WO2020147494A1 - 用于显示装置的垫片及显示装置 - Google Patents

用于显示装置的垫片及显示装置 Download PDF

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Publication number
WO2020147494A1
WO2020147494A1 PCT/CN2019/126279 CN2019126279W WO2020147494A1 WO 2020147494 A1 WO2020147494 A1 WO 2020147494A1 CN 2019126279 W CN2019126279 W CN 2019126279W WO 2020147494 A1 WO2020147494 A1 WO 2020147494A1
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Prior art keywords
gasket
display device
display panel
display
bending
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PCT/CN2019/126279
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English (en)
French (fr)
Inventor
付超
黄世花
王静
李伟
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Priority to US16/957,704 priority Critical patent/US11575112B2/en
Publication of WO2020147494A1 publication Critical patent/WO2020147494A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W90/00—Package configurations
    • 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
    • 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
    • H10K59/8794—Arrangements for heating and cooling
    • 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

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a gasket used in a display device and a display device.
  • Pad Bending is a process technology widely used in the production of organic electroluminescent display panels (Organic Electroluminesecent Display, OLED) type flexible display panels. This process can achieve narrow bezels and maximize screen-to-body ratio.
  • Pad Bending requires the use of spacers in the bending area for structural support to avoid physical fracture of the OLED panel or damage to the internal signal circuit due to the small bending angle during bending.
  • the material of the gasket used in the existing bending area is not conducive to heat dissipation and conduction, and will cause poor display of the display area of the OLED panel that contacts the gasket after bending (Pad Bending).
  • the present disclosure provides a gasket for a display device, including a body having a plurality of through hole structures penetrating the body in the same direction.
  • the body has a first part and a second part, the first part and the second part are an integral structure, and the structure of the second part is an arc structure.
  • the plurality of through hole structures are closely arranged.
  • the shape of the cross section of the through hole structure is triangle, square, circle or polygon.
  • the polygon includes a hexagon.
  • the material of the body includes polyterephthalate plastic.
  • the material of the body further includes a material with better thermal conductivity than the polyterephthalate plastic.
  • the material having better thermal conductivity than the polyterephthalate plastic includes graphite, carbon fiber, or a combination of graphite and carbon fiber.
  • the present disclosure also provides a display device, including a display panel, the display panel has a bending structure that is bent toward the back of the display panel, and the spacer is located between the bending structure and the Between the display panels facing the bending structure, the spacer is the spacer according to any one of the above embodiments.
  • the bending structure has an arc-shaped area
  • the first part of the body corresponds to a display area close to the bending structure
  • the second part of the body fills the arc-shaped area
  • the extending direction of the through hole structure is perpendicular to the display surface of the display panel.
  • the extending direction of the through hole structure is parallel to the display surface of the display panel.
  • FIG. 1 is a schematic diagram of the structure of a display panel in the related art
  • FIG. 2 is a schematic diagram of another structure of a display panel in the related art
  • Figure 3 is a schematic diagram of the structure of a gasket in the related art
  • FIG. 4 is a schematic diagram of the structure of a gasket provided by an embodiment of the disclosure.
  • FIG. 5 is one of the schematic cross-sectional structure diagrams of the through hole structure provided by the embodiment of the disclosure.
  • FIG. 6 is the second schematic diagram of the cross-sectional structure of the through-hole structure provided by the embodiment of the disclosure.
  • FIG. 7 is the third schematic diagram of the cross-sectional structure of the through-hole structure provided by the embodiments of the disclosure.
  • FIG. 8 is the fourth cross-sectional structure diagram of the through-hole structure provided by the embodiments of the disclosure.
  • FIG. 9 is one of structural schematic diagrams of a display device provided by an embodiment of the disclosure.
  • FIG. 10 is the second structural diagram of the display device provided by the embodiment of the disclosure.
  • the flexible circuit board FPC, the driver chip IC and other components are bent to the back of the display panel through a bending process (Pad Bending).
  • FIG. 1 is a schematic top view of the structure of the display panel before the bending process
  • FIG. 2 is a schematic cross-sectional structure of the display panel after the bending process
  • FIG. 3 is a schematic view of the structure of the spacer in the prior art.
  • the display panel includes a display area AA and a bending area BB, and a flexible circuit board FPC and a driving chip IC located in the bending area BB.
  • the product after the bending process is in a reliable environment or other harsh environments (such as high temperature, high humidity), the driver chip IC heats significantly when working, and the pixels of the OLED display panel heat when working, so they are bent during a certain period of time
  • the heat accumulation in the area BB is more, which causes the temperature of the bending area BB to rise faster.
  • the structure and material of the gasket used in the existing bending zone BB are not conducive to heat dissipation and conduction. As shown in Figure 3, the structure of the gasket in the prior art is a dense structure, and the material is PET.
  • the embodiments of the present disclosure provide a gasket for a display device and a display device, which are used to solve the problem that the gasket in the prior art is not conducive to heat dissipation and conduction, resulting in poor display of the display panel.
