WO2023108737A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2023108737A1
WO2023108737A1 PCT/CN2021/140233 CN2021140233W WO2023108737A1 WO 2023108737 A1 WO2023108737 A1 WO 2023108737A1 CN 2021140233 W CN2021140233 W CN 2021140233W WO 2023108737 A1 WO2023108737 A1 WO 2023108737A1
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WO
WIPO (PCT)
Prior art keywords
index layer
refractive index
display area
groove
high refractive
Prior art date
Application number
PCT/CN2021/140233
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English (en)
French (fr)
Inventor
孙佳佳
Original Assignee
武汉华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/623,232 priority Critical patent/US20240032400A1/en
Publication of WO2023108737A1 publication Critical patent/WO2023108737A1/zh

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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
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • 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
    • H10K50/8428—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
    • 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
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • 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

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a display device.
  • the organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panel has the advantages of light weight, wide viewing angle, fast response time, low temperature resistance, and high luminous efficiency.
  • the display industry has always been regarded as the next generation of new display technology, especially the OLED display panel can be made into a flexible display that can be bent on a flexible substrate, which is a huge advantage of the OLED display panel.
  • the microarray pattern in MLP technology usually requires an inkjet printing process (Ink Jet Printing, IJP) to prepare and make it flat to facilitate subsequent processes.
  • IJP Ink Jet Printing
  • the inkjet printing process needs to set up retaining walls or slits around the screen in advance to block the flow of ink and limit the coverage of ink. Therefore, how to design the retaining walls or slits becomes the key to improving the yield of the microarray display panel and effectively limiting the coverage of the ink to achieve a narrow border display.
  • Embodiments of the present application provide a display panel and a display device, which can ensure that all flat parts of the high-refractive index layer are located in the display area, and limit the coverage of the high-refractive index layer to realize narrow-frame display.
  • An embodiment of the present application provides a display panel, the display panel includes a display area and a non-display area located on at least one side of the display area;
  • the display panel also includes:
  • the light emitting layer disposed on one side of the substrate, the light emitting layer including a plurality of light emitting parts disposed in the display area;
  • the low-refractive-index layer disposed on a side of the light-emitting layer away from the substrate, the low-refractive-index layer includes a plurality of openings distributed in an array in the display area and corresponding to a plurality of the light-emitting parts; and a first groove distributed in the non-display area;
  • the high-refractive-index layer disposed on a side of the low-refractive-index layer away from the substrate and filling a plurality of the openings, the high-refractive-index layer has a higher refractive index than the low-refractive-index layer, and The side of the high refractive index layer away from the low refractive index layer has a protrusion;
  • the plurality of openings include the first opening closest to the first groove, and the distance from the first groove to the top of the protrusion along the first direction is greater than that of the first groove along the first direction.
  • the first direction is a direction in which the non-display area points to the display area.
  • the protrusion is located in the display area, and the orthographic projection of the protrusion on the substrate at least partially overlaps with the orthographic projection of the first opening on the substrate. , or the protrusion is located on a side of the first opening away from the non-display area.
  • the thickness of the high refractive index layer at the protrusion is greater than the thickness of other parts of the high refractive index layer.
  • the high refractive index layer covers the first groove, or, the boundary of the high refractive index layer is between the first groove and the display area.
  • the high refractive index layer further includes a second groove, and the second groove is located on a side of the first groove away from the display area;
  • the high refractive index layer covers the second groove, or, the boundary of the high refractive index layer is between the second groove and the display area.
  • the non-display area includes: a bending sub-area for bending, and the first groove is disposed between the display area and the bending sub-area.
  • both ends of the first groove extend to the border of the display panel and are in contact with the border of the display panel.
  • the high refractive index layer further includes: a retaining wall structure, the retaining wall structure is arranged between the first groove and the second groove;
  • the high refractive index layer covers the retaining wall structure, or, the boundary of the high refractive index layer is between the retaining wall structure and the display area.
  • the high refractive index layer includes a first part and a second part connected to both sides of the protrusion, the first part is located in the display area, and the second The portion extends to the non-display area, the distance between the top surface of the second portion and the low-refractive index layer decreases in the direction from the protrusion to the non-display area, and the second portion The distance between the top surface and the low refractive index layer is greater than the distance between the top surface of the first part and the low refractive index layer.
  • the side of the first portion close to the low refractive index layer is filled in the plurality of openings, and the surface of the first portion on the side away from the low refractive index layer for the plane.
  • the length of the first groove along the first direction is greater than the length of each of the openings along the first direction.
  • a display device includes the display panel, the display panel includes a display area and a non-display area located at least one side of the display area;
  • the display panel also includes:
  • the light emitting layer disposed on one side of the substrate, the light emitting layer including a plurality of light emitting parts disposed in the display area;
  • the low-refractive-index layer disposed on a side of the light-emitting layer away from the substrate, the low-refractive-index layer includes a plurality of openings distributed in an array in the display area and corresponding to a plurality of the light-emitting parts; and a first groove distributed in the non-display area;
  • the high-refractive-index layer disposed on a side of the low-refractive-index layer away from the substrate and filling a plurality of the openings, the high-refractive-index layer has a higher refractive index than the low-refractive-index layer, and The side of the high refractive index layer away from the low refractive index layer has a protrusion;
  • the plurality of openings include the first opening closest to the first groove, and the distance from the first groove to the top of the protrusion along the first direction is greater than that of the first groove along the first direction.
  • the first direction is a direction in which the non-display area points to the display area.
  • the protrusion is located in the display area, and the orthographic projection of the protrusion on the substrate at least partially overlaps with the orthographic projection of the first opening on the substrate. , or the protrusion is located on a side of the first opening away from the non-display area.
  • the thickness of the high refractive index layer at the protrusion is greater than the thickness of other parts of the high refractive index layer.
  • the high refractive index layer covers the first groove, or, the boundary of the high refractive index layer is between the first groove and the display area.
  • the high refractive index layer further includes a second groove, and the second groove is located on a side of the first groove away from the display area;
  • the high refractive index layer covers the second groove, or, the boundary of the high refractive index layer is between the second groove and the display area.
  • the non-display area includes: a bending sub-area for bending, and the first groove is disposed between the display area and the bending sub-area.
  • both ends of the first groove extend to the border of the display panel and are in contact with the border of the display panel.
  • the high refractive index layer further includes: a retaining wall structure, the retaining wall structure is arranged between the first groove and the second groove;
  • the high refractive index layer covers the retaining wall structure, or, the boundary of the high refractive index layer is between the retaining wall structure and the display area.
  • the high refractive index layer includes a first part and a second part connected to both sides of the protrusion, the first part is located in the display area, and the second The portion extends to the non-display area, the distance between the top surface of the second portion and the low-refractive index layer decreases in the direction from the protrusion to the non-display area, and the second portion The distance between the top surface and the low refractive index layer is greater than the distance between the top surface of the first part and the low refractive index layer.
  • the thickness will gradually increase at the edge of the ink flowing into the film, and gradually decrease after reaching the apex, so as to form a bulge at the edge of the film layer;
  • the distance between the top of the protrusion and the first groove is set to be greater than the distance between the first opening and the first groove, so that the maximum thickness formed by the edge of the film layer is located on the first opening or the first opening.
  • FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present application
  • FIG. 3 is a schematic plan view of a two-cut process of a display panel provided in an embodiment of the present application
  • FIG. 4 is a schematic diagram of another planar structure of a display panel provided by an embodiment of the present application.
