JP2002312097A - Inputted information display medium and device having inputted information display portion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inputted information display medium with good visibility wherein displayed letters are enlarged by superimposing a normal print layer and a transparent hologram layer on an inputted information displayed portion that is a key inputting portion of a cell phone and the like, and to provide a device comprising the inputted information display medium of good visibility. SOLUTION: When looking from a generally front side of the inputted information display medium 11, inputted information display disposed in a low layer is directly visible. When looking from an oblique direction to the front side, outside light around inputted information display medium 11 is diffracted and the inputted information recorded in the hologram layer 112 is visible, and the inputted information display disposed in a low layer substantially becomes invisible. When looking from a generally front side of the device 1 having the inputted information display portion, the inputted information display 111 disposed in the low layer is directly visible. When looking from an oblique direction to the front side, outside light around inputted information display medium 11 is diffracted and the inputted information recorded in the hologram layer 112 is visible, and the inputted information display disposed in a low layer substantially becomes invisible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input information display medium, an apparatus having an input information display section, and the like. In particular, the present invention relates to a device having an input information display unit, such as a mobile phone or an electronic desk calculator (calculator), for which miniaturization is required. According to the present invention, a transparent hologram is integrated with a conventional input information display unit (specifically, a button key, a button, etc.) to reduce the size of the apparatus and the like, and to have an easy-to-read input information display unit with a larger display than before. And to improve the design effect. Therefore, the technical field to which the present invention belongs is a mobile phone,
The present invention relates to fields such as manufacturing technology of portable information terminals and calculators and display decoration technology.

[0002]

2. Description of the Related Art Mobile phones, calculators, and the like have been gradually reduced in size due to innovations in individual element technologies. In order to reduce the size, it is roughly divided into "reduce the portion related to display."
And "reducing the portion related to the input." As an example of the former, JP-A-11-261676
Japanese Patent Application Laid-Open Publication No. 2002-125, pp. 1 to 3 discloses a liquid crystal display and a small electronic device provided with the liquid crystal display. In this patent application, a method is described in which a wiring pattern of a liquid crystal display is bent and set with respect to a liquid crystal display portion to reduce a portion related to display. As an example of the latter, Japanese Patent Application Laid-Open No. H11-32113, "Cellular Phone" can be cited, and in this patent application, a jog dial is used as an input method of a cellular phone instead of a numerical value input button, so that an input section is provided. Space saving is achieved.

On the other hand, as a method of displaying input information, a "touch panel" system is a known system, and recently, improvements have been made in equipment / software such as number input by voice recognition and keyboard substitution. However, the touch panel method requires an information display area such as a liquid crystal, and the liquid crystal cost inevitably causes an increase in equipment cost. It requires information input means.

On the other hand, in recent years, mobile phones, calculators, and the like have used various types of numbers, such as numbers, letters, symbols, and input of Japanese display.
In order to enable input of characters and the like, a function of inputting different numbers and characters by pressing a function key even with one key is provided. FIG. 9 is a diagram showing an input information display portion of a general mobile phone. FIG. 9A is a diagram showing types of numbers, characters, and symbols that can be input with each key 11,
FIG. 9B shows an input information display section using the base material + printing ink layer 111, and FIG. 9C shows a protective layer 113. For example, even if the key is the numeral “1” in FIG. 9, “!” Can be input by pressing the function key. Therefore, even with a single key, all input information (usually two or three types) that can be input with the key is displayed, and each character display is naturally reduced, making it difficult to see. Is the actual situation.

[0005]

However, the visibility of the display is inevitably impaired by "reducing the portion relating to the display." In addition, a malfunction such as "reducing the portion relating to the input." However, there is a limit to downsizing the entire device by downsizing individual elements, but the user wants the terminal to be easier to see (especially the elderly It is a more compact terminal, and realizing both of these at the same time is required for device manufacturing.

Therefore, the present invention provides a transparent hologram that is attached to an input information display section of a portable telephone or a calculator, thereby enabling switching between hologram information and a conventional print display depending on the viewing angle. Further, by using an image switching type hologram, it is possible to prevent the display from becoming finer and secure an easily viewable display, thereby solving the above-mentioned problem.

[0007]

The first aspect of the present invention for solving the above-mentioned problems is as follows. When viewed from substantially the front, an input information display located in a lower layer is seen directly, and is oblique to the substantially front. When viewed from the direction, the input information display recorded on the hologram layer is diffracted when the surrounding external light is diffracted, and the input information display located in the lower layer is substantially invisible. is there. Since the input information display medium is used, the display space can be effectively used to make the display easily viewable.

