Owner's Manual
IPS LED MONITOR
(LED MONITOR)
Please read the safety information carefully
before using the product.
IPS LED Monitor (LED Monitor) Model List
31MU97
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lICense
3
lICense
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI
logo are trademarks or registered trademarks of HDMI Licensing LLC in the
United States and other countries.
VESA, VESA logo, DisplayPort compliance logo and DisplayPort
compliance logo for dual-mode source devices are all registered trademarks of
the Video Electronics Standards Association.
MaxxAudio and additional MAXX trademarks are trademarks and/or registered
trademarks of Waves Audio Ltd.
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asseMblInG anD PRePaRInG
4
asseMblInG anD PRePaRInG
Product Composition
Please check whether all the components are included in the box before using the product. If there are
any missing components, contact the retailer where you purchased the product. Note that the product and
related components may look different from those shown here.
CD (owner's Manual /
software) / Guides /
Power cord
HDMI cable
Mini DisplayPort Cable
Cards
or
a-b Type Usb 3.0 Cable
stand body
stand base
2 screws
(M4 x 10)
Cable Holder
CaUTIon
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 recommend 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.
y
y
y
y
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.
y
y
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.
y
y
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asseMblInG anD PRePaRInG
5
Product and button Description
Power leD
on Power on
off Power off
y
y
Joystick button
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 with
your finger.
basic functions
Press the joystick button once with your finger to turn on the
monitor.
Power on
Press and hold the joystick button once with your finger to turn off
the monitor.
Power off
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.
Before turning on the monitor, please make sure that the switch on the rear side of product is On.
y
y
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asseMblInG anD PRePaRInG
6
Input Connector
On
Switch
AC-IN
H/P
HDMIIN1 HDMIIN2 mDP IN
DP IN
USB UP USB IN 1 USB IN 2 USB IN 3
5 V
1.1 A
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asseMblInG anD PRePaRInG
7
When moving the monitor, keep it upright and
never turn the monitor on its side or tilt it side-
ways.
y
y
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 trans-
portation, regardless of its shape or size.
CaUTIon
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.
Place the monitor in the original box or pack-
ing material before attempting to move it.
Before moving or lifting the monitor, discon-
nect the power cord and all other cables.
Hold the bottom and side of the monitor frame
firmly. Do not hold the panel itself.
y
y
y
If you use the monitor panel without the stand
base, its joystick button may cause the moni-
tor to become unstable and fall, resulting in
damage to the monitor or human injury. In
addition, this may cause the joystick button to
malfunction.
y
When holding the monitor, the screen should
face toward you to prevent it from being
scratched.
When transporting the monitor, do not expose
the monitor to shock or excessive vibration.
y
y
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8
Installing the Monitor
CaUTIon
To protect the screen from scratches, cover
the surface with a soft cloth.
Illustrations in this document represent typi-
cal procedures, so they may look different
from the actual product.
y
y
assembling the stand
1
When tightening the screws after mounting
the stand base onto the stand hinge, be sure
to hold the stand base with your hand. Other-
wise, the product may fall, causing personal
injury or damage to the product.
y
Applying excessive force when tightening
screws may cause damage to the monitor.
Damage caused in this way will not be cov-
ered by the product warranty.
Do not carry the monitor upside down by just
holding the base. This may cause the moni-
tor 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.
y
y
y
stand body
2
stand base
noTe
You can disassemble the stand in the
reverse order of the assembly.
y
3
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9
Installing on a Table
adjusting the stand Height
Lift the monitor and place it on the table in an
Place the monitor mounted on the stand base
in an upright position.
1
1
2
upright position. Place the monitor at least
10 cm away from the wall to ensure sufficient
ventilation.
Push the Head downward and pull out the
Locking Pin.
10 cm
10 cm
Head
10 cm
10 cm
locking pin
Handle the monitor with both hands for safety.
3
4
Connect the power cord to the product before
connecting it to the wall outlet.
2
The height can be adjusted up to 140.0 mm.
140.0mm
Press the joystick button on the bottom of the
monitor to turn on the monitor.
3
CaUTIon
Unplug the power cord before moving or
installing the monitor. There is risk of electric
shock.
y
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10
CaUTIon
WaRnInG
Once the pin is removed, it is not necessary
to re-insert it to adjust the height.
y
When you adjust the angle, do not hold the
stand as shown on the following illustration.
You may injure your fingers.
y
WaRnInG
Do not put your fingers or
hand between the screen
and the base (chassis) when
adjusting the screen's height.
y
Be careful not to touch or press the screen
area when adjusting the angle of the monitor.
y
adjusting the angle
Place the monitor mounted on the stand base
in an upright position.
1
Adjust the angle of the screen. The angle of
2
the screen can be adjusted forward or back-
ward from -5° to 15° for a comfortable
viewing experience.
Tidying up Cables
15
-5
Arrange the cables using the cable holder as
shown in the illustration.
Rear
front
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11
R
otate the monitor clockwise as shown in the
3
Pivot feature
figure.
The pivot feature allows the monitor to rotate 90°
clockwise.
Head
Complete the installation by rotating the moni-
tor 90° as shown below.
4
stand
WaRnInG
To avoid scratching the stand base, make sure
that when rotating the monitor using the pivot
feature, the stand does not make contact with
the monitor.
y
WaRnInG
Raise the monitor to the maximum
height.
1
Take care when rotating the monitor if the
cable is connected.
y
To avoid injury when rotating the display, do
not place your fingers between the display and
the stand base.
y
Adjust the angle of the monitor in the direction
of the arrow as shown in the figure.
2
15°
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12
Using the Kensington lock
Detaching the stand body
The Kensington security system connector is
located at the back of the Monitor set.
For more information on installation and usage,
refer to the Kensington lock owner's manual or visit
Place the monitor's screen face down. To
protect the screen from scratches, cover the
surface with a soft cloth.
1
Using a screwdriver, remove the 2 screws and
detach the stand from the monitor.
2
Connect the monitor to a table using the Kensing-
ton security system cable.
noTe
The Kensington security system is optional.
You can obtain optional accessories from most
electronics stores.
y
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13
Installing the Wall Mount Plate
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.
y
y
This monitor meets the specifications for the wall
mount plate or other compatible devices.
Place the screen face down. To protect the
screen from scratches, cover the surface with
a soft cloth.
1
y
Using a screwdriver, remove the 2 screws and
detach the stand from the monitor.
2
Place the wall mount plate onto the monitor
and align it with the screw holes.
3
Tighten the four screws to fix the plate to the
monitor using a screwdriver.
4
Wall mount plate
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asseMblInG anD PRePaRInG
14
Wall Mount (A x B)
y
Installing on the Wall
Install the monitor at least 10 cm away from the
wall and leave about 10 cm of space at each side
of the monitor to ensure sufficient ventilation. De-
tailed 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.
noTe
Use the screws specified by VESAstandards.
The wall mount kit includes the installation guide
and all necessary parts.
y
y
10 cm
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.
y
y
10 cm
10 cm
For more information, please refer to the user
manual for the wall mounting bracket.
y
10 cm
To install the monitor to a wall, attach a wall mount-
ing bracket (optional) to the back of the monitor.
Make sure that the wall mounting bracket is se-
curely fixed to the monitor and to the wall.
If you use screws longer than the standard
length, it may damage the inside of the prod-
uct.
1
A non-VESA standard screw may damage the
2
product and cause the monitor to fall. LG Elec-
tronics is not liable for any accidents relating to
the use of non-standard screws.
Wall Mount (a x b)
stand screw
Required screws
100 x 100
M4 x 10 mm
4
Wall Mount Plate
RW120
(optional)
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15
CaUTIon
Unplug the power cord before moving or install-
ing 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 quali-
fied personnel.
y
y
Applying excessive force when tightening
screws may cause damage to the monitor. Dam-
age caused in this way will not be covered by
the product warranty.
y
y
y
y
To prevent injury, this apparatus must be
securely attached to the wall in accordance
with the instrallation instructions. (This only
pertains to Australia and New Zealand.)
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.
Wall Mount Plate
Back of the Monitor
Wall Mount Plate
Back of the Monitor
Screw
Dimensions
: M4 x L10
Max 8 mm
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UsInG THe MonIToR
16
Connecting to a PC
UsInG THe MonIToR
This monitor supports the *Plug and Play fea-
ture.
y
Press the joystick button, go to Menu → Easy con-
trol → Input, and then select the input option.
