WO2021233220A1 - 一种显示基板和显示装置 - Google Patents

一种显示基板和显示装置 Download PDF

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Publication number
WO2021233220A1
WO2021233220A1 PCT/CN2021/093798 CN2021093798W WO2021233220A1 WO 2021233220 A1 WO2021233220 A1 WO 2021233220A1 CN 2021093798 W CN2021093798 W CN 2021093798W WO 2021233220 A1 WO2021233220 A1 WO 2021233220A1
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area
pixel
sub
transparent area
transparent
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PCT/CN2021/093798
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English (en)
French (fr)
Inventor
宋文峰
吴长晏
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京东方科技集团股份有限公司
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Priority to US17/763,199 priority Critical patent/US20220367580A1/en
Publication of WO2021233220A1 publication Critical patent/WO2021233220A1/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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • 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
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel 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
    • H10K59/80—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
    • 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

Definitions

  • the embodiments of the present disclosure relate to, but are not limited to, the field of display technology, and in particular to a display substrate and a display device.
  • a transparent display device refers to a display device that can form a transparent display state so that the viewer can see the display image of the display device and the scene behind the display device.
  • the present disclosure provides a display substrate, including: a substrate and a plurality of sub-pixel areas arranged in a matrix arranged on the substrate; each sub-pixel area includes: a display area and a transparent area;
  • the transparent area in each sub-pixel area includes at least an arc-shaped boundary.
  • each sub-pixel area has an axisymmetric structure, and the symmetry axis of each sub-pixel area includes: a first symmetry axis and a second symmetry axis;
  • the first direction is the extension direction of the first axis of symmetry
  • the second direction is the extension direction of the second axis of symmetry
  • the first direction is perpendicular to the second direction
  • the plane formed by the two directions is parallel to the plane where the display substrate is located;
  • Each sub-pixel area is evenly divided into a first area, a second area, a third area, and a fourth area;
  • the first area and the second area are arranged along the first direction; the third area and the fourth area are arranged along the second direction; the first area and the third area are arranged along the second direction Arranged in a direction, the second area and the fourth area are arranged in a second direction.
  • the multiple sub-pixel areas include: a first type of sub-pixel area or a second type of sub-pixel area;
  • the shape of the boundary of the transparent area of the first type sub-pixel area is a circle
  • the transparent area of the second type of sub-pixel area includes: a first transparent area, a second transparent area, a third transparent area, and a fourth transparent area that are spaced apart from each other; the first transparent area and the second transparent area ,
  • the shape of the boundary between the third transparent area and the fourth transparent area is a right-angled fan shape.
  • the multiple sub-pixel areas include: a first type of sub-pixel area and a second type of sub-pixel area;
  • the shape of the boundary of the transparent area of the first type sub-pixel area is a circle
  • the transparent area of the second type of sub-pixel area includes: a first transparent area, a second transparent area, a third transparent area, and a fourth transparent area that are spaced apart from each other; the first transparent area and the second transparent area ,
  • the shape of the boundary between the third transparent area and the fourth transparent area is a right-angled fan shape.
  • the first interval is the same as the second interval, and the first interval is the interval between the transparent area and the first adjacent transparent area along the first direction, and the first interval
  • the second interval is the interval between the transparent area and the second adjacent transparent area along the second direction, the first adjacent transparent area and the transparent area are arranged in the first direction, and the second adjacent transparent area is arranged in the first direction.
  • the transparent areas are arranged along the second direction.
  • the center of the transparent area in the first type of sub-pixel area coincides with the center of the first type of sub-pixel area
  • the center of the first type of sub-pixel area is the first axis of symmetry The point of intersection with the second axis of symmetry.
  • the diameter of the transparent area in the first-type sub-pixel area is smaller than the length of the first-type sub-pixel area along the first direction, and smaller than the first-type sub-pixel area The length along the second direction;
  • the display area in the first type sub-pixel area surrounds the transparent area in the first type sub-pixel area.
  • the first transparent area is located in the first area
  • the second transparent area is located in the second area
  • the third transparent area is Located in the third area
  • the fourth transparent area is located in the fourth area
  • the first transparent area and the second transparent area are mirror-symmetrical with respect to the second axis of symmetry
  • the third transparent area and the fourth transparent area are mirror-symmetrical with respect to the second axis of symmetry
  • the first transparent area and the third transparent area are mirror-symmetrical with respect to the first axis of symmetry
  • the second transparent area and the fourth transparent area are mirror-symmetrical with respect to the first axis of symmetry.
  • the right-angled sector includes: an arc
  • the arc is tangent to the boundary of the second type sub-pixel area.
  • the right-angle sector includes: a third axis of symmetry
  • the third axis of symmetry intersects the first axis of symmetry and the second axis of symmetry respectively.
  • the multiple sub-pixel areas include: a first type of sub-pixel area and a second type of sub-pixel area, the types of the sub-pixel areas located in the same column are the same, and the types of the sub-pixel areas located in the same row different;
  • two second-type sub-pixel areas are arranged between adjacent first-type sub-pixel areas; and one first-type sub-pixel area is arranged between adjacent second-type sub-pixel areas.
  • the display area includes: a driving structure layer and a light emitting structure layer sequentially disposed on the substrate;
  • the driving structure layer is connected to the light emitting structure layer, and is configured to drive the light emitting structure layer to emit light.
  • the light-emitting structure layer includes: a first electrode, an organic light-emitting layer, and a second electrode;
  • the first electrode is located on a side of the organic light emitting layer close to the substrate, and the second electrode is located on a side of the organic light emitting layer away from the substrate;
  • the first electrode is a reflective electrode
  • the second electrode is a transmissive electrode and is a planar electrode
  • the orthographic projection of the second electrode on the substrate coincides with the orthographic projection of the transparent area on the substrate.
  • the present disclosure also provides a display device, including: the above-mentioned display substrate.
