| CPC G09G 3/006 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/045 (2013.01); G09G 2320/048 (2013.01); G09G 2330/028 (2013.01); G09G 2330/12 (2013.01)] | 18 Claims |
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1. A display device comprising:
a display panel including a sensing line, a data line, a pixel connected to the sensing line and the data line, and a first driving voltage line connected to the pixel, wherein the pixel includes a light emitting element connected between the sensing line and the first driving voltage line;
a sensing driver configured to sense a sensing voltage through the sensing line during a sensing period; and
a voltage generator configured to supply a first driving voltage to the first driving voltage line,
wherein the pixel further includes:
a first transistor connected between a second driving voltage line, to which a second driving voltage is applied, and the light emitting element,
wherein, during the sensing period, a gate electrode of the first transistor receives a sensing data voltage through the data line,
wherein, during the sensing period, the sensing line is connected to a first node connecting the light emitting element and the first transistor and outputs a potential of the first node as the sensing voltage,
wherein, during the sensing period, the voltage generator varies the first driving voltage over time based on a change in the sensing voltage, and
wherein, during the sensing period, the first driving voltage is varied to have a voltage level substantially equal to the sensing voltage based on a change of the potential of the first node.
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