LG 34WR55QC, 34BR55QC - LCD COMPUTER MONITOR Manual

LG 34WR55QC, 34BR55QC - LCD COMPUTER MONITOR Manual

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LG 34WR55QC, 34BR55QC - LCD COMPUTER MONITOR Manual

ASSEMBLING AND PREPARING

  • Always use genuine LG components to ensure safety and product performance.
  • The product warranty will not cover damage or injury caused by the use of unauthorized components.
  • It is recommended that use the supplied components.
  • If you use generic cables not certified by LG, the screen may not display or there may be image noises.
  • Illustrations in this document represent typical procedures, so they may look different from the actual product.
  • Do not apply foreign substances (oils, lubricants, etc.) to the screw parts when assembling the product. (Doing so may damage the product.)
  • Applying excessive force when tightening screws may cause damage to the monitor. Damage caused in this way will not be covered by the product warranty.
  • Do not carry the monitor upside down by just holding the base. This may cause the monitor to fall off the stand and could result in personal injury.
  • When lifting or moving the monitor, do not touch the monitor screen. The force applied to the monitor screen may cause damage to it.

information NOTE

  • The components may look different from those illustrated here.
  • Without prior notice, all product information and specifications contained in this manual are subject to change to improve the performance of the product.
  • To purchase optional accessories, visit an electronics store or an online shopping site, or contact the retailer from which you purchased the product.
  • The power cord provided may differ depending upon the region.

Supported Drivers and Software

You can download and install the latest version from the LGE website (www.lg.com).

Drivers and Software Installation Priority
Monitor Driver Recommended
OnScreen Control Recommended
Dual Controller Optional

Product and Button Description

How to Use the Joystick Button
You can easily control the functions of the monitor by pressing the joystick button or moving it left/right/up/down with your finger.

Basic Functions
Power on Press the joystick button once with your finger to turn on the monitor.
Power off Press and hold the joystick button once more than 5 seconds with your finger to turn off the monitor.
Volume control You can control the volume by moving the joystick button left/right.

NOTE

  • The joystick button is located at the bottom of the monitor.

Moving and Lifting the Unit

When moving or lifting the monitor, follow these instructions to prevent the monitor from being scratched or damaged and to ensure safe transportation, regardless of its shape or size.

  • Place the monitor in the original box or packing material before attempting to move it.
  • Before moving or lifting the monitor, disconnect the power cord and all other cables.
  • Hold the bottom and side of the monitor frame firmly. Do not hold the panel itself.
  • When holding the monitor, the screen should face away from you to prevent it from being scratched.
  • When transporting the monitor, do not expose the monitor to shock or excessive vibration.
  • When moving the monitor, keep it upright and never turn the monitor on its side or tilt it sideways.

  • Avoid touching the monitor screen as much as possible.
    • This may result in damage to the screen or some of the pixels used to create images.
  • If you use the monitor panel without the stand base, its joystick button may cause the monitor to become unstable and fall, resulting in damage to the monitor or human injury. In addition, this may cause the joystick button to malfunction.

Installing on a Table

  • Lift the monitor and place it on the table in an upright position. Place the monitor at least 100 mm away from the wall to ensure sufficient ventilation.

  • Unplug the power cord before moving or installing the monitor. There is risk of electric shock.
  • Make sure to use the power cord that is provided in the product package and connect it to a grounded power outlet.
  • If you need another power cord, please contact your local dealer or the nearest retail store.

Adjusting the Stand Height

  1. Place the monitor mounted on the stand base in an upright position.
  2. Handle the monitor with both hands for safety.

  • When adjusting the screen height, do not place your hand on the stand body to avoid injury to your fingers.

Adjusting the Angle

  1. Place the monitor mounted on the stand base in an upright position.
  2. Adjust the angle of the screen.

The angle of the screen can be adjusted forward or backward from -5° to 20° for a comfortable viewing experience.

  • To avoid injury to the fingers when adjusting the screen, do not hold the lower part of the monitor's frame as illustrated below.
  • Be careful not to touch or press the screen area when adjusting the angle of the monitor.

information NOTE

  • The left or right side of the monitor head can be slightly rotated up or down (up to 3°). Adjust the horizontal level of the monitor head.

Using the Kensington Lock

The connector for the Kensington security system is located at the bottom of the monitor.
For more information on installation and usage, refer to the Kensington lock owner's manual or visit the website at http://www.kensington.com.
Connect the monitor to a table using the Kensington security system cable.

information NOTE

  • The Kensington security system is optional. You can obtain optional accessories from most electronics stores.

