CN113990185A

CN113990185A - Display substrate and display panel

Info

Publication number: CN113990185A
Application number: CN202111234525.8A
Authority: CN
Inventors: 徐元杰; 黄炜赟; 涂贵
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-01-28

Abstract

The invention provides a display substrate and a display panel, and relates to the technical field of display. The display substrate includes: a non-folding region and at least one folding region connected, the non-folding region comprising at least two non-folding sub-regions, the folding region being disposed between adjacent non-folding sub-regions; the folding area comprises a plurality of first conductive parts and a plurality of first light-emitting units arranged in an array, and the first conductive parts are electrically connected with the first light-emitting units; the non-folding region comprises a plurality of first driving units, and the first driving units are electrically connected with the first conductive parts; each of the first driving units is electrically connected to a different one of the first light emitting units through the first conductive portion, and each of the first driving units is configured to drive the different one of the first light emitting units to emit light.

Description

Display substrate and display panel

Technical Field

The invention relates to the technical field of display, in particular to a display substrate and a display panel.

Background

At present, when a mainstream foldable display substrate is used, the folding area of the foldable display substrate is often folded and opened, frequent folding and opening operations easily cause the breakage of the wiring of the folding area, the difference of the characteristics of a Thin Film Transistor (TFT) in the folding area, and the like, so that the problems of abnormal display in the folding area and the like are caused, the service effect and the service life of the foldable display substrate are influenced, and the user experience is poor.

Disclosure of Invention

Embodiments of the present invention provide a display substrate and a display panel, where the display substrate can effectively reduce problems such as abnormal display in a folding area, so as to greatly improve the use effect and the service life of the display substrate, and provide better user experience.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in one aspect, a display substrate and a display panel are provided, the display substrate includes: a non-folding region and at least one folding region connected, the non-folding region comprising at least two non-folding sub-regions, the folding region being disposed between adjacent non-folding sub-regions;

the folding area comprises a plurality of first conductive parts and a plurality of first light-emitting units arranged in an array, and the first conductive parts are electrically connected with the first light-emitting units;

the non-folding region comprises a plurality of first driving units, and the first driving units are electrically connected with the first conductive parts;

each of the first driving units is electrically connected to a different one of the first light emitting units through the first conductive portion, and each of the first driving units is configured to drive the different one of the first light emitting units to emit light.

Optionally, the display substrate includes one folding region, and the non-folding region includes two non-folding sub-regions; the folding region is arranged between two of the non-folding sub-regions;

the folding area comprises a first display area, the non-folding sub-area comprises a frame area and a second display area which are connected, and the second display area is arranged between the frame area and the first display area;

the first driving unit is arranged in the second display area; alternatively, the first driving unit is disposed in the frame region.

Optionally, the second display region further includes a plurality of second light emitting units arranged in an array;

under the condition that the first driving unit is arranged in the second display area, one first driving unit is arranged in each second display area at intervals of N second light-emitting units; wherein N is a positive integer greater than or equal to 1.

Optionally, in a case that the first driving unit is disposed in the frame region, a plurality of the first driving units are arranged in an array in each of the frame regions.

Optionally, the folding area includes a first folding sub-area and a second folding sub-area connected to each other, and the first folding sub-area is disposed between the second folding sub-area and the second display area;

the first light-emitting unit in the first folding sub-area is electrically connected with the first driving unit arranged in the non-folding sub-area connected with the first folding sub-area, and the first light-emitting unit in the second folding sub-area is electrically connected with the first driving unit arranged in the non-folding sub-area connected with the second folding sub-area.

Optionally, the non-folding region further includes a plurality of second conductive portions, and the second conductive portions are electrically connected to the first driving unit;

the first conductive part and the second conductive part are arranged on the same layer.

Optionally, the first light emitting unit includes a first electrode, the first driving unit includes a transistor, the transistor includes a first electrode, and the first electrode, the first conductive portion, the second conductive portion, and the first electrode are all electrically connected.

