WO2014201761A1 - 用于显示面板的导电封框胶、显示面板及显示装置 - Google Patents

用于显示面板的导电封框胶、显示面板及显示装置 Download PDF

Info

Publication number
WO2014201761A1
WO2014201761A1 PCT/CN2013/081608 CN2013081608W WO2014201761A1 WO 2014201761 A1 WO2014201761 A1 WO 2014201761A1 CN 2013081608 W CN2013081608 W CN 2013081608W WO 2014201761 A1 WO2014201761 A1 WO 2014201761A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
substrate
sealant
conductive
liquid crystal
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
Application number
PCT/CN2013/081608
Other languages
English (en)
French (fr)
Inventor
井杨坤
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.)
BOE Technology Group Co Ltd
Hefei BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei BOE Optoelectronics Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Hefei BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Publication of WO2014201761A1 publication Critical patent/WO2014201761A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/16—Materials and properties conductive
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/36—Micro- or nanomaterials
    • 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
    • H10K2102/331—Nanoparticles used in non-emissive layers, e.g. in packaging layer
    • 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 invention relates to the field of liquid crystals
  • the thickness of the surrounding liquid crystal cell is generally maintained by adding glass fiber for supporting the thickness of the box to the frame sealant, but it is also necessary to add gold ball particles for turning on the upper and lower substrates. .
  • it is necessary to mix two materials of glass fiber and gold ball particles in the sealant and it is inevitable that the support force of each part is inconsistent due to uneven mixing, and curing such a sealant on the periphery of the liquid crystal display panel may result in inconsistency in the thickness of the peripheral box.
  • causes peripheral gap defects which in turn affects the display effect of the liquid crystal display panel.
  • the presence of glass fibers and gold sphere particles also affects the curing of the sealant.
  • one of the objects of the present invention is to provide a conductive sealant which can stably maintain the thickness of the liquid crystal cell and can guide the upper and lower substrates.
  • Another object of the present invention is to provide a display panel using the above-described conductive sealant.
  • the present invention provides a conductive sealant for a display panel, the display panel includes a first substrate and a second substrate disposed opposite to each other, and the conductive sealant is cured on the first substrate and Between the second substrates, the conductive sealant comprises an insulating sealant and a plurality of conductive particles composed of carbon nanotubes doped in the insulating sealant.
  • the surface of the conductive particles has a plurality of protrusions.
  • the shape of the conductive particles includes a spherical shape and a cylindrical shape.
  • the conductive particles have a diameter of 3 ⁇ m to 3.5 ⁇ m.
  • the weight ratio of the insulating frame sealant to the conductive particles is 100:2 to 100:0,5.
  • the conductive particles are composed of a plurality of carbon nanotubes, and the diameter of the carbon nanotubes is smaller than
  • the display panel of the present invention comprises a first substrate, a second substrate, and a conductive sealant as described above which is cured between the first substrate and the second substrate.
  • the display panel is a liquid crystal display panel
  • the liquid crystal display panel further includes a liquid crystal layer disposed between the first substrate and the second substrate, and the conductive sealant is cured to form a support structure.
  • the support structure includes a first support structure and a second support structure, the first support structure is disposed around the liquid crystal display panel, and the second support structure is disposed on a display area of the liquid crystal display panel.
  • the display panel is a liquid crystal display panel
  • the liquid crystal display panel further includes a liquid crystal layer disposed between the first substrate and the second substrate, and the conductive sealant is cured to form a support structure.
  • the support structure is disposed around the liquid crystal display panel; and the display area of the liquid crystal display panel is provided with a column spacer.
  • the display device of the present invention includes the above display panel.
  • the conductive sealant for the display panel of the present invention comprises an insulating sealant and conductive particles composed of a plurality of carbon nanotubes doped therein, due to epoxy resin (one of the insulating sealant components) and carbon nano An interface strength of several hundred MPa can be formed between the tubes, the adhesion coefficient is increased, the generation of bubbles and gel breaks is reduced, and the interval between the two substrates can be maintained substantially the same.
  • FIG. 2 is a schematic view showing the microstructure of the conductive particles in the conductive sealant in the embodiment of the present invention
  • FIG. 2 is a schematic diagram of the stirring principle in the method for preparing the conductive sealant in the embodiment of the present invention
  • FIG. Schematic diagram of the panel
  • FIG. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Detailed ways
  • An embodiment of the conductive sealant of the present invention is used for a display panel.
  • the display panel includes a first substrate and a second substrate disposed opposite to each other, and a conductive sealant is cured between the first substrate and the second substrate, and the conductive sealant includes insulation.
