CN114852448A

CN114852448A - Protective film peeling device and peeling method using same

Info

Publication number: CN114852448A
Application number: CN202210084343.5A
Authority: CN
Inventors: 李哉宪; 李东柱
Original assignee: Meere Co Inc
Current assignee: Meere Co Inc
Priority date: 2021-02-04
Filing date: 2022-01-21
Publication date: 2022-08-05
Anticipated expiration: 2042-01-21
Also published as: CN114852448B; KR20220112426A; KR102476313B1

Abstract

An embodiment of the present invention provides a protective film peeling apparatus for removing a protective film attached to a panel, and a peeling method using the same, the protective film peeling apparatus including: a contact portion which receives power, can move in a preset direction, and can contact the protective film; the contact part comprises a metal wire part, and the metal wire part moves in the area between the protective film and the panel to peel the protective film from the panel.

Description

Protective film peeling device and peeling method using same

Technical Field

Embodiments of the present invention relate to a protective film peeling apparatus and a peeling method using the same.

Background

Recently, with the development of various electronic devices such as Mobile phones (Mobile phones), PDAs (personal digital assistants), computers, large TVs, etc., the demand for flat display devices that can be applied thereto is gradually increasing. Currently, the flat panel Display devices include LCD (Liquid Crystal Display), OLED (Organic Light Emitting diode), and the like.

In order to protect the panel in the manufacturing process of such a flat display device, a protective film is attached to the upper portion of the panel, and after the panel is cut into a panel size in a mother substrate state, the protective film needs to be removed from a region to which a grinding process is applied in order to apply the protective film to the grinding process.

In the past, in order to remove the protective film in the region outside the protective region, a separate adhesive tape with higher adhesive force than the protective film is used for stripping, but when the contact area of the region outside the protective region is relatively small, the adhesive force between the adhesive tape and the protective film is weak or the adhesive tape and the protective film fall off, and the protective film cannot be stripped normally.

In addition, there is a problem that the protective film is not normally peeled off and thus the protective film is lifted, and the polishing liquid penetrates into the protective region, so that the protective film burns, and thus the panel is cracked or cracked.

Disclosure of Invention

Technical subject

Some embodiments of the present invention provide a protective film peeling apparatus and a peeling method using the same, which can precisely remove a protective film in a minute area by cutting a predetermined area of the protective film attached to a display panel using a laser and peeling the protective film of an unnecessary area cut by a wire.

Technical scheme

According to an embodiment of the present invention, there is provided a protective film peeling apparatus that removes a protective film attached to a panel, including: a contact portion which receives power, is movable in a predetermined direction, and is capable of contacting the protective film; wherein the contact portion includes a wire portion that moves in an area between the protective film and the panel to peel the protective film from the panel.

According to an embodiment of the present invention, there is provided a protective film peeling method including: removing a predetermined region of the protective film attached to the panel; a step of moving the contact portion to the panel and peeling the protective film from the panel; and a step of removing the protective film peeled from the panel; wherein the contact portion includes a wire portion that moves in an area between the protective film and the panel to peel the protective film from the panel.

Other aspects, features, and advantages will be apparent from the following drawings, claims, and detailed description of the invention.

Effects of the invention

According to the protective film peeling apparatus and the protective film peeling method of the embodiment of the invention, the wire portion moves to the area between the protective film and the panel, and the protective film in the non-protective area located at the periphery of the protective area can be peeled and removed from the panel.

Further, since the protective film is peeled from the panel while the wire portion is moved, instead of the adhesion method, the protective film can be peeled and removed from the panel precisely in the partially formed unprotected area, as compared with the conventional method in which the protective film is peeled by an adhesive tape or the like coated with an adhesive substance.

Of course, the scope of the present invention is not limited by this effect.

Drawings

Fig. 1 is a plan view illustrating a panel to which a protective film is attached according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view taken along line I-I of fig. 1.

Fig. 3a to 3c are views illustrating a state in which the contact portion moves and peels the protective film from the panel according to an embodiment of the present invention.

Fig. 4a to 4d are views showing a state where the protective film is peeled from the panel, cut with reference to the line I-I of fig. 1.

Fig. 5 is a plan view showing a state where the panel position is adjusted.

Fig. 6 is a flowchart illustrating a protective film peeling method according to an embodiment of the present invention.

Fig. 7 is a flowchart showing an embodiment of the protective film peeling method shown in fig. 6.

Reference numerals

1: protective film stripping device

L: light source

10: panel board

20: protective film

PA: protection area

NPA: unprotected area

CA: removing regions

100: contact part

110: wire part

130: driving part

130 a: first driving body

130 b: second driving body

200: removal part

300: sensor unit

310: first sensor

330: second sensor

400: push part

500: clamping part

510: clamping body

530: membrane sensing part

Detailed Description

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. The effects, features and methods of achieving the same of the present invention will be apparent with reference to the embodiments described in detail later together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and can be realized in various forms.

The embodiments of the present invention will be described in detail with reference to the drawings, and the same or corresponding components will be denoted by the same reference numerals and the repetitive description thereof will be omitted.

In the following embodiments, the terms first, second, etc. are not limitative, but are used for the purpose of distinguishing one constituent element from other constituent elements.

