WO2019037220A1 - 柔性盖板及其制作方法、柔性oled显示装置 - Google Patents

柔性盖板及其制作方法、柔性oled显示装置 Download PDF

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WO2019037220A1
WO2019037220A1 PCT/CN2017/106930 CN2017106930W WO2019037220A1 WO 2019037220 A1 WO2019037220 A1 WO 2019037220A1 CN 2017106930 W CN2017106930 W CN 2017106930W WO 2019037220 A1 WO2019037220 A1 WO 2019037220A1
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flexible substrate
flexible
ink
ink layer
thickness
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PCT/CN2017/106930
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English (en)
French (fr)
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赵宸
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武汉华星光电半导体显示技术有限公司
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Publication of WO2019037220A1 publication Critical patent/WO2019037220A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8721—Metallic sealing arrangements
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a flexible cover plate and a manufacturing method thereof, and a flexible OLED display device.
  • OLED Organic Light Emitting Diode
  • OLED Organic Light Emitting Diode
  • the area is full-color display and many other advantages, and is recognized by the industry as the most promising display device.
  • OLED displays do not require a backlight. They use a very thin coating of organic materials and a glass substrate. When there is current, these organic materials will emit light. The biggest advantage is that it can be made into a flexible product. Unlike glass covers for general rigid screens, flexible OLED displays use a flexible cover that can be bent.
  • FIG. 1 is a schematic structural view of a flexible cover 100 in the prior art, as shown in FIG. 1 , which mainly includes a flexible substrate (Base film) 110 and a hardened treatment layer disposed on the upper side of the flexible substrate 110 (Hard coating) 120.
  • an opaque ink layer 130 is further disposed on the peripheral edge of the back surface of the flexible substrate 110, so that the display layer region is formed by the ink layer 130.
  • the flexible substrate 110 is mainly made of a polymer material such as polyethylene terephthalate (PET) or polyimide (PI), and the thickness of the ink layer 130 is usually about 20 ⁇ m due to the back surface of the flexible substrate 110.
  • the ink layer 130 disposed thereon has a certain thickness, which forms a certain gap on the inner side of the ink layer 130.
  • FIG. 2 is a schematic structural diagram of a flexible OLED display device in the prior art.
  • the flexible OLED display device passes the OLED display panel 200 and the flexible cover plate through an Optical Clear Adhesive (OCA) 300.
  • OCA Optical Clear Adhesive
  • 100 is attached together, wherein the uppermost layer of the OLED display panel 200 is generally a polarizer layer, and the thickness of the optical transparent adhesive 300 is present due to a gap of about 20 ⁇ m between the ink layer 130 on the flexible cover 100 and the flexible substrate 110. It is necessary to thicken to 50-100 um to ensure that the flexible cover 100 is in close contact with the polarizer layer of the OLED display panel 200. At the same time, however, the thickness of the entire flexible OLED display device is greatly increased, which is obviously disadvantageous for the bending of the flexible OLED display device.
  • the object of the present invention is to provide a flexible cover plate, which can eliminate the gap caused by the ink layer, reduce the thickness of the flexible OLED display device, improve the bending resistance, and reduce the difficulty of fitting the flexible cover plate, thereby facilitating production.
  • the yield is improved.
  • Another object of the present invention is to provide a method for manufacturing a flexible cover plate, which can eliminate the gap caused by the ink layer, reduce the thickness of the flexible OLED display device, improve the bending resistance, and reduce the sticking of the flexible cover. The difficulty is combined to improve the production yield.
  • the difficulty of fitting the flexible cover plate is conducive to the improvement of the production yield.
  • the present invention provides a flexible cover plate comprising a first flexible substrate, a second flexible substrate and an ink layer disposed on the same side of the first flexible substrate, and another one disposed on the first flexible substrate Hardened layer on the side;
  • the ink layer includes a first ink zone and a second ink zone spaced apart, the second flexible substrate being filled between the first ink zone and the second ink zone.
  • the first ink zone and the second ink zone have the same thickness, and the surface of the second flexible substrate away from the first flexible substrate is flush with the surface of the ink layer away from the first flexible substrate.
  • the thickness of the second flexible substrate and the ink layer are both 10-25 ⁇ m.
  • the flexible cover plate further includes a third flexible substrate covering the second flexible substrate and the ink layer, the third flexible substrate being integrally formed with the second flexible substrate.
  • the materials of the second flexible substrate, the first flexible substrate, and the third flexible substrate are the same.
  • the ink layer has a thickness of 10 to 25 ⁇ m, and the sum of the thickness of the second flexible substrate and the thickness of the third flexible substrate is 20 to 50 ⁇ m.
