WO2020220511A1 - 有机发光显示面板 - Google Patents

有机发光显示面板 Download PDF

Info

Publication number
WO2020220511A1
WO2020220511A1 PCT/CN2019/100320 CN2019100320W WO2020220511A1 WO 2020220511 A1 WO2020220511 A1 WO 2020220511A1 CN 2019100320 W CN2019100320 W CN 2019100320W WO 2020220511 A1 WO2020220511 A1 WO 2020220511A1
Authority
WO
WIPO (PCT)
Prior art keywords
cathode
display panel
organic light
emitting display
contact hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/100320
Other languages
English (en)
French (fr)
Inventor
肖翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US16/498,026 priority Critical patent/US20210367185A1/en
Publication of WO2020220511A1 publication Critical patent/WO2020220511A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H10K59/10—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
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance
    • 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
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/824—Cathodes combined with auxiliary electrodes
    • 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
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
    • 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
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • 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
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80522—Cathodes combined with auxiliary electrodes
    • 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
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80524—Transparent cathodes, e.g. comprising thin metal layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3026—Top emission

Definitions

  • the present invention relates to the field of display technology, and in particular to an organic light emitting display panel.
  • the cathode In self-luminous display panels, especially the top-emitting device structure, the cathode usually uses an extremely thin metal layer to obtain higher transmittance, but the extremely thin metal has a large impedance, which causes a voltage drop (IR Drop), resulting in uneven light emission of the panel. Usually, an auxiliary cathode trace is added in the pixel to reduce the voltage drop (IR Drop).
  • the contact hole of each pixel is the same, but the same contact hole design can only reduce the pressure drop (IR Drop), and the degree of pressure drop (IR Drop) in different positions of the panel is different, there is still the problem of display unevenness. Therefore, there is an urgent need to provide one to solve the above-mentioned problems.
  • the object of the present invention is to provide an organic light emitting display panel having a display area and a peripheral area.
  • the organic light emitting display panel includes a cathode, an auxiliary cathode, and electrical connection between the cathode and the auxiliary cathode
  • Each of the sub-pixel regions corresponds to at least one contact hole. The farther the contact hole is from the peripheral region of the cathode, the larger the size of the contact hole.
  • the cathode voltage can be reduced more, and the actual cathode voltage is closer to the input cathode voltage, so that the The resistance is the same within the allowable error range, so that the voltage drop of the cathode at different positions (IR Drop) The same within the allowable error range to improve the uniformity of display brightness.
  • the present invention provides an organic light emitting display panel having a display area and a peripheral area.
  • the organic light emitting display panel includes: a substrate; at least one sub-pixel area, the sub-pixel area being disposed in The display area; a cathode, the input end of the cathode extends to the peripheral area; an auxiliary cathode, the auxiliary cathode includes at least one first metal wiring extending along a first direction, and at least one A second metal trace extending along a second direction is provided, and the first metal trace is provided for every m rows of sub-pixel regions; the second metal trace is provided for every n columns of sub-pixel regions; m and n are both Positive integer; and, at least one contact hole, the cathode and the auxiliary cathode are electrically connected through the contact hole; and wherein each of the sub-pixel regions corresponds to at least one contact hole, and the contact hole distance The farther the input end of the cathode is, the larger the size of the contact hole
  • At least one contact hole is provided in one sub-pixel area.
  • center distance between every two adjacent contact holes corresponding to the same first metal trace is the same.
  • the contact hole is circular, oval or polygonal.
  • the material of the auxiliary cathode wiring is a metal conductive material.
