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WO2015143843A1 - 一种显示面板及其封装方法、显示装置 - Google Patents

一种显示面板及其封装方法、显示装置 Download PDF

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Publication number
WO2015143843A1
WO2015143843A1 PCT/CN2014/085734 CN2014085734W WO2015143843A1 WO 2015143843 A1 WO2015143843 A1 WO 2015143843A1 CN 2014085734 W CN2014085734 W CN 2014085734W WO 2015143843 A1 WO2015143843 A1 WO 2015143843A1
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Prior art keywords
substrate
annular
display panel
annular groove
present disclosure
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PCT/CN2014/085734
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English (en)
French (fr)
Inventor
王伟
孙中元
马凯葓
Original Assignee
京东方科技集团股份有限公司
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Priority to US14/439,465 priority Critical patent/US9793506B2/en
Publication of WO2015143843A1 publication Critical patent/WO2015143843A1/zh

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    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/842—Containers
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/841—Self-supporting sealing arrangements
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/40—Thermal treatment, e.g. annealing in the presence of a solvent vapour

Definitions

  • Embodiments of the present disclosure relate to a display panel, a packaging method thereof, and a display device.
  • OLED Organic Light-Emitting Diode
  • the OLED includes a metal anode, a metal cathode, and a light emitting layer, and the metal anode and the metal cathode cooperate to drive the light emitting layer to emit light.
  • the inventors found that most of the organic substances in the OLED light-emitting layer are very sensitive to atmospheric pollutants, oxygen and water vapor. At the same time, the water vapor in the atmosphere will also cause electrochemical corrosion to the metal cathode, which seriously affects the OLED display panel. Service life. Therefore, the package of the OLED display panel must ensure good sealing inside the display panel to extend the working life of the OLED display panel.
  • the technical problem to be solved by the present disclosure is to provide a display panel, a packaging method thereof, and a display device.
  • the package of the OLED display panel can ensure good sealing performance inside the display panel and prolong the working life of the OLED display panel.
  • a first aspect of the present disclosure provides a display panel including a first substrate, a second substrate opposite to the first substrate, the first substrate provided with at least one annular protrusion, and the at least one annular protrusion is made of glass Forming, the second substrate is provided with an encapsulating strip that cooperates with the annular protrusion, and the encapsulating strip includes at least one annular groove, and the number of the annular grooves is less than or equal to the number of annular protrusions.
  • the annular protrusion has a trapezoidal cross section.
  • the long base of the trapezoidal shape of the annular projection has a length of 480-980 microns and a height of 180-380 microns.
  • the annular groove has a trapezoidal cross section.
  • the long base of the trapezoid of the annular groove has a length of 500-1000 microns and a height of 200-400 microns.
  • the bottom surface of the annular groove is a rough surface.
  • a display panel including a first substrate having an annular protrusion, an annular protrusion on the first substrate and an annular groove on the second substrate when the case is opposite to the case Cooperating, relative to the substrate without the annular protrusion and the annular groove, can effectively enhance the sealing property of the first substrate and the second substrate after the box, and extend the contact between the air and the water after the box to the first substrate and the second
  • the time of the OLED light-emitting layer between the substrates further extends the working life of the OLED display panel.
  • a second aspect of the present disclosure provides a display device including the above display panel.
  • a third aspect of the disclosure provides a method for packaging the above display panel, including:
  • the annular protrusion has a trapezoidal cross section.
  • the long base of the trapezoidal shape of the annular projection has a length of 480-980 microns and a height of 180-380 microns.
  • the annular groove has a trapezoidal cross section.
  • the long base of the trapezoid of the annular groove has a length of 500-1000 microns and a height of 200-400 microns.
  • the bottom surface of the annular groove is a rough surface.
  • FIG. 1 is a schematic plan view of a first substrate in accordance with an embodiment of the present disclosure
  • FIG. 2 is a schematic structural view of a first substrate in accordance with an embodiment of the present disclosure
  • FIG. 3 is a plan view of a second substrate in accordance with an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural view of a second substrate in accordance with an embodiment of the present disclosure.
  • FIG. 5 is a first schematic view of assembly of a first substrate and a second substrate in accordance with an embodiment of the present disclosure
  • FIG. 6 is a second schematic view of assembly of a first substrate and a second substrate in accordance with an embodiment of the present disclosure
  • FIG. 7 is a third assembly view of the first substrate and the second substrate in accordance with an embodiment of the present disclosure.
  • FIG. 8 is a fourth assembly view of the first substrate and the second substrate in accordance with an embodiment of the present disclosure.
  • An embodiment of the present disclosure provides a display panel, as shown in FIG. 5, including a first substrate 1 and a second substrate 2 opposite to the first substrate 1 as shown in FIG. 1, 2 or 5,
  • the first substrate 1 is provided with at least one annular projection 11 formed of a frit.
  • the second substrate 2 is provided with a package tape 21 that fits the annular protrusion 11, and the package tape 21 includes at least one annular groove 211, and the number of the annular grooves 211 is less than or equal to The number of annular protrusions 11.
