JP4713647B2 - Auxiliary input device and portable device equipped with the input auxiliary device - Google Patents

Description

  The present invention relates to an input auxiliary device provided in a touch panel type, touch pad type, or tablet type input device, and a portable device including the input auxiliary device.

  Conventionally, as a data input device, there are input devices such as a touch panel type, a touch pad type, and a tablet type in addition to a keyboard. Input devices such as a touch panel type, a touch pad type, and a tablet type are widely used because data can be input by pressing a panel with a finger or a pen tip and an intuitive operation is possible. However, there is a problem that the touch feeling is poor compared to the keyboard.

  In order to solve such problems, several mechanisms have been proposed to give a feeling of pressing by outputting an image or sound or vibrating the input device when pressing or touching the input panel with a fingertip or pen tip. (For example, see non-patent documents 1 and 2). However, with these mechanisms, it is impossible to reproduce “sinking of the fingertip or pen tip when pressed” on the keyboard.

For example, Non-Patent Document 3 describes providing a transparent switch mechanism at a specific location on the front surface of the panel as a technique for reproducing the depression at the time of pressing.
Patent Documents 1 and 2 describe that the front surface of the panel is a movable part.
Non-Patent Literature 4 and Patent Literature 3 describe a method of assisting movement using power such as a motor.

  Further, in Patent Document 4, a portion of the carrying case that accommodates a mobile phone, which is located on the front surface of the operation panel, is configured as an operation cover by a synthetic resin sheet, It is described that a switch position can be easily specified by tactile touching with a fingertip by forming a tactile operating portion having a raised structure.

JP 2002-182831 A JP 2000-222128 A JP 2006-146611 A Japanese Patent Laid-Open No. 11-54953

Fukumoto, Sugimura, “Active Click that can add a click to the touch panel”, Information Processing Society of Japan Interaction 2001, pp. 25-26 Ivan Poupyrev et al., `` Touch Engine: a tactile display for handheld devices '', Proc. Of CHI '02, pp.644-645 Hasegawa et al., "Development of multimedia-oriented operation / display terminal with click operation mechanism", Proceedings of Human Interface Symposium 1996 Hoshino et al., “Tactile Driver: Touch Panel System that Faithfully Reproduces Tactile Feel”, WISS2002 Proceedings

However, in the method described in Non-Patent Document 3 in which a transparent switch mechanism is installed at a specific location on the front surface of the panel, the pressing location is limited, and it is difficult for the operator to perform the pressing operation.
Further, in the methods described in Patent Documents 1 and 2, in which the front surface of the panel is a movable part, there is no restriction on the pressing place, but the inertia increases because the movable part becomes large, and a light pressing operation is performed. It becomes difficult.
In addition, the method described in Non-Patent Document 4 and Patent Document 3 that assists the movement using the power of a motor or the like enables a light operation, but the mechanism becomes complicated, downsizing, and low consumption. There was a problem that it was difficult to reduce power consumption and price.

Further, in the method described in Patent Document 4, it is easy to specify the switch position by making the portion corresponding to the switch position in the operation cover swell up like a bowl, but the switch size and various arrangements Therefore, it is necessary to create an operation cover according to the above, and it is not versatile even if it is difficult to create.
The present invention has been made to solve the above-described problems of the prior art, and has a simple structure without consuming electric power, and gives the operator a feeling of sinking when pressing the panel for input operation. It is an object of the present invention to provide an input auxiliary device that can be used, and a portable device including the input auxiliary device.

In order to solve the above-described problem, the input auxiliary device according to claim 1 is an input auxiliary device that improves a feeling of operation to an input device having a panel on which a pressing operation for data input is performed, wherein the panel When the pressing operation is performed on the panel, the pressed portion is distorted and sinks, and at the same time, the repulsive force generated in the pressed portion is used for the operation. It is characterized by including a gel material that causes a pseudo-pressing sensation on the finger .
According to the present invention, the input auxiliary device is provided on the operation surface of the panel, have a flexibility, when the pressing operation is performed at the panel, at the same time sinking distorted pressed portion, the Because it contains a gel material that creates a pseudo-pressing sensation on the operating finger due to the repulsive force generated at the pressed part, it is operated when the operator presses the panel with a simple structure without consuming power. A feeling of sinking can be given to a person.

According to a second aspect of the present invention, in the input auxiliary device according to the first aspect, the panel is a touch panel provided on a display surface of a display, and the gel material has transparency.
According to the present invention, since the gel material has transparency, the operator can view the display through the gel material, and can perform an operation while viewing the content displayed on the display.

