CN220326166U

CN220326166U - Display substrate and display device

Info

Publication number: CN220326166U
Application number: CN202321611249.7U
Authority: CN
Inventors: 徐传祥; 舒适; 于勇; 刘鑫华; 李翔; 岳阳; 李少辉
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-01-09
Anticipated expiration: 2033-06-21

Abstract

The utility model relates to the technical field of display, and provides a display substrate, which comprises: the display device comprises a plurality of first type display areas and a second type display area positioned on at least one side of the plurality of first type display areas. The light transmittance of the second type display area is less than or equal to the light transmittance of the plurality of first type display areas. The plurality of first type display regions satisfy at least one of: the at least one first type of display area comprises: a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of first pixel circuits provided over a substrate; the at least one first type of display area comprises: a plurality of first light emitting elements and a plurality of first pixel circuits provided on a substrate, and at least another first type display region includes: a plurality of second light emitting elements disposed on the substrate. The at least one first pixel circuit is electrically connected to the at least one first light emitting element, and the at least one second light emitting element is electrically connected to the at least one second pixel circuit in the second type display area.

Description

Display substrate and display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display substrate and a display device.

Background

An organic light emitting diode (OLED, organic Light Emitting Diode) and a Quantum-dot light emitting diode (QLED, quantum-dot Light Emitting Diode) are active light emitting display devices, and have advantages of self-luminescence, wide viewing angle, high contrast, low power consumption, extremely high reaction speed, thinness, flexibility, low cost, and the like. The under-screen camera technology is a brand new technology proposed for improving the screen occupation ratio of the display device.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the utility model provides a display substrate and a display device.

In one aspect, the present embodiment provides a display substrate, including: a plurality of first type display areas, a second type display area located on at least one side of the plurality of first type display areas; the light transmittance of the second type display region is less than or equal to the light transmittance of the plurality of first type display regions. The plurality of first type display regions satisfy at least one of: at least one first type display region of the plurality of first type display regions includes: a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of first pixel circuits provided over a substrate; at least one first type display region of the plurality of first type display regions includes: a plurality of first light emitting elements and a plurality of first pixel circuits provided on a substrate, and at least another first type display region includes: a plurality of second light emitting elements disposed on the substrate. Wherein at least one first pixel circuit of the plurality of first pixel circuits is electrically connected to at least one first light emitting element of the plurality of first light emitting elements, and at least one second light emitting element of the plurality of second light emitting elements is electrically connected to at least one second pixel circuit of the plurality of second pixel circuits located in the second type display region.

In some exemplary embodiments, the at least one first type of display area includes: a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of first pixel circuits. In the at least one first type display region, adjacent first pixel circuits along a first direction are electrically connected through at least one first circuit lead, adjacent first pixel circuits along a second direction are electrically connected through at least one second circuit lead, and at least one second light emitting element is electrically connected with at least one second pixel circuit located in the second type display region through at least one conductive connection line; the first direction intersects the second direction. The at least one electrically conductive connection line is located on a side of the at least one first circuit lead and the at least one second circuit lead remote from the substrate.

In some exemplary embodiments, in a direction perpendicular to the display substrate, the display substrate includes at least: a substrate, a circuit structure layer and a light emitting structure layer arranged on the substrate; the circuit structure layer at least comprises: the plurality of first pixel circuits and the plurality of second pixel circuits; the light emitting structure layer includes at least: the first plurality of light emitting elements and the second plurality of light emitting elements. The circuit structure layer at least comprises: the semiconductor device comprises a semiconductor layer, a first gate metal layer, a second gate metal layer, a first source drain metal layer, a first transparent conductive layer, a second source drain metal layer and at least one second transparent conductive layer, wherein the semiconductor layer, the first gate metal layer, the second gate metal layer, the first source drain metal layer, the first transparent conductive layer, the second source drain metal layer and the at least one second transparent conductive layer are arranged on the substrate. Wherein the at least one first circuit lead and the at least one second circuit lead are located in the first transparent conductive layer; the at least one conductive connection line is located in the at least one second transparent conductive layer.

In some exemplary embodiments, the first transparent conductive layer is located on a side of the first source drain metal layer adjacent to the substrate; or the first transparent conductive layer is positioned on one side of the first source-drain metal layer away from the substrate, and at least one insulating layer is arranged between the first transparent conductive layer and the first source-drain metal layer.

In some exemplary embodiments, the plurality of first light emitting elements of the at least one first type of display area include: a plurality of first light emitting elements emitting light of a first color, and a plurality of first light emitting elements emitting light of a second color; the plurality of second light emitting elements are configured to emit light of a third color. In the at least one first type of display region, the orthographic projection of the at least one first light emitting element emitting light of a first color on the substrate at least partially overlaps the orthographic projection of the connected first pixel circuit on the substrate; the at least one first light emitting element emitting light of the second color at least partially overlaps the orthographic projection of the connected first pixel circuit at the substrate. The orthographic projection of the at least one second light-emitting element emitting the third color light on the substrate and the orthographic projection of the connected second pixel circuit on the substrate are not overlapped.

In some exemplary embodiments, the at least one second light emitting element emitting light of a third color does not overlap with the orthographic projection of the first and second circuit leads on the substrate.

In some exemplary embodiments, the orthographic projection of the at least one second light emitting element emitting light of a third color on the substrate overlaps with the orthographic projection of the first circuit lead on the substrate and does not overlap with the orthographic projection of the second circuit lead on the substrate; or, the orthographic projection of the at least one second light-emitting element emitting the third color light on the substrate is overlapped with the orthographic projection part of the second circuit lead on the substrate, and is not overlapped with the orthographic projection of the first circuit lead on the substrate.

In some exemplary embodiments, the plurality of first type display regions includes: at least one first display area and at least one second display area; the light transmittance of the first display area is greater than the light transmittance of the second display area.

In some exemplary embodiments, the plurality of first type display regions includes: a first display area and two second display areas; the first display area and the two second display areas are arranged along one direction, and the first display area is positioned between the two second display areas.

In some exemplary embodiments, the first display area and the two second display areas are sequentially connected along the arrangement direction, or the first display area and the second display area adjacent along the arrangement direction are separated by the second type display area.

In some exemplary embodiments, the display substrate further includes: a light shielding layer positioned on one side of the plurality of first light emitting elements and the plurality of second light emitting elements away from the substrate; the infrared light transmittance of the light shielding layer is greater than or equal to the visible light transmittance.

In some exemplary embodiments, the display substrate further includes: the light shielding layer is provided with a plurality of light shielding openings, and at least one light filtering unit in the plurality of light filtering units is positioned in the corresponding light shielding opening. The light shielding layers of the second display area are arranged continuously, the light shielding layers of the first display area comprise a plurality of light shielding blocks which are arranged independently, and at least one light shielding block in the plurality of light shielding blocks is located around the at least one light filtering unit.

In some exemplary embodiments, the at least one first type of display region includes a plurality of cathodes of light emitting elements that are integrally formed with one another, and the integrally formed structure has a plurality of openings that do not overlap in orthographic projection of the substrate with orthographic projection of light emitting regions of the plurality of light emitting elements on the substrate.

In some exemplary embodiments, the at least one first type display region includes a plurality of cathodes of light emitting elements disposed independently, the cathodes of the plurality of light emitting elements being electrically connected by an auxiliary cathode, the auxiliary cathode being located on a side of the cathodes of the plurality of light emitting elements remote from the substrate, and the auxiliary cathode being of a transparent conductive material.

In some exemplary embodiments, the second type display area further includes: the display device comprises a plurality of third pixel circuits and a plurality of third light emitting elements, wherein at least one third pixel circuit in the plurality of third pixel circuits is electrically connected with at least one third light emitting element in the plurality of third light emitting elements, and the plurality of second pixel circuits are arranged among the plurality of third pixel circuits at intervals.

In some exemplary embodiments, the display substrate further includes: a third type display area located on at least one side of the second type display area; the light transmittance of the third type display region is smaller than the light transmittance of the plurality of first type display regions and larger than the light transmittance of the second type display region; alternatively, the third type display region has a light transmittance smaller than that of the second type display region, and the second type display region has a light transmittance smaller than that of the plurality of first type display regions. The third type display area includes: a plurality of fourth pixel circuits and a plurality of fourth light emitting elements, at least one of the plurality of fourth pixel circuits being electrically connected to at least one of the plurality of fourth light emitting elements.

In another aspect, the present embodiment provides a display device including the display substrate described above.

According to the display substrate provided by the embodiment, the pixel circuits are arranged in the same first type display area in a combined mode, or the pixel circuits are arranged in the plurality of first type display areas in an external mode and an internal mode, so that the plurality of first type display areas with higher light transmittance can be realized, different functional requirements (for example, the under-screen sensing and shooting functions are compatible) are met, and the user experience is improved. Moreover, the combination of the external mode and the internal mode of the pixel circuit is favorable for improving the size of the first type display area.

Other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

FIG. 1A is a schematic diagram of a display substrate according to at least one embodiment of the utility model;

FIG. 1B is a schematic diagram of a display substrate according to at least one embodiment of the utility model;

FIG. 2 is a schematic plan view of a display area of a display substrate according to at least one embodiment of the utility model;

FIG. 3 is a schematic diagram of a display substrate according to at least one embodiment of the utility model;

FIG. 4 is a schematic diagram of a first type display area of a display substrate according to at least one embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating connection between a second light emitting device and a second pixel circuit according to at least one embodiment of the present utility model;

FIG. 6 is a schematic partial cross-sectional view of a third type of display area according to at least one embodiment of the present utility model;

FIGS. 7A and 7B are schematic partial cross-sectional views of a second display area according to at least one embodiment of the utility model;

FIGS. 8A and 8B are schematic partial cross-sectional views of a first display area according to at least one embodiment of the utility model;

FIG. 9 is another exemplary illustration of a partial cross-section of a third type of display area in accordance with at least one embodiment of the present utility model;

FIG. 10 is a diagram illustrating another example of a partial cross section of a second display area according to at least one embodiment of the present utility model;

FIG. 11 is a partial cross-sectional view of a first display area according to at least one embodiment of the present utility model;

FIG. 12 is another exemplary illustration of a partial cross-section of a first display area according to at least one embodiment of the present utility model;

FIG. 13 is another exemplary schematic diagram of a partial cross section of a first display area according to at least one embodiment of the utility model;

FIG. 14 is a partial cross-sectional view of a second display area according to at least one embodiment of the present utility model;

FIG. 15 is another schematic view of a portion of a display substrate according to at least one embodiment of the utility model;

FIG. 16 is another schematic view of a portion of a display substrate according to at least one embodiment of the utility model;

FIG. 17 is another schematic view of a portion of a display substrate according to at least one embodiment of the utility model;

FIG. 18 is another schematic diagram of a display substrate according to at least one embodiment of the utility model;

FIG. 19 is a schematic view of a first type of display area according to at least one embodiment of the present utility model;

FIG. 20 is another schematic view of a display substrate according to at least one embodiment of the utility model;

FIG. 21 is a schematic diagram of a display device according to at least one embodiment of the utility model;

fig. 22 is a schematic partial cross-sectional view of a display device according to at least one embodiment of the utility model.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Embodiments may be implemented in a number of different forms. One of ordinary skill in the art will readily recognize the fact that the manner and content may be changed into other forms without departing from the spirit and scope of the present utility model. Therefore, the present utility model should not be construed as being limited to the following embodiments. Embodiments of the utility model and features of the embodiments may be combined with one another arbitrarily without conflict.

In the drawings, the size of one or more constituent elements, thicknesses of layers or regions may be exaggerated for clarity. Accordingly, one aspect of the utility model is not necessarily limited to this dimension, and the shape and size of one or more of the components in the drawings do not reflect true proportions. Further, the drawings schematically show ideal examples, and one embodiment of the present utility model is not limited to the shapes, numerical values, and the like shown in the drawings.

The ordinal numbers of "first", "second", "third", etc. in the present specification are provided to avoid mixing of constituent elements, and are not intended to be limited in number. The term "plurality" in the present utility model means two or more.

In the present specification, for convenience, words such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate an azimuth or a positional relationship, are used to describe the positional relationship of the constituent elements with reference to the drawings, only for convenience of description of the present specification and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. The positional relationship of the constituent elements is appropriately changed according to the direction of the described constituent elements. Therefore, the present utility model is not limited to the words described in the specification, and may be appropriately replaced according to circumstances.

In this specification, the terms "mounted," "connected," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection; may be a mechanical connection, or a connection; may be directly connected, or indirectly connected through intermediate members, or may be in communication with the interior of two elements. The meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to circumstances.

In this specification, "electrically connected" includes a case where constituent elements are connected together by an element having some electric action. The "element having a certain electric action" is not particularly limited as long as it can transmit an electric signal between the connected constituent elements. Examples of the "element having some electric action" include not only an electrode and a wiring but also a switching element such as a transistor, a resistor, an inductor, a capacitor, other elements having various functions, and the like.

