Scientists at the Cavendish Laboratory of the Cambridge University for the first time developed a graphene based flexible screen
A flexible screen graphene-based working prototype has been unveiled by the University of Cambridge and the company Plastic Logic. This is the first time that graphene is used to manage the electronic part of a flexible display screen. This technical solution could be a simpler and less expensive to manufacture this type of display.
This is a top that opens great opportunities to commercialize flexible displays. Graphene Center at the University of Cambridge and manufacturer of Plastic Logic flexible displays just submitted a graphene-based flexible display prototype. This is a monochrome screen with identical active matrix electrophoretic patterns found in e-readers, except that it is made of plastic, not glass. One can see a demonstration in the video posted on YouTube. Backplane, the electronic part that deals with the display includes an electrode in graphene. According to its designers, this is the first time that this material is used for this purpose.
An advantage of this solution is that the flexibility would create completely folding graphene screens. "This is an important step in enabling the manufacture of fully flexible and portable devices," said Professor Andrea Ferrari, director of graphene Cambridge. The back plate has a density of 150 pixels per inch incorporates an electrode associated with replacing graphene film electrode layer of metal deposited by sputtering electrodeposition. The result is that this technique can make the plane back cool by printing the graphene on the substrate.
The technique can be transposed to the LCD and OLED
The prototype in question was produced at a temperature of 100 ° C from the technology of thin film transistor developed by Plastic Logic. The electrode thus deposited was then cut to the micrometer scale to create the necessary connections. This process could help simplify and reduce the cost of consistently manufacturing flexible displays. "The potential of graphene is well known, but now we need to develop the industrial process engineering to get the graphene laboratories to industry," says Indro Mukerjee, CEO of Plastic Logic. This British company founded in 2000, is itself the result of the work of the Cavendish Laboratory at Cambridge University.
The next step is to translate this technique to LCD and OLED display systems for flexible color screens that refresh rate is fast enough for video playback. The stated goal is to produce a flexible OLED screen in the coming year.
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