WO2019006918A1 - Woled显示面板以及显示装置 - Google Patents

Woled显示面板以及显示装置 Download PDF

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WO2019006918A1
WO2019006918A1 PCT/CN2017/107495 CN2017107495W WO2019006918A1 WO 2019006918 A1 WO2019006918 A1 WO 2019006918A1 CN 2017107495 W CN2017107495 W CN 2017107495W WO 2019006918 A1 WO2019006918 A1 WO 2019006918A1
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pixel
layer
sub
spacer
light emitting
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PCT/CN2017/107495
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English (en)
French (fr)
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聂诚磊
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深圳市华星光电半导体显示技术有限公司
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Priority to US15/741,170 priority Critical patent/US20190013370A1/en
Publication of WO2019006918A1 publication Critical patent/WO2019006918A1/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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • 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
    • H10K59/123—Connection of the pixel electrodes to the thin film transistors [TFT]
    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a WOLED display panel and a display device.
  • OLED Organic Light Emitting Diode
  • OLED has self-luminous characteristics, using a very thin organic material coating and a glass substrate. When a current passes, the organic material emits light, and the organic light emitting diode displays a large viewing angle of the screen. And can significantly save power, so the application of organic light-emitting diodes is now more and more extensive.
  • the core component of the OLED display device is an OLED display panel.
  • the structure of the OLED display panel generally includes: a TFT array substrate and an anode layer sequentially formed on the TFT substrate, a pixel defining layer, a first common layer for transporting holes, and a light emitting layer. a second common layer for transporting electrons and a cathode layer.
  • the working principle of the OLED display panel is that under the action of the electric field between the anode and the cathode, holes are transmitted to the luminescent layer through the first common layer, electrons are transmitted to the luminescent layer through the second common layer, and holes and electrons are within the luminescent layer. Composite and then illuminate.
  • the OLED and CF layer superposition structure does not require a precise mask process, and can realize the high resolution of the OLED display, and is a widely used one.
  • the illuminating layer generally includes a blue sub-emissive layer, a green photon illuminating layer and a red photon illuminating layer arranged in a stack, and the adjacent two sub-emissive layers may also be provided with a good ability to transport electrons and holes. Interlayer Layer.
  • the functional layer introduces many excellent transport materials, such as the first common layer, the second common layer, and the spacer layer.
  • the lateral current of the display panel also increases, resulting in crosstalk, that is, when one of the sub-pixels (target sub-pixel) is lit, a small amount of holes can be injected into the adjacent sub-pixel through the transmission function layer, in the adjacent sub-pixel
  • the pixel is combined with electrons to emit light, thereby causing the illumination of the target sub-pixel to be impure.
  • This phenomenon of light emission is called leakage light phenomenon, and the light leakage phenomenon is particularly obvious in the full-color WOLED display panel, thereby reducing The display quality of the WOLED display panel.
  • the present invention provides a WOLED display panel, which can effectively reduce light leakage between adjacent two sub-pixels and improve display quality of the display panel.
  • a WOLED display panel includes a TFT array substrate and a color filter layer and a light emitting structure layer sequentially disposed on the TFT array substrate, wherein the light emitting structure layer includes an anode layer, a pixel defining layer, and a white organic a light emitting layer and a cathode layer, the pixel defining layer comprising a pixel opening portion and a pixel spacing portion for spacing adjacent two pixel opening portions, each of the pixel spacing portions being provided with a raised insulating spacer A portion of the white organic light-emitting layer that covers the spacer substantially forms a convex curved portion.
  • the spacer has a trapezoidal cross section, and the angle between the side surface and the bottom surface of the spacer is not less than 60°.
  • the spacer has a rectangular or inverted trapezoidal cross section.
  • the length of the pixel opening is H1
  • the length of the spacer is H2
  • the width of the top of the pixel spacer is D1
  • the width of the spacer is D2
  • the white organic light emitting layer includes a first common layer for sequentially transporting holes, a blue light emitting layer, a green light emitting layer, a red light emitting layer, and a second common layer for transmitting electrons.
