1553 results about "Grey level" patented technology

The invention relates to the technical field of display methods of electronic displays, in particular to a display optimization method and system for a liquid crystal display screen. The method comprises the following steps: acquiring current image frame data and previous image frame data, and calculating an inter-frame difference based on a preset pixel difference threshold; performing threshold judgment based on the inter-frame difference data to obtain motion area data; calculating a gray scale change rate according to the motion area data; performing threshold interception on the gray scale change rate data to obtain response optimization target area data and non-target area data; and performing continuity evaluation on the response optimization target area data, and performing merging processing based on a continuity evaluation result to obtain a continuous rectangular target area group. According to the invention, the dynamic optimization of the liquid crystal display screen is realized by accurately identifying the motion area and carrying out gray scale change calculation, temperature adaptation adjustment and pulse width modulation, and the definition and the display effect of a motion picture are improved.

The invention relates to the technical field of image recognition, in particular to a mechanical casting detection method and system based on image data analysis processing, and the method comprises the following steps: obtaining a casting image gray value, classifying according to a gray scale standard, generating a multi-layer image structure and a layering graph, setting a grid, counting pixels to form a density sequence, extracting a trend region, and building an index table; and extracting multi-angle image boundary point matching intersection points to form a coordinate matrix, screening a stable intersection point set, searching an original image comparison trend coordinate to extract an overlapping region, and generating a defect annotation image result. According to the method, an image is subjected to gray scale division to form a multi-layer structure, texture differential expression is enhanced, a pattern layer grid statistics density sequence is used for extracting a trend region, abnormal distribution positioning is achieved, boundary mutation points in a multi-view image are uniformly mapped, boundary recognition consistency and robustness are improved, and a stable boundary and the trend region are compared and marked; defect expression intuition and credibility are enhanced, and detection precision and stability are improved.

The invention relates to the technical field of liquid crystal display driving control, and discloses a high-refresh-rate liquid crystal display driving method and system, and the method comprises the steps: a motion amount detection module calculates the motion intensity of a dynamic region through inter-frame comparison; the voltage excitation adjusting module applies voltage according to dynamic / static region differentiation, and the dynamic region adopts asymmetric voltage to increase the response speed; the gray scale adjustment module dynamically optimizes the voltage amplitude based on the local contrast so as to smooth the gray scale; the self-adaptive refresh rate module fuses the motion intensity and the image type to switch a refresh rate gear; and the charge balance management module intelligently triggers regional reverse voltage pulses in a static scene to eliminate ghosting. The system eliminates ghost shadows through multi-module cooperation and dynamic charge balance management, intelligently switches refresh rate gears based on motion intensity and cooperates with voltage regulation to reduce static power consumption, adopts regional gray scale compensation to optimize detail display, and combines asymmetric high-voltage driving to improve the response speed of liquid crystal molecules.

The invention discloses a liquid crystal display screen gray scale control method based on adaptive brightness compensation, which relates to the technical field of liquid crystal display screen control, and comprises the following steps: collecting environmental spectrum distribution information and a pixel gray scale voltage response curve of a liquid crystal display screen in real time, and carrying out fusion processing to form a time sequence joint feature vector; through multi-mode synchronous sampling and time sequence joint feature vector generation, ambient light and screen content changes are accurately captured, target adjustment values of backlight power and gray scale voltage are dynamically predicted, and response lag and overshoot are avoided. Through spectral domain balancing and a self-adaptive damping scheduling mechanism, cooperative control of backlight and gray scale is optimized, high-frequency oscillation is suppressed, and linear response of a low-frequency band is ensured. Meanwhile, Gamma mapping and global color gamut calibration are dynamically refreshed, accurate adjustment of area-level brightness and gray scale is achieved, and continuity of the display effect and visual experience of a user are improved.

The invention provides a gray scale compensation method, device and system for a display panel. The gray scale compensation method for the display panel comprises the following steps: acquiring a gray scale compensation reference value group of the display panel; obtaining a current maximum brightness value and a current gray-scale value of the display panel, if the current maximum brightness value is any one of the maximum brightness values of the plurality of binding points, obtaining a corresponding gray-scale compensation coefficient group from a gray-scale compensation coefficient table corresponding to the current maximum brightness value through matching of the current gray-scale value and the gray-scale values of the plurality of binding points, otherwise, obtaining a corresponding gray-scale compensation coefficient group from a gray-scale compensation coefficient table corresponding to the current maximum brightness value; calculating a gray scale compensation coefficient table corresponding to the current maximum brightness value, and obtaining a corresponding gray scale compensation coefficient group from the gray scale compensation coefficient table through the matching of the current gray scale value and the gray scale values of the plurality of binding points; calculating a gray scale compensation value based on the gray scale compensation reference value group and the gray scale compensation coefficient group; and compensating the display panel based on the gray scale compensation value. According to the invention, the flexibility and the compensation effect of gray scale compensation can be improved.

