WO2020191875A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2020191875A1
WO2020191875A1 PCT/CN2019/086448 CN2019086448W WO2020191875A1 WO 2020191875 A1 WO2020191875 A1 WO 2020191875A1 CN 2019086448 W CN2019086448 W CN 2019086448W WO 2020191875 A1 WO2020191875 A1 WO 2020191875A1
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Prior art keywords
layer
inorganic layer
display panel
light
organic
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PCT/CN2019/086448
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English (en)
French (fr)
Inventor
周思思
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Publication of WO2020191875A1 publication Critical patent/WO2020191875A1/zh
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays

Definitions

  • the present invention relates to the field of liquid crystal display technology, in particular to a display panel and a display device.
  • the non-display area on the display panel is compressed smaller and smaller.
  • a light-transmitting area is provided in the display area of the display panel to transmit light.
  • the purpose of the present invention is to provide a display panel and a display device, which are provided with at least one ring-shaped area to isolate the display area from the light-transmitting area, thereby improving the packaging effect of the display panel; at the same time, the ring-shaped area is provided, and also The contact area of the thin-film encapsulation layer around the light-transmitting area can be increased to further improve the encapsulation effect of the display panel.
  • the present invention provides a display panel including a display area, a light-transmitting area, and an annular area, the display area surrounds the annular area, the annular area surrounds the light-transmitting area, and the display area It includes: a substrate; a first inorganic layer arranged on the substrate; an organic laminate layer arranged on the side of the inorganic layer away from the substrate; an organic light emitting layer arranged on the organic laminate layer away from the inorganic layer
  • the thin film encapsulation layer is provided on the side of the organic light-emitting layer away from the organic laminate; wherein the light-transmitting area can allow light to penetrate the display panel; the ring-shaped area is formed on the On the first inorganic layer and covered by the thin film encapsulation layer.
  • the first inorganic layer is provided with at least one groove, and the groove is directly covered by the thin film encapsulation layer.
  • the first inorganic layer is formed with at least one dam, the dam is located on one side of the groove and close to the light-transmitting area, and the thin film encapsulation layer covers the dam .
  • the thin film encapsulation layer includes: a second inorganic layer disposed on the side of the organic light emitting layer away from the organic stack; a first organic layer disposed on the second inorganic layer away from the organic light emitting layer One side of the layer; the third inorganic layer is provided on the side of the first organic layer away from the second inorganic layer.
  • the light-transmitting area is a through hole that penetrates the display panel; the organic stack includes at least three second organic layers.
  • the second inorganic layer and the third inorganic layer are sequentially formed on the dam.
  • the first inorganic layer is further provided with another groove and another dam, and the second inorganic layer is sequentially formed on the other groove and the other dam. Layer and the third inorganic layer.
  • the cross section of the groove is a trapezoid with a narrow top and a wide bottom; the groove includes a groove bottom and a peripheral wall surrounding the groove bottom; the distance between the groove bottom and the substrate is 10 nm to 500 nm;
  • the through hole is a cylinder with a side wall; the shortest distance from the groove to the side wall is 10um-200um.
  • the second inorganic layer and the third inorganic layer are formed by a vapor deposition method; the first organic layer is formed by an inkjet printing method to form the first inorganic layer, the second inorganic layer, and the third inorganic layer.
  • the material of the inorganic layer is silicon oxide with a barrier to water and oxygen.
  • the present invention provides a display device including the display panel, and the display device further includes a camera module, and the camera module is arranged under the light-transmitting area.
  • the present invention provides a display panel and a display device, which are provided with at least one ring-shaped area to isolate the display area from the light-transmitting area, thereby improving the packaging effect of the display panel; at the same time, providing the ring-shaped area can also reduce the light-transmitting area.
  • the contact area of the thin-film encapsulation layer is increased to further improve the encapsulation effect of the display panel, thereby increasing the service life of the display panel.
  • Figure 1 is a top view of a display panel of the present invention
  • FIG. 2 is a schematic structural diagram of an embodiment of a display panel of the present invention.
  • FIG. 3 is a partial structural diagram of another embodiment of the display panel of the present invention.
  • the present invention provides a display panel 100.
  • the display panel 100 includes a display area 110, a transparent area 130 and an annular area 120.
