Patent ID: 6930671

Claim:
A method for controlling backlights of a mobile communications terminal, comprising steps of: a) detecting various interrupts generated by operations of the mobile communications terminal; b) analyzing the detected interrupts and generating a controlling signal representing a state of the mobile communication terminal; and c) controlling the backlights individually according to the control signal, wherein the step c) includes the steps of: c1) selecting as preset operation mode according to the control signal; and c2) emitting the backlights individually according to the selected preset operation mode, wherein the preset operation mode includes: a first operation mode for turning all backlights off in an initial state; a second operation mode for turning all backlights on in a key input state which represents occurrence of keypad input; a third operation mode for sequentially turning each of backlights in a clockwise direction in a call receiving state which represents receipt of calls; a fourth operation mode for sequentially turning backlights on and off in a downward direction in a file downloading state which represents downloading files; a fifth operation mode for sequentially turning backlights on and off in a upward direction in an Internet state which represents access of Internet; and a sixth operation mode for randomly turning backlights on and off in an ending state which represents turning off of the mobile communication terminal and a call drop state which represents call dropping.