AOC U28P2U - Screen

U28P2U - Screen AOC - Free user manual and instructions

Find the device manual for free U28P2U AOC in PDF.

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Product Type Monitor
Screen Size 28 inches
Resolution 3840 x 2160 (4K UHD)
Aspect Ratio 16:9
Panel Type IPS
Brightness 300 cd/m²
Response Time 4 ms (GtG)
Refresh Rate 60 Hz
Viewing Angle 178° / 178°
Connectivity HDMI, DisplayPort, USB-C, USB 3.0 Hub
Special Features Low Blue Light, Flicker-Free, Height Adjustable, Pivot
Dimensions (with stand) 655 x 500 x 211 mm
Weight (with stand) 6.5 kg
Power Supply AC 100-240V, 50/60Hz
Power Consumption (typical) 35 W
VESA Mount 100 x 100 mm
Safety Features Kensington lock slot
Cleaning Instructions Use a soft dry cloth; avoid abrasive or liquid cleaners
Included Accessories Power cord, HDMI cable, DisplayPort cable, USB cable
Repairability Professional repair only; contact AOC support

Frequently Asked Questions - U28P2U AOC

How do I adjust the height and tilt of the monitor?
The monitor stand supports height adjustment, tilt, swivel, and pivot. Use the provided handle to adjust the height and tilt the screen to your preferred angle.
What is the maximum resolution supported via HDMI?
The monitor supports 3840x2160@60Hz via HDMI 2.0 and DisplayPort 1.2. Ensure your cable and source support this resolution.
Does this monitor support HDR?
The U28P2U supports HDR10 input but does not have a high brightness level for true HDR. It can display HDR content with basic compatibility.
How do I enable Low Blue Light mode?
Press the menu button on the monitor, navigate to the Picture menu, and select Low Blue Light. Choose between multiple levels to reduce eye strain.
Can I mount this monitor on a wall?
Yes, the monitor is VESA compliant with a 100x100mm pattern. Remove the stand and attach a compatible wall mount arm.
What is the refresh rate of this monitor?
The standard refresh rate is 60 Hz. It does not support variable refresh rate technologies like FreeSync or G-Sync.
How do I clean the screen safely?
Use a soft, lint-free cloth slightly dampened with water. Do not use alcohol, ammonia, or abrasive cleaners. Wipe gently to avoid scratches.
Why is the monitor not turning on?
Check that the power cord is securely connected to both the monitor and a working outlet. Press the power button on the monitor. If still off, try a different cable or contact support.
Does the USB-C port support video input?
Yes, the USB-C port supports DisplayPort Alt Mode for video input and can also deliver power (up to 65W) to a connected laptop.
How can I reset the monitor to factory settings?
Open the OSD menu by pressing the menu button, navigate to System or Settings, and select Reset. Confirm to restore default settings.

User questions about U28P2U AOC

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Download the instructions for your Screen in PDF format for free! Find your manual U28P2U - AOC and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. U28P2U by AOC.

USER MANUAL U28P2U AOC

natural_image Front view of a desktop computer monitor with a visible 'AOC' logo on the front panel (no additional text or symbols)

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

Connecting the Monitor 9

Wall Mounting....10

Adjusting....11

Hotkeys 11

OSD Setting 13

Luminance 14

Color Setup....15

Picture Boost 16

OSD Setup....17

PIP Setting....18

Game Setting....19

Extra 20

Exit....21

LED Indicator 22

Troubleshoot....23

Specification 24

General Specification 24

Preset Display Modes 25

Pin Assignments....26

Plug and Play 27

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:

AOC U28P2U - National Conventions - 1

NOTE: A NOTE indicates important information that helps you make better use of your computer system.

AOC U28P2U - National Conventions - 2

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

AOC U28P2U - National Conventions - 3

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 specific presentation of the warning is mandated by regulatory authority.

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 fit 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 fire or electric shock.

To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate configured receptacles marked between 100-240V AC, Min. 5A.

The wall socket shall be installed near the equipment and shall be easily accessible.

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 fire or electric shock. Never spill liquids on the monitor.

Do not place the front of the product on the floor.