In this specification, a transistor means an element including at least three terminals of a gate, a drain, and a source. The transistor has a channel region between a drain (drain electrode terminal, drain region, or drain electrode) and a source (source electrode terminal, source region, or source electrode), and a current can flow through the drain, the channel region, and the source. In this specification, a channel region refers to a region through which current mainly flows.

In this specification, the first pole may be a drain electrode, the second pole may be a source electrode, or the first pole may be a source electrode, and the second pole may be a drain electrode. In the case of using transistors having opposite polarities, or in the case of a change in current direction during circuit operation, the functions of the "source" and the "drain" may be exchanged with each other. Thus, in this specification, "source" and "drain" may be interchanged. In addition, the gate may also be referred to as a control electrode.

In the present specification, "parallel" means a state in which two straight lines form an angle of-10 ° or more and 10 ° or less, and therefore, a state in which the angle is-5 ° or more and 5 ° or less is also included. The term "perpendicular" refers to a state in which the angle formed by two straight lines is 80 ° or more and 100 ° or less, and thus includes a state in which the angle is 85 ° or more and 95 ° or less.

The term "light transmittance" as used herein refers to the ability of light to pass through a medium, and refers to the percentage of the light flux transmitted through a transparent or translucent body to the light flux incident thereto.

The terms "about" and "approximately" in the present utility model refer to a situation in which the limits are not strictly defined, and the process and measurement errors are allowed. In the present utility model, "substantially the same" means a case where the values differ by 10% or less.

In some implementations, OLED devices have become a mainstream display structure due to the characteristics of high color gamut, light weight, thin profile, flexibility, and the like. For a display device provided with a sensor (such as a front camera, an ambient light sensor, a distance sensor, an infrared emitter for face recognition, a sensor and other hardware), the design of a Liu-ai screen, a beauty tip, a water drop screen, a hole digging screen and the like is adopted at present to reduce the occupied space of the sensor in a display area so as to improve the screen occupation ratio of a display substrate. In order to improve the light transmittance of the sensor in a corresponding region (for example, referred to as a high transmittance region) of the display substrate, the light emitting element of the high transmittance region and the connected pixel circuit may be separately provided. However, since connection between the light emitting element and the pixel circuit is required through the conductive connection line, the arrangement space of the conductive connection line is limited, resulting in a limitation in the size of the high transmittance region. In addition, as the demands of users increase (such as the demands of taking photos or videos, detecting ambient light, detecting distance, recognizing face, etc.), the demands of users cannot be met by only providing a high-transmittance area on the display substrate.

The present embodiment provides a display substrate, including: the display device comprises a plurality of first type display areas and a second type display area positioned on at least one side of the plurality of first type display areas. The light transmittance of the second type display area is less than or equal to the light transmittance of the plurality of first type display areas. The plurality of first type display regions satisfy at least one of: at least one first type display region of the plurality of first type display regions includes: a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of first pixel circuits provided over a substrate; at least one first type display region of the plurality of first type display regions includes: a plurality of first light emitting elements and a plurality of first pixel circuits provided on a substrate, and at least another first type display region includes: a plurality of second light emitting elements disposed on the substrate. At least one first pixel circuit of the plurality of first pixel circuits is electrically connected with at least one first light emitting element of the plurality of first light emitting elements, and at least one second light emitting element of the plurality of second light emitting elements is electrically connected with at least one second pixel circuit of the plurality of second pixel circuits located in the second type display area.

In some examples, the first light emitting element and the first pixel circuit are disposed in the same first type display region, and the first pixel circuit to which the first light emitting element is connected is disposed in a built-in manner. The second light-emitting element is arranged in the first type display area, the second pixel circuit is arranged in the second type display area, and the second pixel circuit connected with the second light-emitting element is arranged in an external mode.

In some examples, the pixel circuits to which some light emitting elements of at least one first type of display region are connected may be disposed in an internal manner, and the pixel circuits to which other light emitting elements are connected may be disposed in an external manner. The pixel circuits are arranged in the same first type display area in a combined mode of external mode and internal mode, which is beneficial to improving the size of the first type display area and realizing the optimal combination of light transmittance and size. For example, the plurality of first type display regions may be combined with the pixel circuit in an external manner and an internal manner.

In some examples, the pixel circuits to which the light emitting elements of at least one first type of display region are connected may be externally disposed, and the pixel circuits to which the light emitting elements of at least another first type of display region are connected may be internally disposed. Among the plurality of first type display areas, one part of the first type display areas adopts an external mode to set the pixel circuits, and the other part of the first type display areas adopts an internal mode to set the pixel circuits. For example, among the two first-type display regions, one first-type display region may adopt a pixel circuit external mode, and the other first-type display region may adopt a pixel circuit internal mode. For another example, among three or more first type display regions, at least two first type display regions may be externally provided with pixel circuits, and the remaining first type display regions may be internally provided with pixel circuits. The combination of the external mode and the internal mode of the pixel circuit is realized through the plurality of first type display areas, and the plurality of first type display areas with different light transmittance can be realized to meet different functional requirements.

In some examples, among the plurality of first type display regions, at least one first type display region may employ a combination of a pixel circuit built-in manner and an external manner, at least one other first type display region may employ a pixel circuit built-in manner, and at least one other first type display region may employ a pixel circuit external manner. For example, among the three first type display regions, the first type display region may adopt a combination of an internal and external pixel circuit arrangement, the second first type display region may adopt an internal pixel circuit arrangement, and the third first type display region may adopt an external pixel circuit arrangement. For another example, in more than three first type display regions, at least two first type display regions may adopt a combination scheme of an internal and external pixel circuit mode, another first type display region may adopt an internal pixel circuit mode, and the remaining first type display region may adopt an external pixel circuit mode. For another example, among the three or more first type display regions, at least two first type display regions may adopt a pixel circuit built-in mode (or a pixel circuit built-out mode), another first type display region may adopt a combination of a pixel circuit built-in and a pixel circuit built-out mode, and the remaining first type display regions may adopt a pixel circuit built-out mode (or a pixel circuit built-in mode). Therefore, a plurality of first type display areas with different light transmittance can be realized to meet different functional requirements.

In some exemplary embodiments, the at least one first type of display region may include: a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of first pixel circuits. In at least one first type display region, adjacent first pixel circuits in a first direction may be electrically connected by at least one first circuit lead, and adjacent first pixel circuits in a second direction may be electrically connected by at least one second circuit lead. The first direction intersects the second direction, e.g. the first direction may be perpendicular to the second direction. The at least one second light emitting element may be electrically connected to at least one second pixel circuit located in the second type display area through at least one electrically conductive connection line. The at least one electrically conductive connection line may be located on a side of the at least one first circuit lead and the at least one second circuit lead remote from the substrate. The present example can ensure signal transmission between the first pixel circuits by providing the first circuit lead and the second circuit lead.

In some exemplary embodiments, in a direction perpendicular to the display substrate, the display substrate may include at least: the light emitting diode comprises a substrate, a circuit structure layer and a light emitting structure layer, wherein the circuit structure layer and the light emitting structure layer are arranged on the substrate. The circuit structure layer at least comprises: a plurality of first pixel circuits and a plurality of second pixel circuits; the light emitting structure layer includes at least: a plurality of first light emitting elements and a plurality of second light emitting elements. The circuit structure layer may include at least: the semiconductor device comprises a semiconductor layer, a first gate metal layer, a second gate metal layer, a first source drain metal layer, a first transparent conductive layer, a second source drain metal layer and at least one second transparent conductive layer, which are arranged on a substrate. Wherein the at least one first circuit lead and the at least one second circuit lead may be located in the first transparent conductive layer; the at least one electrically conductive connection line may be located in the at least one second transparent conductive layer. The present example can avoid the first circuit lead and the second circuit lead from affecting the light transmittance of the first type display area by disposing the first circuit lead and the second circuit lead at the first transparent conductive layer.

In some examples, the first transparent conductive layer may be located on a side of the first source drain metal layer that is adjacent to the substrate, e.g., an insulating layer may not be disposed between the first transparent conductive layer and the first source drain metal layer. Alternatively, the first transparent conductive layer may be located at a side of the first source drain metal layer away from the substrate, and at least one insulating layer may be disposed between the first transparent conductive layer and the first source drain metal layer. For example, an insulating layer may be disposed between the first transparent conductive layer and the first source drain metal layer. The film layer arrangement mode of the first transparent conductive layer and the first source drain metal layer of the embodiment can ensure the flatness of the film layer, avoid adding the film layer or the perforating process and reduce the cost.

In some exemplary embodiments, the plurality of first type display regions may include: at least one first display area and at least one second display area. The light transmittance of the first display region may be greater than the light transmittance of the second display region. By setting the first type display areas with different light transmittance, different functional requirements can be met.

In some exemplary embodiments, the display substrate may further include: a light shielding layer located on a side of the plurality of first light emitting elements and the plurality of second light emitting elements away from the substrate; the light shielding layer may have an infrared light transmittance that is greater than or equal to a visible light transmittance. This example realizes the difference in infrared light transmittance and visible light transmittance of each display region by providing the light shielding layer.

In some exemplary embodiments, the display substrate may further include: the light shielding layer may have a plurality of light shielding openings, and at least one of the plurality of light filtering units may be located in the corresponding light shielding opening. The light shielding layer of the second display area may be continuously disposed, and the light shielding layer of the first display area may be partially continuously or discontinuously disposed. For example, the light shielding layer of the first display region may include a plurality of light shielding blocks that are independently disposed, and at least one of the plurality of light shielding blocks may be positioned around the at least one light filtering unit. This example supports the difference in light transmittance of the first display region and the second display region by setting the structural difference of the light shielding layer in the first display region and the second display region.

The scheme of the present embodiment is illustrated by some examples below.

Fig. 1A is a schematic view of a display substrate according to at least one embodiment of the utility model. FIG. 1B is a schematic diagram of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 1A and 1B, the display substrate may include: a display area AA and a peripheral area (not shown) surrounding the periphery of the display area AA. The display area AA may include: a plurality of first type display areas (e.g., three first type display areas), a second type display area A2, and a third type display area A3. The plurality of first type display regions may be located at a top middle position of the display area AA, and the second type display region A2 may be located at least one side of the three first type display regions, for example, around the three first type display regions. The third type display area A3 may be located at least one side of the second type display area A2, for example, may surround the circumference of the second type display area A2. However, the present embodiment is not limited thereto. In other examples, the plurality of first type display regions may be located in other positions such as the upper left or upper right corner of the display area.

In some examples, as shown in fig. 1A and 1B, three first type display regions may include: one first display area a11, and two second display areas a12 and a13. The three first type display regions may be sequentially disposed along the second direction Y. The first display area a11 may be located in the middle of the two second display areas a12 and a13 in the second direction Y. For example, the second display area a12 may be located at one side of the first display area a11 in the second direction Y, and the second display area a13 may be located at one side of the first display area a11 in the opposite direction of the second direction Y. However, the present embodiment is not limited thereto. In other examples, the first display area a11, the two second display areas a12 and a13 may be sequentially arranged in the second direction Y or in the opposite direction of the second direction Y. In other examples, the plurality of first type display regions may include: a first display area and a second display area arranged in the first direction X, or may include a first display area and a second display area arranged in the second direction Y.

In some examples, as shown in fig. 1A and 1B, the first display area a11 and the two second display areas a12 and a13 may be sequentially connected along the arrangement direction (e.g., the second direction Y), and the first display area A1 may be connected between the two second display areas a12 and a13. The second type display area A2 may be located in an area other than the three first type display areas. However, the present embodiment is not limited thereto. In other examples, two first type display regions adjacent along the arrangement direction (e.g., the second direction Y) may not be connected, and the first display region and the two second display regions may be separated by the second type display region.

In some examples, as shown in fig. 1A and 1B, the display area AA may be substantially rectangular. As shown in fig. 1A, the three first type display regions may be substantially identical in shape, for example, the first display region a11, and the two second display regions a12 and a13 may each be circular or elliptical. In other examples, as shown in FIG. 1B, the plurality of first type display regions may be partially identical in shape. The total shape of the three first type display regions may be substantially rounded rectangular or elliptical, the shape of the first display region a11 may be substantially circular, and the center of the first display region a11 may be the same as the center position of the total shape of the three first type display regions. However, the present embodiment is not limited thereto. For example, the first display area may be rectangular, and the second display area may be circular or elliptical. In other examples, the shapes of the two second display regions may be different, for example, one second display region may be rectangular in shape and the other second display region may be elliptical or circular in shape.

In some examples, the light transmittance of the plurality of first type display regions may be greater than or equal to the light transmittance of the third type display region A3, and the light transmittance of the third type display region A3 may be greater than or equal to the light transmittance of the second type display region A2. For example, the light transmittance of the third type display area A3 may be smaller than that of the plurality of first type display areas and larger than that of the second type display area A2. Alternatively, the light transmittance of the third type display area A3 may be smaller than that of the second type display area A2, and the light transmittance of the second type display area A2 may be smaller than that of the plurality of first type display areas.

