Abstract: An apparatus for producing anti-glare surfaces includes an etching cream dipping tank and a sub-tank arranged to receive a slurry of etching cream. A pumping unit is fluidly coupled to the etching cream dipping tank and the sub-tank such that the pumping unit is operable to selectively self-circulate the slurry of etching cream in the sub-tank to improve homogeneity of the etching cream and transfer a volume of the homogenized etching cream from the sub-tank to the etching cream dipping tank.

Abstract: A method for increasing the tactile feel of a glass-ceramic article includes (a) performing a first etching of a surface of the glass-ceramic article with a first etchant to create a plurality of features on the surface, wherein the first etchant comprises hydrofluoric acid and an inorganic fluoride salt, and the plurality of features comprises protrusions and recesses and (b) performing a second etching of the surface with a second etchant different from the first etchant to enlarge a distance between adjacent features of a same type, wherein the second etching occurs after the first etching, after the second etching an average distance between adjacent features of a same type is in a range from 0.5 ?m to 20 ?m and a density of features of the same type is in a range from 9,000 to 25,000 features/mm2, and a tactile feel of the surface after the second etching is greater than the tactile feel of the surface before the first etching.

Abstract: The present disclosure discloses a method of manufacturing a nanowire grid polarizer, including: sequentially laminating a first wire grid material layer, a second wire grid material layer and a third wire grid material layer on a substrate; disposing a nano photoresist array on the third wire grid material layer; etching the third wire grid material layer which is not covered by the nano photoresist array by dry-etching; etching the second wire grid material layer which is not covered by the nano photoresist array by wet-etching; etching the first wire grid material layer which is not covered by the nano photoresist array by dry-etching; and removing the nano photoresist array to obtain the nanowire grid polarizer.

Abstract: This application is directed to a compact voice-activated electronic device with speakers and electronic components and a dual waveguide/heatsink structure configured to direct sound from the speakers to the outside of the device and to dissipate to the outside of the device heat from the electronic components.

Abstract: Embodiments of anti-glare substrates and articles including the same are disclosed. In one or more embodiments, the anti-glares substrate includes a textured surface with a plurality of features having an average cross-sectional dimension of about 30 micrometers or less. The substrate or article exhibits a transmission haze of 10% or less, a PPDr of about 7% or less or 6% or less, and a DOI of about 80 or less. Method for forming the anti-glare substrates are also disclosed and include etching a surface of a substrate with an etchant having low water solubility to provide an etched surface, and removing a portion of the etched surface. The method includes generating a plurality of insoluble crystals (e.g., any one or more of K?2#191SiF?6#191 and K?3#191AlF?6#191) on the surface while etching the surface. The etchant may include a potassium salt, an organic solvent and a fluoride containing acid.

Abstract: A method for increasing the tactile feel of a glass-ceramic article includes (a) performing a first etching of a surface of the glass-ceramic article with a first etchant to create a plurality of features on the surface, wherein the first etchant comprises hydrofluoric acid and an inorganic fluoride salt, and the plurality of features comprises protrusions and recesses and (b) performing a second etching of the surface with a second etchant different from the first etchant to enlarge a distance between adjacent features of a same type, wherein the second etching occurs after the first etching, after the second etching an average distance between adjacent features of a same type is in a range from 0.5 ?m to 20 ?m and a density of features of the same type is in a range from 9,000 to 25,000 features/mm2, and a tactile feel of the surface after the second etching is greater than the tactile feel of the surface before the first etching.

Abstract: A method of manufacturing a nano metal grating is provided. In the method, a patterned metal oxide film is formed on a surface of the metal layer through the formation of metal oxides in an oxygen ashing process, and the nano metal grating is manufactured by using the patterned metal oxide film as a mask. Thus, a drawback that the metal layer cannot be etched after the metal layer is oxidized is solved, and the metal oxide film is not only used as a mask to manufacture the nano metal grating, but the metal oxide film is also used as a protective layer of the nano metal grating.

Abstract: The present application discloses a battery unit maintenance system for charging a plurality of batteries. The battery unit maintenance system includes a charging module having a first mating connector and a plurality of battery docking ports, each docking port configured to operatively connect to one of the plurality of batteries. The battery unit maintenance system also includes a processor configured to send information to and receive information from the batteries when the batteries are retained in the charging module. The battery unit maintenance system further includes an accessory portion having a second mating connector and a power connector, the second mating connector configured to releasably mate with the first mating connector.

