AOC 24E4CV Monitor User Manual

Safety

This section outlines national regulations, power supply, installation, cleaning, and other safety considerations.

National Regulations

The following subsections describe the national regulations used in this document.

Notes, Precautions, and Warnings

Text blocks in this manual may be accompanied by an icon and be printed in bold or italics. These blocks represent notes, precautions, and warnings, used as follows:

• NOTE: Indicates important information to help you use your computer system better.
• CAUTION: Indicates potential damage to hardware or data loss and explains how to avoid the problem.
• WARNING: Indicates the risk of personal injury and explains how to avoid the problem. Some warnings may appear in alternative formats without an icon, as prescribed by the relevant regulatory authority.

Power Supply

WARNING: The monitor should only be connected to a power source of the type indicated on the label. If you are unsure about the type of power supply in your household, contact your dealer or local power company.

The monitor is equipped with a three-pin grounded plug, a plug with a third (grounding) pin. This plug only fits into a grounded outlet for safety reasons. If your outlet does not accept the three-pin plug, have a qualified electrician install the correct outlet or use an adapter to ground the unit safely. Do not alter the grounding pin's safety feature.

WARNING: Unplug the unit during thunderstorms or when it is not used for extended periods. This protects the monitor from damage due to power surges.

WARNING: Do not overload multiple outlets or extension cords. Overloading can cause fire or electric shock.

For proper operation, use the monitor only with UL-certified computers that have appropriately configured outlets with a voltage of 100-240 V AC, at least 5 A.

The wall outlet must be installed near the unit and be easily accessible.

Installation

WARNING: Do not place the monitor on an unstable cart, stand, tripod, bracket, or table. If the monitor falls, it can cause personal injury and serious damage to this product. Only use a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with this product. Follow the manufacturer's instructions. Follow the installation instructions for the product and use the mounting accessories recommended by the manufacturer. A combination of product and cart should be moved with caution.

WARNING: Never insert objects into the slot on the monitor housing. This can damage components and cause fire or electric shock. Never spill liquids on the monitor.

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

If you are mounting the monitor on a wall or shelf, use a manufacturer-approved mounting kit and follow the kit's instructions.

Ensure sufficient space around the monitor as illustrated below. Otherwise, insufficient air circulation may cause overheating, fire, or damage to the monitor.

To avoid possible damage, such as panel detachment from the frame, ensure the monitor is not tilted downwards by more than -5 degrees. If the maximum tilt angle of -5 degrees downwards is exceeded, damage to the monitor is not covered by the warranty.

Recommended ventilation areas around the monitor when mounted on a wall or stand:

With Stand Installed:

• 30cm clearance above
• 10cm clearance on sides
• 10cm clearance below

Cleaning

WARNING: Clean the housing regularly with a soft, damp cloth.

Use a soft cotton or microfiber cloth for cleaning. The cloth should be damp and almost dry; avoid liquid penetrating the housing.

WARNING: Please disconnect the power cord from the product before cleaning.

Miscellaneous

WARNING: If the product emits an unusual odor, noise, or smoke, unplug the power cord IMMEDIATELY and contact a service center.

Ensure that the ventilation openings are not blocked by a table or curtain.

Do not expose the LCD monitor to strong vibrations or shocks during operation.

Avoid impacts or dropping the monitor during operation or transport.

Power cords must be safety tested. For Germany, it must be H03VV-F, 3G, 0.75 mm² or better. For other countries, use appropriately suitable types.

Excessive sound pressure from earphones and headphones can cause hearing loss. Adjusting the equalizer to maximum increases the output voltage of earphones and headphones, thus increasing the sound pressure level.

Setup

This section details the contents of the package and the assembly process.

Package Contents

The package typically includes:

• Monitor
• Quick Start Guide
• Warranty Card
• Stand
• Base
• Power Cable
• HDMI Cable
• DisplayPort Cable
• USB-C Cable

Note: Not all signal cables are provided in all countries and regions. Please check with your local dealer or AOC subsidiary for confirmation.

Stand and Base Assembly

Follow the steps to assemble or remove the base.