  • a spacer layer is disposed between the blue light emitting layer and the green light emitting layer, and the spacer layer has a function of transmitting electrons and holes.
  • Each of the pixel opening portions corresponds to one sub-pixel, and the red light sub-pixel, the green sub-pixel, the blue sub-pixel, and the white sub-pixel are disposed in the light-emitting structure layer, and the color filter layer corresponds to a red photoresist is disposed at a position of the red sub-pixel, a green photoresist is disposed at a position corresponding to the green sub-pixel, and a blue photoresist is disposed at a position corresponding to the blue sub-pixel, corresponding to the white
  • the position of the sub-pixel is set with a transparent unit.
  • the anode layer comprises a plurality of anodes, each of the anodes corresponds to one sub-pixel; the cathode layer covers all sub-pixels in a continuous manner, and all the sub-pixels share the cathode layer.
  • the present invention also provides a display device including a driving unit and a WOLED display panel as described above, the driving unit providing a driving signal to the WOLED display panel to cause the WOLED display panel to display a picture.
  • the WOLED display panel provided by the embodiment of the present invention has a convex insulating spacer between two adjacent sub-pixels, and the organic light-emitting layer correspondingly covers the partition.
  • the portion of the pad forms a convex winding portion, thereby increasing the lateral propagation path of the hole, reducing the leakage current between the adjacent two sub-pixels, effectively reducing the relationship between the adjacent two sub-pixels Light leakage increases the display quality of the display panel.
  • FIG. 1 is a schematic structural diagram of a WOLED display panel according to an embodiment of the present invention.
  • FIG. 2 is an exemplary diagram of a sub-pixel arrangement structure in an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a white organic light emitting layer in an embodiment of the present invention.
  • Figure 4 is a schematic view showing the structure of a spacer in another preferred embodiment of the present invention.
  • Figure 5 is a schematic view showing the structure of a spacer in still another preferred embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • the WOLED display panel includes a TFT array substrate 1 and a color filter layer 2 disposed on the TFT array substrate 1 in sequence.
  • the light emitting structure layer 3 includes an anode layer 31, a pixel defining layer 32, a white organic light emitting layer 33, and a cathode layer 34 which are sequentially disposed.
  • the pixel defining layer 32 includes a pixel opening portion 321 and a pixel spacing portion 322 for spacing adjacent two pixel opening portions 321 .
  • each of the pixel opening portions 321 corresponds to one sub-pixel, and the red light sub-pixel 3R, the green sub-pixel 3G, the blue sub-pixel 3B, and the white sub-pixel 3W are disposed in the light-emitting structure layer 3.
  • the position of the color filter layer 2 corresponding to the red sub-pixel 3R is provided with a red photoresist 2R, and the position corresponding to the green sub-pixel 3G is provided with a green photoresist 2G corresponding to the blue
  • the position of the sub-pixel 3B is provided with a blue photoresist 2B, and a position corresponding to the white sub-pixel 3W is provided with a transparent unit 2W.
  • the color filter layer 2 further includes a flat layer 21 covering the red photoresist 2R, the green photoresist 2G, the blue photoresist 2B, and the transparent material 2W, and the flat layer 21
  • the material is a transparent organic material, and accordingly, it is not necessary to use another transparent material corresponding to the position of the transparent unit 2W, and the flat layer 21 may be completely filled in the transparent unit 2W.
  • the anode layer 31 includes a plurality of anodes 311 , and each of the anodes 311 corresponds to one sub-pixel, that is, one anode 311 is disposed at the bottom of each of the pixel opening portions 321 .
  • the white organic light-emitting layer 33 and the cathode layer 34 cover all of the sub-pixels in a continuous manner, and all of the sub-pixels share the white organic light-emitting layer 33 and the cathode layer 34.
  • the white organic light-emitting layer 33 includes a first common layer 331 and a blue light-emitting layer (Blue Emissive Layer) for sequentially transporting holes on the anode layer 31.
  • B-EML blue light-emitting layer
  • G-EML Green Emissive Layer
  • R-EML Red Emissive Layer
  • the first common layer 331 includes a Hole Injection Layer (HIL) 331a and a Hole Transport Layer (HTL) 331b which are sequentially disposed in a direction away from the anode layer 31.
