KR20050057992A - Trimming apparatus for flat panel display - Google Patents

Abstract

The present invention relates to a trimming device for a flat panel display, comprising: a trimming table; A stage provided on the trimming table and on which a panel to be trimmed is mounted; At least one trimming unit having a laser scope for imaging a region of the panel seated on the stage and removing metal lines of the region; And a unit moving means provided in the trimming table and configured to move the trimming unit in at least one direction so that the trimming unit can be disposed above the panel. Accordingly, after removing the metal wire of the region without cutting the shorting bar region, and attaching the driving IC to the region, the process may be simplified by reducing the loss caused by cutting the shorting bar region.

Description

Trimming apparatus for Flat Panel Display

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trimming device for a flat panel display. More particularly, the present invention relates to a trimming device for a flat panel display. The present invention relates to a trimming device for a flat panel display, so that the process can be simplified.

The so-called flat panel display (FPD) refers to a flat panel display as a whole, and is categorized into a cathode ray tube (CRT) display and a liquid crystal display (LCD) to be described later.

The CRT is made of glass and panels joined together in front and rear, and the electron gun is accommodated inside the neck portion of the funnel, which has a high resolution but a heavy weight. Accordingly, as the display industry develops in recent years, the supply and demand of TFT-LCDs rather than CRTs are increasing. Hereinafter, for convenience of description, the flat panel display will be described as a panel.

The manufacturing process of the panel 101 goes through what is called a module assembly process. As shown in FIG. 1, a module assembly process is a panel in which an array substrate 101a (TFT-ARRAY) and a color filter substrate 101b (COLOR-FILTER) are assembled with liquid crystals 101c and CRYSTAL interposed therebetween. The process of attaching the driving IC 4 and the PCB substrate to the 101 and assembling the mold of the backlight and the outer mold to make the final product of the panel 101 module.

Here, looking at the prior art to attach the drive IC (4) and the control circuit as follows.

First, before attaching the driving IC 4 and the PCB substrate by "ACF", the malfunction of the panel 101 in which the array substrate 101a and the color filter substrate 101b are assembled with the liquid crystal 101c in between. Examine whether or not by checking the status.

As shown in FIG. 2, the array substrate 101a is provided with a thin metal wire having a thickness of 2 to 3 μm in a lattice shape. The metal line is divided into a horizontal line and a vertical line. The horizontal line is a gate line for transmitting a gate signal, and the vertical line is a data line for transmitting an RGB image signal.

A unique pad (PAD) (not shown) is provided in an end region of each gate line and data line to determine whether each of the gate line and the data line is positive. In addition, a shorting bar 2 is provided in the outermost region of the array substrate 101a. The shorting bar 2 is continuously connected to the gate line and the data line.

The inspection process for determining whether the panel 101 is malfunctioning is as follows.

First, an electrical signal is transmitted to the shorting bar 2 connected to any one of the gate line and the data line. Then, an electrical signal is transmitted to each of the pads provided on the other line of the gate line or the data line. If one region is short-circuited, no electrical signal is transmitted to the corresponding line, so it may be immediately determined.

On the other hand, the shorting bar 2 is merely a dummy part provided to efficiently determine whether the panel 101 is attached to the metal wire. Therefore, the area of the shorting bar 2, which is a dummy part, is removed immediately after both metal lines of the panel 101 are inspected (indicated by a dotted line in FIG. 1).

Thus, conventionally, the shorting bar 2 region including the pad portion is cut using a cutter or the like. Then, as shown in Figure 1, the driving IC 4 and the PCB substrate is attached.

However, according to this conventional method, the process is quite inconvenient because it must go through the process of cutting the shorting bar 2 area and the complicated process of attaching the driving IC 4 and the PCB substrate (control circuit).

In addition, as shown in Figure 1, since the drive IC (4) is provided on the recipe (3, TCP), a simple crimping operation in the process of connecting the recipe (3, TCP) to the panel 101 and the PCB board This can be very difficult to work with, which results in a lack of reliability.

