WO2019192399A1 - 显示基板及其制备方法、显示面板及装置 - Google Patents

显示基板及其制备方法、显示面板及装置 Download PDF

Info

Publication number
WO2019192399A1
WO2019192399A1 PCT/CN2019/080364 CN2019080364W WO2019192399A1 WO 2019192399 A1 WO2019192399 A1 WO 2019192399A1 CN 2019080364 W CN2019080364 W CN 2019080364W WO 2019192399 A1 WO2019192399 A1 WO 2019192399A1
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
emitting structure
pixel circuit
display
substrate
Prior art date
Application number
PCT/CN2019/080364
Other languages
English (en)
French (fr)
Inventor
杨涛
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/620,120 priority Critical patent/US11024225B2/en
Publication of WO2019192399A1 publication Critical patent/WO2019192399A1/zh

Links

Images

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]
    • 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
    • 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
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • H10K50/818—Reflective anodes, e.g. ITO combined with thick metallic layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/124—Insulating layers formed between TFT elements and OLED elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • 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
    • H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display
    • 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
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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]
    • G09G3/3275—Details of drivers for data electrodes
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/1201—Manufacture or treatment

Definitions

  • the present disclosure relates to a display substrate, a method of fabricating the same, a display panel, and an apparatus.
  • organic light-emitting diode (English: Organic Light-Emitting Diode, OLED for short) is more and more widely used.
  • the OLED display substrate in the OLED display device includes a substrate substrate, and a plurality of pixel units disposed on the substrate substrate, the plurality of pixel units being capable of emitting light to one side of the substrate substrate such that an image is displayed on one side of the OLED display substrate .
  • the present disclosure provides a display substrate, a preparation method thereof, a display panel and a device, and the technical solution is as follows:
  • a display substrate comprising: a substrate substrate and a pixel unit,
  • the substrate substrate is transparent to light
  • the pixel unit includes: a first light emitting structure and a second light emitting structure arranged in a direction away from the substrate; the first light emitting structure is configured to be close to the Light emitting in a direction of the base substrate, the second light emitting structure being configured to emit light in a direction away from the base substrate;
  • An orthographic projection area of the first light emitting structure on the base substrate and an orthographic projection area of the second light emitting structure on the base substrate at least partially overlap.
  • the orthographic projection area of the first light emitting structure on the base substrate and the orthographic projection area of the second light emitting structure on the base substrate all overlap.
  • the first light emitting structure includes: a first bottom electrode, a first light emitting layer, and a first top electrode arranged in a direction away from the substrate
  • the second light emitting structure includes: a second bottom electrode, a second light emitting layer, and a second top electrode, which are sequentially arranged in a direction of the base substrate
  • the first bottom electrode and the second top electrode are transparent, and the material of at least one of the first top electrode and the second bottom electrode comprises a light shielding material.
  • the shading material comprises a reflective material.
  • the at least one electrode satisfies at least one of the following:
  • the at least one electrode includes the first top electrode, and the first top electrode is reflective near a surface of the base substrate;
  • the at least one electrode includes the second bottom electrode, and the second bottom electrode is reflective away from a surface of the base substrate.
  • the pixel unit further includes: a first pixel circuit and a second pixel circuit,
  • the first pixel circuit is electrically connected to the first light emitting structure; the second pixel circuit is electrically connected to the second light emitting structure.
  • the first pixel circuit and the second pixel circuit are both located between the base substrate and the first light emitting structure.
  • the first light emitting structure includes a first bottom electrode, a first light emitting layer and a first top electrode arranged in a direction away from the substrate.
  • At least a portion of the orthographic projection area of the first luminescent layer on the substrate substrate is located outside the target area, the target area comprising: the first pixel circuit and the second pixel circuit on the substrate The area of the orthographic projection.
  • all of the orthographic projection regions of the first luminescent layer on the substrate are located outside the target region.
  • the pixel unit further includes: a first insulating layer and a second insulating layer,
  • the first insulating layer is located between the pixel circuit layer and the first light emitting structure, the pixel circuit layer includes the first pixel circuit and the second pixel circuit; and the second insulating layer is located in the first Between a light emitting structure and the second light emitting structure;
  • the first pixel circuit is electrically connected to the first light emitting structure through a first via in the first insulating layer, and the second pixel circuit sequentially passes through a second via in the first insulating layer and A third via in the second insulating layer is electrically connected to the second light emitting structure.
  • an orthographic projection area of the edge portion of the first top electrode on the base substrate is outside an orthographic projection area of the first luminescent layer on the base substrate, and the edge portion has Target through hole
  • the second pixel circuit is electrically connected to the second light emitting structure through the second via hole, the target via hole and the third via hole in sequence, and is insulated from the first top electrode.
  • the first light emitting structure further includes: a first defining layer between the first bottom electrode and the first top electrode, and the first defining layer has a first opening, the first a light emitting layer is located in the first opening;
  • the second pixel circuit is electrically connected to the second light emitting structure through the second via hole, the fourth via hole in the first defining layer, the target via hole and the third via hole in sequence.
  • the display substrate further includes: a first data line and a second data line on the base substrate,
  • the first data line is electrically connected to the first pixel circuit
  • the second data line is electrically connected to the second pixel circuit.
  • the first data line and the second data line are both located between the first pixel circuit and the second pixel circuit.
  • the display substrate further includes: a gate line on the base substrate, the gate line being electrically connected to the first pixel circuit and the second pixel circuit.
  • a method of fabricating a display substrate for manufacturing the above display substrate comprising:
  • the pixel unit includes: a first light emitting structure and a second light emitting structure arranged in a direction away from the substrate; the first light emitting structure is configured to emit light in a direction close to the substrate The second light emitting structure is configured to emit light away from the substrate;
  • An orthographic projection area of the first light emitting structure on the base substrate and an orthographic projection area of the second light emitting structure on the base substrate at least partially overlap.
  • a display panel including the display substrate described above.
  • a display device comprising: a display control component, and the display panel;
  • the display panel includes a pixel unit electrically connected to the first light emitting structure and the second light emitting structure of the pixel unit, and configured to control the first light emitting structure and the second light emitting structure At least one of the light emitting structures emits light.
  • the pixel unit further includes: a first pixel circuit and a second pixel circuit
  • the display panel further includes: a first data line and a second data line
  • the display control component is electrically connected to the first light emitting structure through the first data line and the first pixel circuit, and is electrically connected to the second pixel line and the second pixel circuit in sequence
  • the second light emitting structure is described.
  • the display control component includes: two control chips,
  • One of the two control chips is electrically connected to the first light emitting structure, and is configured to control the first light emitting structure to emit light;
  • Another one of the two control chips is electrically coupled to the second light emitting structure and configured to control the second light emitting structure to emit light.
  • FIG. 1 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another display substrate according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of still another display substrate according to an embodiment of the present disclosure.
  • FIG. 4 is a top plan view of a display substrate according to an embodiment of the present disclosure.
  • FIG. 5 is a flowchart of a method for preparing a display substrate according to an embodiment of the present disclosure
  • FIG. 6 is a flow chart of another method for preparing a display substrate according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a preparation process of a display substrate according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a process of preparing another display substrate according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a process of preparing another display substrate according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of a process of preparing another display substrate according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of a process of preparing another display substrate according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another display device according to an embodiment of the present disclosure.
  • FIG. 14 is a flowchart of a method for controlling a display panel according to an embodiment of the present disclosure.
  • the application of the OLED display device is more and more extensive, but the OLED display substrate in the OLED display device can only display an image on one side thereof, and therefore, the display performance of the OLED display device is poor.
  • the OLED display substrate in the OLED display device can only display an image on one side thereof, and therefore, the display performance of the OLED display device is poor.
  • display performance of the OLED display device can be improved.
  • the resolution of the double-sided OLED display substrate is low.
  • FIG. 1 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure.
  • the display substrate 01 includes a base substrate 011 and a pixel unit 012.
  • the substrate 011 is transparent, for example, the material of the substrate 011 may be a transparent material (such as silicon or silicon carbide).
  • the pixel unit 012 may include first light emitting structures 0121 and second light emitting structures 0122 that are sequentially arranged in a direction X1 away from the substrate 011.
  • the first light emitting structure 0121 is configured to emit light in a direction X2 close to the base substrate 011
  • the second light emitting structure 0122 is configured to emit light in a direction X1 away from the base substrate 011.
  • the orthographic projection area of the first light emitting structure 0121 on the base substrate 011 at least partially overlaps with the orthographic projection area of the second light emitting structure 0122 on the base substrate 011.
  • the display substrate provided by the embodiment of the present disclosure includes a first light emitting structure and a second light emitting structure.
  • the first light emitting structure and the second light emitting structure are capable of emitting light in different directions, thereby enabling the display substrate to realize double-sided display.
  • the orthographic projection areas of the first light emitting structure and the second light emitting structure on the base substrate at least partially overlap, the orthographic projection area of the pixel unit on the base substrate is small, so that the display substrate can include more The pixel unit has a higher resolution of the display substrate.
  • the orthographic projection area of the first light emitting structure 0121 on the base substrate 011 may completely overlap with the orthographic projection area of the second light emitting structure 0122 on the base substrate 011.
  • the orthographic projection area of the pixel unit 012 on the base substrate 011 can be minimized, and the number of the pixel units 012 in the display substrate 01 can be maximized, and the resolution of the display substrate 01 can be improved.
  • the orthographic projection area of the first light emitting structure 0121 on the base substrate 011 may overlap with the orthographic projection area of the second light emitting structure 0122 on the base substrate 011 as an example.
  • the orthographic projection area of the first light emitting structure 0121 on the base substrate 011 may also partially overlap with the orthographic projection area of the second light emitting structure 0122 on the base substrate 011, which is not limited in the embodiment of the present disclosure.
  • the first light emitting structure 0021 may include: sequentially arranged in a direction away from the substrate 011.
  • the second light emitting structure 0122 may include a second bottom electrode 01121, a second light emitting layer 01222, and a second top electrode 01223 which are sequentially arranged in a direction away from the base substrate 011.
  • the materials of the first light-emitting layer 01012 and the second light-emitting layer 01222 may be organic light-emitting materials.
  • the first light-emitting structure 0121 and the second light-emitting structure 0122 may both be organic light-emitting diodes.
  • the materials of the first luminescent layer 01012 and the second luminescent layer 01222 may be inorganic luminescent materials.
  • the first illuminating structure 0121 and the second illuminating structure 0122 may both be light emitting diodes.
  • the material of the first luminescent layer 01212 and the second luminescent layer 01222 may also be other electroluminescent materials (such as quantum dots), which are not limited by the embodiments of the present disclosure.
  • the first bottom electrode 01111 and the second top electrode 01223 are transparent. In this way, the light emitted by the first luminescent layer 01012 can pass through the first bottom electrode 01011 and be transmitted in a direction close to the substrate 011; the light emitted from the second luminescent layer 01222 can pass through the second top electrode 01223, and Transmitted in a direction away from the substrate 011.
  • the first bottom electrode 01111 and the second top electrode 01223 may both be transparent electrodes, such as an indium tin oxide electrode or an aluminum-doped zinc oxide electrode.
  • the first bottom electrode 01111 and the second top electrode 01223 may each be a translucent electrode (such as an electrode formed by doping a metal in the transparent electrode), which is not limited in the embodiment of the present disclosure.
  • At least one of the first top electrode 01213 and the second bottom electrode 01021 is shielded from light (the material of the at least one electrode comprises a light shielding material such as metal).
  • the first top electrode 01113 is shielded from light, and the second bottom electrode 01121 is transparent; or the first top electrode 01113 is transparent, and the second bottom electrode 01121 is shielded from light; or the first top electrode 01213 is shielded from light, and the second bottom electrode is shielded. 01221 shading.
  • the at least one electrode can prevent the light emitted by the first luminescent layer 01012 from being transmitted to the side of the second illuminating structure 0122, and prevent the light emitted by the second luminescent layer 01222 from being transmitted to the side of the first illuminating structure 0121, thereby preventing The mutual influence of light emitted between the first light emitting structure 0121 and the second light emitting structure 0122.
  • the electrode in the embodiment of the present disclosure may achieve the purpose of shading by reflecting light, and the light shielding material may include a reflective material.
  • the first top electrode 01013 and the second bottom electrode 01021 is reflective. It should be noted that when the first top electrode 01013 is reflective, the first surface of the first top electrode 01013 is reflective near the first surface of the substrate 011, and the surface of the first top electrode 01213 other than the first surface may be reflective or The embodiment of the present disclosure does not limit this.
  • the second bottom electrode 01121 is reflective
  • the second surface of the second bottom electrode 01121 is reflective away from the second surface of the base substrate 011
  • the surface of the second bottom electrode 01121 other than the second surface may be reflective or non-reflective
  • the present disclosure does not limit this.
  • the pixel unit may further include: a first pixel circuit 0123 and a second pixel circuit 0124.
  • the pixel circuits (such as the first pixel circuit and the second pixel circuit described above) in the embodiments of the present disclosure may include at least one thin film transistor, or the pixel circuit includes a plurality of thin film transistors and at least one capacitor. Only one thin film transistor in the pixel circuit is shown in FIG.
  • the thin film transistor may include a buffer layer, an active layer, a gate insulating layer, a gate layer, an intermediate insulating layer, and a source and drain layer (including a source and a drain) which are sequentially arranged in a direction away from the substrate 011.
  • the first pixel circuit 0123 is electrically connected to the first light emitting structure 0121, and the first pixel circuit 0123 is electrically connected to the first bottom electrode 01211 in the first light emitting structure 0121; the second pixel circuit 0124 is electrically connected to the second light emitting structure 0122.
  • the second pixel circuit 0124 is electrically connected to the second bottom electrode 01121 of the second light emitting structure 0122.
  • the display panel in which the display substrate 01 is located may further include a display control component. Since the first light emitting structure 0121 and the second light emitting structure 0122 are electrically connected to different pixel circuits, respectively, the display control component may control the first through different pixel circuits.
  • the light emitting structure and the second light emitting structure emit light. In this way, independent control of each of the first light emitting structure 0121 and the second light emitting structure 0122 can be achieved.
  • the first pixel circuit 0123 and the second pixel circuit 0124 may both be located between the base substrate 011 and the first light emitting structure 0121. It should be noted that the first pixel circuit 0123 and the second pixel circuit 0124 may not be located between the base substrate 011 and the first light emitting structure 0121, for example, the first pixel circuit 0123 and the second pixel circuit 0124 are both located in the second light emitting.
  • the structure 0122 is away from the side of the base substrate 01, which is not limited by the embodiment of the present disclosure.
  • At least a portion of the orthographic projection area of the first luminescent layer 01012 in the first luminescent structure 0121 on the substrate 011 may be located outside the target area, the target area including: the first pixel circuit 0123 on the base substrate
  • the orthographic projection area B1 on 011 and the second pixel circuit 0124 are on the front projection area B2 on the base substrate 011.
  • the first pixel circuit 0123 and the second The pixel circuit 0124 does not block the first luminescent layer 01012, and at least part of the light emitted by the first luminescent layer 01012 can be incident on the substrate 011, thereby emitting the display substrate.
  • FIG. 2 a partial orthographic projection area of the first light-emitting layer 01012 on the base substrate 011 is located outside the target area as an example.
  • FIG. 3 is a schematic structural diagram of still another display substrate according to an embodiment of the present disclosure. As shown in FIG. 3, all the orthographic projection areas of the first luminescent layer 01012 on the substrate 011 may be located outside the target area. . At this time, the first pixel circuit 0123 and the second pixel circuit 0124 are not blocked by the first light-emitting layer 01012, and more light emitted by the first light-emitting layer 01012 can be emitted toward the base substrate 011, so that the light is emitted from the side of the base substrate 011. The brightness of the light is higher.
  • the pixel unit may further include: a first insulating layer 0125 and a second insulating layer 0126.
  • the first insulating layer 0125 is located between the pixel circuit layer and the first light emitting structure 0121
  • the pixel circuit layer includes a first pixel circuit 0123 and a second pixel circuit 0124.
  • the second insulating layer 0126 is located between the first light emitting structure 0121 and the second light emitting structure 0122.
  • the first pixel circuit 0123 is electrically connected to the first light emitting structure 0121 through the first via hole C1 in the first insulating layer 0125
  • the second pixel circuit 0126 sequentially passes through the second via hole C2 and the second insulating layer in the first insulating layer 0125.
  • the third via C3 in layer 0126 is electrically coupled to the second light emitting structure 0122.
  • an orthographic projection area of the edge portion of the first top electrode 01013 on the base substrate 011 is located outside the orthographic projection area of the first light emitting layer 01012 on the base substrate 011, the edge The portion may have a target through hole C4.
  • the second pixel circuit 0124 is electrically connected to the second light emitting structure 0122 through the second via hole C2, the target via hole C4, and the third via hole C3, and is insulated from the first top electrode 01213.
  • the orthographic projection area of the edge portion of the second top electrode 01223 on the base substrate 011 may also be located outside the orthographic projection area of the second light emitting layer 01222 on the base substrate 011.
  • the display substrate may include a plurality of pixel units (only one pixel unit is shown in FIG. 2).
  • the first top electrode 01113 of the plurality of pixel units may be electrically connected to each other and may be electrically connected to each other. Alternatively, the first top electrode 01113 of the plurality of pixel units may be spaced apart from each other, which is not limited by the embodiment of the present disclosure.
  • the second top electrodes 01223 of the plurality of pixel units may be electrically connected to each other and may be electrically connected to each other. Alternatively, the second top electrodes 01223 of the plurality of pixel units may be spaced apart from each other, which is not limited in the embodiment of the present disclosure. .
  • the first light emitting structure 0121 may further include: a first defining layer 01214 between the first bottom electrode 01111 and the first top electrode 01213, and the first defining layer 01014 has a first opening, the first light emitting Layer 01012 is located within the first opening.
  • the second pixel circuit 0124 is electrically connected to the second light emitting structure 0122 through the second via hole C2, the fourth via hole C5 in the first defining layer 01013, the target via hole C4, and the third via hole C3.
  • the second light emitting structure 0122 may further include: a second defining layer 01224, and the second light emitting layer 01222 and the second defining layer 01224 may be located between the second bottom electrode 01021 and the second top electrode 01223.
  • the second defining layer 01224 has a second opening, and the second luminescent layer 01222 is located within the second opening.
  • FIGS. 1, 2, and 3 are each a schematic view of a section JJ in FIG.
  • the data lines (such as the first data line 013 and the second data line 014) and the gate line 015 in FIG. 4 are not shown in FIG. 1, FIG. 2, and FIG. 3, and only the pixel unit is shown in FIG.
  • the first pixel circuit 0123 and the second pixel circuit 0124 do not show the first light emitting structure and the second light emitting structure in the pixel unit.
  • the display substrate 01 may further include: a first data line 013 and a second data line 014 on the base substrate 011.
  • the first data line 013 is electrically connected to the first pixel circuit 0123
  • the second data line 014 is electrically connected to the second pixel circuit 0124.
  • the first pixel circuit 0123 and the second pixel circuit 0124 are electrically connected to different data lines, respectively, so that the display control component can facilitate the first light emitting structure and the second light emitting through different data lines and different pixel circuits.
  • the structure is controlled.
  • the first data line 013 and the second data line 014 may be located between the first pixel circuit 0123 and the second pixel circuit 0124.
  • the orthographic projection area of the first luminescent layer 01112 on the base substrate may also be at least partially (eg, all) located outside the orthographic projection area of the first data line 013 and the second data line 014 on the base substrate 011.
  • the first data line 013 and the second data line 014 also have less occlusion of the light emitted by the first light emitting structure.
  • the first data line 013 and the second data line 014 may not be located between the first pixel circuit 0123 and the second pixel circuit 0124.
  • the first data line 013 and the second data line 014 may be located in the entire pixel unit. The two sides or the same side of the disclosure do not limit this.
  • the display substrate 01 may further include: a gate line 015 on the base substrate 011, and the gate line 015 is electrically connected to the first pixel circuit 0123 and the second pixel circuit 0124. It can be seen that the first pixel circuit 0123 and the second pixel circuit 0124 in the pixel unit 012 are electrically connected to the same gate line 015.
  • the display substrate 01 may include m rows and n columns of pixel units 012, m ⁇ 1, n ⁇ 1.
  • the display substrate 01 may further include m gate lines 015, n first data lines 013, and n second data lines 014.
  • the m gate lines 015 may be in one-to-one correspondence with the m rows of pixel cells 012, and each of the gate lines 015 is electrically connected to the first pixel circuit 0123 and the second pixel circuit 0124 in its corresponding row of pixel cells 012.
  • the n first data lines 013 may be in one-to-one correspondence with the n columns of pixel units 012, and each of the first data lines 013 may be electrically connected to the first pixel circuit 0123 of its corresponding column of pixel units 012.
  • the n second data lines 014 may be in one-to-one correspondence with the n columns of pixel units 012, and each of the second data lines 014 may be electrically connected to the second pixel circuit 0124 of its corresponding column of pixel units 012.
  • the display substrate provided by the embodiment of the present disclosure includes a first light emitting structure and a second light emitting structure.
  • the first light emitting structure and the second light emitting structure are capable of emitting light in different directions, thereby enabling the display substrate to realize double-sided display.
  • the orthographic projection areas of the first light emitting structure and the second light emitting structure on the base substrate at least partially overlap, the orthographic projection area of the pixel unit on the base substrate is small, so that the display substrate can include more The pixel unit has a higher resolution of the display substrate.
  • FIG. 5 is a flowchart of a method for preparing a display substrate according to an embodiment of the present disclosure, which may be used to manufacture a display substrate provided by an embodiment of the present disclosure (as shown in FIG. 1, FIG. 2, FIG. 3 or FIG. 4).
  • Display substrate as shown in FIG. 5, the method for preparing the display substrate may include:
  • step 501 a light transmissive substrate is provided.
  • a pixel unit is formed on a base substrate.
  • the pixel unit includes: a first light emitting structure and a second light emitting structure arranged in a direction away from the base substrate; the first light emitting structure is configured to emit light in a direction close to the base substrate, and the second light emitting structure is configured To emit light away from the substrate, the orthographic projection area of the first illumination structure on the substrate substrate and the orthographic projection area of the second illumination structure on the substrate substrate at least partially overlap.
  • the display substrate prepared by the method provided by the embodiment of the present disclosure includes a first light emitting structure and a second light emitting structure.
  • the first light emitting structure and the second light emitting structure are capable of emitting light in different directions, thereby enabling the display substrate to realize double-sided display.
  • the orthographic projection areas of the first light emitting structure and the second light emitting structure on the base substrate at least partially overlap, the orthographic projection area of the pixel unit on the base substrate is small, so that the display substrate can include more The pixel unit has a higher resolution of the display substrate.
  • FIG. 6 is a flowchart of a method for preparing a display substrate according to an embodiment of the present disclosure. As shown in FIG. 6 , the method for preparing the display device may include:
  • step 601 a light transmissive substrate is provided.
  • a transparent substrate can be provided, and the transparent material can be silicon or silicon carbide.
  • step 602 a gate line, a first data line, a second data line, and a pixel circuit layer are formed on the base substrate.
  • the pixel circuit layer formed on the base substrate may be as shown in FIG. 7 (the gate line, the first data line and the second data line are not shown in FIG. 7), and the pixel circuit layer may include the first pixel in the pixel unit Circuit 0123 and second pixel circuit 0124.