  • the invention also provides a method for manufacturing a flexible cover plate, comprising the following steps:
  • Step S1 preparing a first flexible substrate
  • Step S2 forming a second flexible substrate and an ink layer on one side of the first flexible substrate, and forming a hardened layer on the other side of the first flexible substrate; wherein the ink layer comprises a first ink disposed at intervals And a second flexible substrate filled between the first ink zone and the second ink zone.
  • the specific process of forming the second flexible substrate and the ink layer in the step S2 is: first making a second flexible substrate on one side of the first flexible substrate, and then attaching or printing Forming a first ink zone and a second ink zone on a periphery of the second flexible substrate, and there is no space between the first ink zone and the second ink zone and the second flexible substrate;
  • the first ink zone and the second ink zone have the same thickness, and the surface of the second flexible substrate away from the first flexible substrate is flush with the surface of the ink layer away from the first flexible substrate;
  • the thickness of the second flexible substrate and the ink layer are both 10-25 ⁇ m.
  • the step S2 further includes: forming a third flexible substrate covering the second flexible substrate and the ink layer,
  • the specific process of forming the second flexible substrate, the ink layer and the third flexible substrate is: first forming a first ink region and a second ink region on one side of the first flexible substrate by attaching or printing, and then The same side of the first flexible substrate is integrally formed to form a second flexible substrate filled between the first ink zone and the second ink zone and a third flexible substrate covering the second flexible substrate and the ink layer;
  • the second flexible substrate, the first flexible substrate and the third flexible substrate are of the same material; the ink layer has a thickness of 10-25 ⁇ m, the thickness of the second flexible substrate and the thickness of the third flexible substrate The sum is 20-50 ⁇ m.
  • the present invention also provides a flexible OLED display device comprising the flexible cover plate as described above, an OLED panel disposed opposite the flexible cover plate, and between the flexible cover plate and the OLED panel. An optical adhesive layer bonded together; wherein the flexible cover is provided with an ink layer side facing the OLED panel.
  • the present invention provides a flexible cover plate comprising a first flexible substrate, a second flexible substrate, an ink layer, and a hardened layer, wherein the ink layer includes a first ink zone and a first interval a second ink substrate, the second flexible substrate being filled between the first ink region and the second ink region, thereby eliminating a gap caused by the ink layer on the first flexible substrate, so that during use, A thinner optical adhesive layer can be used to achieve a good bonding effect, thereby reducing the thickness of the flexible OLED display device, improving its bending resistance, and also reducing the difficulty of bonding the flexible cover plate, which is advantageous for production yield. Improvement.
  • the flexible cover of the present invention is manufactured by forming a second flexible substrate completely filled between the first ink zone and the second ink zone on one side of the first flexible substrate, thereby eliminating the ink layer
  • the gap caused by a flexible substrate so that a thinner optical adhesive layer can be used to achieve a good bonding effect during use, thereby reducing the thickness of the flexible OLED display device and improving its bending resistance.
  • the difficulty of fitting the flexible cover plate is also reduced, which is favorable for the improvement of the production yield.
  • the flexible OLED display device of the invention adopts the flexible cover plate described above, can eliminate the gap caused by the ink layer, reduce the thickness of the flexible OLED display device, improve the bending resistance, and also reduce the difficulty of fitting, which is beneficial to the fitting. Increased production yield.
  • FIG. 1 is a schematic structural view of a conventional flexible cover
  • FIG. 2 is a schematic structural view of a conventional flexible OLED display device
  • FIG. 3 is a schematic structural view of a first embodiment of a flexible cover according to the present invention.
  • FIG. 4 is a schematic structural view of a second embodiment of a flexible cover according to the present invention.
  • FIG. 5 is a schematic flow chart of a method for manufacturing a flexible cover according to the present invention.
  • Figure 6 is a schematic view showing a step S2 of the first embodiment of the method for manufacturing the flexible cover of the present invention
  • Figure 7 is a schematic view showing the step S2 of the second embodiment of the method for manufacturing the flexible cover of the present invention
  • FIG. 8 is a schematic structural view of a flexible OLED display device of the present invention.
  • FIG. 3 is a schematic structural view of a first embodiment of a flexible cover plate according to the present invention.
  • the flexible cover plate includes a first flexible substrate 11. a second flexible substrate 12 and an ink layer 13 disposed on the same side of the first flexible substrate 11, and a hard coating 14 disposed on the other side of the first flexible substrate 11;
  • the ink layer 13 includes a first ink zone 131 and a second ink zone 132 that are spaced apart, and the second flexible substrate 12 is filled between the first ink zone 131 and the second ink zone 132.
  • the material of the first flexible substrate 11 is a material resistant to bending, for example, polyethylene terephthalate (PET), polyimide (PI), etc., further, the The material of a flexible substrate 11 is preferably a polyimide material.
