JPS62179993A - electronic card - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an electronic card equipped with operation keys.

[Technical background of the invention]

Recently, IC cards, such as credit cards and banking cards, are equipped with a wiring board with an IC chip attached inside, and a connecting terminal that contacts the card contact part of the card terminal device is exposed on the outside of the card. Electronic cards called ``digital cards'' are increasingly being adopted. This electronic card verifies the PIN number inside the card, and the PIN number registered on the card cannot be read externally, so it has a better ability to keep the PIN number confidential than magnetic cards. It has the characteristic of being extremely high.

This electronic card is used by being inserted into a card terminal device at a store, bank, etc. This electronic card is inserted into the card terminal device and its connection terminal is brought into contact with the card contact part in the card terminal device. If you enter your PIN number from the keyboard connected to the card terminal device in this state, the entered PIN number will be sent from the card terminal device to the electronic card and will be input into the electronic card as the PIN number registered on the card. A verification is performed against the entered personal identification number, and the result is sent to the card terminal device and displayed on the display section of the card terminal device. In addition to the PIN verification function, some of these electronic cards are equipped with a memory function that stores history information such as card usage information, that is, transaction information such as transaction information made with the card. The card terminal receives transaction information entered into the card terminal by a store clerk or bank clerk from the card terminal through its keyboard, and stores this transaction information in the memory.

Conventionally, this electronic card has been known to have a single purpose such as credit, banking, etc., but recently, one card has been used for credit, banking, reservation (airline), etc. It is also being considered that the system can be used for multiple purposes, such as reservations and purchases of tickets, train tickets, reserved seat tickets, hotel accommodation tickets, etc.

This electronic card is also called a multipurpose IC card, and its purpose is selected by a purpose selection operation key provided on the card surface.

This multifunctional electronic card is used by selecting the purpose of the card by operating the operation keys. For example, if the purpose is selected for credit, the card can be used as a credit card, or If the usage is selected for banking, this card can be used as a banking card, and if the usage is selected for reservation, this card can be used as a reservation card.

Recently, it has also been considered to provide an electronic card with a history information readout and display function for displaying and outputting history information (card usage history) stored in its memory section. This electronic card is provided with an H history recall operation key and a display section on the card surface, and by operating the operation key, history information stored in the memory section is read out and displayed on the display section. If an electronic card is provided with the function of reading and displaying such history information, even if the user forgets the amount of accounts payable for purchases made with the card, it can be easily known.

By the way, in order to make an electronic card multi-functional by providing it with a usage selection function, a function to read and display history information, etc., it is necessary to increase the number of IC chips or to increase the number of IC chips depending on the functions to be provided to the electronic card. LS instead of chip
It is necessary to use an I-chip, but developing a dedicated LSI chip to match the functions provided by the electronic card would require an enormous development cost, so if there is no demand for equipment for electronic cards with the same specifications. Because I can't get accepted,
Generally, it has been considered to combine a plurality of general-purpose IC chips to make electronic cards multifunctional.

[Problems with frontal technology] However, when using multiple IC chips as described above, these multiple IC chips must be placed at multiple locations on the distribution board, so it is difficult to place them on the card surface. The position of the operation key for calling up the selection Ab1 history is restricted.

That is, the electronic card mentioned above is used by being inserted into a card terminal device.

It is necessary to reduce the thickness of the IC.
It is necessary to accommodate the IC chip within the thickness of the wiring board by accommodating the chip in an opening provided in the wiring board.
In order to accommodate and arrange the chips within the thickness of the distribution board, it is necessary to provide openings for accommodating the IC chips at multiple locations on the wiring board. However, in electronic cards in which operation keys are provided on the card surface for selecting applications and calling up history, the operation keys are configured with key contacts provided on the wiring board surface. If openings for accommodating IC chips are provided in multiple locations, the key contacts for the operation keys must be provided in limited locations without the openings, and for this reason, the key contacts must be placed on the surface of the wiring board on which the IC chip is mounted. In the electronic card provided, the position where the operation key is provided is restricted.

