WO2013114835A1

WO2013114835A1 - Mobile terminal device

Info

Publication number: WO2013114835A1
Application number: PCT/JP2013/000360
Authority: WO
Inventors: 謙介菊井; 高橋　昇; 泰辰萬田; 長谷川　順一
Original assignee: パナソニック株式会社
Priority date: 2012-02-01
Filing date: 2013-01-24
Publication date: 2013-08-08

Abstract

Provided are: a water-stopping structure for obtaining a prescribed water-stopping performance without requiring management of a complicated assembly step; and a mobile terminal device capable of achieving a slim border for a display panel by using this water-stopping structure. This mobile terminal device is equipped with: a display panel (10) having a sound hole (10h); a sound output component (70) for outputting sound; immobilizing members (20, 61) having sound holes and having the sound output component immobilized on one side thereof, and the display panel positioned on the other side thereof; and a water-stopping member (62) comprising a circular adhesive member and being interposed between the display panel and the immobilizing members in a squashed state. Therein, the display panel (10), the water-stopping member (62), and the immobilizing members (20, 61) are configured in a manner such that the sound holes of the display panel (10) and of the immobilizing members (20, 61) are immobilized in positions connecting on the inside of the circular water-stopping member (62).

Description

Mobile terminal device

The present invention relates to a portable terminal device.

Conventionally, there is a gasket or packing as a structure for stopping the seam between members. Conventionally, in a small portable terminal device such as a cellular phone, there is a case where water is stopped between members by bonding between members using a double-sided adhesive tape.

As a technique related to the present invention, Patent Document 1 discloses a technique for adjusting the frequency characteristics of a piezoelectric speaker by attaching a polymer gel to the piezoelectric speaker.

JP 2003-219499 A

The conventional water-stopping structure using gaskets or packings requires a structure in which the gaskets or packings are sandwiched with a predetermined contact pressure and crushing amount in order to obtain a predetermined water-stopping capability.

However, in the portable terminal device, when a water stop structure is provided on the back side of the display panel, the display panel must be fixed to the casing so that water does not enter from the gap between the display panel and the casing. For this reason, a structure for holding the gasket or packing is necessary, and the display panel is fixed in a large area or the display panel is fixed in a complicated structure. There arises a problem of going against the narrowing of the frame.

Also, in the water-stop structure with double-sided adhesive tape, in order to obtain a predetermined water-stopping capacity, the assembly process controlled by a specified time and a specified contact pressure is performed in the assembly process of the device, and the member and the double-sided adhesive tape are Must be securely bonded. Therefore, in the structure of the portable terminal device in which the display panel is finally fixed or bonded to the housing and the device is assembled, it is necessary to manage the assembly process with respect to the water stop portion and the housing on the back side of the display panel. There is a problem. In addition, when predetermined assembly work is required, it is necessary to consider assembly variation, so an assembly jig is required, and further, the number of man-hours for assembly is required, which complicates the work management of the assembly process. Arise.

The object of the present invention is to eliminate the need for complicated assembly process management for structures that require water to stop between the exterior of the device, such as the sound holes and key portions of receivers or speakers, and the interior of the device. An object of the present invention is to provide a portable terminal device having a water stop structure capable of obtaining a predetermined water stop capability. Another object of the present invention is to provide a portable terminal device capable of narrowing the frame of the display panel by this water stop structure.

A portable terminal device according to an aspect of the present invention includes a display panel having a sound hole, a sound output component that outputs sound, a sound hole, and the sound output component is fixed on one side and the other. A holding member on which the display panel is disposed, and an annular member having adhesion, and a water stop member interposed between the display panel and the holding member in a crushed state. The display panel, the water stop member, and the holding member are fixed so that the sound hole of the display panel and the sound hole of the holding member communicate with each other through the inside of the ring of the water stop member. Take the configuration.

The portable terminal device which concerns on 1 aspect of this invention has the hole provided in the outer surface, and the water stop member which stops the circumference | surroundings of the said hole inside the said outer surface, The said water stop member is from gel. The structure which is the cyclic | annular member which becomes becomes.

According to the present invention, the hole portion can be water-stopped without requiring complicated assembly management in which contact pressure or contact pressure time is specified. Further, according to the present invention, it is possible to stop the sound hole portion of the display panel without requiring assembly management for a specified contact pressure or contact pressure time. Further, since the water-stopping member made of gel can reduce the size required for water-stopping, compared to the water-stopping structure using packing, gaskets, or double-sided tape, the frame of the display panel can be narrowed.

