1097 results about "Refresh rate" patented technology

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

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

The invention relates to the technical field of display screen driving, in particular to a low-power-consumption display screen driving method and system based on the OLED technology, and the method comprises the steps: S1, carrying out the image feature detection, collecting the inter-frame brightness change rate, the sub-pixel gray level distribution and the regional temperature gradient, and generating a dynamic driving signal parameter; s2, voltage compensation adjustment: dividing a power consumption area according to a brightness change rate, calculating a brightness compensation coefficient and correcting the voltage by combining gray level distribution and a temperature gradient, and realizing sub-pixel voltage dynamic adjustment; and S3, refresh frequency control: adjusting a local refresh rate according to the compensation coefficient and the correction voltage, executing a frequency reduction strategy on a high-power-consumption area, triggering ghosting suppression on a low-power-consumption area, and applying a temperature threshold to constrain a refresh upper limit. According to the invention, energy-saving driving, ghost suppression and brightness balance of the OLED display screen are realized, and the display performance and the system intelligence are effectively improved.

The invention provides an immersive concert experience system based on virtual reality, and belongs to the technical field of virtual reality, and the system comprises a dynamic adjustment module which is used for predicting the preference of a user for stage arrangement, light effects and music types through a machine learning model according to the historical preference data of the user, and outputting the preference to the stage arrangement, light effects and music types; dynamically adjusting visual elements and sound field parameters of the virtual scene and a refresh rate and a field angle of the virtual scene in combination with the user physiological indexes and the user head motion trail which are acquired in real time; the action capture and feedback module is used for capturing an interaction instruction sent to the dynamically adjusted virtual scene by the limb action of the user in real time; and the interaction feedback module is used for enabling the virtual performer to respond to the interaction instruction of the user in real time based on the expression recognition and voice synthesis technology, and generating personalized interaction feedback content. A user constructs an immersive music interaction field domain, and experience logic of a virtual music meeting is completely reconstructed.

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.

The invention discloses a liquid crystal display screen efficient refresh rate control method and system and a medium, and relates to the technical field of display screen control. The method comprises the steps of obtaining a display state of a display screen; constructing cascade refreshing logic and deploying a driving controller; the method comprises the following steps: carrying out first-order display partitioning in a display mode, carrying out second-order display partitioning in a mode plate, matching a distributed refresh rate interval and writing the interval into a register, determining a real-time refresh rate by taking the distributed refresh rate interval as a constraint according to interface dynamics, and generating a vertical synchronizing signal by taking a necessary pixel region as a refreshing target. And writing the vertical synchronizing signal into a register, and performing display state refreshing control on the display screen. The technical problems that in the prior art, control over the refresh rate of a liquid crystal display screen is not flexible, the refresh rate cannot be accurately adjusted according to different display states and interface dynamics, energy consumption is high, and the display effect is poor are solved, the refresh rate is adjusted in a self-adaptive mode according to the interface dynamics, and the technical effect of reducing energy consumption while the display performance is guaranteed is achieved.

The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display driving control method and system. Comprising the following steps: SS01, multi-modal sensing and state triggering: fusing a user distance, a fixation point coordinate and ambient light illumination in real time by using an integrated sensor, and triggering an eye protection mode or a self-adaptive sleep mechanism according to the user distance, the fixation point coordinate and the ambient light illumination, SS02, image partitioning and strategy generation: dividing a screen into N * M partitions, and SS03, distinguishing a dynamic region from a static region according to the brightness histogram and the motion vector of each partition, and outputting differentiated refresh rates and backlight strategies, and SS03, performing big data learning and model optimization, and collecting user behaviors. The system has the advantages that the infrared proximity sensor, the eyeball tracking sensor, the distance sensor and the ambient light sensor are integrated through the multi-mode sensing and state triggering module, multi-dimensional data such as user distance, fixation point coordinates and ambient light illuminance are fused in real time, and active intelligent sensing of the user state and the environment is achieved.