  • the display area 110 surrounds the annular area 120, and the annular area 120 surrounds the transparent area 130.
  • the display area 110 is used for screen display, and the light-transmitting area 130 can allow external light to pass through the display panel 100, thereby facilitating light collection by the camera module 140.
  • the annular area 120 isolates the display area 110 and the light-transmitting area 130, thereby improving the packaging effect of the display panel 100.
  • the display area 110 includes: a substrate 101, a first inorganic layer 102, an organic stack 103, an organic light emitting layer 104 and a thin film encapsulation layer 105.
  • a TFT device layer (not shown) is formed between the substrate 101 and the organic stack 103, and the TFT device layer includes TFT devices and metal traces to form a pixel drive for controlling the light emission of the organic light emitting layer 104
  • the TFT device layer usually includes a plurality of insulating layers.
  • the TFT device layer and the substrate 101 further include a buffer layer and/or a barrier layer, and the buffer layer or the barrier layer is silicon oxide or silicon nitride that can block water and oxygen, and is formed by a vapor deposition method.
  • the substrate 101 is a flexible substrate, and the material of the substrate 101 is polyimide.
  • the substrate 101 can be made of polyimide material to have flexibility.
  • the first inorganic layer 102 includes one or more of the buffer layer, barrier layer, and insulating layer.
  • the organic stack 103 is disposed on a side of the first inorganic layer 102 away from the substrate 101; the organic stack 103 may include at least two second organic layers 1031, and the second organic layer 1031 may be The flat layer and the pixel definition layer located above the TFT device layer.
  • the TFT device layer includes an organic insulating layer, and the organic stack 103 may also include one or more organic insulating layers in the TFT device layer.
  • the organic light-emitting layer 104 is disposed on the side of the organic stack 103 away from the first inorganic layer 102.
  • the organic light-emitting layer 104 may be a film layer formed of organic materials in an OLED device layer.
  • the OLED device layer specifically includes an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and a cathode.
  • the corresponding organic light emitting layer 104 includes a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer.
  • the hole injection layer covers the anode; the hole transport layer covers the side of the hole injection layer away from the anode; the light-emitting layer covers the hole transport layer away from the anode; One side of the hole transport layer; the electron transport layer covers the side of the light emitting layer away from the hole transport layer; the electron injection layer covers the side of the electron transport layer away from the light emitting layer.
  • the cathode covers the side of the electron injection layer away from the electron transport layer.
  • the organic light emitting layer 104 includes a red pixel unit, a green pixel unit, and a blue pixel unit. Generally, each pixel of the display panel 100 is selected from one color unit of a red pixel unit, a green pixel unit and a blue pixel unit. And the color unit between adjacent pixels is different.
  • the thin-film encapsulation layer 105 is provided on the side of the organic light-emitting layer 104 away from the organic stack 103; the thin-film encapsulation layer 105 is used to protect the devices of the display panel 100 from the influence of water and oxygen, thereby extending The service life of the display panel 100.
  • the thin film encapsulation layer 105 includes: a second inorganic layer 1051, a first organic layer 1052, and a third inorganic layer 1053.
  • the second inorganic layer 1051 is disposed on the side of the organic light-emitting layer 104 away from the organic stack 103; the material of the second inorganic layer 1051 is silicon oxide with water and oxygen barrier; the second inorganic layer 1051 Manufactured by vapor deposition.
  • the first organic layer 1052 is disposed on a side of the second inorganic layer 1051 away from the organic light-emitting layer 104; the second inorganic layer 1051 is prepared by an inkjet printing method.
  • the third inorganic layer 1053 is disposed on the side of the first organic layer 1052 away from the second inorganic layer 1051.
  • the material of the third inorganic layer 1053 is silicon oxide with barrier water and oxygen; the third inorganic layer 1053 is made by vapor deposition.
  • the light-transmitting area 130 is a through hole 1301 that penetrates the entire display panel 100; the through-hole 1301 is a cylinder with a side wall; the light-transmitting area 130 is used for The penetration of external light facilitates the collection of the camera module 140 of the display device, and can make the collection effect better.
  • the distance between the groove 1201 and the side wall is 10um-200um.
  • the optimal value is 50 nm, and it can also be 20 nm, 30 nm, 60 nm or 80 nm.
