Display substrate and display device

Abstract

The utility model discloses a display substrate and a display device. The display substrate comprises a substrate body and a plurality of light-emitting units. The light-emitting units at least comprise a first light-emitting unit for emitting first-color light, a second light-emitting unit for emitting second-color light, a third light-emitting unit for emitting third-color light and a fourth light-emitting unit for emitting fourth-color light. The first light-emitting unit, the second light-emitting unit and the third light-emitting unit are configured to emit light in a normal display mode; the second light-emitting unit, the third light-emitting unit and the fourth light-emitting unit are configured to emit light in a night vision display mode, the first light-emitting unit is configured to not emit light in the night vision display mode, and the first color is red; the first light-emitting area has a first light-emitting area, the fourth light-emitting area has a fourth light-emitting area, and the fourth light-emitting area is smaller than the first light-emitting area, so that the problem of poor display and night vision compatibility of an existing display screen can be solved.

Description

Technical Field

[0001] The present invention relates to but is not limited to the field of display technology, and in particular to a display substrate and a display device. Background Art

[0002] With the development of active-matrix organic light emitting diode (AMOLED) displays, the application scenarios are gradually increasing, such as mobile terminals, car displays, and airborne displays. For the scenario of applying AMOLED to airborne displays, AMOLED is required to meet the requirements of night vision compatibility on the basis of meeting the conventional use requirements. The night vision compatibility of airborne display screens generally refers to the use of night vision goggles to enhance the light outside the cabin when pilots perform night flights and reconnaissance missions at night so that pilots can observe the situation outside the cabin. During the use of night vision goggles, the lighting system and display system in the cabin must not affect the normal operation of the night vision goggles, and it must be ensured that the pilot can see the instruments, indicator lights and display information in the cabin with the naked eye.

[0003] Existing AMOLED displays have the problem of poor display and night vision compatibility. Utility Model Content

[0004] The embodiments of the utility model provide a display substrate and a display device, which can solve the problem of poor display and night vision compatibility of existing display screens and can ensure that the display device has high display quality.

[0005] On the one hand, an embodiment of the utility model provides a display substrate, the display substrate includes a base substrate and a plurality of pixel units located on the base substrate; at least one pixel unit includes a plurality of light-emitting units, the plurality of light-emitting units at least include a first light-emitting unit emitting a first color light, a second light-emitting unit emitting a second color light, a third light-emitting unit emitting a third color light, and a fourth light-emitting unit emitting a fourth color light; the first light-emitting unit has a first light-emitting area, the second light-emitting unit has a second light-emitting area, the third light-emitting unit has a third light-emitting area, and the fourth light-emitting unit has a fourth light-emitting area;

[0006] The first light-emitting unit, the second light-emitting unit and the third light-emitting unit are configured to emit light in a normal display mode; the second light-emitting unit, the third light-emitting unit and the fourth light-emitting unit are configured to emit light in a night vision display mode, and the first light-emitting unit is configured not to emit light in the night vision display mode, and the first color is red;

[0007] The first light emitting region has a first light emitting area, the fourth light emitting region has a fourth light emitting area, and the fourth light emitting area is smaller than the first light emitting area.

[0008] In an exemplary embodiment, a ratio of the first light emitting area to the fourth light emitting area ranges from 1:0.1 to 1:0.5.

[0009] In an exemplary embodiment, the arrangement of the plurality of first light-emitting areas, the plurality of second light-emitting areas, the plurality of third light-emitting areas, and the plurality of fourth light-emitting areas satisfies one of the following arrangement forms:

[0010] First arrangement form: the first light-emitting area, the second light-emitting area, and the third light-emitting area are alternately arranged along the first direction, and the second light-emitting area and the fourth light-emitting area are alternately arranged along the second direction;

[0011] Second arrangement form: the first light-emitting area and the third light-emitting area are alternately arranged along the first direction, the second light-emitting area and the fourth light-emitting area are alternately arranged along the first direction, and the first light-emitting area and the second light-emitting area are alternately arranged along the second direction, and the third light-emitting area and the fourth light-emitting area are alternately arranged along the second direction;

[0012] A third arrangement form: the first light-emitting area, the fourth light-emitting area, the third light-emitting area and the fourth light-emitting area are arranged alternately in sequence along the first direction, and a plurality of the second light-emitting areas are arranged in sequence along the first direction; the fourth light-emitting area and the second light-emitting area are arranged alternately along the second direction, and the first light-emitting area and the third light-emitting area are arranged alternately along the second direction;

[0013] Fourth arrangement form: the first light-emitting area and the third light-emitting area are arranged alternately in sequence along the first direction, and the first light-emitting area, the fourth light-emitting area and the third light-emitting area are arranged alternately in the second direction, and a plurality of the second light-emitting areas are arranged in sequence along the second direction;

[0014] A fifth arrangement form: the third light-emitting area, the first light-emitting area and two second light-emitting areas are arranged alternately along the first direction, and two second light-emitting areas are arranged along the second direction, and a plurality of fourth light-emitting areas are arranged along the second direction;

[0015] The plane formed by the intersection of the first direction and the second direction is parallel to the plane where the base substrate is located.

[0016] In an exemplary embodiment, in at least one pixel unit, the orthographic projections of the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area on the plane where the substrate is located do not overlap; a line connecting the center of the orthographic projection of the first light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the second light-emitting area on the plane where the substrate is located is a first line, a line connecting the center of the orthographic projection of the third light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the fourth light-emitting area on the plane where the substrate is located is a second line, and the first line is parallel to the second line.

[0017] In an exemplary embodiment, the at least one pixel unit includes at least one first pixel unit; in the first pixel unit, a line connecting the center of the orthographic projection of the first light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the second light-emitting area on the plane where the substrate is located is a first straight line, a line connecting the center of the orthographic projection of the second light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the third light-emitting area on the plane where the substrate is located is a second straight line, a line connecting the center of the orthographic projection of the third light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the first light-emitting area on the plane where the substrate is located is a third straight line, and the first straight line, the second straight line and the third straight line intersect to form a triangle, and the orthographic projection of the fourth light-emitting area on the plane where the substrate is located is located within the triangle.

[0018] In an exemplary embodiment, the center of the orthographic projection of the fourth light emitting area on the plane where the base substrate is located coincides with the center of the triangle.

[0019] In an exemplary embodiment, the at least one pixel unit further includes at least one second pixel unit; in the second pixel unit, a line connecting the center of the orthographic projection of the first light emitting area on the plane where the substrate is located and the center of the orthographic projection of the second light emitting area on the plane where the substrate is located is a fourth straight line, a line connecting the center of the orthographic projection of the second light emitting area on the plane where the substrate is located and the center of the orthographic projection of the third light emitting area on the plane where the substrate is located is a fifth straight line, a line connecting the center of the orthographic projection of the third light emitting area on the plane where the substrate is located and the center of the orthographic projection of the first light emitting area on the plane where the substrate is located is a sixth straight line, the fourth straight line, the fifth straight line and the sixth straight line intersect to form a triangle, and the orthographic projection of the fourth light emitting area on the plane where the substrate is located is located within the triangle;

[0020] The first straight line is parallel to the fifth straight line, the second straight line is parallel to the fourth straight line, and the third straight line is parallel to the sixth straight line.

[0021] In an exemplary embodiment, a plurality of the first pixel units and a plurality of the second pixel units are alternately arranged in sequence along the first direction.

[0022] In an exemplary embodiment, each of the pixel units includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, the first sub-pixel includes a first light-emitting unit, the second sub-pixel includes a second light-emitting unit, the third sub-pixel includes a third light-emitting unit, and the fourth sub-pixel includes a fourth light-emitting unit; the plurality of pixel units are arranged in sequence along the first direction;

[0023] Part of the sub-pixels of two adjacent pixel units are shared.

[0024] In an exemplary embodiment, the shared sub-pixel includes at least one of the first sub-pixel, the third sub-pixel, and the fourth sub-pixel.

[0025] In an exemplary embodiment, the plurality of pixel units include at least a third pixel unit, a fourth pixel unit and a fifth pixel unit arranged sequentially along a first direction; the third pixel unit and the fourth pixel unit share the third sub-pixel, and the fourth pixel unit and the fifth pixel unit share the first sub-pixel.

[0026] In an exemplary embodiment, the plurality of pixel units include at least a sixth pixel unit, a seventh pixel unit and an eighth pixel unit arranged sequentially along a first direction; the sixth pixel unit and the seventh pixel unit share the third sub-pixel, and the seventh pixel unit and the eighth pixel unit share the first sub-pixel and the fourth sub-pixel.

[0027] In an exemplary embodiment, each of the pixel units includes one first sub-pixel, two second sub-pixels, one third sub-pixel, and one fourth sub-pixel.

[0028] In an exemplary embodiment, the shared sub-pixel includes at least one of the first sub-pixel, the third sub-pixel, and the fourth sub-pixel.

[0029] In an exemplary embodiment, a first minimum distance is provided between the orthographic projection of the first light-emitting area on the plane where the substrate substrate is located and the orthographic projection of the fourth light-emitting area on the plane where the substrate substrate is located, a second minimum distance is provided between the orthographic projection of the second light-emitting area on the plane where the substrate substrate is located and the orthographic projection of the fourth light-emitting area on the plane where the substrate substrate is located, and a third minimum distance is provided between the orthographic projection of the third light-emitting area on the plane where the substrate substrate is located and the orthographic projection of the fourth light-emitting area on the plane where the substrate substrate is located; wherein at least two of the first minimum distance, the second minimum distance and the third minimum distance are equal.

[0030] In an exemplary embodiment, the at least one pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the first sub-pixel includes the first light-emitting unit and has a first microcavity length H1; the second sub-pixel includes the second light-emitting unit and has a second microcavity length H2; the third sub-pixel includes the third light-emitting unit and has a third microcavity length H3; the fourth sub-pixel includes the fourth light-emitting unit and has a fourth microcavity length H4; wherein H1 is greater than H4, H4 is greater than H2, and H2 is greater than H3.

[0031] In an exemplary embodiment, the first light-emitting unit includes a first light-emitting device, and the first light-emitting device includes a first organic light-emitting layer; the second light-emitting unit includes a second light-emitting device, and the second light-emitting device includes a second organic light-emitting layer; the third light-emitting unit includes a third light-emitting device, and the third light-emitting device includes a third organic light-emitting layer; the fourth light-emitting unit includes a fourth light-emitting device, and the fourth light-emitting device includes a fourth organic light-emitting layer; along a direction perpendicular to the plane where the substrate is located, the first organic light-emitting layer has a first size L1, and the second organic light-emitting layer has a second size L2, and the third organic light-emitting layer has a third size L3, and the fourth organic light-emitting layer has a fourth size L4; wherein L1 is greater than L4, and L4 is greater than L2, and L2 is greater than L3.

[0032] In an exemplary embodiment, the first light-emitting unit includes a first light-emitting device, the first light-emitting device includes a first electrode, a first organic light-emitting layer, and a second electrode stacked in sequence, and the first electrode is closer to the base substrate than the second electrode; the fourth light-emitting unit includes a fourth light-emitting device, the fourth light-emitting device includes a seventh electrode, a fourth organic light-emitting layer, and an eighth electrode stacked in sequence, and the seventh electrode is closer to the base substrate than the eighth electrode;

[0033] Along a direction perpendicular to the plane where the substrate is located, the first electrode has a first thickness h1, and the seventh electrode has a seventh thickness h7, wherein h1 is greater than or equal to h7.

[0034] In an exemplary embodiment, the number of layers of the seventh electrode film is less than the number of layers of the first electrode film.

[0035] In an exemplary embodiment, the fourth light-emitting unit includes a fourth light-emitting device, and the fourth light-emitting device includes a seventh electrode, a fourth organic light-emitting layer and an eighth electrode stacked in sequence, and the seventh electrode is closer to the base substrate than the eighth electrode; wherein the material of the seventh electrode includes at least one metal material other than silver.

[0036] In an exemplary embodiment, the at least one pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the first sub-pixel includes the first light-emitting unit and has a first microcavity length H1; the second sub-pixel includes the second light-emitting unit and has a second microcavity length H2; the third sub-pixel includes the third light-emitting unit and has a third microcavity length H3; the fourth sub-pixel includes the fourth light-emitting unit and has a fourth microcavity length H4; wherein H1 is equal to H4, H4 is greater than H2, and H2 is greater than H3.

[0037] In an exemplary embodiment, the first light-emitting unit includes a first light-emitting device, which includes a first electrode, a first organic light-emitting layer, and a second electrode stacked in sequence, and the first electrode is closer to the base substrate than the second electrode; the fourth light-emitting unit includes a fourth light-emitting device, which includes a seventh electrode, a fourth organic light-emitting layer, and an eighth electrode stacked in sequence, and the seventh electrode is closer to the base substrate than the eighth electrode; wherein the first electrode and the seventh electrode are of the same layer structure.

[0038] In an exemplary embodiment, the first light-emitting unit includes a first light-emitting device, which includes a first electrode, a first organic light-emitting layer, and a second electrode stacked in sequence; the fourth light-emitting unit includes a fourth light-emitting device, which includes a seventh electrode, a fourth organic light-emitting layer, and an eighth electrode stacked in sequence, and the first light-emitting device and the fourth light-emitting device emit light of the same color;

[0039] The fourth light-emitting unit also includes a fourth color filter, which is located on a side of the fourth light-emitting device away from the substrate, the fourth color filter and the fourth light-emitting area at least partially overlap in their orthographic projection on the plane where the substrate is located, and the fourth color filter is configured to make the fourth light-emitting unit emit a fourth color light.

[0040] In an exemplary embodiment, the first light emitting device and the fourth light emitting device both emit red light.

[0041] In an exemplary embodiment, the at least one pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the fourth sub-pixel includes the fourth light-emitting unit and has a fourth microcavity length H4; wherein the fourth microcavity length H4 is equal to a non-integer multiple of the peak wavelength of the fourth color light; the peak wavelength range of the fourth color light is 525 nanometers to 585 nanometers.

[0042] In an exemplary embodiment, within the same pixel unit, a minimum distance between edges of the orthographic projections of two adjacent areas among the first light-emitting area, the second light-emitting area, the third light-emitting area, and the fourth light-emitting area on the plane where the substrate is located is 15 micrometers to 25 micrometers.

[0043] In an exemplary embodiment, the first light-emitting unit includes a first color filter and a first light-emitting device, the second light-emitting unit includes a second color filter and a second light-emitting device, the third light-emitting unit includes a third color filter and a third light-emitting device, and the fourth light-emitting unit includes a fourth color filter and a fourth light-emitting device;

[0044] The first color filter is located on a side of the first light-emitting device away from the base substrate, and the first color filter and the first light-emitting area at least partially overlap in an orthographic projection on a plane where the base substrate is located, and the first color filter is configured to make the first light-emitting unit emit a first color light;

[0045] The second color filter is located on a side of the second light-emitting device away from the base substrate, and the second color filter and the second light-emitting area at least partially overlap in an orthographic projection on a plane where the base substrate is located, and the second color filter is configured to make the second light-emitting unit emit a second color light;

[0046] The third color filter is located on a side of the third light-emitting device away from the base substrate, and the third color filter and the third light-emitting region at least partially overlap in orthographic projection on the plane where the base substrate is located, and the third color filter is configured to make the third light-emitting unit emit a third color light;

[0047] The fourth color filter is located on a side of the fourth light-emitting device away from the base substrate, and the fourth color filter and the fourth light-emitting area at least partially overlap in their orthographic projection on the plane where the base substrate is located, and the fourth color filter is configured to make the fourth light-emitting unit emit fourth color light.

[0048] In an exemplary embodiment, the orthographic projection of the edge of the first color filter on the plane where the substrate is located surrounds the orthographic projection of the edge of the first light-emitting area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 micrometers;

[0049] The orthographic projection of the edge of the second color filter on the plane where the base substrate is located surrounds the orthographic projection of the edge of the second light-emitting area on the plane where the base substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 microns;

[0050] The orthographic projection of the edge of the third color filter on the plane where the substrate is located surrounds the orthographic projection of the edge of the third light-emitting area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 microns;

[0051] The orthographic projection of the edge of the fourth color filter on the plane where the substrate is located surrounds the orthographic projection of the edge of the fourth light-emitting area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 microns.

