AOC U27U2DP User manual

1
©
www.aoc.com
2023 AOC.All Rights Reserved
®
LCD Monitor
User Manual
U27U2DP

i
Safety ................................................................................................................................................................................... 1
National Conventions ................................................................................................................................................ 1
Power ........................................................................................................................................................................ 2
Installation ................................................................................................................................................................. 3
Cleaning .................................................................................................................................................................... 4
Other ......................................................................................................................................................................... 5
Setup .................................................................................................................................................................................... 6
Contents in Box......................................................................................................................................................... 6
Setup Stand & Base.................................................................................................................................................. 7
Adjusting Viewing Angle............................................................................................................................................ 8
Wall Mounting............................................................................................................................................................ 9
Connecting the Monitor ........................................................................................................................................... 10
DisplayPort multi-stream transport (MST) mode..................................................................................................... 12
HDR ........................................................................................................................................................................ 13
KVM ........................................................................................................................................................................ 14
Adjusting............................................................................................................................................................................. 15
Hotkeys ................................................................................................................................................................... 15
OSD Setting ............................................................................................................................................................ 16
Luminance ................................................................................................................................................... 17
Color Setup.................................................................................................................................................. 18
Picture Boost ............................................................................................................................................... 19
OSD Setup................................................................................................................................................... 20
PIP Setting .................................................................................................................................................. 21
Game Setting............................................................................................................................................... 22
Extra ............................................................................................................................................................ 23
Exit............................................................................................................................................................... 24
LED Indicator .......................................................................................................................................................... 25
Troubleshoot....................................................................................................................................................................... 26
Specication ....................................................................................................................................................................... 27
General Specication ............................................................................................................................................. 27
Preset Display Modes ............................................................................................................................................ 29
Pin Assignments...................................................................................................................................................... 30
Plug and Play .......................................................................................................................................................... 31

1
Safety
National Conventions
The following subsections describe notational conventions used in this document.
Notes, Cautions, and Warnings
Throughout this guide, blocks of text may be accompanied by an icon and printed in bold type or in italic type. These
blocks are notes, cautions, and warnings, and they are used as follows:
NOTE: A NOTE indicates important information that helps you make better use of your computer system.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
WARNING: A WARNING indicates the potential for bodily harm and tells you how to avoid the problem. Some warnings
may appear in alternate formats and may be unaccompanied by an icon. In such cases, the specic presentation of the
warning is mandated by regulatory authority.

2
Power
The monitor should be operated only from the type of power source indicated on the label. If you are not sure of the
type of power supplied to your home, consult your dealer or local power company.
The monitor is equipped with a three-pronged grounded plug, a plug with a third (grounding) pin. This plug will t
only into a grounded power outlet as a safety feature. If your outlet does not accommodate the three-wire plug, have an
electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not defeat the safety purpose of
the grounded plug.
Unplug the unit during a lightning storm or when it will not be used for long periods of time. This will protect the
monitor from damage due to power surges.
Do not overload power strips and extension cords. Overloading can result in re or electric shock.
To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate congured
receptacles marked between 100-240V AC, Min. 5A.
The wall socket shall be installed near the equipment and shall be easily accessible.

3
Installation
Do not place the monitor on an unstable cart, stand, tripod, bracket, or table. If the monitor falls, it can injure a
person and cause serious damage to this product. Use only a cart, stand, tripod, bracket, or table recommended by
the manufacturer or sold with this product. Follow the manufacturer’s instructions when installing the product and use
mounting accessories recommended by the manufacturer. A product and cart combination should be moved with care.
Never push any object into the slot on the monitor cabinet. It could damage circuit parts causing a re or electric
shock. Never spill liquids on the monitor.
Do not place the front of the product on the oor.
If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and follow the kit
instructions.
Leave some space around the monitor as shown below. Otherwise, air-circulation may be inadequate hence
overheating may cause a re or damage to the monitor.
To avoid potential damage, for example the panel peeling from the bezel, ensure that the monitor does not tilt
downward by more than -6.5 degrees. If the -6.5 degree downward tilt angle maximum is exceeded, the monitor damage
will not be covered under warranty.
See below the recommended ventilation areas around the monitor when the monitor is installed on the wall or on the
stand:
Installed with stand
Installed with stand
12 inches
30cm
4 inches
10cm
4 inches
10cm
4 inches
10cm
Leave at least this much
space around the set

4
Cleaning
Clean the cabinet regularly with a water-dampened, soft cloth.
When cleaning use a soft cotton or microber cloth. The cloth should be damp and almost dry, do not allow liquid
into the case.
Please disconnect the power cord before cleaning the product.

5
Other
If the product is emitting a strange smell, sound or smoke, disconnect the power plug IMMEDIATELY and contact a
Service Center.
Make sure that the ventilating openings are not blocked by a table or curtain.
Do not engage the LCD monitor in severe vibration or high impact conditions during operation.
Do not knock or drop the monitor during operation or transportation.
The power cords shall be safety approved. For Germany, it shall be H03VV-F, 3G, 0.75 mm2, or better. For other
countries, the suitable types shall be used accordingly.
Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the equalizer to
maximum increases the earphones and headphones output voltage and therefore the sound pressure level.

6
Setup
Contents in Box
Warranty Card
Monitor
Quick Start Stand Base
Power Cable HDMI Cable DisplayPort
Cable
USB C-C
Cable
USB C-A
Cable
USB C-C/A
Cable
Not all signal cables will be provided for all countries and regions. Please check with the local dealer or AOC branch
o󰀩ce for conrmation.

7
Setup Stand & Base
Please setup or remove the base following the steps as below.
Setup:
3
1
4
2
Remove:
3
4
2
1
100mm
100mm M4x10mm
Specification for wall-mounted screw: M4*10 mm Specification for base screw: M6*13 mm (effective thread 5.5 mm)
M=4.0Max
Dk=8.0±0.2 H=2.0±0.1
- 0.5
L=10+0
D3.86-3.92
M4-P0.7

8
Adjusting Viewing Angle
For optimal viewing it is recommended to look at the full face of the monitor, then adjust the monitor’s angle to your own
preference.
Hold the stand so you will not topple the monitor when you change the monitor’s angle.
You are able to adjust the monitor as below:
-6.5° ~ 23°
150
NOTE:
Do not touch the LCD screen when you change the angle. Touching the LCD screen may cause damage.
Warning：
1. To avoid potential screen damage, such as panel peeling, ensure that the monitor does not tilt downward by more
than -6.5 degrees.
2. Do not press the screen while adjusting the angle of the monitor. Grasp only the bezel.

9
Wall Mounting
Preparing to Install An Optional Wall Mounting Arm.
This monitor can be attached to a wall mounting arm you purchase separately. Disconnect power before this procedure.
Follow these steps:
1. Remove the base.
2. Follow the manufacturer’s instructions to assemble the wall mounting arm.
3. Place the wall mounting arm onto the back of the monitor. Line up the holes of the arm with the holes in the back of
the monitor.
4. Reconnect the cables. Refer to the user’s manual that came with the optional wall mounting arm for instructions on
attaching it to the wall.
Noted: VESA mounting screw holes are not available for all models, please check with the dealer or o󰀩cial
department of AOC.
-5°
0° 90°
6.5 6.5
* Display design may di󰀨er from those illustrated.
Warning：
1. To avoid potential screen damage, such as panel peeling, ensure that the monitor does not tilt downward by more
than -6.5 degrees.
2. Do not press the screen while adjusting the angle of the monitor. Grasp only the bezel.

10
Connecting the Monitor
Cable Connections In Back of Monitor:
1 3
2 4
5
6
7
8
911 12
10 13
1. HDMI
2. DisplayPort (input)
3. DisplayPort (output)
4. USB-C1 (DisplayPort Alt mode, maximum PD90W)
5. USB-C2 (USB upstream, maximum PD15W)
6. RJ45 (network connector)
7. Earphone
8. USB3.2 Gen2+ downstream
9. USB3.2 Gen2 downstream+charging
10. USB3.2 Gen2+ downstream
11. USB3.2 Gen2+ downstream
12. Power
13. Power Strict
Connect to PC
1. Connect the power cord to the back of the display rmly.
2. Turn o󰀨 your computer and unplug its power cable.
3. Connect the display signal cable to the video connector on your computer.
4. Plug the power cord of your computer and your display into a nearby outlet.
5. Turn on your computer and display.
If your monitor displays an image, installation is complete. If it does not display an image, please refer Troubleshooting.
To protect equipment, always turn o󰀨 the PC and LCD monitor before connecting.

11
Connect the USB C-C Cable：
a
USBC1
b
OR
USB C
Connect the USB C-A Cable：
ba
USBC2
c
HDMI
HDMI
OR
USB A
DP-IN
OR
Note:
1). Before using the RJ45 Ethernet connector, please visit the official website https://www.aocmonitor.com.cn, go to the
U27U2DP product page -》Data Download and download the Windows driver for the RJ45 Ethernet connector.
2). The multi-function USB-C connector (USB-C1) is used for screen projection, and mobile devices need to support
USB-C (DP Alt) function.
3). The USB-C2 connector has the function of USB upstream data transmission, and the USB-C to USB-C cable or
USB-C to USB-A cable with data transmission function can be used to connect the USB-C2 connector of the monitor to
the computer, so that the USB-A connector (USB downstream connector) can transmit data. Without this connection, the
USB-C2 connector can only supply external power, and the maximum output power is 15W.
4). The USB-A connector (USB downstream connector) may transmit data only when the monitor and the computer are
connected by a USB-C to USB-C cable or USB-C to USB-A cable with data transmission function, such as connecting a
mouse, keyboard, USB flash drive, etc. Without this connection, the USB-A connector can only supply external power. It
is recommended to use a USB-A connector to connect a mouse, keyboard, and/or other devices, thus saving computer
connectors.

12
DisplayPort multi-stream transport (MST) mode
This product supports DisplayPort multi-stream transport (MST) mode, and realizes daisy-chain connection of multiple
monitors through a DisplayPort (output) connector.
To daisy-chain the monitor, follow these steps:
1. Confirm whether the computer graphics card (GPU) supports DSC and has DSC enabled on the graphics card.
2. Connect the monitor to the computer or mobile device through the DisplayPort (input) or USB-C1 connector, and
connect this monitor to the second monitor through the DisplayPort (output) connector.
3. Adjust the OSD menu and select the input signal source as DP or USB-C1: press the menu key -》Other -》Input
Selection and set it as DP or USB-C1.
4. The MST feature will be automatically turned on.
Note: If you need to manually adjust the MST feature, please select OSD Settings -》MST. If the input is an HDMI signal
source, the MST feature is Off by default and cannot be adjusted.
Multi-stream transport (MST) through the DisplayPort
DP-IN DP-INDP-OUT
Multi-stream transport (MST) through the USB-C
DP-IN
DP-OUT
USBC1
OR
Maximum resolution of the MST
signal source
Maximum resolution of an
external monitor
Maximum number of external monitors that
can be supported at maximum resolution
3840×2160@60Hz 3840×2160@60Hz 2
Note:
1). The DP multi-stream transport (MST) mode must use a graphics card supporting DSC, and the DP(HBR3) or
USB-C (DisplayPort Alt) (HBR3) signal is input, so that multiple monitors can be daisy-chained through the DP (output)
connector.
2). The maximum resolution of external monitors can reach 3840×2160@60Hz only when the computer graphics card
(GPU) supports DSC, and DSC has been enabled on the graphics card, and the number of external monitors does not
exceed the limit in the above table.
3). The maximum number of external monitors that can be connected will vary depending on the performance of the
graphics card (GPU). It is highly recommended to use a discrete graphics card. The maximum number of monitors
supported includes the first monitor directly connected to the computer. If the first monitor is connected to a laptop, the
number may vary. Please consult the graphics card manufacturer and update the graphics card driver frequently.

13
HDR
It is compatible with input signals in HDR10 format.
The display may automatically activate the HDR function if the player and content are compatible. Please contact the
device manufacturer and the content provider for information on the compatibility of your device and content. Please
select “OFF” for the HDR function when you have no need for automatical activation function.
Display Settings:
a. Enter the “Display Settings,” and select the resolution – 3440x1440, and HDR on.
b. Change to select the resolution – 3440x1440 (if available) to achieve the best HDR effects.

14
KVM
This product supports the KVM feature.
In the full-screen display state, you can control two signal output devices (two computers, or two laptops, or one computer
and one laptop) with a keyboard and mouse set through the KVM feature.
Setup steps:
1. Use the USB-C to USB-C cable to connect the monitor to the first device (computer or laptop) through the USB-C1
connector.
2. Connect the monitor to the second device (computer or laptop) through the HDMI or DisplayPort (input) connector, and
connect the USB-C2 of the monitor to the USB connector of the device using the USB-C to USB-A cable.
3. Connect the peripheral devices (keyboard and mouse) to the USB-A (USB downstream) connector of the monitor.
SETS 1
3
USBC2 (USB UP)
OR
2
USBC1
1
SETS 2
DP-IN
4. Go to the OSD menu. Set Auto, USB-C1 or USB-C2 in OSD Setup -》USB Selection respectively when needed.
If it is set to Auto, the keyboard and mouse connected to the monitor will automatically switch the controlled devices
according to the displayed signal source.
ExitExtra
Luminance Color Setup
H. Position 50
V. Position 0
Transparence 25
Language English
Timeout 10
MST Off
Break Reminder Off
OSD Setup Picture Boost
Game Setting
USB Off USB Selection Auto
PIP Setting
PIP
USB Selection Function description
Auto Automatically select USB-C1 or USB-C2 (USB upstream),
depending on the signal source currently displayed on the screen.
USB-C1 USB upstream path is provided through the The USB-C to USB-C
cable.
USB-C2 The USB upstream path is provided through the USB-C to USB-A
cable.
Note: In PIP/PBP display mode, please switch the USB upstream path through the OSDmenu.

15
Adjusting
Hotkeys
1
2
3
4
5
1 Source/Exit
2 Volume/Λ
3 DisplayPort MST/V
4 Menu/Select
5 Power
Power
Press the power key to turn on/o󰀨 the monitor.
Menu/Select
When the OSD menu is closed, press this button to activate the OSD menu or conrm the function adjustment.
Volume / increase
When the OSD menu is closed, press the “Λ” key to open the volume adjustment bar, and press the “Λ” or “V” key to
adjust the headphone output volume.
Source switching/exit
When the OSD menu is o󰀨, press this key to activate the signal source switching function, press this key continuously to
select the signal source displayed in the information bar, and press the menu key to adjust to the selected signal source.
When the OSD menu is active, this button acts as an exit key (to exit the OSD menu)
DisplayPort MST/Minus
When the OSD menu is o󰀨, press the “ ∨” button to turn the DisplayPort MST on or o󰀨. (If “Input Selection” in the OSD
menu is “Auto” or “HDMI”, the MST feature is O󰀨 by default and cannot be adjusted.)

16
OSD Setting
Basic and simple instruction on the control keys.
Luminance Color Setup Picture Boost OSD Setup ExitExtra
Contrast 50
Brightness 90
Eco Mode Standard
Gamma Gamma 1
DCR Off
HDR Mode Off
Game Setting
PIP Setting
PIP
1). Press the MENU-button to activate the OSD window.
2). Press Vor Λto navigate through the functions. Once the desired function is highlighted, press the MENU-button to
activate it, press Vor Λto navigate through the sub-menu functions. Once the desired function is highlighted, press
MENU-button to activate it.
3). Press Vor Λto change the settings of the selected function. Press AUTO–button to exit. If you want to adjust any
other function, repeat steps 2-3.
4). OSD Lock Function: To lock the OSD, press and hold the MENU-button while the monitor is o󰀨 and then press
power button to turn the monitor on. To un-lock the OSD - press and hold the MENU-button while the monitor is o󰀨
and then press power button to turn the monitor on.
Notes:
1). If the product has only one signal input, the item of “Input Select” is disable to adjust.
2). If the screen size of the product is 4:3 or the input signal resolution is the native resolution, then the item “Image
Ratio” is invalid.
3). The four states of ECO mode (except standard mode), DCR, DCB mode and window highlight can only display one
state at a time.

