Patent ID: 9318074
Filing Date: 2016-04-19
CPC Classification: G06F,G09G,H04M,H04W,Y02D

Claim Text:
1. A method for controlling brightness of a touch display unit of a portable terminal, the method comprising: displaying on the touch display unit a brightness step selection screen for selecting one of a plurality of selectable brightness steps, the plurality of selectable brightness steps corresponding to incremental levels of brightness of the touch display unit; while continuing to display the brightness step selection screen, receiving a single selection user input to select a brightness step among the plurality of selectable brightness steps; while continuing to display the brightness step selection screen and in direct response to the receiving of the single selection user input of one of the plurality of selectable brightness steps, visually distinguishing the selected brightness step among the plurality of selectable brightness steps on the brightness step selection screen; and while continuing to display the brightness step selection screen and in direct response to the receiving of the single selection user input of one of the plurality of selectable brightness steps, regulating the brightness of the touch display unit to correspond to the selected brightness step, wherein the visually distinguishing of the selected brightness step and the regulating of the brightness of the touch display unit at least partly occur at the same time, and wherein the regulating of the brightness of the touch display unit according to the selected brightness step comprises, when there is at least one intervening brightness step between a previously selected brightness step and the selected brightness step, regulating the brightness of the touch display unit from the previously selected brightness step to the selected brightness step without incrementing through the at least one intervening brightness step.