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 fire 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 -5 degrees. If the -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
AOC U28P2U - Installation - 1

text_image 12 inches 30cm 4 inches 10cm 4 inches 10cm Leave at lease this space around the set 4 inches 10cm

Cleaning

Clean the cabinet regularly with cloth. You can use soft-detergent to wipe out the stain, instead of strong-detergent which will cauterize the product cabinet.

When cleaning, make sure no detergent is leaked into the product. The cleaning cloth should not be too rough as it will scratch the screen surface.

Please disconnect the power cord before cleaning the product.

AOC U28P2U - Cleaning - 1

text_image H₂O No clear solution × Computer

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.

Setup

Contents in Box
AOC U28P2U - Setup - 1

AOC U28P2U - Setup - 2

natural_image Blank white rectangle with a black border and 'ABC' watermark at the bottom (no other text or symbols)

Monitor

AOC U28P2U - Setup - 3

AOC U28P2U - Setup - 4

AOC U28P2U - Setup - 5

AOC U28P2U - Setup - 6

AOC U28P2U - Setup - 7

AOC U28P2U - Setup - 8

AOC U28P2U - Setup - 9

AOC U28P2U - Setup - 10

CD Manual
Warranty Card Stand Base
AOC U28P2U - Setup - 11

AOC U28P2U - Setup - 12

AOC U28P2U - Setup - 13

AOC U28P2U - Setup - 14

AOC U28P2U - Setup - 15

AOC U28P2U - Setup - 16

AOC U28P2U - Setup - 17

AOC U28P2U - Setup - 18
Power Cable HDMI Cable USB Cable DP Cable

* Not all signal cables will be provided for all countries and regions. Please check with the local dealer or AOC branch office for confirmation.

Setup Stand & Base

Please setup or remove the base following the steps as below.

Setup:
AOC U28P2U - Setup Stand & Base - 1

text_image Technical diagram of a mechanical assembly with numbered components and directional arrows indicating motion or movement.

Remove:
AOC U28P2U - Setup Stand & Base - 2

text_image Technical diagram of a mechanical assembly with numbered components, likely a vehicle or machine component.

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:

AOC U28P2U - Adjusting Viewing Angle - 1

text_image -5° 35° 130mm

AOC U28P2U - Adjusting Viewing Angle - 2

NOTE:

Do not touch the LCD screen when you change the angle. It may cause damage or break the LCD screen.

Warning:

  1. To avoid potential screen damage, such as panel peeling, ensure that the monitor does not tilt downward by more than -5 degrees.
  2. Do not press the screen while adjusting the angle of the monitor. Grasp only the bezel.

Connecting the Monitor

Cable Connections In Back of Monitor and Computer:

AOC U28P2U - Connecting the Monitor - 1

text_image AOC 10753 9 6 4218
  1. Power
  2. DP
  3. HDMI-1
  4. HDMI-2
  5. USB-PC(USB upstream)
  6. USB3.2 Gen1
  7. USB3.2 Gen1+charging
  8. Earphone
  9. USB3.2 Gen1
  10. USB3.2 Gen1

Connect to PC

  1. Connect the power cord to the back of the display firmly.
  2. Turn off your computer and unplug its power cable.
  3. Connect the display signal cable to the video connector on the back of 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 off the PC and LCD monitor before connecting.

Wall Mounting

Preparing to Install An Optional Wall Mounting Arm.

AOC U28P2U - Wall Mounting - 1

text_image Technical diagram showing assembly steps of a mechanical device with numbered components and directional arrows indicating process flow.

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 official department of AOC.

AOC U28P2U - Wall Mounting - 2

text_image ≤5° 0°90° >5°

* Display design may differ 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 -5 degrees.
  2. Do not press the screen while adjusting the angle of the monitor. Grasp only the bezel.

Adjusting

Hotkeys
AOC U28P2U - Adjusting - 1

text_image < > 12345
1 Source/Exit
2 Clear Vision/<
3 Volume/>
4 Menu/Enter
5 Power

Power

Press the power key to turn on/off the monitor.

Activate the OSD menu or function adjustment confirmation.

Volume / increase

When the OSD menu is closed, press the “>” key to open the volume adjustment bar, and press the “<” or “>” key to adjust the headphone output volume.

Source switching/exit

When the OSD menu is off, 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)

Clear Vision

  1. When there is no OSD, Press the "<" button to activate Clear Vision.
  2. Use the "<" or "> " buttons to select between weak, medium, strong, or off settings. Default setting is always "off".

