Abstract: A cross-coupling control method for moving beam of gantry machine tool is disclosed, which relates to the technical field of CNC machine tool control. The cross-coupling control method includes: Step 1: establishing a crossbeam dynamics model considering a ram on the crossbeam, and at the same time simplifying the model for an observer design; step 2: realizing a PID control parameter adjustment of motors at both ends in accordance with a method of parameter tuning of a unilateral servo control system; using a servo system with the same control parameters to jointly drive the crossbeam up and down, realizing the synchronous control and realizing PID control parameter tuning for both end motors. The disclosure not only reduces the synchronization error caused by the torsion of the crossbeam, but also solves the synchronization error caused by the asymmetric load on both sides, and improves the system robustness and stability.

Abstract: The present disclosure relates to a data transmission method and device, a display screen, and a display device, and belongs to the application field of display technology. The method is applicable to a first drive chip in a display device that includes a controller, a plurality of drive chips and a data acquisition apparatus. The first drive chip is one of the plurality of drive chips and connected to the controller and the data acquisition apparatus respectively. The method includes: receiving component-related data acquired by the data acquisition apparatus; and sending backhaul data to the controller, the backhaul data including the component-related data. The present disclosure solves the problem of function singleness of the drive chip. The present disclosure is applicable to drive and control the display device.

Abstract: A data transmission method, a chip, a controller, and a display device. The method is applied to a target driving chip in the display device. The display device includes a controller (01), a plurality of driving chips (02), and an in-cell touch display panel (03). The target driving chip is one of the plurality of driving chips (02). The target driving chip is respectively connected to the controller (01) and the in-cell touch display panel (03). The method includes: receiving state data acquired by the in-cell touch display panel, the state data being configured to reflect a working state of the in-cell touch display panel; and sending return data to the controller, the return data including the state data which includes control data.

Abstract: The present disclosure relates to a data transmission method and device, a display screen, and a display device, and belongs to the application field of display technology. The method is applicable to a first drive chip in a display device that includes a controller, a plurality of drive chips and a data acquisition apparatus. The first drive chip is one of the plurality of drive chips and connected to the controller and the data acquisition apparatus respectively. The method includes: receiving component-related data acquired by the data acquisition apparatus; and sending backhaul data to the controller, the backhaul data including the component-related data. The present disclosure solves the problem of function singleness of the drive chip. The present disclosure is applicable to drive and control the display device.

Abstract: The present disclosure relates to a data transmission method and device, a display screen, and a display device, and belongs to the application field of display technology. The method is applicable to a first drive chip in a display device that includes a controller, a plurality of drive chips and a data acquisition apparatus. The first drive chip is one of the plurality of drive chips and connected to the controller and the data acquisition apparatus respectively. The method includes: receiving component-related data acquired by the data acquisition apparatus; and sending backhaul data to the controller, the backhaul data including the component-related data. The present disclosure solves the problem of function singleness of the drive chip. The present disclosure is applicable to drive and control the display device.

Abstract: A data transmission method, a chip, a controller, and a display device. The method is applied to a target driving chip in the display device. The display device includes a controller (01), a plurality of driving chips (02), and an in-cell touch display panel (03). The target driving chip is one of the plurality of driving chips (02). The target driving chip is respectively connected to the controller (01) and the in-cell touch display panel (03). The method includes: receiving state data acquired by the in-cell touch display panel, the state data being configured to reflect a working state of the in-cell touch display panel; and sending return data to the controller, the return data including the state data which includes control data.

Abstract: The present invention discloses a laser beam combination apparatus, comprising: a water cooling plate, a beam combiner and two laser arrays; each of the laser arrays comprises N lasers, wherein N is a positive integer more than 1; the two laser arrays are fixed on an upper surface and a lower surface of the water cooling plate, respectively; and the beam combiner performs a spatial beam combination, a polarization beam combination or a wavelength beam combination of laser beams output from the two laser arrays.

Abstract: The present invention discloses a laser beam combination apparatus, comprising: a water cooling plate, a beam combiner and two laser arrays, each of the laser arrays comprises N lasers, wherein N is a positive integer more than 1; the two laser arrays are fixed on an upper surface and a lower surface of the water cooling plate, respectively; and the beam combiner performs a spatial beam combination, a polarization beam combination or a wavelength beam combination of laser beams output from the two laser arrays.

Abstract: A laser beam combination apparatus includes: a lasers array, an optical turning element, a transformation lens, a dispersion element and an external cavity mirror.