[cubefox]

Interesting. When OLED screens age, or burn in, do they get yellow? That is, less blue? If they simply get darker, this means the red and green subpixels deteriorate as well, which means improving just the blue subpixels doesn't solve the problem.

I personally think the relative sizes of the subpixels already reflect how much they age. Larger ones are presumably larger because the dye ages more quickly, and larger pixels don't have to be as bright per area. So improving the blue dye would allow us to make the blue subpixels somewhat smaller and/or brighter. The current size difference is not very large though.

[hedora]

There aren’t any dyes in oleds. They emit photons directly at the correct wavelength.

(Ignoring the topic of the article, which explains why that’s an oversimplification.)

If they yellow, it would be due to different colors dimming at different rates or because there is a plastic protective/anti-glare coating, and it yellowed due to UV exposure.

[cubefox]

> There aren’t any dyes in oleds. They emit photons directly at the correct wavelength.

I meant the new blue PHOLED material.

> If they yellow, it would be due to different colors dimming at different rates or because there is a plastic protective/anti-glare coating, and it yellowed due to UV exposure.

No it would be because red+green=yellow.