KR20070074179A - Unit for connecting circuit board and apparatus for testing plat display panel having the unit - Google Patents

Abstract

A circuit board connecting unit and a flat display panel inspecting device having the same are provided to reduce the cost and to facilitate manufacturing work by reducing the number of parts and simplifying the structure, and to secure good work efficiency by contacting patterns of first and second PCBs(Printed Circuit Board) to each other without an alignment process. A circuit board connecting unit(100) for connecting patterns of first and second PCBs(310,210) to each other is composed of a plug(110) combined with one end of the first PCB; a socket block(120) installed at a base plate(202) where the second PCB is mounted, and provided with an insertion port(124) into which the plug is inserted; and a pusher member(140) for contacting the patterns of the first PCB joined to the plug with the patterns of the second PCB by pressing the plug fitted through the insertion port of the socket block, from the upper side of the socket block.

Description

Circuit board connection unit and flat panel display panel inspection apparatus having the same {UNIT FOR CONNECTING CIRCUIT BOARD AND APPARATUS FOR TESTING PLAT DISPLAY PANEL HAVING THE UNIT}

1 is a block diagram illustrating a schematic configuration of an apparatus for inspecting a flat panel display panel according to an exemplary embodiment of the present invention.

2 is a perspective view illustrating a circuit board connection unit, a probe unit, and an interface module according to the first embodiment of the present invention.

3 is a plan view illustrating the circuit board connection unit illustrated in FIG. 2.

4A and 4B are diagrams illustrating a process of contacting a first circuit board and a second circuit board by a connection unit in the present invention.

5 and 6 are perspective views illustrating a circuit board connection unit, a probe unit, and an interface module according to the second embodiment.

FIG. 7 is a side view illustrating a state in which a first circuit board and a second circuit board are connected by a circuit board connection unit according to a second embodiment.

8 is an exploded perspective view of a circuit board connection unit according to a second embodiment.

9 is a plan view of a circuit board connection unit according to a second embodiment.

10A through 10C are diagrams illustrating a process of contacting and separating a first circuit board and a second circuit board by a connection unit.

Explanation of symbols on the main parts of the drawings

1: inspection device 100: connection unit

110: plug 120: socket block

130: alignment member 140: pusher member

200: interface module 300: probe unit

The present invention relates to a flat panel display panel inspection device, and more particularly, a circuit board connection unit for electrically connecting a flexible printed circuit board (FPC) of a probe unit and a printed circuit board of an interface module, and a flat panel display panel inspection device having the same. It is about.

In general, flat panel displays such as TFT-LCDs are rapidly becoming larger and higher in size due to mass production technology and R & D. As a result, they are not only used for laptop computers but also for large monitor applications. It is being developed and gradually replaced the existing cathode ray tube (CRT) products, and its portion in the display industry is gradually increasing.

Such a flat panel display panel includes a number of connection terminals for driving the panel near the edge of the panel, and applies electric signals to the pixels of the flat panel display panel through these connection terminals. Meanwhile, like a semiconductor chip, a flat panel display panel applies an electrical signal to a panel before mounting it on a product and inspects whether a pixel is defective.

The test equipment for this purpose is equipped with a tester having various measuring devices and a probe unit for electrically connecting the tester and the flat panel display panel. In particular, the probe unit directly contacts the connection terminal of the flat panel display panel to apply an electrical signal to the connection terminal and simultaneously detect an output.

The flat panel panel inspection apparatus is a structure in which the flexible printed circuit board (FPC) of the probe unit and the printed circuit board of the interface module are electrically connected to each other to input an electrical signal to the probe unit, and these substrates are provided with pogo pins. It is electrically connected to each other by pogo blocks.

However, the pogo pin type connection structure has a difficulty in fabricating the micro holes in accordance with the number and pitch of pogo pins in the pogo block. In particular, it takes a lot of time to align the pogo pins of the pogo block to the pattern of the printed circuit board, there is a disadvantage that the overall manufacturing cost is high.

