CN116456752A - Display panel, preparation method thereof and display device - Google Patents
Display panel, preparation method thereof and display device Download PDFInfo
- Publication number
- CN116456752A CN116456752A CN202310220052.9A CN202310220052A CN116456752A CN 116456752 A CN116456752 A CN 116456752A CN 202310220052 A CN202310220052 A CN 202310220052A CN 116456752 A CN116456752 A CN 116456752A
- Authority
- CN
- China
- Prior art keywords
- layer
- display area
- light
- display panel
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 115
- 239000012044 organic layer Substances 0.000 claims abstract description 115
- 239000000758 substrate Substances 0.000 claims abstract description 96
- 230000000903 blocking effect Effects 0.000 claims abstract description 60
- 239000002346 layers by function Substances 0.000 claims abstract description 37
- 238000004806 packaging method and process Methods 0.000 claims abstract description 9
- 230000004888 barrier function Effects 0.000 claims description 69
- 239000000463 material Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 229910010272 inorganic material Inorganic materials 0.000 claims description 8
- 239000011147 inorganic material Substances 0.000 claims description 8
- 239000011368 organic material Substances 0.000 claims description 8
- 239000004642 Polyimide Substances 0.000 claims description 6
- -1 polyethylene terephthalate Polymers 0.000 claims description 6
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 4
- 229920001230 polyarylate Polymers 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 4
- 239000004695 Polyether sulfone Substances 0.000 claims description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 229920006393 polyether sulfone Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 48
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 44
- 229910052760 oxygen Inorganic materials 0.000 abstract description 44
- 239000001301 oxygen Substances 0.000 abstract description 44
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 26
- 239000000853 adhesive Substances 0.000 description 22
- 230000001070 adhesive effect Effects 0.000 description 22
- 230000007547 defect Effects 0.000 description 14
- 206010027146 Melanoderma Diseases 0.000 description 13
- 238000005538 encapsulation Methods 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000005336 cracking Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H10K59/1201—Manufacture or treatment
-
- 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
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the application provides a display panel, a preparation method thereof and a display device, wherein a light hole is formed in the display panel, the display panel is provided with a first non-display area and a display area which encircle the light hole, and the first non-display area is positioned between the light hole and the display area; the first non-display area at least comprises a substrate, a light-emitting functional layer and a packaging layer which are arranged in a stacked mode, wherein an organic layer is arranged in the light-emitting functional layer, the first non-display area is provided with a blocking unit, the blocking unit surrounds the light holes, and is used for blocking at least part of the organic layer along the direction of the light holes pointing to the display area. According to the embodiment of the application, water vapor and/or oxygen can be well prevented from entering the display area around the hole area through the light transmission hole, and the problem of poor black spots in the display area around the hole area is solved.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel, a preparation method thereof and a display device.
Background
With the development of display technology, the functions of display devices are becoming more and more rich. In order to configure functional elements such as a front camera, a punched hole (light hole) is usually formed in the display panel as a light transmitting area of the functional elements such as the camera.
However, through researches of the inventor of the application, it is found that water vapor and/or oxygen easily enters the display area around the hole area through punching, so that the display area around the hole area is easy to generate GDSH (Growing Dark Spot) black spots, and the use requirement of a user cannot be met well.
Disclosure of Invention
The embodiment of the application provides a display panel, a preparation method thereof and a display device, which can better block water vapor and/or oxygen from entering a display area around a hole area through an opening, and solve the problem of poor black spots in the display area around the hole area.
In a first aspect, an embodiment of the present application provides a display panel, where a light hole is formed on the display panel, the display panel has a first non-display area surrounding the light hole and a display area, and the first non-display area is located between the light hole and the display area; the first non-display area at least comprises a substrate, a light-emitting functional layer and a packaging layer which are arranged in a stacked mode, an organic layer is arranged in the light-emitting functional layer, the first non-display area is provided with a blocking unit, the blocking unit is arranged around the light holes, and the blocking unit is used for blocking at least part of the organic layer along the direction of the light holes pointing to the display area.
According to an embodiment of the first aspect of the present application, the light-emitting functional layer includes at least one organic layer, in a thickness direction of the display panel, an organic layer farthest from the substrate in the light-emitting functional layer is a first organic layer, an organic layer closest to the substrate in the light-emitting functional layer is a second organic layer, in the thickness direction of the display panel, a first distance between a first surface of the blocking unit and the substrate is greater than or equal to a second distance between the first surface of the first organic layer and the substrate, the first surface of the blocking unit is a surface of the blocking unit away from the substrate, and the first surface of the first organic layer is a surface of the organic layer away from the substrate; along the thickness direction of the display panel, a third distance between the second surface of the barrier unit and the substrate is smaller than or equal to a fourth distance between the second surface of the second organic layer and the substrate, the second surface of the barrier unit is a surface of the barrier unit close to the substrate, and the second surface of the second organic layer is a surface of the organic layer close to the substrate.
Therefore, the first distance between the first surface of the blocking unit and the substrate is larger than or equal to the second distance between the first surface of the first organic layer and the substrate, and the third distance between the second surface of the blocking unit and the substrate is smaller than or equal to the fourth distance between the second surface of the second organic layer and the substrate, so that the blocking unit can better block the organic layer in the luminous functional layer, effectively prevent water vapor and/or oxygen from invading the display area through the organic layer of the first non-display area and/or gaps on the organic adhesive, protect display devices in the display area around the light holes from being corroded by the water vapor and/or the oxygen, improve the black spot defect of the display area around the light holes, and improve the display quality of the display panel.
