WO2020258608A1 - 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
WO2020258608A1
WO2020258608A1 PCT/CN2019/112173 CN2019112173W WO2020258608A1 WO 2020258608 A1 WO2020258608 A1 WO 2020258608A1 CN 2019112173 W CN2019112173 W CN 2019112173W WO 2020258608 A1 WO2020258608 A1 WO 2020258608A1
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Prior art keywords
pixel
layer
sub
pixel layer
display panel
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PCT/CN2019/112173
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English (en)
French (fr)
Inventor
王德祺
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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 US16/629,321 priority Critical patent/US11315983B2/en
Publication of WO2020258608A1 publication Critical patent/WO2020258608A1/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
    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • 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
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3026—Top emission
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3031—Two-side emission, e.g. transparent OLEDs [TOLED]
    • 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
    • H10K59/32—Stacked devices having two or more layers, each emitting at different wavelengths
    • 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
    • H10K59/90—Assemblies of multiple devices comprising at least one organic light-emitting element

Definitions

  • the invention relates to the field of display, in particular to a display panel and a display device.
  • OLED Organic Electroluminescent Diode
  • LCD liquid crystal
  • the OLED light-emitting device adopts a sandwich structure. When current is applied to both ends, electrons and holes are injected into the organic light-emitting layer. Different organic light-emitting materials emit different colors of light under excitons, which are used in various display products. .
  • the purpose of the present invention is to solve the technical problem that the pixel resolution of the existing display panel cannot meet the high-end demands of users.
  • the present invention provides a display panel, including: a first substrate; and a second substrate, which is disposed opposite to the first substrate; and further includes two pixel layers, a first pixel layer and a second pixel layer.
  • the first pixel layer is provided on the surface of the first substrate side; the second pixel layer is provided on the surface of the second substrate facing the first pixel layer.
  • each pixel layer includes red sub-pixels, green sub-pixels and blue sub-pixels.
  • the red sub-pixel is a square; the green sub-pixel is a square; and the blue sub-pixel is a rectangle.
  • the side length of the red sub-pixel is equal to the side length of the green sub-pixel.
  • the sum of the area of a red sub-pixel and a green sub-pixel in a pixel layer is equal to the area of a blue sub-pixel in the pixel layer; the area of a red sub-pixel and a green sub-pixel in a pixel layer The sum is equivalent to the area of a blue sub-pixel in another pixel layer.
  • two or more red sub-pixels and two or more green sub-pixels in the same pixel layer are arranged on the same straight line, and a green sub-pixel is arranged between any two adjacent red sub-pixels; two red sub-pixels in the same pixel layer More than one blue sub-pixels are arranged on the same straight line.
  • two adjacent red sub-pixels and green sub-pixels of one pixel layer are all arranged opposite to a blue sub-pixel of another pixel layer.
  • the display panel further includes: a first transparent electrode disposed between the first substrate and the first pixel layer; and a second transparent electrode disposed on the first pixel layer away from the first pixel layer A surface on one side of the transparent electrode.
  • the display panel further includes: a third transparent electrode layer, arranged on the surface of the second pixel layer away from the second substrate; a reflective electrode, arranged on the second pixel layer away from the second substrate The surface on one side of the three transparent electrode layers; and a reflecting mirror, which is arranged between the second substrate and the reflecting electrode.
  • the present invention also provides a display device including the display panel described above.
  • the technical effect of the present invention is to provide a display panel and a display device.
  • the display panel includes two pixel layers.
  • the red sub-pixels and the green sub-pixels on any one pixel layer can be connected to the same pixel layer or another pixel layer.
  • the blue sub-pixels form pixel units, improve the arrangement of the pixel units, increase the number of pixel units, increase the pixel density per unit area, and significantly increase the resolution of the display device.
  • the highest resolution of the display device of the present invention can reach the current
  • the resolution of a technical single-substrate display device is twice as high.
  • FIG. 1 is a schematic diagram of the structure of a display panel according to an embodiment of the present invention.
  • FIG. 2 is a pixel arrangement diagram of a first pixel layer according to an embodiment of the present invention.
  • FIG. 3 is a pixel arrangement diagram of a second pixel layer according to an embodiment of the present invention.
