| CPC G09G 3/3233 (2013.01) [G09G 3/2092 (2013.01); G09G 3/3291 (2013.01); G09G 2310/061 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/021 (2013.01)] | 12 Claims |
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1. A display device comprising:
a display panel comprising a plurality of pixels;
a sensing circuit to measure a sensing current value of each of the pixels during a blank period, wherein a frame period comprises an active period and the blank period following the active period, wherein the sensing circuit is to measure the sensing current value based on an initialization voltage supplied through a sensing line to the pixels during the active period and a first blank period of the blank period and a reference voltage supplied through the sensing line to the pixels during a second blank period of the blank period, the first period being adjacent the active period, and the initialization voltage being different from the reference voltage;
a compensator to calculate a deterioration weight based on the sensing current value and a reference current value; and
a controller to generate output image data by applying the deterioration weight to input image data,
wherein each of the pixels further comprises:
a first transistor comprising a control terminal connected to a first node, a first terminal connected to a first power source, and a second terminal connected to a second node;
a second transistor comprising a control terminal connected to a first scan line, a first terminal connected to a data line, and a second terminal connected to the first node;
a third transistor comprising a control terminal connected to a second scan line, a first terminal connected to the second node, and a second terminal connected to the sensing line; and
an organic light emitting diode comprising a first terminal connected to the second node and a second terminal connected to a second power source,
wherein the blank period comprises the first blank period and the second blank period following the first blank period, and
wherein a turn-on voltage for turning on the second transistor is provided to the first scan line during the first blank period, and a turn-off voltage for turning off the second transistor is provided to the first scan line during the second blank period.
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