AOC U28P2U - Clear Vision - 1

text_image Clear Vision ← Off ►
  1. Press and hold "<" button for 5 seconds to activate the Clear Vision Demo, and a message of "Clear Vision Demo: on" will be displayed on the screen for a duration of 5 seconds. Press Menu or Exit button, the message will disappear. Press and hold "<" button for 5 seconds again, Clear Vision Demo will be off.

AOC U28P2U - Clear Vision - 2

text_image Clear Vision Demo: On

Clear Vision function provides the best image viewing experience by converting low resolution and blurry images into clear and vivid images.

Clear VisionOffAdjust the Clear Vision
Weak
Medium
Strong
Clear Vision Demo On or OffDisable or Enable Demo

OSD Setting

Basic and simple instruction on the control keys.

AOC U28P2U - OSD Setting - 1

text_image Color Setup Picture Boost OSD Setup ExitExtra Contrast 50 Brightness 90 Eco Mode Standard Gamma Gamma1 DCR Off HDR Mode Off PIP Setting PIP Setting Game Setting

1). Press the MENU-button to activate the OSD window.
2). Press< or > to navigate through the functions. Once the desired function is highlighted, press the MENU-button to activate it, press< or > to navigate through the sub-menu functions. Once the desired function is highlighted, press MENU-button to activate it.
3). Press< or > to 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 off 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 off 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.

Luminance
AOC U28P2U - Notes: - 1

text_image Color Setup Picture Boost OSD Setup ExitExtra Contrast 50 Brightness 90 Eco Mode Standard Gamma Gamma↑ DCR Off HDR Mode Off PIP Setting PIP Setting Game Setting
AOC U28P2U - Notes: - 2Contrast 0-100Contrast from Digital-register.
Brightness 0-100Backlight Adjustment
Eco modeStandard StandAOC U28P2U - Notes: - 3 Mode
TextAOC U28P2U - Notes: - 4Text Mode
Internet[SEZY]Internet Mode
Game[AO6V]Game Mode
MovieAOC U28P2U - Notes: - 5Movie Mode
SportsAOC U28P2U - Notes: - 6Sports Mode
ReadingAOC U28P2U - Notes: - 7Reading Mode
Uniformity[WASH]Uniformity Mode
GammaGamma1Adjust to Gamma 1
Gamma2Adjust to Gamma 2
Gamma3Adjust to Gamma 3
DCROffDisable dynamic contrast ratio
OnDCREnable dynamic contrast ratio
HDR ModeOFFAdjust HDR Mode.
HDR Picture
HDR Movie
HDR Game

Note:
When "HDR Mode" is set to a non-off state, "Contrast", "ECO Mode", and "Gamma" items cannot be adjusted.

Color Setup
AOC U28P2U - Notes: - 8

text_image Picture Boost OSD Setup ExitExtra PIP Setting PIP Setting Game Setting Luminance Color Temp. Warm DCB Mode Off Red 50 LowBlue Mode Off Green 50 Blue 50DCB Dem
AOC U28P2U - Notes: - 9Color Temp.Warm Recall WWarm Color TTemperature from EEPROM.
Normal RecallNormal ColorTemperature from EEPROM.
Cool Recall CoolColor Temperaturetemperature from EEPROM.
sRGB Recall SRGB Color TTemperature from EEPROM.
UserRed Red GainGain from Digital-register
GreenGreen Gain Digital-register.
BlueBlue Gain from Digital-register
DCB ModeFull Enhanceon or offDisable or Enable Full Enhance Mode
Nature Skinon or offDisable or Enable Nature Skin Mode
Green Fieldon or offDisable or Enable Green Field Mode
Sky-blueon or offDisable or Enable Sky-blue Mode
Auto Detecton or offDisable or Enable AutoDetect Mode
OFFon or offDisable or Enable DCB Mode
DCB Demoon or offDisable or Enable Demo
Red0-100 Red gain from Digital-register.
Green0-100 Green gain from Digital-register.
Blue0-100 Blue gain from Digital-register.
LowBlue ModeMultimediaDecrease blue light wave by controlling color temperature
Internet
Office
Reading
Off

Note:
When "HDR Mode" under "Brightness" is set to a non-off state, all items under "Color Setup" cannot be adjusted.

