JP2008219308A - Portable terminal pasting sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pasting sheet 1 which is beautifully pasted on a front face of an upper cabinet 51 where a liquid crystal display device 53 of a portable telephone set 50 is prepared, also has functions added for other than peep prevention, and improves a degree of user satisfaction. <P>SOLUTION: The pasting sheet 1 is pasted on the front face of the upper cabinet 51 where the liquid crystal display device 53 of the portable telephone set 50 is mounted. It is also provided with: a peep-preventing unit 3 laminated on the liquid crystal display device 53; and an electromagnetic wave preventing unit 4 enclosing surroundings of the peep preventing unit 3. The peep preventing unit 3 is smaller than an external size L1 of the liquid crystal display device 53, and is equal to or larger than a display area L4 of the liquid crystal display device 53. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile terminal sticking sheet that is used by being attached to a housing of a mobile terminal such as a mobile phone.

  2. Description of the Related Art Conventionally, as a kind of portable terminal affixing sheet, a peep prevention film that is attached to a display screen of a mobile phone and prevents peeping has been proposed (see Patent Documents 1, 2, and 3).

  Such a peep prevention film has a property of allowing light in a direction perpendicular to the film to pass and not allowing light in an oblique direction to pass. Therefore, when a peep prevention film is pasted on the display screen, users who view the display screen straight from the front can see the display contents, and others who look into the display from the side or top cannot see the display contents. . By using this peeping prevention film, the user protects privacy by preventing others from peeping at e-mail texts displayed on the display screen.

  Here, of the front surface of the casing of the mobile phone, a portion where the display screen is provided is a part. In recent years, mobile phones have a sophisticated design, and the entire front surface is covered with a transparent resin plate so as not to cause a step between the display screen portion and the surrounding portion. Things have also been offered.

For this reason, when a peep prevention film is affixed to the display screen portion, there is a problem in that a step is formed on the front resin plate configured so as not to have a step and the appearance is deteriorated.
Moreover, since the peep prevention film does not have a function other than the ability to prevent peeping, when another function such as prevention of electromagnetic waves is required, it needs to be performed by a separate method.
Japanese Patent Laid-Open No. 2004-264796 JP 2006-168335 A JP 2006-192872 A

  In view of the above-mentioned problems, the present invention provides a portable terminal affixing sheet that can be beautifully affixed to the front surface of a portable terminal on which a display screen is provided and has functions other than peeping prevention. The purpose is to improve the satisfaction of.

  The present invention relates to a portable terminal affixing sheet that is used by being affixed to a casing on a side where a display screen part of a portable terminal is provided, and a peep prevention part superimposed on the display screen part, and the peep It is a portable terminal sticking sheet provided with the electromagnetic wave prevention part which surrounds the circumference | surroundings of the anti-viewing sheet.

  As a preferred mode, the peep prevention unit is configured to be smaller than the entire area of the display device provided in the display screen unit and equal to or larger than the effective display area of the display device.

  According to the present invention, a portable terminal affixing sheet that can be beautifully affixed to the front surface of a portable terminal provided with a display screen and that has functions other than peep prevention is provided to improve user satisfaction. be able to.

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing the external appearance of the mobile phone 50 and the adhesive sheets 1 and 7.
In the mobile phone 50, an upper housing 51 and a lower housing 61 are connected by a hinge 59 so as to be foldable.
The upper housing 51 is made of an opaque resin. The upper housing 51 is provided with a light projecting portion 51 a for the liquid crystal display device 53 and a frame-like opaque portion 51 b surrounding the light projecting portion 51 on the front surface that is the inner side of the folding. The light projecting portion 51 a is a window hole formed in the upper housing 51. A transparent acrylic plate 58 is provided on the surfaces of the light projecting portion 51a and the opaque portion 51b so as to cover the entire surface. The acrylic plate 58 and the opaque portion 51b are provided with a speaker hole 52 at a position above the light projecting portion 51a.

A liquid crystal display device 53 is superimposed on the inside of the light projecting unit 51a. In the liquid crystal display device 53, the display area L4 of the pixel display section 34a is smaller than the light projection area L2 of the light projecting section 51a, and the external size L1 of the front glass substrate 31 is larger than the light projection area L2 of the light projecting section 51a. Configured to size.
The lower housing 61 is provided with a plurality of input keys 62 and a single microphone hole 64 on a front surface 61a which is a folding inner surface side.

  In the mobile phone 50 thus configured in appearance, not only the liquid crystal display device 53 but also a control unit for performing various controls, a storage unit for storing information, an input unit for detecting input of the input key 62, A speaker that outputs sound, a microphone that collects sound, a wireless communication unit that performs wireless communication and wireless data communication, and the like are provided.