In some examples, the first type of display region may also be referred to as a light transmissive display region, the second type of display region A2 may also be referred to as a transitional display region, and the third type of display region A3 may also be referred to as a normal display region. The second type display area A2 and the third type display area A3 may be configured to perform image display. The plurality of first type display regions may be configured to display images and support functions of the off-screen setting device.

In some examples, the light transmittance of the first display area a11 may be greater than or equal to the light transmittance of the second display areas a12 and a 13. For example, the light transmittance of the first display area a11 may be greater than the light transmittance of the second display areas a12 and a13, the light transmittance of the second display areas a12 and a13 may be substantially the same, or the light transmittance of the second display area a12 may be greater than the light transmittance of the second display area a13, or the light transmittance of the second display area a12 may be less than the light transmittance of the second display area a 13.

In some examples, the light transmittance of each region may include a visible light transmittance and an infrared light transmittance. For example, the infrared light transmittance of each region may be greater than or equal to the visible light transmittance. In this embodiment, visible light refers to a portion of the electromagnetic spectrum that can be perceived by the human eye, for example, wavelengths between 380 and 780 nanometers (nm). Infrared refers to electromagnetic waves in the infrared band between visible and microwave, with wavelengths in the range 780 to 3000 nanometers.

In some examples, the functions corresponding to the plurality of first type display regions may be different or partially identical. For example, the first display area a11 may be configured to support transmission of visible light, so that a camera disposed under the screen may receive the visible light, to implement a photographing or image capturing function; the front projection of the camera on the display substrate may at least partially overlap the first display area a 11. The functions corresponding to the two second display areas a12 and a13 may be the same, for example, the second display areas may be configured to support infrared light transmission, so that the infrared sensor disposed under the screen may transmit infrared light, so that the functions of face recognition and the like are realized by using infrared light. For example, the front projection of the infrared sensor on the display substrate may at least partially overlap the second display areas a12 and a 13. The present embodiment is not limited thereto. In other examples, the corresponding functions of the two second display regions may be different, e.g., one second display region may be configured to support distance sensing and the other second display region may be configured to support ambient light sensing.

In some examples, the ratio of the resolutions of the first type display area and the second type display area A2 may be about 0.8 to 1.2. For example, the resolution of the first type display area may be substantially the same as the resolution of the second type display area A2. The resolution of the third type display area A3 may be substantially the same as the resolution of the second type display area A2. The present embodiment is not limited thereto.

Fig. 2 is a schematic plan view of a display area of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 2, the display area may include a plurality of pixel units P, and at least one pixel unit P may include: a subpixel P1 emitting light of a first color, a subpixel P2 emitting light of a second color, and subpixels P3 and P4 emitting light of a third color. In some examples, subpixel P1 may be a red subpixel (R) emitting red light, subpixel P2 may be a blue subpixel (B) emitting blue light, and subpixels P3 and P4 may be green subpixels (G) emitting green light.

In some examples, each sub-pixel may include a pixel circuit and a light emitting element. The pixel circuit may be connected to the scan line, the data line, and the light emission control line, and the pixel circuit may be configured to receive the data voltage transmitted by the data line and output a corresponding current to the light emitting element under control of the scan line and the light emission control line. The light emitting elements in at least one of the sub-pixels are respectively connected with the pixel circuits of the sub-pixel, and the light emitting elements are configured to emit light with corresponding brightness in response to the current output by the pixel circuits of the sub-pixel.

In some examples, the pixel circuit may include a plurality of transistors and at least one capacitor. For example, the pixel circuit may be a 3T1C, 4T1C, 5T2C, 6T1C, 7T1C, or 8T1C structure. Wherein, T in the circuit structure refers to a thin film transistor, C refers to a capacitor, the number in front of T represents the number of the thin film transistors in the circuit, and the number in front of C represents the number of the capacitors in the circuit.

In some examples, the plurality of transistors in the pixel circuit may be P-type transistors or may be N-type transistors. The same type of transistor is adopted in the pixel circuit, so that the process flow can be simplified, the process difficulty of the display substrate is reduced, and the yield of products is improved. In other examples, the plurality of transistors in the pixel circuit may include a P-type transistor and an N-type transistor.

In some examples, the plurality of transistors in the pixel circuit may employ low temperature polysilicon thin film transistors, or may employ oxide thin film transistors, or may employ low temperature polysilicon thin film transistors and oxide thin film transistors. The active layer of the low temperature polysilicon thin film transistor adopts low temperature polysilicon (LTPS, low Temperature Poly-Silicon), and the active layer of the Oxide thin film transistor adopts Oxide semiconductor (Oxide). The low-temperature polycrystalline silicon thin film transistor has the advantages of high mobility, quick charge and the like, the Oxide thin film transistor has the advantages of low leakage current and the like, and the low-temperature polycrystalline silicon thin film transistor and the Oxide thin film transistor are integrated on one display substrate, namely, an LTPS+oxide (LTPO) display substrate, so that the advantages of the low-temperature polycrystalline silicon thin film transistor and the Oxide thin film transistor can be utilized, low-frequency driving can be realized, power consumption can be reduced, and display quality can be improved.

In some examples, the light emitting element may be any of a light emitting diode (LED, light Emitting Diode), an organic light emitting diode (OLED, organic Light Emitting Diode), a quantum dot light emitting diode (QLED, quantum Dot Light Emitting Diodes), a micro LED (including: mini-LED or micro-LED), or the like. For example, the light emitting element may be an OLED, and the light emitting element may emit red light, green light, blue light, white light, or the like under the driving of its corresponding pixel circuit. The color of the light emitted by the light emitting element can be determined according to the need. In some examples, the light emitting element may include: an anode, a cathode, and an organic light emitting layer between the anode and the cathode. The anode of the light emitting element may be electrically connected to a corresponding pixel circuit. However, the present embodiment is not limited thereto.

In some examples, the shape of the light emitting element may be rectangular, diamond, pentagonal, or hexagonal, or other irregular shape. The light emitting elements of the four sub-pixels of one pixel unit may be arranged in a horizontal parallel, vertical parallel or square manner. However, the present embodiment is not limited thereto. In other examples, one pixel unit may include three sub-pixels, and light emitting elements of the three sub-pixels may be arranged in a horizontal, vertical, or delta manner.

Fig. 3 is a schematic partial view of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 3, each first type display region (e.g., the first display region a11, or the second display region a12 or a 13) of the display substrate may include at least: a plurality of first light emitting elements 21, a plurality of second light emitting elements 22, and a plurality of first pixel circuits 11. The at least one first light emitting element 21 may be adjacent to the at least one second light emitting element 22. The second type display area A2 may include at least: a plurality of second pixel circuits 12, a plurality of third pixel circuits 13, and a plurality of third light emitting elements 23. The third type display area A3 may include at least: a plurality of fourth pixel circuits 14 and a plurality of fourth light emitting elements 24.

In some examples, the light transmittance of the first display area a11, the second display area a12, and the first display area a13 may be substantially the same, the light transmittance of the first display area a11 may be greater than the light transmittance of the third type display area A3, and the light transmittance of the third type display area A3 may be greater than the light transmittance of the second type display area A2.

In some examples, as shown in fig. 3, within each first type display region, the plurality of first pixel circuits 11 are electrically connected with the plurality of first light emitting elements 21, and the first pixel circuits 11 may be configured to drive the connected first light emitting elements 21 to emit light. For example, the plurality of first pixel circuits 11 and the plurality of first light emitting elements 21 may be electrically connected in a one-to-one correspondence, i.e., one first pixel circuit 11 may be configured to drive one first light emitting element 21 to emit light. However, the present embodiment is not limited thereto. For example, one first pixel circuit may be configured to drive a plurality of first light emitting elements to emit light, or a plurality of first pixel circuits may be configured to drive one first light emitting element to emit light.

In some examples, as shown in fig. 3, the front projection of the first light emitting element 21 in each first type of display area on the substrate and the front projection of the connected first pixel circuit 11 on the substrate may at least partially overlap. However, the present embodiment is not limited thereto. For example, the front projection of one first light emitting element on the substrate may not overlap with the front projection of the first pixel circuit connected to itself on the substrate, and at least partially overlap with the front projection of the first pixel circuit connected to the other first light emitting element on the substrate.

In some examples, as shown in fig. 3, the plurality of second pixel circuits 12 are electrically connected to the plurality of second light emitting elements 22, and the second pixel circuits 12 may be configured to drive the connected second light emitting elements 22 to emit light. For example, the plurality of second pixel circuits 12 may be electrically connected to the plurality of second light emitting elements 22 through the plurality of conductive connection lines 16 in a one-to-one correspondence, i.e., one second pixel circuit 12 is electrically connected to one second light emitting element 22 through at least one conductive connection line 16, configured to drive the connected second light emitting element 22 to emit light. The front projection of the second light emitting element 22 on the substrate does not overlap with the front projection of the second pixel circuit 12 on the substrate. However, the present embodiment is not limited thereto. For example, one second pixel circuit may be configured to drive a plurality of second light emitting elements to emit light, or a plurality of second pixel circuits may be configured to drive one second light emitting element to emit light.

In some examples, as shown in fig. 3, the plurality of third pixel circuits 13 are electrically connected to the plurality of third light emitting elements 23. The third pixel circuit 13 may be configured to drive the connected third light emitting element 23 to emit light. For example, the plurality of third pixel circuits 13 and the plurality of third light emitting elements 23 may be electrically connected in one-to-one correspondence, i.e., one third pixel circuit 13 may be configured to drive one third light emitting element 23 to emit light. The orthographic projection of the third light emitting element 23 on the substrate and the orthographic projection of the connected third pixel circuit 13 on the substrate may overlap at least partially. However, the present embodiment is not limited thereto. For example, one third pixel circuit may be configured to drive a plurality of third light emitting elements to emit light, or a plurality of third pixel circuits may be configured to drive one third light emitting element to emit light.

In some examples, as shown in fig. 3, the plurality of fourth pixel circuits 14 are electrically connected to the plurality of fourth light emitting elements 24. The fourth pixel circuit 14 may be configured to drive the connected fourth light emitting element 24 to emit light. For example, the plurality of fourth pixel circuits 14 and the plurality of fourth light emitting elements 24 may be electrically connected in a one-to-one correspondence, i.e., one fourth pixel circuit 14 may be configured to drive one fourth light emitting element 24 to emit light. The front projection of the fourth light emitting element 24 on the substrate and the front projection of the connected fourth pixel circuit 14 on the substrate may at least partly overlap. However, the present embodiment is not limited thereto. For example, one fourth pixel circuit may be configured to drive a plurality of fourth light emitting elements to emit light, or a plurality of fourth pixel circuits may be configured to drive one fourth light emitting element to emit light.

In some examples, the second type display area A2 may also be provided with a plurality of inactive pixel circuits to maintain uniformity of the components of the plurality of film layers within the second type display area A2 during the etching process. The inactive pixel circuits may be substantially identical in structure to the second pixel circuits in the row or column, except that they are not electrically connected to any light emitting element. The third type display area A3 may be provided with a plurality of fourth pixel circuits, and no invalid pixel circuits are provided. The external second pixel circuit is arranged in the second type display area in a concentrated mode, so that the light transmittance and resolution of the third type display area can be ensured, and the display effect of the third type display area can be ensured. However, the present embodiment is not limited thereto.

The display substrate of the example can ensure the light transmittance of the first type display area by adopting an external pixel circuit mode and an internal pixel circuit mode in combination with each first type display area, and is beneficial to improving the size of the first type display area so as to meet various functional requirements.

Fig. 4 is a schematic structural diagram of a first type display area of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 4, the plurality of first light emitting elements of the first type of display region may include: a plurality of first light emitting elements 21a emitting light of a first color and a plurality of first light emitting elements 21b emitting light of a second color. For example, the first color light may be red light (R) and the second color light may be blue light (B). The first light emitting element emitting the first color light is a red light emitting element, and the first light emitting element emitting the second color light is a blue light emitting element. The plurality of second light emitting elements 22 of the first type display region may be configured to emit light of a third color. For example, the third color light is green light (G), and the second light emitting element that emits the third color light may be a green light emitting element. In this example, the pixel circuits to which the red light emitting element and the blue light emitting element in the first type display region are connected may be provided in an internal manner, and the pixel circuits to which the green light emitting element is connected may be provided in an external manner.

In some examples, the ratio of the number of first light emitting elements and second light emitting elements of the first type display region may be 0.8 to 1.2, such as may be about 1. By providing the same number of first light emitting elements and second light emitting elements, display uniformity of the first type display region can be facilitated.

In some examples, as shown in fig. 4, the green light emitting elements (e.g., second light emitting elements 22) within the first type display region may be arranged in a plurality of rows along the first direction X and a plurality of columns along the second direction Y. The blue light emitting elements (e.g., the first light emitting element 21 b) and the red light emitting elements (e.g., the first light emitting element 21 a) may be arranged in a plurality of rows in the first direction X, in a plurality of columns in the second direction Y, and in each row and each column at a middle. The green light emitting elements and the red light emitting elements are arranged in different rows and different columns. Wherein the first direction X intersects the second direction Y, e.g. the first direction X may be perpendicular to the second direction Y.