  • an embodiment of the present disclosure provides a gasket for a display device.
  • the gasket includes a body 11 having a plurality of through holes passing through the body 11 in the same direction. Structure 01.
  • the embodiments of the present disclosure can produce the following beneficial technical effects: by arranging the body of the gasket for the display device to have a plurality of through-hole structures, the through-hole structure facilitates the dissipation and conduction of heat, so that no pads will appear.
  • the display panel area corresponding to the slice has poor display.
  • the body 11 may optionally have a first part A and a second part B.
  • the first part A and the second part B are an integral structure, and the The structure of the second part B is an arc structure.
  • the display device with a narrow frame needs to bend the flexible circuit board FPC, the driver chip IC and other components behind the display panel.
  • the shape of the bending area is generally an arc structure. Since the present disclosure sets the structure of the second part B of the body 11 of the gasket as an arc structure, the second part B of the arc structure can be formed in the arc area of the bending area.
  • the bending structure can be bent along the second part B when bending, so that the second part completely fills the arc-shaped area, which can further prevent the display panel from being physically displayed when the angle is too small during bending. Broken or damaged internal signal line.
  • both the first part A and the second part B of the body 11 may have a through hole structure 01.
  • FIG. 4 of the embodiment of the present disclosure only illustrates that the first part A has the through hole structure 01.
  • the through-hole structures 01 are closely arranged.
  • the cross-sectional shape of the through-hole structure may be polygonal or circular.
  • the cross-sectional shape of the through-hole structure may be triangular, square, or hexagonal.
  • the cross-sectional shape of the through hole structure 01 is, for example, a polygon.
  • the cross-sectional shape of the through hole structure 01 is, for example, a circle.
  • the cross-sectional shape of the through hole structure 01 is, for example, a square.
  • the cross-sectional shape of the through hole structure 01 is, for example, a triangle.
  • the polygon may include a hexagon.
  • the cross-sectional shape of the through-hole structure 01 can also be other polygons, as long as the cross-sectional shape of the through-hole structure 01 is a ring, it is within the protection scope of the present disclosure, and no examples are given here.
  • the material of the body 11 includes polyterephthalic acid plastic.
  • the material of the body may also include a material with a thermal conductivity better than that of polyterephthalic plastic.
  • the thermal conductivity of PET material is 0.2W/m ⁇ K
  • the thermal conductivity of carbon fiber material is 400 ⁇ 700W/m ⁇ K
  • the thermal conductivity of graphite material is 135W/m ⁇ K. Therefore, in the above-mentioned gasket provided by the embodiments of the present disclosure, the material with better thermal conductivity than polyterephthalate plastic may include graphite, carbon fiber, or a combination of graphite and carbon fiber. That is, graphite, carbon fiber or a combination of graphite and carbon fiber with good thermal conductivity can be added to the polyterephthalate plastic as the material of the gasket.
  • graphite and carbon fiber themselves have high heat resistance and good mechanical properties, so the gasket made of the above-mentioned mixed materials can quickly dissipate and conduct the heat in the corresponding area of the gasket, and reduce the display panel area corresponding to the gasket. Bad problem.
  • an embodiment of the present disclosure also provides a display device.
  • the display device includes a display panel 2.
  • the display panel has a bend that is bent toward the back of the display panel.
  • the spacer 1 is located between the bending structure 3 and the display panel opposite to the bending structure 3, and the spacer 1 is any kind of spacer provided in the embodiments of the disclosure. Since the principle of solving the problem of the display device is similar to that of any of the aforementioned gaskets 1, the implementation of the display device can refer to the implementation of the aforementioned gasket 1, and the repetition will not be repeated.
  • the bending structure 3 has an arc-shaped area
  • the first part A of the body 11 corresponds to the display area close to the bending structure 3
  • the second part B of the body 11 is filled Curved area.
  • the second part B of the body 11 can further prevent the display panel from being physically broken or the internal signal lines damaged when the angle is too small when bent.
  • the extending direction of the through hole structure 01 may be perpendicular to the display surface 4 of the display panel.
  • the extending direction of the through hole structure 01 is parallel to the display surface 4 of the display panel.
  • the extension direction of the through hole structure 01 is not limited to the above two, and may also have a certain inclination angle with respect to the display surface of the display panel. As long as the body 11 of the gasket has the through-hole structure 01, it belongs to the protection scope of the present disclosure, and no examples are given here.
  • the above-mentioned display device provided by the embodiment of the present disclosure may be any product or component with a display function, such as a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator.
  • a display function such as a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator.
  • the other indispensable components of the display device are understood by those of ordinary skill in the art, and will not be repeated here, nor should they be used as a limitation to the present disclosure.
  • the through-hole structure facilitates heat dissipation and conduction, so that no The area of the display panel corresponding to the spacer has a poor display.

