KR20200058102A - Contactor positioning device for display panel inspection - Google Patents

Abstract

The present invention relates to a contactor positioning device for display panel inspection to actively manage a change in specification of display panels. According to the present invention, a pallet includes LM guides and LM guide blocks, wherein each of the LM guide block includes an X-axis block fixing and moving each contact block along the LM guide. In the pallet, a plurality of spacers are disposed on the upper side of each LM guide and each of the plurality of spacers is disposed between the X-axis blocks. X-axis adjustment screws are disposed on both sides of each X-axis block to be loosely inserted into a screw penetration part of each spacer and an adjustment bolt coupled to each of the X-axis adjustment screws is closely attached to a side surface of the corresponding spacers, thereby finely adjusting the X-axis block between the spacers.

Description

Contactor positioning device for display panel inspection

The present invention relates to an apparatus for positioning a contactor for inspecting a display panel, and more specifically, the positions of the contactors listed in one-to-one correspondence with each display panel of a panel disc in which a plurality of display panels are formed in the vertical and horizontal directions in the X-axis and Y-axis directions. The present invention relates to a display panel inspection contactor positioning device capable of minimizing analytical errors by fine-tuning and actively coping with changes in specifications of display panels.

In general, during the manufacturing process of a small display panel composed of AMOLED, OLED and LCD, a process of inspecting whether the display panel operates normally by applying an electrical signal to the display panel is performed, and the device used at this time is a test station. The test station tests electrical characteristics using a blade, FPCB, or bump type contactor to apply an electrical signal to an electrical contact (Pad) formed in the display panel device. System.

Prior art No. 13,6952 has proposed a display panel inspection device. It is installed on the work table for inspecting the display panel main body; It includes a plurality of clamps that are sequentially installed along the extended longitudinal direction of the supporter assembled on the base fixed to the main body. A pallet for raising or lowering and bringing the contactor into contact with a corresponding display panel; A lever push unit mounted on a movable body capable of vertically and horizontally moving on the main body to operate the lever by descending or rising according to an input signal; And a control unit for applying an electrical signal to each channel connected to a plurality of contactors and performing an aging operation and a lighting inspection for each display panel.

However, in the case of the conventional patent, an LM guide block is used to guide the lifting of the clamp. Since the LM guide block has bearings installed on both sides of one pillar, there is a fear that the clamp may shake on both sides, and also the LM guide block. Since a pair of compression springs are provided on both sides of the product, it takes a lot of volume and has a disadvantage in that it is difficult to manufacture the clamp in a small size.

In addition, the conventional patent is not for inspecting the panel original on which a plurality of display panels are formed, but for inspecting individual display panels cut from the panel original, and thus the panel is inspected because the display panels are fixed to the pallet and the contactors are vertically elevated. There was a structural problem that could not be used as a dragon.

The panel disc is mounted on the transfer robot, and moves in the Y-axis direction to repeat the ascent in the Z-axis direction. At this time, a plurality of contactors have a structural feature that must be fixed upward toward the panel disc. According to these features, it is difficult to improve the above-mentioned conventional patents. In particular, since the display panels formed on the panel discs can be changed in specification, each contactor must be finely adjusted in the X-axis and Y-axis directions to make various panel discs with one facility. Conditions such as being able to inspect were necessary.

The present invention has been developed in view of the conventional problems, and the object of the present invention is to finely locate the positions of the contactors listed in a one-to-one correspondence with each display panel of a panel disc in which a plurality of display panels are formed vertically and horizontally in the X-axis and Y-axis directions. The present invention is to provide a contactor positioning device for inspecting a display panel that can minimize analytical errors by adjusting and also actively cope with changes in specifications of display panels.

To this end, the present invention is provided with a display panel arranged vertically and horizontally on a panel original plate, a pallet having a plurality of contact blocks arranged in a horizontal direction corresponding to each display panel one-to-one with the panel original portion, and the contact blocks A circuit board for inspecting the display panel is provided so that each display panel is inspected on the circuit board of the contact blocks in the process of repeating the movement of the panel disk through the transfer robot. In the, the pallet is provided with LM guides and LM guide blocks, and each LM guide block is provided with an X-axis block for fixing the respective contact blocks and moving along the LM guides; The pallet is provided with a plurality of spacing holders above each of the LM guides, wherein the spacing holders are placed between the X-axis blocks; In addition, X-axis adjustment screws are provided on both sides of each X-axis block to be loosely fitted to the screw penetration portions of the space-holding devices, and the adjustment nuts fastened to the X-axis adjustment screws are provided with side surfaces of the space-holding devices. It is characterized in that the X-axis block is finely adjusted between the gap holders in close contact.

According to the present invention, the panel discs are mounted on the transfer robot, and the display panels are analyzed by one-to-one contact with each contactor fixedly provided on a pallet separated from the panel disc during the vertical movement while being intermittently transferred, and the contactors are analyzed. It is finely adjusted in the X-axis and Y-axis directions.

Since the display panels formed on the panel disc have various standards, it is necessary to finely adjust the positions of the contactors accordingly when the size of the display panel to be inspected changes. If the adjustment is not possible, the position of each contactor needs to be replaced with a new adjusted pallet, which adds to the economical burden of having multiple pallets. The present invention has the advantage of being able to reduce the cost of the panel discs of various sizes with one pallet.

1 is a perspective view of a positioning device according to an embodiment of the present invention
Figure 2 is an exploded perspective view of a part of the positioning device of an embodiment of the present invention
Figure 3 is a cross-sectional plan view of the positioning device of an embodiment of the present invention
Figure 4 is a side cross-sectional view of the positioning device of an embodiment of the present invention

The positioning device of one embodiment of the present invention in FIGS. 1 to 4 is provided with a pallet 10 that is fixedly placed under the panel disc 60, and the pallet 10 has a plurality of contact blocks 20 at equal intervals. It is equipped with. The contact blocks 20 are provided in a line corresponding to the X axis among a plurality of display panels formed in the X-axis and the Y-axis on the panel original 60, and the panel original 60 is transferred to the Y-axis by a transfer robot. During the intermittent movement, the display panels are moved up and down in the Z axis so as to contact each contact block 20.

An LM guide 11 is provided on the pallet 10 along the X axis, and the LM guide 11 is provided with a plurality of LM guide blocks 12 corresponding to each contact block 20, and each contact block 20 are mounted on the corresponding LM guide block 12 through the X-axis block 30. The pallet 10 is provided with a plurality of spacing holders 13 above the LM guides 11, which are placed between the X-axis blocks 30.

X-axis adjusting screw 31 and adjustment as a means to allow the X-axis block 30 to be finely adjusted along the LM guide 11 along the X-axis along the LM guide 11 on the opposing surfaces of the gap maintaining device 13 and the X-axis block 30 The nut 32 is provided. The X-axis adjustment screw 31 is fitted with a pin hole 34 formed at a side of the X-axis block 30, and the X-axis adjustment screw 31 is connected to the X-axis block 30. It is fixed, and the adjustment nut 32 is fastened to the X-axis adjustment screw 31 to be in close contact with the side surface of the gap holding device 13. At this time, the adjustment nut 32 is separated from the side surface of the X-axis block 30 so that the micro-adjustment can tighten the adjustment nut 32 to the X-axis block 30. In addition, the gap maintaining portion 13 is provided with a screw through portion 14 into which the X-axis adjusting screw 31 is loosely fitted, so that when fine-tuning, the X-axis adjusting screw 31 interferes with the gap maintaining portion 13 inside. It is fitted without receiving.

On the upper portion of the contact block 20, a Y-axis block 40 to which the circuit board 50 is fixed is provided to be finely adjusted along the Y-axis. To this end, a pair of guide pins 21 spaced apart from each other is provided on the upper surface of the contact block 20, and the guide block 43 is inserted into the guide pin 21 and guided in the Y-axis. It is equipped. In addition, a pair of screw holes 22 spaced apart from each other are drilled on the front surface of the contact block 20, and a Y-axis adjustment screw 41 is provided in each screw hole 22, so that the front surface of the Y-axis block 40 is provided. And ends.

And between the rear of the Y-axis block 40 and the contact block 20 is provided with a pair of springs 42 corresponding to the Y-axis adjustment screws 41, the Y-axis block 40 is elastic To move. In addition, on the upper side of the Y-axis block 40, there is provided a substrate hanger pin 46 to which the front end of the circuit board 50 is applied. The circuit board 50 and the Y-axis block 40 are provided with a substrate fixing screw 44. It is fixed to the contact block 20 through. At this time, the Y-axis block 40 is provided with a screw guide hole 45 into which the substrate fixing screw 44 is loosely fitted. In the above, the front end of the circuit board 50 is provided with a terminal part in contact with the pad of the display panel, a flexible printed circuit board (FPCB), a microelectromechanical systems (MEMS) FPCB, a blade contactor or It is composed of one of pin contactors.

In one embodiment of the present invention configured as described above, the contact block 20 is fixed to the LM guide block 12 through the X-axis block 30, and the LM guide block 12 is arranged along the LM guide 11 in the X-axis. Is moved. And each of the contact blocks 20, the control nuts 32 provided on both sides of the X-axis block 30 in the state of being spaced between the space holders 13 provided at equal intervals on the pallet 10, the corresponding spacing The X-axis movement of the X-axis block 30 is restricted by being in close contact with the side surfaces of the retainers 13.

In addition, a Y-axis block 40 is provided above the contact block 20. The Y-axis block 40 is fitted with a guide hole 43 in the guide pin 21, and the Y-axis adjustment screw 41 and The Y-axis block 40 is finely adjusted through the spring 42, and the Y-axis block 40 is fixed to the contact block 20 through the substrate fixing screw 44.

The micro-adjustment fixing of one embodiment of the present invention assembled as follows is as follows. First, in order to adjust the contact block 20 in the X-axis, the adjustment nut 32 provided on one side of the X-axis block 30 is tightened toward the X-axis block 30 so as to fall off the side of the corresponding gap maintaining device 13. And by pushing the X-axis block 30 by a distance apart so that the adjustment nut 32 is in close contact with the side surface of the gap holder (13). At this time, the adjustment nut 32 of the opposite side is separated from the corresponding spacing holder 13, so if the opposite adjustment nut 32 is loosened toward the corresponding spacing holder 13, the X-axis blocks 30 are spaced on both sides. It is fixed between the retainers 13.

In the above, since the contact block 20 is mounted on the X-axis block 30, as a result, the position of the contact block 20 is finely adjusted to one side. Since the adjustment nut 32 is removed from the side surface of the X-axis block 30 and is closely adjusted to the gap maintaining device 13, when adjusting it again, tighten the adjustment nut 32 toward the X-axis block 30 Free space is available. And in the process of the X-axis block 30 is moved to one side so that the adjustment nut 32 is in close contact with the side surface of the spacing maintaining 13, the X-axis adjusting screw 31 is moved together to move the spacing of the spacing 13 As it is fitted with the screw through portion 14, fine adjustment is possible.

In order to adjust the Y-axis of the contact block 20, the Y-axis adjustment screw 41 is rotated forward. At this time, the spring 42 is compressed in the process that the end of the Y-axis adjustment screw 41 pushes the Y-axis block 40 in the Y-axis direction, and Y is the reaction force of the spring 42 that was compressed in the reverse rotation process. As the process in which the axis block 40 is returned to the original position is repeated, fine adjustment is possible. At this time, the Y axis block 40 is moved along the guide pin 21 provided in the contact block 20, so that the Y axis direction can be adjusted. Becomes When adjusting the Y-axis direction, first, the substrate fixing screw 44 must be loosened to allow the Y-axis block 40 to move in the contact block 20.

Through the above process, the contact block 20 is finely adjusted in the X-axis or Y-axis, so that the position of the circuit board 50 fixed to the contact block 20 is adjustable. Therefore, there is an advantage in that the display panels of various sizes formed on the panel original 60 can be inspected with a single pallet 10.

10: Palette 11: LM Guide
12: LM Guide Block 13: Spacing
14: screw penetration 20: contact block
21: guide pin 22: screw hole
30: X axis block 31: X axis adjustment screw
32: Adjustment nut 40: Y-axis block
41: Y-axis adjustment screw 42: Spring
43: guide hole 44: substrate fixing screw
50: circuit board 60: panel original

Claims (3)

A display panel arranged vertically and horizontally is provided on a panel original plate, and a pallet having a plurality of contact blocks arranged in a horizontal direction corresponding to each display panel is provided on a lower portion of the panel original plate, and the contact blocks display each display panel. A circuit board for inspecting a contactor positioning device for inspecting a display panel in which the display panel is inspected on the circuit board of the contact blocks in the process of repeating movement and lifting of the panel original through the transfer robot,
LM guides and LM guide blocks are provided on the pallet, and each LM guide block is provided with an X-axis block that fixes the contact blocks and moves along the LM guides;
The pallet is provided with a plurality of spacing holders above each LM guide, wherein the spacing holders are placed between the X-axis blocks; And
The X-axis adjusting screws are provided on both sides of each X-axis block, so that they are loosely fitted to the screw penetration portions of the respective gap-maintaining holes, and the adjusting nuts fastened to the X-axis adjusting screws are in close contact with the side surfaces of the gap-holding portions. The X-axis block is a contactor positioning device for inspecting a display panel, characterized in that to be finely adjusted between the spacing. According to claim 1,
Each contact block is provided with a Y-axis block having the circuit board. The front surface of the Y-axis block comes into contact with the ends of the Y-axis adjustment screws on both sides of the contact block, and the rear is supported by springs to rotate the Y-axis adjustment screws forward and backward. Positioning device for inspecting a display panel, characterized in that the Y-axis block is finely adjusted through compression and restoration of the spring. According to claim 2,
The contact block is provided with a pair of guide pins,
The Y-axis block is provided with a guide hole that is moved along the guide pin,
Display panel inspection contactor positioning device, characterized in that the circuit board is fixed to the Y-axis block through a substrate fixing screw that is loosely fitted into a pair of screw guide holes perforated in the Y-axis block and fastened to the contact block. .

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