JPH08138486A - Pen input touch screen - Google Patents

Abstract

PURPOSE: To prevent erroneous inputting due to a wrong touch effectively during pen inputting, by providing a wrong touch inputting unable area in which an electric insulating spacer of a specified diameter is formed in a specified range of pitch. CONSTITUTION: A fixed side electric insulating base material 1 and a movable side electric insulating base material 2 are arranged superimposedly with the direction between both of fixed side and movable side band-shaped electrodes shifted at 90 deg. with each other, as well as both of fixed side and movable side resistant films 20, 10 being countered through a space by means of multiple electric insulating spacers 3. On this occasion, a wrong touch inputting unable area is formed on the film 10, or the film 20 with a specified pitch by means of an electric insulating spacer 3 of specified diameter. A diameter of one of the spacer 3 in the area 4 and the other area is made approximately 20μm to 70μm as well as a pitch of the spacer 3 in the area 4 is made in a range of approximately 200μm to 500μm. Thereby, the wrong touch information during pen inputting is not inputted and erroneous inputting can be prevented as the resistant film is not touched by the wrong touch during pen inputting in the area 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resistor which is arranged on a screen of a display device such as an LCD (liquid crystal display) or a CRT (cathode ray tube) and is capable of pen input according to the instruction on the screen of the see-through display device. The present invention relates to a film type pen input touch screen.

[0002]

2. Description of the Related Art The basic structure of a conventional so-called resistive film type touch screen is such that a transparent fixed-side resistive film is formed on one entire surface and a pair of parallel fixed-side strip electrodes are formed on both ends of one surface. A fixed-side insulating base material, a transparent movable-side resistance film is formed on the entire one surface, and a pair of parallel movable-side strip electrodes are formed on both ends of the one surface. A movable movable insulating substrate,
It has a large number of insulating spacers formed at a fixed pitch on the fixed-side resistance film or the movable-side resistance film, and the movable-side and fixed-side resistance films face each other across a space and are fixed by the large number of insulating spacers. The direction between the strip-shaped electrodes on the movable side and the movable side is shifted by 90 degrees, and the fixed-side insulating base material and the movable-side insulating base material are arranged so as to overlap each other, and pen input is possible in the entire area where the insulating spacer is formed. It is a thing.

This touch screen is used by disposing a display device behind it (see FIG. 6). The touch screen and the display device are a coordinate detection device, a CP
U, a drawing control device, and the like. The coordinate detection device detects the position of the pen on the touch screen and sends the coordinate data to the CPU. The CPU performs the processing caused by the coordinate data and activates the drawing control device. The drawing control device performs calculations to draw a necessary display display such as pen handwriting, sends a command to the display device,
Causes the display device to display such as drawing.

In the resistive film type touch screen, for example, the x coordinate of the point P in FIG. 7 is detected as follows. First, a writing object such as a finger or a pen is pressed against an arbitrary point P on the movable insulating base material to bend the movable insulating base material toward the fixed insulating base material between the pitches of the insulating spacers. No, when the movable-side resistance film is brought into contact with the fixed-side resistance film, a voltage is applied to the movable-side resistance film between the strip electrodes from the external power source, so that the movable-side resistance film of the movable-side insulating base material has X A potential gradient is generated in the direction, and the voltage ex is divided at a point P on the movable-side resistance film of the movable-side insulating base material.
Occurs, and this voltage ex is detected from the voltage dividing output end of the fixed side insulating base material to which no voltage is applied from the external power source. Here, when the coordinates of the point P are (x, y), the distance between the strip electrodes of the movable insulating base material is L1, and the voltage between the strip electrodes is E,
The x coordinate of the point P can be detected from the voltage ex by the relationship of ex / E = x / L1. Also, stop applying voltage from the external power supply to the movable resistance film between the strip electrodes of the movable insulation base material, and apply voltage from the external power supply to the fixed resistance film between the strip electrodes of the fixed insulation base material. Then, the divided voltage ey is applied to the point P on the fixed-side resistance film of the fixed-side insulating base material.
Occurs, and this voltage ey is detected from the voltage dividing output end of the movable insulating base material. Here, when the distance between the strip electrodes of the movable insulating base material is L2 and the voltage between the strip electrodes is E, ey / E
The y coordinate of the point P can be detected from the voltage ey according to the relationship of = y / L2.

