Aspects of the present disclosure relate to display region filtering. A pixel priority value for each of a plurality of pixels on a display region are assigned in response to identifying portions of the display region for prioritization, wherein the pixel priority values indicate a relative importance of each of the pixels, respectively, for viewing based on a magnitude of the pixel priority values. The pixel priority value of each pixel is compared to a first pixel priority threshold to identify pixels of the plurality of pixels having pixel priority values which do not satisfy the first pixel priority threshold. The pixels of the plurality of pixels having pixel priority values which do not satisfy the first pixel priority threshold are deactivated, wherein a subset of pixels satisfies the first pixel priority threshold and remain active.

Aspects of the present disclosure relate to display region filtering. A pixel priority value for each of a plurality of pixels on a display region are assigned in response to identifying portions of the display region for prioritization, wherein the pixel priority values indicate a relative importance of each of the pixels, respectively, for viewing based on a magnitude of the pixel priority values. The pixel priority value of each pixel is compared to a first pixel priority threshold to identify pixels of the plurality of pixels having pixel priority values which do not satisfy the first pixel priority threshold. The pixels of the plurality of pixels having pixel priority values which do not satisfy the first pixel priority threshold are deactivated, wherein a subset of pixels satisfies the first pixel priority threshold and remain active.

An electronic device may be provided with a display mounted in a housing. The display may have an array of pixels that form an active area and may have an inactive area that runs along an edge of the active area. An opaque layer may be formed on an inner surface of a display cover layer in the inactive area of the display or may be formed on another transparent layer in the electronic device. An ambient light sensor window may be formed from the opening and may be aligned with color ambient light sensor. The ambient light sensor may have an integrated circuit with an array of photodetectors and may have a color filter layer forming a corresponding array of thin-film interference color filters with different respective pass bands. The color filter layer may have a shared dielectric stack and multiple color-filter-specific dielectric stacks on the shared dielectric stack.

A passively and nonintrusively monitoring liquid crystal display (LCD) system includes a graphics controller configured to generate alternating sets of drive instructions and forward the drive instructions for execution by drive electronics to activate display elements of a display surface. An initial set of drive instructions corresponding to a first frame causes the drive electronics to draw an initial pattern such as a solid red fill to selected regions of the display surface. An alternating set of drive instructions causes the drive electronics to draw a contrasting pattern such as a solid cyan fill to the selected regions. Given a sufficiently high refresh rate between the initial and alternating sets, a human operator perceives only the integration of the two patterns unless the display system is in a stuck or frozen state, when the frozen initial and contrasting patterns clearly and quickly indicate the stuck/frozen failure condition.

A method for display control and related products are provided. The method for display control is applicable to an electronic device including a notched screen and a circuit coupled with the notched screen. The notched screen has a first region and a second region. The method includes the following. Device color information near the first region is acquired. A target color-display adjustment parameter of the first region is determined according to the device color information. Display of the first region is controlled according to the target color-display adjustment parameter.

Methods and devices for processing image frames is described. The techniques presented herein leverage known characteristics of the optical transfer component in order to modify the resource allocation for rendering the subset of pixels whose contribution to the final rendered image is less than a contribution threshold. Thus, in situations where the deflection of light from the lens may impact the contribution of the one or more subset of pixels of an image frame towards the final rendered image, the image processing techniques presented here may either omit or deprioritize the identified subset of pixels in order to conserve valuable resources (e.g., dedicate less processing time and memory to rendering the identified subset of pixels).

An image rendering apparatus includes a light source unit, an optical scanner, a scanner control unit configured to control a frequency for the optical scanner to scan the laser light in the main scanning direction, and a light source driving unit. The scanner control unit multiplies the frequency by n and the light source driving unit changes time intervals at which pixels are rendered on scanning lines in the main scanning direction to 1/nth and controls the light source unit in such a way that the light source unit renders a plurality of pixels corresponding to one scanning line at least once during n scans in the main scanning direction and in such a way that the light source unit will not render pixels on scanning line(s) other than the scanning lines on which the pixels have been rendered.

A head-mounted display device including a camera, a controller, and a display system is provided. The camera captures an original image of the surrounding environment. The controller determines an area of a predetermined color in the original image, and increases at least one of the saturation level and the intensity level of the original image in the area to generate a color-difference enhanced image. The display system displays the color-difference enhanced image.

Techniques are described for reducing the number of fetches performed when a background layer (e.g., letter or pillar box) to be displayed is of a constant fill color. One or more processors (e.g., a display processor) may be configured to detect that a background layer is of a constant fill color. If so, rather than fetching the background layer from memory, the one or more processors may be configured to generate the constant fill color for the background layer. In doing so, there may be a reduction in the number of memory fetches performed, as the constant fill background layer is not fetched or is only partially fetched. This may reduce memory fetch operations (as only the video layer is fetched) and therefore power savings (e.g., battery usage) at memory and bus interfaces, decreased use of the bandwidth at the bus and memory, and decreased processor usage.

Described herein are systems and methods that reduce power consumption for an electronics device including a display. The systems and methods alter video information in a display area and reduce power for a display device when a graphics item is enlarged and the enlargement threatens to increase perceived luminance for the graphics item or increase aggregate luminance for the display area. Altering the video information reduces the luminance of video information in at least the graphics item when enlarged. This may offset perceived luminance gained by human visual processing when an item increases in size. If the graphics item is smaller than the display area after enlargement, then other video information in the display area may also be altered to conserve power.