JPH1031225A - LCD panel lighting inspection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to repair a defective part while using an existing simple repair device by constituting a lighting inspection device so as to attach/ detach a probe to/from a liquid crystal panel in contact with each other. SOLUTION: A fixing support 14a arranged on a lower jig 14A constituting a lower plate 14 is passed through a through hole 16a formed on an upper plate 16 side by lowering an upper/lower head unit 15. A small-sized air cylinder unit 15a is operated in this state, and a fixed chuck 16b is connected with the fixing support 14a passed through the through hole 16a, and the upper plate 16 is connected with the lower plate 14. In this connection process, a contact state between the electrode terminal of the liquid crystal panel and the probe is kept, and the upper/lower plates 16, 14 are energized by elastic force of a probe block 16A to be connected stably. The liquid crystal panel is loaded between the upper/lower plates 16, 14 in the state that the probe of the device side is in contact with the electrode terminal. The liquid crystal panel loaded in such a manner is lighting inspected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting inspection apparatus for a liquid crystal panel for lighting inspection of a liquid crystal panel before a driving circuit is mounted.

[0002]

2. Description of the Related Art Conventionally, prior to mounting a driving circuit on a liquid crystal panel, a defect such as a defective pixel, disconnection of a signal line or a scanning line or a short circuit is checked. There is a lighting inspection step of repairing the defective portion by using a repairing device using the method described above, and only those which pass this inspection are put into a step of mounting a drive circuit. In this inspection, a liquid crystal panel is mounted on a lighting inspection device, a lighting signal is supplied to signal lines and scanning lines, and an inspector visually inspects a lighting state of the liquid crystal panel.

Here, conventionally, as a lighting display device for supplying a lighting signal to a signal line and a scanning line of a liquid crystal panel and performing an inspection, first, a terminal for supplying a lighting signal to the signal line and the scanning line ( A short ring that short-circuits all of the "electrode terminals" is attached to the liquid crystal panel, and a metal electrode, conductive rubber electrode, or contact probe on the device side is connected to this short ring, and signal lines and scanning are performed. Secondly, a device for supplying lighting signals to the lines collectively (first conventional device), and secondly, removing a short ring from the liquid crystal panel, and using a contact probe for each signal line terminal and scanning line terminal of the liquid crystal panel. (A second conventional device).

Hereinafter, first and second conventional devices will be described with reference to FIGS. Here, FIG.
FIG. 5A is a diagram illustrating a first conventional device before mounting the liquid crystal panel 1 of the inspection object, and FIG. 5B is a diagram illustrating a first conventional device mounting the liquid crystal panel 1 of the inspection object. FIG. FIG. 6A shows a liquid crystal panel 1 of an object to be inspected.
FIG. 6 is a diagram showing a second conventional device before the device is mounted.
FIG. 2B is a diagram illustrating a second conventional apparatus in which a liquid crystal panel 1 to be inspected is mounted. Further, FIG. 7 is an explanatory view for explaining a movable range of the liquid crystal panel 1 mounted on the second conventional device, and FIG. 8 is a diagram showing a combined use of the first and second conventional devices. FIG.

As shown in FIG. 5, a first conventional apparatus mounts a liquid crystal panel 1 to be inspected to which a short ring (not shown) is mounted, between a lower plate 100 and an upper plate 101. On the liquid crystal plate mounting surface side of the lower plate 100, positioning pins 100A for determining the position of the liquid crystal panel 1 to be mounted are arranged according to the outer shape of the liquid crystal panel 1. A signal line side electrode block 101A and a scanning line side electrode block 101B are provided on the liquid crystal panel mounting surface side of the upper plate 101, and these blocks 101A and 101B have electrode terminals of signal lines of the liquid crystal panel 1, respectively. The signal line electrode 101a and the scanning line electrode 101b are disposed so as to face the scanning line electrode terminals.

When the liquid crystal panel 1 is mounted on the first conventional apparatus shown in FIG. 5A, first, the liquid crystal panel 1 is mounted on the lower plate 100 with the outer end surface of the liquid crystal panel 1 aligned with the positioning pins 100A. Next, as shown in FIG. 2B, each of the electrodes 101a and 101b on the upper plate 101 side.
Is pressed against the electrode terminals of the liquid crystal panel 1 placed on the lower plate 100 so that the liquid crystal panel 1 is
And the upper plate 101.

