Display panel and display device

Abstract

The invention discloses a display panel and a display device, and relates to the technical field of display. The display panel comprises a display substrate, a first dimming layer and a second dimming layer, and the display substrate comprises a substrate and a plurality of pixel units. Wherein the refractive index of the first dimming layer is different from that of the second dimming layer, so that the effect of converging light rays emitted by the pixel units can be achieved, the light emitting amount of forward light emitting of the pixel units is improved, and the display effect of the display panel is improved. Moreover, the distance between the first boundary of the first target part which is located in the display area and the transition area and is continuous in the film layer and the hole area is large, so that the influence of the pulling force generated by the expansion of the first target part of the second dimming layer on the hole area can be reduced. Therefore, the possibility of film layer separation in the display panel can be reduced, and the yield of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] The display panel includes a base substrate and a pixel unit located in a display area of ​​the base substrate, wherein the pixel unit can emit light to realize display of the display panel.

[0003] In the related art, the display panel further includes a dimming layer located in the display area, and the dimming layer can converge the light in the edge area of ​​the pixel unit to increase the amount of forward light emitted by the pixel unit.

[0004] However, the dimming layer is prone to warping during the preparation of subsequent film layers, which may pull other film layers in the display panel, causing separation between the film layers in the display panel, resulting in a low yield of the display panel. Summary of the invention

[0005] The present application provides a display panel and a display device, which can solve the problem of low yield of display panels in related technologies. The technical solution is as follows:

[0006] In one aspect, a display panel is provided, the display panel comprising: a display substrate; the display substrate comprising:

[0007] A base substrate having a hole area, a transition area surrounding the hole area, and a display area surrounding the transition area;

[0008] and, a plurality of pixel units located on one side of the base substrate, the plurality of pixel units being located in the display area;

[0009] The display panel further includes: a first dimming layer and a second dimming layer which are located at a side of the plurality of pixel units away from the base substrate and are sequentially stacked, the refractive index of the first dimming layer is different from the refractive index of the second dimming layer, and the first dimming layer and the second dimming layer are at least located in the display area;

[0010] The second dimming layer includes a first target portion located in the display area and the transition area and having a continuous film layer, the first target portion is located in the transition area close to a first boundary of the hole area, and the distance between the first boundary and the display area is smaller than the distance between the first boundary and the hole area.

[0011] Optionally, the first dimming layer includes a second target portion located in the transition area and having a continuous film layer, the second target portion is located in the transition area close to a second boundary of the hole area, and the distance between the second boundary and the display area is smaller than the distance between the second boundary and the hole area.

[0012] Optionally, the second boundary is farther away from the display area than the first boundary, and the orthographic projection of the first boundary on the substrate is located within the orthographic projection of the second target portion on the substrate; or,

[0013] The first boundary is farther away from the display area than the second boundary, and the orthographic projection of the first target portion on the base substrate covers the orthographic projection of the second boundary on the base substrate.

[0014] Optionally, the display panel further includes: a color filter layer and a first flat film layer located between the display substrate and the first dimming layer and stacked in a direction away from the display substrate;

[0015] The color filter layer includes a plurality of color blocks located in the display area and a black matrix located in the display area, the orthographic projection of the color blocks on the substrate overlaps with the orthographic projection of the light-emitting area of ​​the pixel unit on the substrate, the light emitted by the pixel unit passes through the color blocks and then exits, and the orthographic projection of the black matrix on the substrate is located between the light-emitting areas of adjacent pixel units;

[0016] The first flat film layer includes a third target portion located in the display area and the transition area and having a continuous film layer. The third target portion is located in the transition area near a third boundary of the hole area, and the distance between the third boundary and the display area is smaller than the distance between the third boundary and the hole area.

[0017] Optionally, the second boundary is farther away from the display area than the first boundary, and the third boundary is farther away from the display area than the second boundary;

[0018] The orthographic projection of the first boundary on the substrate is located within the orthographic projection of the second target portion on the substrate, and the orthographic projection of the second boundary on the substrate is located within the orthographic projection of the third target portion on the substrate.

[0019] Optionally, the second boundary is farther away from the display area than the third boundary, and the first boundary is farther away from the display area than the second boundary;

[0020] The orthographic projection of the first target portion on the substrate covers the orthographic projection of the second boundary on the substrate, and the orthographic projection of the second target portion on the substrate covers the orthographic projection of the third boundary on the substrate.

[0021] Optionally, the second boundary is farther away from the display area than the third boundary, and the first boundary is farther away from the display area than the third boundary;

[0022] The orthographic projection of the second boundary on the substrate is located at the orthographic projection of the third target part on the substrate, and the orthographic projection of the first target part on the substrate covers the orthographic projection of the second boundary on the substrate and covers the orthographic projection of the third boundary on the substrate.

[0023] Optionally, the second dimming layer further includes a plurality of first dimming island patterns located in the transition region and evenly spaced;

[0024] The plurality of first dimming island patterns are close to the hole area relative to the first target portion, and there is a gap between any of the first dimming island patterns and the first target portion.

[0025] Optionally, the first dimming layer includes a second target portion located in the transition region and having a continuous film layer, and the second target portion is located in the transition region close to a second boundary of the hole area;

[0026] The second boundary is farther away from the display area than the plurality of first dimming island patterns, and the orthographic projections of the plurality of first dimming island patterns on the base substrate are located within the orthographic projection of the second target portion on the base substrate.

[0027] Optionally, the first dimming layer includes a second target portion located in the transition region and having a continuous film layer, the second target portion is located in the transition region close to a second boundary of the hole area; the second boundary is farther away from the display area than the first boundary, and an orthographic projection of the first boundary on the base substrate is located within an orthographic projection of the second target portion on the base substrate;

[0028] The first dimming layer also includes a plurality of second dimming island patterns located in the transition area and evenly spaced, wherein the plurality of second dimming island patterns are farther away from the display area relative to the second target portion, and there is a gap between any second dimming island pattern and the second target portion.

[0029] Optionally, the display panel further includes: a first flat film layer located between the display substrate and the first dimming layer; a material of the first dimming layer is different from a material of the first flat film layer;

[0030] A portion where the orthographic projection of the first flat film layer on the base substrate, the orthographic projection of the first target portion on the base substrate, and the orthographic projection of the second target portion on the base substrate do not overlap has a plurality of island-shaped grooves that are spaced and evenly arranged;

[0031] The first dimming layer includes a plurality of third dimming island patterns corresponding to the plurality of island-shaped grooves, and each of the third dimming island patterns is located in a corresponding one of the island-shaped grooves.

[0032] Optionally, the second dimming layer further comprises a plurality of first dimming ring patterns located in the transition region and arranged at intervals, wherein the orthographic projections of the first dimming ring patterns on the base substrate surround the hole region and are further away from the display region than the first target portion; and there is an interval between any of the first dimming ring patterns and the first target portion;

[0033] The first dimming layer further includes a plurality of second dimming ring patterns located in the transition region and spaced apart, wherein the orthographic projection of the second dimming ring pattern on the base substrate surrounds the hole region and is further away from the display region than the second target portion; and there is a space between any of the second dimming ring patterns and the second target portion;

[0034] Wherein, the plurality of first dimming ring patterns and the plurality of second dimming ring patterns are arranged alternately.

[0035] Optionally, the first dimming layer includes a plurality of strip-shaped grooves located in the transition area, and the plurality of strip-shaped grooves are evenly arranged around the hole area;

[0036] The second dimming layer includes a plurality of dimming stripe patterns corresponding to the plurality of stripe grooves, and each of the dimming stripe patterns is located in a corresponding one of the stripe grooves.

