The present disclosure is directed to systems and methods of maintaining source device to sink device synchronization in systems in which the source device enters a Panel Self-Refresh (PSR/PSR2) mode and the sink device enables adaptive synchronization with the source device. To maintain synchronization, in some instances the source device and the sink device may maintain synchronization contemporaneous with at least a portion of the PSR/PSR2 operating mode. To maintain synchronization, in some instances, a high-bandwidth communications link may be maintained between the source device and the sink device. In some instances, synchronization between the source device and the sink device may be interrupted upon the source device entering the PSR/PSR2 operating mode and may be re-established upon the source device exiting the PSR/PSR2 operating mode.

A display device includes a plurality of pixels, and a plurality of data lines connected to the plurality of pixels; a data driver for transmitting a data voltage to the data line; and a signal controller for receiving input image signals from the outside and outputting a digital image signal to the data driver. The signal controller includes an adjacent image signal compensator for comparing input gray data of the input image signals to be continuously input to the data line and generating adjacent image signal compensation data based on the comparison, and a pixel characteristic compensator for generating pixel characteristic compensation data according to a characteristic of a pixel to be displayed.

In a method and supporting system for intelligent buffering of large scale videos, a video presentation includes a plurality of sub-videos, each associated with a field of view. During presentation of the large scale video, sub-videos within a user's field of view are loaded and presented to the user, and sub-videos in proximate fields of view are loaded for potential presentation. On identifying a change in the user's field of view to one of the proximate fields of view, sub-videos are loaded for presentation within the new field of view. In a method and supporting system for seamless transitions in large scale videos, a video having a plurality of sub-videos is provided for presentation to a user, and distraction levels based on video content and user interactions are tracked. A transition point for the video is identified based on one or both distraction levels, and a sub-video is changed to a different sub-video at the transition point.

A method and system for operating in a single display mode operation and a dual pipe mode of operation is disclosed. The method and system includes operating in a dual pipe mode of operation in which each display pipe transmits data from a respective buffer to an associated display. The method and system further includes operating in a single display mode of operation in which one display pipe transmits data from a plurality of buffers to an associated display.

A system includes a display subsystem. The display subsystem includes a shared buffer having allocated portions, each allocated to one of a plurality of display threads, each display thread associated with a display peripheral. The display subsystem also includes a direct memory access (DMA) engine configured to receive a request from a main processor to deallocate an amount of space from a first allocated portion associated with a first display thread. In response to receiving the request, the DMA engine deallocates the amount of space from the first allocated portion and shifts the allocated portions of at least some of other display threads to maintain contiguity of the allocated portions and concatenate free space at an end of the shared buffer.

A system and method for converting raw frame data to a video file. Instead of converting all raw frame raw for each frame, embodiments create a mapping table and compare a mapping of the raw frame data for a current frame with a mapping of the raw frame data for a previous frame to determine if raw frame data changed from a previous frame to the current frame. Embodiments convert only the new raw frame data and update the mapping table with the new raw frame data, whereby the processing resources and time needed to convert raw frame data into a video file may be greatly reduced.

Features are disclosed for rendering an image using a GPU and CPU based rendering pipeline. An imaging system may include a GPU and a CPU that each include a portion of an image renderer. A component of the GPU can process the set of image tiles to generate a texture with a wrapped tile coordinate. A component of the GPU can further store the image data as a level of a texture pyramid. As subsequent image data is received, a component of the GPU can access the texture pyramid to determine previously stored image tiles. A component of the GPU can use the previously stored image tiles in rendering the subsequent image data.

An information processing apparatus includes: a processor; an image processor to produce an image data for being displayed on a display; and a memory to store a screen data, the screen data being capable of being transferred from the memory to the image processor at a higher transfer rate and a lower transfer rate; wherein, when a new screen data is transferred from the memory to the image processor, the processor sets the lower transfer rate during an interval at which the image processor switches the image data from an old image data to a new image data.

The present teaching relates to method, system, medium, and implementations for data transfer in LED display. A signal signaling a timing for a next data transfer is received. In response to the signal, a next data transfer instruction is obtained that instructs reading a bit-based image block of an image from a memory. The bit-based image block is transferred, according to the next data transfer instruction, from the memory via a bus connected thereto, to one of a pair of alternate buffers pointed to by a write buffer pointer. Then, the write buffer pointer is toggled to point to another of the pair of alternate buffers and the process repeats. The bit-based image blocks alternately stored in the buffers are later retrieved and displayed on the LED display.

A novel method for driving a digital display having a plurality of pixel rows includes receiving a frame of data to be written to the display in a predetermined frame time, dividing the frame time into a plurality of time intervals, defining a plurality of row groups, and defining a unique sequence for each row group to display corresponding multi-bit data words and a number of off states on the pixels of the rows of the row groups. The drive sequence of each row is offset with respect to an initial row by a unique predetermined number of off states. The predetermined numbers of off states ensure that the pixel updates of the groups do not overlap.