7510 results about "Liquid crystal" patented technology

The invention provides a liquid crystal composite for an active-matrix-addressed electro-optical display device and application of the liquid crystal composite. The liquid crystal compound comprises a compound with a general formula (I) which occupies 10 percent to 30 percent of the total weight of the liquid crystal composite, a compound with a general formula (II) which occupies 5 percent to 30 percent of the total weight of the liquid crystal composite, a compound with a general formula (III) which occupies 10 percent to 40 percent of the total weight of the liquid crystal composite, and a compound with a general formula (IV) which occupies 10 percent to 60 percent of the total weight of the liquid crystal composite. The liquid crystal composite provided by the invention has a relatively high response speed and good low temperature storage stability. The invention further provides the active-matrix-addressed electro-optical display device comprising the liquid crystal composite.

The invention relates to the technical field of liquid crystal display, and discloses an intelligent driving method and system for a liquid crystal display screen, and the method comprises the following steps: S1, collecting environment, content and user behavior information, and constructing a multi-modal fusion feature vector; s2, extracting features by using a physical enhanced neural network, and generating visual importance mapping in combination with a liquid crystal response model; s3, dividing a display area based on visual importance and a content change rate, and calculating a refresh priority and a refresh rate; s4, determining an optimal driving parameter in combination with a multi-objective optimization model; s5, executing driving control and collecting response data; and S6, updating the liquid crystal health map and network parameters to realize closed-loop optimization. According to the method, a multi-modal perception and fusion feature vector construction technology is adopted, environment information, display content information and user behavior data can be comprehensively collected, and high-dimensional feature vectors are generated by reasonably fusing the information.

The embodiment of the invention belongs to the technology of display equipment, and provides liquid crystal display equipment based on field sequential display and a color image display method thereof.The liquid crystal display equipment comprises a liquid crystal display screen, a backlight module and a processor, the liquid crystal display screen is divided into a plurality of backlight partitions used for displaying images, and the backlight module is used for emitting backlight; the backlight is used for adjusting the backlight brightness of the display image corresponding to the four-field sequence. And the processor is used for acquiring RGBW image pixel data of the image in the backlight partition, and acquiring backlight brightness data corresponding to the RGBW color based on a preset backlight extraction algorithm according to the RGBW image pixel data. And the processor is also used for determining image compensation pixel data corresponding to the RGBW color based on a preset pixel compensation algorithm and the backlight brightness data corresponding to the RGBW color. And the liquid crystal display screen is used for displaying a color image according to the image compensation pixel data corresponding to the RGBW color. The power consumption of the display equipment is reduced, and the user experience is improved.

The invention relates to the technical field of display screen detection, and discloses a liquid crystal display screen color difference detection system and method.The system comprises a multispectral imaging module, a curved surface deformation modeling module, a coupling tensor decomposition module, a biological excitation feature extraction module, a dynamic compensation control module and a technological parameter interface module; the method comprises the following steps of synchronously collecting a multispectral image and screen deformation data, constructing and decomposing a multidimensional tensor containing geometric constraints, extracting biological excitation visual features, and generating and applying voltage compensation through model prediction control so as to dynamically correct the color difference of the flexible screen. According to the method, through multispectral and geometry synchronous perception, multidimensional tensor constraint decomposition, biological excitation and deformable convolution feature extraction, time-varying model prediction control and dynamic weight adjustment of fused manufacturing parameters, high-precision capture and personalized compensation of the dynamic chromatic aberration of the flexible screen are realized. The defects of dynamic perception, quick response and individual adaptability are overcome.

The invention relates to the technical field of display screens, in particular to a liquid crystal display screen backlight local dimming method and device, a terminal and a medium. Comprising the steps of obtaining brightness and color distribution data of a display picture; calculating a target brightness value of each backlight block through the dimming algorithm module based on a dynamic partition control strategy and a preset brightness mapping model; wherein the dynamic partition control strategy is used for dividing adjacent backlight blocks into dynamic dimming groups according to brightness characteristics of a picture area on the premise that the number of the backlight blocks is not increased; the backlight control device drives an LED backlight block of the backlight module according to the target brightness value; and monitoring a display effect in real time, and adjusting parameters of the brightness mapping model based on feedback. According to the invention, the problems of cost increase and related derivation caused by increase of the number of partitions in the prior art can be solved.

