WO2022205895A1 - 显示模组及显示装置 - Google Patents

显示模组及显示装置 Download PDF

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Publication number
WO2022205895A1
WO2022205895A1 PCT/CN2021/128119 CN2021128119W WO2022205895A1 WO 2022205895 A1 WO2022205895 A1 WO 2022205895A1 CN 2021128119 W CN2021128119 W CN 2021128119W WO 2022205895 A1 WO2022205895 A1 WO 2022205895A1
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Prior art keywords
support layer
display module
area
display
bending
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PCT/CN2021/128119
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English (en)
French (fr)
Inventor
崔越
魏悦涵
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京东方科技集团股份有限公司
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Publication of WO2022205895A1 publication Critical patent/WO2022205895A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display module and a display device.
  • a support layer is usually provided on one side of the flexible panel to improve the support performance of the panel and protect the flexible panel.
  • foldable or rollable flexible panels often produce poor display.
  • the present disclosure provides a display module, the display module includes:
  • the flexible display panel includes a display area and a bending area on the periphery of the display area;
  • an extension direction of the isolation groove is perpendicular to the first direction.
  • the extending trajectory of the isolation groove is a curve.
  • a filler is provided in the isolation groove, and the elastic modulus of the filler is smaller than the elastic modulus of the support layer.
  • the material of the filler includes silica gel.
  • the distance between the isolation groove and the bending region is greater than or equal to 7 mm and less than or equal to 15 mm.
  • the width of the isolation groove is greater than or equal to 1 mm.
  • an edge of the support layer close to the bending area is indented relative to an edge of the display area close to the bending area, and the indentation amount is less than or equal to 0.5 mm.
  • an edge of the support layer close to the bending region is protruded relative to an edge of the display region close to the bending region, and the protruding amount is less than or equal to 0.5 mm.
  • the thickness of the support layer is greater than or equal to 30 ⁇ m and less than or equal to 50 ⁇ m.
  • the material of the support layer is metal, and the material of the metal is stainless steel or a shape memory alloy.
  • the bending radius of the bending region is less than or equal to 400 ⁇ m.
  • the present disclosure provides a display device including the display module described in any one of the embodiments.
  • FIG. 1 shows a schematic cross-sectional structure diagram of a display module in an unfolded state in the related art
  • FIG. 2 shows a schematic cross-sectional structure diagram of a display module in the related art in two folded states
  • FIG. 3 shows a schematic structural diagram of double-sided folding of the display module
  • FIG. 4 shows a schematic structural diagram of one-sided folding of the display module
  • Fig. 5 shows the schematic diagram of the dislocation between the film layers of the display module in the folded state in the related art
  • FIG. 6 shows a schematic cross-sectional structure diagram of a display module provided by an embodiment of the present disclosure
  • FIG. 7 shows a schematic plan view of a support layer provided by an embodiment of the present disclosure.
  • FIG. 1 there is shown a schematic cross-sectional structure diagram of a display module in an unfolded state in the related art
  • FIG. 2 is a schematic cross-sectional structure diagram of the display module in two folded states. Comparing FIGS. 1 and 2 , it can be seen that with the folding of the display module, the supporting layer 12 in the display module and the display panel 11 have different bending radii, causing the supporting layer 12 to move relative to the display panel 11 . In addition, since the stress accumulation increases as the edge is closer to the support layer 12 , the dislocation amount of the support layer 12 at the edge position is larger. When the supporting layer 12 shifts too much to the side away from the bending area 13 , as shown in a in FIG.
  • the corresponding position of the display panel 11 may be collapsed due to insufficient supporting force;
  • the amount of displacement is equal to the bending radius of the bending area 13 , the bending area 13 may be squeezed and damaged by the support layer 12 . Risk of poor display.
  • the inventors carried out mechanical simulations of double-sided folding (as shown in Figure 3) and single-sided folding (as shown in Figure 4) respectively on the flexible display panel. According to the simulation results, it was found that the amount of dislocation between film layers caused by double-sided folding is greater than Dislocation momentum caused by unilateral folding. For example, referring to FIG. 5 , the displacement amount of the cover plate 51 relative to the optical adhesive film layer 52 is increased from 229um folded on one side to 268um folded on both sides, and the displacement amount of the back film 53 relative to the support layer 54 is increased from 229um folded on one side to 268um folded on both sides. 386um increased to 525um folded on both sides. It can be seen that the amount of interlayer dislocation caused by the folding or curling of the flexible display panel cannot be ignored.
