JPH0337056Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an input character sheet for a tablet input device for inputting information such as characters and symbols indicated with an input pen.

[Technical background of the invention]

In the tablet input device, an input character sheet is placed on the tablet, and a code signal corresponding to the information is input by specifying information such as characters and symbols printed on the input character sheet with an input pen. It is a device that can input information written on an input character sheet into an electronic computer or other information processing device.

The input character sheet (hereinafter referred to as character sheet) used in this tablet input device is printed on one or both sides of a paper or resin sheet in which information such as characters and symbols to be input is associated with the position on the tablet. has been done.

This character sheet needs to withstand frequent use, and also needs to be placed on the tablet so that the information specified by the input pen on the character sheet can be reliably input.

Therefore, various studies have been made regarding the structure and handling of such character sheets from the viewpoint of reliability, durability, etc. Among them, there are three main methods:

One method is to use paper or resin sheets with predetermined information printed on them as character sheets (hereinafter referred to as the single method), and the other method is to use paper or resin sheets with predetermined information printed on them as they are (hereinafter referred to as the single method). A method of using a character sheet made of a resin sheet by placing a transparent resin sheet on the side that the input pen contacts (hereinafter referred to as
The other is a method that uses a character sheet made by heat-pressing a transparent protective film on both sides of a paper or resin sheet on which predetermined information is printed (hereinafter referred to as the lamination method). ).

[Problems with background technology]

However, the above three types of systems had the following problems.

In the case of the stand-alone method, there was a risk that the printed information would be lost because the input pen would come into direct contact with the information printed on the character sheet. Furthermore, if the character sheet is paper, the entire character sheet expands and contracts due to changes in humidity, resulting in each piece of information being positioned on the tablet deviating from its predetermined position on the tablet. The character sheet placed on the tablet is bent, and the tablet and character sheet do not come into close contact with each other, resulting in a problem that information indicated by the input pen cannot be input accurately. On the other hand, if the character sheet is made of a resin sheet, the problem of expansion and contraction of the character sheet due to changes in humidity does not occur, but in this case there is a problem that the character sheet itself becomes expensive. .

On the other hand, in the case of the cover method, the input pen does not directly touch the information printed on the character sheet, so the problem of printed information disappearing does not occur, but the information is viewed through the cover, which makes it difficult to see. Ta. Furthermore, since the cover is simply placed on the surface of the character sheet, it has not been possible to solve the problem of expansion and contraction of the character sheet due to changes in humidity when the character sheet is paper.

In contrast to the above two methods, the character sheet in the case of the lamination method has a structure in which protective films are adhered to both sides of the paper or resin sheet on which information is printed, so all of the above problems are solved. but,
This lamination method also had the following problems.

When a character sheet is attached to a tablet or when performing various operations such as when inputting information with an input pen, the character sheet becomes charged with static electricity due to friction caused by hands, clothing, etc. Due to this static electricity, dust and dust tend to adhere to the surface of the character sheet, and the unattached dust and the like are difficult to remove, making the character sheet very easily stained. In addition, in the case of a book-type character sheet or a sliding type character sheet in which multiple character sheets are stacked, the character sheets are attracted to each other by this static electricity, so it is difficult to paging or sliding the character sheets. The process of selecting character sheets was very time-consuming. Incidentally, this problem caused by static electricity is common not only to the laminating method but also to the other two methods.

[Purpose of invention]

The present invention has been made in view of the above-mentioned drawbacks of the conventional technology, and aims to provide an input character sheet for a tablet input device that is inexpensive, has high input reliability, has an easy-to-read printed surface, and is not affected by static electricity. purpose.

[Summary of the idea]

Therefore, regarding the input character sheet of this invention,
The above object is achieved by having a sheet-like base material printed with information such as characters and symbols, and having a protective film fixed to both sides thereof to prevent charging.

[Example of idea]

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 and 2.