  • FIG. 5 is a schematic plan view of another two-cut process of the display panel provided by the embodiment of the present application.
  • FIG. 6 is a schematic structural diagram in the manufacturing process of the display panel provided by the embodiment of the present application.
  • FIG. 7 is a schematic structural diagram in the manufacturing process of the display panel provided by the embodiment of the present application.
  • the display panel includes a display area AA and a non-display area BA located at least one side of the display area AA; in addition, the display panel also includes a substrate 10, a light-emitting layer, a low-refractive Index layer 20 and high refractive index layer 30.
  • the light emitting layer is arranged on one side of the substrate 10, and the light emitting layer includes a plurality of light emitting portions 62 arranged in the display area AA;
  • the low refractive index layer 20 is arranged on the side of the light emitting layer away from the substrate 10, and the low refractive index layer 20 It includes a plurality of openings 21 distributed in an array in the display area AA and corresponding to a plurality of light emitting parts 62 and a first groove 22 distributed in the non-display area BA;
  • the high refractive index layer 30 is disposed on the low refractive index layer 20 away from the substrate 10 and fills the plurality of openings 21 , the side of the high refractive index layer 30 away from the low refractive index layer 20 has a protrusion 31 .
  • the plurality of openings 21 includes the first opening 211 closest to the first groove 22, the distance from the first groove 22 to the protrusion 31 along the first direction X is greater than the distance from the first groove 22 to the first opening along the first direction X 211, and the first direction X is the direction in which the non-display area BA points to the display area AA. Specifically, referring to FIG.
  • the distance L1 from the first groove 22 to the protrusion 31 along the first direction X can be the distance from the side wall of the first groove 22 near the display area to the protrusion 31, and a groove 22 along the first direction X
  • the distance L2 from one direction X to the first opening 211 may be the distance from the side wall of the first groove 22 near the display area to the side wall of the first opening 211 near the non-display area. In this case, L1 is greater than L2.
  • the distance between the top of the protrusion 31 and the first groove 22 is set to be greater than the distance between the first opening 211 and the first groove 22, so that the maximum thickness formed by the edge of the film layer is located on the first opening 211 Or the first opening 211 is close to the side of the display area AA, so as to ensure that the flat part on the side of the protrusion 31 close to the display area AA is all located in the display area AA, and the farther the protrusion 31 is from the non-display area BA, the higher the height.
  • the display panel includes a display area AA and a non-display area BA located on at least one side of the display area AA.
  • the non-display area BA can be a display panel the lower border area of the .
  • the display panel also includes a substrate 10, a thin film transistor array layer 40 disposed on the substrate 10, a pixel definition layer 50 disposed on the thin film transistor array layer 40, an encapsulation layer 70 disposed on the pixel definition layer 50, an encapsulation layer 70 disposed on the encapsulation layer 70
  • the thin film transistor array layer 40 includes a thin film transistor device 41 disposed on the substrate 10 and a spacer layer covering the thin film transistor device 41, and the spacer layer includes a buffer layer 42 disposed on the substrate 10, and a spacer layer disposed on the buffer layer 42.
  • the thin film transistor device 41 includes a passivated layer disposed on the buffer layer 42
  • the side of the interlayer insulating layer 45 facing away from the substrate 10 is a flat surface, that is, the interlayer insulating layer 45 can also be reused as a flat layer to facilitate subsequent processes.
  • the display panel also includes a plurality of anodes 61 disposed on the interlayer insulating layer 45, the pixel definition layer 50 defines a plurality of pixel openings corresponding to the plurality of anodes 61 one-to-one, and each pixel opening correspondingly exposes an upper surface of an anode 61.
  • the display panel further includes a light emitting layer disposed on the pixel definition layer 50 , and the light emitting layer includes a plurality of light emitting portions 62 disposed on each anode 61 corresponding to each pixel opening.
  • the encapsulation layer 70 covers the pixel definition layer 50 and continuously covers a plurality of pixel openings and a plurality of light emitting parts 62, wherein the encapsulation layer 70 includes a first inorganic encapsulation layer 71 and a second inorganic encapsulation layer stacked on the pixel definition layer 50.
  • the touch layer is disposed on the encapsulation layer 70, and the touch layer includes the first touch metal layer 81 and the second touch metal layer 82 disposed on the encapsulation layer 70, and the first touch metal layer 81 and the second touch metal layer An insulating layer 83 between the two touch metal layers 82 .
  • the touch layer provided by the embodiment of the present application can be mutual capacitance or self capacitance.
  • the first touch metal layer 81 can include a plurality of first electrodes and a plurality of second electrodes. The plurality of first electrodes are connected through the first connection bridge located in the first touch metal layer 81, and the plurality of second electrodes are connected through the second connection bridge located in the second touch metal layer 82.
  • the connection is made through the insulating layer 83.
  • the first touch metal layer 81 may include a plurality of touch electrodes distributed in an array
  • the second touch metal layer 82 may include a plurality of touch wires, and each touch The wiring is correspondingly connected to a touch electrode; in addition, if the touch layer is self-capacitive, the touch layer may only include one metal layer, that is, the metal layer includes a plurality of touch electrodes and adjacent touch electrodes. Multiple touch traces between the electrodes, and each touch trace is connected to a touch electrode, and the embodiment of the present application is only described above as an example, but not limited thereto, the specific type and structure of the touch layer It can be selected according to actual needs.
  • the low refractive index layer 20 is disposed on the touch layer, and the low refractive index layer 20 covers the display area AA and extends to the non-display area BA, wherein the low refractive index layer 20 includes a plurality of openings formed in the display area AA 21 and the first groove 22 formed in the non-display area BA, and the plurality of openings 21 include the first opening 211 closest to the display area BA, that is, among the plurality of openings 21, the first opening 211 is the closest to the first groove 22 .
  • each opening 21 corresponds to a pixel opening, that is, each opening 21 corresponds to a light emitting portion 62 , and the cross-sectional shape of the opening 21 can be set as an inverted trapezoid.
  • the high refractive index layer 30 is disposed on the low refractive index layer 20, and the high refractive index layer 30 also covers the display area AA and extends to the non-display area BA, wherein the high refractive index layer 30 fills the multiple openings 21, to form a plurality of microlens units at a plurality of openings 21, and then can play a light-gathering effect on the corresponding light-emitting portion 62, and improve the light-emitting effect of the corresponding light-emitting portion 62, so as to improve the light-emitting efficiency of the display panel .
  • the refractive index of the high refractive index layer 30 is greater than the refractive index of the low refractive index layer 20, for example, the refractive index of the low refractive index layer 20 may be 1.4 to 1.6, and the material of the low refractive index layer 20 may include light-transmitting organic materials.
  • the refractive index of the high refractive index layer 30 can be 1.61 to 1.8, and the high refractive index
  • the material of layer 30 may include a light-transmitting organic material having a high refractive index.
