KR100680758B1 - Apparatus and method for removing protective sheet on optical sheet - Google Patents

Abstract

An apparatus and a method for removing a protective paper of an optical sheet are provided to prevent the optical sheet of a backlight unit from being damaged, by automatically removing the protective paper from the optical sheet during assembling of the backlight unit. A conveying unit(20) automatically conveys an optical sheet, wherein the optical sheet has a protective paper attached on an external surface thereof. A first cleaning unit(30) removes foreign particles adhering onto an external surface of the optical sheet. A first removing unit(40) partially peels off the protective paper from one portion of the optical sheet by partially touching with the optical sheet. A stopper unit(50) prevents the optical sheet from moving on the conveying unit while the first removing unit is touched with the optical sheet. A second removing unit(60) peels off the protective paper from one portion to the other portion of the optical sheet when the optical sheet is conveyed by the conveying unit.

Description

Apparatus and method for removing protective sheet on optical sheet}

1 is a cross-sectional view schematically showing the configuration of an optical sheet protective paper removing device according to the present invention.

Figure 2 is a schematic view showing a first cleaning means in the optical sheet protective paper removing device according to the present invention.

Figure 3 is a cross-sectional view schematically showing a second removing means in the optical sheet protective paper removing device according to the present invention.

Figure 4 is a schematic view showing a second cleaning means in the optical sheet protective paper removing device according to the present invention.

Figure 5 is a flow chart showing each step of the optical sheet protective paper removing method according to the present invention.

Explanation of symbols on the main parts of the drawings

1: optical sheet 2: protective paper

10 frame 20 transfer means

22: roller conveyor 30: first cleaning means

32: first roller 34: drive motor

36: second roller 40: first removing means

42: rotating body 42a: rib

44 cylinder 50 stopper means

52: support 54: cylinder

60: second removal means 62: body

62a: adsorption mechanism 64: attachment mechanism

70: second washing means 72: third roller

74: drive motor 76: fourth roller

80: blowing means S1: loading step

S12: Static elimination step S2: Primary cleaning step

S3: first removal step S4: second removal step

S42: Static elimination step S44: Secondary cleaning step

The present invention relates to an optical sheet protective paper removal device and a method for removing the protection sheet, and in particular, in order to prevent the optical sheet of the backlight unit used in the liquid crystal display device from being damaged, the protective paper laminated on the optical sheet is automatically The present invention relates to an optical sheet protective paper removing device and a method for removing the optical sheet, thereby reducing productivity of assembly of the backlight unit and improving productivity.

In general, the display by the liquid crystal display device itself is non-luminescent, so it is impossible to use it in the absence of light. Therefore, a device for uniformly illuminating the information display surface for the purpose of enabling use in a dark place is a backlight unit. (back light unit; BLU).

The backlight unit is used as a dimming device to uniformly transmit light to the entire liquid crystal display panel, and the liquid crystal display panel displays an image by constantly adjusting the amount of transmitted light.

In addition, since the backlight unit is a light source of a liquid crystal display device for notebooks, monitors, and TVs, it is necessary to emit the brightest light with the minimum power. It changes the role.

The configuration of the backlight unit includes sheets such as fluorescent lamps, reflectors reflecting light emitted from lamps, light guide plates, prisms, and the like, and support mains and guide panels that bundle these components into one unit. panel).

In the above configuration, a key component of the backlight unit is a cold cathode fluorescent lamp (CCFL), which is used as a light source for determining luminance and chromaticity, and the light generated by the cold cathode fluorescent lamp, which efficiently collects light in one direction. Light reflector with specially designed dot pattern on the back of transparent acrylic plate of PMMA (poly methyl methcrylate) resin to make the lamp reflector which is incident on (light guide plate; LGP).

The surface light source made by these three key components is combined and laminated with an optical sheet on the upper and lower parts of the light guide plate so that the light can be efficiently collected and diffused so that a person can directly see the image displayed on the liquid crystal display device. It will be commercialized to form a backlight unit.

On the other hand, on the upper and lower surfaces of the optical sheet including the light guide plate, a protective paper made of vinyl or the like is laminated in order to prevent foreign matter from getting on the optical sheet or damage such as scratches. Before, the protective paper on the optical sheet must be removed.

However, in the related art, since the worker manually removes the protective paper from the optical sheet by hand, it takes a lot of time for this, and thus there is a problem in that the productivity is significantly reduced.

