KR20040076419A - Apparatus and method for inspection of liquid crystal display device - Google Patents

Abstract

PURPOSE: A test device of an LCD device is provided to comprise the first and second driving bars which perform a straight line motion in X-axis/Y-axis directions on an upper jig, thereby shortening a transfer distance of the first and second driving bars without changing the upper jig. CONSTITUTION: An upper jig(140) is vertically installed on a support plate(120) by driving shafts(124). A panel jig(130) is installed on the support plate(120) to pierce through the upper jig(140) by fixing shafts(134). The upper jig(140) has a window(144) into which the panel jig(130) is inserted, the first driving bar(150) installed on one edge, and the second driving bar(152) installed on one edge to be orthogonal with the first driving bar(150). The first and second driving bars(150,152) are installed on the upper jig(140) to be orthogonal with each other.

Description

Inspection device and method of liquid crystal display device {APPARATUS AND METHOD FOR INSPECTION OF LIQUID CRYSTAL DISPLAY DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an inspection apparatus for a liquid crystal display device, and more particularly, to an inspection apparatus and method for inspecting an adhesion defect of a tape carrier package regardless of a model of a liquid crystal panel.

An active matrix liquid crystal display device displays a natural moving image using a thin film transistor (hereinafter, referred to as TFT) as a switching element. Such a liquid crystal display device can be miniaturized compared to a CRT and commercialized as a monitor such as a portable television or a laptop-type personal computer.

Referring to FIG. 1, a general liquid crystal display device 10 includes a liquid crystal panel 11 in which two substrates are spaced at predetermined intervals, and a liquid crystal is injected therein, and a pad electrode formed on one side of the substrate and connected to an external circuit. And the pad electrodes 15 through a tape carrier package (hereinafter referred to as "TCP") 12 in which a plurality of integrated circuits 13 are mounted. A printed circuit board 14 (hereinafter referred to as "PCB") is provided.

The liquid crystal panel 11 includes a spacer (not shown) for injecting liquid crystal between the upper substrate and the lower substrate and for maintaining a constant gap between the upper substrate and the lower substrate. The upper substrate of the liquid crystal panel 11 is formed with a color filter, a common electrode, a black matrix, and the like, not shown. In addition, signal lines such as data lines and gate lines (not shown) are formed on the lower substrate of the liquid crystal panel 11, and thin film transistors (hereinafter referred to as TFTs) are formed at intersections of the data lines and the gate lines. Is formed. The TFT switches the data signal to be transmitted from the data line toward the liquid crystal cell in response to the scan signal (gate pulse) from the gate line. The pixel electrode is formed in the pixel region between the data line and the gate line.

The pad electrodes 15 formed on one side of the lower substrate are divided into a data pad region and a gate pad region connected to the data lines and the gate lines, respectively.

Circuit components for driving the liquid crystal panel 11 are mounted on the PCB 14, and the circuit components are used to drive a plurality of integrated circuits 13 mounted on the TCP 12. Accordingly, the TCP 12 supplies data signals and scan signals from the plurality of integrated circuits 13 to the data lines and the gate lines, respectively.

The TCP 12 is attached to the pad electrodes 15 of the liquid crystal panel 11 by a tape automated bonding (hereinafter, referred to as "TAB") method. As such, when the TCP 12 having the plurality of integrated circuits 13 mounted thereon is attached to the pad electrodes 15 of the liquid crystal panel 11 by the TAB method, the liquid crystal panel 11 through the TCP 12. A test pattern signal (red (R), green (G), blue (B), and gray)) is applied to the TCP 12 to check the adhesion failure.

To this end, the inspection apparatus of the conventional liquid crystal display device is installed on the plate 20, the lower jig 30, which is installed on one side of the plate 20, and one side of the plate 20, as shown in FIG. An upper jig 50 which linearly moves on the lower jig 30 and vertically moves toward the lower jig 30 is provided.

