Method for manufacturing display panel, display panel and display device

Abstract

The application provides a display panel preparation method, a display panel and a display device. The display panel preparation method comprises the following steps: forming a display function layer on a substrate surface. A plurality of first electrodes are formed on the side of the display function layer away from the substrate. A plurality of photoelectric conversion layers corresponding to the first electrodes are formed on the side of the first electrodes away from the display function layer. A plurality of second electrodes corresponding to the photoelectric conversion layers are formed on the side of the photoelectric conversion layers away from the first electrodes, and the polarity of the second electrodes is opposite to that of the first electrodes. A conductive connection component is formed between the second electrodes to connect the second electrodes in series. A voltage is loaded on the second electrodes to form a current short circuit between the second electrodes, so that the second electrodes and the adjacent photoelectric conversion layers are subjected to annealing treatment. At least part of the conductive connection component is removed to disconnect the second electrodes. The photoelectric conversion efficiency of the integrated solar cell on the display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a method for manufacturing a display panel, a display panel, and a display device. Background Technology

[0002] OLED (Organic Light-Emitting Diode) is a self-emissive material, eliminating the need for a backlight. It offers wide viewing angles, uniform image quality, fast response times, easy colorization, simple driving circuitry for emission, and a simple manufacturing process. It can also be fabricated into flexible panels, meeting the principles of thinness and lightness. Currently, AMOLED is the mainstream OLED technology, widely used in small-sized flat panel displays such as mobile phones and tablets. OLED display panels have low driving voltage and low energy consumption, making them compatible with solar cells and integrated circuits. Integrating solar cells on the display panel surface achieves low power consumption and energy savings, aligning more closely with green and environmentally friendly principles compared to traditional batteries.

[0003] However, the process of integrating solar cells onto the surface of a display panel still presents certain challenges. Summary of the Invention

[0004] This application addresses the shortcomings of existing technologies by proposing a method for manufacturing a display panel, a display panel, and a display device, thereby solving the technical problem of integrating solar cells onto the surface of a display panel and achieving normal power generation.

[0005] According to a first aspect of this application, a method for fabricating a display panel is provided. The method includes: forming a display functional layer on a substrate surface; forming a plurality of spaced-apart first electrodes on a side of the display functional layer away from the substrate; forming a plurality of corresponding photoelectric conversion layers on a side of the first electrodes away from the display functional layer, the photoelectric conversion layers including a hole transport layer, an active layer, and an electron transport layer stacked together; forming a plurality of corresponding second electrodes on a side of the photoelectric conversion layers away from the first electrodes, the polarities of the second electrodes being opposite to those of the first electrodes; forming conductive connection components between the plurality of second electrodes, connecting the second electrodes in series; applying a voltage to the second electrodes to create a current short circuit between the second electrodes, thereby annealing the second electrodes and the adjacent photoelectric conversion layers; and removing at least a portion of the conductive connection components to disconnect the second electrodes, thereby integrating a plurality of solar cells on the surface of the display functional layer.

[0006] As can be seen from the above embodiments, in the method of integrating solar cells on a display panel in this application, a conductive connection component is set between multiple second electrodes in the annealing step, thereby making the multiple second electrodes conductive. A voltage is applied to the second electrodes, causing a short circuit between the multiple second electrodes. The high temperature generated by the short circuit causes the second electrodes to undergo annealing treatment. The heat is conducted to the adjacent photoelectric conversion layer, causing the photoelectric conversion layer to undergo annealing treatment together. After annealing, the photoelectric conversion efficiency of the photoelectric conversion layer is improved, enabling power generation at the normal order of magnitude. At the same time, high-temperature annealing can reduce the sheet resistance of the second electrodes, thereby improving the power generation efficiency of the solar cell. This successfully integrates a normally generating solar cell on the display panel, reducing the power consumption of the display panel and achieving energy saving and environmental protection.

[0007] In one embodiment, the hole transport layer comprises a P-type semiconductor, the electron transport layer comprises an N-type semiconductor, and the active layer comprises an intrinsic semiconductor.

