TWI255425B - IC card with display panel but without batteries - Google Patents

Abstract

An ""IC card with display panel but without batteries"" includes a communication interface, a microprocessor, an EEPROM, a rectifier/voltage regulator, a display driver, and a charge-pump disposed therein, and a display panel disposed thereon. The microprocessor, after receiving the external data, reads the data through the microprocessor and displays them on the display panel for the users to look up the external data. The display panel is the one with bistable function having the characteristic that once the data are displayed, no persistent power supply for the display panel is needed, thus the displayed data will be preserved persistently until the next time when data are updated. The communication interface can be either a contactless type RF (radio frequency) interface or a contact-type communication interface. The internal working voltage can be supplied by making use of the RF interface circuit to receive the RF signals to generate direct current source through rectification and voltage regulation. The power source signals of the contact-type communication interface can provide the power source too.

Description

1255425

V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) [Technical field to which the invention pertains] The present invention relates to a > bistable function; and a display type IC card of a battery is a non-contact type radio frequency device. The power supply is provided by the communication interface, and its interface can be “face or contact communication interface.” [Prior Art] Due to the replacement of the technology card, many of the transactions and payment methods have been gradually saved by the IC. Etc., and the credit card, financial card and telephone card, bus, and the following types. ^ The "il-tong ic card communication interface can be roughly divided into 1 · contact interface: Λ: 〇 ^ μ. Knife is the arm Hui card and commemorative card

.8: Control mechanism function, included; processor, which can be divided into =, 16-bit or 32-bit, and attached DES, RSA in the processing 'Generally known as smart card (SMART CARD). The memory card contains memory, simple logic circuit, and its memory is read-only memory (ROM) or non-volatile readable, recorded (EEPR0M) 'the memory capacity can be divided, 4K, 1 ft' 16Κ ...1 Μ Μ BY BY (BYTES), _ generic name ^, card (MEMORY CARD). 4 $ 2· Non-contact interface: can be divided into A type, B type and Felica type, A type and B type are the standard of Proximity ISO 1 4443, recalling

1255425

The Fe 1 i ca type is the standard of Sony Corporation, and its communication distance is about 丨〇 丨〇 丨〇. 3 · Composite card · Combines contact and non-contact interfaces on one card, usually divided into single-chip type and multi-chip type. In addition, other devices, such as magnetic strips, magnetic codes, optical memories, etc., are usually added to the various I C cards described above to increase or expand their application or use range. However, no matter what type of IC card is made, when the user wants to know the content on the IC card, 'you need to hold the IC card to the card reader to read the content, and then use the card reader to check the content'. When there is no card reader or connected monitor, this function can not be performed, which is quite inconvenient; in addition, the Ic card can not be integrated for different purposes, so the week must carry various functions or uses. The 1 c card forms a trouble with the card, and thus increases the cost of issuing the card. In view of this, one of the inventors has invented a 1C card with a display device and applied for a patent (Application No. 87 1 0 3 2 68), which has also been approved; according to the invention, a microprocessor is placed inside the 1C card. (π^οΓο-ρ r 〇cess 〇r ), non-volatile read/write memory (EEPROM) and card reader interface circuits, and The card is provided with a display (disp 1 ay ) ( 1 1 ), a solar battery (12), and a contact switch (13) (14) (see Figure 1) to make the card reader Interface to receive

1255425 is set at the voltage source, and can be further highlighted by the invention. The invention is based on the invention and (5) the classification of the information of the card reader, and then the storage of the information and the information of the memory. , on the device, to make the content, and the power required to exempt the content is required, the power supply required for the I c card, so in the process, the battery and cost are charged, so the factors are After that, after the display is provided, the micro-processing material is stored in the non-volatile user to touch the touch, and the data content is convenient for the user to carry the IC card to the 1C. However, the invention of the side card surface, or by using the card is more versatile, but also occupies an evaluation such as a non-electric function.

