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WO2020147184A1 - 一种双面显示面板及其显示装置 - Google Patents

一种双面显示面板及其显示装置 Download PDF

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Publication number
WO2020147184A1
WO2020147184A1 PCT/CN2019/077998 CN2019077998W WO2020147184A1 WO 2020147184 A1 WO2020147184 A1 WO 2020147184A1 CN 2019077998 W CN2019077998 W CN 2019077998W WO 2020147184 A1 WO2020147184 A1 WO 2020147184A1
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WO
WIPO (PCT)
Prior art keywords
electrode
light
emitting layer
double
display panel
Prior art date
Application number
PCT/CN2019/077998
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English (en)
French (fr)
Inventor
陈江川
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Publication of WO2020147184A1 publication Critical patent/WO2020147184A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • 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
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H10K59/80516—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
    • 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
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80522—Cathodes combined with auxiliary electrodes

Definitions

  • the present invention relates to the field of display technology, in particular to a double-sided display panel and a display device thereof.
  • the present invention provides a double-sided display panel and a display device thereof, which can achieve the effect of displaying the same screen on both sides without overlapping two panels, reduce the overall thickness of the display, and increase the mass production of double-sided display products. feasibility.
  • an embodiment of the present invention provides a double-sided display panel, which includes a first electrode, a first light-emitting layer, a second electrode, a second light-emitting layer, and a third electrode that are sequentially stacked from bottom to top.
  • the cathode of the first light emitting diode in the first light emitting layer is electrically connected to the first electrode; the second electrode is electrically connected to the anode of the first light emitting diode in the first light emitting layer; the second light emitting diode in the second light emitting layer
  • the anode is electrically connected to the second electrode; the third electrode is electrically connected to the cathode of the second light-emitting diode of the second light-emitting layer;
  • the first electrode, the first light-emitting layer and the second electrode are connected to the drive circuit to achieve all
  • This arrangement does not require overlapping of two panels, realizes the effect of displaying the same picture on both sides, and reduces the overall thickness of the display.
  • the third electrode is electrically connected to the first electrode, the electrically connected first electrode and the third electrode are connected to an output terminal of a driving circuit, and the second electrode is connected to the driving circuit The other output terminal of, so as to realize the use of the same drive circuit for driving.
  • the driving circuit is an AC driving circuit, and the first light-emitting layer and the second light-emitting layer emit light simultaneously according to the conversion frequency of the AC driving circuit. In this way, there is no need to convert alternating current to direct current for use, and direct connection to use of alternating current is realized, which is more energy-saving.
  • the second electrode is the anode of the first light-emitting layer, and the first electrode It is the cathode of the first light-emitting layer, and the first light-emitting layer emits light.
  • the display screen can be seen from the front of the first light-emitting layer, and the second light-emitting diode of the second light-emitting layer on the back is in the off state and does not emit light, so there is no screen on the back;
  • the driving circuit connected to the second electrode is under negative voltage
  • the third electrode is the anode of the second light-emitting layer
  • the second electrode is the cathode of the second light-emitting layer
  • the second light-emitting layer conducts light
  • the back of the second light-emitting layer The first light-emitting diode of the first light-emitting layer is reversed and is in the off state.
  • the second electrode is a metal electrode
  • the metal electrode can reflect light from the first light-emitting layer and the second light-emitting layer.
  • the first electrode and the third electrode are both transparent electrodes.
  • the transparent electrode can effectively transmit light to prevent shading from causing low display brightness.
  • an upper polarizer is provided on the side of the third electrode away from the second electrode.
  • a lower polarizer is provided on the side of the first electrode away from the second electrode.
  • an upper color filter is provided on the side of the third electrode away from the second electrode.
  • a lower color filter is provided on the side of the first electrode away from the second electrode.
  • a display device including the double-sided display panel described in any one of the above.
  • the technical effect of the present invention is to provide a double-sided display panel and a display device thereof.
  • two first light-emitting layers and second light-emitting layers arranged opposite to each other there is no need for two panels to be overlapped to achieve the same double-sided display.
  • the screen effect reduces the overall thickness of the display.