[Purpose of the invention]

This invention was made in view of the above-mentioned circumstances, and its purpose is to arrange a plurality of IC chips on a wiring board within the thickness of the wiring board. To provide an electronic card in which a key contact point can be provided even in a part that interferes with an IC chip accommodating opening of a board, and the position of an operation key provided on the card surface can be arbitrarily selected.

[Summary of the invention]

That is, in this invention, a plurality of IC chips are housed in openings provided at a plurality of locations on a wiring board, a sub-layout IL board is stacked on top of this wiring board, and operation keys are provided on the surface of this sub-wiring board. In this way, by stacking the sub-wiring board on top of the wiring board on which the IC chip is mounted and providing the key contacts for the operation keys on the surface of this sub-wiring board, the wiring board Since a key contact can be provided in the portion overlapping the IC chip housing opening, the key contact can be provided at any position regardless of the IC chip placement position on the wiring board. You can choose any position.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

First, to explain the outline of the electronic h-domain, Figs. 2 and 3 show the following.
The figure shows the external appearance of an electronic card.The dimensions of this electronic card are the same as those of a credit card (85.5 x 54) specified by ISO. As shown in Figure 2, on the top side, there is a usage selection key (A key) 2 in the center of the lower edge for selecting the usage of the electronic card, and a history of transaction information etc. stored in the electronic card. A one-history call key (K key) 3 for calling up and displaying information is provided, and a history call key (K key) 3 is provided on the upper edge side of the card near the rear end to display information for a use selected by the use selection key 2 and a history call key (K key) 3 for recalling and displaying information. A display section 4 for displaying historical information is provided. In addition, as shown in FIG. 3, on the bottom side of this electronic card, a required number of card contacts are placed at the front end of the card and contact the card contacts provided on the bottom of the card insertion part of the card terminal device (not shown). Connection terminal 5.5
are arranged in two layers.

Next, the detailed configuration of this electronic card will be explained.

1 and 4 show cross sections taken along lines II and -■ in FIG. 2, and FIG. 5 shows an exploded view of the electronic card.

This electronic card includes a card main body 1, a distribution board unit 20, a liquid crystal display panel 40, a purpose selection and a
The liquid crystal display panel 40 is placed near the rear end of the upper edge of the card body 1, and the vapor battery 50 is located below the liquid crystal display panel 40. It is stored on the side.

First, the card body 1 will be explained. The card body 1 is made up of a synthetic resin frame 10 constituting its outer periphery, an upper panel 11, and a lower panel 12. As shown in FIG. 6, the upper panel 11 has a top sheet 11k of the same size as the outside of the frame 10 on the top surface of the top sheet 11a, which is slightly smaller than the outside of the frame 10.
) is laminated to have a two-layer structure, and a double-sided adhesive sheet 11C is adhered to the lower surface of the upper sheet 11a. The top sheet 11b is made of a transparent resin sheet made of polyester or the like with blind printing, leaving a display window 4a, and keys for the application selection key 2 and the history call key 3 are provided at the center of the lower edge of the top sheet 11b. Display 2a, 3a
is printed. Further, the upper sheet 11a is made of a metal plate such as stainless steel in order to ensure the strength of the upper panel 11, and a display panel fitting corresponding to the display window portion 4a of the upper sheet 11b is fitted into the upper sheet 11a. There are provided an opening 13 for the key operator and a key operator opening 14° 14 corresponding to the key display printed portion of the top sheet 11b. Further, the double-sided adhesive sheet 11C is the top sheet 11b.
This double-sided adhesive sheet 11c has a notch 13a corresponding to the opening 13 for inserting the display panel in the upper sheet 11a, and a cutout 13a corresponding to the opening 14 for the key operator part in the upper sheet 11a. Openings 14a, 14a are provided.

Further, as shown in FIG. 7, the lower panel 12 has a lower sheet 12a slightly larger than the outer diameter of the frame 10, and a lower sheet 12a having the same size as the outer diameter of the frame 10.
2b is laminated, and a double-sided adhesive sheet 12C is adhered to the upper surface of the lower sheet 12a. The lower sheet 12b is made of a resin sheet such as polyester, and the connecting terminals 5, which are provided on the lower surface of the wiring board unit 20, are attached to the lower sheet 12b.
5 is exposed on the lower surface of the card.

5a is provided. The lower sheet 12a is made of a metal plate such as stainless steel to ensure the strength of the lower panel 12.
A terminal insertion opening 15.15 is provided as a relief for the connection terminal 5.5. The double-sided adhesive sheet 12C has the same size as the lower sheet 12a, and the double-sided adhesive sheet 12c has a battery holder 51 that holds a paper battery 50 stored under the liquid crystal display panel 40. The cutout 16 that provides relief and the lower sheet 1
Opening 15a corresponding to terminal insertion opening 15.15 of 2a
, 15a are provided.

Further, the frame 10 has a shape in which the upper and lower surfaces are recessed leaving the outer peripheral portion, and a portion corresponding to the storage portion of the paper battery 40 is cut out to form a battery insertion portion 10a. , the upper panel 11 and the lower panel 1
2 adheres the outer peripheral parts of the upper sheet 118 and lower sheet 12a to the upper and lower surfaces (concave surfaces) of the inner peripheral part of the frame 10 via the double-sided adhesive sheets 11C and 12C, and The outer periphery of 12b is adhered to the upper and lower surfaces of the outer periphery of the frame 10, and is fixed to the frame 10 as shown in FIG.

Next, the wiring board units 1 to 1 provided in the card body 1 are
20, this wiring board unit 20, as shown in FIG. The main wiring board 21 and the sub-wiring board 22 have the same shape with a cutout portion for disposing the liquid crystal display panel 40 and the paper battery 50 housed therebelow. The main wiring board 21 has a predetermined pattern of wiring 23.23 formed on its lower surface, and the lower sheet 12 is formed on the lower surface of the main board 21.
A required number of connection terminals 5.5 are provided in the portions corresponding to the respective openings 5a, 5a provided in b, and a large number of display panel connection terminals 24.2 are provided on the edge facing the display panel placement portion.
4 are formed in an array. The connection terminals 5.5 are fitted into the respective openings 5a, 5a of the lower sheet 12b, and the connection terminals 5.5 are inserted into the fourth openings 5a.
As shown in the figure, the connection terminals 5, 5 are exposed on the bottom surface of the card, and are formed to have approximately the same thickness as the bottom panel 12 so that their surfaces are flush with the bottom surface of the card. There is.

The main wiring board 21 also has four IC depths, a CPU depth 25, an expansion I
10 port chip 26, display drive chip 27,
An EEE'-ROM deep 28 and chip components (not shown) such as a chip capacitor are attached. These I
C chip 25°26.27.28 is shown in Figs. 1 and 4.
As shown in the figure, a frontage section 29 provided in the main wiring board 21
These IC chips 25, 26, 27° 28 are inserted into the main wiring board 21 and placed within the thickness of the main wiring board 21 by wire bonding.
It is connected to 23.23. Furthermore, Figures 1 and 4
In the figure, 30 is a bonding wire, and 31 is a sealing resin for sealing the IC chip mounting section. This sealing resin 31 is applied to the area where the IC chips are mounted while the sub wiring board 22 is polymerized and bonded to the upper surface of the main wiring board 21 on which the IC chips 25, 26, 27, and 28 are mounted.
The IC chips 25, 26, 27, and 28 are fixed with a sealing resin 31 in contact with the sub-arrangement m substrate 22.

Further, the sub-wiring board 22 has a pair of key contacts 32, 32 (see FIG. 5) formed on its upper surface so as to face the key display markings 9 of the upper sheet 11b, and the key contacts 32, 32 (see FIG. 5). Since wiring 33.33 was derived and formed from 32.32, each wiring l! 1133.33 is the wiring 23 of the main wiring board 21 via the through hole 34.34 provided in the sub wiring board 22 and the main wiring board 21.
．． It is connected to 23. This through hole 34.34
are formed after the sub-wiring board 22 is polymerized and bonded to the main wiring board 21, so the through-holes 34 and 34 between the sub-wiring board 22 and the main wiring board 21 are plated. By this, this plating layer 3
5 (see FIG. 1).

On the other hand, a liquid crystal display panel 40 is connected to the display panel connection terminal array portion of the main wiring board 21 via a flexible connector 41 (see FIG. 5), and the main wiring board connection end of the flexible connector 41 is covered by the sub placement board 22.

