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LG 27UL500-W ACN Product Specifications English

Summary

Elevate your workspace with this LG LED LCD Monitor, featuring brilliant clarity and modern design. This comprehensive owner's manual is the essential guide for new users, ensuring safe setup and optimal performance right out of the box. Within these pages, you will find detailed instructions on initial assembly, easy-to-follow guides for joystick operation, in-depth technical specifications across multiple resolutions (including 4K), and crucial troubleshooting advice to keep your display running smoothly. Perfect for home offices, students, and professionals who demand reliable visual quality.

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Page 1 Text Content

OWNER’S MANUAL

LED LCD MONITOR (LED Monitor*)

* LG LED Monitor applies LCD screen with LED backlights. Please read this manual carefully before operating your set and retain it for future reference.

27UL550 27UL500 27UL55B

www.lg.com

27UL50B

27BL55U Copyright © 2018 LG Electronics Inc. All Rights Reserved.

Page Summary Contents For LG 27UL500-W ACN Product Specifications English

Page 1 OWNER’S MANUAL LED LCD MONITOR (LED Monitor*) * LG LED Monitor applies LCD screen with LED backlights. Please read this manual carefully before operating your set and retain it for future reference. 2...
Page 2 TABLE OF CONTENTS LICENSE Each model has different licenses. Visit www.lg.com for more information on the license. LICENSE ...................................................... OPEN SOURCE SOFTWARE N...
Page 3 EN LISH OPEN SOURCE SOFTWARE NOTICE INFORMATION The components may look different from those illustrated here. Without prior notice, all product information and specifications contained in this manual...
Page 4 Product and Button Description Moving and Lifting the Monitor When moving or lifting the monitor, follow these instructions to prevent the monitor from being scratched or damaged and to ensure safe tr...
Page 5 EN LISH Installing on a Table WARNING Lift the monitor and place it on the table in an upright position. Place the monitor at least 100 mm away from When adjusting the screen height, do not place your...
Page 6 Pivot Feature 3 Rotate the monitor clockwise as shown in the figure. 27UL550 27UL55B 27BL55U The pivot feature allows the monitor to rotate 90° clockwise. 4 Complete the installation by rotating the m...
Page 7 EN LISH Using the Kensington Lock NOTE The connector for the Kensington security system is located at the back of the monitor. 27UL550 27UL55B 27BL55U For more information on installation and usage, r...
Page 8 Installing on the Wall CAUTION Install the monitor at least 100 mm away from the wall and leave about 100 mm of space at each side of the Unplug the power cord before moving or installing the monitor ...
Page 9 EN LISH Display Port Connection USING THE MONITOR Transmits digital video and audio signals from your PC to the monitor. Illustrations in this manual may differ from the actual product. Press the joys...
Page 10 Connecting AV Devices HDMI Connection HDMI transmits digital video and audio signals from your AV device to the monitor. NOTE Using a DVI to HDMI / DP (Display Port) to HDMI cable may cause compatibil...
Page 11 EN LISH USER SETTINGS NOTE Your monitor’s OSD (On Screen Display) may differ slightly from that shown in this manual. Activating the Main Menu 1 Press the joystick button on the bottom of the monitor....
Page 12 Main Menu Features Main Menu Description Input Sets input mode. Power Off Power Off Turns off the monitor. Settings Configures the screen settings. Input Exit Settings Picture Mode Sets the picture mo...
Page 13 EN LISH Quick Settings Settings > Quick Settings Description Brightness Adjusts the contrast and brightness of the screen. Contrast Adjusts the volume. Volume NOTE You can adjust Mute / Unmute by m...
Page 14 Input Settings > Input Description Input List Selects the input mode. Adjusts the aspect ratio of the screen. Full Wide Displays the video in widescreen, regardless of the video signal input. Origi...
Page 15 EN LISH Picture NOTE The Picture Mode that can be set depends on the Input signal. [Picture Mode on SDR (Non-HDR) signal] Settings > Picture Description Custom Allows the user to adjust each elemen...
