Display Issue with Portable External Monitor

It can be truly frustrating when you encounter many display problems while using a portable monitor. We've answered some frequently asked questions to ensure that when common display problems arise, we can pinpoint the issue and resolve it effectively.

How to use extended mode?

• On WIN computers, you can select extended mode via the "WIN+P" shortcut key or select extended mode in the display settings - multiple monitor settings.
• Macbook can be selected in preferences. After selecting, drag the selected content all the way to the right until all content is displayed on the screen.

Why does a 4K resolution monitor only display 1080P resolution? Or check the menu to see if the resolution is 3840x2160 30Hz?

To achieve 4K resolution, the following conditions must be met:

1. First, the device supports 4K, and when connected to a computer, the graphics card must support 4K.
2. Second, signal transmission lines such as HDMI cables (2.0) and TYPE-C cables are 3.1 and support 4K.
3. Third, the display itself is 4K.

Why can't the refresh rate reach 144Hz/120Hz/100Hz?

• Check system compatibility: Ensure your device (laptop, game console, etc.) supports 2K resolution and has the necessary ports to connect a monitor. Computers with integrated graphics cards on the market can achieve 2K 60Hz/100Hz. If you want to achieve 2K 120Hz or more, you generally need a computer with a dedicated graphics card. The maximum HDMI interface connection supports 2560x1440 144Hz, 2560x1600 120Hz, TYPE-C interface can support 2560x1600 144Hz.
• Use the correct cables: Use high-quality cables such as DisplayPort or HDMI 2.0 to connect your monitor to your device, ensuring proper transmission of high-resolution, high-refresh-rate signals. The monitor's supporting cables can all meet the requirements of the highest performance, and customers cannot replace the cables at will.
• Adjust display settings: Some devices are not automatically detected. For example, 2K 144 Hz Gaming Monitor. To get the smoothest possible image, you need to set the screen resolution to 2K (2560 x 1600) and the refresh rate to 144 Hz in the settings.
• Enable Adaptive Sync (if available): If your monitor and device support technologies like AMD FreeSync, enable them to reduce screen tearing and improve gaming performance. FreeSync generally supports 60Hz or more. If you select 30Hz after partially turning it on, abnormal display or no display will occur.
• Keep drivers up to date: Install the latest graphics drivers for your device to ensure compatibility and optimal performance with 2K 144Hz monitors;
• Ensure sufficient power supply: Some portable monitors may require external power for optimal performance. Make sure the monitor is plugged into an outlet or has sufficient battery power.

Why can't the brightness be saved after adjusting it, then powering off and reconnecting?

• After adjusting the menu, you did not press the confirm button to confirm.
• Regardless of whether HDMI or TYPE-C is used for signal transmission, the monitor's PD interface must be connected to a power source when adjusting the menu.
• If the monitor has a power saving mode submenu, you need to enter the menu to turn off the power saving mode.
• MacBooks sometimes have low brightness due to automatic HDR activation. Try turning HDR off on the laptop and then turning it back on.

Why don't the monitor's colors match the host computer's monitor?

The color gamut, color temperature, brightness, and contrast of the display screen used by each monitor are different; there is no comparison. Generally, it has been set to the optimal state when leaving the factory. Customers can adjust it according to their own usage environment and preferences. Adjust brightness and color temperature.

Why is only 80% measured from 100% color gamut?

• First, check whether the specified standards are consistent. For example, they are all expressed according to the sRGB standard or according to the NTSC standard.
• Professional instruments and equipment must be used for testing, such as red and blue spider testers with slightly lower accuracy, and color analysis and synthesis equipment with higher accuracy. The deviation of the test results is about 3%, which is normal. If the customer uses the test color directly, the test value of the software test may not be accurate.
• During testing, the display generally needs to be warmed up for more than an hour, then the display needs to be reset, and the brightness needs to be adjusted to the highest level to avoid direct light exposure to the display.

What do HDR\Freesync\DCR\OD do?

