JP2002041240A - Input display panel and information equipment provided with the same - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an input display panel which can reduce the size of the entire device while sufficiently securing the size of an information display unit and an information input unit. SOLUTION: When an input display panel 10 is viewed from a front direction, a touch button image (an image of numeric keys, symbols, etc.) can be seen on a hologram sheet 13, and the input display panel 10 is used as an information input unit. be able to. That is, by pressing a portion of the hologram sheet 13 (touch panel 11) corresponding to a desired numeric key, symbol, or the like in the touch button image displayed on the hologram sheet 13 with a fingertip or the like, information corresponding to the pressed portion is obtained. Can be entered. On the other hand, when the input display panel 10 is viewed from an oblique direction, the touch button image is not seen on the hologram sheet 13 (the lower liquid crystal display panel 11 is seen through), and the input display panel 10 is seen. 10 can be used as an information display unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-sized information device suitable for portable use such as a portable telephone, a portable information terminal, and a calculator, and more particularly to an input display panel for inputting information to the information device. The present invention relates to an information device having the same.

[0002]

2. Description of the Related Art In recent years, information devices such as portable telephones, portable information terminals, and calculators have been gradually reduced in size due to innovations in individual element technologies. Methods of reducing the size of this type of information device are roughly classified into a method of reducing the size of an information display unit for displaying information and a method of reducing the size of an information input unit for inputting information. Specifically, for example, as a technique for reducing the size of the information display unit, by folding the pattern wiring area of the liquid crystal display with respect to the display unit and installing it,
There is known a method for saving space in an information display unit (see Japanese Patent Application Laid-Open No. H11-261676). Further, as a method of reducing the size of the information input unit, a method of saving space in the information input unit by using a trackball instead of numeric keys in a mobile phone or the like is known (Japanese Patent Laid-Open No. 11-32113). Reference).

[0003]

As described above, in the conventional method, the entire device is downsized by saving space in the information display section and the information input section.

[0004] However, if the information display section is reduced in size, the visibility of the display contents is inevitably impaired, and if the information input section is reduced in size, an erroneous input or the like is easily caused, and the usability is extremely deteriorated. . That is, there is a limit to reducing the size of the entire device by reducing the size of each of the information display unit and the information input unit.

[0005] The present invention has been made in view of such a point, and an input display which can reduce the size of the entire apparatus while sufficiently securing the size of the information display section and the information input section. An object of the present invention is to provide a panel and an information device provided with the panel.

[0006]

According to the present invention, there is provided an input display panel for inputting information to an information device, comprising: a touch panel;
A transparent light diffraction structure sheet on which a touch button image corresponding to the input information input via the touch panel is recorded, and the touch button image recorded on the light diffraction structure sheet is displayed in accordance with a viewing angle. There is provided an input display panel characterized in that the presence or absence of display is switched.

In the present invention, it is preferable that a liquid crystal display panel which is arranged below the touch panel and the light diffraction structure sheet and displays output information from an information device is further provided. Further, a plurality of sets of touch button images corresponding to input information input via the touch panel are recorded on the light diffraction structure sheet, and the touch button images of each set may be reproduced at different viewing angles. preferable. Further, it is preferable that the input display panel is used by being incorporated in information equipment such as a mobile phone, a portable information terminal, and a calculator.

According to the present invention, a touch button image corresponding to input information input via the touch panel is recorded on a transparent light diffraction structure sheet disposed on the touch panel, and is recorded on the light diffraction structure sheet. The presence or absence of the display of the touch button image is switched according to the viewing angle, so that the information input unit consisting of the touch panel and the light diffraction structure sheet is superimposed on the information output unit such as a liquid crystal display panel or the printed layer. Thus, the size of the entire device can be reduced while the size of the information input unit is sufficiently ensured. When a hologram sheet is used as the light diffraction structure sheet, the touch button image is displayed as a hologram, so that the design of the information device can be improved.

According to the present invention, the size of the information input section and the information output section is provided by providing the information input section comprising the touch panel and the light diffraction structure sheet so as to overlap with the liquid crystal display panel as the information output section. Can be sufficiently reduced, and the size of the entire apparatus can be reduced.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1, 2, and 3 (a)
(b) is a diagram for explaining an embodiment of the input display panel and the information equipment provided with the input display panel according to the present invention. In the present embodiment, a mobile phone will be described as an example of an information device in which an input display panel is incorporated.

As shown in FIG. 1, a portable telephone 1 according to the present embodiment has a portable telephone main body 2 and a portable telephone main body 2.
And an input display panel 10 incorporated in the front of the device. The input display panel 10 is connected to a control circuit (not shown) provided in the mobile phone main body 2.
Under the control of the control circuit, information can be input to the mobile phone main body 2 and output information from the mobile phone main body 2 can be displayed.

