Method for providing a liquid display displaying a pattern (20-29, 45-48, 58-62) • by selecting a pattern (20-29, 45-48, 58-62), • by generating an adjustable liquid stream (4, 35, 53, 67) defined by a boundary along its path, and • by emitting light rays (8, 79), in the form of two or more sequential light pulses with different light parameters by a first emitter, and light deflecting means (17-19, 39-43, 60-62, 82), such as gas bubbles or particles in the form of packets, by a second emitter, into said liquid stream (4, 35, 53, 67) along its path and depending on the selected pattern (20-29, 45-48, 58-62) such that each light ray (8, 79) within the liquid stream (4, 35, 53, 67) is guided by total reflection at the boundary of said liquid stream (4, 35, 53, 67) until impacting said light deflecting means (17-19, 39-43, 60-62, 82) by which the light ray (8, 79) is deflected in order to leave the liquid stream (4, 35, 53, 67) as deflected light rays, and that the deflected light rays form the selected pattern (20-29, 45-48, 58-62) to be observed by an onlooker, characterized in that the colors, intensity, emission frequency and time length of the light rays (8, 79), as well as the emission and the kind of the deflecting means (17-19, 39-43, 60-62, 82) are determined and the emission frequency of the emitted light deflecting means (17-19, 39-43, 60-62, 82) is tuned to the emission frequency of the emitted pulses of light rays (8, 79), or, vice versa, the emission frequency of the emitted pulses of light rays (8, 79) is tuned to the emission frequency of the emitted light deflecting means (17-19, 39-43, 60-62, 82), such that cinematographic light effects are created by displaying the pattern as a stationary pattern or as a pattern moving upstream inside the liquid stream. • by selecting a pattern (20-29, 45-48, 58-62), • by generating an adjustable liquid stream (4, 35, 53, 67) defined by a boundary along its path, and • by emitting light rays (8, 79), in the form of two or more sequential light pulses with different light parameters by a first emitter, and light deflecting means (17-19, 39-43, 60-62, 82), such as gas bubbles or particles in the form of packets, by a second emitter, into said liquid stream (4, 35, 53, 67) along its path and depending on the selected pattern (20-29, 45-48, 58-62) such that each light ray (8, 79) within the liquid stream (4, 35, 53, 67) is guided by total reflection at the boundary of said liquid stream (4, 35, 53, 67) until impacting said light deflecting means (17-19, 39-43, 60-62, 82) by which the light ray (8, 79) is deflected in order to leave the liquid stream (4, 35, 53, 67) as deflected light rays, and that the deflected light rays form the selected pattern (20-29, 45-48, 58-62) to be observed by an onlooker, characterized in that the colors, intensity, emission frequency and time length of the light rays (8, 79), as well as the emission and the kind of the deflecting means (17-19, 39-43, 60-62, 82) are determined and the emission frequency of the emitted light deflecting means (17-19, 39-43, 60-62, 82) is tuned to the emission frequency of the emitted pulses of light rays (8, 79), or, vice versa, the emission frequency of the emitted pulses of light rays (8, 79) is tuned to the emission frequency of the emitted light deflecting means (17-19, 39-43, 60-62, 82), such that cinematographic light effects are created by displaying the pattern as a stationary pattern or as a pattern moving upstream inside the liquid stream.