SUMMARY OF THE INVENTION An object of the present invention is to provide a new type of circuit board connection unit and a flat panel display panel inspection apparatus having the same in which the connection structure between the flexible circuit board of the probe unit and the printed circuit board of the interface module is improved.

SUMMARY OF THE INVENTION An object of the present invention is to provide a circuit board connection unit and a flat panel display panel inspection apparatus having the same, which can simplify the operation of electrically connecting the flexible circuit board of the probe unit and the printed circuit board of the interface module.

An object of the present invention is to provide a circuit board connection unit having a low manufacturing cost and a flat panel display panel inspection apparatus having the same.

An object of the present invention is to provide a circuit board connection unit excellent in accurate signal transmission and contact reproducibility and a flat panel display panel inspection apparatus having the same.

The circuit board connection unit of the present invention for achieving the above object comprises a plug to which one end of the first circuit board is coupled; A socket block mounted to a base plate on which a second circuit board is installed and having an insertion hole into which the plug is inserted; And a pusher member configured to press the plug inserted through the insertion hole of the socket block on the socket block so that the patterns of the first circuit board coupled to the plug are in contact with the patterns of the second circuit board. have.

According to an embodiment of the present disclosure, the circuit board connection unit may further include an alignment member that restricts an insertion position of the plug such that the patterns of the first circuit board are aligned on the patterns of the second circuit board. .

According to an embodiment of the present invention, the alignment member may include reference pins formed in the socket block and reference holes formed in the plug and into which the reference pins are inserted.

According to an embodiment of the present invention, the plug may have a sheet on the bottom surface to which the first circuit board is attached.

According to an embodiment of the present invention, the pusher member may include screws that are inserted into screw holes formed in the socket block and press the upper surface of the plug.

According to an embodiment of the present invention, a screw head groove into which the head of the screw is inserted is formed in an upper portion of the screw hole, and the screw head groove may be formed to limit the position of the screw pressing the plug.

According to an embodiment of the present invention, the pusher member is installed in the socket block, the movable block movable to the first position pressing the upper surface of the plug and the second position spaced apart from the upper surface of the plug; A stopper installed in the moving block and inserted into a locking groove formed in the socket block when the moving block is moved to the first position to limit movement of the moving block; It may include a release button for moving the stopper to release the lock state of the stopper coupled to the locking groove of the socket block.

According to an embodiment of the present invention, an opening on which one end of the movable block is rotatably installed may be formed on an upper surface of the socket block.

According to an embodiment of the present invention, the moving block is provided with a mounting groove into which the stopper is inserted at the other end, and the mounting groove for restoring the stopper moved to the mounting groove by the release button to its original position. Springs can be installed.

According to an embodiment of the present invention, the lock groove is formed on one surface of the socket block corresponding to the mounting groove, the release button is installed in the lock groove to move back and forth and the socket so that one end can be pressed by the worker Exposed to the outside of the block.

According to an embodiment of the present invention, the stopper may include a first inclined surface for minimizing contact with one surface of the socket block when the moving block is rotated from the first position to the second position, and the moving block may include the first inclined surface. A second inclined surface is formed to minimize contact with one surface of the socket block when rotated from the second position to the first position.

According to an exemplary embodiment of the present invention, a plurality of reference pins for mounting positions of the socket block are installed in the base plate, and reference holes into which the reference pins are inserted are formed in the bottom of the socket block.

According to an aspect of the present invention, there is provided a flat panel display inspection apparatus including: probe units having probes in contact with the flat panel display panel and a first circuit board configured to provide an electrical signal to the probes; An interface module having a second circuit board for providing an electrical signal to the first circuit board of each of the probe units; And a circuit board connection unit for directly contacting the patterns of the first circuit board and the patterns of the second circuit board.

According to an embodiment of the present invention, the circuit board connection unit includes a plug to which one end of the first circuit board is coupled; A socket block mounted on a base plate on which the second circuit board is installed and having an insertion hole into which the plug is inserted; And a pusher member configured to press the plug inserted through the insertion hole of the socket block on the socket block so that the patterns of the first circuit board coupled to the plug are in contact with the patterns of the second circuit board. have.

According to an embodiment of the present invention, the circuit board unit further includes an alignment member for restricting an insertion position of the plug such that the patterns of the first circuit board are aligned above the patterns of the second circuit board; The alignment member may include reference pins formed in the socket block, and reference holes formed in the plug and into which the reference pins are inserted.

According to an embodiment of the present invention, the plug has a sheet on a bottom surface to which the first circuit board is attached.

According to an embodiment of the present invention, the pusher member includes screws that are inserted into screw holes formed in the socket block and press the upper surface of the plug.

According to an embodiment of the present invention, the pusher member is installed in the socket block, the movable block movable to the first position pressing the upper surface of the plug and the second position spaced apart from the upper surface of the plug; A stopper installed in the moving block and inserted into a locking groove formed in the socket block when the moving block is moved to the first position to limit movement of the moving block; And a release button for moving the stopper to release the lock state of the stopper coupled to the lock groove of the socket block.

According to an embodiment of the present invention, an opening in which one end of the movable block is rotatably installed is formed on an upper surface of the socket block, and the movable block is provided with a mounting groove into which the stopper is inserted at the other end thereof. The spring is installed to restore the stopper moved to the mounting groove by the release button to its original position.

According to an embodiment of the present invention, the locking groove is formed on one surface of the socket block corresponding to the mounting groove, the release button is installed to be movable back and forth in the locking groove and one end so that the operator can press Exposed to the outside of the socket block.

For example, embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited by the embodiments described below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Accordingly, the shape of the elements in the drawings and the like are exaggerated to emphasize a clearer description.

Exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 10C. In addition, in the drawings, the same reference numerals are denoted together for components that perform the same function.

The basic intention of the present invention is to easily and electrically connect the flexible circuit board of the probe unit and the printed circuit board of the interface module. In order to achieve this, the circuit board connection unit of the present invention is characterized in that the patterns of the flexible circuit board Characterized by a pusher member having a plug and socket block to align above the patterns, and a physical pressing to cause the patterns of the flexible circuit board to directly contact the patterns of the printed circuit board.

1 is a block diagram illustrating a schematic configuration of an apparatus for inspecting a flat panel display panel according to an exemplary embodiment of the present invention.

As shown in FIG. 1, an inspection apparatus 1 for inspecting a flat panel display panel according to the present invention includes a flat panel display from a tester 400 and a tester 400 for generating a predetermined signal for testing a flat panel display panel. Interface module 200 having a source / gate printed circuit board (PCB; hereinafter referred to as a second circuit board) that separates and transmits signals to the X and Y axes of the panel 10, and a second circuit board of the interface module 200. A predetermined signal is provided from the circuit board connection unit 100 and the interface module 200 directly connecting the 210 and the twisted-pair circuit board (FPC, hereinafter referred to as a first circuit board) 310 of the probe unit 300. A probe unit 300 having a first circuit board 310 to receive and probes 320 contacting the connection terminal 12 of the flat panel display panel 10 to apply an electrical signal provided from the first circuit board 310. )

2 is a perspective view illustrating a circuit board connection unit, a probe unit, and an interface module according to the first embodiment of the present invention. 3 is a plan view illustrating the circuit board connection unit illustrated in FIG. 2.

2 and 3, the circuit board connection unit 100 according to the first embodiment interfaces with the patterns 312 (shown in FIG. 4A) of the first circuit board 310 of the probe unit 300. A unit for directly connecting the patterns 212 (shown in FIG. 4A) of the second circuit board 210 installed in the base plate 202 of the module 200.

The circuit board connection unit 100 includes a plug 110, a socket block 120, an alignment member 130, and a pusher member 140.

The plug 110 has a plate shape in which two second reference holes 134 are formed at one end and is made of a transparent acrylic material. The plug 110 is formed to have a front bottom inclined. One end of the first circuit board 310 is attached to the bottom surface 114 of the plug 110 by an adhesive or the like, and a sheet (or film) 118 is attached to the bottom of the plug 110 to which the first circuit board 310 is attached. Is attached. The sheet 118 is for improving contactability when the patterns of the first circuit board 310 and the patterns of the second circuit board 210 are in contact with each other. Of course, the sheet 118 may be a composite sheet in which several sheets overlap.

