JPH0667800A - Information input/output device, pen cap for coordinate input, and electronic equipment - Google Patents

Abstract

PURPOSE:To easily and accurately perform the positioning of a coordinate input device with simple and inexpensive structure in an information input/ output device in which transparent coordinate input devices as an input device are arranged in on a display device as an output device. CONSTITUTION:A liquid crystal module 18 is comprised by layering a liquid crystal panel 7 and a liquid crystal substrate 16 on which a driving circuit for the liquid crystal panel is packaged, and holding them integrally with a metallic frame 14. Plural projections 14c to perform the positioning of the coordinate input device 30 are formed integrally on the metallic frame 14. The device 30 can be quite easily and accurately positioned by engaging the coordinate input device 30 with the inside of the projections 14c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information input / output device in which a transparent coordinate input device as an input device is stacked on a display device as an output device, and a coordinate input used for input operation of the coordinate input device. The present invention relates to a pen cap and an electronic device including the coordinate input device.

[0002]

2. Description of the Related Art Conventionally, there is known an information input / output device in which a transparent coordinate input device is laminated on a display device such as a liquid crystal display device, and an input / output surface is integrated to input / output information. In this type of device, the characters entered in the coordinate input device,
It is used for displaying a figure or the like on a display device as if written by hand, or for pressing a region of a switch displayed on the display device to select a command.

FIG. 5 shows the appearance of this type of information input / output device. In FIG. 5, reference numerals 1 and 2 denote an upper case and a lower case of the apparatus, and an input / output unit 3 is provided on the upper surface of the upper case. The input / output unit 3 is formed by stacking transparent coordinate input devices on the display device, and coordinates can be input to the input / output unit 3 by the input pen 4. By displaying the locus of the input coordinates as it is, the input can be performed as if writing directly to the input / output unit 3.

The input / output unit 3 shown in FIG. 5 is conventionally shown in FIG.
It was configured as shown in FIG. 7 or 8. In FIG. 6, reference numeral 30 denotes, for example, a transparent analog resistance film type coordinate input device, which can detect the voltage division value of the voltage corresponding to the pressed coordinates on the input surface and output it to the terminal 3a. Further, 7 is a liquid crystal panel which is a display panel, and 6 is a spacer for preventing a Newton ring from being generated when the coordinate input device 30 and the liquid crystal panel 7 are laminated. Reference numeral 9 is a heat seal for connecting the main circuit board 10 and the liquid crystal panel 7, 11 is a CPU, and 13 is an LCD driver IC. Reference numeral 8 denotes a resin holder, which has two shelves 8a and 8b.
The liquid crystal panel 7 is attached to the shelf 8a, and the spacer 6 and the transparent coordinate input device 30 are attached to and held on the shelf 8b with double-sided tape.

FIG. 7 shows a state in which the liquid crystal panel 7, the coordinate input device 30 and the like are incorporated in the holder 8.

In the case of FIGS. 6 and 7, the liquid crystal panel 7 and the main circuit board 10 are directly connected by the heat seal 9.
In such a case, it is common to mount these at the manufacturing plant.

In such a case, however, on the other hand, while the company can perform integrated production, the equipment for mounting the liquid crystal panel must be prepared by itself, and when the number of liquid crystal dots increases and the dot pitch becomes finer, high precision is achieved. Will be difficult to implement and technically difficult, and in-house production will not be a good idea.

In such a case, it is often the case that a liquid crystal module, which is a unitized display device, is purchased and that the module is connected to the main board with about 10 terminals. FIG. 8 shows a typical structure of a conventional liquid crystal module and a mounting structure of a coordinate input device on the liquid crystal module.

