LG 27BL450Y - User Manual

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* LG LED Monitor applies LCD screen with LED backlights.

This product is a computer monitor and not for television purpose.

Please read this manual carefully before operating your set and retain

it for future reference.

22BL450Y

24BL450Y

27BL450Y

OWNER’S MANUAL

LED LCD MONITOR

(LED Monitor*)

www.lg.com

Main Page

Questions and Answers

M
misty18Jul 27, 2025
What to do if no image appears on my LG Monitor?
- L
  Lisa PattersonJul 28, 2025
  First, ensure the power cord is securely connected to the power outlet and that the monitor's power button is pressed. If the monitor displays 'NO SIGNAL' after being turned on, verify the signal cable between your PC and the monitor is properly connected. If the monitor is in DPM mode with the power LED off, press the DC button twice to wake the screen. Also, this message appears when the signal from the PC (video card) is out of horizontal or vertical frequency range of the display. See the 'Specifications' section of this manual and configure your display again. Finally, make sure the OSD controls are unlocked by entering the OSD lock menu and setting the items to 'off'.
S
sellersmaxwellAug 12, 2025
Why is the display image incorrect on my LG Monitor?
- A
  Alexander MarshallAug 12, 2025
  An incorrect display image on your LG Monitor can stem from several factors. First, check that the signal cable is properly connected, tightening it with a screwdriver if needed. Ensure your video card is correctly inserted into its slot. Adjust the color setting to higher than 24 bits (true color) via Control Panel settings. Also, verify the screen isn't set to interlace mode; if it is, change it to the recommended resolution. Be sure to install the latest display driver and confirm your video card supports Plug&Play function.

Summary

Assembly and Preparation

General Assembly Precautions

Safety and product performance guidelines for assembly.

Product and Button Description

Joystick Button Functionality

Explains how to use the joystick button for monitor controls.

Moving and Lifting the Monitor

Instructions to prevent damage during moving or lifting.

Monitor Operation Safety

Monitor Installation and Setup

Installing on a Table

Specifies the required distance from the wall for ventilation.

Adjusting Stand Height

Steps for adjusting the monitor's height safely.

Adjusting Screen Angle

Steps for adjusting the monitor's tilt angle.

Installation Safety Precautions

Pivot Feature Operation

Rotating the Monitor

Steps to rotate the monitor 90 degrees clockwise and counter-clockwise.

Pivot Feature Safety

Warning about scratching the stand base during rotation.

Security and Wall Mounting

Wall Mount Installation Guide

Instructions for mounting the monitor on a wall with proper clearance.

Wall Mounting Details

Wall Mount Specifications

Wall Mounting Safety Warnings

Warnings about electric shock, falling monitors, and screw usage.

Monitor Usage and Connectivity

General Usage Precautions

PC Connection Methods

Details on HDMI and DisplayPort connections for PC input.

Peripheral Connections

USB Device Connectivity

User Settings and Controls

Activating the Main Menu

Steps to access and navigate the monitor's On-Screen Display (OSD) menu.

Joystick Button Menu Mapping

Detailed mapping of joystick actions to menu functions and controls.

Customizing Display Settings

Quick Settings Adjustments

Input and Aspect Ratio Settings

Picture Mode Settings

Picture Mode Options

Advanced Picture Adjustments

Basic Picture Controls

Gaming and Color Customization

Black Stabilizer for Dark Scenes

Gamma and Color Temperature Settings

General Monitor Settings

Troubleshooting Common Issues

No Image or Signal Issues

Troubleshooting steps for when the display shows no image or signal.

OSD Control Problems

Solutions for issues with controlling On-Screen Display (OSD) functions.

Image Display Errors

Troubleshooting steps for abnormal screen colors, blinking, or flickering.

Monitor Recognition Issues

Product Specifications (22 BL450 Y)

Product Specifications (24 BL450 Y)

Product Specifications (27 BL450 Y)

Color Depth and Resolution

Power Consumption and Rating

LG 27BL450Y Specifications

General

Screen Size	27 inches
Resolution	1920 x 1080 (Full HD)
Panel Type	IPS
Refresh Rate	75 Hz
Response Time	5 ms (GtG)
Brightness	250 cd/m²
Aspect Ratio	16:9
Contrast Ratio	1000:1
Color Gamut	sRGB 99%
Ports	HDMI, DisplayPort, VGA
Viewing Angle	178°/178°
Power Consumption	22W (Typical)