249 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 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.

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.

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.

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.

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.

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.

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.

The application provides a kind of electronic rearview mirror flicker suppression method and related device, method includes: according to original image data, vehicle state data and environmental data, whether target vehicle is in flicker trigger working condition is judged;If it is judged that target vehicle is in flicker trigger working condition, then according to flicker trigger working condition type, target flicker suppression strategy is determined;According to original image data, target flicker suppression strategy is executed, and target image data is obtained.The frame rate of image acquisition equipment, the frame rate of electronic rearview mirror chip image processing and the refresh rate of image display device are set to the same 50HZ, which is conducive to solving the phenomenon of imaging lagging and incoherence, suppressing power frequency flicker, and by identifying different flicker trigger working conditions and executing different flicker suppression strategies, it is conducive to improving the accuracy of flicker suppression.

One embodiment provides a graphics processor device that includes circuitry configured to detect a connection of a second display device to a display subsystem of the graphics processor while a first display device of the graphics subsystem is active, write pre-determined pixel data to a reserved portion of memory associated with the display subsystem, configure timings for the second display device while resources allocated to the first display device remain available to the first display device, display the pre-determined pixel data from the reserved portion of the memory on the second display device during reallocation of the resources of the display subsystem to enable output the framebuffer data to the second display device, and transition the second display device from the display of the pixel data in the reserved portion of the memory to the display of the framebuffer data after resources of the display subsystem are reallocated.

The application belongs to the technical field of glass products, and more particularly relates to an anti-glare glass. The anti-glare glass comprises a glass substrate (1), the surface of the glass substrate (1) is provided with a glass microstructure surface (2), the glass microstructure surface (2) comprises a plurality of groove portions (3), a groove gap portion (4) is arranged between adjacent groove portions (3), and each groove portion (3) comprises a slot opening (3-1), a slot sidewall (3-2) and a slot bottom surface (3-3). The anti-glare glass has a simple structure and can effectively solve the problems of uneven display screen brightness, flickering phenomenon and poor definition, and forms a product with low flicker point and high definition.

The invention discloses a linear dimming type mixed light illumination system and method based on AI fuzzy control, and belongs to the technical field of LED illumination, the system collects information such as ambient brightness, time, human body activity and the like in real time through an environment sensing module, processes data through an AI-driven fuzzy control algorithm, and outputs target color temperature and brightness level through reasoning. And then, accurate mixed light output is realized through color temperature and brightness coordinate conversion and linear dimming driving. In addition, the system also adopts a chromaticity stability feedback and user preference learning mechanism to continuously optimize the dimming and toning effects. The problems of safety problem, light color drift and lack of intelligent adjustment capability caused by stroboflash of digital dimming in the prior art are solved. By introducing a linear dimming mode and applying an AI fuzzy control algorithm, the system can perform dynamic adjustment according to environmental changes and automatically select the most suitable dimming and toning strategy, thereby ensuring that accurate and stable color temperature and brightness are output in different environments.

The invention discloses an automatic flicker adjusting device for a total reflection liquid crystal display. A bracket is provided with a multidirectional knob and an adsorption base to realize size adaptation of the display; the signal connection system comprises a high-speed serial bus interface board, the input end of the high-speed serial bus interface board is connected with an external control mainboard to receive a control signal, and the output end of the high-speed serial bus interface board is divided into two paths: the first path drives the light source unit of the front light panel module, and the second path transmits a brightness data signal; the detection and control system comprises an optical sensor and a main control unit, the optical sensor collects brightness data of the display, and the main control unit executes frequency domain analysis on a brightness signal to calculate a flicker rate and dynamically adjust a driving voltage parameter of the display; and feeding back an iterative adjustment parameter based on the optical sensor through a closed-loop feedback mechanism until the flicker rate meets a target range, and finally writing an optimization parameter into a nonvolatile memory of a display controller. While the visual display stability and the long-term reliability are improved, the collaborative optimization of the production line calibration efficiency and the system adaptive ability is achieved.

