CN114759070B

CN114759070B - Display device

Info

Publication number: CN114759070B
Application number: CN202210334352.5A
Authority: CN
Inventors: 娄彦博; 曾洋
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2024-07-12
Anticipated expiration: 2042-03-30
Also published as: CN114759070A

Abstract

The embodiment of the invention discloses a display device, which comprises a photosensitive layer, a light guiding layer and a shading layer, wherein the light guiding layer is positioned between the photosensitive layer and the film layer where the shading layer is positioned; the light shielding layer is provided with a light transmission small hole, the photosensitive layer comprises a plurality of photosensitive units, and light transmitted through the light transmission small hole is incident to the photosensitive units; the light guiding layer is provided with a light guiding opening, and the light guiding opening is staggered with the light sensing unit. The technical scheme of the embodiment of the invention can avoid the mutual overlapping crosstalk of the light rays transmitted by the adjacent light-transmitting small holes and improve the imaging quality of the small hole imaging.

Description

Display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a display device.

Background

Along with development of technology, various display devices with optical recognition functions, such as mobile phones, tablet computers, intelligent wearable devices and the like, appear on the market. User authority verification can be completed through the optical identification function, and the authority verification process is simplified.

The existing scheme comprises the step of adopting a pinhole imaging technology to realize an optical identification function. In short, by arranging the imaging aperture array in the display device, each imaging aperture generates partial image information of the object to be identified on the corresponding light-sensitive sensor in an aperture imaging mode, and finally, a plurality of partial images on the light-sensitive sensor are spliced together, so that a complete image can be obtained, and an optical identification function is realized.

However, according to the imaging principle of aperture imaging, if the distance between the apertures is too small, the light rays transmitted by different apertures can overlap each other and cross talk, which affects the imaging quality and further affects the accuracy of the recognition result.

Disclosure of Invention

The embodiment of the invention provides a display device, which is used for avoiding the mutual overlapping crosstalk of light rays transmitted by different light-transmitting pores and improving the imaging quality of pore imaging.

The display device provided by the embodiment of the invention comprises: the light guide layer is positioned between the photosensitive layer and the film layer where the light shielding layer is positioned;

The light shielding layer is provided with a light transmission small hole, the photosensitive layer comprises a plurality of photosensitive units, and light transmitted through the light transmission small hole is incident to the photosensitive units;

The light guiding layer is provided with a light guiding opening, and the light guiding opening is staggered with the light sensing unit.

According to the embodiment of the invention, the light guide layer is arranged between the photosensitive layer and the film layer where the shading layer is arranged, and the light guide opening is arranged in the light guide layer, so that the light guide opening is misplaced with the photosensitive unit, thereby intercepting part of light which is overlapped in the light which is incident to the photosensitive unit through the adjacent light transmission small holes by utilizing the light guide layer, simultaneously guiding the light which is transmitted by different light transmission small holes to different photosensitive units by utilizing the light guide opening in the light guide layer, avoiding crosstalk caused by the fact that the light with different light transmission small Kong Touguo is incident to the same photosensitive unit, and improving the imaging quality.

Drawings

FIG. 1 is a schematic diagram of the principle of crosstalk of light transmitted through adjacent imaging apertures;

fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention;

FIG. 3 is an enlarged top view of the area P of FIG. 2;

fig. 4 is a schematic structural diagram of another display device according to an embodiment of the present invention;

FIG. 5 is a schematic view showing a partial cross-sectional structure of the display device taken along AA' in FIG. 3;

FIG. 6 is a schematic view showing a partial sectional structure of the display device taken along BB' in FIG. 3;

fig. 7 is a schematic diagram of a partial top view structure of a display device according to an embodiment of the present invention;

FIG. 8 is another enlarged top view of the area P of FIG. 2;

FIG. 9 is another enlarged top view of the area P of FIG. 2;

FIG. 10 is another enlarged top view of the area P of FIG. 2;

FIG. 11 is a schematic diagram of a partial top view of another display device according to an embodiment of the present invention;

FIG. 12 is another enlarged top view of the area P of FIG. 2;

FIG. 13 is a schematic diagram of a partial top view of another display device according to an embodiment of the present invention;

FIG. 14 is a schematic view showing the relative positional relationship of the photosensitive layer and the light guiding layer in the first state in the embodiment of the present invention;

FIG. 15 is a schematic view showing the relative positional relationship of the photosensitive layer and the light guiding layer in the second state in the embodiment of the present invention;

fig. 16 is a schematic view showing a partial cross-sectional structure of a display device according to an embodiment of the present invention;

FIG. 17 is a schematic view of a partial cross-sectional structure of another display device according to an embodiment of the present invention;

fig. 18 is a schematic view of a partial cross-sectional structure of another display device according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all structures related to the present invention are shown in the accompanying drawings, and the shapes and sizes of the elements in the drawings do not reflect the actual proportions thereof, for the purpose of illustrating the present invention only.

The basic principle of the optical recognition function of the display device is as follows: the light reflected by the object to be identified is received by an optical identification element (a device comprising a plurality of light-sensitive sensors) which is imaged according to a corresponding imaging principle, realizing optical identification. In the prior art, in order to improve imaging and detection precision, a shading layer is arranged in a display device, and an imaging aperture is arranged on the shading layer, so that light reflected by an object to be identified can penetrate through the imaging aperture of the shading layer and be received by an optical identification element, and the optical identification element images by utilizing the principle of aperture imaging, thereby realizing an optical identification function.

As described in the background art, if the distance between the imaging apertures is too small, the crosstalk between the light rays transmitted by different imaging apertures is caused, which affects the imaging quality. For example, in a practical application scenario, in order to implement a foldable OLED (Organic Light-Emitting Diode) display device, a Cover Lens (Cover Lens) on a rigid OLED display panel needs to be removed, which directly results in a reduction of the distance from the object to be identified to the imaging aperture, so that the aperture imaging cannot completely Cover the entire area to be identified. To solve this problem, the distance between the imaging apertures needs to be reduced, but this modification causes crosstalk between light rays transmitted by adjacent imaging apertures, which affects the imaging quality.

For example, fig. 1 is a schematic diagram of the principle that crosstalk occurs between light rays transmitted through adjacent imaging apertures, as shown in fig. 1, taking an example that fingerprint recognition can be implemented by using an optical recognition function of a display device, reflected light rays of different areas (such as an area Q1 and an area Q2) of a finger 001 are irradiated onto photo sensors 02 arranged in an array after passing through different imaging apertures 01, so as to generate image information of a local fingerprint of a corresponding area, and due to a relatively close distance between the imaging apertures 01, overlapping (such as light rays in an overlapping area Q3) occurs on light rays transmitted through adjacent imaging apertures 01, so that part of the photo sensors 02 simultaneously receive light rays from different areas of the finger 001, that is, overlapping crosstalk exists on light information read by part of the photo sensors, thereby affecting imaging quality.