Therefore, if the metal line of the region is removed without cutting the shorting bar 2 region and then the driving IC 4 is attached to the region, the shorting bar 2 region does not need to be cut and the process is simplified. Since the IC 4 does not need to be provided on the recipe 3, TCP, the size of the recipe 3 and TCP can be drastically reduced and simple crimping is also possible to shorten the process time and improve the reliability of the work. Could be.

Accordingly, an object of the present invention is to remove a metal wire in a region without cutting the shorting bar region, and then attach a driving IC to the region, thereby reducing the loss caused by cutting the shorting bar region, thereby simplifying the process. It is to provide a trimming device for.

In addition, another object of the present invention is that the drive IC does not need to be provided on the TCP (TCP) can significantly reduce the size of the TCP (TCP) and simple crimping is also possible, as well as shortening the process time and reliability in the work It is to provide a trimming device for a flat panel display so that this can be improved.

The object is, according to the present invention, a trimming table; A stage provided on the trimming table and on which a panel to be trimmed is mounted; At least one trimming unit having a laser scope for imaging a region of the panel seated on the stage and removing metal lines of the region; And a unit moving means provided in the trimming table and moving the trimming unit in at least one direction so that the trimming unit can be disposed above the panel.

Here, the pin support part which supports the said panel is provided in the upper surface of the said stage.

It may include a plurality of support legs provided in the lower four corner areas of the trimming table to support the trimming table in a height adjustable.

It may further include a vibration damping means provided in the trimming table to remove vibrations that may occur in the trimming table.

The unit moving means includes: an X-axis moving unit for moving the trimming unit in parallel with the loading direction of the panel loaded onto the stage; A Y-axis moving unit for moving the trimming unit along the horizontal direction with respect to the X-axis moving unit; And a Z-axis moving unit provided in the trimming unit to lift and lower the laser scope on the Y-axis moving unit.

The X-axis moving unit comprises: a pair of X-axis supporters disposed to be spaced apart from each other along a transverse direction with respect to the loading direction of the panel loaded on the stage and to stand up from an upper surface of the trimming table; A pair of X-axis rail portions respectively provided on top of the pair of X-axis supports; A pair of X-axis rail blocks provided in the pair of X-axis rails to be slidably moved in a mutual dovetail shape; And an X-axis driving unit for slidingly moving the X-axis rail block on the pair of X-axis rail portions.

The Y-axis moving unit comprises: a Y-axis supporter for interconnecting the pair of X-axis rail blocks; A Y-axis rail portion provided on the Y-axis supporter; A Y-axis rail block, one end of which is slidably coupled to the Y-axis rail and the other end of which is coupled to the trimming unit; And a Y-axis driving unit configured to slide the Y-axis rail block on the Y-axis rail part.

The Z-axis moving unit, the fixed unit is coupled to the Y-axis rail block; A movable unit coupled to the fixed unit in a liftable manner; And a Z-axis driving unit for elevating the movable unit with respect to the fixed unit.

A laser source portion for delivering a laser source to the laser scope is provided at an upper portion of the fixed unit, and light is supplied to the laser scope in the trimming table on the opposite side of the laser source portion with the laser scope therebetween. An additional may be provided.

The laser scope may be rotatably provided in a plurality of lower portions of the head portion provided in the lower portion of the laser unit.

It may further include a control unit for controlling the trimming unit and the unit moving means.

The cabinet may further include a cabinet covering the outside of the trimming table to form an appearance of the apparatus.

The apparatus may further include a monitor unit configured to output an image captured by the trimming unit.

The trimming unit includes: the laser scope for generating a laser; A plurality of prisms that refract the laser generated from the laser scope in at least one direction to converge on the panel; And a camera provided on an upper portion of a prism disposed last among a plurality of prisms to capture a corresponding working position of the panel.