* Plug and Play: A feature that allows you to add a
device to your computer without having to recon-
figure anything or install any manual drivers.
CaUTIon
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.
y
y
HDMI Connection
Transmits digital video and audio signals from your
PC to the monitor. Connect your PC to the monitor
using the HDMI cable as shown in the illustration
below.
noTe
When connecting the power cord to the out-
let, 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.
y
y
y
HDMIIN1 HDMIIN2
Sometimes red, green or blue spots may ap-
pear on the screen. This is normal.
CaUTIon
Make sure to use the supplied HDMI cable of
the product. Otherwise, this may cause the
device to malfunction.
Connecting your PC to the monitor using the
HDMI cable may cause device compatibility
issues.
y
y
y
Using a DVI to HDMI / DP(DisplayPort) to
HDMI cable may cause compatibility issues.
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UsInG THe MonIToR
17
(Mini) DisplayPort Connection
Connecting aV Devices
Transmits digital video and audio signals from your
PC to the monitor. Connect the monitor to your PC
using the displayport cable as shown in the illustra-
tion below:
HDMI Connection
HDMI transmits digital video and audio signals
from your AV device to the monitor. Connect your
AV device to the monitor using the HDMI cable as
shown in the illustration below.
DisplayPort
DP IN
HDMIIN1 HDMIIN2
mDP OUT
Mini DisplayPort
mDP IN
noTe
Make sure to use the supplied HDMI cable of
the product. Otherwise, this may cause the
device to malfunction.
Using a DVI to HDMI / DP(DisplayPort) to
HDMI cable may cause compatibility issues.
y
y
DP OUT
noTe
There may be no video or audio output de-
pending on the DP (DisplayPort) version of the
PC.
Make sure to use the supplied Mini Display-
Port cable of the product. Otherwise, this may
cause the device to malfunction.
If you use generic cables not certified by LG,
the screen may not display or there may be
image noises.
y
y
y
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UsInG THe MonIToR
18
To use USB 3.0, connect the A-B type USB 3.0
cable of the product to the PC.
Connecting Peripherals
Peripheral devices connected to the USB IN port
can be controlled from the PC.
Usb Cable connection - PC
The USB port on the product functions as a USB
hub.
(sold separately)
noTe
Make sure to install the most recent Windows
OS service pack before using the product.
Peripheral devices are sold separately.
A keyboard, mouse, or USB device can be
connected to the USB port.
y
y
y
USB UP USB IN 1 USB IN 2 USB IN 3
5 V
1.1 A
CaUTIon
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.
y
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.)
y
y
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UsInG THe MonIToR
19
Connecting Headphones
Connect peripherals to the monitor via the head-
phones port. Connect as illustrated.
H/P
(sold separately)
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 recom-
mended to use Straight earphones.
y
y
angled
straight
Depending on the audio settings of the PC
and external device, headphones and speaker
functions may be limited.
y
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InsTallInG THe lG MonIToR sofTWaRe
20
InsTallInG THe lG MonIToR sofTWaRe
Insert the software CD included in the product packaging into your PC's CD drive and install the LG Monitor
Software.
The installation screen images are for reference only. The actual installation screen images may vary de-
pending on the model.
Follow the instructions to proceed with the
installation.
Set up Internet Explorer as the default web
browser.
3
1
Check the I accept the terms of the agree-
ment checkbox on the License Agreement
screen and then click the next button.
4
Click lG Monitor software on the CD's main
screen. When the file download window ap-
pears, click Run. (Although the screen below
may differ depending on your operating sys-
tem or Internet Explorer version, the installa-
tion methods are the same.)
2
Select the program that you want to install.
5
CaUTIon
Windows 7 must be updated to Service Pack
1 or higher.
y
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InsTallInG THe lG MonIToR sofTWaRe
21
The program you selected on the Select Fea-
tures page will install automatically.
8
noTe
screen split This program automatically splits
the program window as desired.
True Color Pro This program calibrates the
precise color output of the monitor to suit your
needs.
y
y
The LG Monitor Software starts the installation
as shown below:
6
When the installation is complete, restart your
system.
9
If the TUSB3410 driver has not been installed,
the driver will be installed automatically. Select
Install this driver software anyway (I) if the
Windows security message is displayed as be-
low.
