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Japan Display Inc. announces 651ppi display
Not to be outdone by LG’s recent announcement of a 440ppi mobile display, Japan Display Inc. says they have managed to double the number of pixels per square inch found on the iPhone’s retina display, resulting in 651ppi and an image that is much sharper than anything else currently available.
The JDI display in question measures only 2.3-inches but features a resolution of 1,280 x 800. VR-Zone points out that the company used polysilicon TFTs as the driver element and that the panels had to be manufactured in a low-temperature environment.
The company claims that image quality on the screen is comparable to film-based photographs. There’s no doubt that packing more pixels into a display will result in sharper images and text, but can the human eye even distinguish the difference? JDI says yes and they even claim to have results from a study conducted on the sensory evaluation of letters appearing on the screen.
It’s unclear how JDI plans to use these screens or how long we will have to wait to see them hit consumer electronics but one thing is for sure; 2.3-inches isn’t large enough to make an impact in the smartphone market. But if they can make a display of this size, then surely they could double it to 4.6-inches, right?
JDI launched in April 2012 as a joint effort between Sony Mobile Display, Toshiba Mobile Display and Hitachi Displays. The company will demo the new display and results from the aforementioned study at the Society for Information Display’s Display Week 2012, an event that runs through tomorrow in Boston.
User Comments: 31
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Anyways, not trying to be prick just saying!
"Edit on last post"
"You should read carefully before you post"
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Shouldn't the "pixels per SQUARE INCH" read instead as LINEAR inches?
Why do people get ppi mixed up like that? After all, even FAX machines are 200 dpi, but if they were 200 pixels total per square inch they would only have 14.14 pixels on each side from top to bottom! Let us just test that here for a moment-
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There you go, 14 pixels, if a person wants to check it out, the "dpi" (or "ppi) concept is not the same as pixels per square inch. One letter of the alphabet alone could use up 14 or more pixels. Square inches are not the same as dpi.
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sorry last guest you are mistaken, dpi stands for dot-pixel-inches and is the SI unit for splungeness in color printing
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I guess people forget about the IBM 22 inch 3840x2400 LCD monitor from like 2003(?) that is over 600ppi. We did this nearly ten years ago (of course it was probably 20k to buy, now like $350). Why can't we see just 2560x1600 or x1440 monitors with 120hz... bah.. oh well.
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spydercanopus said:
You're gonna want that PPI when you upgrade your 'iContact Lenses'.
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I missed that before..... DPI stands for Dots Per Inch. :/
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