  • the second flexible substrate 12 is the same material as the first flexible substrate 11, and the material of the second flexible substrate 12 is preferably a polyimide material.
  • first ink zone 131 and the second ink zone 132 have the same thickness, and the second flexible substrate 12 is away from the surface of the first flexible substrate 11 and the ink layer 13 away from the first flexible substrate.
  • the surface of 11 is flush.
  • the thickness of the second flexible substrate 12 and the ink layer 13 are both 10-25 ⁇ m.
  • the thickness of the first flexible substrate 11 is determined according to requirements, and may be selected to be 20-50 ⁇ m.
  • the hardened layer 14 has a thickness of about 10 ⁇ m.
  • FIG. 4 is a schematic structural view of a second embodiment of a flexible cover according to the present invention.
  • the present embodiment is different from the first embodiment in that the flexible cover further includes a second cover.
  • the flexible substrate 12 and the third flexible substrate 15 of the ink layer 13 are integrally formed with the second flexible substrate 12.
  • the second flexible substrate 12, the first flexible substrate 11 and the third flexible substrate 15 are made of the same material; the ink layer 13 has a thickness of 10-25 ⁇ m, and the thickness of the second flexible substrate 12 is the same.
  • the sum of the thicknesses of the three flexible substrates 15 is 20-50 ⁇ m.
  • the flexible cover of the present invention eliminates the ink layer 13 by providing a second flexible substrate 12 completely filled between the first ink zone 131 and the second ink zone 132 on one side of the first flexible substrate 11.
  • the gap caused on the first flexible substrate 11 so that a thinner optical adhesive layer can be used to achieve a good bonding effect during use, thereby reducing the thickness of the flexible OLED display device and improving its bending resistance.
  • the folding performance also reduces the difficulty of fitting the flexible cover plate, which is beneficial to the improvement of the production yield.
  • the present invention further provides a method for manufacturing a flexible cover plate.
  • the first embodiment of the method for manufacturing the flexible cover plate of the present invention specifically includes the following steps:
  • step S1 the first flexible substrate 11 is fabricated.
  • the thickness of the first flexible substrate 11 is determined according to requirements, and may be selected to be 20-50 ⁇ m.
  • the material of the first flexible substrate 11 is a material resistant to bending, such as polyethylene terephthalate, polyimide, etc. Further, the material of the first flexible substrate 11 It is preferably a polyimide material.
  • Step S2 forming a second flexible substrate 12 and an ink layer 13 on one side of the first flexible substrate 11, and forming a hardened layer 14 on the other side of the first flexible substrate 11; wherein the ink layer 13 comprises The first ink zone 131 and the second ink zone 132 are spaced apart, and the second flexible substrate 12 is filled between the first ink zone 131 and the second ink zone 132.
  • the hardened layer 14 is formed by coating before forming the second flexible substrate 12 and the ink layer 13, and the hardened layer 14 has a thickness of about 10 ⁇ m.
  • the hardened layer 14 may also be formed after the second flexible substrate 12 or the ink layer 13 is formed, and the order of fabrication may be adjusted according to actual needs.
  • the specific process of forming the second flexible substrate 12 and the ink layer 13 is: firstly, making a first side on the side of the first flexible substrate 11. Two flexible substrates 12, then forming a first ink zone 131 and a second ink zone 132 on the periphery of the second flexible substrate 12 by attaching or printing, and the first ink zone 131 There is no space between the second ink zone 132 and the second flexible substrate 12.
  • first ink zone 131 and the second ink zone 132 have the same thickness, and the second flexible substrate 12 is away from the surface of the first flexible substrate 11 and the ink layer 13 away from the first flexible substrate.
  • the surface of 11 is flush.
  • the thickness of the second flexible substrate 12 and the ink layer 13 are both 10-25 ⁇ m.
  • the second flexible substrate 12 is the same material as the first flexible substrate 11, and the material of the second flexible substrate 12 is preferably a polyimide material.
  • the second embodiment of the manufacturing method of the flexible cover of the present invention is different from the first embodiment in that, as shown in FIG. 7, the step S2 further includes: forming the second flexible substrate 12 and a step of the third flexible substrate 15 of the ink layer 13,
  • the specific process of forming the second flexible substrate 12, the ink layer 13, and the third flexible substrate 15 is to first form the first ink region 131 and the second by attaching or printing on one side of the first flexible substrate 11.
  • the ink zone 132 is then integrally formed on the same side of the first flexible substrate 11 to form a second flexible substrate 12 filled between the first ink zone 131 and the second ink zone 132 and to cover the second flexible substrate 12 And a third flexible substrate 15 of the ink layer 13.