In some examples, as shown in fig. 4, the plurality of first pixel circuits of the first type display region may include: a first pixel circuit 11a electrically connected to the first light emitting element 21a, and a first pixel circuit 11b electrically connected to the first light emitting element 21 b. The front projection of the first light emitting element 21a on the substrate and the front projection of the connected first pixel circuit 11a on the substrate may at least partly overlap, and the front projection of the first light emitting element 21b on the substrate and the front projection of the connected first pixel circuit 11b on the substrate may at least partly overlap. The orthographic projection of the second light emitting element on the substrate and the orthographic projection of the first pixel circuits 11a and 11b on the substrate may not overlap. However, the present embodiment is not limited thereto. In other examples, the pixel circuits to which the blue light emitting element and the red light emitting element are connected may be disposed in the second type display region, the pixel circuit to which the green light emitting element is connected may be disposed in the first type display region, and the front projection of the green light emitting element on the substrate does not overlap with the front projection of the connected pixel circuit on the substrate, and the front projection of the blue light emitting element or the red light emitting element on the substrate at least partially overlaps with the front projection of the pixel circuit to which the green light emitting element is connected on the substrate.

In some examples, as shown in fig. 4, the plurality of first pixel circuits 11a and 11b may be arranged in a plurality of rows and columns in the first type display area. Adjacent first pixel circuits (e.g., first pixel circuits 11a and 11 b) in the first direction X may be electrically connected by at least one first circuit lead 17. Adjacent first pixel circuits (e.g., first pixel circuits 11a and 11 b) in the second direction Y may be electrically connected by at least one second circuit lead 18. For example, the first circuit lead 17 may include: scanning lines, light-emitting control lines, reset control lines and initial signal lines; the second circuit lead 18 may include: a data line, a first power line (e.g., providing a high level signal). However, the present embodiment is not limited thereto.

In some examples, as shown in fig. 4, the orthographic projection of the second light emitting element 22 external to the pixel circuit on the substrate and the orthographic projections of the first circuit lead 17 and the second circuit lead 18 on the substrate may not overlap. The second light emitting element 22 may be located in a region surrounded by the first pixel circuit, the first circuit lead 17, and the second circuit lead 18. The first circuit lead 17 and the second circuit lead 18 may be of a same layer structure. The first circuit lead 17 and the second circuit lead 18 may be made of a transparent conductive material, thereby improving light transmittance of the first type display region.

Fig. 5 is a schematic diagram illustrating connection between a second light emitting element and a second pixel circuit according to at least one embodiment of the utility model. The present example is illustrated by taking as an example the connection relationship between the second light emitting element 22 of the first display area a11 and the second pixel circuit 12 in the second type display area A2. In some examples, the second pixel circuits 12 may be disposed within the second type display area A2 on both sides (e.g., left and right sides) of the first display area a11 in the first direction X. In the second type display area A2, the plurality of second pixel circuits 12 may be spaced apart between the plurality of third pixel circuits 13. In the second-type display area A2, the area where the second pixel circuits 12 are disposed can be obtained by reducing the size of the third pixel circuits 13 in the first direction X. For example, the size of the third pixel circuit 13 in the first direction X may be smaller than the size of the third light emitting element in the first direction X.

In some examples, the original third pixel circuits of every f columns may be compressed along the first direction X, so that the arrangement space of the second pixel circuits 12 of one column is newly increased, and the space occupied by the pixel circuits of f columns before compression and the pixel circuits of f+1 columns after compression may be the same. Where f may be an integer greater than 1. In this example, f may be 4, and the arrangement space of the second pixel circuits in one column is newly increased by compressing the third pixel circuits in four columns. However, the present embodiment is not limited thereto.

In some examples, as shown in fig. 5, the second light emitting element 22 near the center of the first display area a11 in the first display area a11 may be electrically connected to the second pixel circuit 12 near the first display area a11 in the second type display area A2 through the conductive connection line 16, and the second light emitting element 22 near the edge of the first display area a11 may be electrically connected to the second pixel circuit 12 far from the first display area a11 through the conductive connection line 16. The present embodiment is not limited to the connection relationship between the second pixel circuit and the second light emitting element. The conductive connection lines 16 may extend from the first display area a11 to the second type display area A2, enabling an electrical connection between the second pixel circuits 12 and the second light emitting elements 22.

FIG. 6 is a schematic partial cross-sectional view of a third type of display area according to at least one embodiment of the present utility model.

Fig. 7A and 7B are schematic partial cross-sectional views of a second display area according to at least one embodiment of the utility model.

Fig. 8A and 8B are schematic partial cross-sectional views of a first display area according to at least one embodiment of the utility model.

Fig. 6 illustrates a partial cross-sectional structure of a fourth light emitting element (e.g., red light emitting element) of the third type display region emitting light of the first color and a fourth pixel circuit electrically connected to the fourth light emitting element. Fig. 7A illustrates a partial cross-sectional structure of a first light emitting element (e.g., a red light emitting element or a blue light emitting element) emitting light of a first color (or light of a second color) in the second display region and a first pixel circuit to which the first light emitting element is connected, and fig. 7B illustrates a partial cross-sectional structure of a second light emitting element (e.g., a green light emitting element) emitting light of a third color in the second display region. Fig. 8A illustrates a partial cross-sectional structure of a first light emitting element (e.g., a red light emitting element or a blue light emitting element) emitting light of a first color (or light of a second color) in the first display region and a first pixel circuit to which the first light emitting element is connected, and fig. 8B illustrates a partial cross-sectional structure of a second light emitting element (e.g., a green light emitting element) emitting light of a third color in the first display region.

In some examples, as shown in fig. 6 to 8B, in a direction perpendicular to the display substrate, the display substrate may include: a substrate 300, and a circuit structure layer 31, a light emitting structure layer 32, a package structure layer 33, a touch structure layer 34, and a color filter layer 35 sequentially disposed on the substrate 300. The circuit structure layer 31 may include at least: the display device comprises a first pixel circuit, a second pixel circuit, a third pixel circuit and a fourth pixel circuit, wherein the first pixel circuit is positioned in a first display area and a second display area, the second pixel circuit and the third pixel circuit are positioned in a second type display area, and the fourth pixel circuit is positioned in a third type display area. The light emitting structure layer 32 may include: the first and second light emitting elements in the first and second display regions, the third light emitting element in the second type display region, and the fourth light emitting element in the third type display region.

In some examples, as shown in fig. 6 to 8B, the circuit structure layer 31 of the display substrate may include, in a direction perpendicular to the display substrate: the metal shielding layer, the semiconductor layer, the first gate metal layer, the second gate metal layer, the first source drain metal layer, the first transparent conductive layer, the second source drain metal layer, and the second transparent conductive layer are sequentially disposed on the substrate 300. The orthographic projection of the metal shielding layer on the substrate can be configured to at least partially cover the active layer of the thin film transistor of the pixel circuit so as to avoid the influence of external light on the performance of the thin film transistor.

In some examples, as shown in fig. 6-8B, a first insulating layer (also may be referred to as a first buffer layer) 301 may be disposed between the metal shielding layer and the substrate 300, a second insulating layer (also may be referred to as a second buffer layer) 302 may be disposed between the metal shielding layer and the semiconductor layer, a third insulating layer (also may be referred to as a first gate insulating layer) 303 may be disposed between the semiconductor layer and the first gate metal layer, a fourth insulating layer (also may be referred to as a second gate insulating layer) 304 may be disposed between the first gate metal layer and the second gate metal layer, a fifth insulating layer (also may be referred to as an interlayer insulating layer) 305 may be disposed between the second gate metal layer and the first source drain metal layer, a sixth insulating layer (also may be referred to as a passivation layer) 306 may be disposed between the first transparent conductive layer and the second source drain metal layer, a seventh insulating layer (also may be referred to as a first planarization layer) 307 may be disposed between the first source drain metal layer and the second transparent conductive layer, a third insulating layer (also may be referred to as a planarization layer) 308 may be disposed between the second source drain metal layer and the second transparent conductive layer (also referred to as a planarization layer) may be disposed on the side of the third insulating layer (may be referred to as a planarization layer) 308). The present example can prevent harmful substances in the substrate 300 from invading the inside of the display substrate by providing the first buffer layer and the second buffer layer, and can also increase the adhesion of the film layer in the display substrate on the substrate. In this example, the first transparent conductive layer is disposed between the first source drain metal layer and the second source drain metal layer and between the sixth insulating layer 306 and the seventh insulating layer 307, so that the first transparent conductive layer can be disposed without adding an insulating layer, which is beneficial to simplifying the manufacturing process. However, the present embodiment is not limited thereto. In other examples, the side of the semiconductor layer adjacent to the substrate may omit the provision of the metal shielding layer. For another example, the side of the metal shielding layer close to the substrate may omit the first buffer layer.

In some examples, the first to sixth insulating layers 301 to 306 may be inorganic insulating layers, and the seventh to ninth insulating layers 307 to 309 may be organic insulating layers. However, the present embodiment is not limited thereto.

In some examples, as shown in fig. 6 to 8B, the light emitting structure layer 32 may include: an anode layer, a pixel defining layer 321, an organic light emitting layer, and a cathode layer sequentially disposed on the circuit structure layer 31. The anode layer may include: the anode of the light emitting element electrically connected to the pixel circuit of the circuit structure layer 31, the organic light emitting layer may be connected to the corresponding anode, and the cathode layer may include: the cathode of the light-emitting element can be connected with the corresponding organic light-emitting layer, and the organic light-emitting layer can emit light rays with corresponding colors under the driving of the corresponding anode and cathode. The side of the pixel defining layer 321 away from the substrate 300 may be provided with a barrier rib layer 322, and the barrier rib layer 322 may be positioned at the side of the cathode layer close to the substrate 300.

In some examples, the organic light Emitting Layer of the light Emitting element may include an Emitting Layer (EML, emission Layer), and one or more film layers including a Hole injection Layer (HIL, hole Injection Layer), a Hole transport Layer (HTL, hole Transport Layer), a Hole blocking Layer (HBL, hole Block Layer), an electron blocking Layer (EBL, electron Block Layer), an electron injection Layer (EIL, electron Injection Layer), and an electron transport Layer (ETL, electron Transport Layer). The organic material can emit light according to a desired gray scale by utilizing the light emission characteristics of the organic material under the voltage driving of the anode and the cathode.

In some examples, the light emitting layers of the different color light emitting elements may be different. For example, the red light emitting element includes a red light emitting layer, the green light emitting element includes a green light emitting layer, and the blue light emitting element includes a blue light emitting layer. In order to reduce the process difficulty and improve the yield, a common layer may be used for the hole injection layer and the hole transport layer on one side of the light emitting layer, and a common layer may be used for the electron injection layer and the electron transport layer on the other side of the light emitting layer. In some examples, any one or more of the hole injection layer, the hole transport layer, the electron injection layer, and the electron transport layer may be fabricated by one process (one evaporation process or one inkjet printing process), and isolation may be achieved by a surface level difference of the formed film layer or by surface treatment or the like. For example, any one or more of the hole injection layer, the hole transport layer, the electron injection layer, and the electron transport layer corresponding to adjacent sub-pixels may be isolated. In some examples, the organic light emitting layer may be formed by evaporation using a Fine Metal Mask (FMM) or an Open Mask (Open Mask), or by an inkjet process.

In some examples, the encapsulation structure layer 33 may include a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked, where the first encapsulation layer and the third encapsulation layer may be made of an inorganic material, the second encapsulation layer may be made of an organic material, and the second encapsulation layer may be disposed between the first encapsulation layer and the third encapsulation layer to form an inorganic material/organic material/inorganic material stacked structure, so that external moisture may not enter the light emitting structure layer.

In some examples, as shown in fig. 6-8B, the touch structure layer 34 may be located on a side of the package structure layer 33 away from the substrate 300. The touch structure layer 34 may include: a plurality of first touch electrodes 341, a plurality of first connection portions, a plurality of second touch electrodes 342, and a plurality of second connection portions 343. For example, the first touch electrodes 341 and the first connection parts may be alternately arranged along the first direction and sequentially connected. The plurality of second touch electrodes 342 may be disposed at intervals along the second direction Y, and adjacent second touch electrodes 342 may be electrically connected to each other through the second connection portion 343. The film layer of the second connection portion 343 may be different from the film layers of the first touch electrode 341, the second touch electrode 342, and the first connection portion. In some examples, the first touch electrode may be a driving (Tx) electrode and the second touch electrode may be a sensing (Rx) electrode. Alternatively, the first touch electrode may be a sense (Rx) electrode and the second touch electrode may be a drive (Tx) electrode. The present embodiment is not limited thereto.

