JP6547673B2 - Method of manufacturing display device - Google Patents

Description

  The disclosure in this specification relates to a method of manufacturing a display device.

  Patent Document 1 discloses a display device including a projection unit that emits light to display various types of information, a housing that accommodates the projection unit, and a protection member disposed outside the housing. The light emitted from the projection unit passes through the opening formed in the housing and reaches the user of the display device. The housing has a surrounding portion surrounding the opening, and in this surrounding portion, an adhesive film having adhesiveness on both sides is disposed. In general, the adhesive film has a rectangular frame shape corresponding to the shape of the opening, and is disposed so as to surround the opening. The protective member is fixed to the housing by the adhesive film.

  In a general manufacturing method of the above display device, first, the display unit in which the projection unit is accommodated in the housing is prepared. Next, the adhesive sheet is attached to the surrounding portion. The adhesive sheet is composed of an adhesive film and a release film having the same shape as the adhesive film, and one side of the adhesive film in contact with the protective member is covered with the release film. On the other hand, the back surface of the adhesive film opposite to the one surface is in contact with the surrounding portion. Next, the release film of the adhesive sheet is peeled off to expose one side of the adhesive film. Then, the protection member is disposed on the exposed surface so as to be in contact with the exposed surface. Thus, the display device is manufactured.

Unexamined-Japanese-Patent No. 2015-16693

  Here, since the adhesive film has a rectangular frame shape and the release film has the same shape as the adhesive film, the adhesive sheet also has a rectangular frame shape. That is, the adhesive sheet has a space surrounded by the rectangular frame-like adhesive sheet in its frame. Therefore, since the film-like and rectangular frame-like adhesive sheet has the above-mentioned space, it is likely to be deformed in shape such as distortion or bending. Therefore, when sticking an adhesive sheet to the enclosure part of a housing | casing, an adhesive sheet deform | transformed and the workability at the time of sticking an adhesive film was not good.

  In view of this, an object of the present disclosure is to provide a method of manufacturing a display device that can improve the workability when attaching an adhesive sheet at the time of manufacture.

The present disclosure includes a projection unit (100) that emits light to display various information, and a rectangular opening (111) and an opening that accommodate the projection unit and allow light emitted from the projection unit to pass through. A display (10) having a case (110) having a surrounding portion (112) and a surrounding portion (112); and a portion facing the surrounding portion and disposed outside the case so as to cover the opening portion Which has a peripheral portion (200), and has a translucent protective member (20), and a case and a protective member bonded to each other, and has one surface (31a) and a back surface (31b), and has a rectangular shape And a rectangular frame-like adhesive film (31) surrounding the opening of
A covering film (320) having a rectangular frame shape covering one surface of the adhesive film, and a release film (32) having a connecting part (321) for connecting at least any two sides among four sides forming the rectangular frame shape in the covering area. ) and the adhesive sheet (30) having an adhesive film, a preparation step of preparing a display device, a protective member,
A sticking step of the back surface of the adhesive film is stuck adhesive sheet to contact the surrounding portion,
A peeling step to peel off the release film from the adhesive film,
The exposed first surface and the peripheral portion is contacted, a bonding step of bonding the indicator and the protective member, only containing,
The surrounding and peripheral portions have curved portions,
The housing has a position designation unit (113) for designating the position where the adhesive film is disposed,
The release film has a positioning portion (323) in which the sticking position of the adhesive sheet is determined such that the adhesive film is disposed at a predetermined position in the surrounding portion by contacting the position designation portion.
Each of the position designation unit and the positioning unit is formed in a plurality of places,
At least one of the multiple locations is a curved portion,
In the sticking step, the sticking position of the adhesive sheet with respect to the housing is positioned by bringing the position designation portion and the positioning portion into contact at a plurality of positions, and the sticking is performed.

  According to this, since the connecting part connects at least any two sides among the four sides forming the rectangular frame shape in the rectangular frame-like covering part in the frame, two of the covering parts connected by the connecting part The sides become independent and hard to move. That is, since it becomes difficult to happen that the shape of the rectangular frame-like peeling film is distorted or bent, the peeling film becomes difficult to deform. Therefore, the adhesive sheet in which the adhesive film and the peelable film which is not easily deformed is also hardly deformed. Therefore, the adhesive sheet of the present disclosure consisting of a thin film-like adhesive film and a release film becomes less deformable than a conventional adhesive sheet in which the adhesive film and the release film have the same shape. As mentioned above, if the adhesive sheet of this indication is used, the workability at the time of sticking an adhesive sheet can be improved at the time of manufacture of a display.

Furthermore, the present disclosure includes a projection unit (100) that emits light to display various information, and a rectangular opening (111) and an opening that accommodates the projection unit and allows light emitted from the projection unit to pass through. And a display (10) having a housing (110) having a surrounding part (112), which is a part surrounding the part, and an opening part, the housing (110) being disposed outside the housing so as to cover the opening An adhesive film which has a peripheral portion (200) which is a portion to be bonded and which bonds a translucent protective member (20), a housing and a protective member, and one surface (31a) and a rear surface (31b) (31), and the adhesive film is a method of manufacturing a display device having an L shape along a part of the rectangular opening,
A release film having an L-shaped covering portion (320) covering one side of an L-shaped adhesive film and a connecting portion (321) connecting the two sides on the side of two sides forming the L-shape in the covering portion A preparation step of preparing an adhesive sheet (30) having (32) and an adhesive film, a display, and a protection member;
Attach an adhesive sheet so that the back surface of the adhesive film contacts one of the surrounding part and the peripheral part,
A sticking step of the back surface of the one in the adhesive film of the surrounding portion and the peripheral portion is affixed to the adhesive sheet into contact with multiple locations,
A peeling step to peel off the release film from the adhesive film,
The exposed first surface and the peripheral portion is contacted, a bonding step of bonding the indicator and the protective member, only containing,
The surrounding and peripheral portions have curved portions,
The housing has a position designation unit (113) for designating the position where the adhesive film is disposed,
The release film has a positioning portion (323) in which the sticking position of the adhesive sheet is determined such that the adhesive film is disposed at a predetermined position in the surrounding portion by contacting the position designation portion.
Each of the position designation unit and the positioning unit is formed in a plurality of places,
At least one of the multiple locations is a curved portion,
At a sticking process, the sticking position of the adhesive sheet with respect to a housing | casing is positioned by contacting a position designation part and a positioning part in multiple places, and sticking is implemented.

  According to this, since the connecting part is connected at the side of the L-shaped covering part where the two sides form an L-shape and the two sides sandwich the two sides, two sides of the covering part connected by the connecting part are independent It becomes difficult to move. That is, since the shape of the L-shaped release film is less likely to be distorted or bent, the release film is less likely to be deformed. Therefore, the workability at the time of sticking an adhesive sheet can be improved at the time of manufacture of a display device similarly to the indication mentioned above.

Furthermore, the present disclosure includes a projection unit (100) that emits light to display various information, and a rectangular opening (111) and an opening that accommodates the projection unit and allows light emitted from the projection unit to pass through. And a display (10) having a housing (110) having a surrounding part (112), which is a part surrounding the part, and an opening part, the housing (110) being disposed outside the housing so as to cover the opening An adhesive film which has a peripheral portion (200) which is a portion to be bonded and which bonds a translucent protective member (20), a housing and a protective member, and one surface (31a) and a rear surface (31b) (31), wherein the adhesive film is L-shaped along a part of the rectangular opening, and is a method of manufacturing a display including two L-shaped adhesive films,
A release film having an L-shaped covering portion (320) covering one side of an L-shaped adhesive film and a connecting portion (321) connecting the two sides on the side of two sides forming the L-shape in the covering portion A preparation step of preparing an adhesive sheet (30) having (32) and an adhesive film, a display, and a protection member;
A sticking step of sticking the adhesive sheet so that the back surface of the adhesive film is in contact with one of the surrounding portion and the peripheral portion, and a peeling step of peeling the peelable film from the adhesive film;
And a bonding step of bringing the exposed surface and the peripheral portion into contact with each other to bond the display and the protective member.
The disclosed aspects in this specification employ different technical means in order to achieve their respective goals. The claims and the reference numerals in parentheses described in this section exemplarily show the correspondence with parts of the embodiments described later, and are not intended to limit the technical scope. The objects, features and advantages disclosed in the present specification will become more apparent by referring to the following detailed description and the accompanying drawings.

