23793results about "Static indicating devices" patented technology

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.

Embodiments of the invention provide an active pen-stylus that emulates a paper feeling for users of the active pen-stylus. The active pen-stylus comprises a writing shaft that receives physical forces arising from use of the pen-stylus by a user. The active pen-stylus also includes a force sensor that receives forces from the writing shaft, the force sensor configured to convert received forces into an electronic signal. A writing spring receives forces from the force sensor and reflects back to the user a reactionary force that emulates a paper feeling. The writing spring compresses and undergoes geometric deflection in creating the reactionary force that emulates the paper feeling. The geometric deflection produced by the writing spring arises from deformation of the writing spring by the received forces.

The application discloses a pixel driving circuit, a display panel and a display device. The pixel driving circuit comprises a first pixel driving unit, a second pixel driving unit and a third pixel driving unit. The first pixel driving unit comprises a first driving transistor and a first light emitting element. The first driving transistor has a first threshold value adjustment gate and receives a first adjustment signal. The second pixel driving unit comprises a second driving transistor and a second light emitting element. The second driving transistor has a second threshold value adjustment gate and receives a second adjustment signal. The light emitting colors of the first light emitting element and the second light emitting element are different from each other. When the first light emitting element and the second light emitting element display a target gray scale, the voltage values of the first adjustment signal and the second adjustment signal are different.

The invention relates to an LED display device based on vertical stacking and a preparation method thereof, the display device comprises a driving backboard and a mother pixel, the mother pixel comprises a plurality of sub-pixels, one of a first type of electrode contact and a second type of electrode contact on the driving backboard is a common-pole contact, and the other one is a non-common-pole contact; the electric connectors comprise common-pole conductive parts and non-common-pole conductive parts, the non-common-pole conductive parts are configured to be electrically connected to the first ends of the corresponding sub-pixels and electrically connected with the corresponding non-common-pole contacts, and the common-pole conductive parts are configured to be electrically connected to the second ends of the sub-pixels and electrically connected with the common-pole contacts to form a common-pole structure; each of the copolar conductive part and the non-copolar conductive part comprises an interconnection conductive part, the interconnection conductive parts are located in the corresponding pixel layers, at least one interconnection conductive part comprises a core body, the core body is a compound semiconductor, and the core body is located in the first inner fence. The invention further discloses a preparation method. The production efficiency and quality of the LED display device can be improved.

The invention discloses a display panel and a driving method thereof, the display panel comprises a plurality of first switches and a plurality of second switches, N columns of pixels are arranged in a first display area, and M columns of pixels are arranged in a second display area; the first scanning line is connected with N columns of pixels in the first display area and M columns of pixels in the second display area, the second scanning line is connected with the N columns of pixels in the first display area, and each first switch is connected with two data lines corresponding to sub-pixels with the same color in the first display area and the second display area; each second switch is connected with a data driving chip and a data line corresponding to a pixel in the first display area; wherein N and M are natural numbers greater than or equal to 2. The two data lines corresponding to the sub-pixels with the same color in the first display area and the second display area respectively receive the same data signal or different data signals to realize display in different display modes by switching on or switching off the first switch and the second switch, so that insufficient charging under a high refresh rate is improved.

The invention discloses a cholesteric liquid crystal display driving method and a cholesteric liquid crystal display driving device for realizing dynamic video display, and belongs to the technical field of display. The method comprises the following steps: firstly, controlling a grid electrode and a source electrode driver to cooperatively work, and resetting a full-screen liquid crystal to a vertical arrangement state as a display reference; then applying a specific voltage signal to each pixel according to the current frame image data, so that the pixels are selectively kept in a vertical arrangement state or converted into a plane arrangement state to display a target image; then common electrode voltage polarity inversion is carried out, reverse voltage is applied for compensation, and finally the process is cycled to achieve image updating. The corresponding device comprises a display panel, a gate driver, a source driver and a time schedule controller for executing the method. According to the method and device, the refresh rate limitation of traditional cholesteric liquid crystal bistable switching is broken through, high-speed dynamic video display is achieved, meanwhile, the display reliability is effectively improved through polarity compensation, the service life is effectively prolonged through polarity compensation, and low power consumption and high compatibility are achieved.

A system and method for using augmented reality device for use during a surgical procedure are described. A system may include an augmented reality device to present a virtual indication, such as a virtual indication of a surgical instrument, a force vector, a direction, or the like. The augmented reality device may present a virtual aspect of a procedure, such as a virtual animation of a step of a procedure. The augmented reality device may present a virtual object, indication, aspect, etc., within a surgical field while permitting the surgical field or aspects of the surgical field to be viewed through the augmented reality display (e.g., presenting virtual objects mixed with real objects).

The invention relates to the technical field of display screens, aims to solve the problem that dynamic influence of environmental parameters on optical performance is not fully considered in calibration of a standard screen in the prior art, and provides a method and a system for improving the stability of the standard screen. The method comprises the following steps: controlling a standard screen to display a corresponding test pattern according to a preset measurement point layout; controlling an optical measurement instrument to measure a standard screen according to a preset sampling frequency to obtain optical measurement parameters, and obtaining physical parameters of the standard screen at the same time; compensating the optical measurement parameters according to a pre-constructed environmental parameter influence model and environmental parameters during optical measurement; constructing a physical optical parameter correlation model according to the compensated optical measurement parameters and physical parameters; and inputting real-time physical parameters of a standard screen into the physical optical parameter correlation model to obtain optical deviation prediction parameters, and dynamically correcting the standard screen. According to the invention, the stability of the standard screen in practical application can be obviously improved.

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.

A semantic sensing analysis system comprising a processor, a memory and at least one sensing element having a plurality of stored semantic routes and / or semantic rules wherein the processor is configured to use semantic factorization to apply a quantifiable factor or indicator based on semantic inference or analysis which is inferred based on at least one of the stored semantic routes and / or semantic rules to cause the system to perform semantic augmentation towards a user in relation with an inferred semantic identity.

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.

A display device according to one or more embodiments of the present disclosure includes: a display panel including a plurality of pixels; and a panel driver configured to drive the display panel, wherein each of the pixels includes: a first light emitting element having a first viewing angle; a second light emitting element having a second viewing angle; a pixel circuit configured to generate a driving current; a first transistor configured to provide the driving current to the first light emitting element in response to a first select signal; and a second transistor configured to provide the driving current to the second light emitting element in response to a second select signal, and wherein, in a mode switching frame period between a first mode and a second mode, the panel driver is configured to sequentially provide the first and second select signals to the pixels on a row-by-row basis.

The invention provides a display device and a driving chip of a display panel. The display device comprises the display panel and the driving chip. The driving chip comprises a first comparator and a second comparator; the driving chip is used for dividing the output channels corresponding to the at least two data lines into a first channel with positive polarity and a second channel with negative polarity; a first comparator for comparing the first voltage with a first reference voltage to output a first level; the second comparator is used for comparing the second voltage with a second reference voltage and outputting a second level; and the driving chip is also used for continuously monitoring the first level and the second level so as to detect whether a short circuit between the data lines occurs in the display panel or not. The data line is divided into the positive and negative polarity channels through the driving chip, the comparator is used for comparing the channel voltage with the reference voltage, the level change is monitored to detect the short circuit, an amplifier and a complex switch assembly do not need to be additionally arranged, the circuit structure is simplified, and the manufacturing cost is reduced.

The invention relates to a light sensation self-adaption and white balance cooperative adjustment method and device for an LED display screen, and the method comprises the steps: collecting the illumination value of current ambient light and the spectral distribution of the ambient light, and calculating the color temperature value of the ambient light; according to the color temperature value, inquiring a pre-stored color temperature-gain parameter corresponding relation library to determine a corresponding white balance gain parameter; according to the illumination value, a backlight brightness adjustment amount is calculated through a pre-constructed logarithm compensation model; associating and binding the white balance gain parameter and the backlight brightness adjustment amount, and outputting the white balance gain parameter and the backlight brightness adjustment amount to a pulse width modulation signal generation unit and a digital-to-analog converter through a microcontroller; and outputting the white balance gain parameter to a digital-to-analog converter, outputting the backlight brightness adjustment amount to a pulse width modulation signal generation unit, generating a synchronous adjustment signal to drive an LED display unit, and carrying out cooperative adjustment of backlight brightness and white balance so as to achieve the purpose of unified regulation and control of visual comfort and color rendition authenticity.

The invention relates to a color electronic paper energy-saving driving design method and system based on optimized square wave driving, and belongs to the technical field of electronic paper display. The method comprises the following steps: firstly, based on a displacement time relation model of charged particles in the color electronic paper microcapsule, determining an optimal driving voltage interval of the particles, and generating a square wave driving waveform library; secondly, the environment temperature is monitored in real time, and square wave driving waveform parameters are dynamically adjusted; thirdly, analyzing statistical characteristics of the input image, dividing content complexity and distributing driving voltage grades; and finally, identifying an image change area through a frame difference algorithm, and performing local refreshing or global refreshing to realize image display. According to the color electronic paper energy-saving driving design method and system based on optimized square wave driving, an efficient and cooperative temperature compensation mechanism and a dynamic voltage adjusting strategy are combined, the display quality is maintained, meanwhile, the driving energy consumption of the color electronic paper is effectively reduced, and it is ensured that the color electronic paper is kept effective and stable in various temperature environments.

The invention relates to an LED display screen environment interaction system based on multi-mode perception and a control method. The system comprises a multi-mode sensing module used for acquiring environment information of the LED display screen; the user position distribution comprises a user distribution hot area map, an area target vector and an interference index; the environment fusion sensing module is used for performing fusion reasoning according to the environment illumination intensity, the environment temperature state, the regional target vector and the interference index to obtain an environment state type; the display strategy control module is used for generating a dynamic control parameter based on the environment state type in combination with the user distribution hot area graph; the LED display screen driving module is used for obtaining an adjusting parameter and an adjusting instruction according to the dynamic control parameter; the adjustment parameters comprise an RGB current parameter, a brightness parameter and a color temperature parameter. By adopting the system, the dynamic change of the environment and the crowd is taken as a driving source, perception, analysis and execution driving are integrated, and the energy use efficiency is improved while the visual experience of a user is improved.

The invention relates to an LED display device based on vertical stacking and a preparation method thereof. The display device comprises a driving backboard and a mother pixel, the mother pixel comprises a plurality of sub-pixels, one of a first type of electrode contact and a second type of electrode contact on the driving backboard is a common-pole contact, and the other one of the first type of electrode contact and the second type of electrode contact on the driving backboard is a non-common-pole contact; the non-common-pole conductive pieces are configured to be electrically connected to the first ends of the corresponding sub-pixels and electrically connected with the corresponding non-common-pole contacts, and the common-pole conductive pieces are configured to be electrically connected to the second ends of the sub-pixels and electrically connected with the common-pole contacts to form a common-pole structure; each of the copolar conductive part and the non-copolar conductive part comprises at least one interconnection conductive part, a compound semiconductor region is arranged in the pixel layer where the interconnection conductive part is located, a backfill hole is formed in the compound semiconductor region, and the backfill hole is filled with the interconnection conductive part. The invention further discloses a preparation method. The stability and reliability of the LED display device can be improved, and the LED display device is more convenient to process.

