CN113299857B

CN113299857B - Display substrate and display panel

Info

Publication number: CN113299857B
Application number: CN202110562355.XA
Authority: CN
Inventors: 樊聪; 都蒙蒙; 仝可蒙; 田东辉; 何帆; 董向丹
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: 2021-05-21
Filing date: 2021-05-21
Publication date: 2024-04-16
Anticipated expiration: 2041-05-21
Also published as: CN113299857A

Abstract

The invention provides a display substrate and a display panel, and relates to the technical field of display. The display substrate includes: a display region and a peripheral region surrounding the display region, the peripheral region including a GOA region located on at least one of opposite sides of the display region; each side GOA region comprises at least three GOA subregions which are distributed along a first direction in sequence, wherein the first direction is the direction in which the display region points to the GOA region; each GOA subarea comprises a substrate, an organic layer and an electrode layer which are sequentially stacked; the organic layer between every two adjacent GOA subareas has a first gap, the electrode layer between every two adjacent GOA subareas has a second gap, and the orthographic projection of the second gap on the substrate at least covers the orthographic projection of the first gap on the substrate. The display substrate can release the gas generated by the organic layer in the substrate, so that the erosion of the gas to the display substrate is avoided, and the display effect is improved.

Description

Display substrate and display panel

Technical Field

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

Background

With the rapid development of display technology, performance requirements of display products are increasing. The organic film layer of the display product is very easy to be slightly degraded or decomposed under the high-temperature environment of the subsequent process, and gas such as water vapor or oxygen is generated. The gases are sealed inside the display product, so that the display product is easily corroded, and the display effect is reduced.

Currently, there is a need to provide a new display substrate to solve the above-mentioned problems.

Disclosure of Invention

The embodiment of the invention provides a display substrate and a display panel, wherein the display substrate can release gas generated by an organic layer in the substrate, so that the erosion of the gas to the display substrate is avoided, and the display effect is improved.

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

in one aspect, there is provided a display substrate including: a display region and a peripheral region surrounding the display region, the peripheral region including a GOA region located on at least one of opposite sides of the display region;

each side of the GOA region comprises at least three GOA subregions which are distributed along a first direction in sequence, wherein the first direction is the direction in which the display region points to the GOA region; each GOA subarea comprises a substrate, an organic layer and an electrode layer which are sequentially stacked;

the organic layer between every two adjacent GOA subareas has a first gap, the electrode layer between every two adjacent GOA subareas has a second gap, and the orthographic projection of the second gap on the substrate at least covers the orthographic projection of the first gap on the substrate.

Optionally, the peripheral area further includes a first routing area, and a side of the first routing area is adjacent to a side of the GOA area;

the first wiring area comprises at least three first wiring sub-areas which are distributed in sequence along a second direction, and the second direction is the direction in which the display area points to the first wiring area; each first wiring subarea also comprises the substrate, the organic layer and the electrode layer which are sequentially stacked;

and a third gap exists in the organic layer between every two adjacent first wire-laying sub-regions, a fourth gap exists in the electrode layer between every two adjacent first wire-laying sub-regions, and the orthographic projection of the fourth gap on the substrate at least covers the orthographic projection of the third gap on the substrate.

Optionally, the peripheral area further includes a second routing area, where a side of the second routing area is adjacent to a side of the GOA area and is opposite to a side of the first routing area;

the second wiring area comprises two second wiring sub-areas which are distributed in sequence along a third direction, and the third direction is the direction in which the display area points to the second wiring area; each second wiring subarea also comprises the substrate, the organic layer and the electrode layer which are sequentially stacked;

a fifth gap exists in the organic layer between two adjacent second wire-laying sub-regions, a sixth gap exists in the electrode layer between two adjacent second wire-laying sub-regions, and orthographic projection of the sixth gap on the substrate at least covers orthographic projection of the fifth gap on the substrate.

Optionally, the first gap, the third gap, and the fifth gap are in communication, and the second gap, the fourth gap, and the sixth gap are in communication.

Optionally, the width of the first gap along the first direction is equal to the width of the second gap along the first direction.

Optionally, the width of the fifth gap in the third direction is greater than or equal to twice the width of the first gap in the first direction, and the width of the sixth gap in the third direction is greater than or equal to twice the width of the second gap in the first direction.

Optionally, the bases in the GOA sub-area, the first routing sub-area and the second routing sub-area each include a substrate and a plurality of conductive layers arranged on the substrate, and two adjacent conductive layers are separated by an insulating layer;

and a plurality of conductive layers in the GOA subareas form a GOA circuit, a plurality of conductive layers in the first wiring subareas form a control signal line, and a plurality of conductive layers in the second wiring subareas form a power signal line.

Optionally, the GOA subregions in the GOA region are in one-to-one correspondence with the first wire-laying subregions in the first wire-laying region;

and the control signal line in each first wiring subarea is connected with the GOA circuit in the corresponding GOA subarea.

Optionally, in the second wiring area, the power signal line in the second wiring sub-area far from the display area is a first power signal line, and the power signal line in the second wiring sub-area near to the display area is a second power signal line;

the second power supply signal line also extends to an area between the GOA area and the display area and an area between the first wiring area and the display area; the first power signal line also extends to an area of the GOA area far away from one side of the display area, and an area of the first wiring area far away from one side of the display area.

Optionally, the display substrate further includes a pixel defining layer, the pixel defining layer covers the electrode layer in the peripheral region, and the pixel defining layer further extends into a gap formed by each electrode layer in the peripheral region and into a gap formed by each organic layer.

In another aspect, there is provided a display panel comprising the display substrate as described above.

The embodiment of the invention provides a display substrate and a display panel, wherein the display substrate comprises a display area and a peripheral area surrounding the display area, and the peripheral area comprises a GOA area positioned on at least one of two opposite sides of the display area; each side GOA region comprises at least three GOA subregions which are distributed along a first direction in sequence, wherein the first direction is the direction in which the display region points to the GOA region; each GOA subarea comprises a substrate, an organic layer and an electrode layer which are sequentially stacked; the organic layer between every two adjacent GOA subareas has a first gap, the electrode layer between every two adjacent GOA subareas has a second gap, and the orthographic projection of the second gap on the substrate at least covers the orthographic projection of the first gap on the substrate.

In the display substrate provided by the embodiment of the invention, on one hand, the first gap is arranged in the organic layer between every two adjacent GOA subareas, so that the total material amount of the organic layer in the display substrate is reduced, and the gas amount generated by degradation or decomposition of the organic layer in the subsequent process is greatly reduced; on the other hand, by arranging a second gap in the electrode layer on the organic layer between every two adjacent GOA subregions, after the electrode layer is manufactured, the residual gas in the organic layer can be released from the second gap in the electrode layer, so that the gas content in the display substrate is further reduced; therefore, the content of the gas in the display substrate is greatly reduced, so that the erosion of the gas to the internal structure of the display substrate is greatly reduced, and the display effect is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required for the description of the embodiments or the prior art will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a display substrate in the related art;

FIG. 2 is a schematic diagram of another display substrate in the related art;

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

FIG. 4 is a cross-sectional view of the display substrate of FIG. 3 along a first direction at a first gap location;

FIG. 5 is another cross-sectional view of the display substrate of FIG. 3 in a first direction at a first gap location;

FIG. 6 is a schematic structural diagram of another display substrate according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a display substrate according to another embodiment of the present invention;

FIG. 8 is a schematic diagram of a gas release channel according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another display substrate according to an embodiment of the invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the embodiments of the present invention, unless otherwise indicated, the meaning of "plurality" is two or more; the orientation or positional relationship indicated by the term "upper" or the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplification of description, and does not indicate or imply that the structures or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

In order to clearly describe the technical solution of the embodiments of the present invention, in the embodiments of the present invention, the terms "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect, and those skilled in the art will understand that the terms "first", "second", etc. are not limited to the numbers.

With rapid development and application of flexible display technology, AMOLED (Active-matrix organic light emitting diode, active matrix organic light emitting diode) display products are increasingly used in flexible vehicle display, notebook (Notebook), VR (Virtual Reality) and other fields. Because the vehicle-mounted display has special use environment, the vehicle-mounted display needs to have the characteristics of long service life, high stability of products in external high-low temperature environments and the like, and therefore the requirements of the flexible vehicle-mounted display on AMOLED technology are more strict. Currently, in the process of reliability testing, the display product of the AMOLED technology is very easy to have the phenomena of disqualification of the reliability testing and bad GDS (Growing Dark Spot, growing small black dots). The research shows that the phenomena of disqualification of the reliability test and bad GDS are caused by erosion of a certain film layer in the peripheral area of the display substrate by vapor or oxygen and the like, and the erosion of the vapor or oxygen and the like can cause damage to the relevant film layer forming the circuit in the peripheral area or local Peeling (Peeling) of the film layer, thereby affecting the display effect.

Current small-sized display products are typically designed with grooves 2 in the organic layer in the peripheral region surrounding the display region 3 (AA region) as shown in fig. 1. Fig. 2 is a schematic structural diagram of a peripheral area located at the left side of the display area AA in fig. 1, a groove 2 is disposed between two adjacent GOA areas 1 in the peripheral area, the groove 2 penetrates through the organic layer and the anode layer located on the organic layer, and gas generated by the organic layer in the display substrate can be released through the groove 2. However, for the medium-and-large-sized display products, the screen size is more than 2 times larger than that of the mobile phone products, and the requirements for optical parameters such as brightness uniformity (LUR) and the driving capability of the GOA circuit are higher, so that the Design Rule (Design Rule) of the peripheral area of the existing small-sized display products is not in accordance with the use requirement of the medium-and-large-sized display products. In order to improve the brightness uniformity (LUR) of the medium-large size display product and the driving capability of GOA circuits, a plurality of groups of GOA driving circuits are designed in the peripheral area of the medium-large size display product, and the power line VSS in the peripheral area is widened, however, the design change causes the width of a frame (Bezel) to be obviously increased (for example, the width of the frame is more than or equal to 2.0 mm), and the reliability test of the display product is seriously disqualified due to the gas such as water vapor, oxygen and the like generated by a large-area organic layer in the peripheral area, and the serious GDS/GDSO bad problem occurs in the use process. Based on the above design change, the scheme of providing a groove 2 between two adjacent GOA areas 1 of the small-sized display product in the related art is insufficient to release the gas in the current display product, and the problems of reliability and GDS/GDSO failure cannot be improved.

It should be noted that the reliability test is a reliability test for a display product, and the test items are generally: high temperature and high humidity environment test, high temperature operation test, low temperature operation test, etc.

To solve the above problems, an embodiment of the present invention provides a display substrate, as shown in fig. 3, including: a display area AA and a peripheral area BB surrounding the display area AA, the peripheral area BB including a GOA area CC located on at least one of opposite sides of the display area AA;

each side GOA area CC comprises at least three GOA subareas C1 which are distributed in sequence along a first direction OA direction, wherein the first direction OA direction is the direction that the display area AA points to the GOA area CC; each GOA subregion C1 comprises a substrate 10, an organic layer (PLN) 11 and an electrode layer 12, which are arranged in sequence in a stacked manner;

the organic layer 11 between every two adjacent GOA subregions C1 has a first gap 13 and the electrode layer 12 between every two adjacent GOA subregions C1 has a second gap, and the orthographic projection of the second gap onto the substrate 10 covers at least the orthographic projection of the first gap 13 onto the substrate 10.

The peripheral area BB is also called a frame area, and the peripheral area BB is disposed around the display area AA, and only the peripheral area BB located at one side of the display area AA is shown in fig. 3.

Wherein the peripheral area BB may include one GOA area CC located at one side of the display area AA, for example, one GOA area CC located at one of the left or right sides of the display area AA; alternatively, two GOA areas CC respectively located at opposite sides of the display area AA may be included, for example, the two GOA areas CC are divided into left and right sides of the display area AA.

The first direction may be an OA direction as shown in fig. 3, or may be a direction opposite to the OA direction, which may be specifically determined according to the actual situation.

The GOA zone CC comprises at least three GOA sub-zones C1; among the three GOA subregions, one GOA subregion near the display area AA may include a Gate GOA circuit (Gate GOA), a second GOA subregion distributed along the first direction OA may include a first reset GOA circuit (RST 1 GOA), and a third GOA subregion distributed along the first direction OA may include a second reset GOA circuit (RST 2 GOA) and a light emission control GOA circuit (EM GOA). Of course, more GOA subregions may also be included in the GOA region CC of the display substrate, which may be specifically determined according to an actual GOA circuit design.

