CN113178471A - Display substrate and display device - Google Patents
Display substrate and display device Download PDFInfo
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- CN113178471A CN113178471A CN202110455977.2A CN202110455977A CN113178471A CN 113178471 A CN113178471 A CN 113178471A CN 202110455977 A CN202110455977 A CN 202110455977A CN 113178471 A CN113178471 A CN 113178471A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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Abstract
The invention discloses a display substrate and a display device, which aim to solve the problem that cracks are easy to generate due to stress concentration at a vertex angle/bulge position of a hole opening position in the prior art. The display substrate includes: a plurality of island regions which are positioned between the adjacent island regions, penetrate through the opening region of the display substrate and are connected with the bridge regions of the adjacent island regions; the island region has at least one pixel; the opening area comprises a strip-shaped main body opening area and an end opening area positioned at the end part of the main body opening area; the end opening region includes: an opposite epitaxial edge; one end of the extending edge is connected with the edge of the main body opening area, and the distance between the opposite extending edges in the direction perpendicular to the extending direction of the main body opening area is larger than the width of the main body opening area in the direction perpendicular to the extending direction of the main body opening area.
Description
Technical Field
The invention relates to the technical field of semiconductors, in particular to a display substrate and a display device.
Background
Stretchable displays provide a more flexible, imaginative application scenario requirement as a next generation new modality display technology for flexible displays. There are various methods for implementing a stretchable display, in which after a display pixel unit is fabricated on a flexible substrate, various opening designs are implemented on the substrate to implement the stretchable performance of the display.
Disclosure of Invention
The invention provides a display substrate and a display device, which aim to solve the problem that cracks are easy to generate due to stress concentration at a vertex angle/bulge position of a hole opening position in the prior art.
An embodiment of the present invention provides a display substrate, including: a plurality of island regions, an opening region penetrating through the display substrate between adjacent island regions, and a bridge region connecting adjacent island regions; the island region has at least one pixel;
the opening area comprises a strip-shaped main body opening area and an end opening area positioned at the end part of the main body opening area;
the end opening region includes: opposite epitaxial edges, and a connecting edge; one end of the extending edge is connected with the edge of the main body opening area, the other end of the extending edge is connected with the connecting edge, the opposite extending edge is connected and closed through the connecting edge, and the distance between the opposite extending edge and the direction perpendicular to the extending direction of the main body opening area is larger than the width of the main body opening area and the direction perpendicular to the extending direction of the main body opening area.
In a possible embodiment, the distance between the opposing extension edges in a direction perpendicular to the extension of the body opening region increases in the direction from the body opening region to the end opening region.
In a possible embodiment, the extension edge is rounded.
In a possible embodiment, the connecting edge is elliptical.
In a possible embodiment, the connecting edge is linear.
In a possible embodiment, the center of the circle corresponding to the extension edge coincides with the center of the connecting edge.
In a possible embodiment, the symmetry axis of the opposite extension edge coincides with the symmetry axis of the connection edge.
In a possible embodiment, the connecting edge is in the shape of an elliptical arc, and the radius of the circle corresponding to the extending edge is equal to the semi-major axis of the ellipse corresponding to the connecting edge;
or the connecting edge is linear, and the circle radius corresponding to the extending edge is equal to half of the length of the connecting edge.
In a possible embodiment, a tangent of the extension edge at the intersection with the edge of the main opening region forms a first included angle θ with the edge extension line, and the range of the first included angle θ satisfies: theta is more than 0 degree and less than 90 degrees.
In one possible embodiment, R is L/cos θ, where L represents a half of a distance between two opposite edges of the body opening region, and R represents a corresponding radius of the circle of the extension edge.
In one possible embodiment, the connecting edge is linear, and a distance c between an intersection point of the edge of the body opening region and the extension edge and the connecting edge satisfies: c is more than 0 and less than or equal to L tan theta.
In one possible embodiment, the range of L satisfies: l is more than or equal to 5 mu m and less than or equal to 50 mu m.
In a possible embodiment, the connecting edge of the elliptical arc corresponds to a range of the major semi-axis of the ellipse: 8-60 μm.
In a possible embodiment, the connecting edge of the elliptical arc corresponds to a minor semi-axis of the ellipse ranging from 4 μm to 50 μm.
