High aperture LCD display

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lol37
Posts: 59
Joined: 24 Dec 2013, 15:29

High aperture LCD display

Post by lol37 » 01 Mar 2014, 16:07

Hello,
i wonder if LCDs whose sub-pixels nearly completely or completely fills the whole square pixel, that is, doesn't leave any black holes between sub-pixels spaces and top/bottom pixels.
it is an annoying cause of "screen-door" effect, very disturbing effect on high pitch LCDs monitors, making the picture quality worst than an equally pixel-pitched CRT monitor screen. (picture appears less filled)
for comparison look Image
difference between S24A350T (on bottom) and 27Q-LED (just on the right) is clearly visible
i know it's caused by the circuitry that take space and by less extent the panel technology, so there's no others wat than reducing the pixel pitch to reduce this effect ?
will a simulated glow effect can hide thoses black holes ?

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Chief Blur Buster
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Re: High aperture LCD display

Post by Chief Blur Buster » 31 Mar 2014, 17:09

IGZO. The new IGZO panels increase the pixel aperture.
Also, some smartphone and tablet screens now use SHA (Super High Aperture) to compensate for their increased pixel density.

That said, I don't see this coming to lower-density 1080p panels, since the fabs for 1080p panels are already built...

Antiglare, as bad as it is, produces a glow effect that fills in the aperture a bit, at the cost of reduced contrast. High aperture LCDs can also look slightly less crisp than LCDs with more of a screendoor effect because that sometimes amplify the crispness of an LCD. Ironic side effect. On the other hand, the insane density of higher resolution eliminates screendoor visibility anyway, rendering that moot regardless of aperture ratio (as long as it's bright enough). At this stage, it's "MOAR PIXELZ!" (4K) and "OLED PLZZZZ" for big progress!
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