Display panel manufacturing method, display panel and display device

Abstract

The present application discloses a method for manufacturing a display panel, a display panel and a display device, and relates to the field of display technology, and comprises the following steps: forming a light-emitting device on a substrate corresponding to a display area; forming a blocking structure at least partially made of a porous material at a position corresponding to a non-display area at an edge of the substrate; inkjet printing an organic encapsulation material containing a solvent and a solute in the blocking structure above the light-emitting device; when the solvent in the organic encapsulation material penetrates from the porous material position of the blocking structure to the outer side of the blocking structure away from the display area, the solidification of the organic encapsulation material is accelerated to form an organic encapsulation layer; an inorganic encapsulation layer is formed above the organic encapsulation layer and the blocking structure to cover the organic encapsulation layer and the blocking structure, thereby obtaining a display panel that has been encapsulated; the present application accelerates the solidification of the organic encapsulation layer and improves the encapsulation speed through the above design.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method for manufacturing a display panel, a display panel, and a display device. Background Art

[0002] OLED (Organic Light-Emitting Diode) refers to an organic semiconductor device that emits light through carrier injection and recombination when organic semiconductor materials and luminescent materials are driven by an electric field. OLED has the characteristic of self-luminescence. The basic structure of OLED is to make a layer of organic luminescent material several tens of nanometers thick on indium tin oxide (ITO) glass as a luminescent layer, and there is a metal electrode with a low work function above the luminescent layer. Because the organic materials of OLED are very sensitive to substances such as water vapor and oxygen, various methods must be used to effectively encapsulate OLED devices to avoid contact between the device and water and oxygen, so as to reduce the aging rate of the device and extend the service life of the device.

[0003] The encapsulation layers prepared in the existing OLED encapsulation process include inorganic encapsulation layers and organic encapsulation layers. The encapsulation effect is achieved by stacking several layers. Generally, the inorganic layer is prepared by vacuum deposition, and the organic encapsulation layer is prepared by inkjet printing. Because there is a gap between the inkjet printing nozzles, the organic encapsulation layer after inkjet printing is generally made by static leveling to completely spread the organic layer material into the device to form a covering encapsulation.

[0004] The blocking structure used to block the flow of ink is a single-ring blocking structure or a combination of multiple-ring blocking structures. When preparing the organic encapsulation layer, the encapsulation speed depends on the curing speed of the mixed ink after inkjet printing. Due to the setting of the blocking structure, the time required for curing after the mixed ink is leveled will be longer. Summary of the invention

[0005] The purpose of the present application is to provide a method for manufacturing a display panel, a display panel, and a display device that accelerate the curing of an organic encapsulation layer and improve the overall encapsulation speed.

[0006] The present application discloses a method for manufacturing a display panel, comprising the steps of:

[0007] forming a light emitting device on the substrate corresponding to the display area;

[0008] forming a blocking structure at least partially made of a porous material at a position of the edge of the substrate corresponding to the non-display area;

[0009] inkjet printing an organic encapsulation material containing a solvent and a solute above the light emitting device and within the blocking structure;

[0010] When the solvent in the organic encapsulation material penetrates from the porous material position of the barrier structure to the outer side of the barrier structure away from the display area to accelerate the solidification of the organic encapsulation material to form an organic encapsulation layer;

[0011] An inorganic encapsulation layer is formed on the organic encapsulation layer and the blocking structure to cover the organic encapsulation layer and the blocking structure, thereby obtaining a display panel with encapsulation completed.

[0012] Optionally, the step of accelerating the solidification of the organic encapsulation material when the solvent in the organic encapsulation material penetrates from the porous material position of the barrier structure to the outer side of the barrier structure away from the display area to form an organic encapsulation layer further includes the following steps:

[0013] The solvent that penetrates into the outer side of the blocking structure away from the display area is heated in a direction to accelerate the evaporation speed of the solvent.

[0014] Optionally, after a circle of blocking structure at least partially made of porous material is formed at a position of the edge of the substrate corresponding to the non-display area, the method comprises the following steps:

[0015] A circle of groove structure is dug on the substrate at the outer side of the blocking structure away from the display area;

[0016] The step of directionally heating the solvent that has penetrated into the outer side of the blocking structure away from the display area to accelerate the evaporation rate of the solvent comprises the steps of:

[0017] The solvent in the organic encapsulation material penetrates into the groove structure from the porous material position of the barrier structure;

[0018] Directed heating is performed on the solvent in the groove structure.