  • the distance between the groove 1201 and the side wall is the width of the gap area of the present invention. The longer the width of the gap area, the better the packaging effect of the present invention.
  • the first inorganic layer 102 is provided with at least one groove 1201.
  • the organic light-emitting layer 104 in and around the through hole 1301 is removed by laser etching;
  • the organic light-emitting layer 104 and the organic stack 103 in the display area are reserved for the display of the display panel 100; therefore, in FIG. 2, the organic light-emitting layer 104 and the organic stack 103 are disconnected.
  • the organic stack 103 forms a slope 1032, and the organic light-emitting layer 104 is attached to the organic stack 103 and attached to the first inorganic layer 102 along the slope 1032 , The organic light emitting layer 104 does not reach the groove 1201.
  • a thin film encapsulation layer 105 is fabricated. Since the organic light-emitting layer 104 is separated from the through hole 1301, the organic light-emitting layer 104 can be well protected.
  • the groove 1201 includes a groove bottom and a peripheral wall surrounding the groove bottom; the distance from the groove bottom to the substrate 101 is 10 nm to 500 nm. The most preferred is 200nm, and it can also be 50nm, 100nm, 250nm or 450nm.
  • the cross section of the groove 1201 is trapezoidal, with a narrow top and a wide bottom.
  • the trapezoid has an upper base and a lower base; the length of the lower base is greater than the length of the lower base. Since the bottom bottom is directly in contact with the encapsulation layer, the length of the bottom bottom is set to be longer, mainly to increase the area of the encapsulation layer, which can further improve the protection of the organic light emitting layer 104 of the present invention.
  • the first inorganic layer 102 is formed with at least one dam 1202, and the dam 1202 is located on one side of the groove 1201 and close to the light transmission area 130. That is, the dam 1202 is located on the side of the groove 1201 close to the light-transmitting area 130.
  • the thin film encapsulation layer 105 covers the dam 1202.
  • the groove 1201 and the dam 1202 are provided in the first inorganic layer 102 of the annular region 120. Therefore, when the first organic layer 1052 is in inkjet printing, the groove 1201 structure and the dam 1202 form a retaining wall structure, which can effectively block the first organic layer during inkjet printing. 1052's flow. In particular, the flow of the first organic layer 1052 to the through hole is effectively blocked, thereby achieving the purpose of precision packaging.
  • the second inorganic layer 1051 and the third inorganic layer 1053 are further formed on the dam 1202 in sequence.
  • the layered structure of the annular region 120 does not form the organic light emitting layer 104, but directly provides the thin film encapsulation layer 105; and the first inorganic layer 102 and the second inorganic layer are provided on the dam 1202 1051 and the third inorganic layer 1053. Therefore, the present invention can increase the packaging area and improve the packaging effect.
  • the first inorganic layer 102, the second inorganic layer 1051, and the third inorganic layer 1053 are in close contact with each other to further prevent water and oxygen from affecting the organic light-emitting layer of the display panel 100 104.
  • the structure of the thin film encapsulation layer 105 on the dam 1202 directly increases the area of the encapsulation layer to the display panel 100 of the present invention, improves the encapsulation effect of the display panel 100, and prevents the light-transmitting area
  • the water and oxygen of 130 affect the display panel 100, thereby prolonging the service life of the display panel 100.
  • dam 1202 When preparing the dam 1202, it is prepared together with the groove 1201, and the first inorganic layer 102 is thinned to form a dam 1202.
  • the second inorganic layer 1051 covers the entire display panel 100, that is, from the organic light emitting layer 104 of the display area 110 to the first inorganic layer 102 around the through hole 1301, That is, the groove 1201 and the dam 1301 covering the display area 100 and the annular area 120.
  • the first organic layer 1052 covers the groove 1201 from the display area 110, and the second inorganic layer 1051 is attached along the direction of the slope 1032 at the break, and fills the groove 1201. Due to the blocking effect of the dam 1201, the first organic layer 1052 can be prevented from overflowing during preparation.
  • the third inorganic layer 1053 is attached to the first organic layer 1052 and the second inorganic layer 1051 on the dam 1202.