The lower jig 30 is installed and fixed to one side of the plate 20 by the support shaft 32. The lower jig 30 has a window 34 formed to have a stepped surface 35 in the center as shown in FIG. 3A, a first PCB 36 installed at an upper edge, and a left edge. A second PCB 38 is provided.

The liquid crystal panel 11 is mounted on the stepped surface 35 of the window 34 as illustrated in FIG. 3B. At this time, the TCP 12 connected to the pad electrodes of the liquid crystal panel 11 is folded on the first PCB 36 and the second PCB 38 in a folded form.

The first and second PCBs 36 and 38 include circuit components for applying a tester pattern signal through the TCP 12 of the liquid crystal panel 11 seated on the step surface 35 of the window 34. .

The lower jig 30 applies a signal to the TCP 12 according to the model of the liquid crystal panel 11 using the first and second PCBs 36 and 38.

As shown in FIG. 4, the upper jig 50 is supported by the driving shaft 52, and the driving shaft 52 is linearly and vertically moved by a driving device (not shown). In the upper jig 50, a window 54 is formed at the center portion, and a first press bar 56 and a second press bar 58 orthogonal to the first press bar 56 are provided on the rear surface. The upper jig 50 is vertically moved by the driving device (not shown) to have a step with the lower jig 50 and linearly opposed to the lower jig 50.

The inspection apparatus of the conventional liquid crystal display device inspects the adhesion failure of the TCP 12 attached to the liquid crystal panel by the steps as shown in FIGS. 5A and 5B.

First, in the waiting time for inspecting the adhesion failure of the TCP 12 attached to the liquid crystal panel 11, the upper jig 50 does not face the lower jig 30 as shown in FIG. 5A. It is located on one side of the statue. That is, the upper jig 50 is positioned side by side with the lower jig 30 on one side of the plate 20.

While the upper jig 50 is waiting at the position parallel to the lower jig 30, the stepping surface 35 of the window 34 formed on the lower jig 30 is placed on the loading device of the liquid crystal panel 11 (not shown). As a result, the liquid crystal panel 11 is loaded and seated. As the liquid crystal panel 11 is seated on the step surface 35 of the window 34 formed on the lower jig 30, each of the plurality of TCPs 12 attached to the liquid crystal panel 11 is formed of a first PCB and a second PCB. (36, 38) is folded over.

When the liquid crystal panel 11 is loaded and seated on the window 34 on the lower jig 30, the upper jig 50 rises by the driving device, and then linearly moves to face the lower jig 30. That is, the upper jig 50 is positioned by the drive of the driving device along the LM guider (not shown) and the position of the first and second PCBs 36 and 38 on the lower jig 30 and the first and second of the upper jig 50. The second press bars 56 and 58 are linearly moved to overlap each other.

Then, the upper jig 50 is lowered toward the lower jig 30 by the driving device. Each of the first and second press bars 56, 58 of the upper jig 50 is lowered by a drive while a plurality of TCPs folded on the first and second PCBs 36, 38 of the lower jig 30. 12) Each will be pressurized. Accordingly, each of the plurality of TCPs 12 is connected to each of the first and second PCBs 36, 38 by the first and second press bars 56, 58 of the upper jig 50. At this time, the moving distance of each of the first and second press bars 56 and 58 is approximately 300 mm or more.

When each of the plurality of TCPs 12 is connected to each of the first and second PCBs 36 and 38 by the first and second press bars 56 and 58, light from the backlight unit (not shown) is transferred to the liquid crystal panel ( 11) and a test pattern signal is supplied to each of the plurality of TCPs 12 from each of the first and second PCBs 36 and 38. Accordingly, each of the plurality of integrated circuits 13 mounted on each of the plurality of TCPs 12 receives the plurality of TCPs 12 in response to test pattern signals from each of the first and second PCBs 36 and 38. Through the test pattern signal is supplied to the liquid crystal panel 11.

Then, the system engineer determines the adhesion failure of the TCP 12 according to the test pattern signal displayed on the liquid crystal panel 11 through the window 54 of the upper jig 50.

