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I suspect that a liquid crystal might show that phenomenon of increased resistance -- at least in one orientation -- with light exposure. I did a quick search and could't find any examples of resistance being measured as a function of light exposure. The closest I could find was a reference showing that the alignment in a liquid crystal could be affected by absorbed light, but I didn't want to spend $$$ just to read the details. This free reference (https://www.electro-tech-online.com/custompdfs/2011/05/fulltext-1.pdf) reports that electrical resistance parallel or perpendicular to the molecular axis of a liquid crystal varies enormously (10E10 for this particular example). Thus, if you were measuring in the low-resistant perpendicular orientation and light caused some molecules to change, the resistance would increase.
I know that is just supposition and doesn't really answer your question, but maybe you will want to try the experiment. Remember, the light has to be absorbed by the liquid crystal, not just refracted by it.
John