WO2020237725A1 - 显示面板及其制备方法 - Google Patents

显示面板及其制备方法 Download PDF

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Publication number
WO2020237725A1
WO2020237725A1 PCT/CN2019/090807 CN2019090807W WO2020237725A1 WO 2020237725 A1 WO2020237725 A1 WO 2020237725A1 CN 2019090807 W CN2019090807 W CN 2019090807W WO 2020237725 A1 WO2020237725 A1 WO 2020237725A1
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layer
quantum dot
area
color film
sawtooth
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PCT/CN2019/090807
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English (en)
French (fr)
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彭文祥
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深圳市华星光电半导体显示技术有限公司
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Priority to US16/612,966 priority Critical patent/US10943956B2/en
Publication of WO2020237725A1 publication Critical patent/WO2020237725A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H10K50/115—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
    • 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
    • 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
    • H10K59/88—Dummy elements, i.e. elements having non-functional features

Definitions

  • the invention relates to the field of display, in particular to a display panel and a preparation method thereof.
  • Quantum dot (QD, Quantum Dot) material has the advantages of high luminous purity, adjustable luminous wavelength, and stable material. Utilizing these advantages of quantum dots can greatly increase the color gamut of flat panel displays.
  • the current applications of quantum dots in flat panel displays mainly focus on making red and green quantum dots into engineering plastic films (QD film) or glass tube (QD tube) and used in TFT-LCD backlight. Because this kind of technology is still based on TFT-LCD technology, it limits the application of quantum dots in the field of thinning.
  • the QD-OLED structure display uses blue OLED as the lower backlight, and the upper layer has red and green quantum dots and corresponding color filters, which can not only obtain the advantages of autonomous light emission and thinness of OLED displays, but also combine quantum dots
  • the high color gamut of the material improves the display effect of the picture.
  • This structure utilizes the photoluminescence characteristics of quantum dots to excite the red and green quantum dots to emit monochromatic red and green light through the blue OLED of the backlight, and then combine the blue light emitted by the blue OLED itself to display a full-color picture with a high color gamut.
  • the color film of the quantum dots in the QD-OLED structure display can be made by IJP (Inkjet Printing) inkjet printing method.
  • IJP Inkjet Printing
  • the technical advantage of IJP is that it can control the position and volume of the ink dripped, so that it can be printed into a film at the pixel level. Therefore, this technology is suitable for large-size and high-precision display manufacturing.
  • the use of IJP technology to make quantum dot color films can greatly reduce the production cost of the panel.
  • QD filmed by IJP printing Layer is directly related to the light conversion efficiency of the device, so optimizing the QD Layer structure and materials is a crucial method to improve the light conversion efficiency.
  • FIG. 1 it is a cross-sectional structure diagram of a prior art QD-OLED, and its main body can be roughly divided into blue OLED 100 (Blue OLED), thin film encapsulation layer 200 (TFE, Thin Film Encapsulation), color film layer (CF, Color Filter) and quantum dot layer (QD Layer)
  • Blue OLED blue OLED
  • TFE thin film encapsulation layer 200
  • CF Color Filter
  • QD Layer quantum dot layer
  • the purpose of the present invention is to solve the technical problem of low conversion efficiency of blue light in the existing quantum dot OLED.
  • the present invention provides a display panel including: a blue OLED layer; a thin-film encapsulation layer arranged on the surface of one side of the blue OLED layer; a quantum dot color film layer arranged on the thin-film encapsulation layer away from the The surface on the side of the blue OLED layer; and the sawtooth encapsulation layer, which is provided on the surface of the quantum dot color film layer near the side of the thin film encapsulation layer; wherein, the sawtooth encapsulation layer includes a planar encapsulation layer; and sawtooth, protruding On the surface of the flat encapsulation layer facing the blue OLED layer.
  • the quantum dot color film layer includes: a quantum dot layer, which is provided on the surface of the thin film encapsulation layer away from the blue OLED layer; and a color film layer, which is provided on the quantum dot layer away from the thin film The surface on one side of the encapsulation layer.
  • the quantum dot layer includes a red quantum dot area, a green quantum dot area and a transparent area.
  • the sawtooth encapsulation layer includes a sawtooth area and a plane area, the sawtooth area is arranged opposite to the red quantum dot area and the green quantum dot area; the plane area is arranged opposite to the transparent area.
