Gate driving circuit and display device
AssigneeLG Display Co., Ltd.
InventorsSungMin Park, TaeKyeong Lee
Life of this patent
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Abstract
Embodiments of the present disclosure are related to a gate driving circuit and a display device. Specifically, a compensation signal corresponding to a change in gate low voltage in a scan period may be applied to at least one gate line among the plurality of gate lines in each of at least one compensation period excluding a scan period during which the scan signal is applied to the plurality of gate lines during the display driving period. Accordingly, it is possible to provide a gate driving circuit and a display device capable of implementing low-power driving and improved image quality by reducing flicker due to the decrease in luminance during low-speed driving.
Claims10
A display device comprising:
- a display panel on which a plurality of gate lines, a plurality of data lines and a plurality of subpixels are disposed;
- a gate driving circuit for supplying a scan signal to the plurality of gate lines during a display driving period;
- and
- a data driving circuit for supplying a data voltage to the plurality of data lines,
- wherein the gate driving circuit is configured to apply a compensation signal corresponding to a change in a gate low voltage in a scan period to at least one gate line among the plurality of gate lines in each of at least one compensation period excluding a scan period during which the scan signal is applied to the plurality of gate lines during the display driving period, and
- wherein the scan period and the compensation period each include a blank period, and a length of a blank period included in the scan period is equal to a length of a blank period included in the compensation period.
A display device comprising:
- a display panel on which a plurality of gate lines, a plurality of data lines and a plurality of subpixels are disposed;
- a gate driving circuit for supplying a scan signal to the plurality of gate lines during a display driving period;
- and
- a data driving circuit for supplying a data voltage to the plurality of data lines,
- wherein the gate driving circuit is configured to apply a compensation signal corresponding to a change in a gate low voltage in a scan period to at least one gate line among the plurality of gate lines in each of at least one compensation period excluding a scan period during which the scan signal is applied to the plurality of gate lines during the display driving period, and
- wherein a voltage level of the compensation signal is a median value of an increased gate low voltage level in the scan period corresponding to each of the plurality of gate lines.
A display device comprising:
- a display panel on which a plurality of gate lines, a plurality of data lines and a plurality of subpixels are disposed;
- and
- a gate driving circuit configured to supply a gate signal to the plurality of gate lines based on a gate high voltage and a gate low voltage,
- wherein the gate driving circuit is configured to supply the gate signal including a first signal section having a variable gate high voltage higher than the gate high voltage, a second signal section having the gate low voltage at a first voltage level, and a third signal section having the gate low voltage at a second voltage level higher than the first voltage level,
- wherein the gate signal is supplied during a display driving period including a scan period and at least one compensation period, the scan period including the first signal section and the second signal section, and the at least one compensation period including the third signal section and the second signal section, and wherein a length of the second signal section included in the scan period is equal to a length of the second signal section included in the at least one compensation period.
Dependencies are inferred from the claim text.