JP6335604B2 - Protective film for display - Google Patents

Description

  The present invention relates to a display protective film for protecting a display area of a display.

  A protective film may be attached to a display of various devices such as a mobile phone, a game machine, or a tablet terminal in order to protect at least the display area. Some protective films of this type not only protect the display area of the display but also have other functions such as a light reflection preventing function.

  A protective film is comprised by laminating | stacking another film layer through the adhesion layer on the base film layer which covers and protects the display area of a display. Specifically, a release film layer is laminated on one surface of the base film layer via an adhesive layer, and after peeling the release film layer from the adhesive layer, the adhesive layer is bonded to the display area of the display. be able to. A film layer corresponding to various functions is laminated on the other surface of the base film layer as necessary.

  In a general protective film, one release film layer covers the entire adhesive layer, and after the release film layer is released to expose the entire adhesive layer, it is bonded to the display area of the display. At this time, the user attaches the protective film while aligning the protective film with respect to the display area, and it is usually difficult to attach the protective film at an accurate position once.

  For this reason, many users repeat the work of pasting the protective film to the display area halfway, then peeling it off from the display area, and pasting it while aligning again. In this case, there is a possibility that problems such as a decrease in the adhesive strength of the adhesive layer, and dust or bubbles entering between the adhesive layer and the display area may occur. Therefore, in recent years, a configuration has been proposed that makes it easy to attach the protective film to an accurate position at one time (for example, see Patent Document 1 below).

  Patent Document 1 discloses a configuration in which a temporary fixing piece for temporarily fixing one end side of a protective sheet main body is applied to a peripheral region of a surface to be protected, thereby serving as a scaffold for an application work ( (See claim 1). A temporary strip release sheet is attached to the adhesive surface of the temporary stop piece. After the temporary release piece release sheet is peeled off, the protective sheet body is positioned according to the display screen of the display. The temporary fixing piece can be pasted and fixed to the outer frame of the display screen or the like (see paragraph [0047]).

Japanese Patent No. 4887451

  However, in the configuration as described in Patent Document 1, the protective sheet main body is aligned with the display screen of the display in a state in which the temporary fixing strip release sheet is peeled off. There exists a possibility that the adhesive surface of a piece may adhere. In this case, there is a problem that the alignment cannot be performed smoothly, and the pasting work takes time.

  Further, in the configuration as in Patent Document 1, it is necessary to perform an operation of peeling and removing the temporary fixing pieces after the protective sheet main body is attached to the display screen of the display (see paragraph [0048]). For this reason, the number of steps of the pasting work increases, and this point may cause a long time for the pasting work.

  This invention is made | formed in view of the said situation, and it aims at providing the protective film for a display which can be correctly and smoothly bonded with respect to the display area of a display by simple operation | work.

  The protective film for a display according to the present invention is a protective film for a display for protecting the display area of the display, and includes a base film layer, an adhesive layer, a release film layer, an adhesive member, and a protruding portion. Prepare. The base film layer covers the display area. The adhesive layer is formed on one surface of the base film layer. The release film layer is provided on the adhesive layer and can be peeled from the adhesive layer. The attachment member is fixed to a part of the release film layer and attached to the display in a peelable state. The protrusion is provided on the adhesion member or the release film layer and protrudes from the surface of the adhesion member. The surface of the adhesion member can be brought into contact with and adhered to the display by pressing the base film layer toward the display while the protrusion is in contact with the display.

  According to such a structure, after aligning a protective film with respect to the display area of a display, the surface of an adhesion member is made to adhere to a display by pressing a base film layer, and after that, a peeling film The adhesive layer can be bonded to the display area by peeling the layer. As a result, the protective film can be accurately positioned by a simple operation, and since the protruding portion protrudes from the surface of the adhesive member, the surface of the adhesive member adheres to the display during the alignment of the protective film. This can be prevented by the protrusion.

  Thus, after positioning a protective film, the area | region in which the adhesion member in a peeling film layer is not provided is peeled partially, and the exposed adhesion layer is bonded to a display area. Thereafter, the remaining part of the release film layer is peeled together with the adhesive member, and the remaining part of the adhesive layer is exposed and bonded to the display area, whereby the entire adhesive layer is bonded to the display area. At this time, the adhering member can be removed simultaneously with the operation of peeling the release film layer. Therefore, the protective film can be bonded accurately and smoothly to the display area of the display with a simple operation.

