Einknäyttöjä

Einknäyttöjä, a Finnish term, translates to "e-ink displays" in English. These electronic paper displays utilize a technology that mimics the appearance of ordinary ink on paper. Unlike traditional LCD or OLED screens that emit light, e-ink displays reflect ambient light, making them highly readable in direct sunlight and significantly reducing eye strain during prolonged use. The core of an e-ink display consists of millions of tiny microcapsules, each containing positively charged white particles and negatively charged black particles suspended in a fluid. By applying an electric field, these particles can be moved to the surface, creating either a black or white appearance. This bistable nature means that the display only consumes power when the image is being changed, leading to extremely low power consumption and enabling devices to last for weeks or even months on a single charge. E-ink technology is commonly found in e-readers like the Kindle and Kobo, but it is also increasingly being used in other applications such as digital signage, electronic shelf labels in retail, smartwatches, and even some smartphones for secondary displays. The refresh rate of e-ink displays is generally slower than that of emissive displays, which can make them less suitable for fast-moving content like videos. However, for static or slowly changing content, their power efficiency and readability are unparalleled.