In some examples, as shown in fig. 6 to 8B, in a direction perpendicular to the display substrate, the touch structure layer 34 may include: the first touch conductive layer, the touch insulating layer 345, the second touch conductive layer, and the touch protective layer 346 are sequentially disposed. The first touch conductive layer may include: the second connection part 343, the second touch conductive layer may include: the first touch electrode 341, the second touch electrode 342, and the first connection portion (not shown). The first touch electrode 341 and the first connection portion may be an integral structure connected to each other. The adjacent second touch electrode 342 may be electrically connected to the second connection portion 343 through a via formed in the touch insulating layer 345. The present embodiment is not limited thereto. In other examples, the plurality of first touch electrodes, the plurality of second touch electrodes and the plurality of second connection portions may be disposed on the second touch conductive layer in the same layer, the second touch electrodes and the second connection portions may be integrally connected to each other, the first connection portions may be disposed on the first touch conductive layer, and the first connection portions may be connected to adjacent first touch electrodes through vias formed in the insulating layers between the touch layers.

In some examples, the first touch electrode and the second touch electrode may have a rhombus shape, for example, may be a positive rhombus, or a horizontally long rhombus, or a vertically long rhombus. In other examples, the first touch electrode and the second touch electrode may have any one or more of a triangle, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons, and embodiments of the present utility model are not limited herein. In some examples, the first touch electrode and the second touch electrode may be in the form of transparent conductive electrodes. The present embodiment is not limited thereto.

In some examples, as shown in fig. 6 to 8B, the color filter layer 35 may be located on a side of the touch structure layer 34 away from the encapsulation structure layer 33. The color filter layer 35 may include: a plurality of filter units of different colors (e.g., including a first filter unit 351a, a second filter unit 351b, a third filter unit 351c, a fourth filter unit 351d, a fifth filter unit 351 e), a light shielding layer (e.g., including a first light shielding layer 352a located in a third type display region, a second light shielding layer 352b located in a second display region, and a third light shielding layer 352c located in the first display region) located between the different filter units, and a color film protective layer (COC) 353 located on a side of the light shielding layer and the plurality of filter units remote from the substrate 300.

In some examples, the plurality of filter units of the color filter layer 35 may include: a plurality of red filter units, a plurality of green filter units and a plurality of blue filter units. The filter units of different colors may correspond to light emitting elements of different colors emitted from the light emitting structure layer 32. For example, the blue filter unit may correspond to the blue light emitting element, and the front projection of the blue filter unit on the substrate and the front projection of the light emitting region of the blue light emitting element on the substrate may at least partially overlap, e.g., the front projection of the blue filter unit on the substrate may cover the front projection of the light emitting region of the blue light emitting element on the substrate. In this example, the filter unit may pass a single color light and absorb other color light. For example, the blue filter unit may pass blue light and absorb other colors of light. In the example, the color filter layer is formed by adopting the technology of integrating the color film into the packaging layer (COE, color On Encapsulation), so that the thickness can be obviously reduced compared with a polaroid, and a better flexible effect can be realized; in addition, compared with the effect of eliminating natural light by the circular polaroid, the shading layer and the light filtering unit of the color light filtering layer have light absorption functions, when external natural light irradiates, the natural light irradiates the sub-pixel below the color light filtering layer through the light filtering unit, and the natural light is emitted from the light filtering unit together with light generated by the sub-pixel after being reflected by the sub-pixel, so that the light extraction rate of the natural light can be improved, and the function of reducing power consumption is realized.

The film structure of the third type display area is described below with reference to fig. 6. Here, a fourth light emitting element for emitting light of the first color in the third type display region shown in fig. 6, and two transistors 141 and 142 and a storage capacitor 143 of a fourth pixel circuit to which the fourth light emitting element is connected are described as an example.

In some examples, as shown in fig. 6, the metal shielding layer of the third type display region may include: the first light shielding electrode 310a. The semiconductor layer of the third type display region may include at least: an active layer of the transistor 141 and an active layer of the transistor 142 of the fourth pixel circuit. The front projection of the first light shielding electrode 310a on the substrate may cover the front projection of the active layer of the transistor 141 and the active layer of the transistor 142 on the substrate. The first shading electrode is used for shading the active layer of the transistor of the fourth pixel circuit, so that the influence of external light on the performance of the thin film transistor can be avoided. The first gate metal layer of the third type display region may include at least: gates of the transistors 141 and 142 of the fourth pixel circuit, and a first electrode of the storage capacitor 143. The second gate metal layer may include at least: a second electrode of the storage capacitor 143. The first source drain metal layer may include at least: first and second poles of transistors 141 and 142 of the fourth pixel circuit. For example, the second pole of transistor 141 and the first pole of transistor 142 may be an integral structure connected to each other.

In some examples, as shown in fig. 6, the first transparent conductive layer of the third type display region may include at least: the first anode is connected to the electrode 314a. The first anode connection electrode 314a may be electrically connected to the second electrode of the transistor 142 of the fourth pixel circuit through a via hole formed in the sixth insulating layer 306. The second source drain metal layer may include at least: the second anode is connected to the electrode 315a. The second anode connection electrode 315a may be electrically connected to the first anode connection electrode 314a through a via hole formed in the seventh insulating layer 307. The second transparent conductive layer may include at least: the third anode is connected to the electrode 316a. The third anode connection electrode 315a may be electrically connected to the second anode connection electrode 315a through a via hole formed in the eighth insulating layer 308.

In some examples, as shown in fig. 6, the anode layer of the light emitting structure layer 32 of the third type display region may include at least: the anode 241 of the fourth light emitting element emitting the first color light, the organic light emitting layer may include at least: the fourth organic light emitting layer 242 of the fourth light emitting element, the cathode layer may include at least: and a cathode 243 of the fourth light emitting element. The anode electrode 241, the fourth organic light emitting layer 242, and the cathode electrode 243 are sequentially stacked in the pixel opening formed in the pixel defining layer 321. The cathodes of the plurality of fourth light emitting elements of the third type display region of the present example may be integrally formed as a connected structure with each other.

In some examples, as shown in fig. 6, the first touch conductive layer of the touch structure layer 34 of the third type display area may include at least: the second connection portion 343, the second touch conductive layer may include at least: the first touch electrode 341 and the second touch electrode 342. The adjacent second touch electrode 342 can be electrically connected to the second connection portion 343 through a via hole formed in the touch insulating layer 345.

In some examples, as shown in fig. 6, the color filter layer 35 of the third type display region may include at least: a first filter unit 351a corresponding to a fourth light emitting element emitting light of the first color, and a first light shielding layer 352a. For example, the first filter unit 351a may be a red filter unit. The first light shielding layer 352a may include a plurality of first light shielding openings, and the first light filtering unit 351a may be at least partially located in one of the first light shielding openings. The first light shielding layer 352a of the third type display region may be of an integral structure and may cover a gap between adjacent filter units.

In some examples, the structures of the third pixel circuit and the third light emitting element of the second type display area are similar to those of the fourth pixel circuit and the fourth light emitting element of the third type display area, and thus the description thereof will not be repeated.

The film structure of the second display region is described below with reference to fig. 7A and 7B. Here, a first light emitting element for emitting light of a first color in the second display region shown in fig. 7A, two transistors 111a and 112a and a storage capacitor 113a of a first pixel circuit to which the first light emitting element is connected, and a second light emitting element for emitting light of a third color in the second display region shown in fig. 7B are described as an example.

In some examples, as shown in fig. 7A and 7B, the metal shielding layer of the second display region may include: the second light shielding electrode 310b. The semiconductor layer of the second display region may include at least: active layers of transistors 111a and 112a of the first pixel circuit. The orthographic projection of the second light shielding electrode 310b on the substrate may cover the orthographic projections of the active layers of the transistors 111a and 112a on the substrate. The second shading electrode is used for shading the active layer of the transistor of the first pixel circuit of the second display area, so that the influence of external light on the performance of the thin film transistor can be avoided. The first gate metal layer of the second display region may include at least: gates of the transistors 111a and 112a of the first pixel circuit and a first electrode of the storage capacitor 113 a. The second gate metal layer may include at least: a second electrode of the storage capacitor 113 a. The first source drain metal layer may include at least: first and second poles of transistors 111a and 112a of the first pixel circuit, and a first connection electrode 311a. For example, the second pole of the transistor 111a and the first pole of the transistor 112a may be an integral structure connected to each other. The first connection electrode 311a may be electrically connected to the second light shielding electrode 310b through vias formed in the fifth insulating layer 305, the fourth insulating layer 304, the third insulating layer 303, and the second insulating layer 302.

In some examples, as shown in fig. 7A and 7B, the first transparent conductive layer of the second display region may include at least: a first anode connection electrode 314b, a first circuit lead 17, and a second connection electrode 312a. The first anode connection electrode 314b may be electrically connected to the second electrode of the transistor 112a of the first pixel circuit through a via hole formed in the sixth insulating layer 306. The second connection electrode 312a may be electrically connected to the first connection electrode 311a through a via hole formed in the sixth insulating layer 306. Through the second connection electrode 312a and the first connection electrode 311a, the adjacent second light-shielding electrodes can be electrically connected, so as to provide a low potential signal to the second light-shielding electrodes, and prevent the second light-shielding electrodes from floating. The second source drain metal layer may include at least: the second anode is connected to the electrode 315b. The second anode connection electrode 315b may be electrically connected to the first anode connection electrode 314b through a via hole formed in the seventh insulating layer 307. The second transparent conductive layer may include at least: the third anode connection electrode 316b and the electrically conductive connection line 16. The third anode connection electrode 316b may be electrically connected to the second anode connection electrode 315b through a via hole formed in the eighth insulating layer 308. The third anode connection electrode 316b may realize electrical connection of the first light emitting element of the second display region with the first pixel circuit. The electrically conductive connection lines 16 may realize an electrical connection of the second light emitting elements of the second display area and the second pixel circuits of the second type display area.

In some examples, as shown in fig. 7A and 7B, the anode layer of the light emitting structure layer 32 of the second display region may include at least: an anode 211a of a first light emitting element emitting light of a first color, and an anode 221a of a second light emitting element emitting light of a third color; the organic light emitting layer may include at least: a first organic light emitting layer 212a of the first light emitting element, a second organic light emitting layer 222a of the second light emitting element; the cathode layer may include at least: a cathode 213a of the first light emitting element, and a cathode 223a of the second light emitting element. The cathode 213a of the first light emitting element and the cathode 223a of the second light emitting element may be integrally connected to each other. The anode 211a of the first light emitting element may be electrically connected to the third anode connection electrode 316b through a via hole formed in the ninth insulating layer 309. The anode 221a of the second light emitting element may be electrically connected to the conductive connection line 16 through a via hole formed in the ninth insulating layer 309 to be electrically connected to a second pixel circuit located in the second type display region. The orthographic projection of the second light-emitting element emitting the third color light on the substrate and the metal film layer in the circuit structure layer may not overlap.

In some examples, as shown in fig. 7A and 7B, the touch structure layer 34 of the second display area may include at least: a first touch electrode 341 and a first connection portion. The touch control structure layer of the second display area can only comprise one touch control conducting layer, and the influence of the touch control conducting layer on the light transmittance of the second display area can be reduced by only arranging one touch control conducting layer in the second display area.

In some examples, as shown in fig. 7A and 7B, the color filter layer 35 of the second display region may include at least: a second filter unit 351b corresponding to a first light emitting element emitting light of a first color, a third filter unit 351c corresponding to a second light emitting element emitting light of a third color, and a second light shielding layer 352b. For example, the second filter unit 351b may be a red filter unit and the third filter unit 351c may be a green filter unit. The second light shielding layer 352b may include a plurality of second light shielding openings, the second light filtering unit 351b may be at least partially located in a corresponding one of the second light shielding openings, and the third light filtering unit 351c may be at least partially located in a corresponding one of the second light shielding openings. The second light shielding layer 352b of the second display area and the first light shielding layer 352a of the third type display area may be integrally formed with each other and may cover a gap between adjacent filter units. However, the present embodiment is not limited thereto. In other examples, the second light shielding layer of the second display region and the first light shielding layer of the third type display region may be disposed independently of each other, for example, the first light shielding layer may be a black matrix, the second light shielding layer may employ a light shielding material that enables selective transmission of infrared light, for example, the visible light transmittance of the light shielding material may be less than or equal to the infrared light transmittance. For example, the light shielding material may be an organic material having a visible light transmittance of 10% or less and an infrared light transmittance of 10% or more.

The film structure of the first display area is described below with reference to fig. 8A and 8B. Here, a first light emitting element for emitting light of a first color in the first display region shown in fig. 8A, two transistors 111B and 112B and a storage capacitor 113B of a first pixel circuit to which the first light emitting element is connected, and a second light emitting element for emitting light of a third color in the first display region shown in fig. 8B are described as an example.