  • FIG. 1 is a schematic diagram of a top view structure of a display substrate provided by an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of another top view structure of a display substrate provided by an embodiment of the disclosure.
  • FIG. 3 is a schematic diagram of another top view structure of the display substrate provided by an embodiment of the disclosure.
  • FIG. 4 is a cross-sectional view of a display substrate provided by an embodiment of the disclosure.
  • Fig. 5 is a diffraction spectrum corresponding to the display substrate provided in Fig. 1;
  • Fig. 6 is a diffraction spectrum corresponding to the display substrate provided in Fig. 2;
  • FIG. 7 is a diffraction spectrum corresponding to the display substrate provided in FIG. 3.
  • the transparent display device includes: a light-transmitting area and a non-light-transmitting area.
  • the image of the transparent display device will have ghost images.
  • the main reason is that the distant scene is composed of point light sources.
  • the light emitted by each point light source reaches the transparent display device, it is coherent light, while the light transmission in the transparent display panel Areas and non-transmissive areas are periodically distributed in the same direction.
  • the periodically arranged light-transmitting areas and non-transmitting areas form a grating-like structure. Therefore, the transmitted light will be arranged along the light-transmitting and non-transmitting areas. Diffraction phenomenon occurs in the cloth direction, which causes ghosting of the displayed image, resulting in blurring of the image, and reducing the poor display effect of the transparent display device.
  • FIG. 1 is a schematic top view of a display substrate provided by an embodiment of the disclosure
  • FIG. 2 is another schematic top view of a display substrate provided by an embodiment of the disclosure
  • FIG. 3 is another top view of a display substrate provided by an embodiment of the disclosure
  • FIG. 4 is a cross-sectional view of a display substrate provided by an embodiment of the disclosure.
  • the display substrate provided by the embodiment of the present disclosure may include: a substrate 10 and a plurality of sub-pixel regions 100 arranged in a matrix on the substrate 10.
  • Each sub-pixel area includes: a display area 100A and a transparent area 100B; the transparent area 100B in each sub-pixel area includes at least an arc-shaped boundary.
  • the display area refers to a pixel unit that displays an image and a pixel drive circuit, and cannot transmit background light on the back of the display substrate or an area with low background light transmittance.
  • the transparent area refers to an area that does not have a pixel unit and a pixel drive circuit for displaying an image, and can transmit the background light on the back of the display substrate or the background light transmittance area.
  • the display substrate may be an organic light emitting diode transparent display substrate, a liquid crystal transparent display substrate, or a transflective transparent display substrate, which is not limited in the embodiment of the present disclosure.
  • the substrate 10 may be a rigid substrate or a flexible substrate.
  • the rigid substrate can be but not limited to one or more of glass and metal sheet;
  • the flexible substrate can be but not limited to polyethylene terephthalate, ethylene terephthalate, polyether One or more of ether ketone, polystyrene, polycarbonate, polyarylate, polyarylate, polyimide, polyvinyl chloride, polyethylene, and textile fiber.
  • the arrangement manner of the multiple sub-pixel regions may be a stripe arrangement, or may be other arrangement manners such as a fringe shape, which is not limited in the embodiment of the present disclosure.
  • the areas of adjacent sub-pixel regions may be the same or may be different, which is not limited in the embodiment of the present disclosure.
  • the areas of the transparent regions in the adjacent sub-pixel regions may be the same or may be different, which is not limited in the embodiment of the present disclosure.
  • the distance between the transparent regions in adjacent sub-pixel regions may be equal or different, which is not limited in the embodiment of the present disclosure.
  • an optical device composed of a large number of parallel slits of equal width and equal interval is called a grating.
  • the slits between the multiple display areas arranged in a single direction are not of equal width and equal spacing, so that the grating cannot be formed, and the light in a single direction can be weakened.
  • Diffraction which evenly disperses the diffraction to all directions, reduces the ghosting of the image in a single direction.
  • the display substrate provided by the embodiment of the present disclosure includes: a substrate and a plurality of sub-pixel areas arranged in a matrix arranged on the substrate; each sub-pixel area includes: a display area and a transparent area; the transparent area in each sub-pixel area includes at least An arc-shaped boundary.
  • the transparent area in each sub-pixel area by setting the transparent area in each sub-pixel area to include at least one arc-shaped boundary, the diffraction of light in a single direction can be reduced, the ghosting of the image can be reduced, the definition of the displayed image is improved, and the display effect of the display substrate is improved.
  • each sub-pixel region 100 may have an axisymmetric structure.
  • the symmetry axis of each sub-pixel area may include: a first symmetry axis and a second symmetry axis.
  • the first symmetry axes of all sub-pixel regions are parallel to each other, and the second symmetry axes of all sub-pixels are parallel to each other.
  • the symmetry axis of the first sub-pixel includes: a first symmetry axis A1 and a second symmetry axis A2.
  • the first direction is the extension direction of the first axis of symmetry
  • the second direction is the extension direction of the second axis of symmetry.
  • the first direction is perpendicular to the second direction, and the plane formed by the first direction and the second direction is parallel to the plane where the transparent display panel is located.
  • the shape of the sub-pixel area may be a rectangle, a square, an approximate square, a parallelogram, or a trapezoid. 1 to 3 illustrate an example in which the shape of the sub-pixel area is a square.
  • each sub-pixel area may be uniformly divided into a first area R1, a second area R2, a third area R3, and a fourth area R4.
  • first area R1 and the second area R2 are arranged along the first direction
  • third area R3 and the fourth area R4 are arranged along the second direction
  • first area R1 and the third area R3 are arranged along the second direction.
  • the second region R and the fourth region R4 are arranged along the second direction.
  • the plurality of sub-pixel regions may include: a first-type sub-pixel region and/or a second-type sub-pixel region.
  • Fig. 1 is an example of each sub-pixel area being a first-type sub-pixel area
  • Fig. 2 is an example of each sub-pixel area being a second-type sub-pixel area
  • Fig. 3 is an example of a plurality of sub-pixel areas including the first sub-pixel area.
  • the type sub-pixel area and the second type sub-pixel area are described as examples.
  • the shape of the boundary of the transparent area of the first type sub-pixel area may be a circle.
  • the first interval is substantially the same as the second interval.
  • the first interval is the interval between the transparent area and the first adjacent transparent area along the first direction
  • the second interval is the interval between the transparent area and the second adjacent transparent area along the second direction
  • the first adjacent The transparent area and the transparent area are arranged along a first direction
  • the second adjacent transparent area and the transparent area are arranged along a second direction.
  • the first interval is approximately the same as the second interval, which can weaken strong diffraction in a single direction and improve the display effect of the display substrate.
  • the center of the transparent area in the first-type sub-pixel area may coincide with the center of the first-type sub-pixel area.
  • the center of the first type of sub-pixel area is the intersection of the first symmetry axis and the second symmetry axis.
  • the diameter D of the transparent area in the first type sub-pixel area may be smaller than the length L1 of the first type sub-pixel area along the first direction, and smaller than the first type sub-pixel area.
  • the display area 100A in the first type sub-pixel area surrounds the transparent area 100B in the first type sub-pixel area.
  • the transparent area of the second type of sub-pixel area may include: a first transparent area T1, a second transparent area T2, and a third transparent area T3 that are spaced apart from each other.
  • the fourth transparent area T4; the shape of the boundary of the first transparent area T1, the second transparent area T2, the third transparent area T3, and the fourth transparent area T4 is a right-angled fan shape.
  • the first transparent area T1 is located in the first area R1
  • the second transparent area T2 is located in the second area R2.
  • the third transparent area T3 is located in the third area R3
  • the fourth transparent area T4 is located in the fourth area R4.
  • the first transparent area T1 and the second transparent area T2 are mirror-symmetrical with respect to the second axis of symmetry
  • the third transparent area T3 and the fourth transparent area T4 are mirror-symmetrical with respect to the second axis of symmetry
  • the first transparent area T1 and the third transparent area T3 is mirror symmetry with respect to the first symmetry axis
  • the second transparent area T2 and the fourth transparent area T4 are mirror symmetry with respect to the first symmetry axis.
  • the right-angled sector includes a circular arc.
  • the arc is tangent to the boundary of the second type of sub-pixel area.
  • the right-angle sector includes: a third axis of symmetry.
  • the third axis of symmetry intersects the first axis of symmetry and the second axis of symmetry respectively.
  • the third axis of symmetry is the axis of symmetry of the arc.
  • the sub-pixel areas located in the same column are of the same type and are located in the same column.
  • the types of sub-pixel areas of the rows are different.
  • two second-type sub-pixel areas are arranged between adjacent first-type sub-pixel areas; and one first-type sub-pixel area is arranged between adjacent second-type sub-pixel areas.
  • the display area 100A may include: a driving structure layer (not shown in the figure) and a light emitting structure layer 20 sequentially disposed on a substrate.
  • the driving structure layer is connected to the light emitting structure layer, and is configured to drive the light emitting structure layer to emit light.
  • the driving structure layer may include a thin film transistor, a passivation layer, and a planarization layer sequentially arranged in a direction perpendicular to the substrate.
  • multiple thin film transistors can form a pixel drive circuit.
  • the drain electrode of the thin film transistor is electrically connected to the light-emitting structure layer through the passivation layer and the planarization layer via hole.
  • the thin film transistor may include: an active layer, a gate electrode, and a source and drain electrode.
  • the thin film transistor may have a bottom gate structure or a top gate structure, which is not limited in the embodiments of the present disclosure.
  • the flat layer can ensure that the light emitted by the light-emitting structure layer is uniform.
  • the thin film transistor may be a single crystal silicon thin film transistor, a low temperature polysilicon thin film transistor, or an oxide thin film transistor.
  • the channel ratio (the ratio of the width of the channel layer to the length of the channel layer) of a single crystal silicon thin film transistor is greater than 6, and the channel ratio of an oxide thin film transistor is greater than 2.
  • the channel ratio of low-temperature polysilicon thin film transistors is greater than 0.5.
  • low-temperature polysilicon thin film transistors are used, so that the size of thin film transistors can be made smaller, so that the display area occupies a smaller proportion of the pixel area, which is beneficial to improve the transparent display effect of the display substrate.
  • the thin film When the transistor is made smaller, the sub-pixel area can also be made smaller, which is also conducive to improving the resolution of the display substrate.
  • the light emitting structure layer may include: a plurality of light emitting elements. One electrode of the light-emitting element is connected to the pixel driving circuit.
  • the light emitting element may be an organic light emitting diode (Organic Light Emitting Diode, OLED for short).
  • OLED Organic Light Emitting Diode
  • the light emitting structure layer may include: a first electrode 21, an organic light emitting layer 22 and a second electrode 23.
  • the first electrode 21 is located on the side of the organic light emitting layer 22 close to the substrate 10
  • the second electrode 23 is located on the side of the organic light emitting layer 22 away from the substrate 10.
  • the first electrode may be a reflective electrode.
  • the manufacturing material of the reflective electrode may include: copper or aluminum.
  • the organic light emitting layer may include a light emitting material layer, and may further include at least one of an electron transport layer, an electron injection layer, a hole transport layer, and a hole injection layer.
  • the second electrode may be a transmissive electrode and a planar electrode.
  • the transmission electrode can be made of a transparent conductive material, such as indium tin oxide or zinc tin oxide.
  • the orthographic projection of the second electrode 23 on the substrate 10 may coincide with the orthographic projection of the transparent area 100B on the substrate 10.
  • the display substrate may further include: a pixel defining layer 24.
  • the pixel defining layer may be an inorganic transparent material, or may be an organic transparent material.