  • PEDOT poly(3,4-ethylenedioxythiophene)
  • TPD 4,4'-bis[N-(3-methylphenyl)-N-phenylamino]biphenyl
  • m-MTDATA 4,4 ',4"-tris[(3-methylphenyl)phenylamino]triphenylamine
  • o-MTDAB 1,3,5-tris[N,N-bis(2-methylphenyl)-amino ]benzene
  • m-MTDAB 1,3,5-tris[N,N-bis(3-methylphenyl)-amino]benzene
  • p-MTDAB 4,4'-bis[N,N-bis(3-methylphenyl)-amino]diphenylmethane
  • BPPM 4,4'-dicarbazolyl-1,1'-biphenyl
  • CBP 4,4'-dicarbazolyl-1,1'-biphenyl
  • the high refractive index layer 30 can be prepared by an inkjet printing process, and during the flow of the ink, due to the influence of surface tension, the thickness at the edge of the ink will gradually increase, and then gradually decrease after reaching the maximum. small, so that the high refractive index layer 30 forms a protrusion 31 in the display area AA. It can be understood that the thickness of the high refractive index layer 30 is the largest at the protrusion 31 .
  • the high refractive index layer 30 covers the first groove 22, or, the boundary of the high refractive index layer 30 is between the first groove 22 and the display area AA; the distance from the first groove 22 to the top of the protrusion 31 along the first direction X L1 is greater than the distance L2 from the first groove 22 to the first opening 211 along the first direction X, so that the protrusion 31 can be set farther away from the position of the first groove 22, so as to limit the coverage of the high refractive index layer 30, and then can Effectively controlling the coverage of the high refractive index layer 30 in the non-display area BA can reduce the space of the non-display area BA, so as to realize narrow border display.
  • the orthographic projection of the protrusion 31 on the substrate 10 at least partially overlaps the orthographic projection of the first opening 211 on the substrate 10 , or the protrusion 31 is located on a side of the first opening 211 away from the non-display area BA.
  • the high refractive index layer 30 further includes a second groove 23, and the second groove 23 is located on the side of the first groove 22 away from the display area AA. .
  • the lengths of the first groove 22 and the second groove 23 along the first direction X are greater than the length of the opening 21 along the first direction X, and in the embodiment of the present application, the first groove 22 and the second groove
  • the size of the second groove 23 is set to be larger than the size of the opening 21 so as to more effectively block the flow of ink during the process.
  • the high refractive index layer 30 includes a first portion 32 and a second portion 33 connected to two sides of the protrusion 31 , the first portion 32 covers the display area AA, and the second portion 33 extends to the non-display area BA.
  • the side of the first portion 32 close to the low refractive index layer 20 is filled in the plurality of openings 21 to form a plurality of microlenses, and the side of the first portion 32 away from the low refractive index layer 20 is a plane to improve the light output effect, and Improve the flatness of the film layer and facilitate the subsequent process.
  • the high refractive index layer 30 covers the second groove 23, or the boundary of the high refractive index layer 30 is between the second groove 23 and the display area AA, that is, the orthographic projection of the second portion 33 on the low refractive index layer 20 is located at the first Within the boundary of the second groove 23, specifically, the second portion 33 can only cover the first groove 22 and end at the first groove 22, or the second portion 33 can cover the first groove 22 and the second groove 23 and end at the second groove. There are 23 second slots.
  • the distance between the top surface of the second part 33 and the low refractive index layer 20 decreases in the direction from the protrusion 31 to the non-display area BA, and the distance between the top surface of the second part 33 and the low refractive index layer 20 is greater than that of the first part.
  • the distance between the top surface of 32 and the low refractive index layer 20 that is, the thickness of the first portion 32 is smaller than the thickness of the second portion 33 .
  • the low-refractive index layer 20 also includes a retaining wall structure 24 between the first groove 22 and the second groove 23, and the high-refractive index layer 30 can cover the retaining wall structure 24, or, the high-refractive index layer 30 The boundary is between the retaining wall structure 24 and the display area AA.
  • the non-display area BA also includes a bending sub-area and a binding sub-area located on the side away from the display area AA of the bending sub-area, and the bending sub-area is used for bending so that the display panel is located in the binding sub-area It can be bent to the back of the display panel for binding, wherein the first groove 22 is located between the display area AA and the bending sub-area, and similarly, the second groove 23 is also located between the display area AA and the bending sub-area.
  • the distance L2 from the first groove 22 to the first opening 211 along the first direction X should not be too small, and the preferred range of L2 is greater than or equal to 700um; since the second groove 23 is far away from the display area
  • One side of AA also has a binding sub-area.
  • the distance L3 between the second groove 23 and the boundary of the binding sub-area should not be too small, and the preferred range of L3 is greater than or equal to 30um; L1 is greater than Or equal to 1200um, and L1 is also greater than L2, so that the protrusion 31 can be set farther away from the non-display area BA, thereby reducing the coverage area of the high-refractive index layer 30 on the non-display area BA, which can reduce the frame width,
  • the embodiment of the present application limits the ranges of L1, L2, and L3 to avoid affecting the light output effect and binding process of the display panel, and improve the yield rate and display effect of the display panel.
  • both ends of the first groove 22 are in contact with the border of the display panel, wherein the first groove 22 includes first sub-grooves 221 arranged perpendicular to the first direction X and connected to the first sub-grooves 221 and the display panel.
  • the second sub-groove 222 between the borders of the panel is located on both sides of the first sub-groove 221 , wherein the second sub-groove 222 is arranged in a curved line.
  • FIG. 3 is a panel that has not yet undergone a two-cutting process
  • the two-tangent line is the boundary line of the non-display area BA in the illustration provided by the embodiment of the present application.
  • FIG. 2 is the plane structure diagram of the panel after two cuts.
  • the angle between the second sub-groove 222 and the boundary of the non-display area BA is between 80° and 100°. , thereby reducing the stress on the low-refractive index layer 20 during the two-cutting process, and preventing the peeling of the film layer.
  • the angle between the second sub-groove 222 and the boundary of the non-display area BA is 90°.
  • the angle between the first groove 22 and the boundary of the non-display area BA is between 80° and 100°, and similarly, the angle between the second groove 23 and the boundary of the non-display area BA is also 80°. ° to 100° to further reduce the probability of film peeling.
  • the difference between the other above-mentioned embodiments is that the low refractive index layer 20 further includes a third groove 25, and the third groove 25 is located at the first The side of the second groove 23 away from the display area AA.
  • the angle between the third groove 25 and the boundary of the non-display area BA is also between 80° and 100°, so as to further reduce the probability of peeling of the film layer.
  • the distance between the top of the protrusion 31 and the first groove 22 is set to be greater than the distance between the first opening 211 and the first groove 22, so that the thickness formed at the edge of the film layer is at a maximum
  • the flat portion on the side of the protrusion 31 close to the display area AA is located in the display area AA, and the protrusion 31 is far from the non-display area BA.
  • the farther away the smaller the coverage area of the non-display area BA by the high-refractive index layer 30, which can effectively limit the coverage of the high-refractive index layer 30, thereby saving the space of the non-display area BA to realize narrow-frame display.
  • the embodiment of the present application also provides a manufacturing method of the display panel described in the above embodiments, please refer to FIG. 1 , FIG. 6 and FIG. 7 , the manufacturing method includes the following steps:
  • a substrate 10 is provided, and a thin film transistor array layer 40 , a pixel definition layer 50 , an anode 61 , a light emitting layer, an encapsulation layer 70 and a touch control layer can be formed on the substrate 10 according to a conventional process. And the above structures can be configured with reference to the above embodiments, and will not be repeated here.
  • a low refractive index layer 20 is formed on the touch layer, and the low refractive index layer 20 is patterned to form a plurality of openings 21 in the part of the low refractive index layer 20 located in the display area AA.
  • the portion of the layer 20 located in the non-display area BA forms the first groove 22 and the second groove 23 .
