US 10,504,442 B2 · Display device and gate driving circuit thereof, control method and virtual reality device

Abstract

A display device and a gate driving circuit are disclosed. The display device includes a display panel comprising a plurality of data lines, a plurality of gate lines and a plurality of pixels arranged in a matrix in which the plurality of data lines and the plurality of gate lines intersect with each other; a system controller that sends image data of an input image to a display driver; and the display driver that drives the display panel by decreasing the number of shifts in gate signals applied to gate lines in a second area as compared with a first area. The first area is an area in which the input image is to be displayed in a first resolution in the display panel, and the second area is an area in which the input image is to be displayed in a second resolution smaller than the first resolution in the display panel.

Claims18

Dependent claims

A display device comprising:

a display panel including a plurality of data lines, a plurality of gate lines and a plurality of pixels arranged in a matrix form where the plurality of data lines and the plurality of gate lines intersect with each other;
a system controller sending image data of an input image to a display driver, wherein the display driver drives the display panel by decreasing the number of shifts in gate signals applied to the plurality of gate lines in a second area where the input image is displayed with a second resolution lower than a first area where the input image is displayed in a first resolution in the display panel;
and wherein the display driver further drives the display panel by decreasing the number of shifts in gate signals applied to the plurality of gate lines in a third area where the image data is displayed in a third resolution than the second resolution in the display panel.

A gate driving circuit for a display device, a display panel of the display device comprising a first area where an input image is displayed in a first resolution and a second area where the input image is displayed in a second resolution smaller than the first resolution, wherein the gate driving circuit comprising:

a shift register shifting pulses of gate signals and sequentially supplying the gate signals to a plurality of gate lines, the shift register including a plurality of stages connected as a cascade through a carry signal wiring;
and a multiplexer switching a path of an output signal of each of the plurality of stages, wherein in the first area, the multiplexer provides the output signal of a previous stage to start terminals of a first number of next stages as an carry signal, and in the second area, the multiplexer provides the output signal of a previous stage to start terminals of a second number of next stages as a carry signal, wherein the first number corresponds to the first resolution, and the second number corresponds to the second resolution;
and wherein the display panel further comprises a third area where the input image is displayed in a third resolution lower than the second resolution.

Dependencies are inferred from the claim text.

Display device and gate driving circuit thereof, control method and virtual reality device

Life of this patent

Display device and gate driving circuit thereof, control method and virtual reality device

Life of this patent

Abstract

Claims18