Patent ID: 7362322
Filing Date: 2008-04-22
Classification: G09G,H01L,H05B

Abstract:
1. A display apparatus, comprising: a plurality of pixels arranged in a matrix: a plurality of light-emitting electroluminescent devices corresponding to the pixels, the light-emitting electroluminescent devices being driven by current; a plurality of driving elements connected to the light-emitting electroluminescent devices, the driving elements supplying current for driving the light-emitting electroluminescent devices; a plurality of power source lines each connected to a corresponding light-emitting electroluminescent device through a corresponding driving element; a power source unit that supplies, through the power source lines, a power source voltage to the driving elements so that the driving elements can supply current to the light-emitting electroluminescent devices; a current level measuring device that measures a current level flowing to or from at least one of the light-emitting electroluminescent devices and outputting measurements accordingly; a voltage adjusting unit that, according to the measurements from the measuring device, adjusts the power source voltage supplied from the power source unit; and a plurality of data signal lines that supply data signals, the driving elements being configured from a plurality of thin film transistors, each thin film transistor including a gate, a source, and a drain, the data signal lines supplying data signals to the gates of the thin film transistors, the power source lines supplying the power source voltage to the sources or the drains of the thin film transistors.