The above-mentioned orthographic projection of the second gap on the substrate 10 at least covers the orthographic projection of the first gap 13 on the substrate 10 means that: referring to fig. 4, the orthographic projection of the second gap in the electrode layer 12 on the substrate 10 just covers the orthographic projection of the first gap 13 in the organic layer 11 on the substrate 10, that is, the side edge of the electrode layer 12 close to the second gap is aligned with the side edge of the organic layer 11 close to the first gap 13; alternatively, referring to fig. 5, the front projection of the second gap in the electrode layer 12 onto the substrate 10 covers not only the front projection of the first gap 13 in the organic layer 11 onto the substrate 10, but also the front projection of a part of the organic layer 11 onto the substrate 10, so that the front projection of the electrode layer 12 onto the substrate 10 in the peripheral region is located within the front projection of the organic layer 11 onto the substrate 10.

The material of the organic layer 11 is an organic material, and the specific type of the organic material is not limited herein, and may be specifically determined according to the product requirement.

The electrode layer 12 is made of a conductive material, and the electrode layer 12 formed by the conductive material has a good sealing effect on the organic layer 11, and gas such as water vapor or oxygen generated by degradation or decomposition in the organic layer 11 can be sealed between the electrode layer 12 and the organic layer 11.

Here, whether the electrode layer 12 is a transparent electrode is not limited. In the embodiments of the present invention, the electrode layer 12 is a transparent electrode, and the gaps on the electrode layer 12 are not shown in all the drawings provided by the embodiments of the present invention because the electrode layer 12 is transparent.

The number of the first gap 13 and the second gap is not limited here. The number of the first gaps 13 and the second gaps may be 1; alternatively, the number of the first gaps 13 may be plural, and if the number is plural, the first gaps may be arranged at intervals or may be arranged in communication with each other, and the second gaps may be arranged in the same manner as the first gaps.

The extending directions of the first gap 13 and the second gap are perpendicular to the first direction OA and parallel to the plane of the substrate 10.

The display substrate may be a flexible display substrate or a rigid display substrate, and is not limited herein. The embodiments provided in the present invention are described taking the display substrate as a flexible display substrate as an example.

In the display substrate provided by the embodiment of the invention, on one hand, the first gap 13 is arranged in the organic layer 11 between every two adjacent GOA subregions C1, so that the total material amount of the organic layer 11 in the display substrate is reduced, and the gas amount generated by degradation or decomposition of the organic layer 11 in the subsequent process is greatly reduced; on the other hand, by providing a second gap in the electrode layer 12 on the organic layer 11 between every two adjacent GOA subregions C1, after the electrode layer 12 is fabricated, the gas remaining in the organic layer 11 can also be released from the second gap in the electrode layer 12, thereby reducing the gas content inside the display substrate; therefore, the content of the gas in the display substrate is greatly reduced, so that the erosion of the gas to the internal structure of the display substrate is greatly reduced, the problem of bad GDS is solved, the reliability is improved, and the display effect and the quality of the product are further improved.

Further alternatively, the display substrate further includes the following structure, on the basis that the first gap 13 is provided in the organic layer 11 between each adjacent two GOA subregions C1 as described above and the second gap is provided in the electrode layer 12 on the organic layer 11 between each adjacent two GOA subregions C1:

referring to fig. 6, the peripheral area BB further includes a first routing area DD, where a side of the first routing area DD is adjacent to a side of the GOA area CC; the first wiring area DD comprises at least three first wiring subareas D1 which are distributed in sequence along the direction of a second direction OB, wherein the direction of the second direction OB is the direction in which the display area AA points to the first wiring area DD; each first wiring sub-region D1 also includes a substrate 10, an organic layer 11, and an electrode layer 12, which are sequentially stacked as shown in fig. 4;

the organic layer 11 between every two adjacent first wire sub-areas D1 has a third gap 14, the electrode layer 12 between every two adjacent first wire sub-areas D1 has a fourth gap, and the orthographic projection of the fourth gap on the substrate 10 covers at least the orthographic projection of the third gap 14 on the substrate 10.

The meaning of the adjacent side of the first routing area DD to the side of the GOA area CC is: the first routing area DD in the peripheral area BB is located at one side of the display area AA, and the GOA area CC is located at the other side of the display area AA, and the two sides are adjacent.

The side of the first routing area DD is adjacent to the side of the GOA area CC, and if the display substrate includes two GOA areas CC located on two opposite sides of the display area AA, the first routing area DD is further located between the two opposite GOA areas CC. In practical applications, when the two GOA areas CC may be respectively located on the left side and the right side of the display area AA, the first routing area DD is located on the upper side of the display area AA.

The second direction may be the OB direction as shown in fig. 6, or may be a direction opposite to the OB direction, and may be specifically determined according to the actual situation.

The above-mentioned orthographic projection of the fourth gap on the substrate 10 at least covers the orthographic projection of the third gap 14 on the substrate 10 means that: the orthographic projection of the fourth gap in the electrode layer 12 on the substrate 10 just covers the orthographic projection of the third gap 14 in the organic layer 11 on the substrate 10, that is, the side edge of the electrode layer 12 close to the fourth gap is arranged in line with the side edge of the organic layer 11 close to the third gap 14; alternatively, the front projection of the fourth gap in the electrode layer 12 onto the substrate 10 covers not only the front projection of the third gap 14 in the organic layer 11 onto the substrate 10, but also the front projection of a part of the organic layer 11 onto the substrate 10, such that the front projection of the electrode layer 12 onto the substrate 10 is located within the front projection of the organic layer 11 onto the substrate 10.

The number of the third gap 14 and the fourth gap is not limited, and may be specifically determined according to practical situations. The extending directions of the third gap 14 and the fifth gap are perpendicular to the second direction OB and parallel to the plane of the substrate 10.

In the display substrate provided by the embodiment of the invention, the third gap 14 is arranged in the organic layer 11 between every two adjacent first wiring subareas D1, and the fourth gap is arranged in the electrode layer 12 between every two adjacent first wiring subareas D1, so that most of gas generated by degradation or decomposition of the organic layer 11 can be released, and the gas content in the display substrate is reduced; therefore, the release channels of gases such as water and oxygen are further increased, the erosion of the gases to the internal structure of the display substrate is reduced to a great extent, the bad problem of GDS is improved, the reliability is improved, and the display effect and the quality of the product are further improved.

Still further alternatively, a first gap 13 is provided in the organic layer 11 between each adjacent two GOA subregions C1 as described above, and a second gap is provided in the electrode layer 12 on the organic layer 11 between each adjacent two GOA subregions C1; the organic layer 11 between every two adjacent first wiring subareas D1 is provided with a third gap 14, and the electrode layer 12 between every two adjacent first wiring subareas D1 is provided with a fourth gap, and the display substrate further comprises the following structure:

referring to fig. 7, the peripheral area BB further includes a second routing area EE, where a side of the second routing area EE is adjacent to a side of the GOA area CC and is opposite to a side of the first routing area DD; the second wiring area EE comprises two second wiring subareas E1 which are distributed in sequence along a third direction OC, wherein the third direction OC is the direction in which the display area AA points to the second wiring area EE; each second wiring subarea E1 also comprises a substrate 10, an organic layer 11 and an electrode layer 12 which are sequentially stacked;

the organic layer 11 between two adjacent second wire sub-areas E1 has a fifth gap 15, the electrode layer 12 between two adjacent second wire sub-areas E1 has a sixth gap, and the orthographic projection of the sixth gap on the substrate covers at least the orthographic projection of the fifth gap 15 on the substrate.

The third direction may be the OC direction as shown in fig. 7 or the direction opposite to the OC direction, and may be specifically determined according to the actual situation.

The above-mentioned orthographic projection of the sixth gap on the substrate 10 at least covers the orthographic projection of the fifth gap 15 on the substrate 10 means that: the orthographic projection of the sixth gap in the electrode layer 12 on the substrate 10 just covers the orthographic projection of the fifth gap 15 in the organic layer 11 on the substrate 10, that is, the side edge of the electrode layer 12 close to the sixth gap is arranged in alignment with the side edge of the organic layer 11 close to the fifth gap 15; alternatively, the front projection of the sixth gap in the electrode layer 12 onto the substrate 10 covers not only the front projection of the fifth gap 15 in the organic layer 11 onto the substrate 10, but also the front projection of a part of the organic layer 11 onto the substrate 10, such that the front projection of the electrode layer 12 onto the substrate 10 is located within the front projection of the organic layer 11 onto the substrate 10.

