KR101907447B1 - Display panel testing apparatus - Google Patents

Abstract

A display panel inspection apparatus is started.
A display panel inspection apparatus for inspecting an operation state of a display panel according to an embodiment of the present invention includes: a pallet installed on a work table and contacting a contactor for electrical inspection of a transported display panel; And a display panel mounted on the pallet to mount the contactor on a lower portion thereof and move up and down the contactor to clamp the display panel so that the pressing portion pressing the display panel at the time of clamping And a clamp in which a slope is deformed horizontally with respect to the display panel upon contact with the display panel.

Description

{DISPLAY PANEL TESTING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a display panel inspection apparatus and a method thereof, and more particularly, to a display panel inspection apparatus for automatically checking characteristics of a display panel produced in a factory.

In general, AMOLED panels, OLED (Organic Light Emitting Diodes), and liquid crystal displays (LCDs) are display panels for displaying images in accordance with driving signals, and they are used in various home appliances as well as portable information communication devices .

During the manufacturing process of the display panel, a process of inspecting whether a normal operation is performed by applying an electrical signal to the display panel in the production completion stage is performed, and a display panel inspection apparatus is used.

Such a display panel inspecting apparatus is mainly used to test electrical characteristics by contacting a contactor to apply a test signal to an electrical contact pad formed on a display panel.

For example, a conventional patent document No. 1346952 discloses a display panel inspection apparatus and a method thereof for inspection of a display panel.

In this patent document, the contactor is mounted under the clamp of the ascending / descending structure to bring the contactor into contact with the contact point of the display panel, and the clamp is lifted in a lever form, And then the clamp is lowered to bring the contactor into contact with the contact point of the display panel.

1 is a front view showing a state in which a clamp is lowered and a display panel is clamped in a conventional display panel inspection apparatus.

1, the clamp 30 is fastened on the supporter 20 through an LM guide (not shown in the drawing) and can be moved up and down. When the clamp 30 is clamped due to the descent, And the contactor is connected to signal lines for testing by pressing with appropriate force.

The pressing surface 31 for pressing the display panel 10 at the lower portion of the clamp 30 is integrally formed with the clamp body and has a structure for pressing the touch panel as it is according to the form in which the clamp 30 is provided.

At this time, signal lines between the contacts of the contactor and the display panel 10 can be accurately connected only when the pressing surface 31 of the clamp 30 is in contact with the display panel 10 in a precisely horizontal manner as shown in Fig. 1 (A) .

However, if a slight angle difference occurs between the pressing surface 31 of the clamp 30 and the display panel 10, as shown in Fig. 1 (B), the first pressing The surface 31-1 of the contact can be connected to the signal line of the touch panel and the signal line of the touch panel but the second pressing surface 31-2 on the opposite side is not pressed or pressed so that the signal line is not connected.

Accordingly, there is a problem that the display panel 10 can not be inspected in the past or an error occurs during the inspection process. When the display panel inspection apparatus is applied to the production line, there is a problem that the product yield due to the line stop is lowered.

Such a problem is caused by the fact that the entire block of the conventional clamp is formed of one rigid material, so that when the clamp is coupled, the horizontal degree of the entire block is distorted.

Therefore, in the related art, a precise setting for adjusting the horizontality is necessarily required every time the clamp 30 is coupled, and there is a risk that the precise setting should be risked to have a large influence on the quality of the display panel inspection.

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

Patent Document 1: Korean Patent No. 1346952 (issued on January 16, 2014)

SUMMARY OF THE INVENTION An embodiment of the present invention is to provide a display panel inspection apparatus having flexibility and clamping a display panel horizontally to form a clamp capable of accurately connecting signal lines of a contactor and a display panel.

