WO2021012317A1 - 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
WO2021012317A1
WO2021012317A1 PCT/CN2019/099609 CN2019099609W WO2021012317A1 WO 2021012317 A1 WO2021012317 A1 WO 2021012317A1 CN 2019099609 W CN2019099609 W CN 2019099609W WO 2021012317 A1 WO2021012317 A1 WO 2021012317A1
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WO
WIPO (PCT)
Prior art keywords
strip
adhesive
rubber
rubber strip
area
Prior art date
Application number
PCT/CN2019/099609
Other languages
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
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 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 US16/616,983 priority Critical patent/US11981841B2/en
Publication of WO2021012317A1 publication Critical patent/WO2021012317A1/zh

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B32B37/1292—Application of adhesive selectively, e.g. in stripes, in patterns
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B2037/1253—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/204—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive coating being discontinuous
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2427/00—Presence of halogenated polymer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2431/00—Presence of polyvinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2477/00—Presence of polyamide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2481/00—Presence of sulfur containing polymers

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 rubber structure, the frame rubber structure includes a plurality of rubber strips, and the plurality of rubber strips overlap end to end to form a closed loop;
  • the end of at least one of any two adjacent adhesive strips is provided with an overlap area, and the width of the overlap area is less than or equal to one-third of the width of the adhesive strip provided with the overlap area one.
  • the widths of the plurality of rubber strips are the same.
  • the length of each overlapping area is greater than or equal to twice the width of the rubber strip provided with the overlapping area.
  • the length of each overlapping area is less than or equal to four times the width of the rubber strip provided with the overlapping area.
  • the sealant structure is rectangular, and the first, second, third, and fourth sealant strips constituting the sealant structure, the first The first, second, third, and fourth adhesive strips overlap to form a closed loop, the first and fourth adhesive strips are arranged oppositely, and the second and third adhesive strips are arranged oppositely .
  • the first end and the second end of the first adhesive strip are provided with overlapping areas, the first end of the second adhesive strip covers one of the overlapping areas, and the third adhesive The first end of the strip covers the other overlapping area;
  • the first end and the second end of the fourth adhesive strip are provided with overlapping areas, the second end of the second adhesive strip covers one of the overlapping areas, and the second end of the third adhesive strip covers the other A lap area.
  • the first end of the first adhesive strip, the first end of the second adhesive strip, the first end of the third adhesive strip and the first end of the fourth adhesive strip There is an overlap area at the end;
  • the second end of the first rubber strip overlaps with the first end of the second rubber strip, the second end of the second rubber strip overlaps with the first end of the fourth rubber strip, and the first end
  • the second end of the four rubber strips overlaps with the first end of the third rubber strip, and the second end of the third rubber strip overlaps with the first end of the first rubber strip.
  • two ends of the first adhesive strip, two ends of the second adhesive strip, two ends of the third adhesive strip, and two ends of the fourth adhesive strip are provided with straps. Joint area, the overlap area of any two adjacent rubber strips overlap.
  • 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.
  • 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, and the plurality of adhesive strips overlap end to end to form a closed loop, and the end of at least one of any two adjacent adhesive strips is provided with an overlap area,
  • the width of the overlapping area is less than or equal to one third of the width of the rubber strip provided with the overlapping area;
  • 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 strip, and sets an overlap area at the overlap of the rubber strip, and the width of the overlap area is less than or equal to one third of the width of the rubber strip.
  • This arrangement reduces the overlapping area of two adjacent adhesive strips due to overlap to one-third of the prior art, thereby effectively reducing the overlapping area of the adhesive strips and avoiding uneven heating of the adhesive strips Conditions that cannot be melted.
  • the length of the overlapping area is much larger than the width of the adhesive strip, the tolerance range is large, the alignment accuracy of the adhesive strip is low, and it is easy to paste.
  • 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 the display body and the sealant structure in the prior art
  • Figure 2 is a cross-sectional view along the AA1 direction in Figure 1;
  • FIG. 3 is a cross-sectional view of the display panel after the adhesive strips in FIG. 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 the first specific embodiment of the application;
  • Figure 7 is a schematic diagram of the structure of the first adhesive strip
  • Figure 8 is a cross-sectional view along the CC1 direction in Figure 6;
  • FIG. 9 is a schematic diagram of the structure of the display panel and the adhesive strip in the second specific embodiment of the application.
