584 results about "Flicker" patented technology

The embodiment of the invention provides a display panel and a display device, the display panel comprises a substrate, a plurality of sub-pixels and a first shading layer, the sub-pixels comprise shared sub-pixels and peep-proof sub-pixels, the shared sub-pixels comprise shared light-emitting devices, and the peep-proof sub-pixels comprise peep-proof light-emitting devices; the first shading layer is located on the side, away from the substrate, of the peep-proof light-emitting device and comprises a first shading structure and an opening area; the peep-proof sub-pixel comprises a peep-proof sub-pixel A, the peep-proof sub-pixel A comprises a peep-proof light-emitting device A, the peep-proof light-emitting device A is partially overlapped with the first shading structure in the direction perpendicular to the plane where the substrate is located, and the shared light-emitting device is not overlapped with the first shading structure. According to the display panel, the small-view-angle brightness of the first peep-proof sub-pixels can be compensated, the flicker problem when the display panel switches different modes is solved, and the user experience is improved.

Disclosed is a display device that reduces a flicker phenomenon that occurs in a low-speed operation in a Variable Refresh Rate (VRR) mode by tuning a bias voltage based on a refresh rate and supplying the tuned bias voltage to a display panel. The display device includes a display panel including a plurality of pixels; and a power supply for supplying a bias voltage and an anode reset voltage to the plurality of pixels, wherein when the display device operates in a VRR mode, the display device is configured to adjust at least one of a level and an application time of the bias voltage based on a refresh rate in an anode reset frame.

The invention provides an array substrate and a display device, and the array substrate comprises a substrate; the gate insulating layer is arranged on the substrate; the data line is arranged on the gate insulating layer; the first passivation layer is arranged on the gate insulation layer and covers the data line; the first shielding electrode is arranged on the first passivation layer, and the first shielding electrode is connected with the direct-current voltage signal output end; the second passivation layer is arranged on the first passivation layer and covers the first shielding electrode; the common electrode is arranged on the second passivation layer, and a part of the common electrode is overlapped with the data line and the first shielding electrode; the pixel electrode and the common electrode are arranged on the same layer or stacked, and the pixel electrode is insulated from the common electrode. The first shielding electrode is connected to the direct-current voltage signal, so that the data voltage signal on the data line does not affect the signal on the common electrode, coupling capacitance between the common electrode and the data line is avoided, and poor display of picture flicker is avoided.

The invention provides an intelligent traceless erasing method and system for video picture characters, and relates to the technical field of video stream processing, and the method comprises the steps: carrying out the space-time dual-domain feature extraction of a preprocessed first video frame sequence, and obtaining a first space-time feature; and establishing a space-time double-domain attention model according to the first space-time feature, the space-time double-domain attention model calculating fusion space domain and time domain features through cross attention, dynamically distributing fusion weights based on the character movement speed, obtaining a second video frame sequence of the to-be-processed video stream, preprocessing the second video frame sequence, and extracting a second space-time feature. Texture and motion characteristics of front and back frames are synchronously referenced through a space-time double-domain attention model, so that the time sequence coherence of a repaired area is improved, a time sequence consistency compensation mechanism driven by an SSIM is combined, the flicker frequency is reduced, and the time-space domain weight is adaptively adjusted according to the character speed through a dynamic weight distribution strategy, so that the time sequence coherence of the repaired area is improved. And stable erasing and rapid moving of characters are realized.

The invention discloses an LED display screen partitioning method, which comprises the following steps: obtaining content information to be displayed, and performing feature extraction and classification on display content to obtain display feature parameters of different regions; for each partition, calculating an optimal display parameter by adopting a parameter optimization algorithm according to the display characteristic parameter of the partition; interpolation and transition processing are carried out on parameters of adjacent partitions at the boundary of the partitions, and abrupt and flicker during partition switching are avoided; through a historical data analysis and prediction algorithm, the display content in a period of time in the future is predicted, and partitioning and parameter optimization are carried out in advance; according to the characteristics and changes of the display content, the display effect is adaptively optimized, hardware resources are saved to the maximum extent while the display quality is guaranteed, and intelligent and fine management of the display content is achieved through comprehensive application of technologies such as dynamic partitioning, parameter optimization, smooth transition and predictive analysis.

