KR100602424B1 - Glass inspection equipment for flat panel display and glass lifter therefor - Google Patents

Abstract

The macro inspection apparatus which can turn in a predetermined direction within a short time according to the operator's operation while the glass substrate is loaded in the holder and improves workability, and is used to turn the glass substrate in the lower part of the holder Disclosed is a lifter mounted so as to be possible. Macro inspection apparatus of the glass substrate for a flat panel display of the present invention, the backlight is configured on one side to perform the back lighting of the glass substrate; A light facing the front surface of the glass substrate and provided above the glass substrate to provide irradiation light for macro inspection of the glass substrate; A holder holding the glass substrate loaded at a predetermined position; A supporter mounted on the holder to support a lifting state of the glass substrate mounted on the holder; And a lower portion of the holder, driven in an inclined state in a standby state and vertically driven in a use state, in which the end portion forming the first coupling portion is raised to engage with the surfer, and provides rotational force in the engaged state. Thereby providing a lifter for turning the glass substrate held in the holder to a desired position.

Description

Macro inspection apparatus for glass substrates for flat panel displays and glass substrate lifters mounted thereon {GLASS INSPECTION EQUIPMENT FOR FLAT PANEL DISPLAY AND GLASS LIFTER THEREFOR}

1 is a view for explaining a macro inspection apparatus of a conventional glass substrate for a flat panel display.

2 is a view showing a driving state for the macro inspection as a preferred embodiment of the macro inspection apparatus of the glass substrate for a flat panel display according to the present invention.

FIG. 3 shows the holder and lifter of the embodiment of FIG. 2 driven in a state for turning on the glass substrate. FIG.

4 is a view for explaining a state in which the lifter configured in the embodiment is driven.

FIG. 5 is a perspective view illustrating an example of a surfer for supporting a glass substrate that is coupled to an end of a lifter configured as an embodiment and placed in a holder. FIG.

6 is a view for explaining an embodiment of a turn state of a glass substrate.
<Description of the symbols for the main parts of the drawings>
100: loading / unloading robot 200: inspection device
202: backlight 204: light
210: support pattern 212: holder
220: glass substrate 230: lifter
232: screw rod 234: motor
236: seam 238: linker
240: vertical rod 246: motor
248: screw rod 250: guide assembly
254: motor 258: coupling part
270: supporter 272: coupling portion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a macro inspection apparatus for a glass substrate for a flat panel display, and more particularly, it is possible to turn in a predetermined direction within a short time according to the operator's operation in a state where the glass substrate is loaded in a holder. It relates to a macro inspection apparatus and improved lifter which is configured under the holder and can be used to turn the glass substrate.

With the recent development of display technology, various flat panel displays (hereinafter referred to as "FPD") employing liquid crystal display (LCD), plasma display panel (PDP) or organic light emitting diode (organic EL) as basic display elements. The device is being developed and marketed as a product.

Glass substrates for panel production are used in these FPD devices, and glass substrates are installed in the FPD devices after undergoing various inspections such as macro inspection (visual inspection) and micro inspection (micro device inspection).

Among these, macro inspection is a process of inspecting the state of stains or foreign substances attached to the entire glass substrate with the naked eye of the operator. In addition, the micro-inspection is a process of magnifying and inspecting spots or foreign substances on the local area found in the macro-inspection by more than a few times using micro devices such as microscopes, cameras, and image analysis devices.

Among these, macro inspection is performed by irradiating light onto glass substrates at various angles and directions. An example of a glass substrate support device for this purpose has been disclosed as a "glass support device for a display device" in Korean Patent Application No. 2003-13094.

The conventional macro inspection apparatus is constructed as shown in FIG.

Referring to FIG. 1, a conventional macro inspection apparatus includes a loading / unloading robot 10 and an inspection apparatus 20.

The loading / unloading robot 10 has an arm 14 having articulations at the top and bottom of the body 12, respectively, and the arm 14 is driven to fold or unfold in the horizontal direction. A fork 16 is mounted on the end of these arms 14 to move the glass substrate thereon. The upper arm 14 is for loading into the turntable 22 of the inspection apparatus 20 to rotate the glass substrate in the holder 26 of the inspection apparatus 20, and the lower arm 14 is the inspection apparatus. It is for loading / unloading a glass substrate into the holder 26 of 20.

