Pieter van Lieshout

Flexible electronic‐paper active‐matrix displays

A QVGA active-matrix backplane was produced on a 25-um thin plastic substrate. A four-mask photolithographic process was used. The insulator layer and the semiconductor layer were organic material processed from solution. This backplane was a combination of the electrophoretic display effects supplied by SiPix and E-Ink Corp., resulting in electronic-paper displays with a thickness of 150 and 100 um, respectively; this is the worlds thinnest active-matrix display ever made.

10.3: Invited Paper: Rollable Displays: From Concept to Manufacturing

Rollable displays enable large displays in small mobile devices. A rollable QVGA display is presented that is integrated into a pocketable e-reader product. On top of that a 254ppi monochrome and a 130ppi color display are presented that are rollable to a radius of 6mm.

60.4: Invited Paper: Rollable Displays — A Technology Development Enabling Breakthrough Mobile Devices

A Rollable Display has been developed that can be rolled to a radius of 7.5mm (0.3inch). The display is of the active-matrix electrophoretic type, based on organic electronics. The display is integrated into a novel mobile device that is ready for commercial launch. The device merges the mobile phone platform and form factor with the abilities of an e-reader.

A flexible, organic QVGA display with gray-scale capability

A flexible 4.7-in. QVGA active-matrix display was demonstrated, containing 76,800 solution-processed organic transistors. The combination of our plastic active-matrix backplane with electrophoretic-ink display material developed by E-Ink resulted in a reflective low-power display with paper-like appearance. By using high-performance organic transistors, it was possible to generate 2-bit images on the display. The display can be bent to a radius below 2 cm.