WO2022036768A1 - 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
WO2022036768A1
WO2022036768A1 PCT/CN2020/113776 CN2020113776W WO2022036768A1 WO 2022036768 A1 WO2022036768 A1 WO 2022036768A1 CN 2020113776 W CN2020113776 W CN 2020113776W WO 2022036768 A1 WO2022036768 A1 WO 2022036768A1
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Prior art keywords
layer
light
color light
display area
display panel
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PCT/CN2020/113776
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English (en)
French (fr)
Inventor
汪衎
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武汉华星光电半导体显示技术有限公司
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Priority to US17/263,462 priority Critical patent/US11968875B2/en
Publication of WO2022036768A1 publication Critical patent/WO2022036768A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • 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
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black layers
    • 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
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • 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
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • 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

Definitions

  • the present invention relates to the field of display technology, and in particular, to a display panel and a display device.
  • the organic light-emitting diode (Organic Light-Emitting Diode, OLED) display is a self-luminous display device, because it can take advantage of the characteristics of organic light-emitting materials that can self-luminesce under the condition of an applied voltage, without the need for an additional backlight, Therefore, it has the characteristics of light weight and thinness.
  • organic materials are flexible and easy to bend, they are suitable for the development of flexible and foldable display screens. Therefore, OLED displays account for an increasing proportion of the display field.
  • the display panel and the display device provided by the present invention solve the problem that the brightness and chromaticity of the light of different colors emitted by the organic light-emitting layer in the existing display panel and the display device are different at different viewing angles, so that the display panel bends at a large viewing angle.
  • the display screen of the folded part is prone to the technical problem of large color shift.
  • An embodiment of the present invention provides a display panel, including a flat display area and a curved display area located on at least one side of the flat display area, and the display panel includes:
  • the pixel definition layer defines a plurality of pixel definition openings
  • an organic light-emitting layer disposed in the pixel defining opening, and the organic light-emitting layer is used for emitting light of multiple colors;
  • a cathode layer disposed on the pixel definition layer and the organic light-emitting layer
  • an absorption layer located on the side of the pixel definition layer away from the array substrate, the absorption layer adopts red light absorber paint or green light absorber paint or blue light absorber paint, and the absorption layer is located on the curved display At least a part of the pixel definition layer in the area is correspondingly disposed for selectively absorbing at least one color light emitted by the organic light-emitting layer located in the curved display area.
  • the absorption layer is located between the pixel definition layer and the cathode layer.
  • the absorption layer is located between the cathode layer and the encapsulation layer.
  • the absorption layer is located on the encapsulation layer.
  • the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer which are sequentially stacked on the cathode layer, and the absorption layer is located on the encapsulation layer internal.
  • the thickness of the first inorganic encapsulation layer and the second inorganic encapsulation layer is 1 nm to 10 ⁇ m, and the thickness of the organic encapsulation layer is 10 nm to 20 ⁇ m.
  • the light of multiple colors emitted by the organic light-emitting layer at least includes light of the first color, light of the second color and light of the third color, and under a vertical viewing angle, the light of the first color is at The luminance ratio of the flat display area and the curved display area is greater than the luminance ratio of the second color light in the flat display area and the curved display area, and the second color light and the third color light are The luminance ratio of the color light in the flat display area is equal to that in the curved display area, and the absorption layer absorbs at least part of the first color light.
  • the first color light, the second color light and the third color light are respectively any one of red light, green light and blue light, and the first color light The light, the second color light and the third color light are of different colors.
  • the curved display areas are located on opposite sides of the flat display area, and the curved display areas are bent in a display direction away from the display panel.
  • the thickness of the absorption layer is 0.01 ⁇ m ⁇ 10 ⁇ m.
  • An embodiment of the present invention provides a display panel, including a flat display area and a curved display area located on at least one side of the flat display area, and the display panel includes:
  • the pixel definition layer defines a plurality of pixel definition openings
  • an organic light-emitting layer disposed in the pixel defining opening, and the organic light-emitting layer is used for emitting light of multiple colors;
  • a cathode layer disposed on the pixel definition layer and the organic light-emitting layer
  • an absorption layer located on the side of the pixel definition layer away from the array substrate, the absorption layer is arranged corresponding to at least part of the pixel definition layer located in the curved display area, and is used for selectively absorbing the pixel definition layer located on the curved display area at least one color light emitted by the organic light-emitting layer in the region.
  • the absorption layer is located between the pixel definition layer and the cathode layer.
  • the absorption layer is located between the cathode layer and the encapsulation layer.
  • the absorption layer is located on the encapsulation layer.
  • the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer which are sequentially stacked on the cathode layer, and the absorption layer is located on the encapsulation layer internal.
  • the absorption layer is located between the first inorganic encapsulation layer and the organic encapsulation layer.
  • the absorption layer is located between the organic encapsulation layer and the second inorganic encapsulation layer.