The wiring board unit 20 and the liquid crystal display panel 40 connected to its main wiring board 21 are fitted into the frame 10 of the card body 1 as shown in FIG. The upper and lower surfaces of the sub wiring board 22 and the lower surface of the main wiring board 21 are adhesively fixed to the upper panel 11 and the lower panel 12 by the double-sided adhesive sheets 11C and 120, and the liquid crystal display panel 40 is It is adhesively fixed to the upper surface sheet 11b of the upper panel 11 with a transparent adhesive so as to face the display window portion 4a. Note that the lower panel 12
The double-sided adhesive sheet 12C on the side has the main wiring board 2
The mounting of each tC chip in 1 corresponds to the main arrangement i.
As shown in FIG. 7, an opening 17.17 is provided as an escape for the IC chip sealing resin 31 protruding from the bottom surface of the board 21, and the lower panel 12 is The provided connection terminals 5.5 are inserted into the orientations 5a and 5alC of the lower sheet 12b, and the protruding portions of the IC chip sealing resin 31 are housed within the thickness of the double-sided adhesive sheet 12C, as shown in FIGS. Main layout as shown in Figure 4! ! It is bonded to the substrate 21.

Further, in FIG. 1, 32a is the sub-wiring board 22.
This is a movable key contact that faces the key contacts 32 and 32 on the top surface, and this movable key contact 32a is formed by printing, for example, carbon ink on the bottom surface of the key display printed portion of the top sheet 11b.

This movable key contact 32a can be moved to the key contact 32 by pressing the key display printed portion on the top sheet 11b.
．． This movable key contact 32a and the key contacts 32 and 32 constitute a key power section for selecting an application and a key power section for calling up one history.

Next, a description will be given of the paper battery 50 used as a power supply battery for application selection and history recall.
In this embodiment, the paper batteries 50 are two paper batteries 50a.

A two-layer type as shown in Fig. 5 in which 50b is 4JIWXI is used. The electromotive principle of the paper battery is the same as that of the lithium battery, but it has a one-pole structure with a thickness of about 0.5 seconds, with an electromotive unit provided between two upper and lower electrode plates. Now, the upper paper battery 50
By sharing the lower electrode plate of a and the upper electrode plate of the lower paper battery 50b, the two-layer paper battery 50
The total thickness is approximately 0.9M.

This paper battery 50 is held by a battery holder 51 and inserted into the card body 1 from the battery insertion part 10a provided in the frame 10 of the card body 1, so that the paper battery 50 can be inserted into the lower side of the liquid crystal display panel 40. It is attached to
The battery holder 51 has the following configuration. That is, FIG. 9 shows a battery holder 51. This battery holder 51 is made of synthetic resin, and this battery holder 51 has a battery holding size that allows the paper-like battery 50 to be fitted almost tightly. part 51a and this battery holding part 518
It consists of a knob portion 51b formed at the base end portion of. The battery holding part 51a is rod-shaped with open upper and lower surfaces, and the thickness of the battery holding part 51a is approximately 1 m, which is slightly larger than the thickness of the two-layer paper battery 50.
Further, the knob portion 51b has a thickness such that its upper and lower surfaces slightly protrude from the upper and lower surfaces of the battery holding portion 51a. Reference numerals 52 and 52 denote a pair of battery contact plates made of metal plates provided on the upper and lower surfaces of the tip side of the battery holding portion 51a, and the battery welding plates 52 and 52 are connected to the battery holding portion 5.
It is fitted into the four parts 53 and 53 formed on the upper and lower surfaces of the tip of 1a, and this battery contact! It is attached to the battery holding part 51a by fitting the opening-shaped bent pieces 52a, 52a formed on one side of the ff152.52 into the notches 54.54 formed on both sides of the front end side of the battery holding part 51a. ing. This battery holder 51 holds a paper battery 50 which is inserted into the battery holding part 51a by inserting the tip side between the battery contact plates 52 and 52, and the upper battery contact plate 52 holds the paper battery 50. The lower battery contact plate 52 contacts the upper surface (for example, negative electrode surface) of the upper battery 50a of the
are in contact with the lower surface (for example, the positive electrode surface) of the lower battery 50b of the paper battery 50 to sandwich the paper battery 50 from above and below.

