JP2017122858A - Protective sheet, insulating film, and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of preventing coming-off of a second component from a connection part of a first component, and also suppressing an increase in manufacturing costs.SOLUTION: A protective sheet 1 comprises: a sheet main body part 2 covering a circuit board 11, a connector 12, and a root part of a cable 13; adhesive parts 5b, 5c, and 6 which are arranged on a rear surface side of the sheet main body part 2 and can fix the sheet main body part 2 to a rear frame 10; and an adhesive part 5a which is arranged on the rear surface side of the sheet main body part 2 and can fix a cable 13 to the rear frame 10. The sheet main body part 2 is fixed to the rear frame 10 by the adhesive parts 5b, 5c, and 6 in a state in which it covers the circuit board 11 and the connector 12. The cable 13 is fixed to the rear frame 10 by the adhesive part 5a in a state in which it is connected to the connector 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a display device, and particularly to a technique for preventing a cable connected to a connector mounted on a circuit board of the display device from being disconnected.

  A liquid crystal display device includes a circuit board for display, a cable such as FFC (Flexible Flat Cable) or FPC (Flexible Printed Circuits) for inputting a signal to the circuit board, a connector for connecting the cable and the circuit board, and the like. It has. The connector connection between the cable and the circuit board must be prevented from being easily disconnected even when an external force is applied.

  For example, Patent Document 1 discloses a structure in which a circuit board and a part of a flexible wiring board are accommodated in a housing, and another part of the flexible wiring board is drawn out from a slit formed in the housing.

JP 2011-13605 A

  As one of the conventional measures for preventing the cable from coming off, it is known to attach and fix the cable with a separate adhesive tape. In addition, a protective sheet may be disposed on the circuit board to protect the circuit board. An adhesive part is provided on a part of the protective sheet, and the adhesive part of the protective sheet is provided on the circuit board or in a part other than the circuit board. Use to place the protective sheet. When the connection between the cable and the connector is performed in a later process than the fixing of the protective sheet, an opening is formed at a position corresponding to the connector in the protective sheet, and the cable and the connector are connected via the opening to prevent the cable and the connector from coming off. Affixed with adhesive tape for use.

  In this structure, the adhesive tape for preventing the removal is required as a separate part, which causes an increase in the number of parts and forgetting to attach the adhesive tape.

  The technique described in Patent Document 1 does not require a pressure-sensitive adhesive tape for preventing removal, but has a problem that the manufacturing cost increases because the structure is complicated.

  Therefore, the present invention has an object to provide a technique that can prevent the second component from coming off from the connection portion of the first component and can suppress an increase in manufacturing cost. And

  The protective sheet according to the present invention includes a first component disposed on the fixed object, a connection portion mounted on the first component, and a root of the second component connected to the connection portion. On the back side of the sheet main body part, and on the back side of the sheet main body part, the first adhesive part that can be fixed to the fixed object. And a second adhesive part that can be fixed to the object to be fixed, and the sheet body part covers the first component part and the connection part. It is fixed to the fixed object by the first adhesive part, and the second component is fixed to the fixed object by the second adhesive part in a state of being connected to the connection part. .

  According to the present invention, the protective sheet is disposed on the back side of the sheet main body portion, the first pressure-sensitive adhesive portion capable of fixing the sheet main body portion to the fixed object, and the sheet main body portion. A second adhesive part arranged on the back surface side and capable of fixing the second component to a fixed object, and the sheet main body part is in a state of covering the first component and the connection part. The second component is fixed to the fixed object by the second adhesive part in a state of being connected to the connection part.

  Accordingly, it is possible to prevent the second component from coming off from the connection portion of the first component. Moreover, since the structure of the protective sheet is simple, an increase in manufacturing cost can be suppressed.

3 is a perspective view of a protective sheet according to Embodiment 1. FIG. 3 is a front view of the protective sheet according to Embodiment 1. FIG. It is a front view of the protective sheet which concerns on the modification 1 of Embodiment 1. FIG. It is a front view of the protection sheet which concerns on the modification 2 of Embodiment 1. FIG. 6 is a front view of a protective sheet according to Embodiment 2. FIG. It is a front view of the protection sheet which concerns on the modification of Embodiment 2. 6 is a front view of an insulating film according to Embodiment 3. FIG. 10 is a front view of an insulating film according to a modification of Embodiment 3. FIG. It is a perspective view of the protection sheet which concerns on a premise technique.

