WO2020118849A1 - Oled显示面板 - Google Patents

Oled显示面板 Download PDF

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Publication number
WO2020118849A1
WO2020118849A1 PCT/CN2019/071968 CN2019071968W WO2020118849A1 WO 2020118849 A1 WO2020118849 A1 WO 2020118849A1 CN 2019071968 W CN2019071968 W CN 2019071968W WO 2020118849 A1 WO2020118849 A1 WO 2020118849A1
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WO
WIPO (PCT)
Prior art keywords
layer
recessed portion
sub
inorganic protective
display panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/071968
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English (en)
French (fr)
Inventor
赵宸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US16/343,563 priority Critical patent/US11342531B2/en
Publication of WO2020118849A1 publication Critical patent/WO2020118849A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • 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
    • 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
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • 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
    • H10K50/868—Arrangements for polarized light emission
    • 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
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—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
    • H10K59/80—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
    • H10K59/80—Constructional details
    • H10K59/8793—Arrangements for polarized light emission

Definitions

  • the present application relates to a display technology, in particular to an OLED display panel.
  • OLED Active Matrix Organic Light Emitting Display
  • OLED Liquid Crystal Display
  • cover window mainly including cover window (Cover window), polarizer, touch film layer (Touch sensor), OLED layer and backplane film (Back Plate) etc.
  • Touch film layer Touch sensor
  • OLED layer mainly including touch film layer (Touch sensor), OLED layer and backplane film (Back Plate) etc.
  • the thickness of the existing OLED display panel is too large, which is not conducive to bending the OLED display panel.
  • the present invention provides an OLED display panel to solve the above technical problems.
  • Embodiments of the present application provide an OLED display panel to solve the technical problem that the existing OLED display panel has a large thickness and is not conducive to bending.
  • An embodiment of the present application provides an OLED display panel, which includes:
  • the polarizer is formed directly on the encapsulation layer
  • the touch function layer is directly formed on the polarizer
  • the touch function layer includes an inorganic protective sub-layer, a first metal sub-layer, a barrier sub-layer, and a second metal sub-layer that are sequentially formed on the polarizer;
  • a plurality of recessed portions are provided on the OLED display panel at intervals, the recessed portions at least penetrate the inorganic protective sub-layer;
  • the barrier sublayer is made of inorganic or organic materials.
  • the recessed portion penetrates the inorganic protective sublayer, and the recessed portion is filled with the material of the barrier sublayer.
  • the recessed portion penetrates the inorganic protective sublayer and the polarizer, and the recessed portion is filled with the material of the barrier sublayer or the material and the barrier of the inorganic protective sublayer in sequence Material of the layer.
  • the recessed portion includes a first recessed portion formed on the polarizer and a second recessed portion formed on the inorganic protective sub-layer corresponding to the region of the first recessed portion;
  • the first recessed portion penetrates the polarizer, and the first recessed portion is filled with the material of the inorganic protective sub-layer; the second recessed portion penetrates the inorganic protective sub-layer and extends into and fills the first In the inorganic protective sub-layer of a recess, the second recess is filled with the material of the barrier sub-layer.
  • the recessed portion penetrates the barrier sublayer, the inorganic protective sublayer and the polarizer, and the recessed portion is sequentially filled with the material of the inorganic protective sublayer, the material of the barrier sublayer and The optical glue or the material and the optical glue sequentially filled with the barrier sublayer.
  • the recessed portion includes a first recessed portion formed on the polarizer, a second recessed portion formed on the inorganic protective sub-layer corresponding to the region of the first recessed portion, and formed A third recessed portion corresponding to the first recessed portion area in the barrier sublayer;
  • the first recessed portion penetrates the polarizer, the first recessed portion is filled with the material of the inorganic protective sublayer; the second recessed portion penetrates the inorganic protective sublayer and extends into the first recess In the inorganic protective sub-layer of the part, the second depression is filled with the material of the barrier sub-layer; the third depression penetrates through the barrier sub-layer, the inorganic protection sub-layer and extends into the second depression In the barrier sublayer, the third recessed portion is filled with optical glue.
  • the opening area of the first recessed portion gradually increases from an end near the encapsulation layer to an end away from the encapsulation layer.
  • the recessed portion is a hole or a trench structure.
  • An embodiment of the present application further provides an OLED display panel, which includes:
  • a polarizer is directly formed on the encapsulation layer to reduce the thickness of the OLED display panel
  • the touch function layer is directly formed on the polarizer to reduce the thickness of the OLED display panel
  • the touch function layer includes an inorganic protective sub-layer, a first metal sub-layer, a barrier sub-layer, and a second metal sub-layer that are sequentially formed on the polarizer.
  • a plurality of recessed portions are provided at intervals on the OLED display panel, and the recessed portions at least penetrate the inorganic protective sub-layer.
  • the recessed portion penetrates the inorganic protective sublayer, and the recessed portion is filled with the material of the barrier sublayer.
  • the recessed portion penetrates the inorganic protective sub-layer and the polarizer, and the recessed portion is filled with the material of the barrier sub-layer or sequentially filled with the inorganic protective sub-layer Materials and barrier sublayer materials.
  • the recessed portion includes a first recessed portion formed on the polarizer and a first portion formed on the inorganic protective sub-layer corresponding to the first recessed portion region Second depression
  • the first recessed portion penetrates the polarizer, the first recessed portion is filled with the material of the inorganic protective sub-layer, and the second recessed portion penetrates the inorganic protective sub-layer and extends into and fills the first In an inorganic protective sublayer of a recess, the second recess is filled with the material of the barrier sublayer.
  • the recessed portion penetrates the barrier sublayer, the inorganic protective sublayer and the polarizer, and the recessed portion is sequentially filled with the material of the inorganic protective sublayer and the barrier The material of the sublayer and the optical glue or the material and the optical glue of the barrier sublayer are sequentially filled.