According to a third aspect of the present invention, there is provided the input auxiliary device according to the first or second aspect, wherein the gel material is a urethane or acrylic resin having an Asker C hardness of 5 degrees or less.
The softer the gel material, the greater the amount of sinking and the more likely it is to press, while the touch panel sensitivity also decreases.According to the present invention, the hardness of the gel material is optimized in consideration of such circumstances. It can be set to a high hardness.

The input assist device according to claim 4 is characterized in that, in any one of claims 1 to 3, the gel material has a visible light transmittance of 80% or more.
According to the present invention, the operator can clearly see the display through the gel material and can perform the operation while viewing the contents displayed on the display.

The input auxiliary device according to claim 5 is the input auxiliary device according to any one of claims 1 to 4, wherein the surface of the gel material opposite to the surface in contact with the operation surface of the panel is for preventing adhesion. It is characterized by being covered with a coating material.
According to the present invention, of the surface of the gel material, the surface opposite to the surface in contact with the operation surface of the panel is covered with a coating material for preventing adhesion, thereby eliminating stickiness during pressing operation and improving operability. Can be made.

The input assist device according to claim 6 is the PET (polyethylene) according to any one of claims 1 to 4, wherein the surface of the gel material is opposite to the surface in contact with the operation surface of the panel. (Terephthalate), polyester, polycarbonate, and acrylic sheet material is provided.
According to the present invention, the slidability on the input assist device can be improved, and the operator can comfortably perform the drag operation.

The input auxiliary device according to claim 7 is the gel material according to any one of claims 1 to 4, wherein the gel material is provided on a surface of the gel material opposite to a surface in contact with the operation surface of the panel. It is characterized in that another gel material harder than that is provided.
According to the present invention, the slidability on the input assist device can be improved, and the operator can comfortably perform the drag operation.

The input assist device according to claim 8 is characterized in that, in claim 6, the visible light transmittance of the sheet material is 80% or more.
According to the present invention, when the input device is a touch panel type input device having a display, the operator can clearly see the display through the sheet material, while viewing the contents displayed on the display. The operation can be performed.

The input assist device according to claim 9 is characterized in that, in claim 7, the visible light transmittance of the another gel material is 80% or more.
According to the present invention, when the input device is a touch panel type input device having a display, the operator can clearly see the display through another gel material, and the content displayed on the display is displayed. You can operate while watching.

The input assist device according to claim 10 is characterized in that, in any one of claims 1 to 4, the gel material has a thickness of 0.1 mm or more and 3.0 mm or less.
The thicker the gel material, the more the amount of sinking is likely to cause a pressing sensation, while the thickness increases and the sensitivity of the input device also decreases, but according to the present invention, the portability when carrying the input device is increased. In consideration of the sensitivity of the input device, the gel material can have an optimum thickness.

The input assist device according to claim 11 is characterized in that, in claim 6 or 8, the thickness of the sheet material is 0.025 mm or more and 0.3 mm or less.
The thinner the sheet material, the greater the amount of sinking and the more likely it is to press, while the durability against external stress is reduced.According to the present invention, the sheet material is considered in consideration of the usage conditions of the input device. The optimum thickness can be obtained.

The input auxiliary device according to claim 12 is the input auxiliary device according to claim 7 or 9, wherein the second gel material is a urethane or acrylic resin having a Shore A hardness of 30 degrees or more and 100 degrees or less, and the thickness is It is 0.025 mm or more and 0.3 mm or less.
The thinner the other gel material and the lower the hardness, the greater the amount of sinking and the more likely it is to press, while the durability against external stress will be reduced. Thus, another gel material can be set to an optimum thickness and hardness.

The input assisting device according to claim 13 is for preventing scratches on the surface of the surface of the sheet material opposite to the surface in contact with the gel material in any one of claims 6, 8 or 11. It is characterized in that at least one of a coating process for preventing light reflection and a coating process for preventing light reflection are performed.
ADVANTAGE OF THE INVENTION According to this invention, the abrasion resistance of an input auxiliary device can be improved, or reflection of light can be suppressed.

The input assist device according to claim 14 is the flaw prevention device according to any one of claims 7, 9 and 12, wherein the surface of the other gel material is opposite to the surface in contact with the gel material. It is characterized in that at least one of a coating process for preventing light reflection and a coating process for preventing light reflection is performed.
ADVANTAGE OF THE INVENTION According to this invention, the abrasion resistance of an input auxiliary device can be improved, or reflection of light can be suppressed.