  • a sealant and a plurality of conductive particles doped in the insulating sealant are composed of a plurality of carbon nanotubes.
  • Carbon nanotubes have typical lamellar hollow structure characteristics, and there is a certain angle between the layers constituting the carbon nanotubes.
  • the tube body of the carbon nanotubes is a quasi-circular tube structure, and most of them are composed of a pentagonal cross section.
  • the tubular body is composed of a hexagonal carbon ring microstructure unit, and the end cap portion is a polygonal structure composed of a pentagonal carbon ring, or a polygonal tapered multi-wall structure. It is a one-dimensional quantum material with a special structure (the radial dimension is nanometer scale, the axial dimension is on the order of micrometers, and both ends of the tube are substantially sealed).
  • Carbon nanotubes have good mechanical properties.
  • the tensile strength of carbon nanotubes is 50 ⁇ 200GPa, which is 100 times that of steel.
  • the density is only 1/6 of that of steel, at least one order of magnitude higher than that of conventional graphite fibers.
  • Its elastic modulus can be Up to lTPa, which is equivalent to the modulus of elasticity of diamond, which is about 5 times that of steel.
  • Carbon nanotubes have the same hardness as diamond, but have good flexibility and can be stretched.
  • carbon nanotubes also have good electrical conductivity due to the structure of the carbon nanotubes and the lamellar structure of the graphite.
  • the carbon fiber is used to replace the glass fiber and the conductive gold ball mixed in the sealant, and the good mechanical properties and electrical conductivity of the carbon nanotube are utilized, thereby maintaining the thickness of the liquid crystal cell and turning on the upper and lower substrates of the display panel. Since the epoxy resin (one of the insulating frame sealant components) and the carbon nanotubes can form an interface strength of several hundred MPa, the adhesion coefficient is increased, and the occurrence of bubbles and gel breaks can be reduced.
  • the surface of the conductive particles has protrusions 41, which can pierce the insulating frame sealant when the box is pressed, and respectively contact the electrodes of the first substrate and the second substrate, which is more advantageous for the first substrate and the first substrate.
  • the conduction of the two substrates since the conductive particles having protrusions on the surface are more favorable for electrical conduction between the first substrate and the second substrate, a smaller amount of conductive particles composed of carbon nanotubes may be used with respect to the conductive particles having no protrusions on the surface thereof. Therefore, the mixing of the insulating sealant and the conductive particles is more sufficiently ensured and the thickness of the liquid crystal cell is stably maintained.
  • the surface protrusions are more conducive to piercing the sealant, and the particles are in contact with the particles, which is not only more favorable for mutual charge exchange, but also the surface protrusion increases the connection area between the conductive particles and the sealant, which is reflected in the macroscopic effect.
  • the connection is stronger and more stable in the glue before uncured, not easy to move.
  • the weight ratio of the insulating sealant to the carbon nanotubes doped therein is 100:1 or more.
  • the conductive particles composed of a plurality of carbon nanotubes have a spherical or cylindrical shape. If the shape of the conductive particles is spherical, there is no difference in the upright or flat state when the vacuum is pressed; if the shape of the conductive particles is cylindrical, when the vacuum is pressed, it will be subjected to a force of 2.5K to make it flat. Lying, this will ensure that the thickness of the liquid crystal cell is maintained.
  • the conductive particles are exemplified by a spherical shape or a cylindrical shape.
  • the shape of the conductive particles is not limited thereto, and may be any shape such as a polygonal shape according to actual needs.
  • the diameter of the conductive particles may alternatively be 3 ⁇ to 3.5 ⁇ , which can match the thickness of the liquid crystal cell.
  • the weight ratio of the insulating sealant to the carbon nanotubes doped therein is from 100:2 to 100:0.5, more preferably 100:1, and the carbon nanotubes are excessive, and there is some excess in the process of pressing the box.
  • the carbon nanotubes cause the box thickness to be too large; the carbon nanotubes are too small, which is not conducive to guiding the first substrate and the second substrate.
  • the thickness of the cell is too small; thus ensuring the thickness of the liquid crystal cell while facilitating the first substrate and The conduction of the second substrate can also prevent the insulating sealant from excessively contaminating the liquid crystal.
  • the diameter of the doped carbon nanotubes is less than 6 nm to improve the electrical conductivity of the conductive sealant.
  • the diameter of the carbon nanotubes is greater than 6 nm, the electrical conductivity is decreased.
  • the diameter is less than 6 nm, the carbon nanotubes can be seen.
  • the conductive sealant is cured to form a support structure for maintaining stability between the first substrate and the second substrate Set the box thickness and prevent liquid crystal leakage.
  • the position at which the support structure is disposed between the first substrate and the second substrate can also be arbitrarily adjusted as needed.
  • the support structure may be disposed at a position of the display area between the first substrate and the second substrate, or at an outer circumference between the first substrate and the second substrate, or at a periphery of the display area and the periphery. Set them all.
  • This embodiment is described by taking a liquid crystal display panel as an example.
  • the support structure of the above material is not limited thereto, and may be applied to other types of display panels, such as electronic paper, OLED (Organic Light Emitting Diode).
  • a display panel such as a display panel with upper and lower substrates.
  • the conductive sealant constituting the embodiment of the present invention requires a process such as mixing, stirring, and defoaming.
  • Mixing mixing the insulating sealant and conductive particles; the stirring and defoaming processes can be carried out simultaneously, and the mixed insulating sealant and conductive particles are placed in a rotating machine that can rotate and revolve, as shown in Fig. 2,
  • the centrifugal force causes convection inside the agitator, and the agitated material is thereby stirred and mixed by the convection.
  • the centrifugal force experienced by the convection at the ⁇ point is the vector sum of the revolutionary centrifugal force and the autoclavatory centrifugal force.
  • De-foaming is carried out by rotation by rotation; where M represents mass, r represents rotation radius of rotation, R represents the radius of revolution of the revolution, and ⁇ represents angular velocity.
  • the tools such as the filling cartridge and the medicine spoon can be ultrasonically cleaned for 10 minutes, wiped with a dust-free cloth of isopropyl alcohol, and dried with an air gun.
  • Let ⁇ then use an electronic balance to weigh the amount of conductive particles composed of a plurality of carbon nanotubes and the insulating frame sealant, mix the weighed insulating frame sealant with the conductive particles, and put them into the rubber cylinder. Put the cartridge into a rotating machine that can rotate and revolve.
  • an embodiment of the present invention further provides a display panel, which is illustrated by taking a liquid crystal display panel as an example, including a color film substrate 1 and an array substrate 2 disposed opposite to each other, and a color filter substrate 1 and an array substrate 2; Between the liquid crystal layer 3. A conductive sealant for maintaining the thickness of the liquid crystal cell is further disposed between the color filter substrate 1 and the array substrate 2. After the conductive sealant is cured, a support structure is formed.
  • the support structure includes a first support structure 4 and a second support structure 5.
  • the first support structure 4 is disposed around the liquid crystal panel for maintaining the thickness of the periphery of the liquid crystal cell
  • the second support structure 5 is disposed in the display area of the liquid crystal panel for maintaining the thickness of the display area of the liquid crystal cell.
  • the conductive sealant comprises an insulating sealant and a plurality of conductive particles doped in the insulating sealant, and the conductive particles are composed of a plurality of carbon nanotubes. It should be noted that the embodiment of the present invention does not limit the number of the second supporting structures 5, and may be selected according to actual needs.
  • the first substrate is a color film substrate
  • the second substrate is schematically illustrated as an array substrate.
  • the first substrate may be an array substrate
  • the second substrate may be It is a color filter substrate
  • the first substrate is a color film integrated array substrate
  • the second substrate is a common substrate, which is not limited herein.
  • the first substrate and the second substrate respectively correspond to the upper and lower substrates.
  • an embodiment of the present invention further provides a display panel, which is exemplified by a liquid crystal display panel, including a color film substrate ⁇ and an array substrate 2 ′ disposed opposite to each other, and a color filter substrate ⁇ and an array. Liquid crystal layer 3' between the substrates 2'.
  • a conductive sealant for maintaining the thickness of the liquid crystal cell is also disposed between the color filter substrate ⁇ and the array substrate 2'. After the conductive sealant is cured, a support structure 4' is formed, and the support structure 4' is disposed around the liquid crystal display panel for maintaining the thickness of the periphery of the liquid crystal cell.
  • the conductive sealant comprises an insulating sealant and a plurality of conductive particles in the insulating sealant, and the conductive particles are composed of a plurality of carbon nanotubes.
  • the display panel further includes a column spacer 5' for maintaining the thickness of the liquid crystal cell in the display area of the liquid crystal display panel. Since the sealant is easy to contaminate the liquid crystal, before the liquid crystal dropping process, the columnar spacer is disposed on the display area of the color filter substrate of the display panel, and the column spacer is generally a common resin material, preferably different from The resin material of the epoxy resin material of the insulating frame sealant is used to reduce the possibility of contamination of the liquid crystal.
  • Embodiments of the present invention also provide a display device including the display panel as described above.
  • the structure of the liquid crystal panel refers to the embodiment of the display panel described above, and details are not described herein again.
  • the structure of other parts of the display device can be referred to the prior art, and will not be described in detail herein.
  • the display device can be: a product or a component having any display function such as a liquid crystal panel, an electronic paper, an OLED panel, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

