WO2020124443A1 - 一种柔性屏幕 - Google Patents

一种柔性屏幕 Download PDF

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Publication number
WO2020124443A1
WO2020124443A1 PCT/CN2018/122126 CN2018122126W WO2020124443A1 WO 2020124443 A1 WO2020124443 A1 WO 2020124443A1 CN 2018122126 W CN2018122126 W CN 2018122126W WO 2020124443 A1 WO2020124443 A1 WO 2020124443A1
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WIPO (PCT)
Prior art keywords
magnetic material
magnetic
flexible screen
layer
adhesive layer
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Ceased
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PCT/CN2018/122126
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English (en)
French (fr)
Inventor
王帅
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Application filed by Shenzhen Royole Technologies Co Ltd filed Critical Shenzhen Royole Technologies Co Ltd
Priority to PCT/CN2018/122126 priority Critical patent/WO2020124443A1/zh
Priority to CN201880095900.5A priority patent/CN112640119A/zh
Publication of WO2020124443A1 publication Critical patent/WO2020124443A1/zh
Anticipated expiration legal-status Critical
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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
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants

Definitions

  • the present application relates to the field of flexible display technology, in particular to a flexible screen.
  • the flexible display screen is a flexible display device made of flexible materials, which includes electronic paper, a flexible liquid crystal display, and a flexible organic electroluminescent OLED (Organic Light-Emitting Diode, OLED) device.
  • Flexible display screens have important applications in the field of display and lighting due to their advantages of light weight, small size, and thinness.
  • the layered structure of the OLED display has a flexible screen that can be bent and wound to form corresponding flexibility shape.
  • the inventor found that when the flexible screen is repeatedly bent, folded, or tried to be deformed by other methods, the structure of the flexible screen will be caused by the temperature, humidity and bending fatigue performance of the use environment. Unstable, easy to fall off between the layers, resulting in damage to the screen.
  • the present application aims to provide a flexible screen and a flexible device to solve the technical problem that the flexible screen is prone to damage when repeatedly bent and wound.
  • a technical solution adopted by the embodiments of the present application is: to provide a flexible screen, including: a substrate, the substrate includes an adhesive surface; an organic light-emitting unit, the organic light-emitting unit and the bonding The surface is bonded by a first adhesive layer formed by a first optical glue, a first magnetic material is added to the first optical glue; a cover plate, the cover plate and the organic light emitting unit are formed by a second optical glue A second adhesive layer is bonded, the second adhesive layer is away from the bonding surface, and a second magnetic material, the first magnetic material and the second magnetic material are added to the second optical glue The magnetism is the opposite.
  • the first adhesive layer has a first curved portion
  • the second adhesive layer has a second curved portion
  • the first magnetic material is added on the first curved portion
  • the second A magnetic material is added on the second bent portion.
  • the magnetic attractive force formed between the first magnetic material and the second magnetic material is controllable.
  • the magnetic material is one or more of the following materials: cobalt, titanium, zinc oxide, and neodymium iron boron.
  • an ink layer is provided on the periphery of the cover plate facing the organic light-emitting unit, the ink layer covers a peripheral wiring area of the cover plate, and a third magnetic material is added to the ink layer, the A magnetic adhesive layer is provided on the periphery of the substrate facing the organic light-emitting unit, and a fourth magnetic material is added in the magnetic adhesive layer; the magnetic properties of the third magnetic material and the fourth magnetic material are opposite.
  • the ink layer is disposed opposite to the magnetic adhesive layer.
  • the substrate is bonded to the organic light emitting unit through the first optical glue and the magnetic bonding layer; the cover plate is connected to the organic light emitting layer and the organic layer through the second optical glue The light emitting unit is bonded.
  • the magnetic adhesive layer is a magnetic adhesive strip or a magnetic film.
  • the magnetic adhesive strip is etched with a preset pattern.
  • the organic light-emitting unit includes: a display layer, a polarizing layer, and a touch layer, and a third adhesive layer formed by a third optical glue is bonded between the display layer and the polarizing layer, and the first A third magnetic material is added in the third optical glue; a fourth adhesive layer formed by a fourth optical glue is bonded between the polarizing layer and the touch layer, and a sixth magnetic material is added in the fourth optical glue Material; the magnetic properties of the fifth magnetic material and the sixth magnetic material are opposite.
  • the flexible screen provided by the embodiment of the present application improves the bending performance of the flexible screen by adding a magnetic material in the adhesive layer formed by the optical glue, on the one hand, the service life of the flexible screen is longer, on the other hand, the flexible screen has Larger curvature can adapt to more complex curved structures.
  • FIG. 1 is a schematic structural diagram of a flexible screen provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the force situation of the flexible screen in FIG. 1 in a bent state
  • FIG. 3 is a schematic structural view of the organic light-emitting unit in FIG. 1;
  • FIG. 4 is a schematic structural diagram of a flexible screen provided by another embodiment of the present application.
