WO2020062801A1 - 显示装置及其柔性oled面板 - Google Patents

显示装置及其柔性oled面板 Download PDF

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Publication number
WO2020062801A1
WO2020062801A1 PCT/CN2019/078916 CN2019078916W WO2020062801A1 WO 2020062801 A1 WO2020062801 A1 WO 2020062801A1 CN 2019078916 W CN2019078916 W CN 2019078916W WO 2020062801 A1 WO2020062801 A1 WO 2020062801A1
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Prior art keywords
pixel unit
oled panel
flexible oled
anode
panel according
Prior art date
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Ceased
Application number
PCT/CN2019/078916
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English (en)
French (fr)
Inventor
王志祥
王梦凡
李金库
沈阳
康梦华
叶訢
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Kunshan Govisionox Optoelectronics Co Ltd
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Kunshan Govisionox Optoelectronics Co Ltd
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Application filed by Kunshan Govisionox Optoelectronics Co Ltd filed Critical Kunshan Govisionox Optoelectronics Co Ltd
Priority to US16/838,342 priority Critical patent/US11508920B2/en
Publication of WO2020062801A1 publication Critical patent/WO2020062801A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data 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
    • H10K50/81—Anodes
    • H10K50/814—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
    • 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
    • H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/02—Flexible displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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
    • H10K2102/311—Flexible OLED
    • 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
    • H10K59/8051—Anodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • the present application relates to the technical field of organic light emitting diode OLED display devices, and in particular, to a display device and a flexible OLED panel thereof.
  • OLEDs Organic Light-Emitting Diodes
  • OLEDs have the advantages of low power consumption and good display brightness compared with other display devices because of their self-emitting characteristics. It is also easier to achieve a bendable display with a smaller bending radius based on an OLED display on a flexible substrate. Therefore, the fabrication of OLED display panels based on flexible substrates has attracted widespread attention, and bending life has also become one of the items that must be verified for the reliability of flexible OLED display panels.
  • the purpose of the present application is to provide a display device and a flexible OLED panel thereof, which can improve the buffering of the stress on the anode during the bending process of the OLED display panel and improve the reliability of the OLED display panel.
  • a first aspect of the present application provides a flexible OLED panel.
  • the flexible OLED panel includes a flexible substrate and a plurality of OLED light-emitting devices located on the flexible substrate.
  • the plurality of OLED light emitting devices include a plurality of pixel circuits and a functional layer disposed above the plurality of pixel circuits, and the functional layer includes a plurality of anodes.
  • the flexible OLED panel includes a plurality of pixel unit regions and a plurality of non-pixel unit regions. The pixel unit regions are arranged in an array, and adjacent pixel unit regions are non-pixel unit regions. At least one anode is connected to the pixel unit region.
  • the plurality of transistors in the pixel circuit are located in one of the pixel unit regions, and the transistors in adjacent pixel unit regions are connected by an electrical connection line that passes through at least one of the non-pixel unit regions; the electrical connection A portion of the line located in the non-pixel unit region is covered by an organic film layer.
  • the non-pixel unit region includes a part of an electrical connection line and the organic film layer.
  • the electrical connection lines include scanning lines arranged in rows, data lines arranged in columns, and power lines.
  • the plurality of anodes are located above the plurality of transistors, and the plurality of transistors include a switching transistor and a driving transistor, and all of at least one of the switching transistor and the driving transistor falls on a corresponding one. Orthographic projection of the anode.
  • the plurality of anodes are located above the plurality of transistors, and the plurality of transistors include a switching transistor and a driving transistor, and a portion of at least one of the switching transistor and the driving transistor falls on a corresponding one Orthographic projection of the anode.
  • an inorganic support layer is provided on a lower surface of at least one of the plurality of anodes.
  • one of the pixel unit regions includes a plurality of sub-pixels, and each of the plurality of sub-pixels corresponds to an anode; an inorganic support layer on the lower surface of the anode corresponding to each of the sub-pixels is integrally connected.
  • one of the pixel unit regions includes a plurality of subpixels, and the plurality of subpixels are distributed around a center; each of the plurality of subpixels corresponds to a pixel circuit and an anode, and the anode is located corresponding to the pixel circuit.
  • the plurality of transistors of the pixel circuit include a switching transistor and a driving transistor, the anode is connected to the drain of the driving transistor through a conductive plug, and the conductive plug connected to the anode faces the center Gather.
  • the plurality of sub-pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the red sub-pixel, the green sub-pixel, and the blue sub-pixel are distributed in a triangle, and the conductive plug faces the triangle. Gathered in the center.
  • a film layer is provided between the anode and the transistor, and the conductive plug is formed in the film layer.
  • the film layer is at least one of an organic film layer and an inorganic film layer.
  • the material of the inorganic supporting layer includes at least one of silicon dioxide, silicon nitride, and silicon oxynitride.