  • the color film layer includes a red filter, a green filter, and a blue filter, and the red filter is arranged opposite to the red quantum dot area; the green filter is opposite to the red quantum dot area; The green quantum dot area is arranged oppositely; the blue filter is arranged opposite to the transparent area.
  • the material of the saw-tooth encapsulation layer is transparent photoresist material or transparent polyimide.
  • the present invention also provides a method for manufacturing a display panel, which includes the following steps: a quantum dot color film layer setting step, a sawtooth encapsulation layer preparation step, and a blue OLED layer setting step.
  • a quantum dot color film layer is provided in the step of setting the quantum dot color film layer; in the step of preparing the sawtooth encapsulation layer, a sawtooth encapsulation layer is prepared on the surface of the quantum dot color film layer;
  • the blue OLED layer setting step a blue OLED layer is provided so that the blue OLED layer and the quantum dot color film layer are disposed opposite to each other; and the thin film encapsulation layer preparation step is that the blue OLED layer faces the quantum dot color film
  • a thin film encapsulation layer is prepared on the surface of one side of the layer; wherein, in the step of preparing the sawtooth encapsulation layer, the sawtooth encapsulation layer includes a flat encapsulation layer and sawtooths, and the
  • the step of preparing the sawtooth layer includes the following steps: a step of preparing a transparent film layer, a step of setting a template, a step of light curing, and a step of removing the template.
  • a transparent film layer is prepared on the surface of the quantum dot color film layer; in the template setting step, a template is pressed on the upper surface of the transparent film layer;
  • the transparent film layer is subjected to light curing treatment; in the template removing step, the template is removed.
  • the step of setting the quantum dot color film layer includes the following steps: a step of setting a color film layer and a step of setting a quantum dot layer.
  • a color filter layer is provided on a substrate, and the color filter layer is provided with a red filter, a green filter, and a blue filter; on the quantum dot layer
  • a quantum dot layer is provided on the color film layer, and the quantum dot layer is provided with a red quantum dot region, a green quantum dot region, and a transparent region; wherein the red quantum dot region and the red filter
  • the light sheets are arranged oppositely, the green quantum dot area is arranged opposite to the green filter, and the transparent area is arranged opposite to the blue filter.
  • the lower surface of the template is provided with a sawtooth pattern and a flat pattern; wherein, the sawtooth pattern is arranged opposite to the red quantum dot region and the green quantum dot region, and The plane pattern is arranged opposite to the transparent area.
  • the technology of the present invention is to laminate the transparent film under the quantum dot color film layer to print a zigzag packaging layer
  • the zigzag packaging layer includes a zigzag area and a plane area, the zigzag area and the red quantum dot area of the quantum dot layer and
  • the green quantum dot area is arranged oppositely, the flat area and the transparent area are arranged oppositely, so that the incident light is refracted in the sawtooth area, and the time path length increases when passing through the red quantum dot area and the green quantum dot area, which improves the conversion efficiency of blue light.
  • the sawtooth encapsulation layer can still block water and oxygen and protect the quantum dot color film layer.
  • FIG. 1 is a schematic structural diagram of a display panel in the prior art
  • FIG. 2 is a schematic structural diagram of a display panel according to an embodiment of the invention.
  • FIG. 3 is a schematic diagram of blue light in the quantum dot color film layer according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for manufacturing a display panel according to an embodiment of the invention.
  • FIG. 6 is a flow chart of the steps of preparing the sawtooth packaging layer according to an embodiment of the present invention.
  • Quantum dot color film layer 51, quantum dot layer; 52, color film layer;
  • Red quantum dot area 512. Green quantum dot area; 513. Transparent area;
  • the component can be directly placed on the other component; there may also be an intermediate component on which the component is placed , And the intermediate component is placed on another component.
  • a component is described as “installed to” or “connected to” another component, both can be understood as directly “installed” or “connected”, or a component is “installed to” or “connected to” through an intermediate component Another component.
  • this embodiment provides a display panel including: a substrate 1, a blue OLED layer 2, a thin film encapsulation layer 3, a sawtooth encapsulation layer 4, and a quantum dot color film layer 5.
  • the blue OLED layer 2 is disposed on the upper surface of the substrate 1.
  • the blue OLED layer 2 includes a blue light source 21, and the blue light source 21 emits blue light.
  • the thin film encapsulation layer 3 is arranged on the upper surface of the blue OLED layer 2 to block water and oxygen and protect the blue OLED layer 2.
  • the quantum dot color film layer 5 is arranged above the thin film encapsulation layer 3 and opposite to the blue OLED layer 2.
  • the lower surface of the quantum dot color film layer 5 is provided with a sawtooth encapsulation layer 4.
  • the sawtooth encapsulation layer 4 includes a plane encapsulation layer and sawtooths. The sawtooths protrude from the plane encapsulation layer and face the thin film encapsulation layer 3. It is a sawtooth area and a plane area.
  • the material of the sawtooth encapsulation layer 4 is a transparent photoresist material or a transparent polyimide PI.
  • the serrated encapsulation layer 4 can still block water and oxygen from the outside and protect the quantum dot color film layer 5.
  • the quantum dot material of the quantum dot color film layer 5 has anisotropy, which can improve the viewing angle of the blue OLED layer 2.
  • the quantum dot color film layer 5 includes a quantum dot layer 51 and a color film layer 52.
  • the quantum dot layer 51 is provided on the upper surface of the zigzag encapsulation layer 4.
  • the quantum dot layer 51 includes a red quantum dot area 511, a green quantum dot area 512, and a transparent area 513, a red quantum dot area 511, a green quantum dot area 512, and the zigzag
  • the transparent area 513 is arranged opposite to the plane area, and the red quantum dot area 511, the green quantum dot area 512, and the transparent area 513 are arranged opposite to the blue light source 21 to ensure that the blue light emitted by the blue light source 21 can pass through
  • the red quantum dot area 511, the green quantum dot area 512, and the transparent area 513 are arranged opposite to the blue light source 21 to ensure that the blue light emitted by the blue light source 21 can pass through
  • the red quantum dot area 511, the green quantum dot area 512, and the transparent area 513 are arranged opposite to the blue light source 21 to ensure that the blue light e
  • the color filter layer 52 is disposed on the upper surface of the quantum dot layer 51, and the color filter layer 52 includes a red filter 521, a green filter 522 and a blue filter 523.
  • the red filter 521 is arranged opposite to the red quantum dot area 511
  • the green filter 522 is arranged opposite to the green quantum dot area 512
  • the blue filter 523 is arranged opposite to the transparent area 513 to ensure that the blue light source 21 emits light. After the blue light passes through the quantum dot layer 51, red light, green light and blue light are emitted from the color film layer 52.
  • blue light is emitted from the blue OLED layer because the transparent area 513 of the quantum dot layer 5 does not hinder light, and the zigzag encapsulation layer 4 under the transparent area 513 is a flat area, which does not generate incident light. Any effect, so the light can be emitted directly, after passing through the blue filter 523, it will emit blue light.
  • the other part is incident from the zigzag area under the red quantum dot area 511 and the green quantum dot area 512. Since the zigzag has a triangular shape and has a certain refraction effect on light, this part of the light is refracted through the zigzag area, compared to the transparent area.
  • the optical path of the light emitted from the area 513 and the light emitted from the quantum dot layer 51 is significantly increased, which can improve the conversion efficiency of blue light.
  • the technical effect of the display panel of this embodiment is that the thin film encapsulation layer under the quantum dot color film layer is changed to a sawtooth encapsulation layer, the sawtooth encapsulation layer includes a sawtooth area and a plane area, the sawtooth area and the quantum dot layer
  • the red quantum dot area and the green quantum dot area are arranged opposite to each other.
  • the plane area and the transparent area are arranged opposite to each other, so that the incident light is refracted in the sawtooth area, and the time path length increases after passing through the red quantum dot area and the green quantum dot area, and improves the blue light
  • the zigzag encapsulation layer can still block water and oxygen and protect the quantum dot color film layer.
  • the present invention also provides a method for manufacturing the above-mentioned display panel, including steps S1 to S4.
  • the quantum dot color film layer setting step is to prepare a quantum dot color film layer on a substrate, and the quantum dot color film layer setting step includes steps S11 to S12 (see FIG. 5).
  • a color film layer is arranged on a substrate, and the color film layer is provided with a red filter, a green filter and a blue filter.