  • a high-refractive-index layer 30 is formed on the low-refractive-index layer 20 using a high-refractive-index material, and the high-refractive-index layer 30 can be prepared using an inkjet printing process, so that the part of the high-refractive index layer 30 located in the display area AA A protrusion 31 is formed.
  • the refractive index of the high refractive index layer 30 is greater than the refractive index of the low refractive index layer 20, for example, the refractive index of the low refractive index layer 20 can be 1.4 to 1.6, and the material of the low refractive index layer 20 can include Light-transmitting organic materials.
  • the material of layer 30 may include a light-transmitting organic material having a high refractive index.
  • PEDOT poly(3,4-ethylenedioxythiophene)
  • TPD 4,4'-bis[N-(3-methylphenyl)-N-phenylamino]biphenyl
  • m-MTDATA 4,4 ',4"-tris[(3-methylphenyl)phenylamino]triphenylamine
  • o-MTDAB 1,3,5-tris[N,N-bis(2-methylphenyl)-amino ]benzene
  • m-MTDAB 1,3,5-tris[N,N-bis(3-methylphenyl)-amino]benzene
  • p-MTDAB 4,4'-bis[N,N-bis(3-methylphenyl)-amino]diphenylmethane
  • BPPM 4,4'-dicarbazolyl-1,1'-biphenyl
  • CBP 4,4'-dicarbazolyl-1,1'-biphenyl
  • the side of the high refractive index layer 30 close to the low refractive index layer 20 is filled in the multiple openings 21, and the multiple openings 21 include the first opening 211 closest to the non-display area BA, and the high refractive index layer 30 is far away from the low refractive index layer.
  • One side of the refractive index layer 20 is formed with a protrusion 31 in the display area AA.
  • the distance between the top of the protrusion 31 and the first groove 22 is set to be greater than the distance between the first opening 211 and the first groove 22.
  • the distance between them so that the thickness of the edge of the film layer is formed on the first opening 211 or on the side of the first opening 211 close to the display area AA, so as to ensure the flat part on the side of the protrusion 31 close to the display area AA All are located in the display area AA, and the farther the protrusion 31 is from the non-display area BA, the smaller the coverage area of the high refractive index layer 30 for the non-display area BA, which can effectively limit the coverage of the high refractive index layer 30, and then The space of the non-display area BA can be saved to realize narrow frame display.
  • the distance between the top of the protrusion 31 and the first groove 22 is set to be greater than the distance between the first opening 211 and the first groove 22, so that the thickness formed by the edge of the film layer is at the first opening. 211 or the side of the first opening 211 close to the display area AA, thereby ensuring that the flat portion on the side of the protrusion 31 close to the display area AA is located in the display area AA, and the farther the protrusion 31 is from the non-display area BA, the Then the coverage area of the non-display area BA by the high-refractive index layer 30 is smaller, which can effectively limit the coverage area of the high-refractive index layer 30 , thereby saving the space of the non-display area to realize narrow-frame display.

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  • Electroluminescent Light Sources (AREA)
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Abstract

一种显示面板及显示装置。显示面板还包括低折射率层（20）与高折射率层（30）；低折射率层（20）包括位于显示区（AA）内的多个开口（21）以及位于非显示区（BA）内的第一槽（22）；高折射率层（30）远离低折射率层（20）的一侧具有凸起（31）；第一槽（22）沿第一方向（X）上到凸起（31）顶端的距离（L1）大于第一槽（22）沿第一方向（X）上到多个开口（21）的最短距离，且第一方向（X）为非显示区（BA）指向显示区（AA）的方向。