Assembly:

1. Attach the stand to the base.
2. Secure with the base screw.

Removal:

1. Loosen the base screw.
2. Remove the stand from the base.

Base Screw Specification: M6*13 mm (effective thread 5.5 mm)

NOTE: The design of the display may differ from the illustrations.

Adjusting Viewing Angle

For the best viewing experience, it is recommended that the user ensures their entire face is visible on the screen, and then adjusts the monitor's angle to personal preference. Hold the stand firmly so the monitor does not tip over when adjusting the angle.

You can adjust the monitor as follows:

• Tilt: -5° to 30°
• Swivel: 175° left and right
• Height Adjustment: 150mm
• Rotation: 90°

NOTE: Do not touch the LCD screen when adjusting the angle. Touching the LCD screen can cause damage.

WARNING: To avoid possible damage, such as panel detachment, ensure the monitor is not tilted downwards by more than -5 degrees. If the maximum tilt angle of -5 degrees downwards is exceeded, damage to the monitor is not covered by the warranty.

Do not press on the screen while adjusting the monitor's tilt angle. Grasp only the frame.

Connecting the Monitors

Cable connections on the back of the monitor and computer:

Connections:

1. Power
2. HDMI
3. DisplayPort Input
4. USB-C
5. DisplayPort Output
6. RJ45
7. Headphone Jack
8. USB 3.2 Gen1
9. USB 3.2 Gen1
10. USB 3.2 Gen1
11. USB 3.2 Gen1 Downstream + Charging

Connecting to PC:

1. Connect the power cord firmly to the back of the display.
2. Turn off your computer and unplug the power cord.
3. Connect the video signal cable to the video port on the back of your computer.
4. Connect your computer's and display's power cords to a nearby outlet.
5. Turn on your computer and the display.

If your monitor displays an image, the installation is complete. If no image is displayed, consult the troubleshooting section.

To protect the equipment, always turn off the PC and the LCD monitor before making connections.

Wall Mounting

Preparation for installing an optional wall mount arm. The monitor can be attached to a separately available wall mount arm. Disconnect the power supply before this procedure. Follow these steps:

1. Remove the base.
2. Follow the manufacturer's instructions for mounting the wall mount arm.
3. Position the wall mount arm on the back of the monitor. Align the arm's holes with the holes on the back of the monitor.
4. Insert the four screws into the holes and tighten them securely.
5. Reconnect the cables. Refer to the optional wall mount arm's user manual for instructions on wall mounting.

Wall Mount Screw Specification: M4*(10+X) mm, (X = thickness of the wall mount)

Note: VESA mounting holes are not available on all models. Please inquire with your dealer or the official AOC department. For wall mounting, always contact the manufacturer.

WARNING: To avoid possible damage, such as panel detachment, ensure the monitor is not tilted downwards by more than -5 degrees. Do not press on the screen while adjusting the monitor's tilt angle. Grasp only the frame.

Adaptive-Sync Function

The Adaptive-Sync function works with DisplayPort/HDMI.

Compatible Graphics Cards: The recommended list is as follows and can also be viewed at www.AMD.com.

• Radeon™ RX Vega Series
• Radeon™ RX 500 Series
• Radeon™ RX 400 Series
• Radeon™ R9/R7 300 Series (excluding R9 370/X, R7 370/X, R7 265)
• Radeon™ Pro Duo (2016)
• Radeon™ R9 Nano Series
• Radeon™ R9 Fury Series
• Radeon™ R9/R7 200 Series (excluding R9 270/X, R9 280/X)

Processors:

• AMD Ryzen™ 7 2700U
• AMD Ryzen™ 5 2500U
• AMD Ryzen™ 5 2400G
• AMD Ryzen™ 3 2300U
• AMD Ryzen™ 3 2200G
• AMD PRO A12-9800
• AMD PRO A12-9800E
• AMD PRO A10-9700
• AMD PRO A10-9700E
• AMD PRO A8-9600
• AMD PRO A6-9500
• AMD PRO A6-9500E
• AMD PRO A12-8870
• AMD PRO A12-8870E
• AMD PRO A10-8770
• AMD PRO A10-8770E
• AMD PRO A10-8750B
• AMD PRO A8-8650B
• AMD PRO A6-8570
• AMD PRO A6-8570E
• AMD PRO A4-8350B
• AMD A10-7890K
• AMD A10-7870K
• AMD A10-7850K
• AMD A10-7800
• AMD A10-7700K
• AMD A8-7670K
• AMD A8-7650K
• AMD A8-7600
• AMD A6-7400K

Adjustment

This section provides a guide to the control buttons and OSD settings.