In the figure, 1 is an input character sheet. This character sheet is composed of paper (sheet-like base material) 2 and a transparent conductive laminate film 3. On both sides 2a and 2b of the paper 2, information such as characters and symbols is printed in correspondence with the position on the tablet (not shown), and these surfaces are printed so as to cover this printed information. The conductive laminate film 3 is fixed to 2a and 2b by thermocompression bonding. In this embodiment, information is printed on both sides 2a and 2b of the paper 2, but information is printed on one side (for example, side 2).
Even if information is printed only on surfaces 2a and 2, to prevent the influence of humidity.
A conductive laminate film 3 is fixed to both sides of b. This conductive laminate film 3
As shown in the figure, a conductive film 4 is coated with an adhesive 5. The conductive film 4 is made of a plastic film that has excellent mechanical strength, heat resistance, etc., and is conductive. On its surface 4a, so that the information printed on the paper 2 does not become difficult to see due to reflected light, Anti-reflection treatment has been applied. Further, the adhesive 5 is an adhesive that has the property of adhering to paper or the like by heat treatment, and the adhesive 5a and the surfaces 2a and 2b of the paper 2 are adhered.

Conductive films include those in which a conductive substance is mixed into the film material, those in which a conductive substance is firmly adhered to the surface of the film, and those in which conductivity is formed on the surface or surface layer of the film through chemical treatment. Any material may be used as long as it prevents charging.

For the above character sheet 1, both sides of paper 2
Since a and 2b are covered with the conductive laminate film 3, the surface of the paper 2 does not come into contact with the outside air, and the paper 2 is not affected by changes in humidity. Therefore, since the paper 2 does not expand, contract, or warp, misalignment of information with respect to the tablet does not occur, and the reliability of input is improved. Also, the input pen (not shown) is
Since there is no direct contact with the surfaces 2a and 2b, there is no risk of the printed information being lost. Furthermore, the mechanical strength, heat resistance, etc. of the character sheet 1 are sufficiently enhanced by the conductive laminate film 3. In addition, since the conductive film 4 is used, there is no risk that the character sheet 1 itself will be charged with static electricity, so dirt and dust are unlikely to adhere to the character sheet 1, and the character sheet 1 can be used in a stacked manner. In this case, the paging operation, sliding operation, etc. of the character sheet 1 can be performed without being affected by static electricity, so that the selection operation of the character sheet 1 can be easily performed. Furthermore, since paper can be used as the sheet-like base material on which information is printed, the character sheet 1 can be manufactured at low cost, and the surfaces 2a and 2b on which information is printed are made of conductive laminate. Since the film 3 is fixed, the surfaces 2a and 2b can be viewed from the outside.
be able to accurately and quickly recognize the information contained in the text.

[Effect of idea]

As explained above, the input character sheet of the present invention has an antistatic film fixed to both sides of the sheet-like base material on which information is printed.
There is no risk that the character sheet itself will be charged with static electricity. Therefore, the character sheet is less likely to attract dirt, dust, etc., and the character sheet is less likely to become dirty. Furthermore, when stacking multiple character sheets and using them as book-type or sliding-type character sheets, there is no problem of the character sheets sticking to each other due to static electricity when paging or sliding the character sheets. , the selection work of character sheets becomes easier. Furthermore, there is no fear that the electronic circuit of the tablet input device will be affected by static electricity generated on the character sheet, causing it to malfunction.

[Brief explanation of drawings]

FIG. 1 is a sectional view illustrating an embodiment of the present invention;
FIG. 2 is a cross-sectional view illustrating a conductive laminate film. 1... Input character sheet, 2... Paper (sheet-like base material), 2a, 2b... Surface on which information is printed, 3
... Conductive laminate film, 4 ... Conductive film, 5 ... Adhesive, 5a ... Adhesive surface.

Claims (1)

[Scope of utility model registration request] An input character sheet consisting of a sheet-like base material on which information such as characters and symbols to be input is printed in correspondence with the positions on the tablet, and a plastic protective film fixed to both sides of the base material. An input character sheet for a tablet input device in which one sheet is selected from a plurality of laminated sheets and used for inputting information, wherein the plastic protective film is an antistatic film. input character sheet.