JP2013005257A - Portable terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve device downsizing and an enlarged component mounting space.SOLUTION: A corner guide part 22c of an LCD frame is disposed only at a part of a side 21a of the LCD body 21 having a sealing part 25 formed thereon. The part corresponds to a corner part 21d of an LCD body 21. Thereby, a display unit 20 is configured to allow only the corner guide part 22c of the LCD frame 22 and the sealing part 25 of the LCD body 21 to protrude toward an outer periphery of the display unit 20. On the other hand, recesses 35 and 36, at which a resin part 32 is notched to expose a sheet metal member 31, are formed at portions for housing the corner guide part 22c and the sealing part 25 in a side wall 34b of a display housing part 34 formed on a front case 30. Thus, the corner guide part 22c and the sealing part 25 are housed in these recesses 35 and 36.

Description

  The present invention relates to various portable terminal devices including a liquid crystal display.

  In various communication terminals such as mobile phone terminals, and various portable terminal devices such as PDA (Personal Digital Assistants), digital cameras, music playback devices, etc., a liquid crystal display (Liquid Crystal Display: hereinafter referred to as LCD) is displayed on the display screen. Is frequently used.

  As described in Patent Documents 1 to 3, the LCD main body constitutes a display unit by being combined with a backlight module including an LCD frame, a reflective sheet, a light guide plate, and the like. The display unit is positioned and fixed within the frame of the front case by engaging a part of the LCD frame with the front case constituting the housing of the device using the LCD.

  Here, Patent Document 1 discloses a configuration in which a flat LCD frame that reinforces an LCD main body is engaged with an inner peripheral surface of a front case.

  Patent Document 2 discloses a configuration in which the LCD frame has a bottom plate along the back surface of the LCD main body and a side wall that rises so as to surround the periphery of the LCD main body. This side wall protects the periphery of the LCD body and increases the strength of the LCD frame.

  Patent Documents 1 and 3 disclose a configuration in which a sheet metal is insert-molded in a resin and the LCD frame is positioned and fixed in the resin portion in order to ensure the strength of the front case.

JP 2009-239670 A JP 2010-79001 A JP 2010-258818 A

  In such a portable terminal device, the space factor of the LCD with respect to the housing tends to increase on the display surface side. In order to increase the display size of the LCD without increasing the size of the portable terminal device, it is required to make the space around the LCD as small as possible.

However, the LCD main body has a glass burr and a sealing port protruding at the outer periphery thereof. Therefore, the LCD frame needs to be formed larger than the LCD body in order to prevent damage to the LCD body.
For example, in the configuration of Patent Document 1, the flat LCD frame is formed to be larger than the external dimensions including the burr of the LCD body.
In the configuration of Patent Document 2, the LCD frame is formed so that a clearance is formed between the side wall of the LCD frame and the burrs or sealing openings of the LCD body.
As a result, the LCD frame must be large.

  On the other hand, as shown in FIG. 9, the notch 5 is formed in the side wall 1a of the LCD frame 1 in the portion corresponding to the sealing port 3a of the LCD body 3, thereby reducing the size of the LCD frame 1. Can be considered. However, even in such a configuration, a clearance is required between the side wall 1a of the LCD frame 1 and the LCD body 3 to escape the glass burr on the outer peripheral portion of the LCD body 3.

In this way, the LCD frame must be large, and the front case side is also an insert molding, so the resin that covers both sides of the sheet metal requires a certain thickness, miniaturizing the device, and mounting components There was a problem that hindered the expansion of the space.
Accordingly, an object of the present invention is to provide a portable terminal device capable of downsizing the apparatus and expanding a component mounting space.

The present invention employs the following means in order to solve the above problems.
That is, the mobile terminal device of the present invention includes a display unit having a display screen, and a housing having a display accommodating portion that accommodates the display unit. The display unit includes a display main body and a display screen of the display main body. A frame provided along a surface on the opposite side of the frame, and a protrusion that is formed on one side of the frame so as to protrude from the display body to the outer peripheral side. A wall portion opposed to a portion other than the portion and a protrusion receiving recess that is recessed toward the outer peripheral side with respect to the wall portion for receiving the protrusion are formed.