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种用于显示装置的垫片及显示装置，所述垫片（1）包括本体（11），本体（11）具有沿同一方向贯穿本体（11）的多个通孔结构（01）。所述显示装置包括显示面板（2），所述显示面板（2）具有向所述显示面板（2）的背面弯折的弯折结构（3），所述垫片（1）位于所述弯折结构（3）与所述弯折结构（3）相对的所述显示面板（2）之间。

Description

用于显示装置的垫片及显示装置
相关申请的交叉参考
本公开主张在2019年1月17日在中国提交的中国专利申请号No.201910044024.X的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示技术领域，特别是涉及一种用于显示装置的垫片及显示装置。
背景技术
弯折工艺(Pad Bending)是一种广泛应用于有机电致发光显示面板(Organic Electroluminesecent Display，OLED)类型的柔性显示面板上的生产制程工艺，此工艺可以实现窄边框和实现最大屏占比。弯折工艺(Pad Bending)需要在弯折区域使用垫片来进行结构支撑，避免因弯折时弯折角度过小导致OLED面板出现物理断裂或者内部信号线路损坏。但是，现有弯折区域使用的垫片的材质不利于热量的散发和传导，会导致经过弯折(Pad Bending)后与垫片接触的OLED面板的显示区域的显示不良。
发明内容
一方面，本公开提供了一种用于显示装置的垫片，包括本体，所述本体具有沿同一方向贯穿所述本体的多个通孔结构。
可选地，所述本体具有第一部分和第二部分，所述第一部分与所述第二部分为一体结构，并且所述第二部分的结构为弧形结构。
可选地，所述多个通孔结构紧密排列。
可选地，所述通孔结构的横截面的形状为三角形、方形、圆形或多边形。
可选地，所述多边形包括六边形。
可选地，所述本体的材料包括聚对苯二甲酸类塑料。
可选地，所述本体的材料还包括导热性能优于所述聚对苯二甲酸类塑料 的材料。
可选地，所述导热性能优于所述聚对苯二甲酸类塑料的材料包括石墨、碳纤维或石墨与碳纤维的组合。
另一方面，本公开还提供了一种显示装置，包括显示面板，所述显示面板具有向所述显示面板的背面弯折的弯折结构，所述垫片位于所述弯折结构与所述弯折结构相对的所述显示面板之间，所述垫片为上述实施例中任一项所述的垫片。
可选地，所述弯折结构具有弧形区域，所述本体的第一部分与靠近所述弯折结构的显示区域相对应，所述本体的第二部分填充所述弧形区域。
可选地，所述通孔结构的延伸方向垂直于所述显示面板的显示面。
可选地，所述通孔结构的延伸方向平行于所述显示面板的显示面。
附图说明
图1为相关技术中的显示面板的结构示意图；
图2为相关技术中的显示面板的另一结构示意图；
图3为相关技术中的垫片的结构示意图；
图4为本公开实施例所提供的垫片的结构示意图；
图5为本公开实施例所提供的通孔结构的剖面结构示意图之一；
图6为本公开实施例所提供的通孔结构的剖面结构示意图之二；
图7为本公开实施例所提供的通孔结构的剖面结构示意图之三；
图8为本公开实施例所提供的通孔结构的剖面结构示意图之四；
图9为本公开实施例所提供的显示装置的结构示意图之一；
图10为本公开实施例所提供的显示装置的结构示意图之二。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。附图中各部件的形状和大小不反映真实比例，目的只是示意说明本公开内容。基于本公开中的实施例，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它实施例，都属于本公开保护的范围。
相关技术中，为了实现显示装置的窄边框化和实现屏幕的最大屏占比，通过将柔性电路板FPC、驱动芯片IC等元件通过弯折工艺(Pad Bending)弯折到显示面板的背后。图1为进行弯折工艺之前的显示面板的俯视结构示意图，图2为进行弯折工艺之后的显示面板的剖面结构示意图，图3为现有技术中的垫片的结构示意图。如图1至图3所示的，该显示面板包括显示区AA和弯折区BB，以及位于弯折区BB的柔性电路板FPC和驱动芯片IC。如图2所示的，将柔性电路板FPC、驱动芯片IC等元件弯折到显示面板的背后，需要在弯折区BB使用垫片1来进行结构支撑，避免因弯折时弯折角度过小导致显示面板出现物理断裂或者内部信号线路损坏。
弯折工艺后的产品在信赖性环境或者其他恶劣环境(如温度高、湿度大)下，驱动芯片IC工作时发热明显，以及OLED显示面板的像素工作时发热，所以在一定时间期间在弯折区BB的热量聚集较多，导致弯折区BB的温度升高较快。但是，现有弯折区BB使用的垫片的结构及材质均不利于热量的散发和传导。如图3所示的，现有技术中的垫片的结构是密实的结构，材料为PET材料。当弯折区BB的驱动芯片IC工作时和OLED显示面板工作时带来的热量快速聚集，以及热量不能及时散发和传导，会带来弯折工艺后与垫片1接触的OLED显示面板的显示区域AA的显示不良，如图1中的虚线框区域显示不良，对应图2中的折线环形区域显示不良。
