Monitor Touch Screen And Other Problems
Touch function is undoubtedly very important for electronic display devices. When using portable monitors, we often need to use touch screens. We have summarized some common questions about monitor touch screens so that you can quickly find relevant answers when you encounter problems. Additionally, we will address some issues related to interfaces and batteries.
How to connect a monitor with touch function to the computer?
There are two main connection methods:
- A computer with a full-featured TYPE-C interface can be connected directly to the monitor and use the touch function.
- When connecting using HDMI, you need to use a USB-A to USB-C cable to connect the USB interface of the computer to the TYPE-C interface of the monitor. If the output power of the computer's USB interface is too low, an external power supply for the monitor is required. The recommended connection sequence is: connect the HDMI cable first, then connect the USB-A to USB-C touch cable, and finally connect the power supply cable.
Why do I go directly to the main computer screen when I touch on a touch-enabled monitor?
This issue is due to the incorrect mode. You need to use "Copy Mode." In "Extended Mode," the portable monitor needs to be set as the main monitor in the display settings.
Can the touch monitor be used on a Macbook?
- If your MacBook is running macOS Mojave 10.14 or earlier, all touch screen models should work with the touch functionality.
- In versions after macOS Mojave 10.14, Apple introduced a new protection protocol, and only a few models support the touch functionality on MacBooks.
Why can't I draw with the touch pen on my monitor?
Ordinary touch screens support multi-touch (such as drag and drop, multi-finger sliding, and zooming), but they do not support writing or drawing functions. Macbooks and macOS only support single-touch input, so drawing with a stylus may not work on these devices.
Why can’t I touch a monitor with a touch function when it is displayed in portrait mode?
The monitor itself does not have a gravity sensor, and when the computer is set to rotate the display vertically, the resolution changes, causing a mismatch between the pixels of the touch screen and the display. Monitors with a built-in gravity sensor can rotate the screen and detect touch input correctly.
Can a mobile phone that does not support full-featured type-C still use a touch screen after connecting to a touch display?
No, it cannot. If a mobile phone does not have a full-featured Type-C port, it will not transmit the touch screen signal when connected through an HDMI port or similar. Only full-featured Type-C can support touch functionality.
Can game consoles or TV boxes support touch when connected to a touch monitor?
Unfortunately, game consoles and TV boxes cannot transmit touch screen signals through HDMI ports. Thus, they do not support touch functionality on touch monitors.
How to use the OTG interface on a portable monitor?
- When the monitor is connected via HDMI, the OTG interface of the monitor cannot be used.
- If connecting to a computer or mobile phone, the OTG interface can be used. This interface allows you to connect peripherals like a mouse, keyboard, or USB flash drive simultaneously.
How to connect a keyboard to a monitor?
- There are three types of keyboards: wireless Bluetooth, wireless (with receiver), and wired keyboards.
- For Bluetooth wireless keyboards, simply turn on the switch and pair them with your phone or computer through Bluetooth.
- For wireless keyboards (with receiver), the receiver should be connected to the monitor’s OTG port when using a Type-C to Type-C connection. If you are using HDMI or other interfaces, connect the receiver to the USB-A port of the computer or device.
- Wired keyboards can only be used if the monitor is connected directly via the OTG interface.
How long does a monitor last on battery power?
- The usage time depends on the usage scenario and settings. Generally, when connected to a computer or phone with 50% brightness and 80% volume (and reverse charging is off), the monitor lasts about 7 hours.
- If reverse charging is enabled, the battery duration is usually around 4 hours, depending on the phone’s power consumption and the charging current.
My monitor is connected to my laptop, and both devices have batteries. Will they charge each other? How can I prevent it?
- The USB-C port of a battery-powered monitor is shielded for charging purposes, and it does not support charging, regardless of whether it is connected to a power source or device.
- Some portable monitors allow laptops to charge the monitor via USB-A to USB-C, similar to how laptops charge mobile phones.
- If the monitor reverse-charges the laptop, it depends on whether the laptop supports a 5V power supply. Most laptops do not support 5V charging, so reverse charging from monitor to laptop is rare.
Will keeping the battery-powered monitor fully charged affect the battery life? Any damage to the screen or monitor?
The number of charge cycles affects battery life. Keeping the monitor plugged in when not in use reduces the number of charge cycles, which is beneficial. However, prolonged screen usage can reduce the screen's lifespan. It’s recommended to turn off the monitor when not in use to avoid unnecessary wear.
Does reverse charging of the monitor support fast charging? What is the power of reverse charging? How to calculate?
- Reverse charging cannot be activated in the following situations: 1) If the device only accepts the original power supply. 2) If the device supports only 9V or 20V charging, reverse charging won't work with a 5V 3A power supply.
- Fast charging requires activating the PD (Power Delivery) protocol. The PD30W power supply supports four sets of charging protocols: 5V 3A, 9V 3A, 15V 2A, and 20V 1.5A.
Compatibility Issues
- Most monitors and devices with HDMI interfaces can be connected, but if the refresh rate is too low (e.g., 30Hz or below), there may be issues with display output. Adjusting the refresh rate to above 30Hz should resolve the issue.
- There may be compatibility issues when connecting a monitor to a Type-C interface device with limited communication functions. Please refer to specific product details for compatibility information.
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