JP2013011699A - Display device protection plate and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device protection plate in which occurrence of level difference easy to cause a defective can be prevented.SOLUTION: A display device protection plate 1 is a protection plate 1 for protecting a display surface of a display device 13 and includes: a first transparent film 2; a printing layer 3 formed on one surface of the first transparent film 2; a transparent adhesive filled layer 4 formed on one surface of the first transparent film 2 so as to cover the printing layer 3; a second transparent film 5 adhered to a surface of the transparent adhesive filled layer 4 facing away from the first transparent film 2; and a transparent adhesive layer 6 formed on a surface of the second transparent film 5 facing away from the transparent adhesive filled layer 4. The transparent adhesive filled layer 4 is sandwiched between the first transparent film 2 and the second transparent film 5, so that level difference in the transparent adhesive filled layer 4 can be minimized.

Description

  The present invention relates to a protective plate for a display device that protects a display surface of the display device and a manufacturing method thereof.

  The display device is a device that displays an image, such as a liquid crystal display device, a plasma display device, or an organic EL (Electro Luminescence) device. A touch panel may be attached to the display surface of the display device. When this touch panel is attached to the display device, this touch panel is also a component of the display device.

  The display surface of the display device is the surface of a glass plate or the surface of a plastic film. In general, a thin plate-like member is referred to as a “film”, and a thick plate-like member is referred to as a “sheet”. The concept also includes a typical “sheet”.

(Conventional example with space)
Conventionally, when a transparent film, which is a main component of a protective plate for a display device (hereinafter sometimes simply referred to as a protective plate), and an LCD (Liquid Crystal Device) are bonded together, or the transparent film and a touch panel When pasting together, only the frame portion, which is the peripheral portion, may be pasted with double-sided tape.

  The structure thus formed is sometimes referred to as an air gap structure because the inside is a space. In this structure, there is a problem that the visibility of the display device is deteriorated due to the presence of the internal space (that is, the air layer).

(Conventional example with space filled with OCA)
In order to solve the above-described visibility problem, conventionally, as shown in FIG. 4A, a print layer 103 is formed on the surface of the transparent film 102 to form a decorative print film 108, and the decorative printing is performed. There is known a protective plate 101 for a display device in which an OCA (Optical Clear Adhesive) double-sided tape 106 is adhered to a film 108. The decorative print film 108 in FIG. 4A is attached to the surface of the display device 113, for example, the surface of a glass plate, by the OCA double-sided tape layer 106, as shown in FIG. 4B.

  In addition, in this specification, the sticking state which can be peeled manually is referred to as `` adhesion '', the sticking state which cannot be peeled manually is referred to as `` adhesion '', and the state of being attached regardless of the state is `` I will say "sticking".

  In this display device protection plate 101, there is no space between the display device 113 and the transparent film 102, and the transparent OCA double-sided tape layer 106 is provided over the entire surface. The visibility is improved as compared with the conventional device in which the space is between. However, in this conventional protective plate 101, when this is attached to the surface of the display device 113, the OCA double-sided tape layer 106 is adapted to the display device 113 by the thickness of the printing layer 103, thereby FIG. As shown in c), a step D <b> 1 occurred on the surface of the transparent film 102. When the step D1 occurs, the appearance of the surface of the display device 113 including the protective plate 101, for example, flatness is impaired.

  In order to eliminate or reduce the step D1, it is necessary to increase the thickness of the transparent film 102 or the OCA double-sided tape layer 106. However, if the transparent film 102 and the OCA double-sided tape layer 106 are thickened in this way, the entire display device 113 including the protective plate 101 has to be thickened.

  Further, by increasing the flexibility of the OCA double-sided tape layer 106, the occurrence of the step D1 can be prevented or reduced. However, in this case, there is a possibility that the OCA forming the OCA double-sided tape layer 106 protrudes from the side end, or external dust, dust, etc. adhere to the OCA and impair the appearance.

(Conventional example with space filled with transparent resin layer)
According to FIG. 5 of patent document 1, as shown in FIG. 5 of this application, it is not OCA but photocurability between the protective plate 112 formed with the transparent film and the flat panel display part 123 which is a display apparatus. There is disclosed a protective plate 111 for a display device provided with a transparent adhesive resin layer 114 made of a resin. The transparent adhesive resin layer 114 is bonded to the surface of the flat panel display unit 123 with a double-sided tape 116 after being cured by being irradiated with ultraviolet rays, for example.