  • the recessed portion includes a first recessed portion formed on the polarizer, and a first portion formed on the inorganic protective sub-layer corresponding to the first recessed portion area Two recessed portions and a third recessed portion formed in the barrier sublayer corresponding to the first recessed portion area;
  • the first recessed portion penetrates the polarizer, the first recessed portion is filled with the material of the inorganic protective sublayer; the second recessed portion penetrates the inorganic protective sublayer and extends into the first recess In the inorganic protective sub-layer of the part, the second depression is filled with the material of the barrier sub-layer; the third depression penetrates through the barrier sub-layer, the inorganic protection sub-layer and extends into the second depression In the barrier sublayer, the third recessed portion is filled with optical glue.
  • the opening area of the first recessed portion gradually increases from the end near the encapsulation layer to the end away from the encapsulation layer.
  • the barrier sublayer is made of inorganic or organic materials.
  • the recessed portion is a hole or a trench structure.
  • the polarizer is a coated polarizer.
  • the OLED display panel of the present application is prepared by directly placing a polarizer and a touch function layer on the encapsulation layer, which reduces the thickness of the OLED display panel and improves the bending resistance of the OLED display panel Folding performance;
  • the recessed portion penetrates the inorganic protective sub-layer, which reduces the rigidity of the inorganic protective sub-layer and improves the flexibility of the OLED display panel; meanwhile, when the recessed part penetrates the inorganic protective sub-layer and the polarizer, it passes the inorganic protection
  • the sub-layer forms a recessed portion, so that the inorganic protective sub-layer and the encapsulation layer are combined to improve the water and oxygen resistance performance of the OLED display panel; the technical problem that the existing OLED display panel is thick and not conducive to bending is solved.
  • FIG. 1 is a schematic structural diagram of a first embodiment of an OLED display panel of this application.
  • FIG. 2 is a schematic structural diagram of a second embodiment of an OLED display panel of this application.
  • FIG. 3 is a schematic structural view of the second embodiment of the OLED display panel of the present application to complete the steps of the polarizer;
  • FIG. 4 is a schematic structural view of the second embodiment of the OLED display panel of the present application to complete the step of completing the inorganic protective sublayer;
  • FIG. 5 is a schematic structural diagram of a second embodiment of an OLED display panel of the present application to complete a cover plate step
  • FIG. 6 is a schematic structural diagram of a third embodiment of an OLED display panel of this application.
  • FIG. 7 is a schematic structural view of a third embodiment of the OLED display panel of the present application to complete the steps of the polarizer;
  • FIG. 8 is a schematic structural view of the third embodiment of the OLED display panel of the present application to complete the step of completing the inorganic protective sublayer;
  • FIG. 9 is a schematic structural view of the third embodiment of the OLED display panel of the present application to complete the steps of the barrier sublayer;
  • FIG. 10 is a schematic structural diagram of the third embodiment of the OLED display panel of the present application for completing a cover plate step.
  • FIG. 1 is a schematic structural diagram of a first embodiment of an OLED display panel of the present application.
  • the OLED display panel 100 of the first embodiment of the present application includes an encapsulation layer 11, a polarizer 12, a touch function layer 13, an optical glue 14, and a cover plate 15.
  • the polarizer 12 is formed on the encapsulation layer 11.
  • the touch function layer 13 is formed on the polarizer 12.
  • the optical glue 14 is formed on the touch function layer 13.
  • the cover plate 15 is provided on the optical glue 14.
  • the touch function layer 13 includes an inorganic protective sub-layer 131, a first metal sub-layer 132, a barrier sub-layer 133, and a second metal sub-layer 134 that are sequentially formed on the polarizer 12.
  • the thickness of the OLED display panel 100 is reduced, and the bending resistance performance of the OLED display panel 100 is improved.
  • the polarizer 12 is a coated polarizer.
  • a plurality of recessed portions are arranged at intervals on the OLED display panel, and the recessed portions at least penetrate the inorganic protective sub-layer.
  • the recess 16 penetrates the inorganic protective sub-layer 131, and the material of the barrier sub-layer 133 is formed in the recess 16.
  • the overall rigidity of the inorganic protective sub-layer 131 is reduced, and the flexibility of the OLED display panel 100 is improved.
  • the recess 16 is a hole or a trench structure.
  • the barrier sublayer 133 is made of inorganic or organic materials.
  • the barrier sublayer 133 is made of an organic material, and the recess 16 cuts off the inorganic protective sublayer 131 so that the inorganic protective sublayer 131 does not have continuity to improve the resistance of the OLED display panel 100 Bending.
  • the manufacturing process of the OLED display panel 100 of the first embodiment is:
  • the thin film triode array layer is prepared on the substrate, and then the anode, hole injection layer, hole transport layer, organic light emitting layer, electron transport layer, electron injection layer, and cathode are sequentially formed on the thin film triode array layer to complete Preparation of OLED devices.
  • the encapsulation layer 11 is formed on the OLED device through a chemical vapor deposition process, an atomic layer deposition process, a vacuum evaporation process, or an inkjet printing process.
  • a coated polarizer 12 is prepared on the encapsulation layer 11.
  • the coated polarizer 12 is composed of a linear polarizer and a phase retarder.
  • a phase retarder is prepared on the encapsulation layer 11 by coating, and then a linear polarizer is coated on the phase retarder by an anti-solvent method.
  • the touch function layer 13 is prepared on the coated polarizer 12.
  • an inorganic protective sub-layer 131 is prepared on the polarizer 12, and a recess 16 is formed on the inorganic protective sub-layer 131 through a mask and a photolithography process or through an etching process.
  • the first metal sublayer 132 is formed on the inorganic protective sublayer 131.
  • a barrier sublayer 133 is formed on the first metal sublayer 132, and a part of the material of the barrier sublayer 133 fills the concave portion 16.
  • a second metal sublayer 134 is prepared on the barrier sublayer 133 to form the touch function layer 13.