A second aspect of the present invention for solving the above-mentioned problem is that, when viewed from substantially the front, the input information display located in the lower layer can be seen directly, and when viewed from the oblique direction with respect to the substantially front, the surroundings can be seen. Wherein the external light is diffracted so that the input information display recorded in the hologram layer is visible, and the input information display located in the lower layer is substantially invisible. Since the device has such an input information display unit, it is possible to make effective use of the display space and make the display easy to recognize.

[0009]

FIG. 1 is a view showing an input information display section of a portable telephone having an input information display medium according to the present invention. FIG. 1 (A) shows numbers and characters which can be input by each key. And (B) show the substrate + printing ink layer 11
1 shows an input information display unit. FIG. 1 (C) shows an input information display section by a transparent hologram layer 112 thereon.
(D) shows the uppermost protective layer 113. FIG.
1A, the mobile phone 1 has twelve input information display sections (button keys) 11, and each key 11 displays information that can be input (characters, numbers, symbols, etc.). The mobile phone 1 has other necessary functions such as a liquid crystal display unit 12, an antenna 13, a microphone, and a speaker. On the liquid crystal display unit 12, transmission / reception signals and the like are digitally displayed.

[0010] The input information display section itself of FIG. 1B composed of the base material and the printing ink layer has a wide viewable angle range by itself, and can be viewed from almost all the angle range. The transparent hologram layer 112 is located above the base material and the printing ink layer 111, and is at a specific angle, for example, rightward from a plane orthogonal to the line of sight of the mobile phone 1 (hereinafter, also referred to as “substantially front”). Observation at an angle of 10 degrees (observation of the input information display section from 10 degrees to the left) allows clear visual recognition. When the transparent hologram layer 112 is provided, and when viewed from substantially the front, the normal printing layer (substrate + printing ink layer) under the transparent hologram layer can be directly viewed in a translucent state. It is thus possible to manufacture such that the printing layer is normally completely hidden at a given angle. In this case, for example, when the mobile phone 1 is tilted to the right by about 10 degrees, a large katakana "A" can be displayed on the input button, and from the angle of the plane orthogonal to the line of sight, The numeral "1" can be displayed.

FIG. 2 shows a state in which the input information display section is observed from substantially the front of the portable telephone, and FIG. 3 shows a state in which the input information display section is observed from an angle of 10 degrees to the left. In each figure, a large arrow indicates the direction of the line of sight of the person using the mobile phone. As shown in FIG. 2, the number can be displayed larger than when a plurality of information is displayed on one key, and the visibility is improved. FIG. 3 shows a state in which the information displayed on the transparent hologram layer can be visually recognized. However, in actuality, the number indicated by the dotted line (substrate + printing ink layer) is almost invisible. Etc. and numbers are not displayed at the same time. As described above, the key space can be used effectively, and the display information in the same space can be made large characters to improve the visibility of the user.

In the transparent hologram layer shown in FIG. 1C, katakana characters (A to N) and a plurality of codes of English characters and symbols (Pictures, A to Z, symbols) are displayed as one hologram screen. However, it can also be expressed by switching between different holograms. By performing the switching, a space necessary for displaying information is secured, and it is possible to further save space and improve visibility, that is, to enlarge characters. For this purpose, a plurality of holograms can be used in an overlapping manner, or a switchable hologram can be used.

FIG. 4 shows an input information display unit when a switchable transparent hologram is used. FIG. 4 (A)
Indicates an input information display portion by the base material + printing ink layer 111, and a numeral is displayed. FIG. 4 (B) shows an input information display portion provided by a transparent hologram layer 112A thereon, in which katakana characters (A to N) and English characters and symbols (Pictures, A to Z, symbols) are displayed. . The information displayed on one hologram of the switching type display is shown. FIG. 4 (C)
Is a case where the transparent hologram layer is switched and displayed, and (Ah,,!,
＠) Hiragana and symbols are displayed. The switching type display uses different holograms as described above or uses a switching type hologram,
When tilted 5 degrees to the right, katakana can be displayed, and when tilted 5 degrees to the left, English characters can be displayed.

In an information device such as a mobile phone, visibility is improved by using a backlight so that key input is easy even at night. Even when this backlight is used, it is possible to display information using a hologram, though visibility is lower than that of daylight. In an information communication terminal using a backlight, an input information display section (such as a button key) is configured by a transparent (skeleton) key.