[0019] The present application also discloses a display panel, which includes a substrate, a light-emitting device, a first insulating layer, an organic encapsulation layer and a blocking structure. The light-emitting array is arranged on the substrate to form a display area, and the first insulating layer is arranged above the light-emitting device and covers the display area; the blocking structure is arranged in a circle corresponding to the non-display area of ​​the substrate; wherein the blocking structure is at least partially made of a porous material.

[0020] Optionally, the porous material includes one of carbon nanotube material, graphene nanomaterial, nano-alumina material, polyethylene nanomaterial and metal organic framework material; the blocking structure includes a first blocking part and a second blocking part, the first blocking part is arranged on the substrate, and the second blocking part is arranged on the side of the first blocking part away from the substrate, and the second blocking part is made of porous material; wherein the height of the second blocking part is 30%-50% of the height of the blocking structure.

[0021] Optionally, the blocking structure includes a first blocking portion and a second blocking portion, the first blocking portion is arranged on the substrate, the second blocking portion is arranged on a side of the first blocking portion away from the substrate, the first blocking portion is made of a porous material, wherein the height of the first blocking portion is 30%-50% of the height of the blocking structure.

[0022] Optionally, the blocking structure includes a first blocking portion and a second blocking portion, the first blocking portion is arranged on the substrate, the second blocking portion is arranged on a side of the first blocking portion away from the substrate, and the first blocking portion and the second blocking portion are both made of porous materials.

[0023] Optionally, the display panel further includes a groove structure, which is disposed on the substrate and located on a side of the blocking structure away from the display area.

[0024] Optionally, the blocking structure also includes a third blocking portion, which is arranged on a side of the second blocking portion away from the first blocking portion, and the cross-section of the third blocking portion is a structure that is wide at the top and narrow at the bottom; wherein the width of the first blocking portion is equal to that of the second blocking portion, and the width of the third blocking portion is greater than the width of the first blocking portion and the width of the second blocking portion.

[0025] The present application also discloses a display device, comprising the display panel as described above.

[0026] Compared with the prior art display panel packaging, in which the blocking structure used to block the flow of ink only adopts a single circle of blocking structure or a combination of multiple circles of blocking structures, the display panel manufacturing method of the present application includes forming a blocking structure at least partially made of porous material at the edge of the substrate corresponding to the non-display area; above the light-emitting device, an organic packaging material containing a solvent and a solute is inkjet printed in the blocking structure; in this way, after the organic packaging material is inkjet printed on the edge of the display area, the mixed ink of the solvent and the solute is leveled, and when encountering the blocking structure, the solvent flows out of the blocking structure made of porous material under the action of liquid pressure and penetrates to the outside of the blocking structure away from the display area. At this time, part of the solvent in the mixed ink has been filtered through the blocking structure, and the curing speed of the organic packaging material can be greatly improved. It also makes it possible to subsequently form an inorganic packaging layer above the organic packaging layer and the blocking structure to cover the organic packaging layer and the blocking structure, and the speed of completing the overall packaging is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0028] Figure 1 It is a schematic diagram of the steps of the method for manufacturing a display panel provided in the present application;

[0029] Figure 2 yes Figure 1 A schematic flow chart of further steps after step S5;

[0030] Figure 3 yes Figure 1 A schematic flow chart of further steps after step S3;

[0031] Figure 4 yes Figure 2 Schematic diagram of the further steps after step S7;

[0032] Figure 5 is a schematic block diagram of a display device provided in the first embodiment of the present application;

[0033] Figure 6 is a schematic cross-sectional structural diagram of a display panel provided in the first embodiment of the present application;

[0034] Figure 7 is a schematic cross-sectional structural diagram of a blocking structure provided in the first embodiment of the present application;

[0035] Figure 8 is a schematic flow chart of the steps of a method for manufacturing a blocking structure provided in the first embodiment of the present application;

[0036] Fig. 9 is a schematic diagram of a barrier structure filtering an inkjet-printed organic encapsulation material provided in the first embodiment of the present application;

[0037] Fig.10 A schematic cross-sectional view of a blocking structure provided in a second embodiment of the present application;

[0038] Fig.11 is a schematic diagram of a barrier structure filtering an inkjet-printed organic encapsulation material provided in a second embodiment of the present application;

[0039] Fig.12 It is a schematic flow chart of the steps of the method for manufacturing the blocking structure provided in the second embodiment of the present application.

