WO2021012467A1 - 框胶结构和显示面板的制作方法 - Google Patents

框胶结构和显示面板的制作方法 Download PDF

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Publication number
WO2021012467A1
WO2021012467A1 PCT/CN2019/115841 CN2019115841W WO2021012467A1 WO 2021012467 A1 WO2021012467 A1 WO 2021012467A1 CN 2019115841 W CN2019115841 W CN 2019115841W WO 2021012467 A1 WO2021012467 A1 WO 2021012467A1
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WO
WIPO (PCT)
Prior art keywords
adhesive
rubber
strips
strip
gap
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Application number
PCT/CN2019/115841
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English (en)
French (fr)
Inventor
周明军
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US16/615,692 priority Critical patent/US11686979B2/en
Publication of WO2021012467A1 publication Critical patent/WO2021012467A1/zh

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Classifications

    • 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
    • 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
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • 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
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the application relates to the field of electronic display, and in particular to a manufacturing method of a sealant structure and a display panel.
  • the main body of the display panel and the glass cover are usually bonded by thermoplastic glue.
  • Thermoplastic glue is a flexible solid and low viscosity at room temperature.
  • the strip can melt after being heated and solidify to form a solid with high viscosity when the temperature is reduced.
  • the adhesive strips used for bonding the display panel are usually formed by splicing four strip-shaped adhesive strips. As the width of the frame of the display panel gradually decreases, the width of the adhesive strips also decreases. Therefore, higher requirements are put forward for the splicing accuracy of the adhesive strips.
  • the gap between the adhesive strips is too large during splicing, the gap cannot be filled after the adhesive strips melt, and the display panel cannot be sealed. If the overlapping area of the adhesive strips is too large during splicing, the adhesive strips in the overlapping area will be too thick and cannot be completely melted, forming a splicing gap at the splicing place, which will also cause the display panel to fail to seal.
  • the present application provides a sealant structure and a manufacturing method of a display panel to solve the technical problem that the display body and the cover cannot be sealed.
  • the present application provides a frame glue structure.
  • the frame glue structure includes a plurality of rubber strips and a plurality of filling gels.
  • the plurality of rubber strips are adjacent end to end, and there is a gap between any two adjacent rubber strips.
  • the multiple filling colloids are located in the gap;
  • the plurality of adhesive strips and the plurality of filling colloids constitute a closed loop.
  • the widths of the plurality of rubber strips are the same.
  • the width of each of the gaps is less than or equal to twice the width of the rubber strip.
  • the plurality of filling colloids have fluidity before curing, and the volume of each filling colloid after being cured is greater than the volume of the gap where the filling colloid is located.
  • the filler is a curable adhesive.
  • the curable adhesive is an ultraviolet curable adhesive.
  • the material forming the adhesive strip is a thermoplastic adhesive.
  • the thermoplastic adhesive includes polyvinyl acetate, polyvinyl acetal, ethylene-vinyl acetate copolymer resin, vinyl chloride-vinyl acetate copolymer resin, perchloroethylene resin, polyacrylate, A combination of one or more of polyamide and polysulfone.
  • the sealant structure is rectangular, and the sealant strips constituting the sealant structure include a first adhesive strip, a second adhesive strip, a third adhesive strip, and a fourth adhesive strip. There are four gaps between the rubber strip, the second rubber strip, the third rubber strip and the fourth rubber strip.
  • this application also provides a manufacturing method of a display panel, the method including the following steps:
  • the display main body including a display area and a non-display area surrounding the display area;
  • a plurality of adhesive strips are arranged on the non-display area, the plurality of adhesive strips are adjacent end to end, and there is a gap between any two adjacent adhesive strips;
  • a plurality of filling colloids are arranged in the gap, and the plurality of rubber strips and the plurality of filling colloids form a closed loop;
  • the bonding unit is cooled and solidified, so that the cover plate and the display main body form a sealed space.
  • This application optimizes the shape of the rubber strips, provides gaps at the joints of the rubber strips, and arranges filling colloids in the gaps, thereby eliminating the overlap area between adjacent rubber strips and avoiding the rubber strips due to Conditions that cannot be melted due to uneven heating.
  • the width of the gap is much larger than the width of the adhesive strip, the tolerance range is large, and the alignment accuracy of the adhesive strip is low, which is convenient for pasting.
  • the technical solution of the present application can optimize the sealing effect of the display panel without increasing the process difficulty.
