KR20020065099A - Alignment apparatus to test position for LCD panel - Google Patents

Abstract

PURPOSE: A device for aligning LCD(Liquid Crystal Display) panel positions is provided to realize the ball screw type control operation for precisely controlling a testing position and mount a ball screw unit horizontally with respect to a driving surface of control plates for reducing the scale of the device. CONSTITUTION: A device for aligning LCD panel positions includes a supporting plate(200), a first control plate(210) secured to the supporting plate slidably in a first direction, a first driving element(211) coupled with the supporting plate at a side and coupled with the first control plate at the other side for sliding the first control plate in the first direction, a second control plate(220) secured to the first control plate slidably in a second direction, a second driving element(221) coupled with the first control plate at a side and the second control plate at the other side for sliding the second control plate in the second direction, a third control plate(230) rotatively supported by the second control plate, a third driving element(234) coupled with the second control plate at a side and axially coupled with the third control plate for driving the third control plate to rotate, and a to-and-fro driving element(250) penetrating the supporting plate and the first to third control plates for controlling to-and-fro position of an LCD panel with respect to a test board.

Description

Alignment apparatus to test position for LCD panel}

The present invention relates to an LCD panel position alignment device, and more particularly, to a position adjustment device of the automatic LCD panel inspection device to adjust the inspection position of the LCD panel transferred from the conveying means.

In general, LCD panels are manufactured through various manufacturing processes. At this time, the LED panel is turned on when each manufacturing process, for example, an assembly process such as soldering or a repair process of a defective factor, is performed. The LCD panel manufactured by performing a predetermined lighting state test process of inspecting is always maintained at a predetermined level or more to be shipped as a product.

The conventional apparatus for inspecting an LCD panel is composed of an inspection apparatus having a rigid fixed stage and a conveying apparatus for transferring the LCD panel, which has been completed a predetermined process by the inspection apparatus, for the lighting state test.

This inspection device connects the transferred panel to the inspection signal generator, makes electrical contact with the LCD panel connected to the inspection signal generator, and transmits the electric lighting state test signal output from the test circuit. The lamp is properly lit to emit light to the outside through the LCD panel.

In this process, the visual state of the screen displayed on the LCD panel is visually inspected through visual observation. Accordingly, the light source lighting state of the LCD panel is properly detected, and the LCD panel, which is determined to be defective according to the detection result, is separated and transported so that its function is restored after an appropriate subsequent process.

On the other hand, such an LCD panel inspection device has a plurality of contact needles for transmitting and receiving electrical signals in contact with the contact pads of the transferred LCD panel, the LCD panel so that the contact needles of the transferred LCD panel and the precise contact closely It is provided with an adjusting device for adjusting the test position of the variable.

This control must be made for the X-axis, Y-axis, and Z-axis and rotational position θ with respect to the installation state so that the contact pad of the LCD panel is correctly contacted with the contact needle.

To this end, the control device provided in the conventional LCD panel inspection device is implemented in the cam or ball screw method that is driven by the motor and the motor is configured for such a contact position adjustment.

However, in the case of the ball screw type of the conventional adjusting device, since the devices such as the ball screw, the support part, and the motor bracket are installed perpendicular to the driving surface, the height step, processing error, and assembly error of the installed parts are considerably increased. There is a problem that does not perform the correct position adjustment function of the device.

In the case of the cam method, the installation space is consumed according to the shape and installation state of the cam, and there is a limit in reducing the size of the device. In addition, there is a problem in that control is difficult because the displacement amount is not constant according to the displacement angle.

The present invention is to solve the above-mentioned problems, an object of the present invention is to adjust the ball screw method is implemented, the ball screw device to be implemented horizontally with respect to the drive surface for adjustment to reduce the scale of the device It is to provide an LCD panel position aligning device having an adjusting device so as to enable a precise position control at the same time.

1 is a side view showing the LCD panel position alignment device according to the present invention.

Figure 2 is a side view showing a test board adjusting device installed in the LCD panel alignment device according to the present invention.

Figure 3 is an exploded perspective view showing a test board adjusting device installed on the LCD panel alignment device according to the present invention.

Figure 4 is an enlarged perspective view showing the first and second drive member installed in the LCD panel alignment device according to the present invention.

5 is an enlarged perspective view illustrating a third driving member installed in the LCD panel alignment device according to the present invention.

Figure 6 is a perspective view showing the installation of the tension spring installed in the LCD panel alignment device according to the present invention.

