Patent ID: 11900864
Assignee: AMS INTERNATIONAL AG
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. 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.