The socket block 120 is mounted to the base plate 202 on which the second circuit board 210 is installed. The socket block 120 includes a vertical portion 122a having an insertion hole 124 into which the plug 110 is inserted and supported by the base plate 202, and one side of the second circuit board from an upper portion of the vertical portion 122a. It includes a horizontal portion (122b) is formed extending in the direction of the top) where the patterns are located. First reference holes 125 are formed at both ends of the bottom of the vertical portion 122a, three screw holes 126 are vertically penetrated through the horizontal portion 122b, and two second holes are formed on the bottom of the horizontal portion 122b. The two reference pins 132 are installed to protrude downward. A screw head groove 126a into which the head 142a of the screw 142 is inserted is formed at an upper portion of the screw hole 126. The screw head groove 126a provides a depth that can limit the position of the screw 142 that presses the plug 110. For example, if the pressing position of the screw 142 is not limited, the plug 110 may be broken due to excessive physical pressing of the screw 142.

The base plate 202 is provided with two first reference pins 204 for aligning the mounting position of the socket block 120, and the first reference pins 204 are provided with the first reference hole of the socket block 120. 125). The socket block 120 is placed in the correct position of the base plate 202 while the first reference pin 204 is inserted into the first reference hole 125. The socket block 120 placed on the base plate 202 is fixed by two fixing screws 190.

The alignment member 130 is to limit the insertion position of the plug 110 so that the patterns 312 of the first circuit board 310 are aligned on the patterns 212 of the second circuit board 210. Two second reference pins 132 are formed in the block 120 and two second reference holes 134 are formed in the plug 110. The patterns 312 of the first circuit board 310 are primarily aligned with the left and right positions while the plug 110 is inserted through the insertion hole 124 of the socket block 120, and the plug 110 has a second reference pin ( 132) secondary alignment with limited forward movement.

The pusher member 140 is composed of screws 142 that are screwed into the screw holes 126 formed in the horizontal portion 122b of the socket block 120 to press the upper surface of the plug 110. The screws 142 are the patterns 312 (shown in FIG. 4A) of the first circuit board 310 attached to the bottom of the plug 110, and the patterns 212 (shown in FIG. 4A) of the second circuit board 210. The upper surface of the plug 110 is inserted through the insertion hole 124 of the socket block 120 to be in contact with them.

4A and 4B are diagrams illustrating a process of contacting a first circuit board and a second circuit board by a connection unit in the present invention.

4A and 4B, the plug 110 to which the first circuit board 310 is attached is inserted through the insertion hole 124 of the socket block 120. In this process, the plug 110 is primarily aligned with the left and right positions by the insertion hole 124. While the plug 110 continues to move forward, the second reference pin 132 is inserted into the second reference hole 134, and the position of the plug 110 is aligned once again. Finally, as the second reference pin 132 is positioned at the end of the second reference hole 134 (limiting the forward movement of the plug), the plug 110 is aligned in the correct position.

In this state, the operator turns the screws 142 in the tightening direction so that the bottom surface of the screws 142 presses the top surface of the plug 110. When the screw is tightened until the bottom of the head 142a of the screw 142 contacts the bottom 126b of the screw head groove 126a, the bottom surface of the screw 142 presses the top surface of the plug 110 at an appropriate position. The patterns 312 of the first circuit board 310 attached to the bottom surface of the plug 110 contact the patterns 212 of the second circuit board 210.

(Variation)

5 to 10C are diagrams for describing a second embodiment of a circuit board connection unit.

5 and 6 are perspective views illustrating a circuit board connection unit, a probe unit, and an interface module according to the second embodiment. FIG. 7 is a side view illustrating a state in which a first circuit board and a second circuit board are connected by a circuit board connection unit according to a second embodiment.