In order to solve the above problems, an embodiment of the present invention provides a display device, which includes a photosensitive layer, a light guiding layer and a light shielding layer, wherein the light guiding layer is located between the photosensitive layer and the light shielding layer; the light shielding layer is provided with a light transmission small hole, the photosensitive layer comprises a plurality of photosensitive units, and light transmitted through the light transmission small hole is incident to the photosensitive units; the light guiding layer is provided with a light guiding opening, and the light guiding opening is staggered with the light sensing unit.

By adopting the technical scheme, the light guide layer can be used for intercepting part of light which is overlapped in the light which is incident to the light sensing unit through the adjacent light transmission small holes, meanwhile, the light which is transmitted by different light transmission small holes is guided to different light sensing units through the light guide openings in the light guide layer, so that crosstalk caused by incidence of light with different light transmission small Kong Touguo to the same light sensing unit is avoided, and imaging quality is improved.

The above is the core idea of the application, and based on the embodiments of the application, all other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of the application. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

Fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention, and fig. 3 is an enlarged top structural diagram of a P region in fig. 2, and as shown in fig. 2 and 3, a display device 100 according to an embodiment of the present invention includes a photosensitive layer 10, a light guiding layer 20, and a light shielding layer 30, where the light guiding layer 20 is located between the photosensitive layer 10 and the light shielding layer 30; the light shielding layer 30 is provided with a light transmission small hole 31, the photosensitive layer 10 comprises a plurality of light sensing units 11, and light transmitted through the light transmission small hole 31 is incident to the light sensing units 11; the light guiding layer 20 is provided with a light guiding opening 21 therein, and the light guiding opening 21 is offset from the light sensing unit 11.

The photosensitive layer 10 includes a plurality of photosensitive units 11, and is configured to receive light (light information) transmitted through the light-transmitting apertures 31, generate partial image information of an object to be identified (e.g., a finger) according to the light information, and finally splice the partial image information generated by the plurality of photosensitive units 11 to form a complete image, so as to implement an optical identification function (e.g., fingerprint identification). For example, referring to fig. 2 and 3, a plurality of light sensing units 11 in the photosensitive layer 10 may be arranged in an array, and the light transmitted by any light-transmitting aperture 31 may cover the plurality of light sensing units, and a partial image of the object to be identified corresponding to the light-transmitting aperture 31 may be generated by using the light sensing units in an aperture imaging manner.

Further, in the present embodiment, the display device 100 further includes a light guiding layer 20 located between the light shielding layer 30 and the photosensitive layer 10, and a light guiding opening 21 is provided in the light guiding layer 20, and the light guiding opening 21 is offset from the photosensitive unit 11, specifically, the center of the light guiding opening 21 is offset from the center of the photosensitive unit 11.

Specifically, the light guiding layer 20 is an opaque film, and only the light guiding opening 21 allows light to pass through. In this way, the light guiding layer 20 can be used to intercept part of the light incident to the light sensing units 11 through the adjacent light transmitting holes 31, and meanwhile, because the incident angle (the included angle between the light and the z direction) of the overlapped light is relatively large and the incident directions of the light transmitted through the adjacent light transmitting holes 31 are different, the light transmitted through the different light transmitting holes 31 can be guided to different light sensing units 11 through the light guiding openings 21 by arranging the light guiding openings 21 to be misplaced with the light sensing units 11, in other words, each light sensing unit 11 can only receive the light transmitted through one of the adjacent two light transmitting holes 31 through the corresponding light guiding opening 21, thereby avoiding the occurrence of overlapping crosstalk of the light information read by the light sensing units 11, ensuring that the light information read by each light sensing unit 11 is not distorted and improving the imaging quality.

It should be noted that, one light guiding opening 21 may correspond to one or more light sensing units 11, and one light sensing unit 11 may also correspond to one or more light guiding openings 21, and fig. 3 only illustrates that the light guiding openings 21 are disposed in a one-to-one correspondence with the light sensing units 11 in a region where light overlapping occurs in the prior art (e.g. region S1), and the correspondence is merely schematic, but not limited to, and the following description will not be repeated herein with reference to other embodiments.

It should be noted that fig. 1 only shows the relative positional relationship of the photosensitive layer 10, the light guiding layer 20, and the light shielding layer 30 along the thickness direction (i.e., the z direction) of the display device 100, specifically, the display device 100 includes a display panel, at least one of the optional photosensitive layer 10, the light guiding layer 20, and the light shielding layer 30 is disposed in the display panel, and the detailed description of the specific disposition positions of the three in the display device will be described later, which is not limited in this embodiment of the present invention, as long as the light guiding layer 20 is ensured to be located between the photosensitive layer 10 and the light shielding layer 30.

On the basis of the above embodiment, referring to fig. 2 and 3, there is a light overlapping area of the light transmitted through the adjacent two light-transmitting apertures 31; the light guiding openings 21 comprise at least a first kind of light guiding opening 211 and a second kind of light guiding opening 212; light passing through the light overlapping region is incident to the first type light sensing unit 111 through the first type light guiding opening 211, and light passing through the light overlapping region is incident to the second type light sensing unit 112 through the second type light guiding opening 212; the relative positional relationship between the first-type light guiding opening 211 and the first-type light sensing unit 111 and the relative positional relationship between the second-type light guiding opening 212 and the second-type light sensing unit 112 are different.

It will be appreciated that in the z-direction, overlapping light rays of two adjacent light-transmitting apertures have different extents in different planes perpendicular to the z-direction, i.e. "light ray overlap regions" have different extents in different planes perpendicular to the z-direction. In this embodiment, the light overlapping area may specifically refer to the overlapping area of the light transmitted by the adjacent light-transmitting apertures 31 on the photosensitive layer 10 when the light guiding layer 20 is not provided, such as the "overlapping area" of the extension line of the overlapping light transmitted by the adjacent two light-transmitting apertures 31 on the photosensitive layer 10 in fig. 2 (e.g. the area S1). In the prior art, the light sensing units 11 in the area S1 simultaneously receive the light from the two adjacent light transmitting holes 31, and the read light information has overlapping crosstalk, so in the embodiment of the invention, the light guiding layer 20 is disposed corresponding to the area, and the light guiding opening 21 is disposed in the light guiding layer 20, so that a part of the light is intercepted by the light guiding layer 20, and meanwhile, the light transmitted by the different light transmitting holes 31 is guided to the different light sensing units 11 by the light guiding opening 21, so that the overlapping crosstalk of the light information read by the light sensing units 11 in the area is avoided, and the imaging quality is improved.