According to an aspect of the present invention, there is provided a display panel inspecting apparatus for inspecting an operation state of a display panel, the apparatus comprising: a pallet installed on a work table and contacting a contactor for electrical inspection of a transported display panel; And a display panel mounted on the pallet to mount the contactor on a lower portion thereof and move up and down the contactor to clamp the display panel so that the pressing portion pressing the display panel at the time of clamping And a clamp in which a slope is deformed horizontally with respect to the display panel upon contact with the display panel.

In addition, the clamps may be provided in plural along the extended longitudinal direction of the supporter formed on the pallet.

Further, the clamp can be coupled to the supporter through the LM guide block and can ascend and descend through the lever-shaped lever.

The contactor may be any one of a flexible printed circuit board (FPCB), a microelectromechanical systems (MEMS) FPCB, a blade contactor, and a pin contactor.

In addition, the clamp may have a center hole formed at a center of the clamping portion when the body and the pressing portion are engaged with each other, so that the rotary portion is inserted, and the pressing portion is rotatable about the rotary portion.

Further, the rotating portion may be composed of a ball slide or a bearing.

The center hole may include a first groove formed on the lower surface of the body portion and a second groove formed on the upper surface of the pressing portion. The grooves surrounding the rotation portion may be curved surfaces shorter than the semi- And the pressing part can be formed.

In addition, the clamp may include a rotating bracket coupled to a portion of the body portion where the center hole is formed.

The clamp may further include upper and lower guide pins formed on the right and left sides of the body to penetrate the pressing part and guide the upward and downward movement according to the rotation of the pressing part; And an engaging member which penetrates through the through hole of the pressing part and the engaging hole of the body part in order.

In addition, the engaging member can form a gap between the body and the pressing portion after the fastening is completed.

In addition, the coupling member may be formed with threads only in the first body coupled to the coupling hole, and the second body passing through the through-hole may have a larger diameter than the first body without a thread.

In addition, the clamp may include a plurality of concave grooves formed across both sides facing each other when the body portion and the pressing portion are engaged, and an elastic body inserted into the plurality of concave grooves, respectively.

The elastic body may be formed of at least one of elastic silicon, viton, rubber and urethane which is deformed and restored by pressing force of the body portion.

In addition, the clamp may form a gap between the body portion and the pressing portion by forming the body portion and the recessed portion formed in the pressing portion respectively shorter than the height of the elastic body.

When the contact surface of the pressing part is in contact with the display panel due to the lowering operation, the clamp deforms the elastic body by the pressure pressed by the body part to change the interval between the lower surface of the body part and the upper surface of the pressing part .

In addition, the clamp may have the same elastic spring mounted on the right and left sides of the surface of the body portion where the pushing portions engage with each other at a predetermined interval.

According to the embodiment of the present invention, the pressing portion separated from the body of the clamp has flexibility and horizontally clamping the display panel, so that the signal line of the contactor and the display panel can be accurately connected.

In addition, the product yield can be improved by reducing the occurrence of errors in the inspection process of the display panel by bringing the contact surface of the pressing portion, which is given flexibility to the clamp, into horizontal contact with the display panel evenly.

Even when the clamping force is applied to the clamp, the inclination of the pushing portion separated from the body portion changes horizontally with respect to the display panel, so that a precise setting procedure for adjusting the horizontal force when clamping the clamping force can be omitted. It is possible to eliminate the risk factors depending on whether or not the operation is possible.

1 is a front view showing a state in which a clamp is lowered and a display panel is clamped in a conventional display panel inspection apparatus.
2 is a perspective view illustrating a configuration of a display panel inspection apparatus according to an embodiment of the present invention.
3 is a front perspective view showing an assembling structure of the pallet according to the embodiment of the present invention.
4 is an exploded perspective view showing an assembling structure of the pallet according to the embodiment of the present invention.
5 shows a clamp using a rotating shaft according to the first embodiment of the present invention.
6 is an exploded perspective view showing a coupling structure of a clamp according to the first embodiment of the present invention.
7 is a front view for explaining the principle of rotation of the pressing part coupled to the clamp according to the first embodiment of the present invention.
8 shows a clamp using an elastic material according to a second embodiment of the present invention.
9 is an exploded perspective view showing a coupling structure of a clamp according to a second embodiment of the present invention.
10 is a side view for explaining a modification of the elastic body coupled to the clamp according to the second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms " part, "" module," and " module ", etc. in the specification mean a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software have.

