WO2021227062A1 - 显示面板和电子装置 - Google Patents

显示面板和电子装置 Download PDF

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Publication number
WO2021227062A1
WO2021227062A1 PCT/CN2020/090650 CN2020090650W WO2021227062A1 WO 2021227062 A1 WO2021227062 A1 WO 2021227062A1 CN 2020090650 W CN2020090650 W CN 2020090650W WO 2021227062 A1 WO2021227062 A1 WO 2021227062A1
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WIPO (PCT)
Prior art keywords
sub
base substrate
anode
orthographic projection
pixel
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Application number
PCT/CN2020/090650
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English (en)
French (fr)
Inventor
李蒙
吴仲远
李永谦
张大成
王景泉
王玉
许晨
Original Assignee
京东方科技集团股份有限公司
合肥京东方卓印科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方卓印科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to JP2021577077A priority Critical patent/JP2023528701A/ja
Priority to PCT/CN2020/090650 priority patent/WO2021227062A1/zh
Priority to CN202080000750.2A priority patent/CN113950746A/zh
Priority to EP20904236.5A priority patent/EP4012774A4/en
Priority to US17/280,316 priority patent/US11482582B2/en
Publication of WO2021227062A1 publication Critical patent/WO2021227062A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • G09G3/3233Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • H10K59/121Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • H10K59/121Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1213Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • H10K59/121Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1216Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being capacitors
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80Constructional details
    • H10K59/805Electrodes
    • H10K59/8051Anodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0421Structural details of the set of electrodes
    • G09G2300/0426Layout of electrodes and connections
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0842Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/029Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
    • G09G2320/0295Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display panel and an electronic device.
  • Transparent display as a brand-new display technology, allows the observer to see the background behind the screen through the display screen. This novel display effect has broadened the application field of the display and has received widespread attention.
  • Some embodiments of the present disclosure provide a display panel, including: a base substrate; and pixels disposed on the base substrate, wherein the pixels include a first sub-pixel and a second sub-pixel, and the first sub-pixel
  • the pixel includes a first sub-pixel driving circuit and a first light-emitting element driven by the first sub-pixel driving circuit.
  • the second sub-pixel includes a second sub-pixel driving circuit and a second sub-pixel driving circuit.
  • the second light-emitting element, the first sub-pixel driving circuit and the second sub-pixel driving circuit are arranged in sequence along a first direction parallel to the base substrate and all extend in a second direction, the second direction being parallel to The base substrate crosses the first direction, wherein the first light-emitting element includes a first anode electrically connected to the first sub-pixel driving circuit, and the second light-emitting element includes a A second anode electrically connected to the circuit, and the orthographic projection of each of the first anode and the second anode on the base substrate partially covers the first sub-pixel driving circuit on the base substrate
  • the orthographic projection of the second sub-pixel drive circuit on the base substrate, the orthographic projection of the first anode on the base substrate and the orthographic projection of the second anode on the base substrate The orthographic projections on do not overlap.
  • the first sub-pixel driving circuit and the second sub-pixel driving circuit each include a detection transistor, a storage capacitor, and a switching transistor.
  • the detection transistor and the switch The transistors are respectively located on both sides of the storage capacitor, and the orthographic projection of one of the first anode and the second anode on the base substrate at least partially covers the detection in the first sub-pixel drive circuit
  • the orthographic projection of the other one on the base substrate at least partially covers the orthographic projection of the switching transistor in the first sub-pixel drive circuit on the base substrate and at least partially covers the second sub-pixel
  • the orthographic projection of the switching transistor in the pixel driving circuit on the base substrate are respectively located on both sides of the storage capacitor, and the orthographic projection of one of the first anode and the second anode on the base substrate at least partially covers the detection in the first sub-
  • the orthographic projection of the one of the first anode and the second anode on the base substrate covers the first part of the storage capacitor in the first sub-pixel driving circuit.
  • the orthographic projection on the base substrate and the orthographic projection of the first part of the storage capacitor in the second sub-pixel drive circuit on the base substrate, the other of the first anode and the second anode An orthographic projection on the base substrate covers the orthographic projection of the second part of the storage capacitor in the first sub-pixel drive circuit on the base substrate and covers the second part of the second sub-pixel drive circuit
  • An orthographic projection of the second part of the storage capacitor on the base substrate In each of the first sub-pixel driving circuit and the second sub-pixel driving circuit, the first part of the storage capacitor is larger than the The second part of the storage capacitor is closer to the detection transistor.
  • the orthographic projection of the one of the first anode and the second anode on the base substrate completely covers the detection transistor in the first sub-pixel drive circuit on the substrate.
  • the orthographic projection on the base substrate completely covers the orthographic projection of the detection transistor in the second sub-pixel drive circuit on the base substrate, and the other of the first anode and the second anode is in the
  • the orthographic projection on the base substrate completely covers the orthographic projection of the switch transistor in the first sub-pixel drive circuit on the base substrate and completely covers the switch transistor in the second sub-pixel drive circuit Orthographic projection on the base substrate.
  • the pixel further includes a third sub-pixel and a fourth sub-pixel
  • the third sub-pixel includes a third sub-pixel driving circuit and a third light-emitting element driven by the third sub-pixel driving circuit
  • the fourth sub-pixel includes a fourth sub-pixel drive circuit and a fourth light-emitting element driven by the fourth sub-pixel drive circuit, the first sub-pixel drive circuit, the second sub-pixel drive circuit, and the The third sub-pixel drive circuit and the fourth sub-pixel drive circuit are arranged in sequence along a first direction parallel to the base substrate and both extend along the second direction;
  • the third light-emitting element includes a third anode electrically connected to the third sub-pixel driving circuit
  • the fourth light-emitting element includes a fourth anode electrically connected to the fourth sub-pixel driving circuit
  • the The orthographic projection of each of the third anode and the fourth anode on the base substrate partially covers the orthographic projection of the third sub-pixel drive circuit on the base substrate and the fourth sub-pixel
  • the third sub-pixel driving circuit and the fourth sub-pixel driving circuit each include a detection transistor, a storage capacitor, and a switching transistor.
  • the detection transistor and the switching transistor are respectively located on both sides of the storage capacitor; wherein, the third anode and the fourth anode
  • the orthographic projection of one of them on the base substrate at least partially covers the orthographic projection of the detection transistor in the third sub-pixel drive circuit on the base substrate and at least partially covers the fourth sub-pixel drive circuit
  • the orthographic projection of the detection transistor in the base substrate on the base substrate, and the orthographic projection of the other of the third anode and the fourth anode on the base substrate at least partially covers the third sub-pixel drive circuit
  • the orthographic projection of the one of the third anode and the fourth anode on the base substrate covers the first part of the storage capacitor in the third sub-pixel drive circuit on the substrate.
  • the orthographic projection on the base substrate and covering the orthographic projection of the first part of the storage capacitor in the fourth sub-pixel drive circuit on the base substrate, the other of the third anode and the fourth anode An orthographic projection on the base substrate covers the orthographic projection of the second part of the storage capacitor in the third sub-pixel drive circuit on the base substrate and covers the fourth sub-pixel drive circuit
  • An orthographic projection of the second part of the storage capacitor on the base substrate In each of the third sub-pixel driving circuit and the fourth sub-pixel driving circuit, the first part of the storage capacitor is larger than the The second part of the storage capacitor is closer to the detection transistor.
  • the orthographic projection of the one of the third anode and the fourth anode on the base substrate completely covers the detection transistor in the third sub-pixel drive circuit on the substrate.
  • the orthographic projection on the base substrate completely covers the orthographic projection of the detection transistor in the fourth sub-pixel drive circuit on the base substrate, and the other of the third anode and the fourth anode is
  • the orthographic projection on the base substrate completely covers the orthographic projection of the switching transistors in the third sub-pixel driving circuit on the base substrate and completely covers the switching transistors in the fourth sub-pixel driving circuit on the substrate. Orthographic projection on the bottom substrate.
  • each of the first sub-pixel driving circuit, the second sub-pixel driving circuit, the third sub-pixel driving circuit, and the fourth sub-pixel driving circuit further includes : A driving transistor, located on the side of the storage capacitor away from the detection transistor and between the storage capacitor and the switching transistor, the driving transistor includes being sequentially away from the storage capacitor in the second direction
  • the detection transistor includes a source, a gate, and a drain that are sequentially arranged away from the storage capacitor in the second direction
  • the storage capacitor includes sequentially stacked on the The first capacitor electrode, the second capacitor electrode, and the third capacitor electrode on the base substrate, the source electrode of the driving transistor, the third capacitor electrode, and the source electrode of the detection transistor are arranged on the same layer and connected to each other as One-piece structure.
  • the display panel further includes: a source-drain metal layer, including the integrated structure in each sub-pixel driving circuit; an anode layer, located on the side of the source-drain metal layer away from the base substrate, It includes a first anode, a second anode, a third anode, and a fourth anode.
  • a planarization layer is provided on the side of the source and drain metal layer away from the base substrate and is provided on the side of the anode layer facing the One side of the base substrate, wherein the planarization layer is provided with: a first anode via hole, and the first anode is electrically connected to the integral part of the first sub-pixel driving circuit through the first anode via hole.
  • a second anode via, the second anode is electrically connected to the integrated structure of the second sub-pixel drive circuit through the second anode via; a third anode via, the third anode is through the The third anode via is electrically connected to the integrated structure of the third sub-pixel drive circuit; the fourth anode via is electrically connected to the fourth sub-pixel drive circuit through the four-anode via One-piece structure.
  • the orthographic projection of one anode via of the first anode via and the second anode via on the base substrate falls into a sub-connector electrically connected to the one anode via.
  • the source of the detection transistor in the pixel drive circuit is in the orthographic projection on the base substrate; the other of the first anode via hole and the second anode via hole is in the base substrate.
  • the above orthographic projection falls within the orthographic projection of the third capacitor electrode of the storage capacitor in the sub-pixel drive circuit electrically connected to the other anode via on the base substrate, and is in the second direction
  • the source electrode is between the orthographic projections on the base substrate, and the orthographic projection of one of the third anode via hole and the fourth anode via hole on the base substrate falls into The source of the detection transistor
  • the center of the orthographic projection of the first anode via on the base substrate and one of the third anode via and the fourth anode via are on the base substrate
  • the straight connecting line of the center of the orthographic projection on the above extends along the first direction
  • the center of the orthographic projection of the second anode via on the base substrate is connected to the third anode via and the first
  • the straight connecting line of the center of the orthographic projection of the other one of the four anode vias on the base substrate extends along the first direction.
  • the orthographic projection of the first anode via on the base substrate falls into the orthographic projection of the source of the detection transistor in the first sub-pixel drive circuit on the base substrate In; the orthographic projection of the second anode via on the base substrate falls within the orthographic projection of the third capacitor electrode of the storage capacitor in the second sub-pixel drive circuit on the base substrate, And in the second direction, the orthographic projection of the source of the detection transistor in the second sub-pixel driving circuit on the base substrate and the source of the driving transistor in the second sub-pixel driving circuit are located at all Between the orthographic projections on the base substrate, the orthographic projection of the third anode via on the base substrate falls into the third capacitor electrode of the storage capacitor in the third sub-pixel drive circuit.
  • the orthographic projection of the source of the detection transistor on the base substrate and the third sub-pixel drive is between the orthographic projections on the base substrate; the orthographic projection of the fourth anode via on the base substrate falls into the detection of the fourth sub-pixel driving circuit
  • the source of the transistor is in the orthographic projection on the base substrate.
  • each sub-pixel driving circuit further includes a capacitor via, and the third capacitor electrode of the storage capacitor is electrically connected to the first capacitor electrode through the capacitor via.
  • the capacitor via in the first sub-pixel driving circuit, is located on the side of the first anode via close to the storage capacitor, and is located between the first anode via and the storage capacitor. Between the storage capacitors, the straight line connecting the center of the orthographic projection of the capacitor via on the base substrate and the center of the orthographic projection of the first anode via on the base substrate is along the second Extending in the direction, the orthographic projection of the capacitor via on the base substrate and the orthographic projection of the first anode via on the base substrate both fall into the orthographic projection of the first anode on the base substrate In; in the second sub-pixel driving circuit, the capacitor via is located on the side of the second anode via near the detection transistor, and the capacitor via is in the orthographic projection of the base substrate The straight line connecting the center and the center of the orthographic projection of the second anode via on the base substrate extends along the second direction, and the orthographic projection of the capacitor via on the base substrate and the first The orthographic projections of the two anode via
  • the line extends along the second direction, and the orthographic projection of the capacitor via on the base substrate and the orthographic projection of the third anode via on the base substrate both fall into the third anode.
  • the capacitor via is located on the side of the fourth anode via close to the storage capacitor, and is located on the fourth anode via
  • the straight line connecting the center of the orthographic projection of the capacitor via on the base substrate and the center of the orthographic projection of the fourth anode via on the base substrate Extending in the second direction, the orthographic projection of the capacitor via on the base substrate and the orthographic projection of the fourth anode via on the base substrate both fall into the fourth anode.
  • the orthographic projection on the base substrate In the orthographic projection on the base substrate.
  • each sub-pixel driving circuit further includes a source via
  • the detection transistor of each sub-pixel driving circuit further includes an active layer
  • the source of the detection transistor is connected to the active layer through the source via.
  • Layer wherein the orthographic projection of the source via in the first sub-pixel driving circuit on the base substrate falls within the orthographic projection of the first anode via on the base substrate, so The orthographic projection of the source via in the fourth sub-pixel driving circuit on the base substrate falls within the orthographic projection of the fourth anode via on the base substrate.
  • the display panel further includes: a pixel defining layer, the pixel defining layer has: a first opening for accommodating the light-emitting material layer of the first light-emitting element; a second opening for accommodating the light-emitting material layer of the first light-emitting element; The light-emitting material layer of the second light-emitting element; a third opening for accommodating the light-emitting material layer of the third light-emitting element; and a fourth opening for accommodating the light-emitting material layer of the fourth light-emitting element,
  • the orthographic projection of the first opening on the base substrate falls within the orthographic projection of the first anode on the base substrate
  • the orthographic projection of the second opening on the base substrate The projection falls within the orthographic projection of the second anode on the base substrate
  • the orthographic projection of the third opening on the base substrate falls within the orthographic projection of the third anode on the base substrate.
  • the orthographic projection of the fourth opening on the base substrate falls
  • the orthographic projection of the first opening on the base substrate and the orthographic projection of the first anode via on the base substrate do not overlap, and the first opening is on the base substrate.
  • the orthographic projection on the base substrate and the orthographic projection of the capacitor via of the first sub-pixel drive circuit on the base substrate do not overlap;
  • the orthographic projection of the second opening on the base substrate It does not overlap with the orthographic projection of the second anode via on the base substrate, and the orthographic projection of the second opening on the base substrate is the same as the capacitor via of the second sub-pixel drive circuit
  • the orthographic projection on the base substrate does not overlap; the orthographic projection of the third opening on the base substrate and the orthographic projection of the third anode via on the base substrate do not overlap ,
  • the orthographic projection of the third opening on the base substrate and the orthographic projection of the capacitor via of the third sub-pixel drive circuit on the base substrate do not overlap;
  • the orthographic projection on the base substrate and the orthographic projection of the fourth anode via on the base substrate do not
  • the first anode, the second anode, the third anode, and the fourth anode are arranged in a 2 ⁇ 2 matrix, wherein the first anode and the second anode are arranged along the line
  • the second direction is arranged side by side
  • the third anode and the fourth anode are arranged side by side in the second direction.
  • the pixel has a light-transmitting area and a display area arranged side by side in a first direction, and the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel The sub-pixels are located in the display area.
  • the second direction is perpendicular to the first direction.
  • the display panel is an OLED display panel.
  • Some embodiments of the present disclosure provide an electronic device including the display panel described in the foregoing embodiments.
  • FIG. 1 is a schematic plan view of a transparent display panel according to some embodiments of the present disclosure
  • Fig. 2 is an enlarged schematic diagram of area A in Fig. 1;
  • FIG. 3 is a schematic diagram of a cross-sectional structure of a display area of a single pixel of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 4 is a schematic diagram of a planar structure of a single pixel of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 5 is a circuit diagram of a single sub-pixel according to some embodiments of the present disclosure.
  • FIG. 6 is a schematic plan view of a single pixel after the pattern of the first metal layer is formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure
  • Fig. 7 is a schematic cross-sectional structure view along the line A-A in Fig. 6;
  • FIG. 8 is a schematic plan view of a single pixel after a pattern of an active material layer is formed in the manufacturing process of a transparent display panel according to some embodiments of the present disclosure
  • Fig. 9 is a schematic cross-sectional structure view along the line A-A in Fig. 8;
  • FIG. 10 is a schematic plan view of a single pixel after the pattern of the second metal layer is formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure
  • Fig. 11 is a schematic cross-sectional structure view along the line A-A in Fig. 10;
  • FIG. 12 is a schematic plan view of a single pixel after the pattern of the third insulating layer is formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure
  • Fig. 13 is a schematic cross-sectional structure view along the line A-A in Fig. 12;
  • Fig. 14 is a schematic cross-sectional structure view along the line A-A in Fig. 4;
  • FIG. 15 is a schematic plan view of a single pixel after the patterns of the fourth insulating layer and the planarization layer are formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure
  • Fig. 16 is a schematic cross-sectional structure view along the line A-A in Fig. 15;
  • 17 is a schematic plan view of a single pixel after the pattern of the anode layer is formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure
  • Fig. 18 is a schematic cross-sectional structure view along the line A-A in Fig. 17;
  • 19 is a schematic plan view of a single pixel after forming patterns of a pixel defining layer, a light emitting material layer, a cathode, and an encapsulation layer pattern in a transparent display panel according to some embodiments of the present disclosure during the manufacturing process;
  • FIG. 20 is a schematic cross-sectional structure diagram along the line A-A in FIG. 19;
  • 21 is a schematic diagram of the distribution of anodes in a single pixel according to a comparative example of the present disclosure
  • FIG. 22 is a schematic diagram of the distribution of anodes of a single pixel of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 23 is a schematic diagram of the distribution of anodes of a single pixel of a transparent display panel according to some embodiments of the present disclosure.
  • FIG. 24 is a schematic diagram of the distribution of anodes of a single pixel of a transparent display panel according to some embodiments of the present disclosure.
  • first, second, etc. may be used herein to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.
  • first element may be named as the second element, and similarly, the second element may be named as the first element.
  • second element may be named as the first element.
  • the term "and/or" as used herein includes any and all combinations of one or more of the related listed items.
  • the expressions “located on the same layer” and “disposed on the same layer” generally mean that the first component and the second component can use the same material and can be formed by the same patterning process.
  • the expressions “located on different layers” and “different layer settings” generally mean that the first part and the second part are formed by different patterning processes.
  • pixel generally refers to the pixel structure
  • sub-pixel generally refers to the sub-pixel structure
  • the transparent display panels are all OLED display panels as examples. Those skilled in the art can understand that the transparent display panels can also be other types of display panels, such as PLED display panels, quantum dot display panels, etc. .
  • FIG. 1 shows a schematic plan view of a transparent display panel according to some embodiments of the present disclosure.
  • the transparent display panel 100 includes a base substrate 10 and a plurality of pixels arranged on the base substrate 10 and arranged in arrangement. P.
  • the row direction of the pixel array is, for example, the first direction X
  • the column direction is, for example, the second direction Y
  • the first direction X and the second direction Y cross each other, for example, perpendicular.
  • FIG. 2 is an enlarged schematic diagram of the area A in FIG. 1, and only four pixels P are shown in FIG. 2.
  • each pixel P includes a light-transmitting area TA and a display area DA.
  • the light-transmitting area TA and the display area DA are arranged side by side along the first direction.
  • the light-transmitting area TA and the display area DA are arranged left and right in each pixel P, and the light-transmitting area TA is located on the left side of the display area DA.
  • the light-transmitting area TA may be located on the right side of the display area DA.
  • the light-transmitting area TA may be located on the right side of the display area DA in a part of the pixels. On the left, in another part of the pixels, the light-transmitting area TA is located on the right side of the display area DA.
  • FIG. 3 shows a schematic cross-sectional structure diagram of the display area of a pixel according to some embodiments of the present disclosure.
  • the fourth insulating layer 90 may be omitted.
  • the base substrate 10 and the package cover 170 are made of, for example, a glass material with good light-transmitting properties.
  • the first insulating layer 30 is, for example, a buffer layer, which may also be referred to as the buffer layer 30 herein, and the second insulating layer 50 is, for example, a gate.
  • the insulating layer may also be referred to as the gate insulating layer 50 in the text.
  • the third insulating layer 70 is, for example, an interlayer dielectric layer, and may also be referred to herein as an interlayer dielectric layer 70.
  • the fourth insulating layer 90 is, for example, a passivation layer.
  • the passivation layer may also be referred to as the passivation layer 90 herein.
  • the fifth insulating layer 110 is, for example, a planarization layer, and may also be referred to as a planarization layer 110 herein.
  • the planarization layer 110 is formed of, for example, an organic material such as resin, and the pixel defining layer 130 is also formed of an organic material.
  • the passivation layer 90 may not be provided.
  • FIG. 3 schematically shows the cross-sectional layer structure of a single sub-pixel in the pixel display area, which is only used to indicate the layers in the display area, and does not reflect the specific positions of the layers in the plan view.
  • a single sub-pixel includes a driving transistor DT
  • the first metal layer 20 includes a shielding layer 21
  • the active material layer 40 includes an active layer 41 of the driving transistor DT.
  • the shielding layer can be used to shield the driving transistor.
  • the active layer 41 of the transistor DT prevents external light from entering the active layer 41 of the driving transistor DT and adversely affects the display of the sub-pixels.
  • the second metal layer 60 includes the gate 61 of the driving transistor DT
  • the third metal layer 80 includes the first electrode 81 of the driving transistor DT, for example, the drain, and the second electrode 82, for example, the source.
  • the first electrode layer 120 is, for example, an anode layer, which is also referred to herein as the anode layer 120, and includes the anode of the light-emitting element D in the sub-pixel.
  • the second electrode layer 150 is, for example, a cathode layer, which is also referred to herein as the cathode layer 150, and includes the cathode of the light-emitting element D in the sub-pixel.
  • the encapsulation layer 160 may include a first inorganic layer 161, an organic layer 162, and a second inorganic layer 163 that are sequentially stacked along a direction perpendicular to the base substrate 10.
  • the color film layer CF and the black matrix BM may be pre-formed on the cover plate 170, and then the cover plate 170 having the color film layer CF and the black matrix BM is combined with the encapsulation layer 160 on the base substrate 10.
  • the display substrates are aligned and bonded to form the transparent display panel 100.
  • the color filter layer CF may be disposed on the display substrate including the base substrate 10, for example, directly disposed on the encapsulation layer 160 or on the planarization layer.
