WO2020082477A1 - 窄边框oled显示面板 - Google Patents

窄边框oled显示面板 Download PDF

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Publication number
WO2020082477A1
WO2020082477A1 PCT/CN2018/116529 CN2018116529W WO2020082477A1 WO 2020082477 A1 WO2020082477 A1 WO 2020082477A1 CN 2018116529 W CN2018116529 W CN 2018116529W WO 2020082477 A1 WO2020082477 A1 WO 2020082477A1
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WO
WIPO (PCT)
Prior art keywords
diversion
display panel
layer
oled display
sub
Prior art date
Application number
PCT/CN2018/116529
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English (en)
French (fr)
Inventor
杨杰
张明
Original Assignee
武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/464,005 priority Critical patent/US11209859B2/en
Publication of WO2020082477A1 publication Critical patent/WO2020082477A1/zh

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Classifications

    • 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
    • H10K59/873—Encapsulations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
    • G06F1/1607—Arrangements to support accessories mechanically attached to the display housing
    • G06F1/1609—Arrangements to support accessories mechanically attached to the display housing to support filters or lenses
    • 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
    • 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
    • H10K50/844—Encapsulations
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays

Definitions

  • the present application relates to a display technology, in particular to a narrow-frame OLED display panel.
  • the panel can be composed of a display area and a non-display area.
  • the current packaging structure is an inorganic / organic / inorganic laminated structure, because inorganic and organic
  • the functional difference of organic requires that the boundary of the inorganic layer is larger than the boundary of the organic Area, AA) is large, as shown in Figure 1.
  • the boundary of the organic film layer is effectively limited, and the boundary of the entire panel can be effectively reduced.
  • the double retaining wall structure inner retaining wall and outer retaining wall
  • the structure of the double retaining wall increases the frame width of the OLED display panel.
  • Embodiments of the present application provide a narrow-frame OLED display panel to solve the technical problem of a wider frame of the existing OLED display panel.
  • An embodiment of the present application provides a narrow-frame OLED display panel, including:
  • the light-emitting functional layer is provided on the substrate;
  • An encapsulation layer provided on the light-emitting function layer, including an organic sub-layer;
  • a first retaining wall for preventing the material of the organic sub-layer from overflowing when forming the organic sub-layer, surrounding the outer peripheral side of the organic sub-layer;
  • a second retaining wall used to prevent the material of the organic sub-layer from overflowing when the organic sub-layer is formed, is provided between the first retaining wall and the organic sub-layer;
  • At least one notch is provided on the second retaining wall to reduce the width of the frame on the notch side of the OLED display panel;
  • the second retaining wall includes two second side walls disposed on both sides of the organic sub-layer and a second sub-wall connected to the same end of the two second side walls, the second A gap is defined between the other ends of the side walls; the first retaining wall includes a first sub-wall close to the gap;
  • the second side wall body, the second sub-wall body and the first sub-wall body surround the peripheral side of the organic sub-layer;
  • the second side wall body includes a diversion section near the notch for guiding the overflowing organic material between the first retaining wall and the second retaining wall, and the diversion section is provided with Multiple diversion channels with capillary action.
  • the diversion channel is a diversion channel, and the depth of the diversion channel is less than or equal to the height of the second side wall body.
  • the depth of the diversion groove gradually becomes shallower from the end near the notch toward the end away from the notch.
  • the spacing between adjacent diversion grooves gradually increases from the end near the notch to the end away from the notch.
  • the diversion channel is a diversion hole.
  • the density of the diversion holes gradually decreases from the end near the notch to the end away from the notch.
  • the density of the diversion holes gradually increases from the top of the second side wall to the bottom of the second side wall.
  • the diversion channel includes a diversion channel and a diversion hole, and the depth of the diversion channel is less than or equal to the height of the second side wall body.
  • An embodiment of the present application provides a narrow-frame OLED display panel, including:
  • the light-emitting functional layer is provided on the substrate;
  • An encapsulation layer provided on the light-emitting function layer, including an organic sub-layer;
  • a first blocking wall for preventing the material of the organic sub-layer from overflowing when forming the organic sub-layer, surrounding the outer peripheral side of the organic sub-layer and closing the connection;
  • a second retaining wall used to prevent the material of the organic sub-layer from overflowing when the organic sub-layer is formed, is provided between the first retaining wall and the organic sub-layer;
  • At least one notch is provided on the second retaining wall, so as to reduce the width of the frame on the notch side of the OLED display panel.
  • the second retaining wall includes two second side walls disposed on both sides of the organic sub-layer and one same connected to the two second side walls A second sub-wall body at an end, and the other end of the second side wall body defines a gap between them;
  • the first retaining wall includes a first sub-wall body near the gap;
  • the second side wall body, the second sub-wall body and the first sub-wall body surround the peripheral side of the organic sub-layer.
  • the second retaining wall includes two second side walls disposed on both sides of the organic sub-layer, and both ends of the second side wall are defined between Forming one of the notches;
  • the first retaining wall includes two first sub-walls close to the corresponding notches;
  • Two of the second side walls and two of the first sub-walls surround the peripheral side of the organic sub-layer.
  • the second side wall body includes a guide near the notch for guiding the overflowing organic material between the first retaining wall and the second retaining wall Flow section, a plurality of flow guide channels with capillary action are provided on the flow guide section.
