342 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.

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 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 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 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 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.

The embodiment of the invention provides a dynamic scene streaming reconstruction method and device, equipment and a storage medium, and relates to the technical field of computer vision. Constructing a three-dimensional Gaussian model by using the initial video frame of each view angle, and dividing Gaussian primitives into an activity set and a frozen set based on historical video frames in the optimization process of the current video frame; determining a sudden motion mask based on the current motion mask of the current video frame, obtaining a reference rendering image corresponding to the current video frame based on the three-dimensional Gaussian model corresponding to the previous moment, and calculating a motion loss value based on the current video frame, the reference rendering image and the sudden motion mask, if the motion loss value indicates that part of Gaussian primitives in the frozen set are active primitives, dividing the active primitives into an active set; and performing an optimization process at the current moment at least based on the updated activity set. The Gaussian primitives corresponding to the dynamic region and the static region are accurately separated, the inter-frame flicker phenomenon is effectively inhibited, and the stability and the reconstruction quality of streaming reconstruction are improved.

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.

This application provides a display device and a backlight module driving method. When the display device is in Variable Refresh Rate (VRR) mode, the dimming mode of the backlight module can be adjusted to analog dimming mode. In analog dimming mode, the backlight brightness of the backlight module can be adjusted by adjusting the power supply voltage / current of the backlight module to ensure the normal operation of the display module. Since the analog dimming mode does not have a refresh rate, there is no phase difference. Therefore, without increasing hardware costs, screen flicker or water ripple phenomena can be avoided, thereby ensuring the display quality of the screen and improving the user's viewing experience. In addition, it can also help improve the photoelectric conversion efficiency of the components in the display device.

The invention discloses a backlight control method and device and electronic equipment, and the method comprises the steps: determining the brightness distribution of a current image frame, and determining the motion speed grade of a target object in the current image frame; comparing the motion speed grade of the target object with a preset speed grade, comparing the brightness difference value with a preset brightness difference value, and determining an output mode of the target backlight value; for the backlight partition, calculating a target brightness difference value, and determining a backlight value change duration based on the target brightness difference value, a maximum brightness threshold value, a minimum brightness threshold value and a preset weighting algorithm; and adjusting the current backlight value of the backlight partition to the target backlight value within the backlight value change duration based on the output mode. Namely, the output mode of the target backlight value is determined according to the comparison result, the problem of backlight delay is avoided, and the problem of backlight flicker is weakened by calculating the change duration of the backlight value and controlling the current backlight value to be adjusted to the change duration of the target backlight value.

This application discloses a method, apparatus, device, and storage medium for digitizing flicker pulses. The digitization method includes: presetting at least two thresholds; synchronously and in parallel comparing a flicker pulse to be processed with the at least two thresholds to determine at least two state change signals corresponding to the at least two thresholds when the flicker pulse to be processed crosses a threshold; performing delay processing on at least one of the state change signals to obtain at least two corresponding delayed state change signals; and using the same sampling module to sequentially sample the delayed state change signals to obtain the corresponding flicker pulse threshold-time pairs. This application can achieve the reuse of the sampling module while ensuring sampling accuracy, greatly saving logic resources.

Described herein are methods and systems for adjusting a camera system to account for high-lux flicker condition while maintaining camera high sensitivity capability. Automatic switching is performed from quad-Bayer binning (QBB) mode which provides for high sensitivity capability and sub-sampling mode that addresses high-lux condition. An engine, such as an auto exposure engine, performs the switching determining scene data captured by an image sensor and adjusting exposure time and gain, and instructing the image sensor to operate at QBB mode or sub-sampling mode.

The invention provides a refresh rate control method and device, a display panel and a display device. The method comprises the following steps: acquiring target display data in a current time window; judging whether multi-refresh-rate mixed display exists in the target display data or not; if multi-refresh-rate mixed display exists in the target display data, low-frequency data corresponding to a low-frequency refresh rate is determined in the target display data, and the low-frequency refresh rate is the refresh rate with the lower frequency in the refresh rates of mixed display; and performing frequency multiplication processing on the low-frequency data. When the multi-refresh-rate mixed display is detected, the low-frequency data is subjected to frequency doubling processing, so that the refresh rate of the low-frequency data is improved, the charging time difference between the low-frequency data and the high-frequency data is reduced, the brightness difference between the low-frequency data and the high-frequency data is reduced, meanwhile, the frequency doubling processing can be quickly realized, other channels do not need to be occupied, and the processing efficiency is improved. The flicker phenomenon caused by frequency hopping is quickly and effectively solved.

A device for image processing includes one or more memories configured to store image data; and processing circuitry coupled to the one or more memories, wherein the processing circuitry is configured to: determine initial camera parameters including an initial exposure time for capturing images; perturb the initial exposure time to determine at least one of a first exposure time and a second exposure time; cause an image sensor to capture a first image of the image data at the first exposure time; cause the image sensor to capture a second image of the image data at the second exposure time; determine a characteristic of flicker based on at least the first image and the second image; and generate an output based on the determined characteristic of flicker.

This invention discloses an image processing method and electronic device for mitigating LED flicker based on motion compensation, applicable to flicker suppression caused by pulsed LED light sources in vehicle cameras, intelligent transportation systems, and consumer electronic devices. When the alternating on / off states of LEDs cause block matching failures in traditional methods, this invention accurately predicts motion vectors through weighted fusion of spatial / temporal proximity vectors; it also solves the problem of cross-frame coordinate mapping misalignment by generating a reverse motion vector map, ensuring the accuracy of forward / backward pixel tracing; finally, through cross-frame weighted fusion, combining mean and maximum value weights, flicker is eliminated while avoiding the loss of LED brightness information. This invention solves the problem that existing technologies require special CMOS sensor hardware to handle LED flicker.

The invention discloses anti-glare glass and a preparation method thereof, the anti-glare glass comprises a glass substrate, the surface of the glass substrate is provided with a microstructure layer, and the microstructure layer comprises more than two different functional areas; the functional area at least comprises a first functional area corresponding to sub-pixels used for emitting light in the display panel and a second functional area corresponding to a nigra matrix used for separating and shading. Through differential microstructure processing of a light-emitting area and a non-light-emitting area, the inherent contradiction between glare resistance and display definition is effectively solved, glare can be effectively inhibited, and meanwhile an extremely low flash point can be kept; besides, the special microstructure processing of the nigra matrix area can effectively absorb the ambient light and make the black background deeper, thereby significantly improving the contrast of the display device in a bright environment.

Disclosed are an electronic device and a method, wherein the electronic device may obtain a first image captured at intervals of a first period by using a first camera, obtain a second image captured at intervals of a second period by using a second camera, select the first image based on a light intensity value of the first image being less than or equal to a first threshold and greater than or equal to a second threshold, select the second image captured before the first image is captured, based on the light intensity value being greater than the first threshold or less than the second threshold, and generate a video, based on the selected first image or second image.

The invention provides an electronic rearview mirror flicker suppression method and a related device, and the method comprises the steps: judging whether a target vehicle is in a flicker triggering working condition or not according to original image data, vehicle state data and environment data; if it is judged that the target vehicle is in the flicker triggering working condition, a target flicker suppression strategy is determined according to the type of the flicker triggering working condition; and executing a target flicker suppression strategy according to the original image data to obtain target image data. The image acquisition frame rate of the image acquisition equipment, the image processing frame rate of the electronic rearview mirror chip and the refresh rate of the image display equipment are set to be the same 50HZ, so that the phenomenon of imaging lagging and incoherence can be solved, power frequency flicker can be inhibited, different flicker trigger working conditions can be identified, and different flicker inhibition strategies can be executed in a targeted manner, so that the image display efficiency can be improved. And the accuracy of flicker suppression is improved.

This application discloses a brightness compensation method, a compensation parameter generation method, and related apparatus for a display panel. The method includes: responding to a frequency switching command, determining corresponding compensation parameters based on the current brightness level, a first refresh frequency, and a second refresh frequency; the first refresh frequency is the refresh frequency before the switch, and the second refresh frequency is the refresh frequency after the switch; adjusting the light-emitting time ratio at the second refresh frequency according to the compensation parameters. According to embodiments of this application, by adjusting the light-emitting time ratio at the refresh frequency after the switch during the refresh frequency switching process, the display brightness after the switch can be made closer to the display brightness before the switch, reducing the difference in display brightness before and after the refresh frequency switch and improving the flicker problem during the refresh frequency switching process.

Provided are an optical measurement device, an optical measurement method, a data processing device, and a program, capable of generating data that is a stimulus value that takes into account the time response of an eye and suppresses waveform distortion, capable of performing good flicker measurement, and also capable of coping with a measurement target object having a non-periodic light emission waveform. A stimulus value acquisition unit (20) receives light from a measurement target object to continuously acquire intensities corresponding to stimulus values at constant time intervals; a response characteristic acquisition unit (32) acquires a pulse response characteristic from a storage unit (31) that stores a pulse response characteristic corresponding to a visual stimulus response; and a digital filter processing unit (32) performs digital filter processing on continuous data of the acquired stimulus value intensities using the acquired pulse response characteristic to generate data on which a visual stimulus response is superimposed.