According to any one of the foregoing embodiments of the first aspect of the present application, the light-emitting functional layer includes at least a driving device layer and a cathode layer that are stacked in a thickness direction of the display panel, and the organic layer includes at least one organic film layer of the driving device layer; the packaging layer at least comprises a first inorganic layer and a second inorganic layer, and the first inorganic layer is positioned between the cathode layer and the second inorganic layer along the thickness direction of the display panel; along the thickness direction of the display panel, a first distance between the first surface of the blocking unit and the substrate is greater than or equal to a fifth distance between the first surface of the driving device layer and the substrate, and the first surface of the driving device layer is a surface of the driving device layer away from the substrate.
In this way, since the first distance between the first surface of the blocking unit and the substrate is greater than or equal to the fifth distance between the first surface of the driving device layer and the substrate, the height of the blocking unit is greater than or equal to the height of the driving device layer, so that moisture and/or oxygen can be better prevented from invading into the display area through the organic layer in the driving device layer and/or the gaps on the organic adhesive.
According to any of the foregoing embodiments of the first aspect of the present application, the light-emitting functional layer further includes an organic light-emitting material layer located between the driving device layer and the cathode layer, and the organic layer further includes an organic light-emitting material layer.
According to any one of the foregoing embodiments of the first aspect of the present application, the first non-display area is provided with at least one groove disposed around the light hole, the at least one groove being arranged at intervals along a direction in which the light hole points to the display area, the at least one groove blocking the organic layer in the first non-display area into at least two portions; the blocking unit is positioned in the groove.
Therefore, on one hand, the blocking unit can better block the organic layer, effectively block water vapor and/or oxygen from invading the display area through the organic layer of the first non-display area and/or gaps on the organic adhesive, protect the display devices in the display area around the light holes from being corroded by the water vapor and/or the oxygen, improve poor black spots of the display area around the light holes, and improve the display quality of the display panel. On the other hand, the blocking unit is directly arranged in the groove, so that the processing and the preparation are convenient. On the other hand, because the stress at the groove is smaller, the blocking unit is arranged in the groove, so that the stress of the first non-display area is uniform, the situation of excessive stress concentration is avoided, and further the first non-display area is effectively prevented from cracking.
According to any of the foregoing embodiments of the first aspect of the present application, the first non-display area is provided with a retaining wall surrounding the light hole, and the groove is located between the retaining wall and the light hole along a direction in which the light hole points to the display area.
According to any of the foregoing embodiments of the first aspect of the present application, the first non-display area is further provided with a first buffer unit, and in a thickness direction of the display panel, an orthographic projection of the first buffer unit on the substrate and an orthographic projection of the barrier unit on the substrate at least partially overlap, and the first buffer unit is located on a side of the barrier unit away from the substrate.
Therefore, by additionally arranging the first buffer unit, the influence of the stress generated by water absorption of the organic glue on the blocking unit is reduced, and the cutting stress generated during cutting is buffered, so that the stress at the position of the blocking unit is not excessively concentrated, and the risk of cracking is reduced.
According to any of the foregoing embodiments of the first aspect of the present application, the first buffer unit is located in the groove.
On one hand, the first buffer unit is directly arranged in the groove, so that the processing and the preparation are convenient; on the other hand, the first buffer unit can better buffer the cutting stress generated during cutting and the stress generated by water absorption of the organic adhesive.
According to any of the foregoing embodiments of the first aspect of the present application, the first non-display area is further provided with a second buffer unit, and in a thickness direction of the display panel, an orthographic projection of the second buffer unit on the substrate and an orthographic projection of the barrier unit on the substrate at least partially overlap, and the second buffer unit is located on a side of the barrier unit close to the substrate.
So, through addding the second buffer unit, can cushioning effect, the better buffering cutting produces the cutting stress when preparing the light trap for the stress of separation unit place can not excessively concentrate, further reduces the risk of taking place the crackle. In addition, the separation unit above the second buffer unit can better separate the organic layer, effectively prevent water vapor and/or oxygen from invading the display area through the organic layer of the first non-display area and/or the gap on the organic adhesive, protect the display devices in the display area around the light holes from being corroded by the water vapor and/or the oxygen, improve the bad black spots of the display area around the light holes, and improve the display quality of the display panel.
According to any of the foregoing embodiments of the first aspect of the present application, the second buffer unit is located in the groove.
On one hand, the second buffer unit is directly arranged in the groove, so that the processing and the preparation are convenient; on the other hand, the second buffer unit can better buffer the cutting stress generated when the light holes are prepared by cutting.
According to any of the preceding embodiments of the first aspect of the present application, the material of the barrier unit comprises an inorganic material.
According to any of the foregoing embodiments of the first aspect of the present application, the inorganic material comprises silicon nitride, silicon oxide, or silicon oxynitride.
Therefore, as the compactness of inorganic materials such as silicon nitride, silicon oxide or silicon oxynitride is better, water vapor and/or oxygen can be better prevented from invading the display area through the organic layer of the first non-display area and/or the gaps on the organic adhesive, the display devices in the display area around the light holes are protected from being corroded by the water vapor and/or the oxygen, and the bad black spots of the display area around the light holes are improved.
According to any of the foregoing embodiments of the first aspect of the present application, the materials of the first buffer unit and the second buffer unit each comprise an organic material.
Therefore, the flexibility of the organic material is good, so that the cutting stress generated when the light holes are prepared by cutting and the stress generated by water absorption of the organic adhesive can be well buffered.
According to any of the foregoing embodiments of the first aspect of the present application, the organic material comprises polyimide, polycarbonate, polyethersulfone, polyethylene terephthalate, polyethylene naphthalate, polyarylate, or glass fiber reinforced plastic.
In a second aspect, an embodiment of the present application provides a method for manufacturing a display panel, where the display panel includes the display panel provided in the first aspect, and the method for manufacturing a display panel includes: providing a substrate; forming a light-emitting functional layer on one side of the substrate, wherein an organic layer is arranged in the light-emitting functional layer, at least one groove surrounding a light hole is etched on the light-emitting functional layer positioned in the first non-display area, and the at least one groove is used for blocking at least part of the organic layer in the first non-display area along the direction that the light hole points to the display area; a barrier unit is formed in the recess.