The invention discloses a control management method and system for an LED backlight source, and relates to the technical field of backlight source control. The video decoding module is used for analyzing an input video signal and extracting an image brightness distribution entropy value and a color gamut coverage degree; the backlight partition regulation and control unit is used for dynamically adjusting a backlight partition topological structure; the prediction compensation module is used for generating a future frame brightness change trend and correcting a current backlight driving signal by using a feedforward compensation coefficient; the photoelectric sensing array is used for measuring the reflection characteristic of ambient light in real time; and the collaborative dimming controller is used for acquiring the type information of the playing equipment and loading a differential dimming strategy library. By dynamically analyzing video content characteristics, ambient light conditions and equipment information source types and adjusting a backlight partition structure and brightness output in real time, the HDR scene switching response speed is remarkably improved, the dark field gray scale identification degree is enhanced, backlight instantaneous peak power consumption is reduced, the non-linear brightness requirement of streaming media content is met at the same time, and the real-time performance of the system is improved. And better visual experience is provided for the user, and energy consumption optimization is realized.

The invention provides a backlight dynamic refreshing method and system based on content change frequency, and is applied to the field of image data processing. According to the method, the inter-frame variable quantity of the current image content of the display screen is pre-collected, whether the image refreshing speed is matched with the backlight response or not is judged, the pixel change rate in unit time is calculated based on the frame difference method, the content change frequency index is reasonably divided, the backlight PWM parameters are dynamically adjusted in combination with user setting, and the display quality is improved. The response coordination of the display screen under the dynamic image is effectively improved, when the frame rate fluctuation is recognized, the gray scale compensation frame is introduced and the brightness change slope is limited, and the problems of smear, splash screen and the like caused by asynchronous refreshing can be relieved.

The invention relates to the technical field of liquid crystal display, and provides liquid crystal display equipment based on a field order and a color image display method. An image to be displayed can be decomposed into three sub-frames based on a field sequential display technology, each sub-frame corresponds to a color field, when a liquid crystal panel is driven according to a main color gray scale value of the color field corresponding to each sub-frame, at least one backlight source corresponding to each color field is firstly driven to emit backlight of a first duration within a time period when liquid crystal molecules reach a steady state, and then the backlight source corresponding to each color field is driven to emit backlight of a second duration within a time period when the liquid crystal molecules reach the steady state. The white light of the second duration is emitted after the first duration, so that the white light is added in the backlight lightening stage of each color field, the color gamut range of the color field corresponding to each sub-frame is effectively reduced, and the color separation phenomenon is reduced. In addition, each subframe corresponds to a single color field or a mixed color field, so that the color separation phenomenon in various algorithms can be improved.

The invention relates to display equipment which comprises a liquid crystal display panel, a backlight module and a control circuit. A backlight partition of the backlight module comprises at least one light-emitting unit, the light-emitting unit comprises a first blue light-emitting chip, a green light-emitting chip and a red light-emitting module, and the red light-emitting module comprises a second blue light-emitting chip and a red phosphor located above the second blue light-emitting chip. The control circuit is configured to obtain image frame data, determine input gray-scale values of all color pixels in an image partition corresponding to the backlight partition, and generate all color backlight values of the partition; and driving the green and second blue light-emitting chips based on the green and red backlight values, and not lightening the first blue light-emitting chip or driving the first blue light-emitting chip to carry out blue light brightness compensation based on a comparison algorithm processing result of the blue and red backlight values, thereby improving the display color cast problem. And meanwhile, driving data are generated based on the input gray-scale values of the color pixels to drive the panel, so that the display effect of the display equipment is improved.