  • the gate line may be electrically connected to both the first pixel circuit and the second pixel circuit.
  • the first data line may be electrically connected to the first pixel circuit, and the second data line may be electrically connected to the second pixel.
  • the pixel circuit layer may include a first pixel circuit and a second pixel circuit of the plurality of pixel units.
  • a first insulating layer is formed on the base substrate on which the gate lines, the first data lines, the second data lines, and the pixel circuit layers are formed.
  • an insulating material layer may be formed on the pixel circuit layer, and a first via hole and a second via hole are formed in the insulating material layer to obtain the first insulating layer 0125 in FIG. .
  • the first via hole C1 of the first insulating layer 0125 is connected to the first pixel circuit 0123, and the second via hole C2 is connected to the second pixel circuit 0124.
  • step 604 a first light emitting structure is formed on the base substrate on which the first insulating layer is formed.
  • the first light emitting structure may include: a first bottom electrode, a first light emitting layer, a first top electrode, and a first defining layer.
  • a first bottom electrode may be first formed on the first insulating layer, and the first bottom electrode may be electrically connected to the first pixel circuit through a first via in the first insulating layer.
  • a first defining layer having a first opening and a fourth via is formed on the first bottom electrode.
  • a first light emitting layer may be formed in the first opening, and finally a first top electrode covering the first defining layer and the first light emitting layer and having the target via hole is formed, thereby obtaining a first light emitting structure as shown in FIG. 0121.
  • the target via hole C4 in the first top electrode 01013 communicates with the fourth via hole C5 in the first defining layer 01013, and the fourth via hole C5 in the first defining layer 01013 communicates with the second through hole in the first insulating layer 0125. Hole C2.
  • the first top electrodes of the plurality of pixel units may be connected into a unitary structure, and at this time, the first top of the plurality of pixel units The electrodes can be formed simultaneously.
  • step 605 a second insulating layer is formed on the base substrate on which the first light emitting structure is formed.
  • an insulating material layer may be first formed on the first light emitting structure, and a third via hole may be formed in the insulating material layer to obtain the second insulating layer 0126 in FIG.
  • the second via hole C3 in the first insulating layer 0126 is connected to the target via hole C4 in the first top electrode 01213.
  • step 606 a second light emitting structure is formed on the base substrate on which the second insulating layer is formed.
  • the second light emitting structure may include: a second bottom electrode, a second light emitting layer, a second top electrode, and a second defining layer.
  • a second bottom electrode may be first formed on the second insulating layer, and the second bottom electrode sequentially passes through the second via hole, the fourth via hole, the target via hole, and the third via hole. Connected to the second pixel circuit.
  • a second defining layer having a second opening is formed on the second bottom electrode.
  • a second light emitting layer may be formed in the second opening, and finally a second top electrode covering the second defining layer and the second light emitting layer is formed, thereby obtaining a second light emitting structure 0122 as shown in FIG.
  • the second top electrodes of the plurality of pixel units may be connected into a unitary structure, and at this time, the second top of the plurality of pixel units The electrodes can be formed simultaneously.
  • the display substrate prepared by the method provided by the embodiment of the present disclosure includes a first light emitting structure and a second light emitting structure.
  • the first light emitting structure and the second light emitting structure are capable of emitting light in different directions, thereby enabling the display substrate to realize double-sided display.
  • the orthographic projection areas of the first light emitting structure and the second light emitting structure on the base substrate at least partially overlap, the orthographic projection area of the pixel unit on the base substrate is small, so that the display substrate can include more The pixel unit has a higher resolution of the display substrate.
  • the embodiment of the present disclosure further provides a display panel, which may include a display substrate (such as the display substrate shown in FIG. 1, FIG. 2, FIG. 3 or FIG. 4) provided by the embodiment of the present disclosure.
  • a display substrate such as the display substrate shown in FIG. 1, FIG. 2, FIG. 3 or FIG. 4
  • the display panel may further include a cover plate disposed opposite to the base substrate of the display substrate, and the pixel unit in the display substrate is located between the cover plate and the base substrate.
  • the cover plate is transparent, for example, the cover plate is made of silicon or silicon carbide.
  • FIG. 12 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • the display device may include: a display control component 10 and a display panel. It should be noted that only the display substrate in the display panel is shown in FIG. 12 , and the display substrate shown in FIG. 4 is taken as an example.
  • the display control component 10 is coupled to the first light emitting structure and the second light emitting structure in the pixel unit 012 in the display substrate.
  • the display control assembly 10 can be configured to control illumination of at least one of the first illumination structure and the second illumination structure.
  • the display control component 10 can be configured to control the first and second light emitting structures to emit light, or to control the first light emitting structure to emit light, or to control the second light emitting structure to emit light.
  • the display control component 10 can provide a data signal to the light emitting structure when controlling the illumination of each of the light emitting structures, so that the light emitting structure emits light under the action of the data signal.
  • the data signals provided by the display control component to the first light-emitting structure and the second light-emitting structure may be the same or different, which is not limited by the embodiment of the present disclosure.
  • the display device provided by the embodiment of the present disclosure includes a first light emitting structure and a second light emitting structure.
  • the first light emitting structure and the second light emitting structure are capable of emitting light in different directions, thereby enabling the display substrate to realize double-sided display.
  • the orthographic projection areas of the first light emitting structure and the second light emitting structure on the base substrate at least partially overlap, the orthographic projection area of the pixel unit on the base substrate is small, so that the display substrate can include more The pixel unit has a higher resolution of the display substrate.
  • the pixel unit 012 may further include: a first pixel circuit 0123 and a second pixel circuit 0124.
  • the display control component 10 may be electrically connected to the first light emitting structure through the first pixel circuit 0123, and through the second pixel circuit. 0124 is electrically connected to the second light emitting structure.
  • the display panel further includes: a first data line 013 and a second data line 014, the display control component 10 can be electrically connected to the first pixel circuit 0123 through the first data line 013, and electrically connected to the second data line 014 through the second data line 014 Second pixel circuit 0124.
  • the display control component 10 is electrically connected to the first light emitting structure through the first data line 013 and the first pixel circuit 0123 in turn, and is electrically connected to the second light emitting through the second data line 014 and the second pixel circuit 0124 in sequence. structure.
  • the display control component 10 of Figure 12 can include a control chip (such as the first control chip 101 in Figure 12).
  • the first control chip 101 is electrically connected to all data lines in the display panel, and controls the first light emitting structure and the second light emitting structure in the display panel to emit light through the data lines.
  • the display control component 10 includes a control chip, and the display control component 10 may also include a plurality of control chips, which are not limited in the embodiment of the present disclosure.
  • the display control component 10 includes two control chips, one of the two control chips may be electrically connected to the first light emitting structure in the display panel and configured to control the first light emitting structure to emit light. Another of the two control chips is electrically coupled to the second illumination structure and configured to provide a data signal to the second illumination structure.
  • FIG. 13 is a schematic structural diagram of another display device according to an embodiment of the present disclosure.
  • two control chips in the display control component 10 may be a second control chip 102 and a third control chip, respectively.
  • the second control chip 102 is electrically connected to the first data line 013 in the display panel for controlling the first light emitting structure to emit light through the first data line 013 and the first pixel circuit 0123.
  • the third control chip 103 is electrically connected to the second data line 014 in the display panel for controlling the second light emitting structure to emit light through the second data line 014 and the second pixel circuit 0124.
  • the display device may be any product or component having a display function such as an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a display function such as an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the display device provided by the embodiment of the present disclosure includes a first light emitting structure and a second light emitting structure.
  • the first light emitting structure and the second light emitting structure are capable of emitting light in different directions, thereby enabling the display substrate to realize double-sided display.
  • the orthographic projection areas of the first light emitting structure and the second light emitting structure on the base substrate at least partially overlap, the orthographic projection area of the pixel unit on the base substrate is small, so that the display substrate can include more
  • the pixel unit has a higher resolution of the device where the display substrate is located.
  • FIG. 14 is a flowchart of a method for controlling a display panel according to an embodiment of the present disclosure. The method may be performed by a display control component in the display device for controlling a display panel in the display device, as shown in FIG.
  • the control method of the display panel may include:
  • step 1401 a data signal is provided to at least one of the first light emitting structure and the second light emitting structure to cause the at least one light emitting structure to emit light.
  • the display control component is electrically connected to the first light emitting structure through the first data line and the first pixel circuit in turn, and is electrically connected to the second light emitting structure through the second data line and the second pixel circuit in sequence. Therefore, the display control component may input a data signal to the first data line when the data signal needs to be supplied to the first light emitting structure, so that the data signal is input to the first light emitting structure through the first data line and the first pixel circuit.
  • the display control component may input a data signal to the second data line when the data signal needs to be supplied to the second light emitting structure, so that the data signal is input to the second light emitting structure through the second data line and the second pixel circuit.
  • the display control component in the embodiment of the present disclosure may include one control chip or a plurality of control chips.
  • one control chip needs to provide a data signal to the first light emitting structure according to an image that needs to be displayed on the side of the substrate substrate in the display panel; and another control chip needs to be according to the display panel.
  • the opposite side of the side on which the intermediate substrate is located requires an image to be displayed, and a data signal is supplied to the second light emitting structure.
  • the display device provided by the embodiment of the present disclosure has a single-sided display mode and a double-sided display mode.
  • the display device can display an image on one side in the single-sided display mode, and the display device can display an image on both sides in the double-sided display mode. Also, when an image is displayed on both sides of the display device, both sides of the display device can display the same image or different images.
  • the display control component can display the first illumination in the display device according to the image to be displayed.
  • the structure provides a data signal to cause at least a portion of the first illumination structure in the display device to illuminate.
  • the display control component may provide a data signal to the second light emitting structure in the display device according to the image to be displayed, so that the display device is At least a portion of the second illuminating structure emits light.
  • the display control component can provide a first data signal to the first illumination structure based on the first image to cause at least a portion of the first illumination structure to emit light.
  • the display control component can also provide a second data signal to the second illumination structure based on the second image to cause at least a portion of the second illumination structure to emit light.
  • the first image and the second image may be the same or different, and the embodiment of the present disclosure does not limit this.
  • the embodiments of the present disclosure the embodiments of the display substrate, the embodiment of the method for manufacturing the display substrate, and the embodiment of the method for controlling the display substrate can be referred to each other.
  • the sequence of the steps of the method embodiments provided by the embodiments of the present disclosure can be appropriately adjusted, and the steps can also be correspondingly increased or decreased according to the situation. Any person skilled in the art can easily think of changes within the technical scope disclosed by the disclosure. The method should be covered by the scope of the present disclosure, and therefore will not be described again.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
  • the term “plurality” refers to two or more, unless specifically defined otherwise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本公开提供了一种显示基板及其制备方法、显示面板及装置。该显示基板(01)包括：透光的衬底基板(011)和像素单元(012)，像素单元(012)包括：沿远离衬底基板(011)的方向依次排布的第一发光结构(0121)和第二发光结构(0122)；第一发光结构(0121)被配置为向靠近衬底基板(011)的方向发光，第二发光结构(0122)被配置为向远离衬底基板(011)的方向发光；第一发光结构(0121)在衬底基板(011)上的正投影区域与第二发光结构(0122)在衬底基板(011)上的正投影区域至少部分重叠。本公开提供的显示基板能够实现双面显示，且显示基板的分辨率较高。

Description

显示基板及其制备方法、显示面板及装置
本公开要求于2018年04月03日递交的中国专利申请第201810291802.0号的优先权，在此全文引用上述中国专利申请公开的内容以作为本公开的一部分。
技术领域
本公开涉及一种显示基板及其制备方法、显示面板及装置。
背景技术
随着科技的发展，有机发光二极管(英文：Organic Light-Emitting Diode，简称：OLED)显示装置的应用越来越广泛。
OLED显示装置中的OLED显示基板包括衬底基板，以及设置在衬底基板上的多个像素单元，多个像素单元能够向衬底基板的一侧发光，以使得OLED显示基板的一侧显示图像。
发明内容
本公开提供了一种显示基板及其制备方法、显示面板及装置，所述技术方案如下：
提供了一种显示基板，所述显示基板包括：衬底基板和像素单元，
所述衬底基板透光，所述像素单元包括：沿远离所述衬底基板的方向依次排布的第一发光结构和第二发光结构；所述第一发光结构被配置为向靠近所述衬底基板的方向发光，所述第二发光结构被配置为向远离所述衬底基板的方向发光；
所述第一发光结构在所述衬底基板上的正投影区域与所述第二发光结构在所述衬底基板上的正投影区域至少部分重叠。
可选地，所述第一发光结构在所述衬底基板上的正投影区域与所述第二发光结构在所述衬底基板上的正投影区域全部重叠。
可选地，所述第一发光结构包括：沿远离所述衬底基板的方向依次排布的第一底电极、第一发光层和第一顶电极，所述第二发光结构包括：沿远离所述 衬底基板的方向依次排布的第二底电极、第二发光层和第二顶电极，
所述第一底电极和所述第二顶电极透光，所述第一顶电极和所述第二底电极中的至少一个电极的材质包括遮光材质。
可选地，所述遮光材质包括反光材质。
可选地，所述至少一个电极满足以下至少一种：
所述至少一个电极包括所述第一顶电极，且所述第一顶电极靠近所述衬底基板的表面反光；
所述至少一个电极包括所述第二底电极，且所述第二底电极远离所述衬底基板的表面反光。可选地，所述像素单元还包括：第一像素电路和第二像素电路，
所述第一像素电路电连接至所述第一发光结构；所述第二像素电路电连接至所述第二发光结构。
可选地，所述第一像素电路和所述第二像素电路均位于所述衬底基板和所述第一发光结构之间。
可选地，所述第一发光结构包括沿远离所述衬底基板的方向依次排布的第一底电极、第一发光层和第一顶电极，
所述第一发光层在所述衬底基板上的至少部分正投影区域位于目标区域外，所述目标区域包括：所述第一像素电路和所述第二像素电路在所述衬底基板上的正投影区域。
可选地，所述第一发光层在所述衬底基板上的全部正投影区域位于所述目标区域外。
可选地，所述像素单元还包括：第一绝缘层和第二绝缘层，
所述第一绝缘层位于像素电路层与所述第一发光结构之间，所述像素电路层包括所述第一像素电路和所述第二像素电路；所述第二绝缘层位于所述第一发光结构与所述第二发光结构之间；
所述第一像素电路通过所述第一绝缘层中的第一过孔电连接至所述第一发光结构，所述第二像素电路依次通过所述第一绝缘层中的第二过孔以及所述第二绝缘层中的第三过孔电连接至所述第二发光结构。
可选地，所述第一顶电极的边缘部分在所述衬底基板上的正投影区域位于所述第一发光层在所述衬底基板上的正投影区域外，且所述边缘部分具有目标通孔；
所述第二像素电路依次通过所述第二过孔、所述目标通孔和所述第三过孔电连接至所述第二发光结构，且与所述第一顶电极绝缘。
可选地，所述第一发光结构还包括：位于所述第一底电极和所述第一顶电极之间的第一界定层，且所述第一界定层具有第一开口，所述第一发光层位于所述第一开口内；
所述第二像素电路依次通过所述第二过孔、所述第一界定层中的第四过孔、所述目标通孔和所述第三过孔电连接至所述第二发光结构。
可选地，所述显示基板还包括：位于所述衬底基板上的第一数据线和第二数据线，
所述第一数据线电连接至所述第一像素电路，所述第二数据线电连接至所述第二像素电路。
可选地，所述第一数据线和所述第二数据线均位于所述第一像素电路和所述第二像素电路之间。
可选地，所述显示基板还包括：位于所述衬底基板上的栅线，所述栅线电连接至所述第一像素电路和所述第二像素电路。
另一方面，提供了一种显示基板的制备方法，用于制造上述显示基板，所述方法包括：
提供一透光的衬底基板；
在所述衬底基板上形成像素单元；
其中，所述像素单元包括：沿远离所述衬底基板的方向依次排布的第一发光结构和第二发光结构；所述第一发光结构被配置为向靠近所述衬底基板的方向发光，所述第二发光结构被配置为向远离所述衬底基板的方向发光；
所述第一发光结构在所述衬底基板上的正投影区域与所述第二发光结构在所述衬底基板上的正投影区域至少部分重叠。
又一方面，提供了一种显示面板，所述显示面板包括上述显示基板。
再一方面，提供了一种显示装置，所述显示装置包括：显示控制组件，以及上述显示面板；
所述显示面板包括像素单元，所述显示控制组件电连接至所述像素单元中的第一发光结构和第二发光结构，且被配置为控制所述第一发光结构和所述第二发光结构中的至少一个发光结构发光。
可选地，所述像素单元还包括：第一像素电路和第二像素电路，所述显示 面板还包括：第一数据线和第二数据线，
所述显示控制组件依次通过所述第一数据线和所述第一像素电路电连接至所述第一发光结构，以及依次通过所述第二数据线和所述第二像素电路电连接至所述第二发光结构。
可选地，所述显示控制组件包括：两个控制芯片，
所述两个控制芯片中的一个控制芯片与所述第一发光结构电连接，且被配置为控制所述第一发光结构发光；
所述两个控制芯片中的另一个控制芯片与所述第二发光结构电连接，且被配置为控制所述第二发光结构发光。
附图说明
图1为本公开实施例提供的显示基板的结构示意图；
图2为本公开实施例提供的另一种显示基板的结构示意图；
图3为本公开实施例提供的又一种显示基板的结构示意图；
图4为本公开实施例提供的一种显示基板的俯视图；
图5为本公开实施例提供的一种显示基板的制备方法流程图；
图6为本公开实施例提供的另一种显示基板的制备方法流程图；
图7为本公开实施例提供的一种显示基板的制备过程示意图；
图8为本公开实施例提供的另一种显示基板的制备过程示意图；
图9为本公开实施例提供的另一种显示基板的制备过程示意图；
图10为本公开实施例提供的另一种显示基板的制备过程示意图；
图11为本公开实施例提供的另一种显示基板的制备过程示意图；
图12为本公开实施例提供的一种显示装置的结构示意图；
图13为本公开实施例提供的另一种显示装置的结构示意图；
图14为本公开实施例提供的一种显示面板的控制方法的流程图。
具体实施方式
为了使本公开的原理、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅仅是本公开一部份实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
随着科技的发展，OLED显示装置的应用越来越广泛，但是OLED显示装置中的OLED显示基板只能在其一侧显示图像，因此，OLED显示装置的显示性能较差。发明人所知，通过在OLED显示装置中设置双面OLED显示基板，能够提高OLED显示装置的显示性能。但是，该双面OLED显示基板的分辨率较低。
本公开实施例提供了一种新的显示基板，该显示基板能够实现双面显示，且显示基板的分辨率较高。示例地，图1为本公开实施例提供的显示基板的结构示意图，如图1所示，该显示基板01包括：衬底基板011和像素单元012。
其中，衬底基板011透光，比如衬底基板011的材质可以为透明材质(如硅或碳化硅等)。像素单元012可以包括：沿远离衬底基板011的方向X1依次排布的第一发光结构0121和第二发光结构0122。该第一发光结构0121被配置为向靠近衬底基板011的方向X2发光，第二发光结构0122被配置为向远离衬底基板011的方向X1发光。第一发光结构0121在衬底基板011上的正投影区域与第二发光结构0122在衬底基板011上的正投影区域至少部分重叠。
综上所述，本公开实施例提供的显示基板包括第一发光结构和第二发光结构。第一发光结构和第二发光结构能够向不同的方向发光，从而使得显示基板能够实现双面显示。并且，由于第一发光结构和第二发光结构在衬底基板上的正投影区域至少部分重叠，因此，像素单元在衬底基板上的正投影区域较小，使显示基板中能够包括较多的像素单元，显示基板的分辨率较高。
可选地，请继续参考图1，第一发光结构0121在衬底基板011上的正投影区域可以与第二发光结构0122在衬底基板011上的正投影区域全部重叠。这样一来，就能够最大限度的减小像素单元012在衬底基板011上的正投影区域，最大限度的增多显示基板01中像素单元012的个数，提高显示基板01的分辨率。需要说明的是，图1中以第一发光结构0121在衬底基板011上的正投影区域可以与第二发光结构0122在衬底基板011上的正投影区域全部重叠为例。可选地，第一发光结构0121在衬底基板011上的正投影区域也可以与第二发光结构0122在衬底基板011上的正投影区域部分重叠，本公开实施例对此不作限定。
图2为本公开实施例提供的另一种显示基板的结构示意图，如图2所示，在图1的基础上，第一发光结构0121可以包括：沿远离衬底基板011的方向依次排布的第一底电极01211、第一发光层01212和第一顶电极01213。第二发光结构0122可以包括：沿远离衬底基板011的方向依次排布的第二底电极01221、 第二发光层01222和第二顶电极01223。
示例地，上述第一发光层01212和第二发光层01222的材质均可以为有机发光材质，此时第一发光结构0121和第二发光结构0122可以均为有机发光二极管。或者，上述第一发光层01212和第二发光层01222的材质均可以为无机发光材质，此时第一发光结构0121和第二发光结构0122可以均为发光二极管。上述第一发光层01212和第二发光层01222的材质还可以为其他电致发光材质(如量子点等)，本公开实施例对此不作限定。
第一底电极01211和第二顶电极01223透光。这样一来，第一发光层01212发出的光能够穿过第一底电极01211，并沿靠近衬底基板011的方向传输；第二发光层01222发出的光能够穿过第二顶电极01223，并沿远离衬底基板011的方向传输。可选地，第一底电极01211和第二顶电极01223可以均为透明电极，如氧化铟锡电极或掺铝氧化锌电极等。或者，第一底电极01211和第二顶电极01223可以均为半透明电极(如在透明电极中掺入金属所形成的电极)，本公开实施例对此不作限定。