7
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InsTallInG THe lG MonIToR sofTWaRe
22
noTe
noTe
To use the True Color Pro function, you must
purchase the supported calibrator.
For details on supported calibrators and
graphic cards, see the True Color Pro user
guide.
y
y
When you run the True Color Pro software,
the True Color Pro icon [ ] appears in the
system tray at the right bottom of the PC
screen.
y
If you have changed the input port, it is recom-
mend that you calibrate the monitor's picture
quality again.
y
Right-click the True Color Pro icon and
select Start Program to start the program.
y
noTe
When you run Screen Split, the Screen Split
y
y
icon [
] appears in the system tray at the
bottom right of the PC screen.
Right-click the Screen Split icon and select the
desired layout.
CaUTIon
Once you have completed the monitor calibra-
tion with the True Color Pro software, remove
the calibrator from the monitor and store it at
room temperature away from direct sunlight or
put it in the box.
y
- If the calibrator's measuring part is exposed
to direct sunlight for a long time, this may
cause damage to the calibrator.
- Do not store it in an environment with too
low/high temperature and high humidity.
If any third-party calibration application is
already installed on your PC, the image quality
may be affected by a conflict between the two
applications. For the best performance, it is
recommended to uninstall the other calibration
application.
y
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UseR seTTInGs
23
UseR seTTInGs
activating the Main Menu
Press the joystick button on the bottom of the monitor.
1
Move the joystick up/down (▲/▼) and left/right(◄/►) to set the options.
2
Press the joystick button once more to exit the main menu.
3
Joystick button
button
Menu status
Description
Main menu disabled
Enables the main menu.
Exits the main menu.
Main menu enabled
(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 menu features.
◄
►
▲
▼
Main menu disabled Adjusts the monitor volume level.
Main menu enabled Enters the PBP feature.
Main menu disabled Enables the main menu.
Main menu enabled Enters the Picture Mode feature.
Main menu disabled Enables the main menu.
Main menu enabled Turns off the monitor.
Main Menu features
Main Menu
Description
Configures the screen settings.
Menu
Picture Mode
나가기
Picture Mode
PbP
Optimizes the screen for picture mode.
Displays the screens of two input modes on one monitor.
Turns off the monitor.
Menu
PbP
Monitor off
exit
Exits the main menu.
Monitor off
long press: Monitor off
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UseR seTTInGs
24
User settings
Menu settings
To view the osD menu, press the joystick button at the bottom of the monitor and then enter the
Menu.
1
Configure the options by moving the joystick up/down/left/right.
2
To return to the upper menu or set other menu items, move the joystick to ◄ or pressing ( / OK) it.
3
If you want to exit the OSD menu, move the joystick to ◄ until you exit.
4
When you enter the menu, instructions on how to use the button will appear in the bottom right corner
of the screen.
y
easy control
function
PbP
screen
settings
Reset
Each option is described below.
Menu
Description
easy control brightness
Adjusts the color contrast and brightness of the screen.
Contrast
Volume
Adjusts the volume level.
noTe
You can adjust Mute/ Unmute by moving the joystick button to ▼ in the Volume
y
menu.
Input
Selects the input mode.
Ratio
Adjusts the aspect ratio of the screen.
function
PbP
Adjusts MaxxAudio, Picture Mode, Dual Color Space and SUPER ENERGY SAVING.
Displays the screens of two input modes on one monitor.
Adjusts the Sharpness, Black level and Response Time of the screen.
Adjusts Gamma, Color Temperature, Red, Green, Blue and Six Color.
Adjusts Language, Power LED, Automatic Standby, DisplayPort 1.2 and OSD Lock.
Restores the default settings.
PbP
screen
Picture
Color
settings
Reset
◄
exit
Exits the OSD menu.
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UseR seTTInGs
25
easy control
Ratio
brightness
100
70
>
>
>
>
>
easy control
To view the osD menu, press the joystick button at the
bottom of the monitor and then enter the Menu.
1
Contrast
Volume
Input
30
function
Go to easy control > Ratio by moving the joystick.
2
3
HDMI1
Configure the options following the instructions that appear
in the bottom right corner.
Ratio
Wide
PbP
To return to the upper menu or set other menu items, move
the joystick to ◄ or pressing ( / OK) it.