有鉴于此，本公开实施例提供了一种用于显示装置的垫片及显示装置，用于解决现有技术中的垫片不利于热量的散发和传导，导致显示面板显示不良的问题。
具体地，本公开实施例提供了一种用于显示装置的垫片，如图4所示的，所述垫片包括本体11，所述本体11具有沿同一方向贯穿本体11的多个通孔结构01。
本公开的实施例可以产生如下有益的技术效果：通过将用于显示装置的垫片的本体设置成具有多个通孔结构，该通孔结构有利于热量的散发和传导， 从而不会出现垫片对应的显示面板区域发生显示不良的问题。
在本公开实施例所提供的上述垫片中，如图4所示，所述本体11可选地具有第一部分A和第二部分B，第一部分A与第二部分B为一体结构，并且第二部分B的结构为弧形结构。
当将本公开实施例提供的垫片应用在窄边框的显示装置中时，窄边框的显示装置需要将柔性电路板FPC、驱动芯片IC等元件弯折到显示面板的背后。为了避免弯折时弯折角度过小导致显示面板出现物理断裂或者内部信号线路损坏，需要在弯折区使用垫片来进行结构支撑，并且弯折区域的形状一般为弧形结构。由于本公开将所述垫片的本体11的第二部分B的结构设置为弧形结构，所以可以将弧形结构的第二部分B形成在弯折区域的弧形区域。通过合理设置垫片的大小，弯折结构在弯折时可以沿着第二部分B进行弯折，使第二部分完全填充弧形区域，可以进一步防止弯折时角度过小导致显示面板出现物理断裂或者内部信号线路损坏。
需要说明的是，所述本体11的第一部分A和第二部分B均可以具有通孔结构01。为了示意性说明，本公开实施例的图4仅示意出了第一部分A具有通孔结构01。
可选地，为了加快垫片对应的区域热量的散发和传导，在本公开实施例提供的上述垫片中，如图4所示，各通孔结构01紧密排列。
可选地，在本公开实施例提供的上述垫片中，通孔结构的横截面的形状可以为多边形或圆形。例如，所述通孔结构的横截面的形状可以为三角形、方形、或六边形。如图5所示的，通孔结构01的横截面的形状例如为多边形。如图6所示的，通孔结构01的横截面的形状例如为圆形。如图7所示的，通孔结构01的横截面的形状例如为方形。如图8所示的，通孔结构01的横截面的形状例如为三角形。
可选地，如图5所示的，所述多边形可以包括六边形。当然，通孔结构01的横截面的形状还可以为其它多边形，只要通孔结构01的横截面的形状为环形均为本公开保护的范围，在此不一一举例。
可选地，所述本体11的材料包括聚对苯二甲酸类塑料。
可选地，为了进一步加快垫片对应的区域热量的散发和传导，所述本体的材料还可以包括导热性能优于聚对苯二甲酸类塑料的材料。
PET材料的导热系数为0.2W/m·K，碳纤维材料的导热系数为400～700W/m·K，石墨材料的导热系数为135W/m·K。因此，在本公开实施例提供的上述垫片中，导热性能优于聚对苯二甲酸类塑料的材料可以包括石墨、碳纤维或石墨与碳纤维的组合。即可以在聚对苯二甲酸类塑料中复合添加导热性能较好的石墨、碳纤维或石墨与碳纤维的组合作为垫片的材料。而且，石墨和碳纤维本身具有高耐热性和良好的机械性能，所以采用上述混合材料制作的垫片能够快速将垫片对应区域的热量进行散发和传导，降低垫片对应的显示面板区域发生显示不良的问题。
基于同一发明构思，本公开实施例还提供了一种显示装置，如图9和图10所示，所述显示装置包括显示面板2，所述显示面板具有向显示面板的背面弯折的弯折结构3，垫片1位于弯折结构3与弯折结构3相对的显示面板之间，垫片1为本公开实施例所提供的任一种垫片。由于该显示装置解决问题的原理与前述任一种垫片1相似，因此该显示装置的实施可以参见前述垫片1的实施，重复之处不再赘述。
可选地，如图9和图10所示，弯折结构3具有弧形区域，所述本体11的第一部分A与靠近弯折结构3的显示区域相对应，本体11的第二部分B填充弧形区域。本体11的第二部分B可以进一步防止弯折时角度过小导致显示面板出现物理断裂或者内部信号线路损坏。
可选地，如图9所示，在本公开实施例提供的上述显示装置中，通孔结构01的延伸方向可以垂直于显示面板的显示面4。
可选地，如图10所示，在本公开实施例提供的上述显示装置中，通孔结构01的延伸方向平行于显示面板的显示面4。
通孔结构01的延伸方向不限于上述两种，还可以相对于显示面板的显示面具有一定的倾斜角度。只要垫片的本体11具有通孔结构01均属于本公开的保护范围，在此不一一举例。
本公开实施例提供的上述显示装置可以为平板电脑、电视机、显示器、 笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。对于该显示装置的其它必不可少的组成部分均为本领域的普通技术人员应该理解而具有的，在此不做赘述，也不应作为对本公开的限制。
在本公开实施例提供的上述用于显示装置的垫片及显示装置中，通过将垫片的本体设置成具有多个通孔结构，通孔结构有利于热量的散发和传导，从而不会出现垫片对应的显示面板区域发生显示不良的问题。
显然地，本领域的技术人员可以对本公开进行各种改进和变型而不脱离本公开的精神和范围。因此，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改进和变型在内。

