35results 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 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.

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 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 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.

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 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 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.

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.

The application provides an array substrate, a driving method and a display device. The array substrate comprises a driving module, a plurality of rows and columns of sub-pixels, a plurality of columns of data lines and a plurality of rows of scanning lines; one frame time comprises at least two sub-frames; the driving module provides scanning signals to the scanning lines, controls the plurality of rows of scanning lines to be opened in turn in the sub-frames, and controls the sub-pixels corresponding to the same color and electrically connected to the opened scanning lines and the same data line in the sub-frames; in the sub-frames, there are overlapping time periods and non-overlapping time periods between effective time periods of scanning signals provided by at least two adjacent scanning lines in the plurality of rows of scanning lines opened in turn; and data voltages received by the data line in at least part of the overlapping time periods are the same as data voltages received by the data line in at least part of the non-overlapping time periods. The application can improve the charging time of at least part of the sub-pixels, improve the charging rate and the refresh rate, and improve the display quality.

The invention provides an array substrate, a driving method and a display device. The array substrate comprises a driving module, a plurality of scanning lines, a plurality of data lines and a plurality of pixels, two scanning lines are arranged between two adjacent rows of sub-pixels; two columns of sub-pixels are arranged between the two columns of data lines; in the same row of sub-pixels, the plurality of sub-pixels electrically connected with the same data line have at least two colors; in the adjacent rows of sub-pixels, at least two sub-pixels electrically connected with the same data line have the same color; the driving module controls an overlapping time period and a non-overlapping time period to exist between effective time periods of scanning signals provided by at least two scanning lines which are opened in sequence in a display frame; the data voltage received by the data line in at least part of time in the overlapping time period is the same as the data voltage received by the data line in at least part of time in the non-overlapping time period. The charging rate and the refresh rate can be improved, and the display quality is improved.

The invention relates to a data transmission method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a plurality of first data packets in sequence in any connection interval between the stylus and the electronic equipment; wherein the first data packet comprises pressure sensing data collected by the touch pen, and the touch pen and the electronic equipment are in communication connection based on Bluetooth; whenever the first data packet is obtained, setting a numerical value on a flag bit in the first data packet as a first preset value, and sending the first data packet to the electronic equipment; wherein a first preset value in the first data packet is used for indicating that the stylus has a to-be-sent non-empty data packet after the first data packet. According to the method, the numerical value on the flag bit in the data packet is set as the first preset value, so that a plurality of data packets are sent in one connection interval, the refresh rate of the touch pen is improved, the delay of the touch pen is reduced, and the user experience is improved.

The invention provides an OLED (Organic Light Emitting Diode) micro display device and a manufacturing method thereof, a driving circuit and a pixel circuit are respectively and independently manufactured on two wafers to obtain a driving wafer with the driving circuit and a pixel wafer with a plurality of pixel cathodes, and then the two wafers are bonded together by introducing a hybrid bonding process, so that the OLED micro display device is manufactured. The driving circuit is electrically connected with the pixel cathode, and then the pixel cathode is led out to the back surface of the pixel wafer through a through silicon via (TSV) technology so as to be electrically connected with the OLED pixel structure formed on the back surface of the pixel wafer, so that wiring from the driving circuit to the OLED pixel structure when the driving circuit and the OLED pixel structure are integrated on the same wafer plane is omitted; according to the OLED micro-display device, the wiring length is reduced, so that the driving circuit directly controls the OLED pixel structure in a point-to-point manner, the RC delay is greatly reduced, the refresh rate is improved, the working frequency of the manufactured OLED micro-display device can be remarkably increased, and the OLED micro-display device is small in area and narrow in frame.

This application discloses a display device, a wearable display device, and a method for determining the position of the gaze point, relating to the field of virtual reality technology. Because the processing circuit in the display device has high processing efficiency for the electrical signals sent by each photoelectric sensing component, the processing circuit can quickly determine the position of the user's gaze point on the display panel based on the electrical signals sent by each photoelectric sensing component, thereby improving the efficiency of the display panel in displaying images and achieving a higher refresh rate.

