7230results about "Cathode-ray tube indicators" patented technology

The invention relates to the technical field of display screen driving, in particular to a low-power-consumption display screen driving method and system based on the OLED technology, and the method comprises the steps: S1, carrying out the image feature detection, collecting the inter-frame brightness change rate, the sub-pixel gray level distribution and the regional temperature gradient, and generating a dynamic driving signal parameter; s2, voltage compensation adjustment: dividing a power consumption area according to a brightness change rate, calculating a brightness compensation coefficient and correcting the voltage by combining gray level distribution and a temperature gradient, and realizing sub-pixel voltage dynamic adjustment; and S3, refresh frequency control: adjusting a local refresh rate according to the compensation coefficient and the correction voltage, executing a frequency reduction strategy on a high-power-consumption area, triggering ghosting suppression on a low-power-consumption area, and applying a temperature threshold to constrain a refresh upper limit. According to the invention, energy-saving driving, ghost suppression and brightness balance of the OLED display screen are realized, and the display performance and the system intelligence are effectively improved.

Methods and apparatus for generative rendering. In some embodiments, an input visual content is operated on by a computational to perform a computer vision function and output generative display content. The generative display content may overlay the input content to be shown on a display system. In some embodiments, the generative display content replaces the video input stream for display.

The invention relates to the technical field of display, and particularly discloses an intelligent self-adaptive eye protection display system which sequentially comprises a content analysis module, an ambient light detection module, an eye protection parameter calculation module, a display parameter adjustment module and a user feedback module. The system identifies the screen content type and the dynamic degree in real time, synchronously detects the ambient light intensity and the color temperature, obtains the optimal combination of the blue light proportion, the brightness, the contrast ratio, the color temperature and the sharpness through a multi-target optimization model, and smoothly adjusts the display through driving; a user can score, finely adjust and mark a scene, and feedback data enters a self-learning engine to iteratively update a parameter weight so as to form a content-environment-user closed loop. The system can significantly reduce blue light harm and improve visual comfort without external hardware.

A multi-view (MV) system with multiple MV displays utilizes state information to assign personalized versions of content to display to viewers, thereby providing a coordinated MV display experience. These systems may include a sensing system for detecting viewers and other environmental conditions, and a controller to manage the content assignments for the MV displays. The controller can manage the viewer states, viewer state transitions, and content assignment changes based on changes of those viewers and conditions. The systems can be utilized to simultaneously present coordinated and personalized content to multiple viewers of multiple MV displays.

The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display driving control method and system. Comprising the following steps: SS01, multi-modal sensing and state triggering: fusing a user distance, a fixation point coordinate and ambient light illumination in real time by using an integrated sensor, and triggering an eye protection mode or a self-adaptive sleep mechanism according to the user distance, the fixation point coordinate and the ambient light illumination, SS02, image partitioning and strategy generation: dividing a screen into N * M partitions, and SS03, distinguishing a dynamic region from a static region according to the brightness histogram and the motion vector of each partition, and outputting differentiated refresh rates and backlight strategies, and SS03, performing big data learning and model optimization, and collecting user behaviors. The system has the advantages that the infrared proximity sensor, the eyeball tracking sensor, the distance sensor and the ambient light sensor are integrated through the multi-mode sensing and state triggering module, multi-dimensional data such as user distance, fixation point coordinates and ambient light illuminance are fused in real time, and active intelligent sensing of the user state and the environment is achieved.

The invention relates to the technical field of panel display brightness adjustment, and discloses a panel display module brightness adjustment method based on multi-sensor fusion. The method comprises the following steps: collecting multi-source sensor data of a panel display module; processing multi-source sensor data by using a dynamic feature fusion algorithm, distributing dynamic weights according to the real-time confidence of each sensor data source through a weighted fusion mechanism, and generating a brightness adjustment feature set; constructing a dynamic brightness adjustment index table, representing display partition brightness parameters by nodes, representing visual relevance among display partitions by edges, and updating node attributes and edge relevance strength in real time based on an environment change triggering mechanism; according to the brightness adjustment feature set, executing hierarchical association extension calculation in a dynamic brightness adjustment index table, and dynamically determining a brightness optimization action range; and in the optimization action range, synchronously analyzing the color deviation tolerance, the power consumption constraint condition and the visual comfort index through a multi-dimensional evaluation algorithm, and generating a brightness adjustment decision parameter.