An event-based vision sensor (EVS) is provided. The EVS includes an EVS panel that includes a pixel array, a window counter unit, an on / off counter unit, and an Identification of Condition (IoC) unit. The window counter unit partitions the pixel array into a plurality of windows. The on / off counter unit counts on-events and off-events occurring for each window in the plurality of windows. The IoC unit determines whether to mask each of the corresponding windows in accordance with the count.

The invention relates to a display device and a device control method, and relates to the technical field of image processing. The controller is connected with the display and is configured to obtain a to-be-displayed image and divide the to-be-displayed image according to a preset division rule to obtain a plurality of image areas; analyzing each image region based on a preset inter-frame difference algorithm, and determining an initial refresh rate of each image region; performing refresh rate updating processing based on the initial refresh rate of each image region and a preset merging rule to obtain a target refresh rate of each image region; and controlling each image area to perform jitter processing according to the corresponding target refresh rate and the pixel value, obtaining the display brightness of each image area, and sending the display brightness to a display, so that the display displays the to-be-displayed image according to the display brightness of each image area. Picture jitter synchronization is guaranteed during display image jitter processing, the problems of flicker, smear and the like of image display are avoided, and the image display effect is guaranteed.

Embodiments of the present application provide a display panel, a driving method thereof and a display device, and relate to the technical field of display, and are used for improving flicker problem in low frequency mode. The display panel comprises a pixel driving circuit, the pixel driving circuit comprises a driving transistor and a first light emitting control module; the working mode of the display panel comprises a first mode, in the first mode, the working period of the pixel driving circuit comprises a data writing stage and at least one data maintaining stage after the data writing stage; the data writing stage comprises at least one first light emitting period, and the data maintaining stage comprises at least one second light emitting period; the display panel further comprises a control module, and the control module is used for making the time length of the first first light emitting period in the data writing stage less than the time length of the at least one second light emitting period.

The invention provides a display method, a display device and electronic equipment, the display device comprises a plurality of sub-pixels, and the display method comprises the following steps: in a first brightness scene, closing at least part of sub-pixels in the plurality of sub-pixels; and increasing the current of the remaining sub-pixels in the plurality of sub-pixels. According to the display method, the display device and the electronic equipment provided by the embodiment of the invention, the screen flash problem in a low-light scene can be relieved, and the screen power consumption is reduced.

This application discloses a display panel and its driving method and display device. The display panel includes: multiple sub-pixel columns and multiple data lines. The multiple sub-pixel columns include a first sub-pixel column and a second sub-pixel column. The multiple data lines include a first data line and a second data line. The first sub-pixel column is connected to the first data line, and the second sub-pixel column is connected to the second data line. The working stages of the display panel include a display frame and a display blank segment, with the display blank segment located after the display frame. When the data voltages of the first sub-pixel column and the second sub-pixel column are different in the display frame, in the display blank segment, the voltage on the first data line is V1, and the voltage on the second data line is V2, where V1 ≠ V2. According to the embodiments of this application, it is beneficial to improve the screen flicker problem of the display panel.

The invention discloses a display device, and belongs to the technical field of display, the display device comprises a display panel, a pixel array in the display panel comprises a plurality of pixel groups, and each pixel group comprises at least one pixel row; in a display frame period, different pixel groups receive different compensation bias voltages; the compensation bias voltage is used for compensating the bias voltage of the pixels in the pixel group; the compensation bias voltage is determined based on flicker characteristic data of the display panel; the flicker characteristic data of the display panel at least comprises the optimal bias voltage value corresponding to each pixel group. According to the display device, different and customized bias voltage compensation can be carried out on different areas in the display panel according to actual physical characteristic differences of the different areas of the display panel, so that the hysteresis characteristics of driving transistors in all the areas of the display panel under the low refresh rate can be well adjusted, and the display effect is improved. And the non-uniform flicker of the display panel caused by the regional characteristic difference under the low refresh rate is effectively eliminated.

An image capture apparatus includes an image sensor that captures a subject image formed via a lens and outputs an image; and at least one processor or circuit configured to function as: a detection unit configured to detect flicker from the image output from the image sensor; and a control unit configured, in a case where, in an image capture time period in which images of a subject are being captured for flicker detection by the image sensor, the lens is driven in accordance with a drive operation that causes a change in an amount of light received by the image sensor, to adjust drive of the lens in the image capture time period.