Recent development of the technique of contact screens and its applications to printing and optical image processing are discussed. The basic principle of the use of the contact screens is analyzed with some experimental results illustrating applications of the technique to non-linear image processing. In addition, the paper also describes how the newly invented contact screens can be applied to improve and simplify the picture printing process. We also describe our research plans on the employment of specitically designed contact screens to systematically simplify optical image communication and television broadcasting.