WO2023097796A1 - Oled 显示面板及电子设备 - Google Patents

Oled 显示面板及电子设备 Download PDF

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Publication number
WO2023097796A1
WO2023097796A1 PCT/CN2021/138873 CN2021138873W WO2023097796A1 WO 2023097796 A1 WO2023097796 A1 WO 2023097796A1 CN 2021138873 W CN2021138873 W CN 2021138873W WO 2023097796 A1 WO2023097796 A1 WO 2023097796A1
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WIPO (PCT)
Prior art keywords
display area
organic layer
layer
inorganic layer
retaining wall
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PCT/CN2021/138873
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English (en)
French (fr)
Inventor
练文东
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US17/620,698 priority Critical patent/US20240049567A1/en
Priority to JP2021576692A priority patent/JP2024503156A/ja
Publication of WO2023097796A1 publication Critical patent/WO2023097796A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • 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
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/842—Containers
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • 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
    • H10K59/126—Shielding, e.g. light-blocking means over the 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
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • H10K59/8731—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers

Definitions

  • the present application relates to the field of display technology, in particular to an OLED display panel and electronic equipment.
  • OLED display is a current-mode organic light-emitting device.
  • OLED displays are widely used in flexible displays due to their advantages such as simple structure, self-illumination, fast response, ultra-thin, and low power consumption. industry. Since the intrusion of external water vapor will increase the risk of failure of the OLED device, therefore, after the panel manufacturing process in the OLED device, packaging is usually required to reduce the risk of failure of the OLED device.
  • the mainstream flexible packaging method is thin film encapsulation (Thin Film Encapsulation, TFE), that is, a laminated structure of inorganic film and organic film, and the inorganic film covers the organic film.
  • TFE Thin Film Encapsulation
  • the inorganic film is the main water vapor barrier film layer, and the inorganic film is usually deposited by chemical vapor deposition (Chemical Vapor Deposition) Vapor Deposition, CVD) preparation.
  • the organic film is used to prolong the water vapor transmission path and release the stress of the inorganic film.
  • the organic film is usually printed with ink by inkjet printing equipment, and is formed after leveling and curing.
  • Embodiments of the present application provide an OLED display panel and electronic equipment, so as to improve the encapsulation effect of the edge of the OLED display panel.
  • An embodiment of the present application provides an OLED display panel, which includes:
  • a display body having a display area and a non-display area disposed around the display area;
  • the encapsulation structure is arranged on one side of the display main body, the encapsulation structure extends from the display area to the non-display area, and the encapsulation structure includes a first organic layer, a first inorganic layer and a second an organic layer, the second organic layer covers the side surface of the first organic layer.
  • the encapsulation structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer is located on the side of the first organic layer close to the display main body , the third inorganic layer is located on a side of the second organic layer away from the first inorganic layer.
  • the display body includes a driving substrate, a light-emitting layer, and a first electrode
  • the light-emitting layer is disposed on the driving substrate and located in the display area
  • the first An electrode covers a side of the light-emitting layer away from the driving substrate, and extends from the display area to the non-display area;
  • the orthographic projection of the first organic layer on the plane of the driving substrate is located within the orthographic projection of the first electrode on the plane of the driving substrate.
  • the OLED display panel further includes a dam, the dam is disposed around the first organic layer, and is located at a location where the first electrode is far away from the driving substrate. side.
  • the second organic layer covers the side surface of the first electrode
  • the OLED display panel further includes a retaining wall, the retaining wall is arranged on the driving substrate and is located on a side of the second organic layer away from the display area, the first inorganic layer, the second Both the inorganic layer and the third inorganic layer cover the retaining wall.
  • the second organic layer covers the side surface of the first electrode
  • the OLED display panel further includes a retaining wall, the retaining wall is arranged on the driving substrate, and is located on the side of the second organic layer away from the display area, and the second inorganic layer is located on the side close to the dam.
  • the first organic layer covers a side surface of the second inorganic layer, and both the first inorganic layer and the third inorganic layer cover the retaining wall.
  • the second organic layer covers the side surface of the first electrode
  • the OLED display panel further includes a retaining wall, the retaining wall is arranged on the driving substrate, and is located on the side of the second organic layer away from the display area, and the second inorganic layer is located on the side close to the dam.
  • the first organic layer covers the side surface of the second inorganic layer
  • the first inorganic layer is located on the side of the retaining wall close to the display area
  • the second organic layer layer covering the side surface of the first inorganic layer
  • the third inorganic layer covering the barrier wall.
  • the display area includes an effective display area and an invalid display area
  • the invalid display area is located between the effective display area and the non-display area
  • the first The organic layer extends from the effective display area to the non-display area.
  • the display body includes a driving substrate, a light-emitting layer, and a first electrode
  • the light-emitting layer is disposed on the driving substrate and located in the display area
  • the first An electrode covers a side of the light-emitting layer away from the driving substrate, and extends from the display area to the non-display area;
  • the first organic layer covers side surfaces of the first electrode.
  • the OLED display panel further includes a retaining wall, the retaining wall is located on a side of the second organic layer away from the display area, and the first inorganic layer, Both the second inorganic layer and the third inorganic layer cover the retaining wall.
  • the OLED display panel further includes a dam, the dam is located between the retaining wall and the second organic layer, and the height of the dam is smaller than that of the retaining wall the height of.
  • the OLED display panel further includes a dam, the dam is located between the retaining wall and the first organic layer, and the height of the dam is smaller than that of the retaining wall
  • the second organic layer covers the embankment and extends to the area between the embankment and the retaining wall.
  • the embodiment of the present application also provides an OLED display panel, which includes:
  • a display body the display body has a display area and a non-display area arranged around the display area, the display area includes an effective display area and an invalid display area, and the invalid display area is located between the effective display area and the display area between the aforementioned non-display areas;
  • the encapsulation structure is arranged on one side of the display main body, the encapsulation structure extends from the display area to the non-display area, and the encapsulation structure includes a first organic layer, a first inorganic layer and a second an organic layer, the first organic layer extends from the effective display area to the non-display area, and the second organic layer covers a side surface of the first organic layer;
  • the encapsulation structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer is located on the side of the first organic layer close to the display main body, and the third inorganic layer is located on the side of the first organic layer The side of the second organic layer away from the first inorganic layer.
  • An embodiment of the present application also provides an electronic device, the electronic device includes a casing and an OLED display panel disposed in the casing, wherein the OLED display panel includes:
  • a display body having a display area and a non-display area disposed around the display area;
  • the encapsulation structure is arranged on one side of the display main body, the encapsulation structure extends from the display area to the non-display area, and the encapsulation structure includes a first organic layer, a first inorganic layer and a second an organic layer, the second organic layer covers the side surface of the first organic layer.