In FIG. 8, reference numeral 16 is a liquid crystal substrate, which is a circuit substrate on which a drive circuit including a driver IC of the liquid crystal panel 7 is mounted. Reference numeral 14 is a metal frame for integrally holding the liquid crystal substrate 16 and the liquid crystal panel 7 by stacking them.
Here, it is formed in a rectangular shape in accordance with the shapes of the liquid crystal substrate 16 and the liquid crystal panel 7. Further, 15 is a connector rubber. The connector rubber 15 is sandwiched between the liquid crystal panel 7 and the liquid crystal substrate 16, and the plurality of claws 14a formed on the metal frame 14 are passed through the cutout portions 16a of the substrate 16 to bend and crimp the claw tips 14b. The rubber 15 is compressed to establish continuity. The other side of the liquid crystal panel 7 has a heat seal 9
Is connected to the liquid crystal substrate 16.

Such a liquid crystal substrate 16 and connector rubber 1
5, the liquid crystal panel 7, the heat seal 9, the metal frame 14, and the like are unitized to form a liquid crystal module 18. The liquid crystal module 18 can function by connecting about ten terminals 17 to a main circuit board (not shown) of the information input / output device.

Although the coordinate input device 30 is mounted on the liquid crystal module 18 via the spacer 6, the same device 30 is used.
The positioning with respect to the liquid crystal module 18 is performed according to the outer shape of the liquid crystal module 18. The most common fixing method is sticking with double-sided tape.

On the other hand, FIG. 14 shows the appearance of a conventional example of a small electronic device equipped with a coordinate input device. In FIG. 14, 101 and 102 are upper and lower cases of the electronic device, 103 is an input / output unit, 104 is an input pen dedicated to coordinate input, and 105 is a keyboard. Input / output unit 103
Is configured by stacking transparent coordinate input devices of, for example, a resistance film type on a display device such as a liquid crystal display device.
With this configuration, the input pen (top surface) of the coordinate input device
Since the coordinates input by pressing with 04 can be displayed right below the pressing point by the display device and the locus of the input pen 104 tracing the input surface can be displayed, the user can feel as if he / she wrote directly on the input surface. It is possible to perform so-called handwritten pen input.

In the case of the resistance film type coordinate input device, the coordinates of the pressing point are detected by the voltage division value of the voltage corresponding to the point on the input surface pressed by the pen. Therefore, basically, a general writing tool such as a mechanical pencil or a pencil can also be used as a pressing means for input. However, with general writing instruments, the tip may be sharp or slip may be bad, causing scratches on the input surface.Therefore, a dedicated input pen is generally included as an accessory for this type of device. is there. In order to prevent the input surface from being scratched, the input pen 104 is formed of POM or the like having a small friction coefficient among plastic materials, and the pen tip 104a is gloss-finished to eliminate steps such as parting lines.

On the other hand, a pen housing hole 106 is formed in the main body of the electronic device including the upper case 101 and the lower case 102, and the input pen 104 is inserted into the hole 106 by an arrow D,
It can be inserted and removed in the D'direction. When the entire input pen 104 is inserted into the hole 106, an engaging member (not shown) in the electronic device main body is engaged with a groove 104b formed on the outer periphery of the rear end of the input pen 104, and the input pen 104
Is locked and the eject button 1 on the upper case 101
When the user presses 07, the engagement is released, and the input pen 104 is pushed out by a compression spring (not shown) in the electronic device body.

FIG. 15 shows the appearance of another conventional example. In this case, there is no keyboard, only the input / output unit 103 for pen input is provided, and the input method is based on character recognition. The coordinate input device that constitutes the input / output unit 103 is of a resistance film type, for example, and a dedicated input pen 104 is required as in the conventional example of FIG. In this case, the recess 10 formed in the upper case 101 of the electronic device is also used.
The input pen 104 is stored in 1a.

[0016]

In the structure of the information input / output device shown in FIG. 8, the coordinate input device 30 is positioned according to the outer shape of the liquid crystal module 18, but it is not abutted against anything. Input device 3
The positioning of 0 varies. Further, alignment of the coordinates of the coordinate input device 30 and the liquid crystal module 18 corrects an error in the process after mounting the coordinate input device 30, but if the assembly error is large, it may not be possible to correct it. .