  • the organic light emitting display panel further includes a top-gate OLED arranged in each sub-pixel area.
  • the cathode is a transparent electrode.
  • the present invention also provides an organic light emitting display panel having a display area and a peripheral area.
  • the organic light emitting display panel includes: a substrate; at least one sub-pixel area, the sub-pixel area being disposed in The display area; a cathode, the input end of the cathode extends to the peripheral area; an auxiliary cathode; at least one contact hole, the cathode and the auxiliary cathode are electrically connected through the contact hole; wherein each One said sub-pixel area corresponds to at least one said contact hole, and the farther the contact hole is from the input end of the cathode, the larger the size of the contact hole.
  • the auxiliary cathode includes at least one first metal wiring extending along a first direction.
  • auxiliary cathode further includes at least one second metal trace extending along a second direction.
  • the first metal wiring is provided for every m rows of sub-pixel areas; the second metal wiring is provided for every n columns of sub-pixel areas; m and n are both positive integers.
  • At least one contact hole is provided in one sub-pixel area.
  • center distance between every two adjacent contact holes corresponding to the same first metal trace is the same.
  • the contact hole is circular, oval or polygonal.
  • the material of the auxiliary cathode wiring is a metal conductive material.
  • the organic light emitting display panel further includes a top-gate OLED arranged in each sub-pixel area.
  • the cathode is a transparent electrode.
  • the advantage of the present invention is that contact holes of different sizes are designed for the sub-pixels in different positions of the display panel, and contact holes of larger size are used in the positions where the pressure drop (IR Drop) is severe, so that the pressure drop can be reduced more. (IR Drop) The slightly smaller contact holes are used to make the overall cathode voltage of the display panel more uniform, and finally a more uniform display screen is obtained.
  • FIG. 1 is a schematic diagram of the structure of an organic light emitting display panel in the prior art.
  • FIG. 2 is a schematic structural diagram of an organic light emitting display panel in an embodiment of the invention.
  • the present invention discloses an organic light-emitting display panel.
  • the organic light-emitting display panel has a display area 10 and a peripheral area 20.
  • the organic light-emitting display panel includes: a substrate 30; A number of OLED devices (not shown) in the display area 10; the OLED device includes a cathode 1, and the input end of the cathode 1 of the display area 10 extends to the peripheral area 20; an auxiliary cathode 2 , The auxiliary cathode 2 is disposed on the substrate 30; and at least one contact hole 3, the cathode 1 and the auxiliary cathode 2 are electrically connected through the contact hole 3.
  • the organic light-emitting display panel is particularly suitable for large-size top-emitting device structures.
  • the organic light-emitting display panel according to the embodiment of the present invention is a top-emitting device display panel, and the cathode 1 is a transparent electrode.
  • High light transmittance the cathode 1 of the organic light emitting display panel is set as an extremely thin metal layer, the impedance of the cathode 1 is relatively large, and because the input end of the cathode 1 extends to the peripheral area 20,
  • the display area 10 is rectangular, and the peripheral area 20 surrounds the display area 10. Therefore, the actual voltage of the cathode 1 in the middle of the display area 10 is higher than that of the peripheral area 20. The voltage.
  • the display area 10 further includes at least one sub-pixel area 4, and each sub-pixel area 4 is provided with an OLED device. Only the OLED is shown in FIG.
  • the cathode 1 in the device does not illustrate the specific structure of the OLED device.
  • All OLED devices in the sub-pixel area 4 also include an anode, a light-emitting layer, and the cathode 1. The anode and the light-emitting The layer is not shown.
  • the material of the cathode 1 may be transparent conductive materials such as indium tin oxide (ITO) and indium zinc oxide (IZO).
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • the auxiliary cathode 2 includes at least one first metal trace 21 extending along a first direction, and the first metal trace 21 is uniformly arranged; every m rows
  • the sub-pixel area 4 is provided with the first metal wiring 21, and m is a positive integer.
  • the auxiliary cathode wiring 2 includes at least one second metal wiring (not shown) extending in a second direction, and the second metal wiring is uniformly arranged; each n columns of sub-pixels One of the second metal traces is arranged in the region, and n is a positive integer.
  • the auxiliary cathode 2 includes at least one first metal trace arranged along a first direction and at least one second metal trace (not shown) arranged along a second direction.
  • the metal traces and the second metal traces are uniformly crossed, and the first metal traces and the second metal traces are directly connected.
  • the first metal wiring and the second metal wiring both extend from the display area 10 to the peripheral area 20.
  • the first metal wiring and the second metal wiring are controlled.
  • the line width of the second metal trace is within a reasonable range. The wider the line width of the first metal trace and the second metal trace, the lower the impedance on the auxiliary cathode 2 can be.
  • the cathode 1 and the auxiliary cathode 2 are arranged in different layers.
  • the auxiliary cathode 2 is disposed between the substrate 30 and the OLED device, and the formation of the OLED device is performed after the auxiliary cathode 2 is formed to ensure that the auxiliary cathode 2 will not affect the aperture ratio of the sub-pixel area 4 corresponding to the OLED device.
  • the organic light-emitting display panel further includes a thin film transistor (not shown) disposed on the substrate 30, and the thin film transistor is used to drive the OLED device to realize a display function. And improve the resolution.
  • the thin film transistor includes a gate, a source and a drain, the OLED device may be a top-gate OLED arranged in each of the sub-pixel regions 4, and the cathode 1 is a transparent electrode.
  • the auxiliary cathode 2 is disposed between the thin film transistor and the OLED device, that is, the auxiliary cathode 2 is formed after the thin film transistor, and then the anode of the OLED device is sequentially formed. , The light-emitting layer and the cathode 1.
  • the auxiliary cathode 2 may be provided in the same layer as the gate of the thin film transistor.
  • the auxiliary cathode 2 can be arranged in the same layer as the source and drain of the thin film transistor.
  • the auxiliary cathode 2 is a metal conductive material, and the auxiliary cathode 2 can be one or a combination of molybdenum, aluminum, chromium, gold, and silver, which is not limited herein.
  • the contact hole 3 is provided in the layer between the cathode 1 and the auxiliary cathode wiring 2, and each sub-pixel area 4 corresponds to at least one contact hole 3.
  • the contact holes 3 are uniformly arranged in the display area 10.
  • the organic light emitting display panel according to the embodiment of the present invention corresponds to the same first metal trace 21.
  • the center distance between every two adjacent contact holes 3 is the same, and the contact The farther the hole 3 is from the input end of the cathode 1, the larger the size of the contact hole 3 is. That is, in this embodiment, the input end of the cathode 1 of the display area 10 extends to the peripheral area 20, the display area 10 is rectangular, and the display area 10 corresponds to the display area
  • the size of the contact hole 3 in the middle position of 10 is larger, and the size of the contact hole 3 corresponding to the peripheral position of the display area 10 is smaller.
  • the contact hole 3 is a square hole with different side lengths. In other embodiments, the contact hole 3 may be a circular hole, an elliptical hole, a polygonal hole, and other forms.
  • the corresponding cathode 1 and the auxiliary cathode 2 are electrically connected through the contact hole 3, so that the cathode 1 and the auxiliary cathode 2 are connected in parallel, which is equivalent to that the cathode 1 is connected in parallel.
  • a resistor so that the resistance of the cathode 1 can be reduced.
  • the contact area between the cathode 1 and the auxiliary cathode 2 is increased, so that the contact resistance between the cathode 1 and the auxiliary cathode 2 is reduced, so that more Groundly reduce the voltage of the cathode 1 to make the actual voltage of the cathode 1 closer to the input voltage, so that the resistance across the cathode 1 can be more uniform, that is, the resistance of the cathode 1 at different positions can be
  • the allowable error range is the same, so that the voltage drop (IR Drop) of the cathode 1 in different positions can be the same within the allowable error range, so that the pressure drop (IR Drop) can be improved. Drop) to achieve the purpose of improving display uniformity.
  • the subject of this application can be manufactured and used in industry and has industrial applicability.