Throughout the specification, the terms first or second etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are intended to distinguish one element from another, for example, without departing from the scope of the invention in accordance with the concepts of the present invention, the first element may be termed the second element, The second component may also be referred to as a first component.

Now, a display panel inspection apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

2 is a perspective view illustrating a configuration of a display panel inspection apparatus according to an embodiment of the present invention.

3 is a front perspective view showing an assembling structure of the pallet according to the embodiment of the present invention.

2 and 3, a display panel inspection apparatus according to an embodiment of the present invention includes a main body 100, a pallet 200, a lever push portion 300, an operation portion 400, a camera portion 500, And a control unit 600.

The main body 100 is installed on a work table (not shown) for inspection of the display panel and includes a pallet 200, a lever push portion 300 and an operation portion 400. Inside the camera portion 500, (600).

The pallet 200 is installed on the work table and contacts the contactor 240 for electrical inspection of the transferred display panel.

The pallet 200 includes a plurality of clamps 230 sequentially installed along the longitudinal direction of the supporter 220 fixed on the base 210 of the main body 100.

In the embodiment of the present invention, as shown in FIGS. 2 and 3, ten clamps 230 may be installed in parallel on the pallet 200, and ten display panels corresponding to the clamps 230 may be simultaneously inspected. However, It does not.

The clamp 230 is installed on the pallet 200 and the contactor 240 is mounted on the lower part of the pallet 200 and the lever 250 in the form of a lever is moved up and down the contactor 240 to clamp the display panel to be inspected .

The contactor 240 may include various contactors such as a flexible printed circuit board (FPCB), a microelectromechanical systems (MEMS) FPCB, a blade contactor, a pin contactor, It can be applied variously according to the panel.

The lever push unit 300 is mounted on a moving body 310 capable of moving in the vertical (z) and horizontal (x) directions and moves down or up according to an input signal to simultaneously operate the levers 250 .

Specifically, the lever push portion 300 pushes the lever 250 in the lowering operation to raise the clamp 230 on which the contactor 240 is mounted, thereby forming an entry space for the arrangement of the display panel.

On the contrary, the lever push portion 300 releases the depression of the lever 250 by the lifting operation, thereby lowering the clamp 230 so that the clamp 230 clamps the display panel disposed below.

The clamp 230 electrically connects the signal line for testing by contacting the contactor 240 mounted at the lower portion with the battery contact pad of the touch panel by pressing the display panel and the contactor 240 with appropriate force during the clamping .

The operation unit 400 receives an operation command for the display panel inspection according to an embodiment of the present invention.

The operation unit 400 can input automatic loading or automatic unloading of the contactor 240 through a plurality of input buttons. If the operation mode is changed by this operation, the corresponding contactor can be easily .

The camera unit 500 captures the position of the contactor 240 in a clamping state from the bottom of the pallet and adjusts the position of the contactor 240 when the display panel is disposed, Provide images.

The control unit 600 controls the operations of the respective units for the display panel inspection according to the embodiment of the present invention and stores a program for the control thereof.

The controller 600 is connected to a multi-channel PCB (Printed Circuit Board) board and applies a test signal through a contactor 240 connected to each channel to perform an inspection on each display panel. For example, the inspection may be an aging operation, a lighting inspection, and the like, but is not limited thereto, and may perform an inspection related to the product status and performance of the known display panel.

4 is an exploded perspective view illustrating an assembling structure of the pallet according to the embodiment of the present invention.

