Competition for Oleds? 1000 Zone mini led... - Page 4 - AVS Forum | Home Theater Discussions And Reviews
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post #91 of 97 Old 09-10-2019, 04:32 PM
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Originally Posted by 8mile13 View Post
One takes a look at what everybody has to say about the subject with pro-reviewers/experts opinion carrying more weight.

Right and these numbers.....


https://www.avsforum.com/forum/40-ol...l#post58487080


Is what people have counted.

Z9D Settings Dolby Vision, Gaming etc
https://www.avsforum.com/forum/166-l...l#post56126450
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post #92 of 97 Old 09-10-2019, 06:25 PM
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Originally Posted by ReSultZ View Post
Right and these numbers.....


https://www.avsforum.com/forum/40-ol...l#post58487080


Is what people have counted.
Folks at Displayspecifications make it look like they got the numbers exactly right...as i showed you at least three professional TV reviewers pointed out one should forget about getting the ZD9 zones exactly right. I also stated that very few people had acces to the 100'' one with only one or so doing a zonecount..Vincent Teoh..who also did a zonecount on the 65'' of which he stated that numbers were inbetween 600/650 zones..highly likely he was right on that...counted the 100'' said that it had 1000 zones...Displayspecifications states the 100'' has 1508 zones. Who to believe? Unless Displayspecifications has actually seen the zones or got the zone numbers from Sony i say the 100'' max is 1100 zones.
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post #93 of 97 Old 09-10-2019, 06:29 PM
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Originally Posted by 8mile13 View Post
Folks at Displayspecifications make it look like they got the numbers exactly right...as i showed you at least three professional TV reviewers pointed out one should forget about getting the ZD9 zones exactly right. I also stated that very few people had acces to the 100'' one with only one or so doing a zonecount..Vincent Teoh..who also did a zonecount on the 65'' of which he stated that numbers were inbetween 600/650 zones..highly likely he was right on that...counted the 100'' said that it had 1000 zones...Displayspecifications states the 100'' has 1508 zones. Who to believe? Unless Displayspecifications has actually seen the zones or got the zone numbers from Sony i say the 100'' max is 1100 zones.
Vincent says the 75Z9D has 800.
Either way the numbers he posted are in the ball park that most reports are saying.


I think its hard to nail exactly because of the discrete LED control of the Back Light Master Drive.

Z9D Settings Dolby Vision, Gaming etc
https://www.avsforum.com/forum/166-l...l#post56126450
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post #94 of 97 Old 09-11-2019, 08:49 AM
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Originally Posted by 8mile13 View Post
the 65'' The pro at Digitalfernsehende counted 35x18 adding a questionmark. Same result as the pro at flatpanelshd = 630 zones. With a few other pro's counting 648 with one of them stating ''true number probably lies between 600 /650''.
Does it matter? Few things affect the future of OLED and their competition less than the distinction of whether the Z9D has 630 or 648 zones. You get a visible difference from a shrinking a zone at least in half in each direction, which means quadrupling the number of zones.


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Originally Posted by 8mile13 View Post
...counted the 100'' said that it had 1000 zones...Displayspecifications states the 100'' has 1508 zones. Who to believe? Unless Displayspecifications has actually seen the zones or got the zone numbers from Sony i say the 100'' max is 1100 zones.
The Z9D doesn't have zone grouping, it has individual LEDs with individual control. Placing only 1100 LEDs into a 100" would've left it much dimmer than its siblings.

The only way to avoid that is for the 100Z9D's backlight to be completely redesigned. Each LED would have to be 40% more powerful, well outside normal tolerance, so it would have all-different components in its controller circuitry. The light spreader would also have to be made thicker to work with the looser pitch. The 65" and the 75" using the exact same LED modules, their quantity scaled with area, establishes an opposite pattern, that of just adding modules. Clearly doing so isn't a problem for this design.

Breaking this pattern to penny-pinch on a few LEDs for a $60K TV with a tiny production run would've been nothing short of insanity. The extra design and prototyping costs would alone have destroyed the possible savings (under $100 per unit), and there's nothing to be gained from it except for making a slightly worse TV. For a halo flagship from a company known for giving flagships their all, makes total sense.

Vincent delivers good information early on, not dissects every nut and bolt. 1,508 is within the range of what "a thousand" stands for, when you're reporting live on video from a demo event for a 100" 4K TV.... sorry, a 99.5" 3.84K home video display with TV functions.
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post #95 of 97 Old 09-11-2019, 10:07 AM
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Originally Posted by AnalogHD View Post
Does it matter? Few things affect the future of OLED and their competition less than the distinction of whether the Z9D has 630 or 648 zones. You get a visible difference from a shrinking a zone at least in half in each direction, which means quadrupling the number of zones.
One wants to get the facts right that is all...
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Originally Posted by AnalogHD
The Z9D doesn't have zone grouping, it has individual LEDs with individual control. Placing only 1100 LEDs into a 100" would've left it much dimmer than its siblings.

The only way to avoid that is for the 100Z9D's backlight to be completely redesigned. Each LED would have to be 40% more powerful, well outside normal tolerance, so it would have all-different components in its controller circuitry. The light spreader would also have to be made thicker to work with the looser pitch. The 65" and the 75" using the exact same LED modules, their quantity scaled with area, establishes an opposite pattern, that of just adding modules. Clearly doing so isn't a problem for this design.

Breaking this pattern to penny-pinch on a few LEDs for a $60K TV with a tiny production run would've been nothing short of insanity. The extra design and prototyping costs would alone have destroyed the possible savings (under $100 per unit), and there's nothing to be gained from it except for making a slightly worse TV. For a halo flagship from a company known for giving flagships their all, makes total sense.

Vincent delivers good information early on, not dissects every nut and bolt. 1,508 is within the range of what "a thousand" stands for, when you're reporting live on video from a demo event for a 100" 4K TV.... sorry, a 99.5" 3.84K home video display with TV functions.
Vincent Teoh counted ''at least'' 1000 zones playing a specialised test pattern in a darkened room. Elsewere he states ''1,000 local dimming zones''

''Unlike the smaller 65in and 75in models which are mass-produced, 100in ZD9s are hand-built in Japan by the same group of select engineers, so you can expect first-rate build quality.''
https://www.homecinemachoice.com/con...-led-tv-review
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post #96 of 97 Old 09-11-2019, 05:19 PM
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Originally Posted by 8mile13 View Post
One wants to get the facts right that is all...
But you haven't posted any
As different people have different findings but all are within the same range.
Possible reason..... The Back Light Master Drives discreet LED control instead of typical zones like other FALD's.


I feel like a broken record

Z9D Settings Dolby Vision, Gaming etc
https://www.avsforum.com/forum/166-l...l#post56126450
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post #97 of 97 Old 09-11-2019, 05:32 PM
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Originally Posted by ReSultZ View Post
But you haven't posted any
As different people have different findings but all are within the same range.
Possible reason..... The Back Light Master Drives discreet LED control instead of typical zones like other FALD's.


I feel like a broken record
To me fact in this case is that we can come close but no sigar.
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