[0052] In an exemplary embodiment, the display substrate further includes a light extraction layer, a first encapsulation layer, a color film structure layer and a protective layer located on one side of the base substrate; the first encapsulation layer is located on a side of the light extraction layer away from the base substrate, and the color film structure layer is located on a side of the first encapsulation layer away from the base substrate; the protective layer is located on a side of the color film structure layer away from the base substrate, and the thickness of the protective layer ranges from 2.0 microns to 5.0 microns.

[0053] In an exemplary embodiment, the peak wavelength range of the first color light is 615 nanometers to 625 nanometers; the peak wavelength range of the second color light is 515 nanometers to 525 nanometers; the peak wavelength range of the third color light is 455 nanometers to 465 nanometers; and the peak wavelength range of the fourth color light is 525 nanometers to 585 nanometers.

[0054] In an exemplary embodiment, the orthographic projection shapes of the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area on the plane where the substrate is located are any one of a triangle, a rectangle, a rhombus, a trapezoid, a pentagon, a hexagon or a circle.

[0055] In an exemplary embodiment, the second light-emitting region has a second light-emitting area, the third light-emitting region has a third light-emitting area, the first light-emitting region, the second light-emitting region, the third light-emitting region and the fourth light-emitting region have the same orthographic projection shape on the plane where the substrate is located, and the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area are all different; or, the first light-emitting region, the second light-emitting region, the third light-emitting region and the fourth light-emitting region have different orthographic projection shapes on the plane where the substrate is located.

[0056] On the other hand, an embodiment of the utility model provides a display substrate, the display substrate comprising a base substrate, a plurality of light-emitting units located on the same side of the base substrate, and a cutoff layer located on a side of the plurality of light-emitting units away from the base substrate; the plurality of light-emitting units at least comprises a first light-emitting unit emitting a first color light, a second light-emitting unit emitting a second color light, and a third light-emitting unit emitting a third color light; the first light-emitting unit has a first light-emitting area, the second light-emitting unit has a second light-emitting area, and the third light-emitting unit has a third light-emitting area; the first color is red;

[0057] The orthographic projection of the cutoff layer on the plane where the base substrate is located at least partially overlaps with the orthographic projection of the first light-emitting area on the plane where the base substrate is located, and the cutoff layer is configured to prevent light with a wavelength above 630 nanometers from emitting from the display substrate.

[0058] In an exemplary embodiment, the orthographic projection of the cut-off layer on the plane where the substrate is located includes the orthographic projection of the first light-emitting region on the plane where the substrate is located.

[0059] In an exemplary embodiment, an orthographic projection of the cutoff layer on the plane where the substrate is located at least partially overlaps with an orthographic projection of at least one of the second light emitting region and the third light emitting region on the plane where the substrate is located.

[0060] In an exemplary embodiment, in a plane perpendicular to the base substrate, the display substrate further comprises a light-emitting structure layer and a color film structure layer sequentially located on the same side of the base substrate; the light-emitting structure layer comprises at least a first light-emitting device of the first light-emitting unit, a second light-emitting device of the second light-emitting unit, and a third light-emitting device of the third light-emitting unit; the color film structure layer comprises at least a first color filter, a second color filter, and a third color filter; the cut-off layer is located on a side of the color film structure layer away from the base substrate.

[0061] In an exemplary embodiment, in a plane perpendicular to the base substrate, the display substrate further includes a light emitting structure layer located on one side of the base substrate; the light emitting structure layer includes at least a first light emitting device of the first light emitting unit, a second light emitting device of the second light emitting unit, and a third light emitting device of the third light emitting unit; the cutoff layer is located on a side of the light emitting structure layer away from the base substrate.

[0062] In an exemplary embodiment, the display substrate further includes a light adjustment layer, and the light adjustment layer is located on a side of the cut-off layer away from the base substrate, and the light adjustment layer at least includes a polarizer.

[0063] In another aspect, an embodiment of the present invention provides a display device, which includes the display substrate described in any one of the above embodiments.

[0064] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. Other advantages of the utility model can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The accompanying drawings are used to provide an understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0066] Figure 1 A display spectrum curve of a display device and a response spectrum curve of a night vision imaging system;

[0067] Figure 2 This is a schematic diagram of the structure of a display device according to an embodiment of the utility model;

[0068] Figure 3 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 1 ;

[0069] Figure 4A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 2 ;

[0070] Figure 5 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 3 ;

[0071] Figure 6 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 4 ;

[0072] Figure 7 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 5 ;

[0073] Figure 8 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 6 ;

[0074] Fig. 9 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 7 ;

[0075] Fig.10 It is a partial cross-sectional structural schematic diagram of a display device according to an embodiment of the utility model;

[0076] Fig.11 A display spectrum curve of the display device of the embodiment of the utility model and a response spectrum curve diagram of the night vision imaging system;

[0077] Fig.12 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 1 ;

[0078] Fig.13 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 2 ;

[0079] Fig.14 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 3 ;

[0080] Fig.15 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 4 ;

[0081] Fig.16 A partial cross-sectional view of a display device according to another embodiment of the present invention Figure 1 ;

[0082] Fig.17A partial cross-sectional view of a display device according to another embodiment of the present invention Figure 2 ;

[0083] Fig.18 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 1 ;

[0084] Fig.19 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 2 ;

[0085] Fig. 20 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 3 ;

[0086] Fig.21 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 4 ;

[0087] Fig. 22 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 5 .

[0088] Reference numerals:

[0089] 101-substrate, 102-driving circuit layer, 201-circuit structure layer, 202-connection layer, 103-light emitting structure layer, 301-first light emitting device, 301-1-first electrode, 301-2-second electrode, 301-3-first organic light emitting layer, 302-second light emitting device, 302-3-third electrode, 302-4-fourth electrode, 302-5-second organic light emitting layer, 303-third light emitting device, 303-5-fifth electrode, 303-6-sixth electrode, 303-7-third organic light emitting layer, 304-fourth light emitting device, 304-7-seventh electrode, 304-8- Eighth electrode, 304-9-fourth organic light-emitting layer, 305-light extraction layer, 306-pixel definition layer, 306-1-first opening area, 306-2-second opening area, 306-3-third opening area, 306-4-fourth opening area, 306a-partitioning portion, 104-first encapsulation layer, 105-touch structure layer, 106-color film structure layer, 601-first color filter, 602-second color filter, 603-third color filter, 604-fourth color filter; 109-protective layer, 110-light adjustment layer, 11-first edge, 12-second edge, 13-third edge edge, 14-fourth edge, 10-first light-emitting area, 20-second light-emitting area, 30-third light-emitting area, 40-fourth light-emitting area, 100-first central axis, 200-second central axis, P10-first connecting line, P20-second connecting line, P30-third connecting line, L11-first straight line, L22-second straight line, L33-third straight line, L44-fourth straight line, L55-fifth straight line, L66-sixth straight line, P11-first pixel unit, P22-second pixel unit, P33-third pixel unit, P44-fourth pixel unit, P55-fifth pixel unit, P66-sixth pixel unit Unit, P77-seventh pixel unit, P88-eighth pixel unit, P99-ninth pixel unit, P100-tenth pixel unit, P110-eleventh pixel unit, P120-twelfth pixel unit, 1-first light-emitting unit, 2-second light-emitting unit, 3-third light-emitting unit, 4-fourth light-emitting unit; 111-cutoff layer, 112-covering layer, P130-thirteenth pixel unit, P140-fourteenth pixel unit, P150-fifteenth pixel unit, P160-sixteenth pixel unit, P170-seventeenth pixel unit, P180-eighteenth pixel unit, P190-nineteenth pixel unit. DETAILED DESCRIPTION

[0090] In order to make the purpose, technical scheme and advantages of the utility model clearer, the embodiments of the utility model will be described in detail in conjunction with the accompanying drawings below. The embodiments can be implemented in a plurality of different forms. A person of ordinary skill in the art can easily understand the fact that the method and content can be transformed into one or more forms without departing from the purpose and scope of the utility model. Therefore, the utility model should not be interpreted as being limited to the contents described in the following embodiments. In the absence of conflict, the embodiments of the utility model and the features in the embodiments can be combined with each other arbitrarily.

[0091] In the drawings, the size of one or more components, the thickness of a layer, or an area is sometimes exaggerated for the sake of clarity. Therefore, one embodiment of the present invention is not necessarily limited to the size, and the shape and size of each component in the drawings do not reflect the true proportion. In addition, the drawings schematically show ideal examples, and one embodiment of the present invention is not limited to the shapes or values ​​shown in the drawings.

[0092] The ordinal numbers such as "first", "second", "third" and the like in the present invention are provided to avoid confusion of constituent elements, rather than to limit the quantity. The "plurality" in the present invention includes two and more than two.

[0093] In the present utility model, for the sake of convenience, the words and phrases indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The positional relationship of the constituent elements is appropriately changed according to the direction in which the constituent elements are described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the situation.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate, or the internal communication of two elements. For ordinary technicians in this field, the meanings of the above terms in the present invention can be understood according to the circumstances.

[0095] In the present invention, a transistor refers to an element including at least three terminals: a gate electrode, a drain electrode, and a source electrode. A transistor has a channel region between a drain electrode (drain electrode terminal, drain region, or drain) and a source electrode (source electrode terminal, source region, or source), and current can flow through the drain electrode, the channel region, and the source electrode. In the present invention, the channel region refers to a region where current mainly flows.

[0096] In the present invention, the first electrode may be a drain electrode and the second electrode may be a source electrode, or the first electrode may be a source electrode and the second electrode may be a drain electrode. In the case of using transistors with opposite polarities or when the current direction changes during circuit operation, the functions of the "source electrode" and the "drain electrode" are sometimes interchanged. Therefore, in the present invention, the "source electrode" and the "drain electrode" may be interchanged.

[0097] In the present utility model, "electrical connection" includes the situation where the components are connected together through an element having some electrical function. There is no particular limitation on the "element having some electrical function" as long as it can transmit and receive electrical signals between the connected components. Examples of "element having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having one or more functions.

[0098] In the present invention, "parallel" means that the angle formed by two straight lines is greater than -10° and less than 10°, and therefore, the angle may be greater than -5° and less than 5°. In addition, "perpendicular" means that the angle formed by two straight lines is greater than 80° and less than 100°, and therefore, the angle may be greater than 85° and less than 95°.

[0099] In the present invention, "film" and "layer" can be interchanged. For example, "conductive layer" can be replaced by "conductive film" in some cases. Similarly, "insulating film" can be replaced by "insulating layer" in some cases.

[0100] The term "approximately" in the present invention means that the limits are not strictly defined and the numerical value is allowed to be within the range of process and measurement errors.

[0101] The principle of the night vision imaging system is to use image enhancement technology and photoelectric conversion technology to enhance the infrared and near-infrared light in the environment outside the cabin that is invisible to the human eye or has low visual effects, and then convert it into an image visible to the human eye. Figure 1 As shown in FIG. 1 , the red spectrum displayed by an existing display device has a large overlap with the response spectrum of the night vision imaging system, such as Figure 1 As shown, the peak wavelength of the red spectrum is about 620 nanometers. Figure 1In the figure, the curve marked ① is the response spectrum curve of the night vision imaging system, and the curve marked ② is the spectrum curve displayed by the display device. The red light emitted by the display device will interfere with the imaging of the night vision imaging system.

[0102] The utility model provides a display substrate, comprising a base substrate and a plurality of pixel units located on the base substrate; at least one pixel unit comprises a first light-emitting unit emitting a first color light, a second light-emitting unit emitting a second color light, a third light-emitting unit emitting a third color light, and a fourth light-emitting unit emitting a fourth color light; the first light-emitting unit has a first light-emitting area, the second light-emitting unit has a second light-emitting area, the third light-emitting unit has a third light-emitting area, and the fourth light-emitting unit has a fourth light-emitting area;

[0103] The first light-emitting unit, the second light-emitting unit and the third light-emitting unit are configured to emit light in a normal display mode; the second light-emitting unit, the third light-emitting unit and the fourth light-emitting unit are configured to emit light in a night vision display mode, and the first light-emitting unit is configured not to emit light in the night vision display mode, and the first color is red;

[0104] The first light emitting region has a first light emitting area, the fourth light emitting region has a fourth light emitting area, and the fourth light emitting area is smaller than the first light emitting area.

[0105] The display substrate provided by the embodiment of the utility model can make the display device display normally during the day by adding a fourth light-emitting unit and rationally arranging the first to fourth light-emitting units. The light emitted by the display device at night will not interfere with the night vision device, the night vision device can work normally, the night vision device and the display device can be used at the same time, and it can be ensured that the image displayed by the display device is not distorted, thereby improving the compatibility of the display device and the night vision device.

[0106] Figure 2 FIG. 1 is a schematic diagram of the structure of a display device according to an embodiment of the present utility model. Figure 2As shown, the display device may include a timing controller, a data driver, a scan driver and a pixel array, the timing controller is respectively connected to the data driver and the scan driver, the data driver is respectively connected to a plurality of data signal lines (D1 to Dn), and the scan driver is respectively connected to a plurality of scan signal lines (S1 to Sm). The pixel array may include a plurality of sub-pixels Pxij, each sub-pixel Pxij may be connected to a corresponding data signal line and a corresponding scan signal line, and i and j may be natural numbers. At least one sub-pixel Pxij may include at least a circuit unit and a display unit, the circuit unit may include at least a pixel driving circuit, the pixel driving circuit is respectively connected to the scan signal line and the data signal line, the display unit may include at least a light-emitting device, the light-emitting device is connected to the pixel driving circuit of the circuit unit, and the sub-pixel Pxij may refer to a sub-pixel whose pixel driving circuit is connected to the i-th scan signal line and the j-th data signal line. In an exemplary embodiment, the timing controller may provide a grayscale value and a control signal suitable for the specifications of the data driver to the data driver, and may provide a clock signal, a scan start signal, etc. suitable for the specifications of the scan driver to the scan driver. The data driver may generate a data voltage to be provided to the data signal lines D1, D2, D3, ... and Dn using the grayscale value and the control signal received from the timing controller. For example, the data driver may sample the grayscale value using a clock signal, and apply the data voltage corresponding to the grayscale value to the data signal lines D1 to Dn in units of pixel columns, where n may be a natural number. The scan driver may generate a scan signal to be provided to the scan signal lines S1, S2, S3, ... and Sm by receiving a clock signal, a scan start signal, etc. from the timing controller. For example, the scan driver may sequentially provide a scan signal having a conduction level pulse to the scan signal lines S1 to Sm. For example, the scan driver may be configured in the form of a shift register, and may generate a scan signal in a manner that sequentially transmits a scan start signal provided in the form of a conduction level pulse to a next level circuit under the control of a clock signal, where m may be a natural number. In an exemplary embodiment, a pixel array may be provided on a display substrate.

[0107] Figure 3 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 1 .like Figure 3As shown, the display device may include a display substrate, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light, and the four sub-pixels may each include a pixel driving circuit and a light-emitting unit, the pixel driving circuit in the sub-pixel is respectively connected to a scan signal line and a data signal line, the pixel driving circuit is configured to receive a data voltage transmitted by the data signal line under the control of the scan signal line, and output a corresponding current to the light-emitting device in the light-emitting unit. The light-emitting devices in the sub-pixels are respectively connected to the pixel driving circuits of the sub-pixels, and the light-emitting devices are configured to emit light of corresponding brightness in response to the current output by the pixel driving circuit of the sub-pixel. The display substrate provided by the embodiment of the utility model can be applied to a normal display mode and a night vision display mode, in which the first sub-pixel emits a first color light in the normal display mode, and in the night vision display mode, the first sub-pixel does not emit the first color light, and the fourth sub-pixel emits the fourth color light. The display substrate is in the night vision display mode, the display device and the night vision device can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision device. The display substrate and the night vision device provided by the embodiment of the utility model have good compatibility and can ensure that the displayed image is not distorted.