  • there is no need to convert AC power to DC power for utilization which enables direct connection and utilization of AC power, which is more energy-efficient, thereby improving the feasibility of mass production of double-sided display products.
  • FIG. 1 is a schematic diagram of the structure of a double-sided display panel according to the first embodiment of the present invention
  • FIG. 2 is a schematic diagram of a pixel circuit structure of a double-sided display panel according to a second embodiment of the present invention
  • FIG. 3 is a schematic diagram of the structure of a double-sided display panel according to a third embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a double-sided display panel according to the first embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a double-sided display panel according to a third embodiment of the present invention.
  • an embodiment of the present invention provides a double-sided display panel, which includes a first electrode 1, a first light-emitting layer 2, a second electrode 3, and a second light-emitting layer 4 that are sequentially stacked from bottom to top. And the third electrode 5.
  • the cathode of the first light emitting diode 21 in the first light emitting layer 2 is electrically connected to the first electrode 1; the second electrode 3 is electrically connected to the anode of the first light emitting diode 21 of the first light emitting layer 2; and the second light emitting layer
  • the anode of the second light emitting diode 41 in 4 is electrically connected to the second electrode 3; the third electrode 5 is electrically connected to the cathode of the second light emitting diode 41 of the second light emitting layer 4;
  • the first electrode 1, the first The light-emitting layer 2 and the second electrode 3 are connected to the driving circuit to realize the first light-emitting layer 2 to emit light; the second electrode 3, the second light-emitting layer 4 and the third electrode 5 are connected to the driving circuit to realize the second The light emitting layer 4 emits light.
  • This arrangement does not require overlapping of two panels, realizes the effect of displaying the same picture on both sides, and reduces the overall thickness of the display. Please refer to the arrow direction shown in FIG. 1 for the direction of light emitted by the two first light-emitting layer 2 and the second light-emitting layer 4 which are arranged opposite to each other.
  • the third electrode 5 is electrically connected to the first electrode 1, wherein the electrically connected first electrode 1 and the third electrode 5 are connected to an output terminal of a driving circuit, and the second electrode 3 is connected to the The other output terminal of the driving circuit, so as to realize the use of the same driving circuit for driving.
  • the third electrode 5 is electrically connected to the first electrode 1 by welding, or through an opening penetrating through the second electrode 3. The opening is located at the gap between the first electrode 1, the second electrode 3, and the third electrode 5 after patterning.
  • the patterning method includes a high-precision metal mask (fine metal mask). , FMM) evaporation process, printing or transfer and other methods.
  • the driving circuit is an AC driving circuit, and the first light-emitting layer 2 and the second light-emitting layer 4 emit light simultaneously according to the conversion frequency of the AC driving circuit. In this way, there is no need to convert alternating current to direct current for use, and direct connection to use of alternating current is realized, which is more energy-saving.
  • the second electrode 3 is a metal electrode, and the metal electrode can reflect light from the first light-emitting layer 2 and the second light-emitting layer 4.
  • the first electrode 1 and the third electrode 5 are both transparent electrodes.
  • the transparent electrode can effectively transmit light to prevent shading from causing low display brightness.
  • FIG. 2 is a schematic diagram of a pixel circuit structure of a double-sided display panel, which includes a first connection terminal 10, a second connection terminal 20, and a third connection terminal 30.
  • the first connection terminal 10 is connected to the ground voltage (Vss) and connected to the second electrode 3;
  • the second connection terminal 20 is connected to the power supply voltage (Voltage Drain Drain, Vdd), and the first connection terminal 10 and the second connection terminal 20 are connected
  • the first light-emitting layer 2 and the second light-emitting layer 4 and the first connecting terminal 10 connects the anode of the first light-emitting diode 21 of the first light-emitting layer 2 and the second light-emitting diode 41 of the second light-emitting layer 4 Anode;
  • the third connection terminal 30 is connected to external input data for controlling the second light-emitting layer 4 and the first light-emitting layer 2.
  • the on-drive circuit is an AC drive circuit
  • the first light-emitting layer and the second light-emitting layer emit light simultaneously according to the conversion frequency of the AC drive circuit.
  • the inversion frequency of the AC drive circuit of the drive circuit and the picture refresh rate reach a certain level, the effect that the front and back sides of the display panel can display pictures at the same time can be achieved without being noticed by human eyes.