  • the encapsulation structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer is located on the side of the first organic layer close to the display main body , the third inorganic layer is located on a side of the second organic layer away from the first inorganic layer.
  • the display body includes a driving substrate, a light-emitting layer, and a first electrode
  • the light-emitting layer is disposed on the driving substrate and located in the display area
  • the first An electrode covers a side of the light-emitting layer away from the driving substrate, and extends from the display area to the non-display area;
  • the orthographic projection of the first organic layer on the plane of the driving substrate is located within the orthographic projection of the first electrode on the plane of the driving substrate.
  • the OLED display panel further includes a dam, the dam is disposed around the first organic layer, and is located at a location where the first electrode is far away from the driving substrate. side.
  • the second organic layer covers the side surface of the first electrode
  • the OLED display panel further includes a retaining wall, the retaining wall is arranged on the driving substrate and is located on a side of the second organic layer away from the display area, the first inorganic layer, the second Both the inorganic layer and the third inorganic layer cover the retaining wall.
  • the second organic layer covers the side surface of the first electrode
  • the OLED display panel further includes a retaining wall, the retaining wall is arranged on the driving substrate, and is located on the side of the second organic layer away from the display area, and the second inorganic layer is located on the side close to the dam.
  • the first organic layer covers a side surface of the second inorganic layer, and both the first inorganic layer and the third inorganic layer cover the retaining wall.
  • the second organic layer covers the side surface of the first electrode
  • the OLED display panel further includes a retaining wall, the retaining wall is arranged on the driving substrate, and is located on the side of the second organic layer away from the display area, and the second inorganic layer is located on the side close to the dam.
  • the first organic layer covers the side surface of the second inorganic layer
  • the first inorganic layer is located on the side of the retaining wall close to the display area
  • the second organic layer layer covering the side surface of the first inorganic layer
  • the third inorganic layer covering the barrier wall.
  • the OLED display panel provided by the present application arranges the first organic layer and the second organic layer in the encapsulation structure, and makes the second organic layer cover the side surface of the first organic layer,
  • the external water vapor invades the packaging structure from the edge of the panel, if the water resistance of the inorganic film layer at the edge of the panel decreases or cracks occur, the external water vapor will first enter the second organic layer and then enter the first organic layer, passing through the two organic layers
  • the setting can prolong the water vapor intrusion path and delay the time for water vapor intrusion to the display area, thereby improving the encapsulation effect of the edge of the OLED display panel.
  • FIG. 1 is a schematic structural diagram of an OLED display panel provided by a first embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of an OLED display panel provided by a second embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of an OLED display panel provided by a third embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of an OLED display panel provided by a fourth embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of an OLED display panel provided by a fifth embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of an OLED display panel provided by a sixth embodiment of the present application.
  • Embodiments of the present application provide an OLED display panel and electronic equipment. Each will be described in detail below. It should be noted that the description sequence of the following embodiments is not intended to limit the preferred sequence of the embodiments.
  • the present application provides an OLED display panel, which includes a display body and a packaging structure.
  • the display body has a display area and a non-display area arranged around the display area.
  • the encapsulation structure is arranged on one side of the display body.
  • the packaging structure extends from the display area to the non-display area.
  • the encapsulation structure includes a first organic layer, a first inorganic layer and a second organic layer arranged in sequence. The second organic layer covers side surfaces of the first organic layer.
  • the OLED display panel provided by the present application arranges the first organic layer and the second organic layer in the encapsulation structure, and makes the second organic layer cover the side surface of the first organic layer.
  • the external water vapor will first enter the second organic layer and then enter the first organic layer.
  • the setting of two organic layers can prolong the water vapor intrusion path and delay The time for water vapor to intrude into the display area, thereby improving the encapsulation effect of the edge of the OLED display panel.
  • the OLED display panel provided by the present application will be described in detail below through specific embodiments.
  • the first embodiment of the present application provides an OLED display panel 100 .
  • the OLED display panel 100 includes a display body 10 and a packaging structure 20 .
  • the display body 10 has a display area 101 and a non-display area 102 provided around the display area 101 .
  • the encapsulation structure 20 is disposed on one side of the display body 10 .
  • the encapsulation structure 20 extends from the display area 101 to the non-display area 102 .
  • the encapsulation structure 20 includes a first organic layer 21 , a first inorganic layer 22 and a second organic layer 23 arranged in sequence.
  • the second organic layer 23 covers side surfaces of the first organic layer 21 .
  • the display body 10 includes a driving substrate 11 , a light emitting layer 12 , a first electrode 13 and an optical cover layer 14 .
  • the driving substrate 11 may be a thin film transistor substrate.
  • the thin film transistor substrate includes a substrate and a metal oxide thin film transistor (not shown in the figure) disposed on the substrate, and the relevant technologies are all prior art, and will not be repeated here.
  • the light emitting layer 12 is disposed on the driving substrate 11 and located in the display area 101 .
  • the first electrode 13 covers a side of the light emitting layer 12 away from the driving substrate 11 .
  • the first electrode 13 extends from the display area 101 to the non-display area 102 .
  • the first electrode 13 may be an anode or a cathode.
  • the first electrode 13 is a cathode.
  • an anode (not shown in the figure) is provided on the side of the driving substrate 11 close to the light-emitting layer 12.
  • the related technologies are all existing technologies and will not be repeated here. .
  • the optical covering layer 14 covers a side of the first electrode 13 away from the light emitting layer 12 .
  • the material of the optical covering layer 14 may be an organic material with a high refractive index.
  • the OLED display panel 100 of the present application also includes a plurality of light-emitting devices arranged in an array (not shown in the drawings). shown), the light-emitting device is composed of an anode, a light-emitting layer 12 and a cathode, and the relevant technologies are all prior art, and will not be repeated here.
  • the display area 101 includes an effective display area 1011 and an invalid display area 1012 .
  • the invalid display area 1012 is located between the active display area 1011 and the non-display area 102 .
  • the effective display area 1011 is provided with light-emitting pixels (not shown in the figure), and the invalid display area 1012 is provided with dummy pixels (not shown in the figure).
  • Both the first electrode 13 and the first organic layer 21 extend from the effective display area 1011 to the non-display area 102 .
  • the orthographic projection of the first organic layer 21 on the plane of the driving substrate 11 is located within the orthographic projection of the first electrode 13 on the plane of the driving substrate 11 . That is, the boundary of the first organic layer 21 is located above the first electrode 13 .
  • the non-display region 1012 is provided between the non-display region 102 and the effective display region 1011, in this embodiment, by making the boundary of the first organic layer 21 above the first electrode 13, even if external water vapor invades the first organic layer 21, it will also enter the invalid display area 1012 first, and will not affect the display of the effective display area 1011, thereby ensuring the encapsulation effect of the effective display area 1011.
