LCD splicing screen technology

LCD is phase one, is like a liquid can flow , but also has some of the characteristics of the crystal structure of a class of substances, with special physical , chemical and optical properties. Liquid crystal itself does not emit light nor have any color, but the role of the voltage , the molecules corresponding to the angle of deflection will occur , and can drive with the deflection of light incident , the optical properties of this particular since the middle of the 20th century, is widely used in thin lcd module technology.
Structure similar to the LCD screen , " sandwich" , by a function of the type of board layers , films, liquid crystal composition, such as TFT screen , mainly by the fluorescent tube , a light guide plate , a polarizing plate , filter plate , a glass substrate , with the film, the liquid crystal materials , book mode transistors and other components. Liquid crystal is placed perpendicular to the optical axis of the polarizing plate attached two transparent conductive glass , the liquid crystal molecules of the alignment film according to the direction of the thin groove are arranged sequentially rotated . If the electric field is not formed , the light will smoothly from the polarizer into the goal, the incident light by the liquid crystal molecules rotate the direction of travel , then the light emitted from the other side . If the two conductive glass after power will cause the electric field between the glass , thereby affecting the liquid crystal molecules are arranged therebetween , the liquid crystal molecules twist rod , light can not penetrate , and then cover the light.
LCD screen must have a backlight, the incident light to go through the polarizer and then through the TFT Lcd Modules . The arrangement of the liquid crystal molecules will change the angle of light through the liquid crystal , and the light through the color filter film and then another piece of polarizing plate . So as long as the voltage value of the liquid crystal to change stimulus can control the final appearance of the light intensity and color , so you can change out the LCD panel there are different shades of color combinations.