Disclosed herein is system for buffering processor interrupts from active input devices, such as Bluetooth devices, so that they are aligned with a video refresh rate. The system may include a processor that operates in a first operating mode (e.g., a low power mode) and, in response to an interrupt request, switch to a second operating mode (e.g., a higher power mode). The first operating mode may be different from the second operating mode (e.g., each with a different level of power consumption). The system may also include a video subsystem, in communication with the processor, that provides video information at a refresh rate. The system may also include an input subsystem, such as a wireless communication system, in communication with the processor, that receives an activity trigger representing an activity of a input device, such as a human input device, and provides, based on the refresh rate, the activity trigger to the processor as the interrupt request.

A method for driving a display device capable of appropriately performing idle driving even when timing information is not transmitted to a liquid crystal module in advance is provided. In a case where, in one vertical period, a non-scanning period other than a scanning period in which a screen of a display unit is scanned once is set to a pause period, a liquid crystal module delays supply of a data signal to the display unit by a recovery period during which a source driver is recovered from a sleep state to an active state in the pause period.

An electronic device may include a display panel. When content of an image frame is expected to consume relatively higher amounts of power, a controller of the electronic device may operate a switch to change a power supply of the display panel to be a power management integrated circuit of the electronic device. However, when content of an image frame is expected to consume relatively less amounts of power, the controller may operate the switch to change the power supply of the display panel to be a power supply of an electronic display, such as a power supply used to power driver circuitry of the electronic display.

Embodiments of this application provide an always-on-display method and an electronic device. The method includes: displaying, by an electronic device, an always-on-display screen, where the always-on-display screen includes a first image of a first display object; in response to detecting by the electronic device that an external object satisfies a first preset condition, displaying, by the electronic device, a second image of a second display object, where the second image is different from the first image. In the embodiments of this application, the always-on-display screen displayed by the electronic device can change according to the external object. When the external object satisfies a preset condition, a corresponding image or motion video is displayed, so that the always-on-display screen can be flexibly displayed.

Particular embodiments described herein provide for an electronic device that includes a display panel that includes a segmented backlight and a display engine, where, for each segment in the segmented backlight, the display engine communicates to the display panel an identifier that indicates if a brightness value of the segment in a next frame in a video stream will change from a brightness value of the segment in a current frame in the video stream. The display panel can include a timing controller (TCON) and the TCON uses the identifier for each segment in the segmented backlight to determine if a brightness of a specific backlight segment for the next frame can be a same level as a brightness of the specific backlight segment for the current frame.

An information processing device includes: a foldable one display; a memory which stores at least a program; and a processor which executes the program stored in the memory. By executing the program stored in the memory, the processor performs: operating state switching processing to switch an operating state of a system among a first operating state, a second operating state in which processing of the system is more limited than that in the first operating state and at least the display is hidden, and a third operating state in which the processing of the system is shut down, display mode switching processing to switch between a first display mode to control display by setting a screen area of the display as one display area, and a second display mode to control display by splitting the screen area into plural display areas, and setting switching processing.

A drive control method and a related device for a display panel that has different display areas are provided. Time-divided drive control is performed on pixel scan circuits corresponding to the different display areas, so that in a scenario in which some display areas do not need to display an image, a pixel scan circuit may be left idle for some time, to reduce power consumption required by the pixel scan circuits for scanning pixels in this time period. In addition, in the embodiments of this application, time-divided drive control is further performed on touch scan circuits and fingerprint scan circuits corresponding to the different display areas, independent power supplying is further used for pixels in the different display areas, and some functions of a display driver are enabled in a time-divided manner.

In one embodiment, a method may obtain, from an application, (a) an image and (b) a layer frame having a first pose in front of the image. The method may generate, for a first viewpoint associated with a first time, a first display frame by separately rendering the image and the layer frame having the first pose into a display buffer. The method may display the first display frame at the first time. The method may determine an extrapolated pose for the layer frame based on the first pose of the layer frame and a second pose of a previously submitted layer frame. The method may generate, for a second viewpoint associated with a second time, a second display frame by separately rendering the image and the layer frame having the extrapolated pose into the display buffer. The method may display the second display frame at the second time.

Disclosed herein are techniques to coordinate power management between a platform and a panel. Provided are apparatuses, techniques, and circuitry to determine whether to initiate power management features in a panel and send a signal from a platform to the panel including an indication that no frame updates are expected and power management functions can be initiated.

An electronic device includes a display panel including pixels respectively connected to scan lines, scan stages corresponding to the scan lines, where each of the scan stages receives a carry signal, and outputs a scan signal, masking circuits electrically connected to some of the scan stages, respectively, where each of the masking circuits outputs a masking carry signal in response to a masking signal and the scan signal, and transmission circuits electrically connected to others of the scan stages, respectively, where each of the transmission circuits outputs the scan signal output from a corresponding scan stage among the scan stages. A j-th (j is an integer greater than 1) scan stage among the scan stages receives one of the scan signal output from a (j−1)-th scan stage and the masking carry signal as the carry signal.