• HDR, High-Dynamic Range (HDR), mainly adjusts brightness and contrast without affecting delay. Generally, there are three options in the display menu: Auto, OFF, and 2084: (1) Auto means that as long as your device output supports HDR and the automatic mode is set at the same time, the automatic mode set by our monitor will automatically turn on when you play games; the audio and video output settings of the PS4/PS5 game console are set, select Auto for HDR. The effect is only effective when the game supports HDR. In general, the monitor can select Auto mode; (2) OFF means that the HDR function is turned off and will not be turned on automatically; (3) 2084 is always on, which means that HDR is turned on regardless of the situation. The brightness in this mode is very bright and the color is slightly distorted.
• Simply put, the Freesync function is to dynamically adjust the monitor's refresh rate to solve the problem of screen tearing and freezing.
• The simple understanding of the OD function is the same as CPU overclocking. It reduces the display delay by increasing the driving voltage. In this case, the display effect is reduced.
• DCR stands for Dynamic Contrast Ratio: Intelligent dynamic high-contrast technology automatically detects the brightness and darkness of the input signal through intelligent processing ICs, dynamically adjusting the backlight module. This not only significantly improves the display contrast value, but also makes the gray levels finer, effectively solving the problem of light leakage in the darkroom of the LCD panel. In addition, it automatically adjusts the brightness contrast according to different video characteristics, saving energy, protecting the environment, and improving visual comfort, providing users with sharper and clearer visual images. This ensures that the image quality is finer when consumers use image files.
• Eco mode is an intelligent power saving mode, meaning entering power saving mode. There are several reasons why a computer monitor enters power saving mode: the host is shut down, the system is in standby mode, the system enters hibernation, or the graphics card has no video output. The monitor will automatically shut down if there is no signal input for a long time.
• Scenario mode. The monitor menu also introduces some scene modes, such as movies, games, text/reading, FPS, RTS, etc., which mainly preset RGB color, brightness, contrast, and other parameters for different scenes to achieve quick switching effects. In scene mode, brightness is locked and cannot be used simultaneously with HDR.

Why does the image turn gray after the HDR monitor is turned on?

To realize the HDR function, both the monitor and the computer need to enable the HDR function. If only the monitor or the computer enables HDR, the monitor's colors will be distorted, usually turning gray.

Why does my monitor have black borders or the display is vertically stretched after connecting?

• In this case, it is normal for the customer to connect monitors with different aspect ratios to the device, e.g., a 16:10 monitor to a 16:9 laptop/game console.
• There is an input source with a fixed aspect ratio of 16:9 (such as a game console like Switch), and the output is on a 16:10 monitor [with automatic aspect ratio detection function]. In terms of optimizing the monitor with a 16:10 aspect ratio, there will be black borders at the top and bottom (10-9=1), and most game consoles are 16:9; if you don't want black borders, you can manually adjust the aspect ratio to 16:10 to fill the screen, but the game screen (input source) will be stretched vertically (9 to 10), an unoptimized 16:10 monitor will directly force the stretch.

• If connected to a laptop in extended mode, and the input source is 16:9, black borders will appear, for example, when playing videos (the video source has a fixed aspect ratio); there will be no scaling when displaying the document directly. This is caused by the computer automatically detecting the resolution, because the resolutions of the secondary monitor and the primary monitor do not conflict in extended mode.

External audio plays fine, but when headphones are connected, there is no sound or only one-sided sound?

The structure of the ear holes is a splitter design, and the earphones will wear out more or less during use. Sometimes a thin layer of oxide will form on the surface, which sometimes causes poor contact after being inserted into the ear holes. You can twist the splitter of the ear holes a few times to ensure full contact with the ear hole.

What causes monitor noise?

• There is a problem with the audio source itself. Try playing a lossless audio source to test.
• The HDMI cable has poor contact or is faulty. Replace the cable and test it.
• Insufficient power supply, test external power supply.
• The slight magnetic field noise caused by the speaker's own operation cannot be avoided.
• The speaker itself is damaged.

Why is the monitor's refresh rate advertised as 144Hz, but the menu displays 60Hz?

The monitor's maximum refresh rate is 144Hz and must be supported by your device (a computer with a supported independent graphics card). Generally, when connecting to a computer, you need to set the screen refresh rate to 144Hz before it will be displayed as 144Hz in the menu.

Wi-Fi not working after connecting monitor to Macbook Pro

This is an electric shock caused by reverse charging after both the computer and the monitor are powered. The laptop does not need to be connected to the power supply.

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