  • FIG. 5a is a schematic structural view of the ink layer and the cover plate in FIG. 4 from another perspective;
  • FIG. 5b is a schematic structural view of the magnetic adhesive layer and the substrate of FIG. 4 from another perspective.
  • Traditional flexible screens have high flexibility, and can be rolled to form a cylinder or bent into a non-planar shape to improve portability or to be used for specific display purposes.
  • a flexible screen usually includes a flexible substrate, a light-emitting unit, and a flexible cover layer stacked in sequence, where the flexible substrate serves as a support structure for the flexible screen and is provided at the bottom of the flexible screen to provide corresponding support for the light-emitting unit and the flexible cover plate
  • the flexible cover is used as the protective structure of the flexible screen, and the cover is placed at the top of the flexible screen.
  • the light-emitting unit has different functional layers to realize light emission according to different designs or needs.
  • the flexible substrate, the light-emitting unit and the flexible cover plate of the flexible screen, and the functional layers of the light-emitting unit are generally bonded by forming an adhesive layer with optical glue. Since the rigidity of the optical glue structure is much smaller than the rigidity of the flexible substrate, the light-emitting unit and the flexible cover plate, when the flexible screen is frequently folded, wound or otherwise deformed, at the bending and folding positions of the flexible screen, the above The stiffness and resilience of the layer, as well as the stress concentration during bending and winding, can easily cause the optical glue to fall off and cause delamination of each structural layer.
  • the embodiment of the present application is to improve the adhesive layer formed by the optical adhesive.
  • the flexible screen provided by the embodiment of the present application can well improve the performance of the adhesive layer easy to fall off, and improve the flexible screen in bending, winding or other Reliability under deformation.
  • FIG. 1 is a schematic structural diagram of the flexible screen 200 provided by the embodiment of the present application.
  • the flexible screen 200 is shown in a bent state.
  • the flexible screen 200 can also be folded and rolled into other suitable shapes.
  • the flexible screen 200 includes a substrate 21, a first adhesive layer 22, an organic light emitting unit 23, a second adhesive layer 24, and a cover 25.
  • the substrate 21 is provided as a base at the bottom of the flexible screen 200 to provide support for the flexible screen 200. It includes a bonding surface 211 shown in FIG. 1.
  • the substrate 21 may be a transparent substrate or a flexible substrate that meets a preset light transmittance standard, which is prepared from a specific base material, and has a flexible film layer that has a thickness and strength that meet the requirements for use.
  • the substrate 21 can be prepared by selecting any type of polymer material according to actual needs.
  • the polymer material may be selected from polyethylene terephthalate, polyethylene naphthalate, polyimide, polyethersulfone resin, polyethylene, polystyrene, poly Any one or more of carbonate, polyurethane, or silicone rubber.
  • the flexible substrate formed by using the above polymer has better flexibility.
  • the organic light emitting unit 23 and the substrate 21 are bonded by a first adhesive layer 22 formed of a first optical glue.
  • the organic light-emitting unit 23 can be combined by a display structure and other functional layers of the auxiliary display structure to achieve light emission.
  • the material selected by the organic light-emitting unit 23 is a material commonly used in the art, which will not be repeated here.
  • the cover plate 25 is adhered to the organic light emitting unit 23 by a second adhesive layer 24 formed of a second optical glue, and the second adhesive layer 24 is away from the adhesive surface 211.
  • the cover plate 25 is placed on the organic light-emitting unit 23 to protect the entire flexible screen 200.
  • the cover plate 25 serves as a protective layer on the surface of the flexible screen 200, which can be made of softer flexible materials, such as a transparent polyimide substrate.
  • a first magnetic material is added to the first optical glue
  • a second magnetic material is added to the second optical glue
  • the magnetic properties of the first magnetic material and the second magnetic material are opposite .
  • the first optical glue and the second optical glue are special adhesives for bonding transparent devices, which have a certain light transmittance, and those skilled in the art can determine their specific materials through experiments and other methods according to the actual situation. It should be noted that the “first optical glue” and “second optical glue” are only used to indicate their positions in FIG. 1. A person skilled in the art may choose to use the same optical glue as the first optical glue and the second optical glue, or may use different optical glues as the first optical glue and the second optical glue, respectively. There are no restrictions.
  • the first magnetic material and the second magnetic material are one or more of cobalt, titanium, zinc oxide, or ruthenium boron, which can react to the magnetic field, which are added in the first optical glue and the second optical glue, respectively. It is used to make the adhesive layer formed by two adjacent optical adhesives have magnetic attraction force.
  • the first magnetic material and the second magnetic material can be made into nanoparticles and added to the optical glue.
  • a suitable light-transmitting substance may be added to the first magnetic material and the second magnetic material to increase the light-transmitting property of the magnetic material.
  • the correspondingly formed first adhesive layer 22 and second adhesive layer 24 also have opposite magnetic properties and have magnetic attraction with each other, so that the flexible screen 200
  • the first adhesive layer 22 and the second adhesive layer 24 have mutual attraction, it is not easy because the substrate 21, the organic light-emitting unit 23, and the cover plate 25 are bending
  • the greater resilience occurs at the time, and the delamination between the substrate 21, the organic light-emitting unit 23, and the cover 25 occurs, so that the manufactured flexible screen 200 has a greater curvature and can adapt to a more complicated curved structure.
