Abstract: A light emitting diode, a light emitting device, and a manufacturing method for the light emitting diode are provided. The light emitting diode includes: a substrate having an upper surface and a lower surface opposite to each other; a semiconductor epitaxial stack including a first semiconductor layer, an active layer, and a second semiconductor layer stacked on the upper surface of the substrate; a transparent conductive layer disposed on an upper surface of the second semiconductor layer away from the substrate; a sidewall formed on edges of the semiconductor epitaxial stack and the substrate; and a passivation layer covering a surface of the transparent conductive layer and connected to the sidewall, wherein a portion of the sidewall not covered by the passivation layer has a roughened structure, and the roughened structure includes a protrusion.

Abstract: A method of repairing a display defect in a display panel includes: in a module process stage, inputting a first data voltage to each pixel in the display panel, enabling the display panel to display an image to be detected, and acquiring a brightness of each pixel; determining a reference pixel and a defect pixel according to the image to be detected; calculating a compensation data voltage for the defect pixel according to a brightness difference between the reference pixel and the defect pixel; and inputting the first data voltage to the reference pixel, and inputting a second data voltage to the defect pixel, according to the compensation data voltage, where the second data voltage is a sum of the first data voltage and the compensation data voltage.

Abstract: Disclosed are an electrostatically driven comb structure of an MEMS (Micro Electro Mechanical System), a micro-mirror using the same, and a preparation method therefor.

Abstract: Disclosed are an electrostatically driven comb structure of an MEMS (Micro Electro Mechanical System), a micro-mirror using the same, and a preparation method therefor.

Abstract: Disclosed are an automatic welding system and method for large structural parts based on hybrid robots and 3D vision. The system comprises a hybrid robot system composed of a mobile robot and an MDOF robot, a 3D vision system, and a welding system used for welding. The rough positioning technique based on a mobile platform and the accurate recognition and positioning technique based on high-accuracy 3D vision are combined, so the working range of the MDOF robot in the XYZ directions is expanded, and flexible welding of large structural parts is realized. The invention adopts 3D vision, thus having better error tolerance and lower requirements for the machining accuracy of workpieces, positioning accuracy of mobile robots and placement accuracy of the workpieces; and the cost is reduced, the flexibility is improved, the working range is expanded, labor is saved, production efficiency is improved, and welding quality is improved.

Abstract: Disclosed are an automatic welding system and method for large structural parts based on hybrid robots and 3D vision. The system comprises a hybrid robot system composed of a mobile robot and an MDOF robot, a 3D vision system, and a welding system used for welding. The rough positioning technique based on a mobile platform and the accurate recognition and positioning technique based on high-accuracy 3D vision are combined, so the working range of the MDOF robot in the XYZ directions is expanded, and flexible welding of large structural parts is realized. The invention adopts 3D vision, thus having better error tolerance and lower requirements for the machining accuracy of workpieces, positioning accuracy of mobile robots and placement accuracy of the workpieces; and the cost is reduced, the flexibility is improved, the working range is expanded, labor is saved, production efficiency is improved, and welding quality is improved.