  • the width of the diversion channel is less than 1 mm, and optionally, the width of the diversion channel is less than 100 microns.
  • the diversion channel is a diversion channel, and the depth of the diversion channel is less than or equal to the height of the second side wall body.
  • the depth of the diversion groove gradually becomes shallower from the end near the notch toward the end away from the notch.
  • the spacing between adjacent diversion grooves gradually increases from the end near the notch to the end away from the notch.
  • the diversion channel is a diversion hole.
  • the density of the diversion holes gradually decreases from the end near the notch to the end away from the notch.
  • the density of the diversion holes gradually increases from the top of the second side wall to the bottom of the second side wall.
  • the diversion holes are arranged in an array, and the diversion holes between adjacent rows are staggered.
  • the diversion channel includes a diversion channel and a diversion hole, and the depth of the diversion channel is less than or equal to the height of the second side wall body.
  • the diversion holes are located below the diversion slots and are offset from the diversion slots, and the depth of the diversion slots is from The end away from the gap gradually becomes shallower.
  • the height of the first retaining wall is greater than the height of the second retaining wall.
  • the narrow-frame OLED display panel of the present application is provided with a notch on the second retaining wall, so that there is no wall at the notch, thereby saving the width of a wall, thereby reducing the OLED
  • the display panel is provided with a frame width on the notch side; it solves the technical problem that the existing OLED display panel has a wider frame.
  • FIG. 1 is a schematic structural diagram of an existing OLED display panel
  • FIG. 2 is a schematic structural diagram of a first embodiment of an OLED display panel of this application.
  • FIG. 3 is a schematic diagram of the cross-sectional structure of line AA in FIG. 2;
  • FIG. 4 is a schematic diagram of the overflow structure of the first embodiment of the OLED display panel of the present application due to the capillary phenomenon;
  • FIG. 5 is a schematic structural diagram of a second side wall of a second retaining wall of the first embodiment of the OLED display panel of the present application;
  • FIG. 6 is a schematic structural diagram of a second side wall of a second retaining wall of the second embodiment of the OLED display panel of this application;
  • FIG. 7 is a schematic structural diagram of a second side wall of a second retaining wall of the third embodiment of the OLED display panel of this application;
  • FIG. 8 is a schematic structural diagram of a fourth embodiment of an OLED display panel of this application.
  • FIG. 9 is a schematic diagram of an overflow structure due to a capillary phenomenon in the fourth embodiment of the OLED display panel of the present application.
  • FIG. 10 is a schematic structural diagram of a second side wall of a second retaining wall of the fourth embodiment of the OLED display panel of the present application.
  • the shape of the display area of the OLED display panel of the present application may be any shape, such as a polygon, a circle, or a combination of curved and straight edges, and so on. Regardless of the graphics of the display area of the OLED display panel, the first retaining wall and the second retaining wall are always surrounded on the peripheral side of the organic sub-layer of the encapsulation layer, wherein the shapes of the first retaining wall and the second retaining wall can be displayed with the OLED The display area of the panel is the same or not the same. Therefore, the present application does not limit the shape of the OLED display panel and the shapes of the first retaining wall and the second retaining wall. In this application, the OLED display panel is rectangular, and the display area of the OLED display panel is rectangular as an example for description, but it is not limited thereto.
  • FIG. 2 is a schematic structural diagram of the first embodiment of the OLED display panel of the present application
  • FIG. 3 is a schematic cross-sectional structural diagram of line AA in FIG.
  • the narrow-frame OLED display panel 100 of the first embodiment of the present application includes a substrate 11, a light-emitting function layer 12, an encapsulation layer 13, a first barrier wall 14 and a second barrier wall 15.
  • the light-emitting functional layer 12 is provided on the substrate 11.
  • the encapsulation layer 13 is provided on the light-emitting functional layer 12 and includes a first inorganic sub-layer 132, an organic sub-layer 131, and a second inorganic sub-layer 133 that are sequentially provided on the light-emitting functional layer 12.
  • the first blocking wall 14 is used to prevent the material of the organic sub-layer 131 from overflowing when the organic sub-layer 131 is formed, and surrounds the outer peripheral side of the organic sub-layer 131 and closes the connection.
  • the second retaining wall 15 is used to prevent the material of the organic sub-layer 131 from overflowing when the organic sub-layer 131 is formed, and is disposed between the first retaining wall 14 and the organic sub-layer 131. At least one notch 15a is provided on the second blocking wall 15 to reduce the width of the frame on the side of the OLED display panel 100 where the notch 15a is provided.
  • the second retaining wall 15 is provided with a notch 15a, so that there is no wall of the second retaining wall 15 at the notch 15a, which saves the space for installing the wall and further reduces the OLED display panel 100 setting The width of the frame on the side of the notch 15a.
  • the height of the first retaining wall 14 is greater than the height of the second retaining wall 15. Such an arrangement can further improve the phenomenon of preventing the material of the organic sub-layer 131 from overflowing when the organic sub-layer 131 is formed.
  • the material of the first retaining wall 14 and the second retaining wall 15 may be transparent polyimide, and the distance between the first retaining wall 14 and the second retaining wall 15 is between 10 ⁇ m and 100 ⁇ m.