  • the display module includes: a flexible display panel 61.
  • the flexible display panel 61 includes a display area AA and a bending area BB located at the periphery of the display area AA;
  • the support layer 62 on one side of the display area AA, the support layer 62 is disposed away from the light-emitting side of the flexible display panel 61; wherein, the support layer 62 is provided with an isolation groove 63 penetrating the support layer 62 in the first direction, and the isolation groove 63 is close to the bending
  • the region BB is provided to cut off the support layers 62 on both sides of the isolation groove 63, and the first direction is perpendicular to the thickness direction of the support layer 62 and the bending axis X of the bending region BB.
  • the flexible display panel 61 may be a substrate of an organic light-emitting diode (Organic Light-Emitting Diode, OLED) structure, or may be other flexible substrates, which are not specifically limited in this embodiment.
  • OLED Organic Light-Emitting Diode
  • the flexible display panel 61 of the display area AA can be folded or rolled, which is not limited in this embodiment.
  • the material of the support layer 62 may be a material capable of supporting, such as metal, which is not limited in this embodiment.
  • the material of the metal may be stainless steel or shape memory alloy or the like.
  • the support layer 62 can play a role of supporting the flexible display panel 61 , improving the supportability of the display module, and at the same time protecting the flexible display panel 61 .
  • the thickness of the support layer 62 may be greater than or equal to 30 ⁇ m and less than or equal to 50 ⁇ m, which is not limited in this embodiment.
  • the flexible display panel 61 may further include a binding area CC located at the periphery of the bending area BB, and the binding area CC may be provided with a driver chip DDIC, an FPC, and the like, as shown in FIG. 6 .
  • the bending area BB is used to bend the binding area CC to the back of the flexible display panel 61 .
  • the support layers 62 on both sides of the isolation groove 63 are disconnected, so that the support layers on both sides of the isolation groove 63 are disconnected.
  • 62 is discontinuous.
  • the isolation groove 63 Since the isolation groove 63 is disposed close to the bending area BB, it can block the transfer of the stress accumulated from the middle position during the process of folding or rolling the flexible display panel 61 to the edge of the supporting layer 62 close to the bending area BB, The stress accumulation at the edge of the support layer 62 close to the bending area BB is reduced, and the displacement of the edge of the support layer 62 close to the bending area BB relative to the flexible display panel 61 is reduced. On the one hand, the support layer 62 can be prevented from bending away from the bending area. Excessive displacement of one side of the area BB will cause the flexible display panel 61 at the corresponding position to collapse due to insufficient supporting force. If the bending area BB is damaged, the present disclosure can reduce the risk of defects in the bending area BB, thereby reducing display defects and improving the reliability of the display module.
  • the inventor has carried out a mechanical simulation of the double-sided folding of the display module provided in this embodiment.
  • an isolation groove 63 on the support layer 62 near the bending area BB By setting an isolation groove 63 on the support layer 62 near the bending area BB, the edge of the support layer 62 close to the bending area BB is opposite to each other.
  • the dislocation amount of the flexible display panel 61 is reduced from 525um to 216um, which effectively reduces the dislocation amount of the support layer 62, and the bending area BB does not collapse or damage.
  • the extending direction of the isolation groove 63 may be perpendicular to the first direction.
  • the shape of the isolation groove shown in FIG. 7 is a strip, and the extending trace line is a straight line.
  • the extending trajectory line of the isolation groove 63 may also be a curve or the like, which is not limited in this embodiment.
  • fillers may be provided in the isolation grooves 63 , and the elastic modulus of the fillers is smaller than the elastic modulus of the support layer 62 .
  • the material of the filler may include a material with a small elastic modulus such as silica gel, which is not limited in this embodiment.
  • the distance d1 between the isolation groove 63 and the bending region BB may be greater than or equal to 7 mm and less than or equal to 15 mm.
  • the isolation groove 63 is too far away from the bending area BB, there is still a large amount of stress accumulated inside the support layer 62 located on the side of the isolation groove 63 close to the bending area BB and propagated to the support layer 62 close to the bending area The edge of the BB, resulting in a large amount of dislocation.
