Display panel and display device

Abstract

Disclosed are a display panel and a display device. The display panel provided by the present disclosure comprises: a base substrate; a plurality of light emitting devices located on one side of the base substrate; a packaging layer located on the side of the plurality of light emitting devices facing away from the base substrate; a light shielding layer located on the side of the packaging layer facing away from the base substrate, wherein the light shielding layer comprises a plurality of first openings, and the orthographic projections of light emitting areas of the light emitting devices on the base substrate fall within the orthographic projections of the first openings on the base substrate; and a plurality of first color resists located on the side of the packaging layer facing away from the base substrate, wherein each first color resist comprises a portion at least located in the first opening, each first color resist comprises a first inclined surface, the orthographic projection of the first inclined surface on the base substrate is located within the orthographic projection of the corresponding first opening on the base substrate, the first inclined surface is not in contact with the light shielding layer, and the included angle between the first inclined surface and the plane where the base substrate is located is greater than 0° and less than 90°.

Description

Display panel and display device Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diode (OLED) display panels have many advantages such as self-illumination, ultra-thinness, fast response speed, high contrast, and wide viewing angle, making them a type of display panel that is currently receiving widespread attention.

[0003] Summary of the Invention

[0004] This disclosure provides a display panel, which includes:

[0005] Substrate;

[0006] Multiple light-emitting devices are located on one side of the substrate.

[0007] The encapsulation layer is located on the side of the multiple light-emitting devices that faces away from the substrate.

[0008] A light-shielding layer is located on the side of the encapsulation layer opposite to the substrate; the light-shielding layer includes a plurality of first openings; the light-emitting area of ​​the light-emitting device, when projected onto the substrate, falls within the projection of the first opening onto the substrate.

[0009] Multiple first color resists are located on the side of the encapsulation layer away from the substrate. Each first color resist includes at least a portion located within a first opening. Each first color resist includes a first inclined surface, the orthographic projection of the first inclined surface onto the substrate is located within the orthographic projection of the first opening onto the substrate, and the first inclined surface does not contact the light-shielding layer. The angle between the first inclined surface and the plane of the substrate is greater than 0° and less than 90°.

[0010] In some embodiments, the angle between at least a portion of the first inclined surface and the first surface of the first color resist near the substrate is an acute angle.

[0011] In some embodiments, the orthographic projection of the first color resist onto the substrate and the orthographic projection of the light-shielding layer onto the substrate do not overlap.

[0012] The first color resist also includes: a second surface located on the side of the first surface facing away from the substrate; the first inclined surface is a side surface connecting the first surface and the second surface.

[0013] In some embodiments, the area of ​​the first surface is greater than the area of ​​the second surface, and the cross-section of the first color resist perpendicular to the plane of the substrate is an isosceles trapezoid.

[0014] In some embodiments, the first color resist includes: a plurality of sub-color resists spaced apart in a direction parallel to the plane of the substrate; the plurality of sub-color resists include the first sub-color resist.

[0015] The projection of the first sub-color resist onto the substrate and the projection of the light-shielding layer onto the substrate do not overlap;

[0016] The sub-color resist further includes: a second surface located on the side of the first surface facing away from the substrate; a first inclined surface is a side surface connecting the first surface and the second surface; at least the first sub-color resist includes the first inclined surface.

[0017] In some embodiments, the area of ​​the first surface of the first sub-color resist is greater than the area of ​​the second surface, and the cross-section of the first sub-color resist perpendicular to the plane of the substrate is trapezoidal.

[0018] In some embodiments, the plurality of sub-color resistors further include a second sub-color resistor;

[0019] The projection of the second sub-color resist onto the substrate overlaps with the projection of the light-shielding layer onto the substrate.

[0020] In some embodiments, the display panel further includes:

[0021] A planarizing insulating layer is located on the side of the light-shielding layer and the first color resist away from the substrate; the orthographic projection of the planarizing insulating layer onto the substrate covers the orthographic projection of the light-shielding layer and the first color resist onto the substrate; the refractive index of the planarizing insulating layer is less than the refractive index of the first color resist.

[0022] In some embodiments, the planarization insulation layer includes:

[0023] The non-transparent insulating layer is a gray color film; the refractive index of the non-transparent insulating layer is less than the refractive index of the first color resist; the transmittance of the first color resist to light with a peak wavelength is greater than or equal to 60% and less than or equal to 80%; the transmittance of the non-transparent insulating layer to light with a wavelength greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness is greater than or equal to 50% and less than or equal to 80%.

[0024] In some embodiments, the distance between the surface of the non-transparent insulating layer furthest from the substrate and the surface of the first color resist furthest from the substrate is greater than or equal to 1 micrometer.

[0025] In some embodiments, the planarization insulation layer further includes:

[0026] A transparent insulating layer is located on the side of the non-transparent insulating layer that faces away from the substrate; the transmittance of the transparent insulating layer is greater than that of the non-transparent insulating layer.

[0027] In some embodiments, the maximum thickness of the non-transparent insulating layer is greater than or equal to 2 micrometers and less than or equal to 4 micrometers; and / or

[0028] The thickness of the transparent insulating layer is greater than or equal to 2 micrometers and less than or equal to 4 micrometers;

[0029] The first color resist has a transmittance of 50% or more and less than or equal to 70% for light with a peak wavelength; the non-transparent insulating layer has a transmittance of 50% or more and less than or equal to 70% for light with a wavelength greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness.

[0030] In some embodiments, the planarization insulation layer includes:

[0031] A transparent insulating layer; the surface of the transparent insulating layer facing away from the substrate includes multiple grooves; the depth of the grooves is less than the thickness of the transparent insulating layer;

[0032] The display panel also includes:

[0033] Multiple second color resists are located within the groove; the second color resists overlap with the area between the light-shielding layer and the first color resist in the orthographic projection of the substrate.

[0034] In some embodiments, the first color resist includes a plurality of sub-color resists; the regions of the second color resist in the orthographic projection of the substrate and the adjacent sub-color resists overlap in the orthographic projection of the substrate.

[0035] In some embodiments, the angle between at least a portion of the first inclined surface and the first surface of the first color resist near the substrate is an obtuse angle.

[0036] In some embodiments, the display panel further includes: a plurality of first light-transmitting portions; the refractive index of the first light-transmitting portions is less than the refractive index of the first color resist;

[0037] The first light-transmitting part is in contact with the light-shielding layer, and the orthographic projection of the first light-transmitting part on the substrate overlaps with the orthographic projection of the first opening on the substrate.

[0038] The first light-transmitting portion includes: a second inclined surface; the orthographic projection of the second inclined surface onto the substrate is located within the orthographic projection of the first opening onto the substrate;

[0039] The first light-transmitting portion further includes: a third surface and a fourth surface parallel to the plane of the substrate; the second inclined surface is a side surface connecting the third surface and the fourth surface within the first opening; the fourth surface is located on the side of the third surface away from the substrate.

[0040] The first inclined plane is in contact with the second inclined plane.

[0041] In some embodiments, the first light-transmitting portion is located on the side of the light-shielding layer away from the substrate, and the first light-transmitting portion covers the side of the light-shielding layer facing the first opening.

[0042] In some embodiments, the first light-transmitting portions corresponding to two adjacent first openings are disconnected from each other;

[0043] Alternatively, the first light-transmitting parts corresponding to two adjacent first openings can be integrally connected.

[0044] In some embodiments, the light-shielding layer is located on the side of the first light-transmitting portion away from the substrate.

[0045] In some embodiments, the distance between the surface of the first color resist away from the substrate and the substrate is greater than the distance between the surface of the light-shielding layer away from the substrate and the substrate.

[0046] The first color resist overlaps with the side of the light-shielding layer facing the first opening in the orthogonal projection of the substrate.

[0047] In some embodiments, the distance between the surface of the first color resist away from the substrate and the substrate is less than the distance between the surface of the light-shielding layer away from the substrate and the substrate.

[0048] The projection of the first color resist onto the substrate and the projection of the side of the light-shielding layer facing the first opening onto the substrate do not overlap.

[0049] In some embodiments, the display panel further includes a planarization insulating layer;

[0050] The planarization insulating layer is a transparent insulating layer. The first light-transmitting part has a transmittance of 50% and 80% for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers in the region of its maximum thickness.

[0051] Alternatively, the planarization insulating layer includes a non-transparent insulating layer, wherein the non-transparent insulating layer has a first transmittance for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness, and the first light-transmitting portion has a second transmittance for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness, and the sum of the first transmittance and the second transmittance is greater than or equal to 50% and less than or equal to 80%.

[0052] In some embodiments, the display panel further includes: a plurality of second light-transmitting portions;

[0053] The refractive index of the second light-transmitting part is less than that of the first color resist; the second light-transmitting part is located between the first color resist and the encapsulation layer, and the orthogonal projection of the second light-transmitting part onto the substrate falls within the orthogonal projection of the first opening onto the substrate.

[0054] The second light-transmitting portion includes: a fifth surface and a sixth surface parallel to the plane of the substrate, and a third inclined surface connecting the fifth surface and the sixth surface; the sixth surface is located on the side of the fifth surface away from the substrate.

[0055] The first inclined plane is in contact with the third inclined plane.

[0056] In some embodiments, the display panel further includes a planarization insulating layer;

[0057] The planarization insulation layer is a transparent insulation layer, and the second light-transmitting part has a transmittance of 50% and 80% for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers in the region of its maximum thickness.

[0058] Alternatively, the planarization insulating layer includes a non-transparent insulating layer, wherein the non-transparent insulating layer has a first transmittance for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness, and a second light-transmitting portion has a third transmittance for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness, wherein the sum of the first transmittance and the third transmittance is greater than or equal to 50% and less than or equal to 80%.

[0059] In some embodiments, the display panel further includes: a first light-transmitting portion; the first light-transmitting portion and the second light-transmitting portion are organic resins with added carbon black or colored pigments.

[0060] This disclosure provides a display device, which includes a display panel provided in this disclosure. Attached Figure Description

[0061] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0062] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of this disclosure;

[0063] Figure 2 is a schematic diagram of another display panel provided in an embodiment of this disclosure;

[0064] Figure 3 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0065] Figure 4 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0066] Figure 5 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0067] Figure 6 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0068] Figure 7 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0069] Figure 8 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0070] Figure 9 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0071] Figure 10 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0072] Figure 11 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0073] Figure 12 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0074] Figure 13 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0075] Figure 14 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0076] Figure 15 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0077] Figure 16 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0078] Figure 17 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0079] Figure 18 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0080] Figure 19 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0081] Figure 20 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0082] Figure 21 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0083] Figure 22 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0084] Figure 23 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0085] Figure 24 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0086] Figure 25 is a schematic diagram of the structure of another display panel provided in an embodiment of this disclosure;

[0087] Figure 26 is a schematic diagram of the spectrum of a gray color film provided in an embodiment of this disclosure. Detailed Implementation

[0088] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Furthermore, the embodiments and features in the embodiments of this disclosure can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0089] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0090] It should be noted that the dimensions and shapes of the figures in the accompanying drawings do not reflect actual proportions and are intended only to illustrate the content of this disclosure. Furthermore, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0091] One related technology is a color filter on encapsulation (COE) technique, which involves placing a filter on the light-emitting side of the OLED display panel. Since the filter can filter light, it can reduce the amount of ambient light entering the OLED display panel that is reflected by the internal structure and emitted from the light-emitting side. However, in this technology, the forward light emission efficiency of the COE panel sub-pixels is relatively low, affecting the display effect.

[0092] This disclosure provides a display panel, as shown in FIG1, comprising:

[0093] Substrate 1;

[0094] Multiple light-emitting devices 2 are located on one side of the substrate 1;

[0095] The encapsulation layer 3 is located on the side of the plurality of light-emitting devices 2 that is away from the substrate 1;

[0096] The light-shielding layer 4 is located on the side of the encapsulation layer 3 away from the substrate 1; the light-shielding layer 4 includes a plurality of first openings 401; the light-emitting area of ​​the light-emitting device 2 is projected onto the substrate 1 and falls into the first opening 401 within the projection of the substrate 1.

