Abstract: Optical sensor module (54) for detection of ambient light behind an OLED display (2), comprising a first optical sensor (56) and a second optical sensor (58), whereby the first optical sensor (56) is preceded by a polarizer (70).

Abstract: A system comprising a display and an ambient light sensing module, the ambient light sensing module being located beneath the display. The display comprises an array of light emitting diodes and a first polarizer located above the display. The sensing module comprises a first sensor and a second sensor, a second polarizer being located above the second sensor.

Abstract: A system comprises a display and one or more sensors, the one or more sensors being located beneath the display. The display comprises an array of light emitting diodes and associated transistors supported by a substrate. The display further comprises two or more layers of insulator material. The thicknesses of the layers are optimized to allow transmission of infrared radiation and/or visible radiation through the layers and onto the one or more sensors.

Abstract: A display screen (12A) includes a carrier (18), OLED pixels (14) disposed over the carrier (18), and control circuitry (16) disposed over the carrier (18) and coupled to the OLED pixels (14). The display screen (12A) also includes a light absorption layer (100) disposed in a plane such that the carrier (18) is on a first side of the plane, and the OLED pixels (14) and control circuitry (16) are on a second side of the plane. In some implementations, the light absorption layer (100) helps prevent light (40) emitted by an optical sensor module (10) disposed behind the OLED display screen (12A) from directly impinging on light sensitive regions of the display screeds control circuitry (16). The light absorption layer (100) also can, in some instances, help prevent light (42) from directly impinging on, and being reflected by, regions of the display screeds pixels (14).