一种用于显示面板的导电封框胶、显示面板及显示装置，显示面板包括相对设置的第一基板和第二基板（1，2），导电封框胶（4，5）固化在第一基板和第二基板（1，2）之间，导电封框胶（4，5）包括绝缘封框胶和掺杂在绝缘封框胶中的由碳纳米管构成的多个导电粒子。由于环氧树脂（绝缘封框胶成分之一）和碳纳米管之间可形成数百MPa的界面强度，增加了粘合系数，减少气泡与断胶的产生，且能够维持两基板（1，2）之间的各处间隔基本一致。

Description

本发明涉及液晶领域，
胶的显示面板及显示装置 f
匕
目前液晶显示装置 （Liquid Crystal Display, LCD ) 制造业中维持周边液 晶盒厚一般通过在封框胶中加入用于支撑盒厚的玻璃纤维，但为导通上、下基 板还需要加入金球粒子。但是这样需要在封框胶中混入玻璃纤维和金球粒子两 种物质，难免由于混合不均匀造成各部位支撑力不一致，将这样的封框胶固化 在液晶显示面板周边会导致周边盒厚不一致， 造成周边间隙缺陷，进而影响液 晶显示面板的显示效果。而玻璃纤维和金球粒子的存在同时也影响了封框胶的 固化。
针对现有技术存在的问题，本发明的目的之一在于提供一种既能够稳定维 持液晶盒厚又能够导遥上、 下基板的导电封框胶。
本发明的另一目的在于提供采用上述导电封框胶的显示面板。
本发明的再一目的在于提供具有上述显示面板的显示装置。
为实现上述目的， 本发明提供一种 ^于显示面板的导电封框胶，所述显示 面板包括相对设置的第一基板和第二基板，所述导电封框胶固化在所述第一基 板和所述第二基板之间， 其中， 所述导电封框胶包括绝缘封框胶和掺杂在所述 绝缘封框胶中的由碳纳米管构成的多个导电粒子。
迸一歩， 所述导电粒子的表面具有多个突起。
进一步， 所述导电粒子的形状包括球形和圆柱形。
迸一歩， 所述导电粒子的直径为 3μπι〜3.5μηι。
进一步， 所述绝缘封框胶和所述导电粒子的重量比为 100:2到 100:0,5。 迸一步， 所述导电粒子由多个碳纳米管构成， 所述碳纳米管的直径小于 本发明的显示面板， 包括第一基板、第二基板和固化在所述第一基板和第 二基板之间的如上所述的导电封框胶。
进一步， 所述显示面板为液晶显示面板，所述液晶显示面板还包括设置在 所述第一基板和所述第二基板之间的液晶层，所述导电封框胶固化后形成支撑 结构，所述支撑结构包括第一支撑结构和第二支撑结构，所述第一支撑结构设 置在所述液晶显示面板的四周，所述第二支撑结构设置在液晶显示面板的显示 区域。
迸一步， 所述显示面板为液晶显示面板，所述液晶显示面板还包括设置在 所述第一基板和所述第二基板之间的液晶层，所述导电封框胶固化后形成支撑 结构，所述支撑结构设置在液晶显示面板的四周； 所述液晶显示面板的显示区 域设置有柱状隔垫物。
本发明的显示装置， 包括上述显示面板。
本发明的用于显示面板的导电封框胶包括绝缘封框胶和掺杂于其中的由 多个碳纳米管组成的导电粒子， 由于环氧树脂（绝缘封框胶成分之一）和碳纳 米管之间可形成数百 MPa的界面强度， 增加了粘结系数， 减少气泡与断胶的 产生， 且能够维持两基板之间的各处间隔基本一致。
Pf†图说明
图 i为本发明实施例中导电封框胶中导电粒子的微观结构示意图； 图 2为本发明实施例中导电封框胶制备方法中搅拌原理示意图； 图 3为本发明实施例中一种显示面板的结构示意图；
图 4为本发明实施例中另一种显示面板的结构示意图。 具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作迸一步详细描述。 以 下实施例用于说明本发明的具体实施方式， 但不用来限制本发明的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本发明所属领域 内具有一般技能的人士所理解的遥常意义。本发明专利申请说明书以及权利要 求书中使用的 "第一 "、 "第二 "以及类似的词语并不表示任何顺序、 数量或者重 要性， 而只是用来区分不同的组成部分。 同样， "一个"、 "一"或"该"等类似词 语也不表示数量限制， 而是表示存在至少一个。 "包括 "或者 "包含 "等类似的词 语意指出现在 "包括 "或者 "包含 "前面的元件或者物件涵盖出现在 "包括 "或者 "包含 "后面列举的元件或者物件及其等同，并不排除其他元件或者物件。 "上"、 "下"、 "左"、 "右"等仅用于表示相对位置关系， 当被描述对象的绝对位置改变 后， 则该相对位置关系也可能相应地改变。
