WO2020224070A1 - Oled显示面板 - Google Patents

Oled显示面板 Download PDF

Info

Publication number
WO2020224070A1
WO2020224070A1 PCT/CN2019/099302 CN2019099302W WO2020224070A1 WO 2020224070 A1 WO2020224070 A1 WO 2020224070A1 CN 2019099302 W CN2019099302 W CN 2019099302W WO 2020224070 A1 WO2020224070 A1 WO 2020224070A1
Authority
WO
WIPO (PCT)
Prior art keywords
pixel definition
layer
sub
pixel
display panel
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/CN2019/099302
Other languages
English (en)
French (fr)
Inventor
刘扬
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 US16/496,958 priority Critical patent/US11316126B2/en
Publication of WO2020224070A1 publication Critical patent/WO2020224070A1/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
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] 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
    • 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
    • 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
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • 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
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80522—Cathodes combined with auxiliary electrodes

Definitions

  • This application relates to the field of display technology, and in particular to an OLED display panel.
  • an auxiliary electrode is usually set above the common electrode to reduce the impedance of the common electrode and relieve IR-drop (power supply voltage drop).
  • the structure of the existing OLED display panel is shown in FIG. 1, and includes a substrate 100 arranged in a box, a cover 200, and an auxiliary electrode 300 formed on the cover 200.
  • the substrate 100 includes a substrate 110, a driving circuit layer 120, and pixels.
  • the pixel definition layer 130 includes a plurality of pixel definition regions 1300. In each pixel definition region 1300, the common electrode 160 and the auxiliary electrode 300 have an electrical property
  • the connection surface 400, this kind of plane-to-plane electrical connection is prone to poor connection, so that the auxiliary electrode 300 is not connected to the common electrode 160, and cannot reduce the impedance of the common electrode 160 and reduce IR-drop.
  • the existing OLED display panel has the technical problem of poor connection between the common electrode and the auxiliary electrode, which needs to be improved.
  • the present application provides an OLED display panel to alleviate the technical problem of poor connection between the common electrode and the auxiliary electrode in the existing OLED display panel.
  • the present application provides an OLED display panel, including a substrate provided in a box, a cover plate, and a plurality of auxiliary electrodes formed on a side of the cover plate close to the substrate, the substrate including:
  • the pixel definition layer is formed on the driving circuit layer and is used to define a plurality of sub-pixel regions.
  • the pixel definition layer includes a plurality of pixel definition regions. In at least one pixel definition region, the pixel definition layer is far from the driving circuit layer
  • the surface is formed with bumps;
  • the luminescent material layer is formed in the sub-pixel area defined by the pixel definition layer;
  • the plurality of auxiliary electrodes are arranged corresponding to the plurality of pixel defining areas, and in the pixel defining area corresponding to each protrusion formed thereon, the auxiliary electrode and the common electrode have at least two electrical connections surface.
  • auxiliary electrode is provided in the defined area corresponding to each pixel formed with protrusions.
  • the cross-sectional shape of the auxiliary electrode is a trapezoid.
  • the cross-sectional shape of the auxiliary electrode is rectangular.
  • At least a first auxiliary electrode and a second auxiliary electrode are provided in a defined area corresponding to each pixel formed with protrusions, the first auxiliary electrode and the second auxiliary electrode Both are connected with the cover plate.
  • the cross-sectional shape of the first auxiliary electrode and the cross-sectional shape of the second auxiliary electrode are the same.
  • the cross-sectional shape of the first auxiliary electrode and the cross-sectional shape of the second auxiliary electrode are different.
  • one part corresponds to each pixel definition area with only one auxiliary electrode, and the other part corresponds to each pixel definition area with at least one auxiliary electrode.
  • the auxiliary electrode and the second auxiliary electrode, the first auxiliary electrode and the second auxiliary electrode are both connected to the cover plate.
  • the pixel definition layer is integrally formed.
  • the pixel definition layer in the at least one pixel definition area, includes at least a first pixel definition layer and a second pixel definition layer, and the first pixel definition layer and the second pixel definition layer
  • the two-division pixel definition layer is all arranged on the driving circuit layer.
  • the surfaces of the first sub-pixel definition layer and the second sub-pixel definition layer away from the driving circuit layer are both flat, and the height of the first sub-pixel definition layer is greater than that of the driving circuit layer.
  • the second sub-pixel defines the height of the layer.
  • the surfaces of the first sub-pixel definition layer and the second sub-pixel definition layer away from the driving circuit layer are both flat and have the same height, and the first sub-pixel definition layer and The projection of the surface of the second sub-pixel definition layer away from the driving circuit layer on the driving circuit layer is not connected.
  • At least one of the first sub-pixel definition layer and the second sub-pixel definition layer is formed on a surface away from the driving circuit layer. Raised.
  • the cross-sectional shapes of all protrusions in each sub-pixel definition layer are the same.
  • the first sub-pixel definition layer has a convex cross-sectional shape on the surface away from the driving circuit layer
  • the second sub-pixel definition layer has a surface away from the driving circuit layer.
  • the cross-sectional shapes of the protrusions on the top are the same.
  • the first sub-pixel definition layer has a convex cross-sectional shape on the surface away from the driving circuit layer
  • the second sub-pixel definition layer has a surface away from the driving circuit layer.
  • the cross-sectional shape of the bumps on the top is different.
  • the pixel definition layer in the at least one pixel definition area, includes at least a first pixel definition layer and a second pixel definition layer, and the first pixel definition layer is disposed in the On the driving circuit layer, the second sub-pixel definition layer is disposed on the first sub-pixel definition layer.
  • a part of the pixel definition layer is an integral structure, and the other part includes at least a first sub-pixel definition layer and a second sub-pixel definition layer.
  • the first sub-pixel definition layer and the second sub-pixel definition layer are both disposed on the driving circuit layer.
  • the first sub-pixel definition layer is disposed on the driving circuit layer
  • the second sub-pixel definition layer is disposed on the first sub-pixel definition layer
  • the present application provides an OLED display panel, including a substrate arranged in a box, a cover plate, and a plurality of auxiliary electrodes formed on a side of the cover plate close to the substrate.
  • the substrate includes a substrate, a driving circuit layer, and a pixel definition.
  • the drive circuit layer is formed on the substrate;
  • the pixel definition layer is formed on the drive circuit layer and is used to define a plurality of sub-pixel regions, and the pixel definition layer includes A plurality of pixel definition areas, in at least one pixel definition area, the surface of the pixel definition layer away from the driving circuit layer is formed with protrusions;
  • the luminescent material layer is formed in the sub-pixel area defined by the pixel definition layer;
  • the common electrode is formed on the luminescent material layer and the pixel defining layer; wherein, the plurality of auxiliary electrodes are arranged corresponding to the plurality of pixel defining regions, and are arranged corresponding to each pixel formed with protrusions.
  • the auxiliary electrode and the common electrode have at least two electrical connection surfaces.
  • the auxiliary electrode and the common electrode have at least two electrical connection surfaces, thereby improving the auxiliary electrode and The connection yield of the common electrode ensures that the auxiliary electrode can reduce the impedance of the common electrode and reduce IR-drop.
  • FIG. 1 is a schematic diagram of the structure of an OLED display panel in the prior art
  • FIG. 2 is a schematic diagram of the first structure of an OLED display panel provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of an OLED display panel provided by an embodiment of the application with a convex pixel definition layer formed;
  • FIG. 4 is a schematic diagram of a second structure of an OLED display panel provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a third structure of an OLED display panel provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of a fourth structure of an OLED display panel provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a fifth structure of an OLED display panel provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of a sixth structure of an OLED display panel provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of a seventh structure of an OLED display panel provided by an embodiment of the application.
  • the present application provides an OLED display panel to alleviate the technical problem of poor connection between the common electrode and the auxiliary electrode in the existing OLED display panel.
  • FIG. 2 it is a schematic diagram of the first structure of an OLED display panel provided by an embodiment of this application.
  • the OLED display panel includes a substrate 10, a cover plate 20, and a plurality of auxiliary electrodes 30 formed on the side of the cover plate 20 close to the substrate 10.
  • the substrate 10 includes a substrate 11, a driving circuit layer 12, a pixel definition layer 13, The pixel electrode 14, the light-emitting material layer 15 and the common electrode 16.