Here, the input display panel 10 is a liquid crystal display panel 11 for displaying output information from the portable telephone body 2.
And the touch panel 1 laminated on the liquid crystal display panel 11
2 and transparent hologram sheet (light diffraction structure sheet)
13 is provided. Note that, on the hologram sheet 13, a touch button image (an image of a numeric key, a symbol, or the like as shown in FIG. 1) corresponding to input information input via the touch panel 12 has a predetermined viewing angle (for example, the front direction). It is recorded to be displayed only in.

FIG. 2 is a sectional view showing the details of the layer structure of the input display panel 10 shown in FIG.

As shown in FIGS. 1 and 2, a liquid crystal display panel 11, a touch panel 12, and a hologram sheet 1 are provided.
3 is stacked in this order from the mobile phone main body 2 side.

The hologram sheet 13 can be attached to the touch panel 12 as a label or a transfer foil. Specifically, as shown in FIG. 2, the hologram sheet 13 is
6, the hologram layer 15 and the adhesive layer 14 are laminated, and can be stuck on the touch panel 12 via the adhesive layer 14. Here, as the pressure-sensitive adhesive layer 14, a heat-fusible pressure-sensitive adhesive can be used in addition to a pressure-sensitive adhesive having normal temperature tackiness. In the case where a heat-meltable adhesive is used, the hologram sheet 13 can be stuck on the touch panel 12 by thermal transfer.

In the hologram layer 15, a touch button image (an image of a numeric key, a symbol, or the like) as shown in FIG. 1 is recorded as a hologram. Here, as the hologram recorded on the hologram layer 15, any hologram such as a relief hologram or a Lippmann hologram can be used. When a transmission type hologram is used, the hologram layer 15 may be used if necessary.
A reflective layer can be laminated by vapor deposition or the like.

The input display panel 10 shown in FIGS. 1 and 2 has a liquid crystal display panel 11 and a hologram panel 1.
3, the touch panel 12 is disposed in the uppermost layer, and the touch panel 12, the hologram sheet 13, and the liquid crystal display panel 11 are stacked in this order from the uppermost layer side. Is also good. At this time, the hologram sheet 13 is used as the uppermost touch panel 1.
From the second side, the adhesive layer 14, the hologram layer 15, and the hologram base layer 16 may be stacked in this order, or the adhesive layer 14, the hologram base layer 16, and the hologram layer 15 may be stacked in this order.

In the input display panel 10 shown in FIGS. 1 and 2, the adhesiveness between each layer of the liquid crystal display panel 11, the touch panel 12, and the hologram sheet 13 (adhesive layer 14, hologram layer 15, and hologram base layer 16). In order to increase the visibility, a transparent adhesive layer may be appropriately provided within a range that does not impair the visibility.

Next, the operation of the present embodiment having such a configuration will be described.

The input display panel 10 of the mobile phone 1 can be used in different viewing states depending on the viewing angle. FIGS. 3A and 3B are views showing the visual recognition state when the input display panel 10 is viewed from the front and oblique directions, respectively.

As shown in FIG. 3A, the input display panel 1
0 when viewed from the front, the hologram sheet 13
The touch button images (images of numeric keys, symbols, and the like) can be seen above, and the input display panel 10 can be used as an information input unit. That is, the hologram sheet 13
By pressing a portion of the hologram sheet 13 (that is, the touch panel 11) corresponding to a desired numeric key, symbol, or the like in the touch button image displayed above with a fingertip or the like,
Information corresponding to the pressed portion can be input to a control circuit (not shown) in the mobile phone main body 2.

On the other hand, when the input display panel 10 is viewed from an oblique direction (for example, a direction of 10 degrees left), FIG.
As shown in (b), a state where the touch button images (images of numeric keys, symbols, etc.) are not visible on the hologram sheet 13 (ie, the hologram sheet 13 and the touch panel 12)
(A state in which the liquid crystal display panel 11 located in the lower layer can be seen through), and the input display panel 10 can be used as an information display unit.

As described above, according to the present embodiment, the touch button image corresponding to the input information input through the touch panel 12 is recorded on the transparent hologram sheet 13 arranged on the touch panel 12, and the hologram is recorded. Since the presence or absence of the display of the touch button image recorded on the sheet 13 is switched according to the viewing angle, the information input unit including the touch panel 12 and the hologram sheet 13 can be changed to the information output unit such as the liquid crystal display panel 11 or the printing. The information input unit can be provided so as to overlap with a layer or the like, so that the size of the entire device can be reduced while the size of the information input unit is sufficiently ensured. Further, since the touch button image is displayed as a hologram, the design of the mobile phone 1 can be improved.

Further, according to the present embodiment, since the information input section including the touch panel 12 and the hologram sheet 13 is provided so as to overlap the liquid crystal display panel 11 (information output section), the information input section and the information output section are provided. The size of the entire apparatus can be reduced while sufficiently securing the size of each part.

