LEO Research Centre 93 Dzirnavu Str., Riga, LV-1011, LATVIA
EuroLCDs Ltd. Ventspils High Technology Park 2, 9 Kaiju Str., Ventspils, LV-3602, LATVIA
Research Laboratory of Semiconductor Physics, Institute of Technical Physics, Riga Technical University 3 Paula Valdena Str., Riga, LV-1048, LATVIA