PIXEL, DISPLAY DEVICE INCLUDING THE SAME, AND DRIVING METHOD THEREOF
First Claim
1. A display device comprising:
- a plurality of pixels including;
a first capacitor connected between a data line and a first node;
a switching transistor connecting the first node and a second node;
a first light emitting transistor transmitting a first power source voltage to the second node;
a driving transistor having one electrode connected to the second node and controlling a driving current flowing to an organic light emitting diode (OLED); and
a reference voltage transistor transmitting a reference voltage to the first node, wherein, when the first power source voltage is applied to the second node through the first light emitting transistor such that a light emitting step in which the organic light emitting diode (OLED) emits light is simultaneously performed in a plurality of pixels, the switching transistor is turned off and the reference voltage transistor is turned on such that the reference voltage is transmitted to the first node, and a data voltage corresponding to a scan signal of a gate-on voltage respectively corresponding to a plurality of pixels is stored to the first capacitor.
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Accused Products
Abstract
A display device includes a plurality of pixels including a first capacitor connected between a data line and a first node, a switching transistor connecting the first node and a second node, a first light emitting transistor transmitting a first power source voltage to the second node, a driving transistor having one electrode connected to the second node and controlling a driving current flowing to an organic light emitting diode (OLED), and a reference voltage transistor transmitting a reference voltage to the first node, wherein, when the first power source voltage is applied to the second node through the first light emitting transistor such that a light emitting step in which the OLED emits light is simultaneously performed in a plurality of pixels.
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Citations
34 Claims
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1. A display device comprising:
a plurality of pixels including; a first capacitor connected between a data line and a first node; a switching transistor connecting the first node and a second node; a first light emitting transistor transmitting a first power source voltage to the second node; a driving transistor having one electrode connected to the second node and controlling a driving current flowing to an organic light emitting diode (OLED); and a reference voltage transistor transmitting a reference voltage to the first node, wherein, when the first power source voltage is applied to the second node through the first light emitting transistor such that a light emitting step in which the organic light emitting diode (OLED) emits light is simultaneously performed in a plurality of pixels, the switching transistor is turned off and the reference voltage transistor is turned on such that the reference voltage is transmitted to the first node, and a data voltage corresponding to a scan signal of a gate-on voltage respectively corresponding to a plurality of pixels is stored to the first capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of driving a display device respectively including a plurality of pixels including a first capacitor connected between a data line and a first node, a switching transistor connecting the first node and a second node, a first light emitting transistor transmitting a first power source voltage to the second node, a driving transistor having one electrode connected to the second node and controlling a driving current flowing to the organic light emitting diode (OLED), and a reference voltage transistor transmitting a reference voltage to the first node, the method comprising:
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a scan step in which the data voltage transmitted through the data line is stored to the first capacitor when the switching transistor is turned off and the scan signal of the gate-on voltage is transmitted to the reference voltage transistor; and a light emitting step in which the first power source voltage is applied to the second node through the first light emitting transistor such that an organic light emitting diode (OLED) emits light, such that each light emitting step of the plurality of pixels is a simultaneous period, and the scan step and the light emitting step are temporally overlapped with each other. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A pixel comprising:
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a first capacitor including one electrode applied with a data voltage and the other electrode connected to a first node; a reference voltage transistor including a gate electrode applied with a scan signal, one electrode connected to a reference voltage, and the other electrode connected to the first node; a first switching transistor including a gate electrode applied with a compensation control signal, one electrode connected to the first node, and the other electrode connected to a second node; a first light emitting transistor including a gate electrode applied with a light emitting signal, one electrode connected to a first power source voltage, and the other electrode connected to the second node; a driving transistor including a gate electrode connected to a third node, one electrode connected to the second node, and the other electrode connected to a fourth node; a compensation transistor including a gate electrode applied with the compensation control signal, one electrode connected to the third node, and the other electrode connected to the fourth node; and a second capacitor including one electrode connected to the third node and the other electrode connected to the first power source voltage. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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Specification