  • the dam 1202 can be provided with slots, that is, slots are opened on the first inorganic layer 102, which can further increase the area of the package layer and improve the package effect of the present invention.
  • another groove 1201a is further formed on the dam 1202.
  • another groove 1201a is provided on the first inorganic layer 102, which can further increase the area of the packaging layer and improve the packaging effect of the present invention.
  • FIG. 3 can also be understood in this way.
  • Another groove 1201a and another dam 1202a are further formed on the dam 1202, so that the annular area 120 has two grooves 1201, 1201a and two Dams 1202, 1202a.
  • the second inorganic layer 1051 and the third inorganic layer 1053 are formed on the other groove 1201a and the other dam 1202a.
  • the display panel 100 of the present invention can change the number of grooves and dams of the annular area 120 according to the needs of implementation.
  • the present invention also provides a display device, including the display panel 100 and a camera module 140, and the camera module 140 is disposed under the light-transmitting area 130.
  • the display panel 100 includes a display area 110, a light-transmitting area 130 and an annular area 120.
  • the display area 110 surrounds the annular area 120, and the annular area 120 surrounds the transparent area 130.
  • the display area 110 is used for screen display, and the light-transmitting area 130 is used to allow external light to pass through, so as to facilitate the camera module 140 to collect light.
  • the first inorganic layer 102 is provided with at least one groove 1201 and at least one dam 1202.
  • the thin film encapsulation layer 105 directly covers the groove 1201.
  • the cross section of the groove 1201 is trapezoidal, and the trapezoid has an upper bottom and a lower bottom; the length of the lower bottom is greater than the length of the lower bottom. Since the bottom bottom is directly in contact with the encapsulation layer, setting the length of the bottom bottom mainly increases the area of the encapsulation layer, which can improve the packaging effect of the present invention.