  • the substrate 11 is usually a glass substrate, but is not limited thereto, and may be a flexible substrate, for example.
  • the driving circuit layer 12 is formed on the substrate 11 and includes a plurality of thin film transistors (not shown in the figure) for driving the OLED display panel.
  • a pixel definition layer 13 is formed on the driving circuit layer 12.
  • the pixel definition layer 13 includes a plurality of pixel definition areas 1301.
  • the pixel definition layer 13 is used to define a plurality of sub-pixel areas 1302.
  • the sub-pixel areas 1302 are formed in two adjacent pixel definition areas. Between 1301. In at least one pixel defining area 1301, the surface 103 of the pixel defining layer 13 away from the driving circuit layer 12 is formed with protrusions.
  • the pixel electrode 14 is formed on the driving circuit layer 12 and located in the sub-pixel area 1302.
  • the drain electrode of the thin film transistor in the driving circuit layer 12 can be electrically connected to the pixel electrode 14.
  • the luminescent material layer 15 is formed in the sub-pixel area 1302 defined by the pixel defining layer 13, and the common electrode 16 is formed on the luminescent material layer 15 and the pixel defining layer 13.
  • the auxiliary electrode 30 is disposed on the side of the cover plate 20 close to the substrate 10, and the plurality of auxiliary electrodes 30 are disposed corresponding to the plurality of pixel defining regions 1301.
  • auxiliary electrode 30 is provided in each pixel defining area 1301 formed with protrusions, and the cross-sectional shape of the auxiliary electrode 30 may be trapezoidal, rectangular or other structures.
  • the auxiliary electrode 30 and the common electrode 16 When the cover plate 20 is pressed against the substrate 10, the auxiliary electrode 30 and the common electrode 16 have at least two electrical connection surfaces in the pixel definition area 1301 corresponding to each protrusion formed, as shown in FIG.
  • the electrode 30 and the common electrode 16 have a first electrical connection surface 301 and a second electrical connection surface 302.
  • only a part of the pixel definition layer 13 in the pixel definition area 1301 has protrusions formed on the surface 103 away from the driving circuit layer 12.
  • all the pixel definition layers 13 in all the pixel definition regions 1301 are formed with bumps on the surface 103 away from the driving circuit layer 12.
  • the pixel defining layer 13 is integrally formed, and the structure of the pixel defining layer 13 is as shown in FIG. 3.
  • the surface 103 of the pixel definition layer 13 away from the driving circuit layer 12 includes a protrusion, and the cross section of the protrusion may be trapezoidal, rectangular or other shapes.
  • the surface 103 of the pixel definition layer 13 away from the driving circuit layer 12 includes two protrusions, a concave surface is formed between the two protrusions, and the cross section of the protrusions may be trapezoidal, rectangular or other shapes. The shape and size of the two protrusions may be equal or not equal.
  • the surface 103 of the pixel definition layer 13 away from the driving circuit layer 12 includes three protrusions, and two concave surfaces are formed between the three protrusions.
  • the cross section of the protrusions can be trapezoidal, rectangular or other shapes. Shape, the shape and size of the three protrusions may be equal or unequal, and the three protrusions may be arranged at equal intervals or unequal intervals.
  • the shape of the surface 103 of the pixel definition layer 13 away from the driving circuit layer 12 is not limited to this, and more protrusions may be formed.
  • the protrusions may be straight or curved.
  • the cross-sectional shapes of all the protrusions may be equal, or there may be at least one protrusion having a different cross-sectional shape from other protrusions, and all protrusions may be arranged at equal intervals or at unequal intervals.
  • the auxiliary electrode 30 and the common electrode 16 have at least two electrical connection surfaces, When the cover plate 20 and the substrate 10 are pressed together, if one of the electrical connection surfaces is not electrically connected, there are other electrical connection surfaces that can be electrically connected, which is only provided between the auxiliary electrode 30 and the common electrode 16
  • the structure of an electrical connection surface improves the connection yield of the auxiliary electrode 30 and the common electrode 16, thereby ensuring that the auxiliary electrode 30 can reduce the impedance of the common electrode 16 and reduce IR-drop.
  • FIG. 4 a schematic diagram of the second structure of the OLED display panel provided by the embodiment of the application.
  • the OLED display panel includes a substrate 10 arranged in a box, a cover plate 20, and a cover plate 20 formed on a side close to the substrate 10.
  • the auxiliary electrode 30 includes at least a first auxiliary electrode 31 and a second auxiliary electrode 32 in the pixel defining area 1301 corresponding to each protrusion formed thereon, and the first auxiliary electrode 31 Both the second auxiliary electrode 32 and the second auxiliary electrode 32 are connected to the cover plate 20, and the cross-sectional shape of the first auxiliary electrode 31 and the cross-sectional shape of the second auxiliary electrode 32 may be the same or different.
  • the auxiliary electrode 30 and the common electrode 16 have four electrical connection surfaces, which are the auxiliary electrode 31 and the common electrode respectively.
  • auxiliary electrode 30 and the common electrode 16 have four electrical connection surfaces, if one of the electrical connection surfaces is not electrically connected, there are other electrical connection surfaces that can be electrically connected. Compared to the auxiliary electrode 30 and the common electrode The structure with only one electrical connection surface between the electrodes 16 improves the connection yield of the auxiliary electrode 30 and the common electrode 16 and ensures that the auxiliary electrode 30 can reduce the impedance of the common electrode 16 and reduce IR-drop.
  • the OLED display panel includes a substrate 10 arranged in a box, a cover plate 20, and a plurality of panels formed on the side of the cover plate 20 close to the substrate 10.
  • the pixel defining layer 13 includes at least a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132, a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132 are all arranged on the driving circuit layer 12.
  • the surface 1311 of the first sub-pixel definition layer 131 away from the driving circuit layer 12 and the surface 1321 of the second sub-pixel definition layer 132 away from the driving circuit layer 12 are both flat surfaces.
  • the height is greater than the height of the second sub-pixel definition layer 132. Since the heights of the first sub-pixel definition layer 131 and the second sub-pixel definition layer 132 are different, the surface of the pixel definition layer 13 composed of the two forms a protrusion away from the driving circuit layer 12.
  • auxiliary electrode 30 is provided in each pixel defining area 1301 formed with protrusions, and the cross-sectional shape of the auxiliary electrode 30 may be trapezoidal, rectangular or other structures.
  • the auxiliary electrode 30 and the common electrode 16 have a first electrical connection surface 301 and a second electrical connection surface 302.
  • the auxiliary electrode 30 includes at least a first auxiliary electrode 31 and a second auxiliary electrode 32 in the pixel defining area 1301 corresponding to each protrusion formed thereon, the first auxiliary electrode 31 and the second auxiliary electrode
  • the electrodes 32 are all connected to the cover plate 20, and the cross-sectional shape of the first auxiliary electrode 31 and the cross-sectional shape of the second auxiliary electrode 32 may be the same or different.
  • the cover plate 20 and the substrate 10 are pressed together, the auxiliary electrode 30 and the common electrode 16 have more electrical connection surfaces in each pixel definition area 1301 formed with protrusions.
  • auxiliary electrode 30 and the common electrode 16 have at least two electrical connection surfaces, if one of the electrical connection surfaces is not electrically connected, there are other electrical connection surfaces that can be electrically connected. Compared with the auxiliary electrode 30 and The structure in which only one electrical connection surface is provided between the common electrode 16 improves the connection yield of the auxiliary electrode 30 and the common electrode 16 and thereby ensures that the auxiliary electrode 30 can reduce the impedance of the common electrode 16 and reduce IR-drop.
  • FIG. 6 a fourth structural schematic diagram of an OLED display panel provided by an embodiment of this application.
  • the OLED display panel includes a substrate 10 arranged in a box, a cover plate 20, and a plurality of panels formed on a side of the cover plate 20 close to the substrate 10.
  • the pixel defining layer 13 includes at least a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132, a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132 are all arranged on the driving circuit layer 12.
  • the surface 1311 of the first sub-pixel defining layer 131 away from the driving circuit layer 12 and the surface 1321 of the second sub-pixel defining layer 132 away from the driving circuit layer 12 are both flat, and the height of the first sub-pixel defining layer 131 is the same as that of the second sub-pixel.
  • the heights of the definition layers 132 are equal.
  • the projections of the first sub-pixel definition layer 131 away from the surface 1311 of the driving circuit layer 12 and the surface 1321 of the second sub-pixel definition layer 132 away from the driving circuit layer 12 on the driving circuit layer 12 are not connected, that is,
  • the pixel definition layer 13 composed of the two forms protrusions on the surface away from the driving circuit layer 12.
  • One or more auxiliary electrodes 30 may be provided in the pixel defining area 1301 corresponding to each protrusion formed. In this embodiment, only one auxiliary electrode 30 is provided.
