Patent ID: 11902699
Assignee: CASIO COMPUTER CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A display device comprising:
a power key; and
at least one processor that is configured to:
detect a user operation of the power key in a state in which a light source is not turned on;
turn on the light source in response to detecting the user operation of the power key;
after turning on the light source and in response to detecting the user operation of the power key, determine whether a power supply supplying power is a battery power supply or an external commercial power supply;
display, in response to detecting the user operation of the power key and in response to a determination that the power supply supplying power is the battery power supply, a power-on continuation confirmation screen to prompt a user to enter a confirmation operation to continue lighting the light source;
detect whether a user enters the confirmation operation to continue lighting the light source; and
continue, in response to detecting the confirmation operation from the user, lighting of the light source,

wherein the at least one processor is further configured to, in response to a determination that the power supply supplying power is the external commercial power supply, skip the display of the power-on continuation confirmation screen and continue the lighting of the light source.