Alignment Layers

	Alignment Layers Alignment layers, or alignment films, are thin films which are a crucial component of liquid crystal displays (LCDs). They are applied to the surfaces of the glass substrates that contain the liquid crystals. The primary function of these layers is to control the orientation of the liquid crystal molecules, which is essential for the proper operation of the display. The alignment layer controls the alignment of the liquid crystal immediately adjacent to itself, and long-range interactions force that alignment to extend significantly into the crystal itself. Alignment layers ensure that liquid crystal molecules are aligned in a specific direction when no electric field is applied. This is critical for the display's function; for example, in twisted nematic (TN) displays, the alignment layers on the two glass substrates are oriented at right angles to each other, creating a 90-degree twist in the liquid crystal molecules, allowing display to modulate light effectively when an elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Liquid-crystal Display A liquid-crystal display (LCD) is a flat-panel display or other Electro-optic modulator, electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not emit light directly but instead use a backlight or Reflector (photography), reflector to produce images in color or Monochrome monitor, monochrome. LCDs are available to display arbitrary images (as in a general-purpose computer display) or fixed images with low information content, which can be displayed or hidden: preset words, digits, and seven-segment displays (as in a digital clock) are all examples of devices with these displays. They use the same basic technology, except that arbitrary images are made from a matrix of small pixels, while other displays have larger elements. LCDs are used in a wide range of applications, including LCD televisions, computer monitors, Dashboard, instrument panels, flight instrument ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Static Charge Static electricity is an imbalance of electric charges within or on the surface of a material. The charge remains until it can move away by an electric current or electrical discharge. The word "static" is used to differentiate it from current electricity, where an electric charge flows through an electrical conductor. A static electric charge can be created whenever two surfaces contact and/or slide against each other and then separate. The effects of static electricity are familiar to most people because they can feel, hear, and even see sparks if the excess charge is neutralized when brought close to an electrical conductor (for example, a path to ground), or a region with an excess charge of the opposite polarity (positive or negative). The familiar phenomenon of a static shockmore specifically, an electrostatic dischargeis caused by the neutralization of a charge. Causes Materials are made of atoms that are normally electrically neutral because they contain equal numbers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]