In the following embodiments, expressions in the singular number include expressions in the plural number as long as a difference is not explicitly expressed in the context.

In the following embodiments, the terms including or having, etc., mean that there are features or constituent elements described in the specification, and the possibility of adding one or more other features or constituent elements is not excluded in advance.

In the drawings, the size of the constituent elements may be exaggerated or reduced for convenience of description. For example, the dimensions and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to the illustrated contents.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on a rectangular coordinate system, but may be interpreted in a broad sense including the same. For example, the x-axis, the y-axis, and the z-axis may intersect perpendicularly with each other, or may refer to different directions that do not intersect perpendicularly with each other.

In the case where certain embodiments may be implemented differently, the particular sequence of steps may also be performed in a different order than that described. For example, two steps described in succession may be executed substantially simultaneously, or may be executed in the order reverse to the order described.

Fig. 1 is a plan view showing a panel to which a protective film is attached according to an embodiment of the present invention, fig. 2 is a sectional view taken on the line I-I of fig. 1, fig. 3a to 3c are views showing a state where a contact portion moves and the protective film is peeled from the panel according to an embodiment of the present invention, fig. 4a to 4d are views taken on the line I-I of fig. 1 to show a state where the protective film is peeled from the panel, and fig. 5 is a plan view showing a state where the position of the panel is adjusted.

Referring to fig. 2a to 5, the protective film peeling apparatus 1 according to an embodiment of the present invention may include a contact portion 100, a removal portion 200, a sensor portion 300, a pushing portion 400, and a clamping portion 500.

Referring to fig. 3a to 3c and 4a to 4d, the contact portion 100 according to an embodiment of the present invention is powered and movable in a predetermined direction, and can contact the protective film 20 attached to the panel 10.

Referring to fig. 1, the protective film 20 attached to the panel 10 may be divided into a protective area PA and a non-protective area NPA.

The non-protection region NPA is a portion where a grinding process is performed on an edge (edge) portion of the panel 10 after the panel 10 cutting process, and if the protective film 20 attached to the non-protection region NPA is not removed, the protective film 20 is lifted up, and the polishing liquid penetrates into the protection region PA, so that a burning phenomenon occurs due to the film, and there is a problem that the panel 10 may be cracked or cracked (crack).

In addition, if the protective film 20 attached to the non-protective region NPA is not removed, there is a problem that the pattern layer of the panel 10 is pushed and a film line is formed at the edge portion of the panel 10 after polishing.

Referring to fig. 3a to 3c, the contact portion 100 according to an embodiment of the present invention may include a wire portion 110 and a driving portion 130. The wire part 110 can contact the protective film 20 attached to the panel 10, and the wire part 110 moves according to the movement of the contact part 100, thereby having an effect of peeling the protective film 20 attached or stuck to the panel 10 from the panel 10.

The wire part 110 of the present invention may be formed of a metal material, and may be formed of a material having a relatively greater rigidity than the protective film 20 attached to the panel 10, and an adhesive layer (not shown) formed on the panel 10 and the protective film 20.

Therefore, when the contact portion 100 receives power from the outside and moves, the protective film 20 can be peeled off from the panel 10 while passing through the adhesive layer formed between the protective film 20 and the panel 10.

Although not shown in the drawings, the contact part 100 may include an additional driving member, which may receive an electrical signal from a control part (not shown) and drive to move the contact part 100.

Specifically, the wire part 110 may pass through an adhesive layer formed between the protective film 20 and the panel 10 at a thickness of 50 μm to 100 μm, specifically, at a thickness of 75 μm, to remove the adhesion between the protective film 20 and the panel 10.

The contact portion 100 according to an embodiment of the present invention may receive power from the outside and move in three directions of the X-axis, the Y-axis, and the Z-axis. Specifically, the contact portion 100 may be moved in the Z-axis direction to adjust the position so as to be disposed opposite to the adhesive layer formed between the panel 10 and the protective film 20.

Referring to fig. 3a to 3c, the driving part 130 according to an embodiment of the present invention may be movable and connected to the wire part 110, and may adjust the tension of the wire part 110.

Referring to fig. 3a to 3c, the driving part 130 may include a first driving body 130a and a second driving body 130 b. The first driving body 130a is connected with the wire part 110, and if rotational power is generated from the first driving body 130a, the wire part 110 can be wound or unwound.

The tension of the wire part 110 may be adjusted by the rotational power generated by the first driving body 130 a.

Referring to fig. 3a, the first driving body 130a according to an embodiment of the present invention may be provided in plurality, and in particular, may be provided in a pair spaced apart from each other.

The wire parts 110 connected to the pair of first driving bodies 130a facing each other may increase or decrease the tension as the first driving bodies 130a generate the rotational power.

Referring to fig. 3a to 3c, the second driving body 130b according to an embodiment of the present invention is spaced apart from the first driving body 130a and may contact the wire part 110. The second driving body 130b according to an embodiment of the present invention may rotate, and may rotate in a clockwise direction or a counterclockwise direction with reference to the rotation center axis.