  • FIG. 1 is a schematic diagram of the structure of a display panel and a rubber strip in the prior art
  • Figure 2 is a cross-sectional view along the AA1 direction in Figure 1;
  • Figure 3 is a cross-sectional view of the display panel after the adhesive strips in Figure 2 are fused
  • Figure 4 is a cross-sectional view along the BB1 direction in Figure 1;
  • FIG. 5 is a cross-sectional view of the display panel after the adhesive strips in FIG. 4 are fused;
  • FIG. 6 is a schematic diagram of the structure of the display panel and the adhesive strip in a specific embodiment of the application;
  • Figure 7 is a cross-sectional view along the CC1 direction in Figure 6;
  • FIG. 8 is a schematic diagram of the structure of the display panel after the filling gel is arranged in the gap of the adhesive strip;
  • Figure 9 is a cross-sectional view along the CC1 direction in Figure 8.
  • FIG. 10 is a cross-sectional view of the display panel and the cover in FIG. 9 after being bonded.
  • the sealant structure includes a substrate 010 and a first adhesive strip 011, a second adhesive strip 012, a third adhesive strip 013, and a fourth adhesive strip 014 on the substrate 010.
  • the first rubber strip 011, the second rubber strip 012, the third rubber strip 013, and the fourth rubber strip 014 are arranged around the edge of the substrate 010.
  • the adhesive strip is a thermoplastic adhesive.
  • Thermoplastic glue is a flexible solid and low viscosity at room temperature.
  • the strip can melt after being heated and solidify to form a solid with high viscosity when the temperature is reduced. Since the adhesive strips during splicing are soft and easily deformed, the length of the adhesive strips can easily change under the action of external force when pasting on the substrate 010, causing gaps or overlaps between adjacent adhesive strips.
  • the second adhesive strip 012 overlaps with the adjacent first adhesive strip 011 and the fourth adhesive strip 014, and the width of the overlapping portion is equal to the width of the first adhesive strip 011 and the fourth adhesive strip 014.
  • the thickness of the overlap area is too thick, resulting in uneven heat distribution of the adhesive strips, and the adhesive strips near the overlap area cannot melt, forming air channels between adjacent adhesive strips, as shown in Figure 3. Shown.
  • the present application provides a sealant structure and a manufacturing method of a display panel to solve the technical problem that the display body and the cover cannot be sealed.
  • the sealant structure is used for bonding the display main body 10 and the cover 20.
  • the display main body 10 includes a display area and a non-display area surrounding the display area.
  • the sealant structure is arranged on the non-display area.
  • the cover plate 20 is attached to the display main body 10 by an adhesive unit formed by a frame glue structure, and forms a sealed space with the display main body 10.
  • the frame rubber structure includes a plurality of rubber strips and a plurality of filling gels 16, the plurality of rubber strips are adjacent end to end, there is a gap 15 between any two adjacent rubber strips, and the plurality of filling gels 16 are located at all.
  • the gap 15 is in.
  • the plurality of adhesive strips and the plurality of filling gels 16 constitute a closed loop.
  • a gap 15 is provided between adjacent adhesive strips, so as to avoid overlapping of adjacent adhesive strips. Due to the elimination of the overlapping area, the present application can avoid the air passage formed in the prior art due to the inability to melt the rubber strip in some areas.
  • a filling gel 16 is arranged in the gap 15 so that the rubber strip and the filling gel form a closed loop, which eliminates possible air channels in the bonding unit.
  • the rectangular frame glue structure is taken as an example for description, and correspondingly, the number of glue strips is four. It should be noted that the shape of the sealant structure and the number of adhesive strips in this embodiment are only used to illustrate the present invention, and cannot be construed as limiting the present invention.
  • the sealant structure is rectangular, and the sealant strips constituting the sealant structure include a first adhesive strip 11, a second adhesive strip 12, a third adhesive strip 13, and a fourth adhesive strip 14.
  • the widths of the first rubber strip 11, the second rubber strip 12, the third rubber strip 13 and the fourth rubber strip 14 are the same. Furthermore, there are four gaps 15 between the first rubber strip 11, the second rubber strip 12, the third rubber strip 13 and the fourth rubber strip 14.
  • the adhesive force of the filling gel 16 is smaller than that of the adhesive strip.
  • the volume of the gap 15 needs to be limited.
  • the adhesive strip is flexible, it is easy to deform when it is pasted. Therefore, the smaller the width of the gap 15 is, the higher the operation accuracy is required, and the operation difficulty increases accordingly.
  • the width of each gap 15 is less than or equal to twice the width of the adhesive strip.
