Display motion error reduction through novel binary dithering schemes – Mr George Meakin
This PhD project began as an investigation into the potential of Ferroelectric Liquid Crystal (FLC) displays, finding that they could theoretically outperform other LCD types, with three times the lighting efficiency and much higher maximum refresh rates. This high performance requires a novel exploitation of the binary switching of FLC pixels and precisely synchronized illumination. A model was developed to simulate and assess the performance of all possible binary dithering schemes for a generic binary-type display. This included the first attempt to define and quantify the contributions to perceptual errors resulting from relative motion between the retina and display during the emission of an image. These motion errors are critical for Virtual Reality applications, which are predicted to become a significant market in the near future.
The theory behind using a binary display to reproduce colour also applies to digital projectors, which use micromirror arrays to modulate light. A digital projection development platform will be used to implement and verify the performance of the new binary dithering schemes from 2016 onward. These schemes could be used in the near term future in high performance projection displays and head mounted displays, and potentially in the longer term for FLC displays. George will be working with Cambridge Enterprise to pursue commercialisation of this technology.
This project is being undertaken within the Department of Engineering at the University of Cambridge under the supervision of Prof Tim Wilkinson.
Pryn, M., Ten, J., Meakin, G., Sparkes, M. and O’Neill, W. (2014). Industrial laser/FIB hybrid manufacture platform, EPSRC Centre in Ultra Precision Mid-Term Review, 20 May 2014, Cranfield University.
Meakin, G. (2015). Display motion error reduction through novel binary dithering schemes, PhD project video produced for an internal Centre competition in 2015.