  • the light of multiple colors emitted by the organic light-emitting layer at least includes light of the first color, light of the second color and light of the third color, and under a vertical viewing angle, the light of the first color is at The luminance ratio of the flat display area and the curved display area is greater than the luminance ratio of the second color light in the flat display area and the curved display area, and the second color light and the third color light are The luminance ratio of the color light in the flat display area is equal to that in the curved display area, and the absorption layer absorbs at least part of the first color light.
  • the first color light, the second color light and the third color light are respectively any one of red light, green light and blue light, and the first color light The light, the second color light and the third color light are of different colors.
  • An embodiment of the present invention provides a display device including the above-mentioned display panel.
  • an absorption layer is disposed corresponding to at least part of the pixel definition layer located in the curved display area for selectively absorbing the emission of the organic light-emitting layer located in the curved display area. At least one color light is obtained, so as to artificially adjust the brightness ratio of multiple colors emitted by the organic light-emitting layer under a large viewing angle, and reduce the risk of color shift of the white picture under a large viewing angle;
  • the light emitted from the layer does not absorb and interfere with the effect, so that it will not affect the color shift of the picture under the vertical viewing angle, and the display effect of the display panel is improved.
  • FIG. 1 is a schematic plan view of a display panel according to an embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional structure diagram of a curved display area of a first display panel according to an embodiment of the present invention
  • FIG. 4 is a schematic cross-sectional structure diagram of a curved display area of a second display panel according to an embodiment of the present invention.
  • FIG. 5 is a schematic cross-sectional structure diagram of a curved display area of a third display panel according to an embodiment of the present invention.
  • FIG. 6 is a schematic cross-sectional structure diagram of a curved display area of a fourth display panel according to an embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional structure diagram of a curved display area of a fifth display panel according to an embodiment of the present invention.
  • the present invention is aimed at the display panel and display device of the prior art. Since the light of different colors emitted by the organic light-emitting layer has different changing laws of luminance and chromaticity under different viewing angles, the display image of the bent portion of the display panel is easy to be generated under large viewing angles. If the color shift is larger, this embodiment can solve this defect.
  • a display panel provided by an embodiment of the present invention includes a flat display area 100 and a curved display area 200 located on at least one side of the flat display area 100 .
  • the flat display area 200 The positions of the area 100 and the curved display area 200 may not be limited, and the curved display area 200 may be arranged on one or more sides of the flat display area 100, such as "curved screen” and "waterfall screen”;
  • the curved display area 200 may also surround the flat display area 100 , such as a “surround screen”; in the display panels shown in FIGS. 1 and 2 , the curved display area 200 is located in the flat display area 100 On the opposite sides of the curved display area 200, the curved display area 200 is bent away from the display direction of the display panel.
  • the display panel includes an array substrate 10 , a pixel definition layer 20 , an organic light-emitting layer 30 , a cathode layer 50 , an encapsulation layer 60 and an absorption layer 40 .
  • the pixel definition layer 20 is disposed on the array substrate 10, and the pixel definition layer 20 defines a plurality of pixel definition openings 201; the organic light emitting layer 30 is disposed in the pixel definition opening 201, and the organic light emitting layer 30 Used to emit light of various colors; the cathode layer 50 is disposed on the pixel definition layer 20 and the organic light-emitting layer 30, and the encapsulation layer 60 is disposed on the cathode layer 50 to prevent external water and oxygen Enter the organic light-emitting layer 30 ; it should be noted that an anode layer (not shown in the figure) is also provided on the array substrate 10 , and the anode layer and the organic light-emitting layer 30 are correspondingly arranged.
  • the multiple color lights emitted by the organic light-emitting layer 30 at least include a first color light, a second color light and a third color light, wherein the first color light, the second color light and the The third color light is any one of red light, green light, and blue light, respectively, and the first color light, the second color light, and the third color light are different colors.
  • the display screen of the flat display area 100 is due to the light emitted by the organic light-emitting layer 30 located in the flat display area 100 .
  • the red light, green light and blue light have a preset brightness ratio, so that the flat display area 100 displays a white screen, but the actual outgoing optical path of the outgoing light from the curved display area 200 is compared with the flat display area.
  • the actual outgoing optical path of the outgoing light from the area 100 is relatively long, which results in red light, green light and blue light emitted by the organic light emitting layer 30 in the curved display area 200 and the flat display area 100 respectively.
  • the brightness ratios of the light beams are not equal, so that the curved display area 200 will appear color shift to a certain extent under a large viewing angle.
  • the curved display area 200 exhibits a red color cast; when the brightness of the green light is too large, the curved display area 200 exhibits a green color cast; when the blue light is too bright, the curved display area 200 exhibits a blue color cast; it should be noted that
  • the specific color shift of the curved display area 200 depends on the changing laws of the brightness and chromaticity of red light, green light and blue light at different viewing angles. The more common green color shift is because the red light varies with the viewing angle. The luminance falloff of is generally greater than that of green light with viewing angle.
