Now, while half the techie community is busy scratching their heads, wondering whether such an overkill pixel density is even worth having on a ~5" screen, especially at the expense of precious battery life, OEMs are slowly, but surely, climbing aboard the QHD bandwagon, if they haven't already. Even Sony, which a couple of months ago said it doesn't think QHD is worth it even on an 8-inch screen, has been rumored to be planning to equip its next Xperia flagship with a 1440p panel.
Now, Japan-based media has pulled a whisper out of the rumor mill, claiming that Sharp is currently working on the next generation of smartphone LCD panels – the 4K (4096 x 2160) screen. The "sources" said that Sharp felt pressured to develop the pixel-dense screen, due to demand for crazy-high resolutions coming from China. The tech will be ready for mass production some time in 2016 and will be used in 5- to 6-inched displays. So, a 5.5" screen, loaded with a 4K resolution will result in a pixel density of 842 PPI!
The report also claims that Sharp is working on improving the quality of current-gen LTPS LCD panels, by employing an in-house developed method, using polycrystalline silicon (high purity, multicrystalline form of silicon), fused with the glass, which should produce a more transparent, and thus – more vibrant, dispay panel.
Lastly, the rumor claims that Sharp currently has a 600ppi phone display panel ready, which should be hitting markets in China at the start of the next fiscal year.
Well, Sharp does seem to be pretty display-oriented as of late, with the launch of the bezelless Sharp AQUOS Crystal, so at least some of these rumors are likely to be true.