User Manual
KOORUI Monitor
Product Manual
MODEL GN01
Display
Screen Form
Screen Size
Response Time(G/G)
Display Color
Image Ratio
Perspective(typ.)
Resolution
Pixel Distance
Maximum Refresh Rate
Viewing Angle（Horizontal/Vertical）
Static Contrast
Dynamic Contrast
Color Gamut
FLAT, VA
27 Inches
1ms (MPRT）
16.7M Colors
16: 9
300cd/m2
1920*1080
0.3114 mm x 0.3114 mm
165HZ
178°/178°
3000:1
20000000:1
DCI P3 90% (1976）
Product 3D Display
With Bracket
Without Bracket
Product Packaging
613.5×472.2×215.0mm，24.2×18.6×8.5 inch
613.5×362.5×74.1mm，24.2×14.3×2.9 inch
704×151×470 mm，27.7×5.9×18.5 inch
Inputs
DP 1.2
HDMI 1.4
1
2
Environment
Working Temperature
Storage Temperature
Working Humidity
Storage Humidity
Altitude
0-40℃
-20~60℃
10%~80%
5%~95%
Below 5000m
Product Weight
Product Net Weight (including bracket))
Product Net Weight (Without Bracket)
Package Weight
4.15KG，9.15 lbs
3.60KG，7.94 lbs
5.81KG，12.81 lbs
Features
Output Model Type
Language
Eye Saver Mode
Monitor Bracket
Wall-Mount（Size）
Free Sync
Timer
Output:Audio / Headphone（3.5mm）
Digital Signal
Chinese, English, French, German, Italian, Portuguese, Spanish,
Korean, Japanese, Hungarian, Polish, Swedish, Russian,
Vietnamese, Ukrainian Optional
YES
Detachable
75mm×75mm
YES
YES
1
Physical Properties
Power Type
Input Current
Power consumption
DC power cord
12V 2.5A
Boot≤30W, Sleep≤0.5W
Table of contents
ChapterⅠAttention
Safety Precautions
Storage Precautions
Product Placement Space
Protection Recommendations
Product Pick-and-Place
1.1
1.2
1.3
1.4
1.5
Product Accessories
Bracket Installation
Monitor Disassembly
Interface Description
Adjust Product Inclination
Anti-theft Lock
2.2.1
2.2.2
2.3.1
2.3.2
Self-contained Base Installation
VESA Bracket Installation
VESA Bracket Removal Diagram
Disassembly Diagram of the Base
4.1.1
4.1.2
Resolution setting
Refresh rate setting
2.1
2.2
2.3
2.4
2.5
2.6
Chapter Ⅱ Preparation Before Use
Chapter Ⅲ OSD Function
Resolution and Refresh Rate Setting
Monitor Extension Application
Display Sound Settings
Display Orientation Settings
4.1
4.2
4.3
4.4
Chapter Ⅳ Common Applications
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Chapter Ⅴ Q&A
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ChapterⅠAttention
Safety Precautions1.1
WARNING: Serious or fatal injury may result if instructions are not followed.
CAUTION: Personal injury or damage to properties may result if instructions are
not followed.
Storage Precautions1.2
Do not store the product near water sources or damp places, such as bathrooms,
kitchens, basements, swimming pools, etc.
Make sure that the device is installed in a stable place. If it falls, it may cause
personal injury or equipment damage;
Store in a cool, dry and ventilated place. Keep away from radiation and heat
sources;
Do not cover or block the ventilation holes on the rear case, and do not place
it on a bed, sofa, blanket, or similar surface;
Ν
Ν
Ν
Ν
Risk of electric shock. Do not open.
(CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE BACK COVER (OR BACK CASE). There are no user-operable parts
inside. If there needs cleaning and maintenance, please leave it to professional
maintenance personnel.
This symbol indicates that high voltage is present inside. Do not make any kind
of contact with any internal parts of this product.)
This symbol indicates that there has
high pressure inside the product.
Please do not have any form of contact
with internal components of this product.