[0108] In an exemplary embodiment, the first sub-pixel P1 may be a red sub-pixel emitting red (R) light, the second sub-pixel P2 may be a green sub-pixel emitting green (G) light, the third sub-pixel P3 may be a blue sub-pixel emitting blue (B) light, and the fourth sub-pixel P4 may be an orange sub-pixel emitting orange (O) light. The peak wavelength range of red light is 615 nanometers to 625 nanometers. The peak wavelength range of green light is 515 nanometers to 525 nanometers. The peak wavelength range of blue light is 455 nanometers to 465 nanometers. The peak wavelength range of orange light is 525 nanometers to 585 nanometers. In the embodiment of the utility model, red can also be called the first color, green can also be called the second color, blue can also be called the third color, and orange can also be called the fourth color. In the embodiment of the utility model, the first sub-pixel P1 includes a first light-emitting unit, and the first light-emitting unit is configured to emit light of the first color. The second sub-pixel P2 includes a second light-emitting unit, and the second light-emitting unit is configured to emit light of the second color. The third sub-pixel P3 includes a third light emitting unit configured to emit light of a third color. The fourth sub-pixel P4 includes a fourth light emitting unit configured to emit light of a fourth color.

[0109] In an exemplary embodiment, the first sub-pixel P1 may have a first light-emitting region 10, the second sub-pixel P2 may have a second light-emitting region 20, the third sub-pixel P3 may have a third light-emitting region 30, and the fourth sub-pixel P4 may have a fourth light-emitting region 40. The arrangement of the plurality of first light-emitting regions 10, the plurality of second light-emitting regions 20, the plurality of third light-emitting regions 30, and the plurality of fourth light-emitting regions 40 satisfies one of the following arrangement forms:

[0110] First arrangement form: the first light-emitting area 10, the second light-emitting area 20, and the third light-emitting area 30 are arranged alternately along the first direction X, and the second light-emitting area 20 and the fourth light-emitting area 40 are arranged alternately along the second direction Y. Second arrangement form: the first light-emitting area 10 and the third light-emitting area 30 are arranged alternately along the first direction X, the second light-emitting area 20 and the fourth light-emitting area 40 are arranged alternately along the first direction X, and the first light-emitting area 10 and the second light-emitting area 20 are arranged alternately along the second direction Y, and the third light-emitting area 30 and the fourth light-emitting area 40 are arranged alternately along the second direction Y. Third arrangement form: the first light-emitting area 10, the fourth light-emitting area 40, the third light-emitting area 30 and the fourth light-emitting area 40 are arranged alternately in sequence along the first direction X, and a plurality of second light-emitting areas 20 are arranged in sequence along the first direction X, the fourth light-emitting area 40 and the second light-emitting area 20 are arranged alternately in the second direction Y, and the first light-emitting area 10 and the third light-emitting area 30 are arranged alternately in the second direction Y. Fourth arrangement form: the first light-emitting area 10 and the third light-emitting area 30 are arranged alternately in sequence along the first direction X, and the first light-emitting area 10, the fourth light-emitting area 40 and the third light-emitting area 30 are arranged alternately in the second direction Y, and the plurality of second light-emitting areas 20 are arranged in sequence along the second direction Y. Fifth arrangement form: the third light-emitting area 30, the first light-emitting area 10 and the two second light-emitting areas 20 are arranged alternately in the first direction X, and the two second light-emitting areas 20 are arranged along the second direction Y, and the plurality of fourth light-emitting areas 40 are arranged along the second direction Y. In an exemplary embodiment, as Figure 3 As shown, the display substrate may have a first central axis 100 extending along a first direction X, and the display substrate may have a second central axis 200 extending along a second direction Y. The display substrate may include a plurality of pixel units P arranged in a matrix. In some possible embodiments, the plurality of pixel units P may be symmetrical along the first central axis 100, or the plurality of pixel units P may be symmetrical along the second central axis 200, or the plurality of pixel units P may be symmetrical along the first central axis 100 and along the second central axis 200. In an embodiment of the utility model, the first direction X intersects with the second direction Y, and a plane formed by the first direction X and the second direction Y is parallel to a plane where the display substrate is located.

[0111] In an exemplary embodiment, if Figure 3As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device through the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device through the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device through the third light-emitting area 30. The fourth sub-pixel P4 may have a fourth light-emitting area 40, and light may be emitted from the display device through the fourth light-emitting area 40. The orthographic projection shape of the first light-emitting area 10 on the plane where the display substrate is located may be any one of a triangle, a rectangle, a rhombus, a trapezoid, a pentagon, a hexagon or a circle, or the orthographic projection shape of the first light-emitting area 10 on the plane where the display substrate is located may be any one of an approximate triangle, an approximate rectangle, an approximate rhombus, an approximate trapezoid, an approximate pentagon or an approximate hexagon, etc., which is not limited in the present invention. The orthographic projection shape of the first light-emitting area 10 on the plane where the display substrate is located may include rounded corners or chamfers, etc. For example, the orthographic projection shape of the first light emitting region 10 on the plane where the display substrate is located may be an approximate rectangle, and one or more corners of the approximate rectangle may be rounded.

[0112] In an exemplary embodiment, the orthographic projection shape of the second light-emitting region 20 on the plane where the display substrate is located may be the same as or different from the orthographic projection shape of the first light-emitting region 10 on the plane where the display substrate is located. The orthographic projection shape of the third light-emitting region 30 on the plane where the display substrate is located may be the same as or different from the orthographic projection shape of the first light-emitting region 10 on the plane where the display substrate is located. The orthographic projection shape of the fourth light-emitting region 40 on the plane where the display substrate is located may be the same as or different from the orthographic projection shape of the first light-emitting region 10 on the plane where the display substrate is located.

[0113] In an exemplary embodiment, the orthographic projection shapes of the first light-emitting region 10, the second light-emitting region 20, the third light-emitting region 30 and the fourth light-emitting region 40 on the plane where the display substrate is located are the same, and the orthographic projection areas of the first light-emitting region 10, the second light-emitting region 20, the third light-emitting region 30 and the fourth light-emitting region 40 on the plane where the display substrate is located are all different. For example, the orthographic projection area of ​​the first light-emitting region 10 on the plane where the display substrate is located, the orthographic projection area of ​​the second light-emitting region 20 on the plane where the display substrate is located, the orthographic projection area of ​​the third light-emitting region 30 on the plane where the display substrate is located, and the orthographic projection area of ​​the fourth light-emitting region 40 on the plane where the display substrate is located vary in proportion. For example, the orthographic projection area of ​​the first light-emitting region 10 on the plane where the display substrate is located is twice the orthographic projection area of ​​the fourth light-emitting region 40 on the plane where the display substrate is located, the orthographic projection area of ​​the second light-emitting region 20 on the plane where the display substrate is located is twice the orthographic projection area of ​​the first light-emitting region 10 on the plane where the display substrate is located, and the orthographic projection area of ​​the third light-emitting region 30 on the plane where the display substrate is located is twice the orthographic projection area of ​​the second light-emitting region 20 on the plane where the display substrate is located. In the embodiment of the utility model, the orthographic projection area of ​​the first light-emitting region on the plane where the display substrate is located can also be referred to as the first light-emitting area, the orthographic projection area of ​​the second light-emitting region on the plane where the display substrate is located can also be referred to as the second light-emitting area, the orthographic projection area of ​​the third light-emitting region on the plane where the display substrate is located can also be referred to as the third light-emitting area, and the orthographic projection area of ​​the fourth light-emitting region on the plane where the display substrate is located can also be referred to as the fourth light-emitting area.

[0114] In an exemplary embodiment, if Figure 3 As shown, the first light emitting area 10, the second light emitting area 20 and the third light emitting area 30 are sequentially arranged at intervals along the first direction X. The fourth light emitting area 40 and the second light emitting area 20 are sequentially arranged at intervals along the second direction Y. For example, the fourth light emitting area 40 can be located on the side of the first light emitting area 10 in the opposite direction of the second direction Y.

[0115] In an exemplary embodiment, the first light emitting region 10 has a first light emitting area, the second light emitting region 20 has a second light emitting area, the third light emitting region 30 has a third light emitting area, and the fourth light emitting region 40 has a fourth light emitting area. For example, the third light emitting area is larger than the first light emitting area, and the third light emitting area is larger than the second light emitting area, and the third light emitting area is larger than the fourth light emitting area.

[0116] In an exemplary embodiment, the fourth light emitting area is smaller than the first light emitting area, and the ratio of the first light emitting area to the fourth light emitting area may be in a range of 1:0.1 to 1:0.5, which can ensure that the display substrate displays an image without distortion.

[0117] In an exemplary embodiment, among the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area, the fourth light-emitting area is the smallest, so that when the display substrate is in the night vision display mode, the display device and the night vision goggles can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision goggles, thereby improving the compatibility of the display device and the night vision goggles.

[0118] In an exemplary embodiment, within the same pixel unit, the minimum distance between the edges of the orthographic projections of two adjacent regions among the first light-emitting region 10, the second light-emitting region 20, the third light-emitting region 30 and the fourth light-emitting region 40 on the plane where the display substrate is located can be 15 microns to 25 microns.

[0119] Figure 4 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 2 .like Figure 4 As shown, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light, the first color may be red, the second color may be green, the third color may be blue, and the fourth color may be orange. Figure 4 As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device via the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device via the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device via the third light-emitting area 30. The fourth sub-pixel P4 may have a fourth light-emitting area 40, and light may be emitted from the display device via the fourth light-emitting area 40. The display substrate provided by the embodiment of the utility model can be applied to the normal display mode and the night vision display mode. In the normal display mode, the first sub-pixel emits light of the first color, and in the night vision display mode, the first sub-pixel does not emit light of the first color, and the fourth sub-pixel emits light of the fourth color. When the display substrate is in the night vision display mode, the display device and the night vision device can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision device. The display substrate provided by the embodiment of the utility model and the night vision device have good compatibility and can ensure that the displayed image is not distorted.

[0120] like Figure 4As shown, the first light-emitting region 10 and the second light-emitting region 20 may be arranged at intervals along the second direction Y, the third light-emitting region 30 and the fourth light-emitting region 40 may be arranged at intervals along the second direction Y, and the third light-emitting region 30 and the fourth light-emitting region 40 are located on one side of the extension direction of the first light-emitting region 10 and the second light-emitting region 20. For example, the third light-emitting region 30 is located on one side of the first direction X of the first light-emitting region 10, and the fourth light-emitting region 40 is located on one side of the first direction X of the second light-emitting region 20.

[0121] In an exemplary embodiment, if Figure 4 As shown, a line connecting the center of the orthographic projection of the first light-emitting area 10 on the plane where the display substrate is located and the center of the orthographic projection of the second light-emitting area 20 on the plane where the display substrate is located is a first line P10, and a line connecting the center of the orthographic projection of the third light-emitting area 30 on the plane where the display substrate is located and the center of the orthographic projection of the fourth light-emitting area 40 on the plane where the display substrate is located is a second line P20. The first line P10 may be parallel to the second line P20.

[0122] In an exemplary embodiment, the first light emitting region 10 has a first light emitting area, the second light emitting region 20 has a second light emitting area, the third light emitting region 30 has a third light emitting area, and the fourth light emitting region 40 has a fourth light emitting area. For example, the third light emitting area is larger than the first light emitting area, and the third light emitting area is larger than the second light emitting area, and the third light emitting area is larger than the fourth light emitting area.

[0123] In an exemplary embodiment, among the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area, the fourth light-emitting area is the smallest, so that when the display substrate is in the night vision display mode, the display device and the night vision goggles can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision goggles, thereby improving the compatibility of the display device and the night vision goggles.

[0124] In an exemplary embodiment, the fourth light emitting area is smaller than the first light emitting area, and the ratio of the first light emitting area to the fourth light emitting area may be in a range of 1:0.1 to 1:0.5, which can ensure that the display substrate displays an image without distortion.

[0125] In an exemplary embodiment, within the same pixel unit, the minimum distance between the edges of the orthographic projections of two adjacent regions among the first light-emitting region 10, the second light-emitting region 20, the third light-emitting region 30 and the fourth light-emitting region 40 on the plane where the display substrate is located can be 15 microns to 25 microns.

[0126] Figure 5 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 3 .like Figure 5As shown, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light, the first color may be red, the second color may be green, the third color may be blue, and the fourth color may be orange. Figure 5 As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device via the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device via the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device via the third light-emitting area 30. The fourth sub-pixel P4 may have a fourth light-emitting area 40, and light may be emitted from the display device via the fourth light-emitting area 40. The display substrate provided by the embodiment of the utility model can be applied to the normal display mode and the night vision display mode. In the normal display mode, the first sub-pixel emits light of the first color, and in the night vision display mode, the first sub-pixel does not emit light of the first color, and the fourth sub-pixel emits light of the fourth color. When the display substrate is in the night vision display mode, the display device and the night vision device can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision device. The display substrate provided by the embodiment of the utility model and the night vision device have good compatibility and can ensure that the displayed image is not distorted.

[0127] like Figure 5 As shown, the plurality of pixel units P may include a plurality of first pixel units P11, and the first pixel unit P11 may include a first sub-pixel P1, a second sub-pixel P2, a third sub-pixel P3, and a fourth sub-pixel P4. The line connecting the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located and the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located is a first straight line L11, the line connecting the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located and the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located is a second straight line L22, the line connecting the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located and the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located is a third straight line L33, the first straight line L11, the second straight line L22, and the third straight line L33 intersect to form a triangle, and the orthographic projection of the fourth light-emitting region 40 on the plane where the display substrate is located is located within the triangle. For example, the triangle may be an isosceles triangle.

[0128] In an exemplary embodiment, the center of the orthographic projection of the fourth light emitting area 40 on the plane where the display substrate is located coincides with the center of the triangle.

[0129] In an exemplary embodiment, the first light emitting region 10 has a first light emitting area, the second light emitting region 20 has a second light emitting area, the third light emitting region 30 has a third light emitting area, and the fourth light emitting region 40 has a fourth light emitting area. Figure 5 As shown, the first light-emitting area, the second light-emitting area, and the third light-emitting area can all be larger than the fourth light-emitting area, so that when the display substrate is in the night vision display mode, the display device and the night vision goggles can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision goggles, thereby improving the compatibility of the display device and the night vision goggles.

[0130] In an exemplary embodiment, if Figure 5 As shown, there is a first minimum spacing W1 between the orthographic projection of the first light-emitting area 10 on the plane where the display substrate is located and the orthographic projection of the fourth light-emitting area 40 on the plane where the display substrate is located, there is a second minimum spacing W2 between the orthographic projection of the second light-emitting area 20 on the plane where the display substrate is located and the orthographic projection of the fourth light-emitting area 40 on the plane where the display substrate is located, there is a third minimum spacing W3 between the orthographic projection of the third light-emitting area 30 on the plane where the display substrate is located and the orthographic projection of the fourth light-emitting area 40 on the plane where the display substrate is located, the first minimum spacing W1 can be equal to the second minimum spacing W2, and the first minimum spacing W1 can be equal to the third minimum spacing W3.

[0131] In some possible exemplary embodiments, at least two of the first minimum interval W1 , the second minimum interval W2 , and the third minimum interval W3 may be equal.

[0132] In an exemplary embodiment, if Figure 5 As shown, the plurality of pixel units P may include a plurality of second pixel units P22, and the second pixel unit P22 may include a first sub-pixel P1, a second sub-pixel P2, a third sub-pixel P3, and a fourth sub-pixel P4. The line connecting the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located and the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located is a fourth straight line L44, the line connecting the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located and the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located is a fifth straight line L55, the line connecting the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located and the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located is a sixth straight line L66, the fourth straight line L44, the fifth straight line L55, and the sixth straight line L66 intersect to form a triangle, and the orthographic projection of the fourth light-emitting region 40 on the plane where the display substrate is located is located within the triangle. For example, the triangle may be an isosceles triangle.

[0133] In an exemplary embodiment, if Figure 5As shown, a plurality of first pixel units P11 and a plurality of second pixel units P22 may be alternately arranged in sequence along the first direction X. The first straight line L11 and the fifth straight line L55 may be parallel, the second straight line L22 and the fourth straight line L44 may be parallel, and the third straight line L33 and the sixth straight line L66 may be parallel.

