JPWO2013018544A1 - Electronics - Google Patents

Abstract

The present invention includes a display panel and a housing (4) provided with the display panel. On the back surface (4b) of the housing (4) facing the display panel, a pair of arcuate bulges (in the position near the center of the back surface (4b) from both ends of the outer edge of the housing (4) ( 7), and a pair of arcuate bulges (7) are continuously formed integrally.

Description

  The present invention relates to an electronic device having a display panel, and particularly to a shape of a housing.

  As display panels for displaying information, portable terminal devices such as so-called smartphones and tablet PCs (personal computers) having a touch panel are known.

  In this type of portable terminal device, in order to operate the display panel while holding the casing, it is required to ensure the ease of holding the casing. For example, Patent Document 1 discloses a portable terminal device configured to easily hold a casing by forming a groove along the outer edge of the casing.

  In addition, in the mobile terminal device, in order to reduce the thickness and ensure the ease of holding, the arrangement of the electronic components in the housing is devised, and the region where the electronic components in the housing are not mounted is partially thinned. There is something.

JP 2008-233985 A

  By the way, in the portable terminal device described above, when the casing is thinned, the mechanical strength of the casing, in particular, the bending rigidity is lowered.

  In particular, in a smartphone or tablet PC including a touch panel display, a pressing force acts on the casing when the touch panel is operated, so it is necessary to ensure the bending rigidity of the casing.

  In addition, as described above, there is a portable terminal device having a shape in which an edge portion (corner portion) is included in the back surface of the housing by partially thinning the central portion of the back surface of the housing. In such a portable terminal device, for example, when a portable terminal device is placed on a desk and a touch panel is operated, there is a problem that stress concentrates on an edge portion of a casing that is in contact with the desk. In such a case, there is a risk of damage to the housing or the touch panel display.

  Then, an object of this invention is to provide the electronic device which can solve the subject of the said related technique. An example of an object of the present invention is to provide an electronic device that can prevent a reduction in mechanical strength of a casing that has been reduced in thickness.

  In order to achieve the above-described object, an electronic apparatus according to the present invention includes a display panel and a housing provided with the display panel. A pair of arcuate bulges are provided on the rear surface of the housing facing the display panel at positions near the center of the rear surface from both ends of the outer edge of the housing. Are integrally formed.

  ADVANTAGE OF THE INVENTION According to this invention, the fall of the mechanical strength of the housing | casing by which thickness reduction was achieved can be prevented, and damage to a housing | casing and a display panel can be prevented.

It is a perspective view which shows the portable terminal device of embodiment. It is a perspective view which shows the portable terminal device of embodiment from the back side of a housing | casing. It is a top view which shows the portable terminal device of embodiment. It is a side view which shows the shape of the back surface of the housing | casing of the portable terminal device of embodiment. It is a schematic diagram shown in order to demonstrate the stress which acts on a housing | casing at the time of use of the portable terminal device of embodiment.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, the perspective view of the portable terminal device of embodiment is shown. In FIG. 2, the perspective view of the portable terminal device of embodiment is shown from the back side of a housing | casing. In FIG. 3, the top view of the portable terminal device of embodiment is shown.

  As shown in FIGS. 1 and 2, the mobile terminal device 1 of the embodiment includes a display panel 3 and a housing 4 provided with the display panel 3. As the display panel 3, for example, a touch panel display having a size of about 7 inches to 10 inches is used. The mobile terminal device 1 of the present embodiment is configured as a so-called pure tablet type tablet PC that does not have a cover that covers the display surface of the display panel 3.

  In FIG. 4, the side view of the shape of the back surface of the housing | casing 4 of the portable terminal device of embodiment is shown. The casing 4 is formed of a material containing carbon, and is formed of, for example, a carbon composite that is a carbon fiber reinforced carbon composite material or a carbon fiber laminated material. By using these materials, effects such as reduction in thickness, increase in rigidity, and improvement in heat dissipation by thermal diffusion can be obtained.