In addition, since the protective sheet is laminated on the optical sheet such as the diffusion plate by the vacuum adsorption method, it is difficult for a worker to manually remove the protective sheet from the optical sheet.

The present invention has been proposed to solve the above problems, and an object thereof is to provide a protective paper laminated on the optical sheet in order to prevent the optical sheet of the backlight unit used in the liquid crystal display device from being damaged. The present invention provides an optical sheet protective paper removing device and a method for removing the optical sheet from the optical sheet automatically during assembly.

Another object of the present invention is to provide an optical sheet protective paper removing device and a method for removing productivity by reducing the time required for assembling the backlight unit.

Optical sheet protective paper removing device of the present invention for achieving the above object, the frame; Transfer means provided on the frame and configured to automatically transfer the optical sheet by loading an optical sheet having a protective paper attached to an outer surface thereof; First cleaning means for removing foreign matter attached to an outer surface of the protective sheet of the optical sheet loaded on the conveying means; By transferring the optical sheet passing through the first cleaning means a predetermined distance by the conveying means to make a rolling contact with one end of the optical sheet so that the protective paper attached to the optical sheet is partially peeled from one end of the optical sheet. First removal means for; Stopper means for preventing the optical sheet from flowing on the conveying means when the first removing means and one end of the optical sheet make a rolling contact; And attaching a protective sheet of one end of the optical sheet partially peeled off by the first removing means, so that the protective sheet is peeled off from one end of the optical sheet in the direction of the other end when the optical sheet is conveyed by the conveying means. It characterized in that it comprises a second removal means for.

The apparatus may further include second cleaning means for removing the foreign matter adhered to the outer surface of the optical sheet from which the protective paper is peeled off by transferring the optical sheet from which the protective paper is peeled off through the second removing means by a predetermined distance. It is preferable.

In addition, it is effective to further include a static electricity removing means for removing the static electricity on the outer surface of the protective paper before the optical sheet having a protective paper attached to the outer surface passes through the first cleaning means.

In addition, it is preferable to further include a blowing means for blowing off the protective paper from the optical sheet by blowing between the protective sheet attached to the second removal means and the optical sheet partially peeled off by the first removing means. .

In addition, it is effective to further include a static electricity removing means for removing the static electricity on the outer surface of the protective sheet peeled off by the second removal means.

The conveying means may preferably include a roller conveyor and a drive motor for driving the roller conveyor.

In addition, the first cleaning means is provided on the upper and lower surfaces of the optical sheet, respectively, the first roller for removing foreign matter attached to the protective paper of the optical sheet by rotating in contact with the upper and lower surfaces of the optical sheet It is effective to include a roller and a drive motor coupled to the first roller to drive the first roller.

In addition, it is preferable that one side of the first roller, the second roller for rotating in contact with the first roller to remove the foreign matter attached to the outer surface of the first roller is provided.

In addition, it is effective that the outer circumferential surface of the first roller is made of rubber with high stickiness.

In addition, the outer peripheral surface of the second roller is preferably made of an adhesive tape.

In addition, the second cleaning means is provided on the upper and lower surfaces of the optical sheet with the protective sheet peeled off, respectively, and rotated in contact with the upper and lower surfaces of the optical sheet to remove foreign substances attached to the optical sheet. It is effective to include a roller and a drive motor coupled to the third roller to drive the third roller.

In addition, one side of the third roller, it is preferable that the fourth roller for rotating in contact with the third roller to remove the foreign matter attached to the outer surface of the third roller.

In addition, it is effective that the outer circumferential surface of the third roller is made of rubber with high stickiness.

In addition, the outer peripheral surface of the fourth roller is preferably made of an adhesive tape.

In addition, the first removal means, the cylindrical rotor in contact with the one end of the optical sheet rolling; A motor coupled to the rotating body to rotate the rotating body; And it is effective to include a cylinder for moving the rotor up and down by the pressure.

In addition, the rotating body is a roller of rubber material, it is preferable that ribs are formed on the outer peripheral surface at predetermined intervals along the circumferential direction.

In addition, it is effective that the said cylinder is a pneumatic cylinder.

In addition, the stopper means preferably includes a support for supporting the other end of the optical sheet, and a cylinder for moving the support up and down by pressure.

In addition, it is effective that the cylinder is a pneumatic cylinder.

