E-Paper HAT was designed to provide users with an E-Ink display. The product has a 2.7-inch AMEPD display with a 276x176 resolution. It also supports both SPI interface and it has 4 programmable buttons so that user can customize the what to feature. Users can enjoy the "Glare-free" display which has low power consumption and is ideal for outdoor use.
The basis of the microcapsule electrophoretic technology used in e-paper displays is that when an electric field is applied, charged particles floating in transparent fluid travel to the edges of the microcapsule, making it visible by reflecting ambient light, exactly like traditional printed paper.
E-paper displays have approximately a 180° viewing angle and can clearly show images and messages in both artificial and natural light. As a result of its paper-like effect, it is typically utilized as an e-reader.
Resources: