Circadian Friendly Certification for Display Products
Understanding Circadian-Friendly Technology
The circadian rhythm is a natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours. It's influenced by environmental cues, especially light, and affects various bodily functions including metabolism, alertness, and the sleep cycle. In our digital world, it's essential to recognize not just the immediate impacts of screen use—such as glare and flicker—but also how these devices can affect our circadian rhythms. Digital displays emit light across different spectrums, intensities, and color temperatures, which can interfere with the production of melatonin, the hormone that regulates sleep. This interference can disrupt our natural sleep patterns and may contribute to changes in mood, cognitive function, and overall energy levels.
The Importance of Circadian
Scientific studies have established a quantitative connection between the light our eyes absorb and the suppression of melatonin, a hormone pivotal to our sleep-wake cycle. This crucial finding has given rise to innovative metrics like Circadian Light (CLA) and Circadian Stimulation (CS). These metrics are designed to measure the influence of light exposure on our circadian rhythm, providing a deeper understanding of how light affects our natural body clock. Understanding and applying these insights is key to fostering environments that support healthy circadian rhythms, contributing to better sleep and overall well-being.
Make it possible in your products
TÜV Rheinland has crafted certification standards for circadian-friendly products, establishing a testing catalog that assesses factors like illuminance, spectrum, light intensity, and color temperature (CCT). These standards set forth circadian stimulation (CS) requirements for different times of the day, aiming to replicate the characteristics of natural light and enhance the user experience. Products that achieve circadian-friendly certification demonstrate compliance with TÜV Rheinland's testing criteria, ensuring they support the natural circadian rhythm.
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