KR20070069511A - Lift pin module of fpd manufacturing machine - Google Patents

Abstract

A lift pin module of a flat panel display manufacturing apparatus is provided to reduce cost and to simplify the structure of equipment by reducing the number of used bellows. A lift pin module includes lift pins(124a), fixing plates(124b), and bellows(B). The lift pins are arranged on a stage at regular intervals. A lower end of each lift pin is fixed on an upper surface of the fixing plate so that the neighboring lift pins are linked and elevated together. An extended shaft(124c) is formed on a lower surface of the fixing plate. The extended shaft of the fixing plate is expended to the outside through a bottom of a chamber. The bellows seal the extended and exposed sections and are commonly used to the lift pins being grouped.

Description

LIFT PIN MODULE OF FPD MANUFACTURING MACHINE

1 is a side cross-sectional view showing a lift pin module of a conventional flat panel display device manufacturing apparatus.

2 is a cross-sectional view showing a state in which the lift pin module is mounted on the lower electrode.

3 is a side cross-sectional view illustrating a lift pin module of a flat panel display device manufacturing apparatus according to an embodiment of the present invention.

4 is a cross-sectional view illustrating a state in which the lift pin module is mounted on the lower electrode.

5A and 5B are perspective views illustrating a lift pin module of the flat panel display device manufacturing apparatus.

<Description of Symbols for Main Parts of Drawings>

114, 116: upper and lower chambers 124a: lift pins

124b: fixing plate 124c: extension shaft

126: lift pin fixing plate B: bellows

The present invention relates to a lift pin module of a flat panel display device manufacturing apparatus, and more particularly, to a lift pin module of a flat panel display device manufacturing apparatus provided to be elevated to the loading or unloading height of the substrate when loading or unloading the substrate. .

As the information society develops, the demand for display devices is increasing in various forms. In response, various flat panel display devices such as liquid crystal devices (LCDs) and plasma display panels (PDPs) have been studied. It is used as a display device in various equipments.

Among the above display devices, LCD is the most widely used as a substitute for the CRT (Cathode Ray Tube) for the use of a mobile image display device because of the advantages of excellent image quality, light weight, thinness, and low power consumption. In addition to mobile applications such as monitors, various types of monitors have been developed for television and computer monitors for receiving and displaying broadcast signals.

As described above, although various technical advances have been made in order to serve as screen display devices in various fields, the improvement of image quality as screen display devices is often arranged with the above characteristics and advantages. . Therefore, in order for a liquid crystal display device to be used in various parts as a general screen display device, development of high quality images such as high brightness and large area while maintaining the characteristics of light weight, thinness, and low power consumption is at stake. have.

The liquid crystal display device includes a liquid crystal material injected between a TFT (Thin Film Transistor) substrate having an electrode formed thereon and a CF (Color Filter) substrate coated with phosphors, and traps the liquid crystal material at two edges of the substrate. It is bonded by sealing material and is supported by spacers scattered between two substrates.

Then, a power is applied to the liquid crystal material having an anisotropic dielectric constant injected between the two substrates by using an electrode, and the intensity of the power is adjusted to adjust the amount of light transmitted through the substrate to display an image.

In order to manufacture the liquid crystal display device as described above, a lot of equipments are required, and among these, a bonding device for bonding two substrates is also an important equipment.

Conventional flat panel display device manufacturing apparatus, for example, as shown in Figure 1, the substrate bonding device, the lower base 10 and the upper base 12 is provided to be spaced apart from the lower base 10 and; And the upper and lower chambers 14 and 16 provided in the upper region of the upper base 12, and the upper and lower stages 18 and provided in the upper and lower regions of the upper and lower chambers 14 and 16. 20 and two substrates (TFT array substrate and color filter substrate S) carried in the upper and lower chambers 14 and 16 are horizontally disposed on the upper stage 18 and the lower stage 20. After that, it is designed to be joined up and down.

In addition, elevating means 30 for elevating the upper chamber 14 when the substrate S is loaded or unloaded into the upper and lower chambers 14 and 16 are provided in the bottom edge regions of the upper chamber 14, respectively. .

In addition, a plurality of lift pins 22 and 24 are provided in the lower region of the upper stage 18 and the upper region of the lower stage 20 to mount and primarily absorb the loaded substrate S. 22 and 24 are uniformly fixed and moved by one lift pin fixing plate 26 and 28 at the upper and lower ends exposed to the outside of the upper and lower chambers 14 and 16.

That is, the lift is provided with a plurality of lift pins 22 and 24 having a predetermined interval to pass through the plurality of lift pin holes formed through the upper and lower stages 18 and 20 in the thickness direction. As the pins 22 and 24 are raised and lowered along the lift pin holes, the upper and lower stages 18, which lift the substrate S or carry the substrate S loaded into the upper and lower chambers 14 and 16, respectively. 20) to serve as a seat on the phase.

Furthermore, the lift pins 22 and 24 lift the substrate S carried by the transport means (not shown) outside the upper and lower chambers 14 and 16 by a predetermined height, and then the transport means are lifted. When retracting out of the lower chambers 14 and 16, the substrate S is lowered and loaded on the upper and lower stages 18 and 20.

In this case, a plurality of lift pins 22 and 24 are provided in one upper and lower stages 18 and 20, but a plurality of lift pins 22 and 24 should be raised or lowered at the same time.

Accordingly, lift pin fixing plates 26 and 28 are provided on the upper and lower outer stages 18 and 20 and on the lower side of the upper and lower stages 18 and 20 to engage the entire lift pins 22 and 24. , 28 are lifted by a separate drive means (not shown in the figure), whereby a plurality of lift pins 22, 24 are simultaneously raised by this drive means.

On the other hand, the plurality of lift pins 22 and 24 are positioned to extend through the upper and lower walls of the upper and lower chambers 14 and 16 and extend to the lower side of the upper and lower chambers 14 and 16, respectively. The lift pin fixing plates 26 and 28 provided to be fixed to the lower regions of the pins 22 and 24 are provided above and below the upper and lower chambers 14 and 16.

Here, the upper and lower portions of the upper and lower chambers 14 and 16 of the lift pins 22 and 24, that is, the upper and lower surfaces of the upper and lower chambers 14 and 16 and the lift pin fixing plate ( Bellows B are provided to surround lift pins 22 and 24 exposed between 26 and 28.

The bellows (B) is a plurality of lift pins (22, 24) is contracted when the lift, the lower, and the lift pins 22, 24 is relaxed when falling, the upper, lower chamber (14, 16) inside It will function to maintain the vacuum state.

Here, a stage alignment process of aligning the substrate S disposed on the lower stage 20 to an accurate position before performing the bonding of the substrate S is included, and the alignment of the substrate S is performed in the lower chamber. It is implemented by the alignment means provided in contact with the three adjacent side walls of the (16).

The alignment means is fixed to the upper region of the upper base 12 in a state of being directly in contact with the lower chamber 16 of the stacked upper and lower chambers 14 and 16, and a cam provided eccentrically; It consists of a drive part which gives a rotational force to a cam.

However, as shown in FIG. 2, since the lift pins 22 and 24 require the bellows B by the quantity of the lift pins 22 and 24, the cost increases and external damage caused by the increase in the bellows B. Leakage rate is increased due to the increase in the structure of the equipment is difficult to maintain.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object thereof is to jointly use a plurality of adjacent lift pins among a plurality of bellows to reduce cost, reduce leakage rate, and simplify and maintain an equipment structure. The present invention provides a lift pin module of a flat panel display device manufacturing apparatus that can be easily repaired.

In order to achieve the above object, the present invention is a lift pin module installed in the chamber of the flat panel display device manufacturing apparatus for lifting the substrate, the lift pin module, a plurality of lift pins are arranged on the stage at regular intervals ; A fixing plate on which a lower end of each lift pin is fixed to an upper surface and an extension shaft is formed on a lower surface thereof so that the plurality of neighboring lifters can be lifted while interlocking with a plurality of neighboring lift pins; A bellows extending from the bottom of the fixing plate to the outside through the bottom of the chamber, the bellows being jointly used to lift pins grouped by one to seal the exposed portion; By including, a plurality of lift pins by dividing the appropriate number to form a group to attach the fixed plate to the bottom surface of the lift pin so as to raise and lower the group uniformly, one bellows on the extension shaft of the fixed plate It is preferable to use a joint so that the number of the bellows can be significantly reduced.

Hereinafter, with reference to the accompanying drawings, the lift pin module of the flat panel display device manufacturing apparatus of the present invention will be described with reference to an embodiment.

In the flat panel display device manufacturing apparatus according to an embodiment of the present invention as shown in Figure 3, the lower base 110 and the upper base 112 and the upper, lower chamber 114, 116 and the upper, lower stage 118 , 120) The lift pin fixing plates 126 and 128, and the lifting means 130 and the lift pin module, the rest of the components except the lift pin module has the same structure and function as that of the conventional description will be omitted. .

Meanwhile, the lift pin 124a shown in FIG. 3 shows only a part of the lift pin 124a shown in FIG. 4.

The lift pin module is composed of a lift pin 124a, a fixed plate 124b, and an extension shaft 124c, as shown in FIGS. 4 and 5A and B. The lift pin 124a has an upright pin shape. In the thickness direction of the lower stages 118 and 120, the lift pin holes to which the lift pins 124a are to be inserted are formed at regular intervals, and the lift pin holes are provided in the lift pin holes.

Here, the lift pins 124a are fixed to the fixing plate 124b in groups of two to five, and have any one shape selected from a cross-sectional shape in which the longitudinal direction or the transverse direction or the longitudinal direction and the transverse direction cross each other. Create a group

The lower end of each lift pin 124a is fixed to the upper surface and the extension shaft 124c is formed on the bottom surface of the fixing plate 124b so that the plurality of neighboring plurality of lift plates 124b can be lifted and linked together.

On the contrary, the top of each lift pin 124a may be fixed so that the fixing plate 124b of the lift pin module provided at the upper side in the upper and lower chambers 114 and 116 may be lifted while being tied together by a plurality of neighboring ones. It is fixed to the bottom surface and the extension shaft 124c is formed in the upper surface, respectively.

In addition, the fixing plate 124b is formed in a shape corresponding to the group arrangement of the lift pins 124a in a + shape or a x shape in which the longitudinal direction or the transverse direction or the longitudinal direction and the transverse direction cross each other.

In addition, the fixing plate 124b is positioned between the upper chamber 114 and the upper stage 118 and between the lower chamber 116 and the lower stage 120, and is located in the lower chambers 114 and 116. do.

Meanwhile, the upper and lower stages 118 and 120 are divided into various zones, and the fixing pins 124b are fixed to the fixing plate 124b to uniformly lift and lift the lift pins 124a provided in the divided zones. An extension shaft 124c is formed at the center of the bottom of the bottom surface, so that the extension shaft 124c is exposed to the outside of the upper and lower chambers 114 and 116.

At this time, the upper and lower lift pin fixing plates 126 and 128 are fixed to the upper and lower ends of each of the extension shafts 124c protruding toward the outer upper and lower sides of the upper and lower chambers 114 and 116, and the upper base 112. A bellows (B) is provided between the bottom of the upper surface and the lower surface of the lift pin fixing plate 126 so as to surround the extension shaft 124c, and the upper surface of the lid of the upper chamber 114 and the lower surface of the upper lift pin fixing plate 128. The bellows B is provided to surround the extension shaft 124c.

