Display with integrated photovoltaics
First Claim
Patent Images
1. A display device displaying an image toward a front side, with a back side opposite the front side, the display device comprising:
- a reflective interferometric modulator display comprising an array region having a front side and a back side, the array region including active pixel areas and inactive areas, wherein the active pixel areas comprise reflective electromechanical systems devices;
a photovoltaic cell including a photovoltaic material, wherein the photovoltaic material is formed over one of the front side and the back side of the array region, and wherein the photovoltaic material is patterned to correspond to a pattern of at least some of the inactive areas, the pattern including inactive areas separating adjacent active pixel areas; and
a power supply, wherein the photovoltaic cell is configured to provide power to the power supply.
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Abstract
A display with patterned photovoltaic (PV) material integrated on the front side and/or back side of the display is disclosed. Light may reach PV material situated behind a display through fully or partially transmissive features or gaps within the display. Display-generated light may also reach PV material behind a display. A patterned PV material situated in front of a display may collect both ambient light as well as display-generated light.
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Citations
28 Claims
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1. A display device displaying an image toward a front side, with a back side opposite the front side, the display device comprising:
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a reflective interferometric modulator display comprising an array region having a front side and a back side, the array region including active pixel areas and inactive areas, wherein the active pixel areas comprise reflective electromechanical systems devices; a photovoltaic cell including a photovoltaic material, wherein the photovoltaic material is formed over one of the front side and the back side of the array region, and wherein the photovoltaic material is patterned to correspond to a pattern of at least some of the inactive areas, the pattern including inactive areas separating adjacent active pixel areas; and a power supply, wherein the photovoltaic cell is configured to provide power to the power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A display device displaying an image toward a front side, with a back side opposite the front side, the display device comprising:
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a display comprising an array region having a front side and a back side, the array region comprising active pixel areas and inactive areas, wherein the active pixel areas comprise reflective electromechanical systems devices; a photovoltaic cell comprising a photovoltaic material, wherein the photovoltaic material is formed over one of the front side and the back side of the array region, and wherein the photovoltaic material is patterned; and a transparent conducting film in electrical contact with the photovoltaic material; wherein the photovoltaic material further serves as a black mask to reduce reflections in the inactive areas of the array region; wherein the photovoltaic material is configured to reflect or transmit less than 10% of visible light incident upon the photovoltaic material; and wherein the photovoltaic material is capable of receiving light from both the front and back sides of the photovoltaic material. - View Dependent Claims (22, 23, 24)
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25. A method of manufacturing a display device, the display device configured to display an image toward a front side, with a back side opposite the front side, the method comprising:
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providing a reflective interferometric modulator display including an array region, the array region including active pixel areas and inactive areas, wherein the active pixel areas comprise reflective microelectromechanical systems (MEMS) devices; disposing a photovoltaic material over one of the front side and the back side of the array region, patterning the photovoltaic material to correspond to a pattern of at least some of the inactive areas, the pattern including inactive areas separating adjacent active pixel areas; and a power supply, wherein the photovoltaic material is configured to provide power to the power supply. - View Dependent Claims (26)
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27. A display device displaying an image toward a front side, with a back side opposite the front side, the display device comprising:
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a reflective interferometric modulator display including an array region, the array region including active pixel areas and inactive areas, wherein the active pixel areas comprise reflective electromechanical systems devices; a photovoltaic cell including a photovoltaic material, wherein the photovoltaic material is formed over the back side of the array region, and wherein the photovoltaic material is patterned to correspond to a pattern of at least some of the inactive areas, the pattern including inactive areas separating adjacent active pixel areas; and a power supply, wherein the photovoltaic cell is configured to provide power to the power supply. - View Dependent Claims (28)
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Specification