[0097] Multiple first color resists 5 are located on the side of the encapsulation layer 3 away from the substrate 1; each first color resist 5 includes at least a portion located within the first opening 401; each first color resist 5 includes a first inclined surface 10, the orthographic projection of the first inclined surface 10 onto the substrate 1 is located within the orthographic projection of the first opening 401 onto the substrate 1, and the first inclined surface 10 does not contact the light-shielding layer 4, and the angle between the first inclined surface 10 and the plane of the substrate 1 is greater than 0° and less than 90°.

[0098] It should be noted that the direction perpendicular to the substrate is defined as the positive direction, and the other directions are defined as the lateral direction. As shown in Figure 1, in the light 6 emitted by the light-emitting device, the lateral light is deflected when it reaches the first inclined surface 10. Depending on the incident angle, it can be deflected into positive light or light with an emission direction close to the positive direction.

[0099] The display panel provided in this embodiment includes a first color resist comprising an inclined first slope located within a first opening and not in contact with a light-shielding layer. When light reaches the first slope, the light path of the light originally emitted laterally is changed, enabling it to emit light in the forward direction, thereby improving luminous efficiency and increasing light output brightness.

[0100] In some embodiments, as shown in FIG1, the display panel further includes:

[0101] The pixel definition layer 7 includes a plurality of second openings 701; the light-emitting device 2 is located within the second openings 701.

[0102] The light-emitting device 2 includes: a first electrode 201, a light-emitting layer 202, and a second electrode 203 stacked on one side of the substrate 1;

[0103] The second opening 701 is projected onto the substrate 1 and falls within the projection of the first electrode 201 onto the substrate 1. The pixel definition layer 7 covers the edge of the first electrode 201. The light-emitting layer 202 and the second electrode 203 are located on the side of the pixel definition layer 7 away from the substrate 1.

[0104] In some embodiments, the first electrode is the anode and the second electrode is the cathode.

[0105] In some embodiments, the light-emitting layer includes an organic light-emitting layer, and may also include an electron injection layer, an electron transport layer, a hole transport layer, a hole injection layer, etc.

[0106] In some embodiments, the display panel includes a plurality of sub-pixels, and the area corresponding to the second opening is the sub-pixel opening area.

[0107] In some embodiments, the light-emitting device corresponds one-to-one with the sub-pixel, and the first color resist corresponds one-to-one with the sub-pixel.

[0108] In some embodiments, the plurality of sub-pixels includes: a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels;

[0109] In some embodiments, as shown in FIG1, the plurality of light-emitting devices 2 include: a plurality of first light-emitting devices 2-1, a plurality of second light-emitting devices 2-2 and a plurality of third light-emitting devices 2-3; the first light-emitting device 2-1 includes a first organic light-emitting layer 2021, the second light-emitting device 2-2 includes a second organic light-emitting layer 2022, and the third light-emitting device 2-3 includes a third organic light-emitting layer 2023.

[0110] The plurality of first color resists 5 include: a plurality of first color first color resists 5-1, a plurality of second color first color resists 5-2, and a plurality of third color first color resists 5-3.

[0111] Specifically, the first sub-pixel includes a first light-emitting device and a first color color resist; the second sub-pixel includes a second light-emitting device and a second color resist of the first color; and the third sub-pixel includes a third light-emitting device and a first color resist of the third color.

[0112] In some embodiments, the first sub-pixel is a blue sub-pixel, the first light-emitting device is a blue light-emitting device, the first organic light-emitting layer is a blue organic light-emitting layer, and the first color resist is a blue color resist.

[0113] The second sub-pixel is a green sub-pixel, the second light-emitting device is a green light-emitting device, the second organic light-emitting layer is a green organic light-emitting layer, and the first color resist of the second color is a green color resist.

[0114] The third sub-pixel is a red sub-pixel, the third light-emitting device is a red light-emitting device, the third organic light-emitting layer is a red organic light-emitting layer, and the first color resist of the third color is a red color resist.

[0115] The display panel provided in this disclosure has different colors of the first color resist corresponding to different color sub-pixels. Specifically, the first color resist is, for example, a color filter. This configuration enables the display panel provided in this disclosure to achieve polarizer-free technology, i.e., a color filter on encapsulation (COE) structure. Since the transmittance of the first color resist is generally higher than that of a polarizer, replacing the polarizer with a color filter on the encapsulation layer can improve the transmittance of the display panel, thereby improving light utilization.

[0116] In some embodiments, as shown in FIG1, the encapsulation layer 3 includes a first inorganic encapsulation film 301, an organic encapsulation film 302, and a second inorganic encapsulation film 303 stacked together.

[0117] In some embodiments, the display panel further includes a driving circuit layer (not shown in FIG1), which is located between the substrate 1 and the light-emitting device 2; the driving circuit layer includes a plurality of pixel driving circuits arranged in an array; the pixel driving circuit is used to drive the light-emitting device to emit light; the pixel driving circuit includes a thin film transistor and a storage capacitor; as shown in FIG2, the thin film transistor TFT includes: an active layer 1501, a gate G, a source S and a drain D.

[0118] The display panel further includes: a buffer layer 16 located between the substrate 1 and the active layer 1501; a first gate insulating layer 17 located between the active layer 1501 and the gate G; an interlayer insulating layer 18 located between the first gate insulating layer 17 and the source S and drain D; and a planarization layer 19 located between the light-emitting device 2 and the source S and drain D. The first electrode 201 is connected to the drain D through a via penetrating the planarization layer 19.

[0119] It should be noted that the active layer can be fabricated using amorphous silicon, polycrystalline silicon, oxide semiconductor materials, etc. The active layer includes a source region, a drain region, and a channel region located between the source and drain regions. The source and drain regions can be conductive regions formed by doping with n-type or p-type impurities. The source regions overlap with each other, and the drain regions overlap with each other.

[0120] In some embodiments, the display panel further includes multiple scan lines and multiple data lines, wherein the scan lines are electrically connected to the gate and the data lines are electrically connected to the source.

[0121] It should be noted that Figure 2 uses a thin-film transistor (TFT) with a top-gate structure as an example, where the gate G is located on the side of the active layer 1501 facing away from the substrate 1. Of course, the TFT can also have a bottom-gate or other structures. If the TFT has a bottom-gate structure, the active layer is located on the side of the gate facing away from the substrate. Similarly, a first gate insulating layer is also included between the gate and the active layer, and the source and drain are in direct contact with the active layer on the side of the active layer facing away from the substrate.

[0122] In some embodiments, the storage capacitor includes a first capacitor electrode and a second capacitor electrode disposed opposite to each other. For example, the first capacitor electrode is disposed in the same layer as the gate, and the second capacitor electrode is disposed in the same layer as the source and drain. Alternatively, the second capacitor electrode may be disposed in the same layer as the source and drain, and the first capacitor electrode may be located between the interlayer insulating layer and the gate; the display panel further includes a second gate insulating layer located between the first capacitor electrode and the gate.

[0123] In some embodiments, as shown in Figures 1 and 3 to 13, at least a portion of the first inclined surface 10 and the first surface 12 of the first color resist 5 near the substrate 1 form an acute angle α1. Thus, the light 6 incident on the first color resist 5 and propagating laterally is refracted upon reaching the first inclined surface 10, allowing the lateral light to exit in the forward direction, thereby improving luminous efficiency and increasing brightness.

[0124] It should be noted that, as shown in Figures 1 and 3 to 13, the angle α1 between the first inclined surface 10 at all positions of the first color resist 5 and the first surface 12 of the first color resist 5 on the side closer to the substrate 1 is an acute angle.

[0125] In some embodiments, among the plurality of first color resists included in the display panel, the angles between the first slope and the first surface of different first color resists may all be the same, or the angles between the first slope and the first surface of different first color resists may all be different, or the angles between the first slope and the first surface of different first color resists may not be completely the same. For example, the angles between the first slope and the first surface of first color resists of different colors may be the same; or the angles between the first slope and the first surface of first color resists of different colors may be different; or some of the first color resists may have the same angle between their first slope and the first surface, while the angles between the first slope and the first surface of the remaining first color resists may be different from the angles between the first slope and the first surface of the aforementioned partial first color resists.

[0126] In some embodiments, among the plurality of first color resists included in the display panel, the thicknesses of the different first color resists may all be the same, the thicknesses of the different first color resists may all be different, or the thicknesses of the different first color resists may not be completely the same. For example, the thicknesses of the first color resists of different colors may be the same; the thicknesses of the first color resists of different colors may be different; or some of the first color resists may have the same thickness, while the thicknesses of the remaining first color resists may be different from the thicknesses of the aforementioned partial first color resists.

[0127] In some embodiments, as shown in Figures 1, 3, 4, and 11, the orthographic projection of the first color resist 5 onto the substrate 1 and the orthographic projection of the light-shielding layer 4 onto the substrate 1 do not overlap.

[0128] The first color resist 5 also includes: a second surface 11 located on the side of the first surface 12 away from the substrate 1; the first inclined surface 10 is the side surface connecting the first surface 12 and the second surface 11.

[0129] It should be noted that in the relevant technologies, in the COE structure, the width of the color resist in the lateral direction (parallel to the plane of the substrate) is greater than the width of the opening area of ​​the light-shielding layer. The side of the color resist is located outside the opening area, and the light-emitting surface of the color resist inside the opening area is its top surface. It is impossible to change the direction of light propagation through its tilted side, resulting in a low proportion of positive light emission and low luminous efficiency.

[0130] The display panel provided in this embodiment has a first color resist completely located within a first opening, which is equivalent to reducing the lateral dimension of the first color resist compared to related technologies.

[0131] The display panel provided in this embodiment has a first color resist whose projection onto the substrate does not overlap with the projection of the light-shielding layer 4 onto the substrate. That is, the first color resist is completely located within the first opening and does not contact the light-shielding layer, and its inclined side is also located within the first opening. This allows lateral light to reach the inclined side located within the first opening and emit light in the forward direction, thereby improving luminous efficiency and increasing light output brightness.

[0132] In some embodiments, as shown in Figures 1, 3, 4, and 11, the first color resist 5 is completely located within the first opening 401. Therefore, any inclined side of any region of the first color resist 5 is also located within the first opening 401. That is, the side of the first color resist 5 that connects the first surface 12 and the second surface 11 is the first inclined surface 10.

[0133] In some embodiments, as shown in Figures 1, 3, 4, and 11, the area of ​​the first surface 12 is greater than the area of ​​the second surface 11.

[0134] In some embodiments, as shown in Figures 1, 3, 4, and 11, the first color resist 5 has a trapezoidal cross-section in the plane perpendicular to the substrate 1.

[0135] In some embodiments, as shown in Figures 1, 3, 4, and 11, the first color resist 5 has an isosceles trapezoidal cross-section in the plane perpendicular to the substrate 1.

[0136] Alternatively, in some embodiments, the first color resist has a cross-section in a semi-circular or other shape perpendicular to the plane of the substrate.

[0137] In some embodiments, as shown in Figures 1, 3, 4, and 11, the first color resist 5 is a continuously arranged complete pattern. It should be noted that a continuously arranged complete pattern means that there are no openings, gaps, breaks, or other areas within the pattern.

[0138] In some embodiments, as shown in Figures 1, 3, 4, and 11, the angle α1 between the first inclined surface 10 and the first surface 12 of the first color resist 5 on the side near the substrate 1 is greater than or equal to 50° and less than or equal to 80°. This can improve the forward light extraction efficiency of the first inclined surface 10, thereby improving the luminous efficiency and increasing the emitted light brightness.

[0139] Alternatively, in some embodiments, as shown in Figures 5 to 10, 12 and 13, the first color resist 5 includes: a plurality of sub-color resists 501 spaced apart in a direction parallel to the plane of the substrate 1; that is, a plurality of spaced sub-color resists 501 are provided in a first opening 401.

[0140] Multiple sub-color resistors 501 include a first sub-color resistor 5011;

[0141] The orthographic projection of the first sub-color resist 5011 onto the substrate 1 and the orthographic projection of the light-shielding layer 4 onto the substrate 1 do not overlap.

[0142] The sub-color resist 501 further includes: a second surface 11 located on the side of the first surface 12 facing away from the substrate 1; a first inclined surface 10 is a side surface connecting the first surface 12 and the second surface 11; at least the first sub-color resist 5011 includes the first inclined surface 10.

[0143] The display panel provided in this embodiment includes a first color resist comprising a plurality of spaced sub-color resists. Compared to the case of only one complete color resist, the number of inclined sides can be increased, thereby increasing the number of first inclined surfaces, so that more lateral light can be emitted in the forward direction, further improving luminous efficiency and increasing light emission brightness.

