Organic light emitting display device and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorGil-Jae Lee
Life of this patent
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Abstract
An organic light emitting display device includes a display panel including a pixel at an intersection of a data line, a feedback line, and a scan line; a data driver configured to provide a data signal to the pixel through the data line; and a sensing unit configured to generate a reference voltage based on the data signal, to generate first sensing data based on a sensing current that flows through the feedback line in response to the reference voltage, and to generate second sensing data by digital-converting the reference voltage.
Claims20
An organic light emitting display device comprising:
- a display panel comprising a pixel at an intersection of a data line, a feedback line, and a scan line;
- a data driver configured to provide a data signal to the pixel through the data line to enable the pixel to emit light according to the data signal;
- a sensing unit configured to generate a reference voltage based on the data signal, to generate first sensing data based on a sensing current that flows through the feedback line in response to the reference voltage, and to generate second sensing data by digital-converting the reference voltage;
- and
- a timing controller configured to generate compensation data based on the first sensing data and the second sensing data.
A method of driving an organic light emitting display device comprising a pixel at an intersection of a data line, a feedback line, and a scan line, the method comprising:
- providing a data signal to the pixel through the data line to enable the pixel to emit light according to the data signal;
- generating a reference voltage based on the data signal;
- generating second sensing data for the reference voltage;
- generating first sensing data based on a sensing current that flows through the feedback line in response to the reference voltage;
- and
- generating compensation data based on the first sensing data and the second sensing data.
Dependencies are inferred from the claim text.