The TCP defect inspection method using the inspection apparatus of the conventional liquid crystal display device has to replace the upper jig according to the model of the liquid crystal panel. The replacement jig of the upper jig becomes longer and workability is reduced.

Accordingly, it is an object of the present invention to provide an inspection apparatus and method for a liquid crystal display device capable of inspecting an adhesion failure of a tape carrier package regardless of a model of a liquid crystal panel.

1 is a perspective view showing a general liquid crystal display device.

2 is a schematic view showing an inspection apparatus of a conventional liquid crystal display.

3 is a perspective view showing the upper jig shown in FIG.

4A is a perspective view illustrating the lower jig shown in FIG. 2.

Figure 4b is a perspective view showing a lower jig fixed to the liquid crystal panel.

5A and 5B are diagrams illustrating an inspection method of a conventional liquid crystal display device.

6 is a perspective view illustrating an inspection apparatus of a liquid crystal display according to a first embodiment of the present invention.

7 is a perspective view illustrating a panel jig in which the liquid crystal panel is fixed and shown in FIG. 6;

8A and 8B illustrate an inspection apparatus of a liquid crystal display according to a first embodiment of the present invention.

9 is a perspective view illustrating an inspection apparatus of a liquid crystal display according to a second exemplary embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: liquid crystal display device 11,111,211: liquid crystal panel

12,112,212: TCP 14,36,38,136,138,236,238: PCB

20,120: support plate 30: lower jig

50,140: upper jig 56,58,156,158; Press bar

130220: Panel Jig 134,144: Windows

160,170: Servo Motor 150,152: Drive Bar

In order to achieve the above object, the inspection apparatus of the liquid crystal display according to the embodiment of the present invention is a liquid crystal panel, a fixing jig for supporting the liquid crystal panel, a tape carrier package attached to the liquid crystal panel, orthogonal to each other And a movable jig for transferring in the axial direction to press the tape carrier package toward the fixing jig.

The inspection apparatus of the liquid crystal display device further includes a support plate for supporting the fixed jig, and a drive shaft disposed between the support plate and the movable jig to up / down the movable jig.

In the inspection apparatus of the liquid crystal display, the movable jig is installed at one side of the movable jig and linearly moves in the X axis direction, and is installed at one side of the movable jig so as to be orthogonal to the X axis driver in the Y axis direction. It characterized in that it comprises a Y-axis drive unit for linear movement.

In the inspection apparatus of the liquid crystal display, the X-axis driving unit is connected to a first ball screw installed on the movable jig, a first servo motor for rotating the first ball screw, and the first ball screw. And a first driving bar linearly moving in the X-axis direction on the fixing jig by the rotation of the first ball screw.

In the inspection apparatus of the liquid crystal display device, the X-axis driving unit is installed on the first driving bar, and further comprises a first press bar for pressing the tape carrier package by the lowering of the movable jig.

In the inspection apparatus of the liquid crystal display, the X-axis driving unit is installed on the movable jig and installed on the first driving bar, and LM for guiding linear movement of the first driving bar by rotation of the first ball screw. It is characterized by further comprising a guider.

In the inspection apparatus of the liquid crystal display, the Y-axis driver is connected to a second ball screw installed on the movable jig, a second servo motor for rotating the second ball screw, and the second ball screw. And a second driving bar linearly moving in the Y-axis direction on the fixing jig by the rotation of the second ball screw.

In the inspection apparatus of the liquid crystal display device, the Y-axis driving unit is installed on the second driving bar, and further comprises a second press bar for pressing the tape carrier package by the lowering of the movable jig.

In the inspection apparatus of the liquid crystal display device, the Y-axis driving unit is installed on the movable jig and is installed on the second driving bar, and LM for guiding linear movement of the second driving bar by rotation of the second ball screw. It is characterized by further comprising a guider.

