20results about How to "Solve flickering" patented technology

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 is used for improving the display uniformity of the display panel. The display panel comprises a plurality of sub-pixels; the sub-pixel receives a first light-emitting control signal; the display panel at least comprises first time and second time, and the first time is different from the second time; wherein the first time and the second time are light emitting time of different sub-pixels respectively; or the first time and the second time are starting time of the first light-emitting control signals of the different sub-pixels respectively; or the first time and the second time are the light emitting time of the same sub-pixel in different states; or, the first time and the second time are the starting time of the first light-emitting control signal of the same sub-pixel in different states.

This application provides a display panel and a display device. The display panel includes: light-emitting elements, including a first light-emitting element and a second light-emitting element; pixel circuits, including a first pixel circuit and a second pixel circuit, the first pixel circuit being connected to the first light-emitting element and the second pixel circuit being connected to the second light-emitting element; the pixel circuits receive bias adjustment signals, including a first bias adjustment signal and a second bias adjustment signal, the first pixel circuit receiving the first bias adjustment signal and the second pixel circuit receiving the second bias adjustment signal; the area of ​​the first light-emitting element is S1, and the area of ​​the second light-emitting element is S2; the voltage value of the first bias adjustment signal is V1, and the voltage value of the second bias adjustment signal is V2; wherein, (S1-S2)×(|V1|-|V2|)≠0. The technical solution of this application can utilize different bias adjustment signals for bias adjustment, thereby improving display quality.

The invention discloses a display device and a driving method, the display device comprises a display panel, a backlight module and a driving module, the driving module comprises a time sequence controller, a gamma chip and a microprogram controller, the display panel is provided with a light sensing module which is used for detecting the brightness of ambient light and is connected with the input end of the microprogram controller, and the light sensing module is connected with the input end of the microprogram controller. The microprogram controller generates a backlight brightness control signal according to the brightness of ambient light detected by the light sensing module and outputs the backlight brightness control signal to the backlight driving chip so as to control the brightness of the backlight source, and the time schedule controller obtains a gamma voltage compensation value according to the backlight brightness control signal generated by the microprogram controller and inputs the gamma voltage compensation value to the gamma chip so as to control the brightness of the display panel. The linkage function is achieved through two kinds of compensation of the brightness of the display panel and the backlight brightness, the problem of flickering in an anti-tearing mode during high brushing in different environments is effectively solved, and meanwhile the adaptive environment and the picture grade of the high-brushing electronic sports screen are improved.

The present application discloses a pixel driving circuit, a display panel and a driving method of the display panel. The pixel driving circuit includes a driving transistor, a light emitting device, a first light emitting control module, a data writing module, an adjustment module and a second light emitting control module. The pixel driving circuit, the display panel and the driving method of the display panel provided by the present application, by setting an adjustment module at the first node, the adjustment module adjusts the potential of the second node based on the potential of the first node, thereby reducing the potential difference between the first node and the second node, ensuring that the conduction angle of the driving transistor changes little, and then the light emitting device emits light stably, which can effectively solve the flicker problem and improve the display effect.

The invention discloses an image enhancement method and system for an intelligent network connection automobile test scene, and the method comprises the following steps: S1, obtaining original image data in the intelligent network connection automobile test scene, and carrying out the preprocessing of the original image data; s2, constructing a scene feature recognition model, performing scene dynamic feature extraction on the preprocessed image data, and determining environment category parameters of a current test scene; and S3, based on the environment category parameters, calling a corresponding scene adaptive enhancement strategy library. The invention relates to the technical field of intelligent network connection automobile testing. According to the image enhancement method and system for the intelligent networked automobile test scene, a multi-index image quality evaluation system is established, the system comprises the peak signal-to-noise ratio (PSNR), the structural similarity (SSIM) and the information entropy, quantitative evaluation is carried out after enhancement each time, enhancement parameters are automatically adjusted by taking the evaluation result as a feedback signal, a closed-loop iterative optimization process is formed, and the image enhancement efficiency is improved. And the output image is ensured to meet the quality threshold requirement.

The invention discloses a display panel and a driving method thereof, a driving chip and a display device, the display panel comprises a sub-pixel, the sub-pixel comprises a pixel circuit and a light-emitting element, the pixel circuit accesses a light-emitting control signal and a first scanning signal, the light-emitting control signal is used for controlling whether the sub-pixel emits light or not, and the first scanning signal is used for scanning the sub-pixel. The first scanning signal is used for controlling whether the data signal is written into the pixel circuit; the working modes of the display panel comprise a first mode, a second mode and a transition mode, the transition mode is located between the first mode and the second mode, and the first mode is before the transition mode; in the transition mode, the light-emitting control signal comprises an integer number of pulses, the first scanning signal is a cut-off level, and the pulses of the light-emitting control signal comprise a conduction level and the cut-off level. According to the display panel and the driving method thereof, the driving chip and the display device provided by the invention, the flicker problem caused by switching of different modes can be avoided.

