WO2020029656A1 - 支撑膜、显示装置及其制备方法 - Google Patents

支撑膜、显示装置及其制备方法 Download PDF

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Publication number
WO2020029656A1
WO2020029656A1 PCT/CN2019/088555 CN2019088555W WO2020029656A1 WO 2020029656 A1 WO2020029656 A1 WO 2020029656A1 CN 2019088555 W CN2019088555 W CN 2019088555W WO 2020029656 A1 WO2020029656 A1 WO 2020029656A1
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WIPO (PCT)
Prior art keywords
hollowed
support film
flexible screen
screen body
out area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2019/088555
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English (en)
French (fr)
Inventor
黄华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yungu Guan Technology Co Ltd
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Yungu Guan Technology Co Ltd
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Publication date
Application filed by Yungu Guan Technology Co Ltd filed Critical Yungu Guan Technology Co Ltd
Priority to US16/779,862 priority Critical patent/US11385685B2/en
Publication of WO2020029656A1 publication Critical patent/WO2020029656A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • 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
    • 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
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • G06F1/166—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories related to integrated arrangements for adjusting the position of the main body with respect to the supporting surface, e.g. legs for adjusting the tilt angle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
    • H04M1/185—Improving the shock resistance of the housing, e.g. by increasing the rigidity
    • 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
    • H10K2102/311—Flexible OLED

Definitions

  • the present application relates to the field of display, and in particular, to a support film, a display device, and a manufacturing method thereof.
  • the present application provides a supporting film, a display device and a manufacturing method thereof, which can disperse and buffer the impact stress when a heavy object hits the flexible screen body, and avoid the damage or failure of the display device due to the impact stress.
  • the present application provides a support film for attaching to a side of a flexible screen body.
  • the support film is provided with at least one hollow area, and at least one hollow area is used to receive an impact force on the flexible screen body. When acting, release the impact force.
  • the present application provides a display device including: a flexible screen body; and the supporting film according to the first aspect, wherein the supporting film is attached to one side of the flexible screen body.
  • the present application provides a method for manufacturing a display device, including: preparing a support film; preparing at least one hollowed-out area on the support film; providing a flexible screen body, and attaching a support film provided with at least one hollowed-out area on the support film; One side of the flexible screen body, wherein at least one hollowed-out area is used to release the impact force when the flexible screen body is subjected to an impact force.
  • the embodiments of the present application provide a support film, a display device and a preparation method thereof.
  • a layer of a support film provided with a plurality of hollowed areas to a flexible screen body
  • the flexible screen body can be dispersed when being impacted by a heavy object. And buffering the impact force to avoid damage to the display components due to stress concentration, thereby avoiding the failure or failure of the flexible screen body.
  • FIG. 1 is a schematic structural diagram of a supporting film according to an embodiment of the present application.
  • FIG. 2 is a front view of a display device according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a force of a display device provided by an embodiment of the present application when it is impacted by a heavy object.
  • FIG. 4 is a schematic structural diagram of a display device according to another embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for manufacturing a display device according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a method for manufacturing a display device according to another embodiment of the present application.
  • Flexible screens are widely used in mobile phones, wearable devices, etc. due to their characteristics of being bendable, foldable, light, thin, and small.
  • the area hit by the heavy object will cause damage to the components in the area due to the impact force, resulting in a poor display phenomenon. .
  • FIG. 1 is a schematic structural diagram of a supporting film 120 according to an embodiment of the present application. As shown in FIG. 1, the support film 120 is used to be attached to one side of the flexible screen body. The support film 120 is provided with a plurality of hollow areas, and the plurality of hollow areas are used to release the impact when the flexible screen body is subjected to an impact force. force.
  • An embodiment of the present application provides a support film.
  • a flexible film body is provided with a support film provided with a plurality of hollowed-out areas on one side thereof, so that the flexible screen body can disperse and buffer the impact force when being impacted by a heavy object, avoiding The display components are damaged due to stress concentration, thereby preventing the flexible screen body from malfunctioning or failing.
  • FIG. 2 is a front view of a display device 100 according to an embodiment of the present application.
  • the display device 100 includes a flexible screen body 110 and a supporting film 120.
  • the display device 100 is specifically described below with reference to FIGS. 1 and 2.
  • the flexible screen body 110 is located on one side of the support film 120.
  • the support film 120 is provided with a plurality of hollow areas, and the plurality of hollow areas are used to release the impact force when the flexible screen body 110 receives an impact force.
  • the shape of the projection of each of the plurality of hollowed areas on the upper surface of the support film 120 includes a circle, a rectangle, a triangle, a diamond, a pentagon, a hexagon, and an oval Any of them.
  • the shape of the projection of the hollowed-out area 121 on the upper surface of the support film 120 may also be other regular or irregular figures, which is not limited in this application.