The second driving body 130b according to an embodiment of the present invention may provide a moving path of the wire part 110 while being in contact with the wire part 110. Specifically, the second driving body 130b may be disposed to be spaced apart from the first driving body 130a, and when the first driving bodies 130a are provided in a pair and disposed to be spaced apart from each other to face each other as shown in fig. 3a, the second driving body 130b is disposed between the pair of first driving bodies 130a, and a moving path of the wire part 110 may be stably provided.

Referring to fig. 3a to 3c, since the wire part 110 according to an embodiment of the present invention is disposed to cross the second driving body 130b, the wire part 110 can be wound or unwound by the rotational power of the first driving body 130a while adjusting the tension, and in this case, the second driving body 130b can maintain the state in which the wire part 110 is disposed to cross, which has an effect of more easily adjusting the tension of the wire part 110.

But not limited thereto, the second driving body 130b may receive power from the outside and rotate like the first driving body 130a according to an embodiment of the present invention, and may be connected to the wire part 110 and adjust the tension of the wire part 110.

Although not shown in the drawings, the driving part 130 according to an embodiment of the present invention may receive power from the outside and move in three directions along the X-axis, Y-axis, and Z-axis directions.

The driving part 130, specifically, the first and

second driving bodies

130a and 130b may be moved in consideration of the height, thickness, etc. of the panel 10 and the protective film 20 attached to the panel 10, and when the driving part 130 is moved, the wire part 110 connected to the driving part 130 may be moved together.

Referring to fig. 2b and 4a, the removing part 200 according to an embodiment of the present invention can remove a predetermined region of the protective film 20 attached on the panel 10. The removing unit 200 is disposed outside the panel 10, and may irradiate the protective film 20 attached to the panel 10 with the light source L to remove a predetermined region and form a removed region CA.

Referring to fig. 2b, the removing part 200 according to an embodiment of the present invention may irradiate the light source L to the boundary of the protection area PA and the non-protection area NPA on the protection film 20 attached on the panel 10 to remove the corresponding portion of the protection film 20, so that the removal area CA may be formed.

Although not shown in the drawings, the removing unit 200 can be moved by receiving power from the driving member, and can irradiate the light source L along a boundary line between the protective area PA and the non-protective area NPA on the protective film 20 disposed on the panel 10.

In the present invention, the removing unit 200 removes the predetermined region on the protective film 20 by irradiating the light source L, specifically, by irradiating laser light, in a non-contact manner with the protective film 20 attached to the panel 10, but the present invention is not limited thereto, and various modifications may be made such as directly contacting the protective film 20 in a contact manner and removing the predetermined region.

Referring to fig. 2b, the removing part 200 according to an embodiment of the present invention is provided in one, but not limited thereto, and may be provided in plural, and has an effect of simultaneously removing the predetermined region at plural positions of the protective film 20 attached to the panel 10.

Referring to fig. 2b, 3a to 3c, the removing part 200 according to an embodiment of the present invention removes a predetermined region on the protective film 20, having an effect that the wire part 110 can peel the protective film 20 from the panel 10 while passing through a predetermined height, specifically, a region of an adhesive layer formed between the protective film 20 and the panel 10, as the contact part 100 moves.

Referring to fig. 3a and 4a, the sensor part 300 according to an embodiment of the present invention is disposed at the outer side of the panel 10, and can sense the position of the contact part 100, and particularly, can sense the position of the wire part 110.

Referring to fig. 3a and 4a, a sensor part 300 according to an embodiment of the present invention may include a first sensor 310 and a second sensor 330.

Referring to fig. 3a, the first sensor 310 according to an embodiment of the present invention may sense the position of the wire part 110, and in particular, may sense the position of the wire part 110 with reference to a lamination direction (an up-down direction with reference to fig. 2 a) of the panel 10 and the protective film 20.

The control part may receive information about the position of the wire part 110 from the first sensor 310, may transmit an electrical signal to the contact part 100, and controls the driving of the contact part 100 to vary the height of the wire part 110 such that the wire part 110 is located at a height corresponding to an adhesive layer area formed between the panel 10 and the protective film 20.

Referring to fig. 3a and 4a, the second sensor 330 according to an embodiment of the present invention measures the displacement of the protective film 20 attached on the panel 10, and may measure the displacement of the protective film 20 in a contact or non-contact manner.

The second sensor 330 according to an embodiment of the present invention may be formed as an LVDT sensor (Linear Variable Differential Transformer).

The thickness of the protective film 20 attached on the panel 10 may be sensed by the second sensor 330.

The second sensor 330 transmits information related thereto to the control part through an electric signal, and the control part may adjust the position of the contact part 100, specifically, the wire part 110, using the information transmitted from the second sensor 330 and the information transmitted from the first sensor 310.

Referring to fig. 3a and 4a, the second sensor 330 according to an embodiment of the present invention may sense the position of the panel 10.

Referring to fig. 5, a portion shown in a dotted line is a reference position of the panel 10 to which the protective film 20 is attached, and a portion shown in a solid line is an actual position of the panel 10 sensed by the second sensor 330.

The reference point of the panel 10 to which the protective film 20 is attached may be set to a position where the contact portion 100 contacts, specifically, a position where the wire portion 110 contacts. Specifically, the angle P1 of the panel 10 may be set as a reference point.