The invention relates to the technical field of intelligent manufacturing, in particular to an insect protein extraction automatic production line and quality tracing method based on machine vision, which comprises the following steps of: acquiring an image and pressure data advancing time sequence, comparing a path and pressure fluctuation, identifying an abnormal section image frame, extracting a boundary and gray scale difference, and marking a structure defect. And matching action time, sorting station abnormity, combining a frame sequence and a chamber number, searching a traceability table record, updating an abnormal state field, and forming a quality traceability result set. According to the method, an image particle path and a pressure intensity signal are propelled in parallel in a time dimension, the synchronous recognition capability of image change and a physical state is enhanced, a structural anomaly judgment basis is constructed by particle boundary pixels and gray scale difference, and image time and a push rod action form uninterrupted binding through natural superposition; receiving frames and cavity serial numbers are classified into a unified serial number logic according to a time sequence, abnormal identifiers and channel information are embedded into batch fields in parallel, images are communicated, and abnormal tracing and positioning are carried out.

The invention relates to the technical field of anomaly detection, in particular to a circuit board processing anomaly detection system which comprises an image anchoring module, a gray scale comparison module, a candidate area screening module, a gradient closing verification module and a behavior track evolution module. According to the method, by setting the gray scale anchor points in the image frames and collecting the standard gray scale values, deviation accumulation caused by the overall illumination change of the image can be effectively avoided, the response delay area is recognized through inter-frame gray scale comparison, and early intervention on the etching abnormal process is achieved; a gray scale fluctuation low-amplitude segment in an image boundary region is extracted to recognize a texture missing region, the recognition accuracy of structural blur is enhanced, fine extraction of an abnormal structural form is realized in combination with gray scale gradient chain construction and a closed error judgment mechanism, region response change trajectory tracking in a frame sequence is superposed, and the recognition accuracy of structural blur is improved. Therefore, the judgment is not limited to single-frame anomaly detection and has a time sequence evolution recognition capability, an abnormal symptom region is stably captured, and a reliable detection result is generated.

The invention discloses a multi-modal ultrasonic image intelligent analysis system based on deep learning, particularly relates to the field of ultrasonic image intelligent analysis, and is used for solving the problems of speckle noise and displacement artifacts caused by sound beam attenuation during deep abdomen scanning of a bedside ultrasonic person with a relatively high in-vivo quality index. Partition noise reduction is guided through pixel noise distribution associated with depth and attenuation, and deep micro-textures are reserved; the color flow velocity and the elastic displacement are anchored through the noise reduction gray scale edge, three-mode sub-pixel alignment is completed, and cross-channel deformation and drift are eliminated; the self-attention fusion network synchronously extracts texture, speed and hardness features on the unified alignment surface to realize coupling of a complete biological structure and dynamic information; the texture residual error rate and the flow rate matching degree form complementary evaluation, noise distribution and alignment grid real-time self-adjustment are driven, frame-by-frame iteration convergence is achieved, and image definition and feature consistency are continuously improved.

The invention discloses a display device and a defect pixel compensation method of the display device, the display device comprises a display panel and a processor, the processor determines the defect type of a defect sub-pixel and an initial gray scale value corresponding to the defect sub-pixel; determining at least one target gray-scale value according to the defect type of the defective sub-pixel, the initial gray-scale value and a plurality of to-be-displayed gray-scale values corresponding to the defective pixel to which the defective sub-pixel belongs; based on the at least one target gray-scale value, updating the to-be-displayed gray-scale values corresponding to other sub-pixels in the defective pixels; and the display panel displays the to-be-displayed image after the plurality of to-be-displayed gray-scale values corresponding to the defect pixels are updated. According to the target gray-scale value, the to-be-displayed gray-scale values of other sub-pixels except the defective sub-pixels in the defective pixels are updated, so that the display color cast problem caused by the defective sub-pixels is compensated, the perceptibility of the defective sub-pixels in human eyes is reduced, and the display effect of the display device is improved.

The invention discloses a brightness compensation method and a display device. The brightness compensation method comprises the following steps: for a target pixel in a display panel, obtaining a target brightness level of the display panel and a target gray-scale value of the target pixel; determining a reference gray-scale value corresponding to the target gray-scale value under the target brightness level from the first mapping data; when the reference gray-scale value comprises a reference virtual binding point value, determining offset correction data of the reference virtual binding point value under the target brightness level from the second mapping data; according to the offset correction data of the reference virtual binding point value and the brightness offset data of the reference original binding point value corresponding to the reference virtual binding point value, determining the brightness offset data of the target gray-scale value; and performing brightness compensation on the target pixel according to the brightness offset data of the target gray-scale value. According to the invention, the brightness of the display panel can be accurately compensated.

