Sparkle measurement setup table for different (BlackMURA complaint) LMK systems
LMK Display Sparkle – High-Precision Measurement of Anti-Glare and Sparkle Effects
Standard-compliant evaluation of high-frequency display artifacts and anti-glare coatings in accordance with IEC 62977-3-9 and OEM specifications
What is Display Sparkle?
High-frequency visual disturbances such as Display Sparkle or DeepGreyMura impair the perceived uniformity of a display. These can be particularly pronounced with anti-glare coatings (AGL). Together with leading OEMs, TechnoTeam has therefore developed a standardized method for sparkle analysis that is now regarded as an industry benchmark.
Advantages & features at a glance
- IEC 62977-3-9 compliant and integrated into OEM specifications
- Sparkle measurement directly possible at any stage of development
- Full compatibility with all TechnoTeam LMK5 & LMK6 luminance cameras (from 16 mm lens)
- Reproducible results thanks to frequency filter & distance focus scan
- Live view & automatic alignment with BlackMURA methodology
READ THE TECHNICAL ARTICLE: MEASURING DISPLAY SPARKLE ACCORDING TO STANDARDS WITH TECHNOTEAM
Would you like to find out more about the precise evaluation of visual fine structures and anti-glare coatings? Then discover our technical article and its extended version. In it, we present our proven measurement methodology for IEC 62977-3-9-compliant sparkle analysis - developed in close cooperation with leading OEMs and already established as an industry standard.
Measuring principle & procedure
- Selection of the camera/lens combination and initial measuring distance
- Alignment using Live View and BlackMURA method
- Focusing directly on the display pixels (within the moiré area)
- Measurement of a green test image with luminance measurement camera (LMK)
- Automatic correction of unwanted influences (pixel structure, dust, moiré)
- Sparkle value is calculated in % in accordance with standards
Thanks to algorithmic frequency conversion, the results remain stable and comparable even with variable optical magnification.

Distance focus scan for optimum image sharpness
A special feature is the distance focus scan developed by TechnoTeam. This automatically determines the point of maximum sparkle sharpness - exactly where the sparkle effect is most strongly perceived by the human eye. This is done either via an optional motorized linear axis or manually. Alternatively, a LMK Position system can be used as well.

Typical curve of a distance-focus sparkle scan from LabSoft.
DISPLAY PACKAGE
This add-on is part of the display package add-on. It can be ordered separately or in combination with the other display add-ons.
The other display add-ons are linked below.
Publications
International Display Workshop (IDW 2022)
Journal of the Society for Information Display
International Conference on Display Technology (ICDT 2020)
International Display Workshop (IDW 2021)
- Type:
- Add-On
- Applications:
- Automotive Display
- Measurands:
- Light measurement
- Tasks:
- Development & Industry