  • S12 Quantum dot layer setting step a quantum dot layer is arranged on the color film layer, the quantum dot layer is provided with a red quantum dot area, a green quantum dot area and a transparent area, so that the red quantum dot area is The red filter is arranged opposite, the green quantum dot area is arranged opposite to the green filter, and the transparent area is arranged opposite to the blue filter to ensure that the incident blue light can pass through the red
  • the quantum dot area emits red light, after passing through the green quantum dot area, it emits green light, and after passing through the transparent area, it emits blue light.
  • a sawtooth encapsulation layer is prepared on the upper surface of the quantum dot layer to refract incident light and block external water and oxygen.
  • the preparation step of the sawtooth encapsulation layer includes the following steps S21 to S24 (see FIG. 6).
  • a transparent photoresist material or a transparent polyimide material is coated on the surface of one side of the quantum dot color film layer to form a transparent film layer.
  • S22 template setting step pressing a template on the upper surface of the transparent film layer, the lower surface of the template is provided with a sawtooth pattern and a plane pattern, wherein the sawtooth pattern is related to the red quantum dot area and the green quantum dot The areas are arranged oppositely, and the plane pattern is arranged opposite to the transparent area.
  • the light curing step is to perform ultraviolet light curing treatment on the transparent film layer.
  • template removal step removing the template to form a sawtooth packaging layer.
  • the saw-tooth encapsulation layer includes a saw-tooth area and a plane area, so that incident light is refracted when it is incident on the saw-tooth layer, and the optical path of the refracted light in the red quantum dot area and the green quantum dot area is increased to improve Conversion efficiency of blue light.
  • the sawtooth encapsulation layer can still block water and oxygen and protect the quantum dot color film layer.
