OWNER'S MANUAL
LED MONITOR
Please read the safety information carefully before using the product.
LED Monitor Model List
24GM77
www.lg.com
2
Table of contents
ENGLISH
ENG
TABLE OF CONTENTS
3
LICENSE
4ASSEMBLING AND
PREPARING
4
Product Composition
5
Component and Button Description
6
- How to Use the Joystick Button
7
Moving and Lifting the Monitor
8
Installing the Monitor
8
- Assembling the Stand Base
9
- Detaching the Stand Base
9
- Installing on to a Table
10
- Adjusting the Stand Height
11
- Adjusting the Angle
11
- Tidying Cables
12
- Pivot Feature
13
- Using the Kensington Lock
13
- Detaching the Stand Body
14
- Installing the Wall Mount Plate
14
- Installing on the Wall
16 USING THE MONITOR
16
Connecting to a PC
16
- HDMI Connection
17
- DisplayPort Connection
17
- D-SUB Connection
18
- DVI Connection
18
Connecting AV Devices
18
- HDMI Connection
19
Connecting Peripherals
19
- USB Cable Connection - PC
20
- Headphone Port Connection
21 USER SETTINGS
21
Activating the Main Menu
21
- Main Menu Features
22
User Settings
22
- Menu Settings
23
- Ratio
24
- Function
27
- Picture
29
- Color
30
- Display
31
- Settings
32
- Auto Configuration
33
- Reset
34 TROUBLESHOOTING
36 PRODUCT SPECIFICATION
37
Factory Support Mode
(Preset Mode, DisplayPort/D-SUB/DVI-D/
HDMI PC)
37
HDMI Timing (Video)
37
Power LED
38 PROPER POSTURE
38
Proper Posture for Using the Monitor
WARNING: This product contains chemicals known to the State of California to cause cancer and birth
defects or other reproductive harm. Wash hands after handling.
LICENSE
3
Each model has different licenses. Visit www.lg.com for more information on the 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, Display Port Compliance Logo and Display Port
Compliance Logo for dual-mode source are all registered trademarks of the
Video Electronics Standards Association.
ENG
ENGLISH
LICENSE
4
ASSEMBLING AND PREPARING
ENGLISH
ENG
ASSEMBLING AND PREPARING
Product Composition
Please check whether all the components are included in the box before using the product. If there are
missing components, contact the retail store where you purchased the product. Note that the product and
components may look different from those shown here.
CD (Owner's Manual)
/ Cards
Power Cord
Cable Holder /
Screw
Stand Base
or
DVI-D Dual Cable
D-SUB Cable
A-B Type USB 3.0 Cable
CAUTION
yy Always use genuine components to ensure safety and product performance.
yy The product warranty will not cover damage or injury caused by the use of unauthorized components.
NOTE
yy The components may look different from those illustrated here.
yy 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.
y
y The power cord provided may differ depending upon the region.
ASSEMBLING AND PREPARING
5
Component and Button Description
5V
USB 2
USB 1
0.9 A
ENG
ENGLISH
AC-IN
Joystick Button
BLACK GAME
ST.
MODE
DAS
MODE
Power LED
yy On Power on
yy Off Power off
Front Side Buttons
Brightness Sensor
DP IN
D-SUB IN
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
Input Connector
NOTE
yy The Brightness Sensor senses the amount of exterior light so that the processor can make necessary
adjustments to the brightness level to compensate.
yy The joystick button is located at the bottom of the monitor.
6
ASSEMBLING AND PREPARING
How to Use the Joystick Button
ENGLISH
ENG
You can easily control the functions of the monitor by pressing the joystick button or moving it left/right 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 with your finger to turn off
the monitor.
Volume
Control
You can control the volume by moving the joystick button left/right.
ASSEMBLING AND PREPARING
Moving and Lifting the Monitor
CAUTION
yy Avoid touching the monitor screen as much
as possible. Do not apply pressure.
-T
his may result in damage to the screen or
some of the pixels used to create images.
yy It is advisable to place the monitor in the
original box or packing material before
attempting to move it.
yy Before moving or lifting the monitor,
disconnect the power cord and all cables.
yy Hold the top and bottom of the monitor frame
firmly. Do not hold the panel itself.
yy 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.
yy When holding the monitor, the screen should
face away from you to prevent it from being
scratched.
yy When transporting the monitor, do not expose the monitor to jolts or excessive vibration.
yy When moving the monitor, keep it upright and
never turn the monitor on its side or tilt it sideways.
ENG
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.
7
8
ASSEMBLING AND PREPARING
Installing the Monitor
ENGLISH
ENG
Assembling the Stand Base
3 Align the hole on the Stand Base with the
Stand Body and push it all the way up.Turn
the screws on the Stand Base to the right.
1 Place the screen face down.
2 Rotate the Stand Body 90˚ counter clockwise.
Head
Stand Base
Stand Body
CAUTION
yy To protect the screen from scratches, cover
the surface with a soft cloth.
yy To avoid scratching the head, make sure that
when rotating the Stand Body, the stand
body does not make contact with the head.
CAUTION
yy 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.
ASSEMBLING AND PREPARING
Installing on to a Table
1 Place the screen face down.
1 Lift the monitor and place it on the table in an
CAUTION
yy To protect the screen from scratches, cover
the surface with a soft cloth.
upright position.