In addition, the second removal means, the body is connected to the external vacuum equipment to maintain and release the vacuum state is provided with a suction mechanism on the lower surface to suck the optical sheet, the body on one side of the body It is preferably provided integrally with the attachment mechanism for attaching the protective paper.

In addition, it is effective that the attachment mechanism is made of an adhesive tape.

In addition, the attachment mechanism is preferably made of a vacuum adsorption pad connected to the vacuum equipment.

In addition, the adsorption mechanism is effectively made of a vacuum adsorption pad connected to the vacuum equipment.

In addition, it is preferable that the static electricity removing means is made of an ionizer.

In addition, the blowing means, it is effective to include an air blower (air blower).

On the other hand, the optical sheet protective paper removing method implemented by the optical sheet protective paper removing device of the present invention configured as described above, the stacking step of loading in a predetermined conveying means for automatically conveying the optical sheet with a protective paper on the outer surface; A first cleaning step for removing foreign matter adhering to the outer surface of the optical sheet protective paper by passing the optical sheet loaded on the conveying means through a predetermined cleaning means; The protective sheet attached to the optical sheet is transferred to the optical sheet by transferring the optical sheet that has undergone the first cleaning step by a predetermined distance by the conveying means so that one end portion of the optical sheet and the roller-shaped first removing means make a rolling contact. A primary removal step for removing part of one end of the; And when the optical sheet is transferred by the conveying means by attaching a protective sheet of one end of the optical sheet partially peeled off in the first removing step, the protective sheet is peeled off from one end of the optical sheet in the direction of the other end. It characterized in that it comprises a secondary removal step to lose.

In addition, in the second removal step, the optical sheet peeled off the protective paper is transferred by the conveying means a predetermined distance, and the foreign matter attached to the outer surface of the optical sheet is removed by passing the optical sheet peeled off the protective paper through a predetermined cleaning means. It is preferable to further include a secondary cleaning step.

In addition, it is effective to further include a static electricity removing step for removing the static electricity on the outer surface of the protective sheet of the optical sheet before the first cleaning step.

In addition, it is preferable to further include a static electricity removing step for removing the static electricity of the optical sheet subjected to the secondary removal step.

Hereinafter, described in detail with reference to the accompanying drawings according to a preferred embodiment of the present invention.

1 to 5 are views for showing the optical sheet protective paper removing device and the method of removal according to the present invention, Figure 1 is a cross-sectional view schematically showing the configuration of the optical sheet protective paper removing device according to the present invention, Figure 2 Figure 3 is a schematic view showing a first cleaning means in the optical sheet protective paper removing device according to the invention, Figure 3 is a cross-sectional view schematically showing a second removing means in the optical sheet protective paper removing apparatus according to the present invention, Figure 4 Figure 2 is a schematic view showing a second cleaning means in the optical sheet protective paper removing device according to Figure 5 is a flow chart showing each step of the optical sheet protective paper removing method according to the present invention.

An optical sheet protective paper removing apparatus according to the present invention includes a frame 10 as shown in FIG. Transfer means 20; First cleaning means (30); First removal means (40); Stopper means 50; And second removal means 60.

The frame 10 is fixed to the ground, as shown in Figure 1, the upper side is provided with a conveying means 20 to be described later and the first washing means 30 to be described later along the longitudinal direction; First removal means (40); Stopper means 50; And second removal means 60 are arranged in series, and one or more motors are provided to supply power.

In addition, as shown in Figure 1, the conveying means 20 is to load the optical sheet (1) with a protective paper on the outer surface to automatically transport the optical sheet (1), a roller conveyor (roller conveyor) 22 and a driving motor (not shown) for driving the roller conveyor 22.

In addition, the first cleaning means 30 is to remove the foreign matter attached to the outer surface of the protective paper 2 of the optical sheet 1 loaded on the transfer means 20, as shown in FIG. First and lower surfaces of the sheet 1 to rotate in contact with the top and bottom surfaces of the optical sheet 1 to remove foreign substances attached to the protective paper 2 of the optical sheet 1. A roller (32) and a driving motor (34) coupled to the first roller (32) to drive the first roller (32), on one side of the first roller (32), A second roller 36 is provided to rotate in contact with the first roller 32 to remove foreign substances attached to the outer surface of the first roller 32.