Hereinafter, pressing a pen or the like to write a character or the like on the movable side insulating base material and bending the movable side insulating base material toward the fixed side insulating base material will be referred to as a "writing operation". In addition, the movable-side insulating base material is bent toward the fixed-side insulating base material through the insulating spacers, and the movable-side resistance film and the fixed-side resistance film come into contact with each other is called "resistive film contact". It is called "input" that the "resistive film contact" is performed by the "writing operation" or the like, and the processing caused by the coordinate data of the character or the like is performed.

[0006]

However, in order to input with a pen, the part from the outside of the little finger of the hand holding the pen to the wrist must be placed on the movable insulating base material (hereinafter referred to as "with hand"). In many cases, in a touch screen where the insulating spacer pitch is large over the entire area where the insulating spacer is formed, the "touched" portion of the movable side insulating base material makes contact with the resistive film, resulting in "touched" information. It was easy to make an erroneous input such as up to the input.

On the contrary, in the touch screen in which the pitch of the insulating spacers is small in the entire area where the insulating spacers are formed, even if the pen is pressed with a strong force, the resistance film is not brought into contact with the touch screen, and the input omission such that the pen cannot be input is likely to occur. .

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problems and provide a pen input type touch screen having an area where an erroneous input does not occur even if the user touches it.

[0009]

In the pen input type touch screen of the present invention, a transparent fixed-side resistive film is formed on the entire one surface, and a pair of parallel fixed-side strip electrodes are formed on both ends of the fixed surface. Side insulating base material, a transparent movable side resistive film is formed on the entire one side, and a pair of parallel movable side strip electrodes are formed on both sides of one side. It has a side insulating base material and a large number of insulating spacers formed at a predetermined pitch on the fixed-side resistance film or the movable-side resistance film, and the movable-side and fixed-side resistance films form a space by a large number of insulating spacers. Both sides of the strip-shaped electrodes on both the fixed side and the movable side face each other while sandwiching them.
The fixed-side insulating base material and the movable-side insulating base material are arranged so as to be offset from each other by 0 degree, and the diameter is about 20 μm in a pen input type touch screen capable of pen input over the entire area where an insulating spacer is formed. The insulating spacers having a thickness of about 70 μm have hand input disabled areas formed with a pitch within the range of about 200 μm to about 500 μm.

The pen input type touch screen of the present invention may be arranged such that the non-input area with a hand occupies the entire area where the insulating spacer is formed.

In the above-mentioned pen input type touch screen of the present invention, the non-hand inputtable area occupies a part of the area where the insulating spacer is formed, and the area other than the hand non-inputtable area is about 500 μm to about 2000 μm. Alternatively, the insulating spacers may have a pitch larger than the pitch of the hand-input disabled area.

The pen input type touch screen of the present invention may have a structure in which the insulating spacer is formed by dots.

The pen input type touch screen of the present invention may have a structure in which the insulating spacer is formed in a net shape.

The present invention will be described in more detail with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of a pen input type touch screen according to the present invention. 2 to 5 are schematic plan views showing the formation state of the insulating spacer of the pen input type touch screen according to the present invention. FIG. 6 is an explanatory view when a display device is arranged behind the pen input type touch screen according to the present invention. FIG. 7 is an explanatory diagram of a method of stacking the fixed side insulating base material and the movable side insulating base material in the pen input type touch screen according to the present invention. In the figure, 1 is a fixed side insulating base material, 10 is a fixed side resistive film, 2 is a movable side insulating base material, 20 is a movable side resistive film, 21 is a support film, 22 is an insulating base material base, 23 is an adhesive layer, Reference numeral 3 indicates an insulating spacer, 4 indicates a non-inputtable area with a hand, and 5 indicates an adhesive material.