  In addition, the housing | casing 4 may be formed with resin materials, such as fiber reinforced resin containing a glass fiber etc., can achieve weight reduction and can ensure rigidity. Moreover, the housing | casing 4 may be formed with metal materials, such as stainless steel and aluminum, and can improve rigidity. Moreover, the housing | casing 4 may be formed with a fiber reinforced metal and only a part of housing | casing 4 may be formed with a fiber reinforced material.

  As shown in FIG. 3, an opening 5 in which the display panel 3 is disposed is provided at the center of the front surface 4 of the housing 4. The housing 4 functions as a holding portion 6 for holding the housing 4 in the vicinity of the outer edge portions on both sides of the display panel 3.

  As shown in FIG. 4, a pair of arcuate bulges 7 are provided on the back surface 4 b of the housing 4 facing the display panel 3 at positions near the center of the back surface 4 b from both ends of the outer edge of the housing 4. Is provided. The pair of arcuate bulging portions 7 are formed integrally and continuously with the center portion of the back surface 4b interposed therebetween.

  The arcuate bulge portion 7 has a bulge-shaped top portion disposed at a position close to the center side of the back surface 4 b from both ends of the outer edge of the housing 4. For this reason, when the back surface 4b side of the housing | casing 4 is set | placed on a desk, the top part of a pair of arcuate bulging part 7 will contact | connect on a desk.

  In addition, the casing 4 has a pair of arcuate bulging portions 7 formed continuously and integrally, so that the mechanical strength of the entire casing 4 and the elasticity of the entire casing 4 are ensured.

  Further, an arcuate recess 8 is formed in the center between the pair of arcuate bulges 7 on the back surface 4 a of the housing 4, and the outer edge of the housing 4 passes from the arcuate recesses 8 through the arcuate bulges 7. One curved surface that is continuous up to both ends is formed. The back surface 4b of the housing 4 is formed with a gentle arc-shaped bulging portion 7, so that it fits in the shape of the palm that holds the housing 4 and ensures stability during use.

  Further, as shown in FIG. 2, the back surface 4a of the housing 4 is such that both ends of the outer edge portion of the housing 4 in the direction orthogonal to the direction in which the arcuate bulging portions 7 are arranged are continuous with the center of the back surface 4a. The chamfered portion 9 is formed by chamfering.

  In addition, as shown in FIG. 4, the main circuit board 11 and the battery 12 are arranged in the housing 4 in parallel with the display panel 3. The main circuit board 11 is arranged on one end side in the long side direction of the rectangular display panel 3, a USB slot 14 into which a USB (Universal Serial Bus) memory 13 is inserted and removed, and an SD card into which an SD memory card is inserted and removed. A slot 16, a filling terminal 17, a SIM card slot 19 into which a SIM (Subscriber Identity Module Card) card is inserted and removed, a camera unit 21 with a lens arranged on the back side of the housing 4, an earphone jack 22, and the like are mounted. The housing 4 has a cover (not shown) that covers the various slots 14, 16, 19 and the filling terminal 17.

  As described above, the mounting component group including the camera unit 21 having a relatively large thickness among the mounting components is gathered and arranged on one end side of the housing 4, thereby reducing the thickness of the central portion of the housing 4. In addition, an appropriate thickness is secured as the holding portion 6 for holding the housing 4.

  Furthermore, as shown in FIG. 4, a vibrator 24, a microphone 25, and an antenna 26 are arranged on one end side in the long side direction of the rectangular display panel 3 inside the housing 4. The antenna 26 extends in the long side direction of the display panel 3 along the outer edge portion of the housing 4.

  The stress which acts on the back surface 4b of the housing | casing 4 when the portable terminal device 1 comprised as mentioned above is put on a desk and the display panel 3 is operated is demonstrated. In FIG. 5, the schematic diagram for demonstrating the stress which acts on the housing | casing 4 at the time of use of the portable terminal device 1 of embodiment is shown.

  As shown in FIG. 5, when operating the display panel 3, the portable terminal device 1 may be used in a state where the back surface 4b side of the housing 4 is in contact with a desk. In this case, the pressing force of the fingertip or the like operating the display panel 3 acts to press the entire housing 4 against the desk.