  • the brightness ratio of the first color light in the flat display area 100 to that in the curved display area 200 is greater than that of the second color light in the flat display area 100 Compared with the brightness ratio in the curved display area 200, the brightness ratio of the second color light and the third color light in the flat display area 100 and the curved display area 200 is equal, then all the The absorption layer 40 absorbs at least part of the first color light, so that the first color light, the first color light emitted by the organic light emitting layer 30 located in the curved display area 200 and the flat display area 100
  • the two-color light and the third-color light have the same brightness ratio, that is, the red light, green light and blue light emitted by the organic light-emitting layer 30 in the curved display area 200 and the flat display area 100
  • the luminance ratios of the OLEDs are equal, so as to artificially adjust the luminance ratios of the various colors emitted by the organic light-emitting layer 30 under a large viewing angle, and reduce
  • the absorption layer 40 is disposed on the side of the pixel definition layer 20 away from the array substrate 10 , and the absorption layer 40 and at least part of the pixel definition layer 20 located in the curved display area 200 Correspondingly, it is used for selectively absorbing at least one color light emitted by the organic light-emitting layer 30 located in the curved display area 200; specifically, the absorbing layer 40 may use a red light absorbing agent paint or a green light absorbing agent The paint or blue light absorber paint has selective high absorption performance for red light, green light and blue light respectively.
  • the absorption layer 40 adopts a red light absorber paint
  • the absorption layer 40 may be an absorber coating such as cadmium telluride; when the curved display area 200 exhibits a green color shift, the absorption layer 40 may be a green light absorber coating, and the absorption layer 40 may include dipyrrole boron Absorber paint such as alkane; when the curved display area 200 exhibits a blue color shift, the absorption layer 40 uses a blue absorber paint, and the absorption layer 40 may include lotsorb (Lolansol) absorber B-800 ( 2mm, PC) absorbent coatings, etc.
  • the absorption layer 40 may only be provided corresponding to a part of the pixel definition layers 20 in the curved display area 200 , or may be provided corresponding to all the pixel definition layers 20 in the curved display area 200 .
  • the requirement is satisfied as long as the absorption layer 40 does not overlap with the organic light-emitting layer 30 in the curved display area 200 in the vertical direction.
  • the absorption layer 40 is positive to the organic light-emitting layer 30 .
  • the outgoing light does not absorb interference, so it will not affect the color shift of the picture under the vertical viewing angle.
  • the absorption layer 40 is located between the pixel definition layer 20 and the cathode layer 50 , and is connected to at least a part of the pixel definition layer located in the curved display area 200 .
  • the absorption layer 40 is used to absorb part of the oblique light
  • the cathode layer 50 covers the pixel definition layer 20
  • the encapsulation layer 60 covers the
  • the specific structure of the encapsulation layer 60 is not limited.
  • the difference from FIG. 3 is that the absorption layer 40 is located between the cathode layer 50 and the encapsulation layer 60 , and is different from the surface of the curved display area 200 . At least part of the pixel definition layer 20 is correspondingly disposed, the absorption layer 40 is located on the cathode layer 50, and the encapsulation layer 60 covers the cathode layer 50 and the absorption layer 40. Similarly, in this embodiment, , the specific structure of the encapsulation layer 60 is not limited.
  • the difference from FIGS. 3 and 4 is that the absorption layer 40 is located on the encapsulation layer 60 and is different from at least part of the surface of the curved display area 200 .
  • the pixel definition layer 20 is provided correspondingly, the cathode layer 50 covers the pixel definition layer 20 and the organic light-emitting layer 30 , and the encapsulation layer 60 covers the cathode layer 50 .
  • no The specific structure of the encapsulation layer 60 is defined.
  • both the cathode layer 50 and the encapsulation layer 60 are transparent, the light emitted by the organic light emitting layer 30 located in the curved display area 200 can be transmitted through the encapsulation layer 60 .
  • the encapsulation layer 60 includes a multi-layer encapsulation structure, and the encapsulation layer 60 includes a first inorganic encapsulation layer 601 and an organic encapsulation layer 602 that are sequentially stacked on the cathode layer 50 .
  • the difference from FIG. 3 , FIG. 4 and FIG. 5 is that the absorption layer 40 is located inside the encapsulation layer 60 .
  • the absorption layer 40 is located between the first inorganic encapsulation layer 601 and the organic encapsulation layer 602 , and the cathode layer 50 covers the pixel definition layer 20 and the organic light-emitting layer 30, the first inorganic encapsulation layer 601 is disposed on the cathode layer 50, the absorption layer 40 is disposed on the first inorganic encapsulation layer 601, and is located on the curved display At least part of the pixel definition layer 20 in the region 200 is correspondingly disposed, the organic encapsulation layer 602 covers the absorption layer 40 and the first inorganic encapsulation layer 601, and the second inorganic encapsulation layer 603 covers the organic encapsulation layer 602.