Quick Buttons

The monitor features several quick buttons for easy access to functions:

• 1. Source/Exit: Selects the input source or exits the OSD menu.
• 2. Preset Mode/V: Opens the Preset Mode menu or adjusts settings downwards.
• 3. Brightness/^: Adjusts brightness upwards.
• 4. Menu/Confirm: Displays the OSD or confirms a selection.
• 5. Power: Turns the monitor on or off.

Menu/Confirm

Press to display the OSD or confirm a selection.

Power

Press the power button to turn on the monitor.

Preset Mode/V

If no OSD is displayed, press the 'V' button to open the Preset Mode function, then press the 'V' or '^' button to select the preset mode.

Brightness/^

If no OSD is displayed, press the '^' button to open the brightness function, then press the 'V' or '^' button to adjust the brightness.

Source/Exit

When the OSD is closed, pressing the Source/Exit button acts as a shortcut for the source selection.

When the OSD menu is active, this button serves as the cancel button (to exit the OSD menu).

Daisy-Chain

This monitor supports the Daisy-Chain function via DisplayPort.

DP IN

DP OUT

USB C

OSD Settings

Basic and easy guide to the control buttons.

Navigating the OSD:

1. Press the MENU button to activate the OSD window.
2. Press V or ^ to navigate through the functions. Once the desired function is highlighted, press the MENU/OK button to activate it. Then press V or ^ to navigate through the submenu functions. Once the desired submenu function is highlighted, press the MENU/OK button to activate it.
3. Press < or > to change the settings of the selected function. Press OK to exit. If you want to adjust another function, repeat steps 2 and 3.
4. OSD Lock Function: To lock the OSD, press and hold the MENU button while the monitor is off, then press the Power button to turn on the monitor. To unlock the OSD, press and hold the MENU button while the monitor is off, then press the Power button to turn on the monitor.

Notes:

• If the product has only one signal input, the "Input Selection" item cannot be adjusted.
• If the input signal resolution matches the native resolution or Adaptive-Sync, the "Aspect Ratio" item is invalid.

Game Settings

This section details various game-specific settings:

• Shadow Control: Adjusts shadow detail from 0 to 20 for clearer images, especially in dark scenes.
• Low Input Lag: Disables the frame buffer to reduce input lag.
• Game Color: Provides 0 to 20 levels for saturation adjustment for a better picture.
• Adaptive-Sync: Enables or disables Adaptive-Sync. Note: Adaptive-Sync may cause flickering in certain game scenarios.
• Dial Point: Places a target indicator in the center of the screen for precise aiming in FPS games.
• Darkness Enhancer: Improves picture details in dark or bright areas, adjusting brightness in bright areas without oversaturation.
• MBR (Motion Blur Reduction): Offers 0 to 20 levels to reduce motion blur. Note: MBR can only be set when Adaptive-Sync is disabled and the refresh rate is ≥ 75 Hz. Screen brightness decreases as the setting value increases.
• MBR Synchronization: Enables or disables motion blur removal. Note: MBR Synchronization can be adjusted when Adaptive-Sync is enabled and the input signal has a variable frequency.
• Overdrive: Adjusts response time. Note: Setting Overdrive to "Stark" may result in a blurry image. Users can adjust or disable the Overdrive level according to their preferences. The "Boost" function is optional and requires Adaptive-Sync to be disabled with a refresh rate of ≥ 75 Hz. Screen brightness decreases when the "Boost" function is activated.

Note: If "Color Space" (Color) under "Picture" is set to sRGB, the "Shadow Control", "Game Color", "MBR", "MBR Sync", "Dark Boost" elements cannot be adjusted. "Overdrive" under "Extreme" is not available.