本发明导电封框胶的实施例用于显示面板，显示面板包括相对设置第一基 板和第二基板， 在第一基板和第二基板之间固化有导电封框胶， 导电封框胶包 括绝缘封框胶和掺杂于绝缘封框胶中的多个导电粒子。绝缘封框胶即为普通的 封框胶， 主要成分一般为环氧树脂。而掺杂于绝缘封框胶中的导电粒子是由多 个碳纳米管构成。
碳纳米管具有典型的层状中空结构特征，构成碳纳米管的层片之间存在一 定的夹角， 碳纳米管的管身是准圆管结构， 并且大多数由五边形截面所组成。 管身由六边形碳环微结构单元组成， 端帽部分由含五边形的碳环组成的多边 形结构， 或者称为多边锥形多壁结构。 是一种具有特殊结构（径向尺寸为纳米 量级， 轴向尺寸为微米量级、 管子两端基本上都封口） 的一维量子材料。 它主 要由呈六边形排列的碳原子构成数层到数十层的同轴圆管。层与层之间保持固 定的距离， 直径一般为 2〜20nm。碳纳米管具有良好的力学性能， 碳纳米管抗 拉强度达到 50〜200GPa,是钢的 100倍， 密度却只有钢的 1/6， 至少比常规石 墨纤维高一个数量级； 它的弹性模量可达 lTPa， 与金刚石的弹性模量相当， 约为钢的 5倍。碳纳米管的硬度与金刚石相当， 却拥有良好的柔韧性， 可以拉 伸。此外， 由于碳纳米管的结构与石墨的片层结构相 ， 碳纳米管还具有良好 的导电性能。
本发明实施例利用碳纳米管代替混入封框胶中的玻璃纤维与导电金球，利 用碳纳米管良好的力学性能与导电性能， 时起到维持液晶盒厚并且导通显示 面板的上下基板的作用， 并且由于环氧树脂（绝缘封框胶成分之一）和纳米碳 管之间可形成数百 MPa的界面强度， 因此又增加了粘合系数， 可以减少气泡 与断胶的发生。此外， 由于绝缘封框胶中只混入碳纳米管一种物质， 相比在绝 缘封框胶中混入玻璃纤维与导电金球两种物质更容易混合均匀，使各位置的力 学性能基本一致， 从而保证了液晶面板中各个位置处的液晶盒厚基本一致。
优选地， 如图 1所示， 导电粒子的表面具有突起 41， 可以在压盒时刺穿 绝缘封框胶， 并分别与第一基板和第二基板的电极接触， 更利于第一基板和第 二基板的导通。迸一步地， 由于表面具有突起的导电粒子更利于第一基板与第 二基板的电导通，所以相对于使用其表面没有突起的导电粒子， 可以使用更少 量的由碳纳米管构成的导电粒子，从而更加充分地保证绝缘封框胶与导电粒子 的混合均匀以及稳定维持液晶盒厚。此外， 表面突起更有利于刺穿封框胶， 粒 子与粒子相接触日寸， 不仅更有利于互相的电荷交换， 而且表面突出使导电粒子 与封框胶的连接面积增加， 体现在宏观效果就是连接更加牢固， 并且在未固化 以前， 在胶内更稳定， 不容易移动。 例如， 当导电粒子的表面具有突起时， 绝 缘封框胶和其中掺杂的碳纳米管的重量比为 100: 1以上。
优选地， 由多个碳纳米管构成的所述导电粒子的形状为球形或圆柱形。如 果导电粒子的形状为球形， 在真空压盒时， 就没有直立或平躺状态的区别； 如 果导电粒子的形状为圆柱形， 在真空压盒时， 会受到 2.5K 的力的作用使其 平躺，这样可以保证维持液晶盒厚的均一。本实施例中以导电粒子为球形或圆 柱形加以举例说明， 但导电粒子的形状并不局限于此， 可以根据实际需要为多 边形等任意形状。
优选地， 如果导电粒子的形状为球形或圆柱形， 导电粒子的直径可选择地 为 3 μπι〜3.5μηι, 这样可以和液晶盒厚相匹配。
优选地， 绝缘封框胶和其中掺杂的碳纳米管的重量比为 100:2到 100:0.5 , 更优选为 100: 1 , 碳纳米管过多， 在压盒过程中就会有一些过剩的碳纳米管导 致盒厚过大； 碳纳米管过少， 不利于导遥第一基板和第二基板.， 同时还会导致 盒厚过小； 这样可以保证液晶盒厚同时利于第一基板和第二基板的导通，还可 以避免绝缘封框胶过多污染液晶。
优选地，掺杂的碳纳米管的直径小于 6nm，以提高导电封框胶的导电性能, 当碳纳米管的直径大于 6nm时， 导电性能下降； 当直径小于 6nm时， 碳纳米 管可以被看成具有良好导电性能的一维量子导线。