Further, when the coordinate input device 30 and the liquid crystal module 18 have substantially the same outer shape as in the case shown in FIG. 8, it is possible to align the outer peripheries or align the two sides of the outer contours. When the outer shape and size are significantly different, it is difficult to set a standard for positioning, and there is a drawback that a jig or tool for positioning and another component are required.

On the other hand, in both of the conventional examples shown in FIGS. 14 and 15, the input pen cannot be made too small considering that a human hand holds it. Further, since it is necessary to provide the pen housing portion corresponding to the size of the input pen 104 in the electronic device main body, there is a problem that the electronic device main body becomes large. Further, in the case of FIG. 14, since the eject mechanism for ejecting the input pen from the electronic device main body is provided,
The cost will increase.

Further, since the input pen is dedicated, if the input pen is removed, no other one can substitute for it, and it becomes necessary to purchase the input pen itself, resulting in extra expense.

Further, in the case of a dedicated input pen, the texture and diameter of the input pen do not suit the user's preference, which may hinder the operability of pen input.

The present invention has been made in view of the above circumstances, and an object of the present invention is a simple and inexpensive information input / output device in which transparent coordinate input devices are stacked and arranged on the above-mentioned display device. The structure is to enable the coordinate input device to be easily and accurately positioned with respect to the display device. Another object of the present invention is to make it possible to reduce the size of an electronic device equipped with a coordinate input device, improve the operability of coordinate input, and improve economy.

[0022]

In order to solve the above problems, according to the present invention, a display panel and a circuit board on which a drive circuit for the display panel is mounted are laminated and integrally held by a frame member. In the information input / output device in which the transparent coordinate input device is laminated and fixed on the display device formed as described above, a structure in which a positioning member for positioning the coordinate input device is integrally formed on the frame member is adopted.

Further, according to the present invention, the coordinate input pen cap used for the input operation by the pressing of the coordinate input device for inputting the coordinates of the pressed point by pressing an arbitrary point on the input surface. Thus, there is provided a coordinate input pen cap which has an elastically deformable portion and is detachably attached to an end portion of a writing instrument having a different diameter by elastically deforming the elastically deformable portion.

Further, according to the present invention, in the electronic device provided with the coordinate input device, a structure is provided in which the electronic device main body is provided with a storage portion for storing the coordinate input pen cap.

[0025]

According to the structure of the information input / output device of the present invention,
The coordinate input device can be easily and accurately positioned by the positioning member formed on the frame member, and there is no need to use a jig for positioning or a separate component.

Further, by using the pen cap of the present invention, the user can carry out the coordinate input operation by mounting the pen cap on the favorite writing instrument. Further, the pen cap of the present invention is remarkably smaller than the conventional input pen, and the storage portion for the pen cap is also small, so that the electronic device provided with the storage portion can be downsized.

[0027]

Embodiments of the present invention will be described below with reference to the drawings. In addition, in the drawings of the first to third embodiments, FIG.
8A and 8B, the same or corresponding portions as those in FIG. 8 are denoted by the same reference numerals, and the description of the common portions will be omitted.

First Embodiment FIGS. 1 and 2 illustrate the positioning and mounting structure of a coordinate input device on a liquid crystal module which constitutes an input / output unit of an information input / output device according to a first embodiment of the present invention. Is.

The structure shown in FIGS. 1 and 2 is almost the same as the conventional example of FIG. 8, but the structure of the metal frame 14 for laminating and integrally holding the liquid crystal panel 7 and the liquid crystal substrate 16 is different. ing.

That is, the metal frame 14 has a spacer 6 on it.
A protrusion 14c for positioning the coordinate input device 30 which is stacked and mounted via is integrally formed. Protrusion 1
4c is formed by cutting and raising two portions at appropriate intervals on the outer edges of each of the four sides of the upper surface of the rectangular metal frame 14. Further, the inner dimensions of the protrusions 14c facing each other are slightly larger than the corresponding outer dimensions of the coordinate input device 30 and the spacer 6.