The embodiment of the invention also provides a display device, which comprises the display substrate provided by the embodiment of the disclosure.
The embodiment of the invention has the following beneficial effects: in an embodiment of the present invention, the end opening region includes: opposite epitaxial edges, and a connecting edge; the structure comprises a main body opening region, a connecting edge, a main body opening region, a connecting edge and a cover plate, wherein one end of the extending edge is connected with the edge of the main body opening region, the other end of the extending edge is connected with the connecting edge, the opposite extending edge is connected and closed through the connecting edge, the distance between the opposite extending edge and the main body opening region in the extending direction perpendicular to the main body opening region is larger than the width of the main body opening region in the extending direction perpendicular to the main body opening region, stress concentration points and stress concentration are obviously improved, the pulling-up performance of a drawable substrate is improved, the problem that in the prior art, cracks are easily generated due to stress concentration at the vertex angle/protrusion positions of the opening positions is solved, and the structure is compatible with the existing production process, a new mask plate is not needed, only the design pattern of the existing mask plate needs to be changed, and the process is simple.
Drawings
FIG. 1 is a schematic diagram of a display panel according to the prior art;
FIG. 2 is a schematic illustration of a prior art open area having cracks at the ends;
FIG. 3 is a schematic stress diagram of the open area with right angle ends;
fig. 4A is a schematic view of a display substrate according to an embodiment of the invention;
fig. 4B is a second schematic view of a display substrate according to an embodiment of the invention;
fig. 5A is a partially enlarged schematic view of a display substrate according to an embodiment of the invention;
fig. 5B is a second schematic partial enlarged view of the display substrate according to the embodiment of the invention;
fig. 5C is a third schematic partial enlarged view of the display substrate according to the embodiment of the invention;
FIG. 6 is a stress diagram corresponding to FIG. 5A;
FIG. 7 is a fourth schematic partial enlarged view of a display substrate according to an embodiment of the invention;
FIG. 8 is a stress diagram of the end of the opening region in different shapes;
fig. 9 is a schematic cross-sectional view of a display substrate according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
For the stretchable display product, for an open pore structure, such as an I-shaped open pore or a straight open pore, when the substrate/display device is stretched under stress, stress concentration occurs at the top corner/protrusion position of the open pore position, and a fracture crack is preferentially generated at the stress concentration position, so that the pulling-up amount and the signal endurance of the stretchable substrate/stretchable display device are limited, and the failure risk of the display substrate/display device is increased.
For a conventional display substrate having a straight/i-shaped opening, as shown in fig. 1, the display substrate generally includes: a plurality of islands S10, an opening S20 between adjacent islands S10, and a bridge region S30 connecting adjacent islands S10; island S10 has at least one pixel p; the small deformation of the island region S10 by the large deformation of the opening region S20 during stretching ensures that the pixels in the island region S10 are not affected by tensile strain, thereby achieving the tensile deformation of the display panel. However, when stretching is performed, the perforated region S20 is subjected to a large amount of deformation, and stress concentration effect is applied to the top corner position of the perforated region S20, so that cracks preferentially concentrate at the top corner position as shown in fig. 2, and the display performance of the stretched substrate/stretched panel is deteriorated. Aiming at the stress concentration phenomenon of the open pore structure at the vertex angle position, the mechanical simulation is carried out, and the stress is concentrated at the vertex angle position, as shown in figure 3.
In view of the above, referring to fig. 4A, fig. 4B and fig. 5A, fig. 5A is a schematic partial enlarged view of the end portion of the opening region in fig. 4A and fig. 4B, and an embodiment of the invention provides a display substrate, including: a plurality of islands S1, an opening S2 between adjacent islands S1 through the display substrate, and a bridge S3 connecting adjacent islands S1; island S1 has at least one pixel p;
the opening region S2 includes a strip-shaped main body opening region S21, and an end opening region S22 located on at least one side of the main body opening region S21;
the end opening region S22 includes: opposite extension edges 2, such as two extension edges 2 located at the upper and lower sides in fig. 5A; wherein, one end of the extending edge 2 is connected with the edge 1 of the main body opening region S21, and the spacing k21 of the opposite extending edge 2 in the direction CD perpendicular to the extending direction S21 of the main body opening region S21 is larger than the width k1 of the main body opening region S21 in the direction CD perpendicular to the extending direction S21 of the main body opening region S21.
