Resistive touch screen implicit edge misoperation problem solving: LONGSUN's innovative technology reshapes the interactive experience

  Today, with the popularity of touch technology, resistive touch screens are still widely used in industrial control, medical equipment, POS machines and other scenarios with their advantages of cost performance and strong anti-interference. However, there is a hidden pain point in the traditional resistive touch panel for a long time - the touch function is not responding due to the misoperation of the front cover edge. This problem not only affects the user experience, but also is likely to cause device operation failure and even security risks. 

With years of touch technology accumulation, LONGSUN Company has successfully overcome this industry problem through ITO conductive surface structure innovation and algorithm optimization, and set a new benchmark for the reliability upgrade of resistive touch screens. 

 I. Implicit edge misoperation: "invisible touch" of the resistive touch screen  The resistance touch screen forms voltage changes through the contact of the upper and lower layers of ITO conductive films, and then locates the touch coordinates. However, its physical structural characteristics determine the existence of natural defects in the marginal area:  

1. Uneven deformation of the equipment shell material: the conductive film deformation of the edge area due to assembly tolerance or long-term use, and the contact resistance is unstable;  

2. Resistance signal attenuation effect: When touching the edge, the voltage signal is susceptible to frame interference, resulting in coordinate calculation deviation;  

3. EMI environmental interference sensitivity: temperature changes, dust accumulation and other factors will further amplify the instability of the edge signal.  The superposition of these factors makes users often have "unresponsive" or "drift" when clicking on the edge of the screen, especially in the emergency operation of industrial equipment, accurate input of medical instruments and other scenarios, which may cause serious consequences.  

II. LONGSUN Company's solution: full-link optimization from hardware to software  In response to the problem of edge misoperation, Changsheng Company abandoned the traditional "single compensation" idea and achieved a qualitative leap in edge touch performance through the combination of Glass hardware structure innovation + intelligent algorithm optimization.  

1. Glass hardware layer: dynamic compensation structure breaks physical limitations  Changsheng's research and development team has redesigned the conductive layer and substrate structure of the touch screen, and adopted two gradient resistance distribution technical characteristics:  - Implant a high-precision resistance compensation network in the edge area to dynamically balance the contact resistance;  - Introduce elastic conductive glue filling technology to eliminate assembly gaps and reduce deformation interference;  - Optimize the border grounding design to shield external electromagnetic interference.  The actual measurement data shows that the structure improves the edge touch signal strength by 40% and the signal stability by 65%, laying the foundation for precise touch from the physical level.  

2. Driving algorithm layer: AI-driven intelligent coordinate correction compensation  LONGSUN independently developed the resistance EdgeGuard ™ algorithm correction, which conducts in-depth analysis of edge touch behavior through machine learning model:  - Dynamic threshold adjustment: correct the trigger threshold in real time according to the environmental temperature, humidity and other parameters;  - Track real-time compensation: predict the trajectory of fast sliding or continuous edge touch to eliminate drift;  - Wrong touch filtering mechanism: through the joint judgment of pressure sensor and touch duration, distinguish between effective click and misoperation.