Method for manufacturing display panel, display panel and display device
Patent Information
- Application Number
- CN202610757520.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-28
- Publication Date
- 2026-09-11
AI Technical Summary
[0003]在可拉伸的显示面板中，当显示面板受到拉伸后，常用方式为固定发光层，拉伸像素间非显示区，这样会导致分辨率降低，而如采用拉伸发光层，则发光层的破裂风险较高
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Figure CN122742601A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and in particular to a method for manufacturing a display panel and the display panel and display device thereof. Background Technology
[0002] Organic light-emitting diodes (OLEDs) possess advantages such as surface light source, cold light, energy saving, fast response, flexibility, ultra-thinness, and low cost, and their mass production technology is becoming increasingly mature. Typically, the OLED light-emitting layer consists of light-emitting layers with three RGB colors, and ink droplets are usually sprayed onto designated locations on the control substrate for direct patterning.
[0003] In stretchable display panels, when the display panel is stretched, the common approach is to fix the light-emitting layer and stretch the non-display areas between pixels. This will lead to a reduction in resolution. If the light-emitting layer is stretched, the risk of the light-emitting layer breaking is higher. Summary of the Invention
[0004] The purpose of this application is to provide a method for manufacturing a display panel and the display panel and display device thereof, which improves the stretchability of the light-emitting layer, so that the light-emitting layer can be stretched simultaneously when the display panel is stretched, without reducing the resolution of the stretched display panel, while reducing the risk of light-emitting layer breakage and improving the display effect of the display panel.
[0005] This application discloses a method for manufacturing a display panel. The method for manufacturing a display panel includes the following steps: Provide a control board; A barrier layer is formed on the control substrate, the barrier layer defining a plurality of openings that penetrate the barrier layer to expose the control substrate below, and the openings correspond one-to-one with the pixel areas of the display panel; A luminescent solution is disposed within the opening, the luminescent solution comprising a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; a confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; the luminescent solution is initiated to polymerize to form a luminescent layer within the opening; The confinement solution and the barrier layer are removed, and a composite control layer is formed on the light-emitting layer to form the display panel.
[0006] Optionally, the step of providing a control substrate includes, prior to: Provide a flexible substrate; An anode control layer and an anode layer are sequentially formed on the elastic substrate, wherein the anode layer includes a plurality of anodes; A stretchable cavity composite layer is formed on the anode to form a control substrate.
[0007] Optionally, the step of removing the confinement solution and the barrier layer, and forming a composite control layer on the light-emitting layer to form the display panel includes: Remove the confining solution and the barrier layer; A stretchable electronic composite layer is formed on the light-emitting layer; A cathode layer is formed on the stretchable electronic composite layer to form the display panel.
[0008] Optionally, the luminescent solution includes a red luminescent solution, a green luminescent solution, and a blue luminescent solution; the red luminescent solution includes a copolymer elastomer solution, a red luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; the green luminescent solution includes a copolymer elastomer solution, a green luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; and the blue luminescent solution includes a copolymer elastomer solution, a blue luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. The crosslinking agent concentration of the blue luminescent solution is greater than that of the red luminescent solution, and the crosslinking agent concentration of the blue luminescent solution is greater than that of the green luminescent solution.
[0009] Optionally, the step of providing a luminescent solution within the opening, the luminescent solution comprising a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; providing a confinement solution on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; and initiating polymerization of the luminescent solution to form a luminescent layer within the opening includes: A red luminescent solution, a green luminescent solution, and a blue luminescent solution are sequentially added into different openings. The red luminescent solution comprises a copolymer elastomer, a red luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. The blue luminescent solution comprises a copolymer elastomer, a blue luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. The green luminescent solution comprises a copolymer elastomer, a green luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; The luminescent solution is polymerized to form a luminescent layer within the opening.
[0010] Optionally, the step of providing a luminescent solution within the opening, the luminescent solution comprising a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; providing a confinement solution on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; and initiating polymerization of the luminescent solution to form a luminescent layer within the opening includes: A first luminescent solution is added into the first opening. The first luminescent solution includes a copolymer elastomer, a first luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, and the confinement solution covers the barrier layer and the first luminescent solution. Under first preset conditions, the first luminescent solution is polymerized to form a first luminescent layer in the first opening. A second luminescent solution is added into the second opening. The second luminescent solution includes a copolymer elastomer, a second luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, and the confinement solution covers the barrier layer and the second luminescent solution. Under a second preset condition, the second luminescent solution is polymerized to form a second luminescent layer in the second opening. A third luminescent solution is added into the third opening. The third luminescent solution includes a copolymer elastomer, a third luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is placed on the barrier layer, and the confinement solution covers the barrier layer and the third luminescent solution. Under a third preset condition, the third luminescent solution is polymerized to form a third luminescent layer in the third opening. In this process, one of the first luminescent solution, the second luminescent solution, and the third luminescent solution is a blue luminescent solution, and the other two are a red luminescent solution and a green luminescent solution, respectively. Under the same initiation energy, the initiation duration for initiating polymerization of the blue luminescent solution is greater than the initiation duration for initiating polymerization of the red luminescent solution and the initiation duration for initiating polymerization of the green luminescent solution; or under the same initiation duration, the initiation energy for initiating polymerization of the blue luminescent solution is greater than the initiation energy for initiating polymerization of the red luminescent solution and the initiation energy for initiating polymerization of the green luminescent solution.
[0011] Optionally, the confined solution comprises anhydrous paraffin oil.
[0012] This application also discloses a display panel, which includes a control substrate, a light-emitting layer, and a composite control layer. The light-emitting layer is disposed on the control substrate, and the composite control layer is disposed on the light-emitting layer. The control substrate and the composite control layer control the light-emitting layer to emit light.