  • HIL Hole Injection Layer
  • HTL Hole Transport Layer
  • An electron blocking layer may be further disposed; the second common layer 335 includes an Electroinjection Layer (EIL) 335a and an electron transport layer (Electron Transport Layer) arranged in this order away from the cathode layer 34. , ETL) 335b, may further be provided with a hole blocking layer. Further, an interlayer layer 336 is further disposed between the blue light emitting layer 332 and the green light emitting layer 333. The spacer layer 336 has a function of transmitting electrons and holes.
  • EIL Electroinjection Layer
  • ETL Electro Transport Layer
  • a raised insulating spacer (Post Spacer, PS) 35 is disposed above the pixel spacing portion 322 of the pixel defining layer 32.
  • a portion of the organic light-emitting layer 33 corresponding to the spacer 35 forms a convex curved portion 33a, thereby increasing a lateral propagation path of the holes and reducing leakage current between adjacent two sub-pixels.
  • the light leakage phenomenon between two adjacent sub-pixels is effectively reduced, and the display quality of the display panel is improved.
  • the spacer 35 has a rectangular cross section, that is, an angle between the side surface of the spacer 35 and the bottom surface is 90°, and the white organic light emitting layer 33
  • the portion of the curved portion 33a corresponding to the side surface of the spacer 35 is small, the on-resistance is increased, and the leakage current is correspondingly reduced.
  • the spacer 35 located on the pixel spacer 322 is disposed to have a trapezoidal cross section. The steeper the slope (side surface) of the spacer 35, the thinner the portion of the curved portion 33a corresponding to the slope, the larger the on-resistance of the lateral conduction path and the smaller the leakage current.
  • the angle ⁇ between the side surface and the bottom surface of the spacer 35 is set to be not less than 60°.
  • the spacer 35 located on the pixel spacer 322 is disposed to have an inverted trapezoidal cross section, and at this time, the winding portion of the white organic light-emitting layer 33
  • the 33a may be broken with the main portion of the white organic light-emitting layer 33, which can more effectively prevent lateral propagation of leakage current and eliminate the problem of light leakage.
  • the length of the spacer 35 should be not less than the length of the pixel opening 321 , and the width of the spacer 35 is preferably not less than half of the width of the pixel spacer 322 .
  • the length of the pixel opening portion 321 is H1
  • the length of the spacer 35 is H2, then H1 ⁇ H2, the length H2 of the spacer 35 and the pixel opening.
  • the length H1 of the portion 321 is equal, the lateral leakage current can be effectively reduced, and of course, the length H2 is as long as possible.
  • the width of the top of the pixel spacer 322 is D1
  • the width of the spacer 35 is D2. It is preferable to set the width D2 to be equal to the width D1, and the larger the width of the spacer 35, the longer the conduction path of the lateral leakage current, and the smaller the leakage current.
  • the embodiment further provides a display device.
  • the display device includes a driving unit 200 and a display panel 100.
  • the driving unit 200 provides a driving signal to the display panel 100 to enable the display panel. 100 display screen.
  • the display panel 100 adopts the WOLED display panel provided by the above embodiments of the present invention.
  • the WOLED display panel provided by the embodiment of the present invention, in the OLED display panel, a convex insulating spacer is disposed between two adjacent sub-pixels, and a portion of the organic light-emitting layer corresponding to the spacer forms a convex curved portion, thereby increasing a lateral propagation path of the cavity, The leakage current between two adjacent sub-pixels is reduced, the light leakage between adjacent two sub-pixels is effectively reduced, and the display quality of the display panel is improved.