  • the flexible screen body 110 can be designed into different shapes according to its bending degree, for example, any shape such as a flat surface, a wave, a concave surface, a convex surface, and the like.
  • the flexible screen body 110 may be a multilayered structure, for example, including a flexible substrate, an OLED (Organic Light-Emitting Diode) element, and other display devices.
  • the flexible substrate is connected to the supporting film 120, the OLED element and Other display devices are sequentially stacked on a side of the flexible substrate away from the support film 120.
  • the flexible screen body 110 may further include a cover film attached to a side of the other display device away from the support film 120 to protect components in the flexible screen body 110.
  • the laminated structure of the flexible screen body 110 is from the side close to the support film 120 to the side far from the support film 120, in order: a flexible substrate, an OLED layer, a barrier layer, a polarizer, and a polarizer, POL), Optical Adhesive (OCA), Touch Panel (TP), OCA, and Cover Film.
  • a square hollow area 121 and a spherical weight are taken as examples to explain the dispersion and cushioning effect of the hollow area 121 on the impact force.
  • the hit portion of the flexible screen body 110 can be deformed downward (that is, in the space where the hollowed-out area 121 is located) to cushion part of the impact force.
  • the flexible screen body 110 will be subjected to an impact stress F1, which is smaller than the impact stress generated when there is no support film or the hollow film 121 is not provided on the support film, so the support film 120 can buffer the impact stress.
  • a reaction force of impact stress F1 will be generated, that is, reverse stresses F2, F3, F4, and F5 will be generated on the four sides of the hollowed-out 121 (F4 and F5 are not shown in the figure) ), If the weight falls on the center of the hollowed-out area 121, F2, F3, F4 and F5 are equal in size. This can avoid the situation where there is only one upward reverse stress F when there is no hollow region 121, which is equivalent to that the hollow region 121 can decompose the directional stress F, so that the impact force can be dispersed, thereby avoiding the phenomenon of stress concentration.
  • the arrangement manner of the plurality of hollowed-out areas may be uniformly arranged, for example, in a matrix arrangement or non-uniformly arranged, which is not limited in this application, and may be set according to actual conditions.
  • the embodiment of the present application provides a display device.
  • the flexible screen body can disperse and buffer the impact force when it is impacted by a heavy object, avoiding The stress concentration causes the display components to be damaged, thereby preventing the flexible screen body from malfunctioning or failing.
  • the shape of the projection of the hollowed-out area 121 on the upper surface of the support film 120 is circular, and a plurality of hollowed-out areas are evenly arranged.
  • the flexible screen body 110 can be subjected to reverse stresses in more directions, and the magnitude of the reverse stresses in each direction is closer to equal, so that the impact of dispersing and buffering the impact force is reduced. The effect is better, and the components are better protected.
  • a plurality of hollowed-out areas can be evenly arranged, such as in a matrix, and the support film 120 can be covered with hollows within a range corresponding to the display area of the flexible screen body 110. Area.
  • each hollow area may be the same or different.
  • the shape and size of each hollow area may be the same to avoid the phenomenon of stress concentration and ensure the stability of the display device;
  • the shape and size of the hollowed-out region in the non-planar region may be different from that of the planar region to better cushion and disperse the impact force.
  • the diameter of the hollowed area 121 is 5 mm to 6 mm.
  • the impact force exerted by the weight on the screen body may completely fall into the interior of the hollowed-out area 121, so that it is difficult to achieve the effect of dispersing the impact force;
  • the flexible screen body 110 is in contact with a heavy object, it will be difficult to undergo large deformation, and the angle between each reverse stress and the impact force in the opposite direction will be small, that is, it is difficult to achieve the effect of buffering and dispersing the impact force.
  • the diameter of the hollowed-out area 121 in the embodiment of the present application may be 5 mm to 6 mm.
  • the hollowed-out area 121 may be 5 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.8 mm, 5.9 mm. Or 6.0 mm.
  • the side length of the hollowed-out area 121 may be 5 mm to 6 mm.
  • the specific size of the hollowed-out area 121 can be set according to the actual situation.
  • the distance between adjacent hollowed-out areas may be the diameter of the hollowed-out area or 1x, 1.5x, 2x of side length, etc. If the distance is too large, the strength of the supporting film 120 is greater, and the supporting effect on the flexible screen 110 is stable, but the effect on buffering and diffusing the impact of the flexible screen is reduced; if the interval is too small, the flexible screen 110 is subjected to the impact.
  • the distance between adjacent hollowed out areas can be set according to the actual situation, which is not limited in this application.
  • the thickness of the supporting film 120 is 80 ⁇ m to 100 ⁇ m.
  • the support film 120 cannot be too thick, and too thick will affect the bending and folding effects of the display device.
  • the supporting film 120 should not be too thin, because the supporting film 120 has a supporting effect on the flexible screen body 110. If the supporting film 120 is too thin, it will be difficult to achieve a supporting effect.
  • the thickness of the support film 120 may be 80 micrometers to 100 micrometers, such as 80 micrometers, 85 micrometers, 90 micrometers, 95 micrometers, or 100 micrometers. Of course, the specific thickness of the support film 120 may be set according to actual conditions.
  • the material of the supporting film 120 includes any one of polyethylene terephthalate, polybutylene terephthalate, and polymethyl methacrylate.
  • engineering plastic can be used as the material of the supporting film, because engineering plastic has good dimensional stability, good heat resistance, and good mechanical strength, and can be used as a supporting film.
  • the material of the supporting film 120 in this application is polyethylene terephthalate (PET).
  • an inner wall of each of the hollowed-out areas 121 in the plurality of hollowed-out areas is an inclined surface, and the size of the cross-section near the flexible screen body 110 is larger than size.
  • the inner wall of the hollowed-out area 121 can be set as a bevel, that is, the cross-section of the hollowed-out area 121 in the direction of the vertical support film 120 is trapezoidal, or the inner wall of the hollowed-out area 121 is chamfered near the flexible screen body 110, and
  • the opening size of the hollow area 121 near the flexible screen body 110 is larger than the opening size of the hollow screen body 110. This ensures that the hollow area 121 can buffer and disperse the impact while reducing the volume of the hollow area 121, thereby making The supporting effect of the supporting film 120 on the flexible screen body 110 is more stable.
  • the display device 100 may be a display screen of a mobile phone.
  • chip circuits may be provided at the edge position of the flexible screen body 110, and the portion of the flexible screen body 110 provided with the chip circuit needs to be bent to the back of the display screen.
  • a part of the flexible screen body 110 is bent to the back of the display screen, and the supporting film 120 is provided with a bending hollow area 122 at a portion corresponding to the bending area of the flexible screen body 110.
  • the shape of the curved hollow area 122 may be rectangular, oval, rhombic, triangular, or other regular or irregular shapes.
  • FIG. 4 is a schematic structural diagram of a display device 200 according to another embodiment of the present application. As shown in FIG. 4, the display device 200 is similar to the display device 100, and the same points are not repeated here. The difference is that the shape of the hollowed area 221 on the support film 220 is square, and the side length of the hollowed area 221 can be 5 mm to 6 mm. In addition, a curved hollowed-out area 222 may also be provided at the edge position of the support film 220 to meet the requirements for manufacturing a full-screen mobile phone.
  • FIG. 5 is a schematic flowchart of a method for manufacturing a display device according to an embodiment of the present application. As shown in FIG. 5, the preparation method includes the following contents.
  • a support film may be prepared on the substrate, and then the support film may be removed from the substrate, so that the support film can be attached to one side of the flexible screen body later.
  • the type of the substrate may be based on actual conditions. Make a selection, such as a glass substrate.
  • the support film can be prepared by any of the following methods: a calendering method, a casting method, a blow molding method, a stretching method, and the like.
  • a plurality of hollow areas are further prepared on the support film. After the hollow areas are set, the support film is removed from the substrate.
  • the method for preparing the hollowed-out area on the supporting film may be laser drilling or cutting with a die.
  • the shape of the hollowed out area may be rectangular, square, or circular, which is not limited in this application.
  • a support film provided with a plurality of hollow areas is attached to one side of the flexible screen body, wherein the plurality of hollow areas are used to release the impact force when the flexible screen body is subjected to an impact force.
  • the supporting film may be removed from the substrate first, and then the supporting film is attached to one side of the flexible screen body, and finally a laser drilling or A plurality of hollow regions are provided on the supporting film by a method such as die cutting.
  • the embodiment of the present application provides a method for manufacturing a display device.
  • the flexible screen body can disperse and buffer the impact force when it is impacted by a heavy object. , To avoid damage to the display components due to stress concentration, and thus to avoid failure or failure of the flexible screen body.
  • FIG. 6 is a schematic flowchart of a method for manufacturing a display device according to another embodiment of the present application, where the display device uses a display screen of a mobile phone as an example. As shown in FIG. 6, the preparation method includes the following contents.
  • 620 preparing a plurality of hollowed-out areas and a curved hollowed-out area on the support film.
  • the shape of the hollowed-out area (for stress release, so it can also be called stress-relieved hollowed-out area) can be rectangular, square, or circular.
  • the shape of the curved hollowed-out area can be rectangular, oval, or other shapes. Be limited.
  • Multiple hollowed-out areas are used to release the impact force when the flexible screen is subjected to an impact force; curved hollowed-out areas are used to more easily bend the flexible screen body with the chip circuit part close to the support film when the full screen of the mobile phone is realized The side.

