WO2020151289A1 - 显示面板、其制备方法及显示装置 - Google Patents

显示面板、其制备方法及显示装置 Download PDF

Info

Publication number
WO2020151289A1
WO2020151289A1 PCT/CN2019/114732 CN2019114732W WO2020151289A1 WO 2020151289 A1 WO2020151289 A1 WO 2020151289A1 CN 2019114732 W CN2019114732 W CN 2019114732W WO 2020151289 A1 WO2020151289 A1 WO 2020151289A1
Authority
WO
WIPO (PCT)
Prior art keywords
display area
light
display
driving circuit
pixel driving
Prior art date
Application number
PCT/CN2019/114732
Other languages
English (en)
French (fr)
Inventor
韩林宏
高永益
张毅
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/768,497 priority Critical patent/US11322567B2/en
Publication of WO2020151289A1 publication Critical patent/WO2020151289A1/zh
Priority to US17/699,238 priority patent/US11716876B2/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/88—Dummy elements, i.e. elements having non-functional features
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material
    • H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
    • H10K71/164—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using vacuum deposition
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material
    • H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
    • H10K71/166—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using selective deposition, e.g. using a mask
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0465—Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active 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
    • G09G2300/0804—Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/1201—Manufacture or treatment

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a display panel, a preparation method thereof, and a display device.
  • Electro-display devices are widely used due to their own characteristics.
  • terminal display products are developing in the direction of smaller and smaller appearance frames.
  • the smart functions that need to be equipped such as infrared sensor function and other photosensitive elements will occupy most of the frame.
  • a more effective solution is to place the infrared sensor and other photosensitive elements on the back of the display screen.
  • the infrared light transmittance is greatly reduced by the trace density in the backplane circuit, which cannot achieve the current purpose of infrared detection and other functions.
  • the embodiment of the present disclosure provides a display panel, including:
  • the display area has a plurality of pixel units, and the pixel units include an electro-display device and a pixel drive circuit for driving the electro-display device to emit light;
  • the electro-display device includes: a light-emitting device and a virtual light-emitting device; The light-emitting device is electrically connected to the pixel driving circuit, and the dummy light-emitting device is not connected to the pixel driving circuit;
  • the display area includes a first display area and a second display area
  • the distribution density of the electrodisplay device is the same, and the density of pixel driving circuits in the second display area is less than that of the pixel driving circuits in the first display area Density.
  • one light-emitting device is electrically connected to one pixel driving circuit.
  • At least two light-emitting devices with the same light-emitting color are electrically connected to the same pixel driving circuit.
  • At least part of the light-emitting devices electrically connected to the same pixel driving circuit are arranged in at least two columns.
  • the light emitting device includes: a red light emitting device, a green light emitting device, and a blue light emitting device;
  • the red light emitting devices electrically connected to the same pixel driving circuit are arranged in at least two columns, and the red light emitting devices in adjacent columns are arranged in a staggered manner;
  • the blue light-emitting devices electrically connected to the same pixel driving circuit are arranged in at least two columns, and the blue light-emitting devices in adjacent columns are arranged in a staggered manner.
  • part of the green light-emitting devices electrically connected to the same pixel driving circuit are arranged in at least two columns, and at least part of the green light-emitting devices in adjacent columns are aligned arrangement;
  • the rest of the green light-emitting devices electrically connected to the same pixel driving circuit are arranged in a row.
  • the green light-emitting devices electrically connected to the same pixel driving circuit are arranged in at least two columns, and the green light-emitting devices in adjacent columns are arranged in a staggered manner.
  • the pixel driving circuit includes a driving transistor, and in the second display area, the driving transistor is electrically connected to a corresponding light-emitting device through an anode wiring.
  • At least part of the sides of the second display area overlaps with at least part of the sides of the display area, and the remaining part of the second display area is overlapped with the first display area. Tangent.
  • the first display area is arranged to surround the second display area.
  • the display device provided by the embodiment of the present disclosure includes the above-mentioned display panel.
  • a sensor is provided on the back of the display panel corresponding to the second display area, and the orthographic projection of the sensor and the pixel driving circuit on the display panel does not overlap.
  • the electrodisplay device is formed in the first display area and the second display area of the base substrate on which the pixel drive circuit is formed; wherein, the fine metal mask
  • the opening density corresponding to the first display area is the same as the opening density corresponding to the second display area.
  • FIG. 1A is a schematic structural diagram of some display panels provided by embodiments of the disclosure.
  • FIG. 1B is a schematic structural diagram of a pixel driving circuit and a light emitting device in a second display area of the display panel shown in FIG. 1A;
  • FIG. 2A is a schematic structural diagram of still other display panels provided by the embodiments of the present disclosure.
  • FIG. 2B is a schematic structural diagram of a pixel driving circuit and a light emitting device in a second display area of the display panel shown in FIG. 2A;
  • 3A is a schematic structural diagram of still other display panels provided by the embodiments of the present disclosure.
  • 3B is a schematic structural diagram of a pixel driving circuit and a light emitting device in a second display area of the display panel shown in FIG. 3A;
  • FIG. 4 is a schematic structural diagram of a second display area in some display panels provided by embodiments of the disclosure.
  • FIG. 5 is a schematic partial cross-sectional structure diagram provided by an embodiment of the disclosure.
  • 6A to 6H are structural schematic diagrams of the first display area and the second display area, respectively;
  • FIG. 7A is a schematic top view of the structure of a display device provided by an embodiment of the disclosure.
  • FIG. 7B is a schematic cross-sectional view of the display device shown in FIG. 7A along the AA' direction;
  • FIG. 8 is a flow chart of the preparation method provided by the embodiment of the disclosure.
  • a display panel provided by an embodiment of the present disclosure may include a display area AA.
  • the display area AA has a plurality of pixel units, and the pixel units include an electro-display device and a pixel driving circuit for driving the electro-display device to emit light.
  • the electro-display device may include: a light-emitting device and a virtual light-emitting device; the light-emitting device is electrically connected to the pixel driving circuit, and the virtual light-emitting device is not connected to the pixel driving circuit.
  • the display area AA may include a first display area aa and a second display area bb, and each of the first display area aa and the second display area bb has a plurality of pixel units.
  • the distribution density of the electro-display devices in the first display area aa and the second display area bb is the same, and the distribution density of the pixel driving circuits in the second display area bb is smaller than the distribution density of the pixel driving circuits in the first display area aa.
  • the same mask can be used to prepare the electro-display devices.
  • the pixel driving circuit is electrically connected to at least one light-emitting device, the light-emitting device can be driven to emit light.
  • the distribution density of the pixel driving circuit in the second display area bb less than the distribution density of the pixel driving circuit in the first display area aa, it can be improved
  • the light transmittance of the second display area so that the sensor and other components can be arranged on the back of the corresponding display panel in the second display area bb, which can eliminate the frame space originally occupied by the sensor and other components, and expand the screen-to-body ratio of the display screen , To achieve extremely narrow borders. That is, to increase the screen light transmittance by reducing the distribution density of local pixel drive circuits to increase the screen-to-body ratio of the display panel.
  • a pixel unit is provided in the display area of a display panel, and a plurality of sub-pixels are provided in the pixel unit.
  • the pixel unit in the embodiments of the present disclosure may refer to a combination of sub-pixels that can independently display one pixel.
  • the display panel may include a plurality of red sub-pixels R, a plurality of green sub-pixels G, and a plurality of blue sub-pixels B. Among them, these red sub-pixels R, green sub-pixels G, and blue sub-pixels B are arranged in a Pantile arrangement.
  • the adjacent pixel units share the sub-pixels, and red, green and blue are mixed to realize image display.
  • the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B are taken as examples for description in FIGS. 1A, 2A, and 3A.
  • the pixel arrangement manners shown in FIGS. 1A, 2A, and 3A in the embodiments of the present disclosure are arranged in a manner that adjacent pixel units share sub-pixels.
  • the distribution density of the electro-display device may refer to the number of electro-display devices uniformly arranged in a unit area. If the number of electro-display devices arranged in a unit area is large, the distribution density of the electro-display devices is higher. Conversely, if the number of electro-display devices arranged in a unit area is small, the distribution density of electro-display devices is small.
  • the area of the rectangular frame formed by the thicker black solid line in FIGS. 1A, 2A, and 3A is, for example, a unit area, and the distribution density of the electrodisplay devices in the first display area aa and the second display area bb is the same. In this way, the same fine metal mask (FFM) can be used to form electroluminescent devices of the same color in the first display area.
  • FAM fine metal mask
  • the distribution density of the pixel driving circuit may refer to the number of pixel driving circuits uniformly arranged in a unit area. If the number of pixel drive circuits provided in a unit area is large, the distribution density of the pixel drive circuits is large. Conversely, if the number of pixel drive circuits provided per unit area is small, the distribution density of pixel drive circuits is small.
  • the area of the rectangular frame formed by the thicker black solid line in FIGS. 1A, 2A, and 3A is, for example, a unit area, and the distribution density of pixel driving circuits in the second display area bb is less than that of the pixel driving circuits in the first display area aa The distribution density.
  • the second display area bb overlaps with at least part of the edges of the display area AA, and the rest of the second display area bb Tangent to the first display area aa. In this way, the second display area bb can be set at the edge of the display area AA.
  • the first display area aa is arranged to surround the second display area bb.
  • the shape of the second display area bb may be set to a regular shape, for example, as shown in FIGS. 6A to 6C, the second display area bb may be set to a rectangle. Wherein, the top corner of the rectangle may be a right angle or an arc-shaped corner. As shown in FIG. 6D, the second display area bb may be set in a trapezoidal shape. Wherein, the apex angle of the trapezoid may be a regular included angle or an arc-shaped angle. As shown in FIG. 6H, the second display area bb may be set to be circular. Of course, the shape of the second display area bb can also be set to an irregular shape. For example, as shown in FIG. 6E, the second display area bb may be set in a drop shape. Of course, in practical applications, the shape of the second display area bb can be designed according to the shape of the elements arranged in the second display area, which is not limited here.
  • the relative positional relationship and shape of the first display area aa and the second display area bb are not limited, and can be set according to the screen design of the display substrate.
  • the second display area bb can be set in the upper left corner of the first display area aa.
  • the second display area bb is set at the upper right corner of the first display area aa.
  • the second display area bb is set at the upper middle position of the first display area aa.
  • FIG. 6A the second display area bb can be set in the upper left corner of the first display area aa.
  • the second display area bb is set at the upper right corner of the first display area aa.
  • the second display area bb is set at the upper middle position of the first display area aa.
  • the first display area aa and the second display area bb may be arranged in the row direction.