In some examples, as shown in fig. 8A and 8B, the metal shielding layer of the first display region may include: and a third light shielding electrode 310c. The semiconductor layer of the first display region may include at least: active layers of transistors 111b and 112b of the first pixel circuit. The orthographic projection of the third light shielding electrode 310c on the substrate may cover the orthographic projections of the active layers of the transistors 111b and 112b on the substrate. The third shading electrode is used for shading the active layer of the transistor of the first pixel circuit of the first display area, so that the influence of external light on the performance of the thin film transistor can be avoided. The first gate metal layer of the first display region may include at least: gates of the transistors 111b and 112b of the first pixel circuit and a first electrode of the storage capacitor 113 b. The second gate metal layer may include at least: a second electrode of the storage capacitor 113 b. The first source drain metal layer may include at least: first and second poles of transistors 111b and 112b of the first pixel circuit, and a first connection electrode 311b. For example, the second pole of the transistor 111b and the first pole of the transistor 112b may be an integral structure connected to each other. The first connection electrode 311b may be electrically connected to the third light shielding electrode 310c through vias formed in the fifth insulating layer 305, the fourth insulating layer 304, the third insulating layer 303, and the second insulating layer 302.

In some examples, as shown in fig. 8A and 8B, the first transparent conductive layer of the first display region may include at least: a first anode connection electrode 314c, a first circuit lead 17, and a second connection electrode 312b. The first anode connection electrode 314c may be electrically connected to the second electrode of the transistor 112b of the first pixel circuit through a via hole formed in the sixth insulating layer 306. The second connection electrode 312b may be electrically connected to the first connection electrode 311b through a via hole formed in the sixth insulating layer 306. Through the second connection electrode 312b and the first connection electrode 311b, an electrical connection between adjacent third light-shielding electrodes in the first display area may be achieved, so as to provide a low potential signal to the second light-shielding electrode, thereby avoiding floating connection of the second light-shielding electrode. The second source drain metal layer may include at least: the second anode is connected to the electrode 315c. The second anode connection electrode 315c may be electrically connected to the first anode connection electrode 314c through a via hole formed in the seventh insulating layer 307. The second transparent conductive layer may include at least: the third anode connection electrode 316c and the electrically conductive connection line 16. The third anode connection electrode 316c may be electrically connected to the second anode connection electrode 315c through a via hole formed in the eighth insulating layer 308. The third anode connection electrode 316c may realize electrical connection of the first light emitting element of the first display region with the first pixel circuit. The electrically conductive connection lines 16 may realize an electrical connection of the second light emitting elements of the first display area and the second pixel circuits of the second type display area.

In some examples, as shown in fig. 8A and 8B, the anode layer of the light emitting structure layer 32 of the first display region may include at least: an anode 211b of a first light emitting element emitting light of a first color, and an anode 221b of a second light emitting element emitting light of a third color; the organic light emitting layer may include at least: a first organic light emitting layer 212b of the first light emitting element, a second organic light emitting layer 222b of the second light emitting element; the cathode layer may include at least: a cathode 213b of the first light emitting element, and a cathode 223b of the second light emitting element. The cathode 213b of the first light emitting element and the cathode 223b of the second light emitting element may be integrally connected to each other. The anode 211b of the first light emitting element may be electrically connected to the third anode connection electrode 316c through a via hole formed in the ninth insulating layer 309. The anode 221b of the second light emitting element may be electrically connected to one of the conductive connection lines 16 through a via hole formed in the ninth insulating layer 309 to be electrically connected to a second pixel circuit located in the second type display region. The orthographic projection of the second light-emitting element emitting the third color light on the substrate and the metal film layer in the circuit structure layer may not overlap.

In some examples, as shown in fig. 8A and 8B, the touch structure layer 34 of the first display area may include at least: a touch buffer layer 345 and a touch protection layer 346. The touch control structure layer of the first display area can be provided with no touch control conducting layer, so that the influence of the touch control conducting layer on the light transmittance of the first display area can be reduced, and the light transmittance of the first display area is improved.

In some examples, as shown in fig. 8A and 8B, the color filter layer 35 of the first display region may include at least: a fourth filter unit 351d corresponding to a first light emitting element emitting light of a first color, a fifth filter unit 251e corresponding to a second light emitting element emitting light of a third color, and a third light shielding layer 352c. For example, the fourth filter unit 351d may be a red filter unit and the fifth filter unit 251e may be a green filter unit. The third light shielding layer 352c may include a plurality of third light shielding openings, and the fourth filter unit 351d may be at least partially located in the corresponding third light shielding openings. The third light shielding layer 352c may not be disposed around the fifth filter unit 251 e. For example, the third light shielding layer 352c may include a plurality of light shielding blocks disposed independently, and at least one light shielding block may be positioned around at least one light filtering unit. For example, a light shielding block may be provided around the fourth filter unit, and no light shielding block may be provided around the fifth filter unit.

In some examples, the third light shielding layer 352c and the second light shielding layer 352b of the second display region may be an integrally connected structure. In other examples, the third light shielding layer 352c may be disposed independently of the second light shielding layer 352b of the second display region. For example, a light shielding material that realizes selective transmission of infrared light may be used for the third light shielding layer 352c, and for example, the light shielding material may be an organic material having a visible light transmittance of 10% or less and an infrared light transmittance of 10% or more. For example, the materials of the second light shielding layer 352b and the third light shielding layer 352c may be different, and the infrared light transmittance of the second light shielding layer 352b may be greater than the infrared light transmittance of the third light shielding layer 352c.

The structure of the display substrate is described below by way of an example of a manufacturing process of the display substrate with reference to fig. 6 to 8B. The patterning process disclosed by the utility model comprises the steps of coating photoresist, mask exposure, development, etching, stripping photoresist and the like for metal materials, inorganic materials or transparent conductive materials, and the like for organic materials, comprising the steps of coating organic materials, mask exposure, development and the like. The deposition can be any one or more of sputtering, vapor deposition and chemical vapor deposition, the coating can be any one or more of spraying, spin coating and ink jet printing, and the etching can be any one or more of dry etching and wet etching, so that the utility model is not limited. "film" refers to a layer of film formed by depositing, coating, or other process a material on a substrate. The "film" may also be referred to as a "layer" if the "film" does not require a patterning process throughout the fabrication process. If the "thin film" requires a patterning process throughout the fabrication process, it is referred to as a "thin film" prior to the patterning process, and as a "layer" after the patterning process. The "layer" after the patterning process includes at least one "pattern".

The utility model refers to the fact that A and B are arranged in the same layer, wherein A and B are formed simultaneously through the same patterning process, or the distance between the surface of one side of A and B, which is close to the substrate, and the substrate is basically the same, or the surface of one side of A and B, which is close to the substrate, is in direct contact with the same film layer. The "thickness" of a film layer is the dimension of the film layer in a direction perpendicular to the display substrate. In an exemplary embodiment of the present utility model, "the front projection of B is within the range of the front projection of a" or "the front projection of a includes the front projection of B" means that the boundary of the front projection of B falls within the boundary range of the front projection of a or the boundary of the front projection of a overlaps with the boundary of the front projection of B. The "shape of a" as used herein refers to the shape of an orthographic projection of a on a substrate.

In some examples, the preparation process of the display substrate may include the following operations.

(1) And lifting out the substrate. In some examples, the substrate 300 may be a rigid base or a flexible base. For example, the rigid substrate may be, but is not limited to, one or more of glass, quartz; the flexible substrate may be, but is not limited to, one or more of polyethylene terephthalate, ethylene terephthalate, polyetheretherketone, polystyrene, polycarbonate, polyarylate, polyimide, polyvinyl chloride, polyethylene, textile fibers. In some examples, the flexible substrate may include a first flexible material layer, a first inorganic material layer, a second flexible material layer, and a second inorganic material layer stacked, the materials of the first flexible material layer and the second flexible material layer may be Polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer film, and the materials of the first inorganic material layer and the second inorganic material layer may be silicon nitride (SiNx, x > 0), silicon oxide (SiOy, y > 0), or the like, for improving the water-oxygen resistance of the substrate.

(2) And forming a metal shielding layer. In some examples, a first insulating film and a metal shielding film are sequentially deposited on a substrate, and the metal shielding film is patterned by a patterning process to form a first insulating layer and a metal shielding layer disposed on the first insulating layer. By arranging the metal shielding layer to shield the active layer of the transistor of the pixel circuit, the influence of external light on the performance of the thin film transistor can be avoided.

(3) And forming a semiconductor layer. In some examples, a second insulating film and a semiconductor film are deposited on a substrate, and the semiconductor film is patterned by a patterning process to form a second insulating layer and a semiconductor layer disposed on the second insulating layer. In some examples, the material of the semiconductor layer may be amorphous silicon (a-Si), polycrystalline silicon (p-Si), hexathiophene, or polythiophene, etc.

(4) And forming a first gate metal layer. In some examples, a third insulating film and a first conductive film are sequentially deposited on a substrate on which the foregoing structure is formed, and the first conductive film is patterned by a patterning process to form a third insulating layer and a first gate metal layer disposed on the third insulating layer.

(5) And forming a second gate metal layer. In some examples, a fourth insulating film and a second conductive film are sequentially deposited on a substrate on which the foregoing structure is formed, and the second conductive film is patterned by a patterning process to form a fourth insulating layer and a second gate metal layer disposed on the fourth insulating layer.

(6) And forming a first source drain metal layer. In some examples, a fifth insulating film is deposited on the substrate on which the foregoing pattern is formed, and the fourth insulating film is patterned by a patterning process to form a fifth insulating layer. The fifth insulating layer may be provided with a plurality of vias. And then, depositing a third conductive film, patterning the third conductive film through a patterning process, and forming a first source drain metal layer on the fifth insulating layer.

(7) And forming a first transparent conductive layer. In some examples, a sixth insulating film is deposited on the substrate on which the foregoing pattern is formed, and the sixth insulating film is patterned by a patterning process to form a sixth insulating layer. And then, depositing a first transparent conductive film, patterning the first transparent conductive film through a patterning process, and forming a first transparent conductive layer on the sixth insulating layer.

(8) And forming a second source drain metal layer. In some examples, a seventh insulating film is coated on the substrate on which the foregoing pattern is formed, and the seventh insulating film is patterned by a patterning process to form a seventh insulating layer. And then, depositing a fourth conductive film, patterning the fourth conductive film through a patterning process, and forming a second source drain metal layer on the seventh insulating layer.

(9) And forming a second transparent conductive layer. In some examples, an eighth insulating film is coated on the substrate on which the foregoing pattern is formed, and the eighth insulating film is patterned by a patterning process to form an eighth insulating layer. And then, depositing a second transparent conductive film, and patterning the second transparent conductive film through a patterning process to form a second transparent conductive layer. And then coating a ninth insulating film, and patterning the ninth insulating film through a patterning process to form a ninth insulating layer. The ninth insulating layer may be provided with a plurality of vias, and the plurality of vias may expose a portion of a surface of the second transparent conductive layer.

In this example, one second transparent conductive layer is described as an example. However, the present embodiment is not limited thereto. In other examples, a plurality of second transparent conductive layers may be provided, and a planarization layer may be provided between adjacent second transparent conductive layers. The number of transparent conductive lines can be increased by providing a plurality of second transparent conductive layers to facilitate increasing the sizes of the first display area and the second display area.

Thus, a circuit structure layer is prepared and formed. In some examples, the metal shielding layer, the first gate metal layer, the second gate metal layer, the first source drain metal layer, and the second source drain metal layer may be made of a metal material such as any one or more of silver (Ag), copper (Cu), titanium (Ti), aluminum (Al), and molybdenum (Mo), or an alloy material of the above metals such as aluminum neodymium (AlNd) or molybdenum niobium (MoNb), may be a single-layer structure, or a multi-layer composite structure such as Mo/Cu/Mo, ti/Al/Ti, or the like. The first transparent conductive layer and the second transparent conductive layer may be made of a transparent conductive material such as ITO. The first insulating layer, the second insulating layer, the third insulating layer, the fourth insulating layer, the fifth insulating layer, and the sixth insulating layer may employ any one or more of silicon oxide (SiOx, x > 0), silicon nitride (SiNy, y > 0), and silicon oxynitride (SiON), and may be a single layer, a multilayer, or a composite layer. The seventh insulating layer, the eighth insulating layer, and the ninth insulating layer may be made of an organic material such as polyimide, acryl, or polyethylene terephthalate. However, the present embodiment is not limited thereto.

(10) And forming a light emitting structure layer. In some examples, an anode film is deposited on a substrate forming the aforementioned pattern, and the anode film is patterned by a patterning process to form an anode layer.

In some examples, a pixel defining film is coated on a substrate on which the foregoing pattern is formed, and a pixel defining layer is formed through masking, exposure, and development processes. The pixel defining layer may be formed with a plurality of pixel openings exposing the anode layer. An organic light emitting layer is formed in the pixel opening formed as described above, and the organic light emitting layer is connected to the anode layer. And then, depositing a cathode film, patterning the cathode film through a patterning process to form a cathode pattern, wherein the cathode is connected with the organic light-emitting layer.

In some examples, the pixel defining layer may be made of an organic material such as polyimide, acryl, or polyethylene terephthalate. The anode layer can be made of reflective materials such as metal, and the cathode can be made of transparent conductive materials or metal materials.

(11) And forming a packaging structure layer. In some examples, the encapsulation structure layer may include a laminate structure of inorganic material/organic material/inorganic material.