AC voltage: Rated
voltage marked with this
symbol is AC voltage.
This symbol indicates that this product
has included important literature
concerning operation and maintenance.
DC voltage: Rated
voltage marked with this
symbol is DC voltage.
Class II product:
This symbol indicates that a safety
connection to electrical earth (ground)
is not required.
If this symbol is not present on a
product with a mains lead, the product
MUST have a reliable connection to
protective earth (ground).
Reference:
This symbol indicates
that users need to consult
further user manuals for
more safety-related
information.
01
The power supply voltage range of the device operation is indicated on the label
on the rear case. If you are not sure about the supplied voltage, you can consult
the local power company;
When the device is not in use for a long time, please cut off the power supply to
prevent the product from being damaged by lightning strikes or abnormal power
voltage in thunderstorms;
Do not overload the socket, which may cause fire and electric shock;
Do not put foreign objects into the machine, which may cause a short circuit or
cause fire or electric shock;
Do not disassemble or repair this product by yourself. If there is a fault, please
contact the after-sales service personnel;
Do not excessively pull or twist the power cord;
Ν
Ν
Ν
Ν
Ν
Ν
Protection Recommendations1.4
Eye health advice:
To avoid eye strain, neck, arm, back, and shoulder pain from prolonged use of a
monitor, please pay attention to the following:
Keep a distance of 20-28 inches (about 50-70cm) between the eyes and the screen;
Adjust the angle of the product so that there is no reflection on the screen;
Please take a 20-minute break after using the monitor for 2 hours.
Ν
Ν
Ν
Product Placement Space1.3
Make sure to leave enough space for ventilation around the product. When
installing the product, make sure to leave at least the area around the product,
as shown below.
10cm
10cm10cm
10cm
10cm
02
Don't put pressure directly on
the screen.
Do not hold the screen while
moving the product.
Ν
Ν
Hold the bottom corner or edge of
the product frame to move it.
Ν
Product Pick-and-Place 1.5
Low blue light instructions
The blue light wavelength is in the blue light band, and the monitor has the function
of reducing the intensity of blue light;
"Eye Protection Mode" can be selected from the menu to protect your eyes.
Cleaning your monitor
To clean the screen, lightly dampen a soft, clean cloth with water. If possible, use a
special screen-cleaning wipe or detergents suitable for antistatic coatings.
Please do not use benzene, thinner, ammonia containing large amounts of alcohol
or strong chemical ingredients that may cause discoloration or cracking of the exterior
of the product or peel off the surface of the panel.
When taking a break, take your eyes off the monitor and focus on the distance
for 20 seconds.
When taking a break, stretch or soothe the neck, arms, back, and shoulders;
Ν
Ν
03
Chapter Ⅱ Preparation Before Use
Product Accessories2.1
Your monitor comes with the following parts. Please check that all parts have been
received and contact Koorui if any are missing.
Adapter
User Manual
Bracket Installation2.2
2.2.1 Self-contained Base Installation
Put a soft cloth on the table to protect the
product (or use the foam vinyl that comes
with the product packaging), and place the
product face down on the soft cloth.
Push the column into the main body of the
monitor in the direction indicated by the
arrow;
Check whether the bracket and the main
body are firmly connected;
Column
DisplayPort Cable
Outer box Bottom BaseMonitor
HDMI Cable
04
2.2.2 VESA Bracket Installation
Ν WARNING: Wall mounting screws require M4 screws , the length should not
exceed 8mm，avoid damage to the product due to excessive length.
VESA support
75×75mm
Assembled the
VESA screws
Ν
Ν
Wall Mount Notes
Please purchase the VESA bracket device separately.
For more information, please refer to the user guide provided with your VESA
bracket device.
Insert the base into the column according
to the direction shown in the figure;
Check whether the base and the column
are firmly connected, and place the
installed product on a stable platform
according to figure 1.5 - monitor
pick-and-place method.
05
2.3.1 VESA Bracket Removal Diagram
2.3 Monitor Disassembly
Removed the
VESA screws
Ν
Ν
Just remove the screws as shown in the figure. During the process of removal,
please avoid the monitor from falling;
Please follow figure 1.5 (operation of protecting the monitor) to pick and place
the monitor,
06
2.3.2 Disassembly Diagram of the Base
Hold down the "PUSH" button and exit the column assembly according to the
operation direction in the figure;
Place the foamed polystyrene (Mat) in
the package on the floor and place the
product face down on the foamed
polystyrene as shown. If you don't have
styrofoam, use a thick cushion.
Pre-press the hook and separate the column according to the direction shown in
the figure;
07
Ν
Ν
Connect and use the PC
Choose the connection method that suits your PC.
Different products may have different connecting parts.
2.4 Interface Description
Use HDMI cable to connect to your PC.
HDMI 1 HDMI 2
Connect to the DC power cord.
Interface Description of interface
Use DP cable to connect to your PC.
DP
HDMI 1 HDMI 2 DP DCAUDIO
Connect to audio output devices that support 3.5 mm headphones.
Note: DVI and VGA do not support audio transmission.
08
Ν DP interface supports 1920*1080,165Hz; HDMI 2.0 supports 1920×1080, 144Hz.
Please choose the connection method you need.
Ν
Ν
Ν
Ν
Connect and use the source device.
Read the following before installing the product.
Before installing, please check the shape of the two ports of the attached signal
cable and the shape and location of the ports on the product and external
equipment.
Before connecting the signal lines, be sure to connect from the product and the
external equipment to prevent damage to the product due to short circuits or
over-current.
Connect the power cord back to the product and external equipment after
properly connecting all the signal wires.
After the installation, please be sure to read the user guide to familiarize with
the correct use of products required products’ features, cautions, and other
information.
As for the operation and use of the source device, please read the user guide provided by
the source device. If the original device signal is abnormal, it is recommended to contact
the source device manufacturer rst.
If you need Koorui’s assistance, please contact Koorui’s after-sales sta.
2.5 Adjust Product Inclination
Adjustable display with
titl from -5°~20°
09
2.6 Anti-theft Lock
Ν
Ν
Please buy the anti-theft lock device separately yourself.
For more information, please refer to the user guide provided with your
anti-theft lock device.
To lock an anti-theft locking device:
Anti-theft lock is an anti-theft device that allows users to lock the product so as to use
the product safely in public places.
10
Chapter Ⅲ OSD Function
The OSD function information table of this product is as follows. If there is any
question about the operation process, please contact Koorui customer services.
Menu
Select this
feature
Select the
left item
Select the
Right item
Select the menu interface to enter the main display interface;
Under the main menu interface: (There are prompts for specific
functions below the menu)
First level menu: Returns the main menu.
Second level/third level menu: Back to the upper level menu.
Alternatively, you can select the left key.
Select the shortcut key 2 below the menu interface;
Under the main menu interface: (There are prompts for specific
functions below the menu)
Go to the next level menu or move the cursor to the right.
Select the shortcut key 1 below the menu interface;
Under the main menu interface: (There are prompts for specific
functions below the menu)
Moves the cursor up or indicates the progress bar increments;
Below the selection menu interface is the return selection menu;
Under the main menu interface: (There are prompts for specific
functions below the menu)
Moves the cursor up or indicates the progress bar increments;
Push the button up or click the button to pop up the selection menu;
Middle key: Power-off.
ON: Normal power-on state. Flashing: power-saving/standby state.
Left key
Right key
Up key
OSD Menu
Down key
Power light
11
Select the corresponding Crosshair and enter
the shooting game to automatically match the
corresponding target shape
Crosshair
/
Select the corresponding timing gear
Timing mode
/
MPRT
Open or close MPRT mode;
After opening can be extra fast for 1ms
/
Game mode
FreeSync
Premium
/
Enable or disable FreeSync mode
Dark field
bright effect
/
Turn on or off the shadow mode, and games with
low darkness will become brighter.
Response time
Select the OD gear, and the grayscale response
time corresponds to the power on
/
Adjusts the monitor sharpness
Sharpness
/
Monitor gamma selection
Gamma 1/ Gamma 2
Gamma
Gamma 1 and
Gamma 2
HDR ON and OFF
Turns on the HDR function
Display
Aspect
Automatic
Automatic acquisition of the input source image ratio
Sets Aspect to 16:9
16:9
Sets Aspect to 4:3
4:3
Brightness
adjustment
Brightness
/
Adjusts the brightness of your monitor
Contrast ratio
/
Adjusts the contrast ratio of your monitor
DCR
Turns on DCR mode.
Automatically adjusts brightness and contrast ratio
according to the input source
/
Color
temperature
Standard color
temperature
/
Changes the screen color temperature to the
default factory settings
Warm
/
Sets the screen color temperature to warm
Cool
Sets the screen color temperature to cool
/
User settings R/G/B
Fine-tune red/blue/green color saturation levels.
Values closer to 100 indicate greater color intensity.
Automatic input
Automatic input of the signal source
/
Input source
HDMI1
/
Receives input signals from HDMI 1
HDMI2
/
Receives input signals from HDMI 2
DP
Receives input signals from DP
/
12
Preset mode
RCG mode
Enables the RCG mode.
This is the best experiences for RCG games.
/
Standard mode
Enables the standard mode (default)
You can set options freely in this mode.
/
FPS mode
/
Enables the FPS mode.
This is the best experiences for FPS games.
RPG mode
Enables the RPG mode.
This is the best experiences for RPG games.
/
DCI-P3 gamut
calibration mode
Enables the DCI-P3 gamut calibration mode
/
sRGB gamut
calibration mode
Enables the SRGB gamut calibration mode
/
Cinema Mode
/
Enables the cinema mode.
This is the best experiences for cinema mode.
Eye Care Mode
/
Enables the eye care mode.
Reduces blue light and relieves eye fatigue.
Reading Mode
Enables the reading mode.
This is the best experiences for e-book reading.
/
Settings
Audio settings
Adjusts Audio OUT volume
/
Language
selection
Chinese, English,
French, German,
Italian, Portuguese,
Spanish, Korean,
Japanese,
Hungarian,
Polish, Swedish,
Russian,
Vietnamese,
Ukrainian
Select OSD menu language
Shortcut 1
Settings
Shortcut 1 Settings
Brightness, input
source selection,
preset mode,
volume, and FPS
mode
Shortcut 2
Settings
Shortcut 2 Settings
Brightness, input
source selection,
preset mode,
volume, and FPS
mode (not repeatable
with shortcut 1)
Version
information
Obtains the software version information of this
product
/
Reset
Select factory reset.
All items except OSD language will be restored to
the factory settings.
Chinese, English,
French, German,
13
Chapter Ⅳ Common Applications
4.1.1 Resolution settings
4.1 Resolution and Refresh Rate Setting
Windows：Windows Settings
>
System
>
Screen
>
Display Resolution
MAC：MAC System Preferences
>
Monitor
>
Optimization
>
Scaling
4.1.2 Refresh rate setting
Windows：Windows Settings > System > Screen > Advanced Display Settings > Refresh Rate
MAC：MAC System Preferences > Monitor > Refresh Rate
4.2 Monitor Extension Application
Screen expansion function setting.
Windows：Windows Settings > System > Screen > Multiple Display Settings
> select “Extend This Monitor”
MAC：MAC System Preferences
>
Monitor
>
Arrangement
>
Mirror Display
4.3 Display Sound Settings
HDMI, DP sound effect selection;
Windows：Windows Settings > System > Sound > Output > select“Output Settings”
MAC：MAC System Preferences
>
Sound
>
Output
4.4 Display Orientation Settings
Windows:Windows Settings > System > Screen > Display Orientation
MAC:MAC System Preferences > Monitor > Optimization > Rotate
14
Ν
Ν
Ν
Ν
The following table lists some common monitor problems that you may
encounter and their solutions.
