We have shown that it is possible to produce durable displays that are largely based on naturalmaterials.After use, these displays are not electronic scrap but can be composted. Combined with recycling and reuse, this can help minimize or completely prevent some of the environmental impacts of scrap pollution.
Manuel Pitch, first publication author and researcher at the Institute of Light Technology of CHINA (LTI)
The operation of the display is based on the so-called electrochromic effect of the original organic material. When voltage is applied, the light absorption changes and the material changes color.
Electrochromic displays have lowpower consumption and simple component architecture compared to commercially available displays such as LED and LCD. Another advantage is that these displays can be inkjet fabricated in a custom, inexpensive and economical manner.
Moreover, this process is suitable forscaling with high bandwidth. The materials used are mainly of natural origin or biocompatible. Gelatin sealing makes the display sticky and flexible so that it can be worn directly on the skin.
The display is generally suitable for applications with a short lifecycle. For example, in medical diagnostics, where sensors and their indicators are cleaned or disposed of after use.
The designed display can also beused for quality control of food containers, where reuse is not allowed. Digital printing allows displays to adapt to people or complex shapes without any costly process modifications. This reduces resource consumption.
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