  • FIG. 10 is a schematic diagram of the structure of the display panel and the adhesive strip in the third specific embodiment of the application.
  • the display panel 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.
  • FIG. 6 is a schematic diagram of the structure of the display panel and the adhesive strip in the first specific embodiment of the application
  • FIG. 7 is a schematic diagram of the structure of the first adhesive strip
  • the present application provides a sealant structure for bonding the display main body 10 and the cover 20 constituting the display panel.
  • the display main body 10 includes a display area and a non-display area surrounding the display area, the adhesive unit is disposed on the non-display area, and the cover plate 20 is attached by an adhesive unit formed by the sealant structure
  • the display main body 10 forms a sealed space with the display main body 10.
  • the frame rubber structure includes a plurality of rubber strips, which overlap end to end to form a closed loop.
  • Different display panels have different shapes, and the corresponding shapes of the sealant structure are also different.
  • the number of rubber strips constituting the sealant structure is also different.
  • the number of the adhesive strips is 4, which respectively correspond to the four sides of the display panel.
  • the width of the glue strip is usually one-third to one-fourth of the width of the non-display area.
  • the end of at least one of any two adjacent adhesive strips is provided with an overlap area, and the width of the overlap area is less than or equal to the width of the adhesive strip provided with the overlap area. one third.
  • 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 widths of the multiple rubber strips are the same.
  • the length of each overlap area is greater than or equal to twice the width of the adhesive strip provided with the overlap area.
  • 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 frame glue structure is rectangular, and the first glue strip 11, the second glue strip 12, the third glue strip 13 and the fourth glue strip 14 constituting the bonding unit, the first glue strip 11, the second glue strip
  • the adhesive strip 12, the third adhesive strip 13 and the fourth adhesive strip 14 overlap in the first place to form a closed loop.
  • the first adhesive strip 11 and the fourth adhesive strip 14 are arranged oppositely, and the second adhesive strip 12 and the third adhesive strip 13 Relative settings.
  • the first end and the second end of the first adhesive strip 11 are provided with overlapping areas, the first end of the second adhesive strip 12 covers one of the overlapping areas, and the third adhesive strip 13 The first end covers the other overlap area.
  • the first end and the second end of the fourth adhesive strip 14 are provided with overlapping areas, the second end of the second adhesive strip 12 covers one of the overlapping areas, and the second end of the third adhesive strip 13 Cover the other overlap area.
  • the first rubber strip 11 is taken as an example for description.
  • the first rubber strip 11 includes a rubber strip 111 and two overlapping areas 112 located at two ends of the rubber strip 111.
  • the width of the rubber strip is W1 and the length is L1.
  • the width of the overlapping area is W2 and the length is L2.
  • the overlap area is less than or equal to one third of the width W1 of the rubber strip.
  • the length L2 of the overlapping area is greater than or equal to twice the width W1 of the adhesive strip. Since the width of the overlapping area is small, the adhesive force of the corresponding overlapping area is also relatively small. In order to prevent the cover plate 20 from falling off due to the decrease in the adhesive force of the adhesive strip, the length L2 of the overlapping area is less than or equal to the glue Four times the width of the bar W1.
  • FIG. 9 shows a second embodiment of the present application.
  • the first end of the first rubber strip 11, the first end of the second rubber strip 12, the first end of the third rubber strip 13 and the first end of the fourth rubber strip 14 are arranged There is a lap area.
  • the second end of the first rubber strip 11 overlaps with the first end of the second rubber strip 12, and the second end of the second rubber strip 12 overlaps with the first end of the fourth rubber strip 14
  • the second end of the fourth adhesive strip 14 and the first end of the third adhesive strip 13 overlap, and the second end of the third adhesive strip 13 and the first end of the first adhesive strip 11 End overlap.
  • the four adhesive strips have the same shape, and each adhesive strip is provided with an overlap area.
