Display with sensing and detection functionality
Assigneeams International AG
InventorJens Hofrichter
Life of this patent
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Abstract
A display includes a display substrate having an active display area including a plurality of first display subpixels. A transceiver circuit is arranged to drive the display in a first mode of operation or in a second mode of operation. The first display subpixels include micro light-emitting diodes and/or resonant-cavity light emitting devices. In the first mode of operation, the transceiver circuit provides a forward bias to the first display subpixels, such that the first display subpixels are operable to emit light. In the second mode of operation, the transceiver circuit provides a reverse bias to the first display subpixels, such that the first display subpixels are operable to detect light.
Claims19
A display comprising:
- a display substrate having an active display area comprising a plurality of first display subpixels, and
- a transceiver circuit arranged to drive the display in a first mode of operation or in a second mode of operation;
- wherein:
- the first display subpixels comprise micro light-emitting diodes and/or resonant-cavity light emitting devices,
- in the first mode of operation, the transceiver circuit provides a forward bias to the first display subpixels, such that the first display subpixels are operable to emit light,
- in the second mode of operation, the transceiver circuit provides a reverse bias to the first display subpixels, such that the first display subpixels are operable to detect light, and
- the first display subpixels comprise:
- a red display subpixel that emits in a red band and detects in a green band and a blue band;
- a blue display subpixel that emits in the blue band and detects in the red band and the green band;
- and
- a green display subpixel that emits in the green band and detects in the red band and the blue band.
A method to operate a display, wherein the display comprises:
- a display substrate having an active display area comprising a plurality of first display subpixels, wherein the first display subpixels comprise micro light-emitting diodes and/or resonant-cavity light emitting devices, and wherein the first display subpixels comprise:
- a red display subpixel that emits in a red band and detects in a green band and a blue band:
- a blue display subpixel that emits in the blue band and detects in the red band and the green band;
- and
- a green display subpixel that emits in the green band and detects in the red band and the blue band, and
- a transceiver circuit arranged to drive the display in a first mode of operation or in a second mode of operation;
- the method comprising the steps of:
- in the first mode of operation, providing a forward bias to the first display subpixels by means of the transceiver circuit and operating the first display subpixels to emit light, and
- in the second mode of operation, providing a reverse bias to the first display subpixels by means of the transceiver circuit and operating the first display subpixels to detect light.
Dependencies are inferred from the claim text.