  • the first organic layer 21 does not occupy additional space of the non-display area 102 , the above arrangement can save the space of the non-display area 102 , and further reduce the frame, which is beneficial to realize the narrow frame design of the OLED display panel 100 .
  • the encapsulation structure 20 further includes a second inorganic layer 24 and a third inorganic layer 25 .
  • the second inorganic layer 24 is located on a side of the first organic layer 21 close to the display body 10 .
  • the third inorganic layer 25 is located on a side of the second organic layer 23 away from the first inorganic layer 22 .
  • the materials of the first inorganic layer 22 , the second inorganic layer 24 and the third inorganic layer 25 may include one or more of silicon oxide, silicon nitride and silicon oxynitride.
  • the encapsulation of the OLED display panel is generally a three-layer encapsulation structure of an inorganic film, an organic film and an inorganic film, and the organic film is sandwiched between two inorganic films.
  • the original three-layer packaging structure cannot guarantee the overall packaging effect of the display panel, thereby reducing the manufacturing yield of the product. Therefore, in this embodiment, by setting the five-layer encapsulation structure 20 including the second inorganic layer 24, the first organic layer 21, the first inorganic layer 22, the second organic layer 23 and the third inorganic layer 25, the OLED display panel can be improved. 100% overall packaging effect, reducing the yield loss caused by foreign matter falling during the panel manufacturing process.
  • the first inorganic layer 22 and the third inorganic layer 25 may be provided in the encapsulation structure 20, and the The second inorganic layer 24 , that is, the first organic layer 21 is directly in contact with the optical covering layer 14 , and details are not described herein again.
  • the OLED display panel 100 further includes a bank 30 .
  • the bank 30 is provided around the first organic layer 21 .
  • the bank 30 is located on a side of the first electrode 13 away from the driving substrate 11 . This arrangement can prevent the first organic layer 21 from overflowing during film formation by providing the dam 30 around the first organic layer 21 , which is beneficial to improve the film formation morphology of the first organic layer 21 .
  • the number of dams 30 can also be one, and at this time, the dams 30 can be a ring structure, and the first organic layer 21 is located in the accommodation space formed by the ring structure; or, the number of dams 30 can be multiple , a plurality of dams 30 are arranged in sequence and surround the first organic layer 21 .
  • the material of the embankment 30 may include organic materials such as epoxy resin or acrylic resin.
  • the second organic layer 23 covers side surfaces of the first electrode 13 . Since the first electrode 13 is usually made of metal materials, the above arrangement can reduce the probability of the first electrode 13 being invaded by external water vapor by disposing the second organic layer 23 on the outside of the first electrode 13, thereby reducing the first electrode 13 due to Oxidation and corrosion probability, so as to reduce the failure probability of the device, so as to improve the service life of the OLED display panel 100 .
  • the OLED display panel 100 further includes a retaining wall 40 .
  • the blocking wall 40 is disposed on the driving substrate 11 .
  • the blocking wall 40 is located on a side of the second organic layer 23 away from the display area 101 .
  • the retaining wall 40 is used to prevent the overflow of the organic materials used in the preparation of the second organic layer 23 .
  • the first inorganic layer 22 , the second inorganic layer 24 and the third inorganic layer 25 all cover the retaining wall 40 to improve the water and oxygen barrier performance at the edge of the panel.
  • the retaining wall 40 includes a first layer 41 and a second layer 42 .
  • the first layer 41 is located between the second layer 42 and the driving substrate 11 .
  • the first layer 41 can be made in the same process as the planarization layer (not shown in the figure) in the driving substrate 11, and the second layer 42 can be made with the pixel defining layer (not shown in the figure) in the driving substrate 11 ) are made by the same process, and the relevant technologies are all existing technologies, and will not be repeated here.
  • the retaining wall 40 may only include one of the first layer 41 and the second layer 42 , and the application does not specifically limit the structure of the retaining wall 40 .
  • the effective display area 1011 is close to the non- One side of the display area 102 is provided with a first organic layer 21 and a second organic layer 23 covering the side surface of the first organic layer 21. Therefore, when external water vapor invades from the non-display area 102, the external water vapor will first enter the second organic layer. After the layer 23, it enters the first organic layer 21.
  • this embodiment Compared with the encapsulation method of a single-layer organic layer, this embodiment increases the intrusion path of water vapor at the edge of the panel and delays the intrusion time of water vapor, so that the edge of the OLED display panel 100 can be improved.
  • the encapsulation effect is helpful to increase the service life of the OLED display panel 100 and improve the manufacturing yield of the product.
  • the second embodiment of the present application provides an OLED display panel 200 .
  • the OLED display panel 200 provided in the second embodiment of the present application is different from the first embodiment in that: the second inorganic layer 24 is located on the side of the bank 30 close to the display area 101 .
  • the first organic layer 21 covers side surfaces of the second inorganic layer 24 .
  • the inventors of the present application have found in experimental research that when metal oxide thin film transistors such as IGZO thin film transistors are used in large-size display panels, due to the consideration of the electrical properties of the panel, oxides with less hydrogen content are usually used. Silicon or silicon nitride is used as a material to prepare the inorganic layer, and the closer to the inorganic layer of the thin film transistor, the smaller the hydrogen content, so as to reduce the probability of hydrogen diffusion into the thin film transistor device, thereby reducing the effect of hydrogen on the electrical properties of the thin film transistor. Influence. However, when the hydrogen content in the inorganic layer is small, the water vapor barrier effect of the inorganic layer will be reduced, increasing the failure risk of the inorganic layer at the edge of the panel under water vapor intrusion.
  • the first organic layer 21 cover the side surface of the second inorganic layer 24, that is, by shrinking the second inorganic layer 24, water vapor can be prevented from invading along the side surface of the second inorganic layer 24, and further Reducing the failure risk of the second inorganic layer 24 under water vapor intrusion can further improve the encapsulation effect of the edge of the panel.
  • the above arrangement reduces the occupied space of the second inorganic layer 24 in the non-display area 102, therefore, the total thickness of the inorganic film layer in the non-display area 102 is reduced, which is conducive to reducing the film layer of the non-display area 102. stress and reduce the risk of peeling between the film layers at the edge of the panel, thereby improving the bending performance of the OLED display panel 200 in the non-display area 102 .
  • the part of the first organic layer 21 outside the second inorganic layer 24 is in direct contact with the optical covering layer 14. Since the optical covering layer 14 is an organic film layer, the first organic layer 21 and the optical cover layer 14 have a good bonding force, therefore, this embodiment can improve the bonding force between the first organic layer 21 and the display body 10, that is, improve the bonding force between the packaging structure 20 and the display body 10.
  • the binding force which is conducive to improving the reliability of the panel.
  • the third embodiment of the present application provides an OLED display panel 300 .
  • the OLED display panel 300 provided by the third embodiment of the present application is different from the second embodiment in that: the first inorganic layer 22 is located on the side of the barrier wall 40 close to the display area 101 .
  • the boundary of the first inorganic layer 22 is located between the first electrode 13 and the barrier wall 40 .
  • the second organic layer 23 covers side surfaces of the first inorganic layer 22 .
  • the second organic layer 23 cover the side surface of the first inorganic layer 22, that is, by retracting the first inorganic layer 22, water vapor can be prevented from invading along the side surface of the first inorganic layer 22, thereby reducing the second organic layer 22.
  • the risk of failure of the inorganic layer 22 under water vapor intrusion can further improve the encapsulation effect of the edge of the panel.
  • the above arrangement reduces the occupied space of the first inorganic layer 22 in the non-display area 102, the total thickness of the inorganic film layer in the non-display area 102 is further reduced, thereby further reducing the film thickness of the non-display area 102.
  • Layer stress reduces the risk of peeling between the film layers at the edge of the panel, and helps to further improve the bending performance of the OLED display panel 300 in the non-display area 102 .
  • the fourth embodiment of the present application provides an OLED display panel 400 .
  • the OLED display panel 400 provided by the fourth embodiment of the present application is different from the first embodiment in that: the first organic layer 21 covers the side surface of the first electrode 13 .
  • the dam 30 is not provided in the OLED display panel 400 .
  • the first organic layer 21 covers the side surface of the first electrode 13, so that the first organic layer 21 and the second organic layer 23 are located outside the first electrode 13 at the same time, thereby prolonging the water vapor outside the first electrode 13.
  • the intrusion path is used to delay the time for water vapor to enter the first electrode 13, thereby further reducing the probability of the first electrode 13 being invaded by external water vapor, so as to further reduce the failure probability of the device.
  • this embodiment omits the setting of the dam 30, the blocking effect of the retaining wall 40 can simultaneously prevent the overflow of the organic material during the film formation process of the first organic layer 21 and the second organic layer 23, thereby helping to save OLED The manufacturing cost of the display panel 400 .
  • the fifth embodiment of the present application provides an OLED display panel 500 .
  • the OLED display panel 500 provided by the fifth embodiment of the present application is different from the first embodiment in that: the first organic layer 21 covers the side surface of the first electrode 13 .
  • the dam 30 is located between the retaining wall 40 and the second organic layer 23 .
  • the height of the embankment 30 is smaller than that of the retaining wall 40 .
  • the first organic layer 21 covers the side surface of the first electrode 13, so that the first organic layer 21 and the second organic layer 23 are located outside the first electrode 13 at the same time, thereby prolonging the water vapor outside the first electrode 13.