Place at least 10 cm (4 inches) away from the
wall to ensure sufficient ventilation.
10 cm (4 inches)
2 BodyTurn the screws on the Stand Base to the
10 cm
left to detach the Stand Base from the Stand
Body.
10 cm
10 cm
2 Connect the Power Cord to a wall outlet.
CAUTION
yy The components in the illustrations may differ
from the actual product.
yy Do not carry the monitor upside down, as this
may cause it to fall off its stand and result in
damage or injury.
yy To avoid damaging the screen when lifting
or moving the monitor, only hold the stand
or the plastic cover. This avoids putting
unnecessary pressure on the screen.
3 Press the
(Power) button on the bottom of
the monitor to turn it on.
CAUTION
yy To avoid the risk of electric shock, disconnect
the Power Cord before moving or installing
the monitor.
ENG
ENGLISH
Detaching the Stand Base
9
10
ASSEMBLING AND PREPARING
Adjusting the Stand Height
ENGLISH
ENG
1 Place the monitor mounted on the stand base
in an upright position.
2 Push the Head downward and pull out the
Locking Pin.
CAUTION
yy Once the pin is removed, it is not necessary
to re-insert it to adjust the height.
yy Problems with the height or angle adjustment
of the product caused by the attachment of
protective glass in Internet cafes specializing
in gaming will not be covered by the
warranty.
WARNING
yy To avoid injury, do not put
your fingers or hand between
the head and the base when
adjusting the screen's height.
Head
Locking pin
3 Handle the monitor with both hands for safety.
4 The height can be adjusted up to 100.0 mm
(approx. 4 inches).
100.0 mm (approx. 4 inches)
ASSEMBLING AND PREPARING
Adjusting the Angle
CAUTION
ed on the stand base.
2 Adjust the angle of the screen. The angle of
the screen can be adjusted forwards or backwards from -5° to 20° for a comfortable viewing
experience.
yy Problems with the height or angle adjustment
of the product caused by the attachment of
protective glass in Internet cafes specializing
in gaming will not be covered by the
warranty.
-5
Tidying Cables
1 Use the screw provided to attach the cable
holder to the stand body as illustrated.
Rear Side
Front Side
WARNING
yy To avoid injury, do not put your fingers or
hand between the head and the base when
adjusting the screen's angle or height.
2 Gather and bind the cables with the supplied
20
-5
cable
holder.
20
yy Be careful not to touch or press the screen
area when adjusting the angle of the monitor.
-5
ENG
ENGLISH
1 Place the monitor in an upright position, mount-
20
11
12
ASSEMBLING AND PREPARING
Pivot Feature
3 Rotate the monitor clockwise as shown in the
ENGLISH
ENG
The pivot feature allows the monitor to rotate 90°
clockwise.
figure.
Head
Stand
WARNING
4 Complete the installation by rotating the
monitor 90° as shown below.
yy 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.
1 Raise the monitor to the maximum height.
NOTE
2 Adjust the angle of the monitor in the direction
of the arrow as shown in the figure.
yy Auto Pivot feature of the display is not
supported.
yy The screen can be rotated easily using the
screen pivot shortcut key provided with your
Windows operating system. Note that some
Windows versions may use different settings
for the screen pivot key or may not support
the pivot key at all.
yy Supported Windows versions: Windows 7
and Windows 8
yy Windows screen pivot shortcut keys
-- 0°: Ctrl + Alt + Up arrow key (↑)
-- 90°: Ctrl + Alt + Left arrow key (←)
-- 180°: Ctrl + Alt + Down arrow key (↓)
-- 270°: Ctrl + Alt + Right arrow key (→)
ASSEMBLING AND PREPARING
WARNING
Detaching the Stand Body
1 Place the monitor's screen face down. To
protect the screen from scratches, cover the
surface with a soft cloth.
2 Using a screwdriver, remove the four screws
and detach the stand from the monitor.
Using the Kensington Lock
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 user manual or visit
the website at http://www.kensington.com.
Connect the Kensington security system cable
between the Monitor and a table.
NOTE
yy The Kensington security system is optional.
You can obtain additional accessories from
most electronics stores.
ENG
ENGLISH
yy Take care when rotating the monitor if the
cable is connected.
yy To avoid injury when rotating the display, do
not place your fingers between the display
and the stand base.
13
14
ASSEMBLING AND PREPARING
ENGLISH
ENG
Installing the Wall Mount Plate
Installing on the Wall
This monitor meets the specifications for the wall
mount plate or other compatible devices.
Install the monitor at least 10 cm (4 inches)
away from the wall and leave about 10 cm (4
inches) 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.
1 Place the screen face down. To protect the
screen from scratches, cover the surface with a
soft cloth.
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.
10 cm (4 inches)
10 cm
Wall mount plate
10 cm
10 cm
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
NOTE
yy The wall mount plate is sold separately.
yy For more information on installation, refer to
the wall mount plate's installation guide.
yy Be careful not to apply too much force while
mounting the wall mount plate as it may
cause damage to the screen
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 non-standard screws.