导电封框胶固化后形成支撑结构，用于保持第一基板和第二基板之间的稳 定盒厚和防止液晶泄露。支撑结构在第一基板和第二基板之间的设置位置也可 以根据需要进行任意调整。例如， 支撑结构可以设置在第一基板和第二基板之 间的靠显示区域位置， 也可以设置在第一基板和第二基板之间的外 四周处， 也可以在靠显示区域和外围四周处均进行设置。本实施例以液晶显示面板为例 进行说明，但上述材质的支撑结构并不局限于此， 也可以应用在其它各类显示 面板中， 如电子纸、 OLED ( Organic Light Emitting Diode , 有机发光二极管） 显示面板等带有上、 下基板的显示面板。
构成本发明实施例的导电封框胶需要迸行混胶、搅拌和脱泡等工序。混胶: 将绝缘封框胶和导电粒子混合； 搅拌和脱泡工序可以同时进行， 将混合的绝缘 封框胶和导电粒子放入可以自转和公转的旋转机中， 如图 2所示， 以离心力使 搅拌物内部发生对流， 搅拌物由此对流被搅拌混合。 该对流在 Α 点所受的离 心力为公转离心力和自传离心力的矢量和。
公转离心力： F::::MR Oi 2
自转离心力 ： f ::::Mr co2 2，
通过自转进行搅拌， 通过公转进行脱泡； 式中 M代表质量， r代表自转离 心运动半径， R代表公转离心运动半径， ω代表角速度。
优选地，在将导电粒子加入绝缘封框胶之前还可对填充用胶筒以及药勺等 工具进行超声清洗 10分钟， 用蘸异丙醇的无尘布擦拭千净， 并用气枪吹干后 再使 ^，然后用电子天平称量出由多个碳纳米管构成的导电粒子与绝缘封框胶 的量， 将称量好的绝缘封框胶与导电粒子混合在一起， 放入胶筒内， 将胶筒放 入可以自转加公转的旋转机中。
如图 3所示， 本发明实施例还提供一种显示面板， 以液晶显示面板为例进 行说明， 包括相对设置的彩膜基板 1和阵列基板 2， 以及设置于彩膜基板 1和 阵列基板 2之间的液晶层 3。在彩膜基板 1和阵列基板 2之间还设置有用于维 持液晶盒厚的导电封框胶。导电封框胶固化后形成支撑结构， 支撑结构包括第 一支撑结构 4和第二支撑结构 5， 第一支撑结构 4设置在液晶面板的四周， 用 于维持液晶盒周边的厚度， 第二支撑结构 5设置在液晶面板的显示区域，用于 维持液晶盒显示区域的厚度。导电封框胶包括绝缘封框胶和掺杂于绝缘封框胶 中的多个导电粒子， 并且该导电粒子是由多个碳纳米管构成。 需要说明的是， 本发明实施例并未对第二支撑结构 5的数量迸行限定， 可 以根据实际需要自行选择。
需要说明的是， 本发明的实施例中仅以第一基板为彩膜基板，第二基板为 阵列基板迸行示意解释； 但在实际应用中， 可以是第一基板为阵列基板， 第二 基板为彩膜基板； 也可以是第一基板为彩膜集成的阵列基板， 第二基板为普通 基板， 在此不作限定。 并且第一基板和第二基板分别对应上、 下基板。
如图 4所示， 本发明实施例还提供另一种显示面板， 以液晶显示面板为例 进行说明，包括相对设置的彩膜基板 Γ和阵列基板 2'，以及设置于彩膜基板 Γ 和阵列基板 2'之间的液晶层 3'。 在彩膜基板 Γ和阵列基板 2'之间还设置有用 于维持液晶盒厚的导电封框胶。导电封框胶固化后形成支撑结构 4' ,支撑结构 4'设置在液晶显示面板的四周， 用于维持液晶盒周边的厚度。 导电封框胶包括 绝缘封框胶和惨杂于绝缘封框胶中的多个导电粒子，并且该导电粒子是由多个 碳纳米管构成。 另外， 显示面板还包括柱状隔垫物 5'， 用于维持液晶显示面板 显示区域的液晶盒厚。 由于封框胶容易对液晶产生污染， 因此在进行液晶滴注 工艺前，在显示面板的彩膜基板显示区域设置有柱状隔垫物， 柱状隔垫物一般 为普通的树脂材料， 优选为不同于绝缘封框胶所 ^的环氧树脂材料的树脂材 料， 以减小对液晶产生污染的可能性。
本发明实施例还提供了一种显示装置， 包括如上所述的显示面板。 其中， 液晶面板的结构参照上述显示面板的实施例， 在此不再赘述。 另外， 显示装置 其他部分的结构可以参考现有技术， 对此本文不再详细描述。该显示装置可以 为： 液晶面板、 电子纸、 OLED面板、 液晶电视、 液晶显示器、 数码相框、 手 机、 平板电脑等具有任何显示功能的产品或部件。
以上实施例只是实现本发明的具体方式，并不是对本发明的技术方案的唯 一限定， 本领域技术人员根据本发明的主要思想所作出的任意变形， 均不应认 为脱离本发明权利要求所保护的范围。

