WO2024066607A1 - 显示背板及显示装置 - Google Patents

显示背板及显示装置 Download PDF

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Publication number
WO2024066607A1
WO2024066607A1 PCT/CN2023/104811 CN2023104811W WO2024066607A1 WO 2024066607 A1 WO2024066607 A1 WO 2024066607A1 CN 2023104811 W CN2023104811 W CN 2023104811W WO 2024066607 A1 WO2024066607 A1 WO 2024066607A1
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WIPO (PCT)
Prior art keywords
light
emitting unit
emitting
contact terminal
units
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Application number
PCT/CN2023/104811
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English (en)
French (fr)
Inventor
李文豪
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武汉华星光电技术有限公司
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Publication of WO2024066607A1 publication Critical patent/WO2024066607A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
    • H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
    • H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

Definitions

  • the present application relates to the field of display technology, and in particular to a display backplane and a display device.
  • Mini-LED Small-Light Emitting Diode
  • Mini-LED refers to LED technology with a light-emitting chip area size of 100-200 ⁇ m.
  • Mini-LED inherits the high efficiency, high brightness, high reliability and fast response time of inorganic LEDs, and has the characteristics of self-luminescence without the need for a backlight source. It has the advantages of energy saving, simple structure, small size and thinness. It has longer luminous life and higher brightness, as well as better material stability and no image imprinting. Applying it to the display backplane can realize regional dimming of multiple partitions of the display device to improve the display effect of the display device.
  • Mini-LED when Mini-LED is used as a backlight source, as the size of the lamp beads becomes smaller and smaller, there will still be a phenomenon of weak brightness between adjacent Mini-LED lamp beads, resulting in uneven overall brightness of the display backplane.
  • the present application provides a display backplane and a display device to improve the technical problem of uneven light mixing of a light emitting unit group in an existing display backplane.
  • the present application proposes a display backplane, comprising a substrate and a light-emitting layer disposed on the substrate, wherein the light-emitting layer comprises a plurality of light-emitting unit groups arranged along a first direction, and the light-emitting unit groups comprise a plurality of first light-emitting units and a plurality of second light-emitting units alternately arranged along a second direction;
  • the size of the first light emitting unit along the first direction is larger than the size of the second light emitting unit along the first direction, and the size of the first light emitting unit along the second direction is smaller than the size of the second light emitting unit along the second direction.
  • the first light emitting units and the second light emitting units in two adjacent light emitting unit groups are arranged in the same manner.
  • the first light emitting units and the second light emitting units in two adjacent light emitting unit groups are arranged in different ways;
  • first light-emitting units and a plurality of the second light-emitting units are arranged alternately, and the long side direction of two adjacent first light-emitting units is perpendicular to the long side direction of the second light-emitting unit.
  • a line connecting the center of the first light-emitting unit and the center of the second light-emitting unit is parallel to the first direction;
  • a line connecting the center of the first light emitting unit and the center of the second light emitting unit is parallel to the second direction.
  • the light-emitting layer includes a plurality of repeating units, and the repeating unit includes two of the first light-emitting units and two of the second light-emitting units;
  • a short side of one of the first light-emitting units that is away from another of the first light-emitting units and a long side of the second light-emitting unit that is adjacent to the first light-emitting unit that is away from another of the second light-emitting units are aligned along the first direction;
  • a long side of a first light emitting unit away from another first light emitting unit and a short side of an adjacent second light emitting unit away from another second light emitting unit are aligned along the second direction.
  • the spacing between two adjacent first light-emitting units and the second light-emitting units in the first direction is equal to the spacing between two adjacent first light-emitting units and the second light-emitting units in the second direction.
  • the display backplane further comprises a driving circuit layer disposed between the substrate and the light-emitting layer, the driving circuit layer comprising a thin film transistor and a power line;
  • the first light emitting unit and the second light emitting unit include a first contact terminal and a second contact terminal, the first contact terminal is electrically connected to a source or a drain in the thin film transistor, and the second contact terminal is electrically connected to the power line;
  • first contact terminal and the second contact terminal in the first light-emitting unit and the second light-emitting unit are arranged in different ways.
  • the first contact terminal and the second contact terminal in the first light-emitting unit and the second light-emitting unit are arranged along the first direction or the second direction;
  • a distance between the first contact terminal and the second contact terminal in the first light-emitting unit is greater than a distance between the first contact terminal and the second contact terminal in the second light-emitting unit.
  • the first contact terminal and the second contact terminal in the first light-emitting unit are arranged along the second direction, and the first contact terminal and the second contact terminal in the second light-emitting unit are arranged along the first direction.
  • the present application also provides a display device, including a display backplane, wherein the display backplane includes:
  • a light-emitting layer is disposed on the substrate, the light-emitting layer comprises a plurality of light-emitting unit groups arranged along a first direction, the light-emitting unit groups comprise a plurality of first light-emitting units and a plurality of second light-emitting units alternately arranged along a second direction;
  • the size of the first light emitting unit along the first direction is larger than the size of the second light emitting unit along the first direction, and the size of the first light emitting unit along the second direction is smaller than the size of the second light emitting unit along the second direction.
  • the first light emitting units and the second light emitting units in two adjacent light emitting unit groups are arranged in the same manner.
  • the first light emitting units and the second light emitting units in two adjacent light emitting unit groups are arranged in different ways;
  • first light-emitting units and a plurality of the second light-emitting units are arranged alternately, and the long side direction of two adjacent first light-emitting units is perpendicular to the long side direction of the second light-emitting unit.
  • a line connecting the center of the first light-emitting unit and the center of the second light-emitting unit is parallel to the first direction;
  • a line connecting the center of the first light emitting unit and the center of the second light emitting unit is parallel to the second direction.
  • the light-emitting layer includes a plurality of repeating units, and the repeating unit includes two of the first light-emitting units and two of the second light-emitting units;
  • a short side of one of the first light-emitting units that is away from another of the first light-emitting units and a long side of the second light-emitting unit that is adjacent to the first light-emitting unit that is away from another of the second light-emitting units are aligned along the first direction;
  • a long side of a first light emitting unit away from another first light emitting unit and a short side of an adjacent second light emitting unit away from another second light emitting unit are aligned along the second direction.
  • the distance between two adjacent first light-emitting units and the second light-emitting units in the first direction is equal to the distance between two adjacent first light-emitting units and the second light-emitting units in the second direction.
  • the display backplane further includes a driving circuit layer disposed between the substrate and the light-emitting layer, and the driving circuit layer includes a thin film transistor and a power line;
  • the first light emitting unit and the second light emitting unit include a first contact terminal and a second contact terminal, the first contact terminal is electrically connected to a source or a drain in the thin film transistor, and the second contact terminal is electrically connected to the power line;
  • first contact terminal and the second contact terminal in the first light-emitting unit and the second light-emitting unit are arranged in different ways.
  • the first contact terminal and the second contact terminal in the first light-emitting unit and the second light-emitting unit are arranged along the first direction or the second direction;
  • a distance between the first contact terminal and the second contact terminal in the first light-emitting unit is greater than a distance between the first contact terminal and the second contact terminal in the second light-emitting unit.
  • the first contact terminal and the second contact terminal in the first light-emitting unit are arranged along the second direction, and the first contact terminal and the second contact terminal in the second light-emitting unit are arranged along the first direction.
  • the aspect ratio of the first light-emitting unit or the second light-emitting unit is greater than 1.5:1.
  • the present application provides a display backplane and a display device;
  • the display backplane includes a substrate and a light-emitting layer arranged on the substrate, the light-emitting layer includes a plurality of light-emitting unit groups arranged along a first direction, the light-emitting unit groups include a plurality of first light-emitting units and a plurality of second light-emitting units alternately arranged along a second direction, the size of the first light-emitting unit along the first direction is larger than the size of the second light-emitting unit along the first direction, and the size of the first light-emitting unit along the second direction is smaller than the size of the second light-emitting unit along the second direction;
  • the display backplane provided by the present application is configured such that the size of the first light-emitting unit along the first direction is larger than the size of the second light-emitting unit along the first direction, and the size of the first light-emitting unit along the
  • FIG1 is a partial schematic diagram of a first arrangement of light-emitting units of a display backplane provided by an embodiment of the present application
  • FIG2 is a partial schematic diagram of a second arrangement of light-emitting units of a display backplane provided in an embodiment of the present application;
  • FIG3A is a partial schematic diagram of a third arrangement of light-emitting units of a display backplane provided in an embodiment of the present application.
  • FIG3B is a partial schematic diagram of another arrangement method of the light-emitting units of the display backplane provided in the embodiment of the present application;
  • FIG4 is a cross-sectional view of the back plate at A-A in FIG3A ;
  • FIG. 5 is a partial schematic diagram of a display backplane provided in an embodiment of the present application.
  • the present application proposes a display backplane, comprising a substrate 100 and a light-emitting layer disposed on the substrate 100 , wherein the light-emitting layer comprises a plurality of light-emitting unit groups 300 arranged along a first direction D1 , and the light-emitting unit groups 300 comprise a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32 alternately arranged along a second direction D2 ;
  • the size of the first light emitting unit 31 along the first direction D1 is larger than the size of the second light emitting unit 32 along the first direction D1, and the size of the first light emitting unit 31 along the second direction D2 is smaller than the size of the second light emitting unit 32 along the second direction D2.