According to the sensor part 300 of an embodiment of the present invention, particularly, the second sensor 330 may include a photographing part (not shown), may sense the position of the panel 10 to which the protective film 20 is attached in real time, and may sense the position of the corner P2 of the panel 10.

The second sensor 330 according to an embodiment of the present invention may transmit information about the position of the panel 10 to the control part through an electric signal. The control part may transmit information about the position of the panel 10 transmitted from the second sensor 330 to the contact part 100 through an electric signal.

The contact portion 100 may receive an electrical signal from the control portion and move so as to contact the angle P2 of the panel 10 at an actual position of the panel 10 disposed differently from the reference position.

Although not shown in the drawings, the protective film peeling apparatus 1 may include a driving base portion (not shown) for configuring the panel 10 to which the protective film 20 is attached, and the control portion receiving information on the position of the panel 10 from the second sensor 330 by an electric signal may transmit the electric signal to the driving base portion to adjust the position of the panel 10.

Referring to fig. 5, the control part may transmit power to the driving base part for configuring the panel 10 so as to move d1 in a first direction (a left-right direction with reference to fig. 5) and d2 in a second direction (an up-down direction with reference to fig. 5) such that the center of the panel 10 in an actual panel 10 position shown in a solid line coincides with the center of the panel 10 in a panel 10 reference position shown in a dotted line.

After the center of the actual panel 10 coincides with the center of the reference panel 10, an angle between a first axis formed in a first direction (a left-right direction with reference to fig. 5) and a second axis connected to an angle P2 from the center of the panel 10 is measured, and the control section transmits an electric signal to the driving base section and drives, thereby moving the position of the panel 10 to which the protective film 20 is attached to a reference position so as to coincide with an angle θ between the first axis in the reference panel 10 and a second axis connected to an angle P1 from the center of the panel 10.

Therefore, the contact portion 100 is not moved corresponding to the actual position of the various panels 10, but power is transmitted to the driving base portion to linearly and rotationally move the panels 10 to the reference position, so that the contact portion 100 can be more easily moved only within a certain range.

Referring to fig. 4b and 4c, the pushing portion 400 according to an embodiment of the present invention is disposed outside the panel 10, and may contact the protection film 20 attached to the panel 10, specifically, may contact the protection area PA, and may push the protection area PA of the protection film 20 to the panel 10 side.

Referring to fig. 4b and 4c, the push part 400 according to an embodiment of the present invention may contact above the protection area PA near the boundary of the protection area PA and the non-protection area NPA, i.e., near the removal area CA removed by the removal part 200.

Referring to fig. 4c, the push part 400 contacts the protective film 20, specifically, contacts the protective area PA and pushes the protective area PA to the panel 10 side, and thus, when the protective film 20 of the non-protective area NPA is removed, a phenomenon that the protective film 20 corresponding to the protective area PA is lifted up may be prevented.

Therefore, in the process of removing the protective film 20 corresponding to the non-protective area NPA while being sandwiched by the nip portion 500, which will be described later, from the panel 10, the pushing portion 400 pushes in the downward direction (with reference to fig. 4 c) in a state of contacting the protective film 20 corresponding to the protective area PA, and thus, the protective film 20 in the protective area PA can be prevented from being peeled off together while the protective film 20 in the non-protective area NPA is removed by the nip portion 500.

The push portion 400 according to an embodiment of the present invention may be formed in a hydraulic cylinder or a pneumatic cylinder manner. Although not shown in the drawings, the push part 400 may include a pressure sensor.

The pressure sensor may sense the pressure applied by the push part 400 to the protective film 20 attached to the panel 10 in real time, and may transmit pressure-related information to the control part through an electrical signal.

The control part may receive pressure-related information from the push part 400, specifically, from the pressure sensor and control driving of the push part 400 to apply pressure within a preset range.

Referring to fig. 4c, with the pushing part 400 according to an embodiment of the present invention, not only when the contact part 100 contacts and peels the protective film 20 of the non-protection area NPA from the panel 10, but also when the protective film 20 peeled from the panel 10 in the non-protection area NPA is sandwiched and peeled from the panel 10 as shown in fig. 4d, the pushing part 400 pushes the protective film 20 attached to the panel 10 in the protection area PA toward the panel 10 side direction (from the upper side toward the lower side direction with reference to fig. 4 d), and thus has an effect of quickly and accurately removing the protective film 20 peeled from the panel 10 in the non-protection area NPA without affecting the protective film 20 attached to the panel 10 in the protection area PA.

Referring to fig. 4d, the clamping portion 500 according to an embodiment of the present invention clamps the protection film 20 peeled from the panel 10, so that the protection film 20 can be detached from the panel 10. The clamping part 500 according to an embodiment of the present invention may include a clamping body 510, a film sensing part 530.

Referring to fig. 4d, the clamping body 510 according to an embodiment of the present invention may be moved in the direction of the X, Y, Z axis by receiving power from the outside, and may be disposed on the protective film 20 attached to the panel 10, specifically, on both sides of the protective film 20 peeled from the non-protection area NPA of the panel 10 by the contact portion 100.

