The present invention provides a functional diene polymer, a preparation method thereof and a rubber composition comprising the functional diene polymer. The drive unit drives the at least a part of the unit pixel in an image period by applying thereto an image voltage corresponding to an image, and in a preliminary period preceding to the image period by applying a preliminary voltage equal to or higher than a threshold voltage that allows LC molecules in the LC layer to start change of orientation of the LC molecules. The system also includes a sense circuit to detect when a transient event occurs and to send a signal to the transient suppression regulator to supply or sink current to the load in response to a sensed transient power event. This process is repeated on the inside track so that a raw angle of attack for each set of wheels can be determined based upon speed and time difference. At the card services provider, the PIN is entered into a PIN database and a reference number associated with the customer and a PIN offset is generated.