A lighting signal is input to the thus mounted liquid crystal panel 1 via the signal line electrode 101a and the scanning line electrode 101b on the upper plate 101 side, and the liquid crystal panel 1 is turned on and displayed. Check the lighting. If a defect is found in this inspection, the liquid crystal panel 1 is mounted and turned upside down, and the glass substrate on the wiring pattern side of the liquid crystal panel 1 is directed upward and under the laser irradiation port of the repair device (not shown). Transport to Then, the defective portion is irradiated with a laser beam to repair a defect such as a defective pixel, a disconnection of a signal line or a scanning line, or a short circuit.

According to the above-mentioned first conventional apparatus, since a mechanism for supplying a lighting signal is simple, a lighting signal for lighting the liquid crystal panel 1 can be generated by a simple apparatus, and a defective portion is repaired. The work can be performed with a simple tabletop laser irradiation device. However, in the first conventional device, the signal lines and the scanning lines of the liquid crystal panel are short-circuited by a short ring, so that, for example, a liquid crystal panel that needs to supply lighting signals with different timings to adjacent even and odd electrode terminals or , Chip on glass (COG)
A liquid crystal panel, such as a liquid crystal panel, in which it is difficult to short-circuit electrode terminals with a short ring due to its structure, cannot be turned on.

In the first conventional apparatus, when a signal line and a scanning line are short-circuited by a short ring, a short circuit between adjacent signal lines or between scanning lines cannot be detected. Therefore, in order to detect such a defect, it is necessary to remove the short ring to make the electrode terminals of each signal line and the scanning line independent, and to connect the electrode on the device side to each of the electrode terminals independently. Furthermore, when any defect is detected and the defect is repaired, the liquid crystal panel is temporarily turned off and the repair work is performed first, and then the light is turned on again to perform the lighting inspection. As described above, according to the first conventional apparatus, it is necessary to separate the lighting inspection and the repair work from each other, which results in a production system with extremely low efficiency.

[0010] In contrast to the above-mentioned first conventional apparatus, a second conventional apparatus which will be described below provides a lighting signal by giving an independent lighting signal to a signal line and a scanning line to perform lighting inspection and repair. This enables work to be processed in cooperation. According to the second conventional device, since a lighting signal can be applied independently to each electrode terminal of the liquid crystal panel, a variety of lighting tests can be performed by displaying a plurality of display patterns on the liquid crystal panel. At the same time, a short mode failure between the electrode terminals can be simultaneously detected.

Hereinafter, referring to FIG. 6 and FIG.
The conventional device will be described. The second conventional apparatus shown in FIG. 6 is such that each probe of the contact probe 201 is brought into contact with an electrode terminal of the liquid crystal panel 1 of an object to be inspected, which is sucked and fixed on the lower surface side of the suction table 200, and It is mounted between the contact probe 201. That is, in FIG. 6A, the contact probe 201 is disposed on the XYθ fine movement stage 202, and the contact probe 201 and the XYθ
03 moves up and down.

An alignment camera 2 for detecting the position of the liquid crystal panel 1 is provided above the suction table 200.
04A and an alignment camera controller 204B are provided. Further, the entire apparatus is controlled by an X-axis linear guide 205A and a Y-axis linear guide 205B.
As shown in FIG. 7, the laser beam output from the laser irradiation unit 206 of the repair device is transferred to a repair device (not shown) and controlled by the alignment camera controller 204B. The repair work is performed by determining the position of the liquid crystal panel 1 within the range of the movable ranges X and Y so as to irradiate the liquid crystal panel.

When the liquid crystal panel 1 is mounted on the second conventional apparatus configured as described above, first, the glass substrate on the wiring pattern side of the liquid crystal panel 1 is turned upward (electrode terminals are directed downward), and the lower side of the suction table 200 is set. Adsorb to and fix. In addition,
The suction table 200 is provided with a window (not shown), and repairs a defective portion of the liquid crystal panel 1 by irradiating a laser beam through the window as described later.