  • the width of the rubber strip is between 3 mm and 10 mm.
  • the width of the rubber strip is usually 3 mm. Therefore, the maximum width of the gap 15 between two adjacent rubber strips generally cannot be greater than 5 mm.
  • the filling gel 16 has an initial state and a final state. In the initial state, the filling colloid 16 is liquid, and in the final state, the filling colloid 16 is solid.
  • the filler 16 is a curable adhesive, such as an ultraviolet curing adhesive.
  • the filling gel 16 in a liquid state has good fluidity and can completely fill the gap 15. After that, the filled colloid 16 in the initial state is processed, such as light, heating, etc., so that the filled colloid 16 becomes solid, and the final filled colloid 16 is formed. After curing, the filling gel 16 has stable properties and adhesion, and completely fills the gap 15.
  • the filler 16 is a curable adhesive, such as an ultraviolet curable adhesive.
  • the material forming the adhesive strip is a thermoplastic adhesive.
  • the thermoplastic adhesive includes one of polyvinyl acetate, polyvinyl acetal, ethylene-vinyl acetate copolymer resin, vinyl chloride-vinyl acetate copolymer resin, perchloroethylene resin, polyacrylate, polyamide, and polysulfone One or more combinations.
  • the present application also provides a method for manufacturing a sealant structure, which includes the following steps.
  • the rectangular frame glue structure is taken as an example for description, and correspondingly, the number of glue strips is four. It should be noted that the shape of the sealant structure and the number of adhesive strips in this embodiment are only used to illustrate the present invention, and cannot be construed as limiting the present invention.
  • a display main body 10 is provided.
  • the display main body 10 includes a display area and a non-display area surrounding the display area.
  • a first adhesive strip 11, a second adhesive strip 12, a third adhesive strip 13 and a fourth adhesive strip 14 are arranged on the non-display area.
  • the second rubber strip 12, the third rubber strip 13 and the fourth rubber strip 14 are adjacent to each other end to end, and there is a gap 15 between any two adjacent rubber strips.
  • a plurality of filling gels 16 are arranged in the gap 15, the first rubber strip 11, the second rubber strip 12, the third rubber strip 13, the fourth rubber strip 14 and Multiple filled gels 16 constitute a closed loop.
  • the filling gel 16 has an initial state and a final state. In the initial state, the filling colloid 16 is liquid, and in the final state, the filling colloid 16 is solid.
  • the filler 16 is a curable adhesive, such as an ultraviolet curing adhesive.
  • the filling gel 16 in a liquid state has good fluidity and can completely fill the gap 15. After that, the filled colloid 16 in the initial state is processed, such as light, heating, etc., so that the filled colloid 16 becomes solid, and the final filled colloid 16 is formed. After curing, the filling gel 16 has stable properties and adhesion, and completely fills the gap 15.
  • the first adhesive strip 11, the second adhesive strip 12, the third adhesive strip 13 and the fourth adhesive strip 14 are heated to melt and deform to fill the gap between the cover plate 20 and the display body 10. ⁇ gap 15.
  • the bonding unit is cooled to solidify, so that the cover plate 20 and the display body 10 form a sealed space.
  • This application optimizes the shape of the rubber strips, provides gaps at the joints of the rubber strips, and arranges filling colloids in the gaps, thereby eliminating the overlap area between adjacent rubber strips and avoiding the rubber strips due to Conditions that cannot be melted due to uneven heating.
  • the width of the gap is much larger than the width of the adhesive strip, the tolerance range is large, and the alignment accuracy of the adhesive strip is low, which is convenient for pasting.
