Apparatus for peeling adhesive film, system for laminating pannel to window having the same and method for peeling adhesive film

Abstract

The present invention relates to an adhesive film peeling device, a window panel bonding system including the same, and an adhesive film peeling method. More specifically, the invention relates to an adhesive film peeling device for peeling an adhesive film attached to a panel for bonding a window and a panel that are at least partially curved, a window panel bonding system including the same, and an adhesive film peeling method. An adhesive film peeling device according to one embodiment of the present invention may include: a body portion; a light irradiation portion attached to a panel that is partially curved and irradiates light onto an adhesive film provided on the body portion; and a light dispersion portion provided corresponding to a curved area of ​​the panel and dispersing and emitting light incident from the light irradiation portion.

Description

Technology Field

[0001] The present invention relates to an adhesive film peeling device, a window panel bonding system including the same, and an adhesive film peeling method. More specifically, the invention relates to an adhesive film peeling device for peeling an adhesive film attached to a panel for bonding a window and a panel that are at least partially curved, a window panel bonding system including the same, and an adhesive film peeling method. Background Technology

[0002] With the recent release of display devices featuring various designs, curved displays capable of enhancing user immersion are being actively developed. These curved displays can be applied to smartphones, tablet PCs, and TVs; they offer excellent space utilization and aesthetics, providing numerous advantages in terms of interior design and aesthetics, leading to active research in various application fields.

[0003] Generally, curved display devices are often used as a single unit by attaching a flexible panel to a cover window that is curved at least partially, and significant development is being made in technology to bond the panel to the window that is curved at least partially.

[0004] Here, to facilitate the lamination of the panel and the window, an adhesive film is attached to one side of the panel extending beyond the panel, and the adhesive film is peeled off after the window is bonded to the other side of the panel opposite to that side; however, the development of technology for peeling off the adhesive film from the panel bonded with the window is still at a minimal level.

[0005] In particular, light transmission is not evenly distributed in the curved areas of the window to cause the adhesive film to lose its adhesive strength, leading to problems where the panel or window tears or breaks as the adhesive film peels off from the panel bonded to the window.

[0006] Therefore, there is a need for a technology that can effectively peel off the adhesive film from the panel bonded to the window without causing defects such as damage to the panel and / or window by evenly transmitting light to cause the adhesive force of the adhesive film to be lost even in the curved area of ​​the window. Prior art literature

[0007] Published Patent No. 10-2014-0002470 The problem to be solved

[0008] The present invention provides an adhesive film peeling device that effectively peels off an adhesive film by evenly irradiating light to cause the adhesive force to be lost on an adhesive film attached to a panel bonded to a window that is at least partially curved, a window panel bonding system including the same, and an adhesive film peeling method. means of solving the problem

[0009] An adhesive film peeling device according to one embodiment of the present invention may include: a body portion; a light irradiation portion attached to a panel that is partially curved and irradiates light onto an adhesive film provided on the body portion; and a light dispersion portion provided corresponding to a curved area of ​​the panel and dispersing and emitting light incident from the light irradiation portion.

[0010] The body portion has a first surface and a second surface facing each other and a third surface connecting the first surface and the second surface, and the light dispersion portion may include a light dispersion rod provided on the third surface of the body portion.

[0011] The above light dispersion rod may have a curved surface at least partially.

[0012] The above panel is bent along an axis crossing the central part, and the central part of the panel can be supported on the curved surface of the light dispersion rod.

[0013] The radius of curvature of the curved surface of the light dispersion rod may be smaller than the radius of curvature of the central part of the panel.

[0014] The light dispersion rod above allows light irradiated from the light irradiation part to be transmitted at least partially and can have low thermal conductivity.

[0015] The light irradiation unit may include a plurality of light-emitting members provided on the first, second, and third surfaces of the body unit, respectively.

[0016] The light dispersion rod may be spaced apart from the light-emitting member provided on the third surface of the body part.

[0017] The distance between the light-emitting member provided on the third surface and the light-dispersing rod may be 10 to 300 mm.

[0018] The third surface of the body part has a smaller area than the first and second surfaces of the body part, and a light-emitting member smaller than the first and second surfaces of the body part may be provided.

[0019] The adhesive film may lose its adhesive strength due to light irradiated from the light irradiation unit.

[0020] The above light irradiation unit can irradiate light of 300 to 400 nm.

[0021] The adhesive film may further include a film fixing member that is longer than the panel and fixes the portion of the adhesive film longer than the panel to the body part.

[0023] A window panel bonding system according to another embodiment of the present invention may include an adhesive film peeling device according to one embodiment of the present invention; and an adhesive curing unit that cures the adhesive by irradiating light onto the adhesive interposed between the window and the panel.

[0024] The amount of light irradiated to the adhesive in the adhesive curing section may be greater than the amount of light irradiated to the adhesive film in the light irradiation section.

[0026] A method for peeling off an adhesive film according to another embodiment of the present invention comprises: a step of supporting a panel, on which an adhesive film is attached and which is partially bent, on a light dispersion rod of a light dispersion unit; a step of irradiating light onto the adhesive film from a light irradiation unit; and a step of peeling off the adhesive film from the panel, wherein the step of irradiating light may include a step of dispersing light incident from the light irradiation unit through the light dispersion rod.

[0027] The light dispersion rod has at least a partially curved surface, the panel is bent about an axis crossing the central part, and the process of supporting the light dispersion rod can be performed by supporting the central part of the panel on the light dispersion rod.

[0028] The process may further include a process in which the adhesive force of the adhesive film is lost between the process of irradiating the light and the process of peeling off the adhesive film.

[0029] In the process of irradiating the light above, light of 300 to 400 nm can be irradiated.

[0030] The above adhesive film is longer than the panel, and the process of fixing the portion of the adhesive film longer than the panel to the body part may be further included.

[0031] The process may further include a process of curing the adhesive interposed between the window and the panel by irradiating light on the adhesive prior to the process of irradiating the light. Effects of the invention

[0032] An adhesive film peeling device according to an embodiment of the present invention provides a light dispersion unit corresponding to a curved area of ​​a panel to which an adhesive film is attached, thereby allowing light incident from a light irradiation unit to be dispersed (or diffused) and emitted at various angles (or directions), and thereby enabling light to be evenly irradiated onto the adhesive film attached to the curved area of ​​the panel. Accordingly, light is evenly irradiated over the entire adhesive film, allowing the adhesive strength to be lost over the entire adhesive film without any parts where the adhesive strength is not lost. This solves problems such as the panel tearing while peeling the adhesive film from the panel due to the parts where the adhesive strength is not lost, and prevents defects such as damage to the panel.

[0033] In addition, by using a light dispersion rod as a light dispersion part to support a panel to which an adhesive film is attached, the adhesive film can be separated from the light irradiation part, thereby suppressing or preventing thermal damage to the panel caused by heat generated from the light irradiation part, such as a light-emitting member, and maintaining a constant distance between the light irradiation part and the adhesive film.

[0034] In addition, by separating the light dispersion rod from the light-emitting member of the light irradiation unit, the dispersion angle of light by the light dispersion rod can be widened, and light can be evenly irradiated onto the adhesive film without any unirradiated parts in the curved area, thereby allowing the adhesive film to be effectively peeled off from the panel.

[0035] In addition, by making the adhesive film longer than the panel and fixing the longer portion of the adhesive film with a film fixing member, the adhesive film can be effectively peeled (or detached) from the panel. When the longer portion of the adhesive film is fixed with a film fixing member while the panel is supported by a light dispersion rod or the like, the adhesive film becomes integral with the body part, etc., so that only the panel can be effectively detached from the body part.