  • the lengths of the four rubber strips are equal.
  • the four rubber strips have the same shape and size, and the same template can be used to cut the rubber strips. The process complexity of cutting and pasting adhesive strips is reduced.
  • Fig. 10 shows a third embodiment of the present application.
  • two ends of the first adhesive strip 11, two ends of the second adhesive strip 12, two ends of the third adhesive strip 13 and two ends of the fourth adhesive strip 14 are provided with overlapping areas.
  • the overlap area of any two adjacent rubber strips overlap.
  • the overlap area of the overlapping area of two adjacent adhesive strips is less than or equal to one-ninth of the overlap area in the prior art, so that the adhesive strips at the overlap are more likely to be heated evenly, which not only strengthens the adhesive strips The uniformity of heating, while reducing the time required for the glue strip to melt.
  • this application also provides a manufacturing method of a display panel, the method including the following steps:
  • a plurality of adhesive strips are arranged on the non-display area, and the plurality of adhesive strips overlap end to end to form a closed loop, and the end of at least one of any two adjacent adhesive strips is provided with an overlap area,
  • the width of the overlapping area is less than or equal to one third of the width of the rubber strip provided with the overlapping area;
  • the bonding unit is cooled and solidified, so that the cover plate 20 and the display body 10 form a sealed space.
  • This application optimizes the shape of the rubber strip, and sets an overlap area at the overlap of the rubber strip, and the width of the overlap area is less than or equal to one third of the width of the rubber strip.
  • This arrangement reduces the overlapping area of two adjacent adhesive strips due to overlap to one-third of the prior art, thereby effectively reducing the overlapping area of the adhesive strips and avoiding uneven heating of the adhesive strips Conditions that cannot be melted.
  • the length of the overlapping area is much larger than the width of the adhesive strip, the tolerance range is large, the alignment accuracy of the adhesive strip is low, and it is easy to paste.
  • the technical solution of the present application can optimize the sealing effect of the display panel without increasing the process difficulty.

Abstract

本申请提供了一种框胶结构和显示面板的制作方法。所述框胶结构包括多个胶条，所述多个胶条首尾搭接构成一个闭合回路；其中，任意两个相邻的胶条中的至少一个胶条的端部设置有搭接区，所述搭接区的宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一。

