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US 12,755,698 B2Granted
Pixel and display device including the same, and electronic device
AssigneeSamsung Display Co., Ltd.
InventorKyung Hun Lee
Life of this patent
Estimating the term…
Abstract
A pixel includes a first transistor having a first electrode connected to a first power line, a gate electrode connected to a first node, and a second electrode connected to a second node; a light emitting element connected between the second node and a second power line; a second transistor connected between a data line and the first node and having a gate electrode connected to a first scan line; a third transistor connected between the second node and a lead-out line and having a gate electrode connected to a second scan line; and a fourth transistor having a first electrode connected to the first node or the second node, a second electrode connected to the lead-out line or a third power line, and a gate electrode connected to a third scan line.
Claims19
A pixel comprising:
- a first transistor having a first electrode connected to a first power line, a gate electrode connected to a first node, and a second electrode connected to a second node;
- a light emitting element connected between the second node and a second power line;
- a second transistor connected between a data line and the first node and having a gate electrode connected to a first scan line;
- a third transistor connected between the second node and a lead-out line and having a gate electrode connected to a second scan line;
- and
- a fourth transistor having a first electrode connected to the first node or the second node, a second electrode connected to the lead-out line to which a first initialization power source is supplied or a third power line to which a second initialization power source is supplied, and a gate electrode connected to a third scan line,
- wherein each of the first initialization power source and the second initialization power source is set to a voltage that turns off the first transistor when supplied to the first node and turns off the light emitting element when supplied to the second node.
4 more elements
A display device comprising:
- pixels connected to scan lines, data lines, and lead-out lines;
- a scan driver driving the scan lines;
- and
- a data driver driving the data lines,
- wherein at least one of the pixels comprises:
- a first transistor having a first electrode connected to a first power line, a gate electrode connected to a first node, and a second electrode connected to a second node;
- a light emitting element connected between the second node and a second power line;
- a second transistor connected between one of the data lines and the first node and configured to turn on in response to a first scan signal being received from the scan driver;
- a third transistor connected between a lead-out line of the lead-out lines and the second node and configured to turn on in response to a second scan signal being received from the scan driver;
- a fourth transistor having a first electrode connected to the first node or the second node, and a second electrode connected to the lead-out line to which a first initialization power source is supplied or a third power line to which a second initialization power source is supplied, and configured to turn on in response to a third scan signal being received from the scan driver;
- and
- a storage capacitor connected between the first node and the second node,
- wherein each of the first initialization power source and the second initialization power source is set to a voltage that turns off the first transistor when supplied to the first node and turns off the light emitting element when supplied to the second node.
10 more elements
An electronic device comprising:
- a display panel comprising pixels;
- a processor configured to drive the display panel;
- and
- a voltage generation circuit configured to supply a voltage of a driving power source to the display panel,
- wherein at least one of the pixels comprises:
- a first transistor having a first electrode connected to a first power line, a gate electrode connected to a first node, and a second electrode connected to a second node;
- a light emitting element connected between the second node and a second power line;
- a second transistor connected between a data line and the first node and having a gate electrode connected to a first scan line;
- a third transistor connected between the second node and a lead-out line and having a gate electrode connected to a second scan line;
- a fourth transistor having a first electrode connected to the first node or the second node, a second electrode connected to the lead-out line to which a first initialization power source is supplied or a third power line to which a second initialization power source is supplied, and a gate electrode connected to a third scan line;
- and
- a storage capacitor connected between the first node and the second node,
- wherein each of the first initialization power source and the second initialization power source is set to a voltage that turns off the first transistor when supplied to the first node and turns off the light emitting element when supplied to the second node.
10 more elements
Dependencies are inferred from the claim text.