The invention belongs to the technical field of flame-retardant macromolecules, and particularly relates to intrinsic heat-conducting flame-retardant recycled epoxy resin and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out a reaction on diethanol amine and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) to obtain an intermediate A; and (2) carrying out condensation polymerization on the intermediate A and phenylphosphonic acid to prepare the phosphate-terminated polyester flame retardant (PEF). And (3) carrying out epoxidation on 4, 4 '-biphenol to prepare the liquid crystal epoxy precursor LEP. And (4) mixing PEF, LEP and 3, 3 '-dithiodipropionic acid, and heating and curing to prepare the epoxy resin. The prepared epoxy resin has intrinsic heat conduction, flame retardance and efficient recoverability, and is a high polymer material with great potential.

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 relates to a quick response liquid crystal phased array intelligent antenna system for a satellite internet of things, and the system comprises a sensing system which is used for collecting a terminal state, a satellite orbit, an environment state, and self-calibration information; the control system is used for generating an optimal beam control strategy based on a multi-target optimization algorithm in combination with the information acquired by the sensing system; the execution system is used for decomposing the optimal beam control strategy into the direction and shape of each beam; and the interconnection system is connected and communicated with an external network based on a plurality of communication interfaces.

The invention discloses a pipe fitting cutting device for liquid crystal display screen machining, and relates to the technical field of pipe fitting cutting, the pipe fitting cutting device comprises a rack, and further comprises a pipe fitting clamping and rotating mechanism, a rotating ring rotating control mechanism, a pipe fitting front-back driving mechanism and a pipe fitting opposite-direction cutting mechanism, and the pipe fitting clamping and rotating mechanism comprises two front-back corresponding supporting rings; the bottom of the supporting ring on the front side is installed on the upper side of the rear end of the rack, the two supporting rings are connected through a supporting ring distance adjusting telescopic rod piece, each supporting ring is provided with a ring center clamping execution assembly, and the ring center clamping execution assemblies are connected with ring center clamping transmission assemblies. The rotating ring rotation control mechanism is connected with the ring center clamping transmission assembly; when the pipe fitting cutting device for liquid crystal display screen machining works, the cutting depth is only the thickness of the pipe wall of the pipe fitting to be cut, abrasion of the circular cutter can be effectively reduced, the cutter is prevented from being clamped or even damaged, and meanwhile the cutting face of the pipe fitting is smooth.

The invention discloses a zero-sample liquid crystal display screen defect detection method. According to the scheme, the method comprises the following steps: 1) collecting and processing image data of a display screen; 2) constructing an image-text comparison pre-training model (CLIP) to carry out text-image similarity calculation; 3) designing a self-adaptive prompt network, combining static and dynamic prompts and designing an optimal fusion weight, realizing self-adaptive combination of prompt semantics, and improving the adaptability of the model; (4) semantic separation loss is added into the global features of the text, and the semantic separability of the normal text and the defect text is improved; and 5) before image classification, a feature improvement module for abnormal guidance is inserted into classified visual features to enrich the visual features, and the ability of alignment with the text is further improved. The method is suitable for a cold start stage of display screen defect detection, can solve the problems that in display screen zero sample detection, 'defect 'semantics are difficult to understand, and normal defect attributes are difficult to separate, and remarkably improves the classification and positioning capability of display screen defects.

A display device is provided, which includes a display panel. The display panel includes a first substrate, a second substrate, a cholesteric liquid-crystal (ChLC) layer, and a driving circuit section. A plurality of first electrodes formed on the first substrate extend in a first direction. A plurality of second electrodes formed on the second substrate extend in a second direction different from the first direction. The ChLC layer is formed between the first substrate and the second substrate. The driving circuit section is configured to apply a plurality of alternating-current (AC) voltage pulses to pixel circuits at intersections between the first electrodes and the second electrodes. The driving circuit section is further configured to perform a full screen reset procedure to the display panel followed by a pulse-width modulation (PWM) scanning procedure to control cholesteric molecules within the pixel circuits to enter a focal conic state.