  • the cover plate 170 is aligned and attached to the display substrate to form a transparent display panel 100.
  • the black matrix BM can also be replaced by overlapping color film layers CF of different colors.
  • the luminescent material layer 140 is formed by evaporation on the entire surface, as shown in FIG. Color display.
  • the luminescent material layer 140 may be formed in the opening area of the pixel defining layer 130 by printing, and the sub-pixels of different colors may be printed with the luminescent material layer 140 emitting different colors of light.
  • the color The film layer CF can be omitted, and even the cover plate 170 and the black matrix can also be omitted.
  • the first metal layer 20, the second metal layer 60, the third metal layer 80, the anode layer 120, the planarization layer 110, the pixel defining layer 130, and the black matrix that do not transmit light or have a poor light transmission effect At least one of the BM and the color film layer CF is not arranged in the light-transmitting area TA, for example, none of the above-mentioned layers are arranged in the light-transmitting area TA to ensure the transparency effect of the light-transmitting area TA.
  • FIG. 4 is an enlarged schematic diagram of area B in FIG. 2, showing a schematic diagram of the planar structure of the display area of a single pixel according to some embodiments of the present disclosure.
  • the display area DA of the pixel P includes four sub-pixels, namely the first A sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel.
  • the four sub-pixels may be a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, respectively.
  • each sub-pixel includes a sub-pixel drive circuit and a light-emitting element D located on the sub-pixel drive circuit, and the light-emitting elements of the four sub-pixels can be adjusted in shape and arrangement according to actual needs, as long as it is guaranteed
  • the sub-pixel driving circuit of each sub-pixel can drive its corresponding light-emitting element D.
  • the pixel defining layer is used to define the position and shape of the light emitting area of the light emitting element.
  • the light emitting material layer of the light emitting element is arranged in the opening of the pixel defining layer.
  • the opening position and shape of the pixel defining layer can be adjusted according to actual needs.
  • the shape adjusts the position and shape of the light-emitting material layer of the organic light-emitting element.
  • FIG. 4 does not show the light-emitting element of each sub-pixel and the pixel defining layer surrounding each light-emitting element.
  • Mainly shows the sub-pixel driving circuit of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, namely the first sub-pixel driving circuit SPC1, the second sub-pixel driving circuit SPC2, and the third sub-pixel
  • the driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4 as shown in FIG.
  • the first sub-pixel driving circuit SPC1, the second sub-pixel driving circuit SPC2, the third sub-pixel driving circuit SPC3, and the fourth sub-pixel driving circuit SPC4 are all Extending along the second direction Y, and arranged side by side in the first direction X in the pixel P, the first sub-pixel driving circuit SPC1, the second sub-pixel driving circuit SPC2, the third sub-pixel driving circuit SPC3, and the fourth sub-pixel driving The circuit SPC4 constitutes a pixel drive circuit of the pixel P. Therefore, FIG. 4 can also be taken as a schematic structural diagram of a pixel driving circuit of a single pixel according to some embodiments of the present disclosure.
  • the first sub-pixel driving circuit SPC1, the second sub-pixel driving circuit SPC2, the third sub-pixel driving circuit SPC3, and the fourth sub-pixel driving circuit SPC4 are sequentially arranged away from the light-transmitting area TA of the pixel P.
  • a pixel structure with four sub-pixels is used as an example.
  • a single pixel may have other numbers of sub-pixels, for example, three, that is, red sub-pixels, Green sub-pixel and blue sub-pixel.
  • FIG. 5 is a circuit diagram of a single sub-pixel according to an embodiment of the present disclosure.
  • the single pixel P in the embodiment of the present disclosure will be explained below with reference to FIG. 4 and FIG. 5.
  • each pixel P corresponds to one first gate line GL1, one second gate line GL2, one first power line VDDL, one second power line VSSL, one detection line SL, and four data lines DL.
  • each of the first sub-pixel driving circuit SPC1, the second sub-pixel driving circuit SPC2, the third sub-pixel driving circuit SPC3, and the fourth sub-pixel driving circuit SPC4 includes a first transistor T1 (also known as It is a switching transistor T1), a second transistor T2 (also referred to as a driving transistor T2), a third transistor T3 (also referred to as a detecting transistor T3), and a storage capacitor Cst.
  • the first gate line GL1 provides the first control signal G1 for each sub-pixel driving circuit
  • the second gate line GL2 provides the second control signal G2 for each sub-pixel
  • the first data line DL1, the second data line DL2, and the third data line DL3 and the fourth data line DL4 respectively provide data signals Data for the first sub-pixel driving circuit SPC1, the second sub-pixel driving circuit SPC2, the third sub-pixel driving circuit SPC3, and the fourth sub-pixel driving circuit SPC4.
  • the first power line VDDL A constant first voltage signal, such as a VDD voltage signal, is provided for each sub-pixel driving circuit
  • the second power line VSSL provides a constant second voltage signal, such as a VSS voltage signal, for each sub-pixel driving circuit.
  • the detection line SL is used to provide a reset signal to each pixel drive circuit, and is used to sample and detect the electrical characteristics of each sub-pixel drive circuit, such as the threshold voltage of the second transistor T2, so as to achieve external compensation and obtain a better display effect.
  • each sub-pixel driving circuit includes a switching transistor T1, a driving transistor T2, a detection transistor T3, and a storage capacitor Cst.
  • the driving transistor T2 is the driving transistor DT in FIG. 3, the gate of the switching transistor T1 receives the first control signal G1 provided by the first gate line GL1, and the first electrode of the switching transistor T1, for example, the drain, receives the The data line DL provides a data signal Data.
  • the second electrode of the switching transistor T1, for example, the source electrode is electrically connected to the second capacitor electrode CstE2 of the storage capacitor Cst and the gate electrode of the driving transistor T2, and the three are electrically connected at the first node G.
  • the switching transistor T1 is configured to write the data signal Data to the gate of the driving transistor T2 and the storage capacitor Cst in response to the first control signal G1.
  • the first electrode of the driving transistor T2 is electrically connected to the first power supply line VDDL through the first power supply connection line VDDLS, and receives the first voltage signal provided by the first power supply line VDDL, for example, a VDD voltage signal, and drives
  • the second electrode of the transistor T2, for example, the source electrode is electrically connected to the second capacitor electrode CstE2 of the storage capacitor Cst, and is configured to be electrically connected to the anode of the light-emitting element D.
  • the driving transistor T2 is configured to be connected to the gate of the driving transistor T2.
  • the current for driving the light-emitting element D is controlled under the control of the voltage.
  • the gate of the detecting transistor T3 receives the second control signal G2 provided by the second gate line GL2, the first electrode of the detecting transistor T3, for example, the source, and the second electrode of the driving transistor T2 and the first capacitor electrode of the storage capacitor Cst CstE1 is electrically connected, and the three are electrically connected at the second node S.
  • the second electrode of the detection transistor T3, for example, the drain, is electrically connected to the detection line SL through the detection connection line SLS, and the reset signal is obtained from the detection line SL and sent to
  • the detection line SL provides a sampling detection signal SEN
  • the detection transistor T3 is configured to detect the electrical characteristics of the sub-pixel driving circuit to which it belongs in response to the second control signal G2 to achieve external compensation; the electrical characteristics include, for example, the threshold voltage and/or the switching transistor T1 Carrier mobility, or the threshold voltage and drive current of the light-emitting element.
  • the anode of the light-emitting element D is electrically connected with the second electrode of the driving transistor T2, for example, the source electrode, and the cathode of the light-emitting element D is electrically connected with the second power line VSSL, for example, through a through hole, to receive a VSS voltage signal.
  • the light-emitting element D realizes light emission based on the current flowing therethrough, and the luminous intensity is determined by the intensity of the current flowing through the light-emitting element D.
  • the storage capacitor Cst may include a third capacitor electrode CstE3 electrically connected to the first capacitor electrode CstE1.
  • the first capacitor electrode CstE1, the second capacitor electrode CstE2, and the third capacitor electrode CstE2 are sequentially stacked on the base substrate 10.
  • the first capacitor electrode CstE1 and the second capacitor electrode CstE2 have an overlapping area, and the first capacitor electrode CstE1 and the second capacitor electrode CstE2 constitute a first capacitor.
  • the third capacitor electrode CstE3 and the second capacitor electrode CstE2 have an overlapping area.
  • the third capacitor electrode CstE3 and the second capacitor electrode CstE2 form a second capacitor.
  • the storage capacitor Cst can be regarded as the parallel connection of the first capacitor and the second capacitor. This increases the capacitance of the storage capacitor Cst.
  • the transistors used in the embodiments of the present disclosure may all be thin film transistors, field effect transistors, or other switching devices with the same characteristics.
  • thin film transistors are used as examples for description.
  • the source and drain of the transistor used here can be symmetrical in structure, so the source and drain of the transistor can be structurally indistinguishable.
  • one pole is directly described as the first pole and the other pole is the second pole.
  • transistors can be divided into N-type and P-type transistors according to their characteristics.
  • the turn-on voltage is a low-level voltage (for example, 0V, -5V, -10V or other suitable voltages), and the turn-off voltage is a high-level voltage (for example, 5V, 10V or other suitable voltages) );
  • the turn-on voltage is a high-level voltage (for example, 5V, 10V or other suitable voltage)
  • the turn-off voltage is a low-level voltage (for example, 0V, -5V, -10V or other suitable Voltage).
  • the line GL1 and the second gate line GL2 are respectively arranged on both sides of the light-transmitting area TA, that is, the light-transmitting area TA is sandwiched between the first gate line GL1 and the second gate line GL2.
  • the first gate line The GL1 and the second gate line GL2 can also pass through the light-transmitting area TA.
  • the area corresponding to a single pixel P that is, in the range shown in FIG.
  • the first power line VDDL, the second power line VSSL, the detection line SL, and the four data lines DL all extend along the second direction Y, for example, in a linear shape.
  • the detection line SL is located between the second sub-pixel driving circuit SPC2 and the third sub-pixel driving circuit SPC3.
  • the first data line DL1 and the second data line DL2 are arranged between the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, and the first data line DL1 is closer to the first sub-pixel than the second data line DL2 Driving circuit SPC1, the second data line DL2 is closer to the second sub-pixel driving circuit SPC2 than the first data line DL1, that is, the first data line DL1 is located between the first sub-pixel driving circuit SPC1 and the second data line DL2 , The second data line DL2 is located between the first data line DL1 and the second sub-pixel driving circuit SPC2.
  • the third data line DL3 and the fourth data line DL4 are arranged between the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4, and the third data line DL3 is closer to the third sub-pixel than the fourth data line DL4
  • the driving circuit SPC3, the fourth data line DL4 is closer to the fourth sub-pixel driving circuit SPC4 than the third data line DL3, that is, the third data line DL3 is located between the third sub-pixel driving circuit SPC3 and the fourth data line DL4
  • the fourth data line DL4 is located between the third data line DL3 and the fourth sub-pixel driving circuit SPC4.
  • the second power line VSSL is located on the side of the first sub-pixel driving circuit SPC1 away from the first data line DL1, that is, between the light-transmitting area TA and the first sub-pixel driving circuit SPC1, and the first power line VDDL is located in the fourth sub-pixel driving circuit.
  • the circuit SPC4 is far away from the side of the fourth data line DL4.
  • the structure of the first sub-pixel drive circuit SPC1 and the structure of the fourth sub-pixel drive circuit SPC4 are mirror-symmetrical with respect to the detection line SL
  • the structure of the second sub-pixel drive circuit SPC2 is the same as that of the third sub-pixel drive circuit SPC3.
  • the structure is mirror-symmetrical with respect to the detection line SL.
  • a single pixel P includes a display area DA and a light-transmitting area TA.
  • the display area DA is provided with a first sub-pixel driving circuit SPC1, a second sub-pixel driving circuit SPC2, and a third sub-pixel driving circuit SPC3 that are sequentially arranged away from the light-transmitting area TA.
  • the pixel driving circuit of each sub-pixel includes a first transistor T1, a second transistor T2, a third transistor T3, and a storage capacitor Cst.
  • FIG. 6 is a schematic plan view of a single pixel after the pattern of the first metal layer is formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure
  • FIG. 7 is a schematic view of the cross-sectional structure along the line A-A in FIG. 6.
  • the cutting position indicated by the line AA in FIG. 6 is the same as the cutting position indicated by the line AA in other subsequent drawings.
  • FIGS. 6 and 7 first, in the base substrate A pattern of the first metal layer 20 is formed on the substrate 10, specifically, a first metal film is deposited on the base substrate 10, and the first metal film is patterned through a patterning process to form the pattern of the first metal layer 20 on the base substrate 10.
  • the pattern of the first metal layer 20 includes a shielding layer 21 and a detection connection line SLS.
  • Each sub-pixel driving circuit includes a shielding layer 21.
  • the detection connection line SLS spans four sub-pixel driving circuits and extends along the first direction X. Strip structure.
  • the detection connection line SLS is configured to connect to the detection line SL formed subsequently, so that the detection line SL provides a reset signal to each sub-pixel driving circuit, and is used to sample and detect the electrical characteristics of each sub-pixel driving circuit, such as the threshold voltage of the second transistor T2, To achieve external compensation.
  • the shielding layer 21 has a long rectangular shape and extends along the second direction Y.
  • the shielding layer 21 is configured to perform light shielding treatment on the channels of each transistor formed subsequently, reduce the intensity of light irradiated on the transistors, and reduce leakage current, thereby reducing the influence of light on the characteristics of the transistors.
  • the middle part of the shielding layer 21 (encircled by a dashed frame) serves as a capacitor electrode of the first capacitor, that is, the first capacitor electrode CstE1, which is configured to form a first capacitor with the second capacitor electrode CstE2 formed subsequently.
  • the length of the shielding layer 21 is greater than the distance between the gate of the switching transistor T1 and the gate of the detecting transistor T3 formed later.
  • the length of the shielding layer 21 is greater than the distance between the drain of the switching transistor T1 and the drain of the third transistor T3 to be formed later. 4 and 6, the pattern of the first metal layer 20 in the first sub-pixel driving circuit SPC1 and the pattern of the first metal layer 20 in the fourth sub-pixel driving circuit SPC4 are relative to the detection line SL that is subsequently formed. Mirror symmetry. The pattern of the first metal layer 20 in the second sub-pixel driving circuit SPC2 and the pattern of the first metal layer 20 in the third sub-pixel driving circuit SPC3 are mirror-symmetrical with respect to the subsequently formed detection line SL. After the current patterning process, the shielding layer 21 and the detection connection line SLS are formed in the display area DA, and the first metal layer is not provided in the light-transmitting area TA.
  • FIG. 8 is a schematic plan view of a single pixel after a pattern of an active material layer is formed in the manufacturing process of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 9 is a schematic view of a cross-sectional structure along A-A in FIG. 8. Then, as shown in FIGS. 8 and 9, a pattern of the active material layer 40 is formed. Specifically, a first insulating film and an active material film are sequentially deposited on the base substrate 10 formed with the aforementioned pattern, for example, a metal oxide film.
  • the active material film is patterned through a patterning process to form the first insulating layer 30 covering the pattern of the first metal layer 20, and the pattern of the active material layer 40 formed on the first insulating layer 30 is active
  • the material layer 40 includes the active layer of the switching transistor T1 arranged in each sub-pixel driving circuit, also called the first active layer T1a, the active layer of the driving transistor T2, also called the second active layer T2a, the detection
  • the active layer of the transistor T3 is also referred to as the third active layer T3a and the second capacitor electrode CstE2.
  • the first capacitor electrode CstE1 and the second capacitor electrode CstE2 form a first capacitor.
  • the orthographic projection of the first active layer T1a, the second active layer T2a, and the third active layer T3a on the base substrate 10 and the orthographic projection of the shielding layer 21 on the base substrate 10 intersect.
  • the overlapped area enables the shielding layer 21 to shield the channel area of the switching transistor T1, the driving transistor T2 and the detecting transistor T3, to prevent light from affecting the channel, and to prevent the channel from generating photo-generated leakage current and affecting the display effect.
  • any two of the first active layer T1a, the second active layer T2a, the third active layer T3a, and the second capacitor electrode CstE2 are arranged at intervals, that is, the orthographic projection of the first active layer T1a on the base substrate 10 , The orthographic projection of the second active layer T2a on the base substrate 10, the orthographic projection of the third active layer T3a on the base substrate 10, and the orthographic projection of the second capacitor electrode CstE2 on the base substrate 10.
  • There is no overlapping area between them which is beneficial to design the channel width-to-length ratio of the switching transistor T1, the driving transistor T2, and the detecting transistor T3 according to related requirements.
  • a spacer region 42 is provided between the second capacitor electrode CstE2 and the third active layer T3a in the first sub-pixel driving circuit SPC1 and the fourth sub-pixel driving circuit SPC4.
  • a notch area 43 is provided in the middle of the second capacitor electrode CstE2 of the second sub-pixel driving circuit SPC2 and the third sub-pixel driving circuit SPC3, and there is no active material layer 40 in the spacer area 42 and the notch area 43.
  • the pattern of the active material layer 40 in the first sub-pixel driving circuit SPC1 and the pattern of the active material layer 40 in the fourth sub-pixel driving circuit SPC4 are opposite to each other.
  • the subsequently formed detection line SL is mirror-symmetrical.
  • the pattern of the active material layer 40 in the second sub-pixel driving circuit SPC2 and the pattern of the active material layer 40 in the third sub-pixel driving circuit SPC3 are relative to the subsequently formed detection line SL. Mirror symmetry. After this patterning process, the pattern of the active material layer 40 is formed in the display area DA but not in the light-transmitting area TA.
  • the light-transmitting area TA includes the base substrate 10 and the first insulating layer 30 disposed on the base substrate 10. .
  • FIG. 10 is a schematic plan view of a single pixel after the pattern of the second metal layer is formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure
  • FIG. 11 is a schematic view of the cross-sectional structure along the line A-A in FIG. 10.
  • the pattern of the second metal layer 60 is then formed, including: sequentially depositing a second insulating film and a second metal film on the base substrate 10 formed with the aforementioned pattern, and performing a patterning process on the second insulating film and the second metal film.
  • the insulating film and the second metal film are patterned to form a pattern of the second insulating layer 50 and a pattern of the second metal layer 60 disposed on the second insulating layer 50.
  • the pattern of the second insulating layer 50 is the same as The pattern of the second metal layer 60 is formed using the same mask, and both have the same pattern.
  • the pattern of the second metal layer 60 includes forming a first gate line GL1, a second gate line GL2, a first power connection line VDDLS, a first auxiliary line 62, and a second auxiliary line 63 corresponding to each pixel P in each pixel P.
  • the gate of the switching transistor T1 in each sub-pixel driving circuit is also called the first gate T1g, the gate of the driving transistor T2, also called the second gate T2g, and the gate of the detection transistor T3, also called the third gate. Gate T3g.
  • the pattern of the second metal layer 60 also includes a first gate connection line 64 and a second gate connection line 65 formed in each sub-pixel driving circuit.
  • a first gate connection line 64 and a second gate connection line 65 formed in each sub-pixel driving circuit.
  • One gate line GL1 is located on the lower side of the light-transmitting area TA
  • the second gate line GL2 is located on the upper side of the light-transmitting area TA. That is, the light-transmitting area TA is sandwiched between the first gate line GL1 and the second gate line GL2.
  • Each sub-pixel driving circuit is also sandwiched between the first gate line GL1 and the second gate line GL2.
  • the first gate T1g extends in the first direction X, straddles the first active layer T1a, and is electrically connected to the first gate line GL1 through the first gate connection line 64 extending in the second direction Y.
  • the first gate electrode T1g includes a connecting end portion T1g1 and a free end portion T1g2, and the first gate connecting line 64 includes a first end portion 641 and a second end portion 642.
  • the first end 641 of the first gate connection line 64 is electrically connected to the first gate line GL1, and the second end 642 of the first gate connection line 64 is electrically connected to the connection end T1g1 of the first gate T1g.
  • the first gate T1g1, the first gate connection line 64, and the first gate line GL1 are an integral structure.
  • the second gate T2g extends along the first direction X, straddles the second active layer T2a, and has an overlapping area with the second capacitor electrode CstE2.
  • the third gate T3g extends in the first direction X, straddles the third active layer T3a, and is electrically connected to the second gate line GL2 through the second gate connection line 65 extending in the second direction Y.
  • the third gate electrode T3g includes a connecting end portion T3g1 and a free end portion T3g2, and the second gate electrode connecting line 65 includes a first end portion 651 and a second end portion 652.
  • the first end 651 of the second gate connection line 65 is electrically connected to the second gate line GL2, and the second end 652 of the second gate connection line 65 is electrically connected to the connection end T3g1 of the third gate T3g.
  • the third gate T3g, the second gate connection line 65, and the second gate line GL2 are an integral structure.
  • the first auxiliary line 62 is formed in the area where the second power line VSSL is located, extends along the second direction Y, and is configured to be electrically connected to the second power line VSSL to be formed later. Therefore, the second power line VSSL to be formed later is arranged in parallel with the first auxiliary line 62 through the via hole, thereby effectively reducing the impedance of the second power line VSSL.
  • the first auxiliary line 62 is located between the first gate T1g and the third gate T3g. Those skilled in the art can understand that the first auxiliary line 62 is not necessary, and in some embodiments, the first auxiliary line 62 may be omitted.
  • the second auxiliary line 63 is formed in the area where the first power line VDDL is located, extends in the second direction Y, and is configured to be electrically connected to the first power line VDDL formed subsequently. Therefore, the first power line VDDL to be formed later is arranged in parallel with the second auxiliary line 63 through the via hole, thereby effectively reducing the impedance of the first power line VDDL.
  • the second auxiliary line 63 is located between the first gate T1g and the third gate T3g. Those skilled in the art can understand that the second auxiliary line 63 is not necessary, and in some embodiments, the second auxiliary line 63 may be omitted.
  • the first power supply connection line VDDLS extends along the first direction X, spans the four sub-pixel driving circuits, and is configured to be electrically connected to the first power supply line VDDL to be formed later.
  • the first power connection line VDDLS may be electrically connected to the second auxiliary line 63, and the two are, for example, an integrated structure.
  • the pattern of the second insulating layer 50 is the same as the pattern of the second metal layer 60, that is, the second insulating layer 50 is located under the second metal layer 60, and there is no second insulating layer in the area outside the second metal layer 60 50. As shown in FIG. 11, the pattern of the second insulating layer 50 is the same as the pattern of the second metal layer 60, that is, the second insulating layer 50 is located under the second metal layer 60, and there is no second insulating layer in the area outside the second metal layer 60 50. As shown in FIG.
