Electroluminescent powder

Description

Electroluminescence (EL) is the energy level transition of electrons in electrofluorescent materials under the action of AC electric field. When the electrons return from the excited state to the ground state, they appear as electroluminescence. Electroluminescence (EL) phosphor is mainly used in the production of cold light and cold light (chasing light), an inorganic powder luminescent material that converts electrical energy directly into light energy, and its luminous color is mainly blue, green, orange, and the transition color of the above colors. Electrophosphor has been widely used in electronic products, Mp3, mobile phones, film switches, liquid crystal backlight, automobile, ship, medical equipment and aircraft instrumentation backlight; Marker light, fluorescent line; Advertising, building decoration, luminous gifts, advertising.  1, chemical formula: ZnS:(doped Cu, Mn… Such as metal ions), is non-toxic, no radioactivity, powder insoluble in water; 2, the recommended voltage is: AC 20v ~110v, frequency: 400HZ, customer adjustment; 3, normal production can not contain water vapor (or water), because water will affect the service life in the power; 4, in addition, the packaging film should be dense, otherwise it will be breathable and easy to enter the water, it is best to use glass packaging life will be longer.

About EL phosphor film production
First, the raw material
1, EL phosphor;2, Silver;  3, EL phosphor dedicated barium titanate powder;
4, EL phosphor special adhesive glue (A / B plastic);
5, conductive glass (or conductive film); 6, packaging films.
Second, the process
1, EL phosphor drying temperature at 80 degrees;
2, configure phosphor slurry: EL phosphor in proportion with the adhesive glue stirring, to bubble, as required by controlling the viscosity;
3, the phosphor screen printed conductive glass paste (or conductive film), as required to control the thickness;  4, the carrier drying phosphor;
5. Configure barium titanate slurry ratio in accordance with the requirements of control, viscosity, to bubble;
6, the upper screen printed with phosphor carrier barium titanate paste thickness control;
7, drying over carrier;  8, screen paste, as required to control the viscosity and print thickness of the slurry;  9, drying  10, welding lug;   11, testing;  12.Package  13, detection