In practical applications, the second trace area EE is located at the lower side of the display area AA. The specific line structure included in each of the second routing sub-areas E1 in the above-described second routing area EE is not limited here. For example, the second wiring sub-area E1 typically includes the power supply line VSS or the power supply line VDD.

The number of the fifth gap 15 and the sixth gap is not limited, and may be specifically determined according to practical situations. The extending directions of the fifth gap 15 and the sixth gap are perpendicular to the third direction OC and parallel to the plane of the substrate 10.

In the display substrate provided by the embodiment of the invention, the fifth gap 15 is arranged in the organic layer 11 between the two adjacent second wiring subregions E1, and the sixth gap is arranged in the electrode layer 12 between the two adjacent second wiring subregions E1, so that most of the gas generated by degradation or decomposition of the organic layer 11 can be released, and the gas content in the display substrate is reduced; the erosion of gas to the internal structure of the display substrate is reduced to a great extent, the problem of bad GDS is improved, the reliability is improved, and the display effect and the quality of the product are further improved.

Optionally, in order to enhance the effect of releasing the gas in the display substrate, the first gap 13, the third gap 14 and the fifth gap 15 are communicated, and the second gap, the fourth gap and the sixth gap are communicated.

In practical application, referring to fig. 8, the first gap 13 in the organic layer 11 between every two adjacent GOA subregions C1, the third gap 14 in the organic layer 11 between every two adjacent first trace subregions D1, and the fifth gap 15 in the organic layer 11 between two adjacent second trace subregions E1 are in communication. The second gap in the electrode layer 12 between every two adjacent GOA subregions C1, the fourth gap in the electrode layer 12 between every two adjacent first wire subregions D1 and the sixth gap in the electrode layer 12 between two adjacent second wire subregions E1 are also in communication.

Of course, the first gap 13 and the third gap 14 may be communicated, and the fifth gap 15 may be spaced apart from the first gap 13 and the third gap 14; and the second gap is communicated with the fourth gap, the sixth gap is separated from the second gap and the fourth gap, and the specific communication and separation mode can be determined according to actual conditions.

In the display substrate provided by the embodiment of the invention, the gaps are communicated to form the closed gas release channel, so that the release effect of the gas (Outgas) such as water vapor 16 or oxygen in the organic layer 11 of the display substrate is greatly improved, meanwhile, the organic layers 11 on two sides of the gap can be separated through the blocking effect of the gaps in the organic layer 11, the path of the water vapor 16 penetrating into the display area AA in FIG. 8 is cut off, the water vapor 16 in the organic layer 11 on one side of the gap is prevented from penetrating into the organic layer 11 on the other side of the gap, the water vapor 16 in the retaining wall (Dam) made of organic materials in the peripheral area BB is prevented from penetrating into the display area AA along the organic layer 11, and the risk of GDS defects of the display panel manufactured by the display substrate is greatly reduced.

Alternatively, the width of the first gap 13 in the first direction OA is equal to the width of the second gap (not shown) in the first direction OA.

In the case where the width of the first gap 13 in the first direction OA direction is equal to the width of the second gap (not shown in the drawing) in the first direction OA direction, as shown with reference to fig. 4, the orthographic projection of the second gap in the electrode layer 12 on the substrate 10 just covers the orthographic projection of the first gap 13 in the organic layer 11 on the substrate 10, that is, the side of the electrode layer 12 close to the second gap is disposed in alignment with the side of the organic layer 11 close to the first gap 13. Therefore, the manufacturing difficulty of the display substrate can be reduced, and the production cost is reduced.

Alternatively, the width of the fifth gap 15 in the third direction OC is greater than or equal to twice the width of the first gap 13 in the first direction OA, and the width of the sixth gap in the third direction OC is greater than or equal to twice the width of the second gap in the first direction OA. In practical applications, the widths of the first gap 13 and the second gap along the first direction OA direction may be set to 12um-30um, for example: 12um, 15um or 30um; the width of each of the fifth gap 15 and the sixth gap in the third direction may be set to 62um to 80um, for example: 62um, 70um or 80um.

Here, it is not limited whether the width of the fifth gap 15 in the third direction OC is equal to the width of the sixth gap in the third direction.