When the data is readable and writable by the memory button, the Chinese card can be directly read by the Chinese or English card to read the 1C card, which is too 11⁄4 to be placed in the card, and the touch and touch performance is different, and the The whole IC card shortens the display type of the production pool, and the decoder of the lower IC is used to drive the phase pool as a secondary charging button after the data is stored in the micro-processing font, but the solar energy is not smaller than the flow and the 1C card. , card. Decryption and data access to the display data can be found in the display data and the power supply of the device, and the battery can be used to read the commercialized battery, and the production of the two cases reduces the cost. The same invention content

The main purpose of the present invention is to provide a display type K card (see Fig. 2) which is mainly provided with a communication interface, a microprocessor, and a non-volatile read/write device. Memory (EEPROM), Rectifier / Voltage regulator, display driver

1255425 V. Invention Description (4) Display Driver and Charge-Pump, and set the display panel (21) on the surface of the card so that the communication interface receives external data. The data is demodulated and decoded, and the data is read by the microprocessor, and the data is displayed on the display for the user to view the data and content. Wherein, the display used in the present invention is a display with a bistable function, and the characteristic is that after the data is displayed, the power supply is not continuously supplied to the display, but the displayed data is always saved, that is, the display is not driven. When the data displayed on it does not disappear, the displayed content or updated data will not be changed until the next time the display is driven. The communication interface of the present invention can be a non-contact radio frequency interface or a contact communication interface; and the driving power source required in the interior can be obtained as a contactless communication interface or a contact communication interface, and can be obtained by the following different methods. 1. Non-contact communication interface: Design an antenna (22) as shown in Figure 3 in the IC card, which will receive the RF signal from the external card reader, and the coupled signal will be demodulated by the communication interface (2 3 ). Coupling on the other hand

Page 10 1255425 V. Description of the invention (5) For display and reading functions, in addition to eliminating the use of batteries, it is not affected by the service life of the battery, but also shortens the production process, which can improve the yield and thus reduce labor. In addition to the cost of equipment, and due to the significant reduction in material costs, it increases its competitive edge in the market. [Embodiment] The present invention is mainly described as follows: FIG. 2 is a schematic perspective view of the present invention. The card body (2) is provided with a display (21) on the card body, and an IC (32) (illustrated as a contact type IC card), which can display the data on the display for use by the following operation flow. Access to information and content. Figure 3 is a block diagram of the circuit design of the present invention. The communication interface of the present invention can be a non-contact RF interface or a contact communication interface; and the source of driving power required therein can be regarded as contactless communication. The interface or contact communication interface is obtained by the following different methods: 1. Non-contact communication interface: The contactless communication interface refers to designing an antenna inside the IC (3 1 ) of a non-contact RF IC card (2) 2), receiving the RF signal from the external card reader, the coupled signal is radio frequency demodulated via the communication interface (2 3 ), and the coupled signal is generated by the rectification voltage regulator circuit (2 7 ) to generate the DC power supply internal Voltage required. 2. Contact communication interface: contact communication interface refers to a contact type I C card

1255425 5. The IC (3 2) of the invention description (6), after receiving the digital serial signal of the external card reader through the communication interface (23), decodes it for reading by the microprocessor (2 4); The external card reader also supplies DC power to the internal use via the contact interface. The operation flow of the present invention is as follows: After receiving the signal from the communication interface (23), the microprocessor (24) can store the data in the non-volatile read/write memory (28) and can The driving signal of the display (2 1 ) is converted into a driving signal by the display driving circuit (2 5 ) for the user to consult. The microprocessor (24) can also send the response signal to the external card reader via the communication interface (23). The boosting circuit (26) converts the DC power generated by the rectifying and stabilizing circuit (27) into a higher voltage for converting the display driving circuit (25) into a driving signal of the display (2 1 ). In the above manner, after the communication interface receives the external data, the data is demodulated and decoded, and then the data is read by the microprocessor, and the data is displayed on the display for the user to access the stored data and content. The display used in the present invention is a display having a bistable function, and the characteristic is that when the data is displayed, the power supply is not continuously supplied to the display, and the displayed data is always saved, that is, when the display is not driven. The data displayed on it will not disappear until the next time the display is driven, the displayed content or updated data will be changed.