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Abstract

一种支撑膜(120)、显示装置(100)及显示装置(100)的制备方法，显示装置(100)包括：柔性屏体(110)；支撑膜(120)，柔性屏体(110)位于支撑膜(120)的一侧，支撑膜(120)上设有至少一个镂空区，至少一个镂空区用于在柔性屏体(110)受到冲击力作用时，释放冲击力。通过给柔性屏体(110)贴附一层设有至少一个镂空区的支撑膜(120)，使得柔性屏体(110)在受到重物冲击时，能够分散和缓冲冲击力，避免因应力集中而导致显示元器件受损。

Description

支撑膜、显示装置及其制备方法 技术领域
本申请涉及显示领域，具体涉及一种支撑膜、显示装置及其制备方法。
发明背景
现有的柔性屏设备在受到外力猛烈冲击时，会在被外力击中的区域产生应力集中的现象，导致该区域下方的元器件受损，致使屏幕出现黑斑、亮斑、彩斑等显示不良的现象。
发明内容
有鉴于此，本申请提供了一种支撑膜、显示装置及其制备方法，能够分散和缓冲重物击中柔性屏体时的冲击应力，避免因冲击应力导致显示装置的受损或失效。
第一方面，本申请提供了一种支撑膜，支撑膜用于贴附于柔性屏体的一侧，支撑膜上设有至少一个镂空区，至少一个镂空区用于在柔性屏体受到冲击力作用时，释放冲击力。
第二方面，本申请提供了一种显示装置，包括：柔性屏体；以及如第一方面所述的支撑膜，支撑膜贴附于柔性屏体的一侧。
第三方面，本申请提供了一种显示装置的制备方法，包括：制备支撑膜；在支撑膜上制备至少一个镂空区；提供柔性屏体，将设置有至少一个镂空区的支撑膜贴附在柔性屏体的一侧，其中，至少一个镂空区用于在柔性屏体受到冲击力作用时，释放冲击力。
本申请实施例提供了一种支撑膜、显示装置及其制备方法，通过给柔性屏体贴附一层设有多个镂空区的支撑膜，从而使得柔性屏体在受到重物冲击时，能够分散和缓冲冲击力，避免因应力集中而导致显示元器件受损，进而避免柔性屏体因此出现故障或失效。
附图简要说明
图1所示为本申请一实施例提供的支撑膜的结构示意图。
图2所示为本申请一实施例提供的显示装置的主视图。
图3所示为本申请一实施例提供的显示装置受到重物冲击时的受力示意图。
图4所示为本申请另一实施例提供的显示装置的结构示意图。
图5所示为本申请一实施例提供的显示装置的制备方法的示意性流程图。
图6所示为本申请另一实施例提供的显示装置的制备方法的示意性流程图。
实施本发明的方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
柔性屏由于具有可弯曲、可折叠，并且轻薄、体积小的特点而被广泛应用于手机、可穿戴设备等。柔性屏在使用过程中，当有重物落在柔性屏的某一区域时，被重物击中的区域会因冲击力的作用而导致该区域的元器件受损，从而出现显示不良的现象。
例如，在柔性屏的可靠性测试中使用落球击中屏幕，被击中的区域瞬间不能全彩显示，显示区域出现黑斑、亮斑、彩斑等不良现象。
因此，需要对重物击中柔性屏时所产生的应力进行分散或缓冲，以实现对元器件的保护。
图1所示为本申请一实施例提供的支撑膜120的结构示意图。如图1所示，支撑膜120用于贴附于柔性屏体的一侧，支撑膜120上设有多个镂空区，多个镂空区用于在柔性屏体受到冲击力作用时，释放冲击力。
本申请实施例提供了一种支撑膜，通过在柔性屏体的一侧贴附设有多个镂空区的支撑膜，从而使得柔性屏体在受到重物冲击时，能够分散和缓冲冲击力，避免因应力集中而导致显示元器件受损，进而避免柔性屏体因此出现故障或失效。
图2所示为本申请一实施例提供的显示装置100的主视图。该显示装置100包括：柔性屏体110和支撑膜120。以下结合图1和图2对显示装置100进行具体的描述。
柔性屏体110位于支撑膜120的一侧，支撑膜120上设有多个镂空区，多个镂空区用于在柔性屏体110受到冲击力作用时，释放冲击力。
在本申请某些实施例中，多个镂空区中每个镂空区在支撑膜120的上表面的投影的形状为包括圆形、矩形、三角形、菱形、五边形、六边形、椭圆形中的任一种。
具体地，镂空区121在支撑膜120的上表面的投影的形状还可以为其他规则的或不规则的图形，本申请对此不做限定。
柔性屏体110可以根据其弯折程度设计为不同形状，例如，平面、波浪、凹 面、凸面等任何形状。
柔性屏体110可以为多层的层叠结构，如，包括柔性基板、OLED(有机发光二极管，Organic Light-Emitting Diode)元件和其他显示器件等，其中，柔性基板与支撑膜120连接，OLED元件和其他显示器件依次层叠在柔性基板远离支撑膜120的一侧上。进一步地，柔性屏体110还可以包括覆盖膜，该覆盖膜贴附在其他显示器件远离支撑膜120的一侧，以保护柔性屏体110内的元器件。