[0036] Meanwhile, a window panel bonding system including an adhesive film peeling device can bond the window and the panel by curing the adhesive interposed between the window and the panel through irradiation of light, thereby allowing the window and the panel to become one unit, and the panel to have appropriate rigidity due to the window, so that the panel can be effectively detached (or removed) from the adhesive film. Brief explanation of the drawing

[0037] FIG. 1 is a perspective view showing an adhesive film peeling device according to an embodiment of the present invention. FIG. 2 is a figure sequentially illustrating the peeling of an adhesive film by an adhesive film peeling device according to an embodiment of the present invention. FIG. 3 is a perspective view showing a window panel bonding system according to another embodiment of the present invention. FIG. 4 is a flowchart illustrating an adhesive film peeling method according to another embodiment of the present invention. Specific details for implementing the invention

[0038] Embodiments of the present invention will be described in more detail below with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms; these embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. In the description, the same reference numerals are assigned to identical components, and the drawings may be partially exaggerated in size to accurately describe the embodiments of the present invention, and the same reference numerals in the drawings refer to the same elements.

[0040] FIG. 1 is a perspective view showing an adhesive film peeling device according to an embodiment of the present invention.

[0041] Referring to FIG. 1, an adhesive film peeling device (100) according to one embodiment of the present invention may include: a body part (110); a light irradiation part (120) attached to a panel (20) that is partially curved and irradiates light onto an adhesive film (10) provided on the body part (110); and a light dispersion part (130) provided corresponding to a curved area (20a) of the panel (20) and disperses and emits light incident from the light irradiation part (120).

[0042] The body portion (110) may form the skeleton (or frame) of the adhesive film peeling device (100), and each component of the adhesive film peeling device (100) may be connected and / or combined.

[0043] For example, the body portion (110) may have a first surface (111) and a second surface (112) facing each other, and a third surface (113) connecting the first surface (111) and the second surface (112). At this time, the central portion of the panel (20) may be located on the third surface (113). The material of the body portion (110) may be made of a metal such as aluminum (Al), but it is sufficient to have rigidity capable of supporting (or fixing) each component of the adhesive film peeling device (100), and is not particularly limited.

[0044] A light irradiation unit (120) may be provided on a body part (110) and may irradiate light onto an adhesive film (10) provided on the body part (110) by being attached (or adhered) to a panel (20) that is partially curved. Here, the panel (20) may be a display panel, may be a flexible display panel, and may be laminated with a window (30) that is partially curved so that at least a portion of it is curved. At this time, the window (30) may be a cover window that serves to protect the screen portion of the display panel from external influences, may be transparent since it must be able to transmit the display screen, and may be a curved window (30) having a curved shape. Here, the curved shape may include a curved or bent shape. The material of such a window (30) may be glass or plastic (e.g., CPI, Colorless Polyimide, etc.), but is not specifically limited thereto.

[0045] And the adhesive film (10) may be provided on the body portion (110), and a panel (20) to which the adhesive film (10) is attached may be provided on the body portion (110) such that the adhesive film (10) faces the body portion (110). Here, the panel (20) to which the adhesive film (10) is attached may be supported on the body portion (110), and may be supported on the body portion (110) by being adhered to a window (30) mounted on a window mounting portion (not shown) on which a window (30) is mounted and moved, or may be supported on the body portion (110) by being directly supported on the body portion (110) or by being supported on a component (e.g., a light dispersion rod) that is directly or indirectly connected (or coupled) to the body portion (110).

[0046] For example, the light irradiation unit (120) may be provided within a body part (110) made of a transparent material such as quartz, and light generated (or emitted) by at least one light source may pass through the first surface (111), second surface (112), and third surface (113) of the transparent body part (110) and be irradiated onto the adhesive film (10).

[0047] Additionally, the light irradiation unit (120) may irradiate light onto the adhesive film (10) through a light source provided on the first surface (111), the second surface (112), and the third surface (113) of the body part (110). In this case, the body part (110) may be formed of a highly reflective material such as metal so that even light emitted toward the body part (110) can be reflected toward the adhesive film (10), and the light emitted from the light source can be effectively transmitted (or irradiated) to the adhesive film (10).

[0048] Here, the adhesive film (10) may lose its adhesive strength (or adhesiveness) due to light irradiated from the light irradiation unit (120), and the adhesive strength that maintained adhesion with the panel (20) may be lost, causing it to peel off (or be separated) from the panel (20). For example, the adhesive film (10) may be an adhesive ultraviolet ray (UV) adhesive sheet, and after the role of adhering to the panel (20) is finished, light such as ultraviolet (UV) light may be irradiated onto the adhesive film (10), and the adhesive film (10) may be cured by the light such as ultraviolet (UV) light, causing the adhesive strength of the adhesive film (10) to be lost. Through this, the adhesive film (10) may be peeled off (or removed) from the panel (20). At this time, the adhesive film (10) may have an adhesive side on which a panel (20) is adhered (or attached) to one side, and may be formed as a laminated structure in which an adhesive layer is laminated on a base film. The adhesive film (10) is not particularly limited thereto, and it is sufficient if it can temporarily adhere and fix the panel (20) for the bonding of the panel (20) and the window (30).

[0049] Meanwhile, the light irradiation unit (120) irradiates light from the body unit (110) toward the adhesive film (10), so that the light irradiated from the light irradiation unit (120) can affect only the adhesive film (10) without passing through the panel (20), and accordingly, the adhesive film (10) can be effectively cured, and the light irradiated from the light irradiation unit (120) can be prevented from having an adverse effect on the panel (20). Here, if the panel (20) is a display panel, a metal such as aluminum (Al) may be deposited on the panel (20), and as a result, at least some of the light irradiated from the light irradiation unit (120) may be reflected and unable to pass through the panel (20). Accordingly, a panel (20) can be provided so that the adhesive film (10) on the body part (110) faces the body part (110), and a light irradiation part (120) can be provided to the body part (110) so that light can be irradiated directly onto the adhesive film (10) without passing through the panel (20) and / or window (30).

[0050] And the light irradiation unit (120) can irradiate light of 300 to 400 nm (wavelength) and can irradiate ultraviolet (UV) light onto the adhesive film (10). That is, light having a wavelength of 300 to 400 nm (e.g., about 365 nm) can be irradiated onto the adhesive film (10) by the light irradiation unit (120). At this time, the adhesive film (10) may be made of a material that is cured by ultraviolet (UV) light and loses its adhesive strength, such as an ultraviolet (UV) adhesive sheet. When light with a wavelength of less than 300 nm is irradiated onto the adhesive film (10), the energy of the light increases and can pass through the adhesive film (10), and the light irradiated from the light irradiation unit (120) penetrates to the panel (20) and may have an adverse effect on the panel (20), and the energy absorption by the light in the adhesive film (10) is not effectively achieved, so the curing of the adhesive film (10) may not be properly achieved. On the other hand, when light with a wavelength exceeding 400 nm is irradiated onto the adhesive film (10), the energy (of light) that cures the adhesive film (10) is not sufficiently transmitted to the adhesive film (10), so the curing of the adhesive film (10) may be minimal.

[0051] The light dispersion unit (130) can be provided corresponding to the curved area (20a) of the panel (20) and can disperse (or diffuse) the light incident from the light irradiation unit (120) and emit it. That is, the light dispersion unit (130) can disperse the light incident from the light irradiation unit (120) at various angles (or directions) and emit it, and can also ensure that the light is evenly irradiated on the adhesive film (10) attached to the curved area (20a) of the panel (20). Accordingly, the light is evenly irradiated on the adhesive film (10) overall, so that the adhesive strength of the adhesive film (10) is lost throughout the entire adhesive film (10) without any part where the adhesive strength of the adhesive film (10) is not lost, and problems such as the panel (20) tearing while peeling the adhesive film (10) from the panel (20) due to the part where the adhesive strength of the adhesive film (10) is not lost can be resolved.

[0052] Meanwhile, the panel (20) may be a panel attached to the window (30), and may be supported on a panel support (not shown) to facilitate adhesion (or bonding) with the window (30). At this time, by providing a panel fixing member that fixes the panel (20) to the panel support (not shown), the panel (20) can be fixed in a certain position more stably compared to the case where the panel (20) is simply supported on the panel support (not shown), and more stable adhesion between the panel (20) and the window (30) can be provided. However, if the panel (20) is directly fixed to the panel support (not shown), physical damage may occur to the display surface of the panel (20).

[0053] As a result, after (temporarily) attaching an adhesive film (10) to the support surface (or the surface facing the bonding surface with the window) of the panel (20) supported by the panel support member (not shown), the panel (20) can be supported on the panel support member (not shown) so that the adhesive film (10) comes into contact with the panel support member (not shown), and by fixing the adhesive film (10) attached to the panel (20) with the panel fixing member, the panel (20) can be fixed on the panel support member (not shown) without damaging the display surface of the panel (20). Here, the panel fixing member may use a roller, etc., but it is sufficient if it can fix the position of the panel (20) by pressing the adhesive film (10) and / or the panel (20), and is not particularly limited thereto.

[0054] Additionally, since the flexible display panel (20) is easily deformed by even a small force (or external force), the panel (20) may sway (or shake) during the process of attaching the panel (20) to the window (30), making it difficult to attach the panel (20) to the window (30). However, if an adhesive film (10) is attached to the panel (20), the panel (20) can bend along the curved surface of the window (30) while having enough rigidity so that the panel (20) does not sway, thereby preventing the panel (20) from swaying. Accordingly, it is possible to prevent the panel (20) from swaying and causing the panel (20) to wrinkle when attached to the window (30), or to prevent lifting and bubbles from forming between the panel (20) and the window (30).

[0055] In this case, when the panel (20) is attached to the window (30), the window (30) may be damaged, such as by breaking, while peeling the adhesive film (10) from the panel (20) due to the parts where the adhesive force of the adhesive film (10) is not lost. However, in the present invention, light incident from the light irradiation unit (120) is dispersed through the light dispersion unit (130) so that light is evenly irradiated onto the adhesive film (10) attached to the curved area (20a) of the panel (20). Accordingly, the adhesive force of the adhesive film (10) is lost throughout the entire adhesive film (10) without any parts where the adhesive force of the adhesive film (10) is not lost, thereby preventing defects such as damage to the panel (20) and / or the window (30) while peeling the adhesive film (10) from the panel (20).

[0056] And the light dispersion section (130) may include a light dispersion rod (131) provided on the third surface (113) of the body section (110). The light dispersion rod (131) may be provided on the third surface (113) of the body section (110) and may disperse light incident from the third surface (113) of the body section (110). At this time, the light dispersion rod (131) may be directly or indirectly connected (or coupled) to the body section (110) and supported (or fixed), and may extend in a uniaxial direction across the panel (20) (or the central part of the panel). Here, the curved area (20a) of the panel (20) may be provided on the third surface (113) of the body section (110), and light incident on and dispersed by the light dispersion rod (131) may be irradiated. The light dispersion rod (131) can uniformly disperse incident light into each angle (or direction) within a predetermined wide angle and can be configured in various ways using the principle of a lens and / or the principle of reflection (e.g., the principle of reflection of a mirror). For example, the light dispersion rod (131) can function as a light-diffusing lens and can disperse light only in the direction in which the panel (20) is curved (or the direction of curvature of the panel).

[0057] Conventionally, light was irradiated perpendicularly to each surface on the first surface (111), second surface (112), and third surface (113) of the body part (110), and an area (or unirradiated area) was created on the adhesive film (10) attached to the curved area (20a) of the panel (20) where light was not irradiated. Generally, light irradiated perpendicularly to the surface of the body part (110) is concentrated in the central part of the curved surface (10b) of the adhesive film (10) by the curved area (20a) of the panel (20), and is not irradiated to the two edges of the curved surface (10b) of the adhesive film (10). Consequently, since light is not irradiated to the two edges of the curved surface (10b) of the adhesive film (10), the adhesive force is not lost, and thus the peeling of the adhesive film (10) from the panel (20) is not effectively performed. If the adhesive film (10) is forcibly removed (or peeled) from the panel (20), the panel (20) is torn or the window (30) is broken.

[0058] However, the adhesive film peeling device (100) according to the present invention can emit light incident from the light irradiation unit (120) by providing a light dispersion rod (131) on the third surface (113) of the body part (110) corresponding to the curved area (20a) of the panel (20) to which the adhesive film (10) is attached, thereby allowing the light to be dispersed and emitted at various angles, and thereby enabling the light to be evenly irradiated on the curved surface (10b) of the adhesive film (10) attached to the curved area (20a) of the panel (20). Accordingly, light is evenly irradiated over the adhesive film (10) so that the adhesive strength of the adhesive film (10) is lost throughout the entire adhesive film (10) without any part where the adhesive strength of the adhesive film (10) is not lost. This solves problems such as the panel (20) tearing or the window (30) breaking while peeling the adhesive film (10) from the panel (20) due to the part where the adhesive strength is not lost, and prevents defects such as damage to the panel (20) and / or the window (30).

[0059] Here, the light dispersion rod (131) may have a partially curved surface, and the curved surface may face in a direction opposite to the direction facing the third surface (113) of the body part (110) (or the curved area of ​​the panel). That is, the curved surface of the light dispersion rod (131) may be provided in the direction facing the curved area (20a) of the panel (20). When the light dispersion rod (131) has a curved surface, light incident on the light dispersion rod (131) may be dispersed (or diffused) to each position (or area) of the curved surface, and light perpendicular to the curved surface may be emitted from each position of the curved surface, and accordingly, light incident from the light irradiation part (120) may be emitted at various angles, and light may be evenly irradiated to the curved surface (10b) of the adhesive film (10) up to both edges of the curved surface (10b).

[0060] For example, the light dispersion rod (131) may be a circular rod in the shape of a cylinder with a curved surface around its circumference, or it may have a curved surface only on the part facing the curved area (20a) of the panel (20) according to the curved area (20a) of the panel (20). In the case where a curved surface is formed only on a part of the light dispersion rod (131), a light incidence structure may be provided on the part where the curved surface is not formed so that light can be easily incident on the surface of the part where the curved surface is not formed.

[0061] Meanwhile, the light dispersion rod (131) can be in contact with the adhesive film (10) to support the panel (20) to which the adhesive film (10) is attached, thereby providing the adhesive film (10) on the body part (110). Additionally, when the light irradiation part (120) irradiates light onto the adhesive film (10) by transmitting light through the first surface (111), the second surface (112), and the third surface (113) of the body part (110) within the transparent body part (110), the third surface (113) of the body part (110) may be formed as a curved surface, and the panel (20) to which the adhesive film (10) is attached may be supported on the third surface (113) of the body part (110) to provide the adhesive film (10) on the body part (110).

[0062] FIG. 2 is a figure illustrating the peeling of an adhesive film by an adhesive film peeling device according to an embodiment of the present invention in sequence, FIG. 2(a) shows the support of a panel with an adhesive film attached, FIG. 2(b) shows light irradiation on the adhesive film, and FIG. 2(c) shows the peeling of the adhesive film.

[0063] Referring to FIG. 2, the panel (20) can be bent with respect to an axis (or center) crossing the central part of the panel (20). For example, the curved area of ​​the window (30) can be provided to exhibit a high curvature in a curved shape with respect to an axis crossing the central part of the window (30), and the panel (20) can be attached to such window (30) and bent with respect to an axis crossing the central part of the panel (20), and by this special shape, a multi-faceted screen can be provided across both the two planes facing each other and the curved area connecting the two planes. Here, to connect the two opposing planes, the curved area may exhibit a high curvature, and the two planes that are each bent and extended (to both sides) around the axis at the center of the window (30) may be formed into a shape having equal areas, and the two planes bent facing each other may be formed into a shape that is bent almost vertically with respect to the center. At this time, a panel (20) may be attached to such a window (30), and the panel (20) may also have a shape corresponding to the window (30).