[0008] In one embodiment, forming a plurality of corresponding second electrodes on the side of the photoelectric conversion layer away from the first electrode, the polarity of the second electrodes being opposite to that of the first electrodes. Forming conductive connection components between the second electrodes to connect them in series includes: depositing a second electrode film on the surface of the photoelectric conversion layer; patterning and etching the second electrode film to form a plurality of second electrodes corresponding to the first electrodes; connecting the second electrodes to adjacent first electrodes; and depositing conductive connection components between the adjacent plurality of second electrodes, the conductive connection components being connected to the corresponding second electrode and the second electrodes adjacent to the corresponding second electrode, thereby connecting the second electrodes in series.

[0009] In one embodiment, a plurality of corresponding second electrodes are formed on the side of the photoelectric conversion layer away from the first electrode, and the polarity of the second electrodes is opposite to that of the first electrode. Forming conductive connection components between the second electrodes to connect them in series includes:

[0010] A second electrode film is deposited on the surface of the photoelectric conversion layer. The second electrode film is then patterned and etched to form a plurality of second electrodes corresponding to the first electrodes. The second electrodes are not connected to adjacent first electrodes, and the polarity of the second electrodes is opposite to that of the first electrodes. Conductive connection components are deposited between the adjacent plurality of second electrodes. These conductive connection components are connected to the corresponding second electrodes and to adjacent second electrodes and first electrodes, thereby connecting the second electrodes in series.

[0011] In one embodiment, the material of the second electrode includes a transparent conductive oxide.

[0012] In one embodiment, before forming a plurality of spaced first electrodes on the side of the display functional layer away from the substrate, the method further includes forming a heat insulation layer on the side of the display functional layer away from the substrate.

[0013] According to a second aspect of the embodiments of this application, another method for fabricating a display panel is provided, comprising: forming a display functional layer on a substrate surface; forming a plurality of spaced-apart first electrodes on a side of the display functional layer away from the substrate; forming a plurality of corresponding photoelectric conversion layers on a side of the first electrodes away from the display functional layer, the photoelectric conversion layers comprising stacked hole transport layers, active layers, and electron transport layers; forming second electrodes on a side of the photoelectric conversion layers away from the first electrodes, the second electrodes being linearly distributed and having a polarity opposite to that of the first electrodes; applying a voltage to the second electrodes to create a current short circuit in the second electrodes, thereby annealing the second electrodes and the adjacent photoelectric conversion layers; removing a portion of the second electrodes, the remaining second electrodes corresponding to the plurality of first electrodes respectively. ， This allows multiple solar cells to be integrated onto the surface of the display functional layer.

[0014] As can be seen from the above embodiments, this application also provides another method for fabricating a display panel. In the step of patterning and etching the second electrode, the multiple second electrodes are arranged in a linear distribution. Instead of setting conductive connection components on the second electrodes, a voltage is directly applied to the linearly distributed second electrodes, thereby enabling the second electrodes to achieve short-circuit annealing. The heat is conducted to the adjacent photoelectric conversion layer, enabling the photoelectric conversion layer to also achieve annealing treatment. Finally, a normally generating solar cell is successfully integrated on the display panel, reducing the power consumption of the display panel and saving energy and protecting the environment.

[0015] In one embodiment, forming a second electrode on the side of the photoelectric conversion layer away from the first electrode, wherein the second electrode is linearly distributed, comprises: depositing a second electrode film on the surface of the photoelectric conversion layer, and linearly etching the second electrode film to form the linearly distributed second electrode.

[0016] According to a third aspect of the present application, a display panel is provided, fabricated using the display panel fabrication method provided in the foregoing embodiments. The display panel includes: a substrate, a display functional layer, a plurality of spaced-apart first electrodes, a plurality of photoelectric conversion layers, a plurality of second electrodes, and conductive connection components. The display functional layer is disposed on one side of the substrate. The plurality of spaced-apart first electrodes are disposed on the side of the display functional layer away from the substrate. The plurality of photoelectric conversion layers are disposed on the side of the first electrodes away from the display functional layer, each photoelectric conversion layer corresponding to a first electrode. The plurality of second electrodes are disposed on the side of the photoelectric conversion layers away from the first electrodes, each second electrode corresponding to a first electrode, and the polarity of the second electrodes is opposite to that of the first electrodes. The conductive connection components are connected to both the first electrodes and the second electrodes adjacent to the first electrodes.

[0017] As can be seen from the above embodiments, this application provides a conductive connection component between the first electrode and the adjacent second electrode on a display panel integrated with solar cells, which can reduce the contact resistance between the first electrode and the adjacent second electrode and improve the power generation efficiency of the solar cells integrated in the display panel.