In the inspection apparatus of the liquid crystal display device, the movable jig is installed on one side of the fixing jig and linearly moves in the X axis direction, and is installed on one side of the fixing jig so as to be orthogonal to the X axis driving part in the Y axis direction. It characterized in that it comprises a Y-axis drive unit for linear movement.

In the inspection apparatus of the liquid crystal display, the X-axis driving unit includes a first driving bar that linearly moves in the X-axis direction on the fixing jig, a first driving unit that linearly moves the first driving bar, and the first driving unit is raised and lowered. It characterized in that it comprises a second drive unit.

The X-axis driving unit in the inspection apparatus of the liquid crystal display device is characterized in that it further comprises a first press bar for pressing the tape carrier package by the lowering of the first drive bar.

In the inspection apparatus of the liquid crystal display, the Y-axis driver includes a second drive bar that linearly moves in the X-axis direction on the fixing jig, a third drive that linearly moves the second drive bar, and the third drive part is raised and lowered. It characterized in that it comprises a fourth drive unit.

In the inspection apparatus of the liquid crystal display, the Y-axis driving unit is installed on the second driving bar, and further includes a second press bar for pressing the tape carrier package by the lowering of the second driving bar.

In the inspection apparatus of the liquid crystal display device, the fixed jig is provided with a printed circuit board connected to the tape carrier package pressed by the movable jig.

According to an exemplary embodiment of the present invention, a method of inspecting a liquid crystal display device includes fixing a liquid crystal panel to a fixing jig, and transferring the tape carrier package attached to the liquid crystal panel using a movable jig by transferring the liquid crystal panel in a direction perpendicular to each other. And pressing toward the jig.

The method of inspecting the liquid crystal display may further include up / down the movable jig.

Other objects and features of the present invention in addition to the above object will be apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 6 to 9.

6 and 7, an inspection apparatus for a liquid crystal display according to a first exemplary embodiment of the present invention includes a support plate 120 and an upper portion vertically installed on the support plate 120 by a drive shaft 124. A jig 140 and a panel jig 130 installed on the support plate 120 to penetrate the upper jig 140 by the fixed shaft 134.

The upper jig 140 includes a window 144 into which the panel jig 130 is inserted, a first driving bar 150 installed at one side edge, and a first side installed at one side edge to be orthogonal to the first driving bar 150. 2 drive bar 152 is provided. At this time, each of the first and second driving bars 150 and 152 is provided on the upper jig 140 to be orthogonal to each other in the two axis direction.

The window 144 is a rectangular hole in which the panel jig 130 is inserted by the vertical movement of the upper jig 140.

The first press bar 158 is installed on the rear surface of the first drive bar 150. The first driving bar 150 is transferred in the Y-axis direction by the Y-axis driver installed at one side of the upper jig 140. To this end, the Y-axis driving unit linearly moves by the rotation of the first servo motor 160 and the first servo motor 160 to rotate the first ball screw 162 installed at one edge of the upper jig 140. An LM guider for guiding the first driving bar 150 is provided.

One side of the first driving bar 150 is connected to the first ball screw 162. In addition, the sliders of the LM guider are installed on the rear surfaces of both ends of the first driving bar 150, and the rails 174a and 174b of the LM guider are installed at both edges of the upper jig 140. The first driving bar 150 is linearly moved in the Y-axis direction on the panel jig 130 by the guide of the LM guider as the first servo motor 160 of the Y-axis driving unit rotates. That is, the first ball screw 162 is rotated as the first servo motor 160 rotates, and the first drive bar 150 is guided by the LM guider by the rotation of the first ball screw 162. It is transferred in the Y-axis direction.

The second press bar 156 is installed on the rear surface of the second drive bar 152. The second driving bar 152 is transferred in the X-axis direction by the X-axis driving unit installed on one side of the upper jig 140. To this end, the X-axis driving unit linearly moves by the rotation of the second servo motor 170 and the second servo motor 170 for rotating the second ball screw 172 installed at one edge of the upper jig 140. An LM guider for guiding the second driving bar 152 is provided.

