Patent ID: 11961481
Assignee: LX SEMICON CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A pixel driving device comprising:
an amplifier configured to provide a data voltage to a pixel through a data line connected with the pixel of a panel; and
a first switch connected between the pixel and an output terminal of the amplifier, and
a second switch connected to a detection circuit at the output terminal of the amplifier,
wherein, while the first switch is closed, the amplifier receives a source voltage through a first input terminal thereof and provides the data voltage to the pixel through the data line connected to an output terminal thereof,
wherein, while the first switch is open, the amplifier receives a reference voltage through the first input terminal thereof, receives the voltage of the light emitting diode included in the pixel sensed through the data line, through a second input terminal thereof, and outputs, to the output terminal, a comparison result between the reference voltage and the voltage of the light emitting diode,
wherein, while the second switch is closed, the comparison result between the reference voltage and the voltage of the light emitting diode, outputted from the output terminal of the amplifier, is transmitted to the detection circuit through the second switch,
wherein the pixel driving device includes a first driving circuit and a second driving circuit comprising the amplifier, the first switch and the second switch, respectively, and
wherein the second switch of the first driving circuit and the second switch of the second driving circuit are connected to each other and to the detection circuit.