  • the second retaining wall 15 includes two second side walls 15b disposed on both sides of the organic sub-layer 131 and one second sub-wall connected to the same end of the two second side walls 15b ⁇ 15c ⁇ Body 15c.
  • a gap 15a is defined between the other ends of the second side wall 15b.
  • the first retaining wall 14 includes a first sub-wall 14a near the notch 15a.
  • the second side wall body 15b, the second sub-wall body 15c and the first sub-wall body 14a surround the peripheral side of the organic sub-layer 131.
  • the organic sub-layer 131 on the side of the notch 15a has only one first retaining wall 14, while the other side of the organic sub-layer 131 is provided with a first retaining wall 14 and a second retaining wall 15, so the OLED display panel The frame on the side of the notch 15a of 100 is reduced.
  • the second side wall 15b is located on the gate driving side of the OLED display panel 100
  • the second sub-wall 15c is the second upper wall (that is, the second sub-wall 15c is located on the OLED display panel 100 Source drive side)
  • the notch 15a is located at the lower border of the OLED display panel 100, so the width of the lower border of the OLED display panel 100 is reduced.
  • the notch is located on the upper border of the OLED display panel, so the upper border of the OLED display panel can be reduced Width; when the second side wall is on the source drive side of the OLED display panel, the notch is on the gate drive side of the OLED display panel, so the border width of the gate drive side of the OLED display panel can be reduced (ie, the sides on both sides of the OLED display panel Border width). Therefore, in this application, the positions of the notch 15a, the second side wall 15b, and the second sub-wall 15c are not limited.
  • FIG. 5 is a schematic structural diagram of a second side wall of a second retaining wall of the first embodiment of the OLED display panel of the present application.
  • the second side wall 15b includes a diversion section 151 near the notch 15a for guiding the overflowing organic material between the first retaining wall 14 and the second retaining wall 15, the diversion section
  • the 151 is provided with a plurality of guide channels 152 having capillary action.
  • the diversion channel 152 serves to further prevent the material overflow of the organic sub-layer 131 from occurring, because when the liquid material of the organic sub-layer 131 is overfilled (that is, the surface of the material forms a convex curved surface), the diversion channel 152 will pass The capillary action drains the overfilled liquid material between the first retaining wall 14 and the second retaining wall 15 so as to avoid the overflow of the organic sub-layer 131 material, as shown in FIG. 4.
  • the width of the diversion channel 152 is less than 1 mm, and optionally, the width of the diversion channel 152 is greater than 50 microns.
  • the width of the guide channel 152 is smaller, the phenomenon that the guide channel 152 attracts the liquid material is more obvious, that is, the farther the guide channel 152 guides the liquid material, the faster the guide speed. Therefore, in order to confirm that the guide channel 152 can introduce the liquid material of the organic sub-layer 131 between the first barrier wall 14 and the second barrier wall 15, the width of the guide channel 152 is less than 1 mm.
  • the width of the diversion channel 152 is greater than or equal to 100 microns and less than or equal to 700 microns.
  • the diversion channel 152 is a diversion channel 152, and the depth of the diversion channel 152 is less than or equal to the height of the second side wall 15b.
  • the depth of the diversion groove 152 gradually becomes shallower from the end near the notch 15a to the end away from the notch 15a.
  • the spacing between adjacent diversion grooves 152 gradually increases from the end near the notch 15a to the end away from the notch 15a.
  • the top surface of the liquid material is higher than the height of the second retaining wall 15, so the liquid material generates pressure and capillary in the diversion groove 152 Under the action, the liquid material is introduced into the diversion groove 152 and enters between the first retaining wall 14 and the second retaining wall 15, thereby preventing the organic liquid material formed by the organic sub-layer 131 from overflowing.
  • FIG. 6 is a schematic structural diagram of a second side wall of a second retaining wall of the second embodiment of the OLED display panel of the present application.
  • the difference between this embodiment and the first embodiment is that in the diversion section 251, the diversion channel 252 is a diversion hole 252.
  • the density of the diversion holes 252 gradually decreases from the end near the notch to the end far from the notch.
  • the density of the diversion holes 252 gradually increases from the top end of the second side wall body 25b to the bottom end of the second side wall body 25b.
  • the lower the portion of the organic liquid material the greater the pressure it receives. Therefore, a dense diversion hole 252 is provided at the bottom of the first side wall 25b to increase the flow of organic liquid material to the first
  • the efficiency of the first retaining wall and the second retaining wall further improves the strength of preventing the material of the organic sub-layer from overflowing.
  • the diversion holes 252 are arranged in an array, and the diversion holes 252 between adjacent rows are staggered. This arrangement makes the diversion holes 252 in the second side wall 25b more uniform, improves the stability of the second side wall 25b, and improves the strength uniformity of the second side wall 25b.
  • the diameter of the diversion hole 252 in the second embodiment is the width of the diversion channel in the first embodiment.
  • FIG. 7 is a schematic structural diagram of a second side wall of a second retaining wall of the third embodiment of the OLED display panel of the present application.
  • the difference between this embodiment and the first embodiment is that in the diversion section 351, the diversion channel 352 includes a diversion slot 353 and a diversion hole 354, and the depth of the diversion slot 353 is less than or equal to the second side wall 35b the height of.