[0134] In an exemplary embodiment, the fourth light emitting area is smaller than the first light emitting area, and the ratio of the first light emitting area to the fourth light emitting area may be in a range of 1:0.1 to 1:0.5, which can ensure that the displayed image of the display substrate is not distorted.

[0135] In an exemplary embodiment, within the same pixel unit, the minimum distance between the edges of the orthographic projections of two adjacent regions among the first light-emitting region 10, the second light-emitting region 20, the third light-emitting region 30 and the fourth light-emitting region 40 on the plane where the display substrate is located can be 15 microns to 25 microns.

[0136] Figure 6 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 4 .like Figure 6 As shown, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light, the first color may be red, the second color may be green, the third color may be blue, and the fourth color may be orange. Figure 6 As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device via the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device via the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device via the third light-emitting area 30. The fourth sub-pixel P4 may have a fourth light-emitting area 40, and light may be emitted from the display device via the fourth light-emitting area 40. The display substrate provided by the embodiment of the utility model can be applied to the normal display mode and the night vision display mode. In the normal display mode, the first sub-pixel emits light of the first color, and in the night vision display mode, the first sub-pixel does not emit light of the first color, and the fourth sub-pixel emits light of the fourth color. When the display substrate is in the night vision display mode, the display device and the night vision device can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision device. The display substrate provided by the embodiment of the utility model and the night vision device have good compatibility and can ensure that the displayed image is not distorted.

[0137] like Figure 6As shown, the plurality of pixel units P may include a third pixel unit P33, a fourth pixel unit P44, and a fifth pixel unit P55 sequentially arranged along the first direction X. The third pixel unit P33 shares some sub-pixels with the fourth pixel unit P44, and the fourth pixel unit P44 shares some sub-pixels with the fifth pixel unit P55. In the embodiment of the utility model, the shared sub-pixels are referred to as shared sub-pixels, and the shared sub-pixels may include at least one of the first sub-pixel P1 and the third sub-pixel P3. For example, as Figure 6 As shown, the third pixel unit P33 and the fourth pixel unit P44 share a third sub-pixel P3. The fourth pixel unit P44 and the fifth pixel unit P55 share a first sub-pixel P1. This arrangement can increase the pixel density of the display substrate and reduce the size of the display substrate. Figure 6 As shown, the fourth light emitting region 40 may be located between the first light emitting region 10 and the third light emitting region 30 , and a plurality of fourth light emitting regions 40 may be arranged along the first direction X at intervals.

[0138] like Figure 6 As shown, the second sub-pixel P2 and the fourth sub-pixel P4 may be arranged in sequence along the second direction Y. The second light emitting region 20 and the fourth light emitting region 40 may be arranged in sequence along the second direction Y.

[0139] In an exemplary embodiment, the first light emitting region 10 has a first light emitting area, the second light emitting region 20 has a second light emitting area, the third light emitting region 30 has a third light emitting area, and the fourth light emitting region 40 has a fourth light emitting area. Figure 6 As shown, the first light-emitting area, the second light-emitting area, and the third light-emitting area can all be larger than the fourth light-emitting area, so that when the display substrate is in the night vision display mode, the display device and the night vision goggles can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision goggles, thereby improving the compatibility of the display device and the night vision goggles.

[0140] In an exemplary embodiment, the fourth light emitting area is smaller than the first light emitting area, and the ratio of the first light emitting area to the fourth light emitting area may be in a range of 1:0.1 to 1:0.3, which can ensure that the displayed image of the display substrate is not distorted.

[0141] Figure 7 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 5 .like Figure 7As shown, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light, the first color may be red, the second color may be green, the third color may be blue, and the fourth color may be orange. Figure 7 As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device via the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device via the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device via the third light-emitting area 30. The fourth sub-pixel P4 may have a fourth light-emitting area 40, and light may be emitted from the display device via the fourth light-emitting area 40. The display substrate provided by the embodiment of the utility model can be applied to the normal display mode and the night vision display mode. In the normal display mode, the first sub-pixel emits light of the first color, and in the night vision display mode, the first sub-pixel does not emit light of the first color, and the fourth sub-pixel emits light of the fourth color. When the display substrate is in the night vision display mode, the display device and the night vision device can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision device. The display substrate provided by the embodiment of the utility model and the night vision device have good compatibility and can ensure that the displayed image is not distorted.

[0142] like Figure 7 As shown, the plurality of pixel units P may include a sixth pixel unit P66, a seventh pixel unit P77, and an eighth pixel unit P88 sequentially arranged along the first direction X. The sixth pixel unit P66 shares some sub-pixels with the seventh pixel unit P77, and the seventh pixel unit P77 shares some sub-pixels with the eighth pixel unit P88. In the embodiment of the utility model, the shared sub-pixels are referred to as shared sub-pixels, and the shared sub-pixels may include at least one of the first sub-pixel P1, the third sub-pixel P3, and the fourth sub-pixel P4. For example, as Figure 7 As shown, the sixth pixel unit P66 and the seventh pixel unit P77 share a third sub-pixel P3. The seventh pixel unit P77 and the eighth pixel unit P88 share a first sub-pixel P1 and a fourth sub-pixel P4. This arrangement can increase the pixel density of the display substrate and reduce the size of the display substrate. Figure 7 As shown, for example, one fourth light emitting region 40 may be located between two adjacent second light emitting regions 20 , and a plurality of fourth light emitting regions 40 may be arranged along the first direction X at intervals.

[0143] In an exemplary embodiment, if Figure 7 As shown, the fourth subpixel P4 and the first subpixel P1 may be arranged in a group, and the fourth subpixel P4 and the first subpixel P1 in the same group may be arranged adjacent to each other along the second direction Y.

[0144] In an exemplary embodiment, the first light emitting region 10 has a first light emitting area, the second light emitting region 20 has a second light emitting area, the third light emitting region 30 has a third light emitting area, and the fourth light emitting region 40 has a fourth light emitting area. Figure 7 As shown, the first light-emitting area, the second light-emitting area, and the third light-emitting area can all be larger than the fourth light-emitting area, so that when the display substrate is in the night vision display mode, the display device and the night vision goggles can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision goggles, thereby improving the compatibility of the display device and the night vision goggles.

[0145] In an exemplary embodiment, the fourth light emitting area is smaller than the first light emitting area, and the ratio of the first light emitting area to the fourth light emitting area may be in a range of 1:0.1 to 1:0.5, which can ensure that the displayed image of the display substrate is not distorted.

[0146] In an exemplary embodiment, within the same pixel unit, the minimum distance between the edges of the orthographic projections of two adjacent regions among the first light-emitting region 10, the second light-emitting region 20, the third light-emitting region 30 and the fourth light-emitting region 40 on the plane where the display substrate is located can be 15 microns to 25 microns.

[0147] Figure 8 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 6 .like Figure 8 As shown, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light, the first color may be red, the second color may be green, the third color may be blue, and the fourth color may be orange. Figure 8As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device via the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device via the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device via the third light-emitting area 30. The fourth sub-pixel P4 may have a fourth light-emitting area 40, and light may be emitted from the display device via the fourth light-emitting area 40. The display substrate provided by the embodiment of the utility model can be applied to the normal display mode and the night vision display mode. In the normal display mode, the first sub-pixel emits light of the first color, and in the night vision display mode, the first sub-pixel does not emit light of the first color, and the fourth sub-pixel emits light of the fourth color. When the display substrate is in the night vision display mode, the display device and the night vision device can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision device. The display substrate provided by the embodiment of the utility model and the night vision device have good compatibility and can ensure that the displayed image is not distorted.

[0148] like Figure 8 As shown, the plurality of pixel units P may include at least one ninth pixel unit P99 and one tenth pixel unit P100, and the ninth pixel unit P99 and the tenth pixel unit P100 may each include one first sub-pixel P1, two second sub-pixels P2, one third sub-pixel P3, and one fourth sub-pixel P4. The two second sub-pixels P2 located in the same ninth pixel unit P99 may be arranged at intervals along the second direction Y.

[0149] A plurality of ninth pixel units P99 and a plurality of tenth pixel units P100 may be arranged alternately in sequence along the second direction Y. Some sub-pixels of adjacent ninth pixel units P99 and tenth pixel units P100 are shared. In the embodiment of the utility model, the shared sub-pixels are referred to as shared sub-pixels, and the shared sub-pixels may include at least one of the first sub-pixel P1 and the third sub-pixel P3. Figure 8 As shown, the first sub-pixel P1 and the third sub-pixel P3 in the adjacent ninth pixel unit P99 and the tenth pixel unit P100 are shared, and the second sub-pixel P2 in the adjacent ninth pixel unit P99 and the tenth pixel unit P100 are respectively located on the opposite sides of the first sub-pixel P1 and the third sub-pixel P3 along the second direction Y.

[0150] In an exemplary embodiment, if Figure 8 As shown, a line connecting the center of the orthographic projection of the first light-emitting area 10 on the plane where the display substrate is located and the center of the orthographic projection of the third light-emitting area 30 on the plane where the display substrate is located is a third line P30. The third line P30 can extend along the first direction X, and the adjacent ninth pixel unit P99 and tenth pixel unit P100 can be symmetrical about the third line P30.

[0151] In an exemplary embodiment, the first light emitting region 10 has a first light emitting area, the second light emitting region 20 has a second light emitting area, the third light emitting region 30 has a third light emitting area, and the fourth light emitting region 40 has a fourth light emitting area. Figure 8 As shown, the first light-emitting area, the second light-emitting area, and the third light-emitting area are all larger than the fourth light-emitting area, so that when the display substrate is in the night vision display mode, the display device and the night vision goggles can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision goggles, thereby improving the compatibility of the display device and the night vision goggles.

[0152] In an exemplary embodiment, the fourth light emitting area is smaller than the first light emitting area, and the ratio of the first light emitting area to the fourth light emitting area may be in a range of 1:0.1 to 1:0.3, which can ensure that the displayed image of the display substrate is not distorted.

[0153] Fig. 9 A schematic diagram of the planar structure of a display device according to an embodiment of the present invention Figure 7 .like Fig. 9 As shown, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light, the first color may be red, the second color may be green, the third color may be blue, and the fourth color may be orange. Fig. 9 As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device via the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device via the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device via the third light-emitting area 30. The fourth sub-pixel P4 may have a fourth light-emitting area 40, and light may be emitted from the display device via the fourth light-emitting area 40. The display substrate provided by the embodiment of the utility model can be applied to the normal display mode and the night vision display mode. In the normal display mode, the first sub-pixel emits light of the first color, and in the night vision display mode, the first sub-pixel does not emit light of the first color, and the fourth sub-pixel emits light of the fourth color. When the display substrate is in the night vision display mode, the display device and the night vision device can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision device. The display substrate provided by the embodiment of the utility model and the night vision device have good compatibility and can ensure that the displayed image is not distorted.

[0154] like Fig. 9As shown, the plurality of pixel units P may include at least one eleventh pixel unit P110 and one twelfth pixel unit P120, and the eleventh pixel unit P110 and the twelfth pixel unit P120 may each include one first sub-pixel P1, two second sub-pixels P2, one third sub-pixel P3, and one fourth sub-pixel P4. The two second sub-pixels P2 located in the same eleventh pixel unit P110 may be arranged at intervals along the second direction Y.

[0155] A plurality of eleventh pixel units P110 and a plurality of twelfth pixel units P120 may be arranged alternately in sequence along the second direction Y. Some sub-pixels of the adjacent eleventh pixel units P110 and twelfth pixel units P120 are shared. In the embodiment of the present utility model, the shared sub-pixels are referred to as shared sub-pixels, and the shared sub-pixels may include at least one of the first sub-pixel P1, the fourth sub-pixel P4, and the third sub-pixel P3. Fig. 9 As shown, the first sub-pixel P1, the fourth sub-pixel P4 and the third sub-pixel P3 in the adjacent eleventh pixel unit P110 and the twelfth pixel unit P120 are shared, and the second sub-pixel P2 in the adjacent eleventh pixel unit P110 and the twelfth pixel unit P120 are respectively located on the opposite sides of the first sub-pixel P1 and the third sub-pixel P3 along the second direction Y.

[0156] In an exemplary embodiment, if Fig. 9 As shown, the first sub-pixel P1 and the fourth sub-pixel P4 are arranged in a group, and the first sub-pixel P1 and the fourth sub-pixel P4 are arranged at intervals along the second direction Y.

[0157] In an exemplary embodiment, the first light emitting region 10 has a first light emitting area, the second light emitting region 20 has a second light emitting area, the third light emitting region 30 has a third light emitting area, and the fourth light emitting region 40 has a fourth light emitting area. Fig. 9 As shown, the first light-emitting area, the second light-emitting area, and the third light-emitting area are all larger than the fourth light-emitting area, so that when the display substrate is in the night vision display mode, the display device and the night vision goggles can work at the same time, and the light emitted by the display substrate will not affect the normal operation of the night vision goggles, thereby improving the compatibility of the display device and the night vision goggles.

[0158] In an exemplary embodiment, the fourth light emitting area is smaller than the first light emitting area, and the ratio of the first light emitting area to the fourth light emitting area may be in a range of 1:0.1 to 1:0.5, which can ensure that the displayed image of the display substrate is not distorted.

[0159] Fig.10 FIG. 1 is a schematic diagram of a partial cross-sectional structure of a display device according to an embodiment of the present utility model. Fig.10As shown, only one pixel unit is illustrated as an example, the pixel unit may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, a third sub-pixel P3 emitting a third color light, and a fourth sub-pixel P4 emitting a fourth color light. The first sub-pixel P1 may include a first light-emitting unit 1, and the first light-emitting unit 1 is configured to emit a first color light. The second sub-pixel P2 may include a second light-emitting unit 2, and the second light-emitting unit 2 is configured to emit a second color light. The third sub-pixel P3 may include a third light-emitting unit 3, and the third light-emitting unit 3 is configured to emit a third color light. The fourth sub-pixel P4 may include a fourth light-emitting unit 4, and the fourth light-emitting unit 4 is configured to emit a fourth color light. The first light-emitting unit 1 has a first light-emitting area, the second light-emitting unit 2 has a second light-emitting area, the third light-emitting unit 3 has a third light-emitting area, and the fourth light-emitting unit 4 has a fourth light-emitting area. The first light-emitting unit 1, the second light-emitting unit 2 and the third light-emitting unit 3 are configured to emit light in the normal display mode, and the fourth light-emitting unit 4 is configured to emit light in the normal display mode, or the fourth light-emitting unit 4 is configured not to emit light in the normal display mode. The second light-emitting unit 2, the third light-emitting unit 3 and the fourth light-emitting unit 4 are configured to emit light in the night vision display mode, and the first light-emitting unit 1 is configured not to emit light in the night vision display mode. The display substrate provided by the embodiment of the utility model, by adding a fourth light-emitting unit and rationally arranging the first to fourth light-emitting units, can make the display device display normally during the day, the light emitted by the display device at night will not interfere with the night vision device, the night vision device can work normally, the night vision device and the display device can be used at the same time, and it can be ensured that the image displayed by the display device is not distorted.

[0160] like Fig.10As shown, the display device may include a display substrate, and the display substrate may include a base substrate 101 and a driving circuit layer 102, a light emitting structure layer 103, a first encapsulation layer 104, a touch structure layer 105, a color film structure layer 106, a protective layer 109 and a light adjustment layer 110 sequentially arranged on one side of the base substrate 101. In some possible implementations, the display device may also include other film layers, which are not limited by the present invention. The light emitting structure layer 103 may include a plurality of light emitting devices, and the plurality of light emitting devices may include at least a first light emitting device 301, a second light emitting device 302, a third light emitting device 303 and a fourth light emitting device 304. The color film structure layer 106 may include a plurality of color filters, and the plurality of color filters may include at least a first color filter 601, a second color filter 602, a third color filter 603 and a fourth color filter 604. The first light-emitting unit 1 may include a first light-emitting device 301 and a first color filter 601, the second light-emitting unit 2 may include a second light-emitting device 302 and a second color filter 602, the third light-emitting unit 3 may include a third light-emitting device 303 and a third color filter 603, and the fourth light-emitting unit 4 may include a fourth light-emitting device 304 and a fourth color filter 604.

[0161] In an exemplary embodiment, the substrate 101 may be a silicon-on-insulator (SOI) substrate or a glass substrate. The driving circuit layer 102 may be prepared on the substrate 101 by a silicon semiconductor process (e.g., a CMOS process). The driving circuit layer 102 may include a plurality of circuit units, and the circuit unit may include at least a pixel driving circuit, and the pixel driving circuit is connected to a scanning signal line and a data signal line, respectively, and the pixel driving circuit may include a plurality of transistors and a storage capacitor. The transistor may include a gate electrode, a first pole and a second pole, and for example, the gate electrode, the first pole and the second pole may be connected to corresponding connection electrodes by vias filled with tungsten metal (i.e., tungsten vias, W-vias), respectively, and may be connected to other electrical structures (e.g., routing, etc.) by connecting electrodes. In an embodiment of the utility model, the plane where the substrate is located is parallel to the plane where the display substrate is located.

[0162] In an exemplary embodiment, the driving circuit layer 102 may include a circuit structure layer 201 and a connection layer 202. The circuit structure layer 201 may include a plurality of pixel driving circuits, the pixel driving circuit may include a plurality of transistors and storage capacitors, and the transistor may include a gate electrode, a first pole and a second pole. The connection layer 202 may include a plurality of connection electrodes, and the plurality of connection electrodes may include at least a first connection electrode, a second connection electrode, a third connection electrode and a fourth connection electrode. The first connection electrode is configured to connect the first light-emitting device 301 and the pixel driving circuit electrically connected thereto. The second connection electrode is configured to connect the second light-emitting device 302 and the pixel driving circuit electrically connected thereto. The third connection electrode is configured to connect the third light-emitting device 303 and the pixel driving circuit electrically connected thereto. The fourth connection electrode is configured to connect the fourth light-emitting device 304 and the pixel driving circuit electrically connected thereto.

[0163] In an exemplary embodiment, the material of the connection layer 202 may be a metal material, such as any one or more of molybdenum (Mo), aluminum (Al), copper (Cu), and titanium (Ti). Alternatively, it may be an alloy material of metal materials such as molybdenum (Mo), aluminum (Al), copper (Cu), and titanium (Ti), such as aluminum-neodymium alloy (AlNd) or molybdenum-niobium alloy (MoNb), and molybdenum-nickel-titanium alloy (MoNiTi). The connection layer 202 may be a single-layer structure or a multi-layer composite structure, such as Ti / Al / Ti or Mo / Nb / Cu or MoNiTi / Cu or MoNb / Cu / MoNiTi or MoNiTi / Cu / MoNiTi, etc.

[0164] In an exemplary embodiment, the light emitting structure layer 103 may include a plurality of light emitting devices, and the light emitting device may include at least a first electrode, an organic light emitting layer, and a second electrode. The first electrode may be connected to the second electrode of the transistor through a connecting electrode, the organic light emitting layer is connected to the first electrode, the second electrode is connected to the organic light emitting layer, and the second electrode may be connected to a second power line. The organic light emitting layer emits light under the drive of the first electrode and the second electrode. For example, the first electrode may be an anode of the light emitting device, and the second electrode may be a cathode of the light emitting device. In an exemplary embodiment, the organic light emitting layer may include a light emitting layer (EML for short), and any one or more of the following: a hole injection layer (HIL), a hole transport layer (HTL), an electron blocking layer (EBL), a hole blocking layer (HBL), an electron transport layer (ETL), and an electron injection layer (EIL). In some possible implementations, for a light emitting device emitting white light, the organic light emitting layers of all sub-pixels may be a common layer connected together.

[0165] In an exemplary embodiment, if Fig.10As shown, in a plane perpendicular to the base substrate 101, the light emitting structure layer 103 may include an anode layer, an organic light emitting layer, and a cathode layer stacked in sequence in a direction away from the base substrate 101. The light emitting structure layer 103 may include a plurality of light emitting devices, and the plurality of light emitting devices may include at least a first light emitting device 301, a second light emitting device 302, a third light emitting device 303, and a fourth light emitting device 304. In the embodiment of the utility model, the first light emitting device 301 may be configured to emit light of a first color, the second light emitting device 302 may be configured to emit light of a second color, the third light emitting device 303 may be configured to emit light of a third color, and the fourth light emitting device 304 may be configured to emit light of a first color.

[0166] In an exemplary embodiment, if Fig.10 As shown, the first sub-pixel P1 may have a first microcavity length H1, the second sub-pixel P2 may have a second microcavity length H2, the third sub-pixel P3 may have a third microcavity length H3, and the fourth sub-pixel P4 may have a fourth microcavity length H4, H1 is greater than H4, H4 is greater than H2, and H2 is greater than H3. The display substrate provided by the embodiment of the utility model can utilize the strong microcavity effect so that among the light emitted by the organic light-emitting layer of each sub-pixel, the light near the wavelength corresponding to the resonant wavelength of the microcavity length is strengthened and the spectrum is broadened, and the light of other wavelengths not corresponding to the resonant wavelength is weakened and the spectrum is narrowed, so that the light-emitting structure layer located in the first sub-pixel P1 mainly emits the light of the first color, the light-emitting structure layer located in the second sub-pixel P2 mainly emits the light of the second color, the light-emitting structure layer located in the third sub-pixel P3 mainly emits the light of the third color, and the light-emitting structure layer located in the fourth sub-pixel P4 mainly emits the light of the first color. Since the color of the light emitted by the light emitting structure layer located in the first sub-pixel, the second sub-pixel and the third sub-pixel is the same as the color of the light allowed to pass through the color filter of the sub-pixel, the light energy loss caused by the light passing through the color filter can be minimized, thereby improving the light extraction efficiency of the display substrate and enhancing the display effect of the display product. In the embodiment of the utility model, the microcavity length refers to the distance of the optical resonant cavity between the cathode and the anode of the sub-pixel.

[0167] In an exemplary embodiment, if Fig.10As shown, the first light emitting device 301 may include a first electrode 301-1, a first organic light emitting layer 301-3, and a second electrode 301-2. The first electrode 301-1 may be located at the anode layer, the first organic light emitting layer 301-3 may be located at the organic light emitting layer, and the second electrode 301-2 may be located at the cathode layer. The first electrode 301-1 may be connected to the second electrode of the transistor through a first connecting electrode, the first organic light emitting layer 301-3 is connected to the first electrode 301-1, the second electrode 301-2 is connected to the first organic light emitting layer 301-3, and the second electrode 301-2 may be connected to a second power line. The first organic light emitting layer 301-3 emits light under the drive of the first electrode 301-1 and the second electrode 301-2. In an embodiment of the utility model, the second power line is configured to continuously provide a low level signal to the light emitting device. The first electrode 301-1 may be the anode of the first light emitting device 301, and the second electrode 301-2 may be the cathode of the first light emitting device 301.

[0168] In an exemplary embodiment, if Fig.10 As shown, the second light emitting device 302 may include a third electrode 302-3, a second organic light emitting layer 302-5 and a fourth electrode 302-4, the third electrode 302-3 may be located in the anode layer, the second organic light emitting layer 302-5 may be located in the organic light emitting layer, and the fourth electrode 302-4 may be located in the cathode layer. The third electrode 302-3 may be connected to the second electrode of the transistor through the second connecting electrode, the second organic light emitting layer 302-5 is connected to the third electrode 302-3, the fourth electrode 302-4 is connected to the second organic light emitting layer 302-5, the fourth electrode 302-4 may be connected to the second power line, and the second organic light emitting layer 302-5 emits light under the drive of the third electrode 302-3 and the fourth electrode 302-4. The third electrode 302-3 may be the anode of the second light emitting device 302, and the fourth electrode 302-4 may be the cathode of the second light emitting device 302.

[0169] In an exemplary embodiment, if Fig.10As shown, the third light emitting device 303 may include a fifth electrode 303-5, a third organic light emitting layer 303-7 and a sixth electrode 303-6, the fifth electrode 303-5 may be located in the anode layer, the third organic light emitting layer 303-7 may be located in the organic light emitting layer, and the sixth electrode 303-6 may be located in the cathode layer. The fifth electrode 303-5 may be connected to the second electrode of the transistor through the third connecting electrode, the third organic light emitting layer 303-7 may be connected to the fifth electrode 303-5, the sixth electrode 303-6 may be connected to the third organic light emitting layer 303-7, the sixth electrode 303-6 may be connected to the second power line, and the third organic light emitting layer 303-7 may emit light under the driving of the fifth electrode 303-5 and the sixth electrode 303-6. The fifth electrode 303-5 may be the anode of the third light emitting device 303, and the sixth electrode 303-6 may be the cathode of the third light emitting device 303.

[0170] In an exemplary embodiment, if Fig.10 As shown, the fourth light emitting device 304 may include a seventh electrode 304-7, a fourth organic light emitting layer 304-9 and an eighth electrode 304-8, the seventh electrode 304-7 may be located in the anode layer, the fourth organic light emitting layer 304-9 may be located in the organic light emitting layer, and the eighth electrode 304-8 may be located in the cathode layer. The seventh electrode 304-7 may be connected to the second electrode of the transistor through the fourth connecting electrode, the fourth organic light emitting layer 304-9 is connected to the seventh electrode 304-7, the eighth electrode 304-8 is connected to the fourth organic light emitting layer 304-9, the eighth electrode 304-8 may be connected to the second power line, and the fourth organic light emitting layer 304-9 emits light under the drive of the seventh electrode 304-7 and the eighth electrode 304-8. The seventh electrode 304-7 may be the anode of the fourth light emitting device 304, and the eighth electrode 304-8 may be the cathode of the fourth light emitting device 304. The cathode of the first light emitting device 301, the cathode of the second light emitting device 302, the cathode of the third light emitting device 303 and the cathode of the fourth light emitting device 304 can be an integrated structure connected to each other. For example, the structures of the first organic light emitting layer 301-3 and the fourth organic light emitting layer 304-9 can be the same, and the first light emitting device 301 and the fourth light emitting device 304 can both emit red light.

[0171] In an exemplary embodiment, if Fig.10As shown, along the thickness direction of the display substrate, the first organic light-emitting layer 301-3 has a first size L1, the second organic light-emitting layer 302-5 has a second size L2, the third organic light-emitting layer 303-7 has a third size L3, and the fourth organic light-emitting layer 304-9 has a fourth size L4, the first size L1 is greater than the fourth size L4, and the fourth size L4 is greater than the second size L2, and the second size L2 is greater than the third size L3. The display substrate provided by the embodiment of the utility model can adjust the first size L1, the second size L2, the third size L3 and the fourth size L4 so that the first sub-pixel P1 has a first micro-cavity length H1, the second sub-pixel P2 has a second micro-cavity length H2, the third sub-pixel P3 has a third micro-cavity length H3, and the fourth sub-pixel P4 has a fourth micro-cavity length H4.

[0172] In an exemplary embodiment, in a plane perpendicular to the base substrate 101, the light emitting structure layer 103 may further include a light extraction layer 305, and the light extraction layer 305 is located on the side of the cathode layer away from the base substrate 101. The orthographic projection of the light extraction layer 305 on the plane where the base substrate 101 is located may include the orthographic projection of the first light emitting device 301, the second light emitting device 302, the third light emitting device 303 and the fourth light emitting device 304 on the plane where the base substrate 101 is located. The light extraction layer can enhance the light extraction effect. The material of the light extraction layer 305 may include an organic material, for example, an organic material such as any one or more of epoxy resin, phenolic resin, urea-formaldehyde resin, melamine formaldehyde resin, furan resin, silicone resin, polyester resin, polyamide resin, acrylic resin, polyurethane, vinyl resin, hydrocarbon resin, polyether resin, etc.

[0173] In an exemplary embodiment, if Fig.10 As shown, the light emitting structure layer 103 may further include a pixel definition layer 306, and the pixel definition layer 306 may have a plurality of opening regions, and the plurality of opening regions may at least include a first opening region 306-1, a second opening region 306-2, a third opening region 306-3, and a fourth opening region 306-4. In the embodiment of the utility model, the first opening region is the aforementioned first light emitting region, the second opening region is the aforementioned second light emitting region, the third opening region is the aforementioned third light emitting region, and the fourth opening region is the aforementioned fourth light emitting region.

[0174] The pixel definition layer 306 may include a plurality of partitions 306a, and the partitions 306a may be arranged around the opening area. The structures of the plurality of partitions 306a may be the same or different. The light emitted by the first light emitting device 301 may be emitted through the corresponding first opening area 306-1. The light emitted by the second light emitting device 302 may be emitted through the corresponding second opening area 306-2. The light emitted by the third light emitting device 303 may be emitted through the corresponding third opening area 306-3. The light emitted by the fourth light emitting device 304 may be emitted through the corresponding fourth opening area 306-4.

[0175] In an exemplary embodiment, the partition 306a may include a plurality of film layers. For example, the partition 306a may include three film layers, and the plurality of film layers constituting the partition 306a may form an undercut structure, which may reduce the size of the partition, improve the aperture ratio of the display substrate, and facilitate the disconnection of the organic light-emitting layer at the partition, which may avoid crosstalk between adjacent sub-pixels, and improve the display quality of the display product. The partition with the undercut structure may avoid the problem of cathode puncture or fracture caused by deformation of its edge.

[0176] In an exemplary embodiment, the partition 306a may include a plurality of film layers, and the material of the plurality of film layers may include silicon oxide (SiO x ) and silicon nitride (SiN x ), etc. For example, silicon oxide may be silicon oxide, and silicon nitride may be silicon nitride. For example, the partition 306a may be a composite film layer structure of silicon oxide, silicon nitride and silicon oxide, and designing the materials of the multiple film layers to be different may make the partition conducive to forming an undercut structure.

[0177] In an exemplary embodiment, the first encapsulation layer 104 may adopt a thin film encapsulation (Thin Film Encapsulation, referred to as TFE) method to ensure that external water vapor cannot enter the light-emitting structure layer. In one example, the first encapsulation layer 104 may include a first encapsulation sublayer, a second encapsulation sublayer and a third encapsulation sublayer, and the second encapsulation sublayer may be located between the first encapsulation sublayer and the third encapsulation sublayer. The materials of the first encapsulation sublayer and the third encapsulation sublayer may both be inorganic materials, and the material of the second encapsulation sublayer may be organic materials. The first encapsulation layer 104 forms a laminated structure of inorganic material / organic material / inorganic material, which can ensure that external water vapor cannot enter the light-emitting structure layer, and can improve the reliability of the light-emitting structure layer. For example, the inorganic material is, for example, silicon oxynitride (SiO x N y ) or silicon nitride (SiN x ) or silicon oxide (SiO x) etc. Any one or more of organic materials, for example, any one or more of epoxy resin, phenolic resin, urea-formaldehyde resin, melamine-formaldehyde resin, furan resin, silicone resin, polyester resin, polyamide resin, acrylic resin, polyurethane, vinyl resin, hydrocarbon resin, polyether resin, etc.

[0178] In an exemplary embodiment, the thickness of the first encapsulation layer 104 may range from 8.0 micrometers to 20 micrometers.

[0179] In an exemplary embodiment, the touch structure layer 105 may include a plurality of touch electrodes, and the plurality of touch electrodes may include at least a drive (Tx) electrode and a sense (Rx) electrode. For example, the touch electrode may be in the form of a transparent conductive electrode. For example, the touch electrode may be in the form of a metal grid, the metal grid is formed by interweaving a plurality of metal wires, the metal grid includes a plurality of grid patterns, and the grid pattern may be a polygon formed by a plurality of metal wires. The metal grid touch electrode has the advantages of low resistance, small thickness, and fast response speed.

[0180] In an exemplary embodiment, the color film structure layer 106 may include a black matrix (BM) and a plurality of color filters (CF), and the black matrix may be located between two adjacent color filters. The plurality of color filters (CF) may include at least a first color filter 601, a second color filter 602, a third color filter 603, and a fourth color filter 604. The first sub-pixel P1 includes a first color filter 601, and the first color filter 601 is configured to allow only light of the first color to be emitted. The second sub-pixel P2 includes a second color filter 602, and the second color filter 602 is configured to allow only light of the second color to be emitted. The third sub-pixel P3 includes a third color filter 603, and the third color filter 603 is configured to allow only light of the third color to be emitted. The fourth sub-pixel P4 includes a fourth color filter 604, and the fourth color filter 604 is configured to allow only light of the fourth color to be emitted.