The clamping body 510 according to an embodiment of the present invention may clamp the protective film 20 peeled from the panel 10 at both sides in a contact manner. The holding body 510 moves in a direction away from the panel 10 after holding the protective film 20, so that the protective film 20 peeled off from the panel 10 in the non-protection area NPA can be completely removed.

Referring to fig. 4d, the pair of holding bodies 510 is provided on both sides of the protection film 20 peeled from the panel 10 in the present invention, but the present invention is not limited thereto, and can be variously modified in the technical idea of holding the protection film 20, and for example, the holding bodies are composed of three or more bodies.

As an alternative embodiment, the clamping body 510 of the present invention may include a pressure sensor (not shown), and the clamping force may be measured while the clamping body 510 clamps the protective film 20 of the non-protected area NPA peeled off from the panel 10.

The pressure sensor may transmit information related to the clamping force to the control part through an electrical signal, and the control part may control driving of the clamping body 510 so that the clamping force of the clamping body 510 is clamped at a preset pressure.

Referring to fig. 4d, the film sensing part 530 according to an embodiment of the present invention is mounted on the clamping body 510 and can sense the protection film 20. Specifically, the film sensing part 530 may sense whether the protective film 20 exists outside the clamping body 510, and specifically, may sense whether the protective film 20 peeled off from the panel 10 exists in the non-protection region NPA.

The film sensing part 530 according to an embodiment of the present invention may include a photographing part (not shown) that photographs whether the protective film 20 is positioned on the clamping body 510, specifically, between a pair of bodies, and senses whether the protective film 20 is present through image processing.

As an alternative embodiment, the film sensing part 530 may be formed of a displacement sensor, an ultrasonic sensor, or the like, and may sense a distance to sense whether the protective film 20 exists outside the clamping body 510.

As an alternative embodiment, the film sensing part 530 may be formed of a sensor capable of sensing a transparent body such as the protection film 20.

Referring to fig. 4d, a plurality of film sensing parts 530 according to an embodiment of the present invention may be provided, and may be respectively mounted to the clamping body 510, specifically, to a plurality of bodies.

If the film sensing part 530 senses that the protective film 20 exists between the clamping bodies 510, the film sensing part 530 may transmit an electrical signal to the control part, and the control part may transmit an electrical signal to the clamping bodies 510 to control driving of the clamping bodies 510, so that the protective film 20 can be clamped.

According to the protective film peeling apparatus 1 of an embodiment of the present invention, the contact portion 100, specifically, the wire portion 110 can be moved to the area between the protective film 20 and the panel 10 and the protective film 20 of the non-protective area NPA located at the periphery of the protective area PA is removed.

In addition, not in the adhesion manner, the contact portion 100, specifically, the wire portion 110 peels the protective film 20 from the panel 10 while moving, and thus has an effect that the protective film 20 can be precisely removed in the non-protective area NPA formed at 0.5mm to 1mm, compared to the original peeling of the protective film 20 using an adhesive tape or the like coated with an adhesive substance.

In addition, the removing part 200 removes a portion corresponding to the removal region CA between the protection region PA and the non-protection region NPA on the protection film 20, thereby having an effect that it is possible to easily completely remove the protection film 20 from the panel 10 after the non-protection region NPA is peeled from the panel 10.

In addition, the sensor part 300 precisely senses the position of the contact part 100, specifically, the position in the direction in which the panel 10 and the protective film 20 are laminated, thereby having an effect that the wire part 110 can rapidly and precisely peel the protective film 20 from the panel 10 while moving the region between the protective film 20 and the panel 10.

In addition, the sensor part 300 precisely senses the position of the panel 10, and thus the contact part 100, particularly, the wire part 110 can precisely move along a predetermined direction toward the protective film 20 corresponding to the non-protective area NPA.

In addition, due to the film sensing part 530, the film sensing part 530 may sense the protective film 20 peeled from the panel 10 at the outside of the clamping body 510, so that the clamping body 510 may clamp the protective film 20 and be rapidly detached from the panel 10.

A protective film peeling method using the protective film peeling apparatus according to an embodiment of the present invention will be described below.

Fig. 6 is a flowchart illustrating a protective film peeling method according to an embodiment of the present invention. Fig. 7 is a flowchart showing an embodiment of the protective film peeling method shown in fig. 6.

Referring to fig. 6 and 7, a protective film peeling method according to an embodiment of the present invention may include: a step S10 of removing a predetermined region of the protective film attached to the panel; a step S20 of adjusting the panel position; a step S30 of peeling the protective film from the panel; a step S40 of removing the protective film peeled off from the panel.

Referring to fig. 2a, 2b and 6, in step S10, the removing unit 200 is disposed outside the panel 10 and irradiates the light source L toward the protective film 20 attached to the panel 10, so as to remove the protective film 20 having a predetermined thickness.

The removing part 200 receives power from the outside and is movable on the upper side (with reference to fig. 2 b) of the panel 10, and may receive position-related information of the panel 10 from the sensor part 300, specifically, from the second sensor 330, and irradiate the light source L on the protective film 20 along the boundary of the non-protective area NPA and the protective area PA.