  • the intrusion path is used to delay the time for water vapor to enter the first electrode 13, thereby further reducing the probability of the first electrode 13 being invaded by external water vapor, so as to further reduce the failure probability of the device.
  • the probability of organic material spillage can be greatly increased, which is beneficial to improving the film-forming morphology of the first organic layer 21 and the second organic layer 23 .
  • the sixth embodiment of the present application provides an OLED display panel 600 .
  • the OLED display panel 600 provided by the sixth embodiment of the present application is different from the fifth embodiment in that: the second organic layer 23 covers the embankment 30 and extends to the area between the embankment 30 and the retaining wall 40 .
  • the second organic layer 23 is extended to the area between the embankment 30 and the retaining wall 40, that is, the boundary of the second organic layer 23 is placed between the embankment 30 and the retaining wall 40, thereby increasing the size of the second organic layer 23.
  • the occupied area of the second organic layer 23 in the non-display area 102 increases the distance from the boundary of the second organic layer 23 to the display area 101, thereby prolonging the intrusion path of external water vapor in the organic film layer, thereby further improving the OLED display.
  • the encapsulation effect of the panel 600 edge is provided to the area between the embankment 30 and the retaining wall 40, that is, the boundary of the second organic layer 23 is placed between the embankment 30 and the retaining wall 40, thereby increasing the size of the second organic layer 23.
  • the occupied area of the second organic layer 23 in the non-display area 102 increases the distance from the boundary of the second organic layer 23 to the display area 101, thereby prolonging the intrusion path of external water vapor in the organic film layer
  • the present application also provides an electronic device, which may be any product or component with a display function such as electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, and navigator.
  • the electronic device includes a casing and an OLED display panel disposed in the casing, the OLED display panel can be the OLED display panel described in any of the foregoing embodiments, and the specific structure of the OLED display panel can refer to the description of the foregoing embodiments , which will not be repeated here.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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Abstract

一种OLED显示面板（100）及电子设备。OLED显示面板（100）包括显示主体（10）和封装结构（20），显示主体（10）具有显示区（101）和设置在显示区（101）周侧的非显示区（102）；封装结构（20）设置在显示主体（10）的一侧，封装结构（20）自显示区（101）延伸至非显示区（102），封装结构（20）包括依次设置的第一有机层（21）、第一无机层（22）以及第二有机层（23），第二有机层（23）覆盖第一有机层（21）的侧表面。

Description

OLED显示面板及电子设备 技术领域
本申请涉及显示技术领域，具体涉及一种OLED显示面板及电子设备。
 背景技术
有机发光二极管(Organic Light Emitting Diode，OLED)显示器是一种电流型有机发光器件，OLED显示器因具有结构简单、自发光、响应速度快、超轻薄、低功耗等优点而被广泛应用于柔性显示行业。由于外界水汽的入侵会增加OLED器件失效的风险，因此，在OLED器件中的面板制程之后，通常需要进行封装，以降低OLED器件的失效风险。
 技术问题
目前主流的柔性封装方式是采用薄膜封装(Thin Film Encapsulation, TFE)，即无机膜和有机膜的叠层结构，且无机膜覆盖有机膜。其中，无机膜为主要的水汽阻隔膜层，无机膜通常采用化学气相沉积法(Chemical Vapor Deposition, CVD)制备。而有机膜用于延长水汽透过路径并释放无机膜的应力，有机膜通常采用喷墨打印设备打印墨水，经由流平和固化之后形成。通常情况下，外界水汽入侵至面板内部的方式有两种，一种是通过面板正面入侵，一种是通过面板侧面入侵。随着产品边框的缩窄，有机膜边界与无机膜边界的距离越来越近，当面板边缘的无机膜阻水性下降或产生裂纹时，外界水汽会沿着有机膜直接进入显示区，导致面板边缘封装失效。
 技术解决方案
本申请实施例提供一种OLED显示面板及电子设备，以提高OLED显示面板边缘的封装效果。
本申请实施例提供一种OLED显示面板，其包括：
显示主体，所述显示主体具有显示区和设置在所述显示区周侧的非显示区；和
封装结构，设置在所述显示主体的一侧，所述封装结构自所述显示区延伸至所述非显示区，所述封装结构包括依次设置的第一有机层、第一无机层以及第二有机层，所述第二有机层覆盖所述第一有机层的侧表面。
可选的，在本申请的一些实施例中，所述封装结构还包括第二无机层和第三无机层，所述第二无机层位于所述第一有机层靠近所述显示主体的一侧，所述第三无机层位于所述第二有机层远离所述第一无机层的一侧。