The input assist device according to claim 15 is the input assist device according to claim 13 or 14, wherein the coating process for preventing scratches is at least one of a hard coating process and a scratch coating process, and the coating for preventing light reflection. The treatment is characterized in that it is at least one of an AR (anti-reflection) coating treatment and an AG (anti-glare) coating treatment.
According to the present invention, wear resistance can be improved and light reflection can be suppressed by performing a suitable coating treatment.

The input assist device according to claim 16 of the present invention is an input assist device that improves the operational feeling of an apparatus provided with an input device having a panel on which a pressing operation for data input is performed, It is provided in the surface on the opposite side to the surface in which the said panel is provided among the surfaces of the said apparatus, The protrusion formed with the gel raw material which has a softness | flexibility is included.
According to the present invention, when the operator is holding the device and the finger is in contact with the protrusion, when the operator performs a pressing operation on the panel provided on the device, the protrusion is Since it is deformed, it is possible to give the operator a feeling of sinking with a simple structure without consuming electric power.

The input assist device according to claim 17 is characterized in that, in claim 16, the gel material is a urethane or acrylic resin having an Asker C hardness of 15 degrees or less.
According to the present invention, it is possible to improve the feeling of sinking during a pressing operation.
The input assist device according to claim 18 is the input assist device according to claim 16 or 17, wherein the thickness of the protrusion is 0.1 mm or more and 1.0 mm or less, and the size of the protrusion is 5 mm square or less. Features.
According to the present invention, it is possible to improve the feeling of sinking during a pressing operation and the portability when carrying the device, and the size of the edge of the protrusion is easy to hit the finger, thereby making it more “key top”. A feeling similar to can be given.

The input assist device according to claim 19 is the coating material according to any one of claims 16 to 18, wherein a surface of the projection opposite to the surface in contact with the device is a coating material for preventing adhesion. It is covered with.
ADVANTAGE OF THE INVENTION According to this invention, the adhesiveness at the time of an operator's finger | toe contacting with respect to the surface on the opposite side to the surface which contacts the said apparatus among the surfaces of a protrusion can be suppressed.

An input assist device according to claim 20 is the input assist device according to any one of claims 16 to 18, wherein a surface of the projection opposite to a surface in contact with the device has PET (polyethylene terephthalate) and A sheet material having a thickness of 0.025 mm or more and 0.3 mm or less formed of any one of polyester, polycarbonate, and acrylic is provided.
According to the present invention, it is possible to improve the feeling as if the keyboard was pressed by stiffening the surface on the opposite side of the surface of the protrusion from the surface in contact with the device, more like a “key top”. It can give a feeling.

The input assist device according to claim 21 is the input assist device according to any one of claims 16 to 18, wherein a surface of the projection opposite to a surface in contact with the device is harder than the projection. Another gel material is provided.
According to the present invention, it is possible to improve the feeling as if the keyboard was pressed by stiffening the surface on the opposite side of the surface of the protrusion from the surface in contact with the device, more like a “key top”. It can give a feeling.

The input auxiliary device according to claim 22 is the input auxiliary device according to claim 21, wherein the another gel material is a urethane or acrylic resin having an Asker C hardness of 15 degrees or more and 100 degrees or less, and has a thickness of 0.025 mm. The above is 0.3 mm or less.
ADVANTAGE OF THE INVENTION According to this invention, the portability at the time of carrying the feeling which sinks at the time of pressing operation, and an apparatus can be improved.

A portable device according to a twenty-third aspect includes the input auxiliary device according to any one of the first to fifteenth aspects and the input auxiliary device according to any one of the sixteenth to twenty-second aspects. It is characterized by providing.
According to the present invention, in a portable device provided with an input device having a panel on which a pressing operation for data input is performed, an operator can taste the feeling of sinking during the pressing operation of the panel and can input data comfortably. It can be performed.

  According to the present invention, the input assist device is provided on the operation surface of the panel and includes a flexible gel material. Therefore, when the operator presses the panel with a simple structure without consuming power. A feeling of sinking can be given to the operator.

It is a figure which shows the structure of the input auxiliary device which concerns on 1st Example of this invention. It is a figure which shows the structure of the input auxiliary device which concerns on 2nd Example of this invention. It is a figure which shows the structure of the input assistance apparatus provided in the portable apparatus which concerns on 3rd Example of this invention. It is a figure which shows the 1st variation of the input assistance apparatus which concerns on the 3rd Example of this invention. It is a figure which shows the 2nd variation of the input assistance apparatus which concerns on the 3rd Example of this invention.