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
4
5
screen
settings
Reset
▲/▼: Move
◄: Back
/ ►: OK
Each option is described below.
Menu > easy control > Ratio
Description
Wide
original
1:1
Displays the video in widescreen, regardless of the video signal input.
Displays video according to the aspect ratio of the video signal input.
The aspect ratio is not adjusted from the original.
noTe
The display may look the same for Wide, Original, and 1:1 options at the recommended resolution.
y
y
-
-
Recommended resolution for mDP (Mini DisplayPort) and DP (DisplayPort) : 4096 x 2160
Recommended resolution for HDMI : 3840 x 2160
The ratio is disabled in the interlaced signal.
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UseR seTTInGs
26
function
function
Maxxaudio
>
>
>
>
easy control
To view the osD menu, press the joystick button at the
bottom of the monitor and then enter the Menu.
1
Picture Mode
off
Custom
low
Dual Color space
sUPeR eneRGY saVInG
function
Go to function by moving the joystick.
2
3
Configure the options following the instructions that appear in
the bottom right corner.
PbP
To return to the upper menu or set other menu items, move
the joystick to ◄ or pressing ( / OK) it.
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
4
5
screen
settings
Reset
▲/▼: Move
◄: Back
/ ►: OK
Each option is described below.
Menu > function
Description
Maxxaudio
features
(settings)
Maxxaudio
features
(settings)
on
MaxxAudio® by Waves, recipient of a Technical GRAMMY
Award® is a suite of studio-quality sound tools for a superior
listening experience.
off
Disables the MaxxAudio function.
Maxx sound
equalizer
The user can set the sound quality manually.
Maxxbase Adjusts bass.
MaxxTreble Adjusts treble.
MaxxDialog Adjusts audio.
Maxx3D
Adjusts the three-dimensional effect of the sound.
Returns the sound quality to the default settings.
Reset
Midnight Mode Lets you enjoy rich and full sound at a low volume.
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UseR seTTInGs
27
Menu > function
Description
Picture Mode
Custom
Allows the user to adjust each element. The color mode of the main menu
can be adjusted.
sRGb
A standard RGB color space for the monitor and printer.
adobeRGb
A much larger color space than sRGB. This option is suitable for printing
pictures.
DCM sim.
Optimizes the screen for viewing X-ray images. You can brighten the screen
in the OSD menu.
noTe
This product has been approved as an IT device and not as a
medical device. It is intended for office use only. (It may be used for
education and reference purposes but not for medical diagnosis.)
y
DCI-P3 sim.
Suitable for watching digital videos.
Reader
Optimizes the screen for viewing documents.You can brighten the screen in
the OSD menu.
Calibration 1
Calibration 2
off
Adjusts to the last calibrated screen.
Adjusts to the previously calibrated screen.
Disables the Dual Color Space function.
Sets the sRGB Picture Mode on the left of the screen.
Dual Color space
sRGb
adobeRGb
Sets the Adobe Picture Mode on the left of the screen.
Calibration 1
Calibration 2
High
Sets the Calibration 1 Picture Mode on the left of the screen.
Sets the Calibration 2 Picture Mode on the left of the screen.
Saves energy using the high-efficiency SUPER ENERGY SAVING feature.
sUPeR eneRGY
saVInG
low
Saves energy using the low-efficiency SUPER ENERGY SAVING feature.
Disables the SUPER ENERGY SAVING feature.
off
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UseR seTTInGs
28
PbP
PbP
PbP
off
>
>
>
easy control
To view the osD menu, press the joystick button at the
bottom of the monitor and then enter the Menu.
1
Input
audio
swap
sub full
Ratio
HDMI1
function
Go to PbP by movingthe joystick.
2
3
Configure the options following the instructions that appear in
the bottom right corner.
PbP
>
To return to the upper menu or set other menu items, move
the joystick to ◄ or pressing ( / OK) it.
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
4
5
screen
settings
PbP Preview
Reset
HDMI1
▲/▼: Move
◄: Back
/ ►: OK
Each option is described below.
Menu > PbP
Description
PbP
Displays the screens of two input modes on one monitor.
sub screen (Right)
PbP Connection
HDMI 1
HDMI 2
(Mini) DisplayPort
-
O
-
X
X
-
HDMI 1
HDMI 2
Main
screen
(left)
O
O
O
(Mini) DisplayPort
Input
Main
sub
Selects the video signal input of the main screen.