** Description of the symbols for the main parts of the drawings **

100 ... body

110 ... test board

140.Workbench

200 ... support plate

210 ... first throttle

220.2nd throttle

230 ... third throttle

240 ... drive shaft

250 ... rear drive member

LCD panel positioning device according to the present invention for achieving the above object is a support plate; A first control plate slidably seated on the support plate in a first direction; A first driving member coupled to the support plate and coupled to the first control plate to slide the first control plate in the first direction; A second control plate slidably seated in the second direction in the first control plate; A second driving member coupled to the first control plate and coupled to the second control plate to slide the second control plate in the second direction; A third control plate rotatably supported by the second control plate; A third driving member which drives the third control plate, one side of which is coupled to the second control plate, and the other side of which is axially coupled to the third control plate to rotate the third control plate; And a front and rear drive member installed through the support plate, the first control plate, the second control plate, and the third control plate to drive the front and rear positions of the LCD panel with respect to the test board.

The first driving member according to the present invention includes a first case coupled to one side of the support plate and a first ball screw installed in the first case and driven by a motor in a first direction by the first ball screw. Drive to but includes a first bracket coupled to the first control plate.

In addition, the second driving member according to the present invention is a second ball screw and the second ball screw installed in the second case and the second case coupled to one side to the first control plate to be rotated forward and backward by a motor It is driven in a second direction by the second bracket includes a second bracket coupled to the.

And the third drive member according to the present invention is installed in the third case and the third ball screw and the third ball screw installed in the third case and the third case coupled to the second control plate and rotated by a motor. It drives in a third direction by including a drive shaft coupled to the third throttle plate.

On the other hand, the third control plate according to the present invention is formed with a driving hole is inserted into the drive shaft so that the second control plate in accordance with the linear movement of the drive shaft is rotatable.

And the third case is provided with a support member for preventing the drive shaft from twisting by the rotation operation of the third ball screw.

In addition, between the second control plate and the third control plate according to the present invention, one side is coupled to the second control plate, the other side is characterized in that it comprises at least one tension cylinder coupled to the third control plate.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the drawings.

LCD panel position alignment device according to the present invention forms an appearance as shown in Figure 1 is equipped with a test board 110 and a position inspection camera (not shown) and an inspection microscope (unsigned) is installed on the front contact needle The main body 100 is provided, and a transfer means for moving the LCD panel transferred from the outside to the test part is provided on the upper side of the main body 100.

Here, the transfer means includes a first transfer device 120 for transferring the LCD panel upward and a second transfer device 130 for transferring the LCD panel transferred upward to the test board 110 located at the front lower side of the main body 100. Is prepared.

And, the LCD panel conveyed from the transfer means is provided with a control means for adjusting the mounting position of the LCD panel so that the contact pad of the LCD panel is in contact with the contact needle provided on the test board 110.

This adjusting means has a support plate 200 provided with a rectangular plate body supported inside the main body 100, as shown in Figs. The first control plate 210 is slidably supported in one direction by two LM guides 212 on the outer surface of the support plate 200. Here, the first control plate 210 is in a state of being sliding support in the first direction, that is, the X-axis direction.

In addition, a first driving member 211 for driving the first control plate 210 is provided. As shown in FIG. 4, the first driving member 211 includes a first case 213 coupled to a support plate 200 on one side thereof. The first driving member 211 extends from one side of the first case 213 and has a first adjustment plate. A first bracket 214 coupled to 210 is provided.

In addition, the first case 213 is rotated by a motor (not shown), but the first bracket 214 is coupled on the shaft to drive the first bracket 214 sliding about the X-axis direction in the first direction One ball screw 216 is mounted.

Next, a rectangular plate body slidably supported on the first control plate 210 by two LM guides 222 extending in a second direction, that is, in the Y-axis direction, between the upper surface of the first control plate 210. The second control plate 220 is provided. The second control plate 220 is slid with respect to the Y-axis direction.

In addition, a second driving member 221 is provided to drive the second control plate 220. As shown in FIG. 4, the second driving member 221 includes a second case 223 coupled to the first adjustment plate 210, and is installed to extend from one side of the second case 223. A second bracket 224 coupled to the control plate 220 is provided. The second ball screw 226 is rotated by a motor (not shown) inside the second case 223, but the second bracket 224 is coupled on the shaft to drive the second bracket 224 sliding about the Y axis. ) Is installed.

Subsequently, the third control plate 230 supported by the circular LM guide 239 is disposed on the upper surface of the second control plate 220 in a ring shape between the second control plate 220. The third adjustment plate 230 is to be adjusted for the rotation angle.

And the third drive member 234 for driving the third control plate 230 is provided. As shown in FIG. 5, the third driving member 234 is supported by the third case 235 and the third case 235 coupled to the second control plate 220 and extends toward the third control plate 230. The drive shaft 240 is provided.