  According to the display device protection plate 111, the formation of the step was expected to be eliminated by forming the transparent adhesive resin layer 114 from a highly fluid transparent adhesive resin. However, in practice, after applying the transparent adhesive resin 114 on the protective plate 112 and the printing layer 103, as shown in FIG. 5B, during the elapsed time until the transparent adhesive resin 114 is cured. Due to the surface tension, there is a phenomenon in which a step D2 occurs on the surface of the transparent resin layer 114 depending on where the printed portion is present or not in the printed layer 103 and does not become flat.

  Further, when such a step D2 occurs, foreign matter and bubbles are likely to be generated in the transparent adhesive resin layer 114. In this case, the display device protection plate 111 including the transparent adhesive resin layer 114 is defective. As a result, there is a risk of problems in productivity.

JP 2010-176111 A

  As described above, in the conventional protective plate for a display device, a step is generated in the OCA double-sided tape layer or the transparent adhesive resin layer depending on where the printed portion is present or not in the printed layer. And defects in characteristics occur, and as a result, there is a problem that mass productivity is lowered.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a protective plate for a display device and a method for manufacturing the same, which can prevent the occurrence of a step that easily leads to the occurrence of a defective product.

  The protective plate for a display device according to the present invention is a protective plate that protects the display surface of the display device, and includes a first transparent film, a printed layer formed on one surface of the first transparent film, A transparent adhesive filling layer formed on the one surface of the first transparent film so as to cover the printed layer, and a first adhesive paste on the surface of the transparent adhesive filling layer opposite to the first transparent film. It has 2 transparent films and the transparent adhesion layer formed on the surface on the opposite side to the said transparent adhesion filling layer of the said 2nd transparent film, It is characterized by the above-mentioned.

  In the conventional protective plate for a display device, since a film corresponding to the second transparent film is not used, the transparent adhesive filling layer is caused by the thickness of the printed layer when the transparent adhesive filling layer is cured. There was a difference in level. On the other hand, in the protective plate for a display device according to the present invention, since the transparent adhesive filling layer is sandwiched between the first transparent film and the second transparent film, a step is formed on the transparent adhesive filling layer when the transparent adhesive filling layer is cured. Can be prevented.

In the protective plate for a display device according to the present invention, the transparent adhesive filling layer may be formed of a photocurable resin.
The photocurable resin tends to shrink during curing and cause a step. However, in the present invention, since the transparent adhesive filling layer is sandwiched between the first transparent film and the second transparent film, a step is hardly generated. That is, the present invention functions particularly effectively when the transparent adhesive filling layer is formed of a photocurable resin. )

In the protective plate for a display device according to the present invention, the first transparent film and the second transparent film can be formed of a polyester resin.
If a polyester resin is used, the film can be easily formed to a thickness of 0.3 mm or less. If the thickness is 0.3 mm or less, the thickness of the protective plate for display device can be reduced. If the thickness is reduced, a step due to the printed layer is likely to occur. However, if the second transparent film is used as in the present invention, the occurrence of the step can be prevented.

In the protective plate for a display device according to the present invention, the first transparent film and the second transparent film can be formed of polyethylene terephthalate.
If the first transparent film or the like is made of polyethylene terephthalate, the first transparent film or the like can be easily formed to a thickness of 0.3 mm or less.

  Next, a manufacturing method of a protective plate for a display device according to the present invention is a manufacturing method for manufacturing a protective plate that protects a display surface of a display device, and a printing layer is formed on a first transparent film. The decorative printed film is drawn out from the state wound in a roll shape, and the adhesive film tape formed by forming a transparent adhesive layer on the second transparent film is drawn out from the state wound in a roll shape and drawn out. The printed film and the adhesive film tape drawn out are bonded together with a transparent adhesive filler, and after the bonding, the transparent adhesive filler is cured to form a protective plate, and the protective plate is wound into a roll Features.

  According to the method for manufacturing a display device protection plate according to the present invention, the display device protection plate having the above-described configuration can be manufactured stably and accurately. Furthermore, since the work is performed with tension between the rolls, the protective plate for the display device can be stabilized even when the first transparent film and the second transparent film are as thin as 0.3 mm or less. And can be manufactured accurately.

  In the method for manufacturing a protective plate for a display device according to the present invention, the transparent adhesive filler can be a photocurable resin, and the transparent adhesive filler can be cured by light irradiation. This configuration is suitable for a manufacturing method in which processing is performed between rolls, that is, a roll-to-roll manufacturing method.