[0144] It should be noted that the number of sub-color resists included in the first color resist can be set according to the size of the first opening and the difficulty of manufacturing the sub-color resists, and this disclosure does not impose any restrictions.

[0145] In some embodiments, as shown in Figures 5-10, 12, and 13, the angle α1 between the first inclined surface 10 of the first sub-color resist 5011 and the first surface 12 of the first color resist 5 near the substrate 1 is greater than or equal to 50° and less than or equal to 80°. This can improve the forward light extraction efficiency of the first inclined surface 10, thereby improving the luminous efficiency and increasing the emitted light brightness.

[0146] In some embodiments, as shown in Figures 5-10, 12, and 13, the distance between the sub-color resists 501 in the same first color resist 5 is greater than or equal to 0. It should be noted that, as shown in Figures 5-10, 12, and 13, the distance between the sub-color resists 501 in the same first color resist 5 refers to the distance between the first surfaces 12 of the sub-color resists 501.

[0147] In some embodiments, as shown in Figures 5 to 10, 12 and 13, the first sub-color resist 5011 is completely located within the first opening 401. Therefore, the inclined side of any region of it is also located in the first opening 401. That is, the side connecting the first surface 12 and the second surface 11 in the first sub-color resist 5011 is the first inclined surface 10.

[0148] In some embodiments, among the plurality of sub-color resists included in the display panel, the angles between the sides of different sub-color resists and the first surface may all be the same, or the angles between the sides of different sub-color resists and the first surface may all be different, or the angles between the sides of different sub-color resists and the first surface may not be completely identical. For example, the angles between the sides of sub-color resists of different colors and the first surface may be the same; or the angles between the sides of sub-color resists of different colors and the first surface may be different; or, among the plurality of first color resists, some sub-color resists may have the same angle between their sides and the first surface, while the angles between the sides of the remaining sub-color resists and the first surface may be different from the angles between the sides of the aforementioned partial sub-color resists. For example, the angles between the sides of the plurality of sub-color resists corresponding to a first opening may all be the same.

[0149] In some embodiments, among the multiple sub-color resists included in the display panel, the thicknesses of the different sub-color resists may all be the same, the thicknesses of the different sub-color resists may all be different, or the thicknesses of the different sub-color resists may not be completely the same. For example, the thicknesses of sub-color resists of different colors may be the same; the thicknesses of sub-color resists of different colors may be different; or some of the sub-color resists may have the same thickness, while the thicknesses of the remaining sub-color resists may be different from the thicknesses of the aforementioned partial sub-color resists. For example, the thicknesses of the multiple sub-color resists corresponding to a first opening may all be the same.

[0150] In some embodiments, as shown in Figures 5 to 10, 12 and 13, the area of ​​the first surface 12 of the first sub-color resist 5011 is greater than the area of ​​the second surface 11, and the cross-section of the first sub-color resist 5011 in the plane perpendicular to the substrate 1 is trapezoidal.

[0151] In some embodiments, as shown in Figures 5 to 10, 12 and 13, the first sub-color resist 5011 has an isosceles trapezoidal cross-section in the plane perpendicular to the substrate 1.

[0152] Alternatively, in some embodiments, the first sub-color resist has a cross-section in a semi-circular or other shape perpendicular to the plane of the substrate.

[0153] In some embodiments, among the plurality of first sub-color resists included in the display panel, the angles between the sides of different first sub-color resists and the first surface may all be the same, or the angles between the sides of different first sub-color resists and the first surface may all be different, or the angles between the sides of different first sub-color resists and the first surface may not be completely the same. For example, the angles between the sides of first sub-color resists of different colors and the first surface may be the same; or the angles between the sides of first sub-color resists of different colors and the first surface may be different; or, among the plurality of first sub-color resists, some first sub-color resists may have the same angle between their sides and the first surface, while the angles between the sides of the remaining first sub-color resists and the first surface may be different from the angles between the sides of the aforementioned partial first sub-color resists. For example, when one opening corresponds to multiple first sub-color resists, the angles between the sides of the multiple first sub-color resists corresponding to one first opening and the first surface may all be the same.

[0154] In some embodiments, among the plurality of first sub-color resists included in the display panel, the thicknesses of the different first sub-color resists may all be the same, the thicknesses of the different first sub-color resists may all be different, or the thicknesses of the different first sub-color resists may not be completely the same. For example, the thicknesses of the first sub-color resists of different colors may be the same; the thicknesses of the first sub-color resists of different colors may be different; or some of the first sub-color resists of multiple first sub-color resists may have the same thickness, while the thicknesses of the remaining first sub-color resists may be different from the thicknesses of the aforementioned partial first sub-color resists. For example, when one opening corresponds to multiple first sub-color resists, the thicknesses of the multiple first sub-color resists corresponding to one first opening may all be the same.

[0155] In some embodiments, as shown in Figures 5, 6, and 12, each sub-color resist 5011 includes a first inclined surface 10.

[0156] In some embodiments, as shown in Figures 5, 6, and 12, the first color resist 5 includes multiple sub-color resists 501, all of which are first sub-color resists 5011. This allows for the maximum increase in the number of first inclined surfaces while maintaining the same number of sub-color resists 501, further improving luminous efficiency and increasing light output brightness.

[0157] Alternatively, in some embodiments, as shown in Figures 8 to 10 and Figure 13, the plurality of sub-color resists 501 may further include a second sub-color resist 5012.

[0158] The projection of the second sub-color resist 5012 onto the substrate 1 overlaps with the projection of the light-shielding layer 4 onto the substrate 1.

[0159] In some embodiments, as shown in Figures 8 to 10 and Figure 13, a portion of the second sub-color resist 5012 is located within the first opening 401 of the light-shielding layer 4, and a portion of the second sub-color resist 5012 covers the side of the first opening 401 of the light-shielding layer 4 away from the substrate 1.

[0160] In some embodiments, as shown in Figures 8 to 10 and Figure 13, the second sub-color resist 5012 covers the side of the light-shielding layer 4 facing the first opening 401.

[0161] In some embodiments, as shown in Figures 8 to 10 and Figure 13, the second sub-color resist 5012 also covers a portion of the surface of the light-shielding layer 4 on the side away from the substrate 1.

[0162] In some embodiments, as shown in Figures 8-10 and Figure 13, the second sub-color resist 5012 also includes a first inclined surface 10 located in the first opening 401. That is, the portion of the second sub-color resist 5012 located on the side inside the first opening 401 is the first inclined surface 10.

[0163] The display panel provided in this embodiment has some sub-color resists in the first color resist covering the side of the light-shielding layer, which eliminates the need to place all sub-color resists in the first opening, thus reducing the difficulty of graphicizing multiple sub-color resists.

[0164] In some embodiments, as shown in Figures 8-10 and Figure 13, the angle α1 between the first inclined surface 10 of the second sub-color resist 5012 and the first surface 12 of the second sub-color resist 5012 near the substrate 1 is greater than or equal to 50° and less than or equal to 80°. This can improve the forward light extraction efficiency of the first inclined surface 10, thereby improving the luminous efficiency and increasing the light extraction brightness.

[0165] In some embodiments, as shown in Figures 8 to 10 and 13, the second sub-color resist 5012 further includes a fourth inclined surface 20;

[0166] The fourth inclined surface 20 is the side surface of the area outside the first opening 401. That is, the side surface of the second sub-color resist 5012 is divided into: the first inclined surface 10 located inside the first opening 401 and the fourth inclined surface 20 located outside the first opening 401.

[0167] In some embodiments, to simplify the fabrication and design of the second sub-color resist, the angle between the fourth inclined plane and the first surface is greater than or equal to 50° and less than or equal to 80°.

[0168] In some embodiments, as shown in Figures 8 to 10 and Figure 13, when the first color resist 5 includes a second sub-color resist 5012 and a first sub-color resist 5011; the side of the first sub-color resist 5011 connecting the first surface 11 and the second surface 12 is a first inclined surface 10; the side of the second sub-color resist 5012 located inside the first opening 401 connecting the first surface 11 and the second surface 12 is a first inclined surface 10; and the fourth inclined surface 20 of the second sub-color resist 5012 located outside the first opening 401 is not part of the first inclined surface.

[0169] In some embodiments, the angle between the first inclined surface 10 of the second sub-color resist 5012 and the plane parallel to the substrate 1 is equal to the angle between the fourth inclined surface 20 of the second sub-color resist 5012 and the plane parallel to the substrate 1.

[0170] In some embodiments, as shown in Figures 8 to 10 and Figure 13, a second sub-color resist 5012 and a first sub-color resist 5011 are spaced apart from each other within a first opening 401.

[0171] In some embodiments, as shown in Figures 8 to 10 and Figure 13, two second sub-color resists 5012 located at intervals between the first openings 401 on both sides of the light-shielding layer 4.

[0172] Alternatively, in some embodiments, the edges of two second sub-color resists located on opposite sides of the first opening of the light-shielding layer are in contact.

[0173] Alternatively, in some embodiments, two second sub-color resists located on opposite sides of the first opening of the light-shielding layer overlap, i.e., one second sub-color resist covers a portion of the other second sub-color resist.

[0174] In some embodiments, among the plurality of sub-color resists included in the display panel, the angles between the sides of different second sub-color resists and the first surface may all be the same, or the angles between the sides of different second sub-color resists and the first surface may all be different, or the angles between the sides of different second sub-color resists and the first surface may not be completely identical. For example, the angles between the sides of second sub-color resists of different colors and the first surface may be the same; or the angles between the sides of second sub-color resists of different colors and the first surface may be different; or, among a plurality of first color resists, some second sub-color resists may have the same angle between their sides and the first surface, while the angles between the sides of the remaining second sub-color resists and the first surface may be different from the aforementioned partial angles between the sides of the second sub-color resists and the first surface. For example, when one opening corresponds to multiple second sub-color resists, the angles between the sides of the multiple second sub-color resists corresponding to one first opening are all the same. For example, the angle between the side of the second sub-color resist corresponding to one first opening and the angle between the side of the first sub-color resist and the first surface may be the same as the angle between the side of the first sub-color resist and the first surface.

[0175] In some embodiments, among the plurality of second sub-color resists included in the display panel, the thicknesses of the different second sub-color resists may all be the same, the thicknesses of the different second sub-color resists may all be different, or the thicknesses of the different second sub-color resists may not be completely the same. For example, the thicknesses of the second sub-color resists of different colors may be the same; the thicknesses of the second sub-color resists of different colors may be different; or some of the second sub-color resists of multiple colors may have the same thickness, while the thicknesses of the remaining second sub-color resists may be different from the thicknesses of the aforementioned partial second sub-color resists. For example, when one opening corresponds to multiple second sub-color resists, the thicknesses of the multiple second sub-color resists corresponding to one first opening may all be the same. For example, the thickness of the second sub-color resist corresponding to one first opening may be the same as the thickness of the first sub-color resist.

[0176] In some embodiments, the color of the first sub-color resist corresponding to a first opening is the same as the color of the second sub-color resist.

[0177] In some embodiments, as shown in Figures 8 to 10 and Figure 13, the cross-section of the second sub-color resist 5012 perpendicular to the plane of the substrate 1 is part of a trapezoid.

[0178] In some embodiments, as shown in Figures 8 to 10 and Figure 13, the cross-section of the second sub-color resist 5012 perpendicular to the plane of the substrate 1 is part of an isosceles trapezoid.

[0179] Alternatively, in some embodiments, the second sub-color resist has a cross-section in a semi-circular or other shape perpendicular to the plane of the substrate.

[0180] In some embodiments, as shown in Figures 1 and 3-13, the display panel further includes:

[0181] The planarization insulating layer 8 is located on the side of the light-shielding layer 4 and the first color resist 5 away from the substrate 1; the orthographic projection of the planarization insulating layer 8 onto the substrate 1 covers the orthographic projection of the light-shielding layer 4 and the first color resist 5 onto the substrate 1; the refractive index of the planarization insulating layer 8 is less than the refractive index of the first color resist 5.

