WO2018188162A1 - 一种有机发光显示面板 - Google Patents

一种有机发光显示面板 Download PDF

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Publication number
WO2018188162A1
WO2018188162A1 PCT/CN2017/085080 CN2017085080W WO2018188162A1 WO 2018188162 A1 WO2018188162 A1 WO 2018188162A1 CN 2017085080 W CN2017085080 W CN 2017085080W WO 2018188162 A1 WO2018188162 A1 WO 2018188162A1
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WO
WIPO (PCT)
Prior art keywords
organic light
layer
light emitting
substrate
display panel
Prior art date
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PCT/CN2017/085080
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English (en)
French (fr)
Inventor
韩佰祥
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US15/533,646 priority Critical patent/US10304994B2/en
Publication of WO2018188162A1 publication Critical patent/WO2018188162A1/zh

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Classifications

    • 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
    • H10K59/80Constructional details
    • H10K59/805Electrodes
    • H10K59/8052Cathodes
    • H10K59/80521Cathodes characterised by their shape
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • 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
    • H10K59/122Pixel-defining structures or layers, e.g. banks

Definitions

  • the present invention relates to the field of display manufacturing, and in particular to an organic light emitting display panel.
  • OLED Organic Light Emitting Diode
  • the light-emitting layer when the manufacturing process of the light-emitting layer is full-surface vapor deposition, the light-emitting layer may have lateral conduction due to factors such as balancing the life of the material, and the light leakage is reflected on the panel, thereby reducing the display quality of the panel.
  • the technical problem to be solved by the present invention is to provide an organic light emitting display panel, which can reduce light leakage caused by lateral conduction of the organic light emitting layer, thereby improving the display quality of the panel.
  • the organic light emitting display panel includes: a substrate; a plurality of anode electrodes are formed on the substrate in an array manner; a pixel defining layer is formed on the substrate, and at least partially exposes the anode electrode, thereby defining respectively corresponding to each anode An effective light-emitting region of the electrode and an ineffective light-emitting region around the effective light-emitting region; a barrier pattern formed on the pixel defining layer and at least partially surrounding the effective light-emitting region, wherein the cut-off pattern has an inverted trapezoid along a cross section perpendicular to the substrate The length of the upper base of the inverted trapezoid away from the substrate is greater than the length of the lower base adjacent to the substrate, and the angle between the lower base and the waist of the inverted trapezoid is an obtuse angle; the organic light emitting layer is formed on the an anobtuse angle;
  • the organic light emitting display panel includes: a substrate; a plurality of anode electrodes are formed on the substrate in an array manner; a pixel defining layer is formed on the substrate, and at least partially exposes the anode electrode, thereby defining respectively corresponding to each anode An effective light-emitting area of the electrode and an ineffective light-emitting area around the effective light-emitting area; a partition pattern formed on the pixel defining layer and at least partially surrounding the effective light-emitting area; the organic light-emitting layer formed on the anode electrode, the partition pattern, and the pixel defining layer And a cathode layer formed on the organic light-emitting layer, wherein the barrier pattern partitions the organic light-emitting layer and the cathode layer in the effective light-emitting region from the organic light-emitting layer and the cathode layer in the ineffective light-e
  • the display device includes: a substrate; a plurality of anode electrodes are formed on the substrate in an array manner; a pixel defining layer is formed on the substrate, and at least partially exposes the anode electrode, thereby defining respectively corresponding to each anode electrode An effective light-emitting region and an ineffective light-emitting region around the effective light-emitting region; a partition pattern formed on the pixel defining layer and at least partially surrounding the effective light-emitting region; the organic light-emitting layer being formed on the anode electrode, the partition pattern, and the pixel defining layer; The cathode layer is formed on the organic light-emitting layer, wherein the barrier pattern blocks the organic light-emitting layer and the cathode layer in the effective light-emitting region from the organic light-emitting layer and the cathode layer in the ineffective light-emitting region; and the driving circuit is
  • the organic light emitting display panel of the present invention comprises: a substrate, a plurality of anode electrodes, a pixel defining layer, a partitioning pattern, an organic light emitting layer and a cathode layer, wherein the partition pattern is effective
  • the organic light-emitting layer and the cathode layer in the light-emitting region are separated from the organic light-emitting layer and the cathode layer in the non-effective light-emitting region, thereby suppressing the lateral conduction path of the organic light-emitting layer, thereby improving the display quality of the panel.