In a third aspect, embodiments of the present application provide a display device including a display panel as provided in the first aspect.
According to the display panel, the preparation method thereof and the display device, the blocking unit surrounding the light holes is arranged in the first non-display area between the light holes and the display area, the blocking unit can be used for blocking at least part of organic layers in the luminous functional layers along the direction of the light holes pointing to the display area, so that water vapor and/or oxygen are effectively prevented from invading the display area through gaps on the organic layers in the first non-display area, namely, the display devices in the display area around the light holes are protected from being corroded by the water vapor and/or oxygen, and further, poor black spots of the display area around the light holes are improved, and the display quality of the display panel is improved. In addition, when the first non-display area is coated with the organic adhesive, the blocking unit and/or the packaging layer can also effectively block water vapor and/or oxygen from invading the display area through the gaps of the organic adhesive on the first non-display area, further protect the display devices in the display area around the light holes from being corroded by the water vapor and/or the oxygen, improve the black spot defect of the display area around the light holes, and improve the display quality of the display panel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
FIG. 1 is a schematic illustration of a display panel;
fig. 2 is a schematic top view of a display panel according to an embodiment of the present disclosure;
FIG. 3 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure;
FIG. 4 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure;
FIG. 5 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure;
fig. 6 is another schematic top view of a display panel according to an embodiment of the disclosure;
FIG. 7 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure;
FIG. 8 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure;
FIG. 9 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure;
FIG. 10 is a schematic view of a display panel according to another embodiment of the present disclosure;
FIG. 11 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure;
fig. 12 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present disclosure;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative of the application and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the embodiments herein, the term "electrically connected" may refer to two components being directly electrically connected, or may refer to two components being electrically connected via one or more other components.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Accordingly, this application is intended to cover such modifications and variations of this application as fall within the scope of the appended claims (the claims) and their equivalents. The embodiments provided in the examples of the present application may be combined with each other without contradiction.
Before describing the technical solution provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the related art:
The display panel typically includes a physical cut-out area (e.g., a punched hole), for example, to allow the front-facing camera to receive light. However, through researches of the inventor of the application, it is found that water vapor and/or oxygen easily enters the display area around the hole area through punching, so that the display area around the hole area is easy to generate GDSH (Growing Dark Spot) black spots, and the use requirement of a user cannot be met well.
Fig. 1 is a schematic view of a display panel. Specifically, as shown in fig. 1, the display panel is provided with a punched hole (or light hole) 101', and a non-display area NA is provided between the punched hole 101' and the display area AA. Some of the film layers in the non-display area NA are organic layers, and the film layer surfaces of the non-display area NA are coated with an organic gel. After the display panel is subjected to high-temperature and high-humidity testing, cracks are generated due to the fact that the organic layer and/or the coated organic adhesive in the non-display area absorbs water, and the evaporation of water vapor is accelerated at high temperature, so that water vapor and/or oxygen easily invades into the display area AA through the packaging layer through gaps of the organic layer and/or the organic adhesive, erodes display devices in the display area AA around the punched holes 101', and further causes black spots (black spots shown in fig. 1) to influence the display effect of the display panel.
In view of the above-mentioned research of the inventor, the embodiment of the application provides a display panel, a preparation method thereof and a display device, which can solve the technical problem that the display area around the hole area is easy to cause black spot defect in the related technology.
The technical conception of the embodiment of the application is as follows: the first non-display area between the light hole and the display area is provided with the blocking unit surrounding the light hole, and the blocking unit can be used for blocking at least part of the organic layers in the luminous functional layer along the direction of the light hole pointing to the display area, so that water vapor and/or oxygen can be effectively blocked from invading the display area through gaps on the organic layers in the first non-display area, namely, the display devices in the display area around the light hole are protected from being corroded by the water vapor and/or the oxygen, and further, the black spot defect of the display area around the light hole is improved, and the display quality of the display panel is improved. In addition, when the first non-display area is coated with the organic adhesive, the blocking unit and/or the packaging layer can also effectively block water vapor and/or oxygen from invading the display area through the gaps of the organic adhesive on the first non-display area, further protect the display devices in the display area around the light holes from being corroded by the water vapor and/or the oxygen, improve the black spot defect of the display area around the light holes, and improve the display quality of the display panel.
The following first describes a display panel provided in an embodiment of the present application.
Fig. 2 is a schematic top view of a display panel according to an embodiment of the present application. As shown in fig. 2, the display panel 20 provided in the embodiment of the present application is formed with a light hole 101, and the display panel 20 has a first non-display area NA1 surrounding the light hole 101 and a display area AA, wherein the first non-display area NA1 is located between the light hole 101 and the display area AA. It is easy to understand that the first non-display area NA1 is not provided with a display device (or light emitting element), and the display area AA is provided with a display device, so that the display area AA can display pictures. In some examples, for example, the display panel 20 may further include a second non-display area NA2 located at least one side of the display area AA, which is not limited in the embodiment of the present application.
Fig. 3 is a schematic partial cross-sectional view of a display panel according to an embodiment of the disclosure. As shown in fig. 2 and 3, the first non-display area NA1 includes at least a substrate 01, a light-emitting functional layer 02, and an encapsulation layer 03, which are stacked. The light-emitting functional layer 02 is provided with an organic layer 021. The first non-display area NA1 may be provided with a barrier unit 301, and the barrier unit 301 may be disposed around the light-transmitting hole 101, i.e., around the light-transmitting hole 101 for at least one week. The barrier unit 301 may serve to block at least a portion of the organic layer 021 in the first non-display area NA1 along a direction in which the light transmitting hole 101 is directed to the display area AA (a direction indicated by an arrow in fig. 2). For example, in some embodiments, the barrier unit 301 may be used to block the organic layer 021 in the first non-display area NA1 into a first portion a near the light transmitting hole 101 and a second portion b near the display area AA.