<Embodiment 1>
<Display device>
Embodiment 1 of the present invention will be described below with reference to the drawings. Initially, the outline | summary of a display apparatus provided with the protection sheet 1 (refer FIG. 1) is demonstrated.

  The display device includes a planar light source device, a front frame, a display panel, a circuit board, a protective sheet, and a cable. The display panel is, for example, a liquid crystal display panel. The circuit board is disposed on the back surface (rear frame) of the planar light source device. The protective sheet is a member that protects the circuit board and will be described in detail later. The cable is a member connected to a connector mounted on the circuit board, and is, for example, FFC or FPC.

  The planar light source device includes a light source, a light guide plate, an optical sheet, a reflective sheet, a middle frame, and a rear frame. The light guide plate emits light from the light source in a planar shape. The optical sheet is disposed on the light emitting surface side of the light guide plate, and diffuses and controls the light of the light guide plate. The reflection sheet is disposed on the side opposite to the light emitting surface of the light guide plate, and makes the light emitted from the light guide plate enter the light guide plate again. The middle frame and the rear frame are members that hold the light source, the light guide plate, the optical sheet, and the reflection sheet. The middle frame is disposed on the light exit surface side, and the rear frame is disposed on the light exit surface side.

<Light guide plate>
The light guide plate is made of a material such as transparent acrylic resin, polycarbonate resin, or glass. Further, a light scattering portion that disturbs the light propagation direction and guides the light from the light emitting surface in the direction of emitting light is formed on the side opposite to the light emitting surface of the light guide plate. The light scattering portion functions as a means for reflecting light toward the inside of the light guide plate. As a means for reflecting, there are a method of dot printing on the light emitting surface, a method of roughening the light emitting surface to form a textured surface, a method of forming a minute spherical surface or unevenness, and the like.

<Optical sheet>
The optical sheet disposed on the light exit surface side of the light guide plate can be disposed in combination with a lens sheet or a diffusion sheet. Further, an optical sheet having a structure in which a lens sheet is sandwiched between diffusion sheets may be employed. Further, as an optical sheet, a plurality of lens sheets in which the directions of prisms are optimally combined to improve luminance may be adopted. Furthermore, when improving the diffusibility of a diffusion sheet, you may employ | adopt two or more diffusion sheets. Further, only one diffusion sheet may be provided or may be omitted.

<Reflection sheet>
As a reflection sheet, a material in which barium sulfate or titanium oxide is mixed with polyethylene or polyethylene terephthalate, a material in which fine bubbles are formed in a resin, a material in which silver is vapor-deposited on a metal plate, or a metal plate A material coated with a paint containing titanium oxide is employed. The reflectance of the reflection sheet is desirably 90% or more in order to suppress reflection loss on the reflection surface, and a material that performs specular reflection may be employed as the reflection sheet. By arranging the reflection sheet, the light emitted from the light guide plate can be directed again to the light guide plate and incident on the light guide plate, so that the light utilization efficiency can be improved.

<Display panel>
As the display panel, a liquid crystal display panel using the birefringence of a liquid crystal material, a display plate on which characters or pictures are printed on a transparent plate, or the like is employed. A liquid crystal display panel includes a color filter substrate on which a color filter, a light shielding layer, a counter electrode, and the like are formed on a substrate, a thin transistor (hereinafter referred to as TFT) serving as a switching element on the substrate, and a pixel electrode The TFT substrate on which etc. are formed is arranged so as to face each other. The liquid crystal display panel aligns the liquid crystal material sandwiched between the color filter substrate and the TFT substrate, the spacer for holding the distance between the substrates, the seal material for bonding the color filter substrate and the TFT substrate, and the liquid crystal. An alignment film and a polarizing plate are further provided. The liquid crystal display panel controls the orientation of the liquid crystal layer by turning on or off the voltage by the switching element, and modulates the light incident on the liquid crystal display panel in accordance with the video signal for display. In addition to the TN mode, in which a liquid crystal display panel applies a substantially vertical electric field to the color filter substrate and the TFT substrate for display, a switching element and a counter electrode are arranged on the TFT substrate to apply an electric field in the horizontal or oblique direction. There is an In-Plane Switching type to be applied, or a Ringe Filled Switching type.

