Author Topic: Concave & Convex Video Display Technologies  (Read 419 times)

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Offline jonovidTopic starter

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Concave & Convex Video Display Technologies
« on: May 29, 2024, 08:57:20 pm »
what happened to curved TV's
will we see retro convex video displays for arcade game cabinets?
as CRT display technologies became unavailable.
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Offline Gyro

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Re: Concave & Convex Video Display Technologies
« Reply #1 on: May 29, 2024, 09:06:52 pm »
They were a sales gimmick, as were 3D TVs - I remember the hassle of getting that one into the HDMI spec for the manufacturers.

There might be a slight argument for concave PC monitors but the 'focal point' of the concave TVs was far too close to be anything more than a gimmick.

As for convex displays, you're never going to see them. The possibilities of producing an LCD or OLED that is curved in two axes simultaneously is non-existent, especially if it's just for a retro CRT look.
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Offline tom66

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Re: Concave & Convex Video Display Technologies
« Reply #2 on: May 29, 2024, 09:22:15 pm »
Curved TVs were just a silly fad,  much like curved phones - turns out people don't really care for them.  I can see some benefit for curved monitors because in theory you could have an ultrawide screen with less physical area used for the same screen size, but it doesn't offer much of an advantage over two monitors next to each other so... meh.

Virtually all OLED screens can be made curved if required, however some can only flex in one axis.
 

Offline thm_w

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Re: Concave & Convex Video Display Technologies
« Reply #3 on: May 29, 2024, 10:25:35 pm »
You can emulate the CRT look in hardware or software:

https://www.retrotink.com/product-page/retrotink-4k

Curved monitors are common and generally recommended for gaming once you go over ~32" or so.
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Online themadhippy

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Re: Concave & Convex Video Display Technologies
« Reply #4 on: May 29, 2024, 10:58:04 pm »
If you want curves get a projector, cinerama has been around for at least 75 years


Quote
As for convex displays, you're never going to see them
Depends what you class as a display,just one of many examples https://www.digiled.com/product/digiflex/ 
 

Offline Ranayna

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Re: Concave & Convex Video Display Technologies
« Reply #5 on: May 30, 2024, 08:12:18 am »
Isn't the Las Vegas sphere an example for a convex display? Sure, it's convex to an extreme ;)
 

Offline ajb

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Re: Concave & Convex Video Display Technologies
« Reply #6 on: May 30, 2024, 03:21:40 pm »
Isn't the Las Vegas sphere an example for a convex display? Sure, it's convex to an extreme ;)

Sure, you can do a lot with a few gigabucks and a pixel pitch measured in IPD instead of DPI  :P

At slightly more modest scales, there are multiple curvable LED wall products these days.  Actually even standard LED walls can be curved to some extent (there's only so rigid the tile-to-tile connections can be while still being easy to assembly), but systems where the tiles themselves are bendable (random example are relatively new. 
 

Online nctnico

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Re: Concave & Convex Video Display Technologies
« Reply #7 on: May 30, 2024, 03:48:33 pm »
Curved TVs were just a silly fad,  much like curved phones - turns out people don't really care for them.  I can see some benefit for curved monitors because in theory you could have an ultrawide screen with less physical area used for the same screen size, but it doesn't offer much of an advantage over two monitors next to each other so... meh.
IMHO having a curved monitor does have benefits as the screen surface's distance to your eyes varies less so it should be easier to focus. I have two 24" monitors and wouldn't want them to be larger because I'm having trouble focussing between center and edges due to the distance. For this reason I never went for three monitors or larger models.
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