  • the blue OLED layer setting step is to set a blue OLED layer such that the blue OLED layer and the quantum dot color film layer are arranged oppositely, the blue OLED layer is provided with a blue light source, the blue light source and the red quantum The dot area, the green quantum dot area, and the transparent area are arranged relative to each other to ensure that the light emitted by the blue light source can enter the red quantum dot area, the green quantum dot area, and the transparent area to increase light The light rate.
  • a thin-film encapsulation layer is prepared on the surface of the blue OLED layer facing the quantum dot color film layer, and the thin-film encapsulation layer is used to block external water and oxygen, and can protect the blue OLED Floor.
  • the technical effect of the manufacturing method of the display panel of this embodiment is that the transparent film under the quantum dot color film layer is laminated to print a sawtooth encapsulation layer.
  • the sawtooth encapsulation layer includes a sawtooth area and a plane area, and the sawtooth area and The red quantum dot area and the green quantum dot area of the quantum dot layer are arranged opposite to each other, and the plane area and the transparent area are arranged opposite to each other, so that incident light is refracted in the sawtooth area, and the time path increases when passing through the red quantum dot area and the green quantum dot area , Improve the conversion efficiency of blue light, and at the same time, the sawtooth encapsulation layer can still block water and oxygen and protect the quantum dot color film layer.

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  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

本发明提供一种显示面板及其制备方法，所述显示面板包括蓝光OLED层、薄膜封装层以及量子点彩膜层；其中，所述量子点彩膜层靠近所述薄膜封装层一侧的表面设有锯齿层。所述显示面板的制备方法包括量子点彩膜层设置步骤、锯齿层制备步骤、蓝光OLED层设置步骤以及薄膜封装层制备步骤。本发明的技术效果在于，量子点彩膜层表面设有锯齿封装层，使得蓝光发生折射，增加蓝光在量子点层中的光程，提高蓝光的光转换效率。

Description

显示面板及其制备方法 技术领域
本发明涉及显示领域，特别涉及一种显示面板及其制备方法。
 背景技术
量子点（QD，Quantum Dot）材料具有发光纯度高，发光波长可调，材料稳定等优点。利用量子点的这些优势可大幅度提高平板显示器的色域。目前现有的量子点在平板显示器中的应用主要集中于将红绿量子点制作成工程塑料薄膜（QD film）或玻璃管（QD tube）并用于TFT-LCD背光源中。由于该种技术还是基于TFT-LCD技术，限制了量子点在薄型化领域的应用。