The removing part 200 irradiates the light source L and distinguishes the boundary between the protection region PA and the non-protection region NPA in the protection film 20 attached to the panel 10, specifically, removes the protection film 20 of a predetermined thickness along the boundary, and has an effect that the protection film 20 peeled from the panel 10 can be more easily completely detached from the panel 10 in the step S40 of removing the protection film 20 peeled from the panel 10, which will be described later.

In the present invention, the removal unit 200 receives an electric signal from the control unit, moves outside the panel 10 to which the protective film 20 is attached, and irradiates the light source L on the protective film 20 along the boundary between the protective region PA and the non-protective region NPA to form the removal region CA, but the present invention is not limited thereto, and the removal unit 200 may be modified in various ways, for example, the position of the removal unit 200 is fixed, the control unit transmits an electric signal to the driving base unit disposed on the panel 10, and the panel 10 changes the position by driving the driving base unit.

Referring to fig. 6 and 7, the step of adjusting the position of the panel S20 may include the step of providing power to the panel 10 to adjust the position of the panel 10, and may include the step of setting a predetermined point on the panel as a reference point S21, the step of sensing the position of the panel S23, and the step of moving the panel S25.

The position of the panel 10 to which the protective film 20 is attached may be sensed by the sensor part 300, and particularly, may be sensed by the second sensor 330. The second sensor 330 may include an additional photographing part (not shown), and referring to fig. 4a, the position of the panel 10 may be sensed at an upper side (fig. 4a) of the panel 10 to which the protective film 20 is attached.

Referring to fig. 5, in step S21 in which the predetermined point on the panel is set as the reference point, the predetermined point on the panel 10, specifically, the angle P1 at which the contact portion 100 can be moved to be in contact with the panel 10 in order to peel off the protective film 20 may be set as the reference point S21.

Referring to fig. 5, a reference position (shown by a dotted line with reference to fig. 5) of the panel 10 to which the protective film 20 is attached may be set, and the angle P1 may be set as a reference point.

Referring to fig. 5 and 7, in the step S23 of sensing the panel position, the position of the current panel 10 may be sensed in real time. The sensor part 300 may sense the position of the panel 10, and particularly, the second sensor 330 may be located outside the sensor to which the protective film 20 is attached and sense the position of the panel 10.

Referring to fig. 5, a portion shown with a solid line shows the position of the panel 10 sensed by the second sensor 330, and the angle P2 may be set as a reference point. The second sensor 330 may transmit information about the position of the panel 10 to the control part.

Referring to fig. 5 and 7, in the step S25 of moving the panel, the control part receiving the position-related information of the panel 10 from the second sensor 330 may transmit an electrical signal to move the panel 10.

Specifically, the control part may transmit an electrical signal to a driving base part (not shown) configured with the panel 10 to which the protective film 20 is attached, and the position of the panel 10 may be moved to a reference position due to the driving of the driving base.

Referring to fig. 5, the control part may transmit power to the driving base part in which the panel 10 is disposed so as to move d1 in a first direction (a left-right direction with reference to fig. 5) and d2 in a second direction (an up-down direction with reference to fig. 5) such that the center of the panel 10 in an actual position of the panel 10 shown in a solid line coincides with the center of the panel 10 in a reference position of the panel 10 shown in a dotted line.

After the center of the actual panel 10 is aligned with the center of the reference panel 10, an angle between a first axis formed in a first direction (a left-right direction with reference to fig. 5) and a second axis connected to an angle P2 from the center of the panel 10 is measured, and the control section transmits an electric signal to the driving base section and drives the driving base section, so that the position of the panel 10 to which the protective film 20 is attached is moved to a reference position so as to be aligned with an angle θ between the first axis in the reference panel 10 and the second axis connected to the angle P1 from the center of the panel 10.

Referring to fig. 6 and 7, in step S30 of peeling the protective film from the panel according to an embodiment of the present invention, a portion of the protective film 20 attached to the panel 10 corresponding to the non-protection area NPA is peeled from the panel 10, and the contact portion 100 may be moved to peel the protective film 20 from the panel 10.

The step S30 of peeling the protective film from the panel may include a step S31 of adjusting the position of the contact portion, a step S33 of moving the contact portion on the protective film side, and a step S35 of applying pressure to a predetermined region of the protective film.

Referring to fig. 4 and 7, in the step S31 of adjusting the position of the contact portion, the position of the contact portion 100, specifically, the position of the wire portion 110 may be adjusted.

Referring to fig. 4a, the sensor part 300, specifically, the first sensor 310 may sense a position of the wire part 110, and may sense a position along a lamination direction (a vertical direction with reference to fig. 4a) of the panel 10 and the protective film 20.

Referring to fig. 3a, after the position sensing of the sensor part 300, specifically, the wire part 110 of the first sensor 310 is completed, the position-related information of the wire part 110 may be transmitted to the control part by an electrical signal.

The control unit may transmit an electrical signal to the contact portion 100 to move the position of the contact portion 100, specifically, the position of the wire portion 110 so that the position of the wire portion 110 is disposed opposite to the adhesive layer formed between the panel 10 and the protective film 20.

