KR20060028283A - Aparatus for removing protecting film of sunstrate and removing method protecting film of substrate using the same - Google Patents

Abstract

The present invention relates to a protective film removing apparatus for a substrate capable of completely removing a protective film from a substrate and a method for removing a protective film using the same, the substrate having a protective film attached thereto, and a substrate transferring the substrate. It provides a protective film removing apparatus of a substrate comprising a transfer roller and a plurality of adsorption bars for adsorbing a protective film attached to the substrate.

Protective film, adsorption bar, feed roller

Description

Apparatus for removing protective film of substrate and film removing method using same {APARATUS FOR REMOVING PROTECTING FILM OF SUNSTRATE AND REMOVING METHOD PROTECTING FILM OF SUBSTRATE USING THE SAME}

1 is a cross-sectional view schematically showing a structure of a general liquid crystal display device.

2 is a view showing a substrate with a protective film;

Figure 3 is a schematic view showing a device for removing a protective film of a conventional substrate.

Figure 4 is a schematic view showing a device for removing a protective film of the substrate according to the present invention.

5 is a view showing in detail the adsorption bar of the present invention.

** Explanation of symbols for main parts of drawings **

31: substrate 33: feed roller

35: adsorption bar 35 '; Support bar

35a: adsorption hole 36: protective film collection box

37: air supply unit 38: vacuum pump

The present invention relates to an apparatus for removing a protective film of a substrate, and more particularly, to an apparatus for removing a protective film of a substrate and a method of removing a protective film using the same to reduce a noise and improve a working environment.

Recently, with the development of various portable electronic devices such as mobile phones, PDAs, and notebook computers, there is a growing demand for flat panel display devices for light and thin applications. Such flat panel displays are being actively researched, such as LCD (Liquid Crystal Display), PDP (Plasma Display Panel), FED (Field Emission Display), VFD (Vacuum Fluorescent Display), but mass production technology, ease of driving means, Liquid crystal display devices (LCDs) are in the spotlight for reasons of implementation.

1 schematically illustrates a cross section of a general liquid crystal display device. As shown in the figure, the liquid crystal display device 1 is composed of a lower substrate 5 and an upper substrate 3 and a liquid crystal layer 7 formed between the lower substrate 5 and the upper substrate 3. . Although the lower substrate 5 is a driving element array substrate, although not shown in the drawing, a plurality of pixels are formed on the lower substrate 5, and each pixel is driven such as a thin film transistor. An element is formed. The upper substrate 3 is a color filter substrate, and a color filter layer for real color is formed. In addition, a pixel electrode and a common electrode are formed on the lower substrate 5 and the upper substrate 3, respectively, and an alignment film for aligning liquid crystal molecules of the liquid crystal layer 7 is coated.

The lower substrate 5 and the upper substrate 3 are joined by a sealing material 9, and a liquid crystal layer 7 is formed therebetween to drive elements formed on the lower substrate 5. By driving the liquid crystal molecules by controlling the amount of light passing through the liquid crystal layer, information is displayed.

As described above, the liquid crystal display device is formed on a transparent glass substrate, and a protective film for protecting the substrate is attached before the element is formed on the glass substrate.

2 shows a glass substrate before the device is made, and as shown in the drawing, before the device is made, the glass substrate 10 has an upper protective film 11A and a lower part on the upper and lower surfaces thereof. The protective film 11B is attached. The protective films 11A and 11B are used to prevent the glass substrate 10 from being contaminated from foreign matters and to protect the surface from scratches. Before the process of the liquid crystal display device, The protective film is removed. In addition, the protective films 11A and 11B cover one side of the protective film so that the protective film 11A and 11B can be easily separated from the substrate 10, and the remaining dummy region is formed.

The protective film may be manually removed by an operator, but such manual work may cause contamination of the substrate by the operator's hands and reduce work efficiency, thereby protecting the substrate for automatically removing the protective film of the substrate. The film remover is used.

Figure 3 schematically shows a conventional protective film removing device of the substrate, as shown in the drawing, the conventional protective film removing device 20 of the substrate is a film for sucking the protective film 29 attached to the substrate 21 The suction roll 25 and the protective film 29 is composed of an air supply unit 27 for supplying air to be adsorbed on the film suction roll 25.

The surface of the film suction roll 25 is provided with a suction port (25a) for sucking the protective film 29 separated from the substrate, one side of the protective film 29 sucked in the suction port (25a) A film collecting box 26 for collecting is provided.

When the substrate 21 to which the protective film 29 is attached is transferred to the protective film removing apparatus 20 configured as described above, air (marked with an arrow) from the air supply part 27 provided at the front end of the substrate 21 is indicated. ) Is discharged, and the film protruding to one side of the substrate 21 is in close contact with the film suction roll 25. Subsequently, the film suction roll 25 sucks the protective film 29 proximate the surface of the film suction roll 25 through the suction port 25a, and sucks the sucked protective film 29 into the film collection box 26. ) Is automatically inserted. When the substrate 21 is transported by the transfer roller 25 and passes through the protective film removing device, all of the protective films 29 attached to the substrate 21 are separated, and the substrate from which the protective film is removed is Prepared for the next process (cleaning process).