The exploded perspective view which shows the portable terminal device of this Embodiment Exploded perspective view showing intervening parts The perspective view which shows the back surface side of a sheet-metal member Sectional drawing which shows the sound hole periphery of the portable terminal device of this Embodiment

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view showing a portable terminal device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing an intervening part, and FIG. 3 is a perspective view showing a back side of a sheet metal member.

The mobile terminal device of this embodiment is a multi-function mobile phone called a so-called smartphone.

As shown in FIG. 1, the portable terminal device includes a display panel 10, a sheet metal member (corresponding to a frame member) 20, an electronic substrate 40, an electronic component 44, a battery pack 48, a housing 50, and an intervening device. A component 60 and a sound output component (speaker & receiver) 70 are provided.

In the following, unless otherwise specified, the front / rear and up / down directions of the mobile terminal device are as follows: the display panel 10 side is the front, the housing 50 side is the rear (rear side), the side on which the electronic board 40 is disposed is the upper side, and the battery pack 48. The side on which is placed will be described below.

The display panel 10 has, for example, an OLED (Organic light-Emitting Diode) formed in a planar shape, and the front surface is covered with a reinforcing panel.

A sound hole 10 h through which the output sound of the sound output component 70 passes is provided at the upper end of the display panel 10. The sound hole 10h is a through-hole, and the planar shape is formed in a long shape on one side. The sound hole 10h is formed at a position outside the display area of the display panel 10, that is, in a range where only the reinforced panel where the display element layer 12 (see FIG. 4) and the liquid crystal glass 11 (see FIG. 4) do not overlap exists. ing.

Although the water stop structure of the sound hole 10h according to the embodiment of the present invention will be described in detail later, on the back side of the display panel 10, the sound hole 10h of the display panel 10 and the sound holes 20h1 to 20h3 of the sheet metal member 20 are provided. This is realized by interposing a member (interposition member 60) for connecting the two. That is, the interposed component 60 fills a gap between the display panel 10 and the sheet metal member 20 to realize a water stop structure. Therefore, the sound hole 10h of the display panel 10 does not need to be formed in a range where only the reinforced panel exists, and may be formed in a low strength range such as the display element layer 12 or the liquid crystal glass 11.

The sheet metal member 20 is configured by pressing and bending a metal plate. The sheet metal member 20 has a substantially rectangular shape extending in the direction along the opening of the housing 50, and the standing portions 22a to 22f (FIG. 1) bent around the plate surface at a substantially right angle (L-shaped cross section). And FIG. 3). The upright portions 22a to 22f act to increase the rigidity of the sheet metal member 20.

The metal plate member 20 is provided with sound holes 20h1 to 20h3 through which the sound output from the sound output component 70 passes. The sound holes 20h1 to 20h3 are through holes having a long planar shape on one side, and are divided into three parts. In the vicinity of the sound holes 20h1 to 20h3, the above-described standing portion 22c (FIG. 3) is formed. The standing portion 22c corresponds to a reinforcing portion. Due to the divided formation of the sound holes 20h1 to 20h3 and the upright portion 22c, the rigidity of this portion of the sheet metal member 20 is maintained high.

In the sheet metal member 20, locking portions 32 that are locked to the locked portions 55 of the housing 50 are formed of resin at a plurality of locations on the left and right edges. The locking portion 32 is made of a resin formed on the sheet metal member 20 by insert molding. The locking portion 32 includes a block portion accommodated in the locked portion 55 of the housing 50 and a locking claw locked in the locking groove 55 a of the locked portion 55. Screw holes 23 are provided at the four corners of the sheet metal member 20 to be fixed to the housing 50 with screws.

The electronic board 40 is provided with circuit components that provide various functions such as a communication function, a display function, and an input / output function. In addition, a connector 41 connected to the display panel 10 via a flexible cable and a connector portion 42 to which a connector plug is connected from the outside are fixed to the electronic substrate 40.

The electronic component 44 is not particularly limited, but is a long block-shaped component on one side provided with an antenna element, an electrostatic touch sensor, and a light emitting element.

The casing 50 is a so-called bathtub type in which one wide surface is opened and an accommodation space shallower than the diameter of the opening is formed inside, and is formed of resin. A fixing surface 51 for bonding and fixing the display panel 10 is formed on the opening peripheral edge of the housing 50.

Further, a plurality of locked portions 55 for fixing the sheet metal member 20 are formed on the inner surface of the housing 50. A locking groove 55 a is formed in the locked portion 55. Further, screw holes 58 for fixing the sheet metal member 20 with screws are provided in the four corners inside the housing 50. In addition, a plug insertion hole 52 into which a connector plug is inserted from the outside is formed on the inner wall of the housing 50.

The intervening component 60 is a member that fills a gap between the display panel 10 and the sheet metal member 20 and connects the sound holes 10h of the display panel 10 and the sound holes 20h1 to 20h3 of the sheet metal member 20.

As shown in FIG. 2, the intervening part 60 having a cylindrical shape as a whole is composed of a resin block (corresponding to a block member) 61, a water stop member 62, a mesh sheet 63, a double-sided adhesive tape 64, and the like. The resin block 61 corresponds to a block member, and the resin block 61 and the sheet metal member 20 correspond to a holding member.

The resin block 61 is formed with sound holes 61h1 and 61h2 having a slightly smaller thickness than the gap between the display panel 10 and the sheet metal member 20 and a long planar shape on one side. The sound holes 61h1 and 61h2 are through holes and are divided into a plurality of parts.

The water stop member 62 is an annular member having a certain thickness, and is made of, for example, silicone hydrogel. The water-stop member 62 may be made of other materials as long as the material has adhesiveness, flexible deformability, and water-stop, and many types of gels can be employed. The water stop member 62 is formed with a predetermined thickness and height, material, and material hardness so as to collapse at a predetermined rate when the apparatus is assembled.

The water stop member 62 is disposed on one surface of the resin block 61 where the sound holes 61h1 and 61h2 are exposed so as to surround the sound holes 61h1 and 61h2, and the water stop member 62 is hot-press molded to the resin block 61. Is glued.

Although the mesh sheet 63 is shown separately in FIG. 2, it is integrally formed with the resin block 61 by insert molding. The mesh sheet 63 is arranged in layers in the resin block 61 so as to block the sound holes 61h1 and 61h2 (see FIG. 4).

The double-sided adhesive tape 64 is a water-stopping tape having adhesive surfaces on both sides, and a horizontally long sound hole 64h is formed at the center. The double-sided adhesive tape 64 is bonded so as to surround the sound holes 61h1 and 61h2 to the other surface (surface facing the sheet metal member 20) where the sound holes 61h1 and 61h2 of the resin block are exposed.

The sound output component 70 is a component that outputs sound by a piezoelectric diaphragm made of a ceramic material, and serves as a speaker and / or a receiver. The sound output component 70 has a thin plate shape, and outputs sound from a sound hole 70h provided on one side. The sound output component 70 is fixed in a state of being firmly pressed against the electronic substrate 40 and the sheet metal member 20. The sheet metal member 20 and the sound output component 70 are arranged such that the sound holes 20h1 and 20h2 and the sound hole 70h communicate with each other, and are bonded by, for example, a double-sided adhesive tape, and the periphery of the sound holes 20h1 and 20h2 and the sound hole 70h is water-stopped. Has been.

FIG. 4 is a cross-sectional view showing the vicinity of the sound hole of the mobile terminal device of the present embodiment. In this figure, 52a is a lid of the connector portion, and 52b is a packing of the lid 52a.

As shown in FIGS. 1 and 4, the portable terminal device of this embodiment includes a housing 50, a battery pack 48, an electronic substrate 40, a sound output component 70, and a sound output component 70, from the back side (below in FIGS. 1 and 4). The sheet metal member 20, the interposed component 60, and the display panel 10 are assembled in this order and fixed to each other.

At this time, the sound hole 10 h of the display panel 10, the sound holes 61 h 1, 61 h 2, 64 h of the interposition component 60, the sound holes 20 h 1 to 20 h 3 of the sheet metal member 20, and the sound hole 70 h of the sound output component 70 overlap each other and communicate with each other. Is done.

Bonding of the sheet metal member 20 and the sound output component 70 is performed by an assembly operation in which a predetermined pressure is applied for a predetermined time. By this assembling operation, a certain waterproof property can be obtained at the bonded portion. Bonding of the sheet metal member 20 and the intervening component 60 is performed after the sheet metal member 20 and the housing 50 are assembled. Bonding of the sheet metal member 20 and the intervening component 60 is performed by an assembly operation in which a specified contact pressure is applied for a specified time. By this assembling operation, a certain waterproof property can be obtained at the bonded portion.

The left and right edge portions of the sheet metal member 20 are fixed to the housing 50 at a plurality of locations mainly by the engagement between the locking portion 32 and the locked portion 55 (see FIG. 1). Further, the sheet metal member 20 and the housing 50 are fixed at the four corners with screws. With these fixing structures, the periphery of the sheet metal member 20 is firmly coupled to the housing 50 and the rigidity of the housing 50 is increased.

