There is no reason to think that LCD layers will behave any differently than any other Type II layer, LCD is Type II.
Nearly all ceramics exhibit very high heat resistance, and anodize is a ceramic. Ceramics, because of their extreme hardness are brittle. An internal combustion engine exhaust wouldn't be a good application, you would have to worry about the coating cracking do to the high mechanical vibration.
Heatsinks used in power electronics are traditionally anodized, have been for many years. If you see a black or metallic colored heatsink, it more than likely is anodized and dyed.
Anodic layers can stand up to temperatures well over 1000 deg. C. The aluminum base metal will melt first cracking the anodize, with sustained heat.
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