Gerhard-Multhaupt, R.R.Gerhard-Multhaupt2022-03-082022-03-081990https://publica.fraunhofer.de/handle/publica/318138After an introduction, in which liquid crystal and electron beam addressed light-valve projectors are briefly reviewed, the main light-valve technologies are explained in some detail. Transmissive and reflective liquid-crystal light valves with various types of addressing are described first; the trend toward active-matrix addressing and high resolution is demonstrated. Commercial light-valve projectors with electro-optic and oil-film control layers are briefly introduced before more recently developed technologies such as metallised viscoelastic layers, deformable micromechanical mirrors, and polymer-encapsulated liquid crystals are discussed. Finally, in view of its importance for the field, some aspects of active-matrix addressing are briefly examined.encathode-ray tube displayscolour television receiverselectro-optical deviceshigh definition televisionliquid crystal displaysoptical projectorstransmissive light valvescolour tv receiverselectro-optic control layerscrt displaysHDTVelectron beam addressedreflective liquid-crystal light valvesactive-matrix addressinghigh resolutionlight-valve projectorsoil-film control layersmetallised viscoelastic layersdeformable micromechanical mirrorspolymer-encapsulated liquid crystals621conference paper