Embodiments of the present invention will be described below with reference to the drawings. In each drawing referred to in the following description, components equivalent to those in the other drawings are denoted by the same reference numerals.
(First embodiment)
First, the first embodiment will be described.
FIG. 1 is a diagram illustrating a configuration of an input assisting device provided on a touch panel 5 on which a pressing operation for data input is performed. As shown in the figure, the input assist device has a flexible gel material 3 provided on the operation surface of the touch panel 5 and a surface of the gel material 3 opposite to the operation surface of the touch panel 5. And a surface coating material 4 for preventing adhesion.

When the operator presses the operation surface of the touch panel 5 covered with the input auxiliary device including the gel material 3 and the surface coating material 4 with the operation finger 1, the flexible gel material 3 is slightly distorted. At the same time, the repulsive force is generated. As a result, it is possible to cause the operation finger 1 to feel as if a normal “keyboard” is being pressed.
The softer and thicker the gel material 3 is, the more the amount of sinking becomes and the more easily a pressing feeling (sinking feeling) is caused. However, since the sensitivity of the touch panel 5 also decreases, It is necessary to select the optimum hardness and thickness in consideration of the properties. The gel material 3 is preferably a urethane or acrylic resin having an Asker C hardness of 0 to 5 degrees, and a thickness of about 0.1 mm to 3.0 mm is suitable.

Further, by covering the surface of the gel material 3 opposite to the operation surface of the touch panel 5 with an extremely thin surface coating material 4, the operation finger can be operated without impairing the pressing feeling when pressed by the operation finger 1. 1 stickiness can be suppressed.
As the surface coating material 4, various topcoat coatings can be used in addition to “gel surface coating material of human skin” and rubber coating material manufactured by Exeal Corporation.
The touch panel 5 may be another input mechanism that performs input using a finger or a pen-like input device such as a touch pad or a tablet. Further, the input auxiliary device according to the present embodiment of the present invention can be used in combination with many conventional touch panel systems such as a resistive film type and a capacitance type.

(Second embodiment)
Next, a second embodiment of the present invention will be described. FIG. 2 is a diagram illustrating a configuration of an input assist device provided in the input device. The input device includes a display 6 for presenting a pressed position, an operation procedure, and the like as an image, and a transparent touch panel 5 provided on a display surface of the display 6. The input auxiliary device includes a flexible gel material 3 provided on the operation surface of the touch panel 5 and a surface provided on the surface of the gel material 3 opposite to the surface in contact with the operation surface of the touch panel 5. And a sheet material 7.

The surface sheet material 7 is made of PET (polyethylene terephthalate), polyester, polycarbonate, or acrylic, and a thickness of 0.025 mm to 0.3 mm is suitable. As a result, the slidability on the input auxiliary device can be improved, and the drag operation for sliding the operation finger 1 on the input auxiliary device can be performed comfortably.
In this case, the thinner the surface sheet material 7 is, the more the amount of sinking is caused and the feeling of pressing is more likely to occur. On the other hand, the durability against external stress is reduced. Can be set to an optimum thickness.

In addition, by making visible light transmittance of the top sheet material 7 and the gel material 3 as high as 80% or more, the operator can perform a direct operation while viewing an image displayed on the display 6 or the like.
Further, the surface of the surface sheet material 7 opposite to the surface in contact with the gel material 3 is subjected to hard coat treatment, scratch coat treatment, AR (anti-reflection) coat treatment, AG (anti-glare) coat treatment, etc. By performing the surface treatment (any one or any combination of plural treatments), it is possible to obtain the effect of preventing scratches and reducing reflection.

Further, instead of the top sheet material 7, another gel material harder than the gel material 3 may be used. As another gel material harder than the gel material 3, a urethane or acrylic resin having a Shore A hardness of 30 to 100 degrees is suitable, and a thickness of about 0.025 mm to 0.3 mm is suitable. . As a result, the slidability on the input auxiliary device can be improved, and the drag operation for sliding the operation finger 1 on the input auxiliary device can be performed comfortably.
In this case, the thinner the other gel material and the lower the hardness, the greater the amount of sinking and the more likely it is to press, while the durability against external stress is reduced. The gel material can have an optimum thickness and hardness.