  In the conventional protective plate for a display device, since the film corresponding to the second transparent film in the present invention was not used, the transparent adhesive filling caused by the thickness of the printed layer when the transparent adhesive filling layer was cured There was a step in the layer. On the other hand, in the protective plate for a display device according to the present invention, since the transparent adhesive filling layer is sandwiched between the first transparent film and the second transparent film, a step is formed on the transparent adhesive filling layer when the transparent adhesive filling layer is cured. Can be prevented.

  According to the method for manufacturing a protective plate for a display device according to the present invention, the protective plate for a display device according to the present invention can be manufactured stably and accurately. Further, since the film structure to be processed is operated while applying tension between the rolls, even when the thickness of the first transparent film and the second transparent film is as thin as 0.3 mm or less, the display device Can be manufactured stably and accurately.

1 shows an embodiment of a protective plate for a display device according to the present invention, wherein (a) is a longitudinal sectional view and (b) is a plan view. It is a side view which shows the manufacturing apparatus which can implement | achieve the manufacturing method of the protective plate for display apparatuses which concerns on this invention. It is a figure which shows the film structure in the principal part of the manufacturing apparatus of FIG. 2 planarly. It is sectional drawing which shows an example of the protection plate for conventional display apparatuses. It is sectional drawing which shows another example of the conventional protective plate for display apparatuses.

(Embodiment of protective plate for display device)
Hereinafter, a protective plate for a display device according to the present invention will be described based on embodiments. Of course, the present invention is not limited to this embodiment. In addition, in the drawings attached to the present specification, components may be shown in different ratios from actual ones in order to show characteristic parts in an easy-to-understand manner.

  FIG. 1 shows a cross-sectional structure of an embodiment of a protective plate for a display device according to the present invention. A protective plate 1 for a display device according to this embodiment includes a transparent adhesive layer 6 such as a first transparent film 2, a printed layer 3, a highly transparent adhesive filling layer 4, a second transparent film 5, an OCA double-sided tape layer, and the like. And have. The first transparent film 2 and the print layer 3 constitute a decorative print film 8. The second transparent film 5 and the adhesive layer 6 constitute an adhesive film tape 9. The protective plate 1 for display device is stuck on the display surface of the display device 13 by the adhesive layer 6.

  The display device 13 is, for example, a liquid crystal display device, a plasma display device, an organic EL device, or the like. When a touch panel is attached, the display device 13 is a device including a touch panel. An optical film, glass or the like is disposed on the surface of the display device 13.

  In the present specification, the adhesive filling layer 4 may be referred to as “adhesive filler 4”. The adhesive layer 6 may be referred to as “adhesive material 6”. The OCA double-sided tape layer may be referred to as “OCA double-sided tape”.

  The protective plate 1 for a display device is formed by adhering a decorative printing film 8 and an adhesive film tape 9 with an adhesive filler 4 and integrating them. As a result of the above configuration, the adhesive filling layer 4 is sandwiched between the first transparent film 2 and the second transparent film 5. The adhesive filler 4 forming the adhesive filler layer 4 is made of a photocurable resin.

  The first transparent film 2 is made of, for example, polyethylene terephthalate that is a polyester resin. The printing layer 3 is printed on the surface of one side (lower side of FIG. 1) of the first transparent film 2 by, for example, a screen printing method. As shown in FIG. 1B, the print layer 3 includes a black region 11 formed in a frame shape and a transparent region 12 surrounded by the black region 11 when viewed in plan. An image displayed on the display surface of the display device 13 is visually recognized from the outside through the transparent region 12.

  The print layer 3 may be a single layer (that is, one layer) or a plurality of layers. When the print layer 3 has no pattern or the pattern is simple, the print layer 3 can be a single layer. In addition, when the printing layer 3 has a plurality of colors or has a complicated pattern, the printing layer 3 can be a plurality of layers.

  An adhesive material 6 is adhered to one surface of the second transparent film 5. The second transparent film 5 is made of, for example, polyethylene terephthalate that is a polyester resin. The adhesive material 6 is a coreless tape that is formed only of an adhesive and does not have a base material. As the adhesive, for example, an acrylic adhesive, a urethane adhesive, a silicone adhesive, a rubber adhesive, or a polyether adhesive is used.

  In the present embodiment, the first transparent film 2 and the second transparent film 5 are formed thin. In general, when a film is formed of an acrylic resin, polycarbonate, or the like, the thickness of the film often exceeds 0.3 mm. On the other hand, in this embodiment, the film 2 and the film 5 are formed of polyethylene terephthalate, so that the thicknesses of the films 2 and 5 are set to 0.3 mm or less, preferably 0.2 mm or less. When polyethylene terephthalate is used, it is easy to make the film thickness 0.3 mm or less.