It is the schematic at the time of vehicle mounting of the display apparatus which concerns on 1st Embodiment. It is a perspective view of a display concerning a 1st embodiment. It is a sectional view of a display concerning a 1st embodiment. It is sectional drawing of the display apparatus in the preparatory process of the manufacturing method which concerns on 1st Embodiment. It is a perspective view of an adhesive sheet concerning a 1st embodiment. It is a perspective view of a display in a pasting process of a manufacturing method concerning a 1st embodiment. It is sectional drawing of the display apparatus in the peeling process of the manufacturing method which concerns on 1st Embodiment. It is sectional drawing of the display apparatus in the arrangement | positioning process of the manufacturing method which concerns on 1st Embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 1st embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 1st embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 1st embodiment. It is a perspective view of the adhesive sheet which concerns on 2nd Embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 2nd embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 2nd embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 2nd embodiment. It is a perspective view of the adhesive sheet which concerns on 3rd Embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 3rd embodiment. It is sectional drawing of the display apparatus in the peeling process of the manufacturing method which concerns on 3rd Embodiment. It is a perspective view of the adhesive sheet which concerns on 4th Embodiment. It is a perspective view of a display in a pasting process of a manufacturing method concerning a 4th embodiment. It is a perspective view of the modification of the adhesive sheet concerning a 4th embodiment. It is a perspective view of a display in a pasting process of a manufacturing method concerning a 4th embodiment. It is a perspective view of other display apparatuses.

First Embodiment
First, an outline of the display device of the present embodiment will be described. As shown in FIG. 1, the display device 1 is a projection type display device and is called a so-called HUD (Head-Up Display). In this type of projection type display device, an optical image of various information emitted from the projection unit is reflected by the reflecting mirror, enlarged by the concave mirror, and displayed on a part of the windshield glass of the vehicle. As a result, various information can be displayed as a virtual image in front of the driver, and the occupant can view various information without turning his or her eyes from the front.

  The display device 1 of the present embodiment is mounted on a vehicle 40, which is a type of mobile object, and is housed in a housing portion 401 of an instrument panel 400 of the vehicle 40. The housing portion 401 is a space for housing the display device 1 in the instrument panel 400, and has an opening 402 on the windshield 410 side. The display device 1 projects an image on a windshield 410 which is a display member of the vehicle 40 through the opening 402 of the housing portion 401.

  In the following description, the front-rear direction is the direction in which the vehicle 40 in FIG. 1 moves forward in the positive direction, the vertical direction is the direction perpendicular to the front-rear direction and the vertical upward direction is positive, and the left-right direction is the front-rear direction It means that the direction is perpendicular to the vertical direction and to the left and right with respect to the forward direction of the vehicle.

  Here, in the vehicle 40, the surface on the indoor side of the windshield 410 forms a projection surface 410a on which an image is projected, in a curved concave shape or a flat planar shape. Further, in the vehicle 40, the windshield 410 may have an angular difference for overlapping virtual images 420 formed by reflecting each surface between the surface on the indoor side and the surface on the outdoor side. Alternatively, the windshield 410 may be provided with a vapor-deposited film, a film or the like on the indoor surface in order to suppress the brightness of the virtual image 420 due to the reflection on the outer surface. Furthermore, instead of the windshield 410, a combiner separate from the vehicle 40 may be installed in the vehicle 40 to project an image on the projection surface 410a of the combiner.

  The display device 1 causes the occupant 430 of the vehicle 40 seated in the seat to visually display the image as a virtual image 420 from the inside of the vehicle 40 in the vehicle 40 in which the image is projected on the projection surface 410a. That is, the light reflected by the projection surface 410a reaches the eye point 430a of the occupant 430, and the occupant 430 perceives the light reaching the eye point 430a. Thus, the passenger 430 can recognize vehicle state values such as the vehicle speed and the remaining amount of fuel, or vehicle information such as road information and visibility auxiliary information.

  Next, based on FIG.2 and FIG.3, the concrete structure of the display apparatus 1 of this embodiment is demonstrated.

  The display device 1 includes a display 10, a protective member 20, and an adhesive film 31. The display 10 includes a projection unit 100 and a housing 110.

  The projection unit 100 emits light to display various information. In the present embodiment, the projection unit 100 includes the backlight 101, the liquid crystal panel 102, and the light guide unit 103.

  The backlight 101 is formed of a light source, a condensing lens, a diffusion plate, and the like (not shown).

  The light source is, for example, a light emitting element composed of a light emitting diode, and is disposed on the light source circuit board. The light source is electrically connected to the controller and the power supply through the wiring pattern on the light source circuit board. The light source emits light source light according to the amount of current when it is energized, and thereby projects randomly polarized light source light toward the focusing lens.

  The condenser lens is, for example, a translucent convex lens made of synthetic resin, glass or the like, and is disposed between the light source and the diffusion plate. The condensing lens condenses the light source light from the light source and emits it toward the diffusion plate.

  The diffusion plate is a translucent or milky white plate formed of a synthetic resin such as polycarbonate into which the light diffusion material is kneaded, and is disposed between the condensing lens and the projection lens. The diffusion plate emits toward the liquid crystal panel 102 source light whose brightness uniformity has been adjusted by diffusion. Therefore, the backlight 101 illuminates the liquid crystal panel 102.

  The liquid crystal panel 102 is a liquid crystal panel 102 using thin film transistors (Thin Film Transistors), and is, for example, an active matrix liquid crystal panel 102 formed of a plurality of liquid crystal pixels arranged in a two-dimensional direction. In the liquid crystal panel 102, although not shown, a polarizing plate, a pair of transparent electrodes, a liquid crystal layer, a color filter, and the like are stacked.

  The polarizing plate is formed in a planar shape straddling all liquid crystal pixels, and linearly polarized light is extracted from the light source light of random polarized light illuminated via the backlight 101 and is made to enter the liquid crystal layer. The pair of transparent electrodes is electrically connected to the external controller, and a voltage can be applied to each liquid crystal pixel by an electric signal of the external controller.

  The liquid crystal layer is, for example, a layer filled with a solution containing liquid crystal molecules such as nematic liquid crystal as a main component. In the liquid crystal layer, the alignment direction of liquid crystal molecules is controlled by an applied voltage between a pair of transparent electrodes, and it is possible to change the polarization direction of light source light incident on the liquid crystal layer according to the applied voltage. For example, in a display pixel for displaying an image among liquid crystal pixels, the polarization direction is changed by 90 degrees by transmission of the liquid crystal layer. On the other hand, among the liquid crystal pixels, in the non-display pixels which do not display an image, the polarization direction does not change even if the light passes through the liquid crystal layer. In each liquid crystal pixel, the applied voltage is controlled corresponding to the virtual image 420 to be displayed, so that the display pixel and the non-display pixel are switched. In this manner, the liquid crystal layer is illuminated by the light source light from the polarizing plate, is provided so as to be able to switch between the display pixel and the non-display pixel, and makes the polarization direction of the display pixel different from the polarization direction of the non-display pixel. Here, the polarization direction in the present embodiment is the direction in which the electric field vibrates in the linearly polarized light source light.

  The light source light transmitted through the liquid crystal layer of the liquid crystal panel 102 is linearly polarized light, and is projected onto the light guide 103 in a state in which the polarization direction of the display pixel and the polarization direction of the non-display pixel are different.

  As shown in FIG. 2, the light guiding unit 103 is configured by a plane mirror 103a, a concave mirror 103b, and the like.