The embodiment of the invention provides a display panel, a driving method thereof and a display device, relates to the technical field of display, and can effectively improve the flicker phenomenon under low-frequency driving. The display panel comprises a pixel circuit, the pixel circuit comprises a driving module and a bias adjusting module, the control end of the bias adjusting module is electrically connected with a first scanning line, the first end of the bias adjusting module is electrically connected with a bias signal line, the second end of the bias adjusting module is electrically connected with the first end of the driving module, the first scanning line provides a first scanning signal, and the bias signal line provides bias voltage; the display panel has a first frequency, a driving period under the first frequency comprises a write-in frame and a plurality of holding frames, and the write-in frame and the holding frames respectively comprise at least one light emitting period; in the light emitting period, the total duration of the effective level of the first scanning signal is the first duration; at the first frequency, the first durations corresponding to at least part of the holding frames and the write-in frames are different, and / or the bias voltages corresponding to at least part of the holding frames and the write-in frames are different.

The invention discloses a driving method and device of a display panel and a display device, and belongs to the technical field of display. The method comprises the following steps: acquiring a frequency switching instruction under the condition that a display panel performs display by at least two display partitions with different refresh frequencies; the frequency switching instruction is an instruction for controlling at least one display partition to perform frequency switching; obtaining a preset brightness change value of each display subarea before and after frequency switching if the corresponding display subarea is controlled to perform frequency switching according to the frequency switching instruction; according to the preset brightness change value of each display subarea, determining a compensation value of the initialization voltage in the process of controlling the corresponding display subarea to perform frequency switching according to the frequency switching instruction, and compensating the initialization voltage according to the compensation value, so that the actual brightness change of each display subarea before and after the frequency switching is smaller than a preset brightness threshold value; wherein the initialization voltage is supplied to the sub-pixels. According to the embodiment of the invention, the problem of frequency switching flicker of the display panel during partition multi-frequency display can be solved.

The imaging device includes: an imaging element; a flicker detection unit that detects a flicker component from an image outputted from the imaging element; a correction unit that corrects the flicker component included in the image; and a control unit that makes a flicker detection adaptive setting that facilitates detection of the flicker component in the flicker detection unit in response to a shift from a normal imaging mode to a flicker detection mode, and causes an image display unit to display an image in which the flicker component has been corrected by a flicker correction unit.

The embodiment of the invention provides a method and device for detecting the flicker frequency of an ambient light source and electronic equipment, relates to the field of terminals, can detect the flicker frequency of the ambient light source, and is high in detection precision and low in cost. The electronic equipment comprises a light intensity sensing module, an analog-to-digital conversion module and a data processing module, the light intensity sensing module is connected with the analog-to-digital conversion module, and the analog-to-digital conversion module is connected with the data processing module; the light intensity sensing module comprises a photodiode and is used for detecting a light intensity signal of an ambient light source and converting the light intensity signal into an analog voltage signal; the analog-to-digital conversion module is used for converting the analog voltage signal into a digital voltage signal; the analog-to-digital conversion module is an audio chip, and the audio chip is connected with a microphone and / or a loudspeaker; the data processing module is used for calculating the flicker frequency of the ambient light source according to the digital voltage signal.

A method includes obtaining multiple image frames. The method also includes selecting, using at least one processing device of an electronic device, an asymmetrical image pair from the multiple image frames. The asymmetrical image pair includes a first image frame and a second image frame, where the first image frame has a shorter exposure than the second image frame. The method further includes identifying, using the at least one processing device, one or more features based on the asymmetrical image pair. The method also includes determining, using the at least one processing device, whether the first image frame contains flicker based on the one or more features. In addition, the method includes enabling or disabling, using the at least one processing device, the first image frame as a reference candidate based on the determination whether the first image frame contains flicker.