[0064] Conventionally, there are many curved display devices in which only a portion of the edge is curved in the center of a plane, and most technologies for bonding a flexible panel (20) to a window (30) corresponding to such a curved display device have been developed. However, recently, there is a demand for a technology to bond a panel (20) to a window (30) in which a curved surface is formed in a narrow area as the curvature of the curved area increases and the radius of curvature decreases. When bonding a panel (20) to a window (30) in which such a narrow (or special) curved surface is formed, it is essential to attach an adhesive film (10) to the panel (20). As a result, a technique for peeling off the adhesive film (10) attached to the panel (20) after attaching the panel (20) to the window (30) is required, but the technique of irradiating light perpendicularly to each surface on the first surface (111), second surface (112), and third surface (113) of the conventional body part (110) does not allow light to be evenly irradiated on the curved surface (10b) of the adhesive film (10) which can be provided with a narrow width between the two planes, and the adhesive force is not lost in the parts where light is not irradiated, so the peeling of the adhesive film (10) from the panel (20) is not effectively performed, and if the adhesive film (10) is forcibly removed from the panel (20), the panel (20) is torn or the window (30) is broken. Accordingly, a special technology is required to evenly irradiate light onto the curved surface (10b) of the adhesive film (10) corresponding to the narrow curved area, and the technology to effectively peel off the adhesive film (10) from the panel (20) attached to the window (30) showing such a special curved surface has the great advantage of being able to be utilized in the future development of curved display devices of various designs.

[0065] And the central part of the panel (20) can be supported on the curved surface of the light dispersion rod (131). Here, the central part of the panel (20) may be a narrow curved area (20a) of the panel (20). By supporting the central part of the panel (20) on the curved surface of the light dispersion rod (131), the two planes of the adhesive film (10) can be positioned opposite the first surface (111) and the second surface (112) of the body part (110), and the light dispersion rod (131) can be provided between the third surface (113) of the body part (110) and the curved surface (10b) of the adhesive film (10), so that light can be irradiated from the first surface (111) and the second surface (112) of the body part (110) on the two planes of the adhesive film (10), and the light irradiated from the third surface (113) of the body part (110) can be dispersed from the light dispersion rod (131) to each position of the curved surface and evenly irradiated to both edges.

[0066] Additionally, the curved surface (10b) of the adhesive film (10) is in contact with the light-emitting light-dispersing rod (131), so that no other medium with a different refractive index, such as air, is interposed between the light-dispersing rod (131) and the adhesive film (10), thereby suppressing or preventing internal total reflection in the light-dispersing rod (131), and allowing light (or light energy) to be effectively transmitted to the curved surface (10b) of the adhesive film (10).

[0067] In addition, the panel (20) can be stably supported by the light dispersion rod (131), and two planes of the adhesive film (10) can be provided parallel to (or parallel to) the first surface (111) and the second surface (112) of the body part (110), and the distance from the light irradiation part (120) of the two planes of the adhesive film (10) and the curved surface (10b) (or the distance from the first, second, and third surfaces of the body part) can be maintained constant. Accordingly, the curing of the adhesive film (10) can be effectively achieved, and the adhesive force of the adhesive film (10) can be completely lost without affecting the panel (20), etc.

[0068] Meanwhile, when the panel (20) is supported by the light dispersion rod (131), it may be easy to fix the part (10a) of the adhesive film (10) that is longer than the panel (20) to the body part (110) using the film fixing member (140), and the adhesive film (10) may be made to be integral (or one body) with the body part (110), the light dispersion rod (131), and the film fixing member (140).

[0069] And the radius of curvature of the curved surface of the light dispersion rod (131) may be smaller than the radius of curvature of the central part of the panel (20). If the radius of curvature of the curved surface of the light dispersion rod (131) is greater than the radius of curvature of the central part of the panel (20), the circular bar-shaped light dispersion rod (131) cannot enter the narrow central part of the panel (20), so the central part of the panel (20) cannot be supported by the curved surface of the light dispersion rod (131), and the circular bar-shaped light dispersion rod (131) cannot be used. And if the cross-sectional shape of the light dispersion rod (131) is not circular but includes a shape that includes an arc and a chord greater than the radius of curvature of the central part of the panel (20) (e.g., an arc or an ellipse shape), and the length of the chord is less than twice the radius of curvature of the central part of the panel (20), then the light dispersion rod (131) can enter the narrow central part of the panel (20), but the height (maximum between the chord and the arc) must be lower than the radius of curvature of the central part of the panel (20), so the light cannot be dispersed and irradiated to both edges of the curved surface (10b) of the adhesive film (10). That is, if the cross-sectional height of the light dispersion rod (131) is smaller than the radius of curvature of the central part of the panel (20) (or the radius of curvature of the curved surface of the adhesive film), the position of the light dispersion rod (131) is higher than the edges on both sides of the curved surface (10b) of the adhesive film (10), so the light dispersed and emitted from the light dispersion rod (131) cannot reach the edges on both sides of the curved surface (10b) of the adhesive film (10); and if the cross-sectional height of the light dispersion rod (131) is the same as the radius of curvature of the central part of the panel (20) (or the radius of curvature of the curved surface of the adhesive film), it becomes similar to a (nearly) flat surface, so only light that is (nearly) perpendicular to the third surface (113) of the body part (110) is emitted, and thus cannot be irradiated on the edges on both sides of the curved surface (10b) of the adhesive film (10).

[0070] Additionally, when the central part of the panel (20) is supported on a light dispersion rod (131) having an arc-shaped cross section, it cannot be supported stably, and the panel (20) cannot be tilted so that the two planes of the adhesive film (10) are provided parallel to the first surface (111) and the second surface (112) of the body part (110), and the distance between the two planes of the adhesive film (10) and the first surface and the second surface of the body part (110) cannot be maintained at a constant level.

[0071] Accordingly, the radius of curvature of the curved surface of the light dispersion rod (131) may be smaller than the radius of curvature of the central part of the panel (20), and the (cross-sectional) shape of the light dispersion rod (131), such as the radius of curvature of the curved surface of the light dispersion rod (131), may have a shape corresponding to the shape of the central part of the panel (20) (or the curved area), and the curved surface of the light dispersion rod (131) may have a radius of curvature that gradually decreases in the order of the radius of curvature of the central part of the panel (20) and the radius of curvature of the curved surface (10b) of the adhesive film (10).

[0072] Here, the light dispersion rod (131) may have low thermal conductivity and allow light irradiated from the light irradiation unit (120) to be transmitted at least partially. For example, the light dispersion rod (131) may be made of a material having low thermal conductivity while allowing light irradiated from the light irradiation unit (120) to be transmitted at least partially, or it may be made of a transparent material such as quartz or glass that allows light to be transmitted while having low thermal conductivity (or being a thermal insulator). In order to effectively transmit (or irradiate) light to the adhesive film (10) that causes the adhesive strength of the adhesive film (10) to be lost, the light dispersion rod (131) may transmit at least partially the light irradiated from the light irradiation unit (120) and transmit it effectively without absorbing or reflecting the light. Here, the partial transmission may include not only transmitting only a portion (amount) of the light but also transmitting light only to a certain part (or only to a certain part) of the light dispersion rod (131).

[0073] Additionally, the light dispersion rod (131) may have low thermal conductivity. The display panel (20) is susceptible to heat and may ignite and / or carbonize due to heat. Accordingly, the light dispersion rod (131) may have low thermal conductivity to suppress or prevent heat from being transferred (or conducted) from the light dispersion rod (131) through the adhesive film (10) to the panel (20). The light dispersion rod (131) may generate heat by absorbing at least some of the light incident from the light irradiation unit (120), or heat may be generated by heat being transferred from the light irradiation unit (120), such as the light-emitting member (123), through conduction, convection, radiation, etc., and may have low thermal conductivity to suppress or prevent such heat from being transferred to the panel (20).

[0074] Meanwhile, if the light dispersion rod (131) is made of quartz, the transmittance (or transmittance rate) is high, so the light irradiated from the light irradiation unit (120) can be effectively transmitted to the adhesive film (10), and the amount of light absorption can be reduced, so the heat generation of the light dispersion rod (131) can be suppressed or blocked.

[0075] The light irradiation unit (120) may include a plurality of light-emitting members (121, 122, 123) provided respectively on the first surface (111), the second surface (112), and the third surface (113) of the body part (110). The plurality of light-emitting members (121, 122, 123) may be provided respectively on the first surface (111), the second surface (112), and the third surface (113) of the body part (110). The light-emitting members (121, 122) provided on the first surface (111) and the second surface (112) of the body part (110) may irradiate light onto two planes of the adhesive film (10), and the light-emitting member (123) provided on the third surface (113) of the body part (110) may irradiate light onto the curved surface (10b) of the adhesive film (10). For example, a first light-emitting member (121) may be provided on the first surface (111) of the body part (110), a second light-emitting member (122) may be provided on the second surface (112) of the body part (110), and a third light-emitting member (123) may be provided on the third surface (113) of the body part (110).