The invention relates to the technical field of quality detection, in particular to an AI-based liquid crystal glass plate defect detection method and system, comprising multi-modal data acquisition, adaptive preprocessing, dynamic intelligent detection, defect cognition decision, closed-loop feedback execution, a safety guardrail mechanism and digital twin support. Compared with the prior art which adopts a single imaging mode for surface detection and has the defects that the omission ratio of tiny flaws is high and metal and PR defects are difficult to distinguish, the scheme innovatively introduces a multi-mode collaborative acquisition mechanism, and the detection accuracy is improved through millisecond-level synchronization and space registration of four sets of bright field, dark field, ultraviolet and structured light imaging systems. A comprehensive data cube containing textures, metal features, fluorescence response and three-dimensional morphology is constructed, full-dimensional capture and accurate characterization of micron-sized flaws are achieved, and the detection rate and classification accuracy of complex flaws are remarkably improved.

The invention relates to a backlight module LED model selection method and device, electronic equipment and a storage medium, and the method comprises the steps: responding to a data configuration operation in a graphical interface, and obtaining a configured reference spectrum data source, a diaphragm penetration rate frequency spectrum and a liquid crystal panel penetration rate frequency spectrum; performing spectrum modulation simulation processing on the reference spectrum data source, the diaphragm penetration rate spectrum and the liquid crystal panel penetration rate spectrum according to an optical structure hierarchical relationship of a simulation backlight module to obtain colorimetric parameters of the simulation backlight module; and determining a backlight module LED model selection result according to the colorimetric parameters. In this way, the actual assembling and measuring process of the backlight module is converted into mathematical operation, the backlight scheme of the simulated backlight module can be evaluated under the condition that the backlight module is not actually assembled, then the optimal LED model selection result of the simulated backlight module is determined, the development efficiency of the newly-assembled screen backlight module is improved, and the development cost is reduced.

The invention discloses an alanine aminotransferase detection device and method based on a liquid crystal microcavity array, and belongs to the field of optical sensing. The device comprises a functional liquid crystal microcavity array, an excitation optical fiber and a collection optical fiber, the microcavity array is composed of liquid crystal microcavities doped with fluorescent dye and stearic acid, and the multiple microcavities are independently distributed and serve as optical sensing units; the excitation optical fiber is used for synchronously exciting the microcavity to generate an echo wall mode, and the acquisition optical fiber acquires resonance spectrum signals of each channel in real time; the functionalized liquid crystal microcavity is converted into a bipolar configuration from a radial configuration in an enzymatic reaction, echo wall mode spectrum red shift is caused, spectrum shift time is in negative correlation with enzyme concentration, and dual-channel detection is realized by matching with conversion time of a polarized light pattern. According to the detection structure based on the liquid crystal microcavity array provided by the invention, high-flux, real-time and label-free rapid detection on the concentration of alanine aminotransferase can be realized.

The invention discloses a liquid crystal display screen bright and dark line adjustment optimization method and system and a display screen, and relates to the technical field of liquid crystal display screens, and the method comprises the following steps: constructing a femtosecond resolution synchronous sampling matrix, employing a photoelectric hybrid probe to carry out in-phase collection on driving voltage rising edges of a plurality of sub-channels of the liquid crystal display screen, generating an original waveform database of the multi-channel driving voltage; based on an original waveform database, quantum dot calibration pulses with time marks are injected into all the sub-channels, phase deviation sequences among all the sub-channels are analyzed and extracted through timestamp linkage, and a cross-channel synchronization deviation reference baseline is established. By means of high-precision sampling and difference frequency regulation and control, approximate synchronization of multi-channel driving voltage of the liquid crystal display screen is achieved, accurate recognition is achieved, phase deviation is dynamically corrected, abnormal display phenomena such as frame skipping, ghost shadows and color cast are remarkably eliminated, and visual consistency and display stability in a high-dynamic scene are improved.

The invention relates to the technical field of display, and discloses a self-adaptive color cast compensation method and device for a liquid crystal display screen and a storage medium, and the method comprises the steps: collecting real-time ambient light change data, and generating an ambient light feature data set; analyzing a mapping relation between screen color deviation and light parameters in the ambient light feature data set, and determining an interference mode of ambient light on screen colors; constructing a color rule database according to the interference mode, and generating a reference data matrix for real-time color cast compensation; based on the reference data matrix, generating an adaptive color adjustment curve, and determining color compensation parameters under different ambient light conditions; a color compensation scheme is generated according to the color compensation parameters, and color presentation of a display screen is adjusted in real time. The problem that the color of the liquid crystal display screen deviates in a complex and changeable light environment is solved, real-time correction of the liquid crystal display screen is achieved, and the accuracy of color display in different light environments is ensured.

