| CPC G09G 3/3291 (2013.01) [G09G 3/32 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/041 (2013.01)] | 20 Claims |
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1. A display device comprising:
at least one sensing pixel including a sensing pixel circuit having a driving transistor in which a current generated according to temperature varies and a non-light emitting diode connected to the sensing pixel circuit, the at least one sensing pixel being provided in a display panel;
a sensing unit including a current sensing circuit having a sensing line which is connected to the sensing pixel circuit and has a current of the sensing pixel flowing therein, the sensing unit sensing a current generated in the driving transistor to flow in the sensing line by a predetermined repetition number of times, the sensing unit generating sensing data corresponding to the sensed current; and
a temperature output unit to calculate a temperature of the display panel based on the sensing data,
wherein, in a first sensing mode, a first sensing signal is applied to the sensing pixel, and
wherein the first sensing signal includes a sensing data voltage, a first control signal, a second control signal, a third control signal, and a fourth control signal.
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11. A temperature sensing method of a display device, the temperature sensing method comprising steps of:
applying sensing signals to at least one sensing pixel including a sensing pixel circuit having a driving transistor in which a current generated according to temperature varies and a non-light emitting diode connected to the sensing pixel circuit, the at least one sensing pixel being provided in a display panel;
initializing a sensing line connected to the sensing pixel;
sensing a current generated in the driving transistor to flow in the sensing line by a predetermined repetition number of times;
generating sensing data corresponding to the sensed current; and
calculating a temperature of the display panel based on the sensing data.
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