  • the magnetic attraction force formed between the first magnetic material and the second magnetic material is controllable, and the position and position of the magnetic substance selected by the first magnetic material and the second magnetic material in each adhesive layer can be adjusted by adjusting The amount of magnetic attraction force is adjusted accordingly; the magnitude of the magnetic attraction force can be determined according to the position, angle and force of the flexible screen bending or winding.
  • the flexible screen 200 can also add a magnetic material to the force position corresponding to the adhesive layer formed by the optical adhesive for the film layer with low adhesion and easy to peel off under bending according to actual needs, and through magnetic attraction Improve the problem that the flexible screen is easy to delaminate and fall off at the stressed position.
  • the force-bearing position may be a bending part when the flexible screen 200 is bent, or may be a part that is often stressed, such as an edge of the flexible screen.
  • a case where the flexible screen 200 is bent is not easy to be delaminated at the bending part by adding a magnetic material to the bending part of the flexible screen 200.
  • FIG. 2 is a schematic diagram of the force applied by the flexible screen 200 provided by the embodiment of the present application when subjected to a large bending.
  • first adhesive layer 22 has a first curved portion 221 as shown in FIG. 2
  • second adhesive layer 24 has a second curved portion 241 as shown in FIG. 2.
  • a first magnetic material is added on the first curved portion 221; a second magnetic material is added on the second curved portion 241.
  • the substrate 21 when the substrate 21 is at the curved part of the flexible screen 200, its contact surface with the first adhesive layer 22 will be subjected to a magnetic attraction of the same size and opposite direction as F 3 (not shown). This magnetic attraction can help The substrate 21 will not be easily delaminated from the organic light-emitting unit 23 due to the large resilience when bent.
  • the organic light emitting unit 23 includes a display layer 231, a polarizing layer 232, and a touch layer 233 that are sequentially stacked.
  • the display layer 231 can be composed of corresponding anodes, cathodes, and organic functional layers to realize light emission.
  • the display layer 231 can be composed of an anode, a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layered in this order. The layer, the electron injection layer and the cathode are formed.
  • the polarizing layer 231 is composed of a polarizing film and a phase delay structure located on the polarizing film to form a polarizing plate, which is used to reduce the reflection caused by external light entering the flexible screen 200 to enhance the display effect of the flexible screen 200.
  • Both the polarizing film and the phase retardation structure can be prepared by conventional liquid crystal coating, stretching, etc. to finally obtain the polarizing layer 232.
  • a third adhesive layer 234 formed by a third optical glue is bonded between the display layer 231 and the polarizing layer 232, and a fifth magnetic material is added to the third optical glue.
  • the touch layer 233 includes a conventional flexible substrate and a touch circuit provided on the flexible substrate.
  • the touch layer 233 is used to receive a user's touch operation.
  • the flexible substrate has a certain thickness and strength, and is used to support the touch circuit.
  • the flexible substrate is selected from the above substrates, and may be selected from any one or more of polyethylene terephthalate, polyimide, and the like.
  • the flexible substrate formed by the above materials can make the touch layer 233 have better flexibility.
  • a fourth adhesive layer 235 formed by a fourth optical glue is bonded between the polarizing layer 232 and the touch layer 233, and a sixth magnetic material is added to the fourth optical glue.
  • the fifth magnetic material and the sixth magnetic material are magnetically opposite, so that the corresponding third adhesive layer and the fourth adhesive layer also have opposite magnetic properties, so that the two adhesive layers have magnetic attraction between each other;
  • the third adhesive layer and the fourth adhesive layer have mutual attraction, which is not easy because of the display layer 231, the polarizing layer 232, and the touch layer 233 The greater resilience when bending, delamination occurs.
  • the magnetic attractive force formed between the fourth magnetic material and the fifth magnetic material is also controllable, which can be adjusted by adjusting the position and amount of the magnetic substance selected by the magnetic properties of the fourth magnetic material and the fifth magnetic material in each adhesive layer Adjust the magnitude of the magnetic attraction accordingly.
  • the substrate 21 and the cover plate 25 of the flexible screen 200 serve as a supporting mechanism and a protective structure of the flexible screen 200, and are respectively provided at the bottom and top of the flexible screen 200.
  • a certain width of the peripheral buried under the cover plate 25 needs to be designed
  • the conductive area of the flexible screen 200 is accommodated in the line area.
  • the conductive line generally uses a metal conductive material, and the metal conductive material will affect the appearance of the flexible screen 200 due to the reflection of metal.
  • Those skilled in the art usually print ink on the surface of the conductive line For occlusion.
  • a magnetic material may be added on the printing ink of the screen 200 and the corresponding position of the substrate 21 to protect the periphery of the cover plate 25 and the substrate 21 to avoid the frame of the flexible screen 200 under frequent use Easy to layer.