Here, the third adjustment plate 230 is provided with a shaft coupling bracket 231 is coupled to the drive shaft 240, the driving hole 232 is formed in the shaft coupling bracket 231 is coupled to the shaft shaft 232 ) Is formed as a long hole having an eccentric width to compensate for the angular deviation caused by the rotation of the third adjustment plate (230).

In addition, a third ball screw 238 is installed in the third case 235 to rotate by a motor (not shown) and move the driving shaft 240 to one side or the other side in the rotational direction. Accordingly, as the third adjusting plate 230 is driven by the driving shaft 240 sliding in the driving hole 232 according to the movement of the driving shaft 240, the third adjusting plate 230 performs a rotation operation by the shaft coupling bracket 231. Do it.

On the other hand, since the drive shaft 240 is axially coupled to the shaft coupling bracket 231 of the third adjustment plate 230 in the third case 235, a gap of a predetermined size is formed between the driving hole 232 and the driving hole 232. Have. Therefore, the drive shaft 240 receives a rotational force in the rotational direction of the third ball screw 238 by the rotation operation of the third ball screw 238, the installation and operating position of the drive shaft 240 to maintain the rotational force at this time A support member 236 is provided to firmly support the drive shaft 240 to the third case 235 so that the drive shaft 240 can be secured.

The support member 236 has an inner end coupled to the third ball screw 238 and the drive shaft 240, respectively, and an outer end thereof extends to one side of the third case 235 to be connected to the outer surface of the third case 235. It is provided with a plate body supported by the LM guide 241 in between.

And a tension cylinder 233, one side is coupled to the second control plate 220, the other side is coupled to the third control plate 220 between the second control plate 220 and the third control plate 230 is installed.

As shown in FIG. 6, the tension cylinder 233 is elastically supporting the third control plate 220 with respect to the second control plate 220 in one direction so that the tension cylinder 233 is fitted into the drive hole 232 of the shaft coupling bracket 231. The 240 maintains its position in close contact with one side of the driving hole 232. Therefore, it serves to reduce the operation error of the third control plate 230 according to the rotation operation of the third control plate 220 to a minimum.

In addition, two tension cylinders 233 of the present invention are elastically supporting the third control plate 230 provided between the second control plate 220 and the third control plate 230 so as to be supported with respect to the same direction. Doing.

Next, the front and rear driving member 250 is provided to drive the test board 110 back and forth in the vertical direction which is the Z axis to perform the position adjustment.

The front and rear driving member 250 penetrates all the central portions of the first control plate 210 and the second control plate 220 and the third control plate 230 from the support plate 200 and then coupled to the third control plate 230. The fourth case 254 and the ball screw 252 installed in the vertical direction with respect to the test board 110 in the fourth case 254.

In addition, the ball screw 252 is configured to include a motor (not shown) installed inside the fourth case 254 to drive the ball screw 252.

On the other hand, a rectangular reference body 260 is mounted in the central portion of the operating shaft 251, and a backlight 290 is mounted in front of the reference body 260. In addition, the worktable 140 on which the LCD panel is seated in front of the backlight 290 is installed.

A support 270 supported by the LM guide is installed between both ends of the reference body 260 to guide the forward and backward operation according to the above-described driving of the front and rear drive member 250 of the reference body 260. have.

Hereinafter, the operation state of the LCD panel position alignment device according to the present invention configured as described above will be described.

In the LCD panel position alignment device according to the present invention, when the LCD panel is transferred from the outside to the inspection apparatus, the LCD panel is loaded into the first first transfer device 120, and then the first transfer device 120 moves to move the LCD panel. To the upper side of the main body 100.

And the LCD panel transferred to the upper side of the main body 100 is transferred to the lower side of the front surface of the main body 100 through the second transfer device 130 is transferred to the test board 110 provided on the front surface of the main body 100 after the work table ( Since the position of the work bench 140 is adjusted after being seated at 140, the contact needle of the test board 110 and the contact pad of the LCD panel come into contact with each other.

At this time, the contact state of the contact needle of the test board 110 and the contact pad of the LCD panel is controlled by the adjusting means so that an appropriate contact state between the transferred LCD panel and the test board 110 is achieved. The contact position of the work table 140 is adjusted.

At this time, the adjustment action for the work table 140 is controlled for the X axis by the first control plate 210, and when the adjustment for the Y axis is performed by the second control plate 220, the third control plate 230 By the adjustment for the rotation position is performed. And the Z-axis adjustment is performed by the front and rear drive member 250.

