Buying a TV - how to avoid buying a 30Hz one?

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C0rn3j
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Buying a TV - how to avoid buying a 30Hz one?

Post by C0rn3j » 30 Nov 2016, 15:47

I'm looking to buy a 60@2160p TV, however, thanks to manufacturers providing fake refresh rates left and right I am worried I might be buying a 30Hz panel and not even know about it.

How can I possibly check for this? TVs apparently do not really come with Display ports, so looking at specs of HDMI 60@2160p is supported with revision 2.0 and higher. This doesn't really guarantee much anyway from what I know.

I've been looking at
49" LG 49UH603V and 50" LG 50UH635V , and at LGs website I couldn't find any real difference besides the fact that the 50" TV supports 802.11ac, with no mention of the refresh rate in the specs sheet on LG's website.

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lexlazootin
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Re: Buying a TV - how to avoid buying a 30Hz one?

Post by lexlazootin » 30 Nov 2016, 19:54

I'm pretty sure all TVs support 60hz as if they didn't they would not be compatible with a lot of consoles.

And i personally haven't heard of a TV only supporting 30hz.

Falkentyne
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Re: Buying a TV - how to avoid buying a 30Hz one?

Post by Falkentyne » 30 Nov 2016, 20:32

Anything new should support 60hz easily.

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RealNC
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Re: Buying a TV - how to avoid buying a 30Hz one?

Post by RealNC » 30 Nov 2016, 21:56

I didn't know 30Hz TVs even existed. How's that possible? And why?
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Glide
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Re: Buying a TV - how to avoid buying a 30Hz one?

Post by Glide » 01 Dec 2016, 00:53

RealNC wrote:I didn't know 30Hz TVs even existed. How's that possible? And why?
HDMI bandwidth limitations.

C0rn3j
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Re: Buying a TV - how to avoid buying a 30Hz one?

Post by C0rn3j » 01 Dec 2016, 10:01

Falkentyne wrote:Anything new should support 60hz easily.
How new is new?
https://en.wikipedia.org/wiki/HDMI#Version_2.0

From the wiki spec -
HDMI 2.0b is released and enables these key advanced features

4K@50/60 (2160p)

Which suggests that the TVs I mentioned can only do 2160p@30Hz as they're 2.0a.
lexlazootin wrote:I'm pretty sure all TVs support 60hz as if they didn't they would not be compatible with a lot of consoles.

And i personally haven't heard of a TV only supporting 30hz.
Are you saying you can't connect a 30Hz display to a console? Because I'm pretty sure you can.
RealNC wrote:I didn't know 30Hz TVs even existed. How's that possible? And why?
Since most if not all shows and movies are sold/transmitted in 24 FPS having a high native refresh rate TV is undesirable for the common person who will settle with a TV that only accepts 30Hz max but will interpolate it to higher frame rates. This will hopefully disappear soon as HDMI is now capable of 60Hz@2160p.

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lexlazootin
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Re: Buying a TV - how to avoid buying a 30Hz one?

Post by lexlazootin » 01 Dec 2016, 10:54

C0rn3j wrote:Are you saying you can't connect a 30Hz display to a console? Because I'm pretty sure you can.
Not if you want to display 60hz content you can't. If you were plug in a PS it would be 'out of range'.

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