Light emission control driver
Provided herein is a light emission control driver according to an aspect of the present disclosure. The light emission control driver includes a plurality of stages, wherein each of the plurality of stages has a first circuit part configured to receive a first start signal and a second start signal and control a first node and a second node in response to a first clock signal, a third circuit part configured to output a second light emission control signal in response to a first control signal applied to the first node or a second control signal applied to the second node, and an output part configured to output a first light emission control signal in response to the first control signal or the second light emission control signal.
1. A light emission control driver, comprising:
a plurality of stages,
wherein each of the plurality of stages includes:
a first circuit part receiving a first start signal and a second start signal and controlling a first node and a second node in response to a first clock signal;
a third circuit part outputting a second light emission control signal in response to a first control signal supplied to the first node or a second control signal supplied to the second node; and
an output part outputting a first light emission control signal in response to the first control signal or the second light emission control signal.
2. The driver of claim 1 , wherein the first light emission control signal and the second light emission control signal respectively become a first start signal and a second start signal of a next stage.
3. The driver of claim 1 , wherein the first circuit part includes:
a first transistor to which the first start signal is applied; and
a second transistor to which the second start signal is applied,
wherein the first clock signal is applied to a gate electrode of the first transistor and a gate electrode of the second transistor.
4. The driver of claim 1 , further comprising a second circuit part receiving a second clock signal and switched by the first control signal and the second control signal to stabilize signals at the first node and the second node.
5. The driver of claim 4 , wherein the second circuit part includes:
a third transistor including a gate electrode connected to the first node, an input terminal for receiving the second clock signal, and an output terminal connected to a first capacitor; and
a fourth transistor including a gate electrode connected to the second node, an input terminal for receiving the second clock signal, and an output terminal connected to a second capacitor,
wherein the first capacitor is disposed between the first node and the output terminal of the third transistor, and the second capacitor is disposed between the second node and the output terminal of the fourth transistor.
6. The driver of claim 1 , wherein the third circuit part includes:
a fifth transistor switched in accordance with the first control signal applied to the first node; and
a sixth transistor switched in accordance with the second control signal applied to the second node,
wherein a first voltage is applied to an input terminal of the fifth transistor and a second voltage is applied to an input terminal of the sixth transistor.
7. The driver of claim 6 , wherein the fifth transistor is turned on to output the first voltage as the second light emission control signal when a voltage of the first node is a low level voltage.
8. The driver of claim 6 , wherein the sixth transistor is turned on to output the second voltage as the second light emission control signal when a voltage of the second node is a low level voltage.
9. The driver of claim 7 , wherein the second light emission control signal is a signal applied to a third node at which the output terminal of the fifth transistor and the output terminal of the sixth transistor are connected to each other.
10. The driver of claim 9 , further comprising a third capacitor for boosting a voltage of the second node disposed between a third node and the second node.
11. The driver of claim 1 , wherein the output part includes:
a first output transistor outputting a second voltage as the first light emission control signal in response to the first control signal; and
a second output transistor outputting a first voltage as the first light emission control signal in response to the second light emission control signal,
wherein an output terminal of the first output transistor and an output terminal of the second output transistor are connected at a first output terminal from which the first light emission control signal is output.
12. The driver of claim 11 , wherein the second light emission control signal is applied to a gate electrode of the second output transistor to control a switching of the second output transistor.
13. The driver of claim 11 , wherein the first output transistor is turned on to output the second voltage as the first light emission control signal when a voltage of the first node is a low level voltage.
14. The driver of claim 11 , wherein the second output transistor is turned on to output the first voltage as the first light emission control signal when a voltage of the first node is a high level voltage and a voltage of the second node is a low level voltage.
15. The driver of claim 11 , further comprising a fourth capacitor for boosting the voltage of the second node disposed between a gate terminal of the second output transistor and an input terminal thereof.
16. The driver of claim 11 , further comprising a fifth capacitor for boosting the voltage of the first node disposed between the first output terminal and a gate electrode of the first output transistor.
17. The driver of claim 1 , wherein the first clock signal applied to a one stage of the plurality of stages is an inverted signal of a first clock signal applied to a next stage of the one stage.
18. A light emission control driver including a plurality of stages, each stage comprising:
a first circuit part receiving a first start signal and a second start signal and controlling a first node and a second node in response to a first clock signal;
a second circuit part receiving a second clock signal and switched by the first control signal and the second control signal to stabilize signals at the first node and the second node;
a third circuit part outputting a second light emission control signal in response to a first control signal supplied to the first node or a second control signal supplied to the second node; and
an output part outputting a first light emission control signal in response to the first control signal or the second light emission control signal,
wherein the first light emission control signal and the second light emission control signal respectively become a first start signal and a second start signal of a next stage.
19. The driver of claim 18 , wherein the first clock signal applied to a one stage of the plurality of stages is an inverted signal of a first clock signal applied to a next stage of the one stage.