JPH039078Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to a card with a liquid crystal display that stores a code and displays the code on a film-like liquid crystal display so that the code can be optically read.

<Prior art> Conventionally, cards such as cash cards and credit cards are constructed by coating a magnetic material on a base.
Information such as a code is recorded on the magnetic material in advance.
Also, a method often used with cash cards, the card is inserted into a magnetic recording/reading device, and the device reads information such as codes recorded on the magnetic material, and the card owner's input is read. The card owner was identified by detecting a match with the code. However, with this conventional card coated with magnetic material, there was a risk that the recorded information would be erased if accidentally exposed to another magnetic field.

<Objective> The object of the present invention is to provide a new card that eliminates the drawbacks of the conventional cards mentioned above.

<Example> Hereinafter, an example of a card with a liquid crystal display device according to the present invention will be described in detail.

FIG. 1 is a plan view of an embodiment of a card with a liquid crystal display device according to the present invention, and FIG. 2 is an internal block diagram showing a schematic configuration thereof.

1 is a card body (in this embodiment, it is a cash card), and 2 is a film-like liquid crystal display device. The film-like liquid crystal display device 2 is formed by sealing liquid crystal between plastic film substrates, and performs two types of display: a code display and a data display. 2a in FIG. 1 is a code display section, and 2b is a data display section. When the card body 1 is inserted into the card reading device, a code (PIN number) is displayed on the code display section 2a as a code consisting of an intermittent array of vertical lines based on the information recorded in the 1-chip microcomputer 3, and A reading device optically reads the code on the vertical axis.
When the card owner enters the memorized PIN into the card reader, the card reader compares the read code information with the key input information to identify the card owner. I will do it. The one-chip microcomputer 3 is driven by a paper battery 4 built into the card body 1.

Reference numeral 5 denotes a connection terminal, through which data such as balance data is input from the card reading device to the 1-chip microcomputer 3, and a film-like liquid crystal display is output based on the input data to the 1-chip microcomputer 3. The data display section 2b of the display device 2 can display the balance, etc.

Therefore, when using this card, it can be visually confirmed that the data from the card reading device is reliably stored in the card, and the card can be used with peace of mind.

In the above embodiment, a cash card was shown, but the card of the present invention can be used as a credit card,
It is also useful as a public telephone card or a vending machine card. Moreover, the film-like liquid crystal display device 2
If configured as a TN type liquid crystal display device, since the display element is dependent on the viewing angle, there is less risk of the displayed contents of the card being seen from the side when using the card, and the card can be used with peace of mind. .

<Effects> According to the present invention, since various displays can be displayed on the card, a portable card with versatility can be realized. Furthermore, since no magnetic recording medium is used, the card can be used with confidence without accidentally demagnetizing the recorded contents.

Furthermore, while inserting the card into the card reading device, you can visually confirm on the data display section that the data sent from the card reading device to the card is securely stored in the card, making it safer. You can use the card with care.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of a card with a liquid crystal display device according to the present invention, and FIG. 2 is an internal block diagram of the structure. In the figure, 1: card body, 2: film-like liquid crystal display device, 3: 1 chip microcomputer,
4: Paper battery, 5: Connection terminal.

Claims (1)

[Claims for Utility Model Registration] Comprising a connection terminal connected to a card reading device, a calculation means to which data is sent and received via the connection terminal, and a liquid crystal display device for displaying data of the calculation means. In the card with a liquid crystal display device, the calculation means stores a password, and the liquid crystal display device reads the password optically read by the card reader when the card is inserted into the card reader. A card with a liquid crystal display device, comprising a code display section for displaying a code and a data display section for displaying data input to the calculation means through the connection terminal when the card is inserted.