Display Content Exactly as Intended – Everywhere you go: ams OSRAM Showcases Behind OLED Spectral Color Sensing Technology

Shanghai, China, September 16, 2025 -ams OSRAM (SIX: AMS), a global leader in innovative light and sensor solutions today held a roundtable forum spotlighting new opportunities with high precision illumination characterization. The event brought together experts from industry, academia, and research institutions, along with professional photographers, exploring the future of color and brightness management in smartphone displays.

As OLED screens continue to gain momentum in the smartphone market, consumer expectations have evolved beyond basic metrics such as resolution and contrast toward adaptive, eye-friendly visual experiences that respond intelligently to ambient lighting. DXOMARK emphasized that displays should not be passive components-they actively shape the user experience. TÜV Rheinland has also raised the bar, integrating eye protection, dynamic performance, and ambient light adaptation into its certification criteria for screens.

Experience the Difference: adapting color for best user experience and eye comfort
Professor Wei Minchen of The Hong Kong Polytechnic University stated: "Outstanding display technology should be 'imperceptible to the eye, yet perceptible in experience.' Color reproduction goes beyond technical metrics-it is essential for healthy, natural viewing. Achieving authentic and consistent screen colors requires the synergy of hardware quality, factory calibration, ambient light adaptation, content mapping, and long-term stability. Only through careful optimization can we deliver the most comfortable and lifelike visual experience for users."

Liu Xiqiang, Regional General Manager of TÜV Rheinland's Electronics and Electrical Products Services in Greater China, stated: "To meet growing consumer demand for eye health, TÜV evaluates displays across three dimensions: eye protection technology, dynamic display performance, and ambient light management. ams OSRAM's Spectral Behind OLED technology delivers precise ambient light control, ensuring consistently comfortable viewing and setting a new benchmark for healthy displays in end devices."

Fabien Montagne, Product Marketing Specialist at DXOMARK, stated: "Display quality is paramount. Our research shows that smartphones with advanced color adaptation are crucial for user experience. ams OSRAM's innovative technology ensures accurate environmental illumination characterization, helping devices adapting dynamically to external factors such as ambient light and viewing conditions. Today, we are still very focused on the "camera signature", highlighting different strategic choices from manufacturers on exposure, color and others. Should this pave a way to "display signature"?"

Shi Xinyu, a photography blogger, shared how this technology elevates the user experience in real-world scenarios: "Photographers seek both authentic image reproduction and the right visual impact. A color-accurate smartphone not only helps creators capture light and shadow faithfully but also connects their work emotionally with the audience. ams OSRAM's under-display spectral technology allows screens to intelligently adapt to ambient light. This ensures a new level of replay consistency -benefiting the entire content ecosystem."

Precise Light Characterization driving the Future of Visual Experience
Through this roundtable forum, ams OSRAM showcased its leadership in high precision illumination characterization with its Spectral Behind OLED technology. By combining cutting-edge light-sensing innovation with deep user insights, ams OSRAM can support the display and smartphone industry together with academia, DXOMARK, and TÜV shifting from mere "specification competition" toward a new era of "user-experience centric" content replay engineering.

Marcel Knecht, Head of the ALS & Prox Product Line at ams OSRAM, commented: "Display quality is a key differentiator in high-end smartphones. Our ambient light sensing solutions dramatically improve the opportunities for precision of OLED display adaptation-helping manufacturers meet consumer expectations and gain a competitive edge."

Next generation technology highlights
Ams OSRAM's next-gen Behind OLED Spectral Sensing technology delivers:

• High-precision chromaticity data using proprietary filter technology-essential in complex lighting environments dominated by LED sources.
• Superior performance under low-transmissivity OLED displays (from ~3% to <1%) and wide field-of-view conditions.
• Robust ambient light sensing unaffected by high PWM dimming, thanks to fast data sampling and advanced algorithms.

Dalibor Stojkovic, Head of R&D at ams OSRAM's IOS Division, stated: "We've developed a suite of innovative technologies, spanning filter, optical, and sensor ICs. These advancements significantly enhance the measurement accuracy of ambient light sensors. In collaboration with industry-leading partners, ams OSRAM will apply these cutting-edge solutions to deliver both "color reproduction exactly as intended" and superior "eye comfort".