The invention provides an intelligent POB module integration platform and a control method thereof, and the method comprises the steps: detecting the state data of each pixel point of an LED display screen through an optical sensing array, obtaining a damaged pixel point in the LED display screen, recording the damaged pixel point to a storage unit, and maintaining a dead pixel position table in the storage unit; compensating the brightness of the bad pixel points through the neighborhood pixel points; the display content of the LED display screen is predicted through AI during compensation, and the refresh rate of the LED display screen is dynamically driven according to the predicted display content; according to the physical pixel density, the LED display screen is divided into grid partitions, the grid partitions are sorted according to priorities, the real-time power consumption of each partition is calculated after the LED display screen is refreshed, and if the real-time power consumption is larger than a preset threshold value, the current and the duty ratio of the low-priority area are reduced. Through the control method, a compensation scheme can be started in time after a dead pixel occurs, the maintenance and replacement cost is reduced, and the operation and maintenance efficiency is improved.

The invention discloses a variable refresh rate control circuit and method, a display panel and a display device, and relates to the technical field of display, the circuit comprises pixel units arranged in an array and a corresponding refresh control module, and the refresh control module comprises a mode judgment unit, a refresh enable unit and a data write-in unit. The mode determination unit determines a pixel refresh mode through a row strobe signal of a scan line and a data signal of a source line, and outputs a first / second potential of a first / second potential line. The refresh enabling unit turns off the data write-in unit based on a first potential output by the mode judgment unit in a static refresh mode so as to maintain pixel data of the corresponding pixel unit, and turns on the data write-in unit based on a second potential output by the mode judgment unit in a dynamic refresh mode so as to write a data signal into the corresponding pixel unit. Pixel-level variable refresh rate adjustment is achieved, high-refresh-rate and low-refresh-rate display can be supported at the same time, and power consumption is effectively reduced while the display effect is guaranteed.

The present disclosure relates to the technical field of display. Provided are a shift register unit, a gate driving circuit, a display panel and a driving method therefor. The shift register unit is applied to a gate driving circuit in a display panel, the gate driving circuit comprising a plurality of cascaded shift register units, and the display panel comprising a pixel driving circuit. The shift register unit comprises: a first output circuit and a second output circuit, the first output circuit being used for providing in a first driving state a gate driving signal to the pixel driving circuit and used for providing in a second driving state an invalid level signal to the pixel driving circuit, and the second output circuit being used for providing an input signal to a lower-level shift register unit. The display panel using the shift register unit can realize adjustment of the local refresh rate. (figure 2)

The invention provides a display method and a display device. The display method comprises the following steps: acquiring a plurality of pieces of first frame image information corresponding to a plurality of continuous first frame pictures; dividing a plurality of areas in a display area according to the plurality of pieces of first frame image information, wherein different areas have different change frequencies of image information in a plurality of first frame images; determining a corresponding refresh rate according to the change frequency of the picture information of each region in the plurality of first frames of pictures; and according to the refresh rate of each region, driving the sub-pixels in the region to carry out picture display, so that the flexibility of partition frequency division of the display device is improved, and high fluency of a display picture and low power consumption of the display device are both considered.

In a current drive type display device of a variable refresh rate system such as an organic EL display device, an on-bias voltage line for supplying an on-bias voltage Vobs to be applied to a driving transistor in a pixel circuit is provided in a display portion in order to reduce an influence of a hysteresis characteristic of the driving transistor on display luminance. Therefore, when an operation mode is switched from the low refresh mode to the high refresh mode, among pixel circuits in the same column connected to the same data signal line, a pixel circuit to which data is written and a pixel circuit to which the on-bias voltage is applied can be mixed. This enables quick switching from the low refresh rate to the high refresh rate.

The invention discloses a pixel circuit and a display panel, and the pixel circuit is characterized in that a reset transistor, a second light-emitting control transistor and a driving transistor are all in an on state in a period of time, and a first light-emitting control transistor, a write-in transistor and a compensation transistor are all in an off state; according to the technical scheme, the driving transistor can be reset through the reset transistor and the second light-emitting control transistor, flicker can be improved, charging time is not occupied due to the fact that the driving transistor is not reset through the write-in transistor, and display with a higher refresh rate can be achieved.

The invention provides a display panel and a display device, and belongs to the technical field of display driving. The display panel comprises a gate drive unit and a frequency division unit, a display area of the display panel comprises a pixel array composed of a plurality of pixel circuits arranged in an array mode, the gate drive unit comprises a plurality of cascaded gate drive circuits, and each gate drive circuit is connected with one row of pixel circuits. The frequency division unit comprises a plurality of frequency division circuits, and the pixel circuit is used for refreshing and displaying according to a driving signal output by the gate driving circuit. And at least one frequency dividing circuit is arranged between each gate driving circuit and the pixel circuit. The frequency division unit is used for controlling the pixel circuits in partial areas of the display area to input driving signals through the frequency division circuits during the display period of one frame of image, and the pixel circuits in other areas do not input the driving signals, so that the pixel circuits in different areas in the display area carry out display at different refresh rates. Therefore, balance of the refresh rate and the power consumption of the display panel can be realized.

