39335results about "Static indicating devices" patented technology

The invention discloses an LCD display screen display fault judgment method, and relates to the related technical field of LCD display screen detection. Comprising the steps of synchronous acquisition and preprocessing of multi-source signals, feature extraction, establishment of a fault judgment model, generation of a dynamic test mode, dynamic generation of a targeted test image according to a preliminary detection result to excite a potential fault, iterative optimization of a test sequence by a Q-learning algorithm, and fault diagnosis. The invention also discloses a system for judging the display fault of the LCD screen. The system comprises a multi-source data acquisition module, a central processing unit, a memory and a user interface. Various data including display data, driving voltage / current monitoring data, temperature distribution, environment parameters and the like are synchronously collected through the optical sensor, the electric signal probe, the thermal imaging module and the environment sensor, all-directional information of the LCD display screen in the operation process can be obtained, and limitation and misjudgment possibly caused by a single data source are avoided.

The invention relates to the field of display screen pixel calibration, in particular to a pixel calibration method and system of a high-precision liquid crystal display screen. The method comprises the following steps: acquiring a real-time playing animation image of a high-precision liquid crystal display screen based on an internal sensor of the display screen; carrying out image scene distortion feature mining on the real-time playing animation image so as to obtain a comprehensive scene distortion feature; performing frame-by-frame pixel optical tracking on the real-time playing animation image, and performing frame-by-frame rolling offset vector calculation so as to construct a pixel point time sequence offset trajectory diagram; carrying out regional dynamic optical flow estimation on the pixel point time sequence offset trajectory diagram, carrying out dynamic trajectory distortion modeling based on comprehensive scene distortion characteristics, and constructing a pixel point offset trajectory distortion model; and carrying out dynamic color change perception on the pixel point offset track distortion model so as to generate a self-adaptive pixel point track offset compensation value. According to the invention, efficient and accurate pixel calibration is realized, and the dynamic visual effect is improved.

The invention provides an adjustable spectrum-based liquid crystal display system and a control method thereof, relates to the technical field of display systems, and aims to overcome the limitations of poor environmental adaptability, easiness in causing visual fatigue, single user experience and the like of an existing display. The system creatively integrates a liquid crystal panel, a high-precision multi-main-color Micro-LED backlight, a pixel inner sensing array, an external multi-mode sensing module, a dynamic addressable micro-optical array, a dynamic polarization modulation layer and an optional transparent energy collection layer. The intelligent controller carries out fusion processing on the real-time biological state, environment information and application context data of the user obtained by the multi-source sensor, and carries out accurate state evaluation and future trend prediction. And determining an optimal space-time-direction-spectrum-polarized light field output characteristic and an intelligent energy management strategy through a multi-objective optimization decision engine, and driving each optical regulation and control component to execute in real time. The visual comfort and health level are remarkably improved, and the information fidelity and task performance in a complex environment are ensured.

The invention provides a display module and electronic equipment. The display module comprises a display driving integrated circuit and a display panel, the display panel includes: an array substrate; the plurality of isolation structures are located on one side of the array substrate, and an isolation opening is defined by the isolation structures; the isolation structure has conductivity; the plurality of isolation structures are divided into at least two groups, and the isolation structures in different groups are electrically isolated from each other; the display driving integrated circuit is respectively connected with each group of isolation structures, and the display driving integrated circuit is used for providing an independent common voltage for each group of isolation structures according to a received display brightness value instruction. According to the embodiment of the invention, under the condition that the isolation structure is arranged to realize the independence of the common electrode of each sub-pixel, the independent common voltage is provided for different groups of sub-pixels through the display driving integrated circuit, so that the common voltage can be configured more flexibly for the sub-pixels made of different materials, and the overall energy consumption of the display module is reduced.

The embodiment of the invention provides a pixel circuit and a display module, and relates to the field of display panels. The pixel circuit comprises a driving module which is electrically connected with a first electrode of a light-emitting element and is used for driving the light-emitting element to emit light; the first end of the shunt branch is electrically connected with the first electrode of the light-emitting element, the second end of the shunt branch is electrically connected with a first reference voltage signal line, and the shunt branch is used for transmitting part of driving current provided by the driving module to the first reference voltage signal line. According to the pixel circuit and the display module provided by the embodiment of the invention, the problem that the display brightness of a display panel is not uniform can be fully improved, so that the display effect and the use performance of the display panel are effectively improved.

The invention discloses a color correction method and system for a liquid crystal panel, and particularly relates to the technical field of liquid crystal panels. The method comprises the following steps: firstly, acquiring color reference data of a panel, establishing a reference model, then detecting a color shift condition in real time through a color sensor, predicting a color shift trend and calculating a color compensation coefficient based on a machine learning model, dynamically adjusting a driving signal of the liquid crystal panel, optimizing backlight brightness, RGB sub-pixel compensation and a Gamma curve according to the coefficient, and finally adjusting the color shift condition of the liquid crystal panel. For the area with serious color drift, a local area correction strategy is adopted, partition-level compensation is executed, the color uniformity of the whole screen is improved, the limitation of traditional static color correction is broken through, intelligent and self-adaptive dynamic color correction is achieved, the color consistency and long-term use stability of the liquid crystal panel are effectively improved, and the color uniformity of the liquid crystal panel is improved. The method is particularly suitable for high-refresh-rate display equipment, the problem of unnatural color transition is solved, and the visual experience of a user is remarkably improved.

The invention relates to the technical field of organic display data processing, in particular to an organic display interface multichannel signal modulation method, which comprises the following steps of: generating a standardized data set through gamma correction and gamut mapping, and inputting the standardized data set into time sequence, amplitude and frequency sub-models deployed in a federal learning framework; and respectively analyzing the pulse width-refresh rate relevance, the driving voltage-brightness nonlinear relationship and the conduction period-mobility dynamic response, generating an optimized weight coefficient, and fusing the optimized weight coefficient into a boundary constraint condition of a cross-sub-model. A migration rate parameter index, amplitude gradient calculation and duty ratio correction service of chain calling is constructed based on a service grid, a reinforcement learning dynamic routing strategy is combined to avoid resource competition nodes, and brightness error characteristics are periodically fed back to reversely optimize gradient updating. According to the method, the conflict between time sequence deviation accumulation and local optimum is effectively suppressed, the color gradation continuity, the dynamic range and the edge sharpness are improved, and efficient cooperative modulation of multi-channel signals is realized.

The invention discloses a display panel, a driving method and device thereof and a computer readable storage medium, and belongs to the technical field of display. The driving method of the display panel comprises the following steps: acquiring the number of carry points of a single reference sample in a preset frame rate control algorithm; configuring a jitter pattern according to the number of the carry points, wherein the jitter pattern is used for keeping the same number of times that each carry point presents positive polarity and negative polarity in cycle display of a specified frame number; and driving the display panel based on the jitter pattern and a preset frame rate control algorithm. According to the method, the preset frame rate algorithm is optimized by configuring the jitter pattern capable of keeping the number of times that each carry point presents the positive polarity and the negative polarity in the cycle display of the specified frame number, and the problem that the display effect is poor due to the fact that the jitter scheme of the preset frame rate algorithm is poor can be avoided.

The invention relates to the field of liquid crystal display, and discloses a liquid crystal display screen dynamic contrast optimization method and system, and the method comprises the following steps: collecting ambient light intensity and backlight module temperature parameters in real time, and combining with image content entropy analysis to dynamically generate a non-uniform backlight partition grid; a brightness diffusion physical model is constructed based on hardware parameters such as the refractive index of the light guide plate and the LED spacing, and the optimal brightness of each partition is solved by adopting a temperature self-adaptive improved particle swarm algorithm; driving voltage is generated through piecewise nonlinear gamma mapping and inverse function iterative calculation, and the driving voltage is adapted to the nonlinear response characteristics of the backlight module; a hardware accelerator is used for executing a diffusion equation and optimization calculation in parallel, and model parameters are dynamically adjusted in combination with feedback of an optical sensor, so that a closed-loop control link is formed. According to the method, the contrast performance and the dynamic scene adaptability of the display screen are comprehensively improved through dynamic partition adaptive to the environment, an optimization algorithm driven by a physical model and real-time processing accelerated by hardware.