[0037] Optionally, the display substrate further includes: a first organic functional layer located on one side of the base substrate, the first organic functional layer being located in the display region and the transition region; the display substrate further includes: a first isolation column, a first blocking structure and a second isolation column being located in the transition region and sequentially arranged in a direction away from the display region;

[0038] The first organic functional layer is broken at at least one of the first isolation column and the second isolation column.

[0039] Optionally, the display substrate includes: a buffer layer, an active layer, a first gate insulating layer, a first gate layer, a second gate insulating layer, a second gate layer, an interlayer dielectric layer, a first source and drain electrode layer, a first flat layer, a second source and drain electrode layer, a second flat layer, an anode layer, a pixel defining layer, a supporting layer, a light-emitting film layer, a cathode layer and an encapsulation film layer, which are sequentially stacked in a direction away from the base substrate;

[0040] The light-emitting film layer includes the first organic functional layer, the second organic functional layer and a light-emitting pattern, the first organic functional layer includes at least a hole transport layer and an electron transport layer, and the second organic functional layer includes at least a hole injection layer and an electron injection layer;

[0041] The encapsulation film layer includes a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer stacked in sequence, the first inorganic encapsulation layer and the second inorganic encapsulation layer are located in the display area, the peripheral area and the transition area, and the organic encapsulation layer is located on a side of the first blocking structure close to the display area.

[0042] Optionally, both the first isolation column and the second isolation column include at least a target film layer;

[0043] The target film layer is located in the first source and drain electrode layer, and the orthographic projection of the target film layer on the reference plane is in an I-shape, and the reference plane is perpendicular to the supporting surface of the substrate.

[0044] Optionally, the display substrate includes a plurality of second isolation columns;

[0045] A distance between an orthographic projection of the first boundary on the base substrate and an orthographic projection of a center line of a second isolation column closest to the display area among the plurality of second isolation columns on the base substrate is greater than or equal to 100 micrometers.

[0046] Optionally, the display panel further includes: a touch substrate and a second flat film layer located between the display substrate and the first dimming layer and stacked in a direction away from the display substrate;

[0047] The touch control substrate comprises a first touch control electrode layer, a touch control insulating layer and a second touch control electrode layer stacked in sequence;

[0048] One of the first touch electrode layer and the second touch electrode layer includes a bridge electrode of multiple first touch electrodes, the other of the first touch electrode layer and the second touch electrode layer includes a main electrode of the multiple first touch electrodes and a multiple second touch electrodes, and the bridge electrode and the main electrode are electrically connected through vias in the touch insulation layer.

[0049] Optionally, the second flat film layer includes a fourth target portion located in the display area and the transition area and the film layer is continuous, the fourth target portion is located in the transition area near the fourth boundary of the hole area, and the distance between the fourth boundary and the display area is smaller than the distance between the fourth boundary and the hole area.

[0050] On the other hand, a display device is provided, the display device comprising: a power supply component and the display panel as described in the above aspect;

[0051] Wherein, the power supply component is used to supply power to the display panel.

[0052] The beneficial effects of the technical solution provided by this application include at least:

[0053] The present application provides a display panel and a display device, wherein the display panel includes a display substrate, a first dimming layer and a second dimming layer, and the display substrate includes a base substrate and a plurality of pixel units. The refractive index of the first dimming layer is different from the refractive index of the second dimming layer, thereby achieving the effect of converging the light emitted by the pixel unit, so as to increase the amount of forward light emitted by the pixel unit and improve the display effect of the display panel. In addition, since the distance between the first boundary of the first target part of the second dimming layer, which is located in the display area and the transition area and has a continuous film layer, and the hole area is large, the pulling force generated by the expansion of the first target part of the second dimming layer on the hole area can be reduced. In this way, the possibility of film layer separation in the display panel can be reduced, and the yield of the display panel can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0056] Figure 2 is a top view of a substrate provided in an embodiment of the present application;

[0057] Figure 3 This is a schematic diagram of a structure in which a display panel provided in an embodiment of the present application is located in a display area;

[0058] Figure 4 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0059] Figure 5 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0060] Figure 6 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0061] Figure 7 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0062] Figure 8 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0063] Fig. 9 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0064] Fig.10 is a top view of a display panel provided by an embodiment of the present application located in a transition area;

[0065] Fig.11 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0066] Fig.12 is a top view of another display panel provided by an embodiment of the present application, which is located in a transition area;

[0067] Fig.13 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0068] Fig.14 is a top view of a local structure of a display panel located in a transition area provided by an embodiment of the present application;

[0069] Fig.15 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0070] Fig.16 is a top view of another display panel located in a transition area provided by an embodiment of the present application;

[0071] Fig.17 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0072] Fig.18 It is a schematic diagram of the partial structure of a target film layer and a first organic functional layer provided in an embodiment of the present application;

[0073] Fig.19 is a partial schematic diagram of a touch control substrate provided in an embodiment of the present application;

[0074] Fig. 20It is a structural schematic diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0075] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0076] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application. Figure 1 The display panel 10 includes: a display substrate 101 , a first dimming layer 102 and a second dimming layer 103 . The display substrate 101 includes: a base substrate 1011 and a plurality of pixel units 1012 .

[0077] Figure 2 1 is a top view of a substrate provided in an embodiment of the present application. Figure 1 and Figure 2 The base substrate 1011 has a hole area 1011a, a transition area 1011b surrounding the hole area 1011a, and a display area 1011c surrounding the transition area 1011b.

[0078] Figure 3 1 is a schematic diagram of a structure in which a display panel is located in a display area provided in an embodiment of the present application. Figures 1 to 3 , multiple pixel units 1012 are located on one side of the base substrate 1011 and in the display area 1011c. Multiple pixel units 1012 can be used to emit light, thereby realizing the display function of the display panel 10. The first dimming layer 102 and the second dimming layer 103 are located on the side of the multiple pixel units 1012 away from the base substrate 1011 and are stacked in sequence in a direction away from the base substrate 1011. The first dimming layer 102 and the second dimming layer 103 are at least located in the display area 1011c. In addition, the first dimming layer 102 and the second dimming layer 103 located in the display area 1011c can be used to dim the light emitted by the pixel unit 1012 to increase the light output of the pixel unit 1012, increase the luminous brightness of the display panel 10, and improve the display effect. Optionally, the materials of the first dimming layer 102 and the second dimming layer 103 can both be optical adhesive (OC).

[0079] Optionally, the refractive index of the first dimming layer 102 is different from the refractive index of the second dimming layer 103. In the display area 1011c, when the light in the edge area of ​​the pixel unit 1012 is irradiated to the interface between the first dimming layer 102 and the second dimming layer 103, the light can be refracted, and the refraction direction is closer to the target direction (the target direction is perpendicular to the bearing surface of the base substrate 1011) relative to the incident direction. That is, the first dimming layer 102 and the second dimming layer 103 can converge the light in the edge area of ​​the pixel unit 1012 to increase the light output of the forward light output of the pixel unit 1012.

[0080] During the entire preparation process of the display panel 10, after the second dimming layer 103 is prepared, in the subsequent preparation process of other film layers, the entire structure may need to be treated in a high temperature or high humidity environment. High temperature may refer to above 85°C (degrees Celsius), and high humidity may refer to above 85%. Furthermore, due to the particularity of the material of the second dimming layer 103, the second dimming layer 103 is prone to physical property changes (such as expansion and generation of pulling force) in a high temperature or high humidity environment, which may cause the display panel to warp. Optionally, the material of the second dimming layer 103 can be zirconium oxide particles with microparticles added to an organic resin.