[0018] In one embodiment, the first electrode and the second electrode adjacent to the first electrode are connected. In another embodiment, the conductive connection assembly is connected to both the first electrode and the second electrode adjacent to the first electrode.

[0019] According to a fourth aspect of the present application, a display device is provided, comprising a display panel prepared by the method for preparing a display panel as described in the foregoing embodiments.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of this application;

[0023] Figure 2 This is a schematic flowchart of a method for manufacturing a display panel according to another embodiment of this application;

[0024] Figure 3 This is a schematic flowchart of a method for manufacturing a display panel according to another embodiment of this application;

[0025] Figures 4a-4c Through Figure 1 A schematic cross-sectional view of a display panel prepared by the method shown in the diagram during the preparation process.

[0026] Figures 5a-5c Through Figure 1 A cross-sectional view of another display panel prepared by the method shown during the preparation process;

[0027] Figure 6 Through Figure 2 A cross-sectional view of a display panel prepared by the method shown during the preparation process;

[0028] Figure 7 Through Figure 2 A cross-sectional view of another display panel prepared by the method shown during the preparation process;

[0029] Figure 8 This is a top view of a display panel according to one embodiment of the present application.

[0030] In the picture:

[0031] 1-Substrate; 2-Display functional layer; 3-First electrode; 4-Photoelectric conversion layer; 5-Second electrode; 6-Conductive connection component; 7-Heat insulation layer; 100-Solar cell. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0034] The research and development approach of this application includes: Research has shown that, to save energy, there are currently designs that integrate solar cells onto display panels, aiming to convert a portion of the light energy generated by the light-emitting area of ​​the display panel into electrical energy to power the panel's light emission. However, there is a bottleneck in the current process of integrating solar cells onto display panels: the entire display panel with integrated solar cells cannot be annealed during the integration process. Traditional annealing methods would damage the organic light-emitting materials in the OLED display panel, thus making it impossible to anneal the structure within the solar cell using traditional methods. However, without annealing, the conductivity of structures such as the electrode layer and photoelectric conversion layer in the solar cell is low, preventing the achievement of normal-level power generation.

[0035] The display module, its manufacturing method, and the display device provided in this application are intended to solve the above-mentioned technical problems in related technologies.

[0036] The display module, its manufacturing method, and the display device in the embodiments of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments can complement or combine with each other.

[0037] This application provides a display module. For example... Figure 1 , Figures 4a-4c and Figures 5a-5c As shown, the method for manufacturing this display panel includes the following steps:

[0038] S110: A display functional layer 2 is formed on the surface of substrate 1.

[0039] S120: A plurality of first electrodes 3 are formed on the side of the display functional layer 2 away from the substrate 1.

[0040] S130: A plurality of photoelectric conversion layers 4 are formed on the side of the first electrode 3 away from the display functional layer 2. The photoelectric conversion layer 4 includes a hole transport layer, an active layer and an electron transport layer stacked together.

[0041] S140: A plurality of corresponding second electrodes 5 are formed on the side of the photoelectric conversion layer 4 away from the first electrode 3, and the polarity of the second electrodes 5 is opposite to that of the first electrode 3.

[0042] S150: A conductive connection component 6 is formed between multiple second electrodes 5, so that the second electrodes 5 are connected in series.

[0043] S160: Apply voltage to the second electrode 5 to form a current short circuit between the second electrodes 5, thereby annealing the second electrode 5 and the adjacent photoelectric conversion layer 4.

[0044] S170: Remove at least part of the conductive connection component 6 to disconnect the connection between the second electrodes 5, thereby integrating multiple solar cells 100 on the surface of the display functional layer 2.

[0045] In this embodiment, the method for integrating a solar cell 100 on a display panel involves an annealing step where a conductive connection component 6 is provided between multiple second electrodes 5, thereby establishing conductivity between the multiple second electrodes 5. A voltage is applied to the second electrodes 5, causing a short circuit between them. The high temperature generated by the short circuit anneals the second electrodes 5. The heat is conducted to the adjacent photoelectric conversion layer 4, causing the photoelectric conversion layer 4 to also undergo annealing. After annealing, the photoelectric conversion efficiency of the photoelectric conversion layer 4 is improved, achieving power generation at a normal order of magnitude. Simultaneously, high-temperature annealing reduces the sheet resistance of the second electrodes 5, thereby improving the power generation efficiency of the solar cell 100. This successfully integrates a normally generating solar cell 100 (e.g., ...) on the display panel. Figure 8 As shown in the figure, this reduces the power consumption of the display panel, making it energy-saving and environmentally friendly.

[0046] In some embodiments, the substrate 1 is made of a rigid substrate or a flexible substrate, such as silicon, glass, or LCP (Liquid Crystal Polymer). Those skilled in the art can choose the appropriate material based on actual design requirements, and this application does not impose any particular limitation.

[0047] In some embodiments, the display functional layer 2 includes a driving circuit layer, a light-emitting layer, and an encapsulation layer (not shown) sequentially stacked on the substrate 1. The driving circuit layer includes an active layer, a first gate insulating layer, a first metal layer, a second gate insulating layer, a second metal layer, an interlayer insulating layer, a source / drain layer, and a planarization layer. The light-emitting layer includes a pixel electrode layer, a pixel definition layer, a light-emitting material layer, and a common electrode layer. The encapsulation layer includes a first inorganic layer, an organic layer, and a second inorganic layer.

[0048] In some embodiments, the solar cell 100 is disposed in the non-light-emitting area of ​​the display panel, and the solar cell 100 is not disposed in the light-emitting area to avoid affecting the display effect of the display panel.

[0049] In some embodiments, step S120, forming a plurality of spaced first electrodes 3 on the side of the display functional layer 2 away from the substrate 1, specifically includes: depositing a first electrode film on the surface of the display functional layer 2, and patterning and etching the first electrode film to form a plurality of spaced first electrodes 3.

[0050] In some embodiments, the deposition process includes PVD (physical vapor deposition) and CVD (chemical vapor deposition). The following embodiments use the same process, which will not be described again hereafter.

[0051] In one example, the first electrode film is deposited using sputtering deposition.

[0052] In some embodiments, the first electrode 3 is made of a metal, such as gold (Au), silver (Ag), aluminum (Al), molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu).

[0053] In one example, the first electrode 3 is made of molybdenum (Mo).

[0054] In some embodiments, in step S130, the hole transport layer is closer to the first electrode 3 than the electron transport layer. That is, the first electrode 3, the hole transport layer, the active layer, and the electron transport layer are stacked sequentially in a direction away from the substrate 1, and the first electrode 3 is the anode and the second electrode 5 is the cathode.

[0055] In some embodiments, in step S130, the electron transport layer is closer to the first electrode 3 than the hole transport layer. That is, the first electrode 3, the electron transport layer, the active layer, and the hole transport layer are stacked sequentially in a direction away from the substrate 1, and the first electrode 3 is the cathode and the second electrode 5 is the anode.

[0056] In some embodiments, the hole transport layer comprises a P-type semiconductor, the electron transport layer comprises an N-type semiconductor, and the active layer comprises an intrinsic semiconductor.

[0057] In one example, the hole transport layer is P-type amorphous silicon, the electron transport layer is N-type amorphous silicon, and the active layer is i-type amorphous silicon.

[0058] In some embodiments, steps S140 to S150 have two specific design schemes, such as... Figures 4a-4c As shown, the first scheme involves depositing a second electrode film on the surface of the photoelectric conversion layer 4, patterning and etching the second electrode film to form multiple second electrodes 5 corresponding to the first electrode 3. The second electrodes 5 are connected to adjacent first electrodes 3, and the polarity of the second electrodes 5 is opposite to that of the first electrodes 3. Conductive connection components 6 are deposited between the adjacent multiple second electrodes 5, and the conductive connection components 6 are connected to the corresponding second electrode 5 and the second electrodes 5 adjacent to the corresponding second electrode 5, thereby connecting the second electrodes 5 in series.

[0059] In the first approach, the formed second electrode 5 is first connected to the adjacent first electrode 3 to enable current conduction between them. Then, the conductive connection component 6 only needs to contact the second electrode 5 adjacent to its corresponding second electrode 5 to achieve current conduction, simplifying the limitations on the shape and position of the conductive connection component 6. The shape and size of the second electrode 5 and the conductive connection component 6 are not limited; those skilled in the art can set them according to actual conditions.

[0060] like Figures 5a-5c As shown, the second scheme of steps S140 to S150 is as follows: a second electrode film is deposited on the surface of the photoelectric conversion layer 4, and the second electrode film is patterned and etched to form a plurality of second electrodes 5 corresponding to the first electrode 3. The second electrodes 5 are not connected to adjacent first electrodes 3, and the polarity of the second electrodes 5 is opposite to that of the first electrodes 3. A conductive connection component 6 is deposited between the plurality of adjacent second electrodes 5, and the conductive connection component 6 is connected to the corresponding second electrode 5 and the second electrode 5 and the first electrode 3 adjacent to the corresponding second electrode 5, thereby connecting the second electrodes 5 in series.

[0061] In the second scheme, the second electrode 5 corresponds to the first electrode 3, and the formed second electrode 5 is not connected to the adjacent first electrode 3. Then, when forming the conductive connection component 6, the conductive connection component 6 is used to enable current conduction between the corresponding second electrode 5 and the second electrode 5 and the first electrode 3 adjacent to the corresponding second electrode 5. This scheme reduces the constraints on the shape and position of the second electrode 5, providing more possibilities for actual process conditions.

[0062] In some embodiments, the projected area of ​​the second electrode 5 on the surface of the substrate 1 is greater than or equal to the projected area of ​​the corresponding first electrode 3 on the surface of the substrate 1.

[0063] In some embodiments, the material of the second electrode 5 includes a transparent conductive oxide (TCO). Examples include indium tin oxide (ITO, In₂O₃:Sn), aluminum-doped zinc oxide (AZO, ZnO:Al), fluorine-doped tin oxide (FTO, SnO₂:F), and antimony-doped tin oxide (ATO, Sn₂O:Sb).

[0064] In one example, the material of the second electrode 5 is ITO.

[0065] In some embodiments, such as Figure 2 , 6 As shown in Figure 7, before step S120 forms a plurality of spaced first electrodes 3 on the side of the display functional layer 2 away from the substrate 1, step S111 is further included: forming a heat insulation layer 7 on the side of the display functional layer 2 away from the substrate 1.

[0066] In some embodiments, the material of the heat insulation layer 7 includes silicon dioxide, silicon nitride, or silicon oxide.

[0067] In one example, the insulation layer 7 is made of silicon dioxide (SiO2).

[0068] In some embodiments, the conductive connection component 6 is made of conductive metals (e.g., gold (Au), silver (Ag), aluminum (Al), molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu)), conductive metal oxides, conductive resins, graphene, or carbon nanotubes.

[0069] In one example, the conductive connection component 6 is made of aluminum (Al).

[0070] In one specific embodiment, the first electrode 3 of the solar cell 100 is molybdenum, the photoelectric conversion layer 4 adopts a PIN structure, and the second electrode 5 is ITO. The conductive connection component 6 is made of aluminum. Experimental results show that the power conversion efficiency (PCE) of the solar cell 100 integrated on the display panel is 0.3% before annealing and 1.5% after annealing. The sheet resistance of the second electrode 5 is 130Ω before annealing and 20Ω after annealing. Therefore, the annealing step of integrating the solar cell 100 onto the display panel can significantly improve the photoelectric conversion efficiency of the solar cell 100 and increase its power generation efficiency.

[0071] Based on the same inventive concept, embodiments of this application also provide another method for manufacturing a display panel, such as... Figure 3 As shown, it includes the following steps:

[0072] S110: A display functional layer 2 is formed on the surface of substrate 1.

[0073] S120: A plurality of first electrodes 3 are formed on the side of the display functional layer 2 away from the substrate 1.

[0074] S130: A plurality of photoelectric conversion layers 4 are formed on the side of the first electrode 3 away from the display functional layer 2. The photoelectric conversion layer 4 includes a hole transport layer, an active layer and an electron transport layer stacked together.

[0075] S210: A second electrode 5 is formed on the side of the photoelectric conversion layer 4 away from the first electrode 3. The second electrode 5 is linearly distributed and the polarity of the second electrode 5 is opposite to that of the first electrode 3.

[0076] S160: Apply voltage to the second electrode 5 to form a current short circuit between the second electrodes 5, thereby annealing the second electrode 5 and the adjacent photoelectric conversion layer 4.

[0077] S220: Remove part of the second electrode 5, and the remaining second electrode 5 corresponds to each of the multiple first electrodes 3, thereby integrating multiple solar cells 100 on the surface of the display functional layer 2.

[0078] In this embodiment, in step S210 of patterning and etching the second electrode 5, the multiple second electrodes 5 are arranged in a linear pattern. Instead of setting conductive connection components 6 on the second electrodes 5, a voltage is directly applied to the linearly distributed second electrodes 5, thereby enabling the second electrodes 5 to undergo short-circuit annealing. The heat is conducted to the adjacent photoelectric conversion layer 4, causing the photoelectric conversion layer 4 to undergo annealing treatment together. Finally, a normally generating solar cell 100 is successfully integrated on the display panel, reducing the power consumption of the display panel and saving energy and protecting the environment.

[0079] In some embodiments, the formation of a second electrode 5 on the side of the photoelectric conversion layer 4 away from the first electrode 3 in step S210, wherein the second electrode 5 is linearly distributed, specifically includes: depositing a second electrode film on the surface of the photoelectric conversion layer 4, and performing linear etching on the second electrode film to form the linearly distributed second electrode 5.

[0080] In some embodiments, the second electrode 5 is arranged in an array of multiple lines.

[0081] In some embodiments, the second electrode 5 is arranged in a spiral single-line layer.

[0082] Based on the same inventive concept, this application provides a display panel, which is manufactured using the display panel manufacturing method provided in the foregoing embodiments, such as... Figure 4c or Figure 5c As shown, the display panel includes: a substrate 1, a display functional layer 2, multiple spaced-apart first electrodes 3, multiple photoelectric conversion layers 4, multiple second electrodes 5, and a conductive connection assembly 6. The display functional layer 2 is disposed on one side of the substrate 1. The multiple spaced-apart first electrodes 3 are disposed on the side of the display functional layer 2 away from the substrate 1. The multiple photoelectric conversion layers 4 are disposed on the side of the first electrodes 3 away from the display functional layer 2, and each photoelectric conversion layer 4 corresponds to one of the first electrodes 3. The multiple second electrodes 5 are disposed on the side of the photoelectric conversion layers 4 away from the first electrodes 3, and each second electrode 5 corresponds to one of the first electrodes 3, with the polarity of the second electrodes 5 being opposite to that of the first electrodes 3. The conductive connection assembly 6 is connected to both the first electrodes 3 and the second electrodes 5 adjacent to the first electrodes 3.

[0083] In this embodiment, a conductive connection component 6 is provided between the first electrode 3 and the adjacent second electrode 5 on the display panel that integrates the solar cell 100. This can reduce the contact resistance between the first electrode 3 and the adjacent second electrode 5 and improve the power generation efficiency of the solar cell 100 integrated in the display panel.

[0084] In some embodiments, such as Figure 4cAs shown, a first electrode and a second electrode adjacent to the first electrode are connected. This reduces the contact resistance between the first electrode and the second electrode adjacent to the first electrode, thereby improving the power generation efficiency of the display panel.

[0085] In some embodiments, such as Figure 5c As shown, the conductive connection component is connected to both the first electrode and the second electrode adjacent to the first electrode. The conductive connection component enables current conduction between the first electrode and the second electrode adjacent to the first electrode, reducing the contact resistance between them and improving the power generation efficiency of the display panel.

[0086] In some embodiments, such as Figure 6 or Figure 7 As shown, the display panel also includes a heat insulation layer 7. The heat insulation layer 7 is disposed on the side of the display functional layer 2 away from the substrate 1.

[0087] In some embodiments, the material of the heat insulation layer 7 includes silicon dioxide, silicon nitride, or silicon oxide.

[0088] In some embodiments, the display functional layer 2 includes an encapsulation layer. A first electrode 3 is disposed on the side of the encapsulation layer away from the substrate 1.

[0089] Based on the same inventive concept, this application provides a display device. This display device is a display panel manufactured using the method described in the foregoing embodiments. Therefore, this display device possesses all the features and advantages of the aforementioned display modules, which will not be repeated here.

[0090] It should be noted that the display device can be any device that displays images, whether moving (e.g., video) or fixed (e.g., still images), and whether it contains text or images. More specifically, the intended embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of images of a piece of jewelry), etc.

[0091] The above embodiments of this application can complement each other without causing conflict.

[0092] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0093] The terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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.

[0094] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0095] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0096] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for manufacturing a display panel, characterized by, The preparation method comprises: forming a display function layer on a substrate surface; forming a plurality of spaced first electrodes on a side of the display function layer away from the substrate; forming a plurality of corresponding photoelectric conversion layers on a side of the first electrodes away from the display function layer, the photoelectric conversion layers comprising a hole transport layer, an active layer and an electron transport layer arranged in layers; forming a plurality of corresponding second electrodes on a side of the photoelectric conversion layers away from the first electrodes, the second electrodes having a polarity opposite to that of the first electrodes; forming a conductive connection component between the plurality of second electrodes to connect the second electrodes in series; applying a voltage to the second electrodes to form a current short circuit between the second electrodes, thereby annealing the second electrodes and the adjacent photoelectric conversion layers; removing part of the conductive connection component to disconnect the second electrodes, and retaining the remaining conductive connection component, which is connected to the second electrodes and the first electrodes adjacent to the second electrodes, thereby integrating a plurality of solar cells on the surface of the display function layer.

2. The method of manufacturing a display panel according to claim 1, wherein The hole transport layer comprises a P-type semiconductor, the electron transport layer comprises an N-type semiconductor, and the active layer comprises an intrinsic semiconductor.

3. The method of manufacturing a display panel according to claim 1, wherein The second electrodes are formed on a side of the photoelectric conversion layers away from the first electrodes, the second electrodes having a polarity opposite to that of the first electrodes; forming a conductive connection component between the plurality of second electrodes to connect the second electrodes in series comprises: depositing a second electrode film on the surface of the photoelectric conversion layer, and performing patterned etching on the second electrode film to form a plurality of the second electrodes corresponding to the first electrodes, the second electrodes being connected to the adjacent first electrodes and having a polarity opposite to that of the first electrodes; and depositing a conductive connection component between adjacent second electrodes, the conductive connection component being connected between the corresponding second electrodes and the second electrodes adjacent to the corresponding second electrodes and the first electrodes, thereby connecting the second electrodes in series.

4. The method of manufacturing a display panel according to claim 1, wherein The second electrodes are formed on a side of the photoelectric conversion layers away from the first electrodes, the second electrodes having a polarity opposite to that of the first electrodes; forming a conductive connection component between the plurality of second electrodes to connect the second electrodes in series comprises: depositing a second electrode film on the surface of the photoelectric conversion layer, and performing patterned etching on the second electrode film to form a plurality of the second electrodes corresponding to the first electrodes, the second electrodes being not connected to the adjacent first electrodes and having a polarity opposite to that of the first electrodes; and depositing a conductive connection component between adjacent second electrodes, the conductive connection component being connected between the corresponding second electrodes and the second electrodes adjacent to the corresponding second electrodes, the first electrodes, thereby connecting the second electrodes in series.

5. The method of manufacturing a display panel according to claim 1, wherein The material of the second electrodes comprises a transparent conductive oxide.

6. The method of manufacturing a display panel according to claim 1, wherein Before forming the plurality of first electrodes on the side of the display function layer away from the substrate, the method further comprises: forming a heat insulation layer on the side of the display function layer away from the substrate.

7. A display panel prepared by the method of any one of claims 1 to 6. The method comprises: a substrate, a display function layer disposed on one side of the substrate; a plurality of first electrodes disposed on the side of the display function layer away from the substrate; a plurality of photoelectric conversion layers disposed on the side of the first electrodes away from the display function layer, each of the photoelectric conversion layers corresponding to one of the first electrodes; a plurality of second electrodes disposed on the side of the photoelectric conversion layers away from the first electrodes, each of the second electrodes corresponding to one of the first electrodes, the polarity of each of the second electrodes being opposite to that of the corresponding first electrode; a conductive connecting component connected between each of the first electrodes and the second electrode adjacent to the first electrode.

8. The display panel of claim 7, wherein, The first electrode and the second electrode adjacent to the first electrode are connected.

9. The display panel of claim 7, wherein, The conductive connecting component is connected between each of the first electrodes and the second electrode adjacent to the first electrode.

10. A display device, characterized by comprising: The method comprises preparing a display panel by a method for preparing a display panel as claimed in any one of claims 1 to 6.

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