  • the first inorganic layer 102, the second inorganic layer 1051, and the third inorganic layer 1053 are in close contact with each other to further prevent water and oxygen from affecting the organic light-emitting layer of the display panel 100 104.
  • the encapsulation layer structure on the dam 1202 directly increases the encapsulation area of the display panel 100 according to the present invention, improves the encapsulation effect of the display panel 100, and further extends the service life of the display panel 100.

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

Abstract

一种显示面板(100)及显示装置,包括显示区(110)、透光区(130)以及环形区(120),显示区(110)围绕环形区(120),环形区(120)围绕透光区(130),显示区(110)包括:基板(101);第一无机层(102),设于基板(101)上;有机叠层(103),设于无机层(102)远离基板(101)的一侧;有机发光层(104),设于有机叠层(103)远离无机层(102)的一侧;薄膜封装层(105),设于有机发光层(104)远离有机叠层(103)的一侧;其中,透光区(130)穿透显示面板(100);环形区(120)形成于第一无机层(102)上,并由薄膜封装层(105)覆盖。

Description

显示面板及显示装置 技术领域
本发明涉及液晶显示技术领域,尤其涉及一种显示面板及显示装置。
背景技术
现阶段显示面板飞速发展,各种屏幕技术的出现为电子终端提供的无限可能。特别是以OLED(有机发光二极管)为代表的显示技术的快速应用,各种以“全面屏”、“异形屏”、“屏下发声”、“屏下指纹”等为卖点的移动终端开始快速推广。
为了提高电子产品的屏占比,显示面板上的非显示区域被压缩得越来越小。一般为了实现全面屏的提案,通过在显示面板的显示区设置了透光区用以透过光线。在制作透光区的时候,需要在显示面板上进行挖孔。那么在切割的时候会造成有机发光二极管器件层侧边暴露在空气中,空气中的水氧会从有机发光二极管器件层侧边渗入造成显示面板的封装失效。
因此,有必要提供一种新的显示面板及显示装置,提高屏下摄像头OLED显示面板的封装效果,解决现有技术中显示面板封装失效的问题。
发明概述
技术问题
本发明的目的在于,本发明提供一种显示面板及显示装置,其设置至少一环形区,以隔离显示区与透光区,从而改善显示面板的封装效果;同时,设置所述环形区,还能够将透光区周围的薄膜封装层的接触面积增大,以更进一步提高显示面板的封装效果。
问题的解决方案
技术解决方案
为解决上述技术问题,本发明提供一种显示面板,包括显示区、透光区以及环形区,所述显示区围绕所述环形区,所述环形区围绕所述透光区,所述显示区包括:基板;第一无机层,设于所述基板上;有机叠层,设于所述无机层远离所述基板的一侧;有机发光层,设于所述有机叠层远离所述无机层的一侧;薄 膜封装层,设于所述有机发光层远离所述有机叠层的一侧;其中,所述透光区能够让光线穿透所述显示面板;所述环形区形成于所述第一无机层上,并由所述薄膜封装层覆盖。
进一步地,在所述环形区,所述第一无机层设有至少一凹槽,所述凹槽直接由所述薄膜封装层覆盖。
进一步地,在所述环形区,所述第一无机层形成有至少一堤坝,所述堤坝位于所述凹槽的一侧,且靠近所述透光区,所述薄膜封装层覆盖所述堤坝。
进一步地,所述薄膜封装层包括:第二无机层,设于所述有机发光层远离所述有机叠层的一侧;第一有机层,设于所述第二无机层远离所述有机发光层的一侧;第三无机层,设于所述第一有机层远离所述第二无机层的一侧。
进一步地,所述透光区为一通孔,所述通孔贯穿所述显示面板;所述有机叠层至少包括三层第二有机层。
进一步地,在所述堤坝上依次形成有所述第二无机层以及所述第三无机层。
进一步地,在所述环形区,所述第一无机层还设有另一凹槽及另一堤坝,在所述另一凹槽与所述另一堤坝上均依次形成有所述第二无机层以及所述第三无机层。
进一步地,所述凹槽的截面为上窄下宽的梯形;所述凹槽包括一槽底以及围绕所述槽底的周壁;所述槽底到所述基板的距离为10nm~500nm;所述通孔为一圆柱,具有一侧壁;所述凹槽到侧壁的最短距离为10um~200um。
进一步地,所述第二无机层和所述第三无机层通过气相沉积法形成;所述第一有机层通过喷墨打印法形成所述第一无机层、第二无机层和所述第三无机层的材料为具有阻隔水氧的氧化硅。
本发明提供一种显示装置,包括所述显示面板,所述显示装置还包括一摄像模块,所述摄像模块设于所述透光区下方。
发明的有益效果
有益效果
本发明提出一种显示面板及显示装置,其设置至少一环形区,以隔离显示区与透光区,从而改善显示面板的封装效果;同时,设置所述环形区,还能够将透 光区周围的薄膜封装层的接触面积增大,以更进一步提高显示面板的封装效果,进而可以提高显示面板的使用寿命。
对附图的简要说明
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明显示面板的俯视图;
图2为本发明显示面板的一实施例的结构示意图;
图3为本发明显示面板的另一实施例的部分结构示意图。
发明实施例
具体实施方式
以下是各实施例的说明是参考附加的图式,用以例示本发明可以用实施的特定实施例。本发明所提到的方向用语,例如上、下、前、后、左、右、内、外、侧等,仅是参考附图式的方向。本发明提到的元件名称,例如第一、第二等,仅是区分不同的元部件,可以更好的表达。在图中,结构相似的单元以相同标号表示。
本文将参照附图来详细描述本发明的实施例。本发明可以表现为许多不同形式,本发明不应仅被解释为本文阐述的具体实施例。本发明提供实施例是为了解释本发明的实际应用,从而使本领域其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改方案。
如图1所示,本发明提供一种显示面板100,在本实施例中,所述显示面板100包括显示区110、透光区130以及环形区120。所述显示区110围绕所述环形区120,所述环形区120围绕所述透光区130。
所述显示区110用于屏幕显像,所述透光区130能够使外界光线透过显示面板100,从而方便摄像模块140进行光线的采集。所述环形区120隔离所述显示区110与透光区130,从而改善显示面板100的封装效果。
如图2所示,所述显示区110包括:基板101、第一无机层102、有机叠层103、有机发光层104以及薄膜封装层105。
所述基板101和所述有机叠层103之间形成有TFT器件层(未图示),所述TFT器件层中包括TFT器件和金属走线,用以形成控制有机发光层104发光的像素驱动电路,通常所述TFT器件层中包括多个绝缘层。所述TFT器件层与所述基板101之间还包括缓冲层和/或阻隔层,所述缓冲层或阻隔层为具有阻隔水氧的氧化硅或氮化硅,通过气相沉积方法形成。
所述基板101为柔性基板,所述基板101的材料为聚酰亚胺,通过聚酰亚胺材料制成可以使得所述基板101具有柔性特性。
所述第一无机层102包括所述缓冲层、阻隔层以及绝缘层中的一层或多层。
所述有机叠层103设于所述第一无机层102远离所述基板101的一侧;所述有机叠层103可以包括至少两层第二有机层1031,所述第二有机层1031可以是位于TFT器件层之上的平坦层和像素定义层。在其它实施例中,TFT器件层中包括有机绝缘层,所述有机叠层103也可以包括TFT器件层中一层或多层有机绝缘层。
所述有机发光层104设于所述有机叠层103远离所述第一无机层102的一侧。
所述有机发光层104可以为OLED器件层中有机材料形成的膜层,所述OLED器件层具体包括阳极、空穴注入层、空穴传输层、发光层、电子传输层、电子注入层以及阴极,对应的所述有机发光层104包括空穴注入层、空穴传输层、发光层、电子传输层、电子注入层。
所述空穴注入层覆于所述阳极上;所述空穴传输层覆于所述空穴注入层远离所述阳极的一侧;所述发光层覆于所述空穴传输层远离所述空穴传输层的一侧;所述电子传输层覆于所述发光层远离所述空穴传输层的一侧;所述电子注入层覆于所述电子传输层远离所述发光层的一侧;所述阴极覆于所述电子注入层远离所述电子传输层的一侧。
所述有机发光层104包括红色像素单元、绿色像素单元和蓝色像素单元。一般所述显示面板100的每个像素均选自红色像素单元、绿色像素单元和蓝色像素单元的其中一种颜色单元。并且在相邻像素间的颜色单元不相同。
所述薄膜封装层105设于所述有机发光层104远离所述有机叠层103的一侧;所 述薄膜封装层105用以保护所述显示面板100的器件不受水氧影响,进而可以延长所述显示面板100的使用寿命。
所述薄膜封装层105包括:第二无机层1051、第一有机层1052以及第三无机层1053。
所述第二无机层1051设于所述有机发光层104远离所述有机叠层103的一侧;所述第二无机层1051材料为具有阻隔水氧的氧化硅;所述第二无机层1051通过气相沉积制得。
所述第一有机层1052设于所述第二无机层1051远离所述有机发光层104的一侧;所述第二无机层1051通过喷墨打印的方法制备得到。
