52results about How to "Increase refresh rate" patented technology

The invention belongs to the technical field of display driving, and particularly relates to a display panel, a display driving method and a display device.The display panel comprises N rows of scanning lines, M columns of data lines and 2N rows * 2M columns of pixel circuits; each pixel circuit comprises a pixel unit and a control unit, and when the nth row of scanning line outputs a first scanning signal, a data signal on the mth row of data line controls any one of the control units in the (2m-1) th row and the (2n-1) th row and the control units in the (2m) th row and the (2n-1) th row to be switched on or switched on alternately in a time-sharing manner; when the nth scanning line outputs a second scanning signal, the data signal on the mth data line controls any one of the (2m-1) th and 2nth control units and the 2m and 2nth control units to be switched on or switched on alternately in a time-sharing manner; according to the display panel, the number of the scanning lines and the number of the data lines are reduced by at least half under the display condition of the same resolution, the power consumption and the cost of the panel are reduced, and the refresh rate and the aperture opening rate are improved.

The invention belongs to the technical field of display driving, and particularly relates to a display panel, a display driving method and a display device.The display panel comprises N rows of scanning lines, M columns of data lines and N rows * 2M columns of pixel circuits; each pixel circuit comprises a pixel unit and a control unit, the first control end of the control unit in the nth row is connected with the scanning line in the nth row, and the second control end of the control unit in the (2m-1) th column, the input end of the control unit in the (2m-1) th column, the second control end of the control unit in the (2m) th column and the input end of the control unit in the (2m) th column are all connected with the data line in the (m) th column; when the nth row of scanning line is opened, a data signal on the mth row of data line controls any one of the nth row of (2m-1) th row of control units and the nth row of (2m-1) th row of control units to be switched on or switched on alternately in a time-sharing manner; according to the display panel, the number of the data lines is reduced by half under the display condition of the same resolution, the power consumption and cost of the panel are reduced, and the refresh rate and the aperture opening rate are improved.

The invention discloses a multi-channel arbitrary regulation and control full-connection space photon Isin machine, and belongs to the field of photoelectric intelligent calculation. The photon Isin machine comprises a laser light source module, a modulation multiplexing module and a detection electric control module. The photon Isin machine provided by the invention realizes multichannel multiplexing of a spatial spin matrix based on a diffraction beam splitting element and polarization multiplexing, realizes arbitrary full-connection coupling weight loading through a matrix decomposition approach, and finally realizes the full-connection space photon Isin machine with arbitrary regulation and control. According to the spatial multiplexing working mode, on one hand, calculation acceleration of the Isin model in any coupling connection can be achieved in a matrix decomposition mode, on the other hand, the modulation rate of the modulator is not sacrificed, and the defect that the calculation speed is low due to time division multiplexing is overcome. Therefore, the full-connection space photon Isin machine with multi-channel arbitrary regulation and control has important practical value in the fields of traffic planning, resource allocation, financial prediction, circuit design and the like.

The invention discloses a display panel and a display device, and the display panel comprises a first region which comprises a plurality of rows of pixel circuits; the second area comprises a first start control line, a first driving circuit and a plurality of clock signal lines, the first start control line is electrically connected with the first driving circuit, and the first driving circuit comprises multiple stages of shift register units; in the shift register unit, a plurality of clock ends are electrically connected with a plurality of clock signal lines respectively, and N shift output ends are electrically connected with adjacent N rows of pixel circuits respectively; in a first working mode, a plurality of clock ends in the shift register unit receive different clock signals, so that N shift output ends output gate driving signals in a time-sharing manner; and in the second working mode, two clock ends in the shift register unit receive the same clock signal, so that the N shift output ends simultaneously output gate driving signals. In the invention, the display panel adopts the second working mode, so that the charging time of each row of pixel circuits can be prolonged, or the refresh rate can be improved.