  • the diversion holes 354 are located below the diversion grooves 353 and are offset from the diversion grooves 353, and the depth of the diversion grooves 353 gradually becomes shallower from the end near the notch to the end away from the notch.
  • the diversion hole 354 on the second side wall 35b is smaller than the opening area of the diversion groove 353 on the second side wall 35b, the diversion hole 354 is disposed below the diversion groove 353 to Improve the stability of the second side wall 35b.
  • the misalignment of the diversion hole 354 and the diversion groove 353 improves the uniformity of the strength of the second side wall 35b.
  • the depth of the diversion groove 353 is gradually shallower from the end near the notch to the end away from the notch, so that the liquid material of the organic sub-layer near the first sub-wall is quickly introduced into the first retaining wall and the second retaining wall During this time, the strength and efficiency of protection are improved.
  • FIG. 8 and FIG. 9 is a schematic structural diagram of a fourth embodiment of the OLED display panel of the present application.
  • FIG. 9 is a fourth embodiment of the OLED display panel of the present application due to capillary phenomenon Schematic diagram of the overflow structure.
  • the fourth embodiment differs from the first to third embodiments in that the second retaining wall 45 includes two second side walls 45b disposed on both sides of the organic sub-layer 431. A gap 45a is defined between two ends of the second side wall 45b.
  • the first retaining wall 44 includes two first sub-walls 44a close to the corresponding notches 45a.
  • the two second side walls 45b and the two first sub walls 44a surround the peripheral side of the organic sub layer 431.
  • the second blocking wall 45 since the second blocking wall 45 has two notches 45a opposite to each other, the width of the frame on the side of the notch 45a where the OLED display panel 400 is provided is saved.
  • the notch 45a is located near the upper and lower frames of the OLED display panel 400, so the width of the upper and lower frames of the OLED display panel 400 is reduced.
  • both ends of the second side wall body 45b include guide sections 451, and at the same time, each guide section 451 is provided with a guide channel 452 having a capillary effect.
  • FIG. 10 is a schematic structural diagram of a second side wall of a second retaining wall of the fourth embodiment of the OLED display panel of the present application.
