A bank display card is a card with display and number keyboard. Users can directly check the card balance, transaction records and other information through the LCD display on the card, or even as the OTP card for large transfers. The bank display card has characteristics of novel fashion, convenient query, security token and so on. Experts believe that the display card is expected to become the main trend of the future bank card as with the breakthrough of display technology and card printing process. Ultrable ultra thin battery is ultra thin, high energy density, low self discharge rate, it can be used as the power of the display card.