And the inspection apparatus 20 is equipped with the turntable 22 in the upper part, and the test | inspection equipment which includes the holder 26 in the lower part is comprised. The holder 26 may drive the glass substrate inclined like “26a” so that an operator may inspect the surface of the glass substrate. Then, the turntable 22 is used to rotate the glass substrate arranged in a certain direction to inspect in another direction. In addition, one side of the inspection device 20 is configured with a backlight 24 for providing illuminance for inspection on the glass substrate.

The conventional macro inspection apparatus configured as described above turns the glass substrate from the 0 ° position to the 90 ° position (or 0) as described above in the course of performing the macro inspection on the surface of the glass substrate used for the FPD. Macro inspection may be performed at 90 ° rotation).

In this case, when the glass substrate is turned by using the conventional macro inspection apparatus as shown in FIG. 1, the fork 16 of the arm 14 of the loading / unloading robot 10 moves to the holder 26. Driven to load the glass substrate, the fork 16 loaded with the glass substrate is transferred to the turntable 22, the glass substrate transferred by the fork 16 is placed on the turntable (22).

Thereafter, the glass substrate is turned in the desired direction with the rotation of a rotating table (not shown) constituted in the turntable 22, and the loading / unloading robot 10 moves the fork 16 of the arm 14 again. The glass substrate in the turned state is loaded by driving with the turntable 22, and the glass substrate is transferred to the holder 26 in a turned state to a changed position and inspected macro.

As described above, the conventional macro inspection apparatus has a separate component for turning the glass substrate in a space separate from the space for performing the macro inspection. Therefore, the conventional macro inspection apparatus takes a lot of driving time to transfer the glass substrate back and forth to another space, the work time is deteriorated due to the above-mentioned driving time and the multi-step glass substrate transfer, and separate components Due to the low efficiency of space use, parts for a separate component may act as a cause of increasing the manufacturing cost.

An object of the present invention for solving the above problems is to turn on the glass substrate for the macro inspection in the area where the holder is mounted to improve the macro inspection time and workability, and to suppress the manufacturing rise factor while having a space margin The present invention provides a macro inspection apparatus for a glass substrate, and a glass substrate lifter formed thereon.

Macro inspection apparatus for a flat panel display glass substrate according to the present invention for achieving the above object, the holder for holding a glass substrate loaded at a predetermined position and driven in a horizontal and inclined state for the macro inspection of the glass substrate; A supporter mounted on the holder to support a lifting state of the glass substrate mounted on the holder; Installed in the lower part of the holder, driven obliquely in the standby state and driven vertically in the use state, in which the end portion forming the first engagement portion is raised to engage with the surfer, providing rotational force in the engaged state A lifter for turning the glass substrate held in the holder to a desired position; A backlight installed at the back of the device to perform the back lighting of the glass substrate; And a light facing the front surface of the glass substrate and provided above the glass substrate to provide irradiation light for macro inspection of the glass substrate.
The surfer has a rectangular cross-sectional shape corresponding to the glass substrate and is configured to have a frame that crosses therein, and a second coupling part capable of engaging with the first coupling part of the lifter is configured at a lower portion of the center. .
The first coupling portion and the second coupling portion may have a configuration in which gears are geared or screwed.
Preferably, the lifter, a vertical rod hinged to the predetermined base; First driving means for driving the vertical rods to vertical and inclined positions; Second driving means mounted to an end of the vertical rod to raise and lower the first coupling part; And third driving means mounted on an upper portion of the second driving means to rotate the first coupling part, and interlocked with the rising and falling of the second driving means to raise and lower the surfer. The glass substrate is lifted and the glass substrate is turned by the rotation of the third driving means.
The first drive means, the first motor for providing a rotational force; And a joint means for converting the rotational force of the first motor into a driving force for straight and backward movements and transferring the rotational force to the vertical rods.
In addition, the second drive means, a second motor for providing a rotational force; And a guide assembly configured to convert the rotational force of the second motor into a driving force for raising and lowering to perform a guide for raising and lowering.
Preferably, the third drive means, a third motor for providing a rotational force; And a rotation shaft which receives the rotational force of the third motor and transmits it to the first coupling part.
According to another aspect of the present invention, a glass for flat panel display which holds a glass substrate for performing a macro inspection in a holder and performs a macro inspection on the glass substrate by using a light that provides a backlight on the side and an irradiation light on the upper side. A glass substrate lifter mounted on a macro inspection apparatus of a substrate; A vertical rod hinged to a predetermined base; First driving means for driving the vertical rods to vertical and inclined positions; Second driving means mounted to an end of the vertical rod to raise and lower a first coupling part; Third driving means mounted on an upper portion of the second driving means to rotate the first coupling part; And a surfer mounted on the holder to support the lifting state of the glass substrate seated on the upper portion and having a second coupling portion at a lower portion of the center, interlocked with the rising and falling of the second driving means. As the second coupling part is coupled, the surfer is raised and lowered to lift the upper glass substrate, and the glass substrate held in the holder is turned to a desired position by the rotation of the third driving means.
Preferably, the surfer has a rectangular cross-sectional shape corresponding to the glass substrate and is configured to have a frame that crosses therein, and a second coupling portion configured to be coupled to the first coupling portion of the lifter at a lower portion of the center portion. do.
It is preferable that the first coupling portion and the second coupling portion have a configuration that is geared or screwed.
In addition, the first drive means, a first motor for providing a rotational force; And a joint means for converting the rotational force of the first motor into a driving force for moving forward and backward and transmitting the driving force to the vertical rods.
The second drive means, a second motor for providing a rotational force; And a guide assembly configured to convert the rotational force of the second motor into a driving force for raising and lowering to perform a guide for raising and lowering.
The third drive means includes a third motor for providing a rotational force; It is preferable to include; a rotating shaft for receiving the rotational force of the third motor and transmitting it to the first coupling portion.