  • the structure of the flow guiding channel 452 of the flow guiding section 451 in the second side wall 45b of the second retaining wall 45 of the fourth embodiment is the structure of the flow guiding channel 452 of the first embodiment.
  • the diversion channel 452 please refer to the first embodiment, which will not be repeated here.
  • the structure of the diversion channel 452 of the fourth embodiment may also be one of the diversion channel of the second embodiment or the diversion channel of the third embodiment.
  • the structure of the diversion channel 452 of the fourth embodiment may also be one of the diversion channel of the second embodiment or the diversion channel of the third embodiment.
  • the narrow-frame OLED display panel of the present application is provided with a notch on the second retaining wall, so that there is no wall at the notch, thereby saving the width of a wall, thereby reducing the OLED
  • the display panel is provided with a frame width on the notch side; it solves the technical problem that the existing OLED display panel has a wider frame.

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Abstract

本申请提供一种窄边框OLED显示面板，其包括基板、发光功能层、具有有机子层的发光功能层、封装层、第一挡墙和第二挡墙，第一挡墙围设在所述有机子层的外周侧；第二挡墙设置在第一挡墙和有机子层之间；其中第二挡墙上设置有至少一个缺口，以缩小OLED显示面板设置有所述缺口侧的边框宽度。

Description

窄边框OLED显示面板 技术领域
本申请涉及一种显示技术，特别涉及一种窄边框OLED显示面板。
 背景技术
在有机发光二级管（Organic Light-emitting Diode，OLED）显示面板中，面板可由显示区和非显示区两部分构成，目前的封装结构为采用无机/有机/无机的叠层结构，因为无机和有机的功能性差异，要求无机层的边界要比有机的边界更大，且有机和无机的边界都会比显示区（Active Area，AA）大，如图1所示。
因此有效的限制有机膜层的边界，可以有效的减小整个面板的边界，目前多会采用双重挡墙结构（内挡墙和外挡墙）来对封装有机层范围进行限定，而为了避免有机材料在挡墙处的溢流。但是双重挡墙的结构，增大了OLED显示面板的边框宽度。
 技术问题
本申请实施例提供一种窄边框OLED显示面板，以解决现有的OLED显示面板的边框较宽的技术问题。
 技术解决方案
本申请实施例提供一种窄边框OLED显示面板，其包括：
基板；
发光功能层，设置在所述基板上；
封装层，设置在所述发光功能层上，包括有机子层；
第一挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，围设在所述有机子层的外周侧；以及
第二挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，设置在所述第一挡墙和所述有机子层之间；
其中，所述第二挡墙上设置有至少一个缺口，以缩小OLED显示面板设置有所述缺口侧的边框宽度；
所述第二挡墙包括两个设置在所述有机子层两侧的第二侧墙体和一个连接于两个所述第二侧墙体的同一端的第二子墙体，所述第二侧墙体的另一端之间界定形成一个所述缺口；所述第一挡墙包括靠近所述缺口的第一子墙体；
所述第二侧墙体、所述第二子墙体和所述第一子墙体围设于所述有机子层的周侧；
所述第二侧墙体包括靠近所述缺口的用于将溢流的有机材料导向所述第一挡墙和所述第二挡墙之间的导流段，所述导流段上设置有多个具有毛细作用的导流通道。
在本申请的窄边框OLED显示面板中，所述导流通道为导流槽，所述导流槽的深度小于等于所述第二侧墙体的高度。
在本申请的窄边框OLED显示面板中，所述导流槽的深度自靠近所述缺口的一端向远离所述缺口的一端逐渐变浅。
在本申请的窄边框OLED显示面板中，相邻所述导流槽之间的间距自靠近所述缺口的一端向远离所述缺口的一端逐渐变大。
在本申请的窄边框OLED显示面板中，所述导流通道为导流孔。
在本申请的窄边框OLED显示面板中，所述导流孔的密度自靠近所述缺口的一端向远离所述缺口的一端逐渐变小。
在本申请的窄边框OLED显示面板中，所述导流孔的密度自所述第二侧墙体的顶端向所述第二侧墙体的底端逐渐变大。
在本申请的窄边框OLED显示面板中，所述导流通道包括导流槽和导流孔，所述导流槽的深度小于等于所述第二侧墙体的高度。
本申请实施例提供一种窄边框OLED显示面板，其包括：
基板；
发光功能层，设置在所述基板上；
封装层，设置在所述发光功能层上，包括有机子层；
第一挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，围设在所述有机子层的外周侧且闭合连接；以及
第二挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，设置在所述第一挡墙和所述有机子层之间；
其中，所述第二挡墙上设置有至少一个缺口，以缩小OLED显示面板设置有所述缺口侧的边框宽度。
在本申请的窄边框OLED显示面板中，所述第二挡墙包括两个设置在所述有机子层两侧的第二侧墙体和一个连接于两个所述第二侧墙体的同一端的第二子墙体，所述第二侧墙体的另一端之间界定形成一个所述缺口；所述第一挡墙包括靠近所述缺口的第一子墙体；
所述第二侧墙体、所述第二子墙体和所述第一子墙体围设于所述有机子层的周侧。
在本申请的窄边框OLED显示面板中，所述第二挡墙包括两个设置在所述有机子层两侧的第二侧墙体，所述第二侧墙体的两端之间均界定形成一个所述缺口；所述第一挡墙包括两个靠近对应的所述缺口的第一子墙体；
两个所述第二侧墙体和两个所述第一子墙体围设于所述有机子层的周侧。
在本申请的窄边框OLED显示面板中，所述第二侧墙体包括靠近所述缺口的用于将溢流的有机材料导向所述第一挡墙和所述第二挡墙之间的导流段，所述导流段上设置有多个具有毛细作用的导流通道。
在本申请的窄边框OLED显示面板中，所述导流通道的宽度小于1毫米，可选的，所述导流通道的宽度小于100微米。
在本申请的窄边框OLED显示面板中，所述导流通道为导流槽，所述导流槽的深度小于等于所述第二侧墙体的高度。
在本申请的窄边框OLED显示面板中，所述导流槽的深度自靠近所述缺口的一端向远离所述缺口的一端逐渐变浅。
在本申请的窄边框OLED显示面板中，相邻所述导流槽之间的间距自靠近所述缺口的一端向远离所述缺口的一端逐渐变大。
在本申请的窄边框OLED显示面板中，所述导流通道为导流孔。
在本申请的窄边框OLED显示面板中，所述导流孔的密度自靠近所述缺口的一端向远离所述缺口的一端逐渐变小。
在本申请的窄边框OLED显示面板中，所述导流孔的密度自所述第二侧墙体的顶端向所述第二侧墙体的底端逐渐变大。
在本申请的窄边框OLED显示面板中，所述导流孔呈阵列式排布，且相邻行之间的所述导流孔相错设置。
在本申请的窄边框OLED显示面板中，所述导流通道包括导流槽和导流孔，所述导流槽的深度小于等于所述第二侧墙体的高度。
在本申请的窄边框OLED显示面板中，所述导流孔位于所述导流槽的下方并与所述导流槽相错设置，所述导流槽的深度自靠近所述缺口的一端向远离所述缺口的一端逐渐变浅。
在本申请的窄边框OLED显示面板中，所述第一挡墙的高度大于所述第二挡墙的高度。
 有益效果
相较于现有技术的OLED显示面板，本申请的窄边框OLED显示面板通过在第二挡墙上设置缺口，以使缺口处没有墙体，从而节省了一面墙体的宽度，进而缩小了OLED显示面板设置有缺口侧的边框宽度；解决了现有的OLED显示面板的边框较宽的技术问题。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面对实施例中所需要使用的附图作简单的介绍。下面描述中的附图仅为本申请的部分实施例，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获取其他的附图。
图1为现有技术的OLED显示面板的结构示意图；
图2为本申请的OLED显示面板的第一实施例的结构示意图；
图3为图2中AA线的截面结构示意图；
图4为本申请的OLED显示面板的第一实施例因毛细现象的溢流结构示意图；
图5为本申请的OLED显示面板的第一实施例的第二挡墙的第二侧墙体的结构示意图；
图6为本申请的OLED显示面板的第二实施例的第二挡墙的第二侧墙体的结构示意图；
图7为本申请的OLED显示面板的第三实施例的第二挡墙的第二侧墙体的结构示意图；
图8为本申请的OLED显示面板的第四实施例的结构示意图；
图9为本申请的OLED显示面板的第四实施例因毛细现象的溢流结构示意图；
图10为本申请的OLED显示面板的第四实施例的第二挡墙的第二侧墙体的结构示意图。
 本发明的实施方式
请参照附图中的图式，其中相同的组件符号代表相同的组件。以下的说明是基于所例示的本申请具体实施例，其不应被视为限制本申请未在此详述的其它具体实施例。
需要说明的是，本申请的OLED显示面板的显示区域的形状可以是任何形状，比如多边形、圆形或曲边和直边的组合图形等等。不管OLED显示面板的显示区域是什么图形，第一挡墙和第二挡墙始终围设在封装层的有机子层的周侧,其中第一挡墙和第二挡墙的形状可以与OLED显示面板的显示区域相同，也可以不相同。因此对于OLED显示面板的形状和第一挡墙和第二挡墙的形状，本申请并不做限制。其中本申请以OLED显示面板为矩形，OLED显示面板的显示区为矩形为例进行说明，但不限于此。
请参照图2和图3，图2为本申请的OLED显示面板的第一实施例的结构示意图；图3为图2中AA线的截面结构示意图。
本申请第一实施例的窄边框OLED显示面板100包括基板11、发光功能层12、封装层13、第一挡墙14和第二挡墙15。
其中发光功能层12设置在基板11上。封装层13设置在发光功能层12上，其包括依次设置在发光功能层12上的第一无机子层132、有机子层131和第二无机子层133。第一挡墙14用于防止在形成有机子层131时有机子层131的材料溢流，其围设在有机子层131的外周侧且闭合连接。第二挡墙15用于防止在形成有机子层131时有机子层131的材料溢流，其设置在第一挡墙14和有机子层131之间。第二挡墙15上设置有至少一个缺口15a，以缩小OLED显示面板100设置有缺口15a侧的边框宽度。
在本第一实施例中，在第二挡墙15上设置缺口15a，以使缺口15a处没有第二挡墙15的墙体，节省了设置墙体的空间，进而缩小了OLED显示面板100设置有缺口15a侧的边框宽度。
其中，第一挡墙14的高度大于第二挡墙15的高度。这样的设置，能进一步提高防止在形成有机子层131时有机子层131的材料外溢的现象。第一挡墙14和第二挡墙15的材料可以是透明的聚酰亚胺，第一挡墙14和第二挡墙15之间的间距介于10微米~100微米之间。
在本第一实施例中，第二挡墙15包括两个设置在有机子层131两侧的第二侧墙体15b和一个连接于两个第二侧墙体15b的同一端的第二子墙体15c。第二侧墙体15b的另一端之间界定形成一个缺口15a。第一挡墙14包括靠近缺口15a的第一子墙体14a。第二侧墙体15b、第二子墙体15c和第一子墙体14a围设于有机子层131的周侧。