  • the display panel according to the present embodiment includes a first substrate having an annular protrusion, the annular protrusion on the first substrate mating with the annular groove on the second substrate, and having no annular protrusion and annular groove
  • the sealing property of the first substrate and the second substrate after the box can be effectively enhanced, and the time for the air and water after the box to contact the OLED light-emitting layer between the first substrate and the second substrate is prolonged, thereby prolonging The working life of the OLED display panel.
  • the annular protrusion 11 and the package tape 21 are covered by the frame of the display panel to prevent the annular protrusion 11 and the package tape 21 from being seen by the user, thereby affecting the display effect of the display panel. Since the first substrate 1 and the second substrate 2 are usually packaged with a curing adhesive, that is, a cured paste is filled between the annular projection 11 and the package tape 21.
  • the contact area of the annular protrusion 11 and the cured glue is larger, air.
  • the larger the number of the annular projections 11 and the smaller the area occupied by the annular projections 11 under the premise of the same contact area the narrower frame of the display panel can be further achieved.
  • the number of the annular protrusions 11 actually disposed should be determined according to the actual requirements such as the sealing requirement and the width of the frame, and the embodiment of the present disclosure does not limit this.
  • the annular groove 211 in the package tape 21 is provided to fit the annular projection 11. As shown in FIG. 5, the number, position and size of the annular groove 211 are the same as those of the annular protrusion 11. At this time, each annular groove 211 is provided corresponding to an annular protrusion 11 to ensure maximum display. The sealing of the panel. However, in practice, for the production cost, production efficiency, and manufacturing process, the number of the annular grooves 211 can be reduced, and the width of the annular groove 211 can be increased. At this time, after the box is closed, an annular concave The slot 211 houses two or more annular projections 11 as shown in Figures 6 and 7.
  • the sectional shape of the annular protrusion 11 may be selected according to actual conditions, such as a semicircular shape (as shown in FIG. 8), a square shape, or even an irregular shape, but the annular protrusion 11 is made of a glass frit.
  • the annular projection 11 formed of the glass frit is integrated with the first substrate 1 made of glass after baking and solidification, so that no impurity such as air or water is allowed to enter between the annular projection 11 and the first substrate 1. path of.
  • the frit still has a certain fluidity before the annular protrusion 11 is baked and solidified, and therefore, in order to simplify the manufacturing process and reduce the production cost, the cross section of the annular projection 11 may be selected to be trapezoidal.
  • the cross-sectional shape of the annular groove 211 may be any shape such as a semicircular shape (as shown in FIG. 8), a square shape, or even an irregular shape.
  • the cross section of the annular groove 211 is selected to be trapezoidal.
  • only one annular projection 11 is provided, the long base of the trapezoidal shape of the annular projection 11 having a length of 480-980 microns and a height of 180-380 microns.
  • the long base of the trapezoidal shape of the annular groove 211 at this time has a length of 500 to 1000 ⁇ m and a height of 200 to 400 ⁇ m.
  • the bottom surface of the annular groove 211 is selected as a rough surface, such as a frosted glass surface.
  • the first substrate 1 can be used as an array substrate, and since the array substrate is provided with a plurality of structures such as a thin film transistor unit and an OLED light emitting layer, The sealing property of the first substrate 1 and the second substrate 2 is improved.
  • the second substrate 2 further includes a recess 22, and the recess 22 can accommodate the first substrate 1.
  • Various structures protruding from the surface of the first substrate 1 serve to improve the sealing properties of the first substrate 1 and the second substrate 2.
  • the display panel in the embodiment of the present disclosure is also applicable to the liquid crystal display panel, that is, the liquid crystal is packaged between the first substrate 1 and the second substrate 2.
  • the display panel in the embodiment of the present disclosure can also be used to package electronic ink, and the display panel is electronic paper.
  • the present disclosure provides a display device, including the above display panel, which may have any display 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. Functional product or part.
  • An embodiment of the present disclosure provides a method of packaging a display panel according to the first embodiment, the packaging method comprising:
  • Step 101 Form at least one annular protrusion by using a frit on the first substrate.
  • the annular protrusion is also required to be baked at a high temperature so that it is completely solidified and integrated with the first substrate.
  • Step 102 Forming an encapsulation tape that fits the at least one annular protrusion on the second substrate, the encapsulation tape includes at least one annular groove, and the number of the annular grooves is less than or equal to the number of the annular protrusions.
  • Step 103 Apply a curing glue in the annular groove, and press-align the first substrate and the second substrate, and the annular protrusions are evenly placed in the annular groove.
  • Step 104 curing the cured adhesive in the annular groove.
  • the solidified glue in the annular groove is irradiated with ultraviolet rays to completely solidify it.
  • step 102 may be performed before step 101 or simultaneously with step 101.
  • the annular protrusion has a trapezoidal cross section, and the long base of the trapezoidal shape of the annular protrusion has a length of 480-980 micrometers and a height of 180-380 micrometers; the annular groove has a trapezoidal cross section and an annular groove The long base of the trapezoid has a length of 500-1000 microns and a height of 200-400 microns.
  • the bottom surface of the annular groove is provided as a rough surface.