  • First substrate 2. Second substrate; 3. First pixel layer; 4. Second pixel layer; 5. First transparent electrode; 6. Second transparent electrode; 7. Third transparent electrode; 8. Reflection Electrode; 9. Reflector; 10. Transmission layer;
  • the first pixel unit 311, the first blue sub-pixel; 312, the first red sub-pixel; 313, the first green sub-pixel;
  • the second pixel unit 411, the second blue sub-pixel; 412, the second red sub-pixel; 413, the second green sub-pixel.
  • 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 device including a display panel as shown in FIG. 1.
  • the display panel includes a first substrate 1, a second substrate 2, a first pixel layer 3, a second pixel layer 4, and a first The transparent electrode 5, the second transparent electrode 6, the third transparent electrode 7, the reflective electrode 8, the reflective mirror 9, and the transmissive layer 10.
  • the first substrate 1 and the second substrate 2 are arranged oppositely.
  • the first substrate 1 and the second substrate 2 are the same, preferably a TFT substrate, to provide circuit support for the entire display panel.
  • the first transparent electrode 5 is provided on the upper surface of the first substrate 1.
  • the transparent conductive film (TCF) is also called a transparent conductive film, and currently the main application is an ITO film, that is, indium tin oxide (indium tin oxide).
  • the first pixel layer 3 is provided on the upper surface of the first transparent electrode 5.
  • the first pixel layer 3 includes more than two first pixel units 31 (see FIG. 2), and each first pixel unit 31 includes a first blue sub-pixel 311, the first red sub-pixel 312 and the first green sub-pixel 313. The more first pixel units 31 on the first pixel layer 3, the higher the resolution of the display device.
  • the first blue sub-pixel 311 is rectangular, the first red sub-pixel 312 is square, the first green sub-pixel 313 is square, and the side length of the first red sub-pixel 312 is equal to that of the first green sub-pixel. 313, the sum of the area of the first red sub-pixel 312 and the area of the first green sub-pixel 313 is equal to the area of the first blue sub-pixel 311. Since there is a gap between each sub-pixel, the first blue The short side length of the color sub-pixel 311 is smaller than the side length of the first red sub-pixel 312 or the side length of the first green sub-pixel 313.
  • the two or more first red sub-pixels 312 and the first green sub-pixel 313 of the first pixel layer 3 are arranged on the same straight line, and a first green sub-pixel 313 is arranged between any two first red sub-pixels 312.
  • the two or more first blue sub-pixels 313 of the first pixel layer 3 are arranged on the same straight line. The line where the first red sub-pixel 312 and the first green sub-pixel 313 are located in FIG.
  • the line where the first blue sub-pixel 311 is located are arranged oppositely and spaced apart, so that the first red sub-pixel 312 and the first green sub-pixel 313 are both It can form the first pixel unit 31 with the first blue sub-pixel 311 on the left side, and can form the first pixel unit 31 with the first blue sub-pixel 311 on the right side, increasing the number of the first pixel unit 31 on the first pixel layer 3. The number can further improve the resolution of the display device.
  • the second transparent electrode 6 is provided on the upper surface of the first pixel layer 3, and the transparent conductive film (TCF) is also called a transparent conductive film.
  • TCF transparent conductive film
  • ITO film Indium tin oxide (indium tin oxide).
  • the first pixel layer 3 emits light. As shown in FIG. 1, a part of the light is emitted downward to form a first light beam, and the other part of light is emitted upward to form a second light beam. .
  • the first light beam exits downward and exits from the bottom of the first substrate 1, and the second light beam exits upward, passes through the third transparent electrode 7 and the second pixel layer 4, and then is reflected downward by the mirror 9 and passes through
  • the second pixel layer 4, the third transparent electrode 7, the transmission layer 10, the second transparent electrode 6, the first pixel layer 3, and the first transparent electrode 5 emit light from the bottom of the first substrate 1.
  • the reflecting mirror 9 is arranged on the lower surface of the second substrate 2 to reflect light and reflect upward light beams downward so that all light beams exit from the bottom of the first substrate 1.
  • the reflector 9 is a Bragg reflector.
  • the Bragg reflector also called a distributed Bragg reflector
  • the Bragg reflector is a reflector structure that includes an adjustable multilayer structure composed of two optical materials. The most commonly used is a quarter mirror, in which the thickness of each layer corresponds to a quarter of the wavelength. The latter conditions apply to normal incidence. If the reflector is used for a larger angle of incidence, a relatively larger layer thickness is required. Fresnel reflection occurs at each interface of the two materials. At the working wavelength, the optical path difference of the reflected light at two adjacent interfaces is half a wavelength.