The invention discloses a backlight control method, display equipment and a computer readable storage medium, and relates to the technical field of liquid crystal display, the backlight control method is applied to a backlight system, the backlight system comprises an LED backlight source, the LED backlight source comprises a three-primary-color light-emitting source and a white light-emitting source, and the method comprises the steps of obtaining a to-be-displayed target image, determining a three-primary-color backlight gray value of the three-primary-color light emitting source based on the target image; a white backlight gray value is determined based on the three-primary-color backlight gray value, and the white backlight gray value is in positive correlation with the three-primary-color backlight gray value; and driving the three-primary-color light-emitting source to emit light based on the three-primary-color backlight gray value, and driving the white light-emitting source to emit light based on the white light-emitting source, so that the LED backlight source provides backlight. The light emitting efficiency of the backlight source is improved, and the brightness and the color gamut are considered on the basis of low energy consumption.

Embodiments of the present application relate to the technical field of display, and provide a display panel and a display device, for use in improving the wide-angle anti-peeping effect of the display panel. The display panel comprises: a substrate; a plurality of light-emitting elements located on one side of the substrate, wherein each of the light-emitting elements comprises a first light-emitting unit and a second light-emitting unit; a first light blocking layer located on the side of the first light-emitting unit distant from the substrate, wherein the first light blocking layer comprises a first opening; and a second light blocking layer located on the side of the first light blocking layer distant from the substrate, wherein the second light blocking layer comprises a second opening. In a direction perpendicular to the plane where the substrate is located, both the first opening and the second opening at least partially overlap the first light-emitting unit; and the area of the first opening is greater than that of the second opening, and the orthographic projection of the second light blocking layer on the plane where the substrate is located at least partially covers the edge of the first opening.

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.

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 an LED display device based on vertical stacking and a preparation method thereof, the display device is provided with a driving back plate and a mother pixel, the mother pixel comprises a plurality of sub-pixels, the driving back plate comprises a first type of electrode contacts and a second type of electrode contacts, and electric connecting pieces comprise copolar conductive pieces and non-copolar conductive pieces. Each non-copolar conductive piece corresponds to a different sub-pixel; one of the first type of electrode contacts and the second type of electrode contacts is a common-pole contact, and the other one is a non-common-pole contact; the driving backboard comprises a plurality of non-common-pole contacts, the plurality of non-common-pole contacts are divided into at least two ring groups, and each ring group corresponds to different sub-pixels; the non-co-polar conductive members are configured to be electrically connected to the non-co-polar contacts in the ring groups of the respective corresponding sub-pixels, and the co-polar conductive members are configured to be electrically connected to the co-polar contacts to form a co-polar structure. The invention further discloses a preparation method. According to the invention, the problem of overhigh local current density in the display device is effectively improved, and the reliability and stability of the device are effectively improved.

The invention provides a driving method of a display panel, a driving circuit and a display device.In the driving method of the display panel, reference voltage and environment temperature form a first mapping table, target electrical parameters of the display panel and the environment temperature form a second mapping table, and a temperature sensing module is adopted to detect the environment temperature of the display panel; the method comprises the following steps: acquiring a corresponding detection voltage, comparing the detection voltage with a changing reference voltage, acquiring a target reference voltage according to an overturning state of a level signal obtained by comparison, and acquiring a current environment temperature according to the target reference voltage; various target electrical parameters of the display panel are determined according to the environment temperature and the second mapping table, parameter adjustment of the display panel is carried out, linkage adjustment of the multiple different electrical parameters is achieved, it is guaranteed that the display panel obtains different voltage setting and driving voltages at the current environment temperature, the effectiveness of low-temperature compensation is improved, and the user experience is improved. The deflection consistency of the liquid crystal is realized, and the display effect is improved.

The invention belongs to the technical field of display driving, and particularly relates to a gate driving circuit and a display panel, the gate driving circuit comprises N cascaded GOA circuit units, and the nth GOA circuit unit comprises a control voltage maintaining module used for maintaining the control voltage of the n + 1th GOA circuit unit under the action of the pre-charging voltage on the control voltage end of the (n + 1) th GOA circuit unit, maintaining the control voltage end of the nth GOA circuit unit at a first target voltage; the output module is used for outputting a gate driving signal under the action of a first target voltage on a control voltage end and a clock signal output by a clock signal end; the stage transmission module is used for outputting a stage transmission signal for pre-charging the control voltage end of the (n + i) th stage GOA circuit unit under the action of a target voltage on the control voltage end and a clock signal output by the clock signal end; the problem that the potential of the Q point is unstable due to leakage current is solved, the falling edge time of the gate driving signal can be greatly shortened, and the display effect of a picture is improved.

Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects 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.

A display device includes a pixel emitting light based on input image data, an age data calculator configured to generate age data of a light emitting element included in the pixel in consideration of a power voltage supplied to the pixel, and a compensator configured to output age compensation data by determining a grayscale compensation value corresponding to an input grayscale of the input image data, based on the age data, and applying the grayscale compensation value to the input image data.

The invention provides an LED display screen interaction method and system supporting voice interaction, and the method comprises the steps: carrying out the voice feature extraction processing through obtaining a continuous voice data stream sent by a user, and obtaining an acoustic feature sequence and a semantic association feature set of a voice segment; and calling a pre-trained voice semantic understanding model to perform joint semantic analysis processing on the acoustic feature sequence and the semantic association feature set, generating a semantic understanding result of the voice segment, and determining a user interaction intention type corresponding to the continuous voice data stream and key information positioning features of the user interaction intention in the voice content based on the semantic understanding result. And generating an LED display control instruction containing an interaction content identifier based on the user interaction intention type and the key information positioning feature, and sending the LED display control instruction to the target LED display screen to execute an interaction display operation. The real intention and key information in the continuous voice of the user can be accurately understood, the accuracy and naturalness of voice interaction between the LED display screen and the user are remarkably improved, and the interaction experience of the user is effectively improved.

The present invention provides a display device and a method for manufacturing the display device. A metal layer is formed on a highly light-transmissive substrate; a resist mask having an opening pattern is formed on the metal layer; exposed portions of the metal layer is etched away in this state to form openings; then the resist mask is removed; and a surface of the metal layer and an inner side wall of each of the openings are oxidized to form a metal oxide layer. Thus, a front surface and a rear surface of the aperture plate are caused to have different reflectances. The oxide layer is formed at the same time as when the resist mask is ashed to remove resist.

The invention discloses a self-powered cholesteric phase display screen display driving system and a control method thereof, and belongs to the technical field of display. The system comprises a low-light energy acquisition module, an energy management module, a control module and a display driving module. The control module controls the turn-off and turn-on of the voltage output function of the energy management module by outputting a sleep / wake-up signal, so that the system is charged by using ambient light during sleep, and image refreshing is quickly completed and the system enters sleep again during wake-up. By setting a balance point of wake-up time and energy consumption, it is ensured that refreshing energy consumption is lower than charging energy, so that energy self-balance and continuous work of the system in a luminous environment are achieved, and external charging is not needed. The problems that an existing cholesteric phase display needs frequent external charging during continuous work and a traditional light energy power supply scheme is low in efficiency in the low-light environment are mainly solved, self-powered continuous operation of the cholesteric phase display in the indoor and outdoor low-light environment is achieved, and use convenience is improved.

The invention provides a pixel dynamic calibration method and device for a display, equipment and a storage medium. The method comprises the following steps: acquiring display parameters and a calibration image of the display; performing visual semantic analysis on the calibration image to generate a partition guidance mask, and marking a plurality of areas with different visual fidelity in the image by the partition guidance mask; generating a group of parallel region tone mapping curves for the plurality of regions based on the display parameters and the partition guide mask; performing synchronous processing on a corresponding region of the calibration image by using the region tone mapping curve to generate a partition mapping result, and fusing the partition mapping result into a correction image; generating a strategy execution record based on the partition guidance mask and the regional tone mapping curve; binding the strategy execution record with the content characteristics of the calibration image, and storing as a scene calibration strategy file; and when a new image frame is processed, calling the matched scene calibration strategy file for processing.