Next, the alignment camera controller 2
04B performs alignment so that the probe of the contact probe 201 is located at the electrode terminal of the liquid crystal panel 1. That is, the alignment camera controller 204B
The liquid crystal panel 1 for recognizing a reference portion of the liquid crystal panel 1 fixed to the suction table 200 from the image pattern by the alignment camera 205A and positioning the probes arranged on the contact probes 201 on the electrode terminals of the liquid crystal panel 1 XY coordinate and rotation angle are calculated, and the XYθ-axis fine movement stage 20 is
2 to control the alignment of the liquid crystal panel 1.

Next, when the alignment is completed, FIG.
As shown in (b), the contact probe 20 is connected to the electrode terminal of the liquid crystal panel 1 by the Z-axis air cylinder 203.
Until one probe comes in contact, contact probe 20
1 and the XYθ-axis fine movement stage 202 are pushed up. When a lighting signal is supplied to the contact probe 201 in this state, the liquid crystal panel 1 is turned on, and a lighting test can be performed.

As a result of the lighting inspection, if it becomes necessary to repair a defective portion, as shown in FIG.
The apparatus is conveyed to a position below the laser irradiation port of the laser irradiation unit 206 of the repair apparatus by the 05A and the Y-axis linear guide 205B. Then, a defective portion of the display screen area 207 of the liquid crystal panel 1 fixed to the suction table 200 is irradiated with laser light through a window of the suction table 200 to perform repair work.

FIG. 8 shows an example of a lighting inspection process in which the first and second conventional devices described above are used in combination to detect and repair a short-circuit failure between signal lines or between scanning lines. A brief description will be given along the process chart shown below. First, a lighting test is performed by the first conventional device with the short ring attached (step S01). Next, repair work is performed by a simple repair device (existing equipment) based on the result of the lighting inspection (step S02). Next, the short ring is removed, and a short-circuit failure between signal lines or between scanning lines is inspected using the second conventional apparatus (step S03). If a short circuit is detected as a result of this inspection, the second
The repair work is performed by a dedicated repair device cooperating with the conventional device (step S04). As described above, the liquid crystal panel after the lighting inspection step is put into the next step (drive circuit mounting step).

[0018]

According to the first conventional apparatus, as described above, the inspection is performed with the short ring attached to the liquid crystal panel. Therefore, the inspection is performed between the signal lines or the scanning lines of the liquid crystal panel. There is a problem that a short circuit failure cannot be detected, and a liquid crystal panel that requires signals with different timings for adjacent electrode terminals cannot be turned on.

On the other hand, according to the above-mentioned second conventional apparatus, once a liquid crystal panel to be inspected is mounted, a defective portion cannot be repaired without a repairing device associated therewith. However, there has been a problem that existing equipment such as a simple laser repair device which has been conventionally used cannot be effectively used.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a liquid crystal panel lighting inspection apparatus capable of performing repair work by effectively utilizing existing facilities such as a laser correction apparatus. The task is to provide.

[0021]

Means for Solving the Problems The present invention has the following arrangement to achieve the above object. That is, claim 1
A lighting inspection apparatus for a liquid crystal panel according to the invention described above is a lighting inspection apparatus for a liquid crystal panel, which is mounted by bringing a probe into contact with an electrode terminal of a liquid crystal panel and lighting and inspecting the liquid crystal panel. A first plate for holding the liquid crystal panel from one side, a second plate for holding the liquid crystal panel from the other side, and a connecting mechanism for connecting the first plate and the second plate; And a detachment mechanism for attaching and detaching the first and second plates connected by the connection mechanism, wherein the first plate is connected to a first sub-plate connected to the second plate by the connection mechanism. A first sub-plate coupled to the first sub-plate such that the second sub-plate is movable in a two-dimensional plane of the first plate.

A lighting inspection apparatus for a liquid crystal panel according to the invention according to claim 2 is such that the lighting inspection apparatus for a liquid crystal panel according to claim 1 is capable of moving and rotating within a two-dimensional plane. A stage movable in a direction perpendicular to the two-dimensional plane, an adjustment mechanism for adjusting the amount of movement and rotation of the stage, and a coupling mechanism for temporarily coupling the stage and a second sub-plate; When the probe is brought into contact with the electrode terminal of the liquid crystal panel and attached, the second sub-plate and the stage are temporarily coupled by the coupling mechanism, and the adjusting mechanism is used to temporarily connect the second sub-plate and the stage in the two-dimensional plane. It is configured to adjust the movement and rotation of the stage so as to align the electrode terminal with the probe.

Further, a lighting inspection apparatus for a liquid crystal panel according to a third aspect of the present invention is a repairing apparatus for repairing a defective portion of the liquid crystal panel by the lighting inspection apparatus for a liquid crystal panel according to the second aspect of the invention. Are combined and provided.

The lighting inspection apparatus for a liquid crystal panel according to the present invention constructed as described above operates as follows. That is, according to the lighting inspection apparatus for a liquid crystal panel according to the first aspect of the invention, when the probe is brought into contact with the electrode terminal of the liquid crystal panel and mounted, first, the second sub-terminal is connected to the electrode terminal of the liquid crystal panel. The position of the probe arranged on the plate is adjusted, and the electrode terminal and the probe are brought into contact. Next, the first sub-plate and the second plate constituting the first plate are connected by the connecting mechanism. At this time, since the second sub-plate is coupled to the first sub-plate so as to be movable in a two-dimensional plane of the first plate, the first sub-plate is connected to the first sub-plate. At this time, the positional relationship between the electrode terminal and the probe that have already been aligned is maintained. Therefore, as a result of maintaining the positional relationship, the liquid crystal panel is mounted between the connected first plate and second plate while the probe is in contact with the electrode terminal. Also,
The first and second plates to which the liquid crystal panel is attached and connected in this manner can be detached from the lighting inspection device by an attachment / detachment mechanism.

Further, according to the lighting inspection apparatus for a liquid crystal panel according to the second aspect of the present invention, in the lighting inspection apparatus for a liquid crystal panel according to the first aspect, the probe is brought into contact with the electrode terminal of the liquid crystal panel. At the time of mounting, the second sub-plate and the stage are connected by a connecting mechanism. Then, the movement and rotation of the stage in the two-dimensional plane are adjusted by the adjustment mechanism, and the second stage coupled to the stage is adjusted.
Of the sub-plate and the electrode terminals of the liquid crystal panel temporarily fixed to the second plate.

Further, according to the lighting inspection apparatus for a liquid crystal panel according to the third aspect of the present invention, in the lighting inspection apparatus for a liquid crystal panel according to the second aspect, the inspection can be performed without removing the liquid crystal panel. The specified defective part is repaired by the repair device.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a lighting device for a liquid crystal panel according to an embodiment of the present invention will be described with reference to FIGS. Here, FIGS. 1A and 1B are a front view and a side view, respectively, of the lighting inspection device of the present embodiment. FIG. 2 is a partially enlarged view of FIG. 1, and FIG.
FIG. 4 is a cross-sectional view for explaining the structure of a lower plate, which will be described later, constituting the device of the present embodiment. FIG. 4 is a lighting inspection process diagram using the device of the present embodiment.

As shown in FIG. 1, the lighting inspection apparatus for a liquid crystal panel according to the present embodiment comprises a table 10 and a support mechanism 11 which are located at the center of the apparatus and constitute a main frame.
The XYθ-axis fine movement stage unit 12 (stage) provided on the table 10, the electromagnetic magnet chuck unit 13 (coupling mechanism) provided on the XYθ-axis fine movement stage unit 12, and the liquid crystal panel 1 of the inspection object. Plate 14 (first plate) holding the lower surface side (one surface side) and fixed to the electromagnetic magnet chuck unit, and an upper and lower head unit 15 disposed to be vertically movable with respect to the lower plate 14. And an upper plate 16 (the second plate 16) which holds the liquid crystal panel 1 from the upper surface side (the other surface side) and is
Plate), a large air cylinder unit 17 for moving the vertical head unit 15 in the vertical direction, an alignment camera unit 18 (adjustment mechanism), and the XY
A backlight 19 is provided between the θ-axis fine movement stage unit 12 and the lower plate 14.