After the position of the wire part 110 in the direction in which the panel 10 and the protective film 20 are laminated is determined, the contact part 100 can be moved in the direction of the panel 10 (from the left to the right with reference to fig. 4a) by receiving power from the outside.

Referring to fig. 3a to 3c and 4c, in the step S33 of moving the contact portion on the side of the protective film, the wire portion 110 may move toward the region between the protective film 20 and the panel 10, specifically, may move from the angle of the panel 10 toward the center of the panel 10.

Referring to fig. 3a to 3c, the contact portion 100, specifically, the driving portion 130 may be connected to the wire portion 110, receive an electrical signal from the control portion, and drive to adjust the tension of the wire portion 110.

Specifically, the first driving body 130a may be connected with the wire part 110 and adjust the tension of the wire part 110 while winding or unwinding the wire part 110 in a clockwise or counterclockwise direction.

The second driving body 130b is disposed to be spaced apart from the first driving body 130a, and allows the wire part 110 to overlap, and guides the moving path in the longitudinal direction of the wire part 110.

Referring to fig. 3a to 3c and 4c, the wire part 110 according to an embodiment of the present invention may enter the area between the panel 10 and the protective film 20 and move in a first direction (from the left to the right with reference to fig. 4 c) to peel the protective film 20 of the non-protective area NPA from the panel 10.

The wire part 110 according to an embodiment of the present invention may be moved in a second direction (from a lower side to an upper side with reference to fig. 4 c) by receiving power while the protective film 20 is peeled from the panel 10, so that the protective film 20 in the non-protective area NPA is peeled from the panel 10.

Referring to fig. 3a to 3c, the contact portion 100, specifically, the wire portion 110 may peel off the protective film 20 corresponding to the non-protective area NPA among the protective films 20 attached on the panel 10 while moving.

Referring to fig. 4b and 4c, in step S35 of applying pressure to the predetermined region of the protective film, the pushing part 400 may apply pressure to the predetermined region of the protective film 20. Specifically, the push portion 400 may contact the protection film 20 corresponding to the protection area PA among the protection films 20 attached on the panel 10 and apply pressure to the panel 10 side direction.

The pushing part 400 contacts the protection area PA of the protection film 20 attached to the panel 10, which is adjacent to the removal area CA removed by the removal part 200, and applies pressure, and can prevent the protection film 20 corresponding to the protection area PA from being peeled or tilted from the panel 10 in the process that the contact part 100, specifically, the wire part 110 peels the protection film 20 corresponding to the non-protection area NPA from the panel 10.

In step S35, the pressure sensor (not shown) may sense the pressure applied by the pushing part 400 to the protective film 20 attached to the panel 10 in real time, and may transmit the pressure-related information to the control part through an electrical signal.

Referring to fig. 6 and 7, the step S40 of removing the protective film peeled off from the panel is a step of completely peeling off the peeled protective film 20 from the panel 10 after the protective film 20 corresponding to the non-protected area NPA is peeled off from the panel 10, and may include a step S41 of sensing the protective film, and a step S43 of clamping the protective film.

Referring to fig. 4d, the clamping portion 500 according to an embodiment of the present invention may clamp the protection film 20 peeled from the panel 10, and may clamp the protection film 20 to be completely detached from the panel 10.

Referring to fig. 4d, the clamping part 500 may include a clamping body 510, a film sensing part 530, and in the step S41 of sensing the protective film 20, the film sensing part 530 may sense whether the protective film 20 exists in the non-protective area NPA attached to the panel 10.

Referring to fig. 4d, the clamping body 510 according to an embodiment of the present invention may receive an electrical signal from the control part and move to approach the protective film 20 of the non-protective area NPA peeled from the panel 10 by the contact part 100.

The clamping body 510 according to an embodiment of the present invention may contact-clamp the protective film 20 peeled off from the panel 10, and the clamping body 510, specifically, a plurality of bodies may be disposed at both sides of the protective film 20.

In the present invention, the holding body 510 is formed of a pair of bodies and is disposed on both sides of the protective film 20, but the holding body is not limited thereto, and may be variously modified within the scope of the technical idea, and for example, the holding body is formed of three or more bodies, and the protective film 20 peeled from the panel 10 may be contacted at a plurality of places to hold the protective film 20.

The description of the film sensing part 530 according to an embodiment of the invention has been described in detail in the protection film stripping apparatus 1, and thus repeated descriptions are omitted.

In the step S41 of sensing the protective film, if the protective film 20 peeled off from the panel 10 is sensed, the film sensing part 530 transmits an electrical signal to the control part, and the control part may transmit the electrical signal to the clamping body 510 to move the clamping body 510 so as to be able to access and clamp the protective film 20 disposed between the clamping body 510, specifically, the pair of bodies.

In the step S43 of clamping the protective film, the clamping body 510 may move so as to be able to contact the protective film 20 peeled off from the panel 10, and may contact and clamp the protective film 20.

After the holding body 510 holds the protective film 20, the holding body 510 is moved in a direction away from the panel 10, and the protective film 20 peeled off from the panel 10 in the non-protection region NPA in the panel 10 can be completely removed from the panel 10 while the holding body 510 is moved.