  The plane mirror 103a is formed on the surface of a base material made of synthetic resin or glass by depositing aluminum as a reflective surface. The reflective surface is formed in a smooth planar shape. Then, the flat mirror 103 a reflects the light source light from the liquid crystal panel 102 of the display unit 21 toward the concave mirror 103 b.

  The concave mirror 103 b is formed by depositing aluminum as a reflective surface on the surface of a base material made of synthetic resin or glass. The reflecting surface is formed in a smooth curved surface as a concave surface in which the center of the concave mirror 103b is recessed. Then, the concave mirror 103 b reflects the light source light from the flat mirror 103 a toward the projection surface 410 a through the opening 111. Thus, the light guide 103 guides the light source light whose polarization direction of the display pixel and the polarization direction of the non-display pixel are different by the liquid crystal layer toward the projection surface 410 a through the opening 111.

  The configuration of the projection unit 100 and the light guide unit 103 in the present embodiment is merely an example. From the above-described configuration of the projection unit and the light guide unit, an optical element such as a lens or a mirror may be added, changed to another optical element, or these optical elements may be omitted.

  The housing 110 is a case for housing the projection unit 100. In the present embodiment, the case 110 is a case that holds the projection unit 100 in which the backlight 101, the liquid crystal panel 102, and the light guide unit 103 are combined into one unit, and accommodates these units. The housing 110 has an opening 111 through which light emitted from the projection unit 100 passes and a surrounding portion 112 which is a portion surrounding the opening 111.

  In the present embodiment, the housing 110 is composed of an inner case and an outer case not shown. The inner case holds the projection unit 100 in which the backlight 101, the liquid crystal panel 102, and the light guide unit 103 are one unit. The outer case accommodates the inner case in which the projection unit 100 is held. An opening 111 and a surrounding portion 112 are formed in the outer case.

  The opening 111 is a space through which the light emitted from the projection unit 100 passes. The opening 111 communicates the outside and the inside of the housing 110. In this embodiment, as shown in FIG. 2, it is a rectangular shape, but since the light emitted from the projection part 100 should just pass, the shape can be designed suitably.

  The surrounding portion 112 is a portion surrounding the opening 111 in the housing 110. In the present embodiment, since the opening 111 is rectangular, the surrounding portion 112 is also rectangular. Two portions in the short side direction of the surrounding portion 112 are downwardly convex toward the inside of the housing 110. The surrounding portion 112 includes a front portion 112a that is a front portion in the front-rear direction, a rear portion 112b that is a rear portion, and left and right portions 112c that are both portions in the left-right direction continuous with the front portion 112a and the rear portion 112b. Become.

  The protective member 20 is a member which has translucency and covers the opening 111 of the housing 110, as shown in FIG. The protective member 20 prevents foreign matter from intruding into the housing 110 through the opening 111 from the outside. The protective member 20 has a peripheral portion 200 which is a portion facing the surrounding portion 112 when the protective member 20 is fixed to the housing 110. Conversely, the surrounding portion 112 faces the peripheral portion 200. The portion of the protective member 20 not facing the surrounding portion 112 is the central portion 210. The central portion 210 directly covers the opening 111 and is a portion surrounded by a dotted line in FIG. As shown in FIG. 3, the protection member 20 is mounted at the opening 111 so as to be inclined downward as it goes to the front side. Furthermore, the protective member 20 is formed in a cylindrical surface shape in which the central portion 210 is curved downward and convex toward the inside of the housing 110. The radius of curvature in this curve is set to, for example, 150 cm.

  In the present embodiment, the display device 1 is housed in the housing portion 401 of the instrument panel 400, but the indicator 10 is housed in the housing portion 401 so as to cover the opening 402 of the instrument panel 400. The protective member 20 may be disposed. Furthermore, the instrument panel 400 may function as the housing 110, and the projection unit 100 may be accommodated in the accommodation unit 401 of the instrument panel 400.

  The adhesive film 31 adheres the housing 110 and the protective member 20. The adhesive film 31 is formed on a quadrilateral frame portion 311, a space portion 312 which is surrounded by the frame portion 311 and penetrates the front and back of the adhesive film 31, and a surface 31a and a back surface 31b of the quadrilateral frame portion. And a pressure-sensitive adhesive layer. The adhesive film 31 is in the shape of a rectangular frame surrounding the rectangular opening 111.

  In the present embodiment, the adhesive film 31 has a shape that follows the shape of the opening 111, and has a rectangular frame shape. Of the adhesive film 31, two sides extending in the long side direction are in contact with the front portion 112a and the rear portion 112b, and two sides extending in the short side direction are in contact with the left and right portions 112c. One of the surface 31 a and the back surface 31 b of the adhesive film 31 is in contact with the surrounding portion 112 of the housing 110, and the other is in contact with the peripheral portion 200 of the protective member 20. That is, the adhesive film 31 is sandwiched between the surrounding portion 112 and the peripheral portion 200. In addition, the adhesive film 31 has a planar shape as shown in FIG. 5 before the sticking step described later, and after the sticking step, the housing is in accordance with the shape of the curved surrounding portion 112 to the peripheral portion 200. The curve is convex downward toward the inside of the 110.

(Manufacturing method of the first embodiment)
Next, a method of manufacturing the display device 1 according to the present embodiment will be described based on FIGS. 4 to 8.

  First, the display 10, the protective member 20, and the adhesive sheet 30 are prepared. Hereinafter, this process is referred to as a preparation process.

  In the preparation process according to the present embodiment, first, the backlight 101, the liquid crystal panel 102, and the light guide unit 103 are disposed in the inner case to form a unit-like projection unit 100. Next, the inner case holding the projection unit 100 is accommodated in the outer case. Thus, the indicator 10 is prepared.

  Moreover, the adhesive sheet 30 prepared at the preparation process contains the adhesive film 31 and the peeling film 32, and the adhesive film 31 and the peeling film 32 mutually overlap.

  The release film 32 is in the form of a thin film having a covering portion 320 and a connecting portion 321, and covers the one surface 31 a side of the adhesive film 31.

  The covering portion 320 has a rectangular frame shape and covers one surface 31 a of the adhesive film 31. In the present embodiment, as shown in FIGS. 5 and 6, the covering portion 320 has the same shape as the adhesive film 31, that is, a rectangular frame shape, and covers the one surface 31a so that the entire one surface 31a is not exposed to the outside. . In other words, the covering portion 320 has a rectangular shape that is large enough to cover or hide the space portion 312 of the adhesive film 31 and to cover the one surface 31 a of the frame portion 311. Further, the covering portion 320 refers to a portion outside the dotted line virtually drawn on the peeling film 32 shown in FIG. Then, in the preparation step, the covering portion 320 and the one surface 31 a of the adhesive film 31 are in close contact with each other such that the outer peripheral line of the covering portion 320 and the outer peripheral line of the adhesive film 31 coincide. In addition, although the above-mentioned thing was employ | adopted as one of the preferable specific examples, the coating | coated part 320 which concerns on this embodiment does not necessarily need to be the adhesive film 31, and the same shape. For example, when the adhesive sheet 30 is viewed from the one surface 31 a side, the outer peripheral contour of the covering portion 320 surrounds the outer peripheral contour of the adhesive film 31, that is, the outer peripheral contour of the covering portion 320 is the outer peripheral of the adhesive film 31. It may be designed larger than the outline.

  The connecting portion 321 connects at least any two sides of the four sides forming the rectangular frame shape in the covering portion 320 in the frame. In the present embodiment, as shown in FIG. 5, the connecting portion 321 connects all the long sides of the two sets of the covering portion 320 and the entire sides of the two short sides in a rectangular frame. That is, the connecting portion 321 connects all sides of a rectangle formed by the inner peripheral side of the covering portion 320, and a portion surrounded by a dotted line virtually drawn on the peeling film 32 shown in FIG. That is, it is the whole part surrounded by the rectangular frame-like covering portion 320. Therefore, the peeling film 32 which has the coating | coated part 320 and the connection part 321 in this embodiment is a rectangular shape of 1 sheet. In addition, although the above-mentioned thing was employ | adopted as one of the preferable specific examples, the connection part 321 which concerns on this embodiment is not limited to this. The modification of the connection part 321 is mentioned later.