In addition, in the present application, since the light guide layer 20 intercepts the overlapped light, the area where the light overlap actually occurs is already cut off at the light guide layer 20, that is, in the present application, there is no overlapped light on the photosensitive layer 10, so that the "light overlap area" may be understood as an overlapping range of the overlapped light on the light guide layer 20. Referring to fig. 4, fig. 4 is a schematic structural diagram of another display device according to an embodiment of the present application, and in the present application, the light overlapping area can be understood as an overlapping range (such as an area S2) of overlapping light of adjacent light-transmitting apertures 31 on the light guiding layer 20.

Further, along the connecting direction (i.e., the "first direction" described below) of the two adjacent light-transmitting apertures 31 corresponding to the light overlapping region, such as the x-direction in fig. 4, the width of the optional light guiding layer 20 is greater than or equal to the width of the overlapping range (such as the region S2 in fig. 4) of the overlapping light on the light guiding layer 20, so that the interception effect of the light guiding layer 20 on the overlapping light can be ensured, and meanwhile, the light transmitted by the different light-transmitting apertures 31 is guided to the different light-sensing units 11 by the light guiding openings 21, so that the overlapping crosstalk of the light information read by the light-sensing units 11 is avoided. It will be appreciated that the smaller the distance between the light guiding layer 20 and the photosensitive layer 10, the greater the width of the light guiding layer 20 along the first direction (e.g., x-direction). In addition, the width of the optional light guiding layer 20 along the first direction is smaller than or equal to the width of the "overlapping range" of the extension line of the overlapping light on the photosensitive layer 10 (as the region S1 in fig. 2), so that the light guiding layer 20 can be prevented from excessively shielding the light, and the light receiving unit 11 outside the region S1 is prevented from being affected.

Further, as shown in fig. 3 and 4, in this embodiment, by providing two types of light guiding openings 21, that is, the first type light guiding opening 211 and the second type light guiding opening 212 in the light guiding layer 20, and providing a difference in the relative positional relationship between the first type light guiding opening 211 and the first type light sensing unit 111 and the relative positional relationship between the second type light guiding opening 212 and the second type light sensing unit 112, the light passing through the light overlapping region (such as the region S2 in fig. 4) is made to enter the first type light sensing unit 111 through the first type light guiding opening 211, and the light passing through the light overlapping region (such as the region S2 in fig. 4) is made to enter the second type light sensing unit 112 through the second type light guiding opening 212, so that the first type light sensing unit 111 and the second type light sensing unit 112 receive the light from different light transmitting small holes 31 in the adjacent light transmitting small holes 31, thereby avoiding crosstalk and improving imaging quality.

The relative positions of the first light guiding opening 211 and the first light sensing unit 111 and the relative positions of the second light guiding opening 212 and the second light sensing unit 112 are different, specifically, the misalignment direction of the first light guiding opening 211 relative to the first light sensing unit 111 is different from the misalignment direction of the second light guiding opening 212 relative to the second light sensing unit 112.

Exemplary, fig. 5 is a schematic view of a partial cross-sectional structure of the display device taken along AA 'in fig. 3, fig. 6 is a schematic view of a partial cross-sectional structure of the display device taken along BB' in fig. 3, and in combination with fig. 3,5 and 6, the optional first-type light guiding opening 211 has a first misalignment direction F1 with respect to the first-type light sensing unit 111, and the second-type light guiding opening 212 has a second misalignment direction F2 with respect to the second-type light sensing unit 112; the first dislocation direction F1 and the second dislocation direction F2 are opposite in direction and are parallel to the connecting line direction of two adjacent light-transmitting small holes 31 corresponding to the light overlapping region.

As described above, the adjacent two light-transmitting apertures 31 may overlap due to the close distance, and thus, the adjacent two light-transmitting apertures 31 corresponding to the light-overlapping region, that is, the adjacent two light-transmitting apertures 31 overlapping the transmitted light and forming the light-overlapping region, overlap.

Specifically, the connecting line direction of two adjacent light-transmitting apertures 31 corresponding to the light overlapping region may be defined as the first direction. The first misalignment direction F1 of the first light guiding opening 211 with respect to the first light sensing unit 111 may specifically refer to a misalignment direction of a center of the first light guiding opening 211 along the first direction with respect to a center of the first light sensing unit 111 along the first direction, and the second misalignment direction F2 of the second light guiding opening 212 with respect to the second light sensing unit 112 may specifically refer to a misalignment direction of a center of the second light guiding opening 212 along the first direction with respect to a center of the second light sensing unit 112 along the first direction. To achieve that the first type of light sensing unit 111 and the second type of light sensing unit 112 receive light of different light transmitting apertures 31, the first misalignment direction F1 is optionally parallel to the first direction and directed from the center of the first light sensing unit 11 to one of the adjacent light transmitting apertures 31, and the second misalignment direction F2 is parallel to the first direction and directed from the center of the second light sensing unit 11 to the other light transmitting aperture 31.

For example, referring to fig. 2, two adjacent light-transmitting apertures 31 corresponding to the light-overlapping region (e.g., region S1) include a first light-transmitting aperture 311 and a second light-transmitting aperture 312, and the connecting direction (first direction) of the two light-transmitting apertures is parallel to the x-direction, and accordingly, in fig. 5 and 6, light L1 represents light transmitted by the first light-transmitting aperture 311, light L2 represents light transmitted by the second light-transmitting aperture 312, and referring to fig. 2, 3, 5 and 6, the first misalignment direction F1 of the first light-guiding opening 211 with respect to the first light-sensing unit 111 is opposite to the x-direction, and the second misalignment direction F2 of the second light-guiding opening 212 with respect to the second light-sensing unit 112 is identical to the x-direction.