Preset Mode

The monitor offers various preset modes for different scenarios:

• Standard: Improves readability for web and mobile use.
• Internet: Internet mode.
• Movie: Movie mode.
• Photographer: Photographer mode.
• Eco Mode: Eco mode.
• Reading: Reading mode.
• HDR Effect - Picture, HDR Effect - Film, HDR Effect - Game: Adjust the HDR effect according to your usage needs.
• Sport: Sport mode.
• FPS: For First-Person Shooter games. Improves black level in dark designs.
• RTS: For Real-Time Strategy games. Improves picture quality.
• Racing: For racing games, provides the fastest response time and high color saturation.
• Color Reset: Resets color to factory settings.

Picture

Adjusts various picture settings:

• Brightness: Adjusts backlight. (0-100)
• Contrast: Adjusts contrast via the digital register. (0-100)
• Color Space: Standard panel color space (sRGB).
• Sharpness: Sharpness adjustment. (0-100)
• Gamma: Adjusts gamma. (1.8/2.0/2.2/2.4/2.6)
• Color Temperature: Allows selection of factory settings or custom color temperatures (5000K, 6500K, 7500K, 8200K, 9300K, 11500K).
• Red/Green/Blue: Adjusts color gain. (0-100)
• DCR: Enables or disables Dynamic Contrast Ratio.
• Clear Vision: Applies full-screen sharpness function.
• Aspect Ratio: Selects the display aspect ratio (Full, Aspect Ratio/1:1).

Input

Selects the input signal source:

• Auto Source: Automatically selects the input signal source.
• HDMI
• DisplayPort
• USB-C

Note: It is recommended to keep automatic source detection enabled.

Settings

Configure various monitor settings:

• Language: Select OSD language.
• USB-C: Set priority for USB data transfer or resolution.
• USB Standby Mode: Enable or disable USB standby mode.
• Daisy Chain: Enable or disable Daisy Chain.
• Daisy Chain Sync: Synchronizes or desynchronizes OSD/display signals.
• Smart Power: Enable or disable Smart Power.
• Reminder: Reminds the user after 1 hour of continuous work.
• Timer (Hours): Selects the DC power-off time. (0-24)
• DDC/CI: Enable or disable DDC/CI support.
• Resolution Notification: Enable or disable resolution notification.
• Reset: Resets the menu to factory settings.

Audio

Adjusts audio settings:

• Volume: Adjusts volume. (0-100)
• Mute: Mutes or unmutes the volume.

OSD Settings

Configure OSD settings:

• Transparency: Adjusts OSD transparency. (0-100)
• H. Position: Adjusts the horizontal position of the OSD. (0-100)
• V. Position: Adjusts the vertical position of the OSD. (0-100)
• Time Out: Adjusts the OSD time-out. (5-120)
• Firmware Upgrade: Perform firmware upgrade via USB.

Information

Displays monitor information:

• Input: HDMI
• SN: 000000000
• Resolution: 1920x1080@60Hz
• FW Version: XXXX
• Brightness: 80
• Firmware Date: XXXXX
• Gamma: 2.2
• Sync: HBR2/HBR3

LED Indicator

Status and LED color:

• Full Power Consumption: White
• Active-Off Mode: Orange

Troubleshooting

This section provides solutions for common problems.

Power LED Not Lit

• Ensure the power switch is on and the power cord is properly connected to a grounded outlet and the monitor.
• Check the power cord connection and power supply.