A liquid crystal module 18 is constructed by assembling the liquid crystal panel 7, the metal frame 14, the liquid crystal substrate 16, etc. in the same manner as in the conventional example shown in FIG. When the coordinate input device 30 is mounted on the liquid crystal module 18 via the spacer 6, the assembling operator simply fits the spacer 6 and the coordinate input device 30 inside the plurality of protrusions 14c as shown by the arrows in FIG. And it can be accurately positioned on the metal frame 14. The spacer 6 and the coordinate input device 30 can be easily fixed by, for example, attaching them with a double-sided tape. FIG. 2 shows a state in which the spacer 6 and the coordinate input device 30 are thus mounted on the liquid crystal module 18.

According to this embodiment as described above, the metal frame 14
Due to the extremely simple and inexpensive structure of forming the projection 14c on the ridge, any worker can easily and accurately perform the positioning of the coordinate input device 30 without using a jig or a separate component for positioning. You can

Second Embodiment FIG. 3 shows a second embodiment of the present invention. In the present embodiment, two adjacent two of the four sides of the upper surface of the rectangular metal frame 14 are adjacent to each other.
The above-mentioned positioning projections 14c are formed by cutting and raising at two positions on each outer edge of each side, and a leaf spring-like pressing piece 14d is provided on the outer edge of the remaining two sides facing the two sides. It is formed integrally with the metal frame 14. Pressing piece 14
d extends substantially parallel to the outer edge of the metal frame 14, and the tip portion 14e
Is curved in a semi-circular shape.

Based on such a structure, the coordinate input device 3
0 is mounted on the liquid crystal module 18, the pressing piece 14
When d is pushed in the direction of arrow A to bend, the coordinate input device 30 is fitted inside the protrusion 14c, and the pressing piece 14d is released, the pressing piece 14d returns to the direction of arrow B by elasticity, and the tip portion 14
e presses the side surface of the coordinate input device 30 and presses the device 30 against the protrusion 14c. In this way, the coordinate input device 30 can be positioned and fixed.

According to the present embodiment as described above, the coordinate input device 30 is pressed against the projection 14c by the elastic force of the pressing piece 14d and positioned, so that the positioning can be performed more accurately than in the case of the first embodiment.

Third Embodiment In the structure as described above, the liquid crystal panel 7 and the liquid crystal substrate 16 are provided.
When the connector rubber 15 shown in FIG. 8 is used for connection, the metal frame 14 compresses the connector rubber 15 between the liquid crystal panel 7 and the liquid crystal substrate 16 to establish conduction. However, the gold frame 14
If the strength is insufficient, the metal frame 14 is deformed and the connector rubber 15 cannot be compressed sufficiently, resulting in unstable conduction. This phenomenon becomes more remarkable as the contact area increases. FIG. 4 shows a third embodiment of the present invention in consideration of this point.

In this embodiment, as shown in FIG. 4, linear ribs 14g are formed along the outer edges of each of the four sides of the upper surface of the rectangular metal frame 14. The rib 14g is formed by squeezing the metal frame 14, and the opposing rib 14g
The inner dimensions of the two correspond to the outer dimensions of the coordinate input device 30.

Based on such a structure, the coordinate input device 3
It is possible to easily and accurately position 0 together with the spacer 6 inside the rib 14g, and the rib 14g can reinforce the strength of the metal frame 14.

It should be noted that, in the structure of each of the above embodiments, a module of another display device may be used instead of the liquid crystal module. Further, the coordinate input device is not limited to the analog resistance film type, and needless to say, may be another type such as an ultrasonic type.

Fourth Embodiment Next, FIGS. 9 to 11 show a fourth embodiment of the present invention.