[0013] Optionally, the control substrate includes an elastic substrate, an anode control layer, an anode layer, and a stretchable hole composite layer, wherein the anode control layer and the anode layer are sequentially disposed on the elastic substrate, and the stretchable hole composite layer is disposed on the anode; The composite control layer includes a stretchable electron composite layer and a cathode layer, the light-emitting layer is disposed on the stretchable hole composite layer, and the stretchable electron composite layer and the cathode layer are disposed sequentially on the light-emitting layer; The stretchable vacuolated composite layer has a vacuolated recess and a vacuolated protrusion on the side near the light-emitting layer.
[0014] This application also discloses a display device, which includes a driving circuit and a display panel, wherein the driving circuit is connected to the display panel.
[0015] Compared to existing display panels where the light-emitting layer is fixed and cannot be stretched, this application avoids the resolution reduction problem caused by the increased gap between adjacent pixel areas after stretching, where the pixel area remains unchanged after stretching. Furthermore, compared to existing displays where the light-emitting layer can be stretched, this application forms a barrier layer on the control substrate, defining multiple openings that penetrate the barrier layer to expose the underlying control substrate. Each opening corresponds to a pixel area of the display panel. A light-emitting solution, comprising a copolymer elastomer, a light-emitting monomer, an oligomer, a crosslinking agent, and a thermal initiator, is placed within the openings. A confinement solution is placed on the barrier layer, covering both the barrier layer and the light-emitting solution. The light-emitting solution is then polymerized to form the light-emitting layer within the openings. This improves the stretchability of the light-emitting layer, reduces the risk of breakage, and enhances the display effect of the display panel. Attached Figure Description
[0016] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic flowchart of a method for manufacturing a display panel according to the first embodiment of this application; Figure 2 This is a process diagram illustrating a method for manufacturing a display panel according to the first embodiment of this application; Figure 3a This is a partial flowchart illustrating a method for fabricating a control substrate according to the first embodiment of this application; Figure 3b This is a schematic diagram of the remaining part of a method for preparing a control substrate according to the first embodiment of this application; Figure 4a This is a partial schematic diagram of the manufacturing process of a display panel according to a second embodiment of this application; Figure 4bThis is a schematic diagram of the remaining part of the process of a method for manufacturing a display panel according to a second embodiment of this application; Figure 5 This is a schematic diagram of a display panel according to an embodiment of this application; Figure 6 This is a schematic diagram of a light-emitting layer according to an embodiment of this application; Figure 7 This is a schematic diagram of a display device according to an embodiment of this application.
[0017] Among them, 10 is a display device; 20 is a driving circuit; 30 is a display panel; 100 is a control substrate; 110 is an elastic substrate; 120 is an anode control layer; 130 is an anode layer; 140 is an anode; 150 is a stretchable hole composite layer; 151 is a hole protrusion; 152 is a hole depression; 200 is a light-emitting layer; 300 is a composite control layer; 310 is a stretchable electronic composite layer; 320 is a cathode layer; 330 is an encapsulation layer; 400 is a barrier layer; 410 is an opening; 411 is a first opening; 412 is a second opening; 413 is a third opening; 500 is a light-emitting solution; 511 is a red light-emitting solution; 512 is a green light-emitting solution; 513 is a blue light-emitting solution; 514 is a first light-emitting layer; 515 is a second light-emitting layer; 516 is a third light-emitting layer; and 520 is a confinement solution. Detailed Implementation
[0018] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.
[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.
[0020] In addition, terms such as “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” that indicate orientation or positional relationship are based on the orientation or relative positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0021] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0022] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.
[0023] Example 1: Figure 1 This is a schematic flowchart illustrating a method for manufacturing a display panel according to the first embodiment of this application. Figure 2 This is a process diagram illustrating a method for manufacturing a display panel according to the first embodiment of this application, combined with... Figure 1 and Figure 2 As shown, this application discloses a method for manufacturing a display panel. The method for manufacturing a display panel 30 includes the following steps: S1: Provide a control board; S2: A barrier layer is formed on the control substrate, the barrier layer defining a plurality of openings, the openings penetrating the barrier layer to expose the control substrate below, and the openings corresponding one-to-one with the pixel areas of the display panel; For example, the barrier layer 400 described in this application can be made of photoresist material. For instance, a layer of photoresist is first coated on the control substrate 100, and then a patterning process is performed to leave the barrier layer 400 between two pixel areas of the display panel 30, so as to form an opening 410 in the corresponding pixel area of the display panel 30.
[0024] S3: A luminescent solution is disposed within the opening, the luminescent solution comprising a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; a confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; the luminescent solution is initiated to polymerize to form a luminescent layer within the opening; For example, the copolymer elastomer is a SEBS (styrene-ethylene-butene-styrene triblock copolymer) elastomer.
[0025] For example, the luminescent solution 500 is uniformly mixed with copolymer elastomer, luminescent monomer, oligomer, crosslinking agent and thermal initiator, and then ultrasonically degassed for a preset time, for example, 5 minutes, to eliminate air bubbles generated during mixing in the luminescent solution 500, thereby improving the film quality of the luminescent layer 200.
[0026] S4: Remove the confinement solution and the barrier layer, and form a composite control layer on the light-emitting layer to form the display panel.
[0027] It is understood that the confined solution 520 satisfies the requirements of immiscibility with chlorobenzene, chemical inertness, moderate viscosity, and no fluorescence interference, such as anhydrous mineral oil, n-dodecanediol, and perfluoroalkane solvents.
[0028] Interfacial confined polymerization is a technique that precisely controls the growth dimensions, structure, and properties of polymers by conducting polymerization reactions within a physical space. It achieves fine-grained control over the polymerization kinetics, product morphology, and properties by confining the reaction region to an extremely thin confined area.
[0029] The confinement solution 520 described in this application comprises anhydrous paraffin oil. The anhydrous paraffin oil is immiscible with the chlorophenyl monomer solution, which can quickly form a clear and stable solid-liquid interface, constructing a closed confinement region and precisely binding the luminescent monomer to polymerize at the solid-liquid interface. As a chemically inert reagent, the anhydrous paraffin oil does not react chemically with the luminescent monomer, crosslinking agent, or initiator, does not affect the polymerization process, and will not quench luminescence or introduce impurities. The anhydrous paraffin oil has a moderate viscosity, which will not dissipate the underlying luminescent solution 500 during the covering process, and is easy to remove with subsequent rinsing, leaving no residue.
[0030] It is understandable that the height of the luminescent solution 500 added in the opening 410 is less than the thickness of the retaining wall layer 400, so as to avoid mixing of the luminescent solutions 500 in different openings 410.
[0031] The light-emitting layer 200 is prepared by using an interface confined polymerization reaction. In simple terms, an interface region is first formed by a confined solution 520, a control substrate 100, and a barrier layer 400. An ultra-thin ordered layer is spontaneously formed in the interface region between the solid and liquid states of the copolymer elastomer solution. Then, the light-emitting monomer and crosslinking agent are confined in the interface region, so that they only undergo directional polymerization at the interface, thereby generating a uniform, dense light-emitting layer 200 that is strongly bonded to the control substrate 100 in situ, without the need for vacuum evaporation.
[0032] This application controls the substrate 100, the barrier layer 400, and the confinement solution 520 to form an interface region within the opening 410. That is, between the confinement solution 520 and the control substrate 100, when the luminescent solution 500 contacts the surface of the control substrate 100, the copolymer elastomer macromolecular chains are rapidly adsorbed, spread, and form a highly oriented SEBS interface substrate layer in the interface region between the confinement solution 520 and the control substrate 100. This SEBS interface substrate layer has self-assembly, self-stabilization, and low surface energy characteristics, becoming a natural confinement space, and the luminescent monomers and crosslinking agents are bound within the SEBS interface substrate layer.
[0033] Under the initiation of heat or ultraviolet radiation, the luminescent monomers undergo cross-linking / polymerization within the SEBS interface substrate layer to form a continuous elastic network. The luminescent monomers are fixed in situ and uniformly dispersed in the SEBS interface substrate layer, without phase separation or fluorescence quenching, and cannot diffuse into the solution or aggregate. The polymerization reaction is forcibly confined to the interface region, with only interfacial polymerization occurring and no bulk polymerization, thus forming an integrated luminescent layer 200 in which the SEBS interface substrate layer and the luminescent monomers are uniformly dispersed. This results in a highly uniform film thickness, a dense film without pinholes, and low surface roughness of the luminescent layer 200. Under the stretching of the display panel 30, the risk of breakage of the luminescent layer 200 can be reduced, thereby improving the display effect of the display panel 30.
[0034] Compared to existing display panels where the light-emitting layer is fixed and cannot be stretched, this application avoids the problem of reduced resolution caused by the increased gap between adjacent pixel areas after stretching the display panel 30 by allowing the light-emitting layer 200 to be stretched together with the control substrate 100, where the pixel area remains unchanged.
[0035] Compared to existing display panels where the light-emitting layer can be stretched, this application improves the tensile properties of the light-emitting layer 200 by forming a barrier layer 400 on the control substrate 100. The barrier layer 400 defines multiple openings 410 that penetrate the barrier layer 400 to expose the control substrate 100 below, and each opening 410 corresponds to a pixel area of the display panel 30. A light-emitting solution 500 is disposed within each opening 410, comprising a copolymer elastomer, a light-emitting monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution 520 is disposed on the barrier layer 400, covering both the barrier layer 400 and the light-emitting solution 500. The light-emitting solution 500 is then polymerized to form a light-emitting layer 200 within the openings 410. This improves the tensile strength of the light-emitting layer 200, reduces the risk of breakage, and enhances the display effect of the display panel 30.
[0036] Figure 3aThis is a partial flowchart illustrating a method for fabricating a control substrate according to the first embodiment of this application. Figure 3b This is a schematic diagram of the remaining part of a method for fabricating a control substrate according to the first embodiment of this application, as shown below. Figures 3a-3b As shown, step S1, which involves providing a control substrate, includes the following steps prior to the following: S01: Provide a flexible substrate; The elastic substrate 110 can be made of a copolymer elastomer.
[0037] S02: An anode control layer and an anode layer are sequentially formed on the elastic substrate, wherein the anode layer includes a plurality of anodes; The anode control layer 120 includes a plurality of active switches, which are connected to the anode 140.
[0038] S03: A stretchable hole composite layer is formed on the anode to form a control substrate.
[0039] For example, the stretchable hole composite layer 150 includes a hole injection layer (HIL), a hole transport layer (HTL), and a compensation layer (Prime).
[0040] For example, when the light emitted by the light-emitting layer 200 is white, a color filter substrate can also be disposed on the encapsulation layer 330, the color filter substrate including red color resist, green color resist and blue color resist.
[0041] In this application, the light-emitting layer 200 can emit colored light, such as three adjacent light-emitting layers 200 emitting red light, blue light, and green light respectively. Specifically, in step S3: a light-emitting solution is placed inside the opening, the light-emitting solution comprising a copolymer elastomer, a light-emitting monomer, an oligomer, a crosslinking agent, and a thermal initiator; a confinement solution is placed on the barrier layer, the confinement solution covering the barrier layer and the light-emitting solution; and the light-emitting solution is initiated to polymerize to form a light-emitting layer inside the opening. In this step, the light-emitting monomers of the different colored light-emitting layers 200 are different.
[0042] The luminescent solution 500 includes a red luminescent solution 511, a green luminescent solution 512, and a blue luminescent solution 513; the red luminescent solution includes a copolymer elastomer solution, a red luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; the green luminescent solution includes a copolymer elastomer solution, a green luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; the blue luminescent solution includes a copolymer elastomer solution, a blue luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; wherein the crosslinking agent concentration of the blue luminescent solution is greater than that of the red luminescent solution, and the crosslinking agent concentration of the blue luminescent solution is greater than that of the green luminescent solution.
[0043] For example, the red luminescent solution comprises a copolymer elastomer solution with a concentration of 6 mg / mL-10 mg / mL, a red luminescent monomer with a concentration of 0.04 mg / mL-0.08 mg / mL, an oligomer with a concentration of 3 mg / mL-5 mg / mL, a crosslinking agent with a concentration of 0.01 mg / mL-0.03 mg / mL, and a thermal initiator with a concentration of 0.005 mg / mL-0.012 mg / mL.