  • the materials of the second flexible substrate 12, the first flexible substrate 11 and the third flexible substrate 15 are the same; the thickness of the ink layer 13 is 10-25 ⁇ m, and the second flexible substrate 12 The sum of the thickness and the thickness of the third flexible substrate 15 is 20-50 ⁇ m.
  • the flexible cover of the present invention is fabricated by forming a second flexible substrate 12 completely filled between the first ink zone 131 and the second ink zone 132 on one side of the first flexible substrate 11, thereby eliminating the ink layer 13 a gap caused on the first flexible substrate 11, so that a thinner optical adhesive layer can be used to achieve a good bonding effect during use, thereby reducing the thickness of the flexible OLED display device and improving its resistance.
  • the bending performance also reduces the difficulty of fitting the flexible cover plate, which is beneficial to the improvement of the production yield.
  • the present invention further provides a flexible OLED display device including a flexible cover 10, an OLED panel 20 disposed opposite the flexible cover 10, and the flexible cover 10 and the OLED.
  • the optical adhesive layer 30 for bonding the two together between the panels 20; wherein the flexible cover 10 may adopt the first embodiment of the flexible cover, or the second embodiment of the flexible cover.
  • the flexible cover 10 is provided with the ink layer 13 side facing the OLED panel 20.
  • the OLED panel 20 includes a substrate substrate 21, and an OLED layer 22, an encapsulation layer 23, and a polarizer 24 disposed on the substrate substrate 21; wherein the OLED panel 20 is provided with a polarizer 24.
  • One side faces the flexible cover 10.
  • the flexible OLED display device of the present invention can eliminate the gap caused by the ink layer 13,
  • the thinner optical adhesive layer 30 can be used to achieve a good bonding effect, reduce the thickness of the flexible OLED display device, improve the bending resistance, and reduce the difficulty of bonding the flexible cover 10, which is advantageous for production.
  • the yield is improved.
  • the present invention provides a flexible cover plate comprising a first flexible substrate, a second flexible substrate, an ink layer, and a hardened layer, wherein the ink layer comprises a first ink zone and a second interval disposed at intervals In the ink zone, the second flexible substrate is filled between the first ink zone and the second ink zone, thereby eliminating the gap caused by the ink layer on the first flexible substrate, so that during use,