  • the flexible display panel 61 will not be affected by the edge level difference because the isolation groove 63 is too close to the bending area BB.
  • the width d2 of the isolation groove 63 may be greater than or equal to 1 mm. It should be noted that the size of the isolation groove 63 in the first direction can be as large as possible without affecting the supporting performance of the support layer 62, so as to avoid the isolation groove 63 caused by the film layer dislocation during the bending process of the display module.
  • the support layers on both sides are in contact, and the specific size can be set according to actual requirements, which is not limited in this embodiment.
  • the edge of the support layer 62 close to the bending area BB may be indented relative to the edge of the display area AA close to the bending area BB, and the indentation amount may be less than or equal to 0.5 mm. In this way, it can be ensured that the display area of the flexible display panel 61 is sufficiently supported, and the support layer 62 will not interfere with the bending area BB.
  • the edge of the support layer 62 close to the bending area BB may protrude relative to the edge of the display area AA close to the bending area BB, and the protruding amount may be less than or equal to 0.5 mm. In this way, it can be ensured that the display area of the flexible display panel 61 is sufficiently supported, and the support layer 62 will not interfere with the bending area BB.
  • the bending radius R of the bending region BB may be less than or equal to 400 ⁇ m, which is not limited in this embodiment.
  • the protruding amount of the edge of the supporting layer 62 close to the bending area BB relative to the flexible display panel 61 can always be smaller than the bending radius of the bending area BB, ensuring that the supporting layer 62 Even when the flexible display panel 61 is protruded, the bending area BB will not be damaged.
  • the display module may further include: a polarizer, an optical adhesive film layer and an encapsulation cover plate that are stacked and arranged on the side of the display area AA of the flexible display panel 61 away from the support layer 62, and the polarizer is arranged close to the display area AA; and the back film disposed between the display area AA of the flexible display panel 61 and the support layer 62 .
  • the polarizer can be a circular polarizer to reduce the reflectivity of the display module.
  • Another embodiment of the present disclosure further provides a display device, and the display device may include the display module described in any of the embodiments.
  • the display device in this embodiment may be any product or component with 2D or 3D display function, such as electronic paper, mobile phone, tablet computer, TV, notebook computer, digital photo frame, and navigator.
  • Embodiments of the present disclosure provide a display module and a display device, wherein the display module includes: a flexible display panel, the flexible display panel includes a display area and a bending area at the periphery of the display area; a support disposed on one side of the display area The support layer is arranged away from the light-emitting side of the flexible display panel; wherein, the support layer is provided with an isolation groove running through the support layer in the first direction, and the isolation groove is set close to the bending area to isolate the support layers on both sides of the isolation groove.
  • the first direction is perpendicular to the thickness direction of the support layer and the bending axis of the bending region.
  • the support layers on both sides of the isolation groove are disconnected. Since the isolation groove is arranged close to the bending area, it can block the folded or rolled flexible display panel. During the process, the accumulated stress from the middle position is transmitted to the edge near the bending area, reducing the dislocation of the edge of the support layer near the bending area relative to the flexible display panel. If the side shift is too large, the flexible display panel at the corresponding position has insufficient supporting force and collapses.
  • the disclosure can reduce the risk of defects in the bending area, thereby reducing display defects and improving the reliability of the display module.
  • a display module and a display device provided by the present disclosure have been introduced in detail above, and the principles and implementations of the present disclosure are described with specific examples. The descriptions of the above embodiments are only used to help understand the present disclosure method and its core idea; at the same time, for those skilled in the art, according to the idea of the present disclosure, there will be changes in the specific implementation and application scope. public restrictions.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps not listed in a claim.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the present disclosure can be implemented by means of hardware comprising several different elements and by means of suitably programmed computers. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware.
