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. 34WN780 34BN780 www.lg.com Copyright © 2019 LG Electronics Inc. All Rights Reserved.
TABLE OF CONTENTS LICENSE Each model has different licenses. Visit www.lg.com for more information on the license. ENGLISH LICENSE....................................................... 2 ASSEMBLING AND PREPARING................... 3 The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. USING THE MONITOR................................. 13 USER SETTINGS.........................................
ASSEMBLING AND PREPARING Supported Drivers and Software You can download and install the latest version from the LGE website (www.lg.com). CAUTION Drivers and Software Installation Priority Monitor Driver Recommended OnScreen Control Recommended Dual Controller ENGLISH •• 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.
Product and Button Description Moving and Lifting the Monitor ENGLISH 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.
Installing on a Table •• Lift the monitor and place it on the table in an upright position. Place the monitor at least 100 mm (3.94 inches) away from the wall to ensure sufficient ventilation. CAUTION ENGLISH •• 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.
How to fix a clamp How to install on tables with different thickness levels 1 After positioning the stand on the table, secure it by turning the handle. •• For tables without a protrusion -- The table should be less than 90 mm (3.5 inches) thick. ≤ 40 mm (1.5 inches) ENGLISH Table ≤ 90 mm (3.5 inches) 30 ~ 65 mm (1.1 inches ~ 2.
CAUTION 55 ~ 90 mm (2.1 inches ~ 3.5 inches) ≥ 95 mm (3.7 inches) ≥ 75 mm (2.9 inches) ENGLISH •• Stands that are not fully engaged to the table may allow the monitor to wobble or fall over. •• Make sure the table is solid and stable enough to fully support installation of the monitor. Tables made of fragile materials such as glass may break. •• For tables with a protrusion -- If the protrusion is located more than 95 mm (3.
Swivel stand Swivel the monitor left and right within 280 degrees to fit your view.
Leveling the Screen Adjusting the Stand Height If the screen appears crooked to one side after the product has been placed in position, straighten the angle horizontally as follows. 1 Make sure to hold and move the monitor with both hands. ENGLISH Max. 130.0 mm (5.1 inches) WARNING •• To avoid injury when adjusting the height, do not put your hands on the stand.
Adjusting the Angle ENGLISH Adjust the angle of the screen. The angle of the screen can be adjusted forward or backward from -25 ° to 25 ° for a comfortable viewing experience. 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.
Installing the Wall Mount Plate This monitor meets the specifications for the wall mount plate or other compatible devices. NOTE Wall Mount (mm) Standard screw Number of screws Wall Mount Plate (Optional) 100 x 100 M4 x L10 4 LSW 149 ENGLISH •• 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.
CAUTION ENGLISH 12 •• 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.
USING THE MONITOR •• Illustrations in this manual may differ from the actual product. Press the joystick button, go to Settings Input, and then select the input option. Transmits digital video and audio signals from your PC to the monitor. 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 DisplayPort1.2 or 1.4.
Connecting AV Devices HDMI Connection HDMI transmits digital video and audio signals from your AV device to the monitor. ENGLISH NOTE •• 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.
USER SETTINGS NOTE ENGLISH •• 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 main menu. Joystick Button Button Menu Status Description Main menu disabled Enables the main menu. Main menu enabled Exits the main menu.
Main Menu Features Main Menu ENGLISH Power Off Input Exit Settings Picture Mode 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. Menu Settings 1 2 3 4 To view the OSD menu, press the joystick button at the bottom of the monitor and then enter the Settings. Move the joystick up/down and left/right to set the options.
Quick Settings Settings > Quick Settings Brightness Volume Adjusts the contrast and brightness of the screen. ENGLISH Contrast Description Adjusts the volume level. NOTE •• You can adjust Mute / Unmute by moving the joystick button to in the Volume menu. Color Temp MaxxAudio 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.
Picture NOTE •• The Picture Mode that can be set depends on the Input signal. ENGLISH Picture Mode on SDR (Non HDR) signal Settings > Picture Picture Mode Description 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.
Picture Mode on HDR signal Settings > Picture Picture Mode Description 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. ENGLISH Custom NOTE •• HDR content may not display correctly depending on Windows 10 OS settings, please check HDR On/Off settings in Windows.
Settings > Picture Picture Adjust Description Brightness Contrast Adjusts the color contrast and brightness of the screen. ENGLISH 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.
Settings > Picture Game Adjust Description Response Time Faster Sets the response time to faster. Fast Sets the response time to fast. Normal Sets the response time to normal. Off Does not use the response time improvement feature. ENGLISH FreeSync 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 there is a lot of motion, it is recommended that you use Faster.
Settings > Picture Color Adjust Description Gamma ENGLISH Color Temp Picture Reset 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. 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.
General Settings > General Description 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. ENGLISH Language NOTE •• The value of energy saving data may differ depending on panel and panel suppliers.
Settings > General Buzzer ENGLISH 24 OSD Lock Description 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. This feature disables the configuration and adjustment of menus. On Enables OSD Lock. Off Disables OSD Lock. Information The following display information will be shown; Total Power On Time, Resolution.
TROUBLESHOOTING Nothing is displayed on the screen. •• 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 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.
Do you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message? Have you installed the display driver? ENGLISH 26 •• 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. No sound from the headphone port. Are images displayed without sound? •• Make sure that the headphone port connections are made properly. •• Try increasing the volume with the joystick.
PRODUCT SPECIFICATION 34WN780 8-bit color is supported. Resolution Max Resolution 3440 x 1440 @ 75 Hz (HDMI) 3440 x 1440 @ 75 Hz (DP) Recommended Resolution 3440 x 1440 @ 60 Hz (HDMI) 3440 x 1440 @ 60 Hz (DP) Power Sources ENGLISH Color Depth Power Rating 19 V Power Consumption (Typical) On mode: 60 W Typ. (Outgoing condition) * Sleep Mode (Standby Mode) ≤ 0.5 W (HDMI / DP input Condition) ** Off Mode ≤ 0.3 W 3.3 A AC/DC Adapter DA-65G19, manufactured by Asian Power Devices Inc.
Dimensions ENGLISH 28 Weight (Without Packaging) Monitor Size (Width x Height x Depth) With Stand 816.5 x 612.4 x 406.4 (mm) 32.1 x 24.1 x 16 (inches) Without Stand 816.5 x 365.3 x 45.5 (mm) 32.1 x 14.3 x 1.7 (inches) With Stand 10.8 (kg) 23.7 (lbs) Without Stand 6.9 (kg) The specifications are subject to change without notice. The power consumption level can be different by operating condition and monitor setting.
PRODUCT SPECIFICATION 34BN780 8-bit color is supported. Resolution Max Resolution 3440 x 1440 @ 75 Hz (HDMI) 3440 x 1440 @ 75 Hz (DP) Recommended Resolution 3440 x 1440 @ 60 Hz (HDMI) 3440 x 1440 @ 60 Hz (DP) Power Rating 19 V Power Consumption (Typical) On mode: 25.8 W Typ. (ENERGY STAR® standard) * Sleep Mode (Standby Mode) ≤ 0.5 W (HDMI / DP input Condition) ** Off Mode ≤ 0.3 W Power Sources 3.3 A AC/DC Adapter DA-65G19, manufactured by Asian Power Devices Inc.
Weight (Without Packaging) ENGLISH 30 With Stand 10.8 (kg) 23.7 (lbs) Without Stand 6.9 (kg) The specifications are subject to change without notice. The power consumption level can be different by operating condition and monitor setting. * The On mode power consumption is measured with ENERGY STAR® test standard. ** The monitor goes to the Sleep Mode in a couple of minutes(Max 5 minutes). 15.
Factory Support Mode (Preset Mode, PC) DisplayPort/ HDMI Horizontal Frequency (kHz) Vertical Frequency (Hz) Polarity (H/V) 640 x 480 31.469 59.94 -/- 720 x 480 31.47 59.94 +/+ Remarks 800 x 600 37.879 60.317 +/+ 1024 x 768 48.363 60 -/- 1152 x 864 54.347 60.05 +/+ 1280 x 720 45 60 +/+ 1280 x 800 49.702 60 -/+ 1280 x 1024 63.981 60.02 +/+ 1600 x 900 60 60 +/+ 1680 x 1050 65.29 59.954 -/+ 1920 x 1080 67.5 60 +/- 2560 x 1080 66.66 60 -/- 3440 x 1440 43.
HDMI Timing (Video) ENGLISH Preset Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) 480P 31.5 60 720P 45 60 1080P 67.
Supplier’s Declaration of Conformity Trade Name LG Responsible Party LG Electronics USA, Inc. Address 111 Sylvan Avenue, North Building, Englewood Cliffs,NJ 07632 E-mail lg.environmental@lge.com The model and serial number of the product are located on the back and on one side of the product. Record them below in case you ever need service. Model Serial No.