Landscapes

  • 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

本申请揭露了一种有机发光显示面板，具有一显示区和一周边区，所述有机发光显示面板包括：一衬底；设置于所述显示区的至少一子像素区及一阴极，所述阴极的输入端延伸至所述周边区；一辅助阴极；至少一接触孔，所述阴极与所述辅助阴极通过所述接触孔电连接；其中，每一所述子像素区对应至少一个所述接触孔，且所述接触孔距离所述阴极的输入端越远，所述接触孔的尺寸越大；每一个子像素区至少设置一个所述接触孔。

Description

有机发光显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种有机发光显示面板。
 背景技术
自发光显示面板中，尤其是顶发光器件结构，阴极通常采用极薄的金属层来获得较高的透过率，但极薄的金属自身阻抗较大，引起阴极电压的压降（IR Drop），导致面板发光不均匀，通常采取在像素内添加辅助阴极走线的方式来减弱压降（IR Drop）的影响。
 技术问题
如图1所示，每个像素的接触孔相同，但相同的接触孔设计只能同等程度地减弱压降（IR Drop），而面板不同位置压降（IR Drop）的程度不一样，仍存在显示不均匀性的问题。因此，亟需提供一种，以解决上述问题。
 技术解决方案
本发明的目的在于，提供一种有机发光显示面板，具有一显示区和一周边区，所述有机发光显示面板包括一阴极、一辅助阴极以及实现所述阴极与所述辅助阴极走线电连接的至少一接触孔，每一所述子像素区对应至少一个所述接触孔，所述接触孔距离所述阴极的周边区越远，所述接触孔的尺寸越大。通过设计更大的接触孔，减小所述辅助阴极与所述阴极的接触阻抗，能够更多的降低阴极电压，使实际阴极电压更接近输入阴极电压，从而可以使不同位置的所述阴极的电阻在误差允许的范围内相同，进而使不同位置的所述阴极的压降（IR Drop）在误差允许的范围内相同，提高显示亮度的均匀性。
为了实现上述目的，本发明提供了一种有机发光显示面板，具有一显示区和一周边区，所述有机发光显示面板包括：一衬底；至少一子像素区，所述子像素区设置于所述显示区内；一阴极，所述阴极的输入端延伸至所述周边区；一辅助阴极，所述辅助阴极包括至少一条沿一第一方向延伸设置的第一金属走线，以及至少一条沿一第二方向延伸设置的第二金属走线，每m行子像素区设置一所述第一金属走线；每n列子像素区设置一所述第二金属走线；m和n均为正整数；以及，至少一接触孔，所述阴极与所述辅助阴极通过所述接触孔电连接；并且其中，每一所述子像素区对应至少一个所述接触孔，且所述接触孔距离所述阴极的输入端越远，所述接触孔的尺寸越大。
进一步，在一个所述子像素区域至少设置一个所述接触孔。
进一步，对应同一条所述第一金属走线的每相邻两个所述接触孔之间的中心距离相同。
进一步，所述接触孔为圆形、椭圆型或多边形。
进一步，所述辅助阴极走线的材料为金属导电材料。
进一步，所述有机发光显示面板还包括设置于每个子像素区域的一顶栅型OLED。
进一步，所述阴极为透明电极。
为了实现上述目的，本发明还提供了一种有机发光显示面板，具有一显示区和一周边区，所述有机发光显示面板包括：衬底；至少一子像素区，所述子像素区设置于所述显示区内；一阴极，所述阴极的输入端延伸至所述周边区；一辅助阴极；至少一接触孔，所述阴极与所述辅助阴极通过所述接触孔电连接；其中，每一所述子像素区对应至少一个所述接触孔，且所述接触孔距离所述阴极的输入端越远，所述接触孔的尺寸越大。
进一步，所述辅助阴极包括至少一条沿一第一方向延伸设置的第一金属走线。
进一步，所述辅助阴极还包括至少一条沿一第二方向延伸设置的第二金属走线。
进一步，每m行子像素区设置一所述第一金属走线；每n列子像素区设置一所述第二金属走线；m和n均为正整数。
进一步，在一个子像素区域至少设置一个所述接触孔。
进一步，对应同一条所述第一金属走线的每相邻两个所述接触孔之间的中心距离相同。
进一步，所述接触孔为圆形、椭圆型或多边形。
进一步，所述辅助阴极走线的材料为金属导电材料。
进一步，所述有机发光显示面板还包括设置于每个子像素区域的一顶栅型OLED。
进一步，所述阴极为透明电极。
 有益效果
本发明的优点在于，针对显示面板不同位置的子像素设计不同尺寸的接触孔，在压降（IR Drop）严重的位置采用尺寸更大的接触孔从而能够更多地降低压降，在压降（IR Drop）轻微的位置采用尺寸更小的接触孔，使显示面板整体阴极电压更均匀，最终获得更均匀的显示画面。
 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是现有技术中有机发光显示面板的结构示意图。
图2是本发明一实施例中有机发光显示面板的结构示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书以及上述附图中的术语“第一”、“第二”、“第三”等（如果存在）是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应当理解，这样描述的对象在适当情况下可以互换。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
在本专利文档中，下文论述的附图以及用来描述本发明公开的原理的各实施例仅用于说明，而不应解释为限制本发明公开的范围。所属领域的技术人员将理解，本发明的原理可在任何适当布置的系统中实施。将详细说明示例性实施方式，在附图中示出了这些实施方式的实例。此外，将参考附图详细描述根据示例性实施例的终端。附图中的相同附图标号指代相同的元件。
本发明说明书中使用的术语仅用来描述特定实施方式，而并不意图显示本发明的概念。除非上下文中有明确不同的意义，否则，以单数形式使用的表达涵盖复数形式的表达。在本发明说明书中，应理解，诸如“包括”、“具有”以及“含有”等术语意图说明存在本发明说明书中揭示的特征、数字、步骤、动作或其组合的可能性，而并不意图排除可存在或可添加一个或多个其他特征、数字、步骤、动作或其组合的可能性。附图中的相同参考标号指代相同部分。
参见图2，本发明公开了一种有机发光显示面板，所述有机发光显示面板具有一显示区10和一周边区20，有机发光显示面板包括：一衬底30；设置于所述衬底30上的所述显示区10的若干OLED器件（未图示）；所述OLED器件包括阴极1，所述显示区10的所述阴极1的输入端延伸至所述周边区20；一辅助阴极2，所述辅助阴极2设置于所述衬底30上；以及至少一接触孔3，所述阴极1与所述辅助阴极2通过所述接触孔3电连接。
续见图2，所述有机发光显示面板尤其适用于大尺寸顶发光器件结构，本发明实施例所述的有机发光显示面板为顶发光器件显示面板，所述阴极1为透明电极，为获得较高的透光率，所述有机发光显示面板的所述阴极1设为极薄金属层，所述阴极1的阻抗较大，并且由于所述阴极1的输入端延伸至所述周边区20，在本实施例中，所述显示区10为矩形，所述周边区20包围所述显示区10，因此，所述显示区10中间位置的所述阴极1的实际电压高于所述周边区20的电压。
需要说明的是，在所述的顶发光器件显示面板中，所述显示区10还包括至少一子像素区4，每个所述子像素区4设置一个OLED器件，图 2中仅示意出OLED器件中的所述阴极1，并未对OLED器件的具体结构进行示意，所有的所述子像素区4中的OLED器件还包括阳极、发光层及所述阴极1，所述阳极、所述发光层未图示。
所述阴极1的材料可以是氧化铟锡(ITO)、氧化铟锌(IZO)等透明导电材料。
续见图2，在本发明的实施例中，所述辅助阴极2包括至少一条沿一第一方向延伸设置的第一金属走线21，所述第一金属走线21均匀设置；每m行所述子像素区4设置一所述第一金属走线21，m为正整数。
在其他实施例中，所述辅助阴极走线2包括至少一条沿一第二方向延伸设置的第二金属走线（未图示），所述第二金属走线均匀设置；每n列子像素的区域设置一所述第二金属走线，n为正整数。
在另一实施例中，所述辅助阴极2包括至少一条沿第一方向设置的第一金属走线和至少一条沿第二方向设置的第二金属走线（未图示），所述第一金属走线和所述第二金属走线均匀交叉设置，所述第一金属线和第二金属线直接连接。
以上实施例中，所述第一金属走线、所述第二金属走线均由所述显示区10延伸至所述周边区20，本实施例中通过控制所述第一金属走线、所述第二金属走线的线宽，在合理范围内，所述第一金属走线、所述第二金属走线的线宽越宽，能够使所述辅助阴极2上的阻抗越低。在本发明实施例提供的有机发光显示面板中，所述阴极1与所述辅助阴极2异层设置。
本发明的一些实施例中，所述辅助阴极2设置于所述衬底30与所述OLED器件之间，且形成所述OLED器件在形成所述辅助阴极2之后进行，以保证所述辅助阴极2不会影响所述OLED器件对应的所述子像素区4的开口率。
本发明的一些实施例中，所述有机发光显示面板还包括设置于所述衬底30上的薄膜晶体管（未图示），所述薄膜晶体管用于驱动所述OLED器件，从而实现显示功能，且提高分辨率。所述薄膜晶体管包括栅极、源漏极，所述OLED器件可以为设置于每个所述子像素区4的顶栅型OLED，所述阴极1为透明电极。
在一些实施例中，所述辅助阴极2设置于所述薄膜晶体管与所述OLED器件之间，即所述辅助阴极2形成在所述薄膜晶体管之后，再依次形成所述OLED器件的所述阳极、所述发光层及所述阴极1。
在一些实施例中，所述辅助阴极2可与所述薄膜晶体管的栅极同层设置。
在一些实施例中，所述辅助阴极2可与所述薄膜晶体管的源漏极同层设置。
续见图2，所述辅助阴极2为金属导电材料，所述辅助阴极2可以为钼、铝、铬、金以及银中之一或组合，在此不作限定。
续见图2，本发明实施例中，所述接触孔3设置于所述阴极1与所述辅助阴极走线2之间的层，每一所述子像素区4对应至少一个所述接触孔3，所述接触孔3在所述显示区10内均匀设置。
续见图2，本发明实施例所述的有机发光显示面板，对应同一条所述第一金属走线21的每相邻两个所述接触孔3之间的中心距离相同，且所述接触孔3距离所述阴极1的输入端越远，所述接触孔3的尺寸越大。即，在本实施例中，所示显示区10的所述阴极1的输入端延伸至所述周边区20，所述显示区10呈矩形，在所述显示区10内，对应所述显示区10中间位置的所述接触孔3的尺寸较大，对应所述显示区10的周边位置的所述接触孔3的尺寸较小。
在本实施例中，所述接触孔3为边长不同的正方形孔，在其他实施例中，所述接触孔3可以为圆形孔、椭圆型孔、多边形孔等多种形式。
续见图2，通过所述接触孔3将对应的所述阴极1与辅助阴极2电连接，以使所述阴极1与所述辅助阴极2 实现并联连接，即相当于所述阴极1并联了一个电阻，从而可以使所述阴极1的电阻降低。由于所述接触孔3的尺寸越大，所述阴极1与所述辅助阴极2之间的接触面积增大，使得所述阴极1与所述辅助阴极2的接触阻抗减小，因而能够更多地降低所述阴极1的电压，使所述阴极1的实际电压更接近输入电压，从而使所述阴极1上各处的电阻可以更均匀，即可以使不同位置的所述阴极1的电阻在误差允许的范围内相同，进而能够使不同位置的所述阴极1的压降（IR Drop）在误差允许的范围内相同，从而能够改善压降（IR Drop）导致的影响，实现提高显示均匀性的目的。
 工业实用性
本申请的主题可以在工业中制造和使用，具备工业实用性。

Claims (17)

  1. 一种有机发光显示面板，具有一显示区和一周边区，其中，所述有机发光显示面板包括：
    一衬底；
    至少一子像素区，所述子像素区设置于所述显示区内；
    一阴极，所述阴极的输入端延伸至所述周边区；
    一辅助阴极，所述辅助阴极包括至少一条沿一第一方向延伸设置的第一金属走线，以及至少一条沿一第二方向延伸设置的第二金属走线，每m行子像素区设置一所述第一金属走线；每n列子像素区设置一所述第二金属走线；m和n均为正整数；以及，
    至少一接触孔，所述阴极与所述辅助阴极通过所述接触孔电连接；并且其中，
    每一所述子像素区对应至少一个所述接触孔，且所述接触孔距离所述阴极的输入端越远，所述接触孔的尺寸越大。
  2. 根据权利要求1所述的有机发光显示面板，其中，在一个所述子像素区域至少设置一个所述接触孔。
  3. 根据权利要求1所述的有机发光显示面板，其中，对应同一条所述第一金属走线的每相邻两个所述接触孔之间的中心距离相同。
  4. 根据权利要求1所述的有机发光显示面板，其中，所述接触孔为圆形、椭圆型或多边形。
  5. 根据权利要求1所述的有机发光显示面板，其中，所述辅助阴极走线的材料为金属导电材料。
  6. 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还包括设置于每个子像素区域的一顶栅型OLED。
  7. 根据权利要求6所述的有机发光显示面板，其中，所述阴极为透明电极。
  8. 一种有机发光显示面板，具有一显示区和一周边区，其中，所述有机发光显示面板包括：
    一衬底；
    至少一子像素区，所述子像素区设置于所述显示区内；
    一阴极，所述阴极的输入端延伸至所述周边区；
    一辅助阴极；
    至少一接触孔，所述阴极与所述辅助阴极通过所述接触孔电连接；其中，
    每一所述子像素区对应至少一个所述接触孔，且所述接触孔距离所述阴极的输入端越远，所述接触孔的尺寸越大。
  9. 根据权利要求8所述的有机发光显示面板，其中，所述辅助阴极包括至少一条沿一第一方向延伸设置的第一金属走线。
  10. 根据权利要求8所述的有机发光显示面板，其中，所述辅助阴极还包括至少一条沿一第二方向延伸设置的第二金属走线。
  11. 根据权利要求8所述的有机发光显示面板，其中，每m行子像素区设置一所述第一金属走线；每n列子像素区设置一所述第二金属走线；m和n均为正整数。
  12. 根据权利要求8所述的有机发光显示面板，其中，在一个子像素区域至少设置一个所述接触孔。
  13. 根据权利要求8所述的有机发光显示面板，其中，对应同一条所述第一金属走线的每相邻两个所述接触孔之间的中心距离相同。
  14. 根据权利要求8所述的有机发光显示面板，其中，所述接触孔为圆形、椭圆型或多边形。
  15. 根据权利要求8所述的有机发光显示面板，其中，所述辅助阴极走线的材料为金属导电材料。
  16. 根据权利要求8所述的有机发光显示面板，其中，所述有机发光显示面板还包括设置于每个子像素区域的顶栅型OLED。
  17. 根据权利要求16所述的有机发光显示面板，其中，所述阴极为透明电极。
PCT/CN2019/100320 2019-04-29 2019-08-13 有机发光显示面板 Ceased WO2020220511A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/498,026 US20210367185A1 (en) 2019-04-29 2019-08-13 Organic light-emitting diode display panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910354689.0 2019-04-29
CN201910354689.0A CN110112190A (zh) 2019-04-29 2019-04-29 有机发光显示面板

Publications (1)

Publication Number Publication Date
WO2020220511A1 true WO2020220511A1 (zh) 2020-11-05

Family

ID=67487406

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/100320 Ceased WO2020220511A1 (zh) 2019-04-29 2019-08-13 有机发光显示面板

Country Status (3)

Country Link
US (1) US20210367185A1 (zh)
CN (1) CN110112190A (zh)
WO (1) WO2020220511A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110112190A (zh) * 2019-04-29 2019-08-09 深圳市华星光电半导体显示技术有限公司 有机发光显示面板
CN110703520B (zh) * 2019-09-17 2020-11-24 深圳市华星光电半导体显示技术有限公司 显示面板母板及其制作方法、显示面板
CN111276632B (zh) * 2020-02-19 2021-03-16 深圳市华星光电半导体显示技术有限公司 显示面板及其制作方法
CN111653685A (zh) * 2020-06-18 2020-09-11 京东方科技集团股份有限公司 显示背板、显示面板和显示装置
CN112133730B (zh) * 2020-09-25 2022-10-04 京东方科技集团股份有限公司 显示背板及其制作方法和显示装置
CN113130821B (zh) * 2021-04-19 2022-11-15 合肥鑫晟光电科技有限公司 显示面板及其制造方法、显示装置
US12382786B2 (en) * 2021-04-30 2025-08-05 Chengdu Boe Optoelectronics Technology Co., Ltd. Display panel and display device
EP4564344A3 (en) 2021-06-25 2025-08-06 Boe Technology Group Co., Ltd. Display panel
CN114023790B (zh) * 2021-10-18 2023-05-30 深圳市华星光电半导体显示技术有限公司 显示面板及显示终端
WO2025074470A1 (ja) * 2023-10-02 2025-04-10 シャープディスプレイテクノロジー株式会社 表示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9048454B2 (en) * 2013-05-21 2015-06-02 Samsung Display Co., Ltd. Organic light emitting display apparatus and method of manufacturing the same
CN107604306A (zh) * 2017-09-12 2018-01-19 深圳市华星光电半导体显示技术有限公司 用于oled器件蒸镀的掩膜板及其制造的oled器件
CN107706210A (zh) * 2017-08-18 2018-02-16 京东方科技集团股份有限公司 Oled显示面板、oled显示面板的制造方法及显示装置
CN108615825A (zh) * 2018-04-26 2018-10-02 京东方科技集团股份有限公司 一种有机发光显示面板及其制作方法
CN108933154A (zh) * 2017-05-26 2018-12-04 京东方科技集团股份有限公司 有机发光二极管显示基板的制备方法、显示基板及显示装置
CN110112190A (zh) * 2019-04-29 2019-08-09 深圳市华星光电半导体显示技术有限公司 有机发光显示面板

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102356592B1 (ko) * 2014-11-03 2022-01-28 삼성디스플레이 주식회사 유기 발광 표시 장치 및 그 제조 방법
CN104465711A (zh) * 2014-12-30 2015-03-25 京东方科技集团股份有限公司 Amoled阵列基板及其制造方法、显示装置
CN106784375A (zh) * 2016-12-27 2017-05-31 武汉华星光电技术有限公司 Oled显示单元及其制作方法
CN107994061B (zh) * 2017-11-29 2020-11-03 京东方科技集团股份有限公司 一种盖板及其制备方法、显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9048454B2 (en) * 2013-05-21 2015-06-02 Samsung Display Co., Ltd. Organic light emitting display apparatus and method of manufacturing the same
CN108933154A (zh) * 2017-05-26 2018-12-04 京东方科技集团股份有限公司 有机发光二极管显示基板的制备方法、显示基板及显示装置
CN107706210A (zh) * 2017-08-18 2018-02-16 京东方科技集团股份有限公司 Oled显示面板、oled显示面板的制造方法及显示装置
CN107604306A (zh) * 2017-09-12 2018-01-19 深圳市华星光电半导体显示技术有限公司 用于oled器件蒸镀的掩膜板及其制造的oled器件
CN108615825A (zh) * 2018-04-26 2018-10-02 京东方科技集团股份有限公司 一种有机发光显示面板及其制作方法
CN110112190A (zh) * 2019-04-29 2019-08-09 深圳市华星光电半导体显示技术有限公司 有机发光显示面板

Also Published As

Publication number Publication date
US20210367185A1 (en) 2021-11-25
CN110112190A (zh) 2019-08-09

Similar Documents

Publication Publication Date Title
WO2020220511A1 (zh) 有机发光显示面板
US12200977B2 (en) Large area organic light-emitting diode display
KR102905967B1 (ko) 픽셀 어레이 및 디스플레이 디바이스
CN109524441B (zh) Oled显示基板、显示面板
US10403845B2 (en) Top-emissive organic light-emitting diode display
US10276641B2 (en) Display panel and display device
WO2020192083A1 (zh) 显示面板
US9716131B2 (en) AMOLED backplane structure and manufacturing method thereof
US8963137B2 (en) Organic light-emitting display device and method of fabricating the same
US9640593B2 (en) Touch organic light emitting diode display device and manufacturing method thereof
CN104091818B (zh) 一种有机发光显示面板、装置及其制造方法
CN104953044B (zh) 柔性oled及其制作方法
WO2020228209A1 (zh) 显示面板
US20130056784A1 (en) Organic Light-Emitting Display Device and Method of Fabricating the Same
CN108511506A (zh) 一种oled基板及显示面板
WO2020206810A1 (zh) 双面显示面板及其制备方法
CN109950290B (zh) Amoled显示屏、显示设备及移动终端
CN108258026B (zh) 显示面板的绑定区结构及其制作方法、显示面板
CN108364993B (zh) 一种显示面板的制作方法、显示面板及显示装置
CN101847649A (zh) 有机发光显示装置及其制造方法
CN107482128A (zh) 一种触控阵列基板及触控面板
KR20140139710A (ko) 유기 발광 표시 장치 및 그 제조 방법
WO2020215398A1 (zh) Oled显示面板及其制作方法
CN104218070A (zh) 阵列基板及显示装置
CN117806079A (zh) 一种像素结构及包含其的显示面板

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19926865

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19926865

Country of ref document: EP

Kind code of ref document: A1