  • the second display area bb may be located on the upper or lower side of the first display area aa.
  • a sensor such as a sensor for face recognition (such as an infrared sensor, etc.), can also be arranged in the area where the second display area bb is located.
  • the first display area aa and the second display area bb may be arranged in the column direction.
  • the second display area bb may be located on the left or right side of the first display area aa.
  • a sensor such as a sensor for face recognition (such as an infrared sensor, etc.), can also be arranged in the area where the second display area bb is located.
  • the second display area bb is set at the corner (for example, the upper left corner) of the display area.
  • the specific location of the second display area bb can be designed and determined according to the actual application environment, which is not limited here.
  • FIG. 1A, FIG. 2A and FIG. 3A only illustrate the pixel arrangement of a part of the display area.
  • the pixel arrangement of the second display area bb is the same as the pixel arrangement of the first display area aa.
  • the second display area bb in FIGS. 1A, 2A, and 3A in the embodiment of the present disclosure is Describing the connection relationship between the pixel drive circuit and the light-emitting device only shows some sub-pixels.
  • the electro-display device may include at least one of an organic light emitting diode (OLED) and a quantum dot light emitting diode (QLED).
  • OLED organic light emitting diode
  • QLED quantum dot light emitting diode
  • the pixel driving circuit may include multiple transistors such as a driving transistor, a switching transistor, and a storage capacitor.
  • the specific structure and working principle of the pixel driving circuit may be the same as those in the related art, and will not be repeated here.
  • the display panel may include a base substrate 100, a transistor array layer 120 located on a side of the base substrate 100, and a display device film layer 110 located on a side of the transistor array layer 120 away from the base substrate 100.
  • the transistor array layer 120 is used to form the respective film layers of the transistors in the above-mentioned pixel driving circuit and the respective film layers that form the capacitors.
  • the display device film layer 110 is used to form the electro-display device 210 described above.
  • the transistor array layer 120 may include: an active layer 121 located on the side of the base substrate 100, a gate layer 122 located on the side of the active layer 121 away from the base substrate 100, and located on the gate layer 122 away from the base substrate.
  • the capacitor electrode layer 123 on the side 100 is located on the source and drain electrode layer 124 (having a source electrode 1241 and a drain electrode 1242) on the side of the capacitor electrode layer 123 away from the base substrate 100.
  • the active layer 121, the gate layer 122, and the capacitor electrode layer 123 are insulated from each other
  • the source and drain electrode layer 124, the gate layer 122, and the capacitor electrode layer 123 are insulated from each other.
  • the source electrode 1241 and the drain electrode 1242 are respectively insulated from each other.
  • the layer 121 is electrically connected.
  • the transistor array layer 120 further includes a buffer layer 125 between the base substrate 100 and the active layer 121, and a gate insulating layer 126 between the active layer 121 and the gate layer 122 so that the active layer 121 and The gate layer 122 is insulated, and the interlayer dielectric layer 127 between the gate layer 122 and the capacitor electrode layer 123 is disposed so that the gate layer 122 and the capacitor electrode layer 123 are insulated from each other, and are located between the capacitor electrode layer 123 and the source and drain electrode layer 124
  • the interlayer insulating layer 128 therebetween is arranged to insulate the capacitor electrode layer 123 from the source/drain electrode layer 124, and is located in the planarization layer 129 between the source/drain electrode layer 124 and the display device film layer 110.
  • the capacitor electrode layer 223 and the gate layer 222 form a capacitor structure.
  • the display device film layer 110 includes an anode 111, an electroluminescent layer 112, and a cathode layer 113 stacked on the base substrate 100. It should be noted that FIG. 5 only uses one transistor in one pixel driving circuit as an example for description.
  • the electro-display device 210 may include: a light-emitting device 211 and a virtual light-emitting device 212.
  • the anode of the light-emitting device 211 is electrically connected to the drain 1242 through the through hole through the planarization layer 129
  • the cathode of the light-emitting device 211 is electrically connected to the cathode power line, thereby providing a driving signal to the light-emitting device 211 through the drain 1242
  • a low voltage signal is provided to the light emitting device 211 through the cathode power line to drive the light emitting device 211 to emit light.
  • the anode of the dummy light emitting device 212 is not electrically connected to the pixel driving circuit, so it is not used for light emitting display.
  • the process preparation method and the formed structure of the light emitting device 211 and the dummy light emitting device 212 are substantially the same.
  • the sub-pixels in the shaded area have light-emitting devices 110, so that the sub-pixels in the shaded area can be used for light-emitting display.
  • the sub-pixels in the white area have dummy light-emitting devices 120, so that the sub-pixels in the white area may not be used for light-emitting display.
  • one light-emitting device 110 can be electrically connected to one pixel driving circuit correspondingly.
  • each sub-pixel in the first display area aa respectively has a light-emitting device 110 and a pixel driving circuit electrically connected to the light-emitting device 110. That is, each sub-pixel in the first display area aa has a pixel driving circuit to drive the electrically connected light emitting device 211 to emit light through the pixel driving circuit.
  • Part of the sub-pixels in the second display area bb (that is, the sub-pixels in the shaded area) respectively have light-emitting devices 110, and the remaining part of the sub-pixels (that is, the sub-pixels in the white area) respectively have virtual light-emitting devices 120, and the second display area bb It also includes a pixel drive circuit electrically connected to each light emitting device 110 in a one-to-one correspondence. In other words, only part of the light-emitting devices 211 of the sub-pixels in the second display area bb are electrically connected to the pixel driving circuit, so that the electrically connected light-emitting devices 211 are driven to emit light through the pixel driving circuit.
  • each pixel driving circuit may include a driving transistor DTFT, and the pixel driving circuit drives the light emitting device 211 to emit light by a current flowing through the driving transistor DTFT.
  • FIG. 1B only illustrates the corresponding relationship between the driving transistor DTFT and the light emitting device 211, and the light emitting device 211 corresponds to the pixel driving circuit one to one, that is, one driving transistor DTFT is electrically connected to only one light emitting device 211.
  • the driving transistor is electrically connected to the corresponding light emitting device through the anode wiring.
  • each red sub-pixel R has a light emitting device 211 and a pixel driving circuit electrically connected to the light emitting device.
  • Each green sub-pixel G has a light emitting device 211 and a pixel driving circuit electrically connected to the light emitting device.
  • Each blue sub-pixel B has a light emitting device 211 and a pixel driving circuit electrically connected to the light emitting device.
  • each red sub-pixel R with a shaded area has a light-emitting device 211 and a pixel driving circuit electrically connected to the light-emitting device, and each red sub-pixel R in the white area There is a virtual light emitting device 212.
  • Each green sub-pixel G with a shaded area has a light-emitting device 211 and a pixel driving circuit electrically connected to the light-emitting device, and each green sub-pixel G in the white area has a dummy light-emitting device 212.
  • Each blue sub-pixel B with a shaded area has a light-emitting device 211 and a pixel driving circuit electrically connected to the light-emitting device, and each blue sub-pixel B in a white area has a dummy light-emitting device 212.
  • the pixel driving circuit can also be arranged in the sub-pixel with the dummy light-emitting device 212, which is not limited here.
  • the light emitting devices 211 in the second display area bb are uniformly distributed. Further, the pixel driving circuits in the second display area bb are evenly distributed. In this way, the light transmission in the second display area bb can be more uniform.
  • the area where the orthographic projection of a light-emitting device 211 on the display panel (such as the base substrate 100) and the pixel drive circuit electrically connected is located in the display panel (for example, the orthographic projection of the base substrate 100) has an overlapping area. In this way, the occupied area of the light emitting device 211 can be increased.
  • the light-emitting device 211 in the red sub-pixel R can emit red light, that is, the light-emitting device 211 can be a red light-emitting device, and the light-emitting device 211 in the green sub-pixel G can emit green light, that is, the light-emitting device 211 can emit green light. It is a green light-emitting device, and the light-emitting device 211 in the blue sub-pixel B can emit blue light, that is, the light-emitting device 211 can be a blue light-emitting device.
  • the embodiments of the present disclosure provide further structural schematic diagrams of display panels, as shown in FIG. 2A and FIG. 3A, which are modified with respect to the implementation in the foregoing embodiment.
  • the following only describes the differences between this embodiment and the above-mentioned embodiments, and the similarities are not repeated here.
  • At least two light-emitting devices 211 with the same light-emitting color are electrically connected to the same pixel driving circuit. This can increase the life span and brightness of the light-emitting device.
  • At least two red light-emitting devices can share the same pixel drive circuit
  • at least two green light-emitting devices can share the same pixel drive circuit
  • at least two blue light-emitting devices can share the same pixel drive circuit.
  • two light-emitting devices with the same light-emitting color share the same pixel driving circuit.
  • the red light-emitting device 211 in two red sub-pixels R is electrically connected to the same pixel driving circuit, and the two green sub-pixels G
  • the green light-emitting devices 211 in the two blue sub-pixels B are electrically connected to the same pixel driving circuit
  • the blue light-emitting devices 211 in the two blue sub-pixels B are electrically connected to the same pixel driving circuit.
  • at least three light-emitting devices 211 with the same light-emitting color can be electrically connected to the same pixel driving circuit, for example, the red light-emitting devices 211 in three red sub-pixels R are electrically connected.
  • the green light-emitting devices 211 in the three green sub-pixels G are electrically connected to the same pixel drive circuit
  • the blue light-emitting devices 211 in the three blue sub-pixels B are electrically connected to the same pixel drive circuit.
  • FIG. 2A and FIG. 3A only illustrate the red sub-pixel R (that is, the red sub-pixel R with shadow), the green sub-pixel G (that is, the green sub-pixel G with shadow) and The blue sub-pixel B (that is, the blue sub-pixel B with a shadow).
  • the white area in the second display area bb is the sub-pixel provided with the dummy light-emitting device 212, which can refer to the setting of FIG. 1A, which will not be repeated here.
  • the driving transistor is electrically connected to the corresponding light emitting device through the anode wiring.
  • the anode wiring 001 may be used to electrically connect the light-emitting devices 211 in the sub-pixels of the same color to the same pixel driving circuit.
  • the anode wiring 001 is used to electrically connect the red light-emitting device 211 in the red sub-pixel R to the same pixel driving circuit.
  • the anode wiring 001 is used to electrically connect the green light-emitting device 211 in the green sub-pixel G to the same pixel driving circuit.
  • the anode wiring 001 is used to electrically connect the red light-emitting device 211 in the blue sub-pixel B to the same pixel driving circuit.
  • each driving transistor DTFT is electrically connected to at least two light-emitting devices 211 with the same light-emitting color through the anode wiring 001.
  • the red light-emitting devices 211 corresponding to the two red sub-pixels R are connected to the same driving transistor DTFT through the anode wiring 001
  • the green light-emitting devices 211 corresponding to the three green sub-pixels G are connected through the anode wiring 001.
  • the blue light-emitting devices 211 corresponding to the three blue sub-pixels B are connected to the same driving transistor DTFT through the anode wiring 001.
  • the red light-emitting devices 211 corresponding to the three red sub-pixels R are connected to the same driving transistor DTFT through the anode wiring 001
  • the green light-emitting devices 211 corresponding to the three green sub-pixels G are connected to the same driving transistor through the anode wiring 001.