delete

delete

delete

delete

delete

delete

Hereinafter, a preferred embodiment of a macro inspection apparatus of a glass substrate for a flat panel display and a glass substrate lifter mounted thereto will be described in detail with reference to the accompanying drawings.

An embodiment of the macro inspection apparatus according to the present invention can be implemented as shown in Figures 2 and 3, Figure 2 is a state driven for the macro inspection, Figure 3 is a holder and lifter is loaded for the turn of the glass substrate It is a state.

The macro inspection apparatus according to the present invention includes a loading / unloading robot 100 and an inspection apparatus 200, and the loading / unloading robot 100 includes a glass substrate on the holder 212 of the inspection apparatus 200. It is preferably configured on one side that can be loaded / unloaded.

Here, the loading / unloading robot 100 is used to load the glass substrate into the inspection apparatus 200 or to unload the glass substrate after the macro inspection, and has a joint structure for loading / unloading the glass substrate. An arm 104 for contracting and stretching in the direction and a fork 106 configured at the end of the arm to support the glass substrate upward are configured. The position of the arm 104 and the fork 106 is preferably set so that the glass substrate can be loaded thereon when the holder 212 is driven horizontally, as shown in FIG. ) Is preferably set to load / unload the glass substrate on the holder 212 driven to the position of FIG.

In addition, the inspection apparatus 200 includes a backlight 202, and the backlight 202 is a macro on the opposite side where the inspector is positioned based on the holder 212 holding the glass substrate 220 of the inspection apparatus 200. It is configured to provide illuminance for inspection. In addition, a light 204 configured to provide inspection light is spaced a predetermined distance above the holder 212 on the side where the inspector is located.

In addition, the holder 212 is fixed to the support panel 210 in the inspection apparatus 200, and the support panel 210 is connected to the base 206 having a rod of a predetermined height and the connection member 208, and is supported. The panel 210 is configured to be held at a predetermined height by the connecting member 208. That is, the support panel 210 is operatively connected to the horizontal state and the inclined state by the driving of the connection member 208 at a predetermined position as described above.

As an example, the connection member 208 has a hinge coupling with the rod body of the support panel 210 and the base 206, and in an inclined state and a horizontal state by tension and contraction of a separate push rod (not shown). Driven, the push rod may be configured to receive power required for tensioning and contracting by a motor or hydraulic pressure. In the present invention, the connecting member has been briefly described as an example, but it is apparent that a known configuration capable of driving the support panel 210 in a horizontal state and an inclined state can be applied, which is understood by those skilled in the art. Since the level can be easily configured, detailed illustration and description thereof will be omitted. In addition, the support panel 210 may also be coupled to the holder 212 by a known coupling method such as screwing.

In addition, the base 206, the connection member 208, and the support panel 210 are configured by driving means for supporting and driving the holder 212 as described above, and the holder 212 is formed by their mutual mechanism. ) Is driven in an inclined state at which the light of the light 204 is reflected from the glass substrate 220 and directed toward the inspector, at an angle suitable for macro inspection, or horizontal for loading / unloading or turning the glass substrate 220. Can be driven in a state.

