FYI that article refers to the nexus 1 display, which is a RGBG PenTile arrangement. this display is using an RGBW arrangement, which does away with the oversized red and blue subpixels, and adds in a white subpixel.
Here's an article that compares the three (RGB stripe, RGBG pentile, RGBW pentile)
Again, PenTile is just a subpixel arrangement. You can, in theory, have a PenTile arrangement with any type of backlight and any type of panel. so a RGB LED RGBW PenTile IPS Gorilla Glass Capacitive Touchscreen display can exist (RGB LED describes the backlight, RGBW PenTile describes the subpixel arrangement, IPS describes the panel technology, Gorilla Glass describes the glass on top of the LCD, Capacitive touch describes the touchscreen technology)
Thus far however, We've only seen PenTile arrangements used in OLEDs (Samsung's AMOLED screens uses a RGBG PenTile arrangement), and TN LCDs (the display in the Motorola Atrix uses a RGBW PenTile arrangement).
One of the major reasons RGBG PenTile were used in OLEDs (which, FYI are not LCDs; they are closer to Plasma displays than LCDs) was because blue subpixels in OLEDs had a much shorter lifespan compared to Green or Red. This problem doesn't exist in traditional LCDs, and given the drawbacks of the RGBG PenTile arrangement, you generally won't see them used on traditional LCDs.
RGBW PenTile, on the otherhand, does provide some benefit to traditional LCDs, specifically the W subpixel allows for a much brighter looking screen without needing to crank up the backlight, resulting in battery savings, which is why you're starting to see them pop up in some LCD displays. The drawbacks have been marginally improved from the RGBG PenTile arrangement, but they're still there.
Actually, it's the green pixels that have the problem.
Comments
FYI that article refers to the nexus 1 display, which is a RGBG PenTile arrangement. this display is using an RGBW arrangement, which does away with the oversized red and blue subpixels, and adds in a white subpixel.
Here's an article that compares the three (RGB stripe, RGBG pentile, RGBW pentile)
http://expiance.com/blog/2011/05/13/...bile-displays/
If you looked at the comparisons made in the article about THIS display, you would see that the same thing is true here.
In theory, yes.
Again, PenTile is just a subpixel arrangement. You can, in theory, have a PenTile arrangement with any type of backlight and any type of panel. so a RGB LED RGBW PenTile IPS Gorilla Glass Capacitive Touchscreen display can exist (RGB LED describes the backlight, RGBW PenTile describes the subpixel arrangement, IPS describes the panel technology, Gorilla Glass describes the glass on top of the LCD, Capacitive touch describes the touchscreen technology)
Thus far however, We've only seen PenTile arrangements used in OLEDs (Samsung's AMOLED screens uses a RGBG PenTile arrangement), and TN LCDs (the display in the Motorola Atrix uses a RGBW PenTile arrangement).
One of the major reasons RGBG PenTile were used in OLEDs (which, FYI are not LCDs; they are closer to Plasma displays than LCDs) was because blue subpixels in OLEDs had a much shorter lifespan compared to Green or Red. This problem doesn't exist in traditional LCDs, and given the drawbacks of the RGBG PenTile arrangement, you generally won't see them used on traditional LCDs.
RGBW PenTile, on the otherhand, does provide some benefit to traditional LCDs, specifically the W subpixel allows for a much brighter looking screen without needing to crank up the backlight, resulting in battery savings, which is why you're starting to see them pop up in some LCD displays. The drawbacks have been marginally improved from the RGBG PenTile arrangement, but they're still there.
Actually, it's the green pixels that have the problem.