[0044] When the concentration of the copolymer elastomer solution is >10 mg / mL, the viscosity of the luminescent solution 500 increases sharply and the fluidity decreases significantly. After being dropped into the opening 410, it cannot spread quickly and evenly, and is prone to local accumulation and uneven film thickness. At the same time, the SEBS macromolecular chains in the high-concentration copolymer elastomer solution are severely entangled, which will hinder the directional arrangement of the luminescent monomers in the interface region, resulting in incomplete polymerization reaction, decreased density of the luminescent layer 200, and stress concentration and cracking of the luminescent layer 200 are prone to occur during subsequent stretching.
[0045] When the concentration of the copolymer elastomer solution is <6mg / mL, the viscosity of the luminescent solution 500 is too low, and the macromolecular chains cannot form a continuous and stable SEBS interface substrate layer at the solid-liquid interface, i.e., the interface region. The interface region has insufficient support and cannot effectively bind the luminescent monomers and oligomers, which easily leads to monomer diffusion into the bulk solution and bulk polymerization. At the same time, the luminescent layer 200 formed by the low-concentration copolymer elastomer solution has poor mechanical properties and is prone to interlayer delamination and peeling, which cannot meet the requirements for flexible and stretchable applications.
[0046] The concentration of the copolymer elastomer solution is in the range of 7 mg / mL to 9 mg / mL. The viscosity of the luminescent solution 500 is moderate, which can quickly form a continuous SEBS interfacial substrate layer at the solid-liquid interface, i.e., the interfacial region, providing a stable space for the polymerization of luminescent monomers, and also ensure the uniform dispersion of luminescent monomers. After polymerization, the mechanical properties of the luminescent layer 200 and the SEBS interfacial substrate layer are matched and the compatibility is excellent. Preferably, the concentration of the copolymer elastomer solution is 8 mg / mL.
[0047] The red luminescent monomer Ir(btp)₂(acac) is an iridium-based phosphorescent material, a heavy metal complex with strong intermolecular forces. When the concentration is too high (>0.08 mg / mL), concentration quenching and molecular aggregation easily occur in the interfacial region, leading to decreased luminous efficiency and a red shift in the spectrum. Conversely, a concentration <0.04 mg / mL results in insufficient light centers and low device brightness, failing to meet practical application requirements. Preferably, the concentration of the red luminescent monomer is 0.07 mg / mL, which balances luminous brightness and quenching effect, ensuring both red light luminous efficiency and uniformity.
[0048] For example, the green luminescent solution comprises a copolymer elastomer solution with a concentration of 6 mg / mL-10 mg / mL, a green luminescent monomer with a concentration of 0.03 mg / mL-0.07 mg / mL, an oligomer with a concentration of 3 mg / mL-5 mg / mL, a crosslinking agent with a concentration of 0.01 mg / mL-0.03 mg / mL, and a thermal initiator with a concentration of 0.005 mg / mL-0.012 mg / mL.
[0049] The green luminescent monomer 4CzTPN exhibits superior self-luminescence efficiency. However, concentrations >0.07 mg / mL can induce intermolecular π-π stacking, leading to exciton quenching and affecting the cross-linking and formation of the SEBS interface substrate layer. Concentrations too low (<0.03 mg / mL) result in insufficient green light brightness, which is mismatched with the brightness of red and blue light. The optimal concentration of the green luminescent monomer is 0.06 mg / mL, achieving efficient green light emission while ensuring balanced brightness across the three colors.
[0050] For example, the blue luminescent solution comprises a copolymer elastomer solution with a concentration of 6 mg / mL-10 mg / mL, a blue luminescent monomer with a concentration of 0.04 mg / mL-0.09 mg / mL, an oligomer with a concentration of 3 mg / mL-5 mg / mL, a crosslinking agent with a concentration of 0.02 mg / mL-0.04 mg / mL, and a thermal initiator with a concentration of 0.005 mg / mL-0.012 mg / mL.
[0051] The blue luminescent monomer PFO-DBT has a relatively long conjugated polymer chain, resulting in slightly poor dispersion within the confined interface. Furthermore, the self-luminescence stability of the blue luminescent monomer is weaker than that of red and green materials. Therefore, it is necessary to appropriately increase the concentration to compensate for luminescence loss. A concentration >0.09 mg / mL will lead to polymer chain entanglement, disrupting the uniformity of confined polymerization; a concentration <0.04 mg / mL will result in insufficient blue light intensity and severe color deviation in the device. The preferred concentration of the blue luminescent monomer is 0.08 mg / mL, which ensures both blue light intensity and stability.
[0052] Oligomers, including PTAA (polytriarylamine) oligomers, serve as interfacial guides and carrier transport aids. When the PTAA oligomer concentration is >5 mg / mL, the oligomer content is too high, which will form excessive transport channels in the confined region, crowding out the space of the luminescent monomers and causing a decrease in the density of the luminescent centers in the luminescent layer 200. At the same time, it affects the compactness of the SEBS interfacial substrate layer. When the PTAA oligomer concentration is <3 mg / mL, the interfacial guiding effect is insufficient, and it cannot effectively promote the directional arrangement of luminescent monomers in the confined region. After polymerization, the film roughness increases and the density decreases. At the same time, the carrier transport efficiency decreases, the device driving voltage increases, and the luminous efficiency declines.
[0053] The preferred concentration of PTAA oligomer is 4 mg / mL, which can form a uniform guiding layer in the confined region, help the luminescent monomers to arrange in an orderly manner and improve the density of the luminescent layer 200, and also build a stable carrier transport channel to ensure the balanced carrier transport efficiency of the red, green and blue luminescent layers 200 without affecting the luminescence performance of each region.
