Patent ID: 7327097
Filing Date: 2008-02-05
Classification: H05B

Abstract:
1. A light module, suitable for use in a display to serve as a light source, the light module comprising: a plurality of light units; a control unit, implemented with an information of a first relation table of a luminance of the light units versus a using accumulation time and a second relation table of the luminance of the light units versus an operation current-power, and a clocking unit to count a total using time for the light module; and a power-control providing unit, coupled with the control unit and respectively supplying a current-power to each one of the light units, wherein the power-control providing unit comprises: an automatic luminance adjustment unit, coupled with the control unit in operation; and a power inverter, coupled between the light units and automatic luminance adjustment unit for respectively providing the current-power to each one of the light units, wherein, for an individual replaced light unit, the individual current-power is adjusted in the power-control providing unit to produce a substantially equal luminance with the other light units, according to the total using time, the first relation table and the second relation table.