Abstract: A method and apparatus for providing a help function of a portable terminal are provided. The method for providing help of a portable terminal preferably includes: selecting a recommended help based on weights of respective help items set according to usage frequencies of respective functions included in the portable; displaying the selected recommended help; and reducing a weight of a help item corresponding to the selected recommended help by a preset size. The method and the apparatus apply a high weight to an added function, a changed function, and a function not used by a user, and outputs a selected recommended help (tip) based on the weight that allow the user to conveniently pick up and suitably use various functions of the portable terminal.

Abstract: An apparatus and method for controlling brightness of a backlight unit in an electronic apparatus is provided. The apparatus includes a solar light generator and a controller. The solar light generator generates a current in proportion to an amount of light. The controller determines the brightness of the backlight unit according to the current. Therefore, a contradiction that an illuminance sensor which causes another current consumption is used in order to control the backlight unit according to an ambient light amount of an electronic apparatus may be resolved.