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US 2026/0229175 A1Published application
Pixel circuit, display device including the pixel circuit, and electronic device including the display device
AssigneeSamsung Display Co., Ltd.
InventorEOK SU KIM
Life of this patent
Estimating the term…
Abstract
A pixel circuit may include a fourth transistor and a boosting capacitor. The fourth transistor may include a gate electrode receiving a first emission signal, a first electrode receiving a first power supply voltage, a second electrode connected to a second node, and a back gate electrode connected to a fourth node. The boosting capacitor may include a first electrode connected to the fourth node and a second electrode connected to the second node.
Claims20
A pixel circuit, comprising:
- a first transistor including a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node;
- a second transistor including a gate electrode receiving a data write gate signal, a first electrode connected to a data line transmitting a data voltage, and a second electrode connected to the first node;
- a third transistor including a gate electrode receiving a reset gate signal, a first electrode receiving a reference voltage, and a second electrode connected to a fourth node;
- a fourth transistor including a gate electrode receiving a first emission signal, a first electrode receiving a first power supply voltage, a second electrode connected to the second node, and a back gate electrode connected to the fourth node;
- a boosting capacitor including a first electrode connected to the fourth node and a second electrode connected to the second node;
- and
- a light emitting element including an anode electrode connected to a fifth node and a cathode electrode receiving a second power supply voltage.
4 more elements
A display device, comprising:
- a display panel including a pixel circuit;
- and
- a display panel driver configured to drive the display panel,
- wherein the pixel circuit includes:
- a first transistor including a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node;
- a second transistor including a gate electrode receiving a data write gate signal, a first electrode connected to a data line transmitting a data voltage, and a second electrode connected to the first node;
- a third transistor including a gate electrode receiving a reset gate signal, a first electrode receiving a reference voltage, and a second electrode connected to a fourth node;
- a fourth transistor including a gate electrode receiving a first emission signal, a first electrode receiving a first power supply voltage, a second electrode connected to the second node, and a back gate electrode connected to the fourth node;
- a boosting capacitor including a first electrode connected to the fourth node and a second electrode connected to the second node;
- and
- a light emitting element including an anode electrode connected to a fifth node, and a cathode electrode receiving a second power supply voltage.
8 more elements
An electronic device, comprising:
- a display panel including a pixel circuit;
- and
- a display panel driver configured to drive the display panel,
- wherein the pixel circuit includes:
- a first transistor including a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node;
- a second transistor including a gate electrode receiving a data write gate signal, a first electrode connected to a data line transmitting a data voltage, and a second electrode connected to the first node;
- a third transistor including a gate electrode receiving a reset gate signal, a first electrode receiving a reference voltage, and a second electrode connected to a fourth node;
- a fourth transistor including a gate electrode receiving a first emission signal, a first electrode receiving a first power supply voltage, a second electrode connected to the second node, and a back gate electrode connected to the fourth node;
- a boosting capacitor including a first electrode connected to the fourth node and a second electrode connected to the second node;
- and
- a light emitting element including an anode electrode connected to a fifth node, and a cathode electrode receiving a second power supply voltage.
8 more elements
Dependencies are inferred from the claim text.