  • FIG. 4 is a schematic structural diagram of a flexible screen 500 provided by an embodiment of the present application.
  • the flexible screen 500 includes: a substrate 51, a first adhesive layer 52, and an organic light-emitting unit 53. Second adhesive layer 54 and cover plate 55.
  • the difference between the flexible screen 500 and the above-mentioned flexible screen 200 is that an ink layer 551 is provided on the periphery of the cover plate 55 facing the organic light emitting unit 53, and the ink layer 551 covers the peripheral wiring area of the cover plate ( (Not shown), a third magnetic material is added in the ink layer 551; a magnetic adhesive layer 511 is provided on the periphery of the substrate 51 facing the organic light emitting unit 53, and a third magnetic material is added in the magnetic adhesive layer 511 Four magnetic materials.
  • the position of the ink layer 551 on the cover plate 55 is opposite to the position of the magnetic adhesive layer 511 on the substrate 51, and the third magnetic material and the third The magnetic properties of the four magnetic materials are opposite, so that the substrate 51 is specifically bonded to the organic light emitting unit 53 through the first optical glue and the magnetic adhesive layer 511; the cover plate 55 is passed through the second optical glue Bonding with the ink layer 551 and the organic light emitting unit to form the flexible screen 500 shown in FIG. 4.
  • the frame portion of the flexible screen 500 has a magnetic force that attracts each other, so that the substrate 51 and the cover 55 of the flexible screen 500 are more firmly bonded to the organic light-emitting unit 53, which can prevent the flexible screen 500 from being used frequently Next, the phenomenon of stratification occurs.
  • the third magnetic material added to the ink layer 551 can be added to the ink layer 551 in the form of magnetic powder or magnetic strip.
  • the magnetic adhesive layer 511 may be a magnetic adhesive strip or a magnetic film.
  • a predetermined pattern may be etched on the magnetic adhesive strip to increase the rigidity of the magnetic adhesive strip to reduce Deformation caused by frequent stress.
  • the flexible screen provided by the embodiment of the present application improves the bending performance of the flexible screen by adding a magnetic material in the adhesive layer formed by the optical glue, on the one hand, the service life of the flexible screen is longer, on the other hand, the flexible screen has Larger curvature can adapt to more complex curved structures.

