
External Electromagnetic Radiation
Sources and Impacts of EMI Interference
Touch panels may be affected by both internal and external electromagnetic interference (EMI) during operation.
- External EMI:
This interference originates from surrounding electronic devices, motors, high-voltage power lines, and wireless communication modules. The electromagnetic radiation they produce can compromise the sensitivity and accuracy of touch panels.
- Internal EMI:
This interference comes from within the device itself, including switching power supplies, high-speed signal lines, motors, wireless modules, poor grounding, and power noise. These factors can lead to unstable touch panel operation or abnormal displays.
Electromagnetic interference can cause unstable operation, reduced sensitivity, or even display abnormalities in touch panels. Therefore, ensuring strong anti-interference capabilities is essential when using touch panels in high-EMI environments.