  • the absorption layer 40 is located between the organic encapsulation layer 602 and the second inorganic encapsulation layer 603 , and the cathode layer 50 covers the pixel definition layer 20 and the organic light-emitting layer 30, the first inorganic encapsulation layer 601 covers the cathode layer, the organic encapsulation layer 602 covers the first inorganic encapsulation layer 601, and the absorption layer 40 is disposed on the organic package
  • the second inorganic encapsulation layer 603 covers the absorption layer 40 and the organic encapsulation layer 602 .
  • the materials selected for the first inorganic encapsulation layer 601 and the second inorganic encapsulation layer 603 include SiNx, SiONx, and AlOx, etc.
  • the materials selected for the organic encapsulation layer 602 include Arcylic (acrylic acid) based organic polymers. Material.
  • the thickness of the first inorganic encapsulation layer 601 and the second inorganic encapsulation layer 603 is 1 nm ⁇ 10 ⁇ m, and the thickness of the organic packaging layer 602 is 10 nm ⁇ 20 ⁇ m.
  • the encapsulation layer 60 provided is a three-layer encapsulation structure, but it is not limited to this, and the encapsulation layer 60 may also be five-layer, seven-layer Layer or more layers of encapsulation structure, correspondingly, the specific position of the absorption layer 40 has more possibilities with the change of the encapsulation structure of the encapsulation layer 60, which are all within the protection scope of the technical solution of the present application, The specific situation will not be described in detail here.
  • the thickness of the absorption layer 40 is 0.01 ⁇ m ⁇ 10 ⁇ m.
  • An embodiment of the present invention further provides a display device, including the above-mentioned display panel, and the display device may be a display device such as a mobile terminal, a tablet computer, a sports bracelet, a remote control, and an all-in-one computer.
  • the display device has the advantage of low color shift at a large viewing angle, which will not be repeated here.
  • an absorption layer is disposed corresponding to at least part of the pixel definition layer located in the curved display area, so as to selectively absorb the light emitted by the organic light-emitting layer located in the curved display area.
  • At least one color light so as to artificially adjust the brightness ratio of multiple colors emitted by the organic light-emitting layer under a large viewing angle, and reduce the risk of color shift of the white screen under a large viewing angle;
  • the forward outgoing light has no absorption interference effect, so it will not affect the color shift of the picture under the vertical viewing angle, and the display effect of the display panel is improved.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本发明提供一种阵列基板及显示装置，显示面板包括阵列基板、像素定义层、有机发光层、阴极层、封装层以及吸收层，吸收层位于像素定义层远离阵列基板的一侧，吸收层与位于曲面显示区的至少部分像素定义层对应设置，用于选择性吸收至少一种颜色光线，减弱大视角下白画面发生色偏的风险，且不会对垂直视角下画面产生色偏影响。

Description

显示面板及显示装置 技术领域
本发明涉及显示技术领域，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）显示屏是一种自发光型显示装置，由于其可以利用有机发光材料在外加电压的情况下可以自发光的特性，不需要借助额外的背光源，故其具有质轻、薄等特点，此外由于有机材料具有柔性易弯折等特点，适合开发出柔性可折叠显示屏，因此OLED显示屏在显示领域所占比重越来越大。
目前，利用OLED显示屏柔性易弯折特点，诸多厂家已推出“曲面屏”、“环绕屏”、“瀑布屏”等诸多产品，以进一步提升屏占比，提升显示效果。然而该种“环绕屏”、“瀑布屏”由于在显示屏左右两端进行大角度弯曲，使得在显示屏整面垂直角度观察画面时，由于大视角原因，左右两端曲面显示区的显示画面不可避免地出现色偏现象，例如市面已报道的“边缘发绿”等不良现象。
综上所述，需要提供一种新的显示面板及显示装置，来解决上述技术问题。
 技术问题
本发明提供的显示面板及显示装置，解决了现有的显示面板及显示装置由于有机发光层所发出的不同颜色光线在不同视角下亮度和色度变化规律不同，从而在大视角下显示面板弯折部分的显示画面易产生较大色偏的技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明实施例提供一种显示面板，包括平面显示区和位于所述平面显示区至少一侧的曲面显示区，所述显示面板包括：
阵列基板；
像素定义层，设置于所述阵列基板上，所述像素定义层界定出多个像素定义开口；
有机发光层，设置于所述像素定义开口内，所述有机发光层用于发出多种颜色光线；
阴极层，设置于所述像素定义层和所述有机发光层上；
封装层，设置于所述阴极层上；以及
吸收层，位于所述像素定义层远离所述阵列基板的一侧，所述吸收层采用红光吸收剂涂料或绿光吸收剂涂料或蓝光吸收剂涂料，所述吸收层与位于所述曲面显示区的至少部分所述像素定义层对应设置，用于选择性吸收位于所述曲面显示区的所述有机发光层发出的至少一种颜色光线。
根据本发明实施例提供的显示面板，所述吸收层位于所述像素定义层和所述阴极层之间。
根据本发明实施例提供的显示面板，所述吸收层位于所述阴极层和所述封装层之间。
根据本发明实施例提供的显示面板，所述吸收层位于所述封装层上。
根据本发明实施例提供的显示面板，所述封装层包括依次层叠设置于所述阴极层上的第一无机封装层、有机封装层以及第二无机封装层，所述吸收层位于所述封装层内部。
根据本发明实施例提供的显示面板，所述第一无机封装层和所述第二无机封装层的厚度为1nm ~10μm，所述有机封装层的厚度为10nm~20μm。
根据本发明实施例提供的显示面板，所述有机发光层发出的多种颜色光线至少包括第一颜色光线、第二颜色光线以及第三颜色光线，在垂直视角下，所述第一颜色光线在所述平面显示区与在所述曲面显示区的亮度比大于所述第二颜色光线在所述平面显示区与在所述曲面显示区的亮度比，所述第二颜色光线及所述第三颜色光线在所述平面显示区与在所述曲面显示区的亮度比相等，所述吸收层吸收至少部分所述第一颜色光线。
根据本发明实施例提供的显示面板，所述第一颜色光线、所述第二颜色光线和所述第三颜色光线分别为红光、绿光以及蓝光中的任意一种，所述第一颜色光线、所述第二颜色光线以及所述第三颜色光线为不同颜色。
根据本发明实施例提供的显示面板，所述曲面显示区位于所述平面显示区的相对两侧，所述曲面显示区向背离所述显示面板的显示方向弯折。
根据本发明实施例提供的显示面板，所述吸收层的厚度为0.01μm ~10μm。
本发明实施例提供一种显示面板，包括平面显示区和位于所述平面显示区至少一侧的曲面显示区，所述显示面板包括：
阵列基板；
像素定义层，设置于所述阵列基板上，所述像素定义层界定出多个像素定义开口；
有机发光层，设置于所述像素定义开口内，所述有机发光层用于发出多种颜色光线；
阴极层，设置于所述像素定义层和所述有机发光层上；
封装层，设置于所述阴极层上；以及