  • the pattern of the second metal layer in the first sub-pixel driving circuit SPC1 and the pattern of the second metal layer in the fourth sub-pixel driving circuit SPC4 are relative to the subsequently formed detection
  • the line SL is mirror-symmetrical, and the pattern of the second metal layer in the second sub-pixel driving circuit SPC2 and the pattern of the second metal layer in the third sub-pixel driving circuit SPC3 are mirror-symmetric with respect to the detection line SL formed subsequently.
  • this process also includes conductive treatment.
  • Conduction treatment is to use the pattern of the second metal layer 60 including the first gate T1g, the second gate T2g and the third gate T3g as a shield to perform plasma treatment after the pattern of the second metal layer 60 is formed.
  • the first gate T1g, the second gate T2g, and the third gate T3g block the active material layer 40 in the region (that is, the active material layer 40 and the first gate T1g, the second gate T2g and the third gate T3g Overlapping regions) respectively serve as channel regions of the transistors.
  • the active material layer 40 in the area not shielded by the second metal layer 60 is conductive, forming a conductive second capacitor electrode CstE2 and a conductive source/drain region.
  • the light-transmitting area TA includes the base substrate 10 and the first insulating layer disposed on the base substrate 10. 30.
  • FIG. 12 is a schematic plan view of a single pixel after the pattern of the third insulating layer is formed in the manufacturing process of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 13 is a schematic view of the cross-sectional structure along the line A-A in FIG. 12. As shown in FIGS. 12 and 13, the pattern of the third insulating layer 70 is then formed.
  • Forming the pattern of the third insulating layer 70 includes: depositing a third insulating film on the base substrate 10 formed with the aforementioned pattern, and patterning the third insulating film through a patterning process to form a third insulating layer 70 covering the aforementioned structure Pattern, the third insulating layer 70 is provided with a plurality of via holes, the plurality of via holes include: a first via hole V1 and a second via hole V2 located on both sides of the first gate T1g, located on both sides of the second gate T2g.
  • the third insulating layer 70 in the first via hole V1 and the second via hole V2 is etched away, exposing the surfaces at both ends of the first active layer T1a.
  • the third via hole V3 is provided at the junction of the first power connection line VDDLS and the second active layer T2a, the third insulating layer 70 in the third via hole V3 is etched away, and the second active layer T2a is exposed at the same time
  • the surface of the first power connection line VDDLS, the third insulating layer 70 in the fourth via hole V4 is etched away, exposing the surface of the second active layer T2a.
  • the third insulating layer 70 in the fifth via hole V5 and the sixth via hole V6 is etched away, exposing the surfaces at both ends of the third active layer T3a.
  • the seventh via V7 is located at the position where the detection connection line SLS overlaps with the subsequently formed detection line SL.
  • Each sub-pixel driving circuit forms an eighth via V8.
  • the seventh via V7 and the first in the eighth via V8 The insulating layer 30 and the third insulating layer 70 are etched away, exposing the surface of the detection connection line SLS.
  • the ninth via hole V9 is located at the junction of the second gate electrode T2g and the second capacitor electrode CstE2.
  • the third insulating layer 70 in the ninth via hole V9 is etched away, exposing the surface of the second gate electrode T2g and the second gate electrode CstE2.
  • the orthographic projection of the tenth via V10 in the first sub-pixel driving circuit SPC1 and the fourth sub-pixel driving circuit SPC4 on the base substrate 10 is located in the space area 42 between the second capacitor electrode CstE2 and the third active layer T3a
  • the orthographic projection of the tenth via V10 in the second sub-pixel drive circuit SPC2 and the third sub-pixel drive circuit SPC3 on the base substrate is located in the recess in the middle of the second capacitor electrode CstE2.
  • the port area 43 is in an orthographic projection on the base substrate 10.
  • the first insulating layer 30 and the third insulating layer 70 in the tenth via V10 are etched away, exposing the surface of the shielding layer 21.
  • the third insulating layer 70 in the fourteenth via V14 is etched away, exposing the first insulating layer 30.
  • the fourteenth via V14 is designed for process symmetry and is only formed in the second sub-pixel driving circuit SPC2 and the third sub-pixel driving circuit SPC3, and its orthographic projection on the base substrate 10 is located on the second capacitor electrode
  • the notch area 43 in the middle of CstE2 is in the orthographic projection on the base substrate 10, and does not exist in the first sub-pixel driving circuit SPC1 and the fourth sub-pixel driving circuit SPC4.
  • the thirteenth via hole V13 for connecting the anode is formed in each sub-pixel driving circuit.
  • the thirteenth via hole V13 formed subsequently covers the sixth via hole V6 that only penetrates the third insulating layer 70 to form a sleeve hole.
  • the subsequent thirteenth via V13 is located at the notch area 43 and close to the tenth via V10.
  • the position of the thirteenth via V13 in the second sub-pixel driving circuit SPC2 and the third sub-pixel driving circuit SPC3 is similar to the sixth via in the first sub-pixel driving circuit SPC1 and the fourth sub-pixel driving circuit SPC4.
  • the fourteenth via V14 of V6 makes the thirteenth via V13 formed subsequently cover the fourteenth via V14 to form a sleeve hole.
  • the fourteenth via V14 is not necessary, and in some embodiments, the fourteenth via may not be provided.
  • the eleventh via hole V11 is located on the first auxiliary line 62, that is, the orthographic projection of the plurality of eleventh via holes V11 on the base substrate 10 falls within the orthographic projection of the first auxiliary line 62 on the base substrate 10.
  • a plurality of eleventh via holes V11 are arranged at intervals, and the third insulating layer 70 in the eleventh via hole V11 is etched away, exposing the surface of the first auxiliary line 62.
  • the plurality of twelfth vias V12 are located on the second auxiliary line 63, and the orthographic projection of the plurality of twelfth vias V12 on the base substrate 10 falls within the orthographic projection of the second auxiliary line 63 on the base substrate 10. .
  • a plurality of twelfth via holes V12 are arranged at intervals, and the third insulating layer 70 in the twelfth via hole V12 is etched away, exposing the surface of the second auxiliary line 63. After this patterning process, multiple via patterns are formed in the display area DA, and the light-transmitting area TA includes the first insulating layer 30 and the third insulating layer 70 stacked on the base substrate 10.
  • FIG. 4 is a schematic plan view of a single pixel after a pattern of a third metal layer is formed in the manufacturing process of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 14 is a schematic view of a cross-sectional structure along the line A-A in FIG. 4.
  • the pattern of the third metal layer 80 is then formed. Specifically, a third metal film is deposited on the base substrate with the aforementioned pattern, and the third metal film is patterned through a patterning process. A third metal layer pattern is formed on the third insulating layer 70.
  • the third metal layer 80 includes: a first power line VDDL, a second power line VSSL, a detection line SL, and four data lines DL corresponding to each pixel P, and the source and the source of the switching transistor T1 formed in each sub-pixel
  • the drain also known as the first source T1s and the first drain T1d, the source and drain of the driving transistor T2, also known as the second source T2s and the second drain T2d, the source and the detection transistor T3
  • the drain also referred to as the third source T3s and the third drain T3d, and the third capacitor electrode CstE3.
  • FIG. 14 is a schematic cross-sectional view along the line AA in FIG. 4. As shown in FIGS.
  • the first drain electrode T1d and the first source electrode T1s are electrically connected to the conductors of the first active layer T1a located on both sides of the first gate electrode T1g through the first via hole V1 and the second via hole V2, respectively.
  • the end of the morphology forms a switching transistor T1.
  • the second drain electrode T2d and the second source electrode T2s are electrically connected to the conductive ends of the second active layer T2a located on both sides of the second gate electrode T2g through the third via hole V3 and the fourth via hole V4, respectively, to form a driving transistor T2, meanwhile, the second drain electrode T2d is also electrically connected to the first power connection line VDDLS through the third via V3.
  • the third drain electrode T3d and the third source electrode T3s are electrically connected to the conductive ends of the third active layer T3a located on both sides of the third gate electrode T3g through the fifth via hole V5 and the sixth via hole V6, respectively, to form a detection transistor T3.
  • the third drain electrode T3d is also electrically connected to the detection connection line SLS through the eighth via hole V8, and the detection line SL is electrically connected to the detection connection line SLS through the seventh via hole, thereby enabling the detection line to be detected by each sub-pixel drive circuit.
  • the drain T3d of the transistor T3 is electrically connected.
  • the first source electrode T1s is also electrically connected to the second gate electrode T2g and the second capacitor electrode CstE2 through the ninth via hole V9, and the ninth via hole V9 can be understood as the first node G in FIG. 5.
  • the third capacitor electrode CstE3 is electrically connected to the shielding layer 21 through the tenth via V10, and fills the fourteenth via V14.
  • the third capacitor electrode CstE3 is electrically connected to the second source electrode T2s and the third source electrode T3s, and may be an integral structure.
  • the second power line VSSL is electrically connected to the first auxiliary line 62 through a plurality of eleventh via holes V11 to reduce the transmission resistance of the second power line VSSL.
  • the first power line VDDL is electrically connected to the second auxiliary line 63 through a plurality of twelfth vias V12, the transmission resistance of the first power line VDDL is reduced, and the VDD voltage signal is transmitted through the first power connection line through the second auxiliary line 63 VDDLS is transferred to the second drain T2d of the driving transistor T2. As shown in FIG.
  • the pattern of the third metal layer 80 in the first sub-pixel driving circuit SPC1 and the pattern of the third metal layer 80 in the fourth sub-pixel driving circuit SPC4 are mirror-symmetrical with respect to the subsequently formed detection line SL
  • the pattern of the third metal layer 80 in the second sub-pixel driving circuit SPC2 and the pattern of the third metal layer 80 in the third sub-pixel driving circuit SPC3 are mirror-symmetrical with respect to the subsequently formed detection line SL.
  • the light-transmitting area TA includes the base substrate 10 and the first insulating layer 30 disposed on the base substrate 10. , Third insulating layer 70.
  • FIG. 15 is a schematic diagram of a planar structure of a single pixel after patterns of a fourth insulating layer and a planarization layer are formed in the manufacturing process of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 16 is a schematic diagram of a cross-sectional structure along A-A in FIG. 15.
  • FIGS. 15 and 16 patterns of the fourth insulating layer 90 and the planarization layer 110 are formed.
  • a fourth insulating film is deposited on the base substrate 10 on which the aforementioned pattern is formed.
  • the patterning process of the four insulating films forms the pattern of the fourth insulating layer 90, and the pattern of the fourth insulating layer 90 has a via hole in each sub-pixel driving circuit.
  • a planarization film is coated on the base substrate 10 on which the pattern of the fourth insulating layer 90 is formed, and the patterning of the planarization layer 110 is formed by patterning the planarization film, such as exposure, development, and etching.
  • the pattern of the layer 110 is only arranged in the display area DA of the pixel P, not in the light-transmitting area TA.
  • the pattern of the planarization layer 110 also has a via hole in each sub-pixel driving circuit.
  • each sub-pixel driving circuit The via hole of the planarization layer 110 is aligned with the via hole of the fourth insulating layer 90, and the two form a thirteenth via hole V13 that penetrates the planarization layer 110 and the fourth insulating layer 90, and the size of the thirteenth via hole V13 is obvious Larger than other vias.
  • the thirteenth via V13 is located at the position where the source T3s of the detection transistor T3 is located.
  • the thirteenth via V13 covers the sixth via V6, that is, the orthographic projection of the sixth via V6 on the base substrate 10 falls within the orthographic projection of the thirteenth via V13 on the base substrate 10. Therefore, the layout space can be saved, and the opening area of the pixel defining layer to be formed later can be as large as possible.
  • the fourth insulating layer 90 and the planarization layer 110 in the thirteenth via hole V13 are etched away, exposing the surface of the source electrode T3s of the detecting transistor T3.
  • the thirteenth via hole V13 is located at the position of the opening 43 of the second capacitor electrode CstE2, adjacent to the tenth via hole V10, in some embodiments .
  • the thirteenth via V13 covers the fourteenth via V14, that is, the orthographic projection of the fourteenth via V14 on the base substrate 10 falls within the orthographic projection of the thirteenth via V13 on the base substrate 10.
  • the fourth insulating layer 90 and the planarization layer 110 in the thirteenth via hole V13 are etched away, exposing the surface of the third capacitor electrode CstE3.
  • the thirteenth via V13 is adjacent to the tenth via V10, and the two are aligned in the second direction Y, that is, the center of the thirteenth via V13 and the tenth via V10
  • the straight line connecting the center is parallel to the second direction Y.
  • the thirteenth via V13 is closer to the second gate line GL2 than the tenth via V10, and in the second sub-pixel driving circuit SPC2 and the In the three sub-pixel driving circuit SPC3, the thirteenth via V13 is farther away from the second gate line GL2 than the tenth via V10.
  • the tenth via V10 of each sub-pixel driving circuit should be shielded by the fourth insulating layer 90 and the planarization layer 110, but in order to clearly reflect the difference between the tenth via V10 and the thirteenth via V13
  • the tenth via V10 of each sub-pixel driving circuit is shown in a dotted pattern in FIG. 15.
  • the patterns of the fourth insulating layer 90 and the planarization layer 110 in the first sub-pixel drive circuit SPC1 are opposite to the patterns of the fourth insulating layer 90 and the planarization layer 110 in the fourth sub-pixel drive circuit SPC4.
  • the pattern of the fourth insulating layer 90 and the planarization layer 110 in the second sub-pixel driving circuit SPC2 is mirror-symmetrical to the subsequently formed detection line SL, and the pattern of the fourth insulating layer 90 and the planarization layer in the third sub-pixel driving circuit SPC3
  • the pattern of 110 is mirror-symmetrical with respect to the subsequently formed detection line SL.
  • the light-transmitting area TA includes a first insulating layer 30, a third insulating layer 70, and a fourth insulating layer 90 stacked on the base substrate 10.
  • FIG. 17 is a schematic plan view of a single pixel after a pattern of an anode layer is formed during a manufacturing process of a transparent display panel according to some embodiments of the present disclosure
  • FIG. 18 is a schematic view of a cross-sectional structure along the line A-A in FIG. 17.
  • a pattern of the anode layer 120 is formed.
  • a transparent conductive film such as ITO and IZO, is deposited on the base substrate with the aforementioned pattern, and the transparent conductive film is patterned through a patterning process, and the pattern of the anode layer 120 is formed on the planarization layer 110.
  • the layer 120 includes at least the anode 1200 of the light-emitting element D of each sub-pixel, that is, the first anode 1201 of the first light-emitting element of the first sub-pixel, the second anode 1202 of the second light-emitting element of the second sub-pixel, and the third sub-pixel.
  • the source electrode T2s of the driving transistor T2, the source electrode T3s of the detection transistor T3, and the third capacitance electrode CstE3 in each sub-pixel driving circuit are an integral structure connected to each other.
  • the anode 1200 is electrically connected to the integrated structure through the thirteenth via V13 (also referred to as anode via V13 in this document) in the corresponding sub-pixel driving circuit, thereby realizing the anode 1200 of each sub-pixel.
  • the thirteenth via V13 of each sub-pixel driving circuit should be shielded by the anode 1200, but in order to clearly show the thirteenth via V13
  • the thirteenth via V13 of each sub-pixel driving circuit is shown in a dotted pattern in FIG. 17.
  • each anode 1200 are all located in the display area DA, and each anode 1200 may be a quadrilateral, such as a rectangle, a diamond, a square, or the like. In other embodiments, each anode 1200 may have other shapes, such as a circle, a polygon, and so on.
  • the four anodes 1200 are arranged in a 2 ⁇ 2 matrix in the display area DA.
  • the first anode 1201 is located at the upper left and passes through the thirteenth via V13 of the first sub-pixel driving circuit SPC1 and the detection transistor T3 of the first sub-pixel driving circuit SPC1.
  • the source electrode T3s is electrically connected, and the second anode 1202 is located at the bottom left, and is electrically connected to the third capacitor electrode CstE3 of the second sub-pixel driving circuit SPC2 through the thirteenth via V13 of the second sub-pixel driving circuit SPC2, and the third anode 1203 Located at the bottom right, it is electrically connected to the third capacitor electrode CstE3 of the third sub-pixel driving circuit SPC3 through the thirteenth via V13 of the third sub-pixel driving circuit SPC3, and the fourth anode 1204 is located at the top right and is driven by the fourth sub-pixel
  • the thirteenth via V13 of the circuit SPC4 is electrically connected to the source electrode T3s of the detection transistor T3 of the fourth sub-pixel driving circuit SPC4.
  • the arrangement of the anodes 1200 in the display area DA can be adjusted according to actual needs, which is not specifically limited in the present disclosure.
  • the anode layer 120 is usually not arranged in the light-transmitting area TA to ensure the light transmittance of the light-transmitting area TA. After the current patterning process, the film structure of the light-transmitting area TA is unchanged.
  • FIG. 19 is a schematic plan view of a single pixel after the pixel defining layer, the luminescent material layer, the cathode, and the encapsulation layer pattern are formed in the manufacturing process of the transparent display panel according to some embodiments of the present disclosure.
  • FIG. 20 is a diagram along the line AA in FIG. 19 Schematic diagram of the cross-sectional structure.
  • Figure 19 omits the pixel defining layer, luminescent material layer, cathode and encapsulation layer patterns, and only shows the opening of the pixel defining layer.
  • the pixel defining layer, luminescent material layer, cathode and encapsulating layer are shown in the figure. Reflected in 20.
  • the pixel defining layer, the luminescent material layer, the cathode and the encapsulation layer patterns are formed.
  • the pixel defining film layer is coated on the base substrate 10 formed with the aforementioned pattern, and the pattern is masked, exposed and developed.
  • the process forms the pattern of the pixel defining layer 130.
  • the pixel defining layer 130 has an opening 1300 corresponding to the anode 1200 of each sub-pixel, namely corresponding to the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204, respectively. Opening 1301, second opening 1302, third opening 1303, and fourth opening 1304.
  • the first opening 1301, the second opening 1302, the third opening 1303, and the fourth opening 1304 respectively define the light-emitting regions of the first light-emitting element, the second light-emitting element, the third light-emitting element, and the fourth light-emitting element.
  • the orthographic projection of each opening 1300 on the base substrate 10 falls within the orthographic projection of its corresponding anode 1200 on the base substrate, and each opening 1300 exposes a part of its corresponding anode 1200.
  • a luminescent material layer 140 is formed in the aforementioned opening 1300, and the luminescent material layer 140 is electrically connected to the corresponding anode 1200.
  • the cathode layer 150 includes at least the cathode of the light-emitting element D of each sub-pixel.
  • the cathode layer 150 is electrically connected to the light-emitting material layer 140 and the second power line VSSL, respectively.
  • the cathode of the light-emitting element D of each sub-pixel is an integrated structure.
  • the cathodes of the light-emitting element D of each sub-pixel of the plurality of pixels P are formed integrally.
  • the cathode layer 150 may be electrically connected to the second power line VSSL in various ways, such as laser drilling.
  • the light-transmitting area TA may include a base substrate 10 and a first insulating layer 30, a third insulating layer 70, a fourth insulating layer 90, and a cathode layer disposed on the base substrate 10.
  • the first insulating layer 30, the third insulating layer 70, the fourth insulating layer 90, the cathode layer 150 and the encapsulation layer 160 in the light-transmitting area TA are not necessary.
  • the above-mentioned layers in the light-transmitting area TA may be removed according to actual needs.
  • the pixel structure of the transparent display panel has been basically completed. 4-20, for a pixel P, in the display area DA of the pixel P, the first sub-pixel driving circuit SPC1, the second sub-pixel driving circuit SPC2, the third sub-pixel driving circuit SPC3, and the fourth sub-pixel driving circuit SPC3
  • the pixel driving circuits SPC4 are sequentially arranged in a first direction X parallel to the base substrate 10, and all extend in a second direction Y perpendicular to the first direction X.
  • the detection transistor T3, the storage capacitor Cst, and the switching transistor T1 is sequentially arranged along the second direction Y, and the detection transistor T3 and the switching transistor T1 are respectively located on both sides of the storage capacitor Cst.
  • the first gate line GL1 is located on the side of the switching transistor T1 away from the storage capacitor Cst, and the second gate line GL2 is located on the side of the detection transistor T3 away from the storage capacitor Cst.
  • the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 are arranged in a 2 ⁇ 2 matrix in the display area DA. Specifically, the first anode 1201 is located at the upper left position of the 2 ⁇ 2 matrix arrangement, and the orthographic projection of the first anode 1201 on the base substrate 10 at least covers the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2.
  • the orthographic projection of the detection transistor T3 on the base substrate 10 and covers the orthographic projection of the portion of the storage capacitor Cst in the first sub-pixel drive circuit SPC1 and the second sub-pixel drive circuit SPC2 close to the detection transistor T3 on the base substrate 10 , That is, covering the orthographic projection of the first part Cst1 of the storage capacitor Cst in the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2 on the base substrate 10.
  • the second anode 1202 is located at the lower left position of the 2 ⁇ 2 matrix arrangement, and the orthographic projection of the second anode 1202 on the base substrate 10 covers at least the switching transistor T1 in the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2 Orthographic projection on the base substrate 10, and covering the first sub-pixel drive circuit SPC1 and the second sub-pixel drive circuit SPC2 of the storage capacitor Cst near the switching transistor T1 on the base substrate 10, that is, cover An orthographic projection of the second portion Cst2 of the storage capacitor Cst in the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2 on the base substrate 10.
  • the third anode 1203 is located at the lower right position of the 2 ⁇ 2 matrix arrangement, and the orthographic projection of the second anode 1202 on the base substrate 10 covers at least the switching transistor T1 in the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4 Orthographic projection on the base substrate 10 and covering the part of the storage capacitor Cst in the third sub-pixel drive circuit SPC3 and the fourth sub-pixel drive circuit SPC4 close to the switching transistor T1 on the base substrate 10, that is, cover An orthographic projection of the second portion Cst2 of the storage capacitor Cst in the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4 on the base substrate 10.
  • the fourth anode 1204 is located at the upper right position of the 2 ⁇ 2 matrix arrangement, and the orthographic projection of the fourth anode 1204 on the base substrate 10 covers at least the detection transistor T3 in the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4 Orthographic projection on the base substrate 10, and covering the third sub-pixel drive circuit SPC3 and the fourth sub-pixel drive circuit SPC4 of the storage capacitor Cst near the detection transistor T3 on the base substrate 10, that is, cover An orthographic projection of the first portion Cst1 of the storage capacitor Cst in the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4 on the base substrate 10.
  • the anodes 1200' of the light-emitting elements of the four sub-pixels basically only cover their corresponding sub-pixel driving circuits, and the anodes 1200' of each light-emitting element basically extend in the second direction.
  • the narrow and long strip shape results in that each light emitting element also has a long and narrow strip shape extending in the second direction Y, and is sequentially arranged along the first direction X in the display area DA.
