References
- Patent USSR 488177 (1974) G02 b 1/13
- Tsvetkov V.A. and Tsvetkov O.V., Two Colour Diffraction Display. asia Display'98 Digest (Seoul, 1998), p.829-833
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Tsvetkov,V.A. and Tsvetkov, O.V., Performances of the Diffraction LC Display (DLCD) Prototype, Proc.of
$22^{nd}$ Int. Conference Eurodisplay'02 (Nice, 2002), p.469-473 - Portfolio of patents on diffractive displays: Russian patents No2201611, No2202817, No 2196351 No 2196352, No 2196353