  The adhering member may be formed of an elastically deformable adsorbing sheet and adsorbed in a peelable state with respect to the display.

  According to such a configuration, the adhesive member made of the adsorbing sheet is elastically deformed by pressing the base film layer toward the display side in a state where the protruding portion is in contact with the display, and the surface thereof is displayed on the display. Can be adsorbed. By using the adsorbing sheet, the protective film can be positioned with an appropriate adsorbing force, and can be easily peeled off when peeling from the display, and no adhesive or the like remains on the display.

  The base film layer may be formed in a rectangular shape. In this case, the said adhesion member may be provided in the position corresponding to the one end part of the longitudinal direction of the said base film layer so that it may extend in parallel with respect to the transversal direction of the said base film layer.

  According to such a structure, a protective film can be positioned with an adhesion member in the position corresponding to the one end part of the longitudinal direction of a base film layer. Thereby, the other end part side of the longitudinal direction of a base film layer can be turned up, a part of peeling film layer can be peeled easily, and the exposed adhesion layer can be bonded to a display area. Moreover, the remaining part of a peeling film layer can be peeled with an adhesion member after that, and the remaining part of an adhesion layer can be bonded together to a display area.

  In particular, since the attachment member is provided so as to extend in parallel to the short direction of the base film layer, the protection in the short direction generally occurs when the surface of the attachment member adheres to the display. The displacement of the film can be effectively prevented. Therefore, the protective film can be more accurately bonded to the display area of the display.

  According to the present invention, it is possible to prevent the surface of the adhering member from adhering to the display during the alignment of the protective film by the protruding portion, and to remove the adhering member simultaneously with the operation of peeling the release film layer. Therefore, the protective film can be bonded to the display area of the display accurately and smoothly with a simple operation.

It is the top view which showed the structural example of the protective film which concerns on one Embodiment of this invention. It is AA sectional drawing of the protective film in FIG. 1, and has shown only a part of protective film. It is a schematic sectional drawing for demonstrating the aspect at the time of bonding the protective film of FIG. 1 on the display area of a display. It is a schematic sectional drawing for demonstrating the aspect at the time of bonding the protective film of FIG. 1 on the display area of a display. It is a top view for demonstrating the modification of a protrusion part.

  Below, embodiment of the protective film which concerns on this invention is described in detail. In addition, each layer of the protective film illustrated in the following embodiments is shown with a thickness larger than the actual thickness for easy understanding of the description.

  FIG. 1 is a plan view showing a configuration example of a protective film 101 according to an embodiment of the present invention. Moreover, FIG. 2 is AA sectional drawing of the protective film 101 in FIG. 1, and has shown only a part of protective film 101. FIG. The protective film 101 according to the present embodiment is a display protective film that is attached to a display of various devices such as a mobile phone, a game machine, or a tablet terminal, and protects at least a display area of the display.

  The protective film 101 is configured by laminating a base film layer 111 and a release film layer 112 via an adhesive layer 113. That is, the adhesive layer 113 is formed on one surface of the base film layer 111, and the release film layer 112 is provided on the adhesive layer 113. On the other surface of the base film layer 111, for example, an arbitrary film layer corresponding to various functions such as a light reflection preventing function may be laminated. Moreover, the base film layer 111 itself may have such various functions.

  The base film layer 111 has a shape that can cover the display area of the display. More specifically, the base film layer 111 has a shape that is the same as or larger than the display area of the display. In this example, the base film layer 111 is formed in a rectangular shape, but may be formed in another rectangular shape such as a square shape or the like, depending on the shape of the display area of the display. Instead, it may be formed in various other shapes such as a circle or an ellipse.

  The adhesive layer 113 is formed on the entire one surface of the base film layer 111. The release film layer 112 has a shape larger than that of the base film layer 111 and is laminated in a state of protruding outward from the periphery of the base film layer 111. The release film layer 112 is formed of, for example, a transparent film. In the state shown in FIG. 1, the base film layer 111 on the back side is visible through the transparent release film layer 112. However, the release film layer 112 may have the same shape as the base film layer 111 or may not be transparent.