Installing the Wall Mount Plate

This monitor meets the specifications for the wall mount plate or other compatible

information NOTE

  • The wall mount plate is sold separately.
  • For more information on installation, refer to the wall mount plate's installation guide.
  • Be careful not to apply too much force while mounting the wall mount plate as it may cause damage to the screen.
  • Remove the stand before installing the monitor on a wall mount by performing the stand attachment in reverse.

Installing on the Wall


Install the monitor at least 100 mm away from the wall and leave about 100 mm of space at each side of the monitor to ensure sufficient ventilation. Detailed installation instructions can be obtained from your local retail store. Alternatively, please refer to the manual for how to install and set up a tilting wall mounting bracket.


To install the monitor to a wall, attach a wall mounting bracket (optional) to the back of the monitor.

Make sure that the wall mounting bracket is securely fixed to the monitor and to the wall.

  1. If you use screws longer than the standard length, it may damage the inside of the product.
  2. A non-VESA standard screw may damage the product and cause the monitor to fall. LG Electronics is not liable for any accidents relating to the use of nonstandard screws.
Wall Mount (mm) 100 x 100
Standard screw M4 x L10
Number of screws 4
Wall Mount Plate (Optional)
LSW 149

information NOTE

  • Use the screws specified by VESA standards.
  • The wall mount kit includes the installation guide and all necessary parts.
  • The wall mounting bracket is optional. You can obtain optional accessories from your local dealer.
  • The length of the screw may differ for each wall mounting bracket. Be sure to use the proper length.
  • For more information, please refer to the user manual for the wall mounting bracket.

  • Unplug the power cord before moving or installing the monitor to avoid electric shock.
  • Installing the monitor on the ceiling or on a slanted wall may result in the monitor falling off, which could lead to injury. Use an authorized LG wall mount and contact the local dealer or qualified personnel.
  • Applying excessive force when tightening screws may cause damage to the monitor. Damage caused in this way will not be covered by the product warranty.
  • Use the wall mounting bracket and screws that conform to VESA standards. Damage caused by the use or misuse of inappropriate components will not be covered by the product warranty.
  • When measured from the back of the monitor, the length of each installed screw must be 8 mm or less.

USING THE DEVICE

  • Illustrations in this manual may differ from the actual product.

Press the joystick button, go to SettingsInput, and then select the input option.

  • Do not press the screen for a prolonged time. This may cause image distortion.
  • Do not display a still image on the screen for a prolonged time. This may cause image retention. Use a screensaver if possible.

information NOTE

  • When connecting the power cord to the outlet, use a grounded (3-hole) power strip or a grounded power outlet.
  • The monitor may flicker when turned on in an area where the temperature is low. This is normal.
  • Sometimes red, green, or blue spots may appear on the screen. This is normal.

Connecting to a PC

  • This monitor supports the *Plug and Play feature.

* Plug and Play: A feature that allows you to add a device to your computer without having to reconfigure anything or install any manual drivers.

HDMI Connection

Transmits digital video and audio signals from your PC to the monitor.

  • Using a DVI to HDMI / DP (DisplayPort) to HDMI cable may cause compatibility issues.
  • Use a certified cable with the HDMI logo attached. If you do not use a certified HDMI cable, the screen may not display or a connection error may occur.
  • Recommended HDMI cable types
    • High-Speed HDMI cable
    • High-Speed HDMI cable with Ethernet

DisplayPort Connection

Transmits digital video and audio signals from your PC to the monitor.

information NOTE

  • There may be no video or audio output depending on the DP (DisplayPort) version of the PC.
  • If you are using a Mini DisplayPort output graphics card, use a Mini DP to DP (Mini DisplayPort to DisplayPort) cable or gender that supports DisplayPort 1.4. (sold separately)

Connecting Peripherals

USB Device connection

The USB port on the product functions as a USB hub.

information NOTE

  • It is recommended you install all Windows Updates to keep your Windows up-todate before connecting to the product for use.
  • Peripheral devices are sold separately.
  • A keyboard, mouse, or USB device can be connected to the USB port.
  • The charging speed may vary depending on the device.
  • To use USB Downstream port of monitor, user must connect Upstream port of monitor to Host PC using USB C-C or USB C-A cable.
  • When the USB C-C cable is connected between Upstream port of monitor and Host PC, the Downstream port of monitor support USB 2.0 device.
  • When the USB C-A cable is connected between Upstream port of monitor and Host PC, the Downstream port of monitor support USB 3.0 device. However, Host PC must support USB 3.0 function.


