4 results about "Violet light" patented technology

The invention provides a preparation method for a colorful vanadium dioxide thermal stained glass on a glass substrate, which is characterized in that the following steps are sequentially included: (a) the glass substrate is washed and dried by a lotion or a solvent; (b) the glass substrate is put in a thin film deposition chamber and heated to 300-600 DEG C, (c) working gas is inlet; (d) magnetron sputtering preparation process is adopted to lead the vanadium dioxide to form film; (e) the film forming thickness is controlled to obtain vanadium dioxide coated glass with different reflection colors. By accurately controlling the thickness of the film, the preparation method can cause the reflection color of the glass to present the colors of light blue violet, blue violet, nattierblue, yellow or pink, etc. The colors can not only lead the vanadium dioxide thermal stained glass to have the purposes of high efficiency and energy conservation, but also decorate the appearance of the buildings to perform the role of beautifying the environment.

An embodiment of the invention discloses a cover plate, a preparation method thereof and a display device. The cover plate comprises a glass substrate and a filter film, wherein the filter film is arranged on the glass substrate and used for preventing blue-violet light on the side of the glass substrate from penetrating through the cover plate. According to the cover plate, the filtering function of the filter film is utilized, blue-violet light in external light is prevented from penetrating through the cover plate and entering an OLED display panel, the risk that the blue-violet light in the external light irradiates a blue light-emitting material of the OLED display panel, and consequently the blue light-emitting material is damaged is avoided, the blue light-emitting material is protected, the light emitting quality of the OLED display panel is protected, and the service life of the OLED display panel is prolonged.

The invention relates to the technical field of luminescent materials. A green zincate fluorescent powder has a chemical formula as follows M3Zn2-XO8: xMn2+, M is any one of Si, Ge, Ti, Zr, Sn and Te, and x is 0.001-0.1. The green zincate fluorescent powder has the advantage that more expensive rare earth elements are not contained, the powder has a wide excitation bandwidth having ultraviolet, violet light and blue light zones, emission peak overlapping with an ultraviolet chip is good, and the powder can be effectively excited.

The invention provides a method for regulating and controlling light-emitting characteristics of a cerium-doped aluminum nitride material. By changing the concentration of oxygen impurities in the cerium-doped aluminum nitride material and changing the light-emitting color of the material within a visible light range, continuous change of visible light of different colors is achieved on a same substrate, and the problems that different substrate materials are used in existing white light synthesis, all the materials possibly react with one another, the cost is high, and the finished product isunstable are solved. The invention further relates to a method for preparing the aluminum nitride material, the content of oxygen impurities in the prepared cerium-doped aluminum nitride can be effectively and accurately controlled, the light-emitting range of the cerium-doped aluminum nitride obtained through the preparation method is from blue-violet light to red light, and the light-emitting range covers the whole visible light area.