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Abstract

一种柔性屏幕(200)，包括：基板(21)，包括一粘结面(211)；有机发光单元(23)，其和粘接面(211)通过第一光学胶形成的第一粘接层(22)粘结，第一光学胶内添加有第一磁性材料；盖板(25)，其与有机发光单元(23)通过第二光学胶形成的第二粘接层(24)粘结，第二粘接层(24)远离粘结面(211)，第二光学胶内添加有第二磁性材料，第一磁性材料和第二磁性材料的磁性相反。柔性屏幕(200)通过在光学胶内添加磁性材料，改善了柔性屏幕(200)的弯折性能，一方面使柔性屏幕(200)的使用寿命更长，另一方面柔性屏幕(200)具有更大的曲率，能够适应更复杂的弯曲结构。

Description

一种柔性屏幕 技术领域
本申请涉及柔性显示技术领域，尤其是涉及一种柔性屏幕。
背景技术
柔性显示屏是采用柔性材料制成的可弯曲变形的显示装置，其包括电子纸、柔性液晶显示器和柔性有机电致发光OLED(Organic Light-Emitting Diode,OLED)器件。柔性显示屏以其重量轻、体积小、薄型化等优点在显示与照明领域有着重要应用。
在制备OLED显示屏时，一般需要通过光学胶将对应的膜层粘接，以得到轻薄的层状结构，该层状结构的OLED显示屏，其屏幕为柔性可以弯曲、卷绕形成相应的柔性形状。
发明人在实现本发明的过程中发现：在将柔性屏幕重复弯曲、折叠或者试使用其他方式使其变形时，会因为使用环境的温度、湿度以及弯折疲劳性能等原因，使柔性屏幕的结构不稳定，各层之间容易脱落，导致该屏幕损坏。
发明内容
本申请旨在提供一种柔性屏幕及柔性装置，以解决柔性屏幕在重复弯曲、卷绕时，容易发生损坏的技术问题。
为解决上述技术问题，本申请实施例采用的一个技术方案是：提供一种柔性屏幕，包括：基板，所述基板包括一粘结面；有机发光单元，所述有机发光单元和所述粘接面通过第一光学胶形成的第一粘接层粘结，所述第一光学胶内添加有第一磁性材料；盖板，所述盖板与所述有机发光单元通过第二光学胶形成的第二粘接层粘结，所述第二粘接层远离所述粘结面，并且所述第二光学胶内添加有第二磁性材料，所述第一磁性材料和所述第二磁性材料的磁性相反。
可选地，所述第一粘接层具有第一弯曲部，所述第二粘接层具有第二弯曲部，所述第一磁性材料添加在所述第一弯曲部上；所述第二磁性材料添加在所述第二弯曲部上。
可选地，所述第一磁性材料和所述第二磁性材料之间形成的磁性吸引力可控。
可选地，所述磁性材料为以下材料中的一种或多种：钴、钛、氧化锌和钕铁硼。
可选地，所述盖板面向所述有机发光单元的外围设置有油墨层，所述油墨层覆盖所述盖板的外围走线区域，所述油墨层内添加有第三磁性材料，所述基板面向所述有机发光单元的外围设置有磁性粘结层，所述磁性粘结层内添加有第四磁性材料；所述第三磁性材料和所述第四磁性材料的磁性相反。
可选地，所述油墨层与所述磁性粘结层相对设置。
可选地，所述基板通过所述第一光学胶和所述磁性粘结层与所述有机发光单元粘结；所述盖板通过所述第二光学胶与所述油墨层与所述有机发光单元粘结。
可选地，所述磁性粘结层为磁性胶条或者磁性贴膜。
可选地，所述磁性胶条蚀刻有预设图案。
可选地，所述有机发光单元包括：显示层、偏光层和触控层，所述显示层和所述偏光层之间通过第三光学胶形成的第三粘结层粘结，所述第三光学胶内添加有第五磁性材料；所述偏光层和所述触控层之间通过第四光学胶形成的第四粘结层粘结，所述第四光学胶内添加有第六磁性材料；所述第五磁性材料和所述第六磁性材料的磁性相反。
本申请实施例提供的柔性屏幕，其通过在光学胶形成的粘结层内添加磁性材料，改善了柔性屏幕的弯折性能，一方面使柔性屏幕的使用寿命更长，另一方面柔性屏幕具有更大的曲率，能够适应更复杂的弯曲结构。
附图说明
图1是本申请实施例提供的柔性屏幕的结构示意图；
图2是图1中的柔性屏幕在弯曲状态时的受力情况示意图；
图3是图1中的机发光单元的结构示意图；
图4本申请另一实施例提供的柔性屏幕的结构示意图；
图5a是图4中油墨层与盖板在另一视角的结构示意图；
图5b是图4磁性粘结层与基板在另一视角的结构示意图。
具体实施方式
为了使本申请的目的、方案及优点更加清楚明白，以下结合实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。此外，下面所描述的本申请不同实施例中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
传统的柔性屏幕是具有较高的柔韧性，可以被卷绕形成圆柱或者弯曲成非平面形状以提高便携性或者用以完成特定显示目的。
惯常的，柔性屏幕通常包括依次层叠的柔性基板、发光单元和柔性盖板，其中，柔性基板作为柔性屏幕的支撑结构，设置于柔性屏幕的最下方为发光单元和柔性盖板提供相应的支撑力；而柔性盖板作为柔性屏幕的保护结构，盖设于柔性屏幕的最上方。该发光单元则依据不同的设计或者需要，具有不同的功能层来实现发光。
柔性屏幕的柔性基板、发光单元和柔性盖板之间以及发光单元各功能层之间一般通过光学胶形成粘结层进行粘结。由于光学胶结构刚度远小于柔性基板、发光单元和柔性盖板的刚度，因此，在对柔性屏幕经常性的折叠、卷绕或以其他方式变形时，在柔性屏幕的弯曲、折叠位置，上述各层的刚度回弹力、以及在弯曲、卷绕时的应力集中现象，很容易使得光学胶脱落导致各结构层产生分层。
