13.5-inch OLED prototype has 3840x2160 pixels

Good news on the display front. Sharp and Semiconductor Energy Laboratory have jointly developed a new oxide semiconductor that promises screens with higher resolutions, lower power consumption, and narrower bezels. The tech adds a crystalline structure to an oxide semiconductor that would otherwise be amorphous. The end result is smaller thin-film transistors with higher performance, according to Sharp's press release.

What sort of displays will this new crystalline oxide enable? Sharp has a couple of LCD prototypes, including a 6.1" screen that serves up a whopping 2560x1600 pixels—the same resolution as a 30" desktop monitor. There are OLED prototypes, too. The most impressive of those is a 13.5-incher with a 3840x2160 resolution that offers four times the pixels of a 1080p display. The screen's 326 PPI matches the pixel density of the iPhone 4's Retina panel.

As always seems to be the case with cool new technologies, challenges remain in the all-important realms of "service life and production." The press release doesn't even hazard a guess as to how soon displays featuring the crystalline oxide will be available to end users. It does, however, point out that the material might also have applications outside the display world.

More details will be provided at the Society for Information Display symposium in Boston next week. Presumably, the prototypes will be on display, as well. Thanks to Endgadget for the tip.

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