Patent ID: 11875595
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A texture recognition apparatus, having a touch side surface, and comprising:
a light source array, comprising a plurality of light sources;
an image sensor array, comprising a plurality of image sensors, wherein the plurality of image sensors are configured to be able to receive light emitted from the plurality of light sources and reflected by a texture to the plurality of image sensors for texture image collection, each of the plurality of image sensors comprises a photosensitive element; and
a light shielding layer, on a light incident side of the image sensor array, wherein the light shielding layer comprises a plurality of light-transmitting holes, the plurality of light-transmitting holes are configured to collimate light emitted by the plurality of light sources and reflected by the texture to a direction perpendicular to the touch side surface;
wherein in the direction perpendicular to the touch side surface, a photosensitive element in each of the plurality of image sensors at least partially overlaps with at least one of the plurality of light-transmitting holes,
wherein the texture recognition apparatus further comprises:
a display panel, wherein the display panel comprises an array substrate; the array substrate comprises a base substrate and a sub-pixel array on the base substrate; the sub-pixel array comprises a plurality of sub-pixels,
wherein the light source array comprises the sub-pixel array; and the plurality of light sources comprise the plurality of sub-pixels,
wherein each of the plurality of sub-pixels comprises a pixel driving circuit on the base substrate; the pixel driving circuit comprises a thin film transistor; and each of the plurality of image sensors further comprises a switch transistor on the base substrate, the thin film transistor and the switch transistor are in a same layer,
wherein the photosensitive element is on a side of the switch transistor away from the base substrate; the photosensitive element comprises a first electrode, a second electrode and a semiconductor layer between the first electrode and the second electrode; the first electrode is electrically connected with the switch transistor;
the array substrate further comprises a planarization layer on a side of the photosensitive element away from the base substrate; and the planarization layer has a first via and a second via;
each of the plurality of sub-pixels further comprises a light-emitting device; the light-emitting device is on a side of the planarization layer away from the base substrate; the light-emitting device comprises a first light-emitting electrode, a second light-emitting electrode, and a light-emitting layer between the first light-emitting electrode and the second light-emitting electrode; the first light-emitting electrode is electrically connected with the thin film transistor at least through the first via;
the array substrate further comprises a connecting line in a same layer as the first light-emitting electrode; and the connecting line is electrically connected with the second electrode of the photosensitive element through the second via.