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  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
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  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示面板，包括第一基板（1）、与所述第一基板（1）对盒的第二基板（2），所述第一基板（1）设置有至少一个中心点相同的环形突起（11），所述至少一个环形突起（11）由玻璃料形成，所述第二基板（2）设置有配合环形突起（11）的封装带（21），所述封装带（21）包括至少一个环形凹槽（211），环形凹槽（211）的个数小于等于环形突起（11）的个数。还提供了一种封装方法和显示装置。能够通过OLED显示面板的封装保证显示面板内部良好的密封性，延长OLED显示面板的工作寿命。

Description

一种显示面板及其封装方法、显示装置 技术领域
本公开的实施例涉及一种显示面板及其封装方法、显示装置。
背景技术
有机发光二级管(Organic Light-Emitting Diode，简称OLED)显示面板由于具有薄、轻、宽视角、主动发光、发光颜色连续可调、成本低、响应速度快、能耗小、驱动电压低、工作温度范围宽、生产工艺简单、发光效率高及可柔性显示等优点，已成为极具发展前景的下一代显示技术。
OLED包括金属阳极、金属阴极和发光层，金属阳极和金属阴极共同作用驱动发光层发光。而发明人发现，OLED发光层中的多数有机物质对大气中的污染物、氧气及水汽都十分敏感，同时，大气中的水汽还会对金属阴极造成电化学腐蚀，严重影响了OLED显示面板的使用寿命。因此，必须通过OLED显示面板的封装保证显示面板内部良好的密封性，以延长OLED显示面板的工作寿命。
发明内容
本公开所要解决的技术问题在于提供一种显示面板及其封装方法、显示装置，能够通过OLED显示面板的封装保证显示面板内部良好的密封性，延长OLED显示面板的工作寿命。
为解决上述技术问题，本公开采用如下技术方案：
本公开第一方面提供了一种显示面板，包括第一基板、与所述第一基板对盒的第二基板，所述第一基板设置有至少一个环形突起，所述至少一个环形突起由玻璃料形成，所述第二基板设置有配合所述环形突起的封装带，所述封装带包括至少一个环形凹槽，环形凹槽的个数小于或等于环形突起的个数。
环形突起的截面为梯形。
环形突起的梯形的长底边的长度为480-980微米，高度为180-380微米。
环形凹槽的截面为梯形。
环形凹槽的梯形的长底边的长度为500-1000微米，高度为200-400微米。
环形凹槽的底面为粗糙面。
在本公开实施例的技术方案中，提供了一种显示面板，该显示面板包括具有环形突起的第一基板，在对盒时，第一基板上的环形突起与第二基板上的环形凹槽配合，相对于不具有环形突起与环形凹槽的基板来说，可有效地增强第一基板和第二基板对盒之后的密封性，延长对盒后空气和水接触到第一基板和第二基板之间的OLED发光层的时间，进而延长了OLED显示面板的工作寿命。
本公开第二方面提供了一种显示装置，包括上述的显示面板。
本公开第三方面提供了一种上述显示面板的封装方法，包括：
在第一基板上利用玻璃料形成至少一个中心点相同的环形突起；
在第二基板上形成配合所述至少一个环形突起的封装带，所述封装带包括至少一个环形凹槽，环形凹槽的个数小于或等于环形突起的个数；
在环形凹槽中涂覆固化胶，将所述第一基板和所述第二基板进行对位压合，环形突起对位放置于环形凹槽中；
固化环形凹槽中的固化胶。
环形突起的截面为梯形。
环形突起的梯形的长底边的长度为480-980微米，高度为180-380微米。
环形凹槽的截面为梯形。
环形凹槽的梯形的长底边的长度为500-1000微米，高度为200-400微米。
环形凹槽的底面为粗糙面。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为根据本公开实施例中的第一基板的平面示意图；
图2为根据本公开实施例中的第一基板的结构示意图；
图3为根据本公开实施例中的第二基板的平面示意图；
图4为根据本公开实施例中的第二基板的结构示意图；
图5为根据本公开实施例中的第一基板和第二基板的装配示意图一；
图6为根据本公开实施例中的第一基板和第二基板的装配示意图二；
图7为根据本公开实施例中的第一基板和第二基板的装配示意图三；以及
图8为根据本公开实施例中的第一基板和第二基板的装配示意图四。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
实施例一
本公开的一个实施例提供了一种显示面板，如图5所示，包括第一基板1、与第一基板1对盒的第二基板2，如图1、2或5所示，所述第一基板1设置有至少一个环形突起11，所述环形突起11由玻璃料形成。如图3、4或5所示，所述第二基板2设置有配合环形突起11的封装带21，所述封装带21包括至少一个环形凹槽211，环形凹槽211的个数小于或等于环形突起11的个数。