可选的，在本申请的一些实施例中，所述显示主体包括驱动基板、发光层以及第一电极，所述发光层设置在所述驱动基板上且位于所述显示区，所述第一电极覆盖于所述发光层远离所述驱动基板的一侧，并自所述显示区延伸至所述非显示区；
所述第一有机层于所述驱动基板所在平面的正投影位于所述第一电极于所述驱动基板所在平面的正投影内。
可选的，在本申请的一些实施例中，所述OLED显示面板还包括堤坝，所述堤坝围设在所述第一有机层的周侧，且位于所述第一电极远离所述驱动基板的一侧。
可选的，在本申请的一些实施例中，所述第二有机层覆盖所述第一电极的侧表面；
所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第一无机层、所述第二无机层以及所述第三无机层均覆盖所述挡墙。
可选的，在本申请的一些实施例中，所述第二有机层覆盖所述第一电极的侧表面；
所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层和所述第三无机层均覆盖所述挡墙。
可选的，在本申请的一些实施例中，所述第二有机层覆盖所述第一电极的侧表面；
所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层位于所述挡墙靠近所述显示区的一侧，所述第二有机层覆盖所述第一无机层的侧表面，所述第三无机层覆盖所述挡墙。
可选的，在本申请的一些实施例中，所述显示区包括有效显示区和无效显示区，所述无效显示区位于所述有效显示区和所述非显示区之间，所述第一有机层自所述有效显示区延伸至所述非显示区。
可选的，在本申请的一些实施例中，所述显示主体包括驱动基板、发光层以及第一电极，所述发光层设置在所述驱动基板上且位于所述显示区，所述第一电极覆盖于所述发光层远离所述驱动基板的一侧，并自所述显示区延伸至所述非显示区；
所述第一有机层覆盖所述第一电极的侧表面。
可选的，在本申请的一些实施例中，所述OLED显示面板还包括挡墙，所述挡墙位于所述第二有机层远离所述显示区的一侧，所述第一无机层、所述第二无机层以及所述第三无机层均覆盖所述挡墙。
可选的，在本申请的一些实施例中，所述OLED显示面板还包括堤坝，所述堤坝位于所述挡墙和所述第二有机层之间，所述堤坝的高度小于所述挡墙的高度。
可选的，在本申请的一些实施例中，所述OLED显示面板还包括堤坝，所述堤坝位于所述挡墙和所述第一有机层之间，所述堤坝的高度小于所述挡墙的高度，所述第二有机层覆盖所述堤坝，并延伸至所述堤坝和所述挡墙之间的区域。
本申请实施例还提供一种OLED显示面板，其包括：
显示主体，所述显示主体具有显示区和设置在所述显示区周侧的非显示区，所述显示区包括有效显示区和无效显示区，所述无效显示区位于所述有效显示区和所述非显示区之间；和
封装结构，设置在所述显示主体的一侧，所述封装结构自所述显示区延伸至所述非显示区，所述封装结构包括依次设置的第一有机层、第一无机层以及第二有机层，所述第一有机层自所述有效显示区延伸至所述非显示区，所述第二有机层覆盖所述第一有机层的侧表面；
其中，所述封装结构还包括第二无机层和第三无机层，所述第二无机层位于所述第一有机层靠近所述显示主体的一侧，所述第三无机层位于所述第二有机层远离所述第一无机层的一侧。
本申请实施例还提供一种电子设备，所述电子设备包括壳体和设置在所述壳体中的OLED显示面板，其中，所述OLED显示面板包括：
显示主体，所述显示主体具有显示区和设置在所述显示区周侧的非显示区；和
封装结构，设置在所述显示主体的一侧，所述封装结构自所述显示区延伸至所述非显示区，所述封装结构包括依次设置的第一有机层、第一无机层以及第二有机层，所述第二有机层覆盖所述第一有机层的侧表面。
可选的，在本申请的一些实施例中，所述封装结构还包括第二无机层和第三无机层，所述第二无机层位于所述第一有机层靠近所述显示主体的一侧，所述第三无机层位于所述第二有机层远离所述第一无机层的一侧。
可选的，在本申请的一些实施例中，所述显示主体包括驱动基板、发光层以及第一电极，所述发光层设置在所述驱动基板上且位于所述显示区，所述第一电极覆盖于所述发光层远离所述驱动基板的一侧，并自所述显示区延伸至所述非显示区；
所述第一有机层于所述驱动基板所在平面的正投影位于所述第一电极于所述驱动基板所在平面的正投影内。
可选的，在本申请的一些实施例中，所述OLED显示面板还包括堤坝，所述堤坝围设在所述第一有机层的周侧，且位于所述第一电极远离所述驱动基板的一侧。
可选的，在本申请的一些实施例中，所述第二有机层覆盖所述第一电极的侧表面；
所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第一无机层、所述第二无机层以及所述第三无机层均覆盖所述挡墙。
可选的，在本申请的一些实施例中，所述第二有机层覆盖所述第一电极的侧表面；
所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层和所述第三无机层均覆盖所述挡墙。
可选的，在本申请的一些实施例中，所述第二有机层覆盖所述第一电极的侧表面；
所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层位于所述挡墙靠近所述显示区的一侧，所述第二有机层覆盖所述第一无机层的侧表面，所述第三无机层覆盖所述挡墙。
 有益效果
相较于现有技术中的OLED显示面板，本申请提供的OLED显示面板通过在封装结构中设置第一有机层和第二有机层，并使第二有机层覆盖第一有机层的侧表面，当外界水汽自面板边缘入侵至封装结构时，若面板边缘处的无机膜层阻水性下降或产生裂纹时，外界水汽会先进入第二有机层之后再进入第一有机层，通过两层有机层的设置可以延长水汽入侵路径，延缓水汽入侵至显示区的时间，从而提高了OLED显示面板边缘的封装效果。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请第一实施例提供的OLED显示面板的结构示意图。
图2是本申请第二实施例提供的OLED显示面板的结构示意图。
图3是本申请第三实施例提供的OLED显示面板的结构示意图。
图4是本申请第四实施例提供的OLED显示面板的结构示意图。
图5是本申请第五实施例提供的OLED显示面板的结构示意图。
图6是本申请第六实施例提供的OLED显示面板的结构示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。此外，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本申请，并不用于限制本申请。在本申请中，在未作相反说明的情况下，使用的方位词如“上”和“下”通常是指装置实际使用或工作状态下的上和下，具体为附图中的图面方向；而“内”和“外”则是针对装置的轮廓而言的。
本申请实施例提供一种OLED显示面板及电子设备。以下分别进行详细说明。需说明的是，以下实施例的描述顺序不作为对实施例优选顺序的限定。
本申请提供一种OLED显示面板，其包括显示主体和封装结构。显示主体具有显示区和设置在显示区周侧的非显示区。封装结构设置在显示主体的一侧。封装结构自显示区延伸至非显示区。封装结构包括依次设置的第一有机层、第一无机层以及第二有机层。第二有机层覆盖第一有机层的侧表面。
由此，本申请提供的OLED显示面板通过在封装结构中设置第一有机层和第二有机层，并使第二有机层覆盖第一有机层的侧表面，当外界水汽自面板边缘入侵至封装结构时，若面板边缘处的无机膜层阻水性下降或产生裂纹时，外界水汽会先进入第二有机层之后再进入第一有机层，通过两层有机层的设置可以延长水汽入侵路径，延缓水汽入侵至显示区的时间，从而提高了OLED显示面板边缘的封装效果。
下面通过具体实施例对本申请提供的OLED显示面板进行详细的阐述。
请参照图1，本申请第一实施例提供一种OLED显示面板100。OLED显示面板100包括显示主体10和封装结构20。显示主体10具有显示区101和设置在显示区101周侧的非显示区102。封装结构20设置在显示主体10的一侧。封装结构20自显示区101延伸至非显示区102。封装结构20包括依次设置的第一有机层21、第一无机层22以及第二有机层23。第二有机层23覆盖第一有机层21的侧表面。
具体的，显示主体10包括驱动基板11、发光层12、第一电极13以及光学覆盖层14。
其中，驱动基板11可以为薄膜晶体管基板。所述薄膜晶体管基板包括基底和设置在基底上的金属氧化物薄膜晶体管（图中未示出），相关技术均为现有技术，在此不再赘述。