The present invention discloses a driving method and a pixel circuit for a pixel circuit. The pixel circuit includes at least two driving transistors connected in parallel, and the aspect ratios of the at least two driving transistors are different; the driving method of the pixel circuit includes: obtaining the maximum display brightness value of a preset area in the to-be-displayed picture; determining whether the maximum display brightness value of the preset area is greater than a first preset value; if the maximum display brightness value of the preset area is greater than the first preset value, when the to-be-displayed gray level in the preset area is less than a preset gray level, controlling the driving transistor with the smallest aspect ratio in the pixel circuit corresponding to the preset area to drive; if the maximum display brightness value of the preset area is less than or equal to the first preset value, controlling the driving transistor with the smallest aspect ratio in the pixel circuit corresponding to the preset area to drive. The present invention can improve the mura phenomenon.

The invention provides a time sequence control circuit, a data driving circuit, a display panel and a data output method. Wherein the time sequence control circuit is used for receiving an image signal and correspondingly outputting a data signal and a data latch signal, and the time sequence control circuit at least comprises a detection unit and a signal generation unit. The detection unit determines a corresponding refresh rate according to the data signal and outputs a corresponding detection signal. The signal generation unit outputs a data latch signal according to the detection signal, and adjusts the duty ratio of the data latch signal or the switching speed of the two potentials when the refresh rate is increased. The data driving circuit outputs a gray scale voltage corresponding to the data signal to a pixel unit in the display panel according to the data latch signal.

The invention discloses a gray scale compensation data generation method, processing equipment and a display device, and the method comprises the steps: obtaining first brightness data corresponding to a first gray scale under first display brightness, determining second brightness data corresponding to a second gray scale under second display brightness according to the first brightness data, and determining gray scale compensation data corresponding to a second gray scale under the second display brightness according to the second brightness data. According to the technical scheme provided by the embodiment of the invention, the data quality problem caused by insufficient exposure or noise interference when the brightness data is directly shot and collected under low DBV is avoided, the quality of the second brightness data is improved, the gray scale compensation data generated based on the second brightness data can more accurately repair the Mura phenomenon, and the Mura compensation effect is improved. Meanwhile, exposure time does not need to be increased to make up for insufficient brightness, Tact Time can be greatly shortened, and production efficiency is improved.

The invention relates to a method for displaying sixteen gray scales by an electronic paper price tag type display module, which comprises the following steps of: performing refreshing by utilizing a condition that at most four waveforms are controlled during refreshing each time in a new and old data comparison mode by utilizing a 1-bit data IC (Integrated Circuit) of electronic paper, identifying the first three gray scales and pure white gray scales in sixteen gray scale data during the first refreshing, and displaying the sixteen gray scales in the sixteen gray scale data; converting into data of corresponding waveforms, and brushing four corresponding gray scales through the debugged gray scale waveforms; in the second to fifth refreshing, three pieces of gray scale data are identified each time, and the debugged corresponding gray scale waveform is called to brush out three gray scales; the method is used for sixteen-gray-scale display through five times of superposition of different-gray-scale pictures.

The invention provides a color stripe removing method and device and a display device.The method comprises the steps that a viewpoint mapping graph of a display panel is obtained, the viewpoint mapping graph comprises the corresponding relation between pixels and viewpoints of the display panel, and the pixels comprise multiple sub-pixels; according to the viewpoint mapping graph, determining the number and the arrangement sequence of sub-pixels corresponding to the first viewpoint in the first viewpoint period; and according to the number and the arrangement sequence of the sub-pixels corresponding to the first viewpoint in the first viewpoint period, adjusting the gray-scale values of the sub-pixels in the first viewpoint period so as to control the brightness of the sub-pixels in the first viewpoint period. By means of the method, color stripes appearing when the display device displays in a naked eye mode can be reduced or even eliminated, and therefore the naked eye display effect of the display device is improved.

The invention provides a display device and a driving method thereof, and the display device comprises a display module which comprises a time schedule controller and a display panel which are electrically connected; the backlight module comprises a backlight driving circuit and a light-emitting unit which are electrically connected, and the backlight driving circuit is used for driving the light-emitting unit to emit light; the control module is electrically connected with the backlight module and the display panel; the control module is configured to analyze a frame image in a received video signal to obtain sub-field pixel data and sub-field backlight data; and generating the liquid crystal driving signal and the backlight driving signal according to the sub-pixel data and the sub-field backlight data, and sending the liquid crystal driving signal and the backlight driving signal to the time schedule controller and the backlight driving circuit. According to the method, the gray-scale value of the input data is mapped, the color depth of field order display is improved, and the time crosstalk problem is optimized.

