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Help Explain on Panny TV Spec.

LoToMo
04-04-2008, 08:56 AM
Here are some of the spec:

TH-50PZ85U 50" 1080P Plasma HDTV

Screen Size 50" Class (49.9" diagonal)
Display Resolution 1080p
Contrast Ratio Native: 30,000:1
Dynamic: 1,000,000:1
Compatible Signal Formats 1080p/1080i/720p/480p
Aspect Ratio 16:9 (Widescreen)
Shades of Gradation 4,096
Pixel Pitch (H x V) 0.576 x 0.576 mm
Panel Type G11 Progressive 1080p HD Plasma Display Panel
Aspect Control for TV/AV Modes 4:3, Zoom, Full, Just, H-fill for TV/AV modes
Native Resolution (Number of Pixels) 1920 x 1080
Moving Picture Resolution 900 lines or more
Progressive Scan Yes
Video Noise Reduction Yes
Digital Comb Filter Motion Adaptive 3D-Y/C
Color Purity Optimizer (3D Color Management) Yes
Sub-Pixel Controller Yes
Motion Pattern Noise Reduction Yes
Studio Ref. Mode No
Pro Setting No
Digital Cinema Reality Yes
480 Hz Sub-field Drive Yes
24p Playback(2:3) Yes
Deep Color Yes
x.v.Color Yes
.....


Could you please explain what is: moving pixels, 480Hz Sub field (compare with 120Hz of sony), sub Pixel controller, native contrast ratio (compare with dynamic), Shades of Gradation (4096), Panel Type G11 Progressive 1080p HD Plasma Display Panel.


Thank you very much!

Have a good day!

Loves2Watch
04-04-2008, 09:16 AM
Here are some of the spec:

TH-50PZ85U 50" 1080P Plasma HDTV

Screen Size 50" Class (49.9" diagonal)
Display Resolution 1080p
Contrast Ratio Native: 30,000:1
Dynamic: 1,000,000:1
Compatible Signal Formats 1080p/1080i/720p/480p
Aspect Ratio 16:9 (Widescreen)
Shades of Gradation 4,096
Pixel Pitch (H x V) 0.576 x 0.576 mm
Panel Type G11 Progressive 1080p HD Plasma Display Panel
Aspect Control for TV/AV Modes 4:3, Zoom, Full, Just, H-fill for TV/AV modes
Native Resolution (Number of Pixels) 1920 x 1080
Moving Picture Resolution 900 lines or more
Progressive Scan Yes
Video Noise Reduction Yes
Digital Comb Filter Motion Adaptive 3D-Y/C
Color Purity Optimizer (3D Color Management) Yes
Sub-Pixel Controller Yes
Motion Pattern Noise Reduction Yes
Studio Ref. Mode No
Pro Setting No
Digital Cinema Reality Yes
480 Hz Sub-field Drive Yes
24p Playback(2:3) Yes
Deep Color Yes
x.v.Color Yes
.....


Could you please explain what is: moving pixels, 480Hz Sub field (compare with 120Hz of sony), sub Pixel controller, native contrast ratio (compare with dynamic), Shades of Gradation (4096), Panel Type G11 Progressive 1080p HD Plasma Display Panel.


Thank you very much!

Have a good day!

Moving pixels is to prevent burn in.
480Hx sub field is for 24fps video.
dynamic contrast means absolutely nothing so you can't use it to compare as all of these numbers are inflated.

Lee Stewart
04-04-2008, 09:23 AM
480 Hz Sub-field Drive

480 Hz refers to the subfield drive. 8 subfields per frame x 60 frames per second = 480 subfields per second = 480hz (A subfield drive system detects a PAL source and increases the number of subfields in a frame in order to reduce flicker.)

Moving Picture Resolution 900 lines or more

The resolution can be different between static versus dynamic. As you are watching moving images - that is the resolution that Panasonic quotes. It might be 1300 for a JPEG (just showing a comparsion)

Shades of Gradation 4,096

This denotes the number of shade of gray the panael is capable of showing. Currently all HD is 8bit (256 graduations) but if we ever go to 10 bit or 12 bit (deep Color) this panel could show it.

120HZ

This is the maxium refresh/frame rate of the Sony. The Panasonic is 50Hz/60Hz.

Sub Pixel Controller

End of page 2:

http://www.panasonic-europe.com/upload/portal/2128_E_05_VIERA%2065ZollLX52_1508.pdf

Native Contrast Ratio

There are two ways to measure the CR of a display. One uses a very small section of the display's total area (called spot) while the other measures the entire surface of the display (more accurate and truthful)

Panel Type G11 Progressive 1080p HD Plasma Display Panel.

The manufacturers speficic code number for this PDP panel. 1080P means the native resolutuion of this panel is 1080 Progressive.

jim mohundro
04-04-2008, 11:27 AM
"moving pixels" is not a phrase contained in the original post. Many posters on this forum have written that Panasonic uses some sort of moving pixels effect to offset some burn-in risks, and several posters have written that they confirmed this information orally through contact with Panasonic technicians or officials.

This moving pixel feature does not seem to appear in any official written communication from Panasonic (I can see some concern by Panasonic about corporate liability if 1) description of this feature appeared in official Panny communications, and 2) owners depended on this feature and it didn't work).

Until somebody comes up with an offical Panasonic communication confirming this feature, it is probably wise to act conservatively to avoid burn-in to the extent possible by the usual methods, including always favoring a full-screen approach, using the "aspect ratio" function where necessary, especially during the often discussed (but also not "officially" verified) "break-in" period, i.e., 100 and, sometimes,l 200 hours.

All Panasonics:

Plasma Panel: TH-42PZ700U
Blu-Ray Player: DMP-BD30K
Hard Drive DVD Recorder: DMR-E80H
VCR: PV9664
PV7662 (backup for when the PV9664 fails)

plus the
ComCast Set Top Box: Motorola DCH3200

LoToMo
04-04-2008, 12:31 PM
Thank you for your help. I now kind of understand those kinds of specs from Panasonics: 14 bit color similar to Shades of Gradation 4,096; Sony make 120 Hz TV but Panny make 480 Hz; contrast Ratio is a meaningless number because we can not actually calculate it;

Sorry for any misunderstanding. But that what I get from your response. Please correct me again if I am wrong.

Thank you.

Rick-F
04-04-2008, 12:46 PM
From Panasonic manual for PZ85U:
---
Prevent “Image retention” with Wobbling (Shifts the display image automatically.) (Automatic/Force)
Pixel orbiter Auto
Sets the time for “Pixel orbiter-Force” setting. (1/2/3/4)
---
The pixel orbiter is either Automatic or you can Force it to use one of 4 time increments -- I have no clue as to what the 1/2/3/4 time increments are . . .

The G-11 menas it is an 11th Generation plasma panel. (even if it is a Series 8 model).

jim mohundro
04-04-2008, 04:08 PM
I assume my panel (purchased in February 08) does not have this feature; however it seems technically possible and functionally very desirable. It is not included in my plasma's specs published on the web site or in my operating manual.

All Panasonics:

Plasma Panel: TH-42PZ700U
Blu-Ray Player: DMP-BD30K
Hard Drive DVD Recorder: DMR-E80H
VCR: PV9664
PV7662 (backup for when the PV9664 fails)

plus the
ComCast Set Top Box: Motorola DCH3200

Senna27
04-17-2008, 01:53 PM
Panasonic's specifications for the PZ85U:

Pixel Shifter (Anti-Image Retention) Yes

The PZ700U does not have this feature.