[0076] Here, a plurality of light-emitting members (121, 122, 123) may be composed of a circuit board (121a, 122a, 123a) and a light-emitting element (121b, 122b, 123b), and can effectively irradiate light onto an adhesive film (10), and can instantaneously turn the light (or the light-emitting element) on / off, so that the lifespan of the light irradiation unit (120) can be extended compared to an ultraviolet (UV) lamp, a continuous-light ultraviolet (UV) light-emitting diode (LED), etc.

[0077] At this time, the light dispersion rod (131) may be spaced apart from the light-emitting member (123) provided on the third surface (113) of the body part (110). Although the plurality of light-emitting members (121, 122, 123) have many advantages, heat may be generated while emitting light. The light dispersion rod (131) may be spaced apart from the light-emitting member (123) provided on the third surface (113) of the body part (110) so that this heat is not conducted and transferred to the heat-sensitive panel (20) through the light dispersion rod (131) and the adhesive film (10). Since heat transfer by convection is not as fast and is less efficient than heat transfer by conduction, heat transfer by conduction from the light-emitting member (123) can be effectively suppressed or blocked (or prevented) from the light-emitting member (123) to the surface of the panel (20) by simply separating the light-dispersing rod (131) from the light-emitting member (123). Accordingly, by separating the light-dispersing rod (131) from the light-emitting member (123) provided on the third surface (113) of the body part (110), heat generated from the light-emitting member (123) can be suppressed or prevented from being transferred to the panel (20), and accordingly, thermal damage to the panel (20), such as the panel (20) igniting and / or carbonizing due to heat, can be suppressed or prevented.

[0078] In addition, by separating the light dispersion rod (131) from the light-emitting member (123), the angle of light dispersion by the light dispersion rod (131) can be widened, and light can be evenly irradiated onto the adhesive film (10) without any parts of the curved surface (10b) of the adhesive film (10) that are not irradiated with light.

[0079] Meanwhile, the curved surface (10b) of the adhesive film (10) formed by the light dispersion rod (131), as well as the two planar surfaces of the adhesive film (10), can be spaced apart from the light-emitting members (121, 122) provided on the first surface (111) and the second surface (112) of the body part (110).

[0080] Here, the distance between the light-emitting member (123) and the light-dispersing rod (131) provided on the third surface (113) may be 10 to 300 mm. If the distance between the light-emitting member (123) and the light-dispersing rod (131) provided on the third surface (113) is less than 10 mm, the heat generated from the light-emitting member (123) can be smoothly transferred to the panel (20) by convection, and the heat is transferred to the adhesive film (10) by convection and conducted to the panel (20), so that the panel (20) may be damaged, such as by ignition and / or carbonization, by the heat. On the other hand, if the distance between the light-emitting member (123) and the light-dispersing rod (131) provided on the third surface (113) is greater than 300 mm, light may not be properly irradiated onto the adhesive film (10), and there may be many parts of the two planes of the adhesive film (10) that do not face the first surface (111) and the second surface (112) of the body part (110), and parts of the two planes of the adhesive film (10) that are not irradiated with light may occur, and in such parts where light is not irradiated, the adhesive force may not be lost, and thus the peeling of the adhesive film (10) from the panel (20) may not be effectively performed. Accordingly, the light dispersion rod (131) can be spaced 10 to 300 mm apart from the light-emitting member (123) provided on the third surface (113), and the two planar views of the adhesive film (10) can be spaced at least 10 mm (e.g., 10 to 300 mm) apart from the light-emitting members (121, 122) provided on the first surface (111) and the second surface (112) of the body part (110).

[0081] At this time, the third surface (113) of the body part (110) may have a smaller area than the first surface (111) and the second surface (112) of the body part (110), and a light-emitting member (123) smaller than the first surface (111) and the second surface (112) of the body part (110) may be provided. The body part (110) may be formed to correspond to the shape of a panel (20) having a narrow central portion by bending the panel (20) with respect to an axis crossing the central portion, and the third surface (113) of the body part (110) corresponding to the central portion of the panel (20) may have a smaller area than the first surface (111) and the second surface (112) of the body part (110). And the light-emitting member (123) provided on the third surface (113) of the body part (110) only needs to irradiate light onto the curved surface (10b) of the adhesive film (10) corresponding to the narrow central part of the panel (20), but the light-emitting members (121, 122) provided on the first surface (111) and the second surface (112) of the body part (110) need to irradiate light onto two planes of the relatively wide adhesive film (10), so a relatively large number of light-emitting members (121, 122) can be provided.

[0082] For example, if one light-emitting member (123) is provided on the third surface (113) of the body part (110), two or more light-emitting members (121, 122) may be provided on the first surface (111) and the second surface (112) of the body part (110).

[0083] In this way, a smaller number of light-emitting members (123) than the first surface (111) and the second surface (112) of the body part (110) may be provided on the third surface (113) of the body part (110).

[0084] Accordingly, in the present invention, by using a light dispersion rod (131) as a light dispersion part (130) to support a panel (20) to which an adhesive film (10) is attached, the adhesive film (10) can be separated from the light irradiation part (120). Accordingly, thermal damage to the panel (20) caused by heat generated from the light irradiation part (120), such as a light-emitting member (123), can be suppressed or prevented, and the separation distance between the light irradiation part (120) and the adhesive film (10) can be maintained at a constant level. Additionally, by separating the light dispersion rod (131) from the light-emitting member (123) of the light irradiation unit (120), the angle of light dispersion by the light dispersion rod (131) can be widened, and light can be evenly irradiated onto the adhesive film (10) without any parts of the curved surface (10b) of the adhesive film (10) that are not irradiated with light, and accordingly, the adhesive film (10) can be effectively peeled off from the panel (20).

[0085] Meanwhile, the adhesive film (10) may be longer than the panel (20). In order to easily move (or transport) and fix the panel (20) without contacting the panel (20) and causing contact damage, the adhesive film (10) may be made longer than the panel (20) by providing an extra length. For example, the panel (20) can be transported by holding the part of the adhesive film (10) that is longer than the panel (20), and the panel (20) can be fixed to the body part (110) or panel support part (not shown) by holding the part of the adhesive film (10) that is longer than the panel (20). Here, the adhesive surface (or adhesive layer) may not be provided (almost) at the part of the adhesive film (10) that is longer than the panel (20), and the length of the adhesive surface may be similar (or nearly identical) to the panel (20), or may be slightly shorter or slightly longer than the panel (20). Additionally, a protective film may be placed over the adhesive surface (or adhesive layer) provided on the portion longer than the panel (20) of the adhesive film (10) so that the adhesive surface is not exposed, and the portion longer than the panel (20) of the adhesive film (10) may be cured and the adhesive force may be lost.

[0086] The adhesive film peeling device (100) according to the present invention may further include a film fixing member (140) that fixes a portion longer than the panel (20) of the adhesive film (10) to the body portion (110).

[0087] The film fixing member (140) can fix a portion longer than the panel (20) of the adhesive film (10) to the body portion (110) and can make the adhesive film (10) integral with the body portion (110). Here, the film fixing member (140) can be connected and / or coupled with the body portion (110). For example, the film fixing member (140) can fix a portion longer than the panel (20) of the adhesive film (10) by pressing it using a roller (141), but is not particularly limited thereto.

[0088] Meanwhile, the film fixing member (140) may use a pulling member (not shown), such as a clamp, to pull and fix both ends of the portion longer than the panel (20) of the adhesive film (10) so that the adhesive film (10) does not get crumpled and becomes an integral part with the body part (110). Here, when the panel (20) to which the adhesive film (10) is attached is supported by the light dispersion rod (131), a downward pulling force can be applied to both ends of the portion longer than the panel (20) of the adhesive film (10) due to gravity, so that both ends of the portion longer than the panel (20) of the adhesive film (10) can be pulled and fixed to the body part (110) without applying excessive force to the adhesive film (10) and the panel (20).