The present application discloses a control method and a display device for a display, wherein the control method for the display obtains the ambient temperature of the display and determines whether the ambient temperature changes from a first temperature value to a second temperature value; when the ambient temperature changes from the first temperature value to the second temperature value, the display is controlled to insert a frame of a completely black picture; a target compensation voltage corresponding to the second temperature value is obtained, and the display is controlled according to the target compensation voltage; the present application can alleviate the current problem of flickering of the display screen.

The utility model provides a dimming circuit which comprises an external power supply, a power supply module, a control module and a dimming module. The power supply module comprises a voltage regulating assembly and a voltage stabilizing assembly, the voltage regulating assembly is connected to an external power supply and reduces the voltage of the external power supply and transmits the voltage to the voltage stabilizing assembly, and the voltage stabilizing assembly outputs power supply voltage. The voltage regulating assembly supplies power to the operational amplifier assembly, and the output end of the voltage stabilizing assembly is connected with the control module and used for supplying power to the control module. The dimming module comprises an operational amplifier assembly and a switch piece, the control module is connected with the in-phase input end of the operational amplifier assembly, and reference voltage is connected to the inverted input end of the operational amplifier assembly. The output end of the operational amplifier assembly is connected with the switch piece, and the switch piece is used for being switched on or switched off according to an output signal of the operational amplifier assembly. The switch piece is connected with the cathode end of the lamp strip, and the anode end of the lamp strip is connected with an external power supply. The problem that the lamp strip flickers when equipment is powered off or OTA is upgraded is solved by driving the switch of the lamp strip through in-phase dimming.

The invention provides a brightness adjusting method and device for a light-emitting unit, equipment, a medium and a product, and the method comprises the steps: obtaining a set current and an initial duty ratio of a target period, calculating a target current according to the set current and the initial duty ratio, determining the target brightness corresponding to the light-emitting unit according to the target current, and carrying out the adjustment of the brightness of the light-emitting unit in a first time period of the target period. In the target period, the driving current of the light-emitting unit is determined as the first current, the first brightness of the light-emitting unit in the first time period is determined, in the second time period of the target period, the driving current of the light-emitting unit is determined as the second current, and the second brightness of the light-emitting unit in the second time period is determined, so that the extinguishing time of the light-emitting unit is avoided, and the flicker problem is solved. And the average brightness of the first brightness of the light-emitting unit in the first time period and the second brightness of the light-emitting unit in the second time period is equal to the target brightness, so that normal display of a picture is ensured.

The invention discloses an image exposure method and device based on a depth camera and electronic equipment. The method comprises the following steps: acquiring a first image acquired by the depth camera; determining a first exposure index of the first image according to the depth value of each pixel point in the first image; second exposure time of a second image collected by the depth camera is determined according to the first exposure index, the second image is the Nth frame image after the first image, and N is a positive integer.

The invention provides a display panel, a preparation method and a display device.The display panel comprises a substrate and at least one pixel circuit formed on the substrate, and each pixel circuit comprises a driving circuit, a light-emitting control circuit and a write-in and storage circuit, the orthographic projection of the first end of the write-in and storage circuit on the substrate is not overlapped with the orthographic projection of the control end of the drive circuit on the substrate. The write-in and storage circuit comprises the capacitor, and the first end of the write-in and storage circuit can also be understood that one end of the capacitor and the control end of the driving circuit are not overlapped on the substrate, so that stray capacitance is not easy to generate between the write-in and storage circuit and the driving circuit, and the grid voltage of the driving circuit is not easy to influence; the stable output of the driving circuit is ensured, so that the problem of flicker under a low-brightness and low-gray-scale picture is solved.

The invention provides a method and a product for real-time video style conversion based on a stable diffusion network, the stable diffusion network comprises a text encoder, an image information creator assembly and an image decoder, the image information creator assembly comprises a Unet network and a scheduler, the image information creator component further comprises at least one first edge convolution module, a VGG network, an information fusion network and a fine tuning network, the information fusion network comprises a weight recombination fitting layer, the fine tuning network comprises at least one second edge convolution module, and the method comprises the following steps: receiving a first style video; processing the key frame and the non-key frame of the first-style video through a stable diffusion network to obtain a second-style video; performing fine tuning processing on the second-style video through a fine tuning network according to the first-style video to obtain the second-style video of which the continuity between adjacent frames meets a preset continuity condition; according to the technical scheme, the video conversion speed and quality can be improved.

This invention discloses a variable refresh rate anti-flicker display method, apparatus, device, and storage medium, applied in the field of display control. It determines the maximum refresh rate in the current display mode, and determines the minimum refresh period based on the maximum refresh rate; it determines the minimum logical refresh rate based on the maximum refresh rate and the variable refresh rate range, and determines the maximum refresh period based on the minimum logical refresh rate; it determines the optimal display frame loading time zone based on the minimum refresh period and the maximum refresh period; during the current refresh period, when a new display frame is received in the display frame queue buffer within the optimal loading time zone, the new display frame is flipped; when no new display frame is received in the display frame queue buffer at the end of the maximum refresh period, the old display frame is flipped. This invention proposes a variable refresh rate anti-flicker display method based on page flipping control of the scan output frame buffer, thereby avoiding the flickering problem caused by the variable refresh rate operating in the lowest refresh rate range.