A telephoto lens is provided between the last prism disposed among the plurality of prisms and the camera.

A blocking filter is provided between the prism disposed last among the plurality of prisms and the camera to prevent the reflected laser from entering the camera.

On the other hand, the laser generated from the laser scope is advantageous to have a speed of about 100mm / sec or more, and a size of 30 to 60㎛, the laser should be continuous.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Trimming device for a flat display according to the present invention,

As shown in FIG. 3 and FIG. 4, the array substrate 1a (TFT-ARRAY) and the color filter substrate 1b (COLOR-FILTER) are assembled with the liquid crystals 1c and CRYSTAL interposed therebetween. When determining whether there is a malfunction, the shorting bar 2 and the pad (not shown) are used as in the prior art, but the shorting bar 2 is not removed even after both metal lines of the panel 1 are inspected.

Therefore, compared with the conventional one, the array substrate 1a (TFT-ARRAY) region is made longer by the shorting bar 2. As such, instead of cutting the shorting bar 2, the metal line of the corresponding region formed on the array substrate 1a is removed using a trimming apparatus to be described later in detail, and then the driving IC 4 is attached to the region A. Therefore, it is different from the conventional one.

Therefore, it is not necessary to cut the shorting bar 2 region, thereby reducing the loss caused by cutting of the shorting bar 2 region, thereby simplifying the process. In addition, since the drive IC 4 does not need to be provided on the TCP 3, the size of the TCP 3 can be drastically reduced compared to the conventional one. In addition, since the process of attaching the driving IC (4) can be simply crimped, the process time can be shortened, and the reliability of the work can be improved.

Next, a trimming device for a flat panel display according to the present invention will be described in detail.

As shown in FIGS. 5 to 9, the trimming device for a flat panel display includes a cabinet 10 forming an exterior of the apparatus, a trimming table 12 provided in the cabinet 10, and a trimming table 12. While imaging the stage 16 on which the panel 1 to be trimmed (more specifically, the "array substrate 1a") is mounted and the area of the panel 1 seated on the stage 16 are imaged. Outputs a trimming unit 20 having a laser scope 20b for removing metal lines of the corresponding area, a unit moving unit for moving the trimming unit 20 in at least one direction, and an image captured by the trimming unit 20 It comprises a monitor unit 32 to.

As shown in FIG. 5, the cabinet 10 includes a plurality of unit side wall portions 10a to protect the trimming table 12 and the trimming unit 20 from the outside. If the trimming device for the flat panel display is not used, the cabinet 10 may be closed. In the upper part of the cabinet 10, a plurality of dust collectors 10b are provided.

The trimming table 12 is provided inside the cabinet 10 and is manufactured in a surface plate. Although not shown in the trimming table 12, vibration damping means for removing vibrations that may occur from the outside and the inside is provided.

The lower four corners of the trimming table 12 support the trimming table 12 and are equipped with a plurality of support legs 14 for adjusting the height of the trimming table 12.

On the upper surface of the stage 16, a plurality of pin supporting portions 16a for supporting the panel 1 to be trimmed are provided. By supporting the panel 1 using the plurality of pin supporting portions 16a in this manner, the panel 1 can maintain flatness within 0.1 mm, for example.

The unit moving means is provided in the trimming table 12, and the trimming unit 20 is moved so that the laser scope 20b provided in the trimming unit 20 can approach the trimming target panel 1 down close to the upper position of the trimming unit. It is moved in at least one direction. Here, one direction refers to the X-axis, Y-axis, and Z-axis as mentioned later.

The unit moving unit includes an X-axis moving unit 40 and an X-axis moving unit 40 for moving the trimming unit 20 side by side with respect to the loading direction of the panel 1 to be trimmed loaded onto the stage 16. Z to move the trimming unit 20 in the transverse direction with respect to the Y) and the trimming unit 20, Z to move the laser scope (20b) a predetermined distance on the Y-axis moving unit (50) It includes a shaft moving unit (60).