ASSEMBLING AND PREPARING
100 x 100
M4 x 10 mm
4
RW120
yy Wall Mount (A x B)
A
B
NOTE
yy Use the screws specified by VESA standards.
yy The wall mount kit includes the installation
guide and all necessary parts.
yy The wall mounting bracket is optional. You
can obtain optional accessories from your
local dealer.
yy The length of the screw may differ for each
wall mounting bracket. Be sure to use the
proper length.
yy For more information, please refer to the
user manual for the wall mounting bracket.
CAUTION
yy Unplug the power cord before moving or
installing the monitor to avoid electric shock.
yy 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.
yy 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.
yy 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.
yy To prevent injury, this apparatus must be
securely attached to the wall in accordance
with the instrallation instructions. (This pertains only to Australia and New Zealand.)
yy When measured from the back of the monitor, the length of each installed screw must
be 8 mm (5/16 inches) or less.
Wall Mount Plate
Back of the Monitor
Wall Mount Plate
Back of the Monitor
Screw
Dimensions
: M4 x L10
Max 8 mm
ENG
ENGLISH
Wall Mount (A x B)
Stand Screw
Required Screws
Wall Mount Plate
(Optional)
15
DP IN
16
D-SUB IN
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
USING THE MONITOR
ENGLISH
ENG
USING THE MONITOR
Connecting to a PC
CAUTION
yy Do not press on the screen for a prolonged
AUDIO OUT
period of time. This may cause image distortion.
yy Do not display a still image on the screen for
a prolonged period of time. This may cause
image retention. Use a screensaver if possible.
NOTE
yy When connecting the power cord to the outlet, use a grounded (3-hole) multi-socket or a
grounded power outlet.
D-SUB IN
yy The monitor may flicker when turned on in an
area of low temperature. This is normal.
yy Sometimes red, green, or blue spots may appear on the screen. This is normal.
yy This monitor supports the *Plug and Play
feature.
DVI-I(D) OUT
PC
*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. Connect your PC to the monitor
using the HDMI cable as shown in the illustration
below.
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
(Sold Separately)
DP IN
D-SUB IN
DVI-D IN
CAUTION
HDMI IN 1 HDMI IN 2
USB UP
yy Connecting your PC to the monitor using the
HDMI cable may cause device compatibility
issues.
yy Using a DVI to HDMI / DP(DisplayPort) to
HDMI cable may cause compatibility issues.
0.9 A
USB 2
USB 1
5V
17
USING THE MONITOR
D-SUB Connection
Transmits digital video and audio signals from your
PC to the monitor. Connect the monitor to your
PC using the display port cable as shown in the
illustration below:
Transmits the analog video signal from your PC
to the monitor. Connect the monitor to the PC
DP OUT15-pin D-Sub signal cable as
using the provided
illustrated below.
HDMI IN 1 HDMI
DP IN IN 2
USB UPIN
D-SUB
DVI-D IN
HDMI IN 1 HDMI IN 2 USB UP
PC
DVI-D IN
5V
0.9 A
(Sold Separately)
DP OUT
NOTE
DP IN
D-SUB IN
AUDIO OUT
yy There may be no video or audio output
depending on the DP (DisplayPort) version of
the PC.
yy When using a Mini DP to DP (Mini
DisplayPort to DisplayPort) cable, a cable
with DisplayPort 1.1a specifications or above
is recommended.
HDMI IN
USB 2
DVI-D IN
USB 1
DP IN
ENG
ENGLISH
DisplayPort Connection
D-SUB OUT
(Sold Separately)
CAUTION
yy Connect the input signal cable
and turn inDP
theINdirection
of the
D-SUB IN
arrow. To prevent disconnection
secure the cable firmly, do not
over tighten.
D-SUB OUT
AUDIO OUT
PC
DVI-D IN
NOTE
yy Apple® Adapter
If you are using an Apple® computer, an
Apple® adapter is required. The adapter can
be purchased at an Apple® store.
AUDIO OUT
DP IN
D-SUB IN
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
DVI-I(D) OUT
PC
HDMI IN
D-SUB IN
18
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
USING THE MONITOR
ENGLISH
ENG
DVI Connection
Connecting AV Devices
Transmits digital video signals to the monitor.
Connect the monitor using the DVI cable as
illustrated below.
HDMI Connection
DP IN
D-SUB IN
DVI-D IN
DP IN
HDMI IN 1
D-SUB IN
HDMI transmits digital video and audio signals
from your AV device to the monitor. Connect your
HDMI IN AV
2 device
USB UPto the monitor using the HDMI cable as
shown in the illustration below.
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
(Sold Separately)
AUDIO OUT
DVI-I(D) OUT
PC
(Sold Separately)
NOTE
yy Using a DVI to HDMI / DP(DisplayPort) to
HDMI cable may cause compatibility issues.
CAUTION
D-SUB IN
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
yy Connect the input signal cable
and turn in the direction of the
arrow. To prevent disconnection
secure the cable firmly, do not
over tighten.
NOTE
yy Using a DVI to HDMI cable may cause
compatibility issues.
yy If you connect a DVI signal cable, use the
DVI-D dual cable.
DP IN
D-SUB IN
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
Connecting Peripherals
To use USB 3.0, connect the A-B type USB 3.0
cable of the product to the PC.
Peripheral devices connected to the USB 1, 2 port
DP IN
can be controlled from the PC.
USB Cable Connection - PC
0.9 A
D-SUB IN
DVI-D IN
5V
yy Make sure to install the most recent Windows
OS service pack before using the product.
yy Peripheral devices are sold separately.
yy A keyboard, mouse, or USB device can be
connected to the USB port.
USB 1
NOTE
D-SUB
USB 2
The USB port on the product functions as a USB
hub.
DP IN
CAUTION
19
ENG
ENGLISH
D-SUB IN
USING THE MONITOR
(Sold Separately)
HDMI IN 1 HDMI IN 2
Cautions When Using a USB Device
yy A USB device with an automatic recognition
program installed or that uses its own driver
may not be recognized.
yy Some USB devices may not be supported or
may not work properly.
yy It is recommended to use a USB hub or hard
disk drive with an external power supply. (If
the power supply is not adequate, the USB
device may not be recognized properly.)
USB UP
DP IN
DVI-D IN
HDMI IN 1
DVI-D IN
HDMI IN 1
DP OUT
DVI-D IN
HDMI IN 1 HDMI IN 2
USB UP
DP IN
5V
D-SUB IN
USB 2
USB UP
USB 1
HDMI IN 1 HDMI IN 2
0.9 A
DVI-D IN
D-SUB OUT
AUDIO OUT
PC
20
USING THE MONITOR
Headphone Port Connection
5V
USB 2
0.9 A
Use the headphone port to connect a peripheral
device to the monitor. Connect as illustrated.
USB 1
ENGLISH
ENG
USB UP
(Sold Separately)
NOTE
USB UP
yy Peripheral devices are sold separately.
yy It is difficult to connect an angle plug
earphone or a peripheral device, so please
use a straight type plug.
Angle Type
Straight Type
yy Depending on the audio settings of the PC
and external device, headphone and speaker
functions may be limited.
USB UP
USER SETTINGS
21
ENG
ENGLISH
USER SETTINGS
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.

BLACK
ST.
GAME
MODE
DAS
MODE
Joystick Button
Button
Menu Status
Description
Main menu disabled
Enables the main menu.
Main menu enabled
Exits the main menu.
(Press and hold the button to turn off the monitor: You can turn
off the monitor using this method at any time, including when the
OSD (On Screen Display) 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 input 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 the monitor off.
Main Menu Features

Main Menu
Picture Mode
Menu
Exit
Input
Monitor off

Long Press: Monitor Off.
Description
Menu
Configures the screen settings.
Picture Mode
Optimizes the screen for picture mode.
Input
Sets input mode.
Monitor off
Turns off the monitor.
Exit
Exits the main menu.
22
USER SETTINGS
User Settings
ENGLISH
ENG
Menu Settings
1 To view the OSD menu, press the joystick button on the bottom of the monitor and then enter the
Menu.
2 Configure the options by moving the joystick up/down/left/right.
3 If you want to configure an upper menu or another option, move the joystick ◄ or press it ( / OK).
4 If you want to exit the OSD menu, move the joystick ◄ until you exit.
yy When you enter the menu, instructions on how to use the button will appear in the bottom right corner
of the screen.

Easy control
Function
Screen
Settings

Auto
Configuration
Reset
Each option is described below.
Menu
Easy control Brightness
Description
Adjusts the screen brightness.
NOTE
yyYou can turn the auto brightness adjustment on/off by moving the joystick button ▼ in the Brightness menu.
Contrast
Adjusts the screen contrast.
Volume
Adjusts the volume level.
NOTE
yyYou can turn mute on/off by moving the joystick button ▼ in the Volume menu.
Input
Selects the input mode.
Ratio
Adjusts the aspect ratio of the screen.
Function
Screen
Adjusts Picture Mode, Game Mode, DAS Mode, Motion 240, and SUPER ENERGY
SAVING.
Picture
Adjusts SUPER RESOLUTION+, Sharpness, Black Level, Black Stabilizer, and Response Time of the screen.
Color
Adjusts the Gamma, Color Temp, and Color.
Display
Adjusts Position, Width, and Phase of the screen.
(Activated only when using a D-Sub Analog input.)
Settings
Adjusts Language, Power LED, Automatic Standby, and OSD Lock.
Auto Configuration
Adjusts the Position, Width, and Phase of the screen automatically.
(Activated only when using a D-Sub Analog input.)
Reset
Restores the default settings.
◄
Exit
Exits the OSD menu.
USER SETTINGS
Ratio
Easy control
To view the OSD menu, press the joystick button on the
bottom of the monitor and then enter the Menu.
Easy control
2 Go to Easy control > Ratio by moving the joystick.
3 Configure the options following the instructions that appear
4
5
in the bottom right corner.
If you want to configure an upper menu, or another option,
move the joystick to ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick to ◄
until you exit.
Brightness
60
>
Contrast
70
>
Volume
30
>
Input
DVI-D
>
Ratio
Wide
>
Function
Screen
Settings
Auto
Configuration
Reset
▲ / ▼ : Move
/ ► : OK
◄ : Back
Each option is described below.
Menu > Easy control > Ratio
Description
Wide
Displays the video in wide screen, regardless of the video signal input.
Original
Displays the video according to the aspect ratio of the video signal input.
1:1
The aspect ratio is not adjusted from the original.
NOTE
yyThis function is not available when the DAS mode is turned on. To use the 1:1
mode, you should turn the DAS mode off.
NOTE
yy The display may look the same for Wide, Original, and 1:1 options at the recommended resolution
(1920 x 1080).
yy Ratio is disabled with an interlaced signal.
ENG
ENGLISH
1
23
24
USER SETTINGS
Function
ENGLISH
ENG
1
Function
Picture Mode
To view the OSD menu, press the joystick button on the
bottom of the monitor and then enter the Menu.
2 Go to Function by moving the joystick.
3 Configure the options following the instructions that appear
4
5
in the bottom right corner.
If you want to configure an upper menu, or another option,
move the joystick ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick ◄ until
you exit.
Easy control
Custom
>
FPS 1
>
On
>
Off
>
Low
>
Game Mode
DAS Mode
Function
Motion 240
Screen
SUPER ENERGY SAVING
Settings
Auto
Configuration
Reset
▲ / ▼: Move
/ ► : OK
◄ : Back
Each option is described below.
Menu > Function
Picture Mode
(Move the joystick
to ▲ in the main
menu to enter
Picture Mode
directly.)
Game Mode
Description
Reader 1
Optimizes the screen for browsing newspapers. You can brighten the screen in the
OSD menu.
Reader 2
Optimizes the screen for reading comics. You can brighten the screen in the OSD
menu.
Photo
Optimizes the screen for photos.
Cinema
Optimizes the screen for video.
Custom
You can customize Screen functions.
Gamer
1, 2, 3
Brightness, Contrast, Sharpness, Gamma, Color Temp, Black Stabilizer, Response
Time, DAS Mode, and Motion 240 functions can be customized as Gamer 1, 2, or 3.
FPS 1
Game Mode functions are optimized for FPS games.
FPS 2
The Black Stabilizer value is greater than that of FPS 1. It is suitable for very dark FPS
games.
RTS
Game Mode functions are optimized for RTS games.

NOTE
yyUse the GAME MODE button on the front of the monitor to quickly select and switch between the Gamer 1/2/3, FPS 1/2, RTS, and Off options.
* FPS: First-Person Shooter
* RTS: Real-Time Strategy
* DAS: Dynamic Action Sync
USER SETTINGS
Menu > Function
Description
On
You can enjoy faster game ensuring your commands appear onscreen without delay.
(The screen flickers when turning DAS Mode on/off.)
Off
Turns DAS Mode off.

NOTE
yyUse the DAS MODE button on the front of the monitor to quickly select and switch between
the options.
Motion 240
On
This mode minimizes motion blur in fast-moving videos. This function only works for
frame rates (vertical frequency) of 100 Hz and 120 Hz. To take full advantage of this
function, select 1920 × 1080 @ 120 Hz for DisplayPort (DP) or DVI inputs before
enabling Motion 240.
This function is available for 100 Hz and 120 Hz only.
Off

Turns Motion 240 Mode off.
NOTE
yyTo reduce motion blur, brightness is reduced with backlight control.
yyMotion 240 and DAS Mode cannot be used simultaneously. When Motion 240 is enabled,
DAS Mode is disabled automatically.
SUPER ENERGY
SAVING
High
Saves energy using the high-efficiency Super Energy Saving feature.
Low
Saves energy using the low-efficiency Super Energy Saving feature.
Off
Disables the SUPER ENERGY SAVING function.
NOTE
yyIf you set the Super Energy Saving function to high or low in the picture mode of Reader 1,
Reader 2, Photo, or Cinema, the picture mode will be changed to Custom.
ENG
ENGLISH
DAS Mode
25
26
USER SETTINGS
Using Hot Keys
ENGLISH
ENG
Use the button on the front of the monitor to quickly select and switch between available options.
Description
Menu
You can enter the OSD menu by pressing the GAME MODE button on the front of the monitor.
You can change the Game Mode settings by using the left and right(< >) buttons.
Press the GAME MODE button again to save your settings and exit the OSD menu.
Black Stabilizer
Game Mode
DAS Mode
You can choose the optimal screen setting among the gaming presets.
FPS
FPS
FPS
FPS
FPS
FPS
FPS
FPS
FPS
FPS
FPS
FPS
FPS
FPS
RTS
RTS
RTS
RTS
RTS
RTS
RTS
OFF
OFF
OFF
OFF
OFF
OFF
OFF
GAME MODE
1 1 1 1 1 1 12 2 2 2 2 2 23 3 3 3 3 3 3 1 1 1 1 1 1 12 2 2 2 2 2 2
Gamer 1
Gamer 2
Gamer 3
FPS 1
FPS 2
RTS
Off
Gamer
1, 2, 3
Brightness, Contrast, Sharpness, Gamma, Color Temp, Black Stabilizer, Response Time, DAS Mode, and Motion 240 functions can be customized as
Gamer 1, 2, or 3.
FPS 1
Game Mode functions are optimized for FPS games.
FPS 2
The Black Stabilizer value is greater than that of FPS 1. It is suitable for very
dark FPS games.
RTS
Game Mode functions are optimized for RTS games.
You can enter the OSD menu by pressing the DAS MODE button on the front of the monitor.
You can change the DAS MODE settings by using the left and right(< >) buttons.
Press the DAS MODE button again to save your settings and exit the OSD menu.
