Originally Posted by Tempest261
Not sure I understand this one. Do you have a source? I thought in contemporary WRGB all LG OLED subpixels are white, with 3/4 having a color filter. Therefore all degradation and aging should be identical, regardless of color.
Right beginning, wrong ending.
All the sub-pixels start out white. 3/4 have a color filter.
However, the underlying material is still present in the "white". Each white is made up of R + G + B.
And to make matters worse, the color you see
will differentially age pixels that use it vs. those that don't. So there is a red pixel on 24/7. Yes, it's a "white pixel" made up of light primaries, but it's the only pixel on. So it gets driven all day and night. It ages, the adjacent pixel doesn't.
The only way all degradation would be equal is if all pixels were blaring at 100% all of the time. Otherwise, subpixels will age differently.
Now, why does the "red being bigger" matter? The answer is that it appears making red requires driving the corresponding subpixels pretty hard, and the result has been some clear aging issues on reds (the subpixels, which start out white, but you see as red through the filter). By using larger "red" subpixels, you can get as much light with a gentler "drive" and they should last longer.
will show you a somewhat linear formula for what the math is, but I'm not as certain as he is that all else is being held constant. Any change in the emitter materials could change that math also he is approximating the area gain. His numbers may very well be correct; I'm just less certain.
The magic of white pixels has never been about aging/burn-in. It has always been about the fact there is no need to "pattern" OLED emitter material. And an inability to pattern said material is why Samsung doesn't make OLED TVs.