Provided is an electronic apparatus in which an illuminance sensor is arranged on the back side of a display unit, and which can perform the appropriate luminance adjustment. The electronic apparatus includes a display unit, an illuminance sensor, a luminance control unit, and an operation judgement unit. The illuminance sensor is disposed on back side of the display surface of the display unit. The luminance control unit controls the luminance of the display unit based on the information related to light detected by the illuminance sensor. The operation judgement unit judges reliability of the information related to light detected by the illuminance sensor. The luminance control unit controls the luminance of the display unit when reliability is judged to be high. The luminance control unit suppresses control of the luminance of the display unit when reliability is judged to be low.

Systems and methods to create a customized watch face and retrieve the watch face to be displayed are disclosed. Exemplary implementations may effectuate presentation of a selection interface; receive a mint request to mint the watch face in accordance with a watch face design; effectuate a transfer of consideration from a user wallet to an administrative wallet; mint the watch face; transfer a non-fungible token to the user wallet; receive a display request to display the watch face on a watch screen; determine whether the user wallet holds a non-fungible token associated with the watch face; responsive to the user wallet holding the non-fungible token, facilitate display of the watch face on the watch screen; responsive to the user wallet not holding the non-fungible token, take no action to facilitate display of the watch face on the watch screen; and/or perform other operations.

Provided herein is an electronic device. In certain embodiment, the electronic device may comprise: a housing; a cover disposed on at least a portion of the housing; at least one fastening member connected to the housing and configured to be detachably fastened around a human body; at least one light emitting structure disposed in an internal space of the housing; and a waterproof member that is between the housing and the cover, having a closed loop shape sealing the internal space, wherein the waterproof member comprises light scattering material, wherein the light emitting structure is configured to emit light that is at least partially visible from outside through the waterproof member.

Systems and methods to create a customized watch face and retrieve the watch face to be displayed are disclosed. Exemplary implementations may effectuate presentation of a selection interface; receive a mint request to mint the watch face in accordance with a watch face design; effectuate a transfer of consideration from a user wallet to an administrative wallet; mint the watch face; transfer a non-fungible token to the user wallet; receive a display request to display the watch face on a watch screen; determine whether the user wallet holds a non-fungible token associated with the watch face; responsive to the user wallet holding the non-fungible token, facilitate display of the watch face on the watch screen; responsive to the user wallet not holding the non-fungible token, take no action to facilitate display of the watch face on the watch screen; and/or perform other operations.

An electronic apparatus includes: a display; a light sensor located on an opposite side of a display surface of the display, and detects intensity of ambient light; and a control unit, in a first state in which luminous intensity of the display is not less than a first threshold, in the case where the intensity of ambient light detected by the light sensor is less than predetermined intensity of light, outputs, to the display, a signal to reduce the luminous intensity of the display to a second state that is not more than a second threshold that is less than the first threshold, and in the second state, outputs a signal to detect the intensity of ambient light to the light sensor.

Provided is an electronic apparatus in which an illuminance sensor is arranged on the back side of a display unit, and which can perform the appropriate luminance adjustment. The electronic apparatus includes a display unit, an illuminance sensor, a luminance control unit, and an operation judgement unit. The illuminance sensor is disposed on back side of the display surface of the display unit. The luminance control unit controls the luminance of the display unit based on the information related to light detected by the illuminance sensor. The operation judgement unit judges reliability of the information related to light detected by the illuminance sensor. The luminance control unit controls the luminance of the display unit when reliability is judged to be high. The luminance control unit suppresses control of the luminance of the display unit when reliability is judged to be low.

An electronic device comprises a body and a band being able to attach the body to a part of a human body. The body comprises first and second detectors and at least one processor. The first detector detects illuminance on an upper surface of the body. The second detector is located in a position distant from a position of the first detector in a short-side direction of the band and detects the illuminance on the upper surface of the body. The at least one processor executes predetermined processing if the at least one processor determines that at least one of first illuminance detected by the first detector and second illuminance detected by the second detector changes.

The present invention is directed to devices that may be used to help young children stay in bed or their room until it is time to get up. The device may be configured as a clock. The clock may be programmable to have a duration of a nap time, or a time when the child is able to get up. A visual countdown timer may be provided with the device (e.g., on the clock face), which may include a graphical representation of the remaining fraction of time before get up time. The visual countdown timer may not include number indicia, but rather includes a graphic (e.g., ring extending about the perimeter of the clock face), which gradually diminishes as the predetermined get up time is approached. A reward drawer may also be provided, which automatically unlocks at the get up time, and provides the child with a prize.

An electronic apparatus includes: a display; a light sensor located on an opposite side of a display surface of the display, and detects intensity of ambient light; and a control unit, in a first state in which luminous intensity of the display is not less than a first threshold, in the case where the intensity of ambient light detected by the light sensor is less than predetermined intensity of light, outputs, to the display, a signal to reduce the luminous intensity of the display to a second state that is not more than a second threshold that is less than the first threshold, and in the second state, outputs a signal to detect the intensity of ambient light to the light sensor.

A decorative analog clock with an electro-optical sensor configured to control a hidden digital-time display that is only visible when ambient light detected by the electro-optical sensor drops below a threshold.