As shown in fig. 2 and 5, when the light transmitted through the first light-transmitting aperture 311 passes through the light-guiding layer 20, part of the light (such as the light L1) can be incident on the first type light-sensing unit 111 through the first type light-guiding opening 211, meanwhile, since the first type light-guiding opening 211 is close to the edge of the first type light-sensing unit 111 far away from the second light-transmitting aperture 312, and since the incident angle of the light incident on the light-guiding layer 20 from the second light-transmitting aperture 312 is larger, even if part of the light (such as the light L2) transmitted through the second light-transmitting aperture 312 can propagate to the photosensitive layer 10 through the first type light-guiding opening 211, the light cannot be irradiated to the first type light-sensing unit 111, and therefore, the first type light-sensing unit 111 in the area where the light overlaps (i.e. the area S1) can only receive the light transmitted through the first light-transmitting aperture 311, and there is no crosstalk of the light transmitted through the second light-transmitting aperture 312. Similarly, as shown in fig. 2 and 6, when the light transmitted through the second light-transmitting aperture 312 passes through the light-guiding layer 20, part of the light (such as the light L2) may be incident on the second light-sensing unit 112 through the second light-guiding opening 212, and meanwhile, since the second light-guiding opening 212 is close to the edge of the second light-sensing unit 112 far from the first light-transmitting aperture 311, and since the incident angle of the light incident on the light-guiding layer 20 from the first light-transmitting aperture 311 is larger, even if part of the light (such as the light L1) transmitted through the first light-transmitting aperture 311 may propagate to the photosensitive layer 10 through the second light-guiding opening 212, the light cannot be irradiated on the second light-sensing unit 112, and therefore, the second light-sensing unit 112 in the area where the light overlaps (i.e. the area S1) may only receive the light transmitted through the second light-transmitting aperture 312, and there is no crosstalk of the light transmitted through the first light-transmitting aperture 311. In summary, since the first type light sensing unit 111 and the second type light sensing unit 112 respectively receive the light transmitted by one of the two adjacent light transmitting apertures 31, the overlapping area of the light on the photosensitive layer 10 can be eliminated, the light information read by each light sensing unit 11 is ensured to have no overlapping crosstalk, and the imaging quality is improved.

Fig. 7 is a schematic diagram illustrating a partial top view structure of a display device according to an embodiment of the present invention, as shown in fig. 7, the light shielding layer 30 includes a plurality of light-transmitting apertures 31, and an orthographic projection of a light overlapping area (e.g. an area S2) on a plane of the light shielding layer 30 is at least located in a central area of two adjacent light-transmitting apertures 31. For example, fig. 5 exemplarily shows four light-transmitting apertures 31 in the light-shielding layer 30, wherein the distance between two adjacent light-transmitting apertures 31 (such as light-transmitting apertures 31-1 and 31-2) along the x-direction or along the y-direction is relatively short, and a light overlapping region exists in a central region between the two in a direction perpendicular to a plane of the light-shielding layer 30, and by providing the light guiding layer 20 corresponding to the region, crosstalk of light transmitted by the adjacent light-transmitting apertures 31 can be avoided.

As will be understood from the above explanation, the connecting line directions of the light-transmitting apertures 31-1 and the light-transmitting apertures 31-3 are parallel to the y-direction, so that in the light guiding layer 20 correspondingly disposed in the light overlap region corresponding thereto, the first-type light guiding openings 211 are parallel to the y-direction with respect to the first misalignment direction F1 of the first-type light sensing units 111, and the second-type light guiding openings 212 are also parallel to the y-direction with respect to the second misalignment direction F2 of the second-type light sensing units 112, and are opposite to the first misalignment direction F1.

Optionally, the extending direction of the first type of light guiding opening 211 and/or the extending direction of the second type of light guiding opening 212 intersects the first direction.

As described above, the first direction is the connecting line direction of the adjacent two light-transmitting apertures 31 corresponding to the light-overlapping region. For example, referring to fig. 2 and 3, the direction of the line connecting the adjacent two light-transmitting apertures 31 corresponding to the light-overlapping region (e.g., region S1) is parallel to the x-direction, and accordingly, the extending direction of the first-type light-guiding opening 211 and the extending direction of the second-type light-guiding opening 212 intersect with the x-direction, and fig. 3 illustrates that the extending direction of the first-type light-guiding opening 211 and the extending direction of the second-type light-guiding opening 212 are parallel to the y-direction and orthogonal to the x-direction. In this way, it can be ensured that only part of the light transmitted through the first light-transmitting aperture 311 and the second light-transmitting aperture 312 can pass through the first light-guiding opening 211 or the second light-guiding opening 212, and meanwhile, by combining the relative positional relationship between the first light-guiding opening 211 and the first light-sensing unit 111 and the relative positional relationship between the second light-guiding opening 212 and the second light-sensing unit 112, it can be ensured that only part of the light transmitted through the first light-transmitting aperture 311 can enter the first light-sensing unit 111 through the first light-guiding opening 211, and only part of the light transmitted through the second light-transmitting aperture 312 can enter the second light-sensing unit 112 through the second light-guiding opening 212, so as to avoid crosstalk between the light transmitted through the adjacent light-transmitting apertures 31. In addition, by providing the first-type light guiding opening 211 and the second-type light guiding opening 212 with a certain extension length, the light receiving amount of the corresponding light sensing unit 11 can be ensured, and the imaging quality can be ensured.

It should be noted that, fig. 3 is only illustrated by way of example in which the first-type light guiding openings 211 and the second-type light guiding openings 212 are alternately arranged in sequence along the first direction (e.g., the x-direction), and the arrangement is not limited thereto, and several possible arrangements are provided below.

As a possible arrangement, fig. 8 is a schematic diagram of another enlarged top view of the P region in fig. 2, and as shown in fig. 8, the first-type light guiding openings 211 and the second-type light guiding openings 212 may alternatively be arranged in sequence along a second direction, where the second direction is parallel to the plane of the light guiding layer 20 and intersects the first direction. Illustratively, in fig. 2, the first direction is the x-direction, and correspondingly, the optional second direction is the y-direction orthogonal to the x-direction.

As another possible arrangement, fig. 9 is a schematic enlarged top view of the P area in fig. 2, and as shown in fig. 9, the first-type light guiding openings 211 and the second-type light guiding openings 212 may be alternately arranged in sequence along a first direction (such as an x direction) and a second direction (such as a y direction).

In addition, fig. 10 is a schematic diagram of another enlarged top view of the region P in fig. 2, as shown in fig. 10, when the first-type light guiding openings 211 and the second-type light guiding openings 212 are alternately arranged in sequence along the first direction (such as the x-direction), there may be at least two first-type light guiding openings 211 adjacent to each other along the second direction (such as the y-direction) integrally arranged; and/or there are at least two second-type light guiding openings 212 arranged integrally adjacent in the second direction. In other words, when the first-type light guiding openings 211 and the second-type light guiding openings 212 are alternately arranged in this order in the first direction, at least two first-type light guiding openings 211 adjacent in the second direction may be communicated such that at least two first-type light sensing units 111 adjacent in the second direction correspond to the same first-type light guiding opening 211, and/or at least two second-type light guiding openings 212 adjacent in the second direction may be communicated such that at least two second-type light sensing units 112 adjacent in the second direction correspond to the same second-type light guiding opening 212.