  • the transistors DTFT are connected, and the blue light-emitting devices 211 corresponding to the three blue sub-pixels B are connected to the same driving transistor DTFT through the anode wiring 001.
  • the anode wiring 001 can be used to connect the light-emitting devices of the same color in the vicinity of the second display area, so as to improve the lifetime and light-emitting brightness of the light-emitting devices.
  • one pixel driving circuit drives at least two light-emitting devices of the same color to emit light at the same time. Compared with the one pixel driving circuit shown in FIG. 1B, only one light-emitting device is driven to emit light.
  • the brightness of the pixels corresponding to FIGS. 2B and 3B can reach 2 times and 3 times the brightness of the pixels shown in FIG. 1B, so the brightness of the display panel can be improved.
  • the brightness of each light-emitting device is half of the brightness of one light-emitting device shown in FIG. 1B. Since FIG. 3B uses three light-emitting devices to achieve the same brightness, the brightness of each light-emitting device is the one shown in FIG. 1B.
  • the brightness of the light emitting device is 1/3, so the power consumption of each light emitting device corresponding to FIG. 2B and FIG. 3B is lower, so that the life of the light emitting device can be improved.
  • the life of the light emitting device shown in FIGS. 2B and 3B is longer than that shown in FIG. 1B, and the brightness of the display panel can be improved.
  • the driving transistors DTFT in the embodiments of the present disclosure are all shown as P-type transistors, of course, they can also be N-type transistors; P-type transistors are turned off at a high potential and turned on at a low potential; N-type transistors Turn on at high potential and turn off at low potential.
  • the area of each electroluminescent device in the first display area is approximately the same as the area of each electroluminescent device in the second display area.
  • the first display area and the second display area can use high-precision masks (FMM) with the same opening density and size to evaporate the electroluminescent layers of the light-emitting devices in the first display area and the second display area.
  • FMM high-precision masks
  • the number of light-emitting devices in the first display area is greater than that in the second display area.
  • the number of light-emitting devices are higher than that of the second display area, and images with higher resolution requirements can be displayed in the first display area, such as playing videos; the second display area requires lower resolution Images, such as time, weather and other information.
  • the light emitting devices 211 that are at least partially electrically connected to the same pixel driving circuit in the second display area bb can be arranged in at least two columns.
  • the red light-emitting devices 211 electrically connected to the same pixel drive circuit are arranged in two columns, and the blue light-emitting devices 211 electrically connected to the same pixel drive circuit are arranged in two columns.
  • the green light emitting devices 211 connected to the same pixel driving circuit are arranged in one column, and the remaining green light emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two columns.
  • the red light emitting devices 211 electrically connected to the same pixel drive circuit are arranged in two columns, and the blue light emitting devices 211 electrically connected to the same pixel drive circuit are arranged in two columns, and the green light emitting devices electrically connected to the same pixel drive circuit are arranged in two columns.
  • the devices 211 are arranged in two rows.
  • the present disclosure includes but is not limited to this.
  • the red light-emitting device 211 ((ie red sub) of the same pixel driving circuit can be electrically connected in the second display area bb
  • the red light emitting devices 211)) in the pixel R are arranged in at least two rows, and the red light emitting devices 211 in adjacent rows are arranged in a staggered manner.
  • the red light emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two columns, in which one column of red light emitting devices 211 and the other column of red light emitting devices 211 are not in the same row of sub-pixels.
  • FIG. 2A the red light-emitting device 211 electrically connected to the same pixel driving circuit are arranged in two columns, in which one column of red light emitting devices 211 and the other column of red light emitting devices 211 are not in the same row of sub-pixels.
  • the red light-emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two columns, one of which has two red light-emitting devices 211, the other has one red light-emitting device 211, and the red light-emitting devices in the two columns 211 is not in the same row of sub-pixels.
  • three red light-emitting devices 211 may be electrically connected to the same pixel driving circuit.
  • the distance between two adjacent red light-emitting devices 211 in the same column is approximately equal to the distance of one red light-emitting device in the column direction F1. Width W1.
  • the blue light emitting device 211 (that is, the blue light emitting device 211) of the same pixel driving circuit can be electrically connected in the second display area bb.
  • the blue light-emitting devices 211) in the sub-pixel B are arranged in at least two columns, and the blue light-emitting devices in adjacent columns are arranged in a staggered manner. For example, as shown in FIG.
  • blue light-emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two columns, in which one column of blue light-emitting devices 211 and the other column of blue light-emitting devices 211 are not in the same row of sub-pixels.
  • the blue light-emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two rows, one of which has two blue light-emitting devices 211, the other has one blue light-emitting device 211, and The blue light emitting device 211 is not in the same row of sub-pixels.
  • three blue light emitting devices 211 may be electrically connected to the same pixel driving circuit. Furthermore, in the second display area bb, for the blue light-emitting devices 211 electrically connected to the same pixel driving circuit, the distance between two adjacent blue light-emitting devices 211 in the same column is approximately equal to that of one blue light-emitting device 211 in the column. Width W1 in direction F1.
  • the present disclosure includes but is not limited to this.
  • part of the green light-emitting devices electrically connected to the same pixel driving circuit are arranged in at least two columns, and adjacent columns At least part of the green light-emitting devices in are arranged in a row.
  • the rest of the green light-emitting devices 211 electrically connected to the same pixel driving circuit are arranged in a row.
  • the green light emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two rows of green light emitting devices 211, one of which has one green light emitting device 211, and the other has one
  • the green light emitting devices 211, and the green light emitting devices 211 arranged in a row are located in different columns.
  • the second display area bb can be electrically connected to the green light-emitting device 211 of the same pixel driving circuit (that is, the green sub-pixel G
  • the green light emitting devices 211) are arranged in at least two rows, and at least part of the green light emitting devices 211 in adjacent rows are arranged in a row. As shown in FIG.
  • the green light-emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two rows, one of which has two green light-emitting devices 211, and the other has one green light-emitting device 211, and The arranged green light emitting devices 211 are located in different columns.
  • the second display area bb can be arranged in at least two columns and electrically connected to the green light emitting circuit of the same pixel driving circuit.
  • the distance between two adjacent green light-emitting devices 211 in the same row is approximately equal to the width W2 of one green light-emitting device 211 in the row direction F2.
  • the present disclosure includes but is not limited to this.
  • the green light-emitting device 211 (that is, the green light-emitting device in the green sub-pixel G) electrically connected to the same pixel driving circuit is
  • the devices 211) are arranged in at least two rows, and the green light emitting devices in adjacent rows are arranged in a staggered manner. As shown in FIG. 4
  • the green light-emitting devices 211 electrically connected to the same pixel driving circuit are arranged in two rows, one of which has two green light-emitting devices 211, and the other has one green light-emitting device 211, and this The green light emitting devices 211 in the two columns are not in the same row of sub-pixels.
  • FIG. 4 only takes part of the red sub-pixels R, part of the green sub-pixels G, and part of the blue sub-pixels B in the second display area bb as an example for description.
  • At least three light-emitting devices with the same light-emitting color are electrically connected to the same pixel driving circuit.
  • three green light-emitting devices are electrically connected to the same pixel driving circuit.
  • the distance between two adjacent green light emitting devices 211 in the same column is approximately equal to the width W3 of one green light emitting device 211 in the column direction F1.
  • electro-display device is located in the sub-pixel area, and the embodiment of the present disclosure only illustrates the arrangement of the sub-pixels, and does not illustrate the pixel driving circuit.
  • embodiments of the present disclosure also provide a method for manufacturing the above-mentioned display panel, as shown in FIG. 8, which may include the following steps:
  • Pixel driving circuits are respectively formed in the first display area and the second display area of the base substrate; for example, the buffer layer 125, the active layer 121, the gate insulating layer 126, and the gate are sequentially formed on the base substrate.
  • electrodisplay devices are respectively formed in the first display area and the second display area of the base substrate on which the pixel drive circuit is formed; wherein the fine metal mask corresponds to the first display
  • the opening density of the area is the same as the opening density of the corresponding second display area.
  • an anode 111 layer, a pixel defining layer, an electroluminescent layer 112 and a cathode layer 113 are sequentially formed on the base substrate.
  • the same fine metal mask is used to form the electroluminescent layer 112 in the electroluminescent device in the first display area and the second display area of the base substrate on which the pixel driving circuit is formed.
  • an embodiment of the present disclosure also provides a display device, as shown in FIGS. 7A and 7B, which may include the above-mentioned display panel 10 provided by the embodiment of the present disclosure. Since the principle of solving the problem of the display device is similar to the foregoing display panel, the implementation of the display device can refer to the implementation of the foregoing display panel, and the repetition will not be repeated.
  • the above-mentioned display device provided by the embodiment of the present disclosure may be a full-screen mobile phone as shown in FIGS. 7A and 7B.
  • the above-mentioned display device provided by the embodiment of the present disclosure may also be any product or component with display function, such as a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and so on.
  • Other indispensable components of the display device are understood by those of ordinary skill in the art, and will not be repeated here, nor should they be used as a limitation to the present disclosure.
  • the display panel 10 has a mobile phone middle frame 20 around it, and a sensor 30 can be provided on the back of the display panel 10 corresponding to the second display area bb (
  • the photosensitive device of the camera, the photosensitive device of the fingerprint transmitter) in order to increase the intensity of the light received by the sensor 30 to improve the performance of the photosensitive device, the front projection of the sensor 30 and the pixel drive circuit on the base substrate of the display panel can be made Does not overlap.
  • the display panel needs to be equipped with smart functions such as infrared sensor function and other photosensitive elements, which can enhance the transmittance of infrared light and achieve the purpose of infrared detection.
  • the above-mentioned display panel, the preparation method and the display device provided by the embodiments of the present disclosure by making the distribution density of the electrodisplay devices in the first display area aa and the second display area bb the same, the same mask can be used to prepare the electro display Display device. And by making the distribution density of pixel drive circuits in the second display area bb smaller than that of the pixel drive circuits in the first display area aa, the light transmittance of the second display area can be increased, so the sensor and other components can be arranged in the second display area.
  • the back of the corresponding display panel in the display area bb can eliminate the frame space originally occupied by the sensor and other components, expand the screen ratio of the display screen, and achieve an extremely narrow frame. That is, to increase the screen light transmittance by reducing the distribution density of the local pixel driving circuit to increase the screen-to-body ratio of the display panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geometry (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