  • the sign of the reflection coefficient at the interface will also change. Therefore, all the reflected light at the interface destructively interferes, resulting in strong reflection.
  • the reflectivity is determined by the number of layers of the material and the refractive index difference between the materials.
  • the reflection bandwidth is mainly determined by the refractive index difference.
  • Bragg's law assumes that the incident wave is specularly reflected from parallel atomic planes in the crystal, and each plane reflects a small part of the radiation, like a slightly silvered mirror. In this kind of mirror-like specular reflection, the reflection angle is equal to the incident angle. When reflections from parallel atomic planes interfere constructively, a diffracted beam is obtained.
  • the reflective electrode 8 is provided on the lower surface of the reflective mirror 9 to make the second pixel layer 4 emit light and make the emitted second light beams exit downward, so that all light beams exit from the bottom of the first substrate 1.
  • the second pixel layer 4 is provided on the lower surface of the reflective electrode 8.
  • the second pixel layer 4 includes more than two second pixel units 41 (see FIG. 3), and each second pixel unit 41 includes a second blue sub-pixel 411, The second red sub-pixel 412 and the second green sub-pixel 413. The more second pixel units 41 on the second pixel layer 4, the higher the resolution of the display device.
  • the second blue sub-pixel 411 is rectangular, the second red sub-pixel 412 is square, and the second green sub-pixel 413 is square.
  • the side length of the second red sub-pixel 412 is equal to that of the second green sub-pixel. 413, the sum of the area of the second red sub-pixel 412 and the area of the second green sub-pixel 413 is equal to the area of the second blue sub-pixel 411. Since there are gaps between the sub-pixels, the second blue The short side length of the color sub-pixel 411 is smaller than the side length of the second red sub-pixel 412 or the side length of the second green sub-pixel 413.
  • Two or more second red sub-pixels 412 and second green sub-pixels 413 of the second pixel layer 4 are arranged on the same straight line, and a second green sub-pixel 413 is arranged between any two second red sub-pixels 412.
  • Two or more second blue sub-pixels 413 of the second pixel layer 4 are arranged on the same straight line. The line where the second red sub-pixel 412 and the second green sub-pixel 413 are located in FIG.
  • the line where the second blue sub-pixel 411 is located are arranged oppositely and spaced apart, so that the second red sub-pixel 412 and the second green sub-pixel 413 are both It can form the second pixel unit 41 with the second blue sub-pixel 411 on the left side, and can form the second pixel unit 41 with the second blue sub-pixel 411 on the right side, adding the second pixel unit 41 on the second pixel layer 4 The number can further improve the resolution of the display device.
  • the second pixel layer 4 is opposite to the first pixel layer 3, and the first red sub-pixel 312 and the first green sub-pixel 313 on the first pixel layer 3 are opposite to the second blue sub-pixel 411 on the second pixel layer 4 Setting, the area of the second blue sub-pixel 411 on the second pixel layer 4 is equal to the sum of the area of the first red sub-pixel 312 and the area of the first green sub-pixel 313 on the first pixel layer 3, that is, the first The first red sub-pixel 312 and the first green sub-pixel 313 on the pixel layer 3 can form a new pixel unit with the second blue sub-pixel 411 on the second pixel layer 4.
  • the double-layer pixel layer described in this embodiment enables the effective pixel density of the display panel to be twice as high as the effective pixel density of the single-pixel layer display panel, which can theoretically double the resolution of the display device.
  • the second red sub-pixel 412 and the second green sub-pixel 413 on the second pixel layer 4 are arranged opposite to the first blue sub-pixel 311 on the first pixel layer 3, and the first blue sub-pixel on the first pixel layer 3
  • the area of the pixel 311 is equal to the sum of the area of the second red sub-pixel 412 and the area of the second green sub-pixel 413 on the second pixel layer 4, that is, the second red sub-pixel 412 and the second red sub-pixel on the second pixel layer 4
  • the green sub-pixel 413 and the first blue sub-pixel 311 on the first pixel layer 3 can form a new pixel unit.
  • the double-layer pixel layer described in this embodiment enables the effective pixel density of the display panel to be twice as high as the effective pixel density of the single-pixel layer display panel, which can theoretically double the resolution of the display device.
  • the third transparent electrode 7 is provided on the lower surface of the second pixel layer 4, and the transparent conductive film (TCF) is also called a transparent conductive film. At present, it is mainly used as an ITO film, that is, indium tin oxide (indium tin oxide).
  • the second pixel layer 4 emits light. As shown in FIG. 1, part of the light is emitted downward to form a third light beam, and the other part of the light is emitted upward to form a fourth light beam.
  • the third light beam passes through the second pixel layer 4, the third transparent electrode 7, the second transparent electrode 6, the first pixel layer 3 and the first transparent electrode 5, and exits from the bottom of the first substrate 1.
  • the first light beam is reflected downward by the reflecting mirror 9, and then passes through the second pixel layer 4, the third transparent electrode 7, the transmission layer 10, the second transparent electrode 6, the first pixel layer 3 and the first transparent electrode 5. Emitted from the bottom of the first substrate 1.
  • the first pixel layer 3 emits light to form a first light beam and a second light beam
  • the second pixel layer emits light to form a third light beam and a fourth light beam, both of which are emitted from the bottom of the first substrate 1 to further enhance the brightness of the display panel.
  • the use of dual-pixel layers can double the brightness and resolution of the display panel compared to the existing single-pixel layer display panels.
  • due to the transmission of the light beam it is limited by the transmittance of each transparent layer. And light is lost due to refraction.
  • the brightness and resolution of a dual-pixel layer display panel can be increased by 30% to 60% compared to the existing single-pixel layer display panel.
  • the transmissive layer 10 is provided between the second transparent electrode 6 and the third transparent electrode 7, and the material of the transmissive layer 10 is a material with high transmittance. Its function is to increase the light output of the display panel on the one hand, and on the other hand to increase the light output of the display panel. And the second substrate 2 plays a protective role, so that the two substrates are bonded more closely.
  • the display panel of this embodiment also includes a plurality of organic layers, which are a hole injection layer, a hole transport layer, an electron transport layer, an electron injection layer, etc., which are not described in detail here.