Claims (12)

  1. 一种用于显示装置的垫片，包括本体，所述本体具有沿同一方向贯穿所述本体的多个通孔结构。
  2. 如权利要求1所述的垫片，其中，所述本体具有第一部分和第二部分，所述第一部分与所述第二部分为一体结构，并且所述第二部分的结构为弧形结构。
  3. 如权利要求1所述的垫片，其中，所述多个通孔结构紧密排列。
  4. 如权利要求1所述的垫片，其中，所述通孔结构的横截面的形状为圆形或多边形。
  5. 如权利要求4所述的垫片，其中，所述多边形包括三角形、方形和六边形。
  6. 如权利要求1所述的垫片，其中，构成所述本体的材料包括聚对苯二甲酸类塑料。
  7. 如权利要求6所述的垫片，其中，构成所述本体的材料还包括导热性能优于所述聚对苯二甲酸类塑料的材料。
  8. 如权利要求7所述的垫片，其中，所述导热性能优于所述聚对苯二甲酸类塑料的材料包括石墨、碳纤维或石墨与碳纤维的组合。
  9. 一种显示装置，包括显示面板，所述显示面板具有向所述显示面板的背面弯折的弯折结构，所述垫片位于所述弯折结构与所述弯折结构相对的所述显示面板之间，其中，所述垫片为如权利要求1-7中任一项所述的垫片。
  10. 如权利要求9所述的显示装置，其中，所述弯折结构具有弧形区域，所述本体的第一部分与靠近所述弯折结构的显示区域相对应，所述本体的第二部分填充所述弧形区域。
  11. 如权利要求9所述的显示装置，其中，所述通孔结构的延伸方向垂直于所述显示面板的显示面。
  12. 如权利要求9所述的显示装置，其中，所述通孔结构的延伸方向平行于所述显示面板的显示面。
PCT/CN2019/126279 2019-01-17 2019-12-18 用于显示装置的垫片及显示装置 Ceased WO2020147494A1 (zh)

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CN111402728B (zh) * 2020-03-24 2022-05-31 京东方科技集团股份有限公司 弯折垫片组件、柔性oled模组以及oled设备
CN114067673B (zh) * 2020-08-03 2025-01-24 群创光电股份有限公司 显示装置
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