Method for querying information in visual smart card and visual smart card

A visual smart card, wherein said card comprises an input device, a display device, a microcontroller unit, a smart card chip and a self-powered device, the microcontroller unit specifically comprises:

• a receiving module, which is configured to receive an inquiring request input by a user via the input device;
• a determining module, which is configured to determine information which the user requests to inquire according to the inquiring request received by the receiving module;
• a storing module, which is configured to store a first information record;
• a first reading-parsing module, which is configured to read the first information record stored in the storing module in the case that the determining module determines that the information which the user requests to inquire is the first information, and to parse the first information record to obtain the first information;
• a second reading-parsing module, which is configured to send a selecting applet instruction to the smart card chip in the case that the determining module determines that the information which the user requests to inquire is a second information, and receive the response to the selecting applet instruction returned by the smart card chip, and send a reading-information-record instruction to the smart card chip, and receive a second information record returned from the smart card chip, and parse the second information record to obtain the second information;
• and
• a displaying module, which is configured to display the first information obtained by the first reading-parsing module and the second information obtained by the second reading-parsing module via the display device,
• the storing module is specifically configured to store transaction logs;
• the first reading-parsing module is specifically configured to read the transaction logs stored in the storing module in the case that the determining module determines the information which the user requests to inquire is the first information, obtain the latest piece of record information from the transaction logs, and parse the obtained record information to obtain the previous transaction record;
• and
• the displaying module is specifically configured to display the previous transaction record obtained by the first reading-parsing module via the displaying module.