As the fixed-side insulating substrate 1, a transparent film or sheet made of a polyethylene terephthalate resin, a polycarbonate resin, a polystyrene resin, a cellulose resin, a triacetate resin, a polyethersulfone resin or the like is used in addition to the glass plate. Further, the fixed-side insulating base material 1 may be composed of only one sheet, or may be a laminated body formed by stacking a plurality of sheets. In any case, the thickness of the fixed-side insulating base material 1 needs to be 500 μm or more. Thickness is 5
If the thickness is less than 00 μm, when a transparent film is used as the fixed side insulating base material 1, the fixed side insulating base material 1 is excessively bent during pen input, and the screen of an LCD, CRT, or the like is easily touched and scratched. Because. Also, when a glass plate is used as the fixed side insulating base material 1, the fixed side insulating base material 1 is easily broken by the writing operation at the time of pen input.

The fixed-side resistance film 10 is formed on the entire one surface of the fixed-side insulating base material 1. As the material of the fixed-side resistance film 10, metals such as gold, silver, copper, tin, nickel, and palladium, and transparent materials such as tin oxide, indium oxide, antimony oxide, zinc oxide, cadmium oxide, and indium tin oxide (ITO) are used. Use a simple metal oxide. As a method for forming the fixed-side resistance film 10, there are a vacuum vapor deposition method, a sputtering method, an ion plating method, a CVD method and the like.

The fixed-side strip electrode is the fixed-side insulating substrate 1.
It is formed on both ends of one surface of (see FIG. 7). The strip electrodes are formed in parallel so as to sandwich the area where writing is performed. The material includes silver paste, copper paste, nickel paste, and the like. Further, as a method for forming the strip electrode, there are a screen printing method, a gravure printing method, a dispenser method and the like.

The movable side insulating base material 2 is a laminated body in which a support film 21 and an insulating base material base 22 are adhered via an adhesive 23.

The insulating base 22 is the fixed insulating base 1.
A transparent film similar to the above is used. It may be composed of only one sheet, or may be a laminated body formed by stacking a plurality of sheets. In any case, the thickness of the insulating base material 22 is about 50.
Is about 250 μm. Particularly, 125 μm is preferable. 25 thickness
If the thickness is larger than 0 μm, the movable insulating base material 2 is less likely to bend when pen input is performed, and the light transmittance is deteriorated. On the other hand, if the thickness is less than 50 μm, permanent bending will occur and erroneous input is likely to occur.

The movable side resistance film 20 is formed by appropriately selecting from the same material and the same forming method as the fixed side resistance film 10 of the fixed side insulating base material 1.

The movable side strip electrode is the fixed side insulating base material 1 described above.
It is formed by appropriately selecting from the same material and the same forming method as those of the fixed-side strip-shaped electrode formed in.

As the support film 21, a transparent film made of polyethylene terephthalate resin, polycarbonate resin, polystyrene resin, cellulose resin, triacetate resin, polyether sulfone resin or the like is used. The thickness is about 20 μm to about 40 μm. Especially 25μm and 38μ
m is preferred.

The adhesive layer 23 is a layer for bonding the insulating base 22 and the supporting film 21 together, and is screen-printed with an acrylic adhesive or the like so as to have a thickness of about 20 μm to about 30 μm. Method, roll coater method, dipping method, spinner method, etc.

The support film 21 and the movable side resistance film 20.
When the thickness of the laminated body of the adhesive layer 23 and the insulating base material 22 is set to about 125 μm to about 200 μm, the movable side resistance film is less likely to be damaged even if a shock or scratch is generated by the writing operation, and the input is made. Can be surely performed.

A large number of insulating spacers 3 are formed on the fixed-side resistance film 10 of the fixed-side insulating base material 1 or on the movable-side resistance film 20 of the movable-side insulating base material 2 with a predetermined pitch and a predetermined area shape. The pitch does not mean the distance between the center of one insulating spacer 3 and the center of the closest insulating spacer 3 adjacent thereto, but the end portion of one insulating spacer 3 and the adjacent one. It is the distance from the nearest end of the insulating spacer 3.