  • the auxiliary electrode 30 and the common electrode 16 When the cover plate 20 is pressed against the substrate 10, the auxiliary electrode 30 and the common electrode 16 have a first electrical connection surface 301 and a second electrical connection surface 302. As the number of auxiliary electrodes 30 increases, the number of electrical connection surfaces also increases.
  • auxiliary electrode 30 and the common electrode 16 have at least two electrical connection surfaces, if one of the electrical connection surfaces is not electrically connected, there are other electrical connection surfaces that can be electrically connected. Compared with the auxiliary electrode 30 and The structure in which only one electrical connection surface is provided between the common electrode 16 improves the connection yield of the auxiliary electrode 30 and the common electrode 16 and thereby ensures that the auxiliary electrode 30 can reduce the impedance of the common electrode 16 and reduce IR-drop.
  • the OLED display panel includes a substrate 10 arranged in a box, a cover plate 20, and a cover plate 20 formed on a side close to the substrate 10.
  • the pixel defining layer 13 includes at least a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132, a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132 are all arranged on the driving circuit layer 12.
  • the surface 1311 of the first sub-pixel defining layer 131 away from the driving circuit layer 12 is a plane, and the surface 1321 of the second sub-pixel defining layer 132 away from the driving circuit layer 12 is formed with protrusions.
  • the surface 1321 of the second sub-pixel definition layer 132 away from the driving circuit layer 12 includes a protrusion or a plurality of protrusions.
  • the cross section of the protrusion can be trapezoidal, rectangular or other shapes.
  • the protrusions can be straight or curved.
  • the cross-sectional shapes of the protrusions may be equal, or there may be at least one protrusion having a different cross-sectional shape from other protrusions, and all protrusions may be arranged at equal intervals or at unequal intervals.
  • One or more auxiliary electrodes 30 may be provided in the pixel defining area 1301 corresponding to each protrusion formed. In this embodiment, only one auxiliary electrode 30 is provided.
  • the auxiliary electrode 30 and the common electrode 16 When the cover plate 20 is pressed against the substrate 10, the auxiliary electrode 30 and the common electrode 16 have a first electrical connection surface 301 and a second electrical connection surface 302. As the number of auxiliary electrodes 30 increases, the number of electrical connection surfaces also increases.
  • auxiliary electrode 30 and the common electrode 16 have at least two electrical connection surfaces, if one of the electrical connection surfaces is not electrically connected, there are other electrical connection surfaces that can be electrically connected. Compared with the auxiliary electrode 30 and The structure in which only one electrical connection surface is provided between the common electrode 16 improves the connection yield of the auxiliary electrode 30 and the common electrode 16 and thereby ensures that the auxiliary electrode 30 can reduce the impedance of the common electrode 16 and reduce IR-drop.
  • the OLED display panel includes a substrate 10 arranged in a box, a cover plate 20, and a plurality of panels formed on the side of the cover plate 20 close to the substrate 10.
  • the pixel defining layer 13 includes at least a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132, a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132 are all arranged on the driving circuit layer 12.
  • the surface 1311 of the first sub-pixel definition layer 131 away from the driving circuit layer 12 and the surface 1321 of the second sub-pixel definition layer 132 away from the driving circuit layer 12 are both formed with protrusions.
  • the cross section of the protrusions can be trapezoidal, rectangular or other shapes.
  • the protrusions can be straight or curved. All protrusions can be arranged at equal intervals or unequal intervals.
  • the cross-sectional shape of all protrusions on the surface 1311 of the first sub-pixel defining layer 131 away from the driving circuit layer 12 may be the same, or there may be at least one protrusion having a different cross-sectional shape from other protrusions.
  • the second sub-pixel defining layer 132 is far away from the driving circuit.
  • the cross-sectional shape of all protrusions on the surface 1321 of the circuit layer 12 may be the same, or there may be at least one protrusion having a different cross-sectional shape from other protrusions.
  • cross-sectional shape of all the protrusions on the surface 1311 of the first sub-pixel defining layer 131 away from the driving circuit layer 12 is the same, and the cross-sectional shape of all the protrusions on the surface 1321 of the second sub-pixel defining layer 132 away from the driving circuit layer 12 is also the same .
  • the cross-sectional shapes of all protrusions in the two sub-pixel definition layers may be the same or different.
  • One or more auxiliary electrodes 30 may be provided in the pixel defining area 1301 corresponding to each protrusion formed. In this embodiment, only one auxiliary electrode 30 is provided.
  • the auxiliary electrode 30 and the common electrode 16 When the cover plate 20 is pressed against the substrate 10, the auxiliary electrode 30 and the common electrode 16 have a first electrical connection surface 301 and a second electrical connection surface 302. As the number of auxiliary electrodes 30 increases, the number of electrical connection surfaces also increases.
  • auxiliary electrode 30 and the common electrode 16 have at least two electrical connection surfaces, if one of the electrical connection surfaces is not electrically connected, there are other electrical connection surfaces that can be electrically connected. Compared with the auxiliary electrode 30 and The structure in which only one electrical connection surface is provided between the common electrode 16 improves the connection yield of the auxiliary electrode 30 and the common electrode 16 and thereby ensures that the auxiliary electrode 30 can reduce the impedance of the common electrode 16 and reduce IR-drop.
  • the OLED display panel includes a substrate 10 arranged in a box, a cover plate 20, and a cover plate 20 formed on a side close to the substrate 10.
  • the pixel defining layer 13 includes at least a first sub-pixel defining layer 131 and a second sub-pixel defining layer 132, and the first sub-pixel defining layer 131 is disposed on the driving circuit layer 12 ,
  • the second sub-pixel definition layer 132 is disposed on the first sub-pixel definition layer 131, and the stacked structure of the first sub-pixel definition layer 131 and the second sub-pixel definition layer 132 makes the pixel definition layer 13 away from the side of the driving circuit layer 12 Form bumps.
  • One or more auxiliary electrodes 30 may be provided in the pixel defining area 1301 corresponding to each protrusion formed. In this embodiment, only one auxiliary electrode 30 is provided.
  • the auxiliary electrode 30 and the common electrode 16 When the cover plate 20 is pressed against the substrate 10, the auxiliary electrode 30 and the common electrode 16 have a first electrical connection surface 301 and a second electrical connection surface 302. As the number of auxiliary electrodes 30 increases, the number of electrical connection surfaces also increases.
  • auxiliary electrode 30 and the common electrode 16 have at least two electrical connection surfaces, if one of the electrical connection surfaces is not electrically connected, there are other electrical connection surfaces that can be electrically connected. Compared with the auxiliary electrode 30 and The structure in which only one electrical connection surface is provided between the common electrode 16 improves the connection yield of the auxiliary electrode 30 and the common electrode 16 and thereby ensures that the auxiliary electrode 30 can reduce the impedance of the common electrode 16 and reduce IR-drop.
  • the pixel defining layer 13 is not limited to the first sub-pixel defining layer 131 and the second sub-pixel defining layer 132. It also includes more sub-pixel definition layers, and each sub-pixel definition layer can be connected or unconnected, and can be a stacked structure, or all can be provided on the driving circuit layer 12.
  • the pixel definition layer 13 can be all integrally formed, or all of it can be at least two sub-pixel definition layers arranged on the drive circuit layer 12, one part can also be an integrally formed structure, and the other part can be at least one part arranged on the drive circuit layer 12. Two sub-pixel definition layers.
  • the application also provides an OLED display device, including the OLED display panel in any of the above embodiments.
  • the present application provides an OLED display panel, including a substrate, a cover plate, and a plurality of auxiliary electrodes formed on the side of the cover plate close to the substrate.
  • the substrate includes a substrate, a driving circuit layer, a pixel definition layer, a light-emitting material layer, and The common electrode, the driving circuit layer is formed on the substrate; the pixel definition layer is formed on the driving circuit layer, and is used to define a plurality of sub-pixel regions.
  • the pixel definition layer includes a plurality of pixel definition regions.
  • the pixel definition In at least one pixel definition region, the pixel definition The surface of the layer away from the driving circuit layer is formed with protrusions; the light-emitting material layer is formed in the sub-pixel area defined by the pixel definition layer; the common electrode is formed on the light-emitting material layer and the pixel definition layer; multiple auxiliary electrodes correspond to multiple pixel definitions The area is arranged, and the auxiliary electrode and the common electrode have at least two electrical connection surfaces in the defined area corresponding to each pixel formed with protrusions.
  • the auxiliary electrode and the common electrode have at least two electrical connection surfaces, thereby improving the auxiliary electrode and The connection yield of the common electrode ensures that the auxiliary electrode can reduce the impedance of the common electrode and reduce the IR-drop.