The application discloses a driving method, device and equipment of a pixel circuit, relates to the technical field of display, and can solve the problems of too large amplitude of luminance difference between non-emitting and emitting stages in the picture display process, too long non-emitting time, and too strong flicker caused by non-emitting or weak emitting in part of the period. The application can flexibly and non-uniformly configure the duty cycle of the time length of each level stage in each control period, such as flexibly configuring the time length of one or more level stages for emitting light after anode reset according to whether each control period is used for anode reset, or differentiating the driving of the level stage not used for emitting light in the refresh frame period and the holding frame period based on different reset frequencies and / or different display refresh rates, so that the emitting light of the multiple control periods is uniform or the emitting duty cycle is improved to optimize the screen flicker, better display and eye protection effects are achieved under the premise that the pixel can normally emit light in each control period.

The embodiment of the invention provides a display driving method, a display driving device, a display driving system and display equipment, and relates to the technical field of display. The display driving method comprises the following steps: acquiring a data writing instruction for current frame display data; the data writing instruction comprises gray scale data information and black frame insertion control information of each partition; for each partition, a display driving signal is output to the corresponding constant current source based on the gray data information, and a black insertion control signal is output to the corresponding constant current source according to the frequency corresponding to the black insertion control information based on the black insertion control information; wherein the display driving signal is used for controlling the constant current source to output corresponding driving current, and the black frame insertion control signal is used for closing the constant current source. According to the embodiment of the invention, the black insertion control signal can be output to the corresponding constant current source according to the frequency corresponding to the black insertion control information, so that the effective time period proportion difference of the black insertion control signal of each frame of display data of each partition is small, the display brightness is not influenced, and the problem of display flicker is avoided.

The invention discloses a training-free local video style migration method and system, and the method comprises the steps: carrying out the denoising inversion of a video frame of an original video through a content branch, and obtaining the potential content features Zt (t = 1-T) of different timestamps; in the process of denoising inversion of the original video, a first video frame of the original video is masked, and the mask is transmitted to all video frames of the original video based on point matching; the method comprises the following steps of: performing de-noising inversion on a reference image by a style branch to obtain style potential characteristics # imgabs0 # of different timestamps, performing de-noising on an initial migration potential characteristic # imgabs1 # based on the initial migration potential characteristic in an editing branch, performing style migration on the migration potential characteristics based on an AdaIN style migration technology in a de-noising process to obtain a style migration result, and outputting the style migration result. And decoding to pixel representation frame by frame through a decoder to serve as a video after local style migration. According to the method, the requirement of a user on local area migration can be met, and meanwhile flicker and artifacts caused in the migration process are reduced.

The invention discloses a PWM frequency adjusting method, electronic equipment and a readable storage medium, and belongs to the technical field of terminals, the method comprises the following steps: receiving an interface switching operation, the interface switching operation being an operation of triggering the electronic equipment to switch between a first interface and a second interface; in response to the interface switching operation, the electronic device can display an interface transition effect corresponding to the interface switching operation and adjust the PWM frequency in the process of displaying the interface transition effect, and the interface transition effect comprises at least one of a transition animation, a color gamut change effect, an interface transparency change effect and a brightness change effect. According to the method and the device, the screen flash of the display screen caused by the adjustment of the PWM frequency is covered through the interface transition effect, and the display effect of the screen is improved.

The invention provides a picture frame rate adjusting method and device of a display screen, equipment and a storage medium, and the method comprises the steps: carrying out the prediction processing of a vertical flyback window through detecting the time interval change of adjacent scanning lines in a display controller, and obtaining the prediction time of the vertical flyback window; performing atomic locking processing on the multi-stage frame buffer according to the vertical flyback window prediction time to obtain a buffer switching control signal; and performing rendering completion degree analysis processing on the GPU rendering pipeline according to the buffer switching control signal, obtaining a rendering completion degree evaluation result, reconstructing a multi-stage buffer synchronization strategy according to the rendering completion degree evaluation result, and adjusting the frame rate of the display screen based on the reconstructed synchronization strategy. By accurately predicting the vertical flyback window opportunity and implementing atomic buffer region locking, accurate synchronization of frame buffer region switching and the position of a display scanner is ensured, the problem of single-frame flicker caused by improper buffer region switching opportunity is effectively solved, and the visual continuity of professional display application is improved.

The invention discloses a brightness compensation method and device of a display panel and electronic equipment. The compensation method comprises the steps of determining a target source electrode driving circuit used for driving a target sub-pixel according to a first lookup table under the condition that a polarity flip compensation (POLC) function is started; determining the target pixel polarity of the target sub-pixel according to the second lookup table or the third lookup table; the second lookup table comprises a mapping relation between the sub-pixels in the driving boundary area and the pixel polarity; the third lookup table comprises a mapping relation between sub-pixels in a non-driving boundary area and the polarity of the pixels; and under the condition that the polarity of the sub-pixel in the driving range corresponding to the target source driving circuit needs to be overturned, adjusting a gray scale compensation value corresponding to the polarity of the target pixel, and obtaining a first target gray scale compensation value for compensating the brightness of the target sub-pixel. In this way, a flicker elimination (VDF) function and a POLC function using a variable refresh rate can be well compatible for use.

The invention discloses a visual multi-screen splicing control method for a conference room, and relates to the technical field of multi-screen splicing, and the method comprises the steps: S1, multi-source input content dynamic segmentation, S2, multi-screen state matrix construction, S3, dynamic fusion weight calculation, S4, nonlinear gradient correction, S5, distributed synchronous rendering, and S6, closed-loop feedback optimization. By analyzing feature distribution of display content in real time and combining a nonlinear gradual change correction technology, the common problems of edge bright color jumping and transition stiffness when a traditional spliced screen displays dynamic content are effectively solved, specifically, an algorithm automatically adjusts parameters of a fusion area according to content types, and the fusion efficiency is improved. Transition of colors and brightness among screens better conforms to human eye perception characteristics, the system can adjust the width of a fusion area and the gradient curve slope in a self-adaptive mode by dynamically perceiving the content movement speed and complexity, and moire and flicker phenomena are restrained while content details are reserved.

The invention discloses a depth estimation method and device for any video and a storage medium, and belongs to the field of visual depth estimation. The method comprises the following steps: carrying out annotation processing on a scene video sample to obtain a deep annotation video data set; screening based on the depth labeling video data set and the TartanAir data set to obtain a spatio-temporal joint training sample; the method comprises the following steps: performing time sequence embedding on a multi-head attention layer in an encoder of a DepthAnything model to obtain a space-time combined multi-head attention layer, and constructing an initial TC-DepthAnything model; training the initial TC-DepthAnything model by adopting a space-time joint training sample, and performing constraint by adopting an overall training loss function formed by space consistency loss and time domain regularization loss in the training process to obtain a target TC-DepthAnything model; and inputting any video into the target TC-DepthAnything model to obtain a predicted depth video. The problem of time sequence jitter of DepthAnything in video depth estimation is solved, and flicker artifacts and motion blur in a dynamic scene are inhibited. And video depth estimation with a large application range and an accurate estimation result is realized.

The embodiment of the invention discloses a display panel, a driving method and a display device. The display panel comprises a pixel circuit and a light-emitting element. The pixel circuit comprises a data write-in module, a driving module and a compensation module, the compensation module is configured to be controlled by a first scanning signal, the data write-in module is configured to be controlled by a second scanning signal, V11 is smaller than V11 ', or V11 is smaller than V12; wherein V11 is the high-level voltage of the first scanning signal in the refresh frame, V11'is the high-level voltage of the first scanning signal in the holding frame, and V12 is the high-level voltage of the second scanning signal in the refresh frame. According to the embodiment of the invention, the compensation module can be prevented from generating leakage current in the light-emitting stage of the refresh frame, or the compensation module can be prevented from being turned off in the bias adjustment stage of the holding frame, so that the voltage of the grid of the driving transistor is stabilized, deviation between the light-emitting brightness of the light-emitting element and the target brightness is prevented, and flicker and abnormal splash screen phenomena of the display panel are avoided.