  • the use of a thinner optical adhesive layer can achieve a good bonding effect, thereby reducing the thickness of the flexible OLED display device, improving its bending resistance, and also reducing the difficulty of fitting the flexible cover plate, which is advantageous for production yield. improve.
  • the flexible cover of the present invention is manufactured by forming a second flexible substrate completely filled between the first ink zone and the second ink zone on one side of the first flexible substrate, thereby eliminating the ink layer
  • the gap caused by a flexible substrate so that a thinner optical adhesive layer can be used to achieve a good bonding effect during use, thereby reducing the thickness of the flexible OLED display device and improving its bending resistance.
  • the difficulty of fitting the flexible cover plate is also reduced, which is favorable for the improvement of the production yield.
  • the flexible OLED display device of the invention adopts the flexible cover plate described above, can eliminate the gap caused by the ink layer, reduce the thickness of the flexible OLED display device, improve the bending resistance, and also reduce the difficulty of fitting, which is beneficial to the fitting. Increased production yield.

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Abstract

一种柔性盖板（10）及其制作方法、柔性OLED显示装置。柔性盖板（10），包括第一柔性基底（11）、第二柔性基底（12）、油墨层（13）、及硬化层（14），其中，油墨层（13）包括间隔设置的第一油墨区（131）和第二油墨区（132），第二柔性基底（12）填充在第一油墨区（131）和第二油墨区（132）之间，从而消除了由油墨层（13）在第一柔性基底（11）上所导致的断差，这样在使用过程中，就能够使用更薄的光学胶层（30）便可达到良好的贴合效果，进而降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了柔性盖板（10）的贴合难度，利于生产良率的提高。

Description

柔性盖板及其制作方法、柔性OLED显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种柔性盖板及其制作方法、柔性OLED显示装置。
背景技术
有机发光二极管(Organic Light Emitting Diode，OLED)显示器具有自发光、驱动电压低、发光效率高、响应时间短、清晰度与对比度高、近180°视角、使用温度范围宽，可实现柔性显示与大面积全色显示等诸多优点，被业界公认为是最有发展潜力的显示装置。
OLED显示器与传统的液晶显示器(Liquid Crystal Display，LCD)相比，无需背光灯，采用非常薄的有机材料涂层和玻璃基板，当有电流通过时，这些有机材料就会发光，除此之外，其最大的优势还在于可做成柔性产品。与一般硬性屏幕的玻璃盖板不同，柔性OLED显示器所采用的是可弯折的柔性盖板。
图1为现有技术中一种柔性盖板100的结构示意图，如图1所示，其主要包括的柔性基底(Base film)110、及设置于柔性基底110上侧的硬化处理层(Hard coating)120，另外为了将显示区域表现出来，柔性基底110背面的四周边缘上还需设置不透光的油墨层130，从而由该油墨层130形成显示窗口区。其中所述柔性基底110主要采用聚对苯二甲酸乙二醇酯(PET)或聚酰亚胺(PI)等聚合物材料，所述油墨层130的厚度通常约为20μm，由于柔性基底110背面上设置的油墨层130具有一定厚度，这会在油墨层130的内侧形成一定的断差。
图2为现有技术中一种柔性OLED显示装置的结构示意图，如图2所示，该柔性OLED显示装置通过光学透明胶(Optical Clear Adhesive，OCA)300将OLED显示面板200与上述柔性盖板100贴合在一起，其中，OLED显示面板200的最上层通常为偏光片层，由于柔性盖板100上的油墨层130与柔性基底110之间存在约20μm的断差，光学透明胶300的厚度需要加厚至50-100um，才可以确保该柔性盖板100与OLED显示面板200的偏光片层紧密贴合。但与此同时，整个柔性OLED显示装置的厚度就会大大增加，这显然不利于柔性OLED显示装置的弯折。