In FIG. 9, 108 is a mechanical pencil of a writing instrument. Reference numeral 109 is a pen cap for inputting coordinates according to the present invention, which is used for inputting coordinates in an electronic device equipped with the coordinate input device.

The pen cap 109 is formed of a resin material having a small friction coefficient, such as POM, into a substantially hollow conical shape in order to prevent the input surface of the coordinate input device from being damaged, and the pen tip 109c has a gloss finish. There is no step like the parting line. A plurality of elastic pieces 109b are formed on the rear portion of the pen cap 109 via slits 109a, and a convex portion 109d is formed on the inner side of the rear end portion of the elastic piece 109b as shown in FIG.

Under such a structure, the pen cap 109 is attached to the mechanical pencil 10 as shown by an arrow A in FIG.
It can be attached as shown in FIG. Mechanical pencil 1 for this installation
The convex portion 109d is pressed by the inclined surface of the conical tip portion of 08, and the elastic piece 109b is bent to the outside.
The convex portion 109d is generated by the elastic force of b returning to its original shape.
Is pressed against the outer peripheral surface of the mechanical pencil 108, so that the pen cap 109 is fixed to the mechanical pencil 108.

Further, by bending the elastic piece 109b of the pen cap 109 attached to the mechanical pencil 108 outward with a finger or the like, the pen cap 109 can be easily removed from the mechanical pencil 108.

The pen cap 109 is an elastic piece 109b.
Not only can it be attached to a mechanical pencil that has a slightly different diameter due to elastic deformation, but it can also be attached to other writing instruments such as pencils.

As described above, the pen cap 109 can be attached to the mechanical pencil 108 and used for coordinate input operation. This is shown in FIG.

In FIG. 11, reference numeral 120 denotes the electronic device of this embodiment, and on the upper surface of the main body composed of the upper case 101 and the lower case 102, the transparent coordinate input device is laminated on the display device as described above. The input / output unit 103 configured as described above is provided, and a keyboard 105 is provided as another input unit.
Is also provided.

By inputting and pressing an arbitrary point on the input surface (upper surface) of the input / output unit 103 with the mechanical pencil 108 equipped with the pen cap 109, coordinate input can be performed as described above, and handwritten pen input. Can be done.

The main body of the electronic device 120 is provided with a pen cap storage (recess) 110, and the pen cap 109 can be stored in the storage 110 when the pen cap 109 is not used. The pen cap storage unit 110 is provided with a locking member or a lid (not shown) that locks the stored pen cap 109 so as not to fall off.

According to the present embodiment as described above, the pen cap 109 can be attached to a mechanical pencil having a different diameter due to the elastic deformation of the elastic piece 109b as described above, and can also be attached to other writing instruments such as a pencil. The user can input coordinates using a writing instrument that is easy to use, such as a desired texture and diameter, and the operability of inputting coordinates can be improved.

Further, the electronic device of the present embodiment need only be provided with a pen cap storage part which is significantly smaller than the input pen storage part of the conventional example, and therefore the electronic device can be made considerably smaller than the conventional example.

Furthermore, the pen cap 109 can be formed significantly cheaper than the conventional input pen and is economical.

It should be noted that it may be necessary to prepare a plurality of types of pen caps 109 in order to cope with a considerable difference in the thickness of the writing instruments used for pen input due to the diversification of the writing instruments, but the elastic piece 109b is necessary. The width of a certain thickness can be accommodated by the bending of the pen cap 1
The number of kinds of 09 is small.

Fifth Embodiment FIG. 12 illustrates another embodiment of the pen cap. In FIG. 12, 111 is a pen cap body, 11
2 is a pen tip, and the pen tip 112 is the pen cap body 1.
It is a separate body from 11.