It should be noted that, fig. 10 only illustrates that the first light sensing units 111 arranged along the second direction correspond to the same first light guiding opening 211, and the second light sensing units 112 arranged along the second direction correspond to the same second light guiding opening 212, which is not limited to this arrangement. In other embodiments, the above design may be performed on one of the first-type light guiding openings 211 and the second-type light guiding openings 212, and it is only required that at least two first-type light sensing units 111 adjacent along the second direction correspond to the same first-type light guiding opening 211 or at least two second-type light sensing units 112 adjacent along the second direction correspond to the same second-type light guiding opening 212.

Fig. 11 is a schematic top view of a portion of another display device according to an embodiment of the invention, as shown in fig. 11, the optional first light guiding openings 211 include a plurality of first light guiding openings 2111, and light is incident on the same first light sensing unit 111 through the plurality of first light guiding openings 2111; the plurality of first light guiding openings 2111 are sequentially arranged in a direction intersecting the extending direction of the first light guiding openings 2111; and/or, the second type light guiding openings 212 comprise a plurality of second light guiding openings 2121, and light is incident to the same second type light sensing unit 112 through the plurality of second light guiding openings 2121; the plurality of second light guiding openings 2121 are disposed in sequence in a direction intersecting the extending direction of the second light guiding openings 2121. In this way, while avoiding the overlapping crosstalk of the light transmitted through the adjacent light-transmitting apertures 31, the light quantity incident on the first type light-sensing unit 111 can be improved by arranging the first type light-guiding opening 211 to include a plurality of first light-guiding openings 2111, so that the light is incident on the same first type light-sensing unit 111 through the plurality of first light-guiding openings 2111, and similarly, the light quantity incident on the second type light-sensing unit 112 can be improved by arranging the second type light-guiding opening 212 to include a plurality of second light-guiding openings 2121, so that the light is incident on the same second type light-sensing unit 112 through the plurality of second light-guiding openings 2121, so as to improve the optical sensitivity.

It should be noted that, in fig. 11, the first type light guiding opening 211 includes three first light guiding openings 2111, the second type light guiding opening 212 includes three second light guiding openings 2121, and this number is not limited to the illustration, so long as the misalignment directions of the plurality of first light guiding openings 2111 in the first type light guiding opening 211 with respect to the same first type light sensing unit 111 are guaranteed to be the same (for example, the first misalignment direction F1), the misalignment directions of the plurality of second light guiding openings 2121 in the second type light guiding opening 212 with respect to the same second type light sensing unit 112 are the same (for example, the second misalignment directions F2), and the two misalignment directions are all parallel to the connecting line directions of the adjacent light transmitting holes 31 and are opposite. In addition, in other embodiments, only the first type of light guiding opening 211 may be provided to include a plurality of first light guiding openings 2111, or only the second type of light guiding opening 212 may be provided to include a plurality of second light guiding openings 2121, which are not illustrated here.

Fig. 12 is another enlarged top view of the area P in fig. 2, and, in combination with fig. 2 and 12, two adjacent light-transmitting apertures 31 corresponding to the light overlap area (e.g., area S1) include a first light-transmitting aperture 311 and a second light-transmitting aperture 312; the optional first-type light guiding openings 211 include at least two first-type sub-light guiding openings 2110, and the light passing through the first light-transmitting apertures 311 is respectively incident to different first-type light sensing units 111 through the first-type sub-light guiding openings 2110; along the direction that the first light-transmitting small hole 311 points to the second light-transmitting small hole 312, the first sub-light guiding opening (such as 2110-3) with larger distance from the first light-transmitting small hole 311 has smaller dislocation degree with the corresponding first light-sensing unit 111; the second-type light guiding openings 212 include at least two second-type sub-light guiding openings 2120, and the light passing through the second light-transmitting apertures 312 is respectively incident to the different second-type light sensing units 112 through the second-type sub-light guiding openings 2120; along the direction that the first light-transmitting aperture 311 points to the second light-transmitting aperture 312, the second sub-light guiding opening (e.g., 2120-3) with a larger distance from the second light-transmitting aperture 312 has a smaller degree of misalignment with the corresponding second light-sensing unit 112.

Specifically, in the present embodiment, the misalignment directions of the first type sub-light guiding openings 2110 in the first type light guiding openings 211 with respect to the corresponding first type light sensing units 111 are the same, and the difference is that, along the direction in which the first light transmitting apertures 311 point to the second light transmitting apertures 312, the misalignment degree of each first type sub-light guiding opening 2110 is different from the corresponding first type light sensing unit 111, and the larger the distance between the first type sub-light guiding opening 2110 and the first light transmitting aperture 311 is, the smaller the misalignment degree of the first type sub-light guiding opening 2110 with respect to the corresponding first type light sensing unit 111 is. Similarly, the misalignment directions of the second sub-light guiding openings 2120 in the second light guiding openings 212 with respect to the second light sensing units 112 corresponding thereto are the same, and the difference is that the misalignment degree between each second sub-light guiding opening 2120 and the corresponding second light sensing unit 112 is different along the direction in which the first light transmitting aperture 311 points to the second light transmitting aperture 312, and the larger the distance between the second sub-light guiding opening 2120 and the second light transmitting aperture 312 is, the smaller the misalignment degree between the second sub-light guiding opening 2120 and the corresponding second light sensing unit 112 is.

For example, fig. 12 illustrates that the first type light guiding opening 211 includes three first type sub-light guiding openings 2110, the second type light guiding opening 212 includes three second type sub-light guiding openings 2120, and as shown in fig. 2 and 12, the distances between the first type sub-light guiding openings 2110-1, 2110-2, 2110-3 and the first light-transmitting apertures 311 are gradually increased, the misalignment degree between the three and their corresponding first type light-sensing units 111 is gradually decreased, and the distances between the second type sub-light guiding openings 2120-1, 2120-2, 2120-3 and the second light-transmitting apertures 312 are gradually increased, and the misalignment degree between the three and their corresponding second type light-sensing units 112 is gradually decreased.

According to the embodiment, by arranging the first sub-light guiding openings (such as 2110-3) with larger distance from the first light transmitting small hole 311 and smaller dislocation degree of the corresponding first light sensing units 111, the distance between the first sub-light guiding openings 2110 and the corresponding first light sensing units 111 along the direction of the first light transmitting small hole 311 pointing to the second light transmitting small hole 312 is gradually reduced, so that the characteristic that the incident angle of the light transmitting light of the first light transmitting small hole 311 is gradually increased can be adapted, and the light transmitted by the first light sensing units 111 can be received through the first sub-light guiding openings 2110, and the imaging quality of the first light sensing units 111 is ensured. Similarly, along the direction in which the second light-transmitting aperture 312 points to the first light-transmitting aperture 311, the incident angle of the light incident from the second light-transmitting aperture 312 onto the light guiding layer 20 is gradually increased, and in this embodiment, by providing the second sub-light guiding openings (e.g. 2120-3) with a larger distance from the second light-transmitting aperture 312, the dislocation degree of the second light-sensing units 112 corresponding to the second sub-light guiding openings is smaller, so that the distance between the second sub-light guiding openings 2120 and the corresponding second light-sensing units 112 along the direction in which the second light-transmitting aperture 312 points to the first light-transmitting aperture 311 is gradually decreased, thereby adapting to the characteristic that the incident angle of the light transmitted by the second light-transmitting aperture 312 is gradually increased, and ensuring that each second light-sensing unit 112 can receive the light transmitted by the second light-transmitting aperture 312 through the second sub-light guiding opening 2120 and ensuring the imaging quality of the second light-sensing units 112.

