Lg Display Co., Ltd.

Seongho Yun

SooHong Choi

HongJae Shin

Jaeyi Choi

JaeKyu Park

YongHo Kim

Jeongrim Seo

Dongmyoung Kim

The present disclosure relates to a gate driving circuit and a display device including the gate driving circuit, and more particularly, to a gate driving circuit having a reduced size and a display device including the gate driving circuit. The gate driving circuit comprises a plurality of dummy stage circuits and stage circuits, which supply gate signals to each gate line and comprise a Q node, a QH node, and a QB node. A gate signal output circuit included in each of the stage circuits can output first to j-th gate signals based on first to j-th scan clock signals or a first low voltage according to the voltage level of the Q node or the voltage level of the QB node.

Gate driving circuit and display device including gate driving circuit

The present disclosure relates to a display panel for gate driving and a display device, which include a gate driving panel circuit and are capable of providing a stable power wiring structure for stably supplying high voltages and low voltages to the gate driving panel circuit disposed in the display panel.

Display panel for gate driving and display device

A display device can include a display panel having subpixels each including a driving transistor; a data driver to drive data lines and reference lines connected to the subpixels; a timing controller to control the data driver; and a power management circuit to supply a reference voltage to the reference lines. Also, the data driver receives the reference voltage of a first specific level for a first row line of the subpixels from the power management circuit and supplies the reference voltage of the first specific level to the first row line as an initialization voltage during a threshold voltage sensing mode, and receives the reference voltage of a second specific level for a second row line of the subpixels from the power management circuit and supplies the reference voltage of the second specific level to the second row line as the initialization voltage during the threshold voltage sensing mode.

Display device and method for driving the same

A gate driver circuit can include a plurality of stage circuits, in which each of the plurality of stage circuits supplies a gate signal to gate lines arranged in a display panel, and includes an M node, a Qnode, a Qnode, a QB node, a line selector, a Qnode controller, a Qnode stabilizer, an inverter, a QB node stabilizer, a carry signal output circuit portion, and a gate signal output circuit portion, in which a first low-potential voltage level, a third low-potential voltage level, and a fourth low-potential voltage level for operating the gate driver circuit are set to different values, and the gate driver circuit can have a reduced size and better prevent leakage current while also providing more stable gate signals.

Gate driver circuit and display device including the same

A gate driving circuit and a light emitting display apparatus comprising the same are discussed, in which a charging characteristic of a control node is improved. The gate driving circuit comprises first to mth stage circuits, wherein each of the first to mth stage circuits includes first to third control nodes, a node control circuit controlling a voltage of each of the first to third control nodes, and an output buffer circuit outputting each of a scan signal, a sense signal and a carry signal in accordance with each of the first to third control nodes, the node control circuit including a node setup circuit charging a first gate high potential voltage in the first control node in response to a first carry signal supplied from a front stage circuit.

Growing community of inventors

Paju-si, South Korea

Seongho Yun