QD-OLED结构显示器利用蓝光OLED当做下层背光源，再搭配上层带有红、绿量子点及相应的彩色滤光片，进而不仅可以获得OLED显示器的自主发光和薄型化的优点还能够结合量子点材料的高色域特性来提高画面的显示效果。该结构利用量子点的光致发光特点，通过背光源的蓝光OLED来激发红绿量子点发出单色的红绿光，再搭配蓝光OLED自身发出的蓝光从而显示出高色域的全彩画面。
QD-OLED结构显示器中量子点的彩膜可用IJP（Inkjet Printing）喷墨打印方式来制作。IJP的技术优势在于可以控制滴下墨水的位置及体积大小，从而能够在像素级别的区域进行打印成膜。因而该种技术适用于大尺寸和高精度的显示器制造中。此外，利用IJP技术来制作量子点彩膜能够大大降低面板的生产成本。因IJP打印成膜的QD Layer直接关系到器件的光转换效率，所以对QD Layer结构和材料进行优化是提高光转换效率至关重要的一种方法。
如图1所示，为现有技术的QD-OLED的剖面结构图，其主体大致可以分为蓝光OLED100（Blue OLED）、薄膜封装层200（TFE，Thin Film Encapsulation）、彩膜层（CF，Color Filter）和量子点层（QD Layer）四大组成部分，其中CF和QD Layer合在一起称为量子点彩膜层300（QDCF）。
 技术问题
本发明的目的在于，解决现有的量子点OLED中蓝光光转换效率低的技术问题。
 技术解决方案
为实现上述目的，本发明提供一种显示面板，包括：蓝光OLED层；薄膜封装层，设于所述蓝光OLED层一侧的表面；量子点彩膜层，设于所述薄膜封装层远离所述蓝光OLED层一侧的表面；以及锯齿封装层，设于所述量子点彩膜层靠近所述薄膜封装层一侧的表面；其中，所述锯齿封装层包括平面封装层；以及锯齿，突出于所述平面封装层朝向所述蓝光OLED层一侧的表面。
进一步地，所述量子点彩膜层包括：量子点层，设于所述薄膜封装层远离所述蓝光OLED层一侧的表面；以及彩膜层，设于所述量子点层远离所述薄膜封装层一侧的表面。
进一步地，所述量子点层包括红色量子点区、绿色量子点区以及透明区。
进一步地，所述锯齿封装层包括锯齿区及平面区，所述锯齿区与所述红色量子点区及绿色量子点区相对设置；所述平面区与所述透明区相对设置。
进一步地，所述彩膜层包括红色滤光片、绿色滤光片及蓝色滤光片，所述红色滤光片与所述红色量子点区相对设置；所述绿色滤光片与所述绿色量子点区相对设置；所述蓝色滤光片与所述透明区相对设置。
进一步地，所述锯齿封装层的材质为透明光阻材料或透明聚酰亚胺。
为实现上述目的，本发明还提供一种显示面板的制备方法，包括以下步骤：量子点彩膜层设置步骤、锯齿封装层制备步骤及蓝光OLED层设置步骤。在所述量子点彩膜层设置步骤中，设置一量子点彩膜层；在所述锯齿封装层制备步骤中，在所述量子点彩膜层的表面制备出一锯齿封装层；在所述蓝光OLED层设置步骤中，设置一蓝光OLED层，使得所述蓝光OLED层与所述量子点彩膜层相对设置；以及薄膜封装层制备步骤，在所述蓝光OLED层朝向所述量子点彩膜层一侧的表面制备出一薄膜封装层；其中，在所述锯齿封装层制备步骤中，所述锯齿封装层包括平面封装层及锯齿，所述锯齿突出于所述平面封装层，且朝向所述蓝光OLED层一侧的表面。
进一步地，所述锯齿层制备步骤包括以下步骤：透明膜层制备步骤、模板设置步骤、光固化步骤及模板移除步骤。在所述透明膜层制备步骤中，在所述量子点彩膜层一侧的表面制备出一透明膜层；在所述模板设置步骤中，在所述透明膜层上表面压上模板；在所述中光固化步骤，对所述透明膜层进行光固化处理；在所述模板移除步骤中，移除所述模板。
进一步地，所述量子点彩膜层设置步骤包括以下步骤：彩膜层设置步骤及量子点层设置步骤。在所述彩膜层设置步骤中，在一基板上设置一彩膜层，所述彩膜层内设有红色滤光片、绿色滤光片及蓝色滤光片；在所述量子点层设置步骤中，在所述彩膜层上设置一量子点层，所述量子点层内设有红色量子点区、绿色量子点区及透明区；其中所述红色量子点区与所述红色滤光片相对设置，所述绿色量子点区与所述绿色滤光片相对设置，所述透明区与所述蓝色滤光片相对设置。
进一步地，在所述模板设置步骤中，所述模板的下表面设有锯齿图案及平面图案；其中，所述锯齿图案与所述红色量子点区及所述绿色量子点区相对设置，所述平面图案与所述透明区相对设置。
 有益效果
本发明的技术在于，将量子点彩膜层下方的透明膜层压印出锯齿封装层，所述锯齿封装层包括锯齿区及平面区，所述锯齿区与量子点层的红色量子点区及绿色量子点区相对设置，所述平面区与透明区相对设置，使得入射光在所述锯齿区被折射，经过红色量子点区及绿色量子点区时光程增加，提高蓝光的转换效率，同时，所述锯齿封装层仍旧可以阻隔水氧，保护量子点彩膜层。
 附图说明
图1为现有技术的显示面板的结构示意图；
图2为本发明实施例所述的显示面板的结构示意图；
图3为本发明实施例所述蓝光在所述量子点彩膜层中的光线示意图；
图4为本发明实施例所述显示面板的制备方法的流程图；
图5为本发明实施例所述量子点彩膜层设置步骤的流程图；
图6为本发明实施例所述锯齿封装层制备步骤的流程图。
部分组件标识如下：
100、蓝光OLED；200、薄膜封装层；300、量子点彩膜层；
1、基板；
2、蓝光OLED层；21、蓝光光源；
3、薄膜封装层；
4、锯齿封装层；
5、量子点彩膜层；51、量子点层；52、彩膜层；
511、红色量子点区；512、绿色量子点区；513、透明区；
521、红色滤光片；522、绿色滤光片；523、蓝色滤光片。
 本发明的最佳实施方式
以下结合说明书附图详细说明本发明的优选实施例，以向本领域中的技术人员完整介绍本发明的技术内容，以举例证明本发明可以实施，使得本发明公开的技术内容更加清楚，使得本领域的技术人员更容易理解如何实施本发明。然而本发明可以通过许多不同形式的实施例来得以体现，本发明的保护范围并非仅限于文中提到的实施例，下文实施例的说明并非用来限制本发明的范围。
本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是附图中的方向，本文所使用的方向用语是用来解释和说明本发明，而不是用来限定本发明的保护范围。
在附图中，结构相同的部件以相同数字标号表示，各处结构或功能相似的组件以相似数字标号表示。此外，为了便于理解和描述，附图所示的每一组件的尺寸和厚度是任意示出的，本发明并没有限定每个组件的尺寸和厚度。
当某些组件，被描述为“在”另一组件“上”时，所述组件可以直接置于所述另一组件上；也可以存在一中间组件，所述组件置于所述中间组件上，且所述中间组件置于另一组件上。当一个组件被描述为“安装至”或“连接至”另一组件时，二者可以理解为直接“安装”或“连接”，或者一个组件通过一中间组件“安装至”或“连接至”另一个组件。
如图2所示，本实施例提供一种显示面板，包括：基板1、蓝光OLED层2、薄膜封装层3、锯齿封装层4及量子点彩膜层5。
蓝光OLED层2设于基板1上表面，蓝光OLED层2包括蓝光光源21，蓝光光源21发射蓝光。
薄膜封装层3设于蓝光OLED层2的上表面，用以阻隔水氧，保护蓝光OLED层2。
量子点彩膜层5设于薄膜封装层3上方，与蓝光OLED层2相对设置。量子点彩膜层5的下表面设有锯齿封装层4，锯齿封装层4包括平面封装层及锯齿，所述锯齿突出于所述平面封装层，且朝向薄膜封装层3，锯齿封装层4分为锯齿区及平面区。锯齿封装层4的材质为透明光阻材料或透明聚酰亚胺PI。锯齿封装层4依旧可以阻隔外界水氧，保护量子点彩膜层5。量子点彩膜层5的量子点材料具有各向异性，可提升蓝光OLED层2的视角。量子点彩膜层5包括量子点层51及彩膜层52。
量子点层51设于锯齿封装层4的上表面，量子点层51包括红色量子点区511、绿色量子点区512以及透明区513，红色量子点区511、绿色量子点区512与所述锯齿区相对设置，透明区513与所述平面区相对设置，且红色量子点区511、绿色量子点区512以及透明区513与蓝光光源21相对设置，用以保证蓝光光源21发射出的蓝光可经过红色量子点区511、绿色量子点区512以及透明区513。
彩膜层52设于量子点层51的上表面，彩膜层52包括红色滤光片521、绿色滤光片522以及蓝色滤光片523。红色滤光片521与红色量子点区511相对设置，绿色滤光片522与绿色量子点区512相对设置，蓝色滤光片523与透明区513相对设置，用以保证蓝光光源21发射出的蓝光经过量子点层51后从彩膜层52出射出红光、绿光及蓝光。
如图3所示，从蓝光OLED层发射出蓝光，因为量子点层5的透明区513对光线无阻碍，且透明区513下方的锯齿封装层4为平面区，所述平面区不对入射光产生任何效果，所以光线可直接出射，经过蓝色滤光片523后出射为蓝光。另一部分从红色量子点区511及绿色量子点区512下方的锯齿区入射，由于锯齿为三角形状，对光线有一定的折射作用，所以这一部分光经过所述锯齿区折射，相比于在透明区513出射的光线，在量子点层51出射的光线的光程明显增大，可提高蓝光的转换效率。
本实施例所述显示面板的技术效果在于，在量子点彩膜层下方的薄膜封装层改为锯齿封装层，所述锯齿封装层包括锯齿区及平面区，所述锯齿区与量子点层的红色量子点区及绿色量子点区相对设置，所述平面区与透明区相对设置，使得入射光在所述锯齿区被折射，经过红色量子点区及绿色量子点区时光程增加，提高蓝光的转换效率，同时，所述锯齿封装层仍旧可以阻隔水氧，保护量子点彩膜层。
如图4所示，本发明还提供一种上述显示面板的制备方法，包括步骤S1~S4。
S1 量子点彩膜层设置步骤，在一基板上制备出一量子点彩膜层，所述量子点彩膜层设置步骤包括步骤S11~S12（参见图5）。
S11彩膜层设置步骤，在一基板上设置一彩膜层，所述彩膜层内设有红色滤光片、绿色滤光片及蓝色滤光片。S12量子点层设置步骤，在所述彩膜层上设置一量子点层，所述量子点层内设有红色量子点区、绿色量子点区及透明区，使得所述红色量子点区与所述红色滤光片相对设置，所述绿色量子点区与所述绿色滤光片相对设置，所述透明区与所述蓝色滤光片相对设置，用以保证入射的蓝光可经过所述红色量子点区后出射为红光，经过所述绿色量子点区后出射为绿光，经过所述透明区后出射为蓝光。
S2锯齿封装层制备步骤，在所述量子点层的上表面制备出一锯齿封装层，用以折射入射光线及阻隔外界水氧。所述锯齿封装层制备步骤包括以下步骤S21~S24（参见图6）。
