JPH02208713A - Information input/output device - Google Patents

Abstract

PURPOSE:To hold a display device and a coordinate input device by a simple and inexpensive structure by energizing and supporting the display device and the coordinate input device from the side by an elastic member formed integrally in a holder means. CONSTITUTION:A transparent tablet 30 receives the energizing force of x2, y2 by spring parts 8g, 8h, driven against side walls 8i, 8j, respectively on a stepped part 8b, and positioned. In such a manner, by leaf spring parts 8c, 8d or 8g, 8h formed integrally with a holder 8, an LCD panel and the transparent tablet 30 can be mounted easily and surely without using a separate member such as a both-side tape, a fastener, etc., as before. Especially, being different from using a both-side tape as before, the laminated LCD panel 7 or transparent tablet 30 can be removed easily by pressing and deforming the plate springs 8c, 8d or 8g, 8h.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to an information input/output device, particularly an information input/output device in which a transparent coordinate input device is disposed on a display device and information is input/output using the display device and the coordinate input device. This relates to output devices.

[Prior Art] Conventionally, there have been devices in which a coordinate input tablet using a transparent electrode method or an ultrasonic method is placed on a display such as a liquid crystal display, and information is input and output using a common input/output surface. Are known.

With this type of device, characters, figures, etc. entered into a coordinate input tablet can be handwritten and displayed on the display, or commands can be selected by pressing the key switch area displayed on the display. used to carry out.

FIG. 2 shows the basic configuration of this type of input/output device. In FIG. 2, reference numerals 1.2 denote an upper case and a lower case of the device, which are made of a material such as plastic, and an input/output surface 3 is provided on the upper surface of the upper case 1. Input/output surface 3
As mentioned above, a transparent coordinate input tablet is placed on the display, and coordinates can be input to the coordinate input tablet using the input ben 4. At a predetermined position on the input/output surface, an area for a touch key switch is provided as indicated by reference numeral 3b. This area is displayed using a display on the input/output surface 3, or fixedly displayed by a method such as printing.

The input/output surface 3 shown in FIG. 2 was constructed as shown in FIG. 9 or 10.

In FIG. 9, reference numerals 30 and 7 indicate a transparent tablet and an LCD panel that constitute the input/output surface 3, and are arranged in a stacked manner as shown in the figure.

The transparent tablet 30 and the LCD panel 7 are positioned and fixed by a holder 8 made of plastic or the like. The mounting of the tablet 30 and the LCD panel 7 into the holder 8 will be described in the assembly order. First, the LCD panel 7 is adhered and fixed to the inside of the stepped portion 8b provided in the recess inside the holder 8 using the double-sided tape 5. .

Next, a spacer 6 for preventing Newton's rings of the liquid crystal is adhered onto the LCD panel 7 using double-sided tape 5. This spacer 6 is adhered to the upper part of the stepped portion 8b of the holder 8. Further, a transparent tablet 30 (configured using a predetermined input method such as a resistive film method or an ultrasonic method) is fixed onto the spacer 6 with double-sided tape 5 .

The transparent tablet 30 is electrically connected to a circuit board 10 mounted on the lower part of the holder 8 by a lead wire 3a made of a flat cable or the like, while the LCD panel 7
The terminals provided on the two sides of are heat seal connectors 9.9
It is electrically connected to the circuit board 10 via. Circuit members such as a microprocessor are mounted on the circuit board 10, as shown by reference numerals 11.13.

On the other hand, in the structure of FIG. 10, the laminated structure is the same as that of FIG. 9, but the tablet 30 and LCD panel 7 or spacer 6 are not double-sided tapes, but L-shaped fasteners 12.
A notch portion 12a is formed in the portion fixed by 12.

LCD banelf, spacer 6 and transparent tablet 30
are sequentially stacked inside the recess 8a or step 8b inside the holder 8 in the same order as described above, and are positioned by fixing the stopper 12 to the circuit board 10 from above. In that case, the tongue piece 12b at the bottom of the stopper 12 passes through the slit 10a formed in the circuit board 10, and by twisting the tongue piece 12b at the position of the notch 12a of the stopper 12 on the back side of the circuit board 10, the board 10 can be removed. fixed on top.

[Problem to be solved by the invention] However, in the conventional structure shown in Fig. 349, the transparent tablet 3
0. Not only is a separate member called double-sided tape required to fix the LCD panel 7 or the spacer 6, but also it is extremely difficult to remove it to correct any misalignment during assembly, which reduces cost and work efficiency. There is a problem with this. In addition, in order to replace laminated parts during maintenance, it is necessary to peel off each member adhered with the double-sided tape 5, and in this case, the adhesive strength of the double-sided tape 5 is particularly weak compared to the strength of an LCD panel, etc. There was also the problem that it was strong and could potentially damage the laminated member.

