Patent ID: 6373397
Filing Date: 2002-04-16
Classification: H04M,H04W,Y02D

Abstract:
An apparatus for controlling back lighting in a mobile terminal comprising:a flip switch for detecting at least one of open and closed states of a flip cover; a function selection key separately operated regardless of the open and closed states of the flip cover, wherein the function selection key is provided on the mobile terminal for applying a key input signal to the controller through the flip switch and, wherein the function select key is provided on an outer side of the flip cover; a first back light for supplying a light source to a liquid crystal display; a second back light for supplying a light source to a key pad; and a controller for driving the first and second back lights if the flip cover is opened and driving the first back light and not driving the second back light if the function selection key is input, wherein the flip switch includes a first pin for supplying a constant voltage to a main board of the main body and a second pin connected to a ground terminal of the first pin, and the flip switch is configured to electrically connect the first and second pins with each other if the flip cover is closed and the function selection key is configured to electrically connect the first pin with the second pin at different resistance values in accordance with a key selected by a user.