4, a pallet 200 according to an embodiment of the present invention includes a base 210, a supporter 220, a clamp 230, a contactor 240, a lever 250 An LM guide block 260, a PCB 270, a Pyrex 280, and a panel stand 290. The LM guide block 260 includes a PCB 270,

The base 210 is fixed to the upper surface of the main body 100 through a coupling member such as a screw or a bolt.

The supporter 220 has an "a" -shaped support structure provided on the base 210 and supports the clamp 230, the lever 250 and the LM guide block 260 at predetermined intervals in the longitudinal direction A stepped space 221 is formed.

At this time, the supporter 220 is coupled with the base 210 through indexing plungers (not shown), and can be disassembled and assembled with the base 210 with one touch.

The clamp 230 has a convex protruding convex structure protruding into the stepped space 221 of the supporter 220 so that the LM guide block 260 To the supporter 220, and ascends and descends through levers 250 in the form of levers.

4, the rail block 261 of the LM guide block 260 is coupled to the inner side surface of the stepped space 221 of the supporter 220 and moves up and down in the vertical direction along the rail block 261 The slide block 262 is coupled to the clamp 230. The rail block 261 and the slide block 262 can be combined using two reference pins Pin for convenience of assembly.

A spring 231 inserted and fixed in a hole penetrating the lower portion of the supporter 220 is disposed on the left and right upper portions of the clamp 230 so that the contact force pressing the contact panel 240 against the contactor 240 . At this time, the supporter 220 includes a hole (not shown) through which the spring 231 is inserted to both sides of the lower portion, and a hole orthogonal to the insertion hole of the spring 231 is formed on the front surface of the supporter 220, (232) can be inserted.

As described in the related art, the conventional clamp has a shape in which the whole block is made of one rigid material. Therefore, when the horizontal degree is changed when the clamp is engaged, the horizontal degree of the whole block is changed, There is a problem that the signal line is not connected due to the poor contact of the panel.

Accordingly, the clamp 230 according to the embodiment of the present invention separates the pushing surface (hereinafter referred to as pushing portion) contacting the display panel from the lower portion from the body of the clamp 230.

The clamp 230 separates the clamp 230 from the body of the clamp 230 which is lifted and lowered by pressing the display panel so that the clamp 230 is deformed in a horizontal direction relative to the display panel when the clamp 230 contacts the display panel.

That is, the pressing portion of the clamp 230 is configured to have flexibility such that the inclination thereof is deformed into contact with the display panel. Accordingly, even when the level of the clamp 230 is changed at the time of clamping, the depressed portion deformed by a wrong angle can be pressed against the front surface of the display panel uniformly.

Here, the flexibility of the clamp 230 means that even if the pressing portion of the clamp is not constrained to the body and a slight angle difference occurs between the display panel and the display panel, the slope of the pressing portion can be deformed by the angle difference .

Hereinafter, a flexible clamp 230 will be described in detail with reference to various embodiments of the present invention.

[First Embodiment]

5 shows a clamp using a rotating shaft according to the first embodiment of the present invention.

6 is an exploded perspective view showing a coupling structure of a clamp according to the first embodiment of the present invention.

5 and 6, the clamp 230 according to the first embodiment of the present invention includes a body portion 2301, a pressing portion 2302, a center hole 2303, a rotation portion 2304, An upper guide pin 2306, and an engaging member 2307. As shown in Fig.

The clamp 230 is coupled with the body 2301 coupled to the supporter 220 through the LM guide block 260 and the pressing portion 2302 pressing the display panel from the lower portion of the body 2301 .

A center hole 2303 is formed at the center of the clamp 230 facing the body 2301 and the pressing part 2302 so that the rotation part 2304 is inserted and the rotation part 2304 is pivoted 2302) have the flexibility to rotate on the same principle as that of the sheath.

The rotation bracket 2305 is coupled to a portion where the center hole 2303 of the body portion 2301 is formed after the rotation portion 2304 is inserted to prevent the rotation portion 2304 from being disengaged.