Claims

1. 一种用于显示面板的导电封框胶， 所述显示面板包括相对设置的第一 基板和第二基板， 所述导电封框胶固化在所述第一基板和所述第二基板之间， 其中，所述导电封框胶包括绝缘封框胶和惨杂在所述绝缘封框胶中的由碳纳米 管构成的多个导电粒子。
2. 如权利要求 1 所述的导电封框胶， 其中， 所述导电粒子的表面具有多 个突起。
3. 如权利要求 1 所述的导电封框胶， 其中， 所述导电粒子的形状包括球 形和圆柱形。
4. 如权利要求 3 所述的导电封框胶， 其中， 所述导电粒子的直径为 3μπι〜3.5μιιι。
5. 如权利要求 1 所述的导电封框胶， 其中， 所绝缘封框胶和所述导电粒 子的重量比为 100:2到 100:0.5。
6. 如权利要求 1 所述的导电封框胶， 其中， 所述导电粒子由多个碳纳米 管构成， 所述碳纳米管的直径小于 6ιπη。
7. 一种显示面板， 其中， 包括第一基板、 第二基板和固化在所述第一基 板和第二基板之间的如权利要求 1-6中任一项所述的导电封框胶。
8. 如权利要求 7所述的显示面板， 其中， 所述显示面板为液晶显示面板， 所述液晶显示面板还包括设置在所述第一基板和所述第二基板之间的液晶层， 所述导电封框胶固化后形成支撑结构，所述支撑结构包括第一支撑结构和第二 支撑结构，所述第一支撑结构设置在所述液晶显示面板的四周，所述第二支撑 结构设置在液晶显示面板的显示区域。
9. 如权利要求 7所述的显示面板， 其中， 所述显示面板为液晶显示面板， 所述液晶显示面板还包括设置在所述第一基板和所述第二基板之间的液晶层， 所述导电封框胶固化后形成支撑结构，所述支撑结构设置在液晶显示面板的四 周； 所述液晶显示面板的显示区域设置有柱状隔垫物。
10. 一种显示装置， 其中， 包括如权利要求 7- 9任一项所述的显示面板。
PCT/CN2013/081608 2013-06-20 2013-08-16 用于显示面板的导电封框胶、显示面板及显示装置 Ceased WO2014201761A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310247319.X 2013-06-20
CN201310247319XA CN103309092A (zh) 2013-06-20 2013-06-20 用于显示面板的导电封框胶、显示面板及显示装置

Publications (1)

Publication Number Publication Date
WO2014201761A1 true WO2014201761A1 (zh) 2014-12-24

Family

ID=49134474

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/081608 Ceased WO2014201761A1 (zh) 2013-06-20 2013-08-16 用于显示面板的导电封框胶、显示面板及显示装置

Country Status (2)