The invention relates to the technical field of screen detection, in particular to a vehicle-mounted display screen flicker detection method and device, equipment and a storage medium. According to the method, the light intensity time change curve of the display screen to be tested under the specific test video is obtained, the light intensity fluctuation condition of the screen to be tested is analyzed according to the curve, the light intensity abnormal fluctuation period is determined, the light intensity change direction is considered, the flicker type abnormal frequency is calculated, and corresponding measures are taken according to the flicker frequency. For example, display parameters are adjusted or display screen replacement is prompted. According to the method, the flicker problem can be monitored in real time and accurately recognized, and the display setting is automatically adjusted to relieve or eliminate flicker, so that the display quality and the driving safety of the vehicle-mounted display screen are improved.

The invention discloses a full-color LED screen optical adjustment and intelligent energy-saving detection method, and relates to the field of LED screen adjustment and energy saving. Ambient light data is collected through a bionic distributed sensor network, and features such as illumination intensity and color temperature are extracted through PCA dimension reduction; constructing a human eye visual perception model based on the CIE chromaticity diagram, and introducing a visual adaptation factor to dynamically adjust color gamut mapping; dividing a screen dimming area, and calculating an optimal brightness value by adopting a local contrast enhancement algorithm; the RGB ratio is optimized through a genetic algorithm, and the color difference between the mixed spectrum and the target color gamut is minimized; power consumption is monitored in real time, an energy consumption prediction model is established, and an optimization strategy is triggered when a predicted value exceeds a threshold value. The color gamut coverage rate is high, the local contrast ratio is excellent, and the comprehensive energy-saving rate is greatly improved; blue light harm is reduced, screen flicker is eliminated, the visual comfort is improved, the functions of peep prevention and block chain energy consumption evidence storage are achieved, and the display quality, the energy efficiency performance and the use safety of the LED screen are comprehensively improved.

The embodiment of the invention provides a picture processing method, electronic equipment, a computer storage medium and a computer program product. The picture processing method comprises the following steps: in a virtual shooting process, carrying out picture-based pixel flicker analysis on a to-be-presented picture on a screen for presenting a virtual scene; based on a pixel flicker analysis result, determining flicker pixels to be processed in the picture; and performing flicker removal processing on the to-be-processed flicker pixels, and presenting a picture subjected to flicker removal processing on a screen. Through the embodiment of the invention, the quality of the to-be-presented picture on the screen for presenting the virtual scene is improved, and the quality of the video obtained through virtual shooting is further improved.

Techniques and systems for enhanced detection and correlation of transient anomalies in frames or graphics displayed on a display screen, such as flicker events. In one example, a method includes obtaining luminosity measurements of a display acquired over a series of frames depicted on the display, processing the luminosity measurements to form a luminosity signature for the series of frames, and detecting transient anomalies for the display based at least on the luminosity signature.

The invention relates to the technical field of display screen brightness adjustment, in particular to a display screen brightness control method and system based on digital information processing. The method comprises the following steps of: obtaining a video brightness characteristic value of each frame of video image in a video through brightness deviation of the video image, a brightness flicker condition on a time sequence and a violent change amplitude condition; based on the screen brightness demand condition of the user brightness adjustment behavior, weighted relation fitting is carried out in combination with the environment brightness and the video brightness characteristic value, a brightness adjustment fitting relation at the moment is obtained, and in-advance self-adaptive screen brightness adjustment and control are carried out on a video which is not played subsequently through the fitting relation. Through the brightness change and the adjustment condition of the video played by the user, the screen brightness of subsequent video playing is adjusted in combination with the ambient brightness, so that the brightness switching of the user is reduced to improve the watching experience of the user.

A device for image processing includes an image sensor configured to capture a first set of image frames; a buffer configured to store information indicative of luminance of each image frame of the first set of image frames; and processing circuitry configured to: retrieve, from the buffer, the information indicative of luminance of each image frame of the first set of image frames; determine a flicker correction parameter based on the luminance across each of the first set of image frames; and generate additional image frames that are for display based on the flicker correction parameter.