One side of the second driving bar 152 is connected to the second ball screw 172. In addition, the sliders of the LM guider are installed on the rear surfaces of both ends of the second driving bar 152, and the rails 154a and 154b of the LM guider are installed at both edges of the upper jig 140. The second driving bar 152 is linearly moved in the X-axis direction on the panel jig 130 by the guide of the LM guider as the second servo motor 170 of the X-axis driving unit rotates. That is, the second ball screw 172 is rotated as the second servo motor 170 rotates, and the second drive bar 152 is guided by the LM guider by the rotation of the second ball screw 172. It is transferred in the X axis direction.

The upper jig 140 is up and down by driving of the drive shaft 124 installed on the support plate 120. At this time, each of the first and second press bars 158 and 156 installed on the first and second driving bars 150 and 152 of the upper jig 140 may have a panel jig 130 when the upper jig 140 is down. In this case, the TCP 112 of the liquid crystal panel 111 seated on the upper surface of the liquid crystal panel 111 is pressed. Here, each of the first and second press bars 158 and 156 may have a different height. That is, the height of the first press bar 158 may be lower than the second press bar 156, and vice versa.

The panel jig 130 is installed to be fixed on the plate 120 by the support shaft 134. The panel jig 130 has a window 134 formed to have a stepped surface 135 in the center, a first PCB 136 installed at an upper edge, and a second PCB 138 installed at a left edge. It is provided.

As shown in FIG. 7, the liquid crystal panel 111 is mounted on the stepped surface 135 of the window 134. At this time, the TCP 112 connected to the pad electrodes (not shown) of the liquid crystal panel 111 is placed on the first PCB 136 and the second PCB 138 in a folded form.

The first and second PCBs 136 and 138 may include circuit components for applying a tester pattern signal through the TCP 112 of the liquid crystal panel 111 seated on the stepped surface 135 of the window 134. .

The panel jig 130 applies a signal to the TCP 112 attached to the liquid crystal panel 111 using the first and second PCBs 136 and 138. At this time, the TCP 112 varies depending on the size of the liquid crystal panel 111.

The inspection method of the liquid crystal display device according to the first embodiment of the present invention using the inspection device of the liquid crystal display device according to the first embodiment of the present invention will be described with reference to FIGS. 8A and 8B.

First, each of the first and second driving bars 150 and 152 may be positioned at the edge of the upper jig 140 in a waiting time for inspecting the adhesion failure of the TCP 112 attached to the liquid crystal panel 111. That is, the first driving bar 150 is positioned at the upper edge of the upper jig 140, and the second driving bar 152 is positioned at the left edge of the upper jig 140.

As such, the first and second driving bars 150 and 152 are not shown in the step surface 135 of the window 134 formed on the panel jig 130 while waiting at the edge of the upper jig 140. The liquid crystal panel 111 is loaded and seated by the loading device of the liquid crystal panel 111. As the liquid crystal panel 111 is seated on the stepped surface 135 of the window 134 formed on the panel jig 130, each of the plurality of TCPs 112 attached to the liquid crystal panel 111 may have a first PCB and a second PCB. 136 and 138.

When the liquid crystal panel 111 is loaded and seated on the window 134 formed on the panel jig 130, the first driving bar 150 is the first PCB 136 installed on the panel jig 130 by the Y-axis driver. It will move linearly toward). At the same time, the second driving bar 152 is linearly moved toward the second PCB 138 installed on the panel jig 130 by the X-axis driving part. At this time, the movement distance of each of the first and second driving bars 150 and 152 is about 50 mm or less, which is very small compared to about 300 mm or more, which is the movement distance of the conventional upper jig.

When the first and second driving bars 150 and 152 are linearly moved in such a manner as to overlap each of the first and second PCBs 136 and 138 installed in the panel jig 130, the upper jig 140 may include a driving shaft ( 124 is lowered toward the panel jig 130 by the vertical movement. Accordingly, each of the first and second press bars 158 and 156 installed on the rear surface of each of the first and second driving bars 150 and 152 presses each of the plurality of TCPs 112 and thus on the panel jig 130. It is connected to each of the first and second PCBs 136 and 138.