  • the display backplane provided in the present application makes the size of the first light-emitting unit 31 along the first direction D1 larger than the size of the second light-emitting unit 32 along the first direction D1, and the size of the first light-emitting unit 31 along the second direction D2 smaller than the size of the second light-emitting unit 32 along the second direction D2, so that the overlapping area of the light-emitting light pattern of at least part of the first light-emitting unit 31 and the light-emitting light pattern of the adjacent second light-emitting unit 32 in the first direction D1 and the overlapping area in the second direction D2 are close to each other, thereby making the overall light emission of the display backplane more uniform, reducing the shadow area formed by insufficient light, and thus avoiding the problem of uneven brightness of the display backplane, and further improving the light emission effect of the display backplane.
  • FIG. 1 is a partial schematic diagram of a first arrangement mode of light-emitting units of a display backplane provided in an embodiment of the present application; wherein the display backplane includes a substrate 100 and a light-emitting layer disposed on the substrate 100, the light-emitting layer includes a plurality of light-emitting unit groups 300 arranged along a first direction D1, the light-emitting unit groups 300 include a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32 alternately arranged along a second direction D2, the size of the first light-emitting unit 31 along the first direction D1 is larger than the size of the second light-emitting unit 32 along the first direction D1, and the size of the first light-emitting unit 31 along the second direction D2 is smaller than the size of the second light-emitting unit 32 along the second direction D2;
  • the first light emitting unit 31 and the second light emitting unit 32 are both rectangular, and the second direction D2 is perpendicular to the first direction D1;
  • the long side direction of the first light emitting unit 31 is perpendicular to the long side direction of the second light emitting unit 32 .
  • the long sides of the first light emitting units 31 are arranged along the second direction D2, and the short sides of the second light emitting units 32 are arranged along the second direction D2.
  • the first light emitting unit 31 and the second light emitting unit 32 are both rectangular, the first light emitting unit 31 and the second light emitting unit 32 both emit elliptical light spots. This is because the light patterns of the first light emitting unit 31 or the second light emitting unit 32 in the long side direction and the short side direction are inconsistent, and the long side light pattern is larger than the short side light pattern at the same angle, thereby forming an elliptical light spot that is long along the long side and short along the short side.
  • the first light emitting unit 31 emits a first elliptical light pattern 311 along the second direction D2
  • the second light emitting unit 32 emits a second elliptical light pattern 321 along the first direction D1; wherein the area of the first elliptical light pattern 311 is equal to the area of the second elliptical light pattern 321.
  • the first light emitting unit 31 and the second light emitting unit 32 in two adjacent light emitting unit groups 300 are arranged in the same manner.
  • This arrangement can increase the arrangement spacing between the first light emitting unit 31 and the second light emitting unit 32 adjacent to it in each row of the light emitting unit groups 300, thereby reducing the number of light emitting units in each row of the light emitting unit groups 300, thereby reducing the manufacturing cost of the display backplane; at the same time, the overall light output of the display backplane is made more uniform, and the shadow area formed by insufficient light is reduced, thereby reducing the problem of uneven brightness of the display backplane and improving the light output effect of the display backplane.
  • the light-emitting light pattern of the first light-emitting unit 31 partially intersects with the light-emitting light pattern of the adjacent second light-emitting unit 32; the light of the elliptical light pattern emitted by the first light-emitting unit 31 in the second direction D2 and the light of the elliptical light pattern emitted by the adjacent second light-emitting unit 32 in the first direction D1 complement each other, thereby improving the light emitting effect of the display backplane.
  • the embodiment of the present application increases the area of the overlapping part S1 of the light pattern of the second light-emitting unit 32 in the first direction D1, and at the same time, reduces the area of the overlapping part S2 of the light pattern of the first light-emitting unit 31 in the second direction D2, so that the overlapping area of the light pattern of at least part of the first light-emitting unit 31 and the light pattern of the second light-emitting unit 32 adjacent to it in the first direction D1 is close to the
  • the aspect ratio of the first light-emitting unit 31 or the second light-emitting unit 32 is greater than 1.5:1
  • the light spot emitted by the first light-emitting unit 31 or the second light-emitting unit 32 is elliptical, and it is beneficial for the light of adjacent light-emitting units to complement each other, so that the overall light output of the display backplane is more uniform.
  • the center positions of the light emitting units in the light emitting unit groups 300 in two adjacent rows correspond one to one, and the light emitting units in the light emitting unit groups 300 in two adjacent rows correspond in sequence, and there will be no cross correspondence.
  • the first light emitting unit 31 or the second light emitting unit 32 emits light unevenly, the light of adjacent light emitting units intersects and the brightness is high, and a bright spot area will appear.
  • the light spot of the first light emitting unit 31 or the second light emitting unit 32 cannot be irradiated and the brightness is low, and a dark shadow area will appear, and the backlight screen will have uneven brightness.
  • the center positions of the first light-emitting units 31 or the second light-emitting units 32 of two adjacent rows of the light-emitting unit groups 300 to correspond one to one (that is, in the second direction D2, the line L1 between the center of the first light-emitting unit 31 and the center of the second light-emitting unit 32 is set along the second direction D2, and in the first direction D1, the line L2 between the center of the first light-emitting unit 31 and the center of the second light-emitting unit 32 is set along the first direction D1), and the long side direction of the first light-emitting unit 31 is perpendicular to the long side direction of the second light-emitting unit 32, the light of the elliptical light pattern emitted by the first light-emitting unit 31 in the second direction D2 and the light of the elliptical light pattern emitted by the adjacent second light-emitting unit 32 in the first direction D1 complement each other, thereby making the overall light output of the display backplane more
  • the distance a between two adjacent first light-emitting units 31 and the second light-emitting units 32 in the first direction D1 is equal to the distance b between two adjacent first light-emitting units 31 and the second light-emitting units 32 in the second direction D2; this design can make the light spots emitted by the first light-emitting units 31 or the second light-emitting units 32 more evenly distributed in the display back panel, further improving the light output effect of the display back panel.
  • the first light-emitting unit 31 and the second light-emitting unit 32 are both mini light-emitting diode chips (Mini-LED); wherein the Mini-LED chip refers to an LED chip with a size between 50 and 200 ⁇ m.
  • the first light-emitting unit 31 and the second light-emitting unit 32 can be used as a backlight source of a display device, and can also be used as a self-luminous layer of a display device.
  • the present application proposes a display backplane, including a substrate 100 and a light-emitting layer arranged on the substrate 100, the light-emitting layer including a plurality of light-emitting unit groups 300 arranged along a first direction D1, the light-emitting unit group 300 including a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32 alternately arranged along a second direction D2, the size of the first light-emitting unit 31 along the first direction D1 being larger than the size of the second light-emitting unit 32 along the first direction D1, and the size of the first light-emitting unit 31 along the second direction D2 being smaller than the size of the second light-emitting unit 32 along the second direction D2; the display backplane provided by the present application is configured such that the first light-emitting unit 31 is arranged along the first direction D1, and the second light
  • the size of the first light-emitting unit 31 along the second direction D2 is smaller than the size of the second light-emitting unit 32 along the second direction D2, so that the long side directions of the plurality of first light-emitting units 31 are perpendicular to the long side directions of the plurality of second light-emitting units 32, so that the overlapping area of the light-emitting light pattern of at least part of the first light-emitting unit 31 and the light-emitting light pattern of the adjacent second light-emitting unit 32 in the first direction D1 is close to the overlapping area in the second direction D2, so that the overall light output of the display backplane is more uniform, and the shadow area formed due to insufficient light is reduced, thereby avoiding the problem of uneven brightness of the display backplane, and further improving the light output effect of the display backplane.
  • FIG. 2 is a partial schematic diagram of a second arrangement of light-emitting units of a display backplane provided in an embodiment of the present application; wherein the structure of the display backplane in the second embodiment of the present application is the same as or similar to the structure of the display backplane in the first embodiment of the present application, and the only difference is that the arrangement of the first light-emitting units 31 and the second light-emitting units 32 in two adjacent light-emitting unit groups 300 is different;
  • first direction D1 a plurality of the first light emitting units 31 and a plurality of the second light emitting units 32 are arranged alternately, and the long side direction of two adjacent first light emitting units 31 is perpendicular to the long side direction of the second light emitting unit 32 .
  • a line L4 connecting the center of the first light emitting unit 31 and the center of the second light emitting unit 32 is parallel to the first direction D1;
  • a line L3 connecting the center of the first light emitting unit 31 and the center of the second light emitting unit 32 is parallel to the second direction D2.