  The release film layer 112 can be peeled from the adhesive layer 113. Therefore, by peeling the release film layer 112 to expose the adhesive layer 113 and bonding the adhesive layer 113 to the display area of the display, the display area can be covered and protected by the base film layer 111.

  In this embodiment, the adhering member 114 is fixed to a part on the release film layer 112. The adhesion member 114 is formed, for example, in a belt shape having a predetermined width, and is parallel to the short direction L2 of the base film layer 111 at a position corresponding to one end portion of the base film layer 111 in the longitudinal direction L1. It extends to. In this example, the attachment member 114 extends in a straight line from one end portion to the other end portion in the short direction L2 of the base film layer 111.

  The adhesion member 114 is formed of, for example, an elastically deformable suction sheet. Specifically, the adhering member 114 is composed of a sheet-like urethane foam having a thickness of about 10 to 1000 μm. The width (length of the short side) of the adhesion member 114 is preferably about 5 mm. The adhesion member 114 is adsorbed by being pressed against the surface (flat surface) of the display.

  The adhering member 114 is strong against a force acting in a direction parallel to the surface when adhering to the surface of the display, and does not easily shift, but it applies a force in a direction perpendicular to the surface. If it is, it can be made to peel easily. As described above, the attachment member 114 can be attached to the display in a peelable state.

  A protrusion 115 is provided on the adhesion member 114. In this example, a pair of long protrusions 115 are provided in a straight line along a pair of long sides of the attachment member 114, so that a pair of base film layers 111 extend in parallel to the short direction L2. The surface 114 a of the adhesion member 114 is exposed between the protrusions 115.

  The protruding portion 115 is made of a film layer formed of a resin such as PE (polyethylene), PET (polyethylene terephthalate) or PP (polypropylene), paper, or the like, and protrudes from the surface 114a of the attachment member 114. The thickness of the protrusion 115 is, for example, about 25 to 100 μm, and this thickness matches the level difference between the surface 115 a of the protrusion 115 and the surface 114 a of the attachment member 114.

  On the opposite side of the release film layer 112 from the attachment member 114 side, for example, a cut 116 is formed. The cut 116 extends in a straight line from the one end edge 112a to the other end edge 112b of the release film layer 112, whereby the release film layer 112 is divided into two. If the release film layer 112 is peeled from the one end edge 112a or the other end edge 112b along the notch 116, a part 112c of the release film layer 112 is removed, and the adhesive layer 113 corresponding to this part is exposed.

  3 and 4 are schematic cross-sectional views for explaining an aspect when the protective film 101 of FIG. 1 is bonded to the display region 2 of the display 1. First, as shown in FIG. 3A, the protective film 101 is positioned by moving the protective film 101 so that the adhesion member 114 faces the display area 2 of the display 1.

  At this time, since the protrusion 115 protrudes from the surface 114a of the attachment member 114, the surface 114a of the attachment member 114 does not adhere to the display area 2, and the surface 115a of the protrusion 115 is in sliding contact with the display area 2. The alignment can be performed by moving the protective film 101 in the horizontal direction. After the alignment is performed in this way, the base film layer 111 is pressed toward the display 1 side in a state where the projecting portion 115 is in contact with the display region 2 of the display 1, thereby FIG. ), The surface 114a of the attaching member 114 can be brought into contact with the display region 2 and attached.

  Thus, in this embodiment, after aligning the protective film 101 with respect to the display region 2 of the display 1, the surface 114 a of the attachment member 114 is attached to the display 1 by pressing the base film layer 111. Then, the release film layer 112 is peeled off, and the adhesive layer 113 can be bonded to the display region 2. Accordingly, the protective film 101 can be accurately positioned by a simple operation, and the protruding portion 115 protrudes from the surface 114a of the attaching member 114. Therefore, the attaching member 114 is in the middle of the alignment of the protective film 101. It is possible to prevent the projection 114 from adhering the surface 114 a to the display 1.

