Our Technology

The image by EASL display is formed by transparent and light scattering structures of smectic A liquid crystal

EASL DMD™ (Electrically Addressable Smectic Liquid crystal Daylight Memory Display) is a unique and patented LCD technology that utilizes smectic A type of liquid crystal material.

The image on EASL display is formed by transparent and light scattering structures of smectic A liquid crystal. In transparent configuration (Vindauge™), the image is built by milky-white scattering structure on a background of a glass-like transparent structure, revealing the objects behind the display. In reflective configuration (PolyDisplay®), EASL DMD™ is used together with a dark background material and has appearance of "ink on paper".

EASL DMD have following distinct features:

  • long term image memory: the power is consumed only when part or whole displayed image needs to be updated;
  • excellent readability: diffuse reflective and light scattering properties provide bright image in most ambient light conditions, especially outdoors in sunlight, and allow reading the information at wide angles of view without substantional decrease of contrast;
  • high light efficiency: exceptional glass-like transmission, no light is absorbed within displays cell;
  • no image flickering;
  • low production cost

Formation of intermediate light scattering states allows for defining grey levels. Use of coloured background or dichroic dyes provides possibility for colour image:

When built on a thin glass or polymer substrates, EASL displays can be made formable or flexible. These types of displays are currently under development. Initial research work performed in collaboration with
Kent State University's Liquid Crystal Institute and University of Akron has proven the feasibility of flexible EASL displays.