36results about How to "Improve flickering" patented technology

The invention relates to a display panel, a driving method thereof and a display device. The method comprises the following steps: acquiring a refreshing mode of a display panel at the current moment, resetting a driving transistor of the display panel by adopting a first reset voltage under the condition that the refreshing mode at the current moment is non-partitioned frequency division, and resetting the driving transistor of the display panel by adopting a second reset voltage under the condition that the refreshing mode at the current moment is partitioned frequency division. The second reset voltage is adopted to reset the driving transistor of the display panel, and the second reset voltage is different from the first reset voltage, so that the different reset voltages are adopted to reset the driving transistor of the display panel in different refresh modes of the display panel, namely, non-partitioned frequency division or partitioned frequency division; therefore, flicker caused by threshold voltage offset of the driving transistor when different refresh modes are switched is improved, and the display effect is improved.

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 provides a display device and a driving method thereof, the display device comprises a display panel, a graphics processor and a time sequence control chip, a front buffer area and a rear buffer area in a storage space of the graphics processor are respectively used for storing image information of an nth frame and image information of an (n + 1) th frame, n is a positive integer, and n is a positive integer; the time sequence control chip is used for acquiring a time threshold value when the image information of the (n + 1) th frame of the rear buffer area reaches a ready state, selecting compensation information of the (n + 1) th frame according to the time threshold value, and pre-loading the compensation information of the (n + 1) th frame in a frame blanking period of the nth frame, and the image information of each frame is compensated by adopting the corresponding compensation information in time, so that the picture flicker phenomenon is effectively improved.

The display device and the control method thereof provided by the invention are used for improving picture flicker when the refresh frequency of the display device changes. The control method comprises the following steps: detecting the current refresh frequency of the display device in real time; and if the current refresh frequency is lower than the previous refresh frequency, and the current refresh frequency is lower than a first threshold value, and the previous refresh frequency is not lower than the first threshold value, driving the backlight module with a second backlight current, the second backlight current being greater than the first backlight current, and the second backlight current being greater than the first backlight current. Therefore, the display brightness at the current refresh frequency is equivalent to the display brightness at the last refresh frequency. Wherein the backlight module is driven by the first backlight current during the last refresh frequency driving period. Therefore, under the condition that the refresh frequency changes in real time, the display brightness can be kept almost consistent, and then picture flicker is improved.

The invention provides a display device and a driving method thereof. The display device comprises a display panel, the display panel comprises N partitions divided in the scanning direction, each partition comprises M rows of pixel units, each pixel unit comprises a pixel circuit and a light-emitting device, and N and M are positive integers; the driving circuit is electrically connected with the pixel units, and the driving circuit is used for generating oblique wave signals, inputting the oblique wave signals to the pixel units and sequentially controlling the pixel units of each of the N partitions to carry out data writing and light emitting in the driving period of one frame of picture; wherein the ramp signal comprises a plurality of pulse periods in the driving period of one frame of picture, the driving period of the pixel unit of each partition comprises a data writing stage and a light emitting stage, the data writing stage is prior to the light emitting stage, and the light emitting stage comprises the plurality of pulse periods of the ramp signal. According to the display device and the driving method thereof provided by the invention, the flicker problem of the display panel when the display panel displays a low-gray-scale picture can be improved.

The invention provides a display panel and a driving method thereof, the display panel is used for displaying a picture in multiple frames, the multiple frames comprise multiple first frames and multiple second frames, and the multiple frames comprise multiple first sub-pixel groups and multiple second sub-pixel groups which are arranged in a staggered manner, the plurality of first gate signals are used for driving the plurality of corresponding first sub-pixel groups to be opened in the first frame, the plurality of second gate signals are used for driving the plurality of corresponding second sub-pixel groups to be opened in the second frame, the first frame and the second frame have an overlapping time period, and the flicker phenomenon under low frequency is improved.

The invention discloses a brightness adjustment method, a display device and a computer readable storage medium, and the method comprises the steps: controlling a display panel to enter a local highlight mode after receiving a target instruction for indicating the display panel to enter the local highlight mode; after a display panel enters a local highlight mode, if a target brightness value of a second area in a display picture is smaller than a preset inflection point brightness value, the brightness value of the second area in the display panel is adjusted to the inflection point brightness value by using a brightness level; adjusting the brightness of a second area in the first picture by using the first calibration value, and adjusting the brightness of the second area in the second picture to a target brightness value by using the second calibration value; wherein the first picture and the second picture are display pictures after the display panel enters the local highlight mode, and the first picture is located in front of the second picture. According to the scheme, the problem that after the display panel enters the local highlight mode, the display brightness is unstable can be solved.