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Abstract

一种WOLED显示面板，包括TFT阵列基板（1）以及依次设置在TFT阵列基板（1）上的彩色滤光层（2）和发光结构层（3），其中，发光结构层（3）包括依次设置的阳极层（31）、像素定义层（32）、白光有机发光层（33）和阴极层（34），像素定义层（32）包括像素开口部（321）和用于间隔相邻两个像素开口部（321）的像素间隔部（322），每一像素间隔部（322）上设置有一凸起的绝缘的隔垫物（35），白光有机发光层（33）的对应覆盖隔垫物（35）的部分形成凸起的绕曲部（33a）。包含该WOLED显示面板的显示装置。

Description

WOLED显示面板以及显示装置 技术领域
本发明涉及显示器技术领域，尤其涉及一种WOLED显示面板以及显示装置。
背景技术
有机发光二极管(Organic Light Emitting Diode，OLED)具有自发光的特性，采用非常薄的有机材料涂层和玻璃基板，当电流通过时，有机材料就会发光，而且有机发光二极管显示屏幕可视角度大，并且能够显著节省电能，因此现在有机发光二极管的应用越来越广泛。
OLED显示装置的核心部件是OLED显示面板，OLED显示面板的结构通常包括：TFT阵列基板以及依次制作于TFT基板上的阳极层、像素定义层、用于传输空穴的第一公共层、发光层、用于传输电子的第二公共层以及阴极层。OLED显示面板的工作原理是在阳极和阴极之间电场的作用下，空穴通过第一公共层传输到发光层，电子通过第二公共层传输到发光层，空穴和电子在发光层之内复合进而发光。
为实现OLED显示器的全彩化，一种方式是通过白色有机发光二极管(White Organic Light Emitting Diode，WOLED)和彩色滤光(Color Filter，CF)层叠加来实现。其中，WOLED与CF层叠加结构不需要精准的掩膜工艺，就可以实现OLED显示器的高分辨率，是应用较为广泛的一种。WOLED显示面板中，发光层通常包括堆叠设置的蓝光子发光层、绿光子发光层和红光子发光层，相邻的两个子发光层之间还可以设置有具有良好的传输电子、空穴能力的间隔层(Intermediate Layer)。
随着显示面板分辨率的提高，单位面积内像素单元的个数也在不断增加，导致子像素之间的间隔距离不断减小，另外，为了提高显示效率，用于传输空穴、电子的各个功能层引入了很多优异的传输材料，例如第一公共层、第二公共层以及间隔层等。在子像素间距减小而功能层的传输性能不断提升的情况下， 显示面板的横向电流也增大，导致串扰，即，当点亮其中一个子像素(目标子像素)时，少量空穴可以通过传输功能层注入到相邻的子像素中，在相邻的子像素中与电子复合进而发光，由此导致目标子像素的发光不纯，这种发光现象称为泄露发光现象，这种漏光现象在全彩化的WOLED显示面板中的表现尤为明显，由此降低了WOLED显示面板的显示品质。
发明内容
鉴于现有技术存在的不足，本发明提供了一种WOLED显示面板，其可以有效地降低相邻两个子像素之间的漏光现象，提高显示面板的显示品质。
为了达到上述的目的，本发明采用了如下的技术方案：
一种WOLED显示面板，包括TFT阵列基板以及依次设置在所述TFT阵列基板上的彩色滤光层和发光结构层，其中，所述发光结构层包括依次设置的阳极层、像素定义层、白光有机发光层和阴极层，所述像素定义层包括像素开口部和用于间隔相邻两个像素开口部的像素间隔部，每一所述像素间隔部上设置有一凸起的绝缘的隔垫物，所述白光有机发光层的对应覆盖所述隔垫物的部分形成凸起的绕曲部。
其中，所述隔垫物的截面为梯形，所述隔垫物的侧面与底面的夹角不小于60°。
其中，所述隔垫物的截面为矩形或倒梯形。
其中，所述像素开口部的长度为H1，所述隔垫物的长度为H2，且H1≤H2。
其中，所述像素间隔部的顶部的宽度为D1，所述隔垫物的宽度为D2，且
Figure PCTCN2017107495-appb-000001