Fig. 4 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application. As shown in fig. 4, for example, in some embodiments, under the barrier of the barrier unit 301, the bottom of the organic layer 021 in the first non-display area NA1 may still have a small portion connected, i.e., the barrier unit 301 may block a large portion of the organic layer 021. Of course, under the barrier of the barrier unit 301, the bottom of the organic layer 021 in the first non-display area NA1 may not be connected, and the barrier unit 301 completely blocks the organic layer 021 in the first non-display area NA 1.
Fig. 5 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application. As shown in fig. 5, for example, in some embodiments, the first non-display area NA1 may have only a partial area where the organic layer 021 is present and another partial area where the organic layer 021 is not present. For example, the organic layer 021 may not be present in the area a between the barrier unit 301 and the light-transmitting hole 101, for example, along the direction in which the light-transmitting hole 101 points to the display area AA, and the organic layer 021 may be present in the area B on the side of the barrier unit 301 away from the light-transmitting hole 101. The barrier unit 301 serves to block the organic layer 021 in the region B from extending toward the region a.
According to the display panel provided by the embodiment of the application, the blocking unit 301 blocks at least part of the organic layer 021 in the first non-display area NA1, so that water vapor and/or oxygen can be effectively blocked from invading the display area AA through a gap (as shown by an invasion path 1 shown by a dotted line in fig. 3) on the organic layer 021 in the first non-display area NA1, namely, the display devices in the display area AA around the light holes 101 are protected from being corroded by water vapor and/or oxygen, so that the black spot defect of the display area around the light holes is improved, and the display quality of the display panel is improved.
With continued reference to fig. 2, in some embodiments, the blocking unit 301 is disposed around the light hole 101, and may specifically be in a closed ring shape. In this way, the blocking unit 301 can completely block the organic layer 021 in the first non-display area NA1, and preferably block the intrusion of water vapor and/or oxygen into the display area AA through the gaps on the organic layer 021 in the first non-display area NA 1.
Fig. 6 is another schematic top view of a display panel according to an embodiment of the present application. In other embodiments, as shown in fig. 6, the blocking unit 301 may also have a ring shape with an opening k. At the opening k, the organic layers 021 may be connected without disconnection, i.e., a portion of the organic layers 021 may be connected without disconnection, and the blocking unit 301 blocks most of the organic layers 021.
With continued reference to fig. 3, the first non-display area NA1 may also be coated with an organic glue 04. In some examples, the barrier unit 301 may be particularly located between the substrate 01 and the encapsulation layer 03 in the thickness direction Z of the display panel, i.e., the barrier unit 301 may be covered by the encapsulation layer 03. In this way, the encapsulation layer 03 can effectively prevent water vapor and/or oxygen from invading the display area AA through the gaps (the invasion paths 2 shown by the solid lines in fig. 3) of the organic adhesive 04 on the first non-display area NA1, further protect the display devices in the display area AA around the light holes 101 from being corroded by water vapor and/or oxygen, improve the black spot defect of the display area around the light holes, and improve the display quality of the display panel.
Fig. 7 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application. As shown in fig. 7, in other examples, the barrier unit 301 may be specifically located at a side of the encapsulation layer 03 away from the organic layer 021 in the thickness direction Z of the display panel. In this way, since the blocking unit 301 blocks the organic layer 021 in the first non-display area NA1 into at least two parts, the blocking unit 301 can effectively block the intrusion of water vapor and/or oxygen into the display area AA through the slit (intrusion path 2 shown by the solid line in fig. 7) of the organic adhesive 04 on the first non-display area NA1, further protect the display devices in the display area AA around the light-transmitting holes 101 from being corroded by water vapor and/or oxygen, improve the black spot defect of the display area around the light-transmitting holes, and improve the display quality of the display panel.
As shown in fig. 3 or 7, according to some embodiments of the present application, optionally, the light emitting functional layer 02 includes at least one organic layer 021, and a first distance h1 between a first surface a1 of the barrier unit 301 and the substrate 01 may be greater than or equal to a second distance h2 between a first surface b1 of the organic layer 021 and the substrate 01, and a third distance h3 between a second surface of the barrier unit 301 and the substrate 01 may be less than or equal to a fourth distance h4 between a second surface of the organic layer 021 and the substrate 01 along a thickness direction Z of the display panel. The first surface a1 of the barrier unit 301 is a surface of the barrier unit 301 away from the substrate 01, and the second surface of the barrier unit 301 is a surface of the barrier unit 301 close to the substrate 01. The first surface b1 of the organic layer 021 is a surface of the organic layer 021 far from the substrate 01, and the second surface of the organic layer 021 is a surface of the organic layer 021 near to the substrate 01.
In this way, since the first distance h1 between the first surface a1 of the barrier unit 301 and the substrate 01 is greater than or equal to the second distance h2 between the first surface b1 of the organic layer 021 and the substrate 01, and the third distance h3 between the second surface of the barrier unit 301 and the substrate 01 is less than or equal to the fourth distance h4 between the second surface of the organic layer 021 and the substrate 01, the barrier unit 301 can better block the organic layer 021, effectively prevent water vapor and/or oxygen from invading into the display area AA through the gaps on the organic layer 021 and/or the organic adhesive 04 of the first non-display area NA1, protect the display devices in the display area AA around the light-transmitting holes 101 from being corroded by water vapor and/or oxygen, improve the black speck defect of the display area around the light-transmitting holes, and improve the display quality of the display panel.
