Positioning and control of nozzles and water particles in decorative water curtain and water screens

LED and LCD displays, laser show devices and animators, musical fountains, water curtains and artificial waterfalls, etc., are decorative instruments. Some of them were developed for intelligent pouring of water droplets as particles in a space (particle screen). They have nozzles in the line that generates pattern with programmed on or off of its valves. This article introduces an improvement of water curtain (waving pouring water) and water screen (stenciled water screen by use of on-off valves), and combines them together.