[0182] In some embodiments, taking a first color resist of blue, a second color resist of green, and a third color resist of red as examples, the red color resist film has an average refractive index >1.65 in the 600 nm to 640 nm wavelength range, the green color resist has an average refractive index >1.65 in the 500 nm to 550 nm wavelength range, and the blue color resist has an average refractive index >1.65 in the 430 nm to 480 nm wavelength range. Therefore, the planarization insulating layer has an average refractive index <1.6 in the 380 nm to 780 nm wavelength range.

[0183] In practice, the planarization insulation layer is continuously installed across the entire surface. When there is a gap between the first color resist and the light-shielding layer, the planarization insulation layer also covers the gap between the first color resist and the light-shielding layer.

[0184] In some embodiments, as shown in Figures 1, 5, and 8, the planarization insulating layer 8 is a transparent insulating layer 802.

[0185] The display panel provided in this embodiment has a transparent insulating layer with a refractive index lower than that of the first color resist. Specifically, the transparent insulating layer with the lower refractive index covers the first color resist with the higher refractive index, and the transparent insulating layer covers the first slope of the first color resist. In this way, the first color resist and the transparent insulating layer form an efficiency enhancement structure (EES). The higher refractive index of the first slope of the first color resist is beneficial for improving the light emission efficiency at the positive viewing angle, thereby improving the luminous efficacy and brightness of the display panel.

[0186] Alternatively, in some embodiments, as shown in Figures 3, 4, 6, 7, 9, and 10, the planarization insulating layer 8 includes:

[0187] A non-transparent insulating layer 801 is provided, and its orthogonal projection on the substrate 1 covers the light-shielding layer 4 and the orthogonal projection of the first color resist 5 on the substrate 1. The non-transparent insulating layer 801 covers the first color resist 5, and the refractive index of the non-transparent insulating layer 801 is less than the refractive index of the first color resist 5.

[0188] The display panel provided in this embodiment has a non-transparent insulating layer with a refractive index lower than that of the first color resist. Specifically, the non-transparent insulating layer with the lower refractive index covers the first color resist with the higher refractive index, and the non-transparent insulating layer covers the first slope of the first color resist. This forms an EES structure with the first color resist and the non-transparent insulating layer. The higher refractive index of the first slope of the first color resist is beneficial for improving the light emission efficiency at the positive viewing angle, thereby improving the luminous efficacy and brightness of the display panel. Furthermore, the non-transparent insulating layer has a lower transmittance than the transparent insulating layer, and a higher light absorption rate than the transparent insulating layer. Using the non-transparent insulating layer allows for the absorption of more ambient light, thereby reducing the reflectivity of the display panel in the off state.

[0189] In some embodiments, the non-transparent insulating layer is a gray color film.

[0190] It should be noted that the spectral schematic diagram of a gray color filter provided in this embodiment is shown in Figure 26. Referring to Figure 26, it can be seen that the gray color filter spectrum exhibits transmittance troughs in the wavelength range of 480 nm to 530 nm and in the wavelength range of 580 nm to 630 nm. Thus, three transmittance peaks can be obtained at wavelengths of 380 nm to 480 nm, 480 nm to 580 nm, and 6300 nm to 780 nm. These three peaks correspond precisely to blue, green, and red light, thereby enabling the gray color filter to transmit all three colors of light. Therefore, when the non-transparent insulating layer is a gray color filter, while reducing reflection by setting the non-transparent insulating layer, it avoids excessively affecting the transmittance of blue, green, and red light.

[0191] In some embodiments, the refractive index of the non-transparent insulating layer is less than that of the first color resist. The average refractive index of the non-transparent insulating layer is <1.6 in the 380nm-780nm wavelength range.

[0192] In some embodiments, the non-transparent insulating layer is continuously provided across the entire surface.

[0193] In some embodiments, as shown in Figures 3, 4, 6, 7, 9, and 10, the non-transparent insulating layer 801 is in contact with the first color resist 5 and the light-shielding layer 4.

[0194] In some embodiments, as shown in Figures 3, 4, 6, 7, 9, and 10, when there is a gap between the first color resist 5 and the light-shielding layer 4 or between the sub-color resists 501, the planarization insulating layer also covers the gap.

[0195] In some embodiments, as shown in Figures 3, 6, and 9, the planarization insulating layer 8 includes only the non-transparent insulating layer 801.

[0196] In some embodiments, as shown in Figures 3, 6, and 9, the distance h3 between the surface of the non-transparent insulating layer 801 furthest from the substrate 1 and the surface of the first color resist 5 furthest from the substrate 1 is greater than or equal to 1 micrometer.

[0197] The first color filter 5 has a transmittance of 60% or more and less than or equal to 80% for light at the peak wavelength.

[0198] In some embodiments, as shown in Figures 3, 6, and 9, the non-transparent insulating layer 801 has a transmittance of 60% and 70% for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness.

[0199] Alternatively, in some embodiments, as shown in Figures 3, 6, and 9, the non-transparent insulating layer 801 has a transmittance of greater than or equal to 50% and less than or equal to 80% for light in the range of wavelengths greater than or equal to 380 nanometers and less than or equal to 780 nanometers in the region of its maximum thickness.

[0200] The display panel provided in this embodiment has a first color resist with a transmittance of 60% to 80% for light with a peak wavelength, thereby ensuring good light transmittance and thus providing the display panel with better light efficiency and display effect. The distance h3 between the surface of the non-transparent insulating layer furthest from the substrate 1 and the surface of the first color resist furthest from the substrate 1 is greater than or equal to 1 micrometer. Furthermore, the transmittance of the non-transparent insulating layer in its maximum thickness region for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers is greater than or equal to 60% and less than or equal to 70%, or the transmittance of the non-transparent insulating layer in its maximum thickness region for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers is greater than or equal to 50% and less than or equal to 80%. This ensures the planarization effect and reflectivity reduction effect of the non-transparent insulating layer while preventing the non-transparent insulating layer from excessively affecting light transmittance and thus the display effect.

[0201] It should be noted that when the non-transparent insulating layer covers the gap between the first color resist and the light-shielding layer, the area of ​​maximum thickness of the non-transparent insulating layer refers to the region from the bottom of the light-shielding layer to the top of the non-transparent insulating layer, which lies on the same plane. This region has a transmittance of 60% to 70% for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm. Alternatively, this region has a transmittance of 50% to 80% for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm.

[0202] In some embodiments, as shown in Figures 3, 6, and 9, the maximum thickness h4 of the non-transparent insulating layer 801 is greater than or equal to 3 micrometers and less than or equal to 6 micrometers. This ensures that the light transmittance of the non-transparent insulating layer 801 meets the aforementioned requirements while maintaining its planarization effect. The maximum thickness h4 of the non-transparent insulating layer 801 is the distance from the surface of the non-transparent insulating layer 801 away from the substrate 1 to the encapsulation layer 3.

[0203] Alternatively, in some embodiments, as shown in FIG4, FIG7, and FIG10, the planarization insulating layer 8 further includes:

[0204] A transparent insulating layer 802 is located on the side of the non-transparent insulating layer 801 that is away from the substrate 1; the transmittance of the transparent insulating layer 802 is greater than that of the non-transparent insulating layer 801.

[0205] It should be noted that the thicker the non-transparent insulating layer, the lower its transmittance. The display panel provided in this embodiment first uses a non-transparent insulating layer to fill the gap between the first color resist and the light-shielding layer, and then uses a transparent insulating layer for planarization. This allows for reducing the reflectivity of the display panel in the off state while avoiding excessive impact on transmittance.

[0206] In some embodiments, as shown in Figures 4, 7, and 10, the maximum thickness of the non-transparent insulating layer 801 is greater than or equal to 2 micrometers and less than or equal to 4 micrometers.

[0207] The thickness h5 of the transparent insulating layer 802 is greater than or equal to 2 micrometers and less than or equal to 4 micrometers;

[0208] The first color resist 5 has a transmittance of 50% or more and less than or equal to 70% for light with a peak wavelength; the non-transparent insulating layer 801 has a transmittance of 50% or more and less than or equal to 70% for light with a wavelength greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness.

[0209] The display panel provided in this embodiment has a first color resist 5 with a transmittance of 50% to 70% for light with a peak wavelength, thereby ensuring good light transmittance and resulting in better light efficiency and display effect. The maximum thickness of the non-transparent insulating layer 801 is greater than or equal to 2 micrometers and less than or equal to 4 micrometers. In the region of its maximum thickness, the transmittance of the non-transparent insulating layer 801 for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers is greater than or equal to 50% and less than or equal to 70%, thus ensuring the reflectivity reduction effect of the non-transparent insulating layer while avoiding excessive influence of the non-transparent insulating layer on light transmittance and thus affecting the display effect. Furthermore, the thickness h5 of the transparent insulating layer is greater than or equal to 2 micrometers and less than or equal to 4 micrometers, ensuring a planarization effect.

[0210] In some embodiments, the non-transparent insulating layer is an organic resin with added carbon black or colored pigments. Specifically, the transparent insulating layer is made of organic resin. Adding carbon black or colored pigments to the organic resin can make the film layer non-transparent. For example, adding carbon black to the organic resin can make the formed non-transparent insulating layer gray. Alternatively, adding colored pigments to the organic resin can make the formed non-transparent insulating layer a neutral color such as light purple.

[0211] It should be noted that the reflectivity of the non-transparent insulating layer with added carbon black or colored pigments is usually higher than that of the first color resist. If the scheme of reducing the size of the first color resist 5 as shown in Figures 3 and 4 is adopted, the distance between the first color resist 5 and the edge of the light-shielding layer 4 is large. Within the first opening, the area with only the non-transparent insulating layer 801 and no first color resist 5 is large, which will lead to a deterioration in reflectivity. However, as shown in Figures 6, 7, 9, and 10, the first color resist 5 is divided into multiple sub-color resists 501. Within the first opening, the area with only the non-transparent insulating layer 801 and no first color resist 5 is reduced, which can reduce the possibility of reflectivity deterioration.

[0212] In some embodiments, as shown in Figures 11-13, the planarization insulating layer 8 includes:

[0213] A transparent insulating layer 802; the surface of the transparent insulating layer 802 facing away from the substrate 1 includes a plurality of grooves 8-1; the depth of the grooves 8-1 is less than the thickness of the transparent insulating layer 802;

[0214] The display panel also includes:

[0215] Multiple second color resists 9 are located in the groove 8-1; the area of ​​the second color resist 9 in the orthographic projection of the substrate 1 overlaps with the area between the light-shielding layer 4 and the first color resist 5 in the orthographic projection of the substrate 1.

[0216] The display panel provided in this embodiment forms a groove on the surface of a transparent insulating layer and a second color resist is disposed in the groove. The second color resist overlaps with the area between the light-shielding layer and the first color resist in the orthogonal projection of the substrate. This reduces the area without color resist in the corresponding area within the first opening, fills the gap in the area without color resist within the first opening, avoids reflectivity deterioration, and improves light extraction efficiency.

[0217] In some embodiments, as shown in Figures 11-13, the planarization insulating layer 8 comprises only a transparent insulating layer 802. This allows for the avoidance of reflectivity degradation and the improvement of light extraction efficiency without the need for additional materials.

[0218] In some embodiments, the thickness of the transparent insulating layer is greater than or equal to 3 micrometers and less than or equal to 7 micrometers. This allows for improved planarization of the film layer above the first color resist while providing sufficient thickness space to form a groove for the second color resist on the transparent insulating layer.

[0219] In some embodiments, as shown in Figures 11 to 13, the thickness of the second color resist 9 is less than or equal to the thickness of the first color resist 5. Figure 11 illustrates an example where the thickness of the second color resist 9 is less than the thickness of the first color resist 5.

[0220] In some embodiments, as shown in Figures 11 to 13, the second color resist 9 and the first color resist 5 corresponding to the same first opening 401 are color resists of the same color.

[0221] In some embodiments, as shown in Figures 11 to 13, the plurality of second color resists 9 include: a plurality of first color second color resists 901, a plurality of second color second color resists 902, and a plurality of third color second color resists 903.

[0222] The first color second color resist 901 corresponds to the first color first color resist 5-1;

[0223] The first color second color resistor 901 and the first color first color resistor 5-1 are the same color resistors; the second color second color resistor 902 and the first color first color resistor 5-2 are the same color resistors; and the third color second color resistor 903 and the first color first color resistor 5-3 are the same color resistors.

