Matsubara Baicheng LCD large screen LCD large-screen LCD large screen manufacturers Baishan ..

Sales manager Tel 1 8 8 7 4 7 0 1 9 1 6 QQ 2 7 3 9 1 2 3 7 7 1 "Zhao Xin" In simple terms, the basic principle is that the screen can display between two parallel plates filled liquid crystal materials, liquid crystal display (Fig. 2) by changing the voltage to the internal arrangement of the molecules of the liquid crystal material, in order to achieve the purpose of shading and lighting to show the shades, the patchwork of images, and as long as between the two plates together filter layer on the three primary colors, you can achieve the display color images. Understanding its structure and principle, to understand its technology and process characteristics to be targeted in the purchase, more scientific and reasonable at the time of application and maintenance. LCD is an organic compound, by a long rod-like molecules composed. In its natural state, which is substantially parallel to the long axis of the rod-like molecules. The first feature is the LCD liquid crystal must be poured into the two columns have to work fine groove between the planes. Mutually perpendicular grooves (90 intersect), that is, if the molecule on a plane to the North-South aligned, then another molecule to arrange things on the plane, and is located between the two molecular planes are two planes forced to go into a 90-degree twist state. Since the molecules are arranged along the direction of propagation of light, so the light through the liquid crystal is also sometimes twisted 90 degrees. But when a voltage is applied to the liquid crystal molecules will be re-arranged vertically, so that the light can be directed out, without any twisting. Under normal circumstances, when light is irradiated on the downward, usually only one angle of light can penetrate down through the upper mezzanine polarizer introducing groove, and then reverse the arrangement of passage through the liquid crystal molecules from the polarizer piercing, form a complete light penetration route. The sandwich LCD monitor attached to the two polarizing plates, arranged and transparency point of view these two polarizers are aligned with the vertical trench interlayer same. When a voltage is applied to the liquid crystal layer, due to the impact of external voltage, the LCD will change its initial state, no longer arranged in the normal way, and become erect state. Therefore, the light through the liquid crystal layer is absorbed by the second polarizer and the entire structure presentation opaque state, the result appears black on the display. When the liquid crystal layer is not applied to any voltage, the liquid crystal is in its initial state, the direction of the incident light will twist 90 degrees, so let the incident backlight through the entire structure, the result appears in white on the display. In order to achieve on the panel can produce each individual pixel color you want, a plurality of cold cathode fluorescent lamp must be used to as a display backlight. STN STN is "Super Teisted Nematic" acronym, which belongs to the Passive matrix LCD, almost all black and white screen mobile phone LCD screen are of this material. Color STN LCD color filters is to add a monochrome STN LCD screen, based on the monochrome display matrix and each pixel is divided into three sub-pixels, respectively, through color filters red, green and blue colors, in order to achieve a color picture. Due to technical limitations, the current highest STN LCD only 65,536 kinds of colors, the market saw most of 4096 color STN products, so STN is also known as "pseudo-color."