1514 results about "Refresh rate" patented technology

A device may determine an area at which a user gazes on the display screen. The device may identify on the display screen a screen region which does not overlap the area, may darken the identified screen region, and/or may refresh the display screen by updating a screen region that overlaps the area and not updating the identified screen region.

One embodiment of the present invention sets forth a technique for generating a transparency effect for a computing device. The technique includes transmitting, to a camera, a synchronization signal associated with a refresh rate of a display. The technique further includes determining a line of sight of a user relative to the display, acquiring a first image based on the synchronization signal, and processing the first image based on the line of sight of the user to generate a first processed image. Finally, the technique includes compositing first visual information and the first processed image to generate a first composited image, and displaying the first composited image on the display.

When switching sources, resolutions or refresh rates in a video distribution network, switching times are reduced by maintaining video lock and security authentication between a video switcher and a video sink. The scaler maintains video lock and security authentication by continuing to generate video timing data during switching events. The scaler also facilitates an aesthetically pleasing transition by generating image content data prior to and after the switching event.

Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer.

When switching sources, resolutions or refresh rates in a video distribution network, switching times are reduced by maintaining video lock and security authentication between a video switcher and a video sink. The scaler maintains video lock and security authentication by continuing to generate video timing data during switching events. The scaler also facilitates an aesthetically pleasing transition by generating image content data prior to and after the switching event.

Synchronization of display functions and various touch, stylus and/or force sensing functions for devices including a variable refresh rate (VRR) display is disclosed. In some examples, touch, stylus and/or force sensing functions can be synchronized with display frames and a display refresh rate can be adjusted by extended blanking of the display for one or more display frames. In other examples, touch, stylus and/or force sensing functions can be synchronized with display sub-frames and a display refresh rate can be adjusted by extended blanking of the display for one or more display sub-frames. Pre-warning synchronization signals can be generated to prepare one or more scan controllers to implement the appropriate scan events during and after extended blanking periods. Latency between the scan results and the corresponding image on the display can be corrected in software and/or firmware by time-stamping scan results or by dropping scan results from uncompleted scans.

A dynamic random access memory (“DRAM”) device is operable in either a normal refresh mode or a static refresh mode, such as a self-refresh mode. A cell plate voltage selector couples a voltage of one-half the supply voltage to the cell plate of a DRAM array in a normal refresh mode and in the static refresh mode when memory cells are being refreshed. In between refresh bursts in the static refresh mode, the cell plate voltage selector couples a reduced voltage to the cell plate. This reduces the voltage reduces the voltage across diode junctions formed between the source/drain of respective access transistor and the substrate. The reduced voltage reduces the discharge current flowing from memory cells capacitors, thereby allowing a reduction in the required refresh rate and a consequential reduction in power consumption.

A panel may be arranged to display image data, and a backlight may be arranged to illuminate a back of the panel. A timing generator may be arranged to control the refresh rate of the panel, and a modulator may be arranged to control the backlight based on an associated modulation frequency. A coordinator may be arranged to synchronize between the refresh rate and the modulation frequency when the refresh rate or the modulation frequency is changed.

The present invention relates to a system that facilitates multi-tasking in a computing environment. A focus area component defines a focus area within a display space—the focus area occupying a subset area of the display space area. A scaling component scales display objects as a function of proximity to the focus area, and a behavior modification component modifies respective behavior of the display objects as a function their location of the display space. Thus, and more particularly the subject invention provides for interaction technique(s) and user interface(s) in connection with managing display objects on a display surface. One aspect of the invention defines a central focus area where the display objects are displayed and behave as usual, and a periphery outside the focus area where the display objects are reduced in size based on their location, getting smaller as they near an edge of the display surface so that many more objects can remain visible. In addition or alternatively, the objects can fade as they move toward an edge, fading increasing as a function of distance from the focus area and/or use of the object and/or priority of the object. Objects in the periphery can also be modified to have different interaction behavior (e.g., lower refresh rate, fading, reconfigured to display sub-objects based on relevance and/or visibility, static, etc.) as they may be too small for standard rendering. The methods can provide a flexible, scalable surface when coupled with automated policies for moving objects into the periphery, in response to the introduction of new objects or the resizing of pre-existing objects by a user or autonomous process.

The invention discloses a method and system for adjusting the display refresh rate of a smart mobile terminal according to an application scene. The method comprises the following steps that S1, a system platform is operated through the mobile terminal, a drive interface for controlling the refresh rate of an LCD display screen is compiled in a kernel layer of a kernel operation system through the characteristic that the refresh rate of the display screen and a clock signal of the drive interface are in direct proportion, the interface recalculates the clock signal of the drive interface through the setting of the display refresh rate, and then the frame rate is controlled in real time; S2, the current application scene of the smart mobile terminal is matched to conform to a predefined scene; S3, a frame rate matching list is started, and the refresh rate of the LCD display screen on the current application scene is obtained; S4, the refresh rate of the LCD display screen is adjusted in real time. According to the method and system, the display refresh rate of the screen of the smart mobile terminal can be differentiated according to different application scenes, the refresh rate is lowered on the premise of guaranteeing the feeling of human eyes, and therefore the aim of greatly reducing power consumption of the display system is achieved.

The invention is suitable for the technical field of information and provides a method and device for adjusting the refreshing rate of a screen. The method includes the steps that a screen image of a current frame is obtained, whether the screen image of the current frame is the same with a screen frame of a previous frame or not is judged; if the screen image of the current frame is different from the screen image of the last frame, the current screen refreshing rate is adjusted to a first preset value; if the screen image of the current frame is the same with the screen image of the previous frame, the current screen refreshing rate is adjusted to a second preset value, and the second preset value is smaller than the first preset value. According to the method and device for adjusting the refreshing rate, when a dynamic image is displayed on a screen, the high screen refreshing rate is set to ensure the display fluency of the dynamic image, when a static image is displayed on the screen, the current screen refreshing rate is reduced, and therefore under the premise that the display effect of the screen is ensured, power consumption is lowered.

The invention provides a method and device for displaying screen refresh rate. The method comprises the steps of obtaining display information of application scenarios, wherein the display information comprises image display types corresponding to layers of the application scenarios; according to the image display types, searching for corresponding layer refresh rate; according to the layer refresh rate, calculating display clock frequency of a screen, and displaying the layers according to the calculated display clock frequency. By means of the method and device, the display screen can adopt different display clock frequencies according to the layers of the different application scenarios, so that different screen refresh rates are adopted for displaying, and the purposes of lowering power consumption and reducing heat radiation are achieved.

The invention discloses a plane and barrier detection method based on an RGB-D camera and an attitude sensor, and the method achieves the environmental three-dimensional information recognition with higher resolution, higher refresh rate and higher precision based on the RGB-D camera and the attitude sensor. The method can achieve the recognition of a ground passage, the judgment and early-warning of a ground cavity and various types of barriers and the recognition of scenes of going upstairs and downstairs, and is close to the visual sensing of an environment. Through the cooperation of the attitude sensor, a whole system is more flexible and portable, and the camera does not need to keep a fixed relative position with a user or any other ground reference object. When a visually-impaired person goes out, the camera can be placed at any body part which can photograph a three-dimensional environment. A portable computer or pad compatible with the RGB-D camera can be selected by himself or herself to achieve the same function.