What to Do When Industrial Touchscreen Displays Exhibit Insensitivity?

Industrial touchscreen displays equipped with touch functionality are crucial components in industrial settings. However, when these touchscreens become unresponsive, it’s important to understand the causes and implement effective solutions. Let’s begin by exploring the various reasons for touch insensitivity and then devise appropriate strategies to address them.

 

I. Analysis and Solutions for Resistive Touchscreen Malfunctions

 

Issue 1: Misalignment between Cursor and Touch Point

Symptom: The touched position does not align with the cursor arrow.

Analysis: After driver installation, improper calibration of the vertical touch center could lead to misalignment. Poor contact or circuit breaks in the touchscreen’s signal lines might also cause this issue.

Solution: Re-calibrate the touch position; inspect for signal line breaks, reconnect them, or consider replacing the touchscreen.

 

Issue 2: Touchscreen Accuracy Deviation

Symptom: When untouched, the cursor arrow remains fixed at a specific point, and when touched, the cursor appears at the midpoint between the touch point and the original position.

Analysis: Foreign objects (non-intentional touches) may be exerting pressure within the effective working area of the resistive touchscreen.

Solution: Remove any foreign objects from the effective working area of the resistive touchscreen.

 

Issue 3: No Response to Touch

Symptom: Touching the screen does not trigger any cursor movement or positional changes.

Analysis: Several factors may contribute to this issue, outlined below:

  1. Faulty touchscreen.
  2. Malfunctioning touchscreen controller card.
  3. Damaged touchscreen signal lines.
  4. Serial port malfunction on the computer host.
  5. Operating system issues on the computer.
  6. Incorrect touchscreen driver installation.

 

II. Common Faults and Troubleshooting for Resistive Screens

 

Limited Mouse Movement within Small Area or Inaccurate Touch Response

This issue often arises after the initial driver installation and can be resolved by running the touchscreen calibration program. Running the calibration program is also necessary after altering display resolutions (Start -> Programs).

 

Cursor Persistent at a Specific Point on the Screen Edges

This occurs when the touchscreen’s touch area (split into touch and non-touch regions) is physically obstructed by the monitor or cabinet casing. If the cabinet casing is pressing against the touch area, adjust the distance between the cabinet and monitor screen. If the monitor casing is the issue, try slightly loosening the screws on the monitor casing. If the problem persists, please contact our support team.

 

III. Installation Tools and Videos

 

 

 

https://drive.google.com/drive/folders/1YFxJShSFrdJPOETDypYyeQogTpel5Bzv?usp=sharing

 

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