Samsung Display said on the 22nd that it recently completed Quantum View verification by UL Solutions, a global safety science company, for its quantum dot (QD)-organic light-emitting diode (OLED) panels for TVs and monitors.
Quantum View is an evaluation that verifies viewing-angle characteristics by measuring changes in a display's luminance and color coordinates depending on where it is viewed (assessed by moving 10 degrees at a time from the front, up to 60 degrees). Samsung Display said that when it evaluated all QD-OLED products, luminance retention at a 60-degree side angle was at least 60% compared with the front, and the color coordinate shift was 0.012 or less. For typical LCDs, luminance retention falls to 20% or less at a 60-degree viewing angle, and the color coordinate shift reaches up to 0.025, roughly double that of QD-OLED.
A Samsung Display official said, "With multiple people watching together in a living room and consumers preferring large screens, viewing angle has long been an important factor in choosing a TV," adding, "Recently, as more people use dual or triple monitors or professional reference monitors, and usage patterns change—such as multiple people checking a shared project on a single monitor—demand for wide-viewing-angle QD-OLED monitors is also increasing."
Samsung Display explained that the viewing-angle characteristics of its QD-OLED stem from its proprietary top-emission structure and the Lambertian emission of quantum dot materials. In general, light travels in straight lines, so brightness and color vary with viewing angle, but Lambertian emission radiates light uniformly in all directions, appearing equally bright regardless of viewing angle.
The company said, "In QD-OLED, quantum dots absorb blue OLED light and re-emit it at red and green wavelengths. At this time, quantum dots—ultrafine particles on the nanometer scale—not only convert color but also exhibit a Lambertian emission pattern in which light forms a sphere and spreads widely," adding, "Unlike other large OLED technologies, because QD pixels directly produce vivid, high-purity colors at the top, both color accuracy and luminous efficiency can be improved."
Leveraging this QD-OLED, Samsung Display is expanding its business not only to consumers (B2C) but also into the business-to-business (B2B) space, where demand is high for high-precision displays. Recently, Asus and Dell Technologies released creator-grade professional monitors equipped with QD-OLED. Acer, Lenovo and MSI also plan to introduce professional monitor lineups.
Jung Yong-uk, head of strategy and marketing at Samsung Display (executive director), said, "Through 'Quantum View' verification, we have objectively proven that QD-OLED is a technology that can deliver consistent picture quality across diverse viewing environments," adding, "With QD-OLEDs that combine excellent color reproduction and wide viewing angles, we will work with global brands to provide consumers with the best viewing experience large displays can offer."