根据本实施例的显示面板包括具有环形突起的第一基板，在对盒时，第一基板上的环形突起与第二基板上的环形凹槽配合，相对于不具有环形突起与环形凹槽的基板来说，可有效地增强第一基板和第二基板对盒之后的密封性，延长对盒后空气和水接触到第一基板和第二基板之间的OLED发光层的时间，进而延长了OLED显示面板的工作寿命。
进一步的，一般来说，在封装后，环状突起11和封装带21均由显示面板的边框覆盖，以防止环状突起11和封装带21被用户看到，影响显示面板的显示效果。由于通常利用固化胶来封装第一基板1和第二基板2，即环状突起11和封装带21之间填充有固化胶。若是在相同的边框的宽度的限制下，环状突起11设置的个数越多，环状突起11和固化胶的接触面积越大，空气、 水等杂质侵入OLED发光层的路径就越长，这样，两块基板的密封性就越好，越能够延长OLED显示面板的工作寿命。相应地，在相同的接触面积的前提下，环状突起11的个数越多，环形突起11所需占用的面积越小，可进一步实现显示面板的窄边框化。需要说明的是，实际设置的环状突起11的个数应根据密封要求和边框的宽度等实际情况而定，本公开的实施例对此不进行限制。
封装带21中的环状凹槽211是为了配合环状突起11设置的。如图5所示，环状凹槽211的个数、位置、尺寸都与环状突起11相同，此时，每一个环状凹槽211对应一个环状突起11设置，以最大程度地保证显示面板的密封性。但实际上，出于生产成本、生产效率和制作工艺的考虑，可减少环状凹槽211的个数，同时增大环状凹槽211的宽度，此时，对盒后，一个环状凹槽211内容纳有两个甚至更多的环形突起11，如图6和图7所示。
在本公开实施例中，环形突起11的截面形状可根据实际情况进行选择，例如半圆形(如图8所示)、方形甚至不规则形状等任意形状，但由于环形突起11是由玻璃料形成，由玻璃料形成的环状突起11在烘烤固化后会与由玻璃制成的第一基板1成为一体，使得环状突起11与第一基板1之间没有容许空气、水等杂质侵入的路径。在未对环状突起11烘烤固化之前，玻璃料仍具有一定的流动性，因此，为了简化制作工艺以及降低生产成本，可以将环形突起11的截面选择为梯形。
相应地，环形凹槽211的截面形状可以为半圆形(如图8所示)、方形甚至不规则形状等任意形状。了简化制作工艺以及降低生产成本，将环形凹槽211的截面选择为梯形。
在本公开的一个实施例中，仅设置有一个环形突起11，该环形突起11的梯形的长底边的长度为480-980微米，高度为180-380微米。为了包覆该环形突起11，此时环形凹槽211的梯形的长底边的长度为500-1000微米，高度为200-400微米。
另外，为了进一步的提高显示面板的密封性，延长OLED显示面板的工作寿命，将环形凹槽211的底面选择为粗糙面，例如毛玻璃面。
需要说明的是，在本公开实施例中，可将第一基板1作为阵列基板，由于阵列基板上设置有薄膜晶体管单元、OLED发光层等多种结构，因此，为 了提高第一基板1和第二基板2的密封性，如图3、4、5、6、7所示，所述第二基板2还包括凹槽22，凹槽22可容纳第一基板1上的各种突出于第一基板1表面的结构，达到提高第一基板1和第二基板2的密封性的作用。
显然，本公开实施例中的显示面板同样适用于液晶显示面板，即第一基板1和第二基板2之间封装液晶。类似的，本公开实施例中的显示面板还可用于封装电子墨水，此时该显示面板为电子纸。
进一步的，本公开提供了一种显示装置，包括上述的显示面板，所述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。
实施例二
本公开实施例提供一种封装根据实施例一的显示面板的方法，该封装方法包括：
步骤101、在第一基板上利用玻璃料形成至少一个环形突起。
在第一基板上形成环形突起之后，还需对环形突起进行高温烘烤，使得其完全凝固后与第一基板融为一体。
步骤102、在第二基板上形成配合所述至少一个环形突起的封装带，所述封装带包括至少一个环形凹槽，环形凹槽的个数小于或等于环形突起的个数。
步骤103、在环形凹槽中涂覆固化胶，将所述第一基板和所述第二基板进行对位压合，环形突起均对位放置于环形凹槽中。
步骤104、固化环形凹槽中的固化胶。
利用紫外线照射环形凹槽中的固化胶使得其完全凝固。
需要说明的是，在流水线生产中，由于环形突起的位置、大小已经确定，因此，步骤102可在步骤101之前进行，或者与步骤101同时进行。
在本公开的一个实施例中，环形突起的截面为梯形，环形突起的梯形的长底边的长度为480-980微米，高度为180-380微米；环形凹槽的截面为梯形，环形凹槽的梯形的长底边的长度为500-1000微米，高度为200-400微米。
在本公开的一个实施例中，将环形凹槽的底面设置为粗糙面。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。
本申请要求于2014年3月27日递交的中国专利申请第201410118169.7号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (13)

