| CPC G09G 3/3266 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/0262 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01)] | 12 Claims |
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1. A display panel, comprising:
a plurality of pixel circuits arranged in an array; and
a plurality of scan lines, wherein each of the plurality of scan lines is configured to control charging of a corresponding row of pixel circuits in the array, an N-th scan line of the plurality of scan lines is configured to control charging of a N-th row of pixel circuits in the array, a (N+1)-th scan line is configured to control charging of a (N+1)-th row of pixel circuits of the plurality of scan lines, N being a positive integer;
wherein each pixel circuit in the N-th row of pixel circuits comprises:
a driving transistor, wherein a first electrode of the driving transistor is electrically connected to a first power line, and a second electrode of the driving transistor is electrically connected to a second power line;
a writing transistor, wherein a first electrode of the writing transistor is electrically connected to a data line, a second electrode of the writing transistor is electrically connected to a gate of the driving transistor, and a gate of the writing transistor is electrically connected to the N-th scan line;
a sensing transistor, wherein a first electrode of the sensing transistor is electrically connected to a sensing line, a second electrode of the sensing transistor is electrically connected to the second electrode of the driving transistor, and a gate of the sensing transistor is electrically connected to the (N+1)-th scan line;
a light-emitting component, wherein an anode of the light-emitting component is electrically connected to the second electrode of the driving transistor, and a cathode of the light-emitting component is electrically connected to the second power line;
a storage capacitor, wherein a terminal of the storage capacitor is electrically connected to the gate of the driving transistor, and another terminal of the storage capacitor is electrically connected to the second electrode of the driving transistor;
a sensing capacitor, wherein a terminal of the sensing capacitor is electrically connected to the sensing line, and another terminal of the sensing capacitor is grounded;
a first switch, wherein a terminal of the first switch is electrically connected to the sensing line, another terminal of the first switch is electrically connected to a reference voltage line, and a control terminal of the first switch is electrically connected to a first control line; and
a second switch, wherein a terminal of the second switch is electrically connected to the sensing line, another terminal of the second switch is electrically connected to an input terminal of an analog-to-digital converter, and a control terminal of the second switch is electrically connected to a second control line,
wherein in a pre-charging stage of each of the plurality of pixel circuits, the writing transistor, the sensing transistor, and the first switch are turned on, a detection voltage is written into the gate of the driving transistor, and a pre-charging voltage is written into the second electrode of the driving transistor, and
in a lifting stage of each of the plurality of pixel circuits, the writing transistor is turned on, the sensing transistor is turned off, and a potential of the second electrode of the driving transistor is lifted by the storage capacitor.
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