Specific dimensions of each element are set as follows, for example.
First transparent film 2: 55 μm
Print layer 3: 20 μm
Adhesive filling layer 4 (upper part from the printing layer 3): 5 μm
Adhesive film tape 9: 35-50 μm
The total thickness is 115-130 μm.
As is clear from these dimensions, the protective plate 1 for the display device of the present embodiment is set to be very thin, and therefore the entire thickness of the display device 13 including the protective plate 1 is very thin. ing.

  When the adhesive resin layer 114 is attached to only one transparent film 112 as in the conventional protective plate 111 for a display device shown in FIG. 5A, as indicated by reference numeral D2 in FIG. 5B. A step is formed due to the surface tension. On the other hand, in the present embodiment shown in FIG. 1A, both the front and back surfaces of the adhesive filling layer 4 are adhered to the first transparent film 2 and the second transparent film 5, respectively. 2 and 5 are sandwiched. For this reason, there is no occurrence of a step in the adhesive filling layer 4 corresponding to where the printed portion is present and where the printed portion is absent. As a result, it is possible to prevent the appearance defect and the characteristic defect of the protective plate 1 for the display device from occurring, and as a result, the mass productivity can be maintained high.

(Other embodiment about the protective plate for display devices)
The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the embodiments, and various modifications can be made within the scope of the invention described in the claims.

  For example, in the embodiment shown in FIG. 1, the first transparent film 2 is a single resin film made of polyethylene terephthalate. Instead, a hard coat layer is formed on the surface of the single resin film. It can also be set as a film.

  In the embodiment, the first transparent film 2 is a single film, and the thickness of the single film is set to 55 μm. However, the thickness of the first transparent film 2 can be set to an arbitrary value of 0.3 mm or less, preferably 0.2 mm or less. When the 1st transparent film 2 contains a hard-coat layer, the thickness of the film used as a base material can be set to 0.3 mm or less, Preferably it is 0.2 mm or less.

  In said embodiment, although the 1st transparent film 2 and the 2nd transparent film 5 were formed with the polyethylene terephthalate, these films 2 and 5 have the adhesiveness with the adhesive filler 4 that it can form thinly. A plastic other than polyethylene terephthalate can be used as long as it satisfies the requirements of being good.

(Embodiment of manufacturing method of protective plate for display device)
Next, a manufacturing method for manufacturing the protective plate 1 for display device shown in FIG. 1 will be described. FIG. 2 schematically shows an embodiment of a manufacturing apparatus for realizing the manufacturing method.

  This manufacturing apparatus includes a decorative print film feeding stage 16, a transparent adhesive filler coating stage 17, an adhesive film tape feeding stage 18, a film laminating stage 19, and a transparent adhesive filler curing stage 20. And a film winding stage 21.

  A decorative printing film 8 wound in a roll shape is placed on the feeding stage 16 of the decorative printing film. The decorative print film 8 is a film in which a print layer 3 is formed on a first transparent film 2 made of polyethylene terephthalate or the like, as shown in FIG. The roll-shaped decorative printing film 8 is obtained by, for example, linearly feeding the first transparent film 2 from the roll-shaped first transparent film 2 and performing screen printing on the linear first transparent film 2. It can form by forming the printing layer 3, forming the decorative printing film 8, and winding up the decorative printing film 8 in roll shape.

  The transparent adhesive filler application stage 17 includes various components such as a tank 24 storing a transparent adhesive filler 4 that is a photocurable resin, a first transfer roll 25, a second transfer roll 26, and a feed roll 27. It is included. A doctor blade 28 for regulating the thickness of the adhesive filler taken out on the outer peripheral surface of the first transfer roll 25 is provided at an appropriate position around the first transfer roll 25. The distance K1 between the second transfer roll 26 and the feed roll 27 is set to plus 10 μm to 100 μm with respect to the thickest part of the decorative print film to be introduced.

  An adhesive film tape 9 wound in a roll shape is placed on the feeding stage 18 of the adhesive film tape. The adhesive film tape 9 is a transparent adhesive film tape in which an adhesive layer 6 is formed on one side of a second transparent film 5 made of polyethylene terephthalate or the like, as shown in FIG.