(12) And preparing the touch control structure layer. In some examples, a first touch conductive film is deposited on the substrate 300 having the aforementioned structure, and the first touch conductive film is patterned by a patterning process to form a first touch conductive layer. And then, depositing a touch insulating film, and patterning the touch insulating film through a patterning process to form a touch insulating layer. And then, depositing a second touch conductive film, and patterning the second touch conductive film through a patterning process to form a second touch conductive layer. And then, coating a touch protection film to form a touch protection layer.

In some examples, the touch insulating layer may employ any one or more of silicon oxide (SiOx, x > 0), silicon nitride (SiNy, y > 0), and silicon oxynitride (SiON), which may be a single layer, a multi-layer, or a composite layer. The touch protection layer may be made of an organic material such as polyimide, acrylic resin, or polyethylene terephthalate.

(13) And preparing the color filter layer. In some examples, a light shielding film is coated on the substrate 300 forming the foregoing structure, and the light shielding film is patterned by a patterning process to form a light shielding layer. For example, the light shielding layer may include at least: the first shading layer is positioned in the third type display area, the second shading layer is positioned in the second display area, and the third shading layer is positioned in the first display area. In some examples, the light shielding layer may be an organic insulating layer, and for example, an organic material such as polyimide, acrylic, or polyethylene terephthalate may be used. For example, the light shielding layer has a visible light transmittance of 10% or less and an infrared light transmittance of 10% or more.

In some examples, the first, second, and third light-shielding layers may be formed using the same material and may be prepared using the same patterning process. In other examples, the first light-shielding layer, the second light-shielding layer and the third light-shielding layer may be made of materials having different infrared light transmittance, for example, the first light-shielding layer, the second light-shielding layer and the third light-shielding layer may be sequentially formed, or the first light-shielding layer, the second light-shielding layer and the third light-shielding layer may be formed through the same patterning process after different light-shielding materials are coated on different display areas. The present embodiment is not limited thereto.

Subsequently, a plurality of filter units of different colors are sequentially formed in the display area. For example, the plurality of filter units may include: a plurality of red filter units, a plurality of blue filter units and a plurality of green filter units. Taking the example of forming the red filter unit, the red filter unit may be formed by coating red resin on the structure with the light shielding layer formed, baking and curing, exposing through a mask, and developing. The forming process of the green filter unit and the blue filter unit is similar, so that the description thereof is omitted.

And then, coating a protective film, and patterning the protective film through a patterning process to form the color film protective layer. In some examples, the color film protective layer may be an organic insulating layer, for example, an organic material such as Polyimide (PI) may be used.

The structure of the display substrate of the present embodiment and the process of manufacturing the same are merely an exemplary illustration. In some examples, the corresponding structure may be altered and the patterning process increased or decreased as desired. The preparation process of the embodiment can be realized by using the existing mature preparation equipment, can be well compatible with the existing preparation process, and has the advantages of simple process realization, easy implementation, high production efficiency, low production cost and high yield.

The display substrate provided by the example is internally provided with the first pixel circuit connected with the first light-emitting element of the first display area and the second display area, the second pixel circuit connected with the second light-emitting element is externally provided with the light-emitting element which is externally provided with the pixel circuit, and the light-emitting element which is internally provided with the pixel circuit can be reasonably arranged, so that the optimal combination of the light transmittance and the size of the first display area and the second display area is realized, and the performance and the user experience of the display substrate are improved. Moreover, by setting the first display area and the second display area which have the same or different light transmittance, different functional requirements can be satisfied.

FIG. 9 is another exemplary illustration of a partial cross section of a third type of display area in accordance with at least one embodiment of the present utility model. Fig. 10 is another exemplary diagram of a partial cross section of a second display area according to at least one embodiment of the utility model. FIG. 11 is a partial cross-sectional view of a first display area according to at least one embodiment of the present utility model. Fig. 9 illustrates a partial cross-sectional structure of a fourth light emitting element (e.g., red light emitting element) of the third type display region emitting light of the first color and a fourth pixel circuit electrically connected to the fourth light emitting element. Fig. 10 illustrates a partial cross-sectional structure of a first light emitting element (e.g., a red light emitting element or a blue light emitting element) of the second display region emitting light of a first color (or light of a second color) and a first pixel circuit to which the first light emitting element is connected. Fig. 11 illustrates a partial cross-sectional structure of a first light emitting element (e.g., a red light emitting element or a blue light emitting element) of the first display region emitting light of a first color (or light of a second color) and a first pixel circuit to which the first light emitting element is connected.

In some examples, as shown in fig. 9 to 11, the circuit structure layer 31 of the display substrate may include, in a direction perpendicular to the display substrate: the metal shielding layer, the semiconductor layer, the first gate metal layer, the second gate metal layer, the first transparent conductive layer, the first source drain metal layer, the second source drain metal layer, and the second transparent conductive layer are sequentially disposed on the substrate 300. In this example, the first transparent conductive layer may be located at a side of the first source drain metal layer near the substrate 300. In the preparation process of the display substrate, after the fifth insulating layer is prepared, the first transparent conductive layer may be prepared first, then the first source drain metal layer may be prepared, and then the sixth insulating layer and the seventh insulating layer may be sequentially prepared. The rete setting order of this example is favorable to guaranteeing the planarization of rete, and first source leaks metal level and realizes the electricity through with first transparent conducting layer direct contact and connect moreover, need not to increase the quantity of insulating layer, and is favorable to reducing trompil technology, can simplify the preparation, reduce cost. The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

Fig. 12 is another exemplary view of a partial cross section of a first display area according to at least one embodiment of the present utility model. Fig. 12 illustrates a partial cross-sectional structure of one second light emitting element of the first display region. In some examples, as shown in fig. 12, the cathode layer of the light emitting structure layer 32 of the first display region may include at least: and a cathode 223b of the second light emitting element. For example, the cathodes of the plurality of light emitting elements of the first display region may be an integrally connected structure, and the integrally connected structure may have a plurality of openings. The orthographic projection of the plurality of openings on the substrate and the orthographic projection of the light emitting areas of the plurality of light emitting elements on the substrate may not overlap. In this example, the light emitting region of the light emitting element may refer to an overlapping region of the anode, the organic light emitting layer, and the cathode of the light emitting element within the pixel opening of the pixel defining layer. As shown in fig. 12, both sides of the cathode 223b of the second light emitting element may be opened such that the cathode 223b may be disconnected from the cathodes of the adjacent light emitting elements, and the cathode 223b may be connected to the cathodes of the adjacent light emitting elements at least one side. For example, the integrated structure formed by connecting the cathodes of the plurality of light emitting elements of the first display region may be a mesh structure. The present example may be advantageous to enhance the light transmittance of the first display region by patterning the cathode of the first display region to form an opening.

In some examples, the cathodes of the light emitting elements of the second, and third type display regions may be of an integral structure connected to each other, and may be of a full-face structure. However, the present embodiment is not limited thereto. In other examples, the cathode of the integrally connected light-emitting element of the second display region may have an opening, and the opening may not overlap with an orthographic projection of the light-emitting region of the light-emitting element on the substrate. For another example, the cathode connected to the light emitting element of the third type display region may have an opening, and the opening and the orthographic projection of the light emitting region of the light emitting element on the substrate may not overlap. The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

Fig. 13 is another exemplary schematic diagram of a partial cross section of a first display area according to at least one embodiment of the utility model. Fig. 13 illustrates a partial cross-sectional structure of one second light emitting element of the first display region. In some examples, as shown in fig. 13, the light emitting structure layer 32 of the first display region may further include: and an auxiliary cathode 323. The auxiliary cathode 323 is located at a side of the cathode 223b of the second light emitting element remote from the substrate 300. The auxiliary cathode 323 may connect cathodes of adjacent light emitting elements. For example, the auxiliary cathode 323 may have an entire structure covering the first display region. The auxiliary cathode 323 may employ a transparent conductive material to ensure light transmittance of the first display region. However, the present embodiment is not limited thereto. In other examples, the auxiliary cathode may be located on a side of the cathode layer close to the substrate and on a side of the organic light emitting layer remote from the substrate, and the auxiliary cathode may enable connection of the organic light emitting layer and the cathode layer. In other examples, the cathodes of the plurality of light emitting elements within the second display region may also be electrically connected through the auxiliary electrode. In other examples, a cathode connection electrode may be disposed on the first transparent conductive layer, electrical connection of cathodes of adjacent light emitting elements may be achieved through the cathode connection electrode, and the cathode connection electrode may be made of a transparent conductive material, so that an influence on light transmittance of the first display region may be reduced. The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

Fig. 14 is another exemplary diagram of a partial cross section of a second display area according to at least one embodiment of the present utility model. Fig. 14 illustrates a partial cross-sectional structure of a first light emitting element (e.g., a red light emitting element or a blue light emitting element) of the second display region emitting light of a first color (or light of a second color) and a first pixel circuit to which the first light emitting element is connected.

In some examples, as shown in fig. 14, in a direction perpendicular to the display substrate, the circuit structure layer 31 of the display substrate may include: the metal shielding layer, the semiconductor layer, the first gate metal layer, the second gate metal layer, the first source drain metal layer, the first transparent conductive layer, the second source drain metal layer, and the two second transparent conductive layers are sequentially disposed on the substrate 300. The first and second transparent conductive layers may include at least: a third anode connection electrode 316b and a conductive connection line 16a, a second transparent conductive layer is disposed on a side of the first transparent conductive layer away from the substrate 300, a ninth insulating layer 309 may be disposed between the second transparent conductive layers, and a tenth insulating layer 310 may be disposed on a side of the second transparent conductive layer away from the substrate 300. The second transparent conductive layer may include at least: a fourth anode connection electrode 317b and a conductive connection line 16b. By providing two second transparent conductive layers in this example, the number of conductive connection lines can be increased, which is advantageous for increasing the size of the second display area. The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

Fig. 15 is another partial schematic view of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 15, the first display area a11 of the display substrate may include: a plurality of first light emitting elements 21, a plurality of second light emitting elements 22, and a plurality of first pixel circuits 11. The at least one first light emitting element 21 may be adjacent to the at least one second light emitting element 22. The second display area a12 may include: a plurality of first light emitting elements 21, a plurality of second light emitting elements 22, and a plurality of first pixel circuits 11. The second display area a13 may include: a plurality of first light emitting elements 21 and a plurality of first pixel circuits 11. The light transmittance of the first display area a11 may be greater than or equal to the light transmittance of the second display area a12, and the light transmittance of the second display area a12 may be greater than the light transmittance of the second display area a 13. A plurality of invalid pixel circuits 15 may be disposed in the second type display area A2 at both sides of the second display area a 13.

In the display substrate of this example, a first display area a11 and a second display area a12 adopt a mode of combining an external pixel circuit with an internal pixel circuit, and another second display area a13 adopts a mode of combining an internal pixel circuit, so that a plurality of first type display areas with different light transmittance can be realized, thereby meeting various functional requirements. The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

FIG. 16 is another schematic partial view of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 16, the first display area a11 of the display substrate may include at least: a plurality of first light emitting elements 21, a plurality of second light emitting elements 22, and a plurality of first pixel circuits 11. The at least one first light emitting element 21 may be adjacent to the at least one second light emitting element 22. The second display areas a12 and a13 may each include: a plurality of first light emitting elements 21 and a plurality of first pixel circuits 11. The first display area a11 may be a combination of an internal pixel circuit and an external pixel circuit, and the second display areas a12 and a13 may be a combination of an internal pixel circuit and an external pixel circuit.

In the display substrate of this example, a mode of combining the external pixel circuit and the internal pixel circuit is adopted in the first display area a11, and a mode of combining the internal pixel circuit is adopted in the two second display areas a12 and a13, so that a plurality of first type display areas with different light transmittance can be realized, thereby meeting various functional requirements. The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

FIG. 17 is another schematic diagram of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 17, the first display area a11 of the display substrate may include at least: a plurality of second light emitting elements 22. The second display areas a12 and a13 may each include: a plurality of first light emitting elements 21 and a plurality of first pixel circuits 11. The first display area a11 may be an external pixel circuit, and the second display areas a12 and a13 may be internal pixel circuits.

According to the display substrate of the example, the pixel circuit external mode is adopted in the first display area A11, the pixel circuit internal mode is adopted in the two second display areas A12 and A13, and therefore a plurality of first type display areas with different light transmittance can be achieved, and various functional requirements are met. The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

In other examples, the first display area may be an external pixel circuit, one second display area may be an internal pixel circuit, and the other second display area may be a combination of an internal pixel circuit and an external pixel circuit. However, the present embodiment is not limited thereto.

Fig. 18 is another schematic view of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 18, the plurality of first type display regions may include: a first display area a11 and two second display areas a12 and a13. The second display area a12, the first display area a11, and the second display area a13 may be sequentially arranged in the first direction X, and the first display area a11 may be located between the second display areas a12 and a13. The first display area a11 and the adjacent second display area may be spaced apart by the second type display area A2. The arrangement of the display areas of this example can be advantageous for matching the arrangement of the under-screen functional devices, and also helps to ensure the display uniformity of the entire display area.