Black Stabilizer
Game Mode
DAS Mode
You can enjoy faster game ensuring your commands appear onscreen without delay.
DAS MODE
On
Off
On
You can enjoy faster game ensuring your commands appear onscreen without
delay. (The screen flickers when turning DAS Mode on/off.)
Off
Turns DAS Mode off.
NOTE
yy The buttons on the front of the monitor are disabled in the Energy Saving mode.
USER SETTINGS
Picture
Screen
To view the OSD menu, press the joystick button on the
bottom of the monitor and then enter the Menu.
2 Go to Screen > Picture by moving the joystick.
3 Configure the options following the instructions that appear in
the bottom right corner.
Easy control
Picture
>
Color
>
Display
>
Function
Screen
4 If you want to configure an upper menu, or another option,
5
move the joystick ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick ◄ until
you exit.
Settings
Auto
Configuration
Reset
▲ / ▼ : Move
/ ► : OK
◄ : Back
Each option is described below.
Menu > Screen > Picture
SUPER RESOLUTION+
Description
With the picture improvement technology that minimizes the degradation of the picture
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
yyBecause 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.
Sharpness
Adjusts the sharpness of the screen.
Black Level
Sets the offset level (for HDMI only).
yy Offset: as a reference for the video signal, this is the darkest color the monitor can
display.
Black Stabilizer
High
The screen picture gets brighter.
Low
The screen picture gets darker.
Black Stabilizer
: You can control the black contrast to have better visibility in dark scenes.
Increasing the Black Stabilizer value brightens the low gray level area on the screen. (You
can easily distinguish objects on dark game screens.)
Reducing the Black Stabilizer value darkens the low gray level area and increases the
dynamic contrast on the screen.

NOTE
yyUse the BLACK ST. button on the front of the monitor to quickly switch between
the Black Stabilizer options.
ENG
ENGLISH
1
27
28
USER SETTINGS
Menu > Screen > Picture
ENGLISH
ENG
Response Time
Description
Sets a response time for displayed pictures based on the speed of the screen. For a normal
environment, it is recommended that you use Middle. For a fast-moving picture, it is recommended that you use High.
Setting the response time to High may cause image sticking.
High
Sets the response time to High.
Middle
Sets the response time to Middle.
Low
Sets the response time to Low.
Off
Does not use the response time improvement feature.
Using Hot Keys
Use the button on the front of the monitor to quickly switch between the BLACK ST. options.
Description
Menu
You can enter the OSD menu by pressing the BLACK ST. button on the front of the monitor.
You can change the Black Stabilizer settings by using the left and right(< >) buttons.
Press the BLACK ST. button again to save your settings and exit the OSD menu.
-Increasing the Black Stabilizer value brightens the low gray level area on the screen.
(You can easily distinguish objects on dark game screens.)
- Reducing the Black Stabilizer value darkens the low gray level area and increases the dynamic contrast on the screen.
BLACK ST.
Black Stabilizer
Game Mode
DAS Mode
You can control the black contrast to have better visibility in dark scenes.
◄
NOTE
yy The buttons on the front of the monitor are disabled in the Energy Saving mode.
►
50
USER SETTINGS
Color
Screen
To view the OSD menu, press the joystick button on the
bottom of the monitor and then enter the Menu.
Easy control
2 Go to Screen > Color by moving the joystick.
3 Configure the options following the instructions that appear in
Picture
>
Color
>
Display
>
Function
Screen
the bottom right corner.
4 If you want to configure an upper menu, or another option,
5
move the joystick ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick ◄ until
you exit.
Settings
Auto
Configuration
Reset
▲ / ▼ : Move
/ ► : OK
◄ : Back
Each option is described below.
Description
Menu > Screen > Color
Gamma
Custom 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
Warm
Sets the screen color to a reddish tone.
Medium
Sets the screen color between the reddish and bluish tone.
Cool
Sets the screen color to a bluish tone.
Custom
Selects the factory default picture color.
Red
You can customize the picture color using Red, Green, and Blue colors.
Green
Blue
Six Color
Meets the user's requirements for color 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.
Reset
Returns the colors to the default settings.
ENG
ENGLISH
1
29
30
USER SETTINGS
Display
ENGLISH
ENG
1
Screen
To view the OSD menu, press the joystick button on the
bottom of the monitor and then enter the Menu.
Go to Screen > Display by moving the joystick.
Easy control
2
3 Configure the options following the instructions that appear in
Picture
>
Color
>
Display
>
Function
the bottom right corner.
Screen
4 If you want to configure an upper menu, or another option,
5
move the joystick ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick ◄ until
you exit.
Settings
Auto
Configuration
Reset
▲ / ▼ : Move
/ ► : OK
◄ : Back
Each option is described below.
Menu > Screen > Display
Description
Horizontal
Used to adjust the horizontal position of the screen.
Vertical
Used to adjust the vertical position of the screen.
Clock
To obtain the correct width of the input signal by adjusting the frequency. Used to minimize
the vertical bars that appear because of an incorrect width.
Phase
Used to optimize screen performance by adjusting the phase.
NOTE
This function is activated only when using D-Sub analog input.
yy
(When using analog signals, this function is required because the position and focus of the video
varies slightly according to graphic cards, cables, resolution settings, etc. This function is not required when using digital signals.)
