AmorphousSi

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  • Hitachi's 4.5-inch IPS HD display delivers 329ppi on the cheap courtesy of amorphous silicon backplane

    by 
    Michael Gorman
    Michael Gorman
    09.27.2011

    It's been awhile, but earlier this year Hitachi unveiled a beautiful new 4.5-inch IPS LCD sporting 1280 x 720 resolution, a 1,100:1 contrast ratio and a retina display-like 329ppi. Well, in the time since, Hitachi's been hard at work on a virtually identical version of that screen that uses amorphous silicon instead of low-temperature polysilicon (LTPS) as its backplane material. What's the difference? Well, amorphous silicon's much cheaper to produce than LTPS, and the company figured out a way to use it in its new panel with only a scant drop in performance -- the new one's got a lower 1,000:1 contrast ratio, but all the other specs are the same. So, the screen's a comparative bargain while still providing 4.5 inches of 500-nit HD goodness. Thanks, Hitachi, we always did like eating our cake and having it too.

  • RiTdisplay begins producing inexpensive a-Si AMOLED displays for smartphone makers

    by 
    Amar Toor
    Amar Toor
    06.02.2011

    Sure, you'd expect to find an amorphous silicon backplane behind your LCD, but RiTdisplay has now begun producing a-Si AMOLED displays that, according to the company, are a world's first. Developed in conjunction with Ignis Innovation, the 3.5-inch panel was first unveiled at last month's SID Display Week, where it beamed images in 320 x 480 resolution. RiT says its a-Si-based AMOLED screens are relatively inexpensive to produce, potentially posing an alternative to its LTPS-backplaned brethren. The company has already begun manufacturing the displays for undisclosed smartphone makers, though there's no word yet on when we can expect to see them pop up in commercial devices. But if the technology proves to be as cost-effective as RiT claims, it could go a long way toward patching up that AMOLED shortage -- as long as you're not too picky about resolution. Brief PR after the break.

  • NEC shows off 12.1-inch no-glasses-required 3D display

    by 
    Darren Murph
    Darren Murph
    10.17.2008

    One day, not too far off in the distant future, we have a dream that all 3D displays will be able to engross us in the third-dimension sans goggles. That these no-glasses-required 3D displays will be the rule, and not the exception. Till that fateful day arrives, however, we're still going to be impressed with ones similar to NEC's latest, a 12.1-incher with an SVGA (800 x 600) resolution. Reportedly, the outfit has developed the prototype screen to show off 3D material without requiring the viewer to ugly up their face with a set of those wonky glasses. There's no sign of a commercial release just yet, but we'll be keeping our naked eyes peeled just in case that changes.[Via Tech-On]

  • Samsung & LG HDTV prototypes battle for supremacy

    by 
    Richard Lawler
    Richard Lawler
    10.15.2008

    Samsung and LG are locked in a tight race for "best HDTV you won't be buying this year or next" this week at the International Meeting on Information Display 2008, trading shots with OLEDs, LCDs and more. Samsung brought along an upgraded version of its true 240Hz 15-inch Blue Phase LCD panel with improved image quality, some fresh carbon nanotube-based color electronic paper, plus slimmed-down versions of its 40- and 50-inch LCDs. Then it got busy with the OLEDs, dropping in a 14-inch HD display, 31-inch 1080p display and 5-inch VGA panel, to which LG could only respond with the above 19-inch OLED powered by amorphous silicon TFT. More stills of the carnage exist beyond the read link, but in the battle of display tech streeting in 2011 at the earliest, we just hope LG is holding back a few surprises for CES.[Via OLED-Display, thanks Erik]