The upper and lower guide pins 2306 are formed on the left and right of the body 2301 and guide up and down movement of the pushing part 2302 through the upper and lower guide holes 2306 'formed on the right and left of the pressing part 2302 .

The coupling member 2307 sequentially passes through the through hole 2307 'of the pressing portion 2302 and the coupling hole 2307' 'of the body portion 2301 to couple the two members, 2307 to form an interval that can be spaced up and down at a certain height.

To this end, the coupling member 2307 is formed with a thread only in a part of the first body to be fastened to the coupling hole 2307 ", and the second body passing through the through hole 2307 ' When the second body having a larger diameter than the first body reaches the inlet of the coupling hole 2307 ", the coupling of the coupling member 2307 is completed and the head of the coupling member 2307 is inserted into the through hole And is housed in the inside of the frame 2307 '.

At this time, since the second body length of the fastened coupling member 2307 is longer than the depth of the through hole 2307 ', the body portion 2301 and the pressing portion 2302 of the clamp 230 are spaced apart from each other Keep the clearance distance.

7 is a front view for explaining the principle of rotation of the pressing part coupled to the clamp according to the first embodiment of the present invention.

7, the clamp 230 according to the first embodiment of the present invention includes a body portion 2301 and a pressing portion 2302 coupled to each other by a coupling member 2307, And shows a state in which the rotation part 2304 is inserted into the center hole 2303. [

The rotating portion 2304 may be constituted by a ball slide. However, the embodiment of the present invention is not limited to the ball slide, but may be constructed using a rotating medium such as a bearing.

The center hole 2303 can be divided into a first groove formed on the lower surface of the body portion 2301 and a second groove formed on the upper surface of the pressing portion 2302. Each groove surrounding the rotation portion 2304 can be divided into a rotation portion 2304, A predetermined interval is formed between the lower surface of the body portion 2301 and the upper surface of the pressing portion 2302. [

That is, in other words, the height between the first and second grooves is shorter than the height (diameter) of the rotation part 2304 to form the gap between the body part 2301 and the pressing part 2302 Can be explained.

At this interval, the pushing portion 2302 has the flexibility of being able to change the inclination (that is, the height of the left and right portions of the pushing portion) by rotating the rotation portion 2304 from side to side around the center axis.

The pressing portion 2302 has such an effect that the contact surface of the pressing portion 2302 can be brought into close contact with the display panel in a horizontal direction even when the clamp 230 is engaged with the pressing portion 2302 so that even pressure can be applied.

5, a magnet 234 is provided at the lower center of the clamp 230, and a contact hole 240 is formed on the lower surface of the clamp 230 to receive the contact material 240, The contactor bracket 235 may be installed sequentially.

That is, due to the magnetic force generated between the magnet 234 and the contactor bracket 235 while the aligning guide pin 233 passes through the contactor 240 and the contactor bracket 235 side by side, the contactor 240 Can be fixed to the correct mounting position.

The pressing portion 2302 can press-fit the cushioning member 236 into the groove formed across the lower portion where the contact end of the contactor 240 is located, thereby improving contactability with the display panel.

As the cushioning material 236, Viton, silicone, urethane or the like may be used.

[Second Embodiment]

The clamp 230 according to the second embodiment of the present invention is substantially similar to the above-described embodiment and differs only in the configuration for imparting flexibility. Therefore, the description of the clamp 230 will be omitted.

8 shows a clamp using an elastic material according to a second embodiment of the present invention.

9 is an exploded perspective view showing a coupling structure of a clamp according to a second embodiment of the present invention.

8 and 9, the clamp 230 according to the second embodiment of the present invention includes a body portion 2301, a pressing portion 2302, a concave groove 2308, an elastic body 2309, A pin 2306 and a coupling member 2307. Fig.

The clamp 230 is coupled with the body 2301 coupled to the supporter 220 through the LM guide block 260 and the pressing portion 2302 pressing the display panel from the lower portion of the body 2301 .

The clamp 230 has a plurality of concave grooves 2308 formed across both sides facing each other when the body 2301 and the pressing portion 2302 are engaged with each other and an elastic body 2309 inserted into the plurality of concave grooves 2308, .

The elastic body 2309 may be made of elastic silicone whose shape is deformed and restored by the pressing force of the body portion 2301. The elastic body 2309 is not limited to a variety of materials other than Viton, It can be made of an elastic material.

At this time, the clamp 230 has flexibility in which the elastic body 2309 is deformed by the force that the clamp 230 is pressed down upon contact with the display panel due to the descent, so that the inclination of the pressing portion 2302 is deformed.

10 is a side view for explaining a modification of the elastic body coupled to the clamp according to the second embodiment of the present invention.

10, the clamp 230 according to the second embodiment of the present invention includes an elastic body 2309 attached to a plurality of recessed grooves 2308 formed between the body portion 2301 and the pressing portion 2302 Indicates the inserted state.

10A, the concave grooves 2308 formed in the body portion 2301 and the pressing portion 2302 are formed to be curved surfaces that are shorter than the semicircle of the elastic body 2309 so that the lower surface of the body portion 2301, A predetermined gap is formed between the upper surfaces of the first substrate 2302.

The height of the body portion 2301 and the concave groove 2308 formed in the pressing portion 2302 is shorter than the height of the elastic body 2309 so that the body portion 2301 and the pressing portion And 2302, respectively. 10, the cross-section of the concave groove 2308 and the elastic body 2309 is shown as a circular shape, but it is obvious that the cross-sectional shape may be a polygonal shape such as a square shape or a hexagonal shape.

The contact surface of the pressing portion 2302 contacts the display panel and the elastic body 2309 is deformed by the pressure that is pressed from the body portion 2301 as shown in Fig. 10 (B) The distance between the lower surface of the pressing portion 2301 and the upper surface of the pressing portion 2302 is changed.

The elastic member 2309 is deformed to deform the gap between the body portion 2301 and the pressing portion 2302. The elastic member 2309 is deformed by the position of the elastic body 2309 inserted in the lateral direction of the pressing portion 2302 The deformation magnitude varies depending on the degree of the applied pressure, and thus the change in the spacing of each position may vary.

Therefore, when the contact surface of the pressing portion 2302 and the display panel are in contact with each other at a predetermined angle, the size of the deformed portion varies depending on the position of the elastic body 2309 inserted into the predetermined length. , The height of the left and right sides of the pressing portion).

That is, due to the flexibility of the pressing portion 2302, even when the clamp 230 is engaged, the pressing portion 2302 changes the inclination of the pressing portion 2302 through the elastic body 2309, So that even pressure can be applied.

As described above, according to the embodiment of the present invention, the pressing portion separated from the body portion of the clamp has flexibility and horizontally clamping the display panel, so that the signal lines of the contactor and the display panel can be accurately connected.

In addition, there is an effect that the product yield can be improved by reducing the occurrence of error in the display panel inspection process by bringing the contact surface of the pressing portion, which is given flexibility to the clamp, evenly horizontally and horizontally into contact with the display panel.

In addition, even if the horizontal angle is changed when the clamp is engaged, the inclination of the pressing part separated from the body part changes horizontally with respect to the display panel, so that a precise setting process for adjusting the horizontal angle when the clamp is engaged can be omitted. It has the effect of eliminating the risk factors.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible.

For example, in the second embodiment of the present invention, the elastic body 2309 made of silicon is inserted into the concave groove 2308 where the body portion 2301 and the pressing portion 2302 face each other.

However, the embodiment of the present invention is not limited to this, and the pressing part 2302 may be coupled to the body part 2301 at a predetermined interval through a coupling member 2307, Can be mounted.