  Thus, after positioning the protective film 101 by the adhesion member 114 at a position corresponding to one end portion in the longitudinal direction L1 of the base film layer 111, the protective film 101 is affixed to the display region 2 in the following procedure. Do work. Specifically, as shown in FIG. 4A, the other end side of the base film layer 111 in the longitudinal direction L1 (the side opposite to the attaching member 114 side) is turned up to provide the attaching member 114. A part 112c of the release film layer 112 in the unexposed area is peeled off. After exposing a part of the adhesive layer 113 in this way, the exposed adhesive layer 113 is bonded to the display area 2 as shown in FIG.

  Then, the adhesive member 114 is peeled from the display 1 by turning up the end of the peeling film layer 112 on the adhesive member 114 side. Then, the remaining part of the release film layer 112 is peeled off from the cut 116 side, and as shown in FIG. 4C, the release film layer 112 is reversed and pulled out, and the remaining part of the adhesive layer 113 is displayed in the display area 2. Paste to.

  In this way, the remaining part of the release film layer 112 is peeled off together with the adhesive member 114, and the remaining part of the adhesive layer 113 is exposed and bonded to the display area 2, whereby the entire adhesive layer 113 is displayed in the display area 2. Paste. At this time, the adhesion member 114 can be removed simultaneously with the operation of peeling the release film layer 112. Therefore, the protective film 101 can be bonded to the display area 2 of the display 1 accurately and smoothly with a simple operation.

  In the present embodiment, by pressing the base film layer 111 toward the display 1 side in a state where the protrusion 115 is in contact with the display 1, the attachment member 114 made of an adsorbing sheet is elastically deformed, and the surface 114 a Can be adsorbed to the display 1. By using the adsorbing sheet, the protective film 101 can be positioned with an appropriate adsorbing force, and can be easily peeled off when peeling from the display 1, and no adhesive or the like remains on the display 1.

  In particular, in the present embodiment, the attachment member 114 is provided so as to extend in parallel with the short direction L2 of the base film layer 111. Therefore, when the surface 114a of the attachment member 114 is attached to the display 1, The shift | offset | difference of the protective film 101 to the transversal direction L2 generally easy to produce can be prevented effectively. Therefore, the protective film 101 can be more accurately bonded to the display area 2 of the display 1.

  However, after positioning the protective film 101, the part 112c of the peeling film layer 112 is peeled off, and the exposed adhesive layer 113 is not bonded to the display region 2, but the part 112c of the peeling film layer 112 is attached. The protective film 101 may be aligned after being previously peeled off. In this case, alignment is performed by moving the protective film 101 in a state where a part of the exposed adhesive layer 113 is separated from the display area 2 of the display 1.

  In addition, the configuration is not limited to the configuration in which the surface 114a of the adhesion member 114 is adhered to the display area 2 of the display 1, but the configuration is such that the surface 114a of the adhesion member 114 is adhered to a surface other than the display area 2 in the display 1. Also good. In this case, the adhesion member 114 may be fixed on the release film layer 112 in a region that does not face the base film layer 111 and the adhesive layer 113.

  Furthermore, the release film layer 112 is not limited to a configuration in which only one cut 116 is formed, but may be a configuration in which a plurality of the release film layers 112 are provided. In this case, for example, a pair of cuts 116 extending in parallel with each other are formed so as to extend in a straight line from one end edge 112a to the other end edge 112b of the release film layer 112, whereby the release film layer 112 is divided into three. It may be configured as shown. Thus, the number and position of the notches 116 can be set arbitrarily.

  Alternatively, the cut film 116 may not be formed in the release film layer 112, and the release film layer 112 may be cut and partially peeled off. In this case, the release film layer 112 is preferably formed of a material that can be easily cut, for example, a biaxially stretched film made of polypropylene as a raw material.

  FIG. 5 is a plan view for explaining a modified example of the protruding portion 115. In the above-described embodiment, the configuration in which the protrusions 115 are provided along the pair of long sides of the attachment member 114 has been described. However, the present invention is not limited to such a configuration, and the protrusions 115 may be provided in any other manner. Can do. At this time, the protrusion 115 is not limited to the configuration provided on the adhesion member 114, and may be a configuration provided on the release film layer 112 separately from the adhesion member 114.