  • the width of the single display area DA along the first direction X is narrow, for example, the width of the light emitting area of each light emitting element along the first direction is very small, making the manufacturing process difficult Increased, it is easy to cause cross-color display of each light-emitting element.
  • the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 all cover the width of two sub-pixel driving circuits on the substrate in the first direction X.
  • the first to fourth light-emitting elements where the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 are located have a wider width in the first direction X, which is easy to manufacture, and can reduce or avoid the display of each light-emitting element.
  • the problem of cross-color is described in manufacture.
  • first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 shown in FIG. The positional relationship between the gate line GL2, the data line DL, the detection line SL, the first power line VDDL, the second power line VSSL, etc., is only for illustration. Those skilled in the art can design the size and shape of each anode 1200 according to actual needs.
  • each of the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 may cover at least a part of the above-mentioned wiring adjacent to it, as long as the first anode 1201, the second anode 1201, and the second anode 1204 There is no overlap or contact between any two of the anode 1202, the third anode 1203, and the fourth anode 1204.
  • the driving transistor T2 in each sub-pixel driving circuit, includes a source T2s, a gate T2g, and a drain T2d that are sequentially away from the storage capacitor Cst in the second direction Y.
  • the transistor T3 includes a source T3s, a gate T3g, and a drain T3d that are sequentially away from the storage capacitor Cst in the second direction.
  • the storage capacitor Cst includes a first capacitor electrode CstE1 and a second capacitor electrode CstE2 that are sequentially stacked on the base substrate 10 And a third capacitor electrode CstE3, where the orthographic projection of the first capacitor electrode CstE1 on the base substrate 10 and the orthographic projection of the second capacitor electrode CstE2 on the base substrate 10 have an overlapping area, and the two form the first capacitor, and the third There is an overlap area between the orthographic projection of the capacitor electrode CstE3 on the base substrate 10 and the orthographic projection of the second capacitor electrode CstE2 on the base substrate 10, and the two form a second capacitor.
  • the first capacitor electrode CstE1 and the third capacitor electrode CstE3 pass The tenth via V10 (also referred to as a capacitor via in this document) is electrically connected.
  • the storage capacitor Cst can be considered as the parallel connection of the first capacitor and the second capacitor. Compared with the storage capacitor with only two capacitor electrodes, the storage capacitor Cst can be Increase the capacity of the storage capacitor.
  • each sub-pixel driving circuit the source T2s of the driving transistor T2, the third capacitor electrode CstE3, and the source T3s of the detecting transistor T3 are connected to each other into an integrated structure, which are all located on the third metal layer 80 (also referred to herein as In the source and drain metal layer 80).
  • the anode 1200 is electrically connected to the above-mentioned structure through a thirteenth via V13 (also referred to herein as an anode via V13) penetrating the fourth insulating layer 90 and the planarization layer 110, so as to realize the sub-pixel driving circuit to the corresponding light-emitting element Drive.
  • the anode via V13 in each sub-pixel driving circuit is covered by the corresponding anode 1200.
  • the anode via hole V13 of the first sub-pixel drive circuit SPC1 needs to be located at the first sub-pixel drive circuit SPC1.
  • a sub-pixel driving circuit SPC1 is close to the second gate line GL2 and is covered by the first anode 1201.
  • the anode via V13 of the second sub-pixel driving circuit SPC2 needs to be located in the second sub-pixel driving circuit SPC2 close to the first gate line GL1 and The part covered by the second anode 1202, the anode via V13 of the third sub-pixel driving circuit SPC3 needs to be located in the part of the third sub-pixel driving circuit SPC3 close to the first gate line GL1 and covered by the third anode 1203, the fourth sub-pixel
  • the anode via hole V13 of the driving circuit SPC4 needs to be located at a part of the fourth sub-pixel driving circuit SPC4 close to the second gate line GL2 and covered by the fourth anode 1204.
  • the anode via V13 (hereinafter also referred to as the anode via V13 in the first sub-pixel driving circuit SPC1 is the first anode via, denoted as V131)
  • the orthographic projection on the base substrate 10 falls within the orthographic projection of the source electrode T3s of the detection transistor T3 on the base substrate 10.
  • the first anode 1201 is electrically connected to the source of the detection transistor T3 through the first anode via V131
  • the electrode T3s, the source electrode T3s of the detection transistor T3 is electrically connected to the active layer T3a through the sixth via V6 (also referred to herein as the source via V6), and the larger-sized first anode via V131 is stacked on the source
  • a sleeve hole is formed above the pole via V6, and the orthographic projection of the source via V6 on the base substrate 10 falls within the orthographic projection of the first anode via V131 on the base substrate 10.
  • the anode via V13 (hereinafter also referred to as the second anode via V13 in the second sub-pixel driving circuit SPC2 is the second anode via, denoted as V132) is the orthographic projection on the base substrate 10 Falling into the orthographic projection of the third capacitor electrode CstE3 on the base substrate 10, the second anode 1202 is electrically connected to the third capacitor electrode CstE3 of the storage capacitor Cst through the second anode via V132.
  • the positive projection of the anode via hole V13 (hereinafter also referred to as the third anode via hole in the third sub-pixel drive circuit SPC3 as the third anode via hole, denoted as V13) on the base substrate 10 Falling into the orthographic projection of the third capacitor electrode CstE3 on the base substrate 10, the third anode 1203 is electrically connected to the third capacitor electrode CstE3 of the storage capacitor Cst through the third anode via V133.
  • the positive projection of the anode via hole V13 (hereinafter also referred to as the anode via hole V13 in the fourth sub-pixel driving circuit SPC4 as the fourth anode via hole, denoted as V134) on the base substrate 10
  • the fourth anode 1204 is electrically connected to the source electrode T3s of the detecting transistor T3 through the fourth anode via V134, and the source electrode T3s of the detecting transistor T3 passes through
  • the sixth via hole V6 (herein also referred to as the source via hole V6) is electrically connected to the active layer T3a, the larger size of the fourth anode via hole V134 is stacked on the source via hole V6 to form a sleeve hole, and the source
  • the orthographic projection of the via hole V6 on the base substrate 10 falls within the orthographic projection of the fourth anode via V134 on the base substrate 10.
  • the shapes and sizes of the first anode via V131, the second anode via V132, the third anode via V133, and the fourth anode via V134 are substantially the same.
  • the straight line connecting the center of the orthographic projection of the first anode via V131 on the base substrate 10 and the center of the orthographic projection of the fourth anode via V134 on the base substrate extends along the first direction X, that is, the first
  • the distance from an anode via V131 to the second gate line GL2 is substantially equal to the distance from the fourth anode via V134 to the second gate line GL2.
  • the straight line connecting the center of the orthographic projection of the second anode via V132 on the base substrate 10 and the center of the orthographic projection of the third anode via V133 on the base substrate extends along the first direction X, that is, the first
  • the distance from the second anode via V132 to the first gate line GL1 is substantially equal to the distance from the third anode via V133 to the first gate line GL1, thereby ensuring process uniformity.
  • the anode via hole V13 penetrates through the fourth insulating layer 90 and the planarization layer 110 with a larger thickness. Therefore, the anode via hole V13 generates a large step difference, and the upper surface of the planarization layer 110 near the anode via hole V13 is flat.
  • the capacitor via V10 penetrates the first insulating layer 30 and the third insulating layer 70 and has a larger depth. Compared with a via that only passes through a single insulating layer, it will produce a larger step difference, even though the capacitance is too high.
  • the hole V10 is covered by the planarization layer 110, but the planarity of the planarization layer 110 at the capacitor via V10 is also poor.
  • each light-emitting element needs to be formed on the portion of the flat layer 110 with good flatness to ensure good light-emitting uniformity of the light-emitting element. Therefore, it is necessary to avoid the anode via hole V13 and the capacitor via hole V10 when forming the subsequent opening 1300 of the pixel defining layer 130, as shown in FIG. 19. Therefore, in order to facilitate the design of the opening 1300 and maximize the opening 1300 as much as possible, in each sub-pixel driving circuit, the anode via V13 and the capacitor via V10 are both adjacent.
  • both the anode via V13 and the capacitor via V10 are adjacent to each other, for example, they may be sequentially arranged along the extension direction of the sub-pixel driving circuit, that is, the second direction Y.
  • the anode via hole V13 and the capacitor via hole V10 are adjacent, and the two are aligned in the second direction Y, that is, the center of the anode via hole V13 and the center of the capacitor via hole V10 are connected in a straight line.
  • the line is parallel to the second direction Y.
  • each opening 1300 of the pixel defining layer 130 is shown in FIG. 19, and the positions of the anode via hole V13 and the capacitor via hole V10 are marked with a dotted pattern. As shown in FIG. 19, the anode via hole V13 and the capacitor via hole V10 are both covered by the pixel defining layer 130 and the anode layer 120.
  • the first opening 1301 defines the light-emitting area of the first light-emitting element of the first sub-pixel
  • the orthographic projection of the first opening 1301 on the base substrate 10 falls within the orthographic projection of the first anode 1201 on the base substrate 10
  • An opening 1301 avoids the anode via hole V13 and the capacitor via hole V10 in the first sub-pixel driving circuit SPC1, that is, the orthographic projection of the first opening 1301 on the base substrate 10 and the anode via hole in the first sub-pixel driving circuit SPC1
  • the orthographic projections of V13 and the capacitor via V10 on the base substrate 10 do not overlap.
  • the second opening 1302 defines the light-emitting area of the second light-emitting element of the second sub-pixel
  • the orthographic projection of the second opening 1302 on the base substrate 10 falls within the orthographic projection of the second anode 1202 on the base substrate 10
  • the two openings 1301 avoid the anode via V13 and the capacitor via V10 in the second sub-pixel drive circuit SPC2, that is, the orthographic projection of the second opening 1302 on the base substrate 10 and the anode in the second sub-pixel drive circuit SPC2 pass
  • the orthographic projections of the hole V13 and the capacitor via V10 on the base substrate 10 do not overlap.
  • the third opening 1303 defines the light-emitting area of the third light-emitting element of the third sub-pixel.
  • the orthographic projection of the third opening 1303 on the base substrate 10 falls within the orthographic projection of the third anode 1203 on the base substrate 10, and
  • the three openings 1303 avoid the anode via V13 and the capacitor via V10 in the third sub-pixel drive circuit SPC3, that is, the orthographic projection of the third opening 1303 on the base substrate 10 and the anode in the third sub-pixel drive circuit SPC3 pass.
  • the orthographic projections of the hole V13 and the capacitor via V10 on the base substrate 10 do not overlap.
  • the fourth opening 1304 defines the light-emitting area of the fourth light-emitting element of the fourth sub-pixel, the orthographic projection of the fourth opening 1304 on the base substrate 10 falls within the orthographic projection of the fourth anode 1204 on the base substrate 10, and
  • the four openings 1304 avoid the anode via V13 and the capacitor via V10 in the fourth sub-pixel drive circuit SPC4, that is, the orthographic projection of the fourth opening 1304 on the base substrate 10 and the anode in the fourth sub-pixel drive circuit SPC4 pass.
  • the orthographic projections of the hole V13 and the capacitor via V10 on the base substrate 10 do not overlap.
  • the anode via hole V13 is usually larger in area and deep in depth. Therefore, in layout design, the opening 1300 should not be too close to the anode via hole V13, otherwise it is easy to cause the opening 1300 and the via hole.
  • the pixel defining layer between V13 collapses. Therefore, the distance between the opening 1300 and the via hole V13 is kept as large as possible, for example, greater than a predetermined distance. In some embodiments, as shown in FIG.
  • the anode via hole V13 and the capacitor via hole V10 are adjacent, and the two are aligned in the second direction Y, and the center of the anode via hole V13 and the capacitor
  • the connection line of the via hole V10 is parallel to the second direction Y.
  • the anode via V13 is closer to the second gate line GL2 than the tenth via V10
  • the anode via hole V13 is farther away from the second gate line GL2 than the tenth via hole V10.
  • the first opening 1301 can be as close as possible
  • the second opening 1302 maximizes the area of the first opening 1301.
  • the fourth opening 1304 can be as close as possible to the first Three openings 1303 maximize the area of the fourth opening 1304.
  • the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 are arranged in a 2 ⁇ 2 matrix in the display area DA, and the first anode 1201 basically covers The upper half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the second anode 1202 basically covers the lower half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the third anode 1203 basically covers the lower half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4, and the fourth anode 1204 basically covers the upper half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4 ,
  • the first anode via V131 is located in the upper half of the first sub-pixel drive circuit SPC1
  • the second anode via V132 is located in the lower half of the second sub-pixel drive circuit SPC2
  • the four light-emitting elements are easy to manufacture, and the problem of cross-color display of each light-emitting element can be reduced or avoided.
  • the first anode via hole V131 and the fourth anode via hole V134 are aligned in the first direction X, that is, the straight line connecting the center of the first anode via hole 131 and the center of the fourth anode via hole V134 is along the first direction X extension.
  • the second anode via hole V132 and the third anode via hole V133 are aligned in the first direction X, that is, the straight line connecting the center of the second anode via hole 132 and the center of the third anode via hole V133 extends along the first direction X, by This can improve the uniformity of the manufacturing process of the transparent display panel.
  • the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 are arranged in a 2 ⁇ 2 matrix in the display area DA, and the first anode 1201 substantially covers The lower half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the second anode 1202 basically covers the upper half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the third anode 1203 basically covers the lower half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4, and the fourth anode 1204 basically covers the upper half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4
  • the first anode via V131 is located in the lower half of the first sub-pixel driving circuit SPC1
  • the second anode via V132 is located in the upper half of the second sub-pixel driving circuit SPC2
  • the third anode via V133 is
  • the fourth anode via V134 is located in the upper half of the fourth sub-pixel driving circuit SPC4.
  • the four light-emitting elements are easy to manufacture, which can reduce or avoid the problem of cross-color display of each light-emitting element.
  • the first anode via hole V131 and the third anode via hole V133 are in the first It is aligned in the direction X, that is, the straight line connecting the center of the first anode via 131 and the center of the third anode via V133 extends along the first direction X.
  • the second anode via hole V132 and the fourth anode via hole V134 are aligned in the first direction X, that is, the straight line connecting the center of the second anode via hole 132 and the center of the fourth anode via hole V134 extends along the first direction X, by This can improve the uniformity of the manufacturing process of the transparent display panel.
  • the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 are arranged in a 2 ⁇ 2 matrix in the display area DA, and the first anode 1201 substantially covers The lower half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the second anode 1202 basically covers the upper half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the third anode 1203 basically covers the upper half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4, and the fourth anode 1204 basically covers the lower half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4
  • the first anode via V131 is located in the lower half of the first sub-pixel driving circuit SPC1
  • the second anode via V132 is located in the upper half of the second sub-pixel driving circuit SPC2
  • the third anode via V133 is
  • the fourth anode via V134 is located in the lower half of the fourth sub-pixel driving circuit SPC4.
  • the four light-emitting elements are easy to manufacture, which can reduce or avoid the problem of cross-color display of each light-emitting element.
  • the first anode via V131 and the fourth anode via V134 are in the first It is aligned in the direction X, that is, the straight line connecting the center of the first anode via 131 and the center of the fourth anode via V134 extends along the first direction X.
  • the second anode via hole V132 and the third anode via hole V133 are aligned in the first direction X, that is, the straight line connecting the center of the second anode via hole 132 and the center of the third anode via hole V133 extends along the first direction X, by This can improve the uniformity of the manufacturing process of the transparent display panel.
  • the first anode 1201, the second anode 1202, the third anode 1203, and the fourth anode 1204 are arranged in a 2 ⁇ 2 matrix in the display area DA, and the first anode 1201 substantially covers The upper half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the second anode 1202 basically covers the lower half of the first sub-pixel driving circuit SPC1 and the second sub-pixel driving circuit SPC2, the third anode 1203 basically covers the upper half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4, and the fourth anode 1204 basically covers the lower half of the third sub-pixel driving circuit SPC3 and the fourth sub-pixel driving circuit SPC4
  • the first anode via V131 is located in the upper half of the first sub-pixel driving circuit SPC1
  • the second anode via V132 is located in the lower half of the second sub-pixel driving circuit SPC2
  • the third anode via V133 is
  • the four light-emitting elements are easy to manufacture, which can reduce or avoid the problem of cross-color display of each light-emitting element.
  • the first anode via hole V131 and the third anode via hole V133 are in the first It is aligned in the direction X, that is, the straight line connecting the center of the first anode via 131 and the center of the third anode via V133 extends along the first direction X.
  • the second anode via hole V132 and the fourth anode via hole V134 are aligned in the first direction X, that is, the straight line connecting the center of the second anode via hole 132 and the center of the fourth anode via hole V134 extends along the first direction X, by This can improve the uniformity of the manufacturing process of the transparent display panel.
  • the sub-pixel driving circuit when the anode via hole V13 is located in the upper half of the corresponding sub-pixel driving circuit, the sub-pixel driving circuit can adopt the first sub-pixel in FIG. 4-20.
  • the sub-pixel driving circuit can adopt the structure of the second sub-pixel driving circuit SPC2 or the third sub-pixel driving circuit SPC3 in FIGS. 4-20.
  • Some embodiments of the present disclosure provide an electronic device, specifically a transparent electronic device, including the transparent display panel described in any of the foregoing embodiments.
  • the transparent electronic device can be used to see through shop windows, vehicle windows and other products or components with see through and display functions.

