KR101579834B1 - Cutting method of sheet for backlight - Google Patents

Cutting method of sheet for backlight Download PDF

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Publication number
KR101579834B1
KR101579834B1 KR1020150098277A KR20150098277A KR101579834B1 KR 101579834 B1 KR101579834 B1 KR 101579834B1 KR 1020150098277 A KR1020150098277 A KR 1020150098277A KR 20150098277 A KR20150098277 A KR 20150098277A KR 101579834 B1 KR101579834 B1 KR 101579834B1
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South Korea
Prior art keywords
double
sided tape
backlight sheet
backlight
sheet
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KR1020150098277A
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Korean (ko)
Inventor
정학섭
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(주)세광하이테크
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Publication of KR101579834B1 publication Critical patent/KR101579834B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The present invention relates to a method for processing a backlight sheet in which a double-sided tape is coupled on the backlight sheet. The method of the present invention comprises: a first coupling step of coupling a double-sided tape on one surface of the backlight sheet in a first direction; a second coupling step of coupling the double-sided tape on one surface of the backlight sheet in a second direction which is perpendicular to the first direction; an outer region punching step of punching step a boundary area of the backlight sheet from the double-sided tape which is coupled in first and second directions; and an outer region removal step of removing an outer region of the boundary area of the punched double-sided tape. Accordingly, the present invention couples the double-sided tape on one surface of the backlight sheet in the first and second directions, and extracts and removes the same, thereby reducing the amount of consumption of the double-sided tape and also reducing processing costs of the backlight sheet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a backlight sheet,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of processing a backlight sheet, and more particularly, to a method of processing a backlight sheet that joins a double-sided tape to a backlight sheet.

2. Description of the Related Art [0002] In recent years, a display using liquid crystal has been used as a display device such as a personal computer monitor, a television, or a mobile phone. Since these liquid crystal displays are not luminous bodies themselves, they can be displayed by irradiating light from the back side using a backlight.

In general, a liquid crystal display (LCD) is a device for displaying an image by injecting liquid crystal between two glass plates and applying power to the upper and lower glass plate electrodes to change the arrangement of liquid crystal molecules in each pixel. , And a backlight unit.

Unlike a cathode ray tube (CRT), a plasma display panel (PDP) or the like, a display using a liquid crystal display device is not usable in a place where there is no light because the display itself is non-luminous.

In order to compensate for these drawbacks, a backlight unit which is uniformly irradiated on the information display surface is mounted for the purpose of enabling use in a dark place. In particular, a backlight unit of a liquid crystal display device has been used as a direct-type backlight unit in which a light source can be arranged downward to emit light directly as the liquid crystal display becomes larger.

Various backlight sheets are used for the backlight unit of the liquid crystal display device in order to prevent irregular reflection on the front edge of the liquid crystal display device and improve the brightness of the liquid crystal display device by attaching such backlight unit to the liquid crystal panel, A double-sided tape is used in combination.

Hereinafter, with reference to the drawings, a conventional method of processing a backlight sheet for bonding a double-sided tape to a backlight sheet will be described in detail.

Fig. 11 is a structural view showing a lapping step of a conventional method for processing a backlight sheet, Fig. 12 is a structural view showing a step of punching the inside of a conventional method for processing a backlight sheet, Fig. 14 is a configuration diagram showing a step of external cutting out of a conventional method for processing a backlight sheet, and Fig. 15 is a view showing a step of removing the outline of a conventional method for processing a backlight sheet And Fig. 16 is a configuration diagram showing the completion step of a conventional method for processing a backlight sheet.

As shown in FIGS. 11 to 16, the conventional method for processing a backlight sheet includes a lapping step, an inner pouring step, an inner pouring step, an outer pouring step, and an outer pouring step.

In the lapping step, the double-sided tape 120 is joined to the entire one surface of the backlight sheet 110, and in the inside tapping stage, the boundary portion 121 of the inside- Is punctured by the fourth perforation line C4, and the inside edge portion 122 is removed in the inside edge removing step.

At the outline punching step, the boundary portion for allowing the corresponding portion of one backlight sheet 110 to remain at the outer peripheral portion 121 of the double-sided tape 120 is punctured by the fifth perforation line C5, So that the processing of the backlight sheet is completed.

