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Technical Support & FAQ

Dedicated to providing professional touch solutions and instant troubleshooting for your projects.

FAQ for Infrared(IR) Touch Frame

Yes, our IR touch frame hardware supports up to 40 simultaneous touch points. However, whether multi-touch works or if the frame is even functional depends entirely on the kernel configuration of your operating system:

  • Multi-touch Supported: Windows 7/8/10/11, mainstream Linux desktop distributions (like Ubuntu), and standard native Android systems support multi-touch out of the box, enabling seamless multi-user writing and gestures.

  • OS Limitations (Single-touch or Unresponsive):

    1. Apple Systems (iOS / macOS): Due to Apple's ecosystem restrictions on third-party peripherals, external touch frames are treated as standard mice, meaning they only support single-touch mouse emulation, not native multi-touch gestures.

    2. Customized/Stripped-down Android Systems (Important): Some customized Android builds designed for specific media players, kiosks, or industrial boards might have their touch configuration files (such as .idc files) omitted by the developer, causing the screen to only support single-touch. In more extreme cases, highly stripped-down Android kernels completely lack external USB touch drivers, which will result in the touch frame being completely unrecognized and unsupported.

No special stylus is required.

Since IR technology relies on "light interruption," any opaque object—including your finger, a gloved hand, a pointer, or a plastic stylus—will register as a touch input as long as it blocks the light beams.

This usually happens due to changes in screen resolution, incorrect aspect ratios, or a slight physical misalignment between the touch frame and the LCD panel during installation.

Solution:

  1. Use Our Dedicated Configuration Software (Recommended): You can use the official touch frame calibration/configuration utility provided with our product. Launch the software, run the calibration tool, and precisely tap the target points on the screen. This permanently saves the calibrated coordinates directly into the hardware firmware to resolve any offset issues.

  2. Use Built-in OS Tools: On Windows, you can alternatively open the Control Panel, navigate to Tablet PC Settings, and click Calibrate. Follow the on-screen prompts to tap the crosshairs to realign the touch input.

Please try the following troubleshooting steps:

  • Check the USB Connection: Ensure the USB cable is securely plugged in. Try switching to a different USB port (motherboard ports on the back of a PC are preferred).

  • Check for Extension Cables: If you are using a USB extension cable, it might cause voltage drops or signal degradation. Try plugging the touch frame directly into the computer without the extension.

  • Bezel Obstructions: Dust, paper debris, or small insects might be sitting on the inner bezel (the filter strip), blocking the IR sensors.

  • Ambient Light Interference: Check if the screen is exposed to direct sunlight or high-intensity spotlights. Strong external IR light sources can interfere with the sensors.

About 90% of the time, this is caused by a dirty IR filter strip. Check the inner edges/bezel of the touch frame for smudges, grease, liquid residue, or large dust particles. When dirt blocks the IR beams constantly, the system misinterprets it as a continuous touch input.

  • Cleaning Tool: Use a clean, soft microfiber cloth (such as a glasses cloth or lens wipe).

  • Cleaning Method: Gently wipe down the inner grooved bezel where the IR sensors and filter strips are located. For stubborn stains, slightly dampen the cloth with a minimal amount of rubbing alcohol or water. Never spray liquid cleaners directly onto the touch frame, as fluid ingress can damage the internal circuitry.

Whether it can be used directly depends on the TV's operating system and configuration:

  • Direct Standalone Use: Most smart TVs running standard television software do not natively support external touch screens. If you intend to connect the touch frame directly to the TV's built-in system via USB, please verify with your TV manufacturer beforehand that the system includes external touch driver support.

  • As a Computer Display (Recommended): If the TV is used as a monitor connected to a computer (PC/Mini PC), simply mount the IR touch frame onto the TV and plug the USB touch cable into the computer. In this setup, the TV instantly transforms into a fully functional interactive touch display.

Yes, we offer comprehensive OEM/ODM customization services to meet your specific project requirements. Our customization capabilities include:

  • Custom Sizes & Aspect Ratios: We can tailor the dimensions to fit any non-standard display. Simply provide us with the precise length, width, or the active touch area dimensions you require.

  • Structure & Appearance: Tailored bezel widths, ultra-thin profiles, waterproof/dustproof designs, or specialized mounting brackets for seamless integration into your kiosks or enclosures.

  • Hardware & Interface: Custom USB/RS232 cable lengths, connector types, or specific touch point configurations (up to 40 points).

How to proceed: Please contact our sales team with your detailed specifications. Our engineering team will evaluate your requirements and provide a detailed quote and estimated lead time within 24–48 hours.