5 to 7, the circuit board connection unit 100 ′ according to the second embodiment may include a first one of the probe unit 300 in a simple one-touch manner than the circuit board connection unit 100 according to the first embodiment. The unit directly connects the patterns 312 of the circuit board 310 and the patterns 212 of the second circuit board 210 installed on the base plate 202 of the interface module 200.

The circuit board connection unit 100 ′ includes a plug 110, an alignment member 130, and a socket block 120 ′ having a similar configuration and function as the circuit board connection unit 100 described above. In particular, the present embodiment is characterized in that it has a push member 150 for pressing the plug 110 in a one-touch manner.

The plug 110 has two second reference holes 134 formed at one end thereof, and one end of the first circuit board 310 is attached to the bottom of the plug 110 by an adhesive or the like. The sheet 118 is installed on the bottom surface of the plug 110 to which the first circuit board 310 is attached.

The socket block 120 ′ is mounted to the base plate 202 on which the second circuit board 210 is installed.

8 and 9 are an exploded perspective view and a plan view of a circuit board connection unit according to the second embodiment.

5, 8, and 9, the socket block 120 ′ includes a vertical portion 122a and a horizontal portion 122b. The vertical portion 122a has an insertion hole 124 into which the plug 110 is inserted and is supported by the base plate 202. First reference holes 125 are formed at both ends of the bottom of the vertical portion 122a. The horizontal part 122b extends from one side of the vertical part 122a toward one side (the upper part where the patterns of the second circuit board are located). The opening 122 having a rectangular shape penetrating from the upper surface to the lower surface is formed in the horizontal portion 122b.

The base plate 202 is provided with two first reference pins 204 for aligning the mounting position of the socket block 120 ', and the first reference pins 204 are the first reference of the socket block 120'. It is inserted into the holes 125. The socket block 120 ′ is positioned at the base plate 202 while the first reference pin 204 is inserted into the first reference hole 125. The socket block 120 ′ placed on the base plate 202 is fixed by two fixing screws 190.

The alignment member 130 is arranged such that the patterns 312 (shown in FIG. 10A) of the first circuit board 310 are aligned on top of the patterns 212 (shown in FIG. 10A) of the second circuit board 210. To limit the insertion position of the plug 110, two second reference pins 132 formed in the socket block 120 ′ and two second reference holes 134 formed in the plug 110. ) The patterns 312 of the first circuit board 310 are primarily aligned in left and right positions as the plug 110 is inserted through the insertion hole 124 of the socket block 120 ', and the plug 110 is second reference pin. The secondary movement is limited by forward movements by 132.

The pusher member 150 includes a moving block 152, a stopper 160 and a release button 170.

The moving block 152 is installed at the opening 123. The moving block 152 has a first position (the position shown in FIG. 10B) pressing the upper surface of the plug 110 at the opening 123 and a second position spaced apart from the upper surface of the plug 110 (shown in FIG. 10A). Position) so as to be movable. Two mounting grooves 154 are formed at the other end side surface 153 of the moving block 152, and a spring 164 and a stopper 160 are inserted into the mounting grooves 154. The stopper 160 limits the movement of the moving block 52 when the moving block 152 is moved to the first position. The stopper 160 restricts the movement (rotation) of the movement block 152 by fitting one end into the locking groove 127a formed in the inner surface 127 of the socket block 120 'by the elasticity of the spring 164. . The stopper 160 has a head 162 fitted into the locking groove 127a and a protrusion 161 formed to extend from the rear end of the head 162 and to which the spring 164 is fitted. The front of the head 162 of the stopper 160 is an inner side surface 127 of the socket block 120 'when the moving block 152 is rotated from the first position to the second position (or from the second position to the first position). In front of the head 162 of the stopper 160 has inclined first and second inclined surfaces 162a and 162b for smooth rotation of the moving block 152.

The locking groove 127a into which the head 162 of the stopper 160 is fitted is formed at one inner surface 127 of the socket block 120 ′ facing the mounting groove 154. The release button 170 is installed inside the locking groove 127a. The release button 170 is used to release the lock state of the stopper head 162 inserted into the locking groove 127a. One end of the release button 170 has a through hole formed in the locking groove 127a. Through 127b) out of socket block 120 '. One end of the exposed release button 170 is coupled to the connection bar 172.

10A through 10C are diagrams illustrating a process of contacting and separating a first circuit board and a second circuit board by a connection unit.

Referring to FIG. 10A, when the moving block 152 is lifted to the second position, the plug 110 to which the first circuit board 310 is attached is inserted through the insertion hole 124 of the socket block 120 '. . In this process, the plug 110 is primarily aligned with the left and right positions by the insertion hole 124. The plug 110 is once again aligned with the position of the plug 110 while the second reference pin 132 is inserted into the second reference hole 134. Finally, as the second reference pin 132 is positioned at the end of the second reference hole 134 (limiting the forward movement of the plug), the plug 110 is aligned in the correct position. When the plug 110 is inserted, the operator presses the upper surface of the moving block 152 to rotate the moving block 152 from the second position to the first position. As the moving block 152 is moved to the first position, the bottom surface of the moving block 152 presses the upper surface of the plug 110, and the patterns 312 of the first circuit board 310 form the pattern of the second circuit board 210. Contact 212. At this time, the stopper 160 is positioned on the same line as the locking groove 127a and the head 162 of the stopper 160 is inserted into the locking groove 127a by the elasticity of the spring 164. Thus, even if the worker removes the force that pressed the moving block 152, the moving block 152 maintains (sticks) to the first position (see FIG. 10B). As described above, the operation for contacting the first circuit board 310 and the second circuit board 210 inserts the plug 110 into the insertion hole 124 of the socket block 120 'and moves the block 152. Simply press to complete the process.

Meanwhile, a process of separating the first circuit board 310 and the second circuit board 210 is as follows. When the operator presses the connection bar 172, the release button 170 connected to the connection bar 172 moves from the lock hole 127a to move the head 162 of the stopper 160 located in the lock hole 127a outward. Push out. When the head 162 of the stopper 160 is out of the lock hole 127a, the moving block 152 is formed by the elastic restoring force of the plug 110 and the first and second circuit boards 310 and 210 pressed by the moving block 152. ) Is lifted upwards (rotated to the second position). In this state, when the moving block 152 is moved to the second position (FIG. 10A), when the plug 110 is pulled in the opposite direction to the insertion, it is easily separated from the socket block 120 ′. As described above, the separation process of the first circuit board 310 and the second circuit board 210 is a one-touch operation to press the connection bar 172 as in the connection process.

In the present invention, the flat panel display panel inspection apparatus having the above configuration can be variously modified and can take various forms. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the above description, but rather includes all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

As described above, the present invention is advantageous in that the number of parts and the structure are simple, the manufacturing cost is low, and the manufacturing is easy.

The present invention has excellent workability because the patterns of the first circuit board and the patterns of the second circuit board can be contacted without a separate alignment process.

According to the present invention, after the contact between the first circuit board and the second circuit board, the first circuit board can be easily separated from the second circuit board as necessary, so that maintenance is easy.

According to the present invention, the first circuit board and the second circuit board can be simply contacted in a one-touch manner, so that the work is simple and the working time can be shortened.

According to the present invention, the patterns of the first circuit board and the patterns of the second circuit board are directly contacted, thereby minimizing noise in a signal transmission process.

Claims (19)