Page 16 [Picture Mode on HDR signal] Settings > Picture Description Custom Allows the user to adjust each element. Vivid Optimized the screen for HDR vivid colors. Standard Optimized the screen for HDR sta...
Page 17 EN LISH Settings > Picture Description Brightness Adjusts the contrast and brightness of the screen. Contrast Sharpness Adjusts the sharpness of the screen. High Optimizes the screen for crystal cl...
Page 18 Settings > Picture Description Sets a response time for displayed pictures based on the movement of the picture on the screen. For a normal environment, it is recommended that you use Fast. When th...
Page 19 EN LISH Settings > Picture Description Mode 1, The higher the gamma value, the darker the image becomes. Likewise, the lower the gamma value, the lighter Mode 2, the image becomes. Gamma Mode 3 Mod...
Page 20 General Settings > General Description Language Sets the menu screen to the desired language. Conserve energy by using luminance compensation algorithm. High Saves energy using the high-efficiency ...
Page 21 EN LISH Settings > General Description Provides sharper images when connected to a device supporting ULTRA HD Deep Color. 4K@ 60 Hz Support Format Color Depth / Chroma Sampling Resolution Frame rat...
Page 22 TROUBLESHOOTING Nothing is displayed on the screen. Is the monitor's power cord plugged in? Check if the power cord is correctly plugged into the power outlet. Is the power LED on? Check the power cab...
Page 23 EN LISH Do you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message? Have you installed the display driver? Be sure to install the display driver from our web site: ...
Page 24 PRODUCT SPECIFICATION 27UL550 27UL55B Color Depth 8-bit / 10-bit color is supported. Max Resolution 3840 x 2160 @ 60 Hz Resolution Recommended Resolution 3840 x 2160 @ 60 Hz Power Rating 19 V 2.0 A On...
Page 25 EN LISH Monitor Size (Width x Height x Depth) Dimensions With Stand 622.6 mm x 572.2 mm x 230.0 mm Without Stand 622.6 mm x 371.0 mm x 45.8 mm With Stand 6.0 kg Weight (Without Packaging) Without Stan...
Page 26 PRODUCT SPECIFICATION 27UL500 27UL50B Color Depth 8-bit / 10-bit color is supported. Max Resolution 3840 x 2160 @ 60 Hz Resolution Recommended Resolution 3840 x 2160 @ 60 Hz Power Rating 19 V 2.0 A On...
Page 27 EN LISH Monitor Size (Width x Height x Depth) Dimensions With Stand 622.6 mm x 460.0 mm x 209.4 mm Without Stand 622.6 mm x 371.0 mm x 74.1 mm With Stand 5.1 kg Weight (Without Packaging) Without Stan...
Page 28 PRODUCT SPECIFICATION 27BL55U Color Depth 8-bit / 10-bit color is supported. Max Resolution 3840 x 2160 @ 60 Hz Resolution Recommended Resolution 3840 x 2160 @ 60 Hz Power Rating 19 V 2.0 A On mode: 2...
Page 29 EN LISH Factory Support Mode (Preset Mode, PC) Display Port Preset Mode Horizontal Frequency (k Hz) Vertical Frequency (Hz) Polarity (H/V) Remarks 3840 x 2160 133.32 DP Preferred timing
Page 30 Preset Mode Horizontal Frequency (k Hz) Vertical Frequency (Hz) Polarity (H/V) Remarks 3840 x 2160 67.5 HDMI Preferred timing, HDMI ULTRA HD Deep Color : Off 3840 x 2160 HDMI Preferred timing, HDMI UL...
Page 31 EN LISH HDMI Timing (Video) Factory support mode Horizontal Vertical Frequency(Hz) Remarks (Preset Mode) Frequency(k Hz) 480p 31.5 720p 45.0 1080p 67.5 2160p When HDMI ULTRA HD Deep Color is set to ON
Page 32 (for 27BL55U only) This Product qualifies for ENERGY STAR® The model and serial number of the product are located on the back and on one side of the product. Changing the factory default configuration...

Manual Details

Brand LG
Pages 32
File Size 2.95 MB
Published June 06, 2026
64 views

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Frequently Asked Questions

How should I move or lift the monitor safely?

Hold the bottom and side frame firmly, keeping the screen facing away from you. Always disconnect power cables first.

What types of cables should I use for connection?

Always use genuine LG components; generic non-certified cables may result in display issues or image noises.

Does the monitor have a low power consumption feature?

Yes, if inactive, the monitor will go to Sleep Mode within a couple of minutes (max 5 minutes).

What maximum resolutions are supported by this model?

The model supports multiple resolutions including 1920x1080 and up to 3840 x 2160.