When the light-emitting functional layer 02 includes a plurality of organic layers 021, the organic layer 021 of the light-emitting functional layer 02 farthest from the substrate is a first organic layer, and the organic layer 021 of the light-emitting functional layer 02 closest to the substrate is a second organic layer along the thickness direction of the display panel. The first distance h1 between the first surface a1 of the barrier unit 301 and the substrate 01 is greater than or equal to the second distance h2 between the first surface b1 of the organic layer 021 (i.e., the first organic layer) farthest from the substrate and the substrate 01, and the third distance h3 between the second surface of the barrier unit 301 and the substrate 01 is less than or equal to the fourth distance h4 between the second surface of the organic layer 021 (i.e., the second organic layer) closest to the substrate and the substrate 01, i.e., the barrier unit 301 may simultaneously block the plurality of organic layers 021, effectively blocking the intrusion of moisture and/or oxygen into the display area AA through the gaps on the organic layer 021 and/or the organic adhesive 04 of the first non-display area NA 1.
Fig. 8 is a schematic partial cross-sectional view of a display panel according to an embodiment of the disclosure. As shown in fig. 8, according to some embodiments of the present application, optionally, the light emitting functional layer 02 includes at least a driving device layer 501 and a cathode layer 502 that are stacked in the thickness direction Z of the display panel. The organic layer 021 may include at least one organic film layer in the driving device layer 501. For example, the driving device layer 501 includes a planarization layer PLN (not shown) and a pixel definition layer PDL (not shown). Among them, in the thickness direction Z of the display panel, the planarization layer PLN may be located between the metal layer in the driving device layer 501 and the pixel definition layer PDL, and the planarization layer PLN mainly plays a role of planarizing the surface. In the display area AA, the pixel defining layer PDL may be provided with pixel openings, which serve to accommodate light emitting elements. The organic layer 021 may be specifically a planarization layer PLN and/or a pixel definition layer PDL.
The encapsulation layer 03 may include at least a first inorganic layer 602 and a second inorganic layer 603. The first inorganic layer 602 is located between the cathode layer 502 and the second inorganic layer 603 along the thickness direction Z of the display panel.
In some specific embodiments, the first distance h1 between the first surface a1 of the barrier unit 301 and the substrate 01 may be greater than or equal to the fifth distance h5 between the first surface c1 of the cathode layer 502 (or the second surface of the first inorganic layer 602) and the substrate 01 in the thickness direction Z of the display panel. The first surface c1 of the cathode layer 502 is a surface of the driving device layer 501 away from the substrate 01, and the second surface of the first inorganic layer 602 is a surface of the first inorganic layer 602 close to the substrate 01. The first surface c1 of the cathode layer 502 is in contact with the second surface of the first inorganic layer 602.
In this manner, since the first distance h1 between the first surface a1 of the barrier unit 301 and the substrate 01 is greater than or equal to the fifth distance h5 between the first surface c1 of the cathode layer 502 (or the second surface of the first inorganic layer 602) and the substrate 01, the height of the barrier unit 301 is greater than or equal to the height of the entire light emitting functional layer 02, and thus moisture and/or oxygen can be well prevented from penetrating into the display area AA through the gaps on the organic layer 021 and/or the organic gel 04 in the driving device layer 501.
In some embodiments, the light emitting functional layer 02 may further include an organic light emitting material layer 503 between the driving device layer 501 and the cathode layer 502. That is, the first non-display region may be provided with the organic light emitting material layer 503, but the light emitting material layer 503 in the first non-display region may not emit light, for example, the first non-display region may not be provided with a pixel circuit driving the light emitting material layer 503 to emit light. The organic light emitting material layer 503 may be provided with a red light emitting material, a blue light emitting material, and a green light emitting material, for example. The organic layer 021 may further include an organic light emitting material layer 503.
In this manner, since the first distance h1 between the first surface a1 of the barrier unit 301 and the substrate 01 is greater than or equal to the fifth distance h5 between the first surface c1 of the cathode layer 502 (or the second surface of the first inorganic layer 602) and the substrate 01, the height of the barrier unit 301 is greater than or equal to the height of the entire light emitting functional layer 02, and thus moisture and/or oxygen can be well prevented from penetrating into the display area AA through the gaps on the organic layer 021 and/or the organic gel 04 in the driving device layer 501.
Fig. 9 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application. As shown in fig. 9, the first non-display area NA1 is optionally provided with at least one groove 601 arranged around the light-transmitting hole 101 according to some embodiments of the present application. At least one groove 601 is arranged at intervals along the direction in which the light transmitting holes are directed to the display area (direction X shown by an arrow in fig. 9). The at least one groove 601 may block the organic layer 021 in the first non-display area NA1 into at least two parts. For example, it is shown in fig. 9 that 4 grooves 601,4 grooves 601 may block the organic layer 021 in the first non-display area NA1 into 5 parts. When the light-transmitting holes 101 are cut, a cutting stress is generated. By providing at least one groove 601 provided around the light transmitting hole 101 in the first non-display area NA1, the cutting stress can be effectively released, and the cutting stress can be effectively prevented from extending to the display area.
As shown in fig. 9, alternatively, the blocking unit 301 may be located in the groove 601. As described previously, the first distance h1 between the first surface a1 of the barrier unit 301 and the substrate 01 may be greater than or equal to the second distance h2 between the first surface b1 of the light emitting function layer 02 and the substrate 01 in the thickness direction Z of the display panel.