Disclosed is a display device including: a display panel including a display area provided with pixels and a non-display area provided around the display area; and at least one gate driver configured to apply a scan signal and a light emission signal to the pixels. The compensation capacitor is short-circuited during the light emission period, but is applied with a DC voltage during at least one other driving period.

The array substrate comprises a substrate, M scanning lines, N data lines, M * N pixel units and a plurality of shielding units. The M scanning lines and the N data lines are arranged on the substrate and are arranged in a staggered mode to define M * N pixel units. Each pixel unit comprises a switch element with an active layer, and the vertical projection of the active layer of each pixel unit on the substrate completely falls into the vertical projection of one shielding unit on the substrate. The first to sixth pixel units arranged in sequence in the same column are respectively provided with first to sixth shielding units. The first shielding unit is electrically connected with the fourth shielding unit, the second shielding unit is electrically connected with the fifth shielding unit, and the third shielding unit is electrically connected with the sixth shielding unit.

A display device according to an embodiment of the present disclosure may comprise: a display panel including a plurality of pixels, a backlight unit configured to provide a light to the display panel and a processor is configured to, when a refresh rate of the image signal is changed, obtain a brightness compensation value suitable for the changed refresh rate, and apply a RGB data value suitable for the obtained brightness compensation value to each pixel, wherein if the brightness compensation value of the image signal is not changed, in a state in which a luminance control value of the backlight unit is fixed, a first luminance change range measured according to the change of the refresh rate is larger than a second luminance change range, if the brightness compensation value of the image signal is changed in a state in which the luminance control value of the backlight unit is fixed, the second luminance change range is measured according to the change of the refresh rate.

The invention relates to a pixel circuit, a driving method, a display panel and electronic equipment. The pixel circuit comprises a light-emitting element; the first transistor is provided with a back gate structure, the first transistor is coupled with the light-emitting element, and the first transistor is used for driving the light-emitting element to emit light; the second transistor is provided with a back gate structure, the first end of the second transistor is used for being coupled with a first signal line, the second end of the second transistor is coupled with the gate of the first transistor to form a first node, and the second transistor is used for initializing the gate of the first transistor; the third transistor is provided with a back gate structure, the first end of the third transistor is coupled with the first node, and the second end of the third transistor is coupled between the first transistor and the light-emitting element; wherein back gates formed by the back gate structures of the first transistor, the second transistor and the third transistor are all used for being coupled with a second signal line, and a second signal of the second signal line is used for resetting the first transistor, the second transistor and the third transistor.

The invention provides a display method, electronic equipment for realizing the display method and a computer readable storage medium. In the method, after it is detected that an SOC sends image data of a first picture to a display screen, the electronic device starts to execute first frame reduction based on a first frame reduction sequence. The first frame reduction comprises n times of screen refresh, and the equivalent refresh rate of the ith screen refresh is equal to the ith refresh rate in the frame reduction sequence. N screen refresh rates in the first reduced frame sequence are arranged in a descending order, the first screen refresh rate can be determined according to a time interval between a first refresh frame and a previous refresh frame, and the first refresh frame is the time when the display screen refreshes the first picture for the first time; the last refresh frame is the last screen refresh time before the first refresh frame. In this way, the power consumption of the display screen can be reduced through the self-adaptive frame reduction process of the frame reduction starting point, and meanwhile the problems of screen flicker and the like can be solved.

The present invention discloses a driving method for a pixel circuit, a display panel and a display device. The driving method comprises: providing a light-emitting control signal to the pixel circuit, wherein in each display frame, the light-emitting control signal comprises at least two pulses with different duty cycles; in at least two display frames, the arrangement order of the pulses in the light-emitting control signal is different. The embodiment of the present invention can improve the flickering problem of the display panel in the full brightness display range under the low refresh frequency state.