The method and device enable reducing the energy required to render an image by replacing pixels of the image with temporally consecutive pixels of alternating complementary colors that require less energy to display and are selected according to a polarity constraint. This solution exploits the flicker fusion property of the human visual system, which allows selecting complementary colors that can visually have the same perceptual properties as corresponding monochrome colors. The alternating complementary colors are selected to be more economical in terms of the energy consumption required to render the colors. This replacement is performed by either frame doubling, frame skipping, or frame averaging. The concept of consecutive pixels is temporal. In other words, when using frame doubling, one pixel is replaced by two temporally consecutive pixels of alternating complementary colors, with the replacement pixels having half the duration. When using frame skipping or averaging, two temporally consecutive pixels are replaced by two temporally consecutive pixels of alternating complementary colors, with the replacement pixels having the same duration. The polarity constraint enables a reduction in perceived flicker. The association between colors and corresponding alternating complementary colors can be obtained from a lookup table. These principles can be used for videos containing an image or a sequence of images.

This application discloses an anti-glare glass, a glass cover, a display screen, and an electronic device. The anti-glare glass includes a first surface and multiple microstructures. The first surface is the surface of the anti-glare glass along its thickness direction. Multiple microstructures are disposed on the first surface, including concave portions and / or convex portions. The cross-sectional contour lines of the microstructures intercepted by the first plane include morphological curves. The morphological curves satisfy the following conditions: the morphological curves are fitted by an objective function, which includes power functions, and the average exponent of each power function ranges from 1.5 to 3. The first plane is a plane parallel to the thickness direction of the anti-glare glass and passing through the center points of at least two microstructures. The anti-glare glass, glass cover, display screen, and electronic device provided by the embodiments of this application can simultaneously achieve good anti-glare effect, good clarity, and low flicker.

Disclosed is a display device having a thin film transistor substrate, which may prevent afterimage and flicker defects by reducing the non-uniformity of an electric field. In the thin film transistor substrate, a pixel electrode includes a transparent edge electrode and a transparent inner electrode, which are spaced apart from each other with a first slit having a first width interposed therebetween, and a common electrode is exposed from the other-side end of the transparent edge electrode by a second width, which is smaller than the first width, in the width direction of a data line. As such, an inner area and an edge area in each sub pixel have uniform electric field distribution.

The invention discloses a brightness compensation method and device for a liquid crystal display screen. The method comprises the following steps: acquiring a current refresh rate of a liquid crystal display screen; when it is determined that the current refresh rate is lower than the refresh rate threshold value, multiple refresh rates in a preset time window are obtained, and the preset time window is a time window obtained by backtracking a preset duration forwards from the current moment; determining an average refresh rate corresponding to the plurality of refresh rates; determining the insertion opportunity of the compensation frame according to the average refresh rate; and inserting the compensation frame according to the insertion opportunity to perform brightness compensation on the liquid crystal display screen. According to the method and the device, the technical problem that the display effect is affected due to a flicker phenomenon caused by unstable brightness when the LCD screen is at an extremely low refresh rate, especially when the LCD screen is suddenly reduced from a high refresh rate to a low refresh rate in the prior art is solved.

The application provides a display panel and a display device, wherein the time length of the bias adjustment stage and the time length of the non-emitting stage are set to be non-same ratio change, when the display panel is converted from a first mode to a second mode based on the change requirement of brightness, the time length of the non-emitting stage is in a state of being shortened, at this time, the time length of the bias adjustment stage is adjusted in a W1 / L1W2 / L2 mode, so that the change amplitude of the time length of the bias adjustment stage caused by the mode change of the working state is relatively small; that is, the time length of the bias adjustment stage in the second mode is relatively large, and the phenomenon of flicker of the display panel during the mode adjustment in the second mode is avoided. Therefore, the technical scheme provided by the application improves the flicker problem of the display panel under different brightness modes, and ensures that the display device has good display effect.