The invention discloses an HUD (Head Up Display) backlight display system and method, and particularly relates to the technical field of HUD backlight display, a light environment in a sight range of a driver is monitored in real time through a micro light sensor array, and a real-time environment display light distribution diagram is obtained; based on a prediction model constructed by a recurrent neural network and a long-short term memory network, historical driving scene data, a real-time vehicle state and front ambient light changes are fused, future light intensity distribution is accurately predicted, a current light intensity value of a fixation area is extracted from an environment display light distribution diagram, and the prediction light intensity distribution of a next prediction step length is combined, so that a prediction result is obtained. Calculating the target backlight brightness of the fixation area at the next prediction step length; performing global pre-adjustment on the backlight display system according to the backlight pre-adjustment parameters; light intensity prediction and fixation area optimization are realized, and the problem that the display brightness of a traditional HUD system is dynamically mismatched with ambient light is solved.

The invention relates to the technical field of display screens, and discloses an anti-dazzle Micro LED display screen and an anti-dazzle adjusting method and system.The method comprises the steps that multi-dimensional spectral data collection is conducted on incident light, and a multi-dimensional spectral feature matrix is obtained; performing space-time light field reconstruction of tensor decomposition and spherical harmonic function expansion operation on the multi-dimensional spectral feature matrix to obtain four-dimensional light field feature data; inputting the four-dimensional light field feature data into a deep learning prediction network for dynamic modeling to obtain light field distribution prediction data; performing anti-dazzle display parameter optimization based on the light field distribution prediction data to obtain a display parameter target value; and executing a hierarchical control strategy according to the display parameter target value, and generating a multi-parameter cooperative control signal for light transmittance adjustment, polarization state modulation and microstructure actuation, the method realizes accurate conversion from the light field characteristics to the control parameters, ensures the stability and continuity of the display effect, effectively reduces the system energy consumption, and improves the operation efficiency.

The invention relates to the technical field of display control, in particular to an LED screen display control method and system and an LED screen. The method comprises the following steps: acquiring multi-modal stage sensing data and LED screen real-time display data, and performing stage performance environment perception according to the multi-modal stage sensing data and the LED screen real-time display data to obtain stage environment perception data; performing flow scene coding prediction based on the stage environment perception data to obtain renderable scene factors; obtaining display content data of the LED screen, and analyzing a pre-output picture of the LED screen to obtain visual pre-output data of the LED screen; performing multi-modal stage dynamic characteristic reasoning according to the LED screen visual pre-output data and the renderable scene factors to obtain a stage visual dynamic output structure diagram; and performing real-time heterogeneous driving rendering on the stage visual dynamic output structure diagram to obtain a millisecond LED rendering diagram block data set. According to the invention, the display response precision and the picture adaptation capability of the LED screen can be improved.

The invention relates to the technical field of display, and particularly discloses a dynamic ambient light adaptive OLED display optimization method and system, and the method comprises the steps: obtaining an ambient light time sequence data set of an environment where an OLED display screen is located, and synchronously obtaining real-time display parameters and historical brightness adjustment data of the display screen; acquiring ambient light sensing features according to the ambient light time sequence data set; obtaining photo-thermal structure coverage area data of the OLED display screen according to the real-time display parameters; and acquiring preliminary optimization parameters according to the ambient light sensing characteristics and the photo-thermal structure coverage area data. According to the invention, illumination intensity, spectrum drift and contrast change are captured in real time in combination with ambient light perception characteristics, the one-sidedness of adjustment only according to brightness traditionally is solved, reflection can be reduced through photothermal structure deformation under strong light, brightness can be improved to offset interference, and human visual characteristics can be matched under weak light. And the display definition and the visual comfort in different environments are effectively improved.

Various implementations disclosed herein include devices, systems, and methods that present content items (e.g., movies, TV shows, home-made videos, etc.) on electronic devices such as HMDs. Some implementations adjust what is being displayed by the electronic devices to mitigate optical module-based artifacts (e.g., ghosting). For example, in an HMD with a catadioptric lens, a mirror layer may leak some light to produce ghosting artifacts that may be mitigated by adjusting brightness, dynamic range, contrast, light-spill, color, etc. Some implementations utilize adjustments that are based on content item awareness (e.g., adjustments based on the peak brightness of the scene in a movie that is being displayed within an extended reality (XR) environment, etc.). Some implementations provide adjustments based on environment awareness (e.g., how dark is the surroundings or pass-through environment) and / or optical module modeling. The adjustments may change a particular content item and / or an environment in which it is presented.

