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US 2026/0171004 A1Published application
Gate driver and display device including the same
AssigneeLG Display Co., Ltd.
InventorsWooKyu Sang, BoGun Seo, YoungJoon Lee
Life of this patent
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Abstract
A gate driver includes a light emission driver comprising a plurality of light emission stages cascaded and configured to output a plurality of light emission control signals based on a light emission start signal and a plurality of light emission clock signals and an output controller comprising a plurality of stages cascaded and configured to output a plurality of pull-up control signals and a plurality of pull-down control signals based on the plurality of light emission control signals, a plurality of clock signals, a plurality of control clock signals, a first power source, and a second power source having a lower voltage level than the first power source.
Claims20
A gate driver, comprising:
- a light emission driver comprising a plurality of light emission stages cascaded and configured to output a plurality of light emission control signals based on a light emission start signal and a plurality of light emission clock signals;
- and
- an output controller comprising a plurality of stages cascaded and configured to output a plurality of pull-up control signals and a plurality of pull-down control signals based on the plurality of light emission control signals, a plurality of clock signals, a plurality of control clock signals, a first power source, and a second power source having a lower voltage level than the first power source,
- wherein the plurality of stages each comprise:
- a carry part configured to output a carry signal based on at least one of the plurality of light emission control signals, at least one of the plurality of clock signals, the first power source, and the second power source;
- and
- an output part configured to output a corresponding one of the pull-up control signals and a corresponding one of the pull-down control signals based on the carry signal, at least one of the plurality of control clock signals, the first power source, and the second power source.
4 more elements
A gate driver, comprising:
- an output controller comprising a plurality of stages cascaded and configured to output a plurality of pull-up control signals and a plurality of pull-down control signals based on a plurality of light emission control signals, a plurality of clock signals, a plurality of control clock signals, a first power source, and a second power source having a lower voltage level than the first power source;
- and
- a scan driver comprising a plurality of gate stages cascaded and configured to output a plurality of gate signals based on a gate start signal, a plurality of gate clock signals, the plurality of pull-up control signals, and the plurality of pull-down control signals,
- wherein the plurality of stages each comprise:
- a carry part configured to output a carry signal based on at least one of the plurality of light emission control signals, at least one of the plurality of clock signals, the first power source, and the second power source;
- and
- an output part configured to output a corresponding one of the pull-up control signals and a corresponding one of the pull-down control signals based on the carry signal, at least one of the plurality of control clock signals, the first power source, and the second power source.
4 more elements
A display device, comprising:
- a display panel comprising a plurality of pixels;
- a scan driver configured to output a plurality of gate signals to the plurality of pixels;
- a light emission driver configured to output a plurality of light emission control signals to the plurality of pixels;
- and
- an output controller comprising a plurality of stages configured to output a plurality of pull-up control signals and a plurality of pull-down control signals based on the plurality of light emission control signals, a plurality of clock signals, a plurality of control clock signals, a first power source, and a second power source having a lower voltage level than the first power source,
- wherein the plurality of stages each comprise:
- a carry part configured to output a carry signal based on at least one of the plurality of light emission control signals, at least one of the plurality of clock signals, the first power source, and the second power source;
- and
- an output part configured to output a corresponding one of the pull-up control signals and a corresponding one of the pull-down control signals based on the carry signal, at least one of the plurality of control clock signals, the first power source, and the second power source.
6 more elements
Dependencies are inferred from the claim text.