E-paper
E-paper, also known as electronic paper, is a display technology that mimics the appearance of ordinary ink on paper. It uses reflected light rather than emitting its own light, making it highly readable in direct sunlight and energy-efficient, as it only consumes power when the image changes. This technology is commonly used in e-readers, digital signage, and low-power IoT devices.
Developers should learn about e-paper when working on projects requiring low-power, always-on displays, such as e-readers, smart labels, or wearable devices. It is particularly useful in applications where battery life is critical, readability in bright light is essential, or minimal environmental impact is desired, as it reduces eye strain and energy consumption compared to traditional LCD or OLED screens.