It should be noted that, fig. 12 only illustrates an example in which the first-type light guiding openings 211 and the second-type light guiding openings 212 are alternately arranged along the second direction (e.g., the y direction), and for the arrangement manner of the first-type light guiding openings 211 and the second-type light guiding openings 212 described in the foregoing embodiments, the design may be made for the plurality of first-type sub-light guiding openings 2110 arranged along the first direction (e.g., the x direction) in the first-type light guiding openings 211, that is, as the distance between the first-type sub-light guiding openings 2110 and the first light-transmitting apertures 311 is larger, the misalignment degree of the first-type sub-light guiding openings 2110 relative to the corresponding first-type light-sensing units 111 is smaller. Similarly, the design may be made for a plurality of second-type sub-light guiding openings 2120 arranged along the first direction (such as the x-direction) in the second-type light guiding openings 212, that is, as the distance between the second-type sub-light guiding openings 2120 and the second light-transmitting apertures 312 is larger, the misalignment degree of the second-type sub-light guiding openings 2120 with respect to the corresponding second-type light-sensing units 112 is smaller. For example, fig. 13 is a schematic view of a partial top view structure of another display device according to an embodiment of the present invention, and referring to fig. 2 and fig. 13, the first-type light guiding openings 211 and the second-type light guiding openings 212 are alternately arranged along a first direction (such as an x-direction), specifically, a plurality of first-type sub-light guiding openings 2110 in the first-type light guiding openings 211 and a plurality of second-type sub-light guiding openings 2120 in the second-type light guiding openings 212 are alternately arranged along the first direction, and point to the second light-transmitting small hole 312 along the first light-transmitting small hole 311 (such as an x-direction), and the first-type sub-light guiding openings (such as 2110-3) with a larger distance from the first light-transmitting small hole 311 have a smaller misalignment degree with respect to the first-type light-sensing unit 111; along the direction that the first light-transmitting aperture 311 points to the second light-transmitting aperture 312, the second sub-light guiding opening (e.g., 2120-3) with a larger distance from the second light-transmitting aperture 312 has a smaller degree of misalignment with the corresponding second light-sensing unit 112.

In the above embodiments, two different types of light guiding openings 21 (i.e., the first type of light guiding opening 211 and the second type of light guiding opening 212) are disposed in the light guiding layer 20, so that a portion of the light sensing units (e.g., the first type of light sensing unit 111) in the light overlapping region (e.g., the region S1) is used for receiving the transmitted light of the first light transmitting aperture 311 in the two adjacent light transmitting apertures 31, and the other portion of the light sensing units (e.g., the second type of light sensing unit 112) is used for receiving the transmitted light of the second light transmitting aperture 312 in the two adjacent light transmitting apertures 31, thereby solving the problem of overlapping crosstalk of the transmitted light of the adjacent light transmitting apertures 31. As another possible embodiment, only one type of light guiding opening 21 may be provided in the light guiding layer 20, and at this time, the imaging crosstalk problem may be solved by adopting the following scheme: optionally, the photosensitive layer 10 and/or the light guiding layer 20 may be slidably disposed along a connecting direction (i.e., the first direction) of two adjacent light-transmitting apertures 31 corresponding to the light overlapping region, and in different states, the light guiding opening 21 and the light sensing unit 11 may have different relative positions.

For example, when the photosensitive layer 10 and the light guiding layer 20 are not disposed in the display panel, the photosensitive layer 10 and/or the light guiding layer 20 may be disposed to be capable of sliding along the first direction, and embodiments of the present invention are not limited thereto. In this embodiment, by sliding the photosensitive layer 10 and/or the light guiding layer 20, the light guiding opening 21 and the corresponding light sensing unit 11 can have different relative positions in different states, so that the light guiding opening 21 and the corresponding light sensing unit 11 in different states have different dislocation directions, so that the light sensing units 11 in the light overlapping region (e.g. region S1) are respectively used for receiving the light transmitted by different light transmitting apertures in the two adjacent light transmitting apertures 31 in different states, and overlapping crosstalk of the light transmitted by the two adjacent light transmitting apertures 31 is avoided. Moreover, the arrangement mode can make all the light sensing units 11 in the light overlapping area (such as the area S1) receive the transmitted light of the adjacent first light transmitting small hole 311 and second light transmitting small hole 312 in a time sharing way, so that the number of the light sensing units 11 for receiving the transmitted light of the first light transmitting small hole 311/second light transmitting small hole 312 in the same time can be increased, the pixel density is improved, and the imaging quality is ensured.

Specifically, the photosensitive layer 10 and the light guiding layer 20 after sliding may include two states, such as a first state in which the light guiding opening 21 in the light guiding layer 20 and the corresponding light sensing unit 11 have a first misalignment direction, and a second state in which the light guiding opening 21 in the light guiding layer 20 and the corresponding light sensing unit 11 have a second misalignment direction, and the first misalignment direction and the second misalignment direction are opposite, and are parallel to the connecting direction (i.e., the first direction) of the two adjacent light transmitting apertures 31 corresponding to the light overlapping region. In other words, in the first state, all the light guiding openings 21 in the light guiding layer 20 are equivalent to the "first-type light guiding openings 211" in the above-described embodiment, and in the second state, all the light guiding openings 21 in the light guiding layer 20 are equivalent to the "second-type light guiding openings 212" in the above-described embodiment. Thus, in the first state, the light guiding opening 21 in the light guiding layer 20 can guide part of the light transmitted by one of the two adjacent light transmitting holes 31 to the light sensing unit 11 in the light overlapping region, and in the second state, the light guiding opening 21 in the light guiding layer 20 can guide part of the light transmitted by the other light transmitting hole 31 to the light sensing unit 11 in the light overlapping region, so that the light sensing unit 11 in the light overlapping region can simultaneously receive the light transmitted by the two adjacent light transmitting holes 31, and imaging crosstalk is avoided.