  • Inorganic transparent materials or organic transparent materials do not affect the light transmittance of the transparent area.
  • the inorganic transparent material may be silicon dioxide or silicon nitride, and the organic transparent material may be polyimide.
  • the display substrate may further include: an encapsulation layer disposed on a side of the second electrode away from the substrate.
  • the encapsulation layer can isolate the light-emitting structure layer from the outside, avoid water and oxygen from invading the organic light-emitting layer, and prolong the service life of the display substrate.
  • the surface of the encapsulation layer is flat, other film layers that are beneficial to the display effect of the transparent display substrate can be provided on the display substrate.
  • the transparent area may include a transparent material layer configured to achieve light transmission.
  • the relative intensity of the secondary diffraction peak along the first direction when the light of the display substrate provided in Figure 1 is diffracted is greater than the secondary diffraction peak along the first direction when the light of the display substrate provided in Figure 2 is diffracted, the display substrate provided in Figure 2
  • the relative intensity of the secondary diffraction peak along the first direction when the light is diffracted is greater than the secondary diffraction peak along the first direction when the light of the display substrate provided in FIG. 3 is diffracted.
  • FIG. 5 is the diffraction spectrum corresponding to the display substrate provided in FIG. 1;
  • FIG. 6 is the diffraction spectrum corresponding to the display substrate provided in FIG. 2;
  • FIG. 7 is the diffraction spectrum corresponding to the display substrate provided in FIG. 3.
  • the horizontal coordinate refers to the ratio of the wavelength of the light to the distance between the image and the display substrate
  • the vertical coordinate refers to the ratio between the light intensity and the maximum light intensity
  • H refers to the horizontal direction.
  • V refers to the vertical direction. Since the transparent area in each sub-pixel area of FIG. 5 and FIG. 6 is the same, and the transparent area is a center-symmetric structure, the diffraction spectra along the horizontal and vertical directions in FIG. 5 and FIG.
  • the embodiment of the present disclosure also provides a display device, including a display substrate.
  • the display device may be any device that displays images, whether in motion (e.g., video) or fixed (e.g., still images), and regardless of text or pictures. More specifically, the contemplated embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or Portable computers, GPS receivers/navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, TV monitors, flat panel displays, computer monitors, car monitors (e.g., odometer monitors, etc.) ( For example, for a display of an image of a piece of jewelry) and so on.