The invention provides a visual fatigue relieving method based on ambient light self-adaption and an AI algorithm, and relates to the technical field of visual health protection. The visual fatigue relieving method based on ambient light self-adaption and the AI algorithm comprises the following specific steps: S1, data acquisition: acquiring a user eye image sequence in real time through a high-frame-rate camera; and S2, parameter extraction: when the user uses the eye for the first time, testing the eyes by combining the adjustable light source with ambient light. Multi-dimensional features (such as eyeball movement, blinking mode, pupil function and the like) of eyes are collected in real time through a high-frame-rate camera, an individualized base line is established and a fatigue rate value is dynamically calculated in combination with data of an ambient light sensor, and conversion from passive response to active prevention is realized. Through a hierarchical intervention strategy (such as brightness adjustment, blue light control and forced rest), the visual load is remarkably reduced, the intervention efficiency is improved, and the problem of insufficient adjustment hysteresis and individual adaptability in the prior art is solved.

The invention provides a backlight dynamic refreshing method and system based on content change frequency, and is applied to the field of image data processing. According to the method, the inter-frame variable quantity of the current image content of the display screen is pre-collected, whether the image refreshing speed is matched with the backlight response or not is judged, the pixel change rate in unit time is calculated based on the frame difference method, the content change frequency index is reasonably divided, the backlight PWM parameters are dynamically adjusted in combination with user setting, and the display quality is improved. The response coordination of the display screen under the dynamic image is effectively improved, when the frame rate fluctuation is recognized, the gray scale compensation frame is introduced and the brightness change slope is limited, and the problems of smear, splash screen and the like caused by asynchronous refreshing can be relieved.

Some embodiments provide a method for initiating a video conference using a first mobile device. The method presents, during an audio call through a wireless communication network with a second device, a selectable user-interface (UI) item on the first mobile device for switching from the audio call to the video conference. The method receives a selection of the selectable UI item. The method initiates the video conference without terminating the audio call. The method terminates the audio call before allowing the first and second devices to present audio and video data exchanged through the video conference.

An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and including a protrusion formed on the first surface, a guiding element movably connected to the fixed portion and including a through hole, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly use for driving the guiding element to move for moving the first blade. The optical axis passes through the through hole. The first surface has a first accommodating space having a recessed structure to accommodate the guiding element, and the protrusion extends toward the first blade.

The invention relates to the technical field of vehicle-mounted display, and discloses a vehicle-mounted HUD environment illumination adaptive brightness adjusting system, which comprises an illumination acquisition module, a parameter analysis module, a model construction module, a brightness calculation module, an error evaluation module, a calibration correction module, a threshold setting module, a result output module, a feedback optimization module, a system regulation module and the like. The illumination acquisition module analyzes the illumination parameter stability and interference difference and generates an illumination perception state value; the parameter analysis module screens an optimal brightness and light intensity combination; the model construction module is used for training samples to establish a brightness and light intensity relation model; the brightness calculation module generates a brightness threshold by combining real-time illumination data mapping; the error evaluation and calibration correction module optimizes a calculation rule; and the feedback optimization module operates feedback adjustment parameters to finally generate an environment illumination adaptive brightness adjustment scheme. The system realizes accurate and dynamic adjustment of the brightness of the vehicle-mounted HUD, effectively adapts to the environment illumination change, improves the display effect and the driving safety, and has the characteristics of self-learning and self-optimization.