第一顶电极01213和第二底电极01221中的至少一个电极遮光(该至少一个电极的材质包括遮光材质，如金属)。比如，第一顶电极01213遮光，且第二底电极01221透光；或者，第一顶电极01213透光，且第二底电极01221遮光；或者，第一顶电极01213遮光，且第二底电极01221遮光。这样一来，该至少一个电极能够阻止第一发光层01212发出的光向第二发光结构0122所在侧传输，以及阻止第二发光层01222发出的光向第一发光结构0121所在侧传输，从而防止了第一发光结构0121和第二发光结构0122之间发出的光的互相影响。
可选地，本公开实施例中的电极可以通过反光实现遮光的目的，此时上述遮光材质可以包括反光材质。示例地，第一顶电极01213和第二底电极01221中的至少一个电极反光。需要说明的是，当第一顶电极01213反光时，第一顶电极01213中靠近衬底基板011的第一表面反光，该第一顶电极01213中除第一表面之外的其他表面可以反光或不反光，本公开实施例对此不作限定。当第二底电极01221反光时，第二底电极01221中远离衬底基板011的第二表面反光，该第二底电极01221中除第二表面之外的其他表面可以反光或不反光，本公开实施例对此不作限定。
请继续参考图2，像素单元还可以包括：第一像素电路0123和第二像素电路0124。需要说明的是，本公开实施例中的像素电路(比如上述第一像素电路 和第二像素电路)可以包括至少一个薄膜晶体管，或者，像素电路包括多个薄膜晶体管和至少一个电容。图2中仅示出了像素电路中的一个薄膜晶体管。该薄膜晶体管可以包括：沿远离衬底基板011的方向依次排布的缓冲层、有源层、栅绝缘层、栅极层、中间绝缘层以及源漏极层(包括源极和漏极)。
第一像素电路0123电连接至第一发光结构0121，如第一像素电路0123电连接至第一发光结构0121中的第一底电极01211；第二像素电路0124电连接至第二发光结构0122，如第二像素电路0124电连接至第二发光结构0122中的第二底电极01221。显示基板01所在的显示面板还可以包括显示控制组件，由于第一发光结构0121和第二发光结构0122分别电连接至不同的像素电路，因此，该显示控制组件可以通过不同的像素电路控制第一发光结构和第二发光结构发光。这样一来，就能够实现第一发光结构0121和第二发光结构0122中每个发光结构的独立控制。
可选地，第一像素电路0123和第二像素电路0124可以均位于衬底基板011和第一发光结构0121之间。需要说明的是，第一像素电路0123和第二像素电路0124也可以不位于衬底基板011和第一发光结构0121之间，比如第一像素电路0123和第二像素电路0124均位于第二发光结构0122远离衬底基板01的一侧，本公开实施例对此不作限定。
请继续参考图2，第一发光结构0121中的第一发光层01212在衬底基板011上的至少部分正投影区域可以位于目标区域外，该目标区域包括：第一像素电路0123在衬底基板011上的正投影区域B1和第二像素电路0124在衬底基板011上的正投影区域B2。在第一发光结构0121中的第一发光层01212发出光后，由于第一发光层01212在衬底基板011上的至少部分正投影区域位于目标区域外，因此，第一像素电路0123和第二像素电路0124并未将第一发光层01212全部遮挡，第一发光层01212发出的至少部分光能够射向衬底基板011，进而射出显示基板。
图2中以第一发光层01212在衬底基板011上的部分正投影区域位于目标区域外为例。可选地，图3为本公开实施例提供的又一种显示基板的结构示意图，如图3所示，第一发光层01212在衬底基板011上的全部正投影区域可以均位于目标区域外。此时，第一像素电路0123和第二像素电路0124均未遮挡第一发光层01212，第一发光层01212发出的较多光能够射向衬底基板011，使得从衬底基板011所在侧射出的光的亮度较高。
请继续参考图2，像素单元还可以包括：第一绝缘层0125和第二绝缘层0126。第一绝缘层0125位于像素电路层与第一发光结构0121之间，该像素电路层包括第一像素电路0123和第二像素电路0124。第二绝缘层0126位于第一发光结构0121与第二发光结构0122之间。第一像素电路0123通过第一绝缘层0125中的第一过孔C1电连接至第一发光结构0121，第二像素电路0126依次通过第一绝缘层0125中的第二过孔C2以及第二绝缘层0126中的第三过孔C3电连接至第二发光结构0122。
可选地，在第一发光结构0121中，第一顶电极01213的边缘部分在衬底基板011上的正投影区域位于第一发光层01212在衬底基板011上的正投影区域外，该边缘部分可以具有目标通孔C4。第二像素电路0124依次通过第二过孔C2、目标通孔C4和第三过孔C3电连接至第二发光结构0122，且与第一顶电极01213绝缘。另外，在第二发光结构0122中，第二顶电极01223的边缘部分在衬底基板011上的正投影区域也可以位于第二发光层01222在衬底基板011上的正投影区域外。
显示基板可以包括多个像素单元(图2中仅示出了一个像素单元)。多个像素单元中的第一顶电极01213可以相互电连接，且可以电连接为一体结构；或者，多个像素单元中的第一顶电极01213也可以相互间隔，本公开实施例对此不作限定。多个像素单元中的第二顶电极01223可以相互电连接，且可以电连接为一体结构；或者，多个像素单元中的第二顶电极01223也可以相互间隔，本公开实施例对此不作限定。
请继续参考图2，第一发光结构0121还可以包括：位于第一底电极01211和第一顶电极01213之间的第一界定层01214，且第一界定层01214具有第一开口，第一发光层01212位于第一开口内。该第二像素电路0124依次通过第二过孔C2、第一界定层01213中的第四过孔C5、目标通孔C4和第三过孔C3电连接至第二发光结构0122。另外，第二发光结构0122也可以还包括：第二界定层01224，第二发光层01222和第二界定层01224均可以位于第二底电极01221和第二顶电极01223之间。第二界定层01224具有第二开口，第二发光层01222位于第二开口内。
图4为本公开实施例提供的一种显示基板的俯视图，图1、图2和图3均示出的是图4中截面JJ的示意图。并且，图1、图2和图3中均未示出图4中的数据线(如第一数据线013和第二数据线014)和栅线015，图4中仅示出了像 素单元中的第一像素电路0123和第二像素电路0124，并未示出像素单元中的第一发光结构和第二发光结构。
如图4所示，显示基板01还可以包括：位于衬底基板011上的第一数据线013和第二数据线014。第一数据线013电连接至第一像素电路0123，第二数据线014电连接至第二像素电路0124。可见，第一像素电路0123和第二像素电路0124分别电连接至不同的数据线，这样一来，能够便于显示控制组件通过不同的数据线以及不同的像素电路对第一发光结构和第二发光结构进行控制。
可选地，上述第一数据线013和第二数据线014可以位于第一像素电路0123和第二像素电路0124之间。并且，第一发光层01212在衬底基板上的正投影区域也可以至少部分(如全部)位于该第一数据线013和第二数据线014在衬底基板011上的正投影区域外。这样一来，第一数据线013和第二数据线014也对第一发光结构发出的光线的遮挡较少。可选地，第一数据线013和第二数据线014也可以不位于第一像素电路0123和第二像素电路0124之间，比如第一数据线013和第二数据线014可以位于整个像素单元的两侧或同侧，本公开实施例对此不作限定。
请继续参考图4，显示基板01还可以包括：位于衬底基板011上的栅线015，栅线015电连接至第一像素电路0123和第二像素电路0124。可以看出，像素单元012中的第一像素电路0123和第二像素电路0124电连接至同一栅线015。
需要说明的是，显示基板01可以包括m行n列像素单元012，m≥1，n≥1。此时，显示基板01还可以包括m条栅线015、n条第一数据线013和n条第二数据线014。m条栅线015可以与m行像素单元012一一对应，每条栅线015电连接至其对应的一行像素单元012中的第一像素电路0123和第二像素电路0124。n条第一数据线013可以与n列像素单元012一一对应，每条第一数据线013可以电连接至其对应的一列像素单元012中的第一像素电路0123。n条第二数据线014可以与n列像素单元012一一对应，每条第二数据线014可以电连接至其对应的一列像素单元012中的第二像素电路0124。
综上所述，本公开实施例提供的显示基板包括第一发光结构和第二发光结构。第一发光结构和第二发光结构能够向不同的方向发光，从而使得显示基板能够实现双面显示。并且，由于第一发光结构和第二发光结构在衬底基板上的正投影区域至少部分重叠，因此，像素单元在衬底基板上的正投影区域较小，使显示基板中能够包括较多的像素单元，显示基板的分辨率较高。
图5为本公开实施例提供的一种显示基板的制备方法流程图，该方法可以用于制造本公开实施例提供的显示基板(如图图1、图2、图3或图4所示的显示基板)，如图5所示，该显示基板的制备方法可以包括：
在步骤501中，提供一透光的衬底基板。
在步骤502中，在衬底基板上形成像素单元。其中，该像素单元包括：沿远离衬底基板的方向依次排布的第一发光结构和第二发光结构；第一发光结构被配置为向靠近衬底基板的方向发光，第二发光结构被配置为向远离衬底基板的方向发光；第一发光结构在衬底基板上的正投影区域与第二发光结构在衬底基板上的正投影区域至少部分重叠。
综上所述，在本公开实施例提供的方法所制备的显示基板包括第一发光结构和第二发光结构。第一发光结构和第二发光结构能够向不同的方向发光，从而使得显示基板能够实现双面显示。并且，由于第一发光结构和第二发光结构在衬底基板上的正投影区域至少部分重叠，因此，像素单元在衬底基板上的正投影区域较小，使显示基板中能够包括较多的像素单元，显示基板的分辨率较高。
图6为本公开实施例提供的另一种显示基板的制备方法流程图，如图6所示，该显示装置的制备方法可以包括：
在步骤601中，提供一透光的衬底基板。
步骤601中可以提供一透明材质的衬底基板，该透明材质可以为硅或碳化硅等。
在步骤602中，在衬底基板上形成栅线、第一数据线、第二数据线和像素电路层。
衬底基板上形成的像素电路层可以如图7所示(图7中并未示出栅线、第一数据线和第二数据线)，该像素电路层可以包括像素单元中的第一像素电路0123和第二像素电路0124。上述栅线可以与第一像素电路和第二像素电路均电连接，上述第一数据线可以与第一像素电路电连接，上述第二数据线可以与第二像素电连接。需要说明的是，当本公开实施例用于制备的显示基板包括多个像素单元时，该像素电路层可以包括多个像素单元中的第一像素电路和第二像素电路。
在步骤603中，在形成有栅线、第一数据线、第二数据线和像素电路层的衬底基板上形成第一绝缘层。