  1. 一种显示面板，包括第一基板以及与所述第一基板对盒的第二基板，其中，所述第一基板设置有至少一个环形突起，所述至少一个环形突起由玻璃料制成，所述第二基板设置封装带，所述封装带包括至少一个环形凹槽，用于配合所述环形突起，所述环形凹槽的个数小于或等于所述环形突起的个数。
  2. 根据权利要求1所述的显示面板，其中，所述环形突起的截面为梯形。
  3. 根据权利要求2所述的显示面板，其中，所述环形突起的梯形的长底边的长度为480-980微米，高度为180-380微米。
  4. 根据权利要求1至3中任何一项所述的显示面板，其中，环形凹槽的截面为梯形。
  5. 根据权利要求4所述的显示面板，其中，所述环形凹槽的梯形的长底边的长度为500-1000微米，高度为200-400微米。
  6. 根据权利要求1至5中任何一项所述的显示面板，其中，环形凹槽的底面为粗糙面。
  7. 一种显示装置，包括如权利要求1-6任一项所述的显示面板。
  8. 一种封装如权利要求1-6中任何一项所述显示面板的方法，其包括：
    在第一基板上利用玻璃料形成至少一个环形突起；
    在第二基板上形成封装带，所述封装带包括至少一个环形凹槽，用于配合所述至少一个环形突起，环形凹槽的个数小于或等于环形突起的个数；
    在环形凹槽中涂覆固化胶，将所述第一基板和所述第二基板进行对位压合，环形突起均对位放置于环形凹槽中；以及
    固化环形凹槽中的固化胶。
  9. 根据权利要求8所述的封装方法，其中，所述环形突起的截面为梯形。
  10. 根据权利要求9所述的封装方法，其中，环形突起的梯形的长底边的长度为480-980微米，高度为180-380微米。
  11. 根据权利要求8至10中任何一项所述的封装方法，其中，所述环形凹槽的截面为梯形。
  12. 根据权利要求11所述的封装方法，其中，所述环形凹槽的梯形的长 底边的长度为500-1000微米，高度为200-400微米。
  13. 根据权利要求8至12中任何一项所述的封装方法，其中，所述环形凹槽的底面为粗糙面。
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