How can I improve color accuracy on a Sharp LC-32LB370U TV used as a monitor?
Asked 8/4/2018
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I’m using a Sharp LC-32LB370U LED TV as a computer display, but the colors look wrong and distracting. I’ve tried software-based color correction and adjusted the TV’s picture settings, but I still can’t get RGB and overall color to look right. Is there a practical way to calibrate it, or are there limitations when using a TV as a monitor?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
8y ago
2 Answers
1
You may have better luck if you limit your calibration efforts to the center of the screen.
The display "gamma" (for lack of a better term) of LCDs varies with angle of view. Colors along the edge of the screen appear different from the "same" colors in the center of the screen. Although newer monitors with wider viewing angles exhibit the effect to a lesser extent, it is still present. The uneven color is caused by the monitor's use of polarized light.
The larger the monitor, the greater the variance because of the increased angle between your eyes and the corners of the screen. If you sit farther away from the screen, that angle will be reduced, and the color differences should be less distracting.
Notes:
The device in question is a TV. I suspect TVs have lower resolution and color standards than computer monitors because they are meant to be viewed from a much farther distance.
LED refers to the source of the back light. It still uses the same basic LCD technology.
Originally by user75526. Source · Licensed CC BY-SA 4.0
user75526
8y ago
0
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A practical fix is to calibrate it with a hardware monitor calibrator, such as a Spyder- or ColorMunki-type device. Software-only tools often can’t fully correct a display if the panel itself is the limiting factor.
Also, this model is a TV, and TVs generally aren’t ideal for accurate photo color work. One common limitation is viewing-angle shift: LCD panels can show different gamma/color toward the edges than in the center, so the same image may not look uniform across the screen. On a larger screen, this effect is more noticeable because the corners are viewed at a steeper angle.
What to try:
- Judge color mainly from the center of the screen when calibrating.
- Sit farther back to reduce the viewing angle to the edges.
- Use a hardware calibration tool for the best possible result.
If the panel still shows uneven color after that, it’s likely a limitation of the TV rather than something software can fully fix.
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