The material of LCD display screen
Dec 26, 2018
LCD display screen uses an organic compound, normally in liquid state, which is composed of the following parts:
(1) horizontal polarizer.
(2) color filter.
Liquid crystal: liquid crystal is a special substance.
TFT glass: the TFT glass panel is actually a million xia FT drive tube and control liquid crystal area lT0(transparent conductive metal composed of a matrix, also known as the array.
vertical polarizer.
Specifically, the LCD screen is made up of two fast white glass referred to as TFT, but not ordinary glass is the glass with electric line, and then inject liquid crystal in the middle, and then stick polarizing plate on the glass, you can display a variety of colors, referred to as LCD tied IC plus FPC circuit board, so you can display.
The layer of soft material on the surface of an LCD screen is called a polarizer (PLZ), which filters light.If you don't have this layer of stuff, you're not going to be able to see anything at all, because the liquid crystal screen, when it works, filters out light in the X direction or the Y direction, and all the parallel light that's left over, if you don't go through the polarization of the polaroid, you're not going to be able to see anything with the naked eye.Polarizer is a kind of soft and thin material, if there are scratches, stab wounds, abrasions, in the production is not good, so be careful when using.
LCD display is a flat ultra-thin display device, it consists of a certain number of color or black and white pixels, placed in front of the light source or reflection.Its main principle is to stimulate the liquid crystal molecules to produce a point, line, surface with the back light tube to form a picture.Special qualities is that if applying an electric field to the LCD, can change its molecular arrangement, then if you give it with polarized light, it will have a stop light through a role (without applying an electric field, the light can be smoothly through), if combined with color filters, change to the LCD voltage size, can change a color how much the amount of light, also can change that image to light transmittance of voltage at the ends of the LCD can change it (but in practice it must be with polarizing film).