在形成该第一绝缘层时，可以首先在像素电路层上形成绝缘材质层，并在该绝缘材质层中形成第一过孔和第二过孔，以得到图8中的第一绝缘层0125。其中，该第一绝缘层0125中的第一过孔C1连通第一像素电路0123，第二过孔C2连通第二像素电路0124。
在步骤604中，在形成有第一绝缘层的衬底基板上形成第一发光结构。
示例地，该第一发光结构可以包括：第一底电极、第一发光层、第一顶电极以及第一界定层。在形成该第一发光结构时，可以首先在第一绝缘层上形成第一底电极，且该第一底电极可以通过第一绝缘层中的第一过孔电连接至第一像素电路。之后，在该第一底电极上形成具有第一开口和第四过孔的第一界定层。然后，可以在该第一开口内形成第一发光层，最后形成覆盖第一界定层和第一发光层且具有目标过孔的第一顶电极，从而得到如图9所示的第一发光结构0121。其中，第一顶电极01213中的目标过孔C4连通第一界定层01213中的第四过孔C5，第一界定层01213中的第四过孔C5连通第一绝缘层0125中的第二过孔C2。
可选地，当本公开实施例用于制备的显示基板包括多个像素单元时，该多个像素单元中的第一顶电极可以连接为一体结构，此时，多个像素单元的第一顶电极可以同时形成。
在步骤605中，在形成有第一发光结构的衬底基板上形成第二绝缘层。
在形成该第二绝缘层时，可以首先在第一发光结构上形成绝缘材质层，并在该绝缘材质层中形成第三过孔，以得到图10中的第二绝缘层0126。其中，该第一绝缘层0126中的第二过孔C3连通第一顶电极01213中的目标过孔C4。
在步骤606中，在形成有第二绝缘层的衬底基板上形成第二发光结构。
示例地，该第二发光结构可以包括：第二底电极、第二发光层、第二顶电极以及第二界定层。在形成该第二发光结构时，可以首先在第二绝缘层上形成第二底电极，该第二底电极依次通过上述第二过孔、第四过孔、目标通孔和第三过孔电连接至第二像素电路。之后，在该第二底电极上形成具有第二开口的第二界定层。然后，可以在该第二开口内形成第二发光层，最后形成覆盖第二界定层和第二发光层的第二顶电极，从而得到如图11所示的第二发光结构0122。
可选地，当本公开实施例用于制备的显示基板包括多个像素单元时，该多 个像素单元中的第二顶电极可以连接为一体结构，此时，多个像素单元的第二顶电极可以同时形成。
综上所述，在本公开实施例提供的方法所制备的显示基板包括第一发光结构和第二发光结构。第一发光结构和第二发光结构能够向不同的方向发光，从而使得显示基板能够实现双面显示。并且，由于第一发光结构和第二发光结构在衬底基板上的正投影区域至少部分重叠，因此，像素单元在衬底基板上的正投影区域较小，使显示基板中能够包括较多的像素单元，显示基板的分辨率较高。
本公开实施例还提供了一种显示面板，该显示面板可以包括本公开实施例提供的显示基板(如图1、图2、图3或图4所示的显示基板)。
可选地，该显示面板还可以包括盖板，盖板与显示基板的衬底基板相对设置，显示基板中的像素单元位于盖板和衬底基板之间。该盖板透光，比如盖板的材质为硅或碳化硅等。
本公开实施例还提供了一种显示装置，该显示装置可以包括本公开实施例提供的显示面板，以及显示控制组件。示例地，图12为本公开实施例提供的一种显示装置的结构示意图，如图12所示，该显示装置可以包括：显示控制组件10以及显示面板。需要说明的是，图12中仅示出了显示面板中的显示基板，且以该显示基板为图4所示的显示基板为例。
显示控制组件10与显示基板中的像素单元012中的第一发光结构和第二发光结构连接。显示控制组件10可以被配置为控制第一发光结构和第二发光结构中的至少一个发光结构发光。示例地，显示控制组件10可以被配置为：控制第一发光结构和第二发光结构发光，或者控制第一发光结构发光，或者控制第二发光结构发光。其中，显示控制组件10在控制每个发光结构发光时，可以向该发光结构提供数据信号，以使该发光结构在该数据信号的作用下发光。可选地，显示控制组件向第一发光结构和第二发光结构提供的数据信号可以相同也可以不同，本公开实施例对此不作限定。
综上所述，本公开实施例提供的显示装置包括第一发光结构和第二发光结构。第一发光结构和第二发光结构能够向不同的方向发光，从而使得显示基板能够实现双面显示。并且，由于第一发光结构和第二发光结构在衬底基板上的 正投影区域至少部分重叠，因此，像素单元在衬底基板上的正投影区域较小，使显示基板中能够包括较多的像素单元，显示基板的分辨率较高。
请继续参考图12，像素单元012还可以包括：第一像素电路0123和第二像素电路0124，显示控制组件10可以通过第一像素电路0123电连接至第一发光结构，以及通过第二像素电路0124电连接至第二发光结构。
进一步地，显示面板还包括：第一数据线013和第二数据线014，显示控制组件10可以通过第一数据线013电连接至第一像素电路0123，以及通过第二数据线014电连接至第二像素电路0124。此时，相当于显示控制组件10依次通过第一数据线013和第一像素电路0123电连接至第一发光结构，以及依次通过第二数据线014和第二像素电路0124电连接至第二发光结构。
图12中的显示控制组件10可以包括一个控制芯片(如图12中的第一控制芯片101)。该第一控制芯片101电连接至显示面板中的所有数据线，并通过这些数据线控制显示面板中的第一发光结构和第二发光结构发光。需要说明的是，图12中以显示控制组件10包括一个控制芯片为例，该显示控制组件10也可以包括多个控制芯片，本公开实施例对此不作限定。当显示控制组件10包括两个控制芯片时，两个控制芯片中的一个控制芯片可以与显示面板中的第一发光结构电连接，并被配置为控制第一发光结构发光。两个控制芯片中的另一个控制芯片与第二发光结构电连接，被配置为向第二发光结构提供数据信号。
示例地，图13为本公开实施例提供的另一种显示装置的结构示意图，如图13所示，显示控制组件10中的两个控制芯片可以分别为第二控制芯片102和第三控制芯片103。该第二控制芯片102电连接至显示面板中的第一数据线013，用于通过该第一数据线013和第一像素电路0123控制第一发光结构发光。第三控制芯片103电连接至显示面板中的第二数据线014，用于通过该第二数据线014和第二像素电路0124控制第二发光结构发光。
示例的，该显示装置可以为：电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
综上所述，本公开实施例提供的显示装置包括第一发光结构和第二发光结构。第一发光结构和第二发光结构能够向不同的方向发光，从而使得显示基板能够实现双面显示。并且，由于第一发光结构和第二发光结构在衬底基板上的正投影区域至少部分重叠，因此，像素单元在衬底基板上的正投影区域较小，使显示基板中能够包括较多的像素单元，显示基板所在的装置的分辨率较高。
图14为本公开实施例提供的一种显示面板的控制方法的流程图，该方法可以由上述显示装置中的显示控制组件执行，用于控制该显示装置中的显示面板，如图14所示，该显示面板的控制方法可以包括：
在步骤1401中，向第一发光结构和第二发光结构中的至少一种发光结构提供数据信号，以使该至少一种发光结构发光。
需要说明的是，显示控制组件依次通过第一数据线和第一像素电路电连接至第一发光结构，以及依次通过第二数据线和第二像素电路电连接至第二发光结构。所以，显示控制组件在需要向第一发光结构提供数据信号时，可以向第一数据线输入数据信号，以使该数据信号通过第一数据线和第一像素电路输入至第一发光结构。显示控制组件在需要向第二发光结构提供数据信号时，可以向第二数据线输入数据信号，以使该数据信号通过第二数据线和第二像素电路输入至第二发光结构。
另外，本公开实施例中的显示控制组件可以包括一个控制芯片或多个控制芯片。其中，当该显示控制组件包括两个控制芯片时，一个控制芯片需要根据显示面板中的衬底基板所在侧需要显示的图像，向第一发光结构提供数据信号；另一个控制芯片需要根据显示面板中衬底基板所在侧的对侧需要显示的图像，向第二发光结构提供数据信号。
本公开实施例提供的显示装置具有单面显示模式和双面显示模式，显示装置在单面显示模式下可以单面显示图像，显示装置在双面显示模式下可以双面显示图像。并且，在显示装置双面显示图像时，显示装置的双面可以显示相同的图像或不同的图像。
一方面，在显示装置的单面显示模式下，若显示装置中的衬底基板所在侧需要显示图像，则在步骤1401中，显示控制组件可以根据待显示图像，向显示装置中的第一发光结构提供数据信号，以使显示装置中的至少部分第一发光结构发光。若显示装置中的衬底基板所在侧的对侧需要显示图像，则在步骤1401中，显示控制组件可以根据待显示图像，向显示装置中的第二发光结构提供数据信号，以使显示装置中的至少部分第二发光结构发光。
另一方面，在显示装置的双面显示模式下，假设显示面板的衬底基板所在侧需要显示第一图像，显示面板中衬底基板所在侧的对侧需要显示第二图像。在步骤1401中，显示控制组件可以根据该第一图像向第一发光结构提供第一数 据信号，以使至少部分第一发光结构发光。显示控制组件还可以根据该第二图像向第二发光结构提供第二数据信号，以使至少部分第二发光结构发光。上述第一图像和第二图像可以相同也可以不同，本公开实施例对此不作限定。
需要说明的是，本公开实施例提供显示基板实施例、显示基板的制造方法实施例以及显示基板的控制方法实施例均可以相互参考，本公开实施例对此不做限定。本公开实施例提供的方法实施例步骤的先后顺序能够进行适当调整，步骤也能够根据情况进行相应增减，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化的方法，都应涵盖在本公开的保护范围之内，因此不再赘述。
需要指出的是，在附图中，为了图示的清晰可能夸大了层和区域的尺寸。而且可以理解，当元件或层被称为在另一元件或层“上”时，它可以直接在其他元件上，或者可以存在中间的层。另外，可以理解，当元件或层被称为在另一元件或层“下”时，它可以直接在其他元件下，或者可以存在一个以上的中间的层或元件。另外，还可以理解，当层或元件被称为在两层或两个元件“之间”时，它可以为两层或两个元件之间惟一的层，或还可以存在一个以上的中间层或元件。通篇相似的参考标记指示相似的元件。
在本公开中，术语“第一”和“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。术语“多个”指两个或两个以上，除非另有明确的限定。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未发明的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (20)

