2013年8月6日星期二

LCD universal basis

The era of ultra-thin flat panel display
Used in television CRT (cathode ray tube) has a large volume and weight, size constraints and other shortcomings. With the development of electronic technology, the requirement for more and more mobile display, CRT's inherent limitations, allowed miniaturization, mobility ideal hindered. This makes developing a new generation of display technology becomes more is necessary! A new generation of display emphasizes several points: plane at right angles, the screen display is not deformed, light, small energy consumption, easy to carry and at the same video signal with the existing technical compatibility. Currently it comes to ultra-thin display technology, the most popular application when it is Character LCD Modules, and covered the digital cameras, notebook computers, PDA, etc., need to display complex information in electronic products altogether without it. TFT LCD technology but also contains, low-temperature polycrystalline silicon TFT LCD, reflective TFT Lcd Modules, etc., a number of different display technologies

Describes the physical properties of the liquid crystal, it must first understand a direction generally a crystalline solid, and the liquid crystal material of this particular, not only the direction of a general crystalline solid, but also has the mobility of the liquid. Solid crystals must be rotated to change the direction of the entire crystal, changing the liquid crystal NA would not bother, it's directionality can be controlled by electric or magnetic fields.

Changing the direction of the liquid crystal composition as the liquid crystal are different from the conventional liquid crystal and the electric field parallel to the low potential, so that when the applied electric field toward the direction of rotation when the relative, but also a liquid crystal is perpendicular to the electric potential than the corresponding low. Since the liquid crystal to the applied force (electric or magnetic field sensitive), which presents a directional effect, but also led to the incident when the light when the LCD, liquid crystal molecules are bound to the arrangement in accordance with the road, resulting in a natural deflection is like.
Part of the electronic structure of the liquid crystal molecules, there is a strong electron conjugated athletic ability, so when the liquid crystal molecules by the applied electric field, the polarization can easily be induced dipole (induced dipolar), which is the liquid crystal molecules interaction between a source of strength. The general electronic products in a liquid crystal display, that is the use of a liquid crystal electro-optical effect, with an external voltage control, and through the refractive properties of the liquid crystal molecules, and the rotation ability of light to obtain bright and dark conditions, and then to imaging purposes.

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