[0224] In some embodiments, as shown in Figures 11 to 13, the area of ​​the surface of the second color resist 9 away from the substrate 1 is greater than the area of ​​the surface of the second color resist 9 close to the substrate 1, and the cross-section of the second color resist 9 perpendicular to the plane of the substrate 1 is trapezoidal.

[0225] In some embodiments, as shown in Figures 11 to 13, the cross-section of the second color resist 9 in the plane perpendicular to the substrate 1 is an isosceles trapezoid.

[0226] Alternatively, in some embodiments, the second color resist 9 has a cross-section in a semi-circular or other shape perpendicular to the plane of the substrate.

[0227] In some embodiments, the side of the second color resist is an inclined surface. The angle between the inclined surface of the second color resist and the surface of the second color resist away from the substrate is defined as the first angle. Among the multiple second color resists included in the display panel, the first angles of the different second color resists may all be the same, the first angles of the different second color resists may all be different, or the first angles of the different second color resists may not be completely the same. For example, the first angles of the second color resists of different colors may be the same; the first angles of the second color resists of different colors may be different; or some of the multiple second color resists may have the same first angle, while the first angles of the remaining second color resists may be different from the first angles of the aforementioned partial second color resists. For example, when one first opening corresponds to multiple second color resists, the first angles of the multiple second color resists corresponding to one opening are the same.

[0228] In some embodiments, the display panel includes a plurality of second color resists, which may all have the same thickness, or all have different thicknesses, or the different second color resists may not have completely identical thicknesses. For example, the second color resists of different colors may have the same thickness; the second color resists of different colors may have different thicknesses; or some of the multiple second color resists may have the same thickness, while the thickness of the remaining second color resists may be different from the thickness of the aforementioned partial second color resists. For example, when one first opening corresponds to multiple second color resists, the multiple second color resists corresponding to one opening may have the same thickness.

[0229] In some embodiments, as shown in FIG11, the orthogonal projection of the second color resist 9 onto the substrate 1 covers the area between the light-shielding layer 4 and the first color resist 5 onto the substrate 1.

[0230] It should be noted that Figure 11 uses the first color resist as a complete pattern as an example for illustration. Of course, in some embodiments, as shown in Figures 12 and 13, when the first color resist 5 includes multiple sub-color resists 5, the area between adjacent sub-color resists 501 within the first opening 401 also belongs to the area between the light-shielding layer 4 and the first color resist 5. That is, the orthographic projection of the second color resist 9 on the substrate 1 overlaps with the orthographic projection of the area between the light-shielding layer 4 and the sub-color resist 501 on the substrate 1, and / or, the orthographic projection of the second color resist 9 on the substrate 1 overlaps with the orthographic projection of the area between adjacent sub-color resists 501 on the substrate 1.

[0231] In some embodiments, the maximum thickness of the light-shielding layer is less than the maximum thickness of the first color resist.

[0232] In some embodiments, the maximum thickness of the light-shielding layer is greater than or equal to 1 micrometer and less than or equal to 1.5 micrometers, and the maximum thickness of the first color resist is greater than or equal to 2 micrometers and less than or equal to 4 micrometers.

[0233] The display panel provided in this embodiment has a maximum thickness of 1 micrometer and less than or equal to 1.5 micrometers for the light-shielding layer. This ensures the light-shielding effect of the light-shielding layer on the area between adjacent sub-pixels while reducing the manufacturing difficulty of the light-shielding layer. The maximum thickness of the first color resist is greater than or equal to 2 micrometers and less than or equal to 4 micrometers, which avoids excessively affecting the light transmittance while reducing the manufacturing difficulty of the first color resist.

[0234] In some embodiments, as shown in Figures 14 to 21, at least a portion of the first inclined surface 10 and the first surface 12 of the first color resist 5 on the side near the substrate 1 have an obtuse angle α1.

[0235] It should be noted that the angle α1 between all the first inclined surfaces 10 of the first color resist 5 and the first surface 12 of the first color resist 5 on the side closer to the substrate 1 in Figures 14 to 21 is an obtuse angle. All the first inclined surfaces 10 of the first color resist 5 refer to all the inclined surfaces of the first color resist 5 that are located within the first opening 401 and do not contact the light-shielding layer 4.

[0236] In some embodiments, as shown in Figures 14 to 21, the display panel further includes: a plurality of first light-transmitting portions 13; the refractive index of the first light-transmitting portions 13 is less than the refractive index of the first color resist 5;

[0237] The first light-transmitting part 13 is in contact with the light-shielding layer 4, and the orthographic projection of the first light-transmitting part 13 on the substrate 1 overlaps with the orthographic projection of the first opening 401 on the substrate 1.

[0238] The first light-transmitting portion 13 includes: a second inclined surface 1301; the orthographic projection of the second inclined surface 1301 onto the substrate 1 is located within the orthographic projection of the first opening 401 onto the substrate 1; the first light-transmitting portion 13 also includes: a third surface 1302 and a fourth surface 1303 parallel to the plane of the substrate 1; the second inclined surface 1301 is a side surface connecting the third surface 1302 and the fourth surface 1303 within the first opening 401; the fourth surface 1303 is located on the side of the third surface 1302 facing away from the substrate 1;

[0239] The first inclined surface 10 is in contact with the second inclined surface 1301; the angle between the second inclined surface 1301 and the third surface 1302 is an acute angle, and the angle α1 between the first inclined surface 10, which is in contact with the second inclined surface 1301, and the first surface 12 is an obtuse angle.

[0240] In the display panel provided in this embodiment, when the angle α1 between the first inclined surface and the first surface of the first color resist near the substrate is obtuse, and the first inclined surface is in contact with the second inclined surface, the first inclined surface is located above the second inclined surface, that is, a portion of the first color resist is located above the first light-transmitting portion. The refractive index of the first color resist is greater than the refractive index of the first light-transmitting portion, that is, from bottom to top, there are low refractive index film layers and high refractive index film layers. In this way, the first light-transmitting portion and the first color resist form an enhancing lens structure, thereby enabling the display panel provided in this embodiment to achieve an efficiency enhancement structure (EES). Specifically, light incident on the first color resist and reaching the first inclined surface with an angle greater than the critical angle can undergo total internal reflection, causing the side-emitted light to be deflected and emitted in the forward direction, improving luminous efficiency and increasing the emitted brightness. Furthermore, the first color resist serves as a high-refractive-index film layer in the EES structure, while the first light-transmitting part located on the same side of the film layer serves as a low-refractive-index film layer. This combines the COE structure with the EES structure, eliminating the need to set up an EES structure between other film layers in the display panel. It also avoids excessively increasing the thickness of the display panel, thus saving costs.

[0241] In some embodiments, as shown in Figures 14 to 17, the first light-transmitting portion 13 is located on the side of the light-shielding layer 4 facing away from the substrate 1, and the first light-transmitting portion 13 covers the side of the light-shielding layer 4 facing the first opening 401. That is, in a specific implementation, the pattern of the light-shielding layer 4 is formed first, and then the pattern of the first light-transmitting portion 13 is formed.

[0242] In some embodiments, as shown in Figures 14 and 15, the first light-transmitting portions 13 corresponding to two adjacent first openings 401 are disconnected from each other.

[0243] In some embodiments, as shown in Figures 14 and 15, the first color resist 5 includes a fifth inclined side surface 22 located outside the first opening 401. The fifth inclined side surface 22 is not part of the first inclined surface.

[0244] In some embodiments, as shown in Figures 14 and 15, the first color resist 5 covers the side surface of the first light-transmitting portion 13 and the fourth surface 1303 of the first light-transmitting portion 13.

[0245] In some embodiments, as shown in Figures 14 and 15, the side of the first light-transmitting portion 13 outside the first opening 401 is a sixth inclined surface 21; that is, the side of the first light-transmitting portion 13 connecting the third surface 1302 and the fourth surface 1303 is divided into a second inclined surface 1301 inside the first opening 401 and a side outside the first opening 401, which is the sixth inclined surface 21; the first color resist 5 covers the sixth inclined surface 21, the second inclined surface 1301, and the fourth surface 1303 of the first light-transmitting portion 13. The surface of the first color resist 5 that contacts the sixth inclined surface 21 is also an inclined surface, but this inclined surface is outside the first opening 401 and is not part of the first inclined surface.

[0246] Alternatively, in some embodiments, as shown in Figures 16 and 17, the first light-transmitting portions 13 corresponding to two adjacent first openings 401 are integrally connected. This reduces the manufacturing difficulty of the first light-transmitting portions. That is, the integrally connected first light-transmitting portion 13 corresponding to two adjacent first openings 401 completely covers the light-shielding layer 4; the first light-transmitting portion 13 covers the side of the light-shielding layer 4 and the surface of the light-shielding layer 4 facing away from the substrate 1; the first color resist 5 is in contact with the first light-transmitting portion 13, but the first color resist 5 is not in contact with the light-shielding layer 4. If all areas of the inclined side of the integrally connected first light-transmitting portion 13 corresponding to two adjacent first openings 401 are located within the first opening 401, then the inclined side of the first light-transmitting portion 13 is a second inclined surface 1301.

[0247] In some embodiments, as shown in Figures 16 and 17, the first color resist 5 includes a fifth inclined side surface 22 located outside the first opening 401. The fifth inclined side surface 22 is not part of the first inclined surface.

[0248] In some embodiments, as shown in Figures 14 to 17, the distance between the two first color filters 5 corresponding to two adjacent first openings 401 is greater than 0.

[0249] Alternatively, in some embodiments, the edges of the two first color resistors corresponding to two adjacent first openings are in contact.

[0250] Alternatively, in some embodiments, the two first color resistors corresponding to two adjacent first openings overlap, that is, one of the first color resistors covers a portion of the area of ​​the other first color resistor.

[0251] Alternatively, in some embodiments, as shown in Figures 18-21, the light-shielding layer 4 is located on the side of the first light-transmitting portion 13 that faces away from the substrate 1. That is, in specific implementations, the pattern of the first light-transmitting portion 13 is formed first, and then the pattern of the light-shielding layer 4 is formed.

[0252] It should be noted that if, as shown in Figures 14-17, the pattern of the light-shielding layer 4 is formed first, followed by the pattern of the first light-transmitting portion 13, then the light-shielding layer 4 is in contact with the encapsulation layer 3. If, as shown in Figures 18-21, the pattern of the first light-transmitting portion 13 is formed first, followed by the pattern of the light-shielding layer 4, then the first light-transmitting portion 13 is in contact with the encapsulation layer 3. In specific implementations, the film layer in contact with the encapsulation layer can be selected based on the required material of the light-shielding layer, the adhesion between the material of the first light-transmitting portion and the encapsulation layer, and the film layer itself. Specifically, a film layer with higher adhesion is selected to contact the encapsulation layer, thereby avoiding film peeling due to poor adhesion. That is, if the material of the light-shielding layer has stronger adhesion to the encapsulation layer, the light-shielding layer is formed first, followed by the first light-transmitting portion. If the material of the first light-transmitting portion has stronger adhesion to the encapsulation layer, the first light-transmitting portion is formed first, followed by the light-shielding layer.

[0253] In some embodiments, as shown in Figures 18-19, the distance between the surface of the first color resist 5 facing away from the substrate 1 and the substrate 1 is greater than the distance between the surface of the light shielding layer 4 facing away from the substrate 1 and the substrate 1.

[0254] The first color resist 5 in the orthographic projection on the substrate 1 overlaps with the side of the light-shielding layer 4 facing the first opening 401 in the orthographic projection on the substrate 1.

[0255] That is, when the light-shielding layer is located on the side of the first light-transmitting layer away from the substrate, and the maximum thickness of the first color resist is greater than the total thickness of the light-shielding layer and the first light-transmitting layer, the first color resist covers the side of the light-shielding layer.

[0256] In some embodiments, as shown in Figures 18-19, the first color resist 5 covers the side of the first light-transmitting portion 13 and the side of the light-shielding layer 4; the first color resist 5 also covers a portion of the surface of the light-shielding layer 4 facing away from the substrate 1.

[0257] In some embodiments, as shown in Figures 18 and 19, the width of the surface of the light-shielding layer 4 facing the substrate 1 is less than or equal to the width of the fourth surface 1303.

[0258] The projection of the light-shielding layer 4 onto the substrate 1 falls within the projection of the fourth surface 1303 onto the substrate 1.