Optionally, the display substrate further includes a substrate; the folded region includes a first flat portion, the first conductive portion, a second flat portion, and the first electrode of the first light emitting unit, which are sequentially stacked on the substrate;

the non-folding region includes the transistor, a third flat portion, the second conductive portion, and a fourth flat portion which are stacked in this order on the substrate;

the first flat part and the third flat part are arranged on the same layer, and the thickness of the first flat part along the direction vertical to the substrate is larger than that of the third flat part along the direction vertical to the substrate;

the second flat portion and the fourth flat portion are arranged on the same layer, and the thickness of the second flat portion in the direction perpendicular to the substrate is the same as the thickness of the fourth flat portion in the direction perpendicular to the substrate.

Optionally, the second display area of the non-folding area further includes a plurality of third conductive parts, a plurality of second driving units, and a plurality of second light emitting units arranged in an array, and each of the second driving units is electrically connected to a different second light emitting unit through the third conductive part;

the first conductive part, the second conductive part and the third conductive part are arranged in the same layer.

In another aspect, a display panel is provided, which includes the display substrate.

Embodiments of the present invention provide a display substrate comprising a non-folding region and at least one folding region connected, the non-folding region comprising at least two non-folding sub-regions, the folding region being disposed between adjacent non-folding sub-regions; the folding area comprises a plurality of first conductive parts and a plurality of first light-emitting units arranged in an array, and the first conductive parts are electrically connected with the first light-emitting units; the non-folding area comprises a plurality of first driving units, and the first driving units are electrically connected with the first conductive parts; each first driving unit is electrically connected with a different first light-emitting unit through the first conductive part, and each first driving unit is configured to drive the different first light-emitting unit to emit light. Therefore, the first light-emitting unit can still emit light when the driving unit for driving the first light-emitting unit is not arranged in the folding area of the display substrate. Because the metal layer and the inorganic layer which are most easily damaged or broken, the active layer and the punching layer which are easily subjected to characteristic change due to folding are removed from the folding area, the display effect, the stability and the service life of the display substrate can be effectively enhanced, and the user experience is better.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display substrate according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another display substrate according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another display substrate according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a folding screen in the related art according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a folding screen in another related art according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a foldable screen in still another related art according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiments of the present invention, the terms "first", "second", "third", "fourth", and the like are used for distinguishing identical items or similar items having substantially the same functions and actions, and are used only for clearly describing technical solutions of the embodiments of the present invention, and are not understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

In the embodiments of the present invention, "a plurality" means two or more, and "at least one" means one or more unless specifically limited otherwise.

In the embodiments of the present invention, the terms "on" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In embodiments of the present invention, the term "electrically connected" may mean that two components are directly electrically connected, or may mean that two components are electrically connected via one or more other components; "electrically connected" may mean electrically connected by a wire, or may mean electrically connected by a radio signal.

An embodiment of the present invention provides a display substrate, which, as shown in fig. 1 and 3, includes: a contiguous non-folding region comprising at least two non-folding sub-regions C1, and at least one folding region D disposed between adjacent non-folding sub-regions C1.

Referring to fig. 1, 2 and 3, the folding region D includes a plurality of first conductive parts 11 and a plurality of first light emitting cells 21 arranged in an array, and the first conductive parts 11 and the first light emitting cells 21 are electrically connected; the non-folding region includes a plurality of first driving units 31, the first driving units 31 are electrically connected with the first conductive parts 11; each first driving unit 31 is electrically connected to a different first light emitting unit 21 through the first conductive part 11, and each first driving unit 31 is configured to drive the different first light emitting unit 21 to emit light.

The above-described contiguous non-folded region and at least one folded region. The specific number of the folding regions is not limited, and for example, the number of the folding regions may be only one, and certainly, the number of the folding regions may also be multiple, specifically depending on the actual application. Fig. 1, 2 and 3 are all illustrated by taking the example that the display substrate includes a folding region.