<Protective sheet>
Next, details of the protective sheet 1 will be described. FIG. 1 is a perspective view of the protective sheet according to Embodiment 1, and FIG. 2 is a front view of the protective sheet 1.

  As shown in FIGS. 1 and 2, the protective sheet 1 protects a circuit board 11 (first component) disposed on a rear frame 10 (fixed object) that constitutes the back surface of the planar light source device. The rear frame 10 is disposed and fixed so as to cover the circuit board 11. The protective sheet 1 includes a sheet main body part 2, an opening / closing part 3, adhesive parts 5b, 5c, 6 and an adhesive part 5a.

  The seat body 2 includes a circuit board 11 disposed on the rear frame 10, a connector 12 (connection part) mounted on the circuit board 11, and a cable 13 (second component) connected to the connector 12. It is formed in a shape that can cover the part. An adhesive portion 5 a capable of fixing the cable 13 to the rear frame 10 is disposed on the back side of the central portion in the width direction at one end portion in the longitudinal direction of the sheet main body portion 2. Adhesive portions 5b and 5c capable of fixing the sheet main body 2 to the rear frame 10 are disposed on the back surfaces of both ends in the width direction at one end in the longitudinal direction of the sheet main body 2. An adhesive portion 6 capable of fixing the sheet main body 2 to the rear frame 10 is disposed on the back side of the other end in the longitudinal direction of the sheet main body 2. The adhesive portions 5b, 5c, and 6 correspond to the first adhesive portion, and the adhesive portion 5a corresponds to the second adhesive portion.

  Two slits 4 extending in the longitudinal direction are formed at one end in the longitudinal direction of the sheet main body 2 at a predetermined interval. The adhesive portion 5 a is disposed between the two slits 4, and the adhesive portions 5 b and 5 c are disposed from the two slits 4 to the width direction end of the sheet main body portion 2. The base end of the slit 4 is formed at substantially the same position as the other end of the connector 12 mounted on the front surface side of the circuit board 11. The opening / closing part 3 is formed by two slits 4 and is opened and closed by lifting a region surrounded by the two slits 4 with the base ends of the two slits 4 as an axis.

  The sheet body 2 may be a flexible material that can be opened and closed by the opening / closing unit 3. For example, a PET film is used as the sheet body 2. Further, in order to electrically insulate the circuit board 11, an insulating film obtained by subjecting the film to an antistatic treatment can also be employed. For example, a double-sided tape is employed as the adhesive portions 5b, 5c, and 6, and the sheet body 2 is fixed to the rear frame 10 by the adhesive force of the double-sided tape. For example, a double-sided tape is used as the adhesive part 5a disposed in the opening / closing part 3, and one side of the double-sided tape is attached to the opening / closing part 3, and a release paper (not shown) is attached to the other side of the double-sided tape. ing. The release paper protects the adhesive portion 5a so that the adhesive performance can be maintained without dust or the like adhering to the adhesive surface, and is composed of a substrate such as paper or PET film, a release layer in contact with the adhesive surface, and the like. ing.

  Next, a method for fixing the protective sheet 1 will be described. First, the sheet main body 2 is fixed to the rear frame 10 by the adhesive portions 5 b, 5 c, 6 while covering the circuit board 11 and the connector 12. Next, the opening / closing part 3 is opened and the cable 13 is connected to the connector 12. The release paper of the adhesive portion 5a is removed, and the cable 13 is fixed to the rear frame 10 by the adhesive portion 5a while being connected to the connector 12.

  Next, effects obtained from the protective sheet 1 according to Embodiment 1 will be described in comparison with the base technology. FIG. 9 is a perspective view of the protective sheet 102 according to the base technology. First, the protection sheet 102 according to the base technology will be described.

  First, as shown in FIG. 9, the protective sheet 102 is fixed to the rear frame 10 by the adhesive portions 105 and 106 while covering the circuit board 11. Since the connection between the cable 13 and the connector 12 is a later process than the fixing of the protective sheet 102, an opening 102a is formed at a position corresponding to the connector 12 in the protective sheet 102, and the cable 13 and the connector 13 are connected via the opening 102a. After the connector 12 is connected, it is fixed with an adhesive tape 107 for preventing it from coming off. In the protective sheet 102 according to the base technology, the adhesive tape 107 for preventing the separation is required as a separate part, which causes an increase in the number of parts and forgetting to attach the adhesive tape 107.