In more detail, the adjustment operation for each of these directions will be described in detail. First, in the X-axis direction, a motor (not shown) provided in the first case 213 is driven to drive the first ball screw 216 in one direction or the X axis. As it rotates in the other direction, the first control plate 210 is guided by the LM guide 212 with respect to the X-axis direction by applying power by the first bracket 214 to perform position adjustment in the X-axis direction. do.

In addition, the second adjustment plate 220 is driven by a motor (not shown) provided in the second case 223 to drive the second ball screw 226 in one direction or the other direction with respect to the Y axis to the second bracket 224. The position adjustment with respect to the Y axis is performed by driving the second control plate 220 in one direction or the other direction with respect to the Y axis.

Subsequently, when the motor (not shown) provided in the third case 235 drives the third ball screw 238, the third adjustment plate 230 drives the drive shaft 240 installed in the third case 235. The driving shaft 240 is applied to the driving hole 232 formed in the shaft coupling bracket 231 of the third adjustment plate 230, while the driving shaft 240 slides inside the driving hole 232, and the third adjustment plate 230 is a circular LM guide ( 239) to be rotated and controlled.

In addition, the adjustment of the Z axis is performed by a motor (not shown) of the front and rear drive member 250 to drive the fourth ball screw 252 back and forth, thereby driving the operating shaft 251 in the front and rear directions, thereby causing the reference body ( 260 is moved in the front and rear direction so that the position adjustment is made.

At this time, the reference body 260 is guided in the front and rear direction by the support 270 mounted on both ends of the LM guide between, the X-axis, Y-axis, and Z-axis and rotation direction at the end By performing the adjustment for the LCD panel seated on the workbench 140 is the correct position for the contact needle of the test board 110 is made.

Then, the contact is performed to make an electrical contact with the LCD panel, and then a test for the LCD panel is performed by transmitting a test signal.

The adjustment means installed in the LCD panel position alignment device according to the present invention as described above allows the installation of each drive member to be mounted in a horizontal state with respect to the adjustment plate to reduce the overall appearance size of the device. In addition, the use of a high-precision ball screw allows the contact change to be precisely maintained during repeated test contact, thereby maximizing the operation efficiency of the device.

Test position adjusting means installed in the LCD panel alignment device according to the present invention as described above, but the adjustment operation is implemented in a ball screw method, the ball screw device is installed horizontally with respect to the drive surface of the adjustment plate for adjustment device It is possible to reduce the size of the circuit board, and at the same time, precise position control can be performed to improve the test efficiency of the LCD panel.

Claims (7)

Support plate; A first control plate slidably seated on the support plate in a first direction; A first driving member coupled to the support plate and coupled to the first control plate to slide the first control plate in the first direction; A second control plate slidably seated in the second direction in the first control plate; A second driving member coupled to the first control plate and coupled to the second control plate to slide the second control plate in the second direction; A third control plate rotatably supported by the second control plate; A third driving member which drives the third control plate, one side of which is coupled to the second control plate, and the other side of which is axially coupled to the third control plate to rotate the third control plate; LCD panel, characterized in that it is provided through the support plate, the first control plate and the second control plate and the third control plate, the front and rear drive member for driving back and forth to adjust the front and rear position with respect to the test board of the LCD panel. Position alignment device. According to claim 1, wherein the first driving member is installed by the first ball screw and the first ball screw installed inside the first case and the first case coupled to the support plate to the forward and reverse by a motor An LCD panel positioning device, comprising: a first bracket driven in a first direction and coupled to the first control plate; The second ball screw and the second ball screw of claim 1, wherein the second driving member is installed inside a second case coupled to the first control plate and inside the second case so as to be rotated forward and backward by a motor. Drive by the second direction by the LCD panel position alignment device, characterized in that it comprises a second bracket coupled to the second control plate. According to claim 1, wherein the third driving member is a third ball screw and the third ball screw installed in the third case and the third case coupled to the second control plate and the inside of the third case is rotated by a motor By driving in a third direction by the LCD panel position alignment device, characterized in that it comprises a drive shaft coupled to the third control plate. According to claim 4, wherein the drive panel is fitted to the third control plate LCD panel position alignment device characterized in that the drive hole formed in the long hole so that the second control plate in accordance with the linear movement of the drive shaft is formed to rotate. The apparatus of claim 4, wherein the third case is provided with a supporting member that prevents the drive shaft from being twisted by the rotation of the third ball screw. The LCD panel of claim 1, wherein one side of the LCD panel comprises at least one tension cylinder coupled between the second control plate and the third control plate, and the other side coupled to the second control plate. Position alignment device.