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US 10,950,176 B2Granted
Pixel compensation circuit, driving method, electroluminescent display panel and display device
AssigneesChengdu Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsTaoran Zhang, Zailong Mo, Da Zhou, Ke Dai, Yiyang Zhang
Life of this patent
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Abstract
The present disclosure discloses a pixel compensation circuit, a driving method, an electroluminescent display panel and a display device. Due to the interaction of a data writing circuit, a voltage input circuit, a discharge control circuit, a storage circuit, a conduction control circuit and a driving circuit, the compensation for a threshold voltage of the driving circuit and IR Drop of a first power signal may be realized by a simple structure and a simple time sequence.
Claims15
A pixel compensation circuit, comprising:
- a data writing circuit electrically connected with a driving circuit and configured to provide a data signal for a control end of the driving circuit at a reset stage and a threshold compensation stage;
- a voltage input circuit electrically connected with the driving circuit and configured to provide a first power signal for an input end of the driving circuit at the reset stage and a light emitting stage;
- a storage circuit electrically connected with the driving circuit, a connection node, and configured to store a voltage of the input end of the driving circuit and a voltage of the connection node;
- a discharge control circuit electrically connected with the driving circuit, the connection node and a light emitting device, and configured to reset the voltage of the connection node and a voltage of a first electrode of the light emitting device at the reset stage and controlling the driving circuit to write a threshold voltage of the driving circuit into the input end of the driving circuit at the threshold compensation stage;
- a conduction control circuit electrically connected with the driving circuit, the connection node, and configured to conduct the connection node and the control end of the driving circuit at the light emitting stage;
- and
- the driving circuit electrically connected with the light emitting device and configured to generate a driving current flowing towards the first electrode of the light emitting device in the light emitting stage so as to drive the light emitting device to emit light.
4 more elements
Dependencies are inferred from the claim text.