Selects the video signal input of the sub screen.
audio
swap
Changes the audio output in PBP mode.
Toggles between the main screen and sub screen in PBP mode.
Converts the sub screen in PBP mode to wide screen.
Adjusts the aspect ratio of the main screen or sub screen.
sub full
Ratio
Main
Wide
Displays the video to fit the PBP screen, regardless of
the video signal input.
original
Wide
Displays the video in the aspect ratio of the video signal
input on the PBP screen.
sub
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.
noTe
When the PBP mode is Off, Input, Audio, Swap, Sub Full, and Ratio menus become disabled. The
Main/Sub options for Ratio become disabled if there is no signal.
y
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UseR seTTInGs
29
screen
Picture
super Resolution+
sharpness
off
5
>
>
>
easy control
To view the osD menu, press the joystick button at the
bottom of the monitor and then enter the Menu.
1
black level
DfC
High
on
function
Go to screen > Picture by moving the joystick.
2
3
>
Configure the options following the instructions that appear in
the bottom right corner.
Uniformity
off
>
PbP
Response Time
Middle
>
To return to the upper menu or set other menu items, move
the joystick to ◄ or pressing ( / OK) it.
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
4
5
screen
settings
Reset
▲/▼: Move
◄: Back
/ ►: OK
Each option is described below.
Menu > screen > Picture
Description
With the picture improvement technology that minimizes the degradation of the picture
sUPeR ResolUTIon+
quality due to enlargement (e.g. blurred focus or unsharpened edges), the resolution is not
compromised, even when the images are enlarged, which guarantees a clear image.
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. Do-
ing so may result in unnecessarily high sharpness.
y
sharpness
Adjusts the sharpness of the screen.
black level
Sets the offset level (for HDMI only).
• offset: as a reference for a video signal, this is the darkest color the monitor can dis-
play.
High
The picture of the screen gets brighter.
The picture of the screen gets darker.
low
DfC
Adjusts the brightness automatically according to the screen.
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UseR seTTInGs
30
Menu > screen > Picture
Description
Uniformity
Adjusts uniformity of the image.
noTe
The Uniformity menu is activated only in sRGB and Adobe RGB modes. Enabling
Uniformity may reduce the overall brightness of the image.
y
Response Time
Sets a response time for displayed pictures based on the speed of the screen. For a nor-
mal environment, it is recommended that you use Middle. For a fast-moving picture, it is
recommended that you use high.
Setting to High may cause image sticking.
High
Middle
low
Sets the response time to High.
Sets the response time to Middle.
Sets the response time to Low.
off
Does not use the response time improvement feature.
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UseR seTTInGs
31
screen
Color
Gamma
2.2
>
>
>
>
>
>
>
easy control
To view the osD menu, press the joystick button at the
1
Color Temp.
ReD
6500
50
bottom of the monitor and then enter the Menu.
function
Go to screen > Color by moving the joystick.
2
3
Green
50
Configure the options following the instructions that appear in
the bottom right corner.
blue
50
PbP
six Colors
Reset
To return to the upper menu or set other menu items, move
the joystick to ◄ or pressing ( / OK) it.
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
4
5
screen
settings
Reset
▲/▼: Move
◄: Back
/ ►: OK
Each option is described below.
Menu > screen > Color
Description
Gamma
Gamma settings: When using the gamma 0, gamma 1 and gamma 2 monitor settings,
higher gamma settings mean a brighter image is displayed and vice versa.
Color Temp
Manual
Adjusts the color temperature in 500K increments.
(Note that 9300K is supported instead of 9500K.)
Custom
The user can adjust it to red, green, or blue by customization.
Red
You can customize the picture color using Red, Green and Blue colors.
Green
blue
six Colors
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 satu-
rated and brighter the colors become. The higher the value, the more saturated
and darker the colors become.
Reset
Returns color to the default settings.
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UseR seTTInGs
32
settings
settings
language
english
on
>
>
>
>
>
easy control
To view the osD menu, press the joystick button at the
bottom of the monitor and then enter the Menu.
1
Power leD
automatic standby
DisplayPort 1.2
osD lock
off
function
Go to settings by moving the joystick.
