1. Introduction
Thank you for choosing the INNOCN 27D1U 27-inch 4K IPS Monitor. This monitor is designed to provide a high-quality visual experience with its 4K UHD resolution, IPS panel, and advanced color features. This manual will guide you through the setup, operation, and maintenance of your new monitor to ensure optimal performance and longevity.

2. Package Contents
Please check the package contents carefully. If any items are missing or damaged, please contact your retailer.
- INNOCN 27D1U Monitor
- Monitor Stand (Base and Neck)
- Power Cable
- HDMI Cable
- USB-C Cable
- User Manual (this document)
3. Setup Instructions
3.1 Assembling the Stand
- Carefully remove the monitor and stand components from the packaging.
- Attach the stand neck to the monitor panel. Ensure it clicks securely into place.
- Attach the stand base to the stand neck. Tighten any screws if provided, usually located at the bottom of the base.
- Place the assembled monitor on a stable, flat surface.
3.2 Connecting to a Power Source
- Connect the power cable to the ACIN port on the back of the monitor.
- Plug the other end of the power cable into a grounded electrical outlet.
3.3 Connecting to a Computer/Device
The monitor supports multiple input options:
- HDMI: Connect an HDMI cable from your computer's HDMI output to the HDMI 2.0 port on the monitor.
- DisplayPort: Connect a DisplayPort cable from your computer's DisplayPort output to the DP 1.4 port on the monitor.
- USB Type-C: Connect a USB-C cable from your computer's USB-C port to the Type-C (65W) port on the monitor. This connection supports video, audio, data transmission, and 65W power delivery to your connected device.
Ensure all cables are securely connected.

3.4 Wall Mounting (Optional)
The monitor supports VESA wall mounting with a 100x100mm adapter. Wall-mounted accessories need to be purchased separately. A mechanical arm or bracket must be prepared for installation.
4. Operating Instructions
4.1 Powering On/Off
Press the power button, usually located on the bottom right side of the monitor, to turn the monitor on or off. The power indicator light will illuminate when the monitor is on.
4.2 On-Screen Display (OSD) Menu
Use the buttons on the monitor (typically located on the bottom right or rear) to navigate and adjust settings in the OSD menu. Common settings include:
- Brightness/Contrast: Adjust the display's luminance.
- Color Settings: Fine-tune color temperature, gamma, and color space.
- Input Source: Manually select between HDMI, DisplayPort, or Type-C inputs.
- Picture Mode: Select preset display modes (e.g., Standard, Game, Movie, sRGB, M.BOOK).
- Audio: Adjust volume for the built-in speakers or connected headphones.
4.3 Ergonomic Adjustments
The monitor features a versatile stand for optimal viewing comfort:
- Swivel: Rotate the monitor left or right up to ±45°.
- Tilt: Adjust the screen angle from -5° (forward) to +20° (backward).
- Pivot: Rotate the screen 90° for portrait mode viewing (±90°).
- Height Adjustment: Raise or lower the monitor by up to 120mm (approximately 5 inches).

4.4 Special Features
- 4K Ultra-High-Definition Resolution: Enjoy clear and distinct picture details on the 27-inch screen.
- M.BOOK Mode: This mode is optimized to match Mac colors, reducing color differences and enhancing work efficiency for Mac users.
- HDR400 High Dynamic Range: Meets the HDR400 standard, providing an immersive audio-visual entertainment experience with enhanced contrast and color.
- Type-C 65W Reverse Power Supply: The USB-C port provides power supply, audio, video, and data transmission all in one step, allowing you to charge compatible devices like laptops or smartphones directly from the monitor.
- Low Blue Light Control + DC Dimming: Features designed to reduce blue light stimulation and flicker, protecting your eyes during long periods of work.
- Factory Calibration: The monitor is precisely calibrated at the factory with a color accuracy of ΔE < 2, and a color calibration report is provided for peace of mind.