In the following, reference numerals for the unit moving means will be omitted since it is difficult to designate reference numerals in the drawings of the unit moving means. In addition, the movement of the unit moving means in the X-axis, Y-axis and Z-axis adopts an LM Guide structure in which a ball screw that is rotated by a motor is mounted to move the detailed description thereof. Shall be.

As shown in FIG. 6, the X-axis moving parts 40 are spaced apart from each other along the transverse direction with respect to the loading direction of the panel 1 loaded on the stage 16 and stand up from the upper surface of the trimming table 12. On a pair of X-axis support 41, a pair of X-axis rail portion 42 provided on the upper end of the pair of X-axis support 41, and a pair of X-axis rail portion 42 A pair of X-axis rail blocks 43 provided to be slidably movable in a dovetail shape and an X-axis driving part 44 for sliding the X-axis rail blocks 43 on the pair of X-axis rail parts 42 are provided. Include.

The Y-axis moving part 50 includes a Y-axis support 51 for connecting a pair of X-axis rail blocks 43, a Y-axis rail part 52 provided at the Y-axis support 51, and one end thereof. Y-axis rail block 53 coupled to the Y-axis rail portion 52 and the other end is coupled to the trimming unit 20, and Y-axis rail block 53 to slide the Y-axis rail block 53 on the Y-axis rail portion 52 Y-axis drive part 54 is included.

As shown in FIG. 7, the Z-axis moving unit 60 includes a fixed unit 62 coupled to the Y-axis rail block 53 and a movable unit 64 coupled to the fixed unit 62 in a liftable manner. And a Z-axis driving portion 66 provided in the stationary unit 62 to move the movable unit 64 up and down with respect to the stationary unit 62.

On the other hand, the trimming unit 20 which performs the trimming operation on the panel 1 while moving in the X, Y, and Z directions by the unit moving means is a laser scope 20b for generating a laser as briefly illustrated in FIG. ), A plurality of prisms 21a to 21c for refracting the laser generated from the laser scope 20b in at least one direction to converge on the panel 1, and a prism disposed last among the plurality of prisms 21a to 21c. It is provided in the upper part of 21c) and the camera 22 which image | photographs the said working position of the panel 1 is included.

At this time, a telephoto lens 23 is provided between the prism 21c and the camera 22 disposed last of the plurality of prisms 21a to 21c, and is reflected between the telephoto lens 23 and the prism 21c. The blocking filter 24 which prevents a laser from injecting into the camera 22 is provided.

Accordingly, a laser is generated in the laser scope 20b, and is refracted through the prisms 21a and 21b in turn, and then is refracted through the prism 21c disposed at the end to enter the panel 1. The metal wire of the corresponding region formed on the array substrate 1a can be removed. Of course, after removal, the driving IC 4 is attached to the area A.

At this time, it is advantageous that the laser generated from the laser scope 20b has a speed of about 100 mm / sec or more and a size of 30 to 60 μm, and the metal wires should be removed while being continuously generated.

On the other hand, the upper portion of the fixed unit 62 forming the trimming unit 20 is provided with a laser source portion 20c for transmitting the laser source to the laser scope (20b). The head 20a is provided below the trimming unit 20, and a plurality of laser scopes 20b are provided only at the head 20a.

At this time, the plurality of laser scopes 20b are rotatably arranged by the rotating member 20d provided in the head portion 20a. As such, the reason why the plurality of laser scopes 20b are formed is to select the resolution and the intensity of the laser beam to capture the image.

A light supply unit (not shown) for transmitting light toward the laser scope 20b is provided in the trimming table 12 on the opposite side of the laser source unit 20c with the laser scope 20b interposed therebetween. The light supply unit is provided to allow the laser scope 20b to be output brighter to the monitor unit 32 in the process of removing the metal line of the panel 1.