发光层12设置在驱动基板11上且位于显示区101。第一电极13覆盖于发光层12远离驱动基板11的一侧。第一电极13自显示区101延伸至非显示区102。其中，第一电极13可以为阳极，也可以为阴极。在本实施例中，第一电极13为阴极，此时，驱动基板11靠近发光层12的一侧设置有阳极（图中未示出），相关技术均为现有技术，在此不再赘述。
光学覆盖层14覆盖于第一电极13远离发光层12的一侧。其中，光学覆盖层14的材料可以为高折射率的有机材料。
需要说明的是，本申请各附图中仅示意出了发光层12的结构，用于方便描述各实施例，本申请的OLED显示面板100还包括多个阵列排布的发光器件（图中未示出），所述发光器件由阳极、发光层12以及阴极构成，相关技术均为现有技术，在此不再赘述。
在本实施例中，显示区101包括有效显示区1011和无效显示区1012。无效显示区1012位于有效显示区1011和非显示区102之间。其中，有效显示区1011内设置有发光像素（图中未示出），无效显示区1012内设置有虚拟像素（图中未示出）。第一电极13和第一有机层21均自有效显示区1011延伸至非显示区102。第一有机层21于驱动基板11所在平面的正投影位于第一电极13于驱动基板11所在平面的正投影内。也即，第一有机层21的边界位于第一电极13的上方。
由于非显示区102和有效显示区1011之间设置有无效显示区1012，因此，本实施例通过使第一有机层21的边界位于第一电极13的上方，即使外界水汽入侵至第一有机层21内，也会先进入无效显示区1012，并不会对有效显示区1011的显示造成影响，从而能够保证有效显示区1011的封装效果。此外，由于第一有机层21不会额外占用非显示区102的空间，因此，上述设置能够节省非显示区102的空间，进而可以缩小边框，有利于实现OLED显示面板100的窄边框设计。
进一步的，封装结构20还包括第二无机层24和第三无机层25。第二无机层24位于第一有机层21靠近显示主体10的一侧。第三无机层25位于第二有机层23远离第一无机层22的一侧。其中，第一无机层22、第二无机层24以及第三无机层25的材料均可以包括氧化硅、氮化硅和氮氧化硅中的一种或多种。
在现有技术中，OLED显示面板的封装一般为无机膜、有机膜以及无机膜的三层封装结构，且有机膜夹设在两层无机膜之间。然而，随着面板尺寸的扩大，面板制程中掉落异物的可能性也增大，原有的三层封装结构无法保证显示面板整体的封装效果，进而降低了产品的制造良率。因此，本实施例通过设置含有第二无机层24、第一有机层21、第一无机层22、第二有机层23以及第三无机层25的五层封装结构20，进而能够提高OLED显示面板100整体的封装效果，降低面板制程中因异物掉落而带来的良率损失。
另外，针对现有技术中设计的含有有机膜和无机膜的两层封装结构，在一些实施例中，封装结构20中也可以仅设置第一无机层22和第三无机层25，并省去第二无机层24，也即，第一有机层21直接与光学覆盖层14相接触，在此不再赘述。
在本实施例中，OLED显示面板100还包括堤坝30。堤坝30围设在第一有机层21的周侧。堤坝30位于第一电极13远离驱动基板11的一侧。该设置通过在第一有机层21周侧设置堤坝30，可以避免第一有机层21在成膜时发生溢流，有利于提高第一有机层21的成膜形貌。
具体的，堤坝30的数量也可以为一个，此时，堤坝30可以为环状结构，第一有机层21位于所述环状结构形成的容纳空间内；或者，堤坝30的数量可以为多个，多个堤坝30依次排布，并围设在第一有机层21的周侧。其中，堤坝30的材料可以包括环氧树脂或丙烯酸树脂等有机材料。
第二有机层23覆盖第一电极13的侧表面。由于第一电极13通常采用金属材料制得，上述设置通过将第二有机层23设置在第一电极13的外侧，可以降低第一电极13被外界水汽入侵的几率，进而降低第一电极13因氧化而腐蚀的几率，以降低器件的失效几率，从而能够提高OLED显示面板100的使用寿命。
在本实施例中，OLED显示面板100还包括挡墙40。挡墙40设置在驱动基板11上。挡墙40位于第二有机层23远离显示区101的一侧。挡墙40用于防止第二有机层23制备时所用的有机材料发生溢流。另外，第一无机层22、第二无机层24以及第三无机层25均覆盖挡墙40，以提高面板边缘的水氧阻隔性能。
具体的，挡墙40包括第一层41和第二层42。第一层41位于第二层42和驱动基板11之间。其中，第一层41可以与驱动基板11中的平坦化层（图中未示出）采用同一道工艺制得，第二层42可以与驱动基板11中的像素界定层（图中未示出）采用同一道工艺制得，相关技术均为现有技术，在此不再赘述。需要说明的是，在一些实施例中，挡墙40也可以仅包括第一层41和第二层42中的一者，本申请对挡墙40的结构不作具体限定。
由此，在本实施例中，若第一无机层22、第二无机层24以及第三无机层25中的一者或多者因阻水性下降或产生裂纹时，由于有效显示区1011靠近非显示区102的一侧设有第一有机层21和覆盖第一有机层21侧表面的第二有机层23，因此，当外界水汽自非显示区102入侵时，外界水汽会先进入第二有机层23之后再进入第一有机层21，相较于单层有机层的封装方式，本实施例增大了面板边缘水汽的入侵路径，延缓了水汽的入侵时间，从而能够提高OLED显示面板100边缘的封装效果，有助于提升OLED显示面板100的使用寿命，并提高产品的制造良率。
请参照图2，本申请第二实施例提供一种OLED显示面板200。本申请第二实施例提供的OLED显示面板200与第一实施例的不同之处在于：第二无机层24位于堤坝30靠近显示区101的一侧。第一有机层21覆盖第二无机层24的侧表面。
本申请的发明人在实验探究中发现，当在大尺寸显示面板中采用金属氧化物薄膜晶体管如IGZO薄膜晶体管时，出于对面板电性性能的考虑，通常会使用含氢量较小的氧化硅或氮化硅为材料来制备无机层，且越靠近薄膜晶体管的无机层，其含氢量越小，以降低氢向薄膜晶体管器件中的扩散几率，从而降低氢对薄膜晶体管电性性能的影响。然而，当无机层中含氢量较小时，会降低无机层的水汽阻隔效果，增加了面板边缘的无机层在水汽入侵下的失效风险。
因此，本实施例通过使第一有机层21覆盖第二无机层24的侧表面，也即，通过将第二无机层24内缩，可以防止水汽沿着第二无机层24的侧面入侵，进而降低第二无机层24在水汽入侵下的失效风险，能够进一步提高面板边缘的封装效果。另外，由于上述设置减小了第二无机层24在非显示区102的占用空间，因此，减小了非显示区102内无机膜层的总厚度，有利于减小非显示区102的膜层应力，降低面板边缘膜层之间的剥离风险，从而能够提高OLED显示面板200在非显示区102的弯折性能。
进一步的，在将第二无机层24内缩之后，第一有机层21位于第二无机层24以外的部分直接与光学覆盖层14接触，由于光学覆盖层14为有机膜层，第一有机层21与光学覆盖层14之间具有良好的结合力，因此，本实施例能够提高第一有机层21与显示主体10之间的结合力，也即，提高了封装结构20与显示主体10之间的结合力，从而有利于提高面板的可靠性。
请参照图3，本申请第三实施例提供一种OLED显示面板300。本申请第三实施例提供的OLED显示面板300与第二实施例的不同之处在于：第一无机层22位于挡墙40靠近显示区101的一侧。第一无机层22的边界位于第一电极13和挡墙40之间。第二有机层23覆盖第一无机层22的侧表面。
本实施例通过使第二有机层23覆盖第一无机层22的侧表面，也即，通过将第一无机层22内缩，可以防止水汽沿着第一无机层22的侧面入侵，进而降低第一无机层22在水汽入侵下的失效风险，能够进一步提高面板边缘的封装效果。另外，由于上述设置减小了第一无机层22在非显示区102的占用空间，故而进一步减小了非显示区102内无机膜层的总厚度，从而能够进一步减小非显示区102的膜层应力，降低面板边缘膜层之间的剥离风险，有助于进一步提高OLED显示面板300在非显示区102的弯折性能。
请参照图4，本申请第四实施例提供一种OLED显示面板400。本申请第四实施例提供的OLED显示面板400与第一实施例的不同之处在于：第一有机层21覆盖第一电极13的侧表面。OLED显示面板400中未设置堤坝30。
本实施例通过使第一有机层21覆盖第一电极13的侧表面，使得第一有机层21和第二有机层23同时位于第一电极13的外侧，进而能够延长第一电极13外侧的水汽入侵路径，以延缓水汽进入第一电极13的时间，从而能够进一步降低第一电极13被外界水汽入侵的几率，以进一步降低器件的失效几率。另外，由于本实施例省去了堤坝30的设置，通过挡墙40的阻挡作用，能够同时防止第一有机层21和第二有机层23成膜过程中有机材料的外溢，进而有利于节省OLED显示面板400的制造成本。
