3D (TV) glasses

Aug 20, 2026 Last reply: 1 month ago 7 Replies
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I rescued a 3d capable TV a few weeks back. Then, yesterday, stumbled on a pair of glasses that *likely* work with said TV (I've not verified this, yet).



The glasses seem rather low-tech. I suspect a pair of LCD shutters controlled by a wireless signal? Which, potentially, could just be a carrier at phase-locked to the TV's frame rate.



Or, is there more magic to it?


I don't think so.

I have a Panasonic 3D TV with active glasses of the sort you describe. Requires a 3D TV signal. Wimbledon is transmitted in 3D and is amusing for a short while but tiring to wear them for any length of time.

Particularly annoying in bright lighting conditions when the flicker from the half speed frame display rate seems to be more prominent.

Wimbledon live is mid summer afternoons so not a good fit.

In the 3D mode it is unwatchable without the active glasses. Some DVDs have 3D content if you scour the tat shops or eBay.

It is better than the red/cyan glasses 3D but the novelty soon wears off and the content is often gratuitously 3D "effects" boulders and spears coming out of the screen - that sort of thing.

Then, is the 3D effect not "optional"? I.e., for broadcast content, I would imagine there's no choice over how the fields are packed so the only options would be for the TV to display only half of them (with attendant visual artifacts).

The service manual suggests the TV can support side-by-side, top-and-bottom, checkered, alternating/sequential and another that I don't recall. This suggests the TV actually buffers the frames and reconstitutes them for alternating presentation?

I'd assume you could SELECT that presentation instead ofbeing saddled with it unconditionally.

So, there is no subtlety to it like a shimmering mirror display?>

I'm not sure how it does it internally but I suspect in non-3D mode it shows every alternate frame and interpolates using the same method it uses to take default frame rate to 2x.

UK 50Hz down to 25Hz is rather too perceptible. Especially if you are used to 100Hz frame rate on a decent quality set.

I think that is how it is done and a frame behind realtime. Ths TV says something like "£D signal detected" and this can be in the middle of a documentary if there are say some fish swimming in the ocean.

Default on mine is set to no 3D even when signal is available. If set it the other way you must wear the glasses for any 3D ocntent.

No subtlety at all. It does shimmer though in an annoying way. You have to try it out and see what you think. It was a fad and common on high end sets when we got this one but 3D mode has barely been used.

I agree, I have an old Samsung 3D TV that actually runs linux and uses similar glasses.,

Never seen a good 3D TV transmission.. So when it got problems bought a new Samsung HD one, it is bigger, but not 3D. But that seems to run some other OS and lacks some features the Linux version had.

I did some 3D software for the old Samsung glasses.

3D video maybe nice for a drone camera for example.

But walking around in virtual realty with a big thing on your head is not that much fun.

So, do you have the option, at that time (i.e., a button on a remote) to enable 3D or not?

But, for non-3D content, it just seems like you are using "sunglasses" to view the imagery? I.e., the shutters are not activated.

<frown> I was hoping it would be usable as a 3d *monitor* (assuming I could write a "filter" to interleave the different views). <shrug> I'll see if I can make time to play with it. If not, just add it to the pile of stuff that gets recycled. [Distressing to see how much goes OUT the door and yet how much REMAINS! :< ]

Yes. It says "3D signal available" and if you click 3D and put on the glasses you see it in 3D but at half the frame rate alternate eyes.

Dunno. I wouldn't wear the damn things for any longer than watching 3D.

It may well be if you are prepared to read the spec for sending it a video signal that matches its expectations for being 3D.

It is worth a try. If it has HDMI and/or SCART inputs you should be in with a chance although you might need to reverse engineer a bit.

I found modern 3D sufficiently unimpressive to have given up on it. Not many of the latest TVs offer it so if you have one then hang onto it. Who knows in a while they could be valuable antiques!

someone made money selling "2D glasses" that would show only one of the images to both eyes :)

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