The invention discloses a display uniformity compensation method based on machine learning, a storage medium and a terminal. The method comprises the following steps: providing a plurality of target gray scale data; acquiring a plurality of acquisition pictures; acquiring compensation result gray scale data of each acquired picture; providing a machine learning model; completing training and testing of a machine learning model based on the target gray scale data and the compensation result gray scale data; solidifying the model architecture and the model parameters of the machine learning model to the to-be-compensated display equipment; and outputting the application gray scale data of the to-be-compensated display equipment based on the machine learning model. Based on the machine learning model, the application gray scale data of the to-be-compensated display equipment can be quickly output, and the display uniformity compensation effect and efficiency of the to-be-compensated display equipment are effectively improved. In addition, the model architecture of the machine learning model passing the test and the model parameters are solidified to the to-be-compensated display device, compensation data can be effectively reduced or even completely not required to be stored any more, and the cost of data storage and driving operation is greatly reduced.

The embodiment of the invention discloses a brightness compensation method and device, display equipment, a storage medium, a chip and a product, and belongs to the technical field of image processing. Under the condition that a first DBV indicated by the brightness setting instruction does not belong to the target DBV, a first pixel brightness value corresponding to the first DBV is determined based on the first DBV and a brightness mapping table, the target DBV is the DBV with the determined brightness compensation information, and the first pixel brightness value is the brightness value of the pixel point when the DBV of the display device is set to be the first DBV and the gray-scale value is the maximum gray-scale value; for any pixel point in the current display picture, a second pixel brightness value is determined based on the first pixel brightness value and the first pixel value of the pixel point, and the second pixel brightness value is the brightness value of the pixel point when the DBV of the display device is set to be the first DBV and the gray-scale value is the first gray-scale value of the pixel point; and performing brightness compensation on the pixel point based on the second pixel brightness value and brightness compensation information corresponding to the target DBV.

The embodiment of the invention provides a thermosensitive gray scale printing method and device, a storage medium and electronic equipment, and is applied to a thermosensitive printer, the method comprises the steps that to-be-printed Mth row of gray scale data is received, the Mth row of gray scale data is the Mth row of data in a K-order gray scale image, M is a positive integer larger than or equal to 1, and K is a positive integer larger than or equal to 2; the M-th line of gray scale data and first reference information are stored in a first memory, and the first reference information comprises the number of points to be heated of each level of gray scale data in the M-th line of gray scale data, a starting byte of each level of gray scale data in the M-th line of gray scale data and an ending byte of each level of gray scale data in the M-th line of gray scale data; and based on the first reference information, sequentially extracting gray scale data of each scale in the M-th line of gray scale data, and controlling the thermal printing head to execute thermal printing operation on the thermal medium according to the gray scale data of each scale in the M-th line of gray scale data until the M-th line of gray scale data is printed.

The invention provides a low-gray-scale image imaging defect visual detection method and system for an OLED display screen. The method comprises the following steps: aiming at original image data of a display screen, extracting a gray scale picture with a pixel brightness mean value lower than a preset brightness threshold value as a first image, carrying out color characteristic analysis on the first image, and generating a second image marked with a chromaticity feature vector; identifying the chromaticity feature vector according to the second image, generating a feature vector matrix for representing chromaticity distribution of each pixel in the second image, and performing color jump analysis through the feature vector matrix to obtain a third image; extracting a jump region in the third image, and setting marks for distinguishing different dispersion distribution for chromaticity distribution dispersion distribution according to the jump region to obtain a fourth image; and identifying dispersion distribution according to the fourth image, combining with a chromaticity abnormal pixel region in the hopping region, performing pixel classification in the hopping region, and setting defect marks for pixels with imaging defects represented by a classification result to obtain a fifth image.