    According to the present invention, when the display unit is accommodated in the display accommodating portion of the housing, the protrusion formed on the frame is accommodated in the protrusion accommodating recess of the display accommodating portion, and the portion other than the protrusion in the frame is accommodated in the display. By facing the wall portion of the part, the frame for reinforcing the display main body can be downsized to reduce the size of the device and expand the component mounting space.

It is a perspective view which shows the external appearance of the portable terminal device which concerns on this embodiment. FIG. 2 is a perspective developed view showing the configuration of the mobile terminal device shown in FIG. 1. It is a figure which shows a display unit, (a) is a perspective view, (b) is a front view, (c) is a right view of (b). It is a front view which shows the state which assembled the display unit in the front case. It is a perspective view which shows the principal part of the display accommodating part of a front case. (A) is AA sectional drawing of FIG. 4, (b) is the principal part enlarged view of (a). (A) is CC sectional drawing of FIG. 4, (b) is the principal part enlarged view of (a). (A) is BB sectional drawing of FIG. 4, (b) is the principal part enlarged view of (a). It is a figure which shows the conventional display unit, (a) is a perspective view, (b) is a front view, (c) is a right view of (b).

    DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a best mode for carrying out a mobile terminal device according to the invention will be described with reference to the accompanying drawings. However, the present invention is not limited only to these examples.

As shown in FIG. 1, the mobile terminal device 10 is provided with a display unit 12 on one surface side of a housing 11 that includes a front case 30 and a rear case 50.
As shown in FIG. 2, the display unit 12 includes a display unit 20 incorporated in the front case 30 and a screen 40 that covers the display screen of the display unit 20.

    The display unit 20 includes a panel-shaped LCD main body (display main body) 21, an LCD frame 22 provided on the back surface of the LCD main body 21 (opposite the display surface), and a backlight disposed on the back side of the LCD main body 21. Module 23 is provided. The backlight module 23 includes a reflection sheet, a light guide plate, a light source, and the like.

    Here, as shown in FIG. 3, the LCD main body 21 is formed with a glass burr 24 on the outer periphery in the manufacturing process, and on one side thereof is a portion serving as a glass material injection port in a mold used at the time of molding. Further, a sealing portion 25 is formed to protrude.

The LCD frame 22 is for reinforcing the LCD main body 21, and has a plate-like base plate portion 22 a along the back surface of the LCD main body 21.
The base plate portion 22 a of the LCD frame 22 is formed to be larger than the outer dimensions including at least the burr 24 of the LCD main body 21.

    A guide wall (side wall) 22b that rises perpendicular to the base plate portion 22a is formed on the outer periphery of the base plate portion 22a. The guide wall 22b is formed so as to have a predetermined clearance between the corner 21d of the LCD main body 21 at the side 21a where the sealing portion 25 is formed in the LCD main body 21. In the following description, a portion of the guide wall 22b corresponding to the corner portion 21d of the LCD main body 21 is appropriately referred to as a corner guide portion (projection portion) 22c. In other words, the guide wall 22b is provided in the sealing portion 25 or a portion where the burr 24 is present on both sides of the sealing portion 25 other than the portion of the guide wall 22b corresponding to the corner portion 21d of the LCD main body 21. Absent. Accordingly, in the display unit 20, the corner guide portion 22c of the LCD frame 22 and the sealing portion 25 of the LCD main body 21 protrude outward on the side 21a where the sealing portion 25 is formed in the LCD main body 21. ing.

    The guide wall 22b can be provided over the entire length of the LCD body 21 along the three sides other than the side 21a where the sealing portion 25 is formed, and is opposed to the corner portion 21d as described above. You may provide only in the part to do. In the present embodiment, the guide wall 22b is provided over the entire length of three sides other than the side 21a where the sealing portion 25 is formed in the LCD main body 21. Then, on the guide walls 22b of the two sides 21b and 21c adjacent to the side 21a, engagement protrusions 28 and 28 that protrude toward the outer peripheral side and engage with the front case 30 are formed.