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Abstract

一种显示面板和电子装置,所述显示面板,包括:包括:衬底基板;以及设置在所述衬底基板上的像素,其中,所述像素包括第一子像素和第二子像素,所述第一子像素包括第一子像素驱动电路以及由所述第一子像素驱动电路驱动的第一发光元件,所述第二子像素包括第二子像素驱动电路以及由所述第二子像素驱动电路驱动的第二发光元件,所述第一子像素驱动电路和所述第二子像素驱动电路沿平行于衬底基板的第一方向依次顺序排列且均沿第二方向延伸,所述第二方向平行于衬底基板且与第一方向交叉,其中,所述第一发光元件包括与所述第一子像素驱动电路电连接的第一阳极,所述第二发光元件包括与所述第二子像素驱动电路电连接的第二阳极,所述第一阳极和所述第二阳极中的每一个在所述衬底基板上的正投影均部分地覆盖所述第一子像素驱动电路在衬底基板上的正投影和所述第二子像素驱动电路在所述衬底基板上的正投影,所述第一阳极在所述衬底基板上的正投影与所述第二阳极在所述衬底基板上的正投影不交叠。

Description

显示面板和电子装置 技术领域
本公开涉及显示技术领域,尤其涉及一种显示面板和电子装置。
背景技术
透明显示作为一种全新的显示技术,可以让观察者透过显示屏幕看到屏幕后方的背景,这种新颖的显示效果拓宽了显示器的应用领域,因而受到了广泛的关注。
公开内容
本公开一些实施例提供一种显示面板,包括:衬底基板;以及设置在所述衬底基板上的像素,其中,所述像素包括第一子像素和第二子像素,所述第一子像素包括第一子像素驱动电路以及由所述第一子像素驱动电路驱动的第一发光元件,所述第二子像素包括第二子像素驱动电路以及由所述第二子像素驱动电路驱动的第二发光元件,所述第一子像素驱动电路和所述第二子像素驱动电路沿平行于衬底基板的第一方向依次顺序排列且均沿第二方向延伸,所述第二方向平行于衬底基板且与第一方向交叉,其中,所述第一发光元件包括与所述第一子像素驱动电路电连接的第一阳极,所述第二发光元件包括与所述第二子像素驱动电路电连接的第二阳极,所述第一阳极和所述第二阳极中的每一个在所述衬底基板上的正投影均部分地覆盖所述第一子像素驱动电路在衬底基板上的正投影和所述第二子像素驱动电路在所述衬底基板上的正投影,所述第一阳极在所述衬底基板上的正投影与所述第二阳极在所述衬底基板上的正投影不交叠。
在一些实施例中,所述第一子像素驱动电路和所述第二子像素驱动电路均包括检测晶体管、存储电容以及开关晶体管,在所述第二方向上,所述检测晶体管和所述开关晶体管分别位于所述存储电容的两侧,所述第一阳极和所述第二阳极中的一个在所述衬底基板上的正投影至少部分地覆盖所述第一子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且至少部分地覆盖所述第二子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第一阳极和所述第二阳极中的另一个在所述衬底基板上的正投影至少部分地覆盖所述第一子像素驱 动电路中的开关晶体管在所述衬底基板上的正投影且至少部分地覆盖所述第二子像素驱动电路中的开关晶体管在所述衬底基板上的正投影。
在一些实施例中,所述第一阳极和所述第二阳极中的所述一个在所述衬底基板上的正投影覆盖所述第一子像素驱动电路中的存储电容的第一部分在所述衬底基板上的正投影且覆盖所述第二子像素驱动电路中的存储电容的第一部分在所述衬底基板上的正投影,所述第一阳极和第二阳极中的所述另一个在所述衬底基板上的正投影覆盖所述第一子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影且覆盖所述第二子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影,在所述第一子像素驱动电路和所述第二子像素驱动电路每一者中,所述存储电容的第一部分比所述存储电容的第二部分更靠近所述检测晶体管。
在一些实施例中,所述第一阳极和所述第二阳极中的所述一个在所述衬底基板上的正投影完全覆盖所述第一子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且完全覆盖所述第二子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第一阳极和所述第二阳极中的所述另一个在所述衬底基板上的正投影完全覆盖所述第一子像素驱动电路中的开关晶体管在所述衬底基板上的正投影且完全覆盖所述第二子像素驱动电路中的所述开关晶体管在所述衬底基板上的正投影。
在一些实施例中,所述像素还包括第三子像素和第四子像素,所述第三子像素包括第三子像素驱动电路以及由所述第三子像素驱动电路驱动的第三发光元件,所述第四子像素包括第四子像素驱动电路以及由所述第四子像素驱动电路驱动的第四发光元件,所述第一子像素驱动电路、所述第二子像素驱动电路、所述第三子像素驱动电路和所述第四子像素驱动电路沿平行于衬底基板的第一方向依次顺序排列且均沿所述第二方向延伸;
其中,所述第三发光元件包括与所述第三子像素驱动电路电连接的第三阳极,所述第四发光元件包括与所述第四子像素驱动电路电连接的第四阳极,所述第三阳极和所述第四阳极中的每一个在所述衬底基板上的正投影均部分地覆盖所述第三子像素驱动电路在衬底基板上的正投影和所述第四子像素驱动电路在所述衬底基板上的正投影,所述第一阳极、所述第二阳极、所述第三阳极和所述第四阳极在所述衬底基板上的正投影中的任意两者均不交叠。
在一些实施例中,所述第三子像素驱动电路和所述第四子像素驱动电路均包括检测晶体管、存储电容以及开关晶体管,在所述第二方向上,在所述第三子像素驱动电路和所述第四子像素驱动电路的每个子像素驱动电路中,所述检测晶体管和所述开关晶体管分别位于所述存储电容的两侧;其中,所述第三阳极和所述第四阳极中的一个在所述衬底基板上的正投影至少部分地覆盖所述第三子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且至少部分地覆盖第四子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第三阳极和所述第四阳极中的另一个在所述衬底基板上的正投影至少部分地覆盖第三子像素驱动电路中的开关晶体管在所述衬底基板上的正投影且至少部分地覆盖第四子像素驱动电路中的开关晶体管在所述衬底基板上的正投影。
在一些实施例中,所述第三阳极和所述第四阳极中的所述一个在所述衬底基板上的正投影覆盖所述第三子像素驱动电路中的存储电容的第一部分在衬底基板上的正投影且覆盖所述第四子像素驱动电路中的存储电容的第一部分在所述衬底基板上的正投影,所述第三阳极和所述第四阳极中的所述另一个在所述衬底基板上的正投影覆盖所述第三子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影且覆盖所述第四子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影,在所述第三子像素驱动电路和所述第四子像素驱动电路每一者中,所述存储电容的第一部分比所述存储电容的第二部分更靠近所述检测晶体管。
在一些实施例中,所述第三阳极和所述第四阳极中的所述一个在所述衬底基板上的正投影完全覆盖所述第三子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且完全覆盖所述第四子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第三阳极和所述第四阳极中的所述另一个在衬底基板上的正投影完全覆盖所述第三子像素驱动电路中的开关晶体管在所述衬底基板上的正投影且完全覆盖所述第四子像素驱动电路中的开关晶体管在所述衬底基板上的正投影。
在一些实施例中,所述第一子像素驱动电路、所述第二子像素驱动电路、所述第三子像素驱动电路、所述第四子像素驱动电路中的每个子像素驱动电路还包括:驱动晶体管,位于所述存储电容远离所述检测晶体管的一侧,并位于所述存储电容与所述开关晶体管之间,所述驱动晶体管包括在所述第二方向上依次远离 所述存储电容布置的源极、栅极和漏极,所述检测晶体管包括在所述第二方向上依次远离所述存储电容布置的源极、栅极和漏极,所述存储电容包括依次层叠在所述衬底基板上的第一电容电极、第二电容电极以及第三电容电极,所述驱动晶体管的源极、所述第三电容电极以及所述检测晶体管的源极布置于同一层且相互连接为一体结构。
在一些实施例中,所述的显示面板,还包括:源漏金属层,包括各子像素驱动电路中的所述一体结构;阳极层,位于源漏金属层远离所述衬底基板一侧,包括第一阳极、第二阳极、第三阳极和第四阳极,平坦化层,设置在所述源漏金属层的远离所述衬底基板的一侧且设置在所述阳极层的面向所述衬底基板的一侧,其中,所述平坦化层中设有:第一阳极过孔,所述第一阳极通过所述第一阳极过孔电连接至第一子像素驱动电路的所述一体结构;第二阳极过孔,所述第二阳极通过所述第二阳极过孔电连接至第二子像素驱动电路的所述一体结构;第三阳极过孔,所述第三阳极通过所述第三阳极过孔电连接至第三子像素驱动电路的所述一体结构;第四阳极过孔,所述第四阳极通过所述四阳极过孔电连接至第四子像素驱动电路的所述一体结构。
在一些实施例中,所述第一阳极过孔和所述第二阳极过孔中的一个阳极过孔在所述衬底基板上的正投影落入与所述一个阳极过孔电连接的子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内;所述第一阳极过孔和所述第二阳极过孔中的另一个阳极过孔在所述衬底基板上的正投影落入与所述另一个阳极过孔电连接的子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方向上位于与所述另一个阳极过孔电连接的子像素驱动电路中检测晶体管的源极在衬底基板上的正投影和与所述另一个阳极过孔电连接的子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间,所述第三阳极过孔和所述第四阳极过孔中的一个阳极过孔在所述衬底基板上的正投影落入与所述一个阳极过孔电连接的子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内;所述第三阳极过孔和所述第四阳极过孔中的另一个阳极过孔在所述衬底基板上的正投影落入与所述另一个阳极过孔电连接的子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方向上位于与所述另一个阳极过孔电连接的子像素驱动电路中检测晶体管的源极在所述衬底基板上的正投影和与所述另一个阳极过孔电连接 的子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间。
在一些实施例中,所述第一阳极过孔在所述衬底基板上的正投影的中心与所述第三阳极过孔和所述第四阳极过孔中的一个在所述衬底基板上的正投影的中心的直线连接线沿所述第一方向延伸,所述第二阳极过孔的在所述衬底基板上的正投影的中心与所述第三阳极过孔和所述第四阳极过孔中的另一个在所述衬底基板上的正投影的中心的直线连接线沿所述第一方向延伸。
在一些实施例中,所述第一阳极过孔在所述衬底基板上的正投影落入所述第一子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内;所述第二阳极过孔在所述衬底基板上的正投影落入所述第二子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方向上位于所述第二子像素驱动电路中检测晶体管的源极在所述衬底基板上的正投影和所述第二子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间,所述第三阳极过孔在所述衬底基板上的正投影落入所述第三子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方向上位于所述第三子像素驱动电路中检测晶体管的源极在所述衬底基板上的正投影和所述第三子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间;所述第四阳极过孔在所述衬底基板上的正投影落入所述第四子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内。
在一些实施例中,每个子像素驱动电路还包括电容过孔,所述存储电容的第三电容电极通过所述电容过孔与所述第一电容电极电连接。
在一些实施例中,在所述第一子像素驱动电路中,所述电容过孔位于所述第一阳极过孔靠近所述存储电容的一侧,并位于所述第一阳极过孔和所述存储电容之间,所述电容过孔在所述衬底基板上的正投影的中心与所述第一阳极过孔在所述衬底基板上的正投影的中心的直线连线沿第二方向延伸,所述电容过孔在衬底基板上的正投影与第一阳极过孔在所述衬底基板上的正投影均落入所述第一阳极在所述衬底基板上的正投影内;在所述第二子像素驱动电路中,所述电容过孔位于所述第二阳极过孔靠近所述检测晶体管一侧,所述电容过孔在所述衬底基板上的正投影的中心与所述第二阳极过孔在所述衬底基板上的正投影的中心的直线连线沿所述第二方向延伸,所述电容过孔在所述衬底基板上的正投影与第二阳极过孔在所述衬底基板上的正投影均落入第二阳极在衬底基板上的正投影内;在 所述第三子像素驱动电路中,所述电容过孔位于所述第三阳极过孔靠近所述检测晶体管一侧,所述电容过孔在所述衬底基板上的正投影的中心与所述第三阳极过孔在衬底基板上的正投影的中心的直线连线沿所述第二方向延伸,所述电容过孔在所述衬底基板上的正投影与所述第三阳极过孔在所述衬底基板上的正投影均落入第三阳极在所述衬底基板上的正投影内;在所述第四子像素驱动电路中,所述电容过孔位于所述第四阳极过孔靠近存储电容的一侧,并位于所述第四阳极过孔和所述存储电容之间,所述电容过孔在所述衬底基板上的正投影的中心与所述第四阳极过孔在所述衬底基板上的正投影的中心的直线连线沿所述第二方向延伸,所述电容过孔在所述衬底基板上的正投影与所述第四阳极过孔在所述衬底基板上的正投影均落入所述第四阳极在所述衬底基板上的正投影内。
在一些实施例中,每个子像素驱动电路还包括源极过孔,每个子像素驱动电路的检测晶体管还包括有源层,所述检测晶体管的源极通过所述源极过孔连接至有源层,其中,所述第一子像素驱动电路中的源极过孔在所述衬底基板上的正投影落入所述第一阳极过孔在所述衬底基板上的正投影内,所述第四子像素驱动电路中的源极过孔在所述衬底基板上的正投影落入所述第四阳极过孔在所述衬底基板上的正投影内。
在一些实施例中,所述的显示面板还包括:像素界定层,像素界定层具有:第一开口,用于容置所述第一发光元件的发光材料层;第二开口,用于容置所述第二发光元件的发光材料层;第三开口,用于容置所述第三发光元件的发光材料层;以及第四开口,用于容置所述第四发光元件的发光材料层,其中,所述第一开口在所述衬底基板上的正投影落入所述第一阳极在所述衬底基板上的正投影内,所述第二开口在所述衬底基板上的正投影落入所述第二阳极在所述衬底基板上的正投影内,所述第三开口在所述衬底基板上的正投影落入所述第三阳极在所述衬底基板上的正投影内,所述第四开口在所述衬底基板上的正投影落入所述第四阳极在所述衬底基板上的正投影内。
在一些实施例中,所述第一开口在所述衬底基板上的正投影与所述第一阳极过孔在所述衬底基板上的正投影不交叠,所述第一开口在所述衬底基板上的正投影与所述第一子像素驱动电路的电容过孔在所述衬底基板上的正投影不交叠;所述第二开口在所述衬底基板上的正投影与所述第二阳极过孔在所述衬底基板上的正投影不交叠,所述第二开口在所述衬底基板上的正投影与所述第二子像素驱 动电路的电容过孔在所述衬底基板上的正投影不交叠;所述第三开口在所述衬底基板上的正投影与所述第三阳极过孔在所述衬底基板上的正投影不交叠,所述第三开口在所述衬底基板上的正投影与所述第三子像素驱动电路的电容过孔在所述衬底基板上的正投影不交叠;所述第四开口在所述衬底基板上的正投影与所述第四阳极过孔在所述衬底基板上的正投影不交叠,所述第四开口在所述衬底基板上的正投影与所述第四子像素驱动电路的电容过孔在所述衬底基板上的正投影不交叠。
在一些实施例中,所述第一阳极、所述第二阳极、所述第三阳极以及所述第四阳极呈2×2矩阵排列,其中所述第一阳极和所述第二阳极沿所述第二方向并排布置,所述第三阳极和所述第四阳极沿所述第二方向并排布置。
在一些实施例中,所述像素具有沿第一方向并列排布的透光区域和显示区域,所述第一子像素、所述第二子像素、所述第三子像素和所述第四子像素位于所述显示区域。
在一些实施例中,所述第二方向垂直于所述第一方向。
在一些实施例中,所述显示面板为OLED显示面板。
本公开一些实施例提供一种电子装置,包括前述实施例所述的显示面板。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述,本公开的其它特征、目的和优点将会变得更明显:
图1为根据本公开一些实施例的透明显示面板的平面示意图;
图2为图1中区域A的放大示意图;
图3为根据本公开一些实施例的透明显示面板的单个像素的显示区域的截面结构示意图;
图4为根据本公开一些实施例的透明显示面板的单个像素的平面结构示意图;
图5为根据本公开一些实施例的单个子像素的电路图;
图6为根据本公开一些实施例的透明显示面板在制造过程中形成第一金属层的图案后单个像素的平面结构示意图;
图7为图6中沿线A-A的截面结构示意图;
图8为根据本公开一些实施例的透明显示面板在制造过程中形成有源材料层的图案后单个像素的平面结构示意图;
图9为图8中沿线A-A的截面结构示意图;
图10为根据本公开一些实施例的透明显示面板在制造过程中形成第二金属层的图案后单个像素的平面结构示意图;
图11为图10中沿线A-A的截面结构示意图;
图12为根据本公开一些实施例的透明显示面板在制造过程中形成第三绝缘层的图案后单个像素的平面结构示意图;
图13为图12中沿线A-A的截面结构示意图;
图14为图4中沿线A-A的截面结构示意图;
图15为根据本公开一些实施例的透明显示面板在制造过程中形成第四绝缘层和平坦化层的图案后单个像素的平面结构示意图;
图16为图15中沿线A-A的截面结构示意图;
图17为根据本公开一些实施例的透明显示面板在制造过程中形成阳极层的图案后单个像素的平面结构示意图;
图18为图17中沿线A-A的截面结构示意图;
图19为根据本公开一些实施例的透明显示面板在制造过程中形成像素界定层、发光材料层、阴极和封装层图案的图案后单个像素的平面结构示意图;
图20为图19中沿线A-A的截面结构示意图;
图21为根据本公开的比较例的单个像素中各阳极的分布示意图;
图22为根据本公开一些实施例的透明显示面板的单个像素的各阳极的分布示意图;
图23为根据本公开一些实施例的透明显示面板的单个像素的各阳极的分布示意图;以及
图24为根据本公开一些实施例的透明显示面板的单个像素的各阳极的分布示意图。
具体实施方式
下面结合附图和实施例对本公开作进一步的详细说明。可以理解的是,此处所描述的具体实施例仅仅用于解释相关发明,而非对该发明的限定。另外还需要说明的是,为了便于描述,附图中仅示出了与发明相关的部分。
需要说明的是,在不冲突的情况下,本公开中的实施例及实施例中的特征可以相互组合。
另外,在下面的详细描述中,为便于解释,阐述了许多具体的细节以提供对本披露实施例的全面理解。然而明显地,一个或多个实施例在没有这些具体细节的情况下也可以被实施。
应该理解的是,尽管在这里可使用术语第一、第二等来描述不同的元件,但是这些元件不应受这些术语的限制。这些术语仅是用来将一个元件与另一个元件区分开来。例如,在不脱离示例实施例的范围的情况下,第一元件可以被命名为第二元件,类似地,第二元件可以被命名为第一元件。如在这里使用的术语“和/或”包括一个或多个相关所列的项目的任意组合和所有组合。
应该理解的是,当元件或层被称作“形成在”另一元件或层“上”时,该元件或层可以直接地或间接地形成在另一元件或层上。也就是,例如,可以存在中间元件或中间层。相反,当元件或层被称作“直接形成在”另一元件或层“上”时,不存在中间元件或中间层。应当以类似的方式来解释其它用于描述元件或层之间的关系的词语(例如,“在...之间”与“直接在…之间”、“相邻的”与“直接相邻的”等)。
本文中使用的术语仅是为了描述特定实施例的目的,而不意图限制实施例。如本文中所使用的,除非上下文另外明确指出,否则单数形式也意图包括复数形式。还将理解的是,当在此使用术语“包含”和/或“包括”时,说明存在所述特征、整体、步骤、操作、元件和/或组件,但不排除存在或附加一个或多个其它特征、整体、步骤、操作、元件、组件和/或它们的组合。
在本文中,如无特别说明,表述“位于同一层”、“同层设置”一般表示的是:第一部件和第二部件可以使用相同的材料并且可以通过同一构图工艺形成。表述“位于不同层”、“不同层设置”一般表示的是:第一部件和第二部件通过不同构图工艺形成。
在本文中,如无特别说明,表述“像素”一般表述的是像素结构、“子像素”一般表示的是子像素结构。
在本文以下的实施例中,以透明显示面板均为OLED显示面板举例说明,本领技术人员可以理解的是,透明显示面板还可以其他类型的显示面板,例如为PLED显示面板、量子点显示面板等。
本公开一些实施例提供一种显示面板,具体为透明显示面板。图1示出了根据本公开一些实施例的透明显示面板的平面示意图,如图1所示,透明显示面板100包括衬底基板10以及设置在衬底基板10上且陈列排布的多个像素P。像素阵列的行方向例如为第一方向X,列方向例如为第二方向Y,第一方向X与第二方向Y相互交叉,例如垂直。
图2为图1中区域A的放大示意图,图2中仅示出了四个像素P。如图2所示,每个像素P包括一个透光区域TA和一个显示区域DA。在每个像素P中,透光区域TA和显示区域DA沿第一方向并排排列。在本实施例中,如图2所示,在每个像素P中透光区域TA与显示区域DA左右布置,透光区域TA位于显示区域DA的左侧。本领域技术人员可以理解的是,在其他实施例中,透光区域TA可以位于显示区域DA的右侧,在一些实施例中,还可以是在一部分像素中透光区域TA位于显示区域DA的左侧,在另一部分像素中,透光区域TA位于显示区域DA的右侧。
图3示出了根据本公开一些实施例的像素的显示区域的截面结构示意图,如图3所示,在像素P的显示区域DA中,如图3所示,衬底基板10上依次设置有第一金属层20、第一绝缘层30、有源材料层40、第二绝缘层50、第二金属层60、第三绝缘层70、第三金属层80、第四绝缘层90、第五绝缘层110、第一电极层120、像素界定层130、发光材料层140、第二电极层150、封装层160、彩膜层CF、黑矩阵层BM以及封装盖板170。在一些实施例中,第四绝缘层90可以省去。
衬底基板10以及封装盖板170例如采用透光特性良好的玻璃材料制作,第一绝缘层30例如为缓冲层,在本文中亦可以称为缓冲层30,第二绝缘层50例如为栅极绝缘层,在文中亦可以称为栅极绝缘层50,第三绝缘层70例如为层间介电层,在本文中亦可以称为层间介电层70,第四绝缘层90例如为钝化层,在本文中亦可以称为钝化层90。第五绝缘层110例如为平坦化层,在本文中亦可以称为平坦化层110。平坦化层110例如采用树脂等有机材料形成,像素界定层130亦采用有机材料形成。在一些实施例中,由于平坦化层110本身具有绝缘的作用,可以不设置钝化层90。
可以理解的是,图3示意地示出了像素显示区域的单个子像素的截面层结构,仅用于表明显示显示区域具有的各层,并不体现各层在平面视图中的具体位置。
如图3所示,单个子像素包括驱动晶体管DT,第一金属层20包括屏蔽层21,所述有源材料层40包括驱动晶体管DT的有源层41,所述屏蔽层可以用于遮蔽驱动晶体管DT的有源层41,防止外界光线入射至驱动晶体管DT的有源层41,而对子像素的显示造成不良影响。第二金属层60包括驱动晶体管DT的栅极61,第三金属层80包括驱动晶体管DT的第一电极81,例如为漏极,和第二电极82,例如为源极。第一电极层120例如为阳极层,本文中亦称为阳极层120,包括子像素中发光元件D的阳极。第二电极层150例如为阴极层,本文中亦称为阴极层150,包括子像素中发光元件D的阴极。作为示例,封装层160可以包括沿着垂直于衬底基板10的方向依次叠置的第一无机层161、有机层162以及第二无机层163。
在一些实施例中,彩膜层CF和黑矩阵BM可以预先形成在盖板170上,而后将具有彩膜层CF和黑矩阵BM的盖板170与在衬底基板10上形成封装层160后的显示基板对准贴合形成透明显示面板100,在一些替代实施例中,彩膜层CF可以设置在包括衬底基板10的显示基板上,例如直接设置在封装层160上或者位于平坦化层110和第三金属层80之间,而后将盖板170与显示基板对准贴合,形成透明显示面板100。在一些实施例中,黑矩阵BM还可以由不同颜色的叠置的彩膜层CF代替。
