Abstract:
A timing controller includes an input signal processor that receives a data enable signal and a frame frequency information signal, generates one of a first internal data enable signal having a first frame frequency and a second internal data enable signal having a second frame frequency, the first and second frame frequencies being selected based on the frame frequency information signal. A gate control signal output unit generates and outputs a first gate control signal based on the first internal data enable signal or a second gate control signal based on the second internal data enable signal. A data control signal output unit generates and outputs a first data control signal based on the first internal data enable signal or a second data control signal based on the second internal data enable signal. The pulse widths of the first and second internal data enable signals are the same.
Abstract:
An organic light emitting display device having a data line that is used for sending data voltage signals to pixels from a data driver as well as send sensor signals for detecting threshold voltage levels of driving transistors in the pixels at different times. By using the same data line to transmit the data voltage signals and the sensor signals, the number of signal lines in the organic light emitting display can be reduced. The data driver also includes switches for selectively coupling the data line to a driver unit or an analog to digital converter (ADC) unit.