Pixel circuit and display device including the same
AssigneeSamsung Display Co., Ltd.
InventorGunwoo Yang
Life of this patent
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Abstract
A pixel circuit may include a light-emitting element, a driving transistor which applies a driving current to the light-emitting element, a storage capacitor connected to a control electrode of the driving transistor, a data voltage-applying transistor which applies a data voltage to the storage capacitor, an emission transistor which connects the driving transistor to the light-emitting element in response to an emission signal, and a bias capacitor disposed between a first electrode of the driving transistor and a control electrode of the emission transistor.
Claims22
A pixel circuit comprising:
- a light-emitting element;
- a driving transistor which applies a driving current to the light-emitting element and includes a control electrode and a first electrode;
- a storage capacitor connected to the control electrode of the driving transistor;
- a data voltage-applying transistor which is directly connected to the storage capacitor and directly applies a data voltage to the storage capacitor;
- an emission transistor which connects the driving transistor to the light-emitting element in response to an emission signal and includes a control electrode;
- and
- a bias capacitor disposed between the first electrode of the driving transistor and the control electrode of the emission transistor.
A pixel circuit comprising:
- a light-emitting element;
- a driving transistor which applies a driving current to the light-emitting element and includes a control electrode and a first electrode;
- a storage capacitor connected to the control electrode of the driving transistor;
- a data voltage-applying transistor which is directly connected to the storage capacitor and directly applies a data voltage to the storage capacitor;
- an emission transistor which connects the driving transistor to the light-emitting element in response to an emission signal;
- and
- a bias capacitor including a first electrode which receives a bias signal and a second electrode connected to the first electrode of the driving transistor.
A display device comprising:
- a display panel including pixels, each of the pixels comprising:
- a light-emitting element;
- a driving transistor which applies a driving current to the light-emitting element and includes a control electrode and a first electrode;
- a storage capacitor connected to the control electrode of the driving transistor;
- a data voltage-applying transistor which directly connected to the storage capacitor and directly applies a data voltage to the storage capacitor;
- an emission transistor which connects the driving transistor to the light-emitting element in response to an emission signal;
- and
- a bias capacitor connected to the first electrode of the driving transistor;
- a gate driver which provides a gate signal to the pixels;
- a data driver which provides the data voltage to the pixels;
- an emission driver which provides the emission signal to the pixels;
- and
- a driving controller which controls the gate driver, the data driver, and the emission driver.
Dependencies are inferred from the claim text.