  • the pixel unit region includes an inorganic material layer, the inorganic material layer includes at least one of silicon nitride, silicon oxynitride, and silicon oxide, and the inorganic material layer forms at least one layer.
  • a second aspect of the present application further provides a display device, including the flexible OLED panel described in the first aspect.
  • the beneficial effect of the present application is that, by providing a pixel unit region and a non-pixel unit region on a flexible substrate, the anode and the transistor having multiple layers of inorganic materials in the array pixel circuit are concentratedly disposed in the pixel unit by providing a rigid and poorly flexible anode.
  • Region, the non-pixel unit region is basically an organic film layer except that the electrical connection lines between the transistors connecting adjacent pixel unit regions pass through.
  • the advantage is that by providing concentrated inorganic materials with strong rigidity and poor flexibility, the non-pixel unit area with less inorganic material is provided, so that the non-pixel unit area is much more flexible than the pixel unit area.
  • the regions are arranged alternately. In this way, when the flexible OLED panel is bent, the non-pixel unit region with good flexibility is preferentially bent, thereby reducing the risk of anode breakage in the pixel unit region and improving the overall flexibility of the flexible OLED panel.
  • the non-pixel unit region only has an electrical connection line and an organic film layer. Minimizing the inorganic film layer in the pixel unit area can improve the flexibility of the non-pixel unit area, that is, the bending performance.
  • the electrical connection lines include scanning lines arranged in rows, data lines arranged in columns, and power lines. In other alternatives, the electrical connection line may also include other control lines.
  • the anode is located above the transistor, and the transistor includes a switching transistor and a driving transistor, and all or a part of the switching transistor and / or the driving transistor falls within an orthographic projection of the anode.
  • Increasing the projection overlap area of the anode and the transistor can increase the area of the non-pixel unit area that can be provided, and improve the overall bending performance of the flexible OLED panel.
  • the lower surface of the anode has an inorganic support layer.
  • the inorganic support layer can enhance the rigidity and reduce the flexibility of the pixel unit area, and further increase the contrast between the rigidity and flexibility of the pixel unit area and the non-pixel unit area.
  • the flexible OLED panel is bent, it is more beneficial for the non-pixel unit area to be bent first.
  • the pixel unit region has several sub-pixels, and each sub-pixel is distributed around a center; each sub-pixel corresponds to a pixel circuit and an anode, and each anode is located above a transistor of the corresponding pixel circuit.
  • the transistor includes a switching transistor and a driving transistor.
  • the anode is connected to the drain of the driving transistor through a conductive plug, and the conductive plugs connected to the anode of each sub-pixel are gathered toward the center. Gathering and distributing the conductive plugs of each pixel is also a way to enhance the rigidity and reduce the flexibility of the pixel unit area.
  • FIG. 1 is a partial structural schematic diagram of a flexible OLED panel in an embodiment of the present application
  • FIG. 2 is a schematic structural view of the cross-sectional structure taken along line AA in FIG. 1 after an anode is added and displayed;
  • FIG. 3 is a schematic structural diagram of a pixel unit region of a flexible OLED panel in another embodiment of the present application.
  • FIG. 4 is a schematic structural view of the cross-sectional structure shown in FIG. 3 after an anode is added;
  • FIG. 5 is a schematic cross-sectional structure diagram of a flexible OLED panel in still another embodiment of the present application.
  • FIG. 6 is a schematic cross-sectional structure diagram of a flexible OLED panel in another embodiment of the present application.
  • OLED light-emitting device 12 Array pixel circuit 121
  • Transistor 1211 Anode 122a
  • the anode is easily damaged by tension and pressure, resulting in cracks or fractures.
  • transparent conductive oxides such as Indium Tin Oxide, ITO
  • ITO Indium Tin Oxide
  • ITO Indium Tin Oxide
  • TFT Thin Film Transistor
  • the present application provides a display device and its flexible OLED panel to improve the bending performance so as to solve the above technical problems.
  • FIG. 1 is a partial structural schematic diagram of a flexible OLED panel in an embodiment of the present application.
  • FIG. 2 is a schematic view of the structure of the anode structure shown in FIG. 1 along the line AA.
  • the flexible OLED panel 1 includes a flexible substrate 11 and an OLED light-emitting device 12 on the flexible substrate 11.
  • the OLED light emitting device 12 includes a pixel circuit 121 and a functional layer (not shown) provided above the pixel circuit 121.
  • the pixel circuit 121 includes a plurality of transistors 1211, and the functional layers include an anode 122a, an OLED light-emitting layer (not shown), and a cathode (not shown) stacked from bottom to top.
  • the pixel circuit 121 may be an array circuit.
  • the flexible substrate 11 may be a solid flexible substrate.
  • the flexible OLED panel 1 is divided into pixel unit regions 11a and non-pixel unit regions 11b, and the pixel unit regions 11a are arranged in an array. Between the adjacent pixel unit regions 11a is a non-pixel unit region 11b.
