Fingerprint sensing display apparatus, method of using fingerprint sensing display apparatus, and method of fabricating fingerprint sensing display apparatus

A fingerprint sensing display apparatus having a plurality of subpixel regions spaced apart by an inter-subpixel region, comprising:

• a counter substrate;
• an array substrate facing the counter substrate, wherein the array substrate comprises a plurality of light emitting elements configured to emit light toward the counter substrate, at least a portion of the light being totally reflected by a surface of the counter substrate away from the array substrate;
• a plurality of photosensors on a side of the array substrate away from the counter substrate;
• and
• a first light shielding layer and a second light shielding layer between the plurality of photosensors and the plurality of light emitting elements, the second light shielding layer is on a side of the first light shielding layer away from the plurality of light emitting elements;
• wherein the first light shielding layer comprises a plurality of first light transmitting regions and a plurality of first light absorbing barriers alternatively arranged;
• the plurality of first light absorbing barriers are spaced apart from each other, and are arranged along a first direction;
• and
• the plurality of first light transmitting regions are spaced apart from each other, and are arranged along the first direction;
• wherein the second light shielding layer comprises a plurality of second light transmitting regions and a plurality of first light absorbing barriers alternatively arranged;
• wherein the plurality of second light absorbing barriers are spaced apart from each other, and are arranged along a second direction;
• and
• the plurality of second light transmitting regions are spaced apart from each other, and are arranged along the second direction;
• wherein the plurality of first light absorbing barriers and the plurality of second light absorbing barriers cross over each other, forming a plurality of intersection regions configured to block at least a portion of diffusedly reflected light from passing there-through, and defining a plurality of light path apertures configured to allow at least the portion of the light totally reflected by the surface of the counter substrate away from the array substrate to pass therethrough, thereby forming a signal-enriched light beam;
• in a respective one of the plurality of intersection regions, an orthographic projection of a respective one of the plurality of first light absorbing barriers on the array substrate overlaps with an orthographic projection of a respective one of the plurality of second light absorbing barriers on the array substrate;
• and
• the plurality of photosensors are configured to detect the signal-enriched light beam, thereby detecting a fingerprint information.