吸收层，位于所述像素定义层远离所述阵列基板的一侧，所述吸收层与位于所述曲面显示区的至少部分所述像素定义层对应设置，用于选择性吸收位于所述曲面显示区的所述有机发光层发出的至少一种颜色光线。
根据本发明实施例提供的显示面板，所述吸收层位于所述像素定义层和所述阴极层之间。
根据本发明实施例提供的显示面板，所述吸收层位于所述阴极层和所述封装层之间。
根据本发明实施例提供的显示面板，所述吸收层位于所述封装层上。
根据本发明实施例提供的显示面板，所述封装层包括依次层叠设置于所述阴极层上的第一无机封装层、有机封装层以及第二无机封装层，所述吸收层位于所述封装层内部。
根据本发明实施例提供的显示面板，所述吸收层位于所述第一无机封装层和所述有机封装层之间。
根据本发明实施例提供的显示面板，所述吸收层位于所述有机封装层和所述第二无机封装层之间。
根据本发明实施例提供的显示面板，所述有机发光层发出的多种颜色光线至少包括第一颜色光线、第二颜色光线以及第三颜色光线，在垂直视角下，所述第一颜色光线在所述平面显示区与在所述曲面显示区的亮度比大于所述第二颜色光线在所述平面显示区与在所述曲面显示区的亮度比，所述第二颜色光线及所述第三颜色光线在所述平面显示区与在所述曲面显示区的亮度比相等，所述吸收层吸收至少部分所述第一颜色光线。
根据本发明实施例提供的显示面板，所述第一颜色光线、所述第二颜色光线和所述第三颜色光线分别为红光、绿光以及蓝光中的任意一种，所述第一颜色光线、所述第二颜色光线以及所述第三颜色光线为不同颜色。
本发明实施例提供一种显示装置，包括上述显示面板。
 有益效果
本发明的有益效果为：本发明提供的显示面板及显示装置，通过在与位于曲面显示区的至少部分像素定义层对应设置有吸收层，用于选择性吸收位于曲面显示区的有机发光层发出的至少一种颜色光线，从而实现人为调整大视角下有机发光层发出的多种颜色的亮度配比，减弱大视角下白画面发生色偏的风险；同时在垂直视角下该吸收层对有机发光层正向出射光线并无吸收干扰效果，从而不会对垂直视角下画面产生色偏影响，提升了显示面板的显示效果。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种显示面板的平面结构示意图；
图2为本发明实施例提供的一种显示面板的截面结构示意图；
图3为本发明实施例提供的第一种显示面板曲面显示区的截面结构示意图；
图4本发明实施例提供的第二种显示面板曲面显示区的截面结构示意图；
图5本发明实施例提供的第三种显示面板曲面显示区的截面结构示意图；
图6本发明实施例提供的第四种显示面板曲面显示区的截面结构示意图；
图7本发明实施例提供的第五种显示面板曲面显示区的截面结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有技术的显示面板及显示装置，由于有机发光层所发出的不同颜色光线在不同视角下亮度和色度变化规律不同，从而在大视角下显示面板弯折部分的显示画面易产生较大色偏，本实施例能够解决该缺陷。
请参阅图1、图2，本发明实施例提供的显示面板，包括平面显示区100和位于所述平面显示区100至少一侧的曲面显示区200，在本发明实施例中，所述平面显示区100和所述曲面显示区200的位置可以不做限制，所述曲面显示区200可以设置于所述平面显示区100的一侧或多侧，例如“曲面屏”、“瀑布屏”；所述曲面显示区200也可以环绕于所述平面显示区100的周围，例如“环绕屏”；在图1、图2所示的显示面板中，所述曲面显示区200位于所述平面显示区100的相对两侧，所述曲面显示区200向背离所述显示面板的显示方向弯折。
请参阅图3、图4、图5、图6以及图7，所述显示面板包括阵列基板10、像素定义层20、有机发光层30、阴极层50、封装层60以及吸收层40，所述像素定义层20设置于所述阵列基板10上，所述像素定义层20界定出多个像素定义开口201；所述有机发光层30设置于所述像素定义开口201内，所述有机发光层30用于发出多种颜色光线；所述阴极层50设置于所述像素定义层20和所述有机发光层30上，所述封装层60设置于所述阴极层50上，用于防止外界水氧进入所述有机发光层30内；需要说明的是，所述阵列基板10上还设置有阳极层（图中未示出），所述阳极层和所述有机发光层30对应设置。
具体地，所述有机发光层30发出的多种颜色光线至少包括第一颜色光线、第二颜色光线以及第三颜色光线，其中，所述第一颜色光线、所述第二颜色光线和所述第三颜色光线分别为红光、绿光以及蓝光中的任意一种，所述第一颜色光线、所述第二颜色光线以及所述第三颜色光线为不同颜色。
可以理解的是，当使用者以垂直视角观看显示面板的显示画面时，即大视角下，所述平面显示区100的显示画面由于位于所述平面显示区100的所述有机发光层30发出的红色光线、绿色光线以及蓝色光线具有预设亮度配比，使得所述平面显示区100显示为白画面，然而所述曲面显示区200的出射光线的实际出射光程相比于所述平面显示区100的出射光线的实际出射光程较长，故会导致分别位于所述曲面显示区200与所述平面显示区100中的所述有机发光层30发出的红色光线、绿色光线以及蓝色光线的亮度配比并不相等，从而在大视角下会在一定程度上导致所述曲面显示区200出现色偏现象，例如，相比之下，当红色光线亮度比偏大时，所述曲面显示区200呈现红色色偏；当绿色光线亮度偏大时，所述曲面显示区200呈现绿色色偏；当蓝色光线亮度偏大时，所述曲面显示区200呈现蓝色色偏；需要说明的是，所述曲面显示区200具体呈现何种颜色色偏取决于红色光线、绿色光线和蓝色光线在不同视角下亮度和色度变化规律，比较常见的为绿色色偏，原因在于红色光线随视角的亮度衰减通常大于绿色光线随视角的亮度衰减。
从实现原理上说，在垂直视角下，当所述第一颜色光线在所述平面显示区100与在所述曲面显示区200的亮度比大于所述第二颜色光线在所述平面显示区100与在所述曲面显示区200的亮度比，所述第二颜色光线及所述第三颜色光线在所述平面显示区100与在所述曲面显示区200的亮度比相等，则此时的所述吸收层40吸收至少部分所述第一颜色光线，以使位于所述曲面显示区200与所述平面显示区100中的所述有机发光层30发出的所述第一颜色光线、所述第二颜色光线以及所述第三颜色光线的亮度配比相等，即位于所述曲面显示区200与所述平面显示区100中的所述有机发光层30发出的红色光线、绿色光线以及蓝色光线的亮度配比相等，从而实现人为调整大视角下所述有机发光层30发出的多种颜色的亮度配比，减弱大视角下白画面发生色偏的风险。
从结构上来说，所述吸收层40设置于所述像素定义层20远离所述阵列基板10的一侧，所述吸收层40与位于所述曲面显示区200的至少部分所述像素定义层20对应设置，用于选择性吸收位于所述曲面显示区200的所述有机发光层30发出的至少一种颜色光线；具体地，所述吸收层40可以采用红光吸收剂涂料或绿光吸收剂涂料或蓝光吸收剂涂料，分别对红光、绿光以及蓝光具有选择性高吸收性能，例如，当所述曲面显示区200呈现红色色偏时，所述吸收层40采用红光吸收剂涂料，所述吸收层40可以为碲化镉等吸收剂涂料；当所述曲面显示区200呈现绿色色偏时，所述吸收层40采用绿光吸收剂涂料，所述吸收层40可以包括二吡咯硼烷等吸收剂涂料；当所述曲面显示区200呈现蓝色色偏时，所述吸收层40采用蓝色吸收剂涂料，所述吸收层40可以包括lotsorb（洛兰素）吸收剂B-800(2mm, PC)吸收剂涂料等。
需要说明的是，所述吸收层40可以仅与所述曲面显示区200的部分所述像素定义层20对应设置，也可以与所述曲面显示区200的全部所述像素定义层20对应设置，只要限定所述吸收层40不与位于所述曲面显示区200的所述有机发光层30在垂直方向上重叠即可满足要求，此时在垂直视角下，该吸收层40对有机发光层30正向出射光线并无吸收干扰效果，从而不会对垂直视角下画面产生色偏影响。
请参阅图3，在一种实施方式中，所述吸收层40位于所述像素定义层20和所述阴极层50之间，并与位于所述曲面显示区200的至少部分所述像素定义层20对应设置，所述吸收层40用于吸收部分斜射光线，所述阴极层50覆盖所述像素定义层20、所述有机发光层30以及所述吸收层40，所述封装层60覆盖所述阴极层50，在本实施方式中，并未限定所述封装层60的具体结构。
请参阅图4，在一种实施方式中，与图3不同之处在于，所述吸收层40位于所述阴极层50和所述封装层60之间，并与位于所述曲面显示区200的至少部分所述像素定义层20对应设置，所述吸收层40位于所述阴极层50上，所述封装层60覆盖所述阴极层50和所述吸收层40，同样地，在本实施方式中，并未限定所述封装层60的具体结构。
请参阅图5，在一种实施方式中，与图3、图4不同之处在于，所述吸收层40位于所述封装层60上，并与位于所述曲面显示区200的至少部分所述像素定义层20对应设置，所述阴极层50覆盖所述像素定义层20和所述有机发光层30，所述封装层60覆盖所述阴极层50，同样地，在本实施方式中，并未限定所述封装层60的具体结构。
由于所述阴极层50和所述封装层60均为透明，故位于所述曲面显示区200的所述有机发光层30发出的光线能够从所述封装层60透射出去。
进一步地，请参阅图6、图7，所述封装层60包括多层封装结构，所述封装层60包括依次层叠设置于所述阴极层50上的第一无机封装层601、有机封装层602以及第二无机封装层603，与图3、图4及图5的不同之处在于，所述吸收层40位于所述封装层60内部。
具体地，请参阅图6，在一种实施方式中，所述吸收层40位于所述第一无机封装层601和所述有机封装层602之间，所述阴极层50覆盖所述像素定义层20和所述有机发光层30，所述第一无机封装层601设置于所述阴极层50上，所述吸收层40设置于所述第一无机封装层601上，并与位于所述曲面显示区200的至少部分所述像素定义层20对应设置，所述有机封装层602覆盖所述吸收层40和所述第一无机封装层601，所述第二无机封装层603覆盖所述有机封装层602。
具体地，请参阅图7，在一种实施方式中，所述吸收层40位于所述有机封装层602和所述第二无机封装层603之间，所述阴极层50覆盖所述像素定义层20和所述有机发光层30，所述第一无机封装层601覆盖所述阴极层，所述有机封装层602覆盖所述第一无机封装层601，所述吸收层40设置于所述有机封装层602上，并与并与位于所述曲面显示区200的至少部分所述像素定义层20对应设置，所述第二无机封装层603覆盖所述吸收层40和所述有机封装层602。
可选地，所述第一无机封装层601和所述第二无机封装层603选用的材料包括SiNx、SiONx及AlOx等，所述有机封装层602选用的材料包括Arcylic（丙烯酸）系有机聚合物材料。
具体地，所述第一无机封装层601和所述第二无机封装层603的厚度为1nm ~10μm，所述有机封装层602的厚度为10nm~20μm。
需要说明的是，在如图6、图7所示的实施方式中，提供的所述封装层60为三层封装结构，但并不限于此，所述封装层60也可以为五层、七层或者更多层封装结构，相应地，所述吸收层40的具体位置随着所述封装层60的封装结构的变化而具有更多的可能性，均在本申请技术方案的保护范围内，具体情况在此不再详述。