  • FIG. 3 where an upper polarizer 6 is provided on the side of the third electrode 5 away from the second electrode 3; and an upper polarizer 6 is provided on the side of the first electrode 1 away from the second electrode 3.
  • an upper color filter 8 is provided on the side of the third electrode 5 away from the second electrode 3; on the side of the first electrode 1 away from the second electrode 3 There is a lower color filter 9 on the side, so as to achieve the effect of displaying the same picture on both sides at the same time.
  • the upper color filter 8 and the lower color filter 9 can also have a polarizing function, so that the upper polarizer 6 and the lower polarizer 7 do not need to be separately provided.
  • a display device including the double-sided display panel described in any one of the above.
  • the technical effect of the present invention is to provide a double-sided display panel and a display device thereof.
  • two first light-emitting layers and second light-emitting layers arranged opposite to each other there is no need for two panels to be overlapped to achieve the same double-sided display.
  • the screen effect reduces the overall thickness of the display.
  • there is no need to convert AC power to DC power for utilization which enables direct connection and utilization of AC power, which is more energy-efficient, thereby improving the feasibility of mass production of double-sided display products.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本发明提供一种双面显示面板及其显示装置。双面显示面板包括从下至上依次层叠的第一电极、第一发光层、第二电极、第二发光层和第三电极。所述第一电极、第一发光层和第二电极接通驱动电路可实现所述第一发光层发光；所述第二电极、第二发光层和第三电极接通驱动电路可实现所述第二发光层发光。显示装置包括上述双面显示面板。通过两个背向设置的第二发光层和第一发光层无需2片面板搭接，实现双面显示相同画面的效果，降低了显示器的整体厚度。实现了直接利用交流电，无需通过转化为直流电进行利用，从而更加节能，提高双面显示产品量产可行性。

Description

一种双面显示面板及其显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种双面显示面板及其显示装置。
 背景技术
随着显示技术的进步，大众审美的变化，窄边框和无边框越来越受到重视。为了保证尽量减少非显示屏的占比，出现了双面显示OLED的设计。
针对目前双面显示OLED产品，大多是由2片面板正反搭接而产生双面显示效果。此方式不仅难以降低显示器的整体厚度，而且由于为拼接而成，因此存在不良率极高，加工难度大等问题，难以实现量产。
 技术问题