  • the light pattern of the first light-emitting unit 31 and the light patterns of the two adjacent first light-emitting units 31 have an overlapping part S3; in the second direction D2, the light pattern of the first light-emitting unit 31 and the light patterns of the two adjacent second light-emitting units 32 have an overlapping part S4; relative to the first embodiment of the present application, in the first direction D1, the area of the overlapping part S1 of the light pattern of the second light-emitting unit 32 is further increased, and at the same time, in the second direction D2, the area of the overlapping part S2 of the light pattern of the first light-emitting unit 31 is further reduced, so that the overlapping area of the light pattern of at least part of the first light-emitting unit 31 and the light pattern of the second light-emitting unit 32 adjacent to it in the first direction D1 is close to the overlapping area in the second direction D2.
  • the second embodiment of the present application is characterized in that, in the first direction D1, by alternately arranging a plurality of the first light-emitting units 31 and a plurality of the second light-emitting units 32, the long side direction of two adjacent first light-emitting units 31 is perpendicular to the long side direction of the second light-emitting unit 32; and in the first direction D1, a line L4 connecting the center of the first light-emitting unit 31 and the center of the second light-emitting unit 32 is parallel to the first direction D1, and in the second direction D2, a line L3 connecting the center of the first light-emitting unit 31 and the center of the second light-emitting unit 32 is parallel to the second direction D2, so that the elliptical light spot emitted by the first light-emitting unit 31 can complement the elliptical light spots emitted by at least four adjacent second light-emitting units 32, thereby making the overall light output of the display backplan
  • FIG. 3A is a partial schematic diagram of a third arrangement mode of the light-emitting units of the display backplane provided in an embodiment of the present application; wherein the structure of the display backplane in the third embodiment of the present application is the same as or similar to the structure of the display backplane in the second embodiment of the present application, and the only difference is that the light-emitting layer includes a plurality of repeating units 30, and the repeating unit 30 includes two of the first light-emitting units 31 and two of the second light-emitting units 32;
  • each of the repeating units 30 one first light emitting unit 31 and one second light emitting unit 32 are sequentially arranged in the first direction D1 ; one first light emitting unit 31 and one second light emitting unit 32 are sequentially arranged in the second direction D2 .
  • a connecting line L6 formed by a short side of one of the first light-emitting units 31 away from another of the first light-emitting units 31 and a long side of the second light-emitting unit 32 adjacent thereto away from another of the second light-emitting units 32 is aligned along the first direction D1;
  • a line L5 formed by a long side of one first light emitting unit 31 away from another first light emitting unit 31 and a short side of an adjacent second light emitting unit 32 away from another second light emitting unit 32 is aligned along the second direction D2.
  • the light pattern of the first light-emitting unit 31 and the light patterns of its two adjacent first light-emitting units 31 have an overlapping part S5; in the second direction D2, the light pattern of the first light-emitting unit 31 and the light patterns of its two adjacent second light-emitting units 32 have an overlapping part S6; relative to the second embodiment of the present application, in the first direction D1, the area of the overlapping part S5 of the light pattern of the second light-emitting unit 32 is further increased, and at the same time, in the second direction D2, the area of the overlapping part S6 of the light pattern of the first light-emitting unit 31 is further reduced, so that the overlapping area of at least part of the light pattern of the first light-emitting unit 31 and the light pattern of the second light-emitting unit 32 adjacent to it in the first direction D1 is close to the overlapping area in the second direction D2.
  • Figure 3B is another partial schematic diagram of the third arrangement method of the light-emitting units of the display backplane provided in an embodiment of the present application; wherein, in each of the repeating units 30, one second light-emitting unit 32 and one first light-emitting unit 31 are arranged in sequence in the first direction D1; and one second light-emitting unit 32 and one first light-emitting unit 31 are arranged in sequence in the second direction D2.
  • a line L8 formed by a long side of one second light emitting unit 32 away from another second light emitting unit 32 and a short side of the adjacent first light emitting unit 31 away from another first light emitting unit 31 is aligned along the first direction D1;
  • a line L7 formed by a short side of one second light emitting unit 32 away from another second light emitting unit 32 and a long side of the adjacent first light emitting unit 31 away from another first light emitting unit 31 is aligned along the second direction D2.
  • the light pattern of the second light emitting unit 32 has an overlapping part S8 with the light patterns of the two adjacent first light emitting units 31; in the second direction D2, the light pattern of the second light emitting unit 32 has an overlapping part S7 with the light patterns of the two adjacent first light emitting units 31; relative to the second embodiment of the present application, in the first direction D1, the area of the overlapping part S8 between the light pattern of the second light emitting unit 32 and the light patterns of the two adjacent first light emitting units 31 is further increased, and at the same time, in the second direction D2, the area of the overlapping part S7 with the light patterns of the two adjacent first light emitting units 31 is further reduced, so that the overlapping area of at least part of the light pattern of the second light emitting unit 32 and the light pattern of the first light emitting unit 31 adjacent to it in the first direction D1 is close to the overlapping area in the second direction D2.
  • Figure 4 is a cross-sectional view of the display backplane at A-A in Figure 3A; wherein the display backplane includes a plurality of pixel islands 10, each of the pixel islands 10 includes a substrate 100 and a driving circuit layer 200; the substrate 100 includes a first through hole 101; the driving circuit layer 200 is located on the substrate 100, and the driving circuit layer 200 at least includes a connecting electrode 201, and the connecting electrode 201 corresponds to the first through hole 101; wherein the display backplane also includes a connecting wire 20 located on a side of the substrate 100 away from the driving circuit layer 200, and the connecting electrodes 201 of two adjacent pixel islands 10 are electrically connected to the two ends of the connecting wire 20 through the corresponding first through holes 101, respectively.
  • the display backplane also includes a connecting wire 20 located on a side of the substrate 100 away from the driving circuit layer 200, and the connecting electrodes 201 of two adjacent pixel islands 10 are electrically connected to the two ends of the connecting wire 20 through the corresponding first through holes 101, respectively.
  • the driving circuit layer 200 includes an active layer 202, a first metal layer 203 and a second metal layer 204; the active layer 202 is located on the substrate 100; the first metal layer 203 is located on the active layer 202, and the first metal layer 203 includes a gate 2031; the second metal layer 204 is located on the first metal layer 203, and the second metal layer 204 includes a source 2041, a drain 2042 and a power line 2043, and the source 2041 and the drain 2042 are electrically connected to two ends of the active layer 202 respectively;
  • the substrate 100 is provided with a second through hole 102 and a third through hole 103 , the source electrode 2041 is electrically connected to the connecting wire 20 through the second through hole 102 , and the power line 2043 is electrically connected to the connecting wire 20 through the third through hole 103 .
  • the material of the active layer 202 is polysilicon
  • the first contact terminal 301 is electrically connected to the N-type semiconductor inside the light-emitting unit
  • the second contact terminal 302 is electrically connected to the P-type semiconductor inside the light-emitting unit.
  • the source 2041 and the power line 2043 can be electrically connected to the connecting wire 20 through the second through hole 102 and the third through hole 103 respectively, and the electrical signal is transmitted to the source 2041 and the power line 2043 through the connecting wire 20, that is, the connecting wire 20 with better ductility can be used to power the display backplane from the bottom of the pixel island 10.
  • each of the pixel islands 10 is correspondingly provided with a first light-emitting unit 31 or a second light-emitting unit 32, the first light-emitting unit 31 or the second light-emitting unit 32 is located on the driving circuit layer 200, and the first light-emitting unit 31 or the second light-emitting unit 32 includes a first contact terminal 301 and a second contact terminal 302; the first contact terminal 301 is electrically connected to the drain 2042, and the second contact terminal 302 is electrically connected to the power line 2043.
  • a pixel island 10 may include any one of a red sub-pixel, a blue pixel, a green sub-pixel and a white sub-pixel, that is, a pixel island 10 may be provided with any one of a red light-emitting device, a green light-emitting device, a blue light-emitting device and a white light-emitting device.
  • the connecting electrode 201 is disposed in the same layer as the second metal layer 204. It should be noted that the connecting electrode 201 is used to connect two adjacent pixel islands 10, that is, to transmit electrical signals between two adjacent pixel islands 10. In this embodiment, by disposing the connecting electrode 201 in the same layer as the second metal layer 204, the connecting electrode 201 and the second metal layer 204 can be prepared in the same process, without adding an additional mask process, and will not cause an increase in production costs.
  • a conductive layer 400 is disposed on a surface of one side of the substrate 100 close to the driving circuit layer 200, and the conductive layer 400 includes a plurality of first conductive terminals 401, a plurality of second conductive terminals 402, and a plurality of third conductive terminals 403.
  • the first conductive terminal 401 is disposed corresponding to the first through hole 101
  • the second conductive terminal 402 is disposed corresponding to the second through hole 102
  • the third conductive terminal 403 is disposed corresponding to the third through hole 103.
  • connection electrode 201, the source electrode 2041 and the power line 2043 are all connected to the surface of the substrate 100 through vias, and the aperture of the vias is small, resulting in a small contact area between the connection electrode 201, the source electrode 2041 and the power line 2043 and the connection wire 20, and a large contact impedance.
  • a plurality of first conductive terminals 401, a plurality of second conductive terminals 402 and a plurality of third conductive terminals 403 are arranged on a surface of one side of the substrate 100 close to the driving circuit layer 200, and the connection electrode 201, the source electrode 2041 and the power line 2043 are electrically connected to the connection wire 20 through the above conductive terminals, so as to reduce the contact impedance and reduce the voltage drop.
  • the area of the first conductive terminal 401 in the direction perpendicular to the substrate 100 is larger than the area of the second conductive terminal 402 in the direction perpendicular to the substrate 100.
  • the power line 2043 is electrically connected to the first conductive terminal 401 and the second contact terminal 302 (the second conductive terminal 402 is not electrically connected to the second contact terminal 302), thereby making the contact impedance between the first conductive terminal 401 and the connecting wire 20 greater than the contact impedance between the second conductive terminal 402 and the connecting wire 20; therefore, the area of the first conductive terminal 401 in the direction perpendicular to the substrate 100 is increased to reduce the contact impedance and reduce the voltage drop.
  • the first through hole 101, the second through hole 102 and the third through hole 103 are filled with a conductive material 500. It can be understood that in this embodiment, the conductive material 500 is filled in the first through hole 101, the second through hole 102 and the third through hole 103 to improve the conductive effect of connecting the electrode 201, the source 2041 and the power line 2043 with the connecting wire 20.
  • the display backplane further includes a buffer layer 600, a passivation layer 700, a third metal layer 800 and an insulating layer 900, wherein the buffer layer 600 is located between the substrate 100 and the driving circuit layer 200, the passivation layer 700 is located on the second metal layer 204, the third metal layer 800 is located on the passivation layer 700, and the insulating layer 900 is located between the third metal layer 800 and the first light-emitting unit 31 or the second light-emitting unit 32, and the third metal layer 800 includes a plurality of first conductive electrodes 801 and a plurality of second conductive electrodes 802, wherein the first contact terminal 301 of the first light-emitting unit 31 or the second light-emitting unit 32 is electrically connected to the drain 2042 through the first conductive electrode 801. The second contact terminal 302 of the first light-emitting unit 31 or the second light-emitting unit 32 is electrically connected to the power line 2043 through the second conductive electrode 802.
  • the driving circuit layer 200 further includes a first gate insulating layer 205, a second gate insulating layer 206, a second gate layer 207 and an interlayer insulating layer 208, wherein the first gate insulating layer 205 is located between the active layer 202 and the first metal layer 203, the second gate insulating layer 206 is located on the first metal layer 203, the second gate layer 207 is located on the second gate insulating layer 206, and the interlayer insulating layer 208 is located on the second gate layer 207.
  • the second metal layer 204 is located between the interlayer insulating layer 208 and the passivation layer 700.
  • the first contact terminal 301 and the second contact terminal 302 in the first light-emitting unit 31 and the second light-emitting unit 32 are arranged in different ways.
  • first contact terminal 301 and the second contact terminal 302 in the first light emitting unit 31 and the second light emitting unit 32 are arranged along the second direction D2 (that is, the two contact terminals in the first light emitting unit 31 are arranged along the long side direction, and the two contact terminals in the second light emitting unit 32 are arranged along the short side direction);
  • the distance between the first contact terminal 301 and the second contact terminal 302 in the first light-emitting unit 31 is greater than the distance between the first contact terminal 301 and the second contact terminal 302 in the second light-emitting unit 32; this design is because the size of the short side is smaller than the size of the long side, so the distance between the two contact terminals arranged along the short side direction is also reduced accordingly.
  • the first contact terminal 301 and the second contact terminal 302 in the first light-emitting unit 31 and the second light-emitting unit 32 are arranged along the first direction D1 (that is, the two contact terminals in the first light-emitting unit 31 are arranged along the short side direction, and the two contact terminals in the second light-emitting unit 32 are arranged along the long side direction);
  • the distance between the first contact terminal 301 and the second contact terminal 302 in the first light-emitting unit 31 is smaller than the distance between the first contact terminal 301 and the second contact terminal 302 in the second light-emitting unit 32; this design is because the size of the short side is smaller than the size of the long side, so the distance between the two contact terminals arranged along the short side direction is also reduced accordingly.
  • the first contact terminal 301 and the second contact terminal 302 in the first light-emitting unit 31 are arranged along the second direction D2, and the first contact terminal 301 and the second contact terminal 302 in the second light-emitting unit 32 are arranged along the first direction D1 (that is, the two contact terminals in the first light-emitting unit 31 are arranged along the long side direction, and the two contact terminals in the second light-emitting unit 32 are also arranged along the long side direction).
  • the third embodiment of the present application can make the overlapping area of the light pattern of the first light-emitting unit 31 and the light pattern of the four adjacent second light-emitting units 32 in the first direction D1 and the overlapping area in the second direction D2 close to each other, so that the elliptical light spot emitted by the first light-emitting unit 31 can at least more evenly complement the elliptical light spots emitted by the four adjacent second light-emitting units 32, thereby making the overall light output of the display back panel more uniform.
  • FIG. 5 is a partial schematic diagram of a display backplane provided in an embodiment of the present application, wherein the display backplane is used to provide a backlight source for a display device.
  • the display backplane includes a bottom plate 57 and a side plate 58 integrally formed with the bottom plate 57, and the side of the substrate 100 away from the first light-emitting unit 31 or the second light-emitting unit 32 is bonded to the bottom plate 57 by a first adhesive 51; a first encapsulation layer 54 is also provided on the bottom plate 57, and the first encapsulation layer 54 completely covers the first light-emitting unit 31 and the second light-emitting unit 32; an optical film group 55 is also provided on the side of the first encapsulation layer 54 away from the substrate 100, and the optical film group 55 includes one or more of an anti-red and green film, a quantum dot film, a spectroscopic film, a brightness enhancement film, a diffusion film, etc., and the quantity, size and combination of each type are arbitrary, depending on the actual visual effect.
  • a second encapsulation layer 56 is provided on the side of the bottom plate 57 away from the substrate 100 , one end of the second encapsulation layer 56 is bonded to the optical film group 55 via a second adhesive 52 , and the other end of the second encapsulation layer 56 away from the substrate 100 is bonded to the side plate 58 via a third adhesive 53 .
  • the present application also proposes a display device, which includes a display body and the above-mentioned display backplane, and the display body and the display backplane are combined into one.
  • the display device may include but is not limited to a mobile phone, a tablet computer, a computer monitor, a game console, a television, a display screen, a wearable device, and other life appliances or household appliances with display functions.
  • Figures 1 to 5 only illustrate the main structure of the display backplane, and the module chip, flexible circuit board, polarizer, protective film and other film layers included in the final form of the display device are not shown.
  • the final form of the display terminal may include such film layers.
  • film layers can be produced during the preparation process flow of the display backplane provided in an embodiment of the present invention or after the preparation process flow is completed, and will not be described in detail here.