The invention discloses a subway vehicle LED lighting system and a control method thereof, and relates to the technical field of lighting control. The system comprises an input module, a direct current-direct current conversion module and an output control module, the input module is connected with the direct current-direct current conversion module, and the direct current-direct current conversion module is further connected with the output control module; the input module is used for accessing an alternating current signal and a direct current signal, the output control module is used for driving and output control of the direct current-direct current conversion module, and the direct current-direct current conversion module is used for performing voltage conversion processing on the input signal according to a control signal of the output control module and outputting a voltage value required by the LED illuminating lamp. And the LED illumination control of the subway vehicle is realized. According to the invention, a 220V alternating current signal and a 110V direct current signal can be compatible, and the lighting control convenience and the lighting effect are improved.

The present invention discloses a pixel driving circuit and a driving method thereof. The pixel driving circuit comprises: a driving module, a data writing module, an adjusting module and a light emitting module; the data writing module is used to write the received data voltage signal into the first end of the driving module; the adjusting module is electrically connected to the first end of the driving module, and the adjusting module is used to adjust and reset the potential of the first end of the driving module during the data holding stage; the second end of the driving module is connected to the light emitting module, and the driving module is used to generate a driving current according to the data voltage signal, and the light emitting module is used to respond to the driving current and emit light. The technical solution of the embodiment of the present invention improves the flickering problem of the display panel when displaying high, medium and low grayscales, and achieves a stable display effect.

The application provides an image processing method and device, a computer readable storage medium and a terminal device, the image processing method comprising: obtaining an image to be processed; calculating a statistical value of low-frequency information of the image to be processed in a luminance domain; determining a corresponding mapping curve according to a scene to which the statistical value belongs, the mapping curve representing a mapping relationship between an original luminance value and an adjusted luminance value of each pixel in the luminance domain, different scenes corresponding to different mapping curves; determining an adjusted luminance value of each pixel in the image to be processed according to the mapping curve; and mapping a gain of the adjusted luminance value of each pixel to each color channel of the corresponding pixel to obtain an adjusted image. The application provides an image processing scheme capable of improving the luminance of a low-light area of an image and avoiding overexposure of a highlight area.

The application discloses a kind of intelligent direct current lighting brightness self-adapting control system and method, belong to lighting control technical field.Aiming at the problem that existing reactive power compensation and brightness control are independent, lack of cooperation leads to unstable brightness when power fluctuates, the application calculates real-time power factor and extracts reactive component by collecting bus voltage and current;The optimal capacitor combination scheme is determined by the reactive power compensation amount calculation unit, and the power compensation capacitor dynamic switching array quickly executes switching;At the same time, the power factor value is used as the feedforward input by the cooperative control strategy engine, and the brightness adjustment pre-compensation amount is calculated by the pre-built coupling adjustment model;The brightness stability control loop superimposes the deviation feedback correction amount with the feedforward compensation amount, and the final control signal is output to the drive power supply.The application realizes the cooperative regulation of reactive power compensation and brightness control, effectively suppresses the brightness flicker caused by bus voltage fluctuation, and improves the lighting stability.

The present disclosure relates to a driving device and an electronic device, the device comprising a first voltage generating module, a voltage adjusting module, a first switch module, a first capacitor module, a first transistor module and a first light-emitting module, wherein: the first voltage generating module is used to generate a first voltage; the first switch module is used to output the first voltage to the first end of the first capacitor module in a first time period; the voltage adjusting module is used to determine a second voltage according to a change in the voltage at the first end of the first capacitor module, and output the second voltage to the second end of the first capacitor module in a second time period; the first transistor module is used to drive the first light-emitting module to emit light using the voltage at the first end of the first capacitor module. Through the above device, the embodiment of the present disclosure can compensate and adjust the leakage in the device to solve the flickering problem of the first light-emitting module.

Embodiments of the present application provide a display panel and a driving method thereof, and a display device, and relate to the technical field of display, and are used for improving display uniformity of the display panel. The display panel comprises a plurality of sub-pixels; the sub-pixels receive a first light-emitting control signal; the display panel comprises at least a first time and a second time, and the first time is different from the second time; wherein, the first time and the second time are respectively light-emitting times of different sub-pixels; or, the first time and the second time are respectively turn-on times of the first light-emitting control signal of different sub-pixels; or, the first time and the second time are respectively light-emitting times of a same sub-pixel in different states; or, the first time and the second time are respectively turn-on times of the first light-emitting control signal of a same sub-pixel in different states.