This battery holder 51 is located in a battery holder storage space from the battery insertion portion 10a under the liquid crystal display panel 40 in the card body 1 (space in the cutout of the placement board unit 20).
This battery holder 51 has its upper and lower surfaces aligned with the lower surface of the liquid crystal display panel 40 (reflector 408 surface on the lower surface of the display panel) and the lower sheet 12 of the lower panel 12.
It is guided by the top surface a and inserted into the battery holder storage space as shown at tl 8 in FIG.

Further, the battery holder 51 is inserted until the grip portion 51b is completely inserted into the card body 1 and the outer surface of the grip portion 51b is flush with the outer surface of the card body 1. The upper surface side of the knob part 51b enters under the upper panel 11a of the upper panel 11, and the upper surface side of the knob part 51b
The lower side of 1b has cutouts 19a and 19b formed at the edges of the lower sheet 12a and the lower sheet 12b of the lower panel 12.
(See Figure 7). Note that the lower surface of the grip portion 51b is substantially flush with the lower surface of the card body 1.

Moreover, the opening-shaped bent piece 52a of the battery contact plate 52.52 provided on this battery holder 51.

Reference numeral 52a is an electrode portion that comes into contact with a battery connection terminal plate 55.55 attached to the main wiring board 21 of the placement board unit 20. The battery connection terminal plate 55.55 is
It is made of a leaf spring and has a shape as shown in FIG.
A chevron-shaped bent portion 55a is formed which fits from the side into a notch 54 formed on the tip end side of the battery contact plate 52 and contacts the mouth-shaped bent piece 52a of the battery contact plate 52, and a board mounting piece 55b is formed on the base end side. It is bent horizontally. This battery connection terminal board 55.5
5 are arranged to face each other with an interval corresponding to the width of the battery holder 51, and the board mounting pieces 55
b, 55b is formed by wrapping around the side edge of the main wiring board 21 from the side surface to the top surface.
56 and is attached to the main wiring board 21 by soldering.

Note that the board mounting piece 55b soldered to the terminal electrode 56°56 on the upper surface of the main wiring board 21 is attached to the sub wiring IM.
The raised portion that is covered by the plate 22 and overlaps the board mounting piece 55b of the sub-wiring board 22 is formed by the opening 18 (
(see Fig. 6) as shown in Fig. 4.

This battery connection terminal plate 55.55 locks the battery holder 51 inserted into the card body 1, and connects the paper battery 50 to the main wiring board 21 by contacting the battery contact plate 52.52 of the battery holder 51. When the battery holder 51 is pushed and inserted into the card body 1, the battery connection terminal plate 55.
When the tip of the battery holder 51 is pushed by both sides and bent outward, and the battery holder 51 is completely inserted into the card body 1, the chevron-shaped bent portion 55 of the battery connection terminal plate 55.
a, 55a fit into the notch 54.54 of the battery holder 51 as shown in FIG. 55a contacts the opening-shaped bent pieces 52a, 52a of the battery contact plate 52.
It is designed to be electrically connected to 1.

In addition, as shown in FIG. 9, a groove 510 is provided on the lower surface of the knob portion 51b of the battery holder 51.
When replacing the battery, the battery holder 51 is pulled out by hooking the tip of the nail on the hook 510 and pulling the battery holder 51 strongly.

On the other hand, in FIGS. 2 and 3, reference numeral 60 denotes a sliding power switch provided on the side surface of the rear end side of the card body 1 in parallel with the battery insertion part 10a. The structure is as follows. That is, in Figures 5 and 10:, ctj ite, 61a, 6
1b and 61c are slide switch contacts formed on the side surface of the wiring board unit 20, of which 61a and 61b are GND contacts, and 61C is a Voo contact. As shown in FIG. and the bottom surface of the sub wiring board 22)
The two substrates 21 and 22 are formed so as to be wrapped around the opposite surfaces thereof, and are connected to each other in contact with each other at the portions that are wrapped around the opposing surfaces of both substrates 21 and 22. Further, in FIGS. 5 and 10, reference numeral 62 denotes a synthetic resin slide member that is guided by the inner surface of the frame 10 of the card body 1 and is slid in the width direction of the card body 1. 62 is provided with an operation knob 62a projecting slightly from the recessed groove 63 provided in the frame 10 to the outside of the card body 1.