  In addition, since the adhesive film 31 has adhesiveness on both surfaces, the adhesive sheet 30 may be covered with the peeling film 32 of 2 sheets on both surfaces in the preparation process. In this case, the preparation step includes the step of peeling off one release film 32 in advance to expose one side of the adhesive film 31. The surface exposed at this time corresponds to the back surface 31 b of the adhesive film 31.

  Next, the adhesive sheet 30 is attached such that the back surface 31 b of the adhesive film 31 is in contact with one of the surrounding portion 112 and the peripheral portion 200. Hereinafter, this process is referred to as a sticking process.

  In the attaching process according to the present embodiment, as shown in FIG. 6, one surface 31 a side of the adhesive film 31 covered with the release film 32 is directed outward, and the back surface 31 b is attached to the surrounding portion 112. In the attaching step, the adhesive sheet 30 is attached such that the back surface 31 b of the adhesive film 31 exposed in advance in the preparation step is in contact with the surrounding portion 112. When the adhesive sheet 30 is attached to the surrounding portion 112, the covering portion 320 faces the surrounding portion 112 with the adhesive film 31 interposed therebetween. On the other hand, since the connecting portion 321 is a portion surrounded by the covering portion 320 as described above, the connecting portion 321 is closed so as to cover the entire opening 111. Further, in the attaching process, since the adhesive sheet 30 is attached to the surrounding portion 112 which is curved downward and inward toward the inside of the housing 110, the adhesive sheet 30 is also curved according to the curvature.

  In addition, although a sticking process set it as the process after a preparation process, after sticking adhesive sheet 30 to an outer case beforehand, you may accommodate the inner case in which projection part 100 was held in an outer case.

  Next, the release film 32 is peeled off from the adhesive film 31. Hereinafter, this process is referred to as a peeling process.

  In the peeling process according to the present embodiment, as shown in FIG. 7, one surface 31 a of the adhesive film 31 is exposed to the outside of the housing 110. That is, in the peeling step, the covering portion 320 is peeled off from the side facing the front portion 112 a in the rectangular frame-like covering portion 320. In order, the part which opposes the left-right part 112c among the coating | coated parts 320 and the part which opposes the back part 112b are peeled off. Along with this, the connecting portion 321 which has closed the opening 111 disappears, and the opening 111 is exposed to the outside. That is, the connecting portion 321 is peeled off together with the covering portion 320. By peeling off the peeling film 32 in this manner, one surface 31 a of the adhesive film 31 is exposed to the outside. In the peeling process according to the present embodiment, the peeling film 32 is peeled from the front side toward the rear side, but the direction in which the peeling film is peeled is not limited at all.

  Next, the display 10 and the protective member 20 are adhered by the adhesive film 31. Hereinafter, this process is referred to as a bonding process. In the arrangement process according to the present embodiment, as shown in FIG. 8, the protection member 20 is arranged on the exposed surface 31 a of the adhesive film 31. In the disposing step, one surface 31 a side of the adhesive film 31 contacts the peripheral portion 200, and the back surface 31 b side of the adhesive film 31 contacts the surrounding portion 112. That is, the protective member 20 is disposed such that the outer periphery of the protective member 20 and the outer periphery of the adhesive film 31 overlap.

  In the above, the manufacturing method of the display apparatus of this embodiment was demonstrated. In the sticking process described above, the back surface 31 b of the adhesive film 31 in the adhesive sheet 30 is stuck to the surrounding portion 112. However, the present invention is not limited thereto, and the back surface 31b of the adhesive film 31 is attached to the peripheral portion 200 of the protective member 20, and after the peeling process, the protective member 20 on which the adhesive film 31 is disposed covers the opening 111. It may be disposed in the housing 110.

(Effect of the first embodiment)
According to the present embodiment, as described above, the covering film 320 having a rectangular frame shape covering one surface 31 a of the adhesive film 31 and the peeling film 32 having a connecting part 321 for connecting all sides forming the rectangular frame shape and the adhesive film 31 An adhesive sheet 30 is used which is overlapped with one another. That is, the four sides of the covering portion 320 forming the rectangular shape are difficult to move independently by the connecting portion 321, that is, the connecting portion 321 restricts the deformation of the covering portion 320 so that the release film is hardly deformed. There is. Therefore, the one surface 31a of the adhesive film 31 is covered with the peeling film 32 which is not easily deformed, and the adhesive sheet 30 in which these are overlapped also becomes difficult to be deformed. Therefore, the adhesive sheet 30 of the present embodiment comprising the thin film-like adhesive film 31 and the release film 32 is less likely to be deformed than the conventional adhesive sheet in which the adhesive film and the release film have the same shape. As mentioned above, if the adhesive sheet 30 of this embodiment is used, the workability at the time of sticking of the adhesive sheet 30 at the time of manufacture can be improved.

  In addition, the above-mentioned effect appears more remarkable, when the thinness of the adhesive film in the conventional adhesive sheet and a exfoliation film and the thinness of adhesive film 31 in exfoliation sheet 30 of this embodiment and exfoliation film 32 are equal.

  In particular, in the HUD of which the present embodiment is an example, the surrounding portion covering the opening of the housing is often in a curved shape. In a display device provided with a housing having such a surrounding portion, the workability at the time of adhering the adhesive sheet is better than that of a normal display device such as a display having a liquid crystal panel, for example, Often not. Therefore, when the adhesive sheet of the present disclosure is used in the manufacture of a display device in which a housing such as a HUD has a curved surface shape, the above-described effects can be fully achieved.

(Modification of the first embodiment)
In the above-described embodiment, the peeling film 32 has a rectangular shape, but as a modification, as shown in FIG. 9, the connecting portion 321 has two sides orthogonal to each other forming a rectangular frame shape in the covering portion 320. At least one pair of orthogonal sides may be connected in a frame. Specifically, the covering portion 320 has a rectangular frame shape as in the first embodiment described above. The connection part 321 connects the covering parts 320 which extend in the direction orthogonal to each other among the covering parts 320 in a frame. That is, the connecting portion 321 connects only the covering portion 320 extending in the long side direction and the covering portion 320 extending in the short side direction in the frame. Accordingly, since the connecting portion 321 does not connect the long sides of the covering portion 320 and does not connect the short sides, the peeling film 32 of the modified example shown in FIG. Space is formed. That is, as shown in FIG. 9, the connecting part 321 which connects a pair of orthogonal two sides in a frame has four right triangles. That is, two sides sandwiching the right angle forming each right triangle shape are connected to the covering portion 320. Even if such an adhesive sheet 30 in which the release film 32 overlaps the one surface 31 a of the adhesive film 31, deformation of two orthogonal sides of the four sides forming the covering portion 320 by the connecting portion 321 can be restricted. The effects and advantages of the first embodiment can be achieved.

  In the modification shown in FIG. 9, the connecting portion 321 connects the covering portions 320 extending in the direction orthogonal to each other in the covering portion 320 in a frame. However, the present invention is not limited to this, and the connecting portion 321 connects at least one pair of orthogonal two sides out of the two pairs of orthogonal sides forming a rectangular frame shape in the covering portion 320 in a frame. do it. Therefore, the connection location of the connection part 321 and the shape etc. of the connection part 321 in two sets of two orthogonal sides which form a rectangular frame shape can be designed suitably.

