Vizio E322VL LCD HDTV Review
The Vizio E322VL is a one-off model that seems to be nothing more than a successful experiment on Vizio’s part.
The Vizio E322VL did not perform very well in our black level tests. As you can see in the chart below, the black level measured approximately 0.42 cd/m2, far brighter than similar models from Samsung and Sony. An LG television did produce similar results. It appears that, like many LGs, this Vizio focuses more on color performance than maximizing the contrast ratio. More on how we test black level.
The Vizio E322VL managed a peak brightness of 328.63 cd/m2, which is perfectly bright for most room environments. More on how we test peak brightness.
The Vizio E322VL's contrast ratio of 782:1 is certainly a let down, by most standards. What hurt it was the terrible black level performance. Granted, Vizio only claims a contrast ratio of 10,000:1 on its website, while Samsung and Sony frequently claim 1,000,000:1 or higher. Once these are re-scaled for reality, we suspected there might be a performance gap like this. Overall, though, we're not too disappointed because the Vizio's color performance was quite good. More on how we test contrast.
The Vizio E322VL had a hard time maintaining a consistent black level as the amount of bright white on the screen increased. This is typically a problem that plasmas, not LCDs, suffer, and we can only guess that there's some processing going on that we're not aware of and unable to disable. In everyday viewing, you can expect that shadows in a mostly bright screen, like a snowy field, will not be nearly as dark as the same shadows in a mostly dark scene. More on how we test tunnel contrast.
The Vizio E322VL had no problems maintaining a consistent white level. More on how we test white falloff.
The Vizio E322VL did not have a perfectly uniform screen illumination, which is typical of CCFL-backlit LCDs. On an all-white screen, the corners are dimmer and more yellow. On an all-black screen, the corners are much brighter. More on how we test white falloff.
The greyscale gamma indicates how well a TV transitions from black to white. The chart below tells us a few things. First, the curve is not entirely straight and smooth. The flatter portion in the lower left indicates that the Vizio E322VL has a little trouble displaying detail in the shadows. Variations and gradations may be lost. However, the rest of the curve looks smooth. Secondly, there's the slope of the curve. A slope of 2.49 is a bit steep. Ideally, we're looking for a slope between 2.1 and 2.2. The Vizio E322VL's performance likely loses some of the finer gradations throughout the greyscale. More on how we test greyscale gamma.
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- Color Accuracy
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- Power Consumption
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