  • FIG. 1 is a schematic structural view of a first embodiment of an organic light emitting display panel of the present invention
  • FIG. 2 is a schematic structural view of a second embodiment of an organic light emitting display panel of the present invention.
  • FIG. 3 is a schematic structural view of a third embodiment of an organic light emitting display panel of the present invention.
  • FIG. 4 is a schematic structural view of a fourth embodiment of an organic light emitting display panel of the present invention.
  • FIG. 5 is a schematic structural view of a fifth embodiment of an organic light emitting display panel of the present invention.
  • FIG. 6 is a schematic structural view of a sixth embodiment of an organic light emitting display panel of the present invention.
  • FIG. 7 is a schematic structural view of a seventh embodiment of an organic light emitting display panel of the present invention.
  • FIG. 8 is a schematic structural view of an eighth embodiment of an organic light emitting display panel of the present invention.
  • FIG. 9 is a schematic structural view of a ninth embodiment of an organic light emitting display panel of the present invention.
  • FIG. 10 is a schematic structural view of a tenth embodiment of an organic light emitting display panel of the present invention.
  • Figure 11 is a schematic view showing the structure of an eleventh embodiment of the organic light-emitting display panel of the present invention.
  • FIG. 1 is a schematic structural view of a first embodiment of an organic light emitting display panel of the present invention.
  • the organic light-emitting display panel 10 of the present embodiment includes a substrate 11, an anode electrode 12, a pixel defining layer 13, a barrier pattern 14, an organic light-emitting layer 15, and a cathode layer 16.
  • the organic light-emitting display panel 10 is divided into an effective light-emitting area I and an ineffective light-emitting area II, the effective light-emitting area I corresponds to the anode electrode 12, and the non-effective light-emitting area II is located around the effective light-emitting area.
  • a plurality of anode electrodes 12 are formed on the substrate 11 in an array manner; the pixel defining layer 13 is formed on the substrate 11 and at least partially exposes the anode electrode 12, thereby defining respectively corresponding to each anode electrode 12.
  • the anode electrode 12 is made of a transparent or translucent conductor.
  • the specific material may be ITO conductive glass, and the main component of the ITO film layer is indium tin oxide. In the case of a thickness of only a few thousand angstroms, the indium oxide transmittance is high, and the tin oxide is highly conductive.
  • the partition pattern 14 is disposed in an inverted trapezoidal shape along a cross section perpendicular to the substrate 11, as shown in FIG. 2, the length of the inverted trapezoidal upper substrate away from the substrate is greater than the length of the lower base adjacent to the substrate, and the lower bottom and the inverted trapezoid
  • the angle between the waists is an obtuse angle, that is, ⁇ is an obtuse angle.
  • the range of ⁇ is not less than 120 degrees and not more than 150 degrees. Further, ⁇ is 135 degrees.
  • the barrier pattern 14 is disposed such that the organic light-emitting layer 15 and the cathode layer 16 in the effective light-emitting region I and the organic light-emitting layer 15 and the cathode layer 16 on the barrier pattern are separated from each other, and the organic light-emitting layer 15 on the pattern 14 is blocked.
  • the cathode layer 16 and the organic light-emitting layer 15 and the cathode layer 16 in the non-effective light-emitting region II are separated from each other.
  • the function of the partition pattern 14 is to form the entire surface of the organic light-emitting layer 15 and the cathode layer 16 on the substrate 11, the organic light-emitting layer 15 and the cathode layer 16 of the effective light-emitting region I and the ineffective light-emitting region II can be blocked. Therefore, the cross section of the partition pattern 14 perpendicular to the substrate 11 may also be other patterns such as a hexagon, an octagon, an elliptical racetrack shape or the like.
  • the cross-sectional plane of the partition pattern 14 is perpendicular to the substrate 11 in a hexagonal shape, and the hexagon may be a regular hexagon, that is, the inner angle of the hexagon is 120 degrees.
  • the cross-section of the partition pattern 14 along the substrate 11 is octagonal, and the octagon may be a regular octagon, that is, the inner angle of the octagon is 135 degrees.
  • the cross-section of the partition pattern 14 perpendicular to the substrate 11 has an elliptical race shape, and one straight side of the elliptical racetrack shape is disposed on the substrate, and the length thereof can be set by a user.
  • the curvature and length of the two arcs of the elliptical racetrack shape are also configurable by the user.
  • FIG. 6 is a schematic structural view of a sixth embodiment of the organic light emitting display panel of the present invention.
  • the pixel defining layer 13 covers the edge of the anode electrode 12, and the blocking pattern 14 is at least partially formed on the covering area of the pixel defining layer 13 to the anode electrode 12.
  • the organic light-emitting display panel in which the organic light-emitting layer is in the form of a continuous plating can suppress light leakage by the structure in the present embodiment.
  • the full color painting mode of the organic light emitting layer may be white light + RGB color film, or blue light + RGB color film.
  • the partition pattern 14 partially surrounds the effective light-emitting region I and is provided with an open region.
  • the organic light-emitting layer 15 and the cathode layer 16 in the effective light-emitting region I pass through the organic light-emitting layer 15 and the cathode layer 16 in the open region and the non-effective light-emitting region II. Make an electrical connection.
  • the effective light-emitting area 1 is disposed in a rectangular shape, and the partition pattern 14 surrounds three of the four sides of the effective light-emitting area 1, and the open area is disposed corresponding to the remaining one side of the effective light-emitting area 1.
  • FIG. 7 is a schematic structural view of a seventh embodiment of an organic light emitting display panel according to the present invention.
  • 7 corresponds to the anode electrode light-transmitting region of FIG. 6, and FIG. 7 also corresponds to the pixel structure diagram of FIG. 1, wherein the region 71 represents the region covered by the partition pattern 14 in FIG. 1, and the region 72 represents FIG.
  • the column line 74 is the source-level data line, and the horizontal line 75 is the gate-scan line.
  • the open area disposed directly above the region 72 is the lead-in area of the cathode electrode.
  • the area below the area 73 corresponds to the gate and source-level wiring areas, and even light leakage can be blocked.
  • FIG. 8 is a schematic structural diagram of an eighth embodiment of an organic light emitting display panel according to the present invention.
  • 8 corresponds to the anode electrode light transmissive area of FIG. 6, and FIG. 8 also corresponds to the pixel structure diagram of FIG. 1, wherein the area 81 represents the area covered by the partition pattern 14 in FIG. 1, and the area 82 represents the area in FIG.
  • the open area disposed at the upper right of the area 82 is the lead-in area of the cathode electrode, and the size of the open area provided for the upper right side of the area 82 can be set by the user.
  • FIG. 9 is a schematic structural view of a ninth embodiment of the organic light emitting display panel of the present invention.
  • 9 corresponds to the anode electrode light transmissive area of FIG. 6, and FIG. 9 also corresponds to the pixel structure diagram of FIG. 1, wherein the area 91 represents the area covered by the partition pattern 14 in FIG. 1, and the area 92 represents the area in FIG.
  • the effective light-emitting area I, the area 93, represents the non-effective light-emitting area II in FIG.
  • the opening area provided at the upper left of the area 92 is the lead-in area of the cathode electrode, and the size of the opening area provided for the upper right side of the area 92 can be set by the user.
  • FIG. 10 is a schematic structural view of a tenth embodiment of the organic light emitting display panel of the present invention.
  • 10 corresponds to the anode electrode light transmissive area of FIG. 6, and FIG. 10 also corresponds to the pixel structure diagram of FIG. 1, wherein the area 101 represents the area covered by the partition pattern 14 in FIG. 1, and the area 102 represents the area in FIG.
  • the opening area provided in the middle of the area 102 is the lead-in area of the cathode electrode, and the size of the opening area provided for the upper right side of the area 102 can be set by the user.
  • the pixel defining layer 13 is an inorganic material
  • the blocking pattern 14 is an organic material.
  • the organic light emitting display panel includes: a substrate, a plurality of anode electrodes, a pixel defining layer, a partitioning pattern, an organic light emitting layer, and a cathode layer, wherein the partition pattern has an organic light emitting layer and a cathode layer in the effective light emitting region and is ineffective
  • the organic light-emitting layer and the cathode layer in the light-emitting region are partitioned, and the path of lateral conduction of the organic light-emitting layer can be suppressed, thereby improving the display quality of the panel.
  • FIG. 11 is a schematic structural view of an eleventh embodiment of the organic light emitting display panel of the present invention.