  • a layer of optical glue 14 is prepared on the touch function layer 13 and the cover 15 is attached to the optical glue 14.
  • FIG. 2 is a schematic structural diagram of a second embodiment of an OLED display panel of the present application.
  • the OLED display panel 200 of the second embodiment includes an encapsulation layer 21, a polarizer 22, a touch function layer 23, an optical glue 24, and a cover 25.
  • the touch function layer 23 includes an inorganic protective sub-layer 231, a first metal sub-layer 232, a barrier sub-layer 233, and a second metal sub-layer 234 that are sequentially formed on the polarizer 22.
  • the second embodiment differs from the first embodiment in that the recess 26 penetrates the inorganic protective sub-layer 231 and the polarizer 22.
  • the recess 26 is filled with the material of the inorganic protective sub-layer 231 and the material of the barrier sub-layer 233 in this order.
  • the OLED display panel 200 of the second embodiment further improves the bending resistance of the OLED display panel 200 by deepening the recess 26 to penetrate the polarizer 22; on the other hand, an inorganic protector is laid on the recess 26
  • the material of the layer 231 provides continuity between the inorganic sub-layers 231, guarantees the performance of preventing water and oxygen invasion, and enhances the encapsulation effect; in addition, the material of the inorganic protective sub-layer 231 and the barrier sub-layer 233 are sequentially filled on the recess 26, By combining the materials of the inorganic protective sub-layer 231 and the barrier sub-layer 233 with the encapsulation layer 21, the resistance to water and oxygen intrusion of the second embodiment is further improved, and the encapsulation effect is improved.
  • the recessed portion may also be filled with the material of the barrier sublayer.
  • This arrangement improves the bending resistance compared to the arrangement in which the material of the inorganic protective sub-layer and the material of the barrier sub-layer are sequentially filled in the depression.
  • the recess 26 includes a first recess 261 formed on the polarizer 22 and the inorganic protective sub-layer 231 corresponding to the first recess 261 The second depression 262 in the area.
  • the first concave portion 261 penetrates the polarizer 22.
  • the first concave portion 261 is filled with the material of the inorganic protective sub-layer 231.
  • the second recessed portion 262 penetrates the inorganic protective sublayer 231 and extends into the inorganic protective sublayer 231 filled in the first recessed portion 261.
  • the second concave portion 262 is filled with the material of the barrier sub-layer 233.
  • the opening area of the first recessed portion 261 increases from the end close to the encapsulation layer 21 toward the end away from the encapsulation layer 21.
  • Such an arrangement can reduce the opening area of the polarizer 22 to avoid affecting the polarizer 22's own function.
  • the longitudinal cross-sectional shapes of the first concave portion 261 and the second concave portion 262 are both isosceles trapezoids.
  • the longitudinal cross-sections of the first recessed portion 261 and the first recessed portion 262 may also be other shapes, such as rectangular, right-angled trapezoid, and so on.
  • the preparation process of the OLED display panel 200 of the second embodiment is:
  • the thin film triode array layer is prepared on the substrate, and then the anode, hole injection layer, hole transport layer, organic light emitting layer, electron transport layer, electron injection layer, and cathode are sequentially formed on the thin film triode array layer to complete Preparation of OLED devices.
  • the encapsulation layer 21 is formed on the OLED device through a chemical vapor deposition process, an atomic layer deposition process, a vacuum evaporation process, or an inkjet printing process.
  • a coated polarizer 22 is prepared on the encapsulation layer 21.
  • the coated polarizer 22 is composed of a linear polarizer and a phase retarder.
  • a phase retarder is prepared by coating on the encapsulation layer 21, and then a linear polarizer is coated on the phase retarder by an anti-solvent method; then, a plurality of first recessed portions arranged at intervals are formed on the polarizer 22 by an etching process 261.
  • Figure 3 Please refer to Figure 3.
  • a touch function layer 13 is prepared on the coated polarizer 12.
  • an inorganic protective sub-layer 231 is prepared on the polarizer 12, and part of the material of the inorganic protective sub-layer 231 is filled in the first concave portion 261; and the inorganic protective sub-layer 231 is formed through a mask plate and a photolithography process
  • the region corresponding to the first recessed portion 261 forms a second recessed portion 262 that extends into the inorganic protective sub-layer 231 filled in the first recessed portion 261.
  • the first metal sublayer 232 is formed on the inorganic protective sublayer 231.
  • a barrier sublayer 233 is formed on the first metal sublayer 232, and part of the material of the barrier sublayer 233 fills the second recess 262.
  • a second metal sublayer 324 is prepared on the barrier sublayer 233 to form the touch function layer 23.
  • the first recessed portion 261 and the second recessed portion 262 are superimposed to form the recessed portion 26.
  • a layer of optical glue 24 is prepared on the touch function layer 23, and the cover plate 25 is attached to the optical glue 24.
  • FIG. 6 is a schematic structural diagram of a third embodiment of an OLED display panel of the present application.
  • the OLED display panel 300 of the third embodiment includes an encapsulation layer 31, a polarizer 32, a touch function layer 33, an optical glue 34, and a cover 35.
  • the touch function layer 33 includes an inorganic protective sub-layer 331, a first metal sub-layer 332, a barrier sub-layer 333, and a second metal sub-layer 334 that are sequentially formed on the polarizer 32.
  • the third embodiment differs from the second embodiment in that in the third embodiment, the recess 36 penetrates the barrier sublayer 333, the inorganic protective sublayer 331, and the polarizer 32.
  • the recess 36 is sequentially filled with the material of the inorganic protective sub-layer 331, the material of the barrier sub-layer 333 and the optical glue 34 or the material of the barrier sub-layer 333 and the optical glue 34 in that order.
  • the concave portion 36 is filled with the material of the inorganic protective sub-layer 331, the material of the barrier sub-layer 333, and the optical glue 34 as an example.