基于此，本发明提供一种双面显示面板及其显示装置，在无需2片面板搭接的情况下，实现双面显示相同画面的效果，降低显示器的整体厚度，提高双面显示产品量产可行性。
 技术解决方案
为了解决上述问题，本发明一实施例中提供一种双面显示面板，包括从下至上依次层叠设置的第一电极、第一发光层、第二电极、第二发光层和第三电极。其中第一发光层内的第一发光二极管的负极电连接所述第一电极；第二电极电连接所述第一发光层的第一发光二极管的正极；第二发光层内的第二发光二极管的正极电连接所述第二电极；第三电极电连接所述第二发光层的第二发光二极管的负极；所述第一电极、第一发光层和第二电极接通驱动电路可实现所述第一发光层发光；所述第二电极、第二发光层和第三电极接通驱动电路可实现所述第二发光层发光。这样设置无需2片面板搭接，实现双面显示相同画面的效果，降低了显示器的整体厚度。
进一步的，其中所述第三电极电连接所述第一电极，其中电连接后的所述第一电极和第三电极连接一驱动电路的一输出端，所述第二电极连接所述驱动电路的另一输出端，从而实现使用同一驱动电路进行驱动。
进一步的，其中所述驱动电路为交流驱动电路，所述第一发光层和第二发光层根据所述交流驱动电路的变换频率同时发光。这样设置无需通过将交流电转化为直流电进行利用，实现了直接连接利用交流电，从而更加节能。
由于第一发光层的第一发光二极管与第二发光层的第二发光二极管反置，当与第二电极连接的驱动电路为正压时，第二电极为第一发光层阳极，第一电极为第一发光层阴极，第一发光层发光，此时从第一发光层正面能够看见显示画面，而背面的第二发光层的第二发光二极管为截至状态，不发光，因此背面无画面；反之，当与第二电极连接的驱动电路为负压时，第三电极为第二发光层阳极，第二电极为第二发光层阴极，第二发光层导通发光，而第二发光层背面的第一发光层的第一发光二极管反置，处于截至状态，此时第二发光层背面无画面。当驱动电路的交流驱动电路的反转频率与画面刷新率达到一定程度时，可以在人眼无法察觉的情况下，达成正反面均可同时显示画面的效果。
进一步的，其中所述第二电极为金属电极，所述金属电极可反射来自所述第一发光层和第二发光层的光。
进一步的，其中所述第一电极和所述第三电极均为透明电极。透明电极能有效透光，防止遮光造成显示亮度偏低。
进一步的，其中在所述第三电极远离所述第二电极的一侧设有上偏光片。
进一步的，其中在所述第一电极远离所述第二电极的一侧设有下偏光片。
进一步的，其中在所述第三电极远离所述第二电极的一侧设有上彩色滤光片。
进一步的，其中在所述第一电极远离所述第二电极的一侧设有下彩色滤光片。
本发明的又一实施例中提供一种显示装置，包括上述任一项所述的双面显示面板。
 有益效果
本发明的技术效果在于，提供一种双面显示面板及其显示装置，通过两个背向设置的第一发光层和第二发光层，一方面无需2片面板搭接，实现双面显示相同画面的效果，降低显示器的整体厚度，另一方面无需通过将交流电转化为直流电进行利用，实现了直接连接利用交流电，从而更加节能，从而提高双面显示产品量产可行性。
 附图说明
图1为本发明第一实施方式的双面显示面板的结构示意图；
图2为本发明第二实施方式的双面显示面板的像素电路结构示意图；
图3为本发明第三实施方式的双面显示面板的结构示意图；
图4为本发明第一实施方式的双面显示面板的结构示意图；
图5为本发明第三实施方式的双面显示面板的结构示意图。
图中部件标识如下：
1第一电极、2第一发光层、3第二电极、4第二发光层、5第三电极、
6上偏光片、7下偏光片、8上彩色滤光片、9下彩色滤光片，
10第一连接端、20第二连接端、30第三连接端，
21第一发光二极管、41第二发光二极管。
 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。
请参阅图1所示，本发明一实施例中提供一种双面显示面板，包括从下至上依次层叠设置的第一电极1、第一发光层2、第二电极3、第二发光层4和第三电极5。其中第一发光层2内的第一发光二极管21的负极电连接所述第一电极1；第二电极3电连接所述第一发光层2的第一发光二极管21的正极；第二发光层4内的第二发光二极管41的正极电连接所述第二电极3；第三电极5电连接所述第二发光层4的第二发光二极管41的负极；所述第一电极1、第一发光层2和第二电极3接通驱动电路可实现所述第一发光层2发光；所述第二电极3、第二发光层4和第三电极5接通驱动电路可实现所述第二发光层4发光。这样设置无需2片面板搭接，实现双面显示相同画面的效果，降低了显示器的整体厚度。其中两个背向设置的第一发光层2和第二发光层4的发射光线方向请参阅图1所示的箭头方向。
其中所述第三电极5电连接所述第一电极1，其中电连接后的所述第一电极1和第三电极5连接一驱动电路的一输出端，所述第二电极3连接所述驱动电路的另一输出端，从而实现使用同一驱动电路进行驱动。其中所述第三电极5电连接所述第一电极1的方式可以为通过焊接方式连接，也可以通过一贯穿所述第二电极3的开孔连接。所述开孔位于所述第一电极1、所述第二电极3、所述第三电极5进行图形化处理后的间隙处，进行图形化处理的方式包括高精度金属掩模板（fine metal mask，FMM）蒸镀工艺、打印或转印等方式。
