LG 27U631A-B 27-inch QHD IPS Monitor - Smooth 100Hz Performance

In this review the LG 27U631A-B is presented for users who want a sharp, versatile 27' monitor that balances productivity and light gaming. The biggest reason to buy is its 27' QHD IPS panel, which delivers clear detail and wide viewing angles suitable for photo editing, office work, and media consumption. With a 100Hz refresh rate, USB Type-C with 15W power delivery, and HDR10 support, this display is a practical upgrade for anyone replacing a 1080p screen or consolidating devices at a single desk.

Key Features

• 27' QHD IPS display: Provides sharp 2560 x 1440 resolution and consistent color across wide viewing angles for accurate work and enjoyable media playback.
• 100Hz refresh and 5ms response: Reduces motion blur and offers smoother visuals during fast moving content and casual gaming.
• HDR10 and 99% sRGB coverage: Enhances contrast and color expression so movies, games, and photos look more vibrant and detailed.
• USB Type-C with 15W PD: Simplifies connectivity by delivering video, data, and up to 15W of power over a single cable to compatible laptops and devices.
• Reader Mode and Flicker Safe: Lowers blue light and flicker to reduce eye strain during long editing or reading sessions.
• Virtual borderless design: Narrow bezels on three sides create a more immersive desktop and cleaner multi-monitor setups.

Who It's For

The LG 27U631A-B is well suited to creative professionals and home office users who need a clear 27' QHD canvas with accurate color and wide viewing angles, plus students or hobbyist editors who want HDR10 support. Gamers who play competitively may prefer a higher refresh panel, but casual and single-player gamers will appreciate the 100Hz refresh and features like Dynamic Action Sync.

Users who require very high brightness HDR performance or specialized color grading hardware calibration may want a pro-tier monitor instead, and anyone needing more than 15W charging over USB-C should confirm their laptop's power requirements before relying on the monitor as the primary charger.

Pros & Cons

Pros

• Excellent picture clarity at 2560 x 1440 with wide viewing angles thanks to the IPS panel.
• Smoother motion from the 100Hz refresh rate and responsive 5ms GTG timing.
• Convenient USB Type-C connectivity for video and up to 15W charging reduces cable clutter.
• Comfort-focused features like Reader Mode and Flicker Safe for extended use.

Cons

• Some buyers report mixed results with long-term color accuracy and screen longevity, so heavy color-critical workflows may need verification.
• USB-C power delivery is limited to 15W, which may be insufficient for larger laptops while charging and running at full load.

Specifications

Screen size	27 in
Resolution	QHD 2560 x 1440
Panel type	IPS
Refresh rate	100Hz
Response time	5ms (GTG)
HDR	HDR10
USB Type-C PD	15W

Our Verdict

The LG 27U631A-B is a strong midrange 27' QHD monitor that delivers excellent value for users seeking a versatile screen for productivity, media, and casual gaming. Its IPS panel, 100Hz refresh, HDR10, and USB-C convenience make it a practical choice for most home offices, though professionals requiring the absolute highest color precision or laptop charging power may want to evaluate alternatives.

Frequently Asked Questions

Does this monitor support USB-C video and charging?
Yes, it supports USB Type-C video and data and provides up to 15W power delivery for compatible devices.

Is this monitor good for gaming?
It is suitable for casual and single-player gaming with a 100Hz refresh and 5ms response, but competitive gamers might prefer higher refresh rates.

Can this display reduce eye strain for long use?
Yes, Reader Mode and Flicker Safe reduce blue light and flicker to help lessen eye fatigue during extended sessions.