The invention discloses an LED liquid crystal display screen brightness and color difference detection and correction method and system, and belongs to the technical field of liquid crystal display. Initial brightness values and color values of all display units of a display screen are obtained; constructing a brightness and color difference reference model based on the convolutional neural network, and calculating a brightness deviation delta L and a color deviation delta C between the brightness and color difference reference model and a standard value; constructing a brightness-color difference error matrix W; according to the error matrix and in combination with a self-adaptive threshold algorithm, identifying a brightness-color difference abnormal region and corresponding coordinates of the brightness-color difference abnormal region; based on a deviation scoring result, introducing a gradient regression model to generate a brightness gain coefficient and a color adjustment coefficient, and constructing a correction parameter set P; the parameter set is issued to a control chip, dynamic image signal modulation and local frame level refreshing are executed, and point-by-point brightness and color difference correction is achieved; the method has the advantages of high precision, high automation, high adaptive capacity and the like, and is suitable for improving the brightness and color difference uniformity in various LED liquid crystal display screen scenes.

The invention discloses an LCD display screen production quality collaborative management and control method based on a detection data chain, particularly relates to the technical field of industrial production quality management, and is used for solving the problem of quality root cause misjudgment caused by complex association of multi-source data in the existing liquid crystal display screen manufacturing process. The method comprises the following steps of: constructing a detection data chain covering an array, a box forming process and a module process, firstly performing multi-source data correlation analysis to obtain a variable pair set, then analyzing an intermediary influence path between variable pairs to eliminate false correlation, and then determining a real causal direction by applying a causal discovery algorithm based on conditional independence. Carrying out unsupervised clustering analysis on the basis of defect characteristic indexes, verifying the consistency of causal directions in different data subsets, and finally outputting a stable quality root cause analysis result to realize accurate positioning and effective management and control of key process parameters.

The invention relates to the field of display adjustment, in particular to a self-adjustment liquid crystal display based on multi-source data analysis and an adjustment method thereof.The method comprises the steps that an eyeball recognition model based on a YOLOv8 frame is constructed, a comprehensive loss function is constructed, and a weighted Foca loss item is determined according to the ambient light intensity and the real diameter of an eyeball; the eyeball boundary constraint item is determined based on the real eyeball diameter and the predicted eyeball diameter, the binocular constraint item is determined based on the binocular distance, and the predicted eyeball diameter and the binocular distance are determined by calculating the eyeball recognition area; determining an eyeball change area and a blinking frequency value of the user through an eyeball recognition model; and calculating an expected brightness value, and carrying out brightness self-adjustment control on the liquid crystal display based on the expected brightness value. The self-adjusting liquid crystal display based on ambient light and vision is realized, accurate brightness adjustment can be realized in combination with multi-source data such as the eyeball state of a user and the ambient light intensity, so that the user experience is improved, and the visual fatigue is reduced.

The invention provides a liquid crystal aligning agent, a liquid crystal alignment film, a liquid crystal display element and a manufacturing method of the liquid crystal aligning agent. The liquid crystal aligning agent can obtain a liquid crystal alignment film which has excellent adhesion and can inhibit AC ghosting at a high level. A liquid crystal aligning agent containing a polymer component P containing one or more polymers, a compound C1, and a compound C2, the polymer component P containing at least one polymer p selected from the group consisting of polyimide precursors and polyimides that are imides of the polyimide precursors. Compound C1 is a compound having two or more structures represented by formula (c-1). The compound C2 is a compound represented by formula (c-2).

The invention provides a spatial light modulator, a self-checking device thereof and a light computing device, and relates to the technical field of optical modulation.The spatial light modulator comprises an incident waveguide structure, a covering plate, a liquid crystal layer, a substrate and an emergent waveguide structure; the incident waveguide structure is optically coupled with the cover plate and is used for guiding externally incident laser into the cover plate at a preset angle; the covering plate is used for enabling laser to be propagated in the covering plate in a total reflection form; the substrate bears the liquid crystal layer, integrates the driving circuit and is used for applying regulation and control voltage to the liquid crystal layer; the liquid crystal layer is arranged on the lower side of the covering plate and used for conducting phase modulation on the laser transmitted to the liquid crystal layer in a total reflection mode in response to the regulation voltage. And the emergent waveguide structure is optically coupled with the covering plate and is used for guiding the laser modulated by the liquid crystal layer out of the covering plate to a free space. According to the spatial light modulator, efficient spatial modulation and accurate control of the light field are realized, so that the integration and function accuracy of the spatial light modulator in self-inspection and light calculation are improved.