[0040] Among them, 10, display device; 100, display panel; 110, substrate; 120, light-emitting device; 130, first insulating layer; 140, organic encapsulation layer; 150, blocking structure; 151, first blocking part; 152, second blocking part; 153, third blocking part; 154, protrusion; 155, first side; 156, second side; 157, third side; 158, fourth side; 160, inorganic encapsulation layer; 170, display area; 180, non-display area; 190, groove structure. DETAILED DESCRIPTION

[0041] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative, but the present application can be implemented in many alternative forms and should not be construed as being limited to only the embodiments described herein.

[0042] In the description of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; "multiple" means two or more. In addition, the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. indicating orientation or positional relationships are described based on the orientation or relative positional relationships shown in the accompanying drawings, and are only for the convenience of describing the simplified description of the present application, rather than indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0043] 1 is a schematic diagram of the steps of a method for manufacturing a display panel provided in the present application. Figure 1 As shown, the present application discloses a method for manufacturing a display panel, comprising the steps of:

[0044] S1: forming a light-emitting device on a substrate corresponding to a display area;

[0045] S2: forming a blocking structure at least partially made of a porous material at a position on the edge of the substrate corresponding to the non-display area;

[0046] S3: inkjet printing an organic encapsulation material containing a solvent and a solute in the blocking structure above the light-emitting device;

[0047] S4: when the solvent in the organic encapsulation material penetrates from the porous material position of the barrier structure to the outer side of the barrier structure away from the display area to accelerate the solidification of the organic encapsulation material to form an organic encapsulation layer;

[0048] S5: forming an inorganic encapsulation layer on the organic encapsulation layer and the blocking structure to cover the organic encapsulation layer and the blocking structure, thereby obtaining a display panel after encapsulation.

[0049] Compared with the prior art display panel 100 packaging, in which the blocking structure 150 used to block the flow of ink only adopts a single circle of blocking structure 150 or a combination of multiple circles of blocking structure 150, the manufacturing method of the display panel 100 of the present application includes forming a blocking structure 150 made of at least part of a porous material at a position corresponding to the non-display area 180 at the edge of the substrate 110; above the light-emitting device 120, an organic packaging material containing a solvent and a solute is inkjet printed in the blocking structure 150; after the organic packaging material is inkjet printed at the edge of the display area, the mixed ink of the solvent and the solute is When the solvent encounters the blocking structure 150, it flows out of the blocking structure 150 made of porous material under the action of liquid pressure, and penetrates to the outer side of the blocking structure 150 away from the display area 170. At this time, part of the solvent in the mixed ink has been filtered through the blocking structure 150. At this time, the curing speed of the organic encapsulation material can be greatly improved, and the organic encapsulation layer 140 is quickly cured to form the organic encapsulation layer 140. In addition, an inorganic encapsulation layer 160 is subsequently formed above the organic encapsulation layer 140 and the blocking structure 150 to cover the organic encapsulation layer 140 and the blocking structure 150, and the speed of completing the overall encapsulation is also improved.

[0050] The organic encapsulation layer 140 easily absorbs moisture, which can easily corrode the internal light-emitting device 120 and affect the performance of the light-emitting device 120. Therefore, a first insulating layer 130 can also be deposited above the light-emitting device 120 to form an isolation between the light-emitting device 120 and the organic encapsulation layer 140 to prevent moisture from corroding the light-emitting device 120.

[0051] Figure 2 yes Figure 1 A schematic diagram of the further steps after step S4 in FIG. Figure 2 As shown, the step of accelerating the solidification of the organic encapsulation material to form an organic encapsulation layer when the solvent in the organic encapsulation material penetrates from the porous material position of the barrier structure to the outer side of the barrier structure away from the display area to accelerate the solidification of the organic encapsulation material to form an organic encapsulation layer further includes the steps of:

[0052] S6: Directedly heating the solvent that has penetrated into the outer side of the blocking structure away from the display area to accelerate the evaporation rate of the solvent.

[0053] That is, when the organic encapsulation material is inkjet printed, the solvent in the organic encapsulation material can penetrate from the porous material position of the blocking structure 150 to the outside away from the display area 170. At this time, the outer area can be simultaneously heated in a direction so that the solvent in the outer area can also be evaporated, so that the entire substrate 110 remains dry and the presence of water vapor is reduced.

[0054] If there is no storage structure in the non-display area, the solvent may evaporate too slowly and overflow, which is troublesome to handle. Therefore, a groove structure 190 can be dug on the substrate 110 and located on the side of the blocking structure 150 away from the display area 170 to store the solvent that penetrates from the blocking structure 150.

[0055] Therefore, after forming a circle of blocking structures at least partially made of porous material at the edge of the substrate 110 corresponding to the non-display area, the method includes the following steps:

[0056] S7: digging a circle of groove structure on the substrate, located outside the blocking structure away from the display area;

[0057] The step of directionally heating the solvent that has penetrated into the outer side of the blocking structure away from the display area to accelerate the evaporation rate of the solvent includes the steps of:

[0058] S61: The solvent in the organic encapsulation material penetrates into the groove structure from the porous material position of the barrier structure;

[0059] S62: Directedly heating the solvent in the groove structure.

[0060] The directional heating is carried out when the organic encapsulation material starts to be inkjet printed. After the solvent flows out, it enters the groove structure 190 on the substrate 110. Since the groove structure 190 is located far away from the display area 170, the location can be heated in a directional manner to accelerate the evaporation of the solvent by increasing the heating. Of course, it is also possible to increase the gas flow rate in the non-display area 180 to accelerate the evaporation of the solvent, which is not limited here.

[0061] In order to further ensure the sealing of the package, after the inorganic packaging layer 160 is completed, an inorganic insulating layer can be added above the inorganic packaging layer 160, and the inorganic insulating layer can be deposited corresponding to the groove structure 190. The groove structure 190 is embedded with the inorganic insulating layer, so that if there is water vapor outside the non-display area, the path for the water vapor to enter the display area 170 is increased, thereby avoiding the invasion of water vapor and ensuring the display effect of the display panel 10.

[0062] The portion of the blocking structure made of porous material may be arranged at different positions of the entire blocking structure. The present application will be described in detail below from a structural perspective with reference to the accompanying drawings and optional embodiments.

[0063] First embodiment:

[0064] Figure 5 is a block diagram of a display device provided in the first embodiment of the present application. Figure 6 is a schematic diagram of a cross-sectional structure of a display panel provided in the first embodiment of the present application, such as Figure 5-6 As shown, the present application also discloses a display device 10, including a display panel 100, wherein the display panel 100 includes a substrate 110, a light-emitting device 120, a first insulating layer 130, an organic encapsulation layer 140 and a blocking structure 150, wherein the light-emitting array is arranged on the substrate 110 to form a display area 170, and the first insulating layer 130 is arranged above the light-emitting device 120 and covers the display area 170; the blocking structure 150 is arranged around a non-display area 180 corresponding to the substrate 110.

[0065] The porous material includes one of C nanotube material, graphene nanomaterial, nanoalumina material, polyethylene nanomaterial and metal organic framework material. Preferably, the porous material is nanoalumina material or metal organic framework material, the pore size of these two materials is adjustable, and can be adjusted accordingly according to the pore size of the solute in the mixed ink to form a porous barrier, and the strength is relatively large, and the barrier stress of the barrier structure 150 can be maintained.

[0066] The blocking structure 150 made of porous material can filter the solvent in the mixed ink, thereby accelerating the encapsulation of the organic encapsulation layer 140. The first insulating layer 130 is arranged between the light-emitting device 120 and the organic encapsulation layer 140 to prevent the erosion of the light-emitting device 120 caused by moisture absorbed by the organic encapsulation layer 140, thereby better encapsulating the light-emitting device 120.

[0067] In general inkjet printing, the solvent molecules of the mixed ink are generally ethanol, which is smaller than the solute molecules. The molecular size of ethanol is about 0.76nm, so the pore size of the porous structure of the second blocking portion 152 can be set to 1-1.5nm. Of course, other mixed inks can also be used, and the pore size of the corresponding porous structure can be set to only allow the solvent molecules to pass through.

[0068] The blocking structure 150 may be provided in a circle, so that the solvent of the organic encapsulation material can reach the non-display area for evaporation after being filtered through a circle of the blocking structure 150, thereby accelerating the formation of the organic encapsulation layer 140 and keeping the non-display area clean and tidy, which is beneficial for the subsequent encapsulation of other encapsulation layers. Of course, the number of circles of the blocking structure 150 can also be designed according to the actual encapsulation requirements of the display panel 100, which is not limited here.

[0069] in, Figure 7 is a schematic cross-sectional view of the blocking structure provided in the first embodiment of the present application. Figure 7 As shown, the blocking structure 150 includes a first blocking portion 151 and a second blocking portion 152. The first blocking portion 151 is disposed on the substrate 110, and the second blocking portion 152 is disposed on a side of the first blocking portion 151 away from the substrate 110. The second blocking portion 152 is made of a porous material, that is, the second blocking portion 152 located on the upper part of the blocking structure 150 is a porous structure. The direction upward away from the substrate 110 is the direction of the height of the blocking structure 150, and the height of the second blocking portion 152 is 30%-50% of the height of the first blocking portion 151 and the blocking structure 150.

[0070] The blocking structure 150 is usually set to block the overflow of organic packaging materials during inkjet printing. Therefore, under normal circumstances, the height of the blocking structure 150 will be higher than the height of the organic packaging layer 140 printed by inkjet. The porous structure is set at the upper part of the blocking structure 150. Since the solute in the mixed ink is generally heavier than the solvent, the solute will sink first, and the solvent will account for the majority in the upper part. At this time, when the porous structure is located at the top, the entire filtration process can be carried out continuously, and the solvent in the organic packaging material can be continuously infiltrated through the porous structure to reach the groove structure 190, so that the solvent in the organic packaging material is gradually reduced, thereby accelerating the precipitation and solidification of the solute. At the same time, the solvent in the groove structure 190 is evaporated by directional heating or increasing the gas flow rate.

[0071] Figure 8 FIG. 1 is a schematic flow chart of the steps of the method for manufacturing a blocking structure provided in the first embodiment of the present application. Figure 8 As shown, the method for manufacturing the blocking structure 150 comprises the steps of:

[0072] S31: depositing a circle of first barrier material on the substrate to form the first barrier portion;

[0073] S32: depositing a circle of porous material on the first blocking portion to form the second blocking portion.

[0074] like Figure 7 As shown, the display panel 100 is cut into a cross section of the display panel 100 in the arrangement direction of the light emitting device 120, and the arrow direction in the figure is the direction of the width of the blocking structure. The blocking structure 150 also includes a third blocking portion 153, and the third blocking portion 153 is arranged on the side of the second blocking portion 152 away from the first blocking portion 151. The cross section of the third blocking portion 153 is a structure that is wide at the top and narrow at the bottom, wherein the width of the first blocking portion 151 is equal to that of the second blocking portion 152, and the width of the third blocking portion 153 is greater than the width of the first blocking portion 151 and the width of the second blocking portion 152, that is, the third blocking portion 153 is combined with the first blocking portion 151 and the second blocking portion to form a T-shaped blocking structure 150. The T-shaped blocking structure 150 can be formed by etching the T-shaped structure by gas etching after the entire blocking structure 150 is deposited and formed. Specifically, different shapes can be formed by adjusting the ratio of si / O / N in the upper and lower layers to adjust the etching rate of the etching gas. The first blocking portion 151 and the third blocking portion 153 may be made of inorganic silicon nitride material or organic insulating PFA material with a certain strength to provide a certain supporting strength.

[0075] Fig. 9FIG. 1 is a schematic diagram of a barrier structure provided in the first embodiment of the present application for filtering an organic encapsulating material printed by inkjet printing. The arrows in the figure indicate the flow direction of the solvent in the organic encapsulating material. Fig. 9 As shown, combined Figure 7 It can be seen that the cross-sectional structure of the third blocking portion 153 includes a first side 155, a second side 156, a third side 157 and a fourth side 158 which are connected to each other. The first side 155 is arranged opposite to the second side 156, and the third side 157 and the fourth side 158 are arranged opposite to each other. The width of the first side 155 is greater than the width of the second side 156. When the mixed ink of the organic encapsulation material printed by inkjet printing passes over the second blocking portion 152, the third blocking portion 153 can also be used to block it to prevent overflow. The third side 157 and the fourth side 158 are both arc-shaped sides. The cross-section of the third blocking portion 153 is a semicircular structure, and protrusions 154 are formed on both sides. The arc-shaped sides of the protrusions 154 close to the display area 170 can guide the mixed ink to the bottom of the blocking structure 150, so that the solute sinks, and the solvent penetrates through the porous structure, thereby weakening the "coffee ring effect" of the solute during solidification, so that the solute forms a uniform film.