  The film laminating stage 19 is provided with a first leveling roll 31 and a second leveling roll 32. The distance K2 between the first leveling roll 31 and the second leveling roll 32 is set to be lower than the thickest portion obtained by adding all of the input materials. The adhesive film tape 9 fed out from the roll-shaped adhesive film tape 9 is wound around the outer peripheral surface of the first leveling roll 31.

  The curing stage 20 of the transparent adhesive filler is provided with an illumination device, specifically a lamp, more specifically a UV (ultraviolet) lamp 33. The film winding stage 21 is provided with a winding roll 34. The film structure in which the adhesive filler 4 is cured by receiving the light irradiation from the UV lamp 33, that is, the display device protection plate 1 is wound into a roll shape by the winding roll 34.

  As is clear from the above, in the manufacturing method of the present embodiment, the film fed from each of the roll-shaped film material 8 and the roll-shaped film material 9 undergoes a predetermined treatment and is then wound on the winding roll 34. The film material is conveyed in accordance with a so-called roll-to-roll conveyance structure.

  Hereinafter, the operation of the manufacturing apparatus of the protection plate for a display device having the above configuration will be described. In addition, (A), (B), (C), and (D) of FIG. 3 each show a planar configuration of the film structure in the portions indicated by arrows A, B, C, and D in FIG. . In the following description, FIG. 3 is referred to as necessary.

  In the part A of FIG. 2, the decorative printing film 8 is drawn out linearly from the roll-shaped decorative printing film 8 (see FIG. 3A). The transparent adhesive filler 4 is coated, that is, applied to the surface of the fed decorative print film 8 on the printing layer 3 side by the second transfer roll 26 (see part B of FIG. 2: FIG. 3B). Thereby, the transparent adhesive filler 4 is filled in the step formed on the surface of the first transparent film 2 by the printing layer 3. The application height of the transparent adhesive filler 4 is controlled to be constant by the inter-roll interval K1.

  Thereafter, the decorative printing film 8 is conveyed to the film laminating stage 19. In the film laminating stage 19, the adhesive film tape 9 sent out from the feeding stage 18 of the adhesive film tape is filled with the transparent printed film 8 by the cooperation of the first leveling roll 31 and the second leveling roll 32. Adhering, that is, laminating on the surface on the material 4 side (part C in FIG. 2; see FIG. 3C). At this time, the thickness of the entire film is controlled to be constant by the laminating pressure of the inter-roll interval K2.

  The laminated film body formed as described above is then conveyed to the curing stage 20 of the transparent adhesive filler. In the curing stage 20, the ultraviolet light emitted from the UV lamp 33 is irradiated to the laminated film body from the adhesive film tape 9 side. As a result, the transparent adhesive filler 4 is cured, and the decorative printing film 8 and the adhesive film tape 9 are integrated. Thereby, the protective plate 1 for display devices is formed (refer to part D of FIG. 2: FIG. 3D). The protection plate 1 formed in this way is taken up by a take-up roll 34. A separator, that is, a release film is attached to the outer surface of the adhesive material 6 of the adhesive film tape 9.

  In the above processing, the transparent adhesive filler 4 is coated on the central portion in the plane area of the print layer 3 by an amount sufficient to cover the print layer 3 in a plane by the second transfer roll 26, that is, the roll coater. Then, the transparent adhesive filler 4 is pressed through the decorative printing film 8 and the adhesive film tape 9 by the first leveling roll 31 and the second leveling roll 32 facing each other at a constant interval K2. Thereby, the transparent adhesive filler 4 is pushed out from the central portion, and as a result, the transparent adhesive filler 4 is formed as thin as possible.

  In the present embodiment, since the transparent adhesive filler 4 is cured by UV irradiation in the resin curing stage 20 immediately after each layer is laminated by the film laminating stage 19, the mass productivity and stability are improved.

  In the present embodiment, since the film is conveyed in a roll-to-roll manner, the coating of the transparent adhesive filler 4, the lamination of each film element, the thickness adjustment of the film structure, and the transparent adhesive filler 4 A series of curing treatments can be performed on one line, and an appropriate tension can be applied to the film structure during various treatments, thus generating foreign matter and bubbles. Can be prevented.

  In the present embodiment, even if there is a variation in the thickness of the material of each component by adjusting the distance and the pressure of the thickness K2 (see FIG. 2) by the first leveling roll 31 and the second leveling roll 32, The total thickness of the display device protection plate 1 after passing through the first leveling roll 31 and the second leveling roll 32 can be managed to be constant, and as a result, the display device protection plate 1 having stable performance. Can be manufactured.