  The patch sheet 1 is formed of a sheet having the same size as the front surface of the mobile phone 50. A speaker hole 2 is provided at a position corresponding to the speaker hole 52 of the mobile phone 50. Further, the peep prevention unit 3 is provided at a position corresponding to the light projecting unit 51 a of the mobile phone 50, and the electromagnetic wave prevention unit 4 is provided at other portions.

  The patch sheet 7 is formed of a sheet having the same size as the front surface 61 a of the mobile phone 50. The adhesive sheet 7 is configured by superimposing a base material sheet formed of a transparent material such as polyvinyl chloride or PET and an electromagnetic wave prevention film made of the same material as the electromagnetic wave prevention film 12 described above. Thereby, the electromagnetic wave prevention part 7a is provided in the sticking sheet 7 in the whole surface. The sticker sheet 7 is printed with a print display 8 indicating the function of the input key 62 at a position corresponding to the input key 62 of the mobile phone 50. Further, the adhesive sheet 7 is provided with a microphone hole 9 at a position corresponding to the microphone hole 64 of the mobile phone 50. The base sheet of the adhesive sheet 7 is made of a flexible material so that the input key 62 can be pressed when the print display 8 portion is pressed.

FIG. 2 is a longitudinal sectional view showing the configuration of the liquid crystal display device 53 and the adhesive sheet 1 provided in the mobile phone 50.
The patch sheet 1 is bonded and integrated with the base sheet 11 in such a state that the electromagnetic wave prevention film 12, the peep prevention film 13 and the adhesive layer 14 overlap in this order. This adhesion may be fixed so as not to be peeled off by an appropriate method, for example, performed by an adhesive, fused, or formed into a film by painting. Further, the electromagnetic wave prevention film 12 and the peep prevention film 13 are not limited to film materials, but may be formed of an electromagnetic wave prevention layer that exhibits an electromagnetic wave prevention function or a peep prevention layer that exhibits a peep prevention function, respectively. Good.

The base sheet 11 is formed in a sheet shape from a transparent material such as polyvinyl chloride or PET.
The electromagnetic wave prevention film 12 is formed of a communication wave blocking member that blocks electromagnetic waves. Specifically, a metal such as aluminum, copper, or silver, or a member containing an absorbent such as carbon or silicon is formed of a resin. The electromagnetic wave prevention film 12 has a function of blocking or suppressing the passage of electromagnetic waves.

  The electromagnetic wave prevention film 12 has an outer shape of the same size as that of the base sheet 11, and a window hole 12a is formed inside. The hole size L3 of the window hole 12a is smaller than the light projection region L2 of the light projection unit 51a and larger than the display region L4 of the pixel display unit 34a of the liquid crystal display device 53. The hole size L3 of the window hole 12a may be formed to the same size as the display area L4 of the pixel display portion 34a of the liquid crystal display device 53.

The peep prevention film 13 is transparent when viewed at right angles to the surface of the film and can see the other side, and when viewed obliquely with respect to the surface of the film, it is shielded (or colored) and the other side. Is made of a film that cannot be seen (or is difficult to see). Specifically, an appropriate film such as a film provided with fine irregularities, a translucent resin film having a multilayer structure and a color developing function due to interference of internally reflected light, or a polarizing filter that blocks light from an oblique direction. Can be configured.
This peep prevention film 13 is formed in the same size as the base material sheet 11.

  The adhesive layer 14 is formed by applying an adhesive material to the surface of the peep prevention film 13 (the surface opposite to the base sheet 11). In addition, it is good to stick release paper on the adhesion layer 14. Thereby, the user can peel and use the sticking sheet 1 from a release paper.

  The liquid crystal display device 53 includes a front glass substrate 31, a color filter 32, a liquid crystal layer 33, a TFT array 34, and a rear glass substrate 35 which are laminated in this order. Since the liquid crystal display device 53 is a well-known device, the polarizing filter, the alignment film provided in the liquid crystal display device 53, the backlight provided on the back surface of the liquid crystal display device 53, and the like will be omitted.

  In this liquid crystal display device 53, a pixel display portion 34a for displaying pixels on the TFT array 34 is made slightly smaller than the size of the front glass substrate 31 provided on the forefront. Therefore, the pixel display portion 34a is smaller than the entire size of the liquid crystal display device 53 (the size of the front glass substrate 31).

By sticking the sticking sheet 1 having the above configuration to the mobile phone 50, both the electromagnetic wave prevention function and the peep prevention function can be obtained.
First, the electromagnetic wave prevention function will be described. The electromagnetic wave transmitted from the wireless communication antenna of the mobile phone 50 is blocked by the liquid crystal display device 53 provided on the front side of the upper casing 51 and the electromagnetic wave prevention film 12 of the adhesive sheet 1. Is done. That is, the electromagnetic wave preventing film 12 is provided with a window hole 12a, and a liquid crystal display device 53 that is slightly larger than the window hole 12a is disposed in the window hole 12a portion. Accordingly, it is possible to prevent electromagnetic waves from leaking through the gap between the window hole 12a and the liquid crystal display device 53.