  • the anode 122a and the transistor 1211 are located in the pixel unit region 11a, and the electrical connection line between the transistors 1211 of the adjacent pixel unit region 11a passes through the non-pixel unit region 11b; Wrapped.
  • the material of the solid flexible substrate 11 may be polyimide, polyethylene naphthalate, polyethylene terephthalate, polyarylate, polycarbonate, polyethersulfone, and polyetherimide. At least one.
  • the pixel unit region 11 a may further include an inorganic material layer 14.
  • the inorganic material layer 14 may be at least one of silicon nitride, silicon oxynitride, and silicon oxide, forming one, two, or multiple layers.
  • the inorganic material layer 14 is silicon nitride or silicon oxynitride
  • the inorganic material layer 14 can be used as a passivation layer to prevent external moisture and oxygen from diffusing upward from the solid flexible substrate 11.
  • the inorganic material layer 14 is silicon oxide
  • the inorganic material layer 14 can serve as an adhesion layer for improving the adhesion between the solid flexible substrate 11 and the inorganic material in the array-type pixel circuit 121 provided subsequently thereon. Prevent peeling.
  • the array pixel circuit 121 of the OLED light emitting device 12 may include a plurality of thin film transistors 1211 and a capacitor (not shown).
  • the thin film transistor 1211 is a switching transistor and a driving transistor.
  • the drain of the driving transistor is connected to the anode 122a in the OLED functional layer through the conductive plug 15 to facilitate hole injection.
  • the cathode in the OLED functional layer is served by a common electrode (not shown) above.
  • the array pixel circuit 121 may further include an electrical connection line (not shown) for connecting the transistor 1211 of the adjacent pixel unit region 11 a.
  • the electrical connection lines may include scan lines 1212 arranged in rows, data lines 1213 arranged in columns, and power lines 1214.
  • the data line 1213 and the power line 1214 may be located on the same layer, but the data line 1213, the power line 1214, and the scan line 1212 are on different layers.
  • the working process of the array pixel circuit 121 is as follows: the gate of the switching transistor is electrically connected to the scanning line 1212, the source of the switching transistor is connected to the data line 1213, and when the scanning signal of the scanning line 1212 is valid, the switching transistor is turned on and the data is The electric signal in the line 1213 is provided to the driving transistor, so that the driving transistor is turned on, and the voltage signal in the power line 1214 is provided to the anode 122a.
  • a potential difference is formed between the anode 122a and the cathode, and the holes of the anode 122a and the electrons of the cathode are combined to emit light in the light-emitting layer, thereby achieving a display function.
  • the capacitance between the drain of the switching transistor and the source of the driving transistor can provide a stable turn-on voltage for the gate of the driving transistor.
  • Each pixel unit region may include several sub-pixels, such as a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Each sub-pixel corresponds to a pixel circuit.
  • Each pixel unit region 11 a shown in FIG. 1 includes three sub-pixels, and the three sub-pixels share a data line 1213 and a power line 1214. In other embodiments, data lines 1213 and power lines 1214 may be connected between the sub-pixels.
  • all or part of the switching transistor and / or the driving transistor may fall within the orthographic projection of the anode 122 a.
  • the overlapping area between the anode 122a and the projection of the transistor 1211 is increased, so that the area of the non-pixel unit region 11b that can be provided can be increased.
  • the transistor 1211 in the array pixel circuit 121 may include other transistors in addition to the switching transistor and the driving transistor; the electrical connection lines between the transistors 1211 in the adjacent pixel unit area 11a are in addition to the scanning lines 1212 arranged in rows.
  • the data lines 1213 and the power supply lines 1214 arranged in columns may also have other control lines.
  • the specific structure of the array pixel circuit 121 is not limited in this application.
  • the non-pixel unit region 11 b may be an organic film layer 13 except for the scanning lines 1212 arranged in rows and the data lines 1213 and power lines 1214 arranged in columns.
  • the organic film layer 13 can improve the flexibility of the non-pixel unit region 11b.
  • the material of the organic film layer 13 may be polyimide, polyethylene naphthalate, polyethylene terephthalate, polyarylate, polycarbonate, polyethersulfone, and polyetherimide. At least one.
  • an organic film layer 13 may be provided between the anode 122 a and the transistor 121, and a conductive plug 15 is formed in the organic film layer 13.
  • an inorganic film layer such as silicon dioxide, may be provided between the anode 122a and the transistor 121.
  • the inorganic film layer is equivalent to a dielectric layer, and the conductive plug 15 is formed in the dielectric layer.
  • the encapsulation layer may be further provided on the OLED light emitting device 12.
  • the encapsulation layer may be a multilayer in a thin film encapsulation (TFE), and the multilayer is, for example, a three-layer structure of silicon nitride, an organic layer, and a silicon nitride. It can also be a laminate using a combination of several organic and inorganic materials, which is not limited in this application.
