Interactive display panel with IR diodes
AssigneeApple Inc.
InventorsKapil V. Sakariya, Tore Nauta
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Abstract
Exemplary methods and systems use a micro light emitting diode (LED) in an active matrix display to emit light and a sensing IR diode to sense light. A display panel includes a display substrate having a display region, an array of subpixel circuits, and an array of selection devices. Each subpixel circuit includes a driving circuit to operate a corresponding infrared (IR) emitting LED in a light emission mode. Each selection device may be coupled to a corresponding sensing IR diode to operate the corresponding sensing IR diode in a light sensing mode.
Claims20
A display panel comprising:
- a display substrate having a display region;
- a row of interactive pixels within the display region, each interactive pixel comprising an infrared emitting light emitting diode (IR emitting LED) and a sensing infrared diode (sensing IR diode);
- a row of interactive microchips within the display region and adjacent to the row of interactive pixels, each interactive microchip including a selection device to operate a corresponding sensing IR diode in the row of interactive pixels in a light sensing mode and a subpixel circuit comprising a driving circuit to operate a corresponding IR emitting LED in the row of interactive pixels in a light emission mode;
- a row of emissive pixels within the display region, each emissive pixel comprising an IR emitting LED, wherein each emissive pixel does not include a sensing IR diode;
- a row of driving microchips within the display region and adjacent to the row of emissive pixels, each driving microchip includes a subpixel circuit comprising a driving circuit to operate a corresponding IR emitting LED in the row of emissive pixels.
A method of operating a display panel comprising:
- sending a write signal to a row of driving microchips within a display region of a display substrate to operate a row of infrared emitting light emitting diodes (IR emitting LEDs) mounted to the display substrate within a row of emissive pixels adjacent to the row of driving microchips within the display region in a light emission mode;
- sending a sense signal to a row of interactive microchips within the display region to operate a row of sensing infrared diodes (sensing IR diodes) mounted to the display substrate within a row of interactive pixels adjacent to the row of interactive microchips within the display region in a light sensing mode;
- wherein each emissive pixel does not include a sensing IR diode;
- detecting an intensity of light with the row of sensing IR diodes in the light sensing mode;
- and
- altering a light emitted from the display panel in response to the detected intensity of light.
Dependencies are inferred from the claim text.