显示面板、其制备方法及显示装置，显示面板（10）包括显示区域（AA），具有多个像素单元，像素单元包括电致显示器件和用于驱动电致显示器件发光的像素驱动电路；电致显示器件（210）包括：发光器件（211）和虚拟发光器件（212）；发光器件（211）与像素驱动电路电性连接，虚拟发光器件（212）与像素驱动电路不连接；显示区域（AA）包括第一显示区域（aa）和第二显示区域（bb）；在第一显示区域（aa）和第二显示区域（bb），电致显示器件（210）的分布密度相同，且第二显示区域（bb）中像素驱动电路的密度小于第一显示区域（aa）中像素驱动电路的密度。

Description

显示面板、其制备方法及显示装置
相关申请的交叉引用
本申请要求在2019年01月25日提交中国专利局、申请号为201910072755.5、申请名称为“一种显示面板及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及显示技术领域，特别是涉及显示面板、其制备方法及显示装置。
背景技术
电致显示器件由于自身的特性，被广泛应用，目前随着中小尺寸显示屏的发展，终端显示产品朝着外观边框越来越小的方向发展。而需要搭载的智能功能如红外感应功能等感光元件会占用大部门的边框。为解决此矛盾，比较有效的解决方法是将红外感应等感光元件放置在显示屏的背部。这样一来，会出现一个新的问题，红外光透过率受背板电路中走线密度影响而大大降低，达不到目前红外探测等功能的目的。
发明内容
本公开实施例提供了显示面板，包括：
显示区域，具有多个像素单元，所述像素单元包括电致显示器件和用于驱动所述电致显示器件发光的像素驱动电路；所述电致显示器件包括：发光器件和虚拟发光器件；所述发光器件与所述像素驱动电路电性连接，所述虚拟发光器件与所述像素驱动电路不连接；
所述显示区域包括第一显示区域和第二显示区域；
在所述第一显示区域和所述第二显示区域，所述电致显示器件的分布密 度相同，且所述第二显示区域中像素驱动电路的密度小于所述第一显示区域中像素驱动电路的密度。
可选地，在本公开实施例中，一个所述发光器件与一个所述像素驱动电路对应电连接。
可选地，在本公开实施例中，所述第二显示区域内，至少两个发光颜色相同的所述发光器件共同电连接同一所述像素驱动电路。
可选地，在本公开实施例中，所述第二显示区域内，至少部分电连接同一所述像素驱动电路的发光器件排列为至少两列。
可选地，在本公开实施例中，所述发光器件包括：红色发光器件、绿色发光器件和蓝色发光器件；
所述第二显示区域内，电连接同一所述像素驱动电路的红色发光器件排列为至少两列，且相邻列中的红色发光器件错位排列；
所述第二显示区域内，电连接同一所述像素驱动电路的蓝色发光器件排列为至少两列，且相邻列中的蓝色发光器件错位排列。
可选地，在本公开实施例中，所述第二显示区域内，部分电连接同一所述像素驱动电路的绿色发光器件排列为至少两列，且相邻列中的至少部分绿色发光器件同行排列；
所述第二显示区域内，其余部分电连接同一所述像素驱动电路的绿色发光器件排列为一列。
可选地，在本公开实施例中，所述第二显示区域内，电连接同一所述像素驱动电路的绿色发光器件排列为至少两列，且相邻列中的绿色发光器件错位排列。
可选地，在本公开实施例中，所述像素驱动电路包括驱动晶体管，所述第二显示区域内，所述驱动晶体管通过阳极走线与对应的发光器件电连接。
可选地，在本公开实施例中，所述第二显示区域的至少部分边与所述显示区域的至少部分边重合，并且，所述第二显示区域的其余部分与所述第一显示区域相切。
可选地，在本公开实施例中，所述第一显示区域包围所述第二显示区域设置。
本公开实施例提供的显示装置，包括上述显示面板。
可选地，在本公开实施例中，所述第二显示区域对应的所述显示面板的背部设置有传感器，所述传感器和所述像素驱动电路在所述显示面板的正投影不交叠。
本公开实施例提供的上述显示面板的制备方法，包括：
在衬底基板的第一显示区域和第二显示区域中分别形成所述像素驱动电路；
采用同一张精细金属掩膜板，在形成有所述像素驱动电路的衬底基板的第一显示区域和第二显示区域中分别形成所述电致显示器件；其中，所述精细金属掩膜板对应所述第一显示区域的开口密度和对应所述第二显示区域的开口密度相同。
附图说明
图1A为本公开实施例提供的一些显示面板的结构示意图；
图1B为图1A所示的显示面板的第二显示区域的像素驱动电路和发光器件的结构示意图；
图2A为本公开实施例提供的又一些显示面板的结构示意图；
图2B为图2A所示的显示面板的第二显示区域的像素驱动电路和发光器件的结构示意图；
图3A为本公开实施例提供的又一些显示面板的结构示意图；
图3B为图3A所示的显示面板的第二显示区域的像素驱动电路和发光器件的结构示意图；
图4为本公开实施例提供的一些显示面板中第二显示区域的结构示意图；
图5为本公开实施例提供的局部剖视结构示意图；
图6A至图6H分别为第一显示区域和第二显示区域的结构示意图；
图7A为本公开实施例提供的显示装置的俯视结构示意图；
图7B为图7A所示的显示装置沿AA’方向上的剖视结构示意图；
图8为本公开实施例提供的制备方法的流程图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
附图中各部件的形状和大小不反映真实比例，目的只是示意说明本公开内容。
本公开实施例提供的一种显示面板，如图1A、图2A和图3A所示，可以包括显示区域AA。该显示区域AA具有多个像素单元，像素单元包括电致显示器件和用于驱动电致显示器件发光的像素驱动电路。其中，电致显示器件可以包括：发光器件和虚拟发光器件；发光器件与像素驱动电路电性连接，虚拟发光器件与像素驱动电路不连接。并且，显示区域AA可以包括第一显示区域aa和第二显示区域bb，第一显示区域aa和第二显示区域bb均具有多个像素单元。且第一显示区域aa和第二显示区域bb中的电致显示器件的分布密度相同，且第二显示区域bb中像素驱动电路的分布密度小于第一显示区域aa中像素驱动电路的分布密度。
本公开实施例提供的显示面板，通过使第一显示区域aa和第二显示区域bb中的电致显示器件的分布密度相同，可以采用同一掩膜版制备电致显示器件。并且由于像素驱动电路与至少一个发光器件电连接，可以驱动发光器件发光，因此通过使第二显示区域bb中像素驱动电路的分布密度小于第一显示区域aa中像素驱动电路的分布密度，可以提高第二显示区域的透光度，从而可以将传感器等元件设置在第二显示区域bb内对应的显示面板的背部，进而可以取消传感器等元件原本需占用的边框空间，扩大显示屏的屏占比，做到极窄边框。即采用降低局部像素驱动电路分布密度来增加屏幕透光率的方式 来提高显示面板的屏占比。
一般显示面板的显示区内设置有像素单元，像素单元中设置有多个子像素，本公开实施例中的像素单元指的可以是能独立显示一个像素点的子像素组合。可选地，如图1A、图2A以及图3A所示，显示面板可以包括：多个红色子像素R，多个绿色子像素G以及多个蓝色子像素B。其中，这些红色子像素R，绿色子像素G和蓝色子像素B采用Pantile排列方式进行排列。这样在显示时采用相邻像素单元公用子像素的方式，通过红绿蓝进行混色，以实现图像显示。需要说明的是，图1A、图2A和图3A中以红色子像素R、绿色子像素G和蓝色子像素B为例进行说明。本公开实施例中的图1A、图2A和图3A所示的像素排列方式采用相邻像素单元公用子像素的方式进行排列。
需要说明的是，电致显示器件的分布密度指的可以是在单位面积中均匀设置的电致显示器件的个数。单位面积中设置的电致显示器件个数多，则电致显示器件的分布密度大。反之，单位面积中设置的电致显示器件个数少，则电致显示器件分布密度小。例如，图1A、图2A和图3A中黑色较粗实线形成的矩形框的面积例如为单位面积，则第一显示区域aa和第二显示区域bb中的电致显示器件的分布密度相同。这样可以采用同一精细金属掩膜板(Fine Metal Mask，FFM)，形成第一显示区域中的同一颜色的电致发光器件。
需要说明的是，在本公开实施例中，像素驱动电路的分布密度指的可以是在单位面积中均匀设置的像素驱动电路的个数。单位面积中设置的像素驱动电路个数多，则像素驱动电路的分布密度大。反之，单位面积中设置的像素驱动电路个数少，则像素驱动电路分布密度小。例如，图1A、图2A和图3A中黑色较粗实线形成的矩形框的面积例如为单位面积，则第二显示区域bb中像素驱动电路的分布密度小于第一显示区域aa中像素驱动电路的分布密度。
在具体实施时，在本公开实施例中，如图6A至图6G所示，第二显示区域bb的至少部分边与显示区域AA的至少部分边重合，并且，第二显示区域bb的其余部分与第一显示区域aa相切。这样可以将第二显示区域bb设置在显示区域AA边缘。
在具体实施时，在本公开实施例中，如图6H所示，第一显示区域aa包围第二显示区域bb设置。
示例性地，可以使第二显示区域bb的形状设置为规则的形状，例如如图6A至图6C所示，可以使第二显示区域bb设置为矩形。其中，该矩形的顶角可以为直角或者也可以为弧形的角。如图6D所示，可以使第二显示区域bb设置为梯形。其中，该梯形的顶角可以为正规的夹角或者也可以为弧形的角。如图6H所示，可以使第二显示区域bb设置为圆形。当然也可以第二显示区域bb的形状设置为不规则的形状。例如如图6E所示，可以使第二显示区域bb设置为水滴形。当然，在实际应用中，第二显示区域bb的形状可以根据第二显示区域内设置的元件的形状进行设计，在此不作限定。
在具体实施时，在本公开实施例提供的显示基板中，对第一显示区域aa和第二显示区域bb的相对位置关系以及形状不作限定，可以根据显示基板的屏幕设计设置。以手机为例，如图6A所示，可以将第二显示区域bb设置在第一显示区域aa的左上角。如图6B所示，将第二显示区域bb设置在第一显示区域aa的右上角。如图6C至图6E所示，将第二显示区域bb设置在第一显示区域aa的中间靠上位置处。如图6F所示，可以使第一显示区域aa和第二显示区域bb沿行方向排列。其中，可以使第二显示区域bb位于第一显示区域aa的上侧或下侧。这样还可以在第二显示区域bb所处的区域中设置传感器，例如进行人脸识别的传感器(例如红外传感器等)。如图6G所示，可以使第一显示区域aa和第二显示区域bb沿列方向排列。其中，可以使第二显示区域bb位于第一显示区域aa的左侧或右侧。这样还可以在第二显示区域bb所处的区域中设置传感器，例如进行人脸识别的传感器(例如红外传感器等)。如图6H所示，将第二显示区域bb设置在显示区域的边角(例如左上角处)。当然，在实际应用中，第二显示区域bb的具体位置可以根据实际应用环境来设计确定，在此不作限定。