On the other hand, the trimming unit 20 and the unit moving means described above are controlled by a predetermined control unit 34 (see Fig. 9). That is, the operator controls the position of the trimming unit 20 through the unit moving means by controlling the control unit 34 (see FIG. 9) while checking the image displayed on the monitor unit 32 and the laser scope 20b. By means of which the corresponding metal wire region of the panel 1 can be removed.

In this way, the position control and trimming operation of the trimming unit 20 by the unit moving means from the loading of the panel 1 is performed by controlling the control unit 34 while the operator checks the monitor unit 32. However, all of these work actions may be made to be performed automatically by a predetermined control program.

Referring to the trimming operation process by the trimming device for a flat panel display having such a configuration as follows.

A panel 1 to be trimmed is taken out by a transfer robot from a cassette (not shown) in which a plurality of panels are stored and loaded onto the stage 16 on the trimming table 12.

When the panel 1 to be trimmed is seated on the stage 16 and the trimming position of the panel 1 is set, the unit moving means is driven. That is, the X-axis rail block 43 is moved in the X-axis direction on the X-axis rail part 42 by the X-axis drive part 44, and the Y-axis rail block 53 is moved by the Y-axis drive part 54. On the Y-axis rail portions 52a and 52b, they are moved in the Y-axis direction, respectively.

As such, when the trimming unit 20 is disposed above the working position of the panel 1 by the X-axis moving unit 40 and the Y-axis moving unit 50, the Z-axis moving unit 60 operates. That is, the movable unit 64 is moved downward by a predetermined distance toward the panel 1 to be trimmed with respect to the fixed unit 62 by the Z-axis driving unit 66.

If it is moved downwardly, the laser is generated in the laser scope 20b by the control unit 34 and is refracted through the prisms 21a and 21b in turn, and is then refracted through the prism 21c disposed last. By entering 1), the metal wire of the corresponding region formed in the array substrate 1a of the panel 1 can be removed.

After that, the driver IC 4 is attached to the corresponding area A, and the panel 1 and the PCB board are interconnected through the TCPs 3 and TCP.

Therefore, as in the prior art, after removing the metal wire in the region without cutting the region of the shorting bar 2 and then attaching the driving IC 4 to the region, the process of reducing the loss caused by the cutting of the region of the shorting bar 2 is reduced. There is an effect that can be simplified.

In addition, since the drive IC 4 does not need to be provided on the TCP (3, TCP), it is possible to significantly reduce the size of the TCP (TCP) and simple crimping is also possible, which not only shortens the process time but also improves reliability in the work. There is an effect that can be.

In the above-described embodiment, the unit moving means includes a Z axis moving part, but it is not necessary to employ the Z axis moving part if it is assumed that the trimming unit does not need to approach the panel.

As described above, according to the present invention, by removing the metal wire of the region without cutting the shorting bar region, and attaching the driving IC to the region, the process can be simplified by reducing the loss caused by cutting the shorting bar region. There is.

In addition, according to the present invention, since the drive IC does not need to be provided on the TCP, it is possible to drastically reduce the size of the TCP and to enable simple crimping, as well as to shorten the process time and improve the reliability of the work. There is an effect that can be.

1 is a view briefly showing a conventional module assembly process,

2 is a schematic plan view of an array substrate constituting a conventional panel;

3 is a view briefly showing a module assembly process according to the present invention,

4 is a schematic plan view of an array substrate forming a panel of the present invention;

5 is a perspective view of a trimming device for a flat display according to the present invention;

6 is a partially enlarged perspective view of FIG. 5;

7 is a partially enlarged perspective view of FIG. 6;

8 is a view schematically illustrating the flow of a laser in a trimming device for a flat panel display according to the present invention;

9 is a control block diagram of a trimming device for a flat panel display according to the present invention.