A capacitor array sensor comprises a first flexible circuit layer, a flexible spacing layer, a second flexible circuit layer and a plurality of capacitors. Wherein the first flexible circuit layer 1, the flexible spacing layer 2 and the second flexible circuit layer 3 are sequentially stacked. The capacitor comprises a first electrode 411, a second electrode 412 and a reference electrode 413, the first electrode 411 and the second electrode 412 are adjacently arranged on the first flexible circuit layer 1, and the reference electrode 413 is arranged on the second flexible circuit layer 3. An overlapping region exists between the reference electrode 413 and at least one of the first electrode 411 and the second electrode 412, and the area of the overlapping region changes along with the change of the bending degree of the capacitance array sensor. The capacitor array sensor can be integrated in a dynamic bending detection device, a wearable article and a human body posture dynamic detection device, and the problems that the sensor is low in response speed, low in accuracy and reliability, high in cost, high in environmental sensitivity, poor in durability, small in measurable range, incapable of being flexibly configured according to a specific shape and the like in form measurement are solved.

The invention discloses a Micro-LED display gray scale control method and a display device, and relates to the technical field of Micro-LED display. Aiming at the problem that the existing Micro-LED display technology cannot realize instant light emitting, the invention provides a Micro-LED display gray scale control method, and the control method is a gray scale mixed control method combining PAM (Pulse-Amplitude Modulation) and PWM (Pulse-Width Modulation) based on a Micro-LED display characteristic. Wherein the PAM modulation adopts concentrated luminescence to realize the gray scale control of the Micro-LED, and the PWM modulation adopts a modulation strategy of subfield segmentation to realize the improvement of the refresh rate of the Micro-LED. The micro-LED display gray scale control method and device are suitable for micro-LED display gray scale control.

The invention relates to the technical field of data transmission control. In particular to a data transmission control method, device and equipment based on an SPI communication protocol and a medium, the method comprises the following steps: acquiring parameter information of SPI communication, and performing initial configuration on the SPI communication through an MCU according to the parameter information of the SPI communication to generate final configuration information of a chip selection signal; based on the final configuration information of the chip selection signal, pre-formatting the image information according to a communication protocol of the TFT screen to obtain formatted image information, and storing the formatted image information in an SPI-FLASH according to a structure sequence of the communication protocol of the TFT screen; and after the initial configuration and the formatted image information are stored, the MCU controls the final configuration information of the chip selection signal of the SPI, reads the formatted image information from the SPI-FLASH, and directly transmits the formatted image information to the TFT screen for display. The method has the effect of improving the data transmission efficiency and the display quality.

The invention discloses a display driving method, a display driving device and a display device. The display driving method comprises the following steps: expanding an input video stream into a target video stream; wherein the refresh rate of the target video stream is greater than the refresh rate of the input video stream; for each initial image frame in the target video stream, converting the initial image frame into a target image frame; wherein the resolution of the target image frame is greater than that of the initial image frame; and driving the display panel to display each target image frame. According to the embodiment of the invention, the refresh rate and the resolution can be improved at the same time, and the performance of high refresh rate and high resolution of the display panel can be brought into full play.

The present invention discloses a method for estimating blood flow velocity by transmitting sparse pulses, and specifically designs a blood flow velocity estimation method based on sparse pulses. The present invention transmits sparse pulses to obtain echo signals, and then performs autocorrelation operation and vectorization on the echo signals to obtain virtual echo signals with equivalent uniform emission and a larger number of pulses. The result of spectral estimation of the echo signals is compared with the result of spectral estimation of the virtual echo signals, and finally the value of blood flow velocity estimation is obtained. The method used in the present invention can obtain high-resolution, low-artifact blood flow velocity estimation results with a small number of pulses, which is beneficial for medical ultrasound systems to further improve the refresh rate and real-time performance of B-mode imaging.

The invention provides a ToF ranging method, device and equipment and a computer readable storage medium. The first laser is used as a fine ruler with a short measuring range in multi-scale measurement to perform phase type distance measurement, namely fine ruler distance measurement in an iToF distance measurement mode to obtain a first distance value with high precision, and the second laser is used as a coarse ruler with a long measuring range in multi-scale measurement to perform pulse distance measurement, namely a dToF distance measurement mode to obtain a second distance value with high precision. And based on a multi-scale measurement mode, according to the first distance value and the second distance value, obtaining a distance value between the to-be-measured object and the distance value between the to-be-measured object and the to-be-measured object. Therefore, the iToF distance measurement mode and the dToF distance measurement mode are combined for use, so that multi-scale measurement can be carried out at the same time, and the refresh rate of the multi-scale measurement of the iToF distance measurement mode is improved while the measurement precision is ensured.

