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RCA L40FHD41 LCD HDTV Review

42 in.

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Color Accuracy

Color Accuracy Summary
{{article.attachments['RCA-L40FHD41-vanity.jpg']}} • Had some problems with maintaining an even color temperature. • Accurate color representation overall. • Color gamut didn't adhere to international standards. • Testing done using DisplayMate Software
{{article.attachments['tvi-prev.jpg']}} Blacks & Whites Page 4 of 18 Motion {{article.attachments['tvi-next.jpg']}}

Color Temperature*(6.90)*


The generally agreed-upon ideal for color temperature is 6500K. This is approximately the color temperature on a clear day. If the TV's color temperature is off, but remains consistent throughout the greyscale, you won't notice the issue much. When color temperature fluctuates, however, you'll notice.

The RCA L40FHD41 had some issues maintaining a color temperature. As the greyscale progresses from white to black, the temperature is perceptibly cool. Then, towards the darker end, the temperature crashes. When graphed, this drop is literally off the chart, making our scientific test look like a simple sight gag.

Color Temperature
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Compare the RCA L40FHD41 to other HDTVs
{{article.attachments['Samsung-LN40B610-vanity.jpg']}} {{article.attachments['Sony-KDL-40W5100-vanity.jpg']}} {{article.attachments['Sharp-LC-40E67UN-vanity.jpg']}}
Samsung LN40B610 40 inches Sony KDL-40W5100 40 inches Sharp LC-40E67UN 40 inches

 

RGB Curves*(7.83)*


Every color on the TV is made from some combination of red, green, and blue. Since they're the building blocks for the rest of the spectrum, we test each one individually. Overall, the L40FHD41 performed well on these tests.

RGB Curves
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There were only some minor problems with the L40FHD41's red curve. There wasn't a lot of differentiation in the low end, but that was true of all the colors. Towards the middle shades of red, the curve gets slightly inconsistent. Overall, though, this was a good performance with no peaking. 

Red Response Comparisons
Ideal Response {{article.attachments['Ideal-Response-redstrip.jpg']}}
RCA L40FHD41 {{article.attachments['RCA-L40FHD41-redstrip.jpg']}}
Samsung LN40B610 {{article.attachments['Samsung-LN40B610-redstrip.jpg']}}
Sony KDL-40W5100 {{article.attachments['Sony-KDL-40W5100-redstrip.jpg']}}
Sharp LC-40E67UN {{article.attachments['Sharp-LC-40E67UN-redstrip.jpg']}}

 

Green was more consistent than red. We really didn't see many issues here.

Green Response Comparisons
Ideal Response {{article.attachments['Ideal-Response-greenstrip.jpg']}}
RCA L40FHD41 {{article.attachments['RCA-L40FHD41-greenstrip.jpg']}}
Samsung LN40B610 {{article.attachments['Samsung-LN40B610-greenstrip.jpg']}}
Sony KDL-40W5100 {{article.attachments['Sony-KDL-40W5100-greenstrip.jpg']}}
Sharp LC-40E67UN {{article.attachments['Sharp-LC-40E67UN-greenstrip.jpg']}}

 

Although the curve for blue was pretty acurate, it was choppier than the curves for the other two colors. This means there's a loss of fine detail. For example, a signal could tell a TV to display a blue with an intensity of 204, 205, and 206 and the TV would display the same shade of blue for all three. This being said, the detail being lost is relatively minor.

Blue Response Comparisons
Ideal Response {{article.attachments['Ideal-Response-bluestrip.jpg']}}
RCA L40FHD41 {{article.attachments['RCA-L40FHD41-bluestrip.jpg']}}
Samsung LN40B610 {{article.attachments['Samsung-LN40B610-bluestrip.jpg']}}
Sony KDL-40W5100 {{article.attachments['Sony-KDL-40W5100-bluestrip.jpg']}}
Sharp LC-40E67UN {{article.attachments['Sharp-LC-40E67UN-bluestrip.jpg']}}

 

Color Gamut*(4.43)*


The colors a TV displays are supposed to adhere to an international standard. This standard, rec. 709, dictates exactly where the red, green, and blue points should be. Rec. 709 ensures all TVs are outputting the same colors. Of course, not all TVs follow this regulation to the letter. In this section we match the TV's green, blue, and red points up against rec. 709's standard.

The L40FHD41 didn't follow rules very well. The red is spot on, but the green and blue are oversaturated. The green is also more bluish than it should be, and the blues are shifted slightly towards purple. 

Color Gamut
{{article.attachments['RCA-L40FHD41-colorgamut.jpg']}}

Below is a chart of our measurements for the three color points, as well as the white point, compared to the rec. 709 standard. The final column describes how far off the TV is from where it's supposed to be.

  u' (rec.709/measured) v' (rec.709/measured) Error
Red 0.4507 / 0.4487 0.5229 / 0.5227  0.0020
Green 0.1250 / 0.1136 0.5625 / 0.5625 0.0114
Blue 0.1754 / 0.1795 0.1579 / 0.1351 0.0232
D65 (white point) 0.1978 / 0.1980 0.4683 / 0.4576 0.0107

 

 

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. Formats & Media
  12. Power Consumption
  13. Vs Samsung LN40B610
  14. Vs Sony KDL 40W5100
  15. Vs Sharp LC 40E67UN
  16. Conclusion
  17. Series Comparison
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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