Country Link
CN (1) CN103309092A (zh)
WO (1) WO2014201761A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115373171A (zh) * 2022-08-24 2022-11-22 业成科技（成都）有限公司 封装结构、显示屏及显示装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104793404B (zh) * 2015-04-24 2018-09-11 合肥京东方光电科技有限公司 一种显示面板及其液晶显示装置
TWI564637B (zh) * 2015-07-27 2017-01-01 立景光電股份有限公司 液晶顯示面板及其製造方法
CN105137671B (zh) * 2015-10-12 2018-09-07 京东方科技集团股份有限公司 液晶盒、液晶盒的制备方法以及显示面板
CN106935724B (zh) * 2015-12-29 2018-12-07 昆山国显光电有限公司 Oled显示面板的封装结构及封装方法
CN105807475B (zh) * 2016-05-03 2019-08-30 京东方科技集团股份有限公司 彩膜基板及其制备方法、显示面板及显示装置
CN107022332A (zh) * 2017-03-29 2017-08-08 京东方科技集团股份有限公司 封框胶及其制备方法、显示面板和显示装置
CN108983505B (zh) * 2018-07-13 2023-10-20 京东方科技集团股份有限公司 显示装置及其制造方法、封框胶
CN111025779A (zh) * 2018-10-09 2020-04-17 咸阳彩虹光电科技有限公司 一种改善液晶面板制程的装置及其制作方法
CN109445156A (zh) * 2018-12-24 2019-03-08 惠科股份有限公司 显示面板、显示装置及显示面板制造方法
CN110473654B (zh) * 2019-06-11 2021-08-06 惠科股份有限公司 一种导电粒子及其制备方法和一种显示面板
CN110112323B (zh) * 2019-06-14 2022-05-13 京东方科技集团股份有限公司 一种oled封装结构、封装方法及显示器件
CN112037656B (zh) 2020-09-11 2022-06-21 京东方科技集团股份有限公司 一种显示装置和显示装置的绑定检测方法
CN116047817B (zh) * 2023-01-17 2025-06-10 惠科股份有限公司 显示装置制备方法及显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0651337A (ja) * 1992-08-03 1994-02-25 Smk Corp 電気回路の接続構造
US6525799B1 (en) * 1998-11-27 2003-02-25 Nanox Corporation Liquid crystal display device having spacers with two sizes and metal films and protrusions
CN1782795A (zh) * 2004-12-02 2006-06-07 索尼株式会社 液晶装置和液晶显示器及液晶投影仪
KR20080079866A (ko) * 2007-02-28 2008-09-02 엘지디스플레이 주식회사 도전성 실런트와 이를 사용하는 액정표시장치용 액정패널
CN102253536A (zh) * 2011-07-29 2011-11-23 南京中电熊猫液晶显示科技有限公司 液晶显示装置
CN102314027A (zh) * 2010-06-30 2012-01-11 上海天马微电子有限公司 液晶显示面板
CN102331642A (zh) * 2011-09-22 2012-01-25 深圳市华星光电技术有限公司 液晶显示面板及其制作方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101354501B (zh) * 2007-07-26 2011-07-20 北京京东方光电科技有限公司 导电封框胶制备方法
CN101923256B (zh) * 2010-07-30 2012-01-18 南京中电熊猫液晶显示科技有限公司 液晶显示器的制造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0651337A (ja) * 1992-08-03 1994-02-25 Smk Corp 電気回路の接続構造
US6525799B1 (en) * 1998-11-27 2003-02-25 Nanox Corporation Liquid crystal display device having spacers with two sizes and metal films and protrusions
CN1782795A (zh) * 2004-12-02 2006-06-07 索尼株式会社 液晶装置和液晶显示器及液晶投影仪
KR20080079866A (ko) * 2007-02-28 2008-09-02 엘지디스플레이 주식회사 도전성 실런트와 이를 사용하는 액정표시장치용 액정패널
CN102314027A (zh) * 2010-06-30 2012-01-11 上海天马微电子有限公司 液晶显示面板
CN102253536A (zh) * 2011-07-29 2011-11-23 南京中电熊猫液晶显示科技有限公司 液晶显示装置
CN102331642A (zh) * 2011-09-22 2012-01-25 深圳市华星光电技术有限公司 液晶显示面板及其制作方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115373171A (zh) * 2022-08-24 2022-11-22 业成科技（成都）有限公司 封装结构、显示屏及显示装置

Also Published As

Publication number Publication date
CN103309092A (zh) 2013-09-18

Similar Documents

Publication Publication Date Title
CN103309092A (zh) 用于显示面板的导电封框胶、显示面板及显示装置
US20240246284A1 (en) Three-dimensional (3d) printed composite structure and 3d printable composite ink formulation
Cao et al. Beyond skin pressure sensing: 3D printed laminated graphene pressure sensing material combines extremely low detection limits with wide detection range
Wu et al. Multifunctional polymer nanocomposites reinforced by aligned carbon nanomaterials
Zhou et al. Continuously fabricated transparent conductive polycarbonate/carbon nanotube nanocomposite films for switchable thermochromic applications
CN101498865B (zh) 液晶显示屏
Hong et al. Ultra‐stretchable kirigami piezo‐metamaterials for sensing coupled large deformations
US4705360A (en) Liquid crystal display cell and method for manufacturing thereof
CN101354298B (zh) 基于导电高分子敏感膜的压阻式传感器探头及其制备方法
US9862170B2 (en) Method for transferring carbon nanotube array and method for forming carbon nanotube structure
Gui et al. A facile route to isotropic conductive nanocomposites by direct polymer infiltration of carbon nanotube sponges
KR101693774B1 (ko) 탄소 나노튜브 투명 복합전극의 제조 방법
TW201323325A (zh) 奈米碳管膜的製備方法
CN102331642A (zh) 液晶显示面板及其制作方法
CN106219516A (zh) 一种溶液静置法制备定向排布单臂碳纳米管的方法
US8142838B2 (en) Method for making liquid crystal display screen
KR101253553B1 (ko) 투명 도전성 필름 및 그 제조방법
WO2020061808A1 (en) Flexible display apparatus and hardness-enhancing layer for enhancing surface hardness and mechanical strength of flexible display panel
Cao et al. DIW 3D Printing Aligned Catkins to Access Significant Enhanced Responsive Ionogel
TW201405199A (zh) 具有觸控功能的液晶模組的製備方法
CN106881043B (zh) 一种双重乳粒单分散装置
CN101078830A (zh) 液晶显示装置及其制造方法
JP5002778B2 (ja) 透明導電性膜基材の製造方法及び透明積層体の製造方法
CN103472611B (zh) 一种液晶显示面板及其制作方法、显示装置
WO2025039810A1 (zh) 一种柔性压力传感器及其制备方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13887528

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13887528

Country of ref document: EP

Kind code of ref document: A1