需要说明的是，本公开实施例为了示意性说明本公开的公开内容，图1A、图2A和图3A仅是示意出了部分显示区域的像素排布。
需要说明的是，第二显示区域bb的像素排布方式与第一显示区域aa的像素排布方式相同，本公开实施例中的图1A、图2A和图3A中的第二显示区域bb为了描述像素驱动电路与发光器件的连接关系，仅是示意出了部分子像素。
在具体实施时，在本公开实施例中，电致显示器件可以包括：有机发光二极管(Organic Light Emitting Diode，OLED)和量子点发光二极管(Quantum Dot Light Emitting Diodes，QLED)中的至少一种。
在具体实施时，在本公开实施例中，像素驱动电路可以包括驱动晶体管、开关晶体管等多个晶体管以及存储电容，其具体结构和工作原理可以与相关技术中的相同，在此不作赘述。
示例性地，如图5所示，显示面板可以包括衬底基板100，位于衬底基板100一侧的晶体管阵列层120和位于晶体管阵列层120背离衬底基板100一侧的显示器件膜层110。其中，晶体管阵列层120用于形成上述像素驱动电路中的晶体管的各个膜层以及形成电容的各个膜层。显示器件膜层110用于形成上述电致显示器件210。具体地，晶体管阵列层120可以包括：位于衬底基板100一侧的有源层121，位于有源层121背离衬底基板100一侧的栅极层122，位于栅极层122背离衬底基板100一侧的电容电极层123，位于电容电极层123背离衬底基板100一侧的源漏电极层124(具有源极1241与漏极1242)。其中，有源层121、栅极层122以及电容电极层123相互绝缘设置，源漏电极层124、栅极层122以及电容电极层123相互绝缘设置，源极1241与漏极1242分别与有源层121电连接。并且，晶体管阵列层120还包括：位于衬底基板100与有源层121之间的缓冲层125，位于有源层121与栅极层122之间的栅绝缘层126以使有源层121与栅极层122绝缘设置，位于栅极层122与电容电极层123之间的层间介质层127以使栅极层122与电容电极层123绝缘设置，位于电容电极层123与源漏电极层124之间的层间绝缘层128以使电容电极层123与源漏电极层124绝缘设置，位于源漏电极层124与显示器件膜层110之间的平坦化层129。并且，电容电极层223与栅极层222形成了电容 结构。并且，显示器件膜层110包括层叠设置于衬底基板100上的阳极111、电致发光层112以及阴极层113。需要说明的是，图5仅是以一个像素驱动电路中的一个晶体管为例进行说明的。
在具体实施时，在本公开实施例中，如图1A、图2A、图3A以及图5所示，电致显示器件210可以包括：发光器件211和虚拟发光器件212。其中，发光器件211的阳极通过贯穿平坦化层129过孔与漏极1242电连接，并且，发光器件211的阴极与阴极电源线电连接，从而通过漏极1242向发光器件211提供驱动信号，并且通过阴极电源线向发光器件211提供低电压信号，以驱动发光器件211发光。并且，虚拟发光器件212的阳极不与像素驱动电路电连接，因此其不用于发光显示。
在具体实施时，在本公开实施例中，发光器件211和虚拟发光器件212的工艺制备方式和形成的结构大致相同。
在具体实施时，在本公开实施例中，如图1A、图2A以及图3A所示，阴影区域的子像素具有发光器件110，以使阴影区域的子像素可以应用于发光显示。白色区域的子像素具有虚拟发光器件120，以使白色区域的子像素可以不应用于发光显示。
在具体实施时，在本公开实施例中，如图1A、图2A以及图3A所示，可以使一个发光器件110与一个像素驱动电路对应电连接。例如，第一显示区域aa中的每个子像素分别具有发光器件110以及与该发光器件110对应电连接的像素驱动电路。也就是说，第一显示区域aa中的每个子像素具有像素驱动电路，以通过像素驱动电路驱动电连接的发光器件211发光。第二显示区域bb中的部分子像素(即阴影区域的子像素)分别具有发光器件110，其余部分子像素(即白色区域的子像素)分别具有虚拟发光器件120，并且，第二显示区域bb中还包括与每一个发光器件110一一对应电连接的像素驱动电路。也就是说，第二显示区域bb中的仅有部分子像素的发光器件211电连接了像素驱动电路，以通过像素驱动电路驱动电连接的发光器件211发光。
在具体实施时，在本公开实施例中，如图1B所示，每一像素驱动电路可 以包括驱动晶体管DTFT，像素驱动电路是通过流过驱动晶体管DTFT的电流驱动发光器件211发光的。图1B仅示意出了驱动晶体管DTFT与发光器件211的对应关系，发光器件211与像素驱动电路一一对应，即一个驱动晶体管DTFT仅与一个发光器件211电连接。并且，驱动晶体管通过阳极走线与对应的发光器件电连接。
示例性地，第一显示区域aa中，每个红色子像素R中具有一个发光器件211以及与该发光器件电连接的一个像素驱动电路。每个绿色子像素G中具有一个发光器件211以及与该发光器件电连接的一个像素驱动电路。每个蓝色子像素B中具有一个发光器件211以及与该发光器件电连接的一个像素驱动电路。
示例性地，第二显示区域bb中，具有阴影区域的每个红色子像素R中具有一个发光器件211以及与该发光器件电连接的一个像素驱动电路，白色区域的每个红色子像素R中具有一个虚拟发光器件212。具有阴影区域的每个绿色子像素G中具有一个发光器件211以及与该发光器件电连接的一个像素驱动电路，白色区域的每个绿色子像素G中具有一个虚拟发光器件212。具有阴影区域的每个蓝色子像素B中具有一个发光器件211以及与该发光器件电连接的一个像素驱动电路，白色区域的每个蓝色子像素B中具有一个虚拟发光器件212。当然，像素驱动电路也可以设置在具有虚拟发光器件212的子像素中，在此不作限定。
在具体实施时，在本公开实施例中，第二显示区域bb中的发光器件211均匀分布。进一步地，第二显示区域bb中的像素驱动电路均匀分布。这样可以使第二显示区域bb中的透光较均匀。
在具体实施时，在本公开实施例中，如图5所示，一个发光器件211在显示面板(例如其中的衬底基板100)的正投影与电连接的像素驱动电路所在区域在显示面板(例如其中的衬底基板100)的正投影具有交叠区域。这样可以提高发光器件211的占用面积。
并且，需要说明的是，红色子像素R中的发光器件211可以发红光，即 发光器件211可以为红色发光器件，绿色子像素G中的发光器件211可以发绿光，即发光器件211可以为绿色发光器件，蓝色子像素B中的发光器件211可以发蓝光，即发光器件211可以为蓝色发光器件。
本公开实施例提供了又一些显示面板的结构示意图，如图2A与图3A所示，其针对上述实施例中的实施方式进行了变形。下面仅说明本实施例与上述实施例的区别之处，其相同之处在此不作赘述。
在具体实施时，在本公开实施例中，如图2A与图3A所示，第二显示区域内，至少两个发光颜色相同的发光器件211共同电连接同一像素驱动电路。这样可以提高发光器件的寿命和发光亮度。
示例性地，可以使至少两个红色发光器件共用同一像素驱动电路，可以使至少两个绿色发光器件共用同一像素驱动电路，也可以使至少两个蓝色发光器件共用同一像素驱动电路。例如，如图2A所示，为两个发光颜色相同的发光器件共用同一像素驱动电路，如两个红色子像素R中的红色发光器件211电连接同一个像素驱动电路，两个绿色子像素G中的绿色发光器件211电连接同一个像素驱动电路，两个蓝色子像素B中的蓝色发光器件211电连接同一个像素驱动电路。例如，如图3A所示，第二显示区域bb内，可以使至少三个发光颜色相同的发光器件211共同电连接同一像素驱动电路，如三个红色子像素R中的红色发光器件211电连接同一个像素驱动电路，三个绿色子像素G中的绿色发光器件211电连接同一个像素驱动电路，三个蓝色子像素B中的蓝色发光器件211电连接同一个像素驱动电路。当然具体实施时，还可以有数量更多的发光颜色相同的发光器件电连接同一像素驱动电路，可以根据实际需要进行设计，在此不做限定。
需要说明的是，图2A和图3A中仅示意出了具有发光器件211的红色子像素R(即具有阴影的红色子像素R)、绿色子像素G(即具有阴影的绿色子像素G)以及蓝色子像素B(即具有阴影的蓝色子像素B)。第二显示区域bb中的白色区域为设置有虚拟发光器件212的子像素，其可以参见图1A的设置，在此不作赘述。
在具体实施时，在本公开实施例中，第二显示区域bb内，驱动晶体管通过阳极走线与对应的发光器件电连接。示例性地，如图2A和图3A所示，可以采用阳极走线001将相同颜色的子像素中的发光器件211电连接至同一像素驱动电路。例如，采用阳极走线001将红色子像素R中的红色发光器件211电连接至同一像素驱动电路。采用阳极走线001将绿色子像素G中的绿色发光器件211电连接至同一像素驱动电路。采用阳极走线001将蓝色子像素B中的红色发光器件211电连接至同一像素驱动电路。
在具体实施时，在本公开实施例中，如图2A至图3B所示，各驱动晶体管DTFT通过阳极走线001与至少两个发光颜色相同的发光器件211电连接。具体地，如图2B所示，两个红色子像素R对应的红色发光器件211通过阳极走线001与同一驱动晶体管DTFT相连，三个绿色子像素G对应的绿色发光器件211通过阳极走线001与同一驱动晶体管DTFT相连，以及三个蓝色子像素B对应的蓝色发光器件211通过阳极走线001与同一驱动晶体管DTFT相连。如图3B所示，三个红色子像素R对应的红色发光器件211通过阳极走线001与同一驱动晶体管DTFT相连，三个绿色子像素G对应的绿色发光器件211通过阳极走线001与同一驱动晶体管DTFT相连，以及三个蓝色子像素B对应的蓝色发光器件211通过阳极走线001与同一驱动晶体管DTFT相连。这样可以利用阳极走线001将第二显示区域的附近的相同颜色的发光器件相连，以此来提高发光器件的寿命和发光亮度。
如图2B和图3B所示，在第二显示区域bb内，一个像素驱动电路同时驱动至少两个相同颜色的发光器件发光，相对于图1B所示的一个像素驱动电路仅驱动一个发光器件发光，图2B和图3B相对应的像素发光的亮度可达图1B所示的像素发光的亮度的2倍和3倍，因此可以提高显示面板的发光亮度。