(Third embodiment)
Next, a third embodiment of the present invention will be described.
FIG. 3 shows a configuration of the mobile device 10 held by the operator's operating finger 1 and holding finger 2. The mobile device 10 includes a mobile device body 8, a display 6 provided on one surface of the surface of the mobile device body 8, a touch panel 5 provided on the display surface of the display 6, and a surface of the mobile device body 8. Of these, the protrusion 11 provided on the surface opposite to the surface on which the display 6 and the touch panel 5 are provided, and the surface of the protrusion 11 that covers the surface opposite to the surface that contacts the mobile device body 8 are covered. And surface coating material 4.

The display 6 and the touch panel 5 constitute an input device.
The protrusion 11 is formed of a flexible gel material, and is installed at a position where the gripping finger F2 naturally touches when the operator grips the portable device 10 for input operation. .
When the operator's gripping finger 2 is in contact with the protrusion 11 and the operator presses the operation surface of the touch panel 5 with the operation finger 1, the protrusion 11 is slightly distorted and sinks due to the pressure. A repulsive force is generated.

As a result, it is possible to cause the gripping finger 2 to feel as if the normal “keyboard” is being pressed. This feeling is synchronized with the operation of pressing the operation finger 1. As a result, the operator can feel a “keyboard pressing feeling” with respect to the pressing operation with the operating finger 1.
Accordingly, a pressing feeling like a keyboard can be imparted when the touch panel 5 is pressed without providing projections that obstruct the operation and display on the surface of the portable device body 8 on which the display 6 and the touch panel 5 are provided. it can.

  In this case, the gripping finger 2 and the operation finger 1 do not necessarily have to be positioned on the pressing axis, and no matter where the touch panel 5 of the portable device 10 is pressed with the operation finger 1, The same effect can be obtained through the fixed protrusion 11. Therefore, the position of the pressing object 9 illustrated on the touch panel 5 or displayed on the display 6 immediately below the touch panel 5 can be freely changed, and the degree of freedom of operation can be increased.

The protrusion 11 has an effect of making it easy to take the same gripping shape every time the portable device 10 is gripped, and can also be used as a “cue” for preventing the drop.
Further, the projection 11 is installed at one place as shown in the present embodiment, and the display 6 of the portable device main body 8 and the like can be handled in one hand holding, both hands holding, vertical and horizontal operations, or individual differences in holding methods. You may install in the multiple places of the surface in which the touch panel 5 is provided.

In order to improve the pressing feeling and portability, the gel material forming the protrusion 11 is preferably a urethane or acrylic resin. Further, the hardness of the protrusion 11 is about 0 to 5 degrees on the Asker C scale, and the thickness is suitably about 0.1 mm to 1.0 mm.
Further, by making the size of the projection 11 to be 5 mm square or less and a round or oval shape with the same diameter, the finger can easily hit the edge of the projection, and the feeling of pressing the corner of the key is generated. be able to.

Further, by covering the surface of the projection 11 opposite to the surface in contact with the mobile device body 8 with the extremely thin surface coating material 4, the surface of the projection 11 can be made sticky without impairing the pressing feeling. Can be suppressed.
As the surface coating material 4, various topcoat coatings can be used in addition to “gel surface coating material of human skin” and rubber coating material manufactured by Exeal Corporation. A powder material such as talc powder may be applied to the surface.

The touch panel 5 may be another input mechanism that performs input using a finger or a pen-like input device such as a touch pad or a tablet. Also, a combination with an input mechanism such as a sheet-like keyboard that is difficult to obtain a pressing feeling may be used.
Furthermore, as shown in FIG. 4, the surface of the projection 11 opposite to the surface in contact with the mobile device body 8 is made of PET, polyester, polycarbonate, or acrylic, and has a thickness of 0.025 mm to 0.3 mm. By covering the surface sheet material 7 to a certain extent, it is possible to harden only the surface of the projection 11 to give a feeling more like a “key top” and to improve the “keyboard pressing feeling”.

Moreover, instead of the surface sheet material 7, as shown in FIG. 5, an Asker C hardness of 15 to 100 degrees and a thickness of 0. Another slightly hard gel material 12 of 025 mm to 0.3 mm may be installed.
Note that the input assist device is not limited to the portable device 10 and may be provided in a controller that is gripped and used, such as a portable or fixed game machine, a personal computer, a remote controller, or a portable operation panel.
Further, by combining the third embodiment with the first or second embodiment, it is possible to give a pressing feeling more effectively.

DESCRIPTION OF SYMBOLS 1 Operation finger 2 Gripping finger 3 Gel material 4 Surface coating material 5 Touch panel 6 Display 7 Surface sheet material 8 Mobile device main body 9 Press object 10 Mobile device 11 Protrusion 12 Gel material

Claims (23)

An input auxiliary device for improving the operational feeling of an input device having a panel on which a pressing operation for data input is performed,
Provided on the operating surface of the panel, it has a flexibility, when the pressing operation is performed at the panel, at the same time sinking distorted pressed portion, by the repulsive force generated in the pressed portion An input assisting device comprising a gel material that causes a pseudo-pressing sensation on an operation finger . The panel is a touch panel provided on the display surface of the display,
The input assisting device according to claim 1, wherein the gel material has transparency.   The input assisting device according to claim 1 or 2, wherein the gel material is a urethane-based or acrylic-based resin having an Asker C hardness of 5 degrees or less.   The input assisting device according to any one of claims 1 to 3, wherein the visible light transmittance of the gel material is 80% or more.   The surface on the opposite side to the surface which touches the operation surface of the said panel among the surfaces of the said gel raw material is covered with the coating material for adhesion prevention, The any one of Claim 1 to 4 characterized by the above-mentioned. The input auxiliary device described in 1. Of the surface of the gel material, on the surface opposite to the surface in contact with the operation surface of the panel,
The input auxiliary device according to any one of claims 1 to 4, wherein any one of sheet materials of PET (polyethylene terephthalate), polyester, polycarbonate, and acrylic is provided.   The surface of the said gel material WHEREIN: The surface on the opposite side to the surface which contact | connects the operation surface of the said panel is provided with another gel material harder than this gel material. The input auxiliary device according to any one of the above.   The input assisting device according to claim 6, wherein the visible light transmittance of the sheet material is 80% or more.   The auxiliary input device according to claim 7, wherein the visible light transmittance of the another gel material is 80% or more.   The input auxiliary device according to any one of claims 1 to 4, wherein the gel material has a thickness of 0.1 mm to 3.0 mm.   The input assisting device according to claim 6 or 8, wherein the thickness of the sheet material is 0.025 mm or more and 0.3 mm or less.   8. The another gel material is a urethane or acrylic resin having a Shore A hardness of 30 degrees or more and 100 degrees or less, and a thickness of 0.025 mm or more and 0.3 mm or less. Or the input auxiliary device of 9.   Of the surface of the sheet material, the surface opposite to the surface in contact with the gel material is subjected to at least one of a coating process for preventing scratches and a coating process for preventing light reflection. The input auxiliary device according to claim 6, wherein the input auxiliary device is any one of claims 6, 8, and 11.   Of the surface of the another gel material, the surface opposite to the surface in contact with the gel material is subjected to at least one of a coating process for preventing scratches and a coating process for preventing light reflection. The input auxiliary device according to any one of claims 7, 9 and 12, wherein The coating treatment for preventing scratches is at least one of a hard coating treatment and a scratch coating treatment,
15. The input assisting device according to claim 13, wherein the coating treatment for preventing light reflection is at least one of an AR (anti-reflection) coating treatment and an AG (anti-glare) coating treatment. An input auxiliary device that improves the operational feeling of an apparatus provided with an input device having a panel on which a pressing operation for data input is performed,
An input assisting device comprising a protrusion formed on a surface of the device opposite to the surface on which the panel is provided and formed of a flexible gel material.   The input auxiliary device according to claim 16, wherein the gel material is a urethane or acrylic resin having an Asker C hardness of 15 degrees or less. The protrusion has a thickness of 0.1 mm or more and 1.0 mm or less,
The input auxiliary device according to claim 16 or 17, wherein a size of the protrusion is 5 mm square or less.   The surface of the said protrusion thing and the surface on the opposite side to the surface which contact | connects the said apparatus are covered with the coating material for adhesion prevention, The any one of Claims 16-18 characterized by the above-mentioned. Input auxiliary device. Of the surface of the projection, on the surface opposite to the surface in contact with the device,
Formed of any of PET (polyethylene terephthalate), polyester, polycarbonate, and acrylic,
The input auxiliary device according to any one of claims 16 to 18, wherein a sheet material having a thickness of 0.025 mm or more and 0.3 mm or less is provided.   The surface of the projection is provided with another gel material harder than the projection on the surface opposite to the surface in contact with the device. The input auxiliary device according to item.   The another gel material is a urethane or acrylic resin having an Asker C hardness of 15 degrees or more and 100 degrees or less, and a thickness of 0.025 mm or more and 0.3 mm or less. The input auxiliary device described in 1.   A portable device comprising the input assist device according to any one of claims 1 to 15 and the input assist device according to any one of claims 16 to 22.

Images