This paper introduces and demonstrates a display that incorporates an organic image sensor formed in the same pixel as organic light-emitting diodes through side-by-side patterning. The potential applications of this display include touch sensing, scanning, and fingerprint identification at any location on the entire display screen, without the necessity of an external module.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

We realized a blue-phase liquid crystal display with low driving voltage and high contrast by using a liquid crystal material which is easily twisted and a protrusion electrode structure. Further, we made a prototype of a 3.4-inch panel by a novel manufacturing process suitable for a large-sized panel.

In order to reduce eye strain, a driving method for reducing flickers of liquid crystal display (LCD) is devised. For this driving, an oxide semiconductor (OS) is used in a backplane, liquid crystal and alignment layer materials are optimized, and a fringe field switching (FFS) mode with a structurally formed storage capacitor is used. This work reveals that suitable usages of positive and negative liquid crystals differ from each other according to their characteristics. This work also describes an OS‐LCD with a touch sensor we fabricated for mobile devices, which proves the possibility of reducing‐eye‐strain technology (REST) with reduced flickers.

We applied a method for extending an interval between data rewrite operations in displaying still images to various combinations of liquid crystal materials and alignment films, and confirmed that this method suppressed flickers in data rewriting. Extending this interval during still image display will reduce eye strain.

We fabricated a 6.05-inch reflective liquid crystal display (LCD) using a CAAC-OS for a driving transistor. We achieved low frequency driving at 1/60 fps or lower and flicker reduction. With our LCD, eye strain can be reduced more than with an electrophoretic display.