The display of the future?

Roll-up, flexible and ultradunn

Flat screens are on the rise and conquer the market more and more. In Nature Materials, scientists now present a new display that is reminiscent of paper and is very flexible.

The display of the future?

The new plastic display, pictures: Philips

A flexible display is a dream for many applications. Gerwin G. Gelinck and Funfzeen colleagues from the Philips Research Laboratories in the Hollandic Eindhoven now present such a marvel, which is almost completely made of plastic. Producing screens, whether deep or flat in the design, consist mainly of electronics on silicon base, which is applied to glass, and are therefore expensive in production. They are not suitable for use in certain areas, such as.B. Electronic paper or integrated displays in the intelligent clothing of the future (cf. Fashion remains portable, everything else should change). For years, it has been researched on polymer-based monitors (cf. Organic colorful light emitting diodes for moblite phones). This year, a first commercial version of electronic "Smartpaper" the US company Gyricon will come to the market, but these systems are neither high uprich, nor very powerful. The most suitable for use as a black and white showing scoreboard in business or hotels.

The Philips researchers now start to break the previous records. Your display is Ultradunn and controls the displayed image over the integrated circuits with its 1888 transistors. Never before existed on the organic basis. Above all, can be played on this screen, which works with a speed up to 5kHz, videos to be played. This too is a breakthrough in the area of polymer electronics, ten times faster than before. The researchers from the Philips Laboratory had already developed a procedure in the past to create liquid crystal displays (LCD) with coated film (see. Rampatable displays).

Now the group around Gelinkeck again present a product based on dun-layer transistors (TFT – thin film transistor). The new display is very light, coarse-flat, as good as unbreakable and can be rolled up. These features make it particularly suitable for mobile purposes, ie as a substitute for heavy laptops and cell phones with tiny, poorly explosive screens. An electronic paper that could be used for e-bookers, magazines and newspapers. A vision of the future is the schoolbag light, in which instead of many heavy books and notebooks are only a rolled-up electronic paper, a small keyboard and a small storage medium.

The display consists of an ultrathun backwall – just 25 microns thick, with 1 micron 1/1000 mm – with the transistors on organic foundation, combined with a front side, which is 200 micron thick and operates with reflective electronic ink (E-INK From E INK CORPORATION CLL. Electronic ink on dun plastic displays). The team is now possible, a quarter VGA (320×240 pixels) Active matrix display with a diagonal of 12.7 cm and a resolution of 85 dpi to achieve.

The new technology is especially economically interesting. Organic transistors allow a much more gentle production of electronic devices as a silicon as they can be made at room temperature from chemical solutions. Targeted can be created with the new process flexible plastic monitors of different shapes. According to Philips, Philips want to progress the further development up to the series market maturity now quickly and has launched a special working group called Polymer Vision.

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