JP2006048098A - Portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve waterproof performance of a portable terminal having a display part. <P>SOLUTION: In this portable terminal 1, a case body 10 is formed with an opening part 13. A display window 30 is installed in the opening part 13 such that the display window 30 overlaps the case body 10 in the entire circumference of the opening part 13, and a display panel 41 is installed positionally correspondingly to the opening part 13. A double-sided adhesive tape 60 that is a first waterproof member is interposed between the case body 10 and the display window 30 in the entire circumference of the opening part 13, and tightly seals a gap between the case body 10 and the display window 30. A second waterproof member 70 is interposed between the case body 10 and the display panel 41, and tightly seals a gap between the case body 10 and the display panel 41. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mobile terminal, and more particularly, to a waterproof structure of a display unit included in the mobile terminal.

For example, Patent Document 1 discloses a waterproof structure of a liquid crystal display (LCD) provided in a mobile terminal. Specifically, the entire periphery of the end of the LCD is covered with a waterproof member, and the LCD is attached to the case body together with the waterproof member so that the LCD display screen is exposed from an opening formed in the case body. . By this waterproof member, the space between the LCD and the case main body is hermetically sealed, and entry of water drops into the inside is suppressed.
JP 2004-70657 A

  However, in the waterproof structure disclosed in Patent Document 1, a waterproof measure is taken only between the case main body and the display panel, and it is difficult to expect waterproof performance at a high level.

  Accordingly, an object of the present invention is to improve the waterproof performance of a mobile terminal including a display unit.

  In order to solve such a problem, the present invention provides a case main body provided with an opening, a sheet-like transparent member attached to the opening so as to overlap the case main body on the entire circumference of the opening, and the opening And a display panel attached correspondingly in position, a first waterproofing member interposed between the case body and the transparent member around the entire periphery of the opening, and sealing between the case body and the transparent member, Provided is a portable terminal having a second waterproof member interposed between a case main body and a display panel and sealing between the case main body and the display panel.

  Here, in the present invention, the first waterproof member is preferably an adhesive or a double-sided adhesive tape.

  In the present invention, the second waterproof member is preferably an elastic member.

  According to the present invention, the first waterproof member seals the gap between the transparent member and the case body, and the second waterproof member seals the gap between the case body and the display panel. By such multiple waterproof measures, the display panel opening provided in the case body is tightly sealed, so that the airtightness of the case body can be remarkably enhanced. Thereby, the infiltration of water droplets into the case main body is suppressed, and the waterproof performance of the display panel and thus the portable terminal can be realized at a high level.

  FIG. 1 is an external perspective view of a mobile terminal according to the present embodiment. This portable terminal 1 is a portable information terminal used outdoors such as a golf course, for example, and various information regarding the hole such as the position of the green cup, its current position on the hole, and the number of remaining yards to the cup. To the golfer. The mobile terminal 1 is equipped with a GPS (Global Positioning System), and the current position of the mobile terminal 1 is calculated in real time. The mobile terminal 1 is mainly composed of a case main body 10, an exterior rubber 20, and a display window 30. The case main body 10 is a plastic casing having a substantially rectangular parallelepiped shape, and its corners are chamfered in a curved shape in consideration of a fit feeling during carrying. An elastic exterior rubber 20 is attached to the outside of the case body 10, thereby ensuring a grip feeling during carrying. The user (golfer) accesses necessary information by pushing the operation unit 21 provided on the exterior rubber 20 while referring to the information displayed in the display window 30.

  FIG. 2 is an exploded perspective view of the mobile terminal 1. The case body 10 includes a front case 11 and a rear case 12. The front case 11 includes a front surface portion 11 a corresponding to the front surface of the case main body 10, and a side surface portion 11 b formed integrally with the front surface portion 11 a and corresponding to the side surface of the case main body 10. An opening 13 having a substantially rectangular opening shape (hereinafter referred to as “first opening”) is formed in the approximate center of the front surface portion 11a. In addition, openings (hereinafter referred to as “second openings”) 14 having a substantially circular opening shape are formed in a plurality of locations (four locations including portions not shown in the present embodiment) on the side surface portion 11b. ing. On the other hand, the rear case 12 constitutes the rear surface of the case body 10 and can be coupled to the front case 11.

  The exterior rubber 20 is a frame-like elastic member and is attached to the side surface portion 11 b of the front case 11. On the outer surface 20a of the exterior rubber 20, an operation unit 21 that is pushed by a user is provided. The operation portion 21 is formed integrally with the exterior rubber 20, and the formation position thereof corresponds to the formation position of the second opening 14 in the side surface portion 11b. On the other hand, a protrusion 22 extending toward the inside of the case body 10 is provided on the inner side surface 20 b of the exterior rubber 20 in a position corresponding to the operation portion 21. When the exterior rubber 20 is attached to the case main body 10, the protrusion 22 is inserted through the second opening 14. In addition, in order to improve the sealing performance of the case body 10, waterproof packings 50 are fitted in the respective second openings 14.

  The display window 30 is a sheet-like transparent member, and is attached to the first opening 13 so as to overlap the case main body 10 over the entire circumference of the first opening 13. The display window 30 is attached by a double-sided adhesive tape 60 as a waterproof member. The double-sided adhesive tape 60 is provided in a substantially rectangular frame shape along the first opening 13, and adheres the display window 30 and the case body 10 to each other around the entire circumference of the first opening 13. Yes. At the mounting position of the display window 30 in the case body 10, a mounting bottom surface 11 c is formed that is recessed downward by an amount corresponding to the thickness of the display window 30 as compared with the peripheral portion. Therefore, in a state where the display window 30 is attached to the case body 10, the display window 30 and the front surface portion 11a are substantially flush with each other, so that the design is not impaired.