In the embodiment of the present invention, the end opening region S22 includes: the structure comprises an opposite extension edge 2, wherein one end of the extension edge 2 is connected with an edge 1 of a main body open hole region S21, the distance k21 of the opposite extension edge 2 in the CD perpendicular to the extending direction of the main body open hole region S21 is larger than the width k1 of the main body open hole region S21 in the CD perpendicular to the extending direction of the main body open hole region S21, stress concentration sites and dispersed stress concentration are obviously improved, the pulling performance of a drawable substrate is improved, the problem that cracks are easily generated due to stress concentration at vertex angles/bulge positions of open hole positions in the prior art is solved, the structure is compatible with the prior production process, a new mask plate is not needed, only the design pattern of the prior mask plate needs to be changed, and the process is simple.
In one possible embodiment, in combination with fig. 5A, the open-ended region S22 further includes: a connecting edge 3; the other end of the extension edge 2 is connected to said connecting edge 3, the opposite extension edge 2 being connected closed by the connecting edge 3.
In one possible embodiment, as shown in fig. 4A, each of the opening regions S2 includes a body opening region S21, the different body opening regions S21 are spaced apart from each other, and each of the opening regions S2 is substantially in the shape of a straight line. In another possible embodiment, as shown in fig. 4B, each of the perforated regions S2 includes three strip-shaped main body perforated regions S21, and the three main body perforated regions S21 of each of the perforated regions S2 are connected to each other to form an "i" shape.
In one possible embodiment, the distance k2 of the opposing extension edges 2 in the direction CD perpendicular to the direction of extension of the body opening region S21 increases in the direction from the body opening region S21 to the end opening region S22. Specifically, as shown in fig. 5A, the spacing k21 of the opposing epitaxial edges 2 at point E in the direction CD perpendicular to the direction of extension of the body open region S21 is less than the spacing k22 of the opposing epitaxial edges 2 at point F in the direction CD perpendicular to the direction of extension of the body open region S21. In the embodiment of the invention, the distance k2 between the opposite extending edges 2 in the direction CD perpendicular to the extending direction of the main body opening region S21 is gradually increased, so that stress concentration sites can be better improved and stress concentration can be dispersed. It can be understood that due to the limitation of process error, the "vertical" may not be the strict 90 ° vertical, and may be the included angle between the two ranges of 90 ° ± 10 °, which can achieve the technical effect of the present solution.
In a specific implementation, at least one of the two opposite extending edges 2 may have an arc shape, one of the extending edges 2 may have an arc shape, and the other extending edge may have a non-arc shape, for example, a straight line extending from the edge 1 of the main body opening region S21 in the same direction as the edge 1, as shown in fig. 5B, or a bevel extending from the edge 1 of the main body opening region S21 at a certain included angle with the edge 1 to a side away from the extension line of the edge 1, as shown in fig. 5C, or may have another shape.
In a possible embodiment, referring to fig. 5A, both the extending edges 2 are circular arcs, both the extending edges 2 correspond to a same circle, and both the extending edges 2 are symmetrical about a first straight line G1H1, the first straight line G1H1 passes through the center of the circle corresponding to the extending edge 2 and is parallel to the extending direction of the main body opening area S21. In the embodiment of the present disclosure, the two extension edges 2 are both arc-shaped, the two extension edges 2 correspond to the same circle, and the two extension edges 2 are symmetrical with respect to the first straight line G1H1, so that the effect of reducing the stress concentration problem at the vertex angle position of the open hole region in the stretching process is better.
In a possible embodiment, with reference to fig. 5A, the connecting edge 3 has the shape of an ellipse, the circle radius R corresponding to the extension edge 2 being equal to the semi-major axis a of the ellipse corresponding to the connecting edge 3. In the embodiment of the invention, the extension edge 2 is in the shape of an arc, the connecting edge 3 is in the shape of an elliptical arc, the radius R of the circle corresponding to the extension edge 2 is equal to the major semiaxis a of the ellipse corresponding to the connecting edge 3, and as shown in fig. 6, the stress is uniformly distributed on the elliptical arc and has the minimum stress value, and the stress is reduced by nearly 1 order of magnitude at the intersection point of the straight edge 1 of the main body open hole area S21 and the arc-shaped extension edge 2, so that the problem of stress concentration at the vertex angle position of the open hole area in the stretching process is effectively reduced.