  • the flexible OLED panel 1 is divided into a pixel unit region 11a and a non-pixel unit region 11b, and the anode 122a having high rigidity and poor flexibility and the transistor 1211 including a multilayer inorganic material in the array pixel circuit 121
  • the pixel unit region 11 a is arranged in a concentrated manner.
  • the non-pixel unit region 11 b is basically an organic film layer 13 except that an electrical connection line connecting the transistor 1211 of the adjacent pixel unit region 11 a passes through. Rigidity and flexibility characterize the ability of a material to resist elastic deformation under external forces.
  • the advantage of the above solution is that, by arranging inorganic materials with strong rigidity and poor flexibility, the non-pixel unit region 11b with less inorganic material is provided, so that the non-pixel unit region 11b is much more flexible than the pixel unit region 11a. Since the pixel unit area 11a and the non-pixel unit area 11b are alternately arranged, in this way, when the flexible OLED panel 1 is bent, the non-pixel unit area 11b with good flexibility is preferentially bent, thereby reducing the breakdown of the anode 122a in the pixel unit area 11a. The risk further increases the overall flexibility of the flexible OLED panel 1.
  • the flexible OLED panel 1 can also be used as a touch panel by providing a touch layer on the packaging layer.
  • the flexible OLED panel 1 can even be integrated and assembled with other components as a semi-finished product to form a display device such as a mobile phone, a tablet computer (PAD), and a vehicle display screen.
  • the above-mentioned pixel unit region 11 a and non-pixel unit region 11 b having a large difference in rigidity and flexibility can also buffer the stress on the solid flexible substrate 11 during a touch process.
  • FIG. 3 is a schematic structural diagram of a pixel unit region of a flexible OLED panel in another embodiment of the present application.
  • FIG. 4 is a schematic structural view of the cross-sectional structure shown in FIG. 3 after the anode is added and displayed.
  • the structure of the flexible OLED panel 1 ′ in this embodiment is substantially the same as that of the flexible OLED panel 1 in FIG. 1, and the only difference is that each pixel unit region 11 a of the flexible OLED panel 1 ′
  • Each subpixel corresponds to a pixel circuit 121 and an anode 122a.
  • the anode 122a is located above a plurality of transistors 1211 corresponding to the pixel circuit 121.
  • the plurality of transistors 1211 includes a switching transistor and a driving transistor.
  • the anode 122a of each subpixel The connected conductive plugs 15 are clustered toward the center around each sub-pixel.
  • a pixel unit region 11 a has three sub-pixels, such as a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
  • the three sub-pixels are distributed in a triangle, and the conductive plugs 15 are gathered toward the center of the triangle.
  • Gathering and distributing the conductive plugs 15 of each sub-pixel can further enhance the rigidity and reduce the flexibility of the pixel unit area 11a, thereby increasing the contrast between the rigidity and flexibility of the pixel unit area 11a and the non-pixel unit area 11b, making the flexible OLED panel 1 'When bending, the non-pixel unit region 11b tends to bend first.
  • FIG. 5 is a schematic cross-sectional structure diagram of a flexible OLED panel in still another embodiment of the present application.
  • the flexible OLED panel 1 ′′ in this embodiment has substantially the same structure as the flexible OLED panel 1 ′ in FIG. 3, except that in the flexible OLED panel 1 ′′, an inorganic material is provided on the lower surface of the anode 122 a. Support layer 16. As shown in FIG. 5, since there is a separation distance between the respective anodes 122, the electrodeless support layers 16 corresponding to the respective anodes 122 are segmented.
  • the material of the inorganic supporting layer 16 may be at least one of silicon dioxide, silicon nitride, and silicon oxynitride. The above materials can enhance the rigidity and reduce the flexibility of the pixel unit region 11a.
  • FIG. 6 is a schematic cross-sectional structure diagram of a flexible OLED panel in another embodiment of the present application.
  • the inorganic supporting layer 16 on the lower surface of the anode 122 a corresponding to each sub-pixel may be integrated into one body to improve the supporting performance on the one hand and simplify the process steps in manufacturing the inorganic supporting layer 16 on the other hand.