  • the technical solution of the present application can optimize the sealing effect of the sealant structure without increasing the process difficulty.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种框胶结构和显示面板的制作方法，框胶结构包括多个胶条（11,12,13,14）和多个填充胶体（16），多个胶条（11,12,13,14）首尾相邻，任意两个相邻的胶条（11,12,13,14）之间具有间隙（15），多个填充胶体（16）位于间隙（15）中；其中，多个胶条（11,12,13,14）和多个填充胶体（16）构成一个闭合回路。

Description

框胶结构和显示面板的制作方法 技术领域
本申请涉及电子显示领域，尤其涉及一种框胶结构和显示面板的制作方法。
 背景技术
现有技术中，通常通过热塑性胶黏合显示面板的主体和玻璃盖板。热塑性胶在常温下为柔性固体且粘度较低。该胶条能够在被加热后融化，并且在温度降低后固化形成黏度很高的固体。现有技术中，对于矩形结构的显示面板，为了节约成本，用于黏合显示面板的胶条通常由四个条形胶条拼接形成。随着显示面板的边框宽度逐渐减小，胶条的宽度也随之减小，因此也对胶条的拼接精度提出了更高的要求。
 技术问题
参见图1，如果拼接时胶条间的间隙过大，胶条融化后无法填充所述间隙，则会导致显示面板无法密封。如果拼接时胶条重叠的面积过大，会导致重叠区的胶条过厚，无法全部融化，在拼接处形成拼接缝隙，同样会导致显示面板无法密封。
 技术解决方案
为解决上述问题，本申请提供了一种框胶结构和显示面板的制作方法，以解决显示主体和盖板无法密封的技术问题。
本申请提供了一种框胶结构，所述框胶结构包括多个胶条和多个填充胶体，所述多个胶条首尾相邻，任意两个相邻的胶条之间具有间隙，所述多个填充胶体位于所述间隙中；
其中，所述多个胶条和多个填充胶体构成一个闭合回路。
根据本申请的其中一个方面，所述多个胶条的宽度相同。
根据本申请的其中一个方面，每一个所述间隙的宽度小于或等于所述胶条宽度的两倍。
根据本申请的其中一个方面，所述多个填充胶体在固化之前具有流动性，且每一个填充胶体被固化后的体积大于该填充胶体所在的间隙的体积。
根据本申请的其中一个方面，所述填充胶体为可固化胶黏剂。
根据本申请的其中一个方面，所述可固化胶黏剂为紫外线固化胶。
根据本申请的其中一个方面，形成所述胶条的材料为热塑性胶黏剂。
根据本申请的其中一个方面，所述热塑性胶黏剂包括聚乙酸乙烯酯、聚乙烯醇缩醛、乙烯-乙酸乙烯共聚树脂、氯乙烯-乙酸乙烯共聚树脂、过氯乙烯树脂、聚丙烯酸酯、聚酰胺和聚砜中的一种或多种的组合。
根据本申请的其中一个方面，所述框胶结构为矩形，构成所述框胶结构的胶条包括第一胶条、第二胶条、第三胶条和第四胶条，所述第一胶条、第二胶条、第三胶条和第四胶条之间具有四个间隙。
相应的，本申请还提供了一种显示面板的制作方法，该方法包括以下步骤：
提供显示主体，所述显示主体包括显示区和环绕所述显示区的非显示区；
在所述非显示区上设置多个胶条，所述多个胶条首尾相邻，任意两个相邻的胶条之间具有间隙；
在所述间隙中设置多个填充胶体，所述多个胶条和多个填充胶体构成一个闭合回路；
加热所述胶条，使所述胶条融化并发生形变，填充所述盖板和所述显示主体之间的间隙；
冷却所述黏合单元使其固化，使所述盖板和所述显示主体构成密封空间。
 有益效果
本申请对胶条的形状进行了优化，在胶条的连接处设置间隙，并在所述间隙中设置了填充胶体，从而消除了相邻胶条之间的搭接区域，避免了胶条由于受热不均无法融化的情况。同时，间隙的宽度远大于胶条的宽度，容差范围大，对粘贴胶条的对准精度要求低，便于粘贴。本申请的技术方案能够在不增加工艺难度的同时优化显示面板的密封效果。
 附图说明
图1为现有技术中的显示面板和胶条的结构示意图；
图2为图1中沿AA1方向的剖面图；
图3为图2中的胶条融合后显示面板的剖面图
图4为图1中沿BB1方向的剖面图；
图5为图4中的胶条融合后显示面板的剖面图；
图6为本申请的一个具体实施例中的显示面板和胶条的结构示意图；
图7为图6中沿CC1方向的剖面图；
