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US 10,593,282 B2Granted
Display device
AssigneeSamsung Display Co., Ltd.
InventorKeunwoo Kim
Life of this patent
Estimating the term…
Abstract
A k-th driving stage includes a first pull-down transistor. The first pull-down transistor includes a first control electrode receiving a second control signal activated after the k-th gate signal is output, a second control electrode receiving the switching signal synchronized with a clock signal, an input electrode receiving a first discharge voltage, and an output electrode connected to the output electrode of the first output transistor.
Claims20
A display device comprising:
- a display panel comprising a plurality of gate lines;
- and a gate driving circuit comprising a plurality of driving stages configured to apply gate signals to the gate lines, a k-th (k is a natural number equal to or greater than 2) driving stage from among the driving stages comprising:
- a first output transistor comprising a control electrode connected to a first node, an input electrode configured to receive a clock signal and an output electrode configured to output a k-th gate signal from among the gate signals;
- a capacitor connected between the output electrode of the first output transistor and the control electrode of the first output transistor;
- a first control transistor configured to output a first control signal to the first node before the k-th gate signal is output;
- a first inverter transistor configured to output a switching signal to a second node;
- and a first pull-down transistor comprising a first active part, a first control electrode configured to receive a second control signal activated after the k-th gate signal is output, a second control electrode connected to the second node, an input electrode configured to receive a first discharge voltage, and an output electrode connected to the output electrode of the first output transistor, wherein the first active part is between the first control electrode and the second control electrode in a cross-sectional view of the first pull-down transistor.
4 more elements
A display device comprising:
- a display panel comprising a plurality of gate lines;
- and a gate driving circuit comprising a plurality of driving stages electrically connected to the gate lines, respectively, a k-th (k is a natural number equal to or greater than 2) driving stage from among the driving stages comprising:
- an output circuit configured to output a k-th gate signal and a k-th carry signal in response to a voltage of a first node, the k-th gate signal and the k-th carry signal being generated according to a dock signal;
- a first control circuit configured to control the voltage of the first node;
- a second control circuit configured to apply a switching signal generated according to the dock signal to a second node;
- and a pull-down circuit configured to lower a voltage of the output circuit after the k-th gate signal and the k-th carry signal are output, wherein the pull-down circuit comprises at least one pull-down transistor, each of the at least one pull-down transistor comprising an active part, a first control electrode configured to receive a first control signal activated after the k-th gate signal is output, a second control electrode configured to receive the switching signal, an input electrode configured to receive one of first and second discharge voltages having different levels and an output electrode connected to the output circuit, wherein the active part is between the first control electrode and the second control electrode in a cross-sectional view of the at least one pull-down transistor.
3 more elements
Dependencies are inferred from the claim text.