  • the present application provides a display backplane and a display device;
  • the display backplane includes a substrate 100 and a light-emitting layer arranged on the substrate 100, the light-emitting layer includes a plurality of light-emitting unit groups 300 arranged along a first direction D1
  • the light-emitting unit group 300 includes a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32 alternately arranged along a second direction D2
  • the size of the first light-emitting unit 31 along the first direction D1 is larger than the size of the second light-emitting unit 32 along the first direction D1
  • the size of the first light-emitting unit 31 along the second direction D2 is smaller than the size of the second light-emitting unit 32 along the second direction D2
  • the display backplane provided by the present application is configured to be configured to be uniform light-emitting unit groups 300

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Abstract

本申请提供一种显示背板及显示装置；该显示背板包括沿第一方向排列的多个发光单元组，发光单元组包括沿第二方向交替排列的多个第一发光单元和多个第二发光单元，第一发光单元沿第一方向的尺寸大于第二发光单元沿第一方向的尺寸，第一发光单元沿第二方向的尺寸小于第二发光单元沿第二方向的尺寸。

Description

显示背板及显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示背板及显示装置。
 背景技术
迷你发光二极管(Mini-Light Emitting Diode，Mini-LED)技术是指发光芯片面积尺寸在100-200μm的LED技术。Mini-LED继承了无机LED的高效率、高亮度、高可靠度及响应时间快等特点，并且具自发光无需背光源的特性，更具节能、机构简易、体积小、薄型等优势。其具有更长的发光寿命和更高的亮度以及具有较佳的材料稳定性、无影像烙印等优点，将其应用于显示背板可以实现显示装置多分区的区域调光，以提升显示装置的显示效果。
 发明概述
然而现有技术中Mini-LED作为背光源时，随着灯珠尺寸的越来越小，相邻的Mini-LED灯珠之间依旧会存在亮度偏弱的现象，导致显示背板整体亮度不均的情况出现。
因此，亟需一种显示背板及显示装置以解决上述技术问题。
本申请提供一种显示背板及显示装置，以改善现有显示背板中的发光单元组混光不均的技术问题。
为解决上述问题，本申请提供的技术方案如下：
本申请提出了一种显示背板，包括基板及设置于所述基板上的发光层，所述发光层包括沿第一方向排列的多个发光单元组，所述发光单元组包括沿第二方向交替排列的多个第一发光单元和多个第二发光单元；
其中，所述第一发光单元沿所述第一方向的尺寸大于所述第二发光单元沿所述第一方向的尺寸，所述第一发光单元沿所述第二方向的尺寸小于所述第二发光单元沿所述第二方向的尺寸。
在本申请实施例提供的显示背板中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相同。
在本申请实施例提供的显示背板中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相异；
其中，在所述第一方向上，多个所述第一发光单元和多个所述第二发光单元交替排列，相邻两个所述第一发光单元的长边方向和所述第二发光单元的长边方向垂直。
在本申请实施例提供的显示背板中，在所述第一方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第一方向平行；以及，
在所述第二方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第二方向平行。
在本申请实施例提供的显示背板中，所述发光层包括多个重复单元，所述重复单元包括两个所述第一发光单元和两个所述第二发光单元；
其中，在每一所述重复单元中，在所述第一方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的短边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的长边沿所述第一方向对齐；
在所述第二方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的长边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的短边沿所述第二方向对齐。
在本申请实施例提供的显示背板中，在所述第一方向上的相邻两个所述第一发光单元和所述第二发光单元的间距，与在所述第二方向上的相邻两个所述第一发光单元和所述第二发光单元的间距相等。
在本申请实施例提供的显示背板中，所述显示背板还包括设置于所述基板与所述发光层之间的驱动电路层，所述驱动电路层包括薄膜晶体管以及电源线；
所述第一发光单元以及所述第二发光单元包括第一接触端子和第二接触端子，所述第一接触端子与所述薄膜晶体管内的源极或漏极电连接，所述第二接触端子与所述电源线电连接；
其中，所述第一发光单元和所述第二发光单元中的所述第一接触端子和所述第二接触端子的排列方式相异。
在本申请实施例提供的显示背板中，所述第一发光单元以及所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向或所述第二方向排列；
其中，所述第一发光单元中的所述第一接触端子和所述第二接触端子的间距大于所述第二发光单元中的所述第一接触端子和所述第二接触端子的间距。
在本申请实施例提供的显示背板中，所述第一发光单元中的所述第一接触端子和所述第二接触端子沿所述第二方向排列，所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向排列。
相应地，本申请还提供一种显示装置，包括显示背板，所述显示背板包括：
基板；
发光层，设置于所述基板上，所述发光层包括沿第一方向排列的多个发光单元组，所述发光单元组包括沿第二方向交替排列的多个第一发光单元和多个第二发光单元；
所述第一发光单元沿所述第一方向的尺寸大于所述第二发光单元沿所述第一方向的尺寸，所述第一发光单元沿所述第二方向的尺寸小于所述第二发光单元沿所述第二方向的尺寸。
在本申请实施例提供的显示装置中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相同。
在本申请实施例提供的显示装置中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相异；
其中，在所述第一方向上，多个所述第一发光单元和多个所述第二发光单元交替排列，相邻两个所述第一发光单元的长边方向和所述第二发光单元的长边方向垂直。
在本申请实施例提供的显示装置中，在所述第一方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第一方向平行；以及，
在所述第二方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第二方向平行。
在本申请实施例提供的显示装置中，所述发光层包括多个重复单元，所述重复单元包括两个所述第一发光单元和两个所述第二发光单元；
其中，在每一所述重复单元中，在所述第一方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的短边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的长边沿所述第一方向对齐；
在所述第二方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的长边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的短边沿所述第二方向对齐。
在本申请实施例提供的显示装置中，在所述第一方向上的相邻两个所述第一发光单元和所述第二发光单元的间距，与在所述第二方向上的相邻两个所述第一发光单元和所述第二发光单元的间距相等。
在本申请实施例提供的显示装置中，所述显示背板还包括设置于所述基板与所述发光层之间的驱动电路层，所述驱动电路层包括薄膜晶体管以及电源线；
所述第一发光单元以及所述第二发光单元包括第一接触端子和第二接触端子，所述第一接触端子与所述薄膜晶体管内的源极或漏极电连接，所述第二接触端子与所述电源线电连接；
其中，所述第一发光单元和所述第二发光单元中的所述第一接触端子和所述第二接触端子的排列方式相异。
在本申请实施例提供的显示装置中，所述第一发光单元以及所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向或所述第二方向排列；
其中，所述第一发光单元中的所述第一接触端子和所述第二接触端子的间距大于所述第二发光单元中的所述第一接触端子和所述第二接触端子的间距。
在本申请实施例提供的显示装置中，所述第一发光单元中的所述第一接触端子和所述第二接触端子沿所述第二方向排列，所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向排列。
在本申请实施例提供的显示装置中，所述第一发光单元或者所述第二发光单元的长宽比大于1.5:1。
有益效果
