VISA recently showcased a new generation of credit cards that come with built-in LCD displays and keypads. These new types of credit cards were conceptualized in an effort to lessen instances of online shopping fraud which has become common these days. The new cards aren't any different in form from current ones sans the display and the 12-button keypad.

Every time you want to buy online, you would be required to input a pin number directly onto the credit card which then displays a security code on the LCD screen.  Upon implementation of these new cards, online stores will start requiring input of the security codes they generate. "We saw a big rise in online shopping, but consumers were still worried about fraud," said Sandra Alzetta of Visa. According to Daily Mail, these new VISA cards with built in LCDs and keypads will undergo preliminary testing in Britain by early 2009.

http://www.gearlog.com/2008/11/credit_cards_to_get_built-in_lcd_display_and_keypad.php