In practical application, the width of the first gap 13 along the first direction OA is set to be equal to the width of the second gap (not shown in the figure) along the first direction OA, and the width of the fifth gap 15 along the third direction OC is set to be equal to the width of the sixth gap along the third direction OC, so that the manufacturing difficulty of the display substrate can be reduced, and the production cost can be reduced.

In addition, by setting the width of the fifth gap 15 in the second routing area EE located at the lower side of the display area AA along the third direction OC to be greater than or equal to twice the width of the first gap 13 in the first direction OA, the release effect of the gas (Outgas) such as water vapor 16 or oxygen in the organic layer of the display substrate can be further improved, and the risk of generating GDS defects in the display panel manufactured by the display substrate is greatly reduced.

Optionally, the substrates 10 in the GOA sub-area CC, the first trace sub-area DD and the second trace sub-area EE each include a substrate 21 and a plurality of conductive layers 23 disposed on the substrate 21, and two adjacent conductive layers 23 are spaced apart by an insulating layer 24; the plurality of conductive layers 23 located in the GOA sub-area CC constitute a GOA circuit, the plurality of conductive layers 23 located in the first trace sub-area DD constitute a control signal line, and the plurality of conductive layers 23 located in the second trace sub-area EE constitute a power signal line.

It should be noted that, referring to fig. 5, the orthographic projections of the plurality of conductive layers 23 on the substrate 21 are all located within the orthographic projections of the insulating layer 24 on the substrate 21; in addition, the organic layer 11 covers the side surface of the conductive layer 23 and the insulating layer 24, which is close to the gap, and the distance between the side surface of the organic layer 11, which is close to the gap, and the side surface of the insulating layer 24, which is close to the gap, is 5-9um, so that a part of the organic layer 11 is reserved between the area where the conductive layer 23 and the insulating layer 24 are located and the area where the gap is located, and the part of the organic layer 11 can play a role in protecting the conductive layer 23 and the insulating layer 24.

The conductive layer 23 may be a Gate layer (Gate), or may be a source drain metal layer (SD layer), and may be specifically determined according to practical situations. The substrate 10 may further include an Inorganic Layer (Inorganic Layer) 22 disposed between the substrate 21 and the conductive Layer 23, and of course, other structures may be included, which are only described herein with respect to the related structures, and the display substrate and the substrate 10 may include other structures according to the specific structure of the display substrate in the related art, which will not be described herein.

The GOA circuit may include a gate GOA circuit, a first reset GOA circuit, a second reset GOA circuit, and a light emission control GOA circuit. Note that, the gate GOA circuit is configured to provide a gate signal to the display substrate, the first reset GOA circuit is configured to provide a first reset signal to the display substrate, the second reset GOA circuit is configured to provide a second reset signal to the display substrate, and the light emission control GOA circuit is configured to provide a light emission control signal to the display substrate. By simultaneously arranging a plurality of types of GOA circuits, the GOA driving capability of the display substrate can be improved to a great extent, and then the display effect of the display substrate and the quality of products are improved.

Optionally, the GOA subregions C1 in the GOA region CC are in one-to-one correspondence with the first routing subregions D1 in the first routing region DD; and the control signal line in each first wiring subarea D1 is connected with the GOA circuit in the corresponding GOA subarea C1.

The control signal lines may include a plurality of control signal lines, such as clock signal CK signal lines or clock signal CB signal lines, in practical application, the control signal lines connect the GOA circuits of the same type located on the left and right sides of the display area AA together, and then connect the GOA circuits of the same type on the left and right sides of the display area AA with the same signal input terminal, so that the GOA circuits of the same type on the left and right sides of the display area AA input the same control signals, thereby reducing the voltage Drop (IR Drop) on the left and right sides of the display area AA of the display substrate, improving the brightness uniformity (LUR) of the display substrate, and further improving the display effect of the display substrate.

Optionally, referring to fig. 7, in the second routing area EE, the power signal line in the second routing sub-area E1 far from the display area AA is the first power signal line VSS signal line, and the power signal line in the second routing sub-area E1 near to the display area AA is the second power signal line VDD signal line; the second power signal line VDD signal line also extends to a region between the GOA region CC and the display region AA, and a region between the first routing region DD and the display region AA as in fig. 6; the first power signal line VSS signal line also extends to a region of the GOA region CC away from the display region AA side, and the first routing region DD away from the display region AA side.

