TFT LCD Displays for Medical Equipment

To select the right TFT-LCD for medical applications, engineers and decision-makers need a thorough understanding of how the specifications of a TFT-LCD affect the final product. It's also important to understand how monitors differ from industrial or consumer LCD monitors.

◆TFT Display & Medical Equipment

In the past, medical devices with displays were usually bulky, with many dials and buttons. Machines with buttons and knots provide a breeding ground for harmful pathogens because it is harder to clean than modern machines with flat touchscreen interfaces. The use of TFT LCD touch screens on medical equipment is not only convenient for disinfection but also saves a lot of front panel space that can be used to display important medical information.

◆Harsh working environment

Medical equipment can be illuminated through extremes of temperature, shock and shock, humidity, and environmental changes. As such, it requires a highly reliable TFT LCD display and possibly a transparent cover to protect the display from the rigors of everyday use.

Although the imagination of ordinary LCD displays is not enough, medical TFT suppliers like Tuopuwei can add some enhancements, such as optically bonded front panels and anti-reflective coatings, and transflective displays with both reflective and transmissive properties.

◆Medical standards

Medical TFT LCD modules are commonly used in three applications: standard (such as monitors), life support (such as blood glucose meters), and life-critical equipment (such as ventilators). These applications have very different requirements in terms of functionality, reliability, and MTBF (mean time between failures). The industry generally accepts the acceptance test rules of two well-known standards organizations: the European DIN and the American Society of Physicists in Medicine. Both organizations have clear standards for resolution, noise, viewing angles, glare, color uniformity, distortion, reflections, luminance response, and luminance uniformity.

The certification process to these standards is cumbersome and expensive. Device makers are reluctant to revise approved standards and demand long-term use of LCDs. Tuopuwei guarantees the life of TFT liquid crystal display modules, and the life of many color liquid crystal displays is more than ten years.