| 摘要 |
An organic light emitting display device includes: a scan driver (110) for driving scan lines (S11,...,S1n,S21,...,S2n) and emission control lines (E1,...,En); a data driver (120) for sequentially providing j data signals to each of a plurality of output lines (O1,...,Oi) in each horizontal period; at least one demultiplexer (170) for transmitting the j data signals to j first data lines (D11,..., D1m), the at least one demultiplexer being coupled to the output lines (O1,...,Oi); a plurality of pixels (140) at crossing regions of the scan lines (S11,...,S1n,S21,...,S2n) and second data lines (D21,...,D2m) extending in a direction crossing the scan lines (S11,...,S1n,S21,...,S2n); and at least one common circuit unit (160) for controlling voltages of the second data lines (D21,...,D2m) coupled to the pixels (140) by using a reference voltage (Vref) and an initial voltage (Vint) and the data signals, the at least one common circuit unit (160) being coupled between the first data lines (D11,...,D1m) and the second data lines (D21,...,D2m).
The common circuit (160) comprises a capacitor (C1) coupling a first data line (D1m) to a second date line (D2m). In a threshold voltage detection period, the drive-TFT (M2) of a pixel is diode-connected (M3) and the common circuit capacitor (C1) stores a voltage corresponding to the threshold voltage of the drive-TFT (M2) to perform threshold voltage compensation in a subsequent writing period.
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