However, since the substrate is continuously transported even when the protective film removing apparatus of the conventional substrate as described above is not normally separated from the substrate, the protective film is often not completely removed from the substrate.

In addition, since the film suction port formed in the film suction roll needs a suction force enough to separate the protective film from the substrate and suck the film, the noise inside the workplace is large while the film is sucked into the film suction port. There was a problem.

Accordingly, the present invention has been made to solve the problems described above, an object of the present invention to provide a protective film removing apparatus of the substrate that can completely remove the protective film attached to the substrate.

In addition, another object of the present invention to provide a protective film removing device of the substrate that can reduce the noise.

The substrate, other objects and features of the invention will be described in more detail in the configuration and claims of the invention described below.

Apparatus for removing the protective film of the substrate of the present invention for achieving the above object includes a substrate with a protective film, a substrate transfer roller for transporting the substrate and a plurality of adsorption bars for adsorbing the protective film attached to the substrate; It is composed.

The protective film has a dummy film protruding toward one side of the substrate, and is provided with an air supply unit for supplying air such that the dummy film is in close contact with the adsorption bar.

In addition, a vacuum pump is configured to be connected to the adsorption bar to allow the adsorption bar to adsorb the dummy film, and the adsorption bar is supported by the support bar.

In addition, it may be configured to further include a protective film collection box for collecting the protective film adsorbed on the adsorption bar.

In addition, the method of removing the protective film of the substrate according to the present invention is a protective film is attached, the substrate having a dummy film on one side is transferred to the suction bar by the substrate feed roller, and air from the air supply to the dummy film Supplying the adsorbed dummy film to the adsorption bar, and separating the protective film from the substrate while transporting the substrate by the substrate transfer roll. The method may further include collecting the protective film adsorbed on the adsorption bar to the protective film collection box.

At this time, it is formed integrally with the adsorption bar, by rotating the support bar for supporting the adsorption bar, positioning the adsorption bar on the protective film collection box and separating the protective film from the adsorption bar, inside the protective film collection box The collection step is made.

As described above, the present invention is to remove the protective film attached to the substrate by using the adsorption bar, to completely remove the protective film from the substrate, to reduce the noise. That is, according to the present invention, since the protective film is automatically separated from the substrate as the substrate is transported in the state of being adsorbed on the adsorption bar without inhaling the protective film, the noise can be reduced as compared with the conventional art. In addition, the present invention can be prevented from remaining on the substrate because the protective film adsorbed on the adsorption bar is separated in a batch over the substrate as a starting point.

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

 Figure 4 is a schematic view showing a protective film removing apparatus of the substrate according to the present invention, Figure 5 is a detailed view of the adsorption bar of the present invention.                     

First, as shown in Figure 4, the protective film removing device 30 of the substrate according to the present invention is a suction bar 35 and the protective film 39 to suck the protective film 39 attached to the substrate 31 ) Is composed of an air supply unit 37 for supplying air so that the suction bar 35 can be normally adsorbed. Then, the substrate 31 to which the protective film 39 is attached is transferred to the adsorption bar 39 by the substrate transfer roller 33.

The adsorption bar 35 is supported by a support bar 35 ′ integrally formed with the adsorption bar 35, and the adsorption bar 35 is provided at one end of the support bar 35 ′ with the protective film 39. The vacuum pump 38 which can adsorb | suck is provided. That is, the suction bar 35 sucks the outside air by driving the electric pump 38, and the protective film 39 is sucked by the suction bar 35 by the suction of the outside air. Accordingly, one end of the suction bar 35 is formed with a suction hole 35a (see FIG. 5) for suctioning external air, and one or more suction holes 35a may be formed. The shape may also be variously formed, such as a stripe or a circle.

On the other hand, an air supply unit 37 for supplying air is provided at the front end of the adsorption bar 35, the air supply unit 37, the substrate 31 is transferred to the position of the adsorption bar 35, the substrate By supplying air to one side of the protective film 39 attached to the (31), it helps the protective film 39 is adsorbed to the adsorption bar (35). In addition, a protective film collection box 26 for removing the protective film from the substrate and collecting the removed protective film is provided in an area adjacent to the support bar 35 ′.

 The protective film removing apparatus of the substrate configured as described above, removes the protective film attached to the substrate through the following process.

First, the substrate 31 to which the protective film 39 is attached is transferred to the position of the suction bar 35 by the transfer roller 33. In this case, although not shown in detail in the drawing, the protective film 39 is attached to the upper and lower surfaces of the substrate 31, respectively, the upper and lower protective films attached to the upper and lower surfaces are fixed to one side of the substrate It protrudes with a width (see Fig. 2).

Air is supplied to one side of the substrate 31 transferred to the suction bar 35 through an air supply unit 37. At this time, the dummy film protruding to one side of the substrate by the air supplied from the air supply unit 37 is erected in the vertical direction, to rise to the position of the suction bar. Then, the dummy film is adsorbed to the adsorption bar 35 by the adsorption bar 35. Here, the dummy film means a protective film of a region protruding to one side of the substrate, the dummy film is made to facilitate the normal adsorption of the protective film on the adsorption bar.

