When the speed of head movement exceeds the processing capability of the system, a reduced depiction is displayed. As one example, the resolution may be reduced using coarse pixel shading in order to create a new depiction at the speed of head movement. In accordance with another embodiment, only the region the user is looking at is processed in full resolution and the remainder of the depiction is processed at lower resolution. In still another embodiment, the background depictions may be blurred or grayed out to reduce processing time.

Disclosed is a display driver circuit including a resolution analyzer that detects a size of a portion of screen input data received from a processor, and acquires a setting related to scaling of the screen input data based on the detected size, and an image processor that generates screen output data corresponding to a resolution of the display panel based on the acquired setting, and supplies the generated screen output data to a display panel. Various embodiments identified herein may be realized.

An electronic device includes a touch screen display, an input/output interface, a communication circuit, a memory, and a processor, and the processor modifies screen configuration information associated with at least a part of a resolution, a density, and an orientation of a screen output by the electronic device if the electronic device is connected to the external display device through the input/output interface, determines whether a target application to be displayed on the external display device supports resizing of a window that displays an execution screen of the target application, configures a first type of window which is resizable if the target application supports the resizing, configures a second type of window with a fixed size if the target application does not support the resizing, and displays the first type of window or the second type of window on the external display device.

An electronic device includes a touch screen display, an input/output interface, a communication circuit, a memory, and a processor, and the processor modifies screen configuration information associated with at least a part of a resolution, a density, and an orientation of a screen output by the electronic device if the electronic device is connected to the external display device through the input/output interface, determines whether a target application to be displayed on the external display device supports resizing of a window that displays an execution screen of the target application, configures a first type of window which is resizable if the target application supports the resizing, configures a second type of window with a fixed size if the target application does not support the resizing, and displays the first type of window or the second type of window on the external display device.

When the speed of head movement exceeds the processing capability of the system, a reduced depiction is displayed. As one example, the resolution may be reduced using coarse pixel shading in order to create a new depiction at the speed of head movement. In accordance with another embodiment, only the region the user is looking at is processed in full resolution and the remainder of the depiction is processed at lower resolution. In still another embodiment, the background depictions may be blurred or grayed out to reduce processing time.

There is provided a data processor for a display device including a display panel having a first resolution. The data processor includes a first mode selector and a player. The first mode selector includes a distance detector, a comparator, and a transmission resolution adjustor. The distance detector may detect a current distance between a viewer and a display surface of the display panel. The comparator determines an amount of change of the current distance from a previous distance. The transmission resolution adjustor determines a second resolution according to a threshold range within which the previous distance falls and the amount of change. The player processes received external image data as intermediate data having the second resolution.

There is provided a data processor for a display device including a display panel having a first resolution. The data processor includes a first mode selector and a player. The first mode selector includes a distance detector, a comparator, and a transmission resolution adjustor. The distance detector may detect a current distance between a viewer and a display surface of the display panel. The comparator determines an amount of change of the current distance from a previous distance. The transmission resolution adjustor determines a second resolution according to a threshold range within which the previous distance falls and the amount of change. The player processes received external image data as intermediate data having the second resolution.

A method for controlling a display apparatus, the method comprising, displaying, in a first mode, a first image based on received image data having first resolution on a display surface at a first display size corresponding to the first resolution, displaying, in a second mode, a second image based on the image data having second resolution smaller than the first resolution on the display surface at a second display size corresponding to the second resolution, converting, when the display apparatus accepts the operation of increasing the second display size in the second mode, the first resolution of image data to third resolution corresponding to the operation, displaying a third image based on the image data having the third resolution on the display surface.

A method for controlling a display apparatus, the method comprising, displaying, in a first mode, a first image based on received image data having first resolution on a display surface at a first display size corresponding to the first resolution, displaying, in a second mode, a second image based on the image data having second resolution smaller than the first resolution on the display surface at a second display size corresponding to the second resolution, converting, when the display apparatus accepts the operation of increasing the second display size in the second mode, the first resolution of image data to third resolution corresponding to the operation, displaying a third image based on the image data having the third resolution on the display surface.

Disclosed is a display driver circuit including a resolution analyzer that detects a size of a portion of screen input data received from a processor, and acquires a setting related to scaling of the screen input data based on the detected size, and an image processor that generates screen output data corresponding to a resolution of the display panel based on the acquired setting, and supplies the generated screen output data to a display panel. Various embodiments identified herein may be realized.