本申请实施例即对光学胶形成的粘结层进行改善，应用本申请实施例提供的柔性屏幕，可以很好的改善粘接层易脱落的性能，提高柔性屏幕在弯曲，卷绕或发生其他形变下的可靠性。
以下首先对本申请实施例提供的柔性屏幕进行介绍，请参阅图1，图1是本申请实施例提供的柔性屏幕200的结构示意图。其中，图1以柔性屏幕200处于弯曲状态进行示意，该柔性屏幕200还可以折叠、卷绕成其他合适形状。所述柔性屏幕200包括：基板21、第一粘接层22、有机发光单元23、第二粘结层24和盖板25。
所述基板21作为基底设置在柔性屏幕200的最下方为柔性屏幕200提供支撑。其包括一图1中所示的粘结面211。基板21可以为满足预设透光率标准的透明基板或者柔性基板，其由特定的基材制备获得的，具有满足使用要求的厚 度和强度的柔性膜层。该基板21可以根据实际情况的需要，选择任何类型的聚合物材料制备获得。
在一些实施例中，所述聚合物材料可以选自聚对苯二甲酸乙二酯、聚萘二甲酸乙二醇酯、聚酰亚胺、聚醚砜树脂、聚乙烯、聚苯烯、聚碳酸酯、聚氨酯或者硅橡胶中的任一种或多种。采用上述聚合物形成的柔性基板具有较好的柔韧性。
所述有机发光单元23和所述基板21通过由第一光学胶形成的第一粘接层22粘结。有机发光单元23可以由显示结构和其他辅助显示结构的功能层组合，来实现发光，该机发光单元23所选用的材料为本领域常用材料，在此不再赘述。
所述盖板25通过由第二光学胶形成的第二粘接层24粘结于所述有机发光单元23上，并且所述第二粘接层24远离所述粘结面211。
所述盖板25盖设于有机发光单元23上，起到保护整个柔性屏幕200的作用。在本申请实施例中，所述盖板25作为柔性屏幕200表面的保护层，其可以选用较软的柔性材料制得，例如可以选用透明的聚酰亚胺基材制得。
在本申请实施例中，所述第一光学胶内添加有第一磁性材料，所述第二光学胶内添加有第二磁性材料，并且，该第一磁性材料和第二磁性材料的磁性相反。
第一光学胶和第二光学胶为胶结透明器件的特种胶粘剂，其具有一定的透光率，本领域技术人员可以根据实际情况通过实验等方式确定其具体选材。应当说明的是，该“第一光学胶”和“第二光学胶”仅用于表示其在图1中所处的位置。本领域技术人员即可以选择使用相同的光学胶作为所述第一光学胶和第二光学胶，也可以选择使用不同的光学胶分别作为所述第一光学胶和第二光学胶，本申请对此不作限制。
第一磁性材料和第二磁性材料为钴、钛、氧化锌或汝铁硼中的一种或多种能对磁场做出反应材料，其分别添加在第一光学胶和第二光学胶内，用于使相邻两光学胶形成的粘结层之间具有磁性吸引力。该第一磁性材料和第二磁性材料可以制成纳米颗粒状添加至光学胶中。在一些实施例中，还可以在第一磁性材料和第二磁性材料中添加合适的透光物质，以增加磁性材料的透光性。
由于第一磁性材料和第二磁性材料的磁性相反，其对应形成的第一粘结层22和第二粘结层24也具有相反的磁性，相互之间具有磁性吸引力，这样在柔性 屏幕200发生弯曲、卷绕或以其他方式变形时，其第一粘结层22和第二粘结层24由于具有相互的吸引力，则不容易因为基板21、有机发光单元23以及盖板25在弯曲时的较大的回弹力，而发生基板21、有机发光单元23以及盖板25之间的分层，使得制成的柔性屏幕200具有更大的曲率，能够适应更复杂的弯曲结构。
当然，该第一磁性材料和第二磁性材料之间形成的磁性吸引力是可控的，可以通过调整第一磁性材料和第二磁性材料磁性选用的磁性物质在各粘结层中的位置和用量来相应调整该磁性吸引力的大小；该磁性吸引力的大小可以根据柔性屏幕弯曲或卷绕的位置、角度以及受力情况进行确定。
柔性屏幕200还可以根据实际需要，针对黏着力较低，且弯曲下容易产生脱落的膜层，在其光学胶形成的粘接层所对应的受力位置添加磁性材料，并通过磁性吸引力来改善柔性屏幕在受力位置容易分层脱落的问题。该受力位置可以是柔性屏幕200弯曲时的弯曲部位，也可以是柔性屏幕的边缘等经常受力的部位。
以下首先通过在柔性屏幕200的弯曲部位添加磁性材料，来对柔性屏幕200弯曲时，其在弯曲部位不容易分层的情况进行说明。
具体请参阅图2，图2是本申请实施例提供的柔性屏幕200在承受较大弯曲时的受力情况示意图。
该柔性屏幕200在弯曲时，其第一粘接层22具有如图2所示的第一弯曲部221，其第二粘接层24具有如图2所示的第二弯曲部241。第一磁性材料添加在该第一弯曲部221上；第二磁性材料添加在该第二弯曲部241上。
在柔性屏幕200弯折成图2所示的形状时，盖板25在柔性屏幕200的弯曲部位，其粘接面211受力情况如图2所示，受到一右下方的回弹力F 1，面向所述第二粘接层24内聚力F 2和磁性吸引力F 3，该磁性吸引力F 3。该磁性吸引力F 3+内聚力F 2>回弹力F 1，这样盖板25就不会容易因为较大的回弹力F 1而与有机发光单元23分层。
同理，基板21在柔性屏幕200的弯曲部位，其与第一粘接层22的接触面会受到一与F 3大小相同，方向相反的磁性吸引力(图未示)，该磁性吸引力可以帮助基板21不会容易因为弯曲时的较大回弹力而与有机发光单元23分层。
在一些实施例中，所述有机发光单元23如图3所示，包括依次层叠的显示 层231、偏光层232和触控层233。
所述显示层231为可以由相应的阳极、阴极以及有机功能层组成来实现发光，例如，该显示层231可以由依次层叠的阳极、空穴注入层、空穴传输层、发光层、电子传输层、电子注入层和阴极形成。
所述偏光层231由偏振薄膜和位于偏振薄膜上的相位延迟结构共同组成形成偏振片，用于降低外部光线射入所述柔性屏幕200内产生的反射，以增强柔性屏幕200的显示效果，该偏振薄膜和相位延迟结构均可以通过传统的液晶涂布、拉伸等方式制备，以最终得到偏光层232。