5. Maintenance
5.1 Cleaning the Screen
To clean the screen, gently wipe it with a soft, lint-free cloth. If necessary, use a screen-specific cleaning solution applied to the cloth, not directly to the screen. Avoid using abrasive cleaners, alcohol, or ammonia-based solutions.
5.2 Cleaning the Casing
Wipe the monitor casing with a soft, dry cloth. Do not use liquid cleaners directly on the casing.
5.3 Storage
When storing the monitor for an extended period, ensure it is powered off and disconnected from the power source. Store it in a cool, dry place, preferably in its original packaging to protect it from dust and physical damage.
6. Troubleshooting
6.1 No Power
- Ensure the power cable is securely connected to both the monitor and the electrical outlet.
- Check if the power outlet is functioning correctly by plugging in another device.
- Verify the monitor's power button is pressed.
6.2 No Signal
- Check that the video cable (HDMI, DisplayPort, or USB-C) is securely connected to both the monitor and your computer.
- Ensure the correct input source is selected in the monitor's OSD menu.
- Try a different video cable or port on your computer/monitor to rule out faulty connections.
- Verify your computer's display settings are configured to output to the external monitor.
6.3 Image Issues (Flickering, Distorted, Incorrect Colors)
- Adjust the resolution and refresh rate settings on your computer to match the monitor's native resolution (3840x2160) and refresh rate (60Hz).
- Reset the monitor's display settings to factory defaults via the OSD menu.
- Ensure the video cable is not damaged.
- If using a long cable, try a shorter, higher-quality cable.
6.4 No Sound from Speakers/Audio Out
- Check the volume settings in the monitor's OSD menu and on your computer.
- Ensure the audio output device on your computer is set to the monitor.
- If using HDMI or DisplayPort, ensure your graphics card is configured to send audio through the cable.
- If using the Audio Out port, ensure your headphones or external speakers are properly connected and functioning.
7. Specifications
| Feature | Specification |
|---|---|
| Model | 27D1U |
| Panel Size | 27 inches |
| Aspect Ratio | 16:9 |
| Panel Type | IPS |
| Resolution | 3840x2160 (4K UHD) |
| Refresh Rate | 60Hz (Max) |
| Contrast Ratio (Typ.) | 1000:1 |
| Brightness | 300cd/m² (Typ), 400cd/m² (HDR) |
| Response Time (Black and White) | 14 ms |
| Color Number | 1.07 Billion (8bit+FRC) |
| High-Dynamic Range | HDR400 |
| Viewing Angle | 178° (Horizontal) / 178° (Vertical) |
| I/O Ports | 1x HDMI 2.0 (Max 60Hz), 1x DP 1.4 (Max 60Hz), 1x Type-C (Max 60Hz, 65W Power Delivery), Audio output |
| Audio Feature | Built-in Speaker |
| Bracket Type | Swivel Lift Bracket (Rotating and elevating) |
| Wall Mounting Support | VESA 100x100mm (adapter sold separately) |
| Net Weight (with stand) | 6.4 kg (14.11 lbs) |
| Net Weight (without stand) | 4.1 kg (9.04 lbs) |
| Gross Weight | 8.8 kg (19.40 lbs) |
| Package Dimensions | 692 x 454 x 176mm |

8. User Tips
- For Creative Professionals: Utilize the M.BOOK mode for accurate color matching with Mac devices and take advantage of the factory-calibrated ΔE < 2 color accuracy for critical design and photo editing tasks.
- Optimizing Connectivity: For laptops with USB-C, use a single USB-C cable to handle video, audio, data, and power delivery (up to 65W) for a cleaner workspace.
- Ergonomic Comfort: Experiment with the monitor's swivel, tilt, pivot, and height adjustments to find the most comfortable viewing position for your setup and reduce strain during long work sessions.
- Eye Care: Enable the low blue light control and DC dimming features through the OSD menu to minimize eye fatigue, especially when working for extended periods.
9. Warranty and Support
9.1 Warranty Information
This product comes with a warranty that covers manufacturing defects. If you are not satisfied with your item, you may return it within 14 days for a replacement or money back. Please contact the seller before returning any items.
- If the item is defective within 3 months of purchase, a replacement will be sent without extra charge, or a refund will be issued after the defective item is received.
- If the item is defective after 3 months, you can still send it back for a new one, but you will be responsible for the extra shipping fee.
9.2 Customer Support
For technical assistance, warranty claims, or any other inquiries, please contact the seller or manufacturer's customer support. Refer to your purchase documentation for specific contact details.