Fig. 14 is a schematic diagram showing a relative positional relationship between the photosensitive layer and the light guiding layer in the first state in the embodiment of the present invention, and fig. 15 is a schematic diagram showing a relative positional relationship between the photosensitive layer and the light guiding layer in the second state in the embodiment of the present invention. As shown in fig. 2 and 14, in the first state, by sliding the light guiding layer 20 and/or the photosensitive layer 10 along the first direction, the light guiding opening 21 is located on the side of the central axis of the light sensing unit 11 near the first light transmitting hole 311, at this time, part of the light incident on the light guiding layer 20 from the first light transmitting hole 311 may be incident on the light sensing unit 11 through the light guiding opening 21, and the light incident on the light guiding layer 20 from the second light transmitting hole 312 may not be incident on the light sensing unit 11 through the light guiding layer 20; as shown in fig. 2 and 15, in the second state, by sliding the light guiding layer 20 and/or the photosensitive layer 10 along the first direction, the light guiding opening 21 is located on one side of the central axis of the light sensing unit 11 near the second light transmitting aperture 312, at this time, part of the light incident on the light guiding layer 20 from the second light transmitting aperture 312 may be incident on the light sensing unit 11 through the light guiding opening 21, and the light incident on the light guiding layer 20 from the first light transmitting aperture 311 may not be incident on the light sensing unit 11 through the light guiding layer 20, so that the light sensing unit 11 in the light overlapping area may be prevented from receiving the light transmitted by the two adjacent light transmitting apertures 31 at the same time, thereby causing imaging crosstalk.

It should be noted that, fig. 14 and fig. 15 only illustrate an example in which the light guiding openings 21 are disposed in a one-to-one correspondence with the light sensing units 11 in the light overlapping region, and in other embodiments, two adjacent pairs of light guiding openings 21 along the second direction may be communicated, so that a plurality of light sensing units 11 arranged along the second direction may correspond to the same light guiding opening 21.

On the basis of any of the above embodiments, specific arrangement positions of the photosensitive layer 10, the light guiding layer 20, and the light shielding layer 30 will be described in detail below.

As a possible implementation manner, fig. 16 is a schematic view of a partial cross-sectional structure of a display device according to an embodiment of the present invention, as shown in fig. 16, the display device 100 further includes a display panel 101, the optional photosensitive layer 10 is disposed on a non-light-emitting side of the display panel 101, and the light guiding layer 20 is disposed between the photosensitive layer 10 and the display panel 101.

In this embodiment, the light shielding layer 30 may be disposed in the display panel 101, for example, a light-impermeable film structure, such as a metal layer, in the display panel 101 may be reused, and the light-permeable aperture 31 may be formed by punching. In this embodiment, the photosensitive layer 10 is disposed on the non-light-emitting side of the display panel 101, and the light guiding layer 20 is disposed between the photosensitive layer 10 and the display panel 101, so that the distance between the light guiding layer 20 and the photosensitive layer 10 is smaller, which is beneficial to ensuring the accuracy of the light guiding effect.

As another possible implementation, fig. 17 is a schematic view of a partial cross-sectional structure of another display device according to an embodiment of the present invention, where, as shown in fig. 17, an optional photosensitive layer 10 is disposed on a non-light-emitting side of a display panel 101, and a light guiding layer 20 and a light shielding layer 30 are disposed in the display panel 101. By this arrangement, the light guide layer 20 having the light guide opening and the light shielding layer 30 having the light transmitting aperture 31 can be formed by multiplexing the light-impermeable film layer in the display panel 101, and thus, the structure can be simplified and the thickness of the display device can be reduced.

Illustratively, with continued reference to FIG. 17, the display panel 101 includes a substrate 1018 and, in order, a first metal layer 1011, a second metal layer 1012, a capacitor plate layer 1013, a third metal layer 1014, a fourth metal layer 1015, a planarization layer 1016, and a pixel defining layer 1017 on one side of the substrate 1018; when the light guiding layer 20 and the light shielding layer 30 are both disposed in the display panel 101, the optional light guiding layer 20 multiplexes the first metal layer 1011, the second metal layer 1012, the capacitor plate layer 1013, the third metal layer 1014, the fourth metal layer 1015, or the planarization layer 1016, and the light shielding layer 30 multiplexes the second metal layer 1012, the capacitor plate layer 1013, the third metal layer 1014, the fourth metal layer 1015, the planarization layer 1016, or the pixel defining layer 1017. Fig. 17 illustrates an example in which the light shielding layer 30 multiplexes the pixel defining layer 1017, and the light guiding layer 20 multiplexes the capacitor electrode layer 1013, as long as the light guiding layer 20 is located between the light shielding layer 30 and the photosensitive layer 10. The light guiding layer 20 is preferably located in a film layer close to the photosensitive layer 10 to improve the accuracy of the light guiding effect.

As another possible embodiment, the optional photosensitive layer 10, the light guiding layer 20, and the light shielding layer 30 are all disposed in the display panel 101. In this way, the preparation of the photosensitive layer 10 kinds of light sensing units can be integrated in the preparation of the display panel 101, improving the integration and reliability of the display device.

Fig. 18 is a schematic view of a partial cross-sectional structure of another display device according to an embodiment of the present invention, where, as shown in fig. 18, the alternative display device 100 further includes a display panel 101, the display panel 101 further includes an array substrate, the array substrate further includes a pixel circuit, and the pixel circuit includes a first thin film transistor T1 and a second thin film transistor T2; the first thin film transistor T1 includes a polysilicon active layer 41, and the second thin film transistor T2 includes an oxide semiconductor active layer 42.

As shown in fig. 18, the pixel circuit is formed in a film layer below the light emitting element D for driving the light emitting element D to emit light. Specifically, the pixel circuit includes metal layers such as the second metal layer 1012, the capacitor plate layer 1013, the third metal layer 1014, the fourth metal layer 1015, and the like described in the above embodiments, and insulating layers including the above planarization layer 1016 and insulating layers between adjacent metal layers (see fig. 17) which are alternately arranged. Further, the pixel circuit includes a thin film transistor T and a capacitor C, the array substrate may include a plurality of pixel circuits, and specific embodiments of the pixel circuits may be set by those skilled in the art according to practical situations, and exemplary pixel circuits include "7T1C", "2T1C", and so on, where "T" represents the thin film transistor and "C" represents the capacitor.