其中，所述白光有机发光层包括依次设置的用于传输空穴的第一公共层、蓝光发光层、绿光发光层、红光发光层和用于传输电子的第二公共层。
其中，所述蓝光发光层和所述绿光发光层之间还设置有间隔层，所述间隔层具有传输电子和空穴的功能。
其中，每一所述像素开口部对应于一个子像素，所述发光结构层中设置有红色子像素、绿色子像素、蓝色子像素和白色子像素，所述彩色滤光层中对应 于所述红色子像素的位置设置有红色光阻、对应于所述绿色子像素的位置设置有绿色光阻、对应于所述蓝色子像素的位置设置有蓝色光阻、对应于所述白色子像素的位置设置有透明单元。
其中，所述阳极层包括多个阳极，每一所述阳极对应于一个子像素；所述阴极层为整面连续的覆盖所有的子像素，所有的子像素共用所述阴极层。
本发明还提供了一种显示装置，其百科包括驱动单元和如上所述的WOLED显示面板，所述驱动单元向所述WOLED显示面板提供驱动信号以使所述WOLED显示面板显示画面。
相比于现有技术，本发明实施例提供的WOLED显示面板，该OLED显示面板中，相邻的两个子像素之间具有凸起的绝缘的隔垫物，有机发光层的对应覆盖所述隔垫物的部分形成凸起的绕曲部，由此增加了空穴的横向传播路径，减小了相邻的两个子像素之间的漏电流，有效地降低了相邻两个子像素之间的漏光现象，提高显示面板的显示品质。
附图说明
图1是本发明实施例提供的WOLED显示面板的结构示意图；
图2是本发明实施例中的子像素排布结构的示例性图示；
图3是本发明实施例中的白光有机发光层的结构示意图；
图4是本发明另一优选的实施例中的隔垫物的结构示意图；
图5是本发明又一优选的实施例中的隔垫物的结构示意图；
图6是本发明实施例提供的显示装置的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面结合附图对本发明的具体实施方式进行详细说明。这些优选实施方式的示例在附图中进行了例示。附图中所示和根据附图描述的本发明的实施方式仅仅是示例性的，并且本发明并不限于这些实施方式。
在此，还需要说明的是，为了避免因不必要的细节而模糊了本发明，在附图中仅仅示出了与根据本发明的方案密切相关的结构和/或处理步骤，而省略了 与本发明关系不大的其他细节。
本实施例首先提供了一种WOLED显示面板，如图1和图2所示，所述WOLED显示面板包括TFT阵列基板1以及依次设置在在所述TFT阵列基板1上的彩色滤光层2和发光结构层3。
其中，所述发光结构层3包括依次设置的阳极层31、像素定义层32、白光有机发光层33和阴极层34。所述像素定义层32包括像素开口部321和用于间隔相邻两个像素开口部321的像素间隔部322。具体地，每一所述像素开口部321对应于一个子像素，所述发光结构层3中设置有红色子像素3R、绿色子像素3G、蓝色子像素3B和白色子像素3W。
其中，所述彩色滤光层2中对应于所述红色子像素3R的位置设置有红色光阻2R、对应于所述绿色子像素3G的位置设置有绿色光阻2G、对应于所述蓝色子像素3B的位置设置有蓝色光阻2B、对应于所述白色子像素3W的位置设置有透明单元2W。在本实施例中，所述彩色滤光层2中还包括覆盖在所述红色光阻2R、绿色光阻2G、蓝色光阻2B和透明材料2W上的平坦层21，所述平坦层21的材料为透明的有机材料，由此，对应于透明单元2W的位置不需要再使用其他的透明材料，将所述平坦层21完全填充在所述透明单元2W即可。
其中，如图1所示，所述阳极层31包括多个阳极311，每一所述阳极311对应于一个子像素，即，每一个所述像素开口部321的底部设置有一个所述阳极311。所述白光有机发光层33和所述阴极层34为整面连续的覆盖所有的子像素，所有的子像素共用所述白光有机发光层33和所述阴极层34。
在本实施例中，如图3所示，所述白光有机发光层33包括依次设置在所述阳极层31上的用于传输空穴的第一公共层331、蓝光发光层(Blue Emissive Layer，B-EML)332、绿光发光层(Green Emissive Layer，G-EML)333、红光发光层(Red Emissive Layer，R-EML)334和用于传输电子的第二公共层335。其中，所述第一公共层331包括按照逐渐远离所述阳极层31的方向依次设置的空穴注入层(Hole Injection Layer，HIL)331a和空穴传输层(Hole Transport Layer，HTL)331b，还可以进一步地设置有电子阻挡层；所述第二公共层335则包括按照逐渐远离所述阴极层34的方向依次设置的电子注入层(Electron Injection Layer，EIL)335a和电子传输层(Electron Transport Layer，ETL)335b，还可以进一步地设置有空穴阻挡层。进一步地，所述蓝光发光层332和所述绿光发光层333之间还设置有间隔层(Intermediate Layer)336，所述 间隔层336具有传输电子和空穴的功能。
其中，参阅图1和图2，本实施例中，在所述像素定义层32的像素间隔部322的上方还设置有凸起的绝缘的隔垫物(Post Spacer，PS)35，所述白光有机发光层33的对应覆盖所述隔垫物35的部分形成凸起的绕曲部33a，由此增加了空穴的横向传播路径，减小了相邻的两个子像素之间的漏电流，有效地降低了相邻两个子像素之间的漏光现象，提高显示面板的显示品质。
其中，如图1所示，本实施例中，所述隔垫物35的截面为矩形，即所述隔垫物35的侧面与底面的夹角为90°，所述白光有机发光层33的绕曲部33a，其对应于所述隔垫物35的侧面的部分厚度较小，导通电阻增大，漏电流则相应的减小。在另外的实施例中，如图4所示，位于所述像素间隔部322上的隔垫物35则设置为截面为梯形。其中，所述隔垫物35的斜坡(侧面)越陡，所述绕曲部33a对应于斜坡上的部分越薄，横向导通通路的导通电阻越大，漏电流也越小，因此，所述隔垫物35的截面为梯形时，所述隔垫物35的侧面与底面的夹角α设置为不小于60°。在最为优选地的实施例中，如图5所示，位于所述像素间隔部322上的隔垫物35则设置为截面为倒梯形，此时，所述白光有机发光层33的绕曲部33a可能会与所述白光有机发光层33的主体部分发生断裂，能更有效地阻止漏电流的横向传播，消除漏光的问题。
其中，所述隔垫物35的长度应当不小于所述像素开口部321的长度，所述隔垫物35的宽度最好是不小于所述像素间隔部322的宽度的一半。具体地，如图2所示，所述像素开口部321的长度为H1，所述隔垫物35的长度为H2，则H1≤H2，所述隔垫物35的长度H2与所述像素开口部321的长度H1相等时即可有效地减少横向漏电流，当然长度H2是越长越好。所述像素间隔部322的顶部的宽度为D1，所述隔垫物35的宽度为D2，则
Figure PCTCN2017107495-appb-000002
最好是将宽度D2设置为与宽度D1相等，所述隔垫物35的宽度越大，横向漏电流的导通通路越长，漏电流也越小。
本实施例还提供了一种显示装置，如图6所示，所述显示装置包括驱动单元200和显示面板100，所述驱动单元200向所述显示面板100提供驱动信号以使所述显示面板100显示画面。其中，所述显示面板100采用了本发明如上实施例所提供的WOLED显示面板。
综上所述，本发明实施例提供的WOLED显示面板，该OLED显示面板中， 相邻的两个子像素之间具有凸起的绝缘的隔垫物，有机发光层的对应覆盖所述隔垫物的部分形成凸起的绕曲部，由此增加了空穴的横向传播路径，减小了相邻的两个子像素之间的漏电流，有效地降低了相邻两个子像素之间的漏光现象，提高显示面板的显示品质。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (18)

  1. 一种WOLED显示面板，包括TFT阵列基板以及依次设置在所述TFT阵列基板上的彩色滤光层和发光结构层，其中，所述发光结构层包括依次设置的阳极层、像素定义层、白光有机发光层和阴极层，所述像素定义层包括像素开口部和用于间隔相邻两个像素开口部的像素间隔部，每一所述像素间隔部上设置有一凸起的绝缘的隔垫物，所述白光有机发光层的对应覆盖所述隔垫物的部分形成凸起的绕曲部。
  2. 根据权利要求1所述的WOLED显示面板，其中，所述隔垫物的截面为梯形，所述隔垫物的侧面与底面的夹角不小于60°。
  3. 根据权利要求1所述的WOLED显示面板，其中，所述隔垫物的截面为矩形或倒梯形。
  4. 根据权利要求1所述的WOLED显示面板，其中，所述像素开口部的长度为H1，所述隔垫物的长度为H2，且H1≤H2。
  5. 根据权利要求1所述的WOLED显示面板，其中，所述像素间隔部的顶部的宽度为D1，所述隔垫物的宽度为D2，且
    Figure PCTCN2017107495-appb-100001
  6. 根据权利要求1所述的WOLED显示面板，其中，所述白光有机发光层包括依次设置的用于传输空穴的第一公共层、蓝光发光层、绿光发光层、红光发光层和用于传输电子的第二公共层。
  7. 根据权利要求6所述的WOLED显示面板，其中，所述蓝光发光层和所述绿光发光层之间还设置有间隔层，所述间隔层具有传输电子和空穴的功能。
  8. 根据权利要求1所述的WOLED显示面板，其中，每一所述像素开口部对应于一个子像素，所述发光结构层中设置有红色子像素、绿色子像素、蓝色子像素和白色子像素，所述彩色滤光层中对应于所述红色子像素的位置设置有红色光阻、对应于所述绿色子像素的位置设置有绿色光阻、对应于所述蓝色子像素的位置设置有蓝色光阻、对应于所述白色子像素的位置设置有透明单元。
  9. 根据权利要求8所述的WOLED显示面板，其中，所述阳极层包括多个阳极，每一所述阳极对应于一个子像素；所述阴极层为整面连续的覆盖所有的子像素，所有的子像素共用所述阴极层。
  10. 一种显示装置，包括驱动单元和WOLED显示面板，所述驱动单元向所述WOLED显示面板提供驱动信号以使所述WOLED显示面板显示画面；所述WOLED显示面板包括TFT阵列基板以及依次设置在所述TFT阵列基板上的彩色滤光层和发光结构层，其中，所述发光结构层包括依次设置的阳极层、像素定义层、白光有机发光层和阴极层，所述像素定义层包括像素开口部和用于间隔相邻两个像素开口部的像素间隔部，每一所述像素间隔部上设置有一凸起的绝缘的隔垫物，所述白光有机发光层的对应覆盖所述隔垫物的部分形成凸起的绕曲部。
  11. 根据权利要求10所述的显示装置，其中，所述隔垫物的截面为梯形，所述隔垫物的侧面与底面的夹角不小于60°。
  12. 根据权利要求10所述的显示装置，其中，所述隔垫物的截面为矩形或倒梯形。
  13. 根据权利要求10所述的显示装置，其中，所述像素开口部的长度为H1，所述隔垫物的长度为H2，且H1≤H2。
  14. 根据权利要求10所述的显示装置，其中，所述像素间隔部的顶部的宽度为D1，所述隔垫物的宽度为D2，且
    Figure PCTCN2017107495-appb-100002
  15. 根据权利要求10所述的显示装置，其中，所述白光有机发光层包括依次设置的用于传输空穴的第一公共层、蓝光发光层、绿光发光层、红光发光层和用于传输电子的第二公共层。
  16. 根据权利要求15所述的显示装置，其中，所述蓝光发光层和所述绿光发光层之间还设置有间隔层，所述间隔层具有传输电子和空穴的功能。
  17. 根据权利要求10所述的显示装置，其中，每一所述像素开口部对应于一个子像素，所述发光结构层中设置有红色子像素、绿色子像素、蓝色子像素和白色子像素，所述彩色滤光层中对应于所述红色子像素的位置设置有红色光阻、对应于所述绿色子像素的位置设置有绿色光阻、对应于所述蓝色子像素的位置设置有蓝色光阻、对应于所述白色子像素的位置设置有透明单元。
  18. 根据权利要求17所述的显示装置，其中，所述阳极层包括多个阳极，每一所述阳极对应于一个子像素；所述阴极层为整面连续的覆盖所有的子像素，所有的子像素共用所述阴极层。
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