Monitor the touchscreen and other issues
Touch functionality is undoubtedly crucial for electronic display devices. When using portable monitors, we often need to use touchscreens. We have summarized some common questions about monitor touchscreens to help you quickly find relevant answers to common issues. At the same time, some questions about interfaces and batteries can also be answered together.
How to connect a monitor with touch function to the computer?
Two connection methods:
- A computer with a full-featured TYPE-C interface can be connected to a monitor and then touched
- When connecting with HDMI, you need to use USB-A to USB-C to connect the USB interface of the computer and the TYPE-C interface of the monitor. If the output power of the computer's USB interface is too low, the monitor will also need an external power supply; The recommended connection order is to first connect the HDMI cable, then connect the USB-A to USB-C touch cable, and finally connect the power cable
Why do I go directly to the main computer screen when I touch on a touch-enabled monitor?
The mode is wrong. You need to use the copy mode. In extended mode, we need to select a portable monitor as the main monitor.
Can the touch monitor be touched after connecting to a MacBook?
- If the Macbook version is macOS Mojave 10.14 or earlier, all touch screen models can implement touch screens
- In versions after macOS Mojave 10.14, the device system has updated the protection protocol, and some models support the Macbook touch function.
Why can't I draw on my monitor with the touch pen?
Ordinary touchscreens support multi-touch such as drag & drop, multi-finger slide, and zoom (Macbooks and Mac OS only support single-touch), whether with fingers or a stylus pen, but not writing, drawing, and other functions.
Why can't I touch a monitor with touch function when displayed in portrait mode?
The monitor itself does not have a gravity sensor, and the resolution changes when the computer is set to rotate the display vertically; the pixels of the touchscreen and the display are staggered and cannot be recognized; the monitor with a gravity sensor is rotated by the monitor itself, and the hardware has occurred. Change so you can touch it;
Can a mobile phone that does not support full-featured Type-C be used for touch functions after being connected to a touch display?
Not supported. If a mobile phone does not have full-featured Type-C connection capability, it is connected to the monitor via the HDMI port of the same screen cable, and the touchscreen signal is not transmitted.
Can game consoles, TV boxes, and touch monitors be connected to support touch?
Not supported; If you connect the monitor via the HDMI port of the same screen cable, no touchscreen signals will be transmitted
Use of the OTG interface for portable monitors
- When the computer is connected via HDMI, the OTG interface of the monitor cannot be used.
- When connecting to a computer or mobile phone, you can use the OTG interface of the monitor. A mouse, keyboard, USB stick, etc. can be connected simultaneously via the OTG interface.
How to connect the keyboard to the monitor
- There are three types of keyboards: wireless Bluetooth keyboard, wireless keyboard, and wired keyboard.
- When using the wireless Bluetooth keyboard, the receiver is unusable. You can directly turn on the wireless Bluetooth keyboard switch and then connect the mobile phone or computer via Bluetooth adaptation.
- The use of wireless keyboards must be divided into the following two situations, and both require the use of a receiver. 1. The monitor and computer/mobile phone are connected via a Type-C to Type-C cable (Type C is used as the signal source). Regardless of the computer or mobile phone, the wireless keyboard receiver can be connected directly to the OTG port of the monitor via the OTG cable. 2. If it is not a Type-C to Type-C cable connection (connect HDMI/Mini DP, etc. to a mobile phone/computer as a signal source), if the monitor is connected to a computer or other device, the receiver must be connected to the USB-A port of the computer and cannot be placed on the monitor OTG. The monitor is connected to a mobile phone with a Type-C to Type-C cable connection and does not support a wireless keyboard.
- The wired keyboard can only be used when the mobile phone or computer is connected directly via the OTG interface of the monitor.
How long does a monitor with batteries last?
- The usage time depends on the usage scenario and settings; In general, when connected to a computer or mobile phone, at 50% brightness and 80% volume and with the reverse charging function off, the usage time is about 7 hours;
- If you enable the reverse charging function, you need to check the power of the phone itself and the current it consumes. Generally, it can be used for about 4 hours.
My monitor is connected to my laptop and both devices have batteries. Will they attack each other? How can I prevent it?
- To prevent overload, the USB-C port of the battery-powered monitor is shielded for charging. This port does not support charging, regardless of whether it is connected to a power source or a device.
- For some portable monitors, notebooks can charge the monitors via USB-A to USB-C, just as notebooks charge mobile phones.
- If the monitor reverse-charges the laptop, it depends on whether the laptop supports a 5V power supply. However, most computers do not support a 5V power supply, so battery models are less likely to reverse-charge the computer.
Will charging the battery-powered monitor to keep it fully charged affect battery life? Are the screen and monitor damaged?
The number of charge and discharge cycles of the battery affects the battery's lifespan. If you keep the battery charged with a charger, the charger takes precedence, which shortens the number of charge and discharge cycles of the battery. It is recommended to turn off the monitor when not in use. If you leave the screen on for a long time, the screen's lifespan will be shortened, and the process will accelerate. Alternative.
Does the monitor's reverse charging support fast charging? What is the power of reverse charging? How to calculate?
- In the following situations, reverse charging cannot be activated: 1. If the device only accepts the original power supply, it cannot be reverse charged after connection, e.g. Switch 2. If the device only supports 9V or 20V power supply, it cannot be reverse charged after connection to a 5V 3A power supply. Some monitor models (K-series) with PD30W power supply cannot be reverse charged; 5.6.2 For battery models, reverse charging is not possible. The charging power does not exceed 5V, 1.5A, 7.5W. 3. For other monitors without batteries, theoretically, the reverse charging power is ~ input power * 80% - rated power of the monitor
- Fast charging requires the activation of the PD protocol. Different devices have different voltage V requirements. The PD30W power supply we currently use is 3.0 and supports four protocol sets: 5V 3A/9V 3A/15V 2A/20V 1.5A.
Compatibility issues
- Most monitors and devices with an HDMI interface can be connected and used. If the refresh rate output by some devices is too low (30Hz) or below, the connection may not be displayed. You need to set the refresh rate output by the device to over 30Hz.
- Incompatibilities may occur if the monitor is connected to a TYPE-C interface device with an initialization communication function. Please inquire for details.
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