What are the current touch technologies that GT is adopting?
Projected Capacitive Touch (PCAP Touch) and Surface Acoustic Wave Touch (SAW Touch).
Among these, the PCAP Touch screens do not require additional driver installation, as the operating system provides native support. However, SAW Touch screens require the installation of GT's proprietary drivers.
Explanation of Technical Terms:
Projected Capacitive Touch (PCAP Touch):
This is a widely used touch technology in modern devices like smartphones and tablets. It works by detecting changes in the electrostatic field when a conductive object (like a finger) comes into contact with the screen. It is highly responsive, supports multi-touch gestures, and offers excellent durability.
Surface Acoustic Wave Touch (SAW Touch):
This technology uses ultrasonic waves that travel across the surface of the screen. When the screen is touched, the waves are absorbed or disrupted, allowing the system to determine the touch location. SAW touch screens are known for their high clarity and durability but require precise calibration and additional drivers for proper functionality.
What are the considerations when choosing a suitable touch monitor?
| Viewing Distance | Screen Size |
| 40~55 cm | 20-24 inches |
| 55~70 cm | 24-27 inches |
| 70~80 cm | 27-32 inches |
| 80~100 cm | 34 inches |
| 100~150 cm | 42 inches |
| >150 cm and <250 cm | 42-55 inches |
Resolution:
Resolution refers to the number of pixels per unit area, typically expressed as: Resolution = H (Horizontal) × V (Vertical).
For example, 1920×1080@60Hz means there are 1920 pixels along the horizontal axis and 1080 pixels along the vertical axis. The “60Hz” indicates the refresh rate, meaning the screen refreshes 60 frames per second.
-For screens of the same size, higher resolution (and therefore higher PPI, or Pixels Per Inch) results in sharper and more detailed images, as well as the ability to display more content.
-For screens sized 18.5-32 inches, a resolution of 1920×1080@60Hz is recommended.
-For screens larger than 32 inches, a resolution of 3840×2160@60Hz (4K) is recommended.
Aspect Ratio:
According to ergonomic studies, the human field of vision is best suited to a 16:9 rectangular aspect ratio. Therefore, displays with a 16:9 aspect ratio are commonly recommended.
Brightness:
Brightness is one of the three primary attributes of color. Higher brightness makes colors more vivid, but prolonged exposure to high brightness can strain the eyes. For indoor office use, a brightness level of 100-200 nits is ideal to minimize eye fatigue. For outdoor use or environments where users do not focus on the display for extended periods, a brightness level of 500 nits or higher is recommended.
Contrast Ratio:
Contrast ratio is the ratio of brightness between the whitest white and the blackest black on the display. A higher contrast ratio enhances image detail and makes the picture appear more vivid.
Response time refers to the speed at which liquid crystal molecules align and return to their original state under the influence of an electric field. Displays with slow response times may exhibit motion blur or "ghosting" effects. A shorter response time ensures smoother visuals, especially for fast-moving content.
Confirm the compatibility of the touch monitor with your operating system. Most common operating systems, such as Windows and mainstream Linux distributions, support plug-and-play functionality without requiring additional configuration.
Modern touch screens typically support 10 touch points, allowing for multi-touch gestures with both hands. This is sufficient for most applications.
Evaluate the specific conditions in which the touch monitor will be used:
Environment: Indoor or outdoor, extreme temperatures, complex electromagnetic environments, or required ESD (Electrostatic Discharge) protection levels.
Input Method: Whether the display needs to support use with gloves, styluses, or other specialized input tools.
| Interface | Type | Features | Maximum Resolution Supported |
| VGA | Analog video input interface | - Weak anti-interference capability - Does not support hot-plugging - Cannot transmit audio signals |
FHD (1920×1080) |
| DVI | Digital video input interface | - Supports hot-plugging - Can transmit audio signals |
4K @30Hz |
| HDMI | Digital video input interface | - Supports audio transmission - Supports hot-plugging |
8K @120Hz |
| DP | Digital video input interface | - Supports audio transmission - Supports hot-plugging |
16K @60Hz |
The ability to connect or disconnect a device (such as a display) while the system is powered on, without causing damage or requiring a restart.
How to ensure readability of a touch monitor where there is glare due to direct lighting?
Chemical Etching:
This method involves treating the surface of the screen using a chemical etching process to create microscopic uneven structures.
These microstructures scatter incoming light, reducing reflections and glare, thereby improving screen readability in bright or direct lighting conditions.
Chemical etching is commonly used to produce anti-glare glass and can be customized to meet specific application requirements by adjusting the anti-glare parameters.
How to prevent cracked or broken glass of a touch monitor from the possibility of injuring users?
Anti-shatter glass is designed with high strength and impact resistance. When subjected to external force, it does not break into sharp fragments. Instead, it forms a web-like pattern of cracks while maintaining its overall structural integrity. Additionally, the back side of the anti-shatter glass prevents glass shards from flying, effectively protecting against explosions, impacts, and other external forces.
Types of Anti-Shatter Glass Provided by GT:
1.Laminated Glass:
Principle: Laminated glass is made by combining two sheets of physically tempered glass using a special interlayer film.
Production Process:
The two tempered glass sheets are bonded together using a heat press to remove as much air as possible from between the layers.
The assembly is then placed in a de-airing machine, where high temperature and high pressure dissolve any remaining air into the interlayer film.