根据本申请一实施例，柔性屏体110的层叠结构由靠近支撑膜120一侧到远离支撑膜120一侧，依次为：柔性基板，OLED层，阻挡层(Barrier Film)，偏光片(Polarizer，POL)，光学胶(Optical Clear Adhesive，OCA)，触控面板(Touch Panel，TP)，OCA，以及覆盖膜(Cover Film)。
下面以正方形的镂空区121、以及球形的重物为例，来解释镂空区121对冲击力的分散和缓冲作用。
参见图3，当重物击中柔性屏体110时，由于镂空区121的存在，柔性屏体110被击中的部分可以向下(即镂空区121所在空间内)发生形变以缓冲部分冲击力，此时柔性屏体110会受到冲击应力F1，该冲击应力F1小于没有支撑膜或者支撑膜上未设置镂空区121时的所产生的冲击应力，因此该支撑膜120可以缓冲冲击应力。
此外，在镂空区121的边界上，会产生冲击应力F1的反作用力，即会在镂空121的四条边上分别产生反向应力F2、F3、F4和F5(F4和F5在图中未示出)，若重物落在镂空区121的中心位置，则F2、F3、F4和F5大小相等。这样可以避免没有镂空区121时仅产生一个向上的反向应力F的情况，相当于，镂空区121可以分解方向应力F，从而可以分散冲击力，进而避免应力集中的现象。
具体地，多个镂空区的排布方式可以是均匀排布的，例如，呈矩阵排布，也可以是非均匀排布的，本申请对此不做限定，可以根据实际情况进行设定。
本申请实施例提供了一种显示装置，通过给柔性屏体贴附一层设有多个镂空区的支撑膜，从而使得柔性屏体在受到重物冲击时，能够分散和缓冲冲击力，避免因应力集中而导致显示元器件受损，进而避免柔性屏体因此出现故障或失效。
根据本申请一实施例，如图1所示，镂空区121在支撑膜120的上表面的投影的形状为圆形，且多个镂空区均匀排布。
具体地，当镂空区121的形状为圆形时，可以使得柔性屏体110受到更多方向的反向应力，且各个方向的反向应力的大小更接近相等，从而使得分散和缓冲冲击力的效果更好，进而更好地保护元器件。为了进一步避免重物落在柔性屏体110上产生应力集中的现象，多个镂空区可以均匀排列，如呈矩阵排列，且支撑膜120在对应柔性屏体110显示区域的范围内可以布满镂空区。
各个镂空区的形状和大小可以相同也可以不同，如当柔性屏体110为平面形 状时，各个镂空区的形状和大小可以相同，以避免应力集中的现象，并保证显示装置的稳定性；当柔性屏体110包括平面区域和非平面区域时，在非平面区域的镂空区的形状和尺寸可以与平面区域的不同，以更好地缓冲和分散冲击力。
根据本申请一实施例，当镂空区121在支撑膜120的上表面的投影的形状为圆形时，镂空区121的直径为5毫米至6毫米。
具体地，当镂空区121的孔径过大时，重物对屏体施加的冲击力可能会完全落入镂空区121的内部，从而难以达到分散冲击力的效果；而当镂空区121的孔径过小时，柔性屏体110与重物接触的部分会难以发生较大的变形，且各个反向应力与冲击力反方向的夹角会很小，即难以达到缓冲和分散冲击力的效果。本申请实施例中镂空区121的直径可以为5毫米至6毫米，如可以为5毫米、5.1毫米、5.2毫米、5.3毫米、5.4毫米、5.5毫米、5.6毫米、5.7毫米、5.8毫米、5.9毫米或6.0毫米。当镂空区121为正方形时，镂空区121的边长可以为5毫米至6毫米。当然，镂空区121的具体尺寸可以根据实际情况进行设定。
优选地，当镂空区121为诸如圆形、正方形、正六边形的规则形状时，相邻镂空区之间的间距(即相邻镂空区的中心之间的距离)可以为镂空区的直径或边长的1倍、1.5倍、2倍等。间距过大，支撑膜120的强度越大，对柔性屏体110的支撑作用稳定，但是对柔性屏体的缓冲和分散冲击力的作用降低；间距过小，在柔性屏体110受到冲击力时，支撑膜120对柔性屏体110的保护作用越全面，但是支撑膜120自身的强度降低。相邻镂空区之间的间距可以根据实际情况进行设定，本申请对此不做限定。
根据本申请一实施例，支撑膜120的厚度为80微米至100微米。
具体地，由于该显示装置在使用时，可能需要以弯曲或折叠的形式存在，因此，支撑膜120不能太厚，太厚会影响显示装置的弯曲和折叠效果。此外，支撑膜120也不能太薄，因为支撑膜120对柔性屏体110有支撑的作用，支撑膜120太薄会难以起到支撑的效果。本申请实施例中支撑膜120的厚度可以为80微米至100微米，如80微米、85微米、90微米、95微米或100微米，当然，支撑膜120的具体厚度可以根据实际情况进行设定。
根据本申请一实施例，支撑膜120的材料包括聚对苯二甲酸乙二酯、聚对苯二甲酸丁二酯、聚甲基丙烯酸甲酯中的任一种。
具体地，支撑膜的材料可以选用工程塑料，因为工程塑料的尺寸稳定性好、耐热性好、机械强度好，可以用作支撑膜。优选地，本申请中支撑膜120的材料为聚对苯二甲酸乙二酯(PET)。
可选地，作为另一实施例，多个镂空区中每个镂空区121的内壁为斜面，且靠近柔性屏体110一侧的横截面的尺寸大于远离柔性屏体110一侧的横截面的尺寸。