另外，如果通过提高驱动电流来提升显示面板的亮度的话，如设定电流让图1B、图2B和图3B的方案达到相同的亮度，由于图2B是通过两个发光器件来达到相同的亮度，因此每个发光器件的亮度是图1B所示的一个发光器件的亮度的一半，由于图3B是通过三个发光器件来达到相同的亮度，因此每 个发光器件的亮度是图1B所示的一个发光器件的亮度的1/3，因此图2B和图3B对应的每个发光器件的功耗更低，从而可以提高发光器件的寿命。
并且，若图1B所示的流过发光器件211的电流已经最大，若想继续提高亮度，则发光器件211会被烧坏。而图2B和图3B中还可以继续提高对应的流过发光器件的电流，而不会损坏发光器件。因此图2B和图3B相对于图1B所示的发光器件的寿命更长，并且可以提高显示面板的亮度。
需要说明的是，本公开实施例中的驱动晶体管DTFT均是以P型晶体管示意的，当然也可以为N型晶体管；P型晶体管在高电位下截止，在低电位下导通；N型晶体管在高电位下导通，在低电位下截止。
在具体实施时，在本公开实施例中，第一显示区域的各电致发光器件的面积与第二显示区域的各电致发光器件的面积大致相同。这样第一显示区域和第二显示区域可以采用相同开孔密度和大小的高精度掩膜版(FMM)来蒸镀第一显示区域和第二显示区域的发光器件的电致发光层，因此可以同时保证第一显示区域和第二显示区域的电致发光层的蒸镀精度，提高显示效果。
进一步地，在具体实施时，在本公开实施例中，在相同面积的第一显示区域和第二显示区域内，第一显示区域内发光的发光器件的个数大于第二显示区域内发光的发光器件的个数。这样第一显示区域的分辨率就高于第二显示区域的分辨率，可以在第一显示区域显示分辨率要求较高的图像，如播放的视频；第二显示区域显示分辨率要求较低的图像，如时间、天气等信息。
在具体实施时，在本公开实施例中，如图2A与图3A所示，可以使第二显示区域bb内，至少部分电连接同一像素驱动电路的发光器件211排列为至少两列。例如，如图2A所示，第二显示区域bb内，电连接同一像素驱动电路的红色发光器件211排列为两列，电连接同一像素驱动电路的蓝色发光器件211排列为两列，部分电连接同一像素驱动电路的绿色发光器件211排列为一列，其余部分电连接同一像素驱动电路的绿色发光器件211排列为两列。例如，如图3A所示，电连接同一像素驱动电路的红色发光器件211排列为两列，电连接同一像素驱动电路的蓝色发光器件211排列为两列，电连接同一 像素驱动电路的绿色发光器件211排列为两列。当然，本公开包括但不限于此。
示例性地，在具体实施时，在本公开实施例中，如图2A与图3A所示，可以使第二显示区域bb内，电连接同一像素驱动电路的红色发光器件211((即红色子像素R中的红色发光器件211))排列为至少两列，且相邻列中的红色发光器件211错位排列。例如，如图2A所示，电连接同一像素驱动电路的红色发光器件211排列为两列，其中一列红色发光器件211和另一列红色发光器件211不在同一行子像素中。如图3A所示，电连接同一像素驱动电路的红色发光器件211排列为两列，其中一列具有两个红色发光器件211，另一列具有一个红色发光器件211，并且这两列中的红色发光器件211不在同一行子像素中。
示例性地，在具体实施时，在本公开实施例中，如图3A所示，可以使第二显示区域bb内，三个红色发光器件211共同电连接同一像素驱动电路。并且，第二显示区域bb内，针对电连接同一像素驱动电路的红色发光器件211，同一列中相邻的两个红色发光器件211之间的距离大致等于一个红色发光器件在列方向F1上的宽度W1。
示例性地，在具体实施时，在本公开实施例中，如图2A与图3A所示，可以使第二显示区域bb内，电连接同一像素驱动电路的蓝色发光器件211(即蓝色子像素B中的蓝色发光器件211)排列为至少两列，且相邻列中的蓝色发光器件错位排列。例如，如图2A所示，电连接同一像素驱动电路的蓝色发光器件211排列为两列，其中一列蓝色发光器件211和另一列蓝色发光器件211不在同一行子像素中。如图3A所示，电连接同一像素驱动电路的蓝色发光器件211排列为两列，其中一列具有两个蓝色发光器件211，另一列具有一个蓝色发光器件211，并且这两列中的蓝色发光器件211不在同一行子像素中。
示例性地，在具体实施时，在本公开实施例中，如图3A所示，可以使第二显示区域bb内，三个蓝色发光器件211共同电连接同一像素驱动电路。并且，第二显示区域bb内，针对电连接同一像素驱动电路的蓝色发光器件211， 同一列中相邻的两个蓝色发光器件211之间的距离大致等于一个蓝色发光器件211在列方向F1上的宽度W1。当然本公开包括但不限于此。
示例性地，在具体实施时，在本公开实施例中，如图2A所示，第二显示区域bb内，部分电连接同一像素驱动电路的绿色发光器件排列为至少两列，且相邻列中的至少部分绿色发光器件同行排列。并且，第二显示区域bb内，其余部分电连接同一像素驱动电路的绿色发光器件211排列为一列。例如，如图2A所示，第二显示区域bb内，针对电连接同一像素驱动电路的绿色发光器件211排列为两列的绿色发光器件211，其中一列具有一个绿色发光器件211，另一列具有一个绿色发光器件211，并且同行排列的绿色发光器件211位于不同列中。
示例性地，在具体实施时，在本公开实施例中，如图3A所示，可以使第二显示区域bb内，电连接同一像素驱动电路的绿色发光器件211(即绿色子像素G中的绿色发光器件211)排列为至少两列，且相邻列中的至少部分绿色发光器件211同行排列。如图3A所示，第二显示区域bb内，电连接同一像素驱动电路的绿色发光器件211排列为两列，其中一列具有两个绿色发光器件211，另一列具有一个绿色发光器件211，并且同行排列的绿色发光器件211位于不同列中。
示例性地，在具体实施时，在本公开实施例中，如图2A与图3A所示，可以使第二显示区域bb内，针对排列为至少两列且电连接同一像素驱动电路的绿色发光器件211，同一行中相邻的两个绿色发光器件211之间的距离大致等于一个绿色发光器件211在行方向F2上的宽度W2。当然本公开包括但不限于此。
示例性地，在具体实施时，在本公开实施例中，如图4所示，第二显示区域bb内，电连接同一像素驱动电路的绿色发光器件211(即绿色子像素G中的绿色发光器件211)排列为至少两列，且相邻列中的绿色发光器件错位排列。如图4所示，第二显示区域bb内，电连接同一像素驱动电路的绿色发光器件211排列为两列，其中一列具有两个绿色发光器件211，另一列具有一个 绿色发光器件211，并且这两列中的绿色发光器件211不在同一行子像素中。需要说明的是，图4仅是以第二显示区域bb中的部分红色子像素R、部分绿色子像素G以及部分蓝色子像素B为例进行说明的。
示例性地，在具体实施时，在本公开实施例中，如图4所示，第二显示区域内，至少三个发光颜色相同的发光器件共同电连接同一像素驱动电路。例如，三个绿色发光器件共同电连接同一像素驱动电路。针对电连接同一像素驱动电路的绿色发光器件211，同一列中相邻的两个绿色发光器件211之间的距离大致等于一个绿色发光器件211在列方向F1上的宽度W3。
需要说明的是，电致显示器件位于子像素区域，本公开实施例仅是示意出了子像素的排布方式，没有示意出像素驱动电路。
需要说明的是，在实际工艺中，由于工艺条件的限制或其他因素，上述各特征中的相同和等于并不能完全相同，可能会有一些偏差，因此上述各特征之间的相同关系只要大致满足上述条件即可，均属于本公开的保护范围。例如，上述相同可以是在误差允许范围之内所允许的相同。
基于同一发明构思，本公开实施例还提供了上述显示面板的制备方法，如图8所示，可以包括如下步骤：
S01、在衬底基板的第一显示区域和第二显示区域中分别形成像素驱动电路；示例性地，在衬底基板上依次形成缓冲层125、有源层121、栅绝缘层126、栅极层122、层间介质层127、电容电极层123、层间绝缘层128、源漏电极层124以及平坦化层129。
S02、采用同一张精细金属掩膜板，在形成有像素驱动电路的衬底基板的第一显示区域和第二显示区域中分别形成电致显示器件；其中，精细金属掩膜板对应第一显示区域的开口密度和对应第二显示区域的开口密度相同。示例性地，在衬底基板上依次形成阳极111层，像素限定层、电致发光层112以及阴极层113。其中，采用同一精细金属掩膜板，在形成有像素驱动电路的衬底基板的第一显示区域和第二显示区域中分别形成电致显示器件中的电致发光层112。
基于同一发明构思，本公开实施例还提供了显示装置，如图7A与图7B所示，可以包括本公开实施例提供的上述显示面板10。由于该显示装置解决问题的原理与前述一种显示面板相似，因此该显示装置的实施可以参见前述显示面板的实施，重复之处不再赘述。
在具体实施时，本公开实施例提供的上述显示装置可以为如图7A与图7B所示的全面屏的手机。当然，本公开实施例提供的上述显示装置也可以为平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。对于该显示装置的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的，在此不做赘述，也不应作为对本公开的限制。
在具体实施时，在本公开实施例中，如图7A与图7B所示，显示面板10的周围具有手机中框20，在第二显示区域bb对应的显示面板10的背部可以设置传感器30(例如摄像头的感光器件，指纹传输器的感光器件)，为了提高传感器30接收到的光的强度以提高感光器件的性能，可以使传感器30和像素驱动电路在显示面板的衬底基板上的正投影不重叠。并且由于第二显示区域的像素驱动电路的个数相对第一显示区域减少，第二显示区域的透过率增大，因此将传感器30设置在第二显示区域对应的显示面板的背部，可以提高感光器件接收到的光的强度，从而提高传感器30的性能。比如显示面板需要搭载的智能功能如红外感应功能等感光元件，这样可以增强红外光的透过率，达到红外探测的目的。
本公开实施例提供的上述显示面板、其制备方法及显示装置，通过使第一显示区域aa和第二显示区域bb中的电致显示器件的分布密度相同，可以采用同一掩膜版制备电致显示器件。并且通过使第二显示区域bb中像素驱动电路的分布密度小于第一显示区域aa中像素驱动电路的分布密度，可以提高第二显示区域的透光度，因此可以将传感器等元件设置在第二显示区域bb内对应的显示面板的背部，从而可以取消传感器等元件原本需占用的边框空间，扩大显示屏的屏占比，做到极窄边框。即采用降低局部像素驱动电路分布密 度来增加屏幕透光率的方式来提高显示面板的屏占比。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (13)