  1. 一种显示基板，其特征在于，所述显示基板(01)包括：衬底基板(011)和像素单元(012)，
    所述衬底基板(011)透光，所述像素单元(012)包括：沿远离所述衬底基板的方向依次排布的第一发光结构(0121)和第二发光结构(0122)；所述第一发光结构(0121)在所述衬底基板(011)上的正投影区域与所述第二发光结构(0122)在所述衬底基板(011)上的正投影区域至少部分重叠；
    所述第一发光结构(0121)被配置为向靠近所述衬底基板(011)的方向发光，所述第二发光结构(0122)被配置为向远离所述衬底基板(011)的方向发光。
  2. 根据权利要求1所述的显示基板，其特征在于，所述第一发光结构(0121)在所述衬底基板(011)上的正投影区域与所述第二发光结构(0122)在所述衬底基板(011)上的正投影区域全部重叠。
  3. 根据权利要求1或2所述的显示基板，其特征在于，所述第一发光结构(0121)包括：沿远离所述衬底基板(011)的方向依次排布的第一底电极(01211)、第一发光层(01212)和第一顶电极(01213)；
    所述第二发光结构(0122)包括：沿远离所述衬底基板(011)的方向依次排布的第二底电极(01221)、第二发光层(01222)和第二顶电极(01223)，
    所述第一底电极(01211)和所述第二顶电极(01223)透光，所述第一顶电极(01213)和所述第二底电极(01221)中的至少一个电极的材质包括遮光材质。
  4. 根据权利要求3所述的显示基板，其特征在于，所述遮光材质包括反光材质。
  5. 根据权利要求4所述的显示基板，其特征在于，所述至少一个电极满足以下至少一种：
    所述至少一个电极包括所述第一顶电极(01213)，且所述第一顶电极 (01213)靠近所述衬底基板(011)的表面反光；
    所述至少一个电极包括所述第二底电极(01221)，且所述第二底电极(01221)远离所述衬底基板(011)的表面反光。
  6. 根据权利要求1至5任一所述的显示基板，其特征在于，所述像素单元(012)还包括：第一像素电路(0123)和第二像素电路(0124)，
    所述第一像素电路(0123)电连接至所述第一发光结构(0121)；所述第二像素电路(0124)电连接至所述第二发光结构(0122)。
  7. 根据权利要求6所述的显示基板，其特征在于，所述第一像素电路(0123)和所述第二像素电路(0124)均位于所述衬底基板(011)和所述第一发光结构(0121)之间。
  8. 根据权利要求7所述的显示基板，其特征在于，所述第一发光结构(0121)包括沿远离所述衬底基板(011)的方向依次排布的第一底电极(01211)、第一发光层(01212)和第一顶电极(01213)，
    所述第一发光层(01212)在所述衬底基板(011)上的至少部分正投影区域位于目标区域外，所述目标区域包括：所述第一像素电路(0123)和所述第二像素电路(0124)在所述衬底基板(011)上的正投影区域。
  9. 根据权利要求8所述的显示基板，其特征在于，所述第一发光层(01212)在所述衬底基板(011)上的全部正投影区域位于所述目标区域外。
  10. 根据权利要求7至9任一所述的显示基板，其特征在于，所述像素单元(012)还包括：第一绝缘层(0125)和第二绝缘层(0126)，
    所述第一绝缘层(0125)位于像素电路层与所述第一发光结构(0121)之间，所述像素电路层包括所述第一像素电路(0123)和所述第二像素电路(0124)；所述第二绝缘层(0126)位于所述第一发光结构(0121)与所述第二发光结构(0122)之间；
    所述第一像素电路(0123)通过所述第一绝缘层(0125)中的第一过孔电 连接至所述第一发光结构(0121)，所述第二像素电路(0124)依次通过所述第一绝缘层(0125)中的第二过孔以及所述第二绝缘层(0126)中的第三过孔电连接至所述第二发光结构(0122)。
  11. 根据权利要求10所述的显示基板，其特征在于，所述第一顶电极(01213)的边缘部分在所述衬底基板(011)上的正投影区域位于所述第一发光层(01212)在所述衬底基板(011)上的正投影区域外，且所述边缘部分具有目标通孔；
    所述第二像素电路(0124)依次通过所述第二过孔、所述目标通孔和所述第三过孔电连接至所述第二发光结构(0122)，且与所述第一顶电极(01213)绝缘。
  12. 根据权利要求11所述的显示基板，其特征在于，所述第一发光结构(0121)还包括：位于所述第一底电极(01211)和所述第一顶电极(01213)之间的第一界定层(01214)，且所述第一界定层(01214)具有第一开口，所述第一发光层(01212)位于所述第一开口内；
    所述第二像素电路(0124)依次通过所述第二过孔、所述第一界定层(01214)中的第四过孔、所述目标通孔和所述第三过孔电连接至所述第二发光结构(0122)。
  13. 根据权利要求6至12任一所述的显示基板，其特征在于，所述显示基板(01)还包括：位于所述衬底基板(011)上的第一数据线(013)和第二数据线(014)，
    所述第一数据线(013)电连接至所述第一像素电路(0123)，所述第二数据线(014)电连接至所述第二像素电路(0124)。
  14. 根据权利要求13所述的显示基板，其特征在于，所述第一数据线(013)和所述第二数据线(014)均位于所述第一像素电路(0123)和所述第二像素电路(0124)之间。
  15. 根据权利要求6至14任一所述的显示基板，其特征在于，所述显示基 板(01)还包括：位于所述衬底基板(011)上的栅线(015)，所述栅线(015)电连接至所述第一像素电路(0123)和所述第二像素电路(0124)。
  16. 一种显示基板的制备方法，其特征在于，用于制造权利要求1至15任一所述的显示基板，所述方法包括：
    提供一透光的衬底基板；
    在所述衬底基板上形成像素单元；
    其中，所述像素单元包括：沿远离所述衬底基板的方向依次排布的第一发光结构和第二发光结构，且所述第一发光结构在所述衬底基板上的正投影区域与所述第二发光结构在所述衬底基板上的正投影区域至少部分重叠；
    所述第一发光结构被配置为向靠近所述衬底基板的方向发光，所述第二发光结构被配置为向远离所述衬底基板的方向发光。
  17. 一种显示面板，其特征在于，所述显示面板包括权利要求1至15任一所述的显示基板。
  18. 一种显示装置，其特征在于，所述显示装置包括：显示控制组件(10)，以及权利要求17所述的显示面板；
    所述显示面板包括像素单元(012)，所述显示控制组件(10)电连接至所述像素单元(012)中的第一发光结构(0121)和第二发光结构(0122)，且被配置为控制所述第一发光结构(0121)和所述第二发光结构(0122)中的至少一个发光结构发光。
  19. 根据权利要求18所述的显示装置，其特征在于，所述像素单元(012)还包括：第一像素电路(0123)和第二像素电路(0124)，所述显示面板还包括：第一数据线(013)和第二数据线(014)，
    所述显示控制组件(10)依次通过所述第一数据线(013)和所述第一像素电路(0123)电连接至所述第一发光结构(0121)，以及依次通过所述第二数据线(014)和所述第二像素电路(0124)电连接至所述第二发光结构(0122)。
  20. 根据权利要求18或19所述的显示装置，其特征在于，所述显示控制组件(10)包括：两个控制芯片，
    所述两个控制芯片中的一个控制芯片与所述第一发光结构(0121)电连接，且被配置为控制所述第一发光结构(0121)发光；
    所述两个控制芯片中的另一个控制芯片与所述第二发光结构(0122)电连接，且被配置为控制所述第二发光结构(0122)发光。
PCT/CN2019/080364 2018-04-03 2019-03-29 显示基板及其制备方法、显示面板及装置 WO2019192399A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/620,120 US11024225B2 (en) 2018-04-03 2019-03-29 Display substrate, method for manufacturing the same, display panel and display apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810291802.0 2018-04-03
CN201810291802.0A CN108492771B (zh) 2018-04-03 2018-04-03 双面显示装置及其控制方法

