US 2021/0201808 A1 · GATE DRIVING CIRCUIT AND IMAGE DISPLAY DEVICE INCLUDING THE SAME

Abstract

A gate driving circuit and an image display device including the gate driving circuit are provided. In some embodiments of the present disclosure, the gate driving circuit includes a plurality of stages configured to sequentially and repeatedly output a plurality of scan pulses having different pulse widths in response to a gate control signal applied from a timing controller and the plurality of stages sequentially generate the plurality of scan pulses having different pulse widths and phase-delayed in response to three-phase clock pulses among the gate control signals and sequentially supply the plurality of scan pulses to gate lines of a display panel to selectively adjust a light emission period or a color display period for each red pixel, green pixel, and blue pixel, thereby improving image quality.

Claims16

Dependent claims

A gate driving circuit, comprising:

a plurality of stages configured to sequentially and repeatedly output a plurality of scan pulse signals, each having a different pulse width in response to at least one external gate control signal, the external gate control signal including three-phase clock pulses,
wherein at least one of the plurality of stages is configured to sequentially generate at least one of the plurality of scan pulse signals having the different pulse width and phase-delayed in response to the three-phase clock pulses among the gate control signals, the pulse width for each of the scan pulse signals and a phase delay for each of the scan pulse signals determined based on the three-phase clock pulses, and
wherein the plurality of stages is configured to supply the plurality of scan pulse signals to a plurality of gate lines of a display panel in the sequence.

An image display device, comprising:

a display panel with red sub-pixels, green sub-pixels, and blue sub-pixels in a plurality of pixel areas and configured to display an image;
a data driving circuit configured to drive data lines of the display panel;
a gate driving circuit configured to sequentially and repeatedly supply a plurality of scan pulses having different pulse widths to gate lines of the display panel;
and
a timing controller configured to generate a plurality of gate control signals having different pulse widths to supply the plurality of gate control signals to the gate driving circuit and to control a driving timing of each of the gate driving circuit and the data driving circuit.

2 more elements

Dependencies are inferred from the claim text.

Gate driving circuit and image display device including the same

Life of this patent

Gate driving circuit and image display device including the same

Life of this patent

Abstract

Claims16