TVS Diode Causing Power-On Short in Industrial Touchscreen

Incident report on an industrial touch screen where a failed TVS diode caused a power short; troubleshooting, diode role, selection guidelines, and transient protection advice.

Does a Capacitive Screen Cause Ghosting While Charging?

Explains how capacitive touchscreen errors while charging stem from power-supply instability and charger noise, and recommends using genuine chargers, filtering, or firmware fixes.

Accelerating NFC on Operating Systems

Technical overview of NFC integration using single?chip controllers like the PN7150, covering RF performance, embedded NCI firmware, antenna matching, and low?power detection.

Touchscreen Lamination: GFF, OGS, Oncell, Incell

Technical overview of full lamination touchscreen methods, examining touch sensor placement, process flows, and key manufacturing differences for modern displays.

Microwave Motion Sensor Switch: Principle and Wiring

Microwave motion sensor switch: Doppler-effect detection, wiring and functions including sensitivity, anti-interference, ambient light control, timing, and concealed installation.

Improving 3D Recognition with 1D ToF in Smartphones

Technical article about electronics and hardware engineering.

Principles of Touch-Sensitive Switches

Overview of touch-sensing methods - capacitive touch, resistive touch, and radio-reception sensing - comparing principles, implementations, and environmental limitations.

How Fingerprint Unlock Works

Overview of fingerprint recognition: pattern types, optical/capacitive/RF capture methods, processing workflow from quality evaluation to feature extraction and matching.

Face Recognition Access Control: Operation and Pros/Cons

Overview of face recognition access control: operation steps, feature extraction and matching, liveness detection, logging, management, and key advantages and limitations.

Fingerprint Recognition in Smart Door Locks

Overview of fingerprint recognition methods - capacitive, optical, ultrasonic - covering sensing principles, pros/cons, robustness to contamination and anti-spoofing tradeoffs.

How Multitouch Is Implemented on Smartphones

Technical overview of multitouch technology, covering sensing mechanisms (FTIR, LLP, optical) and implementation trade-offs for gesture recognition and axis-based systems.

Why modern touchscreens no longer need calibration

Explains why early resistive touchscreens required user calibration and why modern capacitive touchscreens typically avoid calibration by using capacitance-based position sensing.

Limitations of Face Recognition Technology

Overview of face recognition: process, application categories, accuracy limits, unresolved challenges like occlusion and aging, and security considerations.

Origins and Future of Touchscreens

Technical overview of touchscreens: history, commercial adoption, material evolution and future trends focused on flexibility, low power displays, and multi-touch interaction.

Comparing Emerging Materials for Touch Panels

Overview of metal mesh as an ITO alternative for touch panels: materials, fabrication methods, adoption and key challenges in transmittance, line width, and durability.

Advantages of Face Recognition vs Fingerprint Recognition

Overview of face recognition systems: biometric image-processing, real-time 3D identification, template storage and access control, with comparison to fingerprint recognition.

Common Touchscreen Technologies and How Mobile Touchscreens Work

Overview of common touchscreen technologies and how mobile touch works, explaining capacitive and resistive touchscreen principles, SAW, optical and light-guide methods.

Biometric Identification for IoT Dog Management

Analysis of Chongqing dog registration and pet microchip policies, comparing low-frequency RFID and biometric methods for canine identification and traceability.

Adding Capacitive Touch to Cooktops

Technical overview of capacitive touch for cooktops: CapTIvate implementation, design challenges, guard channels, assembly tolerances, false-touch prevention, and EMC.

Common Touchscreen Faults and Maintenance

Guide to touchscreen troubleshooting and maintenance for SAW, five-wire resistive and infrared types: causes, calibration steps, LED diagnostics and hardware checks.