Referring to fig. 4d, the removing part 200 according to an embodiment of the present invention irradiates the light source L to remove the protective film 20 located at the boundary between the protection area PA and the non-protection area NPA to form the removal area CA, so that when the clamp body 510 removes the protective film 20 of the non-protection area NPA, there is an effect that only the removed protective film 20 can be removed without affecting the protective film 20 of the protection area PA.

Although not shown in the drawings, the pushing portion 400 shown in fig. 4b and 4c may contact and pressurize the protective film 20 attached to the panel 10 in the protective area PA when the protective film 20 peeled from the panel 10 is sandwiched and removed by the sandwiching portion 500.

Therefore, when the holding body 510 holds the protective film 20 and removes it, the protective film 20 attached on the panel 10 in the protective area PA can be prevented from being lifted or peeled.

The protective film peeling method according to an embodiment of the present invention has an effect that the contact portion 100, specifically, the wire portion 110 can move to the area between the protective film 20 and the panel 10 and precisely remove the protective film 20 of the non-protective area NPA located at the periphery of the protective area PA.

Further, since the wire part 110 moves to the area between the panel 10 and the protective film 20 and peels off the protective film 20, the protective film 20 can be removed more precisely in a local area than when the protective film 20 is peeled off by an adhesive tape or the like coated with an adhesive substance.

In addition, since the removal area CA is formed by removing a predetermined area of the protective film 20 attached on the panel 10, specifically, an area corresponding to the boundary between the protection area PA and the non-protection area NPA, when the protective film 20 in the non-protection area NPA is removed from the panel 10, the removed protective film 20 can be easily removed.

In addition, in the step S20 of adjusting the position of the panel 10, the sensor portion 300 precisely senses the position of the contact portion 100, specifically, the position in the direction in which the panel 10 and the protective film 20 are laminated, thereby having an effect that the wire portion 110 can rapidly and precisely peel the protective film 20 from the panel 10 while moving to the area between the protective film 20 and the panel 10.

In addition, the sensor part 300 precisely senses the position of the panel 10, and thus the contact part 100 can precisely move along a preset direction, and particularly, the wire part 110 can precisely move toward the protective film 20 corresponding to the non-protective area NPA.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but the embodiments are merely illustrative, and various modifications and equivalent other embodiments can be derived as long as they are understood by those skilled in the relevant technical field. Therefore, the true technical scope of the present invention should be determined by the technical idea of the appended claims.

The particular implementation described in the examples is one example only and is not intended to limit the scope of the examples in any way. In addition, if not specifically described as "necessary", "important", etc., it may not be a constituent element necessary for the application of the present invention.

In the description of the embodiments (and in particular in the claims), the use of the terms "the" and similar referents may refer to both the singular and the plural. In the following description of the range (range) in the embodiments, the invention to which the individual values belonging to the range are applied (if not otherwise stated) is considered to be included, and the individual values constituting the range are equivalent to the description of the individual values in the summary of the invention. Finally, if the order is explicitly recited for the steps constituting the method of the embodiment or not stated to the contrary, the steps may be performed in an appropriate order. The order of steps described does not necessarily limit the embodiments. In the embodiments, all terms (e.g., etc.) used in the examples or illustrations are used solely for describing the embodiments, and the scope of the embodiments is not limited by the examples or illustrations, as long as the claims are not limited by the claims. Further, it is obvious to the practitioner that various modifications, combinations and changes can be made in accordance with design conditions and factors within the scope of the appended claims or their equivalents.

Claims

1. A protective film peeling apparatus that removes a protective film attached to a panel, comprising:

a contact portion which receives power and is movable in a predetermined direction and is capable of contacting the protective film,

wherein the contact portion includes a wire portion that moves in an area between the protective film and the panel to peel the protective film from the panel.

2. The protective film peeling apparatus according to claim 1, further comprising:

a removing part which irradiates a light source to the protective film attached on the panel to remove a predetermined region of the protective film.

3. The protective film peeling apparatus according to claim 1, further comprising:

a sensor part sensing a position of the wire part.

4. The protective film peeling apparatus according to claim 1,

the contact portion further includes: a driving part, which can move, is connected with the wire part and adjusts the tension of the wire part.

5. The protective film peeling apparatus according to claim 1, further comprising:

and a holding section that holds the protective film peeled from the panel and separates the protective film from the panel.

6. A protective film peeling method is characterized by comprising:

removing a predetermined region of the protective film attached to the panel;

a step of moving the contact portion to the panel and peeling the protective film from the panel; and

a step of removing the protective film peeled off from the panel,

7. The protective film peeling method according to claim 6, further comprising:

a step of providing power to the panel to adjust the position of the panel.

8. The protective film peeling method according to claim 6,

in the step of removing the predetermined region of the protective film, the predetermined region is removed by irradiating the panel with a light source from a removing unit.

9. The protective film peeling method according to claim 6,

the step of peeling the protective film from the panel includes:

adjusting the position of the contact portion; and

and a step of moving the contact portion to the protective film side.

10. The protective film peeling method according to claim 6,

the step of removing the protective film peeled off from the panel includes:

a step of sensing the peeled protective film; and

and a step of holding the peeled protective film.