  • PDAs personal data assistants
  • portable computers GPS receivers/navigators
  • MP4 video players camcorders
  • game consoles watches
  • watches clocks
  • calculators calculators
  • TV monitors flat panel displays
  • computer monitors e.g., odometer monitors, etc.
  • the display substrate is the display substrate provided by any of the foregoing embodiments, and the implementation principle and the implementation effect are similar, and will not be repeated here.

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Abstract

一种显示基板和显示装置，其中，显示基板包括：衬底和设置在衬底上的矩阵排布的多个子像素区域；每个子像素区域包括：显示区域和透明区域；每个子像素区域中的透明区域的边界为非直线形。

Description

一种显示基板和显示装置
本申请要求于2020年5月21日提交中国专利局、申请号为202010433987.1、发明名称为“一种显示基板和显示装置”的中国专利申请的优先权，其内容应理解为通过引入的方式并入本申请中。
技术领域
本公开实施例涉及但不限于显示技术领域，具体涉及一种显示基板和显示装置。
背景技术
随着显示技术的日益发展，各种新型的显示技术不断涌现。其中，透明显示技术越来越受到人们的关注。透明显示装置是指可形成透明显示状态，以使观看者看到显示装置的显示图像以及显示装置背后的景象的显示装置。
发明概述
以下是对本公开详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
第一方面，本公开提供了一种显示基板，包括：衬底和设置在所述衬底上的矩阵排布的多个子像素区域；每个子像素区域包括：显示区域和透明区域；
每个子像素区域中的透明区域包括至少一段弧形边界。
在一些可能的实现方式中，每个子像素区域为轴对称结构，每个子像素区域的对称轴包括：第一对称轴和第二对称轴；
第一方向为所述第一对称轴的延伸方向，第二方向为所述第二对称轴的延伸方向；所述第一方向垂直于所述第二方向；所述第一方向与所述第二方向构成的平面与显示基板所在平面平行；
每个子像素区域被均匀划分为第一区域、第二区域、第三区域和第四区域；
所述第一区域和所述第二区域沿第一方向排布；所述第三区域和所述第四区域沿第二方向排布；所述第一区域和所述第三区域沿第二方向排布，所述第二区域和所述第四区域沿第二方向排布。
在一些可能的实现方式中，所述多个子像素区域包括：第一类型子像素区域或第二类型子像素区域；
所述第一类型子像素区域的透明区域的边界的形状为圆形；
所述第二类型子像素区域的透明区域包括：相互间隔设置的第一透明区域、第二透明区域、第三透明区域和第四透明区域；所述第一透明区域、所述第二透明区域、所述第三透明区域和所述第四透明区域的边界的形状为直角扇形。
在一些可能的实现方式中，所述多个子像素区域包括：第一类型子像素区域和第二类型子像素区域；
所述第一类型子像素区域的透明区域的边界的形状为圆形；
所述第二类型子像素区域的透明区域包括：相互间隔设置的第一透明区域、第二透明区域、第三透明区域和第四透明区域；所述第一透明区域、所述第二透明区域、所述第三透明区域和所述第四透明区域的边界的形状为直角扇形。
在一些可能的实现方式中，对于至少部分透明区域，第一间隔与第二间隔相同，所述第一间隔为透明区域与第一相邻透明区域之间沿第一方向的间隔，所述第二间隔为透明区域与第二相邻透明区域之间沿第二方向的间隔，所述第一相邻透明区域与所述透明区域沿第一方向排布，所述第二相邻透明区域与所述透明区域沿第二方向排布。
在一些可能的实现方式中，所述第一类型子像素区域中的透明区域的圆心与第一类型子像素区域的中心重合，所述第一类型子像素区域的中心为所述第一对称轴和所述第二对称轴的交点。
在一些可能的实现方式中，所述第一类型子像素区域中的所述透明区域 的直径小于所述第一类型子像素区域沿第一方向的长度，且小于所述第一类型子像素区域沿第二方向的长度；
所述第一类型子像素区域中的显示区域包围所述第一类型子像素区域中的透明区域。
在一些可能的实现方式中，对于第二类型子像素区域，所述第一透明区域位于所述第一区域中，所述第二透明区域位于所述第二区域中，所述第三透明区域位于所述第三区域中，所述第四透明区域位于所述第四区域中；
所述第一透明区域和所述第二透明区域相对于所述第二对称轴镜像对称，所述第三透明区域和所述第四透明区域相对于所述第二对称轴镜像对称，所述第一透明区域和所述第三透明区域相对于所述第一对称轴镜像对称，所述第二透明区域和所述第四透明区域相对于所述第一对称轴镜像对称。
在一些可能的实现方式中，所述直角扇形包括：圆弧；
所述圆弧与所述第二类型子像素区域的边界相切。
在一些可能的实现方式中，所述直角扇形包括：第三对称轴；
所述第三对称轴分别与所述第一对称轴和所述第二对称轴相交。
在一些可能的实现方式中，当多个子像素区域包括：第一类型子像素区域和第二类型子像素区域时，位于同一列的子像素区域的类型相同，位于同一行的子像素区域的类型不同；
对于同一行子像素区域，相邻第一类型子像素区域之间设置有两个第二类型子像素区域；相邻第二类型子像素区域之间设置有一个第一类型子像素区域。
在一些可能的实现方式中，所述显示区域包括：依次设置在所述衬底上的驱动结构层和发光结构层；
所述驱动结构层与所述发光结构层连接，设置为驱动所述发光结构层发光。
在一些可能的实现方式中，所述发光结构层包括：第一电极、有机发光层和第二电极；
所述第一电极位于所述有机发光层靠近所述衬底的一侧，所述第二电极位于所述有机发光层远离所述衬底的一侧；