Description

显示面板及显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板及显示装置。
 背景技术
有机发光二极管(Organic Light-Emitting Diode，OLED)显示面板因其较传统液晶显示器(Liquid Crystal Display，LCD)相比具有重量轻巧，广视角，响应时间快，耐低温，发光效率高等优点，因此在显示行业一直被视其为下一代新型显示技术，特别是OLED显示面板可以在柔性基板上做成能弯曲的柔性显示屏，这更是OLED显示面板的巨大优势。
目前，为降低OLED显示面板的功耗，提高OLED显示面板的效率，面板厂商不断推出新的技术。借助几何光学，通过在OLED屏体内设置微阵列（Microlens Pattern，MLP），将OLED屏体发出的较为发散的光汇聚至屏体正上方，是提高OLED显示面板出光效率的有效手段之一。
然而，MLP技术中的微阵列图形通常需要一道喷墨打印制程（Ink Jet Printing，IJP）来制备，并使其平坦，以方便后续制程。而喷墨打印制程需要提前在屏体周围设置挡墙或者狭缝，以阻挡墨水的流动，限制墨水的覆盖范围。因此，如何设计挡墙或狭缝成为提高微阵列显示面板良率、以及有效限制墨水的覆盖范围以实现窄边框显示的关键。
 技术问题
本申请实施例提供一种显示面板及显示装置，能够确保高折射率层的平坦部分皆位于显示区内，并限制高折射率层的覆盖范围，实现窄边框显示。
 技术解决方案
本申请实施例提供一种显示面板，所述显示面板包括显示区以及位于所述显示区至少一侧的非显示区；
所述显示面板还包括：
基板：
发光层，设置于所述基板的一侧，所述发光层包括设置在所述显示区中的多个发光部；
低折射率层，设置于所述发光层远离所述基板的一侧，所述低折射率层包括呈阵列分布于所述显示区内并与多个所述发光部对应的多个开口、以及分布于所述非显示区内的第一槽；
高折射率层，设置于所述低折射率层远离所述基板的一侧，并填充多个所述开口，所述高折射率层的折射率大于所述低折射率层的折射率，且所述高折射率层远离所述低折射率层的一侧具有凸起；
其中，多个所述开口包括距离所述第一槽最近的第一开口，所述第一槽沿第一方向上到所述凸起顶端的距离大于所述第一槽沿所述第一方向上到所述第一开口的距离，且所述第一方向为所述非显示区指向所述显示区的方向。
在本申请的一种实施例中，所述凸起位于所述显示区内，所述凸起在所述基板上的正投影与所述第一开口在所述基板上的正投影至少部分重叠，或所述凸起位于所述第一开口远离所述非显示区的一侧。
在本申请的一种实施例中，所述高折射率层在所述凸起处的厚度大于所述高折射率层的其他部分的厚度。
在本申请的一种实施例中，所述高折射率层覆盖所述第一槽，或者，所述高折射率层的边界处于所述第一槽和所述显示区之间。
在本申请的一种实施例中，所述高折射率层还包括第二槽，且所述第二槽位于所述第一槽远离所述显示区的一侧；
所述高折射率层覆盖所述第二槽，或者，所述高折射率层的边界处于所述第二槽和所述显示区之间。
在本申请的一种实施例中，所述非显示区包括：用于弯折的弯折子区，所述第一槽设置在所述显示区和所述弯折子区之间。
在本申请的一种实施例中，所述第一槽两端延伸至所述显示面板的边界，并与所述显示面板的边界相接触。
在本申请的一种实施例中，所述高折射率层还包括：挡墙结构，所述挡墙结构设置在所述第一槽和所述第二槽之间；
所述高折射率层覆盖所述挡墙结构，或者，所述高折射率层的边界处于所述挡墙结构和所述显示区之间。
在本申请的一种实施例中，所述高折射率层包括连接于所述凸起两侧的第一部和第二部，所述第一部位于所述显示区内，所述第二部延伸至所述非显示区，所述第二部的顶面与所述低折射率层的距离在由所述凸起指向所述非显示区的方向上减小，所述第二部的顶面与所述低折射率层的距离大于所述第一部的顶面与所述低折射率层的距离。
在本申请的一种实施例中，所述第一部靠近所述低折射率层的一侧填充于多个所述开口内，所述第一部远离所述低折射率层一侧的表面为平面。
在本申请的一种实施例中，所述第一槽沿所述第一方向上的长度大于各所述开口沿所述第一方向上的长度。
根据本申请的上述目的，提供一种显示装置，所述显示装置包括所述显示面板，所述显示面板包括显示区以及位于所述显示区至少一侧的非显示区；
所述显示面板还包括：
基板：
发光层，设置于所述基板的一侧，所述发光层包括设置在所述显示区中的多个发光部；
低折射率层，设置于所述发光层远离所述基板的一侧，所述低折射率层包括呈阵列分布于所述显示区内并与多个所述发光部对应的多个开口、以及分布于所述非显示区内的第一槽；
高折射率层，设置于所述低折射率层远离所述基板的一侧，并填充多个所述开口，所述高折射率层的折射率大于所述低折射率层的折射率，且所述高折射率层远离所述低折射率层的一侧具有凸起；
其中，多个所述开口包括距离所述第一槽最近的第一开口，所述第一槽沿第一方向上到所述凸起顶端的距离大于所述第一槽沿所述第一方向上到所述第一开口的距离，且所述第一方向为所述非显示区指向所述显示区的方向。
在本申请的一种实施例中，所述凸起位于所述显示区内，所述凸起在所述基板上的正投影与所述第一开口在所述基板上的正投影至少部分重叠，或所述凸起位于所述第一开口远离所述非显示区的一侧。
在本申请的一种实施例中，所述高折射率层在所述凸起处的厚度大于所述高折射率层的其他部分的厚度。
在本申请的一种实施例中，所述高折射率层覆盖所述第一槽，或者，所述高折射率层的边界处于所述第一槽和所述显示区之间。
在本申请的一种实施例中，所述高折射率层还包括第二槽，且所述第二槽位于所述第一槽远离所述显示区的一侧；
所述高折射率层覆盖所述第二槽，或者，所述高折射率层的边界处于所述第二槽和所述显示区之间。
在本申请的一种实施例中，所述非显示区包括：用于弯折的弯折子区，所述第一槽设置在所述显示区和所述弯折子区之间。
在本申请的一种实施例中，所述第一槽两端延伸至所述显示面板的边界，并与所述显示面板的边界相接触。
在本申请的一种实施例中，所述高折射率层还包括：挡墙结构，所述挡墙结构设置在所述第一槽和所述第二槽之间；
所述高折射率层覆盖所述挡墙结构，或者，所述高折射率层的边界处于所述挡墙结构和所述显示区之间。
在本申请的一种实施例中，所述高折射率层包括连接于所述凸起两侧的第一部和第二部，所述第一部位于所述显示区内，所述第二部延伸至所述非显示区，所述第二部的顶面与所述低折射率层的距离在由所述凸起指向所述非显示区的方向上减小，所述第二部的顶面与所述低折射率层的距离大于所述第一部的顶面与所述低折射率层的距离。
 有益效果
相较于现有技术，在喷墨打印的制程中，在墨水流动成膜的边缘处，其厚度将会逐渐增大，到达顶点之后又逐渐降低，以在膜层边缘形成一凸起；本申请实施例通过将凸起顶端与第一槽之间的距离设置为大于第一开口与第一槽之间的距离，以使得膜层边缘形成的厚度最大处位于第一开口上或第一开口靠近显示区的一侧，进而可以保证位于凸起靠近显示区一侧的平坦部分皆位于显示区内，且凸起距离非显示区越远，则高折射率层对于非显示区的覆盖面积就越小，可以有效限制高折射率层的覆盖范围，进而可以节省非显示区的空间，以实现窄边框显示。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的显示面板的一种结构示意图；
图2为本申请实施例提供的显示面板的一种平面结构示意图；
图3为本申请实施例提供的显示面板的一种二切制程中的平面结构示意图；
图4为本申请实施例提供的显示面板的另一种平面结构示意图；
图5为本申请实施例提供的显示面板的另一种二切制程中的平面结构示意图；
图6为本申请实施例提供的显示面板的制作流程中的结构示意图；
图7为本申请实施例提供的显示面板的制作流程中的结构示意图。
 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他实施例，都属于本申请保护的范围。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供一种显示面板，请参照图1，该显示面板包括显示区AA以及位于显示区AA至少一侧的非显示区BA；此外，显示面板还包括基板10、发光层、低折射率层20以及高折射率层30。