  On the other hand, in the protective sheet 1 according to the first embodiment, the protective sheet 1 is disposed on the back side of the sheet body 2 and the sheet body 2, and the sheet body 2 is attached to the rear frame 10. An adhesive portion 5b, 5c, 6 that can be fixed, and an adhesive portion 5a that is arranged on the back side of the sheet main body 2 and that can fix the cable 13 to the rear frame 10 are provided. 11 and the connector 12 are covered and fixed to the rear frame 10 by the adhesive portions 5b, 5c and 6, and the cable 13 is fixed to the rear frame 10 by the adhesive portion 5a while being connected to the connector 12. In addition, the display device according to Embodiment 1 includes a protective sheet 1, a circuit board 11 on which a connector 12 is mounted, a cable 13, and a rear frame 10.

  Accordingly, it is possible to prevent the cable 13 from being disconnected from the connector 12 of the circuit board 11. Moreover, since the structure of the protective sheet 1 is simple, an increase in manufacturing cost can be suppressed.

  Since the protective sheet 1 further includes an opening / closing part 3 that can open and close an area where the adhesive part 5a in the sheet main body part 2 is disposed, the cable 13 and the connector 12 are connected after the protective sheet 1 is fixed to the rear frame 10. In this case, the opening / closing part 3 can be opened to easily perform the connection work.

  Moreover, since the opening / closing part 3 has a shape capable of covering the connector 12, there is an effect that it is difficult for problems such as an electrical short circuit (short circuit) to occur.

  Moreover, it is possible to produce the protective sheet 1 at the same price as the protective sheet 102 not provided with the opening / closing part by simultaneously producing the adhesive parts 5a, 5b, 5c and 6. Conventionally, the adhesive tape 107 for preventing the cable 13 from coming off as a separate part can be substituted by the adhesive function of the adhesive part 5a disposed in the opening / closing part 3, so that the number of parts can be reduced.

  Note that the connection portion mounted on the circuit board 11 as the first component is not limited to the connector 12 but may be a connection pad such as a solder connection.

  Next, a modification of the first embodiment will be described. FIG. 3 is a front view of the protective sheet 21 according to the first modification of the first embodiment, and FIG. 4 is a front view of the protective sheet 31 according to the second modification of the first embodiment. Note that the cable 13 is not shown, and the same applies to the subsequent drawings.

  As shown in FIG. 3, the adhesive portions 25 a and 25 b are disposed at positions facing the connector 12. That is, the adhesive portions 25a and 25b are formed wider so as to be closer to the connector 12 than in the case of FIG. The adhesive portions 25a and 26 are for fixing the seat body portion 2 to the rear frame 10 and correspond to a first adhesive portion. The adhesive portion 25b is for fixing the cable 13 to the rear frame 10, and corresponds to a second adhesive portion. The slit 24 is formed in a U-shape, and the base end of the slit 24 is formed at substantially the same position as the other end of the connector 12 mounted on the surface side of one end side of the circuit board 11. By cutting the sheet body portion 2 into a U shape and forming the opening / closing portion 23, the protective sheet 21 can be manufactured at a price equivalent to that of the conventional protective sheet 102 (see FIG. 9).

  In this structure, compared with the structure of FIG. 2 and FIG. 3, the release paper of the adhesion part 25a in the both sides of the opening-and-closing part 23 can be removed at once, and workability | operativity improves. Moreover, about the area of the adhesion part 25a, the magnitude | size equivalent to the case of a premise technique is securable.

  Further, as shown in FIG. 4, one slit 34 extending in the longitudinal direction may be formed in the central portion in the width direction at one end portion in the longitudinal direction of the sheet main body 2. The connector 12 is disposed on the side of the slit 34 at one end of the circuit board 11. An opening / closing part 33 is formed by the slit 34. The adhesive portions 35a and 36 are for fixing the seat body 2 to the rear frame 10 and correspond to a first adhesive portion. The adhesive part 35b fixes the cable 13 to the rear frame 10, and corresponds to a second adhesive part. In this case, the same effect as in the case of FIGS. 1 and 2 can be obtained.

