阅读说明：本技术 显示基板及其制作方法、显示装置 (Display substrate, manufacturing method thereof and display device ) 是由 舒适 徐传祥 姚琪 黄海涛 蒋学 于 2019-08-06 设计创作，主要内容包括：一种显示基板及其制作方法、显示装置,显示基板包括：衬底、设置于衬底上的多个发光器件、设置于多个发光器件的远离衬底的出光侧的封装层以及设置于封装层的远离衬底的表面上的至少一个光敏传感器,至少一个光敏传感器中的每个光敏传感器配置为采集光信号以进行纹路识别。(A display substrate, a manufacturing method thereof and a display device are provided, wherein the display substrate comprises: the light-emitting device comprises a substrate, a plurality of light-emitting devices arranged on the substrate, an encapsulation layer arranged on the light-emitting sides, far away from the substrate, of the light-emitting devices, and at least one photosensitive sensor arranged on the surface, far away from the substrate, of the encapsulation layer, wherein each photosensitive sensor in the at least one photosensitive sensor is configured to collect light signals for texture recognition.)

A display substrate, comprising:

a substrate;

a plurality of light emitting devices disposed on the substrate;

the packaging layer is arranged on the light emitting sides of the plurality of light emitting devices far away from the substrate;

and at least one photosensitive sensor disposed on a surface of the encapsulation layer distal from the substrate, each of the at least one photosensitive sensor configured to collect optical signals for texture recognition.

The display substrate of claim 1, further comprising: the at least one touch structure is arranged on one side, far away from the substrate, of the packaging layer;

wherein an orthographic projection of any one of the at least one touch structure on the substrate does not overlap with an orthographic projection of each photosensitive sensor on the substrate.

The display substrate of claim 1 or 2, wherein the photosensitive sensor comprises:

the control electrode, the first insulating layer and the photosensitive semiconductor layer are sequentially stacked along the direction far away from the substrate;

and a first electrode and a second electrode electrically connected to the photosensitive semiconductor layer.

The display substrate of claim 3, wherein, in a case where the display substrate comprises at least one touch structure, each of the at least one touch structure comprises a third electrode and a fourth electrode arranged in an insulating manner, the third electrode comprising: the second sub-electrodes are arranged on the same layer as the first sub-electrodes, and the second sub-electrodes are electrically connected with the first sub-electrodes respectively;

and a first electrode and a second electrode in the photosensitive sensor are respectively arranged in a way of insulating with the bridging sub-electrode in the same layer.

The display substrate of claim 3, wherein, in a case where the display substrate comprises at least one touch structure, each of the at least one touch structure comprises a third electrode and a fourth electrode arranged in an insulating manner, the third electrode comprising: the second sub-electrodes are arranged on the same layer as the first sub-electrodes, and the second sub-electrodes are electrically connected with the first sub-electrodes respectively;

and the control electrode and the bridging sub-electrode in the photosensitive sensor are arranged in a same-layer insulation manner, and the first electrode and the second electrode in the photosensitive sensor are respectively arranged in a same-layer insulation manner with the fourth electrode.

The display substrate of claim 3,

the first electrode in at least one photosensitive sensor is electrically connected with one scanning signal line;

the second electrode in at least one of the photosensors is electrically connected to a common electrode line.

The display substrate according to any one of claims 1 to 6, further comprising: at least one shading part arranged on one side of the at least one photosensitive sensor far away from the substrate;

wherein an orthographic projection of each photosensitive sensor on the substrate is not overlapped or partially overlapped with an orthographic projection of any light shielding part in the at least one light shielding part on the substrate.

The display substrate according to claim 7, wherein in a case where the photo sensors include a photo-sensitive semiconductor layer, an orthogonal projection of the photo-sensitive semiconductor layer in each of the photo sensors on the substrate is located outside a range of an orthogonal projection of any of the at least one light-shielding portion on the substrate.

The display substrate of claim 7, further comprising: a plurality of colour filters arranged on a side of said at least one light sensitive sensor remote from said substrate;

wherein an orthographic projection of each of the plurality of light emitting devices on the substrate is within an orthographic projection range of one of the plurality of color filter portions on the substrate;

the orthographic projection of each photosensitive sensor in the at least one photosensitive sensor on the substrate is positioned in the orthographic projection range of one color filter part in the plurality of color filter parts on the substrate or partially overlapped with the orthographic projection of one color filter part in the plurality of color filter parts on the substrate.

The display substrate according to claim 9, wherein the at least one light-shielding portion comprises a plurality of light-shielding portions arranged in an array;

and a color filter part is arranged between every two adjacent light shielding parts along the row direction or the column direction, and the orthographic projection of the area between every two adjacent light shielding parts on the substrate is positioned in the range of the orthographic projection of the color filter part on the substrate.

The display substrate of claim 9, further comprising: a first flat layer disposed between the plurality of color filters and the at least one photosensor;

in the case where the display substrate further comprises at least one touch structure, the at least one touch structure is located on a side of the first planar layer that is proximate to the at least one light sensitive sensor.

A display substrate according to claim 11, wherein the at least one light blocking portion is located on a side of the first planar layer adjacent to the plurality of color filters.

The display substrate of claim 9, further comprising: a second flat layer provided on a side of the plurality of color filters away from the substrate;

the at least one light shielding portion is located on a side of the second flat layer close to the plurality of color filter portions.

