lcd screen surface, any covered by crystal

[pekingu]

There are lcd displays that uses glossy and matt surfaces but both made with plastic, why dont they use crystal to cover and protect lcd screens like they did with crt, it is more durable and need less care when cleaning it.

 

[Diablo2K]

Several reasons I would guess, weight and cost, and as for being durable, I would say NO, even tho the tube was "Glass" it was still coated with a non reflective coating, this required that you not use solvent based cleaners and took care not to scratch the antireflective coating with anything. I am sure they would have used plastic in CRTs if they could have, you got to remember the whole tube was one large piece of glass, thats is what made up 90% of the weight of the CRTs!