  • the OLED display panel 300 of the third embodiment further improves the bending resistance of the OLED display panel 300 by deepening the recess 36 to penetrate the barrier sub-layer 333, the inorganic protective sub-layer 331 and the polarizer 32;
  • the material of the inorganic protective sub-layer 331, the barrier sub-layer 333 and the optical glue 34 are sequentially filled on the depression 36, so that the material of the inorganic protective sub-layer 231, the barrier sub-layer 233 and the optical glue 34 are combined with the encapsulation layer 31
  • the performance of the third embodiment against water and oxygen invasion is improved, and the packaging effect is improved.
  • the recess 36 includes a first recess 361 formed on the polarizer 32, and a third part formed in the inorganic protective sub-layer 331 corresponding to the region of the first recess 361
  • the first concave portion 361 penetrates the polarizer 32, and the first concave portion 361 is filled with the material of the inorganic protective sub-layer 331; the second concave portion 362 penetrates the inorganic protective sub-layer 331 and extends into the inorganic protection filled in the first concave portion 361 In the sub-layer 331, the second depression 362 is filled with the material of the barrier sub-layer 333; the third depression 363 penetrates the barrier sub-layer 333, the inorganic protective sub-layer 331, and extends into the barrier sub-layer filled in the second depression 362 In 333, optical glue 34 is filled in the third recessed portion 363.
  • the effect of superimposing the first recessed portion 361, the second recessed portion 362, and the third recessed portion 363 can be obtained to further deepen The depth of the recess 36.
  • the preparation process of the OLED display panel 300 of the third embodiment is:
  • the thin film triode array layer is prepared on the substrate, and then the anode, hole injection layer, hole transport layer, organic light emitting layer, electron transport layer, electron injection layer, and cathode are sequentially formed on the thin film triode array layer to complete Preparation of OLED devices.
  • the encapsulation layer 31 is formed on the OLED device by a chemical vapor deposition process, an atomic layer deposition process, a vacuum evaporation process, or an inkjet printing process.
  • a coated polarizer 32 is prepared on the encapsulation layer 31.
  • the coated polarizer 32 is composed of a linear polarizer and a phase retarder.
  • a phase retarder is prepared by coating on the encapsulation layer 31, and then a linear polarizer is coated on the phase retarder by an anti-solvent method; after that, a plurality of first recesses arranged at intervals are formed on the polarizer 32 by an etching process 361.
  • Figure 7 Please refer to Figure 7.
  • the touch function layer 33 is prepared on the coated polarizer 32.
  • an inorganic protective sublayer 331 is prepared on the polarizer 32, and part of the material of the inorganic protective sublayer 331 is filled in the first recessed portion 361; and the inorganic protective sublayer 331 is formed on the inorganic protective sublayer 331 through a mask plate and a photolithography process
  • the region corresponding to the first recessed portion 361 forms a second recessed portion 362 that extends into the inorganic protective sub-layer 331 filled in the first recessed portion 361.
  • the first metal sublayer 332 is formed on the inorganic protective sublayer 331.
  • a barrier sublayer 333 is formed on the first metal sublayer 332, and part of the material of the barrier sublayer 333 fills the second recess 362. Subsequently, referring to FIG. 9, a third recessed portion 363 is formed in the region of the barrier sublayer 333 corresponding to the first recessed portion 361 through a mask and a photolithography process, and the third recessed portion 363 extends into the area filled in the second recessed portion 362 Within the barrier sublayer 333; a second metal sublayer 334 is then formed on the barrier sublayer 333 to form the touch function layer 33.
  • a layer of optical glue 34 is prepared on the touch function layer 33, part of the material of the optical glue 34 fills the third recessed portion 363; and the cover plate 35 is attached to the optical glue 34.
  • the OLED display panel of the present application is prepared by directly placing a polarizer and a touch function layer on the encapsulation layer, which reduces the thickness of the OLED display panel and improves the bending resistance of the OLED display panel Folding performance;
  • the recessed portion penetrates the inorganic protective sub-layer, which reduces the rigidity of the inorganic protective sub-layer and improves the flexibility of the OLED display panel; meanwhile, when the recessed part penetrates the inorganic protective sub-layer and the polarizer, it passes the inorganic protection
  • the sub-layer forms a recessed portion, which makes the inorganic protective sub-layer and the encapsulation layer combine to improve the water and oxygen resistance of the OLED display panel; it solves the technical problem that the existing OLED display panel has a large thickness and is not conducive to bending.