Further, a brush 64 made of a leaf spring is attached to the side of the slide member 62 facing the wiring board unit 20, and the brushes 64 are made of a leaf spring and come into elastic contact with the side surfaces of the wiring board unit 20 at both ends. This brush 64 moves together with the slide member 62 to form contacts 61a on the side surface of the wiring board unit 20.

61b and 61c, and when the slide member 62 is moved toward the display section 4 by sliding the operation knob 62a, the brush 64 contacts the GND contact 61a and the vDD contact 61c as shown in FIG. in contact with 2
! When the power switch 60 is turned on and the slide member 62 is moved to the opposite side (the position where the brush 64 contacts the GND contact 61b), the brush 64 is separated from the Voo contact 61C and the power switch 60 is turned off. Further, the frame body 10
is provided with two recesses 66a and 66b that engage with a protrusion 65 provided at one end of the slide member 62 when the N source switch 60 is turned on and turned off. This gives a sense of moderation to the slide operation of the
It is designed to be locked in the F state.

Note that the thickness of the wiring board unit 20 is the same as that of the upper panel 1.
1 and the lower panel 12,
Therefore, the thickness of this electronic card is the same as that of the battery holder 51.
The thickness of the liquid crystal display panel 40 is about 1#Ill and the thickness of the liquid crystal display panel 40 is about 0.
5 m+ plus the thickness of the top sheet 11b of the top panel 11 and the bottom sheet 12a and bottom sheet 12b of the bottom panel. In other words, the thickness of this electronic card is approximately 1.8 IM! Although this electronic card is slightly thicker than a single-purpose electronic card without a display or keypad, it can be easily inserted into a card terminal device.

Next, to explain the circuit configuration of the electronic card, the 11th
In the figure, 70 is a CPU, and this CPU 70 includes a connection terminal 5.5 that contacts the card contact portion of the card terminal device, an application selection key 2, and
The use key 3 is connected to a display drive section 71, and the CPU 70 is connected to a storage calculation section 72, a use specification section 73, and an EEP-ROM 74. This EEP
- The ROM 74 stores a personal identification number (hereinafter referred to as PIN), and combines the input information (the personal identification number input by the card owner) entered from the keyboard connected to the card terminal device via the card terminal Si and the PIN. It has a password verification section 74a that compares the numbers and outputs a match or mismatch signal, and a balance storage section 74b that stores history information such as card usage history, that is, transaction information on transactions made with the card. In addition, the use specification section 73 includes:
Usage data such as credit, banking, reservation, etc. is stored. Note that 75 is a power source.

To explain the operation of this circuit, the application selection key 2 is operated to select the application of the electronic card. When the power switch 60 is turned on and the application selection key 2 is operated, the application selection key 2 is activated by the CPU 70. Human power is applied, and the first usage data among the usage data stored therein is read out from the usage specifying unit 73. This usage data is held in the storage calculation section 72 and is also sent to the display drive section 71 to be displayed on the display section 4. Note that this operation is repeated every time the usage selection key 2 is operated, and each time the usage selection key 2 is operated, usage data is sequentially read from the usage designation section 73 and stored in the storage calculation section 72. As the usage data code is updated, the display on the display unit 4 is also changed. Therefore, by operating the usage selection key 2 until the desired usage is displayed on the display unit 4, the usage of the card can be selected as the desired usage, and the selected usage data can be stored in the storage calculation unit 72. .