However, the conventional method of processing a backlight sheet has a problem in that the consumption amount of the double-sided tape 120 is increased because the inside area 122 of a large area is punched out in the double-sided tape 120, There is a problem that the processing cost of the backlight sheet is increased because the price is high.

Korean Patent No. 10-0464566 (January 03, 2005)

It is an object of the present invention to provide a method of processing a backlight sheet capable of reducing the consumption amount of a double-sided tape and reducing the processing cost of a backlight sheet .

It is still another object of the present invention to provide a method of processing a backlight sheet capable of minimizing a bonding area of a double-sided tape in a backlight sheet.

It is still another object of the present invention to provide a method of processing a backlight sheet capable of collectively advancing and deflecting a double-sided tape in a first direction on one surface of a backlight sheet.

Another object of the present invention is to provide a method for processing a backlight sheet which can reduce the consumption amount of the double-sided tape and minimize the area of bonding between the backlight sheet and the double-sided tape to minimize the removed area.

Further, the present invention is characterized in that a first direction double-sided tape and a second direction double-sided tape are respectively bonded to three sides or four sides of four sides of a square backlight sheet, Another object of the present invention is to provide a method of processing a backlight sheet which can be arranged in a "C" shape.

It is still another object of the present invention to provide a method for processing a backlight sheet which is capable of laminating a double-sided tape on one surface of a backlight sheet in a second direction,

It is still another object of the present invention to provide a method of processing a backlight sheet capable of maintaining a lint position of a second direction double-sided tape at a constant level.

It is still another object of the present invention to provide a method of processing a backlight sheet capable of variously changing the punching position of the double-sided tape according to the installation position of the backlight sheet and the structure of the backlight.

It is still another object of the present invention to provide a method of processing a backlight sheet capable of varying the joining length of the double-sided tape depending on the installation position of the backlight sheet and the structure of the backlight.

Another object of the present invention is to provide a method of processing a backlight sheet capable of improving the processing speed and processing efficiency of a backlight sheet by continuously performing a first combining step and a second combining step .

According to another aspect of the present invention, there is provided a method of processing a backlight sheet for joining a double-sided tape to a backlight sheet, comprising the steps of: ); A second joining step (S20) of joining the double-sided tape in a second direction perpendicular to the first direction on one surface of the backlight sheet; (S30) an outer edge punching step of tapping a boundary portion of the backlight sheet in the double-sided tape joined in the first direction and the second direction; And removing an outer edge of a boundary portion of the paired double-sided tape (S40).

The first combining step (S10) of the present invention is characterized in that the double-sided tapes are bonded to one surface of the backlight sheet at equal intervals and joined in the first direction.

The first joining step (S10) of the present invention comprises: a first joining step of joining a double-faced tape at equal intervals on one side of a rectangular backlight sheet; A first punching step of punching the outer boundary of the lapped double-sided tape; And a first removing step of removing an outer edge of a boundary portion of the punched double-sided tape.

The double-sided tape of the present invention is characterized in that it is formed in a bar shape before the first joining step (S10).

The second joining step (S20) of the present invention is characterized in that a double-sided tape is longitudinally joined to at least a part of both ends along a second direction perpendicular to the first direction on one surface of the backlight sheet.

The second joining step (S20) of the present invention comprises: a second joining step of joining a double-sided tape on at least a part of both ends along a second direction on one surface of a rectangular backlight sheet; A second pulling step of pulling the inward boundary portion of the lapped double-sided tape; And a second removing step of removing an inside edge of a boundary portion of the punched double-sided tape.

The second jointing step of the present invention is characterized in that the double-sided tapes are joined together along the longitudinal direction sequentially in order from above on both ends along the second direction.

The second punching step of the present invention is characterized in that the double-sided tape is formed so that the first direction double-sided tape and the second direction double-sided tape are connected to each other or separated from each other. The second punching step of the present invention is characterized in that a plurality of double-sided tapes laminated in the longitudinal direction are separately arranged in the longitudinal direction.

The punching speed of the first combining step (S10) of the present invention is maintained to be equal to the punching speed of the second combining step (S20).

As described above, according to the present invention, the double-sided tape is joined to one surface of the backlight sheet in the first direction and the second direction and punched and removed to reduce the consumption amount of the double-sided tape and reduce the processing cost of the backlight sheet Provides a possible effect.

Further, the double-sided tapes are spaced apart from each other on one surface of the backlight sheet in the first direction to provide the effect of minimizing the bonding area of the double-sided tape in the backlight sheet.

Also, by including the lapping step, the punching step and the removing step when the first direction double-sided tape is engaged, the double-sided tape can be lapped on one surface of the backlight sheet in the first direction, punched out, and removed.

Further, by forming the double-sided tape in a bar shape in advance before the first bonding step, the consumed amount of the double-sided tape is reduced, and at the same time, the bonding area between the backlight-use sheet and the double-sided tape is minimized, .

In addition, in the second coupling step, the double-sided tape is longitudinally joined to at least a part of both ends along the second direction on one surface of the backlight sheet so that three of the four sides of the upper, And the first direction double-sided tape and the second direction double-sided tape are bonded to the four sides, respectively, so that the double-sided tape can be arranged in a square shape or in a substantially "C" shape.

Further, the joining step, the punching step, and the removing step when joining the second direction double-sided tapes together provide an effect that the double-sided tapes can be joined to one surface of the backlight sheet in the second direction and punched out and removed.

In addition, when the second direction double-sided tapes are joined together, the double-sided tapes are joined together along the longitudinal direction sequentially on the portions on both ends along the second direction along the second direction, thereby providing an effect that the joint position of the second direction double- .

In the second punching step, the double-sided tape is punched so that the first direction double-sided tape and the second direction double-sided tape are connected to each other or separated from each other, so that the punching position of the double-sided tape varies depending on the installation position of the backlight sheet and the structure of the backlight And the like.

In the second punching step, the lengths of the double-sided tapes laminated in the longitudinal direction of the double-sided tape can be varied in various ways depending on the installation position of the backlight sheet and the structure of the backlight Effect.

Further, by maintaining the punching speed of the first coupling step to be equal to the punching speed of the second coupling step, the first coupling step and the second coupling step are continuously performed to improve the processing speed of the backlight sheet and the working efficiency And provides an effect that can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing a first laminating step of a method of processing a backlight sheet according to an embodiment of the present invention; Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of processing a backlight sheet.
3 is a configuration diagram showing a first removing step of a method of processing a backlight sheet according to an embodiment of the present invention.
4 is a configuration diagram showing a second laminating step of a method of processing a backlight sheet according to an embodiment of the present invention;
5 is a configuration diagram showing a second punching step of a method of processing a backlight sheet according to an embodiment of the present invention.
6 is a configuration diagram showing a second removing step of a method of processing a backlight sheet according to an embodiment of the present invention.
Fig. 7 is a configuration diagram showing an outer punching step of a method of processing a backlight sheet according to an embodiment of the present invention; Fig.
8 is a configuration diagram showing a step of removing the outline of the method for processing a backlight sheet according to an embodiment of the present invention.
9 is a configuration diagram showing a completion step of a method of processing a backlight sheet according to an embodiment of the present invention.
10 is a flowchart showing a method of processing a backlight sheet according to an embodiment of the present invention.
11 is a schematic view showing a lapping step of a conventional method for processing a backlight sheet.
Fig. 12 is a configuration diagram showing a step of punching the inside of the conventional backlight sheet processing method. Fig.
Fig. 13 is a configuration diagram showing a step of removing an inner edge of a conventional method for processing a backlight sheet. Fig.
Fig. 14 is a configuration diagram showing a step of external cutting out a conventional method for processing a backlight sheet. Fig.
Fig. 15 is a block diagram showing the outline removal step of the conventional backlight sheet processing method. Fig.
Fig. 16 is a configuration diagram showing a completion step of a conventional method for processing a backlight sheet. Fig.