In this way, on the one hand, the blocking unit 301 can better block the organic layer 021, effectively block the water vapor and/or oxygen from invading to the display area AA through the gaps on the organic layer 021 and/or the organic adhesive 04 of the first non-display area NA1, protect the display devices in the display area AA around the light holes 101 from being corroded by the water vapor and/or the oxygen, improve the black spot defect of the display area around the light holes, and improve the display quality of the display panel. On the other hand, the blocking unit 301 is directly disposed in the groove 601, which is convenient for processing and preparation. On the other hand, since the stress at the groove 601 is smaller, the blocking unit 301 is disposed in the groove 601, so that the stress of the first non-display area NA1 is uniform, the situation of excessive stress concentration is avoided, and further the occurrence of cracks in the first non-display area NA1 is effectively avoided.
With continued reference to fig. 9, the encapsulation layer 03 may optionally include at least a first inorganic layer 602 and a second inorganic layer 603, according to some embodiments of the present application. The first inorganic layer 602 is located between the driving device layer 501 and the second inorganic layer 603 in the thickness direction Z of the display panel. In the display area AA, the encapsulation layer 03 may further include an organic encapsulation layer IJP, which may be located between the first inorganic layer 602 and the second inorganic layer 603 in the thickness direction Z of the display panel. Among them, the material of the organic encapsulation layer IJP includes, but is not limited to, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polyimide (PI), polyether sulfone (PES), or the like.
The first inorganic layer 602 and the second inorganic layer 603 may cover the driving device layer 501 and the groove 601 in the first non-display area NA 1. The barrier unit 301 may in particular be located on the side of the second inorganic layer 603 in the recess 601 remote from the substrate 01.
With continued reference to fig. 9, according to some embodiments of the present application, the first non-display area NA1 is optionally provided with a retaining wall Dam disposed around the light-transmitting hole 101. Along the direction that the light-transmitting holes 101 are directed to the display area AA, the grooves 601 may be specifically located between the retaining walls Dam and the light-transmitting holes 101.
Fig. 10 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application. As shown in fig. 10, the first non-display area NA1 may be optionally further provided with a first buffer unit 701 according to some embodiments of the present application. In the thickness direction Z of the display panel, the front projection of the first buffer unit 701 on the substrate 01 at least partially overlaps with the front projection of the barrier unit 301 on the substrate 01, and the first buffer unit 701 may be located at a side of the barrier unit 301 away from the substrate 01.
Therefore, by adding the first buffer unit 701, the influence of the stress generated by the absorption of the organic glue on the barrier unit 301 can be reduced, and the cutting stress generated during cutting is buffered, so that the stress at the position of the barrier unit 301 is not excessively concentrated, and the risk of cracking is reduced.
With continued reference to fig. 10, the first buffer unit 701 may also optionally be located in the recess 601, according to some embodiments of the present application.
Thus, on one hand, the first buffer unit 701 is directly arranged in the groove 601, so that the processing and the preparation are convenient; on the other hand, the first buffer unit 701 can better buffer the cutting stress generated during cutting and the stress generated by the water absorption of the organic glue.
With continued reference to fig. 10, according to some embodiments of the present application, optionally, the first surface d1 of the first buffer unit 701 may be flush with the first surface e1 of the second inorganic layer 603 on both sides of the groove 601. Of course, the first surface d1 of the first buffer unit 701 may be lower than the first surface e1 of the second inorganic layer 603 at both sides of the groove 601 or higher than the first surface e1 of the second inorganic layer 603 at both sides of the groove 601, which is not limited in the embodiment of the present application. The first surface d1 of the first buffer unit 701 may be a surface of the first buffer unit 701 remote from the substrate 01, and the first surface e1 of the second inorganic layer 603 may be a surface of the second inorganic layer 603 remote from the substrate 01.
Fig. 11 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application. As shown in fig. 11, the first non-display area NA1 may be optionally further provided with a second buffer unit 801 according to some embodiments of the present application. In the thickness direction Z of the display panel, the front projection of the second buffer unit 801 on the substrate 01 at least partially overlaps with the front projection of the barrier unit 301 on the substrate 01, and the second buffer unit 801 may be located at a side of the barrier unit 301 close to the substrate 01.
Thus, by adding the second buffer unit 801, the cutting stress generated during cutting and preparing the light holes can be buffered, so that the stress at the position of the blocking unit 301 is not concentrated excessively, and the risk of cracking is further reduced. In addition, the blocking unit 301 above the second buffer unit 801 can better block the organic layer 021, effectively block water vapor and/or oxygen from invading the display area AA through the gaps on the organic layer 021 and/or the organic adhesive 04 of the first non-display area NA1, protect the display devices in the display area AA around the light holes 101 from being corroded by water vapor and/or oxygen, improve the black spot defect of the display area around the light holes, and improve the display quality of the display panel.
With continued reference to fig. 11, in accordance with some embodiments of the present application, optionally, a second cushioning unit 801 may also be located within the groove 601.
Thus, on one hand, the second buffer unit 801 is directly arranged in the groove 601, so that the processing and the preparation are convenient; on the other hand, the second buffer unit 801 can better buffer the cutting stress generated when the light holes are cut.
Optionally, according to some embodiments of the present application, the material of the barrier unit 301 may comprise an inorganic material. Exemplary inorganic materials include, but are not limited to, silicon nitride, silicon oxide, or silicon oxynitride.
Because the compactness of inorganic materials such as silicon nitride, silicon oxide or silicon oxynitride is better, the organic layer 021 and/or the organic glue 04 of the first non-display area NA1 can better prevent water vapor and/or oxygen from invading into the display area AA through the gaps on the organic layer 021 and/or the organic glue 04, so that the display devices in the display area AA around the light holes 101 are protected from being corroded by the water vapor and/or the oxygen, and the black spot defect of the display area around the light holes is improved.
Optionally, according to some embodiments of the present application, the materials of the first buffer unit 701 and the second buffer unit 801 may each include an organic material. Exemplary organic materials include Polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR), or Fiberglass Reinforced Plastic (FRP), etc.
Because the flexibility of the organic material is better, the cutting stress generated when the light holes are prepared by cutting and the stress generated by the water absorption of the organic adhesive can be buffered better.