[0259] In some embodiments, as shown in Figures 18 and 19, the first color resist 5 further includes a seventh inclined side surface 23 that contacts the side surface of the light-shielding layer 4. The seventh inclined side surface 23 is located outside the first opening 401 and is not part of the first inclined surface.

[0260] In some embodiments, as shown in Figures 18 and 19, the first color resist 5 includes a fifth inclined side surface 22 located outside the first opening 401. The fifth inclined side surface 22 is not part of the first inclined surface.

[0261] In some embodiments, as shown in Figures 20 and 21, the distance between the surface of the first color resist 5 facing away from the substrate 1 and the substrate 1 is less than the distance between the surface of the light shielding layer 4 facing away from the substrate 1 and the substrate 1.

[0262] The orthographic projection of the first color resist 5 onto the substrate 1 and the orthographic projection of the side of the light-shielding layer 4 facing the first opening 401 onto the substrate 1 do not overlap.

[0263] In some embodiments, as shown in Figures 20 and 21, the first color resist 5 covers a portion of the fourth surface 1303.

[0264] Alternatively, in some embodiments, the first color resist and the fourth surface may not overlap in their orthogonal projections onto the substrate, that is, the first color resist overlaps with the first light-transmitting portion on the side of the first light-transmitting portion.

[0265] In some embodiments, as shown in Figures 20 and 21, the first surface 12 further includes a portion that contacts the fourth surface 1303 of the first light-transmitting portion 13; the side of the first color resist 5 that connects the first surface 12 and the second surface 11 is located within the first opening 401, so the side of the first color resist 5 that connects the first surface 12 and the second surface 11 is also the first inclined surface 10.

[0266] The angle α1 between the side of the first surface 12 and the second surface 11 of the first color resist 5 and the first surface 12 is an acute angle.

[0267] In some embodiments, as shown in Figures 20 and 21, the distance between the edge of the first color resist 5 and the edge of the light-shielding layer 4 is greater than 0.

[0268] Alternatively, in some embodiments, the first color resist 5 may not overlap with the orthographic projection of the substrate 1 and the side of the light-shielding layer 4 facing the first opening 401 in the orthographic projection of the substrate 1 in a certain area, or they may overlap in a certain area; or, the first color resist 5 may be in contact with the side of the light-shielding layer 4 facing the first opening 401 in the orthographic projection of the substrate 1 in a certain area.

[0269] Alternatively, in some embodiments, as shown in Figures 22 and 23, the edge of the first color resist 5 is adjacent to the edge of the light-shielding layer 4. For example, the bottom edge of the first color resist 5 near the substrate 1 is shared with the bottom edge endpoint of the light-shielding layer 4 near the substrate 1. For example, the portion of the edge of the first color resist 5 adjacent to the edge of the light-shielding layer 4 is located above the fourth surface 1303 of the first light-transmitting portion 13.

[0270] In some embodiments, as shown in Figures 22 and 23, the first surface 12 further includes a portion that contacts the fourth surface 1303 of the first light-transmitting portion 13; the side of the first color resist 5 that connects the first surface 12 and the second surface 11 is located within the first opening 401, so the side of the first color resist 5 that connects the first surface 12 and the second surface 11 is also the first inclined surface 10.

[0271] The angle α1 between the side of the first surface 12 and the second surface 11 of the first color resist 5 and the first surface 12 is an acute angle.

[0272] In some embodiments, as shown in Figures 14 to 23, the distance between the surface of the first color resist 5 facing away from the substrate 1 and the substrate 1 is greater than the distance between the surface of the first light-transmitting portion 13 facing away from the substrate 1 and the substrate 1. That is, the maximum thickness of the first color resist needs to be greater than the maximum thickness of the first light-transmitting portion.

[0273] In some embodiments, the maximum thickness of the light-shielding layer is greater than or equal to 1 micrometer and less than or equal to 1.5 micrometers, the maximum thickness of the first light-transmitting portion is greater than or equal to 1.5 micrometers and less than or equal to 2.5 micrometers, and the maximum thickness of the first color resist is greater than or equal to 2.5 micrometers and less than or equal to 4.5 micrometers.

[0274] In some embodiments, the first light-transmitting portion is a gray colored film.

[0275] It should be noted that, referring to the spectral diagram of a gray color filter provided in this embodiment of the present disclosure shown in Figure 26, the gray color filter spectrum exhibits transmittance troughs in the wavelength range of 480 nm to 530 nm and in the wavelength range of 580 nm to 630 nm. Thus, three transmittance peaks can be obtained at wavelengths of 380 nm to 480 nm, 480 nm to 580 nm, and 6300 nm to 780 nm. These three peaks correspond precisely to blue, green, and red light, thereby enabling the gray color filter to transmit all three colors of light. Therefore, when the first light-transmitting part is a gray color filter, while forming an EES structure with the first color resist, the first light-transmitting part can avoid excessively affecting the transmittance of blue, green, and red light.

[0276] In some embodiments, the first light-transmitting portion is an organic resin to which carbon black or a colored pigment has been added. For example, adding carbon black to the organic resin can make the formed opaque insulating layer gray. Alternatively, adding a colored pigment to the organic resin can make the formed opaque insulating layer a neutral color such as light purple.

[0277] In some embodiments, as shown in Figures 14 to 17, the shape of the cross section of the first light-transmitting portion 13 in the direction perpendicular to the substrate 1 is part of a trapezoid.

[0278] In some embodiments, as shown in Figures 14 to 17, the shape of the cross section of the first light-transmitting portion 13 in the direction perpendicular to the substrate 1 is a part of an isosceles trapezoid with a shorter upper base and a longer lower base.

[0279] Alternatively, as shown in Figures 17 to 23, the shape of the cross section of the first light-transmitting portion 13 in the direction perpendicular to the substrate 1 is trapezoidal.

[0280] In some embodiments, as shown in Figures 17 to 23, the shape of the cross section of the first light-transmitting portion 13 in the direction perpendicular to the substrate 1 is an isosceles trapezoid with a short upper base and a long lower base.

[0281] In some embodiments, as shown in Figures 14 to 23, the planarization insulating layer 8 includes a transparent insulating layer 802.

[0282] It should be noted that Figures 14 to 23 illustrate the case where the planarized insulating layer 8 is a transparent insulating layer 802. When the planarized insulating layer is a transparent insulating layer, the first light-transmitting portion, in its maximum thickness region, has a transmittance of greater than or equal to 50% and less than or equal to 80% for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm. This avoids the first light-transmitting portion excessively affecting the transmittance of the display panel while forming an EES structure with the first color resist through the first light-transmitting portion.

[0283] Alternatively, in some embodiments, the planarization insulating layer is a non-transparent insulating layer. The transmittance of the non-transparent insulating layer at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a first transmittance. The transmittance of the first light-transmitting portion at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a second transmittance. The sum of the first and second transmittances is greater than or equal to 50% and less than or equal to 80%. This avoids excessive influence of the first light-transmitting portion and the non-transparent insulating layer on the transmittance of the display panel while simultaneously forming an EES structure through the first light-transmitting portion and the first color resist.

[0284] Alternatively, in some embodiments, the planarization insulating layer includes a non-transparent insulating layer and a transparent insulating layer located on the side of the non-transparent insulating layer facing away from the substrate. The transmittance of the non-transparent insulating layer at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a first transmittance, and the transmittance of the first light-transmitting portion at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a second transmittance. The sum of the first and second transmittances is greater than or equal to 50% and less than or equal to 80%. This avoids excessive influence of the first light-transmitting portion and the non-transparent insulating layer on the transmittance of the display panel while forming an EES structure through the first light-transmitting portion and the first color resist.

[0285] In some embodiments, when the display panel includes both a first light-transmitting portion and a non-transparent insulating layer, the materials of the two portions may be the same.

[0286] In some embodiments, the angle between the second inclined surface and the third surface of the first light-transmitting portion is greater than or equal to 50° and less than or equal to 80°. This can improve the forward light emission efficiency of the cross-sections reaching the second inclined surface and the first inclined surface, thereby improving the light efficiency of the display panel and enhancing the display effect.

[0287] In some embodiments, in order to simplify the manufacturing of the first light-transmitting part, the included angle between the side surface of the first light-transmitting part and the third surface is greater than or equal to 50° and less than or equal to 80°.

[0288] In some embodiments, when the first color resist further includes a portion that overlaps with the orthographic projection of the light-shielding layer, the angle between the side of the first color resist and the plane parallel to the substrate is greater than or equal to 50° and less than or equal to 80°.

[0289] In some embodiments, as shown in FIG14, the first color resist 5 has an inclined surface including: an inclined surface in contact with the side of the first light-transmitting portion 13 and a fifth inclined side surface 22; the inclined surface of the first color resist 5 in contact with the side of the first light-transmitting portion 13 and located within the first opening 401 is the first inclined surface 10; the inclined surface of the first color resist 5 in contact with the side of the first light-transmitting portion 13 and located outside the first opening 401, namely the sixth inclined surface 21, is not part of the first inclined surface, and the fifth inclined side surface 22 is also not part of the first inclined surface. The angle α1 between the first inclined surface 10 and the first surface 12 is an obtuse angle.

[0290] In some embodiments, as shown in FIG16, the first color resist 5 has an inclined surface including: an inclined surface in contact with the side of the first light-transmitting portion 13 and a fifth inclined side surface 22; the inclined surfaces of the first color resist 5 in contact with the side of the first light-transmitting portion 13 are all located within the first opening 401, so the inclined surfaces of the first color resist 5 in contact with the side of the first light-transmitting portion 13 are all the first inclined surfaces 10; the fifth inclined side surface 22 is not part of the first inclined surfaces. The angle α1 between the first inclined surface 10 and the first surface 12 is an obtuse angle.

[0291] In some embodiments, as shown in FIG18, the first color resist 5 has an inclined surface including: an inclined surface in contact with the side of the first light-transmitting portion 13, a seventh inclined side surface 23 in contact with the side of the light-shielding layer 4, and a fifth inclined side surface 22; the inclined surface of the first color resist 5 in contact with the side of the first light-transmitting portion 13 is located within the first opening 401, so the inclined surface of the first color resist 5 in contact with the side of the first light-transmitting portion 13 is the first inclined surface 10; the seventh inclined side surface 23 and the fifth inclined side surface 22 are not part of the first inclined surface. The angle α1 between the first inclined surface 10 and the first surface 12 is an obtuse angle.

[0292] In some embodiments, as shown in Figures 20 and 22, the first color resist 5 has an inclined surface including: an inclined surface that contacts the side of the first light-transmitting portion 13, and a side surface of the first color resist 5 connecting the first surface 12 and the second surface 11; the inclined surface of the first color resist 5 that contacts the side of the first light-transmitting portion 13 is located within the first opening 401, and thus the inclined surface of the first color resist 5 that contacts the first light-transmitting portion 13 is the first inclined surface 10; the side surface of the first color resist 5 that connects the first surface 12 and the second surface 11 is located within the first opening 401, that is, the side surface of the first color resist 5 that connects the first surface 12 and the second surface 11 is also the first inclined surface 10. All inclined surfaces of the first color resist 5 are first inclined surfaces 10. The angle α1 between the first inclined surface 10 that contacts the second inclined surface 1301 of the first light-transmitting portion 13 and the first surface 12 is an obtuse angle, and the angle α1 between the first inclined surface 10 that connects the first surface 12 and the second surface 11 and the first surface 12 is an acute angle.

[0293] In some embodiments, as shown in Figures 15, 17, 19, 21, and 23-25, the display panel further includes:

[0294] Multiple second light-transmitting portions 14; the refractive index of the second light-transmitting portions 14 is less than the refractive index of the first color resist 5; the second light-transmitting portions 14 are located between the first color resist 5 and the encapsulation layer 3, and the orthogonal projection of the second light-transmitting portions 14 onto the substrate 1 falls within the orthogonal projection of the first opening 401 onto the substrate 1.

[0295] The display panel provided in this embodiment further includes a second light-transmitting portion located between the first color resist and the encapsulation layer. The refractive index of the second light-transmitting portion is lower than that of the first color resist, i.e., from bottom to top, it consists of a low-refractive-index film layer and a high-refractive-index film layer. Thus, the second light-transmitting portion and the first color resist form an EES structure. Specifically, light incident on the first color resist and reaching the first inclined surface with an angle greater than the critical angle can undergo total internal reflection, causing the side-emitted light to be deflected and emitted in the forward direction, improving luminous efficiency and increasing brightness. Furthermore, the arrangement of the second light-transmitting portion can increase the number of inclined first inclined surfaces, allowing more side light to be emitted in the forward direction, further improving luminous efficiency and increasing brightness.