This application discloses a brightness adjustment method, a display device, and a computer-readable storage medium. The brightness adjustment method includes controlling the display panel to enter a partial brightness mode after receiving a target instruction instructing the display panel to enter a partial brightness mode; after the display panel enters the partial brightness mode, if the target brightness value of a second area in the displayed image is less than a preset inflection point brightness value, the brightness value of the second area in the display panel is first adjusted to the inflection point brightness value using a brightness level; then, the brightness of the second area in a first image is adjusted using a first calibration value, and the brightness of the second area in a second image is adjusted to the target brightness value using a second calibration value; wherein the first image and the second image are both displayed images after the display panel enters the partial brightness mode, and the first image is positioned before the second image. This solution can improve the problem of unstable display brightness after the display panel enters the partial brightness mode.

The invention provides a display panel, a driving method thereof and a display device, and relates to the technical field of display, and the display panel comprises a first type of gate lines and a second type of gate lines; a first gate drive circuit and a second gate drive circuit; the first type of gate lines and the second type of gate lines are coupled with a first shift register in the first gate drive circuit, and the second type of gate lines are coupled with a second shift register in the second gate drive circuit; the first gate drive circuit is used for providing gating signals for the first type of gate lines and the second type of gate lines in a first scanning period, and the second gate drive circuit is used for providing gating signals for the second type of gate lines in a second scanning period. In the first scanning period, the second type of pixels are pre-charged, and when the second type of pixels are charged, the second type of pixels can respond quickly, so that the duty ratio of the backlight opening duration is improved, the smear and flicker phenomena of the display panel are improved, and the display effect of the display panel is improved.

The embodiment of the invention provides a display panel, a driving method thereof and a display device, the display panel comprises a first driving mode, a display frame of the first driving mode comprises a write-in frame, a first holding frame and a second holding frame, the first holding frame and the second holding frame are carried out after the write-in frame, and the first holding frame is located between the write-in frame and the second holding frame; the display panel comprises a plurality of sub-pixels, each sub-pixel comprises a pixel circuit and a light-emitting device which are electrically connected with each other, the pixel circuit comprises a driving transistor and a first transistor, the first transistor is electrically connected with the driving transistor, and the first transistor is used for transmitting a first adjusting voltage to the driving transistor in a first holding frame. The second voltage regulator is used for transmitting a second regulation voltage to the driving transistor in a second holding frame; wherein the first regulating voltage is greater than the second regulating voltage. The problem of frequency-switching flicker of the display panel can be solved while the fixed-frequency flicker-free display panel is realized.

The invention discloses a pixel circuit, a driving method thereof and a display panel, and belongs to the technical field of display. The pixel circuit comprises a driving module, a threshold compensation module and an initialization module. The first end of the driving module accesses a first power signal, and the second end of the driving module is connected with the anode of the light-emitting device. The threshold compensation module is connected between the control end and the first end of the driving module, and a first scanning signal is accessed; the initialization module is connected with the anode of the light-emitting device, and accesses a first scanning signal, a second scanning signal and an initialization signal; the initialization module is used for responding to the effective potential of the first scanning signal and / or the effective potential of the second scanning signal and transmitting an initialization signal to the anode of the light-emitting device; wherein the second scanning signal has a first frequency, the refresh frequency of the pixel circuit is smaller than or equal to the first frequency, and the frequency of the first scanning signal is equal to the refresh frequency. According to the embodiment of the invention, the display effect of the display panel under low refresh frequency can be improved.

The invention discloses a pixel circuit and a driving method thereof and a display panel, the pixel circuit comprises a time control module, a current control module, a potential holding module and a light emitting module, and the current control module is used for driving the light emitting module to emit light according to a first data voltage in a light emitting stage; the time control module is used for outputting a time control signal according to the second data voltage and the sweep frequency signal and controlling the potential of the control end of the current control module; the control end of the potential maintaining module is connected with the output end of the time control module, the output end of the potential maintaining module is connected with the control end of the current control module, and the potential maintaining module is used for maintaining the voltage of the control end of the current control module at the turn-off voltage according to the time control signal in the light emitting stage. According to the scheme, the potential of the control end of the current control module can be quickly and stably kept at the turn-off voltage when the light emitting module finishes emitting light, so that the stability of the potential of the control end of the current control module is kept, and the current control module is quickly turned off.

