I'm wrong about what?

Liquid crystals actually interact with the light passing through them, making it possible to affect sunlight overpowering the backlight. OLEDs, being purely semiconductor light emitters, can do no such thing.

I like being able to see my phone display in bright sunlight. I'd love to have a 42" OLED HDTV monitor in my room, but LCD is still more useful for mobile devices for people acquainted with the Great Yellow Ball In The Sky.