JP2004186171A - Display unit mounting structure and portable terminal device using the same - Google Patents

Abstract

An object of the present invention is to reduce the thickness of a housing forming a portable terminal device.
The display unit includes a front case and a rear case. The display unit has a front case. The front case has an opening. 6 and at least a pair of ribs 11 arranged opposite to each other across the display unit 6 in the display unit side body 2, and a claw 6 a provided on the rib 11 has a concave portion on the side surface of the display unit 6. Alternatively, the display unit 6 is attached to the inside of the display unit side housing 2 by engaging with the claw 6 a, and the display light transmitting window 9 is fixed to the opening 5, and the display light transmitting window 9 and the display unit 6 The buffer material 7 is interposed between the display surface and the periphery.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mounting structure of a display unit and a mobile terminal device such as a mobile phone or a PDA (Personal Digital Assistants) using the same.
[0002]
[Prior art]
As a conventional mobile terminal device, as shown in an example of a general mobile phone in FIG. 7, this mobile phone has an operation unit side housing 1 having a plurality of operation keys 16 and a display unit having a display unit 15. The first and second housings 1 and 2 can be folded through a hinge 3.
[0003]
Further, as a structure for attaching the display unit 6 to the display unit side body 2, a structure as disclosed in Patent Document 1 is used.
[0004]
FIG. 5 is a partial enlarged cross-sectional view of a conventional mounting structure in which the display unit is mounted in the housing, and FIG. 6 is a partial enlarged cross-sectional view of the display translucent window and the display unit of FIG. The housing 2 is integrally formed by assembling a front case 2a and a rear case 2b, and both cases 2a and 2b are usually formed of resin or metal. An opening 5 is formed in the front side case 2a, and a step 4 is provided around the opening 5.
[0005]
A display unit 15 such as a liquid crystal display device is accommodated in the display unit-side housing 2 so that the display unit faces the opening 5, and the display unit 15 is held on the bottom surface of the rear case 2b. At the same time, the peripheral edge of the display unit 15 facing the opening 5 of the front case 2a is provided with a light-transmitting window sticking member 8 forming the bottom of the step portion 4 via a cushioning material 17 made of sponge, rubber or the like. It is displayed on the back.
[0006]
A translucent window 9 for display is fitted in the step portion 4 so as to cover the display unit 15 in order to protect a glass panel of the display unit 15 housed in the display unit side housing 2. The light window 9 and the light transmitting window attaching member 8 are adhered via a double-sided adhesive tape 10. The information display screen displayed on the display unit 15 can be visually viewed from the outside 12 through the translucent display window 9.
[0007]
By fixing the display light-transmitting window 9 to the light-transmitting window sticking member 8 with the double-sided adhesive tape 10 in this manner, the display unit is disposed between the display light-transmitting window 9 and the light-transmitting window sticking member 8. The dust is prevented from entering the side housing 2. Also, by increasing the width W1 of the light-transmitting window sticking member 8, the width of the double-sided adhesive tape 10 can be increased, and the light-transmitting window 9 for display can be firmly fixed to the light-transmitting window sticking member 8. It has become.
[0008]
In FIG. 5, H1 is a distance between the glass panel of the display unit 15 and the translucent window 9 for display, and is a portion that becomes a gap when assembled. H2 is the height from the outer surface of the front case 2a to the bottom of the step portion 4.
[0009]
[Patent Document 1]
JP 2000-307258 A
[Problems to be solved by the invention]
By the way, in recent years, the mobile terminal device has been required to be thinner as a part of downsizing. However, in the conventional portable terminal device, since the distance H1 between the glass panel of the display unit 15 and the translucent window 9 for display is large, the dimension of the display unit side body 2 in the thickness direction is increased, and the thickness is reduced. It was difficult to do. In particular, since the height H2 from the outer surface of the front case 2a to the bottom surface of the step portion 4 in the display housing 2 is determined by the thickness of the light transmitting window 9, the display housing 2 is There is no means other than thinning the double-sided adhesive tape 10 and the cushioning material 17 to reduce the thickness.
[0011]
However, as a harmful effect when the double-sided adhesive tape 10 is made thin, when the portable terminal device is dropped, the light transmitting window 9 for display may fall off due to an impact. Further, when the cushioning member 17 formed of sponge, rubber, or the like is made thin, the cushioning function of the cushioning member 17 is reduced, and the display unit 6 may be damaged.
[0012]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a display unit mounting structure suitable for thinning a housing and a portable terminal device using the same.
[0013]