Publications (1)

Publication Number Publication Date
WO2019192399A1 true WO2019192399A1 (zh) 2019-10-10

Family

ID=63318340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/080364 WO2019192399A1 (zh) 2018-04-03 2019-03-29 显示基板及其制备方法、显示面板及装置

Country Status (3)

Country Link
US (1) US11024225B2 (zh)
CN (1) CN108492771B (zh)
WO (1) WO2019192399A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108492771B (zh) 2018-04-03 2020-07-07 京东方科技集团股份有限公司 双面显示装置及其控制方法
CN109300960B (zh) * 2018-10-10 2021-04-27 深圳市华星光电半导体显示技术有限公司 显示器件及其制作方法
WO2021088037A1 (zh) * 2019-11-08 2021-05-14 京东方科技集团股份有限公司 阵列基板及其制造方法、显示面板、显示装置
CN111628103A (zh) * 2020-05-18 2020-09-04 武汉华星光电半导体显示技术有限公司 一种显示面板及制备方法
CN112542097A (zh) * 2020-12-04 2021-03-23 Tcl华星光电技术有限公司 一种双面显示面板及制备方法
CN114023243B (zh) * 2021-11-24 2024-01-16 北京有竹居网络技术有限公司 多层显示面板及其控制方法、控制装置、设备和存储介质
CN114170919A (zh) * 2021-12-13 2022-03-11 Tcl华星光电技术有限公司 双面显示面板及双面显示拼接屏
CN114783363A (zh) * 2022-04-25 2022-07-22 深圳市华星光电半导体显示技术有限公司 显示装置和信号控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060289857A1 (en) * 2005-06-27 2006-12-28 Wintek Corporation Organic light emitting display capable of showing images on double sides thereof
CN107104132A (zh) * 2017-06-14 2017-08-29 武汉华星光电半导体显示技术有限公司 双面显示装置及其制备方法
CN107331687A (zh) * 2017-07-11 2017-11-07 武汉华星光电半导体显示技术有限公司 Oled双面显示器及其制作方法
CN107863372A (zh) * 2017-10-27 2018-03-30 朱秋华 一种双面oled显示面板、显示装置及其制备方法
CN108492771A (zh) * 2018-04-03 2018-09-04 京东方科技集团股份有限公司 双面显示装置及其控制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050052342A1 (en) * 2003-07-31 2005-03-10 Ritdisplay Corporation Dual display device
CN201594377U (zh) * 2009-09-01 2010-09-29 广州视景显示技术研发有限公司 一种正反显示的液晶显示器
KR102092705B1 (ko) 2013-08-16 2020-03-25 삼성디스플레이 주식회사 유기 발광 표시장치 및 그 제조방법
CN103995374B (zh) 2014-05-22 2016-08-24 深圳市华星光电技术有限公司 一种显示面板及显示装置
DE102015103124B4 (de) * 2015-03-04 2017-05-11 Osram Oled Gmbh Beidseitig emittierende organische Anzeigevorrichtungen und Verfahren zum Herstellen beidseitig emittierender organischer Anzeigevorrichtungen
CN105047167B (zh) * 2015-08-28 2018-03-09 京东方科技集团股份有限公司 一种源极驱动电路、显示装置及其驱动方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060289857A1 (en) * 2005-06-27 2006-12-28 Wintek Corporation Organic light emitting display capable of showing images on double sides thereof
CN107104132A (zh) * 2017-06-14 2017-08-29 武汉华星光电半导体显示技术有限公司 双面显示装置及其制备方法
CN107331687A (zh) * 2017-07-11 2017-11-07 武汉华星光电半导体显示技术有限公司 Oled双面显示器及其制作方法
CN107863372A (zh) * 2017-10-27 2018-03-30 朱秋华 一种双面oled显示面板、显示装置及其制备方法
CN108492771A (zh) * 2018-04-03 2018-09-04 京东方科技集团股份有限公司 双面显示装置及其控制方法

Also Published As

Publication number Publication date
US20200211455A1 (en) 2020-07-02
CN108492771A (zh) 2018-09-04
US11024225B2 (en) 2021-06-01
CN108492771B (zh) 2020-07-07

Similar Documents

Publication Publication Date Title
WO2019192399A1 (zh) 显示基板及其制备方法、显示面板及装置
CN108986678B (zh) 一种显示面板及其制作方法、显示装置
KR102558519B1 (ko) 표시 패널, 제조 방법 및 전자 기기
WO2018113236A1 (zh) 有机电致发光显示面板及其制作方法、显示装置
WO2020133738A1 (zh) Oled 显示面板及屏下光学指纹识别方法
JP5364227B2 (ja) 読み取り機能付き表示装置及びそれを用いた電子機器
KR20200118266A (ko) 표시 장치 및 이의 제조 방법
WO2021238490A1 (zh) 显示基板和显示装置
CN110034128B (zh) 显示装置及其驱动方法
TW201813047A (zh) 顯示裝置以及其驅動方法
CN108550602B (zh) 显示面板和显示装置
WO2023010696A1 (zh) 一种显示面板及显示装置
WO2021098133A1 (zh) 显示装置及显示面板
JP2023531340A (ja) 表示基板及び表示装置
US11362158B2 (en) Organic light-emitting diode display device
JP7111793B2 (ja) 画素アレイ基板およびこれを備えるディスプレイ装置
US20220165796A1 (en) Display device, display panel and method of manufacturing display panel
WO2023231256A1 (zh) 显示面板、显示装置及显示面板的制备方法
KR102666703B1 (ko) 전계 발광 표시장치
CN110518149A (zh) 显示装置及显示面板
KR102608509B1 (ko) 디스플레이 장치
WO2021226785A1 (zh) 显示面板和显示装置
TWI684174B (zh) 顯示面板
KR102660306B1 (ko) 폴더블 전계 발광 표시장치
WO2023151127A1 (zh) Oled显示面板及其制作方法、oled显示模组

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19781202

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19781202

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 09/04/2021)

122 Ep: pct application non-entry in european phase

Ref document number: 19781202

Country of ref document: EP

Kind code of ref document: A1