2
3
enable
off
Configure the options following the instructions that appear in
the bottom right corner.
PbP
To return to the upper menu or set other menu items, move
the joystick to ◄ or pressing ( / OK) it.
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
4
5
screen
settings
Reset
▲/▼: Move
◄: Back
/ ►: OK
Each option is described below.
Menu > settings
Description
Sets the menu screen to the desired language.
Turns the power LED on the front of the monitor on or off.
language
Power leD
on
The power LED turns on automatically.
The power LED turns off.
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. (OFF, 4 hours, 6 hours, and 8 hours)
DisplayPort 1.2
Enables or disables DisplayPort 1.2.
noTe
Be sure to configure this option according to the DisplayPort version supported by your
y
graphics card. Set this option to Disable if your graphics card does not support DisplayPort
1.2.
osD lock
Prevents incorrect key input.
on
Disables key input
Enables key input
off
noTe
All features are disabled except Brightness, Contrast, Volume, Input, OSD Lock in Settings
and the Exit button.
y
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UseR seTTInGs
33
Reset
Reset
Do you want to reset your settings?
easy control
To view the osD menu, press the joystick button at the
1
Reset
bottom of the monitor and then enter the Menu.
Cancel
function
Go to Reset by moving the joystick.
2
3
Configure the options following the instructions that appear in
the bottom right corner.
PbP
To return to the upper menu or set other menu items, move
the joystick to ◄ or pressing ( / OK) it.
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
4
5
screen
settings
Reset
▲/▼: Move
◄: Back
/ ►: OK
Each option is described below.
Menu > Reset
Description
Do you want to reset your settings?
Reset
Restores the default settings.
Cancel the reset.
Cancel
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TRoUblesHooTInG
34
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.
y
Is the power LED on?
Check the power cable connection and press the power button.
Check that the connected input is enabled (Menu - Input).
y
y
Is the power on and the power
LED displaying white?
Is the power LED blinking?
If the monitor is in power-saving mode, move the mouse, or press
any key on the keyboard, to switch the display on.
Check if the computer is turned on.
y
y
y
Is the oUT of RanGe mes-
sage being displayed?
This occurs when signals transferred from the PC (video card) are
out of the 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 be-
This is displayed when the signal cable between the PC and the
y
monitor is missing or disconnected. Check the cable and reconnect
it.
ing displayed?
The 'osD lock' message is being displayed.
Are some functions not avail-
able when you press the Menu
button?
The OSD is locked. Go to Menu > Settings and set osD lock to Off.
y
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.
y
y
screen display is unstable and shaky / Images displayed on the monitor 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.
y
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 Hz.
y
y
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TRoUblesHooTInG
35
noTe
Check if the video card's resolution or frequency is within the range allowed by the monitor and set it to
the recommended (optimal) resolution in Control Panel > Display > settings.
Not setting the video 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 reso-
lutions may not be available depending on the performance of the video card. If this is the case, contact
the manufacturer of the computer or video card for assistance.
y
y
y
Some video cards may not support 4096 x 2160 / 3840 x 2160 resolution. If the resolution cannot be
displayed, contact the manufacturer of your video card.
y
The display color is abnormal.
Does the display appear discol-
ored (16 colors)?
Set the color to 24 bit (true color) or higher. In Windows, go to Con-
trol Panel > Display > Settings > Color Quality.
y
Does the display color appear
unstable or monochrome?
Check if the signal cable is connected properly. Reconnect the cable
or reinsert the PC's video card.
y
y
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
(Mini) 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.
y
y
y
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PRoDUCT sPeCIfICaTIon
36
PRoDUCT sPeCIfICaTIon
LCD Screen
Type
78.7 cm TFT (Thin Film Transistor)
LCD (Liquid Crystal Display) Screen
Diagonal length of the screen: 78.7 cm
31" class (31.0" / 78.7 cm diagonal)
Pixel Pitch
HDMI
0.0567 mm x 0.1701mm
4096 x 2160 @ 24 Hz
Resolution
Max Resolution
3840 x 2160 @ 30 Hz
4096 x 2160 @ 60 Hz
4096 x 2160 @ 60 Hz
30 kHz to 90 kHz
56 kHz to 61 kHz
30 kHz to 135 kHz
56 kHz to 61 kHz
Recommended Resolution
Max Resolution
(Mini) DisplayPort
HDMI
Recommended Resolution
Horizontal Frequency
Vertical Frequency
Horizontal Frequency
Vertical Frequency
Separate Sync.
