DISPLAY INTEGRATED PHOTODIODE MATRIX
First Claim
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1. A proximity sensing panel, comprising:
- a plurality of transmitters disposed throughout the proximity sensing panel and configured to emit radiation from a front surface of the proximity sensing panel; and
a plurality of receivers disposed throughout the proximity sensing panel, each receiver configured to receive radiation emitted by one or more of the plurality of transmitters.
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Accused Products
Abstract
The use of one or more proximity sensors alone or in combination with one or more touch sensors in a multi-touch panel to detect the presence of a finger, body part or other object and control or trigger one or more functions in accordance with an “image” of touch provided by the sensor outputs is disclosed. In some embodiments, one or more infrared (IR) proximity sensors can be driven with a specific stimulation frequency and emit IR light from one or more areas, which can in some embodiments correspond to “pixel” locations. The reflected IR signal, if any, can be demodulated using synchronous demodulation.
358 Citations
45 Claims
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1. A proximity sensing panel, comprising:
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a plurality of transmitters disposed throughout the proximity sensing panel and configured to emit radiation from a front surface of the proximity sensing panel; and a plurality of receivers disposed throughout the proximity sensing panel, each receiver configured to receive radiation emitted by one or more of the plurality of transmitters. - View Dependent Claims (2, 3, 4, 5)
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6. A proximity sensing display comprising a semiconductor layer, the semiconductor layer comprising:
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a plurality of picture element (pixel) cells configured to emit or control visible light for displaying images at the display; a plurality of transmitters configured to emit radiation for proximity sensing; and a plurality of receivers configured to receive radiation emitted from the IR transmitters and reflected by an object in proximity to the proximity sensing display. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A proximity sensing organic light emitting diode (OLED) display comprising a semiconductor layer, the semiconductor layer comprising:
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a plurality of picture element (pixel) LEDs configured to emit or control visible light for displaying images at the display; and a plurality of transmitter LEDs configured to emit radiation for proximity sensing; wherein one or more of the plurality of pixel LEDs are further configured to receive IR radiation emitted from one or more of the plurality of transmitters and reflected by an object for proximity sensing. - View Dependent Claims (16, 17)
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18. A proximity sensing liquid crystal display (LCD), comprising:
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a backlight layer; a thin film transistor (TFT) layer supported on the backlight layer; a color filter layer supported on the TFT layer; a cover layer supported on the color filter layer; one or more visible pixel elements provided in the TFT layer, the visible pixel elements comprising electric circuits for magnetically affecting liquid crystals within the color filter layer; and a plurality of radiation transmitters and receivers for proximity sensing. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A portable audio player comprising a proximity sensing liquid crystal display (LCD), comprising:
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a backlight layer; a thin film transistor (TFT) layer supported on the backlight layer; a color filter layer supported on the TFT layer; a cover layer supported on the color filter layer; one or more visible pixel elements provided in the TFT layer, the visible pixel elements comprising electric circuits for magnetically affecting liquid crystals within the color filter layer; and a plurality of radiation transmitters and receivers for proximity sensing.
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27. A mobile telephone comprising a proximity sensing liquid crystal display (LCD), comprising:
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a backlight layer; a thin film transistor (TFT) layer supported on the backlight layer; a color filter layer supported on the TFT layer; a cover layer supported on the color filter layer; one or more visible pixel elements provided in the TFT layer, the visible pixel elements comprising electric circuits for magnetically affecting liquid crystals within the color filter layer; and a plurality of radiation transmitters and receivers for proximity sensing.
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28. A method for providing proximity sensing over a surface area, comprising:
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emitting radiation at a first plurality of locations arranged throughout the surface area; and receiving reflected radiation from the first plurality of locations at a second plurality of locations arranged throughout the surface area. - View Dependent Claims (29, 30, 31)
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32. A method for operating a proximity sensing panel, comprising
activating a first group of transmitters from a plurality of transmitters disposed throughout the proximity sensing panel while keeping one or more other transmitters of the plurality of transmitters inactive; -
deactivating the first group of transmitters while activating a second group of transmitters, the second group being selected from transmitters that are not in the first group; and detecting radiation transmitted from the first and second groups of transmitters. - View Dependent Claims (33, 34, 35)
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36. A method for operating a proximity sensing display comprising, a plurality of picture elements (pixels), a plurality of transmitters, and a plurality of receivers, the method comprising:
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operating one or more of the plurality of pixels to create a visible image; operating two or more of the plurality of transmitters to emit radiation from the display; operating one or more of the plurality of receivers to receive radiation emitted from the display and reflected by an object in proximity to the display; and sending one or more results signals to a controller, the results signals being based on the received radiation. - View Dependent Claims (37, 38, 39, 40, 41)
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42. A method for manufacturing a proximity sensing display, comprising:
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forming a first semiconductor processing layer; and combining a plurality of picture element cells, transmitters and receivers in the first layer, wherein the picture element cells are configured to emit or control visible light for displaying images at a display, the transmitters are configured to emit radiation, and the receivers are configured to receive radiation transmitted by the transmitters and reflected by an object in proximity to the proximity sensing display. - View Dependent Claims (43)
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44. A method for operating a proximity sensing display, comprising:
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displaying images at the display using a plurality of picture elements by selectively controlling or emitting visible light by the picture elements; transmitting radiation from a plurality of transmitters; and receiving radiation reflected by an object in proximity to the sensing display at a plurality of receivers, wherein the picture elements, the transmitters and the receivers are all semiconductor elements formed on a single semiconductor layer. - View Dependent Claims (45)
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Specification