In addition, the holder 212 may include a plurality of pads for sucking air to hold the glass substrate 220 with suction force, or include a separate clamper to clamp the edge of the glass substrate 220. 220 is preferably configured to have a removable structure on top.

In addition, the plotter 214 may be provided in the holder 212, and the plotter 214 is used to check a defective portion visually determined by the inspector's operation.

Meanwhile, a lifter 230 is configured below the holder 212, that is, under the support panel 210, and the lifter 230 will be described in detail with reference to FIG. 4.

First, in order to apply the lifter 230, the holder 212 is mounted with the surfer 270 as shown in FIG. 5, and the supporter 270 is seated on the holder 212 and supports the upper glass substrate 220. And it is preferred to have a coupling portion 272 coupled to the end of the lower lifter 230.

The surfer 270 preferably has a frame configured such that the upper glass substrate 220 has a rectangular shape, and has an inner frame connected to each corner to ensure more robustness. desirable. The surfer 270 presented in the present invention is presented as an example, and it is obvious that the technical spirit of the present invention is not limited thereto and may be variously implemented according to the intention of the manufacturer.

Coupling portion 272 is formed at the center lower portion of the surfer 270, coupling portion 272 can be configured integrally or assembled with the frame constituting the surfer 270, the lower end is the end of the lifter 230 It is preferable to be configured to receive the lifting force by a method such as and gear coupling.

The lifter 230 is coupled to the bottom of the base 206 by a hinge 242 and rotates when the vertical rods 240 are used to turn the glass substrate. It is desirable to ensure that the use efficiency. In addition, the vertical rod 240 may be configured to receive a driving force by a linker 238 between the joint 236 receiving the rotational force by the motor 234 and a fixed position of the vertical rod 240. 234 is a linear motor that is driven so that the straight or backward of the joint 236 is determined according to the rotation direction, the rotational force of the motor 234 is transmitted to the screw rod 232 to go straight and backward in the joint 236 It can be configured to convert to exercise power.

That is, when the joint 236 moves forward, the vertical rod 240 is vertically driven, and when the joint 236 moves backward, the vertical rod 240 is inclined.

In addition, a motor 246 is configured at an end of the vertical rod 240, and a screw rod 248 connected to the motor and a guide assembly 250 coupled thereto are configured at the upper portion of the motor 246, and the guide assembly 250 is provided. The top of the) is mounted with a motor 254, the motor 254 is configured to perform the operation of rotating the coupling portion 258 of the upper.

That is, the rotational force of the motor 246 is transmitted to the screw rod 248, the rotational force is transmitted to the guide assembly 250, the rotational force of the guide assembly 250 is used for raising and lowering. That is, the guide assembly 250 is raised and lowered to raise the engaging portion 258 to the position that can be engaged with the engaging portion 272 of the surfer 270 in the state in which the lifter 230 is standing vertically, both engaging portions As the motor 254 is driven while the motors 272 and 258 are assembled, rotational force is transmitted to the surfer 270 through both coupling parts 272 and 258, and the surfer 270 drives the motor 246. As a result of being raised by the glass substrate 220 is turned in the desired direction by the driving of the motor 254. Here, reference numeral 256 of FIG. 4 means a rotating shaft which transmits the rotational force of the motor 254 to the coupling unit 258.

As a result, as shown in FIG. 6, the coupling part 258 of the lifter 230 is raised to assemble with the coupling part 272 of the surfer 270, and the coupling part 258 is rotated to be seated on the surfer 270. The glass substrate 220 is turned to a desired position.

According to the present invention, the space utilization is improved by installing a lifter for turning the glass substrate in the space for performing the macro inspection, and the driving time is reduced by not having to load the glass substrate into a separate place. Multi-step process for inspection can be reduced, thereby improving workability.

In addition, the lifter used for the macro inspection according to the present invention is configurable as one assembly in the holder has the effect of reducing the manufacturing cost.