The invention discloses a preparation method of a polymer dispersed liquid crystal holographic grating with s polarization high diffraction characteristics, and belongs to the technical field of holographic optics. Raw materials comprise 60-90% of a thiol-ene monomer, 10-40% of liquid crystals, a photoinitiator accounting for 1.25% of the mass of the monomer, and a coinitiator accounting for 1.56% of the mass of the monomer. Light with the wavelength of 532 nm and the light intensity of 5-30 mW / cm < 2 > is used for carrying out double-interference photoetching to generate photochemical reaction so as to generate the polymer grating film, and the light is s polarized light. Under the optimal recording condition, delta n under s polarization can reach 1.93 * 10, and delta n under p polarization can reach 1.21 * 10. In combination with morphology analysis, it is found that refractive index modulation strongly depends on the proportion of a liquid crystal-rich phase to a polymer-rich phase in the grating. It is proved that the size of liquid crystal microdroplets formed by holographic recording is larger due to low recording intensity, and therefore the threshold driving voltage of the HPDLC grating is reduced.

The viewing window for the roof of the passenger train comprises an outer frame, the outer frame is of a hollow frame structure, the outer frame is of an arc-shaped structure with the middle protruding, a display assembly is installed in the outer frame, the display assembly is matched with the bent shape of the outer frame, the display assembly comprises a first transparent plate and a second transparent plate, and the first transparent plate is connected with the second transparent plate. The first transparent plate and the second transparent plate are glued and fixed, the first transparent plate is arranged on the outer side of the second transparent plate, the second transparent plate is close to the inner side of a carriage, a liquid crystal dimming film is arranged between the first transparent plate and the second transparent plate, and the liquid crystal dimming film is connected with a voltage or current control circuit in a vehicle body to change the light transmittance of the liquid crystal dimming film. According to the viewing window for the roof of the passenger train, in the display assembly, the laminated glass and single-layer glass structure is adopted to be bonded with the liquid crystal dimming film, the intensity of light in the train can be manually adjusted according to different time periods and illumination conditions, and more comfortable, safer and more environment-friendly travel experience is provided for passengers.

The invention relates to an electromagnetic shielding resistant PPS alloy material containing modified carbon nanotubes, and belongs to the technical field of polymer composite materials. The PPS alloy material comprises 70-85 parts of polyphenylene sulfide, 5-15 parts of polyether-ether-ketone or a liquid crystal polymer, 3-8 parts of carbon nanotubes subjected to acyl chloride-amido double-step modification and 5-12 parts of carbon fibers subjected to oxidation treatment, and the carbon fibers subjected to oxidation treatment are covalently connected with the carbon nanotubes subjected to double-step modification. 0.5 to 1.5 parts of a coupling agent, 0.3 to 0.8 part of an antioxidant and 0.2 to 0.6 part of a lubricant. According to the invention, the carbon nanotubes are subjected to surface grafting group modification, and the carbon fibers are subjected to surface oxidation treatment, so that the technical problems that the carbon nanotubes are easy to agglomerate, the interface between the carbon fibers and the matrix is weak, and the shielding efficiency and the mechanical property are difficult to consider are solved, and the carbon nanotubes and the PPS matrix form a composite reinforced structure; the comprehensive improvement of the material in the aspects of electromagnetic shielding, mechanical property, thermal stability and the like is realized.

The invention belongs to the field of liquid crystal polyarylester synthesis, and particularly relates to a liquid crystal polyarylester synthesis catalyst screening method, which comprises: (a) respectively carrying out molecular modeling and structure optimization on a candidate catalyst and a reactant in a liquid crystal polyarylester synthesis reaction; (b) carrying out electronic structure analysis through the optimized structure, determining the number of active sites of the candidate catalyst, and preliminarily predicting the activity of the catalyst; (c) respectively constructing a micro-scale catalyst-reactant interaction model and a mesoscale catalyst-reactant interaction model by the catalyst structure and the reaction active site, and calculating interaction energy under the two scales; and (d) based on the interaction energy result of the multi-scale simulation, screening out a candidate catalyst with the interaction energy absolute value greater than or equal to a set threshold value as a high-activity catalyst. According to the screening method, the experimental screening steps of the liquid crystal polyarylester synthesis catalyst are simplified, and the raw material cost and the time cost are greatly saved.