Features: Laminated glass offers excellent impact resistance and prevents glass shards from separating, making it ideal for environments requiring high safety standards.
2.Standard Explosion-Proof Glass:
Principle: This type of glass is typically made from single-pane float glass that has undergone physical strengthening processes.
Features:
The explosion-proof performance improves as the thickness of the glass increases.
While not as advanced as laminated glass, it still provides effective protection against breakage and flying shards.
How to keep the touch monitor running smoothly in a humid environment?
Use sealing strips or silicone sealant between the touch monitor panel and the cabinet to enhance the waterproof performance of the display.
Note: Typically, the back side of the touch monitor is not waterproof, so additional precautions may be necessary for full protection.
Customized Waterproof Solutions:
If you have specific waterproofing requirements, GT can provide customized touch monitors in various sizes to meet your needs.
How to protect a touch monitor in a dusty environment?
Use dustproof compressed foam to seal the gap between the touch monitor panel and the cabinet.
Customized Dustproof Solutions：
If the touch monitor is used as a standalone device, GT can provide customized solutions based on your requirements.
These customizations may include:
-Special dustproof treatments for electronic components.
-Modifications to the cooling structure to prevent dust accumulation while maintaining proper heat dissipation.
What are the installation options of a GT touch monitor?
VESA Mounting Holes:
GT's standard touch monitors come with VESA mounting holes, which are compatible with most mounting brackets, arms, or wall mounts.
Side Mounting Holes:
Some GT touch monitors also feature side mounting holes, allowing for flexible installation options depending on the environment and requirements.
Customized Installation Solutions:
If you have special installation requirements, GT can provide customized installation structures based on your cabinet design and specific needs. This ensures seamless integration with your equipment or environment.
How to operate the LED light strips of a touch monitor?
Follow these steps to light up the LED light strip on the touch monitor :
1.1 Connect the LED controller to the LED strip connection cable (provided as an accessory).
1.2 Insert the other end of the LED strip connection cable into the LED strip input port on the touch monitor(refer to the markings on the shielding cover for guidance).
1.3 Plug one end of the USB cable (provided as an accessory) into the LED controller and the other end into the host device.
1.4 Connect the adapter output to the LED controller and turn on the power.
1.5 Use the GT LED controller app to adjust the LED strip settings, such as mode, color, number of LEDs, and brightness. (Refer to the LEDBarTool User Manual for detailed instructions.)
To connect multiple LED light strips in series:
2.1 Use the LED strip connection cable to connect the OUTPUT port of the first LED strip (refer to the markings on the shielding cover) to the INPUT port of the next LED strip.
2.2 Follow the steps in "How to Power On the LED Light Strip touch monitor " to light up the daisy-chained LED strips.
3.1 Using DIY or Third-Party LED Controllers:
Before powering on the system, consult GT customer support to ensure compatibility and proper setup.
3.2 Closed-Loop LED Strip Effects for Daisy-Chained Displays:
If you want to achieve a closed-loop LED strip effect for daisy-chained touch monitors, request a wiring diagram from GT customer support for proper configuration.
How to troubleshoot and resolve issues of a capacitive touch panel/touch monitor?
Symptoms: When tapping the screen, it sometimes responds and sometimes does not.
Solutions:
a.Try applying slightly more pressure during operation.
b.Check the screen surface for:
-Oil stains.
-Excessive water or moisture (the screen should be kept dry).
-Adhesive substances.
c. Clean the screen if necessary.
d. If the issue persists, report the problem to GT, and an engineer will be assigned to assist.
Symptoms:
-Dragging icons or objects fails.
-Lines break when drawing in software like MS Paint (mspaint.exe).
Solutions:
a.Try applying slightly more pressure during operation.
b. Check the screen surface for:
-Oil stains.
-Excessive water or moisture (the screen should be kept dry).
-Adhesive substances.
d.Clean the screen if necessary.
If the issue persists, report the problem to GT, and an engineer will be assigned to assist.
Symptoms: The screen registers random touches even when not being touched.
Solutions:
a.Try applying slightly more pressure during operation.
b. Check the screen surface for:
-Oil stains.
-Excessive water or moisture (the screen should be kept dry).
-Adhesive substances.
d.Clean the screen if necessary.
If the issue persists, report the problem to GT, and an engineer will be assigned to assist.
Symptoms: The screen behaves unpredictably or erratically when touched, but there are no ghost touches when not touched.
Solutions:
a. Check the grounding of the entire device: Ensure that the power supply and the device are properly grounded.
b. Change the AC power source: Try plugging the device into a different power outlet to see if the issue improves.
c. Turn off unrelated devices: Temporarily disable or turn off other nearby devices to identify and eliminate potential sources of interference.
Symptoms: The screen does not respond to any touch input.
Solutions:
Check if the USB communication cable is securely connected.
Verify that the system's USB bus is functioning properly (e.g., check in Windows Device Manager).
What are the causes and prevention of image retention (ghosting) in my monitor?
Due to the physical characteristics of LCD and LED monitors, after displaying the same and still image for a long period of time, may occur the phenomenon of residual images, also known as ‘image retention’.
The way to avoid this phenomenon is to try not to display static content for a long time. If possible, switch off the monitor periodically for 24 to 48 hours.
Alternatively, you can do the following:
- Alternating black/white images for 48 to 72 hours
- It's recommended to use the screen saver to protect your monitor. This applies to your monitor if it is not in use for a period of time, but it still needs to keep illuminated.