<Embodiment 2>
Next, the protection sheet 41 according to Embodiment 2 will be described. FIG. 5 is a front view of the protective sheet 41 according to the second embodiment. In the second embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the first embodiment, only the cable 13 is fixed to the second adhesive portion. However, in the second embodiment, the connector 12 and the cable 13 are fixed as shown in FIG. More specifically, the adhesive portion 45a is formed in a range that is approximately half of the connector 12, and the connector 12 and the cable 13 are fixed to the rear frame 10 by the adhesive portion 45a. Two slits 44 extending in the longitudinal direction are formed at one end in the longitudinal direction of the sheet main body 2 at a predetermined interval. An opening / closing part 43 is formed by two slits 44.

  The adhesive portions 45b, 45c and 46 are for fixing the sheet main body 2 to the rear frame 10 and correspond to a first adhesive portion. The adhesive portion 45a is for fixing the connector 12 and the cable 13 to the rear frame 10, and corresponds to a second adhesive portion.

  As described above, in the protective sheet 41 according to the second embodiment, since the adhesive portion 45a is formed in a range that hangs on the connector 12, in addition to the effect of the first embodiment, the connector 12 and the cable 13 are connected. At the same time, the relative movement between the connector 12 and the cable 13 can be suppressed. Thereby, vibration resistance can be improved (problems due to relative movement during vibration are suppressed).

  The second adhesive portion may be formed in a range that covers the entire connector 12. FIG. 6 is a front view of a protective sheet 51 according to a modification of the second embodiment. As shown in FIG. 6, the adhesive portion 55a is formed in a range that covers the entire connector 12, and the connector 12 and the cable 13 are fixed to the rear frame 10 by the adhesive portion 55a. Two slits 54 extending in the longitudinal direction are formed at one end in the longitudinal direction of the sheet main body 2 at a predetermined interval. An opening / closing part 53 is formed by two slits 54.

  The adhesive portions 55b, 55c, 56 are for fixing the sheet main body 2 to the rear frame 10 and correspond to a first adhesive portion. The adhesive portion 55a is for fixing the connector 12 and the cable 13 to the rear frame 10, and corresponds to a second adhesive portion. In this case, the same effect as in the case of FIG. 5 can be obtained.

<Embodiment 3>
Next, the insulating film 61 according to Embodiment 3 will be described. FIG. 7 is a front view of the insulating film 61 according to the third embodiment. In the third embodiment, the same components as those described in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  In the first and second embodiments, the sheet main body portion 2 is disposed in a state of covering the circuit board 11 and the connector 12 and prevents the cable 13 connected to the connector 12 mounted on the circuit board 11 from being pulled out. However, in the third embodiment, the insulating film 61 that is disposed between the rear frame 10 and the circuit board 11 and electrically insulates both is used.

  As shown in FIG. 7, the insulating film 61 is disposed on the rear frame 10, and the circuit board 11 is fixed on the insulating film 61. The insulating film 61 includes a film main body 62, a first adhesive portion that can fix the film main body portion 62 to the rear frame 10, a second adhesive portion that can fix the cable 13 to the rear frame 10, and an opening / closing portion 63. And. The film main body 62 is arranged on the circuit board 11 arranged on the rear frame 10, the connector 12 mounted on the circuit board 11, and the root part of the cable 13 connected to the connector 12. The opening / closing part 63 is formed by extending the film main body part 62 in the direction of the cable 13 and can open / close an area where the second adhesive part is disposed. The opening / closing part 63 is formed by a slit 64 formed in the vicinity of the connector 12 mounted on one end side of the circuit board 11 and in parallel with the insertion port into which the cable 13 of the connector 12 is inserted.

  In addition, the 1st adhesion part and the 2nd adhesion part are arrange | positioned at the back surface side of the film main-body part 62. FIG. The opening / closing part 63 formed in the insulating film 61 and the region in which the circuit board 11 of the insulating film 61 is disposed include a divided separator, and the separator is provided until the cable 13 is connected to the connector 12. In this way, the second adhesive portion is protected and can be opened and closed. After the cable 13 is connected to the connector 12, the separator of the opening / closing part 63 is separated and the cable 13 is fixed. As the insulating film 61, for example, a PET film is employed, and the circuit board 11 and the rear frame 10 are electrically insulated.