The pen cap body 111 has a hole 1 whose diameter is reduced in three steps from the rear end toward the sharp tip.
11a is formed so as to penetrate therethrough. The pen tip 112 from the small diameter portion (tip portion) to the medium diameter portion (intermediate portion) of the hole 111a.
Has been inserted and is held via a pen tip holder 114 fixed to the rear portion of the middle diameter portion of the hole 111a.
It is held so as to be slidable in a direction projecting from the pen cap body 111 and a direction retracting into the pen cap body 111 along the axial direction. Then, the pen tip 112 is biased in a direction projecting from the pen cap body 111 by a spring 113 mounted between a stopper 112 a formed in an intermediate portion of the pen tip 112 and a pen tip holder 114, and the stopper 112 a is The hole 111a comes into contact with the wall 111b at the boundary between the middle diameter portion and the small diameter portion, and the movement limit of the pen tip 112 in the protruding direction is restricted. The limit of movement of the pen tip 112 in the retracted direction is restricted by the pen tip holder 114.

The pen cap is detachably attached to the writing instrument by elastically press-fitting and fitting the end of a writing instrument such as a pencil into the large diameter portion of the hole 111a.

Next, the operation of the pen cap of this embodiment will be described. FIG. 12A shows a state where no external force is applied to the pen tip 112. In this case, the pen tip 11
2 is pressed by the biasing force of the spring 113 to a position where the stopper 112a comes into contact with the wall 111b.
The tip end of 2 projects from the pen cap body 111 by a predetermined amount.

Further, FIG. 12B shows a state in which the pen tip 112 is retracted by an external force B larger than the biasing force of the spring 13 in the initial state. When the external force B is released, the state of (a) is restored by the urging force of the spring 113.

With such an action, it is possible to prevent the input surface of the coordinate input device from being destroyed. That is, the input surface of the coordinate input device is often made of glass and is weak against impact load.
Therefore, when the coordinate input device is pressed with a strong load using the pen cap having the fixed pen tip, the input surface may be damaged. On the other hand, FIG.
If the urging force in the initial state of 2 (a) is set to be smaller than the load of breaking the input surface of the coordinate input device, the pen will not be broken before the input surface is broken when the pen input is pressed using this pen cap. The tip 112 can be prevented from being broken by being retracted in the direction B in FIG. 12B, that is, in the direction opposite to the pressing direction.

Sixth Embodiment FIG. 13 shows a further different embodiment of the pen cap. The pen cap 115 of this embodiment is formed of a rubber material into a cylindrical shape having a conical tip and an open rear end, and is elastically deformable. Therefore, a writing instrument such as a mechanical pencil is provided in the inner hollow portion 115b. The tip part of the is press-fitted and detachably attached to the writing instrument.

A portion near the conical base of the tip of the pen cap 115 is thinly formed as a click-shaped portion 115a for giving a click feeling similar to the key rubber of a calculator.

According to such a structure, the pen cap 1
If the external force C is not applied, the initial shape of FIG. 13A is maintained. However, as shown in FIG. 13B, when the external force C exceeds a certain level, the click-shaped portion 115a is bent and the distal end portion is bent. Retracts. By setting the magnitude of the external force C to be smaller than the load of breaking the input surface of the coordinate input device, it is possible to prevent the breaking of the input surface due to the pressing of the pen input as in the fifth embodiment.

[0063]

As described above, according to the present invention, the display panel and the circuit board on which the drive circuit of the display panel is mounted are laminated and are integrally held by the frame member to be transparent on the display device. In an information input / output device in which various coordinate input devices are stacked and fixed, a structure in which a positioning member for positioning the coordinate input device is integrally formed on the frame member is adopted, so that a structure that can be realized extremely easily and inexpensively As a result, the coordinate input device can be easily and accurately positioned, and there is no need to use a positioning jig or a separate component.