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，所述多个胶条首尾搭接构成一个闭合回路；
其中，任意两个相邻的胶条中的至少一个胶条的端部设置有搭接区，所述搭接区的宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一。
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，每一个搭接区的长度大于或等于设置有所述搭接区的胶条宽度的两倍。
根据本申请的其中一个方面，每一个搭接区的长度小于或等于设置有所述搭接区的胶条宽度的四倍。
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首位搭接构成闭合回路，所述第一胶条和第四胶条相对设置，所述第二胶条和第三胶条相对设置。
根据本申请的其中一个方面，所述第一胶条的第一端和第二端设置有搭接区，所述第二胶条的第一端覆盖其中一个搭接区，所述第三胶条的第一端覆盖其中另一个搭接区；
所述第四胶条的第一端和第二端设置有搭接区，所述第二胶条的第二端覆盖其中一个搭接区，所述第三胶条的第二端覆盖其中另一个搭接区。
根据本申请的其中一个方面，所述第一胶条的第一端、所述第二胶条的第一端、所述第三胶条的第一端和所述第四胶条的第一端设置有搭接区；
所述第一胶条的第二端和所述第二胶条的第一端搭接，所述二胶条的第二端和所述第四胶条的第一端搭接，所述第四胶条的第二端和所述第三胶条的第一端搭接，所述第三胶条的第二端和所述第一胶条的第一端搭接。
根据本申请的其中一个方面，所述第一胶条的两端、所述第二胶条的两端、所述第三胶条的两端和所述第四胶条的两端设置有搭接区，任意两个相邻胶条的搭接区搭接。
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。
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，所述多个胶条首尾搭接构成一个闭合回路，任意两个相邻的胶条中的至少一个胶条的端部设置有搭接区，所述搭接区的宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一；
将盖板压合在所述黏合单元上，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。
 有益效果
本申请对胶条的形状进行了优化，在胶条的搭接处设置了搭接区，搭接区的宽度小于或等于胶条宽度的三分之一。这样设置使得相邻的两个胶条由于搭接而产生的重叠面积减小为现有技术的三分之一，从而有效的减小了胶条的重合面积，避免了胶条由于受热不均无法融化的情况。同时，搭接区的长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主体和框胶结构的结构示意图；
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为本申请的第一个具体实施例中的显示面板和胶条的结构示意图；
图7为第一胶条的结构示意图；
图8为图6中沿CC1方向的剖面图；
图9为本申请的第二个具体实施例中的显示面板和胶条的结构示意图；
图10为本申请的第三个具体实施例中的显示面板和胶条的结构示意图。
 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，所述显示面板包括基板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6、图7和图8，图6为本申请的第一个具体实施例中的显示面板和胶条的结构示意图，图7为第一胶条的结构示意图，图8为图6中沿CC1方向的剖面图。本申请提供了一种框胶结构，用于黏合构成显示面板的显示主体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，所述黏合单元设置在所述非显示区上，所述盖板20通过由所述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，所述多个胶条首尾搭接构成一个闭合回路。不同的显示面板具有不同的形状，与之对应的框胶结构的形状也不相同，相应的，构成所述框胶结构的胶条的数目也不相同。通常，对于主流的矩形显示面板，所述胶条的数目为4条，分别对应于显示面板的四个侧边。同时，为了避免胶条变形产生溢胶，胶条的宽度通常为非显示区的宽度的三分之一到四分之一。
本申请中，任意两个相邻的胶条中的至少一个胶条的端部设置有搭接区，所述搭接区的宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一。
本申请中，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。
本实施例中，为了简化工艺，节约成本，所述多个胶条的宽度相同。同时，为了增大粘贴胶条时的容错率，每一个搭接区的长度大于或等于设置有所述搭接区的胶条宽度的两倍。这样设置，即使在粘贴时胶条在外力的作用下发生形变，也依然能够保证搭接区的胶条宽度是胶条宽度的三分之一，从而降低了对粘贴精度的要求，降低了工艺难度。同时，为了避免搭接区过长导致胶条的粘附力减弱，本实施例中，每一个搭接区的长度小于或等于设置有所述搭接区的胶条宽度的四倍。
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。
所述框胶结构为矩形，构成所述黏合单元的胶条第一胶条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首位搭接构成闭合回路，所述第一胶条11和第四胶条14相对设置，所述第二胶条12和第三胶条13相对设置。
对比图2和图8，可以看出，由于搭接区的胶条宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一，本申请中搭接的两个胶条的重叠面积小于或等于现有技术的三分之一。由于搭接面积显著减小，极大的增加了搭接处胶条的热传导效率，使胶条受热均匀，消除了现有技术中由于胶条无法融化在搭接处产生的空气通道。