[0081] Normally, the pulling force generated by the second dimming layer 103 easily causes the film layer in the display panel 10 to separate (peeling). Moreover, if the film layer separates, it is more likely to cause water vapor or oxygen to invade the display area 1011c along the surface of the separated film layer, resulting in the appearance of hole black spots (black spots at the edge of the hole, GDSH) in the display area 1011c of the display panel, resulting in poor display effects, and in severe cases, the product may be scrapped. Furthermore, when the physical properties of the second dimming layer 103 change, the portion of the film layer in the display substrate 101 located in the transition area 1011b close to the hole area 1011a is more likely to separate (peeling), and the side wall of the hole area 1011a is exposed, so it is easier for water vapor and oxygen to invade the display area 1011c from the side wall of the hole area 1011a through the transition area 1011b. Therefore, in order to ensure the display effect of the display panel, the portion of the second dimming layer 103 located in the transition area 1011b needs to be specially designed to prevent the display panel from warping, thereby preventing the film layer from separating and causing water vapor and oxygen intrusion.

[0082] In the embodiment of the present application, the second dimming layer 103 includes a first target portion 1031 located in the display area 1011c and the transition area 1011b and having a continuous film layer. The first boundary 1031a of the first target portion 1031 close to the hole area 1011a is located in the transition area 1011b, and the distance between the first boundary 1031a and the display area 1011c is smaller than the distance between the first boundary 1031a and the hole area 1011a. That is, the first boundary 1031a of the first target portion 1031 with a continuous film layer in the second dimming layer 103 is closer to the display area 1011c than the hole area 1011a, the distance between the first target portion 1031 and the hole area 1011a can be far, and the first target portion 1031 expands and the pulling force generated has a smaller influence on the hole area 1011a.

[0083] Therefore, in the subsequent high temperature or high humidity process of forming the display panel 10, even if the second dimming layer 103 expands and generates a pulling force, it will not have much impact on the hole area 1011a, thereby reducing the possibility of film layer separation in the display panel 10 and improving the yield of the display panel 10.

[0084] In summary, an embodiment of the present application provides a display panel, which includes a display substrate, a first dimming layer and a second dimming layer, and the display substrate includes a base substrate and a plurality of pixel units. The refractive index of the first dimming layer is different from the refractive index of the second dimming layer, thereby achieving the effect of converging the light emitted by the pixel unit, so as to increase the amount of light emitted in the forward direction of the pixel unit and improve the display effect of the display panel. In addition, since the distance between the first boundary of the first target part of the second dimming layer, which is located in the display area and the transition area and has a continuous film layer, and the hole area is large, the pulling force generated by the expansion of the first target part of the second dimming layer on the hole area can be reduced. In this way, the possibility of separation of the film layer in the display panel can be reduced, and the yield of the display panel can be improved.

[0085] refer to Figure 4 The first dimming layer 102 includes a second target portion 1021 located in the transition region 1011b and having a continuous film layer. The second target portion 1021 has a second boundary 1021a close to the hole region 1011a located in the transition region 1011b, and the distance between the second boundary 1021a and the display region 1011c is smaller than the distance between the second boundary 1021a and the hole region 1011a.

[0086] Since the first dimming layer 102 is located between the second dimming layer 103 and the display substrate 101, the first dimming layer 102 can be used as an intermediate transmission layer for the pulling force generated by the second dimming layer 103, and the first dimming layer 102 can transmit the pulling force generated by the second dimming layer 103 to the display substrate 101. Therefore, the distance between the second boundary 1021a of the second target portion 1021 of the first dimming layer 102 and the hole area 1011a is designed to be relatively large, which can reduce the transmission effect of the first dimming layer 102 as an intermediate transmission layer for transmitting the pulling force, further reduce the possibility of film separation, and improve the yield of the display panel 10.

[0087] refer to Figure 4 , the second boundary 1021a is farther away from the display area 1011c than the first boundary 1031a, and the orthographic projection of the first boundary 1031a on the base substrate 1011 is located within the orthographic projection of the second target portion 1021 on the base substrate 1011. Alternatively, referring to Figure 5 , the first boundary 1031 a is farther away from the display area 1011 c than the second boundary 1021 a , and the orthographic projection of the first target portion 1031 on the base substrate 1011 covers the orthographic projection of the second boundary 1021 a on the base substrate 1011 .

[0088] Optional, for Figure 4 and Figure 5 For example, the distance h1 between the first boundary 1031a and the second boundary 1021a may be greater than or equal to 10 μm (micrometers). Figure 4 In the embodiment, the first target portion 1031 is retracted at least 10 μm inwardly relative to the second target portion 1021 in a direction away from the hole region 1011 a. Figure 5 In the embodiment, the first target portion 1031 is at least wrapped by 10 μm relative to the second target portion 1021 in a direction close to the hole region 1011 a.

[0089] refer to Figure 3 The display panel 10 further includes: a color filter layer 104 and a first planar film layer 105 which are located between the display substrate 101 and the first dimming layer 102 and are stacked in a direction away from the display substrate 101 .

[0090] The color filter layer 104 includes a plurality of color blocks 1041 located in the display area 1011c and a black matrix 1042 located in the display area 1011c. The orthographic projection of the color blocks 1041 on the base substrate 1011 overlaps with the light-emitting area of ​​the pixel unit 1012, and the light emitted by the pixel unit 1012 is emitted after passing through the color blocks 1041. The orthographic projection of the black matrix 1042 on the base substrate 1011 is located between the light-emitting areas of adjacent pixel units 1012.

[0091] Optionally, the black matrix 1042 has a plurality of openings, each opening is used to expose a corresponding color resist block 1041, and the orthographic projection of each color resist block 1041 on the base substrate 1011 covers the light emitting area of ​​a corresponding pixel unit 1012. The light emitted by the pixel unit 1012 can pass through the corresponding color resist block 1041 and then be emitted.

[0092] refer to Figure 6 The first flat film layer 105 includes a third target portion 1051 located in the display area 1011c and the transition area 1011b and having a continuous film layer. The third target portion 1051 has a third boundary 1051a close to the hole area 1011a located in the transition area 1011b, and the distance between the third boundary 1051a and the display area 1011c is smaller than the distance between the third boundary 1051a and the hole area 1011a.

[0093] Since the first flat film layer 105 is located between the second dimming layer 103 and the display substrate 101, the first flat film layer 105 can also serve as an intermediate transmission layer for the pulling force generated by the second dimming layer 103, and the first flat film layer 105 can transmit the pulling force generated by the second dimming layer 103 to the display substrate 101. Therefore, the distance between the third boundary 1051a of the third target portion 1051 of the first flat film layer 105 and the hole area 1011a is designed to be relatively large, which can reduce the transmission effect of the first flat film layer 105 as an intermediate transmission layer for transmitting the pulling force, further reduce the possibility of film layer separation, and improve the yield of the display panel.

[0094] refer to Figure 6 , the second boundary 1021a is farther away from the display area 1011c than the first boundary 1031a, and the third boundary 1051a is farther away from the display area 1011c than the second boundary 1021a. The orthographic projection of the first boundary 1031a on the substrate 1011 is located within the orthographic projection of the second target portion 1021 on the substrate 1011, and the orthographic projection of the second boundary 1021a on the substrate 1011 is located within the orthographic projection of the third target portion 1051 on the substrate 1011.

[0095] That is, the third target portion 1051, the second target portion 1021 and the first target portion 1031 are sequentially designed to shrink inward in a direction away from the hole area 1011a. Optionally, the distance h2 between the first boundary 1031a and the second boundary 1021a is greater than or equal to 10μm, and the distance between the second boundary 1021a and the third boundary 1051a is greater than or equal to 10μm. Figure 6In the embodiment, the first target portion 1031 is retracted at least 10 μm inwardly relative to the second target portion 1021 in a direction away from the hole region 1011 a , and the second target portion 1021 is retracted at least 10 μm inwardly relative to the third target portion 1051 in a direction away from the hole region 1011 a .