  Further, as another modification, as shown in FIG. 10, the connecting portion 321 connects at least one of the two sides of the two sides forming the rectangular frame shape in the covering portion 320 within the frame. May be Specifically, the covering portion 320 has a rectangular frame shape as in the first embodiment and the modification described above. The connecting portion 321 connects two sides extending in the long side direction among the four sides forming the covering portion 320 in a frame. The connecting portion 321 extends in a direction perpendicular to two sides of the covering portion 320 extending in the long side direction, and connects some of the two sides. That is, as shown in FIG. 10, since the connecting portion 321 connects portions of two sides extending in the long side direction of the covering portion 320, two rectangular spaces are formed in the frame. . Even with such a peeling film 32, deformation of any one pair of opposite sides of the pair of opposite sides forming the covering portion 320 by the connecting portion 321 can be restricted, and the operation and effect of the above-described first embodiment can be exhibited. Can.

  In the modification shown in FIG. 10, it is assumed that the connecting portion 321 connects the sides extending in the direction of the long side out of the two pairs of sides forming the covering portion 320 in a frame. However, the present invention is not limited to this, and the connecting part 321 may connect the opposite sides extending in the direction of the short side of the two pairs of the sides forming the covering part 320 in a frame.

  Moreover, as another modification, as shown in FIG. 11, the connection part 321 may connect four sides forming a rectangular frame shape in the cover part 320 in a frame. In detail, the covering portion 320 has a rectangular frame shape as described above. The connection part 321 connects the inner circumferences of the covering part 320. The portions where the covering portion 320 and the connecting portion 321 are connected are parts of each side. Therefore, a fan-shaped space sandwiched between the covering portion 320 and the connecting portion 321 is formed in the frame. Even with such a release film 32, deformation of the four sides forming the covering portion 320 can be regulated by the connecting portion 321, and the operation and effect of the above-described first embodiment can be exhibited.

  In the modification shown in FIG. 11, the connecting portion 321 connects the four sides forming the covering portion 320 in a frame, and a fan-shaped space sandwiched between the covering portion 320 and the connecting portion 321 is formed in the frame. Yes. However, the present invention is not limited to this, and the space between the covering portion 320 and the connecting portion 321 may not be fan-shaped. That is, as long as the four sides forming the covering portion 320 are within the frame of the covering portion 320, they may be connected by the connecting portion 321 having any shape. That is, the connection part of the four sides forming the covering part 320 and the connecting part 321 can be designed appropriately. Moreover, the connection part 321 may connect diagonals in the rectangle in the frame which the inner periphery of the coating | coated part 320 forms.

Second Embodiment
This embodiment is another embodiment based on the first embodiment described above. Therefore, the description of the parts common to the above-described first embodiment is omitted.

  Although the adhesive film and the covering portion in the above-described embodiment are in the shape of a rectangular frame, in the present embodiment, the adhesive film 31 and the covering portion 320 are L-shaped along a part of the rectangular opening 111.

  In the present embodiment, as shown in FIG. 12, the adhesive film 31 is L-shaped along a part of the rectangular opening 111. The L-shaped adhesive film 31 includes a portion extending in the long side direction and a portion extending in the short side direction. When the adhesive film 31 shown in FIG. 12 is disposed between the surrounding portion 112 and the peripheral portion 200, the portion extending in the long side direction contacts one of the front portion 112a and the rear portion 112b, and the short side direction The part extending in contact with either the left or right portion 112c. The adhesive film 31 has the one surface 31a and the back surface 31b that is the opposite surface as described above, and the side 31a is covered with the below-described release film in the preparation process and the application process in the manufacturing process of the display device.

  The release film 32 has a covering portion 320 and a connecting portion 321 as in the above-described embodiment.

  The covering portion 320 is L-shaped so as to cover the one surface 31 a of the L-shaped adhesive film 31. In the present embodiment, the covering portion 320 has the same shape as the adhesive film 31, and covers the front surface of the surface 31a. And it adheres so that the outer periphery line of the coating | coated part 320 and the outer periphery line of the adhesive film 31 may correspond in a preparatory process similarly to 1st Embodiment. In addition, although the above-mentioned thing was employ | adopted as one of the preferable specific example, the coating | coated part 320 which concerns on this embodiment does not necessarily need to be the same shape as the adhesive film 31, similarly to the case of 1st Embodiment. Alternatively, the cover portion 320 may have a larger area than the one surface 31a.

  The connecting part 321 connects the two sides on the side of the covering part 320 where the two sides forming the L-shape sandwich. In the present embodiment, as shown in FIG. 5, the connecting portion 321 is connected at the side of the covering portion 320 between the long side and the short side forming the L-shape. That is, in the connecting portion 321, the dotted lines virtually drawn on the covering portion 320 shown in FIG. 12 connect the two sides in a region sandwiched by two sides orthogonal to each other. Therefore, the peeling film 32 which has the coating | coated part 320 and the connection part 321 in this embodiment becomes a trapezoidal shape of one sheet. In addition, although the above-mentioned thing was employ | adopted as one of the preferable specific examples, the connection part 321 which concerns on this embodiment is not limited to this. As the connection part 321 of another form, the connection part 321 may connect part of the said two sides in the area | region which two sides mutually orthogonally cross of the coating | coated part 320 sandwich. That is, in the release film 32, there is a space sandwiched by the L-shaped covering portion 320 and the connecting portion 321.

  According to the present embodiment, since the connecting portion 321 connects the two sides on the side of the L-shaped covering portion 320 where the two sides forming the L shape sandwich the covering, the covering connected by the connecting portion 321 The two sides of the part 320 become independent and hard to move. That is, since the shape of the L-shaped release film 32 is less likely to be distorted or bent, the release film 32 is less likely to be deformed. Therefore, the workability at the time of sticking the adhesive sheet 30 can be improved at the time of manufacture of a display device similarly to the indication mentioned above.

  In the second embodiment, the peeling film 32 has a L-shaped covering portion 320 and a connecting portion for connecting the two sides on the side of two sides forming the L-shape in the L-shaped covering portion 320. Since it has 321, the peeling film 32 presupposed that it is trapezoid shape of 1 sheet. However, the present invention is not limited to this, and as shown in FIG. 13, the release film 32 may have a rectangular shape. As shown in FIG. 13, the connecting portion 321 of the release film 32 is rectangular. Of the four sides forming the rectangular connection part 321, the two sides connected to the covering part 320 have a total length of one side integrated with the two sides of the covering part 320. That is, the connecting part 321 shown in FIG. 13 has the same size as the rectangular area of the rectangular region sandwiched by the two inner sides extending in the long side direction and the short side direction of the L-shaped covering part 320. In the attaching process of the adhesive sheet 30 in which the one surface 31 a of the adhesive film 31 is covered with the peeling film 32 shown in FIG. 13, the connecting part 321 closes the opening 111 as shown in FIG. As it covers.

(Modification of the second embodiment)
In the above-mentioned embodiment, it is an adhesive sheet which consists of one adhesive film, but as a modification, as shown in FIGS. 14 and 15, it consists of two adhesive films 31 and the two adhesive films 31 The one side 31 a may be covered with one release film 32.

  In the modification shown in FIG. 14, two L-shaped adhesive films 31 are provided. As shown in FIG. 14, the two L-shaped adhesive films 31A and 31B are combined to form a rectangular frame shape. In other words, although not shown, one adhesive film 31A of the two L-shaped adhesive films 31A and 31B is disposed along two orthogonal sides of the four sides forming the rectangular opening 111. The other adhesive film 31B is disposed along the remaining two sides of the four sides. Thereby, when the adhesive films 31A and 31B are in contact with the surrounding portion 112, the two L-shaped adhesive films 31A and 31B have a rectangular frame shape so as to surround the opening 111.

  In the modification shown in FIG. 14, the peeling film 32 has a first peeling portion 32A, a second peeling portion 32B, and a third peeling portion 32C. The release films 32A, 32B, and 32C are integrated into one release film 32.

  The first peeling portion 32A has a first covering portion 320A and a first connecting portion 321A. The first covering portion 320A is L-shaped to cover one surface 31a of one of the two L-shaped adhesive films 31A and 31B. The first connecting portion 321A connects two sides forming an L-shape in the first covering portion 320A on the side of the region where the L-shaped sandwiches the two sides.