In one possible embodiment, shown in fig. 7, the connecting edge 3 is linear and the corresponding radius R of the circle of the extension edge 2 is equal to half the length of the connecting edge 3. In the embodiment of the present invention, the extension edge 2 is arc-shaped, the connection edge 3 is linear, the circular radius R corresponding to the extension edge 2 is equal to half of the length of the connection edge 3, and as shown in fig. 8, fig. 8 shows the mechanical strain simulation corresponding to the structure of fig. 7, and compared with the design of the right-angled edge and semicircular opening patterns, the extension edge 2 adopting the embodiment of the present invention is arc-shaped, the connection edge 3 is designed into the linear opening structure, and the strain amount at the position point (for example, at the vertex angle a in fig. 7) where the straight-edge 1 of the main body opening area S21 intersects with the arc-shaped extension edge 2 is significantly reduced; the test results of the maximum strain (the whole tensile deformation amount of the corresponding substrate is 5%) and the strain amount at the vertex angle A show that by adopting the design pattern, the strain amount at the vertex angle is reduced, and the tensile amount of the display substrate is improved.
In a possible embodiment, shown in connection with fig. 5A and 7, the centre O of the circle corresponding to the extension edge 2 coincides with the centre O' of the connecting edge 3. Specifically, when the connecting edge 3 is in the shape of an elliptical arc, the center O' of the connecting edge 3 may be the center of the ellipse corresponding to the connecting edge 3; when the connecting edge 3 is linear, the center O' of the connecting edge 3 may be the center of the line segment corresponding to the connecting edge 3. It can be understood that, due to process errors, the difficulty is high when the circle center O corresponding to the extension edge 2 and the center O' of the connection edge 3 are required to be strictly completely coincident, and in the embodiment of the present disclosure, the "coincidence" of the two may be understood as approximately coincident within the process error range.
In a possible embodiment, shown in connection with fig. 5A or 7, the symmetry axis G1H2 of the opposite extension edge 2 coincides with the symmetry axis G2H2 of the connection edge 3. It is understood that, due to process tolerances, it is difficult to require that the symmetry axis G1H2 of the opposite extension edge 2 exactly and completely coincides with the symmetry axis G2H2 of the connection edge 3, and in the disclosed embodiment, the "coincidence" of the two is understood to be approximately coincident within the process tolerances.
In one possible embodiment, as shown in fig. 5A or fig. 7, a tangent AB of the extension edge 2 at the intersection with the edge 1 of the main opening area S21 forms an angle with an extension of the edge 1, which is a first angle θ, and the range of the first angle θ satisfies: theta is more than 0 degree and less than 90 degrees. Specifically, the range of the first included angle θ satisfies: theta is more than 40 degrees and less than 50 degrees. Specifically, the first included angle θ is 45 °.
In one possible embodiment, as shown in fig. 5A or fig. 7, R is L/cos θ, where L represents half of the distance between two opposing edges 1 of the body opening region S21, and R represents the corresponding radius R of the circle extending from the edge 2. Specifically, when the connecting edge 3 is elliptical, the circle radius R corresponding to the extension edge 2 is equal to the ellipse major semiaxis a corresponding to the connecting edge 3.
In one possible embodiment, as shown in fig. 7, when the connecting edge 3 is linear, the distance c between the connecting edge 3 and the intersection point a of the edge 1 of the body opening region S21 and the extending edge 2 satisfies: c is more than 0 and less than or equal to L tan theta.
In one possible embodiment, as shown in fig. 5A or fig. 7, the range of L satisfies: l is more than or equal to 5 mu m and less than or equal to 50 mu m. Specifically, L may be 7.5. mu.m.
In a possible embodiment, and as shown in fig. 5A, the elliptical arc-shaped connecting edge 3 has a range of the major semi-axis a of the ellipse: 8-60 μm. Specifically, the ellipse major semi-axis a may be 10.61 μm.
