to be approximately linear as perceived by the user in actual practice an inverter current level or regulator current level is stored in lut 186 corresponding to each brightness setting of table 1 when the user selects a particular brightness setting for example brightness setting 2 then a current value or a number corresponding to a current value which produces 28 4 nits is sent to inverter regulator 131 inverter 131 responds by supplying the specified amount of current to ccfl 132 thus causing ccfl 132 to output 28 4 nits of light across display 130 0021 fig2 is a flowchart describing the operation of information handling system 100 in a scenario where brightness settings are adjusted for display 130 in a non linear fashion from brightness level to brightness level a request to adjust the brightness setting of display device 130 is detected as indicated by block 202 this request can be made by the user in several different ways one way is for the user to press the control page up or control page down keys after the request is detected lookup table 186 which contains values related to the brightness level for each of the possible settings is.