所述显示层231和所述偏光层232之间通过第三光学胶形成的第三粘接层234粘结，所述第三光学胶内添加有第五磁性材料。
所述触控层233则包括惯常的柔性衬底和设于柔性衬底上的触控线路，触控层233用于接收用户的触控操作。该柔性衬底具有一定的厚度和强度，用于支撑触控线路。其中，柔性衬底的选材如上述基板，可以选自聚对苯二甲酸乙二醇酯、聚酰亚胺等中的任一种或多种。采用上述材料形成的柔性衬底可使触控层233具有较好的柔韧性。
所述偏光层232和所述触控层233之间通过第四光学胶形成的第四粘结层235粘结，所述第四光学胶内添加有第六磁性材料。
所述第五磁性材料和所述第六磁性材料磁性相反，这样其对应的第三粘接层和第四粘接层也具有相反的磁性，使两粘接层相互之间具有磁性吸引力；在柔性屏幕200发生弯曲、卷绕或以其他方式变形时，其第三粘接层和第四粘接层由于具有相互的吸引力，则不容易因为显示层231、偏光层232和触控层233在弯曲时的较大的回弹力，而发生分层。
该第四磁性材料和第五磁性材料之间形成的磁性吸引力也是可控的，可以通过调整第四磁性材料和第五磁性材料磁性选用的磁性物质在各粘结层中的位置和用量来相应调整该磁性吸引力的大小。
柔性屏幕200的基板21和盖板25作为柔性屏幕200的支撑机构和保护结构，分别设置在柔性屏幕200的最下方和最上方，惯常的，在盖板25的下方需要设计一定宽度的外围埋线区域来收容柔性屏幕200的导电线，该导电线一般选用金属导电材料，而金属导电材料会因为金属的反光影响柔性屏幕200的外观，本领域技术人员通常会在该导电线的表面印刷油墨以进行遮挡。
由于柔性屏幕200的外围埋线区域靠近柔性屏幕200的边框，在柔性屏幕200被使用时，其边框会因为承受更频繁的受力而较其他部位更容易发生脱落，即该柔性屏幕200的外围埋线区域上的印刷油墨容易与其粘结的有机发光单元容易发生脱落。因此，在一些实施例中，还可以在屏幕200的印刷油墨上和基板21的相应位置添加磁性材料，以对盖板25和基板21的外围进行保护，避免柔性屏幕200在频繁使用下其边框容易分层。
具体请参阅图4，图4是本申请实施例提供的一种柔性屏幕500的结构示意图，如图4所示，所述柔性屏幕500包括：基板51、第一粘接层52、有机发光单元53、第二粘结层54和盖板55。
所述柔性屏幕500与上述柔性屏幕200的区别在于：所述盖板55面向所述有机发光单元53的外围设置有油墨层551，所述油墨层551覆盖所述盖板的外围走线区域(图未示)，所述油墨层551内添加有第三磁性材料；所述基板51面向所述有机发光单元53的外围设置有磁性粘结层511，所述磁性粘结层511内添加有第四磁性材料。
其中，如图5a和图5b所示，所述油墨层551在盖板55上的位置与所述磁性粘结层511在基板51上的位置相对，且所述第三磁性材料和所述第四磁性材料的磁性相反，这样所述基板51具体通过所述第一光学胶和所述磁性粘结层511与所述有机发光单元53粘结；所述盖板55通过所述第二光学胶与所述油墨层551与所述有机发光单元粘结，以形成图4所示的柔性屏幕500。
在柔性屏幕500频繁性使用时，其边框部分由于具有相互吸引的磁力，使得柔性屏幕500的基板51和盖板55均与有机发光单元53粘结的更牢固，可以避免柔性屏幕500在频繁使用下，发生分层的现象。
较佳地，所述油墨层551内添加有第三磁性材料可以以磁性粉末或者磁性胶条的形式添加于所述油墨层551内。而磁性粘结层511可以为磁性胶条或者磁性贴膜，当该磁性粘结层511为磁性贴膜时，还可以在磁性胶条上蚀刻预设图案，来增加磁性胶条的刚度，以减小频繁受力造成的变形。
本申请实施例提供的柔性屏幕，其通过在光学胶形成的粘结层内添加磁性材料，改善了柔性屏幕的弯折性能，一方面使柔性屏幕的使用寿命更长，另一方面柔性屏幕具有更大的曲率，能够适应更复杂的弯曲结构。
以上所述仅为本申请的实施例，并非因此限制本申请的专利范围，凡是利 用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (10)

  1. 一种柔性屏幕，其特征在于，包括：
    基板，所述基板包括一粘结面；
    有机发光单元，所述有机发光单元和所述粘接面通过第一光学胶形成的第一粘接层粘结，所述第一光学胶内添加有第一磁性材料；
    盖板，所述盖板与所述有机发光单元通过第二光学胶形成的第二粘接层粘结，所述第二粘接层远离所述粘结面，并且所述第二光学胶内添加有第二磁性材料，所述第一磁性材料和所述第二磁性材料的磁性相反。
  2. 根据权利要求1所述的柔性屏幕，其特征在于，所述第一粘接层具有第一弯曲部，所述第二粘接层具有第二弯曲部，
    所述第一磁性材料添加在所述第一弯曲部上；
    所述第二磁性材料添加在所述第二弯曲部上。
  3. 根据权利要求2所述的柔性屏幕，其特征在于，所述第一磁性材料和所述第二磁性材料之间形成的磁性吸引力可控。
  4. 根据权利要求1所述的柔性屏幕，其特征在于，所述磁性材料为以下材料中的一种或多种：钴、钛、氧化锌和钕铁硼。
  5. 根据权利要求2所述的柔性屏幕，其特征在于，所述盖板面向所述有机发光单元的外围设置有油墨层，所述油墨层覆盖所述盖板的外围走线区域，所述油墨层内添加有第三磁性材料，
    所述基板面向所述有机发光单元的外围设置有磁性粘结层，所述磁性粘结层内添加有第四磁性材料；
    所述第三磁性材料和所述第四磁性材料的磁性相反。
  6. 根据权利要求5所述的柔性屏幕，其特征在于，所述油墨层与所述磁性粘结层相对设置。
  7. 根据权利要求5所述的柔性屏幕，其特征在于，所述基板通过所述第一光学胶和所述磁性粘结层与所述有机发光单元粘结；