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Abstract

本申请提供了一种显示装置及其柔性OLED面板。作为一个示例，该柔性OLED面板包括：通过在柔性OLED面板上设置像素单元区与非像素单元区，将刚性强、柔性差的阳极以及像素电路中包含多层无机材料的晶体管集中设置在像素单元区，非像素单元区除了连接相邻像素单元区的晶体管的电连接线穿过外，基本为有机膜层。

Description

显示装置及其柔性OLED面板 技术领域
本申请涉及有机发光二极管OLED显示设备技术领域，尤其涉及一种显示装置及其柔性OLED面板。
背景技术
随着显示技术的发展，出现了基于柔性基底的可弯折柔性显示器件。其中，有机发光二极管(Organic Light-Emitting Diode，OLED)由于具有自发光的特点，因此与其他显示器件相比，具有功耗低、显示亮度好等优点。基于柔性基底上的OLED显示器也更容易实现更小弯曲半径的可弯折显示。因此，基于柔性基底的OLED显示面板的制作已经引起了广泛的关注，弯折寿命也成为柔性OLED显示面板可靠性必验证的项目之一。
发明内容
本申请的目的是提供一种显示装置及其柔性OLED面板，改善OLED显示面板弯折过程中，对阳极的应力缓冲，提高OLED显示面板的可靠性。
为实现上述目的，本申请的第一方面提供一种柔性OLED面板。该柔性OLED面板包括：柔性基底，以及位于所述柔性基底上的多个OLED发光器件。所述多个OLED发光器件包括多个像素电路及设置在所述多个像素电路上方的功能层，所述功能层包括多个阳极。其中，所述柔性OLED面板包括多个像素单元区和多个非像素单元区，所述像素单元区阵列式排布，相邻像素单元区之间为非像素单元区，至少一个阳极与所述像素电路中的多个晶体管位于一个所述像素单元区，相邻像素单元区的晶体管之间通过电连接线连接，所述电连接线穿过至少一个所述非像素单元区；所述电连接线位于所述非像素单元区的部分由有机膜层包覆。
可选地，所述非像素单元区包括电连接线的一部分与所述有机膜层。
可选地，所述电连接线包括行排布的扫描线、列排布的数据线与电源线。
可选地，所述多个阳极位于所述多个晶体管的上方，所述多个晶体管包括开关晶体管与驱动晶体管，所述开关晶体管和所述驱动晶体管中的至少一个的全部落于对应的一个阳极的正投影内。
可选地，所述多个阳极位于所述多个晶体管的上方，所述多个晶体管包括开关晶体管与驱动晶体管，所述开关晶体管和所述驱动晶体管中的至少一个的部分落于对应的一个阳极的正投影内。
可选地，在所述多个阳极中至少一个阳极的下表面设有无机支撑层。
可选地，一个所述像素单元区包括多个子像素，所述多个子像素中的每一子像素对应一阳极；各个子像素分别对应的阳极下表面的无机支撑层连成一体。
可选地，一个所述像素单元区包括多个子像素，所述多个子像素围绕一中心分布；所述多个子像素中的各子像素对应一像素电路及一阳极，所述阳极位于对应所述像素电路的多个晶体管的上方；所述多个晶体管包括开关晶体管与驱动晶体管，所述阳极与所述驱动晶体管的漏极通过导电插塞相连，所述阳极连接的导电插塞朝所述中心聚拢。
可选地，所述多个子像素包括红色子像素、绿色子像素、蓝色子像素，所述红色子像素、绿色子像素与蓝色子像素呈三角形分布，所述导电插塞朝所述三角形的中心聚集。
可选地，所述阳极与所述晶体管之间设有膜层，所述导电插塞形成在所述膜层中。
可选地，所述膜层为有机膜层和无机膜层中的至少一种。
可选地，所述无机支撑层的材料包括二氧化硅、氮化硅和氮氧化硅中的至少一种。
可选地，所述像素单元区包括一无机材料层，所述无机材料层包括氮化硅、氮氧化硅、氧化硅中的至少一种，所述无机材料层形成至少一层。
本申请的第二方面还提供一种显示装置，包括上述第一方面所述的柔性OLED面板。
本申请的有益效果在于：本申请通过在柔性基底上设置像素单元区与非像素单元区，将刚性强、柔性差的阳极以及阵列式像素电路中包含多层无机材料的晶体管集中设置在像素单元区，非像素单元区除了连接相邻像素单元区的晶体管之间的电连接线穿过外，基本为有机膜层。好处在于：通过将刚性强、柔性差的无机材料集中设置，提供具有较少无机材料的非像素单元区，使得非像素单元区的柔性远强于像素单元区，由于像素单元区、非像素单元区交替设置，如此，在弯折柔性OLED面板时，柔性佳的非像素单元区优先被弯折，从而降低了像素单元区中阳极断裂的风险、提高了柔性OLED面板整体的柔性。
可选方案中，非像素单元区仅具有电连接线与有机膜层。尽可能减少像素单元区中的无机膜层，能提高非像素单元区的柔性，也即弯折性能。
可选方案中，电连接线包括行排布的扫描线、列排布的数据线与电源线。其它可选方案中，电连接线还可以包括其它控制线。