  The first covering portion 320A is L-shaped and covers one surface 31a of the adhesive film 31A. That is, since it is the same as that of the L-shaped covering part 320 in the above-mentioned 2nd embodiment, explanation is omitted.

  The first connecting portion 321A connects portions of the two sides on the side of the first covering portion 320A on the side of the two sides forming the L-shape. As shown in FIG. 14, the first connecting portion 321 </ b> A is connected on the side of the first covering portion 320 </ b> A between the long side and the short side forming the L-shape. That is, the first connecting portion 321A is a dotted line virtually drawn on the first covering portion 320A shown in FIG. 14, that is, in a region where two sides where the first covering portion 320A is orthogonal to each other sandwich the two sides. It is connected. Therefore, the first peeling portion 32A having the first covering portion 320A and the first connecting portion 321A in the modified example shown in FIG. 14 has a trapezoidal shape of one sheet.

  The second peeling portion 32B has a second covering portion 320B and a second connecting portion 321B. The second covering portion 320B is L-shaped to cover one surface 31a of the other adhesive film 31B of the two L-shaped adhesive films 31A and 31B. The second connecting portion 321B connects the two sides forming the L-shape in the second covering portion 320B on the side where the L-shaped sandwiches the two sides. The second peeling portion 32B has the same configuration as the first peeling portion 32A, and the shape is also symmetrical in the modification shown in FIG.

  The third peeling portion 32C connects the first peeling portion 32A and the second peeling portion 32B on the side where the two L-shaped adhesive films 31A and 31B sandwich each other. In the modification shown in FIG. 14, the third peeling portion 32C connects the oblique sides of the first connection portion 321A and the second connection portion 321B in the shape of a right triangle, and is integrated with the first connection portion 321A and the second connection portion 321B. It has become. That is, the first connecting portion 321A, the second connecting portion 321B, and the third peeling portion 32C are integrally formed so as to fill the rectangular frame shape formed by the first covering portion 320A and the second covering portion 320B. The rectangle which made the inner circumference of four the four sides is formed.

  According to the modification shown in FIG. 14, two sides extending in different directions of the covering portions 320A and 320B and the first peeling portion 32A and the second peeling portion 32B by the connecting portions 321A and 321B and the third peeling portion 32C. The above-described effects can be obtained because the deformation of is restricted. In addition to this, two adhesive films 31 are used, and an adhesive sheet 30 in which one side 31 a of these films 31 is covered with a peeling film 32 is used. Therefore, the adhesive film 31 consisting of a plurality of sheets as described above is attached to the surrounding portion 112 at one time, and the peeling film 32 covering one surface 31 a of each adhesive film 31 is peeled off to expose one surface 31 a at a time. It can be done. Therefore, the workability in the sticking process and the peeling process in the manufacturing process of the display device 1 can be further improved.

  In the modification shown in FIG. 14, two L-shaped adhesive films 31 are combined to form a rectangular frame surrounding the opening 111, and the peeling film 32 covers one surface 31 a of the adhesive films 31. It was said that. However, the present invention is not limited to this, and may be adhesive films 31A and 31B and a peeling film 32 as shown in FIG.

  Describing in detail, the modified example shown in FIG. 15 has two L-shaped adhesive films 31A and 31B as in the modified example shown in FIG. 14, and the peeling film 32 has a first peeling portion 32A, It is a single film having a second peeling portion 32B and a third peeling portion 32C.

  In the modification shown in FIG. 15, two L-shaped adhesive films 31A and 31B are combined with each other to form a part of a rectangular frame shape. In other words, although not shown, the two L-shaped adhesive films 31A and 31B are arranged along the four sides forming the opening 111 so as to sandwich a part of the rectangular opening 111, and among the four corners of the rectangle It is arranged to sandwich at least two corners. Thus, when the adhesive films 31A and 31B are in contact with the surrounding portion 112, the two L-shaped adhesive films 31A and 31B have two angles of 90 degrees so as to sandwich the opening 111. It becomes a bracket shape.

  In the modification shown in FIG. 15, the peeling film 32 has a first peeling part 32A, a second peeling part 32B and a third peeling part 32C, and each of these peeling parts 32A as in the modification shown in FIG. , 32B and 32C are integrated to form a single release film 32.

  The first peeling portion 32A has a first covering portion 320A and a first connecting portion 321A, as in the modification shown in FIG. The first covering portion 320A is L-shaped to cover one surface 31a of one of the two L-shaped adhesive films 31A and 31B. The first connecting portion 321A connects two sides forming an L-shape on the side of the region where the L-shape is sandwiched.

  The description of the first covering portion 320A is the same as that of the modification shown in FIG.

  The first connecting portion 321A connects the two sides on the side of the first covering portion 320A between the two sides forming the L-shape. As shown in FIG. 15, the first connecting portion 321A is connected at the side of the first covering portion 320A between the two sides forming the L-shape. That is, the first connecting portion 321A is a dotted line virtually drawn on the first covering portion 320A shown in FIG. 15, that is, in a region where two sides where the first covering portion 320A is orthogonal to each other sandwich the two sides. It is connected. That is, as shown in FIG. 15, the shape of the first connection portion 321A is a right triangle, and two sides forming the right angle of the right triangle are connected to the first covering portion 320A. Therefore, in the modification shown in FIG. 15, the first peeling portion 32A having the first covering portion 320A and the first connecting portion 321A has a trapezoidal shape of one sheet. As described above, the first connecting portion 321A may connect parts of the two sides on the side of the first covering portion 320A where the two sides forming the L shape sandwich.

  As shown in FIG. 15, the second peeling portion 32B has the same configuration as the first peeling portion 32A, and the shape is also symmetrical in the modification shown in FIG.

  As shown in FIG. 15, the third peeling portion 32C connects the first peeling portion 32A and the second peeling portion 32B on the side where the two L-shaped adhesive films 31A and 31B sandwich each other. In the modification shown in FIG. 15, the third peeling part 32C connects the oblique sides of the first connection part 321A and the second connection part 321B in the shape of a right triangle, as in the modification shown in FIG. It is integral with the portion 321A and the second connecting portion 321B. That is, the first connecting portion 321A, the second connecting portion 321B, and the third peeling portion 32C are formed so as to fill the entire region side of the region surrounded by or enclosed by the bracket shape formed by the first covering portion 320A and the second covering portion 320B. There is. That is, it can be said that the peeling film 32 has the third peeling portion 32C connecting all three bracket-shaped sides formed by the first covering portion 320A and the second covering portion 320B inside the parenthesis shape.

  According to the modification shown in FIG. 15, although the shapes of adhesive films 31A and 31B and release film 32 are different from those of the modification shown in FIG. It exerts an action effect.

  As mentioned above, the preferable embodiment about an adhesive sheet provided with two L-shaped adhesive films and the peeling film which covered one side of an adhesive film and which consists of 1st, 2nd and 3rd peeling part was described. However, the present disclosure is not limited to these, and the shape of the release film can be appropriately designed as long as the features of the release portions described above are satisfied.

Third Embodiment
The present embodiment is another embodiment based on the above-described embodiments. Therefore, the description of the parts common to the above-described embodiments is omitted.

  Although the peeling film 32 in the above-mentioned embodiment was made into rectangular shape, the peeling film 32 has the handle part 322 in this embodiment. The handle portion 322 is formed on one of two sides of the rectangular covering portion 320 extending in the short side direction. The handle portion 322 extends outward from the outer periphery of the covering portion 320, as shown in FIG. The shape of the handle portion 322 is a shape that can hold the handle portion 322 in the peeling process. That is, in the manufacturing process of the display device, the handle portion 322 can be sandwiched by at least a general worker's thumb and forefinger, and the shape is such that the worker does not touch the adhesive film 31 in the peeling process. Good.

  In addition, you may form in one side among two sides extended in a long side direction in the rectangular-shaped covering part 320. FIG. Moreover, in this embodiment, although the peeling film 32 has one handle part 322, you may have more than one. Furthermore, since the handle portion 322 may be formed on the outer periphery of the release film 32 having a rectangular shape, the handle portion 322 may be formed on the corner of the release film 32.