The invention relates to the technical field of energy-saving management, in particular to a touch screen power consumption monitoring and energy-saving control method, which comprises the following steps of: based on a real-time power consumption state of a touch screen, detecting matching between brightness and ambient light intensity, acquiring brightness optimization parameters, monitoring association between refresh frequency and user behaviors, and analyzing pixel distribution; identifying an inactive area and reducing energy consumption; detecting screen resource allocation in a multi-task scene; balancing screen power consumption and equipment performance; monitoring power consumption fluctuation; according to the invention, by acquiring the matching degree of the screen brightness and the ambient light intensity, energy waste is avoided, the refresh frequency of an invalid area is reduced, the image processing load is reduced, screen pixel distribution is identified, the energy consumption output of an inactive area is reduced, screen resource allocation and energy consumption configuration are optimized in a multi-task scene, the scheduling accuracy is improved, and the user experience is improved. Performance and power consumption are balanced, screen sensitivity and stability are ensured, and efficient screen power consumption regulation and control are achieved.

The embodiment of the invention discloses a 4K splicing processor and a 4K splicing display system. The 4K splicing processor comprises a driving circuit used for processing a 4K resolution signal, the driving circuit comprises an FPGA chip U5, TVS array chips U10, U11, U12 and U13 and DP signal line connectors CN9 and CN10; the model of the U5 is Spartan-6, the models of the U10, the U11, the U12 and the U13 are all RClamp0524P, the CN9 is connected with the U5 through the U10 and the U11, and the CN10 is connected with the U5 through the U12 and the U13; the U5 receives the input 4K resolution signal through the CN9 to process the 4K resolution signal and outputs the processed 4K resolution signal through the CN10 to achieve 4K resolution signal looping. According to the 4K splicing processor and the 4K splicing display system, the problem that 4K splicing display system equipment is complex is solved.

The invention relates to the technical field of intelligent pixel-level brightness balancing methods, in particular to an intelligent pixel-level brightness balancing method, which comprises the following steps of: acquiring real-time frame image data and screen temperature sensor data of a display panel; performing real-time semantic segmentation on the real-time frame image data to obtain a semantic tag graph; converting the screen temperature sensor data into a full-screen temperature distribution diagram according to a heat conduction model interpolation algorithm, and distributing a corresponding brightness compensation scheme for each pixel region of the display panel in combination with the semantic tag diagram; and dynamically setting a global brightness compensation power consumption budget according to the electric quantity of a system battery and a performance mode, performing power consumption constraint optimization on a brightness compensation scheme of each pixel region, and generating a final partition compensation instruction set. The OLED pixel aging unevenness is delayed, the burn-in risk is avoided, and the system power consumption control and the display quality guarantee are considered at the same time.

A display device may include a display panel which includes pixels, a data driver which provides data voltages corresponding to output image data to the pixels, and a data converter which generates a compensation grayscale from reference compensation values for compensating at least one selected from a color shift and a luminance shift corresponding to a temperature based on an input temperature, an input grayscale included in input image data, and an input luminance, and converts the input image data into the output image data based on the compensation grayscale.

A method for streaming dynamically changing user interface data from a server to a client, including resizing user interface data in accordance with a client display, repeatedly transmitting in the form of IP packets, the user interface data in a lossy compression format, for each transmission, if an acknowledgement is received that all packets have been received, then increase the number of IP packets in the next transmission, and if the increased number of IP packets is sufficient to transmit the user interface data in a lossless compression format, then retransmit previously transmitted user interface data in the lossless compression format, including partitioning previously transmitted user interface data into display strips, and for each strip, if the user interface data is unchanged, transmit the strip in the lossless compression format, and if the user interface data has changed, return to the repeatedly transmitting for the changed user interface data.

A viewpoint setting unit of an image data generation device sets a reference viewpoint on a basis of position and orientation information regarding a head-mounted display, and a reference image drawing unit generates a reference image in a field of view corresponding to the reference viewpoint. An additional data generation unit acquires color information regarding an occluded part not represented in the reference image from a different viewpoint as additional sampling data. A reprojection unit of the head-mounted display transforms the reference image into an image from a latest viewpoint and determines a pixel value of the hidden part using the additional sampling data.