发明内容
本发明的目的在于提供一种柔性盖板，可以消除由油墨层所导致的断差，降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时降低柔性盖板的贴合难度，利于生产良率的提高。
本发明的另一目的在于提供一种柔性盖板的制作方法，可以消除由油墨层所导致的断差，降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时降低柔性盖板的贴合难度，利于生产良率的提高。
本发明的又一目的在于提供一种柔性OLED显示装置，采用上述的柔性盖板，可以消除由油墨层所导致的断差，降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时降低柔性盖板的贴合难度，利于生产良率的提高。
为实现上述目的，本发明提供一种柔性盖板，包括第一柔性基底、设于所述第一柔性基底同一侧的第二柔性基底和油墨层、以及设于所述第一柔性基底另一侧的硬化层；
所述油墨层包括间隔设置的第一油墨区和第二油墨区，所述第二柔性基底填充在所述第一油墨区和第二油墨区之间。
可选地，所述第一油墨区和第二油墨区的厚度相同，所述第二柔性基底远离所述第一柔性基底的表面与所述油墨层远离所述第一柔性基底的表面平齐；
所述第二柔性基底及所述油墨层的厚度均为10-25μm。
可选地，所述柔性盖板还包括覆盖所述第二柔性基底和油墨层的第三柔性基底，所述第三柔性基底与所述第二柔性基底一体成型。
所述第二柔性基底、所述第一柔性基底和所述第三柔性基底的材料相同。
所述油墨层的厚度为10-25μm，所述第二柔性基底的厚度与第三柔性基底的厚度之和为20-50μm。
本发明还提供一种柔性盖板的制作方法，包括如下步骤：
步骤S1、制作第一柔性基底；
步骤S2、在所述第一柔性基底的一侧形成第二柔性基底和油墨层，在所述第一柔性基底的另一侧形成硬化层；其中，所述油墨层包括间隔设置的第一油墨区和第二油墨区，所述第二柔性基底填充在所述第一油墨区和第二油墨区之间。
可选地，所述步骤S2中形成第二柔性基底和油墨层的具体过程为：先在所述第一柔性基底的一侧制作第二柔性基底，然后通过贴附、或印刷的 方式在所述第二柔性基底的外围形成第一油墨区和第二油墨区，且所述第一油墨区和第二油墨区与所述第二柔性基底之间无间隔；
所述第一油墨区和第二油墨区的厚度相同，所述第二柔性基底远离所述第一柔性基底的表面与所述油墨层远离所述第一柔性基底的表面平齐；
所述第二柔性基底及所述油墨层的厚度均为10-25μm。
可选地，所述步骤S2还包括：形成覆盖所述第二柔性基底和油墨层的第三柔性基底的步骤，
形成第二柔性基底、油墨层和第三柔性基底的具体过程为：先在所述第一柔性基底的一侧通过贴附、或印刷的方式形成第一油墨区和第二油墨区，然后在所述第一柔性基底的同侧通过一体成型形成填充在第一油墨区和第二油墨区之间的第二柔性基底及覆盖所述第二柔性基底和油墨层的第三柔性基底；
所述第二柔性基底、所述第一柔性基底和所述第三柔性基底的材料相同；所述油墨层的厚度为10-25μm，所述第二柔性基底的厚度与第三柔性基底的厚度之和为20-50μm。
本发明还提供一种柔性OLED显示装置，包括如上所述的柔性盖板、与所述柔性盖板相对设置的OLED面板、以及设于所述柔性盖板与所述OLED面板之间将该两者粘结在一起的光学胶层；其中，所述柔性盖板设有油墨层一侧面向所述OLED面板。
本发明的有益效果：本发明提供的一种柔性盖板，包括第一柔性基底、第二柔性基底、油墨层、及硬化层，其中，所述油墨层包括间隔设置的第一油墨区和第二油墨区，所述第二柔性基底填充在所述第一油墨区和第二油墨区之间，从而消除了由油墨层在第一柔性基底上所导致的断差，这样在使用过程中，就能够使用更薄的光学胶层便可达到良好的贴合效果，进而降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了柔性盖板的贴合难度，利于生产良率的提高。本发明的柔性盖板的制作方法，通过在第一柔性基底的一侧形成完全填充在所述第一油墨区和第二油墨区之间的第二柔性基底，从而消除了由油墨层在第一柔性基底上所导致的断差，这样在使用过程中，就能够使用更薄的光学胶层便可达到良好的贴合效果，进而降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了柔性盖板的贴合难度，利于生产良率的提高。本发明的柔性OLED显示装置，采用上述的柔性盖板，可以消除由油墨层所导致的断差，降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了贴合难度，利于生产良率的提高。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为现有一柔性盖板的结构示意图；
图2现有一柔性OLED显示装置的结构示意图；
图3为本发明的柔性盖板的第一实施例的结构示意图；
图4为本发明的柔性盖板的第二实施例的结构示意图；
图5为本发明的柔性盖板的制作方法的流程示意图；
图6为本发明的柔性盖板的制作方法的第一实施例的步骤S2的示意图；
图7为本发明的柔性盖板的制作方法的第二实施例的步骤S2的示意图
图8为本发明的柔性OLED显示装置的结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
本发明首先提供一种柔性盖板，请参阅图3，图3为本发明的柔性盖板的第一实施例的结构示意图，本实施例中，所述柔性盖板包括第一柔性基底11、设于所述第一柔性基底11同一侧的第二柔性基底12和油墨层13、以及设于所述第一柔性基底11另一侧的硬化层(Hard coating)14；
所述油墨层13包括间隔设置的第一油墨区131和第二油墨区132，所述第二柔性基底12填充在所述第一油墨区131和第二油墨区132之间。
