THIN FILM SPEAKER OF TELEVISION

摘要

PURPOSE: A thin film speaker of a television is provided to easily change the capacitance of a speaker based on the circuit arrangement on a vibration plate as well as to eliminate limits on component array of a television by minimizing an installation space of the speaker. CONSTITUTION: An electrode(5) is formed on the upper end of a vibration plate(4) to be connected with a magnetic circuit(1) electrically. Plural magnetic circuits(2) are sequentially connected to the magnetic circuit(1) through a coil(7). The last magnetic circuit(2) is connected to an electrode to form a single thin film transistor. The magnetic circuit(1) is connected to an electrode(5) so a voice coil(6) as to be reduced to have an interval. The magnetic circuit is also connected with the coil(7) on the rear surface of the vibration plate(4). The end of the coil has the same rotational direction as the magnetic circuit(1), and a voice coil(8) is formed on the upper surface of the vibration plate. The magnetic circuits(1,2) are formed in series or in a row to make sounds from a speaker and transformed in each direction of the vibration plate based on the array.