  For example, in the example of FIG. 5A, a plurality of protrusions 115 extending in parallel to the short side of the attachment member 114 are provided on the attachment member 114 with a space therebetween. Thereby, the surface of the adhesion member 114 is exposed between the protrusions 115, and the surface can be adhered to the display 1. As described above, the number, shape, and position of the protrusions 115 provided on the attachment member 114 can be arbitrarily set.

  In the example of FIG. 5B, the protruding portion 115 is provided on the release film layer 112 separately from the adhesion member 114. Specifically, the adhesion member 114 extends in parallel to the short direction L2 of the base film layer 111 at a position corresponding to one end portion of the base film layer 111 in the longitudinal direction L1. The protrusions 115 are fixed on the release film layer 112 at positions spaced from the adhesion member 114 on both ends of the adhesion member 114 in the short side direction L2 of the base film layer 111.

  Thereby, the adhesion member 114 and the two protrusions 115 are arranged in a straight line along the short direction L <b> 2 of the base film layer 111. However, the number, shape, and position of the protrusions 115 provided on the release film layer 112 can be arbitrarily set. Further, the protruding portion 115 can be formed integrally with the release film layer 112.

  The adhesion member 114 and the protrusion 115 can be formed by punching, for example. That is, after another film layer is bonded onto the release film layer 112, the remaining part of the film layer is removed by punching and removing the part other than the part where the adhesion member 114 and the protruding part 115 are to be formed. The member 114 and the protrusion 115 can be formed. In this case, the adhering member 114 and the protruding portion 115 may be formed simultaneously by a single punching process, or the adhering member 114 and the protruding portion 115 may be formed in separate steps.

  In the above-described embodiment, the configuration in which the adhesion member 114 is formed of urethane foam has been described. However, the configuration is not limited to such a configuration, and the adhesion member 114 is formed by an adsorption sheet formed using another material such as acrylic or silicon. May be configured. In addition, instead of the suction sheet, the adhesion member 114 can be configured by, for example, an adhesive sheet. In this case, it is preferable to use a weakly adhesive type adhesive sheet having removability so that the adhesive does not remain on the display 1 when the adhesive member 114 is attached to the display 1 and then peeled off.

  Moreover, in the said embodiment, the structure which the adhesion member 114 elastically deforms by pressing the base film layer 111 to the display 1 side was demonstrated. However, the configuration is not limited to such a configuration, and the attachment member 114 is not elastically deformed, and the protrusion 114 is elastically deformed so that the surface 114a of the attachment member 114 contacts and adheres to the display 1. May be. Alternatively, neither the attachment member 114 nor the protrusion 115 is elastically deformed, and the base film layer 111 is bent by pressing the base film layer 111 toward the display 1 side, so that the surface 114a of the attachment member 114 is It may be attached to the display 1.

DESCRIPTION OF SYMBOLS 1 Display 2 Display area 101 Protective film 111 Base film layer 112 Peeling film layer 112a One end edge 112b Other end edge 113 Adhesive layer 114 Adhering member 114a Surface 115 Protruding part 115a Surface 116 Cutting

Claims (3)

A protective film for a display for protecting the display area of the display,
A base film layer covering the display area;
An adhesive layer formed on one surface of the substrate film layer;
A release film layer provided on the adhesive layer and peelable from the adhesive layer;
An adhesive member fixed to a part of the release film layer and attached in a peelable state to the display;
Provided on the adhesion member or on the release film layer, and a protruding portion protruding from the surface of the adhesion member;
The surface of the attachment member can be brought into contact with and attached to the display by pressing the base film layer toward the display in a state where the protrusion is in contact with the display. Protective film for display.   The protective film for a display according to claim 1, wherein the adhesion member is formed of an elastically deformable adsorption sheet and is adsorbed in a peelable state with respect to the display. The base film layer is formed in a rectangular shape,
The attachment member is provided at a position corresponding to one end portion in a longitudinal direction of the base film layer so as to extend in parallel with a short direction of the base film layer. 3. A protective film for display according to 1 or 2.

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