Abstract: A device for purifying first-stage drainage effluents from dry croplands, the device including: a) a plastic corrugated pipe including an upright segment and a horizontal segment, the upright segment comprising plastic mesh openings; b) a steel wire mesh box filled with stuffing pellets including biological carriers; and an inspection cover. The plastic mesh openings are disposed at one end of the upright segment, the other end of the upright segment is connected to one end of the horizontal segment, and the other end of the horizontal segment is connected to the steel wire mesh box. The upper surface of the upright segment of the plastic corrugated pipe is lower than the upper surface of the field ditch, and the lower edge of the plastic mesh openings is higher than the bottom surface of the field ditch.

Abstract: The present disclosure discloses a method of manufacturing a nanowire grid polarizer, including: sequentially laminating a first wire grid material layer, a second wire grid material layer and a third wire grid material layer on a substrate; disposing a nano photoresist array on the third wire grid material layer; etching the third wire grid material layer which is not covered by the nano photoresist array by dry-etching; etching the second wire grid material layer which is not covered by the nano photoresist array by wet-etching; etching the first wire grid material layer which is not covered by the nano photoresist array by dry-etching; and removing the nano photoresist array to obtain the nanowire grid polarizer.

Abstract: The present disclosure provides a method of manufacturing a nanowire grid polarizer, including the steps as follows: S1, providing a nanoimprint mold and filling the nanoimprint mold by using a photoresist material to obtain a nanoimprint component; S2, pairing the nanoimprint component and a conductive substrate to cure the photoresist material on a surface of the conductive substrate, removing the nanoimprint mold and forming a nano photoresist array on the surface of the conductive substrate; wherein the nano photoresist array has a first void array therebetween; and S3, depositing a metal in the first void array by using an electrodeposition method and removing the nano photoresist array, and forming a nanowire grid on the surface of the conductive substrate to obtain the nanowire grid polarizer.

Abstract: The present invention provides an alignment method of an FFS liquid crystal display panel. The method includes adding a light-sensitive small-molecule compound in a rubbing alignment material, carrying out rubbing alignment after formation of an alignment film, and afterwards, conducting boxing of the FFS liquid crystal display panel, and then applying an electrical voltage to cause liquid crystal molecules to rotate to a position substantially parallel to a substrate, and carrying out UV irradiation to cause polymerization of the light-sensitive small-molecule compound to form polymer bumps so as to keep the liquid crystal molecules in parallel to the substrate. The liquid crystal molecules, after the alignment, show a pre-tilt angle having a zero angle value and can, under the condition of providing a strong anchoring force of the alignment film, reduce the pre-tilt angle of the liquid crystal molecules and improve quality of displaying of the FFS liquid crystal display panel.

Abstract: Methods of modifying glass-ceramic articles and glass-ceramic articles formed therefrom. The methods include providing a glass-ceramic article having a non-damaged surface, applying a chemical etching solution to the non-damaged surface, and removing the chemical etching solution. The chemical etching solution modifies the non-damaged surface so that from about 0.01 ?m to about 2 ?m of a depth of the glass-ceramic article is removed. The chemical etching solution modifies the non-damage surface of the glass-ceramic article to form a roughened surface having a reduced gloss value and a target roughness value.

Abstract: Methods of modifying glass-ceramic articles and glass-ceramic articles formed therefrom. The methods include providing a glass-ceramic article having a non-damaged surface, applying a chemical etching solution to the non-damaged surface, and removing the chemical etching solution. The chemical etching solution modifies the non-damaged surface so that from about 0.01 ?m to about 2 ?m of a depth of the glass-ceramic article is removed. The chemical etching solution modifies the non-damage surface of the glass-ceramic article to form a roughened surface having a reduced gloss value and a target roughness value.

Abstract: This application is directed to a compact voice-activated electronic device with speakers and electronic components and a dual waveguide/heatsink structure configured to direct sound from the speakers to the outside of the device and to dissipate to the outside of the device heat from the electronic components.

Abstract: Described herein are aqueous acidic glass etching solutions or media comprising HF and H2SO4, wherein HF is present in concentrations not exceeding about 1.3M. The etching solutions are used to treat glass articles such as thin glass sheets at above-ambient temperatures to etch slight thicknesses of surface glass therefrom, the etching solutions exhibiting improved stability against dissolved glass precipitation and rapid glass removal rates at slightly elevated temperatures.

Abstract: An apparatus for producing anti-glare surfaces includes an etching cream dipping tank and a sub-tank arranged to receive a slurry of etching cream. A pumping unit is fluidly coupled to the etching cream dipping tank and the sub-tank such that the pumping unit is operable to selectively self-circulate the slurry of etching cream in the sub-tank to improve homogeneity of the etching cream and transfer a volume of the homogenized etching cream from the sub-tank to the etching cream dipping tank.