JP6157331B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device including a member having a three-dimensional curved surface.

  For example, Patent Document 1 discloses a structure in which a protective panel is attached to a cover having a three-dimensional curved surface. In this structure, the cover attaching portion itself has a planar shape. That is, the cover and the protection panel are bonded to each other in a planar shape.

JP 2011-22382 A

In general, when a member having a three-dimensional curved surface is attached to another member, a configuration in which planar portions are attached to each other is used as in Patent Document 1 in order to ensure adhesion of the attachment surface.
In addition, some conventional liquid crystal display devices have a panel member (such as a protective panel) attached to a sheet metal frame member (hereinafter referred to as a sheet metal frame) that holds a liquid crystal panel unit including liquid crystal and its peripheral components.

In this apparatus, consider a case where the panel member is a three-dimensional curved surface molded product.
In this case, since it is difficult to process the sheet metal frame into a curved shape, the panel member and the sheet metal frame are bonded to a curved portion (panel member) and a planar portion (sheet metal frame). . For this reason, the pasting operation is difficult. In addition, the contact area is smaller than in the case of bonding between flat surfaces, and the adhesiveness is remarkably lowered, so that it is easy to peel off.

  On the other hand, although it is possible to make the bonding surface of a panel member into a planar shape, there exists a concern about the deterioration of the designability. If the sheet metal frame is replaced with a resin frame, the pasting surface can be easily processed into a curved shape. However, rigidity is required to hold a heavy object such as a liquid crystal display unit, and the internal circuit needs to be shielded from electromagnetic noise, and it is difficult to adopt a change to a resin frame.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an electronic apparatus that can improve the workability of attaching a member having a three-dimensional curved surface and the reliability of attachment. To do.

An electronic apparatus according to the present invention includes: a first member having a first sticking surface having a curved surface which is formed in a three-dimensional curved surface and forms a part of the three-dimensional curved surface; and a sheet metal is insert-molded into a resin material A second member having a second bonding surface formed of a resin material and having a curvature matching the first bonding surface, wherein the first member is a first bonding member. The attachment surface is bonded to the second attachment surface and fixed to the second member.

  According to the present invention, there is an effect that the workability of attaching a member having a three-dimensional curved surface and the reliability of attachment can be improved.

It is a front view of the electronic device concerning Embodiment 1 of this invention. It is a disassembled perspective view of the electronic device of FIG. 3 is a diagram showing an outline of attachment of a panel having a three-dimensional curved surface according to Embodiment 1. FIG. It is a figure which shows the cross section cut by the AA line of FIG.

Embodiment 1 FIG.
1 is a front view of an electronic apparatus according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the electronic device of FIG. An electronic device 1 illustrated in FIG. 1 is an electronic device that is mounted on or brought into a vehicle, such as a car navigation device or an audio device. In the example of FIG. 1, the protective panel 2 has an appearance exposed from the design panel 3. The electronic device 1 includes a protective panel 2, a design panel 3, a liquid crystal holding member 4, and a liquid crystal display unit 6 as shown in FIG.

The protection panel 2 is a first member that is formed of a resin material and has a convex three-dimensional curved surface, and is provided to protect the liquid crystal display unit 6 from an external impact. Further, the outer peripheral edge portion of the protective panel 2 serves as a curved attachment surface (first attachment surface) for attachment to the liquid crystal holding member 4.
The design panel 3 is one of the appearance members of the electronic device 1, and the liquid crystal holding member 4 that holds the liquid crystal display unit 6 is assembled with the protective panel 2 exposed.

  The liquid crystal holding member 4 is a second member formed by insert-molding a sheet metal into a resin material, and has a frame structure that holds the liquid crystal display unit 6 therein. Further, the edge portion of the liquid crystal holding member 4 is formed of a resin material, and serves as a bonding surface (second bonding surface) having a curvature matching the bonding surface of the protective panel 2. As shown in FIG. 2, a double-sided tape 5 is provided on the affixing surface, and is bonded to the protective panel 2 via the double-sided tape 5.

  The liquid crystal display unit 6 is a display unit including components such as a liquid crystal, a backlight, and a circuit board, and is housed and held in the frame of the liquid crystal holding member 4. Further, not only the liquid crystal but a display unit such as an organic EL may be substituted. In any case, since the display unit is a heavy object, rigidity is required for the holding member to hold it. In the present invention, the rigidity necessary for holding the liquid crystal display unit 6 is secured by employing the liquid crystal holding member 4 in which a sheet metal is inserted. The insert sheet metal also serves to shield electronic components mounted on the circuit board from electromagnetic noise.

FIG. 3 is a diagram showing an outline of attachment of a panel having a three-dimensional curved surface in the first embodiment. FIG. 4 is a view showing a cross section taken along line AA of FIG.
As shown in FIG. 3 (a), the outer peripheral edge of the protective panel 2 is a bonding surface 2 a having a curved surface shape, and the double-sided tape 5 is attached to the bonding surface 4 a corresponding to the edge portion of the liquid crystal holding member 4. It is pasted. As a result, the state shown in FIG.

  4A is a view schematically showing a cross section taken along line AA in FIG. 3, and FIG. 4B is an enlarged view of a portion B in FIG. 4A. The liquid crystal holding member 4 is a member obtained by insert-molding a sheet metal into a resin material as described above, and unlike the conventional sheet metal frame, the resin material portion can be easily processed into a curved shape. Therefore, in the present invention, the edge portion of the liquid crystal holding member 4 is formed of a resin material, and the curved attachment surface 4 a having a curvature matching the attachment surface 2 a of the protective panel 2 is formed.

The curvature of the affixing surface 4a is ideally the same as that of the affixing surface 2a, but the curvature may be slightly shifted in consideration of the thickness of the double-sided tape 5. That is, the affixing surface 4a may have a curvature that is similar to the degree that the degree of adhesion with the affixing surface 2a can be ensured.
Moreover, although the case where the bonding surfaces 2a and 4a were bonded together with the double-sided tape 5 was shown, you may bond together using an adhesive agent.

In the above-described example, the case where the three-dimensional curved surface molded product is the protective panel 2 is shown. However, a touch panel may be used, and a three-dimensional curved surface molded product used other than the display device can also be used.
That is, the present invention can be applied to any electronic apparatus having a structure in which a member having a three-dimensional curved surface is bonded to another member.

  As described above, according to the first embodiment, the protective panel 2 having the curved pasting surface 2a and the three-dimensional curved surface are formed by insert molding the sheet metal into the resin material. And the liquid crystal holding member 4 having a bonding surface 4a having a curvature matching the bonding surface 2a. The protective panel 2 bonds the bonding surface 2a to the bonding surface 4a to form the liquid crystal holding member 4. Fixed. Thus, since it is the shape which match | combined the curvature, the contact area of the bonding surface 2a and the bonding surface 4a increases, and adhesiveness improves markedly. Thereby, the workability of the pasting work is improved, and the reliability of the pasting can be improved because it can be firmly fixed.

  In the present invention, any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 Electronic device, 2 Protection panel, 2a, 4a Attaching surface, 3 Design panel, 4 Liquid crystal holding member, 5 Double-sided tape, 6 Liquid crystal display part.

Claims (1)

A first member formed in a three-dimensional curved surface and having a curved first pasting surface that forms part of the three-dimensional curved surface ;
A member sheet metal is inserted into the resin material, and a second member having a second attachment surface of the combined curvature formed by the resin material to the first attachment surface,
The electronic device, wherein the first member is fixed to the second member by bonding the first attachment surface to the second attachment surface.

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