3679 results about "UV curing" patented technology

The invention relates to a gel pad and a uv-curing production method thereof. This invention, including the gel bag, is characterized in that the gel bag is filled with gel which is prepared from gel monomers, a cross-linking agent and a photoinitiatorandwater prepared from the UV curving. The gel consists of monomers, cross-linking agents, cross-linking agents, photo initiators and water. The said monomer are two or more than two of an acrylic acid alkali metal salt, ester generated by methacrylic acid ,acrylamide ,methacrylamide and AMPS(2-acrylamide-2-methyl-propanesulfonic acid ). The said cross-linking agent is a non-conjugated double bond compound which is polyol(glycerol )N,N'-methylene bisacrylamide. The said photoinitiator is a cracking type initiator or a photosensitive initiator or a cationic initiator. The advantages of the method are that the production process is simple, the gel solidification is fast and the gel pad produced is flattened.

A liquid crystal display panel includes a counter substrate having a counter electrode and a multi-layered dielectric film both formed thereon, and an array substrate formed with pixel electrodes and thin-film transistors serving as switching elements. A layer of polymer dispersed liquid crystal material containing a UV-curable resin component and a liquid crystal component is sandwiched and sealed between the counter and array substrates. A light shielding film is formed over each thin-film transistor. The multi-layered dielectric film is a laminated structure of alternating thin-films of SiO2 and HfO2. Since the multi-layered dielectric film is of a nature capable of transmitting UV-rays of light therethrough, the UV-curable resin component positioned underneath the multi-layered dielectric film can be cured during the manufacture. Also, since the multi-layered dielectric film is of a nature capable of reflecting light of a visible region, it serves as a black matrix, reflecting the visible light modulated by the display panel. Black beads are used to keep the film thickness of the liquid crystal layer at a predetermined value. Preferably, a dielectric thin-film having a relative dielectric constant smaller than that of the liquid crystal material is formed on signal lines for transmitting signals to the thin-film transistors, to thereby accomplish an electromagnetic shield. Where color filters are to be formed on the pixel electrodes, those color filters may be formed on the signal lines to accomplish the electromagnetic shield.

A method and apparatus for printing a product, article or other object at a printing station and for enhancing the application of UV light to UV photo initiators in a UV curable ink being applied to a product, article or other object at the printing station, comprising the steps for: printing a UV-curable ink with a printing head of a printer on a substrate, product, article or other object at a printing station; providing a primary light source of UV light preferably comprising at least one set of UV-LED arrays of UV-LED chips adjacent the printing head; and partially curing the ink dots by emitting light on the ink dots from the primary light source to set and partially polymerize, coalesce, coagulate and / or gel the ink dots so as to substantially inhibit the growth of the ink dots and prevent, running or smudging of the ink dots. The curing of the ink dots are completed by emitting light on the ink dots from a secondary light source, such as from one or more fluorescent lamps.