  In the present embodiment, the pressing force applied to the housing 4 during the operation of the display panel 3 acts on the pair of arcuate bulging portions 7. Therefore, according to the housing 4 having the pair of arcuate bulge portions 7, for example, a portion where stress concentrates on the back surface 4b as compared with a shape in which acute corner portions are formed on the back surface of the housing. This can be avoided and damage to the housing 4 and the display panel 3 can be prevented.

  As described above, according to the mobile terminal device 1 of the embodiment, the pair of arcuate bulge portions 7 are continuously formed on the back surface 4 b of the casing 4, thereby reducing the thickness of the casing 4. The mechanical strength of the casing 4 and the display panel 3 can be prevented from being damaged.

  Moreover, according to the portable terminal device 1 of embodiment, the easiness of holding at the time of use can be improved. In addition, for example, when the user is sitting, the back surface 4b of the housing 4 can be supplementarily supported by the foot by placing the arcuate recess 8 of the back surface 4b so as to overlap the leg. Thereby, the stability at the time of operation of the display panel 3 can be ensured, and the handleability of the portable terminal device 1 can be improved.

  Further, the back surface 4b of the housing 4 is provided with a pair of arcuate bulging portions 7 at positions closer to the center side of the back surface 4b from both ends of the outer edge portion. A gap is secured between the two. For this reason, when the portable terminal device 1 placed on the desk is lifted, the outer edge portion of the casing 4 of the portable terminal device 1 placed on the desk can be easily grasped with a fingertip. As a result, the housing 3 can be easily lifted from the desk, and the handleability of the mobile terminal device 1 can be improved.

  Similarly, the back surface 4b of the housing 4 is formed by forming the chamfered portions 9 at both ends of the outer edge portion of the housing 4 in the direction orthogonal to the direction in which the pair of arcuate bulging portions 7 are arranged. A gap is secured between the outer edge of the desk and the desk top. For this reason, when the portable terminal device 1 placed on the desk is lifted, the outer edge portions on both sides in the short side direction of the display panel 3 of the casing 4 of the portable terminal device 1 placed on the desk are easily grasped with the fingertips. It becomes possible. As a result, the housing 3 can be easily lifted from the desk, and the handleability of the mobile terminal device 1 can be improved.

  Moreover, when using the portable terminal device 1 on a desk, the space between the pair of arcuate bulges 7 also functions as an air conduction path, so that heat dissipation is excellent.

  The electronic device according to the present invention is not limited to the tablet PC as the information terminal device 1 of the embodiment. For example, a PDA (Personal Data Assistant), a mobile phone including a smartphone, an electronic book terminal, a portable game machine It is suitable for being used for etc.

  Although the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2011-167290 for which it applied on July 29, 2011, and takes in those the indications of all here.

1 Tablet PC
3 Display panel 4 Housing 4b Rear surface 7 Arc-shaped bulging portion 8 Arc-shaped recess

Claims (8)

A display panel, and a housing provided with the display panel,
A pair of arcuate bulges are provided on the back surface of the housing opposite to the display panel at positions near the center of the back surface from both ends of the outer edge of the housing. An electronic device in which the protruding portion is continuously formed integrally.   The electronic device according to claim 1, wherein the display panel is a touch panel display.   On the back surface of the casing, an arc-shaped recess is formed between the pair of arc-shaped bulging portions, and is configured by one curved surface continuous from the arc-shaped recess to both ends of the outer edge portion of the casing. Item 3. The electronic device according to Item 1 or 2.   4. The electronic device according to claim 1, wherein both ends of an outer edge portion of the back surface of the housing are chamfered in a direction intersecting with a direction in which the arcuate bulge portions are arranged. 5.   The electronic device according to claim 1, wherein the casing is made of a resin material.   The electronic device according to claim 1, wherein the casing is made of a metal material.   The electronic device according to claim 1, wherein the casing is made of a fiber reinforced material.   The electronic device according to claim 7, wherein the casing is made of a material containing carbon.

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