Shaoxing Taiyuan LCD splicing splicing LCD screen Nanping Samsung DID LCD-screen Tonghua liquid ..

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 the liquid crystal material, 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 with the three primary colors filter optical layer, it can achieve the display color images. Works TFT-LCD liquid crystal display TN-LCD and there are many differences. Imaging principle TFT-LCD liquid crystal device is a "back through the style" exposure mode. When the light source, first revealed up through the lower polarizing plate, the liquid crystal molecules by means of conducting light. Since the upper and lower electrodes sandwich into FET electrode and the common electrode, the electrode in the FET is turned on, the same arrangement of the liquid crystal molecules will change, but also through shading and lighting to achieve the purpose of display. But the difference is, since the FET transistor has a capacitive effect, to keep potential state, previously opaque liquid crystal molecules will remain in this state until the next time FET electrode electrically coupled to change the arrangement so far. Wherein two adjacent liquid crystal molecular long axis of the polarizer orientation, consistent with the direction of polarization of the polarizing plate adjacent. Arranged in proximity to an upper portion of the liquid crystal molecules in accordance with the upper portion of the interlayer groove direction are arranged, and the lower portion of the liquid crystal molecules in accordance with the lower portion of interlayer groove direction. Finally packaged into a liquid crystal cell, and the drive IC, control IC connected to the printed circuit board. 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."