When each of the plurality of TCP 112 is connected to each of the first and second PCBs 136, 138 by the first and second press bars 158, 156, it is not shown installed on the back of the panel jig 130 The light from the backlight unit is irradiated to the liquid crystal panel 111 and simultaneously supplies a test pattern signal to each of the plurality of TCPs 112 from each of the first and second PCBs 136 and 138. Accordingly, each of the plurality of integrated circuits 113 mounted on each of the plurality of TCPs 112 receives the plurality of TCPs 112 in response to test pattern signals from each of the first and second PCBs 136 and 138. Through the test pattern signal is supplied to the liquid crystal panel 111.

Then, the system engineer determines the adhesion failure of the TCP 112 according to the test pattern signal displayed on the liquid crystal panel 111 through the window 134 of the panel jig 130.

As such, the inspection apparatus and method of the liquid crystal display according to the first exemplary embodiment of the present invention transfer the first and second driving bars 150 and 152 at the same time to the first and second PCBs 136 and 138. By pressing the placed TCP 112, the transfer distance of the first and second drive bars 150 and 152 can be shorter than before, and the upper jig 140 according to the model of the liquid crystal panel 111 is not required to be replaced. do. Therefore, the inspection apparatus of the liquid crystal display device according to the first embodiment of the present invention does not require replacement time of the upper jig 140, thereby shortening the inspection time and improving productivity.

9, an inspection apparatus of a liquid crystal display according to a second exemplary embodiment of the present invention includes a panel jig 220, a window formed to have a stepped surface on the panel jig 220, and a panel jig 220. X-axis installed on one side of the X-axis to up / down and linearly move in the X-axis direction while up / down the first press bar 278 and the first press bar 278 A second press bar 268 installed at one side of the driving unit 280 and the panel jig 220 to be orthogonal to the first press bar 278 and moving up / down and linearly moving in the Y-axis direction; The Y-axis driving unit 250 which moves the press bar 268 up and down and linearly moves in the Y-axis direction is provided.

A first PCB 238 is installed between the X-axis driver 280 and the window on the panel jig 220, and a second PCB 236 is installed between the Y-axis driver 250 and the window.

The liquid crystal panel 211 is mounted on the stepped surface of the window. At this time, the TCP 212 connected to the pad electrodes (not shown) of the liquid crystal panel 211 is placed on the first PCB 238 and the second PCB 236 in a folded form. Each of the first and second PCBs 238 and 236 includes circuit components for applying a tester pattern signal through the TCP 212 of the liquid crystal panel 211 mounted on the step surface of the window.

The panel jig 220 applies a signal to the TCP 212 attached to the liquid crystal panel 211 using the first and second PCBs 238 and 236. In this case, the TCP 212 varies depending on the size of the liquid crystal panel 211.

The first press bar 278 is moved up / down on the panel jig 220 by the X-axis driver 280 and is linearly moved so that the TCP 212 attached to the liquid crystal panel 211 is mounted on the panel jig 220. It is pressed onto the installed first PCB 238. To this end, the X-axis driver 280 is installed on the first driver 274 for linearly moving the first press bar 278 and the panel jig 220 and up / down the first driver 274. The second drive unit 270 is provided. The second drive unit 270 raises and lowers the first drive unit 274 connected to the drive shaft 272 by up / down the drive shaft 272 using an air / hydraulic cylinder (not shown). Accordingly, the first press bar 278 is raised and lowered by the second driver 270 and linearly moved by the first driver 274.

The second press bar 256 is up / down by the Y-axis driver 250 on the panel jig 220 and is linearly moved so that the TCP 212 attached to the liquid crystal panel 211 is mounted on the panel jig 220. It is pressed onto the installed second PCB 236. To this end, the Y-axis driver 250 is installed on the first driver 264 to linearly move the second press bar 256, the panel jig 220, and up / down the first driver 264. The second drive unit 260 is provided. The second drive unit 260 raises and lowers the first drive unit 264 connected to the drive shaft 262 by up / down the drive shaft 262 using an air / hydraulic cylinder (not shown). Accordingly, the second press bar 256 is raised and lowered by the second driver 260 and linearly moved by the first driver 264.