  Moreover, in this embodiment, although the handle part 322 is extended outside from the outer periphery of the coating | coated part 320, as shown in FIG. 17, you may form in the connection part 321. As shown in FIG. As shown in FIG. 17, the release film 32 has the handle 322 lifted up from the opposite surface of the side on which the adhesive film 31 is overlapped, so that the lifted handle 322 can be grasped.

  According to the present embodiment, as shown in FIG. 18, the peeling film 32 can be peeled from the adhesive film 31 by gripping the handle portion 322 in the above-described peeling process. Therefore, compared to the case where the release film 32 does not have the handle portion 322, the release film 32 can be easily removed. Furthermore, the peeling film 32 can be peeled off without directly touching the adhesive film 31, and adhesion of foreign substances such as dust and dirt to the adhesive film 31 can be reduced. Therefore, the workability in the peeling process in the manufacturing process of the display device can be further improved.

  In addition, although the adhesive film 31 and the coating | coated part 320 in 3rd Embodiment were made into rectangular shape, also when the adhesive film 31 and the coating | coated part 320 are L-shaped as mentioned above, the handle part 322 is attached to the peeling film 32. It can be formed.

Fourth Embodiment
The present embodiment is another embodiment based on the above-described embodiments. Therefore, the description of the parts common to the above-described embodiments is omitted.

  In the present embodiment, the housing 110 has a position designation unit 113 that designates the position at which the adhesive film 31 is disposed. Furthermore, although the peeling film 32 in the above-mentioned embodiment was rectangular shape, in this embodiment, the peeling film 32 has the positioning part 323 in which the sticking position of the adhesive sheet 30 is decided by contacting the position designation part 113. doing.

  The positioning portion 323 is formed on the outer periphery of the peeling film 32. In the present embodiment, as shown in FIG. 19, the positioning portion 323 is formed on two sides extending in the long side direction out of the four sides forming the rectangular covering portion 320, from the outer periphery of the covering portion 320 to the outside It is formed towards. The portion where the positioning portion 323 is formed is formed to correspond to the position designation portion 113 in the attaching process as described later. The positioning portion 323 has a hole 323a. In the present embodiment, although the shape of the hole 323a is circular, it can be designed arbitrarily according to the position designation unit 113 described later. The portion where the positioning portion 323 is formed is not limited to a part of the two sides extending in the long side direction of the covering portion 320 as described above, but may be a part of the two sides extending in the short side direction. Furthermore, one positioning portion 323 may be formed on any one of two sides extending in the long side direction of the covering portion 320, and one positioning portion 323 may be formed on one of two sides extending in the short side direction. Moreover, although the positioning part 323 was formed in two places in the coating | coated part 320 in the above-mentioned, it may be formed only in one place, and may be formed in three or more places.

  The position designation unit 113 is formed in the housing 110 and has a protrusion shape that protrudes toward the outside of the housing 110. In the present embodiment, as shown in FIG. 20, the position designation unit 113 is formed in the surrounding unit 112, and is a cylindrical protrusion.

  In the sticking step in the present embodiment, first, the adhesive sheet 30 is disposed so as to penetrate the holes 323 a of the positioning portion 323 corresponding to one of the position designation portions 113. Next, the other position designation unit 113 is made to penetrate through the hole 323 a of the corresponding positioning unit 323. At this time, the inner diameter portion of the hole 323 a contacts the side surface of the protrusion shaped portion of the position designation unit 113. Next, the back surface 31 b of the adhesive film 31 of the adhesive sheet 30 is brought into contact with the surrounding portion 112. As shown in FIG. 20, since the cylindrical protrusion of the position designation part 113 is inserted into the hole 323a of the positioning part 323, the movement of the adhesive sheet 30 is restricted in the sticking step.

  According to the present embodiment, the adhesive sheet 30 is disposed such that the position designation unit 113 of the housing 110 and the positioning unit 323 of the peeling film 32 are in contact with each other. That is, the adhesive sheet 30 is disposed such that the protrusion of the position designation unit 113 penetrates the hole 323 a of the positioning unit 323. Since the adhesive sheet 30 can be stuck so that it may arrange | position to the predetermined | prescribed position of the housing | casing 110 by this, the adhesive film 31 can be stuck simply to a predetermined position.

  As a modification of the adhesive sheet 30 of the present embodiment, there is an adhesive sheet 30 as shown in FIG. Unlike the above-described embodiment, the adhesive sheet 30 is positioned by bringing the peripheral portion of the positioning portion 323 into contact with the position designation portion 113.

  As shown in FIG. 21, the positioning portion 323 in this modification is formed along two sides of the outer periphery of the covering portion 320 extending in the long side direction. That is, the positioning portion 323 protrudes outward from the covering portion 320 corresponding to two sides extending in the long side direction, and is connected to the covering portion 320. The outer periphery of the positioning unit 323, that is, the side not connected to the covering unit 320, abuts on the side surface of the position designation unit 113 described later in the attaching process.

  As shown in FIG. 22, the position designation unit 113 in this modification protrudes toward the outside of the housing 110 and has a wall shape extending in the left-right direction. Moreover, it can be said that it is a wall shape extending in the long side direction of the opening 111. Two position designation units 113 are formed, and are formed to be parallel to each other. As shown in FIG. 19, one of the two position designation parts 113 is formed on the windshield 410 side, and the other is formed on the occupant 430 side. That is, in the position designation unit 113, one is formed in the front portion 112a of the surrounding portion 112, and the other is formed in the rear portion 112b.

  In the sticking step in the modification, first, one side of the opposite sides of the positioning portion 323 of the peeling film 32 is brought into contact with the side surface on the opening 111 side of the one position designation portion 113. Next, the other side of the positioning unit 323 is brought into contact with the side surface of the other position designation unit 113. At this time, as shown in FIG. 22, if the distance between the edge of the positioning portion 323 and the dotted line where the adhesive film 31 is combined is a predetermined distance, the adhesive film can be simply brought into contact with the position designation portion 113. 31 can be disposed at a predetermined position of the enclosing unit 112. Furthermore, since the outer peripheries of both positioning portions 323 abut the two wall-shaped position designation portions 113, both position designation portions 113 can limit the movement of the adhesive sheet 30 in the sticking step. Therefore, the same operation and effect as those of the embodiment shown in FIGS. 19 and 20 can be obtained.

  In the modification, the position designation portion 113 is in the shape of a wall extending in the long side direction of the opening portion 111, and the positioning portion 323 is formed on the two long sides of the peeling film 32, but is not limited thereto. , May extend in the short side direction. Furthermore, the position designation unit 113 and the positioning unit 323 may be formed on both the long side direction and the short side direction. In this case, the position designation portion 113 is formed in a wall shape formed on the surrounding portion 112 and surrounding the opening portion 111, and the positioning portion 323 is formed all around the dotted line portion of the outer periphery where the adhesive film 31 is combined. It will be done. Further, as shown in FIG. 22, the position designation unit 113 is in the form of a wall continuously extending in the long side direction, but may be discontinuous.

(Other embodiments)
As mentioned above, although display 1 provided with case 110 with rectangle-like opening 111 was explained as an example of a display of this indication, the meaning of a rectangle means that all four corners are strictly 90 degrees. It does not have to have an angle. That is, for example, four corners may be rounded, and each side may be orthogonal at 90 degrees. Furthermore, even if the shape of the opening is an arbitrary square, the present disclosure can be applied, and the same operation and effect can be obtained.