在一些实施例中,发光材料层140采用蒸镀方式整面形成,如图3所示,例如发光元件D均发射白光,彩膜层CF在对应不同子像素区域透过不同颜色,由此实现彩色显示。
在一些实施例中,发光材料层140可以采用打印的方式形成在像素界定层130的开口区域中,不同颜色的子像素可以打印发射不同颜色光的发光材料层140,在这种情况下,彩膜层CF可以省略,甚至盖板170及黑矩阵亦可以省略。
在一些实施例中,不透光或者透光效果不好的第一金属层20、第二金属层60、第三金属层80、阳极层120、平坦化层110、像素界定层130、黑矩阵BM、彩膜层CF中的至少一层不设置在透光区域TA中,例如上述各层均不设置在透光区域TA中以保障透光区域TA的透明效果。
以下实施例中详细介绍,透明显示面板中的单个像素结构以及单个像素的像素驱动电路。
图4为图2中区域B的放大示意图,出了根据本公开一些实施例的单个像 素的显示区域的平面结构示意图,如图4所示,像素P的显示区域DA包括四个子像素,即第一子像素、第二子像素、第三子像素以及第四子像素,例如,四个子像素可以分别为红色子像素、绿色子像素、蓝色子像素以及白色子像素。本领域技术人员可以理解的是,每个子像素均包括子像素驱动电路以及位于子像素驱动电路上的发光元件D,且四个子像素的发光元件可以根据实际需要来调整其形状及排列,只要保障每个子像素的子像素驱动电路可以驱动其对应的发光元件D即可。本领域中,像素界定层用于限定出发光元件的发光区域的位置及形状,所述发光元件的发光材料层设置在像素界定层的开口中,可以根据实际需要调整像素界定层的开口位置及形状来调整有机发光元件的发光材料层的位置及形状。
为了清楚的体现各子像素的结构及位置关系,图4中并未示出各子像素的发光元件以及围绕各发光元件的像素界定层。主要示出了第一子像素、第二子像素、第三子像素以及第四子像素的子像素驱动电路,即第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4,如图4所示,第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4均沿第二方向Y延伸,且在像素P中沿第一方向X依次并排排列,第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4构成像素P的像素驱动电路。由此,也可以将图4作为根据本公开一些实施例的单个像素的像素驱动电路的结构示意图。本实施例中,第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4依次远离所述像素P的透光区域TA排列。
本实施例中以具有四个子像素的像素结构来举例说明,本领域技术人员可以理解的是在其他实施例中,单个像素可以具有其他数量的子像素,例如为三个,即红色子像素、绿色子像素及蓝色子像素。
图5为根据本公开实施例单个子像素的电路图,以下结合图4和图5对本公开实施例中单个像素P进行解释说明。
如图4所示,每个像素P对应一条第一栅线GL1、一条第二栅线GL2、一条第一电源线VDDL、一条第二电源线VSSL、一条检测线SL以及四条数据线DL。如图5所示,第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4中的每一个均包括第一 晶体管T1(亦称为开关晶体管T1)、第二晶体管T2(亦称为驱动晶体管T2)和第三晶体管T3(亦称为检测晶体管T3)以及存储电容Cst。第一栅线GL1为各子像素驱动电路提供第一控制信号G1,第二栅线GL2为各子像素提供第二控制信号G2,第一数据线DL1、第二数据线DL2、第三数据线DL3和第四数据线DL4分别为第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4提供数据信号Data,第一电源线VDDL为各子像素驱动电路提供恒定的第一电压信号,例如为VDD电压信号,第二电源线VSSL为各子像素驱动电路提供恒定的第二电压信号,例如为VSS电压信号。检测线SL用于向个像素驱动电路提供复位信号,并用于采样检测各子像素驱动电路电特性,例如第二晶体管T2的阈值电压,以实现外部补偿,获得较好的显示效果。
具体地,每个子像素驱动电路包括开关晶体管T1、驱动晶体管T2、检测晶体管T3和存储电容Cst。其中驱动晶体管T2即为图3中的驱动晶体管DT,开关晶体管T1的栅极接收由第一栅线GL1提供的第一控制信号G1,开关晶体管T1的第一极,例如为漏极,接收由数据线DL提供数据信号Data,开关晶体管T1的第二极,例如为源极,与存储电容Cst的第二电容电极CstE2和驱动晶体管T2的栅极电连接,三者在第一节点G处电连接,开关晶体管T1配置为响应于第一控制信号G1将该数据信号Data写入驱动晶体管T2的栅极和存储电容Cst。
驱动晶体管T2的第一极,例如为漏极,通过第一电源连接线VDDLS与第一电源线VDDL电连接,接收由第一电源线VDDL提供的第一电压信号,例如为VDD电压信号,驱动晶体管T2的第二极,例如为源极,与存储电容Cst的第二电容电极CstE2电连接,并配置为与发光元件D的阳极电连接,驱动晶体管T2配置为在驱动晶体管T2的栅极的电压的控制下控制用于驱动发光元件D的电流。
检测晶体管T3的栅极接收第二栅线GL2提供的第二控制信号G2,检测晶体管T3的第一极,例如为源极,与驱动晶体管T2的第二极以及存储电容Cst的第一电容电极CstE1电连接,三者在第二节点S处电连接,检测晶体管T3的第二极,例如为漏极,通过检测连接线SLS与检测线SL电连接,自检测线SL获取复位信号,并向检测线SL提供采样检测信号SEN,检测晶体管T3配置为 响应于第二控制信号G2检测所属的子像素驱动电路的电特性以实现外部补偿;该电特性例如包括开关晶体管T1的阈值电压和/或载流子迁移率,或者发光元件的阈值电压、驱动电流等。
发光元件D的阳极与驱动晶体管T2的第二极,例如为源极电连接,发光元件D的阴极与第二电源线VSSL电连接,例如通过通孔电连接,接入VSS电压信号。发光元件D基于其流过的电流来实现发光,发光强度由流过发光元件D的电流强度决定。
在一些实施例中,存储电容Cst可以包括与第一电容电极CstE1电连接的第三电容电极CstE3。第一电容电极CstE1、第二电容电极CstE2以及第三电容电极CstE2依次叠置在衬底基板10上。第一电容电极CstE1与第二电容电极CstE2具有交叠区域,第一电容电极CstE1和第二电容电极CstE2构成第一电容。第三电容电极CstE3与第二电容电极CstE2具有交叠区域,第三电容电极CstE3和第二电容电极CstE2构成第二电容,存储电容Cst可以看作是第一电容和第二电容的并联,由此增大存储电容Cst的电容量。
本公开的实施例中采用的晶体管均可以为薄膜晶体管或场效应晶体管或其他特性相同的开关器件,本公开的实施例中均以薄膜晶体管为例进行说明。这里采用的晶体管的源极、漏极在结构上可以是对称的,所以其源极、漏极在结构上可以是没有区别的。在本公开的实施例中,为了区分晶体管除栅极之外的两极,直接描述了其中一极为第一极,另一极为第二极。此外,按照晶体管的特性区分可以将晶体管分为N型和P型晶体管。当晶体管为P型晶体管时,开启电压为低电平电压(例如,0V、-5V、-10V或其他合适的电压),关闭电压为高电平电压(例如,5V、10V或其他合适的电压);当晶体管为N型晶体管时,开启电压为高电平电压(例如,5V、10V或其他合适的电压),关闭电压为低电平电压(例如,0V、-5V、-10V或其他合适的电压)。需要说明的是,本文中的描述中均以晶体管为N型晶体管为例进行说明,然而其不作为对本公开的限制。
如图4所示,在单个像素P对应区域内,即图4所示的范围内,第一栅线GL1和第二栅线GL2均沿第一方向X延伸,例如呈直线形,第一栅线GL1和第二栅线GL2分别设置在透光区域TA两侧,即透光区域TA夹设在第一栅线GL1和第二栅线GL2之间,在其他实施例中,第一栅线GL1和第二栅线GL2亦可以穿设于透光区域TA内。在单个像素P对应区域内,即图4所示的范围内,第一 电源线VDDL,第二电源线VSSL,检测线SL以及四条数据线DL均沿第二方向Y延伸,例如呈直线形。具体地,检测线SL位于第二子像素驱动电路SPC2、第三子像素驱动电路SPC3之间。第一数据线DL1和第二数据线DL2设置在第一子像素驱动电路SPC1和第二子像素驱动电路SPC2之间,第一数据线DL1相较于第二数据线DL2更靠近第一子像素驱动电路SPC1,第二数据线DL2相较于第一数据线DL1更靠近第二子像素驱动电路SPC2,即,第一数据线DL1位于第一子像素驱动电路SPC1和第二数据线DL2之间,第二数据线DL2位于第一数据线DL1和第二子像素驱动电路SPC2之间。第三数据线DL3和第四数据线DL4设置在第三子像素驱动电路SPC3和第四子像素驱动电路SPC4之间,第三数据线DL3相较于第四数据线DL4更靠近第三子像素驱动电路SPC3,第四数据线DL4相较于第三数据线DL3更靠近第四子像素驱动电路SPC4,即,第三数据线DL3位于第三子像素驱动电路SPC3和第四数据线DL4之间,第四数据线DL4位于第三数据线DL3和第四子像素驱动电路SPC4之间。第二电源线VSSL位于第一子像素驱动电路SPC1远离第一数据线DL1一侧,即位于透光区域TA与第一子像素驱动电路SPC1之间,第一电源线VDDL位于第四子像素驱动电路SPC4远离第四数据线DL4一侧。本实施例中,第一子像素驱动电路SPC1的结构与第四子像素驱动电路SPC4的结构相对于检测线SL镜像对称,第二子像素驱动电路SPC2的结构与第三子像素驱动电路SPC3的结构相对于检测线SL镜像对称。
图4、图6~图14为本公开的实施例的显示面板制备过程的示意图,示出了透明显示面板的一个像素P的结构,本实施例中以透明显示面板为顶发射型OLED显示面板为例进行举例说明。单个像素P包括显示区域DA和透光区域TA,显示区域DA中设置有依次远离透光区域TA排列的第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3和第四子像素驱动电路SPC4,每个子像素的像素驱动电路包括第一晶体管T1、第二晶体管T2、第三晶体管T3和存储电容Cst。
图6为根据本公开一些实施例的透明显示面板在制造过程中形成第一金属层的图案后单个像素的平面结构示意图,图7为图6中沿线A-A的截面结构示意图。(需要说明的是图6中的线A-A所表示的剖切位置与后续其他附图中的线A-A所表示的剖切位置是一致的。)如图6和7所示,首先在衬底基板上形成第 一金属层20的图案,具体地,在衬底基板10上沉积第一金属薄膜,通过构图工艺对第一金属薄膜进行构图,在衬底基板10上形成第一金属层20的图案,第一金属层20的图案包括屏蔽层21和检测连接线SLS,每个子像素驱动电路包括一个屏蔽层21,检测连接线SLS为跨设四个子像素驱动电路的且沿第一方向X延伸的条形结构。检测连接线SLS配置为连接后续形成的检测线SL,使检测线SL向各个子像素驱动电路提供复位信号,并用于采样检测各子像素驱动电路的电特性,例如第二晶体管T2的阈值电压,以实现外部补偿。在一些实施例中,屏蔽层21呈长条状的矩形,且沿第二方向Y延伸。屏蔽层21配置为对后续形成的各晶体管的沟道进行遮光处理,降低照射到晶体管上的光强度,降低漏电流,从而减少光照对晶体管特性的影响。屏蔽层21的中间部分(由虚线框圈出)作为第一电容的一个电容电极,即第一电容电极CstE1,其配置为与后续形成的第二电容电极CstE2形成第一电容。在第二方向Y上,屏蔽层21的长度大于后续形成的开关晶体管T1的栅极与检测晶体管T3的栅极之间的距离。在一些实施例中,屏蔽层21的长度大于后续形成的开关晶体管T1的漏极与第三晶体管T3的漏极之间的距离。结合图4和图6所示,第一子像素驱动电路SPC1中的第一金属层20的图案与第四子像素驱动电路SPC4中的第一金属层20的图案相对于后续形成的检测线SL镜像对称。第二子像素驱动电路SPC2中的第一金属层20的图案与第三子像素驱动电路SPC3中的第一金属层20的图案相对于后续形成的检测线SL镜像对称。本次构图工艺后,屏蔽层21和检测连接线SLS形成在显示区域DA中,透光区域TA中不设置第一金属层。
图8为根据本公开一些实施例的透明显示面板在制造过程中形成有源材料层的图案后单个像素的平面结构示意图,图9为图8中沿A-A的截面结构示意图。然后,如图8、9所示,形成有源材料层40的图案,具体地,在形成有前述图案的衬底基板10上,依次沉积第一绝缘薄膜和有源材料薄膜,例如为金属氧化物薄膜,通过构图工艺对有源材料薄膜进行构图,形成覆盖第一金属层20的图案的第一绝缘层30,以及形成在第一绝缘层30上的有源材料层40的图案,有源材料层40包括设置在每个子像素驱动电路中的开关晶体管T1的有源层,亦称为第一有源层T1a、驱动晶体管T2的有源层,亦称为第二有源层T2a、检测晶体管T3的有源层,亦称为第三有源层T3a和第二电容电极CstE2。第二电容电极CstE2在衬底基板10上的正投影与第一电容电极CstE1在衬底基板10上 的正投影存在交叠区域,第一电容电极CstE1和第二电容电极CstE2形成第一电容。
在一些实施例中,第一有源层T1a、第二有源层T2a和第三有源层T3a在衬底基板10上的正投影与屏蔽层21在衬底基板10上的正投影存在交叠区域,使得屏蔽层21可以遮挡开关晶体管T1、驱动晶体管T2和检测晶体管T3的沟道区域,避免光线对沟道产生影响,以避免沟道因生成光生漏电流而影响显示效果。第一有源层T1a、第二有源层T2a、第三有源层T3a以及第二电容电极CstE2中任意两者均间隔设置,即第一有源层T1a在衬底基板10上的正投影、第二有源层T2a在衬底基板10上的正投影、第三有源层T3a在衬底基板10上的正投影,与第二电容电极CstE2在衬底基板10上的正投影两两之间均不存在交叠区域,有利于根据相关需求设计开关晶体管T1、驱动晶体管T2和检测晶体管T3的沟道宽长比。在一些实施例中,如图8和9所示,第一子像素驱动电路SPC1和第四子像素驱动电路SPC4中的第二电容电极CstE2与第三有源层T3a之间设置有间隔区域42,第二子像素驱动电路SPC2和第三子像素驱动电路SPC3的第二电容电极CstE2中部设置有凹口区域43,在间隔区域42和凹口区域43中均不存在有源材料层40。在一些实施例中,如图4结合图8所示,第一子像素驱动电路SPC1中的有源材料层40的图案与第四子像素驱动电路SPC4中的有源材料层40的图案相对于后续形成的检测线SL镜像对称,第二子像素驱动电路SPC2中的有源材料层40的图案与第三子像素驱动电路SPC3中的有源材料层40的图案相对于后续形成的检测线SL镜像对称。本次构图工艺后,有源材料层40的图案形成在显示区域DA而未形成在透光区域TA,透光区域TA包括衬底基板10以及设置在衬底基板10上的第一绝缘层30。
图10为根据本公开一些实施例的透明显示面板在制造过程中形成第二金属层的图案后单个像素的平面结构示意图,图11为图10中沿线A-A的截面结构示意图。如图10和11所示,然后形成第二金属层60的图案,包括:在形成有前述图案的衬底基板10上,依次沉积第二绝缘薄膜和第二金属薄膜,通过构图工艺对第二绝缘薄膜和第二金属薄膜进行构图,形成第二绝缘层50的图案以及设置在第二绝缘层50上的第二金属层60的图案,在一些实施例中,第二绝缘层50的图案与和第二金属层60的图案采同一掩模形成,两者具有相同的图案。第二金属层60的图案包括形成对应每个像素P中的第一栅线GL1、第二栅线GL2、 第一电源连接线VDDLS、第一辅助线62、第二辅助线63以及形成在每个子像素驱动电路中的开关晶体管T1的栅极,亦称为第一栅极T1g、驱动晶体管T2的栅极,亦称为第二栅极T2g和检测晶体管T3的栅极,亦称为第三栅极T3g。第二金属层60的图案还包括形成在每个子像素驱动电路中的第一栅极连接线64和第二栅极连接线65。如图10所示,在单个像素P对应的区域中,即在图10所示的区域中,第一栅线GL1和第二栅线GL2平行设置,均沿着第一方向X直线延伸,第一栅线GL1位于透光区域TA的下侧,第二栅线GL2位于透光区域TA的上侧。即透光区域TA夹设于第一栅线GL1和第二栅线GL2之间。各子像素驱动电路亦夹设在第一栅线GL1和第二栅线GL2之间。
第一栅极T1g沿第一方向X延伸,跨设在第一有源层T1a上,通过沿第二方向Y延伸的第一栅极连接线64与第一栅线GL1电连接。具体地,第一栅极T1g包括连接端部T1g1和自由端部T1g2,第一栅极连接线64包括第一端部641和第二端部642。第一栅极连接线64的第一端部641与第一栅线GL1电连接,第一栅极连接线64的第二端部642与第一栅极T1g的连接端部T1g1电连接。在一些实施例中,第一栅极T1g1、第一栅极连接线64以及第一栅线GL1为一体结构。第二栅极T2g沿第一方向X延伸,跨设在第二有源层T2a上,且与第二电容电极CstE2存在交叠区域。第三栅极T3g沿第一方向X延伸,跨设在第三有源层T3a上,通过沿第二方向Y延伸的第二栅极连接线65与第二栅线GL2电连接。具体地,第三栅极T3g包括连接端部T3g1和自由端部T3g2,第二栅极连接线65包括第一端部651和第二端部652。第二栅极连接线65的第一端部651与第二栅线GL2电连接,第二栅极连接线65的第二端部652与第三栅极T3g的连接端部T3g1电连接。在一些实施例中,第三栅极T3g、第二栅极连接线65以及第二栅线GL2为一体结构。
第一辅助线62形成在第二电源线VSSL所在区域,沿第二方向Y延伸,配置为电连接后续形成的第二电源线VSSL。由此,后续形成的第二电源线VSSL通过过孔与第一辅助线62并联设置,从而有效降低第二电源线VSSL的阻抗。在一些实施例中,第一辅助线62位于第一栅极T1g和第三栅极T3g之间。本领域技术人员可以理解的是,第一辅助线62不是必须的,在一些实施例中,第一辅助线62可以省略。
第二辅助线63形成在第一电源线VDDL所在区域,沿第二方向Y延伸,配 置为电连接后续形成的第一电源线VDDL。由此,后续形成的第一电源线VDDL通过过孔与第二辅助线63并联设置,从而有效降低第一电源线VDDL的阻抗。在一些实施例中,第二辅助线63位于第一栅极T1g和第三栅极T3g之间。本领域技术人员可以理解的是,第二辅助线63不是必须的,在一些实施例中,第二辅助线63可以省略。
第一电源连接线VDDLS沿第一方向X延伸,跨设在四个子像素驱动电路内,配置为电连接后续形成的第一电源线VDDL。在一些实施例中,第一电源连接线VDDLS可以与第二辅助线63电连接,两者例如为一体结构。
如图11所示,第二绝缘层50的图案与第二金属层60的图案相同,即第二绝缘层50位于第二金属层60的下方,第二金属层60以外区域没有第二绝缘层50。如图10所示,除了第一电源连接线VDDLS,第一子像素驱动电路SPC1中第二金属层的图案与第四子像素驱动电路SPC4中的第二金属层的图案相对于后续形成的检测线SL镜像对称,第二子像素驱动电路SPC2中的第二金属层的图案与第三子像素驱动电路SPC3中的第二金属层的图案相对于后续形成的检测线SL镜像对称。
在一些实施例中,本次工艺还包括导体化处理。导体化处理是在形成第二金属层60的图案后,利用包括第一栅极T1g、第二栅极T2g和第三栅极T3g的第二金属层60的图案作为遮挡进行等离子体处理,被第一栅极T1g、第二栅极T2g和第三栅极T3g遮挡区域的有源材料层40(即有源材料层40与第一栅极T1g、第二栅极T2g和第三栅极T3g重叠的区域)分别作为晶体管的沟道区域。未被第二金属层60遮挡区域的有源材料层40被导体化,形成导体化的第二电容电极CstE2和导体化的源漏区域。本次构图工艺后,第二金属层60的图案形成在显示区域DA,未形成在透光区域TA,透光区域TA包括在衬底基板10以及设置在衬底基板10上的第一绝缘层30。
图12为根据本公开一些实施例的透明显示面板在制造过程中形成第三绝缘层的图案后单个像素的平面结构示意图,图13为图12中沿线A-A的截面结构示意图。如图12和图13所示,接着形成第三绝缘层70的图案。形成第三绝缘层70的图案包括:在形成有前述图案的衬底基板10上,沉积第三绝缘薄膜,通过构图工艺对第三绝缘薄膜进行构图,形成覆盖前述结构的第三绝缘层70的图案,第三绝缘层70上开设有多个过孔,多个过孔包括:位于第一栅极T1g两侧 的第一过孔V1和第二过孔V2,位于第二栅极T2g两侧的第三过孔V3和第四过孔V4,位于第三栅极T3g两侧的第五过孔V5和第六过孔V6,位于检测连接线SLS与检测线交叠位置处的第七过孔和位于检测连接线SLS与检测晶体管T3的漏极的交叠位置处的第八过孔V8,位于第二栅极T2g与第二电容电极CstE2交界处的第九过孔V9,位于未被有源材料层40覆盖的屏蔽层21所在位置例如为间隔区域42或凹口区域43所在位置处的第十过孔V10,第十四过孔V14。位于第一辅助线62所在位置的多个第十一过孔V11,位于第二辅助线63所在位置的多个第十二过孔V12。
第一过孔V1和第二过孔V2内的第三绝缘层70被刻蚀掉,暴露出第一有源层T1a两端的表面。第三过孔V3设置在第一电源连接线VDDLS与第二有源层T2a的交界处,第三过孔V3内的第三绝缘层70被刻蚀掉,同时暴露出第二有源层T2a的表面和第一电源连接线VDDLS的表面,第四过孔V4内的第三绝缘层70被刻蚀掉,暴露出第二有源层T2a的表面。第五过孔V5和第六过孔V6内的第三绝缘层70被刻蚀掉,暴露出第三有源层T3a两端的表面。第七过孔V7位于检测连接线SLS与后续形成的检测线SL重叠的位置,每个子像素驱动电路内形成一个第八过孔V8,第七过孔V7和第八过孔V8内的第一绝缘层30和第三绝缘层70被刻蚀掉,暴露出检测连接线SLS的表面。第九过孔V9位于第二栅极T2g和第二电容电极CstE2的交界处,第九过孔V9内的第三绝缘层70被刻蚀掉,暴露出第二栅极T2g的表面和第二电容电极CstE2的表面。第一子像素驱动电路SPC1和第四子像素驱动电路SPC4中的第十过孔V10在衬底基板10上的正投影位于第二电容电极CstE2与第三有源层T3a之间的间隔区域42在衬底基板10上的正投影内,第二子像素驱动电路SPC2和第三子像素驱动电路SPC3中的第十过孔V10在衬底基板上的正投影位于第二电容电极CstE2中部的凹口区域43在衬底基板10上的正投影内。第十过孔V10内的第一绝缘层30和第三绝缘层70被刻蚀掉,暴露出屏蔽层21的表面。
第十四过孔V14内的第三绝缘层70被刻蚀掉,暴露第一绝缘层30。第十四过孔V14的设计是为了工艺对称性,仅在第二子像素驱动电路SPC2中和第三子像素驱动电路SPC3中形成,其在衬底基板10上的正投影位于第二电容电极CstE2中部的凹口区域43在衬底基板10上的正投影内,在第一子像素驱动电路SPC1中和第四子像素驱动电路SPC4中并不存在。在后续工艺中,各子像素驱 动电路中均形成的用于连接阳极的第十三过孔V13。在第一子像素驱动电路SPC1中和第四子像素驱动电路SPC4中,后续形成的第十三过孔V13覆盖仅仅穿透第三绝缘层70的第六过孔V6形成套孔,而在第二子像素驱动电路SPC2和第三子像素驱动电路SPC3中,后续形成的第十三过孔V13位于凹口区域43处且靠近第十过孔V10,为了子像素驱动电路的工艺对称性,在第二子像素驱动电路SPC2中和第三子像素驱动电路SPC3中的第十三过孔V13所在位置处形成与第一子像素驱动电路SPC1和第四子像素驱动电路SPC4中类似第六过孔V6的第十四过孔V14,使得后续形成的第十三过孔V13覆盖第十四过孔V14形成套孔。第十四过孔V14并非是必须的,在一些实施例中,可以不设置第十四过孔。
第十一过孔V11位于第一辅助线62上,即多个第十一过孔V11在衬底基板10上的正投影落入第一辅助线62在衬底基板10上的正投影内。多个第十一过孔V11间隔设置,第十一过孔V11内的第三绝缘层70被刻蚀掉,暴露出第一辅助线62的表面。
多个第十二过孔V12位于第二辅助线63上,多个第十二过孔V12在衬底基板10上的正投影落入第二辅助线63在衬底基板10上的正投影内。多个第十二过孔V12间隔设置,第十二过孔V12内的第三绝缘层70被刻蚀掉,暴露出第二辅助线63的表面。本次构图工艺后,多个过孔图案形成在显示区域DA,透光区域TA包括在衬底基板10上叠设的第一绝缘层30和第三绝缘层70。