图8为在胶条的间隙中设置填充胶体之后的显示面板的结构示意图；
图9为图8中沿CC1方向的剖面图；
图10为图9中显示面板与盖板黏合之后的剖面图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
首先对现有技术进行简要说明。参见图1，所述框胶结构包括基板010和位于基板010上的第一胶条011、第二胶条012、第三胶条013和第四胶条014。所述第一胶条011、第二胶条012、第三胶条013和第四胶条014环绕所述基板010的边缘设置。
现有技术中，所述胶条为热塑性胶。热塑性胶在常温下为柔性固体且粘度较低。该胶条能够在被加热后融化，并且在温度降低后固化形成黏度很高的固体。由于拼接时的胶条柔软且易发生形变，因此在粘贴到基板010上时，胶条的长度很容易在外力的作用下发生改变，在相邻的胶条之间产生缝隙或彼此重叠。
参见图2，第二胶条012和相邻的第一胶条011和第四胶条014产生重叠，且重叠部分的宽度等于所述第一胶条011和第四胶条014的宽度。在与盖板020进行黏合时，由于重叠区域的厚度过厚，导致胶条的热量分布不均，重叠区域附近的胶条无法融化，在相邻的胶条之间形成空气通道，如图3所示。
参见图4，第三胶条011和相邻的第一胶条011和第四胶条014之间具有较大的间隙。由于所述间隙的宽度过大，融化后的胶条无法完全填充所述间隙，导致相邻的胶条之间形成空气通道，如图5所示。
为解决上述问题，本申请提供了一种框胶结构和显示面板的制作方法，以解决显示主体和盖板无法密封的技术问题。
参见图8、图9和图10，所述框胶结构用于黏合显示主体10和盖板20。所述显示主体10包括显示区和环绕所述显示区的非显示区。所述框胶结构设置在所述非显示区上。所述盖板20通过框胶结构构成的黏合单元贴附在所述显示主体10上，与所述显示主体10构成密封空间。
所述框胶结构包括多个胶条和多个填充胶体16，所述多个胶条首尾相邻，任意两个相邻的胶条之间具有间隙15，所述多个填充胶体16位于所述间隙15中。所述多个胶条和多个填充胶体16构成一个闭合回路。
本申请在相邻的胶条之间设置了间隙15，从而能够避免相邻的胶条彼此重叠。由于消除了重叠区，本申请能够避免现有技术中由于部分区域的胶条无法融化而形成的空气通道。同时，本申请通过在间隙15中设置填充胶体16使胶条和填充胶体构成闭合回路，消除了黏合单元中可能存在的空气通道。
本实施例中，以矩形框胶结构为例进行说明，对应的，胶条的数目为四条。需要说明的是，本实施例中的框胶结构的形状和胶条的数目仅用于说明本发明，不能解释为对本发明的限制。
参见图6和图7，所述框胶结构为矩形，构成所述框胶结构的胶条包括第一胶条11、第二胶条12、第三胶条13和第四胶条14，所述第一胶条11、第二胶条12、第三胶条13和第四胶条14的宽度相同。并且，所述第一胶条11、第二胶条12、第三胶条13和第四胶条14之间具有四个间隙15。
通常，填充胶体16的粘附力要小于胶条的粘附力。为了避免填充胶体16所占据的空间过大导致框胶结构的粘附力降低，需要对间隙15的容积进行限制。同时，由于胶条是柔性的，容易在粘贴的时候发生形变。因此，所述间隙15的宽度越小，所需要的操作精度也就越高，操作难度也相应的增加。为了在保证黏合单元的粘附力的同时降低操作难度，本实施例中，每一个所述间隙15的宽度小于或等于所述胶条宽度的两倍。
通常，所述胶条的宽度介于3毫米至10毫米之间，对于窄边框的框胶结构，所述胶条的宽度通常为3毫米。因此，相邻的两个胶条之间的间隙15的最大宽度通常不能大于5毫米。为了确保所述间隙15被完全填充，本申请中，所述填充胶体16具有初始状态和最终状态。处于初始状态时，所述填充胶体16为液态，处于最终状态时，所述填充胶体16为固态。优选的，所述填充胶体16为可固化胶黏剂，例如紫外线固化胶。
液态时的填充胶体16具有较好的流动性，能够完全填充所述间隙15。之后，对初始状态下的填充胶体16进行处理，例如光照、加热等，使所述填充胶体16变为固态，形成最终的填充胶体16。固化之后的填充胶体16性状和粘附力稳定，完全填充了所述间隙15。
本申请中，为了确保所述填充胶体16能够完全填充所述间隙15，每一个填充胶体16被固化后的体积大于该填充胶体16所在的间隙15的体积。本实施例中，所述填充胶体16为可固化胶黏剂，例如紫外线固化胶。形成所述胶条的材料为热塑性胶黏剂。所述热塑性胶黏剂包括聚乙酸乙烯酯、聚乙烯醇缩醛、乙烯-乙酸乙烯共聚树脂、氯乙烯-乙酸乙烯共聚树脂、过氯乙烯树脂、聚丙烯酸酯、聚酰胺和聚砜中的一种或多种的组合。
相应的，参加图6至图10，本申请还提供了一种框胶结构的制作方法，该方法包括以下步骤。
本实施例中，以矩形框胶结构为例进行说明，对应的，胶条的数目为四条。需要说明的是，本实施例中的框胶结构的形状和胶条的数目仅用于说明本发明，不能解释为对本发明的限制。
首先，提供显示主体10，所述显示主体10包括显示区和环绕所述显示区的非显示区。之后，参见图6和图7，在所述非显示区上设置第一胶条11、第二胶条12、第三胶条13和第四胶条14，所述第一胶条11、第二胶条12、第三胶条13和第四胶条14首尾相邻，任意两个相邻的胶条之间具有间隙15。
之后，参见图8和图9，在所述间隙15中设置多个填充胶体16，所述所述第一胶条11、第二胶条12、第三胶条13、第四胶条14和多个填充胶体16构成一个闭合回路。
为了确保所述间隙15被完全填充，本申请中，所述填充胶体16具有初始状态和最终状态。处于初始状态时，所述填充胶体16为液态，处于最终状态时，所述填充胶体16为固态。优选的，所述填充胶体16为可固化胶黏剂，例如紫外线固化胶。
液态时的填充胶体16具有较好的流动性，能够完全填充所述间隙15。之后，对初始状态下的填充胶体16进行处理，例如光照、加热等，使所述填充胶体16变为固态，形成最终的填充胶体16。固化之后的填充胶体16性状和粘附力稳定，完全填充了所述间隙15。
之后，加热所述第一胶条11、第二胶条12、第三胶条13和第四胶条14，使其融化并发生形变，填充所述盖板20和所述显示主体10之间的间隙15。
最后，参见图10，冷却所述黏合单元使其固化，使所述盖板20和所述显示主体10构成密封空间。
本申请对胶条的形状进行了优化，在胶条的连接处设置间隙，并在所述间隙中设置了填充胶体，从而消除了相邻胶条之间的搭接区域，避免了胶条由于受热不均无法融化的情况。同时，间隙的宽度远大于胶条的宽度，容差范围大，对粘贴胶条的对准精度要求低，便于粘贴。本申请的技术方案能够在不增加工艺难度的同时优化框胶结构的密封效果。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (10)

  1. 一种框胶结构，其中，所述框胶结构包括多个胶条和多个填充胶体，所述多个胶条首尾相邻，任意两个相邻的胶条之间具有间隙，所述多个填充胶体位于所述间隙中；
    其中，所述多个胶条和多个填充胶体构成一个闭合回路。
  2. 根据权利要求1所述的框胶结构，其中，所述多个胶条的宽度相同。
  3. 根据权利要求2所述的框胶结构，其中，每一个所述间隙的宽度小于或等于所述胶条宽度的两倍。
  4. 根据权利要求1所述的框胶结构，其中，所述多个填充胶体在固化之前具有流动性，且每一个填充胶体被固化后的体积大于该填充胶体所在的间隙的体积。
  5. 根据权利要求1所述的框胶结构，其中，所述填充胶体为可固化胶黏剂。
  6. 根据权利要求5所述的框胶结构，其中，所述可固化胶黏剂为紫外线固化胶。
  7. 根据权利要求1所述的框胶结构，其中，形成所述胶条的材料为热塑性胶黏剂。
  8. 根据权利要求7所述的框胶结构，其中，所述热塑性胶黏剂包括聚乙酸乙烯酯、聚乙烯醇缩醛、乙烯-乙酸乙烯共聚树脂、氯乙烯-乙酸乙烯共聚树脂、过氯乙烯树脂、聚丙烯酸酯、聚酰胺和聚砜中的一种或多种的组合。
  9. 根据权利要求1所述的框胶结构，其中，所述框胶结构为矩形，构成所述框胶结构的胶条包括第一胶条、第二胶条、第三胶条和第四胶条，所述第一胶条、第二胶条、第三胶条和第四胶条之间具有四个间隙。
  10. 一种显示面板的制作方法，其中，该方法包括以下步骤：
    提供显示主体，所述显示主体包括显示区和环绕所述显示区的非显示区；
    在所述非显示区上设置多个胶条，所述多个胶条首尾相邻，任意两个相邻的胶条之间具有间隙；
    在所述间隙中设置多个填充胶体，所述多个胶条和多个填充胶体构成一个闭合回路；
    加热所述胶条，使所述胶条融化并发生形变，形成黏合单元；
    冷却所述黏合单元使其固化，使所述盖板和所述显示主体构成密封空间。
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