    As shown in FIGS. 2 and 4 to 8, the front case 30 is formed of an insert molded body including a sheet metal member 31 made of stainless alloy and a resin portion 32 that covers both surfaces of the sheet metal member 31.

Here, a display accommodating portion 34 for accommodating the display unit 20 is formed on one surface side of the front case 30.
The display accommodating portion 34 has a bottom surface 34a that faces the back surface of the display unit 20, and a side wall 34b that rises substantially vertically from the outer peripheral portion of the bottom surface 34a.

    As shown in FIG. 4 and FIG. 5, of the side walls 34 b surrounding the four sides of the bottom surface 34 a, the side walls 34 b on one side are cut out at both end portions and the central portion so that the sheet metal member 31 is exposed. The recessed part (projection part accommodation recessed part) 35 and the recessed part (sealing part accommodation recessed part) 36 which were made are formed.

    As shown in FIGS. 4 and 6, the recesses 35, 35 formed at both ends of the side wall 34 b have corner guide portions 22 c that protrude outward from the LCD main body 21 in the LCD frame 22 of the display unit 20. Is housed.

    As shown in FIGS. 4 and 7, the sealing portion 25 of the LCD main body 21 is accommodated in the recess 36 formed in the central portion of the side wall 34b.

    As shown in FIGS. 4 and 8, the outer peripheral edge portion of the base plate portion 22 a of the LCD frame 22 of the display unit 20 includes a side wall 34 b formed by the resin portion 32 in portions other than the concave portions 35, 35, 36. It approaches or abuts against the butting surface (wall) 39.

By the way, as shown in FIGS. 6-8, the sheet metal member 31 has the bottom plate part 31a which forms the bottom face 34a of the display accommodating part 34, and the side wall part 31b which stands | starts up from the outer peripheral part of the bottom plate part 31a. The sheet metal member 31 is drawn by press working. Therefore, the side wall portion 31b does not stand up perpendicularly to the bottom plate portion 31a, but increases in diameter as it is separated from the bottom plate portion 31a in the rising direction. The dimension in the direction is formed to gradually increase. Thereby, the side wall part 31b is formed inclining with respect to the baseplate part 31a. Therefore, the side wall 31b of the sheet metal member 31 exposed in the recesses 35 and 36 is inclined toward the outer peripheral side.
In addition, a flat surface portion 31c formed substantially in parallel with the bottom plate portion 31a is formed at the distal end portion of the side wall portion 31b.

    The screen 40 is fixed to the outer peripheral side of the display housing portion 34 in the front case 30 by various fixing means such as adhesion and engagement.

According to the configuration as described above, the corner guide portion 22c of the LCD frame 22 is provided only in a portion corresponding to the corner portion 21d of the LCD body 21 in the side 21a where the sealing portion 25 is formed in the LCD body 21. Thus, the display unit 20 has a configuration in which only the corner guide portion 22c of the LCD frame 22 and the sealing portion 25 of the LCD main body 21 protrude toward the outer peripheral side.
On the other hand, in the side wall 34b of the display housing part 34 formed in the front case 30, the resin part 32 is cut out in the part for housing the corner guide part 22c and the sealing part 25, and the concave part 35 in which the sheet metal member 31 is exposed. , 36 are formed.
When the display unit 20 having sufficient strength secured by the LCD frame 22 having the guide wall 22b is accommodated in the display accommodating portion 34 of the front case 30, the corner guide portion 22c protruding from the LCD frame 22 is By accommodating in the recessed part 35 formed in the accommodating part 34, size reduction of an apparatus and expansion of component mounting space can be aimed at. In other words, the guide wall 22b is not provided in a portion other than the corner guide portion 22c, and the concave portions 35 and 36 are formed by cutting out a part of the resin portion 32. This is because the thickness of the front case 30 on the outer peripheral side can be reduced.
In addition, by engaging the corner guide wall 22c and the recess 35, the display unit 20 and the front case 30 can be reliably positioned and fixed.

