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US 12,315,420 B2Granted
Gate driver and display apparatus including the same
AssigneeSamsung Display Co., Ltd.
InventorsCholho Kim, Gunwoo Yang, Hyunyoung Choi, Jihoon Yang, Yongwoo Lee
Life of this patent
Estimating the term…
Abstract
A gate driver according to an exemplary embodiment of the present inventive concept includes a pull-up-pull-down circuit configured to pull up a gate signal to a high level of a first clock signal in a first duration and configured to pull down the gate signal to a low level of the first clock signal in a second duration, and a pull-down boosting circuit configured to output a first off voltage to the pull-up-pull-down part in the second duration in response to a second clock signal.
Claims19
A gate driver comprising:
- a first clock terminal;
- a second clock terminal;
- a voltage terminal;
- a gate output terminal;
- a pull-up-pull-down sub-circuit connected to the first clock terminal and the gate output terminal;
- and
- a pull-down boosting sub-circuit connected to the first clock terminal, the second clock terminal and the voltage terminal,
- wherein the pull-down boosting sub-circuit comprises a transistor that includes a first electrode directly connected to the voltage terminal, a second electrode directly connected to the first clock terminal and a control electrode connected to the second clock terminal.
5 more elements
A gate driver comprising:
- a first clock terminal;
- a second clock terminal;
- a previous carry terminal;
- a voltage terminal;
- a gate output terminal;
- a first transistor including a control electrode connected to a first node, a first electrode connected to the first clock terminal and a second electrode connected to the gate output terminal;
- a fourth transistor including a control electrode connected to the previous carry terminal, a first electrode connected to the previous carry terminal and a second electrode connected to the first node;
- and
- an eighteenth transistor including a control electrode connected to the second clock terminal, a first electrode directly connected to the voltage terminal and a second electrode directly connected to the first clock terminal.
6 more elements
Dependencies are inferred from the claim text.