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Abstract

一种OLED显示面板（100），包括封装层（11）、偏光片（12）、触控功能层（13）、光学胶（14）和盖板（15），偏光片（12）形成在封装层（11）上。触控功能层（13）形成在偏光片（12）上。光学胶（14）形成在触控功能层（13）上。盖板（15）设置在光学胶（14）上。触控功能层（13）包括依次形成在偏光片（12）上的无机保护子层（131）、第一金属子层（132）、阻隔子层（133）和第二金属子层（134）。

Description

OLED显示面板 技术领域
本申请涉及一种显示技术，特别涉及一种OLED显示面板。
 背景技术
随着显示技术的发展，对色彩和轻便度要求越来越高，有源矩阵有机发光二极管（Active Matrix Organic Light Emitting Display，AMOLED）正在逐渐走进移动设备、电视机等消费电子市场。OLED显示器具有发光亮度高、视角广、响应速度快、超薄、质量轻、可制作在柔性衬底上等特点。
与传统液晶显示面板（Liquid Crystal Display，LCD）技术相比，OLED最大的优势在于其可做成柔性产品。柔性OLED显示面板，主要包括盖板（Cover window）、偏光片、触控膜层（Touch sensor）、OLED层和背板膜（Back Plate）等。但是现有的OLED显示面板的厚度偏大，不利于OLED显示面板进行弯折。
为了进一步降低整个面板厚度，增强OLED显示面板的弯折特性，本发明提出一种OLED显示面板，以解决上述技术问题。
 技术问题
本申请实施例提供一种OLED显示面板，以解决现有的OLED显示面板厚度较大，不利于进行弯折的技术问题。
 技术解决方案
本申请实施例提供一种OLED显示面板，其包括：
封装层；
偏光片，直接形成在所述封装层上；
触控功能层，直接形成在所述偏光片上；
光学胶，形成在所述触控功能层上；以及
盖板，设置在所述光学胶上；
其中，所述触控功能层包括依次形成在所述偏光片上的无机保护子层、第一金属子层、阻隔子层和第二金属子层；
所述OLED显示面板上间隔设置有多个凹陷部，所述凹陷部至少贯穿所述无机保护子层；
所述阻隔子层为无机或有机材料制成。
在本申请的OLED显示面板中，所述凹陷部贯穿所述无机保护子层，所述凹陷部内填充有所述阻隔子层的材料。
在本申请的OLED显示面板中，所述凹陷部贯穿所述无机保护子层和偏光片，所述凹陷部内填充有所述阻隔子层的材料或依次填充有无机保护子层的材料和阻隔子层的材料。
在本申请的OLED显示面板中，所述凹陷部包括形成在所述偏光片上的第一凹陷部和形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部；
所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有所述无机保护子层的材料；所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的所述无机保护子层内，所述第二凹陷部内填充有所述阻隔子层的材料。
在本申请的OLED显示面板中，所述凹陷部贯穿所述阻隔子层、无机保护子层和偏光片，所述凹陷部内依次填充有所述无机保护子层的材料、阻隔子层的材料和光学胶或依次填充有所述阻隔子层的材料和光学胶。
在本申请的OLED显示面板中，所述凹陷部包括形成在所述偏光片上的第一凹陷部、形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部和形成在所述阻隔子层对应于所述第一凹陷部区域的第三凹陷部；
所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有无机保护子层的材料；所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的无机保护子层内，所述第二凹陷部内填充有阻隔子层的材料；所述第三凹陷部贯穿所述阻隔子层、无机保护子层和延伸入填充于所述第二凹陷部的所述阻隔子层内，所述第三凹陷部内填充有光学胶。
在本申请的OLED显示面板中，所述第一凹陷部的开口面积自靠近所述封装层的一端向远离所述封装层的一端递增。
在本申请的OLED显示面板中，所述凹陷部为孔洞或沟槽结构。
本申请实施例还提供一种OLED显示面板，其包括：
封装层；
偏光片，直接形成在所述封装层上，以缩小所述OLED显示面板的厚度；
触控功能层，直接形成在所述偏光片上，以缩小所述OLED显示面板的厚度；
光学胶，形成在所述触控功能层上；以及
盖板，设置在所述光学胶上；
其中，所述触控功能层包括依次形成在所述偏光片上的无机保护子层、第一金属子层、阻隔子层和第二金属子层。
在本申请的OLED显示面板中，所述OLED显示面板上间隔设置有多个凹陷部，所述凹陷部至少贯穿所述无机保护子层。
在本申请的OLED显示面板的第一实施例中，所述凹陷部贯穿所述无机保护子层，所述凹陷部内填充有所述阻隔子层的材料。
在本申请的OLED显示面板的第二实施例中，所述凹陷部贯穿所述无机保护子层和偏光片，所述凹陷部内填充有所述阻隔子层的材料或依次填充有无机保护子层的材料和阻隔子层的材料。
在本申请的OLED显示面板的第二实施例中，所述凹陷部包括形成在所述偏光片上的第一凹陷部和形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部；
所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有所述无机保护子层的材料，所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的无机保护子层内，所述第二凹陷部内填充有所述阻隔子层的材料。
在本申请的OLED显示面板的第三实施例中，所述凹陷部贯穿所述阻隔子层、无机保护子层和偏光片，所述凹陷部内依次填充有所述无机保护子层的材料、阻隔子层的材料和光学胶或依次填充有所述阻隔子层的材料和光学胶。
在本申请的OLED显示面板的第三实施例中，所述凹陷部包括形成在所述偏光片上的第一凹陷部、形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部和形成在所述阻隔子层对应于所述第一凹陷部区域的第三凹陷部；