本申请实施例的有益效果：本申请提供一种显示背板及显示装置；该显示背板包括基板及设置于所述基板上的发光层，所述发光层包括沿第一方向排列的多个发光单元组，所述发光单元组包括沿第二方向交替排列的多个第一发光单元和多个第二发光单元，所述第一发光单元沿所述第一方向的尺寸大于所述第二发光单元沿所述第一方向的尺寸，所述第一发光单元沿所述第二方向的尺寸小于所述第二发光单元沿所述第二方向的尺寸；本申请提供的所述显示背板通过将所述第一发光单元沿所述第一方向的尺寸大于所述第二发光单元沿所述第一方向的尺寸，所述第一发光单元沿所述第二方向的尺寸小于所述第二发光单元沿所述第二方向的尺寸，以使至少部分所述第一发光单元的发光光型与其相邻的所述第二发光单元的发光光型在所述第一方向上的重叠面积与在所述第二方向上的重叠面积接近一致，从而使所述显示面板的整体出光更均匀，且减少因光照不足形成的暗影区域，进而避免所述显示背板出现亮暗不均的问题，更进一步提高了所述显示背板的出光效果。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的显示背板的发光单元的排布方式一的局部示意图；
图2为本申请实施例提供的显示背板的发光单元的排布方式二的局部示意图；
图3A为本申请实施例提供的显示背板的发光单元的排布方式三的一种局部示意图；
图3B为本申请实施例提供的显示背板的发光单元的排布方式三的另一种的局部示意图；
图4为图3A中显示背板在A-A处的剖面图；
图5为本申请实施例提供的显示背板的局部示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
下面结合附图和具体实施例对本申请做进一步的说明：
请参阅图1至图5，本申请提出了一种显示背板，包括基板100及设置于所述基板100上的发光层，所述发光层包括沿第一方向D1排列的多个发光单元组300，所述发光单元组300包括沿第二方向D2交替排列的多个第一发光单元31和多个第二发光单元32；
其中，所述第一发光单元31沿所述第一方向D1的尺寸大于所述第二发光单元32沿所述第一方向D1的尺寸，所述第一发光单元31沿所述第二方向D2的尺寸小于所述第二发光单元32沿所述第二方向D2的尺寸。
本申请提供的所述显示背板通过将所述第一发光单元31沿所述第一方向D1的尺寸大于所述第二发光单元32沿所述第一方向D1的尺寸，所述第一发光单元31沿所述第二方向D2的尺寸小于所述第二发光单元32沿所述第二方向D2的尺寸，以使至少部分所述第一发光单元31的发光光型与其相邻的所述第二发光单元32的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致，从而使所述显示背板的整体出光更均匀，且减少因光照不足形成的暗影区域，进而避免所述显示背板出现亮暗不均的问题，更进一步提高了所述显示背板的出光效果。
现结合具体实施例对本申请的技术方案进行描述。
实施例一
请参阅图1，图1为本申请实施例提供的显示背板的发光单元的排布方式一的局部示意图；其中所述显示背板包括基板100及设置于所述基板100上的发光层，所述发光层包括沿第一方向D1排列的多个发光单元组300，所述发光单元组300包括沿第二方向D2交替排列的多个第一发光单元31和多个第二发光单元32，所述第一发光单元31沿所述第一方向D1的尺寸大于所述第二发光单元32沿所述第一方向D1的尺寸，所述第一发光单元31沿所述第二方向D2的尺寸小于所述第二发光单元32沿所述第二方向D2的尺寸；
在本申请的一种实施例中，所述第一发光单元31以及所述第二发光单元32均为长方形，所述第二方向D2与所述第一方向D1垂直；
其中，在所述显示背板的俯视图方向上，所述第一发光单元31的长边方向和所述第二发光单元32的长边方向垂直。
具体地，在本申请实施例中，所述第一发光单元31的长边沿所述第二方向D2排列，所述第二发光单元32的短边沿所述第二方向D2排列。
在本申请实施例中，由于所述第一发光单元31以及所述第二发光单元32均为长方形，使得所述第一发光单元31以及所述第二发光单元32均发出椭圆形的光斑。这是由于所述第一发光单元31或者所述第二发光单元32在长边方向与短边方向的光型图不一致，其在同一角度下长边光型大于短边光型，从而形成沿长边长且沿短边短的椭圆形的光斑。
具体地，所述第一发光单元31沿所述第二方向D2发出第一椭圆形光型311，所述第二发光单元32沿所述第一方向D1发出第二椭圆形光型321；其中，所述第一椭圆形光型311的面积与所述第二椭圆形光型321的面积相等。
在本申请实施例中，相邻两个所述发光单元组300内的所述第一发光单元31和所述第二发光单元32的排布方式相同。此排布方式能够提高每一排所述发光单元组300内中所述第一发光单元31与其相邻的所述第二发光单元32的排布间距，从而减少每一排所述发光单元组300内的发光单元的数量，进而降低所述显示背板的制作成本；同时使得所述显示背板的整体出光更均匀，且减少了因光照不足形成的暗影区域，从而减少所述显示背板出现亮暗不均的问题，提高了所述显示背板的出光效果。
在本申请实施例中，在同一个所述发光单元组300内，所述第一发光单元31的发光光型与其相邻的所述第二发光单元32的发光光型部分相交；所述第一发光单元31发出的椭圆形光型在所述第二方向D2的光和相邻的所述第二发光单元32发出的椭圆形光型在所述第一方向D1的光相交互补，从而提高了所述显示背板的出光效果。
具体地，在所述第一方向D1上，所述第一发光单元31的发光光型与其相邻的两个所述第一发光单元31的发光光型具有重叠部分S1；在所述第二方向D2上，所述第一发光单元31的发光光型与其相邻的两个所述第二发光单元32的发光光型具有重叠部分S2；本申请实施例相对于现有技术的规则排布（在所述第一方向D1上以及在所述第二方向D2上，均间隔排布多个所述第一发光单元31），在所述第一方向D1上，增大了所述第二发光单元32的发光光型的重叠部分S1的面积，同时，在所述第二方向D2上，减小了所述第一发光单元31的发光光型的重叠部分S2的面积，从而使至少部分所述第一发光单元31的发光光型与其相邻的所述第二发光单元32的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致。
其中，所述第一发光单元31或者所述第二发光单元32的长宽比大于1.5:1时，所述第一发光单元31或者所述第二发光单元32发出的光斑为椭圆形状，且有利于相邻的发光单元的光相交互补，使所述显示背板的整体出光更均匀。
在本实施例中，如图1所示，相邻两排的所述发光单元组300内的发光单元的中心位置依次一一对应，相邻两排的所述发光单元组300内的发光单元按顺序依次对应，不会出现交叉对应的情况。由于所述第一发光单元31或者所述第二发光单元32出光不均匀时，相邻发光单元的光相交而亮度较高会出现亮斑区域，所述第一发光单元31或者所述第二发光单元32的光斑照射不到而亮度较低会出现暗影区域，背光画面会出现亮暗不均的问题。通过设置相邻两排的所述发光单元组300的所述第一发光单元31或者所述第二发光单元32的中心位置一一对应（即，在所述第二方向D2上，所述第一发光单元31的中心与所述第二发光单元32的中心之间的连线L1沿所述第二方向D2设置，且在所述第一方向D1上，所述第一发光单元31的中心与所述第二发光单元32的中心之间的连线L2沿所述第一方向D1设置），且所述第一发光单元31的长边方向和所述第二发光单元32的长边方向垂直，使所述第一发光单元31发出的椭圆形光型在所述第二方向D2的光和相邻的所述第二发光单元32发出的椭圆形光型在所述第一方向D1的光相交互补，进而使所述显示背板的整体出光更均匀。
在本实施例中，在所述第一方向D1上的相邻两个所述第一发光单元31和所述第二发光单元32的间距a，与在所述第二方向D2上的相邻两个所述第一发光单元31和所述第二发光单元32的间距b相等；此设计能够使所述第一发光单元31或者所述第二发光单元32发出的光斑更均匀地分布在所述显示背板内，进一步提升所述显示背板的出光效果。
在本申请实施例中，所述第一发光单元31以及所述第二发光单元32均为迷你发光二极管芯片（Mini-LED）；其中，Mini-LED芯片是指尺寸介于50~200μm之间的LED芯片。所述第一发光单元31以及所述第二发光单元32可用作显示装置的背光源，也可用于显示装置的自发光层。
针对现有显示背板中的发光单元组300混光不均的技术问题，本申请提出了一种显示背板，包括基板100及设置于所述基板100上的发光层，所述发光层包括沿第一方向D1排列的多个发光单元组300，所述发光单元组300包括沿第二方向D2交替排列的多个第一发光单元31和多个第二发光单元32，所述第一发光单元31沿所述第一方向D1的尺寸大于所述第二发光单元32沿所述第一方向D1的尺寸，所述第一发光单元31沿所述第二方向D2的尺寸小于所述第二发光单元32沿所述第二方向D2的尺寸；本申请提供的所述显示背板通过将所述第一发光单元31沿所述第一方向D1的尺寸大于所述第二发光单元32沿所述第一方向D1的尺寸，且所述第一发光单元31沿所述第二方向D2的尺寸小于所述第二发光单元32沿所述第二方向D2的尺寸，使多个所述第一发光单元31的长边方向和多个所述第二发光单元32的长边方向垂直，以使至少部分所述第一发光单元31的发光光型与其相邻的所述第二发光单元32的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致，从而使所述显示背板的整体出光更均匀，且减少因光照不足形成的暗影区域，进而避免所述显示背板出现亮暗不均的问题，更进一步提高了所述显示背板的出光效果。
实施例二
请参阅图2，图2为本申请实施例提供的显示背板的发光单元的排布方式二的局部示意图；其中，本申请实施例二中的显示背板的结构与本申请实施例一中的显示背板的结构相同或相似，不同之处仅在于，相邻两个所述发光单元组300内的所述第一发光单元31和所述第二发光单元32的排布方式相异；
其中，在所述第一方向D1上，多个所述第一发光单元31和多个所述第二发光单元32交替排列，相邻两个所述第一发光单元31的长边方向和所述第二发光单元32的长边方向垂直。
具体地，在本申请实施例中，在所述第一方向D1上，所述第一发光单元31的中心和所述第二发光单元32的中心的连线L4和所述第一方向D1平行；以及，
在所述第二方向D2上，所述第一发光单元31的中心和所述第二发光单元32的中心的连线L3和所述第二方向D2平行。
具体地，在所述第一方向D1上，所述第一发光单元31的发光光型与其相邻的两个所述第一发光单元31的发光光型具有重叠部分S3；在所述第二方向D2上，所述第一发光单元31的发光光型与其相邻的两个所述第二发光单元32的发光光型具有重叠部分S4；本申请实施例相对于本申请实施例一，在所述第一方向D1上，进一步增大了所述第二发光单元32的发光光型的重叠部分S1的面积，同时，在所述第二方向D2上，进一步减小了所述第一发光单元31的发光光型的重叠部分S2的面积，从而使至少部分所述第一发光单元31的发光光型与其相邻的所述第二发光单元32的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致。
本申请实施例二相比本申请实施例一，在所述第一方向D1上，通过将多个所述第一发光单元31和多个所述第二发光单元32交替排列，相邻两个所述第一发光单元31的长边方向和所述第二发光单元32的长边方向垂直；且在所述第一方向D1上，所述第一发光单元31的中心和所述第二发光单元32的中心的连线L4和所述第一方向D1平行，在所述第二方向D2上，所述第一发光单元31的中心和所述第二发光单元32的中心的连线L3和所述第二方向D2平行，以使所述第一发光单元31发出的椭圆形光斑能够至少与4个相邻的所述第二发光单元32发出的椭圆形光斑相交互补，进而使所述显示背板的整体出光更均匀。
