27" UltraFine UHD 4K IPS monitor

27BA45U-B

LG Monitor 27BA45U in a matte black finish displaying dimensions, measuring 613.5 mm width, 363.5 mm display height, 539.2 mm total height, and 253.2 mm depth.

The LG Monitor 27BA45U in a matte black finish, featuring DCI-P3 90% colour gamut and HDR support, displays amazing and vivid colours for professional work.

The LG Monitor 27BA45U in a matte black finish utilizes App-based features for swift multitasking, including KVM/mouse switching, Smart Screen Split, and launching video calls.

The LG Monitor 27BA45U, featuring an ergonomic stand and 3-side borderless design, offers 150 mm height adjustment, ±45∘ swivel, and 90∘ pivot.

The LG Monitor 27BA45U in a matte black finish, featuring DCI-P3 90% colour gamut, is shown in a stylish studio being used for professional photo editing and design work.

The LG Monitor 27BA45U in a matte black finish showing an overview of all included components, including the monitor body, stand parts, manual, HDMI, and DP cables.

Key Features

27” UHD 4K (3840x2160) IPS display
HDR10, DCI-P3 90% (Typ.)
Flicker Safe & Reader Mode
2xHDMI, DisplayPort support
LG Switch app
Tilt/Height/Swivel/Pivot adjustable stand

Details mastered

Experience stunning visual clarity and vibrant colours with the LG UltraFine display. Our monitor supports UHD 4K resolution, 90% DCI-P3, over 300nits (Typ.) of brightness, and a 3-side borderless design, making it ideal for various professional settings.

On the desk, there is an ultrafine monitor displaying Photoshop work. Next to the monitor, there is a desk lamp, a mouse, paper, and coloured pencils.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*The keyboard and mouse are not included in the package.

Display

27” UHD 4K (3840x2160)

IPS (178° Wide view)

HDR10 / DCI-P3 90% (Typ.)

Usability

HDMI & DisplayPort

LG Switch app

Comfort & Trust

Ergonomic stand

Flicker Safe & Reader Mode

On the left is an FHD image, and on the right is a 4K UHD image.

UHD 4K

Clarity with
8.29 million pixels

Enjoy vivid and accurate colour expression with the UHD (3840x2160) 4K IPS display, and enhance work productivity with wide-angle viewing.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

HDR 10 with DCI-P3 90%

See amazing colours

Our monitor supports the industry-standard HDR10 (High Dynamic Range) and a DCI-P3 90% wide colour gamut, delivering precise levels of colour and brightness for a truly immersive viewing experience.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*Brightness: 300nits (Typ.), Colour Gamut: DCI-P3 90% (Typ.).

Multi ports

A variety of interface

Our monitor's HDMI and DisplayPort compatibility helps you easily connect various devices for an efficient desk setup.

An image of a laptop and monitor connected with a single USB-C cable.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*HDMI and DisplayPort compatibility is based on various internal device tests by LG.

*HDMI and DisplayPort cables are included in the package, but the included cables may vary depending on product specifications or sales region.

Ergonomic design

Easy and comfy

The 3-side thin bezel design with a slim stand seamlessly blends into your workspace, offering an ideal working experience with convenient tilt, height, swivel, and pivot adjustments.

Borderless Design

3-side borderless

Tilt / Height

-5~21° / 150mm

Swivel

±45°

Pivot

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

LG Switch app

Switch swiftly

LG Switch app helps to optimize the monitor for an efficient work environment. You can divide the display into six areas, manage the schedules, or launch a video call platform with a mapped hotkey effortlessly.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*To download the latest LG Switch app, please visit LG.COM.

Visual comfort

Comparison image of the right side with flicker safe applied and the left side without flicker safe applied.

Flicker Safe

Flicker Safe reduces invisible flickering on the screen, which helps reduce eye strain.

Reader Mode

Reader Mode adjusts colour temperature and luminance that helps to lessen eye fatigue and provide eye comfort while reading documents on a monitor.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*Above feature may vary depending on real use conditions that the user is using.

DIMENSIONS

Key Spec

Display - Size [Inch]
27
Display - Resolution
3840 x 2160
Display - Panel Type
IPS
Display - Aspect Ratio
16:9
Display - Color Gamut (Typ.)
DCI-P3 90% (CIE1976)
Display - Brightness (Typ.) [cd/m²]
300
Display - Refresh Rate (Max.) [Hz]
60
Display - Response Time
5ms (GtG at Faster)
Mechanical - Display Position Adjustments
Tilt/Height/Swivel/Pivot

All Spec

FEATURES

Reader Mode
Yes
Black Stabilizer
Yes
Color Weakness
Yes
Dynamic Action Sync
Yes
Flicker Safe
Yes
HDR 10
Yes
HDR Effect
Yes
Smart Energy Saving
Yes
Super Resolution+
Yes

