Display technologies such as OLED or MicroLED are constantly improving. They have for instance an outstanding contrast and a large color gamut. Through constant improvements, they are being used in more and more applications, e.g. in televisions, in smartphones and in vehicles and in microdisplays. However, in order to be able to guarantee the high quality of these displays, very special measurement applications have to be carried out in addition to standard measurement tasks, e.g. luminance or color over angle. One reason for this is that, in contrast to LCDs, each display pixel acts as its own light source. In other words, there is neither a global nor a local backlighting unit.
> OUR SOLUTION:
Our hard- and software solutions can be used for all standard and specific OLED, LED, and MicroLED-Display measurement tasks. For quality assurance the following LabSoft add-ons can be used:
- Image sticking (vanishing ghost images and permanent Burn-In)
- Sparkle (high-frequency non-uniformity evaluation such as DeepGreyMura or graininess)
- BlackMURA (low-frequency non-uniformity evaluation)
- Conoscopic contrast measurement (low-frequency non-uniformity over angle)
- Reflection measurements (e.g. diffractive components in polarizer-free OLEDs)
Furthermore, our specialized DeMURA workflow delivers pixel-level luminance and chromaticity correction for production lines — particularly relevant for OLED and MicroLED panels, where dense subpixel structures and Moiré effects make conventional pixel-level capture challenging.