  • the technical effect of the display device of this embodiment is that the display device includes a display panel, and the display panel includes two pixel layers.
  • the red sub-pixel and the green sub-pixel on any one pixel layer can be the same pixel layer or another
  • the blue sub-pixels of a pixel layer form pixel units, the arrangement of the pixel units is improved, the number of pixel units is increased, the pixel density per unit area is increased, and the resolution of the display device is significantly improved.
  • the display panel of this embodiment does not need to add a mask and an evaporation process, which improves the manufacturing efficiency of the display device.

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Abstract

一种显示面板及显示装置，所述显示面板包括第一基板（1）；以及第二基板（2），与所述第一基板（1）相对设置；还包括两个像素层，分别为第一像素层（3）及第二像素层（4）；所述第一像素层（3）设于所述第一基板（1）一侧的表面；所述第二像素层（4）设于所述第二基板（2）朝向所述第一像素层（3）一侧的表面。技术效果在于，提高显示面板的像素分辨率。

Description

显示面板及显示装置 技术领域
本发明涉及显示领域，特别涉及一种显示面板及显示装置。
 背景技术
OLED（有机电致发光二极管）显示因其具有柔性可弯曲、自发光、广视角等优点成为目前市场上的主流显示产品，被誉为继LCD（液晶）显示后最有发展潜力的显示技术。OLED发光器件采用三明治结构，当两端通入电流后，电子和空穴被注入到有机发光层中，不同的有机发光材料在激子激发下发出不同颜色的光，从而应用于各种显示产品。
随着人们生活水平的提高，电子终端产品对显示面板的分辨率提出了更高的要求，4K、8K概念被相继报道。因此，如何改善现有面板的像素结构成为亟待解决的问题。传统的OLED面板中像素排列方式大多为单基板RGB相继排列，此种方法对掩膜板（mask）以及蒸镀工艺要求较高，提高显示面板分辨率的方法主要是通过改善掩膜板（mask）和蒸镀工艺，但是随着产品对分辨率要求的提高，像素密集度越来越大，掩膜板（mask）与蒸镀工艺遭遇瓶颈，高精度掩膜板（mask）在张网过程中极易破损，而且蒸镀过程中极易发生混色情况。
 技术问题
本发明的目的在于，解决现有的显示面板像素分辨率不能满足用户高端需求的技术问题。
 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：第一基板；以及第二基板，与所述第一基板相对设置；还包括两个像素层，分别为第一像素层及第二像素层；所述第一像素层设于所述第一基板一侧的表面；所述第二像素层设于所述第二基板朝向所述第一像素层一侧的表面。
进一步地，每一像素层包括红色子像素、绿色子像素及蓝色子像素。
进一步地，所述红色子像素为正方形；所述绿色子像素为正方形；以及所述蓝色子像素为矩形。
进一步地，所述红色子像素的边长等同于所述绿色子像素的边长。
进一步地，一像素层内一红色子像素与一绿色子像素的面积之和等同于该像素层内一蓝色子像素的面积；一像素层内一红色子像素与一绿色子像素的面积之和等同于另一像素层内一蓝色子像素的面积。
进一步地，同一像素层的两个以上红色子像素与两个以上绿色子像素设于同一直线上，任一两个相邻的红色子像素之间设有一个绿色子像素；同一像素层的两个以上蓝色子像素设于同一直线上。
进一步地，一像素层的两个相邻的红色子像素及绿色子像素，皆与另一像素层的一蓝色子像素相对设置。
进一步地，所述显示面板还包括：第一透明电极，设于所述第一基板与所述第一像素层之间；以及第二透明电极，设于所述第一像素层远离所述第一透明电极一侧的表面。
进一步地，所述显示面板还包括：第三透明电极层，设于所述第二像素层远离所述第二基板一侧的表面；反射电极，设于所述第二像素层远离所述第三透明电极层一侧的表面；以及反射镜，设于所述第二基板与所述反射电极之间。
为实现上述目的，本发明还提供一种显示装置，包括前文所述的显示面板。
 有益效果
本发明的技术效果在于，提供一种显示面板及显示装置，所述显示面板包括两个像素层，任一像素层上的红色子像素及绿色子像素可与同一像素层或另一像素层的蓝色子像素形成像素单元，改善像素单元的排列方式，增加像素单元的数量，提高单位面积内的像素密度，明显提高显示装置的分辨率，本发明所述显示装置的最高分辨率可达现有技术的单基板显示装置的分辨率的两倍。
 附图说明
图1为本发明实施例所述显示面板的结构示意图；
图2为本发明实施例所述第一像素层的像素排列图；
图3为本发明实施例所述第二像素层的像素排列图。
部分组件标识如下：