  • the use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

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  • General Physics & Mathematics (AREA)
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Abstract

显示模组及显示装置。显示模组包括:柔性显示面板(61),柔性显示面板(61)包括显示区域(AA)以及位于显示区域(AA)外围的弯折区域(BB);设置在显示区域(AA)一侧的支撑层(62),支撑层(62)背离柔性显示面板(61)的出光侧设置;其中,支撑层(62)在第一方向上设置有贯穿支撑层(62)的隔离槽(63),隔离槽(63)靠近弯折区域(BB)设置,用于将隔离槽(63)两侧的支撑层(62)隔断,第一方向垂直于支撑层(62)的厚度方向以及弯折区域(BB)的弯折轴(X)。通过在支撑层的第一方向上设置隔离槽,将隔离槽两侧的支撑层断开,由于隔离槽靠近弯折区域设置,因此可以阻断在折叠或卷曲柔性显示面板的过程中从中间位置开始积累的应力传输至靠近弯折区域的边缘,减小支撑层靠近弯折区域的边缘相对于柔性显示面板的错动量,减少显示不良。

Description

显示模组及显示装置
相关申请的交叉引用
本公开要求在2021年03月29日提交中国专利局、申请号为202110336950.1、名称为“一种显示模组及显示装置”的中国专利申请的优先权,其全部内容通过引用结合在本公开中。
技术领域
本公开涉及显示技术领域,特别是涉及一种显示模组及显示装置。
背景技术
随着科学技术的蓬勃发展,柔性面板逐渐实现了量产化、产品化。当前市场上有可折叠、可卷曲等各种形态的柔性面板热卖,为消费者带来了全新的终端体验。目前,还出现了柔性电池配合柔性显示模组的解决方案,通过将电池区域化,从而使电子设备具备局部或整体可柔的特征。
由于柔性显示面板较软,通常会在柔性面板的一侧设置支撑层,以提升面板的支撑性能,并对柔性面板进行保护。然而,在实际应用中,可折叠或可卷曲的柔性面板,经常产生显示不良。
概述
本公开提供了一种显示模组,所述显示模组包括:
柔性显示面板,所述柔性显示面板包括显示区域以及位于所述显示区域外围的弯折区域;
设置在所述显示区域一侧的支撑层,所述支撑层背离所述柔性显示面板的出光侧设置;其中,所述支撑层在第一方向上设置有贯穿所述支撑层的隔离槽,所述隔离槽靠近所述弯折区域设置,用于将所述隔离槽两侧的支撑层隔断,所述第一方向垂直于所述支撑层的厚度方向以及所述弯折区域的弯折轴。
在一种可选的实现方式中,所述隔离槽的延伸方向垂直于所述第一方向。
在一种可选的实现方式中,所述隔离槽的延伸轨迹线为曲线。
在一种可选的实现方式中,所述隔离槽内设置有填充物,所述填充物的弹性模量小于所述支撑层的弹性模量。
在一种可选的实现方式中,所述填充物的材料包括硅胶。
在一种可选的实现方式中,所述隔离槽与所述弯折区域之间的距离大于或等于7mm,且小于或等于15mm。
在一种可选的实现方式中,沿所述柔性显示面板的第一方向,所述隔离槽的宽度大于或等于1mm。
在一种可选的实现方式中,所述支撑层靠近所述弯折区域的边缘相对于所述显示区域靠近所述弯折区域的边缘缩进,且缩进量小于或等于0.5mm。
在一种可选的实现方式中,所述支撑层靠近所述弯折区域的边缘相对于所述显示区域靠近所述弯折区域的边缘凸出,且凸出量小于或等于0.5mm。
在一种可选的实现方式中,所述支撑层的厚度大于或等于30μm,且小于或等于50μm。
在一种可选的实现方式中,所述支撑层的材料为金属,所述金属的材质为不锈钢或形状记忆类合金。
在一种可选的实现方式中,所述弯折区域的弯折半径小于或等于400μm。
本公开提供了一种显示装置,所述显示装置包括任一实施例所述的显示模组。
上述说明仅是本公开技术方案的概述,为了能够更清楚了解本公开的技术手段,而可依照说明书的内容予以实施,并且为了让本公开的上述和其它目的、特征和优点能够更明显易懂,以下特举本公开的具体实施方式。
附图简述