* Explanation of symbols for the main parts of the drawings

 1: Panel 1a: Array Board

1b: color filter substrate 1c: liquid crystal

 2: shorting bar 3: TCP (TCP)

 4: Drive IC 10: Cabinet

12: trimming table 14: support leg

16: stage 20: trimming unit

21a ~ 21c: Prism 22: Camera

23 telephoto lens 24 blocking filter

32: monitor 34: control

40: X axis moving part 50: Y axis moving part

60: Z axis moving part

Claims (18)

A trimming table; A stage provided on the trimming table and on which a panel to be trimmed is mounted; At least one trimming unit having a laser scope for imaging a region of the panel seated on the stage and removing metal lines of the region; And a unit moving means provided on the trimming table and configured to move the trimming unit in at least one direction so that the trimming unit can be disposed above the panel. The method of claim 1, And a plurality of pin supporting portions for supporting the panel on an upper surface of the stage. The method of claim 1, And a plurality of support legs provided in the lower four corner regions of the trimming table to support the trimming table in a height-adjustable manner. The method of claim 3, And a vibration damping means provided on the trimming table to remove vibrations that may be generated in the trimming table. The method of claim 1, The unit moving means, An X-axis moving unit which moves the trimming unit in parallel with the loading direction of the panel loaded onto the stage; A Y-axis moving unit for moving the trimming unit along the horizontal direction with respect to the X-axis moving unit; And a Z-axis moving unit provided in the trimming unit to lift and lower the laser scope on the Y-axis moving unit. The method of claim 5, The X-axis moving unit, A pair of X-axis supports spaced apart from each other along a transverse direction with respect to the loading direction of the panel loaded on the stage and standing up from an upper surface of the trimming table; A pair of X-axis rail portions respectively provided on top of the pair of X-axis supports; A pair of X-axis rail blocks provided in the pair of X-axis rails to be slidably moved in a mutual dovetail shape; And an X-axis driving unit for slidingly moving the X-axis rail block on the pair of X-axis rail portions. The method of claim 6, The Y-axis moving unit, A Y-axis supporter for interconnecting the pair of X-axis rail blocks; A Y-axis rail portion provided on the Y-axis supporter; A Y-axis rail block, one end of which is slidably coupled to the Y-axis rail and the other end of which is coupled to the trimming unit; And a Y-axis driving unit for slidingly moving the Y-axis rail block on the Y-axis rail portion. The method of claim 7, wherein The Z-axis moving unit, A fixed unit coupled to the Y-axis rail block; A movable unit coupled to the fixed unit in a liftable manner; And a Z-axis driving unit for elevating the movable unit with respect to the fixed unit. The method of claim 8, A laser source portion for delivering a laser source to the laser scope is provided at an upper portion of the fixed unit, and light is supplied to the laser scope in the trimming table on the opposite side of the laser source portion with the laser scope therebetween. Flat display trimming device, characterized in that provided. The method of claim 1, The laser scope is a trimming device for a flat panel display, characterized in that a plurality of rotatable in the lower portion of the head portion provided in the lower portion of the laser unit. The method according to any one of claims 1 to 10, And a control unit for controlling the trimming unit and the unit moving means. The method of claim 1, And a cabinet which covers the outside of the trimming table to form an exterior of the device. The method of claim 1, And a monitor unit for outputting an image picked up by the trimming unit. The method of claim 1, The trimming unit, The laser scope generating a laser; A plurality of prisms that refract the laser generated from the laser scope in at least one direction to converge on the panel; And a camera provided on an upper portion of a prism disposed last among a plurality of prisms to capture a corresponding working position of the panel. The method of claim 14, A telephoto lens trimming device, characterized in that a telephoto lens is provided between the last prism and the camera among a plurality of prisms. The method of claim 15, And a blocking filter for preventing the reflected laser from entering the camera between the prism disposed last of the plurality of prisms and the camera. The method of claim 14, wherein And a laser generated from the laser scope has a speed of about 100 mm / sec or more and a size of 30 to 60 μm. The method of claim 17, Trimming device for a flat panel display, characterized in that the laser generated from the laser scope is continuous.