其中，发光层设置于基板10的一侧，且发光层包括设置在显示区AA内的多个发光部62；低折射率层20设置于发光层远离基板10的一侧，低折射率层20包括呈阵列分布于显示区AA内并与多个发光部62对应的多个开口21以及分布于非显示区BA内的第一槽22；高折射率层30设置于低折射率层20远离基板10的一侧，并填充于多个开口21内，高折射率层30远离低折射率层20的一侧具有凸起31。
进一步地，多个开口21包括距离第一槽22最近的第一开口211，第一槽22沿第一方向X上到凸起31的距离大于第一槽22沿第一方向X到第一开口211的距离，且第一方向X为非显示区BA指向显示区AA的方向。具体地，参见图1，第一槽22沿第一方向X上到凸起31的距离L1，可以为第一槽22靠近显示区的侧壁到凸起31的间距，而一槽22沿第一方向X到第一开口211的距离L2，可以为第一槽22靠近显示区的侧壁到第一开口211靠近非显示区侧壁之间的间距，此时，L1大于L2。
在实施应用过程中，由于在喷墨打印时，在墨水流动成膜的边缘处，其厚度将会逐渐增大，到达顶点之后又逐渐降低，以在膜层边缘形成一凸起31；本申请实施例通过将凸起31顶端与第一槽22之间的距离设置为大于第一开口211与第一槽22之间的距离，以使得膜层边缘形成的厚度最大处位于第一开口211上或第一开口211靠近显示区AA的一侧，进而可以保证位于凸起31靠近显示区AA一侧的平坦部分皆位于显示区AA内，且凸起31距离非显示区BA越远，则高折射率层30对于非显示区BA的覆盖面积就越小，进而可以节省非显示区BA的空间，以实现窄边框显示。
具体地，请继续参照图1，在本申请实施例中，该显示面板包括显示区AA以及位于显示区AA至少一侧非显示区BA，需要说明的是，该非显示区BA可为显示面板的下边框区域。
显示面板还包括基板10、设置于基板10上的薄膜晶体管阵列层40、设置于薄膜晶体管阵列层40上的像素定义层50、设置于像素定义层50上的封装层70、设置于封装层70上的触控层、设置于触控层上的低折射率层20以及设置于低折射率层20上的高折射率层30。
其中，薄膜晶体管阵列层40包括设置于基板10上的薄膜晶体管器件41以及包覆薄膜晶体管器件41的间隔层，且间隔层包括设置于基板10上的缓冲层42、设置于缓冲层42上的钝化层43、设置于钝化层43上的栅极绝缘层44以及设置于栅极绝缘层44上的层间绝缘层45；薄膜晶体管器件41包括设置于缓冲层42上并被钝化层43覆盖的有源层、设置于钝化层43上并被栅极绝缘层44覆盖的栅极以及设置于栅极绝缘层44上并被层间绝缘层45覆盖的源极和漏极。此外，层间绝缘层45背向基板10的一侧为平坦表面，即层间绝缘层45还复用为平坦层，以利于后续工艺的进行。
显示面板还包括设置于层间绝缘层45上的多个阳极61，像素定义层50限定出与多个阳极61一一对应的多个像素开口，且每一像素开口对应露出一阳极61的上表面，显示面板还包括设置于像素定义层50上的发光层，且发光层包括对应各像素开口设置于各阳极61上的多个发光部62。
封装层70覆盖于像素定义层50上，并连续地覆盖多个像素开口以及多个发光部62上，其中，封装层70包括层叠设置于像素定义层50上的第一无机封装层71、第一有机封装层72以及第二无机封装层73。
触控层设置于封装层70上，且触控层包括设置于封装层70上的第一触控金属层81与第二触控金属层82，以及设置于第一触控金属层81与第二触控金属层82之间的绝缘层83。其中，本申请实施例提供的触控层可为互容式或自容式，若触控层为互容式，则第一触控金属层81可包括多个第一电极与多个第二电极，多个第一电极之间通过位于第一触控金属层81中的第一连接桥相连接，多个第二电极之间通过位于第二触控金属层82中的第二连接桥穿过绝缘层83进行连接。若触控层为自容式，则第一触控金属层81可包括阵列分布的多个触控电极，而第二触控金属层82可包括多个触控走线，且每一触控走线对应连接一触控电极；此外，若触控层为自容式，该触控层也可仅包含一层金属层，即该金属层包括多个触控电极以及位于相邻的触控电极之间的多个触控走线，且每一触控走线对应连接至一触控电极，且本申请实施例仅以上描述为例，但不限于此，具体触控层的类型和结构可根据实际需求进行选择。
低折射率层20设置于触控层上，且低折射率层20覆盖于显示区AA内并延伸至非显示区BA，其中，低折射率层20包括形成于显示区AA内的多个开口21以及形成于非显示区BA内的第一槽22，且多个开口21包括距离显示区BA最近的第一开口211，即在多个开口21中，第一开口211距离第一槽22最近。
需要说明的是，每一开口21的下方皆对应一像素开口，即每一开口21皆对应一发光部62，且开口21的截面形状可为倒梯形设置。
进一步地，高折射率层30设置于低折射率层20上，且高折射率层30同样覆盖于显示区AA内并延伸至非显示区BA，其中，高折射率层30填充于多个开口21内，以在多个开口21处形成多个微透镜单元，进而可以对其对应的发光部62起到聚光作用，提高其对应的发光部62的出光效果，以提高显示面板的出光效率。
具体地，高折射率层30的折射率大于低折射率层20的折射率，例如低折射率层20的折射率可为1.4至1.6，且低折射率层20的材料可包括具有低折射率的透光有机材料。如丙烯酸树脂、聚酰亚胺树脂、聚酰胺树脂和/或Alq3[三(8-羟基喹啉)铝]等；又例如高折射率层30的折射率可为1.61至1.8，且高折射率层30的材料可包括具有高折射率的透光有机材料。如聚(3,4-乙撑二氧噻吩)(PEDOT)、4,4'-双[N-(3-甲基苯基)-N-苯基氨基]联苯(TPD)、4,4',4”-三[(3-甲基苯基)苯基氨基]三苯胺(m-MTDATA)、1,3,5-三[N,N-双(2-甲基苯基)-氨基]苯(o-MTDAB)、1,3,5-三[N,N-双(3-甲基苯基)-氨基]苯(m-MTDAB)、1,3,5-三[N,N-双(4-甲基苯基)氨基]苯(p-MTDAB)、4,4'-双[N,N-双(3-甲基苯基)-氨基]二苯基甲烷(BPPM)、4,4'-二咔唑基-1,1'-联苯(CBP)、4,4',4”-三(N-咔唑)三苯胺(TCTA)、2,2',2”-(1,3,5-苯三基)三-[1-苯基-1H-苯并咪唑](TPBI)和/或3-(4-联苯基)-4-苯基-5-叔丁基苯基-1,2,4-三唑(TAZ)。
在本申请实施例中，高折射率层30可采用喷墨打印工艺进行制备，而墨水在流动过程中，由于表面张力的影响，墨水边缘处的厚度会逐渐增大，达到最大后又逐渐减小，以使得高折射率层30在显示区AA内形成一凸起31。可以理解的是，高折射率层30在凸起31处的厚度最大。
其中，高折射率层30覆盖第一槽22，或者，高折射率层30的边界处于第一槽22和显示区AA之间；第一槽22沿第一方向X到凸起31顶端的距离L1大于第一槽22沿第一方向X到第一开口211的距离L2，以使得凸起31可以设置得更远离第一槽22的位置，以限制高折射率层30的覆盖范围，进而可以有效控制高折射率层30在非显示区BA内的覆盖范围，可以减小非显示区BA的空间，以实现窄边框显示。
凸起31在基板10上的正投影与第一开口211在基板10上的正投影至少部分重叠，或凸起31位于第一开口211远离非显示区BA的一侧。
具体地，请结合图1以及图2，在本申请的一种实施例中，高折射率层30还包括第二槽23，且第二槽23位于第一槽22远离显示区AA的一侧。
在本申请实施例中，第一槽22与第二槽23沿第一方向X上的长度皆大于开口21沿第一方向X上的长度，且本申请实施例中将第一槽22与第二槽23的尺寸设置为大于开口21的尺寸，进而可以更加有效地阻挡制程中墨水的流动。
高折射率层30包括连接于凸起31两侧的第一部32与第二部33，第一部32覆盖于显示区AA内，第二部33延伸至非显示区BA。
第一部32靠近低折射率层20的一侧填充于多个开口21内，以形成多个微透镜，第一部32远离低折射率层20的一侧为平面，以提高出光效果，并提高膜层平坦度且有利于后续制程的进行。
其中，高折射率层30覆盖第二槽23，或者高折射率层30的边界处于第二槽23和显示区AA之间，即第二部33在低折射率层20上的正投影位于第二槽23的边界内，具体地，第二部33可仅覆盖第一槽22并截止于第一槽22处，或者第二部33可覆盖第一槽22与第二槽23并截止于第二槽23处。第二部33的顶面与低折射率层20的距离在由凸起31指向非显示区BA的方向上减小，第二部33的顶面与低折射率层20的距离大于第一部32的顶面与低折射率层20的距离，即第一部32的厚度小于第二部33的厚度。