Disclosed is an LED driver circuit, a multi-wire communication device and a method for an LED display system. The device comprises a controller providing at least one of a configuration data packet, a brightness data packet, and a display data packet; the LED driver circuits, wherein the LED driver circuits are cascaded to provide a first data channel using first data ports and second data ports, the LED driver circuits are connected in parallel to provide a second data channel using third data ports. The device relays an enable signal or an address data packet stage by stage using the first data channel, transmit at least one of the configuration data packet, the brightness data packet and the display data packet in parallel using the second data channel. The number of the cascaded LED driver circuits can be infinite, the number of data wires is reduced, data rate is increased.

The invention relates to the technical field of LED display, and discloses an LED display color calibration method, device and system. The method comprises the following steps: applying a reverse test voltage to LED pixels in an LED display panel in a display frame blanking period, and calculating a real-time junction temperature value and a service life state value of each LED pixel; discrete phase coding reconstruction is carried out on the original display driving signal to obtain a temperature self-adaptive driving compensation signal; a temperature-sensitive fluorescent composite material layer is arranged on a substrate layer of an LED display panel, and the temperature-sensitive fluorescent composite material layer is activated through blue light components emitted by LED pixels to obtain an optical passive compensation spectrum; dividing the LED display panel into a plurality of independent control areas and generating an inter-area cooperative compensation parameter set; and constructing a pixel-level point diffusion compensation function and performing spatial domain dynamic compensation to obtain an LED display output image after color calibration. According to the invention, the problem of non-uniform area caused by manufacturing batch difference of a large-size display screen is effectively solved.

The invention discloses a brightness compensation method and device, a storage medium and electronic equipment, and the method comprises the steps: shooting an initial MURA distribution image of a display screen; identifying and classifying the initial MURA distribution image by using an image classification model to obtain a classification result; according to a classification result, configuring corresponding optimal shooting parameters, performing at least one exposure acquisition on the display screen, and obtaining an image set containing one or more exposure images; based on a classification result, fusing the image set to generate a target brightness image; comparing the target brightness image with the theoretical brightness image to generate a pixel brightness deviation graph; and finally, selecting a corresponding optimal compensation parameter set according to a classification result, and performing brightness compensation on the display screen based on the compensation parameter set and the pixel brightness deviation graph. According to the embodiment of the invention, the problem of non-uniform pixel brightness of different screen bodies caused by manufacturing process fluctuation can be solved.

In an example, a device may include logic to receive a plurality of video frames from a video source, logic to process the plurality of video frames, logic to provide at least some of the plurality of video frames to a video sink, and logic to reduce a display latency of each of the video frames provided to the video sink by changing the frame rate of some or all of the frames.

A display device including: a display panel including a plurality of pixels; and a panel driver connected to the display panel, the panel driver configured to generate stress data representing a degradation amount of the display panel, to generate corrected image data by adjusting input image data based on the stress data, to determine a luminance of the display panel based on a display brightness value or the corrected image data, to adjust a second power supply voltage based on the stress data and the luminance of the display panel, and to drive the display panel based on the corrected image data, a first power supply voltage and the second power supply voltage.

The present disclosure provides a display device and a device control method. The method comprises: acquiring a current ambient light value; mapping the current ambient light value to a static backlight value on the basis of a static backlight curve; acquiring a brightness factor value; and calculating a global brightness parameter on the basis of the static backlight value and the brightness factor value. The static backlight curve is used to characterize a mapping relationship between the ambient light value and the static backlight value, and the static backlight value is used to characterize the screen brightness of a user interface. Further, the brightness factor value is calculated on the basis of the brightness values of pixel points in a current display image and brightness value weights. The method further comprises: setting the display brightness of a display according to the global brightness parameter, and controlling the display to display the user interface on the basis of the display brightness. According to the method, the display brightness of the display is adjusted through a plurality of dimensions including ambient light, static backlight, and image brightness, thereby improving the precision of brightness adjustment for the entire device.