具体地，所述吸收层40的厚度为0.01μm ~10μm。
本发明实施例还提供一种显示装置，包括上述显示面板，所述显示装置可以为移动终端、平板电脑、运动手环、遥控器以及一体机电脑等显示装置。所述显示装置具有大视角下色偏程度低的优点，这里不再赘述。
有益效果为：本发明实施例提供的显示面板及显示装置，通过在与位于曲面显示区的至少部分像素定义层对应设置有吸收层，用于选择性吸收位于曲面显示区的有机发光层发出的至少一种颜色光线，从而实现人为调整大视角下有机发光层发出的多种颜色的亮度配比，减弱大视角下白画面发生色偏的风险；同时在垂直视角下该吸收层对有机发光层正向出射光线并无吸收干扰效果，从而不会对垂直视角下画面产生色偏影响，提升了显示面板的显示效果。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种显示面板，包括平面显示区和位于所述平面显示区至少一侧的曲面显示区，所述显示面板包括：
    阵列基板；
    像素定义层，设置于所述阵列基板上，所述像素定义层界定出多个像素定义开口；
    有机发光层，设置于所述像素定义开口内，所述有机发光层用于发出多种颜色光线；
    阴极层，设置于所述像素定义层和所述有机发光层上；
    封装层，设置于所述阴极层上；以及
    吸收层，位于所述像素定义层远离所述阵列基板的一侧，所述吸收层采用红光吸收剂涂料或绿光吸收剂涂料或蓝光吸收剂涂料，所述吸收层与位于所述曲面显示区的至少部分所述像素定义层对应设置，用于选择性吸收位于所述曲面显示区的所述有机发光层发出的至少一种颜色光线。
  2. 根据权利要求1所述的显示面板，其中所述吸收层位于所述像素定义层和所述阴极层之间。
  3. 根据权利要求1所述的显示面板，其中所述吸收层位于所述阴极层和所述封装层之间。
  4. 根据权利要求1所述的显示面板，其中所述吸收层位于所述封装层上。
  5. 根据权利要求1所述的显示面板，其中所述封装层包括依次层叠设置于所述阴极层上的第一无机封装层、有机封装层以及第二无机封装层，所述吸收层位于所述封装层内部。
  6. 根据权利要求5所述的显示面板，其中所述第一无机封装层和所述第二无机封装层的厚度为1nm ~10μm，所述有机封装层的厚度为10nm~20μm。
  7. 根据权利要求1所述的显示面板，其中所述有机发光层发出的多种颜色光线至少包括第一颜色光线、第二颜色光线以及第三颜色光线，在垂直视角下，所述第一颜色光线在所述平面显示区与在所述曲面显示区的亮度比大于所述第二颜色光线在所述平面显示区与在所述曲面显示区的亮度比，所述第二颜色光线及所述第三颜色光线在所述平面显示区与在所述曲面显示区的亮度比相等，所述吸收层吸收至少部分所述第一颜色光线。
  8. 根据权利要求7所述的显示面板，其中所述第一颜色光线、所述第二颜色光线和所述第三颜色光线分别为红光、绿光以及蓝光中的任意一种，所述第一颜色光线、所述第二颜色光线以及所述第三颜色光线为不同颜色。
  9. 根据权利要求1所述的显示面板，其中所述曲面显示区位于所述平面显示区的相对两侧，所述曲面显示区向背离所述显示面板的显示方向弯折。
  10. 根据权利要求1所述的显示面板，其中所述吸收层的厚度为0.01μm ~10μm。
  11. 一种显示面板，包括平面显示区和位于所述平面显示区至少一侧的曲面显示区，所述显示面板包括：
    阵列基板；
    像素定义层，设置于所述阵列基板上，所述像素定义层界定出多个像素定义开口；
    有机发光层，设置于所述像素定义开口内，所述有机发光层用于发出多种颜色光线；
    阴极层，设置于所述像素定义层和所述有机发光层上；
    封装层，设置于所述阴极层上；以及
    吸收层，位于所述像素定义层远离所述阵列基板的一侧，所述吸收层与位于所述曲面显示区的至少部分所述像素定义层对应设置，用于选择性吸收位于所述曲面显示区的所述有机发光层发出的至少一种颜色光线。
  12. 根据权利要求11所述的显示面板，其中所述吸收层位于所述像素定义层和所述阴极层之间。
  13. 根据权利要求11所述的显示面板，其中所述吸收层位于所述阴极层和所述封装层之间。
  14. 根据权利要求11所述的显示面板，其中所述吸收层位于所述封装层上。
  15. 根据权利要求11所述的显示面板，其中所述封装层包括依次层叠设置于所述阴极层上的第一无机封装层、有机封装层以及第二无机封装层，所述吸收层位于所述封装层内部。
  16. 根据权利要求15所述的显示面板，其中所述吸收层位于所述第一无机封装层和所述有机封装层之间。
  17. 根据权利要求15所述的显示面板，其中所述吸收层位于所述有机封装层和所述第二无机封装层之间。
  18. 根据权利要求11所述的显示面板，其中所述有机发光层发出的多种颜色光线至少包括第一颜色光线、第二颜色光线以及第三颜色光线，在垂直视角下，所述第一颜色光线在所述平面显示区与在所述曲面显示区的亮度比大于所述第二颜色光线在所述平面显示区与在所述曲面显示区的亮度比，所述第二颜色光线及所述第三颜色光线在所述平面显示区与在所述曲面显示区的亮度比相等，所述吸收层吸收至少部分所述第一颜色光线。
  19. 根据权利要求18所述的显示面板，其中所述第一颜色光线、所述第二颜色光线和所述第三颜色光线分别为红光、绿光以及蓝光中的任意一种，所述第一颜色光线、所述第二颜色光线以及所述第三颜色光线为不同颜色。
  20. 一种显示装置，包括权利要求11所述的显示面板。
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