6results about How to "Increase refresh rate" patented technology

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 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 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.

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.

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.

This invention discloses a display control method, apparatus, and display driving circuit for a display device. The method includes: acquiring a target frame to be processed by the display device; determining, while the display device is scanning the target frame, the target scan line group in which the current scan line of the display device belongs among multiple scan line groups, wherein each scan line group includes at least one scan line of the display device, different scan line groups correspond to different first subfield sequences, the first subfield sequence representing the sequence in which multiple subframes are arranged according to a first preset order when the target frame is divided into multiple subframes; determining, within the first subfield sequence corresponding to the target scan line group, at least one first target subframe to be opened by the display device to display the grayscale of the current scan line; and opening the first target subframe according to its opening time. This invention solves the technical problem that the refresh rate of display devices cannot be effectively improved.