Landscapes

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

Abstract

提供了一种OLED显示面板，包括基板、盖板以及多个辅助电极，基板包括衬底、驱动电路层、像素定义层、发光材料层及公共电极，在至少一个像素定义区内像素定义层远离驱动电路层的表面形成有凸起；在对应于每个形成有凸起的像素定义区内，辅助电极和公共电极有至少两个电性连接面。

Description

OLED显示面板 技术领域
本申请涉及显示技术领域，尤其涉及一种OLED显示面板。
 背景技术
在现有的顶发射结构的OLED（Organic Light Emitting Diode，有机发光二极管）器件中，通常在公共电极上方设置辅助电极，以减小公共电极阻抗，缓解IR-drop（电源压降）。
现有的OLED显示面板的结构如图1所示，包括对盒设置的基板100、盖板200以及形成于盖板200上的辅助电极300，基板100包括衬底110、驱动电路层120、像素定义层130、阳极140、发光功能层150、公共电极160，像素定义层130包括多个像素定义区1300，在对应于每个像素定义区1300内，公共电极160与辅助电极300有一个电性连接的面400，这种平面对平面的电性连接方式容易出现连接不良，使得辅助电极300未与公共电极160连接，不能起到减小公共电极160阻抗，降低IR-drop的作用。
因此，现有OLED显示面板存在公共电极和辅助电极连接不良的技术问题，需要改进。
 技术问题
本申请提供一种OLED显示面板，以缓解现有OLED显示面板中公共电极和辅助电极连接不良的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种OLED显示面板，包括对盒设置的基板、盖板以及形成于所述盖板靠近所述基板一侧的多个辅助电极，所述基板包括：
衬底；
驱动电路层，形成于所述衬底上；
像素定义层，形成于所述驱动电路层上，用于定义多个子像素区，所述像素定义层包括多个像素定义区，在至少一个像素定义区内，像素定义层远离所述驱动电路层的表面形成有凸起；
发光材料层，形成于所述像素定义层定义的子像素区内；
公共电极，形成于所述发光材料层和所述像素定义层上；
其中，所述多个辅助电极对应于所述多个像素定义区设置，在对应于每个形成有凸起的像素定义区内，所述辅助电极和所述公共电极有至少两个电性连接面。
在本申请的OLED显示面板中，在对应于每个形成有凸起的像素定义区内仅设置一个辅助电极。
在本申请的OLED显示面板中，所述辅助电极的截面形状为梯形。
在本申请的OLED显示面板中，所述辅助电极的截面形状为矩形。
在本申请的OLED显示面板中，在对应于每个形成有凸起的像素定义区内，至少设置有第一辅助电极和第二辅助电极，所述第一辅助电极和所述第二辅助电极均与所述盖板连接。
在本申请的OLED显示面板中，所述第一辅助电极的截面形状和所述第二辅助电极的截面形状相同。
在本申请的OLED显示面板中，所述第一辅助电极的截面形状和所述第二辅助电极的截面形状不同。
在本申请的OLED显示面板中，在对应于形成有凸起的像素定义区内，一部分对应每个像素定义区内仅设置一个辅助电极，另一部分对应每个像素定义区内至少设置有第一辅助电极和第二辅助电极，所述第一辅助电极和所述第二辅助电极均与所述盖板连接。
在本申请的OLED显示面板中，在所述至少一个像素定义区内，像素定义层一体成型。
在本申请的OLED显示面板中，在所述至少一个像素定义区内，像素定义层至少包括第一分像素定义层和第二分像素定义层，所述第一分像素定义层和所述第二分像素定义层均设置于所述驱动电路层上。
在本申请的OLED显示面板中，所述第一分像素定义层和所述第二分像素定义层远离所述驱动电路层的表面均为平面，所述第一分像素定义层的高度大于所述第二分像素定义层的高度。
在本申请的OLED显示面板中，所述第一分像素定义层和所述第二分像素定义层远离所述驱动电路层的表面均为平面且高度相等，所述第一分像素定义层和所述第二分像素定义层远离所述驱动电路层的表面在所述驱动电路层上的投影不连接。
在本申请的OLED显示面板中，在所述至少一个像素定义区内，所述第一分像素定义层和所述第二分像素定义层中的至少一个远离所述驱动电路层的表面形成有凸起。
在本申请的OLED显示面板中，每个分像素定义层中所有凸起的截面形状相同。
在本申请的OLED显示面板中，所述第一分像素定义层远离所述驱动电路层的表面上的凸起的截面形状，和所述第二分像素定义层远离所述驱动电路层的表面上的凸起的截面形状相同。
在本申请的OLED显示面板中，所述第一分像素定义层远离所述驱动电路层的表面上的凸起的截面形状，和所述第二分像素定义层远离所述驱动电路层的表面上的凸起的截面形状不同。
在本申请的OLED显示面板中，在所述至少一个像素定义区内，像素定义层至少包括第一分像素定义层和第二分像素定义层，所述第一分像素定义层设置于所述驱动电路层上，所述第二分像素定义层设置于所述第一分像素定义层上。
在本申请的OLED显示面板中，在形成有凸起的像素定义区内，像素定义层一部分为一体成型结构，另一部分至少包括第一分像素定义层和第二分像素定义层。
在本申请的OLED显示面板中，所述第一分像素定义层和所述第二分像素定义层均设置于所述驱动电路层上。
在本申请的OLED显示面板中，所述第一分像素定义层设置于所述驱动电路层上，所述第二分像素定义层设置于所述第一分像素定义层上。
 有益效果
本申请提供一种OLED显示面板，包括对盒设置的基板、盖板以及形成于所述盖板靠近所述基板一侧的多个辅助电极，所述基板包括衬底、驱动电路层、像素定义层、发光材料层以及公共电极，所述驱动电路层形成于所述衬底上；所述像素定义层形成于所述驱动电路层上，用于定义多个子像素区，所述像素定义层包括多个像素定义区，在至少一个像素定义区内，像素定义层远离所述驱动电路层的表面形成有凸起；所述发光材料层，形成于所述像素定义层定义的子像素区内；所述公共电极，形成于所述发光材料层和所述像素定义层上；其中，所述多个辅助电极对应于所述多个像素定义区设置，在对应于每个形成有凸起的像素定义区内，所述辅助电极和所述公共电极有至少两个电性连接面。通过在像素定义层远离驱动电路层的表面形成凸起，在对应于每个形成有凸起的像素定义区内，辅助电极和公共电极有至少两个电性连接面，从而提高了辅助电极和公共电极的连接良率，进而保证辅助电极能起到减小公共电极阻抗，降低IR-drop的作用。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，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为现有技术中的OLED显示面板的结构示意图；
图2为本申请实施例提供的OLED显示面板的第一种结构示意图；
图3为本申请实施例提供的OLED显示面板形成有凸起的像素定义层的结构示意图；
图4为本申请实施例提供的OLED显示面板的第二种结构示意图；
