6results about How to "Low refractive index" patented technology

The laser chip and its fabrication method disclosed herein include a first reflective layer, an active region, an oxide layer, and a second reflective layer sequentially disposed on a substrate. The laser chip has a first trench and a second trench for oxidizing and etching the oxide layer. A first connecting portion connects one end of the first trench to one end of the second trench, and a second connecting portion connects the other end of the first trench to the other end of the second trench. Due to the influence of crystal anisotropy on the oxidation rate, and the mutual coordination of the first and second connecting portions on the oxidation rate, the oxide aperture includes a first oxide arc, a second oxide arc, a third oxide arc, and a fourth oxide arc. The first and second oxide arcs are arranged opposite each other, as are the third and fourth oxide arcs. The third and fourth oxide arcs have different radii of curvature, forming a specific irregular morphology. The oxide aperture based on the irregular morphology can effectively suppress transverse multimode lasing of the optical signal and reduce mode degeneracy.

This invention belongs to the field of coating technology, specifically relating to a super-reflective photovoltaic enhancement coating, its preparation method, and its application. The coating raw materials include water-based acrylic resin, filler, titanium dioxide, dispersant, defoamer, and leveling agent; wherein the filler includes barium sulfate and / or core-shell particles, and the barium sulfate includes at least one of nano-sized barium sulfate, submicron-sized barium sulfate, micron-sized barium sulfate, and modified barium sulfate. The preparation method involves: adding the filler to deionized water, adding the dispersant, and dispersing; adding the water-based acrylic resin and stirring; adding titanium dioxide, defoamer, and leveling agent to adjust the fineness; adjusting the viscosity; and filtering to obtain the super-reflective photovoltaic enhancement coating. The coating is applied to photovoltaic modules. This invention's coating has the advantages of high reflectivity, full-band coverage, low cost, and stable performance.

The application provides a multi-chamber wafer transfer control method and system based on an FCVD device, and an electronic device. The control method comprises: obtaining a film state characteristic value of a target wafer; the film state characteristic value characterizes a state of the target wafer after a precursor film layer thereof is self-deposited and continuously evolves over time; the target wafer is a wafer in a waiting transfer state after a front-end deposition is completed; based on the film state characteristic value, a film state change trend of the target wafer when entering multiple candidate chambers at a candidate transfer time is predicted; based on the film state change trend of the target wafer and an available state of each candidate chamber, a transfer priority of the target wafer is determined; a target chamber and a transfer time are determined in the multiple candidate chambers according to the transfer priority; and an actuator of the FCVD device is controlled to transfer the target wafer to the target chamber at the transfer time.

The present disclosure provides a reflective display panel, a manufacturing method and a display device. The reflective display panel comprises a first substrate and a second substrate arranged oppositely, and a structure layer of electrorheological fluid, a first electrode layer and a second electrode layer between the first substrate and the second substrate. The structure layer of electrorheological fluid comprises insulating oil and metal particles in the insulating oil. The first electrode layer and the second electrode layer are configured to form an electric field in the structure layer of electrorheological fluid, and the direction of the electric field is parallel to the first substrate. A lens layer is arranged on one side of the first substrate close to the second substrate. When the first electrode layer and the second electrode layer are powered, the refractive index of the structure layer of electrorheological fluid is less than the refractive index of the lens layer, and the light incident from the side of the first substrate away from the second substrate to the lens layer is reflected back by the lens layer.

This invention relates to the field of functional film preparation technology, specifically to a method for preparing a wear-resistant, stain-resistant, transparent, and slip-resistant film, comprising a wear-resistant and hardening primer, a slip-resistant and transparent intermediate layer, and a wear-resistant and stain-resistant topcoat. The wear-resistant and hardening primer comprises hydroxyethyl acrylate modified amino resin, polyurethane oligomer, trimethylolpropane triacrylate, 1,6-hexanediol diacrylate, a mixed solvent, KH560 silane coupling agent, nano-alumina, polytetrafluoroethylene micropowder, photoinitiator 1173, silicone leveling agent, and isocyanate curing agent. The mixed solvent is composed of ethyl acetate and ethanol. This invention employs a three-layer synergistic coating system, significantly improving the bonding stability between the coating and the substrate, as well as between the coating layers, through functional differentiation design and interface optimization of the primer, intermediate layer, and topcoat.

This invention relates to the field of optical functional thin film technology, and discloses a coating solution and an antireflective film. The coating solution comprises, by volume, the following components: 1-3 parts of a hollow silica nanoparticle dispersion with a solid content of 15-25%; 3-5 parts of silica sol; 1-3 parts of a film-forming aid; and 8-12 parts of an aqueous solution of an organic temporary binder with a solid content of 0.05-0.2%. In this invention, by combining the hollow particle framework responsible for optical performance with the silica sol binder responsible for mechanical strength, and supplementing it with process control components such as the organic temporary binder and film-forming aid, an antireflective film that maintains a low refractive index while possessing good mechanical strength, adhesion, and durability can be prepared. The effective refractive index of the antireflective film can be controlled between 1.20 and 1.35 by adjusting the formulation ratio, achieving a good match with the refractive indices of air and the optical substrate. The antireflective film of this invention maintains a low refractive index and broadband antireflective performance while also possessing good mechanical strength, adhesion, and environmental stability.