具体地，镂空区121的内壁可以设置成斜面，即镂空区121在垂直支撑膜120方向上的截面为梯形，或者，镂空区121的内壁在靠近柔性屏体110的位置设置有倒角，且镂空区121在靠近柔性屏体110处的开口尺寸大于远离柔性屏体110处的开口尺寸，这样在保证镂空区121能够缓冲和分散冲击力的同时，还能缩小镂空区121的体积，进而使得支撑膜120对柔性屏体110的支撑作用更稳定。
根据本申请一实施例，显示装置100可以为手机的显示屏。为了满足全面屏手机的制作要求，柔性屏体110的边缘位置可以设置有芯片电路，且柔性屏体110设有芯片电路的部分需要弯折到显示屏的背面，因此为了便于将设有芯片电路部分的柔性屏体110弯折到显示屏的背面，支撑膜120在与柔性屏体110弯折区对应的部分设有弯曲(bending)镂空区122。弯曲镂空区122的形状可以为长方形、椭圆形、菱形、三角形或其他规则或不规则的形状。
图4所示为本申请另一实施例提供的显示装置200的结构示意图。如图4所示，显示装置200与显示装置100类似，相同之处在此不再赘述，其不同之处在于支撑膜220上的镂空区221的形状为正方形，镂空区221的边长可以为5毫米至6毫米。此外，支撑膜220的边缘位置也可以设置弯曲镂空区222，以满足全面屏手机的制作要求。
图5所示为本申请一实施例提供的显示装置的制备方法的示意性流程图。如图5所示，该制备方法包括以下内容。
510：制备支撑膜。
具体地，可以先在衬底上制备支撑膜，然后将支撑膜从衬底上取下，以便于之后将支撑膜贴附于柔性屏体的一侧，其中，衬底的类型可以根据实际情况进行选择，如可以是玻璃基板。
支撑膜的制备方法可以采用以下任一种：压延法、流延法、吹塑法、拉伸法等。
520：在支撑膜上制备多个镂空区。
具体地，在衬底上制备好支撑膜后，进一步地在支撑膜上制备多个镂空区，设置完镂空区以后，将支撑膜从衬底上取下。
在支撑膜上制备镂空区的方法可以采用激光打孔或刀模切割等。
镂空区的形状可以是长方形、正方形或者圆形等，本申请对此不做限定。
530：将设置有多个镂空区的支撑膜贴附在柔性屏体的一侧，其中，多个镂空区用于在柔性屏体受到冲击力作用时，释放冲击力。
支撑膜的具体结构和功能，以及柔性屏体的结构可以参见图1至图4的描述，为避免重复，在此不再赘述。
根据本申请一实施例，在衬底上制备好支撑膜后，可以先将支撑膜从衬底上取下，然后将支撑膜贴附于柔性屏体的一侧，最后再通过激光打孔或刀模切割等 方法在支撑膜上设置多个镂空区。
本申请实施例提供了一种显示装置的制备方法，通过给柔性屏体贴附一层设有多个镂空区的支撑膜，从而使得柔性屏体在受到重物冲击时，能够分散和缓冲冲击力，避免因应力集中而导致显示元器件受损，进而避免柔性屏体因此出现故障或失效。
图6所示为本申请另一实施例提供的显示装置的制备方法的示意性流程图，其中，该显示装置以手机的显示屏为例。如图6所示，该制备方法包括以下内容。
610：制备支撑膜。
支撑膜的制备过程可以参见图5的描述，在此不再赘述。
620：在支撑膜上制备多个镂空区，以及弯曲镂空区。
镂空区(用于释放应力，因此也可以称为应力释放镂空区)的形状可以是长方形、正方形或者圆形等，弯曲镂空区的形状可以为长方形、椭圆形或其他形状，本申请对此不做限定。
630：将设置有多个镂空区和弯曲镂空区的支撑膜贴附在柔性屏体的一侧。
多个镂空区用于在柔性屏体受到冲击力作用时，释放冲击力；弯曲镂空区用于在实现手机全面屏时，更易于将封装有芯片电路部分的柔性屏体弯折到靠近支撑膜的一侧。
镂空区对冲击力的分散和缓冲作用的具体过程，可以参见上述方法部分的描述，在此不再赘述。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换等，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种支撑膜，所述支撑膜用于贴附于柔性屏体的一侧，所述支撑膜上设有至少一个镂空区，所述至少一个镂空区用于在所述柔性屏体受到冲击力作用时，释放冲击力。
  2. 根据权利要求1所述的支撑膜，其中，所述至少一个镂空区为多个镂空区。
  3. 根据权利要求2所述的支撑膜，其中，所述多个镂空区中每个镂空区在所述支撑膜的上表面的投影的形状为圆形、矩形、三角形、菱形、五边形、六边形、椭圆形中的任一种。
  4. 根据权利要求3所述的支撑膜，其中，所述镂空区在所述支撑膜的上表面的投影的形状为圆形，且所述多个镂空区均匀排布。
  5. 根据权利要求4所述的支撑膜，其中，所述镂空区的直径为5毫米至6毫米。
  6. 根据权利要求1至5中任一项所述的支撑膜，其中，所述支撑膜的厚度为80微米至100微米。
  7. 根据权利要求1至5中任一项所述的支撑膜，其中，所述支撑膜的材料包括聚对苯二甲酸乙二酯、聚对苯二甲酸丁二酯和聚甲基丙烯酸甲酯中的至少一种。
  8. 根据权利要求2至5中任一项所述的支撑膜，其中，所述多个镂空区中每个镂空区的内壁为斜面，且靠近所述柔性屏体一侧的横截面的尺寸大于远离所述柔性屏体一侧的横截面的尺寸。