其中所述驱动电路为交流驱动电路，所述第一发光层2和第二发光层4根据所述交流驱动电路的变换频率同时发光。这样设置无需通过将交流电转化为直流电进行利用，实现了直接连接利用交流电，从而更加节能。
其中所述第二电极3为金属电极，所述金属电极可反射来自所述第一发光层2和第二发光层4的光。
其中所述第一电极1和所述第三电极5均为透明电极。透明电极能有效透光，防止遮光造成显示亮度偏低。
请参阅图2所示，为双面显示面板的像素电路结构示意图，包括第一连接端10、第二连接端20、第三连接端30。第一连接端10连接接地电压（Vss）并连通所述第二电极3；第二连接端20连接电源电压（Voltage Drain Drain，Vdd），第一连接端10与第二连接端20之间连接所述第一发光层2和第二发光层4，第一连接端10连接所述第一发光层2的第一发光二极管21的正极和所述第二发光层4的第二发光二极管41的正极；第三连接端30连接外部输入数据，用于控制所述第二发光层4和第一发光层2。
由于第一发光层2的第一发光二极管21与第二发光层4的第二发光二极管41与所述第二电极3的连接端均为正极，当接通驱动电路为交流驱动电路时，所述第一发光层和第二发光层根据所述交流驱动电路的变换频率同时发光。当驱动电路的交流驱动电路的反转频率与画面刷新率达到一定程度时，可以在人眼无法察觉的情况下，达成显示面板正反面均可同时显示画面的效果。
请参阅图3所示，其中在所述第三电极5远离所述第二电极3的一侧设有上偏光片6；在所述第一电极1远离所述第二电极3的一侧设有下偏光片7。
请参阅图4所示，其中在所述第三电极5远离所述第二电极3的一侧设有上彩色滤光片8；在所述第一电极1远离所述第二电极3的一侧设有下彩色滤光片9，从而实现双面同时显示相同画面的效果。
请参阅图5所示，上彩色滤光片8和下彩色滤光片9也可具有偏光的作用，从而不需单独设置上偏光片6和下偏光片7。
本发明的又一实施例中提供一种显示装置，包括上述任一项所述的双面显示面板。
本发明的技术效果在于，提供一种双面显示面板及其显示装置，通过两个背向设置的第一发光层和第二发光层，一方面无需2片面板搭接，实现双面显示相同画面的效果，降低显示器的整体厚度，另一方面无需通过将交流电转化为直流电进行利用，实现了直接连接利用交流电，从而更加节能，从而提高双面显示产品量产可行性。
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. 一种双面显示面板，其中，包括从下至上依次层叠设置的
    一第一电极；
    一第一发光层，其内的第一发光二极管的负极电连接所述第一电极；
    一第二电极，电连接所述第一发光层的第一发光二极管的正极；
    一第二发光层，其内的第二发光二极管的正极电连接所述第二电极；
    一第三电极，电连接所述第二发光层的第二发光二极管的负极；
    其中，所述第一电极、第一发光层和第二电极通电后能够实现所述第一发光层发光；所述第二电极、第二发光层和第三电极通电后能够实现所述第二发光层发光。
  2. 根据权利要求1所述的双面显示面板，其中，所述第三电极电连接所述第一电极，其中电连接后的所述第一电极和第三电极连接一驱动电路的一输出端，所述第二电极连接所述驱动电路的另一输出端。
  3. 根据权利要求2所述的双面显示面板，其中，所述驱动电路为交流驱动电路，所述第一发光层和第二发光层根据所述交流驱动电路的变换频率同时发光。
  4. 根据权利要求1所述的双面显示面板，其中，所述第二电极为金属电极，所述金属电极可反射来自所述第一发光层和第二发光层的光。
  5. 根据权利要求1所述的双面显示面板，其中，所述第一电极和所述第三电极均为透明电极。
  6. 根据权利要求1所述的双面显示面板，其中，在所述第三电极远离所述第二电极的一侧设有上偏光片。
  7. 根据权利要求1所述的双面显示面板，其中，在所述第一电极远离所述第二电极的一侧设有下偏光片。
  8. 根据权利要求1所述的双面显示面板，其中，在所述第三电极远离所述第二电极的一侧设有上彩色滤光片。
  9. 根据权利要求1所述的双面显示面板，其中，在所述第一电极远离所述第二电极的一侧设有下彩色滤光片。
  10. 一种显示装置，其中，包括如权利要求1所述的双面显示面板。
PCT/CN2019/077998 2019-01-18 2019-03-13 一种双面显示面板及其显示装置 WO2020147184A1 (zh)

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