Cautions When Using a USB Device

  • A USB device with an automatic recognition program installed, or that uses its own driver, may not be recognized.
  • Some USB devices may not be supported or may not work properly.
  • It is recommended to use a USB hub or hard disk drive with power supplied. (If the power supply is not adequate, the USB device may not be recognized properly.)

Connecting Headphones

Connect peripherals to the monitor via the headphones port.

information NOTE

  • Peripheral devices are sold separately.
  • If you use angled earphones, it may cause a problem with connecting another external device to the monitor. Therefore, it is recommended to use straight earphones.
  • Depending on the audio settings of the PC and external device, headphones and speaker functions may be limited.

USER SETTINGS

information 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.
  2. Move the joystick up/down ( ) and left/right ( ) to set the options.
  3. Press the joystick button once more to exit the
Button Menu Status Description
Main menu disabled Enables the main menu.
Main menu enabled Exits the main menu.
(Holding down the button to turn off the monitor. You can turn off the monitor this way at any time, including when the OSD is on.)
Main menu disabled Adjusts the monitor volume level.
Main menu enabled Enters the Input features.
Main menu disabled Adjusts the monitor volume level.
Main menu enabled Enters the Settings feature.
Main menu disabled Adjusts the monitor brightness level.
Main menu enabled Turns off the monitor.
Main menu disabled Adjusts the monitor brightness level.
Main menu enabled Enters the Picture Mode feature.

Main Menu Description
Input Sets input mode.
Power Off Turns off the monitor.
Settings Configures the screen settings.
Picture Mode Sets the picture mode.
Exit Exits the main menu.
  1. To view the OSD menu, press the joystick button on the right back of the monitor and then enter the Settings.
  2. Move the joystick up/down and left/right to set the options.
    Menu Settings
  3. To return to the upper menu or set other menu items, move the joystick to or pressing ( ) it.
  4. If you want to exit the OSD menu, move the joystick to until you exit.

information NOTE

  • : On
  • : Off

Quick Settings

Settings > Quick Settings Description
Brightness Adjusts the brightness of the screen.
Contrast Adjusts the contrast of the screen.
Volume Adjusts the volume.
information NOTE
  • You can adjust Mute / Unmute by moving the joystick button to in the Volume menu.
Color Temp Set your own color temperature.
Custom The user can adjust it to red, green, or blue by customization.
Warm Sets the screen color to a reddish tone.
Medium Sets the screen color to between a red and blue tone.
Cool Sets the screen color to a bluish tone.
Manual The user can fine-tune the color temperature.

Input

Settings > Input Description
Input List Selects the input mode.
Auto Input Switch When automatic input switch is set to On, display will automatically switch to new input when connected.
On Enables Auto Input Switch.
Off Disables Auto Input Switch.
Aspect Ratio Adjusts the aspect ratio of the screen.
Full Wide Displays the video in widescreen, regardless of the video signal input.
16:9 Displays the video in 16:9.
4:3 Displays the video in 4:3.
PBP Displays the screens of two input modes on one monitor.
Main/Sub Screen Change Toggles between the main screen and sub screen in PBP mode.
Main/Sub Sound Change Toggles between the audio of the main screen and sub screen in PBP mode.

[PBP]

Settings > Input Description
Input List Displays the screens of two input modes on one monitor.
Main Input List Please refer to the table below for possible PBP combinations.
Sub Input List
PBP Connection Sub Screen (Right)
HDMI 1 HDMI 2 DisplayPort USB-C
Main Screen (Left) HDMI 1 -
HDMI 2 -
DisplayPort -
USB-C -
Aspect Ratio Adjusts the aspect ratio of the screen.
Main Aspect Ratio Full Wide Displays the video to fit the PBP screen, regardless of the video signal input.
Original Displays the video in the aspect ratio of the video signal input on the PBP screen.
Sub Aspect Ratio Full Wide Displays the video to fit the PBP screen, regardless of the video signal input.
Original Displays the video in the aspect ratio of the video signal input on the PBP screen.
PBP You can disable the feature that displays images from two input modes simultaneously on one monitor.
Main/Sub Screen Change Toggles between the main screen and sub screen in PBP mode.
Main/Sub Sound Change Toggles between the audio of the main screen and sub screen in PBP mode.

information NOTE

  • The Picture Mode that can be set depends on the Input signal.

[Picture Mode on SDR (Non-HDR) signal]

Settings > Picture Description
Picture Mode Custom Allows the user to adjust each element.
Vivid Heightens contrast, brightness and sharpness to display vivid images.
HDR Effect Optimizes the screen for high dynamic range.
Reader Optimizes the screen for reading documents. You can brighten the screen in the OSD menu.
Cinema Optimizes the screen to improve the visual effects of a video.
FPS This mode is optimized for FPS games.
RTS This mode is optimized for RTS Game.
Color Weakness This mode is for users who cannot distinguish between red and green. It enables users with color weakness to easily distinguish between the two colors.

[Picture Mode on HDR signal]

Settings > Picture Description
Picture Mode Custom Allows the user to adjust each element.
Vivid Optimized the screen for HDR vivid colors.
Cinema Optimized the screen for HDR video.
FPS This mode is optimized for FPS games. It is suitable for very dark FPS games.
RTS This mode is optimized for RTS Game.
information NOTE
  • HDR content may not display correctly depending on Windows 10/ macOS settings, please check HDR On/Off settings in Windows.
  • When the HDR function is turned on, the characters or picture quality may be poor according to Graphic card performance.
  • While the HDR function is on, screen flickering or cracking may occur when changing the monitor input or power on/off according to Graphic card performance.
Picture Adjust Brightness Adjusts the brightness of the screen.
Contrast Adjusts the contrast of the screen.
Sharpness Adjusts the sharpness of the screen.
SUPER RESOLUTION+ High Optimizes the screen for crystal clear images. Best for high-definition video or games.
Middle Optimizes the screen for comfortable viewing, with images at the middle level between the low and high modes. Best for UCC or SD videos.
Low Optimizes the screen for smooth and natural images. Best for still images or images with less movement.
Off Displays in the most common setting. Disables SUPER RESOLUTION+.
information NOTE
  • Because this is a function to increase the sharpness of low resolution pictures, it is not recommended to use the function for normal text or for desktop icons. Doing so may result in unnecessarily high sharpness.
Black Level Sets the offset level.
  • Offset: as a reference for a video signal, this is the darkest color the monitor can display.
High Keeps the current contrast ratio of the screen.
Low Lowers the black levels and raises the white levels from the current contrast ratio of the screen.
DFC Adjusts the brightness automatically according to the screen.
Game Adjust Response Time Sets a response time for displayed pictures based on the speed of the screen.
For a normal environment, it is recommended that you use Fast.
For a fast-moving picture, it is recommended that you use Faster.
Once Faster Mode is selected, Motion Blur may occur depending on the content.
Faster Sets the response time to Faster.
Fast Sets the response time to Fast.
Normal Sets the response time to Normal.
Off Disables the feature.
FreeSync

Provides seamless and natural images by synchronizing the vertical frequency of the input signal with that of the output signal.

  • Supported Interface: DisplayPort, HDMI
  • Supported Graphic Card: A graphic card that supports AMD's FreeSync is necessary.
  • Supported Version: Make sure to update the graphic card to the latest driver.
  • For more information and requirement, refer to AMD website at http://www.amd.com/FreeSync
Extended Enables wider frequency range of FreeSync function than basic mode.
The screen may flicker during the game play.
Basic Enables basic frequency range of FreeSync function.
Off FreeSync function off.
Black Stabilizer You can control the black contrast to have better visibility in dark scenes.
You can easily distinguish objects on dark game screens.
Color Adjust Gamma Mode 1,
Mode 2,
Mode 3
The higher the gamma value, the darker the image becomes. Likewise, the lower the gamma value, the lighter the image becomes.
Mode 4 If you do not need to adjust the gamma settings, select Mode 4.
Color Temp Set your own color temperature.
Custom The user can adjust it to red, green, or blue by customization.
Warm Sets the screen color to a reddish tone.
Medium Sets the screen color to between a red and blue tone.
Cool Sets the screen color to a bluish tone.
Manual The user can fine-tune the color temperature.
Red/Green/Blue You can customize the picture color using red, green, and blue colors.
Six Color Meets the user requirements for colors by adjusting the hue and saturation of the six colors (red, green, blue, cyan, magenta, and yellow) and then saving the settings.
Hue Adjusts the tone of the screen colors.
Saturation Adjusts the saturation of the screen colors. The lower the value, the less saturated and brighter the colors become. The higher the value, the more saturated and darker the colors become.
Picture Reset Do you want to reset your picture settings? No Cancel the select.
Yes Returns to the default settings.

General

Settings > General Description
Language Sets the menu screen to the desired language.
SMART ENERGY SAVING Conserve energy by using luminance compensation algorithm.
High Saves energy using the high-efficiency SMART ENERGY SAVING feature.
Low Saves energy using the low-efficiency SMART ENERGY SAVING feature.
Off Disables the feature.
information NOTE
  • The value of energy saving data may differ depending on panel and panel suppliers.
  • If you select the option of SMART ENERGY SAVING is High or Low, monitor luminance become lower or higher depend on source.
Deep Sleep Mode When Deep sleep mode is enabled, power consumption is minimized while the monitor is in standby mode.
On Enables Deep sleep Mode.
Off Disables Deep sleep Mode.
Power LED On The power LED turns on automatically.
Off The power LED turns off.
Automatic Standby Feature that automatically turns off the monitor when there is no movement on the screen for a period of time. You can set a timer for the auto-off function. (8 H, 6 H, 4 H, and Off)
Input Compatibility Version Set Input Compatibility Version to the same version as the connected external device.
  • In case of DisplayPort and USB-C set to 1.4 or over to use the HDR function.
  • In case of HDMI input, set to 2.0 or over to use the HDR function.
Buzzer This feature lets you set the sound generated from Buzzer when your monitor powers on.
On Enables your monitor's Buzzer.
Off Disables your monitor's Buzzer.
OSD Lock This feature disables the configuration and adjustment of menus.
On Enables OSD Lock.
Off Disables OSD Lock.
information NOTE
  • All features are disabled except Brightness, Contrast, Volume, Input List, Auto Input Switch, Aspect Ratio, PBP, OSD Lock and Information.
Information The following display information will be shown; Total Power On Time, Resolution.
Reset to Initial Settings Do you want to reset your settings? No Cancel the select.
Yes Returns to the default settings.

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 cable connection and press the power button.
Is the power on and the power LED displaying white?
  • Check that the connected input is enabled (Settings > Input).
Is the power LED blinking?
  • If the monitor is in sleep mode, move the mouse, or press any key on the keyboard, to switch the display on.
  • Check if the computer is turned on.
Is the The screen is not currently set to the recommended resolution. If you have no video or the screen flickers, see the troubleshooting guide in the product owner's manual. message being displayed?
  • This occurs when signals transferred from the PC (graphics card) are out of the recommended horizontal or vertical frequency range of the monitor. Please see the Product Specification section of this manual to set the appropriate frequency.
Is the No Signal message being displayed?
  • This is displayed when the signal cable between the PC and the monitor is missing or disconnected. Check the cable and reconnect it.
Have you installed the display driver?
  • Be sure to install the display driver from our web site: http://www.lg.com.
  • Make sure to check if the graphics card supports Plug and Play function.

Some features are disabled

Are some functions not available when you press the Menu button?
  • The OSD is locked. Go to Settings > General and set OSD Lock to Off.

The screen retains an image

Does image sticking occur even when the monitor is turned off?
  • Displaying a still image for a prolonged time may cause damage to the screen, resulting in the retention of the image.
  • To extend the lifetime of the monitor, use a screensaver.

Screen display is unstable and shak

Images displayed on the unit leave shadow trails

Did you select the appropriate resolution?
  • If the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Change the resolution to 1080p or the recommended resolution.

information NOTE

  • Vertical Frequency: In order to display an image, the screen must be refreshed dozens of times per second, like a fluorescent lamp. The number of times the screen is refreshed per second is called vertical frequency, or refresh rate, and is represented by Hz.
  • Horizontal Frequency: The time it takes to display one horizontal line is called the horizontal cycle. If 1 is divided by the horizontal interval, the result is the number of horizontal lines displayed per second. This is called horizontal frequency and is represented by kHz.
  • Check if the graphics card's resolution or frequency is within the range allowed by the monitor and set it to the recommended (optimal) resolution Control Panel > Display > Menu in Windows. (The settings may differ depending on the operating system (OS) you use.)
  • Not setting the graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed screen, a truncated display area or misalignment of the display.
  • The setting methods may be different depending on the computer or operating system, and some resolutions may not be available depending on the performance of the graphics card. If this is the case, contact the manufacturer of the computer or graphics card for assistance.
  • Some graphics cards may not support 1920 x 1080 resolution. If the resolution cannot be displayed, contact the manufacturer of your graphics card.

The display color is abnormal

Does the display appear discolored (16 colors)?
  • Set the color to 24 bit (true color) or higher. In Windows, go to Control Panel > Display > Menu > Color Quality. (The settings may differ depending on the operating system (OS) you use.)
Does the display color appear unstable or monochrome?
  • Check if the signal cable is connected properly. Reconnect the cable or reinsert the PC's graphics card.
Are there spots on the screen?
  • When using the monitor, pixilated spots (red, green, blue, white, or black) may appear on the screen. This is normal for an LCD screen. It is not an error, nor is it related to the monitor's performance.

No sound from the headphone port

Are images displayed using DP (DisplayPort) or HDMI input without sound?
  • Make sure that the headphone port connections are made properly.
  • Try increasing the volume with the joystick.
  • Set the audio output of the PC to the monitor you are using. On Microsoft Windows, go to Control Panel > Hardware and Sound > Sound > set the Monitor as default device. (The settings may differ depending on the operating system (OS) you use.)

PRODUCT SPECIFICATION

LCD Screen Color Depth 8-bit / 10-bit color is supported.
Resolution Max Resolution 3440 x 1440 @ 100 Hz (HDMI)
3440 x 1440 @ 100 Hz (DP / USB-C)
Recommended Resolution 3440 x 1440 @ 100 Hz (HDMI)
3440 x 1440 @ 100 Hz (DP / USB-C)
Power Sources Power Rating 19 V 7.0 A
Power Consumption
(Typical)
On mode: 48 W (Typical)*
Sleep Mode (Standby Mode): ≤ 0.5 W **
Off Mode: ≤ 0.3 W
AC/DC Adapter Output: 19 V 7.37 A
Environmental Conditions Operating Conditions Temperature 0°C to 40°C
Humidity Less than 80%
Storing Conditions Temperature -20°C to 60°C
Humidity Less than 85%
Dimensions Monitor Size (Width x Height x Depth)
With Stand 809.0 x 568.3 x 260.0 (mm)
Without Stand 809.0 x 358.9 x 91.5 (mm)
Weight (Without Packaging) With Stand 6.9 kg
Without Stand 5.0 kg

Specifications are subject to change without notice.
The ~ symbol means alternating current, and the symbol means direct current.
The Power Consumption level can be different by operating condition and monitor setting.
* The On mode power consumption is measured with LGE test standard (Full White pattern, Maximum resolution).
** The monitor goes to the Sleep Mode in a couple of minutes(Max 5 minutes).

Factory Support Mode

(Preset Mode, PC

(DisplayPort / USB-C)
Preset Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) Polarity (H/V) Remarks
640 x 480 31.469 60 -/-
800 x 600 37.879 60 +/+
1024 x 768 48.363 60 -/-
1920 x 1080 67.5 60 +/-
1720 x 1440 88.739 59.92 +/- DP / USB-C 1.2 PBP Preferred timing
3440 x 1440 88.84 59.99 +/-
3440 x 1440 127.35 84.96 +/-
3440 x 1440 151 100 +/- DP / USB-C 1.2 Preferred timing
DP / USB-C 1.4 Preferred timing
(HDMI)
Preset Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) Polarity (H/V) Remarks
640 x 480 31.469 60 -/-
800 x 600 37.879 60 +/+
1024 x 768 48.363 60 -/-
1920 x 1080 67.5 60 +/-
1720 x 1440 88.739 59.92 +/- HDMI 1.4 PBP Preferred timing
3440 x 1440 43.76 29.95 +/-
3440 x 1440 73.63 49.95 +/- HDMI 1.4 Preferred timing
3440 x 1440 127.35 84.96 +/-
3440 x 1440 151 100 +/- HDMI 2.0 Preferred timing

If you use an input timing that is outside the supported frequency, you may experience poor response speed or image quality.

HDMI Timing

(Video)

Preset Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) Remarks
480P 31.5 60
720P 45 60
1080P 67.5 60
2160P 135 60

The model and serial number of the product are located on the back and on one side of the product.
Record them in case you ever need service.

www.lg.com

Documents / Resources

References

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download LG 34WR55QC, 34BR55QC - LCD COMPUTER MONITOR Manual

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