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

Fig. 1 is a configuration diagram showing a first laminating step of a method for processing a backlight sheet according to an embodiment of the present invention, Fig. 2 is a view showing a first punching step of a method for processing a backlight sheet according to an embodiment of the present invention Fig. 3 is a configuration diagram showing a first removing step of a method for processing a backlight sheet according to an embodiment of the present invention, Fig. 4 is a view showing a process of processing a backlight sheet according to an embodiment of the present invention 5 is a configuration diagram showing a second punching step of a method of processing a backlight sheet according to an embodiment of the present invention, and Fig. 6 is a view showing a step of cutting a backlight sheet according to an embodiment of the present invention Fig. 7 is a configuration diagram showing a step of punching out the outer surface of a method for processing a backlight sheet according to an embodiment of the present invention, and Fig. 8 is a view Fig. 9 is a configuration diagram showing the completion step of the method for processing a backlight sheet according to an embodiment of the present invention, and Fig. 10 Is a flowchart showing a method of processing a backlight sheet according to an embodiment of the present invention.

10, the method for processing a backlight sheet according to the present embodiment includes a first combining step S10, a second combining step S20, an outer punching step S30, and an outline removing step S40 And a double-sided tape is joined to the backlight sheet.

The first bonding step S10 is a step of bonding the double-sided tape 20 to the one surface of the backlight sheet 10 in the first direction as shown in Figs. In this first coupling step S10, the double-faced tape 20 is spaced at equal intervals on one side of the backlight sheet 10 and joined in the longitudinal direction in the first direction, and the first joining step S11, 1 stitching step S12 and a first removing step S13.

The first laminating step S11 is a step of laminating the double-faced tape 20 on one side of the square backlit sheet 10 at equal intervals and the step of laminating the double-faced tape 20 on the backlit sheet 10 running in one direction Directional double-faced tape 21 are spaced apart at equal intervals along the running direction.

In the first laminating step S11, the first direction double-faced tape 21 is adhered to the traveling backlit sheet 10 in the longitudinal direction of the first direction perpendicular to the traveling direction, It becomes lined up.

The first punching step S12 is performed so as to form the first perforation line C1 along the outer boundary portion of the first direction double-faced tape 21 joined to the backlight sheet 10 in the first punching step S11 It is a step to be released.

In this first punching step S12, the first perforation line C1 is formed at a predetermined speed around the perimeter of the outer boundary portion of the first direction double-sided tape 21 by the extruder.

The first removing step S13 is a step of removing the outer peripheral portion 21b of the boundary portion of the first direction double-sided tape 21 punched along the first perforation line C1 in the first pouring step S12 to be.

Therefore, in the first removing step S13, the outer portion 21b of the boundary portion of the first direction double-faced tape 21 is removed so that the inner portion 21a of the boundary portion of the first direction double-faced tape 21 remains do.

The double-sided tape 20 in the first coupling step S10 is preferably composed of a first direction double-sided tape 21 cut in a bar shape before the first coupling step S10.

The second joining step S20 is a step of joining the double-sided adhesive tape 20 to one surface of the backlight sheet 10 in a second direction perpendicular to the first direction as shown in Figs.

In this second coupling step S20, the second directional double-faced tape 22 is longitudinally joined to at least a part of both ends along a second direction perpendicular to the first direction on one surface of the backlight sheet 10 , And includes a second jointing step (S21), a second punching step (S22), and a second removing step (S23).

The second laminating step S21 is a step of laminating a second direction double-faced tape 22 on at least a part of both ends along a second direction on one side of the rectangular backlight sheet 10, Side tape 22 in the longitudinal direction along the running direction so as to be equal to the running direction of the backlight sheet 10 traveling in the running direction.

In the second laminating step S21, the second direction double-faced tape 22 is linearly joined to the second direction two-sided tapes 22, sequentially on the both ends in a second direction same as the traveling direction of the backlight sheet 10. [

The second punching step S22 is performed so as to form the second perforation line C2 along the inward boundary portion of the second direction double-faced tape 22 joined to the backlight sheet 10 in the second punching step S21 It is a step to be released.

In this second punching step S22, the second perforation line C2 is formed at a predetermined punching speed along the inward boundary portion of the second direction double-faced tape 22 by the extruder. In this case, the punching speed of the second punching step S22 is preferably kept equal to the punching speed of the first punching step S12.

This is because when the pulling speed of the first coupling step S10 is kept equal to the second coupling step S20, the first coupling step S10 and the second coupling step S20 are continuously performed, The running performance of the backlight sheet 10 can be improved and the processing efficiency of the backlight sheet 10 can be improved.

In the second punching step S22, the second directional double-faced tape 22 may be pulled so that the first direction double-faced tape 21 and the second direction double-faced tape 22 are connected to each other or separated from each other. to be.

In the second punching step S22, the second direction double-faced tape 22 laminated in the longitudinal direction in the same second direction as the running direction of the backlight sheet 10 may be separately arranged in the longitudinal direction Of course.

The second removing step S23 is a step of removing the inward portion 22b of the boundary portion of the second direction double-faced tape 22 punched along the second perforation line C2 in the second punching step S22 to be.

Therefore, in the second removing step S23, the inward portion 22b of the boundary portion of the second direction double-faced tape 22 is removed so that the outward portion 22a of the boundary portion of the second direction double- do.

The double-faced tape 20 in the second joining step S20 is preferably composed of a second direction double-faced tape 22 wound on a roll in a straight line before the second joining step S20.

It should be noted that the second joining step S20 may be continued after the first joining step S10, but may proceed before the second joining step S20.

As shown in Fig. 7, the outer punching step S30 is a punching step of punching the boundary portion of the backlight sheet 10 in the double-sided tape 20 joined in the first direction and the second direction, A third perforation line C3 is formed along a boundary portion corresponding to one surface of one backlight sheet 10 in the first direction double-faced tape 21 and the second direction double-faced tape 22 bonded to one surface of the backlight sheet 10 I will be fired.

Specifically, in the outer squeeze step S30, the inner peripheral portion 21a of the boundary portion of the first direction double-sided tape 21 remaining remaining on one surface of the backlight sheet 10 in the first coupling step S10 , A third perforation line C3 is formed on the outermost portion 22a of the boundary portion of the second directional double-faced tape 22 remaining on the one surface of the backlight sheet 10 in the second engaging step S20 So as to be hit at a predetermined punching speed.

The punching speed of the outer punching step S30 is preferably kept equal to the punching speed of the first punching step S12 and the punching speed of the second punching step S22. This is because if the pulling speed of the outer pulling step S30 is kept equal to the pulling speed of the first engaging step S10 and the pulling speed of the second engaging step S20, It is possible to improve the running performance of the backlight sheet 10 and improve the processing efficiency of the backlight sheet 10 by continuously performing the combining step S20 and the outer punching step S30.

As shown in FIGS. 8 and 9, the outline removing step S40 is a step of removing the outer edge of the boundary portion of the double-faced tape 20 punched out in the outline punching step S30, Of the third perforated line (C3) punched out at the inner edge portion (21a) of the boundary portion of the first direction double-faced tape (21) remaining joined to the outward portion (22a) The outer portions 21c and 22c are removed.

Therefore, according to the processing method of the backlight sheet of the present embodiment, the boundary portions corresponding to one surface of one sheet of the rectangular backlight sheet 10, that is, the four sides of four sides of the top, bottom, left, Side tape 21 and the second direction double-sided tape 22 formed in a straight line of the double-sided tape 20 are arranged in a substantially rectangular shape or in a substantially "C" shape.

INDUSTRIAL APPLICABILITY As described above, according to the present invention, the double-sided tape is joined and removed in the first direction and the second direction on one surface of the backlight sheet to reduce the consumption amount of the double-sided tape and reduce the processing cost of the backlight sheet Provides a possible effect.

Further, the double-sided tapes are spaced apart from each other on one surface of the backlight sheet in the first direction to provide the effect of minimizing the bonding area of the double-sided tape in the backlight sheet.

Also, by including the lapping step, the punching step and the removing step when the first direction double-sided tape is engaged, the double-sided tape can be lapped on one surface of the backlight sheet in the first direction, punched out, and removed.

Further, by forming the double-sided tape in a bar shape in advance before the first bonding step, the consumed amount of the double-sided tape is reduced, and at the same time, the bonding area between the backlight-use sheet and the double-sided tape is minimized, .