When the protective film 39 is adsorbed on the suction bar 35, the substrate 31 moves by the rotation of the substrate transfer roller 33 to pass through the suction bar 35. 39 is completely separated from the substrate. At this time, since the adsorption bar 35 adsorbs the protective film 39 by the driving of the vacuum pump 38, noise generation is very low as compared with the conventional art. That is, in the related art, since the protective film is sucked through the suction port formed in the suction roll, the noise generated while the protective film is sucked is greatly reduced, but in the present invention, the protective film is simply moved by the substrate in the state of being adsorbed on the suction bar. Since the protective film is removed from the substrate, less noise is generated than in the prior art.

In addition, since the protective film is continuously and collectively removed as the substrate moves with the protective film adsorbed on the adsorption bar as a starting point, the protective film can be completely removed from the substrate.

In addition, the protective film 39 adsorbed to the adsorption bar 35 is disposed in the protective film collection box 36 prepared in advance. The support bar 35 ′ rotates to position the adsorption bar 35 where the protective film collection box 36 is located, and then stops driving the vacuum pump, thereby preventing the protection film from the adsorption bar 35. 39 may be separated, and the protective film 39 separated from the adsorption bar 35 is disposed in the protective film collecting box 36 positioned at the lower portion thereof.

On the other hand, without the protective film collection box 36, the operator can remove the protective film 39 completely separated from the substrate directly from the suction bar 35, but the support bar 35 'is rotated Since no operator is required, productivity can be improved.

As described above, the substrate 31 from which the protective film 39 has been completely removed is prepared for the next process (for example, the cleaning process, etc.), and then the next substrate is transferred to the substrate to remove the protective film. By 33 is transferred to the position of the adsorption bar, the process as described above to remove the protective film.

On the other hand, although not described in the embodiment of the present invention, the protective film attached to the upper surface and the lower surface of the substrate may be removed at the same time. That is, when the substrate is formed at the same time the adsorption bar on the upper and lower, it is possible to remove the upper and lower protective film at the same time.

As described above, the present invention relates to a protective film removing apparatus of a substrate and a protective film removing method using the same, in particular, less noise, the protective film removing apparatus that can be completely removed without leaving a protective film from the substrate and its removal Provide a method. Conventionally, the protective film is removed from the substrate by suctioning the protective film into the suction port formed on the suction roll surface. However, in order to separate the protective film attached to the substrate from the substrate, and to suck it back to the suction port, the suction capacity of the suction port should be very excellent, and accordingly, there was a very big problem of noise generation. On the other hand, in the present invention, the adsorption bar is used instead of the conventional suction roll, and the protective film is adsorbed to the adsorption bar, and thus the protective film is removed through the movement of the substrate.

In addition, in the prior art, the protective film was separated from the substrate by simply suctioning the suction roll, but in the present invention, after adsorbing the dummy film using the suction bar, the protective film is separated by moving the substrate, thereby removing the protective film from the substrate Can be removed completely.

As described above, according to the present invention, noise generation can be reduced by removing the protective film attached to the substrate using the adsorption bar. In this way, by reducing the noise generated in the workplace, there is an effect that can improve the working environment.

In addition, the present invention by removing the protective film attached to the substrate using the adsorption bar, it is possible to completely remove the protective film from the substrate, thereby, there is an effect that can further improve the productivity.

Claims (9)

A substrate having a protective film attached thereto; A substrate transfer roller for transferring the substrate; And Apparatus for removing a protective film of the substrate comprising a plurality of adsorption bars for adsorbing the protective film attached to the substrate. The apparatus of claim 1, wherein the protective film comprises a dummy film protruding from one side of the substrate. The apparatus of claim 2, further comprising an air supply unit supplying air so that the dummy film is in close contact with the adsorption bar. 2. The apparatus of claim 1, further comprising a support bar formed integrally with the adsorption bar and supporting the adsorption bar. 5. The apparatus of claim 4, further comprising a vacuum pump connected to one end of the support bar to allow the suction bar to suck external air. The apparatus of claim 1, further comprising a protective film collection box for collecting the protective film adsorbed to the adsorption bar. The protective film is attached, the substrate having a dummy film on one side is transferred to the adsorption bar by the substrate transfer roller; Supplying air to the dummy film from an air supply unit, and adsorbing the dummy film to the suction bar; Removing the protective film from the substrate while transferring the substrate by the substrate transfer roll. The method of claim 7, further comprising the step of collecting the protective film adsorbed on the adsorption bar to the protective film collection box. The method of claim 8, wherein the collecting of the protective film from the adsorption bar into the protective film collection box comprises: It is formed integrally with the adsorption bar, rotating the support bar for supporting the adsorption bar, positioning the adsorption bar on the protective film collection box; And Removing the protective film from the adsorption bar, the protective film removing method comprising the step of collecting inside the protective film collection box.

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