The inspection method of the liquid crystal display device according to the second embodiment of the present invention using the inspection device of the liquid crystal display device according to the second embodiment of the present invention, first, the TCP (212) attached to the liquid crystal panel 211 Each of the first and second press bars 278 and 256 is located at the edge of the panel jig 220 in a waiting time for inspecting a poor attachment of the panel. That is, the first press bar 278 is positioned at the left edge of the panel jig 220, and the second press bar 256 is positioned at the upper edge of the panel jig 220.

As such, while the first and second press bars 278 and 256 are positioned at the edges of the panel jig 220 and stand by, the loading device of the liquid crystal panel 211 is provided on the stepped surface of the window formed on the panel jig 220. By the liquid crystal panel 211 is loaded and seated. As the liquid crystal panel 211 is seated on the step surface of the window formed on the panel jig 220, each of the plurality of TCPs 212 attached to the liquid crystal panel 211 is formed on the first and second PCBs 238 and 236. Will be put on.

When the liquid crystal panel 211 is loaded and seated on a window formed on the panel jig 220, the first press bar 278 is positioned on the panel jig 220 by the first driver 274 of the X-axis driver 280. After the linear movement toward the first PCB 238 installed in the, it is lowered on the first PCB 238 by the second drive unit 270. At the same time, the second press bar 256 linearly moves toward the second PCB 236 installed on the panel jig 220 by the first driver 264 of the Y-axis driver 250, and then the second driver 260. ) Onto the second PCB 236. At this time, the movement distance of each of the first and second press bars 278 and 256 is about 50 mm or less, which is very small compared to about 300 mm or more, which is the movement distance of the conventional upper jig. Accordingly, each of the first and second press bars 278, 256 presses each of the plurality of TCP 212 to connect to each of the first and second PCBs 238, 236.

When each of the plurality of TCP 212 is connected to each of the first and second PCBs 238, 236 by the first and second press bars 278, 256, not shown, installed on the back of the panel jig 220 The light from the backlight unit is irradiated to the liquid crystal panel 211 and simultaneously supplies a test pattern signal to each of the plurality of TCPs 212 from each of the first and second PCBs 238 and 236. Accordingly, each of the plurality of integrated circuits mounted on each of the plurality of TCPs 212 is connected to the liquid crystal panel through the plurality of TCPs 212 in response to test pattern signals from each of the first and second PCBs 238 and 236. The test pattern signal is supplied to 211.

Then, the system engineer determines the adhesion failure of the TCP 212 according to the test pattern signal displayed on the liquid crystal panel 211 through the window of the panel jig 220.

As such, the inspection apparatus of the liquid crystal display according to the second exemplary embodiment of the present invention simultaneously moves the first and second press bars 278 and 256 installed in the panel jig 220 up and down and linearly moves the same. By pressing the TCP 212 placed on the first and second PCBs 238 and 236 installed on the panel jig 220, the transfer distance can be shorter than before, and the conventional upper jig is not necessary. Therefore, the inspection apparatus of the liquid crystal display device according to the second embodiment of the present invention can improve the productivity by reducing the inspection time, and can simplify the structure of the inspection apparatus.

As described above, the inspection apparatus of the liquid crystal display according to the embodiment of the present invention includes first and second driving bars that linearly move in the Y-axis direction and the X-axis direction on the upper jig. Accordingly, the present invention can make the transfer distance of the first and second drive bars shorter than before, and it is not necessary to replace the upper jig according to the model of the liquid crystal panel. In addition, since the present invention does not require replacement time of the upper jig, it is possible to shorten the inspection time and improve productivity.

