It has been interesting to read the wide variety of blogs that have opinions about PenTile technology. We recognize that the technology is not a one-for-one replacement for RGB stripe, but rather a methodology to preserve resolution while achieving better than average brightness and long battery life. Many have noticed that it works far better outdoors than other phones. This is largely due to the white subpixel and improved aperture ratio. Others have found that when they stop looking for the differences they stop seeing it. There are, however, still a few who remain unconvinced.
Here is an interesting string that shows how divergent the opinion is on this topic:
Recently I have noticed some bloggers going back to the statement that PenTile technology has being dropped by Samsung in favor of RGB stripe http://www.tested.com/news/droid-bionic-vs-htc-sensation-4g-vs-samsung-galaxy-s2/2855/. That simply is not the case. Samsung continues to manufacture many PenTile OLED and PenTile RGBW LCDs. The reason for the choice of RGB stripe for the OLEDs in the Galaxy S2 are because a WVGA display in larger than 4-inch diagonal goes below the dpi that is recommend for PenTile in phone applications and may even look pixelated for RGB stripe http://pentileblog.com/?p=444. For higher dpi you may see more new PenTile OLED and PenTile RGBW products from Samsung in the future where PenTile display still remain an enabler. However, we fully expect that for future products, where the dpi is below our recommended minimum, that RGB stripe displays will be used.