实施例三
请参阅图3A，图3A为本申请实施例提供的显示背板的发光单元的排布方式三的一种局部示意图；其中，本申请实施例三中的显示背板的结构与本申请实施例二中的显示背板的结构相同或相似，不同之处仅在于，所述发光层包括多个重复单元30，所述重复单元30包括两个所述第一发光单元31和两个所述第二发光单元32；
其中，在每一所述重复单元30中，在所述第一方向D1上依次排列有一个所述第一发光单元31以及一个所述第二发光单元32；在所述第二方向D2上依次排列有一个所述第一发光单元31以及一个所述第二发光单元32。
具体地，在每一所述重复单元30中，在所述第一方向D1上，一所述第一发光单元31中远离另一所述第一发光单元31一侧的短边与其相邻的所述第二发光单元32中远离另一所述第二发光单元32一侧的长边组成的连线L6沿所述第一方向D1对齐；
在所述第二方向D2上，一所述第一发光单元31中远离另一所述第一发光单元31一侧的长边与其相邻的所述第二发光单元32中远离另一所述第二发光单元32一侧的短边组成的连线L5沿所述第二方向D2对齐。
具体地，在所述第一方向D1上，所述第一发光单元31的发光光型与其相邻的两个所述第一发光单元31的发光光型具有重叠部分S5；在所述第二方向D2上，所述第一发光单元31的发光光型与其相邻的两个所述第二发光单元32的发光光型具有重叠部分S6；本申请实施例相对于本申请实施例二，在所述第一方向D1上，进一步增大了所述第二发光单元32的发光光型的重叠部分S5的面积，同时，在所述第二方向D2上，进一步减小了所述第一发光单元31的发光光型的重叠部分S6的面积，从而使至少部分所述第一发光单元31的发光光型与其相邻的所述第二发光单元32的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致。
请参阅图3B，图3B为本申请实施例提供的显示背板的发光单元的排布方式三的另一种局部示意图；其中，在每一所述重复单元30中，在所述第一方向D1上依次排列有一个所述第二发光单元32以及一个所述第一发光单元31；在所述第二方向D2上依次排列有一个所述第二发光单元32以及一个所述第一发光单元31。
具体地，在所述第一方向D1上，一所述第二发光单元32中远离另一所述第二发光单元32一侧的长边与其相邻的所述第一发光单元31中远离另一所述第一发光单元31一侧的短边组成的连线L8沿所述第一方向D1对齐；
在所述第二方向D2上，一所述第二发光单元32中远离另一所述第二发光单元32一侧的短边与其相邻的所述第一发光单元31中远离另一所述第一发光单元31一侧的长边组成的连线L7沿所述第二方向D2对齐。
具体地，在所述第一方向D1上，所述第二发光单元32的发光光型与其相邻的两个所述第一发光单元31的发光光型具有重叠部分S8；在所述第二方向D2上，所述第二发光单元32的发光光型与其相邻的两个所述第一发光单元31的发光光型具有重叠部分S7；本申请实施例相对于本申请实施例二，在所述第一方向D1上，进一步增大了所述第二发光单元32的发光光型与相邻两个所述第一发光单元31的发光光型的重叠部分S8的面积，同时，在所述第二方向D2上，进一步减小了与相邻两个所述第一发光单元31的发光光型的重叠部分S7的面积，从而使至少部分所述第二发光单元32的发光光型与其相邻的所述第一发光单元31的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致。
请参阅图4，图4为图3A中显示背板在A-A处的剖面图；其中，所述显示背板包括多个像素岛10，每一所述像素岛10包括基板100和驱动电路层200；所述基板100包括第一通孔101；所述驱动电路层200位于所述基板100上，所述驱动电路层200至少包括连接电极201，所述连接电极201与所述第一通孔101对应；其中，所述显示背板还包括位于所述基板100远离所述驱动电路层200的一侧的连接导线20，相邻的两个所述像素岛10的所述连接电极201分别通过对应的所述第一通孔101与所述连接导线20的两端电连接。
在一种实施例中，所述驱动电路层200包括有源层202、第一金属层203以及第二金属层204；所述有源层202位于所述基板100上；所述第一金属层203位于所述有源层202上，所述第一金属层203包括栅极2031；所述第二金属层204位于所述第一金属层203上，所述第二金属层204包括源极2041、漏极2042以及电源线2043，所述源极2041和所述漏极2042分别与所述有源层202的两端电连接；
其中，所述基板100上设置有第二通孔102和第三通孔103，所述源极2041通过所述第二通孔102与所述连接导线20电连接，所述电源线2043通过所述第三通孔103与所述连接导线20电连接。
在本申请实施例中，所述有源层202的材料均为多晶硅，所述第一接触端子301与发光单元内部的N型半导体电连接，所述第二接触端子302与发光单元内部的P型半导体电连接。
可以理解的是，本实施例通过在基板100上设置第二通孔102和第三通孔103，使得源极2041以及电源线2043可分别通过第二通孔102、第三通孔103与连接导线20电连接，通过连接导线20将电信号传递至源极2041以及电源线2043，即可以采用延展性较佳的连接导线20从像素岛10的下部为显示背板供电。
在一种实施例中，每一所述像素岛10对应设置有一个第一发光单元31或者一个第二发光单元32，所述第一发光单元31或者所述第二发光单元32位于所述驱动电路层200上，所述第一发光单元31或者所述第二发光单元32包括第一接触端子301和第二接触端子302；所述第一接触端子301与所述漏极2042电连接，所述第二接触端子302与所述电源线2043电连接。
需要说明的是，在同一所述发光单元组300内，所述第一发光单元31的发光颜色与所述第二发光单元32的发光颜色相同；即一个像素岛10上可包含红色子像素、蓝色色像素、绿色子像素以及白色子像素中的任意一种，即一个像素岛10上可设置红色发光器件、绿色发光器件、蓝色发光器件以及白色发光器件中的任意一个。
在一种实施例中，所述连接电极201与所述第二金属层204同层设置。需要说明的是，连接电极201用于连通相邻的两个像素岛10，即用于将电信号在相邻的两个像素岛10之间传输，本实施例通过将连接电极201与第二金属层204同层设置，可使连接电极201与第二金属层204同制程制备，不用额外增加光罩制程，不会造成生产成本上升。
在一种实施例中，所述基板100靠近所述驱动电路层200的一侧表面设置有导电层400，所述导电层400包括多个第一导电端子401、多个第二导电端子402以及多个第三导电端子403，所述第一导电端子401对应所述第一通孔101设置，所述第二导电端子402对应所述第二通孔102设置，所述第三导电端子403对应所述第三通孔103设置。
可以理解的是，连接电极201、源极2041以及电源线2043均是通过过孔连接至基板100表面，而过孔的孔径较小，导致连接电极201、源极2041以及电源线2043与连接导线20的接触面积较小，接触阻抗较大。本实施例通过在基板100靠近驱动电路层200的一侧表面设置多个第一导电端子401、多个第二导电端子402以及多个第三导电端子403，连接电极201、源极2041以及电源线2043通过上述导电端子与连接导线20电连接，以降低接触阻抗，减小压降。
进一步地，在一种实施例中，所述第一导电端子401在垂直于所述基板100方向的面积大于所述第二导电端子402在垂直于所述基板100方向的面积。这是因为由于所述电源线2043在与所述第一导电端子401电连接的同时，还与所述第二接触端子302电连接（所述第二导电端子402未与所述第二接触端子302电连接），进而使得所述第一导电端子401与所述连接导线20之间的接触阻抗大于所述第二导电端子402与所述连接导线20之间的接触阻抗；因此，增大所述第一导电端子401在垂直于所述基板100方向的面积，以降低接触阻抗，减小压降。
在一种实施例中，所述第一通孔101、所述第二通孔102以及所述第三通孔103内填充有导电材料500。可以理解的是，本实施例通过在第一通孔101、第二通孔102以及第三通孔103内填充导电材料500，以提高连接电极201、源极2041以及电源线2043与连接导线20的导电效果。
在一种实施例中，所述显示背板还包括缓冲层600、钝化层700、第三金属层800以及绝缘层900，缓冲层600位于基板100和驱动电路层200之间，钝化层700位于第二金属层204上，第三金属层800位于钝化层700上，绝缘层900位于第三金属层800和所述第一发光单元31或者所述第二发光单元32之间，第三金属层800包括多个第一导电电极801以及多个第二导电电极802，所述第一发光单元31或者所述第二发光单元32的第一接触端子301通过所述第一导电电极801与漏极2042电连接。所述第一发光单元31或者所述第二发光单元32的第二接触端子302通过所述第二导电电极802与所述电源线2043电连接。
在一种实施例中，所述驱动电路层200还包括第一栅极绝缘层205、第二栅极绝缘层206、第二栅极层207以及层间绝缘层208，第一栅极绝缘层205位于有源层202和第一金属层203之间，第二栅极绝缘层206位于第一金属层203上，第二栅极层207位于第二栅极绝缘层206上，层间绝缘层208位于第二栅极层207上。其中，第二金属层204位于层间绝缘层208和钝化层700之间。
在本申请实施例中，所述第一发光单元31和所述第二发光单元32中的所述第一接触端子301和所述第二接触端子302的排列方式相异。
具体地，所述第一发光单元31以及所述第二发光单元32中的所述第一接触端子301和所述第二接触端子302沿所述第二方向D2排列（即所述第一发光单元31中的两个接触端子沿长边方向排列，所述第二发光单元32中的两个接触端子沿短边方向排列）；
其中，所述第一发光单元31中的所述第一接触端子301和所述第二接触端子302的间距大于所述第二发光单元32中的所述第一接触端子301和所述第二接触端子302的间距；这样设计是由于短边的尺寸小于长边的尺寸，所以沿短边方向排列的两个接触端子之间的间距也相应减小。
在本申请的另外一种实施例中，所述第一发光单元31以及所述第二发光单元32中的所述第一接触端子301和所述第二接触端子302沿所述第一方向D1排列（即所述第一发光单元31中的两个接触端子沿短边方向排列，所述第二发光单元32中的两个接触端子沿长边方向排列）；
其中，所述第一发光单元31中的所述第一接触端子301和所述第二接触端子302的间距小于所述第二发光单元32中的所述第一接触端子301和所述第二接触端子302的间距；这样设计是由于短边的尺寸小于长边的尺寸，所以沿短边方向排列的两个接触端子之间的间距也相应减小。
在本申请的另一种实施例中，所述第一发光单元31中的所述第一接触端子301和所述第二接触端子302沿所述第二方向D2排列，所述第二发光单元32中的所述第一接触端子301和所述第二接触端子302沿所述第一方向D1排列（即所述第一发光单元31中的两个接触端子沿长边方向排列，所述第二发光单元32中的两个接触端子也沿长边方向排列）。
本申请实施例三相比本申请实施例二，能够使所述第一发光单元31的发光光型至少与4个相邻的所述第二发光单元32发出的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致，从而使所述第一发光单元31发出的椭圆形光斑能够至少与4个相邻的所述第二发光单元32发出的椭圆形光斑更加均匀地相交互补，进而使所述显示背板的整体出光更均匀。
请参阅图5，图5为本申请实施例提供的显示背板的局部示意图。其中，所述显示背板用于给显示装置提供背光源。
具体地，所述显示背板包括底板57以及与所述底板57一体成型的侧板58，所述基板100远离所述第一发光单元31或者所述第二发光单元32的一侧通过第一粘合胶51与所述底板57粘合；所述底板57上还设置有第一封装层54，所述第一封装层54完全覆盖所述第一发光单元31以及所述第二发光单元32；所述第一封装层54远离所述基板100的一侧还设置有光学膜片组55，所述光学膜片组55包含反红绿膜、量子点膜、分光膜、增亮膜、扩散膜等的一种或多种，每种的数量、尺寸及搭配任意，视实际视效而定。
进一步地，所述底板57远离所述基板100的一侧还设置有第二封装层56，所述第二封装层56的一端通过第二粘合胶52与所述光学膜片组55粘合，所述第二封装层56远离所述基板100的另一端通过第三粘合胶53与所述侧板58粘合。
相应地，本申请还提出了一种显示装置，所述显示装置包括显示主体和上述显示背板，所述显示主体和所述显示背板组合为一体。所述显示装置可以包括但不限定于手机、平板电脑、计算机显示器、游戏机、电视机、显示屏幕、可穿戴设备及其他具有显示功能的生活电器或家用电器等。
需要说明的是，图1至图5中仅绘示了显示背板的主要结构，显示装置的最终形态所包含的模组芯片、柔性电路板、偏光片、保护膜等膜层未示出，但显示终端的最终形态可能包含此类膜层，此类膜层可在本发明实施例提供的显示背板的制备工艺流程中或制备工艺流程结束后制作，在此不再详述。
针对现有显示背板中的发光单元组300混光不均的技术问题，本申请提供一种显示背板及显示装置；该显示背板包括基板100及设置于所述基板100上的发光层，所述发光层包括沿第一方向D1排列的多个发光单元组300，所述发光单元组300包括沿第二方向D2交替排列的多个第一发光单元31和多个第二发光单元32，所述第一发光单元31沿所述第一方向D1的尺寸大于所述第二发光单元32沿所述第一方向D1的尺寸，所述第一发光单元31沿所述第二方向D2的尺寸小于所述第二发光单元32沿所述第二方向D2的尺寸；本申请提供的所述显示背板通过将所述第一发光单元31沿所述第一方向D1的尺寸大于所述第二发光单元32沿所述第一方向D1的尺寸，且所述第一发光单元31沿所述第二方向D2的尺寸小于所述第二发光单元32沿所述第二方向D2的尺寸，使得多个所述第一发光单元31的长边方向和多个所述第二发光单元32的长边方向垂直，以使至少部分所述第一发光单元31的发光光型与其相邻的所述第二发光单元32的发光光型在所述第一方向D1上的重叠面积与在所述第二方向D2上的重叠面积接近一致，从而使所述显示背板的整体出光更均匀，且减少因光照不足形成的暗影区域，进而避免所述显示背板出现亮暗不均的问题，更进一步提高了所述显示背板的出光效果。
综上所述，虽然本申请以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为基准。

Claims (20)

  1. 一种显示背板，包括：
    基板；
    发光层，设置于所述基板上，所述发光层包括沿第一方向排列的多个发光单元组，所述发光单元组包括沿第二方向交替排列的多个第一发光单元和多个第二发光单元；
    所述第一发光单元沿所述第一方向的尺寸大于所述第二发光单元沿所述第一方向的尺寸，所述第一发光单元沿所述第二方向的尺寸小于所述第二发光单元沿所述第二方向的尺寸。
  2. 根据权利要求1所述的显示背板，其中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相同。
  3. 根据权利要求1所述的显示背板，其中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相异；
    其中，在所述第一方向上，多个所述第一发光单元和多个所述第二发光单元交替排列，相邻两个所述第一发光单元的长边方向和所述第二发光单元的长边方向垂直。
  4. 根据权利要求3所述的显示背板，其中，在所述第一方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第一方向平行；以及，
    在所述第二方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第二方向平行。
  5. 根据权利要求3所述的显示背板，其中，所述发光层包括多个重复单元，所述重复单元包括两个所述第一发光单元和两个所述第二发光单元；
    其中，在每一所述重复单元中，在所述第一方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的短边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的长边沿所述第一方向对齐；
    在所述第二方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的长边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的短边沿所述第二方向对齐。
  6. 根据权利要求1所述的显示背板，其中，在所述第一方向上的相邻两个所述第一发光单元和所述第二发光单元的间距，与在所述第二方向上的相邻两个所述第一发光单元和所述第二发光单元的间距相等。
  7. 根据权利要求1所述的显示背板，其中，所述显示背板还包括设置于所述基板与所述发光层之间的驱动电路层，所述驱动电路层包括薄膜晶体管以及电源线；
    所述第一发光单元以及所述第二发光单元包括第一接触端子和第二接触端子，所述第一接触端子与所述薄膜晶体管内的源极或漏极电连接，所述第二接触端子与所述电源线电连接；
    其中，所述第一发光单元和所述第二发光单元中的所述第一接触端子和所述第二接触端子的排列方式相异。
  8. 根据权利要求7所述的显示背板，其中，所述第一发光单元以及所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向或所述第二方向排列；
    其中，所述第一发光单元中的所述第一接触端子和所述第二接触端子的间距大于所述第二发光单元中的所述第一接触端子和所述第二接触端子的间距。
  9. 根据权利要求7所述的显示背板，其中，所述第一发光单元中的所述第一接触端子和所述第二接触端子沿所述第二方向排列，所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向排列。
  10. 如权利要求1所述的显示背板，其中，所述第一发光单元或者所述第二发光单元的长宽比大于1.5:1。
  11. 一种显示装置，包括显示背板，所述显示背板包括：
    基板；
    发光层，设置于所述基板上，所述发光层包括沿第一方向排列的多个发光单元组，所述发光单元组包括沿第二方向交替排列的多个第一发光单元和多个第二发光单元；
    所述第一发光单元沿所述第一方向的尺寸大于所述第二发光单元沿所述第一方向的尺寸，所述第一发光单元沿所述第二方向的尺寸小于所述第二发光单元沿所述第二方向的尺寸。
  12. 根据权利要求11所述的显示装置，其中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相同。
  13. 根据权利要求11所述的显示装置，其中，相邻两个所述发光单元组内的所述第一发光单元和所述第二发光单元的排布方式相异；
    其中，在所述第一方向上，多个所述第一发光单元和多个所述第二发光单元交替排列，相邻两个所述第一发光单元的长边方向和所述第二发光单元的长边方向垂直。
  14. 根据权利要求13所述的显示装置，其中，在所述第一方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第一方向平行；以及，
    在所述第二方向上，所述第一发光单元的中心和所述第二发光单元的中心的连线和所述第二方向平行。
  15. 根据权利要求13所述的显示装置，其中，所述发光层包括多个重复单元，所述重复单元包括两个所述第一发光单元和两个所述第二发光单元；
    其中，在每一所述重复单元中，在所述第一方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的短边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的长边沿所述第一方向对齐；
    在所述第二方向上，一所述第一发光单元中远离另一所述第一发光单元一侧的长边与其相邻的所述第二发光单元中远离另一所述第二发光单元一侧的短边沿所述第二方向对齐。
  16. 根据权利要求11所述的显示装置，其中，在所述第一方向上的相邻两个所述第一发光单元和所述第二发光单元的间距，与在所述第二方向上的相邻两个所述第一发光单元和所述第二发光单元的间距相等。
  17. 根据权利要求11所述的显示装置，其中，所述显示背板还包括设置于所述基板与所述发光层之间的驱动电路层，所述驱动电路层包括薄膜晶体管以及电源线；
    所述第一发光单元以及所述第二发光单元包括第一接触端子和第二接触端子，所述第一接触端子与所述薄膜晶体管内的源极或漏极电连接，所述第二接触端子与所述电源线电连接；
    其中，所述第一发光单元和所述第二发光单元中的所述第一接触端子和所述第二接触端子的排列方式相异。
  18. 根据权利要求17所述的显示装置，其中，所述第一发光单元以及所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向或所述第二方向排列；
    其中，所述第一发光单元中的所述第一接触端子和所述第二接触端子的间距大于所述第二发光单元中的所述第一接触端子和所述第二接触端子的间距。
  19. 根据权利要求17所述的显示装置，其中，所述第一发光单元中的所述第一接触端子和所述第二接触端子沿所述第二方向排列，所述第二发光单元中的所述第一接触端子和所述第二接触端子沿所述第一方向排列。
  20. 如权利要求11所述的显示装置，其中，所述第一发光单元或者所述第二发光单元的长宽比大于1.5:1。
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CN115513247A (zh) * 2022-09-30 2022-12-23 武汉华星光电技术有限公司 显示背板及显示装置
CN115862492A (zh) * 2022-12-22 2023-03-28 武汉华星光电技术有限公司 背光面板

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