No Image on Screen

• Is the video cable properly connected? (HDMI cable connection) Check the HDMI cable connection. (DisplayPort cable connection) Check the DisplayPort cable connection. Note: HDMI/DisplayPort input may not be available on all models.
• If the power is on, restart the computer to display the login screen.
• If the login screen appears, start the computer in the appropriate mode (Safe Mode for Windows 7/8/10) and then change the graphics card frequency. (See Setting the Optimal Resolution)
• If the login screen does not appear, contact the service center or your dealer.
• Do you see "Input not supported" on the screen? This message appears when the graphics card's signal exceeds the maximum resolution and frequency that the monitor can properly process. Adjust the maximum resolution and frequency accordingly.
• Ensure that the AOC monitor drivers are installed.
• Adjust the contrast and brightness controls.
• Press the AUTO hotkey for automatic adjustment.
• Ensure that no extension cable or switch box is used. We recommend connecting the monitor directly to the output port on the back of the graphics card.
• Move electrical equipment that may cause electrical interference as far away from the monitor as possible.
• Use the maximum refresh rate supported by your monitor at the used resolution.
• The computer's power switch must be in the ON position.
• The computer's graphics card must be firmly and correctly seated in the slot.
• Ensure the monitor's video cable is properly connected to the computer.
• Check the monitor's video cable and ensure no pins are bent.
• Verify your computer is operational by pressing the CAPS LOCK key on the keyboard and observing the CAPS LOCK LED. The LED should turn ON or OFF after pressing the CAPS LOCK key.
• Check the monitor's video cable and ensure no pins are damaged.
• Ensure the monitor's video cable is properly connected to the computer.

Image is blurry or shows ghosting

• Adjust the horizontal and vertical position or press the AUTO hotkey.
• Adjust the RGB colors or select the desired color temperature.
• Use the Windows 7/8/10/11 Safe Mode to adjust CLOCK and FOCUS.
• Press the AUTO hotkey for automatic adjustment.

Image jumps, flickers, or shows a wave pattern

• Please refer to the regulation and service information available in the CD manual or at www.aoc.com (to find the model purchased in your country and view the regulation and service information on the support page).

Monitor is in Active Standby Mode

• The computer's power switch must be in the ON position.
• The computer's graphics card must be firmly and correctly seated in the slot.
• Ensure the monitor's video cable is properly connected to the computer.

Missing one of the primary colors (RED, GREEN, or BLUE)

• Check the monitor's video cable and ensure no pins are bent.
• Verify your computer is operational by pressing the CAPS LOCK key on the keyboard and observing the CAPS LOCK LED. The LED should turn ON or OFF after pressing the CAPS LOCK key.
• Check the monitor's video cable and ensure no pins are damaged.
• Ensure the monitor's video cable is properly connected to the computer.

Image is not centered or not scaled correctly

• Adjust the horizontal and vertical position or press the AUTO hotkey (AUTO).

Image has color errors (White does not appear white)

• Adjust the RGB colors or select the desired color temperature.

Horizontal or vertical distortions on the screen

• Use the Windows 7/8/10/11 download mode to adjust CLOCK and FOCUS.
• Press the AUTO hotkey for automatic adjustment.

Regulations & Service

Please refer to the regulation and service information available in the CD manual or at www.aoc.com (to find the model purchased in your country and view the regulation and service information on the support page).

Specifications

General Specifications:

Panel

• Model Name: 24E4CV
• Drive System: TFT Color LCD
• Visible Screen Size: 60.5 cm Diagonal
• Pixel Pitch: 0.2745 mm (H) x 0.2745 mm (V)
• Display Colors: 16.7 Million Colors
• Horizontal Scan Range: 30-85 kHz (VGA), 30-140 kHz (HDMI/DisplayPort)
• Maximum Horizontal Scan Size: 527.04 mm
• Vertical Scan Range: 48-75 Hz (VGA), 48–120 Hz (HDMI/DisplayPort)
• Maximum Vertical Scan Size: 296.46 mm
• Optimal Preset Resolution: 1920*1080@60Hz (HDMI/DP)
• Maximum Resolution: 1920*1080@120Hz (HDMI/DP)
• Plug & Play: VESA DDC2B/CI
• Power Source: 100-240 V~, 50/60 Hz, 1.5 A

Other

• Power Consumption: Typical (Standard brightness and contrast): 21 W; Max. (Brightness = 100, Contrast = 100): ≤ 150 W; Standby-Mode: ≤ 0.3 W
• Heat Output: Normal operation: 71.67 BTU/h (typ.); Sleep (Standby-Mode): < 1.02 BTU/h; Off-Mode: < 0 BTU/h