具体地，所述第一柔性基底11的材料为耐弯折的材料，例如，聚对苯二甲酸乙二醇酯(PET)、聚酰亚胺(PI)等材料，进一步地，所述第一柔性基底11的材料优选为聚酰亚胺材料。
具体地，所述第二柔性基底12与所述第一柔性基底11的材料相同，所述第二柔性基底12的材料优选为聚酰亚胺材料。
具体地，所述第一油墨区131和第二油墨区132的厚度相同，所述第二柔性基底12远离所述第一柔性基底11的表面与所述油墨层13远离所述第一柔性基底11的表面平齐。
具体地，所述第二柔性基底12及所述油墨层13的厚度均为10-25μm。
具体地，所述第一柔性基底11的厚度依需求而定，可选取在20-50μm。
具体地，所述硬化层14的厚度约为10μm。
请参阅图4，图4为本发明的柔性盖板的第二实施例的结构示意图，本实施例与第一实施例相比，其区别在于，所述柔性盖板还包括覆盖所述第二柔性基底12和油墨层13的第三柔性基底15，所述第三柔性基底15与所述第二柔性基底12一体成型。所述第二柔性基底12、所述第一柔性基底11和所述第三柔性基底15的材料相同；所述油墨层13的厚度为10-25μm，所述第二柔性基底12的厚度与第三柔性基底15的厚度之和为20-50μm。
本发明的柔性盖板，通过在第一柔性基底11的一侧设置完全填充在所述第一油墨区131和第二油墨区132之间的第二柔性基底12，从而消除了由油墨层13在第一柔性基底11上所导致的断差，这样在使用过程中，就能够使用更薄的光学胶层便可达到良好的贴合效果，进而降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了柔性盖板的贴合难度，利于生产良率的提高。
基于上述的柔性盖板，请参阅图5，本发明还提供一种柔性盖板的制作方法，本发明的柔性盖板的制作方法的第一实施例具体包括如下步骤：
步骤S1、制作第一柔性基底11。
具体地，所述第一柔性基底11的厚度依需求而定，可选取在20-50μm。
具体地，所述第一柔性基底11的材料为耐弯折的材料，例如，聚对苯二甲酸乙二醇酯、聚酰亚胺等材料，进一步地，所述第一柔性基底11的材料优选为聚酰亚胺材料。
步骤S2、在所述第一柔性基底11的一侧形成第二柔性基底12和油墨层13，在所述第一柔性基底11的另一侧形成硬化层14；其中，所述油墨层13包括间隔设置的第一油墨区131和第二油墨区132，所述第二柔性基底12填充在所述第一油墨区131和第二油墨区132之间。
具体地，所述硬化层14在形成第二柔性基底12和油墨层13之前通过涂布的方式形成，所述硬化层14的厚度约为10μm。除此之外，所述硬化层14也可以在形成第二柔性基底12、或油墨层13之后形成，其制作顺序可以依实际需求调整。
具体地，如图6所示，所述步骤S2中在形成硬化层14之后，形成第二柔性基底12和油墨层13的具体过程为：先在所述第一柔性基底11的一侧制作第二柔性基底12，然后通过贴附、或印刷的方式在所述第二柔性基底12的外围形成第一油墨区131和第二油墨区132，且所述第一油墨区131 和第二油墨区132与所述第二柔性基底12之间无间隔。
具体地，所述第一油墨区131和第二油墨区132的厚度相同，所述第二柔性基底12远离所述第一柔性基底11的表面与所述油墨层13远离所述第一柔性基底11的表面平齐。
具体地，所述第二柔性基底12及所述油墨层13的厚度均为10-25μm。
具体地，所述第二柔性基底12与所述第一柔性基底11的材料相同，所述第二柔性基底12的材料优选为聚酰亚胺材料。
本发明的柔性盖板的制作方法的第二实施例，与第一实施例相比，其区别在于，如图7所示，所述步骤S2还包括：形成覆盖所述第二柔性基底12和油墨层13的第三柔性基底15的步骤，
形成第二柔性基底12、油墨层13和第三柔性基底15的具体过程为：先在所述第一柔性基底11的一侧通过贴附、或印刷的方式形成第一油墨区131和第二油墨区132，然后在所述第一柔性基底11的同侧通过一体成型形成填充在第一油墨区131和第二油墨区132之间的第二柔性基底12及覆盖所述第二柔性基底12和油墨层13的第三柔性基底15。
具体地，所述第二柔性基底12、所述第一柔性基底11和所述第三柔性基底15的材料相同；所述油墨层13的厚度为10-25μm，所述第二柔性基底12的厚度与第三柔性基底15的厚度之和为20-50μm。
本发明的柔性盖板的制作方法，通过在第一柔性基底11的一侧形成完全填充在第一油墨区131和第二油墨区132之间的第二柔性基底12，从而消除了由油墨层13在第一柔性基底11上所导致的断差，这样在使用过程中，就能够使用更薄的光学胶层便可达到良好的贴合效果，进而降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了了柔性盖板的贴合难度，利于生产良率的提高。
基于上述柔性盖板，本发明还提供一种柔性OLED显示装置，包括柔性盖板10、与所述柔性盖板10相对设置的OLED面板20、以及设于所述柔性盖板10与所述OLED面板20之间将该两者粘结在一起的光学胶层30；其中，所述柔性盖板10可以采用上述柔性盖板的第一实施例，也可以采用上述柔性盖板的第二实施例，其具体技术特征在此不再赘述，所述柔性盖板10设有油墨层13一侧面向所述OLED面板20。
具体地，所述OLED面板20包括衬底基板21、以及依次设于所述衬底基板21上的OLED层22、封装层23及偏光片24；其中，所述OLED面板20设有偏光片24的一侧面向所述柔性盖板10。
本发明的柔性OLED显示装置，可以消除由油墨层13所导致的断差， 就能够使用更薄的光学胶层30便可达到良好的贴合效果，降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了了柔性盖板10的贴合难度，利于生产良率的提高。
综上所述，本发明提供的一种柔性盖板，包括第一柔性基底、第二柔性基底、油墨层、及硬化层，其中，所述油墨层包括间隔设置的第一油墨区和第二油墨区，所述第二柔性基底填充在所述第一油墨区和第二油墨区之间，从而消除了由油墨层在第一柔性基底上所导致的断差，这样在使用过程中，就能够使用更薄的光学胶层便可达到良好的贴合效果，进而降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了柔性盖板的贴合难度，利于生产良率的提高。本发明的柔性盖板的制作方法，通过在第一柔性基底的一侧形成完全填充在所述第一油墨区和第二油墨区之间的第二柔性基底，从而消除了由油墨层在第一柔性基底上所导致的断差，这样在使用过程中，就能够使用更薄的光学胶层便可达到良好的贴合效果，进而降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了柔性盖板的贴合难度，利于生产良率的提高。本发明的柔性OLED显示装置，采用上述的柔性盖板，可以消除由油墨层所导致的断差，降低柔性OLED显示装置的厚度，提升其耐弯折性能，同时也降低了贴合难度，利于生产良率的提高。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种柔性盖板，包括第一柔性基底、设于所述第一柔性基底同一侧的第二柔性基底和油墨层、以及设于所述第一柔性基底另一侧的硬化层；
    所述油墨层包括间隔设置的第一油墨区和第二油墨区，所述第二柔性基底填充在所述第一油墨区和第二油墨区之间。
  2. 如权利要求1所述的柔性盖板，其中，所述第一油墨区和第二油墨区厚度相同，所述第二柔性基底远离所述第一柔性基底的表面与所述油墨层远离所述第一柔性基底的表面平齐。
  3. 如权利要求1所述的柔性盖板，还包括覆盖所述第二柔性基底和油墨层的第三柔性基底，所述第三柔性基底与所述第二柔性基底一体成型。
  4. 如权利要求3所述的柔性盖板，其中，所述第二柔性基底、所述第一柔性基底和所述第三柔性基底的材料相同。
  5. 如权利要求2所述的柔性盖板，其中，所述第二柔性基底及所述油墨层的厚度均为10-25μm。
  6. 如权利要求3所述的柔性盖板，其中，所述油墨层的厚度为10-25μm，所述第二柔性基底的厚度与第三柔性基底的厚度之和为20-50μm。
  7. 一种柔性盖板的制作方法，包括如下步骤：
    步骤S1、制作第一柔性基底；
    步骤S2、在所述第一柔性基底的一侧形成第二柔性基底和油墨层，在所述第一柔性基底的另一侧形成硬化层；其中，所述油墨层包括间隔设置的第一油墨区和第二油墨区，所述第二柔性基底填充在所述第一油墨区和第二油墨区之间。
  8. 如权利要求7所述的柔性盖板的制作方法，其中，所述步骤S2中形成第二柔性基底和油墨层的具体过程为：先在所述第一柔性基底的一侧制作第二柔性基底，然后通过贴附、或印刷的方式在所述第二柔性基底的外围形成第一油墨区和第二油墨区，且所述第一油墨区和第二油墨区与所述第二柔性基底之间无间隔；
    所述第一油墨区和第二油墨区的厚度相同，所述第二柔性基底远离所述第一柔性基底的表面与所述油墨层远离所述第一柔性基底的表面平齐；
    所述第二柔性基底及所述油墨层的厚度均为10-25μm。
  9. 如权利要求7所述的柔性盖板的制作方法，其中，所述步骤S2中还包括：形成覆盖所述第二柔性基底和油墨层的第三柔性基底的步骤，
    形成第二柔性基底、油墨层和第三柔性基底的具体过程为：先在所述第一柔性基底的一侧通过贴附、或印刷的方式形成第一油墨区和第二油墨区，然后在所述第一柔性基底的同侧通过一体成型形成填充在第一油墨区和第二油墨区之间的第二柔性基底及覆盖所述第二柔性基底和油墨层的第三柔性基底；
    所述第二柔性基底、所述第一柔性基底和所述第三柔性基底的材料相同；所述油墨层的厚度为10-25μm，所述第二柔性基底的厚度与第三柔性基底的厚度之和为20-50μm。
  10. 一种柔性OLED显示装置，包括如权利要求1所述的柔性盖板、与所述柔性盖板相对设置的OLED面板、以及设于所述柔性盖板与所述OLED面板之间将该两者粘结在一起的光学胶层；其中，所述柔性盖板设有油墨层一侧面向所述OLED面板。
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CN109585674A (zh) * 2018-11-13 2019-04-05 武汉华星光电半导体显示技术有限公司 显示模组及其制作方法、电子装置
KR20200057853A (ko) * 2018-11-16 2020-05-27 삼성디스플레이 주식회사 표시 장치
CN109860431A (zh) * 2018-12-12 2019-06-07 武汉华星光电半导体显示技术有限公司 有机发光二极管(oled)面板及制作方法
CN111599268B (zh) 2019-02-20 2021-09-14 华为技术有限公司 柔性显示盖板、显示面板及显示装置
CN114953663B (zh) * 2019-03-29 2024-04-02 京东方科技集团股份有限公司 一种柔性盖板、显示装置及柔性盖板的制备方法
CN110379306A (zh) * 2019-06-10 2019-10-25 武汉华星光电半导体显示技术有限公司 一种可弯折显示面板的盖板、可弯折显示面板及显示装置
CN110634399B (zh) * 2019-08-22 2020-12-25 武汉华星光电半导体显示技术有限公司 一种柔性盖板、柔性显示装置及柔性盖板的制作方法
CN111554826A (zh) * 2020-05-11 2020-08-18 京东方科技集团股份有限公司 显示面板、盖板及其制备方法
CN111862808A (zh) * 2020-06-28 2020-10-30 京东方科技集团股份有限公司 显示盖板及其制备方法和柔性显示装置
CN111740030B (zh) * 2020-06-30 2022-11-08 上海天马微电子有限公司 显示面板、显示装置及显示面板的制作方法
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