所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有无机保护子层的材料；所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的无机保护子层内，所述第二凹陷部内填充有阻隔子层的材料；所述第三凹陷部贯穿所述阻隔子层、无机保护子层和延伸入填充于所述第二凹陷部的所述阻隔子层内，所述第三凹陷部内填充有光学胶。
在本申请的OLED显示面板第二和第三实施例，所述第一凹陷部的开口面积自靠近所述封装层的一端向远离所述封装层的一端递增。
在本申请的OLED显示面板中，所述阻隔子层为无机或有机材料制成。
在本申请的OLED显示面板中，所述凹陷部为孔洞或沟槽结构。
在本申请的OLED显示面板中，所述偏光片为涂布式偏光片。
 有益效果
相较于现有技术的OLED显示面板，本申请的OLED显示面板通过将偏光片、触控功能层直接在封装层上进行制备，降低了OLED显示面板的厚度，提高了OLED显示面板的耐弯折性能；另外，通过凹陷部贯穿无机保护子层的设置，降低了无机保护子层的刚性，提高了OLED显示面板的柔性；同时当凹陷部贯穿无机保护子层和偏光片时，通过无机保护子层形成凹陷部，使得无机保护子层和封装层结合，提高了OLED显示面板的抗水氧性能；解决了现有的OLED显示面板厚度较大，不利于进行弯折的技术问题。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面对实施例中所需要使用的附图作简单的介绍。下面描述中的附图仅为本申请的部分实施例，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获取其他的附图。
图1为本申请的OLED显示面板的第一实施例的结构示意图；
图2为本申请的OLED显示面板的第二实施例的结构示意图；
图3为本申请的OLED显示面板的第二实施例完成偏光片步骤的结构示意图；
图4为本申请的OLED显示面板的第二实施例完成无机保护子层步骤的结构示意图；
图5为本申请的OLED显示面板的第二实施例完成盖板步骤的结构示意图；
图6为本申请的OLED显示面板的第三实施例的结构示意图；
图7为本申请的OLED显示面板的第三实施例完成偏光片步骤的结构示意图；
图8为本申请的OLED显示面板的第三实施例完成无机保护子层步骤的结构示意图；
图9为本申请的OLED显示面板的第三实施例完成阻隔子层步骤的结构示意图；
图10为本申请的OLED显示面板的第三实施例完成盖板步骤的结构示意图。
 本发明的实施方式
请参照附图中的图式，其中相同的组件符号代表相同的组件。以下的说明是基于所例示的本申请具体实施例，其不应被视为限制本申请未在此详述的其它具体实施例。
请参照图1，图1为本申请的OLED显示面板的第一实施例的结构示意图。本申请的第一实施例的OLED显示面板100包括封装层11、偏光片12、触控功能层13、光学胶14和盖板15。
其中，偏光片12形成在封装层11上。触控功能层13形成在偏光片12上。光学胶14形成在触控功能层13上。盖板15设置在光学胶14上。
触控功能层13包括依次形成在偏光片12上的无机保护子层131、第一金属子层132、阻隔子层133和第二金属子层134。
在本第一实施例通过将偏光片12、触控功能层13直接在封装层11上进行制备，降低了OLED显示面板100的厚度，提高了OLED显示面板100的耐弯折性能。
在本第一实施例中，偏光片12为涂布式偏光片。
在本申请中，OLED显示面板上间隔设置有多个凹陷部，凹陷部至少贯穿无机保护子层。在本第一实施例中，凹陷部16贯穿无机保护子层131，凹陷部16内形成有阻隔子层133的材料。
通过凹陷部16贯穿无机保护子层131的设置，降低了无机保护子层131的整体刚性，提高了OLED显示面板100的柔性。
其中，凹陷部16为孔洞或沟槽结构。
在本第一实施例中，阻隔子层133为无机或有机材料制成。在本第一实施例中，阻隔子层133由有机材料制成，且凹陷部16断开了无机保护子层131，使得无机保护子层131不具有连续性，以提高OLED显示面板100的耐弯折性。
本第一实施例的OLED显示面板100的制作过程是：
首先，在基板上进行薄膜三极管阵列层的制备，接着在薄膜三极管阵列层上依次形成阳极、空穴注入层、空穴传输层、有机发光层、电子传输层、电子注入层和阴极，以完成OLED器件的制备。
接着，在OLED器件上通过化学气相沉积工艺、原子层沉积工艺、真空蒸镀或喷墨打印工艺形成封装层11。
然后，在封装层11上制备涂布式偏光片12。涂布式偏光片12由线偏光片和相位延迟片组成。在封装层11上通过涂布方式制备相位延迟片，之后利用反溶剂法在相位延迟片上涂布线偏光片。
其次，在涂布式偏光片12上制备触控功能层13。先在偏光片12上制备一层无机保护子层131，并通过掩模板和光刻工艺或通过刻蚀工艺在无机保护子层131上形成凹陷部16。之后，在无机保护子层131上形成第一金属子层132。接着，在第一金属子层132上形成一层阻隔子层133，且阻隔子层133的部分材料填充凹陷部16。随后，在阻隔子层133上制备第二金属子层134，以形成触控功能层13。
最后，在触控功能层13上制备一层光学胶14，并将盖板15贴合在光学胶14上。
这样便完成了本第一实施例的OLED显示面板100的制备过程。
请参照图2，图2为本申请的OLED显示面板的第二实施例的结构示意图。本第二实施例的OLED显示面板200包括封装层21、偏光片22、触控功能层23、光学胶24和盖板25。触控功能层23包括依次形成在偏光片22上的无机保护子层231、第一金属子层232、阻隔子层233和第二金属子层234。
本第二实施例与第一实施例的不同之处在于：凹陷部26贯穿无机保护子层231和偏光片22。凹陷部26内依次填充有无机保护子层231的材料和阻隔子层233的材料。
本第二实施例的OLED显示面板200一方面通过将凹陷部26加深以贯穿偏光片22，进一步提高了OLED显示面板200的耐弯折性；另一方面，在凹陷部26上敷设无机保护子层231的材料，使无机子层231之间具有连续性，保证了防止水氧入侵的性能，增强封装效果；另外在凹陷部26上依次填充无机保护子层231和阻隔子层233的材料，以使无机保护子层231和阻隔子层233的材料和封装层21进行结合，进一步提高了本第二实施例的抗水氧入侵性能，提高封装效果。
当然，在本申请的OLED显示面板中，凹陷部内也可以是填充有阻隔子层材料。这样的设置，相较于凹陷部内依次填充有无机保护子层的材料和阻隔子层的材料的设置，提高了耐弯折性能。