In one possible embodiment, shown in connection with fig. 5A, the minor axis b of the ellipse corresponding to the elliptical-arc-shaped connecting edge 3 is in the range 4 μm to 50 μm. Wherein b is less than a. Specifically, the minor semi-axis b of the ellipse may be 5 μm.
In practical implementation, the display panel provided by the embodiment of the invention may be, for example, an electroluminescent display panel. The electroluminescent display panel may be, for example, an organic light emitting diode display panel or an inorganic light emitting diode display panel or a quantum dot light emitting diode display panel. The organic light emitting diode display panel may be, for example, an Active organic electroluminescent diode (AMOLED) or a Passive organic electroluminescent diode (PMOLED).
In a specific implementation, the display substrate of the AMOLED, as shown in fig. 9, may include a substrate 11, and sequentially on one side of the substrate 11, the AMOLED includes: the organic light emitting diode comprises a buffer layer 15, an active layer 16, a first gate insulating layer 17, a first metal layer 18, a second gate insulating layer 19, a second metal layer 110, an interlayer dielectric layer 111, a third metal layer 112, a first flat layer 113, a fourth metal layer 114, a second flat layer 115, a pixel defining layer 116, an anode 117, a light emitting function layer 118, a cathode 119, and an encapsulation layer 120; the first metal layer 18 includes a gate 121 and a first electrode 122 of a capacitor, the second metal layer 110 includes a second electrode 123 of a capacitor, and the third metal layer 112 may specifically include a source 124 and a drain 125. The fourth metal layer 114 may specifically include a landing electrode 126, wherein the landing electrode 126 is, for example, in electrical communication with the drain 125. The encapsulation layer includes, for example, an inorganic encapsulation layer and an organic encapsulation layer over the inorganic encapsulation layer. Specifically, the opening region S2 penetrates through at least one of the following layers:
a substrate base plate 11;
a buffer layer 15;
a first gate insulating layer 17;
a second gate insulating layer 19;
an interlayer dielectric layer 111;
a first planarization layer 113;
a second planarization layer 115;
and an encapsulation layer 120.
In one possible embodiment, the opening S2 may penetrate the substrate 11, the buffer layer 15, the first gate insulating layer 17, the second gate insulating layer 19, the interlayer dielectric layer 111, the first planarization layer 113, the second planarization layer 115, and the encapsulation layer 120.
The embodiment of the invention also provides a display device, which comprises the display substrate provided by the embodiment of the disclosure.
The embodiment of the invention has the following beneficial effects: in the embodiment of the present invention, the end opening region S22 includes: an opposite epitaxial edge 2; one end of the extension edge 2 is connected with the edge 1 of the main body opening region S21, the opposite extension edge 2 is connected and closed through the connecting edge 3, the distance k21 of the opposite extension edge 2 in the CD perpendicular to the extending direction of the main body opening region S21 is larger than the width k1 of the main body opening region S21 in the CD perpendicular to the extending direction of the main body opening region S21, stress concentration sites and dispersed stress concentration are obviously improved, the pulling performance of the drawable substrate is improved, the problem that in the prior art, cracks are easily generated due to stress concentration at the vertex angle/protrusion position of the opening position is solved, and the method is compatible with the existing production process, does not need to newly add a mask plate, only needs to design patterns of the existing mask plate, and is simple in process.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (15)
1. A display substrate, comprising: a plurality of island regions, an opening region penetrating through the display substrate between adjacent island regions, and a bridge region connecting adjacent island regions; the island region has at least one pixel;
the opening area comprises a strip-shaped main body opening area and an end opening area positioned on at least one side of the main body opening area;
the end opening region includes: an opposite epitaxial edge; and one end of the extending edge is connected with the edge of the main body opening area, and the distance between the opposite extending edges in the direction vertical to the extending direction of the main body opening area is larger than the width of the main body opening area in the direction vertical to the extending direction of the main body opening area.
2. The display substrate of claim 1, wherein the opposing epitaxial edges have a gradually increasing spacing in a direction perpendicular to an extension direction of the body opening region in a direction from the body opening region toward the end opening region.
