Display-integrated optical sensor with focused and folded light path
AssigneeSynaptics Incorporated
InventorJoseph Kurth Reynolds
Life of this patent
Estimating the term…
Abstract
A method for optically imaging an object using a display device includes: illuminating, by the display device, an object at a sensing region corresponding to an optical sensor of the display device; conditioning, by the display device, light from the sensing region, wherein conditioning the light includes focusing and reflecting the light; receiving, by the display device, the conditioned light at photodetectors of the optical sensor; and generating, by a processing system associated with the display device, an image of the object based on the conditioned light received at the photodetectors of the optical sensor.
Claims21
An optical sensor device, comprising:
- a substrate;
- a plurality of first reflectors disposed on the substrate;
- and
- an optical sensor comprising a plurality of photodetectors disposed on the substrate, wherein each respective photodetector of the plurality of photodetectors corresponds to a respective reflector of the plurality of first reflectors;
- wherein each respective reflector of the plurality of first reflectors is configured to reflect light from a sensing region corresponding to the optical sensor towards a respective photodetector or a respective array of photodetectors of the plurality of photodetectors.
An optical sensor device, comprising:
- a substrate;
- a first reflector disposed on the substrate, wherein the first reflector comprises a plurality of domains;
- and
- an optical sensor comprising a plurality of photodetectors disposed on the substrate;
- wherein each respective domain of the plurality of domains has a respective focal region corresponding to a respective photodetector of the plurality of photodetectors such that each respective domain of the plurality of domains is configured to reflect light from a sensing region corresponding to the optical sensor towards a different respective photodetector of the plurality of photodetectors.
A display device, comprising:
- a display;
- and
- an optical sensor device configured to image an object, wherein the optical sensor device comprises:
- a substrate;
- a plurality of first reflectors disposed on the substrate;
- and
- an optical sensor comprising a plurality of photodetectors disposed on the substrate, wherein each respective photodetector of the plurality of photodetectors corresponds to a respective reflector of the plurality of first reflectors;
- wherein each respective reflector of the plurality of first reflectors is configured to reflect light from a sensing region corresponding to the optical sensor towards a respective photodetector or a respective array of photodetectors of the plurality of photo detectors.
A method for optically imaging an object using a display device, the method comprising:
- illuminating, by the display device, an object at a sensing region corresponding to an optical sensor of the display device;
- conditioning, by the display device, light from the sensing region, wherein conditioning the light includes focusing and reflecting the light via a plurality of first reflectors, wherein each respective reflector of the plurality of first reflectors is configured to reflect light from the sensing region towards a respective photodetector or a respective array of photodetectors of a plurality of photodetectors of the optical sensor;
- receiving, by the display device, the conditioned light at the plurality of photodetectors of the optical sensor, wherein each respective photodetector of the plurality of photodetectors corresponds to a respective reflector of the plurality of first reflectors;
- and
- generating, by a processing system associated with the display device, an image of the object based on the conditioned light received at the plurality of photodetectors of the optical sensor.
Dependencies are inferred from the claim text.