Toshiba REGZA XF550U Series

Toshiba REGZA XF550U Series


  • 52″ 52XF550U
  • 46″ 46XF550U
  • 40″ 40XF550U

Pixel Format: 1920 x 1080
Contrast Ratio: 3,000:1 (native), 30,000:1 (dynamic)
LCD: 10-bit
Backlight: Wide Color Gamut CCFL (WCG-CCFL), DynaLight Dynamic Backlight Control
Frequency: 120Hz
Input: HDMI (3), Component (2), Composite (1), S-Video (1)
Dimensions (w/o stand):

  • 52″ 52XF550U: 47.84″ x 29.9″ x 6.0″
  • 46″ 46XF550U: 42.16″ x 26.4″ x 5.9″
  • 40″ 40XF550U: 36.77″ x 23.1″ x 5.6″

Dimensions (with stand):

  • 52″ 52XF550U: 47.84″ x 32.1″ x 13.0″
  • 46″ 46XF550U: 42.16″ x 28.5″ x 12.1″
  • 40″ 40XF550U: 36.77″ x 25.3″ x 12.1″

Other: 14-bit PixelPure 4G, 5:5 Clear Frame

The first thing you’ll notice about Toshiba‘s REGZA XF550U series LCD TVs is that the bezels are extremely thin. This is a great design feature for those that have limited cabinet space. If you limited by your cabinet space to a 37″ LCD TV, the 40″ 40XF550U might just fit. The bezel is just 0.9″ thick around the LCD. The dimensions of the 40XF550U are 36.77 x 23.1 x 5.6 (width x height x depth).

Toshiba incorporated its 14-bit PixelPure 4G technology that processes the images at 14-bit. The XF550U series marry that processing power with a 10-bit LCD that produces a tremendous amount of color. Consider that a typical 8-bit LCD generates a pallet of over 16 million colors.

I found out that 120Hz and motion interpolation technologies can lead to the Triple Bell Effect (TBE) and the Soap Opera Effect (SOE). Discussions on online forums seem to be limiting TBE to advanced Samsung LCD TVs with 120Hz. TBE can be seen mostly in balls that are in motion and also on other fast moving items. For instance, a fast moving ball can look blurry with ghost images trailing behind. I haven’t seen a clear definition of what SOE is but my guess is that everything is quite blurry. If my memory serves me well the soap operas of the mid-1980s had a generally blurry picture. That might just be my blurry memory.

Toshiba’s ClearFrame 120Hz anti-blur technology “virtually eliminates” motion blur and does this without having a detrimental effect on image brightness or adding flicker. ClearFrame also uses Toshiba’s Motion Vector Frame Interpolation (MVFI, a fancy name for motion interpolation) that creates new frames and inserts them between the original frames.

The ColorBurst WCG-CCFL backlight improves the color gamut, thus the color purity and saturation and allows for the x.v. Color gamut. The dynamic contrast ratio of 30,000:1 should yield some impressive pictures. The DynaLight Dynamic Backlight Control feature allows further improvements of contrast ratio by adjusting the brightness level of the backlight based on the brightness level of the video. There are 256 levels of backlight intensity. However, this is not the same thing as local dimming, which is a more advanced feature that is mostly associated with LED backlights. Local dimming allows for backlight dimming in select areas of the screen whereas Toshiba’s DynaLight covers the entire screen. Still DynaLight should improve the contrast ratio by up to 10x.

Source: ProductWiki, Toshiba

[tags]Toshiba, 40″, 46″, 52″, LCD TV, 1920 x 1080, 1080p, Full HD, 120Hz, WCG-CCFL, Wide Color Gamut, Motion Interpolation, HDMI, 10-bit, Dynamic Contrast[/tags]

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