3. The display substrate of claim 2, wherein the end open region further comprises: connecting the edges; the other end of the extension edge is connected with the connecting edge, and the opposite extension edge is connected and closed through the connecting edge.
4. The display substrate of claim 3, wherein at least one of the extended edges is rounded.
5. The display substrate of claim 4, wherein the two extending edges are circular arcs, the two extending edges correspond to a same circle, and the two extending edges are symmetrical about a first line passing through a center of the circle corresponding to the extending edges and parallel to an extending direction of the main body opening region.
6. The display substrate of claim 5, wherein the connecting edge is shaped as an arc of an ellipse, and the radius of the circle corresponding to the extending edge is equal to the semi-major axis of the ellipse corresponding to the connecting edge.
7. The display substrate of claim 5, wherein the connecting edge is linear and the circle radius corresponding to the extending edge is equal to half of the length of the connecting edge.
8. A display substrate according to claim 6 or 7, wherein the corresponding circular centre of the epitaxial edge coincides with the centre of the connecting edge.
9. The display substrate of claim 8, wherein an axis of symmetry of the opposing epitaxial edges coincides with an axis of symmetry of the connecting edges.
10. The display substrate of claim 6, wherein the elliptical arc-shaped connecting edge corresponds to a range of elliptical major and minor axes of: 8-60 μm; the minor semi-axis of the ellipse corresponding to the connecting edge of the ellipse circular arc shape ranges from 4 mu m to 50 mu m.
11. The display substrate of claim 4, wherein a tangent line of the extension edge at the intersection with the edge of the main opening region forms a first included angle θ with the edge extension line, and the range of the first included angle θ satisfies: theta is more than 0 degree and less than 90 degrees.
12. The display substrate of claim 11, wherein R ═ L/cos θ, where L represents one-half of the distance between the two opposing edges of the body aperture region and R represents the corresponding radius of the circle of the epitaxial edge.
13. The display substrate according to claim 12, wherein the connection edge is linear, and a distance c from a junction of the edge of the body opening region and the extension edge to the connection edge satisfies: c is more than 0 and less than or equal to L tan theta.
14. The display substrate of claim 1, wherein the display substrate comprises a substrate, and on one side of the substrate in this order: the pixel structure comprises a buffer layer, an active layer, a first grid insulation layer, a first metal layer, a second grid insulation layer, a second metal layer, an interlayer dielectric layer, a third metal layer, a first flat layer, a fourth metal layer, a second flat layer, a pixel defining layer, an anode, a light-emitting function layer, a cathode and a packaging layer;
the open area penetrates through at least one of the following structures:
the buffer layer;
the first gate insulating layer;
the second gate insulating layer;
a conductive interlayer dielectric layer;
the first flat layer;
the second flat layer;
the encapsulation layer.
15. A display device comprising the display substrate according to any one of claims 1 to 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110455977.2A CN113178471A (en) | 2021-04-26 | 2021-04-26 | Display substrate and display device |
| PCT/CN2021/125543 WO2022227434A1 (en) | 2021-04-26 | 2021-10-22 | Display substrate and display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110455977.2A CN113178471A (en) | 2021-04-26 | 2021-04-26 | Display substrate and display device |
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| CN113178471A true CN113178471A (en) | 2021-07-27 |
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| CN202110455977.2A Pending CN113178471A (en) | 2021-04-26 | 2021-04-26 | Display substrate and display device |
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| WO (1) | WO2022227434A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227434A1 (en) * | 2021-04-26 | 2022-11-03 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
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| KR20180021306A (en) * | 2016-08-18 | 2018-03-02 | 삼성디스플레이 주식회사 | Display panel |
| CN109599402B (en) * | 2018-12-03 | 2021-02-09 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN110350014B (en) * | 2019-07-17 | 2021-10-26 | 京东方科技集团股份有限公司 | Display substrate, display device and preparation method of display substrate |
| CN113178471A (en) * | 2021-04-26 | 2021-07-27 | 京东方科技集团股份有限公司 | Display substrate and display device |
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- 2021-10-22 WO PCT/CN2021/125543 patent/WO2022227434A1/en unknown
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|---|---|---|---|---|
| WO2022227434A1 (en) * | 2021-04-26 | 2022-11-03 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
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