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Toshiba 40G300U Review

40 in.

The 40G300U offers surprisingly deep black levels, but we noticed issues with color temperature consistency.

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Black Level

The black level of the Toshiba 40G300U produced a good black level, compared to the similar LCD televisions we've pulled in for comparison. In fact, it was even slightly better than the plasma Panasonic TC-P42S2 (based on our calibrated settings, which put more emphasis on color performance than contrast). More on how we test black level.

Black Level Chart

Peak Brightness

The Toshiba 40G300U's peak brightness was not quite as bright as the Samsung LN40C630, but it was much brighter than the Sharp LC-40LE700. It's understandable that the Panasonic TC-P42S2, as a plasma, was not as bright as the three LCD TVs. More on how we test peak brightness.

Peak Brightness Chart

Contrast

The Toshiba 40G300U produced a strong contrast ratio of 3533:1, which is trumped here only by the Samsung LN40C630. Due to the good performance in both black level and peak brightness, you can be sure that the Toshiba will deliver on contrast. More on how we test contrast.

Contrast Chart

Tunnel Contrast

The Toshiba 40G300U showed some minor problems with maintaining a consistent black level. What we're looking for in the chart below is a straight, smooth line. The jagginess does not show a trend line, so we're not foreseeing the same sorts of problems common to plasmas. We can only guess that the Toshiba 40G300U simply doesn't have the best processing and display properties. More on how we test tunnel contrast.

Tunnel Contrast Chart

White Falloff

The Toshiba 40G300U has no problems with maintaining a consistent peak brightness, no matter how much or how little of the screen is covered by white. More on how we test white falloff.

White Falloff Chart

Uniformity

The Toshiba 40G300U exhibits some problems with maintaining a uniform black, white, or monochromatic screen. You can definitely see blotches of brightness on darker screens, which could kill some of the effect in dark, noir-ish or horror movies, where an even black level is key. More on how we test white falloff.

Greyscale Gamma

The greyscale gamma test indicates how well a TV transitions from black to white. First, we look at the smoothness of the curve. The upper portion looks fine, but those squiggles towards the bottom-left indicate that the TV may have problems with shadow details. There's also the slope of the line. An ideal slope is somewhere between 2.1 and 2.2. The Toshiba 40G300U's gamma curve of 3.01 is too steep, so it's probably failing to display some of the finer details the the greyscale gamut. More on how we test greyscale gamma.

Greyscale Gamma Chart
Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.

Sections

  1. Introduction
  2. Tour & Design
  3. Blacks & Whites
  4. Color Accuracy
  5. Motion
  6. Viewing Effects
  7. Calibration
  8. Remote Control
  9. Connectivity
  10. Audio & Menus
  11. Multimedia & Internet
  12. Power Consumption
  13. Sharp Aquos LC-40LE700UN Comparison
  14. Samsung LN40C630 Comparison
  15. Panasonic Viera TC-P42S2 Comparison
  16. Conclusion
  17. Series Comparison
  18. Photo Gallery
  19. Ratings & Specs
Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.
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Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.
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