[0054] Thermal initiators include AIBN as a low-temperature thermal initiator. When the concentration of the thermal initiator is >0.012 mg / mL, the initiator content is too high, the polymerization rate is too fast, the monomers in the confined region polymerize violently, which easily produces bubbles and pore defects. At the same time, the amount of residual initiator fragments increases, which become luminescence quenching centers, reducing the luminescence efficiency and lifespan of the device. When the concentration of the thermal initiator is <0.005 mg / mL, there are insufficient active sites for initiation, the polymerization reaction is incomplete, a large number of luminescent monomers cannot participate in crosslinking, the amount of unpolymerized luminescent monomers increases significantly, and the density and mechanical properties of the luminescent layer decrease significantly.
[0055] Preferably, the concentration of the thermal initiator is 0.01 mg / mL, which can provide sufficient and mild active sites in an 80℃ thermal initiation environment, enabling complete and uniform polymerization of luminescent monomers within the confined area without significant residual initiator, while avoiding defects caused by excessively rapid reaction, and is compatible with the unified initiation process of the three-color luminescent layer 200.
[0056] The crosslinking agent concentration of red luminescent solution 511 is 0.01 mg / mL-0.03 mg / mL; the crosslinking agent concentration of green luminescent solution 512 is 0.01 mg / mL-0.03 mg / mL; and the crosslinking agent concentration of blue luminescent solution 513 is 0.02 mg / mL-0.04 mg / mL.
[0057] The crosslinking agent promotes in-situ crosslinking of oligomers to form an elastic three-dimensional network, thereby fixing the luminescent monomers. In the red luminescent solution 511 and the green luminescent solution 512, if the concentration of the crosslinking agent is <0.01 mg / mL, the crosslinking reaction is incomplete, resulting in poor mechanical properties and easy damage to the luminescent layer 200, and easy migration of the luminescent monomers. If the concentration of the crosslinking agent is >0.03 mg / mL, the crosslinking rate is too fast, which will cause the luminescent monomers to polymerize before they can arrange themselves in an orderly manner, increasing the internal defects of the film layer. At the same time, excessive crosslinking agent will quench the luminescence and reduce the luminescence efficiency. The preferred concentration of the crosslinking agent is 0.02 mg / mL.
[0058] In the blue luminescent solution 513, the polymer chains of the blue luminescent monomers are long and the polymerization rate is slow. Furthermore, the blue luminescent layer 200 has higher requirements for film stability. Therefore, the concentration of the crosslinking agent needs to be increased to 0.02 mg / mL-0.04 mg / mL, with the preferred concentration being 0.035 mg / mL, in order to accelerate the crosslinking rate, ensure the dense structure and stable luminescence of the blue luminescent layer 200, and avoid luminescence quenching caused by excessive crosslinking.
[0059] In this embodiment, the luminescent layer 200 is prepared by placing luminescent solutions 500 of different colors in different openings 410, namely, the luminescent solutions 500 include red luminescent solution 511, green luminescent solution 512, and blue luminescent solution 513. Then, a confinement solution 520 is placed on all the luminescent solutions 500 and the barrier layer 400 for unified initiation polymerization. Specifically: Step S3: A luminescent solution is disposed within the opening, the luminescent solution comprising a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; a confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; the step of initiating polymerization of the luminescent solution to form a luminescent layer within the opening includes: S311: A red luminescent solution, a green luminescent solution, and a blue luminescent solution are sequentially added to different openings, wherein the red luminescent solution comprises a copolymer elastomer, a red luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; the blue luminescent solution comprises a copolymer elastomer, a blue luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; and the green luminescent solution comprises a copolymer elastomer, a green luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. For example, the order in which the red luminescent solution 511, the green luminescent solution 512, and the blue luminescent solution 513 are added is not limited.
[0060] S312: A confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; S313: Initiate polymerization of the luminescent solution to form a luminescent layer within the opening.
[0061] It is understood that the luminescent solution 500 in steps S312 and S313 includes a red luminescent solution 511, a green luminescent solution 512, and a blue luminescent solution 513.
[0062] By sequentially adding red luminescent solution 511, green luminescent solution 512, and blue luminescent solution 513 into different openings 410, and then placing a confinement solution 520 on the barrier layer 400, the confinement solution 520 covers the barrier layer 400 and the luminescent solution 500; polymerization of all the luminescent solutions 500 is initiated to form a luminescent layer 200 within the openings 410. This allows for the direct formation of luminescent layers 200 of different colors within different openings 410, improving preparation efficiency.
[0063] Step S4: Removing the confinement solution and the barrier layer, and forming a composite control layer on the light-emitting layer to form the display panel includes: S41: Remove the confining solution and the barrier layer; The barrier layer 400 is made of photoresist material and can be removed by photoresist stripping, which can also remove the confinement solution 520 at the same time.
[0064] S42: A stretchable electronic composite layer is formed on the light-emitting layer; For example, the stretchable electronic composite layer 310 includes a hole blocking layer (HBL) and an electron transport layer (ETL).
[0065] S43: A cathode layer is formed on the stretchable electronic composite layer to form the display panel.
[0066] The display panel 30 displays an image by controlling the light-emitting layer 200 to emit light through the anode 140 and cathode. It is also understood that in step S43: forming the cathode layer 320 on the stretchable electronic composite layer 310 to form the display panel 30, after the cathode layer 320 is prepared, an encapsulation layer 330 is required to protect the display panel 30.
[0067] Example 2: Figure 4a This is a partial schematic diagram of the manufacturing process of a display panel according to a second embodiment of this application. Figure 4b This is a schematic diagram of the remaining part of the process of a method for manufacturing a display panel according to the second embodiment of this application, as shown below. Figures 4a-4b As shown, unlike the first embodiment, this embodiment sets up the three different color light-emitting layers 200 to be aggregated separately.
[0068] Because the green luminescent monomer 4CzTPN is a small-molecule TADF material with small molecular size and high reactivity, it can rapidly participate in interfacial polymerization under initiation, resulting in high conversion rate and minimal residue after polymerization. The red luminescent monomer Ir(btp)2(acac) is a metal complex with slightly lower molecular activity than the green monomer, and its residue after polymerization is slightly higher than that of the green layer. The blue monomer PFO-DBT, a conjugated polymer with long molecular chains and large steric hindrance, has a slow diffusion rate within confined regions, preventing some long-chain monomers from participating in cross-linking polymerization in time. Therefore, the residue of unpolymerized blue luminescent monomers after polymerization is higher than that of red and green luminescent monomers. Separating the three different colored luminescent layers 200 allows for individual initiation of polymerization.
[0069] Specifically, unlike the first embodiment, step S3: disposing a luminescent solution within the opening, the luminescent solution comprising a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; disposing a confinement solution on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; and initiating polymerization of the luminescent solution to form a luminescent layer within the opening includes: S321: A first luminescent solution is added into the first opening 411. The first luminescent solution includes a copolymer elastomer, a first luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, and the confinement solution covers the barrier layer and the first luminescent solution. Under a first preset condition, the first luminescent solution is initiated to polymerize in order to form a first luminescent layer in the first opening. S322: A second luminescent solution is added into the second opening. The second luminescent solution includes a copolymer elastomer, a second luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, and the confinement solution covers the barrier layer and the second luminescent solution. Under a second preset condition, the second luminescent solution is polymerized to form a second luminescent layer in the second opening. S323: A third luminescent solution is added into the third opening, the third luminescent solution comprising a copolymer elastomer, a third luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; a confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the third luminescent solution; under a third preset condition, the third luminescent solution is initiated to polymerize, so as to form a third luminescent layer in the third opening; That is, the opening 410 includes a first opening 411, a second opening 412 and a third opening 413, which respectively form a first light-emitting layer 514, a second light-emitting layer 515 and a third light-emitting layer 516 within the first opening 411, the second opening 412 and the third opening 413.
[0070] Among them, one of the first luminescent solution, the third luminescent solution, and the first luminescent solution is a blue luminescent solution 513, and the other two are a red luminescent solution 511 and a green luminescent solution 512, respectively. Under the same initiation energy, the initiation duration for initiating the polymerization of the blue luminescent solution 513 is greater than the initiation duration for initiating the polymerization of the red luminescent solution 511 and the initiation duration for initiating the polymerization of the green luminescent solution 512; or under the same initiation duration, the initiation energy for initiating the polymerization of the blue luminescent solution 513 is greater than the initiation energy for initiating the polymerization of the red luminescent solution 511 and the initiation energy for initiating the polymerization of the green luminescent solution 512.
[0071] This application does not specify the order of the red luminescent solution 511, the green luminescent solution 512, and the blue luminescent solution 513.
[0072] For example, the first luminescent solution is a blue luminescent solution 513, the second luminescent solution is a green luminescent solution, and the third luminescent solution is a red luminescent solution 511; alternatively, the first luminescent solution is a blue luminescent solution 513, the third luminescent solution is a red luminescent solution, and the fourth luminescent solution is a green luminescent solution 512.
[0073] For example, the first luminescent solution is a green luminescent solution 512, the second luminescent solution is a blue luminescent solution, and the third luminescent solution is a red luminescent solution 511; alternatively, the first luminescent solution is a green luminescent solution 512, the third luminescent solution is a red luminescent solution, and the fourth luminescent solution is a blue luminescent solution 513.
[0074] For example, the first luminescent solution is a red luminescent solution 511, the second luminescent solution is a blue luminescent solution, and the third luminescent solution is a green luminescent solution 512; alternatively, the first luminescent solution is a red luminescent solution 511, the third luminescent solution is a green luminescent solution, and the fourth luminescent solution is a blue luminescent solution 513.
[0075] Furthermore, the polymerization can be initiated by heat or by ultraviolet radiation. When it is initiated by heat, the initiation energy is heat; when it is initiated by ultraviolet radiation, the initiation energy is the intensity of ultraviolet radiation.
[0076] When initiated by heat, under the same heat, the initiation duration for polymerizing the blue luminescent solution 513 is greater than the initiation duration for polymerizing the red luminescent solution 511 and the initiation duration for polymerizing the green luminescent solution 512.
[0077] Alternatively, under the same initiation duration, the heat required to initiate the polymerization of the blue luminescent solution 513 is greater than the heat required to initiate the polymerization of the red luminescent solution 511 and the heat required to initiate the polymerization of the green luminescent solution 512.
[0078] When initiated by ultraviolet radiation, under the same ultraviolet radiation intensity, the initiation duration for polymerizing the blue luminescent solution 513 is greater than the initiation duration for polymerizing the red luminescent solution 511 and the initiation duration for polymerizing the green luminescent solution 512.
[0079] Alternatively, under the same initiation duration, the intensity of ultraviolet radiation that initiates the polymerization of the blue luminescent solution 513 is greater than the intensity of ultraviolet radiation that initiates the polymerization of the red luminescent solution 511 and the intensity of ultraviolet radiation that initiates the polymerization of the green luminescent solution 512.
[0080] This reduces the difference between the residual amount of blue luminescent monomers after polymerization and the residual amount of red luminescent monomers after polymerization, and thus reduces the difference between the residual amount of blue luminescent monomers after polymerization and the residual amount of green luminescent monomers after polymerization.
[0081] For example, under the same ultraviolet radiation intensity, the initiation duration for initiating polymerization of the blue luminescent solution 513, the initiation duration for initiating polymerization of the red luminescent solution 511, and the initiation duration for initiating polymerization of the green luminescent solution 512 increase sequentially.
[0082] Alternatively, under the same initiation duration, the ultraviolet radiation intensity that initiates the polymerization of the blue luminescent solution 513, the ultraviolet radiation intensity that initiates the polymerization of the red luminescent solution 511, and the ultraviolet radiation intensity that initiates the polymerization of the green luminescent solution 512 increase sequentially.
[0083] Under the same heat, the initiation duration for polymerization of the blue luminescent solution 513, the initiation duration for polymerization of the red luminescent solution 511, and the initiation duration for polymerization of the green luminescent solution 512 increase sequentially.