Fig. 19 is a schematic structural view of a first type display area according to at least one embodiment of the present utility model. In some examples, as shown in fig. 19, the plurality of first light emitting elements of the first type display region may include: a plurality of first light emitting elements 21a emitting light of a first color and a plurality of first light emitting elements 21b emitting light of a second color. The plurality of second light emitting elements 22 of the first type display region may be configured to emit light of a third color. The first light emitting element of the first type of display area may be adjacent to at least one second light emitting element 22. The plurality of first pixel circuits of the first type display region may include: a first pixel circuit 11a electrically connected to the first light emitting element 21a, and a first pixel circuit 11b electrically connected to the first light emitting element 21b. There may be overlap between the front projection of the second light emitting element 22, which is external to the pixel circuit, on the substrate and the front projection of the first circuit lead 17 on the substrate, and there may be no overlap between the front projection of the second circuit lead 18 on the substrate. The first circuit lead 17 and the second circuit lead 18 may be of a same layer structure. The first circuit lead 17 and the second circuit lead 18 may be made of a transparent conductive material, thereby improving light transmittance of the first type display region. For example, the first circuit lead 17 located under the second light emitting element 22 in the first display region may be connected to the first pixel circuit in the second display region adjacent in the first direction X and the pixel circuit in the second type display region, thereby achieving signal transmission in the first direction X. However, the present embodiment is not limited thereto. In other examples, there may be overlap between the front projection of the second light emitting element external to the pixel circuit and the front projection of the second circuit lead on the substrate, and there may be no overlap between the front projection of the second light emitting element external to the pixel circuit and the front projection of the first circuit lead on the substrate. Alternatively, the orthographic projection of the second light emitting element external to the pixel circuit on the substrate and the orthographic projections of the first circuit lead and the second circuit lead on the substrate may each at least partially overlap.

The rest of the structure of the display substrate in this example can be referred to the description of the foregoing embodiments, and thus will not be repeated here.

FIG. 20 is another schematic diagram of a display substrate according to at least one embodiment of the utility model. In some examples, as shown in fig. 20, the plurality of first type display regions may include: a first display area a11 and two second display areas a12 and a13. The second display areas a12 and a13 may be arranged along the first direction X, and the first display area a11 and the second display area a12 are not aligned in the first direction X. For example, the first display area a11, the second display area a12, and a13 may be arranged in a substantially triangular manner. The first display area a11 and the adjacent second display area may be spaced apart by the second type display area A2. However, the present embodiment is not limited thereto. In other examples, the two second display regions may be arranged and aligned along the second direction Y, the first display region may be located at one side of the two second display regions in the first direction X, the first display region may be aligned with one of the second display regions in the first direction X, or the first display region may not be aligned with the two second display regions in the first direction X. In other examples, the first display area and one of the second display areas may be arranged and aligned along the second direction Y, and the other of the second display areas may be located at one side of the first display area in the first direction X.

Fig. 21 is a schematic diagram of a display device according to at least one embodiment of the utility model. As shown in fig. 21, the present embodiment provides a display device 91 including: a display substrate 910. In some examples, the display substrate 910 may be a flexible OLED display substrate, a QLED display substrate, a Micro-LED display substrate, or a Mini-LED display substrate. The display device 91 may be a product having an image (including a still image or a moving image, wherein the moving image may be a video) display function. For example, the display device 91 may be: any one of a display, a television, a billboard, a digital photo frame, a laser printer with a display function, a telephone, a mobile phone, a picture screen, a personal digital assistant (PDA, personal Digital Assistant), a digital camera, a portable camcorder, a viewfinder, a navigator, a vehicle, a large-area wall, an information inquiry apparatus (such as a business inquiry apparatus for an e-government, a bank, a hospital, an electric power department, etc.), a monitor, and the like. As another example, the display device 91 may be a micro-display, any product of VR device or AR device including a micro-display, or the like.

In some examples, the display device may further include: at least one under-screen device located away from the light-emitting side (side other than the display surface) of the display substrate 910. The front projection of the off-screen device onto the display substrate 91 overlaps with the first type of display area.

Fig. 22 is a schematic partial cross-sectional view of a display device according to at least one embodiment of the utility model. Fig. 22 illustrates a cross-sectional structure of the display substrate in fig. 1A or 1B in the second direction Y. In some examples, as shown in fig. 22, the display apparatus may include three under-screen devices 920a, 920b, and 920c. The three first type display areas may be in one-to-one correspondence with the three off-screen devices. The front projection of the under-screen device 920a on the display substrate 910 may overlap the first display area a11, the front projection of the under-screen device 920b on the display substrate 910 may overlap the second display area a12, and the front projection of the under-screen device 920c on the display substrate 910 may overlap the second display area a 13.

In some examples, under-screen device 920a may be a camera, under-screen device 920b may be an infrared emitter, and under-screen device 910c may be an infrared receiver. The infrared emitter and the infrared receiver cooperate to perform infrared recognition, such as face recognition. The light transmittance of the first display area a11 corresponding to the under-screen device 920a may be greater than the light transmittance of the two second display areas a12 and a13, thereby implementing the under-screen photographing and image capturing functions. The infrared light transmittance of the two second display areas a12 and a13 may be greater than the visible light transmittance, so that the emission and the reception of infrared light are realized, for example, the face recognition is performed. However, the present embodiment is not limited thereto. In other examples, the three under-screen devices 920a, 920b, and 920c may each be a camera, and the light transmittance of the first display region and the two second display regions may be the same or different. In other examples, three under-screen devices 920a, 920b, and 920c may each be a sensor, such as an infrared sensor, and the infrared light transmittance of the first display region and the two second display regions may be greater than the visible light transmittance. In other examples, the three under-screen devices may be other types of sensors, such as distance sensors or ambient light sensors, etc.

The drawings in the present utility model relate only to the structure to which the present utility model relates, and other structures may be referred to as general designs. Features of embodiments of the utility model, i.e. embodiments, may be combined with each other to give new embodiments without conflict. It should be noted that the above-described examples or implementations are merely exemplary and not limiting. Accordingly, the utility model is not limited to what has been particularly shown and described herein. Various modifications, substitutions, or omissions may be made in the form and details of the embodiments without departing from the scope of the utility model.

Claims

1. A display substrate, comprising: a plurality of first type display areas, a second type display area located on at least one side of the plurality of first type display areas; the light transmittance of the second type display region is less than or equal to the light transmittance of the plurality of first type display regions;

the plurality of first type display regions satisfy at least one of:

at least one first type display region of the plurality of first type display regions includes: a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of first pixel circuits provided over a substrate;

at least one first type display region of the plurality of first type display regions includes: a plurality of first light emitting elements and a plurality of first pixel circuits provided on a substrate, and at least another first type display region includes: a plurality of second light emitting elements provided over the substrate;

Wherein at least one first pixel circuit of the plurality of first pixel circuits is electrically connected to at least one first light emitting element of the plurality of first light emitting elements, and at least one second light emitting element of the plurality of second light emitting elements is electrically connected to at least one second pixel circuit of the plurality of second pixel circuits located in the second type display region.

2. The display substrate of claim 1, wherein the at least one first type of display area comprises: a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of first pixel circuits;

in the at least one first type display region, adjacent first pixel circuits along a first direction are electrically connected through at least one first circuit lead, adjacent first pixel circuits along a second direction are electrically connected through at least one second circuit lead, and at least one second light emitting element is electrically connected with at least one second pixel circuit located in the second type display region through at least one conductive connection line; the first direction intersects the second direction;

the at least one electrically conductive connection line is located on a side of the at least one first circuit lead and the at least one second circuit lead remote from the substrate.

3. The display substrate according to claim 2, wherein in a direction perpendicular to the display substrate, the display substrate comprises at least: a substrate, a circuit structure layer and a light emitting structure layer arranged on the substrate; the circuit structure layer at least comprises: the plurality of first pixel circuits and the plurality of second pixel circuits; the light emitting structure layer includes at least: the plurality of first light emitting elements and the plurality of second light emitting elements;

the circuit structure layer at least comprises: a semiconductor layer, a first gate metal layer, a second gate metal layer, a first source drain metal layer, a first transparent conductive layer, a second source drain metal layer, and at least one second transparent conductive layer disposed on the substrate;

wherein the at least one first circuit lead and the at least one second circuit lead are located in the first transparent conductive layer; the at least one conductive connection line is located in the at least one second transparent conductive layer.

4. The display substrate of claim 3, wherein the first transparent conductive layer is located on a side of the first source drain metal layer adjacent to the substrate;

or the first transparent conductive layer is positioned on one side of the first source-drain metal layer away from the substrate, and at least one insulating layer is arranged between the first transparent conductive layer and the first source-drain metal layer.

5. The display substrate of claim 2, wherein the plurality of first light-emitting elements of the at least one first type of display region comprises: a plurality of first light emitting elements emitting light of a first color, and a plurality of first light emitting elements emitting light of a second color; the plurality of second light emitting elements are configured to emit a third color light;

in the at least one first type of display region, the orthographic projection of the at least one first light emitting element emitting light of a first color on the substrate at least partially overlaps the orthographic projection of the connected first pixel circuit on the substrate; the orthographic projection of the at least one first light emitting element emitting the second color light on the substrate is overlapped with the orthographic projection of the connected first pixel circuit on the substrate at least partially;

the orthographic projection of the at least one second light-emitting element emitting the third color light on the substrate and the orthographic projection of the connected second pixel circuit on the substrate are not overlapped.

6. The display substrate of claim 5, wherein the orthographic projection of the at least one second light emitting element emitting light of a third color on the substrate does not overlap with orthographic projections of the first and second circuit leads on the substrate.

7. The display substrate according to claim 5, wherein a front projection of the at least one second light emitting element emitting light of a third color on the substrate overlaps a front projection of the first circuit lead on the substrate and does not overlap a front projection of the second circuit lead on the substrate;

or, the orthographic projection of the at least one second light-emitting element emitting the third color light on the substrate is overlapped with the orthographic projection part of the second circuit lead on the substrate, and is not overlapped with the orthographic projection of the first circuit lead on the substrate.

8. The display substrate of claim 1, wherein the plurality of first type display regions comprise: at least one first display area and at least one second display area; the light transmittance of the first display area is greater than the light transmittance of the second display area.

9. The display substrate of claim 8, wherein the plurality of first type display regions comprise: a first display area and two second display areas; the first display area and the two second display areas are arranged along one direction, and the first display area is positioned between the two second display areas.

10. The display substrate according to claim 9, wherein the first display area and the two second display areas are sequentially connected along an arrangement direction, or the first display area and the second display area adjacent along the arrangement direction are separated by the second type display area.

11. The display substrate of claim 8, wherein the display substrate further comprises: a light shielding layer positioned on one side of the plurality of first light emitting elements and the plurality of second light emitting elements away from the substrate; the infrared light transmittance of the light shielding layer is greater than or equal to the visible light transmittance.

12. The display substrate of claim 11, wherein the display substrate further comprises: the light shielding layer is provided with a plurality of light shielding openings, and at least one light filtering unit in the plurality of light filtering units is positioned in the corresponding light shielding opening;

the light shielding layers of the second display area are arranged continuously, the light shielding layers of the first display area comprise a plurality of light shielding blocks which are arranged independently, and at least one light shielding block in the plurality of light shielding blocks is located around the at least one light filtering unit.

13. The display substrate of claim 1, wherein the at least one first type of display region comprises a plurality of light-emitting elements having cathodes that are integrally formed with one another, and wherein the integrally formed structure has a plurality of openings that do not overlap in orthographic projection of the substrate with orthographic projection of the light-emitting regions of the plurality of light-emitting elements on the substrate.

14. The display substrate of claim 1, wherein the at least one first type of display region comprises a plurality of cathodes of light emitting elements disposed independently, the cathodes of the plurality of light emitting elements are electrically connected by an auxiliary cathode, the auxiliary cathode is located on a side of the cathodes of the plurality of light emitting elements remote from the substrate, and the auxiliary cathode is of a transparent conductive material.

15. The display substrate of claim 1, wherein the second type of display area further comprises: the display device comprises a plurality of third pixel circuits and a plurality of third light emitting elements, wherein at least one third pixel circuit in the plurality of third pixel circuits is electrically connected with at least one third light emitting element in the plurality of third light emitting elements, and the plurality of second pixel circuits are arranged among the plurality of third pixel circuits at intervals.

16. The display substrate of claim 15, wherein the display substrate further comprises: a third type display area located on at least one side of the second type display area; the light transmittance of the third type display region is smaller than the light transmittance of the plurality of first type display regions and larger than the light transmittance of the second type display region; alternatively, the light transmittance of the third type display region is smaller than the light transmittance of the second type display region, and the light transmittance of the second type display region is smaller than the light transmittance of the plurality of first type display regions;

the third type display area includes: a plurality of fourth pixel circuits and a plurality of fourth light emitting elements, at least one of the plurality of fourth pixel circuits being electrically connected to at least one of the plurality of fourth light emitting elements.

17. A display device comprising the display substrate according to any one of claims 1 to 16.