  As a result, a user who makes a phone call by placing the speaker hole 52 of the mobile phone 50 on his / her ear is reliably protected by the liquid crystal display device 53 and the electromagnetic wave prevention film 12 from electromagnetic waves emitted from the wireless communication antenna inside the mobile phone 50.

  The peeping prevention function will be described. The sticking sheet 1 is provided with a peeping prevention film 13 that is slightly larger than the pixel display unit 34 a of the liquid crystal display device 53. Here, the user viewing from the front can see the contents displayed on the pixel display unit 34a as shown in FIG. However, as shown in FIG. 3 (B), since the peeping prevention film 13 covers the entire pixel display portion 34a, the entire pixel display portion 34a is not visible to other people who want to peep diagonally. Can be.

  In this way, the adhesive sheet 1 is formed in the same size as the front surface of the upper housing 51, and the entire uppermost surface is covered with the base material sheet 11. Even if attached, it can provide a beautiful aesthetic without unevenness. In particular, since the base sheet 11 covering the whole is thicker than the electromagnetic wave prevention film 12 and the peeping prevention film 13, the step or the like due to the window hole 12 a of the electromagnetic wave prevention film 12 should be made hardly felt by the user. Can do.

  Moreover, since the base sheet 11, the electromagnetic wave prevention film 12, and the peep prevention film 13 have the same outer size, it is possible to prevent an unnecessary step from being generated on the adhesive sheet 1, and to achieve a beautiful appearance.

  Moreover, since the electromagnetic wave prevention film 12 is arrange | positioned at the base material sheet 11 side used as the surface and the peep prevention film 13 is arrange | positioned at the back side, as shown in FIG.3 (B), only the peep prevention part 3 is shown. Can be hidden from view. Therefore, when there is a print display drawn on the front side of the electromagnetic wave prevention film 12 with respect to the electromagnetic wave prevention unit 4, the user can visually recognize the print display from an oblique direction.

  In addition, as shown in sectional drawing of Example 2 of FIG. 4, you may comprise the sticking sheet 1 by making the order which the electromagnetic wave prevention film 12 and the peep prevention film 13 overlap overlap. In this case, as shown in FIG. 5 (A), the user who sees from the front can visually recognize the contents displayed on the pixel display portion 34a, and as shown in FIG. Can prevent the entire front surface of the upper casing 51 from being visible, including the display content of the pixel display section 34a. In particular, when the peep prevention film 13 is formed of a film that functions as a mirror when the liquid crystal display device 53 is turned off, the entire front surface of the upper casing 51 wider than the pixel display section 34a can be used as a mirror. The entire front surface of the body 51 can be used effectively.

In correspondence between the configuration of the present invention and the above-described embodiment,
The portable terminal patch sheet of the present invention corresponds to the patch sheet 1 of the embodiment,
Similarly,
The mobile terminal corresponds to the mobile phone 50,
The case corresponds to the upper case 51,
The display screen unit corresponds to the liquid crystal display device 53,
The entire area corresponds to the outer size L1,
The effective display area corresponds to the display area L4,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

The perspective view which shows the external appearance of a mobile telephone and an adhesive sheet. The longitudinal cross-sectional view which shows the structure of a liquid crystal display device and a sticking sheet. Explanatory drawing of the peep prevention effect. The longitudinal cross-sectional view which shows the structure of the sticking sheet of Example 2. FIG. Explanatory drawing of the peep prevention effect of Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Sticking sheet, 3 ... Peep prevention part, 4 ... Electromagnetic wave prevention part, 11 ... Base material sheet, 12 ... Electromagnetic wave prevention film, 12a ... Window hole, 13 ... Peep prevention film, 50 ... Mobile telephone, 51 ... Upper part Housing, 53 ... Liquid crystal display device, L1 ... External size, L4 ... Display area

Claims (4)

A portable terminal affixing sheet that is used by being affixed to the casing on the side where the display screen part of the portable terminal is provided,
A peep prevention unit superimposed on the display screen unit;
The portable terminal sticking sheet provided with the electromagnetic wave prevention part which surrounds the circumference | surroundings of this peeping prevention sheet | seat. The portable terminal according to claim 1, wherein the peeping prevention unit is configured to be smaller than an entire area of the display device provided in the display screen unit and equal to or larger than an effective display region of the display device. Affixed sheet. The peep prevention part is composed of a peep prevention film,
The electromagnetic wave prevention part is composed of an electromagnetic wave prevention film,
A base sheet having a size comparable to the surface of the housing;
The portable terminal sticking sheet according to claim 1 or 2, wherein the peeping prevention film and the electromagnetic wave prevention film are superposed on the base sheet and integrally formed. Forming the peep prevention film in the same size as the base sheet,
The portable terminal sticking sheet according to claim 3, wherein the peep prevention part is configured by a window hole provided in the electromagnetic wave prevention film.

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