screw 616: first fixing stopper
617: second fixing stopper 618: coupling
619: drive motor 620: camera member
621: camera pillar 622: horizontal bar
623: cable chain 624: camera cradle
625: camera unit 626: lens
627: first cradle 627a: first lighting unit
628: second cradle 628a: second lighting unit
630: vertical cradle 631: horizontal cradle
632: third cradle 632a: third lighting unit
633: fourth cradle 633a: fourth lighting unit
640: control unit 650: input unit
660: storage unit 670: display unit

Claims (6)

A first jig base plate 220 and a second jig base plate 230, which are spaced apart from each other by a certain distance, face each other in a form forming a horizontal plane, and have a certain width and length, and the upper part of the first jig base plate 220 The second jig is mounted on the upper surface of the second jig base plate 230, is spaced apart from each other by a certain distance, faces to each other in a horizontal plane, and is positioned half by half when the flexible display 10 is mounted on each upper surface. The first jig plate is coupled to both sides of the 1 jig plate 260 and the second jig plate 270 and the first jig base plate 220 to adjust the first jig base plate 220 vertically and horizontally. A first plate spring module 300 and a second plate spring module 400 for performing a flatness adjustment operation to align a horizontal plane between the 260 and the second jig plate 270, and the first jig plate 260 ) And the second jig plate 270, after mounting at least one flexible display 10 in half each, and then repeatedly performing a folding test in which half of the flexible display 10 is folded and unfolded from 0 degrees to 90 degrees, which is a horizontal plane. A folding device 100 having a control unit 640 that performs as a function; And
A moving block part 614 of a certain shape formed to be spaced apart from one side of the folding device 100 by a certain distance, and formed long in the longitudinal direction so as to integrally penetrate the moving block part 614, and having a linear shape. A screw 615, a moving member 610 to which a driving motor 619 is coupled to one end of the screw 615, and a camera pillar portion 621 having a predetermined height from the bottom surface by being coupled to the moving member 610 A horizontal bar 622 that is vertically erected and bent at a right angle at the upper end of the camera pillar 621 is formed to be long in the longitudinal direction, and a camera unit 625 is formed on one side of the horizontal bar 622 And a vision inspection device in which a lens 626 is coupled to a lower portion of the camera unit 625,
The control unit 640 counts the number of times of folding the display 10 is folded and unfolded, and when the counted number of folding is compared with a preset number of folding, the control unit 640 controls the driving motor 619 to control the camera unit. Characterized in that, while moving linearly, a power control signal is transmitted to the camera unit 625 according to a preset capture position and a preset number of camera captures to take a two-dimensional image of the flexible display to inspect cracks. A flexible display folding device having a vision inspection device. The method of claim 1,
The first and second leaf spring modules 300 and 400 include a plate fixing spring bar 310 in the shape of a bar bar in a longitudinal direction, a rotation bar fixing spring bar 320 in the shape of a bar bar in the longitudinal direction, and the plate fixing Includes a plurality of leaf springs 330 disposed between the spring bar 310 and the rotation bar fixing spring bar 320,
The plate spring 330 is a form in which a plurality of plate-shaped metal materials are combined, a plurality of through holes 330a, 330b, 330c, 330d are formed at regular intervals, and fixed to each of the through holes 330a, 330b, 330c, 330d. A flexible display folding apparatus having a vision inspection device, characterized in that the directions of the first, 2, 3, and 4 fixing bolts (333, 335a, 338, 339b) are combined in a zigzag shape in opposite directions. The method of claim 1,
On both sides of the lens 626, a first cradle 627 and a second cradle are inclined at a predetermined first angle so that the angle formed with the measurement surface of the flexible display 10 has an illumination angle less than or equal to a first specific angle. 628), a first lighting unit 627a is coupled to a lower surface of the first holder 627, a second illumination unit 628a is coupled to a lower surface of the second holder 628,
A vertical cradle 630 is coupled to one side of the horizontal bar 622 in a lower direction with a predetermined length, and a horizontal cradle 631 having a predetermined width and length in the horizontal direction is coupled to the lower end of the vertical cradle 630 , At both ends of the horizontal cradle 631, a third cradle 632 and a third cradle 632 inclined at a constant second angle so that the angle formed with the measurement surface of the flexible display 10 has an illumination angle less than a second specific angle. 4 Combine the mount 633, the third lighting unit 632a is coupled to the lower surface of the third holder 632, the fourth lighting unit 633a is coupled to the lower surface of the fourth holder 633, ,
The first specific angle is an angle composed of light irradiated to the measurement surface from the first lighting unit 627a and the second lighting unit 628a to form an elevation of 20 to 50 degrees,
The second specific angle is provided with a vision inspection device, characterized in that the angle consisting of light irradiated to the measurement surface from the third lighting unit 632a and the fourth lighting unit 633a forms a low angle of 60 to 90 degrees. Flexible display folding device. The method of claim 3,
When capturing and capturing a two-dimensional image of the flexible display 10, the control unit 640, the first lighting unit 627a, the second lighting unit 628a, the third lighting unit 632a, the fourth A flexible display folding apparatus having a vision inspection device, characterized in that it selectively controls the lighting unit 633a, adjusts a brightness value, and configures lighting conditions according to the type of the flexible display 10. The method of claim 1,
The control unit 640 stores the image captured by the camera unit 625 in the storage unit 660, and transmits it to the display unit 670 in real time during a folding test to check a crack at a specific location, and Vision inspection, characterized in that the number of folds, the preset number of camera captures, the preset camera capture position, and a two-dimensional image of the photographed display 10 are transmitted to the display unit 670 to confirm a crack inspection process. A flexible display folding device provided with a device. The method of claim 1,
The moving member 610 is formed long in the longitudinal direction and has a guide rail 611a having a linear shape, and guide grooves 611b formed along the longitudinal direction on both sides of the guide rail 611a, and the guide Further comprising an LM guide provided with a block (611c) coupled to the rail (611a) to perform a forward and backward movement in the longitudinal direction along the guide groove (611b) of the guide rail (611a),
A flexible display folding with a vision inspection device, characterized in that the movable block part 614 is coupled to one surface of the block 611c, and the camera pillar 621 is coupled to the other surface of the block 611c. Device.

Images