Modern digital imaging detectors have been implemented with scintillator screens as the key component. They capture neutrons and emit light, which is registered by suitable converts into the digital signal, used for analyses. The two established detector systems are either based on highly-efficient sensitive cameras or on amorphous silicon flat panels, which are in direct contact with the scintillator screen. Because the neutron beam intensity is quite low (e.g. compared to synchrotron light), it is essential to have scintillator screens with highest light emission per neutron. This property defines the efficiency of the detection process and the needed acquisition time for a valid image. On the other hand, highest spatial resolution is demanded in order to see smallest feature of a structure under investigation. In order to distinguish small contrast variation in the image data, a possible highest signal-to-noise-ratio is required. These conditions cannot however be satisfied in only one unique device at the same time. Although the principle neutron absorbers for the neutron detection and the most powerful light emitters have been known for many years, there is still potential for further improvements and optimization. Even exotic neutron absorbers and new scintillation materials are under investigation for the improvement of the scintillator screens, used in the neutron imaging detectors. Our report will summarize the current status of the development and describe the performance of common, commercialized materials. On the other hand, we will give the outlook for further approaches and first results of running developments.