ACCESSORY

HDMI
YES

CONNECTIVITY

DisplayPort
Yes(1ea)
DP Version
1.4
HDMI
Yes(2ea)
Headphone out
3-pole (Sound Only)

DIMENSIONS/WEIGHTS

Dimension in Shiping (W x H x D) [mm]
694*217*451
Dimension without Stand (W x H x D) [mm]
613.5x363.5x45.4
Dimension with Stand (W x H x D) [mm]
613.5x539.2x253.2
Weight in Shipping [kg]
7.3
Weight without Stand [kg]
4.2
Weight with Stand [kg]
6.8

DISPLAY

Aspect Ratio
16:9
Brightness (Min.) [cd/m²]
240
Brightness (Typ.) [cd/m²]
300
Color Depth (Number of Colors)
1.07B
Color Gamut (Min.)
DCI-P3 86% (CIE1976)
Color Gamut (Typ.)
DCI-P3 90% (CIE1976)
Contrast Ratio (Min.)
700:1
Contrast Ratio (Typ.)
1000:1
Panel Type
IPS
Pixel Pitch [mm]
0.1554(H) * 0.1554(V)
Refresh Rate (Max.) [Hz]
60
Resolution
3840 x 2160
Response Time
5ms (GtG at Faster)
Size [cm]
68.4 cm
Size [Inch]
27
Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)

INFO

Product name
UHD
Year
Y24

MECHANICAL

Display Position Adjustments
Tilt/Height/Swivel/Pivot
Wall Mountable [mm]
100 x 100 mm

POWER

AC Input
100~240V (50/60Hz)
Power Consumption (DC Off)
Less than 0.3W
Power Consumption (Sleep Mode)
Less than 0.5W (HDMI/DP input condition)
Type
External Power(Adapter)

SW APPLICATION

Dual Controller
Yes

What are the benefits of using UHD 4K & 5K monitors?

1. Ultra-High Resolution for Crystal-Clear Image Quality

Boasting 4K (3840×2160) and 5K (5120×2160) resolutions, these monitors offer a much higher pixel count than conventional displays. This results in sharper, more detailed rendering of text, images, and videos, which makes everything on screen look incredibly clear and crisp.

2. Optimized Color Accuracy for Professional Visual Work

These monitors support advanced technologies that enhance image quality and color accuracy, making them ideal for creative professionals. They are a perfect fit for tasks like photo and video editing, graphic design, and color grading, where accurate and vibrant colors are paramount.

3. Enhanced Content Immersion

You can watch 4K content from services like Netflix, YouTube, and other streaming platforms in its native, high-quality format. The high brightness and rich contrast levels further elevate your viewing experience, making movies and TV shows more immersive and visually stunning.

4. More Screen Space

The high resolution allows you to display more content on a single screen at once. This is a big advantage for multitasking, especially for tasks such as video editing, design, coding, or research, where having multiple applications and windows open side by side can significantly improve your workflow.

Who would especially benefit from using UHD 4K & 5K monitors?

LG UHD 4K & 5K monitors are especially well-suited for users who demand precision, love high-quality content, and value efficient multitasking.

They are ideal for professionals in graphic design, photo editing, and video production, where high resolution and accurate color reproduction are crucial. The monitors' support for technologies like DCI-P3 and HDR10 enhances both convenience and visual quality. The increased screen real estate also benefits planners, developers, researchers, and finance professionals who work with multiple windows simultaneously, improving overall workflow efficiency.

For those who want to enjoy 4K content from platforms like YouTube or Netflix in its original quality, the sharp resolution and vibrant contrast provide a deeply immersive viewing experience.

In short, UHD 4K & 5K monitors offer a versatile solution, perfectly serving both professional users who need visual accuracy and general users who want to enjoy rich, detailed content.

What are the differences between OLED, IPS, and VA panels?

OLED (Organic Light-Emitting Diode)

OLED panels are a premium display technology where each pixel emits its own light. This self-emissive design allows for true blacks and an infinite contrast ratio, since pixels can be fully turned off. They also have ultra-fast response times, making them the best option for high-end gaming monitors, premium TVs, and professional video editing where colour accuracy and speed are critical.

IPS (In-Plane Switching)

IPS panels are known for their accurate colour reproduction and wide viewing angles, which keeps the image clear and consistent even when viewed from the side. This makes them a great all-purpose choice for office work, design, and gaming. Gamers especially appreciate their superior colour accuracy, as it allows them to experience the game’s visuals exactly as the developers intended.

VA (Vertical Alignment)

VA panels offer the highest native contrast ratio of all LCD types, delivering an immersive experience for movies and videos with deep blacks and rich colours. While not as fast as TN or OLED panels, their performance has improved to the point of being a great, all-around option for both casual gaming and general media consumption.