Yes, tempered glass or acrylic can be added seamlessly between the display and the IR touch frame. Since IR technology relies on an optical light grid above the surface, it functions perfectly as long as the internal sensors are not physically blocked. However, for the best performance, please consider the following industrial guidelines:

  • Thickness & Positioning: We generally recommend using 2mm to 4mm glass. Ensure the glass is securely mounted and flat, leaving a tiny, consistent gap from the inner filter strip to avoid structural pressure.

  • Optical Treatment (Anti-Glare): For outdoor use, high-brightness environments, or large-size interactive displays, we highly recommend using AG (Anti-Glare) or AR (Anti-Reflection) tempered glass to eliminate reflections and ensure crystal-clear visibility.

  • Vandal-proof & Safety: For public kiosks or educational interactive whiteboards, choosing IK08/IK10 rated tempered glass provides robust protection for the underlying LCD panel.

Our IR touch frames comply with standard USB HID protocols and offer extensive cross-platform compatibility. The support details for mainstream operating systems are as follows:

  • Windows (7 / 8 / 10 / 11): Fully plug-and-play with native support for up to 40-point multi-touch and fluid gesture controls.

  • Linux (e.g., Ubuntu): Plug-and-play on standard desktop distributions, fully supporting native multi-touch functionality. (Note: Customized or lightweight embedded Linux systems may require driver porting due to missing kernel components).

  • Android: Out-of-the-box support for standard native Android systems.

    • Important Compatibility Note: Some customized Android boxes, smart TVs, or industrial boards running tailored/stripped-down Android kernels may have had their touch configuration files (e.g., .idc files) or USB touch drivers completely removed by the hardware vendor. In such cases, the frame may only support single-touch or be entirely unrecognized.

  • macOS / iOS: Recognized instantly as a standard input device. However, due to Apple's ecosystem restrictions on third-party peripherals, it only operates in single-touch mouse emulation mode (standard cursor navigation), and native multi-touch gestures are not supported.

on most cases, no drivers are required (driver-free).

Our touch frames comply with standard USB HID protocols for true plug-and-play functionality. Simply plug it into a USB port, and it will work instantly on major operating systems like Windows, Android, Liunx(Ubuntu) and IOS

An IR touch frame is a hardware peripheral that uses an infrared matrix to detect and locate touch gestures on a display.

How it works: LEDs and photodetectors are embedded around the perimeter of the frame to create an invisible grid of IR light beams across the screen. When an object (like a finger) touches the screen, it blocks the IR beams at that specific location. The controller then calculates the X/Y coordinates of the interruption to register the touch input.

Capacitive Touch Screen FAQ

A PCAP touch screen features a sheet of glass integrated with a transparent sensor matrix (ITO conductive layer).

How it works: When a user touches the screen, the electrical field of the human body creates a minute coupling capacitance with the screen's surface. The controller continuously scans the drive and receive electrodes to detect changes in capacitance, calculating the exact X/Y coordinates of the touch.

Capacitive screens rely on electrical field sensing, meaning conductive objects must be used for input:

  • Supported: Bare fingers, passive/active capacitive styluses, or thin conductive gloves (like thin latex gloves).

  • Unsupported: Insulating objects (like plastic pointers or standard wooden styluses), fingernails (which are non-conductive), or thick winter gloves will fail to trigger a change in capacitance.

Metal is a highly conductive material. If the active touch area is too close to a metal bezel or housing without sufficient clearance, the parasitic capacitance from the metal will disrupt the screen's electric field, causing ghost touches or a frozen touch controller.

  • Design Recommendation: Always maintain a vertical and horizontal clearance of at least 1.0mm to 2.0mm between the active touch area (AA) and any metal frame, using non-conductive foam tape or spacers.

Yes, this integration is widely known as a “G+G” (Glass-on-Glass) configuration or adding a Cover Glass.

Since PCAP technology projects an electric field that can penetrate top layers, adding an external cover glass (typically 2mm to 6mm thick) is fully supported. The touch controller's sensitivity (gain settings) can be tuned via firmware to maintain flawless touch responsiveness, making it ideal for vandal-proof outdoor kiosks and industrial environments.

Water is a conductive liquid. When water droplets, moisture condensation, or fluid spills sit on a capacitive screen, they introduce a distinct capacitive load. The controller cannot always differentiate between water and a finger, leading to touch drifting or multi-touch dropouts.

  • Solution: Simply wipe the screen dry to restore normal operation. For outdoor or washroom environments requiring water-resistance, a specialized touch IC (e.g., ILITEK, EETI) paired with water-rejection firmware tuning must be deployed to filter out water-induced capacitance signals.