请参照图5，本申请第五实施例提供一种OLED显示面板500。本申请第五实施例提供的OLED显示面板500与第一实施例的不同之处在于：第一有机层21覆盖第一电极13的侧表面。堤坝30位于挡墙40和第二有机层23之间。堤坝30的高度小于挡墙40的高度。
本实施例通过使第一有机层21覆盖第一电极13的侧表面，使得第一有机层21和第二有机层23同时位于第一电极13的外侧，进而能够延长第一电极13外侧的水汽入侵路径，以延缓水汽进入第一电极13的时间，从而能够进一步降低第一电极13被外界水汽入侵的几率，以进一步降低器件的失效几率。另外，通过堤坝30和挡墙40的双重阻挡作用，可以大大提高有机材料外溢的几率，从而有利于提高第一有机层21和第二有机层23的成膜形貌。
请参照图6，本申请第六实施例提供一种OLED显示面板600。本申请第六实施例提供的OLED显示面板600与第五实施例的不同之处在于：第二有机层23覆盖堤坝30，并延伸至堤坝30和挡墙40之间的区域。
本实施例通过使第二有机层23延伸至堤坝30和挡墙40之间的区域，也即，将第二有机层23的边界置于堤坝30和挡墙40之间，进而增大了第二有机层23在非显示区102的占用面积，增大了第二有机层23的边界到显示区101的距离，进而能够延长外界水汽在有机膜层中的入侵路径，从而可以进一步提高OLED显示面板600边缘的封装效果。
本申请还提供一种电子设备，所述电子设备可以为电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。其中，所述电子设备包括壳体和设置在壳体中的OLED显示面板，OLED显示面板可以为前述任一实施例所述的OLED显示面板，OLED显示面板的具体结构可以参照前述实施例的描述，在此不再赘述。
以上对本申请实施例所提供的一种OLED显示面板及电子设备进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种OLED显示面板，其包括：
    显示主体，所述显示主体具有显示区和设置在所述显示区周侧的非显示区；和
    封装结构，设置在所述显示主体的一侧，所述封装结构自所述显示区延伸至所述非显示区，所述封装结构包括依次设置的第一有机层、第一无机层以及第二有机层，所述第二有机层覆盖所述第一有机层的侧表面。
  2. 根据权利要求1所述的OLED显示面板，其中，所述封装结构还包括第二无机层和第三无机层，所述第二无机层位于所述第一有机层靠近所述显示主体的一侧，所述第三无机层位于所述第二有机层远离所述第一无机层的一侧。
  3. 根据权利要求2所述的OLED显示面板，其中，所述显示主体包括驱动基板、发光层以及第一电极，所述发光层设置在所述驱动基板上且位于所述显示区，所述第一电极覆盖于所述发光层远离所述驱动基板的一侧，并自所述显示区延伸至所述非显示区；
    所述第一有机层于所述驱动基板所在平面的正投影位于所述第一电极于所述驱动基板所在平面的正投影内。
  4. 根据权利要求3所述的OLED显示面板，其中，所述OLED显示面板还包括堤坝，所述堤坝围设在所述第一有机层的周侧，且位于所述第一电极远离所述驱动基板的一侧。
  5. 根据权利要求4所述的OLED显示面板，其中，所述第二有机层覆盖所述第一电极的侧表面；
    所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第一无机层、所述第二无机层以及所述第三无机层均覆盖所述挡墙。
  6. 根据权利要求4所述的OLED显示面板，其中，所述第二有机层覆盖所述第一电极的侧表面；
    所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层和所述第三无机层均覆盖所述挡墙。
  7. 根据权利要求4所述的OLED显示面板，其中，所述第二有机层覆盖所述第一电极的侧表面；
    所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层位于所述挡墙靠近所述显示区的一侧，所述第二有机层覆盖所述第一无机层的侧表面，所述第三无机层覆盖所述挡墙。
  8. 根据权利要求1所述的OLED显示面板，其中，所述显示区包括有效显示区和无效显示区，所述无效显示区位于所述有效显示区和所述非显示区之间，所述第一有机层自所述有效显示区延伸至所述非显示区。
  9. 根据权利要求2所述的OLED显示面板，其中，所述显示主体包括驱动基板、发光层以及第一电极，所述发光层设置在所述驱动基板上且位于所述显示区，所述第一电极覆盖于所述发光层远离所述驱动基板的一侧，并自所述显示区延伸至所述非显示区；
    所述第一有机层覆盖所述第一电极的侧表面。
  10. 根据权利要求9所述的OLED显示面板，其中，所述OLED显示面板还包括挡墙，所述挡墙位于所述第二有机层远离所述显示区的一侧，所述第一无机层、所述第二无机层以及所述第三无机层均覆盖所述挡墙。
  11. 根据权利要求10所述的OLED显示面板，其中，所述OLED显示面板还包括堤坝，所述堤坝位于所述挡墙和所述第二有机层之间，所述堤坝的高度小于所述挡墙的高度。
  12. 根据权利要求10所述的OLED显示面板，其中，所述OLED显示面板还包括堤坝，所述堤坝位于所述挡墙和所述第一有机层之间，所述堤坝的高度小于所述挡墙的高度，所述第二有机层覆盖所述堤坝，并延伸至所述堤坝和所述挡墙之间的区域。
  13. 一种OLED显示面板，其包括：
    显示主体，所述显示主体具有显示区和设置在所述显示区周侧的非显示区，所述显示区包括有效显示区和无效显示区，所述无效显示区位于所述有效显示区和所述非显示区之间；和
    封装结构，设置在所述显示主体的一侧，所述封装结构自所述显示区延伸至所述非显示区，所述封装结构包括依次设置的第一有机层、第一无机层以及第二有机层，所述第一有机层自所述有效显示区延伸至所述非显示区，所述第二有机层覆盖所述第一有机层的侧表面；
    其中，所述封装结构还包括第二无机层和第三无机层，所述第二无机层位于所述第一有机层靠近所述显示主体的一侧，所述第三无机层位于所述第二有机层远离所述第一无机层的一侧。
  14. 一种电子设备，其中，所述电子设备包括壳体和设置在所述壳体中的OLED显示面板，所述OLED显示面板包括：
    显示主体，所述显示主体具有显示区和设置在所述显示区周侧的非显示区；和
    封装结构，设置在所述显示主体的一侧，所述封装结构自所述显示区延伸至所述非显示区，所述封装结构包括依次设置的第一有机层、第一无机层以及第二有机层，所述第二有机层覆盖所述第一有机层的侧表面。
  15. 根据权利要求14所述的电子设备，其中，所述封装结构还包括第二无机层和第三无机层，所述第二无机层位于所述第一有机层靠近所述显示主体的一侧，所述第三无机层位于所述第二有机层远离所述第一无机层的一侧。
  16. 根据权利要求15所述的电子设备，其中，所述显示主体包括驱动基板、发光层以及第一电极，所述发光层设置在所述驱动基板上且位于所述显示区，所述第一电极覆盖于所述发光层远离所述驱动基板的一侧，并自所述显示区延伸至所述非显示区；
    所述第一有机层于所述驱动基板所在平面的正投影位于所述第一电极于所述驱动基板所在平面的正投影内。
  17. 根据权利要求16所述的电子设备，其中，所述OLED显示面板还包括堤坝，所述堤坝围设在所述第一有机层的周侧，且位于所述第一电极远离所述驱动基板的一侧。
  18. 根据权利要求17所述的电子设备，其中，所述第二有机层覆盖所述第一电极的侧表面；
    所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第一无机层、所述第二无机层以及所述第三无机层均覆盖所述挡墙。
  19. 根据权利要求17所述的电子设备，其中，所述第二有机层覆盖所述第一电极的侧表面；
    所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层和所述第三无机层均覆盖所述挡墙。
  20. 根据权利要求17所述的电子设备，其中，所述第二有机层覆盖所述第一电极的侧表面；
    所述OLED显示面板还包括挡墙，所述挡墙设置在所述驱动基板上，且位于所述第二有机层远离所述显示区的一侧，所述第二无机层位于所述堤坝靠近所述显示区的一侧，所述第一有机层覆盖所述第二无机层的侧表面，所述第一无机层位于所述挡墙靠近所述显示区的一侧，所述第二有机层覆盖所述第一无机层的侧表面，所述第三无机层覆盖所述挡墙。
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