The non-folding region refers to a region of the display substrate other than the folding region. The specific structure of the non-folding area is not limited, and for example, the non-folding area may include a display area and a frame area, and of course, the non-folding area may also include only the display area. Fig. 1 illustrates an example where the non-folding area includes the second display area AA2 and the frame area BB, where the number of the second display area and the frame area is not specifically limited, and for example, referring to fig. 1, the non-folding area includes two second display areas AA2 and two frame areas BB. Fig. 2 is a diagram illustrating that the non-folding area includes only the second display area AA2, where the number of the second display areas is not particularly limited, and for example, referring to fig. 2, the non-folding area includes two second display areas AA 2.

The non-folding region includes at least two non-folding sub-regions. The specific number of the non-folding sub-regions is not limited herein, and for example, the non-folding region may only include two non-folding sub-regions, and certainly, the non-folding region may also include more than two non-folding sub-regions, which are shown in fig. 1 and 2 by taking the example that the non-folding region includes two non-folding sub-regions. In fig. 1 and 2, the center line L of the display substrate divides the non-folding sub-region into two mirror-symmetrical parts, each non-folding sub-region may include a display region and a frame region, and of course, each non-folding sub-region may include only a display region. Fig. 1 is an example of each of the non-folding sub-regions including a second display region AA2 and a frame region BB, where the number of the second display region and the frame region is not particularly limited, and for example, as shown in fig. 1, each of the non-folding sub-regions includes a second display region AA2 and a frame region BB. Fig. 2 is an example of each non-folding sub-region including only the second display region AA2, where the number of the second display regions is not particularly limited, and for example, as shown in fig. 2, each non-folding sub-region includes only one second display region AA 2.

Here, the material, structure, and the like of the first conductive portion are not particularly limited, and the material of the first conductive portion may be ITO (Indium Tin oxide), for example.

Here, the structure, type, etc. of the first light emitting unit are not particularly limited, and for example, the first light emitting unit may be an organic light emitting unit as shown in fig. 3, and as shown in fig. 3, the first light emitting unit 21 includes an anode 1, an organic light emitting functional layer 2, and a cathode 3, which are sequentially stacked, and the organic light emitting functional layer 2 is disposed in an opening of an adjacent pixel defining layer 81 arranged in an array. Of course, the first light emitting unit may also be a light emitting unit with other structures and types, which is subject to practical application.

The first conductive part is electrically connected to the first light emitting unit. Here, the manner, relative position, etc. of the first conductive part and the first light emitting unit being electrically connected are not specifically limited, for example, referring to fig. 1, fig. 2, and fig. 3, the first conductive part 11 is located below the first light emitting unit 21 and is electrically connected to the first light emitting unit 21 directly through the first via hole 4; the first conductive part may be located below the first light emitting unit and indirectly electrically connected to the first light emitting unit through another structure, or the first conductive part may be located above the first light emitting unit and directly electrically connected to the first light emitting unit, or the first conductive part may be located above the first light emitting unit and indirectly electrically connected to the first light emitting unit through another structure. As shown in fig. 1 and fig. 2, the first via holes 4 may be arranged in different rows, which is more beneficial to typesetting design in an actual process, and of course, the first via holes may also be arranged in the same row, specifically based on actual application.

The non-folding region includes a plurality of first driving units. Here, the structure, type, arrangement position, etc. of the first driving unit are not particularly limited, and the first driving unit may include a transistor, for example. For example, the first driving unit may be disposed in any non-folding sub-region, or the first driving unit may be disposed in a part of the non-folding sub-region, or the first driving unit may be disposed in the whole non-folding sub-region, which is subject to practical application.

