The DIGISTONE prototype was  assessed by questions on four parameters; brightness, white balance, appeareance  of movies and readability of text. The  assessment was based on a questionnaire asking test persons to review different projected images.

Quality Assessment


The results from the test showed that brightness stability is good for all three colors, only varying les than 10%. This proves precise interface between concrete and LED. Appearance of movies is good. The DIGISTONE displays the content clearly with an overall good quality. Readability of text is very good and moving text does not seem to be an advantage. 

Overall the assessment can conclude that the developed Digistone screen works sufficiently to display movies, images and text. The assessment also represents the beginning of a design guide or design specifications for this future display technology.