At this time, the outer circumferential surface of the first roller 32 is made of rubber with high sticky property, so as to facilitate the removal of foreign substances attached to the outer surface of the protective paper 2, it is preferable that the second roller 36 The outer circumferential surface is made of an adhesive tape, and when the adhesive force is lost by rotating contact with the first roller 32 for a predetermined time, it is possible to replace with a new adhesive tape, and the optical sheet 1 having a protective paper 2 attached to the outer surface Before passing through the first cleaning means 30, the optical sheet 1 may be passed through a static electricity removing means (not shown) to remove static electricity from the outer surface of the protective paper 2, wherein the static electricity removing means is ionized. It is effective to consist of an ionizer.

Meanwhile, as shown in FIG. 1, the first removing means 40 transfers the optical sheet 1 that has passed through the first cleaning means 30 by the conveying means 20 by a predetermined distance. The protective paper attached to the optical sheet 1 is partially peeled off from the one end of the optical sheet 1 by rolling contact with one end of 1), and the rolling contact with one end of the optical sheet 1 is performed. A cylindrical rotor 42; A motor (not shown) coupled to the rotating body 42 to rotate the rotating body 42; And a cylinder 44 for moving the rotating body 42 up and down by pressure, wherein the rotating body 42 is a roller made of rubber material and has ribs on the outer circumferential surface at predetermined intervals along the circumferential direction. ) 42a is formed, and the cylinder 44 consists of a pneumatic cylinder.

In addition, the stopper means 50, as shown in Figure 1, when one end of the first removing means 40 and the optical sheet 1 is in contact with the cloud, the optical sheet 1 is the transfer means In order not to flow on the (20), and includes a support 52 for supporting the other end of the optical sheet 1, and a cylinder 54 for moving the support 52 up and down by pressure In addition, the cylinder 54 is preferably made of a pneumatic cylinder.

In addition, the second removing means 60 is attached to the protective sheet at one end of the optical sheet 1 partially peeled off by the first removing means 40, the optical sheet 1 by the transfer means 20 The protective paper is to be peeled off from one end of the optical sheet (1) in the direction of the other end when the transfer is carried, is connected to the external vacuum equipment to maintain and release the vacuum state as shown in FIG. The body 62 is provided with an adsorption mechanism 62a on a lower surface thereof so as to adsorb the optical sheet 1, and the protection paper 2 is integrally provided with the body 62 on one side of the body 62. Attachment mechanism 64 for attachment, the attachment mechanism 64 may be made of an adhesive tape, may be made of a vacuum adsorption pad connected to the vacuum equipment, the adsorption mechanism 62a, the vacuum Vacuum adsorption pad connected to the equipment Is done.

At this time, the protective paper is blown between the optical sheet 1 partially peeled off by the first removing means 40 and the protective paper attached to the second removing means 60 to protect the protective paper from the optical sheet 1 well. In order to be peeled off as shown in Figure 1 may be further provided with a blowing means 80, the blowing means 80 comprises an air blower (air blower).

As described above, an electrostatic removing unit (not shown) may be further provided to remove the static electricity on the outer surface of the optical sheet 1 from which the protective paper is peeled off by the second removing unit 60. The electrostatic removing unit may include an ionizer. ) Is effective.

In addition, the foreign sheet attached to the outer surface of the optical sheet 1 is peeled off by transferring the optical sheet 1 through which the protective paper is peeled off through the second removing means 60 by a predetermined distance by the transfer means 20. As shown in FIG. 1, the second cleaning means 70 may be further provided to remove the second cleaning means 70. The second cleaning means 70 may have an upper surface of the optical sheet 1 on which the protective paper is peeled off, as shown in FIG. A third roller 72 provided at each of the lower and lower surfaces to rotate in contact with the upper and lower surfaces of the optical sheet 1 to remove foreign substances attached to the optical sheet 1; A driving motor 74 coupled to the third roller 72 to drive the third roller 72, and on one side of the third roller 72, in contact with the third roller 72. The fourth roller 76 is provided to remove the foreign matter attached to the outer surface of the third roller 72 by rotating to.

In this case, the outer circumferential surface of the third roller 72 is made of rubber with high sticky property, so that foreign substances attached to the outer surface of the optical sheet 1 can be easily removed, and the fourth roller 76 The outer circumferential surface of the adhesive tape may be replaced with a new adhesive tape when the adhesive force is lost by rotating contact with the third roller 72 for a predetermined time.