The first driving unit is electrically connected to the first conductive part. The manner of electrically connecting the first driving unit and the first conductive portion is not specifically limited, and for example, the first driving unit may be directly electrically connected to the first conductive portion through the second via, and of course, the first driving unit may also be indirectly electrically connected to the first conductive portion through another structure, which is subject to practical application. Fig. 1, 2 and 3 are all shown by taking as an example that the first driving unit 31 is electrically connected to the first conductive part 11 through the second conductive part 12. As shown in fig. 1 and fig. 2, the second via holes 5 may be arranged in different rows, which is more beneficial to typesetting design in an actual process, and of course, the second via holes may also be arranged in the same row, specifically based on actual application.

The type of the Display substrate is not particularly limited, and for example, the Display substrate may be an OLED (Organic Light-Emitting Diode) Display substrate, and of course, the Display substrate may also be an LCD (Liquid Crystal Display), which is subject to practical application.

As shown in fig. 4 and 5, the foldable area 61 is disposed between the non-foldable areas 62, and the non-foldable areas 62 are mirror images about the center line R of the foldable screen, so that the foldable area needs to be folded or unfolded when the foldable screen is used. Referring again to fig. 6, the foldable area 61 of the mainstream folding screen of the related art includes a first thin film transistor 64, a first planarization layer 65, and a first organic light emitting unit 66, which are sequentially stacked on a first substrate 63. Referring to fig. 6, the first thin film transistor 64 is a top gate thin film transistor, and the top gate thin film transistor includes an active layer 67, a first inorganic gate insulating layer 68, a metal gate 69, a second inorganic gate insulating layer 70, an interlayer dielectric layer 71, and a source-drain metal layer 72, which are sequentially stacked on a first substrate 63, so that when the folding screen is frequently folded or unfolded, the following problems may occur in a foldable area of the folding screen: firstly, the metal layer and the inorganic layer of the foldable area are easy to break; or, each film layer in the first thin film transistor of the foldable area is subject to stress, so that the characteristic of the first thin film transistor is drifted, and the characteristics of the first thin film transistor are different, thereby causing abnormal display of the foldable area; and secondly, the service life of the foldable area is influenced by the factors, the service life is reduced, and the service life of the foldable screen is further influenced.

Therefore, embodiments of the present invention provide a display substrate in which each first driving unit disposed in the non-folding region is electrically connected to a different first light emitting unit disposed in the folding region through a first conductive portion, and each first driving unit is configured to drive the different first light emitting unit to emit light. Thus, referring to fig. 3, in the folding region of the display substrate provided in the embodiment of the present invention, the driving unit for driving the first light emitting unit is not disposed, and the first light emitting unit can still emit light. Because the metal layer and the inorganic layer which are most easily damaged or broken, the active layer and the punching layer which are easily subjected to characteristic change due to folding are removed from the folding area, the display effect, the stability and the service life of the display substrate can be effectively enhanced, and the user experience is better.

Alternatively, referring to fig. 1, the display substrate includes a folding region, and the non-folding region includes two non-folding sub-regions; the folding area is arranged between the two non-folding sub-areas; the folding area includes a first display area AA1, the non-folding sub-area includes a bezel area BB and a second display area AA2 connected, and the second display area AA2 is disposed between the bezel area BB and the first display area AA 1.

The first display area and the second display area refer to areas for realizing display.

The frame area is generally used for setting a driving circuit, for example: a GOA driver circuit, etc.

A specific arrangement position of the first drive unit is provided below. Referring to fig. 1, the first driving unit is disposed in the bezel area BB. Therefore, under the condition that the normal arrangement of the first driving units of the second display area is not influenced, the purpose of removing the inorganic layer and the metal layer of the folding area can be achieved, and the display effect, the stability and the service life of the display substrate are enhanced.

Here, the number, arrangement, and the like of the first driving units are not particularly limited, and for example, referring to fig. 1, the frame area BB includes four adjacent first driving units.