    所述盖板通过所述第二光学胶与所述油墨层与所述有机发光单元粘结。
  8. 根据权利要求5所述的柔性屏幕，其特征在于，所述磁性粘结层为磁性胶条或者磁性贴膜。
  9. 根据权利要求8所述的柔性屏幕，所述磁性胶条蚀刻有预设图案。
  10. 根据权利要求1-9任一项所述的柔性屏幕，其特征在于，所述有机发光单元包括：显示层、偏光层和触控层，所述显示层和所述偏光层之间通过第三光学胶形成的第三粘结层粘结，所述第三光学胶内添加有第五磁性材料；
    所述偏光层和所述触控层之间通过第四光学胶形成的第四粘结层粘结，所述第四光学胶内添加有第六磁性材料；
    所述第五磁性材料和所述第六磁性材料的磁性相反。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114038327A (zh) * 2021-11-29 2022-02-11 合肥维信诺科技有限公司 柔性显示模组及柔性显示装置
FR3144561A1 (fr) 2023-01-04 2024-07-05 Psa Automobiles Sa Procédé et dispositif de contrôle d’un système d’affichage pour véhicule
FR3144560A1 (fr) 2023-01-04 2024-07-05 Psa Automobiles Sa Système d’affichage pour véhicule et véhicule comprenant un tel système d’affichage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107765921A (zh) * 2017-10-31 2018-03-06 云谷（固安）科技有限公司 柔性基板及柔性基板制作方法
CN107994063A (zh) * 2017-12-15 2018-05-04 武汉华星光电半导体显示技术有限公司 磁性胶材、磁性胶膜、贴合方法及amoled显示装置
CN108251007A (zh) * 2018-01-02 2018-07-06 上海天马有机发光显示技术有限公司 磁性胶带和显示装置
CN108766982A (zh) * 2018-05-29 2018-11-06 霸州市云谷电子科技有限公司 柔性显示屏和柔性显示装置
CN109004100A (zh) * 2017-06-06 2018-12-14 上海和辉光电有限公司 柔性显示器件

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107807468A (zh) * 2017-11-29 2018-03-16 武汉天马微电子有限公司 显示模组及显示装置
CN207883219U (zh) * 2018-03-09 2018-09-18 信利光电股份有限公司 一种显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109004100A (zh) * 2017-06-06 2018-12-14 上海和辉光电有限公司 柔性显示器件
CN107765921A (zh) * 2017-10-31 2018-03-06 云谷（固安）科技有限公司 柔性基板及柔性基板制作方法
CN107994063A (zh) * 2017-12-15 2018-05-04 武汉华星光电半导体显示技术有限公司 磁性胶材、磁性胶膜、贴合方法及amoled显示装置
CN108251007A (zh) * 2018-01-02 2018-07-06 上海天马有机发光显示技术有限公司 磁性胶带和显示装置
CN108766982A (zh) * 2018-05-29 2018-11-06 霸州市云谷电子科技有限公司 柔性显示屏和柔性显示装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114038327A (zh) * 2021-11-29 2022-02-11 合肥维信诺科技有限公司 柔性显示模组及柔性显示装置
FR3144561A1 (fr) 2023-01-04 2024-07-05 Psa Automobiles Sa Procédé et dispositif de contrôle d’un système d’affichage pour véhicule
FR3144560A1 (fr) 2023-01-04 2024-07-05 Psa Automobiles Sa Système d’affichage pour véhicule et véhicule comprenant un tel système d’affichage
WO2024146989A1 (fr) 2023-01-04 2024-07-11 Stellantis Auto Sas Système d'affichage pour véhicule et véhicule comprenant un tel système d'affichage
WO2024146990A1 (fr) 2023-01-04 2024-07-11 Stellantis Auto Sas Procédé et dispositif de contrôle d'un système d'affichage pour véhicule

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