According to the present invention, the coordinate input pen cap used for the input operation by the pressing of the coordinate input device for inputting the coordinates of the pressed point by pressing an arbitrary point on the input surface. A pen for coordinate input is provided which has an elastically deformable portion and is detachably attached to an end portion of a writing instrument having a different diameter by elastically deforming the elastically deformable portion. If used,
The user can attach a pen cap to his or her favorite writing instrument to perform coordinate input operation, and improve the operability of coordinate input. Further, the pen cap of the present invention can be formed at a lower cost than the conventional input pen and is economical.

Further, according to the present invention, in the electronic device equipped with the coordinate input device, a structure is provided in which a housing portion for housing the coordinate input pen cap is provided in the electronic device main body. Is remarkably smaller than the conventional input pen, and the storage portion thereof is also small, so that an excellent effect such as downsizing of an electronic device can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view illustrating a positioning and mounting structure of a coordinate input device on a liquid crystal module that constitutes an input / output unit of an information input / output device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the coordinate input device of the embodiment is mounted.

FIG. 3 is a perspective view showing a positioning and mounting structure of a coordinate input device according to a second embodiment.

FIG. 4 is a perspective view showing a positioning and mounting structure of a coordinate input device according to a third embodiment.

FIG. 5 is a perspective view showing an external appearance of the entire information input / output device.

FIG. 6 is an exploded perspective view illustrating a positioning and mounting structure of a conventional coordinate input device.

FIG. 7 is a perspective view showing a state in which the coordinate input device of the conventional example is mounted.

FIG. 8 is an exploded perspective view showing another conventional example.

FIG. 9 is a perspective view of a pen cap and a mechanical pencil according to a fourth embodiment.

FIG. 10 is a cross-sectional view showing a state where the pen cap is attached to a mechanical pencil.

FIG. 11 is a perspective view showing a state in which pen input is performed on an electronic device by a mechanical pencil equipped with the pen cap.

FIG. 12 is a sectional view for explaining the structure and action of the pen cap of the fifth embodiment.

FIG. 13 is a sectional view for explaining the structure and action of the pen cap of the sixth embodiment.

FIG. 14 is a perspective view of a conventional electronic device and an input pen.

FIG. 15 is a perspective view showing another conventional example.

[Explanation of symbols]

 6 spacer 7 liquid crystal panel 14 metal frame 14c positioning protrusion 14d pressing piece 14g positioning and reinforcing rib 16 liquid crystal substrate 18 liquid crystal module 30 coordinate input device 101 upper case 102 lower case 103 input / output section 105 keyboard 108 mechanical pencil 109, 115 Pen Cap 110 Pen Cap Storage Section 111 Pen Cap Main Body 112 Pen Tip 113 Spring 114 Pen Tip Holder

Claims (6)

[Claims] 1. Information for stacking and fixing a transparent coordinate input device on a display device in which a display panel and a circuit board on which a drive circuit for the display panel is mounted are stacked and integrally held by a frame member. In the input / output device, a positioning member for positioning the coordinate input device is integrally formed on the frame member. 2. The information input / output device according to claim 1, wherein a pressing member that elastically presses the coordinate input device against the positioning member is integrally formed with the frame member. 3. The information input / output device according to claim 1, wherein the positioning member is formed to also serve as a reinforcing member that reinforces the strength of the frame member. 4. A coordinate input pen cap used for an input operation by the pressing of a coordinate input device for inputting the coordinates of the pressed point by pressing an arbitrary point on the input surface, wherein the elastic deformable portion is provided. A coordinate input pen cap, which is detachably attached to an end portion of a writing instrument having a different diameter by elastic deformation of the elastically deformable portion. 5. The coordinate input pen cap according to claim 4, wherein the tip portion is configured to be elastically displaceable in a retracting direction. 6. An electronic device equipped with a coordinate input device for inputting coordinates of a pressed point by pressing an arbitrary point on an input surface, wherein the coordinate input device is detachably attached to an end of a writing instrument. An electronic device, characterized in that a housing portion for housing a coordinate input pen cap used for an input operation by pressing is provided in the electronic device body.