Another specific arrangement position of the first drive unit is provided below. Referring to fig. 2 and 3, the first driving unit 31 is disposed at the second display area AA 2. Under the condition that the first light-emitting unit of the folding area is not influenced to normally emit light, the folding area is not provided with the first driving unit, and the metal layer and the inorganic layer which are most easily damaged or broken, and the active layer and the punching layer which are easily subjected to characteristic change due to folding are removed from the folding area, so that the display effect, the stability and the service life of the display substrate are enhanced.

The number, arrangement, and the like of the first driving units are not particularly limited, and for example, as shown in fig. 2, the second display area AA2 includes four non-adjacent first driving units.

Alternatively, as shown in fig. 2, the second display area AA2 further includes a plurality of second light emitting units 22 arranged in an array; in the case where the first driving unit 31 is disposed in the second display area AA2, one first driving unit 31 is disposed at intervals of N second light emitting units 22 within each second display area AA 2; wherein N is a positive integer greater than or equal to 1.

The structure, type, etc. of the second light emitting unit are not particularly limited, and the second light emitting unit may be, for example, an organic light emitting unit as shown in fig. 3. Referring to fig. 3, the second light emitting unit 22 includes an anode 6, an organic light emitting functional layer 7, and a cathode 8, which are sequentially stacked.

In each second display area, a first driving unit is arranged at intervals of N second light-emitting units. The number, arrangement, and the like of the spaced second light emitting units are not particularly limited, and fig. 2 illustrates that N is 3, but N may also be 4, 5, 6, and the like. Referring to fig. 2, one first driving unit is disposed at intervals of 3 second light emitting units in each row, but it is also possible to dispose one first driving unit at intervals of N second light emitting units in each column, which is not particularly limited herein.

The number, the arrangement position, and the like of the first driving units are not specifically limited, and for example, referring to fig. 2, the second display area AA2 includes four first driving units, and the four first driving units are located in the same row, and of course, the N first driving units may also be located in the same column, and are not specifically limited herein.

When the first driving unit is disposed in the non-folding area, especially in the second display area of the non-folding area, the second display area provided in the embodiment of the present invention is expected to be consistent with the display area of the folding screen in the related art, which requires compressing the space occupied by the second light emitting unit in the second display area, so that the space for disposing the first driving unit is compressed in the second display area, and thus the first driving unit is added in the second display area under the condition of ensuring that the number of the second driving units in the second display area is not changed. Referring to fig. 1 and 2, a space for disposing the first driving unit is compressed every space occupied by 3 second driving units, wherein the 3 second driving units control the second light emitting units to emit light, and an additional one of the first driving units controls the first light emitting units to emit light.

The specific compression manner is not limited herein, and for example, the compression may be performed by only reducing the distance between adjacent second driving units without changing the volume of the second driving unit itself, or may also be performed by only reducing the volume of the second driving unit without changing the distance between adjacent second driving units, or may also be performed by reducing both the volume of the second driving unit itself and the distance between adjacent second driving units, which is specifically subject to actual requirements.

Alternatively, referring to fig. 1, in the case that the first driving unit is disposed in the frame area BB, a plurality of first driving units are arranged in an array in each frame area BB. Therefore, the space of the frame area can be effectively saved, and the wiring design of the frame area is more facilitated.

The number of the first driving units is not specifically limited, and for example, each frame region may include two first driving units, which is subject to practical application. Fig. 1 illustrates an example in which four driving units are arranged in each frame region.

Alternatively, referring to fig. 1, 2 and 3, the folding area includes a first folding sub-area D1 and a second folding sub-area D2 connected, and the first folding sub-area D1 is disposed between the second folding sub-area D2 and the second display area AA 2; the first light emitting cells 21 in the first folded sub-region D1 are electrically connected to the first drive unit 31 disposed in the non-folded sub-region connected to the first folded sub-region D1, and the first light emitting cells 21 in the second folded sub-region D2 are electrically connected to the first drive unit 31 disposed in the non-folded sub-region connected to the second folded sub-region D2. Therefore, the connecting wires between the first light-emitting unit and the first driving unit are as short as possible, and the typesetting design is facilitated.

The folding area comprises a first folding subarea and a second folding subarea which are connected. Here, the areas of the first folding sub-region and the second folding sub-region are not particularly limited, and the areas of the first folding sub-region and the second folding sub-region may be the same, or the areas of the first folding sub-region and the second folding sub-region may be different. When the areas of the first folding sub-region and the second folding sub-region are different, the area of the first folding sub-region may be larger than the area of the first folding sub-region, or the area of the first folding sub-region may be smaller than the area of the first folding sub-region, specifically taking practical application as a standard. For example, referring to fig. 1 and 2, the center line L of the display substrate divides the folding region into a first folding sub-region D1 and a second folding sub-region D2 which are mirror images.

In order to simplify the process and reduce the manufacturing cost, optionally, referring to fig. 3, the non-folding region further includes a plurality of second conductive parts 12, and the second conductive parts 12 are electrically connected to the first driving unit 31; the first conductive part 11 and the second conductive part 12 are provided in the same layer.

Here, the material, structure, and the like of the second conductive portion are not particularly limited, and the material of the second conductive portion may be ITO, for example.

The second conductive part is electrically connected with the first driving unit. The manner of electrically connecting the second conductive portion and the first driving unit is not particularly limited, and for example, the second conductive portion may be directly electrically connected to the first driving unit, and of course, the second conductive portion may also be indirectly electrically connected to the first driving unit through other structures. Fig. 3 illustrates an example in which the second conductive part 12 is directly electrically connected to the first driving unit 31.

The same layer setting refers to manufacturing by adopting a one-time composition process. The primary patterning process refers to a process for forming a required layer structure through primary film formation and photoetching. The primary patterning process comprises the processes of film forming, exposure, development, etching, stripping and the like.

Alternatively, referring to fig. 3, the first light emitting unit 21 includes a first electrode, the first driving unit 31 includes a transistor, the transistor includes a first pole 82, and the first electrode, the first conductive part 11, the second conductive part 12, and the first pole 82 are all electrically connected. The manufacturing process is simple and easy to realize.

Here, the type, material, and the like of the first electrode are not particularly limited, and for example, referring to fig. 3, when the first light emitting unit 21 is an organic light emitting unit, the first electrode is an anode 1, and the material of the anode 1 may be ITO; or when the first light emitting unit is a sub-pixel in an LCD, the first electrode is a pixel electrode, which is subject to practical application.

The type of the transistor is not particularly limited, and the transistor may be a TFT.

The transistor includes a first electrode, where the type, material, and the like of the first electrode are not specifically limited, for example, referring to fig. 3, when the transistor is a TFT, the first electrode of the TFT may be a drain electrode, which is subject to practical application.

Optionally, referring to fig. 3, the display substrate further includes a substrate 10; the folded region includes a first flat portion 41, a first conductive portion 11, a second flat portion 42, and a first electrode of the first light-emitting unit 21, which are sequentially stacked on the substrate 10; the non-folding region includes a transistor, a third flat portion 43, a second conductive portion 12, and a fourth flat portion 44, which are stacked in this order on the substrate 10.

The material of the substrate is not limited, and may include flexible materials, such as: polyimide (PI).

Referring to fig. 3, the first flat portion 41 is disposed on the same layer as the third flat portion 43, and a thickness d1 of the first flat portion 41 in the direction perpendicular to the substrate 10 is greater than a thickness d2 of the third flat portion 43 in the direction perpendicular to the substrate 10. Thus, the folding area can be more flat, and the bending resistance is good.

The second flat portion 42 is provided in the same layer as the fourth flat portion 44, and the thickness of the second flat portion 42 in the direction perpendicular to the substrate 10 is the same as the thickness of the fourth flat portion 44 in the direction perpendicular to the substrate 10. Therefore, the times of the composition process can be reduced, and the method is simple and easy to implement.

