Display device and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsYOUNG WAN SEO, Min Kyu Woo, An Su Lee, Cheol Gon Lee
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Abstract
In a display device including pixels, each of the pixels may include: a first transistor coupled to a first node, a first power supply voltage line, and a second node; and a light-emitting diode coupled to the second node and a second power supply voltage line. Each image frame may include at least two emission enable periods for the light-emitting diode, and at least one emission inhibit period between the at least two emission enable periods.
Claims24
A display device comprising pixels, wherein each of the pixels comprises:
- a first transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power supply voltage line, and a second electrode coupled to a second node;
- and
- a light-emitting diode including an anode electrode coupled to the second node, and a cathode electrode coupled to a second power supply voltage line,
- wherein each of image frames includes at least two emission enable periods for the light-emitting diode, and at least one emission inhibit period between the at least two emission enable periods.
A method of driving a display device comprising pixels, each of the pixels including a driving current path including a first power supply voltage line, a first electrode and a second electrode of a first transistor, an anode electrode and a cathode electrode of a light-emitting diode, and a second power supply voltage line, the method comprising:
- writing, in a data voltage write operation, a data voltage to a first electrode of a first capacitor coupled to a gate electrode of the first transistor, wherein a first power supply voltage applied to the first power supply voltage line is less than or equal to a second power supply voltage applied to the second power supply voltage line;
- setting, in a first emission enable operation of the light-emitting diode, the first power supply voltage to be greater than the second power supply voltage;
- setting, in an emission inhibit operation of the light-emitting diode, the first power supply voltage to be less than or equal to the second power supply voltage;
- and
- setting, in a second emission enable operation of the light-emitting diode, the first power supply voltage to be greater than the second power supply voltage,
- wherein, in each of image frames, the data voltage write operation, the first emission enable operation, the emission inhibit operation, and the second emission enable operation are sequentially performed.
A method of driving a display device comprising pixels, each of the pixels including a driving current path including a first power supply voltage line, a first electrode and a second electrode of a first transistor, an anode electrode and a cathode electrode of a light-emitting diode, and a second power supply voltage line, the method comprising:
- writing, in a data voltage write operation, a data voltage to a first electrode of a first capacitor coupled to a gate electrode of the first transistor, wherein a first power supply voltage applied to the first power supply voltage line is less than or equal to a second power supply voltage applied to the second power supply voltage line;
- applying, in a first emission enable operation of the light-emitting diode, a first control voltage to a first control line coupled to a second electrode of the first capacitor, and setting the first power supply voltage to be greater than the second power supply voltage;
- setting, in an emission inhibit operation of the light-emitting diode, the first control voltage to be greater than the first control voltage in the first emission enable operation;
- and
- setting, in a second emission enable operation of the light-emitting diode, the first control voltage to be less than the first control voltage of the emission inhibit operation, and the first power supply voltage to be greater than the second power supply voltage,
- wherein, in each of image frames, the data voltage write operation, the first emission enable operation, the emission inhibit operation, and the second emission enable operation are sequentially performed.
A display device comprising pixels, wherein each of the pixels comprises:
- a first transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power supply voltage line, and a second electrode coupled to a second node;
- a first capacitor including a first electrode coupled to the first node, and a second electrode coupled to a first control line;
- and
- a light-emitting diode including an anode electrode coupled to the second node, and a cathode electrode coupled to a second power supply voltage line,
- wherein, in each of image frames, a data voltage write operation, a first emission enable operation, an emission inhibit operation, and a second emission enable operation are sequentially performed,
- wherein, during at least the first emission enable operation and the second emission enable operation, a first control voltage is applied to the first control line to turn on the first transistor,
- wherein, during the first emission enable operation and the second emission enable operation, a first power supply voltage applied to the first power supply voltage line is greater than a second power supply voltage applied to the second power supply voltage line, and
- wherein, during the emission inhibit operation, the first power supply voltage is less than or equal to the second power supply voltage.
Dependencies are inferred from the claim text.