[0076] Moreover, the upper surface area of ​​the third barrier 153 formed in this way is relatively large. After the encapsulation of the organic encapsulation layer 140 is completed, when the inorganic encapsulation layer 160 is encapsulated, the inorganic encapsulation layer 160 can be better leveled and the contact area with the inorganic encapsulation layer 160 is increased, so as to achieve the effect of dispersing stress and strengthen the encapsulation effect of the inorganic encapsulation layer 160. Of course, it is also possible to set the cross section of the third barrier 153 to be rectangular or inverted trapezoidal.

[0077] The width of the cross section of the first blocking portion 151 and the second blocking portion 152 is 20-50 um, and the width of the cross section of the third blocking portion 153 is 30-60 um.

[0078] Second embodiment:

[0079] Fig.10 A schematic cross-sectional view of a blocking structure provided in the second embodiment of the present application, Fig.11 is a schematic diagram of a barrier structure filtering an inkjet-printed organic encapsulation material provided in the second embodiment of the present application, combined with Figure 10-11 As the second embodiment of the present application, this embodiment is different from the first embodiment in that the first blocking portion 151 is made of a porous material, that is, the porous structure portion of the blocking structure 150 is located near the lower part of the substrate 110, and the mixed ink is first deposited and then filtered. Since the filtering effect is mainly based on the liquid pressure generated on the mixed ink, the pressure of the mixed ink located near the display area 170 is the largest, and the pressure squeezes the solvent there so that it is easiest to pass through.

[0080] Fig.12 FIG. 1 is a schematic flow chart of the steps of the method for manufacturing a blocking structure provided in the second embodiment of the present application. Fig.12 As shown, in this embodiment, the method for manufacturing the blocking structure 150 includes the steps of:

[0081] S31: depositing a circle of porous material on the substrate to form a first blocking portion;

[0082] S32: depositing a circle of first barrier material on the first barrier to form a second barrier;

[0083] Wherein, the height of the first blocking portion is 30%-50% of the height of the blocking structure.

[0084] Of course, the first barrier 151 and the second barrier 152 may be made of porous materials, so that the height of the porous structure accounts for 60% to 70% of the entire barrier 150, so that the positions in the barrier 150 that almost correspond to the organic encapsulation area of ​​inkjet printing have a filtering effect, which can filter the solvent more quickly and further accelerate the curing speed of the organic encapsulation layer 140. When the first barrier 151 and the second barrier 152 are both made of porous materials, the first barrier 151 and the second barrier 152 are directly deposited on the substrate 110 using porous materials, and then other materials are deposited to form the third barrier 153.

[0085] It should be noted that the limitations on the various steps involved in this solution, without affecting the implementation of the specific solution, are not deemed to limit the order of the steps. The steps written in front can be executed first, or later, or even simultaneously. As long as this solution can be implemented, it should be deemed to fall within the scope of protection of this application.

[0086] It should be noted that the inventive concept of the present application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effects will be enhanced.

[0087] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A method for manufacturing a display panel, characterized in that: Includes steps: forming a light emitting device on the substrate corresponding to the display area; forming a blocking structure at least partially made of a porous material at a position of the edge of the substrate corresponding to the non-display area; inkjet printing an organic encapsulation material containing a solvent and a solute above the light emitting device and within the blocking structure; When the solvent in the organic encapsulation material penetrates from the porous material position of the barrier structure to the outer side of the barrier structure away from the display area, the solidification of the organic encapsulation material is accelerated to form an organic encapsulation layer; forming an inorganic encapsulation layer on the organic encapsulation layer and the blocking structure to cover the organic encapsulation layer and the blocking structure to obtain a display panel with encapsulation completed; The step of accelerating the solidification of the organic encapsulation material to form an organic encapsulation layer by infiltrating the solvent in the organic encapsulation material from the porous material position of the barrier structure to the outer side of the barrier structure away from the display area to accelerate the solidification of the organic encapsulation material to form an organic encapsulation layer further includes the following steps: Directively heating the solvent that has penetrated into the outer side of the barrier structure away from the display area to accelerate the evaporation rate of the solvent; Wherein, the porous material includes one of carbon nanotube material, graphene nanomaterial, nano-alumina material, polyethylene nanomaterial and metal organic framework material.

2. The method for manufacturing a display panel according to claim 1, wherein: The display panel comprises a substrate, a light-emitting device, an organic encapsulation layer and a blocking structure, wherein the light-emitting device is arranged on the substrate to form a display area, the organic encapsulation layer is arranged above the light-emitting device and covers the display area; the blocking structure is arranged around the non-display area of ​​the substrate; The blocking structure comprises a first blocking portion and a second blocking portion, wherein the first blocking portion is disposed on the substrate, and the second blocking portion is disposed on a side of the first blocking portion away from the substrate; The step of forming a blocking structure at least partially made of a porous material at a position on the edge of the substrate corresponding to the non-display area comprises the following steps: depositing a circle of porous material on the substrate to form a first barrier; depositing a circle of first barrier material on the first barrier to form a second barrier; or The step of forming a blocking structure at least partially made of a porous material at a position on the edge of the substrate corresponding to the non-display area comprises the following steps: Depositing a circle of first barrier material on the substrate to form the first barrier; depositing a circle of porous material on the first barrier to form the second barrier; or The step of forming a blocking structure at least partially made of a porous material at a position on the edge of the substrate corresponding to the non-display area comprises the following steps: A circle of porous material is deposited at a position of the edge of the substrate corresponding to the non-display area to form the first blocking portion and the second blocking portion.

3. The method for manufacturing a display panel according to claim 2, wherein: After forming a blocking structure at least partially made of porous material at a position on the edge of the substrate corresponding to the non-display area, the method comprises the following steps: A groove structure is dug on the substrate at an outer side of the blocking structure away from the display area; The step of directionally heating the solvent that has penetrated into the outer side of the blocking structure away from the display area to accelerate the evaporation rate of the solvent includes the steps of: The solvent in the organic encapsulation material penetrates into the groove structure from the porous material position of the barrier structure; Directed heating is performed on the solvent in the groove structure.

4. A display panel, prepared by the method for manufacturing a display panel according to any one of claims 1 to 3, characterized in that: The display panel comprises a substrate, a light-emitting device, an organic encapsulation layer and a blocking structure, wherein the light-emitting device is arranged on the substrate to form a display area, the organic encapsulation layer is arranged above the light-emitting device and covers the display area; the blocking structure is arranged around the non-display area of ​​the substrate; Wherein, the blocking structure is at least partially made of a porous material; the porous material includes one of a carbon nanotube material, a graphene nanomaterial, a nano-alumina material, a polyethylene nanomaterial and a metal organic framework material.

5. The display panel according to claim 4, wherein: The blocking structure includes a first blocking part and a second blocking part, wherein the first blocking part is arranged on the substrate, and the second blocking part is arranged on a side of the first blocking part away from the substrate, and the second blocking part is made of a porous material; wherein the height of the second blocking part is 30%-50% of the height of the blocking structure.

6. The display panel according to claim 4, wherein: The blocking structure includes a first blocking part and a second blocking part, the first blocking part is arranged on the substrate, the second blocking part is arranged on a side of the first blocking part away from the substrate, the first blocking part is made of a porous material, wherein the height of the first blocking part is 30%-50% of the height of the blocking structure.

7. The display panel according to claim 4, wherein: The blocking structure includes a first blocking portion and a second blocking portion, wherein the first blocking portion is arranged on the substrate, and the second blocking portion is arranged on a side of the first blocking portion away from the substrate, and both the first blocking portion and the second blocking portion are made of porous materials.

8. The display panel according to claim 4, wherein: The display panel further includes a groove structure, which is disposed on the substrate and located at a side of the blocking structure away from the display area.

9. The display panel according to claim 5, 6 or 7, characterized in that: The blocking structure further includes a third blocking portion, the third blocking portion is arranged on a side of the second blocking portion away from the first blocking portion, and the cross section of the third blocking portion is a structure of being wide at the top and narrow at the bottom; The width of the first blocking portion is equal to the width of the second blocking portion, and the width of the third blocking portion is greater than the width of the first blocking portion and the width of the second blocking portion.

10. A display device, characterized in that: Comprising a display panel as described in any one of claims 4-9.

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