[0084] Alternatively, under the same duration of initiation, the heat required to initiate the polymerization of the blue luminescent solution 513, the heat required to initiate the polymerization of the red luminescent solution 511, and the heat required to initiate the polymerization of the green luminescent solution 512 increase sequentially.
[0085] This results in similar residual amounts of blue, red, and green light-emitting monomers after polymerization, making the light-emitting layer 200 more balanced and improving the display effect of the display panel 30.
[0086] Figure 5 This is a schematic diagram of a display panel according to an embodiment of this application, as shown below. Figure 5 As shown, this application also discloses a display panel 30, which is prepared by the above-described display panel preparation method. The display panel 30 includes a control substrate 100, a light-emitting layer 200, and a composite control layer 300. The light-emitting layer 200 is disposed on the control substrate 100, and the composite control layer 300 is disposed on the light-emitting layer 200. The control substrate 100 and the composite control layer 300 control the light-emitting layer 200 to emit light.
[0087] Compared to existing display panels where the light-emitting layer is fixed and cannot be stretched, this application avoids the problem of reduced resolution caused by the increased gap between adjacent pixel areas after stretching the display panel 30 by allowing the light-emitting layer 200 to be stretched together with the control substrate 100, where the pixel area remains unchanged.
[0088] Compared to existing display panels where the light-emitting layer can be stretched, this application improves the tensile properties of the light-emitting layer 200 by forming a barrier layer 400 on the control substrate 100. The barrier layer 400 defines multiple openings 410 that penetrate the barrier layer 400 to expose the control substrate 100 below, and each opening 410 corresponds to a pixel area of the display panel 30. A light-emitting solution 500 is disposed within each opening 410, comprising a copolymer elastomer, a light-emitting monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution 520 is disposed on the barrier layer 400, covering both the barrier layer 400 and the light-emitting solution 500. The light-emitting solution 500 is then polymerized to form a light-emitting layer 200 within the openings 410. This improves the tensile strength of the light-emitting layer 200, reduces the risk of breakage, and enhances the display effect of the display panel 30.
[0089] For example, the control substrate 100 includes an elastic substrate 110, an anode control layer 120, an anode layer 130, and a stretchable hole composite layer 150. The anode control layer 120 and the anode layer 130 are sequentially disposed on the elastic substrate 110, and the stretchable hole composite layer 150 is disposed on the anode 140 of the anode layer 130. The composite control layer 300 includes a stretchable electron composite layer 310 and a cathode layer 320. The light-emitting layer 200 is disposed on the stretchable hole composite layer 150, and the stretchable electron composite layer 310 and the cathode layer 320 are sequentially disposed on the light-emitting layer 200.
[0090] In the display panel 30 of this application, there are transition regions of 1-3 nm between the light-emitting layer 200 and the stretchable hole composite layer 150, and between the light-emitting layer 200 and the stretchable electron composite layer 310. No obvious clear interface can be observed under a transmission electron microscope. The surface roughness Ra of the light-emitting layer 200 is <0.5 nm, and it appears continuous without pinholes or island-like grains under an atomic weight microscope.
[0091] Furthermore, the luminescent layer 200 is a cross-linked polymer, and its molecular weight (Mw) measured by gel permeation chromatography is greater than 10. 5 Furthermore, X-ray photoelectron spectroscopy depth analysis showed that the contents of C=N double bonds and aromatic rings varied in a concentration gradient.
[0092] That is, the concentration gradient decreases from the luminescent layer 200 along the direction away from the stretchable hole composite layer 150. This is mainly because the polymerization reaction of the luminescent monomer preferentially occurs on the surface of the stretchable hole composite layer 150. The surface of the stretchable hole composite layer 150 has functional groups that can interact with the luminescent monomer, playing a role in "polymerization initiation and anchoring". When the luminescent monomer chemically bonds with the surface functional groups of the stretchable hole composite layer 150, it will preferentially form a polymer chain containing C=N double bonds and aromatic rings (luminescent groups). Therefore, the degree of polymerization is the highest at the interface of the stretchable hole composite layer 150, and the content of C=N double bonds and aromatic rings (luminescent cores) is the highest.
[0093] As the polymerization reaction progresses into the luminescent layer 200, the concentration of the luminescent monomer gradually decreases, the polymerization reaction activity weakens, and the amount of C=N double bonds and aromatic rings incorporated into the newly formed polymer chains decreases, thus their content gradually decreases.
[0094] Furthermore, the light-emitting layer 200 prepared by the method of this application has a leakage current of <10V at 10V. -7 A / cm², with brightness maintained at 1000 cd / m², lifespan greater than 1000 h, and luminous uniformity greater than 98%.
[0095] Figure 6 This is a schematic diagram of a light-emitting layer according to an embodiment of this application, as shown below. Figure 6 As shown, when the cathode layer 320 and the anode layer 130 are subjected to tensile or compressive forces in the planar direction, at the interface between the stretchable cavity composite layer 150 and the light-emitting layer 200, the deformation is delayed and unevenly transmitted to the light-emitting layer 200, which leads to slow deformation of the light-emitting layer 200, excessive local stretching / compression causing cracks and uneven light emission. Therefore, this application provides a cavity recess 152 and a cavity protrusion 151 on the side of the stretchable cavity composite layer 150 near the light-emitting layer 200.
[0096] Since the light-emitting layer 200 prepared in this proposal has great stretchability, by providing a cavity recess 152 and a cavity protrusion 151 on the stretchable cavity composite layer 150, the contact between the light-emitting layer 200 and the stretchable cavity composite layer 150 adopts a concave-convex structure, thereby increasing the friction between the stretchable cavity composite layer 150 and the light-emitting layer 200 during stretching, so that the light-emitting layer 200 is stretched uniformly.
[0097] Furthermore, the hole recess 152 and the hole protrusion 151 disposed on the side of the stretchable hole composite layer 150 near the light-emitting layer 200 are spaced 1-2 nm apart.
[0098] Figure 7 This is a schematic diagram of a display device according to an embodiment of this application, as shown below. Figure 7As shown, this application also discloses a display device 10, which includes a driving circuit 20 and a display panel 30. The driving circuit 20 is connected to the display panel 30 and is used to drive the display panel 30 to display an image.