  • the organic light-emitting display panel 110 includes a substrate 111, a gate electrode 112, a gate protection layer 113, a source/drain level 114, a channel layer 115, an inorganic material protection layer 116, an organic material protection layer 117, and an anode electrode layer 118.
  • the blocking pattern 122 is formed on the driving circuit.
  • gate scan line 112 and the source level data line 114 are at least partially overlapped with the organic light emitting layer 120 and the cathode electrode layer 121 in the inactive light emitting region.
  • the channel layer 115 is made of indium gallium zinc oxide (Indium Gallium Zinc). Qxide, IGZO).
  • the material of the anode electrode layer 118 is ITO conductive glass.
  • the pixel defining layer 119 is an inorganic material
  • the blocking pattern 122 is an organic material.
  • the material of the inorganic material protective layer 116 and the pixel defining layer 119 may be silicon oxide.
  • the organic light emitting display panel includes: a substrate, a plurality of anode electrodes, a pixel defining layer, a partitioning pattern, an organic light emitting layer, and a cathode layer, wherein the partition pattern has an organic light emitting layer and a cathode layer in the effective light emitting region and is ineffective
  • the organic light-emitting layer and the cathode layer in the light-emitting region are partitioned, and the path of lateral conduction of the organic light-emitting layer can be suppressed, thereby improving the display quality of the panel.
  • the embodiment of the present invention further provides a display device, including the organic light-emitting display panel in the above embodiment, which improves the display quality of the panel by improving the display quality of the panel due to the lateral conduction path of the organic light-emitting layer is suppressed, thereby improving the display device. performance.
  • the structure of the organic light emitting display panel is the same as the above embodiment, and details are not described herein again.
  • the structure of other parts of the display device can refer to the prior art, and will not be described in detail herein.
  • the display device can be a product or component having any display function such as a smart phone, a tablet computer, or a television.
  • the organic light emitting display panel includes: a substrate, a plurality of anode electrodes, a pixel defining layer, a partitioning pattern, an organic light emitting layer, and a cathode layer, wherein the partition pattern has an organic light emitting layer and a cathode layer in the effective light emitting region and is ineffective
  • the organic light-emitting layer and the cathode layer in the light-emitting region are partitioned, and the path of lateral conduction of the organic light-emitting layer can be suppressed, thereby improving the display quality of the panel.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

公开了一种有机发光显示面板,包括:基板(11);多个阳极电极(12)以阵列方式形成于基板上;像素定义层(13)形成于基板上且至少部分外露阳极电极,进而定义出分别对应于每一阳极电极的有效发光区(I)以及位于有效发光区周围的非有效发光区(II);隔断图案(14)形成于像素定义层上且至少部分包围有效发光区,其中隔断图案沿垂直于基板的横截面呈倒梯形设置,倒梯形的远离基板的上底的长度大于靠近基板的下底的长度,且下底与倒梯形的腰之间的夹角为钝角;有机发光层(15)形成于阳极电极、隔断图案以及像素定义层上;阴极层(16)形成于有机发光层上,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断;其中有机发光层和阴极层整面形成于基板上。通过上述方式,能够减少有机发光层横向导通引起的漏光,进而提升面板的显示品质。

Description

一种有机发光显示面板
【技术领域】
本发明涉及显示器制作领域,特别是涉及一种有机发光显示面板。
【背景技术】
有机发光二极管(Organic Light Emitting Diode,OLED),因其具有自发光、快速响应、宽视角等特点,以OLED为基础的有机发光显示器成为显示领域的主流产品。
其中,当发光层的制作工艺为整面蒸镀时,由于需要平衡材料寿命等因素,发光层会有横向导通的可能,反映到面板上就表现为漏光,进而会降低面板的显示品质。
【发明内容】
本发明主要解决的技术问题是提供一种有机发光显示面板,能够减少有机发光层横向导通引起的漏光,进而提升了面板的显示品质。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种有机发光显示面板。其中,所述有机发光显示面板包括:基板;多个阳极电极,以阵列方式形成于基板上;像素定义层,形成于基板上,且至少部分外露阳极电极,进而定义出分别对应于每一阳极电极的有效发光区以及位于有效发光区周围的非有效发光区;隔断图案,形成于像素定义层上,且至少部分包围有效发光区,其中,隔断图案的沿垂直于基板的横截面呈倒梯形设置,倒梯形的远离基板的上底的长度大于靠近基板的下底的长度,且下底与倒梯形的腰之间的夹角为钝角;有机发光层,形成于阳极电极、隔断图案以及像素定义层上;阴极层,形成于有机发光层上,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断;其中,有机发光层和阴极层整面形成于基板上。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种有机发光显示面板。其中,所述有机发光显示面板包括:基板;多个阳极电极,以阵列方式形成于基板上;像素定义层,形成于基板上,且至少部分外露阳极电极,进而定义出分别对应于每一阳极电极的有效发光区以及位于有效发光区周围的非有效发光区;隔断图案,形成于像素定义层上,且至少部分包围有效发光区;有机发光层,形成于阳极电极、隔断图案以及像素定义层上;阴极层,形成于有机发光层上,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种显示设备。其中,所述显示设备包括:基板;多个阳极电极,以阵列方式形成于基板上;像素定义层,形成于基板上,且至少部分外露阳极电极,进而定义出分别对应于每一阳极电极的有效发光区以及位于有效发光区周围的非有效发光区;隔断图案,形成于像素定义层上,且至少部分包围有效发光区;有机发光层,形成于阳极电极、隔断图案以及像素定义层上;阴极层,形成于有机发光层上,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断;驱动电路,形成于基板上。