S21 透明膜层制备步骤，在所述量子点彩膜层一侧的表面涂布透明光阻材料或者透明聚酰亚胺材料，形成一透明膜层。S22 模板设置步骤，在所述透明膜层上表面压上模板，所述模板的下表面设有锯齿图案及平面图案，其中，所述锯齿图案与所述红色量子点区及所述绿色量子点区相对设置，所述平面图案与所述透明区相对设置。S23 光固化步骤，对所述透明膜层进行紫外光固化处理。S24 模板移除步骤，移除所述模板，形成一锯齿封装层。
所述锯齿封装层包括锯齿区及平面区，使得入射光入射到所述锯齿层时被折射，折射后的光线在所述红色量子点区及所述绿色量子点区内的光程增加，提高蓝光的转换效率。入射光入射到所述平面区时，不被影响直接出射出蓝光。同时，所述锯齿封装层仍旧可以阻隔水氧，保护量子点彩膜层。
S3蓝光OLED层设置步骤，设置一蓝光OLED层，使得所述蓝光OLED层与所述量子点彩膜层相对设置，所述蓝光OLED层内设有蓝光光源，所述蓝光光源与所述红色量子点区、所述绿色量子点区及所述透明区相对设置，保证所述蓝光光源出射的光线能入射到所述红色量子点区、所述绿色量子点区及所述透明区内，提高光线出光率。
S4薄膜封装层制备步骤，在所述蓝光OLED层朝向所述量子点彩膜层一侧的表面制备出一薄膜封装层，所述薄膜封装层用以阻隔外界水氧，可保护所述蓝光OLED层。
本实施例所述显示面板的制备方法的技术效果在于，将量子点彩膜层下方的透明膜层压印出锯齿封装层，所述锯齿封装层包括锯齿区及平面区，所述锯齿区与量子点层的红色量子点区及绿色量子点区相对设置，所述平面区与透明区相对设置，使得入射光在所述锯齿区被折射，经过红色量子点区及绿色量子点区时光程增加，提高蓝光的转换效率，同时，所述锯齿封装层仍旧可以阻隔水氧，保护量子点彩膜层。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种显示面板，其包括：
    蓝光OLED层；
    薄膜封装层，设于所述蓝光OLED层一侧的表面；
    量子点彩膜层，设于所述薄膜封装层远离所述蓝光OLED层一侧的表面；以及
    锯齿封装层，设于所述量子点彩膜层靠近所述薄膜封装层一侧的表面；
    其中，所述锯齿封装层包括
    平面封装层；以及
    锯齿，突出于所述平面封装层朝向所述蓝光OLED层一侧的表面。
  2. 如权利要求1所述的显示面板，其中，
    所述量子点彩膜层包括：
    量子点层，设于所述薄膜封装层远离所述蓝光OLED层一侧的表面；以及
    彩膜层，设于所述量子点层远离所述薄膜封装层一侧的表面。
  3. 如权利要求2所述的显示面板，其中，
    所述量子点层包括红色量子点区、绿色量子点区以及透明区。
  4. 如权利要求3所述的显示面板，其中，
    所述锯齿封装层包括
    锯齿区，与所述红色量子点区及绿色量子点区相对设置；以及
    平面区，与所述透明区相对设置。
  5. 如权利要求3所述的显示面板，其中，
    所述彩膜层包括
    红色滤光片，与所述红色量子点区相对设置；
    绿色滤光片，与所述绿色量子点区相对设置；以及
    蓝色滤光片，与所述透明区相对设置。
  6. 如权利要求1所述的显示面板，其中，
    所述锯齿封装层的材质为透明光阻材料或透明聚酰亚胺。
  7. 一种显示面板的制备方法，其包括以下步骤：
    量子点彩膜层设置步骤，设置一量子点彩膜层；
    锯齿封装层制备步骤，在所述量子点彩膜层的表面制备出一锯齿封装层；
    蓝光OLED层设置步骤，设置一蓝光OLED层，使得所述蓝光OLED层与所述量子点彩膜层相对设置；以及
    薄膜封装层制备步骤，在所述蓝光OLED层朝向所述量子点彩膜层一侧的表面制备出一薄膜封装层；
    其中，在所述锯齿封装层制备步骤中，所述锯齿封装层包括平面封装层及锯齿，所述锯齿突出于所述平面封装层，且朝向所述蓝光OLED层一侧的表面。
  8. 如权利要求7所述的显示面板的制备方法，其中，
    所述锯齿层制备步骤包括以下步骤：
    透明膜层制备步骤，在所述量子点彩膜层一侧的表面制备出一透明膜层；
    模板设置步骤，在所述透明膜层上表面压上模板；
    光固化步骤，对所述透明膜层进行光固化处理；以及
    模板移除步骤，移除所述模板。
  9. 如权利要求7所述的显示面板的制备方法，其中，
    所述量子点彩膜层设置步骤包括以下步骤：
    彩膜层设置步骤，在一基板上设置一彩膜层，所述彩膜层内设有红色滤光片、绿色滤光片及蓝色滤光片；
    量子点层设置步骤，在所述彩膜层上设置一量子点层，所述量子点层内设有红色量子点区、绿色量子点区及透明区；
    其中所述红色量子点区与所述红色滤光片相对设置，所述绿色量子点区与所述绿色滤光片相对设置，所述透明区与所述蓝色滤光片相对设置。
  10. 如权利要求9所述的显示面板的制备方法，其中，
    在所述模板设置步骤中，
    所述模板的下表面设有锯齿图案及平面图案；
    其中，所述锯齿图案与所述红色量子点区及所述绿色量子点区相对设置，所述平面图案与所述透明区相对设置。
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