E-Paper Display (EPD)

Active Matrix / Segment / Ink-In-Motion

About E-Paper Technology

Two Pigment Ink System

The two pigment electronic ink system is made up of millions of tiny microcapsules, each about the diameter of a human hair. Each microcapsule contains negatively charged white particles and positively charged black particles suspended in a clear fluid. When a positive or negative electric field is applied, corresponding particles move to the top of the microcapsule where they become visible to the viewer. This makes the surface appear white or black at that spot.

Three Pigment Ink System – E Ink Spectra™ 3000

E Ink’s Spectra 3000 utilizes a 3-pigment ink system in a microcup structure. This ink was engineered specifically for Electronic Shelf Labels (ESL) and is offered in black, white and red, and black, white and yellow. This ink system works similarly to the dual pigment system, in that a charge is applied to the pigments, and to a top and bottom electrode to facilitate movement. However, instead of the use of microcapsules, this system utilizes Microcups®, which are filled with the liquid and sealed.

Four Pigment Ink System – E Ink Spectra™ 3100

E Ink Spectra 3100 is E Ink’s next generation Spectra product. Spectra 3100 is a four pigment ink system which incorporates retailer’s requests for additional color functionality, by utilizing black, white, red and yellow particles to offer vibrant color rich content. Spectra 3100 has an improved update time, and an expanded temperature range for red and yellow states, to satisfy retailers’ needs to operate ESL tags in various environments within their stores. In addition, Spectra 3100 will be offered in panels with an updated all-in-one driver IC that supports premium ESLs with higher resolution across various sizes.

Advanced Color ePaper (ACeP)

In 2016 a multi-pigment ink system, Advanced Color ePaper (ACeP), was showcased. ACeP achieves a full color gamut, including all eight primary colors, using only colored pigments. The ink can be incorporated into either microcapsule or microcup structures. Color is achieved by having all the colored pigments in every pixel, removing the need for a color filter array. ACeP maintains the ultra-low-power and paper-like readability under all lighting conditions of regular ePaper.