17
Luminance
Luminance Color Setup Picture Boost OSD Setup ExitExtra
Contrast 50
Brightness 90
Eco Mode Standard
Gamma Gamma 1
DCR Off
HDR Mode Off
Game Setting
PIP Setting
PIP
Contrast 0-100 Contrast from Digital-register.
Brightness 0-100 Backlight Adjustment
Eco mode
Standard Standard Mode
Text Text Mode
Internet Internet Mode
Game Game Mode
Movie Movie Mode
Sports Sports Mode
Reading Reading Mode
Uniformity Uniformity Mode
Gamma
Gamma1 Adjust to Gamma 1
Gamma2 Adjust to Gamma 2
Gamma3 Adjust to Gamma 3
DCR
O󰀨 Disable dynamic contrast ratio
On Enable dynamic contrast ratio
HDR
O󰀨
Set the HDR prole according to your usage
requirements.
Note:
When HDR is detected, the HDR option is
displayed for adjustment.
DisplayHDR
HDR Picture
HDR Movie
HDR Game
HDR Mode
O󰀨 Optimized for the color and contrast of the picture,
which will simulate showing the HDR e󰀨ect.
Note:
When HDR is not detected, the HDR Mode option
is displayed for adjustment.
HDR Picture
HDR Movie
HDR Game
Note:
When “HDR Mode” is set to “non-off”, the items “Contrast”, “Eco mode”, “Gamma” cannot be adjusted.
When “HDR Mode” is set to “non-off”, the items “Contrast”, “Brightness”, “ Eco mode” ，“ Gamma” ，“ DCR"
cannot be adjusted.
When the Color Space under Color Settings is set to sRGB or DCI-P3, the items Contrast, Brightness Scenario Mode,
Gamma, and HDR/HDR Mode cannot be adjusted.

18
Color Setup
Picture Boost OSD Setup ExitExtra
Luminance
Red 50
Green 50
Blue 50
DCB Demo Off
Color Temp. Warm
DCB Mode Off
Color Setup
Game Setting
LowBlue Mode Off
PIP Setting
PIP
Color Gamut Off
Color Temp.
Warm Recall Warm Color Temperature from EEPROM.
Normal Recall Normal Color Temperature from EEPROM.
Cool Recall Cool Color Temperature from EEPROM.
User
Red Gain from Digital-register
Green Gain Digital-register.
Blue Gain from Digital-register
Color Gamut
Panel Native Standard color space panel.
sRGB Recall sRGB Color Temperature from EEPROM.
DCI-P3 DCI-P3 color space.
DCB Mode
Full Enhance Disable or Enable Full Enhance Mode
Nature Skin Disable or Enable Nature Skin Mode
Green Field Disable or Enable Green Field Mode
Sky-blue Disable or Enable Sky-blue Mode
Auto Detect Disable or Enable AutoDetect Mode
OFF Disable or Enable OFF Mode
DCB Demo on or o󰀨 Disable or Enable Demo
LowBlue Mode
Multimedia
Decrease blue light wave by controlling color
temperature
Internet
O󰀩ce
Reading
O󰀨
Red 0-100 Red gain from Digital-register.
Green 0-100 Green gain from Digital-register.
Blue 0-100 Blue gain from Digital-register.
Note:
When “HDR Mode”or “HDR”under “Luminance” is set to “non-off”, all items under “Color Setup” cannot be
adjusted.
When Color Space is set to sRGB or DCI-P3, all other items under Color Settings cannot be adjusted.