Physical Characteristics

• Connection Type: HDMI/DisplayPort Input/USB-C/DisplayPort Output/USB Upstream/Headphone/USB
• Signal Cable Type: Detachable

Environment

• Temperature: Operation: 0 °C to 40 °C; Non-operation: -25 °C to 55 °C
• Humidity: Operation: 10% to 85% (non-condensing); Non-operation: 5% to 93% (non-condensing)
• Altitude: Operation: 0 m to 5000 m (0 ft to 16.404 ft); Non-operation: 0 m to 12.192 m (0 ft to 40.000 ft)

AOC Monitors Panel-Pixel Defect Policy

AOC strives to deliver products of the highest quality. While advanced manufacturing processes and strict quality controls are employed, pixel or subpixel defects on monitor panels are occasionally unavoidable.

No manufacturer can guarantee panels completely free of pixel defects. However, AOC guarantees that any monitor with an unacceptable number of defects will be repaired or replaced under warranty. This policy outlines the different types of pixel defects and defines acceptable defect limits for each type. To qualify for warranty repair or replacement, the number of pixel defects on a monitor panel must exceed these acceptable limits. For example, no more than 0.0004% of a monitor's subpixels may be defective.

Additionally, AOC sets even stricter quality standards for certain types or combinations of pixel defects that are more noticeable than others. This policy applies worldwide.

Pixels and Subpixels

A pixel, or picture element, consists of three subpixels in the primary colors Red, Green, and Blue. Multiple pixels form an image. When all subpixels of a pixel are lit, the three colored subpixels together appear as a single white pixel. If all are dark, the three colored subpixels together appear as a single black pixel. Other combinations of lit and dark subpixels appear as individual pixels in other colors.

Types of Pixel Defects

Pixel and subpixel defects appear on the screen in different ways. There are two categories of pixel defects, and within each category, several types of subpixel defects.

Bright Dot Defects

Bright dot defects appear as pixels or subpixels that are always lit or 'on'. This means a bright dot is a subpixel that is noticeable on the screen when the monitor displays a dark pattern. The following types of bright dot defects are known:

• A lit red, green, or blue subpixel.
• Two adjacent lit subpixels: Red + Blue = Purple, Red + Green = Yellow, Green + Blue = Cyan (Light Blue).
• Three adjacent lit subpixels (a white pixel).

Note: A red or blue bright dot must be more than 50% brighter than adjacent dots, while a green bright dot must be 30% brighter than adjacent dots.

Black Dot Defects

Black dot defects appear as pixels or subpixels that are always dark or 'off'. This means a dark dot is a subpixel that is noticeable on the screen when the monitor displays a bright pattern. These are the types of black dot defects.

Proximity of Pixel Defects

Since pixel and subpixel defects of the same type that are close together can be more noticeable, AOC also sets tolerances for the proximity of pixel defects.

Pixel Defect Tolerances

To qualify for repair or replacement due to pixel defects under warranty, a monitor panel in an AOC Panel Monitor must exhibit pixel or subpixel defects that exceed the tolerances listed in the web manual. The total number of defective subpixels on a monitor panel must not exceed 0.0004%.

Note: * 1 or 2 adjacent subpixel defects = 1 dot defect.

Preset Display Modes

This table lists the preset display modes and their corresponding resolutions and frequencies:

Note: According to the VESA standard, there may be a deviation of +/- 1 Hz in the calculation of the vertical frequency (field frequency) for different operating systems and graphics cards. To improve compatibility, the nominal vertical frequency of this product has been rounded. Please refer to the actual product for exact values.

Pin Assignments

19-pin Color Display Signal Cable

20-pin Color Display Signal Cable

Plug and Play DDC2B Function

This monitor is equipped with VESA DDC2B functionality according to the VESA DDC standard. It allows the monitor to communicate its identity to the host system and, depending on the DDC level used, transmit additional information about its display characteristics.

DDC2B is a bidirectional data channel based on the I2C protocol. The host can request EDID information via the DDC2B channel.

HIGH-DEFINITION MULTIMEDIA INTERFACE