1、第一基板；2、第二基板；3、第一像素层；4、第二像素层；5、第一透明电极；6、第二透明电极；7、第三透明电极；8、反射电极；9、反射镜；10、透射层；
31、第一像素单元；311、第一蓝色子像素；312、第一红色子像素；313、第一绿色子像素；
41、第二像素单元；411、第二蓝色子像素；412、第二红色子像素；413、第二绿色子像素。
 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。
本实施例提供一种显示装置，包括如图1所示的一种显示面板，所示显示面板包括第一基板1、第二基板2、第一像素层3、第二像素层4、第一透明电极5、第二透明电极6、第三透明电极7、反射电极8、反射镜9及透射层10。
第一基板1与第二基板2相对设置，第一基板1与第二基板2相同，优选为TFT基板，给整个显示面板提供电路支持。
第一透明电极5设于第一基板1的上表面，透明电极（transparent conductive film， TCF）又称透明导电膜，目前主要应用为ITO膜，即为氧化铟锡( indium tin oxide)。
第一像素层3设于第一透明电极5的上表面，第一像素层3包括两个以上第一像素单元31（参见图2），每一第一像素单元31包括第一蓝色子像素311、第一红色子像素312及第一绿色子像素313。第一像素层3上的第一像素单元31越多，显示装置的分辨率就越高。
如图2所示，第一蓝色子像素311为矩形，第一红色子像素312为正方形，第一绿色子像素313为正方形，第一红色子像素312的边长等同于第一绿色子像素313的边长，第一红色子像素312的面积与第一绿色子像素313的面积之和等同于第一蓝色子像素311的面积，由于各子像素之间存在间隙，故而，第一蓝色子像素311的短边长小于第一红色子像素312的边长或第一绿色子像素313的边长。
第一像素层3的两个以上第一红色子像素312与第一绿色子像素313设于同一直线上，任意两个第一红色子像素312之间设有一个第一绿色子像素313。第一像素层3的两个以上第一蓝色子像素313设于同一直线上。图2中的第一红色子像素312及第一绿色子像素313所在直线与第一蓝色子像素311所在直线相对设置且间隔设置，使得第一红色子像素312及第一绿色子像素313既可与其左边的第一蓝色子像素311构成第一像素单元31，又可与其右边的第一蓝色子像素311构成第一像素单元31，增加第一像素层3上第一像素单元31的数量，进一步可提高显示装置的分辨率。
第二透明电极6设于第一像素层3的上表面，透明电极（transparent conductive film， TCF）又称透明导电膜，目前主要应用为ITO膜，即为氧化铟锡( indium tin oxide)。
在第一透明电极5及第二透明电极6的作用下，第一像素层3发光，如图1所示，一部分光线向下发射，形成第一光束，另一部分光线向上发射，形成第二光束。所述第一光束向下出射，从第一基板1的底部出射，所述第二光束向上出射，穿过第三透明电极7、第二像素层4后被反射镜9向下反射，穿过第二像素层4、第三透明电极7、透射层10、第二透明电极6、第一像素层3及第一透明电极5，从第一基板1的底部出射。
反射镜9设于第二基板2的下表面，用以反射光线，将向上的光束向下反射，使得所有光束从第一基板1的底部出射。反射镜9为布拉格反射镜，布拉格反射镜（也称为分布布拉格反射器）是一种反射镜结构，包含了两种光学材料组成的可调节的多层结构。最常用的是四分之一反射镜，其中每一层的厚度都对应四分之一的波长。后面的条件适用于正入射的情况，如果反射镜用于较大角度的入射时，则相对的需要层厚更大。在两种材料的每个界面处都发生菲涅尔反射。在工作波长时，两个相邻界面处反射光的光程差为半个波长，另外，界面处的反射系数的符号也会发生改变。因此，在界面处的所有反射光发生相消干涉，得到很强的反射。反射率是由材料的层数和材料之间的折射率差决定的。反射带宽则主要由折射率差决定。布拉格定律是假设入射波从晶体中的平行原子平面作镜面反射，每个平面反射很少一部分辐射，就像一个轻微镀银的镜子一样。在这种类似镜子的镜面反射中，其反射角等于入射角。当来自平行原子平面的反射发生相长干涉时，就得出衍射束。
反射电极8设于反射镜9的下表面，可使得第二像素层4发光，并使得发出的第二光束向下出射，使得所有光束从第一基板1的底部出射。
第二像素层4设于反射电极8的下表面，第二像素层4包括两个以上第二像素单元41（参见图3），每一第二像素单元41包括第二蓝色子像素411、第二红色子像素412及第二绿色子像素413。第二像素层4上的第二像素单元41越多，显示装置的分辨率就越高。
如图3所示，第二蓝色子像素411为矩形，第二红色子像素412为正方形，第二绿色子像素413为正方形，第二红色子像素412的边长等同于第二绿色子像素413的边长，第二红色子像素412的面积与第二绿色子像素413的面积之和等同于第二蓝色子像素411的面积，由于各子像素之间存在间隙，故而，第二蓝色子像素411的短边长小于第二红色子像素412的边长或第二绿色子像素413的边长。
第二像素层4的两个以上第二红色子像素412与第二绿色子像素413设于同一直线上，任意两个第二红色子像素412之间设有一个第二绿色子像素413。第二像素层4的两个以上第二蓝色子像素413设于同一直线上。图3中的第二红色子像素412及第二绿色子像素413所在直线与第二蓝色子像素411所在直线相对设置且间隔设置，使得第二红色子像素412及第二绿色子像素413既可与其左边的第二蓝色子像素411构成第二像素单元41，又可与其右边的第二蓝色子像素411构成第二像素单元41，增加第二像素层4上第二像素单元41的数量，进一步可提高显示装置的分辨率。
