Televisions VIZIO VP50 50" Plasma HDTV
| VIZIO VP50 50" Plasma HDTV |
| Written by John E. Johnson, Jr. | ||||
| Friday, 30 November 2007 16:00 | ||||
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On the Bench
As I said, HDTVs these days tend to be pretty good out of the box. The uncalibrated color temperature graph is shown below, with the calibrated color temperature graph following. The TV tended to be a bit warm (reddish) in the dark regions before and after calibration.
Here you see the RGB graphs before and after calibration. Although I could get the RGB lines closer together for IREs above 30, the spread increased below that brightness value. This is a good reason why manufacturers need to add more calibration menu items in future models, including the ability to vary RGB values at different IRE levels, such as 10-30, 31-60, and 61-100.
Conclusions The VIZIO VP50 50" Plasma HDTV display, although not as terrific as one of the much more expensive models from other big name companies, is still a very good product, and well worth considering if your budget is limited, or if you just don't want to spend in the $2k and up market. It has the digital connections necessary (HDMI) for that new high def DVD player you bought, as well as high def programming from satellite. It's a snap to set up, looks fine without having to calibrate it, and has great sound without having to connect it to a receiver.
Comments (4)
SD?
written by No Strings , January 09, 2008 Although any sane person would watch HD content on a set this size, the amount of HD material (satellite, cable, discs, etc.) is still pretty small. Therefore, please include a paragraph regarding the SD quality on your flatscreen reviews.
video processing?
written by Kieran , January 11, 2008 Given all the work Secrets has done on reviewing dvd player's and video processor's capabilities for de-interlacing and scaling, I'm surprised that the recent display reviews by JEJ didn't include any comments on these capabilities. Given that most displays must either scale or deinterlace (or both) the TV signals they are fed, this is an important capability of modern sets. For example, this set needs to scale all HD signals to it's native resolution, and it also needs to de-interlace all 1080i signals.
HD here to stay?
written by kt , July 11, 2008 Wake up people, HD video is everywhere. Standard is only alive if we let the superior format fail once again.
Lack of discrete inputs for universal remotes
written by Doc Rings , September 12, 2009 After setting one of these up for an in-law, it became apparent that there are few codes for discrete inputs for multiple sources for HDMI, Component, etc. This causes a little difficulty with setting up a Harmony remote, etc. It works, but heaven help you if the TV doesn't receive the input change IR code correctly from the remote... usually involves digging out the Vizio remote from a drawer and cycling through the correct inputs... Cheers, Doc Write comment
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Brightness measured at 31.3 foot-Lamberts, which is about twice as bright as a commercial movie theater. So, there is plenty of brightness for viewing anytime. I measured a contrast ratio of only 300:1, which is way below the specification. The problem appears to be the background illumination (the black level), which measured 0.1 foot-Lambert. However, because the screen is so bright, it still looked great.
Gamma before and after calibration was about the same. Again, perhaps some menu additions to the calibration capabilities would be helpful, with individual adjustments for 10-30, 31-60, and 61-100 IRE. 
The CIE Chromaticity graph indicates that it has enough red capability, more than enough green (although slightly blueish), and not enough blue capability. 
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