There is provided a solar panel including: a plurality of solar cells each of which is formed in a belt-shape extending in a predetermined direction on a plate-shaped surface and which is disposed in rows in a cell-width direction perpendicular to an extending direction of the plurality of solar cells; and a partition area that divides the plurality of solar cells from each other. The plurality of solar cells has, across at least two of the plurality of solar cells, a transparent power generation area which corresponds at least to a visible area seen from an outside and in which a power generation area and a transparent area that transmits light are alternately disposed and extend in the extending direction. In the transparent power generation area, the partition area is formed in a belt-shape having a width equal to a width of the transparent area.

There is provided a solar panel including: a plurality of solar cells each of which is formed in a belt-shape extending in a predetermined direction on a plate-shaped surface and which is disposed in rows in a cell-width direction perpendicular to an extending direction of the plurality of solar cells; and a partition area that divides the plurality of solar cells from each other. The plurality of solar cells has, across at least two of the plurality of solar cells, a transparent power generation area which corresponds at least to a visible area seen from an outside and in which a power generation area and a transparent area that transmits light are alternately disposed and extend in the extending direction. In the transparent power generation area, the partition area is formed in a belt-shape having a width equal to a width of the transparent area.

An electronic device includes a dial, a module and a solar panel. The module is arranged under the dial and including a circular polarization antenna which includes a power feed point and a radiating electrode. The solar panel is arranged between the dial and the module and has an area corresponding to an area of the dial in a face direction thereof. The solar panel is constituted by a plurality of solar cells including a solar cell that has a light receiving surface arranged at a position corresponding to the radiating electrode.

An electronic device includes a dial, a module and a solar panel. The module is arranged under the dial and including a circular polarization antenna which includes a power feed point and a radiating electrode. The solar panel is arranged between the dial and the module and has an area corresponding to an area of the dial in a face direction thereof. The solar panel is constituted by a plurality of solar cells including a solar cell that has a light receiving surface arranged at a position corresponding to the radiating electrode.

Systems and methods for generating electrical current from at least one photovoltaic cell is described herein. The photovoltaic cell may be disposed over a display of an electronic device. The photovoltaic cell may comprise first and second conductive layers and a photovoltaic layer. The first conductive layer may be etched such that a width of the metal layer is less than a width of the photovoltaic layer providing visibility to the display disposed below. In some embodiments, a capacitive touch sensor is disposed between the metal layer and the absorber layer for providing interaction with a user.

Systems and methods for generating electrical current from at least one photovoltaic cell is described herein. The photovoltaic cell may be disposed over a display of an electronic device. The photovoltaic cell may comprise first and second conductive layers and a photovoltaic layer. The first conductive layer may be etched such that a width of the metal layer is less than a width of the photovoltaic layer providing visibility to the display disposed below. In some embodiments, a capacitive touch sensor is disposed between the metal layer and the absorber layer for providing interaction with a user.

A satellite signal receiving device having a receiver circuit that receives a satellite signal transmitted from a positioning information satellite further includes a solar cell that converts light energy to electrical energy; a generating state detection circuit that detects a generating state of the solar cell to obtain a detection value, which is a power generating evaluation time, which is a time during which the solar cell output is continuously in a high illuminance state; and a control circuit that controls the receiver circuit and the generating state detection circuit, sets a threshold value for the power generating evaluation time, and compares the detection value with the threshold value and operates the receiver circuit when the detection value is greater than or equal to the threshold value. The control circuit changes the threshold value for the power generating evaluation time when satellite signal reception failed.

A satellite signal receiving device having a receiver circuit that receives a satellite signal transmitted from a positioning information satellite further includes a solar cell that converts light energy to electrical energy; a generating state detection circuit that detects a generating state of the solar cell to obtain a detection value, which is a power generating evaluation time, which is a time during which the solar cell output is continuously in a high illuminance state; and a control circuit that controls the receiver circuit and the generating state detection circuit, sets a threshold value for the power generating evaluation time, and compares the detection value with the threshold value and operates the receiver circuit when the detection value is greater than or equal to the threshold value. The control circuit changes the threshold value for the power generating evaluation time when satellite signal reception failed.

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.

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.