1255425 V. INSTRUCTIONS (7) In addition, the IC (RF IC ) ( 3 1 ) of the non-contact RF IC card and the Contact Smart 1C (32) of the contact type 1C card refer to the wisdom of the market. Card IC. The invention can be equipped with a commercially available smart card IC (contact, contactless or dual interface IC), and the command and encryption method used can be compatible with the smart card IC which is distributed in the market, so that the existing commercially available wisdom can be easily obtained. The card is upgraded to a display IC card without a pool. In the present invention, the commercially available smart card IC is an option, so that the present invention can use a self-defined command and encryption method to communicate with the card reader when there is no commercially available smart card IC, so that the commercially available smart card IC can be saved. the cost of. The IC card that supplies power by the above two methods can provide display and reading functions in addition to eliminating the need to use the battery, without being plagued by the service life of the battery, and shortening the production process to improve the quality. The rate, which reduces labor and equipment costs, and the significant reduction in material costs, increases its competitive advantage in the market, and therefore is highly industrially useful and practical. Also disclosed in the industry or academia, there is no similar or similar technical content of the case, so the novelty of this case is also beyond doubt. Therefore, the case has already met the requirements of the patent law specificity, please apply, please The above is a preferred embodiment of the present invention, which is not intended to limit the scope and scope of the present invention, that is, the equivalent changes and modifications made by the scope of the present invention are The scope of the patent application of the present invention is covered.

Page 13 1255425 Schematic description of the drawing [Simplified description of the drawing] The first figure is a schematic view of the stereoscopic appearance of the prior art. The second figure is a schematic view of the stereoscopic appearance of the present invention. The third figure is a block diagram of the circuit design of the present invention. [Main component symbol description] (1) Card body (11) Display (1 2) Solar battery (13) (1 4) Touch button

(2) Card body (2 1 ) Display (2 2 ) Antenna (23) Communication interface (24) Microprocessor (2 5 ) Display drive circuit (2 6 ) Boost circuit (2 7 ) Rectifier voltage regulator circuit ( 2 8) Non-volatile read and write memory

(3 1) I C of contactless RF I C card

(3 2) I C of contact I C card

Page 14

Claims (1)

1255425 VI. Patent application scope 1. A battery-less display IC card with a communication interface, a microprocessor, a non-volatile read/write memory, a rectification and voltage stabilization circuit, a display drive circuit and a booster circuit And providing a display on the surface of the card; after receiving the signal from the communication interface, the microprocessor stores the data in the non-volatile read/write memory, and converts the data into a display through the display driving circuit The driving signal, and the boosting circuit converts the DC power supply generated by the rectifying and stabilizing circuit into a souther voltage for displaying the driving signal which is not converted into a display by the driving circuit. In this way, the communication interface can be received. After the external data is obtained, the data is demodulated and decoded, and then the data is read by the microprocessor and displayed on the display. 2. The batteryless display type I C card of claim 1, wherein the display is a display having a bistable function. 3. The battery-less display type I C card as described in the first paragraph of the patent application, wherein the communication interface is a contact communication interface. 4. The battery-less display type I C card according to the first aspect of the patent application, wherein the communication interface can also be a non-contact radio frequency interface. 5. For the batteryless display type I C card described in the first paragraph of the patent application, the internal driving power source required is to supply DC power through the contact interface via the communication interface. 6. If the battery-free display type I C card described in the first paragraph of the patent application is applied, the internal driving power source required can also be rectified and supplied with power via the RF interface of the communication interface. 7. If the battery-free display type I C card mentioned in the first paragraph of the patent application is applied, Page 15 1255425 VI. The scope of the patent application can be set up with an antenna in the card, and the RF signal and the coupled signal received from the external card reader are radio-demodulated via the communication interface by means of an antenna. On the other hand, the coupling is performed. The signal generates a voltage required for the internal power supply of the DC power supply via the rectification voltage regulator circuit. 8. The battery-less display type I C card according to claim 7 , wherein the microprocessor can also send the response signal to the external card reader via the communication interface. Page 16