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"Diamond pixels:" here is a close-up of the Samsung Galaxy S4's display

"Diamond pixels:" here is a close-up of the Samsung Galaxy S4's PenTile display
The Samsung Galaxy S4 has one of the best displays out there, confirmed after rigorous testing of its 5-inch Super AMOLED panel and comparison against the class-leading well-calibrated 4-inch LCD on the Apple iPhone 5.

The S4 features a 5-inch 1080 x 1920 pixel screen, extremely sharp and vivid. But it is also just Super AMOLED and not a Super AMOLED Plus. What this means is it uses a PenTile matrix arrangement with less subpixels than the traditional RGB one. What went a bit under our radar is the actual arrangement of the pixel.

It’s something Samsung refers to as “diamond pixels” and a recent DisplayMate study reveals the actual arrangement in detailed pictures of the display under a microscope.

What’s interesting about it is the different size of the sub-pixels. Blue is the largest one since it has the lowest efficiency and in contrast green is the smallest one.

Here is DisplayMate expert’s comment on this type of arrangement:

source: DisplayMate

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