为了更清楚地说明本公开实施例或相关技术中的技术方案,下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。需要说明的是,附图中的比例仅作为示意并不代表实际比例。
图1示出了相关技术中一种显示模组在非折叠状态下的剖面结构示意图;
图2示出了相关技术中一种显示模组在两种折叠状态下的剖面结构示意图;
图3示出了对显示模组进行双侧折叠的结构示意图;
图4示出了对显示模组进行单侧折叠的结构示意图;
图5示出了相关技术中显示模组在折叠状态下各膜层之间发生错动的示意图;
图6示出了本公开实施例提供的一种显示模组的剖面结构示意图;
图7示出了本公开实施例提供的一种支撑层的平面结构示意图。
详细描述
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
参照图1示出了相关技术中一种显示模组在非折叠状态下的剖面结构示意图,图2示出了该显示模组在两种折叠状态下的剖面结构示意图。对比图1和图2,可以看出,随着显示模组的折叠,由于显示模组中的支撑层12与显示面板11的弯曲半径不同,导致支撑层12相对于显示面板11发生错动。并且,由于越靠近支撑层12的边缘应力积累越大,因此边缘位置处的支撑层12错动量较大。当支撑层12向远离弯折区域13的一侧错动过大时,如图2中的a所示出的,可能导致显示面板11相应位置的支撑力不足而坍塌;当支撑层12朝向弯折区域13一侧错动时,如图2中的b所示出的,若错动量与弯折区域13的弯折半径相当,弯折区域13可能会受到支撑层12的挤压而损伤,引发显示不良风险。
发明人对柔性显示面板分别进行了双侧折叠(如图3所示)和单侧折叠(如图4所示)的力学仿真,根据仿真结果发现,双侧折叠引起的膜层间错动量大于单侧折叠引起的错动量。例如,参照图5,盖板51相对于光学胶膜层52的错动量由单侧折叠的229um增大至双侧折叠的268um,背膜53相对于支撑层54的错动量由单侧折叠的386um增大至双侧折叠的525um。由此可 见,由于柔性显示面板的折叠或卷曲而产生的膜层间错动量不容忽视。
本公开一实施例提供了一种显示模组,参照图6,该显示模组包括:柔性显示面板61,柔性显示面板61包括显示区域AA以及位于显示区域AA外围的弯折区域BB;设置在显示区域AA一侧的支撑层62,支撑层62背离柔性显示面板61的出光侧设置;其中,支撑层62在第一方向上设置有贯穿支撑层62的隔离槽63,隔离槽63靠近弯折区域BB设置,用于将隔离槽63两侧的支撑层62隔断,第一方向垂直于支撑层62的厚度方向以及弯折区域BB的弯折轴X。
当弯折区域BB的弯折轴X的轴向垂直于图6所示出的剖面。当弯折区域BB的形状为半圆时,弯折轴X贯穿半圆的圆心位置,如图6所示出的。
柔性显示面板61可以为有机发光二极管(Organic Light-Emitting Diode,OLED)结构的基板,也可以是其它柔性基板,本实施例对此不作具体限定。
本实施例中,显示区域AA的柔性显示面板61可折叠或卷曲,本实施例对此不作限定。
支撑层62的材料可以为金属等能起到支撑作用的材质,本实施例对此不作限定。其中,金属的材质可以为不锈钢或形状记忆类合金等。
由于柔性显示面板61较软,支撑层62可以起到支撑柔性显示面板61的作用,提升显示模组的支撑性,同时对柔性显示面板61进行保护。
可选地,支撑层62的厚度可以大于或等于30μm,且小于或等于50μm,本实施例对此不作限定。
柔性显示面板61还可以包括位于弯折区域BB外围的绑定区域CC,绑定区域CC中可以设置有驱动芯片DDIC以及FPC等,如图6所示。弯折区域BB用于将绑定区域CC弯折至柔性显示面板61的背面。
本实施例提供的显示模组,通过在支撑层62的第一方向上设置贯穿支撑层的隔离槽63,将隔离槽63两侧的支撑层62断开,使得隔离槽63两侧的支撑层62不连续,由于隔离槽63靠近弯折区域BB设置,因此可以阻断在折叠或卷曲柔性显示面板61的过程中从中间位置开始积累的应力传输至支撑层62靠近弯折区域BB的边缘,减小支撑层62靠近弯折区域BB的边缘处的应力积累,减小支撑层62靠近弯折区域BB的边缘相对于柔性显示面板61的错动量,一方面可以防止支撑层62向远离弯折区域BB的一侧错动过大导致相应 位置处的柔性显示面板61支撑力不足而坍塌,另一方面可以防止可以支撑层62朝向弯折区域BB的一侧错动过大导致支撑层62凸出而损伤弯折区域BB,本公开可以降低弯折区域BB产生不良的风险,从而减少显示不良,提高显示模组的信赖性。
发明人对本实施例提供的显示模组进行双侧折叠的情况进行了力学仿真,通过在支撑层62上靠近弯折区域BB的位置设置隔离槽63,支撑层62靠近弯折区域BB的边缘相对于柔性显示面板61的错动量由525um降低到216um,有效降低了支撑层62的错动量,并且弯折区域BB没有发生坍塌或损伤等问题。
在一种可选的实现方式中,参照图7,隔离槽63的延伸方向可以垂直于第一方向。图7中示出的隔离槽的形状为条状,延伸轨迹线为直线。在实际应用中,隔离槽63的延伸轨迹线还可以为曲线等,本实施例对此不作限定。当隔离槽63的延伸方向垂直于第一方向时,可以降低制作工艺难度。
在一种可选的实现方式中,隔离槽63内可以设置有填充物,填充物的弹性模量小于支撑层62的弹性模量。例如,填充物的材料可以包括硅胶等弹性模量较小的材料,本实施例对此不作限定。通过在隔离槽63内填充弹性模量较小的材料,可以吸收应力积累,减少支撑层62靠近弯折区域BB边缘位置处的应力,从而降低支撑层62靠近弯折区域BB的边缘的错动量。
为了避免应力累积量过大,同时防止形成边缘段差,参照图7,隔离槽63与弯折区域BB之间的距离d1可以大于或等于7mm,且小于或等于15mm。这样,不会由于隔离槽63距离弯折区域BB太远,而导致位于隔离槽63靠近弯折区域BB一侧的支撑层62内部仍有较大的应力积累传播至支撑层62靠近弯折区域BB的边缘,导致错动量大。同时,也不会由于隔离槽63距离弯折区域BB太近,导致柔性显示面板61受到边缘段差的影响。
参照图7,沿柔性显示面板61的第一方向,隔离槽63的宽度d2可以大于或等于1mm。需要说明的是,隔离槽63沿第一方向上的尺寸在不影响支撑层62的支撑性能的前提下可以尽量做大,从而避免在显示模组弯曲过程中由于膜层错动导致隔离槽63两侧的支撑层发生接触,具体尺寸可以根据实际需求设定,本实施例对此不作限定。
支撑层62靠近弯折区域BB的边缘可以相对于显示区域AA靠近弯折区 域BB的边缘缩进,缩进量可以小于或等于0.5mm。这样,可以确保柔性显示面板61的显示区域有足够支撑,并且支撑层62不会妨碍弯折区域BB。
支撑层62靠近弯折区域BB的边缘可以相对于显示区域AA靠近弯折区域BB的边缘凸出,凸出量可以小于或等于0.5mm。这样,可以确保柔性显示面板61的显示区域有足够支撑,并且支撑层62不会妨碍弯折区域BB。
在一种可选的实现方式中,参照图6,弯折区域BB的弯折半径R可以小于或等于400μm,本实施例对此不作限定。
在具体实现中,在使用显示模组的过程中,支撑层62靠近弯折区域BB的边缘相对于柔性显示面板61的凸出量可以始终小于弯折区域BB的弯折半径,确保支撑层62相对于柔性显示面板61凸出时也不会损伤弯折区域BB。
本实施例中,显示模组还可以包括:层叠设置在柔性显示面板61的显示区域AA背离支撑层62一侧的偏光片、光学胶膜层以及封装盖板,偏光片靠近显示区域AA设置;以及设置在柔性显示面板61的显示区域AA与支撑层62之间的背膜。其中,偏光片可以为圆偏振片,降低显示模组的反射率。
本公开另一实施例还提供了一种显示装置,该显示装置可以包括任一实施例所述的显示模组。
需要说明的是,本实施例中的显示装置可以为:电子纸、手机、平板电脑、电视机、笔记本电脑、数码相框、导航仪等任何具有2D或3D显示功能的产品或部件。
本公开实施例提供了一种显示模组及显示装置,其中,显示模组包括:柔性显示面板,柔性显示面板包括显示区域以及位于显示区域外围的弯折区域;设置在显示区域一侧的支撑层,支撑层背离柔性显示面板的出光侧设置;其中,支撑层在第一方向上设置有贯穿支撑层的隔离槽,隔离槽靠近弯折区域设置,用于将隔离槽两侧的支撑层隔断,第一方向垂直于支撑层的厚度方向以及弯折区域的弯折轴。本公开技术方案,通过在支撑层的第一方向上设置隔离槽,将隔离槽两侧的支撑层断开,由于隔离槽靠近弯折区域设置,因此可以阻断在折叠或卷曲柔性显示面板的过程中从中间位置开始积累的应力传输至靠近弯折区域的边缘,减小支撑层靠近弯折区域的边缘相对于柔性显示面板的错动量,一方面可以防止支撑层向远离弯折区域的一侧错动过大导致相应位置处的柔性显示面板支撑力不足而坍塌,另一方面可以防止可以支 撑层朝向弯折区域的一侧错动过大导致支撑层凸出而损伤弯折区域,本公开可以降低弯折区域产生不良的风险,从而减少显示不良,提高显示模组的信赖性。