[Means for Solving the Problems]
In view of the above problem, the display unit mounting structure according to the first aspect of the present invention provides an opening larger than the outer shape of the display unit in the front case of the housing including the front case and the rear case. A display unit is provided in a housing opposed to the opening, and at least a pair of locking portions are provided in the housing so as to face each other with the display unit interposed therebetween. The display unit is attached to the inside of the housing by engaging with a concave portion or a claw provided on a side surface of the display unit, and a light transmitting window for display is fixed to the opening, and the light transmitting window for display and the display surface of the display unit are fixed. It is characterized in that a buffer material is interposed between the peripheral edge.
[0014]
According to a second aspect of the present invention, in the structure of the display unit according to the first aspect, the opening is larger than an outer shape of the display unit.
[0015]
According to a third aspect of the present invention, in the mounting structure of the display unit according to the first or second aspect, a step portion is provided around an opening of the front case, and the display light-transmitting window is provided in the step portion. It is characterized in that it is fixed through an adhesive means.
[0016]
According to a fourth aspect of the present invention, a portable terminal is formed by attaching a display unit to a housing using the display unit attachment structure according to any one of the first to third aspects.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described.
FIG. 1 is a perspective view showing an example in which the present invention is applied to a mobile phone as a mobile terminal device.
The mobile phone includes an operation unit side housing 1 having a plurality of operation keys 16 and a display unit side housing 2 having a display unit 6. Both housings 1 and 2 can be folded via a hinge unit 3. I can do it.
[0018]
As shown in FIG. 2, the display unit-side housing 2 includes a front case 2a and a rear case 2b, and the front case 2a has an opening 5 larger than the outer shape of the display unit 6. The display unit 6 such as a liquid crystal display device is accommodated in the display unit side body 2 facing the opening 5.
[0019]
FIG. 3 is a partially enlarged cross-sectional view showing a mounting state of the display unit 6. A translucent window sticking member 8 having a step portion 4 around an opening 5 of the front case 2 a and forming a bottom surface of the step portion 4. The display light-transmitting window 9 is fixed to the light-transmitting window 9 via a double-sided adhesive tape 10.
[0020]
At both ends of the translucent window sticking member 8 on both sides of the opening 5, ribs 11 are respectively provided as locking portions extending toward the rear side case 2 b, and are arranged at positions facing each other. is there. Each of the ribs 11 is provided with a slit 11a, and each of the side surfaces of the display section 6 has a claw 6a. The unit 6 is attached to the inside of the display unit side housing 2.
[0021]
Therefore, according to the mounting structure of the display unit in the illustrated example, the display unit 15 is attached to the light transmitting window attaching member 8 of the front case 2a and the rear case as in the conventional mounting structure shown in FIGS. It is not necessary to sandwich the display portion 15 with the light-transmitting window attaching member 8, and the buffer member 17 interposed between the display portion 15 and the translucent window attaching member 8 can be omitted. Moreover, since the opening 5 of the front case 2a is larger than the outer shape of the display unit 6, the position of the display surface 6b of the display unit 6 can be moved higher than the lower surface of the translucent window attaching member 8. Can be. As a result, the distance H1 between the glass panel (display surface 6b) of the display unit 6 and the translucent window 9 for display can be made smaller than that shown in FIG. Can be made much thinner than the case shown in FIG.
[0022]
Further, since it is not necessary to make the double-sided adhesive tape 10 thin on the light-transmitting window sticking member 8 in order to make the display-unit-side housing 2 thin, even if the mobile phone is dropped, a shock is applied to the display. The light window 9 does not fall off.
[0023]
Reference numeral 7 denotes a cushioning material made of sponge, rubber, or the like disposed between the translucent window 9 for display and the periphery of the display surface of the display unit 6. The translucent window 9 for display and the display unit 6 are formed by the cushioning material 7. Can be kept substantially constant, and even if a larger stress acts on the translucent display window 9 than the outside, the stress is absorbed by the buffer material 7 to reduce the stress acting on the display unit 6. be able to. Further, since it is not necessary to make the cushioning member 7 thin, the buffering function of the cushioning member 7 does not decrease, and there is no possibility that the glass panel of the display unit 6 is damaged.
[0024]