这样的设置，使得缺口15a侧的有机子层131只有一面第一挡墙14，而有机子层131的其他侧均设置有一面第一挡墙14和一面第二挡墙15，因此OLED显示面板100的缺口15a侧的边框得到缩小。
在本第一实施例中，第二侧墙体15b位于OLED显示面板100的栅驱动侧，第二子墙体15c为第二上墙体（即第二子墙体15c位于OLED显示面板100的源驱动侧），缺口15a位于OLED显示面板100的下边框处，故缩小了OLED显示面板100的下边框宽度。另外，当第二子墙体为第二下墙体（第二子墙体位于OLED显示面板的扇出区域侧）时，缺口位于OLED显示面板的上边框，故可缩小OLED显示面板的上边框宽度；当第二侧墙体位于OLED显示面板的源驱动侧时，缺口位于OLED显示面板的栅驱动侧，故可缩小OLED显示面板的栅驱动侧的边框宽度（即OLED显示面板两侧的侧边框宽度）。因此在本申请中，对缺口15a、第二侧墙体15b和第二子墙体15c的位置不作限制。
请参照图5，图5为本申请的OLED显示面板的第一实施例的第二挡墙的第二侧墙体的结构示意图。在本第一实施例中，第二侧墙体15b包括靠近缺口15a的用于将溢流的有机材料导向第一挡墙14和第二挡墙15之间的导流段151，导流段151上设置有多个具有毛细作用的导流通道152。
其中，导流通道152起到进一步防止有机子层131的材料外溢的现象发生，因为当有机子层131的液体材料过满（即材料的外表形成凸曲面）之后，导流通道152便会通过毛细作用将过满的液体材料引流至第一挡墙14和第二挡墙15之间，从而避免了有机子层131材料的外溢，如图4所示。
在本第一实施例中，导流通道152的宽度小于1毫米，可选的，导流通道152的宽度大于50微米。当导流通道152的宽度越小时，则导流通道152吸引液体材料的现象越明显，即导流通道152导流液体材料的距离越远，导流的速度越快。因此为了确认导流通道152能够将有机子层131的液体材料导入第一挡墙14和第二挡墙15之间，导流通孔152的宽度小于1毫米。
可选的，为了使得导流通道152既有足够的导流距离，又具有足够的导流效率，导流通道152的宽度大于等于100微米且小于等于700微米。
在本第一实施例中，导流通道152为导流槽152，导流槽152的深度小于等于第二侧墙体15b的高度。
其中，导流槽152的深度自靠近缺口15a的一端向远离缺口15a的一端逐渐变浅。这样的设置，使得靠近第一子墙体14a的有机子层131的液体材料迅速的被导入第一挡墙14和第二挡墙15之间，提高了防护的强度和效率。
另外，相邻导流槽152之间的间距自靠近缺口15a的一端向远离缺口15a的一端逐渐变大。这样的设置，使得靠近第一子墙体14a的有机子层131的液体材料迅速的被导入第一挡墙14和第二挡墙15之间，提高了防护的强度和效率。
在本第一实施例中，当有机子层131的液体材料过满时，液体材料的顶面高于第二挡墙15的高度，因此液体材料产生了压力，并在导流槽152的毛细作用下，液体材料导入导流槽152中并进入第一挡墙14和第二挡墙15之间，从而避免了有机子层131形成的有机液体材料外溢。
请参照图6，图6为本申请的OLED显示面板的第二实施例的第二挡墙的第二侧墙体的结构示意图。在本第二实施例中，本实施例和第一实施例的不同之处在于：在导流段251中，导流通道252为导流孔252。且导流孔252的密度自靠近缺口的一端向远离缺口的一端逐渐变小。这样的设置，使得靠近第一子墙体的有机子层的液体材料迅速的被导入第一挡墙和第二挡墙之间，提高了防护的强度和效率。
另外，导流孔252的密度自第二侧墙体25b的顶端向第二侧墙体25b的底端逐渐变大。由于在有机子层中，位于有机液体材料越低的部分，其受到的压力就越大，因此在第一侧墙体25b的底端设置较密的导流孔252，提高有机液体材料流向第一挡墙和第二挡墙的效率，进而提高了防止有机子层的材料外溢的强度。
在本第二实施例中，导流孔252呈阵列式排布，且相邻行之间的导流孔252相错设置。这样的设置，使得第二侧墙体25b中的导流孔252更为均匀，且提高第二侧墙体25b的稳定性，提高了第二侧墙体25b的强度均匀性。
需要说明的上，本第二实施例中的导流孔252的孔径为第一实施例中导流通道的宽度。
在本第三实施例中，请参照图7，图7为本申请的OLED显示面板的第三实施例的第二挡墙的第二侧墙体的结构示意图。本实施例和第一实施例的不同之处在于：在导流段351中，导流通道352包括导流槽353和导流孔354，导流槽353的深度小于等于第二侧墙体35b的高度。
在本第三实施例中，导流孔354位于导流槽353的下方并与导流槽353相错设置，导流槽353的深度自靠近缺口的一端向远离缺口的一端逐渐变浅。
其中，由于导流孔354在第二侧墙体35b上的开口面积小于导流槽353在第二侧墙体35b的开口面积，因此将导流孔354设置在导流槽353的下方，以提高第二侧墙体35b的稳定性。导流孔354和导流槽353的相错设置，提高了第二侧墙体35b的强度的均匀性。导流槽353的深度自靠近缺口的一端向远离缺口的一端逐渐变浅的设置，使得靠近第一子墙体的有机子层的液体材料迅速的被导入第一挡墙和第二挡墙之间，提高了防护的强度和效率。
在本第四实施例中，请参照8和图9，图8为本申请的OLED显示面板的第四实施例的结构示意图；图9为本申请的OLED显示面板的第四实施例因毛细现象的溢流结构示意图。
本第四实施例与第一实施例至第三实施例的不同之处在于：第二挡墙45包括两个设置在有机子层431两侧的第二侧墙体45b。第二侧墙体45b的两端之间均界定形成一个缺口45a。第一挡墙44包括两个靠近对应的缺口45a的第一子墙体44a。两个第二侧墙体45b和两个第一子墙体44a围设于有机子层431的周侧。
其中，由于第二挡墙45具有两个相对设置的缺口45a，从而节省了OLED显示面板400设置有缺口45a侧的边框的宽度。
在本第四实施例中，缺口45a位于OLED显示面板400的上边框和下边框附近，故缩小了OLED显示面板400的上边框和下边框的宽度。
由于第二挡墙45具有两个缺口45a，因此第二侧墙体45b的两端均包括导流段451，同时，每个导流段451均设置有具有毛细作用的导流通道452。