可选方案中，阳极位于晶体管的上方，晶体管包括开关晶体管与驱动晶体管，开关晶体管和/或驱动晶体管的全部或部分落于阳极的正投影内。增加阳极与晶体管的投影重叠面积，可以增大能提供的非像素单元区的面积，提高柔性OLED面板整体的弯折性能。
可选方案中，阳极下表面具有无机支撑层。无机支撑层能增强像素单元区的刚性、降低柔性，进一步提高像素单元区、非像素单元区两者刚性、柔性的反差，柔性OLED面板弯折时，更有利于非像素单元区先弯折。
可选方案中，像素单元区具有若干子像素，各个子像素围绕一中心分布；每一子像素对应一像素电路及阳极，各个阳极位于对应像素电路的晶体管的上方，晶体管包括开关晶体管与驱动晶体管，阳极与驱动晶体管的漏极通过导电插塞相连，各个子像素的阳极连接的导电插塞朝上述中心聚集。将各像素的导电插塞聚集分布，也是增强像素单元区刚性、降低柔性的一种途径。
附图说明
图1是本申请一实施例中的柔性OLED面板的部分结构示意图；
图2是图1中沿AA直线的剖视结构增加显示阳极后的结构示意图；
图3是本申请另一实施例中的柔性OLED面板的一个像素单元区的结构示意图；
图4是图3的截面结构增加显示阳极后的结构示意图；
图5是本申请再一实施例中的柔性OLED面板的截面结构示意图；
图6是本申请又一实施例中的柔性OLED面板的截面结构示意图。
为方便理解本发明，以下列出本发明中出现的所有附图标记：
柔性OLED面板1、1'、1”               固态柔性基底11
OLED发光器件12                       阵列式像素电路121
像素单元区11a                        非像素单元区11b
晶体管1211                           阳极122a
无机材料层14                         导电插塞15
扫描线1212   数据线1213
电源线1214   有机膜层13
无机支撑层16
具体实施方式
为使本申请的上述目的、特征和优点能够更为明显易懂，下面结合附图对本申请的具体实施例做详细的说明。
在弯曲柔性OLED显示面板的过程中，阳极很容易受到张力和压力侵害，导致出现裂纹或断裂。此外，与显示区域的其他材料相比，作为阳极的透明导电氧化物(例如：Indium Tin Oxides，ITO)的脆性大、柔性低，在弯曲柔性OLED显示面板过程中，容易出现裂纹，这导致阳极的某些区域无法接收来自像素电路中晶体管(例如：Thin Film Transistor，TFT)的信号，导致柔性OLED显示面板失效。
有鉴于此，本申请提供一种显示装置及其柔性OLED面板，改善弯折性能，以解决上述技术问题。
图1是本申请一实施例中的柔性OLED面板的部分结构示意图。图2是图1中沿AA直线的剖视结构增加显示阳极的结构示意图。
参照图1与图2，该柔性OLED面板1包括：柔性基底11以及位于柔性基底11上的OLED发光器件12。OLED发光器件12包括像素电路121及设置在像素电路121上方的功能层(未图示)。像素电路121包括多个晶体管1211，功能层包括自下而上堆叠的阳极122a、OLED发光层(未图示)、阴极(未图示)。像素电路121可为阵列式电路。柔性基底11可为固态柔性基底。
其中，柔性OLED面板1被划分成包括像素单元区11a和非像素单元区11b，像素单元区11a阵列式排布。相邻的像素单元区11a之间为非像素单元区11b。阳极122a与晶体管1211位于像素单元区11a，相邻像素单元区11a的晶体管1211之间的电连接线穿过非像素单元区11b；电连接线位于非像素单元区11b的部分由有机膜层13包覆。
固态柔性基底11的材质可以为聚酰亚胺、聚萘二甲酸乙二醇酯、聚对苯二甲酸乙二醇酯、聚芳酯、聚碳酸酯、聚醚砜和聚醚酰亚胺中的至少一种。
像素单元区11a还可以包括一无机材料层14。无机材料层14可以为氮化硅、氮氧化硅、氧化硅中的至少一种，形成一层、两层或多层。当无机材料层14为氮化硅或氮 氧化硅时，无机材料层14可以作为钝化层，用于防止外界的水汽、氧从固态柔性基底11向上扩散。当无机材料层14为氧化硅时，无机材料层14可以作为粘附层，用于提高固态柔性基底11与在其上后续提供的阵列式像素电路121中的无机材料之间的粘结性，防止剥离。
图1与图2中，OLED发光器件12的阵列式像素电路121可以包括多个薄膜晶体管1211及电容(未图示)，薄膜晶体管1211如开关晶体管与驱动晶体管。驱动晶体管的漏极与OLED功能层中的阳极122a通过导电插塞15相连，便于注入空穴。OLED功能层中的阴极由上方的公共电极(未图示)充当。
参照图1，阵列式像素电路121除了包括薄膜晶体管1211及电容(未图示)，还可包括用于连接相邻像素单元区11a的晶体管1211的电连接线(未图示)。电连接线可以包括行排布的扫描线1212、列排布的数据线1213与电源线1214。数据线1213与电源线1214可以位于同一层，但数据线1213、电源线1214与扫描线1212在不同层。
阵列式像素电路121的工作过程如下：开关晶体管的栅极与扫描线1212电连接，开关晶体管的源极与数据线1213连接，当扫描线1212的扫描信号有效时，开关晶体管导通并将数据线1213中的电信号提供给驱动晶体管，使得驱动晶体管开启，并将电源线1214中的电压信号提供给阳极122a。阳极122a与阴极之间形成电势差，阳极122a的空穴与阴极的电子在发光层中复合发光，从而实现显示功能。
上述工作过程中，位于开关晶体管漏极与驱动晶体管源极之间的电容可以为驱动晶体管的栅极提供稳定的开启电压。
每一像素单元区可以包括若干子像素，例如为红色子像素、绿色子像素、蓝色子像素。每一子像素对应一个像素电路。
图1所示的每一像素单元区11a中包括三个子像素，该三个子像素共用数据线1213及电源线1214。其它实施例中，各个子像素之间可以分别连接数据线1213及电源线1214。
参照图2，像素单元区11a中，开关晶体管和/或驱动晶体管的全部或部分可以落于阳极122a的正投影内。通过该方式，增大了阳极122a与晶体管1211的投影之间的重叠面积，从而可以增大能提供的非像素单元区11b的面积。
其它实施例中，阵列式像素电路121中的晶体管1211除了开关晶体管与驱动晶体管，还可以包括其它晶体管；相邻像素单元区11a的晶体管1211之间的电连接线除了行排布的扫描线1212、列排布的数据线1213与电源线1214，还可以具有其它控制线，本申 请对阵列式像素电路121的具体结构并不加以限制。
结合图1与图2所示，非像素单元区11b中，除了行排布的扫描线1212、列排布的数据线1213与电源线1214之外，可基本为有机膜层13。有机膜层13能提高非像素单元区11b的柔性。有机膜层13在非像素单元区11b所占比例越大，则非像素单元区11b柔性越好。有机膜层13的材质可以为聚酰亚胺、聚萘二甲酸乙二醇酯、聚对苯二甲酸乙二醇酯、聚芳酯、聚碳酸酯、聚醚砜和聚醚酰亚胺中的至少一种。
像素单元区11a中，阳极122a与晶体管121之间也可具有机膜层13，导电插塞15形成在有机膜层13中。
其它实施例中，阳极122a与晶体管121之间可以具有无机膜层，例如二氧化硅，此时无机膜层相当于介电层，导电插塞15形成在该介电层中。
OLED发光器件12上还可以设置封装层。封装层可以为薄膜封装(Thin Film Encapsulation，TFE)中的多层，该多层例如为氮化硅、有机层、氮化硅的三层结构。也可以为采用若干有机、无机材料结合的叠层，本申请对此不加以限制。
上述柔性OLED面板1中，通过将柔性OLED面板1划分为像素单元区11a与非像素单元区11b，将刚性强、柔性差的阳极122a以及阵列式像素电路121中包含多层无机材料的晶体管1211集中设置在像素单元区11a，非像素单元区11b除了连接相邻像素单元区11a的晶体管1211的电连接线穿过外，基本为有机膜层13。刚性与柔性是表征材料在外力作用下抵抗弹性变形的能力。
上述方案的好处在于：通过将刚性强、柔性差的无机材料集中设置，提供具有较少无机材料的非像素单元区11b，使得非像素单元区11b的柔性远强于像素单元区11a。由于像素单元区11a、非像素单元区11b交替设置，如此，在弯折柔性OLED面板1时，柔性佳的非像素单元区11b优先被弯折，从而降低了像素单元区11a中阳极122a断裂的风险、进而提高了柔性OLED面板1整体的柔性。
柔性OLED面板1除了作为显示器件使用，还可以通过在封装层上设置触控层，作为触控面板使用。柔性OLED面板1甚至还可以作为半成品与其它部件集成、装配在一起形成如手机、平板电脑(PAD)、车载显示屏等显示装置。上述刚性、柔性差异大的像素单元区11a与非像素单元区11b也可以缓冲在触摸过程中对固态柔性基底11的应力。
图3是本申请另一实施例中的柔性OLED面板的一个像素单元区的结构示意图。图 4是图3的截面结构增加显示阳极后的结构示意图。参照图1至图4所示，本实施例中的柔性OLED面板1'与图1中的柔性OLED面板1的结构大致相同，区别仅在于：在柔性OLED面板1'的每个像素单元区11a中，每一子像素对应一像素电路121及一阳极122a，阳极122a位于对应像素电路121的多个晶体管1211的上方，所述多个晶体管1211包括开关晶体管与驱动晶体管，各个子像素的阳极122a连接的导电插塞15朝各个子像素围绕的中心聚集。
例如参照图1，在一个像素单元区11a中具有三个子像素，例如红色子像素、绿色子像素与蓝色子像素，该三个子像素呈三角形分布，导电插塞15朝该三角形的中心聚集。
将各子像素的导电插塞15聚集分布，能进一步增强像素单元区11a的刚性、降低柔性，从而提高像素单元区11a、非像素单元区11b两者刚性、柔性的反差，使得柔性OLED面板1'弯折时，更趋向于非像素单元区11b先弯折。
图5是本申请再一实施例中的柔性OLED面板的截面结构示意图。参照图5所示，本实施例中的柔性OLED面板1"与图3中的柔性OLED面板1'结构大致相同，区别仅在于：在柔性OLED面板1"中，在阳极122a下表面设有无机支撑层16。如图5所示，由于各个阳极122之间存在间隔距离，因此与各个阳极122分别对应的无极支撑层16是片段式的。
无机支撑层16的材质可以为二氧化硅、氮化硅和氮氧化硅中的至少一种，上述材质能增强像素单元区11a的刚性、降低柔性。
图6是本申请又一实施例中的柔性OLED面板的截面结构示意图。参照图6，各个子像素对应的阳极122a下表面的无机支撑层16可以连成一体，一方面提高支撑性能，另一方面简化制作无机支撑层16时的工艺步骤。
虽然本申请披露如上，但本申请并非限定于此。任何本领域技术人员，在不脱离本申请的精神和范围内，均可作各种更动与修改，因此本申请的保护范围应当以权利要求所限定的范围为准。

Claims (16)

  1. 一种柔性有机发光二极管OLED面板，包括：柔性基底，以及位于所述柔性基底上的多个OLED发光器件；所述多个OLED发光器件包括多个像素电路及设置在所述多个像素电路上方的功能层，所述功能层包括多个阳极；
    其中，所述柔性OLED面板包括多个像素单元区和多个非像素单元区，所述像素单元区阵列式排布，相邻像素单元区之间为非像素单元区，至少一个阳极与所述像素电路中的多个晶体管位于一个所述像素单元区，相邻像素单元区的晶体管之间通过若干电连接线连接，所述若干电连接线穿过至少一个所述非像素单元区；所述电连接线中位于所述非像素单元区的部分电连接线由有机膜层包覆。
  2. 根据权利要求1所述的柔性OLED面板，其中，所述非像素单元区包括电连接线的一部分与所述有机膜层。
  3. 根据权利要求1所述的柔性OLED面板，其中，所述电连接线包括行排布的扫描线、列排布的数据线与电源线。
  4. 根据权利要求1所述的柔性OLED面板，其中，所述多个阳极位于所述多个晶体管的上方，所述多个晶体管包括开关晶体管与驱动晶体管，所述开关晶体管和所述驱动晶体管中的至少一个的全部落于对应的一个阳极的正投影内。
  5. 根据权利要求1所述的柔性OLED面板，其中，所述多个阳极位于所述多个晶体管的上方，所述多个晶体管包括开关晶体管与驱动晶体管，所述开关晶体管和所述驱动晶体管中的至少一个的部分落于对应的一个阳极的正投影内。
  6. 根据权利要求1所述的柔性OLED面板，其中，在所述多个阳极中至少一个阳极的下表面设有无机支撑层。
  7. 根据权利要求1所述的柔性OLED面板，其中，一个所述像素单元区包括多个子像素，所述多个子像素中的每一子像素对应一阳极；各个子像素分别对应的阳极下表面的无机支撑层连成一体。
  8. 根据权利要求1所述的柔性OLED面板，其中，一个所述像素单元区包括多个子像素，所述多个子像素围绕一中心分布；所述多个子像素中的各子像素对应一像素电路及一阳极，所述阳极位于对应所述像素电路的多个晶体管的上方；所述多个晶体管包括开关晶体管与驱动晶体管，所述阳极与所述驱动晶体管的漏极通过导电插塞相连，所述阳极连接的导电插塞朝所述中心聚拢。
  9. 根据权利要求8所述的柔性OLED面板，其中，所述多个子像素包括红色子像素、绿色子像素、蓝色子像素，所述红色子像素、绿色子像素与蓝色子像素呈三角形分 布，所述导电插塞朝所述三角形的中心聚集。
  10. 根据权利要求8所述的柔性OLED面板，其中，所述阳极与所述晶体管之间设有膜层，所述导电插塞形成在所述膜层中。
  11. 根据权利要求10所述的柔性OLED面板，其中，所述膜层为有机膜层和无机膜层中的至少一种。
  12. 根据权利要求9所述的柔性OLED面板，其中，所述阳极与所述晶体管之间设有膜层，所述导电插塞形成在所述膜层中。
  13. 根据权利要求12所述的柔性OLED面板，其中，所述膜层为有机膜层和无机膜层中的至少一种。
  14. 根据权利要求6所述的柔性OLED面板，其中，所述无机支撑层的材料包括二氧化硅、氮化硅和氮氧化硅中的至少一种。
  15. 根据权利要求1所述的柔性OLED面板，其中，所述像素单元区包括一无机材料层，所述无机材料层包括氮化硅、氮氧化硅、氧化硅中的至少一种，所述无机材料层形成至少一层。
  16. 一种显示装置，其中，包括权利要求1所述的柔性OLED面板。
PCT/CN2019/078916 2018-09-28 2019-03-20 显示装置及其柔性oled面板 Ceased WO2020062801A1 (zh)

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