在本第二实施例中，具体的，请参照图3至图5，凹陷部26包括形成在偏光片22上的第一凹陷部261和形成在无机保护子层231对应于第一凹陷部261区域的第二凹陷部262。
第一凹陷部261贯穿偏光片22。第一凹陷部261内填充有无机保护子层231的材料。第二凹陷部262贯穿无机保护子层231和延伸入填充于第一凹陷部261的无机保护子层231内。第二凹陷部262内填充有阻隔子层233的材料。
在本第二实施例，第一凹陷部261的开口面积自靠近封装层21的一端向远离封装层21的一端递增。这样的设置，以减小偏光片22上开口面积，避免影响偏光片22的自身功能。可选的，第一凹陷部261和第二凹陷部262的纵向截面形状均为等腰梯形。当然在本申请中，第一凹陷部261和第一凹陷部262的纵向截面也可以是其他形状，比如矩形、直角梯形等等。
本第二实施例的OLED显示面板200的制备过程是：
首先，在基板上进行薄膜三极管阵列层的制备，接着在薄膜三极管阵列层上依次形成阳极、空穴注入层、空穴传输层、有机发光层、电子传输层、电子注入层和阴极，以完成OLED器件的制备。
接着，在OLED器件上通过化学气相沉积工艺、原子层沉积工艺、真空蒸镀或喷墨打印工艺形成封装层21。
然后，在封装层21上制备涂布式偏光片22。涂布式偏光片22由线偏光片和相位延迟片组成。在封装层21上通过涂布方式制备相位延迟片，之后利用反溶剂法在相位延迟片上涂布线偏光片；之后，通过刻蚀工艺在偏光片22上形成多个间隔设置的第一凹陷部261。请参照图3。
其次，在涂布式偏光片12上制备触控功能层13。请参照图4，先在偏光片12上制备一层无机保护子层231，无机保护子层231的部分材料填充于第一凹陷部261；并通过掩模板和光刻工艺在无机保护子层231对应于第一凹陷部261的区域形成第二凹陷部262，第二凹陷部262延伸入填充于第一凹陷部261的无机保护子层231内。之后，在无机保护子层231上形成第一金属子层232。接着，在第一金属子层232上形成一层阻隔子层233，且阻隔子层233的部分材料填充第二凹陷部262。随后，在阻隔子层233上制备第二金属子层324，以形成触控功能层23。其中第一凹陷部261和第二凹陷部262叠加形成凹陷部26。
最后，请参照图5，在触控功能层23上制备一层光学胶24，并将盖板25贴合在光学胶24上。
这样便完成了本第二实施例的OLED显示面板200的制备过程。
请参照图6，图6为本申请的OLED显示面板的第三实施例的结构示意图。本第三实施例的OLED显示面板300包括封装层31、偏光片32、触控功能层33、光学胶34和盖板35。触控功能层33包括依次形成在偏光片32上的无机保护子层331、第一金属子层332、阻隔子层333和第二金属子层334。
本第三实施例与第二实施例的不同之处在于：在本第三实施例中，凹陷部36贯穿阻隔子层333、无机保护子层331和偏光片32。凹陷部36内依次填充有无机保护子层331的材料、阻隔子层333的材料和光学胶34或依次填充有阻隔子层333的材料和光学胶34。其中本第三实施例以凹陷部36内依次填充有无机保护子层331的材料、阻隔子层333的材料和光学胶34为例进行说明。
本第三实施例的OLED显示面板300一方面通过将凹陷部36加深以贯穿阻隔子层333、无机保护子层331和偏光片32，进一步提高了OLED显示面板300的耐弯折性；另一方面，在凹陷部36上依次填充无机保护子层331、阻隔子层333的材料和光学胶34，以使无机保护子层231、阻隔子层233的材料和光学胶34与封装层31进行结合，提高了本第三实施例的抗水氧入侵性能，提高封装效果。
在本第三实施例中，请参照图7至图10，凹陷部36包括形成在偏光片32上的第一凹陷部361、形成在无机保护子层331对应于第一凹陷部361区域的第二凹陷部362和形成在阻隔子层333对应于第一凹陷部361区域的第三凹陷部363。
第一凹陷部361贯穿偏光片32，第一凹陷部361内填充有无机保护子层331的材料；第二凹陷部362贯穿无机保护子层331和延伸入填充于第一凹陷部361的无机保护子层331内，第二凹陷部362内填充有阻隔子层333的材料；第三凹陷部363贯穿阻隔子层333、无机保护子层331和延伸入填充于第二凹陷部362的阻隔子层333内，第三凹陷部363内填充有光学胶34。
通过在第一凹陷部361的区域对应的设置第二凹陷部362和第三凹陷部363，从而得到叠加第一凹陷部361、第二凹陷部362和第三凹陷部363的效果，进而实现加深凹陷部36的深度。
本第三实施例的OLED显示面板300的制备过程是：
首先，在基板上进行薄膜三极管阵列层的制备，接着在薄膜三极管阵列层上依次形成阳极、空穴注入层、空穴传输层、有机发光层、电子传输层、电子注入层和阴极，以完成OLED器件的制备。
接着，在OLED器件上通过化学气相沉积工艺、原子层沉积工艺、真空蒸镀或喷墨打印工艺形成封装层31。
然后，在封装层31上制备涂布式偏光片32。涂布式偏光片32由线偏光片和相位延迟片组成。在封装层31上通过涂布方式制备相位延迟片，之后利用反溶剂法在相位延迟片上涂布线偏光片；之后，通过刻蚀工艺在偏光片32上形成多个间隔设置的第一凹陷部361。请参照图7。
其次，在涂布式偏光片32上制备触控功能层33。请参照图8，先在偏光片32上制备一层无机保护子层331，无机保护子层331的部分材料填充于第一凹陷部361；并通过掩模板和光刻工艺在无机保护子层331对应于第一凹陷部361的区域形成第二凹陷部362，第二凹陷部362延伸入填充于第一凹陷部361的无机保护子层331内。之后，在无机保护子层331上形成第一金属子层332。接着，在第一金属子层332上形成一层阻隔子层333，且阻隔子层333的部分材料填充第二凹陷部362。随后，请参照图9，通过掩模板和光刻工艺在阻隔子层333对应于第一凹陷部361的区域形成第三凹陷部363，第三凹陷部363延伸入填充于第二凹陷部362的阻隔子层333内；之后在阻隔子层333上制备第二金属子层334，以形成触控功能层33。
最后，请参照图10，在触控功能层33上制备一层光学胶34，光学胶34的部分材料填充第三凹陷部363；并将盖板35贴合在光学胶34上。
这样便完成了本第三实施例的OLED显示面板300的制备过程。
