Abstract: According to one embodiment, an image displaying apparatus includes a plurality of keys provided for respective items to operate the image displaying apparatus, and a first light source configured to illuminate the plurality of keys, wherein the image displaying apparatus turns on the first light source when one of the plurality of keys is operated without making the key operation valid, turns off the first light source when one of the plurality of keys is operated in a preset period after a preceding key operation is performed and makes the key operation valid.

Abstract: According to one embodiment, an image displaying apparatus includes a plurality of keys provided for respective items to operate the image displaying apparatus, and a first light source configured to illuminate the plurality of keys, wherein the image displaying apparatus turns on the first light source when one of the plurality of keys is operated without making the key operation valid, turns off the first light source when one of the plurality of keys is operated in a preset period after a preceding key operation is performed and makes the key operation valid.

Abstract: When the main power supply is turned off, the power supply of a video display unit is turned off and the audio signal is muted. At the same time, a time counting unit counts time, and before reaching a predetermined time, a display unit is lighted to notify a quick restart period. In the case where the main power supply is turned on during the predetermined time, the power supply of the video display unit is turned on to cancel the audio mute mode. In the case where the main power is not turned on upon lapse of the predetermined time, the power supply of the receiving unit is also turned off.

Abstract: A digital television broadcasting reception device contained in a broadcasting reception system has a function for receiving selectively digital broadcasting by means of antennas and tuners, and a function for connecting external instruments through a variety of interfaces. A control section controls the whole system. A timer section of an automatically acting type sets up a time wherein the time can be updated based on time information contained in digital broadcasting or a manual operation of a user. The timer section is backed up by a backup power supply, so that when its main power supply is turned off, no time information disappears. Thus, a time can be always indicated even in case where no time information can be obtained from digital broadcasting at the time reenergization.

Abstract: A digital television broadcasting reception device contained in a broadcasting reception system has a function for receiving selectively digital broadcasting by means of antennas and tuners, and a function for connecting external instruments through a variety of interfaces. A control section controls the whole system. A timer section of an automatically acting type sets up a time based on time information contained in digital broadcasting, besides a time can be obtained also from Internet through a communication I/F, or time information obtained by a manual operation of a user with a remote controller in the case when digital broadcasting cannot be received.

Abstract: When the main power supply is turned off, the power supply of a video display unit is turned off and the audio signal is muted. At the same time, a time counting unit counts time, and before reaching a predetermined time, a display unit is lighted to notify a quick restart period. In the case where the main power supply is turned on during the predetermined time, the power supply of the video display unit is turned on to cancel the audio mute mode. In the case where the main power is not turned on upon lapse of the predetermined time, the power supply of the receiving unit is also turned off.

Abstract: A television receiver including a liquid crystal display (LCD) panel. When a signal generated by operating a power supply key on a remote controller is received, video and audio are muted, a backlight of the LCD panel is turned off, and a power supply to the LCD panel is turned off. The voltage of the power supply to the LCD panel is monitored. When the voltage is equal to or lower than a predetermined value, the power supply of the whole receiver is turned off. When the power supply key on the remote controller is operated before the voltage supplied to the LCD panel is equal to or lower than the predetermined value, the video and audio mute mode is canceled, the backlight of the LCD panel is turned on, and the power supply to the LCD panel is turned on.