Use the Menu > Auto Configuration ( ) function to automatically obtain the optimal position and
yy
focus.
31
USER SETTINGS
Settings
To view the OSD menu, press the joystick button on the
bottom of the monitor and then enter the Menu.
2 Go to Settings by moving the joystick.
3 Configure the options following the instructions that appear in
4
5
the bottom right corner.
If you want to configure an upper menu, or another option,
move the joystick ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick ◄ until
you exit.
Easy control
English
>
Power LED
Off
>
Automatic Standby
Off
>
OSD Lock
Off
>
Function
Screen
Settings
Auto
Configuration
Reset
▲ / ▼ : Move
/ ► : OK
◄ : Back
Each option is described below.
Menu > Settings
Description
Language
Sets the menu screen to the desired language.
Power LED
Turns the Power LED on the front of the monitor on or off.
On
The power LED turns on automatically.
Off
The power LED turns off.
Automatic
Standby
Turns the monitor off automatically when there is no movement on the screen for a set period of
time.
You can set timer for the auto-off function. (Off, 4H, 6H, and 8H)
OSD Lock
Prevents incorrect key input.
On
Disables the key input feature.
Off
Enables the key input feature.

NOTE
yyAll of the features are disabled, except for Brightness, Contrast, Volume, Input, OSD
Lock in Settings, and the Exit button.
ENG
ENGLISH
1
Settings
Language
32
USER SETTINGS
Auto Configuration
Auto Configuration
Do you want to Auto Configuration?
ENGLISH
ENG
1 To view the OSD menu, press the joystick button on the
Easy control
bottom of the monitor and then enter the Menu.
2 Go to Auto Configuration by moving the joystick.
3 Configure the options following the instructions that appear in
4
5
the bottom right corner.
If you want to configure an upper menu, or another option,
move the joystick ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick ◄ until
you exit.
Yes
Cancel
Function
Screen
Settings
Auto
Configuration
Reset
▲ / ▼ : Move
Each option is described below.
Menu > Auto Configuration
Description
Do you want to Auto Configuration?
Yes
Adjusts the Position, Width, and Phase of the screen automatically.
(Activated only when using a D-Sub Analog input.)
Cancel
Cancels the Auto Configuration.
/ ► : OK
◄ : Back
USER SETTINGS
Reset
Reset
Do you want to reset your settings?
Easy control
bottom of the monitor and then enter the Menu.
Go to Reset by moving the joystick.
5
Reset
Cancel
2
3 Configure the options following the instructions that appear in
the bottom right corner.
If you want to configure an upper menu, or another option,
move the joystick ◄ or press it ( / OK).
If you want to exit the OSD menu, move the joystick ◄ until
you exit.
ENG
ENGLISH
1 To view the OSD menu, press the joystick button on the
4
33
Function
Screen
Settings

Auto
Configuration
Reset
▲ / ▼ : Move
Each option is described below.
Description
Menu > Reset
Do you want to reset your settings?
Reset
Restores the default settings.
Cancel
Cancels the Reset.
/ ► : OK
◄ : Back
34
TROUBLESHOOTING
ENGLISH
ENG
TROUBLESHOOTING
Nothing is displayed on the screen.
Is the monitor's power cord plugged yy Check if the power cord is correctly plugged in to the power outlet.
in?
yy Confirm there is power available at the AC plug by plugging in a lamp
or another electrical device.
Is the power LED on?
yy Check the power cable connection and press the power button..
Is the power on and the power LED
displaying white?
yy Check that the connected input is enabled (Menu - Input).
Is the power LED blinking?
yy If the monitor is in power-saving mode, move the mouse or press
any key on the keyboard to switch the display on.
y
y Check if the computer is turned on.
yy 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.
yy This is displayed when the signal cable between the PC and the
monitor is missing or disconnected. Check the cable and reconnect.
Is the OUT OF RANGE message
being displayed?
Is the No Signal message being
displayed?
The OSD Lock message is being displayed.
Are some functions not available
yy The OSD is locked. Go to Menu > Settings and set OSD Lock to Off.
when you press the Menu button?
The screen retains an image.
Does image sticking occur even
when the monitor is turned off?
yy Displaying a still image for a prolonged time may cause damage to
the screen, resulting in the retention of the image.
yy To extend the lifetime of the monitor, use a screensaver.
Screen display is unstable and shaky / Images displayed on the monitor leave shadow trails.
Did you select the appropriate reso- yy If the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the
lution?
screen may be flickering. Change the resolution to 1080P or the
recommended resolution.
NOTE
yy 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.
yy Horizontal Frequency: The time it takes to display one horizontal line is called the horizontal cycle.
The number of horizontal lines displayed in one second can be calculated by dividing one by the
horizontal cycle. This is called horizontal frequency and is represented by kHz.
TROUBLESHOOTING
35
NOTE
The display color is abnormal.
Does the display appear discolored
(16 color)?
Does the display color appear unstable or in monochrome?
Are there spots on the screen?
yy Set the color to 24 bit (true color) or higher. In Windows, go to Control
Panel > Display > Settings > Color Quality.
yy Check if the signal cable is connected properly. Reconnect the cable
or reinsert the PC's video card.
yy When using the monitor, pixilated spots (red, green, blue, white, or
black) may appear on the screen. This is normal for the LCD screen.
It is not an error nor is it related to the monitor's performance.
No sound from the headphone port.
Are the D-Sub and DVI connected? yy D-Sub and DVI do not support audio.
yy Audio may not be supported, depending on the type of cable you use.
Are images displayed using DP
yy Make sure that the headphone port connections are made properly.
(DisplayPort) or HDMI input without yy Try increasing the volume with the joystick.
sound?
yy 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.
ENG
ENGLISH
yy Check if the video card's resolution or frequency is within the range allowed by the monitor and set to
the recommended (optimal) resolution in Control Panel > Display > Settings.
yy Failing to set 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.
yy The configuration procedure may differ depending on your computer and/or operating system. Also,
some video cards may not support certain resolutions. If this is the case, contact the manufacturer of
the computer or video card for assistance.
yy Some video cards may not support 1920 x 1080 resolution.
If the resolution cannot be displayed, contact the manufacturer of your video card.
36
PRODUCT SPECIFICATION
ENGLISH
ENG
PRODUCT SPECIFICATION
LCD Screen
Resolution
Video Signal
Input Connector
Power
Stand Angle
Environmental
Conditions
Dimension
Weight (Without
Packaging)
Type
60.9 cm TFT (Thin Film Transistor)
LCD (Liquid Crystal Display) Screen
Diagonal length of the screen: 60.9 cm
24" class (24" / 60.9 cm diagonal)
Pixel Pitch
0.27675 mm x 0.27675 mm
Maximum Resolution
Analog, HDMI
1920 x 1080 @ 60 Hz
DVI-D, DisplayPort
1920 x 1080 @ 144 Hz
Recommended Resolution 1920 x 1080 @ 60 Hz
Horizontal Frequency
Analog, HDMI
30 kHz to 135 kHz
DVI-D, DisplayPort
30 kHz to 160 kHz
Vertical Frequency
Analog, HDMI
56 Hz to 120 Hz
DVI-D, DisplayPort
56 Hz to 144 Hz
Synchronization
Separate Sync.
USB 1, 2, USB UP, DP(DisplayPort) IN, D-SUB IN, DVI-D IN, HDMI IN 1, 2, HP OUT
Voltage
AC 100-240 V~ 50 / 60 Hz 0.8 A
Power consumption (Typ.) On Mode ≤ 23 W
Power Saving Mode ≤ 1.2 W
Off Mode ≤ 0.3 W
Forward/Backward: -5° to 20° (Head)
Operating Condition
Temperature: 10°C to 35°C; Humidity: 10% to 80%
Storing Condition
Temperature: -20°C to 60°C; Humidity: 5% to 90%
Monitor Size (Width x Height x Depth)
With stand
567.6 mm x 401.2 mm x 248 mm
(22.3 inch x 15.7 inch x 9.7 inch)
Without Stand
567.6 mm x 353.9 mm x 57.3 mm
(22.3 inch x 13.9 inch x 2.2 inch)
With stand
5.43 kg (11.9 lb)
Without Stand
3.83 kg (8.4 lb)
The specifications are subject to change without notice.
PRODUCT SPECIFICATION
Preset Mode, PC
Horizontal Frequency (kHz) Vertical Frequency (Hz)
Polarity (H/V)
720 x 400
640 x 480
640 x 480
800 x 600
800 x 600
800 x 600
1024 x 768
1024 x 768
1024 x 768
1280 x 1024
1280 x 1024
1280 x 1024 *
1920 x 1080
1920 x 1080 **
1920 x 1080 **
31.468
31.469
37.5
37.879
46.875
76.302
48.363
60.123
97.551
63.981
79.976
130.035
67.5
137.26
158.11
-/+
-/-/+/+
+/+
+/-/+/+
+/+/+
+/+
+/+/+/+/-
70.08
59.94
75
60.317
75
119.972
60
75.029
119.989
60.02
75.025
119.958
60
119.98
144
Remarks
* 1280 x 1024 @ 120 Hz: HDMI not supported.
** 1920 x 1080 @ 120 Hz/144 Hz: HDMI/D-Sub not supported.
HDMI Timing (Video)
Preset Mode, PC
Horizontal Frequency (kHz)
Vertical Frequency (Hz)
480P
720P
1080P
31.5
45
67.5
60
60
60
Power LED
Mode
LED Color
On Mode
White
Power Saving Mode
Blinking in white
Off Mode
Off
Remarks
ENG
ENGLISH
Factory Support Mode
(Preset Mode, DisplayPort/D-SUB/DVI-D/HDMI PC)
37
38
PROPER POSTURE
ENGLISH
ENG
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.
yy Take a break for approximately 10 minutes every hour to reduce any fatigue caused by long-time
usage.
yy The stand of the touch monitor allows the product to be used in the optimum position.
Adjust the stand angle from -5° to 20° to obtain the best view of the screen.
You should be looking
slightly down at the
screen.
Adjust the angle
-5° to 20°
So that there is no
reflection or glare from
the screen.
Place your hands gently
on the keyboard,
keeping your arms bent
at the elbows
and extended
horizontally in front of
you.
Declaration of Conformity
Trade Name: LG
Model: 24GM77
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.
Model
Serial No.
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.
Refer to ENERGY STAR.gov for more information on the ENERGY STAR program.