How monochrome LCD screens work
How monochrome LCD screens work
The monochrome liquid crystal has TN/HTN/STN/FSTN pen segment type, dot matrix liquid crystal display (LCD), BLACK MASK black film multicolor display, and liquid crystal display module module (LCM).
The LCD is dependent on the polarizing filter (slice) and the light itself. Natural light is randomly scattered in all directions. Polarization filters are actually a series of increasingly thin parallel lines. These lines form a net that blocks all light that is not parallel to these lines. The line of the polarizing filter is exactly perpendicular to the first one, so it can completely block the light that has been polarized. Only when the lines of the two filters are completely parallel, or the light itself has been twisted to match the second polarizing filter, the light is penetrated.
LCD technology is to fill the liquid crystal between two planes with fine grooves. The grooves in the two planes are perpendicular to each other (intersecting at 90 degrees). That is to say, if the molecules on one plane are arranged in the north-south direction, 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 state of 90-degree twist. Since the light propagates along the direction of the molecules, the light is also twisted by 90 degrees when it passes through the liquid crystal. However, when a voltage is applied to the liquid crystal, the molecules are vertically aligned so that the light can be directly emitted without any twisting.
The LCD is composed of such two mutually perpendicular polarizing filters, so that all attempts to penetrate light should be blocked under normal conditions. However, since the two filters are filled with twisted liquid crystals, after the light passes through the first filter, it is twisted by the liquid crystal molecules by 90 degrees, and finally passes through the second filter. On the other hand, if a voltage is applied to the liquid crystal, the molecules are rearranged and completely parallel, so that the light is no longer twisted, so it is just blocked by the second filter. In short, power is applied to block light, and light is emitted without power.
However, it is possible to change the arrangement of the liquid crystals in the LCD so that the light is emitted when it is powered on, and is blocked when it is not powered. However, since the computer screen is almost always on, only the "power on light blocking" scheme can achieve the most power-saving purposes.
From the perspective of the LCD monitor display, whether it is a laptop or a desktop system, the LCD display is a layered structure composed of different parts. The LCD consists of two glass plates, which are about 1 mm apart, separated by a 5 um even interval containing liquid crystal (LC) material. Because the liquid crystal material itself does not emit light, there is a light pipe as a light source on both sides of the display screen, and a backlight plate (or a light homogenizing plate) and a reflective film on the back of the liquid crystal display screen, the backlight plate is composed of a fluorescent substance. Light can be emitted, the main function of which is to provide a uniform background light source. The light emitted by the backlight enters the liquid crystal layer containing thousands of crystal droplets after passing through the first polarizing filter layer. The crystal droplets in the liquid crystal layer are all contained in a small cell structure, and one or more cells constitute one pixel on the screen. Between the glass plate and the liquid crystal material is a transparent electrode, the electrode is divided into rows and columns, at the intersection of the rows and columns, by changing the voltage to change the optical state of the liquid crystal, the liquid crystal material acts like a small light valve. Around the liquid crystal material are a control circuit portion and a drive circuit portion. When the electrodes in the LCD generate an electric field, the liquid crystal molecules are distorted, and the light passing through them is regularly refracted, and then filtered through the second layer of the filter layer to be displayed on the screen.
If you are interested in our products, please contact us.（http://www.sino-lcd.com/）
The monochrome liquid crystal has TN/HTN/STN/FSTN pen segment type, dot matrix liquid crystal display (LCD), BLACK MASK black film multicolor display, and liquid crystal display module module (LCM).
The LCD is dependent on the polarizing filter (slice) and the light itself. Natural light is randomly scattered in all directions. Polarization filters are actually a series of increasingly thin parallel lines. These lines form a net that blocks all light that is not parallel to these lines. The line of the polarizing filter is exactly perpendicular to the first one, so it can completely block the light that has been polarized. Only when the lines of the two filters are completely parallel, or the light itself has been twisted to match the second polarizing filter, the light is penetrated.
LCD technology is to fill the liquid crystal between two planes with fine grooves. The grooves in the two planes are perpendicular to each other (intersecting at 90 degrees). That is to say, if the molecules on one plane are arranged in the north-south direction, 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 state of 90-degree twist. Since the light propagates along the direction of the molecules, the light is also twisted by 90 degrees when it passes through the liquid crystal. However, when a voltage is applied to the liquid crystal, the molecules are vertically aligned so that the light can be directly emitted without any twisting.
The LCD is composed of such two mutually perpendicular polarizing filters, so that all attempts to penetrate light should be blocked under normal conditions. However, since the two filters are filled with twisted liquid crystals, after the light passes through the first filter, it is twisted by the liquid crystal molecules by 90 degrees, and finally passes through the second filter. On the other hand, if a voltage is applied to the liquid crystal, the molecules are rearranged and completely parallel, so that the light is no longer twisted, so it is just blocked by the second filter. In short, power is applied to block light, and light is emitted without power.
However, it is possible to change the arrangement of the liquid crystals in the LCD so that the light is emitted when it is powered on, and is blocked when it is not powered. However, since the computer screen is almost always on, only the "power on light blocking" scheme can achieve the most power-saving purposes.
From the perspective of the LCD monitor display, whether it is a laptop or a desktop system, the LCD display is a layered structure composed of different parts. The LCD consists of two glass plates, which are about 1 mm apart, separated by a 5 um even interval containing liquid crystal (LC) material. Because the liquid crystal material itself does not emit light, there is a light pipe as a light source on both sides of the display screen, and a backlight plate (or a light homogenizing plate) and a reflective film on the back of the liquid crystal display screen, the backlight plate is composed of a fluorescent substance. Light can be emitted, the main function of which is to provide a uniform background light source. The light emitted by the backlight enters the liquid crystal layer containing thousands of crystal droplets after passing through the first polarizing filter layer. The crystal droplets in the liquid crystal layer are all contained in a small cell structure, and one or more cells constitute one pixel on the screen. Between the glass plate and the liquid crystal material is a transparent electrode, the electrode is divided into rows and columns, at the intersection of the rows and columns, by changing the voltage to change the optical state of the liquid crystal, the liquid crystal material acts like a small light valve. Around the liquid crystal material are a control circuit portion and a drive circuit portion. When the electrodes in the LCD generate an electric field, the liquid crystal molecules are distorted, and the light passing through them is regularly refracted, and then filtered through the second layer of the filter layer to be displayed on the screen.
If you are interested in our products, please contact us.（http://www.sino-lcd.com/）
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