图4为根据本公开一些实施例的透明显示面板在制造过程中形成第三金属层的图案后单个像素的平面结构示意图,图14为图4中沿线A-A的截面结构示意图。如图4和图14所示,接着形成第三金属层80的图案,具体地,在形成有前述图案的衬底基板上,沉积第三金属薄膜,通过构图工艺对第三金属薄膜进行构图,在第三绝缘层70上形成第三金属层图案。第三金属层80包括:与每个像素P对应的第一电源线VDDL、第二电源线VSSL、检测线SL和四条数据线DL,以及形成在每个子像素中的开关晶体管T1的源极和漏极,亦称为第一源极T1s和第一漏极T1d、驱动晶体管T2的源极和漏极,亦称为第二源极T2s和第二漏极T2d、检测晶体管T3的源极和漏极,亦称为第三源极T3s和第三漏极T3d,以及第三电容电极CstE3,图14为图4中沿线A-A的截面示意图。如图4和14所示,第一漏极T1d和第一源极T1s分别通过第一过孔V1和第二过孔V2电连 接第一有源层T1a位于第一栅极T1g两侧的导体化的端部,形成开关晶体管T1。第二漏极T2d和第二源极T2s分别通过第三过孔V3和第四过孔V4电连接第二有源层T2a位于第二栅极T2g两侧的导体化的端部,形成驱动晶体管T2,同时第二漏极T2d还通过第三过孔V3与第一电源连接线VDDLS电连接。第三漏极T3d和第三源极T3s分别通过第五过孔V5和第六过孔V6电连接第三有源层T3a位于第三栅极T3g两侧的导体化的端部,形成检测晶体管T3。另外第三漏极T3d还经由第八过孔V8与检测连接线SLS电连接,检测线SL通过第七过孔与检测连接线SLS电连接,由此使得检测线与各子像素驱动电路的检测晶体管T3的漏极T3d电连接。第一源极T1s还通过第九过孔V9与第二栅极T2g和第二电容电极CstE2电连接,该第九过孔V9处可以理解为图5中的第一节点G。第三电容电极CstE3通过第十过孔V10与屏蔽层21电连接,并填充第十四过孔V14。第三电容电极CstE3与第二源极T2s以及第三源极T3s电连接,可以为一体结构。第二电源线VSSL通过多个第十一过孔V11电连接至第一辅助线62,以降低第二电源线VSSL的传输电阻。第一电源线VDDL通过多个第十二过孔V12电连接至第二辅助线63,降低第一电源线VDDL的传输电阻,并且通过第二辅助线63将VDD电压信号经第一电源连接线VDDLS传递至驱动晶体管T2的第二漏极T2d。如图4所示,第一子像素驱动电路SPC1中的第三金属层80的图案与第四子像素驱动电路SPC4中的第三金属层80的图案相对于后续形成的检测线SL镜像对称,第二子像素驱动电路SPC2中的第三金属层80的图案与第三子像素驱动电路SPC3中的第三金属层80的图案相对于后续形成的检测线SL镜像对称。
本次构图工艺后,第三金属层80的图案形成在显示区域DA,未形成在透光区域TA,透光区域TA包括衬底基板10以及设置在衬底基板10上的第一绝缘层30、第三绝缘层70。
图15为根据本公开一些实施例的透明显示面板在制造过程中形成第四绝缘层和平坦化层的图案后单个像素的平面结构示意图,图16为图15中沿A-A的截面结构示意图。然后,如图15和图16所示,形成第四绝缘层90和平坦化层110的图案,具体地,在形成有前述图案的衬底基板10上,先沉积第四绝缘薄膜,通过对第四绝缘薄膜的构图工艺,例如曝光、显影、刻蚀等形成第四绝缘层90的图案,第四绝缘层90的图案具有在各子像素驱动电路中的过孔。而后在形 成第四绝缘层90的图案的衬底基板10上涂覆平坦化膜,对通过对平坦化膜的构图工艺,例如曝光、显影、刻蚀等形成平坦化层110的图案,平坦化层110的图案仅设置在像素P的显示区域DA,不设置在透光区域TA中,平坦化层110的图案亦具有在各子像素驱动电路中的过孔,在每个子像素驱动电路中,平坦化层110的过孔与第四绝缘层90的过孔对准,两者组成贯穿平坦化层110与第四绝缘层90的第十三过孔V13,第十三过孔V13的尺寸明显大于其他过孔。在一些实施例中,如图15、16所示,在第一子像素驱动电路SPC1和第四子像素驱动电路SPC4中,第十三过孔V13位于检测晶体管T3的源极T3s所在的位置处,具体地,第十三过孔V13覆盖第六过孔V6,即第六过孔V6在衬底基板10上的正投影落入第十三过孔V13在衬底基板10上的正投影内,由此可以节约版图空间,使得后续形成的像素界定层的开口区域尽可能的大。第十三过孔V13内的第四绝缘层90和平坦化层110被刻蚀掉,暴露出检测晶体管T3的源极T3s的表面。在第二子像素驱动电路SPC2和第三子像素驱动电路SPC3中,第十三过孔V13位于第二电容电极CstE2的开口43所在位置,与第十过孔V10相邻,在一些实施例中,第十三过孔V13覆盖第十四过孔V14,即第十四过孔V14在衬底基板10上的正投影落入第十三过孔V13在衬底基板10上的正投影内,由此形成类似在第一子像素驱动电路SPC1和第四子像素驱动电路SPC4中的套孔结构,提升工艺均一性。第十三过孔V13内的第四绝缘层90和平坦化层110被刻蚀掉,暴露出第三电容电极CstE3的表面。在每个子像素驱动电路中,第十三过孔V13与第十过孔V10相邻,且两者在第二方向Y上对齐,即第十三过孔V13的中心与第十过孔V10的中心的直线连线平行于第二方向Y。在第一子像素驱动电路SPC1和第四子像素驱动电路SPC4中,第十三过孔V13相较于第十过孔V10更加靠近第二栅线GL2,在第二子像素驱动电路SPC2和第三子像素驱动电路SPC3中,第十三过孔V13相较于第十过孔V10更加远离第二栅线GL2。本领域技术人员应当理解的是各子像素驱动电路的第十过孔V10应当被第四绝缘层90和平坦化层110遮蔽,但为了清楚体现第十过孔V10和第十三过孔V13的位置关系,图15中采用虚线图案示出了各子像素驱动电路的第十过孔V10。如图15所示,第一子像素驱动电路SPC1中的第四绝缘层90和平坦化层110的图案与第四子像素驱动电路SPC4中的第四绝缘层90和平坦化层110的图案相对于后续形成的检测线SL镜像对称,第二子像素驱动电路SPC2中的第四绝缘层90和平坦化 层110的图案与第三子像素驱动电路SPC3中的第四绝缘层90和平坦化层110的图案相对于后续形成的检测线SL镜像对称。本次构图工艺后,透光区域TA包括在衬底基板10上叠设的第一绝缘层30、第三绝缘层70、第四绝缘层90。
图17为根据本公开一些实施例的透明显示面板在制造过程中形成阳极层的图案后单个像素的平面结构示意图,图18为图17中沿线A-A的截面结构示意图。然后,如图17和图18所示,形成阳极层120的图案。具体地,在形成有前述图案的衬底基板上,沉积透明导电薄膜,例为如ITO、IZO,通过构图工艺对透明导电薄膜进行构图,在平坦化层110上形成阳极层120的图案,阳极层120至少包括各子像素的发光元件D的阳极1200,即第一子像素的第一发光元件的第一阳极1201、第二子像素的第二发光元件的第二阳极1202、第三子像素的第三发光元件的第三阳极1203、以及第四子像素的第四发光元件的第四阳极1204。每个子像素驱动电路中的驱动晶体管T2的源电极T2s、检测晶体管T3的源电极T3s和第三电容电极CstE3是相互连接的一体结构。每个子像素中,阳极1200通过对应的子像素驱动电路中的第十三过孔V13(在本文中亦称为阳极过孔V13)与该一体结构电连接,因此实现了每个子像素的阳极1200与其子像素驱动电路的驱动晶体管T2的源电极T2s的电连接,在图17中,各子像素驱动电路的第十三过孔V13应当被阳极1200遮蔽,但为了清楚体现第十三过孔V13和阳极1200的位置关系,图17中采用虚线图案示出了各子像素驱动电路的第十三过孔V13。在一些实施例中,四个阳极1200均位于显示区域DA内,每个阳极1200可以是四边形,例如矩形、菱形、正方形等。在其他实施例中,每个阳极1200可以是其他形状,例如圆形,多边形等。四个阳极1200在显示区域DA内呈2×2矩阵排列。在一些实施例中,如图17和18所示,第一阳极1201位于左上方,通过第一子像素驱动电路SPC1的第十三过孔V13与第一子像素驱动电路SPC1的检测晶体管T3的源电极T3s电连接,第二阳极1202位于左下方,通过第二子像素驱动电路SPC2的第十三过孔V13与第二子像素驱动电路SPC2的第三电容电极CstE3电连接,第三阳极1203位于右下方,通过第三子像素驱动电路SPC3的第十三过孔V13与第三子像素驱动电路SPC3的第三电容电极CstE3电连接,第四阳极1204位于右上方,通过第四子像素驱动电路SPC4的第十三过孔V13与第四子像素驱动电路SPC4的检测晶体管T3的源电极T3s电连接。
在一些可能的实施例中,显示区域DA内阳极1200的排列方式可以根据实 际需要进行调整,本公开在此不做具体限定。阳极层120通常不设置在透光区域TA中,以保障透光区域TA的透光率,本次构图工艺后,透光区域TA的膜层结构没有变化。
图19为根据本公开一些实施例的透明显示面板在制造过程中形成像素界定层、发光材料层、阴极和封装层图案的图案后单个像素的平面结构示意图,图20为图19中沿线A-A的截面结构示意图,为了清楚起见,图19省略了像素界定层、发光材料层、阴极和封装层图案,仅示出了像素界定层的开口,像素界定层、发光材料层、阴极和封装层在图20中体现。如图19,20所示,形成像素界定层、发光材料层、阴极和封装层图案,具体地,在形成前述图案的衬底基板10上涂覆像素界定膜层,通过掩膜、曝光和显影工艺形成像素界定层130的图案,像素界定层130具有对应各子像素的阳极1200的开口1300,即分别对应第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204的第一开口1301、第二开口1302、第三开口1303,第四开口1304。第一开口1301、第二开口1302、第三开口1303,第四开口1304分别限定出第一发光元件、第二发光元件、第三发光元件及第四发光元件的发光区域。各开口1300在衬底基板10上的正投影落入其对应的阳极1200在衬底基板的正投影内,各开口1300暴露其对应的阳极1200的一部分。随后,在前述形成的开口1300内形成发光材料层140,发光材料层140与对应的阳极1200电连接。随后,沉积阴极薄膜,通过构图工艺形成阴极层150的图案,阴极层150至少包括各子像素的发光元件D的阴极,阴极层150分别与发光材料层140和第二电源线VSSL电连接。在一些实施例中,如图19和20所示,各子像素的发光元件D的阴极为一体结构,在一些实施例中,多个像素P的各子像素的发光元件D的阴极均一体形成,为一体结构,覆盖多个像素P的透光区域TA和显示区域DA。随后,在阴极层150上形成封装层160,封装层160例如为包括无机材料/有机材料/无机材料的叠层结构。在一些实施例中,阴极层150可以通过多种方式与第二电源线VSSL电连接,如激光打孔等。本次工艺后,在一些实施例中,透光区域TA可以包括衬底基板10以及设置在衬底基板10上的第一绝缘层30、第三绝缘层70、第四绝缘层90,阴极层150以及封装层160。本领域技术人员可以理解的是,透光区域TA中的第一绝缘层30、第三绝缘层70、第四绝缘层90,阴极层150以及封装层160均不是必须的,在一些实施例中,在上述各层的形成工艺中,可以根据实际需要去除透光区域 TA中的上述该些层。
至此,透明显示面板的像素结构已经基本完成。如图4-20所示,对于一个像素P来说,像素P的显示区域DA中,第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4沿平行于衬底基板10的第一方向X依次顺序排列,且均沿与所述第一方向X垂直的第二方向Y延伸。第一子像素驱动电路SPC1、第二子像素驱动电路SPC2、第三子像素驱动电路SPC3以及第四子像素驱动电路SPC4中的每个子像素驱动电路中,检测晶体管T3、存储电容Cst以及开关晶体管T1沿第二方向Y依次排列,并且检测晶体管T3和开关晶体管T1分别位于存储电容Cst的两侧。第一栅线GL1位于开关晶体管T1远离存储电容Cst的一侧,第二栅线GL2位于检测晶体管T3远离存储电容Cst的一侧。第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204在显示区域DA中,呈2×2矩阵排列。具体地,第一阳极1201位于2×2矩阵排列的左上方位置,第一阳极1201在衬底基板10上的正投影至少覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2中的检测晶体管T3在衬底基板10上的正投影,且覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2中的存储电容Cst靠近检测晶体管T3的部分在衬底基板10上的正投影,即覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2中存储电容Cst的第一部分Cst1在衬底基板10上的正投影。第二阳极1202位于2×2矩阵排列的左下方位置,第二阳极1202在衬底基板10上的正投影至少覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2中的开关晶体管T1在衬底基板10上的正投影,且覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2中的存储电容Cst靠近开关晶体管T1的部分在衬底基板10上的正投影,即覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2中存储电容Cst的第二部分Cst2在衬底基板10上的正投影。第三阳极1203位于2×2矩阵排列的右下方位置,第二阳极1202在衬底基板10上的正投影至少覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4中的开关晶体管T1在衬底基板10上的正投影,且覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4中的存储电容Cst靠近开关晶体管T1的部分在衬底基板10上的正投影,即覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4中存储电容Cst的第二部分Cst2在衬底基板10上的正投影。第四阳极1204位于2×2矩阵排列 的右上方位置,第四阳极1204在衬底基板10上的正投影至少覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4中的检测晶体管T3在衬底基板10上的正投影,且覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4中的存储电容Cst靠近检测晶体管T3的部分在衬底基板10上的正投影,即覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4中存储电容Cst的第一部分Cst1在衬底基板10上的正投影。
在比较实施例中,如图21所示,四个子像素的发光元件的阳极1200’基本上仅覆盖其对应的子像素驱动电路,各发光元件的阳极1200’基本上呈沿第二方向延伸的狭长条形,导致各发光元件亦呈第二方向Y延伸的狭长条形,并且在显示区域DA中依次沿第一方向X排列。在透明显示面板具有较高的分辨率时,单个显示区域DA沿第一方向X的宽度较窄,例如为,由此各发光元件的发光区域沿第一方向的宽度非常小,使得制造工艺难度增加,容易造成各发光元件的显示串色。
相较于比较例,本公开的一些实施例中,第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204在第一方向X上在基板上均覆盖两个子像素驱动电路宽度,第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204所在的第一至四发光元件在第一方向X的宽度较宽,易于制造,可以减少或避免各发光元件的显示串色的问题。
本领域技术人员可以理解的是,图17中示出的第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204在显示区域的形状以及它们与第一栅线GL1、第二栅线GL2、数据线DL、检测线SL、第一电源线VDDL,第二电源线VSSL等布线的位置关系仅仅为示意,本领域技术人员可以根据实际需要设计各阳极1200的尺寸、形状等,在一些实施例中,第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204中的每一个均可以覆盖与其临近的上述走线至少一部分,只要使得第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204中的任意两者之间不存在交叠或接触即可。
在一些实施例中,如图4-20所示,每个子像素驱动电路中,驱动晶体管T2包括在第二方向Y上依次远离存储电容Cst的源极T2s、栅极T2g和漏极T2d,检测晶体管T3包括在第二方向上依次远离存储电容Cst的源极T3s、栅极T3g和漏极T3d,存储电容Cst包括依次层叠在衬底基板10上的第一电容电极CstE1、 第二电容电极CstE2以及第三电容电极CstE3,其中第一电容电极CstE1在衬底基板10上的正投影与第二电容电极CstE2在衬底基板10的正投影存在交叠区域,两者形成第一电容,第三电容电极CstE3在衬底基板10上的正投影与第二电容电极CstE2在衬底基板10的正投影存在交叠区域,两者形成第二电容,第一电容电极CstE1与第三电容电极CstE3通过第十过孔V10(本文中亦称为电容过孔)电连接,存储电容Cst可以认为是第一电容和第二电容的并联,相较于仅具有两个电容电极的存储电容来说,可以增大存储电容的容量。
在每个子像素驱动电路中,驱动晶体管T2的源极T2s、所述第三电容电极CstE3以及检测晶体管T3的源极T3s相互连接为一体结构,其均位于第三金属层80(本文中亦称为源漏金属层80)内。阳极1200通过穿透第四绝缘层90和平坦化层110的第十三过孔V13(本文中亦称为阳极过孔V13)与上述的结构电连接,以实现子像素驱动电路对相应发光元件的驱动。各子像素驱动电路中的阳极过孔V13被相应的阳极1200覆盖。由于四个子像素驱动电路长条状的排布方式以及四个阳极1200的2×2矩阵排列方式(如图17所示),由此第一子像素驱动电路SPC1的阳极过孔V13需要位于第一子像素驱动电路SPC1靠近第二栅线GL2且被第一阳极1201覆盖的部分,第二子像素驱动电路SPC2的阳极过孔V13需要位于第二子像素驱动电路SPC2靠近第一栅线GL1且被第二阳极1202覆盖的部分,第三子像素驱动电路SPC3的阳极过孔V13需要位于第三子像素驱动电路SPC3靠近第一栅线GL1且被第三阳极1203覆盖的部分,第四子像素驱动电路SPC4的阳极过孔V13需要位于第四子像素驱动电路SPC4靠近第二栅线GL2且被第四阳极1204覆盖的部分。
具体地,如图4-20所示,在第一子像素驱动电路SPC1中,阳极过孔V13(后续亦称第一子像素驱动电路SPC1中阳极过孔V13为第一阳极过孔,记为V131)在衬底基板10上的正投影落入检测晶体管T3的源电极T3s在衬底基板10上的正投影内,第一阳极1201通过第一阳极过孔V131电连接至检测晶体管T3的源电极T3s,检测晶体管T3的源电极T3s通过第六过孔V6(本文中亦称为源极过孔V6)电连接至有源层T3a,尺寸较大的第一阳极过孔V131叠置在源极过孔V6上方形成套孔,源极过孔V6在衬底基板10上的正投影落入第一阳极过孔V131在衬底基板10上的正投影内。在第二子像素驱动电路SPC2中,阳极过孔V13(后续亦称第二子像素驱动电路SPC2中阳极过孔V13为第二阳极过孔, 记为V132)在衬底基板10上的正投影落入第三电容电极CstE3在衬底基板10上的正投影内,第二阳极1202通过第二阳极过孔V132电连接至存储电容Cst的第三电容电极CstE3。在第三子像素驱动电路SPC3中,阳极过孔V13(后续亦称第三子像素驱动电路SPC3中阳极过孔V13为第三阳极过孔,记为V13)在衬底基板10上的正投影落入第三电容电极CstE3在衬底基板10上的正投影内,第三阳极1203通过第三阳极过孔V133电连接至存储电容Cst的第三电容电极CstE3。在第四子像素驱动电路SPC4中,阳极过孔V13(后续亦称第四子像素驱动电路SPC4中阳极过孔V13为第四阳极过孔,记为V134)在衬底基板10上的正投影落入检测晶体管T3的源电极T3s在衬底基板10上的正投影内,第四阳极1204通过第四阳极过孔V134电连接至检测晶体管T3的源电极T3s,检测晶体管T3的源电极T3s通过第六过孔V6(本文中亦称为源极过孔V6)电连接至有源层T3a,尺寸较大的第四阳极过孔V134叠置在源极过孔V6上方形成套孔,源极过孔V6在衬底基板10上的正投影落入第四阳极过孔V134在衬底基板10上的正投影内。
在一些实施例中,如图4-20所示,第一阳极过孔V131、第二阳极过孔V132、第三阳极过孔V133以及第四阳极过孔V134的形状及尺寸基本上相同。第一阳极过孔V131在衬底基板10上的正投影的中心与第四阳极过孔V134在衬底基板上的正投影的中心的直线连接线沿第一方向X延伸,也就是说,第一阳极过孔V131到第二栅线GL2的距离与第四阳极过V134到第二栅线GL2的距离基本相等。第二阳极过孔V132在衬底基板10上的正投影的中心与第三阳极过孔V133在衬底基板上的正投影的中心的直线连接线沿第一方向X延伸,也就是说,第二阳极过孔V132到第一栅线GL1的距离与第三阳极过孔V133到第一栅线GL1的距离基本相等,由此保证工艺均一性。
在一些实施例中,阳极过孔V13贯穿第四绝缘层90和厚度较大平坦化层110由此,阳极过孔V13产生较大段差,平坦层110在阳极过孔V13附近的上表面平坦度较差,电容过孔V10贯穿了第一绝缘层30和第三绝缘层70,其具有较大深度,相较于仅穿过单层绝缘层的过孔会产生较大的段差,尽管电容过孔V10被平坦化层110覆盖,但平坦层110在电容过孔V10处的平坦度亦不佳。后续形成各发光元件的发光材料层140需要形成平坦层110的平坦度好的部分上以保障发光元件良好的发光均匀性。由此,在形成后续的像素界定层130的开口1300 时需要避开阳极过孔V13和电容过孔V10,如图19所示。由此为了方便开口1300的设计,使得开口1300尽可能最大化,在各子像素驱动电路中,阳极过孔V13和电容过孔V10两者均相邻。在狭长的各子像素驱动电路,阳极过孔V13和电容过孔V10两者均相邻例如可以沿子像素驱动电路的延伸方向即第二方向Y顺序排列。具体地,在每个子像素驱动电路中,阳极过孔V13和电容过孔V10相邻,且两者在第二方向Y上对齐,即阳极过孔V13的中心与电容过孔V10中心的直线连线平行于第二方向Y。
图19中示出了像素界定层130的各开口1300的位置,并采用虚线图案标示了阳极过孔V13和电容过孔V10的位置。如图19所示,阳极过孔V13和电容过孔V10均被像素界定层130及阳极层120覆盖。第一开口1301限定第一子像素的第一发光元件的发光区域,第一开口1301在衬底基板10上的正投影落入第一阳极1201在衬底基板10上的正投影内,并且第一开口1301避开第一子像素驱动电路SPC1中的阳极过孔V13和电容过孔V10,即第一开口1301在衬底基板10上的正投影与第一子像素驱动电路SPC1中阳极过孔V13和电容过孔V10在衬底基板10上的正投影均不交叠。第二开口1302限定第二子像素的第二发光元件的发光区域,第二开口1302在衬底基板10上的正投影落入第二阳极1202在衬底基板10上的正投影内,并且第二开口1301避开第二子像素驱动电路SPC2中的阳极过孔V13和电容过孔V10,即第二开口1302在衬底基板10上的正投影与第二子像素驱动电路SPC2中的阳极过孔V13和电容过孔V10在衬底基板10上的正投影均不交叠。第三开口1303限定第三子像素的第三发光元件的发光区域,第三开口1303在衬底基板10上的正投影落入第三阳极1203在衬底基板10上的正投影内,并且第三开口1303避开第三子像素驱动电路SPC3中的阳极过孔V13和电容过孔V10,即第三开口1303在衬底基板10上的正投影与第三子像素驱动电路SPC3中的阳极过孔V13和电容过孔V10在衬底基板10上的正投影均不交叠。第四开口1304限定第四子像素的第四发光元件的发光区域,第四开口1304在衬底基板10上的正投影落入第四阳极1204在衬底基板10上的正投影内,并且第四开口1304避开第四子像素驱动电路SPC4中的阳极过孔V13和电容过孔V10,即第四开口1304在衬底基板10上的正投影与第四子像素驱动电路SPC4中的阳极过孔V13和电容过孔V10在衬底基板10上的正投影均不交叠。