On the other hand, in the conventional structure shown in FIG. 10, a separate component called a stopper 12 is similarly required, and in this case, the transparent tablets 30 are stacked together by the elastic force of the stopper 12 made of metal or the like.
Alternatively, the LCD panel is pressed from above with a fairly strong force. Therefore, if a strong vibration or impact load is applied to the tablet 30, there is a problem that the tablet and other parts may break in the contact area between the stopper 12 and the tablet 30. The object of the present invention is to solve these problems.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an information input system in which a transparent coordinate input device is disposed on a display device, and information is input and output using the display device and the coordinate input device. In the output device, a holder means for holding the display device and the coordinate input device within the device is provided, and an elastic member integrally formed with the holder means biases and supports the display device and the coordinate input device from the side. It was adopted.

[Function] According to the above configuration, the display device and the coordinate input device can be supported from the sides by the elastic means integrally formed with the holder means.

[Example] Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

1 and 3 to 6 show one embodiment of the present invention.

The holder 8 shown in FIG. 1 is used to position and fix the transparent tablet and LCD panel that constitute the input/output surface 3 in the information input/output device having the basic configuration as shown in FIG. As shown in FIG.
is frame-shaped and has a recess 8a inside. Furthermore, a square hole 8J is formed at the bottom for a circuit member mounted on a circuit board (not shown). Two sides of the frame-shaped portion of the holder 8 are cut out and open as shown by symbols 8k and 8, and these portions serve as square holes for heat seal connectors 9 of the LCD panel 7, which will be described later. ing.

A stepped portion 8b is provided at the periphery of the recessed portion 8a inside the holder 8. The upright side walls 8i, 8J, 8e, 8f, 8s, and 8t on the upper and lower sides of the stepped portion 8b are formed to be approximately slightly larger than the outer dimensions of the transparent tablet 30 and the LCD panel 7, respectively. The LCD panel 7 is arranged below the step 8b, and the transparent tablet 30 or spacer 6 is arranged above the step 8b. A boss 8m for engaging with a spacer 6, which will be described later, is formed on the upper surface of the stepped portion 8b.

Further, a leaf spring portion 8 is provided on a part of the side wall 8g or 8t.
g58c is formed. These leaf spring parts 8g, 8
As shown in the figure, c is formed on a part of the side walls 8J and 8f by molding or the like. The leaf spring portions 8g and 8c have protrusions at their tips, and these protrusions bias the transparent tablet 30 and LCD panel 7 disposed inside the side walls 8j and 8f in the plane direction thereof.

Although the lower leaf spring portion 8d is not shown in FIG. 1, leaf spring portions 8h and 8d are similarly configured on the long sides of the holder 8.
is formed. Leaf spring part 13d.

The 0 step portion 8b shown at the position 8h in FIG. 3 is similarly formed at the lower long side portion in FIG.

In order to mount the transparent tablet 30 and LCD panel 7 in the above configuration, first, as shown in FIG.
Fit inside of. At this time, the leaf spring parts 8c and 8d are spread outward, and after dropping the LCD panel 7, the leaf spring part 8c is opened.

Release the finger that was holding down 8d. As a result, the leaf spring portion 8c
, 8d bias the LCD panel 7 in the direction indicated by the symbol xi%y1. The heat seal connector 9 of the LCD panel 7 is led out from the notch 8 and 8'.

In this state, the LCD panel 7 has a leaf spring portion 8c.

8d, and is brought into contact with the left and upper side walls 8e, 8f in FIG. The position is fixed.

Next, as shown in FIG. 6, a spacer 6 having a fixed display 6b for forming a touch key on one of the inner sides of the mouth shape is placed on the upper surface of the LCD panel 7. At this time, the round hole 6a provided at a predetermined position in the corner of the spacer 6 is inserted into the holder 8.
It is positioned so as to be penetrated by a boss 8m provided on the stepped portion 8b.

Subsequently, as shown in FIG. 5, the transparent tablet 30 is positioned above the stepped portion 8b. The transparent tablet 30 has a larger area than the LCD panel 7, as shown by the broken line indicating the outer dimensions of the LCD panel. When mounting the transparent tablet 30, spread the leaf spring parts 8g and 18h outward as in the case of the LCD panel, drop the transparent tablet 30 inside the recess 8a, and press the fingers pressing the leaf spring parts 8g and 8h. Let go.

As a result, the transparent tablet 30 receives the biasing forces x2 and y2 by the spring parts 8g and 8h, and the side wall ax on the step part 8b
, a, and 3, respectively, and are positioned. The depth of the recess 8a shown in FIG. 6 is greater than the thickness of the LCD panel 7 below the step 8b, and the depth of the recess 8a shown in FIG.
The upper side of b is sufficiently deeper than the sum of the thicknesses of the transparent tablet 30 and the spacer 6, so that L
The CD banelf and the transparent tablet 30 are prevented from flying out from the holder 8.

As is clear from the above description, according to this embodiment, the plate spring portions 8c, 8d or 8g, 8h integrally formed with the holder 8 are used to connect the LCD panel and the transparent tablet 3.
0 can be easily and reliably mounted without using separate members such as double-sided tape or fasteners as in the past.

In particular, unlike the conventional example using double-sided tape, the laminated LCD panel or transparent tablet 30 can be easily removed by pressing and deforming the plate spring parts 8c, 8d or 8g, 8h. Also, parts replacement during maintenance becomes extremely easy.