The invention discloses a liquid crystal display filtering and light transmission performance monitoring system and a monitoring method thereof, and relates to the technical field of liquid crystal displays. An ambient light real-time monitoring module; a dual-optical-path differential measurement module; a signal processing and intelligent compensation module; a polarizer dynamic adjustment module; a data storage and analysis module; light intensity fluctuation data are collected in real time through an ambient light real-time monitoring module, reference light and transmission light are synchronously collected through a double-light-path differential measurement module, a signal processing and intelligent compensation module calls a self-adaptive algorithm library, compensation coefficients are calculated in combination with ambient light spectrum data, and a polaroid adjusting instruction is generated. And then an adjusting instruction is sent to the polaroid dynamic adjusting module through the CAN bus, the polaroid dynamic adjusting module feeds back an actual thickness value in real time after adjustment is completed, closed-loop control is formed, and through real-time compensation of ambient light and dual-light-path differential measurement, the influence of a station LED lamp and natural light is eliminated, and the monitoring precision of light filtering and light transmission performance is improved.

The invention discloses a water-in-oil emulsion, a preparation method, application, a membrane and a cosmetic product containing the same. The water-in-oil emulsion is prepared from the following components in parts by weight: 0.25 to 50.00 parts of water phase, 0.45 to 80.00 parts of oil phase, 0.025 to 5.00 parts of emulsifier, 1 part of sterol and / or sterol derivative, 0.01 to 30.0 parts of powder and 0 to 3 parts of polymer. The water-in-oil emulsion disclosed by the invention can form a liquid crystal structure which is regularly and orderly arranged in space according to a certain direction, has low film forming continuity, hydrophobicity, flexibility of a wax film and excellent air permeability, and also has certain migration resistance of a high-molecular polymer film, but the brittleness is improved. In addition, the brittleness of a layer of uniform and continuous three-dimensional network structure film formed on the skin by the polymer can be improved, and the flexibility and uniformity are improved.

The invention provides an embedded image enhancement method and system for a large-target-surface image sensor. According to the method, temperature gradient distribution and environment humidity data of a large-target-surface image sensor are collected, and an environment parameter matrix and a temperature noise mapping model are constructed in an associated mode; and correcting optical distortion of the incident light signal by using the liquid crystal modulator array, and outputting an original image. Then through a double-path module, a main path extracts noise features, and an auxiliary path separates color shift features caused by humidity; and verifying the physical consistency of the characteristics based on a thermodynamic equation and screening effective data. And finally, dynamically optimizing the image contrast, the dynamic range and the target details by the embedded processor, and outputting an enhanced image. Through environmental parameter modeling, dual-path feature separation and physical verification, temperature and humidity interference is effectively suppressed, and detail enhancement and color fidelity of the large-target-surface image sensor are improved.

The invention discloses a liquid crystal display brightness adjusting system and method based on ambient light perception, and the system comprises a high-precision ambient light sensor which obtains the ambient light illuminance and color temperature data in real time; the analog-to-digital converter is used for converting the analog optical signal into a digital signal; an embedded microcontroller; the temperature sensor is tightly attached to the liquid crystal panel backlight unit; and the control input end of the liquid crystal driving chip is connected with the driving signal output end of the embedded microcontroller through a serial peripheral interface bus. The technical normal form of a liquid crystal display dimming system is fundamentally reconstructed: in a physical layer, photoelectric signals and human eye spectral response offset are corrected through a spectral separation mechanism, a carrier recombination effect is inhibited based on a thermodynamic equation, and the physical authenticity of brightness output is ensured; in a control layer, a motion state compensation model and a spatial topology perception algorithm are constructed, and brightness space-time consistency control in a dynamic scene is realized.

A hair straightening brush with a thin film transistor-liquid crystal display (TFT-LCD) includes a head part and a handheld part. The head part includes a first housing, metal heat-conducting teeth, and an electric heating component. The handheld part includes a second housing, and a main control unit. The electric heating component is electrically connected to the main control unit. A display module is further disposed in the second housing, is provided with a display (TFT-LCD), and is electrically connected to the display. The display module includes a driver circuit and a signal control module, and is configured to generate timing signals for controlling row and column drivers of the display. The driver circuit is configured to: receive the timing signals for controlling the row and column drivers, convert the timing signals into row and column driver analog voltages, output the analog voltages to the display, and control liquid crystal alignment of the display.