[0096] refer to Figure 7 , the second boundary 1021a is farther away from the display area 1011c than the third boundary 1051a, and the first boundary 1031a is farther away from the display area 1011c than the second boundary 1021a. The orthographic projection of the first target portion 1031 on the base substrate 1011 covers the orthographic projection of the second boundary 1021a on the base substrate 1011, and the orthographic projection of the second target portion 1021 on the base substrate 1011 covers the orthographic projection of the third boundary 1051a on the base substrate 1011.

[0097] That is, the first target portion 1031, the second target portion 1021 and the third target portion 1051 are sequentially wrapped in a direction close to the hole area 1011a. Optionally, the distance h2 between the first boundary 1031a and the second boundary 1021a is greater than or equal to 10 μm, and the distance between the second boundary 1021a and the third boundary 1051a is greater than or equal to 10 μm. Figure 7 In the embodiment, the first target portion 1031 covers at least 10 μm in the direction close to the hole area 1011 a relative to the second target portion 1021, and the second target portion 1021 covers at least 10 μm in the direction close to the hole area 1011 a relative to the third target portion 1051.

[0098] refer to Figure 8 , the second boundary 1021a is farther away from the display area 1011c than the third boundary 1051a, and the first boundary 1031a is farther away from the display area 1011c than the third boundary 1051a. The orthographic projection of the second boundary 1021a on the base substrate 1011 is located at the orthographic projection of the third target portion 1051 on the base substrate 1011, and the orthographic projection of the first target portion 1031 on the base substrate 1011 covers the orthographic projection of the second boundary 1021a on the base substrate 1011, and covers the orthographic projection of the third boundary 1051a on the base substrate 1011.

[0099] That is, the second target portion 1021 is designed to be retracted inward relative to the third target portion 1051 in a direction away from the hole area 1011a, and the first target portion 1031 is designed to be wrapped in a direction close to the hole area 1011a relative to the second target portion 1021 and the third target portion 1051. Optionally, the distance h2 between the second boundary 1021a and the third boundary 1051a is greater than or equal to 10μm, and the distance h1 between the first boundary 1031a and the third boundary 1051a is greater than or equal to 10μm. Figure 8 In the embodiment, the second target portion 1021 is retracted by at least 10 μm relative to the third target portion 1051 in a direction away from the hole area 1011 a, and the first target portion 1031 is wrapped by at least 10 μm relative to the third target portion 1051 in a direction close to the hole area 1011 a.

[0100] In the embodiments of the present application, the above-mentioned Figure 1 ,as well as Figures 4 to 8 In the embodiment, since the distances between the first boundary 1031a of the first target portion 1031, the second boundary 1021a of the second target portion 1021, and the third boundary 1051a of the third target portion 1051 and the hole area 1011a are large (the hollowed-out area is large), the surface flatness of the second dimming layer 103 disposed in the display panel 10 may be poor. When the glass substrate is subsequently attached to the side of the second dimming layer 103 away from the base substrate 1011 by using glue, more glue is needed to fill the surface, and the flexibility is poor.

[0101] Based on the above reasons, as the first optional implementation method, refer to Fig. 9 The second dimming layer 103 further includes a plurality of first dimming island patterns 1032 located in the transition region 1011b and evenly spaced. The plurality of first dimming island patterns 1032 are close to the hole region 1011a relative to the first target portion 1031, and there is a gap between any first dimming island pattern 1032 and the first target portion 1031. By designing the first dimming island patterns 1032, the flatness of the display panel 10 can be improved, and thus less adhesive can be used to fill the surface, and the flexibility is better.

[0102] Furthermore, since there is a gap between any first dimming island pattern 1032 and the first target portion 1031, the pulling force generated by the expansion of the first target portion 1031 will not be transmitted to the hole area 1011a by the first dimming island pattern 1032. At the same time, the first dimming island pattern 1032 is relatively small in size relative to the entire film layer, so the pulling force generated by the expansion of the first dimming island pattern 1032 is small, and the small pulling force has little effect on the hole area 1011a, and is unlikely to cause the film layer in the display panel 10 to separate.

[0103] Furthermore, since the pulling force generated by the first dimming island pattern 1032 is relatively small, even if a first dimming layer 102 (intermediate transfer layer) is designed under the first dimming island pattern 1032 , it will not have much impact on the hole area 1011 a and can improve the surface flatness.

[0104] Therefore, reference Fig. 9 and Fig.10 , the first dimming layer 102 includes a second target portion 1021 located in the transition region 1011b and having a continuous film layer, and a second boundary 1021a of the second target portion 1021 close to the hole region 1011a is located in the transition region 1011b. The second boundary 1021a of the second target portion 1021 included in the first dimming layer 102 is farther away from the display region 1011c than the plurality of first dimming island patterns 1032. The orthographic projections of the plurality of first dimming island patterns 1032 on the base substrate 1011 are located within the orthographic projections of the second target portion 1021 on the base substrate 1011.

[0105] Optional, reference Fig.10 The shape of the orthographic projection of the first dimming island pattern 1032 on the base substrate 1011 may be a square. The shape of the orthographic projection of the first dimming island pattern 1032 on the base substrate 1011 may also be other shapes, such as a triangle, a circle, and a hexagon. The embodiment of the present application does not limit the shape of the first dimming island pattern 1032.

[0106] In the embodiment of the present application, as a second optional implementation method, refer to Fig.11 and Fig.12 , the first dimming layer 102 includes a second target portion 1021 located in the transition region 1011b and having a continuous film layer. A second boundary 1021a of the second target portion 1021 close to the hole region 1011a is located in the transition region 1011b, the second boundary 1021a is farther away from the display region 1011c than the first boundary 1031a, and the orthographic projection of the first boundary 1031a on the base substrate 1011 is located within the orthographic projection of the second target portion 1021 on the base substrate 1011.

[0107] In addition, the first dimming layer 102 further includes a plurality of second dimming island patterns 1022 located in the transition region 1011b and evenly spaced, and the plurality of second dimming island patterns 1022 are further away from the display region 1011c than the second target portion 1021. Thus, the effect of the first dimming layer 102 as an intermediate transmission layer in transmitting the pulling force can be reduced while improving the flatness. At the same time, there is a gap between any second dimming island pattern 1022 and the second target portion 1021, that is, there is no direct contact between the first target portion 1031 of the second dimming layer 103 and any second dimming island pattern 1022, which can prevent the pulling force generated by the expansion of the first target portion 1031 of the second dimming layer 103 from being transmitted through the second dimming island pattern 1022.

[0108] Optional, reference Fig.12 The shape of the orthographic projection of the second dimming island pattern 1022 on the base substrate 1011 may be a square. The shape of the orthographic projection of the second dimming island pattern 1022 on the base substrate 1011 may also be other shapes, such as a triangle, a circle, and a hexagon. The embodiment of the present application does not limit the shape of the second dimming island pattern 1022.

[0109] As a third optional implementation, when the material of the first dimming layer 102 is different from the material of the first flat film layer 105, refer to Fig.13 and Fig.14 , the part where the orthographic projection of the first flat film layer 105 on the base substrate 1011, the orthographic projection of the first target portion 1031 on the base substrate 1011, and the orthographic projection of the second target portion 1021 on the base substrate 1011 do not overlap has a plurality of island-shaped grooves 105a that are spaced and evenly arranged. The first dimming layer 102 includes a plurality of third dimming island patterns (not shown in the figure) corresponding to the plurality of island-shaped grooves 105a, and each third dimming island pattern is located in a corresponding island-shaped groove 105a. As a result, the pulling force generated by the expansion of the first target portion 1031 of the second dimming layer 103 can only be continuously changed and transmitted between different materials, which can weaken the transmission effect of the pulling force and reduce the possibility of film layer separation.

[0110] As a fourth optional implementation, refer to Fig.15 and Fig.16, the second dimming layer 103 also includes a plurality of first dimming ring patterns 1033 located in the transition area 1011b and arranged at intervals. The orthographic projection of the first dimming ring pattern 1033 on the base substrate 1011 surrounds the hole area 1011a and is further away from the display area 1011c relative to the first target portion 1031. There is a gap between any first dimming ring pattern 1033 and the first target portion 1031. This can prevent the pulling force generated by the expansion of the first target portion 1031 from being transmitted along the first dimming ring pattern 1033. In addition, the width of the first dimming ring pattern 1033 is small (the width ranges from 3μm to 20μm), so the pulling force generated by the expansion of the first dimming ring pattern 1033 is small, and the impact on the hole area 1011a is also small.

[0111] In addition, the first dimming layer 102 also includes a plurality of second dimming ring patterns 1024 located in the transition region 1011b and arranged at intervals. The orthographic projection of the second dimming ring pattern 1024 on the base substrate 1011 surrounds the hole region 1011a and is further away from the display region 1011c relative to the second target portion 1021. There is a gap between any second dimming ring pattern 1024 and the second target portion 1021. Thus, the pulling force generated by the expansion of the first target portion 1031 can be prevented from being transmitted along the second target portion 1021 and the second dimming ring pattern 1024. In addition, the width of the second dimming ring pattern 1024 is relatively small (the width ranges from 3 μm to 20 μm), so it cannot be used as an intermediate transfer layer to transmit the pulling force, thereby avoiding too much influence on the hole region 1011a.

[0112] In addition, the plurality of first dimming ring patterns 1033 and the plurality of second dimming ring patterns 1024 are arranged alternately, so that the first dimming ring patterns 1033 and the second dimming ring patterns 1024 made of different materials can be distributed discontinuously, thereby blocking the downward transmission of the pulling force and reducing the transmission effect of the pulling force.

[0113] As a fifth optional implementation, refer to Fig.17 The first dimming layer 102 includes a plurality of strip grooves located in the transition area 1011b. The plurality of strip grooves are evenly arranged (such as ray-shaped distribution) around the hole area 1011a. The second dimming layer 103 includes a plurality of dimming strip patterns 1034 corresponding to the plurality of strip grooves, and each dimming strip pattern 1034 is located in a corresponding strip groove.

[0114] refer to Fig.17 16 strip grooves are shown, but in fact, there is no specific limit on the number of strip grooves, as long as the requirements of the manufacturing process can be met. Optionally, the distance between adjacent strip grooves close to one end of the hole area 1011a can be greater than or equal to 3 μm.

[0115] It should be noted that the portion of the first dimming layer 102 located near the hole area 1011a of the first target portion 1031 may also be in other shapes or arrangements, as long as the portion of the first dimming layer 102 located near the hole area 1011a of the first target portion 1031 is patterned and spaced from the first target portion 1031. Furthermore, the portion of the second dimming layer 103 located near the hole area 1011a of the second target portion 1021 may also be in other shapes or arrangements, as long as the portion of the second dimming layer 103 located near the hole area 1011a of the second target portion 1021 is patterned and spaced from the second target portion 1021.

[0116] In the embodiments of the present application, Figure 1 , Figures 3 to 17 The display substrate 101 further includes: a first organic functional layer M located on one side of the base substrate 1011, and the first organic functional layer M is located in the display region 1011c and the transition region 1011b. The display substrate 101 further includes: a first isolation column 106, a first blocking structure 107, and a second isolation column 108 located in the transition region 1011b and arranged in sequence in a direction away from the display region 1011c. The first organic functional layer M is broken at at least one of the first isolation column 106 and the second isolation column 108.

[0117] It should be noted that water vapor and oxygen will be transmitted to the display area 1011c along the first organic functional layer M. Since the first organic functional layer M is broken at at least one isolation column, even if water vapor and oxygen enter the first organic functional layer M from the side of the display panel located in the hole area 1011a, the water vapor and oxygen can be blocked outside the at least one isolation column and will not enter the display area 1011c along the first organic functional layer M. Further, the first organic functional layer M can be broken at both the first isolation column 106 and the second isolation column 108, so that water vapor and oxygen can be further prevented from entering the display area 1011c. In this way, the pixel unit 1012 of the display substrate 101 located in the display area 1011c can be prevented from being corroded by water vapor and oxygen, and the display effect can be guaranteed.

[0118] In the embodiment of the present application, the material of the first organic functional layer M may be an organic material, and the organic material easily absorbs water and oxygen, so water vapor and oxygen may enter the display substrate 101 from the first organic functional layer M located on the side of the display substrate 101 in the hole area 1011a. By breaking the first organic functional layer M at at least one of the first isolation column 106 and the second isolation column 108, water vapor and oxygen may be prevented from entering the display area 1011c along the first organic functional layer M.

[0119] Optionally, the first isolation column 106 and the second isolation column 108 may both be ring-shaped structures surrounding the hole area 1011a. The display substrate 101 may include a plurality of first isolation columns 106 and a plurality of second isolation columns 108. For example, Figure 1 In the embodiment, the display substrate 101 may include two first spacer columns 106 and four second spacer columns 108 .

[0120] Further, the distance between the first boundary 1031a and the hole region 1011a can be measured by the distance h3 between the orthographic projection of the first boundary 1031a on the base substrate 1011 and the orthographic projection of the center line of a second isolation column 108 closest to the display area 1011c among the plurality of second isolation columns 108 on the base substrate 1011. For example, the distance h3 can be greater than or equal to 100 μm, so that the distance between the first target portion 1031 of the second dimming layer 103 and the hole region 1011a is relatively far, thereby reducing the influence of the pulling force generated by the expansion of the first target portion 1031 on the hole region 1011a.

[0121] In addition, Fig. 9 In the illustrated embodiment, a distance h4 between an orthographic projection of a second boundary 1021a of the second target portion 1021 on the base substrate 1011 and an orthographic projection of a center line of a second isolation column 108 closest to the display area 1011c among the plurality of second isolation columns 108 on the base substrate 1011 may be greater than or equal to 50 μm.

[0122] In the examples of this application, refer to Figure 2 The base substrate 1011 also has a peripheral region 1011d surrounding the display region 1011c. The display substrate 101 also includes: a second blocking structure (not shown in the figure) located in the peripheral region 1011d. The second blocking structure can be used to block the overflow of the organic material located in the display region 1011c.

[0123] In the examples of this application, refer to Figure 3The display substrate 101 includes: a buffer layer (buffer) n1, an active layer n2, a first gate insulating layer (GI) n3, a first gate layer n4, a second gate insulating layer n5, a second gate layer n6, an inter-level dielectric layer (ILD) n7, a first source and drain layer n8, a first planarization layer (PLN) n9, a second source and drain layer n10, a second planarization layer n11, an anode layer (anode) n12, a pixel definition layer (PDL) n13, a support layer (PS) n14, a light-emitting film layer n15, a cathode layer (cathode) n16 and an encapsulation film layer n17 stacked in sequence along a direction away from the base substrate 10111011.

[0124] Among them, the first gate layer n4, the second gate layer n6, the first source and drain layer n8, the first planar layer n9, the second source and drain layer n10 and the second planar layer n11 are located in the display area 1011c, and the first gate insulating layer n3, the second gate insulating layer n5 and the interlayer dielectric layer n7 are located in the transition area 1011b and the display area 1011c.

[0125] In the embodiment of the present application, the first isolation column 106 and the second isolation column 108 both include a target film layer W. The target film layer W is located on the first source-drain electrode layer n8, and the orthographic projection of the target film layer W on the reference plane is in the shape of an I. By setting the target film layer W in the first isolation column 106 and the second isolation column 108 in the shape of an I, it is convenient to break the first organic functional layer M at the first isolation column 106 and the second isolation column 108, thereby preventing water vapor and oxygen from entering the display area 1011c.

[0126] Optional, reference Fig.18 The target film layer W includes a first metal layer W1, a second metal layer W2 and a third metal layer W3 which are sequentially stacked in a direction away from the base substrate 1011. The etching rate of the second metal layer W2 is greater than the etching rate of the first metal layer W1, and greater than the etching rate of the third metal layer W3.

[0127] In the embodiment of the present application, since the etching rate of the second metal layer W2 is relatively high, while the etching rates of the first metal layer W1 and the third metal layer W3 are relatively low, the target film layer W can be made into an I-shape based on the difference in etching rates of the various metal layers.

[0128] For example, assuming that the target film layer W and the first source and drain layer n8 are located in the same layer, since the first source and drain layer n8 is usually composed of three stacked metal layers of titanium (Ti), aluminum (Al) and titanium, the materials of the first metal layer W1 and the third metal layer W3 in the target film layer W can both be titanium, and the material of the second metal layer W2 can be aluminum.

[0129] In an embodiment of the present application, the first isolation column 106 and the second isolation column 108 may include other film layers in addition to the target film layer W. For example, the first isolation column 106 and the second isolation column 108 both include a gate pattern located on the same layer as the first gate layer n4, and a gate pattern located on the same layer as the second gate layer n6.

[0130] In the embodiment of the present application, the film layers contained in each isolation column included in the display substrate 101 may be different. Of course, the film layers contained in each isolation column included in the display substrate 101 may also be the same. The embodiment of the present application does not limit this. Regardless of the film layers contained in each isolation column in the display substrate 101, it is only necessary to ensure that the first organic functional layer M is broken at at least one isolation column in the display substrate 101.

[0131] In the embodiment of the present application, each pixel unit 1012 located in the display area 1011c of the display substrate 101 may include a pixel circuit and a light emitting unit. The pixel circuit may include a storage capacitor and at least one thin film transistor.

[0132] Optionally, the active layer n2 may include a plurality of active patterns. The first gate layer n4 may include a plurality of first gate patterns. The second gate layer n6 may include a plurality of second gate patterns. The first source-drain layer n8 may include a plurality of sources and a plurality of drains corresponding to the plurality of sources one by one. The second source-drain layer n10 may include a plurality of connection patterns.

[0133] An active pattern, a first gate pattern, a source and a drain can constitute a thin film transistor, and the source and the corresponding drain of each thin film transistor can be connected to the active pattern. A first gate pattern and a second gate pattern can constitute a storage capacitor.

[0134] refer to Figure 3The display substrate 101 includes an anode layer n12, a light-emitting film layer n15 and a cathode layer n16, which can constitute a light-emitting unit of a plurality of pixel units 1012. The anode layer n12 may include a plurality of anode patterns. The light-emitting film layer n15 may include a first organic functional layer M, a second organic functional layer and a light-emitting pattern (only the light-emitting pattern is shown in the figure to represent the light-emitting film layer n15). The anode layer n12, the second organic functional layer and the light-emitting pattern are all located in the display area 1011c, and the cathode layer n16 is located in the transition area 1011b and the display area 1011c.

[0135] The anode layer n12, the second organic functional layer and the light-emitting pattern are all located in the display area 1011c, which means that the anode layer n12, the second organic functional layer and the light-emitting pattern are only located in the display area 1011c, but not in the transition area 1011b. The first organic functional layer M may include at least a hole transport layer and an electron transport layer, and the second organic functional layer may include at least a hole injection layer and an electron injection layer.

[0136] refer to Figure 3 The pixel defining layer n13 included in the display substrate 101 may have a plurality of hollow regions, each of which may be used to expose an anode pattern of a pixel unit 1012. The anode pattern of each pixel unit 1012 is connected to the drain of the thin film transistor through a connection pattern.

[0137] In the embodiment of the present application, the encapsulation film layer n17 may include a first inorganic encapsulation layer n171, an organic encapsulation layer n172, and a second inorganic encapsulation layer n173 stacked in sequence. The first inorganic encapsulation layer n171 and the second inorganic encapsulation layer n173 are both located in the display area 1011c, the peripheral area 1011d, and the transition area 1011b, and the organic encapsulation layer n172 is located on the side of the second blocking structure close to the display area 1011c.

[0138] Since the material of the organic encapsulation layer n172 can be an organic material, the organic encapsulation layer n172 is not located in the peripheral area 1011d and the transition area 1011b, which can prevent water vapor and oxygen from entering the display area 1011c from the organic encapsulation layer n172, thereby ensuring the encapsulation effect.

[0139] Optionally, the material of the first inorganic encapsulation layer n171 is silicon oxynitride (SiNO), and the material of the second inorganic encapsulation layer n173 is silicon nitride (SiN). The organic encapsulation layer n172 is made of a resin material. The resin can be a thermoplastic resin or a thermoplastic resin, the thermoplastic resin can include an acrylic (PMMA) resin, and the thermosetting resin can include an epoxy resin.

[0140] Optionally, the first inorganic encapsulation layer n171 and the second inorganic encapsulation layer n173 can be fabricated by chemical vapor deposition (CVD). The organic encapsulation layer n172 is fabricated by ink jet printing (IJP).

[0141] In the embodiments of the present application, referring to Figure 1 , the first barrier structure 107 may include: a first barrier dam 1071. The first barrier dam 1071 may include a first pattern t1 and a second pattern t2 stacked in sequence on a side away from the substrate 1011. Among them, the first pattern t1 is located in the second flat layer, and the second pattern t2 is located in the pixel defining layer n13.

[0142] Of course, the first barrier structure 107 may include a first barrier dam 1071 and a second barrier dam (not shown in the figure) arranged along the direction close to the hole region 1011a. Optionally, the height of the first barrier dam 1071 and the height of the second barrier dam may be equal. For example, both the first barrier dam 1071 and the second barrier dam include the pattern of the second flat layer and the pattern of the pixel defining layer n13. Of course, the height of the first barrier dam 1071 and the height of the second barrier dam may also be unequal, and the embodiments of the present application do not limit this.

[0143] In the embodiments of the present application, referring to Figure 3 , the display panel 10 further includes: a touch control substrate 109 and a second flat film layer 110 located on the display substrate 101 and the first dimming layer 102 and stacked in a direction away from the display substrate 101. The touch control substrate 109 includes a first touch control electrode layer 1091, a touch control insulating layer 1092, and a second touch control electrode layer 1093 stacked in sequence on the light-emitting side of the display substrate 101.

[0144] Among them, one of the first touch control electrode layer 1091 and the second touch control electrode layer 1093 includes a bridging electrode s12 of a plurality of first touch control electrodes s1, and the other of the first touch control electrode layer 1091 and the second touch control electrode layer 1093 includes a main electrode s11 of a plurality of first touch control electrodes s1 and a plurality of second touch control electrodes s2. The bridging electrode and the main electrode are electrically connected through a via hole in the touch control insulating layer 1092.

[0145] Optionally, referring to Fig.19, the bridge electrodes of the plurality of first touch electrodes s1 are located in the first touch electrode layer 1091, the main electrodes s11 of the plurality of first touch electrodes s1 and the plurality of second touch electrodes s2 are located in the second touch electrode layer 1093. Alternatively, the main electrodes s11 of the plurality of first touch electrodes s1 and the plurality of second touch electrodes s2 are located in the first touch electrode layer 1091, and the bridge electrodes s12 of the plurality of first touch electrodes s1 are located in the second touch electrode layer 1093.

[0146] Furthermore, the touch substrate 109 may also include: a driving circuit and a detection circuit located in the peripheral area 1011d. The driving circuit is electrically connected to the plurality of first touch electrodes s1, and is used to provide a driving signal to the first touch electrodes s1. The detection circuit is electrically connected to the second touch electrodes s2, and is used to detect the sensing signal between the first touch electrodes s1 and the second touch electrodes s2 received from the second touch electrodes s2.

[0147] In the process of the driving circuit providing the driving signal to the first touch electrode s1, the detection circuit can detect the sensing signal between the first touch electrode s1 and the second touch electrode s2 received from the second touch electrode s2. If the user's finger approaches the display panel, the detection circuit can detect that the sensing signal at the position where the user's finger is located changes, and can determine the position where the sensing signal changes as the touch position.

[0148] Optionally, since the driving circuit is electrically connected to the first touch electrode s1, the first touch electrode s1 may be a transmitting (TX) electrode. Since the detection circuit is electrically connected to the second touch electrode s2, the second touch electrode s2 may be a sensing (RX) electrode.

[0149] refer to Figure 3 , the portion of the first dimming layer 102 located in the display area 1011c includes a plurality of dimming patterns 1025, and the orthographic projection of the dimming pattern 1025 on the base substrate 1011 and the orthographic projection of the interval between adjacent pixel units 1012 on the base substrate 1011 overlap. In addition, the angle between the extended surface of the side wall of the dimming pattern 1025 and the bearing surface of the base substrate 1011 is an acute angle or an obtuse angle. That is, the extended surface of the side wall of the dimming pattern 1025 is inclined relative to the bearing surface of the base substrate 1011.

[0150] Optionally, by setting the refractive index of the first dimming layer 102 to be smaller than the refractive index of the second dimming layer 103 , the side of the dimming pattern 1025 can refract and converge the light. That is, the light emitted by the pixel unit 1012 can be converged after being refracted at the side of the dimming pattern 1025 .

[0151] In the embodiment of the present application, the second flat film layer 110 may be a whole-surface film layer located in the display area 1011c and the transition area 1011b, and extending directly to the hole area 1011a. Although the second flat film layer 110 is located between the display substrate 101 and the second dimming layer 103 and is also an intermediate transfer layer, the distance between the second flat film layer 110 and the second dimming layer 103 in the longitudinal direction (perpendicular to the bearing surface of the base substrate 1011) is relatively far, so the effect of the second flat film layer 110 as an intermediate transfer layer in transmitting the pulling force is not particularly good, and even if the second flat film layer 110 is designed as a whole-surface film layer, the impact on the hole area 1011a will not be significant.

[0152] Alternatively, the second flat film layer 110 includes a fourth target portion located in the display area 1011c and the transition area 1011b and having a continuous film layer. The fourth boundary of the fourth target portion close to the hole area 1011a is located in the transition area 1011b, and the distance between the fourth boundary and the display area 1011c is smaller than the distance between the fourth boundary and the hole area 1011a. In other words, the second flat film layer 110 can be designed to be retracted relative to the hole area 1011a to further reduce the transmission of the pulling force.

[0153] Optionally, the fourth boundary of the fourth target portion may be retracted or wrapped relative to the first boundary 1031a of the first target portion 1031 , the second boundary 1021a of the second target portion 1021 , and the third boundary 1051a of the third target portion 1051 .

[0154] For example, in Figure 6 In the case of the first boundary 1031a of the first target portion 1031, the second boundary 1021a of the second target portion 1021, and the third boundary 1051a of the third target portion 1051, the fourth boundary of the fourth target portion can be further away from the display area 1011c than the third boundary 1051a of the third target portion 1051. That is, the fourth target portion, the third target portion 1051, the second target portion 1021, and the first target portion 1031 shrink inward in sequence in the direction away from the hole area 1011a. Figure 7 In the case of the first boundary 1031a of the first target portion 1031, the second boundary 1021a of the second target portion 1021, and the third boundary 1051a of the third target portion 1051, the fourth boundary of the fourth target portion may be closer to the display area 1011c than the third boundary 1051a of the third target portion 1051. That is, the fourth target portion, the third target portion 1051, the second target portion 1021, and the first target portion 1031 are sequentially wrapped toward the direction close to the hole area 1011a.

[0155] In summary, an embodiment of the present application provides a display panel, which includes a display substrate, a first dimming layer and a second dimming layer, and the display substrate includes a base substrate and a plurality of pixel units. The refractive index of the first dimming layer is different from the refractive index of the second dimming layer, thereby achieving the effect of converging the light emitted by the pixel unit, so as to increase the amount of light emitted in the forward direction of the pixel unit and improve the display effect of the display panel. In addition, since the distance between the first boundary of the first target part of the second dimming layer, which is located in the display area and the transition area and has a continuous film layer, and the hole area is large, the pulling force generated by the expansion of the first target part of the second dimming layer on the hole area can be reduced. In this way, the possibility of separation of the film layer in the display panel can be reduced, and the yield of the display panel can be improved.

[0156] Fig. 20 is a schematic diagram of the structure of a display device provided in an embodiment of the present application. Fig. 20 The display device may include: a power supply component 20 and the display panel 10 provided in the above embodiment. The power supply component 20 may be used to supply power to the display panel 10.

[0157] Optionally, the display device can be an OLED display device, a quantum dot light emitting diode (QLED) display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame or a navigator, or any other product or component with a display function and a fingerprint recognition function.

[0158] For example, the display device is an active-matrix organic light-emitting diode (AMOLED) display panel.

[0159] Since the display device can have substantially the same technical effects as the display panel described in the previous embodiment, the technical effects of the display device will not be repeatedly described here for the purpose of brevity.

[0160] The terms used in the embodiments of this application are only used to explain the embodiments of this application, and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of this application should be the common meanings understood by people with general skills in the field to which this application belongs.

[0161] The terms used in the implementation mode of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the implementation mode of the present application should be the common meanings understood by people with ordinary skills in the field to which the present application belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. Words such as "include" or "include" and similar words mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0162] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, It is characterized in that The display panel comprises: a display substrate; the display substrate comprises: A substrate substrate having a hole area, a transition area surrounding the hole area, and a display area surrounding the transition area; and, a plurality of pixel units located on one side of the base substrate, the plurality of pixel units being located in the display area; The display panel further includes: a first dimming layer and a second dimming layer which are located at a side of the plurality of pixel units away from the base substrate and are sequentially stacked, the refractive index of the first dimming layer is different from the refractive index of the second dimming layer, and the first dimming layer and the second dimming layer are at least located in the display area; The second dimming layer includes a first target portion located in the display area and the transition area and having a continuous film layer, the first target portion is located in the transition area close to a first boundary of the hole area, and the distance between the first boundary and the display area is smaller than the distance between the first boundary and the hole area.

2. The display panel according to claim 1, It is characterized in that The first dimming layer includes a second target portion located in the transition area and having a continuous film layer. The second target portion is located in the transition area near a second boundary of the hole area, and a distance between the second boundary and the display area is smaller than a distance between the second boundary and the hole area.

3. The display panel according to claim 2, It is characterized in that The second boundary is farther away from the display area than the first boundary, and the orthographic projection of the first boundary on the substrate is located within the orthographic projection of the second target portion on the substrate; or, The first boundary is farther away from the display area than the second boundary, and the orthographic projection of the first target portion on the base substrate covers the orthographic projection of the second boundary on the base substrate.

4. The display panel according to claim 2, It is characterized in that The display panel further includes: a color filter layer and a first flat film layer located between the display substrate and the first dimming layer and stacked in a direction away from the display substrate; The color filter layer includes a plurality of color blocks located in the display area and a black matrix located in the display area, the orthographic projection of the color blocks on the substrate overlaps with the orthographic projection of the light-emitting area of ​​the pixel unit on the substrate, the light emitted by the pixel unit passes through the color blocks and then exits, and the orthographic projection of the black matrix on the substrate is located between the light-emitting areas of adjacent pixel units; The first flat film layer includes a third target portion located in the display area and the transition area and having a continuous film layer. The third target portion is located in the transition area near a third boundary of the hole area, and the distance between the third boundary and the display area is smaller than the distance between the third boundary and the hole area.

5. The display panel according to claim 4, It is characterized in that The second boundary is farther from the display area than the first boundary, and the third boundary is farther from the display area than the second boundary; The orthographic projection of the first boundary on the substrate is located within the orthographic projection of the second target portion on the substrate, and the orthographic projection of the second boundary on the substrate is located within the orthographic projection of the third target portion on the substrate.

6. The display panel according to claim 4, It is characterized in that The second boundary is farther from the display area than the third boundary, and the first boundary is farther from the display area than the second boundary; The orthographic projection of the first target portion on the substrate covers the orthographic projection of the second boundary on the substrate, and the orthographic projection of the second target portion on the substrate covers the orthographic projection of the third boundary on the substrate.

7. The display panel according to claim 4, It is characterized in that The second boundary is further away from the display area than the third boundary, and the first boundary is further away from the display area than the third boundary; The orthographic projection of the second boundary on the substrate is located at the orthographic projection of the third target part on the substrate, and the orthographic projection of the first target part on the substrate covers the orthographic projection of the second boundary on the substrate and covers the orthographic projection of the third boundary on the substrate.

8. The display panel according to claim 1, It is characterized in that The second dimming layer further includes a plurality of first dimming island patterns located in the transition region and evenly spaced; The plurality of first dimming island patterns are close to the hole area relative to the first target portion, and there is a gap between any of the first dimming island patterns and the first target portion.

9. The display panel according to claim 8, It is characterized in that The first dimming layer includes a second target portion located in the transition region and having a continuous film layer, and the second target portion is located in the transition region near a second boundary of the hole area; The second boundary is farther away from the display area than the plurality of first dimming island patterns, and the orthographic projections of the plurality of first dimming island patterns on the base substrate are located within the orthographic projection of the second target portion on the base substrate.

10. The display panel according to claim 1, It is characterized in that The first dimming layer includes a second target portion located in the transition region and having a continuous film layer, the second target portion is located in the transition region near a second boundary of the hole region; the second boundary is farther from the display region than the first boundary, and an orthographic projection of the first boundary on the base substrate is located within an orthographic projection of the second target portion on the base substrate; The first dimming layer also includes a plurality of second dimming island patterns located in the transition area and evenly spaced, wherein the plurality of second dimming island patterns are farther away from the display area relative to the second target portion, and there is a gap between any second dimming island pattern and the second target portion.

11. The display panel according to claim 1, It is characterized in that The display panel further includes: a first flat film layer located between the display substrate and the first dimming layer; the material of the first dimming layer is different from the material of the first flat film layer; A portion where the orthographic projection of the first flat film layer on the base substrate, the orthographic projection of the first target portion on the base substrate, and the orthographic projection of the second target portion on the base substrate do not overlap has a plurality of island-shaped grooves that are spaced and evenly arranged; The first dimming layer includes a plurality of third dimming island patterns corresponding to the plurality of island-shaped grooves, and each of the third dimming island patterns is located in a corresponding one of the island-shaped grooves.

12. The display panel according to claim 1, It is characterized in that The second dimming layer further includes a plurality of first dimming ring patterns located in the transition region and spaced apart, wherein the orthographic projections of the first dimming ring patterns on the base substrate surround the hole region and are further away from the display region than the first target portion; There is a gap between any of the first dimming ring patterns and the first target portion; The first dimming layer further includes a plurality of second dimming ring patterns located in the transition region and arranged at intervals, wherein the orthographic projections of the second dimming ring patterns on the base substrate surround the hole region and are further away from the display region than the second target portion; There is a gap between any of the second dimming ring patterns and the second target portion; Wherein, the plurality of first dimming ring patterns and the plurality of second dimming ring patterns are arranged alternately.

13. The display panel according to claim 1, It is characterized in that The first dimming layer comprises a plurality of strip-shaped grooves located in the transition area, and the plurality of strip-shaped grooves are evenly arranged around the hole area; The second dimming layer includes a plurality of dimming stripe patterns corresponding to the plurality of stripe grooves, and each of the dimming stripe patterns is located in a corresponding one of the stripe grooves.

14. The display panel according to any one of claims 1 to 13, It is characterized in that The display substrate further comprises: a first organic functional layer located on one side of the base substrate, the first organic functional layer being located in the display region and the transition region; the display substrate further comprises: a first isolation column, a first blocking structure and a second isolation column which are located in the transition region and arranged in sequence in a direction away from the display region; The first organic functional layer is broken at at least one of the first isolation column and the second isolation column.

15. The display panel according to claim 14, It is characterized in that The display substrate comprises: a buffer layer, an active layer, a first gate insulating layer, a first gate layer, a second gate insulating layer, a second gate layer, an interlayer dielectric layer, a first source-drain electrode layer, a first planarization layer, a second source-drain electrode layer, a second planarization layer, an anode layer, a pixel defining layer, a support layer, a light-emitting film layer, a cathode layer and an encapsulation film layer, which are sequentially stacked in a direction away from the base substrate; The light-emitting film layer includes the first organic functional layer, the second organic functional layer and a light-emitting pattern, the first organic functional layer includes at least a hole transport layer and an electron transport layer, and the second organic functional layer includes at least a hole injection layer and an electron injection layer; The encapsulation film layer includes a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer stacked in sequence, the first inorganic encapsulation layer and the second inorganic encapsulation layer are located in the display area, the peripheral area and the transition area, and the organic encapsulation layer is located on a side of the first blocking structure close to the display area.

16. The display panel according to claim 15, It is characterized in that The first isolation column and the second isolation column both include at least a target film layer; The target film layer is located in the first source and drain electrode layer, and the orthographic projection of the target film layer on the reference plane is in an I-shape, and the reference plane is perpendicular to the supporting surface of the substrate.

17. The display panel according to claim 15, It is characterized in that The display substrate includes a plurality of second isolation columns; A distance between an orthographic projection of the first boundary on the base substrate and an orthographic projection of a center line of a second isolation column closest to the display area among the plurality of second isolation columns on the base substrate is greater than or equal to 100 micrometers.

18. The display panel according to any one of claims 1 to 13, It is characterized in that The display panel further includes: a touch control substrate and a second flat film layer located between the display substrate and the first dimming layer and stacked in a direction away from the display substrate; The touch control substrate comprises a first touch control electrode layer, a touch control insulating layer and a second touch control electrode layer stacked in sequence; One of the first touch electrode layer and the second touch electrode layer includes a bridge electrode of multiple first touch electrodes, the other of the first touch electrode layer and the second touch electrode layer includes a main electrode of the multiple first touch electrodes and a multiple second touch electrodes, and the bridge electrode and the main electrode are electrically connected through vias in the touch insulation layer.

19. The display panel according to claim 18, It is characterized in that The second flat film layer includes a fourth target portion located in the display area and the transition area and having a continuous film layer. The fourth target portion is located in the transition area near a fourth boundary of the hole area, and a distance between the fourth boundary and the display area is smaller than a distance between the fourth boundary and the hole area.

20. A display device, It is characterized in that The display device comprises: a power supply component and a display panel according to any one of claims 1 to 19; Wherein, the power supply component is used to supply power to the display panel.

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