The invention relates to a display method, a display device and a storage medium. The display method comprises the steps of determining current display brightness of a display screen of the electronic equipment; in response to the fact that the current display brightness is smaller than a first brightness threshold value and smaller than a second brightness threshold value, the first frequency is determined as the target dimming frequency, and the first frequency is higher than a preset frequency threshold value; and setting a current dimming frequency according to the target dimming frequency, and performing screen dimming on the display screen by using a pulse width modulation (PWM) dimming mode according to the current dimming frequency. According to the invention, in the display brightness interval corresponding to PWM dimming, the interval is divided into two brightness ranges according to the preset brightness threshold value, dimming is carried out on the display screen by adopting the dimming frequency higher than the preset frequency in the PWM dimming mode in the relatively low brightness range, and the brightness of the display screen is adjusted on the premise of ensuring the endurance of the electronic equipment. Ultrahigh-frequency PWM dimming under low display brightness is achieved, the problem of low-brightness flicker is effectively solved, and display and eye protection are achieved.

The present application provides a display device, which includes a display panel, a gate driver, and an emission driver. In a first duration corresponding to a writing frame and each holding frame, a ratio of number of periods of a light-emitting control signal to a first duration is greater than a critical flicker frequency. A valid pulse of the first scan signal corresponds to an invalid pulse of the light-emitting control signal, and a valid pulse of the second scan signal is located within a duration of the invalid pulse in the first period of the light-emitting control signal corresponding to the writing frame.

The invention discloses a display visual effect optimization method and system of a display screen, and belongs to the technical field of display methods of electronic displays. The method comprises the steps of dynamic brightness gradient mapping, dynamic refresh rate cooperative adjustment and flicker suppression variable-frequency driving, an ambient light sensor is used for collecting ambient light change frequency and intensity interval data in real time, the dynamic change of ambient light can be accurately captured, a brightness adjustment area is divided, a gain coefficient is dynamically adjusted, the change of the ambient light is matched, and the flicker suppression variable-frequency driving is achieved. Smooth brightness transition, display effect and energy consumption balance, moving object feature recognition, dynamic and static region division, differential refresh rate adjustment, motion blur reduction and power consumption reduction are realized, frequent switching of region division is avoided by setting a region stability threshold and predicting a moving object track, and the accuracy of the moving object is improved. The driving signal parameters are accurately adjusted according to the picture brightness change, so that the signal frequency fluctuates randomly, the flicker rule is broken, real-time monitoring and fine adjustment are realized, and the display quality of the display screen and the user experience are comprehensively improved.

The embodiment of the invention provides an asynchronous control display method and device, equipment and a medium, and the method comprises the steps: enabling a shift clock on an editable logic chip to stop after the editable logic chip is powered on, and setting a target pin as an invalid level; in response to an event of displaying a start ready instruction sent by the processor and received by the editable logic chip, starting a shift clock, and setting the target pin as an effective level; and in response to an event of starting the ready response instruction sent by the editable logic chip received by the processor, sending the to-be-displayed data to the editable logic chip based on the processor, and displaying the to-be-displayed data. According to the technical scheme, after the data is ready, the processor sends the display start ready instruction to the editable logic chip, after the instruction is received, the pin is set to be the effective level, the start ready response instruction is returned to the processor, two-way handshake is completed, false triggering display is avoided, blurred screen and flicker are eliminated, and the system stability and reliability are improved.

Methods and apparatus for dynamic video recording alignment are provided. A video alignment system receives a first signal indicating that an interaction device comprising a screen is in use. Responsive to the first signal, the system instructs the interaction device to record a series of images displayed on the screen. The system detects flicker in a video recording generated by a camera and depicting the screen, where the video recording comprises one or more defective frames contributing to the flicker. Upon detecting the flicker, the system retrieves one or more images, from the series of images, where the one or more images are recorded by the interaction device at moments of corresponding to the flicker. The system superimposes the one or more images onto the one or more defective frames in the video recording.