Picture Boost
AOC U28P2U - Notes: - 10

text_image PIP OSD Setup ExitExtra PIP Setting Game Setting Luminance Color Setup Bright Frame off Brightness 50 H. Position 0 Frame Size 14 Contrast 50 V. Position 0
AOC U28P2U - Notes: - 11Bright Frame on or off Disable or Enable Bright Frame
Frame Size 14-100 Adjust Frame Size
Brightness 0-100 Adjust Frame Brightness
Contrast 0-100 Adjust Frame Contrast
H. position 0-100 Adjust Frame horizontal Position
V. position 0-100 Adjust Frame vertical Position

Note:

1). For a better viewing experience, adjust the brightness, contrast, and position of the brightening.
2). When the „HDR Mode“ under „Brightness“ is set to a non-off state, all items under „Window Brightening“ cannot be adjusted.

OSD Setup
AOC U28P2U - Note: - 1

text_image PIP PIP Setting Game Setting ExitExtra Luminance Color Setup Picture Boost Language English Timeout 10 DP Capability 1.2 H: Position 50 V: Position 0 Break Reminder Off Transparence 25
AOC U28P2U - Note: - 2Language Select the OSD language
Timeout 5-120 Adjust the OSD Timeout
DP Capability 1.1/1.2If the DP video content supports DP1.2, please select DP1.2 for DP Capability; otherwise, please select DP1.1
H. Position 0-100 Adjust the horizontal position of OSD
V. Position0-100 Adjust the vertical position of OSD
Transparence0-100 Adjust the transparence of OSD
Break Reminderon or off Break reminder if the user continuously work for more than 1hrs

PIP Setting
AOC U28P2U - Note: - 3

text_image PIP Game Setting ExitExtra Luminance Color Setup Picture Boost OSD Setup PIP Off Small Swap Off Size Main Source HDMI1 Position Right-up AudioSub Source OD Off
PIPPIP Setting OFF / PIP /PBP Disable or Enable PIP orPBP.
Main SourceHDMI1、HDMI2、DP、USB-CSelect main screen source.
Sub SourceHDMI1、HDMI2、DP、USB-CSelect sub screen source.
Size Small / Middle / LargeLarge Select screen size.
PositionRight-upSet the screen location.
Right-down
Left-up
Left-down
AudioOn: PIP AudioDisable or Enable Audio Setup.
Off: Main Audio
SwapOn: SwapSwap the screen source.
Off: non action

Game Setting
AOC U28P2U - Note: - 4

text_image Game Mode Off Shadow Control 50 Low Input Lag Off Luminance Color Setup Picture Boost OSD SetupExitExtra PIP Setting Game Color 10 Frame Counter Off Overdrive Off Dial Point Off Adaptive-Sync Off
AOC U28P2U - Note: - 5Game ModeFPSFor playing FPS (first Person Shooters) games. Improves dark theme black level details.
RTSFor playing RTS (Real Time Strategy). Improves the image quality.
RacingFor playing Racing games, Provides fastest response time and high color saturation.
Gamer 1 User's preference settings saved as Gamer 1.
Gamer 2 User's preference settings saved as Gamer 2.
Gamer 3 User's preference settings saved as Gamer 3.
off No optimization by Smart image game
Shadow Control 0-100Shadow Control Default is 50, then end-user can adjust from 50 to 100 or 0 to increase contrast for clear picture. 1. If picture is too dark to be saw the detail clearly, adjusting from 50 to 100 for clear picture. 2. If picture is too white to be saw the detail clearly, adjusting from 50 to 0 for clear picture
Low Input Lag On/Off Turn off frame buffer to decrease input lag
Game Color 0-20Game Color will provide 0-20 level for adjusting saturation to get better picture.
OverdriveWeakAdjust the response time.
Medium
Strong
Off
Adaptive-SyncOn/Off Adjust the Adaptive-Sync.
Frame CounterOff / Right-up / Right-Down / Left-Down / Left-UpDisplay V frequency on the corner selected
Dial PointOn/OffThe "Dial Point" function places an aiming indicator in the center of screen for helping gamers to play First Person Shooter (FPS) games with an accurate and precise aiming.