相较于现有技术的OLED显示面板，本申请的OLED显示面板通过将偏光片、触控功能层直接在封装层上进行制备，降低了OLED显示面板的厚度，提高了OLED显示面板的耐弯折性能；另外，通过凹陷部贯穿无机保护子层的设置，降低了无机保护子层的刚性，提高了OLED显示面板的柔性；同时当凹陷部贯穿无机保护子层和偏光片时，通过无机保护子层形成凹陷部，使得无机保护子层和封装层结合，提高了OLED显示面板的抗水氧性能；解决了现有的OLED显示面板厚度较大，不利于进行弯折的技术问题。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (19)

  1. 一种OLED显示面板，其包括：
    封装层；
    偏光片，直接形成在所述封装层上；
    触控功能层，直接形成在所述偏光片上；
    光学胶，形成在所述触控功能层上；以及
    盖板，设置在所述光学胶上；
    其中，所述触控功能层包括依次形成在所述偏光片上的无机保护子层、第一金属子层、阻隔子层和第二金属子层；
    所述OLED显示面板上间隔设置有多个凹陷部，所述凹陷部至少贯穿所述无机保护子层；
    所述阻隔子层为无机或有机材料制成。
  2. 根据权利要求1所述的OLED显示面板，其中，所述凹陷部贯穿所述无机保护子层，所述凹陷部内填充有所述阻隔子层的材料。
  3. 根据权利要求1所述的OLED显示面板，其中，所述凹陷部贯穿所述无机保护子层和偏光片，所述凹陷部内填充有所述阻隔子层的材料或依次填充有无机保护子层的材料和阻隔子层的材料。
  4. 根据权利要求3所述的OLED显示面板，其中，所述凹陷部包括形成在所述偏光片上的第一凹陷部和形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部；
    所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有所述无机保护子层的材料；所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的所述无机保护子层内，所述第二凹陷部内填充有所述阻隔子层的材料。
  5. 根据权利要求1所述的OLED显示面板，其中，所述凹陷部贯穿所述阻隔子层、无机保护子层和偏光片，所述凹陷部内依次填充有所述无机保护子层的材料、阻隔子层的材料和光学胶或依次填充有所述阻隔子层的材料和光学胶。
  6. 根据权利要求5所述的OLED显示面板，其中，所述凹陷部包括形成在所述偏光片上的第一凹陷部、形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部和形成在所述阻隔子层对应于所述第一凹陷部区域的第三凹陷部；
    所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有无机保护子层的材料；所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的无机保护子层内，所述第二凹陷部内填充有阻隔子层的材料；所述第三凹陷部贯穿所述阻隔子层、无机保护子层和延伸入填充于所述第二凹陷部的所述阻隔子层内，所述第三凹陷部内填充有光学胶。
  7. 根据权利要求4所述的OLED显示面板，其中，所述第一凹陷部的开口面积自靠近所述封装层的一端向远离所述封装层的一端递增。
  8. 根据权利要求1所述的OLED显示面板，其中，所述凹陷部为孔洞或沟槽结构。
  9. 一种OLED显示面板，其包括：
    封装层；
    偏光片，直接形成在所述封装层上；
    触控功能层，直接形成在所述偏光片上；
    光学胶，形成在所述触控功能层上；以及
    盖板，设置在所述光学胶上；
    其中，所述触控功能层包括依次形成在所述偏光片上的无机保护子层、第一金属子层、阻隔子层和第二金属子层。
  10. 根据权利要求9所述的OLED显示面板，其中，所述OLED显示面板上间隔设置有多个凹陷部，所述凹陷部至少贯穿所述无机保护子层。
  11. 根据权利要求10所述的OLED显示面板，其中，所述凹陷部贯穿所述无机保护子层，所述凹陷部内填充有所述阻隔子层的材料。
  12. 根据权利要求10所述的OLED显示面板，其中，所述凹陷部贯穿所述无机保护子层和偏光片，所述凹陷部内填充有所述阻隔子层的材料或依次填充有无机保护子层的材料和阻隔子层的材料。
  13. 根据权利要求12所述的OLED显示面板，其中，所述凹陷部包括形成在所述偏光片上的第一凹陷部和形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部；
    所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有所述无机保护子层的材料；所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的所述无机保护子层内，所述第二凹陷部内填充有所述阻隔子层的材料。
  14. 根据权利要求10所述的OLED显示面板，其中，所述凹陷部贯穿所述阻隔子层、无机保护子层和偏光片，所述凹陷部内依次填充有所述无机保护子层的材料、阻隔子层的材料和光学胶或依次填充有所述阻隔子层的材料和光学胶。
  15. 根据权利要求14所述的OLED显示面板，其中，所述凹陷部包括形成在所述偏光片上的第一凹陷部、形成在所述无机保护子层对应于所述第一凹陷部区域的第二凹陷部和形成在所述阻隔子层对应于所述第一凹陷部区域的第三凹陷部；
    所述第一凹陷部贯穿所述偏光片，所述第一凹陷部内填充有无机保护子层的材料；所述第二凹陷部贯穿所述无机保护子层和延伸入填充于所述第一凹陷部的无机保护子层内，所述第二凹陷部内填充有阻隔子层的材料；所述第三凹陷部贯穿所述阻隔子层、无机保护子层和延伸入填充于所述第二凹陷部的所述阻隔子层内，所述第三凹陷部内填充有光学胶。
  16. 根据权利要求15所述的OLED显示面板，其中，所述第一凹陷部的开口面积自靠近所述封装层的一端向远离所述封装层的一端递增。
  17. 根据权利要求13所述的OLED显示面板，其中，所述第一凹陷部的开口面积自靠近所述封装层的一端向远离所述封装层的一端递增。
  18. 根据权利要求9所述的OLED显示面板，其中，所述阻隔子层为无机或有机材料制成。
  19. 根据权利要求10所述的OLED显示面板，其中，所述凹陷部为孔洞或沟槽结构。
PCT/CN2019/071968 2018-12-13 2019-01-16 Oled显示面板 Ceased WO2020118849A1 (zh)

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