P8. LC Device Fabrication and characterization

In almost all liquid crystal devices for electrooptic applications (like displays) the liquid crystal (LC) material is confined between two glass plates. By applying electric fields to the LC via (transparent) electrodes the molecules are reoriented and and optical properties of the LC layer is changed. By placing the "LC cell" between crossed polarizers amplitude modulation of transmitted light is obtained.

In this project we aim to build and characterize a simple LC device.  The type of device will be decided in the beginning of the project.
The processing involves: cleaning, lithography (ITO electrodes), alignment layer deposition, alignment layer treatment (buffing/rubbing), glue deposition, cell assembly, UV-hardening of glue, cutting of ready cells.

The cells will be filled with suitable LC materials and characterized.

Per Rudquist
Marek Matuszczyk