  A printed circuit board 40 (hereinafter referred to as “PCB”) is accommodated in the pair of cases 11 and 12. Various electronic components necessary for information processing are mounted on the PCB 40. Examples of components mounted on the PCB 40 include a display panel 41 responsible for a display function, a GPS module 42 responsible for a positioning function, a switch 43 that is pushed by the operation unit 21, and the display panel 41 is particularly important in this embodiment. It becomes. The display panel 41 is a liquid crystal panel or an organic EL panel, for example, and is mounted on the PCB 40 in a position corresponding to the first opening 13 provided in the front case 11.

  When the PCB 40 is stored in the case body 10, first, the PCB 40 is placed on the placement portion 12 a provided in the rear case 12. Next, a substantially rectangular frame-shaped waterproof member 70 is prepared. The waterproof member 70 corresponds in shape to the outer peripheral frame 41a provided on the entire periphery of the end of the display panel 41, and has elasticity such as rubber, resin, foam (for example, It is formed of a member having a hardness of 50 ° or less) and excellent water impermeability. Then, after the waterproof member 70 is superimposed on the outer peripheral frame 41 a, the front case 11 is coupled to the rear case 12. The PCB 40 is fixedly held by the coupling of the cases 11 and 12. In such a storage state, the display panel 41 is exposed from the first opening 13 through the display window 30.

  FIG. 3 is a cross-sectional view of the mobile terminal 1 shown in FIG. The portable terminal 1 is provided with a double waterproof measure using a double-sided adhesive tape 60 and a waterproof member 70. As a first countermeasure, a double-sided adhesive tape 60 is interposed between the display window 30 and the case body 10 over the entire circumference of the first opening 13. As a result, the space between the display window 30 and the case body 10 is sealed, and the airtightness of the case body 10 is improved. As a second countermeasure, a frame-shaped waterproof member 70 is interposed between the case body 10 and the display panel 41. Thereby, the space between the case body 10 and the display panel 41 is tightly sealed, and the airtightness of the case body 10 is improved.

  By taking such a double waterproof measure, the sealing performance of the first opening 13 provided for the display panel 41 is remarkably improved. Thereby, compared with a simple waterproof structure in which only the space between the case body 10 and the display panel 41 is sealed, the airtightness of the case body 10 is increased, and water droplets from the display panel opening 13 to the inside of the case body are increased. It is possible to suppress intrusion at a high level. Therefore, it is possible to improve the waterproof performance of the display panel 41 and, consequently, the portable terminal 1. Further, as a result, it is possible to effectively suppress the occurrence of failure / damage of the mobile terminal 1 due to water soaking, and it is not necessary to worry about the influence of rain or the like at the time of use. 1 can be realized.

  In the present embodiment, the double-sided adhesive tape 60 is used to attach the display window 30. The double-sided adhesive tape 60 not only simply bonds the display window 30 and the case main body 10 but also temporarily assumes the waterproof function of the display panel 41. Thereby, it becomes possible to take a waterproof measure with a double structure of the double-sided adhesive tape 60 and the waterproof member 70, and the waterproof performance of the mobile terminal 1 can be improved. The waterproof member for sealing between the case body 10 and the display window 30 is not limited to the double-sided adhesive tape 60, and an adhesive or the like may be used. Even in such a case, double waterproof performance can be obtained as in the above-described embodiment.

  Furthermore, in this embodiment, the waterproof member 70 is formed of a water-impermeable elastic member. The waterproof member 70 has not only a waterproof function but also a function of absorbing the impact by its own elasticity when an impact is applied to the mobile terminal 1. Therefore, it is possible to effectively prevent the display panel 41 from being damaged. As a result, not only the waterproof property but also the impact resistance can be improved, so that the mobile terminal 1 that is convenient for the user can be realized.

  In addition, the portable terminal which concerns on this invention is not limited to the portable terminal 1 for golf courses mentioned above, The navigation terminal used for uses, such as various information terminals which can be used outdoors, for example, a ski resort or mountain climbing It can be widely applied to mobile phones, PDAs and the like.

External perspective view of portable terminal according to the present embodiment An exploded perspective view of a portable terminal Cross section of mobile device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile terminal 10 Case main body 11 Front case 11a Front part 11b Side part 11c Mounting bottom surface 12 Rear case 12a Mounting part 13 1st opening part 14 2nd opening part 20 Exterior rubber 20a Outer side surface 20b Inner side face 21 Operation part 22 Protrusion 30 Display window 40 Printed circuit board (PCB)
41 Display Panel 41a Peripheral Frame 42 GPS Module 43 Switch 50 Waterproof Packing 60 Double-sided Adhesive Tape 70 Waterproof Member

Claims (3)

On mobile devices,
A case body provided with an opening,
A sheet-like transparent member attached to the opening so as to overlap the case main body in the entire periphery of the opening;
A display panel mounted in position corresponding to the opening;
A first waterproofing member interposed between the case main body and the transparent member in the entire periphery of the opening, and sealing between the case main body and the transparent member;
A portable terminal comprising: a second waterproof member interposed between the case body and the display panel and sealing between the case body and the display panel.   The portable terminal according to claim 1, wherein the first waterproof member is an adhesive or a double-sided adhesive tape.   The portable terminal according to claim 1, wherein the second waterproof member is an elastic member.

Images