Solar Cell Ambient Light Sensors For Electronic Devices
First Claim
1. An electronic device, comprising:
- a display;
an ambient light sensor attached to a portion of the display, wherein the ambient light sensor comprises at least one thin-film photovoltaic cell;
a flexible printed circuit having a first end that is attached to the at least one thin-film photovoltaic cell; and
control circuitry, wherein the flexible printed circuit has an opposing second end that is attached to the control circuitry.
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Accused Products
Abstract
An electronic device is provided with a display and a solar cell ambient light sensor that receives light through a portion of the display. The solar cell ambient light sensor may include one or more thin-film photovoltaic cells. A voltage that accumulates within the thin-film photovoltaic cell in response to ambient light is sampled and converted into ambient light data. The device includes control circuitry that modifies the intensity of display light generated by the display based on the ambient light data from the photovoltaic cell. The solar cell ambient light sensor is attached to a transparent cover layer, a color filter layer, or any other layer of the display. When the accumulated voltage is not being sampled for ambient light measurements, the voltage may be used to provide charge to a battery in the device.
58 Citations
27 Claims
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1. An electronic device, comprising:
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a display; an ambient light sensor attached to a portion of the display, wherein the ambient light sensor comprises at least one thin-film photovoltaic cell; a flexible printed circuit having a first end that is attached to the at least one thin-film photovoltaic cell; and control circuitry, wherein the flexible printed circuit has an opposing second end that is attached to the control circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electronic device, comprising:
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a display having a plurality of display layers; and a solar cell ambient light sensor attached to a selected one of the plurality of display layers, wherein the solar cell ambient light sensor receives ambient light through the selected one of the display layers. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An electronic device, comprising:
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a display having an active area that emits display light and an inactive area; and a photovoltaic light sensor attached to an interior surface of the display, wherein the photovoltaic light sensor receives light through the display and wherein the photovoltaic light sensor extends along the interior surface of the display in the entire active area of the display. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification