WO2020107843A1 - 显示面板及其制作方法和显示装置 - Google Patents

显示面板及其制作方法和显示装置 Download PDF

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Publication number
WO2020107843A1
WO2020107843A1 PCT/CN2019/089088 CN2019089088W WO2020107843A1 WO 2020107843 A1 WO2020107843 A1 WO 2020107843A1 CN 2019089088 W CN2019089088 W CN 2019089088W WO 2020107843 A1 WO2020107843 A1 WO 2020107843A1
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Prior art keywords
display panel
anode
layer
panel according
manufacturing
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English (en)
French (fr)
Inventor
刘胜芳
黄莹
李雪原
朱平
吕磊
张义波
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Yungu Guan Technology Co Ltd
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Yungu Guan Technology Co Ltd
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Publication of WO2020107843A1 publication Critical patent/WO2020107843A1/zh
Priority to US16/941,957 priority Critical patent/US11404681B2/en
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/60—Forming conductive regions or layers, e.g. electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • H10K50/813—Anodes characterised by their shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/341—Short-circuit prevention

Definitions

  • the present application relates to a manufacturing method, in particular to a display panel, a manufacturing method thereof and a display device, which belong to the technical field of display.
  • OLED display is a promising flat panel display technology, which has self-luminous, simple structure, ultra-thin and thin, corresponding speed, wide viewing angle, low power consumption and achievable Flexible display and other characteristics, so at this stage OLED display has been favored by major display manufacturers, occupying an important position in the display field.
  • the driving voltage of the organic light emitting diode is higher and the current efficiency is lower, so the performance of the organic light emitting diode needs to be further improved.
  • the present application provides a display panel, a manufacturing method thereof, and a display device.
  • the method can effectively improve the current efficiency of the display panel and reduce the driving voltage of the display panel.
  • This application provides a method for manufacturing a display panel, including the following steps:
  • the pretreatment solution contains propylene glycol methyl ether with a mass fraction of 10-30% and water with 70-90%.
  • the present application also provides a display panel, the display panel including a pre-treated anode
  • the pretreatment includes the steps of coating the pretreatment solution on the anode and drying it into a gel layer, then removing the gel layer and drying the anode;
  • the pretreatment solution contains propylene glycol methyl ether with a mass fraction of 10-30% and water with 70-90%.
  • the display panel is manufactured by the method for manufacturing the display panel described above.
  • the conditions, processes, functions, etc. described for the method of manufacturing the display panel described above are also applicable to the display panel here, and will not be repeated here.
  • the present application also provides a flexible display device, including the above-mentioned display panel.
  • This application uses a special solution to coat the anode, which can effectively improve the current efficiency of the display panel and the current efficiency is greater than or equal to 16.7%, and can also improve the driving voltage of the display panel to further reduce the energy consumption of the display panel.
  • the current efficiency of the display panel can be greatly improved without changing other performance of the display panel , Will not affect other processes and conditions afterwards.
  • the application can also avoid the influence of the debris generated by the array substrate during the cutting process on the display effect of the screen body, effectively protect the cleanliness of the anode surface, further improve the working efficiency of the display panel, and extend the service life of the display panel .
  • FIG. 1 is a flowchart of a method for manufacturing a display panel of the present application.
  • FIG. 1 is a flowchart of a method for manufacturing a display panel of the present application.
  • FIG. 1 only exemplarily illustrates the method of the present application with an OLED display panel. The method includes the following steps:
  • S101 Provide a pretreatment solution containing a water-soluble organic protective agent, and use the pretreatment solution on the anode to form a solution layer covering the anode;
  • the pretreatment solution contains propylene glycol methyl ether with a mass fraction of 10-30% and water with 70-90%.
  • the anode in this application may be a common anode material, such as indium tin oxide (ITO), indium zinc oxide (IZO), tin dioxide (SnO 2 ), zinc oxide (ZnO) and other oxide transparent conductive materials and any of them combination.
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • SnO 2 tin dioxide
  • ZnO zinc oxide
  • the anode is formed on the array substrate.
  • the array substrate may include a base of glass or polymer material, and an array layer group formed on the base.
  • a thin film transistor ie, TFT
  • TFT thin film transistor
  • a hole injection layer, a hole transport layer, an electron blocking layer, a light emitting layer, a hole blocking layer, an electron transport layer, an electron injection layer, and a cathode are sequentially deposited above the anode. These are well known to those skilled in the art and will not be repeated here.
  • the anode before depositing other functional layers (such as a hole injection layer) on the anode, the anode needs to be pre-treated with a pre-treatment solution.
  • the pretreatment solution of this embodiment contains propylene glycol methyl ether with a mass fraction of 10-30% and water with 70-90%.
  • propylene glycol methyl ether is also called methyl-propylene glycol-methyl ether-propanol (CAS: 107-98-2).
  • the ratio of each component can be adjusted in the above range so that the viscosity of the pretreatment solution at 25° C. is 100-200 cp, thereby facilitating the efficient extension of the pretreatment solution on the anode afterwards.
  • a method of forming a solution layer covering the anode includes: applying a pretreatment solution on the anode to form a solution layer by one of spin coating, inkjet printing, and blade coating.
  • spin coating can be selected.
  • the low-speed liquid homogenization speed is 10-100 rpm/10s
  • the high-speed liquid homogenization speed is 100-1500 rpm/10s.
  • the solution layer is gradually formed by covering the anode with the pretreatment solution on the anode by rotating the turntable.
  • the speed of the turntable can be set to 10-150rpm/10s in the early stage of rotation, and the speed of the turntable can be gradually increased to 800-1500rpm/10s as the pretreatment solution is gradually covered on the anode.
  • the low-speed homogenization speed is 50 rpm/10s
  • the high-speed homogenization speed is 1000 rpm/10s.
  • the above coating speed can effectively ensure the coating uniformity of the pretreatment solution on the anode.
  • the solution layer is dried to make the solution layer a glue layer.
  • the solution layer may be dried by hot air drying or hot plate drying.
  • the appearance of the adhesive layer is in a molten state.
  • the adhesive layer In order to avoid the possibility of the internal insulation of the display panel caused by the adhesive layer, the adhesive layer needs to be removed after the solution layer is dried into the adhesive layer.
  • the adhesive layer when the thickness of the adhesive layer is 0.5-10 ⁇ m, the adhesive layer can be removed with a solvent.
  • pure water can be used to clean the glue layer, so that the glue layer is detached from the anode.
  • the adhesive layer is flushed with a pure water flow with a pressure of 2-7 Pa for 2-30 minutes, preferably, the flushing time is 10 minutes, so that the adhesive layer is removed.
  • the anode In order to avoid that the solvent used for removing the glue layer in S103 remains on the anode and negatively affects the performance of the display panel, the anode needs to be dried after the glue layer is removed.
  • hole injection layer After drying, vacuum injection, spin coating, or printing can be used to deposit hole injection layer, hole transport layer, electron blocking layer, luminescent layer, hole blocking layer, and electron transport layer directly on the anode.
  • An electron injection layer, a cathode, an encapsulation layer, and a cover plate to complete the preparation of the display panel.
  • the hole injection layer, the hole transport layer, the electron blocking layer, the light emitting layer, the hole blocking layer, the electron transport layer, and the electron injection layer can use common organic small molecules, organic macromolecules and polymers, and their The combination.
  • the cathode metals or alloys such as magnesium, silver, aluminum, aluminum-lithium, magnesium-indium, magnesium-silver, and any combination thereof can be used.
  • the TFT substrate under the anode needs to be cut and adjusted to meet the requirements of the device size afterwards.
  • some cut debris will be sputtered on the anode.
  • the debris will not only scratch the anode but also affect the deposition of the next functional layer. Therefore, when the anode surface in this application is covered with a glue layer, the cut debris will be sputtered on the glue layer, and the damage to the anode surface caused by the debris is avoided by avoiding the direct contact of the debris with the anode surface. And the debris on the glue layer will be removed together with the removal of the glue layer.
  • the manufacturing method of the display panel of the present application can not only effectively improve the current efficiency of the display panel and reduce the driving voltage, but also avoid possible damage to the anode, and further extend the service life of the display panel.
  • the volume of the pretreatment solution required to cover a unit square meter of anode is 2.3-3.5L.
  • This ratio can make the thickness of the gel layer obtained after the solution layer is dried to 0.5-10 ⁇ m. This thickness can not only avoid the problem that the hole is difficult to be effectively transferred to the light-emitting layer caused by the difficulty of removing the gel layer, but also make the anode fully processed. In order to effectively improve the current efficiency of the panel.
  • the solution layer may be dried by hot air drying or hot plate drying.
  • hot air drying the drying temperature is 35-65°C and the drying time is 2-6min.
  • hot plate drying method the drying temperature is 40-55°C and the drying time is 2-5min.
  • the anode may be dried by hot air drying or hot plate drying.
  • the drying temperature is 120-230° C.
  • the drying time is 30-120 min.
  • a hot air drying treatment method may be adopted, which is drying at 230° C. for 30 min.
  • the present application also provides a display panel including a pre-treated anode
  • the pretreatment includes the steps of drying the pretreatment solution covering the anode into a gel layer, then removing the gel layer and drying the anode;
  • the pretreatment solution includes propylene glycol methyl ether with a mass fraction of 10-30% and water with a content of 70-90%.
  • the method and function of the anode pretreatment with the pretreatment solution may be the same as the foregoing, and will not be repeated here.
  • the present application also provides a flexible display device, which can be an OLED display device and any product with a display function such as a TV, a digital camera, a mobile phone, a tablet computer, a smart watch, an e-book, a navigator, etc. including the OLED display device Or parts.
  • a flexible display device which can be an OLED display device and any product with a display function such as a TV, a digital camera, a mobile phone, a tablet computer, a smart watch, an e-book, a navigator, etc. including the OLED display device Or parts.
  • the flexible display device includes the aforementioned display panel.
  • the structure, function, and implementation of the display panel are the same as those described above, and are not repeated here.
  • the display panel manufacturing method of this implementation includes the following steps:
  • the anode adopts ITO material
  • the volume of the pretreatment solution required to cover the unit square meter of anode is 2.57L;
  • the low-speed liquid homogenization speed is 50 rpm/10s
  • the high-speed liquid homogenization speed is 1500 rpm/10s.
  • the drying temperature is 230 °C
  • drying time is 30min.
  • the pretreatment solution is composed of 10% propylene glycol methyl ether and 90% water according to the mass fraction.
  • the preparation method of the pretreatment solution is: add water to propylene glycol methyl ether at 25°C, and stir for 5 minutes until the mixture is uniform.
  • the viscosity (25°C) of the pretreatment solution was 140 cp measured by a Ubbelohde viscometer.
  • the manufacturing method of the display panel of this implementation includes the following steps:
  • the anode adopts ITO material
  • the volume of the pretreatment solution required to cover the unit square meter of anode is 2.72L;
  • the low-speed liquid homogenization speed is 100 rpm/10s
  • the high-speed liquid homogenization speed is 1400 rpm/10s.
  • the drying temperature is 230 °C
  • drying time is 30min.
  • the pretreatment solution is composed of 15% propylene glycol methyl ether and 85% water according to the mass fraction.
  • the preparation method of the pretreatment solution is: add water to propylene glycol methyl ether at 25°C, and stir for 5 minutes until the mixture is uniform.
  • the viscosity (25°C) of the pretreatment solution was 150cp measured by a Ubbelohde viscometer.
  • the manufacturing method of the display panel of this implementation includes the following steps:
  • the anode adopts ITO material
  • the volume of the pretreatment solution required to cover the unit square meter of anode is 2.86L;
  • the low-speed liquid leveling speed is 150 rpm/10s
  • the high-speed liquid leveling speed is 1300 rpm/10s.
  • the drying temperature is 230 °C
  • drying time is 30min.
  • the pretreatment solution is composed of 20% propylene glycol methyl ether and 80% water according to the mass fraction.
  • the preparation method of the pretreatment solution is: add water to propylene glycol methyl ether at 25°C, and stir for 5 minutes until the mixture is uniform.
  • the viscosity (25°C) of this pretreatment solution was 180 cp as measured by a Ubbelohde viscometer.
  • the manufacturing method of the display panel of this implementation includes the following steps:
  • the anode adopts ITO material
  • the volume of the pretreatment solution required to cover the unit square meter of anode is 2.9L;
  • the low-speed liquid leveling speed is 150 rpm/10s
  • the high-speed liquid leveling speed is 1300 rpm/10s.
  • the drying temperature is 230 °C
  • drying time is 30min.
  • the pretreatment solution is composed of 28% propylene glycol methyl ether and 72% water according to the mass fraction.
  • the preparation method of the pretreatment solution is: add water to propylene glycol methyl ether at 25°C, and stir for 5 minutes until the mixture is uniform.
  • the viscosity (25°C) of this pretreatment solution was 195 cp measured by a Ubbelohde viscometer.
  • the manufacturing method of the display panel of this implementation includes the following steps:
  • the anode adopts ITO material
  • the pretreatment solution is evenly coated on the anode to form a solution layer on the anode.
  • the volume of the pretreatment solution required to cover the unit square meter of anode is 3L;
  • the low-speed liquid leveling speed is 150 rpm/10s
  • the high-speed liquid leveling speed is 1100 rpm/10s.
  • the hot air drying method is used to dry the solution layer to obtain an adhesive layer.
  • the drying temperature is 60°C and the drying time is 5 min; the thickness of the adhesive layer is 3.9 ⁇ m.
  • the drying temperature is 230 °C
  • drying time is 30min.
  • the pretreatment solution is composed of 22% propylene glycol methyl ether and 78% water according to the mass fraction.
  • the preparation method of the pretreatment solution is: add water to propylene glycol methyl ether at 25°C, and stir for 5 minutes until the mixture is uniform.
  • the viscosity (25°C) of this pretreatment solution was 185cp measured by a Ubbelohde viscometer.
  • the manufacturing method of the display panel of this implementation includes the following steps:
  • the anode adopts ITO material
  • the volume of the pretreatment solution required to cover the unit square meter of anode is 3.5L;
  • the low-speed liquid leveling speed is 100 rpm/10s
  • the high-speed liquid leveling speed is 1000 rpm/10s.
  • the hot air drying method is used to dry the solution layer to obtain an adhesive layer.
  • the drying temperature is 50°C and the drying time is 6min; the thickness of the adhesive layer is 5.5 ⁇ m;
  • the drying temperature is 230 °C
  • drying time is 30min.
  • the pretreatment solution is composed of propylene glycol methyl ether 30% and water 70% according to the mass fraction.
  • the preparation method of the pretreatment solution is: add water to propylene glycol methyl ether at 25°C, and stir for 5 minutes until the mixture is uniform.
  • the viscosity (25°C) of this pretreatment solution was 230 cp measured by a Ubbelohde viscometer.
  • the manufacturing method of the display panel of this comparative example is basically the same as that of Embodiment 1, the only difference is that the anode in this comparative example has not undergone any pretreatment to obtain the display panel 7#.
  • the performance of the display panel 1#-6# obtained by the manufacturing method of the present application has a significant improvement.
  • the current efficiency is improved by 16.7-21.8%, and the driving voltage is significantly lower than that of the display panel 7# of Comparative Example 1. Therefore, the manufacturing method of the present application can effectively improve the current efficiency of the display panel, reduce the driving voltage, and reduce energy consumption.

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Abstract

本申请提供一种显示面板及其制作方法和显示装置，该制作方法包括以下步骤：1）提供含有水溶性有机保护剂的预处理溶液，在阳极上形成覆盖所述阳极的溶液层；2）将所述溶液层进行干燥处理，形成胶层；3）除去所述胶层；4）对所述阳极进行干燥处理；其中，所述预处理溶液包含质量分数10～30％的丙二醇甲醚、70～90％的水。该方法能够有效提高显示面板的电流效率并且降低显示面板的驱动电压。

Description

显示面板及其制作方法和显示装置 技术领域
本申请涉及一种制作方法，尤其涉及一种显示面板及其制作方法和显示装置，属于显示技术领域。
背景技术
有机发光二极管(Organic Light Emitting Diode，简称：OLED)显示器是一种极具发展前景的平板显示技术，它具有自发光、结构简单、超轻薄、相应速度快、宽视角、低功耗及可实现柔性显示等特性，因此现阶段OLED显示器得到了各大显示器厂家的青睐，在显示领域中占据着重要的地位。
而现有技术中，有机发光二极管的驱动电压较高且电流效率较低，因此有机发光二极管的性能还有待进一步的改善。
发明内容
本申请提供一种显示面板及其制作方法和显示装置，该方法能够有效提高显示面板的电流效率并且降低显示面板的驱动电压。
本申请提供一种显示面板的制作方法，包括以下步骤：
1)提供含有水溶性有机保护剂的预处理溶液，在阳极上使用所述预处理溶液形成覆盖所述阳极的溶液层；
2)将所述溶液层进行干燥处理，形成胶层；
3)除去所述胶层；
4)对所述阳极进行干燥处理；
其中，所述预处理溶液包含质量分数10～30％的丙二醇甲醚、70～90％的水。
本申请还提供一种显示面板，所述显示面板包括经过预处理的阳极；
所述预处理包括将预处理溶液覆盖在所述阳极上并干燥成胶层后，除去所述胶层并干燥所述阳极的步骤；
所述预处理溶液包含质量分数10～30％的丙二醇甲醚、70～90％的水。
在本申请的一个实施方案中，所述显示面板由上文所述显示面板的制作方法制得。针对上文所述显示面板的制作方法所述的条件、过程、功能等内容同样适用于此处的显示面 板，此处不再赘述。
本申请还提供一种柔性显示装置，包括上文所述的显示面板。
本申请利用特殊的溶液对阳极进行涂布处理，能够有效提升显示面板的电流效率并且电流效率的提升大于等于16.7％，同时还能够改善显示面板的驱动电压，以进一步降低显示面板的能源消耗。
本申请中，通过对阳极进行处理并且调整对阳极进行涂布处理的溶液组成、干燥温度、干燥时间等参数，可以使显示面板的电流效率得到极大提升，且不会改变显示面板的其他性能，也不会影响之后的其他工艺制程和条件。而且本申请还能避免阵列基板在切割加工过程中产生的碎屑对屏体显示效果的影响，有效保护了阳极表面的洁净度，进一步提升了显示面板的工作效率，延长了显示面板的使用寿命。
附图说明
图1为本申请显示面板制作方法流程图。
具体实施方式
图1为本申请显示面板制作方法流程图。图1仅以OLED显示面板对本申请的方法进行了示例性的说明。该方法包括以下步骤：
S101：提供含有水溶性有机保护剂的预处理溶液，在阳极上使用预处理溶液形成覆盖阳极的溶液层；
其中，预处理溶液包含质量分数10～30％的丙二醇甲醚、70-90％的水。
本申请中的阳极可以是常见的阳极材料，例如铟锡氧(ITO)、铟锌氧(IZO)、二氧化锡(SnO 2)、氧化锌(ZnO)等氧化物透明导电材料和它们的任意组合。
阳极形成在阵列基板。阵列基板可包括玻璃或聚合物材料的基底，以及形成在基底上的阵列层组。在阵列层组中形成有薄膜晶体管(即，TFT)，阳极与薄膜晶体管电连接。在阳极的上方依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层以及阴极。这些是本领域的技术人员公知的不再赘述。
在本实施例中，在对阳极进行其他功能层(例如空穴注入层)沉积之前，需要利用预处理溶液对阳极进行预处理。
本实施例的预处理溶液包含质量分数10～30％的丙二醇甲醚、70-90％的水。其中，丙 二醇甲醚也称为甲基-丙二醇-甲醚-丙醇(CAS：107-98-2)。
进一步地，可以通过在上述范围调节各个组分的比例，使得预处理溶液在25℃下的粘度为100-200cp，从而有利于之后预处理溶液在阳极上的高效延展。
在对上述预处理溶液进行制备时，需要在20-25℃下，将丙二醇甲醚加入至水中，搅拌5-20min后，得到预处理溶液。
S101中，形成覆盖阳极的溶液层的方法包括：通过旋涂、喷墨打印及刮刀涂布中的一种方式将预处理溶液涂布于阳极上形成溶液层。优选地，可以选择旋涂。
当选用旋涂的方式将预处理溶液形成覆盖阳极的溶液层时，低速匀液速度为10-100rpm/10s，高速匀液速度为100-1500rpm/10s。
具体地，将预处理溶液加至阳极表面后，通过使转盘旋转以使阳极上的预处理溶液逐渐均匀覆盖于阳极上形成溶液层。通常的，在旋转的初期可以使转盘的速度为10-150rpm/10s，随着预处理溶液在阳极上逐步覆盖后可以逐渐提高转盘速度至800-1500rpm/10s。优选地，低速匀液速度为50rpm/10s，高速匀液速度为1000rpm/10s。
上述涂布速度能够有效保证预处理溶液在阳极上的涂布均匀性。
当完成预处理溶液在阳极上的涂布后，在阳极上形成覆盖阳极的溶液层。
S102：将溶液层进行干燥处理，形成胶层。
S102中，通过对溶液层成进行干燥处理，使溶液层成为胶层。
在实施过程中，可以采用热风干燥或热板干燥的方式对溶液层进行干燥处理。
其中，胶层的表观为熔融态。
S103：除去胶层。
为了避免胶层可能会引起的显示面板内部绝缘的可能性，在将溶液层干燥为胶层后，还需要对胶层进行去除。
例如，当胶层的厚度为0.5-10μm时，可以利用溶剂对胶层进行去除。在另一种实施方式中，可以采用纯水清洗胶层，从而使胶层从阳极上脱离。具体地，利用压力为2-7Pa的纯水水流对胶层冲刷2-30min，优选地，冲刷时间为10min，从而使胶层被去除。
S104：对阳极进行干燥处理。
为了避免S103中的用于去除胶层的溶剂在阳极上残留对显示面板的性能造成消极影响，在将胶层清除后，还需要对阳极进行干燥处理。
当干燥后，可以采用真空热蒸镀、旋转涂敷、或打印等方法直接在阳极上依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层、 阴极、封装层以及盖板，从而完成显示面板的制备。
其中，空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层可以采用本领域常见的有机小分子、有机大分子和聚合物，以及它们的组合。阴极可以采用镁、银、铝、铝-锂、镁-铟、镁-银等金属或合金以及它们之间的任意组合。
通过对显示面板进行上述处理，不仅能够降低显示面板的驱动电压，还能够有效提高显示面板的电流效率，使显示面板的电流效率提升率大于等于16.7％，降低了功耗。
此外，由于在沉积其他功能层(例如空穴注入层)之前，需要对阳极下面的TFT基板进行切割调整以使其满足之后设备尺寸的要求。在切割过程中会有一些被切割掉的碎屑溅射在阳极上，该碎屑不仅会划伤阳极还会对下一步功能层的沉积造成影响。因此，当本申请中的阳极表面被胶层覆盖后，切割掉的碎屑会溅射在胶层上，通过避免碎屑与阳极表面的直接接触而杜绝了碎屑对阳极表面造成的损伤，并且胶层上的碎屑也会在清除胶层的同时被一并清除。
因此，本申请的显示面板的制作方法，不仅能够有效提升显示面板的电流效率，降低驱动电压，并且还能够避免阳极可能受到的损伤，进一步延长了显示面板的使用寿命。
进一步地，在S101中，覆盖单位平方米阳极所需的所述预处理溶液的体积为2.3-3.5L。该比例能够使溶液层干燥后得到的胶层的厚度为0.5-10μm，该厚度不仅能够避免胶层难以清除导致的空穴难以向发光层有效传递的问题的发生，还能够使得阳极被充分处理以有效提升面板的电流效率。
进一步地，在S102中可以采用热风干燥或热板干燥的方式对溶液层进行干燥处理。例如，若采用热风干燥的处理方式，干燥温度为35-65℃，干燥时间为2-6min。若采用热板干燥的处理方式，干燥温度为40-55℃，干燥时间为2-5min。
在S102中，需要严格控制干燥温度以及干燥时间，否则当水分蒸发过多时，不仅会导致胶层不易去除，还会使胶层失去对阳极的处理作用。
进一步地，在S104中，可以采用热风干燥或热板干燥的方式对阳极进行干燥处理。具体地，在热风干燥和热板干燥的处理过程中，干燥温度为120-230℃，干燥时间为30-120min。优选地，可以采用热风干燥的处理方式，在230℃下干燥30min。
本申请还提供一种显示面板，该显示面板包括经过预处理的阳极；
所述预处理包括将覆盖在阳极上的预处理溶液干燥成胶层后，除去胶层并干燥阳极的步骤；
所述预处理溶液包含质量分数10～30％的丙二醇甲醚、70～90％的水组成。
其中，阳极被预处理溶液进行预处理的方法及功能可与前述相同，此处不再赘述。
本申请还提供一种柔性显示装置，该柔性显示装置可以为OLED显示器件以及包括OLED显示器件的电视、数码相机、手机、平板电脑、智能手表、电子书、导航仪等任何具有显示功能的产品或者部件。
该柔性显示装置包括前述的显示面板。其中，显示面板的结构、功能及实现与前述相同，此处不再赘述。
以下，结合具体实施方式对本申请作进一步详细说明。
实施例1
本实施的显示面板制作方法，包括以下步骤：
1、在基底上依次制作阵列层组和阳极。阳极采用ITO材料；
2、利用旋涂方式，将预处理溶液均匀涂布在阳极上，在阳极上形成溶液层；
其中，覆盖单位平方米阳极所需的预处理溶液的体积为2.57L；
在旋涂过程中，低速匀液速度为50rpm/10s，高速匀液速度为1500rpm/10s。
3、利用热板干燥方式对溶液层进行干燥处理，得到胶层。干燥温度为40℃，干燥时间为5min；该胶层的厚度为2.5μm。
4、胶层形成后，采用水压为5Pa的水流对胶层进行冲刷以去除胶层；冲刷时间为10min。
5、将胶层清除后，利用热板干燥方式对阳极进行干燥处理；
其中，干燥温度为230℃，干燥时间为30min。
6、采用真空热蒸镀的方法直接在阳极上依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层、阴极、封装层以及盖板，得到本实施例的显示面板1#。
在本实施例中，预处理溶液按照质量分数由丙二醇甲醚10％，水90％组成。
该预处理溶液的制备方法为：在25℃下，将水加入丙二醇甲醚中，搅拌5min至混合均匀。
经乌氏粘度计测量，该预处理溶液的粘度(25℃)为140cp。
实施例2
本实施的显示面板的制作方法，包括以下步骤：
1、在基底上依次制作阵列层组和阳极。阳极采用ITO材料；
2、利用旋涂方式，将预处理溶液均匀涂布在阳极上，在阳极上形成溶液层；
其中，覆盖单位平方米阳极所需的预处理溶液的体积为2.72L；
在旋涂过程中，低速匀液速度为100rpm/10s，高速匀液速度为1400rpm/10s。
3、利用热板干燥方式对溶液层进行干燥处理，得到胶层。干燥温度为40℃，干燥时间为5min；该该胶层的厚度为3μm。
4、胶层形成后，采用水压为5Pa的水流对胶层进行冲刷以去除胶层；冲刷时间为12min。
5、将胶层清除后，利用热板干燥方式对阳极进行干燥处理；
其中，干燥温度为230℃，干燥时间为30min。
6、采用真空热蒸镀的方法直接在阳极上依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层、阴极、封装层以及盖板，得到本实施例的显示面板2#。
在本实施例中，预处理溶液按照质量分数由丙二醇甲醚15％，水85％组成。
该预处理溶液的制备方法为：在25℃下，将水加入丙二醇甲醚中，搅拌5min至混合均匀。
经乌氏粘度计测量，该预处理溶液的粘度(25℃)为150cp。
实施例3
本实施的显示面板的制作方法，包括以下步骤：
1、在基底上依次制作阵列层组和阳极。阳极采用ITO材料；
2、利用旋涂方式，将预处理溶液均匀涂布在阳极上，在阳极上形成溶液层；
其中，覆盖单位平方米阳极所需的预处理溶液的体积为2.86L；
在旋涂过程中，低速匀液速度为150rpm/10s，高速匀液速度为1300rpm/10s。
3、利用热板干燥方式对溶液层进行干燥处理，得到胶层。干燥温度为40℃，干燥时间为5min；该胶层的厚度为3.5μm。
4、胶层形成后，采用水压为5Pa的水流对胶层进行冲刷以去除胶层；冲刷时间为15min。
5、将胶层清除后，利用热板干燥方式对阳极进行干燥处理；
其中，干燥温度为230℃，干燥时间为30min。
6、采用真空热蒸镀的方法直接在阳极上依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层、阴极、封装层以及盖板，得到本 实施例的显示面板3#。
在本实施例中，预处理溶液按照质量分数由丙二醇甲醚20％，水80％组成。
该预处理溶液的制备方法为：在25℃下，将水加入丙二醇甲醚中，搅拌5min至混合均匀。
经乌氏粘度计测量，该预处理溶液的粘度(25℃)为180cp。
实施例4
本实施的显示面板的制作方法，包括以下步骤：
1、在基底上依次制作阵列层组和阳极。阳极采用ITO材料；
2、利用旋涂方式，将预处理溶液均匀涂布在阳极上，在阳极上形成溶液层；
其中，覆盖单位平方米阳极所需的预处理溶液的体积为2.9L；
在旋涂过程中，低速匀液速度为150rpm/10s，高速匀液速度为1300rpm/10s。
3、利用热板干燥方式对溶液层进行干燥处理，得到胶层。干燥温度为40℃，干燥时间为5min；该胶层的厚度为3.5μm；
4、胶层形成后，采用水压为7Pa的水流对胶层进行冲刷以去除胶层；冲刷时间为10min。
5、将胶层清除后，利用热板干燥方式对阳极进行干燥处理；
其中，干燥温度为230℃，干燥时间为30min。
6、采用真空热蒸镀的方法直接在阳极上依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层、阴极、封装层以及盖板，得到本实施例的显示面板4#。
在本实施例中，预处理溶液按照质量分数由丙二醇甲醚28％，水72％。
该预处理溶液的制备方法为：在25℃下，将水加入丙二醇甲醚中，搅拌5min至混合均匀。
经乌氏粘度计测量，该预处理溶液的粘度(25℃)为195cp。
实施例5
本实施的显示面板的制作方法，包括以下步骤：
1、在基底上依次制作阵列层组和阳极。阳极采用ITO材料；
2、利用旋涂方式，将预处理溶液均匀涂布在阳极上，在阳极上形成溶液层。
覆盖单位平方米阳极所需的预处理溶液的体积为3L；
在旋涂过程中，低速匀液速度为150rpm/10s，高速匀液速度为1100rpm/10s。
3、利用热风干燥方式对溶液层进行干燥处理，得到胶层。干燥温度为60℃，干燥时间为5min；该胶层的厚度为3.9μm。
4、胶层形成后，采用水压为2Pa的水流对胶层进行冲刷以去除胶层；冲刷时间为20min。
5、将胶层清除后，利用热板干燥方式对阳极进行干燥处理；
其中，干燥温度为230℃，干燥时间为30min。
6、采用真空热蒸镀的方法直接在阳极上依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层、阴极、封装层以及盖板，得到本实施例的显示面板5#。
在本实施例中，预处理溶液按照质量分数由丙二醇甲醚22％，水78％组成。
该预处理溶液的制备方法为：在25℃下，将水加入丙二醇甲醚中，搅拌5min至混合均匀。
经乌氏粘度计测量，该预处理溶液的粘度(25℃)为185cp。
实施例6
本实施的显示面板的制作方法，包括以下步骤：
1、在基底上依次制作阵列层组和阳极。阳极采用ITO材料；
2、利用旋涂方式，将预处理溶液均匀涂布在阳极上，在阳极上形成溶液层；
其中，覆盖单位平方米阳极所需的预处理溶液的体积为3.5L；
在旋涂过程中，低速匀液速度为100rpm/10s，高速匀液速度为1000rpm/10s。
3、利用热风干燥方式对溶液层进行干燥处理，得到胶层。干燥温度为50℃，干燥时间为6min；该胶层的厚度为5.5μm；
4、胶层形成后，采用水压为5Pa的水流对胶层进行冲刷以去除胶层；冲刷时间为20min。
5、将胶层清除后，利用热板干燥方式对阳极进行干燥处理；
其中，干燥温度为230℃，干燥时间为30min。
6、采用真空热蒸镀的方法直接在阳极上依次沉积空穴注入层、空穴传输层、电子阻挡层、发光层、空穴阻挡层、电子传输层、电子注入层、阴极、封装层以及盖板，得到本实施例的显示面板6#。
预处理溶液按照质量分数由丙二醇甲醚30％，水70％组成。
该预处理溶液的制备方法为：在25℃下，将水加入丙二醇甲醚中，搅拌5min至混合 均匀。
经乌氏粘度计测量，该预处理溶液的粘度(25℃)为230cp。
对照例1
本对照例的显示面板的制作方法与实施例1基本相同，唯一不同的是本对照例中的阳极没有经过任何预处理，得到显示面板7#。
试验例
对上述实施例1#-6#的显示面板以及对照例7#的显示面板在要求亮度为10000cd/㎡时，采用PR705光谱扫描色度计对以下参数进行测试，结果见表1：
1、驱动电压
2、电流效率
3、CIE-x
4、CIE-y
5、EL峰
表1
Figure PCTCN2019089088-appb-000001
由表1可知：相较于对照例，本申请制作方法得到的显示面板1#-6#的性能具有显著的提升。例如，本申请制作方法得到的显示面板1#-6#中，电流效率提升了16.7-21.8％，并且驱动电压明显低于对照例1的显示面板7#的驱动电压。因此本申请的制作方法能够有效提高显示面板的电流效率，降低驱动电压，降低能耗。

Claims (20)

  1. 一种显示面板的制作方法，包括以下步骤：
    1)提供阳极和含有水溶性有机保护剂的预处理溶液，在所述阳极上使用所述预处理溶液形成覆盖所述阳极的溶液层；
    2)将所述溶液层进行干燥处理，形成胶层；
    3)除去所述胶层；
    4)对所述阳极进行干燥处理；
    其中，所述预处理溶液包含质量分数10～30％的丙二醇甲醚、70～90％的水。
  2. 根据权利要求1所述的显示面板的制作方法，其中，25℃下，所述预处理溶液的粘度为100-200cp。
  3. 根据权利要求2所述的显示面板的制作方法，其中，所述胶层的厚度为0.5-10μm。
  4. 根据权利要求3所述的显示面板的制作方法，其中，步骤2)中，所述干燥处理的温度为35-65℃，时间为2-6min。
  5. 根据权利要求4所述的显示面板的制作方法，其中，步骤2)中，所述干燥处理的温度为40-55℃，时间为2-5min。
  6. 根据权利要求4或5所述的显示面板的制作方法，其中，步骤3)中，采用压力为2-7Pa的水流冲刷所述胶层，以除去所述胶层，或利用溶剂除去所述胶层。
  7. 根据权利要求6所述的显示面板的制作方法，其中，步骤1)中，覆盖单位平方米阳极所需的所述预处理溶液的体积为2.3-3.5L。
  8. 根据权利要求6所述的显示面板的制作方法，其中，步骤4)中，所述干燥处理的温度为120-230℃，时间为30-120min。
  9. 根据权利要求1所述的显示面板的制作方法，其中，所述形成覆盖所述阳极的溶液层包括：通过旋涂、喷墨打印及刮刀涂布中的任一种将所述预处理溶液涂布于所述阳极上形成所述溶液层。
  10. 根据权利要求9所述的显示面板的制作方法，其中，通过旋涂将预处理溶液涂布于阳极上形成溶液层，其中采用10-150rpm/10s的低速匀液速度和/或150-1500rpm/10s的高速匀液速度进行。
  11. 一种显示面板，包括经过预处理的阳极；
    所述预处理包括将预处理溶液覆盖在所述阳极上并干燥成胶层后，除去所述胶层并干燥所述阳极的步骤；
    所述预处理溶液包含质量分数10～30％的丙二醇甲醚、70～90％的水。
  12. 根据权利要求11所述的显示面板，其中，25℃下，所述预处理溶液的粘度为100-200cp。
  13. 根据权利要求11所述的显示面板，其中，所述胶层的厚度为0.5-10μm。
  14. 根据权利要求11所述的显示面板，其中，干燥成胶层的温度为35-65℃，时间为2-6min。
  15. 根据权利要求14所述的显示面板，其中，干燥成胶层的温度为40-55℃，时间为2-5min。
  16. 根据权利要求11所述的显示面板，其中，除去所述胶层是通过采用压力为2-7Pa的水流冲刷所述胶层而实现或利用溶剂而实现。
  17. 根据权利要求11所述的显示面板，其中，覆盖单位平方米阳极所需的所述预处理溶液的体积为2.3-3.5L。
  18. 根据权利要求11所述的显示面板，其中，干燥所述阳极的温度为120-230℃，时间为30-120min。
  19. 根据权利要求11所述的显示面板，其中，通过旋涂将预处理溶液涂布于阳极上形成溶液层，其中采用10-150rpm/10s的低速匀液速度和/或150-1500rpm/10s的高速匀液速度进行。
  20. 一种柔性显示装置，包括权利要求11-19中任一项所述的显示面板。
PCT/CN2019/089088 2018-11-27 2019-05-29 显示面板及其制作方法和显示装置 Ceased WO2020107843A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030038037A1 (en) * 2000-05-01 2003-02-27 International Business Machines Corporation Electroplating apparatus and four mask TFT array process with electroplated metal
CN101037556A (zh) * 2006-03-16 2007-09-19 株式会社东进世美肯 用于保护膜的导电涂层组合物及用其形成涂层的方法
CN108806990A (zh) * 2018-06-12 2018-11-13 湖北文理学院 基于Ⅱ型CdSe/CdTe量子阱的高效光阳极及其制备方法
CN109599506A (zh) * 2018-11-27 2019-04-09 云谷（固安）科技有限公司 显示面板及其制作方法和显示装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0316116A (pt) * 2002-11-14 2005-09-27 Elisha Holding Llc Processo para aplicar um revestimento protetor em múltiplas camadas a um substrato tendo uma superfìcie eletricamente condutiva, e, artigo resistente à corrosão
JP3735361B2 (ja) * 2003-08-07 2006-01-18 日東電工株式会社 光学フィルムの製造方法、それにより得られた光学フィルム、液晶パネルおよび液晶表示装置
KR20050017169A (ko) * 2003-08-08 2005-02-22 삼성에스디아이 주식회사 애노드 표면 개질층을 사용하는 유기 전계 발광 소자
TWI337187B (en) * 2004-11-15 2011-02-11 Lg Chemical Ltd Biaxial-optical polynorbornene-based film and method of manufacturing the same, integrated optical compensation polarizer having the film and method of manufacturing the polarizer, and liquid crystal display panel containing the film and/or polarizer
US20070256709A1 (en) * 2006-04-29 2007-11-08 Quanyuan Shang Methods and apparatus for operating an inkjet printing system
JP2008218777A (ja) * 2007-03-06 2008-09-18 Bridgestone Corp 光透過性電磁波シールド材の製造方法
CN104600221A (zh) 2015-01-09 2015-05-06 上海大学 Ito玻璃表面的处理方法
CN104576968A (zh) 2015-02-10 2015-04-29 京东方科技集团股份有限公司 一种oled器件及其制备方法、显示基板和显示装置
KR101878341B1 (ko) * 2016-11-29 2018-07-13 울산과학기술원 양자점 발광 다이오드, 및 상기 양자점 발광 다이오드의 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030038037A1 (en) * 2000-05-01 2003-02-27 International Business Machines Corporation Electroplating apparatus and four mask TFT array process with electroplated metal
CN101037556A (zh) * 2006-03-16 2007-09-19 株式会社东进世美肯 用于保护膜的导电涂层组合物及用其形成涂层的方法
CN108806990A (zh) * 2018-06-12 2018-11-13 湖北文理学院 基于Ⅱ型CdSe/CdTe量子阱的高效光阳极及其制备方法
CN109599506A (zh) * 2018-11-27 2019-04-09 云谷（固安）科技有限公司 显示面板及其制作方法和显示装置

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