The present invention discloses an optical path system and a laser radar, wherein the optical path system comprises a first optical path and a second optical path, and the vertical resolution and refresh rate can be improved by the optical path system. The laser radar comprises a laser emission source, a galvanometer or a multi-faceted reflective prism, an optical path system, a horizontal rotating structure, and a motor control module. The use of a laser emission source can greatly reduce the cost and the calibration workload. At the same time, a rotating multi-faceted reflective prism or a galvanometer and the optical path system are used, and the laser beams distributed in the horizontal and vertical directions can be many, thereby improving the horizontal and vertical resolution of the laser radar, and meeting the technical parameter requirements of a multi-line laser radar of a multi-channel transmitter. The horizontal rotating structure is driven to rotate by the motor control module, thereby driving the laser emission source and the galvanometer or the multi-faceted reflective prism to rotate synchronously, thereby realizing 360° three-dimensional scanning. This invention is used in the detection field.

The present disclosure relates to a display method and device, a terminal and a storage medium. The method is applied to a terminal including a display screen, and includes: determining a preset application that displays a screen at a second refresh rate lower than a first refresh rate; wherein the first refresh rate is the refresh rate of the display screen; before displaying the application screen of the preset application, acquiring and rendering the application screen; when displaying the application screen, displaying the rendered application screen at the first refresh rate. Through this method, when displaying the screen, the application can be adapted to the high refresh rate display screen, so that the display effect of the application screen is smoother.

The application relates to the technical field of display screens, in particular to a display screen refresh rate adjusting method and device, a display screen and a storage medium. The application detects a response signal of an active capacitive pen when the display screen is working; when the response signal is not detected, the refresh rate of the display screen is adjusted so that the display screen is in a high refresh rate mode, thereby achieving the high refresh rate of the display screen while supporting the active capacitive pen function.

The invention provides an animation generation method and device, electronic equipment and a storage medium. The method comprises the following steps: determining an original layer set for generating animations in a to-be-drawn layer set of a current frame; according to the hierarchical relationship of the image layers, each original image layer in the original image layer set is superposed in sequence through downsampling processing to obtain a reference image layer, and the resolution of the reference image layer is lower than that of the image layers in the original image layer set; an animation layer corresponding to the current frame is determined according to the reference layer, and the resolution ratio of the animation layer is higher than that of the reference layer.

The invention provides an animation generation method and device, electronic equipment and a storage medium. The method comprises the following steps: communicating with a first thread in an animation generation process to determine the processing capability of a first processor on a to-be-drawn layer set in a current frame; determining an original layer set used for generating the animation in the to-be-drawn layer set, and calling a sub-thread to perform superposition synthesis processing on the original layer set to obtain a reference layer; and after the processing capability is determined, an animation layer corresponding to the current frame is determined based on a second processor according to the processing capability and the reference layer, and the first processor and the second processor are both used for processing the layers.

The present invention discloses a method and system for displaying a high refresh rate at low grayscale of an LED. It is a display method based on PWM to improve the refresh rate of an LED screen, and belongs to the field of LED display technology. In order to solve the problems of insufficient refresh rate of the LED screen and display effect at low grayscale, the prior art breaks up the display cycle and distributes the lighting cycle as evenly as possible in one frame. However, when the grayscale is high, the original PWM pulse width is wide enough to allocate partial pulses to each broken up group; when the grayscale is low, the original PWM pulse width is short, which is not enough to allocate pulses to each broken up group. The present invention does not change the clock frequency and the total brightness, but reduces the on-current of the LED to the original #imgabs0# and increases the number of pulses to the original 2. P times, that is, the total pulse width becomes twice the previous P times, accordingly, when the LED screen displays in low grayscale, the pulse width can be fully dispersed and increased, ultimately improving the display refresh rate of the LED screen at low grayscale levels.

The invention provides an image acquisition method, an image acquisition device, a storage medium and a program product. The method is applied to the intelligent monitoring equipment and comprises the steps that the current exposure parameter of the intelligent monitoring equipment is obtained, and the current exposure parameter is the exposure parameter of a current picture collected by the intelligent monitoring equipment at the current moment; determining whether the current exposure parameter is greater than a parameter threshold; when the current exposure parameter is greater than a parameter threshold, adjusting a current brightness value of a target scene in the current picture to obtain a target brightness value, and adjusting the current exposure parameter according to the target brightness value and the prepared brightness value to obtain a target exposure parameter; under the condition that the current exposure parameter is smaller than or equal to a parameter threshold value, determining a target exposure parameter according to the current brightness value, the prepared brightness value and the parameter threshold value; and collecting a target image according to the target exposure parameter. The problem that in the prior art, an intelligent monitoring camera cannot accurately recognize objects and details in a picture in a backlight environment is solved.

The present invention relates to the field of liquid crystal display technology, and discloses a method, system, and chip for reducing the power consumption of a timing control chip of a liquid crystal panel, including obtaining historical viewing data of a user, building and training a user visual preference prediction model; collecting the user's visual attention data and display content data in real time, and determining the focus area on the liquid crystal panel in combination with the prediction model; dividing the liquid crystal panel into high, medium, and low resolution areas and setting corresponding pixel density and refresh frequency thresholds; performing visual saliency analysis on the display content to determine key salient areas and non-key salient areas; performing local refresh in different resolution areas, wherein the refresh frequency of the key salient area is higher than the refresh frequency of the non-key salient area. The system includes multiple modules to implement the above method. The chip adopts the system and method, and can effectively reduce the power consumption of the timing control chip of the liquid crystal panel.

Organic electroluminescent materials and devices thereof are disclosed. The organic electroluminescent material is a metal complex containing a La ligand with a structure as shown in a formula 1. When the novel metal complexes are applied to an electroluminescent device, the half-peak width and the capacitance of the device can be reduced, the response time and the refresh frequency of an OLED display device at a low gray scale can be improved by the organic electroluminescent device, excellent device performance can be kept, the comprehensive performance of the device can be improved, and the application prospect is wide. The method has huge advantages and wide prospects in industrial application. Also disclosed are an organic electroluminescent device comprising the metal complex and a composition comprising the metal complex.

This invention discloses a high spatiotemporal resolution millimeter-wave radar imaging system, comprising: a U-shaped antenna array module, wherein the transmitting and receiving antennas are symmetrically distributed in a U-shape, with an element spacing greater than or equal to half a wavelength, adapted to the SAR imaging mechanism, and using an electronic scanning scheme to achieve beam scanning; a radio frequency (RF) module, employing a cyclic one-transmit-multiple-receive mode, completing data acquisition for all transmitting and receiving channels by cyclically switching the transmitting elements to ensure high system refresh rate and spatiotemporal resolution; a signal processing module, receiving multi-channel echo signals, rearranging the echo signals, and using a hardware-parallel accelerated time-domain backpropagation (BP) algorithm for imaging; and a control module, using a microcontroller to control the RF chip of the RF module. This invention verifies the applicability of antenna spacing greater than or equal to half a wavelength in near-field SAR imaging mechanisms, overcomes the dependence of traditional MIMO systems on antenna half-wavelength spacing, achieves high spatiotemporal resolution near-field imaging, and reduces system complexity and cost.

The application discloses a display panel and a display device, and relates to the technical field of display panels, and discloses a display panel and a display device, which comprises a first area comprising a plurality of pixel circuits, a second area comprising a first start control line, a first driving circuit and a plurality of clock signal lines, the first start control line being electrically connected to the first driving circuit, and the first driving circuit comprising a plurality of shift register units; in the shift register units, a plurality of clock terminals are respectively electrically connected to the plurality of clock signal lines, and N shift output terminals are respectively electrically connected to N adjacent rows of pixel circuits; in a first working mode, the plurality of clock terminals in the shift register units receive different clock signals, so that the N shift output terminals output gate driving signals in time; and in a second working mode, two clock terminals in the shift register units receive the same clock signal, so that the N shift output terminals output gate driving signals at the same time. In the application, the display panel adopts the second working mode, so that the charging time of each row of pixel circuits can be increased, or the refresh rate can be improved.

The present invention discloses a capacitive touch screen detection circuit and a control method thereof, which belongs to the field of capacitive touch screen detection. The detection circuit includes a coding module, a timing detection module, a touch electrode, a switch module, a charge cancellation module, a charge-to-voltage module, a digital converter and a decoding module. The control method of the detection circuit includes the following steps: step one: generating a control timing; step two: detecting whether the control timing is abnormal; step three: controlling the on and off of each touch electrode in the circuit; step four: obtaining an external first charge; step five: redistributing the first charge to obtain a second charge; step six: converting the second charge into a voltage; step seven: converting the above voltage into a digital quantity; step eight: calculating the digital quantity to obtain a capacitance value. The present invention realizes multi-channel capacitance simultaneous detection with a single analog front end (AFE) through orthogonal coding and digital decoding, and further reduces the area of ​​the chip.

The invention discloses a radar resource scheduling method based on stacked beams, and the method comprises the steps: determining radar parameters, and an azimuth angle range and a pitch angle range which need to be scanned according to a plurality of target tasks; further determining the number of azimuth wave positions and the number of pitching wave positions; determining a plurality of pitching wave position piles corresponding to each azimuth dimension according to the number of the pitching wave positions and a preset number; based on the attribute information and the mapping relationship of each target task, aggregating a plurality of target tasks corresponding to the same azimuth dimension according to a pitching wave position pile to obtain a plurality of aggregated task packets corresponding to each azimuth dimension; and scheduling a target aggregation task packet from the plurality of aggregation task packets corresponding to each azimuth dimension, and carrying out parallel processing on a plurality of target tasks in the target aggregation task packet. According to the method, the searching and scanning time can be greatly shortened, and rapid discovery and response to high-speed and high-maneuvering targets and sudden threats are realized; the multi-task robustness of a radar system can be improved in a high-density target environment.

The application discloses a GPU-based multi-client real-time spectrum monitoring system and a method thereof, and belongs to the technical field of spectrum analysis.The method comprises the following steps: acquiring the spectrum state, behavior information, host state and service quality requirement of a client; calculating the interference intensity coefficient, behavior state coefficient, host state coefficient and service quality coefficient of the client through a corresponding model; dynamically allocating the computing power of each client by using a power distribution model based on the above coefficients; and finally outputting the target refresh rate of each client by a refresh rate optimization model in combination with the allocated power and service quality coefficient.The application solves the problem that the resource allocation in the prior art is rigid and cannot adapt to the differentiated requirements of multi-clients by multi-dimensional state sensing and modeling, realizes intelligent, dynamic and efficient allocation of system computing resources, guarantees the service quality of multi-services, and improves the overall energy efficiency and stability of the system.

The application relates to a circuit and method for improving the refresh rate of an LED display screen. The circuit for improving the refresh rate of the LED display screen comprises a data processing module and a PWM control unit, wherein the analog constant current source module is used for reducing the current according to the required refresh rate, and the PWM control unit is used for transforming the PWM grayscale data to reduce the PWM period. The method for improving the refresh rate of the LED display screen is as follows: reducing the current according to the required refresh rate, and then proportionally adjusting the PWM grayscale data according to the required PWM period. By reducing the output current of the analog constant current source, the grayscale value is proportionally reduced under the same current equivalent value, and the display period of the PWM can be reduced, so that the refresh rate of the LED display screen can be improved under the premise of fixed scanning number.

