33‐1: Invited Paper: Metrological Challenges of Curved Displays

New display technologies and recent trends may also enter the vehicle industry and correspondingly demand adaptations or new solutions for their standardized, i.e. comparable optical characterization. Amongst these, curved displays are most likely to be adopted because curvature opens up the possibility of actually integrating the displays into a car’s interior design. Here, we explain the basic differences between planar and cylindrical display screens during measurement of lateral and directional uniformity of luminance and chromaticity for both, imaging light measurement devices (ILMD) and spot measurement devices. The metrological differences also influence established uniformity analyses as described in the Black Mura standard “Uniformity Measurement Standard for Displays” of the German car industry. In addition, this paper describes the effects of alternative measurement approaches including light field imaging.