[0296] In some embodiments, as shown in Figures 15, 17, 19, 21, and 23-25, the second light-transmitting portion 14 includes: a fifth surface 1402 and a sixth surface 1403 parallel to the plane of the substrate 1, and a third inclined surface 1401 connecting the fifth surface 1402 and the sixth surface 1403; the sixth surface 1403 is located on the side of the fifth surface 1402 away from the substrate 1.

[0297] The first inclined plane 10 is in contact with the third inclined plane 1401.

[0298] In some embodiments, as shown in Figures 15, 17, 19, 21, and 23-25, the angle between the third inclined surface 1401 and the fifth surface 1402 is an acute angle, and correspondingly, the angle α1 between the first inclined surface 10, which is in contact with the third inclined surface 1401, and the first surface 12 is an obtuse angle.

[0299] In some embodiments, as shown in Figures 15, 17, 19, 21, and 23 to 25, the shape of the cross section of the second light-transmitting portion 14 in the direction perpendicular to the substrate 1 is trapezoidal.

[0300] In some embodiments, as shown in Figures 17 to 23, the shape of the cross section of the second light-transmitting portion 14 in the direction perpendicular to the substrate 1 is a trapezoid with a short upper base and a long lower base.

[0301] In some embodiments, as shown in Figures 17 to 23, the shape of the cross section of the second light-transmitting portion 14 in the direction perpendicular to the substrate 1 is an isosceles trapezoid with a short upper base and a long lower base.

[0302] In some embodiments, as shown in Figures 15, 17, 19, 21, and 23-25, a second light-transmitting portion 14 is provided within a first opening 401.

[0303] Alternatively, multiple second light-transmitting portions can be arranged within a first opening. The distance between the edges of the fifth surfaces of the multiple second light-transmitting portions arranged within a first opening is greater than or equal to 0.

[0304] In some embodiments, as shown in Figures 15, 17, 19, 21, and 23, a first light-transmitting portion 13 and a second light-transmitting portion 14 may be simultaneously provided in an area of ​​a first opening in the display panel.

[0305] In some embodiments, as shown in FIG15, the first color resist 5 has an inclined surface including: an inclined surface in contact with the side of the first light-transmitting portion 13, an inclined surface in contact with the side of the second light-transmitting portion 14, i.e., the third inclined surface 1401, and a fifth inclined side surface 22; the inclined surfaces of the first color resist 5 in contact with the side of the second light-transmitting portion 14 are all first inclined surfaces 10; the inclined surface of the first color resist 5 in contact with the side of the first light-transmitting portion 13 and located within the first opening 401 is the first inclined surface 10; the inclined surface of the first color resist 5 in contact with the side of the first light-transmitting portion 13 and located outside the first opening 401, i.e., the sixth inclined surface 21, is not a first inclined surface, and the fifth inclined side surface 22 is also not a first inclined surface. The angle α1 between the first inclined surface 10 in contact with the third inclined surface 1401 of the second light-transmitting portion 14 and the first surface 12 is an obtuse angle, and the angle α1 between the first inclined surface 10 in contact with the second inclined surface 1301 of the first light-transmitting portion 13 and the first surface 12 is an obtuse angle.

[0306] In some embodiments, as shown in FIG17, the first color resist 5 has an inclined surface including: an inclined surface in contact with the side of the first light-transmitting portion 13, an inclined surface in contact with the side of the second light-transmitting portion 14, i.e., the third inclined surface 1401, and a fifth inclined side surface 22; the inclined surfaces of the first color resist 5 in contact with the side of the second light-transmitting portion 14 are all first inclined surfaces 10; the inclined surfaces of the first color resist 5 in contact with the side of the first light-transmitting portion 13 are all located within the first opening 401, therefore the inclined surfaces of the first color resist 5 in contact with the side of the first light-transmitting portion 13 are all first inclined surfaces 10; the fifth inclined side surface 22 is not a first inclined surface. The angle α1 between the first inclined surface 10 in contact with the third inclined surface 1401 of the second light-transmitting portion 14 and the first surface 12 is an obtuse angle, and the angle α1 between the first inclined surface 10 in contact with the second inclined surface 1301 of the first light-transmitting portion 13 and the first surface 12 is also an obtuse angle.

[0307] In some embodiments, as shown in FIG19, the first color resist 5 has an inclined surface including: an inclined surface in contact with the side of the first light-transmitting portion 13, an inclined surface in contact with the side of the second light-transmitting portion 14 (i.e., the third inclined surface 1401), a seventh inclined side surface 23 in contact with the side of the light-shielding layer 4, and a fifth inclined side surface 22; the inclined surface in contact with the side of the second light-transmitting portion 14 of the first color resist 5 is the first inclined surface 10; the inclined surface in contact with the side of the first light-transmitting portion 13 of the first color resist 5 is located within the first opening 401, so the inclined surface in contact with the side of the first light-transmitting portion 13 of the first color resist 5 is the first inclined surface 10; the seventh inclined side surface 23 and the fifth inclined side surface 22 are not part of the first inclined surface. The angle α1 between the first inclined surface 10 in contact with the third inclined surface 1401 of the second light-transmitting portion 14 and the first surface 12 is an obtuse angle, and the angle α1 between the first inclined surface 10 in contact with the second inclined surface 1301 of the first light-transmitting portion 13 and the first surface 12 is also an obtuse angle.

[0308] In some embodiments, as shown in Figures 21 and 23, the first color resist 5 has an inclined surface including: an inclined surface in contact with the side of the first light-transmitting portion 13, an inclined surface in contact with the side of the second light-transmitting portion 14 (i.e., the third inclined surface 1401), and the side of the first color resist 5 connecting the first surface 12 and the second surface 11; the inclined surface of the first color resist 5 in contact with the side of the second light-transmitting portion 14 is the first inclined surface 10; the inclined surface of the first color resist 5 in contact with the side of the first light-transmitting portion 13 is located within the first opening 401, thus the inclined surface of the first color resist 5 in contact with the first light-transmitting portion 13 is the first inclined surface 10; the side of the first color resist 5 connecting the first surface 12 and the second surface 11 is located within the first opening 401, that is, the side of the first color resist 5 connecting the first surface 12 and the second surface 11 is also the first inclined surface 10. The first color resist 5 has an inclined surface of the first inclined surface 10. The angle α1 between the first inclined surface 10, which contacts the third inclined surface 1401 of the second light-transmitting part 14, and the first surface 12 is an obtuse angle. The angle α1 between the first inclined surface 10, which contacts the second inclined surface 1301 of the first light-transmitting part 13, and the first surface 12 is an obtuse angle. The angle α1 between the first inclined surface 10 and the first surface 12, which connects the first surface 12 and the second surface 11, is an acute angle.

[0309] Alternatively, in some embodiments, as shown in Figures 24 and 25, a second light-transmitting portion 14 may be provided in an area of ​​a first opening in the display panel, but the first light-transmitting portion 13 may not be provided.

[0310] In some embodiments, as shown in Figures 24 and 25, the angle α1 between a portion of the first inclined surface 10 and the first surface 12 of the first color resist 5 near the substrate 1 is an obtuse angle, and the angle α1 between a portion of the first inclined surface 10 and the first surface 12 of the first color resist 5 near the substrate 1 is an acute angle. Specifically, the angle α1 between the first inclined surface 10 in contact with the planarization insulating layer 8 and the first surface 12 of the first color resist 5 near the substrate 1 is an acute angle, and the angle α1 between the first inclined surface 10 in contact with the third inclined surface 1401 of the second light-transmitting portion 14 and the first surface 12 of the first color resist 5 near the substrate 1 is an obtuse angle.

[0311] In some embodiments, the second light-transmitting portion is a gray color film.

[0312] It should be noted that, referring to the spectral diagram of a gray color filter provided in this embodiment of the present disclosure shown in Figure 26, the gray color filter spectrum exhibits transmittance troughs in the wavelength range of 480 nm to 530 nm and in the wavelength range of 580 nm to 630 nm. Thus, three transmittance peaks can be obtained at wavelengths of 380 nm to 480 nm, 480 nm to 580 nm, and 6300 nm to 780 nm. These three peaks correspond precisely to blue, green, and red light, thereby enabling the gray color filter to transmit all three colors of light. Therefore, when the second light-transmitting part is a gray color filter, while forming an EES structure with the first color resist, the second light-transmitting part can avoid excessively affecting the transmittance of blue, green, and red light.

[0313] In some embodiments, the second light-transmitting portion 14 is an organic resin to which carbon black or a colored pigment has been added. For example, adding carbon black to the organic resin can make the formed opaque insulating layer gray. Alternatively, adding a colored pigment to the organic resin can make the formed opaque insulating layer a neutral color such as light purple.

[0314] In some embodiments, as shown in Figures 15, 17, 19, 21, and 23 to 25, the shape of the cross section of the second light-transmitting portion 14 in the direction perpendicular to the substrate 1 is trapezoidal.

[0315] In some embodiments, as shown in Figures 17 to 23, the cross-sectional shape of the second light-transmitting portion 14 in the direction perpendicular to the substrate 1 is a trapezoid with a shorter upper base and a longer lower base. That is, the area of ​​the fifth surface 1402 of the second light-transmitting portion 14 is greater than the area of ​​the sixth surface 1403.

[0316] In some embodiments, as shown in Figures 17 to 23, the shape of the cross section of the second light-transmitting portion 14 in the direction perpendicular to the substrate 1 is an isosceles trapezoid with a short upper base and a long lower base.

[0317] In some embodiments, the angle between the third inclined surface and the fifth surface of the second light-transmitting portion is greater than or equal to 50° and less than or equal to 80°. This can improve the forward light emission efficiency of the cross-section where the optics reach the fifth inclined surface and the first inclined surface, thereby improving the light efficiency of the display panel and enhancing the display effect.

[0318] In some embodiments, when the transparent insulating layer of the insulating layer is planarized, the second light-transmitting portion has a transmittance of greater than or equal to 50% and less than or equal to 80% for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers in its maximum thickness region. This avoids the second light-transmitting portion from excessively affecting the transmittance of the display panel while forming an EES structure with the first color resist through the second light-transmitting portion.

[0319] Alternatively, in some embodiments, the planarization insulating layer is a non-transparent insulating layer. The transmittance of the non-transparent insulating layer at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a first transmittance. The transmittance of the second light-transmitting portion at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a third transmittance. The sum of the first and third transmittances is greater than or equal to 50% and less than or equal to 80%. This avoids excessive influence of the second light-transmitting portion and the non-transparent insulating layer on the transmittance of the display panel while simultaneously forming an EES structure through the second light-transmitting portion and the first color resist.

[0320] Alternatively, in some embodiments, the planarization insulating layer includes a non-transparent insulating layer and a transparent insulating layer located on the side of the non-transparent insulating layer facing away from the substrate. The transmittance of the non-transparent insulating layer at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a first transmittance. The transmittance of the second light-transmitting portion at its maximum thickness region for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm is a third transmittance. The sum of the first and third transmittances is greater than or equal to 50% and less than or equal to 80%. This avoids excessive influence of the second light-transmitting portion and the non-transparent insulating layer on the transmittance of the display panel while forming an EES structure through the second light-transmitting portion and the first color resist.

[0321] In some embodiments, when the display panel includes both a second light-transmitting portion and a non-transparent insulating layer, the materials of the two portions may be the same.

[0322] In some embodiments, when the display panel includes both a first light-transmitting portion and a second light-transmitting portion, the first light-transmitting portion and the second light-transmitting portion are disposed in the same layer. That is, the first light-transmitting portion and the second light-transmitting portion are made of the same material, and they can be formed in a single patterning process.

[0323] In some embodiments, when the display panel includes a first light-transmitting portion, a second light-transmitting portion, and a non-transparent insulating layer, the materials of the three portions may be the same.

[0324] In some embodiments, when the display panel includes both a first light-transmitting portion and a second light-transmitting portion, the maximum thickness of the first light-transmitting portion and the maximum thickness of the second light-transmitting portion may be equal or unequal.

