A remote screenshot method adapted to a sender and a receiver having a communicable connection with the sender, wherein the sender electrically connects to an electronic device to receive an image signal outputted by the electronic device, the receiver electrically connects to a display device to show the image signal, and the remote screenshot method comprises: sending a capturing instruction through a first communication circuit by the sender; receiving the capturing instruction through a second communication circuit by the receiver; obtaining a captured image according to the capturing instruction by the sender, wherein the captured image is associated with the image signal shown by the display device; sending the captured image to the first communication circuit through the second communication circuit by the receiver; and storing the captured image in a storage circuit by the sender.

A touch screen controller, a touch screen driving circuit and a touch screen system are provided. The touch screen driving circuit configured to drive a touch screen includes an analog driving circuit configured to provide driving signals to a display panel and a touch panel of the touch screen, and generate a touch sensing value based on a touch sensing signal from the touch panel; a display noise table (DNT) comprising display noise information indicating display noise that varies according to a driving state of the touch screen and image data; a feature extractor configured to extract a plurality of feature values from the driving state and the image data; and a touch processor configured to read a display noise value mapped to the plurality of feature values from the DNT, subtract the display noise value from the touch sensing value and generate a touch value.

A display system includes a display device. The display device is arranged to receive a video signal and a control signal from a host system, and includes a processing circuit and a display screen, wherein the processing circuit is arranged to process an original frame corresponding to the video signal according to the control signal, to generate a magnified frame, and generate a processed frame according to the magnified frame and the original frame, and the display screen is coupled to the processing circuit, and is arranged to display the processed frame.

Embodiments disclosed herein provide systems, methods and computer readable media for generating remote views in a virtual mobile device platform. A virtual mobile device platform may be coupled to a physical mobile device over a network and generate frames of data for generating views on the physical device. These frames can be generated using an efficient display encoding pipeline on the virtual mobile device platform. Such efficiencies may include, for example, the synchronization of various processes or operations, the governing of various processing rates, the elimination of duplicative or redundant processing, the application of different encoding schemes, the efficient detection of duplicative or redundant data or the combination of certain operations.

Disclosed are a method for displaying handwritten input content, an electronic device and a non-volatile computer readable storage medium. The method includes: acquiring handwritten input content; modifying image stored in a display cache based on the handwritten input content, and synchronizing a modified image to a display screen; and drawing the handwritten input content in a custom graphic layer located above other graphic layers in a system cache, performing a graphic layer merging operation for the other graphic layers and the custom graphic layer, and replacing the modified image stored in the display cache in response to a result of the operation.

A display driver circuit configured to drive a display panel includes a memory, a decoder, and a controller. The memory stores first data using data from outside of the display driver circuit. The decoder decodes the stored first data. The controller generates compression data using the decoded first data. While an image based on the decoded first data is displayed on the display panel, when second data based on the data from the outside are not stored in the memory after the first data are stored in the memory, the controller controls the decoder such that the decoder does not operate and controls the memory such that the compression data are stored in the memory.

A backlight adjusting method of display device, a backlight adjusting device and a display device are provided, where the display device includes a display panel and a backlight element, the display panel is divided into a plurality of display subareas, the backlight element includes a plurality of backlight subareas, the display subareas and the backlight subareas are in a one-to-one correspondence, the method includes: for each of the backlight subareas, calculating an initial backlight value of the backlight subarea according to pixel information of the display subarea corresponding to the backlight subarea; and determining a first correction backlight value of the backlight subarea according to a preset backlight threshold and an initial backlight value of each of the other backlight subareas adjacent to the backlight subarea.

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for parallelization of GPU composition with DPU topology selection. A processor may receive an indication of a plurality of application layers for composition at a first processor (e.g., a DPU) and a second processor (e.g., a GPU). The processor may select one or more first application layers of the plurality of application layers for attempted composition at the first processor and one or more second application layers of the plurality of application layers for composition at the second processor. The processor may transmit each of the one or more first application layers to the first processor for composition and each of the one or more second application layers to the second processor for composition.

Display filters, including color filters, can be enabled in collaborative environments. When a user of an end user device desires to have a color filter applied, a windowing system or other source of graphics data can render a frame via a graphics driver. Once the frame is rendered, the graphics driver can enable a collaboration tool to capture the frame and share it via a collaboration solution. Separately from the rendering of the frame, the windowing system can leverage a color filter module to directly apply a color filter to the frame. Once the color filter is applied, the windowing system can cause the frame to be displayed locally. Because the graphics driver is not used to apply the color filter, the color filter will not be applied to any frame that the collaboration tool captures and shares.

PWM-frame rate misalignment is mitigated through implementation of a discrete variable refresh rate (VRR) scheme. A target frame rate is limited to a frame rate selected from only those frame rates that facilitate alignment of each frame period to a specified edge of a PWM cycle of a brightness control signal of a display panel. This alignment results in each frame period at the selected frame rate starting at a same point in a corresponding PWM cycle and ending at a same point in a corresponding PWM cycle to help ensure a constant effective duty cycle across each successive frame period, which in turn mitigates perception of flicker that otherwise would arise. Further, the discrete VRR scheme can employ a compensation mode for compensating for the delay in rendering or otherwise obtaining a frame for display so as to maintain a consistent duty cycle in the brightness control signal.