  1. 一种显示面板，其中，包括：
    显示区域，具有多个像素单元，所述像素单元包括电致显示器件和用于驱动所述电致显示器件发光的像素驱动电路；所述电致显示器件包括：发光器件和虚拟发光器件；所述发光器件与所述像素驱动电路电性连接，所述虚拟发光器件与所述像素驱动电路不连接；
    所述显示区域包括第一显示区域和第二显示区域；
    在所述第一显示区域和所述第二显示区域，所述电致显示器件的分布密度相同，且所述第二显示区域中像素驱动电路的密度小于所述第一显示区域中像素驱动电路的密度。
  2. 如权利要求1所述的显示面板，其中，一个所述发光器件与一个所述像素驱动电路对应电连接。
  3. 如权利要求1所述的显示面板，其中，所述第二显示区域内，至少两个发光颜色相同的所述发光器件共同电连接同一所述像素驱动电路。
  4. 如权利要求3所述的显示面板，其中，所述第二显示区域内，至少部分电连接同一所述像素驱动电路的发光器件排列为至少两列。
  5. 如权利要求4所述的显示面板，其中，所述发光器件包括：红色发光器件、绿色发光器件和蓝色发光器件；
    所述第二显示区域内，电连接同一所述像素驱动电路的红色发光器件排列为至少两列，且相邻列中的红色发光器件错位排列；
    所述第二显示区域内，电连接同一所述像素驱动电路的蓝色发光器件排列为至少两列，且相邻列中的蓝色发光器件错位排列。
  6. 如权利要求5所述的显示面板，其中，所述第二显示区域内，部分电连接同一所述像素驱动电路的绿色发光器件排列为至少两列，且相邻列中的至少部分绿色发光器件同行排列；
    所述第二显示区域内，其余部分电连接同一所述像素驱动电路的绿色发 光器件排列为一列。
  7. 如权利要求6所述的显示面板，其中，所述第二显示区域内，电连接同一所述像素驱动电路的绿色发光器件排列为至少两列，且相邻列中的绿色发光器件错位排列。
  8. 如权利要求2-7任一项所述的显示面板，其中，所述像素驱动电路包括驱动晶体管，所述第二显示区域内，所述驱动晶体管通过阳极走线与对应的发光器件电连接。
  9. 如权利要求1-8任一项所述的显示面板，其中，所述第二显示区域的至少部分边与所述显示区域的至少部分边重合，并且，所述第二显示区域的其余部分与所述第一显示区域相切。
  10. 如权利要求1-9任一项所述的显示面板，其中，所述第一显示区域包围所述第二显示区域设置。
  11. 一种显示装置，其中，包括如权利要求1-10任一项所述的显示面板。
  12. 如权利要求11所述的显示装置，其中，所述第二显示区域对应的所述显示面板的背部设置有传感器，所述传感器和所述像素驱动电路在所述显示面板的正投影不交叠。
  13. 一种如权利要求1-12任一项所述的显示面板的制备方法，包括：
    在衬底基板的第一显示区域和第二显示区域中分别形成所述像素驱动电路；
    采用同一张精细金属掩膜板，在形成有所述像素驱动电路的衬底基板的第一显示区域和第二显示区域中分别形成所述电致显示器件；其中，所述精细金属掩膜板对应所述第一显示区域的开口密度和对应所述第二显示区域的开口密度相同。
PCT/CN2019/114732 2019-01-25 2019-10-31 显示面板、其制备方法及显示装置 WO2020151289A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/768,497 US11322567B2 (en) 2019-01-25 2019-10-31 Display panel, manufacture method thereof and display apparatus
US17/699,238 US11716876B2 (en) 2019-01-25 2022-03-21 Display panel, manufacture method thereof and display apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910072755.5A CN109584794A (zh) 2019-01-25 2019-01-25 一种显示面板及显示装置
CN201910072755.5 2019-01-25

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/768,497 A-371-Of-International US11322567B2 (en) 2019-01-25 2019-10-31 Display panel, manufacture method thereof and display apparatus
US17/699,238 Continuation US11716876B2 (en) 2019-01-25 2022-03-21 Display panel, manufacture method thereof and display apparatus

Publications (1)

Publication Number Publication Date
WO2020151289A1 true WO2020151289A1 (zh) 2020-07-30

Family

ID=65917971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/114732 WO2020151289A1 (zh) 2019-01-25 2019-10-31 显示面板、其制备方法及显示装置

Country Status (3)

Country Link
US (2) US11322567B2 (zh)
CN (2) CN109584794A (zh)
WO (1) WO2020151289A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111883571A (zh) * 2020-08-06 2020-11-03 京东方科技集团股份有限公司 显示背板、显示装置、掩膜版、蒸镀方法和显示方法
CN112216217A (zh) * 2020-10-15 2021-01-12 厦门天马微电子有限公司 显示面板和显示装置
GB2600531A (en) * 2020-09-03 2022-05-04 Lg Display Co Ltd Display panel and display device including the same
GB2622116A (en) * 2020-01-30 2024-03-06 Lg Display Co Ltd Display panel and display device including the same

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11711958B2 (en) * 2014-09-11 2023-07-25 Boe Technology Group Co., Ltd. Display panel and display device
CN109584794A (zh) * 2019-01-25 2019-04-05 京东方科技集团股份有限公司 一种显示面板及显示装置
CN114122102A (zh) 2019-01-28 2022-03-01 京东方科技集团股份有限公司 显示面板及其制造方法、显示装置
CN109637457B (zh) * 2019-02-14 2020-08-18 成都京东方光电科技有限公司 像素电路、显示面板及显示装置
CN110061038B (zh) * 2019-04-26 2021-08-06 武汉天马微电子有限公司 一种显示面板及显示装置
CN110224015B (zh) * 2019-06-21 2022-08-26 京东方科技集团股份有限公司 有机发光二极管面板以及oled发光装置
CN210245501U (zh) * 2019-07-03 2020-04-03 昆山国显光电有限公司 阵列基板、显示面板及显示装置
CN110349543A (zh) * 2019-07-25 2019-10-18 武汉华星光电技术有限公司 液晶显示装置及其亮度补偿方法
KR20210013493A (ko) * 2019-07-26 2021-02-04 삼성디스플레이 주식회사 표시 장치
CN110570774A (zh) * 2019-08-09 2019-12-13 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN110518037B (zh) * 2019-08-26 2022-10-14 武汉天马微电子有限公司 一种显示面板及显示装置
CN115148780A (zh) * 2019-08-27 2022-10-04 武汉天马微电子有限公司 一种显示面板和显示装置
CN110767160A (zh) * 2019-10-25 2020-02-07 深圳市华星光电半导体显示技术有限公司 像素单元及显示面板
CN110783386B (zh) * 2019-10-29 2020-12-25 昆山国显光电有限公司 显示面板及显示装置
CN110782807B (zh) * 2019-10-30 2020-08-28 昆山国显光电有限公司 显示面板及显示装置
CN110783487A (zh) * 2019-10-31 2020-02-11 Oppo广东移动通信有限公司 显示装置及电子设备
EP4044162A4 (en) * 2019-10-31 2023-01-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. DISPLAY DEVICE AND ELECTRONIC DEVICE
CN110619837A (zh) * 2019-10-31 2019-12-27 Oppo广东移动通信有限公司 显示装置和电子设备
EP4016513A4 (en) * 2019-10-31 2022-09-28 Guangdong Oppo Mobile Telecommunications Corp., Ltd. DISPLAY DEVICE AND ELECTRONIC DEVICE
CN110767097B (zh) * 2019-11-27 2021-12-31 武汉天马微电子有限公司 一种显示面板及显示装置
CN111129085A (zh) * 2019-12-12 2020-05-08 武汉华星光电半导体显示技术有限公司 一种显示面板及其显示装置
CN111063712A (zh) * 2019-12-12 2020-04-24 武汉华星光电半导体显示技术有限公司 像素结构及显示装置
CN110956925A (zh) * 2019-12-25 2020-04-03 北京集创北方科技股份有限公司 显示装置、电子设备和对显示面板进行老化补偿的方法
KR20210085902A (ko) 2019-12-31 2021-07-08 엘지디스플레이 주식회사 표시장치
KR20210100786A (ko) * 2020-02-06 2021-08-18 삼성디스플레이 주식회사 표시 장치 및 그 구동 방법
KR20210116734A (ko) * 2020-03-12 2021-09-28 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
CN111969009B (zh) * 2020-07-30 2024-03-15 合肥维信诺科技有限公司 显示面板及掩膜版组
CN114220384B (zh) * 2020-09-18 2023-06-20 京东方科技集团股份有限公司 显示面板及其驱动方法、显示装置
US11735109B2 (en) * 2020-10-19 2023-08-22 Lg Display Co., Ltd. Display panel and display device using the same
CN112634809B (zh) * 2020-12-24 2022-10-11 昆山国显光电有限公司 一种显示面板及显示装置
CN113178537B (zh) * 2021-04-27 2023-01-17 武汉天马微电子有限公司 一种显示面板及显示装置
CN113241014B (zh) * 2021-05-21 2022-09-20 厦门天马微电子有限公司 一种显示面板及显示装置
CN113327543B (zh) * 2021-05-28 2023-06-20 京东方科技集团股份有限公司 显示基板及其驱动方法、显示装置
CN113362759B (zh) * 2021-06-24 2023-10-03 厦门天马微电子有限公司 一种微型发光二极管显示面板及显示装置
KR20230018023A (ko) * 2021-07-29 2023-02-07 엘지디스플레이 주식회사 표시장치와 그 구동 방법
CN114464658B (zh) * 2022-01-29 2023-05-02 昆山国显光电有限公司 显示面板及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018013718A (ja) * 2016-07-22 2018-01-25 株式会社ジャパンディスプレイ 表示装置および表示装置の駆動方法
CN207338380U (zh) * 2017-07-21 2018-05-08 京东方科技集团股份有限公司 一种电致发光显示面板及显示装置
CN108922900A (zh) * 2018-06-28 2018-11-30 厦门天马微电子有限公司 一种显示装置及其显示方法
CN109192076A (zh) * 2018-11-02 2019-01-11 京东方科技集团股份有限公司 一种显示面板和显示装置
CN208386635U (zh) * 2018-06-04 2019-01-15 Oppo广东移动通信有限公司 显示装置
CN109584794A (zh) * 2019-01-25 2019-04-05 京东方科技集团股份有限公司 一种显示面板及显示装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545344B (zh) * 2013-11-07 2015-09-30 京东方科技集团股份有限公司 像素结构及其制造方法、发光器件、阵列基板和显示装置
KR102465379B1 (ko) * 2015-12-02 2022-11-10 삼성디스플레이 주식회사 디스플레이 장치
CN205355055U (zh) * 2016-02-18 2016-06-29 京东方科技集团股份有限公司 一种像素排列结构、显示面板及显示装置
CN107194321B (zh) * 2017-04-27 2020-04-21 Oppo广东移动通信有限公司 显示屏、显示装置及移动终端
CN107731870B (zh) * 2017-09-28 2020-12-22 上海天马有机发光显示技术有限公司 有机发光二极管像素结构及包含其的显示面板、显示装置
CN107819018B (zh) * 2017-10-31 2020-11-10 武汉天马微电子有限公司 一种电致发光显示面板及显示装置
CN108279523B (zh) * 2018-02-13 2021-04-16 厦门天马微电子有限公司 显示面板和显示装置
CN108615746A (zh) * 2018-04-28 2018-10-02 武汉天马微电子有限公司 显示面板和显示装置
US10950674B2 (en) * 2018-12-25 2021-03-16 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Display panel
CN114823810A (zh) * 2019-01-15 2022-07-29 武汉天马微电子有限公司 显示面板以及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018013718A (ja) * 2016-07-22 2018-01-25 株式会社ジャパンディスプレイ 表示装置および表示装置の駆動方法
CN207338380U (zh) * 2017-07-21 2018-05-08 京东方科技集团股份有限公司 一种电致发光显示面板及显示装置
CN208386635U (zh) * 2018-06-04 2019-01-15 Oppo广东移动通信有限公司 显示装置
CN108922900A (zh) * 2018-06-28 2018-11-30 厦门天马微电子有限公司 一种显示装置及其显示方法
CN109192076A (zh) * 2018-11-02 2019-01-11 京东方科技集团股份有限公司 一种显示面板和显示装置
CN109584794A (zh) * 2019-01-25 2019-04-05 京东方科技集团股份有限公司 一种显示面板及显示装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2622116A (en) * 2020-01-30 2024-03-06 Lg Display Co Ltd Display panel and display device including the same
CN111883571A (zh) * 2020-08-06 2020-11-03 京东方科技集团股份有限公司 显示背板、显示装置、掩膜版、蒸镀方法和显示方法
GB2600531A (en) * 2020-09-03 2022-05-04 Lg Display Co Ltd Display panel and display device including the same
GB2600531B (en) * 2020-09-03 2022-12-07 Lg Display Co Ltd Display panel and display device including the same
US11818934B2 (en) 2020-09-03 2023-11-14 Lg Display Co., Ltd. Display panel and display device including the same
CN112216217A (zh) * 2020-10-15 2021-01-12 厦门天马微电子有限公司 显示面板和显示装置
CN112216217B (zh) * 2020-10-15 2022-10-04 厦门天马微电子有限公司 显示面板和显示装置

Also Published As

Publication number Publication date
CN114783369A (zh) 2022-07-22
US11322567B2 (en) 2022-05-03
CN109584794A (zh) 2019-04-05
US20210217821A1 (en) 2021-07-15
US20220254839A1 (en) 2022-08-11
US11716876B2 (en) 2023-08-01

Similar Documents

Publication Publication Date Title
WO2020151289A1 (zh) 显示面板、其制备方法及显示装置
US10756136B1 (en) Display panel and display device
US11910683B2 (en) Display panel and display device
JP7329685B2 (ja) 表示パネル
US11645966B2 (en) Display panel and display device
CN112038381B (zh) 显示面板及显示装置
US20220157898A1 (en) Display panel and driving method thereof and display apparatus
WO2023000830A1 (zh) 显示模组和显示设备
EP3284105B1 (en) Organic light-emitting diode array substrate, method of manufacturing the same, and related display apparatus
JP7453254B2 (ja) 表示基板及び表示装置
CN110518051B (zh) 一种有机电致发光显示面板及显示装置
CN113506539B (zh) 显示模组和显示设备
WO2022205858A1 (zh) 显示面板及显示装置
KR20170113866A (ko) 디스플레이장치
JP2022539621A (ja) ディスプレイパネル及びその製造方法、表示装置
CN109148545B (zh) 一种显示面板和显示装置
WO2022110739A9 (zh) 显示面板及显示装置
CN111710708A (zh) 显示面板以及显示装置
US11335748B2 (en) Transparent OLED substrate, display panel and OLED substrate
WO2020233698A1 (zh) 显示基板和显示装置
CN214542235U (zh) 显示面板及显示装置
US20230345776A1 (en) Display panel, display device and method for manufacturing display pane
WO2022110015A1 (zh) 显示基板、显示面板、显示装置
WO2022133813A1 (zh) 显示面板和显示装置
CN219660310U (zh) 像素排布、显示基板和显示装置

Legal Events

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

Ref document number: 19910993

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19910993

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 19910993

Country of ref document: EP

Kind code of ref document: A1

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

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 28.03.2022)

122 Ep: pct application non-entry in european phase

Ref document number: 19910993

Country of ref document: EP

Kind code of ref document: A1