Claims (15)

A macro inspection apparatus for visually inspecting a defect of a glass substrate for a flat panel display panel, A holder holding the glass substrate loaded at a predetermined position and driven in a horizontal and inclined state for macro inspection of the glass substrate; A supporter mounted on the holder to support a lifting state of the glass substrate mounted on the holder; Installed in the lower part of the holder, driven obliquely in the standby state and driven vertically in the use state, in which the end portion forming the first engagement portion is raised to engage with the surfer, providing rotational force in the engaged state A lifter for turning the glass substrate held in the holder to a desired position; A backlight installed at the back of the device to perform the back lighting of the glass substrate; And The light facing the front surface of the glass substrate is installed on the upper portion to provide the irradiation light for macro inspection of the glass substrate Macro inspection apparatus of the glass substrate for a flat panel display comprising a. The method according to claim 1, The surfer has a rectangular parallelepiped shape corresponding to the glass substrate and has a frame that crosses therein, and a second coupling part configured to be coupled to the first coupling part of the lifter is formed at a lower portion of the center portion. Macro inspection device for glass substrates for flat panel displays. The method according to claim 2, The first coupling portion and the second coupling portion macro inspection apparatus of the flat panel display, characterized in that the gear has a configuration that is coupled. The method according to claim 2, And the first coupling part and the second coupling part are screw coupled to each other. The method according to claim 1, wherein the lifter, A vertical rod hinged to a predetermined base; First driving means for driving the vertical rods to vertical and inclined positions; Second driving means mounted to an end of the vertical rod to raise and lower the first coupling part; And And third driving means mounted on an upper portion of the second driving means to rotate the first coupling part. And the surfer is raised and lowered in conjunction with the rising and falling of the second driving means to lift the upper glass substrate, and turn on the glass substrate by the rotation of the third driving means. Inspection device for glass substrates. The method of claim 5, wherein the first drive means, A first motor providing a rotational force; And And a joint means for converting the rotational force of the first motor into a driving force for moving forward and backward and transferring the driving force to the vertical rods. The method of claim 5, wherein the second drive means, A second motor providing a rotational force; And And a guide assembly for converting the rotational force of the second motor into a driving force for raising and lowering to guide the lifting and lowering of the second motor. The method according to claim 5, wherein the third drive means, A third motor providing a rotational force; And a rotation shaft which receives the rotational force of the third motor and transmits the rotational force of the third motor to the first coupling part. A glass substrate for performing a macro inspection is held in a holder, and is mounted on a macro inspection apparatus of a glass substrate for a flat panel display which performs a macro inspection on a glass substrate using a light that provides a backlight on the side and an irradiation light on the upper side. In the lifter of the glass substrate; A vertical rod hinged to a predetermined base; First driving means for driving the vertical rods to vertical and inclined positions; Second driving means mounted to an end of the vertical rod to raise and lower a first coupling part; And Third driving means mounted on an upper portion of the second driving means to rotate the first coupling part; And And a supporter mounted on the holder to support a lifting state of the glass substrate seated on the upper part and having a second coupling part at the center lower portion thereof. The surfer is lifted and lowered by lifting the glass substrate on the upper side by interlocking with the first and second coupling parts in conjunction with the rising and falling of the second driving means, and by rotating the third driving means. And a glass substrate lifter mounted on the macro inspection apparatus of the glass substrate for flat panel display, which turns the glass substrate held in the holder to a desired position. The method according to claim 9, The surfer has a rectangular parallelepiped shape corresponding to the glass substrate and has a frame that crosses therein, and a second coupling part configured to be coupled to the first coupling part of the lifter is formed at a lower portion of the center portion. A glass substrate lifter mounted on a macro inspection device for glass substrates for flat panel displays. The method according to claim 9, And a first coupling portion and a second coupling portion of the glass substrate mounted on the macro inspection apparatus of the glass substrate for a flat panel display. The method according to claim 9, And the first coupling part and the second coupling part are screw coupled to each other. The lifter of the glass substrate mounted to the macro inspection apparatus of the glass substrate for a flat panel display. The method according to claim 9, wherein the first drive means, A first motor providing a rotational force; And Lifting means of the glass substrate mounted to the macro inspection apparatus of the glass substrate for a flat panel display, characterized in that it comprises; a connecting means for converting the rotational force of the first motor into a driving force for going straight and backward. The method of claim 9, wherein the second drive means, A second motor providing a rotational force; And A guide assembly for converting the rotational force of the second motor into a driving force for raising and lowering to perform a guide for raising and lowering the glass motor for mounting the macro inspection apparatus of the glass substrate for a flat panel display. Lifter. The method according to claim 9, wherein the third drive means, A third motor providing a rotational force; And a rotation shaft which receives the rotational force of the third motor and transmits the rotational force to the first coupling unit. The lifter of the glass substrate mounted on the macro inspection apparatus of the glass substrate for a flat panel display.

Images