By using a hologram with high visibility for the input information display key, it is possible to provide an information device which is superior in design to the related art. Conventionally,
By using a transparent member for the jog dial portion as in 225196 No. `` Communication terminal equipment '', there was a case where the hologram could be visually recognized to improve the operability and obtain the effect of design. By using a hologram for an input information display portion that occupies an area equal to or more than half of the surface of the information device, it is possible to provide an information device having high operability, an eye catch effect, and the like, and a high design property.

The input information display section may be formed by attaching a hologram as a label, transferring a transfer foil, or sandwiching a hologram sheet. FIG.
A cross section of a state where the hologram label is affixed to the contact terminal or the hologram transfer foil is transferred to the contact terminal,
FIG. 6 shows a cross section in which the hologram sheet is sandwiched on the contact terminals. In the case of FIG. 5, a printing base material layer 22 and a normal printing ink layer 23 are provided on the contact terminal 21, and a transparent hologram label including a hologram base material layer 25 and a hologram layer 26 is laminated thereon. Alternatively, a transparent hologram transfer foil is transferred. A protective layer 28 is provided on the transparent hologram label via an adhesive layer 27.

In the case of FIG. 6, a printing base material layer 22 and a normal printing ink layer 23 are provided on the contact terminal 21, and a hologram base material layer 25 and a hologram layer 2
6 are laminated.
A protective layer 28 is provided on the transparent hologram sheet via an adhesive layer 27. The protective layer 28 is a layer that protects the hologram layer and the print layer 23 to provide abrasion resistance and light resistance, and is generally made of a material such as a wear-resistant resin or silicon. The contact terminal 21 may be a touch panel type terminal or a plastic molded terminal, or may be a transparent skeleton terminal as described above.

However, the above-described embodiment is merely an example, and the layer configuration can be changed as needed. For example, the adhesive layers 24 and 27 may be used as a hot-melt adhesive.
The hologram layer may be transferred by thermal transfer. In addition, a transparent pressure-sensitive adhesive can be appropriately used between the layers so as to improve the adhesive strength, as long as the visibility is not impaired. The hologram to be used may be a relief hologram, a Lippmann hologram, or may be a layer made of a diffraction grating.

Next, a method of manufacturing a transparent hologram, which is a main component of the input information display medium 11, will be described. First, an example of an arrangement for photographing a transparent hologram will be described with reference to FIG. In FIG. 7, reference numeral 31 denotes a hologram recording photosensitive material. When a relief type hologram is obtained as a final hologram, a relief type hologram photosensitive material such as a photoresist is used. A volume phase type hologram photosensitive material such as a polymer is used. When the hologram recording photosensitive material 31 is turned into a transparent hologram, a character to be displayed or the like is written in a position surrounding the hologram recording photosensitive material 31 when the input information is viewed through the transparent hologram. The displayed display body 32 is arranged. Display 32
May be a display body on which characters, numerals, and the like are written on a normal transparent plate or translucent plate. The display body is irradiated with illumination light 33 and then the hologram recording photosensitive material 3
An object beam 34 incident on the object 1 is obtained.

On the other hand, in the case of a relief type hologram, a reference beam 35 from the direction of external light for reproducing a final hologram from the same side as the incident side of the hologram recording photosensitive material 31 on the side of the object light 34, and a volume hologram. In the case of, the reference beam 36 is incident from the direction opposite to the direction of the external light for reproducing the final hologram on the side opposite to the incident side of the object beam 34 of the hologram recording photosensitive material 31, and the relief type hologram or the volume type Record the hologram. In the case of a switchable hologram, the hologram recording photosensitive material 31 may be irradiated with illumination light 33 to change the arrangement position of the display body 32 to perform multiplex recording. In the case of a switching hologram, a plurality of input auxiliary information displays can be recorded in the same space.

The transparent hologram recorded as described above or the hologram copied from the emboss type is provided with a transparent reflection layer and used for an input information display medium. In the case of a relief type hologram, in the case of a transparent reflection hologram, as shown in a cross section in FIG. 8, a transparent relief hologram is formed on an uneven relief surface 42 corresponding to the interference fringe pattern of the hologram of the transparent relief type hologram forming layer 41. A transparent thin film layer made of a transparent material having a different refractive index from the relief hologram forming layer 41, a dielectric multilayer film, or a transparent reflective layer 43 made of a thin metal reflective film that becomes translucent is provided by a method such as vapor deposition. Transparent reflection hologram 4
0 (for details, see, for example, JP-A-61-292181). However, in the case of a volume hologram, it is not necessary to provide such a reflective film.