Note:
When the "HDR Mode" under "Brightness" is set to a non-off state, the "Game Mode", "Shadow Control、Game Color" items under "Game Setting" cannot be adjusted.

Extra
AOC U28P2U - Note: - 6

text_image Input Select Auto Off Timer 00 Image Ratio Wide Luminance Color Setup DDC/CI Yes Reset No Picture Boost OSD SetupExit PIP Setting PIP Setting Game Setting Resolution : 3840(H)X2160(V) H. Frequency : 135KHz V. Frequency : 60Hz
AOC U28P2U - Note: - 7Input Select Select Input Signal Source
Off timer 0-24hrs Select DC off time
Image RatioWideSelect image ratio for display.
4:3
1:1
Movie1
Movie2
DDC/CI yes or no Turn ON/OFF DDC/CI Support
Reset ENERGY STAR ^® or NoReset the menu to default(ENERGY STAR ^® available for selective models)

Exit
AOC U28P2U - Note: - 8

text_image Luminance Color Setup Picture Boost OSD Setup PIP PIP Setting Game Setting Extra
AOC U28P2U - Note: - 9Exit Exit the main OSD

LED Indicator

Status LED Color
Full Power Mode White
Active-off Mode Orange

Troubleshoot

Problem & QuestionPossible Solutions
Power LED Is Not ONMake sure the power button is ON and the Power Cord is properly connected to a grounded power outlet and to the monitor.
No images on the screen• Is the power cord connected properly?Check the power cord connection and power supply.• Is the cable connected correctly?(Connected using the VGA cable)Check the VGA cable connection.(Connected using the HDMI cable)Check the HDMI cable connection.(Connected using the DP cable)Check the DP cable connection.* VGA/HDMI/DP input is not available on every model.• If the power is on, reboot the computer to see the initial screen (the login screen), which can be seen.If the initial screen (the login screen) appears, boot the computer in the applicable mode (the safe mode for Windows 7/8/10) and then change the frequency of the video card.(Refer to the Setting the Optimal Resolution)If the initial screen (the login screen) does not appear, contact the Service Center or your dealer.• Can you see “Input Not Supported” on the screen?You can see this message when the signal from the video card exceeds the maximum resolution and frequency that the monitor can handle properly.Adjust the maximum resolution and frequency that the monitor can handle properly.• Make sure the AOC Monitor Drivers are installed.
Picture Is Fuzzy & Has Ghosting Shadowing ProblemAdjust the Contrast and Brightness Controls.Press to auto adjust.Make sure you are not using an extension cable or switch box. We recommend plugging the monitor directly to the video card output connector on the back.
Picture Bounces, Flickers Or Wave Pattern Appears In The PictureMove electrical devices that may cause electrical interference as far away from the monitor as possible.Use the maximum refresh rate your monitor is capable of at the resolution you are using.
Monitor Is Stuck In Active Off-Mode”The Computer Power Switch should be in the ON position.The Computer Video Card should be snugly fitted in its slot.Make sure the monitor’s video cable is properly connected to the computer.Inspect the monitor’s video cable and make sure no pin is bent.Make sure your computer is operational by hitting the CAPS LOCK key on the keyboard while observing the CAPS LOCK LED. The LED should either turn ON or OFF after hitting the CAPS LOCK key.
Missing one of the primary colors (RED, GREEN, or BLUE)Inspect the monitor’s video cable and make sure that no pin is damaged.Make sure the monitor’s video cable is properly connected to the computer.
Screen image is not centered or sized properlyAdjust H-Position and V-Position or press hot-key (AUTO).
Picture has color defects (white does not look white)Adjust RGB color or select desired color temperature.
Horizontal or vertical disturbances on the screenUse Windows 7/8/10 shut-down mode to adjust CLOCK and FOCUS.Press to auto-adjust.
Regulation & ServicePlease refer to Regulation & Service Information which is in the CD manual or www.aoc.com (to find the model you purchase in your country and to find Regulation & Service Information in Support page.

Specification

General Specification

PanelModel name U28P2U
Driving system TFT Color LCD
Viewable Image Size 70.9 cm diagonal
Pixel pitch 0.16mm(H) x 0.16mm(V)
OthersHorizontal scan range 30k-140kHz
Horizontal scan Size(Maximum) 620.93mm
Vertical scan range 23-75Hz
Vertical Scan Size(Maximum) 341.28mm
Optimal preset resolution 3840x2160@60Hz
Max resolution 3840x2160@60Hz
Plug & Play VESA DDC2B/CI
Power Source 100-240V~, 50/60Hz, 1.5A
Power ConsumptionTypical(Brightness = 90,Contrast = 50) 45W
Max. (brightness = 100, contrast =100)≤ 80W
Standby mode≤ 0.3W
Physical CharacteristicsConnector Type HDMI×2、DP、USB3.2 Gen1x4、USB upstream、Earphone
Signal Cable TypeDetachable
EnvironmentalTemperatureOperating0°~ 40°
Non-Operating-25°~ 55°
HumidityOperating10% ~ 85% (non-condensing)
Non-Operating5% ~ 93% (non-condensing)
AltitudeOperating0~ 5000 m (0~ 16404ft )
Non-Operating0~ 12192m (0~ 40000ft )

Preset Display Modes

STANDARD RESOLUTIONHORIZONTAL FREQUENCY(kHz)VERTICAL FREQUENCY(Hz)
VGA 640x480@60Hz 31.469 59.94
VGA 640x480@67Hz 35 66.667
VGA 640x480@72Hz 37.861 72.809
VGA 640x480@75Hz 37.5 75
DOS MODE 720x400@70Hz 31.469 70.087
SVGA 800x600@56Hz 35.156 56.25
SVGA 800x600@60Hz 37.879 60.317
SVGA 800x600@72Hz 48.077 72.188
SVGA 800x600@75Hz 46.875 75
MAC MODE 832x624@75Hz 49.725 74.551
XGA 1024x768@60Hz 48.363 60.004
XGA 1024x768@70Hz 56.476 70.069
XGA 1024x768@75Hz 60.023 75.029
HD 1280x960@60Hz 6060
HD 1280x720@60Hz 44.772 59.885
SXGA1280x1024@60Hz63.981 60.02
SXGA1280x1024@75Hz79.976 75.025
WXGA+1440x900@60Hz 55.93559.887
WSXGA 1680x1050@60Hz 64.674 59.954
FHD1920x1080@60Hz 67.560
***1920x2160@60Hz133.29359.988
QHD2560x1440@60Hz88.78659.9
UHD3840x2160@30Hz 67.530
UHD3840x2160@60Hz133.32 60

Pin Assignments

AOC U28P2U - Pin Assignments - 1

text_image 19 17 1 18 2

19-Pin Color Display Signal Cable

Pin No.Signal Name Pin No. SignalNamePin No. Signal Name
1. TMDSData 2+ 9. TMDS Data 0- 17. DDC/CEC Ground
2. TMDSData 2 Shield 10. TMDS Clock + 18. +5V Power
3. TMDSData 2- 11. TMDS Clock Sh ield 19. Hot Plug Detect
4. TMDSData 1+ 12. TMDS Clock-
5. TMDSData 1Shield 13. CEC
6. TMDSData 1- 14. Reserved (N.C. on device)
7. TMDSData 0+ 15. SCL
8. TMDSData 0 Shield 16. SDA

AOC U28P2U - Pin Assignments - 2

text_image 10 17 15 12 11 0 7 5 3 1 20 18 16 14 12 10 8 6 4 2

20-Pin Color Display Signal Cable

Pin No. Signal Name Pin No. Signal Name
1 ML_Lane 3 (n) 11 GND
2 GND12 ML_Lane 0 (p)
3 ML_Lane 3 (p)13 CONFIG1
4 ML_Lane 2 (n)14 CONFIG2
5 GND15 AUX_CH(p)
6 ML_Lane 2 (p)16 GND
7 ML_Lane 1 (n)17 AUX_CH(n)
8 GND18 Hot Plug Detect
9 ML_Lane 1 (p)19 Return DP_PWR
10ML_Lane 0 (n)20DP_PWR

Plug and Play

Plug & Play DDC2B Feature

This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.

The DDC2B is a bi-directional data channel based on the I2C protocol. The host can request EDID information over the DDC2B channel.

Manual assistant
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Product information

Brand : AOC

Model : U28P2U

Category : Screen