By arranging the second power supply signal line VDD signal line in the area between the GOA area CC and the display area AA, the impedance of the two power supply signal lines VDD signal line can be greatly reduced, the signal transmission stability is improved, and the display effect of the display substrate is further improved.

In addition, the width of the area occupied by the first power supply signal line VSS signal line in the peripheral area BB along the first direction OA direction is set to be larger than the width of any one of the GOA subregions C1 in the GOA area CC along the first direction OA direction, so that the impedance of the first power supply signal line VSS signal line can be reduced, the driving capability of the GOA circuit can be improved, and the luminance uniformity of the display substrate can be improved.

Optionally, referring to fig. 9, the display substrate further includes a pixel defining layer 30, where the pixel defining layer 30 covers the electrode layers 12 in the peripheral region BB, and the pixel defining layer 30 further extends into a gap (Slit Merge) formed by each electrode layer 12 in the peripheral region BB and a gap formed by each organic layer 11.

In practical applications, the display substrate is heated during the preparation of the pixel defining layer 30 to cure the material of the pixel defining layer 30, at this time, the residual gas in the organic layer 11 is further released to the outside of the display substrate along the pixel defining layer 30 in the first gap 13 (or the third gap 14 or the fifth gap 15), so as to improve the release effect of the gas (Outgas) such as water vapor 16 or oxygen in the organic layer of the display substrate, and further improve the display effect.

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

The display substrate can be any one of an LCD panel, an OLED display panel, a Micro OLED display panel and a Mini LED display panel. In the embodiments of the present invention, the display panel is an OLED display panel.

The display panel provided by the embodiment of the invention can release most of the gas generated by degradation or decomposition in the organic layer 11, so that the gas content in the display substrate is reduced; the erosion of gas to the internal structure of the display substrate is reduced to a great extent, the problem of bad GDS is improved, the reliability is improved, and the display effect and the quality of the product are further improved.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A display substrate comprising a display area and a peripheral area surrounding said display area, said peripheral area comprising a GOA area on at least one of opposite sides of said display area;

a first gap exists in the organic layer between every two adjacent GOA subareas, a second gap exists in the electrode layer between every two adjacent GOA subareas, and the orthographic projection of the second gap on the substrate at least covers the orthographic projection of the first gap on the substrate;

the extending directions of the first gap and the second gap are perpendicular to the first direction and parallel to the plane where the substrate is located; the first gap separates the organic layers on both sides of the first gap.

2. The display substrate of claim 1, wherein the peripheral region further comprises a first routing region, a side of the first routing region being adjacent to a side of the GOA region;

3. The display substrate of claim 2, wherein the peripheral region further comprises a second routing region, a side of the second routing region adjacent to a side of the GOA region and disposed opposite to a side of the first routing region;

4. The display substrate according to claim 3, wherein the first gap, the third gap, and the fifth gap are in communication, and the second gap, the fourth gap, and the sixth gap are in communication.

5. The display substrate according to claim 1, wherein a width of the first gap in the first direction is equal to a width of the second gap in the first direction.

6. A display substrate according to claim 3, wherein the width of the fifth gap in the third direction is greater than or equal to twice the width of the first gap in the first direction, and the width of the sixth gap in the third direction is greater than or equal to twice the width of the second gap in the first direction.

7. The display substrate of claim 3, wherein the bases in the GOA sub-region, the first trace sub-region, and the second trace sub-region each comprise a substrate and a plurality of conductive layers disposed on the substrate, and adjacent two of the conductive layers are separated by an insulating layer;

the conductive layers in the GOA subarea form a GOA circuit, the conductive layers in the first wiring subarea form a control signal line, and the conductive layers in the second wiring subarea form a power signal line.

8. The display substrate of claim 7, wherein the GOA sub-regions within the GOA region are in one-to-one correspondence with the first wire sub-regions within the first wire region;

9. The display substrate according to claim 7, wherein in the second wiring region, the power signal line in the second wiring sub-region distant from the display region is a first power signal line, and the power signal line in the second wiring sub-region close to the display region is a second power signal line;

10. The display substrate according to any one of claims 1 to 9, further comprising a pixel definition layer that covers the electrode layers in the peripheral region, and that further extends into a gap formed by each of the electrode layers in the peripheral region and into a gap formed by each of the organic layers.

11. A display panel comprising a display substrate according to any one of claims 1-10.