On the other hand, the optical sheet protective paper removing method according to the present invention, the loading step (S1) as shown in FIG. Primary cleaning step (S2); Primary removal step (S3); And a secondary removal step (S4).

The stacking step (S1) is a step of loading in a predetermined conveying means in order to automatically transport the optical sheet is attached to the protective paper on the outer surface.

As a next step, as shown in Fig. 5, the first cleaning step (S2) is passed, wherein the first cleaning step (S2) passes the optical sheet loaded on the transfer means through a predetermined cleaning means to protect the optical sheet. Steps to remove the foreign matter attached to the outer surface.

At this time, before the first cleaning step (S2) may further include a static electricity removing step (S12) for removing the static electricity on the outer surface of the protective sheet of the optical sheet as shown in Figure 5, the cleaning means described above for the optical sheet Since the protective paper removing device has been described in detail, the description thereof will be omitted.

As a next step, as shown in Figure 5, the first removal step (S3) is passed, the first removal step (S3) is a predetermined distance by the transfer means for the optical sheet passed through the first cleaning step (S2) The protective sheet attached to the optical sheet is partially peeled off from the one end of the optical sheet by transferring and making one end of the optical sheet and the roller-shaped first removing means make contact with each other.

As a final step, as shown in FIG. 5, the second removal step S4 is performed, and the second removal step S4 removes the second protection sheet of one end of the optical sheet partially peeled off in the first removal step S3. Attaching to the means so that the protective sheet is peeled off from one end of the optical sheet to the other end when the optical sheet is conveyed by the conveying means.

In this case, the optical sheet that has undergone the second removing step (S4) may further undergo an electrostatic removing step (S42) for removing static electricity on the optical sheet, as shown in FIG. Pass through the second cleaning step (S44) for removing the foreign matter on the optical sheet may be further passed.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the technical field of the present invention without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

According to the optical sheet protective paper removing device and removal method of the present invention as described above, in order to prevent the optical sheet of the backlight unit used in the liquid crystal display device from being damaged, the protective paper laminated on the optical sheet to the first removing means Thereby, the protective paper is partially separated from the optical sheet, and then the protective paper can be easily removed from the optical sheet by the second removing means, thereby reducing the time required for assembly of the backlight unit, thereby improving productivity.

Claims (29)