    Moreover, since the side wall part 31b of the sheet metal member 31 is provided to be inclined, the recesses 35 and 36 can be configured to effectively exhibit the above effects while avoiding interference with the guide wall 22b and the sealing part 25. It has become.

    Further, a contact surface 39 made of the resin portion 32 is formed in a portion other than the concave portions 35, 35, 36, and the outer peripheral edge portion of the base plate portion 22 a of the LCD frame 22 approaches or abuts against the contact surface 39. As a result, not only the function of positioning the display unit 20 but also when the mobile terminal device 10 is dropped during handling, the display unit 20 may move and be damaged in the display accommodating portion 34. Can be prevented.

The mobile terminal device of the present invention is not limited to the above-described embodiments described with reference to the drawings, and various modifications can be considered within the technical scope.
For example, in the above-described embodiment, the corner guide portion 22c is provided at the corner of the LCD frame 22, and the recesses 35 are provided to face the corner guide portion 22c. Similar guide walls 22b may be provided at positions other than the corners of the frame 22.
In addition, the corner guide portion 22c is formed as a part of the guide wall 22b. However, the guide wall 22b is not formed, and the base plate portion 22a protrudes to the outer peripheral side to function as the corner guide portion 22c. Is possible.
Further, for example, the application of the mobile terminal device 10 and the portion other than the structure for fixing the display unit 20 to the front case 30 are not limited to the above-described configuration. For example, the mobile terminal device 10 may be a foldable type. In such a case, the present invention may be applied to a display housing including the display unit 20.
In addition to this, as long as it does not depart from the gist of the present invention, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate.

DESCRIPTION OF SYMBOLS 10 Portable terminal device 11 Case 20 Display unit 21 LCD main body (display main body)
21d Corner portion 22 Frame 22a Base plate portion 22b Guide wall (side wall)
22c Corner guide (projection)
24 Burr 25 Sealing part 28 Engagement protrusion 30 Front case 31 Sheet metal member 31a Bottom plate part 31b Side wall part 31c Flat part 32 Resin part 34 Display accommodation part 34a Bottom surface 34b Side wall 35 Recess (projection part accommodation recessed part)
36 Concave part (sealing part accommodating concave part)
37 Support surface 39 Butting surface (wall)
40 screens

Claims (4)

A display unit having a display screen;
A housing having a display housing portion for housing the display unit,
The display unit is
The display body,
A frame provided along a surface of the display body opposite to the display screen;
On one side of the frame, a protrusion formed to protrude outward from the display body,
The housing is in the display housing portion,
A wall portion facing a portion other than the protruding portion on one side of the frame;
A projection receiving recess recessed toward the outer peripheral side with respect to the wall portion in order to receive the projection, and
A mobile terminal device characterized by being formed.   The portable terminal device according to claim 1, wherein the protruding portion has a side wall provided so as to rise from an outer peripheral portion of the frame and surround an outer peripheral side of a corner portion of the display main body. The display main body has a sealing portion that is formed when the display main body is molded and protrudes to the outer peripheral side,
The mobile terminal device according to claim 1, further comprising a sealing portion receiving recess that is recessed toward an outer peripheral side in order to receive the sealing portion, in the display receiving portion of the casing. . The casing is formed of a plate-shaped sheet metal member and a resin portion in which the sheet metal member is inserted,
The wall portion is formed by the resin portion,
The protrusion housing recess and the sealing housing recess are formed in a state where the sheet metal member is exposed,
4. The sheet metal member according to claim 1, wherein at least the protrusion housing recess and the sealing housing housing recess are inclined from the bottom surface of the display housing toward the outer peripheral side. 5. The portable terminal device as described in any one.

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