另一方面，低折射率层20还包括位于第一槽22和第二槽23之间的挡墙结构24，且高折射率层30可覆盖挡墙结构24，或者，高折射率层30的边界处于挡墙结构24和显示区AA之间。
进一步地，非显示区BA还包括弯折子区以及位于弯折子区远离显示区AA一侧的绑定子区，且弯折子区用于进行弯折，以使得显示面板位于绑定子区的部分可以弯折至显示面板的背面以进行绑定，其中，第一槽22位于显示区AA与弯折子区之间，同理，第二槽23也位于显示区AA与弯折子区之间。
需要说明的是，考虑到出光效果，第一槽22沿第一方向X到第一开口211的距离L2不宜过小，且L2的优选范围为大于或等于700um；由于第二槽23远离显示区AA的一侧还具有绑定子区，考虑到不影响绑定制程，第二槽23距离绑定子区边界的距离L3也不宜过小，且L3的优选范围为大于或等于30um；L1大于或等于1200um，且L1还大于L2，以使得凸起31可以设置为更远离非显示区BA的位置，进而减小高折射率层30对非显示区BA的覆盖面积，可以减小边框宽度，实现窄边框显示，同时，本申请实施例对L1、L2以及L3的范围进行限制，以避免对显示面板的出光效果、绑定制程产生影响，提高显示面板的良率和显示效果。
进一步地，第一槽22的两端与显示面板的边界相接触，其中，第一槽22包括沿垂直于第一方向X排布的第一子槽221以及连接于第一子槽221与显示面板边界之间的第二子槽222，且第二子槽222位于第一子槽221的两侧，其中，第二子槽222呈曲线排列。
具体地，请结合图2和图3，其中，图3为显示面板处于还未进行二切制程的面板，且二切线即为本申请实施例提供的图示中的非显示区BA的边界线，且图2即为该面板经过二切之后的平面结构图，在本申请实施例中，第二子槽222与非显示区BA的边界之间的夹角范围为80°至100°之间，进而可以减小低折射率层20在二切过程中所受到的应力，防止膜层发生剥离。
优选的，第二子槽222与非显示区BA的边界之间的夹角为90°。
可以理解的是，第一槽22与非显示区BA边界之间的夹角为80°至100°之间，同理，第二槽23与非显示区BA边界之间的夹角同样为80°至100°之间，以进一步降低膜层发生剥离的概率。
此外，请参照图4以及图5，在本申请的另一种实施例中，其余上述实施例的区别之处在于，低折射率层20还包括第三槽25，且第三槽25位于第二槽23远离显示区AA的一侧。
在本实施例中，第三槽25与非显示区BA边界之间的夹角同样为80°至100°之间，以进一步降低膜层发生剥离的概率。
承上，本申请实施例通过将凸起31顶端与第一槽22之间的距离设置为大于第一开口211与第一槽22之间的距离，以使得膜层边缘形成的厚度最大处位于第一开口211上或第一开口211靠近显示区AA的一侧，进而可以保证位于凸起31靠近显示区AA一侧的平坦部分皆位于显示区AA内，且凸起31距离非显示区BA越远，则高折射率层30对于非显示区BA的覆盖面积就越小，可以有效限制高折射率层30的覆盖范围，进而可以节省非显示区BA的空间，以实现窄边框显示。
另外，本申请实施例还提供一种上述实施例中所述的显示面板的制作方法，请结合图1、图6以及图7，该制作方法包括以下步骤：
提供基板10，并可按照常规工艺在基板10上形成薄膜晶体管阵列层40、像素定义层50、阳极61、发光层、封装层70以及触控层。且上述结构皆可参照上述实施例中进行设置，在此不再赘述。
然后，在触控层上形成低折射率层20，并对低折射率层20进行图案化处理，以在低折射率层20位于显示区AA内的部分形成多个开口21、在低折射率层20位于非显示区BA内的部分形成第一槽22与第二槽23。
接着，采用高折射率材料在低折射率层20上形成高折射率层30，且高折射率层30可采用喷墨打印工艺进行制备，以在高折射率层30位于显示区AA内的部分形成一凸起31。
其中，高折射率层30的折射率大于低折射率层20的折射率，例如低折射率层20的折射率可为1.4至1.6，且低折射率层20的材料可包括具有低折射率的透光有机材料。如丙烯酸树脂、聚酰亚胺树脂、聚酰胺树脂和/或Alq3[三(8-羟基喹啉)铝]等；又例如高折射率层30的折射率可为1.61至1.8，且高折射率层30的材料可包括具有高折射率的透光有机材料。如聚(3,4-乙撑二氧噻吩)(PEDOT)、4,4'-双[N-(3-甲基苯基)-N-苯基氨基]联苯(TPD)、4,4',4”-三[(3-甲基苯基)苯基氨基]三苯胺(m-MTDATA)、1,3,5-三[N,N-双(2-甲基苯基)-氨基]苯(o-MTDAB)、1,3,5-三[N,N-双(3-甲基苯基)-氨基]苯(m-MTDAB)、1,3,5-三[N,N-双(4-甲基苯基)氨基]苯(p-MTDAB)、4,4'-双[N,N-双(3-甲基苯基)-氨基]二苯基甲烷(BPPM)、4,4'-二咔唑基-1,1'-联苯(CBP)、4,4',4”-三(N-咔唑)三苯胺(TCTA)、2,2',2”-(1,3,5-苯三基)三-[1-苯基-1H-苯并咪唑](TPBI)和/或3-(4-联苯基)-4-苯基-5-叔丁基苯基-1,2,4-三唑(TAZ)。
具体地，高折射率层30靠近低折射率层20的一侧填充于多个开口21内，且多个开口21包括距离非显示区BA最近的第一开口211，高折射率层30远离低折射率层20的一侧在显示区AA内形成有凸起31，通过控制工艺参数，以使得凸起31顶端与第一槽22之间的距离设置为大于第一开口211与第一槽22之间的距离，以使得膜层边缘形成的厚度最大处位于第一开口211上或第一开口211靠近显示区AA的一侧，进而可以保证位于凸起31靠近显示区AA一侧的平坦部分皆位于显示区AA内，且凸起31距离非显示区BA越远，则高折射率层30对于非显示区BA的覆盖面积就越小，可以有效限制高折射率层30的覆盖范围，进而可以节省非显示区BA的空间，以实现窄边框显示。
本申请实施例通过将凸起31顶端与第一槽22之间的距离设置为大于第一开口211与第一槽22之间的距离，以使得膜层边缘形成的厚度最大处位于第一开口211上或第一开口211靠近显示区AA的一侧，进而可以保证位于凸起31靠近显示区AA一侧的平坦部分皆位于显示区AA内，且凸起31距离非显示区BA越远，则高折射率层30对于非显示区BA的覆盖面积就越小，可以有效限制高折射率层30的覆盖范围，进而可以节省非显示区的空间，以实现窄边框显示。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板及显示装置进行了详细介绍，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技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示面板，所述显示面板包括显示区以及位于所述显示区至少一侧的非显示区；
    所述显示面板还包括：
    基板：
    发光层，设置于所述基板的一侧，所述发光层包括设置在所述显示区中的多个发光部；
    低折射率层，设置于所述发光层远离所述基板的一侧，所述低折射率层包括呈阵列分布于所述显示区内并与多个所述发光部对应的多个开口、以及分布于所述非显示区内的第一槽；
    高折射率层，设置于所述低折射率层远离所述基板的一侧，并填充多个所述开口，所述高折射率层的折射率大于所述低折射率层的折射率，且所述高折射率层远离所述低折射率层的一侧具有凸起；
    其中，多个所述开口包括距离所述第一槽最近的第一开口，所述第一槽沿第一方向上到所述凸起顶端的距离大于所述第一槽沿所述第一方向上到所述第一开口的距离，且所述第一方向为所述非显示区指向所述显示区的方向。
  2. 根据权利要求1所述的显示面板，其中，所述凸起位于所述显示区内，所述凸起在所述基板上的正投影与所述第一开口在所述基板上的正投影至少部分重叠，或所述凸起位于所述第一开口远离所述非显示区的一侧。
  3. 根据权利要求2所述的显示面板，其中，所述高折射率层在所述凸起处的厚度大于所述高折射率层的其他部分的厚度。
  4. 根据权利要求1所述的显示面板，其中，所述高折射率层覆盖所述第一槽，或者，所述高折射率层的边界处于所述第一槽和所述显示区之间。