Capacitive screens are highly susceptible to Electromagnetic Interference (EMI) and high-frequency noise. If the equipment lacks proper grounding, uses a low-quality switching power supply, or operates near heavy machinery (like variable frequency drives or motors), noise will leak into the touch IC via the USB/COM ground line, distorting the signal.

Solution:

  1. Ensure the entire display chassis and motherboard are properly and securely grounded (GND).

  2. Snap a ferrite core (anti-interference magnetic ring) onto the USB data cable.

  3. Upgrade to a high-quality, filtered, industrial-grade power supply (an isolated DC-DC power module is highly recommended).

  • Allowed: Use a microfiber cloth lightly dampened with isopropyl alcohol (IPA) or a neutral, alcohol-based glass cleaner to gently wipe the glass surface.

  • Prohibited: Avoid strong acids, alkaline cleaners, or chemical solvents containing sodium hydroxide. If the cover glass features surface enhancements like AG (Anti-Glare), AR (Anti-Reflection), or AF (Anti-Fingerprint) vacuum coatings, aggressive chemicals can permanently erode and degrade these optical treatments.

Infrared Touch Electronic Whiteboard FAQ

The lag is virtually imperceptible.

Our IR electronic whiteboards are equipped with high-refresh-rate infrared sensor chips, delivering a response time within 4ms to 8ms. Whether writing with a finger or a pointer, the digital ink closely tracks the tip, providing a smooth and natural experience akin to writing on a traditional blackboard.

Our whiteboard hardware natively supports up to 20 or 40 touch points, which perfectly allows for multi-user collaboration. If you experience breakages, it is usually due to:

  • Writing Posture (Occlusion): If a user's sleeve or the side of their palm gets too close to the screen while writing, it may inadvertently block the IR light beams intended for another touch point.

  • Software Restrictions: The whiteboard software you are running might not have "multi-pen mode" enabled, or the application itself might only support single-user input. Please verify that multi-writing is activated in your software settings.

No, you do not.

Since the IR electronic whiteboard relies on light interruption technology, any opaque object—such as your finger, a standard plastic pointer, or a passive soft-tip stylus—can be used as a writing tool.

  • Recommendation: While any opaque item works, to protect the display surface, please avoid using objects with sharp metal or hard stone tips to prevent surface scratches.

This indicates that the coordinates are uncalibrated (offset error). It typically happens after the projector is moved, the computer resolution changes, or the display aspect ratio shifts (e.g., from 4:3 to 16:9).

Solution:

  1. If you are using an external PC, go to the Windows Control Panel, open Tablet PC Settings, and click Calibrate.

  2. For best results, run our dedicated whiteboard calibration utility provided with the product. Tap the 4, 9, or 16 crosshairs that appear on the screen sequentially with your pen tip to align the touch grid perfectly with the display.

IR whiteboards operate by emitting and detecting invisible infrared light grids. If the device is installed next to a window with direct sunlight, or directly under high-power halogen spotlights, the intense ambient IR light can saturate the optical receivers around the frame, leading to dead spots or erratic tracking.

Mitigation: Avoid placing the whiteboard in direct sunlight (use blinds if necessary) and adjust the angle of overhead spotlights to ensure they do not shine directly into the grooved inner bezels of the whiteboard frame.

  • Do NOT use standard chalk: The dust generated by traditional chalk will quickly accumulate inside the inner grooved bezels (over the IR filter strips), completely blocking the optical signals and causing total touch failure. Always use dedicated water-based whiteboard markers or passive styluses.

  • Bezel Cleaning Method: Periodically run a dry, flat microfiber cloth along the inner channels of the frame to clear away accumulated dust, marker residue, or fibers. Never spray water or liquid cleaners directly into the recessed grooves, as fluid ingress can damage the internal optoelectronic components.

Interactive-electronic-whiteboard

The IR electronic whiteboard functions as a standard input peripheral. The typical setup operates in a loop:

  • Display Output: The computer's screen image is sent via an HDMI/VGA cable and projected onto the whiteboard surface by a projector (or displayed by the whiteboard's integrated LCD panel).

  • Touch Return: When you touch the whiteboard, the IR sensors capture the movement and instantly send the coordinates back to the computer via a USB touch cable.

  • Plug-and-Play: The USB touch interface is driver-free and works out of the box on major operating systems, including Windows, Android, and Ubuntu (Linux).

An IR touch frame is a hardware peripheral that uses an infrared matrix to detect and locate touch gestures on a display.

How it works: LEDs and photodetectors are embedded around the perimeter of the frame to create an invisible grid of IR light beams across the screen. When an object (like a finger) touches the screen, it blocks the IR beams at that specific location. The controller then calculates the X/Y coordinates of the interruption to register the touch input.