A manufacturing method of a display substrate comprises the following steps:

providing a substrate;

manufacturing a plurality of light emitting devices on the substrate;

forming an encapsulation layer on one side of the plurality of light emitting devices away from the substrate;

fabricating at least one photosensitive sensor on a surface of the encapsulation layer remote from the substrate, each of the at least one photosensitive sensor configured to collect optical signals for texture recognition.

The method of manufacturing a display substrate according to claim 14, further comprising: manufacturing at least one touch structure on one side of the packaging layer far away from the substrate;

wherein an orthographic projection of any one of the at least one touch structure on the substrate does not overlap with an orthographic projection of each photosensitive sensor on the substrate.

The method for manufacturing a display substrate according to claim 14 or 15, wherein the manufacturing at least one photosensitive sensor on the surface of the encapsulation layer away from the substrate comprises:

forming a first conductive layer on the surface of the packaging layer far away from the substrate, patterning the first conductive layer, and preparing at least one control electrode;

forming a first insulating layer on the surface of the at least one control electrode far away from the packaging layer;

forming at least one photosensitive semiconductor layer in one-to-one correspondence with the at least one control electrode on the surface of the first insulating layer, which is far away from the at least one control electrode;

and forming a second conductive layer on one side of the at least one photosensitive semiconductor layer far away from the first insulating layer, patterning the second conductive layer, and preparing a first electrode and a second electrode electrically connected with each of the at least one photosensitive semiconductor layer.

The method of manufacturing a display substrate according to claim 16,

each of the photosensitive sensors includes: the control electrode, the first insulating layer and the photosensitive semiconductor layer are sequentially stacked along the direction far away from the substrate; and a first electrode and a second electrode electrically connected to the photosensitive semiconductor layer;

the display substrate further comprises at least one touch structure, and each touch structure of the at least one touch structure comprises: the third electrode and the fourth electrode are arranged in an insulating way; wherein the third electrode comprises: the second sub-electrodes are arranged on the same layer as the first sub-electrodes, and the second sub-electrodes are electrically connected with the first sub-electrodes respectively;

manufacturing the at least one touch structure on the side of the packaging layer far away from the substrate, and further comprising:

forming a first conductive layer on one side of the packaging layer far away from the substrate, patterning the first conductive layer, and preparing at least one control electrode and at least one bridging sub-electrode; forming a second conductive layer on a side of at least one of the photosensitive semiconductor layers, which is far from the first insulating layer, patterning the second conductive layer, and preparing a first electrode and a second electrode electrically connected to each of the photosensitive semiconductor layers, two third sub-electrodes electrically connected to each of the bridging sub-electrodes, and a fourth electrode corresponding to each of the bridging sub-electrodes.

The method of manufacturing a display substrate according to claim 16,

each of the photosensitive sensors includes: the control electrode, the first insulating layer and the photosensitive semiconductor layer are sequentially stacked along the direction far away from the substrate; and a first electrode and a second electrode electrically connected to the photosensitive semiconductor layer;

the display substrate further comprises at least one touch structure, and each touch structure of the at least one touch structure comprises: the third electrode and the fourth electrode are arranged in an insulating way; wherein the third electrode comprises: the bridge sub-electrodes are electrically connected with the two third sub-electrodes respectively, and the bridge sub-electrodes and the fourth electrodes are arranged in a different layer in an insulating manner;

manufacturing the at least one touch structure on the side of the packaging layer far away from the substrate, and further comprising: forming a second conductive layer on a side of at least one of the photosensitive semiconductor layers remote from the first insulating layer, patterning the second conductive layer, and preparing at least one of the bridging sub-electrodes, and a first electrode and a second electrode electrically connected to each of the photosensitive semiconductor layers; and forming a third conductive layer on one side of at least one bridging sub-electrode far away from the first insulating layer, patterning the third conductive layer, and preparing two third sub-electrodes electrically connected with each bridging sub-electrode and a fourth electrode corresponding to each bridging sub-electrode.

The method of claim 16, wherein the forming a second conductive layer on a side of the at least one photosensitive semiconductor layer away from the first insulating layer, the second conductive layer being patterned, further comprises:

preparing at least one scanning signal line, wherein each scanning signal line in the at least one scanning signal line is electrically connected with at least one first electrode;

and preparing at least one common electrode wire, wherein each common electrode wire in the at least one common electrode wire is electrically connected with at least one second electrode.

The method for manufacturing a display substrate according to any one of claims 14 to 19, further comprising: manufacturing at least one shading part on one side of the at least one photosensitive sensor far away from the substrate;

wherein an orthographic projection of each photosensitive sensor on the substrate is not overlapped or partially overlapped with an orthographic projection of any light shielding part in the at least one light shielding part on the substrate.

The method of manufacturing a display substrate according to claim 20, further comprising: making a plurality of colour filters on a side of said at least one light sensitive sensor remote from said substrate;

wherein an orthographic projection of each of the plurality of light emitting devices on the substrate is within an orthographic projection range of one of the plurality of color filter portions on the substrate;

the orthographic projection of each photosensitive sensor in the at least one photosensitive sensor on the substrate is positioned in the orthographic projection range of one color filter part in the plurality of color filter parts on the substrate or partially overlapped with the orthographic projection of one color filter part in the plurality of color filter parts on the substrate.

A display device comprising the display substrate according to any one of claims 1 to 13.