在透明显示面板的制造工艺中,阳极过孔V13通常面积较大,且深度较深,因此,在版图设计时,开口1300不能与阳极过孔V13距离过近,否则容易引起开口1300和过孔V13之间的像素界定层塌陷。因此,开口1300和过孔V13之间尽可能保持较大距离,例如大于预定距离。一些实施例中,如图19所示,在每个子像素驱动电路中,阳极过孔V13和电容过孔V10相邻,且两者在第二方向Y上对齐,阳极过孔V13的中心与电容过孔V10的连线平行于第二方向Y。并且,在第一子像素驱动电路SPC1和第四子像素驱动电路SPC4中,阳极过孔V13相较于第十过孔V10更加靠近第二栅线GL2,而在第二子像素驱动电路SPC2和第三子像素驱动电路SPC3中,阳极过孔V13相较于第十过孔V10更加远离第二栅线GL2。基于上述设计,在保障第一开口1301和第二开口1302中每一者与第二像素驱动电路SPC2中的阳极过孔V13的距离均大于预定距离的情况下,第一开口1301可以尽可能靠近第二开口1302,使得第一开口1301的面积最大化。同理,在保障第三开口1303和第四开口1304中每一者与第二像素驱动电路SPC4中的阳极过孔V13的距离均大于预定距离的情况下,第四开口1304可以尽可能靠近第三开口1303,使得第四开口1304的面积最大化。
在上述实施例中,如图19所示,第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204在显示区域DA呈2×2矩阵排列,且第一阳极1201基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的上半部分,第二阳极1202基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的下半部分,第三阳极1203基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的下半部分,第四阳极1204基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的上半部分,第一阳极过孔V131位于第一子像素驱动电路SPC1的上半部分,第二阳极过孔V132位于第二子像素驱动电路SPC2的下半部分,第三阳极过孔V133位于第三子像素驱动电路SPC3的下半部分,第四阳极过孔V134位于第四子像素驱动电路SPC4的上半部分。采用该种设计的透明显示面板,四个发光元件易于制造,可以减少或避免各发光元件的显示串色的问题。可选地,第一阳极过孔V131与第四阳极过孔V134在第一方向X上对齐,即第一阳极过孔131的中心与第四阳极过孔V134中心的直线连线沿第一方向X延伸。第二阳极过孔V132与第三阳极过孔V133在第一方向X上对齐,即第二阳极过孔132的中心与第三阳极过孔V133中心的直线连线 沿第一方向X延伸,由此可以改善透明显示面板的制造工艺的均一性。
在一些实施例中,如图22所示,第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204在显示区域DA呈2×2矩阵排列,且第一阳极1201基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的下半部分,第二阳极1202基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的上半部分,第三阳极1203基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的下半部分,第四阳极1204基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的上半部分,第一阳极过孔V131位于第一子像素驱动电路SPC1的下半部分,第二阳极过孔V132位于第二子像素驱动电路SPC2的是上半部分,第三阳极过孔V133位于第三子像素驱动电路SPC3的下半部分,第四阳极过孔V134位于第四子像素驱动电路SPC4的上半部分。采用该种设计的透明显示面板,四个发光元件易于制造,可以减少或避免各发光元件的显示串色的问题,可选地,第一阳极过孔V131与第三阳极过孔V133在第一方向X上对齐,即第一阳极过孔131的中心与第三阳极过孔V133中心的直线连线沿第一方向X延伸。第二阳极过孔V132与第四阳极过孔V134在第一方向X上对齐,即第二阳极过孔132的中心与第四阳极过孔V134中心的直线连线沿第一方向X延伸,由此可以改善透明显示面板的制造工艺的均一性。
在一些实施例中,如图23所示,第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204在显示区域DA呈2×2矩阵排列,且第一阳极1201基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的下半部分,第二阳极1202基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的上半部分,第三阳极1203基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的上半部分,第四阳极1204基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的下半部分,第一阳极过孔V131位于第一子像素驱动电路SPC1的下半部分,第二阳极过孔V132位于第二子像素驱动电路SPC2的是上半部分,第三阳极过孔V133位于第三子像素驱动电路SPC3的上半部分,第四阳极过孔V134位于第四子像素驱动电路SPC4的下半部分。采用该种设计的透明显示面板,四个发光元件易于制造,可以减少或避免各发光元件的显示串色的问题,可选地,第一阳极过孔V131与第四阳极过孔V134在第一方向X上对齐,即第一阳极过孔131的中心与第四阳极过孔V134中心的直 线连线沿第一方向X延伸。第二阳极过孔V132与第三阳极过孔V133在第一方向X上对齐,即第二阳极过孔132的中心与第三阳极过孔V133中心的直线连线沿第一方向X延伸,由此可以改善透明显示面板的制造工艺的均一性。
在一些实施例中,如图24所示,第一阳极1201、第二阳极1202、第三阳极1203以及第四阳极1204在显示区域DA呈2×2矩阵排列,且第一阳极1201基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的上半部分,第二阳极1202基本上覆盖第一子像素驱动电路SPC1和第二子像素驱动电路SPC2的下半部分,第三阳极1203基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的上半部分,第四阳极1204基本上覆盖第三子像素驱动电路SPC3和第四子像素驱动电路SPC4的下半部分,第一阳极过孔V131位于第一子像素驱动电路SPC1的上半部分,第二阳极过孔V132位于第二子像素驱动电路SPC2的是下半部分,第三阳极过孔V133位于第三子像素驱动电路SPC3的上半部分,第四阳极过孔V134位于第四子像素驱动电路SPC4的下半部分。采用该种设计的透明显示面板,四个发光元件易于制造,可以减少或避免各发光元件的显示串色的问题,可选地,第一阳极过孔V131与第三阳极过孔V133在第一方向X上对齐,即第一阳极过孔131的中心与第三阳极过孔V133中心的直线连线沿第一方向X延伸。第二阳极过孔V132与第四阳极过孔V134在第一方向X上对齐,即第二阳极过孔132的中心与第四阳极过孔V134中心的直线连线沿第一方向X延伸,由此可以改善透明显示面板的制造工艺的均一性。
本领域技术人员可以理解的是,在上述实施例中,当阳极过孔V13位于其对应的子像素驱动电路的上半部分时,该子像素驱动电路可以采用图4-20中第一子像素驱动电路SPC1或第一子像素驱动电路SPC4的结构。当阳极过孔V13位于其对应的子像素驱动电路的下半部分时,该子像素驱动电路可以采用图4-20中第二子像素驱动电路SPC2或第三子像素驱动电路SPC3的结构。
本公开一些实施例提供一种电子装置,具体为透明电子装置,包括上述任一实施例所述的透明显示面板。所述透明电子装置可以用于透视橱窗、交通工具的车窗等具有透视和显示功能的产品或部件。
以上描述仅为本公开的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解,本公开中所涉及的发明范围,并不限于上述技术特征的特定组合而成的技术方案,同时也应涵盖在不脱离所述发明构思的情况下,由上述技术 特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本公开中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (23)

  1. 一种显示面板,包括:
    衬底基板;以及
    设置在所述衬底基板上的像素,
    其中,所述像素包括第一子像素和第二子像素,所述第一子像素包括第一子像素驱动电路以及由所述第一子像素驱动电路驱动的第一发光元件,所述第二子像素包括第二子像素驱动电路以及由所述第二子像素驱动电路驱动的第二发光元件,所述第一子像素驱动电路和所述第二子像素驱动电路沿平行于衬底基板的第一方向依次顺序排列且均沿第二方向延伸,所述第二方向平行于衬底基板且与第一方向交叉,
    其中,所述第一发光元件包括与所述第一子像素驱动电路电连接的第一阳极,所述第二发光元件包括与所述第二子像素驱动电路电连接的第二阳极,所述第一阳极和所述第二阳极中的每一个在所述衬底基板上的正投影均部分地覆盖所述第一子像素驱动电路在衬底基板上的正投影和所述第二子像素驱动电路在所述衬底基板上的正投影,所述第一阳极在所述衬底基板上的正投影与所述第二阳极在所述衬底基板上的正投影不交叠。
  2. 根据权利要求1所述的显示面板,其中,所述第一子像素驱动电路和所述第二子像素驱动电路均包括检测晶体管、存储电容以及开关晶体管,在所述第二方向上,所述检测晶体管和所述开关晶体管分别位于所述存储电容的两侧,所述第一阳极和所述第二阳极中的一个在所述衬底基板上的正投影至少部分地覆盖所述第一子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且至少部分地覆盖所述第二子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第一阳极和所述第二阳极中的另一个在所述衬底基板上的正投影至少部分地覆盖所述第一子像素驱动电路中的开关晶体管在所述衬底基板上的正投影且至少部分地覆盖所述第二子像素驱动电路中的开关晶体管在所述衬底基板上的正投影。
  3. 根据权利要求2所述的显示面板,其中,所述第一阳极和所述第二阳极中的所述一个在所述衬底基板上的正投影覆盖所述第一子像素驱动电路中的存储电容的第一部分在所述衬底基板上的正投影且覆盖所述第二子像素驱动电路中的存储电容的第一部分在所述衬底基板上的正投影,所述第一阳极和第二阳极中的所述另一个在所述衬底基板上的正投影覆盖所述第一子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影且覆盖所述第二子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影,在所述第一子像素驱动电路和所述第二子像素驱动电路每一者中,所述存储电容的第一部分比所述存储电容的第二部分更靠近所述检测晶体管。
  4. 根据权利要求2或3所述的显示面板,其中,所述第一阳极和所述第二阳极中的所述一个在所述衬底基板上的正投影完全覆盖所述第一子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且完全覆盖所述第二子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第一阳极和所述第二阳极中的所述另一个在所述衬底基板上的正投影完全覆盖所述第一子像素驱动电路中的开关晶体管在所述衬底基板上的正投影且完全覆盖所述第二子像素驱动电路中的所述开关晶体管在所述衬底基板上的正投影。
  5. 根据权利要求2-4中任一项所述的显示面板,其中,所述像素还包括第三子像素和第四子像素,所述第三子像素包括第三子像素驱动电路以及由所述第三子像素驱动电路驱动的第三发光元件,所述第四子像素包括第四子像素驱动电路以及由所述第四子像素驱动电路驱动的第四发光元件,所述第一子像素驱动电路、所述第二子像素驱动电路、所述第三子像素驱动电路和所述第四子像素驱动电路沿平行于衬底基板的第一方向依次顺序排列且均沿所述第二方向延伸;
    其中,所述第三发光元件包括与所述第三子像素驱动电路电连接的第三阳极,所述第四发光元件包括与所述第四子像素驱动电路电连接的第四阳极,所述第三阳极和所述第四阳极中的每一个在所述衬底基板上的正投影均部分地覆盖所述第三子像素驱动电路在衬底基板上的正投影和所述第四子像素驱动电路在所述衬底基板上的正投影,所述第一阳极、所述第二阳极、所述第三阳极和所述第四阳极在所述衬底基板上的正投影中的任意两者均不交叠。
  6. 根据权利要求5所述的显示面板,其中,所述第三子像素驱动电路和所述第四子像素驱动电路均包括检测晶体管、存储电容以及开关晶体管,在所述第二方向上,在所述第三子像素驱动电路和所述第四子像素驱动电路的每个子像素驱动电路中,所述检测晶体管和所述开关晶体管分别位于所述存储电容的两侧;
    其中,所述第三阳极和所述第四阳极中的一个在所述衬底基板上的正投影至少部分地覆盖所述第三子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且至少部分地覆盖第四子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第三阳极和所述第四阳极中的另一个在所述衬底基板上的正投影至少部分地覆盖第三子像素驱动电路中的开关晶体管在所述衬底基板上的正投影且至少部分地覆盖第四子像素驱动电路中的开关晶体管在所述衬底基板上的正投影。
  7. 根据权利要求6所述的显示面板,其中,所述第三阳极和所述第四阳极中的所述一个在所述衬底基板上的正投影覆盖所述第三子像素驱动电路中的存储电容的第一部分在衬底基板上的正投影且覆盖所述第四子像素驱动电路中的存储电容的第一部分在所述衬底基板上的正投影,所述第三阳极和所述第四阳极中的所述另一个在所述衬底基板上的正投影覆盖所述第三子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影且覆盖所述第四子像素驱动电路中的存储电容的第二部分在所述衬底基板上的正投影,在所述第三子像素驱动电路和所述第四子像素驱动电路每一者中,所述存储电容的第一部分比所述存储电容的第二部分更靠近所述检测晶体管。
  8. 根据权利要求6或7所述的显示面板,其中,所述第三阳极和所述第四阳极中的所述一个在所述衬底基板上的正投影完全覆盖所述第三子像素驱动电路中的检测晶体管在所述衬底基板上的正投影且完全覆盖所述第四子像素驱动电路中的检测晶体管在所述衬底基板上的正投影,所述第三阳极和所述第四阳极中的所述另一个在衬底基板上的正投影完全覆盖所述第三子像素驱动电路中的开关晶体管在所述衬底基板上的正投影且完全覆盖所述第四子像素驱动电路中的开关晶体管在所述衬底基板上的正投影。
  9. 根据权利要求6至8中任一项所述的显示面板,其中,所述第一子像素驱动电路、所述第二子像素驱动电路、所述第三子像素驱动电路、所述第四子像素驱动电路中的每个子像素驱动电路还包括:
    驱动晶体管,位于所述存储电容远离所述检测晶体管的一侧,并位于所述存储电容与所述开关晶体管之间,
    所述驱动晶体管包括在所述第二方向上依次远离所述存储电容布置的源极、栅极和漏极,所述检测晶体管包括在所述第二方向上依次远离所述存储电容布置的源极、栅极和漏极,所述存储电容包括依次层叠在所述衬底基板上的第一电容电极、第二电容电极以及第三电容电极,所述驱动晶体管的源极、所述第三电容电极以及所述检测晶体管的源极布置于同一层且相互连接为一体结构。
  10. 根据权利要求9所述的显示面板,还包括:
    源漏金属层,包括各子像素驱动电路中的所述一体结构;
    阳极层,位于源漏金属层远离所述衬底基板一侧,包括第一阳极、第二阳极、第三阳极和第四阳极,
    平坦化层,设置在所述源漏金属层的远离所述衬底基板的一侧且设置在所述阳极层的面向所述衬底基板的一侧,
    其中,所述平坦化层中设有:
    第一阳极过孔,所述第一阳极通过所述第一阳极过孔电连接至第一子像素驱动电路的所述一体结构;
    第二阳极过孔,所述第二阳极通过所述第二阳极过孔电连接至第二子像素驱动电路的所述一体结构;
    第三阳极过孔,所述第三阳极通过所述第三阳极过孔电连接至第三子像素驱动电路的所述一体结构;
    第四阳极过孔,所述第四阳极通过所述四阳极过孔电连接至第四子像素驱动电路的所述一体结构。
  11. 根据权利要求10所述的显示面板,其中,
    所述第一阳极过孔和所述第二阳极过孔中的一个阳极过孔在所述衬底基板 上的正投影落入与所述一个阳极过孔电连接的子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内;
    所述第一阳极过孔和所述第二阳极过孔中的另一个阳极过孔在所述衬底基板上的正投影落入与所述另一个阳极过孔电连接的子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方向上位于与所述另一个阳极过孔电连接的子像素驱动电路中检测晶体管的源极在衬底基板上的正投影和与所述另一个阳极过孔电连接的子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间,
    所述第三阳极过孔和所述第四阳极过孔中的一个阳极过孔在所述衬底基板上的正投影落入与所述一个阳极过孔电连接的子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内;
    所述第三阳极过孔和所述第四阳极过孔中的另一个阳极过孔在所述衬底基板上的正投影落入与所述另一个阳极过孔电连接的子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方向上位于与所述另一个阳极过孔电连接的子像素驱动电路中检测晶体管的源极在所述衬底基板上的正投影和与所述另一个阳极过孔电连接的子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间。
  12. 根据权利要求10或11所述的显示面板,其中,所述第一阳极过孔在所述衬底基板上的正投影的中心与所述第三阳极过孔和所述第四阳极过孔中的一个在所述衬底基板上的正投影的中心的直线连接线沿所述第一方向延伸,所述第二阳极过孔的在所述衬底基板上的正投影的中心与所述第三阳极过孔和所述第四阳极过孔中的另一个在所述衬底基板上的正投影的中心的直线连接线沿所述第一方向延伸。
  13. 根据权利要求10或12所述的显示面板,其中,
    所述第一阳极过孔在所述衬底基板上的正投影落入所述第一子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内;
    所述第二阳极过孔在所述衬底基板上的正投影落入所述第二子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方 向上位于所述第二子像素驱动电路中检测晶体管的源极在所述衬底基板上的正投影和所述第二子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间;
    所述第三阳极过孔在所述衬底基板上的正投影落入所述第三子像素驱动电路中的存储电容的第三电容电极在所述衬底基板上的正投影内,并在所述第二方向上位于所述第三子像素驱动电路中检测晶体管的源极在所述衬底基板上的正投影和所述第三子像素驱动电路中驱动晶体管的源极在所述衬底基板上的正投影之间;
    所述第四阳极过孔在所述衬底基板上的正投影落入所述第四子像素驱动电路中的检测晶体管的源极在所述衬底基板上的正投影内。
  14. 根据权利要求13所述的显示面板,其中,每个子像素驱动电路还包括电容过孔,所述存储电容的第三电容电极通过所述电容过孔与所述第一电容电极电连接。
  15. 根据权利要求14所述的显示面板,其中,
    在所述第一子像素驱动电路中,所述电容过孔位于所述第一阳极过孔靠近所述存储电容的一侧,并位于所述第一阳极过孔和所述存储电容之间,所述电容过孔在所述衬底基板上的正投影的中心与所述第一阳极过孔在所述衬底基板上的正投影的中心的直线连线沿第二方向延伸,所述电容过孔在衬底基板上的正投影与第一阳极过孔在所述衬底基板上的正投影均落入所述第一阳极在所述衬底基板上的正投影内,
    在所述第二子像素驱动电路中,所述电容过孔位于所述第二阳极过孔靠近所述检测晶体管一侧,所述电容过孔在所述衬底基板上的正投影的中心与所述第二阳极过孔在所述衬底基板上的正投影的中心的直线连线沿所述第二方向延伸,所述电容过孔在所述衬底基板上的正投影与第二阳极过孔在所述衬底基板上的正投影均落入第二阳极在衬底基板上的正投影内,
    在所述第三子像素驱动电路中,所述电容过孔位于所述第三阳极过孔靠近所述检测晶体管一侧,所述电容过孔在所述衬底基板上的正投影的中心与所述第三阳极过孔在衬底基板上的正投影的中心的直线连线沿所述第二方向延伸,所述电 容过孔在所述衬底基板上的正投影与所述第三阳极过孔在所述衬底基板上的正投影均落入第三阳极在所述衬底基板上的正投影内,
    在所述第四子像素驱动电路中,所述电容过孔位于所述第四阳极过孔靠近存储电容的一侧,并位于所述第四阳极过孔和所述存储电容之间,所述电容过孔在所述衬底基板上的正投影的中心与所述第四阳极过孔在所述衬底基板上的正投影的中心的直线连线沿所述第二方向延伸,所述电容过孔在所述衬底基板上的正投影与所述第四阳极过孔在所述衬底基板上的正投影均落入所述第四阳极在所述衬底基板上的正投影内。
  16. 根据权利要求13所述的显示面板,其中,每个子像素驱动电路还包括源极过孔,每个子像素驱动电路的检测晶体管还包括有源层,所述检测晶体管的源极通过所述源极过孔连接至有源层,
    其中,所述第一子像素驱动电路中的源极过孔在所述衬底基板上的正投影落入所述第一阳极过孔在所述衬底基板上的正投影内,
    所述第四子像素驱动电路中的源极过孔在所述衬底基板上的正投影落入所述第四阳极过孔在所述衬底基板上的正投影内。
  17. 根据权利要求14或15所述的显示面板,还包括:
    像素界定层,像素界定层具有:
    第一开口,用于容置所述第一发光元件的发光材料层;
    第二开口,用于容置所述第二发光元件的发光材料层;
    第三开口,用于容置所述第三发光元件的发光材料层;以及
    第四开口,用于容置所述第四发光元件的发光材料层,
    其中,所述第一开口在所述衬底基板上的正投影落入所述第一阳极在所述衬底基板上的正投影内,所述第二开口在所述衬底基板上的正投影落入所述第二阳极在所述衬底基板上的正投影内,所述第三开口在所述衬底基板上的正投影落入所述第三阳极在所述衬底基板上的正投影内,所述第四开口在所述衬底基板上的正投影落入所述第四阳极在所述衬底基板上的正投影内。
  18. 根据权利要求17所述的显示面板,其中,
    所述第一开口在所述衬底基板上的正投影与所述第一阳极过孔在所述衬底基板上的正投影不交叠,所述第一开口在所述衬底基板上的正投影与所述第一子像素驱动电路的电容过孔在所述衬底基板上的正投影不交叠;
    所述第二开口在所述衬底基板上的正投影与所述第二阳极过孔在所述衬底基板上的正投影不交叠,所述第二开口在所述衬底基板上的正投影与所述第二子像素驱动电路的电容过孔在所述衬底基板上的正投影不交叠;
    所述第三开口在所述衬底基板上的正投影与所述第三阳极过孔在所述衬底基板上的正投影不交叠,所述第三开口在所述衬底基板上的正投影与所述第三子像素驱动电路的电容过孔在所述衬底基板上的正投影不交叠;
    所述第四开口在所述衬底基板上的正投影与所述第四阳极过孔在所述衬底基板上的正投影不交叠,所述第四开口在所述衬底基板上的正投影与所述第四子像素驱动电路的电容过孔在所述衬底基板上的正投影不交叠。
  19. 根据权利要求5-18中任一项所述的显示面板,其中,所述第一阳极、所述第二阳极、所述第三阳极以及所述第四阳极呈2×2矩阵排列,其中所述第一阳极和所述第二阳极沿所述第二方向并排布置,所述第三阳极和所述第四阳极沿所述第二方向并排布置。
  20. 根据权利要求5-19中任一项所述的显示面板,其中,所述像素具有沿第一方向并列排布的透光区域和显示区域,所述第一子像素、所述第二子像素、所述第三子像素和所述第四子像素位于所述显示区域。
  21. 根据权利要求1-20中任一项所述的显示面板,其中,所述第二方向垂直于所述第一方向。
  22. 根据权利要求1-21中任一项所述的显示面板,其中,所述显示面板为OLED显示面板。
  23. 一种电子装置,包括权利要求1-22中任一项所述的显示面板。
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