The role of colorants in the generation, storage, and output of digital still images

Abstract

The purpose of this review is to highlight the important role that dye and pigment colorants play in the areas of image generation, image storage, and image output with respect to digital still images. Colorants in the form of dyes and pigments play an integral part in the digital still imaging process, from the initial conversion of the original greyscale image into a full‐colour RGB additive image, followed by electronic image storage, and finally to hard‐copy output via non‐impact printing technologies such as inkjet and thermal dye transfer. In addition, both dyes and pigments are also utilised for image generation in the fast‐developing world of electronic paper display technologies. Dyes and pigments were the mainstay of many of the early analogue photographic processes in the areas of image capture and image reproduction, and this review sets out to show that, in the new age of digital imaging, this situation is still prevalent.

Rigidified malononitrile- and ketone-merocyanines in rigid environments

“…Organic functional dyes recently attracted much attention as novel functional materials with a wide range of applications, for example in molecular memories and switches, food storage, photosensitive pharmaceutics, photodynamic tumour pharmaceutics, dye-sensitized optical elements [1][2][3][4][5][6][7][8][9]. Current research challenges are prediction, optimization and ultimately control of their physical properties, such as optical absorption, emission, long-term stability, processability and reproducibility.…”