Abstract: A headphone includes a pad which is brought into contact with a human head, an enclosure which outputs an audio, and a dome as means for adjusting quality of the audio output by resonating or absorbing the sound wave emitted from the enclosure. The dome has no parts other than those used for absorbing and reflecting audio and is almost hollow. In the dome is arranged a circuit substrate by using a circuit support part having a shape not blocking the air flowing in the dome. Such a circuit substrate is also built in the other headphone. The circuit substrates arranged in the dome of the headphone are connected by a cable arranged inside a head band or an FPC for transmission of a signal and power supply. Thus, it is possible to provide an output device which can solve the problem of the dimensions for containing operation processing devices and the problem of heat dissipation.

Abstract: A headphone (3) includes a pad (31) which is brought into contact with a human head, an enclosure (32) which outputs an audio, and a dome (33) as means for adjusting quality of the audio output by resonating or absorbing the sound wave emitted from the enclosure. The dome (33) has no parts other than those used for absorbing and reflecting audio and is almost hollow. In the dome (33) is arranged a circuit substrate (35) by using a circuit support part (34) having a shape not blocking the air flowing in the dome. Such a circuit substrate is also built in the other headphone. The circuit substrates arranged in the dome (33) of the headphone are connected by a cable arranged inside a head band (4) or an FPC for transmission of a signal and power supply. Thus, it is possible to provide an output device which can solve the problem of the dimensions for containing operation processing devices and the problem of heat dissipation.

Abstract: 11 indicates the image that is originally to be displayed; this image is displayed over the entire display area surrounded by the square frame 12. The image control part has the function of reducing and displaying this entire image centered on the center of the image. The reduced image that is reduced and displayed is indicated by 13. The image control part 9 displays the reduced image 13 in the initial stage of use of the head-mounted display; then, as the use frequency or use time of the head-mounted display (the selection of which of these is used is determined by the switch of the operating part) that is input from the input control part increases, the reduction ratio of the reduced image 13 is reduced so that the size of the image is increased, and the image 11 that is originally to be displayed is displayed after a specified use frequency or specified use time is reached.