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Monochrome LCD Display Background Light Source

LCD technology is the liquid crystal poured into two rows of slots with a fine groove between. The grooves on the two planes are perpendicular to each other (intersecting 90 degrees). Monochrome LCD Display That is, if a plane is arranged north-south, the molecules on the other plane are arranged in the east-west direction, and the molecules located between the two planes are forced into a 90 degree twist state. As the light travels along the direction of the molecules, so the light through the liquid crystal is also reversed 90 degrees. But when a voltage on the LCD, the molecules will be re-arranged vertically, so that the light can be directed out, without any twisting.

The LCD is dependent on the polarized filter (slice) and the light itself. Natural light is randomly divergent in all directions. Polarization filters are actually a series of increasingly fine parallel lines. These lines form a net that blocks all rays that are not parallel to these lines.Monochrome LCD Display Polarization of the filter line is just perpendicular to the first, so it can completely block those already polarized light. Only two lines of the filter are completely parallel, or the light itself has been twisted to match the second polarized filter, and the light is able to penetrate.

The LCD is dependent on the polarized filter (slice) and the light itself. Natural light is randomly divergent in all directions. Polarization filters are actually a series of increasingly fine parallel lines. These lines form a net that blocks all rays that are not parallel to these lines. Monochrome LCD Display Polarization of the filter line is just perpendicular to the first, so it can completely block those already polarized light. Only two lines of the filter are completely parallel, or the light itself has been twisted to match the second polarized filter, and the light is able to penetrate.

LCD screen from the structure of the structure of the working principle of view, whether it is a laptop or desktop system, using the LCD display is composed of different parts of the layered structure. The LCD is made of two glass plates, about 1 mm thick, separated by a 5 μm uniform interval containing a liquid crystal (LC) material. Monochrome LCD Display Since the liquid crystal material itself does not emit light, so on both sides of the display are provided as a light source of the lamp, and in the back of the LCD screen has a backlight (or light plate) and reflective film, the backlight is composed of fluorescent substances Can emit light, its role is to provide a uniform background light source. The light from the backlight plate enters the liquid crystal layer containing thousands of crystal droplets after passing through the first layer of the polarizing filter layer. Crystal droplets in the liquid crystal layer are contained in a small cell structure, Monochrome LCD Display and one or more cells constitute a pixel on the screen. Between the glass plate and the liquid crystal material is a transparent electrode, Monochrome LCD Display the electrode is divided into rows and columns, at the intersection of rows and columns, by changing the voltage to change the liquid crystal rotation state, the role of liquid crystal material similar to a small light valve. At the periphery of the liquid crystal material is a control circuit portion and a driving circuit portion. When the electrode in the LCD generates an electric field, Monochrome LCD Display the liquid crystal molecules are distorted, so that the light passing through them is regularly refracted and then filtered through the filter of the second layer on the screen.


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