所述第一电极为反射电极，所述第二电极为透射电极，且为面状电极；
所述第二电极在所述衬底上的正投影与所述透明区域在所述衬底上的正投影重合。
第二方面，本公开还提供了一种显示装置，包括：上述显示基板。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
附图用来提供对本公开技术方案的理解，并且构成说明书的一部分，与本公开的实施例一起用于解释本公开的技术方案，并不构成对本公开技术方案的限制。
图1为本公开实施例提供的显示基板的一个俯视结构示意图；
图2为本公开实施例提供的显示基板的另一俯视结构示意图；
图3为本公开实施例提供的显示基板的又一俯视结构示意图；
图4为本公开实施例提供的显示基板的剖视图；
图5为图1提供的显示基板对应的衍射光谱；
图6为图2提供的显示基板对应的衍射光谱；
图7为图3提供的显示基板对应的衍射光谱。
详述
本公开描述了多个实施例，但是该描述是示例性的，而不是限制性的，并且对于本领域的普通技术人员来说，在本公开所描述的实施例包含的范围内可以有更多的实施例和实现方案。尽管在附图中示出了许多可能的特征组合，并在详述中进行了讨论，但是所公开的特征的许多其它组合方式也是可能的。除非特意加以限制的情况以外，任何实施例的任何特征或元件可以与任何其它实施例中的任何其他特征或元件结合使用，或可以替代任何其它实 施例中的任何其他特征或元件。
本公开包括并设想了与本领域普通技术人员已知的特征和元件的组合。本公开已经公开的实施例、特征和元件也可以与任何常规特征或元件组合，以形成由权利要求限定的技术方案。任何实施例的任何特征或元件也可以与来自其它技术方案的特征或元件组合，以形成另一个由权利要求限定的技术方案。因此，在本公开中示出的任何特征可以单独地或以任何适当的组合来实现。因此，除了根据所附权利要求及其等同替换所做的限制以外，实施例不受其它限制。此外，可以在所附权利要求的保护范围内进行各种修改和改变。
除非另外定义，本公开中使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅表示相对位置关系，当被描述的对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
透明显示装置包括：透光区和非透光区域。透明显示装置的图像会出现重影，究其原因主要是由于远处景物是由点光源组成，每个点光源射出的光线到达透明显示装置时都是相干光，而透明显示面板中的透光区与非透光区沿同一方向周期性分布的，周期性排布的透光区和非透光区构成类似光栅结构，因此，会使得透射的光线沿透光区和非透光区域的排布方向发生衍射现象，使得显示图像出现重影，导致图像模糊，降低了透明显示装置的显示效果不佳。
图1为本公开实施例提供的显示基板的一个俯视结构示意图，图2为本公开实施例提供的显示基板的另一俯视结构示意图，图3为本公开实施例提供的显示基板的又一俯视结构示意图，图4为本公开实施例提供的显示基板的剖视图。如图1至4所示，本公开实施例提供的显示基板可以包括：衬底 10和设置在衬底10上的矩阵排布的多个子像素区域100。每个子像素区域包括：显示区域100A和透明区域100B；每个子像素区域中的透明区域100B包括至少一段弧形边界。
在一种示例性实施例中，显示区域指的是具有显示图像的像素单元和像素驱动电路，且不能透射显示基板的背面的背景光或背景光透射率较小的区域。透明区域指的是不具有显示图像的像素单元以及像素驱动电路，且可以透射显示基板背面的背景光或背景光透射率较大的区域。
在一种示例性实施例中，显示基板可以为有机发光二极管透明显示基板，液晶透明显示基板或者半透半反式透明显示基板，本公开实施例对此不作任何限定。
在一种示例性实施例中，衬底10可以为刚性衬底或柔性衬底。刚性衬底可以为但不限于玻璃、金属萡片中的一种或多种；柔性衬底可以为但不限于聚对苯二甲酸乙二醇酯、对苯二甲酸乙二醇酯、聚醚醚酮、聚苯乙烯、聚碳酸酯、聚芳基酸酯、聚芳酯、聚酰亚胺、聚氯乙烯、聚乙烯、纺织纤维中的一种或多种。
在一种示例性实施例中，多个子像素区域的排列方式可以是条状排列，或者可以是品字形等其他排列方式，本公开实施例对此不作任何限定。
在一种示例性实施例中，相邻子像素区域的面积可以相同，或者可以不同，本公开实施例对此不做限定。
在一种示例性实施例中，相邻子像素区域中的透明区域的面积可以相同，或者可以不同，本公开实施例对此不做限定。
在一种示例性实施例中，相邻子像素区域中的透明区域之间的距离可以相等，或者可以不同，本公开实施例对此不做限定。
根据光栅的定义可知，由大量等宽等间距的平行狭缝构成的光学器件称为光栅。当每个子像素区域中的透明区域的边界为非直线形时，沿单一方向排列的多个显示区域之间的狭缝不是等宽和等间距，就无法构成光栅，可以减弱单一方向上光线的衍射，将衍射平均分散至各个方向，减弱了单一方向上的图像的重影。
本公开实施例提供的显示基板包括：衬底和设置在衬底上的矩阵排布的多个子像素区域；每个子像素区域包括：显示区域和透明区域；每个子像素区域中的透明区域包括至少一段弧形边界。本公开通过设置每个子像素区域中的透明区域包括至少一段弧形边界，可以减弱单一方向上光线的衍射，减弱图像的重影，提高了显示图像的清晰度，提升了显示基板的显示效果。
在一种示例性实施例中，如图1至3所示，每个子像素区域100可以为轴对称结构。其中，每个子像素区域的对称轴可以包括：第一对称轴和第二对称轴。
在一种示例性实施例中，所有子像素区域的第一对称轴相互平行，所有子像素的第二对称轴相互平行。
以第一个子像素区域为例，如图1所示，第一个子像素的对称轴包括：第一对称轴A1和第二对称轴A2。
在一种示例性实施例中，第一方向为第一对称轴的延伸方向，第二方向为第二对称轴的延伸方向。第一方向垂直于第二方向，且第一方向与第二方向构成的平面与透明显示面板所在平面平行。
在一种示例性实施例中，子像素区域的形状可以为矩形、方形、近似方形、平行四边形或者梯形。图1至3是以子像素区域的形状为方形为例进行说明的。
在一种示例性实施例中，如图2和3所示，每个子像素区域可以被均匀划分为第一区域R1、第二区域R2、第三区域R3和第四区域R4。其中，第一区域R1和第二区域R2沿第一方向排布，第三区域R3和第四区域R4沿第二方向排布，第一区域R1和第三区域R3沿第二方向排布，第二区域R和第四区域R4沿第二方向排布。
在一种示例性实施例中，多个子像素区域可以包括：第一类型子像素区域和/或第二类型子像素区域。图1是以每个子像素区域为第一类型子像素区域为例进行说明的，图2是以每个子像素区域为第二类型子像素区域为例，图3是以多个子像素区域包括第一类型子像素区域和第二类型子像素区域为例进行说明的。