FIG. 4 is a partially enlarged cross-sectional view showing a translucent window for display and a display unit according to another embodiment of the present invention. In the figure, the parts denoted by the same reference numerals as those in FIG. 3 represent the same parts. . Thus, the basic configuration of the illustrated example is substantially the same as that shown in FIG.
[0025]
In the illustrated example, a light-transmitting window is provided inside the peripheral edge of the opening 5 so that the cross-sectional shape is chamfered and the upper surface is flush with the upper surface of the light-transmitting window attaching member 8. The attaching member 13 is provided so as to protrude toward the side edge of the display unit 6.
[0026]
In the illustrated example, the same operation and effect as the embodiment of FIG. 3 can be obtained. However, in the embodiment of FIG. 4, since the width and length of the opening 5 are increased while the width and length of the step portion 4 remain the same as in the conventional case, the width of the translucent window sticking member 8 is increased. That is, the area is reduced, and thus the width of the double-sided adhesive tape 10 is reduced, and there is a limit even if the light transmitting window 9 for display is fixed more firmly to the light transmitting window attaching member 8.
[0027]
However, in the illustrated example, the double-sided adhesive tape 10 for holding the display light-transmitting window 9 in the step portion 4 can be bonded to the upper surfaces of the light-transmitting window attaching members 8 and 13, so that the double-sided adhesive tape 10 can be used. The area where the tape 10 is adhered can be enlarged, and the fixing of the translucent window 9 for display to the translucent window attaching members 8 and 13 can be further strengthened.
[0028]
Also, by making the display section 6 larger than the inner end face of the light transmitting window attaching member 13 and making the corners of the end face of the display section 6 overlap with the light transmitting window attaching member 13, the display section 6 is formed. Even when pressed from the rear case 2b side, the end face of the display unit 6 can be prevented from jumping out to the front by abutting on the translucent window sticking member 13, so that the translucent window 9 for display is formed on both sides. Peeling from the adhesive tape 10 can be prevented.
[0029]
In addition, the mounting structure of the display unit of the present invention and the portable terminal device using the same are not limited to the above-described illustrated examples, and various modifications can be made without departing from the gist of the present invention. Of course.
[0030]
【The invention's effect】
As described above, according to the mounting structure of the display unit and the portable terminal device using the same according to the first to fourth aspects of the present invention, the housing can be made thinner than before. This can provide an excellent effect.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a mobile phone as an example of a mobile terminal device of the present invention.
FIG. 2 is an exploded perspective view showing only a display-side housing of the mobile phone of FIG. 1;
FIG. 3 is a partially enlarged cross-sectional view showing a mounting state of a display unit in a cross section taken along line XX in the mobile phone of FIG. 1;
FIG. 4 is a partially enlarged cross-sectional view illustrating a mounting structure of a display unit according to another embodiment of the present invention.
FIG. 5 is a partially enlarged cross-sectional view showing a conventional display unit mounting structure.
FIG. 6 is a partially enlarged sectional view showing the vicinity of a display unit in FIG. 5;
FIG. 7 is a perspective view showing an example of a general mobile phone.
[Explanation of symbols]
1 operation unit side housing 2 display unit side housing (housing)
2a Front case 2b Rear case 3 Hinge 4 Step 5 Opening 6 Display 6a Claw 7 Buffer material 8 Translucent window sticking member 9 Translucent window for display 10 Double-sided adhesive tape (adhesion means)
11 rib (locking part)
11a Slit 12 Exterior 13 Translucent window sticking member H1 Distance

Claims (4)

An opening is provided in the front side case of the housing composed of the front side case and the rear side case, and a display unit is provided in the housing facing the opening, and the display unit is sandwiched in the housing. And at least a pair of locking portions disposed opposite to each other, and the claw provided on the locking portion engages the concave portion with the concave portion or the claw provided on the side surface of the display portion, and attaches the display portion to the inside of the housing. And a light transmitting window for display is fixed to the opening, and a cushioning material is interposed between the light transmitting window for display and a peripheral edge of a display surface of the display unit. Construction. The display unit mounting structure according to claim 1, wherein the opening is larger than an outer shape of the display unit. 3. The display device according to claim 1, wherein the front side case has a stepped portion at a periphery of the opening, and the display light-transmitting window is fixed to the stepped portion via an adhesive unit. 4. Mounting structure of the display unit described. A mobile terminal device comprising a display unit mounted in a housing of the mobile terminal device using the display unit mounting structure according to claim 1.

Images