The invention relates to the field of display adjustment, in particular to a self-adjustment liquid crystal display based on multi-source data analysis and an adjustment method thereof.The method comprises the steps that an eyeball recognition model based on a YOLOv8 frame is constructed, a comprehensive loss function is constructed, and a weighted Foca loss item is determined according to the ambient light intensity and the real diameter of an eyeball; the eyeball boundary constraint item is determined based on the real eyeball diameter and the predicted eyeball diameter, the binocular constraint item is determined based on the binocular distance, and the predicted eyeball diameter and the binocular distance are determined by calculating the eyeball recognition area; determining an eyeball change area and a blinking frequency value of the user through an eyeball recognition model; and calculating an expected brightness value, and carrying out brightness self-adjustment control on the liquid crystal display based on the expected brightness value. The self-adjusting liquid crystal display based on ambient light and vision is realized, accurate brightness adjustment can be realized in combination with multi-source data such as the eyeball state of a user and the ambient light intensity, so that the user experience is improved, and the visual fatigue is reduced.

Systems and methods for defect detection on displays are disclosed according to various embodiments. In one example, a disclosed method for detecting defects on an electronic device display comprises connecting an electronic device to a server computer having a processor and a non-transitory computer readable storage medium storing test software for testing the electronic device display. The method further comprises displaying an outline on the electronic device display, where the outline traces a perimeter of the electronic device display, and where the outline comprises pixels of a first color. The first color differs from a color of a pixel that is not on the perimeter of the electronic device display. The method further comprises capturing a digital image of the electronic device while the electronic device is displaying the outline, transmitting the digital image to the server computer, and analyzing the digital image at the server computer.

Aspects of the present disclosure are directed to application multitasking in a shell with a three-dimensional environment. Implementations immerse a user in a three-dimensional environment via an artificial reality system, such as a display environment for a system shell. The system shell can execute applications (e.g., system shell applications, remoted applications, etc.). An executing application can correspond to a displayed virtual object (e.g., panel). The system shell can concurrently execute two, three, or more applications and the three-dimensional environment can concurrently display two, three, or more corresponding virtual objects that display contents for the executing applications. Implementations of a mode manager can manage a mode for the three-dimensional environment / system shell. Example modes include cooperative mode and exclusive mode. Implementations of cooperative mode permit concurrent display of multiple virtual objects from different applications while the exclusive mode permits display of virtual objects only from the executing application entering exclusive mode.

To display a low-resolution image at higher resolution and furthermore to reduce an afterimage.SOLUTION: Resolution is made higher by super-resolution processing. In this case, the super-resolution processing is performed after frame interpolation processing is performed. Further in that case, the super-resolution processing can be performed using a plurality of processing systems. Therefore, super-resolution processing can be performed at high speed even when frame frequency is made higher. An afterimage can be reduced since frame rate doubling is performed by frame interpolation processing.SELECTED DRAWING: Figure 1

The invention provides a processing method and device of a spliced display screen and a spliced display device, and belongs to the technical field of display. The spliced display screen comprises a plurality of sub-display screens spliced together, and the processing method of the spliced display screen comprises the steps that all the sub-display screens are controlled to display a full-white picture, and RGB data of each sub-display screen are detected; converting the RGB data into brightness and color coordinates of the sub display screens; sequentially performing color temperature correction, gamma correction and brightness correction on each sub-display screen according to the brightness and the color coordinates of the plurality of sub-display screens, so that the difference value between the color temperature of each sub-display screen and a target color temperature is not greater than a preset first threshold value, the difference value between the maximum brightness of each sub-display screen and the target brightness is not greater than a preset second threshold value. The display uniformity of the spliced display screen can be improved.

The present disclosure generally relates to screen content sharing. In some embodiments, user interfaces are provided for selecting screen content for sharing. In some embodiments, user interfaces are provided for requesting a computer system to share screen content. In some embodiments, user interfaces are provided for granting a request to share control of screen content. In some embodiments, user interfaces are provided for displaying representations of an input.

In an example, a device may include logic to receive a plurality of video frames from a video source, logic to process the plurality of video frames, logic to provide at least some of the plurality of video frames to a video sink, and logic to reduce a display latency of each of the video frames provided to the video sink by decoding and / or processing only portions of some frames.