在一种示例性实施例中，如图1所示，第一类型子像素区域的透明区域的边界的形状可以为圆形。
在一种示例性实施例中，如图1所示，对于至少部分透明区域，第一间隔与第二间隔大致相同。其中，第一间隔为透明区域与第一相邻透明区域之间沿第一方向的间隔，第二间隔为透明区域与第二相邻透明区域之间沿第二方向的间隔，第一相邻透明区域与所述透明区域沿第一方向排布，第二相邻透明区域与所述透明区域沿第二方向排布。对于至少部分透明区域，第一间隔与第二间隔大致相同，可以弱化单一方向的强衍射，提升显示基板的显示效果。
在一种示例性实施例中，第一类型子像素区域中的透明区域的圆心可以与第一类型子像素区域的中心重合。第一类型子像素区域的中心为第一对称轴和第二对称轴的交点。
在一种示例性实施例中，如图1和3所示，第一类型子像素区域中的透明区域的直径D可以小于第一类型子像素区域沿第一方向的长度L1，且小于第一类型子像素区域沿第二方向的长度L2。第一类型子像素区域中的显示区域100A包围第一类型子像素区域中的透明区域100B。
在一种示例性实施例中，如图2和3所示，第二类型子像素区域的透明区域可以包括：相互间隔设置的第一透明区域T1、第二透明区域T2、第三透明区域T3和第四透明区域T4；第一透明区域T1、第二透明区域T2、第三透明区域T3和第四透明区域T4的边界的形状为直角扇形。
在一种示例性实施例中，如图2和3所示，对于每个第二类型子像素区域，第一透明区域T1位于第一区域R1中，第二透明区域T2位于第二区域R2中，第三透明区域T3位于第三区域R3中，第四透明区域T4位于第四区域R4中。
第一透明区域T1和第二透明区域T2相对于第二对称轴镜像对称，第三透明区域T3和第四透明区域T4相对于第二对称轴镜像对称，第一透明区域T1和第三透明区域T3相对于第一对称轴镜像对称，第二透明区域T2和第四透明区域T4相对于第一对称轴镜像对称。
在一种示例性实施例中，如图2和3所示，直角扇形包括：圆弧。其中， 圆弧与第二类型子像素区域的边界相切。
在一种示例性实施例中，直角扇形包括：第三对称轴。其中，第三对称轴分别与第一对称轴和第二对称轴相交。第三对称轴是圆弧的对称轴。
在一种示例性实施例中，如图3所示，当多个子像素区域包括：第一类型子像素区域和第二类型子像素区域时，位于同一列的子像素区域的类型相同，位于同一行的子像素区域的类型不同。
对于同一行子像素区域，相邻第一类型子像素区域之间设置有两个第二类型子像素区域；相邻第二类型子像素区域之间设置有一个第一类型子像素区域。
在一种示例性实施例中，如图4所示，显示区域100A可以包括：依次设置在衬底上的驱动结构层(图中未示出)和发光结构层20。驱动结构层与发光结构层连接，设置为驱动发光结构层发光。
在一种示例性实施例中，驱动结构层可以包括：沿垂直于衬底方向依次设置的薄膜晶体管、钝化层和平坦层。其中，多个薄膜晶体管可以组成像素驱动电路。薄膜晶体管的漏电极通过钝化层和平坦层过孔与发光结构层电连接。
在一种示例性实施例中，薄膜晶体管可以包括：有源层、栅电极和源漏电极。薄膜晶体管可以为底栅结构或者顶栅结构，本公开实施例对此不做任何限定。
一种示例性实施例中，平坦层可以保证发光结构层发出的光线均匀。
一种示例性实施例中，薄膜晶体管可以为单晶硅薄膜晶体管、低温多晶硅薄膜晶体管或者氧化物薄膜晶体管。通常情况下，为了满足薄膜晶体管的驱动电流，单晶硅薄膜晶体管的沟道比(沟道层的宽度与沟道层的长度之比)要大于6，氧化物薄膜晶体管的沟道比要大于2，低温多晶硅薄膜晶体管的沟道比要大于0.5。为了减小薄膜晶体管的尺寸，采用低温多晶硅薄膜晶体管，这样薄膜晶体管的尺寸可以做得较小，使得显示区域占像素区域的比例较小，因而有利于提高显示基板的透明显示效果，此外，薄膜晶体管做得较小时，子像素区域也可以做得较小，因而也有利于提高显示基板的分辨率。
在一种示例性实施例中，发光结构层可以包括：多个发光元件。发光元件的一个电极与像素驱动电路连接。
在一种示例性实施例中，发光元件可以为有机发光二极管(Organic Light Emitting Diode，简称OLED)。
在一种示例性实施例中，如图4所示，发光结构层可以包括：第一电极21、有机发光层22和第二电极23。第一电极21位于有机发光层22靠近衬底10的一侧，第二电极23位于有机发光层22远离衬底10的一侧。
在一种示例性实施例中，第一电极可以为反射电极。其中，反射电极的制作材料可以包括：铜或铝。
在一种示例性实施例中，有机发光层可以包括：发光材料层，还可以包括电子传输层、电子注入层、空穴传输层以及空穴注入层中的至少一层。
在一种示例性实施例中，第二电极可以为透射电极，且为面状电极。其中，透射电极的制作材料可以为透明导电材料，例如氧化铟锡或者氧化锌锡。
在一种示例性实施例中，如图4所示，第二电极23在衬底10上的正投影可以与透明区域100B在衬底10上的正投影重合。
在一种示例性实施例中，如图4所示，显示基板还可以包括：像素界定层24。
在一种示例性实施例中，像素界定层可以为无机透明材料，或者可以为有机透明材料。无机透明材料或有机透明材料不影响透明区域的透光率。其中，无机透明材料可以为二氧化硅或氮化硅，有机透明材料可以为聚酰亚胺。
在一种示例性实施例，显示基板还可以包括：设置在第二电极远离衬底一侧的封装层。封装层可以将发光结构层与外界隔离，避免了水和氧气入侵到有机发光层中，延长了显示基板的使用寿命。另外，由于封装层的表面平坦，可以在显示基板上设置其他有利于透明显示基板的显示效果的膜层。
在一种示例性实施例中，透明区域可以包括设置为实现透光的透明材料层。
图1提供的显示基板的光线发生衍射时沿第一方向的次级衍射峰相对强度大于图2提供的显示基板的光线发生衍射时沿第一方向的次级衍射峰，图 2提供的显示基板的光线发生衍射时沿第一方向的次级衍射峰相对强度大于图3提供的显示基板的光线发生衍射时沿第一方向的次级衍射峰。图1至图3提供的显示基板的光线发生衍射时沿第二方向存在同等强度的弱衍射不良。
图5为图1提供的显示基板对应的衍射光谱；图6为图2提供的显示基板对应的衍射光谱；图7为图3提供的显示基板对应的衍射光谱。如图5至7所示，水平坐标指的是光线的波长与图像与显示基板之间距离的比值，垂直坐标指的是光强与最大光强之间的比值，H指的是水平方向，V指的是垂直方向。由于图5和图6每个子像素区域中的透明区域相同，且透明区域为中心对称结构，因此，图5和图6中的沿水平方向和垂直方向的衍射光谱完全重叠，由于图7中不同列的子像素区域中的透明区域不同，因此，图7中的沿水平方向和垂直方向的衍射光谱并不完全重叠。图5至图7提供的显示基板在发生衍射时，沿水平方向的次级衍射峰峰高依次减弱，由高于20％降至15％以下，有效的降低了光线在水平方向单一区域的衍射强度，使得显示图像的清晰度得到大幅度提升，提升了显示效果。