The pitch of the insulating spacers 3 in the hand-input disabled area 4 is in the range of about 200 μm to about 500 μm. If the thickness is less than about 200 μm, it becomes difficult for the resistive film to come into contact with the writing operation, and the input omission is likely to occur.
On the other hand, if the thickness is larger than about 500 μm, the input may be made by hand and an erroneous input is likely to occur.

The pitch of the insulating spacers 3 in the hand-input disabled area 4 may be set in proportion to the height of the insulating spacers 3 described later. For example, if the height of the insulating spacer 3 is increased by 1 μm, the pitch may be increased by about 50 μm. Further, the pitch in the hand-input disabled area 4 may be set in proportion to the numerical value of the total thickness of the movable insulating base material 2 and the movable resistance film 20.

The pitch of the insulating spacers 3 in the hand-input disabled area 4 may be set in proportion to the thickness of the support film. For example, when the thickness of the supporting film 21 is 25 μm, the pitch of the insulating spacers 3 is 250 μm to 350 μm.
When the thickness of the supporting film is 38 μm, the pitch of the insulating spacers 3 is preferably 400 μm to 500 μm.

The pitch of the insulating spacers 3 in the hand-input disabled area 4 is, for example, 300 μ as a preferable numerical value.
There is a pitch of m ± 50 μm. This value is a value when the height of each insulating spacer 3 is 6 μm, the diameter is 40 μm, and the thickness of the movable insulating base material 2 is 175 μm.

The area shape of the insulating spacer 3 in the hand-input disabled area 4 is a trapezoidal area formed in the lower right portion of the fixed side insulating base material 1 or the movable side insulating base material 2 (FIG. 2). Insulating substrate 1 or movable insulating substrate 2
Area (FIG. 3) formed in the entire area of the fixed side insulating base material 1 or the movable half side insulating base material 2 having a shape larger than the right half surface (FIG. 4), fixed side insulating base material 1 or a region shape (FIG. 5) formed in a shape smaller than the right half surface of the movable insulating base material 2. In addition to these, a polygonal shape such as a pentagon or a shape corresponding to a part from the outer side of the little finger of the hand holding the pen to the wrist may be used. The above is to form a case where a right-handed person holds a pen with the right hand to perform pen input, and the hand-writable input area 4 is formed in the lower right portion or the right half surface, but a left-handed person holds the pen with the left hand. In order to deal with the case of pen input, the hand-input disabled area 4 may be formed in the lower left portion or the left half surface.

The hand-input disabled area 4 may be formed so as to occupy the entire area where the insulating spacer 3 is formed, or may be formed so as to occupy a partial area where the insulating spacer 3 is formed. The entire area is all areas where the write operation is performed. The partial area is a part of all areas where the writing operation is performed.

The pitch of the insulating spacers 3 when the area other than the hand-input disabled area 4 is formed on the pen input touch screen will be described below.

The pitch of the insulating spacers 3 in the area other than the hand-input disabled area 4 is about 500 μm to about 2000 μm.
The pitch is within the range of, and is larger than the pitch of the hand-input disabled area. When it becomes smaller than about 500 μm,
It is easy to get finger input. Also, if it is larger than about 2000 μm, it will be input even if it is a lighter touch than with a hand (for example, when a part of the hand holding the pen touches lightly with the moment of writing or dust etc. adheres), it will be entered incorrectly. It will be easier.

The pitch of the insulating spacers 3 in the region other than the hand-input disabled region 4 may be set in proportion to the numerical value of the height of the insulating spacers 3. The pitch in the area other than the hand-input disabled area 4 may be set in proportion to the total thickness of the movable insulating base material 2 and the movable resistance film 20. For example, if the height of the insulating spacer 3 is increased by 1 μm, the pitch may be increased by about 50 μm.