请参照图10，图10为本申请的OLED显示面板的第四实施例的第二挡墙的第二侧墙体的结构示意图。本第四实施例的第二挡墙45的第二侧墙体45b中的导流段451的导流通道452的结构为第一实施例的导流通道452的结构。导流通道452的具体结构请参照第一实施例，在此不再赘述。
当然，在第四实施例的导流通道452的结构也可以是第二实施例的导流通道或第三实施例的导流通道中的一种。具体请参照第二实施例和第三实施例。
相较于现有技术的OLED显示面板，本申请的窄边框OLED显示面板通过在第二挡墙上设置缺口，以使缺口处没有墙体，从而节省了一面墙体的宽度，进而缩小了OLED显示面板设置有缺口侧的边框宽度；解决了现有的OLED显示面板的边框较宽的技术问题。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (20)

  1. 一种窄边框OLED显示面板，其包括：
    基板；
    发光功能层，设置在所述基板上；
    封装层，设置在所述发光功能层上，包括有机子层；
    第一挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，围设在所述有机子层的外周侧；以及
    第二挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，设置在所述第一挡墙和所述有机子层之间；
    其中所述第二挡墙上设置有至少一个缺口，以缩小OLED显示面板设置有所述缺口侧的边框宽度；
    所述第二挡墙包括两个设置在所述有机子层两侧的第二侧墙体和一个连接于两个所述第二侧墙体的同一端的第二子墙体，所述第二侧墙体的另一端之间界定形成一个所述缺口；所述第一挡墙包括靠近所述缺口的第一子墙体；
    所述第二侧墙体、所述第二子墙体和所述第一子墙体围设于所述有机子层的周侧；
    所述第二侧墙体包括靠近所述缺口的用于将溢流的有机材料导向所述第一挡墙和所述第二挡墙之间的导流段，所述导流段上设置有多个具有毛细作用的导流通道。
  2. 根据权利要求1所述的窄边框OLED显示面板，其中，所述导流通道为导流槽，所述导流槽的深度小于等于所述第二侧墙体的高度。
  3. 根据权利要求2所述的窄边框OLED显示面板，其中，所述导流槽的深度自靠近所述缺口的一端向远离所述缺口的一端逐渐变浅。
  4. 根据权利要求2所述的窄边框OLED显示面板，其中，相邻所述导流槽之间的间距自靠近所述缺口的一端向远离所述缺口的一端逐渐变大。
  5. 根据权利要求1所述的窄边框OLED显示面板，其中，所述导流通道为导流孔。
  6. 根据权利要求5所述的窄边框OLED显示面板，其中，所述导流孔的密度自靠近所述缺口的一端向远离所述缺口的一端逐渐变小。
  7. 根据权利要求5所述的窄边框OLED显示面板，其中，所述导流孔的密度自所述第二侧墙体的顶端向所述第二侧墙体的底端逐渐变大。
  8. 根据权利要求1所述的窄边框OLED显示面板，其中，所述导流通道包括导流槽和导流孔，所述导流槽的深度小于等于所述第二侧墙体的高度。
  9. 一种窄边框OLED显示面板，其包括：
    基板；
    发光功能层，设置在所述基板上；
    封装层，设置在所述发光功能层上，包括有机子层；
    第一挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，围设在所述有机子层的外周侧；以及
    第二挡墙，用于防止在形成所述有机子层时所述有机子层的材料溢流，设置在所述第一挡墙和所述有机子层之间；
    其中所述第二挡墙上设置有至少一个缺口，以缩小OLED显示面板设置有所述缺口侧的边框宽度。
  10. 根据权利要求9所述的窄边框OLED显示面板，其中，所述第二挡墙包括两个设置在所述有机子层两侧的第二侧墙体和一个连接于两个所述第二侧墙体的同一端的第二子墙体，所述第二侧墙体的另一端之间界定形成一个所述缺口；所述第一挡墙包括靠近所述缺口的第一子墙体；
    所述第二侧墙体、所述第二子墙体和所述第一子墙体围设于所述有机子层的周侧。
  11. 根据权利要求9所述的窄边框OLED显示面板，其中，所述第二挡墙包括两个设置在所述有机子层两侧的第二侧墙体，所述第二侧墙体的两端之间均界定形成一个所述缺口；所述第一挡墙包括两个靠近对应的所述缺口的第一子墙体；
    两个所述第二侧墙体和两个所述第一子墙体围设于所述有机子层的周侧。
  12. 根据权利要求11所述的窄边框OLED显示面板，其中，所述第二侧墙体包括靠近所述缺口的用于将溢流的有机材料导向所述第一挡墙和所述第二挡墙之间的导流段，所述导流段上设置有多个具有毛细作用的导流通道。
  13. 根据权利要求12所述的窄边框OLED显示面板，其中，所述导流通道为导流槽，所述导流槽的深度小于等于所述第二侧墙体的高度。
  14. 根据权利要求13所述的窄边框OLED显示面板，其中，所述导流槽的深度自靠近所述缺口的一端向远离所述缺口的一端逐渐变浅。
  15. 根据权利要求13所述的窄边框OLED显示面板，其中，相邻所述导流槽之间的间距自靠近所述缺口的一端向远离所述缺口的一端逐渐变大。
  16. 根据权利要求12所述的窄边框OLED显示面板，其中，所述导流通道为导流孔。
  17. 根据权利要求16所述的窄边框OLED显示面板，其中，所述导流孔的密度自靠近所述缺口的一端向远离所述缺口的一端逐渐变小。
  18. 根据权利要求16所述的窄边框OLED显示面板，其中，所述导流孔的密度自所述第二侧墙体的顶端向所述第二侧墙体的底端逐渐变大。
  19. 根据权利要求12所述的窄边框OLED显示面板，其中，所述导流通道包括导流槽和导流孔，所述导流槽的深度小于等于所述第二侧墙体的高度。
  20. 根据权利要求19所述的窄边框OLED显示面板，其中，所述导流孔位于所述导流槽的下方并与所述导流槽相错设置，所述导流槽的深度自靠近所述缺口的一端向远离所述缺口的一端逐渐变浅。
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