The present application discloses a backlight driving method and a liquid crystal display device. The backlight driving method first determines the total luminous flux value of each display partition based on video data and a light intensity coefficient table, then determines the total luminous flux value of each backlight partition according to the total luminous flux value of each display partition, then calculates the light intensity of each lamp bead based on the total luminous flux value of the backlight partition, and then determines the driving parameters of each lamp bead according to the light intensity of each lamp bead, thereby meeting the luminous flux requirements of a moving object at different positions, reducing or avoiding the brightness difference between the moving object at different positions, and thereby improving or avoiding the flickering phenomenon of the moving object.

The utility model discloses a display panel which comprises a plurality of pixel electrodes, a plurality of scanning lines, a plurality of first data lines, a plurality of second data lines and a plurality of thin film transistors. One of the two adjacent thin film transistors located in the row direction of the display panel is electrically connected with one of the two adjacent pixel electrodes located in the column direction of the display panel. The other one of the two adjacent thin film transistors located in the row direction of the display panel is electrically connected with the other one of the two adjacent pixel electrodes located in the column direction of the display panel, and one of the two adjacent thin film transistors located in the row direction of the display panel is electrically connected with the first data line. The other one of the two adjacent thin film transistors located in the row direction of the display panel is electrically connected with the second data line, and the two adjacent thin film transistors located in the row direction of the display panel are electrically connected with the same scanning line; the first data line overlaps the pixel electrode, and the second data line overlaps the pixel electrode.

The invention provides a display device and a driving method thereof.The display device comprises a display panel and a time schedule controller electrically connected to the display panel, and the time schedule controller is used for obtaining a first refresh rate and increasing the first refresh rate to a second refresh rate when the first refresh rate is smaller than a preset refresh rate, and the processor is used for acquiring at least part of the first picture information corresponding to the first refresh rate from the storage unit as repeated picture information, and driving the display panel to display pictures at a second refresh rate according to the repeated picture information, so that the power consumption of the display device is reduced, and the risk of picture flicker is reduced.

The invention provides a display device. The display device comprises a display panel and a driving circuit. The driving circuit comprises a current value calculation circuit which is electrically connected with the signal input end; the gain calculation circuit is electrically connected with the current value calculation circuit; the difference calculation circuit is electrically connected with the gain calculation circuit; the gain delay circuit is electrically connected with the difference calculation circuit; the gain limit calculation circuit is electrically connected with the current value calculation circuit; the judgment circuit is electrically connected with the gain delay circuit and the gain limit calculation circuit; and the multiplication circuit is used for carrying out multiplication on the input first gray scale data and the first gain value output by the judgment circuit and outputting second gray scale data. The difference value of the gain values is calculated through the difference calculation circuit, the gain delay circuit carries out delay calculation processing on the difference value, the gain limit calculation circuit limits the change range of the gain values, and a feedback signal control mode is adopted, so that the flicker phenomenon of a display picture is effectively 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.

This disclosure provides a display screen and its driving method and display system, relating to the field of display technology. The display screen includes a display area, a scanning module, and a driving module. The display area includes multiple rows of sequentially arranged light-emitting elements. The scanning module scans the rows of light-emitting elements according to a preset rule within a scanning cycle. The preset rule is that there is an interval of 'a' rows between the Nth scanned row and the (N+1)th scanned row, where N is an integer greater than or equal to 1, and a is an integer greater than 1. The driving module provides driving signals to the scanned rows of light-emitting elements to drive the light-emitting elements for display. Thus, the successively scanned rows of light-emitting elements are not adjacent and are spaced apart by multiple rows, making the successively scanned rows of light-emitting elements as spatially dispersed as possible, which helps to reduce the flicker perception perceived by the human eye, thereby improving the display effect of the screen.

The invention discloses an infrared image detail enhancement method based on a video stream, and the method comprises the steps: superposing an infrared original image in the video stream to obtain an original image data matrix, carrying out the bilateral filtering and extreme value extraction of the original image data matrix, carrying out the smoothing processing through combining with a historical frame average parameter, and obtaining a parameter enhanced image; and inputting the original image data matrix and the original image data matrix after bilateral filtering into a detail enhancement module for enhancement, carrying out smoothing processing in combination with a historical frame average parameter after extreme value extraction to obtain a parameter enhanced image, and finally, carrying out linear superposition on the parameter enhanced image to obtain an enhanced infrared original image. According to the method, optimization design is carried out on the basis of a single-frame infrared image detail enhancement algorithm, and compared with a single-frame infrared image enhancement algorithm, the enhancement algorithm based on the video stream needs to pay attention to the input image difference between frames and the influence of the difference on the enhanced video stream under the algorithm framework of the enhancement algorithm based on the video stream.

The present invention discloses a display panel and a display device, wherein the display panel comprises an array substrate, the array substrate comprises a base substrate, the base substrate comprises a plurality of first signal lines and a plurality of second signal lines, the plurality of first signal lines and the plurality of second signal lines intersect to define a plurality of pixel units, the display panel is a dot inversion display panel, the pixel units comprise a first pixel unit and a second pixel unit, the first electrode in an even number of adjacent first pixel units has a first slit extending along a first direction, and the first electrode in an even number of adjacent second pixel units has a second slit extending along a second direction, the first direction intersects with the second direction, the first slit and the second slit respectively form an angle with the first signal line, the angle is not equal to 0°, and the even number of first pixel units are adjacent to the even number of second pixel units in both the row direction and the column direction. The present invention improves the problem of flickering of the dot inversion display panel under a grayscale picture with a large viewing angle.

The present invention relates to a multi-perspective fused automobile radar synchronous positioning and mapping method, which belongs to the field of synchronous positioning and mapping technology, and solves the problem of RCS flickering in the prior art. By acquiring the original radar data and corresponding two-dimensional radar images acquired by each automobile radar located at different positions of the automobile; and based on this, obtaining the time and space synchronization between multiple automobile radars, that is, obtaining the radar image in the same spatial coordinate system at the same time; based on the time and space synchronization results, the imaging results of each radar are fused; according to the fused radar image, the radar point cloud at the current moment is extracted; by matching the radar point cloud at the current moment with the radar point cloud at the previous moment, the posture transformation relationship between the vehicle at the current moment and the previous moment is obtained; the posture transformation relationship is solved to perform positioning and mapping. It is achieved that while solving the RCS flicker, accurate positioning results are obtained and a map corresponding to the real environment is reconstructed.

The present invention discloses a flicker value-finding method, comprising the steps of: detecting the screen flicker of a display to be detected within a preset common voltage range, obtaining an initial curve and a fitting straight line about the common voltage-screen flicker corresponding to the display to be detected; determining the minimum screen flicker in the initial curve, and generating a horizontal straight line corresponding to the minimum screen flicker according to the minimum screen flicker; determining the target common voltage of the display to be detected according to the minimum screen flicker, the fitting straight line and the horizontal straight line. The present invention also discloses a drive control method, a value-finding device and a readable storage medium. By applying the flicker value-finding method of the present invention to the value-finding device, the time for finding the target common voltage can be greatly shortened, thereby improving the production efficiency of the display and the work efficiency of the staff.

This application discloses a display panel and its driving method and display device. The display panel includes a gate driving circuit and sub-pixels. The gate driving circuit is connected to a trigger signal and a first clock signal. When both the trigger signal and the first clock signal are on, the light emission control signal output by the gate driving circuit controls the sub-pixels to emit light. The gate driving circuit includes multiple cascaded shift registers, which are used to drive n rows of sub-pixels, where n is an integer greater than or equal to 1. Within one frame, the duration difference between at least two cutoff levels of the trigger signal is t, where t≠0 and |t|≠2*n*H, where H is the scan duration corresponding to one row of sub-pixels. The embodiments of this application can improve the flicker problem of the display panel.

The present invention discloses a light-emitting module and a display device, belonging to the field of light-emitting display technology, wherein the light-emitting module comprises a light-emitting panel, wherein the non-light-emitting area of ​​the light-emitting panel comprises a binding area; the light-emitting module further comprises a driving circuit board and a first flexible circuit board, wherein the first flexible circuit board is electrically connected to the light-emitting panel in the binding area, and the driving circuit board is electrically connected to the first flexible circuit board; the first side of the substrate of the light-emitting panel comprises a plurality of light-emitting elements, and the light-emitting surface of the light-emitting panel is located on the first side; the second side of the substrate comprises a plurality of driving modules, wherein the driving modules drive the light-emitting elements to emit light, and the driving modules are electrically connected to the driving circuit board; the driving modules are electrically connected to the substrate on the second side through the second flexible circuit board, and the light-emitting elements are electrically connected to the second flexible circuit board. The display device comprises the above-mentioned light-emitting module. The present invention can not only reduce the size of the driving board of the integrated driving device in the module, but also improve the problem of screen flickering, which is beneficial to improving the light-emitting quality.