  9. 根据权利要求1所述的支撑膜，其中，所述至少一个镂空区中每个镂空区的内壁在靠近所述柔性屏体的位置设置有倒角。
  10. 一种显示装置，包括：
    柔性屏体；
    以及如权利要求1至9中任一项所述的支撑膜，所述支撑膜贴附于所述柔性屏体的一侧。
  11. 一种显示装置的制备方法，包括：
    制备支撑膜；
    在所述支撑膜上制备至少一个镂空区；
    提供柔性屏体，将设置有所述至少一个镂空区的支撑膜贴附在所述柔性屏体的一侧，其中，
    所述至少一个镂空区用于在所述柔性屏体受到冲击力作用时，释放冲击力。
  12. 根据权利要求11所述的显示装置的制备方法，其中，所述至少一个镂空区为多个镂空区。
  13. 根据权利要求11所述的制备方法，其中，所述在所述支撑膜上制备至少一个镂空区，包括：
    通过激光打孔或刀模切割在所述支撑膜上制备所述至少一个镂空区。
  14. 根据权利要求12所述的制备方法，其中，所述多个镂空区中每个镂空区在所述支撑膜的上表面的投影的形状为圆形、矩形、三角形、菱形、五边形、六边形、椭圆形中的任一种。
  15. 根据权利要求14所述的制备方法，其中，所述镂空区在所述支撑膜的上表面的投影的形状为圆形，且所述多个镂空区均匀排布。
  16. 根据权利要求15所述的制备方法，其中，所述镂空区的直径为5毫米至6毫米。
  17. 根据权利要求11至16中任一项所述的制备方法，其中，所述支撑膜的厚度为80微米至100微米。
  18. 根据权利要求11至16中任一项所述的制备方法，其中，所述支撑膜的材料包括聚对苯二甲酸乙二酯、聚对苯二甲酸丁二酯和聚甲基丙烯酸甲酯中的至少一种。
  19. 根据权利要求12至16中任一项所述的制备方法，其中，所述多个镂空区中每个镂空区的内壁为斜面，且靠近所述柔性屏体一侧的横截面的尺寸大于远离所述柔性屏体一侧的横截面的尺寸。
  20. 根据权利要求11所述的制备方法，其中，所述至少一个镂空区中每个镂空区的内壁在靠近所述柔性屏体的位置设置有倒角。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113257122A (zh) * 2021-04-07 2021-08-13 合肥维信诺科技有限公司 显示模组用支撑层组、显示模组及其制备方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109036136A (zh) * 2018-08-10 2018-12-18 云谷（固安）科技有限公司 支撑膜、显示装置及其制备方法
CN109523923A (zh) * 2018-12-20 2019-03-26 武汉华星光电半导体显示技术有限公司 可弯折盖板及柔性显示装置
CN110827693B (zh) * 2019-11-28 2022-01-25 昆山工研院新型平板显示技术中心有限公司 一种柔性可折叠显示面板以及柔性显示终端
CN110782801A (zh) * 2019-11-28 2020-02-11 昆山工研院新型平板显示技术中心有限公司 一种显示模组、显示面板
CN111091762B (zh) * 2020-01-08 2023-08-22 京东方科技集团股份有限公司 柔性显示面板组件和柔性显示装置
CN112150929A (zh) * 2020-09-27 2020-12-29 武汉华星光电半导体显示技术有限公司 背板和显示装置
CN112309996B (zh) * 2020-10-28 2024-01-30 武汉华星光电半导体显示技术有限公司 支撑膜层及柔性显示面板
CN114093264B (zh) * 2021-11-25 2024-02-02 广州国显科技有限公司 一种显示装置
CN114220356A (zh) * 2022-01-06 2022-03-22 河北科技大学 柔性屏的柔性模组及其制备方法
CN116333627A (zh) * 2023-03-07 2023-06-27 合肥维信诺科技有限公司 复合胶带及其制作方法、显示模组及显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1519626A (zh) * 2003-01-23 2004-08-11 新日本石油株式会社 光学层叠体的制造方法和液晶显示装置
CN103681759A (zh) * 2012-09-19 2014-03-26 三星显示有限公司 有机发光显示装置
CN104134660A (zh) * 2014-07-07 2014-11-05 京东方科技集团股份有限公司 一种支撑器件及柔性显示装置
CN105609006A (zh) * 2015-12-31 2016-05-25 京东方科技集团股份有限公司 一种柔性装置