Video Signal
(Mini) DisplayPort
Synchronization
Input Connector
Power Sources
H/P OUT, HDMI IN 1, HDMI IN 2, mDP (Mini DisplayPort) IN, DP (DisplayPort) IN,
USB UP, USB IN 1, 2, 3
Vltage
AC 100-240 V~ 50 / 60 Hz
Power Consumption Operating Mode: 49 W (Typical, USB excluded, Audio Output
(Typical)
20%)
85 W (Max, USB included, Audio Output 50%)
Power Saving Mode ≤ 1.2 W
Off Mode
Power Button
Switch
≤ 0.5 W
0 W
Stand Angle
Forward/Backward: -5° to 15° (Head)
Environmental
Conditions
Operating Conditions Temperature: 10°C to 35°C
Humidity: 10% to 80%
Storing Conditions
Temperature: -20°C to 60°C
Humidity: 5% to 90%
Audio Output
Dimensions
5 W + 5 W
Monitor Size (Width x Height x Depth)
736.7 mm x 483.5 mm x 241.4 mm
Weight (Without With Stand
9.6 kg
7.7 kg
Packaging)
Without Stand
Specifications are subject to change without notice.
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PRoDUCT sPeCIfICaTIon
37
factory support Mode
(Preset Mode, HDMI/(Mini) DisplayPort PC)
Horizontal frequency Vertical frequency
Preset Mode
Polarity (H/V) Remarks
(kHz)
(Hz)
640 x 480
31.469
37.879
48.363
45
59.94
60.317
60
-/-
800 x 600
+/+
-/-
1024 x 768
1280 x 720
1280 x 1024
1600 x 900
1920 x 1080
60
+/+
+/+
+/+
+/-
63.981
60
60.02
60
67.5
60
Recommended resolution
2048 x 2160
133.32
60
+/-
for HDMI/(Mini) DisplayPort
PBP
3840 x 2160
3840 x 2160
4096 x 2160
4096 x 2160
133.32
67.5
60
30
60
24
+/-
+/-
+/-
+/-
HDMI is not supported.
(Mini) DIsplayPort is not
supported.
133.32
54
HDMI is not supported.
(Mini) DIsplayPort is not
supported.
HDMI Timing (Video)
Horizontal frequency Vertical frequency
Preset Mode
Remarks
(kHz)
31.5
45
(Hz)
480P
720P
1080P
60
60
67.5
60
Power leD
Mode
leD Color
On Mode
White
Power Saving Mode
Off Mode
Flashing White
Off
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PRoPeR PosTURe
38
PRoPeR PosTURe
Proper Posture for Using the Monitor
Adjust the screen so that you can comfortably look at it at a slight downward angle from your natural eye
level.
Take a break for approximately 10 minutes every hour to reduce any fatigue caused by prolonged
usage.
y
The stand of the touch monitor allows the product to be used in the optimum position.
Adjust the stand angle from -5° to 15° to obtain the best view of the screen.
y
y
You should be looking
slightly down at the
screen.
Stand Angle
-5° to 15°
Adjust the position of
the screen to mini-
mize reflections.
Place your hands gently
on the keyboard,
keeping your arms bent at
the elbows
and extended horizontally
in front of you.
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Declaration of Conformity
Trade Name: LG
Model: 31MU97
Responsible Party: LG Electronics Inc.
Address: 1000 Sylvan Ave.
Englewood Cliffs NJ 07632
U.S.A
TEL: 201-266-2534
This device meets the EMC requirements for
home appliances (Class B) and is intended
for home usage. This device can be used in
all regions. Read the owner's manual (CD)
carefully and keep it at hand. Please note that
the label attached to the product provides
information for technical support.
ENERGY STAR is a set of power-saving
guidelines issued by the U.S.Environmental
Protection Agency (EPA).
As an ENERGY STAR Partner LGE
U. S. A., Inc. has determined that
this product meets the ENERGY
STAR guidelines for energy
efficiency.
Model
Refer to ENERGY STAR.gov for more
Serial No.
information on the ENERGY STAR program.
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