The invention discloses an electromagnetic excitation
energy converter, a
laser projection optical sound screen, and a synchronous display method thereof, and relates to the technical field of the
image display and the
acoustics. A hard or flexible
laser projection optical screen is used as display and
sound production of a
sound production component, the electromagnetic excitation
energy converter is used for pushing the screen or an auxiliary
sound production board to vibrate the same, thereby forming an acoustic output; a low
pitch enhancing unit, a middle
pitch enhancing unit and
high pitch enhancing unit are further provided, and the graceful tone quality capable of covering the full frequency bands can be played through the
processing of a power
amplifier and a
frequency divider; andthe sound-picture synchronization technology can be achieved through a specific
algorithm and
software processing. Through the scheme disclosed by the invention, the
vibration amplitude of the screencan be controlled to be imperceptible by the
human eye while the screen is vibrated to excite the sound production, thereby guaranteeing that the display picture cannot be interfered, and a
laser projection optical sound screen
system scheme capable of displaying excellent picture and playing the beautiful sound is formed, the problem that the traditional box type sound group is large in volume,inconvenient for use, and separated in picture display and sound is solved, and the audio
visual experience demand of the user is satisfied.