  Moreover, although HUD which is an example of a display apparatus of this indication was demonstrated, this indication does not restrict to this, but discloses various display apparatuses which have the above projection parts, a housing | casing, a protection member, and an adhesive film. For example, as another display device of the present disclosure, there is an image display panel that displays an image. The image display panel as shown in FIG. 23 includes the projection unit 100, the housing 110, the protective member 20, and the adhesive film 31. The housing 110 is formed with an opening 111 and has a surrounding portion 112 which is a portion surrounding the opening 111. Then, the adhesive film 31 is disposed in the surrounding portion 112, thereby preventing the entry of foreign matter into the inside of the housing 110 in which the projection portion 100 is accommodated from the opening portion 111. The protective member 20 is fixed to the housing 110 by an adhesive film 31 disposed so as to surround substantially the entire circumference of the surrounding portion 112. Since the manufacturing method in such an image display panel also includes the above-mentioned sticking step, peeling step, and arranging step, the adhesive sheet 30 in each of the above-described embodiments can be applied, and the same function and effect can be exhibited. .

Reference Signs List 1 display device 10 display unit 100 projection unit 101 back light 102 liquid crystal panel 103 light guide unit 103 a plane mirror 103 b concave mirror 110 housing 111 opening 112 Reference numeral 20: protection member, 200: peripheral portion, 210: central portion, 30: adhesive sheet, 31: adhesive film, 31a: one surface, 31b: back surface, 32: peel film, 320: covering portion, 321: connection Sections 40 Vehicles 400 Instrument panels 401 Housings 402 Openings 410 Windshields 410a Projection planes 420 Virtual images 430 Passengers 430a Eye points

Claims (8)

A projection unit (100) that emits light to display various information;
A housing (110) having a rectangular opening (111) that accommodates the projection unit and allows light emitted from the projection unit to pass through and a surrounding unit (112) that is a portion surrounding the opening; A display (10) having a
A protective member (20) which is disposed in the housing so as to cover the opening, has a peripheral portion (200) which is a portion facing the surrounding portion, and has transparency.
Producing a display device comprising: a rectangular frame-like adhesive film (31) adhering the housing and the protective member, having one surface (31a) and a back surface (31b), and enclosing the rectangular opening portion Method,
Peeling having a rectangular frame-shaped covering portion (320) covering the one surface of the adhesive film and a connecting portion (321) for connecting at least any two sides of four sides forming the rectangular frame shape in the covering portion A step of preparing an adhesive sheet (30) having a film (32) and the adhesive film, the indicator, and the protective member;
A sticking step of the back surface of the adhesive film is stuck the adhesive sheet so as to be in contact with the surrounding portion,
A peeling step to peel off the release film from the adhesive film,
Exposed the one face and in contact with said peripheral portion, seen including a bonding step, the bonding the said protective member and said indicator,
The surrounding portion and the peripheral portion have curved portions,
The housing has a position designation unit (113) for designating a position where the adhesive film is disposed,
The release film has a positioning portion (323) for determining the application position of the adhesive sheet so that the adhesive film is disposed at a predetermined position in the surrounding portion by contacting the position designation portion. ,
Each of the position designation unit and the positioning unit is formed at a plurality of locations,
At least one of the plurality of locations is the curved portion,
The method for manufacturing a display device , in the sticking step, positioning the sticking position of the adhesive sheet with respect to the housing by bringing the position designation portion and the positioning portion into contact at the plurality of positions, and sticking .   The display device according to claim 1, wherein the connecting portion connects, in a frame, any one set of two orthogonal sides of two orthogonal sides forming a rectangular frame shape in the covering portion. Production method.   The method according to claim 1, wherein the connecting portion connects any one of the two opposite sides forming a rectangular frame shape in the covering portion within the frame.   The method for manufacturing a display device according to claim 1, wherein the connecting portion connects four sides forming a rectangular frame shape in the covering portion in a frame. A projection unit (100) that emits light to display various information;
A housing (110) having a rectangular opening (111) that accommodates the projection unit and allows light emitted from the projection unit to pass through and a surrounding unit (112) that is a portion surrounding the opening; A display (10) having a
A protective member (20) which is disposed on the outside of the housing so as to cover the opening, and has a peripheral portion (200) which is a portion facing the surrounding portion;
And an adhesive film (31) having a surface (31a) and a back surface (31b), which adheres the housing and the protective member.
The method for manufacturing a display device, wherein the adhesive film is L-shaped along a part of the rectangular opening.
An L-shaped covering portion (320) covering the one surface of the L-shaped adhesive film and a connecting portion (321) for connecting the two sides on the side of two sides forming the L-shape in the covering portion An adhesive sheet (30) having a release film (32) having the adhesive film and the adhesive film, a preparation step of preparing the display and the protective member;
A sticking step of the back surface of the adhesive film is stuck the adhesive sheet so as to be in contact with the surrounding portion,
A peeling step to peel off the release film from the adhesive film,
Exposed the one face and in contact with said peripheral portion, seen including a bonding step, the bonding the said protective member and said indicator,
The surrounding portion and the peripheral portion have curved portions,
The housing has a position designation unit (113) for designating a position where the adhesive film is disposed,
The release film has a positioning portion (323) for determining the application position of the adhesive sheet so that the adhesive film is disposed at a predetermined position in the surrounding portion by contacting the position designation portion. ,
Each of the position designation unit and the positioning unit is formed at a plurality of locations,
At least one of the plurality of locations is the curved portion,
In the manufacturing method of a display device, in the sticking step, the sticking position of the adhesive sheet with respect to the housing is positioned by bringing the position designation portion and the positioning portion into contact at the plurality of positions, and the sticking is performed. . A method of manufacturing a display device comprising two L-shaped adhesive films, comprising:
The release film has a first release section (32A), a second release section (32B) and a third release section (32C),
The first peeling portion is formed by an L-shaped first covering portion (320A) covering the one surface of one of the adhesive films, and the two sides in a region between two sides forming an L shape in the first covering portion. Has a first connecting portion (321A) for connecting the
The second peeling portion is formed by an L-shaped second covering portion (320B) covering the one surface of the other adhesive film, and the two sides on the side of two sides forming an L shape in the second covering portion. It has a second connection part (321B) that connects the
The method according to claim 5, wherein the third peeling portion connects the first peeling portion and the second peeling portion on an area side where the adhesive films sandwich each other. A projection unit (100) that emits light to display various information;
A housing (110) having a rectangular opening (111) that accommodates the projection unit and allows light emitted from the projection unit to pass through and a surrounding unit (112) that is a portion surrounding the opening; A display (10) having a
A protective member (20) which is disposed on the outside of the housing so as to cover the opening, and has a peripheral portion (200) which is a portion facing the surrounding portion;
And an adhesive film (31) having a surface (31a) and a back surface (31b), which adheres the housing and the protective member.
The adhesive film is L-shaped along a part of the rectangular opening,
A method of manufacturing a display device comprising two L-shaped adhesive films, comprising:
An L-shaped covering portion (320) covering the one surface of the L-shaped adhesive film and a connecting portion (321) for connecting the two sides on the side of two sides forming the L-shape in the covering portion An adhesive sheet (30) having a release film (32) having the adhesive film and the adhesive film, a preparation step of preparing the display and the protective member;
Attaching the adhesive sheet such that the back surface of the adhesive film is in contact with one of the surrounding portion and the peripheral portion;
A peeling step of peeling the peeling film from the adhesive film;
Bonding the display and the protective member by bringing the exposed one surface into contact with the other of the surrounding portion of the housing and the peripheral portion of the protective member;
The release film has a first release section (32A), a second release section (32B) and a third release section (32C),
The first peeling portion is formed by an L-shaped first covering portion (320A) covering the one surface of one of the adhesive films, and the two sides in a region between two sides forming an L shape in the first covering portion. Has a first connecting portion (321A) for connecting the
The second peeling portion is formed by an L-shaped second covering portion (320B) covering the one surface of the other adhesive film, and the two sides on the side of two sides forming an L shape in the second covering portion. It has a second connection part (321B) that connects the
The said 3rd peeling part is a manufacturing method of the display apparatus which has connected the said 1st peeling part and the said 2nd peeling part in the area | region side which the said adhesive films sandwich. The release film has a handle portion (322),
The method for manufacturing a display device according to any one of claims 1 to 7 , wherein when the peeling film is peeled, the handle portion is held to peel the peeling film.

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