Samsung has made great strides with its AMOLED displays in recent years - from the dim and not very color-accurate displays in the first smartphones with AMOLED screens to Samsung Galaxy S5’s 1080p Full HD display that is fairly bright and hits color saturations very accurately. Now, though, Samsung moves forward with its first Quad HD (1440 x 2560-pixel) AMOLED display, first seen on the Samsung Galaxy S5 LTE-A model, a device only sold in Korea, but surely soon coming to more models all over the world.
AnandTech is now the first to analyze the colors of the Galaxy S5 LTE-A’s 5.1-inch Quad HD display, and the results show continuous improvements in AMOLED.
We've already talked about the difference in sharpness between a Quad HD 1440p and a Full HD 1080p display, and how it’s practically insignificant unless you stare at the screen from microscopic distances. What we’re much more interested, though, is color accuracy.
The Samsung Galaxy S5 was calibrated very well with color saturations nicely spaced and the white point hitting a point close to the industry’s 6500K ideal (a temperature that hits the right balance - not too cold, nor too warm). However, the S5’s AMOLED screen had one big problem - it appears green-ish to the point where even a casual observer notices this annoying green tint. The reason for this lies in the underlying technology - Samsung’s current generation of AMOLED uses the so-called diamond pixel arrangement with two green pixels and only one red and blue pixel, rather than a traditional RGB stripe with 1 green, 1 red, and 1 blue. This dominance of green pixels in AMOLED is what makes green stand out so much.
And while the Galaxy S5 LTE-A also seems to use the same diamond pixel arrangement, Samsung has made some improvements so the screen does not appear that green-ish. The key word here is ‘that green-ish’ as while there is improvement, the first analysis shows that green still dominates other colors.
For all else, white point is even closer to our reference point (of 6500K) at 6429K, and grayscale accuracy is the best of any other flagship smartphone. Moreover, color saturations are also very accurate, with deviation of as little as 2.92.
Obviously, the power consumption of a Quad HD display will be higher, but for all else, it seems that Samsung has made AMOLED even better in its new version, and we’re looking forward to seeing it in upcoming devices like the Samsung Galaxy Note 4 and the rumored Galaxy F.
AnandTech is now the first to analyze the colors of the Galaxy S5 LTE-A’s 5.1-inch Quad HD display, and the results show continuous improvements in AMOLED.
We've already talked about the difference in sharpness between a Quad HD 1440p and a Full HD 1080p display, and how it’s practically insignificant unless you stare at the screen from microscopic distances. What we’re much more interested, though, is color accuracy.
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Samsung's diamond pixel matrix used in its AMOLED displays, notice there are 2 green sub-pixels and only one red and blue. |
The Samsung Galaxy S5 was calibrated very well with color saturations nicely spaced and the white point hitting a point close to the industry’s 6500K ideal (a temperature that hits the right balance - not too cold, nor too warm). However, the S5’s AMOLED screen had one big problem - it appears green-ish to the point where even a casual observer notices this annoying green tint. The reason for this lies in the underlying technology - Samsung’s current generation of AMOLED uses the so-called diamond pixel arrangement with two green pixels and only one red and blue pixel, rather than a traditional RGB stripe with 1 green, 1 red, and 1 blue. This dominance of green pixels in AMOLED is what makes green stand out so much.
And while the Galaxy S5 LTE-A also seems to use the same diamond pixel arrangement, Samsung has made some improvements so the screen does not appear that green-ish. The key word here is ‘that green-ish’ as while there is improvement, the first analysis shows that green still dominates other colors.
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Notice the green bar in upper right on both charts - the Quad HD AMOLED (on the right) is better balanced than the very green-ish 1080p AMOLED on the Galaxy S5 (on the left, in Cinema mode) | |
For all else, white point is even closer to our reference point (of 6500K) at 6429K, and grayscale accuracy is the best of any other flagship smartphone. Moreover, color saturations are also very accurate, with deviation of as little as 2.92.
Obviously, the power consumption of a Quad HD display will be higher, but for all else, it seems that Samsung has made AMOLED even better in its new version, and we’re looking forward to seeing it in upcoming devices like the Samsung Galaxy Note 4 and the rumored Galaxy F.
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