The embodiment of the invention provides an optical system, intelligent head-mounted equipment and a zooming method of the optical system. The optical system is used for the intelligent head-mounted device, and the optical system comprises an imaging module, an eyeball tracking module and a processor. The imaging module comprises a zoom lens, and the eyeball tracking module is used for acquiring eyeball watching information; the processor is used for determining zoom information according to eyeball watching information provided by the eyeball tracking module and controlling the zoom lens to zoom according to the zoom information; wherein the zoom information comprises the thickness and the curvature radius of the zoom lens.

A display device includes: a display operable in a landscape mode and a portrait mode; a stand and including a power circuit configured to receive external power, a first battery, and a charging and discharging circuit configured to control charging and discharging of the first battery; and one or more processors configured to: control the charging and discharging circuit to charge the first battery using the external power, based on a user command for turning on the display being received, provide a portion of the external power to the display as first driving power, and control the charging and discharging circuit to provide another portion of the external power to the first battery as charging power, where the one or more processors are configured to provide output power of the first battery to the display as second driving power in a battery priority use mode.

The invention relates to the technical field of organic light-emitting display data processing, in particular to an adaptive adjustment method for active matrix organic light-emitting display. In combination with current stress parameter fluctuation captured by the programmable current sampling module and heat distribution data of the temperature sensor network, the dynamic aging model micro-service cluster is input for parameter coupling calculation, and time-varying degradation characteristic parameters are output; the containerized simulation micro-service constructs a virtual aging scene based on the parameters and generates a compensation coefficient matrix; according to the method, the problem of compensation deviation caused by the fact that a traditional static model cannot adapt to current stress, temperature bias and a material relaxation coupling effect is solved, dynamic balance of display brightness, color gamut and power consumption is achieved, and the service life of a display panel is prolonged.

A pixel circuit may include a first light-emitting element; a second light-emitting element; a driving element configured to drive the first and second light-emitting elements; a first switch element connected between the driving element and the first light-emitting element; a second switch element connected between the driving element and the second light-emitting element; and a compensation circuit including: a capacitor connected to a gate electrode of the driving element; a third switch element configured to apply a reference voltage to one electrode of the capacitor; a fourth switch element connected between the first light-emitting element and an initialization voltage line to which an initialization voltage is applied; and a fifth switch element connected to the second light-emitting element and the initialization voltage line. A display device is also disclosed.

Methods, apparatus, devices, and systems for displaying three-dimensional objects by individually diffracting different colors of light are provided. In one aspect, an optical device includes: a first optically diffractive component including a first diffractive structure configured to diffract a first color of light having a first incident angle at a first diffracted angle, a second optically diffractive component including a second diffractive structure configured to diffract a second color of light having a second incident angle at a second diffracted angle, a first reflective layer configured to totally reflect the first color of light having the first incident angle and transmit the second color of light, and a second reflective layer configured to totally reflect the second color of light having the second incident angle. The first reflective layer is between the first and second diffractive structures, and the second diffractive structure is between the first and second reflective layers.

This application provides a control method and an electronic device. In this application, when receiving an operation performed by the user for interface transfer, an electronic device like an in-vehicle terminal determines, by analyzing a specific intention of the operation, whether to perform cross-screen transfer or one-screen transfer, to provide a better intelligent interface display service for the user. For example, when it is determined that the intention is to perform the cross-screen transfer, based on an actual display situation before transfer of a first interface and / or an interface display situation on a second screen, an interface transferred from an original screen may be displayed on a target screen in an appropriate display type after the transfer.

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.

An eyepiece includes a planar waveguide having a front surface and a back surface. The eyepiece also includes a grating coupled to the back surface of the planar waveguide and configured to diffract a first portion of the light propagating in the planar waveguide out of a plane of the planar waveguide toward a first direction and to diffract a second portion of the light propagating in the planar waveguide out of the plane of the planar waveguide toward a second direction opposite to the first direction and a wavelength-selective reflector coupled to the front surface of the planar waveguide. The wavelength-selective reflector comprises a multilevel metasurface comprising a plurality of spaced apart protrusions having a pitch and formed of a first optically transmissive material and a second optically transmissive material disposed between the spaced apart protrusions.

The invention discloses a wiring auxiliary structure of a screen FPC end and a screen lightening detection process, the structure comprises an epitaxial bearing platform, a base, a wiring platform, a needle die, a pressing module, a jacking module and a beating and aligning assembly, the pressing module comprises a pressing die strip and a power device, the needle die and the wiring platform are in butt joint to form a stepped matching surface, and the needle die is also provided with an air leakage channel. On one hand, the FPC end is flattened on the basis of negative pressure adsorption force formed by the downward pressing die strip in combination with movement in the up-down and front-back directions, meanwhile, position calibration of the flattened FPC end is conducted on the basis of left-right patting, and under the matched pressing fit of a matching face and the screen FPC end, accurate butt joint of an interface and a needle die is achieved, the butt joint dislocation rate is reduced, and potential safety hazards are eliminated; and on the other hand, the air flow formed by lamination is discharged based on the air leakage channel, lamination hollowing is avoided, the butt joint stability of the interface and the needle mold is improved, the displacement rate of the interface and the needle mold is reduced, and therefore the accuracy rate of the screen lightening test is improved.

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.

A display apparatus includes a display panel, a driving controller, a gate driver, an emission driver and a data driver. The display panel includes a pixel including a driving switching element and a light emitting element. The driving controller is configured to determine a driving frequency varied according to input image data or a driving mode. The gate driver is configured to output a gate signal and a bias control signal to the pixel. The emission driver is configured to output an emission signal to the pixel. The data driver is configured to output a data voltage to the pixel. The bias control signal to apply a bias voltage to the driving switching element has a first width in a writing frame and a second width different from the first width in a holding frame.

The invention relates to the technical field of display, and discloses a halo suppression method based on edge compensation and a backlight system.The method comprises the steps that the brightness difference boundary between adjacent dimming areas is detected, and a halo risk area is determined; calculating brightness gradient distribution of the halo risk area; and generating a transition compensation area based on the brightness gradient distribution, and adjusting the brightness distribution of the backlight source at the boundary. A transition compensation area is generated by calculating brightness gradient distribution, backlight brightness distribution at the boundary can be adjusted, natural brightness transition is achieved, the edge halo effect caused by brightness difference of adjacent dimming areas is effectively eliminated, and image definition and contrast are remarkably improved.

A display device and its driving method are provided. The display device includes a display panel. The display panel includes pixel circuits arranged in multiple rows. Each pixel circuit includes a light-emitting control transistor and a driving transistor. The light-emitting control transistor is used to control a corresponding light-emitting element to enter a light-emitting stage; and the driving transistor is used to provide a driving current for the corresponding light-emitting element. A driving process of the display panel includes a first stage and a display stage. The first stage is located at least before or after the display stage. In the first stage, at least one of light-emitting control transistors and driving transistors in each row of pixel circuits is turned off. A duration of the first stage is t, and a data refresh frequency of the pixel circuits in the display stage is f, t≤1 / f.

A variable-wavelength light emitting diode (LED) is provided. The variable-wavelength LED comprises an n-doped portion, a p-doped portion, and a light-emitting region located between the n-doped portion and the p-doped portion. The light-emitting region comprises a light-emitting layer which emits light at a peak emission wavelength under electrical bias thereacross. The LED is configured to receive a power supply, and the peak emission wavelength of the LED is continuously controllable over an emission wavelength range of at least 40 nm by varying the power supply. A display device comprising this variable-wavelength LED, a method of controlling said variable-wavelength LED and a method of manufacturing a variable-wavelength LED are also provided.

The invention relates to the technical field of data processing of organic display panels, in particular to a dynamic compensation method for driving signals of an organic display panel, which comprises the following steps of: acquiring brightness data in parallel by a photoelectric sensor array in different regions, and synchronously acquiring threshold voltage offset and environment temperature parameters of a thin film transistor; and after noise filtering, inputting into an aging feature extraction module and storing in a historical database. In the feature extraction stage, convolution kernel aggregation threshold voltage data is utilized to generate a regional aging coefficient matrix, the weight of a convolution kernel is dynamically adjusted based on a lightweight neural network, and an aging feature model is optimized in combination with real-time temperature parameters. The real-time problem of pixel-level compensation in a high-resolution scene is solved, and the calculation load of an embedded system is reduced.

The present application provides a display panel and a display device. Pulse width modulation modules of a plurality of sub-pixels included in the same sub-pixel group receive the same frequency sweep signal, and pulse width modulation modules and the pulse amplitude modulation modules of the plurality of sub-pixels included in the same sub-pixel group receive the same light emission control signal. The start time when pixel driving circuits of at least two of the sub-pixel groups provide flow paths for corresponding driving currents according to corresponding light emission control signals is different.