参见图6，所述第一胶条11的第一端和第二端设置有搭接区，所述第二胶条12的第一端覆盖其中一个搭接区，所述第三胶条13的第一端覆盖其中另一个搭接区。所述第四胶条14的第一端和第二端设置有搭接区，所述第二胶条12的第二端覆盖其中一个搭接区，所述第三胶条13的第二端覆盖其中另一个搭接区。
参见图7，以第一胶条11为例进行说明。所述第一胶条11包括胶条111和位于所述胶条111两端的两个搭接区112。所述胶条的宽度为W1，长度为L1。所述搭接区的宽度为W2，长度为L2。为了确保第一胶条11与第二胶条12和第三胶条13搭接时产生的重叠区域的面积小于或等于现有技术中的重叠面积的三分之一，所述搭接区的宽度W2小于或等于所述胶条的宽度W1的三分之一。同时，为了降低粘贴胶条时的操作精度，所述搭接区的长度L2大于或等于所述胶条的宽度W1的两倍。由于搭接区的宽度较小，相应的搭接区的粘附力也较小，为了避免由于胶条粘附力下降导致盖板20脱落，所述搭接区的长度L2小于或等于所述胶条的宽度W1的四倍。
参见图9，图9示出了本申请的第二个实施例。其中，所述第一胶条11的第一端、所述第二胶条12的第一端、所述第三胶条13的第一端和所述第四胶条14的第一端设置有搭接区。所述第一胶条11的第二端和所述第二胶条12的第一端搭接，所述第二胶条12的第二端和所述第四胶条14的第一端搭接，所述第四胶条14的第二端和所述第三胶条13的第一端搭接，所述第三胶条13的第二端和所述第一胶条11的第一端搭接。这种搭接方式中，四个胶条的形状相同，每个胶条均设置有一个搭接区。对于正方形的框胶结构，所述四个胶条的长度相等。此时，所述四个胶条具有相同的形状和尺寸，可以采用同一个模版对胶条进行切割。降低了切割和粘贴胶条的工艺复杂度。
参见图10，图10示出了本申请的第三个实施例。其中，所述第一胶条11的两端、所述第二胶条12的两端、所述第三胶条13的两端和所述第四胶条14的两端设置有搭接区，任意两个相邻胶条的搭接区搭接。本实施例中，相邻两个胶条的搭接区的重叠面积小于或等于现有技术中的重叠面积的九分之一，使重叠处的胶条更容易受热均匀，不仅增强了胶条的受热均匀性，同时减少了胶条融化所需要的时间。
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；
在所述非显示区上设置多个胶条，所述多个胶条首尾搭接构成一个闭合回路，任意两个相邻的胶条中的至少一个胶条的端部设置有搭接区，所述搭接区的宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一；
将盖板20压合在所述黏合单元上，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，在胶条的搭接处设置了搭接区，搭接区的宽度小于或等于胶条宽度的三分之一。这样设置使得相邻的两个胶条由于搭接而产生的重叠面积减小为现有技术的三分之一，从而有效的减小了胶条的重合面积，避免了胶条由于受热不均无法融化的情况。同时，搭接区的长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。
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 (11)

  1. 一种框胶结构，其中，所述框胶结构包括多个胶条，所述多个胶条首尾搭接构成一个闭合回路；
    其中，任意两个相邻的胶条中的至少一个胶条的端部设置有搭接区，所述搭接区的宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一。
  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1所述的框胶结构，其中，每一个搭接区的长度大于或等于设置有所述搭接区的胶条宽度的两倍。
  4. 根据权利要求1所述的框胶结构，其中，每一个搭接区的长度小于或等于设置有所述搭接区的胶条宽度的四倍。
  5. 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首位搭接构成闭合回路，所述第一胶条和第四胶条相对设置，所述第二胶条和第三胶条相对设置。
  6. 根据权利要求5所述的框胶结构，其中，
    所述第一胶条的第一端和第二端设置有搭接区，所述第二胶条的第一端覆盖其中一个搭接区，所述第三胶条的第一端覆盖其中另一个搭接区；
    所述第四胶条的第一端和第二端设置有搭接区，所述第二胶条的第二端覆盖其中一个搭接区，所述第三胶条的第二端覆盖其中另一个搭接区。
  7. 根据权利要求5所述的框胶结构，其中，
    所述第一胶条的第一端、所述第二胶条的第一端、所述第三胶条的第一端和所述第四胶条的第一端设置有搭接区；
    所述第一胶条的第二端和所述第二胶条的第一端搭接，所述二胶条的第二端和所述第四胶条的第一端搭接，所述第四胶条的第二端和所述第三胶条的第一端搭接，所述第三胶条的第二端和所述第一胶条的第一端搭接。
  8. 根据权利要求5所述的框胶结构，其中，
    所述第一胶条的两端、所述第二胶条的两端、所述第三胶条的两端和所述第四胶条的两端设置有搭接区，任意两个相邻胶条的搭接区搭接。
  9. 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。
  10. 根据权利要求9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。
  11. 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，所述多个胶条首尾搭接构成一个闭合回路，任意两个相邻的胶条中的至少一个胶条的端部设置有搭接区，所述搭接区的宽度小于或等于设置有所述搭接区的胶条的宽度的三分之一；
    将盖板压合在所述黏合单元上，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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