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Microcap & Penny Stocks : REFR Since Gauzy
REFR 1.380-2.1%Dec 24 12:52 PM EST
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dimtint
To: dimtint who wrote (1680)12/24/2025 3:50:38 PM
From: firstresponder1 Recommendation   of 1682
 
I believe they'll go either way-- whatever works. SPD could work..
From 2024 BOS GmbH patent "Sun visor assembly for a vehicle interior and motor vehicle comprising such a sun visor assembly":

"The sunvisor assembly is provided with a surface portion which is provided with a light-inhibiting functional layer which changes the light transmittance for ambient luminous radiation as a function of electrical activation. The light-inhibiting functional layer may take the form of a PDLC film.... The light-inhibiting functional layer advantageously takes the form of a PDLC film. Alternatively, the light-inhibiting functional layer may be configured as an SPD film, as an electrochromic layer or as nanotubes applied to a transparent substrate..."

IOW, whatever gets the job done at the cheapest price.
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