CN108054173A (zh) * 2017-12-13 2018-05-18 京东方科技集团股份有限公司 显示基板及制备方法、显示装置
CN108230907A (zh) * 2018-01-03 2018-06-29 上海天马有机发光显示技术有限公司 柔性显示屏及显示装置
CN109036136A (zh) * 2018-08-10 2018-12-18 云谷（固安）科技有限公司 支撑膜、显示装置及其制备方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006509229A (ja) * 2002-12-03 2006-03-16 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ディスプレイの製造方法
US20060207967A1 (en) * 2003-07-03 2006-09-21 Bocko Peter L Porous processing carrier for flexible substrates
CN201217420Y (zh) * 2008-04-29 2009-04-08 雷胜辉 一种防撞板
CN103429016B (zh) * 2012-05-14 2016-08-17 联想(北京)有限公司 一种电子设备壳体及应用该壳体的机壳、电子设备
KR101447885B1 (ko) * 2013-03-04 2014-10-08 주식회사 엘엠에스 플렉시블 디스플레이 소자
CN103927941B (zh) * 2013-12-23 2017-11-03 上海天马有机发光显示技术有限公司 一种显示装置及其制造方法
KR102269133B1 (ko) * 2014-04-30 2021-06-25 삼성디스플레이 주식회사 플렉서블 디스플레이 장치 및 그 제조방법
CN104323663A (zh) * 2014-11-22 2015-02-04 中山市民众镇顺兴防静电机器设备厂 一种耐摔玻璃杯套
CN204491985U (zh) * 2015-02-11 2015-07-22 廖合堂 一种抗冲击防爆板材
CN104733507B (zh) * 2015-04-09 2018-05-01 京东方科技集团股份有限公司 柔性显示装置和柔性显示装置的封装方法
KR102437578B1 (ko) * 2015-11-11 2022-08-26 삼성전자주식회사 투명 전극 및 이를 포함하는 소자
CN105690974B (zh) * 2016-01-21 2019-01-18 京东方科技集团股份有限公司 柔性薄膜贴合与剥离方法、柔性基板制备方法、衬底基板
KR102653753B1 (ko) * 2016-11-16 2024-04-02 삼성디스플레이 주식회사 플렉서블 표시 장치용 윈도우 및 이를 포함하는 플렉서블 표시 장치
CN107067979B (zh) * 2017-03-08 2020-05-05 武汉天马微电子有限公司 一种柔性显示装置及其制造方法、以及电子设备
CN107554017A (zh) * 2017-08-28 2018-01-09 京东方科技集团股份有限公司 柔性复合膜及其制备方法和显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1519626A (zh) * 2003-01-23 2004-08-11 新日本石油株式会社 光学层叠体的制造方法和液晶显示装置
CN103681759A (zh) * 2012-09-19 2014-03-26 三星显示有限公司 有机发光显示装置
CN104134660A (zh) * 2014-07-07 2014-11-05 京东方科技集团股份有限公司 一种支撑器件及柔性显示装置
CN105609006A (zh) * 2015-12-31 2016-05-25 京东方科技集团股份有限公司 一种柔性装置
CN108054173A (zh) * 2017-12-13 2018-05-18 京东方科技集团股份有限公司 显示基板及制备方法、显示装置
CN108230907A (zh) * 2018-01-03 2018-06-29 上海天马有机发光显示技术有限公司 柔性显示屏及显示装置
CN109036136A (zh) * 2018-08-10 2018-12-18 云谷（固安）科技有限公司 支撑膜、显示装置及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113257122A (zh) * 2021-04-07 2021-08-13 合肥维信诺科技有限公司 显示模组用支撑层组、显示模组及其制备方法

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