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Abstract E-Paper Technology

Electronic paper is a revolutionary material can be used for the next generation I, electronic displays. This portable, reusable storage and display the average paper look-But that can be repeatedly mentioned a thousand times one. Woven screens early new field battery for power applications such as cell phones, pagers, watches information and handheld computers etc, two companies Of our pioneering work in the development of electronic ink and both have developed ingenious methods of electronic ink. One of these is the E-Ink, a company based in Cambridge, in the United States, another company does research at Palo Alto Research Center of Xerox Xerox. Both technologies are developed for commercial purposes e custom paper shows rely on the microscopic balls change color in response to the accusations surrounding electrodes. As traditional paper, e-paper should be light, flexible, glare free and low cost. Research has shown that just a few years, could this technology will replace paper and ink in many situations leads us truly paperless world.

Electronic ink is one of the first inventions That combines all the features of the modern electronic display and the sheer convenience and universality of the physical sheet of paper. E-paper is a paper or electronic document is sometimes called radio or smart paper. The paper will be a memorable one, with the exception of: I can't change the printed word. Efforts to create a dynamic electronic display with higher resolution that is thin and flexible enough to become the next generation of paper. Technology was identified and developed is in full swing. Within five years, it is expected that can display electronic books amounts of information as easy as flipping pages of daily newspapers and about yourself, the update via wireless broadcast. They provide the readability of paper under virtually any condition, b without highlighting. And electronic displays ink have persistent without power, the current drawing is tol′kowhen, when they are modified, which means may be less battery and last longer.

E-Paper Technology

Gyricon

Electronic paper was first developed in the 1970 's by Nick Sheridon at Palo Alto Research Center of Xerox. The first electronic paper, called Gyricon, consisted of polyethylene spheres between 75 and 106 micrometres across. Each sphere is a Janus particle composed of negatively charged black plastic on one side and positively charged white plastic on the other (each šarika dipole Amaranthus). Sphere embedded in transparent silicone sheet, with each sphere suspended in a bubble of oil so that they can rotate freely. The polarity of the voltage applied to each pair of electrodes determines lithe white or black side face up, amaranth, giving the pixel white or black appearance. FPD 2008 exhibition, Japanese company Soken has demonstrated has an electronic wall with wallpaper using this technology

electrophoresis

AnÈlektroforetičeskaâ display forms visible images by rearranging charged particles of pigment using the year of the applied electric field.

The basic Scheme of the year electrophoretic Display

In the simplest implementation, electrophoretic display, titanium dioxide, approximately one micrometer in diameter particles dispersed VA hydrocarbon oil is.ATemnogo color dye is added to the oil, along with surface-active substances and charging agents that causes the particles to take on an electric charge. This mixture is placed between two parallel conducting plates separated by a slit from 10 to 100 micrometres. When voltage is applied to the two plates, the particles will migrate èlektroforetičeski on plates, bearing the opposite charge of the particle. When a particle is in front of the display (view), it appears white because the light is scattered back to the observer of the titanium particles with a high refractive index.

When the particle is at the back of the display, it appears dark, because the incident light is absorbed by a coloured dye. If the rear electrode is divided into a number of small picture elements (pixels), then the image can be formed by applying voltage in each region of the display to create a sample reflecting and absorbing Regions. Electrophoretic displays are considered prime examples of electronic paper category, for their paper-like appearance and low power consumption.