In a circuit board connection unit connecting the patterns of the first circuit board and the patterns of the second circuit board: A plug to which one end of the first circuit board is coupled; A socket block mounted on a base plate on which the second circuit board is installed and having an insertion hole into which the plug is inserted; And And a pusher member configured to press the plug inserted through the insertion hole of the socket block on the socket block so that the patterns of the first circuit board coupled to the plug are in contact with the patterns of the second circuit board. Circuit board connection unit. The method of claim 1, The circuit board connection unit further comprises an alignment member for restricting the insertion position of the plug so that the patterns of the first circuit board is aligned above the patterns of the second circuit board. The method of claim 2, The alignment member And reference pins formed in the socket block and reference holes formed in the plug and into which the reference pins are inserted. The method of claim 1, And the plug has a sheet on a bottom surface to which the first circuit board is attached. The method according to any one of claims 1 to 4, The pusher member And a screw inserted into the screw holes formed in the socket block and pressing the upper surface of the plug. The method of claim 5, And a screw head groove into which the head of the screw is inserted is formed in the upper part of the screw hole, wherein the screw head groove is formed to limit the position of the screw pressing the plug. The method according to any one of claims 1 to 4, The pusher member A movable block mounted to the socket block and movable to a first position pressing the upper surface of the plug and a second position spaced apart from the upper surface of the plug; A stopper installed in the moving block and inserted into a locking groove formed in the socket block when the moving block is moved to the first position to limit movement of the moving block; And a release button for moving the stopper to release the lock state of the stopper coupled to the lock groove of the socket block. The method of claim 7, wherein And an opening having one end of the movable block rotatably installed on an upper surface of the socket block. The method of claim 7, wherein The moving block is provided with a mounting groove into which the stopper is inserted at the other end, And a spring for restoring the stopper moved to the mounting groove by the release button to its original position. The method of claim 9, The locking groove is formed on one surface of the socket block corresponding to the mounting groove, The release button is installed in the locking groove so as to move back and forth and the circuit board connection unit, characterized in that the end is exposed to the outside of the socket block so that the operator can press. The method of claim 8, The stopper includes a first inclined surface for minimizing contact with one surface of the socket block when the moving block is rotated from the first position to the second position, and the moving block rotates from the second position to the first position. And a second inclined surface for minimizing contact with one surface of the socket block. The method of claim 1, The base plate is provided with a plurality of reference pins for the mounting position of the socket block, the bottom of the socket block is connected to the circuit board connection unit, characterized in that the reference holes for inserting the reference pins are formed. Flat panel display inspection device: Probe units having probes in contact with the flat panel display panel and a first circuit board providing an electrical signal to the probes; An interface module having a second circuit board for providing an electrical signal to the first circuit board of each of the probe units; A circuit board connection unit for directly contacting the patterns of the first circuit board and the patterns of the second circuit board; The circuit board connection unit A plug to which one end of the first circuit board is coupled; A socket block mounted on a base plate on which the second circuit board is installed and having an insertion hole into which the plug is inserted; And And a pusher member configured to press the plug inserted through the insertion hole of the socket block on the socket block so that the patterns of the first circuit board coupled to the plug are in contact with the patterns of the second circuit board. Flat panel display panel inspection apparatus. The method of claim 13, The circuit board unit further includes an alignment member for restricting the insertion position of the plug so that the patterns of the first circuit board is aligned above the patterns of the second circuit board; The alignment member And a reference pin formed in the socket block and reference holes formed in the plug and into which the reference pin is inserted. The method of claim 13, And the plug has a sheet on a bottom surface to which the first circuit board is attached. The method of claim 13, The pusher member And a screw inserted into the screw holes formed in the socket block and pressing the upper surface of the plug. The method of claim 13, The pusher member A movable block mounted to the socket block and movable to a first position pressing the upper surface of the plug and a second position spaced apart from the upper surface of the plug; A stopper installed in the moving block and inserted into a locking groove formed in the socket block when the moving block is moved to the first position to limit movement of the moving block; And a release button for moving the stopper to release the lock state of the stopper coupled to the locking groove of the socket block. The method of claim 17, An opening is formed on an upper surface of the socket block so that one end of the movable block is rotatably installed. The moving block is provided with a mounting groove into which the stopper is inserted at the other end, And a spring for restoring the stopper moved to the mounting groove by the release button to its original position. The method of claim 18, The locking groove is formed on one surface of the socket block corresponding to the mounting groove, The release button is installed in the locking groove so as to be movable back and forth, flat panel display panel inspection apparatus, characterized in that the end is exposed to the outside of the socket block so that the operator can press.

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