The pitch of the insulating spacers 3 in the area other than the hand-input disabled area 4 is, for example, 1000 μm ± 50 μm. This value is such that the total thickness of the movable insulating base material 2 and the movable resistance film 20 is 175.
μm, the height of one insulating spacer 3 is 6 μm, and the diameter is 40
It is a numerical value when it is μm. Another preferred value is a pitch of 900 μm ± 50 μm. This value indicates that the total thickness of the movable insulating substrate 2 and the movable resistance film 20 is 1.0.
mm, the height of one insulating spacer 3 is 4 μm, and the diameter is 40
It is a numerical value in the case of μm.

The shape of each of the insulating spacers 3 in the hand-input disabled area 4 and the other areas is, for example, a substantially cylindrical shape, a substantially elliptical cone shape, or an elliptic cone shape with a rounded tip.

The height of each insulating spacer 3 in the hand-input disabled area 4 and other areas is about 5 to about 10.
μm. Particularly, 6 μm to 8 μm is preferable. About 5 μm
At smaller sizes, resistive film contact can easily occur too much,
The movable-side resistance film 20 is likely to be damaged or erroneously input. On the other hand, when the thickness is larger than about 10 μm, the valley between the insulating spacer 3 and the insulating spacer 3 becomes too deep, and it becomes difficult to make contact with the resistive film, and input omission easily occurs.

The diameter of each insulating spacer 3 in the hand-input disabled area 4 and other areas is about 20 μm.
It is about 70 μm. If it is smaller than about 20 μm, the diameter is too small when forming the insulating spacer 3, and when applying a forming method such as photofabrication,
It becomes difficult to set the height of each insulating spacer 3 to about 5 μm or more. On the other hand, if it is larger than about 70 μm, it becomes larger than one pixel of the image displayed on the display device, which makes it difficult to see the image. The diameter of one insulating spacer 3 is about 30 μm as a preferable value.
There is about 40 μm. With this numerical value, it is possible to simultaneously satisfy the condition of the height of each insulating spacer 3 and the condition that the image is easy to see.

As a specific method of forming the large number of insulating spacers 3 in the hand-input disabled area 4 and the other areas, there is a so-called photofabrication forming method capable of performing ultraprecision processing. First, a transparent insulating film is entirely formed on the fixed-side resistance film 10 or a movable-side resistance film 20 described later, and a mask original plate composed of a light-transmitting portion and a non-light-transmitting portion is covered and exposed. , The part of the insulating film corresponding to the light-transmitting part of the mask original plate is cross-linked and cured, and the part of the insulating film corresponding to the non-light-transmitting part of the original plate is dissolved with a developing solution to insulate the desired pattern. Pattern the coating. This pattern has a dot shape or a mesh shape. As the material of the insulating film, an ultraviolet curable resin based on acrylic resin is used. Further, as a method for forming the insulating coating, there are a screen printing method, a roll coater method, a dipping method, a spinner method and the like.

The fixed-side insulating base material 1 and the movable-side insulating base material 2 on which the strip-shaped electrodes are formed are arranged so that the resistance films on the movable side and the fixed side face each other with a space interposed therebetween by a large number of insulating spacers 3. And, the inter-electrode direction of the fixed-side insulating base material 1 and the inter-electrode direction of the movable-side insulating base material 2 are overlapped with each other so as to deviate by 90 degrees, and a portion other than the area where the writing operation is performed, for example,
The peripheral edges of the fixed-side insulating base material 1 and the movable-side insulating base material 2 are adhered to each other with an adhesive material 5 or the like to obtain a pen input type touch screen.

As the adhesive material 5, there are adhesive agents such as acrylic resin, epoxy resin, phenol resin, vinyl resin and the like. A double-sided adhesive tape may be used instead of the adhesive. The adhesive 5 has a thickness of about 25 μm to about 100 μm. Further, in order to suppress the occurrence of local input omission only in the vicinity of the adhesive and to ensure the insulation between the electrodes, the thickness of the adhesive 5 may be about 60 μm to about 80 μm.

[0043]

The pen input type touch screen of the present invention according to claim 1 is capable of pen input over the entire area, and is approximately 200
It has a hand-incapable area in which insulating spacers are formed at a pitch in the range of μm to about 500 μm. Therefore,
Resistive film contact may not be possible depending on how the pen is touched. In addition, since it is possible to selectively set an area that is easy to touch when inputting with a pen as an area that cannot be touched by hand, collect statistical data such as where is the area where incorrect input is likely to occur due to touching, and select based on that data. It is possible to form a non-touchable input area, and it is possible to efficiently prevent erroneous input due to touching at the time of pen input. Also,
It is also possible to collect the statistical data for each model and size of the touch screen, and to change the formation location of the non-touchable input area for each model and size.

Further, the pen input type touch screen of the present invention according to claim 2 is capable of pen input in the entire area and has a hand input in which an insulating spacer is formed at a pitch within a range of about 200 μm to about 500 μm. The impossible area occupies the entire area where the insulating spacer is formed. Therefore, in all regions where a large number of insulating spacers are formed, the resistive film is not contacted by the touch of the pen input.

Further, the pen input type touch screen of the present invention according to claim 3 is capable of pen input in the entire area and has a hand input in which an insulating spacer is formed at a pitch within a range of about 200 μm to about 500 μm. Impossible area and about 500 μm
The entire region was divided into two regions, that is, a region within a range of ˜2000 μm and occupied by an insulating spacer that was larger than the pitch of the hand-input disabled region. Therefore, in the hand-input impossible area, the resistance film may not be contacted by the hand when the pen is input, and in the area other than the hand-input impossible area, the resistance film may be contacted and input by the finger depending on the hand writing operation. , Lighter contact with the hand does not contact the resistive film.

[0046]

[Example] A glass plate having a length of 73 mm, a width of 125 mm, and a thickness of 1.1 mm was used as a fixed-side insulating base material, and tin oxide was used on the entire upper surface thereof.
A 300 Å thick transparent resistance film was formed by the CVD method. Next, screen-print a UV-curable acrylic resin on the resistance film to form a transparent insulating film over the entire surface, and then use photolithography to form the insulating film formed in the area where the insulating film is to be written. The film was patterned to form a large number of dot-shaped insulating spacers, and at the same time, the area outside the area where the writing operation was performed was left as an insulating portion area. The height of each dot-shaped insulating spacer was 6 μm, and the diameter of each dot-shaped insulating spacer was 40 μm. The writing operation area was divided into two areas, that is, a trapezoidal hand-input area and another area, depending on the pitch of the insulating spacers.
In the trapezoidal non-inputtable area, the pitch of the insulating spacer formed in the lower right part of the fixed side insulating base material is 250 μm in the non-inputtable area, and 1000 μm in other areas.
And Next, by screen-printing silver paste on both ends of the area to be written, the length of 124 mm,
A pair of parallel strip-shaped electrodes having a width of 3 mm were separated by 60 mm and formed parallel to the lateral direction of the glass plate.

On the other hand, a hard coat layer made of acrylic resin having a thickness of 2 μm was formed on one entire surface of a transparent insulating substrate base made of polyethylene terephthalate resin having a length of 72 mm, a width of 124 mm and a thickness of 175 μm. In addition, a transparent support film made of polyethylene terephthalate resin with a thickness of 25 μm has a thickness of 500 Å by sputtering using ITO on one entire surface.
The transparent resistance film of the
After a resist was formed by a photolithography method while leaving a width of 59 mm and a width of 119 mm), the resistance film in the portion where the resist was not formed was removed by etching. Next, by screen-printing silver paste on both sides of the resistive film, length 58mm, width 3m.
A pair of m-shaped strip electrodes were formed 117 mm apart to be parallel to the lateral direction of the glass plate. Further, the lead wire connected to each strip electrode and the lead wire connected to each strip electrode of the fixed side insulating base material after bonding were formed by screen printing a silver paste. The surface of the insulating substrate base on which the hard coat layer is not formed and the surface of the supporting film on which the resistance film is formed have a thickness of 25 μm.
The acrylic resin of m was used as an adhesive layer to be bonded to obtain a movable insulating base material.

Furthermore, a thickness of 60 μm is provided on the periphery of the movable insulating base material.
m of acrylic resin is formed by screen printing, and a large number of insulating spacers make both the movable and fixed resistance films face each other with a space in between and the direction between the fixed and movable strip electrodes. Was shifted by 90 degrees, the fixed side insulating base material and the movable side insulating base material were placed so as to overlap with each other, and the peripheral edges were bonded by an adhesive material to obtain a touch screen.

When this touch screen is arranged on the screen of the display device and pen input is performed, pen input is possible in the entire area where a large number of insulating spacers are formed, and finger input is not possible. No erroneous input occurred in the non-inputtable area.

[0050]

The pen input type touch screen of the present invention has the above-mentioned configuration and operation, and has a diameter of about 20 μm.
The insulating spacer of about 70 μm is about 200 μm to about 500 μm
Since the hand-held non-input area is formed with a pitch within the range, the following effects can be obtained.

In other words, since the resistive film is not touched by the touch at the time of pen input in the hand input impossible area, the hand touch information at the time of pen input is not input and erroneous input does not occur.

Although the resistive film does not come into contact with the hand depending on the hand, the movable side insulating base material is easily bent toward the fixed side insulating base material depending on the writing operation by the pen, and the resistance does not occur even if the pen is not pressed with an excessive force. Since it touches the membrane, there is no possibility of missing input such as pen input.

[Brief description of drawings]

FIG. 1 is a schematic partial cross-sectional view showing an embodiment of a pen input type touch screen according to the present invention.

FIG. 2 is a schematic front view showing a formation state of an insulating spacer of the pen input type touch screen according to the present invention.

FIG. 3 is a schematic front view showing a formation state of an insulating spacer of the pen input type touch screen according to the present invention.

FIG. 4 is a schematic front view showing a formation state of an insulating spacer of the pen input type touch screen according to the present invention.

FIG. 5 is a schematic front view showing a formation state of an insulating spacer of the pen input type touch screen according to the present invention.

FIG. 6 is an explanatory diagram when a display device is arranged behind the pen input type touch screen according to the present invention.

FIG. 7 is an explanatory diagram of a method of stacking a fixed side insulating base material and a movable side insulating base material in the pen input type touch screen according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed-side insulation base material 10 Fixed-side resistance film 2 Movable-side insulation base material 20 Movable-side resistance film 21 Support film 22 Insulation base material 23 Adhesive layer 3 Insulation spacer 4 Input area with hand 5 Adhesive material

Claims (5)

[Claims] 1. A fixed-side insulating base material having a transparent fixed-side resistance film formed on the entire surface of one surface and a pair of parallel fixed-side strip electrodes formed at both ends of the one surface, and a transparent movable-side resistance film on one surface. A movable insulating base, which is a laminate of a supporting film and an insulating base that are formed on the entire surface and in which a pair of parallel movable electrodes are formed on both ends of one side, and a fixed-side resistive film or a movable side. It has a large number of insulating spacers formed at a predetermined pitch on the resistance film, and the movable film side and the fixed side resistance films face each other across a space by the large number of insulating spacers, and both the fixed side and movable side strip electrodes. 90 between
The fixed-side insulating base material and the movable-side insulating base material are arranged so as to overlap each other, and the diameter is approximately 20 μm in a pen input type touch screen capable of pen input over the entire area where an insulating spacer is formed. The pen input type touch screen, wherein the insulating spacer of about 70 μm has a hand-held non-input area formed with a pitch within a range of about 200 μm to about 500 μm. 2. The pen-input type touch screen according to claim 1, wherein the hand-input-free area occupies an entire area where an insulating spacer is formed. 3. The manual input disabled area occupies a partial area where an insulating spacer is formed, and the area other than the manual input disabled area has a pitch within a range of about 500 μm to about 2000 μm and manual input disabled. The pen-input touch screen according to claim 1, wherein the touch screen is occupied by an insulating spacer that is larger than the pitch of the areas. 4. The pen input type touch screen according to claim 1, wherein the insulating spacer is formed of dots. 5. The pen input type touch screen according to claim 1, wherein the insulating spacer is formed in a net shape.