本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。
最后,还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上对本公开所提供的一种显示模组及显示装置进行了详细介绍,本文中应用了具体个例对本公开的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本公开的方法及其核心思想;同时,对于本领域的一般技术人员,依据本公开的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本公开的限制。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着,结合实施例描述的特定特征、结构或者特性包括在本公开的至少一个实施例中。此外,请注意,这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中,说明了大量具体细节。然而,能够理解,本公开的实施例可以在没有这些具体细节的情况下被实践。在一些实例中,并未详细示出公知的方法、结构和技术,以便不模糊对本说明书的理解。
在权利要求中,不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本公开可以借 助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中,这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
最后应说明的是:以上实施例仅用以说明本公开的技术方案,而非对其限制;尽管参照前述实施例对本公开进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。

Claims (13)

  1. 一种显示模组,其中,所述显示模组包括:
    柔性显示面板,所述柔性显示面板包括显示区域以及位于所述显示区域外围的弯折区域;
    设置在所述显示区域一侧的支撑层,所述支撑层背离所述柔性显示面板的出光侧设置;其中,所述支撑层在第一方向上设置有贯穿所述支撑层的隔离槽,所述隔离槽靠近所述弯折区域设置,用于将所述隔离槽两侧的支撑层隔断,所述第一方向垂直于所述支撑层的厚度方向以及所述弯折区域的弯折轴。
  2. 根据权利要求1所述的显示模组,其中,所述隔离槽的延伸方向垂直于所述第一方向。
  3. 根据权利要求1所述的显示模组,其中,所述隔离槽的延伸轨迹线为曲线。
  4. 根据权利要求1至3任一项所述的显示模组,其中,所述隔离槽内设置有填充物,所述填充物的弹性模量小于所述支撑层的弹性模量。
  5. 根据权利要求4所述的显示模组,其中,所述填充物的材料包括硅胶。
  6. 根据权利要求1至5任一项所述的显示模组,其中,所述隔离槽与所述弯折区域之间的距离大于或等于7mm,且小于或等于15mm。
  7. 根据权利要求1至6任一项所述的显示模组,其中,沿所述柔性显示面板的第一方向,所述隔离槽的宽度大于或等于1mm。
  8. 根据权利要求1至7任一项所述的显示模组,其中,所述支撑层靠近所述弯折区域的边缘相对于所述显示区域靠近所述弯折区域的边缘缩进,且缩进量小于或等于0.5mm。
  9. 根据权利要求1至7任一项所述的显示模组,其中,所述支撑层靠近所述弯折区域的边缘相对于所述显示区域靠近所述弯折区域的边缘凸出,且凸出量小于或等于0.5mm。
  10. 根据权利要求1至9任一项所述的显示模组,其中,所述支撑层的厚度大于或等于30μm,且小于或等于50μm。
  11. 根据权利要求1至10任一项所述的显示模组,其中,所述支撑层的 材料为金属,所述金属的材质为不锈钢或形状记忆类合金。
  12. 根据权利要求1至11任一项所述的显示模组,其中,所述弯折区域的弯折半径小于或等于400μm。
  13. 一种显示装置,其中,所述显示装置包括权利要求1至12任一项所述的显示模组。
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