第二像素层4与第一像素层3相对设置，第一像素层3上的第一红色子像素312及第一绿色子像素313与第二像素层4上的第二蓝色子像素411相对设置，第二像素层4上的第二蓝色子像素411的面积等同于第一像素层3上的第一红色子像素312的面积及第一绿色子像素313的面积之和，即第一像素层3上的第一红色子像素312及第一绿色子像素313可与第二像素层4上的第二蓝色子像素411构成新的像素单元。本实施例所述的双层像素层，使得显示面板的有效像素密度比单像素层显示面板的有效像素密度高一倍，理论上可以使得显示装置的分辨率提高一倍。
第二像素层4上的第二红色子像素412及第二绿色子像素413与第一像素层3上的第一蓝色子像素311相对设置，第一像素层3上的第一蓝色子像素311的面积等同于第二像素层4上的第二红色子像素412的面积及第二绿色子像素413的面积之和，即第二像素层4上的第二红色子像素412及第二绿色子像素413可与第一像素层3上的第一蓝色子像素311构成新的像素单元。本实施例所述的双层像素层，使得显示面板的有效像素密度比单像素层显示面板的有效像素密度高一倍，理论上可以使得显示装置的分辨率提高一倍。
第三透明电极7设于第二像素层4的下表面，透明电极（transparent conductive film， TCF）又称透明导电膜，目前主要应用为ITO膜，即为氧化铟锡( indium tin oxide)。
在第三透明电极7及反射电极8的作用下，第二像素层4发光，如图1所示，一部分光线向下发射，形成第三光束，另一部分光线向上发射，形成第四光束。所述第三光束穿过第二像素层4、第三透明电极7、第二透明电极6、第一像素层3及第一透明电极5，从第一基板1的底部出射。所述第一光束被反射镜9向下反射，再穿过第二像素层4、第三透明电极7、透射层10、第二透明电极6、第一像素层3及第一透明电极5，从第一基板1的底部出射。
第一像素层3发光形成第一光束及第二光束，第二像素层发光形成第三光束及第四光束，都从第一基板1的底部出射，进一步增强显示面板的亮度。
理论上，采用双像素层可以使得显示面板的亮度和分辨率，相对于现有的单像素层显示面板都提升一倍，但是由于光束传播过程中，受到各透明层的透光率的限制，以及光线因折射导致损耗，实际上，双像素层显示面板的亮度及分辨率，相对于现有的单像素层显示面板，可以提升30%~60%。
透射层10设于第二透明电极6及第三透明电极7之间，透射层10的材质为高透射率材料，其作用为一方面增加显示面板的出光量，另一方面对第一基板1及第二基板2起到保护的作用，使得两个基板贴合得更加严密。
本实施例所述显示面板还包括多个有机层，分别为空穴注入层、空穴传输层、电子传输层、电子注入层等，在此不作具体阐述。
本实施例所述显示装置的技术效果在于，所述显示装置包括显示面板，所述显示面板包括两个像素层，任一像素层上的红色子像素及绿色子像素可与同一像素层或另一像素层的蓝色子像素形成像素单元，改善像素单元的排列方式，增加像素单元的数量，提高单位面积内的像素密度，明显提高显示装置的分辨率。同时，本实施例所述显示面板无需增加掩膜板及蒸镀工艺，提高显示装置的制备效率。
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：
    第一基板；以及
    第二基板，与所述第一基板相对设置；
    还包括两个像素层，分别为第一像素层及第二像素层；
    所述第一像素层设于所述第一基板一侧的表面；
    所述第二像素层设于所述第二基板朝向所述第一像素层一侧的表面。
  2. 如权利要求1所述的显示面板，其中，
    每一像素层包括红色子像素、绿色子像素及蓝色子像素。
  3. 如权利要求2所述的显示面板，其中，
    所述红色子像素为正方形；
    所述绿色子像素为正方形；以及
    所述蓝色子像素为矩形。
  4. 如权利要求2所述的显示面板，其中，
    所述红色子像素的边长等同于所述绿色子像素的边长。
  5. 如权利要求2所述的显示面板，其中，
    一像素层内一红色子像素与一绿色子像素的面积之和等同于该像素层内一蓝色子像素的面积；
    一像素层内一红色子像素与一绿色子像素的面积之和等同于另一像素层内一蓝色子像素的面积。
  6. 如权利要求1所述的显示面板，其中，
    同一像素层的两个以上红色子像素与两个以上绿色子像素设于同一直线上，任一两个相邻的红色子像素之间设有一个绿色子像素；
    同一像素层的两个以上蓝色子像素设于同一直线上。
  7. 如权利要求2所述的显示面板，其中，
    一像素层的两个相邻的红色子像素及绿色子像素，皆与另一像素层的一蓝色子像素相对设置。
  8. 如权利要求1所述的显示面板，其还包括：
    第一透明电极，设于所述第一基板与所述第一像素层之间；以及
    第二透明电极，设于所述第一像素层远离所述第一透明电极一侧的表面。
  9. 如权利要求1所述的显示面板，其还包括：
    第三透明电极层，设于所述第二像素层远离所述第二基板一侧的表面；
    反射电极，设于所述第二像素层远离所述第三透明电极层一侧的表面；以及
    反射镜，设于所述第二基板与所述反射电极之间。
  10. 一种显示装置，包括如权利要求1所述的显示面板。
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