The invention provides a time sequence control circuit, a data driving circuit, a display panel and a data output method. Wherein the time sequence control circuit is used for receiving an image signal and correspondingly outputting a data signal and a data latch signal, and the time sequence control circuit at least comprises a detection unit and a signal generation unit. The detection unit determines a corresponding refresh rate according to the data signal and outputs a corresponding detection signal. The signal generation unit outputs a data latch signal according to the detection signal, and adjusts the duty ratio of the data latch signal or the switching speed of the two potentials when the refresh rate is increased. The data driving circuit outputs a gray scale voltage corresponding to the data signal to a pixel unit in the display panel according to the data latch signal.

The invention discloses a partition refresh circuit and a refresh control method thereof, a display panel and display equipment, and relates to the technical field of display, the circuit comprises a plurality of cascaded gate driving modules, each gate driving module comprises a gate scanning unit and a refresh selection unit, a direct-current potential signal accessed to a direct-current voltage end by the grid scanning unit under the driving of a previous-stage scanning signal is transmitted to the refresh selection unit, the refresh selection unit is triggered to access a data memory signal provided by a data signal end, and a refresh starting signal acting on a refresh starting end is determined according to the data memory signal; and triggering the gate scanning unit to output a dynamic refreshing signal line by line from the initial pixel line so as to perform partition refreshing operation on all the pixel lines of the dynamic refreshing partition, and stopping the partition refreshing operation according to a reset signal of a reset end until the gate scanning unit scans to the final pixel line of the dynamic refreshing partition. Independent refresh rate control of different areas of the screen is realized to reduce the display power consumption of the screen.

The invention provides an image display method and electronic equipment, and the method comprises the steps that when the electronic equipment is in a first equipment state, a display screen displays an image at a first refresh rate, and when the electronic equipment is in the first equipment state, the electronic equipment receives a target interaction event, the target interaction event comprises a click event and a first sliding event, and the first sliding event is a sliding event of which the sliding speed is greater than a first preset threshold value; the first refresh rate is the highest refresh rate of the display screen, or the first refresh rate is greater than or equal to a preset refresh rate threshold. Visibly, when the electronic equipment is in the first equipment state, the electronic equipment can refresh the content in the display screen at the highest refresh rate, so that the situation that the electronic equipment refreshes the content in the display screen at the highest refresh rate under unnecessary conditions is avoided, and system resources are saved.

The application discloses a driving method, device and equipment of a pixel circuit, relates to the technical field of display, and can solve the problems of too large amplitude of luminance difference between non-emitting and emitting stages in the picture display process, too long non-emitting time, and too strong flicker caused by non-emitting or weak emitting in part of the period. The application can flexibly and non-uniformly configure the duty cycle of the time length of each level stage in each control period, such as flexibly configuring the time length of one or more level stages for emitting light after anode reset according to whether each control period is used for anode reset, or differentiating the driving of the level stage not used for emitting light in the refresh frame period and the holding frame period based on different reset frequencies and / or different display refresh rates, so that the emitting light of the multiple control periods is uniform or the emitting duty cycle is improved to optimize the screen flicker, better display and eye protection effects are achieved under the premise that the pixel can normally emit light in each control period.

Embodiments of the present application provide an electronic device and its driving method, display driver, and processor, relating to the field of electronic technology. These devices are used to ensure that the actual screen refresh rate can promptly respond to the image refresh rate of a core processing chip, such as an upper-layer SOC. The electronic device includes a display driver IC (DDIC) and a system-on-chip (SOC). The display driver IC (DDIC) is used to transmit a time-of-flight (TE) signal. The TE signal has a first fixed frequency f1, where f1 is a common multiple of the multiple screen refresh frequencies f supported by the electronic device. For example, if the electronic device supports 60 Hz, 90 Hz, and 120 Hz, then f1 is 360 Hz. The SOC is used to receive the TE signal and output display data to the display driver IC at a variable frequency f2. Here, f1 = n * f2. Therefore, the pulse period of f1 is the first pulse period T1, and the pulse period of f2 is the second pulse period T2, where T2 = n * T1. n is the ratio of f1 to the current frame's f. The second pulse period T2 of the current frame f2 is always n times the first pulse period T1 of f1, meaning that display data is always transmitted once every n T1s. n varies with the screen f.

The invention discloses a pixel screen control method and device, equipment and a product, and the method is executed by a liquid crystal controller, and comprises the following steps: analyzing image data line by line into display data, and packaging the display data into a target serial format adaptive to the layout of a pixel screen lamp bead interface, the lamp bead interface layout comprises a row scanning driver and a constant current driver which are used for driving a pixel screen to display; transmitting the display data in the target serial format to a corresponding serial data interface of the constant current driver through a parallel data interface outside the row blanking and field blanking periods; a line scanning control signal is sent to a line scanning driver, and the line scanning driver is driven to control each line of lamp beads in a lamp panel of the pixel screen to be activated line by line; and sending a constant-current control signal to a constant-current driver, and driving the constant-current driver to control the lamp beads activated by the row scanning driver in the pixel screen to adjust the gray value according to the display data. According to the invention, a brand new pixel screen control technical framework is realized by utilizing the liquid crystal controller, and the display requirements of high resolution and high refresh rate can be met.

A computer-implemented method comprising receiving, by an input device from a host computing device, a display refresh rate for a display, both the display and the input device being communicatively coupled to the host computing device. The method further includes computing, by the input device, a frequency multiplier based on the display refresh rate and a selected report rate of the input device, the report rate corresponding to a frequency at which the input device reports activity of the input device to the host computing device and calibrating, by the input device, the report rate to a new report rate based on the computed frequency multiplier. The method may further include reporting activity of the input device to the host computing device at the new report rate.

According to the refresh rate adjusting circuit and the display panel provided by the invention, the refresh starting module is arranged to output the starting signal to the gate driving circuit, so that the gate driving circuit can perform scanning signal re-output based on the starting signal besides default scanning signal output; therefore, the refresh rate of the pixel row corresponding to the gate drive circuit can be improved, and meanwhile, the refresh ending module is arranged to stop the improvement of the refresh rate, namely, the refresh starting module and the refresh ending module are used for realizing the selection of the refresh rate improvement area, so that the refresh rate improvement efficiency is improved. The selection for improving the refresh rate can be carried out on the region in the picture according to actual requirements; in order to realize resetting of re-refreshing, a refreshing and resetting module is arranged, so that the complete steps of starting, transmitting and ending in the re-refreshing process are realized, the refresh rate of partial areas in the display picture is improved, and the setting of different refresh rates of different areas in the display picture is realized.

The invention belongs to the technical field of display driving, and particularly relates to a control circuit, an image compensation control device and a display panel, and the control circuit comprises a picture monitoring unit which outputs a voltage signal corresponding to a current refresh rate when determining that a current display picture is an abnormal picture according to a plurality of display parameters; a delay control unit configured to compare the voltage signal with a turn-on threshold and a turn-off threshold respectively, and output a switch control signal based on a comparison result; the switch unit is configured to switch on or switch off a signal path between the image compensation output end and the post-stage driving circuit in response to the switch control signal; therefore, through cooperative work of the picture monitoring unit, the delay control unit and the switch unit, a stable buffer area is set for starting and stopping of the ICA function, and the problems of frequent switching of the ICA function and picture flickering caused by fluctuation of parameters such as the refresh rate near a critical value are solved.

The present disclosure relates to display devices and imaging control methods of a display device. One example display device includes a display, a lens assembly, a driver, and a controller. The controller is configured to convert a first image into n consecutive second images, and generate a drive signal used to control the driver to move, where an image resolution of the second image is less than an image resolution of the first image, a refresh rate of the second image is greater than a refresh rate of the first image, and n≥2. The driver is configured to drive, under control of the drive signal, at least one optical element or the display connected to the driver to move to adjust a display location of the second image displayed by the display, so that the n consecutive second images are displayed at n different locations.

The embodiment of the invention provides a display screen direct-drive display method based on a data algorithm, and belongs to the field of display screen display methods. The method comprises the following steps: acquiring RGB frame data and environment sensing data; preprocessing the acquired RGB frame data, generating an importance degree matrix, and grading the image area of the display screen; dynamically distributing the number of sub-cycles of pulse width modulation, matching different pulse widths for image areas of the graded display screen, and generating a compensated gray matrix by using a nonlinear compensation method; generating a dead pixel position matrix according to the scanned pixel state of the display screen, and generating a compensated brightness matrix of the display screen by using a brightness diffusion compensation method; a plurality of logic boards are dynamically synchronized by utilizing an FPGA, and a dead pixel avoidance mechanism is adopted to realize direct-drive display of a display screen. According to the invention, pocking marks are eliminated, low gray scale maintains high refresh rate, chromatic aberration is reduced, dead pixels of the display screen do not need to be halted for maintenance, cost is reduced, brightness is compensated for natural transition, and visual uniformity is compensated for.

The invention relates to the technical field of AMOLED display driving, and discloses an AMOLED display driving chip integrated system with high refresh rate and low power consumption. The system comprises a pixel flow time sequence analysis module, a dynamic compensation model construction module, a refresh rate adaptive modulation module and a power consumption constraint optimization module. A pixel stream time sequence analysis module captures video source frame cache data in real time, and extracts a pixel brightness distribution matrix and an inter-frame change gradient; a dynamic compensation model building module builds a dynamic voltage compensation network according to the current frame and historical frame information, and fuses the current frame and historical frame information through a space-time attention mechanism; the refresh rate adaptive modulation module generates a decision diagram according to the inter-frame change gradient, and regulates the refresh rate in different regions; and the power consumption constraint optimization module is combined with a chip junction temperature parameter to generate a partition backlight current constraint coefficient matrix. The system can optimize display image quality and fluency, realizes power consumption fine control, guarantees stable operation of a chip, and is suitable for various AMOLED display terminals.

The invention relates to an image processing method and device for virtual shooting. The method comprises the following steps: receiving a latest image generated by rendering a current virtual scene from a rendering module and associated information of the latest image; generating a target number of frame insertion images according to the latest image, the associated information of the latest image and the previous image; performing projection transformation on the newest image and each frame insertion image based on the corresponding camera data to obtain a transformed newest image and each transformed frame insertion image so as to correspond to a camera; and in response to the refresh rate of the screen, sequentially sending the transformed frame insertion images and the transformed latest image to the screen, so that the screen sequentially displays the transformed frame insertion images and the transformed latest image after the previous image is displayed. The real-time frame insertion is realized while the high resolution of the virtual scene picture is ensured, the screen display picture is free of pause and smoother, the frame rate of the screen image is improved, the virtual shooting effect is improved, and the shooting requirement is met.

The invention relates to the technical field of display system driving, and discloses a high-refresh-rate driving chip power consumption optimization control system which comprises an image content complexity modeling module for extracting region sparsity features, a visual attention prediction module for generating an attention heat map, and a display module for displaying the attention heat map. The combined graph modeling and optimization module fuses the information to construct a graph structure and predicts a refresh level, the refresh strategy generation module generates an optimal refresh strategy based on the level, the soft and hard translation execution module converts the strategy into a driving instruction and issues and executes the driving instruction, and the feedback scheduling and self-adaptive correction module dynamically adjusts the graph structure according to chip feedback. The method is used for optimizing next frame refresh control. According to the method, through region division and graph structure modeling, image region refreshing demand modeling is carried out in combination with an attention mechanism and loss feedback, differential refreshing is realized, invalid refreshing of a low-change region is effectively avoided, the content perception ability of a refreshing strategy is improved, and thus the overall power consumption is reduced.

The invention discloses a high-definition video docking station device, an integrated system and a communication method. The device comprises a main control module, a protocol conversion module, a power management module, a video processing module, a dynamic bandwidth allocation unit, a plurality of video output interfaces and a peripheral expansion unit. The main control module receives an input video signal and performs shunting, compression and protocol analysis; the protocol conversion module manages interface protocol switching, equipment detection and power supply negotiation; the power management module converts input voltage into multi-stage system voltage and provides a reverse charging function; the video processing module is used for splitting an input video signal into multiple paths of independent video streams and reducing the bandwidth; the dynamic bandwidth allocation unit is used for dynamically adjusting the resolution or refresh rate of the video stream; and the peripheral expansion unit is connected with the low-speed peripheral through the independent data channel. The device supports three paths of 4K and 60Hz synchronous output, has high energy efficiency, intelligent bandwidth management and good compatibility, and is suitable for multi-screen cooperation, industrial control and high-resolution display application scenes.