[0089] In the present invention, the adhesive film (10) is made longer than the panel (20), and the longer portion of the adhesive film (10) is fixed with a film fixing member (140), so that the adhesive film (10) can be effectively peeled (or detached) from the panel (20). In the case where the longer portion of the adhesive film (10) is fixed with a film fixing member (140) while the panel (20) is supported by a light dispersion rod (131), the adhesive film (10) becomes integral with the body portion (110), etc., so that only the panel (20) can be effectively detached from the body portion (110).

[0091] FIG. 3 is a perspective view showing a window panel bonding system according to another embodiment of the present invention.

[0092] Referring to FIG. 3, a window panel bonding system according to another embodiment of the present invention will be examined in more detail, and details that overlap with the previously described parts regarding the adhesive film peeling device according to one embodiment of the present invention will be omitted.

[0093] A window panel bonding system (200) according to another embodiment of the present invention may include an adhesive film peeling device (100) according to one embodiment of the present invention; and an adhesive curing unit (210) that cures the adhesive by irradiating light onto the adhesive interposed between the window (30) and the panel (20).

[0094] The adhesive film peeling device (100) may be an adhesive film peeling device (100) according to an embodiment of the present invention, and may peel off an adhesive film (10) used for bonding a window (30) and a panel (20) from the panel (20). Since the details of the adhesive film peeling device (100) have been described above, they will be omitted.

[0095] The adhesive curing unit (210) can cure the adhesive (not shown) interposed between the window (30) and the panel (20) by irradiating light onto the adhesive. At this time, light can be irradiated onto the window (30) that is bonded to the panel (20) by the adhesive. Since the transparent window (30) allows light to pass through and be effectively irradiated (or transmitted) to the adhesive, the panel (20) has a metal such as aluminum (Al) deposited on it, so light transmission does not occur well, and when light is irradiated onto the panel (20), the light is not effectively transmitted to the adhesive. For example, the window (30) to which the panel (20) is bonded by the adhesive can be supported on the body part (110) of the adhesive film peeling device (100) (e.g., the light dispersion rod), and in this state, the adhesive curing unit (210) can irradiate light such as ultraviolet (UV) light onto the adhesive through the window (30) (or by passing through the window). Meanwhile, the adhesive curing section (210) may be configured in the form of a tunnel, and an insertion opening may be formed in a box-shaped body so that a window (30) can be supported and inserted onto the body section (110), and the window (30), supported on the body section (110) by a rail or the like that is coupled to the body section (110), may be inserted into the body through the insertion opening so that light can be irradiated into the window (30).

[0096] Here, the adhesive may be interposed between the window (30) and the panel (20) for bonding (or bonding) the window (30) and the panel (20). For example, the adhesive may be an optical adhesive such as an optical clear resin (OCR) or an optical clear adhesive (OCA), and may have a light transmittance of 90% or more and prevent the image quality from becoming blurry due to light reflection.

[0097] And the above adhesive can be cured by light to bond the window (30) and the panel (20), and as it cures, it can increase the bonding strength between the window (30) and the panel (20) and integrate the window (30) and the panel (20).

[0098] At this time, the amount of light irradiated to the adhesive in the adhesive curing section (210) may be greater than the amount of light irradiated to the adhesive film (10) in the light irradiation section (120). The adhesive and the adhesive film (10) have different characteristics; the adhesive is cured to increase bonding strength, whereas the adhesive film (10) loses its adhesive strength when cured. Since the adhesive film (10) only needs to lose its adhesive strength, the amount of light irradiated may be small, whereas the adhesive must be completely cured to become integrated with the window (30) and panel (20), so the amount of light irradiated may be large. Additionally, since heat is transferred to the panel (20) after the adhesive film (10) is cured, a large amount of light cannot be irradiated. For example, the amount of light irradiated can be controlled by the irradiation time and / or the wavelength of light, and the amount of light irradiated to the adhesive may be 2,000 to 4,000 mJ / ㎠ (about 3,000 mJ / ㎠), and the amount of light irradiated to the adhesive film (10) may be 100 to 1,000 mJ / ㎠ (about 500 mJ / ㎠). When light of the same wavelength is irradiated to the adhesive and the adhesive film (10), the light may be irradiated to the adhesive for 15 to 30 seconds (e.g., about 20 seconds), and the light may be irradiated to the adhesive film (10) for 1 to 10 seconds (e.g., within about 5 seconds).

[0099] Accordingly, a window panel bonding system (200) including an adhesive film peeling device (100) can bond the window (30) and the panel (20) by irradiating light onto the adhesive interposed between the window (30) and the panel (20) to cure the adhesive, thereby allowing the window (30) and the panel (20) to become one unit, and the panel (20) to have appropriate rigidity due to the window (30), so that the panel (20) can be effectively detached (or removed) from the adhesive film (10).

[0100] Meanwhile, the window panel bonding system (200) of the present invention may further include an adhesive device (not shown) for bonding the window (30) and the panel (20).

[0101] An adhesive device (not shown) can bond a window (30) and a panel (20), and can bond the window (30) and the panel (20) through the adhesive. For example, the adhesive device (not shown) may include a window mounting part (not shown) and a panel support part (not shown), and while the window (30) is mounted on the window mounting part (not shown) and the panel (20) is supported on the panel support part (not shown), the gap between the window mounting part (not shown) and the panel support part (not shown) can be narrowed by a gap adjustment part (not shown), etc., to bond the window (30) and the panel (20), and the window (30) and the panel (20) can be bonded by the adhesive interposed between the window (30) and the panel (20). Here, the window (30) and the panel (20) can be bonded by using a diaphragm (not shown) provided in the panel support (not shown) to press the panel (20) in the direction of the window (30) so that the bonding between the window (30) and the panel (20) can be evenly achieved.

[0103] FIG. 4 is a flowchart illustrating an adhesive film peeling method according to another embodiment of the present invention.

[0104] Referring to FIG. 4, a method for peeling off an adhesive film according to another embodiment of the present invention will be examined in more detail. However, details that overlap with the previously described parts regarding the adhesive film peeling device according to one embodiment of the present invention and the window panel bonding system according to another embodiment of the present invention will be omitted.

[0105] A method for peeling off an adhesive film according to another embodiment of the present invention may include: a process (S100) of supporting a panel (20), on which an adhesive film (10) is attached and which is partially bent, on a light dispersion rod (131) of a light dispersion unit (130); a process (S200) of irradiating light onto the adhesive film (10) from a light irradiation unit (120); and a process (S300) of peeling off the adhesive film (10) from the panel (20).

[0106] First, a panel (20) with at least a portion bent and attached to an adhesive film (10) is supported on a light dispersion rod (131) of a light dispersion unit (130) (S100). The panel (20) with at least a portion bent and attached to an adhesive film (10) can be supported on a light dispersion rod (131) of a light dispersion unit (130), and light can be irradiated onto the adhesive film (10) while the panel (20) is supported so that the adhesive film (10) contacts the light dispersion rod (131). Here, the light dispersion rod (131) can be directly or indirectly connected (or coupled) to the body part (110) and supported (or fixed), and can be extended in a uniaxial direction across the panel (20) (or the central part of the panel). For example, the panel (20) may be attached to the window (30) and supported on the light dispersion rod (131) by a window mounting part (not shown), and may also be supported on the light dispersion rod (131) by a person for the next process(s) by the device.

[0107] Next, light is irradiated onto the adhesive film (10) from the light irradiation unit (120) (S200). Light can be irradiated onto the adhesive film (10) from the light irradiation unit (120), and the light irradiation unit (120) can be provided to the body part (110) to irradiate light onto the adhesive film (10) from the body part (110).

[0108] Next, the adhesive film (10) is peeled off from the panel (20) (S300). The adhesive film (10) can be peeled off from the panel (20) after light is irradiated onto the adhesive film (10), and the adhesive film (10) that has been cured by the light irradiation can be peeled off from the panel (20). For example, after the adhesive force of the adhesive film (10) is lost, the panel (20) can be moved away from the light dispersion rod (131) (e.g., upward direction) by moving the panel (20) to a window mounting part (not shown), etc., such as a window (30), thereby detaching (or removing) the panel (20) from the adhesive film (10) and peeling off the adhesive film (10) from the panel (20).