When the relief type transparent reflection hologram 40 is viewed by the naked eye E1 from substantially the front, as shown in FIG. 8, the display characters 3 located behind (lower layer) can be seen directly. However, when viewed from an oblique direction with respect to the front, light for reproducing recorded information diffracted by the surrounding external light hitting the transparent reflection hologram 40 is incident on the naked eye E2. Characters and the like become substantially invisible. If the angle at which the mobile phone 1 is tilted becomes too large, the display becomes difficult to read and the input becomes inconvenient.
The range is preferably about 4 to 5 degrees to about 45 degrees, and more preferably about 4 to 5 degrees to about 30 degrees.

When the contact terminal is used as a transparent material in a backlight light source, a transparent hologram capable of realizing color expression and high designability, preferably of Lippmann type or relief type. When combined with a backlight-type input portion in this way, it is possible to provide the convenience of displaying large characters even in darkness without external light.

Although a mobile phone has been described as an embodiment in this specification, it will be understood by those skilled in the art that the present invention can be similarly applied to an electronic desk calculator having key buttons and buttons, various portable information device terminals, and other devices. It is obvious that the device having the input information display unit of the present invention is not limited to a mobile phone.

[0025]

As described above, the input information display medium or device of the present invention has the following effects. There is an advantage that a plurality of displays can be made in the same area as the conventional information display space and the display space can be used effectively. By using a hologram whose display image is switchable, a plurality of pieces of input auxiliary information can be displayed in the same space. By combining with a backlight type input part, large characters can be displayed even in darkness without external light. It also has an eye catching effect, etc., and can realize an information device terminal with high designability. By using a plurality of holograms for the hologram sticking layer, the visibility can be further improved and the space can be effectively used.

[Brief description of the drawings]

FIG. 1 is a diagram showing an input information display section of a mobile phone having an input information display medium of the present invention.

FIG. 2 is a diagram illustrating a state in which an input information display unit is observed from substantially the front of the mobile phone.

FIG. 3 is a diagram illustrating a state in which an input information display unit of the mobile phone is observed from an angle of 10 degrees to the left.

FIG. 4 shows an input information display unit when a switchable transparent hologram is used.

FIG. 5 Affixes a hologram label to a contact terminal,
Or the cross section which transferred the hologram transfer foil to the contact terminal is shown.

FIG. 6 shows a cross section in which a hologram sheet is sandwiched on contact terminals.

FIG. 7 is a diagram illustrating an example of an arrangement for photographing a transparent hologram.

FIG. 8 is a diagram illustrating the operation of a transparent hologram.

FIG. 9 is a diagram showing an input information display portion of a general mobile phone.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Mobile telephone 3 Display character 11 Input information display medium or input information display part (key) 12 Liquid crystal display part 13 Antenna 21 Contact terminal 22 Printing base material layer 23 Normal printing (ink) layer 24, 27 Adhesive material layer 25 Hologram base material Layer 26 Hologram layer 28 Protective layer 31 Hologram recording photosensitive material 32 Display body 33 Illumination light 34 Object light 35, 36 Reference light 40 Relief type transparent reflection hologram 41 Relief type hologram forming layer 42 Concavo-convex relief surface 43 Transparent reflection layer 111 Base + Printing ink layer 112, 112A, 112B Transparent hologram layer 113 Protective layer

Claims (6)

[Claims] When viewed from substantially the front, an input information display located in a lower layer can be seen directly, and when viewed from an oblique direction with respect to the substantially front, the surrounding external light is diffracted and the input recorded on the hologram layer. An input information display medium, characterized in that an information display is visible and an input information display located in the lower layer is substantially invisible. 2. The input information medium according to claim 1, wherein the input information display is displayed on a button key or a button. 3. The input information display medium according to claim 1, wherein the hologram layer is a switchable hologram. 4. When viewed from substantially the front, the input information display located in the lower layer can be seen directly, and when viewed from the oblique direction with respect to the substantially front, the surrounding external light is diffracted and the input recorded on the hologram layer. An apparatus having an input information display unit, wherein an information display is visible, and an input information display located in the lower layer is substantially invisible. 5. The device having an input information display unit according to claim 4, wherein the device is a mobile phone or an electronic desk calculator. 6. An apparatus having an input information display section according to claim 4, wherein the hologram layer is a switchable transparent hologram.