[0099] It should be noted that the limitations on each step involved in this solution are not considered as limiting the order of steps, provided that they do not affect the implementation of the specific solution. The steps listed first can be executed first, later, or even simultaneously. As long as this solution can be implemented, it should be considered to fall within the scope of protection of this application.
[0100] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.
[0101] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.
Claims
1. A method for manufacturing a display panel, characterized in that, The method for manufacturing the display panel includes the following steps: Provide a control board; A barrier layer is formed on the control substrate, the barrier layer defining a plurality of openings that penetrate the barrier layer to expose the control substrate below, and the openings correspond one-to-one with the pixel areas of the display panel; A luminescent solution is disposed within the opening, the luminescent solution comprising a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; A confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; The luminescent solution is polymerized to form a luminescent layer within the opening; The confinement solution and the barrier layer are removed, and a composite control layer is formed on the light-emitting layer to form the display panel.
2. The method for manufacturing a display panel according to claim 1, characterized in that, Prior to the step of providing a control substrate, the following steps are included: Provide a flexible substrate; An anode control layer and an anode layer are sequentially formed on the elastic substrate, wherein the anode layer includes a plurality of anodes; A stretchable cavity composite layer is formed on the anode to form a control substrate.
3. The method for manufacturing a display panel according to claim 2, characterized in that, The step of removing the confinement solution and the barrier layer, and forming a composite control layer on the light-emitting layer to form the display panel includes: Remove the confining solution and the barrier layer; A stretchable electronic composite layer is formed on the light-emitting layer; A cathode layer is formed on the stretchable electronic composite layer to form the display panel.
4. The method for manufacturing a display panel according to any one of claims 1-3, characterized in that, The luminescent solution includes a red luminescent solution, a green luminescent solution, and a blue luminescent solution; The red luminescent solution comprises a copolymer elastomer solution, a red luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; The green luminescent solution comprises a copolymer elastomer solution, a green luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; the blue luminescent solution comprises a copolymer elastomer solution, a blue luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. The crosslinking agent concentration of the blue luminescent solution is greater than that of the red luminescent solution, and the crosslinking agent concentration of the blue luminescent solution is greater than that of the green luminescent solution.
5. The method for manufacturing a display panel according to claim 1, characterized in that, The luminescent solution is disposed within the opening, and the luminescent solution comprises a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; A confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; The step of initiating polymerization of the luminescent solution to form a luminescent layer within the opening includes: A red luminescent solution, a green luminescent solution, and a blue luminescent solution are sequentially added into different openings. The red luminescent solution comprises a copolymer elastomer, a red luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. The blue luminescent solution comprises a copolymer elastomer, a blue luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. The green luminescent solution comprises a copolymer elastomer, a green luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; The luminescent solution is polymerized to form a luminescent layer within the opening.
6. The method for manufacturing a display panel according to claim 1, characterized in that, The luminescent solution is disposed within the opening, and the luminescent solution comprises a copolymer elastomer, a luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator; A confinement solution is disposed on the barrier layer, the confinement solution covering the barrier layer and the luminescent solution; The step of initiating polymerization of the luminescent solution to form a luminescent layer within the opening includes: A first luminescent solution is added into the first opening. The first luminescent solution includes a copolymer elastomer, a first luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, and the confinement solution covers the barrier layer and the first luminescent solution. Under first preset conditions, the first luminescent solution is polymerized to form a first luminescent layer in the first opening. A second luminescent solution is added into the second opening. The second luminescent solution includes a copolymer elastomer, a second luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is disposed on the barrier layer, and the confinement solution covers the barrier layer and the second luminescent solution. Under a second preset condition, the second luminescent solution is polymerized to form a second luminescent layer in the second opening. A third luminescent solution is added into the third opening. The third luminescent solution includes a copolymer elastomer, a third luminescent monomer, an oligomer, a crosslinking agent, and a thermal initiator. A confinement solution is placed on the barrier layer, and the confinement solution covers the barrier layer and the third luminescent solution. Under a third preset condition, the third luminescent solution is polymerized to form a third luminescent layer in the third opening. Wherein, one of the first luminescent solution, the second luminescent solution, and the third luminescent solution is a blue luminescent solution, and the other two are a red luminescent solution and a green luminescent solution, respectively. Under the same initiation energy, the initiation duration for initiating polymerization of the blue luminescent solution is greater than the initiation duration for initiating polymerization of the red luminescent solution and the initiation duration for initiating polymerization of the green luminescent solution; or under the same initiation duration, the initiation energy for initiating polymerization of the blue luminescent solution is greater than the initiation energy for initiating polymerization of the red luminescent solution and the initiation energy for initiating polymerization of the green luminescent solution.
7. The method for manufacturing a display panel according to claim 1, characterized in that, The confined solution includes anhydrous paraffin oil.
8. A display panel, characterized in that, The display panel is manufactured by the method of manufacturing a display panel according to any one of claims 1-7. The display panel includes a control substrate, a light-emitting layer and a composite control layer. The light-emitting layer is disposed on the control substrate, and the composite control layer is disposed on the light-emitting layer. The control substrate and the composite control layer control the light-emitting layer to emit light.
9. The display panel according to claim 8, characterized in that, The control substrate includes an elastic substrate, an anode control layer, an anode layer, and a stretchable hole composite layer. The anode control layer and the anode layer are sequentially disposed on the elastic substrate, and the stretchable hole composite layer is disposed on the anode. The composite control layer includes a stretchable electron composite layer and a cathode layer, the light-emitting layer is disposed on the stretchable hole composite layer, and the stretchable electron composite layer and the cathode layer are disposed sequentially on the light-emitting layer; The stretchable vacuolated composite layer has a vacuolated recess and a vacuolated protrusion on the side near the light-emitting layer.
10. A display device, characterized in that, The display device includes a driving circuit and a display panel as described in any one of claims 8-9, wherein the driving circuit is connected to the display panel.