[0181] In an exemplary embodiment, the orthographic projection of the first color filter 601 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the first opening area 306-1 on the plane where the substrate 101 is located. For example, the orthographic projection of the first color filter 601 on the plane where the substrate 101 is located may include the orthographic projection of the first opening area 306-1 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The orthographic projection of the second color filter 602 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the second opening area 306-2 on the plane where the substrate 101 is located. For example, the orthographic projection of the second color filter 602 on the plane where the substrate 101 is located may include the orthographic projection of the second opening area 306-2 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The orthographic projection of the third color filter 603 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the third opening area 306-3 on the plane where the substrate 101 is located. For example, the orthographic projection of the third color filter 603 on the plane where the substrate 101 is located may include the orthographic projection of the third opening area 306-3 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located. For example, the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located may include the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer.

[0182] In an exemplary embodiment, if Fig.10 As shown, the display substrate may further include a protective layer 109 (overcoating, referred to as OC), and the protective layer 109 may be located on the side of the color filter structure layer 106 away from the base substrate 101. The orthographic projection of the protective layer 109 on the plane where the base substrate 101 is located may include the orthographic projection of the color filter structure layer 106 on the plane where the base substrate 101 is located. The protective layer 109 can prevent the corrosion of water, oxygen, etc. on the color filter structure layer, etc., and can improve the reliability of the display substrate. The material of the protective layer 109 may include optically clear adhesive (OCA) and the like. For example, the thickness of the protective layer 109 may range from 2.0 microns to 5.0 microns.

[0183] In an exemplary embodiment, if Fig.10As shown, the display substrate may further include a light adjustment layer 110, and the light adjustment layer 110 may be located on a side of the protective layer 109 away from the base substrate 101. The light adjustment layer 110 may include a polarizer (POL for short), and the light adjustment layer 110 may be used to prevent glare problems from occurring on the display substrate.

[0184] Fig.11 The display spectrum curve of the display device of the embodiment of the utility model and the response spectrum curve of the night vision imaging system are shown in FIG. Fig.11 In the figure, the curve marked ① is the response spectrum curve of the night vision imaging system, and the curve marked ② is the spectrum curve displayed by the display device of the embodiment of the utility model in the night vision mode. Fig.11 As shown, in the night vision mode, the displayed spectral curve does not interfere with the response spectral curve of the night vision imaging system, and the night vision imaging system can work normally.

[0185] Fig.12 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 1 .like Fig.12 As shown, only the first sub-pixel P1 and the fourth sub-pixel P4 are schematically shown. The first sub-pixel P1 may include a first light-emitting unit 1, and the first light-emitting unit 1 may include a first light-emitting device 301 and a first color filter 601. The first light-emitting device 301 may include a first electrode 301-1, a first organic light-emitting layer 301-3 and a second electrode 301-2, and the first organic light-emitting layer 301-3 emits light under the drive of the first electrode 301-1 and the second electrode 301-2. Along the thickness direction of the display substrate, the first sub-pixel P1 has a first microcavity length H1, the first organic light-emitting layer 301-3 has a first size L1, and the first electrode 301-1 has a first thickness h1. The fourth sub-pixel P4 may include a fourth light-emitting unit 4, and the fourth light-emitting unit 4 may include a fourth light-emitting device 304 and a fourth color filter 604. The fourth light-emitting device 304 may include a seventh electrode 304-7, a fourth organic light-emitting layer 304-9 and an eighth electrode 304-8, and the fourth organic light-emitting layer 304-9 emits light when driven by the seventh electrode 304-7 and the eighth electrode 304-8. Along the thickness direction of the display substrate, the fourth subpixel P4 has a fourth microcavity length H4, the fourth organic light-emitting layer 304-9 has a fourth size L4, and the seventh electrode 304-7 has a seventh thickness h7. The first microcavity length H1 is greater than the fourth microcavity length H4, and the first size L1 is equal to the fourth size L4, and the first thickness h1 is greater than the seventh thickness h7. In the embodiment of the utility model, the anode of the light-emitting device can play a role in adjusting the microcavity length, which can simplify the preparation process of the organic light-emitting layer.

[0186] In some possible exemplary embodiments, the first thickness h1 is equal to the seventh thickness h7.

[0187] In an exemplary embodiment, the material of the seventh electrode 304-7 includes at least one metal material other than silver. For example, the material of the seventh electrode 304-7 may include ITO, and the seventh electrode 304-7 may be ITO / ITO. The material of the seventh electrode 304-7 does not include silver, which can eliminate the microcavity effect of the fourth sub-pixel, widen the half-height width of the fourth sub-pixel emission spectrum, increase the wavelength range of the fourth sub-pixel, enhance the light emitting effect of the fourth sub-pixel, and improve the night vision capability of the display device.

[0188] In an exemplary embodiment, the first electrode 301-1 and the seventh electrode 304-7 may both be multi-layer structures, and the number of layers of the first electrode 301-1 is greater than the number of layers of the seventh electrode 304-7. The multi-layer structure may be, for example, ITO / Ag / ITO or Ti / Al / Ti or Mo / Nb / Cu or MoNiTi / Cu or MoNb / Cu / MoNiTi or MoNiTi / Cu / MoNiTi, etc. For example, the first electrode 301-1 may be ITO / Ag / ITO, and the seventh electrode 304-7 may be ITO / ITO.

[0189] In an exemplary embodiment, if Fig.12 As shown, the color filter structure layer 106 may include a first color filter 601, and the orthographic projection of the first color filter 601 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the first opening area 306-1 on the plane where the substrate 101 is located. For example, the orthographic projection of the first color filter 601 on the plane where the substrate 101 is located may include the orthographic projection of the first opening area 306-1 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The first color filter 601 has a first edge 11, and the first opening area 306-1 has a second edge 12. The orthographic projection of the first edge 11 on the plane where the substrate 101 is located can surround the orthographic projection of the second edge 12 on the plane where the substrate 101 is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns, which can increase the light-emitting area of ​​the color filter structure layer and have a higher pixel density. In the embodiment of the utility model, the first opening area is also the aforementioned first light-emitting area, the second opening area is also the aforementioned second light-emitting area, the third opening area is also the aforementioned third light-emitting area, and the fourth opening area is also the aforementioned fourth light-emitting area.

[0190] In an exemplary embodiment, the orthographic projection of the edge of the second color filter on the plane where the substrate is located can surround the orthographic projection of the edge of the second opening area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns.

[0191] In an exemplary embodiment, the orthographic projection of the edge of the third color filter on the plane where the substrate is located can surround the orthographic projection of the edge of the third opening area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns.

[0192] In an exemplary embodiment, if Fig.12 As shown, the color filter structure layer 106 may include a fourth color filter 604, and the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located. For example, the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located may include the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The fourth color filter 604 has a third edge 13, and the fourth opening area 306-4 has a fourth edge 14. The orthographic projection of the third edge 13 on the plane where the substrate 101 is located can surround the orthographic projection of the fourth edge 14 on the plane where the substrate 101 is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns, which can increase the light-emitting area of ​​the color filter structure layer and have a higher pixel density.

[0193] In some possible exemplary embodiments, the display substrate may further include two protective layers, one protective layer may be located on the side of the color filter structure layer 106 away from the base substrate 101, and the other protective layer may be located between the touch structure layer 105 and the color filter structure layer 106, which may enhance the ability of the display substrate to resist water and oxygen.

[0194] Fig.13 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 2 .like Fig.13 As shown, only the first subpixel P1 and the fourth subpixel P4 are schematically shown. The first subpixel P1 may include a first light-emitting device 301. Along the thickness direction of the display substrate, the first subpixel P1 has a first microcavity length H1, the first organic light-emitting layer 301-3 has a first size L1, and the first electrode 301-1 has a first thickness h1. The fourth subpixel P4 may include a fourth light-emitting device 304. Along the thickness direction of the display substrate, the fourth subpixel P4 has a fourth microcavity length H4, the fourth organic light-emitting layer 304-9 has a fourth size L4, and the seventh electrode 304-7 has a seventh thickness h7. The first microcavity length H1 is greater than the fourth microcavity length H4, the first size L1 is equal to the fourth size L4, and the first thickness h1 is greater than the seventh thickness h7.

[0195] In some possible exemplary embodiments, the first thickness h1 is equal to the seventh thickness h7.

[0196] In an exemplary embodiment, if Fig.13 As shown, the color filter structure layer 106 may include a fourth color filter 604, and the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located. For example, the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located may include the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The fourth color filter 604 has a third edge 13, and the fourth opening area 306-4 has a fourth edge 14. The orthographic projection of the third edge 13 on the plane where the substrate 101 is located can surround the orthographic projection of the fourth edge 14 on the plane where the substrate 101 is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns, which can increase the light-emitting area of ​​the color filter structure layer and have a higher pixel density.

[0197] Fig.14 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 3 .like Fig.14 As shown, only the first subpixel P1 and the fourth subpixel P4 are schematically shown. The first subpixel P1 may include a first light-emitting device 301. Along the thickness direction of the display substrate, the first subpixel P1 has a first microcavity length H1, the first organic light-emitting layer 301-3 has a first size L1, and the first electrode 301-1 has a first thickness h1. The fourth subpixel P4 may include a fourth light-emitting device 304. Along the thickness direction of the display substrate, the fourth subpixel P4 has a fourth microcavity length H4, the fourth organic light-emitting layer 304-9 has a fourth size L4, and the seventh electrode 304-7 has a seventh thickness h7. The first microcavity length H1 is equal to the fourth microcavity length H4, the first size L1 is equal to the fourth size L4, and the first thickness h1 is equal to the seventh thickness h7.

[0198] In an exemplary embodiment, if Fig.14As shown, the color filter structure layer 106 may include a first color filter 601, and the orthographic projection of the first color filter 601 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the first opening area 306-1 on the plane where the substrate 101 is located. For example, the orthographic projection of the first color filter 601 on the plane where the substrate 101 is located may include the orthographic projection of the first opening area 306-1 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The first color filter 601 has a first edge 11, and the first opening area 306-1 has a second edge 12. The orthographic projection of the first edge 11 on the plane where the substrate 101 is located can surround the orthographic projection of the second edge 12 on the plane where the substrate 101 is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns, which can increase the light-emitting area of ​​the color filter structure layer and have a higher pixel density.

[0199] In an exemplary embodiment, if Fig.14 As shown, the color filter structure layer 106 may include a fourth color filter 604, and the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located. For example, the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located may include the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The fourth color filter 604 has a third edge 13, and the fourth opening area 306-4 has a fourth edge 14. The orthographic projection of the third edge 13 on the plane where the substrate 101 is located can surround the orthographic projection of the fourth edge 14 on the plane where the substrate 101 is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns, which can increase the light-emitting area of ​​the color filter structure layer and have a higher pixel density.

[0200] Fig.15 A partial cross-sectional structure diagram of a display device according to an embodiment of the present invention Figure 4 .like Fig.15As shown, only the first subpixel P1 and the fourth subpixel P4 are schematically shown. The first subpixel P1 may include a first light-emitting device 301. Along the thickness direction of the display substrate, the first subpixel P1 has a first microcavity length H1, the first organic light-emitting layer 301-3 has a first size L1, and the first electrode 301-1 has a first thickness h1. The fourth subpixel P4 may include a fourth light-emitting device 304. Along the thickness direction of the display substrate, the fourth subpixel P4 has a fourth microcavity length H4, the fourth organic light-emitting layer 304-9 has a fourth size L4, and the seventh electrode 304-7 has a seventh thickness h7. The first microcavity length H1 is equal to the fourth microcavity length H4, the first size L1 is equal to the fourth size L4, and the first thickness h1 is equal to the seventh thickness h7.

[0201] In an exemplary embodiment, if Fig.15 As shown, the color filter structure layer 106 may include a fourth color filter 604, and the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located is at least partially overlapped with the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located. For example, the orthographic projection of the fourth color filter 604 on the plane where the substrate 101 is located may include the orthographic projection of the fourth opening area 306-4 on the plane where the substrate 101 is located, which can increase the light-emitting area of ​​the color filter structure layer. The fourth color filter 604 has a third edge 13, and the fourth opening area 306-4 has a fourth edge 14. The orthographic projection of the third edge 13 on the plane where the substrate 101 is located can surround the orthographic projection of the fourth edge 14 on the plane where the substrate 101 is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns, which can increase the light-emitting area of ​​the color filter structure layer and have a higher pixel density.

[0202] In an exemplary embodiment, if Fig.15 As shown, the display substrate may further include a light adjustment layer 110, and the light adjustment layer 110 may be located on a side of the protective layer 109 away from the base substrate 101. The light adjustment layer 110 may include a polarizer (POL for short), and the light adjustment layer 110 may prevent the display substrate from having glare problems.

[0203] In some possible exemplary embodiments, the fourth microcavity length H4 may be equal to a non-integer multiple of the peak wavelength of the fourth color light, and the fourth microcavity may form a weak microcavity. For example, the fourth microcavity length H4 may be equal to 1.5 times the peak wavelength of the fourth color light, or the fourth microcavity length H4 may be equal to 2.2 times the peak wavelength of the fourth color light, etc. The peak wavelength of the fourth color light ranges from 525 nanometers to 585 nanometers.

[0204] Fig.16A partial cross-sectional view of a display device according to another embodiment of the present invention Figure 1 .like Fig.16 As shown, only one pixel unit is shown as an example, the pixel unit may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, and a third sub-pixel P3 emitting a third color light. The first sub-pixel P1 may include a first light-emitting unit 1, and the first light-emitting unit 1 is configured to emit a first color light. The second sub-pixel P2 may include a second light-emitting unit 2, and the second light-emitting unit 2 is configured to emit a second color light. The third sub-pixel P3 may include a third light-emitting unit 3, and the third light-emitting unit 3 is configured to emit a third color light.

[0205] In an exemplary embodiment, if Fig.16 As shown, the first light emitting device 301 may include a first electrode 301-1, a first organic light emitting layer 301-3, and a second electrode 301-2. The first electrode 301-1 may be located at the anode layer, the first organic light emitting layer 301-3 may be located at the organic light emitting layer, and the second electrode 301-2 may be located at the cathode layer. The first electrode 301-1 may be connected to the second electrode of the transistor through a first connecting electrode, the first organic light emitting layer 301-3 is connected to the first electrode 301-1, the second electrode 301-2 is connected to the first organic light emitting layer 301-3, and the second electrode 301-2 may be connected to a second power line. The first organic light emitting layer 301-3 emits light under the drive of the first electrode 301-1 and the second electrode 301-2. In an embodiment of the utility model, the second power line is configured to continuously provide a low level signal to the light emitting device. The first electrode 301-1 may be the anode of the first light emitting device 301, and the second electrode 301-2 may be the cathode of the first light emitting device 301.

[0206] In an exemplary embodiment, if Fig.16 As shown, the second light emitting device 302 may include a third electrode 302-3, a second organic light emitting layer 302-5 and a fourth electrode 302-4, the third electrode 302-3 may be located in the anode layer, the second organic light emitting layer 302-5 may be located in the organic light emitting layer, and the fourth electrode 302-4 may be located in the cathode layer. The third electrode 302-3 may be connected to the second electrode of the transistor through the second connecting electrode, the second organic light emitting layer 302-5 is connected to the third electrode 302-3, the fourth electrode 302-4 is connected to the second organic light emitting layer 302-5, the fourth electrode 302-4 may be connected to the second power line, and the second organic light emitting layer 302-5 emits light under the drive of the third electrode 302-3 and the fourth electrode 302-4. The third electrode 302-3 may be the anode of the second light emitting device 302, and the fourth electrode 302-4 may be the cathode of the second light emitting device 302.

[0207] In an exemplary embodiment, if Fig.16 As shown, the third light emitting device 303 may include a fifth electrode 303-5, a third organic light emitting layer 303-7 and a sixth electrode 303-6, the fifth electrode 303-5 may be located in the anode layer, the third organic light emitting layer 303-7 may be located in the organic light emitting layer, and the sixth electrode 303-6 may be located in the cathode layer. The fifth electrode 303-5 may be connected to the second electrode of the transistor through the third connecting electrode, the third organic light emitting layer 303-7 may be connected to the fifth electrode 303-5, the sixth electrode 303-6 may be connected to the third organic light emitting layer 303-7, the sixth electrode 303-6 may be connected to the second power line, and the third organic light emitting layer 303-7 may emit light under the driving of the fifth electrode 303-5 and the sixth electrode 303-6. The fifth electrode 303-5 may be the anode of the third light emitting device 303, and the sixth electrode 303-6 may be the cathode of the third light emitting device 303.

[0208] In an exemplary embodiment, if Fig.16 As shown, along the thickness direction of the display substrate, the first subpixel P1 has a first microcavity length H1, the first organic light-emitting layer 301-3 has a first size L1, and the first electrode 301-1 has a first thickness h1. The second subpixel P2 has a second microcavity length H2, the second organic light-emitting layer 302-5 has a second size L2, and the third electrode 302-3 has a third thickness h3. The third subpixel P3 has a third microcavity length H3, the third organic light-emitting layer 303-7 has a third size L3, and the fifth electrode 303-5 has a fifth thickness h5. The first microcavity length H1 is equal to the second microcavity length H2, and the first microcavity length H1 is equal to the third microcavity length H3, the first size L1 is equal to the second size L2, and the first size L1 is equal to the third size L3, and the first thickness h1 is equal to the third thickness h3, and the first thickness h1 is equal to the fifth thickness h5.

[0209] In an exemplary embodiment, if Fig.16 As shown, the color filter structure layer 106 may include a first color filter 601, and the orthographic projection of the first color filter 601 on the plane where the base substrate 101 is located is at least partially overlapped with the orthographic projection of the first opening area 306-1 on the plane where the base substrate 101 is located. For example, the orthographic projection of the first color filter 601 on the plane where the base substrate 101 is located may include the orthographic projection of the first opening area 306-1 on the plane where the base substrate 101 is located, which can increase the light output area of ​​the color filter structure layer. Fig.16As shown, the color filter structure layer 106 may include a second color filter 602, and the orthographic projection of the second color filter 602 on the plane where the base substrate 101 is located is at least partially overlapped with the orthographic projection of the second opening area 306-2 on the plane where the base substrate 101 is located. For example, the orthographic projection of the second color filter 602 on the plane where the base substrate 101 is located may include the orthographic projection of the second opening area 306-2 on the plane where the base substrate 101 is located, which can increase the light output area of ​​the color filter structure layer. Fig.16 As shown, the color film structure layer 106 may include a third color filter 603, and the orthographic projection of the third color filter 603 on the plane where the base substrate 101 is located is at least partially overlapped with the orthographic projection of the third opening area 306-3 on the plane where the base substrate 101 is located. For example, the orthographic projection of the third color filter 603 on the plane where the base substrate 101 is located may include the orthographic projection of the third opening area 306-3 on the plane where the base substrate 101 is located, which can increase the light output area of ​​the color film structure layer.

[0210] In an exemplary embodiment, the first color filter 601 has a first edge 11, and the first opening area 306-1 has a second edge 12. The orthographic projection of the first edge 11 on the plane where the substrate 101 is located can surround the orthographic projection of the second edge 12 on the plane where the substrate 101 is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns, which can increase the light-emitting area of ​​the color filter structure layer and have a higher pixel density. The orthographic projection of the edge of the second color filter on the plane where the substrate is located can surround the orthographic projection of the edge of the second opening area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns. The orthographic projection of the edge of the third color filter on the plane where the substrate is located can surround the orthographic projection of the edge of the third opening area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two, and the range of the gap can be greater than 0 and less than or equal to 5.0 microns.

[0211] In an exemplary embodiment, if Fig.16 As shown, the display substrate may further include a protective layer 109 (overcoating, referred to as OC), and the protective layer 109 may be located on the side of the color filter structure layer 106 away from the base substrate 101. The orthographic projection of the protective layer 109 on the plane where the base substrate 101 is located may include the orthographic projection of the color filter structure layer 106 on the plane where the base substrate 101 is located. The protective layer 109 can prevent the corrosion of water, oxygen, etc. on the color filter structure layer, etc., and can improve the reliability of the display substrate. The material of the protective layer 109 may include optically clear adhesive (OCA) and the like. For example, the thickness of the protective layer 109 may range from 2.0 microns to 5.0 microns.

[0212] In an exemplary embodiment, if Fig.16 As shown, the display substrate may further include a cutoff layer 111, and the cutoff layer 111 may be located on the side of the protective layer 109 away from the base substrate 101. The cutoff layer 111 is configured to prevent light with a wavelength of more than 630 nanometers from emitting from the display device. For example, the cutoff layer 111 may include an infrared cutoff filter. The orthographic projection of the cutoff layer 111 on the plane where the base substrate 101 is located overlaps at least partially with the orthographic projection of the first opening area 306-1 on the plane where the base substrate 101 is located. For example, the orthographic projection of the cutoff layer 111 on the plane where the base substrate 101 is located may include the orthographic projection of the first opening area 306-1 on the plane where the base substrate 101 is located. In the embodiment of the utility model, by setting the cutoff layer, the display substrate does not need to be provided with a fourth light-emitting unit, and the cutoff layer can prevent light with a wavelength of more than 630 nanometers from emitting from the display device, so that the light emitted by the display device will not interfere with the night vision device, the night vision device can work normally, and the user can use the night vision device and the display device at the same time, which can improve the compatibility of the display device and the night vision device.

[0213] In an exemplary embodiment, if Fig.16 As shown, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located at least partially overlaps with the orthographic projection of the second opening area 306-2 on the plane where the base substrate 101 is located. By way of example, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located may include the orthographic projection of the second opening area 306-2 on the plane where the base substrate 101 is located.

[0214] In an exemplary embodiment, if Fig.16 As shown, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located at least partially overlaps with the orthographic projection of the third opening area 306-3 on the plane where the base substrate 101 is located. By way of example, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located may include the orthographic projection of the third opening area 306-3 on the plane where the base substrate 101 is located.

[0215] In an exemplary embodiment, if Fig.16 As shown, the display substrate may further include a covering layer 112, and the covering layer 112 may be located on a side of the stop layer 111 away from the base substrate 101. For example, the covering layer 112 may be a cover window. The covering layer 112 may protect the screen of the display device from external influences.

[0216] Fig.17 A partial cross-sectional view of a display device according to another embodiment of the present invention Figure 2 .like Fig.17As shown, only one pixel unit is shown as an example, the pixel unit may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, and a third sub-pixel P3 emitting a third color light. The first sub-pixel P1 may include a first light-emitting unit 1, and the first light-emitting unit 1 is configured to emit a first color light. The second sub-pixel P2 may include a second light-emitting unit 2, and the second light-emitting unit 2 is configured to emit a second color light. The third sub-pixel P3 may include a third light-emitting unit 3, and the third light-emitting unit 3 is configured to emit a third color light.

[0217] In an exemplary embodiment, if Fig.17 As shown, the display device may further include a cover layer 112, a light adjustment layer 110, and a cut-off layer 111 which are stacked in sequence, and the cut-off layer 111 is closer to the base substrate 101 than the cover layer 112. The cut-off layer 111 is configured to prevent light with a wavelength of more than 630 nanometers from emitting from the display device. The orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located overlaps at least partially with the orthographic projection of the first opening area 306-1 on the plane where the base substrate 101 is located. For example, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located may include the orthographic projection of the first opening area 306-1 on the plane where the base substrate 101 is located. In an embodiment of the utility model, by setting the cut-off layer, the display substrate does not need to be provided with a fourth light-emitting unit, and the cut-off layer can prevent light with a wavelength of more than 630 nanometers from emitting from the display device, so that the light emitted by the display device will not interfere with the night vision device, the night vision device can work normally, and the user can use the night vision device and the display device at the same time, which can improve the compatibility of the display device and the night vision device.

[0218] In an exemplary embodiment, if Fig.17 As shown, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located at least partially overlaps with the orthographic projection of the second opening area 306-2 on the plane where the base substrate 101 is located. By way of example, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located may include the orthographic projection of the second opening area 306-2 on the plane where the base substrate 101 is located.

[0219] In an exemplary embodiment, if Fig.17 As shown, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located at least partially overlaps with the orthographic projection of the third opening area 306-3 on the plane where the base substrate 101 is located. By way of example, the orthographic projection of the cut-off layer 111 on the plane where the base substrate 101 is located may include the orthographic projection of the third opening area 306-3 on the plane where the base substrate 101 is located.

[0220] Fig.18 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 1 .like Fig.18 As shown, the display device may include a display substrate, the display substrate may include a plurality of pixel units P arranged in a matrix, at least one pixel unit P may include a plurality of sub-pixels, the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, and a third sub-pixel P3 emitting a third color light, and the three sub-pixels may each include a pixel driving circuit and a light-emitting unit, the pixel driving circuit in the sub-pixel is respectively connected to a scanning signal line and a data signal line, the pixel driving circuit is configured to receive a data voltage transmitted by the data signal line under the control of the scanning signal line, and output a corresponding current to the light-emitting device in the light-emitting unit. The light-emitting devices in the sub-pixels are respectively connected to the pixel driving circuits of the sub-pixels, and the light-emitting devices are configured to emit light of corresponding brightness in response to the current output by the pixel driving circuit of the sub-pixel.

[0221] like Fig.18 As shown, the first sub-pixel P1 may have a first light-emitting area 10, and light may be emitted from the display device through the first light-emitting area 10. The second sub-pixel P2 may have a second light-emitting area 20, and light may be emitted from the display device through the second light-emitting area 20. The third sub-pixel P3 may have a third light-emitting area 30, and light may be emitted from the display device through the third light-emitting area 30. The orthographic projection shape of the first light-emitting area 10 on the plane where the display substrate is located may be any one of a triangle, a rectangle, a rhombus, a trapezoid, a parallelogram, a pentagon, a hexagon or a circle, etc., and the utility model is not limited thereto.

[0222] like Fig.18 As shown, the first light emitting region 10 , the second light emitting region 20 , and the third light emitting region 30 may be arranged in sequence along the first direction X at intervals.

[0223] In an exemplary embodiment, within the same pixel unit, the minimum distance between the edges of the orthographic projections of two adjacent regions among the first light emitting region 10 , the second light emitting region 20 and the third light emitting region 30 on the plane where the display substrate is located may be 15 micrometers to 25 micrometers.

[0224] Fig.19 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 2 .like Fig.19 As shown, the first light emitting area 10 and the second light emitting area 20 can be arranged at intervals along the second direction Y, and the third light emitting area 30 can be located on one side of the extension direction of the first light emitting area 10 and the second light emitting area 20. For example, the third light emitting area 30 is located on one side of the first light emitting area 10 in the first direction X.

[0225] Fig. 20A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 3 .like Fig. 20 As shown, the display substrate may include a plurality of pixel units arranged in a matrix, at least one pixel unit may include a plurality of sub-pixels, and the plurality of sub-pixels may include at least a first sub-pixel P1 emitting a first color light, a second sub-pixel P2 emitting a second color light, and a third sub-pixel P3 emitting a third color light, the first color may be red, the second color may be green, and the third color may be blue. The first sub-pixel P1 may have a first light-emitting region 10, and light may be emitted from the display device via the first light-emitting region 10. The second sub-pixel P2 may have a second light-emitting region 20, and light may be emitted from the display device via the second light-emitting region 20. The third sub-pixel P3 may have a third light-emitting region 30, and light may be emitted from the display device via the third light-emitting region 30.

[0226] like Fig. 20 As shown, the plurality of pixel units may include a plurality of thirteenth pixel units P130, and the thirteenth pixel unit P130 may include a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3. A line connecting the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located and the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located is a first straight line L11, a line connecting the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located and the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located is a second straight line L22, a line connecting the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located and the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located is a third straight line L33, the first straight line L11, the second straight line L22, and the third straight line L33 intersect to form a triangle, and for example, the triangle may be an isosceles triangle.

[0227] like Fig. 20 As shown, the plurality of pixel units may include a plurality of fourteenth pixel units P140, and the fourteenth pixel unit P140 may include a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3. A line connecting the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located and the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located is a fourth straight line L44, a line connecting the center of the orthographic projection of the second light-emitting region 20 on the plane where the display substrate is located and the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located is a fifth straight line L55, a line connecting the center of the orthographic projection of the third light-emitting region 30 on the plane where the display substrate is located and the center of the orthographic projection of the first light-emitting region 10 on the plane where the display substrate is located is a sixth straight line L66, and the fourth straight line L44, the fifth straight line L55, and the sixth straight line L66 intersect to form a triangle, and for example, the triangle may be an isosceles triangle.

[0228] like Fig. 20 As shown, a plurality of thirteenth pixel units P130 and a plurality of fourteenth pixel units P140 may be alternately arranged in sequence along the first direction X. The first straight line L11 and the fifth straight line L55 may be parallel, the second straight line L22 and the fourth straight line L44 may be parallel, and the third straight line L33 and the sixth straight line L66 may be parallel.

[0229] Fig.21 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 4 .like Fig.21 As shown, the plurality of pixel units may include a fifteenth pixel unit P150, a sixteenth pixel unit P160, and a seventeenth pixel unit P170 arranged in sequence along the first direction X. The fifteenth pixel unit P150 shares some sub-pixels with the sixteenth pixel unit P160, and the sixteenth pixel unit P160 shares some sub-pixels with the seventeenth pixel unit P170. In the embodiment of the utility model, the shared sub-pixels are referred to as shared sub-pixels, and the shared sub-pixels may include at least one of the first sub-pixel P1 and the third sub-pixel P3. For example, as Fig.21 As shown, the fifteenth pixel unit P150 and the sixteenth pixel unit P160 share a third sub-pixel P3. The sixteenth pixel unit P160 and the seventeenth pixel unit P170 share a first sub-pixel P1. This arrangement can improve the pixel density of the display substrate and reduce the size of the display substrate.

[0230] Fig. 22 A schematic diagram of a planar structure of a display device according to another embodiment of the present invention Figure 5 .like Fig. 22 As shown, the plurality of pixel units may include at least one eighteenth pixel unit P180 and one nineteenth pixel unit P190, and the eighteenth pixel unit P180 and the nineteenth pixel unit P190 may each include one first sub-pixel P1, two second sub-pixels P2, and one third sub-pixel P3. The two second sub-pixels P2 in the same eighteenth pixel unit P180 may be arranged at intervals along the second direction Y.

[0231] like Fig. 22 As shown, a plurality of eighteenth pixel units P180 and nineteenth pixel units P190 may be arranged alternately in sequence along the second direction Y. Some sub-pixels of adjacent eighteenth pixel units P180 and nineteenth pixel units P190 are shared. In the embodiment of the utility model, the shared sub-pixels are referred to as shared sub-pixels, and the shared sub-pixels may include at least one of the first sub-pixel P1 and the third sub-pixel P3. Fig. 22As shown, the first sub-pixel P1 and the third sub-pixel P3 in the adjacent eighteenth pixel unit P180 and the nineteenth pixel unit P190 are shared, and the second sub-pixel P2 in the adjacent eighteenth pixel unit P180 and the nineteenth pixel unit P190 are respectively located on the opposite sides of the first sub-pixel P1 and the third sub-pixel P3 along the second direction Y.

[0232] An embodiment of the utility model provides a display device, which includes the display substrate described in any of the above embodiments. The display device can be any product with a display function, such as a mobile terminal, a vehicle-mounted display screen, an aircraft display screen, or a navigator.

[0233] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. It should be noted that the above embodiments or implementations are merely exemplary and not restrictive. Therefore, the present invention is not limited to the contents specifically shown and described herein. Various modifications, substitutions or omissions may be made to the forms and details of implementation without departing from the scope of the present invention.

Claims

1. A display substrate, characterized in that: The invention comprises a substrate and a plurality of pixel units located on the substrate; at least one pixel unit comprises a plurality of light-emitting units, wherein the plurality of light-emitting units at least comprises a first light-emitting unit emitting a first color light, a second light-emitting unit emitting a second color light, a third light-emitting unit emitting a third color light, and a fourth light-emitting unit emitting a fourth color light; the first light-emitting unit has a first light-emitting area, the second light-emitting unit has a second light-emitting area, the third light-emitting unit has a third light-emitting area, and the fourth light-emitting unit has a fourth light-emitting area; The first light-emitting unit, the second light-emitting unit and the third light-emitting unit are configured to emit light in a normal display mode; the second light-emitting unit, the third light-emitting unit and the fourth light-emitting unit are configured to emit light in a night vision display mode, and the first light-emitting unit is configured not to emit light in the night vision display mode, and the first color is red; The first light emitting region has a first light emitting area, the fourth light emitting region has a fourth light emitting area, and the fourth light emitting area is smaller than the first light emitting area.

2. The display substrate according to claim 1, wherein: The ratio of the first light emitting area to the fourth light emitting area ranges from 1:0.1 to 1:0.

5.

3. The display substrate according to claim 1, wherein: The arrangement of the plurality of first light-emitting areas, the plurality of second light-emitting areas, the plurality of third light-emitting areas, and the plurality of fourth light-emitting areas satisfies one of the following arrangement forms: First arrangement form: the first light-emitting area, the second light-emitting area, and the third light-emitting area are alternately arranged along the first direction, and the second light-emitting area and the fourth light-emitting area are alternately arranged along the second direction; Second arrangement form: the first light-emitting area and the third light-emitting area are alternately arranged along the first direction, the second light-emitting area and the fourth light-emitting area are alternately arranged along the first direction, and the first light-emitting area and the second light-emitting area are alternately arranged along the second direction, and the third light-emitting area and the fourth light-emitting area are alternately arranged along the second direction; A third arrangement form: the first light-emitting area, the fourth light-emitting area, the third light-emitting area and the fourth light-emitting area are arranged alternately in sequence along the first direction, and a plurality of the second light-emitting areas are arranged in sequence along the first direction; the fourth light-emitting area and the second light-emitting area are arranged alternately along the second direction, and the first light-emitting area and the third light-emitting area are arranged alternately along the second direction; Fourth arrangement form: the first light-emitting area and the third light-emitting area are arranged alternately in sequence along the first direction, and the first light-emitting area, the fourth light-emitting area and the third light-emitting area are arranged alternately in the second direction, and a plurality of the second light-emitting areas are arranged in sequence along the second direction; A fifth arrangement form: the third light-emitting area, the first light-emitting area and two second light-emitting areas are arranged alternately along the first direction, and two second light-emitting areas are arranged along the second direction, and a plurality of fourth light-emitting areas are arranged along the second direction; The plane formed by the intersection of the first direction and the second direction is parallel to the plane where the base substrate is located.

4. The display substrate according to any one of claims 1 to 3, characterized in that: In at least one pixel unit, the orthographic projections of the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area on the plane where the substrate is located do not overlap; a line connecting the center of the orthographic projection of the first light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the second light-emitting area on the plane where the substrate is located is a first line, a line connecting the center of the orthographic projection of the third light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the fourth light-emitting area on the plane where the substrate is located is a second line, and the first line is parallel to the second line.

5. The display substrate according to any one of claims 1 to 3, characterized in that: The at least one pixel unit includes at least one first pixel unit; in the first pixel unit, a line connecting the center of the orthographic projection of the first light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the second light-emitting area on the plane where the substrate is located is a first straight line, a line connecting the center of the orthographic projection of the second light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the third light-emitting area on the plane where the substrate is located is a second straight line, a line connecting the center of the orthographic projection of the third light-emitting area on the plane where the substrate is located and the center of the orthographic projection of the first light-emitting area on the plane where the substrate is located is a third straight line, and the first straight line, the second straight line and the third straight line intersect to form a triangle, and the orthographic projection of the fourth light-emitting area on the plane where the substrate is located is located within the triangle.

6. The display substrate according to claim 5, wherein: The center of the orthographic projection of the fourth light emitting area on the plane where the base substrate is located coincides with the center of the triangle.

7. The display substrate according to claim 5, wherein: The at least one pixel unit further includes at least one second pixel unit; in the second pixel unit, a line connecting the center of the orthographic projection of the first light emitting area on the plane where the substrate is located and the center of the orthographic projection of the second light emitting area on the plane where the substrate is located is a fourth straight line, a line connecting the center of the orthographic projection of the second light emitting area on the plane where the substrate is located and the center of the orthographic projection of the third light emitting area on the plane where the substrate is located is a fifth straight line, a line connecting the center of the orthographic projection of the third light emitting area on the plane where the substrate is located and the center of the orthographic projection of the first light emitting area on the plane where the substrate is located is a sixth straight line, the fourth straight line, the fifth straight line and the sixth straight line intersect to form a triangle, and the orthographic projection of the fourth light emitting area on the plane where the substrate is located is located within the triangle; The first straight line is parallel to the fifth straight line, the second straight line is parallel to the fourth straight line, and the third straight line is parallel to the sixth straight line.

8. The display substrate according to claim 7, wherein: A plurality of the first pixel units and a plurality of the second pixel units are alternately arranged in sequence along a first direction.

9. The display substrate according to any one of claims 1 to 3, characterized in that: Each of the pixel units includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, the first sub-pixel includes a first light-emitting unit, the second sub-pixel includes a second light-emitting unit, the third sub-pixel includes a third light-emitting unit, and the fourth sub-pixel includes a fourth light-emitting unit; the plurality of pixel units are arranged in sequence along a first direction; Part of the sub-pixels of two adjacent pixel units are shared.

10. The display substrate according to claim 9, wherein: The shared sub-pixel includes at least one of the first sub-pixel, the third sub-pixel, and the fourth sub-pixel.

11. The display substrate according to claim 10, wherein: The plurality of pixel units include at least a third pixel unit, a fourth pixel unit and a fifth pixel unit arranged in sequence along a first direction; the third pixel unit and the fourth pixel unit share the third sub-pixel, and the fourth pixel unit and the fifth pixel unit share the first sub-pixel.

12. The display substrate according to claim 10, wherein: The multiple pixel units include at least a sixth pixel unit, a seventh pixel unit and an eighth pixel unit arranged in sequence along the first direction; the sixth pixel unit and the seventh pixel unit share the third sub-pixel, and the seventh pixel unit and the eighth pixel unit share the first sub-pixel and the fourth sub-pixel.

13. The display substrate according to claim 9, wherein: Each of the pixel units includes one first sub-pixel, two second sub-pixels, one third sub-pixel and one fourth sub-pixel.

14. The display substrate according to claim 13, wherein: The shared sub-pixel includes at least one of the first sub-pixel, the third sub-pixel, and the fourth sub-pixel.

15. The display substrate according to any one of claims 1 to 3, characterized in that: There is a first minimum distance between the orthographic projection of the first light-emitting area on the plane where the substrate substrate is located and the orthographic projection of the fourth light-emitting area on the plane where the substrate substrate is located, there is a second minimum distance between the orthographic projection of the second light-emitting area on the plane where the substrate substrate is located and the orthographic projection of the fourth light-emitting area on the plane where the substrate substrate is located, and there is a third minimum distance between the orthographic projection of the third light-emitting area on the plane where the substrate substrate is located and the orthographic projection of the fourth light-emitting area on the plane where the substrate substrate is located; wherein at least two of the first minimum distance, the second minimum distance and the third minimum distance are equal.

16. The display substrate according to any one of claims 1 to 3, characterized in that: The at least one pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the first sub-pixel includes the first light-emitting unit and has a first microcavity length H1; the second sub-pixel includes the second light-emitting unit and has a second microcavity length H2; the third sub-pixel includes the third light-emitting unit and has a third microcavity length H3; the fourth sub-pixel includes the fourth light-emitting unit and has a fourth microcavity length H4; wherein H1 is greater than H4, H4 is greater than H2, and H2 is greater than H3.

17. The display substrate according to claim 16, wherein: The first light-emitting unit includes a first light-emitting device, and the first light-emitting device includes a first organic light-emitting layer; the second light-emitting unit includes a second light-emitting device, and the second light-emitting device includes a second organic light-emitting layer; the third light-emitting unit includes a third light-emitting device, and the third light-emitting device includes a third organic light-emitting layer; the fourth light-emitting unit includes a fourth light-emitting device, and the fourth light-emitting device includes a fourth organic light-emitting layer; along a direction perpendicular to the plane where the substrate is located, the first organic light-emitting layer has a first size L1, and the second organic light-emitting layer has a second size L2, and the third organic light-emitting layer has a third size L3, and the fourth organic light-emitting layer has a fourth size L4; wherein L1 is greater than L4, and L4 is greater than L2, and L2 is greater than L3.

18. The display substrate according to claim 16, wherein: The first light-emitting unit includes a first light-emitting device, the first light-emitting device includes a first electrode, a first organic light-emitting layer, and a second electrode stacked in sequence, and the first electrode is closer to the base substrate than the second electrode; the fourth light-emitting unit includes a fourth light-emitting device, the fourth light-emitting device includes a seventh electrode, a fourth organic light-emitting layer, and an eighth electrode stacked in sequence, and the seventh electrode is closer to the base substrate than the eighth electrode; Along a direction perpendicular to the plane where the substrate is located, the first electrode has a first thickness h1, and the seventh electrode has a seventh thickness h7, wherein h1 is greater than or equal to h7.

19. The display substrate according to claim 18, wherein: The number of layers of the seventh electrode film is less than the number of layers of the first electrode film.

20. The display substrate according to any one of claims 1 to 3, characterized in that: The fourth light-emitting unit includes a fourth light-emitting device, which includes a seventh electrode, a fourth organic light-emitting layer and an eighth electrode stacked in sequence, and the seventh electrode is closer to the base substrate than the eighth electrode; wherein the material of the seventh electrode is a metal material other than silver.

21. The display substrate according to any one of claims 1 to 3, characterized in that: The at least one pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the first sub-pixel includes the first light-emitting unit and has a first microcavity length H1; the second sub-pixel includes the second light-emitting unit and has a second microcavity length H2; the third sub-pixel includes the third light-emitting unit and has a third microcavity length H3; the fourth sub-pixel includes the fourth light-emitting unit and has a fourth microcavity length H4; wherein H1 is equal to H4, H4 is greater than H2, and H2 is greater than H3.

22. The display substrate according to claim 21, wherein: The first light-emitting unit includes a first light-emitting device, which includes a first electrode, a first organic light-emitting layer, and a second electrode stacked in sequence, and the first electrode is closer to the base substrate than the second electrode; the fourth light-emitting unit includes a fourth light-emitting device, which includes a seventh electrode, a fourth organic light-emitting layer, and an eighth electrode stacked in sequence, and the seventh electrode is closer to the base substrate than the eighth electrode; wherein the first electrode and the seventh electrode are of the same layer structure.

23. The display substrate according to any one of claims 1 to 3, characterized in that: The first light-emitting unit includes a first light-emitting device, which includes a first electrode, a first organic light-emitting layer, and a second electrode stacked in sequence; the fourth light-emitting unit includes a fourth light-emitting device, which includes a seventh electrode, a fourth organic light-emitting layer, and an eighth electrode stacked in sequence, and the first light-emitting device and the fourth light-emitting device emit light of the same color; The fourth light-emitting unit also includes a fourth color filter, which is located on a side of the fourth light-emitting device away from the substrate, the fourth color filter and the fourth light-emitting area at least partially overlap in their orthographic projection on the plane where the substrate is located, and the fourth color filter is configured to make the fourth light-emitting unit emit fourth color light.

24. The display substrate according to claim 23, wherein: The first light emitting device and the fourth light emitting device both emit red light.

25. The display substrate according to any one of claims 1 to 3, characterized in that: The at least one pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the fourth sub-pixel includes the fourth light-emitting unit and has a fourth microcavity length H4; wherein the fourth microcavity length H4 is equal to a non-integer multiple of the peak wavelength of the fourth color light; the peak wavelength range of the fourth color light is 525 nanometers to 585 nanometers.

26. The display substrate according to any one of claims 1 to 3, characterized in that: In the same pixel unit, a minimum distance between edges of the orthographic projection of two adjacent areas among the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area on the plane where the substrate is located is 15 micrometers to 25 micrometers.

27. The display substrate according to any one of claims 1 to 3, characterized in that: The first light-emitting unit includes a first color filter and a first light-emitting device, the second light-emitting unit includes a second color filter and a second light-emitting device, the third light-emitting unit includes a third color filter and a third light-emitting device, and the fourth light-emitting unit includes a fourth color filter and a fourth light-emitting device; The first color filter is located on a side of the first light-emitting device away from the base substrate, and the first color filter and the first light-emitting area at least partially overlap in an orthographic projection on a plane where the base substrate is located, and the first color filter is configured to make the first light-emitting unit emit a first color light; The second color filter is located on a side of the second light-emitting device away from the base substrate, and the second color filter and the second light-emitting area at least partially overlap in an orthographic projection on a plane where the base substrate is located, and the second color filter is configured to make the second light-emitting unit emit a second color light; The third color filter is located on a side of the third light-emitting device away from the base substrate, and the third color filter and the third light-emitting region at least partially overlap in orthographic projection on the plane where the base substrate is located, and the third color filter is configured to make the third light-emitting unit emit a third color light; The fourth color filter is located on a side of the fourth light-emitting device away from the base substrate, and the fourth color filter and the fourth light-emitting area at least partially overlap in their orthographic projection on the plane where the base substrate is located, and the fourth color filter is configured to make the fourth light-emitting unit emit fourth color light.

28. The display substrate according to claim 27, wherein: The orthographic projection of the edge of the first color filter on the plane where the substrate is located surrounds the orthographic projection of the edge of the first light-emitting area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 microns; The orthographic projection of the edge of the second color filter on the plane where the base substrate is located surrounds the orthographic projection of the edge of the second light-emitting area on the plane where the base substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 microns; The orthographic projection of the edge of the third color filter on the plane where the substrate is located surrounds the orthographic projection of the edge of the third light-emitting area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 microns; The orthographic projection of the edge of the fourth color filter on the plane where the substrate is located surrounds the orthographic projection of the edge of the fourth light-emitting area on the plane where the substrate is located, and there is a gap between the orthographic projections of the two edges, and the range of the gap is greater than 0 and less than or equal to 5.0 microns.

29. The display substrate according to any one of claims 1 to 3, characterized in that: The display substrate also includes a light extraction layer, a first encapsulation layer, a color film structure layer and a protective layer located on one side of the base substrate; the first encapsulation layer is located on the side of the light extraction layer away from the base substrate, the color film structure layer is located on the side of the first encapsulation layer away from the base substrate, the protective layer is located on the side of the color film structure layer away from the base substrate, and the thickness of the protective layer ranges from 2.0 microns to 5.0 microns.

30. The display substrate according to any one of claims 1 to 3, characterized in that: The peak wavelength range of the first color light is 615 nanometers to 625 nanometers; the peak wavelength range of the second color light is 515 nanometers to 525 nanometers; the peak wavelength range of the third color light is 455 nanometers to 465 nanometers; the peak wavelength range of the fourth color light is 525 nanometers to 585 nanometers.

31. The display substrate according to any one of claims 1 to 3, characterized in that: The orthographic projection shapes of the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area on the plane where the base substrate is located are any one of a triangle, a rectangle, a rhombus, a trapezoid, a pentagon, a hexagon or a circle.

32. The display substrate according to claim 31, wherein: The second light-emitting region has a second light-emitting area, the third light-emitting region has a third light-emitting area, the first light-emitting region, the second light-emitting region, the third light-emitting region and the fourth light-emitting region have the same orthographic projection shape on the plane where the substrate is located, and the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area are all different; or, the first light-emitting region, the second light-emitting region, the third light-emitting region and the fourth light-emitting region have different orthographic projection shapes on the plane where the substrate is located.

33. A display device, characterized in that: Comprising the display substrate as described in any one of claims 1 to 32.

Images