On the other hand, the inspection device of the liquid crystal display device according to an embodiment of the present invention is the X-axis drive unit for moving up and down each of the first and second press bars installed on the panel jig on which the liquid crystal panel is seated and linear movement; Y-axis drive unit is provided. Accordingly, the present invention drives each of the X-axis drive unit and the Y-axis drive unit to simultaneously move up and down the first and second press bars, as well as to linearly move, so as to be placed on the first and second PCBs mounted on the panel jig. It will press TCP. For this reason, the present invention can shorten the transfer distance of each of the first and second press bars than before, and the conventional upper jig is unnecessary. Therefore, the present invention can shorten the inspection time, improve productivity, and simplify the structure of the inspection apparatus.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (17)

LCD panel, A fixed jig supporting the liquid crystal panel; A tape carrier package attached to the liquid crystal panel; And a movable jig for transferring the tape carrier package toward the fixing jig by transferring in two axial directions perpendicular to each other. The method of claim 1, A support plate for supporting the fixing jig; And a driving shaft provided between the support plate and the movable jig to up / down the movable jig. The method of claim 1, The movable jig, An X-axis driving unit installed at one side of the movable jig and linearly moving in the X-axis direction; And a Y axis driver installed at one side of the movable jig so as to be orthogonal to the X axis driver to linearly move in the Y axis direction. The method of claim 1, The X-axis drive unit, A first ball screw installed on the movable jig, A first servo motor for rotating the first ball screw, And a first driving bar connected to the first ball screw and linearly moving in the X-axis direction on the fixing jig by the rotation of the first ball screw. The method of claim 4, wherein And the X-axis driving unit is provided on the first driving bar, and further comprises a first press bar for pressing the tape carrier package by the lowering of the movable jig. The method of claim 4, wherein The X-axis drive unit is installed on the movable jig, and is provided on the first drive bar, and further comprises an LM guider for guiding the linear movement of the first drive bar by the rotation of the first ball screw. Inspection device of the liquid crystal display device. The method of claim 1, The Y-axis drive unit, A second ball screw installed on the movable jig, A second servo motor for rotating the second ball screw; And a second drive bar connected to the second ball screw and linearly moving in the Y-axis direction on the fixing jig by the rotation of the second ball screw. The method of claim 7, wherein And the Y-axis driving unit is provided on the second driving bar, and further includes a second press bar for pressing the tape carrier package by the lowering of the movable jig. The method of claim 7, wherein The Y-axis drive unit is installed on the movable jig, and is provided on the second drive bar, and further comprises an LM guider for guiding the linear movement of the second drive bar by the rotation of the second ball screw. Inspection device of the liquid crystal display device. The method of claim 1, The movable jig, An X-axis driving unit installed at one side of the fixing jig and linearly moving in the X-axis direction; And a Y axis driver installed at one side of the fixing jig so as to be orthogonal to the X axis driver to linearly move in the Y axis direction. The method of claim 10, The X-axis drive unit, A first driving bar linearly moving in the X-axis direction on the fixing jig; A first drive unit for linearly moving the first drive bar; And a second driving unit for raising and lowering the first driving unit. The method of claim 11, And the X-axis driving unit is provided on the first driving bar, and further comprises a first press bar for pressing the tape carrier package by the lowering of the first driving bar. The method of claim 10, The Y-axis drive unit, A second drive bar linearly moving in the X-axis direction on the fixing jig; A third driving unit for linearly moving the second driving bar; And a fourth driving unit for raising and lowering the third driving unit. The method of claim 13, And the Y-axis driving unit is provided on the second driving bar, and further includes a second press bar for pressing the tape carrier package by the lowering of the second driving bar. The method of claim 1, And a printed circuit board connected to the tape carrier package pressurized by the movable jig is installed in the fixed jig. Fixing the liquid crystal panel to the fixing jig; And transferring the tape carrier package attached to the liquid crystal panel toward the fixing jig by using the movable jig to move in a direction orthogonal to each other. The method of claim 16, And up / down the movable jig.