Based on the display panel 20 provided in the foregoing embodiment, correspondingly, the embodiment of the application further provides a specific implementation manner of the preparation method of the display panel. The manufacturing method of the display panel may be used to manufacture the display panel 20 as provided in the above-described embodiments. In describing the manufacturing method of the display panel, the structure of the display panel 20 will not be described in detail. Please refer to the following examples.
Fig. 12 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present application. As shown in fig. 12, the method of manufacturing the display panel may include the steps of:
s101, providing a substrate;
s102, forming a light-emitting functional layer on one side of a substrate, wherein an organic layer is arranged in the light-emitting functional layer, at least one groove surrounding a light hole is etched on the light-emitting functional layer positioned in a first non-display area, and the at least one groove is used for blocking at least part of the organic layer in the first non-display area along the direction that the light hole points to the display area;
s103, forming a barrier unit in the groove.
According to the preparation method of the display panel, the blocking unit surrounding the light holes is arranged in the first non-display area between the light holes and the display area, the blocking unit can be used for blocking at least part of the organic layers in the first non-display area along the direction of the light holes pointing to the display area, so that water vapor and/or oxygen can be effectively blocked from invading the display area through gaps on the organic layers in the first non-display area, namely, the display devices in the display area around the light holes are protected from being corroded by the water vapor and/or the oxygen, and further, the black spot defect of the display area around the light holes is improved, and the display quality of the display panel is improved. In addition, when the first non-display area is coated with the organic adhesive, the blocking unit and/or the packaging layer can also effectively block water vapor and/or oxygen from invading the display area through the gaps of the organic adhesive on the first non-display area, further protect the display devices in the display area around the light holes from being corroded by the water vapor and/or the oxygen, improve the black spot defect of the display area around the light holes, and improve the display quality of the display panel.
According to some embodiments of the present application, optionally, after forming the barrier unit in the groove at S103, the manufacturing method of the display panel may further include the steps of: the first buffer unit is formed at a side of the barrier unit away from the substrate.
Therefore, by additionally arranging the first buffer unit, the influence of the stress generated by water absorption of the organic glue on the blocking unit is reduced, and the cutting stress generated during cutting is buffered, so that the stress at the position of the blocking unit is not excessively concentrated, and the risk of cracking is reduced.
According to some embodiments of the present application, optionally, before forming the barrier unit in the groove at S103, the method of manufacturing a display panel may further include the steps of: a second buffer unit is formed in the groove. S103 may specifically include: a barrier unit is formed on a side of the second buffer unit in the groove away from the substrate.
On one hand, the second buffer unit is directly arranged in the groove, so that the processing and the preparation are convenient; on the other hand, the second buffer unit can better buffer the cutting stress generated when the light holes are prepared by cutting.
Based on the display panel provided by the embodiment, correspondingly, the application also provides a display device comprising the display panel provided by the application. Referring to fig. 13, fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. Fig. 13 provides a display device 1000 including a display panel 20 provided in any of the embodiments described above. The embodiment of fig. 13 is described with respect to the display device 1000 by taking a mobile phone as an example, and it is to be understood that the display device provided in the embodiment of the present application may be a wearable product, a computer, a television, a vehicle-mounted display device, or other display devices having a display function, which is not particularly limited in this application. The display device provided in the embodiment of the present application has the beneficial effects of the display panel 20 provided in the embodiment of the present application, and the specific description of the display panel 20 in the above embodiments may be referred to specifically, and this embodiment is not repeated here.
It should be understood that the top view structures of the display panels and the cross-sectional structures of the display panels provided in the drawings according to the embodiments of the present application are only examples, and are not intended to limit the present application. In addition, the above embodiments provided herein may be combined with each other without contradiction.
It should be understood that, in the present specification, each embodiment is described in an incremental manner, and the same or similar parts between the embodiments are all referred to each other, and each embodiment is mainly described in a different point from other embodiments. These embodiments are not all details described in detail in accordance with the embodiments described hereinabove, nor are they intended to limit the application to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. This application is to be limited only by the claims and the full scope and equivalents thereof.
Those skilled in the art will appreciate that the above-described embodiments are exemplary and not limiting. The different technical features presented in the different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in view of the drawings, the description, and the claims. In the claims, the term "comprising" does not exclude other structures; the amounts refer to "a" and do not exclude a plurality; the terms "first," "second," and the like, are used for designating a name and not for indicating any particular order. Any reference signs in the claims shall not be construed as limiting the scope. The presence of certain features in different dependent claims does not imply that these features cannot be combined to advantage.
Claims (10)
1. A display panel, wherein a light hole is formed on the display panel, the display panel is provided with a first non-display area surrounding the light hole and a display area, and the first non-display area is positioned between the light hole and the display area;
the first non-display area comprises a substrate, a light-emitting functional layer and a packaging layer which are arranged in a stacked mode, an organic layer is arranged in the light-emitting functional layer, a blocking unit is arranged in the first non-display area and surrounds the light holes, the blocking unit is arranged along the direction that the light holes point to the display area, and the blocking unit is used for blocking at least part of the organic layer.
2. The display panel according to claim 1, wherein the light-emitting functional layer includes at least one organic layer, an organic layer of the light-emitting functional layer farthest from the substrate is a first organic layer, an organic layer of the light-emitting functional layer closest to the substrate is a second organic layer, and a first distance between a first surface of the barrier unit and the substrate is greater than or equal to a second distance between the first surface of the first organic layer and the substrate in a thickness direction of the display panel, the first surface of the barrier unit is a surface of the barrier unit away from the substrate, and the first surface of the first organic layer is a surface of the organic layer away from the substrate;
And along the thickness direction of the display panel, a third distance between the second surface of the barrier unit and the substrate is smaller than or equal to a fourth distance between the second surface of the second organic layer and the substrate, wherein the second surface of the barrier unit is the surface of the barrier unit close to the substrate, and the second surface of the second organic layer is the surface of the organic layer close to the substrate.