If you can't solve your difficulties, please contact Koorui customer services.
Official website: http://www.koorui.net/
E-mail: suppor[email protected]
Chapter Ⅴ Q&A
All four sides of the screen
appear blank when using
an HDMI cable or DP
cable to connect the
product and PC.
The blank that appears on the screen has nothing to do with our product.
The blank on the screen is caused by a PC or graphics card.
Please adjust the screen size in your graphics card's HDMI or DVI settings
to resolve this issue.
If the graphics card settings menu does not have the option to resize the
screen, please update the graphics card driver program to the latest version.
(Contact your graphics card or PC manufacturer for more details on
adjusting your screen.)
The power LED goes
out. The screen won't
turn on.
Check if the power cord is connected correctly. If there is a problem with
the monitor screen, run a self-diagnostic to check that the monitor is
working properly.
Display "Over Frequency"
This message appears when the signal from the graphics card exceeds
the maximum resolution or frequency of the product.
Change the maximum resolution and frequency to suit product performance.
The image on the screen
looks distorted.
Check the cable connection with the product.
The image is not clear.
Remove all accessories (video extension cord, etc.) and try again.
Set the resolution and frequency to the recommended level.
The screen is unstable
and shaky. There is a
shadow or ghosting on
the screen.
Check if the resolution and frequency of the PC are within the range of the
resolution and frequency that compatible with the product. Next, change
the settings if needed.
The screen is too bright,
while the image is too
dark.
Adjust the brightness and the contrast.
The screen colors do not
match. Colors on the
screen are shaded and
distorted. The white color
doesn't look really white.
Change the color settings.
15
There is no image on the
screen, and the power
LED flashes every 0.5
to 1 second.
The product runs under the power-saving mode;
Press any key on the keyboard or move the mouse to get back to the
normal operating mode;
Use the Caps Lock on your PC keyboard to see if your computer is
operating or rebooting your device.
The video played
intermittently.
The play of large high-definition video files can be spotty. This may be
because the video player is not optimized for PC resources.
Try playing the file on another video player.
The monitor is no sound.
You will not hear the sound if you connect an input device with an
HDMI-DVI cable. Please use an HDMI cable or a DP cable to connect
the device.
Re-check the condition of the connected audio cable and/or adjust
the volume.
Check the volume.
Check if the audio is set to silent.
Monitor sound output is not set, refer to 4.3
Volume is too low.
Adjust the volume.
If the volume is still low after turning it all the way up, please adjust the
volume of the PC sound or the software program.
Video is available,
but no sound.
If you connect the input device with an HDMI-DVI cable, then there will
be no sound to be heard.
Please connect the device with an HDMI cable or DP cable.
Monitor sound output is not set, please refer to 4.3.
"XXS Power.
An energy efficiency
prompt appears on the
monitor or there shows
"XXS Power" on the top
left corner.
It’s because the product you buy and sell is a European product, which
should comply with the European energy efficiency requirements.
Monitor quickly goes
dark (no display).
In the power setting state, the monitor shuts down for a short time;
Windows Settings > System > Power and Sleep > Screen > Please reset
the time.
There is a shadow or
ghosting on the screen.
Open OD acceleration.
Do not place static pictures for a long time, it is recommended to use the
background picture to select dynamic pictures.
Can’t adjust the brightness
and the contrast.
1. Check if the HDR/eye protection/DCR automatic/cinema/FPS/RTS
mode is turned on. In this mode, the brightness/contrast will automatically
adjust and cannot be adjusted manually. It is recommended to turn this
mode off and switch to the standard mode by default;
2. The monitor can be restored to factory settings through the OSD button;
Tap Key M to wake up the menu > Reset > YES.
The resolution is only
1920*1080, and the
refresh rate is only 60HZ.
1. In the safe mode of the host, the resolution cannot be adjusted, please
return to safe mode;
2. HDMI 1.4 only supports 1K 144HZ, 2K 60HZ; it is recommended to
replace HDMI 2.0 interface or DP interface;
16