图5为本申请实施例提供的OLED显示面板的第三种结构示意图；
图6为本申请实施例提供的OLED显示面板的第四种结构示意图；
图7为本申请实施例提供的OLED显示面板的第五种结构示意图。
图8为本申请实施例提供的OLED显示面板的第六种结构示意图；
图9为本申请实施例提供的OLED显示面板的第七种结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请提供一种OLED显示面板，以缓解现有OLED显示面板中公共电极和辅助电极连接不良的技术问题。
如图2所示，为本申请实施例提供的OLED显示面板的第一种结构示意图。OLED显示面板包括对盒设置的基板10、盖板20以及形成于盖板20靠近基板10一侧的多个辅助电极30，其中基板10包括衬底11、驱动电路层12、像素定义层13、像素电极14、发光材料层15以及公共电极16。
衬底11通常为玻璃衬底，但不限于此，例如可以是柔性衬底。驱动电路层12形成于衬底11上，包括多个薄膜晶体管（图未示出），用于驱动OLED显示面板。
驱动电路层12上形成有像素定义层13，像素定义层13包括多个像素定义区1301，像素定义层13用于定义多个子像素区1302，子像素区1302形成于相邻两个像素定义区1301之间。在至少一个像素定义区1301内，像素定义层13远离驱动电路层12的表面103形成有凸起。
像素电极14形成于驱动电路层12上，且位于子像素区1302内，驱动电路层12内的薄膜晶体管的漏电极可电气性连接至像素电极14上。
发光材料层15形成于像素定义层13定义的子像素区1302内，公共电极16形成于发光材料层15和像素定义层13上。
辅助电极30设置于盖板20靠近基板10一侧，多个辅助电极30对应于多个像素定义区1301设置。
在一种实施例中，在对应于每个形成有凸起的像素定义区1301内仅设置一个辅助电极30，辅助电极30的截面形状可以是梯形、矩形或其他结构。
在盖板20与基板10压合时，在对应于每个形成有凸起的像素定义区1301内，辅助电极30和公共电极16有至少两个电性连接面，如图1所示，辅助电极30和公共电极16有第一电性连接面301和第二电性连接面302。
在一种实施例中，只有一部分像素定义区1301内的像素定义层13远离驱动电路层12的表面103上形成有凸起。
在一种实施例中，在所有的像素定义区1301内的像素定义层13远离驱动电路层12的表面103上全部形成有凸起。
在一种实施例中，在形成有凸起的像素定义区1301内，像素定义层13一体成型，像素定义层13的结构如图3所示。
如图3中的a和b所示，像素定义层13远离驱动电路层12的表面103包括一个凸起，凸起的截面可以为梯形、矩形或其他形状。
如图3中的c所示，像素定义层13远离驱动电路层12的表面103包括两个凸起，两个凸起之间形成有一凹面，凸起的截面可以为梯形、矩形或其他形状，两个凸起的形状、大小可以相等，也可以不相等。
如图3中的d所示，像素定义层13远离驱动电路层12的表面103包括三个凸起，三个凸起之间形成有两个凹面，凸起的截面可以为梯形、矩形或其他形状，三个凸起的形状、大小可以相等，也可以不相等，三个凸起可以等间距设置，也可不等间距设置。
当然，像素定义层13远离驱动电路层12的表面103的形状不限于此，还可以形成更多的凸起，凸起可以是直面，也可以是曲面。所有凸起的截面形状可以相等，也可以存在至少一个凸起与其他凸起的截面形状不同，所有凸起可以等间距设置，也可不等间距设置。
通过在像素定义层13远离驱动电路层12的表面103形成凸起，在对应于每个形成有凸起的像素定义区1301内，辅助电极30和公共电极16有至少两个电性连接面，当盖板20与基板10压合时，若其中一个电性连接面未实现电性连接，还有其他的电性连接面可以实现电性连接，相对于辅助电极30与公共电极16间仅设置一个电性连接面的结构，提高了辅助电极30和公共电极16的连接良率，进而保证辅助电极30能起到减小公共电极16阻抗，降低IR-drop的作用。
如图4所示，为本申请实施例提供的OLED显示面板的第二种结构示意图，OLED显示面板包括对盒设置的基板10、盖板20以及形成于盖板20靠近基板10一侧的多个辅助电极30，其中基板10包括衬底11、驱动电路层12、像素定义层13、像素电极14、发光材料层15以及公共电极16。
与图2中的结构不同之处在于，在对应于每个形成有凸起的像素定义区1301内，辅助电极30至少包括有第一辅助电极31和第二辅助电极32，第一辅助电极31和第二辅助电极32均与盖板20连接，第一辅助电极31的截面形状和第二辅助电极32的截面形状可以相同，也可以不同。
在盖板20与基板10压合时，在对应于每个形成有凸起的像素定义区1301内，辅助电极30和公共电极16有四个电性连接面，分别是辅助电极31和公共电极16间的第一电性连接面301、第二电性连接面302，以及辅助电极32和公共电极16间的第三电性连接面303、第四电性连接面304。
由于辅助电极30和公共电极16有四个电性连接面，若其中一个电性连接面未实现电性连接，还有其他的电性连接面可以实现电性连接，相对于辅助电极30与公共电极16间仅设置一个电性连接面的结构，提高了辅助电极30和公共电极16的连接良率，进而保证辅助电极30能起到减小公共电极16阻抗，降低IR-drop的作用。
如图5所示，为本申请实施例提供的OLED显示面板的第三种结构示意图，OLED显示面板包括对盒设置的基板10、盖板20以及形成于盖板20靠近基板10一侧的多个辅助电极30，其中基板10包括衬底11、驱动电路层12、像素定义层13、像素电极14、发光材料层15以及公共电极16。
在每个形成有凸起的像素定义区1301内，像素定义层13至少包括第一分像素定义层131和第二分像素定义层132，第一分像素定义层131和第二分像素定义层132均设置于驱动电路层12上。
在一种实施例中，第一分像素定义层131远离驱动电路层12的表面1311和第二分像素定义层132远离驱动电路层12的表面1321均为平面，第一分像素定义层131的高度大于第二分像素定义层132的高度。由于第一分像素定义层131和第二分像素定义层132的高度不同，两者组成的像素定义层13远离驱动电路层12的表面形成凸起。
在一种实施例中，在对应于每个形成有凸起的像素定义区1301内仅设置一个辅助电极30，辅助电极30的截面形状可以是梯形、矩形或其他结构。当盖板20与基板10压合时，辅助电极30和公共电极16有第一电性连接面301和第二电性连接面302。
在一种实施例中，在对应于每个形成有凸起的像素定义区1301内，辅助电极30至少包括有第一辅助电极31和第二辅助电极32，第一辅助电极31和第二辅助电极32均与盖板20连接，第一辅助电极31的截面形状和第二辅助电极32的截面形状可以相同，也可以不同。在盖板20与基板10压合时，在对应于每个形成有凸起的像素定义区1301内，辅助电极30和公共电极16有更多的电性连接面。
由于辅助电极30和公共电极16有至少两个电性连接面，若其中一个电性连接面未实现电性连接，还有其他的电性连接面可以实现电性连接，相对于辅助电极30与公共电极16间仅设置一个电性连接面的结构，提高了辅助电极30和公共电极16的连接良率，进而保证辅助电极30能起到减小公共电极16阻抗，降低IR-drop的作用。
如图6所示，为本申请实施例提供的OLED显示面板的第四种结构示意图，OLED显示面板包括对盒设置的基板10、盖板20以及形成于盖板20靠近基板10一侧的多个辅助电极30，其中基板10包括衬底11、驱动电路层12、像素定义层13、像素电极14、发光材料层15以及公共电极16。
在每个形成有凸起的像素定义区1301内，像素定义层13至少包括第一分像素定义层131和第二分像素定义层132，第一分像素定义层131和第二分像素定义层132均设置于驱动电路层12上。
第一分像素定义层131远离驱动电路层12的表面1311和第二分像素定义层132远离驱动电路层12的表面1321均为平面，且第一分像素定义层131的高度与第二分像素定义层132的高度相等，第一分像素定义层131远离驱动电路层12的表面1311和第二分像素定义层132远离驱动电路层12的表面1321在驱动电路层12上的投影不连接，即两者组成的像素定义层13远离驱动电路层12的表面形成凸起。
在对应于每个形成有凸起的像素定义区1301内，可以设置一个或多个辅助电极30。在本实施例中，仅设置有一个辅助电极30，当盖板20与基板10压合时，辅助电极30和公共电极16有第一电性连接面301和第二电性连接面302，当辅助电极30的数量增多时，电性连接面的数量也随之增多。
由于辅助电极30和公共电极16有至少两个电性连接面，若其中一个电性连接面未实现电性连接，还有其他的电性连接面可以实现电性连接，相对于辅助电极30与公共电极16间仅设置一个电性连接面的结构，提高了辅助电极30和公共电极16的连接良率，进而保证辅助电极30能起到减小公共电极16阻抗，降低IR-drop的作用。
如图7所示，为本申请实施例提供的OLED显示面板的第五种结构示意图，OLED显示面板包括对盒设置的基板10、盖板20以及形成于盖板20靠近基板10一侧的多个辅助电极30，其中基板10包括衬底11、驱动电路层12、像素定义层13、像素电极14、发光材料层15以及公共电极16。
在每个形成有凸起的像素定义区1301内，像素定义层13至少包括第一分像素定义层131和第二分像素定义层132，第一分像素定义层131和第二分像素定义层132均设置于驱动电路层12上。
第一分像素定义层131远离驱动电路层12的表面1311为平面，第二分像素定义层132远离驱动电路层12的表面1321形成有凸起。
第二分像素定义层132远离驱动电路层12的表面1321包括一个凸起或多个凸起，凸起的截面可以为梯形、矩形或其他形状，凸起可以是直面，也可以是曲面，所有凸起的截面形状可以相等，也可以存在至少一个凸起与其他凸起的截面形状不同，所有凸起可以等间距设置，也可不等间距设置。
在对应于每个形成有凸起的像素定义区1301内，可以设置一个或多个辅助电极30。在本实施例中，仅设置有一个辅助电极30，当盖板20与基板10压合时，辅助电极30和公共电极16有第一电性连接面301和第二电性连接面302，当辅助电极30的数量增多时，电性连接面的数量也随之增多。
由于辅助电极30和公共电极16有至少两个电性连接面，若其中一个电性连接面未实现电性连接，还有其他的电性连接面可以实现电性连接，相对于辅助电极30与公共电极16间仅设置一个电性连接面的结构，提高了辅助电极30和公共电极16的连接良率，进而保证辅助电极30能起到减小公共电极16阻抗，降低IR-drop的作用。
如图8所示，为本申请实施例提供的OLED显示面板的第六种结构示意图，OLED显示面板包括对盒设置的基板10、盖板20以及形成于盖板20靠近基板10一侧的多个辅助电极30，其中基板10包括衬底11、驱动电路层12、像素定义层13、像素电极14、发光材料层15以及公共电极16。
在每个形成有凸起的像素定义区1301内，像素定义层13至少包括第一分像素定义层131和第二分像素定义层132，第一分像素定义层131和第二分像素定义层132均设置于驱动电路层12上。
第一分像素定义层131远离驱动电路层12的表面1311和第二分像素定义层132远离驱动电路层12的表面1321均形成有凸起。凸起的截面可以为梯形、矩形或其他形状，凸起可以是直面，也可以是曲面，所有凸起可以等间距设置，也可不等间距设置。
第一分像素定义层131远离驱动电路层12的表面1311上所有凸起的截面形状可以相同，也可以存在至少一个凸起与其他凸起的截面形状不同，第二分像素定义层132远离驱动电路层12的表面1321上所有凸起的截面形状可以相同，也可以存在至少一个凸起与其他凸起的截面形状不同。
当第一分像素定义层131远离驱动电路层12的表面1311上所有凸起的截面形状相同，第二分像素定义层132远离驱动电路层12的表面1321上所有凸起的截面形状也相同时，两个分像素定义层中的所有凸起的截面形状可以相同，也可以不相同。
在对应于每个形成有凸起的像素定义区1301内，可以设置一个或多个辅助电极30。在本实施例中，仅设置有一个辅助电极30，当盖板20与基板10压合时，辅助电极30和公共电极16有第一电性连接面301和第二电性连接面302，当辅助电极30的数量增多时，电性连接面的数量也随之增多。
由于辅助电极30和公共电极16有至少两个电性连接面，若其中一个电性连接面未实现电性连接，还有其他的电性连接面可以实现电性连接，相对于辅助电极30与公共电极16间仅设置一个电性连接面的结构，提高了辅助电极30和公共电极16的连接良率，进而保证辅助电极30能起到减小公共电极16阻抗，降低IR-drop的作用。
如图9所示，为本申请实施例提供的OLED显示面板的第七种结构示意图，OLED显示面板包括对盒设置的基板10、盖板20以及形成于盖板20靠近基板10一侧的多个辅助电极30，其中基板10包括衬底11、驱动电路层12、像素定义层13、像素电极14、发光材料层15以及公共电极16。
在每个形成有凸起的像素定义区1301内，像素定义层13至少包括第一分像素定义层131和第二分像素定义层132，第一分像素定义层131设置于驱动电路层12上，第二分像素定义层132设置于第一分像素定义层131上，第一分像素定义层131和第二分像素定义层132的层叠结构使得像素定义层13远离驱动电路层12的一侧形成凸起。
在对应于每个形成有凸起的像素定义区1301内，可以设置一个或多个辅助电极30。在本实施例中，仅设置有一个辅助电极30，当盖板20与基板10压合时，辅助电极30和公共电极16有第一电性连接面301和第二电性连接面302，当辅助电极30的数量增多时，电性连接面的数量也随之增多。
由于辅助电极30和公共电极16有至少两个电性连接面，若其中一个电性连接面未实现电性连接，还有其他的电性连接面可以实现电性连接，相对于辅助电极30与公共电极16间仅设置一个电性连接面的结构，提高了辅助电极30和公共电极16的连接良率，进而保证辅助电极30能起到减小公共电极16阻抗，降低IR-drop的作用。
需要说明的是，上述任一实施例中的OLED显示面板，在形成有凸起的像素定义区1301内，像素定义层13不限于第一分像素定义层131和第二分像素定义层132，还包括更多分像素定义层，各分像素定义层可以连接、也可以不连接，可以是层叠设置结构，也可以均设置在驱动电路层12上。像素定义层13可以全部为一体成型，也可以全部为设置在驱动电路层12上的至少两个分像素定义层，还可以一部分为一体成型结构，另一部分为设置在驱动电路层12上的至少两个分像素定义层。
本申请还提供一种OLED显示装置，包括上述任一实施例中的OLED显示面板。
根据上述实施例可知：
本申请提供一种OLED显示面板，包括对盒设置的基板、盖板以及形成于盖板靠近基板一侧的多个辅助电极，基板包括衬底、驱动电路层、像素定义层、发光材料层及公共电极，驱动电路层形成于衬底上；像素定义层形成于驱动电路层上，用于定义多个子像素区，像素定义层包括多个像素定义区，在至少一个像素定义区内，像素定义层远离驱动电路层的表面形成有凸起；发光材料层形成于像素定义层定义的子像素区内；公共电极形成于发光材料层和像素定义层上；多个辅助电极对应于多个像素定义区设置，在对应于每个形成有凸起的像素定义区内，辅助电极和公共电极有至少两个电性连接面。通过在像素定义层远离驱动电路层的表面形成凸起，在对应于每个形成有凸起的像素定义区内，辅助电极和公共电极有至少两个电性连接面，从而提高了辅助电极和公共电极的连接良率，进而保证辅助电极能起到减小公共电极阻抗，降低IR-drop的作用。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种OLED显示面板，其包括对盒设置的基板、盖板以及形成于所述盖板靠近所述基板一侧的多个辅助电极，所述基板包括：
    衬底；
    驱动电路层，形成于所述衬底上；
    像素定义层，形成于所述驱动电路层上，用于定义多个子像素区，所述像素定义层包括多个像素定义区，在至少一个像素定义区内，像素定义层远离所述驱动电路层的表面形成有凸起；
    发光材料层，形成于所述像素定义层定义的子像素区内；
    公共电极，形成于所述发光材料层和所述像素定义层上；
    其中，所述多个辅助电极对应于所述多个像素定义区设置，在对应于每个形成有凸起的像素定义区内，所述辅助电极和所述公共电极有至少两个电性连接面。
  2. 如权利要求1所述的OLED显示面板，其中，在对应于每个形成有凸起的像素定义区内仅设置一个辅助电极。
  3. 如权利要求2所述的OLED显示面板，其中，所述辅助电极的截面形状为梯形。
  4. 如权利要求2所述的OLED显示面板，其中，所述辅助电极的截面形状为矩形。
  5. 如权利要求1所述的OLED显示面板，其中，在对应于每个形成有凸起的像素定义区内，至少设置有第一辅助电极和第二辅助电极，所述第一辅助电极和所述第二辅助电极均与所述盖板连接。
  6. 如权利要求5所述的OLED显示面板，其中，所述第一辅助电极的截面形状和所述第二辅助电极的截面形状相同。
  7. 如权利要求5所述的OLED显示面板，其中，所述第一辅助电极的截面形状和所述第二辅助电极的截面形状不同。
  8. 如权利要求1所述的OLED显示面板，其中，在对应于形成有凸起的像素定义区内，一部分对应每个像素定义区内仅设置一个辅助电极，另一部分对应每个像素定义区内至少设置有第一辅助电极和第二辅助电极，所述第一辅助电极和所述第二辅助电极均与所述盖板连接。
  9. 如权利要求1所述的OLED显示面板，其中，在所述至少一个像素定义区内，像素定义层一体成型。
  10. 如权利要求1所述的OLED显示面板，其中，在所述至少一个像素定义区内，像素定义层至少包括第一分像素定义层和第二分像素定义层，所述第一分像素定义层和所述第二分像素定义层均设置于所述驱动电路层上。
  11. 如权利要求10所述的OLED显示面板，其中，所述第一分像素定义层和所述第二分像素定义层远离所述驱动电路层的表面均为平面，所述第一分像素定义层的高度大于所述第二分像素定义层的高度。
  12. 如权利要求10所述的OLED显示面板，其中，所述第一分像素定义层和所述第二分像素定义层远离所述驱动电路层的表面均为平面且高度相等，所述第一分像素定义层和所述第二分像素定义层远离所述驱动电路层的表面在所述驱动电路层上的投影不连接。
  13. 如权利要求10所述的OLED显示面板，其中，在所述至少一个像素定义区内，所述第一分像素定义层和所述第二分像素定义层中的至少一个远离所述驱动电路层的表面形成有凸起。
  14. 如权利要求13所述的OLED显示面板，其中，每个分像素定义层中所有凸起的截面形状相同。
  15. 如权利要求14所述的OLED显示面板，其中，所述第一分像素定义层远离所述驱动电路层的表面上的凸起的截面形状，和所述第二分像素定义层远离所述驱动电路层的表面上的凸起的截面形状相同。
  16. 如权利要求14所述的OLED显示面板，其中，所述第一分像素定义层远离所述驱动电路层的表面上的凸起的截面形状，和所述第二分像素定义层远离所述驱动电路层的表面上的凸起的截面形状不同。
  17. 如权利要求1所述的OLED显示面板，其中，在所述至少一个像素定义区内，像素定义层至少包括第一分像素定义层和第二分像素定义层，所述第一分像素定义层设置于所述驱动电路层上，所述第二分像素定义层设置于所述第一分像素定义层上。
  18. 如权利要求1所述的OLED显示面板，其中，在形成有凸起的像素定义区内，像素定义层一部分为一体成型结构，另一部分至少包括第一分像素定义层和第二分像素定义层。
  19. 如权利要求18所述的OLED显示面板，其中，所述第一分像素定义层和所述第二分像素定义层均设置于所述驱动电路层上。
  20. 如权利要求18所述的OLED显示面板，其中，所述第一分像素定义层设置于所述驱动电路层上，所述第二分像素定义层设置于所述第一分像素定义层上。
PCT/CN2019/099302 2019-05-05 2019-08-05 Oled显示面板 Ceased WO2020224070A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/496,958 US11316126B2 (en) 2019-05-05 2019-08-05 Organic light-emitting diode display panel having at least two connection surfaces between auxiliary electrode and common electrode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910366398.3A CN110120408B (zh) 2019-05-05 2019-05-05 Oled显示面板
CN201910366398.3 2019-05-05

Publications (1)

Publication Number Publication Date
WO2020224070A1 true WO2020224070A1 (zh) 2020-11-12

Family

ID=67521830

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/099302 Ceased WO2020224070A1 (zh) 2019-05-05 2019-08-05 Oled显示面板

Country Status (3)

Country Link
US (1) US11316126B2 (zh)
CN (1) CN110120408B (zh)
WO (1) WO2020224070A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102679426B1 (ko) * 2019-01-17 2024-07-01 삼성디스플레이 주식회사 유기 발광 표시 장치 및 이의 제조 방법
CN112133734B (zh) * 2020-09-29 2022-08-30 湖北长江新型显示产业创新中心有限公司 显示面板及显示装置
KR20220118580A (ko) * 2021-02-18 2022-08-26 삼성디스플레이 주식회사 표시 장치 및 표시 장치의 제조 방법
CN114975749B (zh) * 2022-05-25 2024-08-06 武汉华星光电半导体显示技术有限公司 显示装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101728419A (zh) * 2008-10-17 2010-06-09 三星移动显示器株式会社 有机发光显示器
CN104022139A (zh) * 2014-05-30 2014-09-03 京东方科技集团股份有限公司 一种有机电致发光显示面板及显示装置
US20160035803A1 (en) * 2014-07-29 2016-02-04 Lg Display Co., Ltd. Organic light emitting display device and method for manufacturing the same
CN105845712A (zh) * 2016-05-19 2016-08-10 上海天马有机发光显示技术有限公司 一种显示面板及其制作方法
CN106803547A (zh) * 2017-02-15 2017-06-06 深圳市华星光电技术有限公司 顶发射型oled显示器件的制作方法及结构
CN107331690A (zh) * 2017-08-18 2017-11-07 深圳市华星光电半导体显示技术有限公司 有机电致发光显示基板及有机电致发光显示装置
CN107394060A (zh) * 2017-09-07 2017-11-24 京东方科技集团股份有限公司 显示面板、显示装置及制备显示面板的方法
CN107644894A (zh) * 2017-09-18 2018-01-30 京东方科技集团股份有限公司 一种有机电致发光器件、其制备方法及显示装置
CN108011052A (zh) * 2018-01-26 2018-05-08 上海天马有机发光显示技术有限公司 一种显示面板和显示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2139041B1 (en) * 2008-06-24 2015-08-19 LG Display Co., Ltd. Luminescence display panel and method for fabricating the same
CN105609660B (zh) * 2016-03-22 2017-11-24 京东方科技集团股份有限公司 一种oled显示面板及其封装方法、显示装置
KR102614612B1 (ko) * 2016-10-25 2023-12-19 엘지디스플레이 주식회사 관통홀을 통해 기판의 앞면과 배면을 연결한 평판 표시장치
KR102461360B1 (ko) * 2017-12-15 2022-11-02 삼성디스플레이 주식회사 표시 장치 및 그의 제조 방법
CN108511507B (zh) 2018-06-07 2021-02-23 京东方科技集团股份有限公司 一种显示面板及显示装置
US11309355B2 (en) * 2019-04-26 2022-04-19 Innolux Corporation Display device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101728419A (zh) * 2008-10-17 2010-06-09 三星移动显示器株式会社 有机发光显示器
CN104022139A (zh) * 2014-05-30 2014-09-03 京东方科技集团股份有限公司 一种有机电致发光显示面板及显示装置
US20160035803A1 (en) * 2014-07-29 2016-02-04 Lg Display Co., Ltd. Organic light emitting display device and method for manufacturing the same
CN105845712A (zh) * 2016-05-19 2016-08-10 上海天马有机发光显示技术有限公司 一种显示面板及其制作方法
CN106803547A (zh) * 2017-02-15 2017-06-06 深圳市华星光电技术有限公司 顶发射型oled显示器件的制作方法及结构
CN107331690A (zh) * 2017-08-18 2017-11-07 深圳市华星光电半导体显示技术有限公司 有机电致发光显示基板及有机电致发光显示装置
CN107394060A (zh) * 2017-09-07 2017-11-24 京东方科技集团股份有限公司 显示面板、显示装置及制备显示面板的方法
CN107644894A (zh) * 2017-09-18 2018-01-30 京东方科技集团股份有限公司 一种有机电致发光器件、其制备方法及显示装置
CN108011052A (zh) * 2018-01-26 2018-05-08 上海天马有机发光显示技术有限公司 一种显示面板和显示装置

Also Published As

Publication number Publication date
US11316126B2 (en) 2022-04-26
CN110120408A (zh) 2019-08-13
US20210408438A1 (en) 2021-12-30
CN110120408B (zh) 2021-12-03

Similar Documents

Publication Publication Date Title
CN114361236B (zh) 电致发光显示面板及显示装置
US12200964B2 (en) Display panel comprising black matrix and color resists along with angled low-refractivity layer and display device comprising the same
US9716131B2 (en) AMOLED backplane structure and manufacturing method thereof
CN107978619B (zh) 使用通孔使基板的前侧连接至后侧的显示装置
US10424625B2 (en) Organic light emitting diode display panel and organic light emitting diode display device containing the same
CN104600200B (zh) 一种阵列基板及显示面板
CN110828535A (zh) 一种阵列基板、显示面板和显示装置
WO2020047912A1 (zh) Amoled显示面板及相应的显示装置
WO2020224070A1 (zh) Oled显示面板
CN107808892A (zh) 显示设备
WO2023103034A1 (zh) 显示面板
US11508920B2 (en) Display device and flexible OLED panel thereof
CN114628481A (zh) 显示面板及显示装置
CN108336120A (zh) 一种阵列基板、显示面板及显示装置
CN110582850B (zh) 有机发光二极管显示面板及其制造方法、有机发光二极管对置基板
WO2020220497A1 (zh) Oled显示面板和oled显示面板的制备方法
WO2020206737A1 (zh) 显示面板和电子设备
WO2024093054A1 (zh) 阵列基板及显示面板
CN115152027A (zh) 阵列基板和显示设备
WO2020118920A1 (zh) 有机发光二极管阵列基板及其制造方法
CN117715466A (zh) Oled显示面板、显示装置及掩膜板
WO2022170479A1 (zh) 显示基板及其制作方法、显示装置
CN112968039A (zh) 一种显示屏及显示装置
US20250143093A1 (en) Display device and motherboard for display device
US12167621B2 (en) Display substrate, method of manufacturing the same and display device

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: 19927726

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: 19927726

Country of ref document: EP

Kind code of ref document: A1