In the above-described embodiment, the case where the hologram sheet 13 is affixed to the touch panel 12 as a label or a transfer foil has been described as an example. However, the present invention is not limited to this, and as shown in FIG. Alternatively, the hologram sheet 13 may be sandwiched between the protection sheet 18 and the touch panel layer 12. In this case, as shown in FIG. 4, the protective sheet 18 (protective layer 20 and adhesive layer 19), hologram sheet 13 (hologram base layer 16, hologram layer 15 and adhesive layer 14), Material layer 17, touch panel 12, and liquid crystal display panel 11
Are stacked in this order. The base layer 17 can be made of any material such as a plastic material as long as the material has transparency. Further, as the adhesive layer 19, similarly to the adhesive layer 14, a heat-melt type adhesive can be used in addition to an adhesive having an adhesive property at a normal temperature. When a heat-meltable adhesive is used, the protective sheet 18 can be stuck on the hologram sheet 13 by thermal transfer. In addition, the liquid crystal display panel 11, the touch panel 1
2, base layer 17, hologram sheet 13 (adhesive layer 14,
In order to enhance the adhesiveness between each layer of the hologram layer 15 and the hologram base layer 16) and the protective sheet 18 (the adhesive layer 19 and the protective layer 20), a transparent adhesive layer is appropriately provided within a range that does not impair the visibility. Is also good.

Further, in the above-described embodiment, a set of touch button images is recorded on the hologram sheet 13 so that the touch button images are displayed at a predetermined viewing angle. Alternatively, a plurality of sets of touch button images may be recorded on the hologram sheet 13 and the sets of touch button images may be reproduced at different viewing angles. In order to further improve the design of the mobile phone 1, a pattern other than the touch button image may be recorded on the hologram sheet 13 so that the pattern or the like is displayed at a predetermined viewing angle.

Further, in the above-described embodiment,
Although a mobile phone has been described as an example of the information device in which the input display panel 10 is incorporated, the present invention is not limited to this, and can be similarly applied to various information devices such as a mobile information terminal and a calculator. FIG. 5 is a diagram showing an example in which the input display panel 10 is used by being incorporated in the calculator main body 22 of the calculator 21. In this case, for example, when the input display panel 10 is viewed from the front, a touch button image (numerical keys or operation symbols (“x”, “÷”) on the hologram sheet 13 is used.
), Etc., and the input display panel 1
It becomes possible to input a calculation formula or the like via 0. On the other hand, when the input display panel 10 is viewed from an oblique direction (for example, a direction of 10 degrees to the left), the touch button images (images of numeric keys, arithmetic symbols, and the like) are not visible on the hologram sheet 13 ( That is, the hologram sheet 1
3 and the liquid crystal display panel 11 located below the touch panel 12 can be seen through), and the calculation result and the like can be seen through the input display panel 10.

Furthermore, in the above-described embodiment, a hologram sheet on which a hologram is recorded is used as the light diffraction structure sheet. However, the present invention is not limited to this, and any other light diffraction structure such as a diffraction grating may be provided. Alternatively, a light diffraction structure sheet may be used.

[0029]

As described above, according to the present invention, it is possible to reduce the size of the entire apparatus while sufficiently securing the sizes of the information display section and the information input section.

[Brief description of the drawings]

FIG. 1 is a view for explaining an example in which an input display panel according to one embodiment of the present invention is used by being incorporated in an information device (a mobile phone).

FIG. 2 is a sectional view showing details of a layer configuration of the input display panel shown in FIG. 1;

FIG. 3 is a view for explaining the operation of the input display panel shown in FIG. 1;

FIG. 4 is a sectional view showing a layer configuration of a modification of the input display panel shown in FIG. 1;

FIG. 5 is a diagram illustrating an example in which the input display panel according to one embodiment of the present invention is used by being incorporated in an information device (calculator).

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mobile phone (information equipment) 2 mobile phone main body 10 input display panel 11 liquid crystal display panel 12 touch panel 13 hologram sheet (light diffraction structure sheet) 14 adhesive layer 15 hologram layer 16 hologram base layer 17 base layer 18 protective sheet 19 adhesion Layer 20 Protective layer 21 Calculator (information equipment) 22 Calculator body

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09F 9/00 366 F term (Reference) 5B020 AA01 CC12 DD30 FF17 FF53 GG13 5B068 AA05 AA11 AA33 CD02 CD06 5B087 AA09 AB04 AE00 CC02 CC12 CC14 CC15 DE02 DE03 5G435 AA01 BB12 CC02 CC13 HH02 LL07

Claims (4)

[Claims] 1. An input display panel for inputting information to an information device, comprising: a touch panel; and a touch button image arranged corresponding to the touch panel and corresponding to input information input via the touch panel. An input display panel comprising: a recorded transparent light diffraction structure sheet; and a display / non-display state of the touch button image recorded on the light diffraction structure sheet is switched according to a viewing angle. 2. The input display panel according to claim 1, further comprising a liquid crystal display panel disposed below the touch panel and the light diffraction structure sheet to display output information from an information device. 3. A plurality of sets of touch button images corresponding to input information input through the touch panel are recorded on the light diffraction structure sheet, and the sets of touch button images are reproduced at different viewing angles. 3. The input display panel according to claim 1, wherein: 4. An information device comprising the input display panel according to claim 1.