Optionally, referring to fig. 3, the second display region of the non-folding region further includes a plurality of third conductive parts 13, a plurality of second driving units 32, and a plurality of second light emitting units 22 arranged in an array, and each second driving unit 32 is electrically connected to a different second light emitting unit 22 through the third conductive part 13; the first conductive part, the second conductive part and the third conductive part are arranged in the same layer. Therefore, the first conductive part, the second conductive part and the third conductive part can be manufactured through a one-step composition process, the manufacturing process is simplified, and cost is saved.

Here, the material, structure, and the like of the third conductive portion are not particularly limited, and the material of the first conductive portion may be ITO (indium tin oxide), for example.

Here for the second drive unit described above. Here, the structure, type, arrangement position, etc. of the second driving unit are not particularly limited, and the second driving unit may include a transistor, for example.

The structure, type, etc. of the second light emitting unit are not specifically limited, for example, the second light emitting unit may be an organic light emitting unit as shown in fig. 3, and as shown in fig. 3, the second light emitting unit 22 includes an anode 6, an organic light emitting functional layer 7, and a cathode 8, which are sequentially stacked, and of course, the first light emitting unit may also be a light emitting unit with other structure and type, which is subject to practical application.

The embodiment of the invention also provides a display panel which comprises the display substrate.

The display panel may be a flexible display panel (also referred to as a flexible screen) or a rigid display panel (i.e., a display screen that cannot be bent), which is not limited herein. The Display panel may be an OLED (Organic Light-Emitting Diode) Display panel, and may also be an LCD (Liquid Crystal Display) Display panel. The display panel is widely applied to the fields of identity recognition, medical instruments and the like, and products which are popularized or have good popularization prospects comprise a mobile phone with a camera under a screen, a display with infrared recognition, security identity authentication, an intelligent door lock, medical image acquisition and the like. The display panel has the advantages of bending resistance, high light emitting efficiency, good display effect, long service life, high stability, high contrast ratio and the like.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A display substrate comprising a non-folding region and at least one folding region connected, wherein the non-folding region comprises at least two non-folding sub-regions, and the folding region is disposed between adjacent non-folding sub-regions;

2. The display substrate of claim 1, wherein the display substrate comprises one of the folding regions, and the non-folding region comprises two of the non-folding sub-regions; the folding region is arranged between two of the non-folding sub-regions;

3. The display substrate according to claim 2, wherein the second display region further comprises a plurality of second light emitting units arranged in an array;

4. The display substrate according to claim 2, wherein in a case where the first driving unit is disposed in the frame region, a plurality of the first driving units are arranged in an array in each of the frame regions.

5. The display substrate of claim 2, wherein the folding area comprises a first folding sub-area and a second folding sub-area connected, and the first folding sub-area is disposed between the second folding sub-area and the second display area;

6. The display substrate according to claim 1, wherein the non-folding region further comprises a plurality of second conductive portions electrically connected to the first driving unit;

7. The display substrate according to claim 6, wherein the first light-emitting unit comprises a first electrode, wherein the first driving unit comprises a transistor comprising a first pole, and wherein the first electrode, the first conductive portion, the second conductive portion, and the first pole are all electrically connected.

8. The display substrate of claim 7, further comprising a substrate; the folded region includes a first flat portion, the first conductive portion, a second flat portion, and the first electrode of the first light emitting unit, which are sequentially stacked on the substrate;

9. The display substrate according to claim 8, wherein the second display region of the non-folding region further comprises a plurality of third conductive portions, a plurality of second driving units, and a plurality of second light emitting units arranged in an array, each of the second driving units being electrically connected to a different one of the second light emitting units through the third conductive portion;

10. A display panel comprising the display substrate according to any one of claims 1 to 9.