The display panel 10 is assembled so as to close the opening of the housing 50 in a state where the components are held in the housing 50. The entire periphery of the display panel 10 is fixed to the fixing surface 51 of the housing 50 by an adhesive.

When the display panel 10 is fixed, as shown in FIG. 4, the water stop member 62 of the intervening component 60 is crushed by the display panel 10 and closely contacts the back surface of the display panel 10. Due to the flexible deformation and adhesion of the water stop member 62, reliable water stoppage of this portion is obtained.

Accordingly, the sound hole 10h of the display panel 10, the sound holes 61h1, 61h2, and 64h of the interposition component 60, the sound holes 20h1 to 20h3 of the sheet metal member 20, and the sound hole 70h of the sound output component 70 are in communication with each other. It is in a state that communicates with the outside world. However, the space between the sound holes 61h1, 61h2, 64h, 20h1 to 20h3, and 70h and the inside of the apparatus is stopped, and the waterproofness of the space inside the apparatus can be maintained.

As described above, according to the mobile terminal device of this embodiment, the configuration of the display panel 10, the intervening component 60, and the sheet metal member 20 does not require management of an assembly process such as contact pressure or contact pressure time. Water can be stopped inside the sound hole 10h. Compared to the case where the water stop structure is configured by packing or gasket, it is not necessary to complicate the structure for fixing the display panel 10 and the housing 50 so as to withstand pressure from the inside. In addition, the range in which the display panel 10 and the housing 50 are fixed (for example, the size of the bonding surface) can be reduced to reduce the frame of the display unit.

The embodiments of the present invention have been described above.

In the above-described embodiment, the configuration in which the interposition component 60 and the sheet metal member 20 are bonded by the double-sided adhesive tape 64 has been described as an example. You may employ | adopt the structure to which the water stop structure using was applied.

Moreover, the water stop structure using gel can be applied not only to the structure for stopping water around the sound hole but also to the structure for stopping water at various portions. For example, in a mobile terminal device, a water-stopping structure using gel can be applied as a structure that stops water inside a hole of a housing that exposes a side key to the outside.

In the above embodiment, the configuration in which the interposition component 60 is provided between the sheet metal member 20 and the display panel 10 has been described as an example. However, if the sheet metal member 20 and the display panel 10 are arranged close to each other, the gel water-stopping member is directly sandwiched between the sheet metal member 20 and the display panel 10 without providing the interposition component 60. It is also possible to adopt a configuration that stops the water at this portion.

The entire contents of the description, drawings and abstract contained in the Japanese application of Japanese Patent Application No. 2012-020001 filed on February 1, 2012 are incorporated herein by reference.

The present invention is useful for a portable terminal device having a display panel.

DESCRIPTION OF SYMBOLS 10 Display panel 10h Sound hole 20 Sheet metal member 20h1-20h3 Sound hole 22c Standing part 50 Case 60 Interposition part 61 Resin block 61h1, 61h2 Sound hole 62 Water stop member 63 Mesh sheet 64 Double-sided adhesive tape 70 Sound output part 70h Sound hole

Claims

A display panel having sound holes;
Sound output parts that output sound;
A holding member having a sound hole, wherein the sound output component is fixed on one side and the display panel is disposed on the other side;
A water-stopping member that is an annular member having adhesiveness and is interposed between the display panel and the holding member;
Comprising
The display panel, the water stop member, and the holding member are fixed in an arrangement in which the sound hole of the display panel and the sound hole of the holding member communicate with each other through the inside of the ring of the water stop member.
Mobile terminal device.
The water stop member is composed of a gel molded from a silicon material,
The mobile terminal device according to claim 1.
The display panel is adhesively fixed to a housing that houses the sound output component and the holding member.
The mobile terminal device according to claim 1.
The holding member is
A frame member made of sheet metal and having a sound hole;
A block member that has a sound hole and fills a space between the frame member and the display panel;
Having
The mobile terminal device according to claim 1.
The frame member and the block member are bonded with a double-sided adhesive tape having water-stopping property,
The mobile terminal device according to claim 4.
The frame member has a reinforcing portion obtained by bending an edge portion of a plate surface into an L shape,
The sound output component is fixed in the vicinity of the reinforcing portion;
The mobile terminal device according to claim 4.
The sound hole of the frame member is divided into a plurality and provided.
The mobile terminal device according to claim 4.
The sound output component is a piezoelectric speaker that outputs sound by a piezoelectric diaphragm made of a ceramic material.
The mobile terminal device according to claim 1.
A hole provided on the outer surface;
A water stop member for stopping water around the hole inside the outer surface;
Have
The water stop member is an annular member made of gel,
Mobile terminal device.