  As described above, the insulating film 61 according to Embodiment 3 has a structure in which the cable 13 is fixed by extending the insulating film 61 disposed between the circuit board 11 and the rear frame 10. Can also serve as a fixed structure. As a result, it is possible to prevent an increase in the number of parts and forgetting to affix and fix for prevention of removal.

<Modification>
FIG. 8 is a front view of an insulating film 71 according to a modification of the third embodiment. As shown in FIG. 8, a circuit board 11 on which the connector 12 is mounted is mounted on the rear frame 10, and in order to protect the circuit board 11, a metal shield metal 75 with an insulating film 71 attached is attached to the circuit board 11. May be placed on top. When the film main body portion 72 of the insulating film 71 is extended in the direction toward the cable 13, the second adhesive portion is disposed on the surface side of the film main body portion 72, so that the second adhesive portion faces the cable 13. It is not placed on the surface. Therefore, when the opening 74 is formed in a part corresponding to the cable 13 of the extended film main body 72 and the opening / closing part 73 is bent as shown by a two-dot chain line in FIG. An opening 74 and an opening / closing part 73 are formed so that the adhesive part faces the cable 13.

  In addition, the 1st adhesion part and the 2nd adhesion part are arrange | positioned at the surface side of the film main-body part 72. FIG. The opening / closing part 73 formed in the insulating film 71 and the region where the circuit board 11 of the insulating film 71 is disposed include a divided separator, and the separator is provided until the cable 13 is connected to the connector 12. In this way, the second adhesive portion is protected and can be opened and closed. After the cable 13 is connected to the connector 12, the separator of the opening / closing part 73 is separated and the cable 13 is fixed. Even when the shield metal 75 and the insulating film 71 are thus arranged, the cable 13 can be fixed by the insulating film 71. Also in this case, the same effect as in the third embodiment can be obtained.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  DESCRIPTION OF SYMBOLS 1 Protection sheet, 2 sheet | seat main-body part, 3 opening-and-closing part, 5a, 5b, 5c, 6 adhesion part, 10 rear frame, 11 circuit board, 12 connector, 13 cable, 21 protection sheet, 23 opening-and-closing part, 25a, 25b, 26 Adhesive part, 31 Protective sheet, 33b Open / close part, 35a, 35b, 36 Adhesive part, 41 Protective sheet, 43 Open / close part, 45a, 45b, 45c, 46 Adhesive part, 51 Protective sheet, 53 Open / close part, 55a, 55b, 55c , 56 Adhesive part, 61 Insulating film, 62 Film body part, 63 Opening / closing part, 71 Insulating film, 72 Film body part, 73 Opening / closing part.

Claims (5)

A sheet main body that covers the first component arranged on the fixed object, the connection portion mounted on the first component, and the root of the second component connected to the connection portion; ,
A first adhesive portion that is arranged on the back side of the sheet main body portion and can fix the sheet main body portion to the fixed object;
A second adhesive portion disposed on the back side of the sheet main body portion and capable of fixing the second component to the fixed object;
With
The sheet main body is fixed to the fixed object by the first adhesive portion in a state of covering the first component and the connection portion,
The said 2nd component is a protection sheet fixed to the said fixed target object by the said 2nd adhesion part in the state connected to the said connection part.   The protective sheet according to claim 1, further comprising an opening / closing part capable of opening / closing an area where the second adhesive part is disposed in the sheet main body part.   The protective sheet according to claim 1, wherein the second adhesive portion is formed in a range that hangs on the connection portion. The film main body arranged on the first component arranged on the fixed object, the connection part mounted on the first component, and the root part of the second component connected to the connection part And
A first adhesive part capable of fixing the film body part to the fixed object;
A second adhesive part capable of fixing the second component to the fixed object;
An opening / closing part formed by extending the film main body part in the direction of the second component, and capable of opening and closing an area where the second adhesive part is disposed;
With
The second component is an insulating film that is fixed to the fixed object by the second adhesive portion in a state of being connected to the connection portion. The protective sheet according to any one of claims 1 to 3 or the insulating film according to claim 4,
A circuit board as the first component on which a connector as the connection portion is mounted;
A cable or connection pad as the second component;
A rear frame which is the fixed object;
A display device comprising:

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