I think this is fine if the failure to success ratio is low for the parts. Especially given that the failure here refers to failing pixels and doesn't compromis

I think this is fine if the failure to success ratio is low for the parts. Especially given that the failure here refers to failing pixels and doesn't compromise safety. Some quick math, if an industrial part costs $10, and an automotive part costs $20, then for ten cars you save $100. Assuming that 20% of all your cars are faulty, that's a $80 savings translation. With the remaining money, you could spend $40 on R&D for a screen at the same price point with higher reliability and still come out on top. However, at some point, you will reach a time where the number of replacements that don't justify the design. For a bootstrapped company, I don't think it's a bad bet, but it is time critical to find an alternative before they start losing money.