Here, as shown in an enlarged manner in FIG. 2, the upper and lower head units 15
It has a mechanism (removable mechanism) that slides from the near side to detachably mount the upper plate. Also, the upper plate 16
The lower plate 14 is provided with a through hole 16a and a fixing post 14a, respectively, and the lower plate 14 is provided with a fixing hole 14a of the lower plate.
a through the fixed chuck 16b disposed on the upper plate 16 side,
And the lower plate 14 (connection mechanism). here,
The sliding of the fixed chuck 16b is performed by the small air cylinder unit 15 disposed on the upper and lower head unit 15 side.
a. A probe block 16A in which a plurality of probes are arranged corresponding to the electrode terminals of the liquid crystal panel 1 is provided on the upper plate 16 on the mounting surface side of the liquid crystal panel 1.

Further, as shown in FIG.
Is constituted by a lower jig 14A (first sub-plate) and a fine movement table 14B (second sub-plate). The lower jig 14A supports the outer peripheral portion of the fine movement table 14B from below, and the fine movement table 14B Are configured to be finely movable in a horizontal direction (within a two-dimensional plane of the lower plate 14) with respect to the lower jig 14A.

That is, the fine movement table 14B for supporting the liquid crystal panel 1 from below is connected to the lower jig 14A so as to be finely movable by the fixing bolt 14C. Here, fixing bolts 14C includes a cylindrical portion 14C ₁ of smaller diameter r than the diameter R of the hole H formed in the fine-adjustment table 14B, made from the head 14C ₂ Metropolitan of larger diameter than the diameter R of the hole, the cylindrical portion a gap is provided between the 14C ₁ and the inner circumferential surface of the hole H, the tip end of the fixing bolt 14C is fixed to the lower jig. In addition, the head 14C ₁ of the fixing bolts 14C and fine movement table 1
Between 4B, it is provided washer 14C ₃ for this fixing bolt 14C and the fine-adjustment table 14B is smoothly slide.

As described above, the cylindrical portion 14C ₁ of the fixing bolt is provided.
By providing a gap between the fine jig table 14B and the fine movement table 14B, the fine movement table 14B can be finely moved in the horizontal direction (within a two-dimensional plane) by the gap with respect to the lower jig 14A. A spring 14D is provided between the fine movement table 14B and the lower jig 14A.
D urges fine movement table 14B, thereby suppressing rattling between fine movement table 14B and lower jig 14A.

The fine movement table 14 B is fixed to the XYθ-axis fine movement stage unit 12 by the electromagnetic force of the electromagnetic magnet chuck 13. The electromagnetic magnet chuck unit 13 is provided on an XYθ-axis fine movement stage unit 12 having a micrometer, and the operation of this stage unit 12 is transmitted to the fine movement table 14B via the electromagnetic magnet chuck unit 13.

Hereinafter, the operation of the thus configured apparatus of the present embodiment will be described with reference to FIGS. 1 to 3 and along the process chart shown in FIG. The details of the configuration of each unit described above will be described as appropriate in the following description of the operation. First, when the liquid crystal panel 1 that has completed the previous process is received, the short ring is removed from the liquid crystal panel 1, the liquid crystal panel is mounted on the device according to the procedure described below, and a lighting test is performed (step S01).
A).

First, when the liquid crystal panel 1 to be inspected is mounted on the apparatus of the present embodiment, the surface on which the electrode terminals are formed faces upward, and the liquid crystal panel 1 is mounted on the fine movement table 14B constituting the lower plate 14. Put on top. As will be described later, the fine movement table 14B is turned on by the electromagnetic magnet chuck unit 13 so that the θ-axis stage 12a and the Y-axis
It is fixed to the XYθ-axis fine movement stage unit 12 composed of the b and X-axis stages 12c.

Next, the upper jig 16 is moved toward the coupling mechanism of the upper and lower head unit 15 so that the probe block 16A on which the probes are arranged faces the electrode terminals of the liquid crystal panel 1 placed on the fine movement table 14B. Slide from and attach. Next, as shown by a dotted line in FIG.
By operating the large air cylinder 17, the upper plate 16 mounted on the upper and lower head unit 15 is lowered, and stopped just before the tip of the probe of the probe block 16A contacts the electrode terminal of the liquid crystal panel 1.

Next, the electromagnetic magnet chuck unit 1
3 to turn on the fine movement table 14B of the lower plate 14 and the XYθ-axis fine movement stage unit 12. Then, the alignment of the probe of the probe block 16A with the electrode terminals of the liquid crystal panel 1 is performed using the alignment camera unit 18. The alignment camera unit 18 includes an epi-illumination light source 18a, a prism 18b,
D camera 18c, and irradiates an epi-illumination light source 18a on the back surface of the liquid crystal panel 1, and outputs a CC through a prism 18b.
An image is taken by the D camera 18c. The image pattern captured by the CCD camera 18c is displayed on a monitor (not shown), and the inspector checks the X-axis, Y-axis, θ
By manually operating a micrometer for adjusting the position of each of the axes stages 12a, 12b, 12c, the probe block 1
The position of the 6A probe and the electrode terminal of the liquid crystal panel 1 are aligned.

Next, when the alignment between the probe and the electrode terminals is completed, the large air cylinder unit 17
Is operated to lower the upper plate 16 to bring the tip of the probe into contact with the electrode terminal of the liquid crystal panel 1.

Next, the lower plate 14 and the upper plate 16 are connected. That is, as shown in FIG. 2, when the upper and lower head units 15 are lowered, the fixing posts 14 a provided on the lower jig 14 A constituting the lower plate 14 are inserted into the through holes 16 a formed on the upper plate 16 side. Passed. In this state, the small air cylinder unit 15a is operated to couple the fixing chuck 16b and the fixing column 14a passed through the through hole 16a, and the upper plate 16 and the lower plate 14
And concatenate.

In the process of connecting the upper plate 16 and the lower plate 14, the contact state between the electrode terminals of the liquid crystal panel 1 and the probe is maintained, and the probe block 16A
The upper and lower plates are urged by the elastic force of, and are stably connected. As described above, the liquid crystal panel 1 is mounted between the upper plate 16 and the lower plate 14 in a state where the probe on the device side is in contact with the electrode terminals. A lighting signal is supplied to the liquid crystal panel 1 thus mounted, and a lighting inspection of the liquid crystal panel 1 is performed (step S01A).

If a defect is detected as a result of the lighting inspection, the liquid crystal panel 1 is detached from the device with the liquid crystal panel 1 mounted on the upper plate 16 and the lower plate 14 and repaired by a repair device according to a procedure described below ( Step S02A). First, the electromagnetic magnet chuck 13 is turned off to release the connection, and the large air cylinder unit 17 is operated.
The upper and lower head units 15 are raised. At this time, the lower jig plate 14 rises while being connected to the upper plate 16 with the liquid crystal panel 1 interposed therebetween. When you're done climbing,
The upper and lower plates 14 and 16 on which the liquid crystal panel 1 is mounted are slid to the front and removed from the upper and lower head unit 15, and the defective portion is repaired using a repair device for existing equipment (step S02A). In this repair work, if a lighting signal is input to the probe block 16A, the repair work can be performed smoothly with the liquid crystal panel 1 turned on.

Next, when the repair work is completed, the liquid crystal panel 1 is removed from the upper plate 16 and the lower plate 14 according to the following procedure. That is, first, the upper and lower plates 14 and 16 on which the liquid crystal panel 1 is mounted are mounted again on the upper and lower head units 15, and the fine movement table 14 B constituting the lower plate 14 is lowered to a position where it comes into contact with the electromagnetic magnet chuck 13.

Subsequently, the lower plate 14 is fixed by turning on the electromagnetic magnet chuck 13 and the small air cylinder 15a provided on the upper and lower head unit 15 is operated to slide the fixed chuck 16b, thereby causing the upper plate 16 to slide.
And the lower plate 14 is disconnected. Then, only the upper plate 16 is raised, the liquid crystal panel 1 on which the repair work has been performed is removed, and the next liquid crystal panel is mounted in the same manner to perform a lighting test.