In this embodiment, two kinds of transistors are disposed in the array substrate, so that different advantages of the two kinds of transistors can be fully exerted, and excellent performance of the array substrate is ensured. Specifically, as shown in fig. 18, the first thin film transistor includes a polysilicon active layer 41, for example, the first thin film transistor T1 may be a low temperature polysilicon transistor (Low Temperature Poly-Silicon LTPS), which has advantages of high switching speed, high carrier mobility, and low power consumption. The second thin film transistor T2 includes an oxide semiconductor active layer, for example, the second thin film transistor T2 is an indium gallium zinc oxide transistor (Indium Gallium Zinc Oxide IGZO), and has the advantages of simple preparation process and small leakage current. The pixel circuit provided by the embodiment of the invention comprises the first thin film transistor T1 and the second thin film transistor T2, namely the low-temperature polycrystalline oxide (Low Temperature Polycrystalline Oxide LTPO), so that the advantages of different transistors can be fully exerted, the excellent performance of the pixel circuit is ensured, and the driving efficiency is high.

Finally, it should be noted that the display device 100 provided in the embodiment of the present invention may be any electronic product with a display function, including but not limited to the following categories: the embodiment of the invention is not particularly limited to a mobile phone, a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. The display device is characterized by comprising a photosensitive layer, a light guiding layer and a shading layer, wherein the light guiding layer is positioned between the photosensitive layer and the film layer where the shading layer is positioned;

the light shielding layer is internally provided with a light transmission small hole, the photosensitive layer comprises a plurality of photosensitive units, and light transmitted through the light transmission small hole is incident to the photosensitive units;

A light guiding opening is arranged in the light guiding layer, and the light guiding opening is staggered with the light sensing unit; the center of the light guiding opening is offset from the center of the light sensing unit.

2. The display device of claim 1, wherein there is a light overlap region for light transmitted by adjacent two of the light-transmissive apertures;

The light guiding openings at least comprise a first type of light guiding opening and a second type of light guiding opening; the light rays passing through the light ray overlapping area are incident to a first type light sensing unit through the first type light ray guiding opening, and the light rays passing through the light ray overlapping area are incident to a second type light sensing unit through the second type light ray guiding opening;

The relative positional relationship between the first-type light guiding opening and the first-type light sensing unit is different from the relative positional relationship between the second-type light guiding opening and the second-type light sensing unit.

3. The display device of claim 2, wherein the first type of light guiding openings have a first direction of misalignment relative to the first type of light sensing units, and the second type of light guiding openings have a second direction of misalignment relative to the second type of light sensing units;

The first dislocation direction and the second dislocation direction are opposite in direction and are parallel to the connecting line directions of two adjacent light-transmitting small holes corresponding to the light overlapping area.

4. The display device according to claim 2, wherein a connecting line direction of two adjacent light-transmitting apertures corresponding to the light-overlapping region is a first direction;

the extending direction of the first-type light guiding opening and/or the extending direction of the second-type light guiding opening intersect with the first direction.

5. The display device of claim 4, wherein the first type of light directing openings and the second type of light directing openings are alternately arranged in sequence along the first direction;

Or along a second direction, the first-type light guiding openings and the second-type light guiding openings are alternately arranged in turn, and the second direction is parallel to the plane where the light guiding layer is located and intersects with the first direction;

Or along the first direction and the second direction, the first type light guiding openings and the second type light guiding openings are alternately arranged in sequence.

6. The display device of claim 5, wherein the first type of light directing openings and the second type of light directing openings are alternately arranged in sequence along the first direction;

At least two adjacent first-type light guide openings along the second direction are integrally arranged; and/or, there are at least two light guiding openings of the second kind adjacent in the second direction integrally arranged.

7. The display device of claim 2, wherein the first type of light guiding openings comprise a plurality of first light guiding openings through which the light is incident to the same first type of light sensing unit; the plurality of first light guide openings are sequentially arranged along the direction intersecting with the extending direction of the first light guide openings;

And/or the second type light guiding opening comprises a plurality of second light guiding openings, and the light is incident to the same second type light sensing unit through the plurality of second light guiding openings; the plurality of second light guiding openings are sequentially arranged along the direction intersecting with the extending direction of the second light guiding openings.

8. The display device according to claim 2, wherein two adjacent light-transmitting apertures corresponding to the light-overlapping region include a first light-transmitting aperture and a second light-transmitting aperture;

the first type light guide opening comprises at least two first type sub-light guide openings, and the light rays passing through the first light transmission small holes are respectively incident into different first type light sensing units through the first type sub-light guide openings;

the first sub-light guide openings with larger distance from the first light-transmitting small holes are along the direction that the first light-transmitting small holes point to the second light-transmitting small holes, and the dislocation degree of the first light-sensing units corresponding to the first sub-light guide openings is smaller;

The second-type light guide opening comprises at least two second-type sub-light guide openings, and the light rays passing through the second light-transmitting small holes are respectively incident into different second-type light sensing units through the second-type sub-light guide openings;

The second type sub-light guide opening with larger distance from the second light transmission small hole is smaller along the direction that the first light transmission small hole points to the second light transmission small hole, and the dislocation degree of the second type light sensing unit corresponding to the second type sub-light guide opening is smaller.

9. The display device according to claim 1, wherein a connecting line direction of two adjacent light-transmitting apertures corresponding to the light-overlapping region is a first direction;

The light guiding layer and/or the light sensing layer can be slidably arranged along the first direction, and the light guiding opening and the light sensing unit have different relative positions under different states.

10. The display device of claim 1, wherein the orthographic projection of the light overlapping area on the plane of the light shielding layer is at least located in the central area of two adjacent light transmitting apertures.

11. The display device according to claim 1, wherein the display device further comprises a display panel;

The light guide layer is arranged between the light sensitive layer and the display panel;

or the photosensitive layer is arranged on the non-light-emitting side of the display panel, and the light guiding layer and the shading layer are both arranged in the display panel;

or the photosensitive layer, the light guiding layer and the shading layer are all arranged in the display panel.

12. The display device according to claim 11, wherein the light guiding layer and the light shielding layer are both provided in the display panel;

the display panel comprises a substrate, a first metal layer, a second metal layer, a capacitance electrode layer, a third metal layer, a fourth metal layer, a planarization layer and a pixel definition layer, wherein the first metal layer, the second metal layer, the capacitance electrode layer, the third metal layer, the fourth metal layer, the planarization layer and the pixel definition layer are sequentially arranged on one side of the substrate;

The light guiding layer multiplexes the first metal layer, the second metal layer, the capacitor electrode layer, the third metal layer, the fourth metal layer, or the planarization layer;

The light shielding layer multiplexes the second metal layer, the capacitor plate layer, the third metal layer, the fourth metal layer, the planarization layer, or the pixel definition layer.

13. The display device according to claim 1, further comprising a display panel, wherein the display panel further comprises an array substrate, wherein the array substrate further comprises a pixel circuit comprising a first thin film transistor and a second thin film transistor;

The first thin film transistor includes a polycrystalline silicon active layer, and the second thin film transistor includes an oxide semiconductor active layer.