所述第三无机层1053设于所述第一有机层1052远离所述第二无机层1051的一侧。所述第三无机层1053材料为具有阻隔水氧的氧化硅;所述第三无机层1053通过气相沉积制得。
在本实施例中,所述透光区130为一通孔1301,所述通孔1301贯穿整个显示面板100;所述通孔1301为一圆柱,具有一侧壁;所述透光区130用于外界光线的透过,方便显示装置的摄像模块140采集,可以使采集的效果更好。
所述凹槽1201到侧壁的距离为10um~200um。最优为50nm,也可以为20nm、30nm、60nm或80nm。实际上,所述凹槽1201到所述侧壁的距离既是本发明所述间隙区的宽度,所述间隙区的宽度越长,本发明的封装效果越好。
在所述环形区120,所述第一无机层102设有至少一凹槽1201。
在所述凹槽1201内去除所述有机叠层103以及所述有机发光层104,再由所述薄膜封装层105直接覆盖所述凹槽1201。所以从图2中可以看到,所述显示区110到所述环形区120的层状结构具有坡道形状。
具体地讲,在制备所述显示面板100的时候,蒸镀完成所述有机发光层104之后,将所述通孔1301内及周围10um~200um里的有机发光层104用激光刻蚀去除;只保留了所述显示区的有机发光层104以及有机叠层103,用以显示面板100的显示;所以在图2中,看到有机发光层104以及有机叠层103的断开。
在刻蚀的时候,所述有机叠层103形成一斜坡1032,而所述有机发光层104贴附所述有机叠层103并沿着所述斜坡1032贴附在所述第一无机层102上,所述有机 发光层104并未到达所述凹槽1201处。接着制作薄膜封装层105,由于所述有机发光层104与所述通孔1301隔开,可以很好的保护有机发光层104。
所述凹槽1201包括一槽底以及围绕所述槽底的周壁;所述槽底到所述基板101的距离为10nm~500nm。最优为200nm,也可以为50nm、100nm、250nm或450nm。
所述凹槽1201的截面为梯形,其上窄下宽。具体来讲,所述梯形具有一上底和一下底;所述下底的长度大于所述下底的长度。由于所述下底直接与所述封装层接触,设置所述下底的长度较长,主要是为了提高所述封装层的面积,可以进一步提高本发明对有机发光层104的保护。
在所述环形区120,所述第一无机层102形成有至少一堤坝1202,所述堤坝1202位于所述凹槽1201的一侧,且靠近所述透光区130。亦即,所述堤坝1202位于所述凹槽1201的靠近所述透光区130的那一侧。所述薄膜封装层105覆盖所述堤坝1202。
由于在所述环形区120的第一无机层102设置所述凹槽1201及所述堤坝1202。因此,当所述第一有机层1052在喷墨打印的时候,所述凹槽1201结构与所述堤坝1202形成一挡墙结构,可以有效的阻挡在喷墨打印的时候所述第一有机层1052的流动。尤其是,有效的阻挡所述第一有机层1052向所述通孔流动,从而实现精密封装的目的。
在所述堤坝1202上还依次形成有所述第二无机层1051以及第三无机层1053。
所述环形区120的层状结构并没有形成所述有机发光层104,而是直接设置所述薄膜封装层105;以及在所述堤坝1202上设置所述第一无机层102、第二无机层1051以及第三无机层1053。因此本发明能够增大封装面积,提高了封装效果。
在所述堤坝1202上,所述第一无机层102、所述第二无机层1051以及所述第三无机层1053之间相互紧密接触,进一步阻止水氧影响所述显示面板100的有机发光层104。
并且,位于所述堤坝1202上的所述薄膜封装层105结构直接给本发明的所述显示面板100增加了封装层的面积,提高了所述显示面板100的封装效果,防止所述透光区130的水氧影响所述显示面板100,进而可以延长所述显示面板100的使 用寿命。
在制备堤坝1202的时候,是与所述凹槽1201一同制备,在所述第一无机层102上进行减薄,形成一堤坝1202。
在制备所述薄膜封装层105的时候,所述第二无机层1051覆盖整个显示面板100,即从所述显示区110的有机发光层104到所述通孔1301周围的第一无机层102,即覆盖所述显示区100以及所述环形区120的凹槽1201以及堤坝1301。
所述第一有机层1052从所述显示区110覆盖至所述凹槽1201,在断开处,沿斜坡1032方向贴附所述第二无机层1051,并填充所述凹槽1201。由于堤坝1201的阻挡效果,可以防止所述第一有机层1052在制备的时候溢出。
所述第三无机层1053贴附所述第一有机层1052以及所述堤坝1202上的第二无机层1051。
本发明为了可以有效的增加所述封装的面积,在堤坝1202可以设置槽孔,即在所述第一无机层102上开设槽孔,可以更进一步的增加封装层面积,提高本发明的封装效果。
如图3所示,在另一实施例中,本发明显示面板100为了能够更有效增强封装效果,在所述堤坝1202上进一步形成有另一凹槽1201a。具体地讲,在所述第一无机层102上再开设另一凹槽1201a,可以更进一步的增加封装层面积,提高本发明的封装效果。
当然,也可以这样理解图3所示的实施例,在所述堤坝1202上进一步形成有另一凹槽1201a和另一堤坝1202a,使得所述环形区120具有两个凹槽1201、1201a和两个堤坝1202、1202a。其中在所述另一凹槽1201a和所述另一堤坝1202a上均形成有所述第二无机层1051以及所述第三无机层1053。
可见,本发明显示面板100可以根据实现需要而改变所述环形区120的凹槽和堤坝的数量。
本发明还提供了一种显示装置,包括所述显示面板100以及摄像模块140,所述摄像模块140设于所述透光区130下方。
所述显示面板100包括显示区110、透光区130以及环形区120。所述显示区110围绕所述环形区120,所述环形区120围绕所述透光区130。
所述显示区110用于屏幕显像,所述透光区130用于使外界光线的透过,方便所述摄像模块140进行光线的采集。
在所述环形区120,所述第一无机层102设有至少一凹槽1201以及至少一堤坝1202。所述薄膜封装层105直接覆盖所述凹槽1201。所述凹槽1201的截面为梯形,所述梯形具有一上底和一下底;所述下底的长度大于所述下底的长度。由于所述下底直接与所述封装层接触,设置所述下底的长度,主要是提高所述封装层的面积,可以提高本发明的封装效果。
在所述堤坝1202上,所述第一无机层102、所述第二无机层1051以及所述第三无机层1053之间相互紧密接触,进一步阻止水氧影响所述显示面板100的有机发光层104。
并且,所述堤坝1202上的封装层结构直接给本发明的增加了显示面板100的封装的面积,提高了所述显示面板100的封装效果,进而可以延长所述显示面板100的使用寿命。
本发明的技术范围不仅仅局限于所述说明中的内容,本领域技术人员可以在不脱离本发明技术思想的前提下,对所述实施例进行多种变形和修改,而这些变形和修改均应当属于本发明的范围内。

Claims (12)

  1. 一种显示面板,其中,包括显示区、透光区以及环形区,所述显示区围绕所述环形区,所述环形区围绕所述透光区,所述显示区包括:
    基板;
    第一无机层,设于所述基板上;
    有机叠层,设于所述无机层远离所述基板的一侧;
    有机发光层,设于所述有机叠层远离所述无机层的一侧;
    薄膜封装层,设于所述有机发光层远离所述有机叠层的一侧;
    其中,所述透光区能够让光线穿透所述显示面板;所述环形区形成于所述第一无机层上,并由所述薄膜封装层覆盖。
  2. 根据权利要求1所述的显示面板,其中,
    在所述环形区,所述第一无机层设有至少一凹槽,所述凹槽直接由所述薄膜封装层覆盖。
  3. 根据权利要求2所述的显示面板,其中,
    在所述环形区,所述第一无机层形成有至少一堤坝,所述堤坝位于所述凹槽的一侧,且靠近所述透光区,所述薄膜封装层覆盖所述堤坝。
  4. 根据权利要求3所述的显示面板,其中,
    所述薄膜封装层包括:
    第二无机层,设于所述有机发光层远离所述有机叠层的一侧;
    第一有机层,设于所述第二无机层远离所述有机发光层的一侧;
    第三无机层,设于所述第一有机层远离所述第二无机层的一侧。
  5. 根据权利要求2所述的显示面板,其中,
    所述透光区为一通孔,所述通孔贯穿所述显示面板;
    所述有机叠层至少包括三层第二有机层。
  6. 根据权利要求4所述的显示面板,其中,
    在所述堤坝上依次形成有所述第二无机层以及所述第三无机层。
  7. 根据权利要求6所述的显示面板,其中,
    在所述环形区,所述第一无机层还设有另一凹槽及另一堤坝,在所述另一凹槽与所述另一堤坝上均依次形成有所述第二无机层以及所述第三无机层。
  8. 根据权利要求5所述的显示面板,其中,
    所述凹槽的截面为上窄下宽的梯形;
    所述凹槽包括一槽底以及围绕所述槽底的周壁;
    所述槽底到所述基板的距离为10nm~500nm;
    所述通孔为一圆柱,具有一侧壁;
    所述凹槽到侧壁的最短距离为10um~200um。
  9. 根据权利要求3所述的显示面板,其中,
    所述第二无机层和所述第三无机层通过气相沉积法形成;
    所述第一有机层通过喷墨打印法形成所述第一无机层、第二无机层和所述第三无机层的材料为具有阻隔水氧的氧化硅。
  10. 一种显示装置,包括如权利要求1的显示面板,所述显示装置还包括一摄像模块,所述摄像模块设于所述透光区下方。
  11. 一种显示装置,包括如权利要求2的显示面板,所述显示装置还包括一摄像模块,所述摄像模块设于所述透光区下方。
  12. 一种显示装置,包括如权利要求3的显示面板,所述显示装置还包括一摄像模块,所述摄像模块设于所述透光区下方。
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