[0044]

As is clear from the above description, according to the present invention, the following effects can be obtained. That is,
Since the probe is configured to be attached and detached while keeping the probe in contact with the liquid crystal panel, it is possible to repair defective parts using existing simple repair equipment, and for example, it is possible to repair adjacent even and odd terminals. Even for a liquid crystal panel that cannot be turned on unless a signal at a different timing is supplied, or a liquid crystal panel that cannot use a short ring due to its structure, such as a chip-on-glass (COG) liquid crystal panel, it is easy to perform lighting inspection and the like. Repair work can be performed.

Also, without using a short ring,
Since the probe is mounted in contact with the electrode terminal of the liquid crystal panel, it is possible to effectively detect a defect that cannot be detected with the short ring attached, such as a short circuit between signal lines or between scanning lines. . Therefore, according to the present invention, it is possible to obtain a lighting inspection apparatus for a liquid crystal panel that can improve productivity and effectively use existing facilities.

[Brief description of the drawings]

FIG. 1A is a front view of a lighting inspection device according to an embodiment of the present invention. (B) is a side view of the lighting inspection device of the embodiment of the present invention.

FIG. 2 is a partially enlarged view of the lighting inspection device according to the embodiment of the present invention.

FIG. 3 is a sectional view of a lower plate constituting the device according to the embodiment of the present invention.

FIG. 4 is a process diagram of a lighting inspection using the apparatus according to the embodiment of the present invention.

FIG. 5A is an explanatory diagram for explaining a first conventional apparatus before a liquid crystal panel to be inspected is mounted.
(B) is an explanatory view for explaining a first conventional device equipped with a liquid crystal panel of an object to be inspected.

FIG. 6A is an explanatory diagram for explaining a second conventional device before a liquid crystal panel to be inspected is mounted.
(B) is an explanatory view for explaining a second conventional device equipped with a liquid crystal panel of an object to be inspected.

FIG. 7 is an explanatory diagram for explaining a movable range of a liquid crystal panel in a repair operation.

FIG. 8 is a process diagram of a lighting inspection using a conventional apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal panel 10 Table 11 Support mechanism 12 XY (theta) axis fine movement stage unit 13 Electromagnetic magnet chuck unit 14 Lower plate 14A Lower jig 14B Fine movement table 14C Fixing bolt 14D Spring 15 Upper and lower head unit 15a Small air cylinder unit 16 Upper plate 16A Probe block 16a Through hole 16b Fixed chuck 17 Large air cylinder unit 18 Alignment camera unit 19 Backlight

Claims (3)

[Claims] 1. A lighting inspection apparatus for a liquid crystal panel, wherein a probe is brought into contact with an electrode terminal of a liquid crystal panel to be mounted thereon, and the liquid crystal panel is lit and inspected. A first plate that holds the liquid crystal panel from the other side, a second plate that holds the liquid crystal panel from the other side, a connection mechanism that connects the first plate and the second plate, and a connection mechanism that is connected by the connection mechanism. An attachment / detachment mechanism for attaching / detaching the first and second plates, wherein the first plate is connected to the second plate by the connection mechanism, and the first plate is attached to the first plate. The first so as to be movable in a two-dimensional plane of
A lighting inspection device for a liquid crystal panel, comprising: a second sub-plate coupled to the first sub-plate. 2. A stage that can move and rotate in a two-dimensional plane and that can move in a direction perpendicular to the two-dimensional plane, an adjustment mechanism that adjusts the amount of movement and rotation of the stage, And a coupling mechanism for temporarily coupling the stage and the second sub-plate. When the probe is brought into contact with the electrode terminal of the liquid crystal panel and mounted, the coupling mechanism couples the second sub-plate and the stage. 2. The liquid crystal according to claim 1, wherein the liquid crystal is temporarily coupled, and the movement and rotation of the stage are adjusted in the two-dimensional plane by the adjustment mechanism, so that the electrode terminal and the probe are aligned. 3. Panel lighting inspection device. 3. The lighting inspection apparatus for a liquid crystal panel according to claim 2, further comprising a repairing device for repairing a defective portion of the liquid crystal panel.