The above-mentioned usage selection is made when the electronic card is used, and the electronic card selected for the desired usage, such as credit card usage, is inserted into the card terminal device. In this case, since the above-mentioned electronic card has the application selection key 2 and the display section 4 on the top side and the connection terminal 5.5 on the bottom side, the application selection key 2 and the display part 4 are provided with the top side of the card facing up.
After operating and confirming the displayed selected usage,
By inserting the electronic card into the terminal device in this position, the connection terminal 5.5 on the bottom side of the card can be brought into contact with the card contact section provided on the bottom surface of the card insertion section of the terminal device. In other words, if the connection terminal, application selection key, and display section are provided on the same side of the card, when selecting the application, the card is turned over so that the application selection key and display section are facing upward, and when the card is inserted into the terminal device, the card is turned over. You have to turn it over so that the connection terminal is facing down, but if you provide the application selection key 2 and display section 4 on the top side of the card and the connection terminal 5.5 on the bottom side of the card as described above, you can select the application. Since it is not necessary to turn the card over each time when inserting the card into the card terminal device and when inserting the card into the card terminal device, it is possible to easily select the application and insert the card into the card terminal device. Furthermore, since this electronic card can be inserted into the card terminal device with the display section 4 facing upward, it is possible to reconfirm the selected purpose displayed on the display section 4 when inserting the electronic card into the card terminal device. Even if the purpose is selected as WA, this can be easily discovered when the card is inserted into the card terminal device, and it is possible to prevent the card from being inserted into the card terminal device with the purpose selected incorrectly.

When the electronic card is inserted into the terminal device and its connection terminal 5.5 is brought into contact with the card contact section of the terminal device, a reset signal is sent from the terminal device to the card and the CPU 70 is reset (however, the memory is not reset). (The application data stored in the calculation section 72 and the application display on the display section 4 are left as they are), and the answer is returned from the card to the terminal device. When this answer is sent to the terminal device, the TO code is sent from the terminal device to the card, and the usage data stored in the storage calculation section 72 is sent from the card to the terminal device. The terminal device checks this usage data and, if the usage data is suitable, displays a password input instruction on the display section of the terminal device.

Then, when the card owner inputs a PIN number from a keyboard connected to the card terminal device, this input information (PIN number) is sent from the terminal device to the card. This input information is sent to the password verification section 74a of the EEP-ROM 74, and the password verification section 74a of the EEP-ROM 74
The card is compared with the PIN stored in the card 4a, and if both match, a match signal is sent, and if they do not match, a mismatch signal is sent from the card to the terminal device. If the memorized numbers match or do not match, the display on the terminal device will indicate whether the transaction is OK or NG.
will be displayed as .

Here, if the transaction is OK, the store clerk inputs transaction information such as the amount of the product to be purchased by the customer (card holder) into the terminal device from the keyboard section. Transaction information entered into this terminal device is sent from the terminal device to the card, and the card transfers this transaction information to the EEP-R.
It is sent to the balance storage section 74b of the OM 74 and stored in its credit storage area. This is the same when using an electronic card for banking, reservations, etc. For example, if you select the purpose of the card for banking and use it as a banking card, the information sent from the terminal device (deposit deposit information) Withdrawal information) is stored in the banking storage area of the balance storage unit 74b, and when the purpose of the card is selected for reservation and used as a reservation card, the information sent from the terminal device (reservation information, amount information, etc.) It is stored in the reservation storage area of the balance storage section 74b.

Note that the card storing transaction information and the like is removed from the terminal device after the operation of the terminal device is completed.

The electronic card also has a function of displaying history information such as transaction information stored in the balance storage section 74b on the display section 4. When the history recall key 3 is operated with the purpose of the card selected, for example, for credit, the information stored in the credit storage area is read out from the balance storage section 74b in the order in which it is stored and displayed on the display section 4 in sequence. When the lfl/FFfl call key 3 is operated with the card usage selected as banking, the information stored in the banking storage area of the balance storage unit 74b is sequentially displayed on the display unit 4, and the card usage is set to reservation. When the history call key 3 is operated in the state where the reservation is selected, the information stored in the reservation storage area of the balance storage section 74b is sequentially displayed on the display section 4.
will be displayed. Therefore, according to this electronic card,
Even if you forget the amount of accounts payable, the amount of deposits and savings, reservation details, etc. purchased by the card, you can arbitrarily call up the M1M information stored in the card and know the usage history of the card for each purpose.

Note that the display of the a-history information may be automatically switched at fixed intervals (1 to 2 seconds), or
The following information may be displayed each time the JM call key 3 is operated.

Therefore, in this electronic card, the wiring board unit 2o is connected to the IC chip 25°26.27.2 as described above.
This is because the key contacts 32 and 32 of the application selection key 2 and the history call key 3 are provided on the sub-wiring board 22. , IC chip 25.26
．． 27° 28 into the openings 29 and 29 of the main wiring board 21 to make the card thinner.
The positions of the key contacts 32, 32 can be freely selected and the application selection key 2 and history call key 3 can be provided at any location. In other words, if there is only one wiring board,
If an opening is provided in the wiring board and an IC chip is housed in the opening, the key contact position will be limited to the area without the opening, making it impossible to arbitrarily select the key position. Then, superimpose the sub-wiring base Fi22 on the main wiring board 21 to create this sub-arrangement Ii! If the key contacts 32.32 are provided on the board 22, the key contacts 32.32 can be provided above the IC chip accommodation opening 29 of the main wiring board 21 as shown in FIG.
The key contacts 32, 32 can be provided at any position regardless of the arrangement position of the chips 25, 26, 27, 28, and therefore the positions of the application selection key 2 and history call key 3 provided on the card surface can be arbitrarily selected. be able to.

Furthermore, in the above embodiment, the space under the liquid crystal display panel 40 is used to store the power paper battery 50 in this area, so there is no need to secure a separate storage space for the power battery. Therefore, the wiring board unit 20 can be made larger by that amount to provide more room for routing wiring on the board surface and for arranging IC chips and the like.

In the above embodiment, the application selection key 2 and the 1st history call key 3 are connected to the key contacts 32 and 32 formed on the wiring board unit 20 and the movable key contacts 3 provided on the top sheet 11b.
2a, the application selection key 2 and history call key 3 may be of a variable type. Further, in the above embodiment, a multi-purpose electronic card having a purpose selection key and a function of reading and displaying employment information has been described, but the present invention is also applicable to a multi-purpose electronic card having only a purpose selection function and 1. It can be applied to single-purpose electronic cards that have a function to read and display history information, and it is not limited to cards that have a purpose selection function or a function to read and display whereabouts information. It goes without saying that the present invention can be widely applied to electronic cards equipped with operation keys on the card surface, such as electronic cards that are arranged to function as a small electronic calculator.

〔Effect of the invention〕

In this invention, a plurality of IC chips are housed in openings provided at a plurality of locations on a distribution WJ board, a sub-wiring board is stacked on top of this distribution board, and operation keys are placed on the surface of this sub-wiring board. Since it has contacts, it can be used with multiple ICs.
Even though the chip is placed within the thickness of the wiring board, key contacts can also be provided in the portion of the wiring board that overlaps with the IC chip housing opening. Therefore, the position of the operation key provided on the card surface can be selected arbitrarily.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an enlarged sectional view taken along the line I-I in FIG. 2, and FIGS. 2 and 3 are views from the top and bottom sides of the electronic card. Fig. 4 is an enlarged sectional view taken along line IV-IV in Fig. 2, Fig.
The figure is an exploded perspective view of the electronic card, Figures 6 and 7 are exploded perspective views of the upper and lower panels that make up the card body, and Figure 8 is an exploded perspective view of the NiI substrate unit provided within the card body. , FIG. 9 is a perspective view of a battery holder that holds a vapor-shaped battery housed in the card body;
FIG. 10 is an enlarged perspective view showing the battery compartment of the electronic card;
FIG. 1111 is a block diagram showing the circuit configuration of the electronic card. 1...Card body, 2...Application selection key, 3...
History call key, 4...display section, 5...connection terminal,
21... Main wiring board, 22... Sub wiring board,
25, 26.27, 28...IC chip, 29...
IC chip storage opening, 32...Key contact, 32a...
- Movable key contact.

Claims (1)

[Claims] A wiring board with multiple IC chips installed inside is installed,
and an electronic card having a connection terminal that contacts a card contact portion of a card terminal device and an operation key on a card surface, wherein the plurality of IC chips are installed in openings provided at a plurality of locations on the wiring board. What is claimed is: 1. An electronic card comprising: a sub-wiring board placed on top of the wiring board; and key contacts of the operating keys provided on the surface of the sub-wiring board.