The application discloses a driving method of a large-size multi-color reflective LCD, comprising the following steps: S1, a common electrode applies a first voltage to a pixel, and a data line applies a second voltage to the pixel; S2, the common electrode applies a third voltage to the pixel, and the data line applies the second voltage to the pixel; S3, XON is turned on, a gate drive sends a signal to turn on all scanning lines, all pixels are turned on, a source drive sends a signal to input a voltage to all data lines, the data line simultaneously applies the second voltage to all pixels, and the common electrode simultaneously applies a fourth voltage to all pixels, wherein the first voltage, the second voltage, the third voltage and the fourth voltage are different from each other. The driving method provided by the application can reduce the charging time of the reflective LCD pixel, thereby reducing the load, improving the frame rate, and being especially suitable for a large-size reflective LCD. Moreover, due to the dynamic adjustment of the pixel charging voltage, more display colors can be excited, and the method can also be suitable for a multi-color reflective LCD.

The invention provides a temperature sensor circuit which is used for detecting specific temperature in a DDR3 semiconductor memory chip and comprises a temperature change sensing module which is used for detecting temperature change, inputting power supply voltage and outputting temperature sensing voltage corresponding to the temperature change; a reference temperature module that outputs a reference voltage based on a specific temperature to be detected; and a comparator which receives the temperature sensing voltage output from the temperature change sensing module and the reference voltage output from the reference temperature module, and compares the temperature sensing voltage and the reference voltage to determine whether the temperature reaches a specific temperature to be detected. If the sensitivity of the temperature-induced voltage with respect to a change in the power supply voltage is set as a first sensitivity and the sensitivity of the reference voltage with respect to a change in the power supply voltage is set as a second sensitivity, the first sensitivity and the second sensitivity are configured to approach each other.

The invention relates to the technical field of flexible display, in particular to a TFT (Thin Film Transistor) module structure without a protruding electrode framework, a preparation method of the TFT module structure and a TFT display panel. The TFT module structure without the protruding electrode framework comprises a flexible substrate with a groove, an embedded electrode embedded in the groove and flush with the substrate, a TFT active layer covering the embedded electrode and the substrate, an insulating layer and a grid layer overlapped with the projection of the TFT active layer. Through the electrode embedded design and the overall planarization process, stress concentration and interface defects caused by a traditional protruding electrode can be effectively eliminated, and the bending resistance, the interface adhesion strength and the production yield of the device are remarkably improved. Meanwhile, the thickness of the embedded electrode can be increased, the resistance can be reduced, and the conductivity and the signal transmission speed can be improved on the premise that the fracture risk is avoided, so that the pixel charging and discharging efficiency and the display refresh rate are improved, and the defects of a traditional structure in the aspects of conductivity, yield and process cost are fundamentally overcome.

The present invention discloses a gate drive circuit, method, display panel and timing controller, wherein the gate drive circuit comprises: a first trigger signal line, a second trigger signal line and a plurality of GOA groups; a plurality of GOA groups are arranged in sequence; each GOA group comprises m rows of GOA units arranged in sequence, m being an even number; in the first group of GOA groups, the first trigger signal line connects the trigger port of the odd-numbered GOA units, and the second trigger signal line connects the trigger port of the even-numbered GOA units; for any GOA group, the output port of the GOA unit in the GOA group is cascaded with the trigger port of the GOA unit at the corresponding position in the latter GOA group; for any GOA unit, the first reset port of the GOA unit is cascaded with the output port of the corresponding n subsequent GOA units, n being an even number. The present invention can effectively control the cost of high-resolution products and is compatible with a variety of high refresh rate modes of display panels.

This application provides a display device and a driving method for the display device. In the display device, a data storage chip stores preset first firmware resources and second firmware resources. A timing controller is used to download the first firmware resources from the data storage chip and output first timing parameters according to the first firmware resources when the display panel is configured in a first mode; and to download the second firmware resources from the data storage chip and output second timing parameters according to the second firmware resources when the display panel is configured in a second mode. Within one screen display cycle, the first timing parameters include display timing parameters and touch timing parameters, and the second timing parameters include display timing parameters, wherein the frequency of the display timing parameters in the second timing parameters is higher than the frequency of the display timing parameters in the first timing parameters. According to this application embodiment, display panel mode switching can be realized quickly and effectively, which helps to improve the refresh rate of the display panel.