US 2018/0293935 A1 · DISPLAY DEVICE INCLUDING POWER DELIVERY NETWORK CONTROLLER AND DISPLAY POWER MANAGEMENT METHOD USING THE SAME

Abstract

Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.

Claims20

Dependent claims

A display device comprising:

a display panel comprising a plurality of sub-panels;
a power delivery network (PDN) configured to be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal;
an image controller configured to receive to frame image data store, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data;
and
a PDN controller configured to generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and to provide the generated size adjusting signal to the image controller,
wherein the size adjusting signal adjusts the window size.

3 more elements

A power management method using a display device, which comprises a display panel comprising a plurality of sub-panels, a PDN comprising a switch network and a plurality of DC-DC converters, an image controller, and a PDN controller, the method comprising:

a reconfiguration information generating operation for generating, by the PDN controller, reconfiguration information of the PDN for frames that configure a next window on a basis of an existing window size and existing state information about the PDN;
an update and whether to re-execute determining operation for determining, by the PDN controller, whether to update the window size and whether to re-execute the reconfiguration information generating operation on a basis of the generated reconfiguration information;
an updating and re-executing operation for updating, by the image controller and the PDN controller, the window size and re-executing the reconfiguration information generating operation according to a result of the update and whether to re-execute determining operation;
and
an operation for reconfiguring, by the PDN, the PDN on a basis of the generated reconfiguration information.

2 more elements

Dependencies are inferred from the claim text.

Display device including power delivery network controller and display power management method using the same

Life of this patent

Display device including power delivery network controller and display power management method using the same

Life of this patent

Abstract

Claims20