An image processing terminal comprising: a processor, a memory for storing one or more commands executed by the processor, and a control signal receiving unit for receiving a control signal in accordance with an input to a key by a user from a remote controller. The one or more program commands include commands for, comparing a sensing level corresponding to a pressure or an area applied to the key by the user with a preset value, determining whether the input to the key corresponds to a normal input or a force input depending on the comparing, outputting an identification image for identification of the force input on a screen during a predetermined period of time or adjusting a full size of the screen when the input to the key corresponds to the force input, and performing a control process corresponding to the force input after the predetermined period of time elapses.