  5. 根据权利要求4所述的显示面板，其中，所述高折射率层还包括第二槽，且所述第二槽位于所述第一槽远离所述显示区的一侧；
    所述高折射率层覆盖所述第二槽，或者，所述高折射率层的边界处于所述第二槽和所述显示区之间。
  6. 根据权利要求5所述的显示面板，其中，所述非显示区包括：用于弯折的弯折子区，所述第一槽设置在所述显示区和所述弯折子区之间。
  7. 根据权利要求6所述的显示面板，其中，所述第一槽两端延伸至所述显示面板的边界，并与所述显示面板的边界相接触。
  8. 根据权利要求5所述的显示面板，其中，所述高折射率层还包括：挡墙结构，所述挡墙结构设置在所述第一槽和所述第二槽之间；
    所述高折射率层覆盖所述挡墙结构，或者，所述高折射率层的边界处于所述挡墙结构和所述显示区之间。
  9. 根据权利要求1所述的显示面板，其中，所述高折射率层包括连接于所述凸起两侧的第一部和第二部，所述第一部位于所述显示区内，所述第二部延伸至所述非显示区，所述第二部的顶面与所述低折射率层的距离在由所述凸起指向所述非显示区的方向上减小，所述第二部的顶面与所述低折射率层的距离大于所述第一部的顶面与所述低折射率层的距离。
  10. 根据权利要求9所述的显示面板，其中，所述第一部靠近所述低折射率层的一侧填充于多个所述开口内，所述第一部远离所述低折射率层一侧的表面为平面。
  11. 根据权利要求1所述的显示面板，其中，所述第一槽沿所述第一方向上的长度大于各所述开口沿所述第一方向上的长度。
  12. 一种显示装置，所述显示装置包括显示面板，所述显示面板包括显示区以及位于所述显示区至少一侧的非显示区；
    所述显示面板还包括：
    基板：
    发光层，设置于所述基板的一侧，所述发光层包括设置在所述显示区中的多个发光部；
    低折射率层，设置于所述发光层远离所述基板的一侧，所述低折射率层包括呈阵列分布于所述显示区内并与多个所述发光部对应的多个开口、以及分布于所述非显示区内的第一槽；
    高折射率层，设置于所述低折射率层远离所述基板的一侧，并填充多个所述开口，所述高折射率层的折射率大于所述低折射率层的折射率，且所述高折射率层远离所述低折射率层的一侧具有凸起；
    其中，多个所述开口包括距离所述第一槽最近的第一开口，所述第一槽沿第一方向上到所述凸起顶端的距离大于所述第一槽沿所述第一方向上到所述第一开口的距离，且所述第一方向为所述非显示区指向所述显示区的方向。
  13. 根据权利要求12所述的显示装置，其中，所述凸起位于所述显示区内，所述凸起在所述基板上的正投影与所述第一开口在所述基板上的正投影至少部分重叠，或所述凸起位于所述第一开口远离所述非显示区的一侧。
  14. 根据权利要求13所述的显示装置，其中，所述高折射率层在所述凸起处的厚度大于所述高折射率层的其他部分的厚度。
  15. 根据权利要求12所述的显示装置，其中，所述高折射率层覆盖所述第一槽，或者，所述高折射率层的边界处于所述第一槽和所述显示区之间。
  16. 根据权利要求15所述的显示装置，其中，所述高折射率层还包括第二槽，且所述第二槽位于所述第一槽远离所述显示区的一侧；
    所述高折射率层覆盖所述第二槽，或者，所述高折射率层的边界处于所述第二槽和所述显示区之间。
  17. 根据权利要求16所述的显示装置，其中，所述非显示区包括：用于弯折的弯折子区，所述第一槽设置在所述显示区和所述弯折子区之间。
  18. 根据权利要求17所述的显示装置，其中，所述第一槽两端延伸至所述显示面板的边界，并与所述显示面板的边界相接触。
  19. 根据权利要求16所述的显示装置，其中，所述高折射率层还包括：挡墙结构，所述挡墙结构设置在所述第一槽和所述第二槽之间；
    所述高折射率层覆盖所述挡墙结构，或者，所述高折射率层的边界处于所述挡墙结构和所述显示区之间。
  20. 根据权利要求12所述的显示装置，其中，所述高折射率层包括连接于所述凸起两侧的第一部和第二部，所述第一部位于所述显示区内，所述第二部延伸至所述非显示区，所述第二部的顶面与所述低折射率层的距离在由所述凸起指向所述非显示区的方向上减小，所述第二部的顶面与所述低折射率层的距离大于所述第一部的顶面与所述低折射率层的距离。
PCT/CN2021/140233 2021-12-13 2021-12-21 显示面板及显示装置 WO2023108737A1 (zh)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115050793B (zh) * 2022-06-14 2023-08-04 武汉华星光电半导体显示技术有限公司 显示面板
WO2024021053A1 (zh) * 2022-07-29 2024-02-01 京东方科技集团股份有限公司 显示面板、显示面板的制造方法以及显示装置
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190067394A1 (en) * 2017-08-28 2019-02-28 Apple Inc. Organic Light-Emitting Diode Displays with Reflectors
CN111599850A (zh) * 2020-06-01 2020-08-28 上海天马有机发光显示技术有限公司 一种有机发光显示面板及其制备方法、显示装置
CN111613628A (zh) * 2020-06-04 2020-09-01 上海天马有机发光显示技术有限公司 一种有机发光显示面板及显示装置
CN112885879A (zh) * 2021-01-20 2021-06-01 京东方科技集团股份有限公司 显示基板及显示装置
CN113141779A (zh) * 2019-11-20 2021-07-20 京东方科技集团股份有限公司 显示基板及其制作方法和显示装置
CN113394242A (zh) * 2021-06-15 2021-09-14 武汉天马微电子有限公司 显示面板及显示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6275418B2 (ja) * 2013-09-03 2018-02-07 株式会社ジャパンディスプレイ 液晶表示装置
CN110148617A (zh) * 2019-05-30 2019-08-20 京东方科技集团股份有限公司 Oled面板、oled面板的制作方法和显示装置
KR20210145028A (ko) * 2020-05-22 2021-12-01 삼성디스플레이 주식회사 표시 장치
CN113178536B (zh) * 2021-04-23 2023-03-28 京东方科技集团股份有限公司 显示基板以及显示装置
CN113314692B (zh) * 2021-05-28 2023-01-13 京东方科技集团股份有限公司 显示基板及其制作方法、显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190067394A1 (en) * 2017-08-28 2019-02-28 Apple Inc. Organic Light-Emitting Diode Displays with Reflectors
CN113141779A (zh) * 2019-11-20 2021-07-20 京东方科技集团股份有限公司 显示基板及其制作方法和显示装置
CN111599850A (zh) * 2020-06-01 2020-08-28 上海天马有机发光显示技术有限公司 一种有机发光显示面板及其制备方法、显示装置
CN111613628A (zh) * 2020-06-04 2020-09-01 上海天马有机发光显示技术有限公司 一种有机发光显示面板及显示装置
CN112885879A (zh) * 2021-01-20 2021-06-01 京东方科技集团股份有限公司 显示基板及显示装置
CN113394242A (zh) * 2021-06-15 2021-09-14 武汉天马微电子有限公司 显示面板及显示装置

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