Display device for reducing characteristic degradation of a pixel, and driving method thereof
AssigneeSamsung Display Co., Ltd.
InventorsJong Soo Kim, Woo Chul Kim, Hyun Su Kim, Young Min Bae
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Abstract
In a display device including pixels that are coupled to data lines, that are supplied with a data signal during a display period, and that are configured to emit light corresponding to the data signal during a bias period, the display device includes a source capacitor coupled to each of the data lines, and a data driver configured to supply the data signal during the display period, to supply a bias signal during a first period in the bias period, and to not supply the bias signal during a second period.
Claims20
A display device comprising:
- pixels that are coupled to data lines, that are supplied with a data signal during a display period, and that are configured to emit light corresponding to the data signal during the display period and a bias period;
- a source capacitor coupled to each of the data lines;
- and
- a data driver configured to supply the data signal during the display period, to supply a bias signal during a first period in the bias period, and to not supply the bias signal during a second period, the first period being after the display period and before the second period,
- wherein the bias signal has a voltage level that is higher than that of the data signal, and is supplied to a source electrode or a drain electrode of a driving transistor of a respective one of the pixels via a switching transistor of the respective one of the pixels that is configured to receive a scan signal.
A method for driving a display device comprising pixels that are coupled to data lines and that are supplied with a data signal during a display period, a source capacitor coupled to each of the data lines, and a data driver that is configured to supply a bias signal during a first period in a bias period, and that is configured to not supply the bias signal during a second period, the method comprising:
- supplying, by the data driver, the data signal to the data lines during the display period;
- supplying the bias signal to the data lines during the first period in the bias period, the first period being after the display period and before the second period;
- and
- stopping the supply of the bias signal to the data lines during the second period, and
- wherein the pixels are configured to emit light corresponding to the data signal during the display period and the bias period, and
- wherein the bias signal has a voltage level that is higher than that of the data signal, and is supplied to a source electrode or a drain electrode of a driving transistor of a respective one of the pixels via a switching transistor of the respective one of the pixels that is configured to receive a scan signal.
Dependencies are inferred from the claim text.