The invention relates to an electronic paper display mapping method based on visual perception and dynamic clustering, and belongs to the technical field of display. According to the method, firstly, learning factors and particle weights of a particle swarm optimization algorithm are dynamically adjusted, a gray segmentation threshold is optimized in combination with K-means clustering, and the accuracy and convergence efficiency of gray distribution are remarkably improved; secondly, establishing a dynamic error diffusion system based on visual perception, designing a frequency domain visual weighted filter and a spatial domain sensitivity function by combining a human visual perception theory, dynamically compensating quantization errors and enhancing edge details; and meanwhile, a Floyd-Steinberg error diffusion algorithm is improved, and a double image effect is inhibited in combination with a snakelike scanning path. According to the electronic paper display mapping method based on visual perception and dynamic clustering, the electronic paper image display quality is effectively improved, particularly when a high-gray-scale image is displayed, details can be reserved to the maximum extent, and the problems of gray-scale distortion and edge blurring in traditional electronic paper display are solved.

The embodiment of the invention provides a display screen direct-drive display method based on a data algorithm, and belongs to the field of display screen display methods. The method comprises the following steps: acquiring RGB frame data and environment sensing data; preprocessing the acquired RGB frame data, generating an importance degree matrix, and grading the image area of the display screen; dynamically distributing the number of sub-cycles of pulse width modulation, matching different pulse widths for image areas of the graded display screen, and generating a compensated gray matrix by using a nonlinear compensation method; generating a dead pixel position matrix according to the scanned pixel state of the display screen, and generating a compensated brightness matrix of the display screen by using a brightness diffusion compensation method; a plurality of logic boards are dynamically synchronized by utilizing an FPGA, and a dead pixel avoidance mechanism is adopted to realize direct-drive display of a display screen. According to the invention, pocking marks are eliminated, low gray scale maintains high refresh rate, chromatic aberration is reduced, dead pixels of the display screen do not need to be halted for maintenance, cost is reduced, brightness is compensated for natural transition, and visual uniformity is compensated for.

The embodiment of the invention provides a display device and a display panel, relates to the technical field of display, and is used for improving the display effect of the display panel. The display device includes a control circuit and a display panel. The control circuit outputs a first control signal when the refresh frequency of the display device is a first frequency, or outputs a second control signal when the refresh frequency of the display device is a second frequency. The first frequency is greater than the second frequency. The display panel comprises a plurality of scanning circuits and a plurality of rows of sub-pixels, and each scanning circuit is connected with at least one row of sub-pixels. The scanning circuit outputs a first scanning signal according to the first control signal, or outputs a second scanning signal according to the second control signal. Wherein the signal parameter of the first scanning signal is different from the signal parameter of the second scanning signal, so that the brightness difference when the display panel displays the set gray scale at the first frequency and the second frequency is within a preset range.

The present application provides a display aging compensation method and related apparatus, relating to the field of terminal technology. The method includes: for the same grayscale at different display brightnesses of the electronic device, different grayscale compensation methods may be used to compensate for the display aging of the electronic device. Based on the aging attenuation direction of each grayscale at different brightnesses, a matching grayscale compensation method is used to perform display compensation. The grayscale compensation method includes increasing the grayscale method or decreasing the grayscale method. Grayscale compensation is performed by utilizing the characteristic that the aging attenuation direction of each grayscale at different display brightness is inconsistent. In this way, the afterimage caused by inaccurate grayscale compensation can be reduced, thereby improving the grayscale compensation effect of each grayscale in the full brightness range.

A cockpit display system includes a cockpit, a first display apparatus, a first light sensor, a second light sensor and a brightness distribution calculation module. The first light sensor is suitable for detecting a first ambient light brightness. The second light sensor is suitable for detecting a second ambient light brightness. The brightness distribution calculation module is suitable for respectively calculating a first brightness and a second brightness of the first display area and the second display area of the first display apparatus under a same display gray level according to the first ambient light brightness and the second ambient light brightness. The first brightness and the second brightness are different from each other.

The invention relates to a real-time image quality optimization method and system for intelligent display equipment, and the method comprises the following steps: carrying out the real-time sensing of the preset environment illumination intensity and watching distance of the display equipment, and obtaining a scene parameter data stream; performing dynamic brightness mapping on a target display image in the display device based on the scene parameter data stream to obtain a brightness compensation curve; performing pixel-level modulation on the target display image based on the brightness compensation curve to obtain image enhancement data; performing color space conversion on the image enhancement data to obtain a color enhancement matrix; gray scale voltage modulation is carried out on the display panel based on the color enhancement matrix, an optimized display image is obtained, and the technical problem that overexposure or color distortion of an image is prone to occurring in a strong light or weak light environment due to the fact that a traditional image enhancement technology is difficult to adapt to a complex and changeable viewing environment is solved.