According to example embodiments, charging of a wireless device includes using a time-displaying power source system to transmit electrical power to a wireless receiver by inductive electrical power transfer.

A smart watch having a display changing in color according to a state of a user, the smart watch includes: an output unit having a display unit; a sensor unit collecting state information for a measurement target associated with a user or around the user; and a control unit comparing the collected state information with state combination information stored in advance, selecting one piece of combination information that corresponds to the state information from among the state combination information, and controlling the output unit so as to output a displayed color matching the selected combination information.

A smart watch having a display changing in color according to a state of a user, the smart watch includes: an output unit having a display unit; a sensor unit collecting state information for a measurement target associated with a user or around the user; and a control unit comparing the collected state information with state combination information stored in advance, selecting one piece of combination information that corresponds to the state information from among the state combination information, and controlling the output unit so as to output a displayed color matching the selected combination information.

A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, and the display unit is configured to display an image and includes pixels.

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.

A wearable device receives user configuration data that provides user-specific information for stored use cases and generates a personalized use case database based on the stored use cases and the user-specific information. The wearable device obtains location, sensor, time, and peripheral state data and detects a meaningful change in a most recent data instance of the location, sensor, time, or peripheral state data over an earlier data instance of the location, sensor, time, and peripheral state data. The wearable device determines if the most recent data instance corresponds to a particular use case in the personalized use case database; presents on a display a new home-screen experience, including multiple application user interfaces for the particular use case, when the most recent data instance corresponds to the particular use case; and changes a hardware state to enable use of the multiple application user interfaces in the new home-screen experience.

A wearable apparatus, including: a mounting component, configured to hold a relationship between relative positions of the wearable apparatus and its user; a folding panel mounted on the mounting component, the folding panel including at least two display screens interconnected at a joint where sensors are disposed; and a controller signal connected with individual display screens and the sensors respectively, the controller being configured to control corresponding display screens to turn on or turn off based on the state of the folding panel detected by the sensors. The state of the folding panel in the wearable apparatus can be adjusted according to the needs of a user and thereby the usage needs of the user can be satisfied.

A solar panel is provided on a visible side of a display panel and includes a transmissive area, a power generator and an anti-reflector. The transmissive area transmits light. The power generator generates electric power from light. The anti-reflector is provided on a display-panel-facing surface of the power generator to prevent reflection of light on the power generator. The display-panel-facing surface of the power generator faces the display panel. The light, the reflection of which is prevented by the anti-reflector, is among light having passed through the transmissive area and been reflected by the display panel.

A solar panel is provided on a visible side of a display panel and includes a transmissive area, a power generator and an anti-reflector. The transmissive area transmits light. The power generator generates electric power from light. The anti-reflector is provided on a display-panel-facing surface of the power generator to prevent reflection of light on the power generator. The display-panel-facing surface of the power generator faces the display panel. The light, the reflection of which is prevented by the anti-reflector, is among light having passed through the transmissive area and been reflected by the display panel.

An electronic device has a reception device; a display device; an input device; a display controller that controls the display device to display the set time zone data when a first operation of the input device instructing displaying time zone data is detected; a positioning driver that operates the reception device to run a reception process and acquire positioning information when a second operation of the input device instructing starting reception in the navigation mode is detected while time zone data is displayed on the display device; and a time zone setter that sets time zone data based on the acquired positioning information.