In addition, in the second coupling step, the double-sided tape is longitudinally joined to at least a part of both ends along the second direction on one surface of the backlight sheet so that three of the four sides of the upper, And the first direction double-sided tape and the second direction double-sided tape are bonded to the four sides, respectively, so that the double-sided tape can be arranged in a square shape or in a substantially "C" shape.

Further, the joining step, the punching step, and the removing step when joining the second direction double-sided tapes together provide an effect that the double-sided tapes can be joined to one surface of the backlight sheet in the second direction and punched out and removed.

In addition, when the second direction double-sided tapes are joined together, the double-sided tapes are joined together along the longitudinal direction sequentially on the portions on both ends along the second direction along the second direction, thereby providing an effect that the joint position of the second direction double- .

In the second punching step, the double-sided tape is punched so that the first direction double-sided tape and the second direction double-sided tape are connected to each other or separated from each other, so that the punching position of the double-sided tape varies depending on the installation position of the backlight sheet and the structure of the backlight And the like.

In the second punching step, the lengths of the double-sided tapes laminated in the longitudinal direction of the double-sided tape can be varied in various ways depending on the installation position of the backlight sheet and the structure of the backlight Effect.

Further, by maintaining the punching speed of the first coupling step to be equal to the punching speed of the second coupling step, the first coupling step and the second coupling step are continuously performed to improve the processing speed of the backlight sheet and the working efficiency And provides an effect that can be achieved.

The present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the above embodiments are merely illustrative in all respects and should not be construed as limiting.

10: Sheet for backlight
20: Double-sided tape

Claims (10)

A method of processing a backlight sheet for joining a double-sided tape to a backlight sheet,
A first joining step (S10) of joining a first direction double-sided tape in a first direction to one surface of a backlight sheet;
A second joining step (S20) of joining a second direction double-faced tape in a second direction perpendicular to the first direction on one surface of the backlight sheet;
(S30) a touching step of touching a boundary portion between the first directional double-faced tape combined in the first direction and the backlit sheet in the second directional double-faced tape combined in the second direction; And
(S40) of removing a boundary between the first direction double-faced tape and the second direction double-faced tape punched out in the outer pouring step (S30)
Characterized in that the first combining step (S10) is such that the first direction double-sided tapes are spaced at equal intervals in the second direction on one surface of the backlight sheet traveling in the second direction and are coupled in the first direction Method of processing sheet. delete The method according to claim 1,
The first combining step (S10)
A first joining step of joining a first direction double-sided tape to one side of a rectangular backlight sheet at equal intervals;
A first pulling step of pulling out the outer boundary of the joined first direction double-sided tape; And
And a first removing step of removing an outer edge of a boundary portion of the punched first direction double-sided tape. The method according to claim 1,
Wherein the first direction double-sided tape is cut in a bar shape before the first joining step (S10). The method according to claim 1,
Wherein the second joining step (S20) joins longitudinally a second direction double-sided tape on at least a part of both ends along a second direction perpendicular to the first direction on one surface of the backlight sheet Method of processing sheet. 6. The method of claim 5,
The second combining step (S20)
A second joining step of joining a second direction double-sided tape onto at least a part of both ends along a second direction on one side of the rectangular backlight sheet;
A second pulling step of pulling out the inward boundary portion of the lapped second direction double-sided tape; And
And a second removing step of removing an inside edge of the boundary portion of the second directionally-facing double-sided tape. The method according to claim 6,
Wherein the second joining step joins the second direction double-faced tape along the longitudinal direction sequentially along the second direction in sequence on the both end portions. The method according to claim 6,
Wherein the second pulling step is a step of pulling the first direction double-faced tape and the second direction double-faced tape so that the first direction double-faced tape and the second direction double-faced tape are connected to each other or separated from each other, . The method according to claim 6,
Wherein the second punching step is performed such that a plurality of second directionally-facing double-sided tapes laminated in the longitudinal direction are separated from each other in the longitudinal direction. The method according to claim 1,
Wherein the punching speed of the first combining step (S10) is kept equal to the punching speed of the second combining step (S20).
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101650943B1 (en) * 2016-02-25 2016-09-06 최유해 Manufacturing apparatus and method thereof for mobile phone window

Citations (5)

* Cited by examiner, † Cited by third party
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