[0325] In some embodiments, when the display panel includes both a first light-transmitting portion and a second light-transmitting portion, the angle between the first light-transmitting portion and the third surface, and the angle between the second light-transmitting portion and the fifth surface, may be equal or unequal.

[0326] Specifically, when the first light-transmitting part and the second light-transmitting part are formed in a patterning process, in order to simplify the manufacturing difficulty of the first light-transmitting part and the second light-transmitting part, the maximum thickness of the first light-transmitting part can be set to be equal to the maximum thickness of the second light-transmitting part, and the included angle between the first light-transmitting part and the third surface and the included angle between the second light-transmitting part and the fifth surface can be equal.

[0327] In some embodiments, as shown in Figures 1, 3 to 25, the edge of the light-shielding layer 4 is projected onto the substrate 1 and falls within the projection of the pixel definition layer 7 onto the substrate 1, and the edge of the first color resist 5 is projected onto the substrate 1 and falls within the projection of the pixel definition layer 7 onto the substrate 1.

[0328] In some embodiments, as shown in Figures 1, 3 to 25, the distance h1 between the orthographic projection of the edge of the light-shielding layer 4 onto the substrate 1 and the orthographic projection of the edge of the pixel definition layer 7 onto the substrate 1 is greater than or equal to 4 micrometers and less than or equal to 6 micrometers.

[0329] In some embodiments, as shown in Figures 1, 3 to 25, the distance h2 between the orthographic projection of the edge of the first color resist 5 onto the substrate 1 and the orthographic projection of the edge of the pixel definition layer 7 onto the substrate 1 is greater than or equal to 1.5 micrometers and less than or equal to 3.5 micrometers.

[0330] In some embodiments, when the display panel includes a first light-transmitting portion 13, as shown in Figures 14 to 23, the edge of the first light-transmitting portion 13 is projected onto the substrate 1 and falls within the projection of the pixel definition layer 7 onto the substrate 1.

[0331] Furthermore, the orthographic projection of the edge of the first light-transmitting portion 13 onto the substrate 1 is located between the orthographic projection of the edge of the light-shielding layer 4 onto the substrate 1 and the orthographic projection of the edge of the pixel definition layer 7 onto the substrate 1.

[0332] In some embodiments, when the display panel includes a first light-transmitting portion 13, as shown in Figures 14 to 23, the distance h6 between the orthographic projection of the edge of the first light-transmitting portion 13 onto the substrate 1 and the orthographic projection of the edge of the pixel definition layer 7 onto the substrate 1 is greater than or equal to 0 micrometers and less than or equal to 2 micrometers.

[0333] Based on the same inventive concept, this disclosure also provides a display device, which includes the display panel provided in this disclosure.

[0334] The display device provided in this disclosure includes any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. Other essential components of this display device are understood by those skilled in the art and will not be described in detail here, nor should they be construed as limiting this disclosure. Implementation of this display device can refer to the embodiments of the display panel described above; repeated details will not be repeated.

[0335] In summary, the display panel and display device provided in this disclosure include a first color resist comprising an inclined first slope located within a first opening and not in contact with the light-shielding layer. When light reaches the first slope, the light path of the originally side-emitted light changes, enabling it to emit light in the forward direction, thereby improving luminous efficiency and increasing light output brightness.

[0336] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0337] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A display panel, wherein, The display panel includes: Substrate; Multiple light-emitting devices are located on one side of the substrate. An encapsulation layer is located on the side of the plurality of light-emitting devices that is away from the substrate. A light-shielding layer is located on the side of the encapsulation layer opposite to the substrate; the light-shielding layer includes a plurality of first openings; the light-emitting area of ​​the light-emitting device, when projected onto the substrate, falls within the projection of the first opening onto the substrate. A plurality of first color resists are located on the side of the encapsulation layer opposite to the substrate; the first color resists include at least a portion located within the first opening; the first color resists include a first inclined surface, the orthographic projection of the first inclined surface onto the substrate is located within the orthographic projection of the first opening onto the substrate, and the first inclined surface does not contact the light-shielding layer, and the angle between the first inclined surface and the plane of the substrate is greater than 0° and less than 90°.

2. The display panel according to claim 1, wherein, At least a portion of the first inclined plane has an acute angle between it and the first surface of the first color resist on the side closest to the substrate.

3. The display panel according to claim 2, wherein, The orthographic projection of the first color resist on the substrate and the orthographic projection of the light-shielding layer on the substrate do not overlap; The first color resist further includes: a second surface located on the side of the first surface opposite to the substrate; the first inclined surface is a side surface connecting the first surface and the second surface.

4. The display panel according to claim 3, wherein, The area of ​​the first surface is greater than the area of ​​the second surface, and the cross-section of the first color resist perpendicular to the plane of the substrate is trapezoidal.

5. The display panel according to any one of claims 2 to 4, wherein, The first color resist includes: a plurality of sub-color resists spaced apart in a direction parallel to the plane of the substrate; the plurality of sub-color resists includes the first sub-color resist; The first sub-color resist's orthographic projection on the substrate and the light-shielding layer on the substrate The orthographic projections do not overlap; The sub-color resist further includes: a second surface located on the side of the first surface opposite to the substrate; the first inclined surface is a side surface connecting the first surface and the second surface; at least the first sub-color resist includes the first inclined surface.

6. The display panel according to claim 5, wherein, The area of ​​the first surface of the first sub-color resist is greater than the area of ​​the second surface, and the cross-section of the first sub-color resist perpendicular to the plane of the substrate is trapezoidal.

7. The display panel according to claim 5 or 6, wherein, The plurality of sub-color resists also includes a second sub-color resist; The second sub-color resist overlaps with the orthographic projection of the light-shielding layer onto the substrate.

8. The display panel according to any one of claims 2 to 7, wherein, The display panel also includes: A planarizing insulating layer is located on the side of the light-shielding layer and the first color resist that is away from the substrate; the orthographic projection of the planarizing insulating layer onto the substrate covers the orthographic projection of the light-shielding layer and the first color resist onto the substrate; the refractive index of the planarizing insulating layer is less than the refractive index of the first color resist.

9. The display panel according to claim 8, wherein, The planarized insulating layer includes: A non-transparent insulating layer, wherein the non-transparent insulating layer is a gray color film; the refractive index of the non-transparent insulating layer is less than the refractive index of the first color resist; the non-transparent insulating layer, in the region of its maximum thickness, has a transmittance of greater than or equal to 50% and less than or equal to 80% for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm.

10. The display panel according to claim 9, wherein, The distance between the surface of the non-transparent insulating layer furthest from the substrate and the surface of the first color resist furthest from the substrate is greater than or equal to 1 micrometer.

11. The display panel according to claim 9, wherein, The planarized insulating layer further includes: A transparent insulating layer is located on the side of the non-transparent insulating layer that is away from the substrate; the transmittance of the transparent insulating layer is greater than that of the non-transparent insulating layer.

12. The display panel according to claim 11, wherein, The maximum thickness of the non-transparent insulating layer is greater than or equal to 2 micrometers and less than or equal to 4 micrometers; and / or The thickness of the transparent insulating layer is greater than or equal to 2 micrometers and less than or equal to 4 micrometers.

13. The display panel according to claim 8, wherein, The planarized insulating layer includes: A transparent insulating layer; the surface of the transparent insulating layer facing away from the substrate includes a plurality of grooves; the depth of the grooves is less than the thickness of the transparent insulating layer; The display panel also includes: Multiple second color resists are located within the groove; the regions of the second color resists projected onto the substrate and the regions between the light-shielding layer and the first color resist overlap in the projection onto the substrate.

14. The display panel according to claim 13, wherein, The first color resist includes a plurality of sub-color resists; the region of the second color resist between its orthographic projection onto the substrate and the region of the adjacent sub-color resist overlaps in the orthographic projection onto the substrate.

15. The display panel according to claim 1, wherein, At least a portion of the first inclined plane has an obtuse angle between it and the first surface of the first color resist on the side closest to the substrate.

16. The display panel according to claim 15, wherein, The display panel further includes: a plurality of first light-transmitting portions; the refractive index of the first light-transmitting portions is less than the refractive index of the first color resist; The first light-transmitting portion is in contact with the light-shielding layer, and the orthographic projection of the first light-transmitting portion on the substrate overlaps with the orthographic projection of the first opening on the substrate. The first light-transmitting portion includes: a second inclined surface; the orthographic projection of the second inclined surface onto the substrate is located within the orthographic projection of the first opening onto the substrate; The first light-transmitting portion further includes: a third surface and a fourth surface parallel to the plane of the substrate; the second inclined surface is a side surface connecting the third surface and the fourth surface within the first opening; the fourth surface is located on the side of the third surface away from the substrate. The first inclined surface is in contact with the second inclined surface.

17. The display panel according to claim 16, wherein, The first light-transmitting portion is located on the side of the light-shielding layer away from the substrate, and the first light-transmitting portion covers the side of the light-shielding layer facing the first opening.

18. The display panel according to claim 17, wherein, The first light-transmitting portions corresponding to two adjacent first openings are disconnected from each other; Alternatively, the first light-transmitting portions corresponding to two adjacent first openings can be integrally connected.

19. The display panel according to claim 16, wherein, The light-shielding layer is located on the side of the first light-transmitting portion that is away from the substrate.

20. The display panel according to claim 19, wherein, The distance between the surface of the first color resist away from the substrate and the substrate is greater than the distance between the surface of the light-shielding layer away from the substrate and the substrate. The first color resist has an overlapping projection on the substrate and the side of the light-shielding layer facing the first opening has an overlapping projection on the substrate.

21. The display panel according to claim 19, wherein, The distance between the surface of the first color resist away from the substrate and the substrate is less than the distance between the surface of the light-shielding layer away from the substrate and the substrate. The orthographic projection of the first color resist on the substrate and the orthographic projection of the side of the light-shielding layer facing the first opening on the substrate do not overlap.

22. The display panel according to any one of claims 16 to 21, wherein, The display panel also includes a planarization insulating layer; The planarized insulating layer is a transparent insulating layer, and the first light-transmitting part has a transmittance of 50% and 80% for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers in the region of its maximum thickness. Alternatively, the planarized insulating layer includes a non-transparent insulating layer that, in the region of its maximum thickness, is resistant to light with wavelengths greater than or equal to 380 nanometers and less than or equal to 780 nanometers. The transmittance is a first transmittance, and the transmittance of the first light-transmitting portion in the region of its maximum thickness for light with wavelengths greater than or equal to 380 nanometers and less than or equal to 780 nanometers is a second transmittance, and the sum of the first transmittance and the second transmittance is greater than or equal to 50% and less than or equal to 80%.

23. The display panel according to any one of claims 1 to 22, wherein, The display panel further includes: a plurality of second light-transmitting sections; The refractive index of the second light-transmitting part is less than the refractive index of the first color resist; The second light-transmitting portion is located between the first color resist and the encapsulation layer, and the orthographic projection of the second light-transmitting portion on the substrate falls within the orthographic projection of the first opening on the substrate. The second light-transmitting portion includes: a fifth surface and a sixth surface parallel to the plane of the substrate, and a third inclined surface connecting the fifth surface and the sixth surface; the sixth surface is located on the side of the fifth surface away from the substrate. The first inclined surface is in contact with the third inclined surface.

24. The display panel according to claim 23, wherein, The display panel also includes a planarization insulating layer; The planarized insulating layer is a transparent insulating layer, and the second light-transmitting part has a transmittance of 50% and 80% for light with a wavelength greater than or equal to 380 nanometers and less than or equal to 780 nanometers in the region of its maximum thickness. Alternatively, the planarized insulating layer includes a non-transparent insulating layer, wherein the non-transparent insulating layer has a first transmittance for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness, and the second light-transmitting portion has a third transmittance for light with wavelengths greater than or equal to 380 nm and less than or equal to 780 nm in the region of its maximum thickness, wherein the sum of the first transmittance and the third transmittance is greater than or equal to 50% and less than or equal to 80%.

25. The display panel according to claim 22 or 23, wherein, The display panel further includes: a first light-transmitting portion; the first light-transmitting portion and the second light-transmitting portion are organic resins with added carbon black or colored pigments.

26. A display device, wherein, The display device includes a display panel according to any one of claims 1 to 25.

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