Thereby, the contact surface pressed by the pressing portion 2302 can be made flexible by using the elasticity of the spring formed on the right side of the coupling surface. This configuration can be sufficiently carried out in view of the above- Do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: main body 200: pallet
300: lever push portion 400:
500: camera unit 600: control unit
210: Base 220: Supporter
230: Clamp 231: Spring
232: spring bracket 233: guide pin
234: magnet 235: contactor bracket
236: cushioning material 2301:
2302: pressing portion 2303: center hole
2304: rotating part 2305: rotating part bracket
2306: Upper and lower guide pins 2307: Coupling member
2308: concave groove 2309: elastic body

Claims (16)

A display panel inspection apparatus for inspecting an operating state of a display panel,
A pallet installed on the work table and contacting the contactor for electrical inspection of the transported display panel; And
The display panel is clamped by an operation of mounting the contactor on a lower portion of the pallet and raising and lowering the contactor so that the pressing portion pressing the display panel at the time of clamping is separated from the body portion that is raised and lowered to have flexibility And a clamp in which a slope is horizontally deformed with respect to the display panel when the display panel is in contact with the display panel,
Wherein the clamp includes a plurality of recessed grooves formed across both sides of the clamping portion when the body and the pressing portion are engaged, and an elastic body inserted into each of the plurality of recessed grooves. The method according to claim 1,
The clamp
And a plurality of supporters formed on the pallet along the extended longitudinal direction. The method according to claim 1,
The clamp
A display panel inspection device coupled to the supporter through an LM guide block and ascending and descending through levers in the form of levers. The method according to claim 1,
The contactor includes:
Wherein the display panel is any one of a flexible printed circuit board (FPCB), a micro electro mechanical system (MEMS) FPCB, a blade contactor, and a pin contactor. 5. The method according to any one of claims 1 to 4,
The clamp
Wherein a center hole is formed at a center of the body portion and the pressing portion to be engaged with each other to insert the rotation portion, and the pressing portion rotates about the rotation portion about the center axis. 6. The method of claim 5,
Wherein the rotating portion is constituted by a ball slide or a bearing. 6. The method of claim 5,
The center hole
And a second groove formed on an upper surface of the pressing portion, wherein each of the grooves surrounding the rotating portion is formed to have a curved surface that is shorter than the semicircle of the rotating portion, so that the distance between the body portion and the pressing portion A display panel inspection device to form. 6. The method of claim 5,
The clamp
And a rotating bracket coupled to a portion of the body portion where the center hole is formed. 6. The method of claim 5,
The clamp
Upper and lower guide pins formed on the right and left sides of the body part to guide the up and down movement of the pushing part according to the rotation of the pushing part; And
And an engaging member that penetrates through the through hole of the pressing portion and the engaging hole of the body portion in order. 10. The method of claim 9,
The coupling member
Wherein the clearance between the body and the pressing portion is formed even after the fastening is completed. 10. The method of claim 9,
The coupling member
Wherein a thread is formed only on a first body to be fastened to the coupling hole and a second body passing through the through hole is formed with a larger diameter than a first body without a thread. delete The method according to claim 1,
The elastic body may be,
And at least one of silicone, Viton, rubber, and urethane made of an elastic material whose shape is deformed and restored by a pressing force of the body portion. The method according to claim 1,
The clamp
Wherein a total height of the body portion and the depressed portion formed in the pressing portion is shorter than a height of the elastic body to form a gap between the body portion and the pressing portion. The method according to claim 1,
The clamp
Wherein when the contact surface of the pressing part is in contact with the display panel due to the lowering operation, the elastic body is deformed by the pressure pressed by the body part, and the interval between the lower surface of the body part and the upper surface of the pressing part changes. . The method according to claim 1,
The clamp
Wherein the pushing portion of the pushing portion is engaged with the body portion at a predetermined interval and equally elastic springs are mounted on the right and left sides of the opposing face.

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