As a result, a proper number of the lift pins 124a in groups are not exposed to the outside of the upper and lower chambers 114 and 116, but the extension of the group-specific fixing plate 124b in which the lift pins 124a is formed in plural numbers. As the shaft 124c is exposed to the outside, the bellows B, which can be used jointly on each of the extension shafts 124c, reduces the number of uses of the bellows B.

However, the extension shafts 124c of the fixing plate 124b to which the plurality of lift pins 124a are fixed are fixed to the lift pin fixing plates 128 and 130, respectively, so that the lift pin fixing plates 128 and 130 are uniform. Will be elevated.

In the present invention, the number of the lift pins 124a has been described as an example of 36, but the number of the lift pins 124a can be increased or decreased. It was divided by three and the middle stage was divided by three, but it can be changed.

Meanwhile, the lift pin module may be applied to equipment for carrying in or taking out the substrate S. For example, the lift pin module may be applied to a substrate gluer or an etcher.

Therefore, the lift pin module of the flat panel display device manufacturing apparatus of the present invention is elevated to the loading or unloading height of the substrate (S) when the loading or unloading of the substrate (S) as shown in Figure 3 to 5a, b A plurality of neighboring plurality of lift pins 124a, each of which fixes the fixing plate 124b to an end of the divided lift pin 124a, and the extension shaft 124c of the fixing plate 124b is upper and lower chambers. Exposed to the outside of the 114, 116 and the end of the extension shaft 124c is fixed to the lift pin fixing plate (128, 130), respectively.

In this case, an extension shaft 124c exposed to a space between the upper base 112 and the lower lift pin fixing plate 126 and a space between the lead of the upper chamber 114 and the upper lift pin fixing plate 126. The bellows (B) wrapped from the outside to be sealed is provided respectively.

Here, the lift pins 124a for each group are fixed to the fixed plate 124b which raises and lowers uniformly for each divided zone, and the extension shaft 124c of the fixed plate 124b is located outside the upper and lower chambers 114 and 116. And the extension pin 124c exposed between the lift pin fixing plates 128 and 130 by the bellows B to seal the lift pin 124a without using the bellows B as many times as the number of the lift pins 124a. The number of bellows (B) can be reduced by tying a plurality of) and fixing it to the fixing plate (124b) and sealing the bellows (B) to the extension shaft (124c) of the fixing plate (124b).

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self-evident.

The lift pin module of the apparatus for manufacturing a flat panel display device of the present invention divides a plurality of lift pins into a plurality of groups so that the lift pin module is sealed by bellows for each of the extension shafts of the fixing plate that lifts and lifts the interlocked lift pins. Significantly reduces the number of bellows used, reduces costs, reduces the rate of leaks, simplifies the structure of the equipment and facilitates maintenance.

Claims (5)

In the lift pin module is installed in the chamber of the flat panel display device manufacturing apparatus to raise and lower the substrate, The lift pin module, A plurality of lift pins arranged on the stage at regular intervals; A fixing plate on which a lower end of each lift pin is fixed to an upper surface and an extension shaft is formed on a lower surface thereof so that the plurality of neighboring lifters can be lifted while interlocking with a plurality of neighboring lift pins; A bellows extending from the bottom of the fixing plate to the outside through the bottom of the chamber, the bellows being jointly used to lift pins grouped by one to seal the exposed portion; Lift pin module of the flat panel display device manufacturing apparatus comprising a. The method of claim 1, wherein the lift pin, Lift pin module of the flat panel display device manufacturing apparatus characterized in that each group of two to five. The method of claim 2, wherein the lift pin, The lift pin module of the flat panel display device manufacturing apparatus, characterized in that the group in any one selected from the longitudinal or transverse direction or the longitudinal direction and the transverse direction cross each other. The method of claim 3, wherein the lift pin module, Lift pin module of the flat panel display device manufacturing apparatus characterized in that provided in the substrate bonding device. The method of claim 3, wherein the lift pin module, Lift pin module of the flat panel display device manufacturing apparatus characterized in that provided in the (Etcher) equipment.

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