3. The display panel of claim 2, wherein the display panel comprises,
the light-emitting functional layer at least comprises a driving device layer and a cathode layer which are stacked along the thickness direction of the display panel, and the organic layer comprises at least one organic film layer in the driving device layer;
the packaging layer at least comprises a first inorganic layer and a second inorganic layer, and the first inorganic layer is positioned between the cathode layer and the second inorganic layer along the thickness direction of the display panel;
a first distance between a first surface of the barrier unit and the substrate is greater than or equal to a fifth distance between a second surface of the first inorganic layer and the substrate along a thickness direction of the display panel, the second surface of the first inorganic layer being a surface of the first inorganic layer close to the substrate;
Preferably, the light emitting functional layer further includes an organic light emitting material layer between the driving device layer and the cathode layer, and the organic layer further includes the organic light emitting material layer.
4. The display panel according to claim 1, wherein the first non-display area is provided with at least one groove provided around the light-transmitting hole, the at least one groove being arranged at intervals along a direction in which the light-transmitting hole points to the display area, the at least one groove blocking the organic layer in the first non-display area into at least two parts;
the blocking unit is positioned in the groove;
preferably, the first non-display area is provided with a retaining wall surrounding the light hole, the groove is located between the retaining wall and the light hole along the direction that the light hole points to the display area.
5. The display panel according to claim 4, wherein the first non-display area is further provided with a first buffer unit, and a front projection of the first buffer unit on the substrate at least partially overlaps a front projection of the barrier unit on the substrate in a thickness direction of the display panel, the first buffer unit being located on a side of the barrier unit away from the substrate;
Preferably, the first buffer unit is located in the groove.
6. The display panel according to claim 5, wherein the first non-display region is further provided with a second buffer unit, and a front projection of the second buffer unit on the substrate at least partially overlaps a front projection of the barrier unit on the substrate in a thickness direction of the display panel, the second buffer unit being located at a side of the barrier unit close to the substrate;
preferably, the second buffer unit is located in the groove.
7. The display panel of claim 1, wherein the material of the barrier unit comprises an inorganic material;
preferably, the inorganic material comprises silicon nitride, silicon oxide or silicon oxynitride.
8. The display panel of claim 6, wherein the materials of the first buffer unit and the second buffer unit each comprise an organic material;
preferably, the organic material comprises polyimide, polycarbonate, polyethersulfone, polyethylene terephthalate, polyethylene naphthalate, polyarylate or glass fiber reinforced plastic.
9. A method of manufacturing a display panel, wherein the display panel comprises the display panel according to any one of claims 1 to 8, the method comprising:
Providing a substrate;
forming a light-emitting functional layer on one side of the substrate, wherein an organic layer is arranged in the light-emitting functional layer, at least one groove surrounding the light hole is etched in the first non-display area, and the at least one groove is used for blocking at least part of the organic layer in the first non-display area along the direction that the light hole points to the display area;
the barrier unit is formed in the recess.
10. A display device comprising the display panel according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310220052.9A CN116456752A (en) | 2023-03-03 | 2023-03-03 | Display panel, preparation method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310220052.9A CN116456752A (en) | 2023-03-03 | 2023-03-03 | Display panel, preparation method thereof and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116456752A true CN116456752A (en) | 2023-07-18 |
Family
ID=87132762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310220052.9A Pending CN116456752A (en) | 2023-03-03 | 2023-03-03 | Display panel, preparation method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116456752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117812937A (en) * | 2023-12-28 | 2024-04-02 | 惠科股份有限公司 | Display panel and display device |
-
2023
- 2023-03-03 CN CN202310220052.9A patent/CN116456752A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117812937A (en) * | 2023-12-28 | 2024-04-02 | 惠科股份有限公司 | Display panel and display device |
| CN117812937B (en) * | 2023-12-28 | 2024-10-11 | 惠科股份有限公司 | Display panel and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109545831B (en) | Display panel and display device | |
| CN110047846B (en) | Display panel, manufacturing method of display panel and intelligent device | |
| KR102062842B1 (en) | Organic light emitting diode display and manufacturing method thereof | |
| CN106887447B (en) | Flexible display device | |
| CN110610970A (en) | Display panel, display device and display panel preparation method | |
| US20240049531A1 (en) | Display panel and display device | |
| JP2018081815A (en) | Display device | |
| CN110112184B (en) | Display panel and electronic device | |
| US8274219B2 (en) | Electro-luminescent display panel including a plurality of island patterns serving as an encapsulation film | |
| US9437659B2 (en) | Organic electroluminescent display device | |
| US9591701B2 (en) | EL display device | |
| US9252396B2 (en) | Organic electro-luminescence display device | |
| KR20150015257A (en) | Flexible display device | |
| US11367757B2 (en) | OLED touch display substrate, manufacturing method thereof and touch display device | |
| CN109801953B (en) | Organic light emitting diode display substrate, and preparation method and device thereof | |
| CN110611042B (en) | Flexible substrate base plate, flexible display panel and preparation method of flexible display panel | |
| US20210135155A1 (en) | Display substrate, display apparatus, and method of fabricating display substrate | |
| US9257678B2 (en) | Organic luminescent display device | |
| US20190386090A1 (en) | Display screen | |
| CN116456752A (en) | Display panel, preparation method thereof and display device | |
| CN111816080A (en) | Display substrate and display device | |
| CN110212107A (en) | A kind of display screen and electronic device | |
| KR20200090595A (en) | Display panel | |
| CN113130618A (en) | OLED display panel | |
| US20240057449A1 (en) | Display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |