Propozycja.

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Note added at 25 mins (2017-02-18 22:10:02 GMT)
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High transparency and translucency. Depending on pixel pitch the translucency is upto 80%. If the LED display is lit up, it is impossible to tell it is transparent.
http://displays.ledbow.com/products/glass
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Note added at 32 mins (2017-02-18 22:16:23 GMT)
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Depending on context:
2) lack of screen see-through ability

See:
See-through display
https://en.wikipedia.org/wiki/See-through_display

3) or lack of screen transparency<b/>

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Note added at 15 hrs (2017-02-19 12:46:29 GMT)
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Note added: there is a subtle technical difference between translucent (transparent but does not follow Snell's law) and transparent (follows the Snell's law and allows for image formation).
Translucency (also called translucence or translucidity) is a super-set of transparency: it allows light to pass through, but does not necessarily (again, on the macroscopic scale) follow Snell's law; the photons can be scattered at either of the two interfaces where there is a change in index of refraction, or internally. In other words, a translucent medium allows the transport of light while a transparent medium not only allows the transport of light but allows for image formation.
https://en.wikipedia.org/wiki/Transparency_and_translucency