[0109] The adhesive film peeling method according to the present invention may further include a process (S250) in which the adhesive force of the adhesive film (10) is lost between the process of irradiating light (S200) and the process of peeling the adhesive film (10) (S300).

[0110] And the adhesive strength of the adhesive film (10) may be lost (S250). When light is irradiated onto the adhesive film (10), the adhesive strength of the adhesive film (10) may be lost, thereby allowing the adhesive film (10) to be peeled off from the panel (20). For example, the adhesive film (10) may be cured by the irradiated light, causing the adhesive strength to be lost, and the adhesive film (10) with lost adhesive strength can be easily peeled off from the panel (20).

[0111] The process of irradiating the light (S200) may include a process (S210) of dispersing the light incident from the light irradiation unit (120) through the light dispersion rod (131).

[0112] While irradiating light onto the adhesive film (10), the light incident from the light irradiation unit (120) can be dispersed through the light dispersion rod (131) (S210). By dispersing the light incident from the light irradiation unit (120) through the light dispersion rod (131), the light can be irradiated onto the curved surface (10b) of the adhesive film (10) due to the curved area (20a) of the panel (20), and accordingly, the light can be evenly irradiated to both edges of the curved surface (10b) of the adhesive film (10).

[0113] The light dispersion rod (131) may have a curved surface at least partially, and the panel (20) may be bent along an axis running across the center. The light dispersion rod (131) may have a curved surface at least partially, and said curved surface may face at least the curved area (20a) of the panel (or the opposite direction toward the third face of the body). That is, the curved surface of the light dispersion rod (131) may be provided in the direction toward the curved area (20a) of the panel (20). When the light dispersion rod (131) has a curved surface, light incident on the light dispersion rod (131) can be dispersed (or diffused) to each position (or area) of the curved surface, and light perpendicular to the curved surface can be emitted from each position of the curved surface, and accordingly, light incident from the light irradiation unit (120) can be emitted at various angles, and light can be evenly irradiated to both edges of the curved surface (10b) of the adhesive film (10).

[0114] At this time, the panel (20) may be bent with respect to (or center of) an axis crossing the central part. For example, the curved area of ​​the window (30) may be provided to exhibit a high curvature in a bent shape with respect to an axis crossing the central part of the window (30), and the panel (20) may be attached to such window (30) and bent with respect to an axis crossing the central part of the panel (20), and by this special shape, a multi-faceted screen area may be provided across both the two planes facing each other and the curved area connecting the two planes. Here, to connect the two planes facing each other, the curved area may exhibit a high curvature, and the two planes that are each bent and extended (to both sides) around the axis at the central part of the window (30) may be formed in a shape having the same area, and the two planes bent facing each other may be formed in a shape that is bent almost vertically with respect to the central part. At this time, a panel (20) is attached to the window (30), so that the panel (20) can also have a shape corresponding to the window (30).

[0115] And the process (S100) of supporting on the light dispersion rod (131) can be performed by supporting the central part of the panel (20) on the light dispersion rod (131). Here, the central part of the panel (20) may be a narrow curved area (20a) of the panel (20). By supporting the central part of the panel (20) on the curved surface of the light dispersion rod (131), the two planes of the adhesive film (10) can be positioned opposite the first surface (111) and the second surface (112) of the body part (110), and the light dispersion rod (131) can be provided between the third surface (113) of the body part (110) and the curved surface (10b) of the adhesive film (10), so that light can be irradiated from the first surface (111) and the second surface (112) of the body part (110) on the two planes of the adhesive film (10), and the light irradiated from the third surface (113) of the body part (110) can be dispersed from the light dispersion rod (131) to each position of the curved surface and evenly irradiated to both edges.

[0116] Additionally, the curved surface (10b) of the adhesive film (10) is in contact with the light-emitting light-dispersing rod (131), so that no other medium with a different refractive index, such as air, is interposed between the light-dispersing rod (131) and the adhesive film (10), thereby suppressing or preventing internal total reflection in the light-dispersing rod (131), and allowing light (or light energy) to be effectively transmitted to the curved surface (10b) of the adhesive film (10).

[0117] In the above light irradiation process (S200), light of 300 to 400 nm can be irradiated. Light of 300 to 400 nm (wavelength) can be irradiated onto the adhesive film (10) through the light irradiation unit (120), and ultraviolet (UV) light can be irradiated onto the adhesive film (10). That is, light having a wavelength of 300 to 400 nm (e.g., about 365 nm) can be irradiated onto the adhesive film (10) by the light irradiation unit (120). At this time, the adhesive film (10) may be made of a material that is cured by ultraviolet (UV) light and loses its adhesive strength, such as an ultraviolet (UV) adhesive sheet. When light with a wavelength of less than 300 nm is irradiated onto the adhesive film (10), the energy of the light increases and can pass through the adhesive film (10), and the light irradiated from the light irradiation unit (120) penetrates to the panel (20) and may have an adverse effect on the panel (20), and the energy absorption by the light in the adhesive film (10) is not effectively achieved, so the curing of the adhesive film (10) may not be properly achieved. On the other hand, when light with a wavelength exceeding 400 nm is irradiated onto the adhesive film (10), the energy (of light) that cures the adhesive film (10) is not sufficiently transmitted to the adhesive film (10), so the curing of the adhesive film (10) may be minimal.

[0118] Meanwhile, in the process of irradiating the light (S200), the light may be irradiated for 1 to 10 seconds. If the irradiation time is less than 1 second, the curing of the adhesive film (10) may be minimal, and the loss of adhesive strength may not occur properly. Consequently, the adhesive film (10) may not peel off well from the panel (20), and the panel (20) may be damaged. On the other hand, if the irradiation time exceeds 10 seconds, the adhesive film (10) may continuously absorb light energy and be heated after the curing of the adhesive film (10) is completed, and this heat may be conducted (or transferred) to the panel (20), causing thermal damage to the panel (20), such as the panel (20) igniting and / or carbonizing.

[0119] Here, the adhesive film (10) may be longer than the panel (20). In order to easily move (or transport) and fix the panel (20) without contacting the panel (20) and causing contact damage, the adhesive film (10) may be made longer than the panel (20) by providing an extra length. For example, the panel (20) can be transported by holding the part of the adhesive film (10) that is longer than the panel (20), and the panel (20) can be fixed to the body part (110) or panel support part (not shown) by holding the part of the adhesive film (10) that is longer than the panel (20).

[0120] And the adhesive film peeling method according to the present invention may further include a process (S150) of fixing a portion of the adhesive film (10) longer than the panel (20) to the body portion (110).

[0121] A portion of the adhesive film (10) longer than the panel (20) can be fixed to the body portion (110) (S150). A portion of the adhesive film (10) longer than the panel (20) can be fixed to the body portion (110) through the film fixing member (140), and the adhesive film (10) can be made integral with the body portion (110). Here, the film fixing member (140) may be connected and / or coupled to the body portion (110), but is not particularly limited thereto.

[0122] In the present invention, the adhesive film (10) is made longer than the panel (20), and the longer portion of the adhesive film (10) is fixed with a film fixing member (140), so that the adhesive film (10) can be effectively peeled off from the panel (20). When the longer portion of the adhesive film (10) is fixed with a film fixing member (140) while the panel (20) is supported by a light dispersion rod (131), the adhesive film (10) becomes integral with the body portion (110), etc., so that only the panel (20) can be effectively detached from the body portion (110).

[0123] The adhesive film peeling method according to the present invention may further include a process (S160) of curing the adhesive interposed between the window (30) and the panel (20) by irradiating light on the adhesive prior to the process (S200) of irradiating light.

[0124] Then, light can be irradiated onto the adhesive interposed between the window (30) and the panel (20) to cure the adhesive (S160). Light can be irradiated onto the adhesive (not shown) interposed between the window (30) and the panel (20) through the adhesive curing section (210) to cure the adhesive. At this time, light can be irradiated onto the window (30) that is bonded to the panel (20) by the adhesive. Since the transparent window (30) allows light to pass through and the light can be well irradiated (or transmitted) to the adhesive, the panel (20) has a metal such as aluminum (Al) deposited on it, so light transmission does not occur well, and when light is irradiated onto the panel (20), the light is not well transmitted to the adhesive. The adhesive can be cured by light to bond the window (30) and the panel (20), and as it cures, it can increase the bonding strength between the window (30) and the panel (20) and integrate the window (30) and the panel (20).

[0125] Here, in the process of curing the adhesive (S160), light may be irradiated for 15 to 30 seconds (e.g., about 20 seconds). That is, the irradiation time in the process of curing the adhesive (S160) may be longer than the irradiation time in the process of irradiating light (S200), and the adhesive may be sufficiently cured so that the bonding strength between the window (30) and the panel (20) is maximized.

[0126] Accordingly, in the present invention, the window (30) and the panel (20) can be bonded by irradiating light onto the adhesive interposed between the window (30) and the panel (20) to cure the adhesive, and accordingly, the window (30) and the panel (20) can become one unit, and the panel (20) can have appropriate rigidity due to the window (30), so that the panel (20) can be effectively detached from the adhesive film (10).

[0128] As such, the present invention provides a light dispersion section corresponding to the curved area of ​​a panel to which an adhesive film is attached, thereby allowing light incident from a light irradiation section to be dispersed and emitted at various angles, and thereby enabling the adhesive film attached to the curved area of ​​the panel to be evenly irradiated with light. Accordingly, light is evenly irradiated over the entire adhesive film, allowing the adhesive strength to be lost throughout the entire adhesive film without any unlost parts. This resolves problems such as the panel tearing while peeling the adhesive film from the panel due to unlost adhesive strength, and prevents defects such as damage to the panel. Furthermore, by using a light dispersion rod as the light dispersion section to support the panel to which the adhesive film is attached, the adhesive film can be separated from the light irradiation section. Consequently, thermal damage to the panel caused by heat generated from the light irradiation section, such as a light-emitting member, can be suppressed or prevented, and the separation distance between the light irradiation section and the adhesive film can be maintained at a constant level. In addition, by separating the light dispersion rod from the light-emitting member of the light irradiation unit, the dispersion angle of light by the light dispersion rod can be widened, and light can be evenly irradiated onto the adhesive film without any unirradiated parts in the curved area, thereby allowing the adhesive film to be effectively peeled off from the panel. Furthermore, by making the adhesive film longer than the panel and fixing the long portion of the adhesive film with a film fixing member, the adhesive film can be effectively peeled off (or detached) from the panel. When the long portion of the adhesive film is fixed with a film fixing member while the panel is supported by the light dispersion rod, etc., the adhesive film becomes integrated with the body part, etc., allowing only the panel to be effectively detached from the body part. Meanwhile, by irradiating light onto the adhesive interposed between the window and the panel to cure the adhesive, the window and the panel can be bonded together, thereby allowing the window and the panel to become an integral unit, and the panel to have appropriate rigidity due to the window, allowing the panel to be effectively detached from the adhesive film.

[0130] The term “~ on” used in the above description includes cases of direct contact as well as cases where it is located facing the upper or lower surface without direct contact; it is possible to be located facing the entire upper or lower surface as well as partially facing it, and it is used to mean facing from a distance or in direct contact with the upper or lower surface.

[0132] Although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the embodiments described above, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible without departing from the gist of the present invention as claimed in the claims. Accordingly, the technical scope of protection of the present invention should be determined by the following claims. Explanation of the symbols

[0133] 10: Adhesive film 10a: Part of the adhesive film longer than the panel 10b: Curved surface of adhesive film 20: Panel 20a: Curved area of ​​the panel 30: Window 100 : Adhesive film peeling device 110 : Body part 111: First surface of the body part 112: Second surface of the body part 113: Third side of the body part 120: Light irradiation part 121, 122, 123: Multiple light-emitting members 121a, 122a, 123a: Circuit board 121b, 122b, 123b: Light-emitting elements 130: Light dispersion part 131: Light dispersion rod 140: Film fixing member 141 : Roller 200 : Window panel bonding system 210: Adhesive curing section

Claims

Claim 1 An adhesive film peeling device comprising: a body portion; a light irradiation portion attached to a panel that is at least partially curved and irradiates light onto an adhesive film provided on the body portion; and a light dispersion portion provided corresponding to a curved area of ​​the panel and dispersing and emitting light incident from the light irradiation portion. Claim 2 An adhesive film peeling device according to claim 1, wherein the body portion has a first surface and a second surface facing each other and a third surface connecting the first surface and the second surface, and the light dispersion portion includes a light dispersion rod provided on the third surface of the body portion. Claim 3 In claim 2, the light dispersion rod is an adhesive film peeling device having at least a partially curved surface. Claim 4 An adhesive film peeling device according to claim 3, wherein the panel is bent with respect to an axis crossing the central portion, and the central portion of the panel is supported on the curved surface of the light dispersion rod. Claim 5 An adhesive film peeling device according to claim 4, wherein the radius of curvature of the curved surface of the light dispersion rod is smaller than the radius of curvature of the central part of the panel. Claim 6 In claim 2, the light dispersion rod is an adhesive film peeling device having low thermal conductivity and allowing light irradiated from the light irradiation unit to be transmitted at least partially. Claim 7 An adhesive film peeling device according to claim 2, wherein the light irradiation part comprises a plurality of light-emitting members provided on the first surface, the second surface, and the third surface, respectively, of the body part. Claim 8 In claim 7, the light dispersion rod is an adhesive film peeling device spaced apart from a light-emitting member provided on the third surface of the body portion. Claim 9 An adhesive film peeling device according to claim 8, wherein the distance between the light-emitting member provided on the third surface and the light-dispersing rod is 10 to 300 mm. Claim 10 An adhesive film peeling device according to claim 7, wherein the third surface of the body part has an area smaller than the first and second surfaces of the body part, and is provided with a light-emitting member smaller than the first and second surfaces of the body part. Claim 11 In claim 1, the adhesive film is an adhesive film peeling device in which the adhesive force is lost by light irradiated from the light irradiation unit. Claim 12 In claim 1, the light irradiation unit is an adhesive film peeling device that irradiates light of 300 to 400 nm. Claim 13 An adhesive film peeling device according to claim 1, wherein the adhesive film is longer than the panel, and further comprises a film fixing member for fixing the portion of the adhesive film longer than the panel to the body part. Claim 14 A window panel bonding system comprising: an adhesive film peeling device according to any one of claims 1 to 13; and an adhesive curing unit that cures the adhesive by irradiating light onto the adhesive interposed between a cover window protecting the panel and the panel. Claim 15 A window panel bonding system according to claim 14, wherein the amount of light irradiated to the adhesive in the adhesive curing section is greater than the amount of light irradiated to the adhesive film in the light irradiation section. Claim 16 A method for peeling off an adhesive film, comprising: a process of supporting a panel, on which an adhesive film is attached and at least a portion is bent, on a light dispersion rod of a light dispersion unit; a process of irradiating light onto the adhesive film from a light irradiation unit; and a process of peeling off the adhesive film from the panel, wherein the process of irradiating light includes a process of dispersing light incident from the light irradiation unit through the light dispersion rod. Claim 17 A method for peeling an adhesive film according to claim 16, wherein the light dispersion rod has at least a partially curved surface, the panel is bent with respect to an axis crossing the central portion, and the process of supporting the light dispersion rod is performed by supporting the central portion of the panel on the light dispersion rod. Claim 18 A method for peeling an adhesive film according to claim 16, further comprising a process in which the adhesive force of the adhesive film is lost between the process of irradiating the light and the process of peeling the adhesive film. Claim 19 A method for peeling an adhesive film according to claim 16, wherein the light irradiation process involves irradiating light of 300 to 400 nm. Claim 20 A method for peeling off an adhesive film according to claim 16, wherein the adhesive film is longer than the panel, and the part of the adhesive film longer than the panel is fixed to a body portion on which the light dispersion rod is supported. Claim 21 A method for peeling an adhesive film according to claim 16, further comprising the step of curing the adhesive by irradiating light onto the adhesive interposed between the cover window protecting the panel and the panel prior to the process of irradiating light.

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