本发明的有益效果是:区别于现有技术的情况,本发明的有机发光显示面板包括:基板、多个阳极电极、像素定义层、隔断图案、有机发光层以及阴极层,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断,可以抑制有机发光层横向导通的路径,进而提升了面板的显示品质。
【附图说明】
图1是本发明有机发光显示面板第一实施方式的结构示意图;
图2是本发明有机发光显示面板第二实施方式的结构示意图;
图3是本发明有机发光显示面板第三实施方式的结构示意图;
图4是本发明有机发光显示面板第四实施方式的结构示意图;
图5是本发明有机发光显示面板第五实施方式的结构示意图;
图6是本发明有机发光显示面板第六实施方式的结构示意图;
图7是本发明有机发光显示面板第七实施方式的结构示意图;
图8是本发明有机发光显示面板第八实施方式的结构示意图;
图9是本发明有机发光显示面板第九实施方式的结构示意图;
图10是本发明有机发光显示面板第十实施方式的结构示意图;
图11是本发明有机发光显示面板第十一实施方式的结构示意图。
【具体实施方式】
下面结合附图和实施方式对本发明进行详细说明。
请参阅图1,图1是本发明有机发光显示面板第一实施方式的结构示意图。如图1所示,本实施方式的有机发光显示面板10包括:基板11、阳极电极12、像素定义层13、隔断图案14、有机发光层15以及阴极层16。其中,有机发光显示面板10分为有效发光区Ⅰ和非有效发光区Ⅱ,有效发光区Ⅰ对应于阳极电极12,非有效发光区Ⅱ位于有效发光区的周围。具体地,阳极电极12有多个,均以阵列方式形成于基板11上;像素定义层13形成于基板11上,且至少部分外露阳极电极12,进而定义出分别对应于每一阳极电极12的有效发光区Ⅰ以及位于有效发光区周围的非有效发光区Ⅱ;隔断图案14形成于像素定义层13上,且至少部分包围有效发光区Ⅰ;有机发光层15形成于阳极电极12、隔断图案14以及像素定义层12上;阴极层16形成于有机发光层15上,其中隔断图案14将有效发光区Ⅰ内的有机发光层15和阴极层11与非有效发光区Ⅱ内的有机发光层13和阴极层16进行隔断。
可选地,阳极电极12为透明或半透明的导体制成的。具体材质可以为ITO导电玻璃,ITO膜层的主要成份是氧化铟锡。在厚度只有几千埃的情况下,氧化铟透过率高,氧化锡导电能力强。
其中,隔断图案14的沿垂直于基板11的横截面呈倒梯形设置,如图2所示,倒梯形的远离基板的上底的长度大于靠近基板的下底的长度,且下底与倒梯形的腰之间的夹角为钝角,也即是θ为钝角。
具体地,θ的范围为不小于120度,且不大于150度。进一步地,θ为135度。
进一步地,隔断图案14设置成使得有效发光区Ⅰ内的有机发光层15和阴极层16与隔断图案上的有机发光层15和阴极层16彼此隔断,且隔断图案14上的有机发光层15和阴极层16与非有效发光区Ⅱ内的有机发光层15和阴极层16彼此隔断。
具体地,由于隔断图案14的作用就是在有机发光层15和阴极层16整面形成于基板11上时,可以隔断有效发光区Ⅰ和非有效发光区Ⅱ的有机发光层15和阴极层16。因此,隔断图案14的沿垂直于基板11的横截面也可以是其他图形,例如六边形、八边形、椭圆跑道形等。
具体地,如图3所示,隔断图案14的沿垂直于基板11的横截面呈六边形,该六边形可以是正六边形,也即是,六边形的内角均为120度。
具体地,如图4所示,隔断图案14的沿垂直于基板11的横截面呈八边形,该八边形可以是正八边形,也即是,八边形的内角均为135度。
具体地,如图5所示,隔断图案14的沿垂直于基板11的横截面呈椭圆跑道形,该椭圆跑道形的其中一条直边设置于基板上,其长度可以由用户设置。而且,该椭圆跑道形的两条弧形的弧度及长度也是可由用户设置。
进一步地,本实施方式中的有机发光层15和阴极层16整面形成于基板11上。如图6所示,图6是本发明有机发光显示面板第六实施方式的结构示意图。其中,像素定义层13覆盖阳极电极12的边缘,隔断图案14至少部分形成于像素定义层13对阳极电极12的覆盖区域上。具体地,有机发光层形态为连续镀膜的有机发光显示面板均可以利用本实施方式中的结构抑制漏光。具体地,有机发光层全彩画方式可以是白光+RGB彩膜,或者蓝光+RGB彩膜。
其中,隔断图案14部分包围有效发光区Ⅰ且设置有一开口区,有效发光区Ⅰ内的有机发光层15和阴极层16经开口区与非有效发光区Ⅱ内的有机发光层15和阴极层16进行电连接。
进一步地,有效发光区域1呈矩形设置,隔断图案14包围有效发光区1的四条边中的三条边,开口区对应于有效发光区1的剩余的一条边设置。
具体地,如图7所示,图7为本发明有机发光显示面板第七实施方式的结构示意图。图7与图6的阳极电极透光区相对应,图7还与图1的像素结构示意图相对应,其中,区域71表示图1中的隔断图案14所覆盖的区域,区域72表示图1中有效发光区Ⅰ,区域73表示图1中的非有效发光区Ⅱ,列线74为源级数据线,横线75为栅极扫描线。其中,区域72的正上方所设置的开口区为阴极电极的引入区。另外,区域73下方对应着栅极和源级布线区,即使漏光也可以被遮挡。
可选地,如图8所示,图8为本发明有机发光显示面板第八实施方式的结构示意图。图8与图6的阳极电极透光区相对应,图8还与图1的像素结构示意图相对应,其中,区域81表示图1中的隔断图案14所覆盖的区域,区域82表示图1中有效发光区Ⅰ,区域83表示图1中的非有效发光区Ⅱ。其中,区域82的右上方所设置的开口区为阴极电极的引入区,对于区域82右上方所设置的开口区的尺寸大小可由用户设置。
可选地,如图9所示,图9是本发明有机发光显示面板第九实施方式的结构示意图。图9与图6的阳极电极透光区相对应,图9还与图1的像素结构示意图相对应,其中,区域91表示图1中的隔断图案14所覆盖的区域,区域92表示图1中有效发光区Ⅰ,区域93表示图1中的非有效发光区Ⅱ。其中,区域92的左上方所设置的开口区为阴极电极的引入区,对于区域92右上方所设置的开口区的尺寸大小可由用户设置。
可选地,如图10所示,图10是本发明有机发光显示面板第十实施方式的结构示意图。图10与图6的阳极电极透光区相对应,图10还与图1的像素结构示意图相对应,其中,区域101表示图1中的隔断图案14所覆盖的区域,区域102表示图1中有效发光区Ⅰ,区域103表示图1中的非有效发光区Ⅱ。其中,区域102的正中间所设置的开口区为阴极电极的引入区,对于区域102右上方所设置的开口区的尺寸大小可由用户设置。
具体地,像素定义层13为无机材料,隔断图案14为有机材料。
本实施方式中,有机发光显示面板包括:基板、多个阳极电极、像素定义层、隔断图案、有机发光层以及阴极层,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断,可以抑制有机发光层横向导通的路径,进而提升了面板的显示品质。
请参阅图11,图11是本发明有机发光显示面板第十一实施方式的结构示意图。有机发光显示面板110包括:基片111、栅极112、栅极保护层113、源级/漏级114、沟道层115、无机材质保护层116、有机材料保护层117、阳极电极层118、像素定义层119、有机发光层120、阴极电极层121、隔断图案122。
其中,隔断图案122形成于驱动电路之上。
进一步地,栅极扫描线112与源级数据线114至少部分与非有效发光区内的有机发光层120和阴极电极层121重叠设置。
具体地,沟道层115的材质为铟镓锌氧化物(Indium Gallium Zinc Qxide,IGZO)。
具体地,阳极电极层118的材质为ITO导电玻璃。
具体地,像素定义层119为无机材料,隔断图案122为有机材料。
可选地,无机材质保护层116和像素定义层119的材质可以为氧化硅。
本实施方式中,有机发光显示面板包括:基板、多个阳极电极、像素定义层、隔断图案、有机发光层以及阴极层,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断,可以抑制有机发光层横向导通的路径,进而提升了面板的显示品质。
本发明实施方式中还提供了一种显示设备,包括上面实施方式中的有机发光显示面板,由于抑制了有机发光层横向导通的路径,进而提升了面板的显示品质,从而提高了显示设备的性能。
其中,有机发光显示面板的结构同上述实施方式,在此不再赘述。另外,显示装置其他部分的结构可以参考现有技术,对此本文不再详细描述。而显示装置可以为:智能手机、平板电脑、电视等具有任何显示功能的产品或部件。
本实施方式中,有机发光显示面板包括:基板、多个阳极电极、像素定义层、隔断图案、有机发光层以及阴极层,其中隔断图案将有效发光区内的有机发光层和阴极层与非有效发光区内的有机发光层和阴极层进行隔断,可以抑制有机发光层横向导通的路径,进而提升了面板的显示品质。
以上所述仅为本发明的实施方式,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种有机发光显示面板,其中,包括:
    基板;
    多个阳极电极,以阵列方式形成于所述基板上;
    像素定义层,形成于所述基板上,且至少部分外露所述阳极电极,进而定义出分别对应于每一所述阳极电极的有效发光区以及位于所述有效发光区周围的非有效发光区;
    隔断图案,形成于所述像素定义层上,且至少部分包围所述有效发光区,其中,所述隔断图案的沿垂直于所述基板的横截面呈倒梯形设置,所述倒梯形的远离所述基板的上底的长度大于靠近所述基板的下底的长度,且所述下底与所述倒梯形的腰之间的夹角为钝角;
    有机发光层,形成于所述阳极电极、所述隔断图案以及所述像素定义层上;
    阴极层,形成于所述有机发光层上,其中所述隔断图案将所述有效发光区内的所述有机发光层和所述阴极层与所述非有效发光区内的所述有机发光层和所述阴极层进行隔断;其中,所述有机发光层和所述阴极层整面形成于所述基板上。
  2. 根据权利要求1所述的有机发光显示面板,其中,所述夹角不小于120度,且不大于150度。
  3. 根据权利要求1所述的有机发光显示面板,其中,所述隔断图案设置成使得所述有效发光区内的所述有机发光层和所述阴极层与所述隔断图案上的所述有机发光层和所述阴极层彼此隔断,且所述隔断图案上的所述有机发光层和所述阴极层与所述非有效发光区内的所述有机发光层和所述阴极层彼此隔断。
  4. 根据权利要求1所述的有机发光显示面板,其中,所述像素定义层覆盖所述阳极电极的边缘,所述隔断图案至少部分形成于所述像素定义层对所述阳极电极的覆盖区域上。
  5. 根据权利要求1所述的有机发光显示面板,其中,所述隔断图案部分包围所述有效发光区且设置有一开口区,所述有效发光区内的所述有机发光层和所述阴极层经所述开口区与所述非有效发光区内的所述有机发光层和所述阴极层进行电连接。
  6. 根据权利要求5所述的有机发光显示面板,其中,所述有效发光区域呈矩形设置,所述隔断图案包围所述有效发光区的四条边中的三条边,所述开口区对应于所述有效发光区的剩余的一条边设置。
  7. 根据权利要求1所述的有机发光显示面板,其中,所述有机发光显示面板进一步包括形成于所述基板上的驱动电路,所述隔断图案进一步形成于所述驱动电路上。
  8. 根据权利要求1所述的有机发光显示面板,其中,所述有机发光显示面板进一步包括形成于所述基板上的扫描线和数据线,所述非有效发光区内的所述有机发光层和所述阴极层与所述扫描线或所述数据线至少部分重叠设置。
  9. 一种有机发光显示面板,其中,包括:
    基板;
    多个阳极电极,以阵列方式形成于所述基板上;
    像素定义层,形成于所述基板上,且至少部分外露所述阳极电极,进而定义出分别对应于每一所述阳极电极的有效发光区以及位于所述有效发光区周围的非有效发光区;
    隔断图案,形成于所述像素定义层上,且至少部分包围所述有效发光区;
    有机发光层,形成于所述阳极电极、所述隔断图案以及所述像素定义层上;
    阴极层,形成于所述有机发光层上,其中所述隔断图案将所述有效发光区内的所述有机发光层和所述阴极层与所述非有效发光区内的所述有机发光层和所述阴极层进行隔断。
  10. 根据权利要求9所述的有机发光显示面板,其中,所述隔断图案的沿垂直于所述基板的横截面呈倒梯形设置,所述倒梯形的远离所述基板的上底的长度大于靠近所述基板的下底的长度,且所述下底与所述倒梯形的腰之间的夹角为钝角。
  11. 根据权利要求9所述的有机发光显示面板,其特征在于,所述夹角不小于120度,且不大于150度。
  12. 根据权利要求9所述的有机发光显示面板,其中,所述有机发光层和所述阴极层整面形成于所述基板上。
  13. 根据权利要求9所述的有机发光显示面板,其中,所述隔断图案设置成使得所述有效发光区内的所述有机发光层和所述阴极层与所述隔断图案上的所述有机发光层和所述阴极层彼此隔断,且所述隔断图案上的所述有机发光层和所述阴极层与所述非有效发光区内的所述有机发光层和所述阴极层彼此隔断。
  14. 根据权利要求9所述的有机发光显示面板,其中,所述像素定义层覆盖所述阳极电极的边缘,所述隔断图案至少部分形成于所述像素定义层对所述阳极电极的覆盖区域上。
  15. 根据权利要求9所述的有机发光显示面板,其中,所述隔断图案部分包围所述有效发光区且设置有一开口区,所述有效发光区内的所述有机发光层和所述阴极层经所述开口区与所述非有效发光区内的所述有机发光层和所述阴极层进行电连接。
  16. 根据权利要求15所述的有机发光显示面板,其中,所述有效发光区域呈矩形设置,所述隔断图案包围所述有效发光区的四条边中的三条边,所述开口区对应于所述有效发光区的剩余的一条边设置。
  17. 根据权利要求9所述的有机发光显示面板,其中,所述有机发光显示面板进一步包括形成于所述基板上的驱动电路,所述隔断图案进一步形成于所述驱动电路上。
  18. 根据权利要求9所述的有机发光显示面板,其中,所述有机发光显示面板进一步包括形成于所述基板上的扫描线和数据线,所述非有效发光区内的所述有机发光层和所述阴极层与所述扫描线或所述数据线至少部分重叠设置。
  19. 根据权利要求9所述的有机发光显示面板,其中,所述像素定义层为无机材料,所述隔断图案为有机材料。
  20. 一种显示设备,其中,包括:
    基板;
    多个阳极电极,以阵列方式形成于所述基板上;
    像素定义层,形成于所述基板上,且至少部分外露所述阳极电极,进而定义出分别对应于每一所述阳极电极的有效发光区以及位于所述有效发光区周围的非有效发光区;
    隔断图案,形成于所述像素定义层上,且至少部分包围所述有效发光区;
    有机发光层,形成于所述阳极电极、所述隔断图案以及所述像素定义层上;
    阴极层,形成于所述有机发光层上,其中所述隔断图案将所述有效发光区内的所述有机发光层和所述阴极层与所述非有效发光区内的所述有机发光层和所述阴极层进行隔断;
    驱动电路,形成于所述基板上。
PCT/CN2017/085080 2017-04-10 2017-05-19 一种有机发光显示面板 WO2018188162A1 (zh)

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