BASF organics boost Plastic Logic displays

December 05, 2018 // By Peter Clarke
Plastic Logic GmbH (Dresden, Germany), a developer of flexible plastic electrophoretic displays (EPDs), has developed a mass-production capable manufacturing process in collaboration with organic materials specialist BASF SE (Ludwigshafen, Germany).

Plastic Logic has demonstrated two mass-producible six-inch displays; in 300dpi greyscale and 150dpi colour versions. However, it is notable that the colour displays appear somewhat "washed out" and not as vibrant as OLED displays. This may limit applications for the display to those where monochrome displays are sufficient and flexibility, even scrollability, are desirable.

The use of organic semiconductor materials from BASF has resulted in increased carrier mobility in the transistor matrix backplane, necessary for higher resolution displays and is also contributing to the overall flexibility of the device. In addition BASF's material set can be deployed in low-level clean room environments allowing for lower cost mass production.

"Plenty of R&D work has been spent on improving plastic EPD pixel density, culminating in some impressive prototypes. However, these prototypes have always been very difficult and/or very expensive to produce commercially," said Tim Burne, CEO of Plastic Logic, in a statement. "With this new capability and products we're breaking down barriers, creating competitive advantage and widening the potential appeal of ePaper technology," Burne added.

Felix Görth, director of organic electronics at BASF New Business GmbH, said that BASF's materials provide carrier mobilities that exceed those of the incumbent technology, amorphous silicon backplanes.

The process co-development with BASF is also being applied to other electronic applications such as sensors and detectors, Plastic Logic said.

Related links and articles:

www.plasticlogic.com

News articles:

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Plastic Logic: Flexible plastic e-paper displays

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Plastic Logic shows 500ppi display


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