  In the present embodiment, the adhesive 6 attached to the surface of the display device 13 is also configured as an adhesive film tape 9 by previously applying an adhesive to the second transparent film 5. The viscosity can be suppressed, and as a result, it is possible to effectively suppress the protrusion of the adhesive layer 6 from the end face and the adhesion of dust, dust, and the like.

  In the conventional protective plate for a display device, the adhesive film tape 9 has not been used. Therefore, the surface tension acts due to the viscosity of the transparent adhesive filler 4 until the transparent adhesive filler 4 is cured, and the printed portion and the non-printed portion in the printing layer 3 In some cases, a difference in level was generated in the adhesive filler 4. On the other hand, in this embodiment, while the transparent adhesive filler 4 is cured by UV irradiation, the adhesive filler 4 is supported by being adhered to the second transparent film 5 in the adhesive film tape 9. There is no step in the filler 4. For this reason, generation | occurrence | production of a level | step difference can be prevented even if the adhesive filler 4 is made thin.

  Further, in the conventional protective plate for a display device, it is necessary to increase the thickness of the transparent adhesive filler 4 in order to prevent the transparent adhesive filler 4 from being stepped. When it is necessary to further increase the height of the printed portion of the printed layer 3 in order to meet customer needs, the height of the transparent adhesive filler 4 is further increased to prevent the occurrence of a step. In this case, the thickness of the protective plate 1 for the display device is further increased, and the demand for thinning cannot be met. On the other hand, in this embodiment, since the adhesive filler 4 is supported by the second transparent film 5 in the adhesive film tape 9, it is possible to prevent the adhesive filler 4 from being stepped. As a result, the adhesive filler 4 The thickness of can be reduced. As a result, the decorative printing film 8 and thus the protective plate 1 for display device can be made thin.

(Other embodiment of manufacturing method of protective plate for display device)
The manufacturing method of the present invention has been described with reference to the preferred embodiments. However, the manufacturing method of the present invention is not limited to the embodiments, and various modifications can be made within the scope of the invention described in the claims. .

1. 1. Protection plate for display device, 2. a first transparent film; Printed layer, 4. 4. Transparent adhesive filler (transparent adhesive filler layer), Second transparent film, 6. 7. transparent adhesive layer; Decorative print film, 9. 10. adhesive film tape, Black area, 12. 12. transparent area; Display device, 16. 16. A feeding stage for a decorative printing film; 17. Application stage of transparent adhesive filler, 18. Adhesive film tape feeding stage; Film laminating stage, 20. 20. Curing stage of transparent adhesive filler, Film winding stage, 24. Tank, 25. First transfer roll, 26. Second transfer roll, 27. Feeding roll, 28. Doctor blade, 31. First leveling roll, 32. Second leveling roll, 33. UV lamp, 34. Winding roll, D1, D2. Steps, K1, K2. Inter-roll spacing

Claims (6)

A protective plate for protecting the display surface of the display device,
A first transparent film;
A printed layer formed on one surface of the first transparent film;
A transparent adhesive filling layer formed on the one surface of the first transparent film so as to cover the print layer;
A second transparent film stuck on the surface of the transparent adhesive filling layer opposite to the first transparent film;
A transparent adhesive layer formed on a surface opposite to the transparent adhesive filling layer of the second transparent film;
A protective plate for a display device, comprising:   The protective plate for a display device according to claim 1, wherein the transparent adhesive filling layer is formed of a photocurable resin.   3. The display device protection plate according to claim 1, wherein the first transparent film and the second transparent film are made of a polyester resin.   4. The protective plate for a display device according to claim 3, wherein the first transparent film and the second transparent film are polyethylene terephthalate. A manufacturing method for manufacturing a protective plate for protecting a display surface of a display device,
A decorative printing film formed by forming a printing layer on the first transparent film is drawn out from the rolled state,
A pressure-sensitive adhesive film tape formed by forming a transparent pressure-sensitive adhesive layer on the second transparent film is drawn out from the rolled state,
The decorative print film that has been drawn out and the adhesive film tape that has been drawn out are bonded together with a transparent adhesive filler,
After the bonding, the transparent adhesive filler is cured to form a protective plate,
A method of manufacturing a protective plate for a display device, wherein the protective plate is rolled up.   6. The method of manufacturing a protection plate for a display device according to claim 5, wherein the transparent adhesive filler is a photocurable resin, and the transparent adhesive filler is cured by light irradiation.

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