frame; Transfer means provided on the frame and configured to automatically transfer the optical sheet by loading an optical sheet having a protective paper attached to an outer surface thereof; First cleaning means for removing foreign matter attached to an outer surface of the protective sheet of the optical sheet loaded on the conveying means; By transferring the optical sheet passing through the first cleaning means a predetermined distance by the conveying means to make a rolling contact with one end of the optical sheet so that the protective paper attached to the optical sheet is partially peeled from one end of the optical sheet. First removal means for;  Stopper means for preventing the optical sheet from flowing on the conveying means when the first removing means and one end of the optical sheet make a rolling contact; And Attaching a protective sheet of one end of the optical sheet partially peeled off by the first removing means so that the protective sheet is peeled off from one end of the optical sheet in the direction of the other end when the optical sheet is conveyed by the conveying means; A second removal means Optical sheet protector removal device. The method of claim 1, And second cleaning means for removing the foreign matter adhered to the outer surface of the optical sheet from which the protective paper is peeled off by transferring the optical sheet from which the protective paper is peeled off through the second removing means by a predetermined distance. Optical sheet protector removal device. The method of claim 1, And a static electricity removing means for removing static electricity from the outer surface of the protective paper before the optical sheet having the protective paper attached to the outer surface passes through the first cleaning means. Optical sheet protector removal device. The method of claim 1, And a blowing means for blowing the protective paper from the optical sheet by blowing between the optical sheet partially peeled off by the first removing means and the protective paper attached to the second removing means. Optical sheet protector removal device. The method of claim 1, Further comprising a static electricity removing means for removing the static electricity on the outer surface of the optical sheet peeled off the protective paper by the second removing means Optical sheet protector removal device. The method of claim 1, The transfer means, Roller conveyor, A drive motor for driving the roller conveyor; Optical sheet protector removal device. The method of claim 1, The first cleaning means, First rollers provided on upper and lower surfaces of the optical sheet, respectively, to rotate in contact with the upper and lower surfaces of the optical sheet to remove foreign substances attached to the protective paper of the optical sheet; A driving motor coupled to the first roller to drive the first roller; Optical sheet protector removal device. The method of claim 7, wherein On one side of the first roller, A second roller is provided to rotate in contact with the first roller and to remove foreign substances attached to the outer surface of the first roller. Optical sheet protector removal device. The method of claim 7, wherein The outer peripheral surface of the first roller, Made of rubber with high stickiness Optical sheet protector removal device. The method of claim 8, The outer circumferential surface of the second roller, Made of adhesive tape Optical sheet protector removal device. The method of claim 2, The second cleaning means, A third roller provided on the upper and lower surfaces of the optical sheet from which the protective paper has been peeled off to rotate in contact with the upper and lower surfaces of the optical sheet to remove foreign substances attached to the optical sheet; A driving motor coupled to the third roller to drive the third roller; Optical sheet protector removal device. The method of claim 11, On one side of the third roller, The fourth roller for rotating the foreign matter attached to the outer surface of the third roller by rotating in contact with the third roller is provided Optical sheet protector removal device. The method of claim 11, The outer peripheral surface of the third roller, Made of rubber with high stickiness Optical sheet protector removal device. The method of claim 12, The outer peripheral surface of the fourth roller, Made of adhesive tape Optical sheet protector removal device. The method of claim 1, The first removing means, A cylindrical rotor in cloud contact with one end of the optical sheet; A motor coupled to the rotating body to rotate the rotating body; And And a cylinder for moving the rotating body up and down by pressure. Optical sheet protector removal device. The method of claim 15, The rotating body, As a rubber roller, Ribs are formed on the outer circumferential surface at predetermined intervals along the circumferential direction Optical sheet protector removal device. The method of claim 15, The cylinder, Pneumatic cylinder Optical sheet protector removal device. The method of claim 1, The stopper means, Support for supporting the other end of the optical sheet, A cylinder for moving the support up and down by pressure; Optical sheet protector removal device. The method of claim 18, The cylinder is a pneumatic cylinder Optical sheet protector removal device. The method of claim 1, The second removing means, A body having an adsorption mechanism provided on a lower surface thereof to be connected to an external vacuum device so as to maintain and release a vacuum state and to adsorb the optical sheet; Is provided integrally with the body on one side of the body includes an attachment mechanism for attaching the protective paper Optical sheet protector removal device. The method of claim 20, The attachment mechanism, Made of adhesive tape Optical sheet protector removal device. The method of claim 20, The attachment mechanism, The vacuum suction pad is connected to the vacuum equipment Optical sheet protector removal device. The method of claim 20, The adsorption mechanism, The vacuum suction pad is connected to the vacuum equipment Optical sheet protector removal device. The method according to claim 3 or 5, The static elimination means, Consisting of an ionizer Optical sheet protector removal device. The method of claim 4, wherein The blowing means, With air blower Optical sheet protector removal device. A stacking step of stacking the optical sheet having a protective paper on the outer surface thereof in a predetermined transporting means for automatically transporting the optical sheet; A first cleaning step for removing foreign matter adhering to the outer surface of the optical sheet protective paper by passing the optical sheet loaded on the conveying means through a predetermined cleaning means; The protective sheet attached to the optical sheet is transferred to the optical sheet by transferring the optical sheet that has undergone the first cleaning step by a predetermined distance by the conveying means so that one end portion of the optical sheet and the roller-shaped first removing means make a rolling contact. A primary removal step for removing part of one end of the; And Attaching the protective paper of one end of the optical sheet partially peeled off in the first removing step to the second removing means so that the protective paper is peeled off from one end of the optical sheet in the direction of the other end when the optical sheet is transferred by the transfer means. Including a second removal step How to remove optical sheet protective paper. The method of claim 26, 2, which removes the foreign matter adhered to the outer surface of the optical sheet by transferring the optical sheet peeled off the protective paper in the secondary removal step by a predetermined distance by the transfer means, passing the optical sheet peeled off the protective paper through a predetermined cleaning means. Further comprising a car washing step How to remove optical sheet protective paper. The method of claim 26, It further comprises a static electricity removing step for removing the static electricity on the outer surface of the protective sheet of the optical sheet before the first cleaning step. How to remove optical sheet protective paper. The method of claim 26, The method may further include a static electricity removing step for removing static electricity of the optical sheet which has undergone the second removal step. How to remove optical sheet protective paper.

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