The invention relates to the technical field of augmented reality display, and discloses an augmented reality display method and system, and the method comprises the following steps: S1, enabling an XR device by a user; s2, a user uses a data line to connect the XR equipment and the terminal equipment; s3, performing identification and adjustment; s4, inputting the content of the terminal equipment into the XR equipment; and S5, the XR device displays the input content of the terminal device. The invention provides an augmented reality display method and system, and provides a brand-new XR convenient display output method and system by integrating technical innovation in the aspects of display standards, hardware design and software architecture, so as to solve the problem of pain points of current XR equipment in the aspect of display output, and improve the overall user experience and market competitiveness.

The invention relates to an array substrate and a preparation method thereof. The array substrate comprises a display area and a frame area which are arranged adjacently; the array substrate comprises a substrate; the shifting register is arranged on one side of the substrate and located in the frame area; the shift register comprises a first transistor, wherein the first transistor comprises a first active layer; the pixel circuit is arranged on one side of the substrate and located in the display area; the pixel circuit comprises a second transistor, and the second transistor comprises a second active layer; the carrier mobility of at least part of the first active layer is greater than that of the second active layer, and the material of the first active layer comprises a polycrystalline oxide semiconductor. Therefore, according to the array substrate and the preparation method thereof provided by the invention, the performance of the array substrate and the display panel can be improved.

The invention discloses a vertically packaged Micro-LED colorized display unit, which is characterized in that a colorized display module is arranged on one surface of a multi-layer carrier plate, and a pixel driving IC chip is arranged on the other surface of the multi-layer carrier plate; the pixel driving IC chip is used for receiving an external signal and driving display, the pixel driving IC chip realizes electrical interconnection with the colorized display module through the multi-layer carrier plate and transmits the received external signal to the colorized display module, and the colorized display module is used for realizing colorized display of the external signal; the multi-layer support plate is formed by any number of TGV glass support plates, TSV silicon support plates or combinations of the TGV glass support plates and the TSV silicon support plates, and every two adjacent support plates are laminated through a silicon oxide medium. According to the scheme, a special TFT (Thin Film Transistor) or CMOS (Complementary Metal-Oxide-Semiconductor Transistor) substrate does not need to be developed, instead, vertical integration of the pixel driving IC chip and the LED pixel chip is realized by utilizing the horizontal re-wiring and the vertical metalized through holes of the multi-layer support plate, high-yield manufacturing of a colorized display unit can be realized, the colorized display unit can be seamlessly spliced into any space shape, the size of a splicing seam is less than or equal to 4 microns, and the production cost is reduced. High-resolution and high-refresh-rate display with the same effect as that of TFT or CMOS active driving can also be achieved through the scale of the splicing units and the design of matched driving chips of the splicing units.

The invention relates to the field of FFT refresh rates, in particular to a method for increasing the FFT refresh rate based on a dual-port RAM in an FPGA and a computer device. According to the scheme, the method comprises the following steps: instantiating a dual-port RAM, connecting a write data end with a write clock signal, a write address signal and a write data signal, and connecting a read data end with a read clock signal, a read address signal and a read data signal; the FPGA is sequentially written into the dual-port RAM from a data writing port of the dual-port RAM, and a writing address signal of the RAM is circularly and progressively increased from 0 to 1023; after the data is fully written, a data reading port of the dual-port RAM reads out the first frame data cached in the RAM from the address 0 to 1023 in a circulating and progressive increasing manner; and the initial address of the read data of the new frame of FFT data is the end address of the read data of the previous frame, and the initial address of the read data of the new frame is fallback forwards 205, and the initial address is cyclically and progressively increased to the previous address of the initial address of the read operation of the current frame. The method is suitable for improving the FFT refresh rate.

A Micro-LED display grayscale control method and display device, relating to the field of Micro-LED display technology. Aiming at the problem that the existing Micro-LED display technology cannot achieve instant light emission, the present invention proposes a Micro-LED display grayscale control method, wherein the control method is a grayscale hybrid control method combining PAM and PWM proposed based on the display characteristics of Micro-LED. Among them, PAM modulation uses centralized light emission to achieve Micro-LED grayscale control, and PWM modulation uses a sub-field segmentation modulation strategy to achieve an increase in the refresh rate of Micro-LED. The present invention is suitable for display grayscale control of Micro-LED.