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Nvidia creates a high-resolution display from two low-res panels

By Scorpus ยท 13 replies
Jul 29, 2014
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  1. Researchers at Nvidia have developed a method to produce low-cost, high-resolution displays by simply layering two LCD panels on top of each other. The technique can quadruple the effective resolution of a standalone display, and could lead to cheap screens for...

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  2. wastedkill

    wastedkill TS Evangelist Posts: 1,423   +350

    Thats pretty cool but you can see its not perfect by the bottom of the two offset layers image, dunno about you but when I first read it I was thinking "So they just stuck 2 displays together? what about 2 1080P screens...." xD
  3. Puiu

    Puiu TS Evangelist Posts: 2,348   +821

    It's an interesting idea, but it's too late. 4k displays are becoming cheaper and cheaper. if they push this for a consumer version then we'll have to wait around 2 years for it to come out. there's also the problem of thickness, size, power consumption, refresh rates and other technical difficulties.
    Jad Chaar, Lord Enem and VitalyT like this.
  4. Cheaper than 2 full hd chinesse lcds? I doubt it very much...
  5. Does this also mean I have 'superman's visual acuity' since I have some form of internal squint? :)

    I am really amazed at these engineers...memory stacking, trigate, cascaded dsiplays, etc.
  6. FAKE
    2 x 1280 x 800 = 2560 x 800 or 1280 x 1600
    and never ever 2560 x 1600
    it sooo simple
  7. Ralpb

    Ralpb TS Rookie

    Close. From the described offset, it will approximate increasing each axis by the square root of two. If the color triad is shared between layers, red from one layer and blue-green from the other, this resolution will increase by 4/pi. Combined is about 1.8.
  8. Using this technology, now we can have a cheap 4K led tv.. oh wait, even better, maybe we can have 8K led tv next year!! :D
  9. Jad Chaar

    Jad Chaar Elite Techno Geek Posts: 6,515   +974

    Well said.
  10. EEatGDL

    EEatGDL TS Evangelist Posts: 529   +206

    Never too late my friend, one of the possible target applications is the Oculus Rift, which could get even cheaper. The cheapest ASUS 28" 4K 60 Hz display is 3 times the cost of the cheapest ASUS 28" 1080p display, and here is one observation: those are retail prices, not the real cost, and the two panels would use a single chip, backlight and bessel for both -so the cost is not even linear. In theory, they could sell one "fake 4K" monitor with this technique at less than double [let's say 160%] the price of one 1080p monitor.
  11. 2*(LCD of 1280*800 pixels) is simply 2*1280*800 pixels total. It's also (1280*800) + (1280*800) total pixels. Without loss of generality, consider an LCD of 3*2 pixels, represented by "-":

    - - -

    - - -

    Let's look at 2 LCD's of 3*2 pixels:

    - - -

    - - -

    - - -

    - - -

    Lets combine them, very carefully, perhaps, I will have to stretch one when pixels are made out of "-", but I am only examining the amount of pixels:

    - - -

    - - -

    - - -

    - - -

    - - -
    - - -
    - - -
    - - -
    - - - - - -

    - - - - - -
    - - -
    - - -
    - - -
    - - -

    The last option, some form of staggering, is perhaps the most useful, as BOTH vertical and horizontal density have increased (but not doubled), though with "distortion" as the grid is not longer of right angles typical in LCD panels. If you count, there are 12. with is 2*(3*2), NOT and NEVER 2*3 * 2*2. Amount of pixels doubled, and would need to be quadrupled for 2560*1600.

    Thought: Layer 40 for 25600*16000
  12. cliffordcooley

    cliffordcooley TS Guardian Fighter Posts: 9,134   +3,244

    Lets do a simple demo for those that don't understand how this can nearly quadruple the pixel count. With the exception of the surrounding border, each pixel is split in quarters.
  13. 1 LCD 1280 X 800 = 1.024.000 pixel or 1M
    2 LCD 1280 X 800 = 2.048.000 pixel or 2M
    1 LCD 2560 X 1600= 4.096.000 pixel or 4M

    and everybody go back to school plz
  14. Puiu

    Puiu TS Evangelist Posts: 2,348   +821

    the response time for such monitors is really bad. they also add artifacting which is very visible when viewed from up close. it's also too large and heavy to be use as a head mounted display. the oculus rift is a bad example. it's cheaper and better if oculus just uses a regular 2160p screen that has none of these problems than a fake 4k one. (although I suspect that the consumer version will have a 1080p screen and latter versions will bump the screen resolution)
    I can see this being used in some really cheap monitors, but beyond that it's not really good.

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