Screen Click Scratch Life Tester

Screen Click Scratch Life Tester is used to evaluate the durability of touchscreens under repeated clicking and scratching actions during long-term use. The device applies repeated clicking or scratching motions to the touchscreen surface under controlled pressure, speed, and trajectory conditions to assess the surface's resistance to damage and functional integrity.

Application

This equipment is suitable for the following products and testing scenarios:

- Click endurance testing of touchscreens for mobile phones and portable electronic devices
- Scratch durability assessment of capacitive touchscreens
- Reliability verification during the R&D phase of touch display modules
- Life sampling inspection of finished touchscreens after mass production
- Functional verification of OLED and other display devices following mechanical endurance testing

Applicable to touchscreen manufacturers, display module factories, and related testing laboratories.

Standards

GB/T 4208-2017 “Degrees of Protection Provided by Enclosures (IP Code)”

SJ/T 11342-2015 “General Specifications for Touch Screens”

SJ/T 11467-2014 “General Specifications for Capacitive Touch Screens”

ISO 6508 / ISO 14577 Surface Hardness and Micro-Damage Supplementary Assessment

IEC 62341 (OLED Series) Display Device Reliability Assessment Reference

IEC 60068-2 Series Functional Verification After Environmental and Mechanical Stress Testing

Parameters

Features

- Utilizes a PLC control system for stable operation and intuitive parameter settings
- Supports both click and line-drawing modes for lifespan testing
- Features cumulative test count tracking and power-off memory function
- Adjustable click and line-drawing pressure to accommodate diverse screen testing requirements
- Supports multiple motion trajectories to simulate real-world usage conditions
- Automatically shuts down upon reaching the preset lifespan count, minimizing human intervention

Accessories

Test Principle

During testing, a cylinder-driven probe applies a set normal load to the touchscreen surface, performing periodic tapping or scribing movements along a predetermined trajectory.

By controlling test cycles, applied pressure, and movement speed, the probe evaluates surface scratch conditions and functional responsiveness after a specified lifespan cycle. This determines the touchscreen's resistance to tapping, scratching, and overall service life.

Test Procedures

Mount and secure the touchscreen sample onto the test platform.
Install the click or scratch probe and set the loading force.
Configure the movement trajectory, speed, and target lifespan cycles.
Initiate the test; the device will operate automatically per the programmed sequence.
The device will automatically stop upon reaching the preset cycle count.
Remove the sample and inspect the surface for scratches and functional responsiveness.

FAQ

1. What types of touchscreens can you test with this equipment?

You can test capacitive touchscreens, OLED displays, and other flat panel touch interfaces used in consumer electronics, automotive systems, and industrial devices.

2. Can you perform both click and scratch tests on the same sample?

Yes. The tester supports both clicking and line-drawing scratch modes, allowing sequential or independent durability evaluation.

3. How do you ensure consistent test pressure during long-term testing?

The cylinder loading system combined with calibrated standard weights maintains stable and repeatable normal force throughout the test.

4. What happens if there is a power interruption during testing?

The built-in power-off memory function preserves the test count, allowing you to resume testing without losing accumulated data.

5. How do you evaluate test results after completion?

You assess surface wear, scratch depth, visual defects, and touchscreen functional responsiveness according to your internal quality or standard requirements.

6. Is the tester suitable for mass production quality control?

Yes. Its stable operation, automated control, and repeatability make it suitable for both R&D validation and routine production sampling inspections.