Furthermore, objects made of thin glass, such as the LCD panel 7 or the transparent tablet 30 in the ultrasonic system, are likely to break under loads from the thickness direction, and therefore,
Although the conventional structure shown in Fig. 10 cannot guarantee sufficient strength, when pressing from the side as in the embodiments shown in Figs. 1 to 6, the strength against impact loads can be improved. .

Further, as shown in FIG. 6, the spacer 6 has a boss 8m.
It is positioned by engagement of the round holes 6a and 6a. This can be done by positioning the spacer 6 along with the transparent tablet 30 using the leaf spring parts 8g and 8h, but the spacer for preventing Newton's rings is generally 0.1 to 0.
This is because it has a thickness of only about 5 arms, which is considerably thinner than the transparent tablet 30 or the LCD panel 7, and it is difficult to hold it with a load from the side. However, if the spacer 6 is positioned by engaging the boss 8m and the round hole 6a, the position of the spacer 6 can be reliably regulated.

Further, in the above embodiment, the transparent tablet 30 and the LC
A fixed display 6b for forming a touch key area is provided on the spacer 6 for preventing Newton rings of the D panel 7. According to such a configuration, it is possible to easily define the area for the touch keys without complicating display control, without having to take the trouble to display on the LCD panel 7.

That is, as shown in FIG. 7, the spacer 6 portion.

When the minute fixed display part 6b is pressed with an input pen, the coordinates are manually input to the corresponding position on the transparent tablet 30, so by detecting this coordinate input, it is possible to select execution of the function corresponding to the fixed display 6b. can. In FIG. 7, the LCD panel 7 also extends below the fixed display 6b, but even if this portion is omitted, the transparent tablet 30 can be used to select functions.

As described above, by providing a fixed display part on the spacer 6, the display contents can be visually recognized through the transparent tablet 30, and the corresponding function can be selected by inputting coordinates to the corresponding area of the transparent tablet 30. can do. It goes without saying that the fixed display 6b may be used for design purposes such as displaying a brand name.A different embodiment is shown in FIG.

In the above embodiment, the transparent tablet 30 (or LCD
The panel 7) is positioned and fixed only by pressing force from the side, but as shown in FIG.
By forming claws 8p and 8q extending further inward than the sides of the transparent tablet 30 at approximately the center of h,
The position of the transparent tablet 30 can be regulated more reliably. In this case, the vertical movement of the transparent tablet 30 is also controlled by the claw 8.
Since the impact is regulated by p and 8q, the transparent tablet 30 can be reliably fixed even if the impact applied to the device has a component in the vertical direction in the figure. A structure in which such claws ap and aq are provided can also be provided in the leaf spring parts 8c and 8d that fix the LCD panel.

[Effects of the Invention] As is clear from the above description, the present invention provides an information input/output device in which a transparent coordinate input device is disposed on a display device and inputs and outputs information using the display device and the coordinate input device. , a configuration is adopted in which a holder means for holding the display device and the coordinate input device within the device is provided, and the display device and the coordinate input device are biased and supported from the side by an elastic member integrally formed with the holder means. As a result, the display device and coordinate input device can be supported from the side by the elastic means integrally formed with the holder means, and the display device and coordinate input device can be held with a simple and inexpensive structure. In addition to being able to attach and detach the input device, it has excellent effects such as being able to improve the strength against loads in the direction intersecting the display surface or the coordinate input surface.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a holder used in the input/output section of an information input/output device adopting the present invention, FIG. 2 is a perspective view showing the general configuration of the information input/output device, and FIGS. FIG. 5 is a plan view showing the procedure for mounting components on the holder; FIG. 6 is an exploded perspective view showing the mounting state of the laminated member on the holder;
'M7 is a sectional view showing the operation of the device, FIG. 8 is a perspective view showing a different embodiment, and FIGS. 9 and 10 are exploded perspective views showing the structure of different conventional information input/output devices. be. 1... Upper case 2... Lower case 3... Input/output surface 7... LCD panel 8... Holder
8a...Concave portion 8b...Stepped portion 8cs8d-8gs8h''/plate spring portions 8e, 8f, 8i, 8j...
・Side wall 8m...Boss 10...Circuit board 4
Figure 2

Claims (1)

[Scope of Claims] 1) In an information input/output device in which a transparent coordinate input device is arranged on a display device and information is input/output using the display device and the coordinate input device, the display device and the coordinate input device are arranged within the device. An information input/output device comprising a holder means for holding the display device and the coordinate input device from the side by an elastic member integrally formed with the holder means. 2) The display device and the coordinate input device are supported also from the outside of the device by engagement means provided on an elastic member integrally formed with the holder means. Information input/output device. 3) A spacer is disposed between the display device and the coordinate input device, and the spacer is positioned by engaging with engagement means provided on the holder means. The information input/output device according to item 2. 4) The information input/output device according to any one of claims 1 to 3, wherein the spacer is provided with a fixed display means.