Pixel Circuit and Method for Driving the Same, Display Apparatus
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Abstract
Pixel circuit, driving method therefor and display apparatus are provided. The pixel circuit includes driving transistor, light-emitting device, storage capacitor, gating module, compensating module and switching module. First end of storage capacitor is connected to gate electrode of driving transistor, and second end thereof is connected to first electrode of driving transistor. Compensating module includes reset sub-module having output terminal connected to second electrode of driving transistor and configured to charge first electrode of driving transistor in reset stage to store threshold voltage of driving transistor in storage capacitor, and voltage dividing sub-module having first terminal connected to first electrode of driving transistor and second terminal connected to high-level input terminal such that voltage dividing sub-module is connected in series with storage capacitor. According to the invention, the effect of threshold voltage and IR drop on uniformity of display can be reduced, which improves display effect.
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Citations
32 Claims
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1-12. -12. (canceled)
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13. A pixel circuit, comprising a driving transistor, a light-emitting device, a storage capacitor, a gating module, a compensating module and a switching module, wherein
the gating module is connected between a data line and a gate electrode of the driving transistor; -
a first end of the storage capacitor is connected to the gate electrode of the driving transistor, and a second end of the storage capacitor is connected to a first electrode of the driving transistor; the compensating module comprises; a reset sub-module having an output terminal connected to a second electrode of the driving transistor and configured to charge the first electrode of the driving transistor in a reset stage so as to store a threshold voltage of the driving transistor in the storage capacitor, and a voltage dividing sub-module having a first terminal connected to the first electrode of the driving transistor and a second terminal connected to a high-level input terminal, such that the voltage dividing sub-module is connected in series with the storage capacitor; the switching module is connected with the high-level input terminal and the driving transistor, respectively, and is configured to allow the high-level input terminal and the first electrode of the driving transistor to be electrically connected with each other in a light emitting stage; and the light-emitting device is configured to emit light under the driving of the driving transistor. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification