Sony UHDTVs at CES 2014 - Page 20 - AVS Forum
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PureHazard's Avatar PureHazard 02:08 PM 04-16-2014
Quote:
Originally Posted by Rf13 View Post

The player comes with wireless connection now but it's not even ac standard and knowing sony it's probably the same NIC from the ps4 so it will only work on 2.4ghz. If this thing is 700 bucks again they're nuts 300 at the most maybe 4. Maybe next year they can get with future standards. ac wireless and 3.0 USB would be nice to have moving such large content as 4k. Maybe sony has a plan we shall see.

Sony's maximizing profit margins buy holding back features on a fairly unique product. Not so much different than how Apple has done things with their iPhones and iPads. If you want 4K content now, you pony up the cash.

Unless there are more 4K options out in the market, we'll continue to see technology being held back but will be just "good enough" for now.

Rf13's Avatar Rf13 02:17 PM 04-16-2014
Quote:
Originally Posted by PureHazard View Post

Sony's maximizing profit margins buy holding back features on a fairly unique product. Not so much different than how Apple has done things with their iPhones and iPads. If you want 4K content now, you pony up the cash.

Unless there are more 4K options out in the market, we'll continue to see technology being held back but will be just "good enough" for now.

Very true but seeing as samsung is offering a hard drive instead I wonder which is the better deal.
Carlos_E's Avatar Carlos_E 09:48 AM 04-19-2014
I just read through the feature list of the X850B. The X850B looks like the X900A without speakers and the OptiContrast Panel. It seems closer in features to the X900A than the X850A.
Pixel Dude's Avatar Pixel Dude 08:56 PM 04-19-2014
Quote:
Originally Posted by Carlos_E View Post

I just read through the feature list of the X850B. The X850B looks like the X900A without speakers and the OptiContrast Panel. It seems closer in features to the X900A than the X850A.

Exactly, and the passive 3D seals the deal. Already pre-ordered an X850B two weeks ago from the local AV store.

We would have bought the X900A nearly a year ago if not for those dreadfully ugly space-consuming side speakers and annoyingly shiny screen.
Carlos_E's Avatar Carlos_E 09:50 PM 04-19-2014
Quote:
Originally Posted by Pixel Dude View Post

Exactly, and the passive 3D seals the deal. Already pre-ordered an X850B two weeks ago from the local AV store.

We would have bought the X900A nearly a year ago if not for those dreadfully ugly space-consuming side speakers and annoyingly shiny screen.

The X900A, X850A and X900B all have Local Dimming. The X850B has Frame Dimming. Do you know what's the difference?
Shape's Avatar Shape 10:28 PM 04-19-2014
Quote:
Originally Posted by Carlos_E View Post

The X900A, X850A and X900B all have Local Dimming. The X850B has Frame Dimming. Do you know what's the difference?

Frame dimming means dimming all of the LEDs at once as opposed to local dimming which means that zones can be dimmed independently.
ans7880's Avatar ans7880 10:02 AM 04-20-2014
Quote:
Originally Posted by Shape View Post


Frame dimming means dimming all of the LEDs at once as opposed to local dimming which means that zones can be dimmed independently.

What are the benefits of local dimming vs frame dimming?  Sorry if this issue has already been addressed.  


6athome's Avatar 6athome 05:19 AM 04-26-2014
Looks like Sony is using LG'S 79 inch panel which is passive 3d .

http://www.twice.com/articletype/news/lg-gets-bullish-smart-tv/110744

LG Electronics’ Silicon Valley Lab senior VP Samuel Chang (left) and new product development director Tim Alessi show off a forthcoming 79-inch Ultra HD TV including the WebOS Smart + TV.
survivor's Avatar survivor 08:46 AM 04-28-2014

I am anticipating the Sony X950B. One question that many have asked and didn't get an answer from Sony is the X950B FALD LED zones. I noticed below figure in Sony Japan website illustrating the X950B FALD:

 

http://www.sony.jp/CorporateCruise/Press/201404/14-0415/images/img_005.jpg

 

The blacks and whites square zone represents the zone where the LED is turn on or off. I did a rough measurement of the zone relative to the screen size. Assuming the smallest square zone is one LED zone, each square zone in the picture above is roughly 4mm2 and the whole screen size is 1508mm2 which gives 377 FALD LED zones. This is just my rough estimate and assumption through the picture above in Sony Japan website. Feel free to chip in your opinion.


8mile13's Avatar 8mile13 11:41 AM 04-28-2014
My guess would be 120 zones. Incase there is HDR increased brightness Fafrd estimated 40% increase of zones, which would make it 170 zones. It could be 120 up to 200 zones AFAIK. More than that is out of the question IMO.
HPX4's Avatar HPX4 11:43 AM 04-28-2014

hi everybody I have a question about the SONY XBRX950B 4K TV

 

I wonder what is his the native frecuency pannel

 I read in Wikipedia that the XBR55X900A 4K TV  has a frecuency panel of 120 Hz and motionflow of 960 Hz

 

anybody know why in 4K tv's (sony) has 120 Hz??????

 

in hi levels  sony tv's like  HX929 his native frecuency is 240 Hz!!!!!


HPX4's Avatar HPX4 12:30 PM 04-28-2014

this is a page from sony japan

XBR65X950B

does not specified how many dimming zones are.

 

Tighten the black part of the dark "direct type LED partial drive" And realize a high contrast ratio by partially controlling the LED backlight to suppress unnecessary light emission in response to the scene. Since the control is divided into smaller blocks the entire video in the direct-type LED part drive, allowing fine-tuned depiction of light and dark. Reproduces beautifully to subtle detail and sense of depth in a dark scene, I realized even higher contrast ratio.


fafrd's Avatar fafrd 01:15 PM 04-28-2014
Quote:
Originally Posted by survivor View Post

I am anticipating the Sony X950B. One question that many have asked and didn't get an answer from Sony is the X950B FALD LED zones. I noticed below figure in Sony Japan website illustrating the X950B FALD:

http://www.sony.jp/CorporateCruise/Press/201404/14-0415/images/img_005.jpg

The blacks and whites square zone represents the zone where the LED is turn on or off. I did a rough measurement of the zone relative to the screen size. Assuming the smallest square zone is one LED zone, each square zone in the picture above is roughly 4mm2 and the whole screen size is 1508mm2 which gives 377 FALD LED zones. This is just my rough estimate and assumption through the picture above in Sony Japan website. Feel free to chip in your opinion.

Assuming that that picture is an actual dimmed backlight from the X950B (as it appears to be), it pretty clearly shows 13 dimming zones in the vertical direction and the horizontal direction is either 23 or 24,

So this would equate to 299-312 dimming zones.

For the horizontal direction, 24 dimming zones makes more sense as it results in an even 160 pixels per zone (or 80 pixels at 1080p resolution).

13 dimming zones for the vertical direction is very strange, and basically makes no sense - you can't even make a 2-segment scanning backlight with 13 horizontal dimming zones. I kept counting and recounting to make sure I had it right.

Then I realize that the picture may be clipped. Sure enough, if you look here: http://store.sony.com/65-class-diag-x950b-flagship-4k-ultra-hd-tv-zid27-XBR65X950B/cat-27-catid-XBR-4K-Ultra-HD-TVs?_t=pfm%3Dcategory

You see that the full image is bigger. There is at least one more dimming zone at the top and at least 2 more dimming zones at the bottom, so there are a total of 16 vertical dimming zones (which makes a whole, whole lot more sense).

So in the vertical direction there are a total of 16 dimming zones, not 13, which means an even 135 pixels per dimming zone in the vertical direction.

There do not appear to be any clipped dimming zones to the left, but there are at least 5 or 6 clipped dimming zones to the right, for a total of 28-30 dimming zones in the horizontal direction. 30 would make the most sense since it would be an even 128 pixels in the horizontal direction.

So unless that picture is a fake, I'm going to guess that it means that the X950B has 16 x 30 = 480 dimming zones. Maybe there is a reason Sony insists on charging $8000 for this 65" TV...

Also, since I don't see any indication of the screen size, that backlight picture may be for the 85" screen.
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