Display system for wirelessly supplying power

A display system comprising:

• a speaker;
• a display;
• and
• a wireless power transmitter configured to convert power supplied from a power source circuit into a first magnetic field and to transmit a first power signal to the speaker,
• wherein the speaker includes a first wireless power reception circuit configured to convert the first power signal received from the wireless power transmitter into a first current;
• a distribution circuit configured to distribute power received through the first power signal to a sound output circuit and a first wireless power transmission circuit by distributing the first current and outputting a second current;
• the sound output circuit configured to output sound using a first power distributed by the distribution circuit;
• and the first wireless power transmission circuit configured to convert a second power distributed by the distribution circuit into a second magnetic field to transmit a second power signal to a display,
• wherein the display includes a second wireless power reception circuit configured to convert the second power signal received from the speaker into a third current;
• and an image output circuit configured to output an image by using power transferred through the third current,
• wherein the wireless power transmitter includes a first coil,
• wherein the speaker includes a second coil, a third coil, and a fourth coil,
• wherein the display includes a fifth coil, and a sixth coil,
• wherein a phase difference between a first electromagnetic interference (EMI) signal which is generated by the first coil, and a third EMI signal which is generated by the third coil corresponds to 180 degrees,
• wherein a phase difference between the first EMI signal, and a fourth EMI signal which is generated by the fourth coil corresponds to 180 degrees,
• wherein a phase difference between a second EMI signal which is generated by the second coil, and a fifth EMI signal which is generated by the fifth coil corresponds to 180 degrees, and
• wherein a phase difference between the second EMI signal, and a sixth EMI signal which is generated by the sixth coil corresponds to 180 degrees.