本公开实施例还提供了一种显示装置，包括：显示基板。
在一种示例性实施例中，显示装置可以是显示不论运动(例如，视频)还是固定(例如，静止图像)的且不论文字还是图画的图像的任何装置。更明确地说，预期实施例可实施在多种电子装置中或与多种电子装置关联，多种电子装置例如(但不限于)移动电话、无线装置、个人数据助理(PDA)、手持式或便携式计算机、GPS接收器/导航器、相机、MP4视频播放器、摄像机、游戏控制台、手表、时钟、计算器、电视监视器、平板显示器、计算机监视器、汽车显示器(例如，里程表显示器等)、导航仪、座舱控制器和/或显示器、相机视图的显示器(例如，车辆中后视相机的显示器)、电子相片、电子广告牌或指示牌、投影仪、建筑结构、包装和美学结构(例如，对于一件珠宝的图像的显示器)等。
显示基板为前述任一个实施例提供的显示基板，实现原理和实现效果类似，在此不再赘述。
本公开中的附图只涉及本公开实施例涉及到的结构，其他结构可参考通常设计。
为了清晰起见，在用于描述本公开的实施例的附图中，层或微结构的厚度和尺寸被放大。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
虽然本公开所揭露的实施方式如上，但所述的内容仅为便于理解本公开而采用的实施方式，并非用以限定本公开。任何本公开所属领域内的技术人员，在不脱离本公开所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本公开的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (14)

  1. 一种显示基板，包括：衬底和设置在所述衬底上的矩阵排布的多个子像素区域；每个子像素区域包括：显示区域和透明区域；
    每个子像素区域中的透明区域包括至少一段弧形边界。
  2. 根据权利要求1所述的显示基板，其中，每个子像素区域为轴对称结构，每个子像素区域的对称轴包括：第一对称轴和第二对称轴；
    第一方向为所述第一对称轴的延伸方向，第二方向为所述第二对称轴的延伸方向；所述第一方向垂直于所述第二方向；所述第一方向与所述第二方向构成的平面与显示基板所在平面平行；
    每个子像素区域被均匀划分为第一区域、第二区域、第三区域和第四区域；
    所述第一区域和所述第二区域沿第一方向排布；所述第三区域和所述第四区域沿第二方向排布；所述第一区域和所述第三区域沿第二方向排布，所述第二区域和所述第四区域沿第二方向排布。
  3. 根据权利要求2所述的显示基板，其中，所述多个子像素区域包括：第一类型子像素区域或第二类型子像素区域；
    所述第一类型子像素区域的透明区域的边界的形状为圆形；
    所述第二类型子像素区域的透明区域包括：相互间隔设置的第一透明区域、第二透明区域、第三透明区域和第四透明区域；所述第一透明区域、所述第二透明区域、所述第三透明区域和所述第四透明区域的边界的形状为直角扇形。
  4. 根据权利要求2所述的显示基板，其中，所述多个子像素区域包括：第一类型子像素区域和第二类型子像素区域；
    所述第一类型子像素区域的透明区域的边界的形状为圆形；
    所述第二类型子像素区域的透明区域包括：相互间隔设置的第一透明区域、第二透明区域、第三透明区域和第四透明区域；所述第一透明区域、所述第二透明区域、所述第三透明区域和所述第四透明区域的边界的形状为直 角扇形。
  5. 根据权利要求3或4所述的显示基板，其中，对于至少部分透明区域，第一间隔与第二间隔相同，所述第一间隔为透明区域与第一相邻透明区域之间沿第一方向的间隔，所述第二间隔为透明区域与第二相邻透明区域之间沿第二方向的间隔，所述第一相邻透明区域与所述透明区域沿第一方向排布，所述第二相邻透明区域与所述透明区域沿第二方向排布。
  6. 根据权利要求3或4所述的显示基板，其中，所述第一类型子像素区域中的透明区域的圆心与第一类型子像素区域的中心重合，所述第一类型子像素区域的中心为所述第一对称轴和所述第二对称轴的交点。
  7. 根据权利要求6所述的显示基板，其中，所述第一类型子像素区域中的所述透明区域的直径小于所述第一类型子像素区域沿第一方向的长度，且小于所述第一类型子像素区域沿第二方向的长度；
    所述第一类型子像素区域中的显示区域包围所述第一类型子像素区域中的透明区域。
  8. 根据权利要求3或4所述的显示基板，其中，对于第二类型子像素区域，所述第一透明区域位于所述第一区域中，所述第二透明区域位于所述第二区域中，所述第三透明区域位于所述第三区域中，所述第四透明区域位于所述第四区域中；
    所述第一透明区域和所述第二透明区域相对于所述第二对称轴镜像对称，所述第三透明区域和所述第四透明区域相对于所述第二对称轴镜像对称，所述第一透明区域和所述第三透明区域相对于所述第一对称轴镜像对称，所述第二透明区域和所述第四透明区域相对于所述第一对称轴镜像对称。
  9. 根据权利要求8所述的显示基板，其中，所述直角扇形包括：圆弧；
    所述圆弧与所述第二类型子像素区域的边界相切。
  10. 根据权利要求9所述的显示基板，其中，所述直角扇形包括：第三对称轴；
    所述第三对称轴分别与所述第一对称轴和所述第二对称轴相交。
  11. 根据权利要求4所述的显示基板，其中，当多个子像素区域包括： 第一类型子像素区域和第二类型子像素区域时，位于同一列的子像素区域的类型相同，位于同一行的子像素区域的类型不同；
    对于同一行子像素区域，相邻第一类型子像素区域之间设置有两个第二类型子像素区域；相邻第二类型子像素区域之间设置有一个第一类型子像素区域。
  12. 根据权利要求1所述的显示基板，其中，所述显示区域包括：依次设置在所述衬底上的驱动结构层和发光结构层；
    所述驱动结构层与所述发光结构层连接，设置为驱动所述发光结构层发光。
  13. 根据权利要求12所述的显示基板，其中，所述发光结构层包括：第一电极、有机发光层和第二电极；
    所述第一电极位于所述有机发光层靠近所述衬底的一侧，所述第二电极位于所述有机发光层远离所述衬底的一侧；
    所述第一电极为反射电极，所述第二电极为透射电极，且为面状电极；
    所述第二电极在所述衬底上的正投影与所述透明区域在所述衬底上的正投影重合。
  14. 一种显示装置，包括：如权利要求1至13任一项所述的显示基板。
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